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1

Iryo fukushi kiki gijutsu kenkyu kaihatsu 1994 nendo seika hokokusho. Shokudo hassei hojo sochi. (Report on fiscal 1994 results of the research and development of medical welfare equipment technology. Esophagus speech aiding system).  

National Technical Information Service (NTIS)

For the purpose of developing the esophagus speech aid system, the paper studied a voice pickup method, speech signal processing technology, exclusive IC, speech analyzer for esophagus speech, and technology to improve convenience of system users. To deve...

1995-01-01

2

FAIVRE D'ARCIER B. (2003), Urban Transport in France : Moving to a Sustainable Policy, published in japanese in Senshu daigaku shakai kagaku kenkyu geppo n481  

E-print Network

in the middle of 70's, many projects of right-of-way transport system are now implemented in order to create to contain congestion by developing public transport (PT) supply. But the PT market share remains low ways. To illustrate this new orientation, a brief description of the evolution of urban transport

Paris-Sud XI, Université de

3

systems  

Microsoft Academic Search

Empirical observations often indicate that complexity enhances stability, while most theoretical studies, such as May's (1972) classic paper, point to the opposite. Despite the wide generality of these latter theoretical analyses, our examination of the well-known competitive Lotka-Volterra system reveals that increasing complexity (measured in terms of connectance) can enhance species coexistence and persistence in model communities (measured in terms

Ian D. Rozdilsky; Lewi Stone

4

System  

NASA Astrophysics Data System (ADS)

Molecular dynamics simulations were carried out to investigate the anionic structures of the molten CaO-SiO2-P2O5 system. The results show that the average first nearest-neighbor distances for Si-O and P-O pairs are 1.61 and 1.53 Å, respectively. As expected, above 98 pct P and 95 pct Si show fourfold coordination and form tetrahedral structures. Due to the high basicity, nonbridging oxygen occupies a predominant position in Si and P tetrahedron. Based on the oxygen number of different types, the structures of both Si and P tetrahedron were classified as Q 0, Q 1, Q 2, Q 3, and Q 4, where the superscript referred to the number of bridging oxygen atoms. With the substitution of P2O5 for SiO2, Q 0 decreased and other type of Q i units increased. For Si tetrahedron, Q 2 and Q 3 show most notable change, for P tetrahedron, Q 1and Q 2 show the most notable change. The change of Q i units for Si tetrahedron is larger than that for P tetrahedron. The concentration of free oxygen decreases remarkably with the increase of P2O5 content. The Si-O-P linkage is energetically more favorable than Si-O-Si and P-O-P linkages. P ion has a tendency to promote the polymerization of phosphosilicate melts.

Diao, Jiang; Fan, Guozheng; Liu, Xuan; Xie, Bing

2014-10-01

5

Ethnography for Teachers' Professional Development: Japanese Approach of Investigation on Classroom Activities  

ERIC Educational Resources Information Center

In this paper, we examine how journal and ethnography field notes in Jugyou Kenkyu (lesson study) help teachers to understand the diverse range of talents and abilities of their students. Especially, we focus on how ethnography field note and reflective papers (karate) help teachers to change their assumptions about student learning. The data…

Matoba, Masami; Sarkar Arani Mohammed Reza

2006-01-01

6

IEEE TRANSACTIONS ON INFORMATION THEORY, VOL. 47, NO. 6, SEPTEMBER 2001 2579 Part 3) of our Main Theorem is obtained from the next result.  

E-print Network

, pp. 3683­3689, 1992. [2] S. Kondo and H. Momiyama, "Automorphism group of Hermitian code C over GF(4)," Gakujutsu Kenkyu, vol. 49, pp. 17­23, 2001. School of Education, Waseda University, Tokyo, Japan. [3] J. H. Inform. Theory, vol. IT-33, pp. 305­309, May 1987. [4] D. J. S. Robinson, A Course in the Theory

Siegel, Paul H.

7

Library System Library System  

E-print Network

Library System #12;Library System 5150 Anthony Wayne Drive David Adamany Undergraduate Library that for the current fiscal year, we've been given an additional $600,000 for our library materials budget. We're very subscriptions. The Wayne State University Libraries are deeply committed to providing our faculty and students

Cinabro, David

8

1995 nendo kankyo gijutsu sogo kenkyu kyoryoku. (Comprehensive research cooperation in environmental technology in fiscal 1995).  

National Technical Information Service (NTIS)

Cooperative study was conducted on research subjects concerning water pollution preventive technologies in China and Thailand. In China, straw pulp mills were studied which were in the Institute of Light Industry Environmental Protection and the Environme...

