A personal dosimeter for the collection of formaldehyde is improved by modifying the sodium bisulfite absorbant medium with sodium bicarbonate.

There is provided an improved energy converting system for converting low temperature heat energy into mechanical energy. The energy converting system includes an absorption system including a carrier fluid and a working medium absorbable by the carrier fluid. Evaporator means receives the low thermal energy and converts the working ...

... 5 cm ID x 1.5 m long glass receiver pipe, 0.3 cm thick graphite absorber, and gaseous (Ar) heat transfer medium. On clear days (direct solar flux ca. ...

This paper demonstrates how selective absorption of the gaseous medium can be considered by calculating generalized angular coefficients. In deriving the basic relationships the authors make use of the physical meaning of the angular coefficient. The radiation is assumed to be isotropic, the absorbing medium, ...

Fuel, fertile material and/or absorber material containing particles for fuel and/or absorber elements in nuclear reactors are coated by a process comprising introducing thermally cleavable gases into the reaction space heated to an operating temperature of a fluidized bed unit provided with a gas inlet nozzle cooled with a cooling ...

A process is described for removing sulfur oxides from a hot gas by sequential absorption of the sulfur oxides in two zones. In each zone the hot gas is contacted with an aqueous scrubbing medium which may be a solution or slurry containing an absorbent for the sulfur oxides. The absorbent is selected from the group consisting of ...

A black plate absorber divides the chamber of a solar collector into upper and lower spaces, both of which are provided with inlets and outlets for a heat exchange medium. Heat losses through the side walls are reduced by providing, between the chamber and the side walls, side conduits which have inlets and outlets for a heat exchange ...

A method is given for measuring the density or percentage proportion of gaseous and liquid phases of a gas - liquid system, particularly a coolant and/or moderator in a reactor. The method comprises placing a neutron absorbing body in the medium and measuring the neutron flux near the surface of the body. Several variants of ...

... Title : Influence of Gaseous Media on the Physicomechanical ... strain rate in all of gaseous media increases ... is found in the ammonia medium and the ...

... Title : Influence of the Gaseous Medium and Aging Temperature on the Gas Impregnation and Mechanical Properties of VT23 Titanium Alloy,. ...

This patert relates to a heat transfer system of the kind comprising at least two media which flow in opposite directions. The first medium which releases heat has an approximately constant entry temperature, and its flow velocity is altered according to the quantity of heat this medium is to supply in such a manner that its outlet temperature ...

Precision irradiance profiles have been determined for horizontally slewing high power laser beams through stationary absorbing gaseous media for the case of strong beam-medium interaction coupled with strong heating. Results are compared with the predict...

A method and apparatus for obtaining the relation between the channels ratio and the counting efficiency of a liquid scintillation standard sample includes the transfer of a gaseous quencher from one vessel by means of an absorbent transfer medium io another vessel containing the liquid scintillation standard sample and ...

A nuclear power plant with a gaseous working medium in a single cycle is described. A heat exchanger surrounds the reactor core and is enclosed in the pressure-tight core housing. This heat exchanger absorbs heat and radiation from the core and heats gas which is then compressed by a compressor. The hot compressed gas drives ...

This patent describes an apparatus fluidize a bed of fine particles. It comprises: a chamber for confining the particles in a substantially motionless gaseous medium, the chamber having a top and a bottom; a sound source mounted on the bottom of the chamber for directing an acoustic wave into the chamber to suspend the particles on the wave therein; means ...

Between a device for supplying a transparent gaseous medium and a device for exhausting the heated medium, a number of quartz glass pipes are disposed. Within each quartz glass pipe a number of glass strips, running parallel to one another, are accommodated. The adjacent glass strips are held by spacers at a distance which corresponds ...

Fuel, fertile material and/or absorber material containing particles for fuel and/or absorber elements in nuclear reactors are coated by a process comprising introducing thermally cleavable gases in the reaction space heated to above 1000/sup 0/C. Of a fluidized bed unit with the help of a gas inlet nozzle cooled with a cooling medium ...

A process for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500.degree. C. with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO.sub.2 gas. The gas is then filtered to ...

