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Serial/Series Title
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Results:
1 - 24 of
413
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The Albany News (Albany, Tex.), Vol. 123, No. 30, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
December 24, 1998
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 99, No. 244, Ed. 1 Thursday, December 24, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Archer County News (Archer City, Tex.), No. 52, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Archer City, Texas that includes local, state and national news along with advertising.
Date:
December 24, 1998
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 145, No. 85, Ed. 1 Thursday, December 24, 1998
Semi-weekly newspaper from Bastrop, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
McAuley, Davis
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 47, Ed. 1 Thursday, December 24, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
The Big Lake Wildcat (Big Lake, Tex.), Vol. SEVENTY THIRD YEAR, No. 52, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Big Lake, Texas that includes local, state and national news along with advertising.
Date:
December 24, 1998
Creator:
Werst, David
Object Type:
Newspaper
System:
The Portal to Texas History
Bogata News (Bogata, Tex.), Vol. 88, No. 33, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Nichols, Nanalee & Nichols, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 108, No. 52, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
December 24, 1998
Creator:
Ezzell, Nancy & Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
Cherokeean/Herald (Rusk, Tex.), Vol. 149, No. 44, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
December 24, 1998
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
Comanche Chief (Comanche, Tex.), Vol. 124, No. 33, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
DART Cotton Bowl Service takes to the field January 1
News release about service and fares to the 1999 Cotton Bowl Classic football game.
Date:
December 24, 1998
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
Development of GaAs-Based Monolithic Surface Acoustic Wave Devices for Chemical Sensing and RF Filter Applications
Since their invention in the mid-1960's, surface acoustic wave (SAW) devices have become popular for a wide variety of applications. SAW devices represent a low-cost and compact method of achieving a variety of electronic signal processing functions at high frequencies, such as RF filters for TV or mobile wireless communications [1]. SAW devices also provide a convenient platform in chemical sensing applications, achieving extremely high sensitivity to vapor phase analytes in part-per-billion concentrations [2]. Although the SAW acoustic mode can be created on virtually any crystalline substrate, the development of SAW technology has historically focused on the use of piezoelectric materials, such as various orientations of either quartz or lithium niobate, allowing the devices to be fabricated simply and inexpensively. However, the III-V compound semiconductors, and GaAs in particular, are also piezoelectric as a result of their partially covalent bonding and support the SAW acoustic mode, allowing for the convenient fabrication of SAW devices. In addition, GaAs microelectronics has, in the past decade, matured commercially in numerous RF wireless technologies. In fact, GaAs was recognized long ago as a potential candidate for the monolithic integration of SAW devices with microelectronics, to achieve compact RF signal processing functions [3]. The details …
Date:
December 24, 1998
Creator:
Baca, A. G.; Casalnuovo, S. A.; Drummond, T. J.; Frye, G. C.; Heller, E. J.; Hietala, V. M. et al.
Object Type:
Article
System:
The UNT Digital Library
Effects of Hydrogen Implantation into GaN
Proton implantation in GaN is found to reduce the free carrier density through two mechanisms - first, by creating electron and hole traps at around Ec-0.8eV and Ev+0.9eV that lead to compensation in both n- and p-type material, and second, by leading to formation of (AH)O complexes, where A is any acceptor (Mg, Ca, Zn, Be, Cd). The former mechanism is usefid in creating high resistivity regions for device isolation, whereas the latter produces unintentional acceptor passivation that is detrimental to device performance. The strong affinity of hydrogen for acceptors leads to markedly different redistribution behavior for implanted in n- and p-GaN due to the chemical reaction to form neutral complexes in the latter. The acceptors may be reactivated by simple annealing at 2600{degrees}C, or by electron injection at 25-150{degrees}C that produces debonding of the (AH) centers. Implanted hydrogen is also strongly attracted to regions of strain in heterostructure samples during annealing, leading to pile-up at epi-epi and epi-substrate interfaces. II? spectroscopy shows that implanted hydrogen also decorates VG, defects in undoped and n-GaN.
Date:
December 24, 1998
Creator:
Abernathy, C.R.; Han, J.; Pearton, S.J.; Shul, R.J.; Song, C.Y.; Stavola, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Electra Star-News (Electra, Tex.), Vol. 94, No. 19, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, December 24, 1998
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Garber Billings News (Garber, Okla.), Vol. 99, No. 11, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 105, No. 22, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 24, 1998
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History
Hazardous Waste Sites: State Cleanup Practices
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO: (1) identified practices that are both used in selected state programs at sites that may be contaminated enough to qualify for long-term cleanup under the Superfund program and that are believed by state officials to reduce the time and expense of cleanups; and (2) obtained the views of the Environmental Protection Agency (EPA), environmentalists, and other stakeholders about whether the states' practices may be applicable to the Superfund program."
Date:
December 24, 1998
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Hondo Anvil Herald (Hondo, Tex.), Vol. 112, No. 52, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Hondo, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 24, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Inversion of Passive Electromagnetic Fields to Locate Weapons of Mass Destruction
A resolution study, employing a 3D nonlinear optimization technique, has been undertaken to study the viability of magnetotelluric (MT) measurements to detect and characterize buried facilities that make weapons of mass destruction. A significant advantage of the MT method is that no active source is required because the method employs passive field emissions. Thus measurements can be carried out covertly. Findings indicate it is possible to image WMD facilities, including depth of burial and lateral extent if a sufficient number of measurements are taken on the perimeter of the facility. Moreover if a station measurement can be made directly over the facility then the resolution is improved accordingly. In all cases it was not possible to image the base of the facility with any confidence as well as provide any precise inferences on the facility electrical conductivity. This later finding, however, is really not that critical since knowledge of facility geometry is far more important than knowledge of its conductivity. For the WMD problem it is recommended that MT measurements be made solely with the magnetic field ratios. In this context it would then be possible to deploy with far greater ease small coils about a suspected facility and would …
Date:
December 24, 1998
Creator:
Day, D.M. & Newman, G.A.
Object Type:
Report
System:
The UNT Digital Library
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 26, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon's Monitor (De Leon, Tex.), Vol. 4, No. 25, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Chupp, Charles & Chupp Holdman, Tracy
Object Type:
Newspaper
System:
The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 111, No. 11, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Stephenson, Jimmy
Object Type:
Newspaper
System:
The Portal to Texas History
News Bulletin (Castroville, Tex.), Vol. 39, No. 52, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 24, 1998
Creator:
Barnes, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History