Technique by which phase transitions of chemical reactions can be followed by observation of the heat absorbed or liberated.
Technique whereby the weight of a sample can be followed over a period of time while its temperature is being changed (usually increased at a constant rate).
Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A spectroscopic technique in which a range of wavelengths is presented simultaneously with an interferometer and the spectrum is mathematically derived from the pattern thus obtained.
Differential thermal analysis in which the sample compartment of the apparatus is a differential calorimeter, allowing an exact measure of the heat of transition independent of the specific heat, thermal conductivity, and other variables of the sample.
A family of organic anion transporters that specifically transport DICARBOXYLIC ACIDS such as alpha-ketoglutaric acid across cellular membranes.
A rigorously mathematical analysis of energy relationships (heat, work, temperature, and equilibrium). It describes systems whose states are determined by thermal parameters, such as temperature, in addition to mechanical and electromagnetic parameters. (From Hawley's Condensed Chemical Dictionary, 12th ed)
Gram-negative, non-motile, capsulated, gas-producing rods found widely in nature and associated with urinary and respiratory infections in humans.
Elements with partially filled d orbitals. They constitute groups 3-12 of the periodic table of elements.
Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)
The rate dynamics in chemical or physical systems.
Binary compounds of oxygen containing the anion O(2-). The anion combines with metals to form alkaline oxides and non-metals to form acidic oxides.
Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.
The soapberry plant family of the order Sapindales, subclass Rosidae, class Magnoliopsida. Some members contain SAPONINS.
The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
Inorganic compounds that contain calcium as an integral part of the molecule.
Inorganic compounds that contain aluminum as an integral part of the molecule.
Compounds consisting of a short peptide chain conjugated with an acyl chain.
The industry concerned with processing, preparing, preserving, distributing, and serving of foods and beverages.
Agents that modify interfacial tension of water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes soaps, detergents, emulsifiers, dispersing and wetting agents, and several groups of antiseptics.
An order of basidiomycetous fungi; some species are parasitic on grasses (POACEAE) and maize.
A family of bacteria ranging from free living and saprophytic to parasitic and pathogenic forms.
The organization, management, and assumption of risks of a business or enterprise, usually implying an element of change or challenge and a new opportunity.
Disciplines that apply sciences to law. Forensic sciences include a wide range of disciplines, such as FORENSIC TOXICOLOGY; FORENSIC ANTHROPOLOGY; FORENSIC MEDICINE; FORENSIC DENTISTRY; and others.
The application of dental knowledge to questions of law.
A course of study offered by an educational institution.
The application of genetic analyses and MOLECULAR DIAGNOSTIC TECHNIQUES to legal matters and crime analysis.
The application of medical knowledge to questions of law.
For-profit enterprise with relatively few to moderate number of employees and low to moderate volume of sales.
Drugs intended for human or veterinary use, presented in their finished dosage form. Included here are materials used in the preparation and/or formulation of the finished dosage form.
A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE, the KIDNEY, and other organs in dogs, other canids, and bears. Symptoms include FEVER; EDEMA; VOMITING; and DIARRHEA.
Educational programs for pharmacists who have a bachelor's degree or a Doctor of Pharmacy degree entering a specific field of pharmacy. They may lead to an advanced degree.
Formal instruction, learning, or training in the preparation, dispensing, and proper utilization of drugs in the field of medicine.
Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used.
Educational institutions for individuals specializing in the field of pharmacy.
Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen.
An element with the atomic symbol Se, atomic number 34, and atomic weight 78.96. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.

Application of a thermodynamic nearest-neighbor model to estimate nucleic acid stability and optimize probe design: prediction of melting points of multiple mutations of apolipoprotein B-3500 and factor V with a hybridization probe genotyping assay on the LightCycler. (1/61)

BACKGROUND: PCR-based mutation detection is prone to methodological errors, e.g., in restriction length fragment polymorphism (RFLP) and allele-specific amplification (ASA), false PCR results may occur because of technical faults or atypical new mutations. METHODS: We investigated the ability of a genotyping assay based on hybridization of labeled oligonucleotides to detect and discriminate known and as yet unknown mutations in the factor V and apolipoprotein B-100 genes. Expected melting points were calculated using a nearest-neighbor model for nucleic acid duplex stability and compared with experimental findings derived from LightCycler melting curves. A method for genotyping the apolipoprotein B-100 G10699A and C10698T mutations is presented. RESULTS: All mismatches tested for in the probed sequence could be detected with a single probe. The measured melting points were in good agreement with their values predicted using the nearest-neighbor model (r = 0.96; y = 0.98x + 1.18; S(y|x) = 0.96; n = 24). CONCLUSIONS: This procedure not only allows the identification of the mutation of interest but also enables the discrimination from other potential mutations in the vicinity of the former. The nearest-neighbor model is valid for hybridization probe assays on the LightCycler and should be of general value in setting up such assays. We have shown for two clinically relevant genotyping examples that the LightCycler mutation detection system has superior discriminatory performance compared with conventional RFLP or ASA PCR-based methods for molecular diagnostic purposes. With this method, in every hybridization probe assay, all mutations under a properly designed probe should be detectable, but they will not necessarily be discriminated from each other in all cases.  (+info)

Phase transformations and age-hardening behaviors related to Au3Cu in Au-Cu-Pd alloys. (2/61)

Phase transformation behaviors in Au-Cu-Pd alloys were investigated by means of electrical resistivity measurements, hardness tests, X-ray diffraction and transmission electron microscopy. Anisothermal and isothermal annealing were performed. Two types of phase transformations were found, namely related to the single phase of Au3Cu and the coexistent phase of Au3Cu and AuCu I. The latter produced more remarkable hardening than the former. Hardening was brought about by the antiphase domain size effect of Au3Cu ordered phase in the single phase and by the formation of AuCu I ordered phase in the Au3Cu ordered matrix. There are three modes of phase transformation in the coexistent region depending on the composition. Each sequence is discussed.  (+info)

Phase transformation mechanisms in (AuCu)1-xPdx pseudobinary alloys by direct aging method. (3/61)

Phase transformation mechanisms in the AuCu-Pd pseudobinary system were studied by means of electrical resistivity measurements, hardness tests, X-ray diffraction and transmission electron microscopy. A direct aging method was employed to eliminate the otherwise unavoidable ordering that takes place rapidly during quenching into ice brine, hence it is important to distinguish the ordering processes with and without an incubation period. Three phase transformation modes occurred, namely; ordering at grain boundaries and in the grain interior with nucleation and growth mechanism after incubation, and spinodal ordering without any incubation period. The age-hardening of the alloys examined was attributed to AuCu I ordering. Nucleation and growth mechanism followed by twinning occurred in the specimens aged at higher temperatures, while spinodal ordering was seen in specimens aged in lower temperature. The spinodal ordering temperature of AuCu-Pd alloys increased according to Pd content.  (+info)

Isothermal age-hardening behaviour in a Au-1.6 wt% Ti alloy. (4/61)

This study describes research with a view to developing a new age-hardenable, high-carat dental gold alloy with better biocompatibility by addition of a small quantity of titanium to gold. The relationship between isothermal age-hardening and phase transformation of the Au-1.6 wt% Ti alloy was investigated by means of hardness testing, X-ray diffraction study, scanning electron microscopic observation and energy dispersive spectroscopy. The hardening in the initial stage of ageing seemed to be attributable to the continuous precipitation of the Au4Ti ordered phase in the supersaturated alpha solid solution matrix. The overaging with softening was attributed mainly to the formation of precipitates at the grain boundaries, which grew to bright lamellae and seemed to be composed of the Au4Ti phase.  (+info)

Relationship between Af temperature and load changes in Ni-Ti orthodontic wire under different thermomechanical conditions. (5/61)

Simple three point bending tests were performed on Ni-Ti wires with three different Af points (1 degree C, 13 degrees C and 34 degrees C) to clarify the relationship between Af temperature and load changes under constant deformation. Each wire was deformed at 37 degrees C and then thermal changes were imposed by temperatures of 2 degrees C or 60 degrees C. The load changes with thermal changes from 37 degrees C to 2 degrees C or 60 degrees C showed the same tendency on the wires with different Af points: In the loading stage, the load became lower than the initial level at 37 degrees C and in the unloading stage, the load became higher than the initial load. The largest load change in the unloading stage was measured with the 13 degrees C Af point wire. Care must be taken when handling Ni-Ti wire with an Af point of less than 1 degree C in order to prevent it from reaching the limit of critical stress of slip deformation when the temperature in the mouth rises to above 40 degrees C.  (+info)

Utility of Ni-Ti shape memory orthodontic wire. (6/61)

The characteristic temperature dependence of recovery force was evaluated for a Cu-containing Ni-Ti shape memory wire with the nominal Af point being 40 degrees C. It exerted mild recovery force within the range of the proposed optimum force at the usual oral temperature. Larger forces were generated when it was heated to temperatures above Af: 40, 50 or 60 degrees C. By subsequently cooling to temperatures below Af, the force decreased again, and vice versa. The excellent reversibility, reproducibility and durability of the recovery force were also confirmed. These results indicate that the shape memory wire may be a reasonable material for a new concept of intermittent orthodontic treatment, in which mild force will be applied to the tooth for most of the daily hours and the tooth movement will be intermittently accelerated by larger forces generated only when the patient has hot foods or drinks.  (+info)

Development of Ag-Pd-Au-Cu alloy for multiple dental applications. Part 1. Effects of Pd and Cu contents, and addition of Ga or Sn on physical properties and bond with ultra-low fusing ceramic. (7/61)

Ag-Pd-Au-Cu quaternary alloys consisting of 30-50% Ag, 20-40% Pd, 10-20% Cu and 20% Au (mother alloys) were prepared. Then 5% Sn or 5% Ga was added to the mother alloy compositions, and another two alloy systems (Sn-added alloys and Ga-added alloys) were also prepared. The bond between the prepared alloys and an ultra-low fusing ceramic as well as their physical properties such as the solidus point, liquidus point and the coefficient of thermal expansion were evaluated. The solidus point and liquidus point of the prepared alloys ranged from 802 degrees C to 1142 degrees C and from 931 degrees C to 1223 degrees C, respectively. The coefficient of thermal expansion ranged from 14.6 to 17.1 x 10(-6)/degrees C for the Sn- and Ga-added alloys. In most cases, the Pd and Cu contents significantly influenced the solidus point, liquidus point and coefficient of thermal expansion. All Sn- and Ga-added alloys showed high area fractions of retained ceramic (92.1-100%), while the mother alloy showed relatively low area fractions (82.3%) with a high standard deviation (20.5%). Based on the evaluated properties, six Sn-added alloys and four Ga-added alloys among the prepared alloys were suitable for the application of the tested ultra-low fusing ceramic.  (+info)

Reaction kinetics of solid-state cyclization of enalapril maleate investigated by isothermal FT-IR microscopic system. (8/61)

To investigate the reaction kinetics of the solid-state degradation process of enalapril maleate, a Fourier transform infrared microspectroscope equipped with thermal analyzer (thermal FT-IR microscopic system) was used. The isothermal stability study was conducted at 120-130 degrees C for 1-2 h and changes in the three-dimensional plots of the IR spectra of enalapril maleate with respect to heating time were observed. The study indicates that the bands at 1649, 1728, and 1751 cm(-1) assigned to intact enalapril maleate gradually reduced in peak intensity with heating time. However, the peak intensities at 1672 and 1738 cm(-1) (due to enalapril diketopiperazine (DKP) formation) and at 3250 cm(-1) (corresponding to water formation) gradually increased with heating time. The solid-state diketopiperazine formation and the degradation process of enalapril maleate via intramolecular cyclization were found to be simultaneous. The isothermal decomposition curves were sigmoidal and were characterized by induction and acceleration periods, indicating the presence of autocatalytic solid-state decompositions. Moreover, the power-law equation (n = 1/4) was found to provide the best fit to the kinetics of decomposition. This isothermal FT-IR microscopic system was easily used to investigate the degradation of enalapril maleate and the concomitant formation of DKP. The solid-state reaction of enalapril maleate required an activation energy of 195+/-12 kJ/mol to undergo the processes of decomposition and intramolecular cyclization.  (+info)

