A family of flowering plants in the order Piperales best known for the black pepper widely used in SPICES, and for KAVA and Betel used for neuroactive properties.
Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents.
Unstable isotopes of cerium that decay or disintegrate emitting radiation. Ce atoms with atomic weights 132-135, 137, 139, and 141-148 are radioactive cerium isotopes.
Pharmacologic agents delivered into the nostrils in the form of a mist or spray.
Relating to the size of solids.
Preparation for electron microscopy of minute replicas of exposed surfaces of the cell which have been ruptured in the frozen state. The specimen is frozen, then cleaved under high vacuum at the same temperature. The exposed surface is shadowed with carbon and platinum and coated with carbon to obtain a carbon replica.
A replica technique in which cells are frozen to a very low temperature and cracked with a knife blade to expose the interior surfaces of the cells or cell membranes. The cracked cell surfaces are then freeze-dried to expose their constituents. The surfaces are now ready for shadowing to be viewed using an electron microscope. This method differs from freeze-fracturing in that no cryoprotectant is used and, thus, allows for the sublimation of water during the freeze-drying process to etch the surfaces.
Devices that cause a liquid or solid to be converted into an aerosol (spray) or a vapor. It is used in drug administration by inhalation, humidification of ambient air, and in certain analytical instruments.
A technetium imaging agent used in renal scintigraphy, computed tomography, lung ventilation imaging, gastrointestinal scintigraphy, and many other procedures which employ radionuclide imaging agents.
Air-filled spaces located within the bones around the NASAL CAVITY. They are extensions of the nasal cavity and lined by the ciliated NASAL MUCOSA. Each sinus is named for the cranial bone in which it is located, such as the ETHMOID SINUS; the FRONTAL SINUS; the MAXILLARY SINUS; and the SPHENOID SINUS.
The administration of drugs by the respiratory route. It includes insufflation into the respiratory tract.
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, atomic number 43, and atomic weight 98.91. All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent. Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.
The proximal portion of the respiratory passages on either side of the NASAL SEPTUM. Nasal cavities, extending from the nares to the NASOPHARYNX, are lined with ciliated NASAL MUCOSA.
Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.
Three-dimensional representation to show anatomic structures. Models may be used in place of intact animals or organisms for teaching, practice, and study.
Separation systems containing a relatively long-lived parent radionuclide which produces a short-lived daughter in its decay scheme. The daughter can be periodically extracted (milked) by means of an appropriate eluting agent.
The presence of bacteria, viruses, and fungi in the air. This term is not restricted to pathogenic organisms.
Compressed gases or vapors in a container which, upon release of pressure and expansion through a valve, carry another substance from the container. They are used for cosmetics, household cleaners, and so on. Examples are BUTANES; CARBON DIOXIDE; FLUOROCARBONS; NITROGEN; and PROPANE. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Pads made of various materials used for personal hygiene usually for absorbing URINE or FECES. They can be worn as underpants or pants liners by various age groups, from NEWBORNS to the ELDERLY. Absorbent pads can be made of fluff wood pulp and HYDROGEL absorbent covered with viscose rayon, polyester, polypropylene, or POLYETHYLENE coverstock.
Organized groups of users of goods and services.
The detection of long and short term side effects of conventional and traditional medicines through research, data mining, monitoring, and evaluation of healthcare information obtained from healthcare providers and patients.
The function of directing or controlling the actions or attitudes of an individual or group with more or less willing acquiescence of the followers.
A plant genus of the family PIPERACEAE that is indigenous in the Indian Malay region and cultivated in Madagascar, and the West Indies. It contains chavibetol, chavicol and cadinene. The leaf is chewed as a stimulant, antiseptic and sialogogue. The common name of betel is also used for ARECA.
Individuals referred to for expert or professional advice or services.
A plant species in the PIPERACEAE plant family. It is a common spice on foods and is used medicinally to increase gastrointestinal assimilation of other supplements and drugs. Piperine is a key component. Black pepper is picked unripe and heaped for a few days to ferment. White Pepper is the ripe fruit dehulled by maceration in water.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Acidic water usually pH 2.5 to 4.5, which poisons the ecosystem and adversely affects plants, fishes, and mammals. It is caused by industrial pollutants, mainly sulfur oxides and nitrogen oxides, emitted into the atmosphere and returning to earth in the form of acidic rain water.
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.
Travel beyond the earth's atmosphere.
A genus of gram-positive aerobic cocci found in the soil, that is highly resistant to radiation, especially ionizing radiation (RADIATION, IONIZING). Deinococcus radiodurans is the type species.
The ability of some cells or tissues to survive lethal doses of IONIZING RADIATION. Tolerance depends on the species, cell type, and physical and chemical variables, including RADIATION-PROTECTIVE AGENTS and RADIATION-SENSITIZING AGENTS.
Members of spacecraft crew including those who travel in space, and those in training for space flight. (From Webster, 10th ed; Jane's Aerospace Dictionary, 3d ed)
Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.
Using ice skates, roller skates, or skateboards in racing or other competition or for recreation.
Below normal weather temperatures that may lead to serious health problems. Extreme cold is a dangerous situation that can bring on health emergencies in susceptible people.
Fabric or other material used to cover the body.
A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].
Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.
Inorganic compounds that contain silicon as an integral part of the molecule.
The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.
Colloids formed by the combination of two immiscible liquids such as oil and water. Lipid-in-water emulsions are usually liquid, like milk or lotion. Water-in-lipid emulsions tend to be creams. The formation of emulsions may be aided by amphiphatic molecules that surround one component of the system to form MICELLES.
Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.
Unctuous combustible substances that are liquid or easily liquefiable on warming, and are soluble in ether but insoluble in water. Such substances, depending on their origin, are classified as animal, mineral, or vegetable oils. Depending on their behavior on heating, they are volatile or fixed. (Dorland, 28th ed)
Authoritative treatises on drugs and preparations, their description, formulation, analytic composition, physical constants, main chemical properties used in identification, standards for strength, purity, and dosage, chemical tests for determining identity and purity, etc. They are usually published under governmental jurisdiction (e.g., USP, the United States Pharmacopoeia; BP, British Pharmacopoeia; P. Helv., the Swiss Pharmacopoeia). They differ from FORMULARIES in that they are far more complete: formularies tend to be mere listings of formulas and prescriptions.
The interaction of persons or groups of persons representing various nations in the pursuit of a common goal or interest.
An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.
Process that is gone through in order for a drug to receive approval by a government regulatory agency. This includes any required pre-clinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance of the drug.
An element of the alkaline earth family of metals. It has the atomic symbol Sr, atomic number 38, and atomic weight 87.62.
A weight-carrying structure for navigation of the air that is supported either by its own buoyancy or by the dynamic action of the air against its surfaces. (Webster, 1973)
The practical application of physical, mechanical, and mathematical principles. (Stedman, 25th ed)
A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.
The science of the earth and other celestial bodies and their history as recorded in the rocks. It includes the study of geologic processes of an area such as rock formations, weathering and erosion, and sedimentation. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The study of crime and criminals with special reference to the personality factors and social conditions leading toward, or away from crime.
The inanimate matter of Earth, the structures and properties of this matter, and the processes that affect it.
... aerosol generators with oxygen as the atomizing gas. The aerosol generator is composed of a precursor delivery tube oriented ... Uniform particle size distributions are obtained using LF-FSP as it is a vapor phase process. For instance, Al2O3 nanopowders ... However, neither the particle size can reach the nanoscale, nor are the shapes uniform. LF-FSP directly produces nanopowders ... which induces particle deposition on both the wall and the wire. Metal alkoxides, carboxylates such as alumatrane [Al(OCH2CH2) ...
One also usefully can approximate the particle size distribution using a mathematical function. The normal distribution usually ... Aerogel Aeroplankton Aerosol spray, the spraying device Atmospheric particulate matter Bioaerosol Deposition (Aerosol physics) ... Aerosol spray Atomizer nozzle or nebulizer Electrospray Electronic cigarette Vibrating orifice aerosol generator (VOAG) ... more complicated particle-size distributions describe the sizes of the particles in a polydisperse aerosol. This distribution ...
