Shape particle size. Medical search. Frequent questions

The possibility that the steric inversion can become an experimental tool for the measurement of particle densities and shapes, along with their distributions, is discussed. (rsc.org)
The technique is based on Fourier transformation to extract spatiotemporal fields of internal particle size and shape orientation distributions during flow, in addition to complementary measurements of velocity fields through image correlation. (edu.au)
The ideas developed in this paper are directly applicable to many other open questions in granular and soft matter systems, such as the evolution of size and shape distributions in foams and biological materials. (edu.au)
Laser diffraction measures particle size distributions by concentration either as a percentage or by mass of a dispersed particulate sample. (wikipedia.org)
In addition, we have an Electrical Low Pressure Impactor (ELPI) for the measurement of particle number concentration in 10 different size distributions. (sintef.no)
Trends in distributions of Si particle size and nearest neighbor distances with each pass are presented. (unf.edu)
Grain size distributions can be obtained from sieving and hydrometer testing or by laser diffraction method, both techniques being associated with various dispersive agents. (onepetro.org)
The PSA300 image analysis system reports the particle size and shape distributions of nutraceuticals from 0.5 to 1000µm using an automated optical microscope. (horiba.com)

The Camsizer P4 is a compact laboratory instrument for simultaneous measurement of particle size distribution, particle shape and additional parameters of powders and granules. (pm-review.com)
The ANALYSETTE 28 ImageSizer is in combination with the corresponding wet dispersion unit ideal for measurement of particle shape and size of suspensions and emulsions. (labbulletin.com)

Physical and chemical properties of nanoparticles and nanocrystalline materials are strongly influenced by their particle size, shape and structural strain, including rheology, surface area, cation exchange capacity, solubility, reflectivity, etc. (rigaku.com)
The submicron iron particles in nanometer size are called iron nanoparticles. (actionext.com)
Here, we systematically investigate the atomic structure of tungsten oxide nanoparticles as a function of the nanoparticle size and observe drastic changes when the particles are smaller than 5 nm, where the particles are amorphous. (lu.se)
The tungsten oxide nanoparticles are synthesized by thermal decomposition of ammonium metatungstate hydrate in oleylamine and by varying the ammonium metatungstate hydrate concentration, the nanoparticle size, shape and structure can be controlled. (lu.se)
Zinc oxide nanoparticles (Pishgaman Nano-Material Co., Mashhad, Iran) had an average particle size of 20 nm with a crystalline structure. (bvsalud.org)
For example, 15-nm silver suitability, particularly when it comes to particle solution nanoparticles appear ~4000 times more potent than micron-sized dynamics and dosimetry. (cdc.gov)
The definition of dose for nanoparticles in an in vitro system is particles in vitro. (cdc.gov)
Titanium dioxide (TiO2) particles, including nanoparticles with diameters smaller than 100 nm, are used extensively in consumer products. (cdc.gov)
Although fine particles (diameters between 0.1-3 m) of TiO2 are known to be biocompatible, some of the research conducted on TiO2 nanoparticles (diameters smaller than 100 nm) has suggested potential toxicological impacts because they possess physicochemical properties different from the bulk. (cdc.gov)
Examples are dust in your room air, cloud droplets, exhaust particles from an engine, sea-salt particles from wave foam as well as produced nanoparticles. (lu.se)
The researchers collect nanoparticles from the air, identify their chemical components and their shape, and count how many they were. (lu.se)
The nanoparticles which had been produced in a closed system had a spherical shape and a size of 30 nanometres. (lu.se)
The nanoparticles collected from the air consisted of the same chemical substances as those in the closed system but had grown into large clumps consisting of thousands of particles held poorly together. (lu.se)

The secondary electrons produced by the sample are used routinely to characterize Particle Morphology . (upstate.edu)
Particle morphology is an important descriptor in IPA. (upstate.edu)
2022. Irregular particle morphology and membrane rupture facilitate ion gradients in the lumen of phagosomes. . (ncbs.res.in)
isolated at 20°C, which demonstrated typical trophozoite and cyst morphology, contained large numbers of particles either within vacuoles or within the cytoplasm. (cdc.gov)
Root morphology and exudate availability are shaped by particle size and chemistry in Brachypodium distachyon . (bvsalud.org)
Aerosol particles are not necessarily spherical, but can have a complex shape, surface structure and morphology (see image below). (lu.se)

