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: "Hoping a dragon-headed raft will strike fear into the hearts of their opponents, these three Oklahoma City boatmen will sail an unusual vessel in Tulsa's seventh annual Great Raft Race in the Arkansas River Monday."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Veronica and Max Kupczynski look proudly over the cherished high school diploma."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Tommie Holcomb, a fifth year reading teacher at Southgate Elementary, gets students started."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Freshman split end Mark Cromer fined the plush carpeting in OSU's new dressing room a dandy place to sit while lacing his shoes."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Construction work on the new Reno Street bridge near downtown Oklahoma City was slightly ahead of schedule last week until Thursday night and Friday morning's downpour, the Oklahoma State Transportation Department said."

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.

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.

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.

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.

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

Some aspects of underwater explosions and cavitation phenomena have been studied by using a thermodynamic equation of state for water and a one-dimensional Lagrangian hydrocode. The study showed that surface cavitation is caused by the main blast wave and a bubble pulse from rebound of a release wave moving toward the center of the exploding bubble. Gravity has little effect on the surface cavitation. In nuclear explosions the bubble is bounded by a two-phase region rather than a gas-water interface. The two-phase region cavitates as the bubble expands, changing the optical absorption coefficient by many orders of magnitude and significantly affecting the optical signature. In assessing cavitation damage, it is concluded that a water jet of unstable bubble collapse erodes solid walls. The study leads to suggestions for future research.

A technique for measuring primary creep was developed which facilitates rapid load application to high temperature creep samples. Creep strain measurements for times as short as one second can be made. The strain as a function of time has a logarithmic relationship with a time exponent of 0.7 +- 0.1. Although the resulting expression is in conflict with the normal way of describing the high temperature deformation of fuel under stress, it is possible to incorporate so-called steady state creep into the proposed primary creep relationship. (FS)

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.

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 newspaper owned by the Oklahoma Publishing Company.