Partner
UNT Libraries Government Documents Department
313
Oklahoma Historical Society
68
UNT Libraries Special Collections
29
Sterling Municipal Library
11
Carl Albert Congressional Research and Studies Center
7
Alvin Community College
6
San Antonio Public Library
6
Sanger Public Library
5
UNT Libraries
5
UT San Antonio Libraries Special Collections
5
58 More
Collection
Office of Scientific & Technical Information Technical Reports
227
Texas Digital Newspaper Program
127
Oklahoma Digital Newspaper Program
77
Government Accountability Office Reports
62
Tocker Foundation Grant
60
Congressional Research Service Reports
19
Chickasha Newspaper Collection
12
The Gayly Oklahoman
12
Altus Times-Democrat
11
The Baytown Sun
11
97 More
Degree Department
Country
Year
Month
Day
Language
Results:
1 - 24 of
571
next
2nd Generation PFBC Systems R&D Phase 2 AND Phase 3
This report is descriptive journey of the 2nd Generation PFBC Systems R&D Phase 2 AND Phase 3.
Date:
December 15, 1999
Creator:
Robertson, Archie
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 100, No. 231, Ed. 1 Wednesday, December 15, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, December 15, 1999
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
December 15, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Battlefield Automation: Army's Restructured Land Warrior Program Needs More Oversight
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO assessed the Army's implementation of the Land Warrior system, focusing on: (1) the status of the system; (2) whether the level of monitoring and oversight is sufficient based on projected Land Warrior development costs; (3) how the Army is ensuring that Land Warrior will be able to operate with other digitized battlefield systems; and (4) whether technical and human factor problems still need resolution."
Date:
December 15, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 39, Ed. 1 Wednesday, December 15, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 15, 1999
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Braze Process Optimization Involving Conventional Metal/Ceramic Brazing with 50Au-50Cu Alloy
Numerous process variables can influence the robustness of conventional metal/ceramic brazing processes. Experience with brazing of hermetic vacuum components has identified the following parameters as influencing the outcome of hydrogen furnace brazed Kovar{trademark} to metallized alumina braze joints: (a) Mo-Mn metallization thickness, sinter fire temperature and porosity (b) Nil plate purity, thickness, and sinter firing conditions (c) peak process temperature, time above liquidus and (d) braze alloy washer thickness. ASTM F19 tensile buttons are being used to investigate the above parameters. The F19 geometry permits determination of both joint hermeticity and tensile strength. This presentation will focus on important lessons learned from the tensile button study: (A) the position of the Kovar{trademark} interlayer can influence the joint tensile strength achieved--namely, off-center interlayers can lead to residual stress development in the ceramic and degrade tensile strength values. Finite element analysis has been used to demonstrate the expected magnitude in strength degradation as a function of misalignment. (B) Time above liquidus (TAL) and peak temperature can influence the strength and alloying level of the resulting braze joint. Excessive TAL or peak temperatures can lead to overbraze conditions where all of the Ni plate is dissolved. (C) Metallize sinter fire processes can influence …
Date:
December 15, 1999
Creator:
MALIZIA JR.,LOUIS A.; MEREDITH,KEITH W.; APPEL,DANIEL B.; MONROE,SAUNDRA L.; BURCHETT,STEVEN N. & STEPHENS JR.,JOHN J.
Object Type:
Article
System:
The UNT Digital Library
Cash and Noncash Benefits for Persons With Limited Income: Eligibility Rules, Recipient and Expenditure Data, FY1996-FY1998
This report provides basic eligibility rules, recipient numbers, and FY1996-FY1998 expenditure data for 80 programs that have provided cash or non-cash benefits to low-income persons.
Date:
December 15, 1999
Creator:
Burke, Vee
Object Type:
Report
System:
The UNT Digital Library
Cesium removal from Savannah River Site radioactive waste using crystalline silicotitanate (IONSIV(R) IE-911)
This study measured the ability of crystalline silicotitanate to remove cesium from Savannah River Site radioactive waste.
Date:
December 15, 1999
Creator:
Walker, D. D.
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 104, No. 100, Ed. 1 Wednesday, December 15, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 15, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
[Completion of the dog toxicity project at the University of Utah: statistical comparison]
Radium (Ra) toxicity in dogs is a cornerstone for the evaluation of plutonium (Pu) toxicity, as it provides a possible link to Pu toxicity in humans. Survival regression models with covariates were used to estimate the risk to survival and the frequency and latency of bone tumor development. It appears for Ra that dose-rate is a more significant contributor to non-survival and bone tumors than is skeletal dose.
