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Articles 131671 - 131700 of 136191
Full-Text Articles in Entire DC Network
Capabilities And Limitations Of The Shuttle For Future Cargo Programs, Lawrence G. Williams, Richard E. Matthews
Capabilities And Limitations Of The Shuttle For Future Cargo Programs, Lawrence G. Williams, Richard E. Matthews
Space Congress® Proceedings
This paper presents a view of future Shuttle cargo operations. Planned and potential performance improvements are addressed. On-orbit operations, performance and experience are discussed with a view of anticipated changes. Current and future cargo integration activities are also addressed. The future Shuttle user is provided a projection to assist in planning and payload development.
Conservation-The First Alternate Fuel, Lee R. Scherer, James E. Macdowell
Conservation-The First Alternate Fuel, Lee R. Scherer, James E. Macdowell
Space Congress® Proceedings
A great amount of attention and funds is being focused on alternate forms of energy. These efforts on a broad front should and must continue, but it is clear that the quickest, cheapest, and most reliable way to make more energy available for our use is through conservation. It can be demonstrated that the potential energy savings are twice the energy we now import from foreign sources.
30/20 Ghz Technology At Trw, W. M. Holmes
30/20 Ghz Technology At Trw, W. M. Holmes
Space Congress® Proceedings
TRW is developing two types of 20 GHz solid state power amplifiers:
1) an extremely complex 30 GHz receive antenna with both fixed and scanning beams, and
2) the electrical power conditioners (EPC) for a dual mode 7.5 and 75 watt 20 GHz travelling wave tube (TWT).
The solid state amplifiers are a GaAs FET unit with 7.5 watt output and an impatt diode amplifier with 20 watts output. The impatt unit uses a 12 diode combiner with a combining efficiency of 80%. The current breadboard unit provides 17.18 watts output in the injection locked mode.
The antenna uses an …
Largest Mesh Deployable Antenna Technology, B. C. Tankersley, B. E. Mcintosh
Largest Mesh Deployable Antenna Technology, B. C. Tankersley, B. E. Mcintosh
Space Congress® Proceedings
Preliminary assessments by both government and industry indicate that applications exist in the areas of communications, radio astronomy, and Earth observations requiring large, space based antennas. The mesh deployable antenna, based on its demonstrated success in the smaller aperture range, provides a promising near term capability for satisfying a significant number of these space-based applications. In this article the technology status of mesh deployable antennas is reviewed and design concepts applicable to very large mesh deployable reflectors are discussed. The present state-of-the-art performance is presented along with projections of potential performance improvement. These are compared with identified focus missions from …
Artificial Intelligence: Utilization In Advanced Space Missions, Barbara Bernabe
Artificial Intelligence: Utilization In Advanced Space Missions, Barbara Bernabe
Space Congress® Proceedings
The present report summarizes the research activities of the 1980 NASA "Technology Feasibility" Summer Study. The focus was the development of potential NASA programs designed to optimize the utilization of advanced automation. Within the scope of the study was the definition of advanced space missions, identification of R&D requirements, and a* feasibility assessment.
Mission definitions included an interactive satellite designed to continuously monitor the terrestrial environment; a permanently orbiting space manufacturing facility; a self-replicating lunar factory; and, a fully autonomous interstellar explorer.
Available AI systems were determined to encompass machine intelligence requirements to some degree. However, a major technological gap …
The Ldef Benefits, William H. Kinard
The Ldef Benefits, William H. Kinard
Space Congress® Proceedings
The Long Duration Exposure Facility (LDEF) will provide unique, needed, and affordable opportunities for large numbers of researchers in diverse fields to work in space, and, it is expected that LDEF experimenters will identify new ways to make space work for man.
The LDEF is essentially a free-flying cylindrical rack which is transported to and from space via the shuttle and on which many experiments, each contained in standard trays, are mounted.
This paper focuses on the types of experiments planned for the first LDEF mission' to illustrate the benefits from the LDEF/shuttle activity. The paper also briefly describes the …
Nasa/Industry Joint Venture On A Commercial Materials Processing In Space Idea, Richard L. Randolph
Nasa/Industry Joint Venture On A Commercial Materials Processing In Space Idea, Richard L. Randolph
Space Congress® Proceedings
Microgravity Research Associates, Inc. (MRA) was formed in 1979 for the purpose of engaging in materials processing in space. Toward this end, it recently became the third company to enter into a Joint Endeavor Agreement with NASA. This is a report on the progress of MRA and the nature and objectives of the joint endeavor. The MRA experience is unique in that this is the first start-up company, to become involved in materials processing in space through a joint endeavor with NASA.
