Development of the University of Washington Biofuels and Biobased Chemicals Process Laboratory (open access)

Development of the University of Washington Biofuels and Biobased Chemicals Process Laboratory

The funding from this research grant enabled us to design and build a bioconversion steam explosion reactor and ancillary equipment such as a high pressure boiler and a fermenter to support the bioconversion process research. This equipment has been in constant use since its installation in 2012. Following are research projects that it has supported: • Investigation of novel chip production method in biofuels production • Investigation of biomass refining following steam explosion • Several studies on use of different biomass feedstocks • Investigation of biomass moisture content on pretreatment efficacy. • Development of novel instruments for biorefinery process control Having this equipment was also instrumental in the University of Washington receiving a $40 million grant from the US Department of Agriculture for biofuels development as well as several other smaller grants. The research that is being done with the equipment from this grant will facilitate the establishment of a biofuels industry in the Pacific Northwest and enable the University of Washington to launch a substantial biofuels and bio-based product research program.
Date: February 4, 2014
Creator: Gustafson, Richard
Object Type: Report
System: The UNT Digital Library
Laser Ionized Preformed Plasma at SLAC (open access)

Laser Ionized Preformed Plasma at SLAC

None
Date: February 4, 2014
Creator: Li, S. Z.; Adli, E.; Clarke, C. I.; Corde, S.; Edstrom, S. A.; Fisher, A. S. et al.
Object Type: Article
System: The UNT Digital Library
Microorganisms Associated with Hydrocarbon Contaminated Sites and Reservoirs for Microbially Enhanced Oil Recovery (MEOR) (open access)

Microorganisms Associated with Hydrocarbon Contaminated Sites and Reservoirs for Microbially Enhanced Oil Recovery (MEOR)

None
Date: February 4, 2014
Creator: Negri, M. C.
Object Type: Report
System: The UNT Digital Library
Novel QCD Phenomena and New Perspectives for Hadron Physics (open access)

Novel QCD Phenomena and New Perspectives for Hadron Physics

None
Date: February 4, 2014
Creator: Brodsky, Stanley J.
Object Type: Article
System: The UNT Digital Library
Report for closeout of DE-FC02-96SF21260 - United Steelworkers Former Worker Program - Screening Exams 1996-2006 (open access)

Report for closeout of DE-FC02-96SF21260 - United Steelworkers Former Worker Program - Screening Exams 1996-2006

Medical Screening and surveillance of former DOE workers
Date: February 4, 2014
Creator: Krutz, Mary & Corbin, Jonathan
Object Type: Report
System: The UNT Digital Library
Impact of Ice Nucleation Parameterizations on CAM5 Simulated Arctic Clouds and Radiation: A Sensitivity Study (open access)

Impact of Ice Nucleation Parameterizations on CAM5 Simulated Arctic Clouds and Radiation: A Sensitivity Study

None
Date: February 4, 2013
Creator: Xie, S; Liu, X; Zhao, C & Zhang, Y
Object Type: Article
System: The UNT Digital Library
Positron PWFA Simulations for FACET (open access)

Positron PWFA Simulations for FACET

None
Date: February 4, 2013
Creator: Adli, E.; Corde, S.; England, R. J.; Frederico, J. T.; Gessner, S. J.; Hogan, M. J. et al.
Object Type: Article
System: The UNT Digital Library
Science and Technology Review March 2013 (open access)

Science and Technology Review March 2013

None
Date: February 4, 2013
Creator: Poyneer, L A
Object Type: Report
System: The UNT Digital Library
2011 Plant Lipids: Structure, Metabolism, & Function Gordon Research Conference (open access)

2011 Plant Lipids: Structure, Metabolism, & Function Gordon Research Conference

This is the second Gordon Research Conference on 'Plant Lipids: Structure, Metabolism & Function'. It covers current topics in lipid structure, metabolism and function in eukaryotic photosynthetic organisms including seed plants, algae, mosses and ferns. Work in photosynthetic bacteria is considered as well as it serves the understanding of specific aspects of lipid metabolism in plants. Breakthroughs are discussed in research on plant lipids as diverse as glycerolipids, sphingolipids, lipids of the cell surface, isoprenoids, fatty acids and their derivatives. The program covers nine concepts at the forefront of research under which afore mentioned plant lipid classes are discussed. The goal is to integrate areas such as lipid signaling, basic lipid metabolism, membrane function, lipid analysis, and lipid engineering to achieve a high level of stimulating interaction among diverse researchers with interests in plant lipids. One Emphasis is on the dynamics and regulation of lipid metabolism during plant cell development and in response to environmental factors.
Date: February 4, 2011
Creator: Benning, Christopher
Object Type: Article
System: The UNT Digital Library
Alternative Sodium Recovery Technology—High Hydroxide Leaching: FY10 Status Report (open access)