Test Method for Determination of Weight Percent Volatile Content of Solvent-Borne Paints in Aerosol Cans D5201 - 05a(2020) ... 18 Test Method for Rubber Compounding Materials-Determination of Particle Size Distribution of Recycled Vulcanizate Particulate ... Practice for Testing and Use of a Random Number Generator in Lumber and Wood Products Simulation D5125 - 10(2020)e1 Test Method ... 12 Guide for Application of New Spray Applied Polyurethane Foam and Coated Roofing Systems D5470 - 17 Test Method for Thermal ...
Particle size distribution. These properties can be measured economically and accurately in the laboratory, using standard ... Davidson JH, McKinney PJ (1998). "Chemical vapor deposition in the corona discharge of electrostatic air cleaners". Aerosol ... Increasing the moisture content of the gas stream by spraying water or injecting steam into the duct work preceding the ESP ... Scrubber Air ionizer Ozone generator Air Purge System IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") ( ...
In some, but not all instances, water logging and soil salinization can result. However, irrigation can also be used, together ... when it is sprayed aerially, and when it is sprayed into water to kill algae. The amount of pesticide that migrates from the ... These particles are ingested by marine organisms, including fish later eaten by humans. The study states that many of the ... Six major effects of NOx and NH3 emissions have been identified: decreased atmospheric visibility due to ammonium aerosols ( ...
Spray ionization methods involve the formation of aerosol particles from a liquid solution and the formation of bare ions after ... Surface cleaning and pretreatment for large area deposition Thin film deposition Deposition of Thick Diamond-like carbon (DLC) ... can produce up to bare uranium ions and can be used as an ion source as well. Heavy ions can also be generated with an Ion Gun ... Van-de-Graaff generators or cyclotrons in nuclear and elementary particle physics. In atomic and surface physics ECR ion ...
Ultrasonic spray techniques are used to spray uniform coatings of photoresist onto high aspect ratio MEMs devices and can ... Ultrasonic spray pyrolysis is a chemical vapor deposition (CVD) method utilized in the formation of a variety of materials in ... synthesis of zirconia particles, and fabrication of solid oxide fuel cell SOFC cathodes. An atomized spray produced from an ... Once the amplitude of the capillary waves reaches a critical height (due to the power level supplied by the generator), they ...
... and Size Distribution of Solid Particles and Water in Light and Middle Distillate Fuels by Direct Imaging Analyzer D8051/D8051M ... Guide for Three-Piece Steel and Tinplate Straight-Wall and Necked-In Aerosol Cans D3064 - 97(2013) Terminology Relating To ... 14 Test Methods for Accumulated Deposition in a Steam Generator Tube D3484 - 06(2016) Test Methods for Rubber-Evaluation of Oil ... 19 Practice for Spraying, Sampling, Packaging, and Test Specimen Preparation of Spray Polyurethane Foam (SPF) Insulation for ...
Ions with a lower mass will reach the detector first.[17] However, in reality, even particles with the same m/z can arrive at ... NOAA Particle Analysis by Laser Mass Spectrometry aerosol mass spectrometer aboard a NASA WB-57 high-altitude research aircraft ... There are also some newly developed ionization techniques like laser spray. Capillary electrophoresis-mass spectrometry[edit]. ... However, mass spectrometry also shows promise for material synthesis.[46] Ion soft landing is characterized by deposition of ...
Erosion can be the result of material movement by the wind. There are two main effects. First, wind causes small particles to ... Henrik Breuning-Madsen and Theodore W. Awadzi (2005). "Harmattan dust deposition and particle size in Ghana". Catena. 63 (1): ... which can measure the Doppler shift of electromagnetic radiation scattered or reflected off suspended aerosols or molecules, ... Plant varieties near the coast, such as the Sitka spruce and sea grape, are pruned back by wind and salt spray near the ...
The conveyance featured a small can of paint packaged with an aerosol propellant and fitted with a spray head. 1950 Artificial ... 1956 Particle storage ring A storage ring is a type of circular particle accelerator in which a continuous or pulsed particle ... 1988 Fused deposition modeling Fused deposition modeling, which is often referred to by its initials FDM, is a type of additive ... Anger filed U.S. patent #2,779,876 on March 3, 1953 for his "Radio-Activity Distribution Detector" which was later issued on ...
Test Method for Particle Size Distribution of Alumina or Quartz by X-Ray Monitoring of Gravity Sedimentation C961 - 15 Test ... 16e1 Specification for Aerosol Polyurethane and Aerosol Latex Foam Sealants C1621/C1621M - 17 Test Method for Passing Ability ... 17 Specification for Spray-Applied Mineral Fiber Thermal and Sound Absorbing Insulation C1015 - 17 Practice for Installation of ... Test Method for Determining Whether Gas-Leak-Detector Fluid Solutions Can Cause Stress Corrosion Cracking of Brass Alloys G187 ...
This book describes the latest research on producing functional particles using spray processes. The authors detail micro level ... with average particle size distributions in the order of 100 μm can be generated independently from the design of the spray ... The fine particle fraction of the powder, which is suited to alveolar deposition in lungs, was increased to more than 40 %. In ... Besides the powder aerosols envisaged in the initial concept, the method can be adapted to the production of other ...
REACTIVE SPRAY ATOMIZATION AND DEPOSITION OF ALUMINUM ALLOYS: MODELING DISPERSOID VOLUME FRACTION AND SIZE DISTRIBUTION: J.-P. ... The total pressure of the particle impinging on the surface can reach 10 Gpa for some of the TS systems. Lower sintering ... It is pointed out that there are three kinds of mathematical models for the RF plasma generator and RFPCVD reactor: ... thermodynamic, hydrodynamic, and aerosol dynamic models with respective features. Research work on theoretical and technical ...
The medicament supply unit 32 can comprise an aerosol spray generator for generating an aerosol spray of liquid droplets ... along with the particle size distribution of the substance, are the significant factors determining the particle deposition ... The device of claim 55, wherein the delivery unit further comprises an aerosol spray generator for generating an aerosol spray ... In a preferred embodiment the particle size distribution of the substance can include a smaller fraction of larger particles, ...
... micro-particles both in the air and in alcohol was observed. Deposition of the silver nano-/micro-particles in the atmosphere ... micro-particles deposited on the silicon substrate both from the aerosol and fog showed that the form of the silver individual ... particles and nano-/microstructures greatly depends on the deposition conditions. By passing an aerosol through isopropyl ... It was found that the concerned annular layers contained silver particles of the same shape in the form of a Crescent (or Janus ...
Tonnis, W. F., et al. A novel aerosol generator for homogenous distribution of powder over the lungs after pulmonary ... Nahar, K., et al. In vitro, in vivo and ex vivo models for studying particle deposition and drug absorption of inhaled ... Before you can use the favorites feature you must sign in or create an account.. Continue with Shibboleth or. Forgot Password? ... Spray dried (SD) mannitol powder are used to investigate the effect of air volume used in powder dispersion16. The MMAD of SD ...
In this report, we challenge this paradigm by providing experimental evidence to support that gas-phase methods can be used to ... which can be a limiting factor for numerous applications. ... size distributions at the exit of the particle generator, the ... Controlled synthesis of nanostructured particles by flame spray pyrolysis. J. Aerosol Sci. 33, 369-389 (2002). ... before deposition)59,60. For deposited uncoated particles, coalescence on the substrate can be avoided by keeping the surface ...
... supply and plasma generator Plasmabrush from Reinhausen Plasma GmbH with an optimised spraying nozzle and an aerosol generator ... bead milling can be used to ensure an average filler particle size below 1 μm, consequently improving the distribution of the ... By applying the above-described procedure, the particle size distribution was determined to μm, μm, μm, and μm. ... Determination of the Particle Size Distribution and Specific Surface Areas. The particle size distribution of the powder was ...
What is Aerosol Drug Therapy? This study guide has practice questions (for Respiratory Therapy students) from Egans Chapter 39 ... They are aerosols with particles of different sizes.. 14. What are key mechanisms of aerosol deposition?. Inertial impaction, ... SPAG - Small particle aerosol generator.. 172. What serious problems are associated with the delivery of Virazole using the ... Aerosol particles can change size as a result of what?. Evaporation or hygroscopic water absorption. ...
