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Now showing items 671-680 of 2795
Investigation of stresses in a plate containing circular holes
(1964)
In this investigation, the magnitude and position of the maximum stresses, as well as the stress distributions (maximum sheading stress) of critical sections of large plates perforated by circular holes and subjected to ...
Mitotic aberrations in V̲i̲c̲i̲a̲ f̲a̲b̲a̲ L. chromosomes induced by sodium fluoride
(1968)
Mitotic cells from root and leaf tips of seedlings treated with sodium fluoride at the concentration levels of 1x10⁻², 1x10⁻⁴, and 1x10⁻⁶ M were examined. Cytological analyses showed the occurrence of chromosomal gaps and ...
The measurement of the Hall effect in single crystals of iodine and in an iodine complex by means of an AC technique
(1965)
An apparatus for the measurement of the Hall effect in materials of low mobility and high resistivity is described. An ac technique is used: the sample is rotated in a static magnetic field at 20 cps, an electric field is ...
A barotropic prognostic numerical model of the circulation in the Gulf of Mexico
(1969)
A prognostic vorticity equation, which includes topographic, inertial, lateral and Ekman-type bottom friction and Coriolis terms, is derived from the primitive equations under barotropic conditions. A numerical analog using ...
Spectropolarimetric determinations of metal ions using D-(-)-1,2-propylenediaminetetraacetic acid
(1969)
A method is presented for the spectropolarimetric determination of scandium (III), titanium (IV), vanadium (IV), chromium (III), manganese (II), iron (III), cobalt (II), nickel (II), copper (II), zinc (II), calcium (II), ...
An experimental investigation of factors affecting acoustic wave velocities in sandstone
(1969)
In recent years much energy has been directed toward obtaining equations for predicting physical properties of subsurface formations from indirect measurements. One of the most important examples is in the use of the sonic ...
Unrestricted Hartree-Fock atomic wave-functions
(1969)
Unrestricted Hartree-Fock (UHF) wavefunctions, in the Spin-Polarized Hartree-Fock (SPHF) approximation, have been determined for a number of neutral, divalent, and trivalent transition metal atoms with d[superscript n] ...