The objective of this study was to determine the accuracy of bone density measurement with a new OCT

... A RAPID AND ACCURATE DETERMINATION OF THE ELECTRICAL CONDUCTIVITY OF ... HIGH ENOUGH TO ENSURE THAT THE SKIN DEPTH ...

... Hall measurements are made on the semiconductor sample during and after the laser pulse to determine the mobility, nu and carrier density, n, as ...

... Title : Interlaboratory Determination of Oxygen in Silicon for ... Oxygen Coefficient 1988 (IOC-88) study. ... IR) instruments to measure accurately the ...

... Accession Number : ADA452270. Title : Determination of Volume Solids of Paints and Coatings by Accurate Dry Film Thickness Measurements. ...

... Hall measurements are made on the semiconductor sample during and after the laser pulse to determine the mobility, mu, and carrier density, n, as ...

... in the measured values of permittivity and conductivity were 1% and 2% respectively. Comparative dielectric measurements performed on brain ...

Aug 18, 2011 ... Accurate temperature and pressure data are needed to evaluate chemical reaction rates as well as to determine accurate mixing ratios. ...

... However, the detection of parasites, identification of parasite species, and accurate measurement of parasite density pose difficul- ties, and require ...

... Measurements for thermal diffusivity of stainless steel and graphite (standard reference materials) indicate that the method is accurate to within 3%. ...

... designed and built enclosing the microwave plasma system to accurately determine the net energy transferred to the flowing gas. For a flow rate of ...

Simple measurement of frequency response. Simple acquisition of temporal data. Accurate determination of modal deflection ...

The accurate experimental determination of burning velocities is a severe problem. Because of experimental difficulties there is no generally recommended procedure for velocity measurements of planar flames. Even greater are the difficulties for determini...

A selection of methods for structure factor determination by electron diffraction is presented. Results obtained by the different methods are compared with regards to accuracy in structure factor determination. A comparison between measurements of structu...

Precise and accurate density determination requires weight measurements in air and water using sufficiently precise analytical balances, knowledge of the densities of air and water, knowledge of thermal expansions, availability of a density standard, and ...

We have examined three different methods of endotoxin determination utilizing the Limulus Amebocyte Lysate (LAL) assay to accurately determine endotoxin levels in Liposome Encapsulated Hemoglobin (LEH), (1) the gel-clot method, (2) chromogenic spectroscop...

This citation summarizes a one-page announcement of technology available for utilization. The rotation of a reflecting part is measured accurately and without mechanical contact by an optical interferometer. The apparatus sneses the movement of interferen...

This paper reports the analysis of a harmonic measurement method which can be used to determine the threshold current of semiconductor lasers accurately. The experimental method and results are given, and compared with those of other methods.

Studies were done to find an accurate method for measuring weight of humans, animals, and objects in weightlessness. Present methods used to determine weight cannot be applied in weightlessness. An initial probe to determine the feasibility of measuring v...

A variety of instruments and techniques are used to study and measure the gases in volcanic plumes. Regardless of the approach an accurate measure of plume velocity must be made. Wind measurements made near the elevation of the plume are considerably more...

This project was undertaken to develop a faster, more accurate method to determine the composition of 304L vacuum arc remelted (VAR), corrosion resistant steel. An accurately measured composition is required to predict the 304L ferrite content, which must...

Accurate knowledge of lightpath and parallelism of cuvettes used in spectrophotometry is one of the indispensable parameters which must be determined when accurate transmittance measurements of liquid materials is considered. A description is given of the...

The objectives of this study were to develop rapid and accurate analytical methods for the determination of nitrate and sulfate in atmospheric particulate samples, and to compare the new methods developed with current spectrophotometric methods for nitrat...

The purpose of filtering data, for range safety systems, is to remove unwanted noise from the measured data in order to determine, as accurately as possible, the space position, velocity and acceleration of the target.

Apr 21, 2011 ... Blood lactate measurement is used by sport scientists, coaches, and athletes to accurately determine heart rate training zones and recovery. ...

total plasma pressure, which the magnetometer can determine accurately. The difference between the directly measured solar wind plasma pressure and the ...

The data also indirectly contribute to accurate determination of water vapor and bounding chemical reaction rates. Airborne, high-frequency, in situ ...

... Optical evaluation is the least accurate contact status parameter and is determined via a Panasonic model GP-KR222 industrial color CCD camera ...

Measurements of antenna impedance are frequently used to determine the properties of plasmas which occur in the ionosphere and during the atmospheric reentry of space vehicles. An accurate understanding of the performance of antennas in plasmas is require...

