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Transpired Air Collectors - Ventilation Preheating

Description: Many commercial and industrial buildings have high ventilation rates. Although all that fresh air is great for indoor air quality, heating it can be very expensive. This short (2-page) fact sheet describes a technology available to use solar energy to preheat ventilation air and dramatically reduce utility bills.
Date: June 22, 2006
Creator: Christensen, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of Semi-Stochastic Algorithm for Optimizing Alloy Composition of High-Temperature Austenitic Stainless Steels (H-Series) for Desired Mechanical and Corrosion Properties.

Description: The goal of this project was to adapt and use an advanced semi-stochastic algorithm for constrained multiobjective optimization and combine it with experimental testing and verification to determine optimum concentrations of alloying elements in heat-resistant and corrosion-resistant H-series stainless steel alloys that will simultaneously maximize a number of alloy's mechanical and corrosion properties.
Date: June 1, 2006
Creator: Dulikravich, George S.; Sikka, Vinod K. & Muralidharan, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Search for Resonances in the Photoproduction of Proton-Antiproton Pairs

Description: Results are reported on the reaction {gamma}p {yields} p{bar p}p with beam energy in the range 4.8-5.5 GeV. The data were collected at the Thomas Jefferson National Accelerator Facility in CLAS experiment E01-017(G6C). The focus of this study is an understanding of the mechanisms of photoproduction of proton-antiproton pairs, and to search for intermediate resonances, both narrow and broad, which decay to p{bar p}. The total measured cross section in the photon energy range 4.8-5.5 GeV is {sigm… more
Date: June 30, 2006
Creator: Stokes, Burnham
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

STOMP Subsurface Transport Over Multiple Phases, Version 4.0, User’s Guide

Description: This guide describes the general use, input file formatting, compilation and execution of the STOMP (Subsurface Transport Over Multiple Phases) simulator, a scientific tool for analyzing single and multiple phase subsurface flow and transport. A description of the simulator’s governing equations, constitutive functions and numerical solution algorithms are provided in a companion theory guide. In writing these guides for the STOMP simulator, the authors have assumed that the reader comprehends … more
Date: June 9, 2006
Creator: White, Mark D. & Oostrom, Martinus
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Indoor-Outdoor Air Leakage of Apartments and Commercial Buildings

Description: We compiled and analyzed available data concerning indoor-outdoor air leakage rates and building leakiness parameters for commercial buildings and apartments. We analyzed the data, and reviewed the related literature, to determine the current state of knowledge of the statistical distribution of air exchange rates and related parameters for California buildings, and to identify significant gaps in the current knowledge and data. Very few data were found from California buildings, so we compiled… more
Date: June 1, 2006
Creator: Price, P. N.; Shehabi, A.; Chan, R. W. & Gadgil, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Public Health Benefits of End-Use Electrical Energy Efficiency in California: An Exploratory Study

Description: This study assesses for California how increasing end-use electrical energy efficiency from installing residential insulation impacts exposures and disease burden from power-plant pollutant emissions. Installation of fiberglass attic insulation in the nearly 3 million electricity-heated homes throughout California is used as a case study. The pollutants nitrous oxides (NO{sub x}), sulfur dioxide (SO{sub 2}), fine particulate matter (PM2.5), benzo(a)pyrene, benzene, and naphthalene are selected … more
Date: June 1, 2006
Creator: McKone, Thomas E. & Lobscheid, A.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Continuous Profiles of Cloud Microphysical Properties for the Fixed Atmospheric Radiation Measurement Sites

Description: The Atmospheric Radiation Measurement (ARM) Program defined a specific metric for the third quarter of Fiscal Year 2006 to produce and refine a one-year continuous time series of cloud microphysical properties based on cloud radar measurements for each of the fixed ARM sites. To accomplish this metric, we used a combination of recently developed algorithms that interpret radar reflectivity profiles, lidar backscatter profiles, and microwave brightness temperatures into the context of the underl… more
Date: June 1, 2006
Creator: Jensen, M. & Jensen, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery from the Complex Monterey Reservoir of South Ellwood Field, Offshore California

Description: Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to over 10,000,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the o… more
Date: June 30, 2006
Creator: Horner, Steve & Ershaghi, Iraj
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

TECHNIQUES FOR THE STUDY OF THE STRUCTURAL PROPERTIES.

