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Potential for efficient frequency conversion at high average power using solid state nonlinear optical materials
High-average-power frequency conversion using solid state nonlinear materials is discussed. Recent laboratory experience and new developments in design concepts show that current technology, a few tens of watts, may be extended by several orders of magnitude. For example, using KD*P, efficient doubling (>70%) of Nd:YAG at average powers approaching 100 KW is possible; and for doubling to the blue or ultraviolet regions, the average power may approach 1 MW. Configurations using segmented apertures permit essentially unlimited scaling of average power. High average power is achieved by configuring the nonlinear material as a set of thin plates with a large ratio of surface area to volume and by cooling the exposed surfaces with a flowing gas. The design and material fabrication of such a harmonic generator are well within current technology.
Date:
October 28, 1985
Creator:
Eimerl, D.
Object Type:
Report
System:
The UNT Digital Library
Selected Federal Programs in Which Non-Public Elementary and Secondary Schools and Children May Participate
This report discusses federal educational and nutritional assistance programs available to children attending private schools.
Date:
October 28, 1970
Creator:
Campbell, Colleen
Object Type:
Report
System:
The UNT Digital Library
[News Script: Dallas City Council]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
October 28, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
Comprehensive Drug Abuse Prevention and Control Act of 1970 (P.L. 91-513): Summary of Major Provisions
This report discusses the main provisions of the Comprehensive Drug Abuse Prevention and Control Act of 1970.
Date:
October 28, 1970
Creator:
Hogan, Harry L.
Object Type:
Report
System:
The UNT Digital Library
Amplified-response-spectrum analysis of sodium-water reaction pressure waves. [LMFBR]
This report deals with a frequency spectrum evaluation of the SWAAM I predicted double rupture disc assembly operation pressure wave generated in the LLTR Series II A-2 test. It also evaluates the same wave predicted by the TRANSWRAP II code and the pressure wave actually measured upstream of the rupture disc assembly by the test instrumentation in Test A-2. The SWAAM I and TRANSWRAP II codes currently use the same analytical model to characterize the rupture disc until the disc strikes the knife edges. Thereafter, the SWAAM I code relies on analytical techniques to characterize the phenomena, whereas the TRANSWRAP II code uses empirical parameters based on A-2 test data to represent the disc behavior. Any differences in the predicted dynamic pipe loads caused by double rupture disc assembly operation, using the forcing functions predicted by the codes can, therefore, be traced to this difference.
Date:
October 28, 1981
Creator:
Knittle, D.E.
Object Type:
Report
System:
The UNT Digital Library
Solar heating and cooling of buildings: Phase I (non-residential). InterTechnology/Solar Corporation cost/benefit analysis report and supporting opinion survey, commercial buildings. National Solar Demonstration Program, executive summary
A parametric study was performed to provide an estimate of the number of non-residential solar demonstration projects that will be required to start a commercial industry in solar equipment manufacturing, marketing, financing, and installation. An opinion survey was conducted among several experts in the field and results are shown. A techno-economic computer simulation of the solar industry was constructed. This simulation predicts the response of the marketplace to the ERDA program. The computer model showed that ERDA should offer to pay 75% of the initial cost of the system plus 90% of the maintenance and insurance costs over the next 20 years. The predicted response of the marketplace to the ERDA offer of 75%/90% is that 667 demonstration units would be built in all regions of the country, except the region around Seattle, Washington. (MHR)
Date:
October 28, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Computer graphics for extracting information from data. [Various techniques for data display]
Computer graphics which are useful for displaying and analyzing data are presented. Many classical and several newly developed graphical techniques in statistical data analysis are presented for small univariate and multivariate data sets. These include histograms, empirical density functions, pie charts, contour plots, a discriminant analysis display, cluster analysis, Chernoff ''faces,'' and Andrews' sine curves. Recent advances in data collection technology and computer data base management systems have made it imperative to utilize computer graphics for large data sets. Several innovative graphical techniques are presented to handle this situation. Spatial relationships among the data (particularly geographic data) are difficult to conceptualize. Several cartographic techniques are presented which enhance the understanding of these spatial relationships within the data.
Date:
October 28, 1977
Creator:
Lohrding, R. K.; Johnson, M. M. & Whiteman, D. E.
Object Type:
Article
System:
The UNT Digital Library
TAN/LOFT 13. 8 KV, 2. 4 KV, and 480 V relay and circuit breaker coordination study
Present overcurrent relay settings are presented and evaluated for adequacy in terms of the updated short circuit analysis. Recommendations are made for new relay and trip device settings to improve coordination. Switchgear ratings are examined against available short circuit currents, and recommendations are made where applicable. Vital MCC-A and B are examined in detail to provide maximum continuity of service for every fault contingency. A recommendation is made to improve the reliability of these buses.