1996-01-01

9

Solar system positioning system  

NASA Technical Reports Server (NTRS)

Power-rich spacecraft envisioned in Prometheus initiative open up possibilities for long-range high-rate communication. A constellation of spacecraft on orbits several A.U. from the Sun, equipped with laser transponders and precise clocks can be configured to measure their mutual distances to within few cm. High on-board power can create substantial non-inertial contribution to the spacecraft trajectory. We propose to alleviate this contribution by employing secondary ranging to a passive daughter spacecraft. Such constellation can form the basis of it navigation system capable of providing position information anywhere in the soIar system with similar accuracy. Apart from obvious Solar System exploration implications, this system can provide robust reference for GPS and its successors.

Penanen, Konstantin I.; Chui, Talso

2006-01-01

10

SYSTEMS BIOM BIOMEDICAL SYSTEMS,  

E-print Network

exercise studies under normal and diseased conditions. Cellular metabolic changes are quantitatively of heart disease. Therapeutic strategies are developed related to biomechanical, vascular, muscular control systems, human locomotion, and exercise to reduce loss of musculoskeletal function

Rollins, Andrew M.

11

Systems autonomy  

NASA Technical Reports Server (NTRS)

Information on systems autonomy is given in viewgraph form. Information is given on space systems integration, intelligent autonomous systems, automated systems for in-flight mission operations, the Systems Autonomy Demonstration Project on the Space Station Thermal Control System, the architecture of an autonomous intelligent system, artificial intelligence research issues, machine learning, and real-time image processing.

Lum, Henry, Jr.

1988-01-01

12

Systems Analysis Systems Integration  

E-print Network

to H2 not straightforward Exploratory research is essential Extensive R&D needed Issues: Economic any previously undertaken by DOE in civilian energy Systems Analysis essential guidance / perspective include coal liquids, shale oil & biomass. #12;7 OPTIONS FOR FUTURE U.S. ENERGY - MY VIEW Coal

13

Operating Systems.  

ERIC Educational Resources Information Center

A computer operating system spans multiple layers of complexity, from commands entered at a keyboard to the details of electronic switching. In addition, the system is organized as a hierarchy of abstractions. Various parts of such a system and system dynamics (using the Unix operating system as an example) are described. (JN)

Denning, Peter J.; Brown, Robert L.

1984-01-01

14

Mechanical Systems  

NASA Technical Reports Server (NTRS)

The presentation provides an overview of requirement and interpretation letters, mechanical systems safety interpretation letter, design and verification provisions, and mechanical systems verification plan.

Davis, Robert E.

2002-01-01

15

Operating Systems  

NSDL National Science Digital Library

CSC 342. Operating Systems (3) Prerequisite: CSC 332. Study of supervisory programs. System services and file systems; CPU scheduling; memory management; virtual memory; disk scheduling. Deadlock characterization, prevention, and avoidance; concurrent processes; semaphores; critical sections; synchronization. Distributed systems and communication protocols.

Ferner, Clayton

2003-04-21

16

Fluid Management System (FMS) fluid systems overview  

NASA Technical Reports Server (NTRS)

Viewgraphs on fluid management system (FMS) fluid systems overview are presented. Topics addressed include: fluid management system description including system requirements (integrated nitrogen system, integrated water system, and integrated waste gas system) and physical description; and fluid management system evolution.

Baird, R. S.

1990-01-01

17

Cardiovascular system  

MedlinePLUS Videos and Cool Tools

The cardiovascular system is composed of the heart and the network of arteries, veins, and capillaries that transport blood throughout the ... carries waste products from the tissues to the systems of the body through which they are eliminated. ...

18

Expert systems and fuzzy systems  

SciTech Connect

This book examines the design of the expert computer system and how fuzzy systems can be used to deal with imprecise information. As the author explores the effects of semantic systems on decision support systems, he asserts that the utilization of fuzzy set theory can help an expert system draw from its knowledge base more efficiently and therefore make more accurate and reliable decisions. The book includes realistic status reports in approximate reasoning and knowledge representation that are supported by a ''theory of categories'' mathematical approach. The differences between symbolic and semantic manipulation are outline, and detailed information is given on the actual theory of knowledge-based systems.

Negoita, C.

