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Now showing items 2661-2670 of 2804
Movement and distribution of ⁴²K and ¹³⁴CS in Schizachyrium scoparium (Michx.) Nash tillers, clones, and associated habitat
(1969)
Movement and distribution of ⁴²K and ¹³⁴Cs were investigated within individual Schizachyrium scoparium (Michx.) nash (little bluestem) tillers grown in a greenhouse and under natural conditions. The field studies were ...
Optimization and control of production operations utilizing mathematical flow models
(1968)
During recent years the phenomenal growth in size and complexity of our economy and our industrial organizations has brought about an intense need for improved techniques of management and control of production operations. ...
A licensing program for operators of two-wheeled motor vehicles
(1969)
This study was conducted to develop and evaluate a licensing program for operators of two-wheeled motor vehicles. The specific materials developed were: 1) a driver's handbook, 2) two forms of a written test, 3) an off-street ...
Investigation of gas species generation by electrically exploding wires at low pressure
(1969)
A series of metallic wires of 10.5 inches in length were electrically exploded in a steel chamber 13.625 inches in diameter and 4 feet in length. The gases in the chamber before and after the explosion were determined using ...
Microsporogenesis and pollen abortion in Bruce plum (Prunus salicina x P. augustifolia)
(1965)
Investigations were undertaken to determine the causes of high rate of pollen abortion in Bruce plum (Prunus salicina x P. angustifolia). Microspore and pollen development in the pollen-fertile Methley plum (P. salicina x ...
Changing concepts in instructional procedures in high school history teaching since 1900
(1969)
The purpose of this study is to trace the development of classroom instructional procedures in high school history teaching since 1900 as reflected in the professional literature of the period, with special reference to ...
The development and evaluation of an instrumentation system for use in scattered light photoelasticity
(1969)
A program was conducted to develop and instrumentation system to be used for obtaining accurate measurements of the interference fringe spacing in scattered light photoelasticity. To circumvent difficulties in modulating ...