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1,323 Matching Results
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High-Compression-Ratio; Atkinson-Cycle Engine Using Low-Pressure Direct Injection and Pneumatic-Electronic Valve Actuation Enabled by Ionization Current and Foward-Backward Mass Air Flow Sensor Feedback
This report describes the work completed over a two and one half year effort sponsored by the US Department of Energy. The goal was to demonstrate the technology needed to produce a highly efficient engine enabled by several technologies which were to be developed in the course of the work. The technologies included: (1) A low-pressure direct injection system; (2) A mass air flow sensor which would measure the net airflow into the engine on a per cycle basis; (3) A feedback control system enabled by measuring ionization current signals from the spark plug gap; and (4) An infinitely variable cam actuation system based on a pneumatic-hydraulic valve actuation These developments were supplemented by the use of advanced large eddy simulations as well as evaluations of fuel air mixing using the KIVA and WAVE models. The simulations were accompanied by experimental verification when possible. In this effort a solid base has been established for continued development of the advanced engine concepts originally proposed. Due to problems with the valve actuation system a complete demonstration of the engine concept originally proposed was not possible. Some of the highlights that were accomplished during this effort are: (1) A forward-backward mass air flow …
Date:
December 31, 2007
Creator:
Schock, Harold; Jaberi, Farhad; Naguib, Ahmed; Zhu, Guoming & Hung, David
Object Type:
Report
System:
The UNT Digital Library
Laboratory Directed Research and Development Program Activities for FY 2007.
Brookhaven National Laboratory (BNL) is a multidisciplinary laboratory that carries out basic and applied research in the physical, biomedical, and environmental sciences, and in selected energy technologies. It is managed by Brookhaven Science Associates, LLC, (BSA) under contract with the U. S. Department of Energy (DOE). BNL's Fiscal year 2007 budget was $515 million. There are about 2,600 employees, and another 4,500 guest scientists and students who come each year to use the Laboratory's facilities and work with the staff. The BNL Laboratory Directed Research and Development (LDRD) Program reports its status to the U.S. Department of Energy (DOE) annually in March, as required by DOE Order 413.2B, 'Laboratory Directed Research and Development', April 19, 2006, and the Roles, Responsibilities, and Guidelines for Laboratory Directed Research and Development at the Department of Energy/National Nuclear Security Administration Laboratories dated June 13, 2006. In accordance this is our Annual Report in which we describe the Purpose, Approach, Technical Progress and Results, and Specific Accomplishments of all LDRD projects that received funding during Fiscal Year 2007. The goals and objectives of BNL's LDRD Program can be inferred from the Program's stated purposes. These are to (1) encourage and support the development of new …
Date:
December 31, 2007
Creator:
Newman, L.
Object Type:
Report
System:
The UNT Digital Library
Oilfield Flare Gas Electricity Systems (OFFGASES Project)
The Oilfield Flare Gas Electricity Systems (OFFGASES) project was developed in response to a cooperative agreement offering by the U.S. Department of Energy (DOE) and the National Energy Technology Laboratory (NETL) under Preferred Upstream Management Projects (PUMP III). Project partners included the Interstate Oil and Gas Compact Commission (IOGCC) as lead agency working with the California Energy Commission (CEC) and the California Oil Producers Electric Cooperative (COPE). The project was designed to demonstrate that the entire range of oilfield 'stranded gases' (gas production that can not be delivered to a commercial market because it is poor quality, or the quantity is too small to be economically sold, or there are no pipeline facilities to transport it to market) can be cost-effectively harnessed to make electricity. The utilization of existing, proven distribution generation (DG) technologies to generate electricity was field-tested successfully at four marginal well sites, selected to cover a variety of potential scenarios: high Btu, medium Btu, ultra-low Btu gas, as well as a 'harsh', or high contaminant, gas. Two of the four sites for the OFFGASES project were idle wells that were shut in because of a lack of viable solutions for the stranded noncommercial gas that they produced. …
Date:
December 31, 2007
Creator:
Henderson, Rachel & Fickes, Robert
Object Type:
Report
System:
The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 101, No. 104, Ed. 1 Friday, December 28, 2007
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
December 28, 2007
Creator:
Cartwright, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 132, No. 31, Ed. 1 Thursday, December 27, 2007
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
December 27, 2007
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Dublin Citizen (Dublin, Tex.), Vol. 18, No. 17, Ed. 1 Thursday, December 27, 2007
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
December 27, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Odem-Edroy Times (Odem, Tex.), Vol. 61, No. 52, Ed. 1 Thursday, December 27, 2007
Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.
Date:
December 27, 2007
Creator:
Tracy, James
Object Type:
Newspaper
System:
The Portal to Texas History
The Suburbia News (Seagoville, Tex.), Vol. 36, No. 5, Ed. 1 Thursday, December 27, 2007
Weekly newspaper from Seagoville, Texas that includes local, state and national news along with advertising.
