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Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Lignocellulose Recalcitrance Screening by Integrated High Throughput Hydrothermal Pretreatment and Enzymatic Saccharification  

SciTech Connect

We report a novel 96-well multiplate reactor system for comparative analysis of lignocellulose recalcitrance via integrated hydrothermal pretreatment and enzymatic saccharification. The system utilizes stackable nickel/gold-plated 96-well aluminum reactor plates, a clamping device fit to a standard Parr reactor, and robotics for efficient liquids and solids handling. A capacity of 20 plates allows up to 1,920 separate hydrothermal reactions per run. Direct and rapid analysis of key end-products, glucose and xylose, is facilitated by the use of glucose oxidase/peroxidase and xylose dehydrogenase-linked assays. To demonstrate efficacy, a set of 755 poplar core samples from the US Department of Energy's BioEnergy Science Center was tested. Total sugar release ranged from 0.17 to 0.64 g/g of biomass and correlated strongly with the ratio of syringyl to guaiacyl lignins in the samples. Variance among sample replicates was sufficiently minimal to permit clear assignment of differences in recalcitrance throughout this large sample set.

Selig, M. J.; Tucker, M. P.; Sykes, R. W.; Reichel, K. L.; Brunecky, R.; Himmel, M. E.; Davis, M. F.; Decker, S. R.

2010-04-01T23:59:59.000Z

2

High throughput optical scanner  

SciTech Connect

A scanning apparatus is provided to obtain automated, rapid and sensitive scanning of substrate fluorescence, optical density or phosphorescence. The scanner uses a constant path length optical train, which enables the combination of a moving beam for high speed scanning with phase-sensitive detection for noise reduction, comprising a light source, a scanning mirror to receive light from the light source and sweep it across a steering mirror, a steering mirror to receive light from the scanning mirror and reflect it to the substrate, whereby it is swept across the substrate along a scan arc, and a photodetector to receive emitted or scattered light from the substrate, wherein the optical path length from the light source to the photodetector is substantially constant throughout the sweep across the substrate. The optical train can further include a waveguide or mirror to collect emitted or scattered light from the substrate and direct it to the photodetector. For phase-sensitive detection the light source is intensity modulated and the detector is connected to phase-sensitive detection electronics. A scanner using a substrate translator is also provided. For two dimensional imaging the substrate is translated in one dimension while the scanning mirror scans the beam in a second dimension. For a high throughput scanner, stacks of substrates are loaded onto a conveyor belt from a tray feeder.

Basiji, David A. (Seattle, WA); van den Engh, Gerrit J. (Seattle, WA)

2001-01-01T23:59:59.000Z

3

High-Throughput Screening Techniques  

NLE Websites -- All DOE Office Websites (Extended Search)

Throughput Throughput Screening Techniques for Biomass Conversion Stephen R. Decker & Roman Brunecky & Melvin P. Tucker & Michael E. Himmel & Michael J. Selig Published online: 14 October 2009 # US Government 2009 Abstract High-throughput (HTP) screening of biomass or biomass-degrading enzymes, regardless of the desired outcome, is fraught with obstacles and challenges not typically faced in more traditional biotechnology. The enzyme systems are complex and synergistic and the substrate is highly heterogeneous, insoluble, and difficult to dispense. Digestions are often carried out for days at temperatures of 50°C or higher, leading to significant challenges regarding evaporation control in small well volumes. Furthermore, it is often desirable to condition or "pretreat" the biomass at extreme temperatures and/or pH to enhance enzyme digestibility.

4

Co-hydrolysis of hydrothermal and dilute acid pretreated Populus slurries to support development of a high-throughput pretreatment system  

E-Print Network (OSTI)

Abstract Background: The BioEnergy Science Center (BESC)production. Background The BioEnergy Science Center (BESC)abbreviations used BESC: BioEnergy Science Center; HT: high-

Studer, Michael H; Brethauer, Simone; DeMartini, Jaclyn D; McKenzie, Heather L; Wyman, Charles E

2011-01-01T23:59:59.000Z

5

High throughput protein production screening  

DOE Patents (OSTI)

Methods, compositions, and kits for the cell-free production and analysis of proteins are provided. The invention allows for the production of proteins from prokaryotic sequences or eukaryotic sequences, including human cDNAs using PCR and IVT methods and detecting the proteins through fluorescence or immunoblot techniques. This invention can be used to identify optimized PCR and WT conditions, codon usages and mutations. The methods are readily automated and can be used for high throughput analysis of protein expression levels, interactions, and functional states.

Beernink, Peter T. (Walnut Creek, CA); Coleman, Matthew A. (Oakland, CA); Segelke, Brent W. (San Ramon, CA)

2009-09-08T23:59:59.000Z

6

Application of high throughput pretreatment and cohydrolysis...  

NLE Websites -- All DOE Office Websites (Extended Search)

1 Biofuels and Environmental Biotechnology Biotechnology and Bioengineering DOI 10.1002bit.24951 Application of High Throughput Pretreatment and Co-Hydrolysis System to...

7

High-throughput in vivo vertebrate screening  

E-Print Network (OSTI)

We demonstrate a high-throughput platform for cellular-resolution in vivo chemical and genetic screens on zebrafish larvae. The system automatically loads zebrafish from reservoirs or multiwell plates, and positions and ...

Pardo-Martin, Carlos

8

High throughput 3-D tissue cytometry  

E-Print Network (OSTI)

This thesis presents the ongoing technological development of high throughput 3-D tissue cytometry.and its applications in biomedicine. 3-D tissue cytometry has been developed in our laboratory based on two-photon microscopy ...

Kwon, Hyuk-Sang, 1971-

2007-01-01T23:59:59.000Z

9

Data Management for High-Throughput Genomics  

E-Print Network (OSTI)

Today's sequencing technology allows sequencing an individual genome within a few weeks for a fraction of the costs of the original Human Genome project. Genomics labs are faced with dozens of TB of data per week that have to be automatically processed and made available to scientists for further analysis. This paper explores the potential and the limitations of using relational database systems as the data processing platform for high-throughput genomics. In particular, we are interested in the storage management for high-throughput sequence data and in leveraging SQL and user-defined functions for data analysis inside a database system. We give an overview of a database design for high-throughput genomics, how we used a SQL Server database in some unconventional ways to prototype this scenario, and we will discuss some initial findings about the scalability and performance of such a more database-centric approach.

Roehm, Uwe

2009-01-01T23:59:59.000Z

10

Robust regression for high throughput drug screening  

Science Conference Proceedings (OSTI)

Effective analysis of high throughput screening (HTS) data requires automation of dose-response curve fitting for large numbers of datasets. Datasets with outliers are not handled well by standard non-linear least squares methods, and manual outlier ... Keywords: Agonist activity, Dose-response curve, HTS, IRLS, M-estimation, Robust regression

Igor Fomenko; Mark Durst; David Balaban

2006-04-01T23:59:59.000Z

11

High Throughput/Combinatorial Screening of Hydrogen Storage Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

Workshop HIGH THROUGHPUTCOMBINATORIAL SCREENING OF HYDROGEN STORAGE MATERIALS June 26, 2007 Tom Boussie Symyx Technologies Symyx develops and applies proprietary high-throughput...

12

High-Throughput Approaches to Optimization of Crystal ...  

high-throughput approaches to optimization of crystal silicon surface passivation and heterojunction solar cells qi wanga, matt page, yanfa yan, and ...

13

Potential of High-Throughput Experimentation with Ammonia Borane...  

NLE Websites -- All DOE Office Websites (Extended Search)

of High-Throughput Experimentation with Ammonia Borane Solid Hydrogen Storage Materials Jonathan L. Male Pacific Northwest National Laboratory June 26, 2006 US Department of Energy...

14

Review: Clustering of high throughput gene expression data  

Science Conference Proceedings (OSTI)

High throughput biological data need to be processed, analyzed, and interpreted to address problems in life sciences. Bioinformatics, computational biology, and systems biology deal with biological problems using computational methods. Clustering is ... Keywords: Bioinformatics, Clustering, Gene expression data, High throughput data, Microarrays

Harun Pirim; Burak Ek?Io?Lu; Andy D. Perkins; ÇEtin YüCeer

2012-12-01T23:59:59.000Z

15

NIST Study Finds a Decade of High-Payoff, High-Throughput ...  

Science Conference Proceedings (OSTI)

NIST Study Finds a Decade of High-Payoff, High-Throughput Research. For Immediate Release: May 20, 2009. ...

2013-06-12T23:59:59.000Z

16

High throughput optical sensor arrays for drug screening  

E-Print Network (OSTI)

In the world of drug discovery, high throughput whole cell assays are a critical step in discovering therapeutically relevant drug compounds [1]. This report details the development of several novel sensor systems capable ...

Harjes, Daniel I

2006-01-01T23:59:59.000Z

17

High-throughput vertebrate total analysis/screening platform  

E-Print Network (OSTI)

High-throughput screening (HTS) is seen as one of the most promising technologies to facilitate biomedical studies and pharmaceutical discoveries. Although large varieties of in vitro HTS technologies have opened great ...

Chang, Tsung-Yao, Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

18

High-Throughput/Combinatorial Techniques in Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D Ned Stetson, Larry Blair 1 , Grace Ordaz, Carole Read, George Thomas 2 , and Sunita Satyapal Suite 900,...

19

Fuel Cell Technologies Office: High-Throughput/Combinatorial...  

NLE Websites -- All DOE Office Websites (Extended Search)

High-ThroughputCombinatorial Techniques in Hydrogen Storage Materials R&D On June 26, 2007 the Hydrogen Storage Program of the U.S. Department of Energy (DOE) held a one-day...

20

Development and optimization of high-throughput zebrafish screening platform  

E-Print Network (OSTI)

The high-throughput zebrafish screening platform is a revolutionary tool that enables subcellular precision in vivo whole animal screening of Danio Rerio. It can perform laser surgery and/or imaging in less than twenty ...

Koo, Bryan Kyo

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Robust, High-Throughput Analysis of Protein Structures  

NLE Websites -- All DOE Office Websites (Extended Search)

Robust, High-Throughput Analysis of Protein Structures Print Robust, High-Throughput Analysis of Protein Structures Print Scientists have developed a fast and efficient way to determine the structure of proteins, shortening a process that often takes years into a matter of days. The Structurally Integrated BiologY for Life Sciences (SIBYLS) beamline at the ALS has implemented the world's highest-throughput biological-solution x-ray scattering beamline enabling genomic-scale protein-structure characterization. Coupling brilliant x rays from one of the superconducting bend magnets at the ALS to liquid-handling robotics has enabled the collection of 96 samples in 4 hours. Importantly, the sample format and the amount of material required are practical for most biological problems. The beamline's high-throughput capability is set to have a large impact on many fields that require genomic-scale information, such as Berkeley Lab's bioenergy efforts and cancer biology studies.

22

Unstructured Data Analysis of Streaming Video Using Parallel, High-Throughput Algorithms  

Science Conference Proceedings (OSTI)

This paper describes the methods, algorithms, and implementation of high-throughput video processing.

Trease, Harold E.; Carlson, Timothy S.; Moony, Ryan; Farber, Robert M.; Trease, Lynn L.

2007-12-31T23:59:59.000Z

23

Scaling up transit priority modelling using high-throughput computing  

Science Conference Proceedings (OSTI)

The optimization of Road Space Allocation (RSA) from a network perspective is computationally challenging. An analogue to the Network Design Problem (NDP), RSA can be classified NP-hard. In large-scale networks when the number of alternatives increases ... Keywords: genetic algorithm, high-performance computing, high-throughput computing, transport modelling

Mahmoud Mesbah, Majid Sarvi, Jefferson Tan, Fateme Karimirad

2012-01-01T23:59:59.000Z

24

Area-efficient high-throughput MAP decoder architectures  

Science Conference Proceedings (OSTI)

Iterative decoders such as turbo decoders have become integral components of modern broadband communication systems because of their ability to provide substantial coding gains. A key computational kernel in iterative decoders is the maximum a posteriori ... Keywords: area efficient, block-interleaved pipelining, high throughput, parallel processing, pipeline, symbol-based decoding, turbo decoder, turbo equalizer

Seok-Jun Lee; Naresh R. Shanbhag; Andrew C. Singer

2005-08-01T23:59:59.000Z

25

Directed Enzyme Evolution and High-Throughput Screening  

E-Print Network (OSTI)

3 Directed Enzyme Evolution and High-Throughput Screening Michael J. McLachlan,1 Ryan P. Sullivan2, the tailoring of an enzyme can still be accomplished through the second route: directed evolution. Biocatalysis John Wiley & Sons Asia (Pte) Ltd. ISBN: 978-0-470-82314-9 #12;Directed evolution is the general term

Zhao, Huimin

26

A GPU-based high-throughput image retrieval algorithm  

Science Conference Proceedings (OSTI)

With the development of Internet and cloud computing, multimedia data, such as images and videos, has become one of the most common data types being processed. As the scale of multimedia data being still increasing, it is vitally important to efficiently ... Keywords: GPU-based, SURF, high throughput, image retrieval

Feiwen Zhu; Peng Chen; Donglei Yang; Weihua Zhang; Haibo Chen; Binyu Zang

2012-03-01T23:59:59.000Z

27

High-Throughput Transfer Imprinting for Organic Semiconductors  

E-Print Network (OSTI)

Development of nanoimprint lithography(NIL) has enabled high-throughput and high-resolution patterning over the optical limitation. In recent years, thermal nanoimprint has been used to directly pattern functional materials such as organic semiconductors because heat and pressure used in thermal nanoimprint do not damage functional materials. However, issues such as residual layer removal and mold contamination still limit the application of nanoimprint for organic semiconductor patterning. In this work, nanoimprint-based transfer imprinting of organic semiconductor is studied. In the same time the suggested technique is simulated with COMSOL multi-physics simulator to understand its mechanism. This transfer printing technique utilize thermal nanoimprint scheme to enable residual-layer-free patterning of organic semiconductors without mold contamination. The transfer imprinting technique is amenable to roll-to-roll process for high-throughput patterning of organic semiconductors for low-cost organic electronic applications.

Choo, Gihoon

2013-08-01T23:59:59.000Z

28

Design of a High-Throughput Plasma-Processing System  

DOE Green Energy (OSTI)

Sandia National Laboratories has demonstrated significant performance gains in crystalline silicon solar cell technology through the use of plasma-processing for the deposition of silicon nitride by Plasma Enhanced Chemical Vapor Deposition (PECVD), plasma-hydrogenation of the nitride layer, and reactive-ion etching of the silicon surface prior to the deposition to decrease the reflectivity of the surface. One of the major problems of implementing plasma processing into a cell production line is the batch configuration and/or low throughput of the systems currently available. This report describes the concept of a new in-line plasma processing system that could meet the industrial requirements for a high-throughput and cost effective solution for mass production of solar cells.

Darkazalli, Ghazi; Matthei, Keith; Ruby, Douglas S.

1999-07-20T23:59:59.000Z

29

Methods and technologies for high-throughput and high-content small animal screening  

E-Print Network (OSTI)

High-throughput and high-content screening (HTS and HCS) of whole animals requires their immobilization for high-resolution imaging and manipulation. Here we present methods to enable HTS and HCS of the nematode Caenorhabditis ...

Rohde, Christopher, 1979-

2012-01-01T23:59:59.000Z

30

High-temperature hydrothermal systems in West Yunnan Province, China  

SciTech Connect

There are more than 660 thermal springs in West Yunnan Province, 30 of which are high-temperature hydrothermal systems with reservoir temperatures above 150/sup 0/C. All thermal springs in West Yunnan are under the control of tectonics, most of them distributed at anticlinoria of metamorphic rocks and granites. This paper discusses the relationship between thermal areas and tectonics, the correlation between thermal springs in West Yunnan and North Thailand, and the geothermal prospects in West Yunnan.

Laio, Z.; Tong, W.; Liu, S.; Zhao, F.

1986-01-01T23:59:59.000Z

31

High Throughput Pretreatment and Enzyme Hydrolysis of Biomass: Screening Recalcitrance in Large Sample Populations (Presentation)  

DOE Green Energy (OSTI)

Presentation on the execution of the first high-throughput thermochemical pretreatment/enzyme digestion pipeline for screening biomass for recalcitrance.

Decker, S. R.

2010-10-01T23:59:59.000Z

32

HIGH-THROUGHPUT/COMBINATORIAL TECHNIQUES IN HYDROGEN STORAGE MATERIALS R&D WORKSHOP  

E-Print Network (OSTI)

HIGH-THROUGHPUT/COMBINATORIAL TECHNIQUES IN HYDROGEN STORAGE MATERIALS R&D WORKSHOP U.S. Department of Energy Office of Hydrogen, Fuel Cells and Infrastructure Technologies June 26, 2007 Bethesda, MD On June 26, 2007, DOE's Hydrogen Storage Program held a one-day High- Throughput/Combinatorial Techniques

33

High Throughput, Continuous, Mass Production of Photovoltaic Modules  

DOE Green Energy (OSTI)

AVA Solar has developed a very low cost solar photovoltaic (PV) manufacturing process and has demonstrated the significant economic and commercial potential of this technology. This I & I Category 3 project provided significant assistance toward accomplishing these milestones. The original goals of this project were to design, construct and test a production prototype system, fabricate PV modules and test the module performance. The original module manufacturing costs in the proposal were estimated at $2/Watt. The objectives of this project have been exceeded. An advanced processing line was designed, fabricated and installed. Using this automated, high throughput system, high efficiency devices and fully encapsulated modules were manufactured. AVA Solar has obtained 2 rounds of private equity funding, expand to 50 people and initiated the development of a large scale factory for 100+ megawatts of annual production. Modules will be manufactured at an industry leading cost which will enable AVA Solar's modules to produce power that is cost-competitive with traditional energy resources. With low manufacturing costs and the ability to scale manufacturing, AVA Solar has been contacted by some of the largest customers in the PV industry to negotiate long-term supply contracts. The current market for PV has continued to grow at 40%+ per year for nearly a decade and is projected to reach $40-$60 Billion by 2012. Currently, a crystalline silicon raw material supply shortage is limiting growth and raising costs. Our process does not use silicon, eliminating these limitations.

Kurt Barth

2008-02-06T23:59:59.000Z

34

Advances in High Throughput Screening of Biomass Recalcitrance (Poster)  

DOE Green Energy (OSTI)

This was a poster displayed at the Symposium. Advances on previous high throughput screening of biomass recalcitrance methods have resulted in improved conversion and replicate precision. Changes in plate reactor metallurgy, improved preparation of control biomass, species-specific pretreatment conditions, and enzymatic hydrolysis parameters have reduced overall coefficients of variation to an average of 6% for sample replicates. These method changes have improved plate-to-plate variation of control biomass recalcitrance and improved confidence in sugar release differences between samples. With smaller errors plant researchers can have a higher degree of assurance more low recalcitrance candidates can be identified. Significant changes in plate reactor, control biomass preparation, pretreatment conditions and enzyme have significantly reduced sample and control replicate variability. Reactor plate metallurgy significantly impacts sugar release aluminum leaching into reaction during pretreatment degrades sugars and inhibits enzyme activity. Removal of starch and extractives significantly decreases control biomass variability. New enzyme formulations give more consistent and higher conversion levels, however required re-optimization for switchgrass. Pretreatment time and temperature (severity) should be adjusted to specific biomass types i.e. woody vs. herbaceous. Desalting of enzyme preps to remove low molecular weight stabilizers and improved conversion levels likely due to water activity impacts on enzyme structure and substrate interactions not attempted here due to need to continually desalt and validate precise enzyme concentration and activity.

Turner, G. B.; Decker, S. R.; Tucker, M. P.; Law, C.; Doeppke, C.; Sykes, R. W.; Davis, M. F.; Ziebell, A.

2012-06-01T23:59:59.000Z

35

Low inlet gas velocity high throughput biomass gasifier  

DOE Patents (OSTI)

The present invention discloses a novel method of operating a gasifier for production of fuel gas from carbonaceous fuels. The process disclosed enables operating in an entrained mode using inlet gas velocities of less than 7 feet per second, feedstock throughputs exceeding 4000 lbs/ft.sup.2 -hr, and pressures below 100 psia.

Feldmann, Herman F. (Worthington, OH); Paisley, Mark A. (Upper Arlington, OH)

1989-01-01T23:59:59.000Z

36

Synthesis and characterization of four new metal 5-phosphonoisophthalates discovered by high-throughput experimentation  

SciTech Connect

A new ligand, 5-diethylphosphonoisophthalic acid ((HOOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3}(C{sub 2}H{sub 5}){sub 2}, H{sub 2}Et{sub 2}L), for the hydrothermal synthesis of inorganic-organic hybrid compounds was prepared and characterized by NMR-spectroscopy. Its in situ hydrolysis leads to the corresponding 5-phosphonoisophthalic acid ((HOOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3}H{sub 2}, H{sub 4}L). Applying high-throughput methods, different di- and trivalent metal salts for the synthesis of crystalline metal phosphonates based on H{sub 2}Et{sub 2}L have been screened. From the resulting discovery library, single-crystals of four new compounds, [Sm{sub 2}(H{sub 2}O){sub 4}(H(OOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3}){sub 2}].2H{sub 2}O (1), [Cu{sub 3}(H{sub 2}O)(H(OOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3}){sub 2}].2H{sub 2}O (2), Ca{sub 2}(H{sub 2}O)[H(OOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3}H]{sub 2} (3), and Ba{sub 2}(H{sub 2}O){sub 3}(OOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3} (4), have been isolated. The single-crystal structure determination of the title compounds shows H{sub 4}L to be a versatile ligand, exhibiting different types of coordination modes between the functional groups and the metal ions. A comparison of the structural features of the title compounds shows a varying degree of M-O-M connectivities. Thus, isolated metal-oxygen clusters (compounds 1 and 2), infinite M-O-M chains (compound 3), and infinite M-O-M layers (compound 4) are observed. The title compounds 1, 2, and 3 were further characterized by IR-spectroscopy, TG-, EDX-, and elemental chemical analysis. - Graphical abstract: Applying high-throughput methods, the new ligand 5-diethylphosphonoisophtalic acid, (HOOC){sub 2}C{sub 6}H{sub 3}-PO{sub 3}(C{sub 2}H{sub 5}){sub 2} (H{sub 2}Et{sub 2}L), was reacted with several di- and trivalent metal salts under hydrothermal conditions. Single-crystals of four new inorganic-organic hybrid compounds were isolated from the discovery library. The single-crystal structure analysis shows a varying M-O-M connectivity.

Bauer, Sebastian [Institute of Inorganic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 6/7, D 24098 Kiel (Germany); Stock, Norbert [Institute of Inorganic Chemistry, Christian-Albrechts-University, Otto-Hahn-Platz 6/7, D 24098 Kiel (Germany)], E-mail: stock@ac.uni-kiel.de

2007-11-15T23:59:59.000Z

37

The Materials genome : rapid materials screening for renewable energy using high-throughput density functional theory  

E-Print Network (OSTI)

This thesis relates to the emerging field of high-throughput density functional theory (DFT) computation for materials design and optimization. Although highthroughput DFT is a promising new method for materials discovery, ...

Jain, Anubhav, Ph.D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

38

First principles high throughput screening of oxynitrides for water-splitting photocatalysts  

E-Print Network (OSTI)

In this paper, we present a first principles high throughput screening system to search for new water-splitting photocatalysts. We use the approach to screen through nitrides and oxynitrides. Most of the known photocatalytic ...

Wu, Yabi

2013-01-01T23:59:59.000Z

39

Cell bioprinting as a potential high-throughput method for fabricating cell-based biosensors (CBBs)  

E-Print Network (OSTI)

Cell-based biosensors (CBBs) are becoming an important tool for biosecurity applications and rapid diagnostics. For current CBBs technology, cell immobilization and high throughput fabrication are the main challenges. To ...

Xu, F.

40

An instrument for high-throughput measurements of fiber mechanical properties  

E-Print Network (OSTI)

In this thesis, an instrument is designed and constructed for the purpose of measuring the mechanical properties of single fibers. The instrument is intended to provide high throughput measurement of single fiber geometric ...

Kristofek, Grant William, 1980-

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

DotDFS: A Grid-based high-throughput file transfer system  

Science Conference Proceedings (OSTI)

DotGrid platform is a Grid infrastructure integrated with a set of open and standard protocols recently implemented on the top of Microsoft .NET in Windows and MONO .NET in UNIX/Linux. DotGrid infrastructure along with its proposed protocols provides ... Keywords: Concurrent systems, Data grids, Event-driven architecture, File transfer protocols, Grid computing, Grid security, High throughput file transfer, Modeling parallel TCP throughput

Alireza Poshtkohi; M. B. Ghaznavi-Ghoushchi

2011-02-01T23:59:59.000Z

42

Possible Origin of Improved High Temperature Performance of Hydrothermally Aged Cu/Beta Zeolite Catalysts  

SciTech Connect

The hydrothermal stability of Cu/beta NH3 SCR catalysts are explored here. In particular, this paper focuses on the interesting ability of this catalyst to maintain and even enhance high-temperature performance for the "standard" SCR reaction after modest (900 °C, 2 hours) hydrothermal aging. Characterization of the fresh and aged catalysts was performed with an aim to identify possible catalytic phases responsible for the enhanced high temperature performance. XRD, TEM and 27Al NMR all showed that the hydrothermally aging conditions used here resulted in almost complete loss of the beta zeolite structure between 1 and 2 hours aging. While the 27Al NMR spectra of 2 and 10 hour hydrothermally-aged catalysts showed significant loss of a peak associated with tetrahedrally-coordinated Al species, no new spectral features were evident. Two model catalysts, suggested by these characterization data as possible mimics of the catalytic phase formed during hydrothermal aging of Cu/beta, were prepared and tested for their performance in the "standard" SCR and NH3 oxidation reactions. The similarity in their reactivity compared to the 2 hour hydrothermally-aged Cu/beta catalyst suggests possible routes for preparing multi-component catalysts that may have wider temperature windows for optimum performance than those provided by current Cu/zeolite catalysts.

Peden, Charles HF; Kwak, Ja Hun; Burton, Sarah D.; Tonkyn, Russell G.; Kim, Do Heui; Lee, Jong H.; Jen, H. W.; Cavattaio, Giovanni; Cheng, Yisun; Lambert, Christine

2012-04-30T23:59:59.000Z

43

High-Throughput and Combinatorial Screening of Hydrogen Storage...  

NLE Websites -- All DOE Office Websites (Extended Search)

for New Complex Metal Hydrides Established a synthesis route that combines high-energy milling (SPEX) followed by hot-sintering under high H 2 -pressures (in-house station) Normal...

44

Algorithms for Next-Generation High-Throughput Sequencing Technologies  

E-Print Network (OSTI)

Batzoglou, “Whole- genome sequencing and assembly with high-this promise of whole genome sequencing to fruition, severalcerevisiae whole-genome sequencing dataset, we discover that

Kao, Wei-Chun

2011-01-01T23:59:59.000Z

45

Abstract--Design aspects of a minimally invasive high-throughput automation system for radiation biodosimetry are  

E-Print Network (OSTI)

for radiation exposure. Only those showing both internal and external contamination were examined usingAbstract--Design aspects of a minimally invasive high- throughput automation system for radiation was supported by grant number U19 AI067773, the Center for High-Throughput Minimally Invasive Radiation

46

Microchip Technology for High-Throughput Cancer Pathology  

E-Print Network (OSTI)

Sequencing in Cancer Research . . . . 80 Appendix A: High-the Warburg Effect. Cancer Research, 2006. 66(18): p. 8927-Breast Cancer Risk. Cancer Research, 2007. 67(10): p. 4687-

Duberow, Jr, David Paul

2009-01-01T23:59:59.000Z

47

High-Throughput Asynchronous Pipelines for Fine-Grain Dynamic Datapaths  

E-Print Network (OSTI)

This paper introduces several new asynchronous pipeline designs which offer high throughput as well as low latency. The designs target dynamic datapaths, both dualrail as well as single-rail. The new pipelines are latchfree and therefore are particularly well-suited for fine-grain pipelining, i.e., where each pipeline stage is only a single gate deep. The pipelines employ new control structures and protocols aimed at reducing the handshaking delay, the principal impediment to achieving high throughput in asynchronous pipelines. As a test vehicle, a 4-bit FIFO was designed using 0.6 micron technology. The results of careful HSPICE simulations of the FIFO designs are very encouraging. The dualrail designs deliver a throughput of up to 860 million data items per second. This performance represents an improvement by a factor of 2 over a widely-used comparable approach by Williams [16]. The new single-rail designs deliver a throughput of up to 1208 million data items per second.

Montek Singh; Steven M. Nowick

2000-01-01T23:59:59.000Z

48

Melter Throughput Enhancements for High-Iron HLW  

Science Conference Proceedings (OSTI)

This report describes work performed to develop and test new glass and feed formulations in order to increase glass melting rates in high waste loading glass formulations for HLW with high concentrations of iron. Testing was designed to identify glass and melter feed formulations that optimize waste loading and waste processing rate while meeting all processing and product quality requirements. The work included preparation and characterization of crucible melts to assess melt rate using a vertical gradient furnace system and to develop new formulations with enhanced melt rate. Testing evaluated the effects of waste loading on glass properties and the maximum waste loading that can be achieved. The results from crucible-scale testing supported subsequent DuraMelter 100 (DM100) tests designed to examine the effects of enhanced glass and feed formulations on waste processing rate and product quality. The DM100 was selected as the platform for these tests due to its extensive previous use in processing rate determination for various HLW streams and glass compositions.

Kruger, A. A. [Department of Energy, Office of River Protection, Richland, Washington (United States); Gan, Hoa [The Catholic University of America, Washington, DC (United States); Joseph, Innocent [The Catholic University of America, Washington, DC (United States); Pegg, Ian L. [The Catholic University of America, Washington, DC (United States); Matlack, Keith S. [The Catholic University of America, Washington, DC (United States); Chaudhuri, Malabika [The Catholic University of America, Washington, DC (United States); Kot, Wing [The Catholic University of America, Washington, DC (United States)

2012-12-26T23:59:59.000Z

49

PIP: a connection-oriented, multi-hop, multi-channel TDMA-based MAC for high throughput bulk transfer  

Science Conference Proceedings (OSTI)

In this paper, we consider the goal of achieving high throughput in a wireless sensor network. Our work is set in the context of those wireless sensor network applications which collect and transfer bulk data. We present PIP (Packets in Pipe), a MAC ... Keywords: MAC, TDMA, bulk data transfer, pipelining, throughput optimization, wireless sensor network applications

Bhaskaran Raman; Kameswari Chebrolu; Sagar Bijwe; Vijay Gabale

2010-11-01T23:59:59.000Z

50

High throughput lessons from the LHC experience.Johnston.TNC2013  

NLE Websites -- All DOE Office Websites (Extended Search)

high throughput in widely distributed data high throughput in widely distributed data management and analysis systems: Lessons from the LHC William E. Johnston ESnet, Lawrence Berkeley National Laboratory e-mail: wej@es.net Eli Dart ESnet, Lawrence Berkeley National Laboratory e-mail: dart@es.net Michael Ernst RHIC and ATLAS Computing Facility, Brookhaven National Laboratory e-mail: mernst@bnl.gov Brian Tierney ESnet, Lawrence Berkeley National Laboratory e-mail: bltierney@es.net Paper type Technical paper Abstract Today's large-scale science projects all involve world-wide collaborations that must routinely move 10s of petabytes per year between international sites in order to be successful. This is true for the two largest experiments at the Large Hadron Collider (LHC) at CERN - ATLAS and CMS - and for the climate science

51

High-throughput screening assay of hepatitis C virus helicase inhibitors using fluorescence-quenching phenomenon  

Science Conference Proceedings (OSTI)

We have developed a novel high-throughput screening assay of hepatitis C virus (HCV) nonstructural protein 3 (NS3) helicase inhibitors using the fluorescence-quenching phenomenon via photoinduced electron transfer between fluorescent dyes and guanine bases. We prepared double-stranded DNA (dsDNA) with a 5'-fluorescent-dye (BODIPY FL)-labeled strand hybridized with a complementary strand, the 3'-end of which has guanine bases. When dsDNA is unwound by helicase, the dye emits fluorescence owing to its release from the guanine bases. Our results demonstrate that this assay is suitable for quantitative assay of HCV NS3 helicase activity and useful for high-throughput screening for inhibitors. Furthermore, we applied this assay to the screening for NS3 helicase inhibitors from cell extracts of microorganisms, and found several cell extracts containing potential inhibitors.

Tani, Hidenori [Department of Life Science and Medical Bio-Science, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480 (Japan); Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566 (Japan); Akimitsu, Nobuyoshi [Radioisotope Center, University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-0032 (Japan); Fujita, Osamu; Matsuda, Yasuyoshi [Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566 (Japan); Department of Life Science and Medical Bio-Science, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480 (Japan); Miyata, Ryo [Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566 (Japan); Tsuneda, Satoshi [Department of Life Science and Medical Bio-Science, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480 (Japan); Igarashi, Masayuki [Microbial Chemistry Research Center, 3-14-23 Kamiosaki, Shinagawa-ku, Tokyo 141-0021 (Japan); Sekiguchi, Yuji [Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566 (Japan); Noda, Naohiro [Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566 (Japan); Department of Life Science and Medical Bio-Science, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480 (Japan)], E-mail: noda-naohiro@aist.go.jp

2009-02-20T23:59:59.000Z

52

Robust, high-throughput solution structural analyses by small angle X-ray scattering (SAXS)  

Science Conference Proceedings (OSTI)

We present an efficient pipeline enabling high-throughput analysis of protein structure in solution with small angle X-ray scattering (SAXS). Our SAXS pipeline combines automated sample handling of microliter volumes, temperature and anaerobic control, rapid data collection and data analysis, and couples structural analysis with automated archiving. We subjected 50 representative proteins, mostly from Pyrococcus furiosus, to this pipeline and found that 30 were multimeric structures in solution. SAXS analysis allowed us to distinguish aggregated and unfolded proteins, define global structural parameters and oligomeric states for most samples, identify shapes and similar structures for 25 unknown structures, and determine envelopes for 41 proteins. We believe that high-throughput SAXS is an enabling technology that may change the way that structural genomics research is done.

Hura, Greg L.; Menon, Angeli L.; Hammel, Michal; Rambo, Robert P.; Poole II, Farris L.; Tsutakawa, Susan E.; Jenney Jr, Francis E.; Classen, Scott; Frankel, Kenneth A.; Hopkins, Robert C.; Yang, Sungjae; Scott, Joseph W.; Dillard, Bret D.; Adams, Michael W. W.; Tainer, John A.

2009-07-20T23:59:59.000Z

53

Baculovirus expression system and method for high throughput expression of genetic material  

DOE Patents (OSTI)

The present invention provides novel recombinant baculovirus expression systems for expressing foreign genetic material in a host cell. Such expression systems are readily adapted to an automated method for expression foreign genetic material in a high throughput manner. In other aspects, the present invention features a novel automated method for determining the function of foreign genetic material by transfecting the same into a host by way of the recombinant baculovirus expression systems according to the present invention.

Clark, Robin (Benecia, CA); Davies, Anthony (Mill Valley, CA)

2001-01-01T23:59:59.000Z

54

Hydrothermal processing of high-lipid biomass to fuels  

E-Print Network (OSTI)

High-lipid algae are potential sources of biofuels. Lipids in this biomass provide a straightforward chemical route to hydrocarbon-based high energy-density fuels needed for diesel and jet engines. However, current schemes ...

Johnson, Michael C., Ph. D. Massachusetts Institute of Technology

2012-01-01T23:59:59.000Z

55

High-throughput data mined prediction of inorganic compounds and computational discovery of new lithium-ion battery cathode materials  

E-Print Network (OSTI)

The ability to computationally predict the properties of new materials, even prior to their synthesis, has been made possible due to the current accuracy of modern ab initio techniques. In some cases, high-throughput ...

Hautier, Geoffroy (Geoffroy T. F.)

2011-01-01T23:59:59.000Z

56

Evaluation of Tavorite-Structured Cathode Materials for Lithium-Ion Batteries Using High-Throughput Computing  

E-Print Network (OSTI)

Cathode materials with structure similar to the mineral tavorite have shown promise for use in lithium-ion batteries, but this class of materials is relatively unexplored. We use high-throughput density-functional-theory ...

Mueller, Tim

57

Advances in high-throughput speed, low-latency communication for embedded instrumentation ( 7th Annual SFAF Meeting, 2012)  

Science Conference Proceedings (OSTI)

Scott Jordan on "Advances in high-throughput speed, low-latency communication for embedded instrumentation" at the 2012 Sequencing, Finishing, Analysis in the Future Meeting held June 5-7, 2012 in Santa Fe, New Mexico.

Jordan, Scott [Physik Instrumente

2012-06-01T23:59:59.000Z

58

High Throughput Plasmid Sequencing with Illumina and CLC Bio (Seventh Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting 2012)  

Science Conference Proceedings (OSTI)

Ajay Athavale (Monsanto) presents "High Throughput Plasmid Sequencing with Illumina and CLC Bio" at the 7th Annual Sequencing, Finishing, Analysis in the Future (SFAF) Meeting held in June, 2012 in Santa Fe, NM.

Athavale, Ajay [Monsanto

2012-06-01T23:59:59.000Z

59

High Throughput Computing Impact on Meta Genomics (Metagenomics Informatics Challenges Workshop: 10K Genomes at a Time)  

Science Conference Proceedings (OSTI)

This presentation includes a brief background on High Throughput Computing, correlating gene transcription factors, optical mapping, genotype to phenotype mapping via QTL analysis, and current work on next gen sequencing.

Gore, Brooklin [Morgridge Institute for Research

2011-10-12T23:59:59.000Z

60

Coev2Net: a computational framework for boosting confidence in high-throughput protein-protein interaction datasets  

E-Print Network (OSTI)

Improving the quality and coverage of the protein interactome is of tantamount importance for biomedical research, particularly given the various sources of uncertainty in high-throughput techniques. We introduce a ...

Hosur, Raghavendra

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Exploration strategy for high-temperature hydrothermal systems in Basin and Range province  

DOE Green Energy (OSTI)

A 15-phase strategy of exploration for high-temperature convective hydrothermal resources in the Basin and Range province features a balanced mix of geologic, geochemical, geophysical, hydrologic, and drilling activities. The strategy, based on a study of data submitted under the Department of Energy's Industry Coupled Case Study Program, provides justification for inclusion or exclusion of all pertinent exploration methods. With continuing research on methods of exploration for, and modeling of, convective hydrothermal systems, this strategy is expected to change and become more cost-effective with time. The basic strategy may vary with the geology or hydrology. Personal preferences, budgetary constraints, time and land position constraints, and varied experience may cause industrial geothermal exploration managers to differ with our strategy. For those just entering geothermal exploration, the strategy should be particularly useful; many of its elements may apply in other geologic settings.

Ward, S.H.; Ross, H.P.; Nielson, D.L.

1981-01-01T23:59:59.000Z

62

Strategy of exploration for high temperature hydrothermal systems in the basin and range province  

DOE Green Energy (OSTI)

A fifteen phase strategy of exploration for high temperature convective hydrothermal resources in the basin and range province, recommended herein, features a balanced mix of geological, geochemical, geophysical, hydrological, and drilling activities. The strategy is based on a study of data submitted under the Department of Energy's Industry Coupled Case Study Program. Justification for inclusion in or exclusion from the strategy of all pertinent geoscientific methods is given. With continuing research on methods of exploration for and modeling of convective hydrothermal systems, this strategy is expected to change and become more cost-effective with time. Variations on the basic strategy are to be expected where the geology or hydrology requires it. Personal preferences, budgetary constraints, time and land position constraints, and varied experience may cause industrial geothermal exploration managers to differ with our strategy. For those just entering geothermal exploration, the strategy is expected to be particularly useful.

Ward, S.H.; Ross, H.P.; Nielson, D.L.

1979-12-01T23:59:59.000Z

63

Optima MDxt: A high throughput 335 keV mid-dose implanter  

SciTech Connect

The continuing demand for both energy purity and implant angle control along with high wafer throughput drove the development of the Axcelis Optima MDxt mid-dose ion implanter. The system utilizes electrostatic scanning, an electrostatic parallelizing lens and an electrostatic energy filter to produce energetically pure beams with high angular integrity. Based on field proven components, the Optima MDxt beamline architecture offers the high beam currents possible with singly charged species including arsenic at energies up to 335 keV as well as large currents from multiply charged species at energies extending over 1 MeV. Conversely, the excellent energy filtering capability allows high currents at low beam energies, since it is safe to utilize large deceleration ratios. This beamline is coupled with the >500 WPH capable endstation technology used on the Axcelis Optima XEx high energy ion implanter. The endstation includes in-situ angle measurements of the beam in order to maintain excellent beam-to-wafer implant angle control in both the horizontal and vertical directions. The Optima platform control system provides new generation dose control system that assures excellent dosimetry and charge control. This paper will describe the features and technologies that allow the Optima MDxt to provide superior process performance at the highest wafer throughput, and will provide examples of the process performance achievable.

Eisner, Edward; David, Jonathan; Justesen, Perry; Kamenitsa, Dennis; McIntyre, Edward; Rathmell, Robert; Ray, Andrew; Rzeszut, Richard [Axcelis Technologies, Inc., 108 Cherry Hill Drive, Beverly, MA 01915 (United States)

2012-11-06T23:59:59.000Z

64

Design philosophy for high-resolution rate and throughput spectroscopy systems  

SciTech Connect

The paper describes the philosophy behind the design of a pulse processing system used in a semiconductor detector x-ray spectrometer to be used for plasma diagnostics at the Princeton TFTR facility. This application presents the unusual problems of very high counting rates and a high-energy neutron background while still requiring excellent resolution. To meet these requirements three specific new advances are included in the design: (i) A symmetrical triangular pulse shape is employed in the main pulse-processing channel. A new simple method of generating a close approximation to the symmetrical triangle has been developed. (ii) To cope with the very wide dynamic range of signals while maintaining a constant fast resolving time, approximately symmetical triangular pulse shaping is also used in the fast pulse pile-up inspection channel. (iii) The demand for high throughput has resulted in a re-examination of the operation of pile-up rejectors and pulse stretchers. As a result a technique has been developed that, for a given total pulse shaping time, permits approximately a 40% increase in throughput in the system. Performance results obtained using the new techniques are presented.

Goulding, F.S.; Landis, D.A.; Madden, N.W.

1982-05-01T23:59:59.000Z

65

Argonne's HigH THrougHpuT reseArcH LAborATory  

NLE Websites -- All DOE Office Websites (Extended Search)

accelerating materials innovation accelerating materials innovation Argonne's HigH THrougHpuT reseArcH LAborATory The conventional "one-at-a-time" sequential approach for synthesizing, characterizing and evaluating new materials typically provides only incremental improvements; it is both labor- and resource-intensive as well as very expensive. T h e d is c o v e r y a n d s y n t h e s is o f n e w m a t e r ia ls a r e c r it ic a l b o t t le n e c k s in t h e s e a r c h f o r a lt e r n a t iv e e n e r g y s o u r c e s . Argonne nATionAL LAborATory's High Throughput research Laboratory accelerates the discovery and optimization of new materials, leading to "quantum jump" improvements and fast-tracked marketplace entry. Argonne's HTR provides highly automated and parallel approaches to materials development. This allows scientists to

66

High-Throughput Thin Film Approach for Screening of Temperature-Pressure-Composition Phase Space  

SciTech Connect

Many solar energy technologies, for example CIGS and CdTe photovoltaics, utilize materials in thin film form. The equilibrium phase diagrams for these and other more novel solar energy materials are not known or are irrelevant because of the non-equilibrium character of the thin film growth processes. We demonstrate a high-throughput thin film approach for screening of temperature-pressure-composition phase diagrams and phase spaces. The examples in focus are novel solar absorbers Cu-N, Cu-O and p-type transparent conductors in the Cr2O3-MnO system. The composition axis of the Cr2O3-MnO phase diagram was screened using a composition spread method. The temperature axis of the Mn-O phase diagram was screened using a temperature spread method. The pressure axes of the Cu-N and Cu-O phase diagrams were screened using rate spread method with the aid of non-equilibrium growth phenomena. Overall these three methods constitute an approach to high-throughput screening of inorganic thin film phase diagrams. This research is supported by U.S. Department of Energy as a part of two NextGen Sunshot projects and an Energy Frontier Research Center.

Zakutayev, A.; Subramaniyan, A.; Caskey, C. M.; Ndione, P. F.; Richards, R. M.; O'Hayre, R.; Ginley, D. S.

2013-01-01T23:59:59.000Z

67

Development of a high-throughput microfluidic integrated microarray for the detection of chimeric bioweapons.  

SciTech Connect

The advancement of DNA cloning has significantly augmented the potential threat of a focused bioweapon assault, such as a terrorist attack. With current DNA cloning techniques, toxin genes from the most dangerous (but environmentally labile) bacterial or viral organism can now be selected and inserted into robust organism to produce an infinite number of deadly chimeric bioweapons. In order to neutralize such a threat, accurate detection of the expressed toxin genes, rather than classification on strain or genealogical decent of these organisms, is critical. The development of a high-throughput microarray approach will enable the detection of unknowns chimeric bioweapons. The development of a high-throughput microarray approach will enable the detection of unknown bioweapons. We have developed a unique microfluidic approach to capture and concentrate these threat genes (mRNA's) upto a 30 fold concentration. These captured oligonucleotides can then be used to synthesize in situ oligonucleotide copies (cDNA probes) of the captured genes. An integrated microfluidic architecture will enable us to control flows of reagents, perform clean-up steps and finally elute nanoliter volumes of synthesized oligonucleotides probes. The integrated approach has enabled a process where chimeric or conventional bioweapons can rapidly be identified based on their toxic function, rather than being restricted to information that may not identify the critical nature of the threat.

Sheppod, Timothy; Satterfield, Brent; Hukari, Kyle W.; West, Jason A. A.; Hux, Gary A.

2006-10-01T23:59:59.000Z

68

Generalized Schemes for High Throughput Manipulation of the Desulfovibrio vulgaris Hildenborough Genome.  

Science Conference Proceedings (OSTI)

The ability to conduct advanced functional genomic studies of the thousands of 38 sequenced bacteria has been hampered by the lack of available tools for making high39 throughput chromosomal manipulations in a systematic manner that can be applied across 40 diverse species. In this work, we highlight the use of synthetic biological tools to 41 assemble custom suicide vectors with reusable and interchangeable DNA parts to 42 facilitate chromosomal modification at designated loci. These constructs enable an array 43 of downstream applications including gene replacement and creation of gene fusions with 44 affinity purification or localization tags. We employed this approach to engineer 45 chromosomal modifications in a bacterium that has previously proven difficult to 46 manipulate genetically, Desulfovibrio vulgaris Hildenborough, to generate a library of 47 662 strains. Furthermore, we demonstrate how these modifications can be used for 48 examining metabolic pathways, protein-protein interactions, and protein localization. The 49 ubiquity of suicide constructs in gene replacement throughout biology suggests that this 50 approach can be applied to engineer a broad range of species for a diverse array of 51 systems biological applications and is amenable to high-throughput implementation.

