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Now showing items 491-500 of 547
Studies on the multivariate statistics oriented genetic parameters and their uses
(1981)
Multivariate statistical methods have rarely been used in the plant breeding field. Their intricate theories have made themselves unappealing to most experimentalists. However, recent advancements of electronic computers ...
An administrative history of the Texas Forest Service, 1915-1975
(1981)
The Texas Forest Service (TFS), known as the Department of Forestry until 1926, was created by an act of the Texas Legislature in 1915 and has compiled an impressive record of fire protection and resource management that ...
Examination of abyssal sea floor and near-bottom water mixing processes using Ra-226 and Rn-222
(1981)
Since Broecker's (1965) original work, extensive studies have been made on abyssal near-bottom water mixing processes using the radioactive parent-daughter pair radium-226 (Ra) - radon-222 (Rn). One assumption critical to ...
A value determined model of outdoor recreation behavior : a partial test
(1981)
The study of outdoor recreation behavior continues to be a high priority goal. However, research efforts in outdoor recreation behavior have lacked, in large part, integrated-explicit models to direct the search for ...
Experimental densities and enthalpies for water - natural gas systems
(1981)
A Burnett apparatus was used to obtain accurate P-(rho)-T data of water - natural gas systems over a pressure range of 5 to 2450 psia. Experimental data were obtained for three wet, sweet natural gas mixtures containing ...
Effects of shoaling bottom topography on the dynamics of Gulf Stream cyclonic rings
(1981)
A two-layer, rigid-lid model of a Boussinesq, quasi-geostrophic ocean, based on the vertically-integrated equations of motion, is used on a (beta)-plane to study the processes involved as an initially-Gaussian cyclonic ...
Thermal and clay catalysed cracking in the formation of natural gas
(1981)
The rates of formation and isotopic compositions of the gaseous hydrocarbons produced by the pyrolysis at 400(DEGREES)C and 500(DEGREES)C of n-octadecane both alone and in the presence of several natural clay catalysts ...
Relationship of muscle fiber type and metabolism in quarter horses to varying exercise regimes
(1981)
Fifteen Quarter Horse mares were randomly assigned to one of three 28-day conditioning regimes to evaluate cardiorespiratory and metabolic adaptations to exercise. The treatments were: control (no conditioning); moderate ...
A comparison of market and non-market methods of estimating the demand for and benefits of outdoor recreation
(1981)
Public investment in the production of outdoor recreation requires estimates of user benefits for informed decision making. Recreation often has no market price so that alternative methods of estimating demand for and ...
Effects of hydrological and biological variables on the survival, growth, and food utilization of estuarine fishes cage-cultured in a heated water system
(1981)
Estuarine fishes were cultured in cages in the intake area and at four locations in the cooling lake of a power plant near Baytown, Texas from 1 September 1976 through 1 September 1978 to determine the effects of heated ...