... traps. The secondary centers then become populated and are available for additional absorption and photorefraction. Our ...

... ADD145373. Title : Oxidation Behavior of Ni Aluminides Using X-Ray Absorption Spectroscopy. Descriptive Note : Journal article,. ...

Effects of Water Absorption before Molding on Degradation Behavior of Hemp Fiber Reinforced Composites under Hot Water

... the direct compression of nanoporous frameworks; and (9) developed models to better understand the behaviors of pressurized nanofluids. ...

... OF RADIATION BELTS AND ANOMALOUS ABSORPTION OF COSMIC RADIO NOISE IN THE ZONE OF THE POLAR AURORA DURING THE ...

... behavior of the plasma. A homogeneous slab model of a hot plasma is used in a theoretical study of these collective effects. ...

... Springbok compensate for thin pelage in relation to heat gain behaviorally, reducing their absorption of solar radiation by ... ...

... similar to the characteristic absorption of conducting n-type ... Hall effect, and optical absorption per- ... C in an "Instron" tensile machine equipped with a ...

... Fig.3 The energy absorption isotherms: (a) the first loading-unloading cycle; (b) the second, the third, and the fourth loading-unloading cycles ...

The moisture absorption/desorption behavior of resin matrix composites was mathematically modeled by

A method for growing large area, thin, single crystal platelets of TNT is reported. The optical absorption properties of these crystals were studied, and dichroic behavior was observed. The absorption edge is approximately 3.1 eV and is tentatively assign...

The infrared (ir) absorption of the quasi-two-dimensional paired boson superconductor is calculated in the dirty limit. Compared with the Mattis-Bardeen behavior of a conventional superconductor, we find that the ir absorption of the boson superconductor has a weaker frequency dependence and a stronger temperature dependence.

The optical absorption of sapphire was measured calorimetrically in the wavelength interval from 1.32 micrometer to 0.35 micrometer. The data show reasonably linear behavior in a plot of the natural logarithm of the absorption due to residual chromium ion...

... 10.1644/07-MAMM-A-327.1 Water Absorption of the Fur and Swimming Behavior of Semiaquatic ... most species of the group. We comp...

In China, study on the behavior of Cs-137 in agricultural environment was begun in 1960. The absorption, accumulation, and distribution of Cs-137 in plant, the relationship between absorption of Cs-137 by plant and contaminating way and form, the Cs-137 r...

... 03-109R Quinclorac: Soil Behavior and Foliar vs. Root Absorption by Torpedograss (Panicum repens)1WALKER WILLIAMS, GLENN WEHTJE,...

... 2 CGA-362622: Soil Behavior and Foliar Versus Root Absorption by Torpedograss (Panicum repens)1WALKER WILLIAMS, GLENN WEHTJE, ....

A theoretical study is presented of the effect of matrix block shape and matrix block size distribution on liquid imbibition and solute absorption in a fractured rock mass. It is shown that the behavior of an individual irregularly-shaped matrix block can...

A new method for fission-track detection by means of absorption spectroscopy is presented. Application of the method to the investigation of the annealing behavior shows the following result: Annealing of fission tracks in apatite crystals containing fossil tracks causes a decrease of the characteristic absorption due to a diffusion ...

... Title : Near Ultraviolet-Visible-Near Infrared Optical Behavior of ... OXYGEN, GERMANIUM, ABSORPTION SPECTRA, ULTRAVIOLET SPECTRA. ...

... Title : BACKGROUND BEHAVIOR IN WINGS OF CARBON DIOXIDE ATMOSPHERIC ABSORPTION BAND, IN: ARPA-TIO-75-11, P216-238. ...

Study of the Corrosion. Behavior of Primer Coated. 22 19-T8 7 Aluminum ..... by atomic absorption spectroscopy for zinc, chromium and aluminum content. ...

... A MOLTEN POOL OBEYED A LAW OF SQUARE ROOT WITHIN P ... HYDROGEN ABSORPTION IN THE ARC WELDING, IF IT CORRECTED USING ...

... The spectroscopic absorption of an aromatic compound on a ... behavior of aromatic compounds on soils at the ... to be characteristic of para-substituted ...

... Figure 4. Photocurrent spectra of Chl a on ... by the dissociation equilibrium of protons at the ... band of chlorophyll a absorption spectrum, ie exciting ...

... University Machine Shov. ... 53 IIL The Optical Constants and Absorption Coefficients of ... intensity; the intensity and directiomal characteristics of the ...

... of dislocation-density partial and total blockage and absorption at GB interfaces, will be determined and related to behavior at the grain and ...

... Pagination or Media Count : 38. ... designed to characterize the thermal and gasdynamic behavior of laser-sustained plasmas in flowing argon. ...

... The products of corrosion in the solution were analyzed by atomic absorption spectroscopy, and the composition of the surface layer of the steel ...

... absorption. It was found that the creep deformation was highly affected by the solubility controlled gas, carbon dioxide. ...

... ABSORPTION, *MAGNETIC MATERIALS, *COBALT COMPOUNDS, *NICKEL COMPOUNDS, *THORIUM COMPOUNDS, REPRINTS, MAGNETIC ...

... At respective resonance frequencies in the E parallel L orientation for both man and laboratory rodent, maximum power absorption is found in the ...

If divalent cation impurities are incorporated in AgBr crystals containing divalent anion impurities, an optical absorption is found close to the intrinsic absorption edge, consisting, at a temperature of -17o deg C, of several bands. The characteristic behavior of this absorption is partly opposite to that ...

Large differences in absorption behavior are caused by changing the root to solution ratio in absorption experiments. Aeration ordinarily is not a factor. Changes in pH as a result of absorption activity cause a reduction in absorption rates. This factor may be eliminated by ...