A process is described for treating organic waste materials without venting gaseous emissions to the atmosphere which includes oxidizing the organic waste materials at an elevated temperature not less than about 500 C with a gas having an oxygen content in the range of from about 20% to about 70% to produce an oxidation product containing CO{sub 2} gas. The gas is then ...

Successful experiments with the nuclear pumping of lasers have demonstrated that in a gaseous medium

... AD0692192. Title : EQUIPMENT FOR PACKAGING SUBLIMATION DRIED PRODUCTS IN A MEDIUM OF GASEOUS NITROGEN,. ...

Precision irradiance profiles have been determined for horizontally slewing high power laser beams through stationary absorbing gaseous media for the case of strong beam-medium interaction coupled with strong heating. Results are compared with the predictions of existing theoretical models concerning thermally induced lens effects in ...

This patent describes a laser system comprising: (a) an optical cavity, (b) a lasing element positioned in the cavity to generate a beam of coherent radiation at first frequency, (c) a gaseous Raman cell containing a first gaseous medium for producing a Raman interaction with the beam of coherent radiation of a first frequency, the ...

... Accession Number : AD0768743. Title : Transmissive Similarity and Scale Models in a Light Absorbing, Randomly Scattering Medium. ...

... ice particles with gaseous absorbers were estimated to determine the influence of thin cirrus layers on the outgoing long wave radiation within the ...

Nov 7, 2006 ... 2: sigma_v - Radial velocity width (sigma) of absorbing medium. ... 17: v - Radial velocity shift of absorbing medium. ...

This report summarizes the equations for exchange of linear momentum between photons and an absorbing and scattering medium. Mechanisms are not discussed, but are represented by given cross sections. Momentum exchange at discrete points, and continuously ...

The drive for an absorber rod for a nuclear reactor has a drive piston guided in a cylinder combined with the absorber rod forming an absorber unit. In order to compensate the forces exerted by the medium of the pressure vessel on the absorber unit and tending to pressure the ...

A method is described for recovering UF sub 6 from gaseous mixtures by absorption in a liquid. The liquid absorbent must have a relatively low viscosity and at least one component of the absorbent is an alkamine having less than 3 carbon atoms bonded to t...

We describe a simplified microplate most-probable-number (MPN) procedure to quantify the bacterial naphthalene degrader population in soil samples. In this method, the sole substrate naphthalene is dosed passively via gaseous phase to liquid medium and the detection of growth is based on the automated measurement of turbidity using an ...

Three types of culture experiments using paddy rice (Oryza sativa L.) were performed to examine root-uptake of (14)C in the form of acetic acid: double pot experiment (hydroponics), wet culture experiment (submerged sand medium), and chamber experiment (hydroponics and submerged sand medium). The (14)C radioactivity in the plant, ...

The direction of stationary phase in an absorbent medium, is applied a ray propagated through three successive homogeneous isotropic media, the last two are absorbent. Analytic expressions are derived for the direction of stationary phase as a function of...

The subject of radiation heat transfer in a gaseous medium has received attention recently due to the increased interest in gaseous-fueled cavity reactors. Initial studies utilized a diffusion theory approximation to the radiative transport equation. To a...

A solar collector unit is described including a corrugated absorber element coated with a reflectively selective coating; a plurality of thin, low mass, low thermal conductivity, thermal isolating elements for supporting the absorber element; and an insulation medium spaced from and generally parallel to the ...

An investigation of cooling properties of the gaseous medium was performed in the biosatellite Kosmos-936 as well as in the orbital complexes Soyuz-28/Salyut-6 and Soyuz-30/Salyut-6 with the aid of an especially constructed electric dynamic catathermomete...

Equipment for packaging sublimation dried products in a medium of gaseous nitrogen is described in detail. The theory of this operation is examined. The equipment is capable of packaging non-briquetted product at a rate of 120 number 9 can per hour, and i...

The heat exchanger described is an elongated vessel through which the gaseous medium circulated with a plurality of heat exchange tubes connected to an external cooling circuit. The gas was drawn into the vessel and exhausted by means of a blower. (C.E.S.)

A heat exchanger consisted of a vessel through which the gaseous medium was circulated in heat exchange relation with a plurality of heat exchange tubes mounted within the vessel and arranged for connection to an external cooling circuit. (C.E.S.)

