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5,899 Matching Results

Start Over Month July Day 29th Language English

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Results: 1 - 24 of 5,899 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
Low cost solar collector of a packed bed design (open access)

Low cost solar collector of a packed bed design

Two solar collectors using a pebble bed design were constructed and tested using air as the heat exchange media. One collector had pebbles of metallurgical grade coke, and the other had a frothy volcanic material called scoria. The highly irregular surface of such vesicular material should increase the path distance for the air and the surface exposed cavities should give some honeycomb effect. Both should yield greater efficiency. Actual testing shows the efficiencies to be comparable with other air collectors. Thus the advantages of the pebble bed lie in the availability of the bed material, its thermal and radiation stability, and its shielding of underlying collector materials from ultraviolet radiation. Several pebble bed collectors using water as the heat exchange media were constructed. However, basic problems prevented effective testing, and it is concluded that pebble bed collectors using water are impractical.
Date: July 29, 1977
Creator: Simpson, D.R.
Object Type: Report
System: The UNT Digital Library
Control of beam dynamics in high energy induction linacs (open access)

Control of beam dynamics in high energy induction linacs

The Advent of laser-ion-guiding in the Advanced test Accelerator along with the development of accelerator cavities optimized with respect to beam breakup coupling impedence now make it possible to consider a new class of high current, high emergy linear induction accelerators. The control of the beam breakup and other instabilities by laser guiding and by various magnetic focusing schemes will be discussed along with the scaling laws for the design of such machines to minimize the growth of the beam breakup instability. Many linacs, particularly induction linacs are limited in performance by the beam breakup (BBU) instability. The instability is found in two forms. In the first form the accelerating cavities communicate with one another through interaction with the beam and through propagation of cavity fields through the accelerator structure. In the second form which is the more virulent of the two, the cavities couple to each other only through their interactions with the beam. It is this second form of PPU that will be discussed in this paper.
Date: July 29, 1986
Creator: Caporaso, G.J.
Object Type: Article
System: The UNT Digital Library
TMX tandem-mirror experiments and thermal-barrier theoretical studies (open access)

TMX tandem-mirror experiments and thermal-barrier theoretical studies

This paper describes recent analysis of energy confinement in the Tandem Mirror Experiment (TMX). TMX data also indicates that warm plasma limits the amplitude of the anisotropy driven Alfven ion cyclotron (AIC) mode. Theoretical calculations show strong AIC stabilization with off-normal beam injection as planned in TMX-U and MFTF-B. This paper reports results of theoretical analysis of hot electrons in thermal barriers including electron heating calculations by Monte Carlo and Fokker-Planck codes and analysis of hot electron MHD and microinstability. Initial results from the TMX-U experiment are presented which show the presence of sloshing ions.
Date: July 29, 1982
Creator: Simonen, T. C.; Baldwin, D. E. & Allen, S. L.
Object Type: Article
System: The UNT Digital Library
TMX tandem-mirror experiments and thermal-barrier theoretical studies (open access)

TMX tandem-mirror experiments and thermal-barrier theoretical studies

This paper describes recent analysis of energy confinement in the Tandem Mirror Experiment (TMX). TMX data also indicates that warm plasma limits the amplitude of the anisotropy driven Alfven ion cyclotron (AIC) mode. Theoretical calculations show strong AIC stabilization with off-normal beam injection as planned in TMX-U and MFTF-B. This paper reports results of theoretical analysis of hot electrons in thermal barriers including electron heating calculations by Monte Carlo and Fokker-Planck codes and analysis of hot electron MHD and microinstability. Initial results from the TMX-U experiment are presented which show the presence of sloshing ions.
Date: July 29, 1982
Creator: Simonen, T. C.; Baldwin, D. E. & Allen, S. L.
Object Type: Article
System: The UNT Digital Library
Thermoelectric refrigerator having improved temperature-stabilization means (open access)

Thermoelectric refrigerator having improved temperature-stabilization means

A control system for thermoelectric refrigerators is disclosed. The thermoelectric refrigerator includes at least one thermoelectric element that undergoes a first order change at a predetermined critical temperature. The element functions as a thermoelectric refrigerator element above the critical temperature but discontinuously ceases to function as a thermoelectric refrigerator element below the critical temperature. One example of such an arrangement includes thermoelectric refrigerator elements which are superconductors. The transition temperature of one of the superconductor elements is selected as the temperature control point of the refrigerator. When the refrigerator attempts to cool below the point, the metals become superconductors losing their ability to perform as a thermoelectric refrigerator. An extremely accurate, first-order control is realized.
Date: July 29, 1981
Creator: Falco, Charles M.
Object Type: Patent
System: The UNT Digital Library
The Mangum Star. (Mangum, Okla.), Vol. 22, No. 5, Ed. 1 Thursday, July 29, 1909 (open access)

The Mangum Star. (Mangum, Okla.), Vol. 22, No. 5, Ed. 1 Thursday, July 29, 1909

Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1909
Creator: Farris, Giles W.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Guthrie Daily News. (Guthrie, Okla. Terr.), Vol. 5, No. 1548, Ed. 1 Sunday, July 29, 1894 (open access)

Guthrie Daily News. (Guthrie, Okla. Terr.), Vol. 5, No. 1548, Ed. 1 Sunday, July 29, 1894

Daily newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date: July 29, 1894
Creator: Smith, Winfield Scott
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Greer County Democrat (Mangum, Okla.), Vol. 25, No. 46, Ed. 1 Thursday, July 29, 1915 (open access)

The Greer County Democrat (Mangum, Okla.), Vol. 25, No. 46, Ed. 1 Thursday, July 29, 1915

Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1915
Creator: Watt, W. O.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Oklahoma Weekly Leader (Guthrie, Okla.), Vol. 30, No. 22, Ed. 1 Thursday, July 29, 1920 (open access)

Oklahoma Weekly Leader (Guthrie, Okla.), Vol. 30, No. 22, Ed. 1 Thursday, July 29, 1920

Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1920
Creator: Niblack, Leslie G.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 8, No. 21, Ed. 1 Thursday, July 29, 1915 (open access)

The Oklahoma Democrat (Altus, Okla.), Vol. 8, No. 21, Ed. 1 Thursday, July 29, 1915

Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1915
Creator: Powell, Eugene
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Weekly News. (Altus, Okla.), Vol. 21, No. 23, Ed. 1 Thursday, July 29, 1920 (open access)

The Altus Weekly News. (Altus, Okla.), Vol. 21, No. 23, Ed. 1 Thursday, July 29, 1920

Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date: July 29, 1920
Creator: Keith, E. C.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Weekly News. (Altus, Okla.), Vol. 16, No. 22, Ed. 1 Thursday, July 29, 1915 (open access)

The Altus Weekly News. (Altus, Okla.), Vol. 16, No. 22, Ed. 1 Thursday, July 29, 1915

Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date: July 29, 1915
Creator: Orr, J. P.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 30, No. 22, Ed. 1 Thursday, July 29, 1920 (open access)

The Guymon Herald. (Guymon, Okla.), Vol. 30, No. 22, Ed. 1 Thursday, July 29, 1920

Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1920
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 19, No. 20, Ed. 1 Thursday, July 29, 1909 (open access)

The Guymon Herald. (Guymon, Okla.), Vol. 19, No. 20, Ed. 1 Thursday, July 29, 1909

Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1909
Creator: Zimmerman, Warren
Object Type: Newspaper
System: The Gateway to Oklahoma History
Cushing Independent. (Cushing, Okla.), Vol. 8, No. 36, Ed. 1 Thursday, July 29, 1909 (open access)

Cushing Independent. (Cushing, Okla.), Vol. 8, No. 36, Ed. 1 Thursday, July 29, 1909

Weekly newspaper from Cushing, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1909
Creator: Holland, Al. H.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Hooker Advance (Hooker, Okla.), Vol. 7, No. 25, Ed. 1 Friday, July 29, 1910 (open access)

Hooker Advance (Hooker, Okla.), Vol. 7, No. 25, Ed. 1 Friday, July 29, 1910

Weekly newspaper from Hooker, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1910
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 25, No. 21, Ed. 1 Thursday, July 29, 1915 (open access)

The Guymon Herald. (Guymon, Okla.), Vol. 25, No. 21, Ed. 1 Thursday, July 29, 1915

Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1915
Creator: Zimmerman, Warren
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Crowder City Guardian (Crowder, Oklahoma), Vol. 5, No. 39, Ed. 1 Friday, July 29, 1910 (open access)

The Crowder City Guardian (Crowder, Oklahoma), Vol. 5, No. 39, Ed. 1 Friday, July 29, 1910

Weekly newspaper from Crowder, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1910
Creator: Barrow, A. E.
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Sentinel Leader. (Sentinel, Okla.), Vol. 6, No. 52, Ed. 1 Friday, July 29, 1910 (open access)

The Sentinel Leader. (Sentinel, Okla.), Vol. 6, No. 52, Ed. 1 Friday, July 29, 1910

Weekly newspaper from Sentinel, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1910
Creator: Inglish, G. L.
Object Type: Newspaper
System: The Gateway to Oklahoma History
Tyrone Observer. (Tyrone, Okla.), Vol. 6, No. 51, Ed. 1 Thursday, July 29, 1909 (open access)

Tyrone Observer. (Tyrone, Okla.), Vol. 6, No. 51, Ed. 1 Thursday, July 29, 1909

Weekly newspaper from Tyrone, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1909
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Hobart Republican. (Hobart, Okla.), Vol. 7, No. 23, Ed. 1 Thursday, July 29, 1909 (open access)

The Hobart Republican. (Hobart, Okla.), Vol. 7, No. 23, Ed. 1 Thursday, July 29, 1909

Weekly newspaper from Hobart, Oklahoma that includes local, state, and national news along with advertising.
Date: July 29, 1909
Creator: Benedict, Roy
Object Type: Newspaper
System: The Gateway to Oklahoma History
Democratic Republic of Congo: Background and U.S. Policy (open access)

Democratic Republic of Congo: Background and U.S. Policy

The purpose of this report is to review the status of the Democratic Republic of the Congo peace process, provide background on recent conflicts in the Congo; briefly summarize the political history that led to these conflicts; and assess prospects for the future. U.S. Congo policy and congressional involvement are also described.
Date: July 29, 2013
Creator: Arieff, Alexis & Coen, Thomas
Object Type: Report
System: The UNT Digital Library
The European Parliament (open access)

The European Parliament

Report that provides background on the Congress-EP relationship and the role of the TLD. It also explores potential future options should an effort to strengthen ties between the two bodies gain momentum.
Date: July 29, 2013
Creator: Archick, Kristin
Object Type: Report
System: The UNT Digital Library
The Cimarron News. (Kenton, Okla.), Vol. 6, No. 52, Ed. 1 Friday, July 29, 1904 (open access)

The Cimarron News. (Kenton, Okla.), Vol. 6, No. 52, Ed. 1 Friday, July 29, 1904

Weekly newspaper from Kenton, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date: July 29, 1904
Creator: unknown
Object Type: Newspaper
System: The Gateway to Oklahoma History