Unexpected absorption in the real atmosphere in the window from 840 to 890 nm has been clearly observed through measurements of direct solar spectral irradiance under clear, cloud-free skies. This absorption is not predicted by the known theoretical models. The cause of this apparent absorption may be due to the presence of high thin ...

The effects of absorption of low concentrations of inorganic lead (7439921) (Pb) on worker behavior and neurologic function were studied. For one year, exposed and unexposed workers were subjected to performance and behavioral test measurements, neurologi...

-6359 ABSTRACT A computational approach to simulate the crushing behavior of random fiber composites is presented into the constitutive relation. Based on the computational algorithms, crushing behavior of composite tube is simulated code, for simulating the damage evolution and crushing behavior of random fiber composites. Material

Near edge x-ray absorption fine structure (NEXAFS) and infrared reflection-absorption spectroscopy (IRRAS) have been used to study the orientational behavior of thin films of poly(3-methylthiophene) electrochemically polymerized on a platinum surface. Cle...

Microwaves can produce sensations of warmth and sound in humans. In other species, they can serve as cues and can disrupt ongoing behavior. These actions appear to be due to heat produced by energy absorption. The rate of absorption depends on the microwave parameters and the electrical and geometric properties of the subject. At low ...

A correlation function approach is employed to calculate the multiphonon absorption in semiconducting crystals due to higher order electric moments, in the presence of anharmonicity. The authors found an exponential-like behavior for omega/omega sub O muc...

... herbicide efficacy. Research has demonstrated the differences of root absorption versus foliar absorption for sulfonylurea herbicides for control ... 2003. CGA-362622: soil behavior and foliar versus root...

The article examines the pharmacokinetic behavior of environmental chemicals and drugs that are altered during aging. Absorption may be the least sensitive parameter to age-related perturbations. However, pulmonary and dermal absorption, which are both de...

Studies were conducted on the absorption and desorption of exp 239 Pu, exp 106 Ru, exp 99 Tc, exp 60 Co, and exp 54 Mn in equilibrium with seawater. Equations are developed for absorption and desorption of trace elements by various sorbents. Samples of oc...

The improvement of absorption and hydrodynamic efficiency was experimentally investigated by using a double-foil target with a pinhole for laser beam. The behavior of the accelerated target is reasonably consistent with a cannonball acceleration model. Th...

The objective of this study was to acquire detailed acoustic data and limited flow visualization data for numerical validation of a new model of sound absorption by a very narrow rectangular slit backed by a cavity. The sound absorption model is that bein...

The objective of the study reported here was to acquire detailed acoustic data and limited and flow visualization data for numerical validation a new model of sound absorption by a very narrow rectangular slit backed by a cavity. The sound absorption mode...

... injury and subsequent yield reduction because of substantial root absorption of CGA-362622. Other research has shown greater ... 2003. CGA-362622: soil behavior and foliar versus root absorption by torped...

Past experiments of this project utilizing three separate and distinct radiation facilities have determined the whole body and distribution within the body of resonant electromagnetic power absorption for both man models and laboratory rodents. The absorp...

The complex formation between uranium(VI) ion and chloride ion in aqueous solution can be confirmed by UV-Vis absorption spectroscopy and differential pulse polarography. Absorption spectra and differential pulse polarograms of uranyl ion in hypochlorite/...

Several alternative aqueous absorbents were experimentally evaluated for use in absorption/stripping processes for flue gas desulfurization. The pH behavior of citrate, basic aluminum sulfate, ethylenediamine, and adipate buffers was measured and modeled....

The paper reports on the anomalous behavior that the resonant-mode infrared absorption exhibits under the application of uniaxial or hydrostatic stress. The main feature of the effect consists in the large shift that the peak frequency suffers under the a...

Optical absorption and emission behavior have been investigated in aluminosilicate sol-gel materials containing the sodium salt of tetra-4-sulfonatophenylporphyrinatocopper(II). Concentration-dependent nonlinear absorption was observed in the porphyrin-doped specimens. Up-converted optical emission from the second excited doublet band ...

Experimental results of a buried heterostructure cw laser with a controllable amount of saturable absorption introduced by a segmented contact are presented. With no absorption the laser is stable and has a linear output characteristic. Increasing of the saturable absorption by changing the pump current through the control segment ...

The structural characteristics and water absorptions behavior agave fibers were investigated over a range of temperature by using XRD, IR, TG and gravimetric methods. Three distinct thermal processes were observed during heating the fiber in the temperature range 310-760 K in air, oxygen and nitrogen invariably. The cellulose structures of the fibers were ...

... 2003) CGA-362622: Soil Behavior and Foliar Versus Root Absorption by Torpedograss (Panicum repens). Weed Technology 17:2, ... ...

... The utility of infrared reflection-absorption spectroscopy (IRAS) for linking the structural behavior of absorbates on ordered metal surfaces in ...

... Nanoporous materials functionalized (NMF) liquids can be utilized to ... cells in a regular cellular material so as ... The reactor was kept in a water bath ...

... CSASivian L.J. 1947. High frequency absorption in air and other gases. Journal of the Acoustical Society of America 19: ... ...

This paper reports a theory of integrating spheres filled completely with absorbing and scattering material. The development is oriented toward describing the behavior of such an integrating sphere when it is used as a spectrophotometer. The output ratio ...

... Instead of whole-body energy absorption as a predictive index of an animal's reaction to microwave irradiation, one might consider local energy ...

Stellar spectra are analyzed to determine nonthermal processes for cool stars. A shock wave crossing model is supported by a study of the behavior of absorption and emission spectra. The shock waves are attributed to atmospheric kinetics. Circumstellar sp...

