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Now showing items 441-450 of 547
Alteration of exchangeable cation distribution and associated chemical changes in acidifying surface mined soils
(1981)
Two mining areas of different ages, one area mined in 1972 and the other in 1977, were sampled in June and July of 1978. Twenty-five 100 cm cores were taken from each area and subdivided into 10 cm segments. Material from ...
Development of visible/infrared/microwave agricultural classification and biomass algorithms
(1981)
Due to inadequate crop acreage and biomass estimates using satellite and aircraft visible and infrared data, a study was conducted to (1) develop and test agricultural crop classification models using two or more spectral ...
Investigative studies into the interspecific hybridization of Boophilus annulatus and B. microplus and its feasibility as a sterile male control technique
(1981)
Interspecific crosses between Boophilus annulatus (Say) and B. microplus (Canestrini) produced viable progeny in which all males were sterile, and females were fertile. Backcrossing F(,1) females to purestrain R. annulatus ...
Investigation of the effects of oil field traffic on low volume roadways
(1981)
The farm to market roads in Texas are designed to provide service for relatively low traffic volumes and infrequent heavy vehicles. Efforts to increase domestic oil production have increased the demand placed on the rural ...
A rheological characterization of heat-induced protein gels
(1981)
The purpose of this study was to develop and utilize models for assessing viscosity, elasticity and gel strength of heat-induced gels from bovine plasma protein and egg albumen and to characterize the rheological response ...
A biosystematic study of Digitaria sanguinalis Complex in North America (Poaceae: Paniceae)
(1981)
A biosystematic treatment was made of the Digitaria sanguinalis complex in North America. Materials for morphological, anatomical, embryological, and cytological studies were collected from throughout this geographic area. ...
Some effects of rate of loading, method of loading, and applied total stress path on the critical void ratio of a fine uniform sand
(1981)
This investigation consists of four series of anisotropically consolidated undrained triaxial compression tests with pore pressure measurements on 1.4-in.-diam specimens of a fine uniform and derived from a Mississippi ...
Isolation and partial characterization of lymphocyte surface immunoglobulins from the channel catfish (Ictalurus punctatus, Rafinesque)
(1981)
Lactoperoxidase catalysed radioiodination, detergent lysis and specific immunoprecipitation were used to recover the surface immunoglobulins (SIg) from channel catfish lymphocyte sub-populations. The molecular weight and ...
A computational study of the modification of raindrop size distributions in subcloud downdrafts
(1981)
A computational study is made of the variation of steady-state raindrop-size distributions (0.004 cm [less than or equal to] radius [less than or equal to] 0.40 cm) in adiabatic subcloud downdrafts of constant magnitude. ...