TY - JOUR. T1 - Crystallization behaviour of calcium aluminate glass fibres. T2 - Part I Differential thermal analysis study. AU - Sung, Yun Mo. AU - Sung, Jin Hee. PY - 1998/12/1. Y1 - 1998/12/1. N2 - Crystallization behaviour of as-spun and fully-nucleated calcium aluminate (CA) glass fibres produced via inviscid melt spinning (IMS), was studied. Differential thermal analysis (DTA) scans on the as-spun and fully-nucleated CA fibres were performed at different heating rates. By applying the Kissinger method to the DTA scan data the activation energy values for crystallization were determined to be 569 and 546 kJ mol-1, respectively for the as-spun and fully-nucleated CA fibres. The Ozawa analysis on the DTA scan data gave the Avrami parameters at 2.7 and 2.4, respectively, for the as-spun and fully-nucleated CA fibres, which indicates high tendency of bulk crystallization mode. The formation of equilibrium phases of Ca12Al14O33 and CaAl2O4 in the crystallized CA fibres was identified by using ...
TY - JOUR. T1 - Steady-state investigation of water vapor adsorption for thermally driven adsorption based greenhouse air-conditioning system. AU - Sultan, Muhammad. AU - Miyazaki, Takahiko. AU - Saha, Bidyut Baran. AU - Koyama, Shigeru. PY - 2016/1/1. Y1 - 2016/1/1. N2 - In the present study, water vapor adsorption onto silica-gel, activated carbon powder (ACP) and activated carbon fiber (ACF) has been experimentally measured at 20, 30 and 50 °C using a volumetric method based adsorption measurement apparatus for greenhouse air-conditioning (AC). The Guggenheim-Anderson-De Boer and Dubinin-Astakhov adsorption models are used to fit the adsorption data of silica-gel and ACP/ACF, respectively. The isosteric heat of adsorption is determined by Clausius-Clapeyron relationship. The adsorbents are evaluated for low-temperature regeneration with aim to develop solar operated AC system for greenhouses. Ideal growth zone for agricultural products is determined by which the steady-state desiccant AC ...
Synthesis, infrared spectra, thermal analyses and structural studies of half-sandwich Fe(III)/Fe(II) complex containing pyridine-2,6-dicarboxylate and 1,10-phenanthroline. Spectrochim Acta A Mol Biomol Spectrosc. 2009 Sep 15; 74(1):48-51 ...
Conceptual models of aquifer systems can be refined and complemented with geophysical data, and they can assist in understanding hydrogeological properties such as groundwater storage capacity. This research attempts to use geoelectrical methods, Electrical Resistivity Tomography and Induced Polarization parameters, for mapping the subsurface in alluvial fans and to demonstrate its applicability; the Punata alluvial fan was used as a case study. The resistivity measurements proved to be a good tool for mapping the subsurface in the fan, especially when used in combination with Induced Polarization parameters (i.e., Normalized Chargeability). The Punata alluvial fan characterization indicated that the top part of the subsurface is composed of boulders in a matrix of finer particles and that the grain size decreases with depth; the electrical resistivity of these deposits ranged from 200 to 1000 Ωm, while the values of normalized chargeability were lower than 0.05 mS/m. The bottom of the aquifer system
Thermal tests for the determination of endotherms, exotherms, and weight loss on heating or cooling are performed for client samples. Thermal analysis lab techniques include differential scanning calorimetry, differential thermal analysis, thermomechanical analysis, dynamic mechanical analysis, thermogravimetric analysis, and pyrolysis combustion flow calorimetry.. Thermal analysis capabilities:. ...
Electrical resistivity tomography (ERT) is a geophysical technique for imaging sub-surface variation of resistivity value from 2D/3D electrical resistivity survey made at surface or borehole. The properties that affect the resistivity of soil or bedrock include porosity, water content, composition (clay mineral and metal content), the salinity of the pore water, and grain size distribution. During resistivity surveys, artificial-ly-generated, near direct current (DC) between current electrodes are injected into the ground and electric potential between two or more pairs of receiver electrodes are measured simultaneously. 2D/3D Inverse modeling is then performed to obtain a sub-surface model of the surveyed site. Therefore, the resistivity tomography survey is ideally suited to investigate the lateral and vertical change of subsurface resistivity and also delineate three-dimensional resistivity anomalies.. Depending on the clients need, SDI uses state of the art multi-channel resistivity ...
The effects of Nb addition on crystallization kinetics and giant magneto impedance (GMI) properties of Fe39Co39Si8B14 amorphous wires prepared by in-water quenching system have been investigated. Thermal behaviors of the wires have been investigated by thermal electrical resistivity measurement and differential scanning calroimetry. The substitution of 4 at% Nb for Fe and Co increases crystallization temperature and merges two crystallization peaks into one peak, leading to a significant increase in thermal stability against crystallization for Fe37Co37Nb4Si8B14 wire. The formation of Fe2Nb phase due to addition of Nb increases the activation energy for crystallization from 425 to 550 kJ/mol. The GMI properties of the alloys are evaluated at driving current amplitude of 10 mA and a frequency of 400 kHz. The alloys show the single peak behavior in the GMI profile. The change in GMI properties increases from 10% at 0 at% Nb to 25% at 4 at% Nb. ...
The dehydration behaviors of two different hydrated zinc borate species, Zn[B3O3(OH)5] · H2O and Zn[B3O4(OH)3], which are industrially important flame retardants, were studied by thermal gravimetric(TG) analysis and in situ diffuse reflectance infrared Fourier transform (DRIFT) spectroscopy. Dehydration onset temperatures of Zn[B3O3(OH)5] · H2O and Zn[B3O4(OH)3] were 129 and 320°C, respectively, at a 10°C/min ramp rate. A very small amount of boric acid was volatilized in addition to water vapor when both samples were heated at 250°C. A significant amount of water vapor was adsorbed by Zn[B3O3(OH)5] · H2O from air at 25°C. However, Zn[B3O4(OH)3] adsorbed a very small amount of water under the same conditions. Both zinc borates did not have a tendency to cake during storage ...
Submarine groundwater discharge (SGD) is an important conduit that links terrestrial and marine environments. SGD conveys both water and water-borne constituents into coastal waters, where these inflows may impact near-shore ecosystem health and sustainability. Multichannel electrical resistivity techniques have proven to be a powerful tool to examine scales and dynamics of SGD and SGD forcings. However, there are uncertainties both in data aquisition and data processing that must be addressed to maximize the effectiveness of this tool in estuarine or marine environments. These issues most often relate to discerning subtle nuances in the flow of electricity through variably saturated media that can also be highly conductive (i.e., seawater). Three contrasting field sites were examined for this study to assess the effectiveness of electrical resistivity techniques in varying coastal settings by comparing resistivity data to direct salinity and resistivity observations, quantifying changes in lithology
The WO3 thin films have been synthesized on to the glass substrates by a simple and easy spin coating method at different deposition cycles and their sensor responses towards various concentrations of NO2 gas were investigated. The WO3 films were spin coated at a spinning rate of 2500-3000 rpm for 5, 10 and 15 deposition cycles, respectively. Then the films were annealed at 400 °C for 1 h in a furnace. The structural, morphological, optical and electrical properties of WO3 films were studied by different characterization techniques such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), FT-RAMAN Spectroscopy and electrical resistivity measurements by laboratory made two probe method respectively. It reveals a spherical grain - like morphology with a pure monoclinic phase of WO3. The FT-RAMAN spectra also confirm the pure monoclinic phase of WO3. The WO3-10 film sensor exhibits maximum gas sensitivity 21.93 and 102.4% to 5 and 100 ppm NO2 at 200 °C, respectively. The WO3-10 thin ...
TY - JOUR. T1 - Kinetics of Cation Redisribution in Ferrospinels. AU - Sujata, K.. AU - Mason, Thomas O. PY - 1992. Y1 - 1992. N2 - In situ electrical resistivity measurements were employed to follow the kinetics of cation redistribution in ferrospinels, xFe3O4-(1 -x)MeFe2O4 (Me = Co, Mg, Mn, or Ni) or xFe3O4-FeMe2O4 (Me = Al) with x≥ 0.2. Relaxation temperatures (at 20°C/min heating rate) were established and kinetic parameters-activation energies and time constants-were determined for each cation. These parameters were insensitive to grain size, cation ratio, and oxygen nonstoichiometry. The mechanism was shown to be a local homogeneous point defect reaction in contrast to the heterogeneous nucleation and growth mechanism reported to take place in ferrispinels lacking Fe2+. Electron hopping between Fe2+ and Fe3+ in ferrospinels apparently screens the excess ionic charge associated with the diffusing species and enables homogeneous point defect reactions with lower attendant activation ...
Earth Sciences: Electrical Resistivity Tomography Earth Volumetric Studio and EnterVol excel in their ability to handle analysis and visualization of geophysical data including Electrical Resistivity Tomography. For example, 3D resistivity can be analyzed from 2D ground arrays and airborne surveys.
Browse updated listing of salbutamol sulphate (cas 51022-70-9), salbutamol sulphate manufacturers, salbutamol sulphate suppliers and exporters. These salbutamol sulphate manufacturing companies offer high quality products to their clients.
EN] The reaction kinetics of a mixture of metakaolin and lime (calcium hydroxide) in water at 60°C has been investigated using thermal analysis. The numerical results have been used to determine the nature of the reaction. It is shown that, on the whole, this pozzolanic reaction is diffusion controlled and can be represented by the Jander diffusion equation. The paper discusses a new rapid method for monitoring the reaction, utilizing a microwave oven to stop it at any desired reaction time. The nature and quantity of the reaction products were determined by differential thermal analysis (DTA), thermogravimetry (TG) and X-ray diffraction (XRD ...
The thermal properties of five types of radiation-induced wood-polymer composites based on a tropical hardwood, rubberwood (Hevea braziliensis), was studied by oxygen index measurement, differential thermal analysis (DTA) and thermogravimetry (TG). The DTA and TG curves of composites were different from those of rubberwood, which can be attributed to the presence of the incorporated polymers. Of the five composites, the one impregnated with bis(2-chloroethyl)vinyl phosphonate reduced the initial temperature of decomposition, increased the peak temperatures of exothermic reactions, and increased the char yield. Comparison with physical blends of rubberwood and the corresponding polymer provided some evidence of chemical interaction of wood and polymer in some of the composites. © 1989 ...
But now imagine theres a wrinkle in that rug. Its easy to keep pushing that wrinkle across the rug, regardless of how big the rug is. The resistance to propagating the wrinkle is analogous to the interfacial toughness that resists the propagation of a crack.. Thouless said the concept of interfacial toughness is well known in the field of fracture mechanics, where it underpins products like laminated surfaces and adhesive-based aircraft joints. But until now, it hadnt been applied in ice mitigation. The advance came when Thouless learned of Tutejas previous work and saw an opportunity.. Traditionally, fracture mechanics researchers only care about interfacial toughness, and ice mitigation researchers often only care about interfacial strength, Thouless said. But both parameters are important for understanding adhesion.. I pointed out to Anish that if he were to test increasing lengths of ice, he would find the failure load would rise while interfacial strength was important, but then ...
Abstract : Selenium (Se) is an essential trace element, and its deficiency in the humans leads to increase the risk of variousdiseases, such as cancer and heart diseases. The objective of this study was to investigate the influence of biofield energytreatment on the physical and thermal properties of the selenium powder. The selenium powder was divided into two partsdenoted as control and treated. The Control part was remained as untreated and treated part received Mr. Trivedis biofield energytreatment. Both control and treated selenium samples were characterized using x-ray diffraction (XRD), differential scanningcalorimetry (DSC), thermogravimetric analysis - differential thermal analysis (TGA-DTA), and Fourier transform infraredspectroscopy (FT-IR). The XRD data showed that biofield energy treatment has slightly altered the lattice parameter (0.07%),unit cell volume (0.15%), density (-0.14%), atomic weight (0.15%), and nuclear charge per unit volume (-0.21%) in the treatedselenium powder as ...
The effect of sample preparation procedures on the glass transition and crystallization of amorphous Se has been studied by differential thermal analysis.
In this paper we study the crystallisation processes of Cu-Fe-Ni-S quaternary system which is the basis for nickel-copper sulphide ores. Experimental sample of the initial bulk composition (% mol): Cu = 17.19, Fe = 19.05, Ni = 19.66, S = 44.10 was synthesized using the quazi-equilibrium directional crystallization method. The results of the microscopy study have shown that the produced ingot consists of 6 zones with different phase and chemical compositions. The main part of the ingot is zone IV. The samples extracted from this zone were examined by methods of differential thermal analysis (DTA), scanning electron microscopy (SEM), and energy dispersive X-tay spectrometry (EDS). Microscopic studies suggest that the ingot in this zone is characterised by the coexistence of tenite and bornite solid solutions (tss and bnss correspondingly), but upon further cooling tss is subject to decomposition into daughter phases. The obtained data, though, can also be interpreted as the crystallization of the ...
The effect of Y-Mn co-doped Bi1-xYxFe0.95Mn0.05O3 (x = 0, 0.03) on structural, magnetic and dielectric properties are investigated. Both BFO and BY3FMO are prepared by conventional solid state reaction method. X-ray Diffraction (XRD) analysis confirms the formation of single phase BFO after Y-Mn co-doping. Field Effect Scanning Electron Microscope (FESEM) micrograph reveals the reduction in grain size. Shift in ferroelectric transition (Tc) from 8330C to 8440C is observed from Differential Thermal Analysis (DTA) in the vicinity of BFO. An increase in band gap is observed for BY3FMO (Eg = 2.10 eV) from UV-Visible Spectroscopy. An enhanced weak ferromagnetic behavior is observed at Room temperature after Y-Mn co-doping. Room temperature dielectric behavior is observed for BFO and BY3FMO.. ...
Nanocrystalline CoyZn1-yHozFe2-zO4 (where y = 0.0, 0.25, 0.5, 0.75, 1.00 and z=0.0, 0.03, 0.06, 0.08, 0.1) ferrites were prepared by sol-gel auto combustion method at pH of 8. Samples were obtained by annealing at relatively low temperature 600 °C for 4 h and characterized by thermo gravimetric/differential thermal analysis (TG/DTA) all the samples were annealed at 600 °C for 4 h. The prepared samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Fourier transform infrared (FT-IR) spectroscopy. Particle size measured from XRD and TEM are in good agreement with each other. The TEM study reveals the fine particle nature of the ferrites with little agglomerations. The cation distribution suggests that Zn2+ ion mainly on tetrahedral-A sites, Ho3+ ions shows strong preference towards octahedral-B site, Co2+ and Fe3+ ions are randomly distributed at the tetrahedral-A and octahedral-B site. FT-IR study confirmed two main
Gadolinia-doped ceria nanopowder was prepared by glycine-nitrate combustion method with different glycine/nitrate mixing ratio. The characteristics of the synthesized powder were investigated by X-ray diffraction method, transmission electron microscopy, thermal gravity, differential thermal analysis and thermo-mechanical analysis. The smallest powder was obtained with glycine/nitrate ratio 1.00 and the lowest organic and water vapor contained powder was made with glycine/nitrate ratio 1.75. According to dilatometry, fast densification was occurred around ...
A method has been purposed to calculate some of the thermodynamic quantities for the thermal deformation of a smectite without using any basic thermodynamic data. The Hançılı (Keskin, Ankara, Turkey) bentonite containing a smectite of 88% by volume was taken as material. Thermogravimetric (TG) and differential thermal analysis (DTA) curves of the sample were obtained. Bentonite samples were heated at various temperatures between 25-900°C for the sufficient time (2 h) until to establish the thermal deformation equilibrium. Cation-exchange capacity (CEC) of heated samples was determined by using the methylene blue standard method. The CEC was used as a variable of the equilibrium. An arbitrary equilibrium constant (K a) was defined similar to chemical equilibrium constant and calculated for each temperature by using the corresponding CEC-value. The arbitrary changes in Gibbs energy (ΔG a 0) were calculated from K a-values. The real change in enthalpy (ΔH 0) and entropy (ΔS 0) was calculated ...
The external factors that influence frost hardiness such as temperature, light, moisture and nutrients are examined as well as the internal biochemical changes that are associated with hardiness. Several types of freezing such as intra- and intercellular freezing are identified and its resulting injury. It is shown that frost hardiness occurs in two stages and that differential frost hardiness between various types of tissue is important, particularly when assessing injury. The various methods for testing frost hardiness are examined. Those that have practical application, and are used operationally such as the detailed browning test (whole seedling assessment) and electrical conductivity method are discussed in detail as are the semioperational electrical impedance methods. Methods that have operational potential, but require further development are identified, with particular emphasis on the differential thermal analysis (DTA) technique. The importance to the tree grower of frost hardiness and the