This patent describes a process for refining a crude petroleum oil feed, containing varying amounts of fouling-inducing contaminants, comprising: mixing a selected volume of crude petroleum oil sample with a selected volume of solvent medium; agitating the resulting mixture to solublize fouling-determining materials in the solvent medium; removing a sample ...

We report on the detection of a population of weak metal-line absorbers in the halo or nearby intergalactic environment of the Milky Way. Using high-resolution ultraviolet absorption-line spectra of bright quasars (QSO) obtained with the Space Telescope Imaging Spectrograph (STIS), along six sight lines we have observed unsaturated, narrow absorption in O I and Si II, together ...

... Title : Influence of Mass and Heat Transfer on the Corrosion Embrittlement of Metals in a Gaseous Medium,. ... Pagination or Media Count : 4. ...

Energy distribution of high energy electrons as they slow down and thermalize in a gaseous medium is

A method of recovering uranium hexafluoride from gaseous mixtures employing as an absorbent a liquid composition at least one of the components of which is chosen from the group consisting of ethanolamine, diethanolamine, and 3-methyl-3-amino-propane-diol-1,2.

A method for absorbing hydrogen from an enclosed environment comprising providing a vessel; providing a hydrogen storage composition in communication with a vessel, the hydrogen storage composition further comprising a matrix defining a pore size which permits the passage of hydrogen gas while blocking the passage of gaseous poisons; placing a material ...

An overview of pulsed laser-assisted methods for nanofabrication, which are currently developed in our Institute (LP3), is presented. The methods compass a variety of possibilities for material nanostructuring offered by laser�matter interactions and imply either the nanostructuring of the laser-illuminated surface itself, as in cases of direct laser ablation or laser plasma-assisted treatment ...

Molecular beam scattering experiments are used to investigate collisions of a protic molecule, deuterated 1-propanol (PrOD), with an extremely basic solvent, the 51/49 mol % NaOH/KOH eutectic mixture. This powerful deprotonating medium readily absorbs PrOD from the gas phase. Nearly all PrOD molecules that thermalize at the surface of the melt enter the ...

Hydrogen sulfide is effectively removed from hot gaseous mixtures useful for industrial purposes by employing a solid absorbent consisting of silica-supported iron oxide in pellet form.

The interior radiances are calculated within an optically deep absorbing medium scattering according

A system is disclosed in which the phase of coherent light impinging on an absorbing cell is rapidly changed to produce a short amplified pulse of light.

Feb 25, 2008 ... A catalog of NASA images and animations of our home planet ... In the respiration process that absorbs gaseous carbon dioxide, trees and ...

... weight changes in metal specimens immersed in liquid F for 15 and 75 ... Metal powders absorb gaseous fluorine at -279 F. Metal tensile specimens ...

Jun 8, 2006 ... In the respiration process that absorbs gaseous carbon dioxide, ... roads tends to fan out to create a pattern akin to a fish skeleton. ...

Feb 25, 2008 ... In the respiration process that absorbs gaseous carbon dioxide, ... roads tends to fan out to create a pattern akin to a fish skeleton. ...

Mar 31, 2006 ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the ...

Apr 4, 1996 ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the ...

A method is described for recovering UF/sub 6/ from gaseous mixtures by absorption in a liquid. The liquid absorbent must have a relatively low viscosity and at least one component of the absorbent is an alkamine having less than 3 carbon atoms bonded to the amino nitrogen, less than 2 of the carbon atoms other than those bonded to the ...

The present invention is an improved method of growing a biomass in an aquaculture medium comprising enclosing the aquaculture medium containing seed amounts of a biomass in an enclosure in which the medium containing the biomass fills one-half of the enclosure and a CO/sub 2/ and air gaseous layer is above the ...

It is demonstrated that electromagnetic waves in a medium may be absorbed by neutrinos. The absorption cross section is of a resonance nature near the proper frequencies of the medium. The possibility of observing absorption of electromagnetic waves on neutrinos is analyzed. (auth)

There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous ...

There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous ...

There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous ...

There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous ...

The concept of transmissive similarity is introduced and explained. Some basic laws governing similarity in a light absorbing, randomly shallow angle scattering, macroscopically homogeneous medium are derived in terms of the absorption coefficient and the...

