Digital Commons Network^™

The Role Of Individuals In International Humanitarian Law And Challenges For States In Its Development, Dieter Fleck

International Law Studies

No abstract provided.

The Development Of The Law Of Armed Conflict Through The Jurisprudence Of The International Criminal Tribunal For The Former Yugoslavia, William Fenrick

International Law Studies

No abstract provided.

Megatrends In The Use Of Force, Anthony D'Amato

International Law Studies

No abstract provided.

Rear Admiral Charles H. Stockton, The Naval War College, And The Law Of Naval Warfare, John Hattendorf

International Law Studies

No abstract provided.

Faculty Senate Meeting Minutes, 09/01/1998, P 158-160, Unm Faculty Senate

Faculty Senate Meeting Minutes, 1920 - 2013

No abstract provided.

Faculty Senate Meeting Minutes, 09/01/1998, P 161-202, Unm Faculty Senate

Faculty Senate Meeting Minutes, 1920 - 2013

No abstract provided.

The Bg News September 1, 1998, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. September 1, 1998. Volume 82-Issue 6.

The Sharp Sobolev Inequality And The Banchoff-Pohl Inequality On Surfaces, Ralph Howard

Faculty Publications

No abstract provided.

Validity And Norm Development For The Composite Examination Of Mental Status, Antoinette L. James

Theses and Dissertations

The Composite Exam of Mental Status (CEMS) is an instrument designed to screen patients for dementia and other cognitive impairments. This test is comprised of 12 subsections each requiring different cognitive abilities to complete. Areas assessed are Attention/Concentration, Orientation, Immediate Recall, Spontaneous Recall, Cued Recall, Naming, Verbal Fluency, Writing, Planning, Mental Flexibility, Construction and Abstract Reasoning.

The purpose of this study was to conduct concurrent validity analyses and initial norm development of the CEMS. The archival data for this study had been collected at 2 nursing homes in the upper midwest over a one year period. There were 168 (males …

As I Recall... September 1998, Lee County Medical Society

As I Recall Column

"As I Recall…" Column written by Dr. Roger D. Scott for the September 1998 Lee County Medical Society Bulletin newsletter. The entire Bulletin is included, but "As I Recall…" is on page 1 and 2.

Regulation Of Connexin43 By Phosphorylation In Heart Development, John C. Duncan

Loma Linda University Electronic Theses, Dissertations & Projects

Serine/threonine protein kinases have been shown to reversibly regulate cell-cell communication through gap junctions formed by connexin 43 (Cx43) (Godwin et al.7 1993). The Cx43 protein expression levels are unclear and what role phosphorylation plays in the regulation of signal transduction through these gap junctions during heart formation. Reportedly, mutations which replace potentially phosphorylatable serines within the Cx43 protein are associated with heart malformations (Britz-Cunningham et al.. 1995), highlighting the importance of determining the levels of Cx43 and the activities of PKA and PKC during heart development.

Western analysis performed on hearts from developmentally significant time points revealed principally high …

Undergraduates Arguing A Case, Susheela A. Varghese, Sunita A. Abraham

Research Collection Lee Kong Chian School Of Business

This essay describes an instructional study in which students were trained in two key aspects of argumentation, namely, the structural and interpersonal components. The structural aspects were taught and measured in terms of Toulmin's (1958) framework of argument analysis (i.e., the quality of claims, grounds and warrants used). The interpersonal aspects in turn were measured in terms of the creation of a clear persona, audience adaptiveness (the appropriate use of rational and emotional appeals), and stance towards the unique discourse of argumentation. Students performed a pre-instruction writing task, underwent eight weeks of explicit instruction in argumentation, then performed the task …

The Feasibility Of Launching Small Satellites With A Light Gas Gun, H. Gilreath, A. Driesman, W. Kroshl, M. White, H. Cartland, J. Hunter

Small Satellite Conference

This paper summarizes a study conducted for the Defense Advanced Research Projects Agency of the technical and economic feasibility of using a light gas gun to launch small satellites. The launcher concept is based upon a distributed-injection gun, which, in principle, can produce high muzzle velocities at relatively low acceleration levels. To establish initial system requirements for the launcher and spacecraft, the deployment of a large constellation of telecommunications satellites is chosen as a reference mission. This choice reflects the dominance of telecommunications in current commercial LEO market projections, but the results obtained for this mission are later generalized to …

Shuttle Hitchhiker Experiment Launcher System (Shels), Gerry Daelemans

Small Satellite Conference

NASA’s Goddard Space Flight Center Shuttle Small Payloads Project (SSPP), in partnership with the United States Air Force and NASA's Explorer Program, is developing a Shuttle based launch system called SHELS (Shuttle Hitchhiker Experiment Launcher System), which shall be capable of launching up to a 400 pound spacecraft from the Shuttle cargo bay. SHELS consists of a Marman band clamp push-plate ejection system mounted to a cast structure; the casted structure is mounted to one Orbiter sidewall adapter beam. Avionics mounted to a second adapter beam will interface with Orbiter electrical services and provide optional umbilical services and ejection circuitry. …