... In order to make an accurate on wafer direct current (DC) measurement, it is ... High current semiconductor devices may draw currents of several ...

Measurements have been made on four lines in the vibration-rotation and ten lines in the pure rotation region of the water vapor spectrum to determine the individual line intensities and half-widths. The major effort of the experimental procedure has been...

Accurate determination of the position of an artillery piece, for example, using sound measurement systems through measurement of the muzzle noise requires access to wind data that is representative of the portion of the air from where the sound wave is p...

An experiment was performed to determine how accurately accelerometers could measure the coning angle of a spinning and coning laboratory gyroscope. Tests showed that coning angle measurements were well within expected results. The accelerometer can be us...

A new method to determine the volume solids of paints and coatings based on the measurement of dried film thickness over a known area has been studied in this work. It was compared to the American Society for Testing and materials method D 2697-73 Volume ...

Laboratory and field experiments were conducted to evaluate whether a volumetric measuring device could reliably provide accurate sea scallop meat count estimates at sea. A one-pound coffee can was selected as the standard volumetric sampling measure. Cal...

The accurate determination of isotope abundances by any method requires that the measuring systems be calibrated using well characterized isotope reference materials. The National Bureau of Standards (NBS) and the Central Bureau for Nuclear Measurements (...

Two methods for the determination of photolysis rates of ozone are considered. The conventional method using the chemical actionometer does not produce accurate and continuous measurement results. A photoelectric detector, simpler and cheaper, with interf...

New measurements now permit a comparison to be made with various theories for the propagation characteristics of the strip acoustic surface waveguide in order to determine which theory is the most accurate. These new measurements are presented in the fram...

Report covers the testing and evaluation of the prototype side-looking radar presentation viewing and measuring instrument to determine its capability for making accurate measurements on radar film transparencies. Data on the accuracy of the instrument ar...

An accurate determination of the bone mineral mass of lumbar vertebrae is needed as a measurement of bone demineralization in weight-bearing bones in addition to the more routinely performed measurements of the extremities. A system was developed utilizin...

The angle {beta} is the most accurately measured quantity that determines the Unitarity Triangle. In this article I review the various measurements of this angle performed by the BaBar Collaboration, and discuss their implications in the search for new physics.

The accurate measurement of peak sound pressures is important for the audiological protection of workers exposed to high sound pressures and both British and European legislation imposes requirements on employers to measure high level impulsive noise and ...

An accurate method of measuring liquid water in snow covers is required to determine the properties of wet snow. The dielectric properties of wet snow must be utilized to adequately measure its liquid water content. In this study the effect of liquid wate...

We have studied the spectroscopy of OH and have made accurate determination of many physical parameters which are needed in deducing OH concentrations from absorption and fluorescence measurements. The question of ozone interference in fluorescence measur...

This thesis examines the Coast Guard Ports, Waterways and Coastal Security (PWCS) Outcome Measure. The first goal was to determine if the current measure accurately reflects Coast Guard mission effectiveness in achieving homeland security. The PWCS Outcom...

With a view to determining the deformations and displacements of the ring foundation of the ITEP accelerator, the method of very accurate distance measurements by means of invar wires and strips is described. Measurement errors are analyzed. This method h...

A machine vision method for accurately measuring the diameters of cylindrical shafts is presented. Perspective projection and the geometrical features of cylindrical shafts are modeled in order to enable accurate measurement of shaft diameters. Some of the model parameters are determined using ...

... Accession Number : ADP000252. Title : An Accurate Determination of the Thermal Conductivity of Argon at High Temperatures,. ...

... Title : ACCURATE DETERMINATION OF THE MOMENT OF INERTIA AND CENTER OF GRAVITY POSITION OF WIND TUNNEL MODELS. ...

Students measure a variety of objects in both metric and English systems. It is recommended that everyone in the group take each measurement and they then average them to obtain the most accurate measurement for the item. The next step is to create the ratios, convert them to decimals to two places and then average ...

... AD0244448. Title : A PROCEDURE FOR THE ACCURATE MEASUREMENT OF INFRARED DICHROISM OF ORIENTED FILMS. ...

... Title : A METHOD OF ACCURATELY MEASURING DYNAMIC STABILITY DERRIVATIVES IN TRANSONIC AND SUPERSONIC WIND TUNNELS,. ...

There are three basic research objectives: (1) To develop an accurate personal and area radon/thoron (222Rn/220Rn) detector for accurate measurement of the exposure to low airborne concentrations of these gases during remediation at Fernald. These are to be used to determine atmo...

