Journal of Research of the National Bureau of Standards, Volumes 91-92National Bureau of Standards, 1986 |
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Page 4
... estimated main effects ( the main fac- tors affecting the measurement results ) 1 Figures in brackets indicate literature references . AB , ACk , BCk = the estimated two - factor interactions ( systematic effects not explained by the ...
... estimated main effects ( the main fac- tors affecting the measurement results ) 1 Figures in brackets indicate literature references . AB , ACk , BCk = the estimated two - factor interactions ( systematic effects not explained by the ...
Page 5
... estimate of the standard deviation of a single measurement , s , will be presented . 1 2 3 4 5 6 7 8 + + + + + + + + ... estimated main ef- fects are too large ? Since the main effects are expressed in the units of the measurement , one ...
... estimate of the standard deviation of a single measurement , s , will be presented . 1 2 3 4 5 6 7 8 + + + + + + + + ... estimated main ef- fects are too large ? Since the main effects are expressed in the units of the measurement , one ...
Page 6
... estimates of the factors and to get a current estimate of the within - laboratory measurement variability , s . In estimating the measurement variability one needs to guard against the occurrence of a possible measurement shift between ...
... estimates of the factors and to get a current estimate of the within - laboratory measurement variability , s . In estimating the measurement variability one needs to guard against the occurrence of a possible measurement shift between ...
Page 7
... estimate for each effect is now the average of two experiments the t - test , derived in the form of eq 3 , must be ... Estimated variance of ( d ) = 4s2 / N + 4s2 / N = 8s2 / N . ( 6 ) By combining eqs ( 5 ) and ( 6 ) and rearranging ...
... estimate for each effect is now the average of two experiments the t - test , derived in the form of eq 3 , must be ... Estimated variance of ( d ) = 4s2 / N + 4s2 / N = 8s2 / N . ( 6 ) By combining eqs ( 5 ) and ( 6 ) and rearranging ...
Page 39
... estimated uncertainties are two standard deviations of the certified values , except in the cases of pH , acidity , conductance , and sulfate which are based on scientific judgment and are roughly equivalent to two standard devi- ations ...
... estimated uncertainties are two standard deviations of the certified values , except in the cases of pH , acidity , conductance , and sulfate which are based on scientific judgment and are roughly equivalent to two standard devi- ations ...
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analysis analytical atomic beam BIPM Bureau of Standards calculated calibration calorimeter cell Chem chemical components constant correction detector determined developed displacement effects electrode spacing electron energy Engineering enthalpy equation error estimated evaluation experiment experimental factor Federal finite element flaw frequency function Gaithersburg Green's function impact instrument interactions International ionization chamber isotopic Josephson effect Journal of Research Laboratory linewidth measurement ment metal method metrology microphone National Bureau obtained optical oxygen photodiode Phys physical plate precision procedure quantum Hall effect radiation range ratio S-wave sample scanning shown in figure solution specimen spectral SPRT's SQUID standard deviation Standard Reference Materials Standards Gaithersburg superconducting surements surface technical techniques temperature thermal thermopile tion trace element triple point tunneling uncertainty vacuum values voltage wave waveform wavelength
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Page 241 - Monographs — Major contributions to the technical literature on various subjects related to the Bureau's scientific and technical activities. Handbooks — Recommended codes of engineering and industrial practice (including safety codes) developed in cooperation with interested industries, professional organizations, and regulatory bodies. Special Publications — Include proceedings of conferences sponsored by NBS.
Page 263 - Certain commercial equipment, instruments, or materials are identified in this paper in order to adequately specify the experimental procedure. Such identification does not imply recommendation or endorsement by the National...
Page 112 - JOURNAL OF RESEARCH— The Journal of Research of the National Bureau of Standards reports NBS research and development in those disciplines of the physical and engineering sciences in which the Bureau is active. These include physics, chemistry, engineering, mathematics, and computer sciences. Papers cover a broad range of subjects, with major emphasis on measurement methodology, and the basic technology underlying standardization. Also included from time to time are survey articles on topics closely...
Page 345 - Studies or reports which are complete in themselves but restrictive in their treatment of a subject. Analogous to monographs but not so comprehensive in scope or definitive in treatment of the subject area. Often serve as a vehicle for final reports of work performed at NBS under the sponsorship of other
Page 78 - The Bureau's overall goal is to strengthen and advance the Nation's science and technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides...
Page 112 - NBS administers this program as a supplement to the activities of the private sector standardizing organizations. Consumer Information Series — Practical information, based on NBS research and experience, covering areas of interest to the consumer. Easily understandable language and illustrations provide useful background knowledge for shopping in today's technological marketplace.
Page 15 - The metre is the length equal to 1 650 763.73 wavelengths in vacuum of the radiation corresponding to the transition between the levels 2p,0 and 5d5 of the krypton-86 atom.
Page 345 - Bureau conducts research and provides: (1) a basis for the Nation's physical measurement system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety.
Page 41 - NBS pursuant to the Federal Property and Administrative Services Act of 1949 as amended, Public Law 89-306 (79 Stat. 1127), and as implemented by Executive Order 11717 (38 FR 12315, dated May 11, 1973) and Part 6 of Title 15 CFR (Code of Federal Regulations).
Page 311 - 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.