The aim of the report is to investigate various types of ionization chamber suitable for the measurement of absorbed dose to water for medium energy X-rays. The chamber correction factors to be applied to an ionization chamber calibrated in terms of air k...

A solar heater comprising two or more containers nested one within the other for the solar heating of a gaseous medium such as air therein. Each container is provided, near its lower end, with a solar radiation absorbing metal sheet which, when it becomes hot, rises the temperature of the air within the container causing the heated air ...

The article deals with problems of finding the amount of absorbed energy of nonscattered radiation in the total absorbed energy of radiation, and also with the error which develops during calculation of absorbed energy of radiation by using the build-up f...

... Accession Number : AD0763130. Title : Thermally Induced Nonlinear Propagation of a Laser Beam in an Absorbing Fluid Medium,. ...

... simultaneously as absorber and heat transfer medium resulted in a considerable performance enhancement against conventional solar collectors. ...

... a nonlinear absorbing medium; Width of the ... optical effects; Liquid-metal reflectors for ... PHTHALOCYANINES, *LIQUID METALS, OPTICAL FILTERS ...

... IN AN ABSORBING MEDIUM, IN: OPTICAL ... Corporate Author : JOURNAL ARTICLE-UNIDENTIFIED SOURCE. ... Pagination or Media Count : 6. ...

partial pressure in the breathing medium by absorbing or eliminating the gas that is ... partial pressure of nitrogen in the ambient breathing mixture. ...

... into the medium surrounding the cell of adenosine triphosphate (ATP),a substance which absorbs large quantities of short ultraviolet ...

Electromagnetic scattering by a fixed finite object embedded in an absorbing medium Michael I electromagnetic scattering by an object embedded in a non- absorbing medium are discussed. �2007 Optical Society field is a homogeneous plane electromagnetic wave given by ,)^iexp()( inc 0 inc 1 inc ErnrE = k .0

This report studied the kinetics of thermal decomposition of magnesium sulfite in reducing media (hydrogen, carbon monoxide, and a mixture of the two), and compared the results with analogous results of decomposition in an inert medium in order to obtain data for calculating the optimal process parameters. The kinetics of magnesium sulfite decomposition was studied by the ...

Laser interactions with a mixture of a gaseous plasma and microclusters depend strongly on the cluster-size distribution, which is usually difficult to measure. We present a concept for recovering this distribution from measurements of a time-dependent refraction index of the medium. The underlying idea is that the absorbed power in a ...

A method using principles of microdosimetry was developed for calculating the dose and hit probability to cells and cell nuclei irradiated in vitro by alpha particles. Three different geometries are currently used to irradiate cells: a mixture of cells and alpha-emitting sources in a culture medium, a gas-flow system with cells growing on a thin Mylar layer over a ...

Starting from the modelization of gaseous flow in a porous medium (flow in a capillary), we generalize the law of enrichment in an infinite cylindrical capillary, established for an isotropic linear mixture, to a multicomponent mixture. A generalization i...

... stimulate gaseous exchange Whilst the composition of the culture medium exerts a considerable influence on protoplast development, the gaseous environment also plays a crucial role in growth and ... ...

In a solar heat collector, a corrugated screen or a transverse series of perforated plates is on the underside of a heat absorber plate and heated by conduction and radiation from the absorber plate. The screen or perforated plates increase the surface area for heat transfer, especially to air, and produce turbulence of the heat transfer ...

This dissertation presents spectroscopic studies of HS1946+7658, HS1700+6416, and H1821+643, three radio-quiet QSOs at redshifts of 3.05, 2.72, and 0.297 respectively. High resolution (20 km s-1) high signal-to-noise spectroscopy of HS1946+7658 and HS1700+6416 yields the following results. (1) Several of the C IV absorbers are narrow implying that T < 50000 K, and therefore ...

This patent relates to the transfer of energy in a traveling electromagnetic wave to direct-current electrical energy in a gaseous medium. The traveling wave is generated by means of a radio-frequency oscillator connected across a capacitance-loaded helix wound around a sealed tube enclosing the gaseous ...

