A highly simplified atomic absorption procedure for the determination of stable strontium in fluid milk, milk powder, and alfalfa is evaluated. A comparison is made between the atomic absorption method of additions and the standard curve method. A suggested stepwise procedure is given. ...
Energy Citations Database
... Title : Manufaturing Methods and Technology Measure for Plastic Housings for C-2328-B-GRA-39 and C-2329-B-GRA-39 Radio. ...
DTIC Science & Technology
... Title : Manufacturing Methods and Technology Measure for Plastic Housings for C-2328-B-GRA 39 and C-2329-B-GRA-39 Radio. ...
... Title : Manufacturing Methods and Technology Measure for Plastic Housings for C-2328-B-GRA-39 and C-2329-B-GRA-39 Radio. ...
Two approaches were taken to calculate the photoionization rates for the ionosphere. First, a detailed line-by-line deposition for the range 1 to 1215A was carried out by using experimental or theoretical absorption and ionization cross sections for the atmospheric species. The second approach was to contnact these lines into bands having approximately 11 bands for ...
The usefulness of remote sensing techniques for monitoring the gaseous and particulate emissions from stationary sources is analyzed. The present status of active and passive remote monitoring instruments is evaluated. This study confirms that the technique of differential absorption has the best sensitivity for the single-ended measurement of gaseous and particulate ...
Background information is given on the size and extent of the gasoline marketing industry and the magnitude of hydrocarbon vapor emissions. The principal sources of emissions, tank truck filling at bulk terminals, service station storage tank filling and vehicle refueling are characterized. Vapor control techniques for bulk terminals are described: compression, refrigeration, ...
Results of a research program to develop methods of controlling both the exhaust-air noise and the mechanical noise of a stoper drill used for roof bolting operations in coal mines are described. Several systems have been designed and tested that reduce the noise level to the low 90 dbA range. These systems employ a muffler for exhaust noise, an acoustic barrier for the ...
... plastic housings for the AN/GRA-39B Radio Telephone. Descriptors : *PLASTICS, *HOUSINGS, *RADIOTELEPHONES, MANUFACTURING. ...
The AFOSR program on Gas Phase Spectrometry, Trace Analysis of Elements and Combustion Diagnostics at the University of Florida consists of fundamental, instrumental, methodological and applied studies of atomic and molecular emission and luminescence and atomic and molecular absorption spectrometric methods, particularly as these measurement ...
A numerical method for reproduction of x-ray absorption coefficients in a three-dimensional object is presented. A series of radiographs are taken through 180 deg rotation of the object. From these radiographs the absorption coefficients were determined using the method of the average operator. The formulation of ...
NOS, Indian Head has proposed a study of steam absorption air conditioning. The utilization of waste steam for absorption air conditioning of Navy facilities is discussed and absorption and compression systems compared. Accordingly, the specific study and costs for the singular application at NOS, Indian Head is not discussed. Instead, ...
The Graphical Facility Information Center (GraFIC{trademark}) is an information system that provides an inexpensive and flexible method of remotely verifying complete {open_quotes}up-to-the-minute{close_quotes} inventory status of stored items and facility assets. In addition, GraFIC{trademark} provides features needed for day to day ...
DOE Information Bridge
strained problems, Gra�na Drummond and Svaiter [10] extended the steep- ... convergence analysis, strong convexity of the vector-valued objective func- ...
E-print Network
The semi-empirical calibration method applied to the neutron porosity tool is presented in this paper. It was used with the ODSN-102 tool of 70 mm diameter and equipped with an Am-Be neutron source at the calibration facility of Zielona Gra. Poland. inside natural and artificial rocks: four sandstone, four limestone and one dolomite block with borehole ...
NASA Astrophysics Data System (ADS)
Interactions between GRA proteins of dense granules in Toxoplasma gondii and host cell proteins were analyzed by yeast two-hybrid technique. The cMyc-GRA fusion proteins expressed from pGBKT7 plasmid in Y187 yeast were bound to host cell proteins from pGADT7-Rec-HeLa cDNA library transformed to AH109 yeast by mating method. By the ...
PubMed
Tunable radiation in the 0.43 ..mu..m to 0.52 ..mu..m spectral region was produced by frequency doubling a tunable dye laser in ZnSe. At wavelengths shorter than the bandgap of ZnSe (lambda < 0.46 ..mu..m), second-harmonic power was limited by crystal absorption, whereas for longer wavelengths the second-harmonic power was as much as 1500 times larger than that predicted ...
