UNT Libraries Government Documents Department - 48 Matching Results

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open access

Corn Stover for Bioethanol -- Your New Cash Crop?

Description: Biomass ethanol technology is still developing and important questions need to be answered about corn stover removal, but prospects are excellent for you to someday be able to harvest and sell a substantial portion of your stover for fuel production--without hurting your soil or main corn grain operation.
Date: May 16, 2001
Creator: Brown, H.
open access

Radiation Hydrodynamics

Description: The discipline of radiation hydrodynamics is the branch of hydrodynamics in which the moving fluid absorbs and emits electromagnetic radiation, and in so doing modifies its dynamical behavior. That is, the net gain or loss of energy by parcels of the fluid material through absorption or emission of radiation are sufficient to change the pressure of the material, and therefore change its motion; alternatively, the net momentum exchange between radiation and matter may alter the motion of the mat… more
Date: October 16, 2003
Creator: Castor, J. I.
open access

Measurements and characterization - Analytical microscopy

Description: This brochure presents the capabilities that the Measurements and Characterization Division has in Analytical Microscopy, in which a variety of sophisticated techniques are used to study a material's topographical, crystallographic, structural, chemical, and luminescence properties.
Date: March 16, 2000
Creator: Cook, G.
open access

Measurements and characterization - Data transfer and virtual lab

Description: This brochure presents the capabilities that the Measurements and Characterization Division has for transferring secure characterization data to clients over the Web, and for collaborating in R and D via the Web over distances (i.e., working as a virtual lab).
Date: March 16, 2000
Creator: Cook, G.
open access

Measurements and characterization - Device performance

Description: This brochure presents the capabilities that the Measurements and Characterization Division has in device performance, in which a variety of spectral responsivity and current-versus-voltage techniques are used to measure the spectral dependence of PV cells and module conversion efficiencies, and to measure the output performance of cells and modules under simulated and natural light.
Date: March 16, 2000
Creator: Cook, G.
open access

Measurements and characterization - Electro-optical characterization

Description: This brochure presents the capabilities that the Measurements and Characterization Division has in Electro-Optical Characterization, in which a variety of spectroscopy, ellipsometry, and capacitance techniques are used to probe the fundamental electrical and optical properties of solid-state materials.
Date: March 16, 2000
Creator: Cook, G.
open access

Measurements and characterization - Surface analysis

Description: This brochure presents the capabilities that the Measurements and Characterization Division has in Surface Analysis, in which a variety of spectrometry and spectroscopy techniques are used to determine the chemical, elemental, and molecular composition of material surfaces and interfaces.
Date: March 16, 2000
Creator: Cook, G.
open access

Application of Electron Backscatter Diffraction to Phase Identification

Description: The identification of crystalline phases in solids requires knowledge of two microstructural properties: crystallographic structure and chemical composition. Traditionally, this has been accomplished using X-ray diffraction techniques where the measured crystallographic information, in combination with separate chemical composition measurements for specimens of unknown pedigrees, is used to deduce the unknown phases. With the latest microstructural analysis tools for scanning electron microscop… more
Date: July 16, 2008
Creator: El-Dasher, B S & Deal, A
open access

Communications and Collaboration Keep San Francisco VA Medical Center Project on Track

Description: This case study about energy saving performance contacts (ESPCs) presents an overview of how the Veterans Affairs Medical Center in San Francisco established an ESPC contract and the benefits derived from it. The Federal Energy Management Program instituted these special contracts to help federal agencies finance energy-saving projects at their facilities.
Date: May 16, 2001
Creator: Federal Energy Management Program
open access

First Regional Super ESPC: Success on Kodiak Island, Alaska

Description: This case study about energy saving performance contacts (ESPCs) presents an overview of how the Coast Guard at Kodiak Island, Alaska, established an ESPC contract and the benefits derived from it. The Federal Energy Management Program instituted these special contracts to help federal agencies finance energy-saving projects at their facilities.
Date: May 16, 2001
Creator: Federal Energy Management Program
open access

Timescales and settings for alteration of chondritic meteorites

Description: Most groups of chondritic meteorites experienced diverse styles of secondary alteration to various degrees that resulted in formation of hydrous and anhydrous minerals (e.g., phyllosilicates, magnetite, carbonates, ferrous olivine, hedenbergite, wollastonite, grossular, andradite, nepheline, sodalite, Fe,Ni-carbides, pentlandite, pyrrhotite, Ni-rich metal). Mineralogical, petrographic, and isotopic observations suggest that the alteration occurred in the presence of aqueous solutions under vari… more
Date: November 16, 2005
Creator: Krot, A. N.; Hutcheon, I. D.; Brearley, A. J.; Pravdivtseva, O. V.; Petaev, M. I. & Hohenberg, C. M.
open access

Correlation Profiles and Motifs in Complex Networks.

