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Oscillator Strengths and Transition Probabilities fro 3288 Lines of Fe I
Report of a homogeneous set of intensity-related data calculated for 3288 spectral lines of Fe I in the region from 2100 to 9900 angstroms. The quantities tabulated in the present monograph include log (g__), log (gf), gf,f,gA, and A. Since recent investigations do not support excitations corrections in the case of Fe I and certain other spectra, the present tabulation incorporates a removal of that normalization function. This recalculation affects the values for all lines whose upper energy levels lie above 46000 cm -1 and should significantly improve the internal consistency of the present data.
Date:
March 1968
Creator:
Corliss, C. H. & Tech, J. L
Object Type:
Report
System:
The UNT Digital Library
Revision of the NBS Tables of Spectral-Line Intensities Below 2450 Å
From Abstract: "A calibration is applied to the intensity measurements of the 1400 lines below 2450 A in the NBS Tables of Spectral-Line Intensities. Tables of the new values are presented with the lines arranged by elements and by wavelengths."
Date:
July 7, 1967
Creator:
Corliss, Charles H.
Object Type:
Report
System:
The UNT Digital Library
Experimental Transition Probabilities for Spectral Lines of Seventy Elements: Derived from the NBS Tables of Spectral-line Intensities
From introduction: "The goal of the work was to provide lists of the principal lines of the elements generally observed under ordinary conditions in arc spectra, together with their relative intensities on a true scale of relative energy."
Date:
July 20, 1962
Creator:
Corliss, Charles H. & Bozman, William R.
Object Type:
Report
System:
The UNT Digital Library
Hearing Aids
From Abstract: "This publication contains information, useful to the hard of hearing, on several topics relating to hearing and hearing aids. This publication represents an extensive revision of NBS Circular 534, Hearing Aids. It includes new material based upon research conducted at the National Bureau of Standards during the intervening years."
Date:
October 1970
Creator:
Corliss, Edith L. R.
Object Type:
Report
System:
The UNT Digital Library
Legibility of Alphanumeric Characters and Other Symbols: 2. A Reference Handbook
Major psychological findings and data in the field of the legibility of alphanumeric characters and other symbols.
Date:
February 10, 1967
Creator:
Cornog, D. Y. & Rose, F. C.
Object Type:
Report
System:
The UNT Digital Library
Specific Heats and Enthalpies of Technical Solids at Low Temperatures: A Compilation from the Literature
Report giving tables of the specific heat, cp, and the enthalpy of 28 metals, 3 alloys, 8 other inorganic substances, and 8 organic substances in the temperature range, 1º to 300º K.
Date:
October 3, 1960
Creator:
Corruccini, Robert J. & Gniewek, John J.
Object Type:
Report
System:
The UNT Digital Library
Thermal Expansion of Technical Solids at Low Temperatures: A Compilation From the Literature
Report giving tables of the linear contraction relative to 293 ºK, (L293ºLT)/L293, and the linear expansion coefficient, dL/L293dT, of thirty elements, forty-five alloys, twenty-two other inorganic substances and twenty plastics and elastomers in the temperature range, 0 to 300 ºK.
Date:
May 19, 1961
Creator:
Corruccini, Robert J. & Gniewek, John J.
Object Type:
Report
System:
The UNT Digital Library
Extension of Programs for Calculations of Great Circle Paths and Sunrise-Sunset Times
Modification of an earlier program to remove restrictions in calculating the short or long great circle path.
Date:
February 18, 1965
Creator:
Crary, J. H.
Object Type:
Report
System:
The UNT Digital Library
Design, Evaluation, and Use of a Reverberation Chamber for Performing Electromagnetic Susceptibility/Vulnerability Measurements
Abstract: This report presents the results of work at the National Bureau of Standards, Boulder, Colorado, to carefully evaluate, document, develop (when necessary), and describe the methodology for performing radiated susceptibility/vulnerability measurements using a reverberation chamber. The report describes the reverberation chamber theory of operation, construction, evaluation, functional operation, and use for performing immunity measurements. It includes an estimate of measurement uncertainties derived empirically from test results and from comparisons with anechoic chamber measurements. Finally, it discusses the limitations and advantages of the measurement technique to assist potential users in determining the applicability for this technique to their electromagnetic compatibility (EMC) measurement needs.
