An analytical, nonlinear space charge wave theory is given for the velocity modulated, confined electron beam of finite radial extension. The present theory gives a more accurate nonlinear description of the electron velocities and the ac current amplitud...
National Technical Information Service (NTIS)
We present an analytical description of neutrino oscillations in matter based on the Magnus expansion of the time evolution operator. This approach incorporates in a simple and, at the same time, accurate way the Earth matter effects on the flavor transition probabilities in a wide interval of the neutrino energies. As a concrete ...
Energy Citations Database
NASA Astrophysics Data System (ADS)
A high-energy electron cooling system is presently being developed to overcome emittance growth due to Intra-beam Scattering (IBS) in RHIC. A critical item for choosing appropriate parameters of the cooler is an accurate description of the IBS. The analyt...
This work presents an analytic description of the coherent excitation of a two-state quantum system by an external field with a Gaussian temporal shape and a constant frequency. A very accurate analytic approximation to the transition probability is derived by using the Dykhne-Davis-Pechukas approach. This ...
... Accession Number : AD0631833. Title : THE ANALYTIC DESCRIPTION OF THE GEOMAGNETIC FIELD AT SATELLITE ALTITUDES,. ...
DTIC Science & Technology
... Title : ANALYTIC SOLUTIONS TO THE EQUATIONS OF MOTION ... very accurately by the approximate solutions. An alternate solution for the modal ...
... Accession Number : AD0657576. Title : HIGHLY ACCURATE DISCRETE METHODS FOR NONLINEAR PROBLEMS. Descriptive ...
We present an analytical formalism, within the effective-one-body framework, which predicts gravitational-wave signals from inspiralling and coalescing black-hole binaries that agree, within numerical errors, with the results of the currently most accurate numerical-relativity simulations for several different mass ratios. In the equal-mass case, the ...
... AN ANALYTICAL DESCRIPTION OF THE FREE-MOLECULE CYLINDRICAL ... ANALYSIS), ELECTRON DENSITY, ELECTRIC CURRENTS, PLASMA ...
... Title : ANALYTICAL AND EXPERIMENTAL STUDY OF A MELTING PROBLEM WITH NATURAL CONVECTION. Descriptive Note : Research rept.,. ...
... Title : ANALYTIC SOLUTIONS OF THE ARROW, HARRIS, AND MARSCHAK DYNAMIC INVENTORY MODEL. Descriptive Note : Thesis,. ...
The Low-Altitude Mission Planning tool is capable of providing accurate long-term (approx. 90 day) predictions of key Keplerian orbit parameters and related quantities for one or two low-altitude satellites. Analytically modeled averaged variational equat...
A combined analytical-numerical approach is presented to characterize properly the exchange flow between a stream and a hydraulically connected aquifer. It eliminates the need to use a three-dimensional fine grid under and in the vicinity of the river cross section in order to obtain accurate results. Basically the approach matches an ...
PubMed
Allison, M., 1997: Accurate analytic representations of solar time and seasons on Mars with applications to the Pathfinder/Surveyor missions. Geophys. Res. ...
NASA Website
Visual analytics is the science of analytical reasoning that facilitates research through the use of interactive visual interfaces. New techniques of visual analytics are designed to aid the understanding of complex systems versus traditional blind-context rules to explore massive volumes of interrelated data. Nowhere else is ...
PubMed Central
The prerequisites for application of the analytical characteristics method include analytical descriptions of the geometry of wave fronts and rays, and analytical solutions of the wave equation of the potential equation for supersonic flow. The latter are...
... Title : Method for Accurately Varying the Density of a Powder or Powder Charge, and Shrink Tubes for Use Therewith. Descriptive Note : Patent,. ...
... Title : Fast and Accurate Prediction of Windborne Contaminant Plumes for Civil Defense in Cities. Descriptive Note : Conference paper. ...
... Accession Number : ADA295327. Title : Development of a System for Accurate Forecasting of Solar Activity. Descriptive Note : Final rept. ...
... Accession Number : ADA003458. Title : An Accurate Economical Numerical Radiation Transport Algorithm. Descriptive Note : Memorandum rept.,. ...
... Title : Alanine Dosimetry Accurately Determines Radiation Dose in Nonhuman Primates. Descriptive Note : Special publication. ...
