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24,412 Matching Results

Start Over Decade 2010-2019 Month March

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Results: 1 - 24 of 24,412 next

(open access)

1.3 GHz superconducting RF cavity program at Fermilab

At Fermilab, 9-cell 1.3 GHz superconducting RF (SRF) cavities are prepared, qualified, and assembled into cryomodules (CMs) for Project X, an International Linear Collider (ILC), or other future projects. The 1.3 GHz SRF cavity program includes targeted R&D on 1-cell 1.3 GHz cavities for cavity performance improvement. Production cavity qualification includes cavity inspection, surface processing, clean assembly, and one or more cryogenic low-power CW qualification tests which typically include performance diagnostics. Qualified cavities are welded into helium vessels and are cryogenically tested with pulsed high-power. Well performing cavities are assembled into cryomodules for pulsed high-power testing in a cryomodule test facility, and possible installation into a beamline. The overall goals of the 1.3 GHz SRF cavity program, supporting facilities, and accomplishments are described.

Date: March 1, 2011

Creator: Ginsburg, C. M.; Arkan, T.; Barbanotti, S.; Carter, H.; Champion, M.; Cooley, L. et al.

Object Type: Article

System: The UNT Digital Library

(open access)

1-D Van der Waals Foams Heated by Ion Beam Energy Deposition

One dimensional simulations of various initial average density aluminum foams (modeled as slabs of solid metal separated by low density regions) heated by volumetric energy deposition are conducted with a Lagrangian hydrodynamics code using a van der Waals equation of state (EOS). The resulting behavior is studied to facilitate the design of future warm dense matter (WDM) experiments at LBNL. In the simulations the energy deposition ranges from 10 to 30 kJ/g and from 0.075 to 4.0 ns total pulse length, resulting in temperatures from approximately 1 to 4 eV. We study peak pressures and temperatures in the foams, expansion velocity, and the phase evolution. Five relevant time scales in the problem are identified. Additionally, we present a method for characterizing the level of inhomogeneity in a foam target as it is heated and the time it takes for a foam to homogenize.

Date: March 19, 2010

Creator: Zylstra, A; Barnard, J J & More, R M

Object Type: Article

System: The UNT Digital Library

E-1 & E-4 new deliveries (3-24-14)

Photograph of Norman E-1 and E-4 on the day they were delivered to the NFD.

Date: March 24, 2014

Creator: unknown

Object Type: Photograph

System: The Gateway to Oklahoma History

(open access)

The “8(a) Program” for Small Businesses Owned and Controlled by the Socially and Economically Disadvantaged: Legal Requirements and Issues

From Summary: "This report provides an overview of the Small Business Administration's (SBA's) Minority Small Business and Capital Ownership Development Program. Based on upon authorities given to the SBA by Sections 7(j) and 8(a) of the Small Business Act of 1958, as amended, this program is commonly known as the "8(a) Program."

Date: March 18, 2010

Creator: Luckey, J. R.

Object Type: Report

System: The UNT Digital Library

(open access)

8(a) Program: Fourteen Ineligible Firms Received $325 Million in Sole-Source and Set-Aside Contracts

A letter report issued by the Government Accountability Office with an abstract that begins "The Small Business Administration (SBA) helps socially and economically disadvantaged small businesses gain access to federal contracting opportunities through its 8(a) program. To participate, firms must be at least 51 percent owned and controlled by an individual who meets SBA's criteria of socially and economically disadvantaged. The firm must also qualify as a small business. Once certified, 8(a) firms are eligible to receive sole-source and set-aside contracts for up to 9 years. GAO was asked to (1) determine whether ineligible firms are participating in the 8(a) program, (2) proactively test SBA's controls over the 8(a) application process, and (3) determine what vulnerabilities, if any, exist in SBA's fraud prevention system. To identify cases, GAO reviewed SBA data and complaints to GAO's fraud hotline. To perform its proactive testing, GAO created four bogus businesses and applied for 8(a) certification. GAO did not attempt to project the extent of fraud and abuse in the program."

Date: March 30, 2010

Creator: United States. Government Accountability Office.