Alternative Sodium Recovery Technology—High Hydroxide Leaching: FY10 Status Report

Boehmite leaching tests were carried out at NaOH concentrations of 10 M and 12 M, temperatures of 85°C and 60°C, and a range of initial aluminate concentrations. These data, and data obtained during earlier 100°C tests using 1 M and 5 M NaOH, were used to establish the dependence of the boehmite dissolution rate on hydroxide concentration, temperature, and initial aluminate concentration. A semi-empirical kinetic model for boehmite leaching was fitted to the data and used to calculate the NaOH additions required for leaching at different hydroxide concentrations. The optimal NaOH concentration for boehmite leaching at 85°C was estimated, based on minimizing the amount of Na that had to be added in NaOH to produce a given boehmite conversion.
Date: February 4, 2011
Creator: Mahoney, Lenna A.; Neiner, Doinita; Peterson, Reid A.; Rapko, Brian M.; Russell, Renee L. & Schonewill, Philip P.
Object Type: Report
System: The UNT Digital Library
Assessing Vulnerabilities, Risks, and Consequences of Damage to Critical Infrastructure (open access)

Assessing Vulnerabilities, Risks, and Consequences of Damage to Critical Infrastructure

Since the publication of 'Critical Foundations: Protecting America's Infrastructure,' there has been a keen understanding of the complexity, interdependencies, and shared responsibility required to protect the nation's most critical assets that are essential to our way of life. The original 5 sectors defined in 1997 have grown to 18 Critical Infrastructures and Key Resources (CIKR), which are discussed in the 2009 National Infrastructure Protection Plan (NIPP) and its supporting sector-specific plans. The NIPP provides the structure for a national program dedicated to enhanced protection and resiliency of the nation's infrastructure. Lawrence Livermore National Laboratory (LLNL) provides in-depth, multi-disciplinary assessments of threat, vulnerability, and consequence across all 18 sectors at scales ranging from specific facilities to infrastructures spanning multi-state regions, such as the Oil and Natural Gas (ONG) sector. Like many of the CIKR sectors, the ONG sector is comprised of production, processing, distribution, and storage of highly valuable and potentially dangerous commodities. Furthermore, there are significant interdependencies with other sectors, including transportation, communication, finance, and government. Understanding the potentially devastating consequences and collateral damage resulting from a terrorist attack or natural event is an important element of LLNL's infrastructure security programs. Our work began in the energy sector in the …
Date: February 4, 2011
Creator: Suski, N. & Wuest, C.
Object Type: Report
System: The UNT Digital Library
Design and Construction of a Gas Jet Target for RIB Experiements (open access)

Design and Construction of a Gas Jet Target for RIB Experiements

PNNL is now part of the JENSA collaboration to produce a gas jet system for the Facility for Rare Isotope Beams (FRIB). This document is a status report for the gas jet working group to be delivered to the FRIB scientific advisory council (SAC). It briefly describes PNNL’s capability at constructing cost efficient and high detection efficiency HPGe arrays.
Date: February 4, 2011
Creator: Greife, Uwe; Chipps, Kelly A.; Smith, Michael; Bardayan, Dan W.; Pain, Steven D.; Schmitt, Kyle et al.
Object Type: Report
System: The UNT Digital Library
Detailed Chemical Kinetic Model for H2 and H2/CO (Syngas) Mixtures at Elevated Pressure (open access)

Detailed Chemical Kinetic Model for H2 and H2/CO (Syngas) Mixtures at Elevated Pressure

None
Date: February 4, 2011
Creator: Keromnes, A; Metcalfe, W K; Donohoe, N; Curran, H J & Pitz, W J
Object Type: Article
System: The UNT Digital Library
The ecoresponsive genome of Daphnia pulex (open access)