A process for the removal, from gaseous mixtures of a desired component selected from oxygen, iodine, methyl iodide, and lower oxides of carbon, nitrogen, and sulfur is described. The gaseous mixture is contacted with a liquid fluorocarbon in an absorption zone maintained at superatmospheric pressure to preferentially absorb ...

The selective removal of H/sub 2/S gas from a normally gaseous mixture containing H/sub 2/S and CO/sub 2/ is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary aminoether alcohol having a cumulative -E /SUB s/ value (Taft's steric hindrance constant) ...

The selective removal of H/sub 2/S gas from a normally gaseous mixture containing H/sub 2/S and CO/sub 2/ is accomplished by contacting the gaseous mixture with an absorbent solution comprising a severely sterically hindered secondary amino compound having a cumulative -E /SUB s/ value (Taft's steric hindrance constant) ...

A light weight, low cost, non-corroding, high efficiency solar energy collector is comprised of an absorber plate which is adapted to absorb solar energy in the form of heat and to transfer by conductance the heat to a heat exchange medium. The absorber plate has disposed therein a highly heat conductive filler ...

Absorbance measurements are accomplished by placing the sample inside the cavity of a laser which is impulsively pumped. If the laser contains an appropriate gain medium, there will exist a measurable time delay between pumping and the onset of lasing. It is shown that this time delay is related to the optical losses in the laser cavity. Increased time ...

A method for the separation of gaseous mixtures such as air and for producing medium purity oxygen, comprising compressing the gaseous mixture in a first compressor to about 3.9-4.1 atmospheres pressure, passing said compressed gaseous mixture in heat exchange relationship with sub-ambient temperature ...

A solar collector for heating a gaseous heat transport medium comprises an open-top housing provided with a transparent cover layer formed of a plurality of adjacently arranged, substantially mutually contacting, sealed and evacuated transparent cover tubes. The inner surface of each cover tube is provided with a selective absorption layer over the half ...

Liquid radioactive wastes are concentrated to form a pasty radioactive concentrate by evaporation below the boiling point of the waste by injecting a hot gaseous medium tangentially in a vortex stream over the entire surface of the liquid waste, thereby entraining vapor evaporated from the liquid surface, removing the gaseous ...

A mill recirculation system includes pulverizer means classifier means and burner means as well as a preestablished fluid flow path by which the pulverizer means and the classifier means are interconnected in fluid flow relation with the burner means. In accord with the mode of operation thereof, a separation is had at the classifier means of the stream of the gaseous ...

Cooling of a gas-permeable loose material having highly temperature-dependent coefficient of thermal conductivity is performed in a shaft-shaped chamber with use of a gaseous cooling medium so that the loose material is fed from above downwardly in a counter stream against a stream of the gaseous medium supplied ...

A direct fired system includes pulverizer means classifier means, burner means as well as a defined fluid flow path that serves to interconnect the pulverizer means and the classifier means in fluid flow relation with the burner means. In accord with the mode of operation thereof, at the classifier means a separation is had of the stream of the gaseous ...

A direct fired system includes pulverizer means, classifier means, burner means, as well as a defined fluid flow path that serves to interconnect the pulverizer means, and the classifier means, in fluid flow relation with the burner means. In accord with the mode of operation thereof, at the classifier means, a separation is had of the stream of the gaseous ...

A novel method of obtaining the reflection function for a medium bounded below by an imperfect specular reflector is detailed by considering the equivalent processes taking place in a fictitious medium with only absorbing boundaries. This medium is endowe...

A thin absorbing film is bonded onto at least certain surfaces of a solid state laser gain medium. An absorbing metal-dielectric multilayer film is optimized for a broad range of incidence angles, and is resistant to the corrosive/erosive effects of a coolant such as water, used in the forced convection cooling of the film. Parasitic ...

A thin absorbing film is bonded onto at least certain surfaces of a solid state laser gain medium. An absorbing metal-dielectric multilayer film is optimized for a broad range of incidence angles, and is resistant to the corrosive/erosive effects of a coolant such as water, used in the forced convection cooling of the film. Parasitic ...

The current status of the technologies of gaseous fuels utilization in highway transportation vehicles is reviewed. The use of natural gas included as well as liquefied petroleum gases (LPG). The results of engine and vehicle testing using gaseous fuels are presented and discussed. Topics explored include fuel properties, storage tank materials ...

