Structural Genomics of Minimal Organisms: Pipeline and Results (open access)

Structural Genomics of Minimal Organisms: Pipeline and Results

The initial objective of the Berkeley Structural Genomics Center was to obtain a near complete three-dimensional (3D) structural information of all soluble proteins of two minimal organisms, closely related pathogens Mycoplasma genitalium and M. pneumoniae. The former has fewer than 500 genes and the latter has fewer than 700 genes. A semiautomated structural genomics pipeline was set up from target selection, cloning, expression, purification, and ultimately structural determination. At the time of this writing, structural information of more than 93percent of all soluble proteins of M. genitalium is avail able. This chapter summarizes the approaches taken by the authors' center.
Date: September 14, 2007
Creator: Kim, Sung-Hou; Shin, Dong-Hae; Kim, Rosalind; Adams, Paul & Chandonia, John-Marc
System: The UNT Digital Library
Time-resolved THz studies of carrier dynamics in semiconductors, superconductors, and strongly-correlated electron materials (open access)

Time-resolved THz studies of carrier dynamics in semiconductors, superconductors, and strongly-correlated electron materials

Perhaps the most important aspect of contemporary condensed matter physics involves understanding strong Coulomb interactions between the large number of electrons in a solid. Electronic correlations lead to the emergence of new system properties, such as metal-insulator transitions, superconductivity, magneto-resistance, Bose-Einstein condensation, the formation of excitonic gases, or the integer and fractional Quantum Hall effects. The discovery of high-Tc superconductivity in particular was a watershed event, leading to dramatic experimental and theoretical advances in the field of correlated-electron systems. Such materials often exhibit competition between the charge, lattice, spin, and orbital degrees of freedom, whose cause-effect relationships are difficult to ascertain. Experimental insight into the properties of solids is traditionally obtained by time-averaged probes, which measure e.g., linear optical spectra, electrical conduction properties, or the occupied band structure in thermal equilibrium. Many novel physical properties arise from excitations out of the ground state into energetically higher states by thermal, optical, or electrical means. This leads to fundamental interactions between the system's constituents, such as electron-phonon and electron-electron interactions, which occur on ultrafast timescales. While these interactions underlie the physical properties of solids, they are often only indirectly inferred from time-averaged measurements. Time-resolved spectroscopy, consequently, is playing an ever increasing role …
Date: November 14, 2006
Creator: Kaindl, Robert A. & Averitt, Richard D.
System: The UNT Digital Library
Chapter 4: Geological Carbon Sequestration (open access)

Chapter 4: Geological Carbon Sequestration

Carbon sequestration is the long term isolation of carbon dioxide from the atmosphere through physical, chemical, biological, or engineered processes. The largest potential reservoirs for storing carbon are the deep oceans and geological reservoirs in the earth's upper crust. This chapter focuses on geological sequestration because it appears to be the most promising large-scale approach for the 2050 timeframe. It does not discuss ocean or terrestrial sequestration. In order to achieve substantial GHG reductions, geological storage needs to be deployed at a large scale. For example, 1 Gt C/yr (3.6 Gt CO{sub 2}/yr) abatement, requires carbon capture and storage (CCS) from 600 large pulverized coal plants ({approx}1000 MW each) or 3600 injection projects at the scale of Statoil's Sleipner project. At present, global carbon emissions from coal approximate 2.5 Gt C. However, given reasonable economic and demand growth projections in a business-as-usual context, global coal emissions could account for 9 Gt C. These volumes highlight the need to develop rapidly an understanding of typical crustal response to such large projects, and the magnitude of the effort prompts certain concerns regarding implementation, efficiency, and risk of the enterprise. The key questions of subsurface engineering and surface safety associated with carbon sequestration …
Date: June 14, 2006
Creator: Friedmann, J. & Herzog, H.
System: The UNT Digital Library
Monodisperse metal nanoparticle catalysts on silica mesoporous supports: synthesis, characterizations, and catalytic reactions (open access)

Monodisperse metal nanoparticle catalysts on silica mesoporous supports: synthesis, characterizations, and catalytic reactions