The ecoresponsive genome of Daphnia pulex

This document provides supporting material related to the sequencing of the ecoresponsive genome of Daphnia pulex. This material includes information on materials and methods and supporting text, as well as supplemental figures, tables, and references. The coverage of materials and methods addresses genome sequence, assembly, and mapping to chromosomes, gene inventory, attributes of a compact genome, the origin and preservation of Daphnia pulex genes, implications of Daphnia's genome structure, evolutionary diversification of duplicated genes, functional significance of expanded gene families, and ecoresponsive genes. Supporting text covers chromosome studies, gene homology among Daphnia genomes, micro-RNA and transposable elements and the 46 Daphnia pulex opsins. 36 figures, 50 tables, 183 references.
Date: February 4, 2011
Creator: Colbourne, John K.; Pfrender, Michael E.; Gilbert, Donald; Thomas, W. Kelley; Tucker, Abraham; Oakley, Todd H. et al.
Object Type: Article
System: The UNT Digital Library
Fourth Quarter FY 2008 and Final Report (open access)

Fourth Quarter FY 2008 and Final Report

None
Date: February 4, 2011
Creator: Weston, Frederick
Object Type: Text
System: The UNT Digital Library
Hydrogen Storage at Ambient Temperature by the Spillover Mechanism (open access)

Hydrogen Storage at Ambient Temperature by the Spillover Mechanism

The goal of this project was to develop new nanostructured sorbent materials, using the hydrogen spillover mechanism that could meet the DOE 2010 system targets for on-board vehicle hydrogen storage. Hydrogen spillover may be broadly defined as the transport (i.e., via surface diffusion) of dissociated hydrogen adsorbed or formed on a first surface onto another surface. The first surface is typically a metal (that dissociates H2) and the second surface is typically the support on which the metal is doped. Hydrogen spillover is a well documented phenomenon in the catalysis literature, and has been known in the catalysis community for over four decades, although it is still not well understood.1, 2 Much evidence has been shown in the literature on its roles played in catalytic reactions. Very little has been studied on hydrogen storage by spillover at ambient temperature. However, it is also known to occur at such temperature, e.g., direct evidence has been shown for spillover on commercial fuel-cell, highly dispersed Pt/C, Ru/C and PtRu/C catalysts by inelastic neutron scattering.3 To exploit spillover for storage, among the key questions are whether spillover is reversible at ambient temperature and if the adsorption (refill) and desorption rates at ambient temperature are …
Date: February 4, 2011
Creator: Yang , Ralph T.
Object Type: Report
System: The UNT Digital Library
National Energy Efficiency Evaluation, Measurement and Verification (EM&V) Standard: Scoping Study of Issues and Implementation Requirements (open access)

National Energy Efficiency Evaluation, Measurement and Verification (EM&V) Standard: Scoping Study of Issues and Implementation Requirements

This report is a scoping study that identifies issues associated with developing a national evaluation, measurement and verification (EM&V) standard for end-use, non-transportation, energy efficiency activities. The objectives of this study are to identify the scope of such a standard and define EM&V requirements and issues that will need to be addressed in a standard. To explore these issues, we provide and discuss: (1) a set of definitions applicable to an EM&V standard; (2) a literature review of existing guidelines, standards, and 'initiatives' relating to EM&V standards as well as a review of 'bottom-up' versus 'top-down' evaluation approaches; (3) a summary of EM&V related provisions of two recent federal legislative proposals (Congressman Waxman's and Markey's American Clean Energy and Security Act of 2009 and Senator Bingaman's American Clean Energy Leadership Act of 2009) that include national efficiency resource requirements; (4) an annotated list of issues that that are likely to be central to, and need to be considered when, developing a national EM&V standard; and (5) a discussion of the implications of such issues. There are three primary reasons for developing a national efficiency EM&V standard. First, some policy makers, regulators and practitioners believe that a national standard would streamline …
Date: February 4, 2011
Creator: Schiller Consulting, Inc.; Schiller, Steven R.; Goldman, Charles A. & Galawish, Elsia
Object Type: Report
System: The UNT Digital Library
Nuclear Resonance Fluorescence for Safeguards Applications (open access)

