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3-D Characterization of the Structure of Paper and Paperboard and Their Application to Optimize Drying and Water Removal Processes and End-Use Applications

Description: The three dimensional structure of paper materials plays a critical role in the paper manufacturing process especially via its impact on the transport properties for fluids. Dewatering of the wet web, pressing and drying will benefit from knowledge of the relationships between the web structure and its transport coefficients. The structure of the pore space within a paper sheet is imaged in serial sections using x-ray micro computed tomography. The three dimensional structure is reconstructed f… more
Date: August 29, 2004
Creator: Shri Ramaswamy, University of Minnesota & B.V. Ramarao, State University of New York
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

44-BWR WASTE PACKAGE LOADING CURVE EVALUATION

Description: The objective of this calculation is to evaluate the required minimum burnup as a function of initial boiling water reactor (BWR) assembly enrichment that would permit loading of spent nuclear fuel into the 44 BWR waste package configuration as provided in Attachment IV. This calculation is an application of the methodology presented in ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of enrichments from 0 through 5.0 weight p… more
Date: August 25, 2004
Creator: Scaglione, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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14th Workshop on Crystalline Silicon Solar Cells & Modules: Materials and Processes; Extended Abstracts and Papers

Description: The 14th Workshop will provide a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and relevant non-photovoltaic fields. It will offer an excellent opportunity for researchers in private industry and at universities to prioritize mutual needs for future collaborative research. The workshop is intended to address the fundamental properties of PV silicon, new solar cell designs, advanced solar cell processing techniques, a… more
Date: August 1, 2004
Creator: Sopori, B. L.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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2004 Annual Meeting - Genes, Mutations and Disease: The Environmental Connection

Description: The Meeting consisted of 9 Symposia, 4 Keynote Lectures, 3 Platform Sessions and 4 Poster Sessions. In addition there were Breakfast Meetings for Special Interest Groups designed to inform attendees about the latest advances in environmental mutagenesis research. Several of the topics to be covered at this broad meeting will be of interest to the Department of Energy, Office of Science. The relevance of this meeting to the DOE derives from the fact that low dose radiation may represent one of t… more
Date: August 23, 2004
Creator: Samson, Leona D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

21st Century Locomotive Technology: Quarterly Technical Status Report 6 DOE/AL68284-TSR06

Description: Experimental work to map the performance of the High Pressure Common Rail (HPCR) system on a locomotive is in progress. The experimental trends agree with KIVA modeling predictions. Injection optimization is in progress. Electrically-assisted turbocharger modeling was used to study passenger locomotive performance improvements. Energy storage cycling life testing began, and an improved battery state algorithm was determined. The hybrid locomotive energy storage was prepared for energy managemen… more
Date: August 31, 2004
Creator: Salasoo, Lembit; Topinka, Jennifer & Houpt, Paul K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An abstract class loader for the SSP and its implementation in TL.

Description: The SSP is a hardware implementation of a subset of the JVM for use in high consequence embedded applications. In this context, a majority of the activities belonging to class loading, as it is defined in the specification of the JVM, can be performed statically. Static class loading has the net result of dramatically simplifying the design of the SSP as well as increasing its performance. Due to the high consequence nature of its applications, strong evidence must be provided that all aspects … more
Date: August 1, 2004
Creator: Wickstrom, Gregory Lloyd; Winter, Victor Lono (University of Nebraska at Omaha, Omaha, NE); Fraij, Fares (University of Texas at El Paso, El Paso, TX); Roach, Steve (University of Texas at El Paso, El Paso, TX) & Beranek, Jason (University of Nebraska at Omaha, Omaha, NE)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Accounting of the Power Balance for Neutral-beam-heated H-Mode Plasmas in NSTX

Description: A survey of the dependence of power balance on input power, shape, and plasma current was conducted for neutral-beam-heated plasmas in the National Spherical Torus Experiment (NSTX). Measurements of heat to the divertor strike plates and divertor and core radiation were taken over a wide range of plasma conditions. The different conditions were obtained by inducing a L-mode to H-mode transition, changing the divertor configuration [lower single null (LSN) vs. double-null (DND)] and conducting a… more
Date: August 9, 2004
Creator: Paul, S. F.; Maingi, R.; Soukhanovskii, V.; Kaye, S. M. & Kugel, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Active Vibration Isolation of an Unbalanced Machine Spindle

Description: Proper configurations of controls, sensors, and metrology technologies have enabled precision turning machines to achieve nanometer positioning. However, at this level of positioning resolution, vibration sources can become a limiting factor. One of the largest sources of vibration in a turning machine may be an unbalanced rotating spindle. In this paper, a system is implemented to actively cancel spindle unbalance forces. Specifically, to attenuate the spindle housing vibration using an active… more
Date: August 13, 2004
Creator: Hopkins, D J & Geraghty, P
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Adaptive 4-8 Texture Hierarchies

Description: We address the texture level-of-detail problem for extremely large surfaces such as terrain during real-time, view-dependent rendering. A novel texture hierarchy is introduced based on 4-8 refinement of raster tiles, in which the texture grids in effect rotate 45 degrees for each level of refinement. This hierarchy provides twice as many levels of detail as conventional quad-tree-style refinement schemes such as mipmaps, and thus provides per-pixel view-dependent filtering that is twice as clos… more
Date: August 2, 2004
Creator: Hwa, L M; Duchaineau, M A & Joy, K I
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Adaptive compensation of atmospheric turbulence utilizing an interferometric wave-front sensor and a high-resolution MEMS-based spatial light modulator

