Digital Commons Network^™

The Bates Student - Volume 127 Number 03 - September 19, 1997, Bates College

The Bates Student

No abstract provided.

Volume 33 - Issue 3 - Friday, September 19, 1997, Rose Thorn Staff

The Rose Thorn Archive

The Rose Thorn, Rose-Hulman's independent student newspaper.

Volume 35, Number 5: September 19, 1997, University Of North Dakota

University Letter Archive

No abstract provided.

Volume Cxv, Number 1, September 19, 1997, Lawrence University

The Lawrentian

No abstract provided.

Crusader, September 19, 1997, College Of The Holy Cross

Student Newspapers

The student newspaper for the College of the Holy Cross in Worcester, Massachusetts. Articles include coverage of campus events and issues, sports, editorials and special features.

Field Trip Guide (For The Nebraska Well Drillers Association) Northeastern Nebraska Geology, Sue Olafsen Lackey, Robert F. Diffendal Jr., Raymond R. Burchett, Duane A. Eversoll, Rodney J. Tremblay

Conservation and Survey Division: Faculty and Staff Publications

Field trip guide, for the Nebraska Well Drillers Association, covering northeastern Nebraska geology from September 1997.

Montana Kaimin, September 19, 1997, Associated Students Of The University Of Montana

Montana Kaimin, 1898-present

Student newspaper of the University of Montana, Missoula.

September 19, 1997, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

The High-Low Mix: A New Concept In Military Space, Matt Bille, Robyn Kane

Small Satellite Conference

U.S. military forces are dependent on space systems for communications, navigation, and other critical support functions. As we learned in Desert Storm, however, the requirements for space capability are difficult to forecast and easy to underestimate. The current U.S. approach relies on high-capacity, high-orbit satellites. Such satellites are relatively cost-effective: the larger the satellite, the lower the cost per pound to orbit it, and the lower the cost per unit of capacity. However, cost-effectiveness is not always the appropriate standard for selecting military systems. Combat forces must be provided with the capability they need to operate and win. This paper …

Predicting The Influence Of Software On The Reliability Of Commercial Off-The-Shelf (Cots) Technology Microprocessors In A Space Radiation Environment, Veronica Asenek, Craig Underwood, Mike Oldfield, Jeff Ward

Small Satellite Conference

State-of-the-art commercial microprocessors are attractive for use in cost effective space missions because, they are readily available, they are of high packaging density, cheap and capable of supporting extensive software. However, because they are not radiation hardened, they are susceptible to single event upset (SEU) caused by ionizing radiation. Being able to predict, in advance, the observable SEU induced error rate in a microprocessor is therefore essential. Using the 8051 processor as an example, a new method has being developed for this purpose and is presented here.

Western News, Sept. 18, 1997, Western Michigan University

Western News (1972-2018)

Story highlights: Aviation dedication, board meeting set for Battle Creek, Kellogg CEO begins lecture series Oct. 2, Haenicke to remain 'vigorously' involved in next year, Application of student fee gives technology a new boost across campus, Officials hope efforts add up to more success for minorities in science and math classes, WMU teams up to increase Special Olympics participation, Kurzmann selected for study visit to Germany.

Spartan Daily, September 18, 1997, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 109, Issue 14

The Comment, September 18, 1997, Bridgewater State College

The Comment

No abstract provided.

Illinois State University Report, September 18, 1997, Illinois State University

Illinois State University Report (1966-2012)

Illinois State University bi-weekly employee newsletter.

Singular Structure In 4d Simplicial Gravity, Simon Catterall, R. Renken, John B. Kogut

Physics - All Scholarship

We show that the phase transition previously observed in dynamical triangulation models of quantum gravity can be understood as being due to the creation of a singular link. The transition between singular and non-singular geometries as the gravitational coupling is varied appears to be first order.

The Attitude Control System Design For The Wide-Field Infrared Explorer Mission, Michael Fennell, Victoriano Untalan Iii, Michael Lee

Small Satellite Conference

This paper presents the Attitude Control System (ACS) design for the Wide-Field Infrared Explorer (WIRE) mission. The WIRE spacecraft, the fifth in the series of NASA Small Explorer (SMEX) spacecraft, is currently scheduled for launch in September 1998. WIRE is a momentum-biased, three-axis stabilized stellar pointer which must meet a radial pointing stability requirement of 6 arcsecond. The spacecraft will slew to a new target 8 to 10 times per orbit, and perform small (approximately 1 arc-minute) offset maneuvers every 48 seconds while on a target. As a means of providing the most science for the cost, the third SMEX …

Low-Cost Operation Of The Orbcomm Satellite Constellation, Andrew Lewin

Small Satellite Conference

Financial pressures are forcing organizations to minimize operations costs. Although the easiest way to achieve this goal is simply to reduce operational requirements, often this is not possible. Therefore, automation must be employed. This paper discusses the system trade-offs that must be performed to maximize the impact of automation efforts. The discussion begins with the development of generic automation guidelines. Since many automation issues are program-specific, the paper then addresses the application of these principles to operation of the ORBCOMM satellite constellation. This example demonstrates how automation can be used to produce a highly efficient satellite operations system.

