4-D conformal field theories and strings on orbifolds (open access)

4-D conformal field theories and strings on orbifolds

None
Date: March 16, 1998
Creator: Kachru, Shamit & Silverstein, Eva
Object Type: Article
System: The UNT Digital Library
401(k) Plans: Issues Involving Securities Lending in Plan Investments (open access)

401(k) Plans: Issues Involving Securities Lending in Plan Investments

Testimony issued by the Government Accountability Office with an abstract that begins "Securities lending can be a relatively straightforward way for plan sponsors and participants to increase their return on 401(k) investments. However, securities lending can also present a number of challenges to plan participants and plan sponsors. GAO was asked to explain how securities lending with cash collateral reinvestment works in relation to 401(k) plan investments, who bears the risks, and what are some of the challenges plan participants and plan sponsors face in understanding securities lending with cash collateral reinvestment. In this testimony, GAO discusses its recent work regarding securities lending with cash collateral reinvestment. GAO is making no new recommendations in this statement but continues to believe that the Department of Labor (Labor) can take action to help plan sponsors of 401(k) plans and plan participants to understand the role, risk, and benefits of securities lending with cash collateral reinvestment in relation to 401(k) plan investments. Specifically, GAO recommended that Labor provide more guidance to plan sponsors about fees and returns when plan assets are utilized in securities lending with cash collateral reinvestment, amend its participant disclosure regulation to include provisions specific to securities lending with cash …
Date: March 16, 2011
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
21st Century Community Learning Centers in P.L. 107-110: Background and Funding (open access)

21st Century Community Learning Centers in P.L. 107-110: Background and Funding

This report summarizes the major provisions of the reauthorized 21st Century Community Learning Centers (21st CCLC) program. It includes sections on fundings, national reservations, formula grants to states, competitive local grants, history, program effectiveness, and relevant legislation in the 107th Congress.
Date: March 16, 2004
Creator: McCallion, Gail
Object Type: Report
System: The UNT Digital Library
630A MARITIME NUCLEAR STEAM GENERATOR. Progress Report No. 7 (open access)

630A MARITIME NUCLEAR STEAM GENERATOR. Progress Report No. 7

This progress report covers the period from November 15, 1963 to February 15, 1964. A study indicated that the most desirable type of blower drive turbine is one using main turbine throttie steam conditions and exhausting to the main turbine cross-over line. Preliminary planning for the initiation of a dynamic structural analyses of the overall steam generator was completed. External pressure loading and thermal stress calculations show that the calandria has a suitable design margin. A revised fuel latch operable from the rear face of the core was designed. A study was initiated to determine the feasibility of substituting Zircaloy for the stainless steel tubing within the active core. Preliminary sizing of control rod extensions and gang plates was completed. Initial loading of the second configuration of the 630A critical experiment reactor was completed. Detailed power distributions were measured in the 11 typical positions. Subcritical and critical rod worth curves were obtained in the critical experiment with up to 132 shim rods in the core. Moderator temperature coefficient measurements were made and agreed well with analytical data. Critical experiment correlation of fine radial power calculations in the revised mock-up showed good agreement. Performance specifications were prepared for a 1-Mw(e) power …
Date: March 16, 1964
Creator: unknown
Object Type: Report
System: The UNT Digital Library
85th Texas Legislature, Regular Session, House Concurrent Resolution 40 (open access)

85th Texas Legislature, Regular Session, House Concurrent Resolution 40

Concurrent resolution introduced by the Texas House of Representatives and Senate recognizing February 15, 2017, as Alabama-Coushatta Tribe of Texas Day at the State Capitol.
Date: March 16, 2017
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
85th Texas Legislature, Regular Session, House Concurrent Resolution 80 (open access)

85th Texas Legislature, Regular Session, House Concurrent Resolution 80

Concurrent resolution introduced by the Texas House of Representatives and Senate in memory of Choco Gonzalez Meza of San Antonio.
Date: March 16, 2017
Creator: Texas. Legislature. House of Representatives.
Object Type: Legislative Document
System: The Portal to Texas History
Acceptance Test Report for Gamma Carts A and B (open access)

Acceptance Test Report for Gamma Carts A and B

Report of Shop Test of the Gamma Cart System to be used in the AZ-101 Mixer Pump Demonstration Test. Reports of the hardware and software tests. The objective of the testing was to verify in the shop that the hardware and software operated according to design specifications before field-testing and installation.
Date: March 16, 2000
Creator: Fuller, P. J.
Object Type: Report
System: The UNT Digital Library
Active Transport of Nanomaterials Using Motor Proteins Final report for DOE-BES grant DE-FG03-03ER46024 (open access)