Crystallite size is performed by measuring the broadening of a particular X-ray diffraction (XRD) peak in a diffraction pattern associated with a particular planar reflection from within the crystal unit cell. (rigaku.com)
Engineered to withstand the rigors of the process environment, Insitec Dry particle size analyzers use laser diffraction technology to measure particles in the size range 0.1 to 2500 µm. (dksh.com)
Vision based particle sizing units obtain two dimensional images that are analyzed by computer software to obtain particle size measurement, images can be retained and replayed for additional analysis Laser diffraction uses the principle that the angle of diffraction increases as particle size decreases, this method is used for measuring sizes between 0.1 and 3,000μm. (wikipedia.org)
The LA-960 laser diffraction particle size analyzer is the best choice when measuring many materials occupying different size ranges and requiring fast, flexible analyses. (horiba.com)
The size of liposomes is measured using dynamic light scattering and laser diffraction. (horiba.com)
Laser diffraction based particle size analyzers bring the same benefits to nutraceutical measurement that make the technique popular among the pharmaceutical industry: fast analysis time, excellent precision, sample handling systems for every application, and a wide measurement size range. (horiba.com)

Virus-like particles (VLPs) enable the construction of promising platforms in the field of vaccine development. (nature.com)
Over one hundred vaccines using varied approaches including protein subunit, viral vector, RNA, DNA, inactivated virus, attenuated virus, and virus like particles (VLPs) platforms are in clinical trials. (nature.com)
The density of virus-like particles within acanthamoebae cells was extremely high ( Figure , panel A). The advantage of in situ observation of amebae on the surface on which they were cultivated is that the cell is not disturbed. (cdc.gov)

It has been observed under certain flow conditions that there is a measured increase in fine particle concentration at the center of the circulating fluidized bed riser just below the exit to the cyclone. (osti.gov)
The Canty PHARMAFLOW™ has been engineered to analyze small volume samples for particle size, shape and concentration. (jmcanty.com)
Measuring exosome stability with Nanoparticle Tracking Analysis' describes the use of this technology for size and concentration measurements of exosomes stored at 4oC and at room temperature for up to five days. (pharmaceutical-business-review.com)
The ability of the NanoSight range of instruments to visualise, size and determine the concentration of particles below 300nm has resulted in it becoming a highly valuable technology in the field of extracellular vesicles. (pharmaceutical-business-review.com)
This particle-by-particle methodology produces high resolution results for particle size distribution and concentration, while visual validation provides users with additional confidence in their data. (pharmaceutical-business-review.com)
Both particle size and concentration are measured, while a fluorescence mode provides differentiation of labelled or naturally fluorescing particles. (pharmaceutical-business-review.com)
Depending on particle size, composition, shape and concentration, particles can cause adverse health effects in workers. (cdc.gov)
2005), delivery are accounted for, trends and magnitude of the cellular dose little attention has been devoted to a critical examination of their as a function of particle size and density differ significantly from those implied by ``concentration'' doses. (cdc.gov)

Anton Paar offers you instrumentation for all of them and more - it's the broadest particle characterization portfolio available from one single provider worldwide. (anton-paar.com)
Click on a parameter to see what Anton Paar offers you in a particular field of particle characterization. (anton-paar.com)
We can readily observe the importance of particle characterization to the nutraceutical industry as this information impacts research and development concerns as well as quality control. (horiba.com)

Wet dispersion is particularly suitable for fine particles, poorly flowing, fine-agglomerating or sticky materials, which do not react in water or other liquids. (labbulletin.com)