... the role of particle sizes on the impact behavior of ceramic particles in aerosol deposition not yet fully understood. Hence, ... 5(d), the formation of the loading crack on the surface of the 100-nm particle can be explained by the stress distribution in X ... Deposition Mechanism of Dry Sprayed Ceramic Particles at Room Temperature Using a Nano-particle Deposition System, Acta Mater. ... Although agglomeration can be reduced by application of the vibration of the powder generator, re-agglomeration of small ...
The volatilized material may contain a volatilized solute and vehicle such that the resulting aerosol particle sizes of the ... The volatized material combines with ambient air such that volatized material condenses to form the aerosol. An apparatus and ... An aerosol is formed by supplying a material in liquid form to a flow passage and heating the flow passage such that the ... method for generating such an aerosol are disclosed wherein the apparatus may include an electrically conductive sleeve at an ...
... aerosol generators with oxygen as the atomizing gas. The aerosol generator is composed of a precursor delivery tube oriented ... Uniform particle size distributions are obtained using LF-FSP as it is a vapor phase process. For instance, Al2O3 nanopowders ... However, neither the particle size can reach the nanoscale, nor are the shapes uniform. LF-FSP directly produces nanopowders ... which induces particle deposition on both the wall and the wire. Metal alkoxides, carboxylates such as alumatrane [Al(OCH2CH2) ...
You can manage your cookie settings via your browser at any time. To learn more about how we use cookies, please see our ... The extent to which ENDS vapour is inhaled into the lung, and where the particles are absorbed, is also uncertain.20 Absorption ... Safety Report on the Ruyan e-cigarette Cartridge and Inhaled Aerosol. Christchurch, New Zealand: Health New Zealand Ltd, 2008. ... A comparison of the abuse liability and dependence potential of nicotine patch, gum, spray and inhaler. Psychopharmacology ( ...
One also usefully can approximate the particle size distribution using a mathematical function. The normal distribution usually ... Aerogel Aeroplankton Aerosol spray, the spraying device Atmospheric particulate matter Bioaerosol Deposition (Aerosol physics) ... Aerosol spray Atomizer nozzle or nebulizer Electrospray Electronic cigarette Vibrating orifice aerosol generator (VOAG) ... more complicated particle-size distributions describe the sizes of the particles in a polydisperse aerosol. This distribution ...
A high-volume spray aerosol generator producing small droplets for low pressure applications. Journal of Aerosol Science, 26, ... Particle size & Particle distribution: Determine the in vivo distribution, biological fate, toxicity & targeting ability. Drug ... The core of this system can enclose a variety of drugs, enzymes, genes and is characterized by a long circulation time due to ... 8 II ) Solvent displacement and interfacial deposition: Lipophilic drugs. e.g. Parenteral bifonazole and clotrimazole ...
The prepared blended Nafion membranes can be fabricated IPMCs with deposition of platinum electrode onto its surface without ... It is demonstrated that alternating current, electro-spray deposition allows for the fabrication of homogenous, flat, nanometer ... Therefore, two aerosol streams of both precursor components A and B are generated in parallel and mixed in one printing nozzle ... such sensor elements may comply with complicated surfaces and can be used to detect both the total value and the distribution ...
Bounceless high pressure drop cascade impactor and a method for determining particle size distribution of an aerosol. ... Apparatus, methods and precision spray processes for direct write and maskless mesoscale material deposition. ... Dry aerosol generator. US4403228. Mar 18, 1982. Sep 6, 1983. Matsushita Electric Industrial Company, Limited. Ink jet printing ... For example, an oxide of silicon, an oxy-nitride of silicon, and even amorphous silicon can provide many if not all of the ...
... such as single scattering albedo and effective radius can be also estimated from the derived aerosol component distributions. ... Control of transport and deposition of charged aerosol particles is important in various manufacturing processes. Aerosol ... Experimental setup consisted of an aerosol generator, a differential mobility analyzer (DMA), an optical particle counter (OPC ... Using the applicable constants of KH-RT model, we can predict the liquid length spray on a quantitative level. under various ...
At the duct outlet, the aerosol of metal compound liquid particles, which has formed in the duct, is caused to react with steam ... wherefore solid particles of hydrated metal oxide form, which are subsequently calcined to the oxide. ... Apparatus for preparing spherical, submicronic, monodispersed, and non-agglomerated particles of metal oxides by reacing with ... steam a gaseous stream containing an aerosol of liquid particles of a hydrolyzable metal compound. The apparatus is ...
A second approach to estimating the aerosol mass based on particle size distribution data obtained from SMPS and APS is not ... Within the studied time ranges, no significant changes in the size distributions of the MWCNT aerosols were monitored, as can ... Next, the aerosol generator was connected to the aerosol inlet of the chamber and the air flow to the Venturi nozzle inlet was ... 2015). Pneumatic spray systems were successfully used to produce individual and well-dispersed MWCNT aerosols in high and ...
When large lower-atmospheric volumes of particles are heated, a high pressure zone is created. If one can create a high ... The chemical tracers are introduced into the storm as aerosols via aircraft and/or surface generators. Analysis of the ... hydrometer growth rates and mechanisms and the spatial and temporal distribution of precipitation. ... time scales and trajectories of the air motions within convective storms and into the hydrometeor growth rates and deposition ...
Nano-aerosols can be generated when neutralization occurs in the gas phase. Neutralization of electrospan nano-fibers with ... molecular ions and charged nano-clusters may result in the formation of fibrous aerosols or free nano-mats. Nano-mats can also ... The claimed invention describes methods and apparatuses for manufacturing nano-aerosols and nano-structured materials based on ... When similar aerosol was captured on charged mica, notable distribution in the surface density and size of particles was ...
This can be accomplished by placing the electrospray generator in a chamber and the curing station could also be disposed in ... Electrohydrodynamic spraying to produce ultrafine particles. 1981-04-28. Mahoney et al.. 427/304. ... ELECTROSTATIC DEPOSITION APPARATUS. 1973-12-04. Probst. 118/626. 3717722. APPARATUS FOR PRINTING CONTINUOUS RUNS OF MATERIAL. ... METHOD AND APPARATUS FOR SUPPRESSING FUMES WITH CHARGED AEROSOLS. 1970-03-31. Marks. 23/2. ...
7).45 The submicron aerosol is generated by evaporating the output of the small-particle aerosol generator, which has low ... Targeting aerosol deposition to and within the lung airways using excipient enhanced growth. J Aerosol Med Pulm Drug Deliv 2013 ... Yes, there can be significant aerosol losses through the leak port, but there are significant aerosol losses even if the ... Perry et al32 investigated the in vitro inspired dose and particle size distribution of albuterol delivered by a mesh nebulizer ...
The zinc precursor can be delivered as an aerosol. ... than about 95 nm and a very narrow particle size distribution. ... The zinc oxide nanoparticles have average particle diameters of less ... Aerosol generators 173, 174 can operate based on a variety of principles, as described above with respect to aerosol generator ... For example, the aerosol can be produced with an ultrasonic nozzle, with an electrostatic spray system, with a pressure-flow or ...
Tetragonal zirconia particles thus formed are not broken ... 85 is a plasma generator 88. [0067] Plasma generator 88 can, in ... dental ceramic nanocrystals are formed by vaporization into individual particles. ... approach can also be more uniform in both shape and size distribution. Cylindrical and spherical particles can be manufactured ... The slurry is then collected and spray-dried to yield a nanoparticle powder. The powder can then be pressed into dental blanks ...
... deposition pattern of droplets administered by a spray pump indicate that local distribution is primarily in the anterior ... that the liquid can drain out and be nebulised by an aerosol generator. [0169]The aerosol of the invention may be used for the ... 0087]The dynamic viscosity also has an influence on the particle size distribution of the aerosol formed by nebulisation and on ... of the pulsating aerosol from the aerosol generator. [0030]As used herein, an aerosol generator is a device or a combination of ...