Date:
April 1986
Creator:
Crawford, M. L. & Koepke, Galen H.
Object Type:
Report
System:
The UNT Digital Library
Errata Sheet Number 1 for National Bureau of Standards Building Science Series 144, September 1983
Errata sheet for a report issued by the National Bureau of Standards containing corrections to be added to NBS Bulletin 144.
Date:
January 19, 1983
Creator:
Crenshaw, Richard & Clark, Roy E.
Object Type:
Report
System:
The UNT Digital Library
Amplitude-Probability Distributions for Atmospheric Radio Noise
Report providing detail measurements and percentages in charts, using three statistical parameters, for amplitude-probability distributions of atmospheric radio noise.
Date:
November 4, 1960
Creator:
Crichlow, W. Q.; Spaulding, A. D.; Roubique, C. J. & Disney, R. T.
Object Type:
Report
System:
The UNT Digital Library
Measurement Assurance for Gage Blocks
Report discussing the philosophy of measurement assurance and the three levels of measurement assurance programs. The measurement assurance programs are outlined to show how control over the measurement process can be maintained and how the offset (or systematic error) from the unit of length maintained by the National Bureau of Standards ban be made negligible. This monograph is intended for those who need to know on a continuing basis the uncertainty of their gage block calibration procedure.
Date:
February 1979
Creator:
Croarkin, Carroll; Beers, John & Tucker, Clyde
Object Type:
Report
System:
The UNT Digital Library
Reduction of Data for Piston Gage Pressure Measurements
Report issued by the U.S. National Bureau of Standards discussing piston gage pressure and reducing errors of measurement. Sources of error are described and evaluated in order to "reduce the magnitude of overall error of measurement" (p. 1). This report includes tables, and illustrations.
Date:
June 17, 1963
Creator:
Cross, J. L.
Object Type:
Report
System:
The UNT Digital Library
Reduction of Data for Piston Gage Pressure Measurements
Report discussing pressure measurements made with piston gages that are affected by gravity, temperature, pressure, and several other variables. For accurate determinations of pressure the calculations must take these variables into account. A general equation is developed and simplified procedures for calculating pressure are illustrated.
Date:
June 17, 1963
Creator:
Cross, J. L.
Object Type:
Report
System:
The UNT Digital Library
Design of the National Bureau of Standards Isotropic Magnetic Field Meter (MFM-10) 300 kHz to 100 MHz
From introduction: In this report the following will he discussed: (1) design consideration of the broadband magnetic field sensor, (2) overall design of the magnetic field meter, (3) performance of the meter, (4) calibration and operating procedures, (5) alignment and adjustment procedures, and (6) summary and conclusions.
Date:
October 1985
Creator:
Cruz, J. E.; Driver, L. D. & Kanda, Motohisa
Object Type:
Report
System:
The UNT Digital Library
Effects of Thermal Shrinkage on Built-up Roofing
From Introduction: "The object of this research was to identify and study some of the factors involved in premature failures and to relate the pertinent factors to roof performance."
Date:
March 4, 1965
Creator:
Cullen, William C.
Object Type:
Report
System:
The UNT Digital Library
Low-Sloped Roofing Research Plan
Abstract: This report presents a long-range plan for roofing research. The plan was developed in response to a need for roofing research addressing major materials problems and changes in low-sloped roofing materials technology. The intent of the plan is to establish the technical basis for developing standards and minimum levels of performance to assist in the selection of cost-effective and durable roofing materials. Four major areas of needed research are identified: (1) low-sloped roofing systems, (2) roofing membranes including single-ply and built-up, (3) thermal insulation for roofing systems, and (4) condition assessment and repair of roofs. Within each research area, a goal is given as well as a number of objectives to achieve the goal. A recommended approach to accomplish each objective is also given.