An accurate and high-throughput assay for collagen is essential for collagen research and development of collagen products. Hydroxyproline is routinely assayed to provide a measurement for collagen quantification. The time required for sample preparation using acid hydrolysis and neutralization prior to assay is what limits the current method for ...

The combination of high-precision gamma-ray measurements with precision mass determinations allows determination of fundamental constants, such as the neutron mass and the molar Planck constant. The basic principle of these measurements will be discussed. Experimental results from measurements ...

The combination of high-precision gamma-ray measurements with precision mass determinations allows determination of fundamental constants, such as the neutron mass and the molar Planck constant. The basic principle of these measurements will be discussed. Experimental results from measurements ...

Rotational transitions for CH3OH were measured in the 5-13 GHz range with a precision and accuracy of a few kilohertz or less using a Flygare-Balle type pulsed-beam Fourier transform microwave spectrometer. The accurate center frequencies measured should be useful in determining accurate ...

A high-resolution simulation of stratospheric long-lived trace gases is subsampled in ways resembling various commonly used measurement platforms. The resulting measurements are analyzed with respect to whether they allow an accurate determination of stratospheric tracer relationships, as a prerequisite for a ...

A high-resolution simulation of stratospheric long-lived trace gases is subsampled in ways resembling various commonly used measurement platforms. The resulting measurements are analyzed with respect to whether they allow an accurate determination of stratospheric tracer relationships, as a prerequisite for a ...

Accurate characterization of the incident neutron spectrum is an important requirement for precise Rietveld analysis of time-of-flight powder neutron diffraction data. Without an accurate incident spectrum the calculated model for the measured relative intensities of individual Bragg reflections will possess systematic errors. We ...

The density determination of a small solid object with a mass of only a few hundred milligrams is always a difficult and often an ellusive measurement. The advent of highly accurate hydrostatic weighing techniques and the density scale based on solid obje...

A spectrophotometric method for determining uranium in nuclear waste was developed using 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (bromo-PADAP). By extracting the color into Aliquat-336 it was possible to accurately measure U at the 1 mu g level. No ...

Accurate specific gravity measurements are required for the analysis of physical properties of marine sediments. Application of the bottle pycnometer technique, the standard determination method, is time-consuming, tedious, and perhaps subject to inaccura...

A simple and accurate spectrophotometric method is devised for determining Ru. The Ru is oxidized to tetroxide form and extracted with CHCl/sub 3/. It is stripped from the extracting solvent with NaCNS and the ruthenium thiocyanate complex is formed. Maximum absorbance is measured at 590 m mu . (auth)

Three spectrophotometric/colorimetric procedures have been developed for rapid determination of hydrocarbons, vegetable oils, animal fats, waxes, soaps, greases and related matter in aqueous phase. The analytical procedures are applicable to measurement o...

The ability to determine accurate global sea level variations is important to both detection and understanding of changes in climate patterns. Sea level variability occurs over a wide spectrum of temporal and spatial scales, and precise global measurement...

Determining the impact(s) on fish and other aquatic organisms of exposure to endocrine disrupting compounds (EDCs) is critical for determining the risks that these chemicals pose. However, to accurately evaluate these risks, beyond simply measuring a �before and after exposure� ...

This paper refers to a collaborative project to develop an accurate attitude determination system based on the combined use of gyros and star-crossing detectors. The latter are attractive for earth-pointing satellites but the intermittent nature of the da...

Burn-up an important parameter during evaluation of the performance of any nuclear fuel. Among the various techniques available, the preferred one for its determination is based on accurate measurement of a suitable fission product monitor and the residua...

Accurate models of the automatic voltage regulating system and the turbine system are required for investigating the dynamic behavior of power plants. The determination of such models with the help of noise techniques is described. Measurements were perfo...

A method has been developed for the accurate and precise determination of silver in cyanide electroplating baths. The procedure involves wet ashing an aliquot of solution and then measuring the silver by controlled-potential coulometry (CPC). The precisio...

Tonnage measurements on plant thickeners over a two-month period indicate the need for a reference if accurate results are to be obtained from thickener experiments under variable plant conditions. To determine the maximum throughput it is necessary to me...

The project was undertaken to determine the actual values of the electrical loads at six major types of Veterans Administration buildings and to produce accurate design values for future use. From the electrical loads measured and recorded at nineteen sep...

