Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Boston University president John Silber addresses reporters at a new conference Friday at Boston University, as he read the resignation letter of Boston University's Dean of Communication H."

Daily newspaper from Port Lavaca, Texas that includes local, state, and national news along with advertising.

Grazing incidence metal mirrors (GIMMs) are examined to replace dielectric mirrors for the final elements in a laser beam line for an inertial confinement fusion reactor. For a laser driver with a wavelength from 250 to 500 nm in a 10-ms pulse, irradiated mirrors made of Al, Al alloys, or Mg were found to have calculated laser damage limits of 0.3--2.3 J/cm{sup 2} of beam energy and neutron lifetime fluence limits of over 5 {times} 10{sup 20} 14 MeV n/cm{sup 2} when used at grazing incidence and operated at room temperature or at 77 K. A final focusing system including mirrors made of Al alloy 7475 at room temperature or at liquid nitrogen temperatures used with a driver which delivers 5 MJ of beam energy in 32 beams would require 32 mirrors of roughly 10 m{sup 2} each. This chapter includes calculations of damage limits for GIMMs and discusses critical issues relevant to the integrity and lifetime of such mirrors in a reactor environment. The reflectivities of various metals are calculated from measured optical constants at room temperature and at cryogenic temperatures for 250- to 500-nm light at both normal and grazing incidence. Then, for the mirrors in a representative …

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Atmospheric transport and diffusion models have been developed for real-time calculations of the location and concentration of toxic or radioactive materials during an accidental release at the Savannah River Site (SRS). These models are based Gaussian distributions and have been incorporated into an automated menu-driven program called the WIND (Weather INformation and Display) system. The WIND system atmospheric models employ certain assumptions that allow the computations of the ground-level concentration of toxic or radioactive materials to be made quickly. Gaussian models, such as PF/PL and 2DPUF, suffer from serious limitations including the inability to represent recirculation of pollutants in complex terrain, the use of one stability class at a given time to represent turbulent mixing over heterogeneous terrain, and the use of a wind field computed at only one height in the atmosphere. These limitations arise because the fundamental conservation relations of the atmosphere have been grossly simplified. Three-dimensional coupled atmospheric-dispersion models are not limited by the over-simplifications of the Gaussian assumption and have been used in the past to predict the transport of pollutants in a variety of atmospheric circulations. The disadvantage of these models is that they require large amounts of computational time; however, technology has progressed enough …

Atmospheric transport and diffusion models have been developed for real-time calculations of the location and concentration of toxic or radioactive materials during an accidental release at the Savannah River Site (SRS). These models are based Gaussian distributions and have been incorporated into an automated menu-driven program called the WIND (Weather INformation and Display) system. The WIND system atmospheric models employ certain assumptions that allow the computations of the ground-level concentration of toxic or radioactive materials to be made quickly. Gaussian models, such as PF/PL and 2DPUF, suffer from serious limitations including the inability to represent recirculation of pollutants in complex terrain, the use of one stability class at a given time to represent turbulent mixing over heterogeneous terrain, and the use of a wind field computed at only one height in the atmosphere. These limitations arise because the fundamental conservation relations of the atmosphere have been grossly simplified. Three-dimensional coupled atmospheric-dispersion models are not limited by the over-simplifications of the Gaussian assumption and have been used in the past to predict the transport of pollutants in a variety of atmospheric circulations. The disadvantage of these models is that they require large amounts of computational time; however, technology has progressed enough …

Weekly newsletter published for employees of the Fort Worth Division of General Dynamics containing work-related information, updates about employees, and other news.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Nashville's Donnie Scott (440 is out at second but keeps Oklahoma City's Jose Hernandez from making the throw to first during Friday night's game at All Sports Stadium."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Alice Tribble Full Figure Fashions' louning set and matching robe."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A three-piece pantsuit by Full Figure Fashions features a Navajo print. Alice Tribble"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Alice Tribble For fall, Full Figure Fashions offers a colorful paisley and floral jacquard skit and blouse."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Alice Tribble Full Figure Fashions clothing line owner"

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Jackson County officials were surprised to find a 12-foot, leaded glass dome hidden behind a drop ceiling in the county courthouse."

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Weekly newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Zookeeper Ken Wilkins and a cockatoo named Charlie are on hand as Ellen Holloway, a physical therapist at oklahoma City Clinc, checks the coordination of 4-year old Christopher Webster."

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Crediting her faith in God for her sucess."

Weekly newspaper from Dell City, Texas that includes local, state, and national news along with advertising.