Active Transport of Nanomaterials Using Motor Proteins Final report for DOE-BES grant DE-FG03-03ER46024

During the two year period of funding we have focused on the following topics: Guiding of microtubule movement on kinesin-coated, structured surfaces, directed assembly of oriented microtubule networks, and the interaction between synthetic materials and biological components in hybrid devices based on microtubules and kinesin motors. Additional efforts have been made and are still on- going in controlling the motor activity, and loading and unloading of cargo. In all aspects, the collaboration with the team at Sandia has been critical. A constant intellectual and material connection has been maintained by frequent visits, videoconferences, and exchanges of parts and supplies, such as microfabricated structures and motor proteins. The scientific advances made through this collaboration have been documented in seven publications in high- impact journals and an encyclopedia, discussed in invited talks at the annual meetings of MRS and ACS, and publicized by journalists in “The Scientist” and “Nature Materials Nanozone”. One double Ph.D. degree in Bioengineering and Nanotechnology has been completed (John Clemmens).
Date: March 16, 2005
Creator: Hess, Henry
Object Type: Report
System: The UNT Digital Library
Adjustable Headlight-Reflector (open access)

Adjustable Headlight-Reflector

Patent for an adjustable headlight reflector for train engines which will shine the light straight in front of the train.
Date: March 16, 1909
Creator: Pratt, James R.
Object Type: Patent
System: The Portal to Texas History
Advanced Experimental Analysis of Controls on Microbial Fe(III) Oxide Reduction - Final Report - 09/16/1996 - 03/16/2001 (open access)

Advanced Experimental Analysis of Controls on Microbial Fe(III) Oxide Reduction - Final Report - 09/16/1996 - 03/16/2001

Considering the broad influence that microbial Fe(III) oxide reduction can have on subsurface metal/organic contaminant biogeochemistry, understanding the mechanisms that control this process is critical for predicting the behavior and fate of these contaminants in anaerobic subsurface environments. Knowledge of the factors that influence the rates of growth and activity of Fe(III) oxide-reducing bacteria is critical for predicting (i.e., modeling) the long-term influence of these organisms on the fate of contaminants in the subsurface, and for effectively utilizing Fe(III) oxide reduction and associated geochemical affects for the purpose of subsurface metal/organic contamination bioremediation. This research project will refine existing models for microbiological and geochemical controls on Fe(III) oxide reduction, using laboratory reactor systems that mimic, to varying degrees, the physical and chemical conditions of the subsurface. Novel experimental methods for studying the kinetics of microbial Fe(III) oxide reduction and measuring growth rates of Fe(III) oxide-reducing bacteria will be developed. These new methodologies will be directly applicable to studies on subsurface contaminant transformations directly coupled to or influenced by microbial Fe(III) oxide reduction.
Date: March 16, 2001
Creator: Roden, Eric E.
Object Type: Report
System: The UNT Digital Library
An advanced hadron facility: A combined kaon factory and cold-neutron source (open access)

An advanced hadron facility: A combined kaon factory and cold-neutron source

A design concept is presented for an advanced hadron facility consisting of a combined kaon factory and second generation spallation source. Our proposed facility consists of a 1.2 GeV superconducting H/sup -/ linac to bring the LAMPF energy up to 2 GeV, a multi-ring 2 GeV compressor, a shared cold-neutron and stopped-pion neutrino source, a 60 GeV 25 ..mu..Amp 6 Hz proton synchrotron, and kaon and proton experimental areas. We discuss the considerations which led to this design concept. We summarize recent results of r and d work on components for rapid-cycling synchrotrons. Finally, we mention briefly a pion linac, which may be a good way to gain experience with superconducting cavities if advanced hadron facility funding is delayed.
Date: March 16, 1987
Creator: Thiessen, H.A.
Object Type: Article
System: The UNT Digital Library
Advanced thermal barrier coating system development. Technical progress report (open access)

Advanced thermal barrier coating system development. Technical progress report

This report describes work to develop new thermal barrier coating systems, which will be essential to the operation of the ATS engine which is under development. Work is at the stage of process improvement and bond coat improvement, along with proof testing of the coatings under thermal conditions typical of what can be expected in the ATS engine.
Date: March 16, 1998
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced Worker Protection System: Final Report (open access)