1985-01-01

19

System Effectiveness  

SciTech Connect

An effective risk assessment system is needed to address the threat posed by an active or passive insider who, acting alone or in collusion, could attempt diversion or theft of nuclear material. It is critical that a nuclear facility conduct a thorough self-assessment of the material protection, control, and accountability (MPC&A) system to evaluate system effectiveness. Self-assessment involves vulnerability analysis and performance testing of the MPC&A system. The process should lead to confirmation that mitigating features of the system effectively minimize the threat, or it could lead to the conclusion that system improvements or upgrades are necessary to achieve acceptable protection against the threat. Analysis of the MPC&A system is necessary to understand the limits and vulnerabilities of the system to internal threats. Self-assessment helps the facility be prepared to respond to internal threats and reduce the risk of theft or diversion of nuclear material. MSET is a self-assessment or inspection tool utilizing probabilistic risk assessment (PRA) methodology to calculate the system effectiveness of a nuclear facility's MPC&A system. MSET analyzes the effectiveness of an MPC&A system based on defined performance metrics for MPC&A functions based on U.S. and international best practices and regulations. A facility's MC&A system can be evaluated at a point in time and reevaluated after upgrades are implemented or after other system changes occur. The total system or specific subareas within the system can be evaluated. Areas of potential performance improvement or system upgrade can be assessed to determine where the most beneficial and cost-effective improvements should be made. Analyses of risk importance factors show that sustainability is essential for optimal performance. The analyses reveal where performance degradation has the greatest detrimental impact on total system risk and where performance improvements have the greatest reduction in system risk. The risk importance factors show the amount of risk reduction achievable with potential upgrades and the amount of risk reduction actually achieved after upgrades are completed. Applying the risk assessment tool gives support to budget prioritization by showing where budget support levels must be sustained for MC&A functions most important to risk. Results of the risk assessment are also useful in supporting funding justifications for system improvements that significantly reduce system risk.

Powell, Danny H [ORNL] [ORNL; Elwood Jr, Robert H [ORNL] [ORNL

2011-01-01

20

Microfluidic Systems Integrated Microfluidic Systems**  

E-print Network

Microfluidic Systems Integrated Microfluidic Systems** Rustem F. Ismagilov* Keywords: analytical methods · enzymes · microfluidics · microreactors · protein structures Microfluidic systems use networks of channels thinner than a human hair to manipulate nanoliter volumes of re- agents. The goal of microfluidics

Ismagilov, Rustem F.

21

Operating Systems  

NSDL National Science Digital Library

Rashid Bin Muhammad at Kent State University presents his page of lectures notes and other instructional materials on operating systems. The site is divided into a number of topics about operating systems: history, structure, process, threads, Solaris-2, CPU / process scheduling, schedule algorithm, interprocess communication, deadlock, important UNIX commands, and references. The site is then followed by links to outside resources to help supplement the material presented here. This is a great resource for computer science instructors teaching students about operating systems.

Bin Muhammad, Rashid

2009-06-24

22

Anticipatory systems as linguistic systems  

NASA Astrophysics Data System (ADS)

The idea of system is well established although not well defined. What makes up a system depends on the observer. Thinking in terms of systems is only a convenient way to conceptualize organizations, natural or artificial, that show coherent properties. Among all properties, which can be ascribed to systems, one property seems to be more outstanding than others, namely that of being anticipatory. In nature, anticipatory properties are found only in living organizations. In this way it can be said to separate non-living systems from living because there is no indication that any natural phenomenon occurring in systems where there is no indication of life is anticipatory. The characteristic of living systems is that they are exposed to the evolution contrary to causal systems that do not undergo changes due to the influence of the environment. Causal systems are related to the past in such a way that subsequent situations can be calculated from knowledge of past situations. In causal systems the past is the cause of the present and there is no reference to the future as a determining agent, contrary to anticipatory systems where expectations are the cause of the present action. Since anticipatory properties are characteristic of living systems, this property, as all other properties in living systems, is a result of the evolution and can be found in plants as well as in animals. Thus, it is not only tied to consciousness but is found at a more basic level, i.e., in the interplay between genotype and phenotype. Anticipation is part of the genetic language in such a way that appropriate actions, for events in the anticipatory systems environment, are inscribed in the genes. Anticipatory behavior, as a result of the interpretation of the genetic language, has been selected by the evolution. In this paper anticipatory systems are regarded as linguistic systems and I argue that as such anticipation cannot be fragmented but must be holistically studied. This has the implication that anticipatory behavior can only partially be described in a computer language and, furthermore, it shows that only a restricted class of anticipatory systems can be transferred to computers.

Ekdahl, Bertil

2000-05-01

23

ECONOMIC SYSTEMS  

NSDL National Science Digital Library

The information you will explore is: List and categorize the four main types of Economic Systems in our world today. Create graphic Illustrations of thoughts and concepts. Express how economic system structures effect the lives of the people living in that system. Write to express an opinion or point of view. Experience a simulation of the marketplace. Research a country of your choice and find important factors about their economic system. Each country structures their economic system after one of the four main types or a combination of these. The assignments on this page will help you to gain a better understanding of the characteristics of the four main types of economic systems. Process: 1. Click on the following link Marketing Calendar Open the Global Economy power point. Use the Chapter 4 listening guide with the power point. chap4 listening guide 2. List the four main economic systems and find the main characterisitics of each. Compare strengths and weaknesses of each. Economic Systems Characteristics 3.Create a ...