The patent application describes a method and apparatus for laser welding wherein the weld zone is surrounded with a pressurized gaseous medium, the pressure and composition of which are correlated to control the penetration and porosity of the resulting ...

A light-driven phase shifter is provided for modulating a transmission light beam. A gaseous medium such as argon is provided with electron energy states excited to populate a metastable state. A tunable dye laser is selected with a wavelength effective to deplete the metastable electron state and may be intensity modulated. The dye laser is directed ...

... All but one of the container connections were the Autoclave Engineers medium pressure type (30,000 psi), a metal-to-metal connection. ...

Sep 5, 1996 ... thermionics A field of electronics that uses electrical current passing through a gaseous medium (vacuum tube) instead of a solid state ...

... Page 32. 16 ... electrodes. In the gaseous medium such as xenon or argon, the high electric field regions can cause free electrons to ...

Aug 8, 2011 ... Email address: robert.h.rubin@nasa.gov. Division: Space Science Branch: Astrophysics. I study gaseous nebulae and the interstellar medium. ...

A method for the removal of iodine from large gas volumes is described. The gaseous medium is heated to a temperature not exceeding 400 deg C. Water vapor is then added to the medium in approximate amounts of 1 lb/cu ft of the medium. The medium is then passed through a porous copper ...

Using the state-of-the-art cosmological hydrodynamic simulations of the standard cold dark matter model with star formation feedback strength normalized to match the observed star formation history of the universe at z= 0-6, we compute the metal-enrichment history of the intergalactic medium (IGM). Overall we show that galactic superwind (GSW) feedback from star formation can ...

Nitric oxide, NO, and nitrogen peroxide, NO/sub 2/, are facilely removed from gaseous admixtures comprising the same, together with gaseous oxygen, advantageously in a plate tower for the commercial production of nitric acid, by countercurrently oxidizing/absorbing said gaseous feedstream in aqueous solution, in a ...

This study proposes a simple estimation method for the albedo, which is one of the radiative properties of scattering and absorbing media. The method enables us to determine the albedo from the measured emittance of the medium without a complicated inverse analysis, using the relation that the emittance of the optically thick medium ...

The patent describes a pulsed laser wherein emission is generated from a gaseous gain medium, the gain medium being pumped by at least one traveling high voltage electromagnetic pulse having a duration too short for inducing formation of an ionization dis...

We examine theoretically and experimentally an imaging scheme that uses the transverse intensity profile of the scattered light to reconstruct the locations of absorbers embedded in a turbid medium. This method is based on an a priori knowledge of the scattered light patterns associated with a single absorber that is located at various ...

It is found that a laser with an anisotropic cavity containing an absorbing medium may exhibit no response of the output radiation intensity to the modulation of the optical density of the absorbing medium in the presence of a magnetic field. The conditions when this effect may be observed are determined, and its ...

The laser with saturable absorber (LSA) with level structures in amplifier and absorber media has been modeled in a rate-equation approach introducing memory functions. This approach has been applied to vibrational structures in a CO{sub 2} medium and rotovibrational structures in molecular absorbers. Experimental ...

A solar heating device is provided for heating a liquid used in the device as the refractive medium. A lens and a heat absorbing member carry the liquid and are connected together so that the liquid may be communicated therebetween. The lens concentrates the solar energy on the heat absorbing member when the lens is full of the liquid, ...

An excimer laser is described comprising: a gaseous gain medium comprising a buffer gas, xenon, and a fluorine donor gas; means for exciting the gain medium to form a quantity of the xenon fluoride excimer in the excited C state; and means for resonating or amplifying xenon fluoride C approaches A radiation of the 450-520 nm ...

A method is provided of optimizing, within limits imposed by a heating medium from the surface of an ocean and a cooling medium from an ocean depth, the energy supply capability of a gaseous working fluid which is expanded from a charged high pressure level to a spent low pressure level to provide available energy, the method ...

In a flowing gas laser system for the production of an optical beam and including a channel having a flow axis in a direction along which the velocity of a gaseous working medium is increased to permit stimulated emission of radiation from the energy levels of the medium, nozzle means for aerodynamically expanding the ...