Chhabra, Swapnil [Lawrence Berkeley National Laboratory (LBNL); Butland, Gareth [Lawrence Berkeley National Laboratory (LBNL); Elias, Dwayne A [ORNL; Chandonia, John-Marc [Lawrence Berkeley National Laboratory (LBNL); Fok, Olivia [Lawrence Berkeley National Laboratory (LBNL); Juba, tom [University of Missouri; Gorur, A. [Lawrence Berkeley National Laboratory (LBNL); Allen, S. [University of California, San Francisco; Leung, C. M. [Lawrence Berkeley National Laboratory (LBNL); Keller, Kim [University of Missouri; Reveco, S. [Lawrence Berkeley National Laboratory (LBNL); Zane, Mr. Grant M. [University of Missouri, Columbia; Semkiw, Elizabeth M. [University of Missouri; Prathapam, R. [Lawrence Berkeley National Laboratory (LBNL); Gold, B. [Lawrence Berkeley National Laboratory (LBNL); Singer, Mary [Lawrence Berkeley National Laboratory (LBNL); Ouellet, M. [Lawrence Berkeley National Laboratory (LBNL); Sazakal, E. D. [University of California, San Francisco; Jorgens, Dominique [Lawrence Berkeley National Laboratory (LBNL); Price, Morgan N. [Lawrence Berkeley National Laboratory (LBNL); Witkowska, Ewa [University of California, San Francisco; Beller, Harry R. [Lawrence Berkeley National Laboratory (LBNL); Hazen, Terry [Lawrence Berkeley National Laboratory (LBNL); Biggin, Mark D. [Lawrence Berkeley National Laboratory (LBNL); Auer, Dr. Manfred [Lawrence Berkeley National Laboratory (LBNL); Wall, Judy D. [University of Missouri; Keasling, Jay [Lawrence Berkeley National Laboratory (LBNL)

2011-01-01T23:59:59.000Z

69

High-Throughput Pretreatment and Hydrolysis Systems for Screening Biomass Species in Aqueous Pretreatment of Plant Biomass  

NLE Websites -- All DOE Office Websites (Extended Search)

High-throughput High-throughput Pretreatment and Hydrolysis Systems for Screening Biomass Species in Aqueous Pretreatment of Plant Biomass Jaclyn D. DeMartini 1,2,3,Ã and Charles E. Wyman 1,2,3 1 Department of Chemical and Environmental Engineering, University of California, Riverside, USA 2 Center for Environmental Research and Technology, University of California, Riverside, USA 3 BioEnergy Science Center, Oak Ridge, USA 22.1 Introduction: The Need for High-throughput Technologies The primary barrier to low-cost biological conversion of lignocellulosic biomass to renewable fuels and chemicals is plant recalcitrance, that is to say, resistance of cell walls to deconstruction by enzymes or microbes [1,2]. However, the discovery and use of biomass species with reduced recalcitrance, when com- bined with optimized pretreatment processes and enzyme mixtures, could potentially

70

Integrated crystal mounting and alignment system for high-throughput biological crystallography  

DOE Patents (OSTI)

A method and apparatus for the transportation, remote and unattended mounting, and visual alignment and monitoring of protein crystals for synchrotron generated x-ray diffraction analysis. The protein samples are maintained at liquid nitrogen temperatures at all times: during shipment, before mounting, mounting, alignment, data acquisition and following removal. The samples must additionally be stably aligned to within a few microns at a point in space. The ability to accurately perform these tasks remotely and automatically leads to a significant increase in sample throughput and reliability for high-volume protein characterization efforts. Since the protein samples are placed in a shipping-compatible layered stack of sample cassettes each holding many samples, a large number of samples can be shipped in a single cryogenic shipping container.

Nordmeyer, Robert A. (San Leandro, CA); Snell, Gyorgy P. (Richmond, CA); Cornell, Earl W. (Antioch, CA); Kolbe, William F. (Moraga, CA); Yegian, Derek T. (Oakland, CA); Earnest, Thomas N. (Berkeley, CA); Jaklevich, Joseph M. (Lafayette, CA); Cork, Carl W. (Walnut Creek, CA); Santarsiero, Bernard D. (Chicago, IL); Stevens, Raymond C. (La Jolla, CA)

2007-09-25T23:59:59.000Z

71

PIPA: A High-Throughput Pipeline for Protein Function Annotation Chenggang Yu, Valmik Desai, Nela Zavaljevski, and Jaques Reifman  

E-Print Network (OSTI)

PIPA: A High-Throughput Pipeline for Protein Function Annotation Chenggang Yu, Valmik Desai, Nela of multisource predictions. We developed Pipeline for Protein Annotation (PIPA), a genome-wide protein function annotation pipeline that runs in a high-performance computing environment. PIPA integrates different tools

72

A High-Throughput 3-D X-ray Microtomography System with Real-Time 3-D  

NLE Websites -- All DOE Office Websites (Extended Search)

Throughput 3-D X-ray Microtomography System with Real-Time 3-D Throughput 3-D X-ray Microtomography System with Real-Time 3-D Reconstruction A high-throughput x-ray microtomography system (XMS) that can acquire, reconstruct, and interactively display rendered 3-D images of a sample at micrometer-scale resolution within minutes has been developed at Advanced Photon Source (APS) beamline 2-BM, which is managed by the Synchrotron Radiation Instrumentation Collaborative Access Team (SRI-CAT). This system could bring better understanding of an array of scientific and technological problems, ranging from failure in microelectronic devices to structures in biological samples. A rendered image from a three-dimensional tomographic reconstruction of a cricket, obtained with the x-ray microtomography system. The image has been digitally cut at different planes to show the internal structures of the cricket's head.

73

PIPELINED PARALLEL ARCHITECTURE FOR HIGH THROUGHPUT MAP DETECTORS Ruwan Ratnayake, Gu-Yeon Wei and Aleksandar Kavcic  

E-Print Network (OSTI)

PIPELINED PARALLEL ARCHITECTURE FOR HIGH THROUGHPUT MAP DETECTORS Ruwan Ratnayake, Gu-Yeon Wei performance close to the channel capacity limits. Deep pipelined architecture for the forward only method, where as FB-BCJR only allow sequential state metric computations. Parallelism facilitates pipelining, re

Kavcic, Aleksandar

74

High-throughput liquid-absorption air-sampling apparatus and methods  

DOE Patents (OSTI)

A portable high-throughput liquid-absorption air sampler [PHTLAAS] has an asymmetric air inlet through which air is drawn upward by a small and light-weight centrifugal fan driven by a direct current motor that can be powered by a battery. The air inlet is so configured as to impart both rotational and downward components of motion to the sampled air near said inlet. The PHTLAAS comprises a glass tube of relatively small size through which air passes at a high rate in a swirling, highly turbulent motion, which facilitates rapid transfer of vapors and particulates to a liquid film covering the inner walls of the tube. The pressure drop through the glass tube is <10 cm of water, usually <5 cm of water. The sampler's collection efficiency is usually >20% for vapors or airborne particulates in the 2-3.mu. range and >50% for particles larger than 4.mu.. In conjunction with various analyzers, the PHTLAAS can serve to monitor a variety of hazardous or illicit airborne substances, such as lead-containing particulates, tritiated water vapor, biological aerosols, or traces of concealed drugs or explosives.

Zaromb, Solomon (95706 William Dr., Hinsdale, IL 60521)

2000-01-01T23:59:59.000Z

75

High throughput low power decoder architectures for low density parity check codes  

E-Print Network (OSTI)

A high throughput scalable decoder architecture, a tiling approach to reduce the complexity of the scalable architecture, and two low power decoding schemes have been proposed in this research. The proposed scalable design is generated from a serial architecture by scaling the combinational logic; memory partitioning and constructing a novel H matrix to make parallelization possible. The scalable architecture achieves a high throughput for higher values of the parallelization factor M. The switch logic used to route the bit nodes to the appropriate checks is an important constituent of the scalable architecture and its complexity is high with higher M. The proposed tiling approach is applied to the scalable architecture to simplify the switch logic and reduce gate complexity. The tiling approach generates patterns that are used to construct the H matrix by repeating a fixed number of those generated patterns. The advantages of the proposed approach are two-fold. First, the information stored about the H matrix is reduced by onethird. Second, the switch logic of the scalable architecture is simplified. The H matrix information is also embedded in the switch and no external memory is needed to store the H matrix. Scalable architecture and tiling approach are proposed at the architectural level of the LDPC decoder. We propose two low power decoding schemes that take advantage of the distribution of errors in the received packets. Both schemes use a hard iteration after a fixed number of soft iterations. The dynamic scheme performs X soft iterations, then a parity checker cHT that computes the number of parity checks in error. Based on cHT value, the decoder decides on performing either soft iterations or a hard iteration. The advantage of the hard iteration is so significant that the second low power scheme performs a fixed number of iterations followed by a hard iteration. To compensate the bit error rate performance, the number of soft iterations in this case is higher than that of those performed before cHT in the first scheme.

Selvarathinam, Anand Manivannan

2005-08-01T23:59:59.000Z

76

Hydrothermal Processing  

DOE Green Energy (OSTI)

This chapter is a contribution to a book on Thermochemical Conversion of Biomass being edited by Prof. Robert Brown of Iowa State University. It describes both hydrothermal liquefaction and hydrothermal gasification of biomass to fuels.

Elliott, Douglas C.

2011-03-11T23:59:59.000Z

77

Evaluation of a New Remote Handling Design for High Throughput Annular Centrifugal Contactors  

Science Conference Proceedings (OSTI)

Advanced designs of nuclear fuel recycling plants are expected to include more ambitious goals for aqueous based separations including; higher separations efficiency, high-level waste minimization, and a greater focus on continuous processes to minimize cost and footprint. Therefore, Annular Centrifugal Contactors (ACCs) are destined to play a more important role for such future processing schemes. Previous efforts defined and characterized the performance of commercial 5 cm and 12.5 cm single-stage ACCs in a “cold” environment. The next logical step, the design and evaluation of remote capable pilot scale ACCs in a “hot” or radioactive environment was reported earlier. This report includes the development of remote designs for ACCs that can process the large throughput rates needed in future nuclear fuel recycling plants. Novel designs were developed for the remote interconnection of contactor units, clean-in-place and drain connections, and a new solids removal collection chamber. A three stage, 12.5 cm diameter rotor module has been constructed and evaluated for operational function and remote handling in highly radioactive environments. This design is scalable to commercial CINC ACC models from V-05 to V-20 with total throughput rates ranging from 20 to 650 liters per minute. The V-05R three stage prototype was manufactured by the commercial vendor for ACCs in the U.S., CINC mfg. It employs three standard V-05 clean-in-place (CIP) units modified for remote service and replacement via new methods of connection for solution inlets, outlets, drain and CIP. Hydraulic testing and functional checks were successfully conducted and then the prototype was evaluated for remote handling and maintenance suitability. Removal and replacement of the center position V-05R ACC unit in the three stage prototype was demonstrated using an overhead rail mounted PaR manipulator. This evaluation confirmed the efficacy of this innovative design for interconnecting and cleaning individual stages while retaining the benefits of commercially reliable ACC equipment for remote applications in the nuclear industry. Minor modifications and suggestions for improved manual remote servicing by the remote handling specialists were provided but successful removal and replacement was demonstrated in the first prototype.

David H. Meikrantz; Troy G. Garn; Jack D. Law; Lawrence L. Macaluso

2009-09-01T23:59:59.000Z

78

High Throughput Screening for the Discovery of More Efficient Catalysts for Emissions Control  

DOE Green Energy (OSTI)

High-throughput synthesis and screening methods have been developed for the discovery of highly active catalysts for the control of emissions from stationary and mobile sources. Low temperature CO oxidation, CO methanation, NOx abatement and the destruction of Volatile Organic Compounds (VOCs) will be discussed. The discovery libraries for primary screening consisted of both 11x11 and 16x16 catalyst arrays on 3 inch and 4 inch quartz wafers, respectively. Catalysts were prepared by robotic liquid dispensing techniques and screened for catalytic activity in Symyx's Scanning Mass Spectrometer. The screening protocols encompassed mixed metal oxides, perovskites and supported base and noble metals. Active hits were further optimized in focus libraries using shallower compositional gradients. The ScanMS is a fast serial screening tool that uses flat wafer catalyst surfaces, local laser heating, a scanning/sniffing nozzle and a quadrupolar mass spectrometer to compare relative catalytic activities. The temperature range from 200C to 600C is accessible. Typically, 256 catalysts can be screened per day and about 100,000 experiments conducted annually.

Yaccato, Karin; Hagemeyer, Alfred; Volpe, Anthony; Weinberg, Henry

2004-03-31T23:59:59.000Z

79

A search model for topological insulators with high-throughput robustness descriptors  

Science Conference Proceedings (OSTI)

Topological insulators (TI) are becoming one of the most studied classes of novel materials because of their great potential for applications ranging from spintronics to quantum computers. To fully integrate TI materials in electronic devices, high-quality epitaxial single-crystalline phases with sufficiently large bulk bandgaps are necessary. Current efforts have relied mostly on costly and time-consuming trial-and-error procedures. Here we show that by defining a reliable and accessible descriptor {cflx X}TI, which represents the topological robustness or feasibility of the candidate, and by searching the quantum materials repository aflowlib.org, we have automatically discovered 28 TIs (some of them already known) in five different symmetry families. These include peculiar ternary halides, Cs{l_brace}Sn,Pb,Ge{r_brace}{l_brace}Cl,Br,I{r_brace}{sub 3}, which could have been hardly anticipated without high-throughput means. Our search model, by relying on the significance of repositories in materials development, opens new avenues for the discovery of more TIs in different and unexplored classes of systems.

Yang, Kesong; Setyawan, Wahyu; Wang, Shidong; Nardelli, Marco B.; Curtarolo, Stephano

2012-05-13T23:59:59.000Z

80

Metal Organic Framework Research: High Throughput Discovery of Robust Metal Organic Framework for CO2 Capture  

Science Conference Proceedings (OSTI)

IMPACCT Project: LBNL is developing a method for identifying the best metal organic frameworks for use in capturing CO2 from the flue gas of coal-fired power plants. Metal organic frameworks are porous, crystalline compounds that, based on their chemical structure, vary considerably in terms of their capacity to grab hold of passing CO2 molecules and their ability to withstand the harsh conditions found in the gas exhaust of coal-fired power plants. Owing primarily to their high tunability, metal organic frameworks can have an incredibly wide range of different chemical and physical properties, so identifying the best to use for CO2 capture and storage can be a difficult task. LBNL uses high-throughput instrumentation to analyze nearly 100 materials at a time, screening them for the characteristics that optimize their ability to selectively adsorb CO2 from coal exhaust. Their work will identify the most promising frameworks and accelerate their large-scale commercial development to benefit further research into reducing the cost of CO2 capture and storage.

None

2010-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Anaerobic High-Throughput Cultivation Method for Isolation of Thermophiles Using Biomass-Derived Substrates  

Science Conference Proceedings (OSTI)

Flow cytometry (FCM) techniques have been developed for sorting mesophilic organisms, but the difficulty increases if the target microbes are thermophilic anaerobes. We demonstrate a reliable, high-throughput method of screening thermophilic anaerobic organisms using FCM and 96-well plates for growth on biomass-relevant substrates. The method was tested using the cellulolytic thermophiles Clostridium ther- mocellum (Topt = 55 C), Caldicellulosiruptor obsidiansis (Topt = 78 C) and the fermentative hyperthermo- philes, Pyrococcus furiosus (Topt = 100 C) and Thermotoga maritima (Topt = 80 C). Multi-well plates were incubated at various temperatures for approximately 72 120 h and then tested for growth. Positive growth resulting from single cells sorted into individual wells containing an anaerobic medium was verified by OD600. Depending on the growth substrate, up to 80 % of the wells contained viable cultures, which could be transferred to fresh media. This method was used to isolate thermophilic microbes from Rabbit Creek, Yellowstone National Park (YNP), Wyoming. Substrates for enrichment cultures including crystalline cellulose (Avicel), xylan (from Birchwood), pretreated switchgrass and Populus were used to cultivate organisms that may be of interest to lignocellulosic biofuel production.

Hamilton-Brehm, Scott [ORNL; Vishnivetskaya, Tatiana A [ORNL; Allman, Steve L [ORNL; Mielenz, Jonathan R [ORNL; Elkins, James G [ORNL

2012-01-01T23:59:59.000Z

82

High-throughput Characterization of Porous Materials Using Graphics Processing Units  

Science Conference Proceedings (OSTI)

We have developed a high-throughput graphics processing units (GPU) code that can characterize a large database of crystalline porous materials. In our algorithm, the GPU is utilized to accelerate energy grid calculations where the grid values represent interactions (i.e., Lennard-Jones + Coulomb potentials) between gas molecules (i.e., CH$_{4}$ and CO$_{2}$) and material's framework atoms. Using a parallel flood fill CPU algorithm, inaccessible regions inside the framework structures are identified and blocked based on their energy profiles. Finally, we compute the Henry coefficients and heats of adsorption through statistical Widom insertion Monte Carlo moves in the domain restricted to the accessible space. The code offers significant speedup over a single core CPU code and allows us to characterize a set of porous materials at least an order of magnitude larger than ones considered in earlier studies. For structures selected from such a prescreening algorithm, full adsorption isotherms can be calculated by conducting multiple grand canonical Monte Carlo simulations concurrently within the GPU.

Kim, Jihan; Martin, Richard L.; Ruebel, Oliver; Haranczyk, Maciej; Smit, Berend

2012-03-19T23:59:59.000Z

83

Optimization of density functional tight-binding and classical reactive molecular dynamics for high-throughput simulations of carbon materials  

Science Conference Proceedings (OSTI)

Carbon materials and nanostructures (fullerenes, nanotubes) are promising building blocks of nanotechnology. Potential applications include optical and electronic devices, sensors, and nano-scale machines. The multiscale character of processes related ... Keywords: ACM proceedings, BLAS, Cray XT5, LAPACK, advanced materials, density-functional tight binding, high-throughput, linear algebra, material science, molecular dynamics, multiscale-modeling, quantum chemistry, scientific libraries, scientific-computing

Jacek Jakowski; Bilel Hadri; Steven J. Stuart; Predrag Krstic; Stephan Irle; Dulma Nugawela; Sophya Garashchuk

2012-07-01T23:59:59.000Z

84

High-Throughput Compression of FASTQ Data with SeqDB  

Science Conference Proceedings (OSTI)

Compression has become a critical step in storing next-generation sequencing (NGS) data sets because of both the increasing size and decreasing costs of such data. Recent research into efficiently compressing sequence data has focused largely on improving ... Keywords: Throughput,Arrays,Bandwidth,Libraries,Bioinformatics,Instruction sets,Genomics,FASTQ,Compression,data storage,next-generation sequencing

Mark Howison

2013-01-01T23:59:59.000Z

85

Empirical Bayesian analysis of paired high-throughput sequencing data with a beta-binomial distribution  

E-Print Network (OSTI)

-throughput sequencing experiments. We examine the performance of this method on simulated and real data in a variety of scenarios. Our methods are implemented as part of the RbaySeq package (versions 1.11.6 and greater) available from Bioconductor (http...

Hardcastle, Thomas J; Kelly, Krystyna A

2013-04-23T23:59:59.000Z

86

The Development of Microfabricated Microbial Fuel Cell Array as a High Throughput Screening Platform for Electrochemically Active Microbes  

E-Print Network (OSTI)

Microbial fuel cells (MFCs) are novel green technologies that convert chemical energy stored in biomass into electricity through microbial metabolisms. Both fossil fuel depletion and environmental concern have fostered significant interest in MFCs for both wastewater treatment and electricity generation. However, MFCs have not yet been used for practical applications due to their low power outputs and challenges associated with scale-up. High throughput screening devices for parallel studies are highly necessary to significantly improve and optimize MFC working conditions for future practical applications. Here in this research, microfabricated platforms of microbial fuel cell array as high throughput screening devices for MFC parallel studies have been developed. Their utilities were described with environmental sample screening to uncover electricigens with higher electrochemical activities. The first version of the MFC arrays is a batch-mode miniaturized 24-well MFC array using ferricyanide as catholyte. Several environmental species that showed higher electricity generation capabilities than Shewanella oneidensis MR-1 (SO) were uncovered using the developed MFC array, with one environmental electricigen, Shewanella sp. Hac353 (dq307734.1)(7Ca), showing 2.3-fold higher power output than SO. The second MFC array platform developed is an air-cathode MFC array using oxygen in air as electron acceptor, which is sustainable compared to ferricyanide that depletes over time. Environmental electricigen screenings were also conducted, showing parallel comparison capabilities of the developed array. The third MFC array platform is a microfluidic-cathode MFC array that enables long-term operations of miniature MFC arrays with improved power generation abilities. The capability of the microfluidic-cathode MFC array to support long-term parallel analysis was demonstrated by characterizing power generation of SO and 7Ca, proving extended operation time and improved power outputs compared to batch-mode MFC array. The fourth MFC array platform enables both catholyte and anolyte replenishments for long-term characterization of various carbon substrate performances. Finally, the 24-well microfluidic MFC array was further scaled up to 96 wells, which greatly increased the throughput of MFC parallel studies. The developed MFC arrays as high throughput screening platforms are expected to greatly impact how current MFC studies are conducted and ultimately lead to significant improvement in MFC power output.

Hou, Huijie

2011-12-01T23:59:59.000Z

87

High Throughput Combinatorial Screening of Biometic Metal-Organic Materials for Military Hydrogen-Storage Materials (New Joint Miami U/NREL DoD/DLA Project) (presentation)  

NLE Websites -- All DOE Office Websites (Extended Search)

Miami University/NREL DoD/DLA Project Miami University/NREL DoD/DLA Project High throughput combinatorial screening of biomimetic metal-organic materials for military hydrogen-storage applications Philip Parilla - NREL Joe Zhou, Dan Zhao - Miami U, Ohio Jeff Blackburn, Kevin O'Neill, Lin Simpson, Mike Heben - NREL Outline * Miami/NREL Project - Synthesis (Miami) - High Throughput Characterization (NREL) - Other Characterization * Other High Throughput Activities (NREL) - Parallel Sieverts - Parallel Gravimetric * Final Comments Overview of Miami/NREL Project * Goals - Development of H 2 storage materials based on MOFs, targeting 15 kJ/mole binding energy and high density of H 2 sites - Development of optical-based detection of adsorbed H 2 allowing rapid screening of samples * Approach - Combinatorial MOFs synthesis involving 8

88

Engineering of a high-throughput screening system to identify cellulosic biomass, pretreatments, and enzyme formulations that enhance sugar release  

NLE Websites -- All DOE Office Websites (Extended Search)

Engineering Engineering of a High-Throughput Screening System to Identify Cellulosic Biomass, Pretreatments, and Enzyme Formulations That Enhance Sugar Release Michael H. Studer, Jaclyn D. DeMartini, Simone Brethauer, Heather L. McKenzie, Charles E. Wyman Chemical and Environmental Engineering Department, Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, 1084 Columbia Avenue, Riverside, California 92507; telephone: þ951-781-5791; fax: þ951-781-5790; e-mail: charles.wyman@ucr.edu Received 7 April 2009; revision received 21 August 2009; accepted 31 August 2009 Published online 3 September 2009 in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/bit.22527 ABSTRACT: The recalcitrance of cellulosic biomass, the only abundant, sustainable feedstock for making liquid fuels, is a primary

89

Synchrotron x-ray spectroscopy of Eu/HNO{sub 3} aqueous solutions at high temperatures and pressures and Nb-bearing silicate melt phases coexisting with hydrothermal fluids using a modified hydrothermal diamond anvil cell and rail assembly  

Science Conference Proceedings (OSTI)

A modified hydrothermal diamond anvil cell (HDAC) rail assembly has been constructed for making synchrotron x-ray absorption spectroscopy, x-ray fluorescence, and x-ray mapping measurements on fluids or solid phases in contact with hydrothermal fluids up to {approx}900 deg. C and 700 MPa. The diamond anvils of the HDAC are modified by laser milling grooves or holes, for the reduction of attenuation of incident and fluorescent x rays and sample cavities. The modified HDAC rail assembly has flexibility in design for measurement of light elements at low concentrations or heavy elements at trace levels in the sample and the capability to probe minute individual phases of a multiphase fluid-based system using focused x-ray microbeam. The supporting rail allows for uniform translation of the HDAC, rotation and tilt stages, and a focusing mirror, which is used to illuminate the sample for visual observation using a microscope, relative to the direction of the incident x-ray beam. A structure study of Eu(III) aqua ion behavior in high-temperature aqueous solutions and a study of Nb partitioning and coordination in a silicate melt in contact with a hydrothermal fluid are described as applications utilizing the modified HDAC rail assembly.

Mayanovic, Robert A.; Anderson, Alan J.; Bassett, William A.; Chou, I-Ming [Department of Physics, Astronomy and Materials Science, Missouri State University, Springfield, Missouri 65897 (United States); Department of Earth Sciences, St. Francis Xavier University, P.O. Box 5000, Antigonish, Nova Scotia B2G 2W5 (Canada); Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, New York 14853 (United States); MS 954, U.S. Geological Survey, Reston, Virginia 20192 (United States)

2007-05-15T23:59:59.000Z

90

Life and hydrothermal vents  

NLE Websites -- All DOE Office Websites (Extended Search)

Life and hydrothermal vents Life and hydrothermal vents Name: williamh Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: Are there biological communities near hydrothermal vents in the ocean? Is there any life inside the hydrothermal vent? Replies: If the presence of microorganisms in hot springs and geysers are any indication, I am certain there is life inside hydrothermal vents. These heat loving organisms are termed "thermophiles" and thrive where other life dies. They are able to survive in extreme heat due to the unique way their proteins are synthesized. The May 1993 Discover has a special article on thermophiles. wizkid Life at high temperature became very interesting to molecular biologists recently. The enormously useful technique known as PCR, (polymerase chain reaction), by which very small amounts of rare DNA can be amplified to large concentrations (Jurassic Park!), depends on having a DNA polymerase (the enzyme that synthesizes complementary DNA strands during replication of chromosomes), that can work at high temperatures, or at least can survive repeated high temperature cycles. PCR depends on synthesis of DNA followed by forced separation of the daughter strands at high temperature, followed by new synthesis, to amplify DNA exponentially. At any rate, normal bacterial polymerase will not work because the high temperature cycles kill it. Enter the now infamous, patented Taq polymerase, isolated from Thermus aquaticus, a hot spring bacterium, which works after heating to up to 94 C! So knowledge of life at high temperature allowed molecular biologists to get PCR to work, with all its benefits in cloning very rare genes and amplifying small amounts of DNA for forensic work etc.

91

Versatile refresh: low complexity refresh scheduling for high-throughput multi-banked eDRAM  

Science Conference Proceedings (OSTI)

Multi-banked embedded DRAM (eDRAM) has become increasingly popular in high-performance systems. However, the data retention problem of eDRAM is exacerbated by the larger number of banks and the high-performance environment in which it is deployed: The ... Keywords: embedded DRAM, memory refresh scheduling, multi-banked

Mohammad Alizadeh; Adel Javanmard; Shang-Tse Chuang; Sundar Iyer; Yi Lu

2012-06-01T23:59:59.000Z

92

High-Throughput Proteomics Using High Efficiency Multiple-Capillary Liquid Chromatography With On-Line High-Performance ESI FTICR Mass Spectrometry  

Science Conference Proceedings (OSTI)

We report on the design and application of a high-efficiency multiple-capillary liquid chromatography (LC) system for high-throughput proteome analysis. The multiple-capillary LC system was operated at the pressure of 10,000 psi using commercial LC pumps to deliver the mobile phase and newly developed passive feedback valves to switch the mobile phase flow and introduce samples. The multiple-capillary LC system was composed of several serially connected dual-capillary column devices. The dual-capillary column approach was designed to eliminate the time delay for regeneration (or equilibrium) of the capillary column after its use under the mobile phase gradient condition (i.e. one capillary column was used in separation and the other was washed using mobile phase A). The serially connected dual-capillary columns and ESI sources were operated independently, and could be used for either''backup'' operation or with other mass spectrometer(s). This high-efficiency multiple-capillary LC system uses switching valves for all operations and is highly amenable to automation. The separations efficiency of dual-capillary column device, optimal capillary dimensions (column length and packed particle size), suitable mobile phases for electrospray, and the capillary re-generation were investigated. A high magnetic field (11.5 tesla) Fourier transform ion cyclotron resonance (FTICR) mass spectrometer was coupled on-line with this high-efficiency multiple-capillary LC system through an electrospray ionization source. The capillary LC provided a peak capacity of {approx}600, and the 2-D capillary LC-FTICR provided a combined resolving power of > 6 x 10 7 polypeptide isotopic distributions. For yeast cellular tryptic digests, > 100,000 polypeptides were typically detected, and {approx}1,000 proteins can be characterized in a single run.

Shen, Yufeng (BATTELLE (PACIFIC NW LAB)); Tolic, Nikola (BATTELLE (PACIFIC NW LAB)); Zhao, Rui (ASSOC WESTERN UNIVERSITY); Pasa Tolic, Ljiljana (BATTELLE (PACIFIC NW LAB)); Li, Lingjun (Illinois Univ Of-Urbana/Champa); Berger, Scott J. (ASSOC WESTERN UNIVERSITY); Harkewicz, Richard (BATTELLE (PACIFIC NW LAB)); Anderson, Gordon A. (BATTELLE (PACIFIC NW LAB)); Belov, Mikhail E. (BATTELLE (PACIFIC NW LAB)); Smith, Richard D. (BATTELLE (PACIFIC NW LAB))

2000-12-01T23:59:59.000Z

93

HiCT: High Throughput Protocols For CPE Cloning And Transformation  

E-Print Network (OSTI)

The purpose of this RFC is to provide instructions for a rapid and cost efficient cloning and transformation method which allows for the manufacturing of multi-fragment plasmid constructs in a parallelized manner: High ...

Beer, Ralf

2013-10-04T23:59:59.000Z

94

High-throughput analysis of chromosome translocations and other genome rearrangements in epithelial cancers  

E-Print Network (OSTI)

, 448:561-566. 5. Stephens PJ, McBride DJ, Lin ML, Varela I, Pleasance ED, Simpson JT, Stebbings LA, Leroy C, Edkins S, Mudie LJ, Greenman CD, Jia M, Latimer C, Teague JW, Lau KW, Burton J, Quail MA, Swerdlow H, Churcher C, Natrajan R, Sieuwerts AM... . Howarth KD, Blood KA, Ng BL, Beavis JC, Chua Y, Cooke SL, Raby S, Ichimura K, Collins VP, Carter NP, Edwards PA: Array painting reveals a high frequency of balanced translocations in breast cancer cell lines that break in cancer- relevant genes. Oncogene...

Newman, Scott; Edwards, Paul A W

2010-03-17T23:59:59.000Z

95

Conversion of forest residues to a methane-rich gas in a high-throughput gasifier  

DOE Green Energy (OSTI)

Research was conducted in a process research unit to develop an entrained bed gasifier which is supplied heat by recirculating a stream of sand between a separate combustion vessel and the gasifier. The char remaining after gasification of the wood provides the fuel for the combustor. The research program was conducted in two phases. In the first phase, a 6 in. I.D. gasifier was used to establish the feasibility of the concept for a wide variety of biomass feeds. The second phase of the program was conducted with a 10 in. I.D. gasifier, and a fully automated feeder system, to evaluate gasifier performance at very high feed rates. The experimental results were used to develop design parameters and detailed energy and material balances for a conceptual plant. A preliminary cost analysis is presented in the report based on the conceptual design. 5 refs., 24 figs., 13 tabs.

Feldmann, H.F.; Paisley, M.A.; Appelbaum, H.R.; Taylor, D.R.

1988-05-01T23:59:59.000Z

96

The Development of a High-throughput Microdroplet Bioreactor Device for Microbial Studies  

E-Print Network (OSTI)

Microdroplet microfluidics has gained much interested in the past decade due to its ability to conduct a wide variety of biological and microfluidic experiments with extremely high repeatability on a mass scale. In particular the ability to culture multiple batches of cells by creating microdroplets with a single encapsulated cell and observe their growth overtime allows for specific conditioning of cells. In addition, when conducting co-culture experiment the induction of a certain stimulus may provide observational rare differences in growth that may be characterized by harnessing a single batch of cells out of thousands of samples. This thesis first presents a variety of microdroplet microfluidic devices that use specific techniques to sufficiently produce, synchronize, merge, and analyze microdroplets. Although many of the devices are capable of producing stable droplets and somewhat efficient synchronization, the overall merging efficiency for most passive or active merging methods alone is lacking. Improvements on such methods and the incorporation of multiple merging methods can lead to a higher overall merging efficiency and greater droplet stability. Also, multiple droplet detection methods can be employed to analyze cellular growth under different conditions, while passive or active sorting methods can be used to acquire particular microdroplet samples downstream. The work presented in this thesis entails the characterization and detailed analysis of all aspects of microdroplet microfluidics necessary to adequately produce a microdroplet co-culture device for microbial studies. This includes the incorporation of multiple microdroplet generators for the production of water droplets immersed in oil serving as bio-reactors for cell culture experiments. In addition, multiple microdroplet synchronization devices were tested to sufficiently align multiple trains of droplets for downstream merging using a variety of passive, active, or combination merging methods. In particular, the use of an electric field can cause destabilization of the surfactant surrounding a microdroplet and allow for the formation of a liquid bridge. The formation of this liquid bridge in conjunction with passive merging methods can lead to droplet electrocoalescence. The incorporation of a more uniform electric field that reduces the angle between the droplet dipole moment and E-field can lead to better droplet merging while reducing voltage and frequency requirements observed in previously publications. The testing, observation, and optimization of such aspects of microdroplet microfluidics are crucial for the advancement and production of sound microdroplet culture devices for a variety of applications including the analysis of dangerous pathogenic substances, drug testing or delivery, and genetic studies.

Guzman, Adrian

2012-08-01T23:59:59.000Z

97

High-Throughput Genetic Identification of Functionally Important Regions of the Yeast DEAD-Box Protein Mss116p  

Science Conference Proceedings (OSTI)

The Saccharomyces cerevisiae DEAD-box protein Mss116p is a general RNA chaperone that functions in splicing mitochondrial group I and group II introns. Recent X-ray crystal structures of Mss116p in complex with ATP analogs and single-stranded RNA show that the helicase core induces a bend in the bound RNA, as in other DEAD-box proteins, while a C-terminal extension (CTE) induces a second bend, resulting in RNA crimping. Here, we illuminate these structures by using high-throughput genetic selections, unigenic evolution, and analyses of in vivo splicing activity to comprehensively identify functionally important regions and permissible amino acid substitutions throughout Mss116p. The functionally important regions include those containing conserved sequence motifs involved in ATP and RNA binding or interdomain interactions, as well as previously unidentified regions, including surface loops that may function in protein-protein interactions. The genetic selections recapitulate major features of the conserved helicase motifs seen in other DEAD-box proteins but also show surprising variations, including multiple novel variants of motif III (SAT). Patterns of amino acid substitutions indicate that the RNA bend induced by the helicase core depends on ionic and hydrogen-bonding interactions with the bound RNA; identify a subset of critically interacting residues; and indicate that the bend induced by the CTE results primarily from a steric block. Finally, we identified two conserved regions - one the previously noted post II region in the helicase core and the other in the CTE - that may help displace or sequester the opposite RNA strand during RNA unwinding.

Mohr, Georg; Del Campo, Mark; Turner, Kathryn G.; Gilman, Benjamin; Wolf, Rachel Z.; Lambowitz, Alan M. (Texas)

2012-03-15T23:59:59.000Z

98

A NOVEL LOW THERMAL BUDGET THIN-FILM POLYSILICON FABRICATION PROCESS FOR LARGE-AREA, HIGH-THROUGHPUT SOLAR CELL PRODUCTION  

DOE Green Energy (OSTI)

methods. The poly-Si solar cell structure and the performance have been examined. In principle, the new process is potentially applicable to produce large-area thin-film poly-Si solar cells at a high throughput and low cost. A critical issue in this process is to prevent the excessive dopant diffusion during crystallization. Process parameters and the cell structure have to be optimized to achieve the production goal.

Yue Kuo

2010-08-15T23:59:59.000Z

99

Synthesis of high intrinsic loss power aqueous ferrofluids of iron oxide nanoparticles by citric acid-assisted hydrothermal-reduction route  

Science Conference Proceedings (OSTI)

Monodispersed aqueous ferrofluids of iron oxide nanoparticle were synthesized by hydrothermal-reduction route. They were characterized by X-ray diffraction analysis, Fourier transform infrared spectroscopy, scanning and transmission electron microscopy and dynamic light scattering. The results showed that certain concentrations of citric acid (CA) are required to obtain only magnetic iron oxides with mean particle sizes around 8 nm. CA acts as a modulator and reducing agent in iron oxide formation which controls nanoparticle size. The XRD, magnetic and heating measurements showed that the temperature and time of hydrothermal reaction can affect the magnetic properties of obtained ferrofluids. The synthesized ferrofluids were stable at pH 7. Their mean hydrodynamic size was around 80 nm with polydispersity index (PDI) of 0.158. The calculated intrinsic loss power (ILP) was 9.4 nHm{sup 2}/kg. So this clean and cheap route is an efficient way to synthesize high ILP aqueous ferrofluids applicable in magnetic hyperthermia. - Graphical abstract: Monodispersed aqueous ferrofluids of iron oxide nanoparticles were synthesized by hydrothermal-reduction method with citric acid as reductant which is an efficient way to synthesize aqueous ferrofluids applicable in magnetic hyperthermia. Highlights: Black-Right-Pointing-Pointer Aqueous iron oxide ferrofluids were synthesized by hydrothermal-reduction route. Black-Right-Pointing-Pointer Citric acid acted as reducing agent and surfactant in the route. Black-Right-Pointing-Pointer This is a facile, low energy and environmental friendly route. Black-Right-Pointing-Pointer The aqueous iron oxide ferrofluids were monodispersed and stable at pH of 7. Black-Right-Pointing-Pointer The calculated intrinsic loss power of the synthesized ferrofluids was very high.

Behdadfar, Behshid, E-mail: bbehdadfar@ma.iut.ac.ir [Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of); Kermanpur, Ahmad [Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111 (Iran, Islamic Republic of); Sadeghi-Aliabadi, Hojjat [School of Pharmacy, Isfahan Pharmaceutical Research Center, Isfahan University of Medical Sciences, Isfahan (Iran, Islamic Republic of); Morales, Maria del Puerto [Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco 28049, Madrid (Spain); Mozaffari, Morteza [Department of Physics, Razi University, Kermanshah (Iran, Islamic Republic of)

2012-03-15T23:59:59.000Z

100

High Throughput, Low Toxic Processing of Very Thin, High Efficiency CIGSS Solar Cells: Final Report, December 2008  

DOE Green Energy (OSTI)

The work carried out during this project presents the use of diethylselenium or other organometallic precursors as low-toxicity alternative selenium sources for preparing a high-quality absorber.

Dhere, N. G.

2009-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Miniaturized Analytical Platforms From Nanoparticle Components: Studies in the Construction, Characterization, and High-Throughput Usage of These Novel Architectures  

Science Conference Proceedings (OSTI)

The scientific community has recently experienced an overall effort to reduce the physical size of many experimental components to the nanometer size range. This size is unique as the characteristics of this regime involve aspects of pure physics, biology, and chemistry. One extensively studied example of a nanometer sized experimental component, which acts as a junction between these three principle scientific theologies, is deoxyribonucleic acid (DNA) or ribonucleic acid (RNA). These biopolymers not only contain the biological genetic guide to code for the production of life-sustaining materials, but are also being probed by physicists as a means to create electrical circuits and furthermore as controllable architectural and sensor motifs in the chemical disciplines. Possibly the most common nano-sized component between these sciences are nanoparticles composed of a variety of materials. The cross discipline employment of nanoparticles is evident from the vast amount of literature that has been produced from each of the individual communities within the last decade. Along these cross-discipline lines, this dissertation examines the use of several different types of nanoparticles with a wide array of surface chemistries to understand their adsorption properties and to construct unique miniaturized analytical and immunoassay platforms. This introduction will act as a literature review to provide key information regarding the synthesis and surface chemistries of several types of nanoparticles. This material will set the stage for a discussion of assembling ordered arrays of nanoparticles into functional platforms, architectures, and sensors. The introduction will also include a short explanation of the atomic force microscope that is used throughout the thesis to characterize the nanoparticle-based structures. Following the Introduction, four research chapters are presented as separate manuscripts. Chapter 1 examines the self-assembly of polymeric nanoparticles exhibiting a variety of surface chemistries and attempts to deconvolute general adsorption rules for their assembly on various substrates. Chapter 2 extends the usage of self-assembly of polymeric nanoparticles through a layer-by-layer deposition concept and photolithography methodologies to create analytical platforms with a vertical height controlled within the nanometer regime. This platform is then furthered in Chapter 3 by employing this integrated concept as a bio-recognition platform, with the extension of the method to a high-throughput screening system explored. Chapter 4 exploits two different types of nanoparticles, silica and gold, as multiplexed, self-assembled immunoassay sensors. This final research chapter is followed by a general summation and future prospectus section that concludes the dissertation.

Andrew David Pris

2003-08-05T23:59:59.000Z

102

MATRIX 2 RESULTS OF THE FY07 ENHANCED DOE HIGH-LEVEL WASTE MELTER THROUGHPUT STUDIES AT SRNL  

SciTech Connect

High-level waste (HLW) throughput (i.e., the amount of waste processed per unit time) is a function of two critical parameters: waste loading (WL) and melt rate. For the Waste Treatment and Immobilization Plant (WTP) at the Hanford Site and the Defense Waste Processing Facility (DWPF) at the Savannah River Site (SRS), increasing HLW throughput would significantly reduce the overall mission life cycle costs for the Department of Energy (DOE). The objective of this study was to generate supplemental validation data that could be used to determine the applicability of the current liquidus temperature (TL) model to expanded DWPF glass composition regions of interest based on higher WLs. Two specific flowsheets were used in this study to provide such insight: (1) Higher WL glasses (45 and 50%) based on future sludge batches that have (and have not) undergone the Al-dissolution process. (2) Coupled operations supported by the Salt Waste Processing Facility (SWPF), which increase the TiO{sub 2} concentration in glass to greater than 2 wt%. Glasses were also selected to address technical issues associated with Al{sub 2}O{sub 3} solubility, nepheline formation, and homogeneity issues for coupled operations. A test matrix of 28 glass compositions was developed to provide insight into these issues. The glasses were fabricated and characterized using chemical composition analysis, X-ray Diffraction (XRD), TL measurement and the Product Consistency Test (PCT). The results of this study are summarized below: (1) TiO{sub 2} concentrations up to {approx} 3.5 wt% were retained in DWPF type glasses, where retention is defined as the absence of crystalline TiO{sub 2} (i.e., unreacted or undissolved) in the as-fabricated glasses. Although this TiO{sub 2} content does not bound the projected SWPF high output flowsheet (up to 6 wt% TiO{sub 2} may be required in glass), these data demonstrate the potential for increasing the TiO{sub 2} limit in glass above the current limit of 2 wt% (based strictly on retention or solubility). (2) For those study glasses that had very close compositional overlap with the model development and/or model validation ranges of the current DWPF TL model (except TiO{sub 2} and MgO concentrations), there was very little difference in the predicted and measured TL values. Even though the TiO{sub 2} concentrations were above the 2 wt% upper limit, the results indicate that the current T{sub L} model is applicable in this compositional region with TiO{sub 2} contents up to approximately 3.5 wt%. (3) As the target glass compositions diverge from the model development and validation ranges, the T{sub L} data suggest that the model under-predicted the measured values. These discrepancies imply that there are individual oxides or oxide combinations that need to be accounted for in the model. These oxides include B{sub 2}O{sub 3}, SiO{sub 2}, MnO, TiO{sub 2} and/or their combinations. More data would be required to fill in these anticipated DWPF compositional regions for higher WL glasses so that the model coefficients could be refit to account for these differences. (4) Based on PCT response of HWL-21 and HWL-22 (two glasses that were prone to nepheline formation) it appears that increasing the B{sub 2}O{sub 3} concentration in glass does not consistently suppress the formation of nepheline in glasses with higher Al{sub 2}O{sub 3} and/or Na{sub 2}O content. Although the chemical durabilities of the quenched versions of these glasses were very acceptable, the canister centerline cooled (ccc) glasses exhibited a considerable decrease in durability and were found to contain nepheline via XRD. In fact, one of the glasses had a release that was 5 times greater than that of the Environmental Assessment (EA) benchmark glass. These results suggest a need for a more fundamental understanding of the compositional and kinetic effects of nepheline formation in high WL glasses. (5) Data have been generated in support of the replacement of the homogeneity constraint with the Al{sub 2}O{sub 3} and/or sum of alkali constraints for coupled o

Raszewski, F; Tommy Edwards, T; David Peeler, D

2008-10-23T23:59:59.000Z

103

Co-hydrolysis of hydrothermal and dilute acid pretreated Populus slurries to support development of a high-throughput pretreatment system  

E-Print Network (OSTI)

system. Biotechnology for Biofuels 2011 Submit your nextStuder et al. Biotechnology for Biofuels 2011, 4:19 http://Studer et al. Biotechnology for Biofuels 2011, 4:19 http://

Studer, Michael H; Brethauer, Simone; DeMartini, Jaclyn D; McKenzie, Heather L; Wyman, Charles E

2011-01-01T23:59:59.000Z

104

Research Leading to High Throughput Manufacturing of Thin-Film CdTe PV Modules: Annual Technical Report, September 2003-September 2004  

DOE Green Energy (OSTI)

First Solar is actively commercializing CdTe-based thin-film photovoltaics. During the past year, major additions of production capability have been completed, as well as process improvements to achieve higher throughput and efficiency and greater durability. This report presents the results of Phase II of the subcontract, entitled ''Research Leading to High Throughput Manufacturing of Thin-Film CdTe PV Modules.'' The subcontract supports several important aspects needed for high-volume manufacturing of high-efficiency modules, including exploration of large-area advanced front-contact window layers, improvements of the semiconductor deposition system, advancement in understanding of post-deposition processing steps and accelerated life testing methods, and progress in the environmental, health and safety programs. Work under this subcontract contributes to the overall manufacturing operation. During Phase II, average module efficiency (total area) on the production line was improved from 7.9% to 8.6% due primarily to process optimization. At the same, time production volume for commercial sales increased from 2.5 MW in 2003 to an estimated 6 MW in 2004. Much of the new 25 MW/yr production line has been qualified, and production volume is steadily increasing.

Powell, R. C.

