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438 Matching Results
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The Optimist (Abilene, Tex.), Vol. 90, No. 23, Ed. 1, Wednesday, November 14, 2001
Tri-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
November 14, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Optimization of Processing and Modeling Issues for Thin Film Solar Cell Devices Including Concepts for the Development of Polycrystalline Multijunctions Annual Subcontract Report, 24 August 1999 - 23 August 2000
This report describes the results achieved during Phase I of a three-phase subcontract to develop and understand thin-film solar cell technology associated with CuInSe2 and related alloys, a-Si and its alloys, and CdTe. Modules based on all these thin films are promising candidates to meet DOE long-range efficiency, reliability, and manufacturing cost goals. The critical issues being addressed under this program are intended to provide the science and engineering basis for developing viable commercial processes and to improve module performance. The generic research issues addressed are: (1) quantitative analysis of processing steps to provide information for efficient commercial-scale equipment design and operation; (2) device characterization relating the device performance to materials properties and process conditions; (3) development of alloy materials with different bandgaps to allow improved device structures for stability and compatibility with module design; (4) development of improved window/heterojunction layers and contacts to improve device performance and reliability; and (5) evaluation of cell stability with respect to illumination, temperature, and ambient, and with respect to device structure and module encapsulation.
Date:
November 14, 2001
Creator:
Birkmire, R. W.; Phillips, J. E.; Shafarman, W. N.; Eser, E.; Hegedus, S. S. & McCandless, B. E.
Object Type:
Report
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 128, No. 92, Ed. 1 Wednesday, November 14, 2001
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Pawhuska Journal-Capital (Pawhuska, Okla.), Vol. 91, No. 59, Ed. 1 Wednesday, November 14, 2001
Weekly newspaper from Pawhuska, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 14, 2001
Creator:
Gann, Sherry
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Penny Record (Bridge City, Tex.), Vol. 42, No. 17, Ed. 1 Wednesday, November 14, 2001
Weekly newspaper from Bridge City, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2001
Creator:
Childress, Jerry
Object Type:
Newspaper
System:
The Portal to Texas History
Phase Transformation Hysteresis in a Plutonium Alloy System: Modeling the Resistivity during the Transformation
We have induced, measured, and modeled the {delta}-{alpha}' martensitic transformation in a Pu-Ga alloy by a resistivity technique on a 2.8-mm diameter disk sample. Our measurements of the resistance by a 4-probe technique were consistent with the expected resistance obtained from a finite element analysis of the 4-point measurement of resistivity in our round disk configuration. Analysis by finite element methods of the postulated configuration of {alpha}' particles within model {delta} grains suggests that a considerable anisotropy in the resistivity may be obtained depending on the arrangement of the {alpha}' lens shaped particles within the grains. The resistivity of these grains departs from the series resistance model and can lead to significant errors in the predicted amount of the {alpha}' phase present in the microstructure. An underestimation of the amount of {alpha}' in the sample by 15%, or more, appears to be possible.
Date:
November 14, 2001
Creator:
Haslam, J. J.; Wall, M. A.; Johnson, D. L.; Mayhall, D. J. & Schwartz, A. J.
Object Type:
Article
System:
The UNT Digital Library
Quantitative Microanalysis with high Spatial Resolution: Application of FEG-DTEM XEDS Microanalysis to the Characterization of Complex Microstructures in Irradiated Low Alloy Steet
To assist in the characterization of microstructural changes associated with irradiation damage in low alloy steels, the technique of quantitative x-ray mapping using a field emission gun scanning transmission electron microscope (FEG-STEM) equipped with an x-ray energy Dispersive spectrometer (XEDS) has been employed. Quantitative XEDS microanalyses of the matrix and grain boundaries of irradiated specimens have been compared with previous quantitative analyses obtained using 3D-Atom Probe Field-Ion Microscopy (3D-APFIM). In addition, the FEG-STEM XEDS maps obtained from the irradiated steel have revealed the presence of 2 to 3 nm Ni-enriched 'precipitates' in the matrix, which had previously been detected using 3D-APFIM. These quantitative FEG-STEM XEDS results represent the first direct and independent microchemical corroboration of the 3D-APFIM results showing ultra-fine irradiation-induced hardening features in low alloy steel.
Date:
November 14, 2001
Creator:
Williams, D.B., Watanabe, M. and Burke, M.G.
Object Type:
Report
System:
The UNT Digital Library
The Rattler (San Antonio, Tex.), Vol. 88, No. 5, Ed. 1 Wednesday, November 14, 2001
Biweekly student newspaper from St. Mary's University in San Antonio, Texas that includes campus news along with advertising.
Date:
November 14, 2001
Creator:
St. Mary's University (San Antonio, Tex.)
Object Type:
Newspaper
System:
The Portal to Texas History
Research and Development Funding: Fiscal Year 2002
None
Date:
November 14, 2001
Creator:
Moteff, John D.