One alternative is to shift d i to one end of the particle diameter range through intentional variations in operating parameters. (rsc.org)
The extended software functionalities now include an image library containing pictures and contours of each particle and its respective shape and size readings and a 3-dimensional diagram (3D Cloud scatterplot) of the analysis parameters. (pm-review.com)
The optical process of Dynamic Image Analysis provides results for a wide measuring range, delivers multiple shape parameters and evaluation possibilities for particle size. (labbulletin.com)
The model agrees with numerical predictions and is validated experimentally with colloidal aggregates in the 0.3-6 μm size range, which serve as an inhomogeneous model system that can be characterized enough to work without any free parameters. (springer.com)

Measurement of rows of particles, assuming tight packing, gave an average particle size of 620 nm. (cdc.gov)

The inversion phenomenon can complicate particle size analysis for particle populations with diameters that span the inversion diameter, d i (≈ 1 µm). (rsc.org)
We found strong depolarisation values of up to 0.4 in case of small growing and sublimating ice particles with volume equivalent diameters of only a few micrometers. (copernicus.org)

Rock particle 16-64 mm in diameter (from Hiscock, 1990, based on Wentworth, 1922. (marlin.ac.uk)
The resulting pores have the same diameter as the particles, they note, and have a hexagonal cross section matching the zeolite lattice. (acs.org)
Suspended particle sizes may range from a few nanometers to hundreds of micrometers in diameter and particles can be manufactured or naturally occurring. (cdc.gov)
For both fibrous and non-fibrous particles, the deposition pattern is dictated largely by the particles' aerodynamic diameter. (cdc.gov)
The aerodynamic diameter, another panelist noted, is equivalent to the geometric diameter of a unit density sphere that has the same terminal settling velocity in still air as the particle in question. (cdc.gov)
The discussion leader then noted that researchers have long established that airborne particles with aerodynamic diameter larger than 10 µm typically do not pass the larynx, and the particles that enter the lungs deposit by one of three mechanisms impaction, sedimentation, or diffusion (Brownian motion). (cdc.gov)

Particles may be irregular in appearance as a result of natural or anthropogenic abrading processes. (upstate.edu)

Small non-spherical particles settling in a quiescent fluid tend to orient so that their broad side faces down, because this is a stable fixed point of their angular dynamics at small particle Reynolds number. (aps.org)
In coal burning power plants following the combustion phase the impurities in the coal almost invariably emerge as completely spherical particles. (upstate.edu)
Furthermore, for enhancing the ability to adapt their structure, colloidal molecules can be endowed with controlled conformational flexibility by assembling spherical particles onto cubes functionalized with DNA linkers. (lu.se)

Of sediment particles - the main characteristic for classifying rock-derived sediments. (marlin.ac.uk)
Percentage (by weight) of sediment particles of each grain-size fraction. (marlin.ac.uk)
Regarding the sediment size, "Big" pebbles are less dynamic if compared to finer classes, and they move preferentially down the swash zone towards the step or do not move up-slope if already at the step. (ulster.ac.uk)

These nanometer particles are high in purity, have a good crystal structure and can be controlled easily. (actionext.com)
Various techniques are now capable of measuring particle size in the nanometer, micrometer, and millimeter size ranges. (horiba.com)
Aerosol particles are everywhere, in size from 1 nanometer up to some tenths of a mm. (lu.se)

This overdamped theory neglects the effect of particle inertia. (aps.org)

The ANALYSETTE 28 ImageSizer is the ideal Particle Sizer for all applications that require accurate and reproducible measuring results for both particle shape and size of powders and bulk solids as well as of suspensions and emulsions. (labbulletin.com)