The Rockot Launch System, Peter Freeborn, Mark Kinnersley

Small Satellite Conference

EUROCKOT Launch Services GmbH has been founded by Daimler-Benz Aerospace of Germany and Khrunichev State Research and Production Space Center of Russia to offer world-wide cost effective launch services on the Rockot launch system. The Rockot commercial program is described. Rockot can launch satellites weighing up to 1850 kg into polar and other low earth (LEO) orbits. The Rockot launch vehicle is based on the former Russian SS-19 strategic missile. The first and second stages are inherited from the SS-19, the third stage named Breeze is newly developed and has multiple ignition capability. The Rockot launch system is flight proven. …

Development Of A Satellite Beacon Receiving Station, Carlos Niederstrasser

Small Satellite Conference

As part of its space operations research program, Stanford University's Space Systems Development Laboratory (SSDL) is implementing an automated state of health assessment and notification system for spacecraft. On board the spacecraft, this system consists of software that filters telemetry to derive a health assessment and a periodic beacon that broadcasts this assessment to the Earth. Throughout the world, a network of low cost receiving stations receive the beacon signal and relay it to a central mission control center via the Internet. This paper addresses the design and development of a beacon receiving station. Each station is designed to be …

Opus: A Flexible Pipeline Data Processing Environment, Daryl Swade, James Rose

Small Satellite Conference

OPUS is the automated pipeline processing environment developed at the Space Telescope Science Institute to handle the hundreds of exposures taken by the Hubble Space Telescope each day. This environment, however, is sufficiently generic to be applied to projects as diverse as large X-ray data reduction systems to small low-volume programs with an interest in "lights-out" operations. OPUS is briefly described in this paper which discusses its components, its applications, and its distribution. The OPUS baseline system is now available on CD-ROM for other projects to apply to their own pipeline requirements.

Vhf-Band Interference Avoidance For Next-Generation Small Satellites, J. Paffett, T.G. Jeans, J. Ward

Small Satellite Conference

The past decade has seen a dramatic increase in the number of satellites operating or proposing to operate within the VHF frequency band. Antennas, receivers and transmitters for both the ground and the space segment are readily available and inexpensive, whilst propagation conditions are very favourable. This allows communications to and from the satellite using low-cost omni-directional antenna based ground terminals. It is because of these attractions that many amateur and commercial satellites choose to operate within this band. Unfortunately, the attractions of the VHF band has also lead to one of its greatest disadvantages: overcrowding. Low Earth Orbit satellite …

An Integrated Payload Development And Operations System (Ipos) For Pi Class Missions, Gerald Murphy, Elaine Hansen

Small Satellite Conference

The IPOS approach recognizes that the real problems in achieving schedule, cost, and science return for PI class missions can only be dealt with by re-examining the basic architecture of payload and satellite systems. We must re-evaluate how they are built, integrated and operated. Reducing integration time and risk, lowering operations cost while increasing science return are absolutely necessary for today's new, low cost, fast turn-around missions. IPOS is systems engineered to match an innovative architecture with both an implementation methodology and enabling technologies. These are designed with recognition of the pitfalls that have historically been problems in satellite/payload integration, …

The Proba Ground Segment, A.J. Barrington Brown, A.K Ward, A. Wicks, M. Ilzkovitz

Small Satellite Conference

Space Innovations Limited (SIL) have developed a series of low-cost S-Band ground stations for use with low-Earth orbit satellites. The SGS-2.4 will be used for the ground segment being provided by SAS for ESA's PROBA (PRoject for On-Board Autonomy) satellite mission. It consists of a motorised 2.4m dish antenna, S-band feed with integral diplexer and low noise amplifier, up- and down-converters, variable data rate demodulator, sub-carrier generator and sweeper, high power amplifier (HPA) and an ESA/CCSDS packet standard packetiser/de-packetiser. Universal time is supplied via a GPS based time standard. All units are 19" rack mounted and are under the control …

Telemetry Data Reduction Workstation, Henry Weidman

Small Satellite Conference

STEP mission 4 needed a better system to allow engineers and mission operations people to view archived spacecraft telemetry data. TRW Spacecraft Operations East in Chantilly, Virginia responded with a PC-based system in a few weeks. Software refinements to the system continued for about two months. This paper outlines the design and implementation of that small satellite telemetry data reduction system which was designed for integration, test and on-orbit operations for the STEP Mission 4 spacecraft. The notable feature of this system is that it is composed of mostly COTS hardware and software which kept the system development cost low …

Jswitch/Jsat: Real-Time And Offiine World Wide Web Interface, Abigail Maury, Anna Critchfield, Jim Langston, Cynthia Adams

Small Satellite Conference

The Java-based spacecraft web interface to telemetry and command handling, Jswitch, is a prototype, platform-independent user interface to a spacecraft command and control system that uses Java technology, readily available security software, standard World Wide Web protocols, and commercial off-the-shelf (COTS) products. The Java-based science analysis and trending tool, Jsat, is a major element in Jswitch. Jsat is an inexpensive, Web-based, information-on-demand science data trend analysis tool. Both Jswitch and Jsat were developed in Java for NASA's Goddard Space Flight Center (GSFC). Jsat provides Web interface user access to science data from different satellites. Historically, satellite science data trend analysis …

