National Bureau of Standards Circular, Τεύχη 569-5751956 |
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Αποτελέσματα 1 - 5 από τα 19.
Σελίδα 18
... Inst . 180 , 463 ( 1915 ) . [ 21 ] A. Friedrich , Uber ein verbissertes Modell der vereinfachten Salvoni -Federwaage , Mikrochemie 15 , 35 ( 1934 ) . [ 22 ] H. K. Alber , Improved apparatus for microprepara- tive work , Ind . Eng . Chem ...
... Inst . 180 , 463 ( 1915 ) . [ 21 ] A. Friedrich , Uber ein verbissertes Modell der vereinfachten Salvoni -Federwaage , Mikrochemie 15 , 35 ( 1934 ) . [ 22 ] H. K. Alber , Improved apparatus for microprepara- tive work , Ind . Eng . Chem ...
Σελίδα 19
... Inst . 23 , 259 ( 1946 ) . [ 49 ] P. L. Kirk , R. Craig , J. E. Gullberg , R. Q. Boyer , Quartz microgram balance , Ind . Eng . Chem . ( Anal . Ed . ) 19 , 427 ( 1947 ) . [ 50 ] H. M. El - Badry , C. L. Wilson , The construction and use ...
... Inst . 23 , 259 ( 1946 ) . [ 49 ] P. L. Kirk , R. Craig , J. E. Gullberg , R. Q. Boyer , Quartz microgram balance , Ind . Eng . Chem . ( Anal . Ed . ) 19 , 427 ( 1947 ) . [ 50 ] H. M. El - Badry , C. L. Wilson , The construction and use ...
Σελίδα 20
... Inst . 25 , 55 ( 1954 ) . 6.3 Production and Fabrication Methods a . Fused Silica [ 82 ] R. S. Hutton , On the fusion of quartz in the electric furnace , Trans . Am . Electrochem . Soc . 2 , 105 ( 1902 ) . [ 83 ] A. L. Day , E. S. ...
... Inst . 25 , 55 ( 1954 ) . 6.3 Production and Fabrication Methods a . Fused Silica [ 82 ] R. S. Hutton , On the fusion of quartz in the electric furnace , Trans . Am . Electrochem . Soc . 2 , 105 ( 1902 ) . [ 83 ] A. L. Day , E. S. ...
Σελίδα 22
... Inst . 24 , 998 ( 1953 ) . e . Mechanical Properties of Glass - Theory [ 199 ] A. A. Griffith , The phenomena of rupture and flow in solids , Phil . Trans . Roy . Soc . London [ A ] 221 , 163 ( 1920 ) . [ 200 ] A. A. Griffith , The ...
... Inst . 24 , 998 ( 1953 ) . e . Mechanical Properties of Glass - Theory [ 199 ] A. A. Griffith , The phenomena of rupture and flow in solids , Phil . Trans . Roy . Soc . London [ A ] 221 , 163 ( 1920 ) . [ 200 ] A. A. Griffith , The ...
Σελίδα 23
... Inst . 24 , 81 ( 1953 ) . [ 245 ] H. J. McSkimin , Measurements of elastic constants at low temperature by means of ultrasonic waves , J. Appl . Phys . 24 , 988 ( 1953 ) . g . Devitrification [ 246 ] W. Crooks , On the devitrification ...
... Inst . 24 , 81 ( 1953 ) . [ 245 ] H. J. McSkimin , Measurements of elastic constants at low temperature by means of ultrasonic waves , J. Appl . Phys . 24 , 988 ( 1953 ) . g . Devitrification [ 246 ] W. Crooks , On the devitrification ...
Συχνά εμφανιζόμενοι όροι και φράσεις
100 kc d(miles apothecaries apparatus atmosphere avoirdupois pound Berkeley Biol Bremmer British Bureau of Standards bushel CALIFORNIA LIBRARY Chem computed conductivity cubic inches decibels Distance From Source electron feet field intensity FIGURE fluid drams fluid ounces fluid scruple free space frequencies fused silica gallon Glass Technol grains ground wave h₂ Inst International invar isotopes kc f kilogram laboratory Line Standards mathematics methods metric system Mhos per Meter millimeters MISCELLANEOUS PUBLICATION National Bureau NBS CIRCULAR permittivity phase velocity Phys physical Plane Earth Theory Proc propagation Prototype Meter quartz radians radio radio propagation Research secondary factor silica fibers Spherical Earth Theory spherical-earth theory standards of length Statute Miles steel tapes strength surface system of weights t(microseconds TABLE temperature tension thermal tion tonnage troy pound U. S. Government Printing units UNIVERSITY OF CALIFORNIA Variation volts per meter wavelength weights and measures yard Ηρ λ
Δημοφιλή αποσπάσματα
Σελίδα 18 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq.
Σελίδα 20 - Dry Measure. — 2 pints = 1 quart; 8 quarts = 1 peck; 4 pecks = 1 bushel.
Σελίδα 18 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu.
Σελίδα 21 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 29 - Used in assaying. The assay ton bears the same relation to the milligram that a ton of 2,000 pounds avoirdupois bears to the ounce troy; hence the weight in milligrams of precious metal obtained from one assay ton of ore gives directly the number of troy ounces to the net ton.
Σελίδα 12 - When an equal-arm balance is used to compare an object with standards of mass ("weights"), the effects of variations in the acceleration of gravity are self-eliminating and need not be taken into account, but the apparent mass of the object is slightly different from the true mass because of the buoyant effects of the surrounding air. Mass can then be computed from apparent mass by applying a correction for air buoyancy. When a spring balance is used, an additional correction accounting for the local...
Σελίδα 4 - The essential features of the system were embodied in a report made to the French National Assembly by the Academy of Sciences in 1791. A number of other nations were invited to cooperate with France in establishing the new system, and Holland, Denmark...
Σελίδα 18 - LIQUID MEASURE When necessary to distinguish the liquid pint or quart from the dry pint or quart, the word "liquid" or the abbreviation "liq" should be used in combination with the name or abbreviation of the liquid unit.
Σελίδα 22 - Projects are conducted in fifteen fields : electricity and electronics, optics and metrology, heat and power, atomic and radiation physics, chemistry, mechanics, organic and fibrous materials, metallurgy, mineral products, building technology, applied mathematics, data processing systems, cryogenic engineering, radio propagation, and radio standards.