The design of high performance catalyst achieving near 100% product selectivity at maximum activity is one of the most important goals in the modern catalytic science research. To this end, the preparation of model catalysts whose catalytic performances can be predicted in a systematic and rational manner is of significant importance, which thereby allows understanding of the molecular ingredients affecting the catalytic performances. We have designed novel 3-dimensional (3D) high surface area model catalysts by the integration of colloidal metal nanoparticles and mesoporous silica supports. Monodisperse colloidal metal NPs with controllable size and shape were synthesized using dendrimers, polymers, or surfactants as the surface stabilizers. The size of Pt, and Rh nanoparticles can be varied from sub 1 nm to 15 nm, while the shape of Pt can be controlled to cube, cuboctahedron, and octahedron. The 3D model catalysts were generated by the incorporation of metal nanoparticles into the pores of mesoporous silica supports via two methods: capillary inclusion (CI) and nanoparticle encapsulation (NE). The former method relies on the sonication-induced inclusion of metal nanoparticles into the pores of mesoporous silica, whereas the latter is performed by the encapsulation of metal nanoparticles during the hydrothermal synthesis of mesoporous silica. The …
Date: September 14, 2009
Creator: Somorjai, G.A.
System: The UNT Digital Library
Hyperspectral Geobotanical Remote Sensing for CO2 Storage Monitoring (open access)

Hyperspectral Geobotanical Remote Sensing for CO2 Storage Monitoring

This project's goal is to develop remote sensing methods for early detection and spatial mapping, over whole regions simultaneously, of any surface areas under which there are significant CO2 leaks from deep underground storage formations. If large amounts of CO2 gas percolated up from a storage formation below to within plant root depth of the surface, the CO2 soil concentrations near the surface would become elevated and would affect individual plants and their local plant ecologies. Excessive soil CO2 concentrations are observed to significantly affect local plant and animal ecologies in our geothermal exploration, remote sensing research program at Mammoth Mountain CA USA. We also know from our geothermal exploration remote sensing programs, that we can map subtle hidden faults by spatial signatures of altered minerals and of plant species and health distributions. Mapping hidden faults is important because in our experience these highly localized (one to several centimeters) spatial pathways are good candidates for potentially significant CO2 leaks from deep underground formations. The detection and discrimination method we are developing uses primarily airborne hyperspectral, high spatial (3 meter) with 128 band wavelength resolution, visible and near infrared reflected light imagery. We also are using the newly available ''Quickbird'' satellite …
Date: May 14, 2004
Creator: Pickles, W & Cover, W
System: The UNT Digital Library
Scalable Molecular Dynamics with NAMD (open access)

Scalable Molecular Dynamics with NAMD

None
Date: December 14, 2012
Creator: Phillips, J. C.; Schulten, K.; Bhatele, A.; Mei, C.; Sun, Y. & Kale, L. V.
System: The UNT Digital Library
OpenAtom: Ab initio Molecular Dynamics for Petascale Platforms (open access)

OpenAtom: Ab initio Molecular Dynamics for Petascale Platforms

None
Date: December 14, 2012
Creator: Martyna, G. J.; Bohm, E. J.; Venkataraman, R.; Arya, A.; Kale, L. V. & Bhatele, A.
System: The UNT Digital Library
Biological Treatment of Petroleum in Radiologically Contaminated Soil (open access)

Biological Treatment of Petroleum in Radiologically Contaminated Soil

This chapter describes ex situ bioremediation of the petroleum portion of radiologically co-contaminated soils using microorganisms isolated from a waste site and innovative bioreactor technology. Microorganisms first isolated and screened in the laboratory for bioremediation of petroleum were eventually used to treat soils in a bioreactor. The bioreactor treated soils contaminated with over 20,000 mg/kg total petroleum hydrocarbon and reduced the levels to less than 100 mg/kg in 22 months. After treatment, the soils were permanently disposed as low-level radiological waste. The petroleum and radiologically contaminated soil (PRCS) bioreactor operated using bioventing to control the supply of oxygen (air) to the soil being treated. The system treated 3.67 tons of PCRS amended with weathered compost, ammonium nitrate, fertilizer, and water. In addition, a consortium of microbes (patent pending) isolated at the Savannah River National Laboratory from a petroleum-contaminated site was added to the PRCS system. During operation, degradation of petroleum waste was accounted for through monitoring of carbon dioxide levels in the system effluent. The project demonstrated that co-contaminated soils could be successfully treated through bioventing and bioaugmentation to remove petroleum contamination to levels below 100 mg/kg while protecting workers and the environment from radiological contamination.
Date: November 14, 2005
Creator: BERRY, CHRISTOPHER
System: The UNT Digital Library
Inventions & Innovations: Products from Metal Powders (open access)