Application Of Atp Assay Technique, Developed To Detect Extraterrestrial Life, For Rapid Detection Of Human Infections, Arvind M. Dhople
Application Of Atp Assay Technique, Developed To Detect Extraterrestrial Life, For Rapid Detection Of Human Infections, Arvind M. Dhople
Space Congress® Proceedings
The many advances in scientific and engineering knowledge produced by NASA space research often apply to major problems of modern society. To assist in the application of new technology and thus reduce the time interval from space development to direct benefit to society, NASA had established a technology-application effort at the Goddard Space Flight Center. As part of this effort we have been using, in collaboration with GSFC and also independently, technology for the detection of extraterrestrial life to develop a simple, fast and accurate procedure for detecting and counting bacteria in clinical specimens since management of infectious disease continues …
The Palapa Space Communication System, S. Brathahalim, P. A. Portmann
The Palapa Space Communication System, S. Brathahalim, P. A. Portmann
Space Congress® Proceedings
Indonesian social development has depended greatly upon the PALAPA space communication system since 1976 as one major component in the creation of a national infrastructure to enhance business development and the dissemination of national cultural information. The success of the first two satellites in serving telephone and television and in setving the Asean region has made it necessary to assure the continuity of these operations through the 1980's and beyond. Replacement Bl and B2 satellites have been contracted for delivery in early 1983. The uncertainties of placing these two new satellites in their chosen geosynchronous orbit locations has presented some …
The Fourth Energy Era, Ralph H. Nansen
The Fourth Energy Era, Ralph H. Nansen
Space Congress® Proceedings
The energy crisis has been with us for nearly ten years. We have grown numb to it while it changed the fundamental patterns of our lives. It no longer means long lines at the gas pumps, in fact, there has even been an oil glut recently. The crisis is not one of energy availability it is one of energy price which has driven the cost of energy to levels much higher than the inflation rates. This in turn has been a major driver of inflation because the cost of energy effects every aspect of our lives. As a result the …
U.S. Department Of Energy Synfuels Program Overview, Edward J. Lievens
U.S. Department Of Energy Synfuels Program Overview, Edward J. Lievens
Space Congress® Proceedings
The Administration has proposed shifting the focus of the Government's synfuels program to the Synthetic Fuels Corporation (SFC) and would assign to the SRC and responsibility to assist major synfuel plant construction projects. The U.S. Department of Energy (DOE), currently involved in the management and would discontinue its activities in this area.
Future Military Spacecraft Power Systems, Robert R. Barthelemy
Future Military Spacecraft Power Systems, Robert R. Barthelemy
Space Congress® Proceedings
During the past several years, a number of military space mission studies have concluded with interesting new information on the future needs and directions of military spacecraft power systems. In all cases, the trend to higher power level, for continuous as well as pulsed requirements, is clear. Although precise dates are impossible to define at this time, military spacecraft of the next twenty years will require steady state electrical power in the range of 10 to 100 kilowatts with pulsing capabilities in the megawatt region. As such, the major thrust of the DOD space power technology program focuses on the …
Life Support System Considerations For Space Station, Merlin A. Shuey, Hamilton Standard
Life Support System Considerations For Space Station, Merlin A. Shuey, Hamilton Standard
Space Congress® Proceedings
With the growing desire to initiate a Space Station program, the interest in advanced, regenerative life support systems is also increasing. This paper briefly reviews this future spacecraft and concentrates on the advanced technology in some of the key functions of life support for this application. This paper reviews the basics of life support and its importance within a space station program. It concentrates«on the impact of major requirements and discusses some of the key influences that impact the design of the system. It also projects some of the key functional areas of the life support system which are most …
Progress In Renewables, Robert L. San Martin
Progress In Renewables, Robert L. San Martin
Space Congress® Proceedings
This is a status report on progress made in the conduct of eleven Federally-supported renewable energy programs. Considerable progress has been made in the establishment and development of an infrastructure to support sustained growth. Unique technical problems led to the research and development of materials and designs which have achieved energy conversion efficiencies of up to 25% for electricity and 92% for heat in solar thermal systems. Overall, enough real progress has been made to provide a sound technology base upon which renewable energy systems industries can reasonably continue development.