Advanced Worker Protection System: Final Report

From 1993 to 2000, OSS worked under a cost share contract from the Department of Energy (DOE) to develop an Advanced Worker Protection System (AWPS). The AWPS is a protective ensemble that provides the user with both breathing air and cooling for a NIOSH-rated duration of two hours. The ensemble consists of a liquid air based backpack, a Liquid Cooling Garment (LCG), and an outer protective garment. The AWPS project was divided into two phases. During Phase 1, OSS developed and tested a full-scale prototype AWPS. The testing showed that workers using the AWPS could work twice as long as workers using a standard SCBA. The testing also provided performance data on the AWPS in different environments that was used during Phase 2 to optimize the design. During Phase 1, OSS also performed a life-cycle cost analysis on a representative clean up effort. The analysis indicated that the AWPS could save the DOE millions of dollars on D and D activities and improve the health and safety of their workers. During Phase 2, OSS worked to optimize the AWPS design to increase system reliability, to improve system performance and comfort, and to reduce the backpack weight and manufacturing costs. To …
Date: March 16, 2001
Creator: Hedgehock, Judson
Object Type: Report
System: The UNT Digital Library
ADVANCES IN SE-79 ANALYSES ON SAVANNAH RIVER SITE RADIOACTIVE WASTE MATRICES (open access)

ADVANCES IN SE-79 ANALYSES ON SAVANNAH RIVER SITE RADIOACTIVE WASTE MATRICES

Waste cleanup efforts underway at the United States Department of Energy's (DOE) Savannah River Site (SRS) in South Carolina, as well as other DOE nuclear sites, have created a need to characterize {sup 79}Se in radioactive waste inventories. Successful analysis of {sup 79}Se in high activity waste matrices is challenging for a variety of reasons. As a result of these unique challenges, the successful quantification of {sup 79}Se in the types of matrices present at SRS requires an extremely efficient and selective separation of {sup 79}Se from high levels of interfering radionuclides. A robust {sup 79}Se radiochemical separation method has been developed at the Savannah River National Laboratory (SRNL) which is routinely capable of successfully purifying {sup 79}Se from a wide range of interfering radioactive species. In addition to a dramatic improvements in the Kd, ease, and reproducibility of the analysis, the laboratory time has been reduced from several days to only 6 hours.
Date: March 16, 2009
Creator: Diprete, D; C Diprete, C; Ned Bibler, N; Cj Bannochie, C & Michael Hay, M
Object Type: Article
System: The UNT Digital Library
Agricultural Biotechnology: The U.S.-EU Dispute (open access)

Agricultural Biotechnology: The U.S.-EU Dispute

This report focuses on a conflict between the European Union (EU) and the United States, Canada, and Argentina. The United States suggests that the European Union's moratorium costs the U.S. 300 million dollars in exports to the EU annually. Moreover, the report highlights other concerns the U.S. has with the EU's biotechnology policies.
Date: March 16, 2004
Creator: Becker, Geoffrey S. & Hanrahan, Charles E.
Object Type: Report
System: The UNT Digital Library
Air-Compressing Apparatus. (open access)

Air-Compressing Apparatus.

Patent for a new air compressing apparatus which employs two kinds of tanks called high pressure containers and low pressure containers charged by means of an air compressing engine.
Date: March 16, 1915
Creator: Gebhardt, William Charles
Object Type: Patent
System: The Portal to Texas History
Air-Cushion Tire. (open access)

Air-Cushion Tire.

Patent for improvement to the air-cushion tire in terms of resilience, and an improved structure.
Date: March 16, 1920
Creator: Williams, Harry S.
Object Type: Patent
System: The Portal to Texas History
Alara Assessment of Settler Sludge Sampling Methods (open access)

Alara Assessment of Settler Sludge Sampling Methods

The purpose of this assessment is to compare underwater and above water settler sludge sampling methods to determine if the added cost underwater sampling for the sole purpose of worker dose reductions is justified.
Date: March 16, 2009
Creator: La, Nelsen
Object Type: Report
System: The UNT Digital Library
ALEGRA -- code validation: Experiments and simulations (open access)

ALEGRA -- code validation: Experiments and simulations

In this study, the authors are providing an experimental test bed for validating features of the ALEGRA code over a broad range of strain rates with overlapping diagnostics that encompass the multiple responses. A unique feature of the Arbitrary Lagrangian Eulerian Grid for Research Applications (ALEGRA) code is that it allows simultaneous computational treatment, within one code, of a wide range of strain-rates varying from hydrodynamic to structural conditions. This range encompasses strain rates characteristic of shock-wave propagation (10{sup 7}/s) and those characteristic of structural response (10{sup 2}/s). Most previous code validation experimental studies, however, have been restricted to simulating or investigating a single strain-rate regime. What is new and different in this investigation is that the authors have performed well-instrumented experiments which capture features relevant to both hydrodynamic and structural response in a single experiment. Aluminum was chosen for use in this study because it is a well characterized material--its EOS and constitutive material properties are well defined over a wide range of loading rates. The current experiments span strain rate regimes of over 10{sup 7}/s to less than 10{sup 2}/s in a single experiment. The input conditions are extremely well defined. Velocity interferometers are used to record the …
Date: March 16, 1998
Creator: Chhabildas, L. C.; Konrad, C. H.; Mosher, D. A.; Reinhart, W. D.; Duggins, B. D.; Rodeman, R. et al.
Object Type: Article
System: The UNT Digital Library
Altitude-wind-tunnel investigation of various can-type burners in Bumblebee 18-inch ram jet (open access)