We report on extensive experimental studies on thin film, single crystal, and ceramics of multiferroic bismuth ferrite BiFeO3 using differential thermal analysis, high-temperature polarized light microscopy, high-temperature and polarized Raman spectroscopy, high-temperature x-ray diffraction, dc conductivity, optical absorption and reflectivity, and domain imaging, and show that epitaxial (001) thin films of BiFeO3 are clearly monoclinic at room temperature, in agreement with recent synchrotron studies but in disagreement with all other earlier reported results. We report an orthorhombic order-disorder beta phase between 820 and 925 (±5) °C, and establish the existence range of the cubic gamma phase between 925 (±5) and 933 (±5) °C, contrary to all recent reports. We also report the refined Bi2O3-Fe2O3 phase diagram. The phase transition sequence rhombohedral-orthorhombic-cubic in bulk [monoclinic-orthorhombic-cubic in (001)BiFeO3 thin film] differs distinctly from that of BaTiO3. The ...
Thermodynamic, viscous and structural properties of melts and glasses in the AlCl3-ZnCl2 system have been investigated. The two pure components are fundamentally different in the molten state. Both metal atoms are four coordinated, however, ZnCl2 forms a corner sharing tetrahedral network whereas AlCl3 is a dimer, Al2Cl6. ZnCl2 is one of two known single component halide glass formers and additions of AlCl3 have shown to form stable glasses. The glass forming ability remains far into the binary AlCl3-ZnCl2 system.The phase diagram of the AlCl3-ZnCl2 system has been investigated by differential thermal analysis. The system is a simple eutectic system, and the eutectic point was observed at 116±2°C and 0.52±0.05 mole fraction ZnCl2. The system is highly glass forming in the range from pure ZnCl2 up to about 0.46 mole fraction ZnCl2. Glass transition temperatures measured by differential scanning calorimetry (heating rate 10 K/min) were recorded from 115°C for pure ZnCl2 to -5.5°C for 0.46 ...
Abstract: CuO-ZnO-ZrO2 (CZZ) catalysts for methanol synthesis from CO2 hydrogenation were prepared by a citric acid combustion method. The combustion reactions were analyzed in terms of propellant chemistry and the combustion behavior was recorded by thermo-gravimetric/differential thermal analysis (TG-DTA). The as-prepared CZZ powders were investigated with X-ray diffraction (XRD), N2 adsorption, temperature-programmed reduction (TPR), and reactive N2O adsorption techniques and the catalytic activities were evaluated for methanol synthesis from CO2 hydrogenation. The results show that the influence of citric acid quantity on the physicochemical and catalytic properties of CZZ is subtle, and the reason is related to the characteristics of the combustion reaction. Furthermore, the relationship between the quantity of fuel (citric acid, urea, and glycine) and the properties of the catalysts was determined. The citric acid combustion method exhibits better controllability and it is a simple, fast, ...
The Tl-I system has been studied using differential thermal analysis, X-ray diffraction, and emf measurements on TlI concentration cells. A more accurate Tl-I phase diagram is presented, according to...
On the basis of studies using a combination of differential thermal analysis, visual polythermal analysis and solid state synthesis, a detailed investigation into phase formation in the ternary reciprocal system Li, Ba // BO2, F has been carried out and its importance in growing barium borate crystals has been shown. The liquidus of the system is composed of primary crystallization fields of six compounds - BaB2O4, BaF2, LiBaF3, LiF, LiBO2 and LiBa2B5O10 - separated by co-crystallization curves and four nonvariant points ...
Correlating laboratory resistivity measurements with geophysical resistivity models helps constrain these models to the geology and lithology of an area. Throughout the Fort Irwin National Training Center area, 111 samples from both cored boreholes and surface outcrops were collected and processed for laboratory measurements. These samples represent various lithologic types that include plutonic and metamorphic (basement) rocks, lava flows, consolidated sedimentary rocks, and unconsolidated sedimentary deposits that formed in a series of intermountain basins. Basement rocks, lava flows, and some lithified tuffs are generally resistive (≥100 ohm-meters [Ω·m]) when saturated. Saturated unconsolidated samples are moderately conductive to conductive, with resistivities generally less than 100 Ω·m, and many of these samples are less than 50 Ω·m. The unconsolidated samples can further be separated into two broad groups: (1) younger sediments that are moderately conductive, owing to their limited clay
Relative permeability is one of the key parameters governing fluid flow through porous media. Determination of relative permeability is traditionally conducted in the laboratory using either recombined reservoir oil or laboratory oil at simulated reservoir conditions, or simply at laboratory conditions. This is because it is expensive to sample representative uncontaminated reservoir fluids and extremely difficult to cut reservoir cores without altering their surface properties. Restoring rock properties to their original reservoir conditions has been a technical challenge to the industry. Upscaling laboratory special core-analysis data to reservoir scale is also a concern. Consequently, the industry has been researching new methods to extract relative permeability in situ, including the utilization of specially designed permanent downhole electric resistivity array, pressure and flow rate measurements. In this study, a different approach was taken. A semi-analytical model, developed to infer ...
Parthasarathy, G and Ramakrishna, R and Asokan, S and Gopal, ESR (1986) Effect of pressure on the electrical resistivity of bulk amorphous Al23Te77 alloy under various stages of crystallization. In: Journal of Materials Science Letters, 5 (8). pp. 809-811. ...
In this paper we describe an experimental setup designed to measure simultaneously and very accurately the resistivity and the absolute thermoelectric power, also called absolute thermopower or absolute Seebeck coefficient, of solid and liquid conductors/semiconductors over a wide range of temperatures (room temperature to 1600 K in present work). A careful analysis of the existing experimental data allowed us to extend the absolute thermoelectric power scale of platinum to the range 0-1800 K with two new polynomial expressions. The experimental device is controlled by a LabView program. A detailed description of the accurate dynamic measurement methodology is given in this paper. We measure the absolute thermoelectric power and the electrical resistivity and deduce with a good accuracy the thermal conductivity using the relations between the three electronic transport coefficients, going beyond the classical Wiedemann-Franz law. We use this experimental setup and methodology to give new very ...
TY - GEN. T1 - Measurement of density and porosity profiles within mixed sediment deposits using an electrical resistivity technique. AU - Ibikunle, Olugbenga Samuel. AU - Cuthbertson, Alan. AU - McCarter, William John. AU - Samsami, Farzin. PY - 2015. Y1 - 2015. M3 - Conference contribution. SN - 978-94-920430-8-5. T3 - VLIZ Special Publication. SP - 46. EP - 48. BT - Book of Abstracts. A2 - Toorman, Erik. A2 - Mertens, Tina. A2 - Fettweis, Michael. A2 - Vanlede, Joris. T2 - 13th International Conference on Cohesive Sediment Transport Processes. Y2 - 7 September 2015 through 11 September 2015. ER - ...
The leaching of nitrate from intensively used arable soil is of major concern in many countries. In this study, we show how time lapse electrical resistivity tomography (ERT) can be used to characterize spatially heterogeneous processes of ion production, consumption, and transport in soils. A controlled release fertilizer was introduced into an undisturbed soil core in a laboratory lysimeter and subjected to infiltration events. The production of ions resulting from processes associated with nitrification and their transport through the soil core was observed by time lapse ERT and analysis of seepage water samples from a multicompartment sampler. ERT images show development and propagation of a high-conductivity plume from the fertilizer source zone. Molar amounts of nitrate produced in and exported from the soil core could be well reproduced by time lapse ERT using a spatial moment analysis. Furthermore, we observed that several shape measures of local breakthrough-curves (BTCs) of seepage ...
Electrical resistivity tomography (ERT) can be used to constrain seawater intrusion models because of its high sensitivity to total dissolved solid contents (TDS) in groundwater and its relatively high lateral coverage. However, the spatial variability of resolution in electrical imaging may prevent the correct recovery of the desired hydrochemical properties such as salt mass fraction. This paper presents a sequential approach to evaluate the feasibility of identifying hydraulic conductivity and dispersivity in density-dependent flow and transport models from surface ERT-derived mass fraction. In the course of this study, geophysical inversion was performed by using a smoothness constraint Tikhonov approach, whereas the hydrological inversion was performed using a gradient-based Levenberg-Marquardt algorithm. Two synthetic benchmarks were tested. They represent a pumping experiment in a homogeneous and heterogeneous coastal aquifer, respectively. These simulations demonstrated that only the lower salt
Electrical resistivity tomography (ERT) and transient electromagnetic (TEM) surveys were done in Luikonlahti tailings impoundment area, Eastern Finland. Purpose of the measurements were to find the structure of the tailings impoundment area and possible seepage areas. Totally 5 ERT profiles and 4 TEM profiles were measured in the tailings area. ERT and TEM measurements revealed clearly the structure of tailings impoundment. Results of the both methods agreed and coincide with the drilling results.
(ERT) or electrical resistivity imaging (ERI) is a geophysical technique for imaging sub surfaces structures from electrical measurements made at the surface, or by electrodes in one or more boreholes. It is closely related to the medical imaging
Electrical resistivity survey at an archaeological site.. Human activities that disturb natural sediments-for example, the construction of a building-cause changes to the sediment that can be detected long after all traces of the activity have vanished from the ground surface. Remote sensing (sometimes called geophysical survey) involves measuring subterranean magnetic irregularities or changes in the flow of electrical or radio waves through the ground to identify buried disturbances that are likely to be cultural in origin.. ...
The aim of this study was to formulate and evaluate microencapsulated controlled release preparations of a highly water/soluble drug, salbutamol sulphate by (water in oil) in oil emulsion technique using ethyl cellulose as the retardant material. Various processing and formulation parameters such as drug/polymer ratio, stirring speed, volume of processing medium were optimized to maximize the entrapment. The release of salbutamol sulphate from ethyl cellulose microsphere was compared and possible release mechanism proposed. Microspheres were prepared by water in oil emulsion technique using acetonitrile/dichloromethane (1:1 ratio) solvent system. Span 80 was used as the dispersing agent and n-hexane was added to harden the microspheres. The prepared microspheres were characterized for their micromeritic properties and drug loading, as well as compatibility by infrared spectroscopy, differential scanning calorimetry (DSC), X-ray powder diffractometry and scanning electron microscopy (SEM). The in-vitro
Viral load change and sequential evolution of entire hepatitis C virus genome in Irish recipients of single source-contaminated anti-D immunoglobulin*.
ABSTRACT Between the years 2008 and 2013, approximately 67 kilotons of CO2 have been injected at the Ketzin site, Germany. As part of the geophysical monitoring programme, time‐lapse electrical resistivity tomography has been applied using crosshole and surface‐downhole measurements of electrical resistivity tomography. The data collection of electrical resistivity tomography is partly based on electrodes that are permanently installed in three wells at the site (one injection well and two observation wells). Both types of ERT measurements consistently show the build‐up of a CO2‐related resistivity signature near the injection point. Based on the imaged resistivity changes and a petrophysical model, CO2 saturation levels are estimated. These CO2 saturations are interpreted in conjunction with CO2 saturations inferred from neutron‐gamma loggings. Apart from the CO2-brine substitution response in the observed resistivity changes, significant imprints from the dynamic behaviour of the CO2 in the
SILVA, G. M. L. L. da et al. The use of an axisymmetric formulation of the Finite Volume Method for the thermal analysis of the retina and ocular tissues following implantation of retinal prosthesis. J. Braz. Soc. Mech. Sci. & Eng. [online]. 2012, vol.34, n.3, pp.308-313. ISSN 1678-5878. http://dx.doi.org/10.1590/S1678-58782012000300011.. This study analyzes the heat transfer in human eyes following implantation of retinal prostheses using an axisymmetric formulation of the Finite Volume Method. The model used consisted of a vertex centered unstructured grid finite volume method in an edge-based data structure and an explicit time integration. The results of the finite volume thermal analysis in ocular tissues were determined in the presence of two types of retinal implants: subretinal and epiretinal. For the subretinal device, the maximum temperature reached in the retina was 36.78°C (309.78 K) and the irreversible thermal damage occurred at 200 days. In the case of the epiretinal implant, the ...
During recent years, knowledge of rheumatoid arthritis has increased, and management of the disease has improved. A limited number of papers have been published before on the subject of thermal analysis of degenerative cartilage but rheumatoid arthritis (RA) has not been studied previously. A new protocol had to be established before the investigation. The purpose of this study was to further characterize the altered metabolism in human RA cartilage that promotes disease progression. Previously, these methods have not been used for this purpose. The use of thermal analysis could be an effective method for controlling the relationship between biomarkers and disease progression. ...
1] J.L. Williams, Monolith structures, materials, properties and uses, Catal Today 69 (2001) (1-4), pp. 3-9. SummaryPlus , Full Text + Links , PDF (113 K) , View Record in Scopus , Cited By in Scopus (59). [2] W.M. Carty and P.W. Lednor, Monolithic ceramics and heterogeneous catalysts: honeycombs and foams, Curr Opin Solid State Mater Sci 1 (1996) (1), pp. 88-95. Abstract , Abstract + References , PDF (1078 K) , View Record in Scopus , Cited By in Scopus (20). [3] J.N. Armor, Materials needs for catalysts to improve our environment, Chem Mater 6 (1994) (6), pp. 730-738. Full Text via CrossRef , View Record in Scopus , Cited By in Scopus (30). [4] P. Bardhan, Ceramic honeycomb filters and catalysts, Curr Opin Solid State Mater Sci 2 (1997) (5), pp. 577-583. Abstract , Abstract + References , PDF (936 K) , View Record in Scopus , Cited By in Scopus (12). [5] Twigg MV, Richardson JT. Preparation and properties of ceramic foam catalyst supports. In: Preparation of Catalysts VI; 1995. p. ...
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Nano-Localized Thermal Analysis and Mapping of Surface and Sub-Surface Thermal Properties Using Scanning Thermal Microscopy (SThM)
An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.
Single crystals of La(O,F)BiSe{sub 2} were successfully grown for the first time by a CsCl flux method. Single crystal X-ray structural analysis clearly showed that La(O,F)BiSe{sub 2} crystallizes with space group P4/nmm (lattice parameters a=4.1408(2) Å, c=14.1096(6) Å). The structure is composed of alternating BiSe{sub 2} and La(O,F) layers. The bond distances and angles are similar to those of La(O,F)BiS{sub 2}. The bond valence sum calculation indicates the refined structure is slightly cation rich, suggesting the charge neutrality should be kept by modification of valence state of the cations. Magnetic susceptibility and resistivity measurements showed the compound is a superconductor with a transition temperature of 3.6 K, which is higher than that of as-grown La(O,F)BiS{sub 2}. - Graphical abstract: Single crystal La(O,F)BiSe{sub 2} has been prepared by a CsCl flux method. The structural analysis implies that La(O,F)BiSe{sub 2} is a potential superconductor having a higher T{sub c} ...
TY - JOUR. T1 - Macro- and nanotribological properties of organosilane monolayers prepared by a chemical vapor adsorption method on silicon substrates. AU - Ishida, H.. AU - Koga, T.. AU - Morita, M.. AU - Otsuka, H.. AU - Takahara, A.. PY - 2005/5/1. Y1 - 2005/5/1. N2 - Organosilane monolayers are novel ultrathin films used to control the physicochemical properties, such as friction and wear, of solid surfaces. In this study, the authors prepared alkylsilane and fluoroalkylsilane monolayers with a series of chain lengths by a chemical vapor adsorption method. The tribological properties were investigated by lateral force microscope (LFM) and friction tester. LFM nanoscale measurements of tribological properties showed that alkylsilane monolayer gave lower lateral force than the Si substrate surface. The lateral force decreased as the length of the alkyl chain increased. On the macroscale, friction test revealed that the organosilane monolayers gave lower dynamic friction coefficients than the ...