Rigaku NANOPIX mini is the world's first benchtop small angle X-ray scattering (SAXS) system that is engineered to deliver automatic nanoparticle size distribution analysis for both quality control (QC) and research and development (R&D) applications. (rigaku.com)
Nanoparticle size, size distribution, and particle shape are the key pieces of information obtained from SAXS. (rigaku.com)
Modelling runs with the T-matrix method showed that the measured depolarisation ratios can be accurately reproduced assuming spheroidal and cylindrical particles with a size distribution that has been constrained by IR extinction spectroscopy. (copernicus.org)
There are several methods used for detecting and measuring particle size or size distribution - light blocking (obscuration), light scattering, Coulter principle and direct imaging. (wikipedia.org)
Canty InFlow technology images the fluid to capture color and particle size, shape and distribution if desired. (jmcanty.com)
On the Size, Shape and Spatial Distribution of Si Particles in A356 Ca" by Nelson Netto, Murat Tiryakioğlu et al. (unf.edu)
Aspect ratio of particles remains constant throughout multiple FSP passes despite changes in spatial and particle size distribution. (unf.edu)
Essentially, dust's radiative properties rely on the size distribution and chemical composition of the grains. (springer.com)
Difficulties in determining the organic matter content, the grain size distribution and the mineralogy of these sediments by the standard methods routinely used by soil mechanics laboratories have been encountered and reported 1 . (onepetro.org)
The paper focuses on the determination of organic matter content, grain size distribution and mineralogical determination. (onepetro.org)
The mechanical properties of a colloidal dispersion are essentially controlled by the particle size and shape distribution, and by the interparticle interactions (electrostatic interactions, bridging, friction, etc. (onepetro.org)
It can also be used to observe protein structure in dynamics and solution, and to determine the averaged particle size, shape, and distribution, as well as surface-to-volume ratio. (lu.se)

media density and viscosity and particle size, shape, charge and element of all tiered approaches for toxicity assessment of density, for example. (cdc.gov)
In contrast to soluble chemicals, cadmium oxide particles on a cm2/ml media basis, but are only ~50 particles can settle, diffuse, and aggregate differentially accord- times more potent when differences in delivery to adherent cells are ing to their size, density, and surface physicochemistry. (cdc.gov)

Filtered air can be completely free from particles, but dusty environments can have hundreds of thousands of particles per cubic centimetre. (lu.se)

In this video, Zhibin Guo, application engineer at Bettersize Instruments Ltd presents the next generation of particle sizing, with Bettersize's powerful 2-In-1 particle size and shape analyzer, Bettersizer S3 Plus. (selectscience.net)
A particle size analyzer can only be as good as its dispersion capabilities. (labbulletin.com)
The SZ-100 nano particle analyzer provides size information for nano scale suspensions and emulsions through a simple, robust user interface. (horiba.com)

The researchers subsequently found that the particles had sintered into larger particles and burrowed into the zeolite surface. (acs.org)
9,10] In this size range, the most thermodynamically stable crystal structure of TiO2 is anatase in contrast to the rutile phase for larger particles. (cdc.gov)

The Camsizer P4 features include an extended measurement range from 20 µm to 30 mm, faster cameras with higher resolution as well as a particle library for direct storage of individual particle images. (pm-review.com)

Particle Size and Shape Analysis, Zeta Potential and NIR-Chemical Imaging. (pharmaceutical-business-review.com)
Quantitative particle size, particle shape, and zeta potential analysis provides information that has either a direct effect or correlation to issues such as bioavailability, solubility, formulation stability, and quality control. (horiba.com)
Nutraceutical researchers working to improve the bioavailability, biocompatibility, and stability of various formulations measure particle size, particle shape, and zeta potential. (horiba.com)

Hence, a better understanding of the role of particle characteristics is necessary. (ulster.ac.uk)
These characteristics include the chemical nature and relative abundance of the constituting mineral and organic phases, which are indicative of generic size, shape, surface reactivity of the solid phases and of the nature of the interparticle interactions. (onepetro.org)

C hemists in japan who have been exploring the structural changes that catalysts undergo during operation have made a surprising observation: Platinum particles deposited on a porous zeolite support can dig out new, well-defined pores in the zeolite surface. (acs.org)
Combustion processes which generate carbon(aceous) particles (such as oil burning power plants) produce spherules which are well rounded and have a distinctive porous texture. (upstate.edu)

This requires reproducible results, as with the FRITSCH Particle Sizers. (labbulletin.com)
Test the FRITSCH Particle Sizers! (labbulletin.com)
Up-dated information on FRITSCH high-tech particle technology - from Dynamic Image Analysis to Static Light Scattering at the FRITSCH website. (labbulletin.com)
FRITSCH is one of the internationally leading manufacturers of application-oriented laboratory instruments for sample preparation and particle sizing. (labmate-online.com)

