National Bureau of Standards Circular, Τεύχη 569-5751956 |
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Αποτελέσματα 1 - 5 από τα 11.
Σελίδα
... Elastic properties ...... 5.4 . Sorption ..... 5.5 . Hardness .. 5.6 . Density ..... 5.7 . Devitrification .... ... 5.8 . Thermal expansion ... 5.9 . Viscosity .... 6. Bibliography ...... 6.1 . Books and reviews ..... 6.2 . Applications ...
... Elastic properties ...... 5.4 . Sorption ..... 5.5 . Hardness .. 5.6 . Density ..... 5.7 . Devitrification .... ... 5.8 . Thermal expansion ... 5.9 . Viscosity .... 6. Bibliography ...... 6.1 . Books and reviews ..... 6.2 . Applications ...
Σελίδα 2
... elasticity , thermal , electri- cal , and chemical resistance are most fully utilized . It is with these individual fibers and their adaptability to precision measuring instruments that this review is chiefly con- cerned . Individual ...
... elasticity , thermal , electri- cal , and chemical resistance are most fully utilized . It is with these individual fibers and their adaptability to precision measuring instruments that this review is chiefly con- cerned . Individual ...
Σελίδα 9
... elasticity makes silica fibers lesirable for many applications . However the great range of individual values for strength ind the slight loss of strength due to cer- cain conditions of use prevent or limit those pplications needing ...
... elasticity makes silica fibers lesirable for many applications . However the great range of individual values for strength ind the slight loss of strength due to cer- cain conditions of use prevent or limit those pplications needing ...
Σελίδα 11
... elastic limit is reached . Because of the effects on strength of these conditions it is difficult to bring values of individual fibers within a small range of error . It may be appropriate to mention here the often quoted idea of Little ...
... elastic limit is reached . Because of the effects on strength of these conditions it is difficult to bring values of individual fibers within a small range of error . It may be appropriate to mention here the often quoted idea of Little ...
Σελίδα 12
... Elastic Properties Silica fibers exhibit almost perfect elasticity up to the breaking point ; any de- viations are so slight as to be barely meas- urable . Although the elastic constants have been determined since silica fibers were ...
... Elastic Properties Silica fibers exhibit almost perfect elasticity up to the breaking point ; any de- viations are so slight as to be barely meas- urable . Although the elastic constants have been determined since silica fibers were ...
Συχνά εμφανιζόμενοι όροι και φράσεις
accuracy amplitude apothecaries apparatus applied avoirdupois pound balance Biol Bremmer British Bureau of Standards calibration CALIFORNIA LIBRARY centimeter Ceram Chem coefficient computed constants cubic inches d(miles decibels density elastic electron feet field FIGURE fluid drams fluid ounces fluid scruple frequencies fused quartz fused silica gallon geodetic Glass Technol Government Printing Office graduated ground wave Inst intervals invar isotopes kc f kilogram laboratory line standards long ton mathematics methods metric system microbalance microseconds millimeters MISCELLANEOUS PUBLICATION mmmmm National Bureau nitrogen ooooo phase Phys physical Plane Earth Theory precision Proc Prototype Meter radians radio propagation Research secondary factor silica fibers Spherical Earth Theory square Standards Circular standards of length statute miles steel tapes surface tables temperature tion tonnage troy troy pound U. S. Government Printing units UNIVERSITY OF CALIFORNIA values velocity viscosity volts per meter Washington 25 weights and measures wwwww yard
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.