A method to measure cortisol in blood plasma is developed using tritium as a tracer. Thin-layer chromatographer is used for very accurate separation and determination of cortisol free of impurities. Results show a concentration of 14,02+-5,79 mu g/100ml f...

A sensitive and stable Seebeck calorimeter is described and used to determine the heat of formation of PdD. This determination can be used to show that such calorimeters are sufficiently accurate to measure the LENR effect and give support to the claims.

A simple, direct and accurate method for charge determination of heavy, multicharged cosmic ray particles is presented. The method is based on the measurement of the portion of the particle range over which a track can be produced by a heavy particle in p...

almanac ephemeris, and other system data to all satellites for retransmission to the user segment, satellite navigation system that enables users to accurately determine 3-dimensional position, velocity measurements along with the received ephemeris data (satellite orbit data) to determine the user's three

There is no analytical method for measuring the amount of carbon pigment in high-gloss black enamels and lacquers, and no accurate procedure for determining the total pigment content of any coating that contains carbon. The colloidal suspension of extreme...

A simulation is described of a proposed microwave reflectance measurement in which the half scale reflector is used in a compact range type of application. The simulation is used to determine an acceptable aperture taper for the reflector which will allow...

Exact mass measurements were obtained for a variety of potassium- and tetra-n-butylammonium organotrifluoroborates using commercially available organic sulfate salts as internal reference standards. Accuracies were determined within 5 ppm using a sector ESI mass spectrometer operating in the negative ionization mode.

Discusses a simple procedure for determining our exact location on Earth based on the motion of celestial bodies and latitude and longitude. This hands-on activity requires students to design and construct an apparatus that will produce accurate measurements. The materials required are a knitting needle, a tape ...

The study determined that an in-stack venturi can accurately measure volumetric flow in stacks with a severe cyclonic flow profile. The design requirements of the venturi are described in the report. The report also describes a low head loss, egg crate-sh...

This study establishes guidelines for determining how accurately aircraft position and velocity should be measured on a Tactical Aircrew Combat Training System (TACTS) range. The method of analysis is based on the sensitivities of Measures of Effectivenes...

A structural alignment sensor (SAS) was developed for use with large deployable antenna systems for contour measurement and/or active control. The SAS is a laser ranging system using frequency modulation and accurate phase measurement to determine distanc...

The design and properties of an electronic humidity measuring system for the determination of the water-vapor content in air or other gases are described. The system is based on an integrated silicon dew-point sensor. After a discussion of the increasing ...

Analysis of projectile-cannon interface problems quite often requires accurate determination of the projectile in-bore and launch motion. Microwave interferometry and Doppler radar are the two most commonly used instrumentation and measurement techniques ...

The report describes the evaluation of Measurement Assurance Experiments (MAEs) for determining the quality of within-laboratory test data. A general self-evaluative quality system is outlined and objective measures of data quality, precision and/or accur...

A simple, inexpensive, yet accurate method for measuring the dynamic complex modulus of elasticity is described. Using a 'free-free' bar selectively excited in three independent vibrational modes, the shear modulus is obtained by measuring the frequency o...

A review is given of nonleptonic decays of D mesons. Measurements of the psi (3772), the accurate determination of D masses and their consequences, inclusive measurements and tagged events are given. 36 references. (ERA citation 03:034070)

Pressure and particle velocity, parameters which yield to relatively accurate experimental measurements, provide direct ties to theoretical studies, as well as to determining tables of coefficients for an equation of state. At Lawrence Livermore, pressure...

Pesticides on household surfaces are a source of exposure to children. Accurate measurements of residues on surfaces are needed to determine amounts available for transfer to foods and other objects handled or eaten by a child. Wiping the surface with a solvent has been the acc...

Measurements of exclusive semileptonic D decays provide an accurate determination of the hadronic form factors entering in these decays.

This study attempts to determine the existence of a 'de facto de minimis' threshold as it is revealed by examining government activity with respect to low-level risks that are clearly visible and accurately measured. The study was restricted to the examin...

A magnetometer utilizing magnetic resonance techniques is designed for measuring weak fields quickly and accurately. The apparatus is especially suitable for determining local variations of the earth's magnetic field, as in geophysical prospecting from an airplane. (D.L.C.)

Ground tests of the Helicopter Remote Wind Sensor (HRWS) were run at Biggs Optical Range (BOR) to determine the suitability of the HRWS for measuring low-level cross winds for surface launched weapons ballistics. The HRWS accurately measured winds under a...