Date:
December 27, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 112, No. 52, Ed. 1 Wednesday, December 26, 2007
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 26, 2007
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Democracy Promotion: Cornerstone of U.S. Foreign Policy?
This report contains a summary on democracy. This report provides an overview of the promotion of Democracy and the U.S. government's activities to promote democracy.
Date:
December 26, 2007
Creator:
Epstein, Susan B.; Serafino, Nina M. & Miko, Francis T.
Object Type:
Report
System:
The UNT Digital Library
FCC Media Ownership Rules: Current Status and Issues for Congress
On June 2, 2003, the Federal Communications Commission modified five of its media ownership rules, easing restrictions on the ownership of multiple television stations and on local media cross-ownership, and tightening restrictions on the ownership of multiple radio stations in local markets.
Date:
December 26, 2007
Creator:
Goldfarb, Charles B.
Object Type:
Report
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 135, No. 90, Ed. 1 Wednesday, December 26, 2007
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
December 26, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 125, No. 100, Ed. 1 Sunday, December 23, 2007
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
December 23, 2007
Creator:
Reddell, Valerie
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 101, No. 102, Ed. 1 Friday, December 21, 2007
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
December 21, 2007
Creator:
Cartwright, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
Dallas Voice (Dallas, Tex.), Vol. 24, No. 31, Ed. 1 Friday, December 21, 2007
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
December 21, 2007
Creator:
Nash, Tammye
Object Type:
Newspaper
System:
The UNT Digital Library
Digital Manufacturing of Gradient Meshed SOFC Sealing Composites with Self-Healing Capabilities
Solid oxide fuel cells (SOFC) hold great promise for clean power generation. However, high temperature stability and long term durability of the SOFC components have presented serious problems in SOFC technological advancement and commercialization. The seals of the fuel cells are the most challenging area to address. A high temperature gas seal is highly needed which is durable against cracking and gas leakage during thermal cycling and extended operation. This project investigates a novel composite seal by integrating 3D printed shape memory alloy (SMA) wires into a glass matrix. The SMA we use is TiNiHf and the glass matrix we use is SrO-La{sub 2}O{sub 3}-Al{sub 2}O{sub 3}-B{sub 2}O{sub 3}-SiO{sub 2} (SLABS). Dilatometry shows to be an extremely useful tool in providing the CTEs. It pinpoints regions of different CTEs under simulated SOFC thermal cycles for the same glass. For the studied SLABS glass system, the region with the greatest CTE mismatch between the glass seal and the adjacent components is 40-500 C, the typical heating and cooling regions for SOFCs. Even for low temperature SOFC development, this region is still present and needs to be addressed. We have demonstrated that the proposed SLABS glass has great potential in mitigating the …
Date:
December 21, 2007
Creator:
Lu, Kathy; Story, Christopher & Reynolds, W.T.
Object Type:
Report
System:
The UNT Digital Library
The Economics of Corporate Executive Pay
None
Date:
December 21, 2007
Creator:
Shorter, Gary & Labonte, Marc
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, December 21, 2007
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 21, 2007
Creator:
Wilson, Chris
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
German-Texan Heritage Society, The Journal, Volume 29, Number 4, Winter 2007
Quarterly publication of the German-Texan Heritage Society providing information about news and events related to the work of the organization as well as stories, articles, genealogical data and other information of interest to members collected from representatives across Texas.
Date:
Winter 2007
Creator:
German-Texan Heritage Society
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Journal of Near-Death Studies, Volume 26, Number 2, Winter 2007
Quarterly journal publishing papers related to near-death experiences, including research reports; theoretical or conceptual statements; expressions of a scientific, philosophic, religious, or historical perspective on the study of near-death experiences; cross-cultural studies; individual case histories; and personal accounts of experiences or related phenomena.
Date:
Winter 2007
Creator:
Greyson, Bruce
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The North Texan, Volume 57, Number 4, Winter 2007
The North Texan includes articles and notes about University of North Texas students, faculty, and alumni activities.
Date:
Winter 2007
Creator:
University of North Texas
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Rio Grande Herald (Rio Grande City, Tex.), Vol. 94, No. 50, Ed. 1 Thursday, December 20, 2007
Weekly newspaper from Rio Grande City, Texas that includes local, state and national news along with extensive advertising.
Date:
December 20, 2007
Creator:
Roberts, Kenneth
Object Type:
Newspaper
System:
The Portal to Texas History
TALC: A Simple C Language Extension For Improved Performance and Code Maintainability
None
Date:
December 20, 2007
Creator:
Keasler, J.; Jones, T. & Quinlan, D.
Object Type:
Article
System:
The UNT Digital Library
Texas Jewish Post (Fort Worth, Tex.), Vol. 61, No. 51, Ed. 1 Thursday, December 20, 2007
Weekly Jewish newspaper from Fort Worth, Texas that includes local, state and national news along with extensive advertising.
Date:
December 20, 2007
Creator:
Wisch, Rene
Object Type:
Newspaper
System:
The Portal to Texas History