Use Of Coal In Boilers Designed For Oil Or Gas, A. F. Havington
Use Of Coal In Boilers Designed For Oil Or Gas, A. F. Havington
Space Congress® Proceedings
This report discusses economic, technical and environmental considerations associated with the conversion to coal firing of utility boilers designed to burn oil or gas. Basic differences between oil and gas boilers and those designed for coal are outlined. Several technologies for utilizing coal in gas or oil units are introduced, along with associated economic and environmental concerns, and some current obstacles to conversion in the utility industry today are presented.
Future Commercial Communications Satellites For Shuttle Launch, Robert D. Briskman, Burton I. Edelson
Future Commercial Communications Satellites For Shuttle Launch, Robert D. Briskman, Burton I. Edelson
Space Congress® Proceedings
Commercial communications satellites have grown from infancy seventeen years ago to a major element of the spaceflight program. The paper describes the major commercial communications satellites and their development with emphasis on INTELSAT, United States and foreign domestic and MARISAT/INMARSAT. Future direct broadcast satellites and the possibilities for geostationary platforms are also discussed. These commercial communications satellites and their offsprings will constitute a stable, growing payload base for shuttle launches throughout this decade. It will be necessary that the costs of Shuttle launches remain economic so this payload base is not eroded by other launch vehicles.
Space Platform, Larry P. Morata, Marshall W. Novick
Space Platform, Larry P. Morata, Marshall W. Novick
Space Congress® Proceedings
The Space Platform (SP) will provide a cost effective long-term host vehicle for scientific and applications payloads beginning in the late 1980's. SP will take advantage of STS capabilities for delivery to orbit, assembly, check-out, maintenance and servicing. Services provided to multiple payloads include electrical power, heat rejection, attitude control and high-rate data handling communications. The system includes self-contained altitude maintenance and is designed for indefinite orbital operation.
MDAC and TRW are currently studying Space Platform for NASA/MSFC to develop optimum configurations for the eventual development-phase competition. Included in the study is development of plans for evolution into an eventual …
Late Paper: Payload Design Guidelines To Enhance Cargo Mixing On Space Shuttle Flights, John R. Bruce, Roger A. Chamberlain
Late Paper: Payload Design Guidelines To Enhance Cargo Mixing On Space Shuttle Flights, John R. Bruce, Roger A. Chamberlain
Space Congress® Proceedings
Payloads on Space Shuttle flights can be designed to enhance their potential to be integrated with other Shuttle payloads. Pertinent design guidelines have been identified in the areas of loads and dynamics, thermal and acoustic considerations, contamination, avionics and electromagnetic compatibility, ground processing and orbital operations. Consideration of these payload design guidelines throughout the design cycle can result in flight hardware with a high mixing potential. The resulting cargo manifesting flexibility provides earlier and more frequent flight opportunities for payloads, reduced costs, minimum post-design cycle modifications to accommodate cargo mixing and, ultimately, optimum utilization of the Space Shuttle.
The Expendable Vehicle And Satellite Development, Harry J. Masoni
The Expendable Vehicle And Satellite Development, Harry J. Masoni
Space Congress® Proceedings
The role of the expendable launch vehicle (ELV) in the development of satellite systems is explored. Essentially an outgrowth of the ballistic missile which was first used for military applications 4 decades ago, the ELV is used for a wide spectrum of peacetime applications including the launching of earth orbiting satellites which provide inter- and intra-national communications, large area photography for weather analysis and prediction, and high resolution imagery capability for earth resources evaluation. The launch constraints and considerations which the satellite designer must address are reviewed.
A survey of three payloads developed by Hughes Aircraft Company for launch by …
The Japanese Payloads For The N-Launch Vehicles, M. Hirai, T. Iwata
The Japanese Payloads For The N-Launch Vehicles, M. Hirai, T. Iwata
Space Congress® Proceedings
National Space Development Agency of Japan (NASDA), which was established in 1969 as the nucleus of the national space development effort, is promoting a variety of space projects in accordance with the Space Development Programs which are decided and revised annually by the Space Activities Commission in line with the basic space development plan authorized by the Prime Minister.