2004-12-01T23:59:59.000Z

105

Hydrothermal Liquefaction of Biomass  

SciTech Connect

Hydrothermal liquefaction technology is describes in its relationship to fast pyrolysis of biomass. The scope of work at PNNL is discussed and some intial results are presented. HydroThermal Liquefaction (HTL), called high-pressure liquefaction in earlier years, is an alternative process for conversion of biomass into liquid products. Some experts consider it to be pyrolysis in solvent phase. It is typically performed at about 350 C and 200 atm pressure such that the water carrier for biomass slurry is maintained in a liquid phase, i.e. below super-critical conditions. In some applications catalysts and/or reducing gases have been added to the system with the expectation of producing higher yields of higher quality products. Slurry agents ('carriers') evaluated have included water, various hydrocarbon oils and recycled bio-oil. High-pressure pumping of biomass slurry has been a major limitation in the process development. Process research in this field faded away in the 1990s except for the HydroThermal Upgrading (HTU) effort in the Netherlands, but has new resurgence with other renewable fuels in light of the increased oil prices and climate change concerns. Research restarted at Pacific Northwest National Laboratory (PNNL) in 2007 with a project, 'HydroThermal Liquefaction of Agricultural and Biorefinery Residues' with partners Archer-Daniels-Midland Company and ConocoPhillips. Through bench-scale experimentation in a continuous-flow system this project investigated the bio-oil yield and quality that could be achieved from a range of biomass feedstocks and derivatives. The project was completed earlier this year with the issuance of the final report. HydroThermal Liquefaction research continues within the National Advanced Biofuels Consortium with the effort focused at PNNL. The bench-scale reactor is being used for conversion of lignocellulosic biomass including pine forest residue and corn stover. A complementary project is an international collaboration with Canada to investigate kelp (seaweed) as a biomass feedstock. The collaborative project includes process testing of the kelp in HydroThermal Liquefaction in the bench-scale unit at PNNL. HydroThermal Liquefaction at PNNL is performed in the hydrothermal processing bench-scale reactor system. Slurries of biomass are prepared in the laboratory from whole ground biomass materials. Both wet processing and dry processing mills can be used, but the wet milling to final slurry is accomplished in a stirred ball mill filled with angle-cut stainless steel shot. The PNNL HTL system, as shown in the figure, is a continuous-flow system including a 1-litre stirred tank preheater/reactor, which can be connected to a 1-litre tubular reactor. The product is filtered at high-pressure to remove mineral precipitate before it is collected in the two high-pressure collectors, which allow the liquid products to be collected batchwise and recovered alternately from the process flow. The filter can be intermittently back-flushed as needed during the run to maintain operation. By-product gas is vented out the wet test meter for volume measurement and samples are collected for gas chromatography compositional analysis. The bio-oil product is analyzed for elemental content in order to calculate mass and elemental balances around the experiments. Detailed chemical analysis is performed by gas chromatography-mass spectrometry and 13-C nuclear magnetic resonance is used to evaluate functional group types in the bio-oil. Sufficient product is produced to allow subsequent catalytic hydroprocessing to produce liquid hydrocarbon fuels. The product bio-oil from hydrothermal liquefaction is typically a more viscous product compared to fast pyrolysis bio-oil. There are several reasons for this difference. The HTL bio-oil contains a lower level of oxygen because of more extensive secondary reaction of the pyrolysis products. There are less amounts of the many light oxygenates derived from the carbohydrate structures as they have been further reacted to phenolic Aldol condensation products. The bio-oil

Elliott, Douglas C.

2010-12-10T23:59:59.000Z

106

Carbon dioxide-assisted fabrication of highly uniform submicron-sized colloidal carbon spheres via hydrothermal carbonization using soft drink  

SciTech Connect

An eco-friendly and economical method for the formation of uniform-sized carbon spheres by hydrothermal dehydration/condensation of a commercial carbonated beverage at 200 oC is reported. CO2 dissolved in the beverage accelerates the dehydration kinetics of the dissolved sugar molecules leading to production of homogeneous carbon spheres having a diameter less than 850 nm. In the presence of CO2, the rough surface of these carbon spheres likely results from continuous Ostwald ripening of constituent microscopic carbon-containing spheres that are formed by subsequent polymerization of intermediate HMF molecules.

Moon, Gun-Hee; Shin, Yongsoon; Arey, Bruce W.; Wang, Chong M.; Exarhos, Gregory J.; Choi, Wonyong; Liu, Jun

2012-10-01T23:59:59.000Z

107

Hydrothermal Reservoirs | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Reservoirs Hydrothermal Reservoirs Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Hydrothermal Reservoirs Dictionary.png Hydrothermal Reservoir: Hydrothermal Reservoirs are underground zones of porous rock containing hot water and steam, and can be naturally occurring or human-made. Other definitions:Wikipedia Reegle Natural, shallow hydrothermal reservoirs naturally occurring hot water reservoirs, typically found at depths of less than 5 km below the Earth's surface where there is heat, water and a permeable material (permeability in rock formations results from fractures, joints, pores, etc.). Often, hydrothermal reservoirs have an overlying layer that bounds the reservoir and also serves as a thermal insulator, allowing greater heat retention. If hydrothermal reservoirs

108

Technology Support for High-Throughput Processing of Thin-Film CdTe PV Modules: Final Technical Report, April 1998 - October 2001  

DOE Green Energy (OSTI)

This report describes the significant progress made in four areas of this subcontract: process and equipment development; efficiency improvement; characterization and analysis; and environmental, health, and safety. As part of the process and equipment development effort, vapor-transport deposition (VTD) was implemented first on a 60-cm-web pilot-production system, then on a 120-cm-web high-throughput coater. Deposition of CdS and CdTe films at a throughput of 3 m2/min was demonstrated, and more than 56,000 plates (each 0.72 m2) were coated -- 16 times the total number coated prior to the start of the contract. Progress was also made in the conversion efficiency and yield of both standard and next-generation modules, with data from more than 3000 sequentially deposited modules having an average total-area conversion efficiency of 7% and next-generation modules produced with efficiency as high as 9.3% (10.15% aperture-area efficiency as measured by NREL). Successful implementation o f in-situ CdS thickness measurements was important to progress in thickness uniformity and control. Net CdTe material utilization of 82% was demonstrated. The ability to raise the utilization further was shown with the demonstration of inherent CdS and CdTe material utilizations of over 90%. Post-CdTe-deposition process development, which included process space exploration and problem diagnosis, was an important part of advances in efficiency and yield. As part of the efficiency-improvement task, research was done on cells and modules with reduced CdS thickness to increase photocurrent.

Rose, D. H.; Powell, R. C.

2002-04-01T23:59:59.000Z

109

DOVIS: A Tool for High-throughput Virtual Screening Xiaohui Jiang, Kamal Kumar, Anders Wallqvist, and Jaques Reifman  

E-Print Network (OSTI)

on and capture the top percentage of high-scoring ligands are high performance computing (HPC) platforms

110

Abstract--Most high-throughput experimental results of protein-protein interactions (PPIs) are seemingly inconsistent  

E-Print Network (OSTI)

Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology

111

Hydrothermal System | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal System Hydrothermal System (Redirected from Hydrothermal Systems) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Systems Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps Dictionary.png Hydrothermal Systems: A hydrothermal system is one that included fluid, heat, and permeability in a naturally occurring geological formation for the production of electricity. Other definitions:Wikipedia Reegle Geothermal production well at Imperial Valley, California. The drilling of production wells, such as this one in southern California, results in

112

Surficial Extent And Conceptual Model Of Hydrothermal System At Mount  

Open Energy Info (EERE)

Surficial Extent And Conceptual Model Of Hydrothermal System At Mount Surficial Extent And Conceptual Model Of Hydrothermal System At Mount Rainier, Washington Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Surficial Extent And Conceptual Model Of Hydrothermal System At Mount Rainier, Washington Details Activities (4) Areas (2) Regions (0) Abstract: A once massive hydrothermal system was disgorged from the summit of Mount Rainier in a highly destructive manner about 5000 years ago. Today, hydrothermal processes are depositing clayey alteration products that have the potential to reset the stage for similar events in the future. Areas of active hydrothermal alteration occur in three representative settings: 1. (1) An extensive area (greater than 12,000 m2) of heated ground and slightly acidic boiling-point fumaroles at 76-82°C at

113

HIV-1 entry inhibition by small-molecule CCR5 antagonists: A combined molecular modeling and mutant study using a high-throughput assay  

Science Conference Proceedings (OSTI)

Based on the attrition rate of CCR5 small molecule antagonists in the clinic the discovery and development of next generation antagonists with an improved pharmacology and safety profile is necessary. Herein, we describe a combined molecular modeling, CCR5-mediated cell fusion, and receptor site-directed mutagenesis approach to study the molecular interactions of six structurally diverse compounds (aplaviroc, maraviroc, vicriviroc, TAK-779, SCH-C and a benzyloxycarbonyl-aminopiperidin-1-yl-butane derivative) with CCR5, a coreceptor for CCR5-tropic HIV-1 strains. This is the first study using an antifusogenic assay, a model of the interaction of the gp120 envelope protein with CCR5. This assay avoids the use of radioactivity and HIV infection assays, and can be used in a high throughput mode. The assay was validated by comparison with other established CCR5 assays. Given the hydrophobic nature of the binding pocket several binding models are suggested which could prove useful in the rational drug design of new lead compounds.

Labrecque, Jean [Department of Biology, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States); Metz, Markus [Department of Chemistry, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States); Lau, Gloria; Darkes, Marilyn C.; Wong, Rebecca S.Y. [Department of Biology, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States); Bogucki, David; Carpenter, Bryon; Chen Gang; Li Tongshuang; Nan, Susan [Department of Chemistry, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States); Schols, Dominique [Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000, Leuven (Belgium); Bridger, Gary J. [Department of Chemistry, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States); Fricker, Simon P. [Department of Biology, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States); Skerlj, Renato T., E-mail: renato.skerlj@genzyme.co [Department of Chemistry, AnorMED Inc. now Genzyme Corporation, 500 Kendall Street, Cambridge, MA 02142 (United States)

2011-05-10T23:59:59.000Z

114

A NOVEL LOW THERMAL BUDGET THIN-FILM POLYSILICON FABRICATION PROCESS FOR LARGE-AREA, HIGH-THROUGHPUT SOLAR CELL PRODUCTION  

SciTech Connect

A novel thin-film poly-Si fabrication process has been demonstrated. This low thermal budget process transforms the single- and multi-layer amorphous silicon thin films into a poly-Si structure in one simple step over a pulsed rapid thermal annealing process with the enhancement of an ultrathin Ni layer. The complete poly-Si solar cell was fabricated in a short period of time without deteriorating the underneath glass substrate. The unique vertical crystallization process including the mechanism is discussed. Influences of the dopant type and process parameters on crystal structure will be revealed. The poly-Si film structure has been proved using TEM, XRD, Raman, and XPS methods. The poly-Si solar cell structure and the performance have been examined. In principle, the new process is potentially applicable to produce large-area thin-film poly-Si solar cells at a high throughput and low cost. A critical issue in this process is to prevent the excessive dopant diffusion during crystallization. Process parameters and the cell structure have to be optimized to achieve the production goal.

Yue Kuo

2010-08-15T23:59:59.000Z

115

'Sifting the significance from the data' - the impact of high-throughput genomic technologies on human genetics and health care  

E-Print Network (OSTI)

be particularly high for common diseases. Mapping the ‘polygenes’ Krawczak also discussed the limitations of the available strategies for mapping the loci which contribute to the common, complex disorders. The power of the affected sib pair (ASP) linkage approach... , Latimer C, Dicks E, Menzies A, Stephens P, Blow M, Greenman C, Xue Y, Tyler- Smith C, Thompson D, Gray K, Andrews J, Barthorpe S, Buck G, Cole J, Dunmore R, Jones D, Maddison M, Mironenko T, Turner R, Turrell K, Varian J, West S, Widaa S, et al: A...

Clarke, Angus J; Cooper, David N; Krawczak, Michael; Tyler-Smith, Chris; Wallace, Helen M; Wilkie, Andrew O M; Raymond, Frances L; Chadwick, Ruth; Craddock, Nick; John, Ros; Gallacher, John; Chiano, Mathias

2012-08-02T23:59:59.000Z

116

Research Leading to High Throughput Processing of Thin-Film CdTe PV Module: Phase I Annual Report, October 2003 (Revised)  

DOE Green Energy (OSTI)

Work under this subcontract contributes to the overall manufacturing operation. During Phase I, average module efficiency on the line was improved from 7.1% to 7.9%, due primarily to increased photocurrent resulting from a decrease in CdS thickness. At the same time, production volume for commercial sale increased from 1.5 to 2.5 MW/yr. First Solar is committed to commercializing CdTe-based thin-film photovoltaics. This commercialization effort includes a major addition of floor space and equipment, as well as process improvements to achieve higher efficiency and greater durability. This report presents the results of Phase I of the subcontract entitled''Research Leading to High Throughput Processing of Thin-Film CdTe PV Modules.'' The subcontract supports several important aspects needed to begin high-volume manufacturing, including further development of the semiconductor deposition reactor, advancement of accelerated life testing methods and understanding, and improvements to th e environmental, health, and safety programs. Progress in the development of the semiconductor deposition reactor was made in several areas. First, a new style of vapor transport deposition distributor with simpler operational behavior and the potential for improved cross-web uniformity was demonstrated. Second, an improved CdS feed system that will improve down-web uniformity was developed. Third, the core of a numerical model of fluid and heat flow within the distributor was developed, including flow in a 3-component gas system at high temperature and low pressure and particle sublimation.

Powell, R. C.; Meyers, P. V.

2004-02-01T23:59:59.000Z

117

hydrothermal | OpenEI  

Open Energy Info (EERE)

hydrothermal hydrothermal Dataset Summary Description No description given. Source National Renewable Energy Laboratory Date Released July 03rd, 2012 (2 years ago) Date Updated July 03rd, 2012 (2 years ago) Keywords biopower csp geothermal hydropower hydrothermal Renewable Energy Technical Potential rooftop United States utility-scale wind Data text/csv icon United States Renewable Energy Technical Potential (csv, 7.7 KiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote

118

Reproducible, High-Throughput Synthesis  

NLE Websites -- All DOE Office Websites (Extended Search)

J. Proc. Natl. Acad. Sci. U.S.A. 2009, 106, 10917-10921. (9) Han, G.; Mokari, T.; Ajo-Franklin, C.; Cohen, B. E. J. Am. Chem. Soc. 2008, 130, 15811-15813. (10) Colvin, V. L.;...

119

Hydrothermal Alteration | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Alteration Hydrothermal Alteration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Alteration Dictionary.png Hydrothermal Alteration: No definition has been provided for this term. Add a Definition Opalized rock is often valued for its spectacular colors and it may indicate past hydrothermal activity (reference: https://uwaterloo.ca/earth-sciences-museum/what-earth/what-earth-minerals/what-earth-precious-opal) The heat and minerals of hydrothermal waters may result in the chemical alteration of rocks that it comes in contact with. The minerals that result from this alteration may be evidence of past hydrothermal activity. Opalization - alteration to opal. Argillization- alteration to clay minerals such as smectite, illite, and kaolinite which often form caprocks.

120

2011 DoD High Performance Computing Modernization Program Users Group Conference A Web-based High-Throughput Tool for Next-Generation Sequence Annotation  

E-Print Network (OSTI)

320 2011 DoD High Performance Computing Modernization Program Users Group Conference A Web deployed on the Mana Linux cluster at the Maui High Performance Computing Center. The two components

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121

Rational control of hydrothermal nanowire synthesis and its applications  

E-Print Network (OSTI)

Hydrothermal nanowire synthesis is a rapidly emerging nanowire discipline that enables low temperature growth and batch process. It has a major impact on the development of novel energy conversion devices, high density ...

Joo, Jaebum

2010-01-01T23:59:59.000Z

122

Hydrothermal System | Open Energy Information  

Open Energy Info (EERE)

(Redirected from Hydrothermal) (Redirected from Hydrothermal) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Systems Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps Dictionary.png Hydrothermal Systems: A hydrothermal system is one that included fluid, heat, and permeability in a naturally occurring geological formation for the production of electricity. Other definitions:Wikipedia Reegle Geothermal production well at Imperial Valley, California. The drilling of production wells, such as this one in southern California, results in one-third to one-half of the cost of a geothermal project. Copyright ©

123

Hydrothermal Deposition | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Deposition Hydrothermal Deposition Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Deposition Dictionary.png Hydrothermal Deposition: No definition has been provided for this term. Add a Definition Quartz veins indicate ancient fluid flow, possibly the result of a hydrothermal system (reference: http://www.nvcc.edu/home/cbentley/dc_rocks/) Tufa mounds indicate the location of extinct hot springs. In this photo they show the ancient extent of the surface manifestations at Mono Lake, CA (reference: http://news.medill.northwestern.edu/climatechange/page.aspx?id=170704)(photo by Scott Stine) Hydrothermal water carries minerals as it travels through the crust. These minerals are often deposited as pressure decreases as the fluid approaches

124

Correlation of hydrothermal sericite composition with permeability and  

Open Energy Info (EERE)

Correlation of hydrothermal sericite composition with permeability and Correlation of hydrothermal sericite composition with permeability and temperature, Coso Hot Springs geothermal field, Inyo County, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Correlation of hydrothermal sericite composition with permeability and temperature, Coso Hot Springs geothermal field, Inyo County, California Details Activities (1) Areas (1) Regions (0) Abstract: Petrographic and geochemical analyses of cuttings from six wells in the Coso Hot Springs geothermal field show a systematic variation in the occurrence, texture, and composition of sericite that can be correlated with high permeability production zones and temperature. The wells studied intersect rhyolitic dikes and sills in the fractured granitic and dioritic

125

Quaternary 1T-2MTJ Cell Circuit for a High-Density and a High-Throughput Nonvolatile Bit-Serial CAM  

Science Conference Proceedings (OSTI)

A compact quaternary cell circuit using a single MOS transistor and two magnetic tunnel junction devices (1T-2MTJ) is proposed for a high-density nonvolatile bit-serial content-addressable memory (CAM). The use of quaternary CAM-cell structure makes ... Keywords: Low-Power, Compact, Spintronics, Magnetic Tunnel Junction, MTJ, MOS/MTJ-hybrid, Logic-in-Memory, Fine-Grain, Power Gating

Shoun Matsunaga; Takahiro Hanyu

2012-05-01T23:59:59.000Z

126

Rapid microwave hydrothermal synthesis of ZnGa{sub 2}O{sub 4} with high photocatalytic activity toward aromatic compounds in air and dyes in liquid water  

Science Conference Proceedings (OSTI)

ZnGa{sub 2}O{sub 4} was synthesized from Ga(NO{sub 3}){sub 3} and ZnCl{sub 2} via a rapid and facile microwave-assisted hydrothermal method. The photocatalytic properties of the as-prepared ZnGa{sub 2}O{sub 4} were evaluated by the degradation of pollutants in air and aqueous solution under ultraviolet (UV) light illumination. The results demonstrated that ZnGa{sub 2}O{sub 4} had exhibited efficient photocatalytic activities higher than that of commercial P25 (Degussa Co.) in the degradation of benzene, toluene, and ethylbenzene, respectively. In the liquid phase degradation of dyes (methyl orange, Rhodamine B, and methylene blue), ZnGa{sub 2}O{sub 4} has also exhibited remarkable activities higher than that of P25. After 32 min of UV light irradiation, the decomposition ratio of methyl orange (10 ppm, 150 mL) over ZnGa{sub 2}O{sub 4} (0.06 g) was up to 99%. The TOC tests revealed that the mineralization ratio of MO (10 ppm, 150 mL) was 88.1% after 90 min of reaction. A possible mechanism of the photocatalysis over ZnGa{sub 2}O{sub 4} was also proposed. - Graphical abstract: In the degradation of RhB under UV light irradiation, ZnGa{sub 2}O{sub 4} had exhibited efficient photo-activity, and after only 24 min of irradiation the decomposition ratio was up to 99.8%. Highlights: Black-Right-Pointing-Pointer A rapid and facile M-H method to synthesize ZnGa{sub 2}O{sub 4} photocatalyst. Black-Right-Pointing-Pointer The photocatalyst exhibits high activity toward benzene and dyes. Black-Right-Pointing-Pointer The catalyst possesses more surface hydroxyl sites than TiO{sub 2} (P25). Black-Right-Pointing-Pointer Deep oxidation of different aromatic compounds and dyes over catalyst.

Sun Meng [School of Resources and Environment, University of Jinan, Jinan 250022 (China); Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002 (China); Li Danzhen, E-mail: dzli@fzu.edu.cn [Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002 (China); Zhang Wenjuan; Chen Zhixin; Huang Hanjie; Li Wenjuan; He Yunhui; Fu Xianzhi [Research Institute of Photocatalysis, State Key Laboratory Breeding Base of Photocatalysis, Fuzhou University, Fuzhou 350002 (China)

2012-06-15T23:59:59.000Z

127

Hyperbaric hydrothermal atomic force microscope  

SciTech Connect

A hyperbaric hydrothermal atomic force microscope (AFM) is provided to image solid surfaces in fluids, either liquid or gas, at pressures greater than normal atmospheric pressure. The sample can be heated and its surface imaged in aqueous solution at temperatures greater than 100.degree. C. with less than 1 nm vertical resolution. A gas pressurized microscope base chamber houses the stepper motor and piezoelectric scanner. A chemically inert, flexible membrane separates this base chamber from the sample cell environment and constrains a high temperature, pressurized liquid or gas in the sample cell while allowing movement of the scanner. The sample cell is designed for continuous flow of liquid or gas through the sample environment.

Knauss, Kevin G. (Livermore, CA); Boro, Carl O. (Milpitas, CA); Higgins, Steven R. (Laramie, WY); Eggleston, Carrick M. (Laramie, WY)

2002-01-01T23:59:59.000Z

128

Hydrothermal Energy Conversion Technology  

SciTech Connect

The goal of the Hydrothermal Program is to develop concepts which allow better utilization of geothermal energy to reduce the life-cycle cost of producing electricity from liquid-dominated, hydrothermal resources. Research in the program is currently ongoing in three areas: (1) Heat Cycle Research, which is looking at methods to increase binary plant efficiencies; (2) Materials Development, which is developing materials for use in geothermal associated environments; and (3) Advanced Brine Chemistry, with work taking place in both the brine chemistry modeling area and waste disposal area. The presentations during this session reviewed the accomplishments and activities taking place in the hydrothermal energy conversion program. Lawrence Kukacka, Brookhaven National Laboratory, discussed advancements being made to develop materials for use in geothermal applications. This research has identified a large number of potential materials for use in applications from pipe liners that inhibit scale buildup and reduce corrosion to elastomers for downhole use. Carl J. Bliem, Idaho National Engineering Laboratory, discussed preparations currently underway to conduct field investigations of the condensation behavior of supersaturated turbine expansions. The research will evaluate whether the projected 8% to 10% improvement in brine utilization can be realized by allowing these expansions. Eugene T. Premuzic, Brookhaven National Laboratory, discussed advancements being made using biotechnology for treatment of geothermal residual waste; the various process options were discussed in terms of biotreatment variables. A treatment scenario and potential disposal costs were presented. John H. Weare, University of California, San Diego, discussed the present capabilities of the brine chemistry model he has developed for geothermal applications and the information it can provide a user. This model is available to industry. The accomplishments from the research projects presented in this session have been many. It is hoped that these accomplishments can be integrated into industrial geothermal power plant sites to assist in realizing the goal of reducing the cost of energy produced from the geothermal resource.

Robertson, David W.; LaSala, Raymond J.

1992-03-24T23:59:59.000Z

129

Cody hydrothermal system  

DOE Green Energy (OSTI)

The hot springs of Colter's Hell are the surface manifestations of a much larger hydothermal system. That system has been studied to define its extent, maximum temperature, and mechanism of operation. The study area covers 2700 km/sup 2/ (1040 mi/sup 2/) in northwest Wyoming. Research and field work included locating and sampling the hot springs, geologic mapping, thermal logging of available wells, measuring thermal conductivities, analyzing over 200 oil and gas well bottom-hole temperatures, and compiling and analyzing hydrologic data. These data were used to generate a model for the hydrothermal system.

Heasler, H.P.

1982-01-01T23:59:59.000Z

130

Methods to enhance the characteristics of hydrothermally prepared slurry fuels  

DOE Patents (OSTI)

Methods for enhancing the flow behavior and stability of hydrothermally treated slurry fuels. A mechanical high-shear dispersion and homogenization device is used to shear the slurry fuel. Other improvements include blending the carbonaceous material with a form of coal to reduce or eliminate the flocculation of the slurry, and maintaining the temperature of the hydrothermal treatment between approximately 300.degree. to 350.degree. C.

Anderson, Chris M. (Shakopee, MN); Musich, Mark A. (Grand Forks, ND); Mann, Michael D. (Thompson, ND); DeWall, Raymond A. (Grand Forks, ND); Richter, John J. (Grand Forks, ND); Potas, Todd A. (Plymouth, MN); Willson, Warrack G. (Fairbanks, AK)

2000-01-01T23:59:59.000Z

131

Base hydrolysis and hydrothermal processing of PBX-9404  

SciTech Connect

Base hydrolysis in combination with hydrothermal processing has been proposed as an environmentally acceptable alternative to open burning/open detonation for degradation and destruction of high explosives. In this report, the authors examine gaseous and aqueous products of base hydrolysis of the HMX-based plastic bonded explosive, PBX-9404. They also examined products from the subsequent hydrothermal treatment of the base hydrolysate. The gases produced from hydrolysis of PBX-9404 are ammonia, nitrous oxide, and nitrogen. Major aqueous products are sodium formate, acetate, nitrate, and nitrite, but not all carbon products have been identified. Hydrothermal processing of base hydrolysate destroyed up to 98% of the organic carbon in solution, and higher destruction efficiencies are possible. Major gas products detected from hydrothermal processing were nitrogen and nitrous oxide.

Flesner, R.L.; Spontarelli, T.; Dell`Orco, P.C.; Sanchez, J.A.

1994-11-01T23:59:59.000Z

132

Throughput maximization in UWB-based ad-hoc networks  

E-Print Network (OSTI)

Abstract In this paper, we study the problem of radio resource allocation, both transmission rates and transmission powers, so as to maximize the throughput of UWB wireless ad-hoc networks. Our analysis is based on the packet-success function (PSF), which is defined as the probability of a data packet being successfully received as a function of the receiver’s signal-to-interference-and-noise-ratio (SINR). We find an optimal link transmission rate, which maximizes the link’s throughput and is dependent on the all active links transmission powers. If each link transmission rate is adapted to this optimal link transmission rate, then, with single-link operation (i.e., no other interference sources are present), the link’s throughput is directly proportional to the transmitter’s power and increases indefinitely with increasing transmission power. However, with multiplelinks operation and interference each other, as each link transmitting power increases, so does the interference level, and the total network throughput approaches a constant other than infinite. Thus, for sufficiently small transmission power, the total network throughput of the multiple-links case exceeds the throughput of the single-link case, but the reverse happens for high power. In addition, this paper reveals that, as the number of concurrently transmitting links increases, regardless of the power level, the maximal total network throughput approaches a constant, with each link’s throughput approaching zero. To maximize the network throughput, for the case of small maximal transmission power with weak interference levels, the optimal transmission scheduling

Zou Chuanyun; Haas Zygmunt J; Zou Sheng

2009-01-01T23:59:59.000Z

133

Hydrothermal System | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Systems Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps Dictionary.png Hydrothermal Systems: A hydrothermal system is one that included fluid, heat, and permeability in a naturally occurring geological formation for the production of electricity. Other definitions:Wikipedia Reegle Geothermal production well at Imperial Valley, California. The drilling of production wells, such as this one in southern California, results in one-third to one-half of the cost of a geothermal project. Copyright ©

134

Fractionation of Boron Isotopes in Icelandic Hydrothermal Systems  

DOE Green Energy (OSTI)

Boron isotope ratios have been determined in a variety of different geothermal waters from hydrothermal systems across Iceland. Isotope ratios from the high temperature meteoric water recharged systems reflect the isotope ratio of the host rocks without any apparent fractionation. Seawater recharged geothermal systems exhibit more positive {delta}{sup 11}B values than the meteoric water recharged geothermal systems. Water/rock ratios can be assessed from boron isotope ratios in the saline hydrothermal systems. Low temperature hydrothermal systems also exhibit more positive {delta}{sup 11}B than the high temperature systems, indicating fractionation of boron due to adsorption of the lighter isotope onto secondary minerals. Fractionation of boron in carbonate deposits may indicate the level of equilibrium attained within the systems.

Aggarwal, J.K.; Palmer, M.R.

1995-01-01T23:59:59.000Z

135

Development of a Hydrothermal Spallation Drilling System for EGS Geothermal  

Open Energy Info (EERE)

Hydrothermal Spallation Drilling System for EGS Geothermal Hydrothermal Spallation Drilling System for EGS Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Development of a Hydrothermal Spallation Drilling System for EGS Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Drilling Systems Project Description Potter Drilling has recently demonstrated hydrothermal spallation drilling in the laboratory. Hydrothermal spallation drilling creates boreholes using a focused jet of superheated water, separating individual grains ("spalls") from the rock surface without contact between the rock and the drill head. This process virtually eliminates the need for tripping. Previous tests of flame-jet spallation achieved ROP of 50 ft/hr and higher in hard rock with minimal wear on the drilling assembly, but operating this technology in an air-filled borehole created challenges related to cuttings transport and borehole stability. The Potter Drilling system uses a water based jet technology in a fluid-filled borehole and as a result has the potential to achieve similarly high ROP that is uncompromised by stability or cuttings transport issues.

136

Throughput-competitive advance reservation with bounded path dispersion  

Science Conference Proceedings (OSTI)

In response to the high throughput needs of grid and cloud computing applications, several production networks have recently started to support advance reservation of dedicated circuits. An important open problem within this context is to devise advance ... Keywords: approximation algorithms, high-speed networks, routing, scheduling

Reuven Cohen; Niloofar Fazlollahi; David Starobinski

2011-10-01T23:59:59.000Z

137

Structural Settings Of Hydrothermal Outflow- Fracture Permeability  

Open Energy Info (EERE)

Settings Of Hydrothermal Outflow- Fracture Permeability Settings Of Hydrothermal Outflow- Fracture Permeability Maintained By Fault Propagation And Interaction Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Structural Settings Of Hydrothermal Outflow- Fracture Permeability Maintained By Fault Propagation And Interaction Details Activities (1) Areas (1) Regions (0) Abstract: Hydrothermal outflow occurs most commonly at the terminations of individual faults and where multiple faults interact. These areas of fault propagation and interaction are sites of elevated stress termed breakdown regions. Here, stress concentrations cause active fracturing and continual re-opening of fluid-flow conduits, permitting long-lived hydrothermal flow despite potential clogging of fractures due to mineral precipitation. As

138

Modeling of the fault-controlled hydrothermal ore-forming systems  

DOE Green Energy (OSTI)

A necessary precondition for the formation of hydrothermal ore deposits is a strong focusing of hydrothermal flow as fluids move from the fluid source to the site of ore deposition. The spatial distribution of hydrothermal deposits favors the concept that such fluid flow focusing is controlled, for the most part, by regional faults which provide a low resistance path for hydrothermal solutions. Results of electric analog simulations, analytical solutions, and computer simulations of the fluid flow, in a fault-controlled single-pass advective system, confirm this concept. The influence of the fluid flow focusing on the heat and mass transfer in a single-pass advective system was investigated for a simplified version of the metamorphic model for the genesis of greenstone-hosted gold deposits. The spatial distribution of ore mineralization, predicted by computer simulation, is in reasonable agreement with geological observations. Computer simulations of the fault-controlled thermoconvective system revealed a complex pattern of mixing hydrothermal solutions in the model, which also simulates the development of the modern hydrothermal systems on the ocean floor. The specific feature of the model considered, is the development under certain conditions of an intra-fault convective cell that operates essentially independently of the large scale circulation. These and other results obtained during the study indicate that modeling of natural fault-controlled hydrothermal systems is instructive for the analysis of transport processes in man-made hydrothermal systems that could develop in geologic high-level nuclear waste repositories.

Pek, A.A.; Malkovsky, V.I. [Russian Academy of Sciences, Moscow (Russian Federation). Inst. of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry

1993-07-01T23:59:59.000Z

139

Hydrothermal synthesis of Sb2S3nanorods using iodine via redox mechanism  

Science Conference Proceedings (OSTI)

Crystalline antimony sulfide (Sb2S3) with nanorods morphology was successfully prepared via hydrothermal method by the reaction of elemental sulfur, antimony, and iodine as starting materials with high yield at 180°C for 24 ...

Abdolali Alemi; Sang Woo Joo; Younes Hanifehpour; Aliakbar Khandar; Ali Morsali; Bong-Ki Min

2011-01-01T23:59:59.000Z

140

Technology support for initiation of high-throughput processing of thin-film CdTe PV modules. Phase 1 technical report, March 14, 1995--March 13, 1996  

DOE Green Energy (OSTI)

Progress has been made in the important areas of stability, advanced deposition techniques, efficiency, the back contact, no-contact film diagnostics (photoluminescence) and Cd waste control. The progress in stability has been in both the demonstration of devices maintaining at least 90% of the initial efficiency for over 19,000 hours of continuous light soak and the development of methods which can accurately predict long term behavior based on the first 5,000--10,000 hours of life. Experiments were conducted to determine if device behavior could be accelerated with thermal or voltage stresses. Notable achievements in deposition technology include depositing CdTe on a 3,600 cm{sup 2} substrate at 600 torr and designing and fabricating a new deposition feed system with a remote semiconductor source. The efficiency has been increased on small area devices to 13.3% by decreasing the thickness of the CdS and of the glass substrate. Work also focused on using a high resistivity SnO{sub 2} buffer layer between the TCO and thin CdS to help preserve the open-circuit voltage while increasing the current-density. The back contacting process has been simplified by replacing the wet post-deposition etch with a vapor Te deposition step on small area devices. Results show that the devices perform comparably in efficiency but better in stability under light-soaking and open-circuit conditions. Preliminary studies of the correlation between CdS photoluminescence after the chloride treatment and the final device efficiency have shown a positive correlation which may be applicable for in-line quality control. The final area of progress was through the successful demonstration of preventing at least 99.9% of all incoming Cd from leaving in an uncontrolled manner through the land, air or water.

Sasala, R.; Powell, R.; Dorer, G. [Solar Cells, Inc., Toledo, OH (United States)

1996-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Technology support for high-throughput processing of thin-film CdTe PV modules: Annual technical report, Phase 1, 1 April 1998--31 March 1999  

DOE Green Energy (OSTI)

This report describes work performed by First Solar, L.L.C., during Phase 1 of this 3-year subcontract. The research effort of this subcontract is divided into four areas: (1) process and equipment development, (2) efficiency improvement, (3) characterization and analysis, and (4) environmental, health, and safety. As part of the process development effort, the output of the pilot-production facility was increased. More than 6,200 8-ft{sup 2} CdS/CdTe plates were produced during Phase 1--more than double the total number produced prior to Phase 1. This increase in pilot-production rate was accomplished without a loss in the PV conversion efficiency: the average total-area AM1.5 efficiency of sub-modules produced during the reporting period was 6.4%. Several measurement techniques, such as large-area measurement of CdS thickness, were developed to aid process improvement, and the vapor-transport deposition method was refined. CdTe thickness uniformity and reproducibility were improved. From a population of more than 1,100 plates, the mean standard deviation within a plate was 7.3% and the standard deviation of individual-plate averages was 6.8%. As part of the efficiency-improvement task, research was done on devices with thin-CdS and buffer layers. A cell with 13.9% efficiency was produced on a high-quality substrate, and higher than 12% efficiency was achieved with a cell with no CdS layer. A number of experiments were performed as part of the characterization and analysis task. The temperature dependence of CdTe modules was investigated; the power output was found to be relatively insensitive (<5%) to temperature in the 25 to 50 C range. As part of the characterization and analysis task, considerable effort was also given to reliability verification and improvement. The most carefully monitored array, located at the NREL, was found to have unchanged power output within the margin of error of measurement (5%) after 5 years in the field. The first round of National CdTe Team stability tests were concluded. One back-contact formulation resulted in cells that increased in efficiency as a result of 9,700 hours of light soaking. As part of the environmental, health, and safety task, an emissions survey was performed for the pilot-production facility. For production of 360 modules/day, it was predicted that the cadmium emissions would be only 0.015% of the level that would require any permitting; however, methanol emissions may require permitting if anticipated process changes are not implemented. Process improvements in edge delete, CdS material preparation, waste compaction, CdCl{sub 2}-vapor collection, and wastewater treatment were made, resulting in reduced costs, reduced emissions, and improved operator safety.

Rose, D.H.; Powell, R.C.; Grecu, D.; Jayamaha, U.; Hanak, J.J.; Bohland, J.; Smigielski, K.; Dorer, G.L.

1999-10-25T23:59:59.000Z

142

Structural Settings Of Hydrothermal Outflow- Fracture Permeability...  

Open Energy Info (EERE)

elevated stress termed breakdown regions. Here, stress concentrations cause active fracturing and continual re-opening of fluid-flow conduits, permitting long-lived hydrothermal...

143

High-throughput (Combinatorial) "Foundry" for Inorganic ...  

Science Conference Proceedings (OSTI)

... heat into useful energy are desirable for applications such as automotive engine waste heat recovery, where their use improves fuel efficiency and ...

2013-07-01T23:59:59.000Z

144

A high-throughput distributed DNA  

E-Print Network (OSTI)

from de- lays of up to several seconds while memory is being reclaimed. We take the approach that one programming. In Proceedings of the 1992 IEEE International Confer- ence on Robotics and Automation. 7] Erann

Weller, Jennifer Walsh

145

Application of high throughput pretreatment and cohydrolysis...  

NLE Websites -- All DOE Office Websites (Extended Search)

et al., 2005), is recognized as a sustainable source of sugars that can be converted to biofuels and other biomaterials by a number of routes (Himmel et al., 2007). To produce...

146

Available Technologies: High Throughput Purification and ...  

APPLICATIONS OF TECHNOLOGY: Biomedical research, drug design; Biofuels; Biodecontamination; ADVANTAGES: More efficient than target affinity purification

147

Available Technologies: Real Time High Throughput Isotopic ...  

Space exploration; Any scientific research involving the tracking of isotopic labels, as in: Solar power; Scintillators (deuterated, 10 B, 6 Li, 3 He) Batteries (doping)

148

Constant Pressure High Throughput Membrane Permeation Testing...  

NLE Websites -- All DOE Office Websites (Extended Search)

plant flue gas or in natural gas sweetening, and the separation of methane from other biogas components. Membranes can be made from a vast array of organic or inorganic materials...

149

Grid-enabled high throughput virtual screening  

Science Conference Proceedings (OSTI)

Large scale grids for in silico drug discovery open opportunities of particular interest to neglected and emerging diseases. In 2005 and 2006, we have been able to deploy large scale virtual docking within the framework of the WISDOM initiative against ... Keywords: avian influenza, large scale grids, malaria, virtual screening

Nicolas Jacq; Vincent Breton; Hsin-Yen Chen; Li-Yung Ho; Martin Hofmann; Hurng-Chun Lee; Yannick Legré; Simon C. Lin; Astrid Maaß; Emmanuel Medernach; Ivan Merelli; Luciano Milanesi; Giulio Rastelli; Matthieu Reichstadt; Jean Salzemann; Horst Schwichtenberg; Mahendrakar Sridhar; Vinod Kasam; Ying-Ta Wu; Marc Zimmermann

2007-01-01T23:59:59.000Z

150

Reliable high-throughput FPGA interconnect using  

E-Print Network (OSTI)

Department, University of South Carolina Columbia, SC 29208, pollocpj@engr.sc.edu ABSTRACT Pipelines WITH EMBEDDED PIEZOELECTRIC WAFER ACTIVE SENSORS FOR CRITICAL PIPELINE HEALTH MONITORING. Lingyu Yu, PhD Mechanical Engineering Department, University of South Carolina Columbia, SC 29208, yu3@engr.sc.edu Victor

Lemieux, Guy

151

High Throughput Single Molecule Investigation of Transcription  

E-Print Network (OSTI)

Binding Proteins. Angewandte Chemie International Edition,Binding Proteins. Angewandte Chemie International Edition,a methyltransferase. Angewandte Chemie 37, 2888-2891 (1998).

Kim, Soohong

2012-01-01T23:59:59.000Z

152

High throughput solar cell ablation system  

SciTech Connect

A solar cell is formed using a solar cell ablation system. The ablation system includes a single laser source and several laser scanners. The laser scanners include a master laser scanner, with the rest of the laser scanners being slaved to the master laser scanner. A laser beam from the laser source is split into several laser beams, with the laser beams being scanned onto corresponding wafers using the laser scanners in accordance with one or more patterns. The laser beams may be scanned on the wafers using the same or different power levels of the laser source.

Harley, Gabriel; Pass, Thomas; Cousins, Peter John; Viatella, John

2012-09-11T23:59:59.000Z

153

High-throughput proteomics : optical approaches.  

SciTech Connect

Realistic cell models could greatly accelerate our ability to engineer biochemical pathways and the production of valuable organic products, which would be of great use in the development of biofuels, pharmaceuticals, and the crops for the next green revolution. However, this level of engineering will require a great deal more knowledge about the mechanisms of life than is currently available. In particular, we need to understand the interactome (which proteins interact) as it is situated in the three dimensional geometry of the cell (i.e., a situated interactome), and the regulation/dynamics of these interactions. Methods for optical proteomics have become available that allow the monitoring and even disruption/control of interacting proteins in living cells. Here, a range of these methods is reviewed with respect to their role in elucidating the interactome and the relevant spatial localizations. Development of these technologies and their integration into the core competencies of research organizations can position whole institutions and teams of researchers to lead in both the fundamental science and the engineering applications of cellular biology. That leadership could be particularly important with respect to problems of national urgency centered around security, biofuels, and healthcare.

Davidson, George S.

2008-09-01T23:59:59.000Z

154

High throughput liquid absorption preconcentrator sampling instrument  

DOE Patents (OSTI)

A system for detecting trace concentrations of an analyte in air includes a preconcentrator for the analyte and an analyte detector. The preconcentrator includes an elongated tubular container comprising a wettable material. The wettable material is continuously wetted with an analyte-sorbing liquid which flows from one part of the container to a lower end. Sampled air flows through the container in contact with the wetted material with a swirling motion which results in efficient transfer of analyte vapors or aerosol particles to the sorbing liquid and preconcentration of traces of analyte in the liquid. The preconcentrated traces of analyte may be either detected within the container or removed therefrom for injection into a separate detection means or for subsequent analysis. 12 figs.

Zaromb, S.; Bozen, R.M.

1990-03-26T23:59:59.000Z

155

Land use siting considerations for hydrothermal energy facilities  

DOE Green Energy (OSTI)

Hydrothermal resources are described and discussion is focused on some of the land use and social considerations involved in siting hydrothermal power plants. (MHR)

Oakes, K.M.

1980-01-01T23:59:59.000Z

156

Hydraulic characterization of hydrothermally altered Nopal tuff  

SciTech Connect

Understanding the mechanics of variably saturated flow in fractured-porous media is of fundamental importance to evaluating the isolation performance of the proposed high-level radioactive waste repository for the Yucca Mountain site. Developing that understanding must be founded on the analysis and interpretation of laboratory and field data. This report presents an analysis of the unsaturated hydraulic properties of tuff cores from the Pena Blanca natural analog site in Mexico. The basic intent of the analysis was to examine possible trends and relationships between the hydraulic properties and the degree of hydrothermal alteration exhibited by the tuff samples. These data were used in flow simulations to evaluate the significance of a particular conceptual (composite) model and of distinct hydraulic properties on the rate and nature of water flow.

Green, R.T.; Meyer-James, K.A. [Southwest Research Institute, San Antonio, TX (United States); Rice, G. [George Rice and Associates, San Antonio, TX (United States)

1995-07-01T23:59:59.000Z

157

Why Sequence Thermoacidophiles of deep-sea hydrothermal vents?  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermoacidophiles of Thermoacidophiles of deep-sea hydrothermal vents? Bacteria that live in hydrothermal vents on land and deep underwater need to be able to tolerate high temperatures and harsh, nutrient-poor environments with high concentrations of metals. As a result of living in such environments, however, these bacteria have enzymes that are stable at high temperatures, which could be useful for producing alternative fuels. Thermoacidophiles Photo: University of Delaware Aquificales bacteria are often found in thermal streams and associated with sulfide precipitation. Sequencing some of these bacterial genomes -- specifically, Thermocrinis ruber, S. rodmanii and S. kristjansonnii -- could provide researchers with so-called "anchor genomes" that would be applied in turn to studies already being done on microbial communities in

158

DRILLED HYDROTHERMAL ENERGY Drilling for seawater  

E-Print Network (OSTI)

technologies to obtain thermal energy (and other benefits) from a large body of water #12;Microgrid Customer ENERGY : Underground Technologies #12;#12;Microgrid Customer Facilities Drilled Hydrothermal Energy Plant;#12;Microgrid Customer Facilities Drilled Hydrothermal Energy Plant Cooling Power Biofuel / H2 Fresh Water

159

Whole Algae Hydrothermal Liquefaction Technology Pathway  

DOE Green Energy (OSTI)

This technology pathway case investigates the feasibility of using whole wet microalgae as a feedstock for conversion via hydrothermal liquefaction. Technical barriers and key research needs have been assessed in order for the hydrothermal liquefaction of microalgae to be competitive with petroleum-derived gasoline-, diesel-, and jet-range hydrocarbon blendstocks.

Biddy, M.; Davis, R.; Jones, S.

2013-03-01T23:59:59.000Z

160

Cyclic coordinate descent in hydrothermal nonsmooth problems  

Science Conference Proceedings (OSTI)

In this paper we present an algorithm, inspired by the cyclic coordinate descent method, which allows the solution of hydrothermal optimization problems involving pumped-storage plants. The proof of the convergence of the succession generated by the ... Keywords: Coordinate descent, Hydrothermal coordination, Optimal control, Zangwill's theorem

Luis Bayón; Jose M. Grau; Maria M. Ruiz; Pedro M. Suárez

2012-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Surface-discharging hydrothermal systems at Yucca Mountain: Examining the evidence  

DOE Green Energy (OSTI)

This paper discusses exposures of altered rock that have been thought to form by recent discharge of water from depth. They were examined to address a concern that hydrothermal processes could compromise the isolation capability of a potential high-level nuclear waste repository at Yucca Mountain. Suspected hot-spring and hydrothermal-vent deposits are more likely the products of infiltration of meteoric water into newly deposited and still-hot pyroclastic flows >12 Myr ago.

Levy, S.S.

1992-12-01T23:59:59.000Z

162

Rare Earth Oxide Fluoride Nanoparticles And Hydrothermal Method For Forming Nanoparticles  

DOE Patents (OSTI)

A hydrothermal method for forming nanoparticles of a rare earth element, oxygen and fluorine has been discovered. Nanoparticles comprising a rare earth element, oxygen and fluorine are also described. These nanoparticles can exhibit excellent refractory properties as well as remarkable stability in hydrothermal conditions. The nanoparticles can exhibit excellent properties for numerous applications including fiber reinforcement of ceramic composites, catalyst supports, and corrosion resistant coatings for high-temperature aqueous solutions.