Altitude-wind-tunnel investigation of various can-type burners in Bumblebee 18-inch ram jet

An investigation on various can-type burners in a Bumblebee 18-inch ram jet under controlled conditions of pressure altitude and ram pressure ratio was conducted in the NACA Lewis altitude wind tunnel with kerosene as fuel. The performance of the following can-type burner configurations was better than that of the other burner configurations investigated: (1) a flame holder having a two-pitch alinement of perforations, 0.07-inch-wide cooling slots, and an arrangement of fuel nozzles located within an annulus having a mean radius of 7.24 inches; and (2) a flame holder having a zero-pitch alinement of perforations, 0.16-inch-wide cooling slots, and an annulus of fuel nozzles having a mean radius of 6.89 inches.
Date: March 16, 1949
Creator: Dupree, D. T.; Nussdorfer, T. J. & Sterbentz, W. H.
Object Type: Report
System: The UNT Digital Library
Amendments to the Foreign Intelligence Surveillance Act (FISA) Set to Expire February 28, 2010 (open access)

Amendments to the Foreign Intelligence Surveillance Act (FISA) Set to Expire February 28, 2010

The Foreign Intelligence Surveillance Act (FISA) provides a statutory framework by which government agencies may, when gathering foreign intelligence investigation, obtain authorization to conduct electronic surveillance or physical searches, utilize pen registers and trap and trace devices, or access specified business records and other tangible things. This report discusses three sunsetting amendments of FISA which include the "Lone Wolf" provision, "roving" wiretaps, and access to business records.
Date: March 16, 2009
Creator: Henning, Anna C. & Liu, Edward C.
Object Type: Report
System: The UNT Digital Library
Annual Report of Groundwater Monitoring at Centralia, Kansas, in 2010 (open access)

Annual Report of Groundwater Monitoring at Centralia, Kansas, in 2010

In September 2005, periodic sampling of groundwater was initiated by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) in the vicinity of a grain storage facility formerly operated by the CCC/USDA at Centralia, Kansas. The sampling at Centralia is performed on behalf of the CCC/USDA by Argonne National Laboratory, in accord with a monitoring program approved by the Kansas Department of Health and Environment (KDHE). The objective is to monitor levels of carbon tetrachloride contamination identified in the groundwater at Centralia (Argonne 2003, 2004, 2005a). Under the KDHE-approved monitoring plan (Argonne 2005b), the groundwater was sampled twice yearly from September 2005 until September 2007 for analyses for volatile organic compounds (VOCs), as well as measurement of selected geochemical parameters to aid in the evaluation of possible natural contaminant degradation processes (reductive dechlorination) in the subsurface environment (Argonne 2006, 2007a, 2008a). The results from the two-year sampling program demonstrated the presence of carbon tetrachloride contamination at levels exceeding the KDHE Tier 2 risk-based screening level (RBSL) of 5 {micro}g/L for this compound, in a localized groundwater plume that has shown little movement. The relative concentrations of chloroform, the primary degradation product of carbon tetrachloride, suggested that some degree …
Date: March 16, 2011
Creator: LaFreniere, L. M.
Object Type: Report
System: The UNT Digital Library
Annual Report of the Boy Scouts of America: 1969 (open access)

Annual Report of the Boy Scouts of America: 1969

Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1970, activities, organizational leadership, and other information about scouting programs.
Date: March 16, 1970
Creator: Boy Scouts of America
Object Type: Report
System: The Portal to Texas History
Anomalies on orbifolds (open access)

Anomalies on orbifolds

We discuss the form of the chiral anomaly on an S1/Z2 orbifold with chiral boundary conditions. We find that the 4-divergence of the higher-dimensional current evaluated at a given point in the extra dimension is proportional to the probability of finding the chiral zero mode there. Nevertheless the anomaly, appropriately defined as the five dimensional divergence of the current, lives entirely on the orbifold fixed planes and is independent of the shape of the zero mode. Therefore long distance four dimensional anomaly cancellation ensures the consistency of the higher dimensional orbifold theory.
Date: March 16, 2001
Creator: Arkani-Hamed, Nima; Cohen, Andrew G. & Georgi, Howard
Object Type: Article
System: The UNT Digital Library