A Reactive Atmosphere Process - Bridgman crystal growth system has been placed in operation. The 10.6 ..mu..m absorption has been measured for several KCl crystals grown in this system. The crystals show an absorption coefficient of 0.0004/cm-0.0006/cm. The effect of ionizing radiation on the 10.6 ..mu..m absorption of KCl has been ...
The Surface Extended X Ray Absorption Fine Structure (SEFAFS) spectrum of an electrochemically deposited ad-layer of copper on a gold (111) electrode immersed in solution and under potential control was obtained by employing fluorescence detection and gra...
National Technical Information Service (NTIS)
Three basic methods and five different solvent systems were used to clean radioactive silicone oil from the surfaces of aluminum tabs. The cleaning effectiveness of these different combinations is compared. (GRA)
The process of finding one-dimensional Cagniard models to fit experimental magnetotelluric data in a least squares sense is investigated. A modification to the Newton-Raphson method for non-linear regression is developed. This method together with the gra...
The objective of this work is to examine gamma ray heating in commercial nuclear power reactors. Design methods, computer codes, data libraries, and experimental data are examined. Some recommendations are made as to extensions of existing methods and codes, and some new experiments. (GRA)
An empirical method for obtaining air pollution frequency distributions from long-term average concentrations is described. The method was verified in the Rijnmond area and two other industrial/urban areas in the Netherlands. With the aid of the given gra...
The purpose of this report is to estimate the diffusion characteristics and downwind concentrations of hydrogen fluoride (HF) after it is released from an airplane. The author conducted an exhaustive search of USAFETAC's in-house technical library to determine a method or methods adaptable to this problem. (GRA)
The Graphical Facility Information System{trademark} (GraFIC{trademark}) is an intelligent facility and information management system that provides near real time, verifiable status of safeguarded materials in a nuclear storage facility. GraFIC{trademark} is a versatile software package that is designed to operate in a distributed computing environment and ...
The recovery of the atmosphere, following its disturbance by any of several natural or manmade events of the magnitude of a solar-flare impingement or a nuclear burst, may be characterized in terms of certain extremely important chemical and physical processes. It is the purpose of this Handbook to provide the best available detailed information concerning both chemical and physical ...
... Descriptors : (*POLYETHYLENE PLASTICS, ABSORPTION), (*CARBON BLACK, ABSORPTION), LIGHT, TEST METHODS, ORGANIC MATERIALS ...
Wind turbine systems of the past are reviewed and wind energy is reexamined as a future source of power. Various phases and objectives of the Wind Energy Program are discussed. Conclusions indicate that wind generated energy must be considered economically competitive with other power production methods. (GRA)
Coefficients of thermal expansion of graphite/carbon matrices and fuel compacts for HTGR were measured by a quartz push-rod dilatometer at a temperature range of 100 - 700 exp 0 C. Graphite/carbon matrices were prepared by such method that needle coke gra...
Evidence for some connection between weather and solar related phenomena is presented. Historical data of world wide temperature variations with relationship to change in solar luminosity are examined. Several test methods for estimating the statistical significance of such phenomena are discussed in detail. (GRA)
Methods for large-scale microencapsulation of bacteria and nutrients into microbeads with small enough diameters to travel through aquifers have been developed at the University of Idaho. Both free and immobilized cells of Flavobacterium ATCC 39723, a gra...
A fabrication method for single crystal niobium cavities of the TESLA shape was proposed on the basis of metallographic investigations and electron beam welding tests on niobium single crystals. These tests showed that a cavity can be produced without gra...
The 'Regulation and Policy Matrices' (Matrix) was developed in response to a need for an improved method of identifying U.S. Environmental Protection Agency's (EPA) regulations and policies applicable to grants awarded under the Municipal Construction Gra...
The document includes test methods for the Compliance Test Program that will verify the Nuclear Hardening design integrity of the AN/URC-78(XE-2)/V Radio Set. (GRA)
Contents; Oil spill problem-(Magnitude of oil problem, Refinery and terminal operations, Platform operations, Biological effects); Legal response; Oil characteristics; Prevention and control - treatment; Chemical treatment; Physical methods or treatment. (GRA)
A formulation which can simulate all mean velocity gradients in a turbulent flow field is introduced. Methods for estimating and minimizing numerical anisotropy errors are suggested. The computerized simulation results are detailed, including two mean gra...