Fulton, John L. (Richland, WA); Hoffmann, Markus M. (Richland, WA)

2003-12-23T23:59:59.000Z

163

New Evidence On The Hydrothermal System In Long Valley Caldera, California,  

Open Energy Info (EERE)

New Evidence On The Hydrothermal System In Long Valley Caldera, California, New Evidence On The Hydrothermal System In Long Valley Caldera, California, From Wells, Fluid Sampling, Electrical Geophysics, And Age Determinations Of Hot-Spring Deposits Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: New Evidence On The Hydrothermal System In Long Valley Caldera, California, From Wells, Fluid Sampling, Electrical Geophysics, And Age Determinations Of Hot-Spring Deposits Abstract Data collected since 1985 from test drilling, fluid sampling, and geologic and geophysical investigations provide a clearer definition of the hydrothermal system in Long Valley caldera than was previously available. This information confirms the existence of high-temperature (> 200°C) reservoirs within the volcanic fill in parts of the west moat. These

164

What Defines a Separate Hydrothermal System  

DOE Green Energy (OSTI)

Separate hydrothermal systems can be defined in a variety of ways. Criteria which have been applied include separation of heat source, upflow, economic resource and geophysical anomaly. Alternatively, connections have been defined by the effects of withdrawal of economically useful fluid and subsidence, effects of reinjection, changes in thermal features, or by a hydrological connection of groundwaters. It is proposed here that: ''A separate hydrothermal system is one that is fed by a separate convective upflow of fluid, at a depth above the brittle-ductile transition for the host rocks, while acknowledging that separate hydrothermal systems can be hydrologically interconnected at shallower levels''.

Lawless, J.V.; Bogie, I.; Bignall, G.

1995-01-01T23:59:59.000Z

165

Hydrothermal alteration mineral mapping using hyperspectral imagery in  

Open Energy Info (EERE)

alteration mineral mapping using hyperspectral imagery in alteration mineral mapping using hyperspectral imagery in Dixie Valley, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Hydrothermal alteration mineral mapping using hyperspectral imagery in Dixie Valley, Nevada Abstract Hyperspectral (HyMap) data was used to map the location ofoutcrops of high temperature, hydrothermally alterated minerals(including alunite, pyrophyllite, and hematite) along a 15 kmswath of the eastern front of the Stillwater Mountain Range inDixie Valley, Nevada. Analysis of this data set reveals that severaloutcrops of these altered minerals exist in the area, and thatone outcrop, roughly 1 square kilometer in area, shows abundanthigh temperature alteration. Structural analysis of the alteredregion using a

166

Flow and permeability structure of the Beowawe, Nevada hydrothermal system  

DOE Green Energy (OSTI)

A review of past geologic, geochemical, hydrological, pressure transient, and reservoir engineering studies of Beowawe suggests a different picture of the reservoir than previously presented. The Beowawe hydrothermal contains buoyant thermal fluid dynamically balanced with overlying cold water, as shown by repeated temperature surveys and well test results. Thermal fluid upwells from the west of the currently developed reservoir at the intersection of the Malpais Fault and an older structural feature associated with mid-Miocene rifting. A tongue of thermal fluid rises to the east up the high permeability Malpais Fault, discharges at the Geysers area, and is in intimate contact with overlying cooler water. The permeability structure is closely related to the structural setting, with the permeability of the shallow hydrothermal system ranging from 500 to 1,000 D-ft, while the deeper system ranges from 200 to 400 D-ft.

Faulder, D.D. [Lockheed Idaho Technologies Co., Idaho Falls, ID (United States); Johnson, S.D.; Benoit, W.R. [Oxbow Power Services, Inc., Reno, NV (United States)

1997-05-01T23:59:59.000Z

167

Catalytic Hydrothermal Gasification of Biomass  

Science Conference Proceedings (OSTI)

A recent development in biomass gasification is the use of a pressurized water processing environment in order that drying of the biomass can be avoided. This paper reviews the research undertaken developing this new option for biomass gasification. This review does not cover wet oxidation or near-atmospheric-pressure steam-gasification of biomass. Laboratory research on hydrothermal gasification of biomass focusing on the use of catalysts is reviewed here, and a companion review focuses on non-catalytic processing. Research includes liquid-phase, sub-critical processing as well as super-critical water processing. The use of heterogeneous catalysts in such a system allows effective operation at lower temperatures, and the issues around the use of catalysts are presented. This review attempts to show the potential of this new processing concept by comparing the various options under development and the results of the research.

Elliott, Douglas C.

2008-05-06T23:59:59.000Z

168

Hydrothermal processing of Hanford tank wastes: Process modeling and control  

Science Conference Proceedings (OSTI)

In the Los Alamos National Laboratory (LANL) hydrothermal process, waste streams are first pressurized and heated as they pass through a continuous flow tubular reactor vessel. The waste is maintained at reaction temperature of 300--550 C where organic destruction and sludge reformation occur. This report documents LANL activities in process modeling and control undertaken in FY94 to support hydrothermal process development. Key issues discussed include non-ideal flow patterns (e.g. axial dispersion) and their effect on reactor performance, the use and interpretation of inert tracer experiments, and the use of computational fluid mechanics to evaluate novel hydrothermal reactor designs. In addition, the effects of axial dispersion (and simplifications to rate expressions) on the estimated kinetic parameters are explored by non-linear regression to experimental data. Safety-related calculations are reported which estimate the explosion limits of effluent gases and the fate of hydrogen as it passes through the reactor. Development and numerical solution of a generalized one-dimensional mathematical model is also summarized. The difficulties encountered in using commercially available software to correlate the behavior of high temperature, high pressure aqueous electrolyte mixtures are summarized. Finally, details of the control system and experiments conducted to empirically determine the system response are reported.

Currier, R.P. [comp.

1994-10-01T23:59:59.000Z

169

Water geochemistry of hydrothermal systems, Wood River District, Idaho  

DOE Green Energy (OSTI)

Hydrothermal systems of the Wood River District, central Idaho, have been studied by geologic mapping of thermal spring areas and geochemical investigations of thermal and non-thermal waters. This report summarizes the new geochemical data gathered during the study. Integration of the results of geological and geochemical studies has led to development of a target model for hydrothermal resources on the margin of the Idaho Batholith. Warfield Hot Springs, with temperatures up to 58/sup 0/C, flow from a major shear zone along the margin of an apophysis of the batholith. Hailey Hot Springs, with temperatures up to 60/sup 0/C, occur in an area of multiple thrust faults and newly recognized, closely spaced normal faults in the Paleozoic Milligen and Wood River Formations, 2.5 km from a highly brecciated batholith contact. Other Wood River district hydrothermal systems also occur along the margins of batholith apophyses or in adjacent highly fractured Paleozoic rocks, where there are indications of batholith rocks at shallow depths (100 to 300 m) in water wells.

Zeisloft, J.; Foley, D.; Blackett, R.

1983-08-01T23:59:59.000Z

170

Reconnaissance of the hydrothermal resources of Utah  

DOE Green Energy (OSTI)

Geologic factors in the Basin and Range province in Utah are more favorable for the occurrence of geothermal resources than in other areas on the Colorado Plateaus or in the Middle Rocky Mountains. These geologic factors are principally crustal extension and crustal thinning during the last 17 million years. Basalts as young as 10,000 years have been mapped in the area. High-silica volcanic and intrusive rocks of Quaternary age can be used to locate hydrothermal convection systems. Drilling for hot, high-silica, buried rock bodies is most promising in the areas of recent volcanic activity. Southwestern Utah has more geothermal potential than other parts of the Basin and Range province in Utah. The Roosevelt Hot Springs area, the Cove Fort-Sulphurdale area, and the area to the north as far as 60 kilometers from them probably have the best potential for geothermal development for generation of electricity. Other areas with estimated reservoir temperatures greater than 150/sup 0/C are Thermo, Monroe, Red Hill (in the Monroe-Joseph Known Geothermal Resource Area), Joseph Hot Springs, and the Newcastle area. The rates of heat and water discharge are high at Crater, Meadow, and Hatton Hot Springs, but estimated reservoir temperatures there are less than 150/sup 0/C. Additional exploration is needed to define the potential in three additional areas in the Escalante Desert. 28 figs., 18 tabs.

Rush, F.E.

1983-01-01T23:59:59.000Z

171

Definition: Hydrothermal Reservoir | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Reservoirs are underground zones of porous rock containing hot water and steam, and can be naturally occurring or human-made.1 References x Ret LikeLike...

172

Biomass reforming processes in hydrothermal media  

E-Print Network (OSTI)

While hydrothermal technologies offer distinct advantages in being able to process a wide variety of biomass feedstocks, the composition of the feedstock will have a large effect on the processing employed. This thesis ...

Peterson, Andrew A

2009-01-01T23:59:59.000Z

173

Mesoporous titania nanocrystals by hydrothermal template growth  

Science Conference Proceedings (OSTI)

Mesoporous TiO2 nanocrystals have been synthetized by a classical sol-gel route integrated by an hydrothermal growth step using monomeric (dodecylpyridinium chloride, DPC) or dimeric gemini-like (GS3) surfactants as template directing agents. ...

Giuseppe Cappelletti; Silvia Ardizzone; Francesca Spadavecchia; Daniela Meroni; Iolanda Biraghi

2011-01-01T23:59:59.000Z

174

Hydrothermal industrialization: direct heat development. Final report  

Science Conference Proceedings (OSTI)

A description of hydrothermal resources suitable for direct applications, their associated temperatures, geographic distribution and developable capacity are given. An overview of the hydrothermal direct-heat development infrastructure is presented. Development activity is highlighted by examining known and planned geothermal direct-use applications. Underlying assumptions and results for three studies conducted to determine direct-use market penetration of geothermal energy are discussed.

Not Available

1982-05-01T23:59:59.000Z

175

Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera, New  

Open Energy Info (EERE)

Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera, New Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera, New Mexico- A 36Cl Study Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera, New Mexico- A 36Cl Study Abstract The Valles caldera in New Mexico hosts a high-temperature geothermal system, which is manifested in a number of hot springs discharging in and around the caldera. In order to determine the fluid pathways and the origin of chloride in this system, we measured 36Cl/Cl ratios in waters from high-temperature drill holes and from surface springs in this region. The waters fall into two general categories: recent meteoric water samples with low Cl- concentrations (< 10 mg/L) and relatively high 36Cl/Cl ratios

176

Are there significant hydrothermal resources in the US part of the Cascade Range?  

SciTech Connect

The Cascade Range is a geothermal dichotomy. On the one hand, it is an active volcanic arc above a subducting plate and is demonstrably an area of high heat flow. On the other hand, the distribution of hydrothermal manifestations compared to other volcanic arcs is sparse, and the hydrothermal outflow calculated from stream chemistry is low. Several large estimates of undiscovered geothermal resources in the U.S. part of the Cascade Range prepared in the 1970s and early 1980s were based fundamentally on two models of the upper crust. One model assumed that large, partly molten, intrusive bodies exist in the upper 10 km beneath major volcanic centers and serve as the thermal engines driving overlying hydrothermal systems. The other model interpreted the coincident heat-flow and gravity gradients west of the Cascade crest in central Oregon to indicate a partly molten heat source at 10 {+-} 2 km depth extending {approx}30 km west from the axis of the range. Investigations of the past ten years have called both models into question. Large long-lived high-temperature hydrothermal systems at depths <3 km in the U.S. part of the Cascade Range appear to be restricted to silicic domefields at the Lassen volcanic center, Medicine Lake volcano, Newberry volcano, and possibly the Three Sisters. Federal land-use restrictions further reduce this list to Medicine Lake and Newberry. Dominantly andesitic stratocones appear to support only small transitory hydrothermal systems related to small intrusive bodies along the volcanic conduits. The only young caldera, at Crater Lake, supports only low- to intermediate-temperature hydrothermal systems. Most of the Cascade Range comprises basaltic andesites and has little likelihood for high-level silicic intrusions and virtually no potential for resultant large high-temperature hydrothermal systems. Undiscovered hydrothermal resources of the Cascade Range of the United States are substantially lower than previous estimates. The range does have potential for intermediate-temperature hot dry rock and localized low- to intermediate-temperature hydrothermal systems.

Muffler, L.J. Patrick; Guffanti, Marianne

1995-01-26T23:59:59.000Z

177

Characterization of advanced preprocessed materials (Hydrothermal)  

Science Conference Proceedings (OSTI)

The initial hydrothermal treatment parameters did not achieve the proposed objective of this effort; the reduction of intrinsic ash in the corn stover. However, liquid fractions from the 170°C treatments was indicative that some of the elements routinely found in the ash that negatively impact the biochemical conversion processes had been removed. After reviewing other options for facilitating ash removal, sodium-citrate (chelating agent) was included in the hydrothermal treatment process, resulting in a 69% reduction in the physiological ash. These results indicated that chelation –hydrothermal treatment is one possible approach that can be utilized to reduce the overall ash content of feedstock materials and having a positive impact on conversion performance.

Rachel Emerson; Garold Gresham

2012-09-01T23:59:59.000Z

178

Hydrothermal vent complexes associated with sill intrusionsin sedimentarybasins  

E-Print Network (OSTI)

. 477 Discussion on structure and evolution of hydrothermal vent complexes in the Karoo Basin, South the paper by Svensen et al. (2006) on South African hydrothermal vents within the Karoo Basin, particularly for their interest in our paper on hydrothermal vent complexes in the Karoo Basin (Svensen et al. 2006). Based

Podladchikov, Yuri

179

Furnace Efficiency – Energy and Throughput - Programmaster.org  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, 2011 TMS Annual Meeting & Exhibition. Symposium, Furnace Efficiency – Energy and Throughput. Sponsorship, The Minerals ...

180

Hydrothermal industrialization electric-power systems development. Final report  

DOE Green Energy (OSTI)

The nature of hydrothermal resources, their associated temperatures, geographic locations, and developable capacity are described. The parties involved in development, required activities and phases of development, regulatory and permitting requirements, environmental considerations, and time required to complete development activities ae examined in detail. These activities are put in proper perspective by detailing development costs. A profile of the geothermal industry is presented by detailing the participants and their operating characteristics. The current development status of geothermal energy in the US is detailed. The work on market penetration is summarized briefly. Detailed development information is presented for 56 high temperature sites. (MHR)

Not Available

1982-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

The potential for photosynthesis in hydrothermal vents: a new avenue for life in the Universe?  

E-Print Network (OSTI)

We perform a quantitative assessment for the potential for photosynthesis in hydrothermal vents in the deep ocean. The photosynthetically active radiation in this case is from geothermal origin: the infrared thermal radiation emitted by hot water, at temperatures ranging from 473 up to 673 K. We find that at these temperatures the photosynthetic potential is rather low in these ecosystems for most known species. However, species which a very high efficiency in the use of light and which could use infrared photons till 1300nm, could achieve good rates of photosynthesis in hydrothermal vents. These organisms might also thrive in deep hydrothermal vents in other planetary bodies, such as one of the more astrobiologically promising Jupiter satellites: Europa.

Perez, Noel; Martin, Osmel; Leiva-Mora, Michel

2013-01-01T23:59:59.000Z

182

Lithology and hydrothermal alteration determination from well logs for the Cerro Prieto Wells, Mexico  

DOE Green Energy (OSTI)

The purpose of this study is to examine the characteristics of geophysical well logs against the sand-shale series of the sedimentary column of the Cerro Prieto Geothermal Field, Mexico. The study shows that the changes in mineralogy of the rocks because of hydrothermal alteration are not easily detectable on the existing logs. However, if the behavior of clay minerals alone is monitored, the onset of the hydrothermally altered zones may be estimated from the well logs. The effective concentration of clay-exchange cations, Q/sub v/, is computed using the data available from conventional well logs. Zones indicating the disappearance of low-temperature clays are considered hydrothermally altered formations with moderate to high-permeability and temperature, and suitable for completion purposes.

Ershaghi, I.; Ghaemian, S.; Abdassah, D.

1981-10-01T23:59:59.000Z

183

Understanding the Formation and Evolution of Ceria Nanoparticles Under Hydrothermal Conditions  

Science Conference Proceedings (OSTI)

The formation and evolution of ceria nanoparticles during hydrothermal synthesis was investigated by in-situ total scattering and powder diffraction. The nucleation of pristine crystalline ceria nanoparticles originated from previously unknown cerium dimer complexes. The nanoparticle growth was highly accelerated under supercritical conditions.

Tyrsted, Christoffer; Ørnsbjerg; #8197; Jensen, Kirsten Marie; Bøjesen, Espen Drath; Lock, Nina; Christensen, Mogens; Billinge, Simon J.L.; Brummerstedt; #8197; Iversen, Bo (Aarhus); (Columbia)

2012-10-23T23:59:59.000Z

184

Colorado's hydrothermal resource base: an assessment  

DOE Green Energy (OSTI)

As part of its effort to more accurately describe the nations geothrmal resource potential, the US Department of Energy/Division of Geothermal Energy contracted with the Colorado Geological survey to appraise the hydrothermal (hot water) geothermal resources of Colorado. Part of this effort required that the amount of energy that could possibly be contained in the various hydrothermal systems in Colorado be estimated. The findings of that assessment are presented. To make these estimates the geothermometer reservoir temperatures estimated by Barrett and Pearl (1978) were used. In addition, the possible reservoir size and extent were estimated and used. This assessment shows that the total energy content of the thermal systems in Colorado could range from 4.872 x 10{sup 15} BTU's to 13.2386 x 10{sup 15} BTU's.

Pearl, R.H.

1981-01-01T23:59:59.000Z

185

Whole Algae Hydrothermal Liquefaction Technology Pathway  

SciTech Connect

In support of the Bioenergy Technologies Office, the National Renewable Energy Laboratory (NREL) and the Pacific Northwest National Laboratory (PNNL) are undertaking studies of biomass conversion technologies to hydrocarbon fuels to identify barriers and target research toward reducing conversion costs. Process designs and preliminary economic estimates for each of these pathway cases were developed using rigorous modeling tools (Aspen Plus and Chemcad). These analyses incorporated the best information available at the time of development, including data from recent pilot and bench-scale demonstrations, collaborative industrial and academic partners, and published literature and patents. This pathway case investigates the feasibility of using whole wet microalgae as a feedstock for conversion via hydrothermal liquefaction. Technical barriers and key research needs have been assessed in order for the hydrothermal liquefaction of microalgae to be competitive with petroleum-derived gasoline, diesel and jet range blendstocks.

Biddy, Mary J.; Davis, Ryan; Jones, Susanne B.; Zhu, Yunhua

2013-03-31T23:59:59.000Z

186

Furnace Efficiency – Energy and Throughput - Programmaster.org  

Science Conference Proceedings (OSTI)

Since throughput and energy efficiency are very closely tied together, this symposium looks to optimize furnace operations in both areas. Specific methods to ...

187

A Cellular Automata Breccia Simulator (CABS) and its application to rounding in hydrothermal breccias  

Science Conference Proceedings (OSTI)

Dissolution processes are ubiquitous in surficial and hydrothermal environments. Solution breccias are formed when dissolution processes dominate and are widely observed in hydrothermal systems. Distinct fragment shapes develop during dissolution and ... Keywords: Breccias, Cellular automata, Hydrothermal alteration, Numerical modelling, Simulation

M. Lalonde; G. Tremblay; M. Jébrak

2010-07-01T23:59:59.000Z

188

Relations Of Ammonium Minerals At Several Hydrothermal Systems...  

Open Energy Info (EERE)

minerals at known hydrothermal systems is critical for the proper interpretation of remote sensing data and for testing of possible links to mineralization. Submicroscopic...

189

Hydrothermal Heat Discharge In The Cascade Range, Northwestern...  

Open Energy Info (EERE)

Hydrothermal heat discharge in the Cascade Range includes the heat discharged by thermal springs, by "slightly thermal" springs that are only a few degrees warmer than...

190

GEOLOGY AND HYDROTHERMAL ALTERATION OF THE RAFT RIVER GEOTHERMAL...  

Open Energy Info (EERE)

GEOLOGY AND HYDROTHERMAL ALTERATION OF THE RAFT RIVER GEOTHERMAL SYSTEM, IDAHO Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: GEOLOGY AND...

191

A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal...  

Open Energy Info (EERE)

Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Helium Isotope...

192

Why Sequence Bacteria in Deep Sea Hydrothermal Vents?  

NLE Websites -- All DOE Office Websites (Extended Search)

Bacteria in Deep Sea Hydrothermal Vents? The project focuses on using single-cell genomics to sequence nearly a dozen genomes of uncultivated bacteria that are found in...

193

Hydrothermal alteration in Oregon's Newberry Volcano No. 2: fluid chemistry and secondary-mineral distribution  

SciTech Connect

Newberry 2 was drilled in the caldera floor of Newberry Volcano, Oregon, by the US Geological Survey during 1979-81. The maximum temperature measured was 265C at the bottom of the hole, 932 m below the surface. Rocks recovered fr9om the drill hole are divided into three intervals on the basis of hydrothermal alteration and mineral deposition: (1) 0-290 m consists of unaltered, largely glassy volcanic material, with present temperatures ranging from 20 to 40C; (2) 290-700 m consists of permeable tuff layers, tuff breccia units, and brecciated and fractured rhyodacitic to dacitic lava flows, with temperatures ranging from 40 to 100C; (3) 700-932 m consists of impermeable andesitic to basaltic lava flows that generally show little effect of alteration, interlayered with permeable hydrothermally altered flow breccia, with temperatures gradually increasing from 100 at 700 m to 265C at 932 m. Hydrothermal alteration throughout the system is controlled by rock permeability, temperature, composition of geothermal fluids, and composition and crystallinity of host rocks. Rock alteration consists mainly of replacement of glass by clay minerals and, locally, zeolites, partial replacement of plagioclase phenocrysts by calcite +/- epidote +/- illite, and whole-rock leaching adjacent to fluids channels. Open-space deposition of hydrothermal minerals in fractures, vesicles, and interbreccia pore space is far more abundant than replacement. A cooling shallow convection system in the upper 700 m is indicated by the occurrence of hydrothermal minerals that were deposited in a slightly higher temperature environment than presently exists. Below 700 m, the heat flow is conductive, and fluid flow is controlled by horizontal lava flows. Homogenization temperatures of secondary quartz fluid inclusions were as high as 370C.

Keith, T.E.C.; Mariner, R.H.; Bargar, K.E.; Evans, W.C.; Presser, T.S.

1984-04-01T23:59:59.000Z

194

Particle swarm optimization technique based short-term hydrothermal scheduling  

Science Conference Proceedings (OSTI)

Particle swarm optimization is applied to determine the optimal hourly schedule of power generation in a hydrothermal power system. A multi-reservoir cascaded hydroelectric system with a nonlinear relationship between water discharge rate, net head and ... Keywords: Cascaded reservoirs, Hydrothermal scheduling, Particle swarm optimization

K. K. Mandal; M. Basu; N. Chakraborty

2008-09-01T23:59:59.000Z

195

Polymer-assisted hydrothermal synthesis of hierarchically arranged hydroxyapatite nanoceramic  

Science Conference Proceedings (OSTI)

Flower-like hydroxyapatite (HA) nanostructures were synthesized by a polymer-assisted hydrothermal method. The thickness of the petals/plates decreased from 200 nm to 40 nm as the polymer concentration increased. The thickness also decreased as the hydrothermal ...

A. Joseph Nathanael, Sung Soo Han, Tae Hwan Oh

2013-01-01T23:59:59.000Z

196

Hydrothermal alkali metal recovery process  

DOE Patents (OSTI)

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by treating them with a calcium or magnesium-containing compound in the presence of water at a temperature between about 250.degree. F. and about 700.degree. F. and in the presence of an added base to establish a pH during the treatment step that is higher than would otherwise be possible without the addition of the base. During the treating process the relatively high pH facilitates the conversion of water-insoluble alkali metal compounds in the alkali metal residues into water-soluble alkali metal constituents. The resultant aqueous solution containing water-soluble alkali metal constituents is then separated from the residue solids, which consist of the treated particles and any insoluble materials formed during the treatment step, and recycled to the gasification process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst. Preferably, the base that is added during the treatment step is an alkali metal hydroxide obtained by water washing the residue solids produced during the treatment step.

Wolfs, Denise Y. (Houston, TX); Clavenna, Le Roy R. (Baytown, TX); Eakman, James M. (Houston, TX); Kalina, Theodore (Morris Plains, NJ)

1980-01-01T23:59:59.000Z

197

Hydrothermal alkali metal recovery process  

SciTech Connect

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by treating them with a calcium or magnesium-containing compound in the presence of water at a temperature between about 250/sup 0/F and about 700/sup 0/F and in the presence of an added base to establish a pH during the treatment step that is higher than would otherwise be possible without the addition of the base. During the treating process the relatively high pH facilitates the conversion of water-insoluble alkali metal compounds in the alkali metal residues into water-soluble alkali metal constituents. The resultant aqueous solution containing watersoluble alkali metal constituents is then separated from the residue solids, which consist of the treated particles and any insoluble materials formed during the treatment step, and recycled to the gasification process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst. Preferably, the base that is added during the treatment step is an alkali metal hydroxide obtained by water washing the residue solids produced during the treatment step.

Clavenna, L.R.; Eakman, J.M.; Kalina, T.; Wolfs, D.Y.

1980-08-26T23:59:59.000Z

198

Property:IdentifiedHydrothermalPotential | Open Energy Information  

Open Energy Info (EERE)

IdentifiedHydrothermalPotential IdentifiedHydrothermalPotential Jump to: navigation, search Property Name IdentifiedHydrothermalPotential Property Type Quantity Description Conventional hydrothermal electricity generation potential from identified hydrothermal sites, as determined by the USGS 2008 Geothermal Resource Assessment (Williams et al, 2008). Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS

199

Property:PotentialGeothermalHydrothermalGeneration | Open Energy  

Open Energy Info (EERE)

PotentialGeothermalHydrothermalGeneration PotentialGeothermalHydrothermalGeneration Jump to: navigation, search Property Name PotentialGeothermalHydrothermalGeneration Property Type Quantity Description The estimated potential energy generation from Geothermal Hydrothermal for a particular place. Use this type to express a quantity of energy. The default unit for energy on OpenEI is the Kilowatt hour (kWh), which is 3,600,000 Joules. http://en.wikipedia.org/wiki/Unit_of_energy It's possible types are Watt hours - 1000 Wh, Watt hour, Watthour Kilowatt hours - 1 kWh, Kilowatt hour, Kilowatthour Megawatt hours - 0.001 MWh, Megawatt hour, Megawatthour Gigawatt hours - 0.000001 GWh, Gigawatt hour, Gigawatthour Joules - 3600000 J, Joules, joules Pages using the property "PotentialGeothermalHydrothermalGeneration"

200

Relations Of Ammonium Minerals At Several Hydrothermal Systems In The  

Open Energy Info (EERE)

Relations Of Ammonium Minerals At Several Hydrothermal Systems In The Relations Of Ammonium Minerals At Several Hydrothermal Systems In The Western Us Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Relations Of Ammonium Minerals At Several Hydrothermal Systems In The Western Us Details Activities (5) Areas (1) Regions (0) Abstract: Ammonium bound to silicate and sulfate minerals has recently been located at several major hydrothermal systems in the western U.S. utilizing newly-discovered near-infrared spectral properties. Knowledge of the origin and mineralogic relations of ammonium minerals at known hydrothermal systems is critical for the proper interpretation of remote sensing data and for testing of possible links to mineralization. Submicroscopic analysis of ammonium minerals from two mercury- and gold-bearing

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal  

Open Energy Info (EERE)

Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal System- A Case Study Of The Geysers Geothermal Field, Usa Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal System- A Case Study Of The Geysers Geothermal Field, Usa Details Activities (1) Areas (1) Regions (0) Abstract: Hydrothermal alteration and the active vapor-dominated geothermal system at The Geysers, CA are related to a composite hypabyssal granitic pluton emplaced beneath the field 1.1 to 1.2 million years ago. Deep drill holes provide a complete transect across the thermal system and samples of the modern-day steam. The hydrothermal system was liquid-dominated prior to formation of the modern vapor-dominated regime at 0.25 to 0.28 Ma. Maximum

202

Property:UndiscoveredHydrothermalPotential | Open Energy Information  

Open Energy Info (EERE)

UndiscoveredHydrothermalPotential UndiscoveredHydrothermalPotential Jump to: navigation, search Property Name UndiscoveredHydrothermalPotential Property Type Quantity Description Estimated conventional hydrothermal electricity generation potential from undiscovered hydrothermal sites, as determined by the USGS 2008 Geothermal Resource Assessment (Williams et al, 2008). Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS

203

Hydrothermal system at Newberry Volcano, Oregon  

SciTech Connect

Results of recent geological and geophysical studies at Newberry Volcano have been incorporated into conceptual and numerical models of a magma-based hydrothermal system. Numerical simulations begin with emplacement of a small magma body, the presumed source of silicic eruptions at Newberry that began about 10,000 B.P., into a thermal regime representing 100,000 years of cooling of a large underlying intrusion. Simulated flow patterns and thermal histories for three sets of hypothetical permeability values are compatible with data from four geothermal drill holes on the volcano. Meteoric recharge cools the caldera-fill deposits, but thermal water moving up a central conduit representing a permeable volcanic vent produces temperatures close to those observed in drill holes within the caldera. Meteoric recharge from the caldera moves down the flanks and creates a near-isothermal zone that extends several hundred meters below the water table, producing temperature profiles similar to those observed in drill holes on the flanks. The temperatures observed in drill holes on the flanks are not influenced by the postulated Holocene magma body. The elevated temperature gradients measured in the lower portions of these holes may be related to the cumulative effect of older intrusions. The models also indicate that meteoric recharge to the deep hydrothermal system probably originates within or near the caldera. Relatively low fluid velocities at depth suggest that at least a significant fraction of the thermal fluid may be very old.

Sammel, E.A.; Ingebritsen, S.E.; Mariner, R.H.

1988-09-10T23:59:59.000Z

204

Method and apparatus for maximizing throughput of indirectly heated rotary kilns  

DOE Patents (OSTI)

An apparatus and method for achieving improved throughput capacity of indirectly heated rotary kilns used to produce pyrolysis products such as shale oils or coal oils that are susceptible to decomposition by high kiln wall temperatures is disclosed. High throughput is achieved by firing the kiln such that optimum wall temperatures are maintained beginning at the point where the materials enter the heating section of the kiln and extending to the point where the materials leave the heated section. Multiple high velocity burners are arranged such that combustion products directly impact on the area of the kiln wall covered internally by the solid material being heated. Firing rates for the burners are controlled to maintain optimum wall temperatures.

Coates, Ralph L; Smoot, L. Douglas; Hatfield, Kent E

2012-10-30T23:59:59.000Z

205

Hydrothermal cements for use in the completion of geothermal wells. Final report  

DOE Green Energy (OSTI)

A research program to develop an improved cement for use in high-temperature geothermal wells was carried out. The work involved in the selection and evaluation of an aluminum hydroxide-cured cement from the SwRI family of hydrothermal cements for this use are described. The physical testing program is described; the topics discussed include placement ability, compressive and bond strengths, permeability to water, compatibility to drilling muds, corrosion properties, and thermal properties.

Not Available

1979-09-01T23:59:59.000Z

206

Technology support for initiation of high-throughput processing of thin-film CdTe PV modules. Phase 3 final technical report, 14 March 1997--1 April 1998  

SciTech Connect

Thin-film PV devices based on cadmium telluride have been identified as one of the candidates for high-performance, low-cost source of renewable electrical energy. Roadblocks to their becoming a part of the booming PV market growth have been a low rate of production and high manufacturing cost caused by several rate-limiting process steps. Solar Cells Inc. has focused on the development of manufacturing processes that will lead to high volume and low-cost manufacturing of solar cells and on increasing the performance of the present product. The process research in Phase 3 was concentrated on further refinement of a newly developed vapor transport deposition (VTD) process and its implementation into the manufacturing line. This development included subsystems for glass substrate transport, continuous feed of source materials, generation of source vapors, and uniform deposition of the semiconductor layers. As a result of this R and D effort, the VTD process has now achieved a status in which linear coating speeds in excess of 8 ft/min have been achieved for the semiconductor, equal to about two modules per minute, or 144 kW per 24 hour day. The process has been implemented in a production line, which is capable of round-the-clock continuous production of coated substrates 120 cm x 60 cm in size at a rate of 1 module every four minutes, equal to 18 kW/day. Currently the system cycle time is limited by the rate of glass introduction into the system and glass heating, but not by the rate of the semiconductor deposition. A new SCI record efficiency of 14.1% has been achieved for the cells.

Powell, R.C.; Dorer, G.L.; Jayamaha, U.; Hanak, J.J. [Solar Cells, Inc., Toledo, OH (United States)

1998-09-01T23:59:59.000Z

207

Hydrothermal time analysis of seed dormancy in true (botanical) potato seeds  

E-Print Network (OSTI)

germination and shoot-radicle elongation of Ambrosia artemisiifolia. Weed Science 47, 557­562. Hydrothermal

Bradford, Kent

208

Throughput-cost analysis of optical flow switching  

E-Print Network (OSTI)

In this paper, we employ a cost model embodying major sources of capital expenditure (CapEx) to compare the throughput-cost tradeoff offered by optical flow switching to that of more traditional optical network architectures.

Chan, Vincent W. S.

209

Outage-based throughput in wireless packet networks  

E-Print Network (OSTI)

With the increased competition for the electromagnetic spectrum, it is important to characterize the impact of interference in the performance of a wireless packet network, which is traditionally measured by its throughput. ...

Win, Moe Z.

210

Exploratory benefit-cost analysis of environmental controls on hydrothermal energy  

DOE Green Energy (OSTI)

A study of the value of environmental benefits generated by environmental regulation of hydrothermal sites was initiated to compare these benefits with the estimated costs of regulation. Primary objectives were to 1) evaluate the environmental damages caused by unregulated hydrothermal resource development, 2) use existing environmental and economic data to estimate the dollar value of preventing expected environmental damages at two sites, and 3) compare the benefits and costs of preventing the damages. The sites chosen for analyses were in the Imperial Valley at Heber and Niland, California. Reasons for this choice were 1) there is a high level of commercial interest in developing the Heber known geothermal resource area (KGRA) and the Salton Sea KGRA; 2) the potential for environmental damage is high; 3) existing data bases for these two sites are more comprehensive than at other sites. The primary impacts analyzed were those related to hydrogen sulfide (H/sub 2/S) emissions and those related to disposal of spent hydrothermal brine. (MHR)

Scott, M.J.; Wells, K.D.; Currie, J.W.; King, M.J.

1981-02-01T23:59:59.000Z

211

Chemical and isotopic characteristics of the coso east flank hydrothermal  

Open Energy Info (EERE)

isotopic characteristics of the coso east flank hydrothermal isotopic characteristics of the coso east flank hydrothermal fluids: implications for the location and nature of the heat source Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Chemical and isotopic characteristics of the coso east flank hydrothermal fluids: implications for the location and nature of the heat source Details Activities (1) Areas (1) Regions (0) Abstract: Fluids have been sampled from 9 wells and 2 fumaroles from the East Flank of the Coso hydrothermal system with a view to identifying, if possible, the location and characteristics of the heat source inflows into this portion of the geothermal field. Preliminary results show that there has been extensive vapor loss in the system, most probably in response to

212

Direct use of hydrothermal energy: a review of environmental aspects  

DOE Green Energy (OSTI)

The potential environmental impacts of the exploration, development, and production of hydrothermal geothermal energy for direct use applications are reviewed and evaluated. Mitigation strategies and research and development needs are included. (MHR)

O'Banion, K.; Layton, D.

1981-08-28T23:59:59.000Z

213

Comparison Of Hydrothermal Alteration Of Carboniferous Carbonate And  

Open Energy Info (EERE)

Hydrothermal Alteration Of Carboniferous Carbonate And Hydrothermal Alteration Of Carboniferous Carbonate And Siliclastic Rocks In The Valles Caldera With Outcrops From The Socorro Caldera, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Comparison Of Hydrothermal Alteration Of Carboniferous Carbonate And Siliclastic Rocks In The Valles Caldera With Outcrops From The Socorro Caldera, New Mexico Details Activities (3) Areas (2) Regions (0) Abstract: Continental Scientific Drilling Program (CSDP) drill hole VC-2B (total depth 1761.7 m (5780 ft); maximum temperature 295°C) was continuously cored through the Sulphur Springs hydrothermal system in the western ring-fracture zone of the 1.14 Ma Valles caldera. Among other units, the hole penetrated 760.2 m (2494.1 ft) of Paleozoic carbonate and

214

Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange  

Open Energy Info (EERE)

Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange on Openei Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange on Openei Abstract Though exploring for hydrothermal resources is not new, advances in exploration technologies and the pursuit of less visible resources have created a need to outline exploration best practices. This multi-year study outlines 21 geothermal exploration regions in the Western United States. These regions were developed based on the U.S. Geological Survey (USGS) physiographic regions, then adjusted to fit geothermal parameters such as differences in geologic regime, structure, heat source, surface effects

215

Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone  

Open Energy Info (EERE)

Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone Drill Cores Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Oxygen And Carbon Isotope Ratios Of Hydrothermal Minerals From Yellowstone Drill Cores Details Activities (3) Areas (1) Regions (0) Abstract: Oxygen and carbon isotope ratios were measured for hydrothermal minerals (silica, clay and calcite) from fractures and vugs in altered rhyolite, located between 28 and 129 m below surface (in situ temperatures ranging from 81 to 199°C) in Yellowstone drill holes. The purpose of this study was to investigate the mechanism of formation of these minerals. The Δ18O values of the thirty-two analyzed silica samples (quartz, chalcedony, α-cristobalite, and β-cristobalite) range from -7.5 to +2.8‰. About one

216

Property:PotentialGeothermalHydrothermalCapacity | Open Energy Information  

Open Energy Info (EERE)

PotentialGeothermalHydrothermalCapacity PotentialGeothermalHydrothermalCapacity Jump to: navigation, search Property Name PotentialGeothermalHydrothermalCapacity Property Type Quantity Description The nameplate capacity technical potential from Geothermal Hydrothermal for a particular place. Use this property to express potential electric energy generation, such as Nameplate Capacity. The default unit is megawatts (MW). For spatial capacity, use property Volume. Acceptable units (and their conversions) are: 1 MW,MWe,megawatt,Megawatt,MegaWatt,MEGAWATT,megawatts,Megawatt,MegaWatts,MEGAWATT,MEGAWATTS 1000 kW,kWe,KW,kilowatt,KiloWatt,KILOWATT,kilowatts,KiloWatts,KILOWATT,KILOWATTS 1000000 W,We,watt,watts,Watt,Watts,WATT,WATTS 1000000000 mW,milliwatt,milliwatts,MILLIWATT,MILLIWATTS 0.001 GW,gigawatt,gigawatts,Gigawatt,Gigawatts,GigaWatt,GigaWatts,GIGAWATT,GIGAWATTS

217

Fluid Inclusion Gas Compositions From An Active Magmatic-Hydrothermal...  

Open Energy Info (EERE)

provide a complete transect across the thermal system and samples of the modern-day steam. The hydrothermal system was liquid-dominated prior to formation of the modern...

218

Forecasting Electricity Prices in an Optimization Hydrothermal Problem  

Science Conference Proceedings (OSTI)

This paper presents an economic dispatch algorithm in a hydrothermal system within the framework of a competitive and deregulated electricity market. The optimization problem of one firm is described

J. M. Matías; L. Bayón; P. Suárez; A. Argüelles; J. Taboada

2007-01-01T23:59:59.000Z

219

Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera...  

Open Energy Info (EERE)

Sources Of Chloride In Hydrothermal Fluids From The Valles Caldera, New Mexico- A 36Cl Study Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article:...

220

High-throughput and in situ EDXRD investigation on the formation of two new metal aminoethylphosphonates - Ca(O{sub 3}PC{sub 2}H{sub 4}NH{sub 2}) and Ca(OH)(O{sub 3}PC{sub 2}H{sub 4}NH{sub 3}){center_dot}2H{sub 2}O  

SciTech Connect

The system Ca{sup 2+}/2-aminoethylphosphonic acid/H{sub 2}O/NaOH was systematically investigated using high-throughput methods. The experiments led to one new compound Ca(O{sub 3}PC{sub 2} H{sub 4}NH{sub 2}) (1) and the crystal structure was determined using in house X-ray powder diffraction data (monoclinic, P2{sub 1}/c, a=9.7753(3), b=6.4931(2), c=8.4473(2) A, {beta}=106.46(2) Degree-Sign , V=514.20(2) A{sup 3}, Z=4). The formation of 1 was investigated by in situ energy dispersive X-ray diffraction measurements (EDXRD) at beamline F3 at HASYLAB (light source DORIS III), DESY, Hamburg. An intermediate, Ca(OH)(O{sub 3}PC{sub 2}H{sub 4}NH{sub 3}){center_dot}2H{sub 2}O (2), was observed and could be isolated from the reaction mixture at ambient temperatures by quenching the reaction. The crystal structure of 2 was determined from XRPD data using synchrotron radiation (monoclinic, P2{sub 1}/m, a=11.2193(7), b=7.1488(3), c=5.0635(2) A, {beta}=100.13(4) Degree-Sign , V=399.78(3) A{sup 3}, Z=2). - Graphical abstarct: The detailed in situ energy dispersive X-ray diffraction (EDXRD) investigation on the formation of the new inorganic-organic hybrid compound Ca(O{sub 3}PC{sub 2}H{sub 4}NH{sub 2}) leads to the discovery of a new crystalline intermediate phase. Both crystal structures were elucidated using X-ray powder diffraction data. Highlights: Black-Right-Pointing-Pointer High-throughput investigation led to new metal aminoethylphosphonate Ca(O{sub 3}PC{sub 2}H{sub 4}NH{sub 2}). Black-Right-Pointing-Pointer The formation of Ca(O{sub 3}PC{sub 2}H{sub 4}NH{sub 2}) was followed by in situ EDXRD measurements. Black-Right-Pointing-Pointer The crystalline intermediate Ca(O{sub 3}PC{sub 2}H{sub 4}NH{sub 3})(OH){center_dot}2H{sub 2}O was discovered. Black-Right-Pointing-Pointer Isolation of Ca(O{sub 3}PC{sub 2}H{sub 4}NH{sub 3})(OH){center_dot}2H{sub 2}O was accomplished by quenching experiments. Black-Right-Pointing-Pointer The structures were determined using X-ray powder diffraction data.

Schmidt, Corinna; Feyand, Mark [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet, Max-Eyth Strasse 2, D 24118 Kiel (Germany); Rothkirch, Andre [HASYLAB, DESY Hamburg, Notkestrasse 85, 22607 Hamburg (Germany); Stock, Norbert, E-mail: stock@ac.uni-kiel.de [Institut fuer Anorganische Chemie, Christian-Albrechts-Universitaet, Max-Eyth Strasse 2, D 24118 Kiel (Germany)

2012-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

High-Throughput Multiplex Screening of Biomolecule Samples ...  

A Berkeley Lab team of researchers led by Hoi-Ying Holman has invented a fast and elegant system for on-chip printing of picoliter-sized samples of plant cell-wall ...

222

High-throughput sequencing of cytosine methylation in plant DNA  

E-Print Network (OSTI)

to that in flowering plants around repeat regions [15]. The green algae Chlorella sp. NC64A and Volvox carteri show very little methylation in non-CpG contexts in genes, and greatly reduced or absent non-CpG methylation at repetitive regions, with Volvox carteri... showing greatly reduced methylation in all contexts compared to other plant species [15]. Similarly, the distributions of methyla- tion in the green algae Chlamydomonas, while not wholly divergent from those in flowering plants [49], show much lower levels...

Hardcastle, Thomas J

2013-06-07T23:59:59.000Z

223

High-throughput Synthesis and Metrology of Graphene Materials  

E-Print Network (OSTI)

24 2.5 Demonstration of PGN based Supercapacitor2-11 (a) CV curves of supercapacitor based on as-grown PGNFigure 2-12 CV curves of supercapacitor based on HNO3 acid

Ghazinejad, Maziar Ghazinejad

2012-01-01T23:59:59.000Z

224

High-Throughput Dry Processes for Large-Area Devices  

DOE Green Energy (OSTI)

In October 1996, an interdisciplinary team began a three-year LDRD project to study the plasma processes of reactive ion etching and plasma-enhanced chemical vapor deposition on large-area silicon devices. The goal was to develop numerical models that could be used in a variety of applications for surface cleaning, selective etching, and thin-film deposition. Silicon solar cells were chosen as the experimental vehicle for this project because an innovative device design was identified that would benefit from immediate performance improvement using a combination of plasma etching and deposition processes. This report presents a summary of the technical accomplishments and conclusions of the team.

BUSS,RICHARD J.; HEBNER,GREGORY A.; RUBY,DOUGLAS S.; YANG,PIN

1999-11-01T23:59:59.000Z

225

High Throughput Quantification of Grain Boundary Segregation by ...  

Science Conference Proceedings (OSTI)

... by Correlative Transmission Electron Microscopy and Atom Probe Tomography ... Line Tension of Grain Boundary Triple Junctions in the Copper Tricrystals.

226

High-?Throughput and Ab IniYo Molecular Dynamics ...  

Science Conference Proceedings (OSTI)

... Addigon of phonons for a empt frequencies, thermal expansion (See Chelsea Zacherl talk for efficient ... vacancy requires the handling of two extra ...

2012-10-01T23:59:59.000Z

227

Algorithms for high-throughput disk-to-disk sorting  

Science Conference Proceedings (OSTI)

In this paper, we present a new out-of-core sort algorithm, designed for problems that are too large to fit into the aggregate RAM available on modern supercomputers. We analyze the performance including the cost of IO and demonstrate the fastest (to ... Keywords: asynchronous methods, distributed-memory parallelism, hypercube, out-of-core algorithms, parallel algorithms, quicksort, samplesort, shared-memory parallelism, sorting

Hari Sundar, Dhairya Malhotra, Karl W. Schulz

2013-11-01T23:59:59.000Z

228

Operational streamlining in a high-throughput genome sequencing center  

E-Print Network (OSTI)

Advances in medicine rely on accurate data that is rapidly provided. It is therefore critical for the Genome Sequencing platform of the Broad Institute of MIT and Harvard to continually strive to reduce cost, improve ...

Person, Kerry P. (Kerry Patrick)

2006-01-01T23:59:59.000Z

229

High Throughput/Combinatorial Screening of Hydrogen Storage Materials...  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE targets * Synthesis Methodology - Need: discrete, scalable sample preparation Ball milling predominant in literature Solvent approach of interest * Characterization Methodology...

230

Leveraging high-throughput datasets for studies of gene regulation  

E-Print Network (OSTI)

In this thesis, I leveraged computational methods on biological data to better understand gene regulation and development of the human body, as well as of the model organisms mouse and yeast. Firstly, I tackled biological ...

