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An Analysis Of Preliminary Test Campaign Results For A Microscale Solar Thermal Engine, Major Fred Kennedy

Small Satellite Conference

In the fall of 2001, the author embarked on an investigation of small (< 100 kg) satellites augmented with high-performance solar thermal propulsion (STP). Small satellites have historically been confined to low earth orbits, with only a very limited capability to alter orbital parameters. A solar thermal propulsion system, properly downsized, could enable microsatellites to perform missions to high earth orbit, as well as lunar, near earth asteroid, and interplanetary intercepts, without the aid of expensive upper stages. Specific impulses of up to 400 seconds (s) are theoretically achievable, with storable monopropellants; velocity changes of up to 3,000 m/s may therefore be attained. This paper will briefly review a selection of benchmark missions and their requirements, and the preliminary and detailed design choices including specific ground rules. However, the focus of the paper is on recent component test results in three key areas: (1) novel ceramic gasketing and metal-to-ceramic bonding methods, a necessity for hermetically sealing the solar thermal cavity receiver; (2) optical performance measurements of a lightweight metal solar concentrating mirror; and (3) thermal performance measurements of the insulated cavity receiver in a series of electrical heating tests in vacuum. A comparison of test data will be made to the results of the author’s optical and thermal models, demonstrating strong agreement between predicted and actual results. These results strongly suggest that solar thermal propulsion can in fact provide substantial orbit transfer capability to small satellites.

Murray Ledger And Times, August 13, 2003, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Great Griz Encounter Features Monte, Coaches, Players, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

30-Second Psa: Greet The Griz At Annual Encounter, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Second Afghan Student Joins Um, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Stony Brook Press, V. 24, N. 14, Stony Brook University. Stony Brook Press.

Stony Brook Press

v. 24, n. 14, v.:ill. ; 38 cm (original analog pub.)

Prospects For Affordable Access To Space For Small Payloads, 2003-2012 , Jeff Foust

Small Satellite Conference

Affordable access to space has been one of the key issues in the history of space exploration. It is a particularly critical issue for small payloads, where the cost of launch can run many times more than the cost of the payload itself, making many projects financially infeasible. This paper surveys the vehicles in service today as well as those announced or under development in the next decade that can address the small payload market. This analysis includes the estimated launch costs, launch rates, and capacities of the vehicles, as well as the likelihood that vehicles under development will actually …

University Of New Mexico Board Of Regents Minutes For August 12, 2003, University Of New Mexico Board Of Regents

Board of Regents Meeting Minutes

Minutes from the August 12, 2003 Board of Regents Meeting

Ua3/9/5 Faculty/Staff Convocation, Wku President's Office

WKU Administration Documents

Speech delivered by WKU president Gary Ransdell at fall convocation. He discusses the Challenging the Spirit strategic plan, achievements, diversity, affirmative action, accessibility, accreditation and WKU's centennial.

Sheep Updates 2003 - Wool, Richard Coole, Stephen Gherardi, Chris Oldham, K. Curtis, J. Stanton, Johan Greeff, Chris Oldham, Mike Hyder, Beth Pagamoni, Andrew Thompson, Tom Plaisted, Kazue Tanaka, Mike Ferguson, Darren Gordon, Andrew Peterson, Peter Sommerville

Sheep Updates

This session covers six papers from different authors:1.‘Pastures from space’ - an opportunity to increase the profitability of sheep production Richard Coole Farmer Kojonup W.A. Stephen Gherardi Chris Oldham Department of Agriculture Western Australia 2. K. Curtis Department of Agriculture WA J. Stanton Department of Agriculture WA and Curtin University 3. Is selection of ewe hogget replacement on measurement profitable? Johan Greeff Department of Agriculture of Western Australia 4. Optimising the nutrition/grazing management of ewe flocks Chris Oldham Mike Hyder Beth Paganoni Department of Agriculture of Western Australia Andrew Thompson Department of Primary Industries, Hamilton, Victoria Tom Plaisted Kazue Tanaka …

Statement From The University Of New Hampshire On Series Of Off Campus Burglaries, Jennifer Murray

Media Relations

No abstract provided.

Community Buildings Workshop Set For Aug. 27 At Um, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Whose Surname Should A Child Have? A New York Court's Ruling Reinforces Sexist Traditions, Joanna Grossman

Hofstra Law Faculty Scholarship

No abstract provided.