Hybrid brushes composed of two liquid polymers, poly(dimethylsiloxane) (PDMS) and a highly branched ethoxylated polyethylenimine (EPEI), were synthesized on Si wafers by the 'grafting to' method and by applying a combinatorial approach (fabrication of gra...
An assessment of myocardial viability in a subject is performed by acquiring an MR image which distinguishes infarcted myocardium from normal myocardium. A contrast agent is used and after a waiting period, a cardiac-gated segmented inversion recovery gra...
Human motion sequences that are generated by computer algorithms may contain abrupt transitions: places where consecutive body positions would require physically impossible or stylistically illegal moves. We use graph-- theoretic methods to learn the 'gra...
The purpose of this document is to establish performance requirements and methods of test for batteries used in personal/portable transceivers by law enforcement agencies. The requirements of this standard are stated with reference to the transceiver model with which the batteries are intended to be used. (GRA)
The report gives results of an evaluation of the potential of thermal agglomeration as a means of enhancing the collection of fine particle emissions. Available theoretical and experimental information indicates that this method of particle agglomeration offers no useful avenue for improving fine particle control. (GRA)
This report presents guidelines to assist resident engineers in monitoring compliance with the environmental provisions of construction contracts. It describes general environmental responsibilities of the resident engineer; sources of environmental pollution; techniques for providing environmental protection; and methods of evaluating a construction site for potential ...
A diagnostic sequence for testing ILLIAC IV PE (Processing Element) is discussed. Three possible levels of graph representation are described, from each of which a set of test paths can be generated by the Path Generating Method. Using the first level gra...
This report develops a theoretical model to be used for forecasting energy demand by individual industries; it also discusses alternative specifications of functional forms in the theoretical model and implements the model using data for several two-digit (SIC) industries. (GRA)
In the investigations reported, optical methods are used to determine the photo-ionization energy and the concentration of defects created by neutron and gamma radiation. The changes in electrical characteristics of the diodes are investigated, and a comparison is made between various types of diodes. (GRA)
A survey of methods of testing the response of materials to intense thermal radiation is given. Particular emphasis is given to simulation of the thermal flash from a nuclear weapon with a Quartz Lamp Bank. Results of several tests are shown. (Author) (GRA)
The purpose of this investigation was to determine whether or not industry is proceeding independently and at a rate sufficient to provide maximum and earliest domestic production to support the nation's crude oil requirements. (GRA)
We evaluated two automated methods for measuring blood levels of lactates with Integra 800 (Roche Diagnostics) and ABL 725 (Radiometer). Our evaluation had shown a within run imprecision of 1% (Int�gra 800) and 2% (ABL 725) and a between-assay imprecision of 2% (Int�gra 800) and 5% (ABL 725). The two methodologies appeared very ...
There is a requirement for realtime specification of riometer absorption in the polar cap region using proton flux measured with satellite-borne detectors. The proton flux data from the NOAA series of satellites and the Thule 30 MHz riometer data satisfy this requirement. A study was done to correlate these two parameters within state-of-the-art theoretical reasoning. ...
Magnetic x-ray circular dichroism in x-ray absorption has been used to investigate the ternary multilayer system, Fe Co Pt. Samples were prepared by planar magnetron sputter deposition and carefully characterized, using a variety of techniques such as gra...
The work discussed in this report concerns the propagation of an electromagnetic pulse (EMP) through the high altitude EMP source region. The objective of this work has been to obtain experimental data on the nonlinear absorption of an EMP by conduction currents within the high altitude EMP source region that could be compared with theoretical predictions. ...
The report is a compendium of selected graphs, charts, equations, and relations useful in the analysis of electromagnetic blackout caused by nuclear explosions. Information is provided on weapon outputs, ionization source functions, deionization, absorption, phase effects, and noise. The report also contains sections listing atmospheric properties, physical constants, ...
... THE ABSORPTION AND FIELD STRENGTH OF RADIO WAVES FOR OBLIQUE INCIDENCE UPON THE IONOSPHERE-GEOMAGNETISM AND ...
... Title : IONOSPHERIC RADIO WAVE ABSORPTION MEASUREMENTS BY THE RADIO ASTRONOMIC POLARIZATION METHOD ...
Contents: Theory of atomic absorption measurements; Atomic-absorption spectrophotometers; The preparation of absorbing media. General principles; Flames; Graphite cuvettes; and Some special applications of the atomic-absorption method.
... Title : Resonance Line Absorption Method for Determination of Nitric Oxide Concentration. Descriptive Note : Final rept.,. ...