Yen, Angela

2011-01-01T23:59:59.000Z

231

High-Throughput Nanofabrication of Infrared Plasmonic Nanoantenna Arrays for  

E-Print Network (OSTI)

are used with calcium fluoride and barium fluoride filters to separate the atomic oxygen 130.4 nm line from A has a calcium fluoride (CaF2) filter placed in front of the detector and channel B has a barium. The hardware, software and procedures used for ground testing will be re-used during on-orbit operations

232

Building a High Throughput Screening Facility in an Academic Setting  

E-Print Network (OSTI)

being developed in the biotechnology and pharmaceutical industries as means to speed the identification share some of the same goals as their counterparts in industry, their needs also differ in key ways. For example, most industry screening programs focus their efforts on a relatively small number of disease

Mitchison, Tim

233

Improved Algae-based Biorefining and High-throughput Vaccine ...  

measurements, in conjunction with photosynthesis and lipid assays. Vaccine for Prevention and Treatment of Autoimmune Diseases Page 1 of 1 IP Status: Available for

234

Computational Methods for Learning Bayesian Networks from High-Throughput  

E-Print Network (OSTI)

of the analysis thus far has focused on identifying differential measurements, which form the basis of biomarker being measured. The holy grail of such techniques is the robust identification of causal models measurements of cellular activity. Specifically, we will sur- vey computational methods for learning Bayesian

Subramanian, Devika

235

Microchip Technology for High-Throughput Cancer Pathology  

E-Print Network (OSTI)

ribosomal RNA RTD . . . . . . . . . . . . . . . . . . . . .temperature detectors (RTD’s) patterned directly onto the

Duberow, Jr, David Paul

2009-01-01T23:59:59.000Z

236

Applications of High-Throughput Screening Tools for Thermoelectric ...  

Science Conference Proceedings (OSTI)

Author(s), Winnie Wong-Ng, Makoto Otani, Joshua Martin, Evans L Thomas, Yonggao Yan, Martin L Green. On-Site Speaker (Planned), Winnie Wong-Ng.

237

High-Throughput identification of chemistry in life science texts  

Science Conference Proceedings (OSTI)

OSCAR3 is an open extensible system for the automated annotation of chemistry in scientific articles, which can process thousands of articles per hour. This XML annotation supports applications such as interactive browsing and chemically-aware searching, ...

Peter Corbett; Peter Murray-Rust

2006-09-01T23:59:59.000Z

238

Integrated microbioreactor arrays for high-throughput experimentation  

E-Print Network (OSTI)

Bioprocesses with microbial cells play an important role in producing biopharmaceuticals such as human insulin and human growth hormone, and other products such as amino acids and biopolymers. Because bioprocesses involve ...

Lee, Harry, 1976-

2006-01-01T23:59:59.000Z

239

Performance and scalability of OpenMP programs on the sun FireTM e25k throughput computing server  

Science Conference Proceedings (OSTI)

The Sun FireTM K is the first generation of high-end servers built to the Throughput Computing strategy of Sun Microsystems. The server can scale up to 72 UltraSPARC® IV processors with Chip MultiThreading (CMT) technology, and execute ...

Myungho Lee; Brian Whitney; Nawal Copty

2004-05-01T23:59:59.000Z

240

Mechanical and transport properties of rocks at high temperatures and pressures. Task II. Fracture permeability of crystalline rocks as a function of temperature, pressure, and hydrothermal alteration. Final report  

DOE Green Energy (OSTI)

Pore-fluid chemical interactions on both short and long time scales can significantly change the permeability of a rock. Measurement of the permeability variations requires adaption and modification on standard measurement systems, with special attention given to pore-fluid flow rates and metal corrosion of system components. In this report, system requirements and capabilities are reviewed, analyzed, and recommendations made. Special attention is given to the choice of corrosion resistant metals, fluid-flow systems, back-pressure systems, jacketing materials, and flow-rate measurement. On the basis of this study, an economical, highly flexible, permeability system was designed and built. The system allows measurement of permeability over the darcy to nanodarcy range, using geologically meaningful, chemically reactive, pore fluids under constant volume flow rates as small as 0.2 ml/day at temperatures in excess of 300C, fluid pressures to 20 MPa, and confining pressures to 100 MPa. 7 refs., 3 figs., 1 tab.

Johnson, B.

1985-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Fundamental Chemistry And Thermodynamics Of Hydrothermal Oxidation Processes  

DOE Green Energy (OSTI)

Hydrothermal oxidation (HTO) is a promising technology for the treatment of aqueous-fluid hazardous and mixed waste streams. Waste streams identified as likely candidates for treatment by this technology are primarily aqueous fluids containing hazardous organic compounds, and often containing inorganic compounds including radioisotopes (mixed wastes). These wastes are difficult and expensive to treat by conventional technologies (e.g. incineration) due to their high water content; in addition, incineration can lead to concerns related to stack releases. An especially attractive potential advantage of HTO over conventional treatment methods is the total containment of all reaction products within the overall system. The potential application of hydrothermal oxidation (HTO) technology for the treatment of DOE hazardous or mixed wastes has been uncertain due to concerns about safe and efficient operation of the technology. In principle, aqueous DOE wastes, including hazardous an d mixed waste, can be treated with this technology. Oxidation reactions are carried out in the aqueous phase at high temperatures ({approx}600 C), effectively converting organic waste constituents to nonhazardous materials (e.g., CO2). Inorganic materials which become insoluble in supercritical water may precipitate as scales adhering to components of the reactor, limiting reactor availability and necessitating frequent cleaning of the system. Also, most hazardous organic compounds contain heteroatoms (other than carbon, hydrogen, and oxygen). These heteroatoms, including halides (F, Cl, Br, I), sulfur, phosphorus, and some nitrogen groups, form strong mineral acids on oxidation of the organic compounds, resulting in a solution having low pH and high oxidation potential. This combination, in conjunction with the high temperatures and high fluid densities attained in both the heating and cooling regions of an HTO reactor, can lead to corrosion of structural materials (usually metal s) anticipated for use in HTO reactor construction. Methods have been suggested for mitigating the problems arising from the production of mineral acids and insoluble solids in HTO processes (Barnes et al., 1993). Previous work in this Laboratory centered on the problems arising from the presence of corrosive or insoluble inorganic compounds in HTO fluids (Simonson et al., 1993, 1994, 1995). However, significant gaps in our knowledge of process chemistry remained at the initiation of this project. It was not possible to determine accurately the properties of coexisting fluid phases; the solubilities of radioactive components of mixed wastes were unknown at high temperatures; and molecular level understanding of interparticle interactions was needed for reliable extrapolation of phenomenological equations for solution behavior beyond the range of experimental results. The present project was undertaken to address these deficiencies. The project was undertaken to provide fundamental information needed to support deployment decisions related to HTO technology, and no innovations in the technology per se were anticipated. Rather, the innovations of this project involved applying new or existing experimental and modeling approaches to studies of aqueous inorganic reactions and properties under the rigorous anticipated HTO operating conditions. This work was made possible in part through the support of researchers at ORNL and the University of Tennessee, Knoxville, by the Division of Chemical Sciences, Geosciences and Biosciences, Office of Basic Energy Sciences of the Department of Energy. This support has allowed significant, unique experimental and 2 computational resources to be developed for studies of aqueous solution chemistry at high temperatures and pressures.

Simonson, J.M.

2001-12-31T23:59:59.000Z

242

Periodic deep?sea hydrothermal vent activities observed by hydrophones at Mariana, Okinawa, and Mid?Atlantic Ridge  

Science Conference Proceedings (OSTI)

Deep?sea hydrothermal vent activities were studied done by digital OBS/Hs(Ocean Bottom Seismometer / Hydrophone) at three hydrothermal vent areas

Kasahara Junzo; Sato Toshinori; Nishizawa Azusa; Fujioka Kantaro

1996-01-01T23:59:59.000Z

243

Verification of numerical models for hydrothermal plume water through field measurements at TAG  

E-Print Network (OSTI)

Hydrothermal vents discharge superheated, mineral rich water into our oceans, thereby providing a habitat for exotic chemosynthetic biological communities. Hydrothermal fluids are convected upwards until they cool and reach ...

Wichers, Sacha

2005-01-01T23:59:59.000Z

244

Geochemistry of hydrothermal vent fluids from the northern Juan De Fuca Ridge  

E-Print Network (OSTI)

The presence of aqueous organic compounds derived from sedimentary organic matter has the potential to influence a range of chemical processes in hydrothermal vent environments. For example, hydrothermal alteration experiments ...

Cruse, Anna M. (Anna Marie)

2003-01-01T23:59:59.000Z

245

K-Ar Dates Of Hydrothermal Clays From Core Hole Vc-2B, Valles...  

Open Energy Info (EERE)

icon K-Ar Dates Of Hydrothermal Clays From Core Hole Vc-2B, Valles Caldera, New Mexico And Their Relation To Alteration In A Large Hydrothermal System Jump to: navigation,...

246

Spatial And Temporal Geochemical Trends In The Hydrothermal System Of  

Open Energy Info (EERE)

Spatial And Temporal Geochemical Trends In The Hydrothermal System Of Spatial And Temporal Geochemical Trends In The Hydrothermal System Of Yellowstone National Park- Inferences From River Solute Fluxes Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Spatial And Temporal Geochemical Trends In The Hydrothermal System Of Yellowstone National Park- Inferences From River Solute Fluxes Details Activities (2) Areas (1) Regions (0) Abstract: We present and analyze a chemical dataset that includes the concentrations and fluxes of HCO3-, SO42-, Cl-, and F- in the major rivers draining Yellowstone National Park (YNP) for the 2002-2004 water years (1 October 2001 - 30 September 2004). The total (molar) flux in all rivers decreases in the following order, HCO3- > Cl- > SO42- > F-, but each river is characterized by a distinct chemical composition, implying large-scale

247

Adventive Hydrothermal Circulation On Stromboli Volcano (Aeolian Islands,  

Open Energy Info (EERE)

Adventive Hydrothermal Circulation On Stromboli Volcano (Aeolian Islands, Adventive Hydrothermal Circulation On Stromboli Volcano (Aeolian Islands, Italy) Revealed By Geophysical And Geochemical Approaches- Implications For General Fluid Flow Models On Volcanoes Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Adventive Hydrothermal Circulation On Stromboli Volcano (Aeolian Islands, Italy) Revealed By Geophysical And Geochemical Approaches- Implications For General Fluid Flow Models On Volcanoes Details Activities (0) Areas (0) Regions (0) Abstract: On March 15th 2007 a paroxysmal explosion occurred at the Stromboli volcano. This event generated a large amount of products, mostly lithic blocks, some of which impacted the ground as far as down to 200 m a.s.l., about 1.5 km far away from the active vents. Two days after the

248

Hydrothermal Heat Discharge In The Cascade Range, Northwestern United  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » Hydrothermal Heat Discharge In The Cascade Range, Northwestern United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Hydrothermal Heat Discharge In The Cascade Range, Northwestern United States Details Activities (3) Areas (1) Regions (0) Abstract: Hydrothermal heat discharge in the Cascade Range includes the heat discharged by thermal springs, by "slightly thermal" springs that are only a few degrees warmer than ambient temperature, and by fumaroles. Thermal-spring heat discharge is calculated on the basis of chloride-flux measurements and geothermometer temperatures and totals ~ 240 MW in the U.S. part of the Cascade Range, excluding the transient post-1980 discharge

249

GEOLOGY AND HYDROTHERMAL ALTERATION OF THE RAFT RIVER GEOTHERMAL SYSTEM,  

Open Energy Info (EERE)

GEOLOGY AND HYDROTHERMAL ALTERATION OF THE RAFT RIVER GEOTHERMAL SYSTEM, GEOLOGY AND HYDROTHERMAL ALTERATION OF THE RAFT RIVER GEOTHERMAL SYSTEM, IDAHO Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: GEOLOGY AND HYDROTHERMAL ALTERATION OF THE RAFT RIVER GEOTHERMAL SYSTEM, IDAHO Details Activities (3) Areas (1) Regions (0) Abstract: The Raft River geothermal system is located in southern Idaho, near the Utah-Idaho state boarder in the Raft River Valley. The field, which is owned and operated by U.S. Geothermal, has been selected as an EGS demonstration site by the U. S. Department of Energy. This paper summarizes ongoing geologic and petrologic investigations being conducted in support of this project. The reservoir is developed in fractured Proterozoic schist and quartzite, and Archean quartz monzonite cut by younger diabase

250

A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal  

Open Energy Info (EERE)

Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Helium Isotope Perspective On The Dixie Valley, Nevada, Hydrothermal System Details Activities (3) Areas (1) Regions (0) Abstract: Fluids from springs, fumaroles, and wells throughout Dixie Valley, NV were analyzed for noble gas abundances and isotopic compositions. The helium isotopic compositions of fluids produced from the Dixie Valley geothermal field range from 0.70 to 0.76 Ra, are among the highest values in the valley, and indicate that similar to 7.5% of the total helium is derived from the mantle. A lack of recent volcanics or other potential sources requires flow of mantle-derived helium up along the

251

Volatiles in hydrothermal fluids- A mass spectrometric study of fluid  

Open Energy Info (EERE)

Volatiles in hydrothermal fluids- A mass spectrometric study of fluid Volatiles in hydrothermal fluids- A mass spectrometric study of fluid inclusions from active geothermal systems Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Volatiles in hydrothermal fluids- A mass spectrometric study of fluid inclusions from active geothermal systems Details Activities (4) Areas (4) Regions (0) Abstract: A system for analysis of inclusion gas contents based upon quadrupole mass spectrometry has been designed, assembled and tested during the first 7 months of funding. The system is currently being tested and calibrated using inclusions with known gas contents from active geothermal systems. Analyses are in progress on inclusions from the Salton Sea, Valles Caldera, Geysers, and Coso geothermal systems. Author(s): Mckibben, M. A.

252

Throughput and Channel Access Statistics of Generalized Selection Multiuser Scheduling  

Science Conference Proceedings (OSTI)

To provide a near-optimal low-complexity solution to parallel multiuser scheduling in code-division multiple-access (CDMA), we propose generalized selection multiuser diversity (GSMuD) schemes with multi-code channel assignment and analyze their performance. ... Keywords: Multiuser diversity, channel access statistics, fairness, generalized fading channels, multicode CDMA, throughput

Yao Ma; Jinghua Jin; Dongbo Zhang

2008-08-01T23:59:59.000Z

253

Stability of a processor sharing queue with varying throughput  

E-Print Network (OSTI)

In this paper, we present a stability criterion for Processor Sharing queues, in which the throughput may depend on the number of customers in the system (in such cases such as interferences between the users). Such a system is represented by a point measure-valued stochastic recursion keeping track of the remaining processing times of the customers.

Moyal, Pascal

2008-01-01T23:59:59.000Z

254

Metabolic adaptation for low energy throughput in orangutans  

E-Print Network (OSTI)

reflect known differences in life history. Using the doubly labeled water method, we measured daily energy. daily energy expenditure | energetics | life history | doubly labeled water All animals require energy history of orangutans results from decreased energy throughput rather than changes in energy allocation

Pontzer, Herman

255

Maximizing Throughput for Queries over Streaming Sensor Data  

E-Print Network (OSTI)

of Computer Science The George Washington University Washington, DC, USA Email: {joegomes throughput for sliding window based multi-join queries over con- tinuous sensor data streams. We develop joining two unbounded streams. Therefore it is more sensible and useful to impose window predicates

Choi, Hyeong-Ah

256

An organized effort to develop the hydrothermal energy resource  

DOE Green Energy (OSTI)

As a response to America's need for alternate energy sources, the US Department of Energy has a Geothermal Program. Within this program is a Hydrothermal category. Currently, a wide range of tasks are being addressed as part of the Hydrothermal Program. The tasks include Industrialization, Reservoir Technology, Hard Rock Penetration and Conversion Technology. It is thought that successes already made in this program combined with upcoming successes will increase the likelihood of geothermal energy becoming a contributor to our nation's future energy needs. 4 refs.

Taylor, K.J.

1989-01-01T23:59:59.000Z

257

An Organized Effort to Develop the Hydrothermal Energy Resource  

DOE Green Energy (OSTI)

As a response to America's need for Alternate Energy sources, the U.S. Department of Energy has a Geothermal Program. Within this program is a Hydrothermal category. Currently, a wide range of tasks are being addressed as part of the Hydrothermal Program. The tasks include Industrialization, Reservoir Technology, Hard Rock Penetration and Conversion Technology. It is thought that successes already made in this program combined with upcoming successes will increase the likelihood of geothermal energy becoming a contributor to our nations future energy needs.

Taylor, Kenneth J.

1989-03-21T23:59:59.000Z

258

Integration of hydrothermal-energy economics: related quantitative studies  

DOE Green Energy (OSTI)

A comparison of ten models for computing the cost of hydrothermal energy is presented. This comparison involved a detailed examination of a number of technical and economic parameters of the various quantitative models with the objective of identifying the most important parameters in the context of accurate estimates of cost of hydrothermal energy. Important features of various models, such as focus of study, applications, marked sectors covered, methodology, input data requirements, and output are compared in the document. A detailed sensitivity analysis of all the important engineering and economic parameters is carried out to determine the effect of non-consideration of individual parameters.

Not Available

1982-08-01T23:59:59.000Z

259

Workshop on magma/hydrothermal drilling and instrumentation  

DOE Green Energy (OSTI)

The discussions, conclusions, and recommendations of the Magma/Hydrothermal Drilling and Instrumentation Workshop, Albuquerque, NM, May 31--June 2, 1978 are summarized. Three working groups were organized as follows: Drilling Location and Environment, Drilling and Completion Technology, and Logging and Instrumentation Technology. The first group discussed potential drilling sites and the environment that could be expected in drilling to magma depth at each site. Sites suggested for early detailed evaluation as candidate drilling sites were The Geysers-Clear Lake, CA, Kilauea, HI, Long Valley-Mono Craters, CA, and Yellowstone, WY. Magma at these sites is expected to range from 3 to 10 km deep with temperatures of 800 to 1100{sup 0}C. Detailed discussions of the characteristics of each site are given. In addition, a list of geophysical measurements desired for the hole is presented. The Drilling and Completion Group discussed limitations on current rotary drilling technology as a function of depth and temperature. The group concluded that present drilling systems can be routinely used to temperatures of 200{sup 0}C and depths to 10 km; drilling to 350{sup 0}C can be accomplished with modifications of present techniques, drilling at temperatures from 350{sup 0}C to 1100{sup 0}C will require the development of new drilling techniques. A summary of the limiting factors in drilling systems is presented, and recommendations for a program directed at correcting these limitations is described. The third group discussed requirements for instrumentation and established priorities for the development of the required instruments. Of highest priority for development were high resolution temperature tools, sampling techniques (core, formation fluids), chemical probes, and communications techniques. A description of instrumentation requirements for the postulated hole is given, and the tasks necessary to develop the required devices are delineated.

Varnado, S.G.; Colp, J.L. (eds.)

1978-07-01T23:59:59.000Z

260

Tracing element sources of hydrothermal mineral deposits: REE and ...  

Science Conference Proceedings (OSTI)

inclusion studies are the only way to obtain direct evidence from these ... and eastern part of the Derbyshire Dome (Fig. 1). The ... calcite is more abundant in the western part of the vein ...... and hydrothermal fluids, it is hard to understand why.

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Hydrothermal Testing of K Basin Sludge and N Reactor Fuel at Sludge Treatment Project Operating Conditions  

DOE Green Energy (OSTI)

The Sludge Treatment Project (STP), managed for the U. S. DOE by Fluor Hanford (FH), was created to design and operate a process to eliminate uranium metal from K Basin sludge prior to packaging for Waste Isolation Pilot Plant (WIPP). The STP process uses high temperature liquid water to accelerate the reaction, produce uranium dioxide from the uranium metal, and safely discharge the hydrogen. Under nominal process conditions, the sludge will be heated in pressurized water at 185°C for as long as 72 hours to assure the complete reaction (corrosion) of up to 0.25-inch diameter uranium metal pieces. Under contract to FH, the Pacific Northwest National Laboratory (PNNL) conducted bench-scale testing of the STP hydrothermal process in November and December 2006. Five tests (~50 ml each) were conducted in sealed, un-agitated reaction vessels under the hydrothermal conditions (e.g., 7 to 72 h at 185°C) of the STP corrosion process using radioactive sludge samples collected from the K East Basin and particles/coupons of N Reactor fuel also taken from the K Basins. The tests were designed to evaluate and understand the chemical changes that may be occurring and the effects that any changes would have on sludge rheological properties. The tests were not designed to evaluate engineering aspects of the process. The hydrothermal treatment affected the chemical and physical properties of the sludge. In each test, significant uranium compound phase changes were identified, resulting from dehydration and chemical reduction reactions. Physical properties of the sludge were significantly altered from their initial, as-settled sludge values, including, shear strength, settled density, weight percent water, and gas retention.

Delegard, Calvin H.; Schmidt, Andrew J.; Thornton, Brenda M.

2007-03-30T23:59:59.000Z

262

Cellular Effect of High Doses of Silica-Coated Quantum Dot ...  

Cellular Effect of High Doses of Silica-Coated Quantum Dot Profiled with High Throughput Gene Expression Analysis and High Content Cellomics ...

263

Throughput of Wireless Networks Powered by Energy Harvesting  

E-Print Network (OSTI)

Designing mobile devices for harvesting ambient energy such as kinetic activities or electromagnetic radiation (EMR) will enable mobile networks to self sustain besides alleviate global warming. The throughput of a mobile ad hoc network powered by energy harvesting is analyzed in this paper using a stochastic-geometry approach. The transmitters powered by energy harvesting are modeled as a Poisson point process (PPP); each transmits to a receiver at an unit distance using either a random-access protocol or the time-hopping multiple access (THMA) and satisfying an outage-probability constraint. Consider non-EMR energy harvesting where energy packets of random sizes arrive at a transmitter following a stationary random process. By applying Mapping Theorem, the network (spatial) throughput for random access and in the limit of a long harvesting interval is derived in simple closed-form functions of the energy-arrival rate, transmitter density and coding rate. These results show that the throughput of a sparse ne...

Huang, Kaibin

2011-01-01T23:59:59.000Z

264

Enhanced sludge processing of HLW: Hydrothermal oxidation of chromium, technetium, and complexants by nitrate. 1997 mid-year progress report  

SciTech Connect

'Treatment of High Level Waste (HLW) is the second most costly problem identified by OEM. In order to minimize costs of disposal, the volume of HLW requiring vitrification and long term storage must be reduced. Methods for efficient separation of chromium from waste sludges, such as the Hanford Tank Wastes (HTW), are key to achieving this goal since the allowed level of chromium in high level glass controls waste loading. At concentrations above 0.5 to 1.0 wt.% chromium prevents proper vitrification of the waste. Chromium in sludges most likely exists as extremely insoluble oxides and minerals, with chromium in the plus III oxidation state [1]. In order to solubilize and separate it from other sludge components, Cr(III) must be oxidized to the more soluble Cr(VI) state. Efficient separation of chromium from HLW could produce an estimated savings of $3.4B[2]. Additionally, the efficient separation of technetium [3], TRU, and other metals may require the reformulation of solids to free trapped species as well as the destruction of organic complexants. New chemical processes are needed to separate chromium and other metals from tank wastes. Ideally they should not utilize additional reagents which would increase waste volume or require subsequent removal. The goal of this project is to apply hydrothermal processing for enhanced chromium separation from HLW sludges. Initially, the authors seek to develop a fundamental understanding of chromium speciation, oxidation/reduction and dissolution kinetics, reaction mechanisms, and transport properties under hydrothermal conditions in both simple and complex salt solutions. The authors also wish to evaluate the potential of hydrothermal processing for enhanced separations of technetium and TRU by examining technetium and TRU speciation at hydrothermal conditions optimal for chromium dissolution.'

Buelow, S.

1997-06-01T23:59:59.000Z

265

Hydrothermal Alteration Mineral Mapping Using Hyperspectral Imagery in Dixie Valley, Nevada  

DOE Green Energy (OSTI)

Hyperspectral (HyMap) data was used to map the location of outcrops of high temperature, hydrothermally alterated minerals (including alunite, pyrophyllite, and hematite) along a 15 km swath of the eastern front of the Stillwater Mountain Range in Dixie Valley, Nevada. Analysis of this data set reveals that several outcrops of these altered minerals exist in the area, and that one outcrop, roughly 1 square kilometer in area, shows abundant high temperature alteration. Structural analysis of the altered region using a Digital Elevation Model (DEM) suggests that this outcrop is bounded on all sides by a set of cross-cutting faults. This fault set lies within the Dixie Valley Fault system (Caskey et al. 1996). Both the intense alteration in this area and the presence of cross-cutting faults indicate a high probability of recent hot fluid escape.

Kennedy-Bowdoin, T; Martini, B A; Silver, E A; Pickles, W L

2004-04-02T23:59:59.000Z

266

Heat flow in relation to hydrothermal activity in the southern Black Rock Desert, Nevada  

DOE Green Energy (OSTI)

As part of an investigation of the Gerlach NE KGRA (Known Geothermal Resource Area) a number of heat-flow measurements were made in playa sediments of the southern Black Rock Desert, northwestern Nevada. These data together with additional previously unpublished heat-flow values reveal a complex pattern of heat flow with values ranging between 1.0 to 5.0 HFU (40 to 100 mWm/sup -2/) outside of the hot springs area. The mean heat flow for the 13 reported sites in the southern Black Rock Desert is 1.8 +- 0.15 HFU (75 +- 6 mWm/sup -2/). The complexity of the pattern of heat flow is believed to arise from hydrothermal circulation supporting the numerous hot springs throughout the region. The fact that the lowest observed heat flow occurs in the deepest part of the basin strongly suggests that fluid movement within the basin represents part of the recharge for the hydrothermal system. A thermal balance for the system incorporating both anomalous conductive heat loss and convective heat loss from the spring systems indicate a total energy loss of about 8.0 Mcal/sec or 34 megawatts over an estimated 1000 km/sup 2/ region. Consideration of this additional heat loss yields a mean regional heat flow of 2.5 + HFU (100 + mWm/sup -2/) and warrants inclusion of this region in the Battle Mountain heat-flow high (Lachenbruch and Sass, 1977, 1978).

Sass, J.H.; Zoback, M.L.; Galanis, S.P. Jr.

1979-01-01T23:59:59.000Z

267

Hydrothermal research and development assessment. Task force report: projections for electric systems  

DOE Green Energy (OSTI)

It is estimated that high temperature (greater than 150/sup 0/C or 300/sup 0/F) hydrothermal resources in the western United States have the potential for producing about 140,000 megawatts of electric power for 30 years. The objectives of the present analysis were to realistically evaluate the extent to which these resources might be utilized over the next 20 years, and to assess the probably impact of Federal programs on that utilization. The R and D assessment team interviewed industry personnel to determine the nature and the relative significance of investment decision criteria for developers and utilities. The results of these interviews were used to develop a probabilistic model to simulate the investment decision behavior of these two groups toward hydrothermal resources. Estimations of the characteristics of anticipated available resources (e.g., temperature, salinity, depth) and predictions of the geographic distribution of new resource discoveries were based upon the characteristics and distribution of known reservoirs. The impact of a minimal R and D program and the impact of expanded R and D program were estimated on the basis of its effect upon industry investment decision criteria (e.g., the cost of power). The Task Force estimates comparing three different scenarios: (1) no program, (2) minimal R and D, and (3) expanded R and D are presented.

Not Available

1982-05-01T23:59:59.000Z

268

Mapping Hydrothermal Upwelling and Outflow Zones: Preliminary Results from  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Mapping Hydrothermal Upwelling and Outflow Zones: Preliminary Results from Two-Meter Temperature Data and Geologic Analysis at Lee Allen Springs and Salt Wells Basin Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Mapping Hydrothermal Upwelling and Outflow Zones: Preliminary Results from Two-Meter Temperature Data and Geologic Analysis at Lee Allen Springs and Salt Wells Basin Abstract Two-meter temperature surveys have been conducted at Salt Wells Basin and Lee-Allen Springs geothermal areas with the objective of distinguishing and

269

Lectures on geochemical interpretation of hydrothermal waters | Open Energy  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Lectures on geochemical interpretation of hydrothermal waters Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Lectures on geochemical interpretation of hydrothermal waters Abstract The alkali carbonates, Na, K, and Li, are relatively soluble at all temperatures and generally precipitate only where there is extreme evapora- tion. In contrast, the alkaline earth carbonates. Ca. Ht, Sr, and Ba, are moderately to sparingly soluble and commonly precipitate in bydrothecmal systems. Calcite is by far the most abundant and important carbonate found

270

Mechanochemical-hydrothermal synthesis and characterization of fluoridated hydroxyapatite  

SciTech Connect

Fluoridated hydroxyapatite (FHAp) was successfully synthesized from the starting materials of CaCO{sub 3}, CaHPO{sub 4}.2H{sub 2}O, and CaF{sub 2} via a mechanochemical-hydrothermal route. X-ray diffraction, infrared spectroscopy, surface area measurements, and scanning electron microscopy identified the resultant powders as FHAp nanocrystals with the specific surface areas of up to 114.72 m{sup 2}/g. The mechanism study revealed that under such mechanochemical-hydrothermal conditions the formation reactions of FHAp were completed in two stages. The starting materials firstly reacted into a poorly crystallized calcium-deficient apatite and the complete incorporation of fluoride ions into apatite occurred in the second stage.

Zhang Huigang [Multiphase Reaction Laboratory, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing 100080 (China); Zhu Qingshan [Multiphase Reaction Laboratory, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing 100080 (China)]. E-mail: qszhu@home.ipe.ac.cn; Xie Zhaohui [Multiphase Reaction Laboratory, Institute of Process Engineering, Chinese Academy of Sciences, P.O. Box 353, Beijing 100080 (China)

2005-08-11T23:59:59.000Z

271

Instabilities during liquid migration into superheated hydrothermal systems  

DOE Green Energy (OSTI)

Hydrothermal systems typically consist of hot permeable rock which contains either liquid or liquid and saturated steam within the voids. These systems vent fluids at the surface through hot springs, fumaroles, mud pools, steaming ground and geysers. They are simultaneously recharged as meteoric water percolates through the surrounding rock or through the active injection of water at various geothermal reservoirs. In a number of geothermal reservoirs from which significant amounts of hot fluid have been extracted and passed through turbines, superheated regions of vapor have developed. As liquid migrates through a superheated region of a hydrothermal system, some of the liquid vaporizes at a migrating liquid-vapor interface. Using simple physical arguments, and analogue laboratory experiments we show that, under the influence of gravity, the liquid-vapor interface may become unstable and break up into fingers.

Fitzgerald, Shaun D.; Woods, Andrew W.

1995-01-26T23:59:59.000Z

272

Hydrothermal system in Southern Grass Valley, Pershing County, Nevada  

DOE Green Energy (OSTI)

Southern Grass Valley is a fairly typical extensional basin in the Basin and Range province. Leach Hot Springs, in the southern part of the valley, represents the discharge end of an active hydrothermal flow system with an estimated deep aquifer temperature of 163 to 176/sup 0/C. Results of geologic, hydrologic, geophysical and geochemical investigations are discussed in an attempt to construct an internally consistent model of the system.

Welch, A.H.; Sorey, M.L.; Olmsted, F.H.

1981-01-01T23:59:59.000Z

273

Results of acid treatments in hydrothermal direct heat experiment wells  

SciTech Connect

Matrix acid treatments have been employed in two low-to-moderate temperature hydrothermal wells with successful results. These two wells showed flow rate increases of 40% and 50%. The increased flow reduced the payback periods for the heating systems to nearly one-half of what they were before acidization. It is recommended that well designs in certain areas consider accommodating such acid stimulation techniques, if testing suggests they are warranted as a well completion tool.

Strawn, J.A.

1980-01-01T23:59:59.000Z

274

Massive sulfide deposits and hydrothermal solutions: incremental reaction modeling of mineral precipitation and sulfur isotopic evolution  

DOE Green Energy (OSTI)

Incremental reaction path modeling of chemical and sulfur isotopic reactions occurring in active hydrothermal vents on the seafloor, in combination with chemical and petrographic data from sulfide samples from the seafloor and massive sulfide ore deposits, allows a detailed examination of the processes involved. This paper presents theoretical models of reactions of two types: (1) adiabatic mixing between hydrothermal solution and seawater, and (2) reaction of hydrothermal solution with sulfide deposit materials. In addition, reaction of hydrothermal solution with sulfide deposit minerals and basalt in feeder zones is discussed.

Janecky, D.R.

1986-01-01T23:59:59.000Z

275

Geothermal hydrothermal direct heat use: US market size and market penetration estimates  

Science Conference Proceedings (OSTI)

This study estimates the future regional and national market penetration path of hydrothermal geothermal direct heat applications in the United States. A Technology Substitution Model (MARPEN) is developed and used to estimate the energy market shares captured by low-temperature (50 to 150/sup 0/C) hydrothermal geothermal energy systems over the period 1985 to 2020. The sensitivity of hydrothermal direct heat market shares to various government hydrothermal commercialization policies is examined. Several substantive recommendations to help accelerate commercialization of geothermal direct heat utilization in the United States are indicated and possible additional analyses are discussed.

El Sawy, A.H.; Entingh, D.J.

1980-09-01T23:59:59.000Z

276

The value of rolling horizon policies for risk-averse hydro-thermal ...  

E-Print Network (OSTI)

Oct 7, 2010 ... Abstract: We consider the optimal management of a hydro-thermal power system in the mid and long terms. From the optimization point of view, ...

277

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrotherm...  

Open Energy Info (EERE)

Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

278

Hydrothermal energy extraction, Auburn, New York: Final report: Volume 2, Chapters 6-10  

DOE Green Energy (OSTI)

This paper discusses a hydrothermal energy extraction system in detail. General topics covered are: Reservoir circulation loop; HVAC buffer loop; and automatic temperature control system. (LSP)

Castor, T.P.

1988-03-01T23:59:59.000Z

279

Hydrothermal brecciation in the Jemez Fault zone, Valles Caldera, New Mexico: Results from CSDP (Continental Scientific Drilling Program) corehole VC-1  

DOE Green Energy (OSTI)

Paleozoic and Precambrian rocks intersected deep in Continental Scientific Drilling Program corehole VC-1, adjacent to the late Cenozoic Valles caldera complex, have been disrupted to form a spectacular breccia sequence. The breccias are of both tectonic and hydrothermal origin, and probably formed in the Jemez fault zone, a major regional structure with only normal displacement since mid-Miocene. Tectonic breccias are contorted, crushed, sheared, and granulated; slickensides are commmon. Hydrothermal breccias, by contrast, lack these frictional textures, but arej commonly characterized by fluidized matrix foliation and prominent clast rounding. Fluid inclusions in the hydrothermal breccias are dominantly two-phase, liquid-rich at room temperature, principally secondary, and form two distinctly different compositional groups. Older inclusions, unrelated to brecciation, are highly saline and homogenize to the liquid phase in the temperature range 189 to 246/sup 0/C. Younger inclusions, in part of interbreccia origin, are low-salinity and homogenize (also to liquid) in the range 230 to 283/sup 0/C. Vapor-rich inclusions locally trapped along with these dilute liquid-rich inclusions document periodic boiling. These fluid-inclusion data, together with alteration assemblages and textures as well as the local geologic history, have been combined to model hydrothermal brecciation at the VC-1 site.

Hulen, J.B.; Nielson, D.L.

1987-06-01T23:59:59.000Z

280

Critically loaded queueing models that are throughput suboptimal  

E-Print Network (OSTI)

This paper introduces and analyzes the notion of throughput suboptimality for many-server queueing systems in heavy traffic. The queueing model under consideration has multiple customer classes, indexed by a finite set $\\mathcal{I}$, and heterogenous, exponential servers. Servers are dynamically chosen to serve customers, and buffers are available for customers waiting to be served. The arrival rates and the number of servers are scaled up in such a way that the processes representing the number of class-$i$ customers in the system, $i\\in\\mathcal{I}$, fluctuate about a static fluid model, that is assumed to be critically loaded in a standard sense. At the same time, the fluid model is assumed to be throughput suboptimal. Roughly, this means that the servers can be allocated so as to achieve a total processing rate that is greater than the total arrival rate. We show that there exists a dynamic control policy for the queueing model that is efficient in the following strong sense: Under this policy, for every f...

Atar, Rami; 10.1214/08-AAP551

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Microwave-assisted hydrothermal synthesis of porous SnO{sub 2} nanotubes and their lithium ion storage properties  

SciTech Connect

Porous SnO{sub 2} nanotubes have been synthesized by a rapid microwave-assisted hydrothermal process followed by annealing in air. The detailed morphological and structural studies indicate that the SnO{sub 2} tubes typically have diameters from 200 to 400 nm, lengths from 0.5 to 1.5 {mu}m and wall thicknesses from 50 to 100 nm. The SnO{sub 2} nanotubes are self-assembled by interconnected nanocrystals with sizes {approx}8 nm resulting in a specific surface area of {approx}54 m{sup 2} g{sup -1}. The pristine SnO{sub 2} nanotubes are used to fabricate lithium half cells to evaluate their lithium ion storage properties. The porous SnO{sub 2} nanotubes are characteristic with high lithium ion storage capacity, that is found to be 1258, 951, 757, 603, 458, and 288 mAh g{sup -1}, at 0.1, 0.2, 0.5, 1, 2, and 4C, respectively. The enhanced electrochemical properties of the SnO{sub 2} nanotubes can be ascribed to their unique geometry and porous structures. - Graphical abstract: Porous SnO{sub 2} nanotubes are synthesized by a fast microwave-assisted hydrothermal process and exhibit high lithium ion storage properties due to their unique geometry and porous characteristics. Highlights: Black-Right-Pointing-Pointer A microwave-assisted hydrothermal method was used to prepare porous SnO{sub 2} nanotubes. Black-Right-Pointing-Pointer The porous SnO{sub 2} nanotubes have abundant mesopores on their tube walls. Black-Right-Pointing-Pointer The porous SnO{sub 2} nanotubes possess high lithium ion storage properties. Black-Right-Pointing-Pointer Our results may promote the development of high-performance anode materials.

Wang, H.E., E-mail: hongen.wang@gmail.com [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong); Xi, L.J.; Ma, R.G. [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Lu, Z.G. [School of Chemistry and Chemical Engineering, Central South University, Changsha 410083 (China); Chung, C.Y. [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Bello, I. [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong); Zapien, J.A., E-mail: apjazs@cityu.edu.hk [Department of Physics and Materials Science, City University of Hong Kong (Hong Kong); Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong (Hong Kong)

2012-06-15T23:59:59.000Z

282

The use of air as a natural tracer infractured hydrothermal systems, Los Azufres, Mexico, case study  

DOE Green Energy (OSTI)

Injection of atmospheric air mixed with cold water has been occurring since 1982 at the Los Azufres geothermal field. Several chemical and thermodynamical evidences show that air injection into this fractured hydrothermal system could be considered as a long term natural tracer test. Nitrogen and Argon separated from the air mixture migrate, under the action of the induced injection-extraction gradient, from reinjection sectors to production zones following preferential paths closely related to high permeability conduits. A coarse numerical estimation of the average permeability tensor existing at Tejamaniles, the southern sector, explains the unsuccessful recovery of the artificial tracer tests performed in past years: the anisotropic nature of the fractured volcanic rock would demand considerably quantities of tracer in order to be detected at the producing wells, especially when fluid extraction was low. At the same time concentrations of calcium, cesium, chloride, potassium, rubidium and sodium, are increasing in the liquid produced by the oldest wells of this field's sector.

Mario Cesar Sudrez Arriaga; Hector Gutierrez Puente, Josefina Moreno Ochoa

1991-01-01T23:59:59.000Z

283

Products of an Artificially Induced Hydrothermal System at Yucca Mountain  

DOE Green Energy (OSTI)

Studies of mineral deposition in the recent geologic past at Yucca Mountain, Nevada, address competing hypotheses of hydrothermal alteration and deposition from percolating groundwater. The secondary minerals being studied are calcite-opal deposits in fractures and lithophysal cavities of ash-flow tuffs exposed in the Exploratory Studies Facility (ESF), a 7.7-km tunnel excavated by the Yucca Mountain Site Characterization Project within Yucca Mountain. An underground field test in the ESF provided information about the minerals deposited by a short-lived artificial hydrothermal system and an opportunity for comparison of test products with the natural secondary minerals. The heating phase lasted nine months, followed by a nine-month cooling period. Natural pore fluids were the only source of water during the thermal test. Condensation and reflux of water driven away from the heater produced fluid flow in certain fractures and intersecting boreholes. The mineralogic products of the thermal test are calcite-gypsum aggregates of less than 4-micrometer crystals and amorphous silica as glassy scale less than 0.2 mm thick and as mounds of tubules with diameters less than 0.7 micrometers. The minute crystal sizes of calcite and gypsum from the field test are very different from the predominantly coarser calcite crystals (up to cm scale) in natural secondary-mineral deposits at the site. The complex micrometer-scale textures of the amorphous silica differ from the simple forms of opal spherules and coatings in the natural deposits, even though some natural spherules are as small as 1 micrometer. These differences suggest that the natural minerals, especially if they were of hydrothermal origin, may have developed coarser or simpler forms during subsequent episodes of dissolution and redeposition. The presence of gypsum among the test products and its absence from the natural secondary-mineral assemblage may indicate a higher degree of evaporation during the test than during the deposition of natural calcite-opal deposits.

S. Levy

2000-08-07T23:59:59.000Z

284

Potential benefits of geothermal electrical production from hydrothermal resources  

DOE Green Energy (OSTI)

The potential national benefits of geothermal electric energy development from the hydrothermal resources in the West are estimated for several different scenarios. The U.S. electrical economy is simulated by computer using a linear programming optimization technique. Under most of the scenarios, benefits are estimated at $2 to $4 billion over the next 50 years on a discounted present value basis. The electricity production from hydrothermal plants reaches 2 to 4 percent of the national total, which will represent 10 to 20 percent of the installed capacity in the West. Installed geothermal capacity in 1990 is estimated to be 9,000 to 17,000 Mw(e). The geothermal capacity should reach 28,000 to 65,000 Mw(e) by year 2015. The ''most likely'' scenario yields the lower values in the above ranges. Under this scenario geothermal development would save the utility industry $11 billion in capital costs (undiscounted); 32 million separative work units; 64,000 tons of U/sub 3/O/sub 8/; and 700 million barrels of oil. The most favorable scenario for geothermal energy occurs when fossil fuel prices are projected to increase at 5 percent/year. The benefits of geothermal energy then exceed $8 billion on a discounted present value basis. Supply curves were developed for hydrothermal resources based on the recent U.S. Geological Survey (USGS) resource assessment, resource characteristics, and projected power conversion technology and costs. Geothermal plants were selected by the optimizing technique to fill a need for ''light load'' plants. This infers that geothermal plants may be used in the future primarily for load-following purposes.

Bloomster, C.H.; Engel, R.L.

1976-06-01T23:59:59.000Z

285

A new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry  

E-Print Network (OSTI)

acquired a wide set of data of molecular and isotopic composition of gas sampled in several Lusi vents, in the surrounding mud volcanoes, in the closest natural gas field (Wunut), and in the hydrothermal ventsA new hydrothermal scenario for the 2006 Lusi eruption, Indonesia. Insights from gas geochemistry

Mazzini, Adriano

286

Design of novel hybrid controller for automatic generation control of hydrothermal system under open market scenario  

Science Conference Proceedings (OSTI)

This paper presents the analysis of Automatic generation control (AGC) of a two-area hydrothermal system under open market scenario by considering a novel hybrid controller which combines the principles of variable structure controller (VSC) and conventional ... Keywords: AGC, VSC, deregulated system, hybrid controller, hydrothermal system, open market system

C. Srinivasa Rao; S. Siva Nagaraju; P. Sangameswara Raju

2009-12-01T23:59:59.000Z

287

Potential impact of R and D on hydrothermal energy cost  

DOE Green Energy (OSTI)

The potentital impact of the DOE/Geothermal Technology Development programs on the cost of geothermal power has been estimated using the computer program IMGEO.300. Results indicate a potential 30 to 40% cost reduction for hydrothermal systems with a 40 to 50% cost reduction potential for binary systems. The purpose of this document is to demonstrate the use of IMGEO. The initial results are tentative because the R and D goals have not been finalized and the code has not been completely validated.

Traeger, R.K.

1988-01-01T23:59:59.000Z

288

Inferences On The Hydrothermal System Beneath The Resurgent Dome In Long  

Open Energy Info (EERE)

Inferences On The Hydrothermal System Beneath The Resurgent Dome In Long Inferences On The Hydrothermal System Beneath The Resurgent Dome In Long Valley Caldera, East-Central California, Usa, From Recent Pumping Tests And Geochemical Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Inferences On The Hydrothermal System Beneath The Resurgent Dome In Long Valley Caldera, East-Central California, Usa, From Recent Pumping Tests And Geochemical Sampling Details Activities (6) Areas (1) Regions (0) Abstract: Quaternary volcanic unrest has provided heat for episodic hydrothermal circulation in the Long Valley caldera, including the present-day hydrothermal system, which has been active over the past 40 kyr. The most recent period of crustal unrest in this region of east-central California began around 1980 and has included periods of

289

K-Ar Dates Of Hydrothermal Clays From Core Hole Vc-2B, Valles Caldera, New  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » K-Ar Dates Of Hydrothermal Clays From Core Hole Vc-2B, Valles Caldera, New Mexico And Their Relation To Alteration In A Large Hydrothermal System Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: K-Ar Dates Of Hydrothermal Clays From Core Hole Vc-2B, Valles Caldera, New Mexico And Their Relation To Alteration In A Large Hydrothermal System Details Activities (2) Areas (1) Regions (0) Abstract: Seventeen K/Ar dates were obtained on illitic clays within Valles caldera (1.13 Ma) to investigate the impact of hydrothermal alteration on Quaternary to Precambrian intracaldera and pre-caldera rocks in a large,

290

An Oxygen Isotope Study Of Hydrothermal Alteration In The Lake City  

Open Energy Info (EERE)

Isotope Study Of Hydrothermal Alteration In The Lake City Isotope Study Of Hydrothermal Alteration In The Lake City Caldera, San Juan Mountains, Colorado Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Oxygen Isotope Study Of Hydrothermal Alteration In The Lake City Caldera, San Juan Mountains, Colorado Details Activities (2) Areas (1) Regions (0) Abstract: A 23-m.y.-old, fossil meteoric-hydrothermal system in the Lake City caldera (11 _ 14 km) has been mapped out by measuring Δ 18O values of 300 rock and mineral samples. Δ 18O varies systematically throughout the caldera, reaching values as low as -2. Great topographic relief, regional tilting, and variable degrees of erosion within the caldera all combine to give us a very complete section through the hydrothermal system, from the

291

Evolution Of Hydrothermal Waters At Mount St Helens, Washington, Usa | Open  

Open Energy Info (EERE)

Evolution Of Hydrothermal Waters At Mount St Helens, Washington, Usa Evolution Of Hydrothermal Waters At Mount St Helens, Washington, Usa Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Evolution Of Hydrothermal Waters At Mount St Helens, Washington, Usa Details Activities (4) Areas (1) Regions (0) Abstract: Hydrothermal water samples at Mount St. Helens collected between 1985 and 1989 and in 1994 are used to identify water types and describe their evolution through time. Two types of low temperature hydrothermal systems are associated with the 1980 eruptions and were initiated soon after emplacement of shallow magma and pyroclastic flows. The Loowit hot spring system is located in the breach zone and is associated with the magma conduit and nearby avalanche deposits, whereas the Pumice Plain (PP)

292

Throughput Optimal Scheduling in the presence of Heavy-Tailed Traffic  

E-Print Network (OSTI)

Throughput Optimal Scheduling in the presence of Heavy-Tailed Traffic Krishna Jagannathan, Mihalis of the steady-state queue occupancies under throughput optimal scheduling in the presence of heavy of the queues receives traffic that is heavy-tailed (the "heavy queue"), and the other receives light

Tsitsiklis, John

293

The hydrothermal system in central Twin Falls County, Idaho  

DOE Green Energy (OSTI)

This report describes the results of a study to define the areal extent and thickness of the hydrothermal reservoir in Twin Falls County and to propose a generalized conceptual model of the system. Specific objectives of the study, done in cooperation with the Idaho Department of Water Resources, were to evaluate the existing resource as to its volume, temperature, pressure, and water chemistry, and to determine the effects of present development on the resource. The study was limited to Twin Falls County. Some geologic, geochemical, and hydrologic data for the hydrothermal system were available from earlier studies. However, information about the subsurface at depths greater than 1000 feet was sparse. One well for which data were available was drilled to 2525 feet; several others were drilled to depths between 1200 and 2200 feet. Direct-current electrical resistivity soundings conducted during the summer of 1985 as part of the study provided valuable information about the subsurface at depths less than about 6000 feet. Interpretation of computer-generated subsurface profiles constructed from the soundings provided the basis for determining the thickness of the Idavada Volcanics over much of the study area. 42 refs., 9 figs., 3 tabs.