Description: Horizontal path correction of optical beam propagation presents a severe challenge to adaptive optics systems due to the short transverse coherence length and the high degree of scintillation incurred by propagation along these paths. The system presented operates with nearly monochromatic light. It does not require a global reconstruction of the phase, thereby eliminating issues with branch points and making its performance relatively unaffected by scintillation. The systems pixel count, 1024,… more
Date: August 12, 2004
Creator: Baker, K.; Stappaerts, E.; Gavel, D.; Tucker, J.; Silva, D.; Wilks, S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Adaptive Full-Spectrum Solar Energy Systems Cross-Cutting R&D on Adaptive Full-Spectrum Solar Energy Systems for More Efficient and Affordable Use of Solar Energy in Buildings and Hybrid Photobioreactors

Description: This RD&D project is a three year team effort to develop a hybrid solar lighting (HSL) system that transports daylight from a paraboloidal dish concentrator to a luminaire via a bundle of small core or a large core polymer fiber optics. The luminaire can be a device to distribute sunlight into a space for the production of algae or it can be a device that is a combination of daylighting and electric lighting for space/task lighting. In this project, the sunlight is collected using a one-met… more
Date: August 1, 2004
Creator: Wood, Byard D. & Muhs, Jeff D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Adaptive Importance Sampling Monte Carlo Simulation of Rare Transition Events

Description: We present an adaptive importance sampling method for quantifying the statistics of rare-event processes in atomistic simulations. The approach is based on an explicit evaluation of the probability that a sequence of states (or path) initiating in a state A leads to a reactive transition event to final state B. The importance sampling method seeks to bias the sampling of system trajectories such that those that contribute significantly, i.e. those that characterize reactive transitions, are gen… more
Date: August 30, 2004
Creator: de Koning, M; Cai, W; Sadigh, B; Oppelstrup, T; Kalos, M H & Bulatov, V V
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Adaptive Torque Control of Variable Speed Wind Turbines

Description: The primary focus of this work is a new adaptive controller that is designed to resemble the standard non-adaptive controller used by the wind industry for variable speed wind turbines below rated power. This adaptive controller uses a simple, highly intuitive gain adaptation law designed to seek out the optimal gain for maximizing the turbine's energy capture. It is designed to work even in real, time-varying winds.
Date: August 1, 2004
Creator: Johnson, K. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced simulation for analysis of critical infrastructure : abstract cascades, the electric power grid, and Fedwire.

Description: Critical Infrastructures are formed by a large number of components that interact within complex networks. As a rule, infrastructures contain strong feedbacks either explicitly through the action of hardware/software control, or implicitly through the action/reaction of people. Individual infrastructures influence others and grow, adapt, and thus evolve in response to their multifaceted physical, economic, cultural, and political environments. Simply put, critical infrastructures are complex ad… more
Date: August 1, 2004
Creator: Glass, Robert John, Jr.; Stamber, Kevin Louis & Beyeler, Walter Eugene
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Techniques for Reservoir Simulation and Modeling of Nonconventional Wells

Description: Nonconventional wells, which include horizontal, deviated, multilateral and ''smart'' wells, offer great potential for the efficient management of oil and gas reservoirs. These wells are able to contact larger regions of the reservoir than conventional wells and can also be used to target isolated hydrocarbon accumulations. The use of nonconventional wells instrumented with downhole inflow control devices allows for even greater flexibility in production. Because nonconventional wells can be ve… more
Date: August 20, 2004
Creator: Durlofsky, Louis J. & Aziz, Khalid
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advances in laser driven accelerator R&D

Description: Current activities (last few years) at different laboratories, towards the development of a laser wakefield accelerator (LWFA) are reviewed, followed by a more in depth discussion of results obtained at the L'OASIS laboratory of LBNL. Recent results on laser guiding of relativistically intense beams in preformed plasma channels are discussed. The observation of mono-energetic beams in the 100 MeV energy range, produced by a channel guided LWFA at LBNL, is described and compared to results obtai… more
Date: August 23, 2004
Creator: Leemans, Wim
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Aging, tumor suppression and cancer: High-wire act!

Description: Evolutionary theory holds that aging is a consequence of the declining force of natural selection with age. We discuss here the evidence that among the causes of aging in complex multicellular organisms, such as mammals, is the antagonistically pleiotropic effects of the cellular responses that protect the organism from cancer. Cancer is relatively rare in young mammals, owing in large measure to the activity of tumor suppressor mechanisms. These mechanisms either protect the genome from damage… more
Date: August 15, 2004
Creator: Campisi, Judith
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Alliance for Computational Science Collaboration HBCU Partnership at Fisk University. Final Report 2001

Description: Computational Science plays a big role in research and development in mathematics, science, engineering and biomedical disciplines. The Alliance for Computational Science Collaboration (ACSC) has the goal of training African-American and other minority scientists in the computational science field for eventual employment with the Department of Energy (DOE). The involvements of Historically Black Colleges and Universities (HBCU) in the Alliance provide avenues for producing future DOE African-Am… more
Date: August 16, 2004
Creator: Collins, W. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative Energy Saving Technology Analysis Report for Richland High School Renovation Project

Description: On July 8, 2004, L&S Engineering, Inc. submitted a technical assistance request to Pacific Northwest National Laboratory (PNNL) to help estimate the potential energy savings and cost effectiveness of the solar energy and daylighting design alternatives for Richland High School Renovation Project in Richland, WA. L&S Engineering expected PNNL to evaluate the potential energy savings and energy cost savings, the probable installation costs, incentives or grants to reduce the installed cos… more
Date: August 9, 2004
Creator: Liu, Bing
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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