... Accession Number : ADA396425. Title : Accurate Multiresolution Modeling of the Earth's Gravitational Field. Descriptive ...
... Title : Accurate Fourier Analysis of Arbitrary Functions Defined by Discrete Data Values. Descriptive Note : Technical memo.,. ...
... Title : Accurate Efficient Evaluation of Bessel Transform; Programs and Error Analysis. Descriptive Note : Technical rept. ...
This review on molecular integrals for large electronic systems (MILES) places the problem of analytical integration over exponential-type orbitals (ETOs) in a historical context. After reference to the pioneering work, particularly by Barnett, Shavitt and Yoshimine, it focuses on recent progress towards rapid and accurate analytic ...
This paper presents a semi analytical formulation of modal properties of a non linear optical fiber having Kerr non linearity with a three parameter approximation of fundamental modal field. The minimization of core parameter (U) which involves Kerr nonlinearity through the non-stationary expression of propagation constant, is carried out by Nelder�Mead Simplex method of non ...
This work improves the reliability and accuracy in the reconstruction of the total isotope activity content in heterogeneous nuclear waste drums containing point sources. The method is based on ?(2)-fits of the angular dependent count rate distribution measured during a drum rotation in segmented gamma scanning. A new description of the analytical ...
... Accession Number : ADA431022. Title : Uncertainties in the Analytic Hierarchy Process. Descriptive Note : Technical note. ...
... Title : Toxicologic and Analytical Studies with T-2 and Related Trichothecene Mycotoxins. Descriptive Note : Annual rept. ...
... Title : Tensors and Differential Geometry Applied to Analytic and Numerical Coordinate Generation. Descriptive Note : Interim rept.,. ...
... Accession Number : ADA123143. Title : Some Techniques in Analytical Optical Microscopy. Descriptive Note : Technical memo.,. ...
... Title : Some Applications of Fuzzy Sets and the Analytical Hierarchy Process to Decision Making. Descriptive Note : Master's thesis,. ...
... Accession Number : AD0625832. Title : SOME ASPECTS OF COMBUSTION KINETICS: ANALYTICAL SURVEY. Descriptive Note : Rept. no. ...
... Accession Number : ADD600258. Title : Review Of Empirical And Analytical Specific Impulse Methodalogies. Descriptive ...
... Accession Number : ADA189111. Title : Request for an Analytical Transmission Electron Microscope. Descriptive Note : Final rept. ...
... Title : Purity Determination of Standard Analytical Reference Materials by Differential Scanning Calorimetry. Descriptive Note : Special rept. ...
... Accession Number : ADA264800. Title : Principal Components of Natural Images: An Analytical Solution. Descriptive Note : Technical rept.,. ...
... Accession Number : ADA214804. Title : Optimization by the Analytic Hierarchy Process. Descriptive Note : Final rept,. Corporate ...
... ADA210440. Title : On Analytic Modeling of Lunar Perturbations of Artificial Satellites of the Earth. Descriptive Note : Technical rept. ...
... Accession Number : ADA185210. Title : Numerical and Analytical Methods in Nonlinear Partial Differential Equations. Descriptive ...
... Title : Molecular Quantum Mechanics: Analytic Gradients and Beyond - Program and Abstracts. Descriptive Note : Conference proceedings. ...
Applications Technology Satellite F and G project analytical report including description of 30 foot
NASA Technical Reports Server (NTRS)
... Accession Number : AD0698801. Title : FIXED POINTS OF ANALYTIC FUNCTIONS. Descriptive Note : Technical rept.,. ...
... Title : Development of Analytical Methods for the Determination of Experimental Antimalarials in Biological Fluids. Descriptive Note : Rept. no. ...
... Title : Development of Analytical Methods for the Determination of Experimental Antimalarials in Biological Fluids. Descriptive Note : Annual rept. ...
... Accession Number : ADA500058. Title : Curing Analytic Pathologies: Pathways to Improved Intelligence Analysis. Descriptive Note : Monograph. ...
... Accession Number : ADA272722. Title : Computational and Analytical Methods in Nonlinear Fluid Dynamics. Descriptive Note : Final rept. ...
... Accession Number : ADA132969. Title : Comparison of TDNOVA Results with an Analytic Solution. Descriptive Note : Memorandum rept. ...
... Title : Applications of Functional Analytical Methods to Problems in Queueing Network Theory and Reliability Theory. Descriptive Note : Final rept. ...