An aerosol may be defined as a suspension of particles or droplets in the air and includes airborne dusts, mists, fumes or smoke. (cdc.gov)
The method is expected to provide for a more accurate quantification of airborne TiO2 particles in the workplace environment. (cdc.gov)
Author Manuscript from The American Conference of Governmental Industrial Hygienists (ACGIH) for airborne TiO2 particles are 10 mg/m3 TiO2 for total dust and, using particles not otherwise specified (PNOS) guidelines, 5 mg/m3 for respirable particles. (cdc.gov)

Among them are examples of identifying unwanted contaminants, comparing different formulations for particle size and bioavailability, and increasing solubility of a material via particle size reduction and the resultant increase in specific surface area. (horiba.com)

Aerosol is particles in a gas volume. (lu.se)
Aerosol particles are used within nanotechnology (for instance solar cells), in health care (for instance the Turbuhaler®), but also have adverse health effects during deposition in our lungs and affect climate through the reflection and absorption of solar light and through cloud formation. (lu.se)

The purpose of this paper is to develop a generalized treatment for the retention (steric) inversion phenomenon in field-flow fractionation (FFF) and to examine the implications of this inversion on particle analysis by FFF. (rsc.org)
Malvern Insitec systems deliver the online continuous particle size analysis needed for efficient, cost-effective monitoring and control of industrial processes. (dksh.com)
Probe for online particle size and shape measurement by dynamic image analysis. (ps-prozesstechnik.com)
Retsch Technology GmbH, Haan, Germany, has launched the fourth generation of its Camsizer system for particle size and particle shape analysis. (pm-review.com)
New particle shape descriptors allow for analysis of the roundness of particles. (pm-review.com)
A new analysis was developed to predict the axial voidage along the length of influence in the exit region with T-shape geometry. (osti.gov)
It offers microscopic, non-destructive viewing and provides particle size analysis with two dimensional results when used in conjunction with the CantyVisionClient™ Software. (jmcanty.com)
On the other hand for example Dynamic Image Analysis, for analysis of particle shape and size in an extra wide measuring range of 20 µm - 20 mm. (labbulletin.com)
Two models for especially efficient particle size analysis - in production and quality control as well as in research and development or for controlling manufacturing processes. (labbulletin.com)
The ANALYSETTE 28 ImageSizer is the ideal Particle Sizer for fast analysis of particle size and shape of dry, free-flowing materials. (labbulletin.com)
Via the optical analysis of the particle shape and particle size, you can identify damaged particles, contaminates, agglomerates or oversized and undersized particles accurately and fast and view them completely uncomplicated in single images. (labbulletin.com)
Instruments for particle sizing according to static laser scattering, dynamic image analysis and sieving. (labmate-online.com)

The influence of particle size on the formation of the FeO subdomains, as well as the emergence of exchange bias were investigated and the results point to a decrease in the exchange field as the particle size decreases, with virtually no exchange bias present for the 10 nm system. (lu.se)

We also discuss the case of absorbing particles and report the experimental results for water suspensions of black carbon for both the forward and 90° scattering properties. (springer.com)

X-ray maps were used to elucidate Si particles for quantitative image processing. (unf.edu)

A larger penetration depth, larger normal load, and smaller sliding speed lead to a smaller aspect ratio of the particle. (nist.gov)
This thesis characterizes magnetic nanoscale systems with increasing size and aspect ratio using synchrotron radiation-based spectroscopy and microscopy techniques, combined with conventional magnetometry. (lu.se)

The shape and size of plant-derived VLPs are similar to native SARS-CoV-2 VLPs without spike. (nature.com)

Inhaled particle deposition sites must be identified to effectively treat human airway diseases. (epa.gov)

I will show that in this case the anisotropic shape of the central particle is essential for constraining the lateral motion of the particles above a critical size ratio, and that temperature can be used to lift the confinement of the spheres to the cube facets on demand. (lu.se)

