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413 Matching Results

Start Over Decade 2000-2009 Month March Day 18th

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Results: 1 - 24 of 413 next

(open access)

Timpson & Tenaha News (Timpson, Tex.), Vol. 19, No. 11, Ed. 1 Thursday, March 18, 2004

Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.

Date: March 18, 2004

Creator: Alexander, Nancy

Object Type: Newspaper

System: The Portal to Texas History

(open access)

Nanoscience Research for Energy Needs. Report of the National Nanotechnology Initiative Grand Challenge Workshop, March 16-18, 2004

This document is the report of a workshop held under NSET auspices in March 2004 aimed at identifying and articulating the relationship of nanoscale science and technology to the Nation's energy future.

Date: March 18, 2004

Creator: Alivisatos, P.; Cummings, P.; De Yoreo, J.; Fichthorn, K.; Gates, B.; Hwang, R. et al.

Object Type: Report

System: The UNT Digital Library

(open access)

Enron: A Select Chronology of Congressional, Corporate, and Government Activities

This report presents basic background information on the collapse of the Enron Corporation, identifying public policy issues in financial market oversight. This report briefly summarizes some federal laws carrying criminal penalties which may be implicated in the events surrounding the collapse of the Enron Corp. This report compares the auditing and accounting reform measures passed by the House (H.R. 3763) and reported by the Senate Committee on Banking, Housing, and Urban Affairs. This report compares the major provisions of three auditor and accounting reform proposals: H.R. 3763, S. 2673, and a rule proposed on June 20, 2002, by the SEC that would create a new auditor oversight board by using the SEC’s existing authority to regulate corporate accounting. The report focuses on Section 404(a) of the Employee Retirement Income Security Act (ERISA), the federal statute that regulates employer-sponsored pension plans. Section 404(a) is considered the “touchstone for understanding the scope and object of an ERISA fiduciary’s duties.”

Date: March 18, 2003

Creator: Anderson, J. Michael

Object Type: Report

System: The UNT Digital Library

(open access)

Altus Times (Altus, Okla.), Vol. 105, No. 314, Ed. 1 Thursday, March 18, 2004

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Date: March 18, 2004

Creator: Andrews, Mike

Object Type: Newspaper

System: The Gateway to Oklahoma History

(open access)

Altus Times (Altus, Okla.), Vol. 106, No. 294, Ed. 1 Friday, March 18, 2005

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Date: March 18, 2005

Creator: Andrews, Mike

Object Type: Newspaper

System: The Gateway to Oklahoma History

(open access)

Sensitivity of Satellite-Retrieved Cloud Properties to the Effective Variance of Cloud Droplet Size Distribution

Cloud reflectance models currently used in cloud property retrievals from satellites have been developed using size distributions defined by a set of fixed effective radii with a fixed effective variance. The satellite retrievals used for the Atmospheric Radiation Measurement (ARM) program assume droplet size distributions with an effective variance value of 0.10 (Minnis et al. 1998); the International Satellite Cloud Climatology Project uses 0.15 (Rossow and Schiffer 1999); and the Moderate Resolution Imaging Spectroradiometer (MODIS) team uses 0.13 (Nakajima and King 1990). These distributions are not necessarily representative of the actual sizes present in the clouds being observed. Because the assumed distributions can affect the reflectance patterns and near-infrared absorption, even for the same droplet effective radius reff, it is desirable to use the optimal size distributions in satellite retrievals of cloud properties. Collocated observations of the same clouds from different geostationary satellites, at different viewing angles, indicate that the current models may not be optimal (Ayers et al. 2005). Similarly, hour-to-hour variations in effective radius and optical depth reveal an unexplained dependence on scattering angle. To explore this issue, this paper examines the sensitivity of the cloud reflectance at 0.65 and 3.90-{micro}m to changes in the effective variance, or …

Date: March 18, 2005

Creator: Arduini, R. F.; Minnis, P.; Smith, Jr., W. L.; Ayers, J. K.; Khaiyer, M. M. & Heck, P.