... Title : Analytical and Experimental Investigations of Sodium Heat Pipes and Thermal Energy Storage Systems. Descriptive Note : Final rept. ...
... Title : Analytical and Characterization Studies of Organic Chemicals, Drugs and Drug Formulations. Descriptive Note : Annual rept. ...
... Title : Analytical and Characterization Studies of Organic Chemicals, Drugs and Drug Formulation. Descriptive Note : Annual rept.,. ...
... Accession Number : ADA424132. Title : Analytical Systems Engineering Advanced Mathematics. Descriptive Note : Final rept. ...
... Accession Number : ADA386572. Title : Analytical Support for PCB Dechlorination in Marine Sediments. Descriptive Note : Rept. ...
... Title : Analytical Solutions for Open Nonshallow Spherical Shell Vibrations. Descriptive Note : Research and development rept.,. ...
... Accession Number : ADA522647. Title : Analytical Particle Measurements in an Optical Microflume. Descriptive Note : Journal article. ...
... Accession Number : AD0767689. Title : Analytical Models for SERVMART Inventory Control,. Descriptive Note : Technical rept.,. ...
... Accession Number : ADA208730. Title : Analytical Modeling of Reinforced Concrete in Tension. Descriptive Note : Technical rept. ...
... Title : Analytical Investigations of the Acceleration Sensitivity of Acoustic Bulk and Surface Wave Resonators. Descriptive Note : Final rept. ...
... Accession Number : ADA251491. Title : Analytical Chemistry in Microenvironments: Single Nerve Cells. Descriptive Note : Technical rept.,. ...
... Title : Analytical Chemistry Detection Limits and the Evaluation of Dredged Sediments. Descriptive Note : Technical note. ...
... Accession Number : AD0754995. Title : Analytic Characterizations of Heat and Thermal Conductivity. Descriptive Note : Final scientific rept. ...
... Accession Number : ADA526779. Title : An Exploratory Aerodynamic Limits Test with Analytical Correlation. Descriptive Note : Conference paper. ...
... Title : An Experimental and Analytical Study of TIP Clearance Effects in Axial Flow Compressors. Descriptive Note : Doctoral thesis,. ...
... Title : An Application of the Analytic Hierarchy Process to Evaluate Candidate Locations for Building Military Housing. Descriptive ...
... Title : An Analytical and Experimental Investigation of Hypersonic Viscous Interaction Pressure Effects. Descriptive Note : Final rept. ...
... Accession Number : ADA200318. Title : An Analytical Treatment of Resonance Effects on Satellite Orbits. Descriptive Note : Technical rept. ...
... Accession Number : ADA098626. Title : An Analytical Solution of the Two Star Sight Problem of Celestial Navigation. Descriptive ...
... Accession Number : AD0766303. Title : An Analytical Model of the Ferroelectric Radiation Detector. Descriptive Note : Memorandum rept.,. ...
... Title : An Analytical Investigation of the Effects of Flow Property Fluctuations on the Fay-Riddell Equation. Descriptive Note : Master's thesis,. ...
... Accession Number : ADA028285. Title : An Analytic Approach for a Capacitated CPM Problem. Descriptive Note : Research rept.,. ...
... Accession Number : AD0607272. Title : ANALYTICAL METHODS FOR IMPURITIES IN CESIUM METAL. Descriptive Note : Final rept. ...
... Title : ANALYTICAL DEFINITION OF THE CORNELL WAVE SUPERHEATER FLOW FIELD ENVIRONMENT. Descriptive Note : Technical rept. ...
... Accession Number : AD0488483. Title : ANALYTIC AND MONTE CARLO DISTRIBUTION THEORY FOR PERT. Descriptive Note : Technical rept.,. ...
... Accession Number : AD0483583. Title : AN ANALYTICAL MODEL OF THE MARZOLF INVERTER CIRCUIT. Descriptive Note : Master's thesis,. ...
... Accession Number : AD0633489. Title : AN ANALYTICAL INVESTIGATION OF A MODIFIED STEFAN PROBLEM. Descriptive Note : Research rept.,. ...
... Accession Number : ADA155607. Title : A Numerical and Analytical Investigation of Lee Cyclogenesis. Descriptive Note : Doctoral thesis,. ...