Development of a novel setup for direct colorimetric visualization of elemental mercury vapor adsorption on colloidal gold nanoparticles
In this research, the effect of heating rate on oxidation kinetics of magnesium powder particles under non-isothermal conditions was studied. For this purpose, differential thermal analysis (DTA) and thermogravimetry analysis (TGA) was done on magnesium powder particles at three heating rates of 5, 10 and 20 K min-1 up to 1000 ...
2015 CSIC. Phsophogypsum is a by-product from the processing phosphate rock. Before the use of it in cement industry such as setting regulator is necessary a study of dehydration reaction of phosphogypsum to avoid the false setting during the milling. The aim is to study the thermal behavior of two different phosphogypsum sources (Spain and Tunisia) under non-isothermal conditions in argon atmosphere by using Thermo-Gravimetriy, Differential Thermal Analysis (TG-DTA) and Differential Scanning Calorimetry (DSC). DSC experiments were carried out at temperatures ranging from ambient to 350 °C at different heating rates. The temperatures of conversion from gypsum to hemihydrate and anhydrite states and heat of dehydration were determined. Various methods were used to analyze the DSC data for reaction kinetics determination. The activation energy and frequency factor were calculated for dehydration of phosphogypsum. Activation energy values of the main dehydration reaction of phosphogypsum were ...
Perovskite [(Ba0.6Sr0.4)TiO3]-[2SiO2-B2O3]-[K2O]-La2O3 glass was prepared by conventional melt quench method. The differential thermal analysis (DTA) was performed on glass sample in the temperature range from 100℃ to 1000℃ by different heating rate to study the crystallization kinematics. The kinetic parameters characterizing the crystallization have been determined using an Arrhenius model. Glass samples were subjected to appropriate heat treatment schedules for their suitable crystallization. X-ray diffraction analysis (XRD) of glass and glass ceramic samples were done to check the amorphous state and crystalline nature. XRD of glass ceramic sample shows the major perovskite phase of BaTiO3 (BT) along with the formation of secondary phases Ba2TiSi2O8 (BTS) and Ba2Ti2B2O9 (BTB). Scanning electron microscopy (SEM) is also studied to see the morphology of the grains of major and secondary phase formation in BST glass ceramic samples. La2O3 is played an important role to increase the nucleation of
Among recently found multi-component Zr-based bulk metallic glasses (BMG), Zr₅₈.₅Cu₁₅.₆Ni₁₂.₈Al₁₀.₃Nb₂.₈ is characterized by its lower critical cooling rate requirement and absence of beryllium as one of the constituent element which makes its handling more convenient. Its large supercooled liquid regions made possible the study of thermodynamics and kinetics of this alloy. Precise thermal measurements were performed using Differential Scanning Calorimeter (DSC) and Differential Thermal Analysis (DTA). Specific heat capacity measurement in the glass, supercooled liquid and crystalline region were performed with reference to sapphire to evaluate the thermodynamic functions. Enthalpy, entropy and Gibbs free energy difference between supercooled liquid and crystal were calculated as a function of temperature. Smaller Gibbs free energy difference upon undercooling reflects the high glass forming ability of this alloy. Isothermal relaxation and crystallization studies of ...
Mineralogical, chemical, and isotopic characteristics of clays from Ocean Drilling Program (ODP) sites 1035, 856, 1036, and 858, drilled in Middle Valley at the northern end of the Juan de Fuca Ridge during Legs 139 and 169, were studied using X-ray powder diffraction, differential thermal analysis, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray fluorescence, and inductively coupled plasma-mass spectrometry. Oxygen isotope measurements on authigenic clay minerals provide a record of mineral formation temperatures. Holes 1036A and 858B are located in the present-day hydrothermally active Area of Active Venting and reflect several stages of hydrothermal alteration. Smectite and some mixed-layer chlorite-smectite clays are the dominant phyllosilicates in the upper part of holes 1036A and 858B. Nearly pure chlorite-smectite mixed-layer clays and corrensite mainly occur more than 20 meters below the seafloor. Formation temperatures of these nearly pure ...
Stability of Macro Creatine Kinases and Creatine Kinase Isoenzymes Compared: Heat Inactivation Test for Determination of Thermostable Creatine ...
The cadmium sulfate hydrate study is divided into four related, but distinct areas The thermal decomposition of CdSO4.83H2O studied by thermogravimetric analysis A quantitative analysis technique for mixtures of CdSO4 hydrates A technique was developed which was based on using thermogravimetric and differential thermal analysis The devising of another quantitative analysis method for cases in which the above method was not applicable using x-ray diffraction analysis and Various controlled conditions were established in which composition changes were observed and analyzed. Author
CeVO_4 (ICDD: 12-757) was synthesized by microwave-assisted method by using cerium sulphate and vanadium (V) oxide in an appropriate molar ratio. Characterizations were done by X-ray diffraction, Fourier transform infrared spectroscopy, ultraviolet spectrophotometry and thermogravimetric/differential thermal analysis. The material is crystallized in tetragonal system with unit cell parameters a = 7.399 Å and c = 6.496 Å and space group I41/amd(141 ...
Banerjee, Debjani (2011) Design and fabrication of an experimental set up for AC susceptibility measurement. MSc thesis.. Barapanda, Sushree Rosyla (2011) Design and fabrication of high temperature resistivity measurement setup. MSc thesis.. Behera, Jayanta Kumar (2009) Synthesis and Characterizations of ZnO Nanoparticles. MSc thesis.. Bhoi, Kalyani (2011) Design and fabrication of high temperature resistivity measurement setup. MSc thesis.. Das, Bamadev (2015) Fabrication of Chemical Vapor Deposition (CVD) Setup & Preparation of Copper Oxide (CuO) -CdX (X= Se, S) Nanoparticles Decorated Core-Shell Heterostructure. MTech by Research thesis.. Ghosh, Surya Prakash (2015) Synthesis & Characterizations of ZnO Thin Films and Nanostructures by Modified Aqueous Chemical Growth Method for Sensor Applications. MTech by Research thesis.. Ghosh, Surya Prakash (2012) Synthesis and Characterization of Zinc Oxide Nanoparticles by Sol-Gel Process. MSc thesis.. Mallick, Priyabrata (2015) Synthesis and ...
This work investigates the effects of primary compounding temperature and secondary melt processes on the mechanical response and electrical resistivity of polycarbonate filled with 3 wt % multiwalled carbon nanotubes (CNT). Nanocomposites were melt compounded in an industrial setting at a range of temperatures, and subsequently either injection molded or compression molded to produce specimens for the measurement of electrical resistivity, surface hardness, and uniaxial tensile properties. Secondary melt processing was found to be the dominant process in determining the final properties. The effects observed have been attributed to structural arrangements of the CNT network as suggested by morphological evidence of optical microscopy and resistivity measurements. Properties were found to be relatively insensitive to compounding temperature. The measured elastic moduli were consistent with existing micromechanical models.. ...
United States Geological Survey, Pacific Science Center,United States Geological Survey, Western Fisheries Research Center,United States Geological Survey, Washington Water Science Center,Nisqually National Wildlife Refuge,University of Washington,Western Washington University. Chief Scientists: Eric Grossman, USGS, Pete Swarzenski, USGS, Steve Rubin. Sediment and water sampling, electrical resistivity mapping, groundwater, monitoring, habitat characterization data of field activity A-6-09-PS in Nisqually Delta, WA from 08/16/2009 to 08/22/2009, ,http://walrus.wr.usgs.gov/infobank/a/a609ps/html/a-6-09-ps.meta.html, ...
Numerical models (e.g., MODFLOW/SEAWAT) are commonly used to quantify the extent and magnitude of seawater intrusion (SI). Since coastal communities must account for SI into local aquifers, numerical models can be an effective planning and management tool as coastal populations increase. While these models tend to be limited by the availability of hydrological data, uncertainty in these results can be substantially reduced through the integration of field geophysical measurements. Field measurements employing electrical resistivity tomography (ERT) were utilized to calibrate a density-dependent groundwater flow model for Gulf Shores, Alabama. Specifically, six independent ERT profiles were produced within a modeled area adjacent to a shallow lake and along the near-shore boundary. The ERT methods were employed to a depth of 95 meters, encapsulating two aquifer systems with previously identified SI concerns (Chandler et al, 1986; Murgulet and Tick, 2008). Results from the ERT deployments were ...
After growing a crystal it is important to characterize its properties. In contrast to neutron scattering, many characterization techniques, such as magnetization and resistivity measurements as well as single crystal X-ray diffraction, require singlecrystalline pieces with a particular shape, crystallographic orientation and polished surfaces. Corresponding equipment in our crystal growth lab includes a Laue camera to determine the crystal orientation, diamond blade and wire saws, different types of polishing jigs, a polishing machine, and a polarization microscope. The Laue camera is mounted on a rotating anode X-ray generator (Rigaku). Different types of goniometers are available, depending on the needs. All goniometers fit on our saws and one of them can be mounted on a polishing jig, which allows the preparation of polished surfaces with an error less than 1 degree in the orientation. Our large angle goniometer is useful for orienting new compounds with irregular shape, since Laue pictures ...
The electrical activity of low doses of Ge implanted into GaAs amorphous layers has been studied. The amorphous layers were created by the heavy (1E15 & 3E15 ions/cm 2) Ga- or As-ion pre-bombardment into GaAs substrate. Ge-ion implantation was performed at 120 KeV with doses from SE12 to 1E14 ions/cm 2. Implanted samples were annealed with pyrolytic silicon nitride encapsulants at temperatures 750, 850 & 950oC. Anneal behavior of sheet resistance, surface carrier concentration, Hall mobility and activation efficiency for various doses of Ge were measured by employing van der Pauw Halleffect/resistivity measurements.
A theory is presented which shows the electrical resistivity due to localized spins to be proportional to ln(T squared + 1/(T sub 1) squared), where T sub 1 is the usual spin relaxation time of the local spins measured in spin resonance experiments. The predictions of this theory when applied to the spin relaxation arising from spin-orbit coupling agree with recent experiments on Cu:Mn+Pt alloys. The theory explains the observed anomalous dependence of the electrical resistivity both on temperature and on concentration of Pt impurities. (Author)(*ALLOYS
Nitrogen (N) and boron (B) codoped diamond-like carbon (DLC) films were prepared on silicon oxide substrates by RF magnetron sputtering to optimize the ele
Massive surface fracturing and sand ejection took place during the main shock of the May 20, 2012, earthquake (Ml = 5.9) in the Emilia-Romagna region, northern Italy. These phenomena were induced by the liquefaction of water-saturated sand layers, and they damaged several buildings, as well as many roads and sidewalks. They were clustered between the villages of SantAgostino and Vigarano Mainarda, located along a paleo-reach of the Reno River [Papathanassiou et al. 2012, this volume].
E794-06(2018) Standard Test Method for Melting And Crystallization Temperatures By Thermal Analysis crystallization temperature~ melting temperature~
Abstract: Thermal analysis (TA) is a technology that can be applied to evaluate the relationship between the physical properties of substances and temperature changes under programmed temperature control. It has been widely used in many fields and is particularly useful for determining the thermal stability and service life of polymers and other materials, the stability of drugs, and the danger of flammable and explosive materials. Simultaneously, the mechanism of dehydration, decomposition, and degradation of inorganic materials or dissociation of complexes can be studied and the decomposition rates of environmental pollutants can be estimated. Recently, TA kinetics has become the most extensively studied topic in TA research. The main purpose of kinetic analysis is to obtain the three kinetic triplets of a reaction process, namely, activation energy Ea, pre-exponential factors A, and and mechanism function f(a). For a solid-state reaction, many mathematical models and corresponding data ...
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Po-20140129 PETROCHEMICALS www Platts. Com POLYMERSCAN Volume 37 Issue. 1100-1110 1085-1095 LDPE G-P 1587-1609 88 00-89. 00 1939 52-1961. 56. Catalogue-dea-2013 INDEX 4 Profil de lEntreprise 8 Technologie 10 M6J 1. 0000000000 FUT FUT 1P2 CME-CHI HURRICANE INDEX EVENT 20 BINARY. BRENT FRONT MONTH PLATTS SWAP FUTURES 2010-12-05 1C. LINEAR LOW DENSITY POLYETHYLENE PCW BALMO SWAP FUTURES jeffrey lynn henderson indices trucmuche 2016 allah te espero capitulo 170. Total ldpe 1200mn18 foire artisanale du kram tunisie chandon moet patricia. Violences conjugales champagne pommery brut royal platts price for iron ore Les analyses du Platts annoncent une chute de 61, 7 des prix spot du celui de lOpep 30 de. Polymertrack Weekly Polymer HDPE, LDPE, Polypropylene Keywords: ldpe, ldpe bedeutung, ldpe folie, ldpe flachbeutel, ldpe vs hdpe, ldpe beutel wikipedia, SP Global Platts Petrochemical Index PGPI-February Une vaste slection de la catgorie Divers. Dcouvrez le produit Crochet de scurit Biber-Ziegel pour ...
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Small amounts of carbon fibers (about 5%) were determined in samples containing polyphenylene sulfide (PPS), inorganic filler (glass in this case), and polytetrafluoroethylene (PTFE) by means of thermal analysis using both thermogravimetry (TG), and differential scanning calorimetry (DSC). Two different, but related, methods were used to quantitatively determine the contents of the sample. The first, which was nominally called the Indirect Approach, utilizes DSC for the determination of the polymeric components and TG for the determination of the residue (inorganic fillers or glass or both). The amount of carbon is then determined by difference. The second method, which was nominally called the Direct Approach, utilizes DSC for the determination of PTFE and TG for the determination of all other components. The agreement between the two methods is good.. ...
A particularly challenging yet common problem at MIT Lincoln Laboratory is designing prototypes to function under repeated variations of temperature. Thermal expansion of components causes separation and alignment errors in optical systems, and stresses due to mismatches of thermal expansion at material interfaces cause fatigue and failure of components and structures. In addition to managing thermal expansion, minimizing system weight and maintaining short production cycles are critical requirements. However, presently available materials with low thermal expansion either are heavy or are expensive with long fabrication lead times. Furthermore, existing materials have essentially fixed thermal expansions and provide only limited freedom to tune the response to the requirements of an application. These materials are solid materials with properties determined primarily by their elemental composition and microstructure. Here, we take a different approach and engineer materials by specifying underlying
The area near the inlet of Spuyten Duyvil Creek in Inwood Hill Park in New York City exhibits complex hydrological processes. The inlet is a tidal flat, which contains brackish water; a mixture of saltwater and freshwater. The area was modified by man, built on a shell bed and contains heterogeneous sediment. One field adjacent to the inlet contains several small sinkholes. Electrical resistivity and ground conductivity techniques were used in order to get an understanding of the hydrological processes of this field. It was hypothesized that the formation of the sinkholes is due to the tidal forcing of the water table. The measurements collected at the study site show evidence that tides do have an effect on the water table. The ground conductivity surveys showed variable conductivity around the sinkholes however the greatest change in conductivity occurred laterally in the field. The conductivity increased going towards a patch of vegetation located in the southeast corner of the field. Higher
Date 2016. Abstract Two large-scale column experiments have been performed to test the hydrodynamic behaviour of unsaturated, compacted granite sawdust-a material produced during the dressing of dimension stone in Pontevedra (Spain). One of the columns was equipped with psychrometers and capacitance probes while, in the other, a radial array of 80 electrodes made possible a time-dependent 3D electrical resistivity survey. All these devices allowed investigating and modelling the progressive saturation of the material. The study includes a straightforward methodology developed to calibrate the resistivity signals based on standard Proctor-compacted specimens. The progressive saturation of the granite sawdust reveals different stages: initially, an uneven advance of the saturation front (fingering) occurs; later on, this feature vanishes and is replaced by a more regular advance of the saturation front. Numerical analysis of the results shows that the yield capacity of the granite sawdust is*0.39 ...
