Technical Highlights of the National Bureau of StandardsU.S. Department of Commerce, National Bureau of Standards, 1960 |
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Page 6
... associated with hydrogen and oxygen lines observed in solar and stellar spectra , the Bureau developed a wall - stabilized high - current arc chamber operating in hydrogen at 12,000 A high - current arc chamber operating in hydrogen at ...
... associated with hydrogen and oxygen lines observed in solar and stellar spectra , the Bureau developed a wall - stabilized high - current arc chamber operating in hydrogen at 12,000 A high - current arc chamber operating in hydrogen at ...
Page 22
... associated with cavities closed by screw knobs . Tests were started on weights of a new design which retain the advantages of two - piece construction and provide the higher precision and increased constancy now provided by one - piece ...
... associated with cavities closed by screw knobs . Tests were started on weights of a new design which retain the advantages of two - piece construction and provide the higher precision and increased constancy now provided by one - piece ...
Page 40
... associated with the freezing out of long- range molecular motions that are associated with the onset of the glass transition in the amorphous component at 52 ° C . At a given frequency , say 1 c / s , the dielectric loss peak associated ...
... associated with the freezing out of long- range molecular motions that are associated with the onset of the glass transition in the amorphous component at 52 ° C . At a given frequency , say 1 c / s , the dielectric loss peak associated ...
Page 44
... associated with certain parameters in the system which may affect the measured frequency . A servo system for locking a 5 Mc / s quartz crystal oscillator to the cesium atomic resonance was completed and extensively tested . The system ...
... associated with certain parameters in the system which may affect the measured frequency . A servo system for locking a 5 Mc / s quartz crystal oscillator to the cesium atomic resonance was completed and extensively tested . The system ...
Page 56
... associated with liquid helium - 4 vapor pressures , differences of about 10 and 7 millidegrees re- spectively were found . This result is preliminary , and work is continuing . Resistance Thermometers . Carbon resistors and impurity ...
... associated with liquid helium - 4 vapor pressures , differences of about 10 and 7 millidegrees re- spectively were found . This result is preliminary , and work is continuing . Resistance Thermometers . Carbon resistors and impurity ...
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Page 177 - Handbooks — Recommended codes of engineering and industrial practice (including safety codes) developed in cooperation with interested industries, professional organizations, and regulatory bodies. Special Publications...
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Page 69 - These guides, which are generally consistent with the recommendations of the National Council on Radiation Protection and Measurements (NCRP) and the International Commission on Radiological Protection (ICRP), have been adopted by the Atomic Energy Commission in the development of its radiation protection standards.
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Page 241 - Research on crystal growth and characterization at the National Bureau of Standards during the period January to June 1963, ed.
Page 159 - The custody, maintenance, and development of the national standards of measurement, and the provision of means and methods for making measurements consistent with those standards, including the comparison of standards used in scientific investigations, engineering, manufacturing, commerce, and educational institutions with the standards adopted or recognized by the Government.
Page 153 - A new guide to information resources in the social sciences has been published by the National Referral Center for Science and Technology at the Library of Congress.
Page 191 - No. 1, 1-29 (July 1961). Reinhart, FM, Twenty-year atmospheric corrosion investigation of zinc-coated and uncoated wire and wire products, Am. Soc. Testing Materials Spec. Tech. Publ. 290, 1-141 (June 1961). Time standards, AG McNish, Instr. and Control Systems 33, 1340-1341 (Aug.