... Accession Number : ADA374245. Title : A Method for Interpreting Continental and Analytic Epistemology. Descriptive Note : Master's thesis. ...
... Title : A LOWER STANDARD ELECTRON ENERGY FOR ANALYTIC MASS SPECTROSCOPY. Descriptive Note : Rept. for Jul-Dec 63,. ...
... Title : A Comparison of the Analytic Hierarchy Process and the Geometric Mean Procedure for Ratio Scaling. Descriptive Note : Interim rept. ...
Language: English ...
NBII National Biological Information Infrastructure
... The language is addressed totally to ... to obtain an analytic description of the ... COMPUTERS, *PROGRAMMING LANGUAGES, DIGITAL COMPUTERS ...
We study the time evolution of the polarization state of the light emitted by a Nd:YAG laser as the direction of the linearly polarized pump beam is changed. The accurate description of the emitted polarization state is an exciting topic encountered in many laser systems and often depends on the peculiarities of the laser structure. However, we expect that ...
The origins of and variations in bonding among weakly bound diatomics are discussed in terms of the virial theorem as applied to Born--Oppenheimer total energy curves. These curves are represented by accurate and flexible analytic functions. Expressions are given for the relations among the parameters of these functions and the electron average kinetic ...
Using an automated magnet measurement system employing a variety of current excitation ramps, extensive studies of the hysteretic behavior of magnet strength have been carried out. An analytic description which is accurate at better than 0.1% has been achieved. Prescriptions for setting field strength using these formulas will be ...
DOE Information Bridge
It is shown that several features of antihydrogen production in nested Penning traps can be described with accurate and efficient Monte Carlo simulations. It is found that cold deeply-bound Rydberg states of antihydrogen (H-bar) are produced in three-body capture in the ATRAP experiments and an additional formation mechanism -Rydberg charge transfer-, particular to the nested ...
Many physical and chemical processes, such as folding of biopolymers, are best described as dynamics on large combinatorial energy landscapes. A concise approximate description of the dynamics is obtained by partitioning the microstates of the landscape into macrostates. Since most landscapes of interest are not tractable analytically, the probabilities of ...
A high-energy electron cooling system is presently being developed to overcome emittance growth due to Intra-beam Scattering (IBS) in RHIC. A critical item for choosing appropriate parameters of the cooler is an accurate description of the IBS. The analytic models were verified vs dedicated IBS measurements. Analysis of the 2004 data ...
The ground and the excited states of a two-dimensional anyon system are studied via finite-size numerical calculations and single-mode approximation In a spherical geometry. It is shown that Laughlin`s mean field theory gives an accurate description of the ground state properties. We find, consistent with earlier analytic theories, ...
In this paper the ground and the excited states of a two-dimensional anyon system are studied via finite-size numerical calculations and single-mode approximation in a spherical geometry. It is shown that Laughlin's mean field theory gives an accurate description of the ground state properties. The authors find, consistent with earlier ...
This paper presents an instrument for real-time emulation of digital subscriber loop binders. The instrument is based on the accurate description of the transmission channels characteristics and the binder's crosstalk environment. A key feature of the presented instrument is its ability to support single and multiple lines. In the multiple lines ...
E-print Network
The similarities and differences of a universal network to normal neural networks are outlined. The description and application of a universal network is discussed by showing how a simple linear system is modeled by normal techniques and by universal network techniques. A full implementation of the universal network as universal process modeling software on a dedicated ...
A nodal algorithm for the solution of the multigroup diffusion equations in hexagonal arrays is analyzed. Basically, the method consists of dividing each hexagon into four quarters and mapping the hexagon quarters onto squares. The resulting boundary value problem on a quadrangular domain is solved in primal weak formulation. Nodal finite element methods like the Raviart-Thomas RTk schemes provide ...
A comparison between the analytic formulae of Shafranov for equilibrium in axisymmetric toroidal reversed field pinch (RFP) systems and fully toroidal numerical solutions of the Grad-Shafranov equation is presented as a function of poloidal beta, internal plasma inductance, and aspect ratio. The Shafranov formula for the equilibrium poloidal field distribution is ...
The results are presented of an extensive numerical study on the formation and evolution of early distortions of the microwave background spectrum. The thermalization redshift, Z(therm), of arbitrary amounts of energy has been accurately determined. Simple formulae, yielding Z(therm) as a function of the baryon density and of the chemical potential are given. The process of ...