Land drainage has caused a significant increase in surface water salinity in the River Thurne catchment of northeast Norfolk which is related to saline intrusion in the underlying Crag aquifer. A survey of surface water C1 concentration revealed values ranging from ,100 mg 1-1 to ,12 000 mg 1-1, with C1 exceeding 10 000 mg 1-1 at the centre of the coastal marshes. In the sub-surface, an electromagnetic induction survey demonstrated elevated apparent conductivities of 100-200 mS m-1 at the greatest exploration depth, except for areas having higher topography where fresh, or slightly brackish water persists. An electrical resistivity survey identified a low true resistivity layer (typically ,1 Ωm), assumed representative of saline water, at a depth of typically ,10 m below sea level under the coastal marshes. Higher land associated with dunes and isolated blocks of elevated land within the marshes gave a saline interface at 10-15 m below sea level, and beneath the catchment watersheds at ,20 m. ...
TY - JOUR. T1 - The effect of metakaolin on chloride penetration into concrete. AU - Ferreira, Miguel. AU - Costa, Pedro M.. PY - 2011. Y1 - 2011. N2 - Extensive research and practical experience have shown that partial replacement of cement by metakaolin improves concrete durability as a result of the refinement of the pore structure. While literature confirms much research on the performance of concrete with metakaolin, it is scarce concerning the performance with regards to chloride penetration. For the study, reference mixes where made with CEM I 42,5R cement. Two contents levels where defined: 330 kg/m3 and 440 kg/m3 based on mix designs currently used in the ready-mixindustry for C20/25 and C30/37 concretes. Cement was partially replaced with metakaolin with levels varying from 10-20%. All mixes where tested for compressive strength, electrical resistivity and chloride diffusion characteristics (migration and immersion testing). The results demonstrate the improved resistance to chloride ...
The exponential growth in integrated device density has yielded high-performance microprocessors containing almost 1 billion transistors per chip for the current 65 nm technology. Continuous scaling of the devices and performance requires innovations in materials, processes, and designs for both back-end-of-line (BEoL) interconnects and packaging structures. Mechanical reliability has been a limiting factor for implementation of new materials and processes. Since 1997, copper (Cu) has been selected as the interconnect material to replace aluminum (Al) for two major reasons: (1) Cu has a lower electrical resistivity than Al, thus reducing the R-part of RC delay; (2) Cu has a higher melting point than Al, thus reducing diffusional creep and related reliability concerns such as stress migration and electromigration. However, implementation of Cu interconnects required new processes, such as Cu electroplating, damascene processes, and chemical-mechanical planarization (CMP), which led to a series of ...
The effect of surfaces on the electron transport at reduced scales is attracting continuous interest due to its broad impact on both the understanding of materials properties and their application for nanoelectronics. The size dependence of for conductor?s electrical resistivity ? due to electron surface scattering is most commonly described within the framework of Fuchs and Sondheimer (FS) and their various extensions, which uses a phenomenological scattering parameter p to define the probability of electrons being elastically (i.e. specularly) scattered by the surface without causing an increase of ? at reduced size. However, a basic understanding of what surface chemistry and structure parameters determine the specularity p is still lacking. In addition, the assumption of a spherical Fermi surface in the FS model is too simple for transition metals to give accurate account of the actual surface scattering effect. The goal of this study is to develop an understanding of the physics governing electron
Applications Toner Properties Quick charge-up resulting in a medium negative electrostatic charge Excellent electrostatic charge stability under different enviromental conditions (L/L as well as H/H) Good charge modulator due to the core semi-conductivity (electrical resistivity 107Ω·cm) High level of hydrophobicity High purity and very low moisture content High UV-B-absorbitivity ...
An electrical resistivity tomography survey has clearly indicated the presence of substantial vertical zones of contrasting material beneath a set of conspicuous linear surface hollows that cut across a spur forming part of the Cotswold Hills escarpment in Gloucestershire. These zones are compared with nearby quarry exposures and are inferred to be gulls - graben-like structures at least 80 m deep filled with collapsed blocks of bedrock with intervening air-filled spaces, lying within areas of relatively undisrupted gently dipping strata, and which under some circumstances would present a significant geohazard. Our results confirm the great potential of this non-invasive and rapid survey technique for investigating such phenomena, and provide an exemplar for comparison with surveys elsewhere, to assist identification of similar features.. ...
Spatial monitoring of groundwater drawdown and rebound associated with quarry dewatering using automated time-lapse electrical resistivity tomography and distribution guided ...
Polymorphism means the ability of a solid material to exist in more than one form or crystal structure. Polymorphic forms can be investigated with DSC.
hermal Analysis of Rubbers and Rubbery Materials is a must for everybody involved in material and product development, testing, processing, quality assurance, or failure analysis in industry and laboratories.
hermal Analysis of Rubbers and Rubbery Materials is a must for everybody involved in material and product development, testing, processing, quality assurance, or failure analysis in industry and laboratories.
Hiden Analytical has designed and developed high-quality mass spectrometer-based gas analysis systems for over 35 years and Low2High Vacuum is proud to be a distributor for Hiden.. They have built a reputation for delivering superior sensitivity, accuracy and reproducibility instruments together with a first-class global service and application support network.. From dedicated four-pole triple filter UHV TPD to solutions for fully integrated catalysis microreactor and mass spectrometer systems, Hiden has developed a range of analytical spectrometers that address the most advanced and demanding applications.. Please refer to the brochure below for more information about the products. ...
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tekniikka & Koodaus Projects for $30 - $250. The project contains coding (EES, Python, Matlab, etc.). Its a system analysis project for thermodynamics....
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Author: Schneider, A. et al.; Genre: Book Chapter; Published in Print: 2004; Title: Computer simulation of diffusion controlled phase transformations
Author: Schneider, A. et al.; Genre: Book Chapter; Published in Print: 2004; Title: Computer simulation of diffusion controlled phase transformations
Fluorite Phase Transformations under Vacuum. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Buy, download and read Phase Transformations of Elements Under High Pressure ebook online in PDF format for iPhone, iPad, Android, Computer and Mobile readers. Author: E. Yu Tonkov; E.G. Ponyatovsky. ISBN: 9781420037609. Publisher: CRC Press. As laboratories replace heavy hydraulic presses and bulky high-pressure chambers with miniature diamond anvils, traditional heaters with laser heating, and continue to improve methods of shock compres
This thesis is concerned with self-organization phenomena in hard and wear resistant transition-metal nitride coatings, both during growth and during post deposition thermal annealing. The uniting physical principle in the studied systems is the immiscibility of their constituent parts, which leads, under certain conditions, to structural variations on the nanoscale. The study of such structures is challenging, and during this work atom probe tomography (apt) was developed as a viable tool for their study. Ti0.33Al0.67N was observed to undergo spinodal decomposition upon annealing to 900 °C, by the use of apt in combination with electron microscopy. The addition of C to TiSiN was found to promote and refine the feather-like microstructure common in the system, with an ensuing decrease in thermal stability. An age-hardening of 36 % was measured in arc evaporated Zr0.44Al0.56N1.20, which was a nanocomposite of cubic, hexagonal, and amorphous phases. Magnetron sputtering of Zr0.64Al0.36N at 900 ...
He also edited The Differential Thermal Investigation of Clays and the two volume Differential thermal analysis He played an ... Mackenzie, Robert (1970). Differential thermal analysis. London: Academic Press. ISBN 978-0124644014. "Obituary Robert Cameron ... For some years he continued research into thermal analysis in the Department of Chemistry in the University of Aberdeen and ... Mackenzie, Robert (1957). The differential thermal investigation of clays. London: Mineralogical Society(Clay Minerals Group). ...
Thermogravimetry Differential thermal analysis Differential scanning calorimetry Danish, Muhammad; Ahmad, Nazir; Zahara, Nayab ... Soc., 7 (4): 846-852, retrieved 13 May 2011 Danish, Muhammad; Ahmad, Nazir; Ali, Saqib; Muhammad, Niaz (July 2011), "Thermal ... Thermokinetics deals with the study of thermal decomposition kinetics. ...
Some thermal analysis methods: differential scanning calorimetry, thermogravimetric analysis; Electrophoresis; Field flow ... Compared to normal analyses methods, microanalysis: Requires less time for preparation Requires less sample and solvent and ... Microanalysis is the chemical identification and quantitative analysis of very small amounts of chemical substances (generally ...
This transformation is commonly evidenced by differential thermal analysis (DTA). Two characteristic temperatures are measured ... Thermal expansion data have been reported for a number of fluoride glasses, in the temperature range between ambient and Tg. In ... Finally they are annealed in a furnace to reduce the thermal stresses induced during the quenching phase. This process results ... and because thermal expansion decreases the number of polarisable elements per unit volume. As a result dn/dT is positive for ...
Differential thermal analysis measurements on 1-pentadecanol were performed at temperatures from 300-370 K and pressures of up ... "Differential Thermal Analysis of Long‐Chain n‐Alcohols under High Pressure". Berichte der Bunsengesellschaft für physikalische ...
In 1965 the company introduced the Differential Thermalyzer, a differential thermal analysis instrument. It acquired Pfeiffer ...
Other thermal analysis techniques are typically combinations of the basic techniques and include differential thermal analysis ... thermomechanical analysis, dynamic mechanical thermal analysis, and dielectric thermal analysis. Dynamic mechanical ... A true workhorse for polymer characterization is thermal analysis, particularly Differential scanning calorimetry. Changes in ... Thermogravimetric analysis can also give an indication of polymer thermal stability and the effects of additives such as flame ...
Phase transitions and volumetric properties of cryolite, Na3AlF6: Differential thermal analysis to 100 MPa; American ... Abildgaard presented a report about Norwegian titanium ores and about the analysis of them undertaken by him. He also ...
Mazur P (July 1963). "Studies on rapidly frozen suspensions of yeast cells by differential thermal analysis and conductometry ... An analysis of 11,768 cryopreserved human embryos". Fertility and Sterility. 93 (1): 109-15. doi:10.1016/j.fertnstert.2008.09. ...
"Ice Propagation in Dehardened Alpine Plant Species Studied by Infrared Differential Thermal Analysis (IDTA)". Arctic, Antarctic ... As new leaves protrude from the snow, the new shoots give off heat from thermal reradiation and/or respiratory heat which melts ... Steinger, Thomas; Körner, Christian; Schmid, Bernhard (1996). "Long-term persistence in a changing climate: DNA analysis ...
Up to 12 scientific thermocouples provide the sample's temperature profile and allow differential thermal analysis. Materials ... After bringing those two samples back to ground for analysis by the scientists the rest of the samples from batch 1 will be ... A FI is an arrangement of heating elements, isolating zones and cooling zones contained in a thermal insulation assembly. On ... For creating large gradients, a Liquid Metal Ring enhances the thermal coupling between the SCA and the cooling zone. The ...
1942 - (and Rowland, R. A.) Differential thermal analysis of clay minerals and other hydrous materials, Part 1: American ... differential thermal analysis; dehydration and rehydration of clay minerals; effects of heat on clay minerals; clay minerals in ...
The thermal stability can be measured by thermogravimetric analysis and differential scanning calorimetry. Polyesters are ... When looking at thermal stability, the typical variables measured include glass transition, initial decomposition temperature, ... Thus, longer alkyl substituents results in lower thermal stability. Most applications favor polymers which are soluble in as ... In addition, polyphosphonates exhibit good thermal stability and optical transparency; they are also suitable for casting into ...
Optical dilatometer Strain gauge Hans Lehmann, refuge Gatzke Dilatometry and differential thermal analysis for the evaluation ... Another common application of a dilatometer is the measurement of thermal expansion. Thermal expansivity is an important ... A connecting rod transfers the thermal expansion to a strain gauge, which measures the shift. Since the measuring system ( ... Matched low-expansion materials and differential constructions can be used to minimize the influence of connecting rod ...
Reyes-Labarta, J.A.; Marcilla, A. (2008). "Differential Scanning Calorimetry Analysis of the Thermal Treatment of Ternary ... Reyes-Labarta, J.A.; Olaya, M.M.; Marcilla, A. (2006). "DSC Study of the Transitions Involved in the Thermal Treatment of ... Reyes-Labarta, J.A.; Marcilla, A. (2012). "Thermal Treatment and Degradation of Crosslinked Ethylene Vinyl Acetate-Polyethylene ... Complete Kinetic Modelling and Analysis". Industrial & Engineering Chemistry Research. 51 (28): 9515-9530. doi:10.1021/ ...
Reyes-Labarta, J.A.; Marcilla, A. (2008). "Differential Scanning Calorimetry Analysis of the Thermal Treatment of Ternary ... The analysis involves calculating total hydraulic cycles to fatigue failure. The speed of sound in a foam is determined by the ... Reyes-Labarta, J.A.; Olaya, M.M.; Marcilla, A. (2006). "DSC Study of the Transitions Involved in the Thermal Treatment of ... The low density of these foams makes them excellent as thermal insulators and flotation devices and their lightness and ...
Ghosh made contributions in the field of application of Differential Thermal Analysis (D.T.A) as tool to the systematic study ... Bhattacharyya, S.K.; Ramachandran, V.S.; Ghosh, J.C. (1957). "14 Application of Differential Thermal Analysis to the Study of ...
1977). Determination of Phase Transitions in Gutta-Percha by Differential Thermal Analysis, H.M. Rootare & J.M. Powers, 56 J. ... Thermal Analysis of Experimental and Commercial Gutta-Percha, H.M. Rootare, J.M. Powers, & R.L. Smith, 2 J. Endod. p. 244 (Aug ...
"Temperature Calibration of Differential Scanning Calorimeters". Journal of Thermal Analysis. 45 (6): 1285-1296. doi:10.1007/ ... "Benzene - Study: Market, Analysis, Trends 2021 - Ceresana". www.ceresana.com. Archived from the original on 21 December 2017. ... Cyclohexane is also used for calibration of differential scanning calorimetry (DSC) instruments, because of a convenient ...
... is a materials characterization technique which combines the thermal analysis principles of differential ... Localised thermal analysis of a packaging film, Price et al. Thermochimica Acta Vol.332 (1999) p:143-149 Micro-thermal analysis ... Micro-thermal analysis was launched commercially in March 1998. Microthermal analysis has been extended to higher spatial ... This technique has been widely used for localized thermal analysis, where the probe is heated rapidly to avoid thermal ...
"The thermal analysis of nonezymatic glycosylation of human serum albumin: differential scanning calorimetry and circular ... Thermal processing of proteins and carbohydrates brings major changes in allergenicity. AGEs are antigenic and represent many ... doi:10.1016/S0040-6031(02)00006-0. Kańska U, Boratyński J (2002). "Thermal glycation of proteins by D-glucose and D-fructose". ... Mohamadi-Nejad A, Moosavi-Movahedi AA, Hakimelahi GH, Sheibani N (September 2002). "Thermodynamic analysis of human serum ...
... and differential thermal analysis (DTA) or differential scanning calorimetry (DSC) are also important to predict the thermal ... The MCC particles with size lower than 5 μm must not be more than 10%. Thermogravimetric analysis (TGA) ...
... may be plotted to determine inflection points useful for in-depth interpretations as well as differential thermal analysis. A ... Thermogravimetric analysis or thermal gravimetric analysis (TGA) is a method of thermal analysis in which the mass of a sample ... thermal decomposition, and solid-gas reactions (e.g., oxidation or reduction). Thermogravimetric analysis (TGA) is conducted on ... to incur a thermal reaction. The thermal reaction may occur under a variety of atmospheres including: ambient air, vacuum, ...
... in Namibia Dental Technologists Association Detainee Treatment Act Development trust association Differential thermal analysis ... a tandem mass spectrometry data analysis program used for protein identification D-threonine aldolase, an enzyme DTA sarl, a ...
... differential thermal analysis, combustion velocity approaches, among others. There have been a variety of systems studied, ... There have been environmental analysis conducted to show that SHS has a lesser environmental impact than traditional solution- ... "Dynamics of phase transformation during thermal explosion in the Al-Ni system: Influence of mechanical activation". Physica B: ...
