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352-MHz klystron performance at the Advanced Photon Source.
None
Date:
April 13, 1999
Creator:
Horan, D.
Object Type:
Article
System:
The UNT Digital Library
2000 Census: Information on the Implications of a Post Census Local Review Program
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on how census operations and data accuracy could be affected if the Bureau of the Census were to include a coverage improvement program known as Post Census Local Review (PCLR) in the 2000 census."
Date:
October 13, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Accelerated Life Testing and Service Lifetime Prediction for PV Technologies in the Twenty-First Century
The purposes of this paper are to (1) discuss the necessity for conducting accelerated life testing (ALT) in the early stages of developing new photovoltaic (PV) technologies, (2) elucidate the crucial importance for combining ALT with real-time testing (RTT) in terrestrial environments for promising PV technologies for the 21st century, and (3) outline the essential steps for making a service lifetime prediction (SLP) for any PV technology. The specific objectives are to (a) illustrate the essential need for ALT of complete, encapsulated multilayer PV devices, (b) indicate the typical causes of degradation in PV stacks, (c) elucidate the complexity associated with quantifying the durability of the devices, (d) explain the major elements that constitute a generic SLP methodology, (e) show how the introduction of the SLP methodology in the early stages of new device development can reduce the cost of technology development, and (f) outline the procedure for combining the results of ALT and RTT, establishing degradation mechanisms, using sufficient numbers of samples, and applying the SLP methodology to produce a SLP for existing or new PV technologies.
Date:
July 13, 1999
Creator:
Czanderna, A. W. & Jorgensen, G. J.
Object Type:
Article
System:
The UNT Digital Library
Acceptance Test Procedure for New Pumping and Instrumentation Control Skid N
This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping and Instrumentation Control (PIC) skid designed as ''N''. The ATP will be performed after the construction of the PIC skid in the shop.
Date:
December 13, 1999
Creator:
Koch, M. R.
Object Type:
Report
System:
The UNT Digital Library
Addendum to the Corrective Action Investigation Plan for Corrective Action Unit 447, Project Shoal Area, Nevada Subsurface Site, Revision 1, April 1999
The report is an addendum to Chapter 6.0, ''Field Investigation,'' of the Corrective Action Investigation Plan for Corrective Action Unit 447: Project Shoal Area, Nevada Subsurface Site, DOE/NV--513. Sections 6.0 and 6.1 in DOE/NV--513 continue to stand, with the sections below following after them. These new sections represent information that was not available at the time DOE/NV--513 was issued.
Date:
April 13, 1999
Creator:
United States. Department of Energy. Nevada Operations Office.
Object Type:
Report
System:
The UNT Digital Library
Advanced Processing of CdTe- and CuInxGa1-xSe2-Based Solar Cells: Final Report: 18 April 1995 - 31 May 1998
This report summarizes work performed by the University of South Florida Department of Electrical Engineering under this subcontract. The Cadmium telluride(CdTe) portion of this project deals with the development of high-efficiency thin-filmed CdTe solar cells using fabrication techniques that are suitable for manufacturing environments.
Date:
January 13, 1999
Creator:
Morel, D. L.; Ferekides, C. S.; Bhatt, R.; Jayapalan, A.; Komin, V.; Lin, H. et al.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 123, No. 50, Ed. 1 Thursday, May 13, 1999
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
May 13, 1999
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
Alternatives Generation Analysis Long Length Contaminated Equipment Removal System Storage
The long length contaminated equipment was designed and built to aid in the remote removal and transport of highly radioactive, contaminated equipment from various locations in the tank farms to disposal. The equipment has been stored in an open lay-down yard area, exposed to the elements for the past year and a half. The possible alternatives available to provide shelter for the equipment are investigated.
Date:
August 13, 1999
Creator:
Boger, R. M.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 99, No. 260, Ed. 1 Wednesday, January 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 13, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 23, Ed. 1 Tuesday, April 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 13, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 49, Ed. 1 Thursday, May 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 13, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 72, Ed. 1 Sunday, June 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 13, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 98, Ed. 1 Tuesday, July 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 13, 1999
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 124, Ed. 1 Friday, August 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 13, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 150, Ed. 1 Monday, September 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 13, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 176, Ed. 1 Wednesday, October 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 13, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 229, Ed. 1 Monday, December 13, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 13, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, January 13, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 13, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, October 13, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
October 13, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 108, No. 88, Ed. 1 Sunday, June 13, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
June 13, 1999
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Sun (Alvin, Tex.), Vol. 108, No. 112, Ed. 1 Monday, September 13, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
September 13, 1999
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Sun (Alvin, Tex.), Vol. 108, No. 139, Ed. 1 Monday, December 13, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
December 13, 1999
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
AMS of heavy elements with an ECR ion source and the ATLAS linear accelerator.
Understanding the fate of heavy-metal contaminants in the environment is of fundamental importance in the development and evaluation of effective remediation and sequestration strategies. Among the factors influencing the transport of these contaminants are their chemical speciation and the chemical and physical attributes of the surrounding medium. Bacteria and the extracellular material associated with them are thought to play a key role in determining a contaminant's speciation and thus its mobility in the environment. In addition, the microenvironment at and adjacent to actively metabolizing cell surfaces can be significantly different from the bulk environment. Thus, the spatial distribution and chemical speciation of contaminants and elements that are key to biological processes must be characterized at micron and submicron resolution in order to understand the microscopic physical, geological, chemical, and biological interfaces that determine a contaminant's macroscopic fate. Hard x-ray microimaging is a powerful technique for the element-specific investigation of complex environmental samples at the needed micron and submicron resolution. An important advantage of this technique results from the large penetration depth of hard X-rays in water. This advantage minimizes the requirements for sample preparation and allows the detailed study of hydrated samples. This paper presents results of studies of the …
Date:
December 13, 1999
Creator:
Paul, M.; Berkovits, D.; Ahmad, I.; Borasi, F.; Caggiano, J.; Davids, C. et al.
Object Type:
Article
System:
The UNT Digital Library
An analog RF gap voltage regulation system for the Advanced Photon Source storage ring.
An analog rf gap voltage regulation system has been designed and built at Argonne National Laboratory to maintain constant total storage ring rf gap voltage, independent of beam loading and cavity tuning effects. The design uses feedback control of the klystron mod-anode voltage to vary the amount of rf power fed to the storage ring cavities. The system consists of two independent feedback loops, each regulating the combined rf gap voltages of eight storage ring cavities by varying the output power of either one or two rf stations, depending on the mode of operation. It provides full operator control and permissive logic to permit feedback control of the rf system output power only if proper conditions are met. The feedback system uses envelope-detected cavity field probe outputs as the feedback signal. Two different methods of combining the individual field probe signals were used to generate a relative DC level representing one-half of the total storage ring rf voltage, an envelope-detected vector sum of the field probe rf signals, and the DC sum of individual field probe envelope detector outputs. The merits of both methods are discussed. The klystron high-voltage power supply (HVPS) units are fitted with an analog interface for …
Date:
April 13, 1999
Creator:
Horan, D.
Object Type:
Article
System:
The UNT Digital Library