An understanding of the warm up of automotive catalysts is important for accurate prediction of light off. This work describes some experimental studies on warm up in the absence of chemical reactions. In parallel with these experiments, the temperatures of the warmed substrate have been predicted. The problem of warm up is a simple one, capable of ...
The ground state of an externally confined one-component Yukawa plasma is derived analytically using the local density approximation (LDA). In particular, the radial density profile is computed. The results are compared with the recently obtained mean-field (MF) density profile [Henning et al., Phys. Rev. E 74, 056403 (2006)]. While the MF results are more ...
The rupture of rubber differs from conventional fracture. It is supersonic, and the speed is determined by strain levels ahead of the tip rather than total strain energy as for ordinary cracks. Dissipation plays a very important role in allowing the propagation of ruptures, and the back edges of ruptures must toughen as they contract, or the rupture is unstable. This article presents several ...
A description is given of an analytical solution to the scattering Mueller matrix of an ensemble of small particles that may be of different shape, size, composition, and structure. It is derived within the framework of the generalized multiparticle Mie solution (GMM). Provided that all individual T matrices of a group of particles are known ...
We provide simple and accurate analytical expressions for the Regge poles of the Schwarzschild black hole. This is achieved by using third-order WKB approximations to solve the radial wave equations for spins 0, 1, and 2. These results permit us to obtain analytically the dispersion relation and the damping of the 'surface ...
We provide simple and accurate analytical expressions for the Regge poles of the Schwarzschild black hole. This is achieved by using third-order WKB approximations to solve the radial wave equations for spins 0, 1, and 2. These results permit us to obtain analytically the dispersion relation and the damping of the �surface waves� ...
We present a formalism for the matter effects in the Earth on low energy neutrino fluxes which is both accurate and has all the advantages of a full analytic treatment. The oscillation probabilities are calculated up to the second order term in {epsilon}(x){identical_to}2V(x)E/{delta}m{sup 2}, where V(x) is the neutrino potential at position x. We show the ...
A general factorized form of the dielectric function together with a fractional model-based parameter estimation method is used to provide an accurate analytical formula for the complex refractive index in water for the frequency range 10(8)-10(16)Hz . The analytical formula is derived using a combination of a microscopic ...
A general factorized form of the dielectric function together with a fractional model-based parameter estimation method is used to provide an accurate analytical formula for the complex refractive index in water for the frequency range 108-1016Hz . The analytical formula is derived using a combination of a microscopic ...
Optical antennas link objects to light. Here we derive an analytical model for the interaction of dipolar transitions with radiation through nanorod antenna modes, by modeling nanorods as cavities. The model includes radiation damping, accurately describes the complete emission process, and is summarized in a phase-matching equation. We ...
This book examines how a variety of behavioral factors, generally overlooked in existing models, affect energy use. It points the way-to-more accurate energy demand forecasts and more effective policies built on analyses that take these factors into account. This book begins with a description of how two analytic strategies - formal ...
An analytical model based on a modal expansion method is developed to investigate the optical transmission through metal gratings. This model gives analytical expressions for the transmission as well as for the dispersion relations of the modes responsible for high transmission. These expressions are accurate even for real metals used ...
A fully analytical description of the control of the cross-correlated cross relaxation of multiple-quantum coherences in the presence of local dynamics under heteronuclear double-resonance radio-frequency (RF) irradiation is presented. The contribution of chemical exchange to relaxation can be partly or fully quenched by RF fields. We assume a correlated ...
Simple, two-dimensional Vlasov-Poisson descriptions of thermal equilibrium have been applied to both an unbunched ion beam propagating in a continuous linear focusing channel and an unneutralized, single-species plasma confined in a Penning-Malmberg trap geometry. In scaled variables, these two thermal equilibrium systems result in an identical nonlinear equation that must be ...
We address the problem of constructing high-accuracy, faithful analytic waveforms describing the gravitational wave signal emitted by inspiralling and coalescing binary black holes. We work within the effective-one-body (EOB) framework and propose a methodology for improving the current (waveform) implementations of this framework based on understanding, element by element, ...
Detailed understanding of the thermal processes in biological targets undergoing laser irradiation continues to be a challenging problem. For example, the contemporary pulsed dye laser (PDL) delivers a complex pulse format which presents specific challenges for theoretical understanding and further development. Numerical methods allow for adequate description of the thermal ...
