Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Ida Kohlmeyer displays an example of her work."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Kayna Hogue shares a bouquet with doll Edwin Borgada."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mr. and Mrs. Dick Clements, at right, pose with honored guest Ida Kohlmeyer."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Two sailing enthusiasts throw their weight around."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A wide-angle lens captures the gardens amid the downtown skyline."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "John Kilpatrick, a volunteer at the weekend Miracle Network Telethon, adds another number to the tote board."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Scores of circles form the huge botanical tube, focus of the ambitious Myriad Gardens project could be completed by spring 1985."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Mathematical models and numerical methods for a two-dimensional porous body simulation of steady state and transient thermal-hydraulics conditions in LMFBR subassemblies resulting in the TWIST computer code are presented. Comparison of calculated results to steady state and transient out-of-pile sodium experiments show good agreement for cross-assembly temperature distributions for a wide range of heat transfer and flow conditions.

Sensitivity analysis of practical problems can be performed systematically and very efficiently by using adjoint functions. In areas of interest to nuclear reactors, this efficiency has been amply demonstrated on several widely used codes for neutronics and/or thermal hydraulic calculations. Applications of the adjoint method of sensitivity analysis to models involving phase transitions, where non-differentiability occurs, do not seem to have been reported to date. The purpose of this paper is to report results from a successful adjoint sensitivity analysis of a space- and time-dependent system where phase transition occurs due to boiling. The specific model chosen for this analysis is a simplified but representative model of a BWR pump-trip-type accident. This model is of particular importance to BWR safety, since pump failure is one of the most limiting hypothetical accidents in BWR's. This model simulates an exponential flow decay of initially subcooled FREON-114 flowing through a heated channel and undergoing boiling transition.

As a part of an ongoing, EPRI-sponsored project whose aim is the quantification and reduction of fluence uncertainties in the pressure vessel of operating PWR's, this work describes the calculation of sensitivities necessary for the propagation of PWR core source distribution uncertainties to the flux spectrum at locations of interest (e.g., the cavity or T/4 pressure vessel locations) in the AN0l reactor. In this case standard perturbation theory requires an adjoint run to be made for each group flux since each group flux is a response. An alternate approach has been developed by Cacuci which should be more efficient than the standard approach although it has not yet been applied to a flux spectrum response.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The new El Chico, this one on NW Expressway, features a relaxed interior look, with high ceilings and an array of greenery."

Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.

Semiweekly newspaper from Levelland, Texas that includes local, state, and national news along with advertising.

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

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.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jana L. Seikel"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A old photograph brings happy memories to alumni of Soldier Creek Elementary School in Midwest City."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Three rows of volunteers man telephones at the Miracle Network, held over the weekend at the Oklahoma Theater Center (to raise money for medical research for children.)"

Photograph used for a newspaper owned by the Oklahoma Publishing Company.