Typically, annual SO2 and NO2 means were lower for small than large Arctic cities, but can vary more than an order of magnitude ... It can neutralize 1) sulfate-related aerosol acidity to form ammonium-sulfate particles, and 2) nitric acid (HNO3; reaction ... Thus, frequency distributions of Ox can serve to examine the representativeness of a site. Comparison of the distributions ... Particulate matter has natural (e.g. sea spray, desert and soil dust), and anthropogenic sources, and can form in air by gas-to ...
conflicts of particles including and you can take where this evaluations. I are highly are that as an read indias war world war ... joints will discuss in distributions that ve ll and determine hierarchical living personnel notifying second age, particle, ... These pulses must suppose the read indias war world war ii and the making of of building- spray to please found before being ... fluorescent assessments are deposition User-defined region in one mammography. For legal measures with a probable read of free ...
... so it can construct a particle size distribution plot of a very large number of points. (ii) Light scattering is non-invasive ... Internal mouthpiece designs as a future perspective for enhanced aerosol deposition. Comparative results for aerosol ... combination of aerosol generator (jet-nebulizer, ultrasound nebulizer), residual cup design and residual cup loading for ... the nebulization configuration included a pneumatic nebulizer attached to cyclonic spray chamber and the resulting spray was ...
The same technique of dry powder inhalation can be used to test for the susceptibility of a person to rhinitus, to induce ... The substance is in the form of a dispersible dry powder containing an effective proportion of particles of a respirable size. ... Device for specific inhalation challenge, method of use and improved generator of particles. ... images with a gamma camera gives good information about the initial deposition of radioaerosol in terms of distribution and ...
  • For inhalation, the mouse is placed in a whole-body or nose-only chamber where dry powder is aerosolized and the animals breathe in the aerosol without sedation 8 , 9 . (jove.com)
  • For such inhalation toxicological and instrument response studies, purely fiber-containing aerosols with stable concentrations of morphologically uniform and fully de-agglomerated nanofibers are desirable but currently not available. (springer.com)
  • The same technique of dry powder inhalation can be used to test for the susceptibility of a person to rhinitus, to induce sputum and promote mucociliary clearance. (google.com)
  • capturing the aerosol in a chamber suitable for subsequent inhalation by the patient. (google.com.au)
  • A whole-body mouse inhalation system was also used to expose C57BL/6 J mice to aerosol emissions. (biomedcentral.com)
  • There is limited knowledge about the potential routes for H5N1 influenza virus transmission to and between humans, and it is not clear whether humans can be infected through inhalation of aerosolized H5N1 virus particles. (biomedcentral.com)
  • Ferrets were successfully infected through intranasal instillation or through inhalation of small particle aerosols with four different doses of Influenza virus A/Vietnam/1203/2004 (H5N1). (biomedcentral.com)
  • The animals developed severe influenza encephalomyelitis following intranasal or inhalation exposure to 10 1 , 10 2 , 10 3 , or 10 4 infectious virus particles per ferret. (biomedcentral.com)
  • Such pulmonary drug delivery compositions are designed to be delivered by inhalation by the patient of a drug dispersion so that the active drug within the dispersion can reach the lung. (google.es)
  • A similar approach can also be applied for the habituation and inhalation exposure of mini-pigs, a species increasingly used for respiratory safety assessment studies. (inhalationasia.org)
  • Aerosol generation and characterization are critical components in the assessment of the inhalation hazards of engineered nanomaterials (NMs). (biomedcentral.com)
  • Because of the possible link between inhalation exposure of MWCNTs and respiratory toxicity [ 8 ], there is interest in better understanding the mechanisms by which MWCNTs can induce inhalation toxicity. (biomedcentral.com)
  • Specifically, it relates to aerosols containing opioids that are used in inhalation therapy. (google.ca)
  • In a kit aspect of the present invention, a kit for delivering an opioid through an inhalation route is provided which comprises: a) a thin layer of an opioid and b) a device for dispensing said thin layer as a condensation aerosol. (google.ca)
  • This review will focus on the newest applications for aerosol therapy by oral inhalation. (springeropen.com)
  • Exposure by inhalation to dust, spray or mist should be controlled by local exhaust ventilation. (spotidoc.com)
  • A Scanning Mobility Particle Sizer (SMPS, Model 3936, TSI, Inc.) was used to count number particle concentration before (C in ) and after (C out ) test filters. (aiha.org)
  • The extent of powder dispersion can be inspected by the amount of powder remaining in the pipette tip. (jove.com)
  • The dispersion of powder into respirable particles depends on creation of turbulent flow in inhaler. (respiratorytherapyzone.com)
  • Tracers used in sufficient amounts for this purpose could add immeasurably to our knowledge of the currents of the atmosphere and the dispersion within air masses. (chemtrailsmuststop.com)
  • Pulmonary drug delivery can itself be achieved by different approaches, including liquid nebulizers, aerosol-based metered dose inhalers (MDI's), and dry powder dispersion devices. (google.es)
  • Dry powder dispersion devices, which do not rely on CFC aerosol technology, are promising for delivering drugs that may be readily formulated as dry powders. (google.es)
  • Catalytic properties such as percent of metal dispersion, active metal surface area, acid strength, surface acidity, distribution of strength of active sites, BET surface area can quickly be determined. (atascientific.com.au)
  • Aerosol neutralizers are an essential piece of many aerosol research studies because aerosol particles dispersed by nebulization, combustion, or powder dispersion are usually electrostatically charged. (tsi.com)
  • How does the size distribution of the particles affect the dispersion and spread of the aerosol cloud? (tsi.com)
  • Usually the colloidal NMP solutions can be considered as the micro-emulsions which can be formed and stabilized by the surfactants. (scirp.org)
  • New methods such as 3D static and dynamic light scattering (3D LS) as well as diffusing wave spectroscopy (DWS) can cover a much extended range of experimental parameters ranging from dilute polymer solutions, colloidal suspensions to extremely opaque viscoelastic emulsions. (spie.org)
  • Livermore's process uses membranes to produce a mono-dispense slurry of colloidal silica particles for which there are several applications. (llnl.gov)
  • The primary methods by which the agglomerated granules are formed include solid bridges, sintering, chemical reaction, crystallization and deposition of colloidal particles. (manoxblog.com)
  • M3.00002: Eulerian flow modeling of suspensions containing interacting nano-particles: application to colloidal film drying. (aps.org)
  • Aerosolization experiments of mixtures of multi-walled carbon nanotubes (MWCNTs) and glass beads that were continuously fed into a Venturi nozzle enabled high generation rates of aerosols composed of individual and agglomerate nanofiber structures. (springer.com)
  • For the treatment of lung diseases, high local drug concentration can be achieved by pulmonary delivery, thereby reducing the required dose and lowering the incidence of systemic side effects. (jove.com)
  • Infection, airway reactivity, pulmonary and systemic effects of bland aerosols, drug concentration changes during nebulization, and eye irritation. (respiratorytherapyzone.com)
  • There are several measures of aerosol concentration. (wikipedia.org)
  • Also commonly used is the number concentration (N), the number of particles per unit volume, in units such as number per m3 or number per cm3. (wikipedia.org)
  • The aerosol process achieved good stability over more than 2 h with respect to concentration and aerodynamic size distribution. (springer.com)
  • The aerosol concentration can be controlled by changing the mass ratio of MWCNTs and glass beads or by adapting the mass feed rate to the nozzle. (springer.com)
  • The results showed that ciprofloxacin liposome for pulmonary administration could be delivered to a specific target site and achieve a high local concentration. (inhalationasia.org)
  • We found that diluted (1:15) exposure pine combustion emissions (PM 1 mass 7.7 ± 6.5 mg m − 3 , 41 mg MJ − 1 ) contained, on average, more PM and polycyclic aromatic hydrocarbons (PAHs) than spruce (PM 1 mass 4.3 ± 5.1 mg m − 3 , 26 mg MJ − 1 ) emissions, which instead showed a higher concentration of inorganic metals in the emission aerosol. (biomedcentral.com)
  • Based on a literature review and workshop discussions, an in vitro system to assess pulmonary fibrosis following MWCNT exposure should consider aspects such as the mode of exposure (e.g., aerosol exposure of ALI cultures versus liquid media exposure of submerged cultures), relevant receptor (e.g., choice of cell types), concentration, and duration of exposure (e.g., relevance to real exposure scenarios). (biomedcentral.com)
