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open access

Human semen assays for workplace monitoring. [Monitoring of hazardous materials by determining effects on semen of personnel]

Description: Decades of human semen studies have yielded compelling evidence that sperm can be used to access reproductive potential and diagnose pathology. With these studies as background, the small number of detailed semen studies of men exposed to physical and chemical agents point with optimism to the application of human semen assays as efficient, effective means to monitor for reproductive hazards in the workplace. Sperm are the most accessible of human gonadal tissue and provide a means of monitorin… more
Date: November 7, 1978
Creator: Wyrobek, A.J. & Gledhill, B.L.
Partner: UNT Libraries Government Documents Department
open access

Time-dependent FEM solution of the incompressible Navier--Stokes equations in two- and three-dimensions

Description: Future prospects regarding the numerical solution of the Navier-Stokes equations using the finite element method are discussed. Since the ultimate goal is to solve these equations in three-dimensions, only the primitive variable (u,P) formulation is considered. A novel feature of the two-dimensional solution technique relates to the methodology developed and employed for solving the semi-discretized system of ordinary differential equations, which are outlined in the section describing the deve… more
Date: July 7, 1978
Creator: Gresho, P.M.; Lee, R.L.; Sani, R.L. & Stullich, T.W.
Partner: UNT Libraries Government Documents Department
open access

Effects of various polishing media and techniques on the surface finish and behavior of laser glasses

Description: The advance of high-power laser technology is dependent on the rate of advancement in laser glass forming and surface preparation. The threshold damage of glass surfaces continues to be a weak link in the overall advancement of laser technology. Methods were developed and used in the evaluation of existing glass surface preparation techniques. Modified procedures were evaluated to reduce surface contamination and subsurface defects. Polishing rates were monitored under controlled polishing cond… more
Date: November 7, 1978
Creator: Landingham, R. L.; Casey, A. W. & Lindahl, R. O.
Partner: UNT Libraries Government Documents Department
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