Date:
December 15, 1999
Creator:
Bruenger, F. W. & Lloyd, R. D.
Object Type:
Report
System:
The UNT Digital Library
[Curriculum Discussion Reminder: Email Snapshot]
A snapshot of a reminder email nudging discussions on curriculum guidelines and reiterating the proposal for a meeting to delve deeper into the subject matter.
Date:
December 15, 1999, 4:39 p.m.
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Customs Service Modernization: Impact of New Trade Compliance Strategy Needs to Be Assessed
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Custom Service's Modernization efforts, focusing on: (1) the status of Customs' implementation of the informed compliance strategy; and (2) whether trade compliance under the new program had improved."
Date:
December 15, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Effects of oxygen and catalyst on tetraphenylborate decomposition rate
Previous studies indicate that palladium catalyzes rapid decomposition of alkaline tetraphenylborate slurries. Oxygen inhibits the reaction at low temperature (25 C), presumably by preventing activation of the catalyst. The present study investigated oxygen's inhibiting effectiveness at higher temperature (45 C) and catalyst concentrations.
Date:
December 15, 1999
Creator:
Walker, D. D.
Object Type:
Report
System:
The UNT Digital Library
Effects of processing conditions and ambient environment on the microstructure and fracture strength of copper/niobium/copper interlayer joints for alumina
Partial transient liquid phase (PTLP) bonding is a technique which can be used to join ceramics with metals and is used to form niobium-based joints for alumina. The principal advantage to PTLP bonding is that it enables refractory joints to be fabricated at temperatures below those typically required by solid state diffusion bonding. A thorough review of the important parameters (chemical compatibility, thermal expansion match, sufficient wettability of the liquid phase on the solid phases) in choosing a joining material for ceramics by the PTLP method is provided. As in conventional PTLP joining, the current study uses thin (=3 (mu)m) copper layers sandwiched between the alumina (bulk) and niobium (127 (mu)m). However, unlike the case of copper/nickel/copper obium is limited. Consequently, the copper is not entirely dissolved in the process, resulting in a two phase (copper-rich and niobium-rich phases) microstructure. Different processing conditions (temperature and applied load) result in different morphologies of the copper-rich and niobium-rich phases at the interface. These different microstructures exhibit distinct strength characteristics. Extended annealing of as-processed joints can influence the strengths differently depending on the ambient partial oxygen pressure at the annealing temperature. The focus of this work is to correlate processing conditions, microstructure, and …
Date:
December 15, 1999
Creator:
Marks, Robert Alan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, December 15, 1999
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1999
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Floodplain/wetlands assessment for the borrow areas for the restoration of the Weldon Spring Quarry, Weldon Spring Site, Missouri
The US Department of Energy proposes to develop two soil borrow areas, 8.1 ha (20 acres) and 1.3 ha (3.1 acres) in size, near the Weldon Spring Site, Weldon Spring, Missouri. One wetland and portions of four others would be excavated during development of the borrow areas. These wetlands include palustrine emergent and palustrine forested wetland types and total 0.98 ha (2.4 acres). Hydrology and biotic communities may be altered in several wetlands located near the borrow areas. No long-term adverse impacts to floodplains are expected.
Date:
December 15, 1999
Creator:
Van Lonkhuyzen, R.A.
Object Type:
Report
System:
The UNT Digital Library
Floodplain/wetlands assessment for the interceptor trench field study near the Weldon Spring Quarry, Weldon Spring Site, Missouri
The US Department of Energy proposes to construct a groundwater interceptor trench near the Weldon Spring Quarry at the Weldon Spring Site in Missouri. The trench would be located near two palustrine wetland areas. Impacts to wetland hydrology and biotic communities are expected to be negligible. No long-term adverse impacts to floodplains are expected.
Date:
December 15, 1999
Creator:
Van Lonkhuyzen, R.A.
Object Type:
Report
System:
The UNT Digital Library
Food and Drug Administration Facility: Requirements for Building on a Floodplain Met
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the construction of the Food and Drug Administration (FDA) facility for its Center for Food Safety and Applied Nutrition (CFSAN) in College Park, Maryland, focusing on: (1) the General Services Administration's (GSA) authority to construct a new facility for FDA in College Park; (2) whether the requirements for building on a floodplain had been met; and (3) the planned placement of computers in the basement of the new building, specifically whether; (a) steps had been taken or will be taken to mitigate the risk of damage from water entering the basement of the building, and (b) CFSAN staff were involved in the decision to place the computer operations in the basement."