Autonomous Mission Planning For Spin-Stabilized Science Satellites, Birgit Sauer, Michael Ricard

Small Satellite Conference

When reducing the operations costs of a satellite program, planning and scheduling are prime areas for consideration. In particular, scheduling satellite activities is repetitive, time-consuming, and nontrivial. Automating these tasks can reduce operator staffing requirements and increase the utility of the satellite. Additionally, since the main cost of an automated scheduler is its development, being able to use the scheduler for different satellite programs would lead to great cost savings. Since there is such variety in satellite programs, no one scheduler can realistically be used to schedule them all. Automated schedulers can, however, be developed for "classes" of satellites that …

Asusat1: The Development Of A Low-Cost Nano-Satellite, Shea Ferring, David Waller

Small Satellite Conference

In October 1993, the students at Arizona State University (ASU) were challenged by Orbital Sciences Corporation to develop a 4.5-kg (10-lb) satellite (ASUSat1) to be launched as a piggyback payload on a Pegasus rocket. The challenge also included the requirements for the satellite to perform meaningful science and to fit inside the Pegasus avionics section (0.033 m2 X 0.027 m). Moreover, the students were faced with the cost constraints associated with university projects. This unusual set of requirements resulted in a design and development process, which is fundamentally different from that of traditional space projects. The spacecraft capabilities and scientific …

Starshine: Student Tracked Atmospheric Research Satellite For Heuristic International Networking Experiment, Gilbert Moore, 2lt Scott Heritsch, Skip Dopp, Lt. Col. David Vallado, Lee Abraham, Mehrdad Roosta

Small Satellite Conference

U.S. high school and middle school students are building and polishing a spherical, mirrored Starshine spacecraft for launch by NASA into a 51.6 degree, 390 km (220 NM), circular orbit from a Space Shuttle Hitchhiker canister in December of 1998. Following the spacecraft's ejection into an independent orbit, sunlight reflected from its 220 mirrors will be visually observed during pre-dawn and post-sunset twilight intervals by international students during its planned six-month orbital lifetime in a project designed to teach these students how to measure the density of Earth's atmosphere at Space Station altitudes. The project is being cosponsored by the …

Off-The-Shelf Micro-Satellites For Science And Technology Missions: The Usaf Picosat Mission Using The Sstl Modular Microsatellite, Major David Tobin, Captain Gary Haag, Alex Da Silva Curiel, Jeff Ward, Mark Allery, Jenny Lorenzi

Small Satellite Conference

One way to achieve faster and cheaper small satellite missions is to make maximum use of off-the-shelf (OTS) technology. OTS subsystems are found in many small satellite missions, typically configured within a customized mission-specific space frame. Theoretically, costs and time-scales can be cut further by extending the OTS approach to the entire spacecraft, including mechanics, software and operations. This has been the objective of many "modular satellite" programs, including the Surrey Satellite Technology (SSTL) modular microsatellite bus. Since 1990, the basic SSTL bus has been applied to 11 missions carrying a wide variety of payloads into LEO. Inevitably, however, each …

Hexapod Herald - Vol. 10, No. 9, September 17, 1997

Hexapod Herald and Other Entomology Department Newsletters

Grants

Department news

Miscellaneous

From Cheri's desk

Calendar of events

News from the office

Stony Brook Press, V. 19, N. 02, Stony Brook University. Stony Brook Press.

Stony Brook Press

v. 19, n. 02, v.:ill. ; 38 cm (original analog pub.)

September 17, 1997, Faculty Senate

Minutes

No abstract provided.

The Missouri Miner, September 17, 1997

The Missouri Miner Newspaper

No abstract provided.

How Parental Involvement Increases The Academic Performance Of Special Education Students, Esperance St. Louis

Graduate Student Dissertations, Theses, Capstones, and Portfolios

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Banner News, Patrice Harson, Moses Lueth, Melinda Gorman, Lorraine Powell, Andrea Fester, Brent West, Jason Rearick, Aaron Foster, Jason D. Van Arkel, Scott Kovach

Banner News

No abstract provided.

The Knight Volume 7: Issue 2, Nova Southeastern University

Student Newspapers

No abstract provided.

The Australian Resource Information And Environment Satellite (Aries), Phase A Study, E. Roberts, J Huntington, R Denize

Small Satellite Conference

A Phase A study for the ARIES space-based hyperspectraI remote measurement program has been undertaken by the ARIES consortium of AUSPACE Limited, The Australian Centre for Remote Sensing (ACRES) and the Commonwealth Scientific and Industrial Research Organisation Division of Exploration and Mining (CSIRO DEM). AUSPACE has undertaken the space segment study, ACRES the ground segment design, and the CSIRO has undertaken overall project management for the study, market analysis and algorithm development. The paper describes the outcome of the study including space segment design and algorithm development, and the planned mission. A description of another Australian satellite program, FEDSAT-1, and …

The Chanticleer, 1997-09-16, Coastal Carolina University

The Chanticleer Student Newspaper

The editorially independent student produced weekly newspaper of Coastal Carolina University.