Object Type: Report

System: The UNT Digital Library

(open access)

8(a) Program: The Importance of Effective Fraud Prevention Controls

Testimony issued by the Government Accountability Office with an abstract that begins "This testimony discusses the results of our prior investigation of the Small Business Administration's (SBA) 8(a) Business Development Program. SBA's 8(a) program, named for a section of the Small Business Act, is a development program created to help small, disadvantaged businesses compete in the American economy and access the federal procurement market. To participate in the program, a firm must be certified as meeting several criteria, including: be a small business as defined by SBA; be unconditionally owned and controlled by one or more socially and economically disadvantaged individuals who are of good character and citizens of the United States; and show potential for success. Upon certification, firms can obtain federal contracts without competing fully and openly for the work. For example, agencies are permitted to enter into sole-source contracts after soliciting and negotiating with only one 8(a) company. They also can participate in restricted competitions for federal contracts, known as set-asides, open to only 8(a) companies. In March 2010, GAO issued two companion reports on the 8(a) program, one focused on internal control procedures and processes that SBA has implemented to ensure that only eligible firms participate …

Date: March 3, 2011

Creator: United States. Government Accountability Office.

Object Type: Text

System: The UNT Digital Library

(open access)

08-ERD-071 Final Report: New Molecular Probes and Catalysts for Bioenergy Research

A major thrust in bioenergy research is to develop innovative methods for deconstructing plant cell wall polymers, such as cellulose and lignin, into simple monomers that can be biologically converted to ethanol and other fuels. Current techniques for monitoring a broad array of cell wall materials and specific degradation products are expensive and time consuming. To monitor various polymers and assay their breakdown products, molecular probes for detecting specific carbohydrates and lignins are urgently needed. These new probes would extend the limited biochemical techniques available, and enable realtime imaging of ultrastructural changes in plant cells. Furthermore, degradation of plant biomass could be greatly accelerated by the development of catalysts that can hydrolyze key cell wall polysaccharides and lignin. The objective of this project was to develop cheap and efficient DNA reagents (aptamers) used to detect and quantify polysaccharides, lignin, and relevant products of their breakdown. A practical goal of the research was to develop electrochemical aptamer biosensors, which could be integrated into microfluidic devices and used for high-throughput screening of enzymes or biological systems that degrade biomass. Several important model plant cell wall polymers and compounds were targeted for specific binding and purification of aptamers, which were then tested by …

Date: March 7, 2011

Creator: Thelen, M. P.; Rowe, A. A.; Siebers, A. K. & Jiao, Y.

Object Type: Report

System: The UNT Digital Library

T-31 (3-15-13)

Photograph of Nichols Hills Truck 31. Photo taken at the Oklahoma City FD Training Center, 900 N. Portland.

Date: March 15, 2013

Creator: unknown

Object Type: Photograph

System: The Gateway to Oklahoma History

(open access)

[35 Denton Music Festival program]

Program for the 35 Denton music festival March 11-13, 2016. Contains details regarding the performer lineups at participating venues as well as advertisements for various Denton businesses. Cover features artwork by Nevada Hill.

Date: 2016-03-11/2016-03-13

Creator: unknown

Object Type: Pamphlet

System: The UNT Digital Library

(open access)

50 MW X-BAND RF SYSTEM FOR A PHOTOINJECTOR TEST STATION AT LLNL

In support of X-band photoinjector development efforts at LLNL, a 50 MW test station is being constructed to investigate structure and photocathode optimization for future upgrades. A SLAC XL-4 klystron capable of generating 50 MW, 1.5 microsecond pulses will be the high power RF source for the system. Timing of the laser pulse on the photocathode with the applied RF field places very stringent requirements on phase jitter and drift. To achieve these requirements, the klystron will be powered by a state of the art, solid-state, high voltage modulator. The 50 MW will be divided between the photoinjector and a traveling wave accelerator section. A high power phase shifter is located between the photoinjector and accelerator section to adjust the phasing of the electron bunches with respect to the accelerating field. A variable attenuator is included on the input of the photoinjector. The distribution system including the various x-band components is being designed and constructed. In this paper, we will present the design, layout, and status of the RF system.

Date: March 11, 2011

Creator: Marsh, R A; Anderson, S G; Barty, C J; Beer, G K; Cross, R R; Ebbers, C A et al.