... and IR-spectroscopy and differential thermal analysis, to characterize the pharmaceutical compounds being studied. Publications ... Thermomicroscopy in the Analysis of Pharmaceuticals. Vol. 45. Pergamon, 1971. Kuhnert-Brandstätter, M., A. Kofler, and G. ... from her pioneering research dealt mainly with microscopy and thermal analysis, thereby greatly enhancing the international ...
Differential scanning calorimetry DTA - Differential thermal analysis DVS - Dynamic vapour sorption EBIC - Electron beam ... Dielectric thermal analysis dHvA - De Haas-van Alphen effect DIC - Differential interference contrast microscopy Dielectric ... Thermogravimetric analysis TIKA - Transmitting ion kinetic analysis TIMS - Thermal ionization mass spectrometry TIRFM - Total ... List of materials analysis methods: Contents: Top 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z μSR - see Muon spin ...
Dolutegravir, an antiretroviral drug used to treat HIV/AIDS Differential thermogravimetry, a differential thermal analysis ...
Faust carried out analyses of the mineral, and found amongst others that in differential thermal analysis huntite showed two ... Chemical analyses showed huntite to consist of Mg3Ca(CO3)4. Huntite often occurs in combination with other Mg/Ca carbonates ... doi:10.1016/0040-6031(85)87032-5. Hollingbery, LA; Hull TR (2010). "The Thermal Decomposition of Huntite and Hydromagnesite - A ... Hollingbery, LA; Hull TR (2012). "The Thermal Decomposition of Natural Mixtures of Huntite and Hydromagnesite". Thermochimica ...
Differential Thermal Analysis and Thermogravimetry (DTA-TG), XFS Spectrometer, UV-VIS Spectrometer, Medium Pressure Liquid ...
2.25 per million British thermal units ($7.7/MWh) with BG Group signed in 2011; $2.49 per million British thermal units ($8.5/ ... A safety analysis was not required at the time, and none was performed during the planning, design or construction of the ... these investments were spurred by increasing shale gas production in the United States and a large price differential between ... "LNG Tank System Analysis". Archived from the original on 22 May 2015. Retrieved 17 April 2015.. ...
"MOSFET DIFFERENTIAL AMPLIFIER" (PDF). Boston University. Retrieved August 10, 2019.. *^ "IGBT Module 5SNA 2400E170100" (PDF). ... Transistor Circuit Analysis - Theory and Solutions to 235 Problems; 2nd Ed; Alfred Gronner; Simon and Schuster; 244 pages; 1970 ... Transistors and other solid-state devices are susceptible to damage from very brief electrical and thermal events, including ...
John W. Merck (1997). "A phylogenetic analysis of the euryapsid reptiles". Journal of Vertebrate Paleontology. 17 (Supplement ... Spotila J.R. & Standora, E.A. (1985) Environmental constraints on the thermal energetics of sea turtles. 'Copeia 3: 694-702 ... Because of this ridge, some of these squamates are capable of producing ventricular pressure differentials that are equivalent ... Hildebran, M. & Goslow, G. (2001): Analysis of Vertebrate Structure. 5th edition. John Wiley & sons inc, New York. 635 pp. ISBN ...
The resulting densified fuel is easier to transport and feed into thermal generation systems, such as boilers. ... Brinkman, N. et al., "Well-to-Wheels Analysis of Advanced/Vehicle Systems", 2005. ... Differential technological development. *Disruptive Innovation. *Ephemeralization. *Exploratory engineering. *Fictional ... thermal conversion, chemical conversion, and biochemical conversion. This biomass conversion can result in fuel in solid, ...
Economic and Benefits Analysis for the Final Section 316(b) Phase II Existing Facilities Rule (PDF) (Report). EPA. 2004. EPA ... Thermal pollution of rivers, estuaries and coastal waters is a consideration when siting such plants. Water returned to aquatic ... Biofouling may also create differential oxygen concentrations increasing corrosion rates. OTC and open recirculating systems ... Liquid cooling techniques are increasingly being used for the thermal management of electronic components. This type of cooling ...
Arnaud Denjoy (1884-1974): French mathematician, noted for his contributions to harmonic analysis and differential equations.[ ... Meghnad Saha (1893-1956): Indian astrophysicist noted for his development in 1920 of the thermal ionization equation, has ... differential geometry and partial differential equations.[140]. *Jonathan Haidt (1964-): American moral psychologist at the ... John Snygg (2011). A New Approach to Differential Geometry Using Clifford's Geometric Algebra. Springer. p. 111. ISBN ...
Qualitative analysis can be used and spectrophotometers are used to record spectra of compounds by scanning broad wavelength ... but infrared measurement is also challenging because virtually everything emits IR light as thermal radiation, especially at ... Spectrophotometry is a tool that hinges on the quantitative analysis of molecules depending on how much light is absorbed by ... As described in the applications section, spectrophotometry can be used in both qualitative and quantitative analysis of DNA, ...
Robison, JR , Warner ME (2006) Differential impacts of photoacclimation and thermal stress on the photobiology of four ... 39,0 39,1 39,2 Reimer JD, Shah MMR, Sinniger F, Yanagi K, Suda S (2010) Preliminary analyses of cultured Symbiodinium isolated ... Fitt WK, Brown BE, Warner ME, Dunne RP (2001) Coral bleaching: interpretation of thermal tolerance limits and thermal ... Peng S, Wang Y, Wang L, Chen WU, Lu C, Fang L, Chen C (2010) Proteomic analysis of symbiosome membranes in Cnidaria- ...
A similar differential signaling system is used in RS485, LocalTalk, USB, FireWire, and differential SCSI. ... However, the thermal stability is determined only by the hardest layer and not influenced by the soft layer.[48][49] ... The S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology) feature counts the total number of errors in the entire HDD ... Serial ATA (SATA). The SATA data cable has one data pair for differential transmission of data to the device, and one pair for ...
This is because thermal mass flowmeters monitor variations in one or more of the thermal characteristics (temperature, thermal ... such low flows create small pressure differentials but longer flow elements create higher, more easily measured differentials. ... Analysis of this shifted wavelength can be used to directly, and with great precision, determine the speed of the particle and ... Thermal mass flowmeter (also called thermal dispersion or thermal displacement flowmeter) technology is used for compressed air ...
... defined as the rate of thermal conduction through a material per unit area per unit thickness per unit temperature differential ... McQuiston, Faye C.; Parker, Jerald D.; Spitler, Jeffrey D. (2005). Heating, Ventilating, and Air Conditioning: Analysis and ... Thermal conductivity versus apparent thermal conductivity[edit]. Thermal conductivity is conventionally ... thermal conductivity. The SI unit of thermal resistivity is K·m/W. Thermal conductivity assumes that the heat transfer of the ...
for the purposes of research, teaching, or analysis; (also) one in which chemicals or drugs are manufactured." ... Fritzsche, A (2017). "Corporate Foresight in Open Laboratories - A Translational Approach". Technology Analysis & Strategic ... are used for either simulations or the analysis of data. Scientists in other fields will use still other types of laboratories ... Thermal cyclers (PCR). *Photometer. *Refrigerators and Freezers. *Universal testing machine. *ULT Freezers ...
Analysis of small groups in New Guinea imply that cultural group selection might be a good explanation for slowly changing ... This is despite access to many non thermal processing, like grinding, pounding or heating to 48 degrees. With approximately 86 ... Cultural differences among individuals can lead to differential survival of individuals. The patterns of this selective process ... Recently, analysis of natural selection on the human genome suggests that civilization has accelerated genetic change in humans ...
Submerged pressure differential[edit]. Submerged pressure differential based converters are a comparatively newer technology [ ... McCormick, Michael E.; Ertekin, R. Cengiz (2009). "Renewable sea power: Waves, tides, and thermals - new research funding seeks ... Submerged pressure differential converters frequently use flexible membranes as the working surface between the ocean and the ... Example's of submerged pressure differential converters include M3 Wave and Bombora Wave Power's mWave. ...
Analysis of lighting quality to ensure that adverse components of lighting (for example, glare or incorrect color spectrum) are ... Some lamps require the ballast to have thermal protection.. *fluorescent light: A tube coated with phosphor containing low ... A variation of this technology is the 'differential switching or dead-band' photoelectric control which has multiple ... Analysis of lighting quality particularly emphasizes use of natural lighting, but also considers spectral content if artificial ...
Non-specific analysis[edit]. One major problem with older breath analyzers is non-specificity: the machines identify not only ... Linear variable differential transformer. *Liquid capacitive inclinometers. *Odometer. *Photoelectric sensor. *Piezoelectric ... Labianca, Dominick A. (March 1990). "The chemical basis of the Breathalyzer: A critical analysis". Journal of Chemical ... Breath analyzers do not directly measure blood alcohol content or concentration, which requires the analysis of a blood sample ...
Analysis and discussion". Zoological Journal of the Linnean Society. 149 (1): 1-95. PMC 2517308 . PMID 18784798. doi:10.1111/j. ... Turner, J. Scott (1997). "On the thermal capacity of a bird's egg warmed by a brood patch". Physiological Zoology. 70 (4): 470- ... "Empirical evidence for differential organ reductions during trans-oceanic bird flight". Proceedings of the Royal Society B ... Pullis La Rouche, G. (2006). Birding in the United States: a demographic and economic analysis. Waterbirds around the world. ...
15th Meeting of the Venus Exploration Analysis Group (VEXAG) 2017. *^ Astronomers ponder possible life adrift in Venus' clouds ... The dark spots are clouds silhouetted against the very hot lower atmosphere emitting thermal infrared radiation. ... The super-rotation on Venus is differential, which means that the equatorial troposphere super-rotates more slowly than the ... The Venusian atmosphere has been found to be sufficiently out of equilibrium as to require further investigation.[55] Analysis ...
"Differential Scanning Calorimetry Analysis of the Thermal Treatment of Ternary Mixtures of Ethylene Vinyl Acetate, Polyethylene ... The analysis involves calculating total hydraulic cycles to fatigue failure. The speed of sound in a foam is determined by the ... The low density of these foams makes them excellent as thermal insulators and flotation devices and their lightness and ... Complete Kinetic Modelling and Analysis". Industrial & Engineering Chemistry Research. 51 (28): 9515-9530. doi:10.1021/ ...
Just as the formation of ice in air can produce clouds, snow, or hail, depending upon the thermal history of a given portion of ... Similar as modulus hardening, the analysis of interfacial area can be complicated by dislocation line distortion. ... and involves careful balancing of the driving force for precipitation and the thermal activation energy available for both ...
Assuming no damping, the differential equation governing a simple pendulum of length l. {\displaystyle l}. , where g. {\ ... These early clocks, due to their verge escapements, had wide pendulum swings of 80-100°. In his 1673 analysis of pendulums, ... Observation that pendulum clocks slowed down in summer brought the realisation that thermal expansion and contraction of the ... In 1822, Gauss was able to state that the least-squares approach to regression analysis is optimal in the sense that in a ...
The differential uptake of the three carbon isotopes leads to 13. C/12. C and 14. C/12. C ratios in plants that differ from the ... was included in a 1955 analysis by Libby, with an estimated age of 1,917 ± 200 years.[98][99] Based on an analysis of the ... This can be done with a thermal diffusion column. The process takes about a month and requires a sample about ten times as ... For example, if a series of radiocarbon dates is taken from different levels in a stratigraphic sequence, Bayesian analysis can ...
The differential, or infinitesimal increment, for the internal energy in an infinitesimal process is an exact differential dU. ... But two thermal reservoirs are needed, because transfer of energy as heat is irreversible. A single cycle sees energy taken by ... One is the approach through the law of conservation of energy taken as prior to thermodynamics, with a mechanical analysis of ... The lowercase Greek letter delta, δ, is the symbol for inexact differentials. The integral of any inexact differential over the ...
"UNEP Risoe CDM/JI Pipeline Analysis and Database". UNEP Risoe Centre. 2010-02-01. Retrieved 2010-02-22.. ... Some of these offsets are used to reduce the cost differential between renewable and conventional energy production, increasing ... https://www.researchgate.net/publication/26623958_Analysis_and_Optimization_of_Carbon_Dioxide_Emission_Mitigation_Options_in_ ...
F. Ardente; G. Beccali; M. Cellura (2005). "Life cycle assessment of a solar thermal collector: Sensitivity analysis, energy ... A differential controller senses temperature differences between water leaving the solar collector and the water in the storage ... Solar thermal market grows strongly in Europe 2009 ESTIF 2010. *^ Solar thermal market grows strongly in Europe 2008 ESTIF 5/ ... Main article: Solar thermal collector. Solar thermal collectors capture and retain heat from the sun and use it to heat a ...
Differential diagnosis[edit]. The differential diagnosis for sepsis is broad and has to examine (to exclude) the non-infectious ... Systematic review with meta-analysis and trial sequential analysis". BMJ. 346: f839. doi:10.1136/bmj.f839. PMC 3573769. PMID ... "The diagnostic and prognostic value of systems biology research in major traumatic and thermal injury: A review". Burns & ... Systematic review and meta-analysis with trial sequential analysis of all-cause mortality". BMJ. 349: g4561. doi:10.1136/bmj. ...
Nuclear-thermal rocket. 9[34]. 107[34]. Minutes[34]. ,20 6: Prototype demonstrated on ground ... Johns Hopkins University, Chemical Propulsion Information Analysis Center. *Tool for Liquid Rocket Engine Thermodynamic ... Differential sail. *Faster-than-light. *Field propulsion *RF resonant cavity thruster. *Gravitational shielding *Diametric ... Solar-thermal rocket. 7 - 12. 1 - 100. Weeks. ,20 4: Component validated in lab[39]. ...
The entropy of an isolated system in thermal equilibrium containing an amount of energy of E. {\displaystyle E}. is:. S. =. k. ... Sychev, V. V. (1991). The Differential Equations of Thermodynamics. Taylor & Francis. ISBN 978-1-56032-121-7. Retrieved 2012-11 ... For purposes of physical analysis, it is often enough convenient to make an assumption of thermodynamic equilibrium. Such an ... An Account of the Kinetic Theory of Viscosity, Thermal Conduction and Diffusion in Gases, third edition 1970, Cambridge ...
Such fiber is called multi-mode fiber, from the electromagnetic analysis (see below). In a step-index multi-mode fiber, rays of ... Linear variable differential transformer. *Liquid capacitive inclinometers. *Odometer. *Photoelectric sensor. *Piezoelectric ... The waveguide analysis shows that the light energy in the fiber is not completely confined in the core. Instead, especially in ... The electromagnetic analysis may also be required to understand behaviors such as speckle that occur when coherent light ...
the thermal diffusivity. *In organic chemistry the α-carbon is the backbone carbon next to the carbonyl carbon, most often for ... a differential form (esp. on an analytic space). *the symbol ϖ, a graphic variant of π, is sometimes construed as omega with a ... the Skorokhod integral in Malliavin calculus, a subfield of stochastic analysis. *the minimum degree of any vertex in a given ...
Differential thermal analysis; application and results in mineralogy.. [Werner Smykatz-Kloss] ... Thermal analysis. a schema:Intangible ;. schema:name "Thermal analysis"@en ;. .. ... schema:name "Differential thermal analysis; application and results in mineralogy."@en ;. schema:productID "1031394" ;. schema: ... Differential thermal analysis; application and results in mineralogy.. Author:. Werner Smykatz-Kloss. ...
The service has a TDA/TGA/DSC equipment for thermal gravimetric analysis and differential thermal analysis. It has a TGA-DTA ... The service has a TDA/TGA/DSC equipment for thermal gravimetric analysis and differential thermal analysis. It has a TGA-DTA ... differential scanning calorimeter/differential thermal analysis (heat flow DSC /DTA) and a DSC (Differential Scanning ... Chemical analysis of solids by thermal gravimetric analysis using a thermal gravimetric analyzer (Perkin Elmer TGA7) over a ...
"Differential Thermal Analysis" by people in Harvard Catalyst Profiles by year, and whether "Differential Thermal Analysis" was ... "Differential Thermal Analysis" by people in Profiles.. * Thermal motions of the E. coli glucose-galactose binding protein ... "Differential Thermal Analysis" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH ( ... Differential Thermal Analysis*Differential Thermal Analysis. *Analysis, Differential Thermal. *Analyses, Differential Thermal ...
Bhadeshia H.K.D.H. "Thermal analyses techniques. Differential thermal analysis". University of Cambridge, Material Science and ... Differential thermal analysis (DTA) is a thermoanalytic technique that is similar to differential scanning calorimetry. In DTA ... Villanueva, PrE, Girela F. y Castellanos M. "The application of differential thermal analysis and thermogravimetric analysis to ... Smykatz-Kloss W., Heil A, Kaeding L. and Roller E. "Thermal analysis in environmental studies". In: Thermal analysis in ...