Lewis, R.E.; Young, H.W.

1989-01-01T23:59:59.000Z

294

Testing geochemical modeling codes using New Zealand hydrothermal systems  

DOE Green Energy (OSTI)

Hydrothermal systems in the Taupo Volcanic Zone, North Island, New Zealand are being used as field-based modeling exercises for the EQ3/6 geochemical modeling code package. Comparisons of the observed state and evolution of selected portions of the hydrothermal systems with predictions of fluid-solid equilibria made using geochemical modeling codes will: (1) ensure that we are providing adequately for all significant processes occurring in natural systems; (2) determine the adequacy of the mathematical descriptions of the processes; (3) check the adequacy and completeness of thermodynamic data as a function of temperature for solids, aqueous species and gases; and (4) determine the sensitivity of model results to the manner in which the problem is conceptualized by the user and then translated into constraints in the code input. Preliminary predictions of mineral assemblages in equilibrium with fluids sampled from wells in the Wairakei geothermal field suggest that affinity-temperature diagrams must be used in conjunction with EQ6 to minimize the effect of uncertainties in thermodynamic and kinetic data on code predictions. The kinetics of silica precipitation in EQ6 will be tested using field data from silica-lined drain channels carrying hot water away from the Wairakei borefield.

Bruton, C.J.; Glassley, W.E.; Bourcier, W.L.

1993-12-01T23:59:59.000Z

295

Ultra-high-aspect-ratio nanofluidic channels for high-throughput biological applications  

E-Print Network (OSTI)

The development of micro/nanofluidics is expected to be the enabling technology for sample preparation of proteomic biosamples, which has been the bottleneck in proteomics. Most microfabricated nanofluidic channels, such ...

Mao, Pan

2009-01-01T23:59:59.000Z

296

Categorizing Biases in High-Confidence High-Throughput Protein-Protein Interaction  

E-Print Network (OSTI)

A to serotonin, followed by product and then CoA The S5/S6 loop creates one wall of a narrow canyon- release., Nilges, M., Pannu, N.S., and Read, Shales, D., Shimizu, K., and Shaw, K.J. (1997). The most frequent R

297

High throughput screen for cells with high extracellular metabolite consumption--secretion rates using microfluidic droplets  

E-Print Network (OSTI)

Metabolic engineering has contributed significantly to the improvement of strains for the industrial production of various compounds. Traditionally, enzymatic steps closely associated with the product-forming pathway have ...

Wang, Benjamin L. (Benjamin Lu chen)

2009-01-01T23:59:59.000Z

298

Bayesian Model Selection for High-dimensional High-throughput Data  

E-Print Network (OSTI)

Bayesian methods are often criticized on the grounds of subjectivity. Furthermore, misspecified priors can have a deleterious effect on Bayesian inference. Noting that model selection is effectively a test of many hypotheses, Dr. Valen E. Johnson sought to eliminate the need of prior specification by computing Bayes' factors from frequentist test statistics. In his pioneering work that was published in the year 2005, Dr. Johnson proposed using so-called local priors for computing Bayes? factors from test statistics. Dr. Johnson and Dr. Jianhua Hu used Bayes' factors for model selection in a linear model setting. In an independent work, Dr. Johnson and another colleage, David Rossell, investigated two families of non-local priors for testing the regression parameter in a linear model setting. These non-local priors enable greater separation between the theories of null and alternative hypotheses. In this dissertation, I extend model selection based on Bayes' factors and use nonlocal priors to define Bayes' factors based on test statistics. With these priors, I have been able to reduce the problem of prior specification to setting to just one scaling parameter. That scaling parameter can be easily set, for example, on the basis of frequentist operating characteristics of the corresponding Bayes' factors. Furthermore, the loss of information by basing a Bayes' factors on a test statistic is minimal. Along with Dr. Johnson and Dr. Hu, I used the Bayes' factors based on the likelihood ratio statistic to develop a method for clustering gene expression data. This method has performed well in both simulated examples and real datasets. An outline of that work is also included in this dissertation. Further, I extend the clustering model to a subclass of the decomposable graphical model class, which is more appropriate for genotype data sets, such as single-nucleotide polymorphism (SNP) data. Efficient FORTRAN programming has enabled me to apply the methodology to hundreds of nodes. For problems that produce computationally harder probability landscapes, I propose a modification of the Markov chain Monte Carlo algorithm to extract information regarding the important network structures in the data. This modified algorithm performs well in inferring complex network structures. I use this method to develop a prediction model for disease based on SNP data. My method performs well in cross-validation studies.

Joshi, Adarsh

2010-05-01T23:59:59.000Z

299

Hydrothermal research and development assessment. Task Force report: projections for direct-heat applications  

DOE Green Energy (OSTI)

Low and moderate temperature hydrothermal resources suitable for direct-heat applications have been identified in 37 states. The extent to which three resources might be used over the next 20 years were evaluated and the probable impact of Federal programs on hydrothermal resource utilization was assessed. The use types that comprise the bulk of the market were determined. Representative firms and municipalities were interviewed to determine their willingness to use hydrothermal energy, and to determine the investment decision criteria that would influence their actions. (MHR)

Not Available

1982-04-01T23:59:59.000Z

300

Comparative assessment of five potential sites for hydrothermal magma systems: geochemistry  

DOE Green Energy (OSTI)

A brief discussion is given of the geochemical objectives and questions that must be addressed in such an evaluation. A summary of the currently published literature that is pertinent in answering these questions is presented for each of the five areas: The Geysers-Clear Lake region, Long Valley, Rio Grand Rift, Roosevelt Hot Springs, and the Salton Trough. The major geochemical processes associated with proposed hydrothermal sites are categorized into three groups for presentation: geochemistry of magma and associated volcanic rocks, geochemistry of hydrothermal solutions, and geochemistry of hydrothermal alteration. (MHR)

White, A.F.

1980-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Shallow hydrothermal regime of the East Brawley and Glamis known geothermal resource areas, Salton Trough, California  

DOE Green Energy (OSTI)

Thermal gradients and thermal conductivities were obtained in real time using an in situ heat-flow technique in 15 shallow (90 to 150 m) wells drilled between Brawley and Glamis in the Imperial Valley, Southern California. The in situ measurements were supplemented by follow-up conventional temperature logs in seven of the wells and by laboratory measurements of thermal conductivity on drill cuttings. The deltaic sedimentary material comprising the upper approx. 100 m of the Salton Trough generally is poorly sorted and high in quartz resulting in quite high thermal conductivities (averaging 2.0 Wm/sup -1/ K/sup -1/ as opposed to 1.2 to 1.7 for typical alluvium). A broad heat-flow anomaly with maximum of about 200 mWm/sup -2/ (approx. 5 HFU) is centered between Glamis and East Brawley and is superimposed on a regional heat-flow high in excess of 100 mWm/sup -2/ (> 2.5 HFU). The heat-flow high corresponds with a gravity maximum and partially with a minimum in electrical resistivity, suggesting the presence of a hydrothermal system at depth in this area.

Mase, C.W.; Sass, J.H.; Brook, C.A.; Munroe, R.J.

1981-01-01T23:59:59.000Z

302

Low temperature hydrothermal destruction of organics in Hanford tank wastes  

SciTech Connect

The objective of this work is to evaluate and develop a low temperature hydrothermal process (HTP) for the destruction of organics that are present wastes temporarily stored in underground tanks at the Hanford Site. Organic compounds contribute to tank waste safety issues, such as hydrogen generation. Some organic compounds act as complexants, promoting the solubility of radioactive constituents such as {sup 90}Sr and {sup 241}Am, which is undesirable for waste pretreatment processing. HTP is thermal-chemical autogenous processing method that is typically operated between 250{degrees}C and 375{degrees}C and approximately 200 atm. Testing with simulated tank waste, containing a variety of organics has been performed. The distribution of strontium, cesium and bulk metals between the supernatant and solid phases as a function of the total organic content of the waste simulant will be presented. Test results using simulant will be compared with similar tests conducted using actual radioactive waste.

Orth, R.J.; Elmore, M.R.; Zacher, A.H.; Neuenschwander, G.G.; Schmidt, A.J.; Jones, E.O.; Hart, T.R.; Poshusta, J.C.

1994-08-01T23:59:59.000Z

303

Hydrothermal electric and direct heat. Commercialization Phase III planning  

SciTech Connect

Nine environmental concerns have been identified: airborne effluents, waterborne effluents, noise, subsidence, enhanced seismicity, water use conflicts, land use, socioeconomic impacts, and system safety and occupational health. Resolution of these issues is expected to occur at staggered intervals over the next 8 to 10 years. Of these concerns, airborne emissions and water use conflicts are judged to have a medium likelihood of having research findings adverse to commercialization. Waterborne effluents and subsidence are also judged to have a medium likelihood. The other concerns--noise, enhanced seismicity, land use, socioeconomic impacts and system safety and occupational health--are judged to have a low likelihood of adverse findings. The overall environmental research and development plan related to hydrothermal electric and direct heat includes funds to assess the adequacy of candidate control technology options. However, it does not include the resource requirements to fully develop and demonstrate commercial control hardware, process modifications, and for strategies. The conclusions, stated as probabilities, are given.

Clusen, R.C.

1978-09-01T23:59:59.000Z

304

Integration of hydrothermal energy economics related quantitative studies  

DOE Green Energy (OSTI)

An evaluation of the existing hydrothermal energy economics related quantitative studies is provided. The objective is to present the similarities and differences in methodology and assumptions, and explain the impact of these differences on the energy price estimates. A brief summary of the study categories, economic evaluation methodology, technical and economic assumptions and major outputs of the studies is presented. The relative importance and the likely effects of the most important technical and economic factors on the cost of energy are discussed. The sensitivity analysis results provided are useful in judging the credibility as well as the relative weaknesses and strengths of the various cost of energy estimation studies. The major conclusions of the evaluation and the recommendations for future research are presented.

Not Available

1982-10-01T23:59:59.000Z

305

Hydrothermal Circulation At Mount St Helens Determined By Self-Potential  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Hydrothermal Circulation At Mount St Helens Determined By Self-Potential Measurements Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Hydrothermal Circulation At Mount St Helens Determined By Self-Potential Measurements Details Activities (1) Areas (1) Regions (0) Abstract: The distribution of hydrothermal circulation within active volcanoes is of importance in identifying regions of hydrothermal alteration which may in turn control explosivity, slope stability and sector collapse. Self-potential measurements, indicative of fluid circulation, were made within the crater of Mount St. Helens in 2000 and

306

A Handheld Sampler for Collecting Organic Samples from Shallow Hydrothermal Vents  

Science Conference Proceedings (OSTI)

We describe here a new handheld sampler, specially designed to be deployed by SCUBA divers, to collect fluid samples from shallow hydrothermal vents. The new sampler utilizes a syringe-like titanium sampling bottle with regulated filling rate to ...

Shi-Jun Wu; Can-Jun Yang; Chen-Tung Arthur Chen

307

Mapping of hydrothermally altered rocks by the EO-1 Hyperion sensor, Northern Danakil Depression, Eritrea  

Science Conference Proceedings (OSTI)

An EO-1 Hyperion scene was used to identify and map hydrothermally altered rocks and a Precambrian metamorphic sequence at and around the Alid volcanic dome, at the northern Danakil Depression, Eritrea. Mapping was coupled with laboratory analyses, including ...

Ronen Gersman; Eyal Ben-Dor; Michael Beyth; Dov Avigad; Michael Abraha; Alem Kibreab

2008-07-01T23:59:59.000Z

308

A Handheld Sampler for Collecting Organic Samples from Shallow Hydrothermal Vents  

Science Conference Proceedings (OSTI)

This study describes a new handheld sampler, specially designed to be deployed by scuba divers, to collect fluid samples from shallow hydrothermal vents. The new sampler utilizes a syringe-like titanium sampling bottle with a regulated filling ...

Shi-Jun Wu; Can-Jun Yang; Chen-Tung Arthur Chen

2013-08-01T23:59:59.000Z

309

Laboratory and field-based investigations of subsurface geochemical processes in seafloor hydrothermal systems  

E-Print Network (OSTI)

This thesis presents the results of four discrete investigations into processes governing the organic and inorganic chemical composition of seafloor hydrothermal fluids in a variety of geologic settings. Though Chapters 2 ...

Reeves, Eoghan

2010-01-01T23:59:59.000Z

310

Seismic Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial  

Open Energy Info (EERE)

Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial Magma Chamber At The Southern East Pacific Rise Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Seismic Evidence For A Hydrothermal Layer Above The Solid Roof Of The Axial Magma Chamber At The Southern East Pacific Rise Details Activities (1) Areas (1) Regions (0) Abstract: A full-waveform inversion of two-ship, wide-aperture, seismic reflection data from a ridge-crest seismic line at the southern East Pacific Rise indicates that the axial magma chamber here is about 50 m thick, is embedded within a solid roof, and has a solid floor. The 50-60-m-thick roof is overlain by a 150-200-m-thick low-velocity zone that may correspond to a fracture zone that hosts the hydrothermal circulation,

311

Evaluation of the National Throughput Benefits of the Civil Tilt Rotor  

Science Conference Proceedings (OSTI)

This study examines the capacity and throughput effects of implementing the Civil Tiltrotor Aircraft on a national scale. The CTR has the unique operating characteristic of being able to take off and land like a rotorcraft (VTOL capability) but cruises ...

Johnson Jesse; Stouffer Virginia; Long Dou; Gribko Joana

2001-09-01T23:59:59.000Z

312

Throughput Optimal Scheduling in the Presence of Heavy-Tailed Traffic  

E-Print Network (OSTI)

We investigate the tail behavior of the steady-state queue occupancies under throughput optimal scheduling in the presence of heavy-tailed traffic. We consider a system consisting of two parallel queues, served by a single ...

Jagannathan, Krishna Prasanna

313

Preservation of iron(II) by carbon-rich matrices in a hydrothermal plume  

SciTech Connect

Hydrothermal venting associated with mid-ocean ridge volcanism is globally widespread. This venting is responsible for a dissolved iron flux to the ocean that is approximately equal to that associated with continental riverine runoff. For hydrothermal fluxes, it has long been assumed that most of the iron entering the oceans is precipitated in inorganic forms. However, the possibility of globally significant fluxes of iron escaping these mass precipitation events and entering open-ocean cycles is now being debated, and two recent studies suggest that dissolved organic ligands might influence the fate of hydrothermally vented metals. Here we present spectromicroscopic measurements of iron and carbon in hydrothermal plume particles at the East Pacific Rise mid-ocean ridge. We show that organic carbon-rich matrices, containing evenly dispersed iron(II)-rich materials, are pervasive in hydrothermal plume particles. The absence of discrete iron(II) particles suggests that the carbon and iron associate through sorption or complexation. We suggest that these carbon matrices stabilize iron(II) released from hydrothermal vents in the region, preventing its oxidation and/or precipitation as insoluble minerals. Our findings have implications for deep-sea biogeochemical cycling of iron, a widely recognized limiting nutrient in the oceans.

Toner, Brandy M.; Fakra, Sirine C.; Manganini, Steven J.; Santelli, Cara M.; Marcus, Matthew A.; Moffett, James W.; Rouxel, Olivier; German, Christopher R.; Edwards, Katrina J.

2008-09-20T23:59:59.000Z

314

Contact zones and hydrothermal systems as analogues to repository conditions  

SciTech Connect

Radioactive waste isolation efforts in the US are currently focused on examining basalt, tuff, salt, and crystalline rock as candidate rock types to encompass waste repositories. As analogues to near-field conditions, the distributions of radio- and trace-elements have been examined across contacts between these rocks and dikes and stocks that have intruded them. The intensive study of the Stripa quartz monzonite has also offered the opportunity to observe the distribution of uranium and its daughters in groundwater and its relationship to U associated with fracture-filling and alteration minerals. Investigations of intrusive contact zones to date have included (1) a tertiary stock into Precambrian gneiss, (2) a stock into ash flow tuff, (3) a rhyodacite dike into Columbia River basalt, and (4) a kimberlite dike into salt. With respect to temperature and pressure, these contact zones may be considered "worst-case scenario" analogues. Results indicate that there has been no appreciable migration of radioelements from the more radioactive intrusives into the less radioactive country rocks, either in response to the intrusions or in the fracture-controlled hydrological systems that developed following emplacement. In many cases, the radioelements are locked up in accessory minerals, suggesting that artificial analogues to these would make ideal waste forms. Emphasis should now shift to examination of active hydrothermal systems, studying the distribution of key elements in water, fractures, and alteration minerals under pressure and temperature conditions most similar to those expected in the near-field environment of a repository. 14 refs.

Wollenberg, H.A.; Flexser, S.

1984-10-01T23:59:59.000Z

315

F  

NLE Websites -- All DOE Office Websites (Extended Search)

o r P e e r R e v i e w Journal Name: http:mc.manuscriptcentral.comindbiotech Lignocellulose Recalcitrance Screening by Integrated High Throughput Hydrothermal Pretreatment and...

316

In Situ Hydrothermal Synthesis of LiFePO4 Studied by Synchrotron  

SciTech Connect

The development of high capacity, safe lithium battery materials requires new tools to better understand how reaction conditions affect nucleation and crystallization, particle size, morphology, and defects. We present a general approach for studying the synthesis of Li battery electrode materials in real time. The formation of LiFePO{sub 4} was investigated by time-resolved in situ synchrotron X-ray diffraction under hydrothermal conditions, and the reaction kinetics were determined by changes of the Bragg reflections. We provide the first evidence in support of a dissolution-reprecipitation process for the formation of LiFePO{sub 4}, which occurs at temperatures as low as 105 C and appears to be a three-dimensional diffusion-controlled process. Lattice parameters and their evolution were monitored in situ, as well as the formation of antisite defects and their subsequent elimination under various synthesis conditions. The ability to characterize and tailor synthesis reactions in situ is essential for rapid optimization of the synthesis procedures and, ultimately, the development of new battery electrodes.

J Chen; J Bai; H Chen; J Graetz

2011-12-31T23:59:59.000Z

317

The Hydrothermal Chemistry of Gold, Arsenic, Antimony, Mercury and Silver  

DOE Green Energy (OSTI)

A comprehensive thermodynamic database based on the Helgeson-Kirkham-Flowers (HKF) equation of state was developed for metal complexes in hydrothermal systems. Because this equation of state has been shown to accurately predict standard partial molal thermodynamic properties of aqueous species at elevated temperatures and pressures, this study provides the necessary foundation for future exploration into transport and depositional processes in polymetallic ore deposits. The HKF equation of state parameters for gold, arsenic, antimony, mercury, and silver sulfide and hydroxide complexes were derived from experimental equilibrium constants using nonlinear regression calculations. In order to ensure that the resulting parameters were internally consistent, those experiments utilizing incompatible thermodynamic data were re-speciated prior to regression. Because new experimental studies were used to revise the HKF parameters for H2S0 and HS-1, those metal complexes for which HKF parameters had been previously derived were also updated. It was found that predicted thermodynamic properties of metal complexes are consistent with linear correlations between standard partial molal thermodynamic properties. This result allowed assessment of several complexes for which experimental data necessary to perform regression calculations was limited. Oxygen fugacity-temperature diagrams were calculated to illustrate how thermodynamic data improves our understanding of depositional processes. Predicted thermodynamic properties were used to investigate metal transport in Carlin-type gold deposits. Assuming a linear relationship between temperature and pressure, metals are predicted to predominantly be transported as sulfide complexes at a total aqueous sulfur concentration of 0.05 m. Also, the presence of arsenic and antimony mineral phases in the deposits are shown to restrict mineralization within a limited range of chemical conditions. Finally, at a lesser aqueous sulfur concentration of 0.01 m, host rock sulfidation can explain the origin of arsenic and antimony minerals within the paragenetic sequence.

Bessinger, Brad; Apps, John A.

2003-03-23T23:59:59.000Z

318

Daily combined economic emission scheduling of hydrothermal systems with cascaded reservoirs using self organizing hierarchical particle swarm optimization technique  

Science Conference Proceedings (OSTI)

Daily optimum economic emission scheduling of hydrothermal systems is an important task in the operation of power systems. Many heuristic techniques such as differential evolution, and particle swarm optimization have been applied to solve this problem ... Keywords: Cascaded reservoirs, Combined economic emission scheduling (CEES), Hydrothermal systems, Self-organizing particle swarm optimization with time-varying acceleration coefficients (SOHPSO_TVAC)

K. K. Mandal; N. Chakraborty

2012-02-01T23:59:59.000Z

319

Low temperature hydrothermally synthesized nanocrystalline orthorhombic LiMnO2 cathode material for lithium-ion cells  

Science Conference Proceedings (OSTI)

Nanocrystalline orthorhombic LiMnO2 particles with an average particle size of about 35 nm in diameter were successfully synthesized by a hydrothermal process at 160-180 °C from trimanganese tetroxide (Mn3O4) prepared ... Keywords: hydrothermal process, lithium ion battery, nanocrystalline, orthorhombic LiMnO2, solvothermal process

Mengqiang Wu; Ai Chen; Rongqing Xu; Yue Li

2003-05-01T23:59:59.000Z

320

Nitrogen geochemistry as a tracer of fluid flow in a hydrothermal vent complex in the Karoo Basin, South Africa  

E-Print Network (OSTI)

Nitrogen geochemistry as a tracer of fluid flow in a hydrothermal vent complex in the Karoo Basin and hydrothermal vent complexes (HVC) in the Karoo Basin in South Africa. The HVC formed during phreatic eruptions from the lower stratigraphic units of the Karoo Basin shows that the vitrinite reflectance and d15 N

Svensen, Henrik

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Abstract--A stochastic dynamic programming hydrothermal dispatch model to simulate a bid-based market is  

E-Print Network (OSTI)

on dynamic programming that optimizes and validates the bid prices strategies for each power plant in a hydro-thermal, and simulating them as if they were a single power plant. In a hydro-thermal system as the one simulated several plants. Emphasis is given to hydro reservoir modeling and to the assessment of their market power

Catholic University of Chile (Universidad Católica de Chile)

322

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Details Activities (3) Areas (1) Regions (0) Abstract: The 87Sr/86Sr values of thermal waters and hydrothermal calcites of the Long Valley caldera geothermal system are more radiogenic than those of young intracaldera volcanic rocks. Five thermal waters display 87Sr/86Sr

323

Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot  

Open Energy Info (EERE)

Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot Springs Thermal Area, Utah Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Trace-Element Distribution In An Active Hydrothermal System, Roosevelt Hot Springs Thermal Area, Utah Details Activities (3) Areas (1) Regions (0) Abstract: Chemical interaction of thermal fluids with reservoir rock in the Roosevelt Hot Springs thermal area, Utah, has resulted in the development of characteristic trace-element dispersion patterns. Multielement analyses of surface rock samples, soil samples and drill cuttings from deep exploration wells provide a three-dimensional perspective of chemical redistribution within this structurally-controlled hot-water geothermal system. Five distinctive elemental suites of chemical enrichment are

324

A comparison of hydrothermal reservoirs of the Western United States. Topical Report 3  

DOE Green Energy (OSTI)

This report presents a portion of the results from a one-year feasibility study sponsored by the Electric Power Research Institute to assess the feasibility of constructing a 25 to 50 MWe geothermal power plant using low salinity hydrothermal fluids as the energy source. It contains the results of a comparative study of sixteen hydrothermal reservoirs in the US. The reservoirs were selected for comparison on the basis of available data, development potential, and representativeness of known hydrothermal reservoirs in the US. Six reservoir and fluid criteria were considered the most important in determining the development and power conversion potential: depth and lithology, reservoir temperature, tested flow rate per well, fluid chemistry, magnitude of the reserve and reinjection potential. These criteria were evaluated for each of the selected reservoirs.

Meidav, H. Tsvi; Sanyal, Subir

1976-12-01T23:59:59.000Z

325

Conceptual geologic model and native state model of the Roosevelt Hot Springs hydrothermal system  

DOE Green Energy (OSTI)

A conceptual geologic model of the Roosevelt Hot Springs hydrothermal system was developed by a review of the available literature. The hydrothermal system consists of a meteoric recharge area in the Mineral Mountains, fluid circulation paths to depth, a heat source, and an outflow plume. A conceptual model based on the available data can be simulated in the native state using parameters that fall within observed ranges. The model temperatures, recharge rates, and fluid travel times are sensitive to the permeability in the Mineral Mountains. The simulation results suggests the presence of a magma chamber at depth as the likely heat source. A two-dimensional study of the hydrothermal system can be used to establish boundary conditions for further study of the geothermal reservoir.

Faulder, D.D.

1991-01-01T23:59:59.000Z

326

Conceptual geologic model and native state model of the Roosevelt Hot Springs hydrothermal system  

DOE Green Energy (OSTI)

A conceptual geologic model of the Roosevelt Hot Springs hydrothermal system was developed by a review of the available literature. The hydrothermal system consists of a meteoric recharge area in the Mineral Mountains, fluid circulation paths to depth, a heat source, and an outflow plume. A conceptual model based on the available data can be simulated in the native state using parameters that fall within observed ranges. The model temperatures, recharge rates, and fluid travel times are sensitive to the permeability in the Mineral Mountains. The simulation results suggests the presence of a magma chamber at depth as the likely heat source. A two-dimensional study of the hydrothermal system can be used to establish boundary conditions for further study of the geothermal reservoir. 33 refs., 9 figs.

Faulder, D.D.

1991-01-01T23:59:59.000Z

327

Benefit-cost analysis of DOE's Current Federal Program to increase hydrothermal resource utilization. Final report  

DOE Green Energy (OSTI)

The impact of DOE's Current Federal Program on the commercialization of hydrothermal resources between 1980 and 2000 is analyzed. The hydrothermal resources of the United States and the types of DOE activities used to stimulate the development of these resources for both electric power and direct heat use are described briefly. The No Federal Program and the Current Federal Program are then described in terms of funding levels and the resultant market penetration estimates through 2000. These market penetration estimates are also compared to other geothermal utilization forecasts. The direct benefits of the Current Federal Program are next presented for electric power and direct heat use applications. An analysis of the external impacts associated with the additional hydrothermal resource development resulting from the Current Federal Program is also provided. Included are environmental effects, national security/balance-of-payments improvements, socioeconomic impacts and materials requirements. A summary of the analysis integrating the direct benefits, external impacts and DOE program costs concludes the report.

Not Available

1981-12-10T23:59:59.000Z

328

Case studies of low-to-moderate temperature hydrothermal energy development  

DOE Green Energy (OSTI)

Six development projects are examined that use low- (less than 90/sup 0/C (194/sup 0/F)) to-moderate (90 to 150/sup 0/C (194 to 302/sup 0/F)) temperature geothermal resources. These projects were selected from 22 government cost-shared projects to illustrate the many facets of hydrothermal development. The case studies describe the history of this development, its exploratory methods, and its resource definition, as well as address legal, environmental, and institutional constraints. A critique of procedures used in the development is also provided and recommendations for similar future hydrothermal projects are suggested.

Not Available

1981-10-01T23:59:59.000Z

329

Evaluation of hydrothermal resources of North Dakota. Phase I, Final technical report  

SciTech Connect

This evaluation is based on an analysis of existing data on file with the North Dakota Geological Survey (NDGS) and other state and federal agencies. The principle source of data used was the oil and gas well files maintained by the NDGS. A computer library was created containing all the necessary oil and gas well data in the North Dakota Geological Survey oil and gas well files. Stratigraphic data, bottomhole-temperature data, and chemical data are presented in map form to show the geothermal gradient, temperature, and depth of potential hydrothermal aquifers and the chemical characteristics of potential hydrothermal aquifers.

Harris, K.L.; Winczewski, L.M.; Umphrey, H.R.; Anderson, S.B.

1980-04-01T23:59:59.000Z

330

Major transitions in evolution linked to thermal gradients above hydrothermal vents  

E-Print Network (OSTI)

The emergence of the main divisions of today's life: (1) unicellular prokaryotes, (2) unicellular eukaryotes, (3) multicellular eukaryotes, and (4) metazoans, are examples of the--still unexplained--major transitions in evolution. Regarding the origin of life, I have proposed that primordial life functioned as heat engine (thermosynthesis) while thermally cycled in convecting volcanic hot springs. Here I argue for a role of thermal gradients above submarine hydrothermal vents (SHV) in several major transitions. The last decade has witnessed the emergence of phononics, a novel discipline in physics based on controlled heat transport in thermal gradients. It builds thermal analogs to electronic devices: the thermal diode, the thermal transistor, the thermal switch, the thermal amplifier, the thermal memory--the thermal computer has been proposed. Encouraged by (1) the many similarities between microtubules (MT) and carbon nanotubes, which have a very high thermal conductivity, and (2) the recent discovery of a silk protein which also has a very high thermal conductivity, I combine and extend the mentioned ideas, and propose the general conjecture that several major transitions of evolution were effected by thermal processes, with four additional partial conjectures: (1) The first organisms used heat engines during thermosynthesis in convection cells; (2) The first eukaryotic cells used MT during thermosynthesis in the thermal gradient above SHV; (3) The first metazoans used transport of water or in water during thermosynthesis above SHV under an ice-covered ocean during the Gaskiers Snowball Earth; and (4) The first mammalian brain used a thermal machinery based on thermal gradients in or across the cortex. When experimentally proven these conjectures, which are testable by the methods of synthetic biology, would significantly enhance our understanding of life.

Anthonie W. J. Muller

2012-12-03T23:59:59.000Z

331

Thermal conversion of municipal solid waste via hydrothermal carbonization: Comparison of carbonization products to products from current waste management techniques  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer Hydrothermal carbonization (HTC) is a novel thermal conversion process. Black-Right-Pointing-Pointer HTC converts wastes into value-added resources. Black-Right-Pointing-Pointer Carbonization integrates majority of carbon into solid-phase. Black-Right-Pointing-Pointer Carbonization results in a hydrochar with high energy density. Black-Right-Pointing-Pointer Using hydrochar as an energy source may be beneficial. - Abstract: Hydrothermal carbonization (HTC) is a novel thermal conversion process that may be a viable means for managing solid waste streams while minimizing greenhouse gas production and producing residual material with intrinsic value. HTC is a wet, relatively low temperature (180-350 Degree-Sign C) thermal conversion process that has been shown to convert biomass to a carbonaceous residue referred to as hydrochar. Results from batch experiments indicate HTC of representative waste materials is feasible, and results in the majority of carbon (45-75% of the initially present carbon) remaining within the hydrochar. Gas production during the batch experiments suggests that longer reaction periods may be desirable to maximize the production of energy-favorable products. If using the hydrochar for applications in which the carbon will remain stored, results suggest that the gaseous products from HTC result in fewer g CO{sub 2}-equivalent emissions than the gases associated with landfilling, composting, and incineration. When considering the use of hydrochar as a solid fuel, more energy can be derived from the hydrochar than from the gases resulting from waste degradation during landfilling and anaerobic digestion, and from incineration of food waste. Carbon emissions resulting from the use of the hydrochar as a fuel source are smaller than those associated with incineration, suggesting HTC may serve as an environmentally beneficial alternative to incineration. The type and extent of environmental benefits derived from HTC will be dependent on hydrochar use/the purpose for HTC (e.g., energy generation or carbon storage).

Lu Xiaowei; Jordan, Beth [Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208 (United States); Berge, Nicole D., E-mail: berge@cec.sc.edu [Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208 (United States)

2012-07-15T23:59:59.000Z

332

Some further investigation on maximum throughput: does network coding really help?  

Science Conference Proceedings (OSTI)

Network coding has been shown to be the solution that allows to reach the theoretical maximum throughput in a capacitated telecommunication network [1]. It has also been shown to be a very appealing and practical alternative to routing-based approaches ...

Eric Gourdin; Yuhui Wang

2012-09-01T23:59:59.000Z

333

Throughput and PER estimates harnessing link-layer measurements for indoor 802.11n WLAN  

Science Conference Proceedings (OSTI)

The research work reported in this paper investigates if a Markov chain can model the throughput and packet error rate (PER) performance of off-the-shelf IEEE 802.11n wireless LAN network interface cards (NICs). We draw together uplink -downlink information ... Keywords: 802.11n, Markov, Measurement, WLAN

Bryan Ng; Y. F. Tan; S. W. Tan; S. W. Lee

2012-01-01T23:59:59.000Z

334

Achievable throughput and service delay for imperfect cooperative retransmission MAC protocols  

Science Conference Proceedings (OSTI)

Cooperative retransmission medium access control protocols may be used in a cellular uplink setting to achieve a higher throughput than, say, slotted Aloha, while retaining the advantages of random channel access. When multiple nodes contend for channel ... Keywords: aloha, cooperative retransmission, medium access control

Steven Weber; Ananth V. Kini; Athina P. Petropulu

2008-10-01T23:59:59.000Z

335

Modeling throughput sampling size for a cloud-hosted data scheduling and optimization service  

Science Conference Proceedings (OSTI)

As big-data processing and analysis dominates the usage of the Cloud systems, the need for Cloud-hosted data scheduling and optimization services increases. One key component for such a service is to provide available bandwidth and achievable throughput ... Keywords: Distributed applications, Distributed systems, Network protocols, Optimization

Esma Yildirim, Jangyoung Kim, Tevfik Kosar

2013-09-01T23:59:59.000Z

336

A data throughput prediction and optimization service for widely distributed many-task computing  

Science Conference Proceedings (OSTI)

In this paper, we present the design and implementation of a network throughput prediction and optimization service for many-task computing in widely distributed environments. This service uses multiple parallel TCP streams to improve the end-to-end ... Keywords: Stork, many-task computing, modeling, optimization, parallel TCP streams, prediction, scheduling

Dengpan Yin; Esma Yildirim; Tevfik Kosar

2009-11-01T23:59:59.000Z

337

A Throughput Model of IEEE 802.11aa Intra-Access Category Prioritization  

Science Conference Proceedings (OSTI)

In this paper the first saturation throughput model of an IEEE 802.11 network is presented, which includes the intra-access category prioritization introduced in the recently approved IEEE 802.11aa standard. This new feature was proposed to support finer ... Keywords: Audio video streaming, IEEE 802.11aa, Intra-access category prioritization, QoS

Katarzyna Kosek-Szott

2013-07-01T23:59:59.000Z

338

Analyzing throughput of power and thermal-constraint multicore processor under NBTI effect  

Science Conference Proceedings (OSTI)

NBTI (Negative Bias Temperature Instability) which can degrade the switching speed of PMOS transistors has become a major reliability challenge. In this paper, we investigate the throughput impact of NBTI on power and thermal-constraint multicore processors ... Keywords: NBTI, multicore processor, negative bias temperature instability, process variation

Shi-Qun Zheng; Ing-Chao Lin; Yen-Han Lee

2011-05-01T23:59:59.000Z

339

Energy-efficient mechanisms for managing thread context in throughput processors  

Science Conference Proceedings (OSTI)

Modern graphics processing units (GPUs) use a large number of hardware threads to hide both function unit and memory access latency. Extreme multithreading requires a complicated thread scheduler as well as a large register file, which is expensive to ... Keywords: energy-efficiency, multi-threading, register file organization, throughput computing

Mark Gebhart; Daniel R. Johnson; David Tarjan; Stephen W. Keckler; William J. Dally; Erik Lindholm; Kevin Skadron

2011-06-01T23:59:59.000Z

340

Geochemistry and hydrothermal alteration at selected Utah hot springs. Final report: Volume 3 (revised)  

DOE Green Energy (OSTI)

Application of Na-K-Ca geothermometry to warm springs in Utah indicates several areas with sufficiently high apparent temperatures to be of interest as geothermal exploration targets. A zone of warm springs in the Bonneville Basin show Na-K-Ca temperatures from 150/sup 0/C to 233/sup 0/C. Examination of Great Salt Lake, Bonneville sediment pore water, and Jordan Valley well-water chemistry indicates that mixing a small percent of these fluids with warm spring water can cause substantial errors in Na-K-Ca temperature estimates. Other saline deposits which may influence Na-K-Ca temperature estimates are the Paradox formation in southeastern Utah, the Muddy Creek formation in southwestern Utah, the Arapien shale in central Utah, the Preuss formation in northeastern Utah, and Playa salts in much of western Utah. The Roosevelt KGRA is the most attractive target identified by Na-K-Ca geothermometry. Hydrothermal alteration, heavy metal distribution, and water chemistry provide additional characterization of the Roosevelt system. Chemistry of a cool water seep (25/sup 0/C) shows Na-K-Ca temperature of 241/sup 0/C and SiO/sub 2/ temperature of 125/sup 0/C. A Phillips well flowing from below 1500' (457m) shows Na-K-Ca temperature of 262/sup 0/C, SiO/sub 2/ temperature of 262/sup 0/C, and K of 1.5 times the surface spring value. The near surface alteration assemblage is best explained in terms of a decrease in pH of near surface fluids as sulfide oxidizes. Increasing potassium and pH with depth indicates that a K-feldspar stable zone may be intersected with deeper drilling. Geology and alteration were mapped in the Monroe KGRA. (JGB)

Parry, W.T.; Benson, N.L.; Miller, C.D.

1976-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Hydrothermal method of synthesis of rare-earth tantalates and niobates  

SciTech Connect

A hydrothermal method of synthesis of a family of rare-earth Group 5 oxides, where the Group 5 oxide is a niobate or tantalate. The rare-earth Group 5 oxides can be doped with suitable emitter ions to form nanophosphors.

Nyman, May D; Rohwer, Lauren E.S.; Martin, James E

2012-10-16T23:59:59.000Z

342

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes  

NLE Websites -- All DOE Office Websites (Extended Search)

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Despite the considerable amount of iron that enters the oceans from the continents and from hydrothermal vents at mid-ocean ridges on the seafloor, there are large regions of the global ocean where iron availability is so low that it limits life. Oceanographers have long explained this anomaly by assuming that the iron in the sea is primarily incorporated as Fe(III) into inorganic minerals that lack both the mobility to circulate over long distance and bioavailability to sea life as an essential nutrient. Now, a collaboration led by researchers from the Woods Hole Oceanographic Institution has reported that the hydrothermal plumes emerging from the vents actually contain iron in both Fe(II) and Fe(III) oxidation states associated with organic material from nearby flora and fauna. The collaboration suggests that the organic matrices prevent oxidation and precipitation of the Fe(II), perhaps increasing both its circulation through the world's oceans and its bioavailability as a deep-sea nutrient.

343

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes  

NLE Websites -- All DOE Office Websites (Extended Search)

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes Print Despite the considerable amount of iron that enters the oceans from the continents and from hydrothermal vents at mid-ocean ridges on the seafloor, there are large regions of the global ocean where iron availability is so low that it limits life. Oceanographers have long explained this anomaly by assuming that the iron in the sea is primarily incorporated as Fe(III) into inorganic minerals that lack both the mobility to circulate over long distance and bioavailability to sea life as an essential nutrient. Now, a collaboration led by researchers from the Woods Hole Oceanographic Institution has reported that the hydrothermal plumes emerging from the vents actually contain iron in both Fe(II) and Fe(III) oxidation states associated with organic material from nearby flora and fauna. The collaboration suggests that the organic matrices prevent oxidation and precipitation of the Fe(II), perhaps increasing both its circulation through the world's oceans and its bioavailability as a deep-sea nutrient.

344

Production of Advanced Biofuels via Liquefaction - Hydrothermal Liquefaction Reactor Design: April 5, 2013  

SciTech Connect

This report provides detailed reactor designs and capital costs, and operating cost estimates for the hydrothermal liquefaction reactor system, used for biomass-to-biofuels conversion, under development at Pacific Northwest National Laboratory. Five cases were developed and the costs associated with all cases ranged from $22 MM/year - $47 MM/year.

Knorr, D.; Lukas, J.; Schoen, P.

2013-11-01T23:59:59.000Z

345

HYDROTHERMAL TREATMENT OF WHEAT STRAW ON PILOT PLANT SCALE Anders Thygesena  

E-Print Network (OSTI)

solid material is one of the most important factors for production of bioethanol. Conversion for production of sugars for bio ethanol and an alkali free solid material for combustion in an incineration). After combined hydrothermal treatment and enzymatic hydrolysis the maximum sugar, yields were 30 g

346

Duration of hydrothermal activity at Steamboat Springs, Nevada, from ages of spatially associated volcanic rocks  

DOE Green Energy (OSTI)

Steamboat Springs is a presently active equivalent of epithermal gold-silver ore-forming systems. Hot-spring sinter deposits contain small amounts of gold, silver, mercury, antimony, and arsenic. Hot-spring activity probably started before extrusion of the basaltic andesite of Steamboat Springs. Old sinter from the Steamboat Springs system occurs in gravels above and below the basaltic andesite. Intense hydrothermal alteration, including almost complete replacement by hydrothermal potassium-feldspar, has affected the basaltic andesite. Three plagioclase separates of differing potassium content from fresh basaltic andesite yielded potassium-argon ages of 2.52 to 2.55 m.y. Basaltic andesite almost completely replaced by potassium-feldspar yielded an age of 1.1 m.y. The source of energy for the thermal convection system is probably a large rhyolitic magma chamber that supplied the pumice and from which the rhyolite domes were emplaced. Sanidine and obsidian from four of the rhyolite domes yielded potassium-argon ages of 1.15 to 1.52 m.y. and obsidian from one of the northeastern domes yielded apparent ages of 2.97 and 3.03 m.y. The data indicate that hydrothermal activity has occurred at Steamboat Springs, possibly intermittently, for more than 2-1/2 m.y. These data agree with other radiogenic age studies indicating 1- and 2-m.y. lifetimes for the hydrothermal systems that generate epithermal gold-silver deposits.

Silberman, M.L.; White, D.E.; Keith, T.E.C.; Dockter, R.D.

1979-01-01T23:59:59.000Z

347

Recently developed well test insrumentation for low-to-moderate temperature hydrothermal reservoirs  

DOE Green Energy (OSTI)

The engineering drawings, assembly instructions, and recommended usage for several of the instruments developed for low and moderate temperature (< 150/sup 0/C) hydrothermal well testing are presented. Included are the drawings for: a downhole pressure and temperature instrument, a multi-conductor cablehead, a line driver to be used with the downhole pressure and temperature instrument, and a fluid-level detector.

Solbau, R.; Goranson, C.B.; Benson, S.M.

1981-08-01T23:59:59.000Z

348

The First Extrasolar Planet Discovered with a New Generation High Throughput Doppler Instrument  

E-Print Network (OSTI)

We report the detection of the first extrasolar planet, ET-1 (HD 102195b), using the Exoplanet Tracker (ET), a new generation Doppler instrument. The planet orbits HD 102195, a young star with solar metallicity that may be part of the local association. The planet imparts radial velocity variability to the star with a semiamplitude of $63.4\\pm2.0$ m s$^{-1}$ and a period of 4.11 days. The planetary minimum mass ($m \\sin i$) is $0.488\\pm0.015$ $M_J$.

Jian Ge; Julian van Eyken; Suvrath Mahadevan; Curtis DeWitt; Stephen R. Kane; Roger Cohen; Andrew Vanden Heuvel; Scott W. Fleming; Pengcheng Guo; Gregory W. Henry; Donald P. Schneider; Lawrence W. Ramsey; Robert A. Wittenmyer; Michael Endl; William D. Cochran; Eric B. Ford; Eduardo L. Martin; Garik Israelian; Jeff Valenti; David Montes

2006-05-10T23:59:59.000Z

349

High Throughput Ab initio Modeling of Charge Transport for Bio-Molecular-Electronics  

E-Print Network (OSTI)

1.2.2 Bio-Assembled CNT Field Effect Transistors . . . .nanotube - peptide nucleic acid bio conjugates for molecularmetallization for conductive bio-inorganic interfaces in

Bruque, Nicolas A.

2009-01-01T23:59:59.000Z

350

Examination of mammalian microRNAs by high-throughput sequencing  

E-Print Network (OSTI)

Small non-coding RNAs play an important role in a wide range of cellular events. MicroRNAs (miRNAs) are an abundant class of small RNAs that post-transcriptionally repress expression of their target genes. Since miRNA ...

Chiang, HyoJin Rosaria

2011-01-01T23:59:59.000Z

351

Real-time statistical saliency using high throughput circuit design and its applications in psychophysical study  

E-Print Network (OSTI)

Using low level video data, features can be extracted from images to predict search time and statistical saliency in a way that models the human visual system. The statistical saliency model helps explain how visual search ...

