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Development of novel separation techniques for biological samples in capillary electrophoresis (open access)

Development of novel separation techniques for biological samples in capillary electrophoresis

This dissertation includes three different topics: general introduction of capillary electrophoresis (CE); gradient in CE and CE in biological separations; and capillary gel electrophoresis (CGE) for DNA separation. Factors such as temperature, viscosity, pH, and the surface of capillary walls affecting the separation performance are demonstrated. A pH gradient between 3.0 and 5.2 is useful to improve the resolution among eight different organic acids. A flow gradient due to the change in the concentration of surfactant, which is able to coat to the capillary wall to change the flow rate and its direction, is also shown as a good way to improve the resolution for organic compounds. A temperature gradient caused by joule heat is shown by voltage programming to enhance the resolution and shorten the separation time for several phenolic compounds. The author also shows that self-regulating dynamic control of electroosmotic flow in CE by simply running separation in different concentrations of surfactant has less matrix effect on the separation performance. One of the most important demonstrations in this dissertation is that the author proposes on-column reaction which gives several advantages including the use of a small amount of sample, low risk of contamination, and time saving and kinetic …
Date: July 27, 1994
Creator: Chang, H. T.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Wylie News (Wylie, Tex.), Vol. 47, No. 47, Ed. 1 Wednesday, April 27, 1994 (open access)

The Wylie News (Wylie, Tex.), Vol. 47, No. 47, Ed. 1 Wednesday, April 27, 1994

Weekly newspaper from Wylie, Texas that includes local, state, and national news along with advertising.
Date: April 27, 1994
Creator: Cook, Margaret
Object Type: Newspaper
System: The Portal to Texas History
The Wylie News (Wylie, Tex.), Vol. 48, No. 8, Ed. 1 Wednesday, July 27, 1994 (open access)

The Wylie News (Wylie, Tex.), Vol. 48, No. 8, Ed. 1 Wednesday, July 27, 1994

Weekly newspaper from Wylie, Texas that includes local, state, and national news along with advertising.
Date: July 27, 1994
Creator: Cook, Margaret
Object Type: Newspaper
System: The Portal to Texas History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 12, Ed. 1 Sunday, March 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 12, Ed. 1 Sunday, March 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: March 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 39, Ed. 1 Wednesday, April 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 39, Ed. 1 Wednesday, April 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: April 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 65, Ed. 1 Friday, May 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 65, Ed. 1 Friday, May 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: May 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 91, Ed. 1 Monday, June 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 91, Ed. 1 Monday, June 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: June 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 117, Ed. 1 Wednesday, July 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 117, Ed. 1 Wednesday, July 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: July 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 170, Ed. 1 Tuesday, September 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 170, Ed. 1 Tuesday, September 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: September 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 196, Ed. 1 Thursday, October 27, 1994 (open access)

Chickasha Daily Express (Chickasha, Okla.), Vol. 104, No. 196, Ed. 1 Thursday, October 27, 1994

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: October 27, 1994
Creator: Cranke, Jay
Object Type: Newspaper
System: The Gateway to Oklahoma History
Statistical characterization report for single-shell Tank 241-S-104 (open access)

Statistical characterization report for single-shell Tank 241-S-104

This report contains the results of the statistical analysis of data from three core samples obtained from single-shell Tank 241-S-104 (S-104). Section 2.0 contains a description of the core samples and the chemical analyses performed on the core samples. Section 3.0 contains mean concentration estimates and associated 95% confidence intervals (CIs) on the mean for each of the analytes found in the core samples. Section 4.0 contains estimates of the spatial variability (variability between cores) and estimates of the analytical variability from the core composite data. Two types of analytical variability were estimated from the core composite data: (1) sample composite variability (variability between composite samples within the same core) and (2) analytical measurement variability (variability between the primary and duplicate analyses within each core composite sample). Estimates of the analytical measurement variability were used as the reference value to test the significance of the spatial and sample composite variability. Spatial variability was significantly different from zero for 22 out of 63 analytes. The sample composite variance was significantly different from zero for 20 out of the 63 analytes.
Date: September 27, 1994
Creator: Cromar, R. D.; Wilmarth, S. R. & Jensen, L.
Object Type: Report
System: The UNT Digital Library
Japanese and U.S. Economic Involvement in Asia and the Pacific: Comparative Data and Analysis (open access)

Japanese and U.S. Economic Involvement in Asia and the Pacific: Comparative Data and Analysis