  • Granulation is an exemplary of particle design and the properties of the particles acquired after granulation depend on particle size of the drug and excipients, the type, concentration, and volume of binder and/or solvents, granulation time, type of granulator, drying rate (temperature and time), etc. (manoxblog.com)
  • PM 10 ± SD ) and 309 ±30 µg/m 3 respectively), whereas in study 2, the PDE exposure concentrations remained similar (310 ±34 µg/m 3 ) , but RME100 levels were lower in PM (165 ±16 µg/m 3 ) and PAHs, but higher in particle number concentration. (researchsquare.com)
  • Also commonly used is the number concentration ( N ), the number of particles per unit volume, in units such as number per m 3 or number per cm 3 . (kiwix.org)
  • Tropical surface waters, one could argue, will still be at the surface a year from now, so there is plenty of time for them to replenish their CO 2 concentration by sucking it out of the atmosphere. (realclimate.org)
  • Size, distribution, and concentration are particle characteristics that are relevant to the above research questions. (tsi.com)
  • In this experiment, researchers sought to measure the size distribution and concentration of aerosol particles emitted by a person during coughing events. (tsi.com)
  • they have excellent sizing resolution and particle concentration range. (tsi.com)
  • Recent research lead to the conclusion that carbon monoxide and other combustion gasses produced during a wildfire remain in the earth stratosphere, other studies suggests that high concentration of sooty particles in the stratosphere could increase absorption of incoming solar radiation during winter period. (ehsdb.com)
  • AAS can be used to analyse the concentration of over 62 different metals in a solution. (blogspot.com.br)
  • The measured absorption at each concentration is then plotted, so that a straight line can then be drawn between the resulting points. (blogspot.com.br)
  • Pulsed laser deposition (PLD) is a unique physical vapor deposition technique that is making available high quality thin films of complex, multicomponent materials for the design and fabrication of advanced electronic devices and protective coatings. (tms.org)
  • Vanes, exposed to higher temperature and thermal load, require electron beam physical vapor deposition (EB-PVD) ceramic on FE/A1 laminates of different layer thicknesses were produced by PVD. (tms.org)
  • The diagnostics for the former includes the primary breakup from liquid jet to ligaments or droplets and the secondary atomization from a bigger droplet to a smaller one, and the latter includes the droplet evaporation and the vapor distributions in a spray. (spie.org)
  • On the other hand, the change of the vapor penetration and the fuel mass fraction and equivalence ratio distribution with change of fuel injection and ambient conditions quantitatively. (spie.org)
  • Many smoking articles have been based on the generation of an aerosol or a vapor. (justia.com)
  • Some of these products purportedly produce an aerosol or a vapor without heat. (justia.com)
  • On smoking, the burning fuel heated the nicotine source material to cause the release of nicotine vapor and potentially aerosol generating material, including water vapor. (justia.com)
  • and, b) passing air through the heated vapor to produce aerosol particles having less than 5% degradation product and an aerosol having an MMAD less than 3 microns. (google.ca)
  • 1. A condensation aerosol for delivery of diphenhydramine formed by heating a composition containing diphenhydramine coated on a solid support to form a vapor and condensing the vapor to form a condensation aerosol comprising particles, wherein the particles comprise at least 10 percent by weight of diphenhydramine and less than 5 percent by weight of diphenhydramine degradation products, and the condensation aerosol has an MMAD of less than 5 microns. (google.ca)
  • 13. The condensation aerosol according to claim 2 , wherein the condensing comprises allowing the vapor to cool. (google.ca)
  • Optional Vapor Generator permits analysis using vaporised liquids in an inert carrier stream. (atascientific.com.au)
  • In order to simulate the collisions of droplets with unequal viscosity, an extension of the VOF method has been made by solving an additional transport equation to obtain the polymer mass fraction distribution inside the collision complex. (springerprofessional.de)
  • An aerosol (abbreviation of "aero-solution") is a suspension of fine solid particles or liquid droplets in air or another gas. (wikipedia.org)
  • Diseases can also spread by means of small droplets in the breath, also called aerosols (or sometimes bioaerosols). (wikipedia.org)
  • Liquid droplets are almost always nearly spherical, but scientists use an equivalent diameter to characterize the properties of various shapes of solid particles, some very irregular. (wikipedia.org)
  • The 3D-CFD code used in this study predicts the spray cone angle and entrainment of ambient gas are predicted excessively, therefore there is the possibility of the improvement in the prediction accuracy by the refinement of fuel droplets breakup and evaporation model and the quantitative prediction of spray cone angle. (spie.org)
  • Transmission of seasonal influenza A viruses by large droplets without accompanying aerosols has been simulated by intranasal droplet infection [ 18 ]. (biomedcentral.com)
  • Either water is brought into contact with water droplets by spraying or air is brought into contact with water by means of aeration facilities. (shubhamindia.com)
  • First, an air-assist internally mixing atomizer is developed to generate a poly-disperse distribution of droplets for ventilation testing. (ubc.ca)
  • Second, the atomizer is used to inject droplets into a mock-up of a patient recovery room with an underfloor air distribution ventilation system. (ubc.ca)
  • We know that infected people generate and release droplets and aerosols by coughing, breathing, speaking, etc. (tsi.com)
  • Others who have contact with these droplets or aerosols may risk infection. (tsi.com)
  • What is the viral content and its viability within the aerosol droplets or particles? (tsi.com)
  • Droplets eventually become tiny solid particles that may contain viable microorganisms, including viruses. (tsi.com)
  • We know that very small droplets and particles are able to deposit deep into the respiratory tract . (tsi.com)
  • The composition of aerosol, the initial size of particles, the time in suspension, and the ambient condition. (respiratorytherapyzone.com)
  • Also, neither phase separation within each particle nor composition variance among particles is observed, as the entire process is so rapid that atomically mixed particles are formed. (wikipedia.org)
  • Both require nanofiber-containing aerosols of known morphological composition and controlled fraction of individual fibers. (springer.com)
  • Comprehensive scanning electron microscope analysis of filter samples was performed to categorize and determine the morphological composition of the aerosol, its fiber content as well as fiber length and diameter distributions. (springer.com)
  • In a composition aspect of the present invention, a composition of a diphenhydramine condensation aerosol is presented. (google.ca)
  • 2 . The composition according to claim 1 , wherein the aerosol particles are formed at a rate of at least 10 9 particles per second. (google.ca)
  • Taken together, the results highlight the importance of careful and informed selection of Gram-negative bacterial biothreat simulants and also the accompanying particle size and composition. (asm.org)
  • Conclusions Cardiovascular impairment did not differ following controlled exposure to biodiesel exhaust as compared to PDE, despite differences in PM composition and particle reactivity. (researchsquare.com)
  • Considerable work is required for the characterization of fiber-containing aerosols. (springer.com)
  • For example, both dose uniformity and Aerodynamic Particle Size Distribution (APSD) characterization are required. (inhalationasia.org)
  • Comprehensive in vitro and in vivo exposure studies with emission characterization and systems biology approaches revealed further information on the effects of combustion aerosol toxicity than could be achieved with either method alone. (biomedcentral.com)
  • Additionally, characterization methods that can be used and the time points at which characterization can be conducted in order to interpret in vitro exposure results were assessed. (biomedcentral.com)
  • Summarized below is the information presented and discussed regarding the relevance of various aerosol generation and characterization techniques specific to aerosolized MWCNTs exposed to cells cultured at the air-liquid interface (ALI). (biomedcentral.com)
  • The generation of MWCNT aerosols relevant to human exposures and their characterization throughout exposure in an ALI system is critical for extrapolation of in vitro results to toxicological outcomes in humans. (biomedcentral.com)
  • DFZ-UENVs were formulated by thin-film hydration technique followed by characterization for different parameters including entrapment efficiency (%EE), particle size, in vitro release and ex vivo permeation studies. (bvsalud.org)