The solubility behavior of krypton and xenon in dichlorodifluoromethane was investigated for the Consolidated Fuel Reprocessing Program (CFRP) in support of the fluorocarbon absorption process. The solubility data derived from solute radioisotopes had unc...

The temporal behavior of the high velocity, relatively narrow absorption components in C IV, Si III,

Clostridium thermoaceticum contains a porphyrin which, based on visible absorption and /sup 1/H nmr spectra as well as on chromatographic behavior, has been identified as uroporphyrin III.

Clostridium thermoaceticum contains a porphyrin which, based on visible absorption and /sup 1/H NMR spectra as well as on chromatographic behavior, has been identified as uroporphyrin III.

Interaction of high power laser radiation with metals during welding; and transient absorption behavior of metals during laser welding are discussed.

... Oxidation behavior of SUS430 stainless steel in moist atmospheres has been investigated by infrared reflection absorption spectroscopy at 873 K ...

... We termed the imaging technique Magnetic Resonance Microwave Absorption imaging or ... system behavior (which we later traced to the root of the ...

The authors synthesize and quantitatively and structurally analyze the blue form of lutetium octakis(4-tert-butyl)diphthalocyanine and assess its absorption spectra and electrochemical reduction and oxidation behavior.

... 2003. CGA-362622: Soil behavior and foliar versus root absorption by torpedograss (Panicum repens). Weed Technol 17:366� ... ...

Figure 2 Effect of absorption and scattering on the ..... 4Spuckler, C. M. and Siegel, R., Refractive Index and Scattering Effects on Radiative ...

The behavior of nonforward matrix elements of current commutators near the light cone is discussed. In momentum space this is equivalent to an investigation of the absorptive part of the nonforward Compton scattering in the scaling (Bjorken) limit. Starti...

... as oxides and nitrides, which allow absorption of RF ... but also the potential for coating degradation and ... The chiller was connected to the test stand ...

... Conducting Polymer Membranes for Gas Separation", UC ... of hysteresis in the absorption-desorption isotherm (measured with a quartz microbalance ...

... Social Behavior Soil Absorption Soil Bulk Density Soil Chemistry Soil Color ..... FYR Madagascar Malawi Malaysia Maldives Mali Malta Marshall Islands ...

and about 470K to follow the alternating absorption and desorption behavior of the ... from these beds to determine the extent of degradation of the compressor ... nominal temperature of 20 K with a cooling power of l W. The LFI will directly ...

Results of experiments on the absorption of niobium in a hot, dense plasma are presented. These results represent a major step in the development of absorption techniques necessary for the quantitative characterization of hot, dense matter. A general discussion is presented of the requirements for performing quantitative analysis of ...

The absorption of 1.06 ..mu.. light focused on small C/sub 8/H/sub 8/ discs has been measured in the intensity range of 10/sup 15/ - 10/sup 17/ W/cm. The data confirms the importance of collective plasma effects in determining the absorption of intense light. The measured absorption efficiencies are in the range of 30 to 40 percent, ...

Failure behavior results are presented on some of the crash dynamics research conducted with concepts of aircraft elements and substructure which have not necessarily been designed or optimized for energy absorption or crash loading considerations. To ach...

The changes in the elastic behavior of composites due to the reversible moisture absorption can be predicted when the matrix properties (E sub m and Nu sub m) have been determined as a function of temperature and moisture concentration. The composite is a...

The purpose of the research was to study the morphologic development, survival, and behavior of chum, coho, and chinook salmon, and steelhead trout alevins from hatching through yolk absorption. The ability of alevins to respond adaptively to conditions o...

are formed, with the polythiophene chains in an extended conformation. The reversible thermochromic effect of the thiophene ring electronic absorption spectra. This behavior is analogous to the events in the thermochromic delocalization, with resultant enhanced electronic and optical behavior. A thermochromic effect observed for poly

The influence of low temperature on the stress-strain behavior, fracture strength, and energy absorption in the dynamic fracturing of a limestone and a granite was determined by experiments conducted with a special low temperature split-Hopkinson pressure...

Failure behavior results are presented from crash dynamics research using concepts of aircraft elements and substructure not necessarily designed or optimized for energy absorption or crash loading considerations. To achieve desired new designs incorporat...

We have studied the aqueous solution synthesis of divalent tin oxide (SnO) nanostructures, changes in their optical absorption behavior, and their photoelectrochemical properties. A number of SnO nanostructures including sheets and wires, and their composite morphologies were obtained in aqueous solution containing urea at low temperatures. Parallel ...

A program to investigate the x-ray absorption behavior of materials subjected to high pressures has been continued. Of particular interest has been the EXAFS (extended x-ray absorption fine structure) and XANES (x-ray absorption near edge structure). Mate...

The infrared optical constants (index of refraction and extinction coefficient) and absorptance for doped bulk n-Si are calculated for electron concentrations as high as 1.3 x 10(20) cm(-3). These calculations are based on the generalized Drude-Lorentz approximation and predict nonmonotonic behavior of absorption as a function of ...

The effect of various conditions of optical bleaching and thermal annealing on the electron spin resonance and optical absorption of additively colored KCl was studied. With extended optical bleaching the resonance linewidth narrows and the resonance saturates less readily. The presence of R, M, N, or R' centers is unrelated to the dominant features of the ...

Describes interactive, computer-graphics program emulating behavior of high resolution, ultraviolet-visible analog recording spectrophotometer. Graphics terminal behaves as recording absorption spectrophotometer. Objective of the emulation is study of optimization of the instrument to yield accurate absorption spectra, including ...

Combined measurements of X-ray absorption and fluorescence have been performed in jets of pure and diluted argon gas to demonstrate the feasibility of using X-ray fluorescence to study turbulent mixing. Measurements show a strong correspondence between the absorption and fluorescence measurements for high argon concentration. For lower argon concentration, ...

