An investigation of available data on the saturation state of seawater with respect to calcium carbonate and its possible significance for scale formation on Ocean Thermal Energy Conversion (OTEC) heat exchangers has been carried out. Pertinent oceanographic data is lacking at or near potential OTEC sites for the calculation of the degree of saturation of seawater with respect to calcium carbonate. Consequently, only ''extrapolated'' saturation values can be used. These indicate that near surface seawater is probably supersaturated, with respect to the calcium carbonate phases calcite and aragonite, at all potential OTEC sites. The deep seawater that would be brought to the surface at the potential Atlantic Ocean sites is also likely to be supersaturated with respect to calcium carbonate. The deep seawater at the potential Pacific Ocean sites may be slightly undersaturated. The fact that OTEC heat exchangers will be operating in seawater, which is supersaturated with respect to calcium carbonate, means that if nucleation of calcite or aragonite occurs on the heat exchanger surfaces, significant growth rates of calcium carbonate scale may be expected. The potential for calcium carbonate nucleation is highest at cathodic metal surface locations, which are produced as the result of aluminum corrosion in seawater. …

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Edmond Cub Scouts present handmade wooden toys to Mrs. Fredia Mosley at Children's Memorial Hospital in Oklahoma City."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Community support, however, is minimal, according to Leonardo DeBose, CRE-O director."

The objective of Phase I of this project is to support the Solar Central Receiver Power Plant research, development and demonstration effort by: (1) Establishment of a heliostat design, with associated manufacturing, assembly, installation and maintenance approaches, that, in quantity production will yield significant reductions in capital and operating costs over an assumed 30 year plant lifetime as compared with existing designs. (2) Identification of needs for near term and further research and development in heliostat concept, materials, manufacture, installation, maintenance, and other areas, where successful accomplishment and application would offer significant payoffs in the further reduction of the cost of electrical energy from Solar Central Receiver Power Plants. The Phase I study will define a low-cost heliostat preliminary design and the conceptual design of a heliostat manufacturing/installation plan which will result in low life cycle cost when produced and installed at high rate and large quantities for commercial Solar Central Receiver Power Plants. The study will develop the annualized life cycle cost and the performance of heliostats for a 30 year plant life, for each of three rates of continuous production and installation. The three specified rates are 25,000, 250,000, and 1,000,000 heliostats per year. The analysis of these …

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

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Doctors, nurse and medical technicians, all dressed appropriately make up a complete hospital staff for Shirley Grell's doll collection."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "You can't imagine what it was like -- for 10 months, my life revolved around a six-foot chain. That chain linked me to a wall and that was it -- that was my world," said James H. Hestand a former Army Helicopter pilot who is now an El Reno Policeman."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Ed runs with an eye toward the Boston Marathon."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "James H. Hestand (El Reno Policeman) w/ model of helicopter he flew in Vietnam."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Oklahoma County Democratic Women planning the annual registration tea open to the public Sunday in the Blue Room of the State Capitol are Mrs. Mary Hestand, left, public relations chairman and Mrs. Murl Buffaloe, general chairman."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "James H. Hestand (El Reno Policeman) displays the chain that held him in his cell."

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "James Harley Hestand"

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

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "O-State shortstop Greg Pastors takes a spill after forcing OCU's Ricky Smith at second during first game action."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "It goes by several names -- Indian German silver techniques, contemporary Plains metalwork, sheet fabrication jewelry --bur to Bruce Caesar, it's his life's work."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "TCU shortstop Doug Hudspeth leaps high to avoid slide of OU's Rob Robison after forcing Sooner outfielder at second."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Leopold Kahng, 5, son of Mr. and Mrs. Seun K. Kahng of Norman, is one of more than 40 pre-schoolers taking advantage of extended learning experiences at the Institute of Child Development."

The fabrication and testing phase of the program to develop a shingle-type solar cell module is well underway. Six modules are currently being subjected to a qualification testing program which consists of both thermal cycling and humidity exposures followed by a mechanical integrity test to simulate wind loads. Fabrication of the remainder of the 50 deliverable modules is proceeding.

Experimental values for the kerma per unit fluence at the neutron energy, E/sub n/ = 15 MeV, have been determined for graphite, Mg, and Fe. Ion chambers of small size with walls of these materials were employed, and were filled with a variety of gases--N/sub 2/, CO/sub 2/, Ne, Ar, Kr, and Xe. A calibrated neutron source was employed, allowing a straightforward determination of the kerma per unit fluence.

Letter from Eduardo Morgo, then current president of the League of United Latin American Citizens, to Roberto Ornelas, past president of LULAC, dated April 5, 1978. Morga explains in the letter the issues he has with Ornelas, Joseph R. Benites, and the way LULAC was run under their leadership. The letter was copied to LULAC memebers.

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.

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