Date:
July 1983
Creator:
Cullen, William C.; Rossiter, Walter J., Jr.; Mathey, Robert G. & Clifton, James R.
Object Type:
Report
System:
The UNT Digital Library
Steel Research Needs for Buildings
Abstract: This report identifies experimental and analytical research needed to advance the state-of-the-art and improve safety and economy in the design, fabrication and construction of steel buildings. A five year plan for a coordinated research program is included. Recommendations for research projects dealing with the following topics are presented: total building systems, connections and members, frames, seismic design, load and resistance factor design, fire protection, and design loads. The recommendations were developed at a workshop involving participation by steel industry representatives, design professionals, Federal agency representatives and university researchers.
Date:
May 1985
Creator:
Culver, Charles G.; Iwankiw, Nestor & Kuentz, Albert
Object Type:
Report
System:
The UNT Digital Library
Formulas, Tables and Curves for Computing the Mutual Inductance of Two Coaxial Circles
Scientific paper issued by the Bureau of Standards over the mutual inductance of two coaxial circles. As stated in the abstract, "a number of examples are given to show the methods of computation by the different formulas, tables, and charts" (p. 541). This paper includes tables, and illustrations.
Date:
August 5, 1924
Creator:
Curtis, Harvey L. & Sparks, C. Matilda
Object Type:
Report
System:
The UNT Digital Library
Interactions of High Energy Particles With Nuclei
Report discussing elastic scattering and diffractive production processes induced in nuclear targets by high energy projectiles. Special attention is paid to the interaction of high energy hadrons and photons. The common features of all these processes are emphasized throughout the article: The multiple scattering and shadowing processes inside of the target nuclei. An effort is made to develop a unified way of treating nuclear interactions of particles which are either hadrons or exhibit some hadronic components in such interactions.
Date:
September 1975
Creator:
Czyz, Wieslaw
Object Type:
Report
System:
The UNT Digital Library
Optical Time-Domain Reflectometer Performance and Calibration Studies
from Introduction: The measurement accuracy of the optical time-domain reflectometer (OTDR) is restricted in some applications by a limited operational dynamic range and by a lack of standardized test procedures. In an effort to better understand these restrictions, we have measured the range of linearity of some avalanche photodiodes used as backscatter detectors. Also, the effect of input launch conditions is examined and a possible standardized OTDR test procedure is proposed. Using these suggestions, we have made comparisons between attenuation values determined by cutback and backscatter methods and found that good agreement is possible. Finally, some methods are described for checking the response. linearity of OTDR systems.
Date:
June 1983
Creator:
Danielson, B. L.
Object Type:
Report
System:
The UNT Digital Library
Relativistic Many-Body Bound Systems
Report containing "[t]he principles and the mathematical details of a fully relativistic nuclear theory" (p. v). Appendix begins on page 124.
Date:
1975
Creator:
Danos, Michael & Gillet, Vincent
Object Type:
Report
System:
The UNT Digital Library
Relativistic Many-Body Bound Systems: Electromagnetic Properties
Report presenting the formulae for the calculation of the electron scattering form factors, and of the static magnetic dipole and electric quadrupole moments, of relativistic many-body bound systems. The framework, given in NBS Monograph 147, is relativistic quantum field theory in the Schrodinger picture ; the physical particles, i.e. the solutions of the interacting fields, are given as linear combinations of the solutions of the free fields, called the parton fields. The parton-photon interaction is taken as given by minimal coupling, p -> p - eA ; in addition the contribution of the photon-vector meson vertex of the vector dominance model is derived.
Date:
April 1977
Creator:
Danos, Michael & Gillet, Vincent
Object Type:
Report
System:
The UNT Digital Library
Ionospheric Radio Propagation
From Preface: "The purpose of this book is to replace, in part, a previous publication of the National Bureau of Standards (Circular 462) with the same title. The scope of the present work has therefore been broadened to include aspects of ionospheric radio propagation which were not treated in earlier publication."
Date:
April 1, 1965
Creator:
Davies, Kenneth
Object Type:
Report
System:
The UNT Digital Library