  • The modeling results reveal that particles with original diameter of 25-75 nm exhibit three different impact behaviors that could be distinguished as (i) rebounding, (ii) bonding and (iii) fragmentation, depending on their initial impact velocity. (springer.com)
  • heating the liquid in the flow passage such that the liquid is volatilized and expands out of an open end of the flow passage and forms a propylene glycol aerosol of aerosolized budesonide having a mass median aerosol diameter (MMAD) of 2 μm or less, wherein the liquid includes propylene glycol and the aerosol includes aerosolized propylene glycol having a larger MMAD than the aerosolized budesonide. (google.com.au)
  • Particle size has a major influence on particle properties, and the aerosol particle radius or diameter (dp) is a key property used to characterise aerosols. (wikipedia.org)
  • The equivalent diameter is the diameter of a spherical particle with the same value of some physical property as the irregular particle. (wikipedia.org)
  • The equivalent volume diameter (de) is defined as the diameter of a sphere of the same volume as that of the irregular particle. (wikipedia.org)
  • For a monodisperse aerosol, a single number-the particle diameter-suffices to describe the size of the particles. (wikipedia.org)
  • A new cyclone, based on the concept of the GS3 respirable dust cyclone, was designed to use a 25-mm filter holder with an effective dust deposition diameter of approximately 8.5 mm. (aiha.org)
  • and an aerosol particle size distribution of about 1.0-5.0 μm mass median aerodynamic diameter (MMAD), usually 1.5-4.5 μm MMAD, and preferably 1.5-4.0 MMAD. (google.es)
  • wherein the particles have a tap density of less than 0.4 g/cm 3 , the particle size is less thatn 10 μm , and the particles have a mean aerodynamic diameter between about 1 μm and about 5 μm. (google.es)
  • The ratio of wall thickness to diameter can be varied by different processes. (royalsocietypublishing.org)
  • Characteristics such as particle diameter, shell thickness, diffusivity and uniformity are very important in many cases for both fundamental research and practical applications. (royalsocietypublishing.org)
  • 13. The device of claim 12, wherein the powder is made of particles having a mean diameter of less than six nanometers. (patentsencyclopedia.com)
  • The same hypothetical log-normal aerosol distribution plotted, from top to bottom, as a number vs. diameter distribution, a surface area vs. diameter distribution, and a volume vs. diameter distribution. (kiwix.org)
  • It uses a robust 'time of flight" technique that determines the aerodynamic particle diameter, a parameter that is commonly used to characterize the deposition of particles in the human respiratory system. (tsi.com)
  • Sampling efficiency of the EOS cyclone was determined using polydisperse glass sphere particles and a time of flight real time direct reading instrument (Aerodynamic Particle Sizer). (aiha.org)
  • For measuring particles in the 0.5 to 20µm range, the 3321 Aerodynamic Particle Sizer Spectrometer is a field-proven instrument. (tsi.com)
  • The 3330 Optical Particle Sizer is another instrument that can measure airborne particles in the 0.3 to 10 µm size range, but with a lower size resolution compared to the 3321 APS. (tsi.com)
  • However, more complicated particle-size distributions describe the sizes of the particles in a polydisperse aerosol. (wikipedia.org)
  • At TSI, we manufacture a full line of individual aerosol generators and dispersers capable of producing monodisperse or polydisperse aerosols depending on your application. (tsi.com)
  • Unlike humans who can inhale dry powder actively, pulmonary delivery of dry powder to small animals is challenging. (jove.com)
  • Furthermore, liposome encapsulated ciprofloxacin, which directly targets the lung could prolong the residence time of the drug in the lung, thereby reducing the pulmonary irritation and decreasing the systemic side effects. (inhalationasia.org)
  • Such pulmonary delivery can be effective both for systemic delivery and for localized delivery to treat diseases of the lungs. (google.es)
  • An extensive review was conducted on aerosol generation and exposure apparatus as part of an international expert workshop convened to discuss the design of an in vitro testing strategy to assess pulmonary toxicity following exposure to aerosolized particles. (biomedcentral.com)
  • DPIs are devices which require adequate inspiratory flow rate for optimal deposition of drugs in lungs.These devices are easier to use since they overcome the hand lung coordination required in MDI. (palawanboard.com)
  • This preprint is under consideration at Particle and Fibre Toxicology . (researchsquare.com)
  • Examples of anthropogenic aerosols are particulate air pollutants and smoke. (wikipedia.org)
  • FIG. 18 shows an example of an aerosol collector based on the use of a water-soluble nano-filter. (justia.com)
  • Volcano eruption is an example of an aerosol produced by natural causes. (ehsdb.com)
  • While the whole-body chamber may be technically less challenging, the nose-only exposure chamber could minimize exposure of drugs to the body surface. (jove.com)
  • Furthermore, a more accurate and holistic view of the toxicity of aerosols can be gained with parallel in vitro and in vivo studies using direct exposure methods. (biomedcentral.com)
  • Moreover, modern exposure techniques such as air-liquid interface (ALI) exposures enable better assessment of the toxicity of the applied aerosols than, for example, the previous state-of-the-art submerged cell exposure techniques. (biomedcentral.com)
  • Aerosol generators, for dry or liquid particle suspension aerosolization, and exposure chambers, including both commercially available systems and those developed by independent researchers, were evaluated. (biomedcentral.com)
  • Spacers have various advantages as it assists in pMDI use by reducing the hand lung coordination , by increasing the drug delivery to lungs and simultaneously reducing oropharyngeal deposition and systemic absorption. (palawanboard.com)
  • Aerosol is defined as a suspension system of solid or liquid particles in a gas. (wikipedia.org)
  • An aerosol can be defined as a system of solid or liquid particles suspended in air or other gaseous environment. (ehsdb.com)
  • 10. The method of claim 1 , wherein the flow passage includes an electrically conductive sleeve at the open end, the conductive sleeve being effective to provide a narrow particle size distribution of the aerosol. (google.com.au)
  • 2 Consequently, the ideal characteristics of granules include spherical shape for improved flow, narrow particle size distribution for content uniformity and volumetric dispensing, sufficient fines to fill void spaces between granules for better compaction and compression characteristics, and adequate moisture and hardness to prevent breaking and dust formation during process. (manoxblog.com)
  • 8. The method of claim 1 , wherein the aerosol is formed by condensation of the volatilized liquid. (google.com.au)
  • 2. The condensation aerosol according to claim 1 , wherein the condensation aerosol has an MMAD of 0.2 to 3 microns. (google.ca)
  • 3. The condensation aerosol according to claim 1 or claim 2 , wherein the geometric standard deviation around the MMAD is less than 3.0. (google.ca)
  • This fully automated chemisorption analyser has four internal temperature-controlled zones can be heated independently up to 150 °C which prevent condensation. (atascientific.com.au)
  • Four internal temperature-controlled zones can be heated independently up to 150°C. This prevents condensation in the flow path and allows studies to be performed with vapors. (atascientific.com.au)
  • For measuring particles in the 1 to 1000nm size range, TSI offers instruments based on the electrical mobility classification, followed with counting by a condensation particle counter. (tsi.com)
  • A comparative study of the structure and fractal properties of arrays of the silver nano-/micro-particles deposited on the silicon substrate both from the aerosol and fog showed that the form of the silver individual particles and nano-/microstructures greatly depends on the deposition conditions. (scirp.org)
  • The disadvantage of the newly proposed method of the metallic nano-/mi- crostructures (NMS) layers synthesis by the "dry" aerosol deposition [6] consists in the random ballistic mechanism of coatings formation on the substrate surface. (scirp.org)
  • Detailed stress and strain field distributions reveal that combination of "localized inelastic deformation" along the slip systems and "shear localization" cause bonding of the small and large particles to the substrate. (springer.com)
  • Respectively, needed inertias define a minimum size of the ceramic particles for reaching the substrate with sufficiently high velocity for successful deposition of dense ceramic layers via AD. (springer.com)
  • Nano-mats can also be produced on a suitable substrate, forming efficient nano-filters. (justia.com)
  • The article preferably comprises a short combustible fuel element having a density greater than 0.5 g/cc, a separate substrate bearing an aerosol forming material, a heat conducting member recessed from the lighting end of the fuel element, which preferably encloses the substrate, a resilient insulating jacket encircling at least a portion of the fuel element, and an optional tobacco jacket encircling at least a portion of the aerosol forming material. (justia.com)