Blau, David A

2007-01-01T23:59:59.000Z

352

High-throughput identification of compounds targeting influenza RNA-dependent RNA polymerase activity  

E-Print Network (OSTI)

Institute of Biochemical Sciences, National Taiwan University, Taipei, 106, Taiwan, Republic of China developed resistance towards current drugs, new inhibitors that prevent viral replication through differ prophylactics for controlling influenza infections. Other prophylactic and therapeutic antiviral drugs

Tsai, Ming-Daw

353

Network-based classification of recurrent endometrial cancers using high-throughput DNA methylation data  

Science Conference Proceedings (OSTI)

DNA methylation, a well-studied mechanism of epigenetic regulation, plays important roles in cancer. Increased levels of global DNA methylation is observed in primary solid tumors including endometrial carcinomas and is generally associated with silencing ... Keywords: DNA methylation, Steiner tree, cancer recurrence, classification, protein-protein interaction network, random walk

Jianhua Ruan; Md. Jamiul Jahid; Fei Gu; Chengwei Lei; Yi-Wen Huang; Ya-Ting Hsu; David G. Mutch; Chun-Liang Chen; Nameer B. Kirma; Tim H. Huang

2012-10-01T23:59:59.000Z

354

High throughput lessons from the LHC experience.Johnston.TNC2013  

NLE Websites -- All DOE Office Websites (Extended Search)

transmission is the "C" band, which is 1530 nm to 1565 nm. (The optical spectrum of human vision is about 380 nm - 700 nm, and so 1530 nm is well into the infrared.) In...

355

Polymers with hydro-responsive topography identified using high throughput AFM of an acrylate microarray  

E-Print Network (OSTI)

Atomic force microscopy has been applied to an acrylate polymer microarray to achieve a full topographic characterisation. This process discovered a small number of hydro-responsive materials created from monomers with ...

Hook, Andrew L.

356

Operations capability improvement of a molecular biology laboratory in a high throughput genome sequencing center  

E-Print Network (OSTI)

The Broad Institute is a research collaboration of MIT, Harvard University and affiliated hospitals, and the Whitehead Institute for Biomedical Research. Its scientific mission is to "(1) create tools for genomic medicine ...

Vokoun, Matthew R. (Matthew Richard)

2005-01-01T23:59:59.000Z

357

Design and fabrication of a microfluidies gradient generator system for high-throughput molecular interaction studies  

E-Print Network (OSTI)

Design and fabrication of a microfluidics system capable of generating reproducible and controlled micro-biochemical environments that can be used as a diagnostic assay and microreactor is important. Here, a simple technique ...

Chen, Guan-Jong, 1981-

2004-01-01T23:59:59.000Z

358

High-throughput Characterization of Porous Materials Using Graphics Processing Units  

E-Print Network (OSTI)

Science, Advanced Scientific Computing Research, of the U.S.the Office of Advanced Scientific Computing Research throughScience, Advanced Scientific Computing Research, of the U.S.

Kim, Jihan

2013-01-01T23:59:59.000Z

359

Treatability studies on different refinery wastewater samples using high-throughput microbial electrolysis cells (MECs)  

E-Print Network (OSTI)

for the first time. Bioelectrochemical treatability was evaluated relative to oxygen demand. MECs were-oiled refinery wastewater sample from one site (DOW1) produced the best results, with 2.1 ± 0.2 A/m2 (maximum current density), 79% chemical oxygen demand removal, and 82% headspace biological oxygen demand removal

360

Analysis of High-Throughput Sequencing and Annotation Strategies for Phage Genomes  

E-Print Network (OSTI)

Background: Bacterial viruses (phages) play a critical role in shaping microbial populations as they influence both host mortality and horizontal gene transfer. As such, they have a significant impact on local and global ...

Chisholm, Sallie (Penny)

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Data structures and compression algorithms for high-throughput sequencing technologies  

E-Print Network (OSTI)

applications ranging from genome sequencing and resequencingthe point where human genome sequencing will be a commodity.questions, from genome sequencing to transcription fac- tor

Daily, Kenny; Rigor, Paul; Christley, Scott; Xie, Xiaohui; Baldi, Pierre

2010-01-01T23:59:59.000Z

362

Encoded hydrogel microparticles for high-throughput molecular diagnostics and personalized medicine  

E-Print Network (OSTI)

The ability to accurately detect and quantify biological molecules in complex mixtures is crucial in basic research as well as in clinical settings. Advancements in genetic analysis, molecular diagnostics, and patient-tailored ...

Chapin, Stephen Clifford

2012-01-01T23:59:59.000Z

363

Characterization and High Throughput Analysis of Metal Hydrides for Hydrogen Storage  

E-Print Network (OSTI)

L. Schlapbach, Ed. , Hydrogen as a Future Energy Carrier .M.S. Dresselhaus, Int. J. Hydrogen Energy 33 (2008) 4122-Kojima, T. Haga, Int. J. Hydrogen Energy 28 9 (2003) 989-993

Barcelo, Steven James

2009-01-01T23:59:59.000Z

364

High-throughput Characterization of Porous Materials Using Graphics Processing Units  

E-Print Network (OSTI)

A.E. ; Purcell, T. Computer Graphics Forum 2007, 26(1), 80-of Porous Materials Using Graphics Processing Units Jihanof Porous Materials Using Graphics Processing Units Jihan

Kim, Jihan

2013-01-01T23:59:59.000Z

365

High-throughput, single-worm tracking and analysis in Caenorhabditis elegans  

E-Print Network (OSTI)

felt lost, he led me back on course to complete the work herein. There is so much more I would love to mention, regarding my thanks for his instruction, but there is insufficient space and I would not even know where to begin. I am forever indebted... , which later led to focused investigation of the underlying mutated genes and eventual elucidation of their function. Numerous examples come as a result of Sydney Benner’s classic work. One particularly early example is the discovery of a gene function...

Yemini, Eviatar

2013-01-08T23:59:59.000Z

366

Characterization and High Throughput Analysis of Metal Hydrides for Hydrogen Storage  

E-Print Network (OSTI)

low volume, energy efficient hydrogen storage system if fuelof Energy (DOE) for on-board hydrogen storage. However,hydrogen storage system as defined by the Department of Energy.

Barcelo, Steven James

2009-01-01T23:59:59.000Z

367

Application of phage display to high throughput antibody generation and characterisation  

E-Print Network (OSTI)

, moderate staining of spermatid tails observed#7;Present in murine spermatogenesis (Maekawa M, Suzuki-Toyota F, Toyama Y et al. Arch Histol Cytol, 1998, 61: 405). The staining patterns match those described by Nakai M, Chen L, Nowak RA. Annat Record, 2006...

Schofield, Darren J; Pope, Anthony R; Clementel, Veronica; Buckell, Jenny; Chapple, Susan D J; Clarke, Kay F; Conquer, Jennie S; Crofts, Anna M; Crowther, Sandra R E; Dyson, Michael R; Flack, Gillian; Griffin, Gareth J; Hooks, Yvette; Howat, William J; Kolb-Kokocinski, Anja; Kunze, Susan; Martin, Cecile D; Maslen, Gareth L; Mitchell, Joanne N; O'Sullivan, Maureen; Perera, Rajika L; Roake, Wendy; Shadbolt, S Paul; Vincent, Karen J; Warford, Anthony; Wlson, Wendy E; Xie, Jane; Young, Joyce L; McCafferty, John

2007-11-29T23:59:59.000Z

368

Novel CdTe Cell Fabrication Process with Potential for Low Cost and High Throughput  

DOE Green Energy (OSTI)

There are several production disadvantages inherent in the conventional SnO(2)/CdS/CdTe manufacturing processes. In this paper, we report a novel manufacturing process for fabrication of polycrystalline Cd(2)SnO(4)/Zn(2)/SnO(4)/CdS/CdTe thin-film solar cells that yielded a CdS/CdTe device with an NREL-confirmed efficiency of 14.0%.

Wu, X.; Sheldon, P.

2000-01-01T23:59:59.000Z

369

High-throughput microfluidic living cell arrays for spatiotemporal gene expression profiling  

E-Print Network (OSTI)

The cellular microenvironment is remarkably complex. In the small space near each cell, growth factors are liberated from extracellular matrix, cytokines are secreted from neighboring cells, and hormones arrive from distant ...

King, Kevin R. (Kevin Robert), 1976-

2008-01-01T23:59:59.000Z

370

A High-throughput Screening Approach Identifies Selective Regulators of Il12b Transcription  

E-Print Network (OSTI)

TLR4, in contrast to NF-kB and AP-1, whose activities aresignaling pathways, such as NF-kB and MAP kinase pathways,

Doty, Kevin Richard

2012-01-01T23:59:59.000Z

371

Lobanov & Agrafiotis 1 Combinatorial Chemistry & High-Throughput Screening., in press  

E-Print Network (OSTI)

(Typical) #12;8 User Manual Advanced Lighting Systems The Frick Chemistry Lab was planned, designed lights in un- occupied areas. Also, using the daylight sensor, the system will read the amount of light 8 Environmental and Other Systems 12 Working Spaces Environmental Health and Safety Information 20

Agrafiotis, Dimitris K.

372

Journal of Power Sources 158 (2006) 6068 High throughput evaluation of perovskite-based anode catalysts  

E-Print Network (OSTI)

.R. Narayanan, E. Vamos, H. Frank, G. Halpert, A. LaConti, J. Kosek, G.K. Surya Prakash, G.A. Olah, J. Power

Mukasyan, Alexander

373

Inch-Scale High Throughput Metrology of Graphene and Patterned Graphene Oxide  

E-Print Network (OSTI)

Strength of Monolayer Graphene Science 2008 321, 385-388. 5.Novoselov, K. S. The rise of graphene Nature 2007 6 183-191.A. Thermal properties of graphene and nanostructured carbon

Pleskot, Dennis

2013-01-01T23:59:59.000Z

374

Automated high-throughput flow-through real-time diagnostic system  

DOE Patents (OSTI)

An automated real-time flow-through system capable of processing multiple samples in an asynchronous, simultaneous, and parallel fashion for nucleic acid extraction and purification, followed by assay assembly, genetic amplification, multiplex detection, analysis, and decontamination. The system is able to hold and access an unlimited number of fluorescent reagents that may be used to screen samples for the presence of specific sequences. The apparatus works by associating extracted and purified sample with a series of reagent plugs that have been formed in a flow channel and delivered to a flow-through real-time amplification detector that has a multiplicity of optical windows, to which the sample-reagent plugs are placed in an operative position. The diagnostic apparatus includes sample multi-position valves, a master sample multi-position valve, a master reagent multi-position valve, reagent multi-position valves, and an optical amplification/detection system.

Regan, John Frederick

2012-10-30T23:59:59.000Z

375

Development and implementation of high-throughput SNP genotyping in barley  

E-Print Network (OSTI)

knowledge of the marker order than does a linear map derivedthat this does not guar- antee that the marker order in the

2009-01-01T23:59:59.000Z

376

High Throughput Ab initio Modeling of Charge Transport for Bio-Molecular-Electronics  

E-Print Network (OSTI)

the contacts. The potential energy matrix U represents the? U 0,0 ] ?1 . The self-energy matrices are calculated fromand adding the self-energy matrices ? and ? r onto the new

Bruque, Nicolas A.

2009-01-01T23:59:59.000Z

377

High Throughput Ab initio Modeling of Charge Transport for Bio-Molecular-Electronics  

E-Print Network (OSTI)

resonant tunneling diode (RTD) for electronic circuitstructure to perform as an RTD. A resonant level lies closecharacteristics of an RTD. The I-V has a peak magnitude of 4

Bruque, Nicolas A.

2009-01-01T23:59:59.000Z

378

A titer plate-based polymer microfluidic platform for high throughput nucleic acid purification  

E-Print Network (OSTI)

SPRI reactor SPRI technologies are a solid-phase capture approach, so maximizing the extraction bed. Chem. 74 (12), 2623 (2002) Society for Biomolecular Screening (SBS), Microplate Standards Development Committee, ANSI/SBS 1-2004 (SBS, Microplate Standards Development Committee, Danbury, CT, 2004) F.M. White

Lee, Jeong-Bong

379

SAFA: Semi-automated footprinting analysis software for high-throughput quantification of nucleic acid  

E-Print Network (OSTI)

inspection is frequently sufficient for a qualitative analysis, quantification of the relative propor- tions. 1979; Ackers et al. 1982; Celander and Cech 1990, 1991), the timescales for folding events (Sclavi et

Herschlag, Dan

380

High-throughput Characterization of Porous Materials Using Graphics Processing Units  

E-Print Network (OSTI)

is supported by the Office of Science of the U.S. Departmentby the Director, Office of Science, Advanced ScientificDepartment of Energy, Office of Science, Office of Basic

Kim, Jihan

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

High-throughput Evaluation of Crystallization Temperature of Pd-Cu ...  

Science Conference Proceedings (OSTI)

Temperature and Magnetic Field Dependence of Electrical Resistance in Trilayer and Fourlayer Graphene ... Tool Failure Criteria while Drilling Titanium Alloys.

382

Development of a high throughput 3D perfused liver tissue bioreactor  

E-Print Network (OSTI)

This thesis describes the development of a device designed for culturing liver tissue in a 3D perfused environment. Cells form tissue inside miniature channels of a scaffold, and the tissue is perfused with culture medium ...

Inman, Samuel Walker

2006-01-01T23:59:59.000Z

383

An ultra-high throughput mutational spectrometer for human genetic diagnostics  

E-Print Network (OSTI)

Discovering the genetic causes of common diseases may require scanning for mutations in all of the genes in a million people, a significant undertaking. Such discoveries would revolutionize biotechnology, potentially ...

Forest, Craig Richard, 1978-

2007-01-01T23:59:59.000Z

384

Supply of geothermal power from hydrothermal sources: A study of the cost of power in 20 and 40 years  

DOE Green Energy (OSTI)

This study develops estimates for the amount of hydrothermal geothermal power that could be on line in 20 and 40 years. This study was intended to represent a snapshot'' in 20 and 40 years of the hydrothermal energy available for electric power production should a market exist for this power. This does not represent the total or maximum amount of hydrothermal power, but is instead an attempt to estimate the rate at which power could be on line constrained by the exploration, development and support infrastructure available to the geothermal industry, but not constrained by the potential market for power.

Petty, S. (Petty (Susan) Consulting, Solano Beach, CA (United States)); Livesay, B.J. (Livesay Consultants, Inc., Encinitas, CA (United States)); Long, W.P. (Carlin Gold Co., Inc., Grass Valley, CA (United States)); Geyer, J. (Geyer (John) and Associates, Vancouver, WA (United States))

1992-11-01T23:59:59.000Z

385

A simple packet retransmission strategy for throughput and delay enhancement on power line communication channels  

SciTech Connect

A new, simple, and effective communication protocol is developed and evaluated for use on power line distribution networks. The protocol involves retransmission of unacknowledged packets, which are sent in either single or multiple (N) copies in accordance with estimates of communication link quality. Multiple packet copies can be code combined at the receiver, using majority voting on each bit position, to reduce packet error rates. Adaptive link quality estimates are based on the receipt or absence of positive acknowledgements. Information throughput efficiency is calculated and N optimized in terms of system variables. Performance benefits of code combining are clearly demonstrated. The algorithm was implemented and tested using a five-station intrabuilding power line communications network operating at 1.2, 2.4, 4.8 and 9.6 kbit/s data rate. Substantial throughput and delay improvement occurred on poor quality links, without degrading performance on good links.

Onunga, J.O. (Kenya Posts and Telecommunications Corp., Nairobi (Kenya)); Donaldson, R.W. (Univ. of British Columbia, Vancouver (Canada). Dept. of Electrical Engineering)

1993-07-01T23:59:59.000Z

386

Experimental and theoretical investigation of the production of HCl and some metal chlorides in magmatic/hydrothermal systems. Progress report  

DOE Green Energy (OSTI)

Hydrothermal experiments on the partitioning of HCl and copper chloride in the system silicate melt-hydrosaline liquid-aqueous vapor are described. Modelling of the aqueous phase evolution process is discussed. (MHR)

Not Available

1990-12-31T23:59:59.000Z

387

Geochemical tracers of processes affecting the formation of seafloor hydrothermal fluids and deposits in the Manus back-arc basin  

E-Print Network (OSTI)

Systematic differences in trace element compositions (rare earth element (REE), heavy metal, metalloid concentrations) of seafloor vent fluids and related deposits from hydrothermal systems in the Manus back-arc basin ...

Craddock, Paul R

2009-01-01T23:59:59.000Z

388

Biotic and abiotic interactions of deep-sea hydrothermal vent-endemic fish on the East Pacific Rise  

E-Print Network (OSTI)

A study of the ecology of fish endemic to hydrothermal vents on the East Pacific Rise was undertaken utilizing a variety of techniques, focusing on the bythitid Thermichthys hollisi. Stable isotope and gut content analyses ...

Buckman, Kate Lynn

2009-01-01T23:59:59.000Z

389

Prospecting for Hydrothermal Vents Using Moored Current and Temperature Data: Axial Volcano on the Juan de Fuca Ridge, Northeast Pacific  

Science Conference Proceedings (OSTI)

Tidal and inertial currents and profuse hydrothermal discharge at recently erupted Axial Volcano, Juan de Fuca Ridge, cause relatively large and rapid temperature (T) changes in the near-bottom water column. Measurements show short-term T ...

J. W. Lavelle; M. A. Wetzler; E. T. Baker; R. W. Embley

2001-03-01T23:59:59.000Z

390

Policies for Increasing Throughput and Decreasing Power Consumption in Bluetooth MAC  

E-Print Network (OSTI)

Bluetooth is a fast emerging standard for indoor pico-cellular wireless networks. Power is at a premium in typical Bluetooth devices like palmtops, PDAs, laptops and mobile phones. The Bluetooth standard defines various modes for reducing power consumption of the devices by reducing their transmission and reception activities. System throughput can be increased by keeping Bluetooth devices in low power mode in case of low data rates at those devices, by avoiding unnecessary polling packets. In this paper we propose policies for scheduling and switching of power modes of Bluetooth devices for increasing throughput and decreasing power consumption. All the proposed schemes, along with a policy where all the devices are always in active mode, and a policy with previous information of packet arrival times are implemented on a Bluetooth simulator for comparing their performance. Performance of the policies is compared for different traffic models and actual traffic traces. The policies are found to perform well in terms of power savings and throughput enhancement.

Indraneel Chakraborty; Abhishek Kashyap; Anupam Rastogi; Huzur Saran; Rajeev Shorey; Apurva Kumar

2000-01-01T23:59:59.000Z

391

Throughput and delay analysis for hybrid radio-frequency and free-space-optical (RF/FSO) networks  

Science Conference Proceedings (OSTI)

In this paper the per-node throughput and end-to-end delay of randomly deployed (i.e. ad-hoc) hybrid radio frequency - free space optics (RF/FSO) networks are studied. The hybrid RF/FSO network consists of an RF ad hoc network of n nodes, f(n) ... Keywords: Ad hoc networks, Delay, Free space optics, Hybrid networks, Throughput capacity

Di Wang; Alhussein A. Abouzeid

2011-05-01T23:59:59.000Z

392

Supercapacitive Properties of Hydrothermally Synthesized Co3O4 ...  

Science Conference Proceedings (OSTI)

Design of Light Weight Structure for Wind Turbine Tower by Using Nano- Materials · Development of Highly Active Titania-Based Nanoparticles for Composite ...

393

Hydrothermally Stable, Low-Temperature NOx Reduction NH3 ...  

aging. In contrast, the conventional, commercially available chabazite SCR catalyst, Cu-SSZ-13, exhibits high activity only in 200-550 °C range.

394

Oxygen Isotope Evidence For Past And Present Hydrothermal Regimes Of Long  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Oxygen Isotope Evidence For Past And Present Hydrothermal Regimes Of Long Valley Caldera, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Oxygen Isotope Evidence For Past And Present Hydrothermal Regimes Of Long Valley Caldera, California Details Activities (3) Areas (1) Regions (0) Abstract: Whole-rock oxygen isotope compositions of cores and cuttings from Long Valley exploration wells show that the Bishop Tuff has been an important reservoir for both fossil and active geothermal systems within the caldera. The deep Clay Pit-1 and Mammoth-1 wells on the resurgent dome

395

Comparative assessment of five potential sites for hydrothermal-magma systems: summary  

DOE Green Energy (OSTI)

A comparative assessment of five potential hydrothermal-magma sites for this facet of the Thermal Regimes part of the CSDP has been prepared for the DOE Office of Basic Energy Sciences. The five sites are: The Geysers-Clear Lake, CA, Long Valley, CA, Rio Grande Rift, NM, Roosevelt Hot Springs, UT, and Salton Trough, CA. This site assessment study has drawn together background information (geology, geochemistry, geophysics, and energy transport) on the five sites as a preliminary stage to site selection. Criteria for site selection are that potential sites have identifiable, or likely, hydrothermal systems and associated magma sources, and the important scientific questions can be identified and answered by deep scientific holes. Recommendations were made.

Luth, W.C.; Hardee, H.C.

1980-11-01T23:59:59.000Z

396

Using toughreact to model reactive fluid flow and geochemical transport in hydrothermal systems  

DOE Green Energy (OSTI)

The interaction between hydrothermal fluids and the rocks through which they migrate alters the earlier formed primary minerals and leads to the formation of secondary minerals, resulting in changes in the physical and chemical properties of the system. We have developed a comprehensive numerical simulator, TOUGHREACT, which considers nonisothermal multi-component chemical transport in both liquid and gas phases. A variety of subsurface thermo-physical-chemical processes is considered under a wide range of conditions of pressure, temperature, water saturation, and ionic strength. The code can be applied to problems in fundamental analysis of the hydrothermal systems and in the exploration of geothermal reservoirs including chemical evolution, mineral alteration, mineral scaling, changes of porosity and permeability, and mineral recovery from geothermal fluids.

Xu, Tianfu; Sonnenthal, Eric; Spycher, Nicolas; Pruess, Karsten

2003-07-31T23:59:59.000Z

397

Hydrothermal synthesis and electrochemical performance of NiO microspheres with different nanoscale building blocks  

SciTech Connect

NiO microspheres were successfully obtained by calcining the Ni(OH){sub 2} precursor, which were synthesized via the hydrothermal reaction of nickel chloride, glucose and ammonia. The products were characterized by TGA, XRD and SEM. The influences of glucose and reaction temperature on the morphologies of NiO samples were investigated. Moreover, the possible growth mechanism for the spherical morphology was proposed. The charge/discharge test showed that the as-prepared NiO microspheres composed of nanoparticles can serve as an ideal electrode material for supercapacitor due to the spherical hollow structure. -- Graphical Abstract: Fig. 5 is the SEM image of NiO that was prepared in the different hydrothermal reaction temperatures. It showed that reaction temperature played a crucial role for the morphology of products.

Wang Ling; Hao Yanjing; Zhao Yan [College of Chemistry, Sichuan University, Chengdu 610064 (China); Lai Qiongyu, E-mail: laiqy5@hotmail.co [College of Chemistry, Sichuan University, Chengdu 610064 (China); Xu Xiaoyun [College of Chemistry, Sichuan University, Chengdu 610064 (China)

2010-11-15T23:59:59.000Z

398

Acid-Base Behavior in Hydrothermal Processing of Wastes - Final Report  

Science Conference Proceedings (OSTI)

A major obstacle to development of hydrothermal oxidation technology has been a lack of scientific knowledge of chemistry in hydrothermal solution above 350 C, particularly acid-base behavior, and transport phenomena, which is needed to understand corrosion, metal-ion complexation, and salt precipitation and recovery. Our objective has been to provide this knowledge with in situ UV-visible spectroscopic measurements and fully molecular computer simulation. Our recent development of relatively stable organic UV-visible pH indicators for supercritical water oxidation offers the opportunity to characterize buffers and to monitor acid-base titrations. These results have important implications for understanding reaction pathways and yields for decomposition of wastes in supercritical water.

Johnston, K.; Rossky, P.

2000-12-01T23:59:59.000Z

399

Field-based tests of geochemical modeling codes using New Zealand hydrothermal systems  

DOE Green Energy (OSTI)

Hydrothermal systems in the Taupo Volcanic Zone, North Island, New Zealand are being used as field-based modeling exercises for the EQ3/6 geochemical modeling code package. Comparisons of the observed state and evolution of the hydrothermal systems with predictions of fluid-solid equilibria made using geochemical modeling codes will determine how the codes can be used to predict the chemical and mineralogical response of the environment to nuclear waste emplacement. Field-based exercises allow us to test the models on time scales unattainable in the laboratory. Preliminary predictions of mineral assemblages in equilibrium with fluids sampled from wells in the Wairakei and Kawerau geothermal field suggest that affinity-temperature diagrams must be used in conjunction with EQ6 to minimize the effect of uncertainties in thermodynamic and kinetic data on code predictions.

Bruton, C.J.; Glassley, W.E.; Bourcier, W.L.

1994-06-01T23:59:59.000Z

400

Hydrothermal pretreatment to prevent scale during liquefaction of certain solid carbonaceous materials  

DOE Patents (OSTI)

Scale formation during the liquefaction of lower ranking coals and similar carbonaceous materials is significantly reduced and/or prevented by hydrothermal pretreatment. The said pretreatment is believed to convert the scale-forming components to the corresponding carbonate prior to liquefaction. The said pretreatment is accomplished at a total pressure within the range from about 1000 to about 4400 psia. Temperature during said pretreatment will generally be within the range from about 500.degree. to about 700.degree. F.

Stone, John B. (Houston, TX); Floyd, Frank M. (Baytown, TX)

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Deep Borehole Measurements for Characterizing the Magma/Hydrothermal System at Long Valley Caldera, CA  

DOE Green Energy (OSTI)

The Magma Energy Program of the Geothermal Technology Division is scheduled to begin drilling a deep (6 km) exploration well in Long Valley Caldera, California in 1989. The drilling site is near the center of the caldera which is associated with numerous shallow (5-7 km) geophysical anomalies. This deep well will present an unparalleled opportunity to test and validate geophysical techniques for locating magma as well as a test of the theory that magma is still present at drillable depths within the central portion of the caldera. If, indeed, drilling indicates magma, the geothermal community will then be afforded the unique possibility of examining the coupling between magmatic and hydrothermal regimes in a major volcanic system. Goals of planned seismic experiments that involve the well include the investigation of local crustal structure down to depths of 10 km as well as the determination of mechanisms for local seismicity and deformation. Borehole electrical and electromagnetic surveys will increase the volume and depth of rock investigated by the well through consideration of the conductive structure of the hydrothermal and underlying regimes. Currently active processes involving magma injection will be studied through observation of changes in pore pressure and strain. Measurements of in situ stress from recovered cores and hydraulic fracture tests will be used in conjunction with uplift data to determine those models for magmatic injection and inflation that are most applicable. Finally, studies of the thermal regime will be directed toward elucidating the coupling between the magmatic source region and the more shallow hydrothermal system in the caldera fill. To achieve this will require careful logging of borehole fluid temperature and chemistry. In addition, studies of rock/fluid interactions through core and fluid samples will allow physical characterization of the transition zone between hydrothermal and magmatic regimes.

Carrrigan, Charles R.

1989-03-21T23:59:59.000Z

402

Isotope and fluid inclusion studies of geological and hydrothermal processes, northern Peru  

DOE Green Energy (OSTI)

Mineralization in the Hualgayoc district of northern Peru occurs in altered Miocene felsic intrusions and in mid-Cretaceous platform sedimentary rocks of the Goyllarisquizga, Inca, and Chulec formations. The ores occur both as stratiform and stratabound pyritiferous base-metal deposits (mantos), and as steeply dipping, sedimentary and intrusive rock-hosted base-metal veins. Igneous rocks in the district are affected by propylytic, sericitic-argillic, sericitic, potassic, and acid-sulfate alteration. K-Ar and Rb-Sr dating and geological evidence indicate multiple stages of intrusive activity and hydrothermal alteration, including close spatial emplacement of two or more separate Miocene magmatic-hydrothermal systems. K-Ar dates on sericite, hydrothermal biotite, and alunite indicate that the most important hydrothermal episodes in the district took place {approx}13.24 and 12.4 Ma. Other K-Ar dates on altered rocks in the district may reflect various amounts of resetting by the emplacement of the 9.05 {+-} 0.2 Ma Hualgayoc rhyodacite. A five-point Rb-Sr isochron for the San Miguel intrusion at Cerro Coymolache yields an age of 45 {+-} 3.4 Ma, which indicates much earlier magmatic activity in this area than recognized previously. Fluid inclusion and paragenetic studies reveal a clear temporal evolution of fluid temperature and chemistry in the San Agustin area at Hualgayoc. Gradually, ore formation shifted to precipitation of vein minerals in the brittle fractures as the mantos became less permeable and were sealed off. Vein formation continued from progressively cooler and more diluted fluids (down to {approx}150{degrees}C and 4.3 wt% NaCl equivalent) as the system waned. No evidence for phase separation is observed in the fluids until the very last paragenetic stage, which contributed no economic mineralization. 53 refs., 15 figs., 7 tabs.

MacFarlane, A.W. [Florida International Univ., Miami, FL (United States); Prol-Ledesma, R.M. [Cd. Universitaria, Coyoacan (Mexico); Conrad, M.E. [Lawrence Berkeley Lab., CA (United States)

1994-07-01T23:59:59.000Z

403

Acidization of a Direct Heat Hydrothermal Well and its Potential in Developing Additional Direct Heat Projects  

SciTech Connect

A matrix acid treatment on a limestone formation in a low temperature hydrothermal production well in South Dakota has resulted in a 40% increase in heat (BTU) available for use in space heating a hospital. The results of this experimental treatment on the Madison Limestone suggest a significant potential may exist for similar applications, particularly throughout the western United States. This paper presents the results of the acid treatment, suggests other possible areas for similar application, and analyzes the economics for successful treatments.

Dolenc, M.R.; Strawn, J. A.; Prestwich, S.M.

1981-01-01T23:59:59.000Z

404

Comparative assessment of five potential sites for hydrothermal-magma systems: energy transport  

DOE Green Energy (OSTI)

A comparative assessment of five sites is being prepared as part of a Continental Scientific Drilling Program (CSDP) review of thermal regimes for the purpose of scoping areas for future research and drilling activities. This background report: discusses the various energy transport processes likely to be encountered in a hydrothermal-magma system, reviews related literature, discusses research and field data needs, and reviews the sites from an energy transport viewpoint. At least three major zones exist in the magma-hydrothermal transport system: the magma zone, the hydrothermal zone, and the transition zone between the two. Major energy transport questions relate to the nature and existence of these zones and their evolution with time. Additional energy transport questions are concerned with the possible existence of critical state and super-critical state permeable convection in deep geothermal systems. A review of thermal transport models emphasizes the fact that present transport models and computational techniques far outweigh the scarcity and quality of deep field data.

Hardee, H.C.

1980-09-01T23:59:59.000Z

405

Highly Pipelined Asynchronous FPGAs  

E-Print Network (OSTI)

We present the design of a high-performance, highly pipelined asynchronous FPGA. We describe a very ne-grain pipelined logic block and routing interconnect architecture, and show how asynchronous logic can eciently take advantage of this large amount of pipelining. Our FPGA, which does not use a clock to sequence computations, automatically \\selfpipelines " its logic without the designer needing to be explicitly aware of all pipelining details. This property makes our FPGA ideal for throughput-intensive applications and we require minimal place and route support to achieve good performance. Benchmark circuits taken from both the asynchronous and clocked design communities yield throughputs in the neighborhood of 300-400 MHz in a TSMC 0.25m process and 500-700 MHz in a TSMC 0.18m process.

John Teifel; Rajit Manohar

2004-01-01T23:59:59.000Z

406

Template-free synthesis of CdS hollow nanospheres based on an ionic liquid assisted hydrothermal process and their application in photocatalysis  

Science Conference Proceedings (OSTI)

Polycrystalline CdS hollow nanospheres with diameter of about 130 nm have been successfully synthesized in high yield by an ionic liquid (IL) assisted template-free hydrothermal method for the first time. Both the molar ratios of Cd/S precursor in the solution and the reaction temperature play important roles in the formation of the CdS hollow nanospheres. The concentrations of capping agent hexamethylenetetramine (HMT) and polyvinylpyrrolidone (PVP) are also crucial for the morphology and size of the final product. IL was found to be a key component in the formation of CdS hollow structures, because solid spheres were obtained in the absence of IL. A subsequent growth mechanism of hollow interior by localized Ostwald ripening process has been further discussed. Such hollow structures show high photocatalytic ability in the photodegradation of methylene blue. - Graphical abstract: TEM images of typical as-prepared CdS hollow nanospheres.

Li Xinping; Gao Yanan; Yu Li [Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong 250100 (China); Zheng Liqiang, E-mail: lqzheng@sdu.edu.c [Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong 250100 (China)

2010-06-15T23:59:59.000Z

407

high  

Gasoline and Diesel Fuel Update (EIA)

0 0 Summary Our short-term outlook for a wide array of energy prices has been adjusted upward as international and domestic energy supply conditions have tightened. We think that crude oil prices are as likely as not to end the year $2 to $3 per barrel higher than our previous projections. Thus, we think that the probability of West Texas Intermediate costing an average of $30 per barrel or more at midwinter is about 50 percent. On their current track, heating oil prices are likely to be about 30 percent above year-ago levels in the fourth quarter. Prices for Q1 2001 seem more likely now to match or exceed the high level seen in Q1 2000. Tight oil markets this year and an inherent propensity for high gas utilization in incremental power supply have resulted in rising North American natural gas

408

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

of fossil fuels and carbon dioxide emission. Ethanol95 ix List of Figures Figure 1.1 Biofuels and carbon dioxideGoldemberg 2007).Carbon dioxide is the major greenhouse gas

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

409

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

578. Hsu T. 1996. Bioethanol: Production and Utilization.design and costing of bioethanol technology: a tool for9 Bioethanol

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

410

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

heat and electricity used by conversion process or exported to the grid.heat and power to the production facility with excess left to export to the power grid.

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

411

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

via traditional biomass that generates heat by combustion.biomass handing, ethanol recovery, wastewater treatment, solid waste combustion,

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

412

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

cellulosic biomass to ethanol __________________ 3 Hemicellulose hydrolysis ________________________________________ 5 Thesis objectives _______________________________________________ 6 References ____________________________________________________ 7 Chapter 2 - Literature Review _____________________________________________ 9 Bioethanol Feedstock ___________________________________________feedstock that are inexpensive and abundant(Wyman 1999). In addition, as illustrated in Figure 1.1, cellulosic

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

413

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

sugar cane or corn starch, making ethanol from cellulosicdesigned to convert corn stover to ethanol by a series of77 NREL biochemical ethanol conversion process of corn

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

414

Dilute Acid Hydrolysis of Oligomers in Hydrothermal Pretreatment Hydrolyzate into Monomers with High Yields  

E-Print Network (OSTI)

Lignocellulosic biomass offers lower price, lower chemicalby food price fluctuations. Lignocellulosic biomass such as

Tsai, Yueh-Du

2012-01-01T23:59:59.000Z

415

Tapping the earth's geothermal resources: Hydrothermal today, magma tomorrow  

DOE Green Energy (OSTI)

The paper discusses geothermal resources, what it is, where it is, and how to extract energy from it. The materials research activities at Brookhaven National Laboratory related to geothermal energy extraction are discussed. These include high-temperature, light-weight polymer cements, elastomers, biochemical waste processing techniques, and non-metallic heat exchanger tubing. The economics of geothermal energy is also discussed. (ACR)

Kukacka, L.E.

1986-12-17T23:59:59.000Z

416

high  

Gasoline and Diesel Fuel Update (EIA)

0 0 Highlights International Oil Markets Prices. We have raised our world oil price projection by about $2 per barrel for this month because of assumed greater compliance by OPEC to targeted cuts, especially for the second quarter of 2000 (Figure 1). The expected decline in world petroleum inventories continues (Figure 2), and, given the generally stiff resolve of OPEC members to maintain production cuts, any sign of a turnaround in stocks may be postponed until later this year than previously assumed (Q3 instead of Q2). Our current estimate for the average import cost this past January is now $25 per barrel, a nearly $15-per-barrel increase from January 1999. Crude oil prices are expected to remain at relatively high levels for the first half of 2000, but

417

Economics of geothermal electricity generation from hydrothermal resources  

DOE Green Energy (OSTI)

The most important factors affecting the economics of geothermal electricity production are the wellhead temperature or enthalpy, the well flow rate, and the cost of the wells. The capital cost of the powerplant is significant, but not highly sensitive to these resource characteristics. The optimum geothermal plant size will remain small, usually in the 50-100 MWe range. Therefore, the opportunities for achieving significant cost reductions through ''economies of scale'' are small. The steam and binary power cycles are closely competitive; the binary cycle appears better when the brine temperature is below 200-230/sup 0/C, and the flashed steam cycle appears better above this range. Geothermal electricity production is capital intensive; over 75 percent of the generation costs are fixed costs related to capital investment. Technological advances are needed to reduce costs from marginal geothermal resources and thus to stimulate geothermal energy development. Significant reduction in power costs would be achieved by reducing well drilling costs, stimulating well flow rates, reducing powerplant capital costs, increasing powerplant efficiency and utilization, and developing more effective exploration techniques for locating and assessing high-quality resources. (auth)

Bloomster, C.H.; Knutsen, C.A.

1976-04-23T23:59:59.000Z

418

Economics of geothermal electricity generation from hydrothermal resources  

SciTech Connect

The most important factors affecting the economics of geothermal electricity production are the wellhead temperature or enthalpy, the well flow rate, and the cost of the wells. The capital cost of the powerplant is significant, but not highly sensitive to these resource characteristics. The optimum geothermal plant size will remain small, usually in the 50-100 MWe range. Therefore, the opportunities for achieving significant cost reductions through ''economies of scale'' are small. The steam and binary power cycles are closely competitive; the binary cycle appears better when the brine temperature is below 200-230/sup 0/C, and the flashed steam cycle appears better above this range. Geothermal electricity production is capital intensive; over 75 percent of the generation costs are fixed costs related to capital investment. Technological advances are needed to reduce costs from marginal geothermal resources and thus to stimulate geothermal energy development. Significant reduction in power costs would be achieved by reducing well drilling costs, stimulating well flow rates, reducing powerplant capital costs, increasing powerplant efficiency and utilization, and developing more effective exploration techniques for locating and assessing high-quality resources. (auth)

Bloomster, C.H.; Knutsen, C.A.

1976-04-23T23:59:59.000Z

419

Reservoir Fracturing in the Geysers Hydrothermal System: Fact or Fallacy?  

DOE Green Energy (OSTI)

Proper application of proven worldwide fracture determination analyses adequately aids in the detection and enhanced exploitation of reservoir fractures in The Geysers steam field. Obsolete, superficial ideas concerning fracturing in this resource have guided various malformed judgements of the actual elusive trends. Utilizing regional/local tectonics with theoretical rack mechanics and drilling statistics, offers the most favorable method of fracture comprehension. Exploitation philosophies should favor lateral drilling trends along local tensional components and under specific profound drainage/faulting manifestations to enhance high productivities. Drill core observations demonstrate various degrees of fracture filling, brecciation, strain responses, and rock fracture properties, giving the most favorable impression of subsurface reservoir conditions. Considerably more work utilizing current fracturing principles and geologic thought is required to adequately comprehend and economically exploit this huge complex resource.

Hebein, Jeffrey J.

1986-01-21T23:59:59.000Z

420

Reactive Separations via a Hydrothermally Stable Hydrogen Selective Membrane. Final Report  

DOE Green Energy (OSTI)

In this SBIR Phase I program, we have successfully completed the fabrication of SiC-based hydrogen selective membranes suitable for use as a membrane reactor for steam-methane reforming applications. Hydrothermal stability was performed for selected membrane to demonstrate their stability for appx. 50 hours under the proposed reforming condition. In addition, several mechanistic study was conducted to elucidate the SiC membrane formation mechanism. This understanding will facilitate membrane optimization work to be proposed for the Phase II study. The reaction study was postponed to the Phase II study.

Ciora, R. J.; Liu, P. KT.

2002-10-29T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Catalytic Hydrothermal Gasification of Lignin-Rich Biorefinery Residues and Algae Final Report  

DOE Green Energy (OSTI)

This report describes the results of the work performed by PNNL using feedstock materials provided by the National Renewable Energy Laboratory, KL Energy and Lignol lignocellulosic ethanol pilot plants. Test results with algae feedstocks provided by Genifuel, which provided in-kind cost share to the project, are also included. The work conducted during this project involved developing and demonstrating on the bench-scale process technology at PNNL for catalytic hydrothermal gasification of lignin-rich biorefinery residues and algae. A technoeconomic assessment evaluated the use of the technology for energy recovery in a lignocellulosic ethanol plant.

Elliott, Douglas C.; Neuenschwander, Gary G.; Hart, Todd R.; Rotness, Leslie J.; Zacher, Alan H.; Santosa, Daniel M.; Valkenburg, Corinne; Jones, Susanne B.; Tjokro Rahardjo, Sandra A.

2009-11-03T23:59:59.000Z

422

Discernment of two opposing reports on the hydrological effects of a hydrothermal power plant  

DOE Green Energy (OSTI)

Two evaluations to determine the hydrological effects of a 50-megawatt hydrothermal power plant in the Jemez Mountains give dramatically different results. One shows little effect; the other, a large one. The treatments agree on some thermal-zone water supplies to the Jemez River but not on the expected changes in these flows. The primary areas of disagreement appear to be the total volume of water in the reservoir and the movement of this water to the point of withdrawal. The author (a nonhydrologist) has compared these reports but leaves final judgment of the accuracy of either evaluation for some erudite hydrologists, as some experimental data and model development are needed.

Williams, J.M.

1986-06-01T23:59:59.000Z

423

Comparative assessment of five potential sites for magma: hydrothermal systems - geophysics  

DOE Green Energy (OSTI)

As part of a comparative assessment for the Continental Scientific Drilling Program, geophysical data were used, to characterize and evaluate potential magma-hydrothermal targets at five drill sites in the western United States. The sites include Roosevelt Hot Springs, Utah, the Rio Grande Rift, New Mexico, and The Geysers-Clear Lake, Long Valley, and Salton Trough areas, California. This summary discusses the size, depth, temperature, and setting of each potential target, as well as relvant scientific questions about their natures and the certainty of their existence.

Kasameyer, P.

1980-09-02T23:59:59.000Z

424

Review and Assessment of Commercial Vendors/Options for Feeding and Pumping Biomass Slurries for Hydrothermal Liquefaction  

Science Conference Proceedings (OSTI)

The National Advanced Biofuels Consortium is working to develop improved methods for producing high-value hydrocarbon fuels. The development of one such method, the hydrothermal liquefaction (HTL) process, is being led by the Pacific Northwest National Laboratory (PNNL). The HTL process uses a wet biomass slurry at elevated temperatures (i.e., 300 to 360°C [570 to 680°F]) and pressures above the vapor pressure of water (i.e., 15 to 20 MPa [2200 to 3000 psi] at these temperatures) to facilitate a condensed-phase reaction medium. The process has been successfully tested at bench-scale and development and testing at a larger scale is required to prove the viability of the process at production levels. Near-term development plans include a pilot-scale system on the order of 0.5 to 40 gpm, followed by a larger production-scale system on the order of 2000 dry metric tons per day (DMTPD). A significant challenge to the scale-up of the HTL process is feeding a highly viscous fibrous biomass wood/corn stover feedstock into a pump system that provides the required 3000 psi of pressure for downstream processing. In October 2011, PNNL began investigating commercial feed and pumping options that would meet these HTL process requirements. Initial efforts focused on generating a HTL feed and pump specification and then providing the specification to prospective vendors to determine the suitability of their pumps for the pilot-scale and production-scale plants. Six vendors were identified that could provide viable equipment to meet HTL feed and/or pump needs. Those six vendors provided options consisting three types of positive displacement pumps (i.e., diaphragm, piston, and lobe pumps). Vendors provided capabilities and equipment related to HTL application. This information was collected, assessed, and summarized and is provided as appendices to this report.

Berglin, Eric J.; Enderlin, Carl W.; Schmidt, Andrew J.

2012-11-01T23:59:59.000Z

425

Hydrothermal alteration at Roosevelt Hot Springs KGRA: DDH 1976-1  

DOE Green Energy (OSTI)

Hot waters of the Roosevelt Thermal Area, Utah, have altered granitic rocks and detritus of the Mineral Range pluton, Utah. Alteration and mineral deposition recognized in a 200' drill core from DDH 1-76 is most intense in the upper 100 feet which consists of altered alluvium and opal deposits; the lower 100 feet is weakly altered quartz monzonite. Petrographic, x-ray, and chemical methods were used to characterize systematic changes in chemistry and mineralogy. Comparison of the alteration mineral assemblages with known water chemistry and equilibrium activity diagrams suggests that a simple solution equilibrium model cannot account for the alteration. A model is proposed in which upward moving thermal water supersaturated with respect to quartz and a downward moving cool water undersaturated with respect to quartz produces the observed alteration. An estimate of the heat flow contributions from hydrothermal alteration was made by calculating reaction enthalpies for alteration reactions at each depth. The estimated heat flow varied from .02 HFU (for 200' depth, 400,000 yr duration, and no sulfur oxidation) to 67 HFU (for 5,000' depth, 1,000 yr duration, and all sulfur oxidized from sulfide). Heat flow contributions from hydrothermal alteration are comparable with those from a cooling granitic magma.

Bryant, N.L.; Parry, W.T.

1977-09-01T23:59:59.000Z

426

Faults and gravity anomalies over the East Mesa hydrothermal-geothermal system  

DOE Green Energy (OSTI)

Detailed interpretations of gravity anomalies over geothermal systems may be extremely useful for mapping the fracture or fault systems that control the circulation of the thermal waters. This approach seems to be particularly applicable in areas like the Salton Trough where reactions between the thermal waters and the porous sediments produce authigenic-hydrothermal minerals in sufficient quantity to cause distinct gravity anomalies at the surface. A 3-D inversion of the residual Bouguer gravity anomaly over the East Mesa geothermal field was made to examine the densified volume of rock. We show that the data not only resolve a north-south and an intersecting northwest structure, but that it may be possible to distinguish between the active present-day hydrothermal system and an older and cooler part of the system. The densified region is compared spatially to self-potential, thermal and seismic results and we find a good concordance between the different geophysical data sets. Our results agree with previous studies that have indicated that the main feeder fault recharging the East Mesa reservoir dips steeply to the west.

Goldstein, N.E.; Carle, S.