Flow measurement is a critical issue when it comes to determine the amount of fluid purchased and sold, especially for oil, gas and water supply companies. An accurate flow measurement is essential both in lab experiments and in many engineering applications such as power and chemical plant and fluid engineering ...

The development of an advance measuring apparati for diffusible hydrogen content based on electronic, optical and magnetic property measurements was investigated. The effort was to develop a rapid and accurate determination for both steel weld metal diffu...

A modified spindle stage refractometer is described for measuring the refractive indices of transparent materials. Determinations are made on small, single crystal fragments 50 mu m in size and yield accurate data on the principal refractive indices over ...

A method for measuring velocity distribution functions in rarefied gas flows was investigated. The technique is a direct determination, accurate to within one percent, which does not significantly disturb the flow under investigation. It is shown that acc...

The purpose of this work consists in the design a radon-222 gas measurement system utilizing a surface barrier detector with the objective to obtain a more accurate measurement for this isotope through an alpha particle spectrum and so to address as to av...

A measurement apparatus has been constructed for the accurate determination of the densities of liquids and solids. A ball to a roller-bearing, made of stainless steel, is weighted in air and, hydrostatically, in a liquid of interest, using an electronic,...

Accurate measurement of the primary galactic cosmic ray species energy dependence in the regime beyond approx. 500 GeV/a is difficult due to the low flux and the limitations of energy measurement techniques. However, such observations are essential to res...

The purpose of this thesis was to construct an experiment that can accurately determine a target's laser radar cross-section. A laser radar cross-section (LRCS) is a measure of the average amount of optical power scattered by a target, and is analogous to...

During normal working activities or in accidental situations, when the introduction of radioactive gamma emitters is of non-negligible amount, accurate determination of effective committed dose equivalents based on direct measurements of internal contamin...

The blood alcohol content of an individual suspected of driving while intoxicated is often measured through the analysis of a breath sample using an evidential breath tester (EBT). Two factors determine the ability of an EBT to provide an accurate analysi...

Ways are considered of enhancing the accuracy of thermoelectric measurement of temperature. The high accuracy method proposed for monitoring the temperature of an aggressive medium can determine the temperature, irrespective of the instantaneous values of the Seebeck and Peltier coefficients, i.e., irrespective of the uncontrolled thermocouple sensitivity, ...

A single crystal method of lattice constant determination is presented in which several errors are minimized or corrections computed. The measurement is based on Bond's methods. Because the values of the lattice parameters of GGG substrates and substitute...

The precise measurement of the length of an optical fiber at various stages of processing, cabling, handling and installation yields important information which can be used to help to predict the long-term mechanical and optical performance of the finishe...

This study of an Air Force Integrated Readiness Measurement System was undertaken to assist the Air Force in the determination of its readiness posture. The goal of AFIRMS is to provide readiness information which is accurate, timely, and germane to wing ...

By measuring the ratio of atomic fluorescence intensities of anti-Stokes direct line fluorescence to Stokes direct line fluorescence for thallium (377.6 nm to 535.0 nm lines), it is possible to determine the temperature of flames. The method is accurate a...

This note presents a calibration-independent method for accurate complex permittivity determination of liquid materials. There are two main advantages of the proposed method over those in the literature, which require measurements of two cells with different lengths loaded by the same liquid material. First, it eliminates any ...

This note presents a calibration-independent method for accurate complex permittivity determination of liquid materials. There are two main advantages of the proposed method over those in the literature, which require measurements of two cells with different lengths loaded by the same liquid material. First, it eliminates any ...

We present a fast and accurate approach for simultaneous determination of both the mean diameter and refractive index of a collection of red blood cells (RBCs). The approach uses the peak frequency of the power spectrum and the corresponding phase angle obtained by performing Fourier transform on the measured angular distribution of ...

We present a fast and accurate approach for simultaneous determination of both the mean diameter and refractive index of a collection of red blood cells (RBCs). The approach uses the peak frequency of the power spectrum and the corresponding phase angle obtained by performing Fourier transform on the measured angular distribution of ...

A simple and accurate method for determining total calcium in small tissue samples using aequorin is described. The method involves measuring the calcium-induced luminescence of aequorin with the tritium channel of a liquid scintillation counter. The sensitivity of the method and specificity of the method for calcium have been ...

A new, alternative method determines petroleum fluid pour points with [+-] 1 C. precision and better accuracy than the standard ASTM D-97 procedure. The new method measures the pour point of transparent fluids by determining wax appearance temperature (WAT). Also, pour points of waxy crude oils can be determined by ...

