NBS Special Publication, Edição 214U.S. Government Printing Office, 1918 |
Palavras e frases frequentes
absorption accuracy activities agencies American Standards Association analysis antenna applied atmosphere atomic Boulder Bureau cadmium sulfate calculation calibration capacitance cell Center cerium Chem chemical coefficient conducted cross sections Cryogenic crystals D region density determined deuterium developed effects electrical electromagnetic electron energy engineering evaluated experimental field frequency function gases helium hydrogen included industry infrared Institute instrument International investigation ionization ionosphere ions Laboratory magnetic manometer materials mathematical mechanical ment method microwave molecular molecules National neutron NSRDS nuclear observed obtained operation optical oxide percent Phys physical plasma polymer precision pressure problems Proc processing produced properties proton radiation radio propagation range reactions resistance thermometer resonance samples scattering scientific solar spectral spectral radiance spectrometer spectrum standard reference statistical structure superconductivity surface technical techniques temperature theory thermal thermodynamic tion voltage waveguide wavelengths waves weights and measures WWVB
Passagens conhecidas
Página 110 - 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.
Página 29 - Transportation. Atomic Energy Commission, National Aeronautics and Space Administration. National Science Foundation, and...
Página 146 - American Institute of Aeronautics and Astronautics (AIAA), American Institute of Chemical Engineers (AIChE...
Página 161 - Research on crystal growth and characterization at the National Bureau of Standards during the period January to June 1963, ed.
Página 107 - 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.
Página 1 - 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.
Página 162 - Solar heating, radiative cooling, and thermal movement — their effects on built-up roofing, WC Cullen.
Página 1 - 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. To this end the Bureau conducts research and provides central national services in four broad program areas.
Página 2 - Laboratory is the central agency of the Federal Government for obtaining, analyzing, and disseminating information on the propagation of radio waves at all frequencies along the surface of the earth, in the atmosphere, and in space.
Página 159 - Monographs are usually contributions to the technical literature which are too lengthy for publication in the Journal of Research. They often provide extensive compilations of information on subjects related to the Bureau's technical program. Supersedes Circulars. C 13.45:nos. NATIONAL BUREAU OF STANDARDS CERTIFICATE OF CALIBRATION.