1986-05-01T23:59:59.000Z

427

Hydrothermal factors in porosity evolution and caprock formation at the Geysers steam field, California--insight from the Geysers Coring Project  

DOE Green Energy (OSTI)

The Department of Energy (DOE)/geothermal industry-sponsored Geysers Coring Project (GCP) has yielded 236.8 m of continuous core apparently spanning the transition between the uppermost Geysers steam reservoir and its caprock. Both zones in the corehole are developed in superficially similar, fractured, complexly veined and locally sericitized, Franciscan (late Mesozoic) graywacke-argillite sequences. However, whereas the reservoir rocks host two major fluid conduits (potential steam entries), the caprock is only sparingly permeable. This discrepancy appears to reflect principally vein texture and mineralogy. Two types of veins are common in the core--randomly-oriented, Franciscan metamorphic quartz-calcite veins; and high-angle, late Cenozoic veins deposited by The Geysers hydrothermal system. The older veins locally contain hydrothermal carbonate-dissolution vugs, which, although concentrated at the larger fluid conduit, are scattered throughout the core. The younger veins, commonly with intercrystalline vugs, consist dominantly of euhedral quartz, calcite, K-feldspar, wairakite, and pyrite--those in the reservoir rock also contain minor epidote and illite. The corresponding caprock veins are devoid of epidote but contain abundant, late-stage, mixed-layer illite/smecite (5-18% smectite interlayers) with minor chlorite/smectite (40-45% smectite interlayers). We suggest that clots of these two expandable clays in the caprock clog otherwise permeable veins and carbonate-dissolution networks at strategic sites to produce or enhance the seal on the underlying steam reservoir. Illite/smectite geothermometry indicates that the SB-15-D caprock clays were precipitated in the approximate temperature range 180-218 C, and those in the reservoir at about 218-238 C. These temperatures, along with occurrence of the clays on commonly etched calcite, K-feldspar, or wairakite, suggest that the clays were precipitated from mildly acidic steam condensate under conditions similar to those now prevailing.

Hulen, Jeffrey B.; Nielson, Dennis L.

1995-01-26T23:59:59.000Z

428

Routing and packet scheduling for throughput maximization in ieee 802.16 mesh networks  

E-Print Network (OSTI)

Abstract — This paper considers the problem of maximizing the system throughput in IEEE 802.16 broadband access networks with mesh topology, and the following results are presented. We first consider a simplified linear network with only uplink traffic and provide an optimal scheduling algorithm and establish an analytical result on the length of the schedule. We then consider the problem of routing and packet scheduling in general topology, and show its NPcompleteness. We also provide an ILP formulation for this problem. Based on our optimal algorithm for linear networks, we propose algorithms that find routes and schedules of packet transmissions in general mesh topologies. The performance of our proposed algorithms is analyzed using the NS-2 simulator. The results show that the suggested algorithms perform significantly better than other existing algorithms.

Fanchun Jin; Amrinder Arora; Jinho Hwang; Hyeong-ah Choi

2007-01-01T23:59:59.000Z

429

Evaluating the impact of network density, hidden nodes and capture effect for throughput guarantee in multi-hop wireless networks  

Science Conference Proceedings (OSTI)

To optimize the performance of wireless networks, one needs to consider the impact of key factors such as interference from hidden nodes, the capture effect, the network density and network conditions (saturated versus non-saturated). In this research, ... Keywords: Capture effect, Hidden nodes, Multi-hop wireless networks, Throughput guarantee

Haitao Zhao; Emiliano Garcia-Palacios; Shan Wang; Jibo Wei; Dongtang Ma

2013-01-01T23:59:59.000Z

430

Trends in High-Performance Computer Architecture  

E-Print Network (OSTI)

Trends in High-Performance Computer Architecture David J. Lilja Department of Electrical;Historical Trends and Perspective pre-WW II: Mechanical calculating machines WW II - 50's: Technology of Minnesota April 1996 #12;Performance Metrics System throughput - work per unit time rate - used by system

Minnesota, University of

431

Caldera processes and magma-hydrothermal systems continental scientific drilling program: thermal regimes, Valles caldera research, scientific and management plan  

DOE Green Energy (OSTI)

Long-range core-drilling operations and initial scientific investigations are described for four sites in the Valles caldera, New Mexico. The plan concentrates on the period 1986 to 1993 and has six primary objectives: (1) study the origin, evolution, physical/chemical dynamics of the vapor-dominated portion of the Valles geothermal system; (2) investigate the characteristics of caldera fill and mechanisms of caldera collapse and resurgence; (3) determine the physical/chemical conditions in the heat transfer zone between crystallizing plutons and the hydrothermal system; (4) study the mechanism of ore deposition in the caldera environment; (5) develop and test high-temperature drilling techniques and logging tools; and (6) evaluate the geothermal resource within a large silicic caldera. Core holes VC-2a (500 m) and VC-2b (2000 m) are planned in the Sulphur Springs area; these core holes will probe the vapor-dominated zone, the underlying hot-water-dominated zone, the boiling interface and probable ore deposition between the two zones, and the deep structure and stratigraphy along the western part of the Valles caldera fracture zone and resurgent dome. Core hole VC-3 will involve reopening existing well Baca number12 and deepening it from 3.2 km (present total depth) to 5.5 km, this core hole will penetrate the deep-crystallized silicic pluton, investigate conductive heat transfer in that zone, and study the evolution of the central resurgent dome. Core hole VC-4 is designed to penetrate deep into the presumably thick caldera fill in eastern Valles caldera and examine the relationship between caldera formation, sedimentation, tectonics, and volcanism. Core hole VC-5 is to test structure, stratigraphy, and magmatic evolution of pre-Valles caldera rocks, their relations to Valles caldera, and the influences of regional structure on volcanism and caldera formation.

Goff, F.; Nielson, D.L. (eds.)

1986-05-01T23:59:59.000Z

432

Economic and engineering studies for hydrothermal electric power plants. Final technical report, September 15, 1980-December 31, 1981  

DOE Green Energy (OSTI)

Seven pre-conceptual designs of small hydrothermal power plants are presented covering resource temperature of 341/sup 0/F, 405/sup 0/F, and 515/sup 0/F and considering both flashed steam and binary cycle approaches for each temperature. These design studies are presented in six reports. A separate abstract was prepared for each report. (MHR)

Pitts, D.R.

1981-01-01T23:59:59.000Z

433

Evaluation of hydrothermal resources of North Dakota. Phase II. Final technical report  

DOE Green Energy (OSTI)

This evaluation of the hydrothermal resources of North Dakota is based on existing data on file with the North Dakota Geological Survey (NDGS) and other state and federal agencies, and field and laboratory studies conducted. The principal sources of data used during the Phase II study were WELLFILE, the computer library of oil and gas well data developed during the Phase I study, and WATERCAT, a computer library system of water well data assembled during the Phase II study. A field survey of the shallow geothermal gradients present in selected groundwater observation holes was conducted. Laboratory determinations of the thermal conductivity of core samples is being done to facilitate heat-flow calculations on those hole-of-convenience cased.

Harris, K.L.; Howell, F.L.; Winczewski, L.M.; Wartman, B.L.; Umphrey, H.R.; Anderson, S.B.

1981-06-01T23:59:59.000Z

434

Evaluation of hydrothermal resources of North Dakota. Phase III final technical report  

DOE Green Energy (OSTI)

The hydrothermal resources of North Dakota were evaluated. This evaluation was based on existing data on file with the North Dakota Geological Survey (NDGS) and other state and federal agencies, and field and laboratory studies conducted. The principal sources of data used during the study were WELLFILE, the computer library of oil and gas well data developed during the Phase I study, and WATERCAT, a computer library system of water well data assembled during the Phase II study. A field survey of the shallow geothermal gradients present in selected groundwater observation holes was conducted. Laboratory determinations of the thermal conductivity of core samples were done to facilitate heat-flow calculations on those holes-of-convenience cased.

Harris, K.L.; Howell, F.L.; Wartman, B.L.; Anderson, S.B.

1982-08-01T23:59:59.000Z

435

Methods for sulfate removal in liquid-phase catalytic hydrothermal gasification of biomass  

Science Conference Proceedings (OSTI)

Processing of wet biomass feedstock by liquid-phase catalytic hydrothermal gasification must address catalyst fouling and poisoning. One solution can involve heating the wet biomass with a heating unit to a pre-treatment temperature sufficient for organic constituents in the feedstock to decompose, for precipitates of inorganic wastes to form, for preheating the wet feedstock in preparation for subsequent removal of soluble sulfate contaminants, or combinations thereof. Processing further includes reacting the soluble sulfate contaminants with cations present in the feedstock material to yield a sulfate-containing precipitate and separating the inorganic precipitates and/or the sulfate-containing precipitates out of the wet feedstock. Having removed much of the inorganic wastes and the sulfate contaminants that can cause poisoning and fouling, the wet biomass feedstock can be exposed to the heterogenous catalyst for gasification.

Elliott, Douglas C; Oyler, James

2013-12-17T23:59:59.000Z

436

Possible evidence for fluid-rock oxygen isotope disequilibrium in hydrothermal systems  

DOE Green Energy (OSTI)

There is ample evidence from geothermal systems that isotope temperatures estimated from the oxygen isotope fractionation between alteration phases and coexisting aquifer fluids agree closely with measured bore-hole temperatures. Similar, but limited evidence is found in epithermal vein deposits where isotopes temperature agree well with fluid inclusion homogenization temperature. Conversely, many hydrothermal systems exhibit varying degrees of fluid-rock oxygen isotope equilibration. There appears to be a crude relationship between increasing degree of equilibrium and increasing temperature and salinity. The observed variations in the degree of exchange may have resulted from local, self-sealing of the fracture network prior to equilibration. The ability for fracture to remain open or to propogate allowing continued fluid flow may be the deciding factor in the attainment of isotopic equilibration.

Cole, D.R.

1992-01-01T23:59:59.000Z

437

Possible evidence for fluid-rock oxygen isotope disequilibrium in hydrothermal systems  

DOE Green Energy (OSTI)

There is ample evidence from geothermal systems that isotope temperatures estimated from the oxygen isotope fractionation between alteration phases and coexisting aquifer fluids agree closely with measured bore-hole temperatures. Similar, but limited evidence is found in epithermal vein deposits where isotopes temperature agree well with fluid inclusion homogenization temperature. Conversely, many hydrothermal systems exhibit varying degrees of fluid-rock oxygen isotope equilibration. There appears to be a crude relationship between increasing degree of equilibrium and increasing temperature and salinity. The observed variations in the degree of exchange may have resulted from local, self-sealing of the fracture network prior to equilibration. The ability for fracture to remain open or to propogate allowing continued fluid flow may be the deciding factor in the attainment of isotopic equilibration.

Cole, D.R.

1992-04-01T23:59:59.000Z

438

Differences on the conversion of celestite in solutions bearing monovalent ions under hydrothermal conditions  

SciTech Connect

The replacement of SO{sub 4} {sup 2-} ions by monovalent ions in mineral SrSO{sub 4} crystals was investigated under hydrothermal conditions by using aqueous solutions bearing F{sup -} and OH{sup -} ions. Experiments were conducted at various temperatures (150-250 {sup o}C) for different reaction intervals (1-96 h), with M {sup -}/SO{sub 4} {sup 2-} molar ratios of 1, 5 and 10, where M {sup -}=F{sup -} or OH{sup -}. The celestite crystals were completely converted into SrF{sub 2} crystals, at 200 {sup o}C using a F{sup -}/SO{sub 4} {sup 2-} molar ratio=5 for 24 h. The morphology of the converted SrF{sub 2} crystals indicated that the heteroionic conversion proceeded by a pseudomorphic replacement process, because the transformed crystals maintained their original shape and dimensions. In contrast, the SrSO{sub 4} crystals were instantaneously converted into the Sr(OH){sub 2} phase by a bulk dissolution-recrystallization mechanism, resulting in the formation of large transparent acicular Sr(OH){sub 2} crystals. The differences on the conversion process are mainly associated with the chemical interaction between the mineral crystal and the hydrothermal fluid. In addition, the chemical stability of the converted phase with low solubility is also essential for the heteroionic conversion to proceed by the pseudomorphic replacement process. - Graphical abstract: Typical SEM image of the reaction interface determined on partially converted SrSO{sub 4} crystals obtained at 250 {sup o}C after 6 h in a NaF solution with a F{sup -}/SO{sub 4} {sup 2-} molar ratio=10.

Rendon-Angeles, J.C. [Research Center for Advanced Studies of the NPI, Saltillo-Campus, Ramos Arizpe, 25900, Coah. (Mexico)]. E-mail: jcarlos.rendon@cinvestav.edu.mx; Pech-Canul, M.I. [Research Center for Advanced Studies of the NPI, Saltillo-Campus, Ramos Arizpe, 25900, Coah. (Mexico); Lopez-Cuevas, J. [Research Center for Advanced Studies of the NPI, Saltillo-Campus, Ramos Arizpe, 25900, Coah. (Mexico); Research Center for Applied Chemistry, Saltillo, 25253, Coah. (Mexico); Matamoros-Veloza, Z. [Saltillo Institute of Technology, Department Metal-Mecanica, Saltillo, 25820, Coah. (Mexico); Yanagisawa, K. [Research Laboratory of Hydrothermal Chemistry, Kochi University, Kochi 780-8520 (Japan)

2006-12-15T23:59:59.000Z

439

Biomolecule-assisted hydrothermal synthesis of silver bismuth sulfide with nanostructures  

SciTech Connect

Silver bismuth sulfide (AgBiS{sub 2}) nanostructures were successfully prepared via a simple biomolecule-assisted hydrothermal synthesis at 200 Degree-Sign C for 12-72 h. Silver nitrate, bismuth nitrate and L-cysteine were used as starting materials. Here, the biomolecule, L-cysteine, was served as the sulfide source and a complexing agent. The products, characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), were cubic AgBiS{sub 2} nanoparticles with a diameter range of about 20-75 nm. It was found that their crystallinity and particle size increased with increasing reaction time. The energy dispersive X-ray spectroscopy (EDX) and inductively coupled plasma optical emission spectrophotometry (ICP-OES) analyses were used to confirm the stoichiometry of AgBiS{sub 2}. The optical band gap of the AgBiS{sub 2} nanoparticles, calculated from UV-vis spectra, was 3.0 eV which indicated a strong blue shift because of the quantum confinement effect. A possible formation mechanism of the AgBiS{sub 2} nanoparticles was also discussed. - Graphical abstract: The optical band gap of the as-prepared AgBiS{sub 2} nanoparticles displays a strong blue shift comparing to the 2.46 eV of bulk AgBiS{sub 2} caused by the quantum confinement effects. Highlights: Black-Right-Pointing-Pointer A simple biomolecule-assisted hydrothermal method is developed to prepare AgBiS{sub 2}. Black-Right-Pointing-Pointer L-Cysteine is served as the sulfide source and a complexing agent. Black-Right-Pointing-Pointer Increase in band gap of the AgBiS{sub 2} nanoparticles attributes to the quantum confinement effects.

Kaowphong, Sulawan, E-mail: sulawank@gmail.com [Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200 (Thailand); Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200 (Thailand)

2012-05-15T23:59:59.000Z

440

Journal of the Geological Society, London, Vol. 163, 2006, pp. 671682. Printed in Great Britain. Structure and evolution of hydrothermal vent complexes in the Karoo Basin,  

E-Print Network (OSTI)

, formed at c. 183 Ma, is characterized by the presence of voluminous basaltic intrusive complexes within the Karoo Basin, extrusive lava sequences and hydrothermal vent complexes. These last are pipe

Svensen, Henrik

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Indications of mineral zoning in a fossil hydrothermal system at the Meager Creek geothermal prospect, British Columbia, Canada, from induced polarization studies  

SciTech Connect

By measuring the induced-polarization parameters m (chargeability) and tau (time-constant) we have found evidence that the center of a presumed fossil hydrothermal system at Meager Creek, British Columbia, lies south of the main manifestation of the present-day convective hydrothermal system. What implication this finding has for development of the present-day system is unknown. However, some of the fractures formed during the development of the fossil hydrothermal system may serve as conduits for fluids of the present-day system. The analysis is limited by the lack of availability of a good subsurface distribution of core samples. Nevertheless, a surface induced-polarization survey is expected to yield information about the geometry of the fossil system. Such knowledge would have implications not only for Meager Creek but for other hydrothermal systems of Cascades volcano type. 16 refs., 15 figs., 1 tab.

Ward, S.H.; Zhao, J.X.; Groenwald, J.; Moore, J.N.

1985-05-01T23:59:59.000Z

442

A simple and efficient method for synthesizing te nanowires from CdTe nanoparticles with EDTA as shape controller under hydrothermal condition  

Science Conference Proceedings (OSTI)

We developed a simple and efficient method for synthesizing Te nanowires from CdTe nanoparticles with ethylenediaminetetraacetic acid disodium salt dehydrate (EDTA) as shape controller under hydrothermal condition. The systemcould both complete the transformation ...

Fangfang Xue; Ning Bi; Jiangong Liang; Heyou Han

2012-01-01T23:59:59.000Z

443

Throughput Optimal Policies for Energy Harvesting Wireless Transmitters with Non-Ideal Circuit Power  

E-Print Network (OSTI)

Characterizing the fundamental tradeoffs for maximizing energy efficiency (EE) versus spectrum efficiency (SE) is a key problem in wireless communication. In this paper, we address this problem for a point-to-point additive white Gaussian noise (AWGN) channel with the transmitter powered solely via energy harvesting from the environment. In addition, we assume a practical on-off transmitter model with non-ideal circuit power, i.e., when the transmitter is on, its consumed power is the sum of the transmit power and a constant circuit power. Under this setup, we study the optimal transmit power allocation to maximize the average throughput over a finite horizon, subject to the time-varying energy constraint and the non-ideal circuit power consumption. First, we consider the off-line optimization under the assumption that the energy arrival time and amount are a priori known at the transmitter. Although this problem is non-convex due to the non-ideal circuit power, we show an efficient optimal solution that in g...

Xu, Jie

2012-01-01T23:59:59.000Z

444

Throughput Maximization for the Gaussian Relay Channel with Energy Harvesting Constraints  

E-Print Network (OSTI)

This paper considers the use of energy harvesters, instead of conventional time-invariant energy sources, in wireless cooperative communication. For the purpose of exposition, we study the classic three-node Gaussian relay channel with decode-and-forward (DF) relaying, in which the source and relay nodes transmit with power drawn from energy-harvesting sources. Assuming a deterministic energy-harvesting model under which the energy arrival time and the harvested amount are known prior to transmission, the throughput maximization problem over a finite horizon of $N$ transmission blocks is investigated. In particular, two types of data traffic with different delay constraints are considered: delay-constrained (DC) traffic (for which only one-block decoding delay is allowed at the destination) and no-delay-constrained (NDC) traffic (for which arbitrary decoding delay up to $N$ blocks is allowed). For the DC case, we show that the joint source and relay power allocation over time is necessary to achieve the maxim...

Huang, Chuan; Cui, Shuguang

2011-01-01T23:59:59.000Z

445

Hydrothermal systems in two areas of the Jemez volcanic field: Sulphur Springs and the Cochiti mining district  

DOE Green Energy (OSTI)

K/Ar dates and oxygen isotope data were obtained on 13 clay separates (<2 ..mu..m) of thermally altered mafic and silicic rocks from the Cochiti mining district (SE Jemez Mountains) and Continental Scientific Drilling Project (CSDP) core hole VC-2A (Sulphur Springs, Valles caldera). Illite with K/sub 2/O contents of 6.68%--10.04% is the dominant clay in the silicic rocks, whereas interstratified illite/smectites containing 1.4%--5.74% K/sub 2/O constitute the altered andesites. Two hydrothermal alteration events are recognized at the Cochiti area (8.07 m.y., n = 1, and 6.5--5.6 m.y., n = 6). The older event correlates with the waning stages of Paliza Canyon Formation andesite volcanism (greater than or equal to13 to less than or equal to8.5 m.y.), whereas the younger event correlates with intrusions and gold- and silver-bearing quartz veins associated with the Bearhead Rhyolite (7.54--5.8 m.y.). The majority of K/Ar dates in the hydrothermally altered, caldera-fill rocks of core hole VC-2A (0.83--0.66 m.y., n = 4) indicate that hydrothermal alteration developed contemporaneously with resurgence and ring fracture Valles Rhyolite domes (0.89--0.54 m.y.). One date of 0 +- 0.10 m.y. in acid-altered landslide debris of postcaldera tuffs from the upper 13 m of the core hole probably correlates with Holocene hydrothermal activity possibly associated with the final phases of the Valles Rhyolite (0.13 m.y.).

WoldeGabriel, G.

1989-03-01T23:59:59.000Z

446

TEMPEST: A three-dimensional time-dependent computer program for hydrothermal analysis: Volume 2, Assessment and verification results  

Science Conference Proceedings (OSTI)

During the course of the TEMPEST computer code development a concurrent effort was conducted to assess the code's performance and the validity of computed results. The results of this work are presented in this document. The principal objective of this effort was to assure the code's computational correctness for a wide range of hydrothermal phenomena typical of fast breeder reactor application. 47 refs., 94 figs., 6 tabs.

Eyler, L.L.; Trent, D.S.; Budden, M.J.

1983-09-01T23:59:59.000Z

447

Benefit-cost analysis of DOE's Current Federal Program to increase hydrothermal resource utilization. Final report  

SciTech Connect

The impact of DOE's Current Federal Program on the commercialization of hydrothermal resources between 1980 and 2000 is analyzed. The hydrothermal resources of the United States and the types of DOE activities used to stimulate the development of these resources for both electric power and direct heat use are described briefly. The No Federal Program and the Current Federal Program are then described in terms of funding levels and the resultant market penetration estimates through 2000. These market penetration estimates are also compared to other geothermal utilization forecasts. The direct benefits of the Current Federal Program are next presented for electric power and direct heat use applications. An analysis of the external impacts associated with the additional hydrothermal resource development resulting from the Current Federal Program is also provided. Included are environmental effects, national security/balance-of-payments improvements, socioeconomic impacts and materials requirements. A summary of the analysis integrating the direct benefits, external impacts and DOE program costs concludes the report.

1981-12-10T23:59:59.000Z

448

Monodisperse spindle-like FeWO{sub 4} nanoparticles: Controlled hydrothermal synthesis and enhanced optical properties  

SciTech Connect

Monodisperse FeWO{sub 4} nanoparticles with specific spindle-like morphology have been synthesized in the presence of citric acid through hydrothermal process. In the synthesis route, citric acid played four roles such as the reducing agent, chelating regents, structure-directing agent and stabilizing agents. In addition, the morphology of FeWO{sub 4} was dramatically tuned by the pH value of the precursor medium. The optical properties of FeWO{sub 4} were investigated with UV-Vis spectra and photoluminescence spectroscopy. The photocatalytic experiments demonstrated that the decomposition efficiency of the monodisperse spindle-like FeWO{sub 4} nanoparticles is 74% after 30 min of UV irradiation, which displayed remarkable enhanced photodegradation activity compared with ordinary FeWO{sub 4} sample (57%) and normal TiO{sub 2} photocatalysts P-25 (56%). - Monodisperse spindle-like FeWO{sub 4} nanoparticles with enhanced photocatalytic activities. Highlights: Black-Right-Pointing-Pointer Monodisperse spindle-like FeWO{sub 4} were synthesized with hydrothermal method. Black-Right-Pointing-Pointer Citric acid plays key roles in the hydrothermal synthesis. Black-Right-Pointing-Pointer Their morphology can be tuned with pH value of the precursor medium. Black-Right-Pointing-Pointer They show enhanced photocatalytic activities with irradiation of UV light.

Guo, Jinxue; Zhou, Xiaoyu; Lu, Yibin [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)] [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China); Zhang, Xiao, E-mail: zhx1213@126.com [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)] [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China); Kuang, Shaoping; Hou, Wanguo [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)] [Qingdao University of Science and Technology, College of Chemistry and Molecular Engineering, No.53, Zhengzhou Road, People's Republic of China, Qingdao, Shandong 266042 (China)

2012-12-15T23:59:59.000Z

449

Recovery of solid fuel from municipal solid waste by hydrothermal treatment using subcritical water  

SciTech Connect

Highlights: Black-Right-Pointing-Pointer Hydrothermal treatment using subcritical water was studied to recover solid fuel from MSW. Black-Right-Pointing-Pointer More than 75% of carbon in MSW was recovered as char. Black-Right-Pointing-Pointer Heating value of char was comparable to that of brown coal and lignite. Black-Right-Pointing-Pointer Polyvinyl chloride was decomposed at 295 Degree-Sign C and 8 MPa and was removed by washing. - Abstract: Hydrothermal treatments using subcritical water (HTSW) such as that at 234 Degree-Sign C and 3 MPa (LT condition) and 295 Degree-Sign C and 8 MPa (HT condition) were investigated to recover solid fuel from municipal solid waste (MSW). Printing paper, dog food (DF), wooden chopsticks, and mixed plastic film and sheets of polyethylene, polypropylene, and polystyrene were prepared as model MSW components, in which polyvinylchloride (PVC) powder and sodium chloride were used to simulate Cl sources. While more than 75% of carbon in paper, DF, and wood was recovered as char under both LT and HT conditions, plastics did not degrade under either LT or HT conditions. The heating value (HV) of obtained char was 13,886-27,544 kJ/kg and was comparable to that of brown coal and lignite. Higher formation of fixed carbon and greater oxygen dissociation during HTSW were thought to improve the HV of char. Cl atoms added as PVC powder and sodium chloride to raw material remained in char after HTSW. However, most Cl originating from PVC was found to converse into soluble Cl compounds during HTSW under the HT condition and could be removed by washing. From these results, the merit of HTSW as a method of recovering solid fuel from MSW is considered to produce char with minimal carbon loss without a drying process prior to HTSW. In addition, Cl originating from PVC decomposes into soluble Cl compound under the HT condition. The combination of HTSW under the HT condition and char washing might improve the quality of char as alternative fuel.

Hwang, In-Hee, E-mail: hwang@eng.hokudai.ac.jp [Laboratory of Solid Waste Disposal Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060 8628 (Japan); Aoyama, Hiroya; Matsuto, Toshihiko; Nakagishi, Tatsuhiro; Matsuo, Takayuki [Laboratory of Solid Waste Disposal Engineering, Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060 8628 (Japan)

2012-03-15T23:59:59.000Z

450

Development of new tools and applications for high-throughput sequencing of microbiomes in environmental or clinical samples  

E-Print Network (OSTI)

Novel sequencing technologies are rapidly advancing studies of microbial community structure and diversity. Sequencing platforms like the Illumina Genome Analyzer II (GAI1) and the Applied Biosystems SOLiD enable experiments ...

Blackburn, Matthew Christopher

2010-01-01T23:59:59.000Z

451

The Logic of EGFR/ErbB Signaling: Theoretical Properties and Analysis of High-Throughput Data  

E-Print Network (OSTI)

The epidermal growth factor receptor (EGFR) signaling pathway is probably the best-studied receptor system in mammalian cells, and it also has become a popular example for employing mathematical modeling to cellular signaling ...

Sorger, Peter K.

452

Wide-scale population genomics of Atlantic bluefin tuna (Thunnus thynnus) inferred by novel high-throughput technology.  

E-Print Network (OSTI)

??My PhD project was focused on Atlantic bluefin tuna, Thunnus thynnus, a fishery resource overexploited in the last decades. For a better management of stocks,… (more)

Pintus, Eleonora and#60;1980and#62

2013-01-01T23:59:59.000Z

453

PHYSICAL REVIEW B 84, 214110 (2011) Ordered phases in ruthenium binary alloys from high-throughput first-principles calculations  

E-Print Network (OSTI)

JAHN ´ATEK et al. PHYSICAL REVIEW B 84, 214110 (2011) and Monte Carlo simulation. Using these methods. Benarchid, N. David, J. M. Fiorani, M. Vilasi, and T. Benlaharche, Thermochim. Acta 482, 39 (2009). 50 A. A¨uller, Modell. Simul. Mater. Sci. Eng. 17, 055003 (2009). 113 A. van de Walle and G. Ceder, Rev. Mod. Phys. 74

Curtarolo, Stefano

454

Abstract--Design aspects of a minimally invasive high-throughput automation system for radiation biodosimetry are  

E-Print Network (OSTI)

observed in exposed individuals following the incidents at Chernobyl [13] and Goiânia [14]. In this assay evaluation of immigrents from the vicinity of Chernobyl. International Journal of Radiation Biology, 1997. 72

455

High-Throughput Intermodal Container Terminals: Technical and Economic Analysis of a New Direct-Transfer System  

E-Print Network (OSTI)

interest in port and rail research Computer simulations have5.2.1. Microscopic-Level Research Topics Rail Technology Theor operates the rail yard. In this research, we do not make

De Castilho, Bernardo J.

1992-01-01T23:59:59.000Z

456

Methods and devices for fabricating and assembling DNA and protein arrays for high-throughput analyses [electronic resource] /  

E-Print Network (OSTI)

Y.J. , Chen, Z. et al. Genome sequencing in microfabricatedal. Accurate whole human genome sequencing using reversibleY.J. , Chen, Z. et al. Genome sequencing in microfabricated

Barbee, Kristopher David

2010-01-01T23:59:59.000Z

457

BIC-seq: a fast algorithm for detection of copy number alterations based on high-throughput sequencing data  

E-Print Network (OSTI)

DNA copy number alterations (CNA), which are amplifications and deletions of certain regions in the genome, play an important role in the pathogenesis of cancer and have been shown to be associated with other diseases such ...

Xi, Ruibin

458

Manufacturing improvement and thermal property characterization of the frame structure of an Ultra-high Throughput Mutational Spectrometer  

E-Print Network (OSTI)

Constant denaturant capillary electrophoresis (CDCE) is a DNA separation technique that allows the detection of mutants at a fraction of 10Ì???. CDCE uses a region of constant temperature and constant denaturant concentration ...

Lin, Jiengju J. (Jiengju James)

2005-01-01T23:59:59.000Z

459

High-Throughput Intermodal Container Terminals: Technical and Economic Analysis of a New Direct-Transfer System  

E-Print Network (OSTI)

storage or handling is required at the remote rail yard.remote rail yard. They include the capital costs for me handling

De Castilho, Bernardo J.

1992-01-01T23:59:59.000Z

460

Development of high through-put Sr isotope analysis for monitoring reservoir integrity for CO{sub 2} storage.  

SciTech Connect

Recent innovations in multi-collector ICP-mass spectrometry (MC-ICP-MS) have allowed for rapid and precise measurements of isotope ratios in geological samples. Naturally occurring Sr isotopes has the potential for use in Monitoring, Verification, and Accounting (MVA) associated with geologic CO2 storage. Sr isotopes can be useful for: Sensitive tracking of brine migration; Determining seal rock leakage; Studying fluid/rock reactions. We have optimized separation chemistry procedures that will allow operators to prepare samples for Sr isotope analysis off site using rapid, low cost methods.

Wall, Andy; Jain, Jinesh; Stewart, Brian; Capo, Rosemary; Hakala, Alexandra J.; Hammack, Richard; Guthrie, George

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high throughput hydrothermal" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Methods and devices for fabricating and assembling DNA and protein arrays for high-throughput analyses [electronic resource] /  

E-Print Network (OSTI)

J. Anodic corrosion of indium tin oxide films induced by thecoverslip coated with indium-tin oxide, which serves as thecoverslip coated with indium-tin oxide (ITO), which serves

Barbee, Kristopher David

2010-01-01T23:59:59.000Z

462

Development of High-Throughput and Real-Time Methods for the Detection of Infectious Enteric Viruses  

E-Print Network (OSTI)

Melvin. 2005. Quenching of CdSe quantum dot emission, a new2000. Self-assembly of CdSe-ZnS quantum dot bioconjugates2000. Self-assembly of CdSe-ZnS quantum dot bioconjugates

YEH, HSIAO-YUN

2010-01-01T23:59:59.000Z

463

A new implementation of high-throughput five-dimensional clone pooling strategy for BAC library screening  

E-Print Network (OSTI)

PP), column super-pools (CSP), and row super-pools (RSP) isa positive plate RSP, plate CSP, clone RP and clone CP forof plate RSP and plate CSP in the super pool 2-D design

You, Frank M; Luo, Ming-Cheng; Xu, Kenong; Deal, Karin R; Anderson, Olin D; Dvorak, Jan

2010-01-01T23:59:59.000Z

464

Methods and devices for fabricating and assembling DNA and protein arrays for high-throughput analyses [electronic resource] /  

E-Print Network (OSTI)

between the glass slide and top block to create leak-freebetween the glass slide and the polycarbonate block usingpolycarbonate block with fluidic ports; b) glass slide with

Barbee, Kristopher David

2010-01-01T23:59:59.000Z

465

Hydrothermal preparation, characterization and property research of flowerlike ZnO nanocrystals built up by nanoflakes  

Science Conference Proceedings (OSTI)

In the present paper, flowerlike ZnO nanocrystals were successfully synthesized via a simple hydrothermal route in the presence of sodium dodecyl sulfate (SDS), employing Zn(CH{sub 3}COO){sub 2} and KOH as the starting reactants. The phase and morphology of the product were characterized by means of powder X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and select area electron diffraction (SAED). The optical properties of the product were studied. Some factors influencing the morphology of the final product including reaction time, temperature and amounts of the surfactant were discussed. Researches showed that the flowerlike ZnO nanocrystals had a good photo-catalytic activity for degradation of safranine T under 254 nm UV light irradiation. The electrochemical research of the product showed that flowerlike ZnO nanocrystals could promote electron transfers between catechol and the Au electrode. A possible formation mechanism was also suggested based on the results of the experiments.

Ni Yonghong [College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000 (China)], E-mail: niyh@mail.ahnu.edu.cn; Wu Guogen; Zhang Xiaolei; Cao Xiaofeng; Hu Guangzhi; Tao Ali; Yang Zhousheng; Wei Xianwen [College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, Wuhu 241000 (China)

2008-11-03T23:59:59.000Z

466

Stochastic Lagrangian relaxation applied to power scheduling in a hydro-thermal system under uncertainty  

E-Print Network (OSTI)

A dynamic (multi-stage) stochastic programming model for the weekly cost-optimal generation of electric power in a hydro-thermal generation system under uncertain load is developed. The model involves a large number of mixed-integer (stochastic) decision variables and constraints linking time periods and operating power units. Astochastic Lagrangian relaxation scheme is designed by assigning (stochastic) multipliers to all constraints coupling power units. It is assumed that the stochastic load process is given (or approximated) by a nite number of realizations (scenarios) in scenario tree form. Solving the dual by a bundle subgradient method leads to a successive decomposition into stochastic single (thermal or hydro) unit subproblems. The stochastic thermal and hydro subproblems are solved by astochastic dynamic programming technique and by a speci c descent algorithm, respectively. A Lagrangian heuristics that provides approximate solutions for the rst stage (primal) decisions starting from the optimal (stochastic) multipliers is developed. Numerical results are presented for realistic data from a German power utility andfornumbers of scenarios ranging from 5 to 100 and a time horizon from 7 to 9 days. The sizes of the corresponding optimization problems go up to 200.000 binary and 350.000 continuous variables, and more than 500.000 constraints.

M. P. Nowak; W. Römisch

2000-01-01T23:59:59.000Z

467

Power management in a hydro-thermal system under uncertainty by Lagrangian relaxation  

E-Print Network (OSTI)

We present a dynamic multistage stochastic programming model for the cost-optimal generation of electric power in a hydro-thermal system under uncertainty in load, inflow to reservoirs and prices for fuel and delivery contracts. The stochastic load process is approximated by a scenario tree obtained by adapting a SARIMA model to historical data, using empirical means and variances of simulated scenarios to construct an initial tree, and reducing it by a scenario deletion procedure based on a suitable probability distance. Our model involves many mixed-integer variables and individual power unit constraints, but relatively few coupling constraints. Hence we employstochastic Lagrangian relaxation that assigns stochastic multipliers to the coupling constraints. Solving the Lagrangian dual by a proximal bundle method leads to successive decomposition into single thermal and hydro unit subproblems that are solved by dynamic programming and a specialized descent algorithm, respectively. The optimal stochastic multipliers are used in Lagrangian heuristics to construct approximately optimal first stage decisions. Numerical results are presented for realistic data from a German power utility, with a time horizon of one week and scenario numbers ranging from 5 to 100. The corresponding optimization problems have up to 200,000 binary and 350,000 continuous variables, and more than 500,000 constraints.

Nicole Gröwe-Kuska; Krzysztof C. Kiwiel; Matthias P. Nowak; Werner Römisch; Isabel Wegner

2002-01-01T23:59:59.000Z

468

Internal Technical Report, Hydrothermal Injection Program - East Mesa 1983-84 Test Data  

DOE Green Energy (OSTI)

This report presents a test data index and a data plots for a series of 12 drawdown and tracer injection-withdrawal tests in porous-media aquifers at the East Mesa Geothermal Field located in the Imperial Valley near El Centro, California. Test and instrumentation summaries are also provided. The first 10 of these tests were completed during July and August 1983. The remaining 2 tests were completed in February 1984, after a 6-month quiescent period, in which tracers were left in the reservoir. The test wells used were 56-30 and 56-19, with 38-30 supplying water for the injection phase and 52-29 used as a disposal well during the backflowing of the test wells. Six other wells in the surrounding area were measured periodically for possible hydrologic effects during testing. It is not the intent of this report to supply analyzed data, but to list the uninterpreted computer stored data available for analysis. The data have been examined only to the extent to ensure that they are reasonable and internally consistent. This data is stored on permanent files at the Idaho National Engineering Laboratory (INEL) Cyber Computer Complex. The main processors for this complex are located at the Computer Science Center (CSC) in Idaho Falls, Idaho. The Hydrothermal Injection Test program, funded by the Department of Energy, was a joint effort between EG and G Idaho, Inc., the University of Utah Research Institute (UURI) and Republic Geothermal, Inc. (RGI) of Santa Fe Springs, California.

Freiburger, R.M.

1984-09-01T23:59:59.000Z

469

Low temperature hydrothermal processing of organic contaminants in Hanford tank waste  

DOE Green Energy (OSTI)

Batch and continuous flow reactor tests at Pacific Northwest Laboratory (PNL) have shown that organics similar to those present in the single-shell and double-shell underground storage tanks at Hanford can be decomposed in the liquid phase at relatively mild temperatures of 150[degree]C to 350[degree]C in an aqueous process known as hydrothermal processing (HTP). The organics will react with the abundant oxidants such s nitrite already present in the Hanford tank waste to form hydrogen, carbon dioxide, methane, and ammonia. No air or oxygen needs to be added to the system. Ferrocyanides and free cyanide will hydrolyze at similar temperatures to produce formate and ammonia and may also react with nitrates or other oxides. During testing, the organic carbon was transformed first to oxalate at[approximately]310[degree]C and completely oxidized to carbonate at [approximately]350[degree]C accompanied by hydroxide consumption. Solids were formed at higher temperatures, causing a small-diameter outlet tube to plug. The propensity for plugging was reduced by diluting the feed with concentrated hydroxide.

Jones, E.O.; Pederson, L.R.; Freeman, H.D.; Schmidt, A.J. (Pacific Northwest Lab., Richland, WA (United States)); Babad, H. (Westinghouse Hanford Co., Richland, WA (United States))

1993-02-01T23:59:59.000Z

470

Improved computational schemes for the numerical modeling of hydrothermal resources in Wyoming  

DOE Green Energy (OSTI)

A new method, the Conjugate Gradient Squared (CGS) solution technique, is shown to be extremely effective when applied to the finite-difference solution of conductive and convective heat transfer in geologic systems. The CGS method is compared to the Successive Over/Under Relaxation schemes, a version of the Gaussian elimination method, and the Generalized Minimum Residual (GMRES) approach. The CGS procedure converges at least ten times faster than the nearest competitor. The model is applied to the Thermopolis hydrothermal system, located in northwestern Wyoming. Modeled results are compared with measured temperature-depth profiles and results from other studies. The temperature decrease from 72{degree}C to 54{degrees}C along the crest of the Thermopolis anticline is shown to result from cooling of the geothermal fluid as it moves to the southeast. Modeled results show correct general trends, however, a time-varying three-dimensional model will be needed to fully explain the effects of mixing within the aquifers along the crest of the anticline and thermal affects of surface surface topography. 29 refs., 18 figs., 2 tabs.

Heasler, H.P.; George, J.H.; Allen, M.B.

1990-05-01T23:59:59.000Z

471

Low temperature hydrothermal processing of organic contaminants in Hanford tank waste  

DOE Green Energy (OSTI)

Batch and continuous flow reactor tests at Pacific Northwest Laboratory (PNL) have shown that organics similar to those present in the single-shell and double-shell underground storage tanks at Hanford can be decomposed in the liquid phase at relatively mild temperatures of 150{degree}C to 350{degree}C in an aqueous process known as hydrothermal processing (HTP). The organics will react with the abundant oxidants such s nitrite already present in the Hanford tank waste to form hydrogen, carbon dioxide, methane, and ammonia. No air or oxygen needs to be added to the system. Ferrocyanides and free cyanide will hydrolyze at similar temperatures to produce formate and ammonia and may also react with nitrates or other oxides. During testing, the organic carbon was transformed first to oxalate at{approximately}310{degree}C and completely oxidized to carbonate at {approximately}350{degree}C accompanied by hydroxide consumption. Solids were formed at higher temperatures, causing a small-diameter outlet tube to plug. The propensity for plugging was reduced by diluting the feed with concentrated hydroxide.

Jones, E.O.; Pederson, L.R.; Freeman, H.D.; Schmidt, A.J. [Pacific Northwest Lab., Richland, WA (United States); Babad, H. [Westinghouse Hanford Co., Richland, WA (United States)

1993-02-01T23:59:59.000Z

472

HIGHLY AUTOMATED MACROMOLECULAR  

NLE Websites -- All DOE Office Websites (Extended Search)

AUTOMATED MACROMOLECULAR AUTOMATED MACROMOLECULAR CRYSTALLOGRAPHY BEAMLINE (AMX) Group Leader: Dieter Schneider Proposal Team: M. Allaire 1 , L. Berman 1 , M. Chance 2 , W. Hendrickson 3 , A. Héroux 1 , J. Jakoncic 1 , A. Orville 1 , H. Robinson 1 , D. Schneider 1 , W. Shi 2 , A. Soares 1 , V. Stojanoff 1 , R. Sweet 1 1 Brookhaven National Laboratory, 2 Case Western Reserve University, 3 Columbia University MISSION APPLICATIONS AND CAPABILITIES ADDITIONAL INFORMATION * AMX at NSLS-II will provide structural biologists with ready access to an advanced macromolecular crystallography (MX) beamline for the elucidation of structure and function of macromolecular complexes. * Its high flux, tunable energy, and natively small focal spot will make it a crystallographer's preferred beamline. * Its high degree of automation will provide a high throughput

473

Transportability Class of Americium in K Basin Sludge under Ambient and Hydrothermal Processing Conditions  

SciTech Connect

This report establishes the technical bases for using a ''slow uptake'' instead of a ''moderate uptake'' transportability class for americium-241 (241Am) for the K Basin Sludge Treatment Project (STP) dose consequence analysis. Slow uptake classes are used for most uranium and plutonium oxides. A moderate uptake class has been used in prior STP analyses for 241Am based on the properties of separated 241Am and its associated oxide. However, when 241Am exists as an ingrown progeny (and as a small mass fraction) within plutonium mixtures, it is appropriate to assign transportability factors of the predominant plutonium mixtures (typically slow) to the Am241. It is argued that the transportability factor for 241Am in sludge likewise should be slow because it exists as a small mass fraction as the ingrown progeny within the uranium oxide in sludge. In this report, the transportability class assignment for 241Am is underpinned with radiochemical characterization data on K Basin sludge and with studies conducted with other irradiated fuel exposed to elevated temperatures and conditions similar to the STP. Key findings and conclusions from evaluation of the characterization data and published literature are summarized here. Plutonium and 241Am make up very small fractions of the uranium within the K Basin sludge matrix. Plutonium is present at about 1 atom per 500 atoms of uranium and 241Am at about 1 atom per 19000 of uranium. Plutonium and americium are found to remain with uranium in the solid phase in all of the {approx}60 samples taken and analyzed from various sources of K Basin sludge. The uranium-specific concentrations of plutonium and americium also remain approximately constant over a uranium concentration range (in the dry sludge solids) from 0.2 to 94 wt%, a factor of {approx}460. This invariability demonstrates that 241Am does not partition from the uranium or plutonium fraction for any characterized sludge matrix. Most of the K Basin sludge characterization data is derived spent nuclear fuel corroded within the K Basins at 10-15?C. The STP process will place water-laden sludges from the K Basin in process vessels at {approx}150-180 C. Therefore, published studies with other irradiated (uranium oxide) fuel were examined. From these studies, the affinity of plutonium and americium for uranium in irradiated UO2 also was demonstrated at hydrothermal conditions (150 C anoxic liquid water) approaching those proposed for the STP process and even for hydrothermal conditions outside of the STP operating envelope (e.g., 150 C oxic and 100 C oxic and anoxic liquid water). In summary, by demonstrating that the chemical and physical behavior of 241Am in the sludge matrix is similar to that of the predominant species (uranium and for the plutonium from which it originates), a technical basis is provided for using the slow uptake transportability factor for 241Am that is currently used for plutonium and uranium oxides. The change from moderate to slow uptake for 241Am could reduce the overall analyzed dose consequences for the STP by more than 30%.

Delegard, Calvin H.; Schmitt, Bruce E.; Schmidt, Andrew J.

2006-08-01T23:59:59.000Z

474

Transportability Class of Americium in K Basin Sludge under Ambient and Hydrothermal Processing Conditions  

SciTech Connect

This report establishes the technical bases for using a ''slow uptake'' instead of a ''moderate uptake'' transportability class for americium-241 (241Am) for the K Basin Sludge Treatment Project (STP) dose consequence analysis. Slow uptake classes are used for most uranium and plutonium oxides. A moderate uptake class has been used in prior STP analyses for 241Am based on the properties of separated 241Am and its associated oxide. However, when 241Am exists as an ingrown progeny (and as a small mass fraction) within plutonium mixtures, it is appropriate to assign transportability factors of the predominant plutonium mixtures (typically slow) to the Am241. It is argued that the transportability factor for 241Am in sludge likewise should be slow because it exists as a small mass fraction as the ingrown progeny within the uranium oxide in sludge. In this report, the transportability class assignment for 241Am is underpinned with radiochemical characterization data on K Basin sludge and with studies conducted with other irradiated fuel exposed to elevated temperatures and conditions similar to the STP. Key findings and conclusions from evaluation of the characterization data and published literature are summarized here. Plutonium and 241Am make up very small fractions of the uranium within the K Basin sludge matrix. Plutonium is present at about 1 atom per 500 atoms of uranium and 241Am at about 1 atom per 19000 of uranium. Plutonium and americium are found to remain with uranium in the solid phase in all of the {approx}60 samples taken and analyzed from various sources of K Basin sludge. The uranium-specific concentrations of plutonium and americium also remain approximately constant over a uranium concentration range (in the dry sludge solids) from 0.2 to 94 wt%, a factor of {approx}460. This invariability demonstrates that 241Am does not partition from the uranium or plutonium fraction for any characterized sludge matrix. Most of the K Basin sludge characterization data is derived spent nuclear fuel corroded within the K Basins at 10-15?C. The STP process will place water-laden sludges from the K Basin in process vessels at {approx}150-180 C. Therefore, published studies with other irradiated (uranium oxide) fuel were examined. From these studies, the affinity of plutonium and americium for uranium in irradiated UO2 also was demonstrated at hydrothermal conditions (150 C anoxic liquid water) approaching those proposed for the STP process and even for hydrothermal conditions outside of the STP operating envelope (e.g., 150 C oxic and 100 C oxic and