To understand and increase the use of biodiesel, analytical methods need to be shared and compared to ensure that accurate data are gathered on this complex fuel.
... A GCIEC analytical method was developed to quantitate bis- (trif luoromethyl)disulf ide accurately in exhaled air of exposed animals. ...
... Abstract : A GC/EC analytical method was developed to quantitate bis- (trifluoromethyl)disulfide accurately in exhaled air of exposed animals. ...
Conditional inference plays a central role in statistics, but determination of relevant conditional distributions is often difficult. We develop analytical procedures that are accurate and easy to apply for approximating conditional distribution functions...
We extend to the case of perfect wetting the exact calculation of Orr et al. (J. Fluid. Mech. 1975, 67, 723) for a pendular ring connecting two dry surfaces. We derive an approximate analytical expression for the capillary force between two highly curved surfaces covered by a wetting liquid film. The domain of validity of this expression is assessed and extended by a ...
A persistent feature of complex systems in engineering and science is the emergence of macroscopic, large scale, coherent behaviour from the interactions between microscopic agents (molecules, cells, grains) and also with their environment. In current modelling the underlying microscopic mechanisms are often known, but the closures to translate microscale knowledge to a system level macroscopic ...
A new semiempirical potential energy surface (PES) for the acetylene-hydrogen system has been derived by using the recently introduced bond-bond methodology. The proposed PES, expressed in an analytic form suitable for molecular dynamics simulations, involves a limited number of parameters, each one having a physical meaning and allowing the accurate ...
... Title : THE SOCIAL SCIENCES IN INTERNATIONAL AND MILITARY POLICY: AN ANALYTIC BIBLIOGRAPHY. Descriptive Note : Interim rept. ...
... Title : REPRESENTATION AND CHARACTERIZATION PROBLEMS FOR ANALYTIC FUNCTIONS. Descriptive Note : Final rept.,. ...
report will include a description of the group's analytic methods, a list of the criteria, and an annotated bibliography of the source documents. ...
Descriptive and analytical information useful for the optimal design, specification, and performance
... EQUATIONS OF STATE, DEEP OCEANS, CARBONATES, LOW FREQUENCIES, ACOUSTIC CHANNELS, MAGNESIUM SULFATES. ...
... Beginning from a thermodynamic basis and considering only isothermal processes, a series of physically appealing assumptions is employed to ...
...exhaust sampling and analytical system description. (a) Schematic...of a sampling and analytical system which may be used for testing...additional information and coordinate the functions of the component systems. (g) The following...
Code of Federal Regulations, 2010
Analytical data from a plutonium-metal exchange program conducted by six ERDA laboratories are statistically evaluated. The objective is an accurate determination of five metal impurities (aluminum, chromium, iron, nickel, silicon) in each of three pluton...
... Detection Limit - - + - 3 ... allow an accurate statement of the content of impurities of an analyte, ie, related substances test, heavy metals, residual solvents ...
Center for Biologics Evaluation and Research (CBER)
... Power losses were larger than anticipated and indicate that a more sophisticated analytical model is necessary for accurate sizing of gas spring ...
... and agencies for Research Development Test and Evaluation (RDT&E) data. ... The experimental data fit the analytical curves accurately. ...
... JAGUAR analytical procedures were developed for the accurate calculation of detonation properties of high-blast aluminized explosives. ...
... This paper models the equilibrium solutions for a laser ... the peak density, velocity, and temperature of the ... and the distance to the critical surface on ...
A simple analytical procedure is described for accurately and precisely determining the zirconium or
... ADA375813. Title : Time Accurate CFD Analysis of Ship Air Wake with Coupled V-22 Flow. Descriptive Note : Professional paper. ...
... Accession Number : ADA505526. Title : Fuzzy Math: Do Current Relative Values Tell An Accurate Story? Descriptive Note : Research paper. ...
... Accession Number : ADA160060. Title : Development of an Accurate Algorithm for exp(Bt). Descriptive Note : Technical rept.,. ...
... Accession Number : ADA450957. Title : An ICP Etching Tool for Accurate Fabrication of Photonic Crystal Structures. Descriptive Note : Final rept. ...
... Accession Number : ADD802290. Title : An Accurate and Fast Range Finder for Robotics. Descriptive Note : Conference paper,. Corporate Author : ...