Nuclear Resonance Fluorescence for Safeguards Applications

In nuclear resonance fluorescence (NRF) measurements, resonances are excited by an external photon beam leading to the emission of {gamma} rays with specific energies that are characteristic of the emitting isotope. The promise of NRF as a non-destructive analysis technique (NDA) in safeguards applications lies in its potential to directly quantify a specific isotope in an assay target without the need for unfolding the combined responses of several fissile isotopes as often required by other NDA methods. The use of NRF for detection of sensitive nuclear materials and other contraband has been researched in the past. In the safeguards applications considered here one has to go beyond mere detection and precisely quantify the isotopic content, a challenge that is discussed throughout this report. Basic NRF measurement methods, instrumentation, and the analytical calculation of NRF signal strengths are described in Section 2. Well understood modeling and simulation tools are needed for assessing the potential of NRF for safeguards and for designing measurement systems. All our simulations were performed with the radiation transport code MCNPX, a code that is widely used in the safeguards community. Our initial studies showed that MCNPX grossly underestimated the elastically scattered background at backwards angles due to …
Date: February 4, 2011
Creator: Ludewigt, Bernhard A.; Quiter, Brian J. & Ambers, Scott D.
Object Type: Report
System: The UNT Digital Library
Ridge-Valley Graphs: Combinatorial Ridge Detection Using Jacobi Sets (open access)

Ridge-Valley Graphs: Combinatorial Ridge Detection Using Jacobi Sets

None
Date: February 4, 2011
Creator: Norgard, G & Bremer, P T
Object Type: Report
System: The UNT Digital Library
Tantalum Disk Impacts on Tantalum Faced LX-04 Targets (open access)

Tantalum Disk Impacts on Tantalum Faced LX-04 Targets

None
Date: February 4, 2011
Creator: Poormon, K L & Vandersall, K S
Object Type: Report
System: The UNT Digital Library
Assessment and Mitigation of Electromagnetic Pulse (EMP) Impacts at Short-pulse Laser Facilities (open access)

Assessment and Mitigation of Electromagnetic Pulse (EMP) Impacts at Short-pulse Laser Facilities

The National Ignition Facility (NIF) will be impacted by electromagnetic pulse (EMP) during normal long-pulse operation, but the largest impacts are expected during short-pulse operation utilizing the Advanced Radiographic Capability (ARC). Without mitigation these impacts could range from data corruption to hardware damage. We describe our EMP measurement systems on Titan and NIF and present some preliminary results and thoughts on mitigation.
Date: February 4, 2010
Creator: Brown, Jr., C G; Bond, E; Clancy, T; Dangi, S; Eder, D C; Ferguson, W et al.
Object Type: Article
System: The UNT Digital Library
DETERMINATION OF REPORTABLE RADIONUCLIDES FOR DWPF SLUDGE BATCH 5 (MACROBATCH 6) (open access)

DETERMINATION OF REPORTABLE RADIONUCLIDES FOR DWPF SLUDGE BATCH 5 (MACROBATCH 6)

The Waste Acceptance Product Specifications (WAPS) 1.2 require that ''The Producer shall report the inventory of radionuclides (in Curies) that have half-lives longer than 10 years and that are, or will be, present in concentrations greater than 0.05 percent of the total inventory for each waste type indexed to the years 2015 and 3115''. As part of the strategy to comply with WAPS 1.2, the Defense Waste Processing Facility (DWPF) will report for each waste type, all radionuclides (with half-lives greater than 10 years) that have concentrations greater than 0.01 percent of the total inventory from time of production through the 1100 year period from 2015 through 3115. The initial listing of radionuclides to be included is based on the design-basis glass as identified in the Waste Form Compliance Plan (WCP) and Waste Form Qualification Report (WQR). However, it is required that this list be expanded if other radionuclides with half-lives greater than 10 years are identified that may meet the greater than 0.01% criterion for Curie content. Specification 1.6 of the WAPS, International Atomic Energy Agency (IAEA) Safeguards Reporting for High Level Waste (HLW), requires that the ratio by weights of the following uranium and plutonium isotopes be reported: …
Date: February 4, 2010
Creator: Bannochie, C.; Bibler, N. & Diprete, D.
Object Type: Report
System: The UNT Digital Library
Discrete Sampling Test Plan for the 200-BP-5 Operable Unit (open access)

Discrete Sampling Test Plan for the 200-BP-5 Operable Unit

The Discrete Groundwater Sampling Project is conducted by the Pacific Northwest National Laboratory (PNNL) on behalf of CH2M HILL Plateau Remediation Company. The project is focused on delivering groundwater samples from proscribed horizons within select groundwater wells residing in the 200-BP-5 Operable Unit (200-BP-5 OU) on the Hanford Site. This document provides the scope, schedule, methodology, and other details of the PNNL discrete sampling effort.
Date: February 4, 2010
Creator: Sweeney, Mark D.
Object Type: Report
System: The UNT Digital Library