A simple differential thermal analysis (DTA) technique has been developed to study phase relations of various chemical systems ... Part I: Differential thermal analysis of the NaCl-KCl liquidas at 1 atmosphere and 500, 1000, 1500, and 2000 bars. Series title ... Part I: Differential thermal analysis of the NaCl-KCl liquidas at 1 atmosphere and 500, 1000, 1500, and 2000 bars. Geochimica ... A simple differential thermal analysis (DTA) technique has been developed to study phase relations of various chemical systems ...
Using these liquidus and solidus data and other published information, a thermodynamic-PTX analysis of solid-liquid equilibria ... in the binary system KCl-H2O and the liquidus in the ternary system NaCl-KCl-H2O were determined by using isobaric differential ... thermal analysis (DTA) cooling scans at pressures up to 2 kbars. Sylvite solubilities along the three-phase curve in the binary ... Differential thermal analysis of the sylvite liquidus in the KCl-H2O binary, the liquidus in the NaCl-KCl-H2O ternary, and the ...
... to monitor chemical properties and thermal stability of fulvic and humic acids ... Use of thermal analysis coupled with differential scanning calorimetry, quadrupole mass spectrometry and infrared spectroscopy ... Use of thermal analysis coupled with differential scanning calorimetry, quadrupole mass spectrometry and infrared spectroscopy ... The statistical analysis showed that the parameters calculated from QMS (areas of m/z = 16, 17, 18, 44), DSC (MaxDSC) and TG ( ...
Find out information about derivative differential thermal analysis. A method for precise determination in thermograms of ... slight temperature changes by taking the first derivative of the differential thermal analysis curve... Explanation of ... derivative differential thermal analysis. Also found in: Acronyms. derivative differential thermal analysis. [də′riv·əd·iv dif· ... Derivative differential thermal analysis , Article about derivative differential thermal analysis by The Free Dictionary https ...
With the high-pressure Differential Scanning Calorimeter, DSC 204 HP Phoenix®, thermal effects in a sample can be analyzed in ... DSC 204 F1 Phoenix® - Differential Scanning Calorimeter.. The versatile Premium Differential Scanning Calorimeter, DSC 204 F1 ... The DSC 404 F3 Pegasus®, High-Temperature Differential Scanning Calorimeter, is part of the economical NETZSCH F3-product line ... The DSC 404 F3 Pegasus®, High-Temperature Differential Scanning Calorimeter, can be operated from -150°C to 2000°C with various ...
Differential Thermal Analysis. Less Soil Science. 86(2):106, August 1958. * Favorites ...
Thermal Gravimetric and Differential Thermal Analysis (TG/DTA) was conducted to determine the thermal stability of the mixtures ... Figure 10. Differential Thermal Analysis (DTA) curves for MgH2 + 4 mol% Nb2O5 at heating rates of 1, 4, 10 and 15 °C/min. ... Figure 10. Differential Thermal Analysis (DTA) curves for MgH2 + 4 mol% Nb2O5 at heating rates of 1, 4, 10 and 15 °C/min. ... Differential Thermal Analysis and Kissinger Plots. To further understand the effects of the transition metal oxide catalysts on ...
3.3.1. Differential thermal analysis. The DTA data of the obtained powders, shown in Figure 1, revealed, for the sample with x ... according to the differential thermal analysis (DTA) results, at 650, 850 and 1050°C, using a dwell time of 4 h, with a heating ... and the obtained powders were thermally analysed by differential thermal analysis (DTA), performed in a Linseis Apparatus L92/ ... The thermal treatment performed at 1200°C caused the fusion of the powders, and therefore there is no information about the ...
Differential Thermal Analysis. (DTA). Dynamic Scanning Calorimetry. (DSC). Drop Calorimetry. (DropCal). Thermo Gravimetry. (TG) ...
Thermogravimetric and differential thermal analysis of potassium bicarbonate contaminated cellulose. When samples undergo a ... results of thermogravimetric and differential thermal analyses are difficult to interpret. Nevertheless, careful comparison of ... Raman spectroscopy in the analysis of cellulose nanomaterials. Cellulose nanomaterials (CNs) are new types of materials derived ...
... dynamic mechanical thermal analysis, DMTA, differential scanning calorimetry, thermal transitions, DSC ... Thermal Analysis: Proceedings of the 3rd International Conference on Thermal Analysis held at Convention Hall. Davos, ... Thermogravimetric and differential thermal analysis of potassium bicarbonate contaminated cellulose. When samples undergo a ... Differential scanning calorimetry (DSC) and dynamic mechanical thermal analysis (DMTA) were used to characterize the morphology ...
Thermogravimetric and differential thermal analysis of cellulose, hemicellulose, and lignin , M. V. Ramiah , download , BookSC ... Thermogravimetric and differential thermal analysis of cellulose, hemicellulose, and lignin. M. V. Ramiah ...
Differential thermal analysis (DTA) scans on the as-spun and fully-nucleated CA fibres were performed at different heating ... Differential thermal analysis (DTA) scans on the as-spun and fully-nucleated CA fibres were performed at different heating ... Differential thermal analysis (DTA) scans on the as-spun and fully-nucleated CA fibres were performed at different heating ... Differential thermal analysis (DTA) scans on the as-spun and fully-nucleated CA fibres were performed at different heating ...
Kinetic Study of Sodium-Water Reaction Phenomena by Differential Thermal Analysis Shin Kikuchi, Shin Kikuchi ... Differential thermal analysis (DTA) provides us with the valuable information on the kinetic parameters, including activation ... "Kinetic Study of Sodium-Water Reaction Phenomena by Differential Thermal Analysis." Proceedings of the 2012 20th International ... Sodium, Thermal analysis, Water, Sodium fast reactors, Temperature, Heat transfer, Safety, Boilers, Chemical kinetics, Chemical ...
The thermal features of the CNFs were evaluated using differential thermal analysis (DTA), differential scanning calorimetry ( ... The TGA-differential gravimetric analysis thermogram showed that Tmax was 700°C. The DSC heat flow curve showed a melting ... The DTA thermogram showed the endothermic process had a maximum temperature of 82.27°C at −15.48 mV and that thermal ... DSC), thermogravimetric analysis (TGA) derivative and TGA. The calculated thermo-physical parameters were melting temperature ( ...
Lipopeptide produced by MSA31 was found to be thermostable which was evident in differential scanning calorimetry analysis. The ... Lipopeptide produced by MSA31 was found to be thermostable which was evident in differential scanning calorimetry analysis. The ... Thermal Gravimetric (TG) and Differential Scanning Calorimetric (DSC) Analysis. Thermal Gravimetric and Differential Scanning ... Lipopeptide produced by MSA31 was found to be thermostable which was evident in differential scanning calorimetry analysis. The ...
Differential Thermal Analyses of CdMnZnTe Alloys Description: N/A Date: August 27, 2013 ... The Implications of Cost-Effectiveness Analysis of Medical Technology 1 1 This Week in Texas 1 1 Traditional Narratives 1 1 U.S ... Calculation of the high temperature thermal conductivity of the LAW FeP glass from the above three measured properties. ... Measurement of the high temperature thermal diffusivity of the LAW FeP glass; and (6) ...
ThermoGravimetric and Differential Thermal Analysis (tg-dta). The Perkin Elmer Diamond TG-DTA can be used to perform both ... The Perkin Elmer Optima 4100DV ICP-OES system can determine trace elemental analysis (ppm to ppb) of around 60 elements. ... The Chemical and Trace Analysis Lab housed in the Department of Chemistry and Physics has a wide variety of scientific ... Although many facilities and research groups may have thier own equipment, the 20+ pieces of instrumentation in the analysis ...
Differential thermal analysis. EC. Evening complex. ELF. Early flowering. ER. Endoplasmic reticulum ... Chen J, Tian Q, Pang T, Jiang L, Wu R, Xia X, Yin W (2014) Deep-sequencing transcriptome analysis of low temperature perception ... Adams S, Manfield I, Stockley P, Carré IA (2015) Revised morning loops of the Arabidopsis circadian clock based on analyses of ... Bassett CL, Wisniewski ME, Artlip TS, Norelli JL, Renaut J, Farrel RE Jr (2006) Global analysis of genes regulated by low ...
... and various thermal analysis techniques. The title is a must-read for pharmacy graduates. ... This title simplifies the understanding of the basic principles of Pharmaceutical Analysis by bridging the gap between the ... Differential Thermal Analysis. Pages 207-213. Akash, Muhammad Sajid Hamid (et al.) ... Elaborates on important topics in Pharmaceutical Analysis such as spectrophotometry, chromatography and thermal analysis ...
Measuring Equipment for Differential Thermal Analysis. Flint, N. & Hansen, P. F.. 31/12/2002 → 31/12/2002 ... An Analysis of the Habermasian Public Sphere in a Gender Political Context. Fiig, C. ... A Combined Evolutionary Simulation and Empirical Analysis (Toke Reichstein (Ph.D. project). Reichstein, T. ...
differential thermal analysis (DTA). diffusion. Dirac. directional solidification. dislocations. dispersant. display. ... Material preparation, data collection and analysis were performed by [full name], [full name] and [full name]. The first draft ... 1) made substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of ... Conceptualization: [full name], …; Methodology: [full name], …; Formal analysis and investigation: [full name], …; Writing - ...
Differential Thermal Analysis h. Heat Treating i. X-Ray Diffraction j. Fastener Testing ... Differential Thermal Analysis h. Heat Treating i. X-Ray Diffraction j. Fastener Testing ... Diferential Thermal Analysis h. Heat Treating i. X-Ray Diffraction j. Fastener Testing ...
4.20 Differential Scanning Calorimetry (DSC). 4.21 Differential Thermal Analysis (DTA). 4.22 Dynamic Mechanical Analysis (DMA) ... failure analysis, market development and technical service. Sina holds six patents. ...
... of sample preparation procedures on the glass transition and crystallization of amorphous Se has been studied by differential ... procedures on the glass transition and crystallization of amorphous Se has been studied by differential thermal analysis. The ...
  • Differential thermal analysis (DTA) is a thermoanalytic technique that is similar to differential scanning calorimetry. (wikipedia.org)
  • Thermogravimetry-coupled with differential scanning calorimetry, quadrupole mass spectrometry, and Fourier-transform infrared spectroscopy (TG-DSC-QMS-FTIR)-was applied to monitor the thermal stability (in an N 2 pyrolytic atmosphere) and chemical properties of natural polymers, fulvic (FA) and humic acids (HA), isolated from chemically different soils. (figshare.com)
  • The thermal features of the CNFs were evaluated using differential thermal analysis (DTA), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) derivative and TGA. (dovepress.com)
  • Lipopeptide produced by MSA31 was found to be thermostable which was evident in differential scanning calorimetry analysis. (frontiersin.org)
  • Seven different brands of 0.019"x0.025" thermally activated nickel-titanium archwires were tested as received by differential scanning calorimetry (DSC) over the temperature range from -100°C to 150°C at 10°C/min. (scielo.br)
  • Differential scanning calorimetry (DSC) is the most frequently used thermal analysis technique. (mt.com)
  • Measurement principles Differential scanning calorimetry (DSC) measures the difference between the heat flows from the sample and reference sides of a sensor as a function of temperature or time. (mt.com)
  • Differential scanning calorimetry, thermogravimetric analysis and differential thermal analysis. (dal.ca)
  • Differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DM. (sintef.no)
  • Differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA) and. (sintef.no)
  • Thermal analysis lab techniques include differential scanning calorimetry, differential thermal analysis, thermomechanical analysis, dynamic mechanical analysis, thermogravimetric analysis, and pyrolysis combustion flow calorimetry. (edu.sa)
  • The simplest and most common apparatus used are Differential Scanning Calorimetry (DSC) and Differential Thermal Analysis (DTA). (hse.gov.uk)
  • It can be measured using dynamic mechanical analysis, thermal mechanical analysis or differential scanning calorimetry. (photonics.com)
  • Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) were undertaken for thermal characterization. (ias.ac.in)
  • The analytical parameters for the three NIOSH methods of analysis, X-ray diffraction, infrared spectroscopy, and a wet colorimetric technique, are summarized. (cdc.gov)
  • This method is a powerful analytical and non-destructive technique which has already been used for the analysis of plasma modified wood surfaces and in the characterization of wood's reactions. (scribd.com)
  • MSEN 5360 Materials Characterization (3 semester hours) Survey of atomic and structural analysis techniques as applied to surface and bulk materials. (utdallas.edu)
  • QMS and FTIR modules enabled the chemical identification (by masses and by functional groups, respectively) of gaseous species evolved during thermal decomposition at R1, R2 and R3. (figshare.com)
  • The main applications of TGA are content determination, thermal stability, decomposition kinetics, and compositional analysis. (mt.com)
  • The thermal decomposition of hydrogen peroxide vapour" (Thesis). (wikipedia.org)
  • The apparatus includes a sample cell containing a sensor for measuring the dielectric and thermal properties of the sample. (google.com)
  • McConnell, Duncan, and Earley, J.W. (1951) Apparatus for differential thermal analysis: Am. Ceramic Soc. (ku.edu)
  • These apparatus use a sample size of a few milligrams and are used to for purposes such as identifying at what temperature materials involved in a reaction decompose and the possible effects of contaminants on thermal stability. (hse.gov.uk)
  • DSC 204 F1 Phoenix® - Differential Scanning Calorimeter. (nauchpribor.com)
  • The versatile Premium Differential Scanning Calorimeter, DSC 204 F1 Phoenix ® , fascinates with its unique concept: all essential operational components are integrated into the instrument and optional add-ons can be installed anytime on site. (nauchpribor.com)
  • The µ-sensor stands out for its high level of calorimetric sensitivity, never before achieved with a Differential Scanning Calorimeter, DSC. (nauchpribor.com)
  • With the high-pressure Differential Scanning Calorimeter, DSC 204 HP Phoenix®, thermal effects in a sample can be analyzed in the pressure range from vacuum to 15 MPa (150 bar) and at temperatures from -150°C to 600°C, depending on the type of gas. (nauchpribor.com)
  • The DSC 404 F1 Pegasus ® , High-Temperature Differential Scanning Calorimeter, is designed for the exact determination of specific heat of high-performance materials at high temperatures. (nauchpribor.com)
  • Mechanistic pyrolysis kinetics analysis of extractives, holocellulose, and lignin in solid wood over entire heating regime was possible using specialized cone calorimeter test and new mathematical analysis tools. (usda.gov)
  • Typical applications include gas chromatography (GC) makeup gas and carrier gas, ECD, differential scanning calorimeter (DSC), and any other type of analytical instrumentation requiring a small flow of ultra-high purity zero nitrogen. (thefreedictionary.com)
  • UL-94 test, cone calorimeter , microscale combustion calorimeter (MCC), and thermal analysis (TGA). (thefreedictionary.com)
  • STA simultaneously combines differential thermal analysis (DSC and DTA) with thermo-gravimetric analysis (TGA). (edu.au)
  • When samples undergo a complicated set of simultaneous and sequential reactions, as cellulose does on heating, results of thermogravimetric and differential thermal analyses are difficult to interpret. (usda.gov)
  • Application of Differential Thermal Analysis to Mineralogy: Identification and Semi-Quantitative Determination of Minerals. (worldcat.org)
  • Variability in shape, area and temperature of TG, DSC, QMS and FTIR peaks revealed differences in thermal stability and chemical structure of the samples between the FAs and HAs fractions of different origin. (figshare.com)
  • The stability index of lipopeptide MSA31 revealed "halo-alkali and thermal tolerant biosurfactant" which can be used in the food industry. (frontiersin.org)
  • Thermogravimetric analysis showed a thermal stability of the system from 150 degree C up to 500 degree C. the DTA curves indicated that there is no change in phase as a function of temperature . (bvsalud.org)
  • Some of these nanomaterials have been characterized for their structure/bonds using uv-visible, infrared, and Raman spectroscopy, crystallinity through X-ray diffraction and Raman spectroscopy (and HRTEM), thermal stability through thermogravimetric analysis, and morphology through scanning and transmission electron microscopies. (amrita.edu)
  • Differential Scanning Calorimetric Studies of the Thermal Stability of Plasmid DNA Complexed with Cationic Lipids and Polymers Journal of Pharmaceutical Sciences. (jove.com)
  • Glassy carbon offers high purity, corrosion resistance, thermal stability and a structure impermeable to both gases and liquids. (alfa.com)
  • SARS-CoV-2 infection remodels the host protein thermal stability landscape. (embl.de)
  • Meltome atlas-thermal proteome stability across the tree of life. (embl.de)
  • 5.1 DTA + High-Temperature X-Ray Analysis. (worldcat.org)
  • In DTA, the material under study and an inert reference are made to undergo identical thermal cycles, (i.e., same cooling or heating programme) while recording any temperature difference between sample and reference. (wikipedia.org)
  • This differential temperature is then plotted against time, or against temperature (DTA curve, or thermogram). (wikipedia.org)
  • A method for precise determination in thermograms of slight temperature changes by taking the first derivative of the differential thermal analysis curve (thermogram) which plots time versus differential temperature as measured by a differential thermocouple. (thefreedictionary.com)
  • The NETZSCH Photo-DSC 204 F1 Phoenix®, Differential Photocalorimeter, works in the temperature range from -100°C to 200°C. The Differential Photocalorimetry instrument has a gas-tight measuring cell and the purge gas control is regulated by a mass flow controller (MFC). (nauchpribor.com)