The Optical transmission and UV-VIS absorption spectra have been recorded for different proportion of PVA and PAM. Transmittance, absorbance, and reflectance of pure and blends polymer are investigated. Optical properties such as the absorption coefficient, optical (Direct/Indirect) energy gap, absorption edge, Refractive index, ...

Soft X-ray absorption spectra of typical alkali chlorides, KCl and NaCl, were observed by using as a continuous background the synchrotron radiation from the 750 MeV electron synchrotron in the Institute for Nuclear Study, Tokyo. The L2,3-absorption spectrum of Cl- in these chlorides has been obtained. The spectrum shows one or two sharp ...

Propagation of a Gaussian beam in an absorbing waveguide is analyzed for cubic�quintic and saturable media taking into account both linear and nonlinear absorption. A "collective variable approach" technique, based on trial functions, is used to solve the general nonlinear Schrodinger equation. In the absence of losses, we construct a diagram which defines regions of ...

A bibliographic study of high diffusion composite materials is presented with regard to static and dynamic behavior under shock. The dynamic behavior under vibration conditions was investigated by considering the time evolution of the dynamic modulus of e...

The effect of presintering on the sintered density of UO/sub 2/ compacts, the effects of sintering on the density. corrosion behavior of presintered and sintered compacts, and the tests for water absorption of U/sub 2/ I compacts are evaluated. (J.E.D.)

absorption measurements which elucidate the behavior of excited c60 in PS and PVCz are presented. Transient absorption decay recorded at 910 (0)and 740 nm (0):(A) Cm-doped PS film and (B) Cho-doped PVCz)Film. The photochemical events in PVCz film doped with c60 were probed by recording time- resolved transient ...

Optical behavior analogous to electromagnetically induced transparency and absorption is observed in experiments using coupled fused-silica microspheres. This behavior results from interference between coresonant whispering-gallery modes of the two spheres. Coupled-resonator-induced transparency and absorption are ...

The effects of anomalous dispersion (resonance) on multiple reflection of x rays and their interference in crystals at atomic absorption edges are studied. Intensity ratios of two inversion-symmetry-related multiple diffractions at or near absorption edges exhibit highly phase-sensitive profiles with strong asymmetric characteristics, unlike those far from ...

Experiments show strongly enhanced absorption of ultrashort superintense laser beams in clustered matter in the so-called collisionless regime. Despite numerous particle in cell simulations confirming this behavior, the underlying physical processes are not sufficiently clear. The familiar linear resonance absorption does not apply as ...

In a continuation of studies on the intestinal absorption of fats in subjects irradiated with Co/sup 60/ in the abdominalpelvic region, the absorption behavior of oleic acid labeled with I/sup 131/ was studied. Unlike the case of triolein, a fair percentage of subjects who did not reveal any changes in the ...

Intestinal absorption of Cd is one of the main channels of Cd entry into the body leading to systemic toxicity. When Cd is absorbed, it first comes into contact with the gastrointestinal mucosa, particularly the duodenum mucosa. Therefore, the mucosal behavior of Cd is one of the most important factors, not only for determining the ...

We theoretically and numerically study the absorption effect and the heat generation in plasmonic metamaterials under light radiation at their plasmonic resonance. Three different types of structures, all possessing high-performance absorption for visible lights, are investigated. The main aim of this work is to present an intuitive and original ...

The spectra of the absorption coefficients of external radiation by basic chromophores of human skin, such as melanin, basic tissue, and blood (including oxy- and deoxyhemoglobin), are studied in the wavelength range of 300-1000 nm. For estimates, analytical methods of the theory of light transfer are used, which take into account the multilayer structure of a biological ...

An analytical model describing the absorption behavior of Hg1?x Cd x Te is developed. It simultaneously considers the contributions from non-parabolic conduction/light hole bands and parabolic heavy hole bands obtained from 14-band k�p electronic structure calculations and the Urbach tail. This model smoothly fits experimental ...

Tetra-needle-like ZnO whisker was magnetic modified through in situ synthesis of nanosized Fe3O4 particles on the surface of the whisker, and the microwave absorption behavior of the as-prepared product was investigated in detail. The result of the comparative microwave absorbing experiment showed that the magnetic modified ZnO whisker appeared more ...

A modified photothermal deformation technique is used to measure the absorptance behaviors of optical multilayered dielectric coatings for a high-power laser system. The surface thermal-lensing modification uses an enlarged probe beam to facilitate alignment of the laser beam and data acquisition. The coatings, both reflective and transmissive types, are ...

D{sub 2}O adsorption and desorption behavior on Fe{sub 2}O{sub 3} have been studied with a Fourier transform infrared absorption spectrometer (FT-IR). The absorption peaks of the O-D stretching vibration band were observed in the region of 2500-2750 cm{sup -1}, which were considered to be from the surface OD on the sample. Desorption ...

ABSTRACT: In this article, carbon black nanofluids were prepared by dispersing the pretreated carbon black powder into distilled water. The size and morphology of the nanoparticles were explored. The photothermal properties, optical properties, rheological behaviors, and thermal conductivities of the nanofluids were also investigated. The results showed that the nanofluids of ...

Continuing an earlier paper, the photochemical behavior of oxvgen- sensitized AgBr crystals is investigated. Col loidal silver is formed by illumination at 20 deg C. On illumination below -120 deg C an absorption spectrum is built up consisting of a system of bands, with maxima at 560 and 660 m mu , lying on a strong background. ...

Moisture absorption of natural fiber plastic composites is one major concern in their outdoor applications. The absorbed moisture has many detrimental effects on the mechanical performance of these composites. A knowledge of the moisture diffusivity, permeability, and solubility is very much essential for the application of natural fibers as an excellent reinforcement in ...