Date:
October 28, 1977
Creator:
Burnett, J.E.
Object Type:
Report
System:
The UNT Digital Library
Colorado State University Program for Developing, Testing, Evaluating and Optimizing Solar Heating and Cooling Systems
The objective is to develop and test various integrated solar heating, cooling and domestic hot water systems, and to evaluate their performance. Systems composed of new, as well as previously tested, components are carefully integrated so that effects of new components on system performance can be clearly delineated. The SEAL-DOE program includes six tasks which have received funding for the 1991--92 fifteen-month period. These include: (1) a project employing isothermal operation of air and liquid solar space heating systems; (2) a project to build and test several generic solar water heaters; (3) a project that will evaluate advanced solar domestic hot water components and concepts and integrate them into solar domestic hot water systems; (4) a liquid desiccant cooling system development project; (5) a project that will perform system modeling and analysis work on solid desiccant cooling systems research; and (6) a management task. The objectives and progress in each task are described in this report. 6 figs.
Date:
October 28, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Development of improved iron Fischer-Tropsch catalysts
The objective of proposed research is development of catalysts with enhanced slurry phase activity and better selectivity to fuel range products, through a more detailed understanding and systematic studies of the effects of pretreatment procedures and promoters/binders (silica) on catalyst performance.
Date:
October 28, 1991
Creator:
Bukur, D.B.
Object Type:
Report
System:
The UNT Digital Library
Guest Artist Recital: 2017-10-28 – Baumer String Quartet
Access:
Use of this item is restricted to the UNT Community
Guest artist recital presented at the UNT College of Music Voertman Hall.
Date:
October 28, 2017
Creator:
Baumer String Quartet
Object Type:
Video
System:
The UNT Digital Library
Thermal effects and mirror surface figure requirements for a diagnostic beamline at the Advanced Light Source
An imaging beamline based on a Kirkpatrick-Baez mirror configuration has been designed to image the electron beam in the ALS storage ring, to measure its size and shape. The electron beam emittance will be small ({epsilon}h = 3.4 {times} 10{sup {minus}9} m rad) and the quality of the image is extremely sensitive to surface figure distortion of the mirrors. Thermal distortions and surface temperatures have been calculated for radiatively cooled mirrors of various materials in a search for a simple design which avoids water cooling. The choice of mirror material and the thermal and mechanical design is discussed. 6 refs.
Date:
October 28, 1991
Creator:
Warwick, T. (Lawrence Berkeley Lab., CA (United States)) & Sharma, S. (Brookhaven National Lab., Upton, NY (United States))
Object Type:
Article
System:
The UNT Digital Library
The Greer County Democrat (Mangum, Okla.), Vol. 26, No. 7, Ed. 1 Thursday, October 28, 1915
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1915
Creator:
Watt, W. O.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla.), Vol. 22, No. 18, Ed. 2 Thursday, October 28, 1909
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1909
Creator:
Farris, Giles W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 8, No. 34, Ed. 1 Thursday, October 28, 1915
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1915
Creator:
Powell, Eugene
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat. (Altus, Okla.), Vol. 3, No. 30, Ed. 1 Thursday, October 28, 1909
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1909
Creator:
Ruthruff, C. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla.), Vol. 22, No. 18, Ed. 1 Thursday, October 28, 1909
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1909
Creator:
Farris, Giles W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Madill News. (Madill, Indian Terr.), Vol. 10, No. 16, Ed. 1 Friday, October 28, 1904
Weekly newspaper from Madill, Indian Territory that includes local, territorial, and national news along with advertising.
Date:
October 28, 1904
Creator:
Kendall, Clyde P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Weekly News. (Altus, Okla.), Vol. 16, No. 35, Ed. 1 Thursday, October 28, 1915
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
October 28, 1915
Creator:
Orr, J. P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Weekly News (Altus, Okla.), Vol. 21, No. 36, Ed. 1 Thursday, October 28, 1920
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
October 28, 1920
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 30, No. 35, Ed. 2 Thursday, October 28, 1920
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1920
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 25, No. 34, Ed. 1 Thursday, October 28, 1915
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1915
Creator:
Zimmerman, Warren
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 19, No. 33, Ed. 1 Thursday, October 28, 1909
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1909
Creator:
Zimmerman, Warren
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Sentinel Leader. (Sentinel, Okla.), Vol. 7, No. 13, Ed. 1 Friday, October 28, 1910
Weekly newspaper from Sentinel, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 28, 1910
Creator:
Inglish, G. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History