... Accession Number : ADA427914. Title : Accurate Assignment of Ethanol Origin in Postmortem Urine: A Case Study. Descriptive Note : Final rept. ...
An analytical model for thermal damage of retinal tissue due to absorption of laser energy by finite-sized melanin granules is developed. Since melanin is the primary absorber of visible and near-IR light in the skin and in the retina, bulk heating of tissue can be determined by superposition of individual melanin granule effects. Granules are modeled as absorbing spheres ...
Iodine monobromide has been studied in various wavelength regions by researchers using diffraction grating, microwave, and high-resolution laser techniques combined with a Fourier transform spectrometer. Differences in predictions generated from parameters for the A ^3?_1 and X ^1?^+ states obtained from some of these studies show that it can be difficult to make reliable predictions outside the ...
Charge exchange recombination spectroscopy on Alcator C-Mod relies on the use of the diagnostic neutral beam injector as a source of neutral particles which penetrate deep into the plasma. It employs the emission resulting from the interaction of the beam atoms with fully ionized impurity ions. To interpret the emission from a given point in the plasma as the density of emitting impurity ions, the ...
An accurate description of a radially polarized fundamental Gaussian beam is presented on the basis of complex-source-point spherical waves (CSPSWs). In contrast to other descriptions based on the perturbative Lax series, the expressions for the electromagnetic field components of this description have explicit and ...
A major activity in the 20 year collaboration between the Analytical Chemistry Division at NIST and the College of American Pathologists (CAP) has been the development of highly accurate and precise 'definitive' methods for important clinical analytes in ...
This report presents the results of the evaluation of five analytical methods for percent phosphorus determination and makes recommendations for the use of common methods to provide accurate and precise results in the field. The analytical methods are: (1...
...study. (a) The analytical method used in an...study to measure the concentration of the active...precision, the actual concentration of the active drug... (b) When the analytical method is not sensitive...measure accurately the concentration of the active...
Recent results and future challenges in the systematic analytical description of plasma turbulence are described. First, the importance of statistical realizability is stressed, and the development and successes of the Realizable Markovian Closure are briefly reviewed. Next, submarginal turbulence (linearly stable but nonlinearly self-sustained ...
We develop an analytical model for ultracold atom�ion collisions using the multichannel quantum-defect formalism. The model is based on analytical solutions of the r?4 long-range potential and on the application of a frame transformation between asymptotic and molecular bases. This approach allows the description of atom�ion ...
We extend our continuum description of solvent dielectrics in molecular-dynamics (MD) simulations, which has provided an efficient and accurate solution of the Poisson equation, to ionic solvents as described by the linearized Poisson-Boltzmann (LPB) equation. We start with the formulation of a general theory for the electrostatics of an arbitrarily shaped ...
Measurements of extremely low frequency (ELF) transients can be used to obtain model parameters and rates of the strong cloud-to-ground (CG) lightning discharges that generate them. In this study, we present an analytical description of a CG lightning discharge which takes into account both a return stroke and a continuing current. Using quasi-TEM (q-TEM) ...
This report describes organic analyses results from in situ samples obtained from the headspace of the Hanford waste storage Tank 241-C-109 (referred to as Tank C-109). The results described here were obtained to support safety and toxicological evaluations. Organic compounds were quantitatively determined. Thirteen organic tentatively identified compounds (TICs) were observed above the detection ...
A combined experimental and analytical investigation was conducted to identify and understand better the phenomena that govern the performance limitations and operating characteristics of micro heat pipes - heat pipes so small that the mean curvature of the vapor-liquid interface is comparable in magnitude to the receiprocal of the hydraulic radius of the flow channel. The ...
This report describes organic analyses results from ambient samples collected both upwind and through the vapor sampling system (VSS) near Hanford waste storage Tank 241-C-103 (referred to as Tank C-103). The results described here were obtained to support safety and toxicological evaluations. A summary of the results for inorganic and organic analytes is listed. Quantitative ...
In order to analysis of reinforced concrete structures subjected to general loading conditions, realistic constitutive models and analytical procedures are required to produce reasonably accurate simulations of behavior. In this study, an analytical model which can predict the nonlinear behavior of Reinforced Concrete (RC) structures ...
Description of an accurate three-dimensional mathematical model and computer program for calculating
