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Advances in LIGA-Based Post-Mold Fabrication
The establishment of a process to allow planarization of deep x-ray lithography based microfabncated metal components via diamond lapping has enabled examination of three additional microfabrication issues. The areas of improvement that are discussed include materials, microassembly and packaging, and multilevel fabrication. New materials work has centered on magnetic materials including precision micromagnets and surface treatments of electrodeposited materials. Assembly and packaging has been aided by deep silicon etch processing and the use of conventional precision milling equipment combined with press-tit assembly. Diffhsion bonding is shown to be a particularly important approach to achieving multilevel metal mechanisms and furthermore shows promise for achieving batch assembled and packaged high aspect-ratio metal micromechanics,
Date:
October 21, 1998
Creator:
Christenson, T.R.
Object Type:
Article
System:
The UNT Digital Library
Agricultural Exports: Technical Barriers to Trade
Technical barriers to trade (TBTs) are widely divergent measures that countries use to regulate rnarkets, protect their consumers, and preserve natural resources, but which can also discriminate against imports in favor of domestic products. Most TBTs in agriculture are sanitary and phytosanitary (SPS) measures designed to protect humans, animals, and plants from contaminants, diseases, and pests. In the wake of new trade agreements aimed at reducing tariffs, import quotas, and other trade barriers, TBTs have become more prominent concerns for agricultural exporters and policymakers.
Date:
October 21, 1997
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 118, No. 20, Ed. 1 Thursday, October 21, 1993
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
October 21, 1993
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 124, No. 21, Ed. 1 Thursday, October 21, 1999
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
October 21, 1999
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 21, No. 84, Ed. 1 Sunday, October 21, 1990
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 1990
Creator:
Hutchison, Mark
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 23, No. 84, Ed. 1 Wednesday, October 21, 1992
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 1992
Creator:
Epperson, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 90, No. 189, Ed. 1 Sunday, October 21, 1990
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1990
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 91, No. 187, Ed. 1 Monday, October 21, 1991
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1991
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 92, No. 190, Ed. 1 Wednesday, October 21, 1992
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1992
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 93, No. 190, Ed. 1 Thursday, October 21, 1993
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1993
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 94, No. 190, Ed. 1 Friday, October 21, 1994
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1994
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 96, No. 189, Ed. 1 Monday, October 21, 1996
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1996
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 98, No. 185, Ed. 1 Tuesday, October 21, 1997
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1997
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 188, Ed. 1 Wednesday, October 21, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 183, Ed. 1 Thursday, October 21, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 21, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, October 21, 1992
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, October 21, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Sun (Alvin, Tex.), Vol. 106, No. 22, Ed. 1 Monday, October 21, 1996
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 1996
Creator:
Schwind, Jim & Chionsini, Brandi
Object Type:
Newspaper
System:
The Portal to Texas History
An analysis of the impact of having uranium dioxide mixed in with plutonium dioxide
An assessment was performed to show the impact on airborne release fraction, respirable fraction, dose conversion factor and dose consequences of postulated accidents at the Plutonium Finishing Plant involving uranium dioxide rather than plutonium dioxide.
Date:
October 21, 1998
Creator:
MARUSICH, R.M.
Object Type:
Report
System:
The UNT Digital Library
Analytic formulation for the ac electrical conductivity in two- temperature, strongly coupled, overdense plasma: FORTRAN subroutine
A FORTRAN subroutine for the calculation of the ac electrical conductivity in two-temperature, strongly coupled, overdense plasma is presented. The routine is the result of a model calculation based on classical transport theory with application to plasmas created by the interaction of short pulse lasers and solids. The formulation is analytic and the routine is self-contained.
Date:
October 21, 1993
Creator:
Cauble, R. & Rozmus, W.
Object Type:
Report
System:
The UNT Digital Library
Analytical Study of High Concentration PCB Paint at the Heavy Water Components Test Reactor
This report provides results of an analytical study of high concentration PCB paint in a shutdown nuclear test reactor located at the US Department of Energy's Savannah River Site (SRS). The study was designed to obtain data relevant for an evaluation of potential hazards associated with the use of and exposure to such paints.
Date:
October 21, 1998
Creator:
Lowry, N.J.
Object Type:
Report
System:
The UNT Digital Library
Applications of Micellar Enzymology to Clean Coal Technology
This project is designed to develop methods for precombustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid (Figure 1). Dibenzothiophene (DBT) and ethylphenylsulfide (EPS) are serving as models of organic sulfur-containing components of coal in initial studies. A goal of this project is to define a reverse micelle system that optimizes the catalytic activity of enzymes toward desulfurization of model compounds and ultimately coal samples. 12 refs., 2 figs., 7 tabs.
Date:
October 21, 1991
Creator:
Walsh, Carol T.
Object Type:
Report
System:
The UNT Digital Library
Applications of RESRAD family of computer codes to sites contaminated with radioactive residues.
The RESIL4D family of computer codes was developed to provide a scientifically defensible answer to the question ''How clean is clean?'' and to provide useful tools for evaluating human health risk at sites contaminated with radioactive residues. The RESRAD codes include (1) RESRAD for soil contaminated with radionuclides; (2) RESRAD-BUILD for buildings contaminated with radionuclides; (3) RESRAD-CHEM for soil contaminated with hazardous chemicals; (4) RESRAD-BASELINE for baseline risk assessment with measured media concentrations of both radionuclides and chemicals; (5) RESRAD-ECORISK for ecological risk assessment; (6) RESRAD-RECYCLE for recycle and reuse of radiologically contaminated metals and equipment; and (7) RESRAD-OFFSITE for off-site receptor radiological dose assessment. Four of these seven codes (RESRAD, RESRAD-BUILD, RESRAD-RECYCLE, and RESRAD-OFFSITE) also have uncertainty analysis capabilities that allow the user to input distributions of parameters. RESRAD has been widely used in the United States and abroad and approved by many federal and state agencies. Experience has shown that the RESRAD codes are useful tools for evaluating sites contaminated with radioactive residues. The use of RESRAD codes has resulted in significant savings in cleanup cost. Analysis of 19 site-specific uranium guidelines is discussed in the paper.
Date:
October 21, 1999
Creator:
Yu, C.; Kamboj, S.; Cheng, J. J.; LePoire, D.; Gnanapragasam, E.; Zielen, A. et al.
Object Type:
Article
System:
The UNT Digital Library
The Aransas Pass Progress (Aransas Pass, Tex.), Vol. 84, No. 35, Ed. 1 Wednesday, October 21, 1992
Weekly newspaper from Aransas Pass, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 1992
Creator:
Cole, Mary
Object Type:
Newspaper
System:
The Portal to Texas History