We develop a model based on simulation and experiment that explains the behavior of solid-state laser-supported absorption fronts generated in fused silica during high intensity (up to 5GW/cm{sup 2}) laser exposure. We find that the absorption front velocity is constant in time and is nearly linear in laser intensity. Further, this ...

Ni-P/AAO nano-array composite structure assemblies with Ni and P grown in the pores of anodic aluminum oxide (AAO) membranes were prepared by electroless deposition. The results of SEM, TEM and SAED show that as-deposited Ni-P nanowires have an amorphous structure and a few nanocrystallites form after annealing. The optical absorption spectra reveal that, as the annealing ...

It is shown that the locus of the f' + if'' plot in the complex plane, f' being determined from measured f'' by using the dispersion relation, looks like a semicircle very near the absorption edge of Ge. The semicircular locus is derived from a quantum theory of X-ray resonant scattering when there is a sharp isolated peak in f'' just above the ...

Soft X-ray absorption spectra of Be, Al, Sb and Bi, and Al-Mg alloys have been obtained by the use of synchrotron radiation emitted from the 750 MeV electron synchrotron at the Institute for Nuclear Study, Tokyo, as a continuous light source. The K-absorption structure of beryllium was found to agree with the density of states calculated by Loucks and ...

The hydrogen absorption kinetics of TA15 titanium alloy at 973-1123 K was studied using a tube-type hydrogen treatment furnace. The hydrogen absorption kinetic curves obtained were analyzed according to a series of mechanism equations to reveal the kinetic parameters and mechanism of the hydrogen absorption process. The results show ...

An analysis of THz waves propagation in dense, collisional, thermal, magnetized and bounded plasma is presented. By introducing the dielectric constant of a warm magnetoplasma and using the method of impedance transformation with multiple dielectrics, the coefficients of power reflection (R) and absorption (A) are derived for a bounded plasma model by a lossless plate and a ...

Transient mid infrared (MIR) absorption spectroscopy is used to investigate transitions between higher electronic subbands in semiconductor quantum well (QW) structures after interband photoexcitation with intense picosecond pulses in the visible spectral range. Our investigation focuses on the e2-e3 intersubband transition in an asymmetric undoped GaAs/AlGaAs QW structure. At ...

In this paper is reported a systematic experimental study of the linear-optical-absorption coefficient of ferrofluid-doped isotropic lyotropic mixtures as a function of the magnetic-grains concentration. The linear optical absorption of ferrolyomesophases increases in a nonlinear manner with the concentration of magnetic grains, deviating from the usual ...

We have determined the collision-induced absorption (CIA) spectrum in the O(2) B-band in pure oxygen. We present absolute extinction coefficients of the minimums in between rotational lines using cavity ring-down spectroscopy. The measured extinction is corrected for the B-band magnetic dipole absorption using a model which includes line-mixing. The ...

An analytical technique has been developed for studying hydrogen (H) absorption in cathodically charged metals. The technique combines computer modeling of H-motion with simple total H-content measurements, and yields the precise H-concentration profiles produced by galvanostatic charging. Although the technique was developed for one particular nickel-base superalloy, it is ...

It is shown that in relativistic theory the partial wave amplitudes f/ sub 1/ are analytical functions of the angular momentum 1. The asymptotic behavior of the scattering amplitude as a function of the transferred momentum is determined by the nearest singularities of f/sub 1/. An expression for the scattering amplitude at arbitrary transferred momenta is obtained in ...

Hydrogen absorption behavior of a beta titanium alloy in acid fluoride solutions has been analyzed by hydrogen thermal desorption. The amount of absorbed hydrogen increased with immersion time in a 2.0% acidulated phosphate fluoride (APF) solution. In the case of an immersion time of 60 h, the amount of absorbed hydrogen exceeded 10000 mass ppm. In ...

An analysis method for time-dependent broadband diffuse sound fields in enclosures is described. Beginning with a formulation utilizing time-dependent broadband intensity boundary sources, the strength of these wall sources is expanded in a series in powers of an absorption parameter, thereby giving a separate boundary integral problem for each power. The temporal ...

Spin-sensitive saturation of absorption of infrared radiation has been investigated in p-type GaAs QWs. It is shown that the absorption saturation of circularly polarized radiation is mostly controlled by the spin relaxation time of the holes. The saturation behavior has been investigated for different QW widths and in dependence on ...

We reexamine some aspects of scattering by a Schwarzschild black hole in the framework of complex angular momentum techniques. More precisely, we consider, for massive scalar perturbations, the high-energy behavior of the resonance spectrum and of the absorption cross section by emphasizing analytically the role of the mass. This is achieved (i) by ...

The temporal behavior of {gamma}-ray emission and absorption from long-lived ({tau}{gt}1 ms) nuclear states is modified qualitatively by interaction with the lattice, leading to homogeneous broadening. In contrast, for the usual short-lived ({tau}{lt}0.1 ms) states, such nucleus-lattice interaction invariably leads to inhomogeneous broadening. It is shown ...

On the basis of molecular-kinetic theory, frequency-dependent expressions are derived for the velocity and absorption coefficient of sound in a magnetic fluid with allowance for the contribution of structural relaxation in the presence of an external inhomogeneous magnetic field. The asymptotic behavior of the expressions is investigated for both low-and ...

In this paper, a two-dimensional nonlinear elastic-plastic mass-spring-damper-rod element model is employed to simulate the crush behavior of metallic foams. The density heterogeneity and pore fluid of metallic foams are considered. The metallic foams are compressed by applying a planar pulse loading or by giving a deformation rate. Several numerical results show the ...