In a world in which economic and trade performance are fast gaining acceptance as important components of national power and well being, Congress has become increasingly interested in the comparative success of U.S. business in the vast, rapidly growing Asia-Pacific region. For the most part, Congress has tended to view Japan as the main competitor of the United States in Asian markets and the standard against which U.S. success is measured. The stakes for the United States are considerable. Exclusive of Japan, the Asia-Pacific region accounted for $ 92 billion in U.S. exports in 1993 and $ 138 billion in imports, or about 20 percent of total U.S. exports and 24 percent of U.S. global imports. A number of projections indicate that Asia will account for the largest share of world trade growth in the next decade. Japan's growing economic presence has been accompanied by a relative increase in its political influence vis-a-vis that of the United States, a factor of considerable long term significance for U.S. interests, and it would appear the availability of alternative Asian markets has strengthened Japan's resistance to U.S. trade demands.
Date: September 27, 1994
Creator: Cronin, Richard P.
Object Type: Report
System: The UNT Digital Library
[Dallas Morning News 'Achievers', December 27, 1994] (open access)

[Dallas Morning News 'Achievers', December 27, 1994]

A clipping from the 'Achievers' section of the December 27, 1994 Dallas Morning News. Featured are Dr. R. William McCarter, a UNT professor and co-director of the NTIEVA program, UNT professors William Brookshire and Michael Sayler, and writer Emily B. Thornbury.
Date: December 27, 1994
Creator: Dallas Morning News
Object Type: Clipping
System: The UNT Digital Library
CERES progress report: Phases 1 and 2 (open access)

CERES progress report: Phases 1 and 2

The CERES project represents a long-term commitment of LLNL`s Global Climate Research Division to the EPA. The goal is to build an Earth System Model (ESM) with the ability in the near future to assist EPA in carrying out its responsibilities in the environmental policy and assessment arena, with particular emphasis on the terrestrial ecosystem components of the Earth system. There are two complementary aspects of the CERES development plan. The first is to provide a computational framework and modeling infrastructure for ESM development. The goal is to create an ``open architecture`` enabling submodels from different research groups studying terrestrial ecosystems to become part of a fully-coupled model of the Earth`s climate system. The second goal is to contribute fundamentally to understanding of the terrestrial component of the Earth system by developing advanced models. During this first phase of the CERES project, these two activities have been somewhat separate; the software engineering and framework building activity having been done in parallel with terrestrial model development. These two activities are merging as the framework becomes more mature, with robust software tools, and with a growing complement of tuned and benchmarked submodels and as the ecosystem models become fully incorporated into the …
Date: May 27, 1994
Creator: Dannevik, W. P.; Ambrosiano, J.; Kercher, J.; Penner, J. E. & Emanuel, W.
Object Type: Report
System: The UNT Digital Library
Maintenance of the Coal Sample Bank and Database. Quarterly technical progress report, December 29, 1993--March 31, 1994 (open access)

Maintenance of the Coal Sample Bank and Database. Quarterly technical progress report, December 29, 1993--March 31, 1994

This five year project is intended to ensure the availability of well-characterized, high-quality coal samples for public and private coal research. It continues support of the DOE Coal Sample Bank and Database at The Pennsylvania State University. Thirty coal samples will be collected, processed, packaged, and analyzed, and a resulting database will be maintained. These samples and data, as well as 26 samples collected under previous contracts, will be distributed to DOE contractors and others performing coal research. Samples will be chosen to maintain a sample bank of 56 coals representing the major US coal fields and a variety of coal ranks and compositions. In addition to standard analyses, liquefaction tests and organic geochemical analyses will be performed. The samples will be stored to minimize deterioration, and will be monitored annually by proximate, sulfur forms, and gaseous oxygen analysis to evaluate their condition. These samples will be used for additional research on the influence of changes in surface chemistry on surface properties, the influence of sample deterioration on liquefaction properties, and the mechanisms of coal oxidation.
Date: May 27, 1994
Creator: Davis, A. & Glick, D. C.
Object Type: Report
System: The UNT Digital Library
A computerized welder qualification record and tracking system (open access)

A computerized welder qualification record and tracking system

Accurately tracking welder qualification and assigning welders to jobs for which they are qualified is becoming more important as customers increasingly demand improved quality and conformance to industry standards. A computerized welder qualification records and tracking system (WPQ) was developed at the Oak Ridge Y-12 Plant to assist the user in this process. The system enables the user to consistently generate welder qualification records with minimal effort and increased accuracy, relate the welder qualification limits with the limits of the welding procedure specification, generate a printout which reports essential information for selecting qualified welders, and provide a method for updating welders based on process usage as permitted by the codes. Codes addressed by the system include American Society of Mechanical Engineers (ASME) Section IX, American Welding Society (AWS) D1.1, AWS D1.3 and AWS D9.1
Date: April 27, 1994
Creator: Davis, J.N.; Etzler, D.J.; Fletcher, D.R.; Jessee, R.M.; Wilson, L.O.; Evans, J.C. et al.
Object Type: Article
System: The UNT Digital Library
SUNRAYCE 95: Working safely with lead-acid batteries and photovoltaic power systems (open access)

SUNRAYCE 95: Working safely with lead-acid batteries and photovoltaic power systems