Description: Networks have recently emerged as a unifying theme in complex systems research [1]. It is in fact no coincidence that networks and complexity are so heavily intertwined. Any future definition of a complex system should reflect the fact that such systems consist of many mutually interacting components. These components are far from being identical as say electrons in systems studied by condensed matter physics. In a truly complex system each of them has a unique identity allowing one to separate… more
Date: January 16, 2004
Creator: Maslov, S.; Sneppen, K. & Alon, U.
open access

Bridging the Gap between Quantum Mechanics and Large-Scale Atomistic Simulation

Description: The prospect of modeling across disparate length and time scales to achieve a predictive multiscale description of real materials properties has attracted widespread research interest in the last decade. To be sure, the challenges in such multiscale modeling are many, and in demanding cases, such as mechanical properties or dynamic phase transitions, multiple bridges extending from the atomic level all the way to the continuum level must be built. Although often overlooked in this process, one … more
Date: August 16, 2004
Creator: Moriarty, J. A.
open access

The Use Of Scanning Probe Microscopy To Investigate Crystal-Fluid Interfaces

Description: Over the past decade there has been a natural drive to extend the investigation of dynamic surfaces in fluid environments to higher resolution characterization tools. Various aspects of solution crystal growth have been directly visualized for the first time. These include island nucleation and growth using transmission electron microscopy and scanning tunneling microscopy; elemental step motion using scanning probe microscopy; and the time evolution of interfacial atomic structure using variou… more
Date: April 16, 2007
Creator: Orme, C. A. & Giocondi, J. L.
open access

Distributed Energy Resources at Federal Facilities. Federal Energy Management Program (FEMP) Technical Assistance Fact Sheet

Description: This two-page overview describes how the use of distributed energy resources at Federal facilities is being supported by the U.S. Department of Energy's (DOE's) Federal Energy Management Program (FEMP). Distributed energy resources include both existing and emerging energy technologies: advanced industrial turbines and microturbines; combined heat and power (CHP) systems; fuel cells; geothermal systems; natural gas reciprocating engines; photovoltaics and other solar systems; wind turbines; sma… more
Date: July 16, 2001
Creator: Pitchford, P.
open access

Technologies for Distributed Energy Resources. Federal Energy Management Program (FEMP) Technical Assistance Fact Sheet

Description: This four-page fact sheet describes distributed energy resources for Federal facilities, which are being supported by the U.S. Department of Energy's (DOE's) Federal Energy Management Program (FEMP). Distributed energy resources include both existing and emerging energy technologies: advanced industrial turbines and microturbines; combined heat and power (CHP) systems; fuel cells; geothermal systems; natural gas reciprocating engines; photovoltaics and other solar systems; wind turbines; small,… more
Date: July 16, 2001
Creator: Pitchford, P. & Brown, T.
open access

11th Workshop on Crystalline Silicon Solar Cell Materials and Processes, Extended Abstracts and Papers, 19-22 August 2001, Estes Park, Colorado

Description: The 11th Workshop will provide a forum for an informal exchange of technical and scientific information between international researchers in the photovoltaic and non-photovoltaic fields. Discussions will include the various aspects of impurities and defects in silicon--their properties, the dynamics during device processing, and their application for developing low-cost processes for manufacturing high-efficiency silicon solar cells. Sessions and panel discussions will review impurities and def… more
Date: August 16, 2001
Creator: Sopori, B.
open access

Biofuels News--Winter 2001, Vol. 4, No. 1

Description: Newsletter for the DOE Biofuels Program. Articles on collaborative projects with USDA, and OIT. Contains an interview with Doug Kaempf, co-director of the National Biobased Products and Bioenergy Coordination Office.
Date: April 16, 2001
Creator: Tuttle, J.H.
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