Date:
December 15, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Fully confined photonic band gap and guided modes in a two-dimensional photonic crystal slab
A new two-dimensional photonic crystal (2D PC) slab structure was created with a full three-dimensional light confinement. Guided modes with broad bandwidth and high transmission within the band gap are also observed. As an optical analog to electronic crystals, PC promises a revolution in the photonic world similar to the electronic revolution created by the electronic band gap engineering in semiconductor. 2D PC has an advantage of being easier to fabricate at optical wavelength ({lambda}) comparing with 3D PC. However, the light leakage in the vertical direction has been the main problem for using 2D PC in opto-electronic application. In this study, the authors solve this problem by combining traditional 2D PC with strong vertical index guiding between the waveguide layer (GaAs) and the cladding layer (Al{sub x}O{sub y}). A set of triangular lattice holes 2D PC's were fabricated with lattice constant a=460nm, hole diameter (d=0.6a) and waveguide layer thickness (t = 0.5a). Those parameters were chosen to maximize the TE photonic band gap (PBG) around {lambda} = 1.55{micro}m. The depth of etched holes is {approximately}0.6{micro}m and the 2{micro}m thick Al{sub x}O{sub y} cladding layer is obtained by thermal oxidation of Al{sub 0.9}Ga{sub 0.1}As. PC waveguides were also created by …
Date:
December 15, 1999
Creator:
Chow, K.C.; Lin, S.Y.; Johnson, S.G.; Villeneuve, P.R. & Joannopoulos, J.D.
Object Type:
Article
System:
The UNT Digital Library
The Gayly Oklahoman (Oklahoma City, Okla.), Vol. 17, No. 24, Ed. 1 Wednesday, December 15, 1999
Semi-monthly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
December 15, 1999
Creator:
Hawkins, Don
Object Type:
Newspaper
System:
The UNT Digital Library
High Frequency Mechanical Pyroshock Simulations for Payload Systems
Sandia National Laboratories (SNL) designs mechanical systems with components that must survive high frequency shock environments including pyrotechnic shock. These environments have not been simulated very well in the past at the payload system level because of weight limitations of traditional pyroshock mechanical simulations using resonant beams and plates. A new concept utilizing tuned resonators attached to the payload system and driven with the impact of an airgun projectile allow these simulations to be performed in the laboratory with high precision and repeatability without the use of explosives. A tuned resonator has been designed and constructed for a particular payload system. Comparison of laboratory responses with measurements made at the component locations during actual pyrotechnic events show excellent agreement for a bandwidth of DC to 4 kHz. The bases of comparison are shock spectra. This simple concept applies the mechanical pyroshock simulation simultaneously to all components with the correct boundary conditions in the payload system and is a considerable improvement over previous experimental techniques and simulations.
Date:
December 15, 1999
Creator:
Bateman, Vesta I.; Brown, Frederick A.; Cap, Jerome S. & Nusser, Michael A.
Object Type:
Article
System:
The UNT Digital Library
Hog Prices: Questions and Answers
This report discusses price changes in the pork industry. In late 1998, the lowest hog prices in decades created a crisis in the pork industry and prompted the U.S. Department of Agriculture (USDA) and Congress to take a series of actions to assist producers, including direct cash payments, and the purchase of extra pork products to reduce market supplies. The industry sought additional aid as low prices persisted into 1999.
Date:
December 15, 1999
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Illustrated Paperboy (Cleveland, Tex.), Vol. 7, No. 38, Ed. 1 Wednesday, December 15, 1999
Weekly newspaper from Cleveland, Texas that includes local, county, and state news along with extensive advertising.
Date:
December 15, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Initial Screening of Thermochemical Water-Splitting Cycles for High Efficiency Generation of Hydrogen Fuels Using Nuclear Power
OAK B188 Initial Screening of Thermochemical Water-Splitting Cycles for High Efficiency Generation of Hydrogen Fuels Using Nuclear Power There is currently no large scale, cost-effective, environmentally attractive hydrogen production process, nor is such a process available for commercialization. Hydrogen is a promising energy carrier, which potentially could replace the fossil fuels used in the transportation sector of our economy. Fossil fuels are polluting and carbon dioxide emissions from their combustion are thought to be responsible for global warming. The purpose of this work is to determine the potential for efficient, cost-effective, large-scale production of hydrogen utilizing high temperature heat from an advanced nuclear power station. Almost 800 literature references were located which pertain to thermochemical production of hydrogen from water and over 100 thermochemical watersplitting cycles were examined. Using defined criteria and quantifiable metrics, 25 cycles have been selected for more detailed study.
Date:
December 15, 1999
Creator:
Brown, L. C.; Funk, J. F. & Showalter, S. K.
Object Type:
Report
System:
The UNT Digital Library