In a system for the separation of sour gases especially hydrogen sulfide and carbon dioxide from a raw gaseous mixture e.g., hydrogen-containing in order to form a purified gaseous mixture, comprises: scrubbing the gaseous mixture in a first scrubbing stage with a physical scrubbing liquid e.g., methanol having a higher ...

...2010-07-01 2010-07-01 false Dynamometer test run, gaseous emissions. 86.237-08...Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures § 86.237-08 Dynamometer test run, gaseous emissions. (a) The...

...2009-07-01 2009-07-01 false Dynamometer test run, gaseous emissions. 86.237-08...Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures § 86.237-08 Dynamometer test run, gaseous emissions. (a) The...

Fourier transform infrared (FTIR) photothermal beam deflection (PBD) spectra were recorded over the 3900-4500/cm range of solids absorbing weakly, medium-strongly, strongly, and very strongly in various spectral regions, as well as of carbons that absorb ...

on the polarization effect is small if the particle itself is also strongly absorptive even if the host medium in an absorbing medium, the effect of host absorption on the phase matrix elements associated with polarization of the particle if the size parameter is small. For water-coating soot and hollow ice spheres, it is shown

The methods to determine the absorbed dose to water for low and medium energy photons were studied. Large differences between the results of these methods exists. So, a research proposition has been made to explain these differences. The goal of this rese...

Gaseous hydrocarbon streams such as natural gas streams are acid gas depleted and reduced to pipeline specification moisture content using a single absorbent: a particular amino ethyl ether; in two steps providing in sequence, counter-current multi-stage absorption and at least one dehydrating contact stage with fresh absorbent at low ...

A gaseous suspension of small particles is considered as a medium to directly absorb concentrated sunlight to yield a high-temperature gas for electricity production or industrial processes. A receiver employing a directly irradiated gas-particle mixture has several advantages over conventional blackened tube solar receivers. The ...

Light-emitting diodes (LEDs) operating in the 4.4-4.8-?m wavelength range have been developed for detecting the presence of carbon monoxide (CO) in air. The proposed LEDs are based on InAsSbP/InAsSb heterostructures with InAs0.85Sb0.15 active region, which were grown by metalorganic vapor-phase epitaxy. The electrolumuinescent properties of LEDs have been studied. The output power of LED operating ...

Heat exchange is effected in a simple and economical manner by allowing natural flow, i.e., without mechanical compressors, pumps, etc., of a heat exchange fluid such as a conventional refrigerant liquid between two heat exchangers which are exposed to air at different temperatures. The two heat exchangers, which may conveniently take the form of fin-tube heat exchangers, for example, are arranged ...

Thermal blooming is considered for the cases of with and without wind transverse to the beam propagation from the point of view of fluid dynamics of a compressible gaseous system and the coupling of this with geometric optics using eikonal formalism. Full compressible fluid dynamic relationships are developed (first-order perturbation approximation) with kinetics of energy ...

Diamond coatings were deposited by synergy of the hot filament CVD method and the pulse TEA CO2 laser, in spectroactive and spectroinactive diamond precursor atmospheres. Resulting diamond coatings are interpreted relying on evidence of scanning electron microscopy as well as microRaman spectroscopy. Thermal synergy component (hot filament) possesses an activating agent for diamond deposition, and ...

This disclosure describes the process for producing an apparently amorphous porous boron carbide having a mean particle size less than 1 micrometer in diameter, effective pore sizes on the order of 30 Angstrom units, and surface areas on the order of 100 m/sup 2//g and greater. The process involves the gaseous phase reaction of acetylene (C2H2) with diborane (B2H6). The ...

This review summarizes the role of gaseous carbon in the Galactic interstellar medium (ISM) as a tracer of its different phases and as a primary gas coolant. Carbon in one of its many gaseous atomic and molecular forms has proven to be critical to our ability to trace the chemical and physical states of the cloud. This review ...

A method of removing radioactive iodine from a gaseous medium is given in which the gaseous medium is adjusted to a temperature not exceeding 400 deg C and then passed over a copper fibrous pad having a coating of cupric sulfide deposited thereon. An ionic exchange on the pad results in the formation of ...