Object Type: Article

System: The UNT Digital Library

(open access)

Catalytic Hydration of Alkenes and Alkynes

The fifteen years of DOE support have encompassed two different projects, electron-transfer reactions of metal carbonyl anions and water-soluble organometallic complexes. Each of these is related to homogeneous catalysis and will be described in separate sections. Electron Transfer--Twenty-one manuscripts resulted from our studies of electron-transfer reactions of metal carbonyl anions and acknowledge DOE support. Construction of an infrared stopped-flow system allowed us to measure rates of reactions for the extremely air-sensitive metal carbonyl anions. As for carbanions, both one-electron and two-electron processes occur for metal carbonyl anions. The most unexpected feature was examples of a very rapid two-electron process, followed by a much slower one-electron back transfer. The two-electron processes were accompanied by transfer of a ligand between two metals, M-X + M{prime}{sup -} {yields} M{sup -} + M{prime}-X with X groups of CO{sup 2}, H{sup +}, CH{sub 3}{sup +} and Br{sup +}. These transfers, which can be considered nucleophilic displacements, occurred when M{prime}{sup -} was more nucleophilic than M{sup -}. The 21 published manuscripts explore one- and two-electron processes for many such organometallic complexes. Water-Soluble Organometallic Complexes--The potential of water-soluble organometallic complexes in ''green chemistry'' intrigued us. Sixteen manuscripts acknowledging DOE support have appeared thus far in this field. …

Date: March 18, 2003

Creator: Atwood, Jim D.

Object Type: Report

System: The UNT Digital Library

(open access)

Mesoscale Modeling During Mixed-Phase Arctic Cloud Experiment

Mixed-phase arctic stratus clouds are the predominant cloud type in the Arctic (Curry et al. 2000) and through various feedback mechanisms exert a strong influence on the Arctic climate. Perhaps one of the most intriguing of their features is that they tend to have liquid tops that precipitate ice. Despite the fact that this situation is colloidally unstable, these cloud systems are quite long lived - from a few days to over a couple of weeks. It has been hypothesized that mixed-phase clouds are maintained through a balance between liquid water condensation resulting from the cloud-top radiative cooling and ice removal by precipitation (Pinto 1998; Harrington et al. 1999). In their modeling study Harrington et al. (1999) found that the maintenance of this balance depends strongly on the ambient concentration of ice forming nucleus (IFN). In a follow-up study, Jiang et al. (2002), using only 30% of IFN concentration predicted by Meyers et al. (1992) IFN parameterization were able to obtain results similar to the observations reported by Pinto (1998). The IFN concentration measurements collected during the Mixed-Phase Arctic Cloud Experiment (M-PACE), conducted in October 2004 over the North Slope of Alaska and the Beaufort Sea (Verlinde et al. 2005), …

Date: March 18, 2005

Creator: Avramov, A.; Harringston, J.Y. & Verlinde, J.

Object Type: Article

System: The UNT Digital Library

(open access)

Final Report - Independent Confirmatory Survey Summary and Results for the Hematite Decommissioning Project

The objectives of the confirmatory surveys were to provide independent contractor field data reviews and to generate independent radiological data for use by the NRC in evaluating the adequacy and accuracy of the licensee’s procedures and survey results.

Date: March 18, 2009

Creator: Bailey, E.N.

Object Type: Report

System: The UNT Digital Library

(open access)

Legal Issues Related to Proposed Drilling for Oil and Gas in the Arctic National Wildlife Refuge (ANWR)

This report outlines legal issues around permit drilling for oil and gas in the coastal plain of the Arctic National Wildlife Refuge (ANWR), Alaska as background for congressional legislation. Updated March 18, 2023.

Date: March 18, 2003

Creator: Baldwin, Pamela

Object Type: Report

System: The UNT Digital Library

(open access)

Nanotechnology Based Environmentally Robust Primers

An initiator device structure consisting of an energetic metallic nano-laminate foil coated with a sol-gel derived energetic nano-composite has been demonstrated. The device structure consists of a precision sputter deposition synthesized nano-laminate energetic foil of non-toxic and non-hazardous metals along with a ceramic-based energetic sol-gel produced coating made up of non-toxic and non-hazardous components such as ferric oxide and aluminum metal. Both the nano-laminate and sol-gel technologies are versatile commercially viable processes that allow the ''engineering'' of properties such as mechanical sensitivity and energy output. The nano-laminate serves as the mechanically sensitive precision igniter and the energetic sol-gel functions as a low-cost, non-toxic, non-hazardous booster in the ignition train. In contrast to other energetic nanotechnologies these materials can now be safely manufactured at application required levels, are structurally robust, have reproducible and engineerable properties, and have excellent aging characteristics.

Date: March 18, 2003

Creator: Barbee, T. W., Jr.; Gash, A. E.; Satcher, J. H. Jr. & Simpson, R. L.