Object Type:
Report
System:
The UNT Digital Library
The Role of cavitation on Initiating Mercury-Steel Wetting
In accelerator-driven neutron sources such as the Spallation Neutron Source (SNS) with powers in the 2 MW range (time-averaged), the interaction of the energetic proton beam with the mercury target can lead to very high heating rates in the target. Although the resulting temperature rise is relatively small (a few degrees C), the rate of temperature rise is enormous (-10{sup 7} C/s) during the very brief beam pulse (-0.58 {micro}s). The resulting thermal-shock induced compression of the mercury leads to the production of large amplitude pressure waves in the mercury that interact with the walls of the mercury target and the bulk flow field. Understanding and predicting propagation of pressure pulses in the target are considered critical for establishing the feasibility of constructing and safely operating such devices. Safety-related operational concerns exist in two main areas, viz., (1) possible target enclosure failure from impact of thermal shocks on the wall due to its direct heating from the proton beam and the loads transferred from the mercury compression waves, and (2) impact of the compression-cum-rarefaction wave-induced effects such as cavitation bubble emanation and their impact on mercury-steel interfacial phenomena (such as wetting, mass transfer and erosion).
Date:
November 14, 2001
Creator:
Taleyarkhan, R.P.
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 87, No. 53, Ed. 1 Wednesday, November 14, 2001
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 14, 2001
Creator:
Quinnelly, Lorrie J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 9, Ed. 1 Wednesday, November 14, 2001
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
November 14, 2001
Creator:
Dow, M. Gene & Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
A spatial time series framework for modeling daily precipitationat regional scales
In this paper, a framework for stochastic spatiotemporal modeling of daily precipitation in a hindcast mode is presented. Observed precipitation levels in space and time are modeled as a joint realization of a collection of space-indexed time series, one for each spatial location. Time series model parameters are spatially varying, thus capturing space-time interactions. Stochastic simulation, i.e., the procedure of generating alternative precipitation realizations (synthetic fields) over the space-time domain of interest (Deutsch and Journel, 1998), is employed for ensemble prediction. The simulated daily precipitation fields reproduce a data-based histogram and spatiotemporal covariance model, and identify the measured precipitation values at the rain gauges (conditional simulation). Such synthetic precipitation fields can be used in a Monte Carlo framework for risk analysis studies in hydrologic impact assessment investigations.
Date:
November 14, 2001
Creator:
Kyriakidis, Phaedon C.; Miller, Norman L. & Kim, Jinwon
Object Type:
Article
System:
The UNT Digital Library
The University News (Irving, Tex.), Vol. [26], No. [10], Ed. 1 Wednesday, November 14, 2001
Weekly student newspaper from the University of Dallas in Irving, Texas that includes campus news and commentaries along with advertising.
Date:
November 14, 2001
Creator:
Watson, Thomas & Danaher, Julie
Object Type:
Newspaper
System:
The Portal to Texas History
University Press (Beaumont, Tex.), Vol. 78, No. 21, Ed. 1 Wednesday, November 14, 2001
Semiweekly newspaper from Lamar University in Beaumont, Texas that includes local, national, and campus news along with advertising.
Date:
November 14, 2001
Creator:
Jordan, Kasey A.
Object Type:
Newspaper
System:
The Portal to Texas History
VARIABLE SPEED INTEGRATED INTELLIGENT HVAC BLOWER
This comprehensive topical report discusses the key findings in the development of a intelligent integrated blower for HVAC applications. The benefits of rearward inclined blades over that of traditional forward inclined blades is well documented and a prototype blower design is presented. A comparison of the proposed blower to that of three typical units from the industry is presented. The design of the blower housing is also addressed and the impact of size limitations on static efficiency is discussed. Issues of air flow controllability in the rearward inclined blower is addressed and a solution to this problem is proposed. Several motor design options are discussed including inside-out radial flux designs and novel axial flux designs, all are focused on the various blower needs. The control of the motor-blower and airflow through the use of a high density inverter stage and modern digital signal processor is presented. The key technical challenges of the approach are discussed. The use of the motor as a sensor in the larger heating/ventilating system is also discussed. Diagnostic results for both the motor itself and the blower system are presented.
Date:
November 14, 2001
Creator:
Wang, Shixiao; Wiegman, Herman; Wu, Wilson; Down, John; Iorio, Luana; Devarajan, Asha et al.
Object Type:
Report
System:
The UNT Digital Library
VÄ›stnÃk (Temple, Tex.), Vol. 89, No. 44, Ed. 1 Wednesday, November 14, 2001
Weekly Czech and English language newspaper from Temple, Texas published as the official organ of the Slavonic Benevolent Order of the State of Texas that includes news of interest to members along with advertising.
Date:
November 14, 2001
Creator:
Vanicek, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
[Wedding day of Doug and Marsha Peagram]
Video footage from The Black Academy of Arts and Letters recorded during the wedding day of Doug and Marsha Peagram which was held in a church and reception hall. The VHS footage shows the marriage ceremony with Marsha in a long trained wedding dress accompanied by flower girls. The couple exchanges vows and the footage switches to the reception at the 32:21 minute mark.
Date:
November 14, 2001
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
Yoakum Herald-Times (Yoakum, Tex.), Vol. 109, No. 46, Ed. 1 Wednesday, November 14, 2001
Weekly newspaper from Yoakum, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2001
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 102, No. 193, Ed. 1 Sunday, October 14, 2001
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 14, 2001
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 110, No. 83, Ed. 1 Sunday, October 14, 2001
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
October 14, 2001
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 322, Ed. 1 Sunday, October 14, 2001
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
October 14, 2001
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, October 14, 2001
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 14, 2001
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Lally Family Videos, No. 24 - A Family trip to the Amusement Park]
This home movie excerpt documents a family trip to King's Island amusement park and a rainbow seen from the car window.
Date:
October 14, 2001
Creator:
Lally
Object Type:
Video
System:
The Portal to Texas History