Fuel investigation, Mexican petroleum. Progress report pursuant to H. Res. 595, Eightieth Congress.

Charles A. Wolverton, chairman.

Development of transit coach bonded brake lining test equipment and test procedures. Progress report. Final report.

Urban Mass Transportation Administration, Washington, D.C.

Energy from the West : a progress report of a technology assessment of western energy resource development : executive summary : prepared for Office of Research and Development, Environmental Protection Agency /

"Contract no. 68-01-1916."

Systems Research and Development Service, progress report, August 8-9, 1978.

Issued Aug. 1978.

Performance management in the District of Columbia : a progress report : hearing before the Subcommittee on Oversight of Government Management, Restructuring, and the District of Columbia of the Committee on Governmental Affairs, United States Senate, One Hundred Sixth Congress, second session, May 9, 2000.

Shipping list no.: 2001-0042-P.

Progress report on plant studies: the fixation and absorption of fission products by plants /

Bibliography: p. 6.

The development of an apparatus for cutting tooth structure by means of ultrasonic vibrations. research progress report.

"Project no. NM 008 015.08"

Progress report on senile dementia of the Alzheimer's type /

Mode of access: Internet.

Sequential purification and crystal growth for the production of low cost silicon substrates : quarterly technical progress report no. 1, September 15-December 31, 1979 /

"February 1980."

Photovoltaic mechanisms in polycrystalline thin film silicon solar cells : quarterly technical progress report no. 1, July 30-October 31, 1980 /

"Work Performed Under Contract No. AC02-77CH00178."

Sequential purification and crystal growth for the production of low cost silicon substrates : quarterly technical progress report no. 3, April 1-June 30, 1980 /

"August 1980."

Photoelectronic properties of zinc phosphide crystals, films and heterojunctions : quarterly progress report no. 6 for the period July 1 - September 30, 1980 /

The purpose of this research program is to investigate the photoelectronic properties of zinc phosphide (Zn₃P₂ in single crystal form, in thin-film form, and in heterojunctions in which Zn₃P₂ forms one of the elements. This research will be directed toward understanding the role of crystalline defects and impurities in Zn₃P₂, the nature of the electronic charge transport in single crystal and thin-film material, and the properties of photovoltaic heterojunctions involving Zn₃P₂. The scope of the program extends from basic investigations of materials properties on single crystals to the preparation and characterization of all-thin-film heterojunction divices. One of the principal motivations behind this research program is the realization that Zn₃P₂ is a relatively uninvestigated yet ideal component for photovoltaic heterojunction use in solar energy conversion. The proposed program will concentrate on the basic materials problems involved with Zn₃P₂, providing the kind of information needed for other more developmental programs directed toward actual practical cells.

Advanced photovoltaic concentrator cells : quarterly technical progress report no. 5 for period September 1 - November 30, 1980 /

"Work Performed Under Contract No. AC02-77CH00178."

Commercialization of a thick film solar cell : quarterly technical progress report for April 1 - June 30, 1980 /

"Work Performed Under Contract No. AC02-77CH00178."

Commercialization of a thick film solar cell : quarterly technical progress report for period September 1 - October 1, 1980 /

"Work Performed Under Contract No. AC02-77CH00178."