Object Type: Article

System: The UNT Digital Library

$Constant Refractive Index Multi-Core Fiber Laser$ (open access)

Constant Refractive Index Multi-Core Fiber Laser

A scalable fiber laser approach is described based on phase-locking multiple gain cores in an antiguided structure. The waveguide is comprised of periodic sequences of gain- and no-gain-loaded segments having uniform index, within the cladding region. Initial experimental results are presented.

Date: March 18, 2002

Creator: Beach, R J; Feit, M D; Brasure, L D; Payne, S A; Mead, R W; Hayden, J S et al.

Object Type: Article

System: The UNT Digital Library

(open access)

The International Space Station and the Space Shuttle

This report discusses recent developments and funding for the International Space Station and the Space Shuttle program.

Date: March 18, 2009

Creator: Behrens, Carl E.

Object Type: Report

System: The UNT Digital Library

(open access)

U.S. Energy: Overview and Selected Facts and Numbers

This report offers an overview of energy markets, supplies and prices. It also provides figures regarding the energy consumption in United States since 1950s.

Date: March 18, 2009

Creator: Behrens, Carl E. & Glover, Carol

Object Type: Report

System: The UNT Digital Library

(open access)

Energy and Water Development: FY2009 Appropriations

None

Date: March 18, 2008

Creator: Behrens, Carl E.; Andrews, Anthony; Bearden, David M.; Carter, Nicole T.; Holt, Mark; Lane, Nic et al.

Object Type: Report

System: The UNT Digital Library

(open access)

A Guidance Document for Kentucky's Oil and Gas Operators

The accompanying report, manual and assimilated data represent the initial preparation for submission of an Application for Primacy under the Class II Underground Injection Control (UIC) program on behalf of the Commonwealth of Kentucky. The purpose of this study was to identify deficiencies in Kentucky law and regulation that would prevent the Kentucky Division of Oil and Gas from receiving approval of primacy of the UIC program, currently under control of the United States Environmental Protection Agency (EPA) in Atlanta, Georgia.

Date: March 18, 2002

Creator: Bender, Rick

Object Type: Report

System: The UNT Digital Library

(open access)

Alternative implementations of the Monte Carlo power method.

We compare nominal efficiencies, i.e. variances in power shapes for equal running time, of different versions of the Monte Carlo eigenvalue computation, as applied to criticality safety analysis calculations. The two main methods considered here are ''conventional'' Monte Carlo and the superhistory method, and both are used in criticality safety codes. Within each of these major methods, different variants are available for the main steps of the basic Monte Carlo algorithm. Thus, for example, different treatments of the fission process may vary in the extent to which they follow, in analog fashion, the details of real-world fission, or may vary in details of the methods by which they choose next-generation source sites. In general the same options are available in both the superhistory method and conventional Monte Carlo, but there seems not to have been much examination of the special properties of the two major methods and their minor variants. We find, first, that the superhistory method is just as efficient as conventional Monte Carlo and, secondly, that use of different variants of the basic algorithms may, in special cases, have a surprisingly large effect on Monte Carlo computational efficiency.

Date: March 18, 2002

Creator: Blomquist, R.N. & Gelbard, E.M.

Object Type: Report

System: The UNT Digital Library

(open access)

PROCEEDINGS OF RIKEN BNL RESEARCH CENTER WORKSHOP, HADRON STRUCTURE FROM LATTICE QCD, MARCH 18 - 22, 2002, BROOKHAVEN NATIONAL LABORATORY.

The RIKEN BNL Research Center workshop on ''Hadron Structure from Lattice QCD'' was held at BNL during March 11-15, 2002. Hadron structure has been the subject of many theoretical and experimental investigations, with significant success in understanding the building blocks of matter. The nonperturbative nature of QCD, however, has always been an obstacle to deepening our understanding of hadronic physics. Lattice QCD provides the tool to overcome these difficulties and hence a link can be established between the fundamental theory of QCD and hadron phenomenology. Due to the steady progress in improving lattice calculations over the years, comparison with experimentally measured hadronic quantities has become important. In this respect the workshop was especially timely. By providing an opportunity for experts from the lattice and hadron structure communities to present their latest results, the workshop enhanced the exchange of knowledge and ideas. With a total of 32 registered participants and 26 talks, the interest of a growing community is clearly exemplified. At the workshop Schierholz and Negele presented the current status of lattice computations of hadron structure. Substantial progress has been made during recent years now that the quenched results are well under control and the first dynamical results have appeared. …

Date: March 18, 2002

Creator: Blum, T.; Boer, D.; Creutz, M.; Ohta, S. & Orginos, K.

Object Type: Report

System: The UNT Digital Library