The selected particle is coloured according to red for carbon and green for sulphur. (lu.se)

Whether in the field of production and quality control, research, development or the analytical laboratory, particle measurement is essential in many areas. (labbulletin.com)
Also included in our arsenal of analytical equipment is the possibility to measure both particle and gaseous emissions. (sintef.no)

Abstract: Colloidal molecules with anisotropic shapes and interactions are powerful model systems for deciphering the behavior of real molecules and building units for creating materials with designed properties. (lu.se)

Light obscuration by particles works on the principle where the presence of particles blocks some of the light from the photodetector, typically through either absorbance or light scattering. (wikipedia.org)
It is typically used for cellular particles. (wikipedia.org)
The light blocking optical particle counter method is typically useful for detecting and sizing particles greater than 1 micrometre in size and is based upon the amount of light a particle blocks when passing through the detection area of the particle counter. (wikipedia.org)
High temperature urban/industrial combustion processes typically produce waste particles which are spherical in form. (upstate.edu)
This mucus clearance mechanism efficiently removes particles that deposited on the conductive airways, typically within about 1 day following exposure. (cdc.gov)

The ELPI can also be operated gravimetrically, and collected particles can be analyzed with respect to e.g. elemental composition using SEM-EDX. (sintef.no)
The importance of a refined description of the particle composition and structure, going beyond mean-field approximations, is generally recognized. (springer.com)
This is because particle shape is frequently indicative of composition and/or origin. (upstate.edu)

We applied surface texturing techniques to generate UHMWPE particles and air pouch animal tests to study the biological responses induced by UHMWPE particles.The study describes a procedure for generating narrowly distributed UHMWPE particles with controlled size and shape through surface texturing by microfabrication. (nist.gov)
With this technique, we have been able to generate UHMWPE wear particles with different size and shape within phagocytosable and non-phagocytosbale ranges for biological response studies.A mathematical model to predict the dimensions of generated UHMWPE particles has been developed. (nist.gov)
Mainly the silver particles were shown to affect the stem cells that generate neurons in the brain and retina. (lu.se)
In this talk, I will uncover how cubes and spheres can be exploited to generate distinct colloidal molecules over a wide variety of size ratios with desired valence and coordination. (lu.se)

The model can be tightly compared to measurements with single particle extinction and scattering and spectrophotometry and suggests a simple behavior for 90° scattering from fractal aggregates as a function of extinction, which is also confirmed experimentally and numerically. (springer.com)

Insitec systems measure particles in the size range 0.1 micron to 2.5 mm. (dksh.com)
Sizing down to 0.7 micron is possible with the high magnification optics and high intensity light source. (jmcanty.com)

I want to get the latest chemistry news from C&EN in my inbox every week. (acs.org)
and air samples for analyses of particle shape, chemistry, and size. (cdc.gov)

The extracellular, spherical virions can vary in size and shape, and the black dots inside the particles are actually cellular ribosomes. (cdc.gov)
We demand to characterize the hazard potential of the considerable develop these ideas by introducing the concept of cellular dose number of nanomaterials that have been or will be produced is in vitro as an important dose metric and by integrating aspects of material science, solution physics, and kinetics to present the 1 factors and processes affecting the cellular dose for particles. (cdc.gov)

However, employment of the condensation nuclei counter (CNC) technique would allow a higher detection sensitivity in particle sizes down to nanometre range. (wikipedia.org)
Tire shreds normally range in size from 305 mm (12 in) to 76 mm (3 in), while tire chips are usually sized from a maximum of 76 mm (3 in) down to a minimum of 12 mm (1/2 in). (dot.gov)
Tire shreds have a wide range of sizes, from 76 mm (3 in) up to 305 mm (12 in), which is ordinarily the largest size recommended. (dot.gov)
Chip sizes normally range from 12 mm (1/2 in) up to 76 mm (3 in). (dot.gov)
The system offers zoom and focus ability, variable lighting, and multiple objective lens packages to cover a range of sizes. (jmcanty.com)
With the completely revised ANALYSETTE 22 NeXT you choose according to your requirements: The ANALYSETTE 22 NeXT Micro with a measuring range of 0.5 - 1500 μm for all typical measurement tasks or the high-end instrument ANALYSETTE 22 NeXT Nano with an extra wide measuring range of 0.01 - 3800 μm for maximum precision and sensitivity for smallest particles with an additional detector system. (labbulletin.com)