  • The enhancement of the ABCA family locally to the respiratory system prior to the aerosol cisplatin administration can be used safely and efficiently. (jcancer.org)
  • Image of a forest fire, an example of bad aerosol because of its negative impact in the eco system,visibility, and human respiratory system. (ehsdb.com)
  • While smoke from volcano eruption can have severe effects on the respiratory system and cause damage to private and public property in the surroundings of the volcano, it is considered as a part of the ecosystem and cannot be prevented. (ehsdb.com)
  • Cylindrical and spherical particles can be manufactured by this approach, whereas prior art dental ceramic particles were generally neither. (patents.com)
  • Most of the particles in this aerosol are nearly spherical. (kiwix.org)
  • 5. The particles of claim 1 , wherein the particles have a tap density of less than 0.34 g/cm 3 . (google.es)
  • An apparatus and method for generating such an aerosol are disclosed wherein the apparatus may include an electrically conductive sleeve at an open end of the flow passage, an electrically conductive flow passage and/or a spacer chamber. (google.com.au)
  • The present invention relates generally to an apparatus and method for generating aerosols without compressed gas propellants. (google.com.au)
  • Other technological applications of aerosols include dispersal of pesticides, medical treatment of respiratory illnesses, and combustion technology. (wikipedia.org)
  • The oxygen/alcohol aerosol undergoes rapid combustion within milliseconds, oxidizing all the organic components at temperatures up to 2000 °C leaving only metal-oxyanions e.g. (wikipedia.org)
  • Wood combustion emissions have been studied previously either by in vitro or in vivo models using collected particles, yet most studies have neglected gaseous compounds. (biomedcentral.com)
  • Combustion aerosols of different wood species result in mild but aerosol specific in vitro and in vivo effects. (biomedcentral.com)
  • We studied the toxic effects of wood combustion aerosols. (biomedcentral.com)
  • The present invention relates to a smoking article, preferably in cigarette form, which produces an aerosol that resembles tobacco smoke, and which advantageously contains substantially reduced amounts of incomplete combustion and pyrolysis products than are normally produced by a conventional cigarette. (justia.com)
  • The latter can also be produced inadvertently as a portion of combustion emissions, but they are also produced intentionally for commercial uses. (ehsdb.com)
  • Once ignited, a chain reaction must take place whereby fires can sustain their own heat by the further release of heat energy in the process of combustion and may propagate, provided there is a continuous supply of an oxidizer and fuel. (haahta.com)
  • Moreover, the relatively low enzymatic activities in the lung can reduce premature drug metabolism. (jove.com)
  • It thus seems reasonable to combine aerosol therapy with NIV for patients with obstructive lung disease when both of these therapies are clinically indicated. (rcjournal.com)
  • An example of a simpler in vitro model for testing the lung effects of NMs could be submerged cultures of a single cell type, and an example of a more complex system could be a co-culture system of relevant cell types exposed to aerosolized NMs at the air-liquid interface (ALI). (biomedcentral.com)
  • The hand lung coordination problem encountered while using MDIs can be overcome by using MDI with spacer. (palawanboard.com)
  • The patients who use standard pMDIs without a spacer, failure to coordinate inspiration with actuation ,results in reduced lung deposition of medication 16. (palawanboard.com)
  • Inefficient technique with DPIs may also lead to insufficient drug delivery and therefore insufficient lung deposition 19. (palawanboard.com)
  • There are many advantages to administering medications to the lung as an aerosol. (springeropen.com)
  • Traditional aerosol therapies with the lung as the target consist of short-acting β 2 -adrenergic agonists and long-acting β 2 -adrenergic agonists (LABA), anticholinergics, inhaled corticosteroids (ICSs), nonsteroidal anti-inflammatories, antibiotics and mucolytics. (springeropen.com)
  • Binary droplet collisions play an important role as an essential elementary process in sprays. (springerprofessional.de)
  • They significantly influence the droplet size distribution. (springerprofessional.de)
  • The present work is based on the idea that tailoring specific structures at the interfaces of an emulsion or at the surface of a drying droplet can be used to modify or improve the functionality of microcapsules prepared by spray-drying. (springerprofessional.de)
  • FIG. 7 shows neutralization of a charged electro spray-produced negative particle or droplet (left) with positively charged molecular ions produced by electrospraying of a pure solvent in a positive mode. (justia.com)
  • In vitro measurements also indicated that the gaseous fraction of emission aerosols may be more important in causing adverse toxicological effects. (biomedcentral.com)
  • The highest overall stability was observed for bioaerosols produced using SCM-containing spray liquids. (asm.org)
  • Biological aerosols (bioaerosols) have been studied in indoor and outdoor environments for more than a century and for several different reasons, including biodefense, atmospheric science, indoor air quality control, and microbial ecology-related questions ( 1 ). (asm.org)
  • A monodisperse aerosol, producible in the laboratory, contains particles of uniform size. (wikipedia.org)
  • For instance, the smaller size of sintered tetragonal zirconia crystals increases optical translucence by reducing scattering from birefringence, and the small average particle size and tight distribution of sizes and shapes can essentially eliminate pores in a sintered product. (patents.com)
  • The optimized ciprofloxacin liposome, which had a high encapsulation efficiency of 93.96%, and an average particle size of 349.65 nm with a span of 0.42, showed sustained in vitro release. (inhalationasia.org)
  • larger particles with a significant settling speed make the mixture a suspension, but the distinction is not clear-cut. (wikipedia.org)
  • A suspension of small liquid or solid particles in gas. (mpenvis.nic.in)
  • 2016 ). Systematic challenging of such instruments with well-characterized fiber-containing aerosols is therefore required to study principle limitations and response characteristics. (springer.com)
  • The claimed invention describes methods and apparatuses for manufacturing nano-aerosols and nano-structured materials based on the neutralization of charged electrosprayed products with oppositely charged electrosprayed products. (justia.com)
  • FIG. 1 shows an example of a flow diagram for producing nano-aerosols and nano-structured materials. (justia.com)
  • However the secondary effects could be prevented by techniques based on aerosol science, for example using nano structured materials as absorbents to selectively capture undesired metals and other pollutants the atmosphere. (ehsdb.com)
  • Select from a broad range of particle counters, including those specifically designed for research, controlled environments and occupational/indoor air quality applications. (tsi.com)
  • The substance is in the form of a dispersible dry powder containing an effective proportion of particles of a respirable size. (google.com)
  • 12. A method for increasing mucociliary clearance or inducing sputum comprising the step of causing a subject to inhale into the subject's airways an effective amount of a substance capable of increasing the osmolarity of airway surface liquid, the substance being in the form of a dispersible dry powder, other than a dry powder dissolved in a liquid, containing an effective proportion of particles of a respirable size. (google.com)
  • This evaluation looks to determine if metal dust from hand grinding can result in overexposures to Mn in the respirable range. (aiha.org)
  • Aerosol Drug Therapy refers to a method of administering medications in the form of tiny powder or liquid particles that are suspended in gas. (respiratorytherapyzone.com)
  • An aerosol is formed by supplying a material in liquid form to a flow passage and heating the flow passage such that the material volatizes and expands out of an open end of the flow passage. (google.com.au)
  • 12. The method of claim 1 , wherein the liquid consists of solid budesonide particles suspended in propylene glycol. (google.com.au)
  • For example, it is often desirable to treat respiratory ailments with, or deliver medicaments by means of, aerosol sprays of finely divided particles of liquid and/or solid, such as powders, liquid medicaments, and the like, which are inhaled into a patient's lungs. (google.com.au)
  • Liquid-feed flame spray pyrolysis (LF-FSP) is one of the most recent iterations in flame spray pyrolysis (FSP) powder production technology. (wikipedia.org)
  • this can be understood practically as the number of metal atoms injected into the flame per volume of liquid. (wikipedia.org)
  • Using the applicable constants of KH-RT model, we can predict the liquid length spray on a quantitative level. (spie.org)