The dielectric behavior of living tissues and a number of biological materials was examined by new equipment of the time domain reflectometry method in a wide frequency range of 10/sup 7/-10/sup 10/ Hz. The authors found two peaks of Debye absorption around 100 MHz and 20 GHz for all the materials. The low-frequency absorption is ...

A technique was developed for determining relative importance and correlation between reactions making up a complex kinetic system. This technique was used to investigate measurements of optical absorption cross sections and the correlation between cross sections and measured rate coefficients. It is concluded that (1) species, initial conditions, and temporal regions may be ...

A system to determine the density and temperature of ground state hydrogen atoms in a plasma by vacuum ultraviolet laser absorption spectroscopy is described. The continuous tunability of the spectrometer allows for analysis at any of the Lyman transitions. The narrow bandwidth of the laser system allows for the accurate determination of the absorption ...

Extremely shallow lamellar metallic gratings are shown to totally absorb incident light inside a wide angular interval. The full absorption still holds at the homogeneization limit when the period tends toward zero. It is shown that a lamellar grating, illuminated in normal incidence and in transerve magnetic polarization with a period lower than 1/, of the vacuum wavelength ...

... 2003) CGA-362622: Soil Behavior and Foliar Versus Root Absorption by Torpedograss (Panicum repens). Weed Technology 17:2, ... ...

... WALKER. (2004) Quinclorac: Soil Behavior and Foliar vs. Root Absorption by Torpedograss (Panicum repens). Weed Technology 18:3, ... ...

The purpose of this work was systematic investigation of the behavior of numerous metal chlorides and study of the influence of the sample size on the location of the deposition zones of the chlorides in open columns. The authors have devised a simple system for absorption photometric measurements of sublimatograms.

The report describes the thermoluminescence (TL) of six single crystals of yttrium oxide which are either rare earth doped or nominally pure. The fluorescence, coloration, and absorption behavior are also included. The glow peaks that are observed are som...

A novel method to derivatize the surface of zein is devised that can modify the water absorption and surface wetting behavior. The reagents used to impart the desired properties in a reasonable amount of time include octenyl succinic anhydride and alkyl and alkenyl ketene dimers. The method is eas...

In the belief that further progress in understanding the dynamical behavior following photoexcitation of gas phase molecules can be stimulated by the availability of improved time-resolved spectrographic apparatus (i.e. shorter, more intense, UV excitatio...

The paper studies some aspects of the infinite-momentum limit p sub 0 approaches infinity of amplitudes M satisfying the requirements of Regge asymptotic behavior in the energy s = (p-q)squared = p squared + q squared -2nu (for the absorptive part) and Bj...

The structures of insulator silicate, borate, and germanate glasses are inferred from Raman and infrared spectra. Optical absorption, luminescence, and Raman spectroscopy are used to determine the structural behavior of titanium, iron, and manganese in th...

We have prepared a number of high molecular weight, soluble, symmetrical dialkyl substituted germanium homopolymers and germanium-silicon copolymers. In solution, the absorption of the homopolymers was approx. 20 nm red shifted from the corresponding sili...

Amantadine, Doxapram and Maalox, to determine if they could inhibit the rate of absorption of alcohol into the blood stream and/or antagonize the behavioral impairment induced by alcohol. Fifteen subjects received five experimental treatments (placebo alo...

The wax structures on leaf surfaces are of great significance for both the deposit of solid and liquid aerosols and for the absorption of gaseous materials. With respect to their behavior toward aerosols, plants can be divided into two large groups. Plant...

The chemical behavior of fused salts was investigated by absorption spectrophotomctry in the visible and ultraviolet range. Included are discussions of theory and results on pure salts, fused salt mixtures and solutions, and complex ions in molten salts. (J.R.D.)

Black carbon plays a significant role in the physics and chemistry of atmospheric aerosols because of its optical absorptivity, adsorption capacity, and surface characteristics. These properties affect the composition and chemical behavior of the associat...

The kinetic behavior of carbocyanine dyes in low temperature glasses was investigated by a laser flash photolytic technique. Ultrasonic absorption kinetic studies of the complexation of silver (I) ion by thiosulfate anion and of many other cations by seve...

in terms of load-deformation response, energy absorption, deformability, structural stability, damage design solutions for demanding applications with severe environmental and loading conditions/C) structures is the brittle deformation behavior of concrete in tension. The design of Engineered Cementitious

The report gives a brief review of research under the headings: Silver halide studies (polarization; optical absorption); NH4Cl (mixed ion-proton-electron conductivity); Electrochemistry of stabilized zirconia (use as oxygen pump, electrode behavior); Pyr...

The chemical and radiolytic interaction of tritium with oils produces a variety of tritiated compounds. To understand the metabolic behavior and possible dosimetric consequences of tritiated oil contamination, the course of urinary tritium activity in hai...

Absorption spectra were used to determine the effect of modifier ions on the splitting and relative intensity of neodymium spectral terms in germanate and other glasses. The behavior of spectral components is related to the degree of inhomogeneous broaden...

The dioxoactinide(V) and (VI), or actinyl, cations of U, Np, Pu, and Am are of importance because of their unique properties and behavior in the reprocessing of nuclear spent fuel and in the migration of actinide elements. These actinyl cations are hard L...

The nonlinear transmission of Zn:tetrabenzporphyrin was measured in a Z-scan setup with 532-nm wavelength laser light and a 13-ns pulse duration. The excited state absorption cross section, the excited state refractive index cross section, and the linear ...

... 20S. Krishnamurthy, A.-B. Chen, and A. Sher, J. Appl. Phys. ... 26V. Ariel, V. Garber, G. Bahir, S. Krishnamurthy, and A. Sher, Appl. Phys. Lett. ...

