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1,596 Matching Results
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LLE Review, Quarterly Report: Volume 77, October-December 1998
This volume of the LLE Review, covering the period October--December 1998, includes two articles addressing issues applicable to direct-drive ICF on the National Ignition Facility (NIF): laser-plasma interactions and laser-irradiation uniformity. Additional highlights of the research presented in this issue are: (1) P.B. Radha and S. Skupsky present a novel charged-particle diagnostic that performs simultaneous {rho}R measurements of the fuel, shell, and ablator regions of a compressed ICF target, consisting of an inner DT fuel region, a plastic (CH) shell, and an ablator (CD), by measuring the knock-on deuteron spectrum. (2) F. Dahmani, S. Burns, J. Lambropoulos, S. Papernov, and A. Schmid report results from stress-inhibited laser-driven crack propagation and stress-delayed damage-initiation experiments in fused silica at 351 nm. Research is underway presently to determine the ramifications of these findings for large-aperture systems, such as OMEGA. (3) V. Goncharov presents an analytic theory of the ablative Richtmyer-Meshkov instability, which shows that the main stabilizing mechanism of the ablation-front perturbations is the dynamic overpressure of the blowoff plasma with respect to the target material. The perturbation evolution during the shock transit time is studied to determine the initial conditions for the Rayleigh-Taylor phase of the instability and to analyze the level …
Date:
December 31, 1998
Creator:
Regan, S. P.
Object Type:
Report
System:
The UNT Digital Library
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 49, Ed. 1 Thursday, June 4, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
June 4, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
Estimating Externalities of Natural Gas Fuel Cycles, Report 4
This report describes methods for estimating the external costs (and possibly benefits) to human health and the environment that result from natural gas fuel cycles. Although the concept of externalities is far from simple or precise, it generally refers to effects on individuals' well being, that result from a production or market activity in which the individuals do not participate, or are not fully compensated. In the past two years, the methodological approach that this report describes has quickly become a worldwide standard for estimating externalities of fuel cycles. The approach is generally applicable to any fuel cycle in which a resource, such as coal, hydro, or biomass, is used to generate electric power. This particular report focuses on the production activities, pollution, and impacts when natural gas is used to generate electric power. In the 1990s, natural gas technologies have become, in many countries, the least expensive to build and operate. The scope of this report is on how to estimate the value of externalities--where value is defined as individuals' willingness to pay for beneficial effects, or to avoid undesirable ones. This report is about the methodologies to estimate these externalities, not about how to internalize them through regulations …
Date:
January 1, 1998
Creator:
Barnthouse, L. W.; Cada, G. F.; Cheng, M. -D.; Easterly, C. E.; Kroodsma, R. L.; Lee, R. et al.
Object Type:
Report
System:
The UNT Digital Library
Estimating externalities of biomass fuel cycles, Report 7
This report documents the analysis of the biomass fuel cycle, in which biomass is combusted to produce electricity. The major objectives of this study were: (1) to implement the methodological concepts which were developed in the Background Document (ORNL/RFF 1992) as a means of estimating the external costs and benefits of fuel cycles, and by so doing, to demonstrate their application to the biomass fuel cycle; (2) to develop, given the time and resources, a range of estimates of marginal (i.e., the additional or incremental) damages and benefits associated with selected impact-pathways from a new wood-fired power plant, using a representative benchmark technology, at two reference sites in the US; and (3) to assess the state of the information available to support energy decision making and the estimation of externalities, and by so doing, to assist in identifying gaps in knowledge and in setting future research agendas. The demonstration of methods, modeling procedures, and use of scientific information was the most important objective of this study. It provides an illustrative example for those who will, in the future, undertake studies of actual energy options and sites. As in most studies, a more comprehensive analysis could have been completed had budget …
Date:
January 1, 1998
Creator:
Barnthouse, L. W.; Cada, G. F.; Cheng, M. -D.; Easterly, C. E.; Kroodsma, R. L.; Lee, R. et al.
Object Type:
Report
System:
The UNT Digital Library
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 7, Ed. 1 Thursday, August 13, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
August 13, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 26, Ed. 1 Thursday, December 24, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
December 24, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 44, Ed. 1 Thursday, April 30, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
April 30, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 34, Ed. 1 Thursday, February 19, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
February 19, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 21, Ed. 1 Thursday, November 19, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
November 19, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 29, Ed. 1 Thursday, January 15, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 12, Ed. 1 Thursday, September 17, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
September 17, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 51, Ed. 1 Thursday, June 18, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
June 18, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 15, Ed. 1 Thursday, October 8, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
October 8, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 20, Ed. 1 Thursday, November 12, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
November 12, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 43, Ed. 1 Thursday, April 23, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 36, Ed. 1 Thursday, March 5, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
March 5, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 18, Ed. 1 Thursday, October 29, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
October 29, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 108, No. 37, Ed. 1 Thursday, March 12, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
March 12, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 109, No. 5, Ed. 1 Thursday, July 30, 1998
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
July 30, 1998
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Big Lake Wildcat (Big Lake, Tex.), Vol. SEVENTY-THIRD YEAR, No. 9, Ed. 1 Thursday, February 26, 1998
Weekly newspaper from Big Lake, Texas that includes local, state and national news along with advertising.
Date:
February 26, 1998
Creator:
Werst, David
Object Type:
Newspaper
System:
The Portal to Texas History
Physical and Functional Characterization of the xy1XYZ Region From TOL Plasmid pDK1 and its Associated Downstream Regulatory Elements
The nucleotide sequence for the pDKl TOL plasmid region encoding toluate-1,2-dioxygenase (Xy1XYZ, TO) was determined. TO is the first enzyme in the meta-cleavage operon, responsible for the conversion of toluates and benzoates to their carboxy-substituted diols. DNA sequence analysis revealed the presence of three open reading frames (ORF). The three ORFs correspond to xylX (1353 bp), xylY (486 bp) and xylZ (1008 bp), encoding predicted protein products of 51370 Da, 19368 Da and 36256 Da, respectively.
Date:
August 1998
Creator:
Hares, Douglas R. (Douglas Ryan)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Texas Parks & Wildlife, Volume 56, Number 8, August 1998
Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date:
August 1998
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Shifts of Focus Among Dimensions of User Information Problems as Represented During Interactive Information Retrieval
The goal of this study is to increase understanding of information problems as they are revealed in interactions among users and search intermediaries during information retrieval. Specifically, this study seeks to investigate: (a) how interaction between users and search intermediaries reveals aspects of user information problems; (b) to explore the concept of representation with respect to information problems in interactive information retrieval; and (c) how user and search intermediaries focus on aspects of user information problems during the course of searches. This project extends research on interactive information retrieval, and presents a theoretical framework that synthesizes rational and non-rational questions concerning mental representation as it pertains to user's understanding of information problems.
Date:
May 1998
Creator:
Robins, David B. (David Bruce)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Big Lake Wildcat (Big Lake, Tex.), Vol. SEVENTY THIRD YEAR, No. 46, Ed. 1 Thursday, November 12, 1998
Weekly newspaper from Big Lake, Texas that includes local, state and national news along with advertising.
Date:
November 12, 1998
Creator:
Werst, David
Object Type:
Newspaper
System:
The Portal to Texas History