The Implementation Of Satellite Attitude Control System Software Using Object Oriented Design , Mark Reid, William Hansell, Tom Phillips

Small Satellite Conference

NASA established the Small Explorer (SMEX) program in 1988 to provide frequent opportunities for highly focused and relatively inexpensive space science missions. The SMEX program has produced five satellites, three of which have been successfully launched. The remaining two spacecraft are scheduled for launch within the coming year. NASA has recently developed a prototype for the next generation Small Explorer spacecraft (SMEX-Lite). This paper describes the object-oriented design (OOD) of the SMEX-Lite Attitude Control System (ACS) software. The SMEX-Lite ACS is three-axis controlled and is capable of performing sub-arcminute pointing. This paper first describes high level requirements governing the SMEX-Lite …

Planar And Ferroelectric Antennas: Perspectives Of Use In Space Industry , V.F. Utkin, V.I. Loukjascbenko, G.G. Raikunov, A.V. Volkov, A.V. Loukjascbenko, V.P. Saltykov

Small Satellite Conference

This paper is devoted to the new technologies of antenna system miniaturization and those technology implementation in space telecommunication and Earth remote sensing systems - for spacecraft, ground terminals and stations. Nowadays, an ability to transmit data bulks, generated by onboard equipment, becomes one of the essential performance of satellite system specifications. The conventional ways to solve the said problem result in increase of the weight and sizes of an antenna system, increase of the requirements to a power supply system, decrease of the width of antenna pattern, etc. The backlog in the technology of planar (flat) phased antenna arrays …

A Remote I/O (Rio) Smart Sensor Analog-Digital Chip For Next Generation Spacecraft, Nick Paschalidis

Small Satellite Conference

The RIO Smart Sensor chip is APL's analog-digital, radiation-hardened, low-power, data acquisition device suitable for spacecraft and instrument data collection. The chip communicates over a standard serial I2C bus or a standard parallel bus. RIO, in its complete version, will measure temperatures using external thermistors, total ionizing dose using external radFETs, and voltages and currents. Its sensing capability can extend to other physical quantities such as photons, vibration, etc. A first version of this chip, is focusing on temperature measurements only (TRIO chip). TRIO measures 16 temperature channels using external platinum resistance thermometers (PRTs). It can also measure voltages only, …

On Campus, August 31, 1998, Coastal Carolina University

On Campus Newsletter

A Newsletter for Faculty and Staff of Coastal Carolina University. Volume 8, Number 13

A Resource Allocation Mechanism Based On Cost Function Synthesis In Complex Systems, Carlos C. Amaro

Dissertations

While the management of resources in computer systems can greatly impact the usefulness and integrity of the system, finding an optimal solution to the management problem is unfortunately NP hard. Adding to the complexity, today's 'modern' systems - such as in multimedia, medical, and military systems - may be, and often are, comprised of interacting real and non-real-time components. In addition, these systems can be driven by a host of non-functional objectives – often differing not only in nature, importance, and form, but also in dimensional units and range, and themselves interacting in complex ways. We refer to systems exhibiting …

A Folder Organization Model For Information Systems : Exploring Its Architectural Expressive Power And Predicate-Based Filing, Simon Doong

Dissertations

This dissertation presents an Internal Folder Organization (I-ORG) which supplements the architectural deficiencies of the existing model - the User Folder Organization (U-ORG), to electronically model a person's filing system in the modern office environment. An I-ORG folder organization gives a logical representation of how documents of the same or different kinds are related and grouped into folders based on predefined premises. Our model is represented by a Rooted Direct Acyclic Graph (RDAG). Each node in the graph represents a folder; and folders are related by "subfolder relationship" (for capturing the "and" relation) and "virtual-folder relationship" (for capturing the "or" …

A Graph Based Process Model Measurement Framework Using Scheduling Theory, Gary Guang-Li Mou

Dissertations

Software development processes, as a means of ensuring software quality and productivity, have been widely accepted within the software development community; software process modeling, on the other hand, continues to be a subject of interest in the research community. Even with organizations that have achieved higher SEI maturity levels, processes are by and large described in documents and reinforced as guidelines or laws governing software development activities. The lack of industry-wide adaptation of software process modeling as part of development activities can be attributed to two major reasons: lack of forecast power in the (software) process modeling and lack of …

Automatic Analysis Of Electronic Drawings Using Neural Network, Yi Shi

Dissertations

Neural network technique has been found to be a powerful tool in pattern recognition. It captures associations or discovers regularities with a set of patterns, where the types, number of variables or diversity of the data are very great, the relationships between variables are vaguely understood, or the relationships are difficult to describe adequately with conventional approaches.

In this dissertation, which is related to the research and the system design aiming at recognizing the digital gate symbols and characters in electronic drawings, we have proposed: (1) A modified Kohonen neural network with a shift-invariant capability in pattern recognition; (2) An …