  • Silver nanoparticles (AgNPs) are often suspended in a liquid which can be aerosolised or used in a solid form and are widely used as anti-microbials in consumer products especially for textiles, personal hygiene products, medical equipment, wound dressings, respiratory devices, catheters and disinfectant sprays. (biomedcentral.com)
  • The Present Invention relates to a pumping device/cosmetic container that can measure piezoelectric properties for liquid/viscous materials inside the pumping device and show the piezoelectric property of the liquid/viscous materials. (techconnectworld.com)
  • For polymer concentrations above 63 wt%, hollow microspheres could not be generated, but instead PMSQ fibres encapsulating PFH liquid were obtained. (royalsocietypublishing.org)
  • Granulation process can be divided into two types: wet granulation that utilize a liquid in the process and dry granulation that requires no liquid. (manoxblog.com)
  • The results highlight how even moderate changes to one experimental parameter, e.g., bacterial species, spray liquid, or particle size, can strongly affect the aerobiological stability of Gram-negative bacteria. (asm.org)
  • If adequate protection is not provided, an aerosol fire will grow quickly and produce high temperatures, thick smoke and rocketing containers that can trail burning liquid to areas well away from the fire's origin. (ehsdb.com)
  • The contents of the can may be a flammable liquid that is vaporized by the heat and loss of containment. (ehsdb.com)
  • The most important of these natural components are sea salt, soil and rock debris, products of volcanic emissions, smoke from forest fires, and solid and liquid particles formed by chemical reactions in the atmosphere. (ehsdb.com)
  • The processes can completely oxidise organic materials to carbon dioxide and water, although it is often not necessary to operate the processes to this level of treatment. (shubhamindia.com)
  • If could be, however, that a sustained fertilization will allow the snivelers and the poopers time to get their acts in gear and start exporting carbon more efficiently. (realclimate.org)
  • Modelers have long ago concluded that iron fertilization of the ocean can play only a small role in managing the carbon cycle in the coming century. (realclimate.org)
  • same zieglernatta catalysts between the capable particles for the orbit carbon of the particle step has pursued in the current of point or discretization. (taido-hannover.de)
  • Hence, with the aim to supply a more general understanding, modeling series of low strain rate compression and high-speed impact were performed by molecular dynamics on single-crystalline particles in sizes of 10-300 nm that are tuned to match mechanical properties of TiO 2 -anatase. (springer.com)
  • For example, during the past twenty-five years he and his students have investigated the microwave plasma assisted deposition of polycrystalline and single crystalline diamonds. (msu.edu)
  • 19. What are therapeutic aerosol depositions influenced by? (respiratorytherapyzone.com)
  • The small-scale humanoid robots can also assist ongoing therapeutic treatment research with autistic children. (spie.org)
  • Another approach splits the complete size range into intervals and finds the number (or proportion) of particles in each interval. (wikipedia.org)
  • One then can visualize these data in a histogram with the area of each bar representing the proportion of particles in that size bin, usually normalised by dividing the number of particles in a bin by the width of the interval so that the area of each bar is proportionate to the number of particles in the size range that it represents. (wikipedia.org)
  • Due to their size, the particles can be inhaled into the airways of the lungs in order to promote bronchodilation, relieve mucosal edema, loosen thick secretions, and/or perform the mechanism of action that is necessary for the patient. (respiratorytherapyzone.com)
  • The chemical form and its deposition site (determined by size, shape, density, and electrical charge of the nickel particles) in the lungs will affect the extent of absorption (3). (thefreelibrary.com)
  • Unlike conventional dental ceramic powder made by grinding, dental ceramic nanocrystals are formed by vaporization into individual particles. (patents.com)
  • Particle size & Particle distribution: Determine the in vivo distribution, biological fate, toxicity & targeting ability. (authorstream.com)
  • The total rate of biological export production in the ocean is probably of the order of 15 Gton C / year, and the fertilization enhancement could be at most maybe 1 Gton C / year. (realclimate.org)
  • Investigation of a New Electrostatic Sampler for Concentrating Biological and Non-Biological Aerosol Particles. (lambda-instruments.com)
  • Clinical studies on aerosol delivery during HFNC are needed, and based on the available in vitro evidence, it is not possible to make a recommendation for or against aerosol delivery during HFNC. (rcjournal.com)
  • Contrary to what the ignorant and deceptive propose, the most common chemtrail sprays have been found to consist of aluminum, barium and strontium in that order. (chemtrailsmuststop.com)
  • Aerosol cans consist of steel / aluminum containers fitted with a plastic valve designed to discharge their contents as a fine mist, spray or stream. (ehsdb.com)
  • zieglernatta catalysts scheme is limited in net deliveryArrives of conduction-, one-dimensional as diphenyl-ether, diffusion and derivative, for the problem and particle of typical fractions and new aspects high as F-centers. (taido-hannover.de)
  • Typical powders have 15-100 nm average particle sizes (APS) with specific surface areas of 30-100 m2/g. (wikipedia.org)
  • In addition to tetragonal zirconia, various dental ceramic particles and powders can be made by this approach, which can be used to form various sintered dental prostheses. (patents.com)
  • Many otherwise labile macromolecules may be stably stored as lyophilized or spray-dried powders by themselves or in combination with suitable powder carriers. (google.es)
  • Blend of powders containing pharmaceutical excipients and API can be compressed into tablets either by direct compression or after making granules by agglomeration or granulation techniques ( Fig. 1 ). (manoxblog.com)
  • Up to now, the role of particle sizes on the impact behavior of ceramic particles in aerosol deposition not yet fully understood. (springer.com)
  • They have smaller airway diameters, faster breathing rates, nose breathing filters out large particles, lower minute volumes, and spontaneous patient cooperation can be an issue. (respiratorytherapyzone.com)
  • The present invention relates to a smoking article, preferably in cigarette form, which produces an aerosol that resembles tobacco smoke. (justia.com)
  • In a method aspect of the present invention, diphenhydramine aerosol is formed by: a) heating. (google.ca)
  • To characterize the structural and dynamic properties of soft materials and small particles, information on the relevant mesoscopic length scales is required. (spie.org)
  • For two agglomerated MWCNT materials, aerosol concentrations ranged from 1700 to 64,000 nano-objects per cm 3 . (springer.com)
  • Even though a uniform coating film could not be realised as ascertained by confocal laser scanning microscopy, the deposited coatings feature notably enhanced characteristics which could be advantageous for further processing. (hindawi.com)
  • In laboratory settings, production rates can range from 10 to 300 g/hour, producing uniform, unaggregated nanoparticles with APS between 15 and 100 nm. (wikipedia.org)
  • Generally, granulation commences after initial dry mixing of the necessary powder ingredients along with the active pharmaceutical ingredient (API), so that a uniform distribution of each ingredient throughout the powder mixture is achieved. (manoxblog.com)
  • However, the normal distribution can be suitable for some aerosols, such as test aerosols, certain pollen grains and spores. (wikipedia.org)
  • The aerosol is, inter alia, suitable for the prevention, management, or treatment of a disease, symptom, or condition affecting the nose or the paranasal sinuses, such as acute and chronic sinusitis. (patentsencyclopedia.com)
  • Examples of natural aerosols are fog or mist, dust, forest exudates and geyser steam. (wikipedia.org)
  • The R2 value for Configuration 1 was 0.8599 over the range of aerosol and formulation concentrations and compositions. (inhalationasia.org)
  • We report on the characteristics of aluminium trihydrate filled poly(methyl methacrylate) composite (PMMA/ATH) coatings realised by plasma deposition at atmospheric pressure. (hindawi.com)
  • In this case, the relevant historical evolution is that of aluminum, barium and strontium used as ingredients in chemical sprays designed for use in weather modification and the atmospheric sciences. (chemtrailsmuststop.com)
  • Electromagnetic perturbation of atmospheric particles for the purpose of weather modification distinguishes the New Manhattan Project. (chemtrailsmuststop.com)
  • When large lower-atmospheric volumes of particles are heated, a high pressure zone is created. (chemtrailsmuststop.com)
  • In addition to the technical, practical, and even legal aspects of working with biothreat agents in controlled laboratory environments, bioaerosol research often involves scientific questions which can be properly addressed only under realistic atmospheric conditions. (asm.org)