This activity is designed to replicate Eratosthenes' experiment in which he measured the circumference of the Earth. Students at two different schools will work in small groups to take accurate measurements at a specific time and use their knowledge of geometry and trigonometry to determine the ...

The study purposed to determine if a navigation in total knee arthroplasty (TKA) leads to accurate limb alignment and component position than the conventional technique as measured by full length standing radiographs and to evaluate the correlation between navigation and radiographic measurements. A total of 160 ...

This paper reviewed the research literature on graduation rates in U.S. high schools to evaluate and assess the findings. The methodology employed was to determine the measuring method that researchers used in reaching their findings. The strengths and weaknesses of the method employed were then analyzed. Flaws and inaccuracies were examined and discussed. ...

An accurate method for routine determination of silica in silicate materials is proposed. It is based on the decomposition of the silicate materials with LiCO(3)/H(3)BO(3) flux, stabilization of the silica with fluoride, and the use of a suitable calibration, measurement and computation pattern. PMID:18962618

Precise and accurate density determination requires weight measurements in air and water using sufficiently precise analytical balances, knowledge of the densities of air and water, knowledge of thermal expansions, availability of a density standard, and a method to estimate the time to achieve thermal equilibrium with water. Density ...

Due to the essential role played by these metals in the biological functions, their accurate determination in natural samples is important. Using a 14 MeV neutron generator for activation, especially the analysis of these elements becomes problematic, cau...

Using surface micromachined samples, we demonstrate the accurate measurement of cantilever beam adhesion by using test structures which are adhered over long attachment lengths. We show that this configuration has a deep energy well, such that a fracture equilibrium is easily reached. When compared to the commonly used method of ...

A method is presented for modeling any bipolar transistor. The method uses the integral charge control model devised by Gummel and Poon (1970), the most general model that fits the computer aided design requirements. The model is accurate for static and dynamic simulations in low and high power applications. Measurements and techniques necessary to ...

The determination of the magnetic moment of 9Be from the measured ratio of the nuclear to the electron g-factors gI/gJ in 9Be is presented. The obtained result ?(9Be)=-1.17743159(3)?N is two orders of magnitude more accurate than the presently accepted value.

... How will we determine whether a State's work verification procedures ensure an accurate work participation measurement? 261.64 Section...AND HUMAN SERVICES ENSURING THAT RECIPIENTS WORK How Do We Ensure the Accuracy of Work...

Methods are proposed that exploit a microgravity environment to obtain highly accurate measurement of contact angle. These methods, which are based on our earlier mathematical results, do not require detailed measurement of a liquid free-surface, as they incorporate discontinuous or nearly-discontinuous behavior of the liquid bulk in ...

There are three basic research objectives. (1) To develop an accurate personal and area radon/thoron (222Rn/220Rn) detector for accurate measurement of the exposure to low airborne concentrations of these gases during remediation at Fernald. These are to ...

Isotopic labeling of food has been widely used for the measurement of Fe absorption in determining requirements and evaluating the factors involved in Fe bioavailability. An extrinsic labeling technique will not accurately predict the total Fe absorption from foods unless complete isotopic exchange ...

Several areas related to the successful and accurate application of modified line reversal are discussed. Initially, generalized modified line reversal equations are developed. A review of basic line reversal theory is presented followed by development of correction factors for optical system effects. Image size and their effect on accurate ...

... Title : AN ACCURATE LABORATORY TEST SYSTEM USING COMMERCIAL EQUIPMENT FOR EDDY CURRENT MEASUREMENTS. ...

Energy expenditure can be calculated via measurement of oxygen consumption and carbon dioxide production. Precise measurement of expired gas concentrations and volume is required for this determination. For a given gas concentration measurement system, the establishment of a model is a good way to effectively use ...

Two methods have been developed to determine temperature noninvasively within engineering components by neutron diffraction. The integrated intensity of a diffraction line depends on temperature through the Debye-Waller factor. The angular position of the line, in the absence of an applied load, depends on temperature through the thermal expansion coefficient. Temperature may ...

Measurement of the special nuclear material (SNM) content of a vessel containing a homogeneous liquid solution consists of three principal operations: (1) measurement of liquid mass (either by weighing directly or by measuring the volume, temperature, and specific gravity); (2) obtaining a representative sample of the vessel contents; ...

A new method was developed to determine both diameters and indices of refraction and hence the birefringence of cylindrical textile and industrial fibers and bundles by measuring intensity patterns of the scattered light over an interval of scattering angles. The measured intensity patterns are compared with theoretical predictions ...