Experimental results show that the cutting-edge length of the surface features is proportional to the particle length. (nist.gov)

In soils and sediments, the individual mineral particles are generally assembled within aggregates of various size and tensile strength, according to the nature and surface properties of the particles, as well as the nature of the interparticle phase acting as a linking agent, such as organic matter, amorphous phases or ions. (onepetro.org)

The influence of abrupt exit (T-shaped) configuration on the riser axial pressure profile in a large-scale circulating fluidized bed (CFB) is examined. (osti.gov)
The influence of the internal structure of inhomogeneous particles on their radiative properties is an open issue repeatedly questioned in many fields of science and technology. (springer.com)

After 100 hours, the team examined the zeolite crystals under an electron microscope and saw that the platinum particles had vanished. (acs.org)
This type of information can be readily obtained by examining the particles in the scanning electron microscope (SEM). (upstate.edu)
Transmission electron microscopic image of three Lassa virus particles. (cdc.gov)
Electron microscopy is the process of greatly magnifying tiny particles in order to see and analyse them. (lu.se)

In view of our results, the high depolarisation ratios observed by the spaceborne lidar CALIOP in the tropical upper troposphere might be a hint for the presence of small (sublimating) ice particles in the outflows of deep convective systems. (copernicus.org)
The displacements of "Medium" and "Small" sized pebbles show a statistical dissimilarity compared to the "Big" ones. (ulster.ac.uk)
Therefore we consider here how particle inertia affects the orientation of small crystals settling in turbulent air. (aps.org)
We find that it can significantly increase the orientation variance, even when the Stokes number St (a dimensionless measure of particle inertia) is quite small. (aps.org)
and particles small enough to enter the deepest regions of the lung (respirable-size). (cdc.gov)
This is due to large contributions of the surface energy to the total energy for small particles. (cdc.gov)

Engineered nanomaterials (ENMs) are materials intentionally produced to have particle sizes between 1 and 100 nanometers in at least one dimension. (cdc.gov)

We teach and research on the topic of aerosols: how are the particles structured, what is the interaction with the gas-phase, what physicochemical properties do they have, and what effects do they have on nature and our health? (lu.se)

Macrophage phagocytosis of wear particles induces human biological/physiological responses which eventually lead to bone resorption and Osteolysis. (nist.gov)
The clearance mechanisms for particles that deposit in the respiratory bronchioles, alveolar ducts, and alveolar sacs operate on a much longer time scale (see discussion on 'phagocytosis' in Section 2.2 ). (cdc.gov)

The textured surface is used to rub against the polymer pins to produce wear particles in water. (nist.gov)
The surface texture produces narrowly distributed elongated particles or equiaxed particles by design. (nist.gov)
The models can be used to design the dimensions of the surface textures and the operating conditions of the wear tests for generation of the particle population with specified size and shape.Murine air pouch animal tests have been used to test the biological responses induced by UHMWPE particles. (nist.gov)
Platinum particles are visible on a zeolite surface before sintering (top left), but after treatment the particles disappear and pores form (bottom left). (acs.org)
Basic information on the nature and origin of particulate material can often be gathered from the size, shape and/or surface form of the individual particles. (upstate.edu)

When granular materials flow, the constituent particles segregate by size and align by shape. (edu.au)
The better you know your particles, the better you can predict your materials' behavior. (anton-paar.com)
Many raw materials released into the environment exhibit distinctive shapes which are indicative of an original formation process. (upstate.edu)

The form in which mineral particles originally crystallized is often highly characteristic. (upstate.edu)

Continuously cast samples exhibited Si particle coarsening, while commercially cast alloys undergo Si particle refinement. (unf.edu)

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