Annual Report of the National Bureau of StandardsU.S. Government Printing Office, 1965 |
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Page 16
... analysis has been performed on the cesium - beam resonator ( NBS - III ) which is the U. S. Frequency Standard ( USFS ) . This analysis revealed that frequency can be measured with a 99.9 percent confidence to an accuracy of 5 parts in ...
... analysis has been performed on the cesium - beam resonator ( NBS - III ) which is the U. S. Frequency Standard ( USFS ) . This analysis revealed that frequency can be measured with a 99.9 percent confidence to an accuracy of 5 parts in ...
Page 27
... analysis has been developed to optimize the operation of the electrodynamic ammeter . This instrument will provide a standard of radio - frequency current and con- sequently act as an independent check on high frequency power and ...
... analysis has been developed to optimize the operation of the electrodynamic ammeter . This instrument will provide a standard of radio - frequency current and con- sequently act as an independent check on high frequency power and ...
Page 52
... analysis of the safety hazard arising from fission - product beta - rays in reactor fuel elements ; ( 4 ) the absorption of electron energy in thin targets as function of the target thickness and of the direction of the inci- dent beam ...
... analysis of the safety hazard arising from fission - product beta - rays in reactor fuel elements ; ( 4 ) the absorption of electron energy in thin targets as function of the target thickness and of the direction of the inci- dent beam ...
Page 56
... Analysis of the spectrum present along with the previously recog nized range bands of F has shown the emitter to be F2 + . The combined results for F and F have enabled the energy level scheme for F2 to be clarified appreciably . + 2 ...
... Analysis of the spectrum present along with the previously recog nized range bands of F has shown the emitter to be F2 + . The combined results for F and F have enabled the energy level scheme for F2 to be clarified appreciably . + 2 ...
Page 70
... Analysis . Simulation and analytic models of air transport competition were developed . Models also were devised for cost - benefit comparisons and for balance - of - payments- effects analysis . The models were implemented as digital ...
... Analysis . Simulation and analytic models of air transport competition were developed . Models also were devised for cost - benefit comparisons and for balance - of - payments- effects analysis . The models were implemented as digital ...
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Page 23 - THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consistent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce.
Page 37 - The second is the duration of 9 192 631 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium- 133 atom.
Page 150 - Provides quantitative data on the physical and chemical properties of materials, compiled from the world's literature and critically evaluated.
Page 117 - Heat. Temperature Physics. Heat Measurements. Cryogenic Physics. Equation of State. Statistical Physics. Radiation Physics. X-ray. Radioactivity. Radiation Theory. High Energy Radiation. Radiological Equipment.
Page 1 - These include the development and maintenance of the national standards of measurement and the provision of means and methods for making measurements consistent with these standards: the determination of physical constants and properties of materials; the development of methods and instruments for testing materials, devices, and structures; advisory services to government agencies on scientific and technical problems...
Page 151 - Legibility of Alphanumeric Characters and Other Symbols; I. A Permuted Title Index and Bibliography.
Page 6 - reasonably good," it must be superior. It is not sufficient to have fairly good standards of measurement ; fairly good methods of testing materials, mechanisms or structures ; or reasonably good determination of important physical constants. The standards, the measurements, the test procedures must be the very best, the most accurate, the most reliable that can possibly be achieved at any given time, limited only by the state of the art at the time. It is thus more than a play on words to say that...
Page 13 - Subcommittee on Science, Research and Development, House Committee on Science and Astronautics, opened hearings on problems of the Government-Science relationship.
Page 152 - CERC publications are available from the Clearinghouse for Federal Scientific and Technical Information, 5285 Port Royal Road, Springfield, Virginia 22151.
Page 79 - Bureau is a principal focal point in the Federal Government for assuring maximum application of the physical and engineering sciences to the advancement of technology in industry and commerce.