This document is a power system and battery safety handbook for participants in the SUNRAYCE 95 solar powered electric vehicle program. The topics of the handbook include batteries, photovoltaic modules, safety equipment needed for working with sulfuric acid electrolyte and batteries, battery transport, accident response, battery recharging and ventilation, electrical risks on-board vehicle, external electrical risks, electrical risk management strategies, and general maintenance including troubleshooting, hydrometer check and voltmeter check.
Date: May 27, 1994
Creator: DePhillips, M. P.; Moskowitz, P. D. & Fthenakis, V. M.
Object Type: Report
System: The UNT Digital Library
Fabrication options for depleted uranium components in shielded containers (open access)

Fabrication options for depleted uranium components in shielded containers

Depleted uranium (DU) is an attractive material for the gamma-shielding components in containers designed for the storage, transport, and disposal of high-level radioactive wastes or spent nuclear fuel. The size and weight of these components present fabrication challenges. A broad range of technical expertise, capabilities, and facilities for uranium manufacturing and technology development exist at the Department of Energy laboratories and production facilities and within commercial industry. Several cast and wrought processes are available to fabricate the DU components. Integration of the DU fabrication capabilities and physical limitations for handling the DU components into the early design phase will ensure a fabricable product.
Date: January 27, 1994
Creator: Derrington, S. B.; Thompson, J. E. & Coates, C. W.
Object Type: Article
System: The UNT Digital Library
Overheads, Safety Analysis and Engineering FY 1995 Site Support Program Plan WBS 6.3.5 (open access)

Overheads, Safety Analysis and Engineering FY 1995 Site Support Program Plan WBS 6.3.5

The Safety Analysis & Engineering (SA&E) department provides core competency for safety analysis and risk documentation that supports achievement of the goals and mission as described in the Hanford Mission Plan, Volume I, Site Guidance (DOE-RL 1993). SA&E operations are integrated into the programs that plan and conduct safe waste management, environmental restoration, and operational activities. SA&E personnel are key members of task teams assigned to eliminate urgent risks and inherent threats that exist at the Hanford Site. Key to ensuring protection of public health and safety, and that of onsite workers, are the products and services provided by the department. SA&E will continue to provide a leadership role throughout the DOE complex with innovative, cost-effective approaches to ensuring safety during environmental cleanup operations. The SA&E mission is to provide support to direct program operations through safety analysis and risk documentation and to maintain an infrastructure responsive to the evolutionary climate at the Hanford Site. SA&E will maintain the appropriate skills mix necessary to fulfill the customers need to conduct all operations in a safe and cost-effective manner while ensuring the safety of the public and the onsite worker.
Date: September 27, 1994
Creator: DiVincenzo, E. P.
Object Type: Report
System: The UNT Digital Library
Theoretical study of the noble metals on semiconductor surfaces and Ti-base shape memory alloys (open access)

Theoretical study of the noble metals on semiconductor surfaces and Ti-base shape memory alloys

The electronic and structural properties of the ({radical}3 {times} {radical}3) R30{degrees} Ag/Si(111) and ({radical}3 {times} {radical}3) R30{degrees} Au/Si(111) surfaces are investigated using first principles total energy calculations. We have tested almost all experimentally proposed structural models for both surfaces and found the energetically most favorable model for each of them. The lowest energy model structure of the ({radical}3 {times} {radical}3) R30{degrees} Ag/Si(111) surface consists of a top layer of Ag atoms arranged as ``honeycomb-chained-trimers`` lying above a distorted ``missing top layer`` Si(111) substrate. The coverage of Ag is 1 monolayer (ML). We find that the honeycomb structure observed in STM images arise from the electronic charge densities of an empty surface band near the Fermi level. The electronic density of states of this model gives a ``pseudo-gap`` around the Fermi level, which is consistent with experimental results. The lowest energy model for the ({radical}3 {times} {radical}3) R30{degrees} Au/Si(111) surface is a conjugate honeycomb-chained-trimer (CHCT-1) configuration which consists of a top layer of trimers formed by 1 ML Au atoms lying above a ``missing top layer`` Si(111) substrate with a honeycomb-chained-trimer structure for its first layer. The structures of Au and Ag are in fact quite similar and belong to the …
Date: July 27, 1994
Creator: Ding, Yungui
Object Type: Thesis or Dissertation
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 72, No. 76, Ed. 1 Thursday, January 27, 1994 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 72, No. 76, Ed. 1 Thursday, January 27, 1994

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: January 27, 1994
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 72, No. 102, Ed. 1 Sunday, February 27, 1994 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 72, No. 102, Ed. 1 Sunday, February 27, 1994

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: February 27, 1994
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 72, No. 126, Ed. 1 Sunday, March 27, 1994 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 72, No. 126, Ed. 1 Sunday, March 27, 1994

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 27, 1994
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 72, No. 153, Ed. 1 Wednesday, April 27, 1994 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 72, No. 153, Ed. 1 Wednesday, April 27, 1994

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 27, 1994
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History