Inventions & Innovations: Products from Metal Powders

Order this fact sheet today to learn how the latest innovative process for heat treating metal powders can both reduce costs and save energy.
Date: January 14, 1999
Creator: Poole, L & Recca, L.
System: The UNT Digital Library
Steel--Project Fact Sheet: Recycling Acid and Metal Salts from Pickling Liquors (open access)

Steel--Project Fact Sheet: Recycling Acid and Metal Salts from Pickling Liquors

Regenerating hydrochloric acids from metal finishing pickling baths reduces costs, wastes, and produces a valuable by-product--ferrous sulfate. Order your copy of this OIT project fact sheet and learn more about how your company can benefit.
Date: January 14, 1999
Creator: Poole, L. & Recca, L.
System: The UNT Digital Library
Christian veneer dryer (open access)

Christian veneer dryer

Fact sheet written for the Inventions and Innovation Program about a new closed rotary drum dryer for the forest products industry.
Date: December 14, 1999
Creator: National Renewable Energy Laboratory (U.S.)
System: The UNT Digital Library
Office of Industrial Technologies Information Resources Catalog 2000 (open access)

Office of Industrial Technologies Information Resources Catalog 2000

The Information Resources Catalog describes publications, videos, software, and other products available from OIT. These resources can help industrial firms improve energy efficiency and competitiveness, while reducing waste and pollution. Because many OIT resources have applications in multiple areas, the index is organized as a matrix.
Date: January 14, 2000
Creator: National Renewable Energy Laboratory (U.S.)
System: The UNT Digital Library
New technology for sulfide reductions and increased oil recovery: Petroleum project fact sheet (open access)

New technology for sulfide reductions and increased oil recovery: Petroleum project fact sheet

This Fact Sheet is written for the Inventions and Innovations Program about a new technology for sulfide reduction and increased oil recovery. The new technology, called Bio-Competitive Exclusion (BCX), results in greater oil production and prevents the production of corrosive hydrogen sulfide in oil and gas reservoirs. This BCX process is initiated and maintained by a new product, called Max-Well 2000, in which nutrients are custom designed to stimulate targeted beneficial microorganisms that live in every oil and gas reservoir. Rapid growth of these microorganisms excludes activity of harmful sulfide-producing bacteria and produces by-products that serve as effective tertiary oil recovery agents and as sulfide degradation agents. Oil and gas production is both increased and sweetened.
Date: December 14, 1999
Creator: unknown
System: The UNT Digital Library
Meta-Lax stress relief process saves energy: Metalcasting success story (open access)

Meta-Lax stress relief process saves energy: Metalcasting success story

Fact sheet written for the Inventions and Innovation Program about a new method for stress relief in metalcasting processes that reduces energy consumption and eliminates pollution.
Date: December 14, 1999
Creator: National Renewable Energy Laboratory (U.S.)
System: The UNT Digital Library
Innovative system blows away sorting problems for recyclers: Aluminum success story (open access)

Innovative system blows away sorting problems for recyclers: Aluminum success story

Fact sheet written for the Inventions and Innovation Program about an electronic-pneumatic system for separating aluminum in mixed recyclable streams.
Date: December 14, 1999
Creator: Theis, K.
System: The UNT Digital Library
Solar Electricity: The Power of Choice, Second Quarter 2001 (open access)

Solar Electricity: The Power of Choice, Second Quarter 2001

Solar Electricity - The Power of Choice (formerly NREL PV Working With Industry) is a quarterly newsletter devoted to the photovoltaics (PV) research and development activities performed by NREL staff in concert with their industry and university partners. This issue is devoted to demonstrating that PV R and D is a valuable investment for the United States. The editorialist for this issue is Larry Kazmerski, director of the National Center for Photovoltaics.
Date: August 14, 2001
Creator: Moon, S.; Cook, G. & Schnelten, K.
System: The UNT Digital Library
Alternative Fuel News, Volume 4, Number 3 (open access)