Since 1975, NASDA has launched the following satellites from Tanegashima Space Center: ETS-I (KIKU), ETS-II (KIKU-2), ISS-a (UME), ISS-b (UME-2), ECS-a (AYAME), ECS-b (AYAME-2), ETS-IV (KIKU-3) and GMS-2 (HIMAWARI-2). The launch vehicles for these satellites are the N-I and the N-II …
Phased Approach To The Space Operations Center, Allen J. Louviere
Phased Approach To The Space Operations Center, Allen J. Louviere
Space Congress® Proceedings
The Space Operations Center and the Space Manufacturing and Processes Systems have major characteristics of compatibility and can be mutually influential in formulating the next major space initiative. The Phase Program Plan of the SOC provides for increasing capabilities and can be integrated with a Space Manufacturing System's concept in which both the development and operational phases can be implemented. The requirements for the Space Manufacturing System appear to be suitable for SOC on-board development and then operationally as a tender of a free-flying satellite in a station-keeping orbit. The free-flying satellite can be placed in an orbit which hovers …
A Study In Motion Sickness: Saccular Hair Cells In The Adult Bullfrog., Glenn M. Cohen, Millard Reschke, Jerry Homick
A Study In Motion Sickness: Saccular Hair Cells In The Adult Bullfrog., Glenn M. Cohen, Millard Reschke, Jerry Homick
Space Congress® Proceedings
We examined the bullfrog's saccule using light and scanning electron microscopy. We found no evidence of a striola. Type A hair cells were not only distributed peripherally, but also throughout the central macula, though far less frequently than the dominant type D. We distinguished two primary hair cell types, which corresponded to the ciliary patterns: type A cilia are associated with short, conical hair cells, and type D cilia are associated with long, cylindrical hair cells. Each displays at least one subtype, which may represent developmental precursors. The otolithic membrane is crisscrossed with tunnels and topped with statoconia.
The Moon-Gateway To The Universe, Joseph A. Angelo
The Moon-Gateway To The Universe, Joseph A. Angelo
Space Congress® Proceedings
A decision to exploit the extraterrestrial frontier gives man an infinite physical and resource environment in which to continue human development and growth. The off-planet expansion of the human resource base will be highlighted by several key technology steps: (1) the development of reusable space transportation systems, such as the Space Shuttle; (2) the establishment of manned space stations; (3) the development of space-based industries; (4) the creation of lunar bases and permanent manned settlements; and (5) the full exploitation of lunar and possibly asteroid resources. The Moon and its potential role as man's gateway to the Universe is discussed. …
Meeting Minutes, Wku Student Government Association
Meeting Minutes, Wku Student Government Association
Student Government Association
Meeting regarding budget, student/faculty reception, dormitory lobby hours, opinion poll, international food tasting and encouraging Donald Zacharias to stay at WKU.
Resolution 81-12 - Grace Week, Wku Student Government Association
Resolution 81-12 - Grace Week, Wku Student Government Association
Student Government Association
Resolution requesting grace week between last week of classes and finals week.
Newsletter Vol. Iii, No. 6, Wku University Senate
Newsletter Vol. Iii, No. 6, Wku University Senate
Faculty Senate
Faculty Senate newsletter. This issue includes articles:
- Dorman, Ed & Sue Bryant. Senate Considers Varied Topics
- New Business
- Program Review
- Newly Elected Senators
Article - Colleges Advised They Need Not Declare 'Exigency' To Lay Off Tenured Professors, Robert Jacobson, Wku University Senate
Article - Colleges Advised They Need Not Declare 'Exigency' To Lay Off Tenured Professors, Robert Jacobson, Wku University Senate
Faculty Senate
Jacobson, Robert. "Colleges Advised They Need Not Declare 'Exigency' to Lay Off Tenured Professors," The Chronicle of Higher Education, Vol. XXIV, No. 3, March 17, 1982.
Meeting Minutes, Wku Student Government Association
Meeting Minutes, Wku Student Government Association
Student Government Association
Discussion of banquet, elections, Normal Drive curve and resolutions.
Traffic Control For Low-Volume Rural (Lvr) Roads, Bob L. Smith
Traffic Control For Low-Volume Rural (Lvr) Roads, Bob L. Smith
Purdue Road School
No abstract provided.
Comceptual Approach To Signing Principles In The 1982 Manual, Richard Larkin
Comceptual Approach To Signing Principles In The 1982 Manual, Richard Larkin
Purdue Road School
No abstract provided.