... HgCdTe samples were grown on CdZnTe substrates in a ... k is the electron crystal momentum, Eg is the energy band gap, P is the momentum ...

... Corporate Author : ILLINOIS UNIV AT CHICAGO. Personal Author(s) : Guha, Shekhar ; Chang, Yong ; Flatte, ME ; Nathan, V. Handle / proxy Url : ...

Photochromic behavior of dihydropyridines and the mechanism of the photochromism based on phenyl transfer is described. Formation of polar coloured species, changes in optical absorption and in the tau electron character of the molecular skeleton allow for the fabrication of molecular optical memories and switches. PMID:1493209

Tension, compression and impact properties of a polyurethane encapsulant foam have been measured as a function of foam density. Significant differences in the behavior of the foam were observed depending on the mode of testing. Over the range of densities...

The combined effects of time stress and water absorption on epoxy matrix composites are studied. Bifunctional and tetrafunctional epoxy resins hardened with animated hardeners were exposed to moisture and stress at different temperatures. It is shown that...

A mathematical model to describe the macroscopic behavior of an axial magnetic filter is developed. The model takes into account the long range of absorption forces. Partial mixing of the particles in the fluid is taken care of by introducing the concept ...

The magnetic and electromagnetic wave absorption behavior of a flexible ironnanoparticle reinforced polyurethane nanocomposite is reported. Surface-initiated polymerization (SIP) method was utilized to fabricate high quality nanocomposites with uniform pa...

MACHINE MONITORING USING PROBABILITY THRESHOLDS AND SYSTEM OPERATING CHARACTERISTICS Stephen M. The absorption behavior of the process represented by equation (39), and in particular the distribution by equation (39). The key to establishing the Markovian properties of MPR is that the probability the machine

Infrared reflection-absorption spectroscopy (IRRAS) has been used to obtain the vibrational spectra of thin films of poly(3-methylthiophene) electrochemically polymerized on a platinum surface. Clear orientational effects, with the thiophene rings oriente...

The absorbed energy determined by the ion calorimeters was used as a basis for computations of the target behavior. Both neutron yield and x-ray spectra thus obtained were in agreement with the measured values within the precision of both calculations and experiments. Some results are described. (MOW)

The purpose of this study was to determine the threshold specific absorption rate (SAR) during exposure to 2450 MHz continuous wave (CW) microwaves that affected thermoregulatory behavior in mice. A plexiglas shuttle box was placed inside a waveguide impo...

The purpose of this study was to determine the threshold specific absorption rate (SAR) during exposure to 2450 MHz continuous wave (CW) microwaves that affected thermoregulatory behavior in mice. A plexiglas shuttle box was placed inside a waveguide imposed with a temperature gr...

We compare the measured and calculated light output of a semiconductor laser modulated by a saturable intracavity absorber. An accurate description of the dynamic and static behavior requires inclusion of both a carrier concentration dependent recombination rate and a voltage-dependent saturable absorption.

... e.g., heat transfer, convection, and absorption of solar energy, because the insect�s behavior also has to ... maintained orientation and location that maximized aborption of solar energy, i.e., that gras...

The potential uses of composites with knitted fiber reinforcements are studied. Their superior energy absorption behavior opens up interesting application fields when stiffness and strength are of less importance. The in-plane properties can be varied ove...

The problem studied is the rotational absorption spectrum of linear molecules of moment inertia I in a simple nonpolar buffer gas. The focus is on the behavior of the spectrum as the buffer gas pressure and the associated collision frequency v is increase...

The need for an understanding of the biological effects induced by exposure to microwave radiation has increased in recent years because of increased usage and applications and also concerns about potential adverse health effects. Although many research s...

A review is presented on the deposition and behavior of I/sup 131/ in man's environment. The routes of human absorption of I/sup 131/ and the relative importance of these routes are discussed. (P.C.H.)

A review of the behavior of radioiodine in fallout according to diffusion limited fission product absorption is presented. It suggests that radioiodines are highly fractionated. The isotopes I-131 through I-135 vary from calculated surface loadings of abo...

A pure carbonate rock is strongly water-wet whereas oil accumulations study shows that most of carbonate reservoirs are oil-wet or of mixed-wettability. This is one of the main difficulties to extract crude oil. This change of behavior is due to the adsor...

Purpose was to study the physical origin of a strong hysteresis on the pressure-composition isotherms of metal hydrides (plateau pressure during hydrogen absorption is several times higher than during reverse desorption). The research ended up studying the behavior of open coherent systems and the thermodynamics of an elastically coherent two-phase open ...

The behavior of the frequency of an LG-149-1 laser was studied theoretically and experimentally during harmonic modulation of the discharge current in the active element. It is shown that when the modulation frequency of the discharge current coincides with the modulation frequency of the absorption profile, an appreciable increase in laser frequency ...

A plant composed of an energy roof, a seasonal earth storage and an absorption heat pump has been tested. The purpose was to study the behavior of the various components and their interaction. The surveys went on during two years. The following operations...

A simple method was developed to speciate inorganic selenium in the microgram per liter range using coupled ion chromatography-hydride generation atomic absorption spectrometry. Because of the differences in toxicity and adsorption behavior, determination of the redox states selenite, Se(IV), and s...

The energy-dependent behavior of the absorption term of the spherical neutron optical potential for doubly magic {sup 208}Pb and neighboring {sup 209}Bi is examined. These considerations suggest a model with an intuitively attractive energy dependence of the imaginary potential that provides a good description of the observed neutron cross-sections and ...

Microscopic semiconductor theory is applied to an indirect Si-type semiconductor quantum well system. We discuss the absorption and stimulated emission of light accompanied by the creation or annihilation of phonons. We find strong differences to the optical properties of conventional direct semiconductors, including an asymmetric behavior where the ...