Murray Ledger And Times, August 12, 2003, Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

Global Space League Upcoming Ride-Along Opportunities, Joan Horvath, Charlie Chao, Christopher Kitts, Jeff Patterson, Ron Phillips, Rex Ridenoure, Donna Shirley, Randy Stewart

Small Satellite Conference

Global Space League is a new organization which arranges for students nationwide to take part in real science experiments being performed in places not usually accessible to them: the stratosphere, the ocean, onboard test flights of new flight vehicles, and similar environments. Global Space League has three key customers: scientists exploring interesting environments willing to provide a "ride-along" capability to Global Space League experiments; working scientists who want to come up with a student participatory experiment that can uniquely get some useful data in that environment; and students who want to be involved in some actual missions. This year we …

Gsuniverse, 2003-08-11, Office Of Public Affairs

GSUniverse

Newsletter published by Governors State University 2002-2005.

Usd Chosen For Phi Beta Kappa Chapter, Office Of Public Information

News Releases (1968-2004)

No abstract provided.

Safety Tips, Kim Billings

Media Relations

No abstract provided.

Unh Works With Durham Police To Post Community Alerts, Jennifer Murray

Media Relations

No abstract provided.

Synthesis Of Chiral Surfactants For Enantioselective Organic Synthesis., Kalyan Mondal

Electronic Theses and Dissertations

The first step of the synthesis of the hydrocarbon-based chiral surfactant (2) involved the methylation of (S)-leucinol to give (2S)-N-hexadecyl-N,N-dimethyl-(1-hydroxy-4-methyl-1-pentyl)-2-ammonium bromide (2.92g, 67%). The chiral surfactant was synthesized by reacting (2S)-N,N-dimethyl-2-amino-4-methyl-1-pentanol (1) with bromohexadecane (2.06g, 71%). The functionalized styrene for the polymer supported chiral catalyst (6) was synthesized by reacting (1) with 4-vinylbenzyl chloride. The polymerization was carried out with 10% of the functionalized monomer (5) (1.26g, 70.2%), 5% cross-linking agent divinylbenzene, and 85% of styrene with AIBN as the initiator. The structure of each of the products was confirmed by using FTIR and NMR spectroscopy. The activity of the …

August 11, 2003 Reporter, University Of Alabama At Birmingham

eReporter (campus newsletter)

No abstract provided.

Community Alert Information On The Durham Burglaries, Kim Billings

Media Relations

No abstract provided.

Secure Remote Control And Configuration Of Fpx Platform In Gigabit Ethernet Environment, Haoyu Song

All Computer Science and Engineering Research

Because of its flexibility and high performance, reconfigurable logic functions implemented on the Field-programmable Port Extender (FPX ) are well suited for implementing network processing such as packet classification, filtering and intrusion detection functions. This project focuses on two key aspects of the FPX system. One is providing a Gigabit Ethernet interface by designing logic for a FPGA which is located on a line card. Address Resolution Protocol (ARP) packets are handled in hardware and Ethernet frames are processed and transformed into cells suitable for standard FPX application. The other effort is to provide a secure channel to enable remote …

Board Of Directors Meeting Minutes (August 11, 2003), Dmacc

Board of Directors Meeting Minutes

This file contains the minutes from the Des Moines Area Community College Board meeting held on August 11, 2003.

Pardon You? Pardon Me. Controversial Usage Of The Presidential Pardoning Power: From Carter To Clinton., Michael Keith Allen

Electronic Theses and Dissertations

In this study I propose to examine the usage of the pardoning power of the president as it relates to four aspects: the Nixon pardon, political advancement, defense of the person and his party, and independent private gain through the issuance of pardons. These aspects are all a part of the modern day usage of Article II Section 2 of the Constitution.

The study relies primarily on statements made from the presidents involved, as well as statements made by judicial persons involved in the pardoning process. The study is also drawn from direct investigations, both private and governmental. A good …

Deafdigest: Gold Edition, August 10, 2003, Barry Strassler

DeafDigest Gold 2003

No abstract provided.

Deafdigest: Blue Edition, August 10, 2003, Barry Strassler

DeafDigest Blue 2003

No abstract provided.

Technological Protection Measures In The United States, The European Union And Germany - How Much Fair Use Do We Need In The "Digital World"?, Wencke Baesler

ExpressO

This article analyzes the different approaches of the United States and the European Union in the EU Copyright Directive towards the protection of technological protection measures against circumvention. The European and German laws have a radically different approach to fair use that heretofore has not been satisfactorily examined. It is a basic principle of copyright law in the European countries not to provide for a broad fair use exception, but to enumerate specific uses that are excluded from the copyright owner’s right to intervene. However, mostly payment of a reasonable compensation is required. This system is preserved in the recently …

August 9, 2003 (Pages 3981-4054), Pennsylvania Legislative Reference Bureau

Volume 33 (2003)

No abstract provided.