The problem of spontaneous emission of an excited atom inside a random medium formed by randomly distributed dipoles is theoretically discussed by explicitly calculating the decay rate of the atom. After averaging over all the density fluctuations of the medium, we obtain an analytical expression of the decay rate in the low-density limit, which shows that ...

A rhodamine 6G-DODCl dye solution was used as the gain medium and the saturable absorber was contained in a variable-gap dye cell in contact with a high reflectivity mirror.(AIP)

address the general issue of resolving the wave vector in complex electromagnetic media including nega on kx, , and . For absorbing media, the wave amplitude at the in- finities obviously has to disappear. This is the conventional case of a propagating wave in a positively refracting absorbing medium. Here + 0 implying

A radiation receiver which includes a hollow body having an opening for the inlet of radiation, and a ceramic absorber arranged within the hollow body adapted to absorb the radiation energy received through the opening and to deliver it to a heat carrier medium in the form of thermal radiation.

A dispersion of very small absorbing particles forms an ideal medium to absorb radiant energy, transform it to sensible heat, and efficiently transfer the heat to a surrounding fluid. Because the absorption occurs within the fluid, the temperature drops t...

The report describes a simple method without the use of codes which has been developed to estimate the thermal blooming of a high-power focused laser beam propagating through an absorbing medium. Continuous wave laser beam propagation through an absorbing...

A glass heat pipe is adapted for use as a solar energy absorber in an evacuated tube solar collector and for transferring the absorbed solar energy to a working fluid medium or heat sink for storage or practical use. A capillary wick is formed of granular...

Numerous embodiments and related methods for generator-absorber heat exchange (GAX) are disclosed, particularly for absorption heat pump systems. Such embodiments and related methods use the working solution of the absorption system for the heat transfer medium.

The scattering formulation for a coated infinite cylinder in an absorbing medium is presented in this paper. The cylinder is subjected to an arbitrarily polarized plane wave propagating in a general direction at the cylinder. The refractive index and magnetic permeability of the host medium, as well as those for the core and coating of ...

Resistance of fullerenes in air is investigated under standard conditions. The general problems of resistance of compact nanosized particles in gaseous media are solved at different temperatures and pressures. The resistance of the nanosized particle moving in a gaseous medium is calculated using the deterministic approach, direct ...

In an attempt to model the initiation of a coal-gas outburst, the author discusses the mechanics of a porous rock medium in which the capillaries are filled with a gaseous substance. This gas can undergo capillary condensation, and thus the medium exists in a 3-phase state of solid, liquid and gas. The effect of a shock wave ...

A mill recirculation system that is operative for purposes of effecting the pulverization and firing of solid fuels, while yet possessing all of the desirable features of a direct fired system. The subject system includes pulverizer means classifier means and burner means as well as a preestablished fluid flow path by which the pulverizer means and the classifier means are interconnected in fluid ...

Acid gases, such as CO2, can be extracted from a gaseous feed stream by contacting the exhausted inlet gas with an aqueous solution of 3-Amino-1,2 Propanediol, separating the regenerated feed stream from the aqueous amine solution and the acid gases disso...

Current livestock production techniques release a large variety of volatile organic compounds to the atmosphere. This release results in complaints due to their odorous nature and has been identified as a source of surface water pollution as these compounds are absorbed from the ...

A simple, inexpensive system for purifying and storing pure fluorine is described. The method utilizes alkali metal-nickel fluorides to absorb tank fluorine by forming nickel complex salts and leaving the gaseous impurities which are pumped away. The comp...

A mass and heat exchanger includes at least one first substrate with a surface for supporting a continuous flow of a liquid thereon that either absorbs, desorbs, evaporates or condenses one or more gaseous species from or to a surrounding gas; and at leas...

In the selective removal of sulfur compounds, e.g., H/sub 2/S, COS, from moist gaseous mixtures, comprising scrubbing the gaseous mixture in a column at a temperature below 0* C., with toluene or xylene as the scrubbing liquid, and prior to the scrubbing stage, contacting the moist gaseous mixture with liquid methanol before the ...

This paper presents the results of study of the effect of different factors on the magnitude of the saturation parameter of losses introduced into the laser cavity by the anisotropy of the absorbing medium as well as the corresponding change in the intensity of the generated radiation at the frequency of the absorption line. The single-frequency stationary ...