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Now showing items 151-160 of 437
A multi-band phase-locked loop frequency synthesizer
(Texas A&M University, 1999)
A phase-locked loop (PLL) frequency synthesizer suitable for multi-band transceivers is proposed. The multi-band PLL frequency synthesizer uses a switched tuning voltage- controlled oscillator (VCO) that covers a frequency ...
Assessment of durability performance of "Early-Opening-to-Traffic" Portland Cement Concrete pavement and patches
(Texas A&M University, 1999)
This study relates the assessment of durability to ''early-opening-to-traffic'' (EOT) portland cement concrete (PCC). Several factors were identified relative to the performance of EOT PCC. Each of these factors was ...
Proline metabolism in enterocytes of neonatal pigs
(Texas A&M University, 1999)
Sow's milk is remarkably deficient in arginine (an raphics. essential amino acid for neonates) but is rich in proline and glutamine plus glutamate. In neonatal pigs, enterocytes play an important role in synthesizing ...
Using mixed integer programming to schedule experiments on the Texas A&M University nuclear science center reactor
(Texas A&M University, 1999)
The NSC scheduling problem involves a two-station graphics. bowshot. Several practical aspects prevent it from conforming to existing models in the literature. Some jobs may be preempted, while others may not. Some jobs ...
Evaluating the perceptions, knowledge, and attitudes of Texas county extension agents about sustainable agriculture
(Texas A&M University, 1999)
The purpose of this study was to determine the level of knowledge, perceptions of, and attitudes toward sustainable agriculture held by Texas county extension agents. Conducted from August 1998 to August 1999, the study ...
Leptin acts centrally to induce the prepubertal secretion of luteinizing hormone in the female rat: a potential early role in the pubertal process
(Texas A&M University, 1999)
Recent data generated from adult male and female rats indicates that lepton is capable of stimulating luteinizing hormone (LH) secretion via a hypothalamic action. Consequently, we hypothesized that this peptide may similarly ...
Constructability analysis of bridge pier foundations in waterways
(Texas A&M University, 1999)
Constructibility has been defined as "the optimum use of construction knowledge and experience in planning, engineering, procurement, and field operations to achieve overall project objectives.'' ("Constructability: a ...
Texas driver comprehension of abbreviations for changeable message signs
(Texas A&M University, 1999)
The research conducted for this thesis was done as part of an ongoing research project by the Texas Transportation Institute (TTI) for the Texas Department of Transportation (TxDOT) for the evaluation of changeable message ...
Tuberculosis on the move: the impact of immigration on TB rates in the counties of the Southwestern United States, 1987-1998
(Texas A&M University, 1999)
What was the impact of immigration on TB prevalence rates in Southwestern US counties for the years 1987-1998, and what was the nature and degree of risk posed by infected immigrants? Research on this subject has presented ...
Chaotic generation of pseudo-random numbers
(Texas A&M University, 1999)
Generation of repeatable pseudo-random sequences with chaotic analog electronics is not feasible using standard circuit topologies. Component variation caused by imperfect fabrication causes the same divergence of output ...