Alternative Fuel News, Volume 4, Number 3

This issue of Alternative Fuel News focuses on transit buses and refuse haulers. Many transit agencies and waste management companies are investigating alternatives to traditional diesel buses and refuse haulers.
Date: November 14, 2000
Creator: Ficker, C.
System: The UNT Digital Library
Wind Powering America: Clean Energy for the 21st Century (revised) (open access)

Wind Powering America: Clean Energy for the 21st Century (revised)

This Wind Powering America brochure provides the perspectives on the benefits of wind power from 10 U.S. citizens from different sectors of society, including ranching, utility commissioner, parent, Native American, farmer/county commissioner, business owner, and independent turbine operator. It also provides basic facts about wind power, contacts for information about wind power, and a brief description of the Wind Powering America Initiative, its goals and its benefits.
Date: February 14, 2001
Creator: O'Dell, K.
System: The UNT Digital Library
Renewable Energy: An Overview (open access)

Renewable Energy: An Overview

This fact sheet provides an introduction to renewable energy technologies: hydropower, bioenergy, geothermal energy, solar energy, wind energy, hydrogen, and ocean energy.
Date: March 14, 2001
Creator: Tromly, K.
System: The UNT Digital Library
Passive Solar Design: Technology Fact Sheet; Office of Building Technology, State and Community Programs (BTS) (open access)

Passive Solar Design: Technology Fact Sheet; Office of Building Technology, State and Community Programs (BTS)

Fact sheet for homeowners and contractors on using passive solar design features in homes can increase energy efficiency and comfort. Topics include design techniques, cost, and passive solar design tools.
Date: December 14, 2000
Creator: Institute, Southern Energy
System: The UNT Digital Library
Passive Solar Design for the Home (open access)

Passive Solar Design for the Home

This fact sheet provides homeowners with an introduction to passive solar design, which is also called climatic design. It explains how they can use windows, walls, and floors to collect, store, and distribute solar energy to heat their homes in the winter, as well as reject solar heat in the summer. It includes information on heat-movement physics; basic solar design techniques--direct gain, indirect gain (Trombe walls), isolated gain (sunspaces), and design for summer comfort; window options for passive solar; and design cost.
Date: February 14, 2001
Creator: Krigger, J. & Waggoner, T.
System: The UNT Digital Library
Regional Resource Centers for Innovation Brochure (Revised) (open access)

Regional Resource Centers for Innovation Brochure (Revised)

This brochure describes OIT's Regional Resource Centers for Innovation (RCIs), which provide the Innovation and Invention program grantees and other small business energy innovators commercialization assistance.
Date: September 14, 2000
Creator: Wogsland, J.
System: The UNT Digital Library
UPS CNG Truck Fleet Start Up Experience: Alternative Fuel Truck Evaluation Project (open access)

UPS CNG Truck Fleet Start Up Experience: Alternative Fuel Truck Evaluation Project

UPS operates 140 Freightliner Custom Chassis compressed natural gas (CNG)-powered vehicles with Cummins B5.9G engines. Fifteen are participating in the Alternative Fuel Truck Evaluation Project being funded by DOE's Office of Transportation Technologies and the Office of Heavy Vehicle Technologies.
Date: August 14, 2001
Creator: Walkowicz, K.
System: The UNT Digital Library
Building integrated PV for commercial and institutional structures, a sourcebook for architects (open access)

Building integrated PV for commercial and institutional structures, a sourcebook for architects

This sourcebook on building-integrated photovoltaics (BIPV) is intended for architects and designers interested in learning more about today's sustainable solar buildings. The booklet includes 16 design briefs describing actual structures; they illustrate how electricity-generating BIPV products (such as special roofing systems, vertical-wall systems, skylights, and awnings, all of which contain PV cells, modules, and films) can be integrated successfully into many different kinds of buildings. It also contains basic information about BIPV technologies, an overview of US product development activities and development programs, descriptions of major software design tools, and a bibliography.
Date: February 14, 2000
Creator: Eiffert, P. & Kiss, G.
System: The UNT Digital Library