Description: The evolution of our understanding of the behavior of oxide nanostructures depends heavily on the structural information obtained from a wide range of physical methods traditionally used in solid state physics, surface science and inorganic chemistry. In this chapter, we describe several techniques that are useful for the characterization of the structural properties of oxide nanostructures: X-ray diffraction (XRD) and scattering, X-ray absorption fine structure (XAFS), Raman spectroscopy, tran… more
Date: June 30, 2006
Creator: Fernandez-Garcia, M.; Rodriguez, J. A.; Martinez-Arias, A. & Hanson, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DETERMINATION OF LIQUID FILM THICKNESS FOLLOWING DRAINING OF CONTACTORS, VESSELS, AND PIPES IN THE MCU PROCESS

Description: The Department of Energy (DOE) identified the caustic side solvent extraction (CSSX) process as the preferred technology to remove cesium from radioactive waste solutions at the Savannah River Site (SRS). As a result, Washington Savannah River Company (WSRC) began designing and building a Modular CSSX Unit (MCU) in the SRS tank farm to process liquid waste for an interim period until the Salt Waste Processing Facility (SWPF) begins operations. Both the solvent and the strip effluent streams cou… more
Date: June 6, 2006
Creator: Poirier, M; Fernando Fondeur, F & Samuel Fink, S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Distributed Generation Investment by a Microgrid UnderUncertainty

Description: This paper examines a California-based microgrid s decision to invest in a distributed generation (DG) unit that operates on natural gas. While the long-term natural gas generation cost is stochastic, we initially assume that the microgrid may purchase electricity at a fixed retail rate from its utility. Using the real options approach, we find natural gas generating cost thresholds that trigger DG investment. Furthermore, the consideration of operational flexibility by the microgrid accelerate… more
Date: June 16, 2006
Creator: Siddiqui, Afzal & Marnay, Chris
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Impact of Distributed Energy Resources on the Reliability of Critical Telecommunications Facilities: Preprint

Description: This paper documents a probabilistic risk assessment of existing and alternative power supply systems at a large telecommunications office. The analysis characterizes the increase in the reliability of power supply through the use of two alternative power configurations. Failures in the power systems supporting major telecommunications service nodes are a main contributor to significant telecommunications outages. A logical approach to improving the robustness of telecommunication facilities is… more
Date: June 1, 2006
Creator: Robinson, D. G.; Arent, D. J. & Johnson, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Validation experiments to determine radiation partitioning of heat flux to an object in a fully turbulent fire.

Description: It is necessary to improve understanding and develop validation data of the heat flux incident to an object located within the fire plume for the validation of SIERRA/ FUEGO/SYRINX fire and SIERRA/CALORE. One key aspect of the validation data sets is the determination of the relative contribution of the radiative and convective heat fluxes. To meet this objective, a cylindrical calorimeter with sufficient instrumentation to measure total and radiative heat flux had been designed and fabricated.… more
Date: June 1, 2006
Creator: Ricks, Allen; Blanchat, Thomas K. & Jernigan, Dann A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low-Frequency Electromagnetic Backscatter from Buried Tunnels

Description: This progress report is submitted under a contract between the Special Project Office of DARPA and Lawrence Livermore National Laboratory. The Project Manager at DARPA is Dr. Michael Zatman. Our purpose under this contract is to investigate interactions between electromagnetic waves and a class of buried targets located in multilayered media with rough interfaces. In this report, we investigate three preliminary problems. In each case our specific goal is to understand various aspects of the el… more
Date: June 21, 2006
Creator: Casey, K & Pao, H
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An upper limit to the photon fraction in cosmic rays above 10**19-eV from the Pierre Auger Observatory

Description: An upper limit of 16% (at 95% c.l.) is derived for the photon fraction in cosmic rays with energies above 10{sup 19} eV, based on observations of the depth of shower maximum performed with the hybrid detector of the Pierre Auger Observatory. This is the first such limit on photons obtained by observing the fluorescence light profile of air showers. This upper limit confirms and improves on previous results from the Haverah Park and AGASA surface arrays. Additional data recorded with the Auger s… more
Date: June 1, 2006
Creator: Abraham, J.; Aglietta, M.; Aguirre, C.; Allard, D.; Allekotte, I.; Allison, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Data Production Models for the CDF Experiment

Description: The data production for the CDF experiment is conducted on a large Linux PC farm designed to meet the needs of data collection at a maximum rate of 40 MByte/sec. We present two data production models that exploits advances in computing and communication technology. The first production farm is a centralized system that has achieved a stable data processing rate of approximately 2 TByte per day. The recently upgraded farm is migrated to the SAM (Sequential Access to data via Metadata) data handl… more
Date: June 1, 2006
Creator: Antos, J.; Babik, M.; Benjamin, D.; Cabrera, S.; Chan, A. W.; Chen, Y. C. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Surface Analysis

Description: In the Surface Analysis group, within the National Center for Photovoltaic's Measurements and Characterization Division, we use surface analytical techniques help to determine the chemical, elemental, and molecular composition, and electronic structure of material surfaces and interfaces. The properties of the surface and outer few micrometers of a material often control the electrical, chemical, or mechanical properties of that material--hence, this region is of extreme importance. Our techniq… more
Date: June 1, 2006
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Query-Driven Network Flow Data Analysis and Visualization

Description: This document is the final report for a WFO agreement between LBNL and the National Visualization and Analytics Center at PNNL. The document lists project milestones, their completion date, research results and findings. In brief, the project focuses on testing the hypothesis that the duty cycle in scientific discovery can be reduced by combining visual analytics interfaces, novel visualization techniques and scientific data management technology.
Date: June 14, 2006
Creator: Bethel, E. Wes
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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