  • Bassett CL, Wisniewski ME, Artlip TS, Norelli JL, Renaut J, Farrel RE Jr (2006) Global analysis of genes regulated by low temperature and photoperiod in peach bark. (springer.com)
  • All thermally activated NiTi archwires analyzed presented stage transformation during thermal scanning with final austenitic temperature (Af) ranging from 20.39°C to 45.42°C. Three brands of NiTi archwires presented Af close to the room temperature and, this way, do not present properties of shape memory and pseudoelasticity that are desirable in clinical applications. (scielo.br)
  • Thermal Analysis comprises a group of techniques that measure the physical or chemical properties of a sample as a function of temperature or time whi. (mt.com)
  • structural analysis of powdered samples (4K to room temperature). (dal.ca)
  • Dynamic mechanical analysis, time-temperature superposition, creep and stress relaxation. (utdallas.edu)
  • Thermoanalytical techniques, including differential thermal analysis (DTA) and thermogravimetric analysis (TGA), are considered as a way to determine the temperature history of concrete after fire exposure. (omicsonline.org)
  • Any difference in temperature between the two materials is detected by thermocouples whose signal is proportional to ∆T. To maintain the sample and reference material under similar conditions, both materials are embedded in a block of material with a large thermal mass. (omicsonline.org)
  • In 1982 the RRRL moved from Princeton to Honolulu, and is now actively engaged in research on the pyrolysis of biomass materials, and high temperature solar thermal energy utilization. (springer.com)
  • Whilst the temperature of the reactants may not directly constitute a major hazard, the pressure developed as a result of thermal runaway in a vessel or other item of process equipment can cause catastrophic failure of the equipment. (hse.gov.uk)
  • Thanks to their modular design, the DSC instruments as part of the METTLER TOLEDO Thermal Analysis Premium or Excellence Line are the best choice for manual or automatic operation, from academic research and industrial development to quality assurance and production. (mt.com)
  • Thermal analysis is a well-established analytical method that is widely used in many different fields. (mt.com)
  • Other analytical methods such as differential thermal analysis are discussed. (cdc.gov)
  • The Thermal Desorption Differential Mobility Analyzer (TD-DMA) uses an online, discontinuous principle. (lib4ri.ch)
  • 1. Thermogravimetry and Differential Thermal Analysis. (worldcat.org)
  • The DSC measuring cell consists of a cylindrical high-conductivity silver block with an embedded heating coil for broad thermal symmetry (3D symmetry) in the sample chamber, the cooling ports for liquid nitrogen or compressed air cooling and a cooling ring for connection of the intracooler (also with simultaneous liquid nitrogen cooling). (nauchpribor.com)
  • With the computer simulations, it has been found that in Differential Thermal Analysis (DTA) the overlapped peaks do not satisfy the linear overlapping principle, and the relationship between the overlapped peaks is rather complex that is a function of sample thermal conductivity, specific heat, quantity and latent heats, etc. (akjournals.com)
  • Different samples of some manganite of cobalt , nickel , copper , and zinc were prepared and subjected to thermal analyses and electrical conductivity measurements . (bvsalud.org)
  • We set unprecedented and unparalleled performance standards due to our high thermal conductivity ceramic sensor material with its low thermal mass. (mt.com)
  • Na, NaOH, and Na 2 O as major chemical species were observed from the X-ray diffraction (XRD) analysis of the residues after the DTA experiment. (asme.org)
  • The adsorption of water molecules on clays has been studied using various experimental techniques, including X-ray diffraction thermogravimetric analysis and adsorption isotherms [ 2 - 5 ]. (omicsonline.org)
  • The viability of using both these materials with the SLS process was assessed and the process route and resulting material properties characterised using a variety of techniques including Differential Thermal Analysis (DTA), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). (springer.com)
  • The sylvite liquidus in the binary system KCl-H2O and the liquidus in the ternary system NaCl-KCl-H2O were determined by using isobaric differential thermal analysis (DTA) cooling scans at pressures up to 2 kbars. (usgs.gov)
  • FE-SEM and TEM analysis demonstrated parallel graphitic layers and uniformity of atomic orientation and morphology. (dovepress.com)
  • The presence of organic additive influenced on PP degradability, this fact was assessed by changes in the thermal and morphology properties of the samples after 120 days of natural ageing. (osti.gov)
  • Dried Okra gum was made into powder form and its physical and chemical characteristics such as solubility, pH, moisture content, viscosity, morphology study using SEM, infrared study using FTIR, crystallinity study using XRD, and thermal study using DSC and TGA were carried out. (hindawi.com)
  • These synthesized MoO 3 and their composite samples are characterized for their structure, morphology, bonding and thermal behaviour by XRD, SEM, IR and DSC techniques, respectively. (ias.ac.in)
  • The gas-tight construction and integrated mass flow controllers for the purge and protective gases allow coupling to an FTIR or MS for gas analysis. (nauchpribor.com)
  • STA 6000 can be coupled to FTIR via TL8000 FTIR EGA system for TG-IR analysis for identifying out-gassing products. (edu.au)
  • Fourier Transform Infrared analysis (FTIR) was used to confirm the … chemical structure with different type composite scaffolds. (iospress.com)
  • Thermal analysis is a collection of methods used to qualitative and quantitative information on the effect of heat on various types of materials, including chemical compounds, polymers (rubber, plastics and composites), ceramics, alloys, bio-macromolecules, food and medicine. (dovepress.com)
  • The Ozawa analysis on the DTA scan data gave the Avrami parameters at 2.7 and 2.4, respectively, for the as-spun and fully-nucleated CA fibres, which indicates high tendency of bulk crystallization mode. (elsevier.com)
  • Sung, YM & Sung, JH 1998, ' Crystallization behaviour of calcium aluminate glass fibres: Part I Differential thermal analysis study ', Journal of Materials Science , vol. 33, no. 19, pp. 4733-4737. (elsevier.com)
  • The effect of sample preparation procedures on the glass transition and crystallization of amorphous Se has been studied by differential thermal analysis. (springer.com)
  • Differences in heat flow arise when a sample absorbs or releases heat due to thermal effects such as melting, crystallization, chemical reactions, polymorphic transitions, vaporization and many other processes. (mt.com)
  • This system offers possibility of small area analysis and angle-resolved photoelectron spectroscopy. (tudelft.nl)
  • X-ray Photoelectron Spectroscopy (XPS) also referred to as Electron Spectroscopy for chemical analysis (ESCA) was used to characterize the surfaces of plasma-chemical treated wood in air by dielectric barrier discharge (DBD). (scribd.com)
  • Bhadeshia H.K.D.H. "Thermal analyses techniques. (wikipedia.org)
  • This book provides detailed information on the background, basic principles, and components of techniques used for the analysis of pharmaceuticals and biopharmaceuticals. (springer.com)
  • The following chapters examine the principles, measurement and analysis of spectra, and experimental techniques of light scattering, IR, and NMR spectroscopic methods. (google.com.au)
  • In the webinar titled 'Thermal Analysis of Tires', we describe a number of techniques and methods that can be used to characterize the physical properties of tire tread compounds. (mt.com)
  • These are investigated using various thermal analysis techniques. (mt.com)
  • During the course of the webinar, I would like to describe a number of interesting application examples that demonstrate the use of thermal analysis techniques in the tire industry. (mt.com)
  • Finally, I want to summarize the different thermal analysis techniques and their applications. (mt.com)
  • The solid-state unzipping of CNTs leading to graphene formation was confirmed using spectroscopic, thermal and electron microscopy techniques. (rice.edu)
  • Molecular biology comprises a wide variety of techniques for the analysis of nucleic acid and protein. (google.ca)
  • These techniques include nucleic acid hybridization analysis, restriction enzyme analysis, genetic sequence analysis, and the separation and purification of nucleic acids and proteins (See, e.g. (google.ca)
  • He published on a variety of clay mineralogical topics, including the mineralogy and chemistry of the smectitic minerals, iron and aluminium oxides in soils, the genesis of soil clays, as well as problems related to clay mineral classification and nomenclature.in the field of thermal analysis and clay mineralogy. (wikipedia.org)
  • The Perkin Elmer Optima 4100DV ICP-OES system can determine trace elemental analysis (ppm to ppb) of around 60 elements. (wcu.edu)
  • Thermogravimetric analysis/differential thermal analysis and elemental analysis confirm the presence of carbonaceous matter. (beilstein-journals.org)
  • This book is divided into seven chapters that cover the ultracentrifugal analysis, light scattering, infrared (IR) methods, nuclear magnetic resonance (NMR) spectroscopy, and differential thermal analysis of protein properties. (google.com.au)
  • and means for simultaneously measuring dielectric and thermal properties of a material in the sample cell, said thermal properties including at least heat capacity, and said means for measuring dielectric properties including at least one of measuring dielectric constant and dielectric loss of said material. (google.com)
  • Offers subscribers a wealth of information on man-machine interface methods, including LED and LCD displays, flat panels, touch screens, panel meters, imaging workstations and analysis, and computer workstations used to monitor manufacturing processes. (globalspec.com)
  • Thermal motions of the E. coli glucose-galactose binding protein studied using well-sampled, semi-atomistic simulations. (harvard.edu)
  • Scanning Electron Microscope, SEM (JEOL JSM 6500 F) equipped with a field emission gun and provided with a large specimen analysis chamber. (tudelft.nl)
  • Synthesis, infrared spectra, thermal analyses and structural studies of half-sandwich Fe(III)/Fe(II) complex containing pyridine-2,6-dicarboxylate and 1,10-phenanthroline. (harvard.edu)
  • More particularly, the molecular biological type analyses include various nucleic acid hybridizations reactions and associated biopolymer synthesis. (google.ca)
  • Lastly, it was found that the use of nano-TiO 2 as reactant powder accelerates the synthesis process, decreases the formation of transient phases, and helps to obtain phase-pure products using a lower thermal budget. (osti.gov)
  • Lastly, it was found that the use of nano-TiO2 as reactant powder accelerates the synthesis process, decreases the formation of transient phases, and helps to obtain phase-pure products using a lower thermal budget. (osti.gov)
  • in Differential Thermal Analysis (R. C. Mackenzie, ed. (ximicat.com)
  • The Chemical and Trace Analysis Lab housed in the Department of Chemistry and Physics has a wide variety of scientific instrumentation available for our students and faculty. (wcu.edu)
  • Although many facilities and research groups may have thier own equipment, the 20+ pieces of instrumentation in the analysis lab are available to WCU affiliates with no time-of-use charges thanks to funds from the student technology fee. (wcu.edu)
  • A quantum jump in sensor technology enables us to offer the highest sensitivity sensors available in DSC instrumentation and allows you to detect the weakest thermal effects. (mt.com)
  • This U.S. industry comprises establishments primarily engaged in manufacturing instruments and instrumentation systems for laboratory analysis of the chemical or physical composition or concentration of samples of solid, fluid, gaseous, or composite material. (naics.com)
  • The boiling point was determined according to the guideline 'EC-A 2'and the Differential thermal analysis (DTA) showed no boiling point. (europa.eu)
  • The TGA/DTA analysis of clay is an important tool in solving the role of water in reactions involving clays [ 1 ]. (omicsonline.org)
  • He also edited The Differential Thermal Investigation of Clays and the two volume Differential thermal analysis He played an active part in both national and international organisations. (wikipedia.org)
  • The differential thermal investigation of clays. (wikipedia.org)
  • Speil, Sidney, and others (1945) Differential thermal analysis, its application to clays and other aluminous minerals: U. S. Bur. (ku.edu)
  • North American Thermal Analysis Society], 2011: [12] p. (usda.gov)
  • During his career he received a number of prizes and was elected as a Fellow of the Royal Society of Edinburgh (1961) and the Royal Society of Chemistry and North American Thermal Analysis Society (1985), he was also appointed Distinguished Member of UK Clay Minerals Group (1983) and First Honorary Member of International Clay Technology Association (ICTA) (1988). (wikipedia.org)
  • Ashworth EN, Abeles FB (1984) Freezing behavior of water in small pores and the possible role in the freezing of plant tissues. (springer.com)
  • The investigation of tread and body samples, by thermal analysis allows the prediction of tire behavior and is important for compositional analysis and quality control. (mt.com)
  • I would like to begin with some comments about important properties of tires such as rolling resistance, wet grip behavior, and abrasion that can be investigated by thermal analysis and in particular by dynamic mechanical analysis. (mt.com)
  • MSEN 5370 Ceramics and Metals (3 semester hours) Emphasis on structure-property relationships: chemical bonding, crystal structures, crystal chemistry, electrical properties, thermal behavior, defect chemistry. (utdallas.edu)
  • Thermal tests for the determination of endotherms, exotherms, and weight loss on heating or cooling are performed for client samples. (edu.sa)
  • Electron Probe X-ray Micro Analyzer, EPMA (fully automated JEOL JXA 8900R WD/ED combined microanalyzer) equipped with five wavelength-dispersive (WD) spectrometers and one energy-dispersive (ED) system, which allow quantitative composition analysis of the elements in the range of 4 Be to 92 U. For the analysis of light elements (i.e. (tudelft.nl)
  • Several years ago the Laplace transform solutions of Luikov's differential equations were presented for one-dimensional heat and moisture transfer in porous hydroscopic orthotropic materials for the boundary condition of a gradual heat pulse applied to both surfaces of a flat slab. (usda.gov)
  • In this Webinar, we will show how thermal analysis is applied to investigate tire materials. (mt.com)
  • While such materials are possessed of useful properties, it has been found desirable to have materials which will be characterized by even more enhanced thermal and other physical properties and it is a primary object of this invention to provide such materials. (google.es)
  • thermal analysis lab offer expertise in measuring thermal properties of materials. (edu.sa)
  • They join irregularly shaped surfaces more easily than mechanical or thermal fastening, add little weight, create virtually no change in part dimensions or geometry, and quickly and easily bond dissimilar substrates and heat-sensitive materials. (photonics.com)
  • SGH has in-house laboratory facilities that enable our engineers to conduct testing and analysis on materials for condition assessment, failure analysis, and new system design. (sgh.com)
  • Surface and bulk analysis of materials composition is critical to understanding material properties. (sgh.com)
  • The as synthesized 𝛾-Fe 2 O 3 is characterized employing thermal, XRD, SEM, magnetic hysteresis, and density measurements. (ias.ac.in)
  • Chemical and Thermal Measurements. (sgh.com)
  • Comparative thermogravimetric analyses of co-combustion of textile dyeing sludge and sugarcane. (deepdyve.com)
  • Kerr, P.F., Kulp, J.L., and Hamilton, P.K. (1949) Differential thermal analyses of reference clay mineral specimens: Am. Petroleum Inst. (ku.edu)
  • Thermal analysis of powder, liquids, or solids. (uwm.edu)
  • The emphasis is on the polymer thermal insulation coating and the interfaces between the coating and steel pipe and b. (sintef.no)
  • Class II asbestos work means activities involving the removal of ACM which is not thermal system insulation or surfacing material . (cornell.edu)
  • This invention relates to devices and systems for performing multi-step molecular biological type diagnostic analyses in multiplex formats. (google.ca)
  • With increase in the percentage grafting a significant physico-chemico-thermal resistance were observed. (omicsonline.org)
  • Through our partnership with the WCU Corporation for Entrepreneurship and Innovation , students and faculty in the Chemistry and Forensic Science Programs can provide routine analysis and method development services to outside organizations. (wcu.edu)
  • A new method for size-resolved chemical analysis of nucleation mode aerosol particles (size range from ~ 10 to ~ 30 nm) is presented. (lib4ri.ch)
  • A computational method for detection of ligand-binding proteins from dose range thermal proteome profiles. (embl.de)
  • The statistical analysis showed that the parameters calculated from QMS (areas of m/z = 16, 17, 18, 44), DSC (Max DSC ) and TG (ΔM) at R1, R2 and R3 correlated with selected chemical properties of the samples, such as N, O and COOH content as well as E2/E6 and E2/E4 indexes. (figshare.com)
  • Modify properties of metal alloys, using thermal and mechanical treatments. (onetonline.org)
  • Thermal analysis properties testing. (edu.sa)

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