Object Type: Article

System: The UNT Digital Library

E-91 (3-14-14)

Photograph of Oak Cliff E-91. Photo taken at Eastern OK Co. Technology Center in Choctaw.

Date: March 14, 2014

Creator: unknown

Object Type: Photograph

System: The Gateway to Oklahoma History

E-92 (3-14-14)

Photograph of Oak Cliff FD Engine 92. Photo taken at Eastern OK Co. Technology Center in Choctaw.

Date: March 14, 2014

Creator: unknown

Object Type: Photograph

System: The Gateway to Oklahoma History

(open access)

100-B/C Target Analyte List Development for Soil

This report documents the process used to identify source area target analytes in support of the 100-B/C remedial investigation/feasibility study addendum to DOE/RL-2008-46. This report also establishes the analyte exclusion criteria applicable for 100-B/C use and the analytical methods needed to analyze the target analytes.

Date: March 18, 2010

Creator: Ovink, R.W.

Object Type: Report

System: The UNT Digital Library

(open access)

100% Renewable Energy - and Beyond - for Cities

This booklet sketches out the options and the processes that have started to transform urban energy systems. The document promotes carbon neutrality for communities and cities and argues that even the largest cities can make this transition, drawing on renewable energy supplies from within their boundaries, as well as from farther away. In addition to assuring urban energy security, these developments can also stimulate the growth of a very large new green economy sector.

Date: March 2010

Creator: Droege, Peter

Object Type: Text

System: The UNT Digital Library

(open access)

The 300 mA SRF ERL

N/A

Date: March 14, 2013

Creator: Ben-Zvi, Ilan

Object Type: Article

System: The UNT Digital Library

(open access)

401(K) Plans: Certain Investment Options and Practices That May Restrict Withdrawals Not Widely Understood

A letter report issued by the Government Accountability Office with an abstract that begins "401(k) plan sponsors are responsible for offering an array of appropriate investment options, and participants are responsible for directing their investments among those options. While participants expect to be able to switch investment options or withdraw money from their accounts, during the recent economic downturn, some 401(k) plan sponsors and participants found that they were restricted from doing so. GAO was asked to (1) identify some of the specific investments and practices that prevented plan sponsors and participants from accessing their 401(k) plan assets and (2) determine any changes the Department of Labor (Labor) could make to assist sponsors in understanding the challenges posed by the investments and practices that restricted withdrawals. To do this, GAO reviewed relevant federal laws and regulations and consulted with experts, federal officials, service providers, and plan sponsors."

Date: March 10, 2011

Creator: United States. Government Accountability Office.

Object Type: Report

System: The UNT Digital Library

(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

(open access)

401(K) Plans: Labor and IRS Could Improve the Rollover Process for Participants

A letter report issued by the Government Accountability Office with an abstract that begins "The current rollover process favors distributions to individual retirement accounts (IRA). Waiting periods to roll into a new employer plan, complex verification procedures to ensure savings are tax-qualified, wide divergences in plans' paperwork, and inefficient practices for processing rollovers make IRA rollovers an easier and faster choice, especially given that IRA providers often offer assistance to plan participants when they roll their savings into an IRA. The Department of Labor (Labor) and the Internal Revenue Service (IRS) provide oversight and guidance for this process generally and can take steps to make plan-to-plan rollovers more efficient, such as reducing the waiting period to roll over into a 401(k) plan and improving the asset verification process. Such actions could help make staying in the 401(k) plan environment a more viable option, allowing participants to make distribution decisions based on their financial circumstances rather than on convenience."

Date: March 7, 2013

Creator: United States. Government Accountability Office.

Object Type: Report

System: The UNT Digital Library

(open access)

1099 Information Reporting Requirements and Penalties as Modified by the Patient Protection and Affordable Care Act and the Small Business Jobs Act of 2010

This report discuses the 2010 expansion of reporting requirements listed in IRC (Internal Revenue Code) 6041. The controversy in these expansions lies in the burden the expansion imposes on small businesses. The report also describes the pieces of legislation that have amended IRC 6041, and the implications of that legislation along with the consequences of IRC 6041.

Date: March 4, 2011

Creator: Pettit, Carol A. & Liu, Edward C.

Object Type: Report

System: The UNT Digital Library