The electron spin resonance and optical absorption spectra of crystals of KCl cortaining silver impurity ions were examined after the crystals had been x-irradiated at 77 deg K. It is shown that the silver impurity ions act as traps for both electrons and positive holes. A description is given of the annealing behavior of the crystals after ...

Polymers incorporating photochromic molecules are promising materials for flexible optical switches and optical data storage devices. A study on reversible photoswitching of azobenzene incorporated polydimethylsiloxane is carried out using transmittance and UV-VIS absorption measurements. The influence of light intensity on the photoswitching behavior is ...

The L shell x-ray absorption near edge structure (XANES) for the 3d transition metals Ca-Cu is dominated by atomic-like behavior which is poorly understood. It has been studied by electron energy loss spectroscopy (EELS) and bremsstrahlung isochromat spec...

recorded to compute the strength and energy absorption. Composites made from short polypropylene and polyvinylalcohol fibers are compared with polypropylene and AR glass fabric composites. The specimens were tested absorption capacity of fabric reinforced cement composites under static loading as compared to plain concrete

Volume II of a two volume publication is presented in which aspects of conditioning and/or processing of natural gas for sale are examined. Chapters are included on absorption and fractionation, compression and expansion of fluids, refrigeration systems, liquefaction processes, water-hydrocarbon system behavior, dehydration and sweetening, adsorption ...

In the diffusion approximation with respect to the frequency analytic stationary and nonstationary solutions are found for the problem of transfer of resonance radiation in an infinite homogeneous nonconservative medium when there is absorption in the continuum. The scattering is assumed to be coherent in the system of the atom with an upper level broadened by damping. The ...

A method to quantify fluorescent labels spatially resolved in scattering and absorbing samples is proposed and tested using a tissue phantom. The method works without any a priori knowledge about the optical properties of the sample. The scattering and absorption behavior of the sample is estimated by measuring reflectance from the sample simultaneously to ...

Spectral absorption coefficients and fluorescence quantum efficiencies were determined for humic substances from a variety of sources. Specific absorption coefficients, K(h), for humic substances at wavelengths lambda from 300 to 500 nm can be closely described by the relation Ae...

The availability of Np(V) for absorption by plants and its subsequent transport and fate are described. Plant uptake of Np from solutions containing 7 x 10 exp -7 to 473 mu g Np/ml is proportional to concentration, exhibiting some saturation at higher con...

We analyze proton transfer data for the {sup 12}C+{sup 197}Au system. We show that the interplay between absorption and tunneling effects explains the observed energy dependence of the transfer probabilities at large distances, including the apparently anomalous behavior at high energies. {copyright} {ital 1997} {ital The American Physical Society}

Past experiments of this project utilizing three separate and distinct radiation facilities have determined the whole body and distribution within the body of resonant electromagnetic power absorption for both man models and laboratory rodents. The absorption of such energy is reliably determined by both the frequency of radiation and the orientation of ...

Microwaves can produce sensations of warmth and sound in humans. In other species, they also can serve as cues, they may be avoided, and they can disrupt ongoing behavior. These actions appear to be due to heat produced by energy absorption. The rate of absorption depends on the microwave parameters and the electrical and geometric ...

Prophyra-334 was prepared by methanol extraction and HPLC methods from marine algae (dried laver). It is a sunscreen compound that has good absorption of ultraviolet radiations in the wavelength ranges of 200-400 nm. The absorption maximum wavelength of prophyra-334 is at 334 nm, so defined the name. The molar extinction coefficient (?) of prophyra-334 in ...

The optical absorption of single crystals of synthetic rutile was investigated in the spectral range from 1200 to 25,OOO cm/sup -1/ and from room temperatare to 1OOO deg C. The electronic absorption exhibits dichroic behavior. The edge moves toward lower energies as temperatare is increased, with the shift depending upon the ...

Direct absorption measurements of microwave energy having energy less than the superconducting gap in the granular composites of the 90-K superconductor YBa{sub 2}Cu{sub 3}O{sub 1{minus}{ital x}} as a function of dc magnetic-field strength between 0.1 and 1.0 T reveal a nonlinearly increasing absorption of microwave energy with increasing field strength. ...

A full Lorentz line shape of the radiation absorption is used in order to account for the self-broadening continuum absorption of the water vapor. The Clausius-Mossotti formula of dispersion has been changed to take into consideration the influence of the medium on the imaginary part of the susceptibility. Absorption along path lengths ...

The effect of pressure to 160 kilobars, combined with temperature to 400 deg C is measured on the absorption edge of AgCl, AgBr, and AgI. The behavior of AgCl and of AgBr is nearly identical. In the low pressure (fcc) phase there is a red shift with pressure at low temperature. At high temperature the edge shifts blue with increasing pressure. ...

We have calculated the nonlocal dielectric function of the alkali metals in the region of the p-core excitation threshold. The theory is at the level of the random-phase approximation and includes the self-consistent response of both valence and core electrons. We find that the peaking of threshold absorption is due to valence-electron-hole excitations which are induced by the ...

In conjunction with x-ray transmission data, the integral relation between the refraction index and the absorption coefficient can be employed to extend the range over which optical constants were determined by Kramers-Kronig analysis of reflectance data. The procedure is applied to measurements on aluminum and the optical constants are determined for the energy range ...

A new ferrocene based molecule behaves as a dual channel signaling chemosensor for Cu(2+) over other metal ions. The perturbations in the absorption pattern and electrochemical behavior of the chemosensor are presented. These have been proposed to be caused by the interaction of Cu(2+) with the d-electrons and the electron rich ?-system of the ferrocenyl ...