Mrs.owen

2006-10-10

24

Digestive System  

NSDL National Science Digital Library

The digestive system is investigated in this learning activity to help participants learn how food is broken down and prepared for absorption, and list the components of the digestive system as well as their functions. Organs investigated include the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus.

Bidlack, Jim

25

Multimedia Systems  

NSDL National Science Digital Library

CSC 304. Multimedia Systems (3) Prerequisite: CSC 121. Introduction to technologies of the Internet and networked multimedia systems. Issues in web page design; Internet client/server programming; collaborative computing and group work; network publishing; security and encryption; audio and video compression; ethical issues and privacy; e-commerce; and distributed object computing. Open only to students of junior or senior standing.

Patterson, Ms L.

2003-04-21

26

Power system  

DOEpatents

A power system includes a prime mover, a transmission, and a fluid coupler having a selectively engageable lockup clutch. The fluid coupler may be drivingly connected between the prime mover and the transmission. Additionally, the power system may include a motor/generator drivingly connected to at least one of the prime mover and the transmission. The power-system may also include power-system controls configured to execute a control method. The control method may include selecting one of a plurality of modes of operation of the power system. Additionally, the control method may include controlling the operating state of the lockup clutch dependent upon the mode of operation selected. The control method may also include controlling the operating state of the motor/generator dependent upon the mode of operation selected.

Hickam, Christopher Dale (Glasford, IL)

2008-03-18

27

System Toolbox  

NSDL National Science Digital Library

System Toolbox is designed for system administrators who deal with a variety of platforms. The site covers Windows NT, General Unix, Novell, Linux, Solaris, HP-UX, and the Mac OS. The "toolbox" for each platform offers annotated links to Tools (Disk Management, Anti-Virus, Security, etc.), Articles, and other useful Links. While the information here is hardly comprehensive, the site offers useful, if often basic, resources for administrators. System Toolbox's brand new History section looks promising, with two articles currently posted, "Von Braun's Slide Rule" and "The Godfather of Computing - Charles Babbage." The Comments section allows users to post questions or comments.

2001-01-01

28

Systems and Components Fuel Delivery System, Water Delivery System, ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Systems and Components - Fuel Delivery System, Water Delivery System, Derrick Crane System, and Crane System Details - Marshall Space Flight Center, F-1 Engine Static Test Stand, On Route 565 between Huntsville and Decatur , Huntsville, Madison County, AL

29

Respiratory System  

NSDL National Science Digital Library

The purpose, components, and functions of the respiratory system are presented in this learning through disussion and visualizations. Participants learn about the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli.

Bidlack, Jim

30

Respiratory system  

NASA Technical Reports Server (NTRS)

The general anatomy and function of the human respiratory system is summarized. Breathing movements, control of breathing, lung volumes and capacities, mechanical relations, and factors relevant to respiratory support and equipment design are discussed.

Bartlett, R. G., Jr.

1973-01-01

31

Digestive System  

MedlinePLUS

... of the immune system to a protein called gluten, which is found in wheat, rye, and barley ... and even depression when they eat foods with gluten. Symptoms can be managed by following a gluten- ...

32

Digestive System  

MedlinePLUS

... of the immune system to a protein called gluten, which is found in certain foods. People with ... nutrients from their food because eating things with gluten damages the lining of the intestines over time. ...

33

Systems Vaccinology  

PubMed Central

Vaccination is one of the greatest triumphs of modern medicine, yet we remain largely ignorant of the mechanisms by which successful vaccines stimulate protective immunity. Two recent advances are beginning to illuminate such mechanisms: realization of the pivotal role of the innate immune system in sensing microbes and stimulating adaptive immunity, and advances in systems biology. Recent studies have used systems biology approaches to obtain a global picture of the immune responses to vaccination in humans. This has enabled the identification of early innate signatures that predict the immunogenicity of vaccines, and identification of potentially novel mechanisms of immune regulation. Here we review these advances, and critically examine the potential opportunities and challenges posed by systems biology in vaccine development. PMID:21029962

Pulendran, Bali; Li, Shuzhao; Nakaya, Helder I

2010-01-01

34

Earth Systems  

NSDL National Science Digital Library

This self-contained module on Earth systems includes a range of fun activities that students can perform in the classroom and at home with family members. They impart important concepts such as observation, identification, measurement, and differentiation.

Science, Houghton M.

35

Fueling systems  

SciTech Connect

This report deals with concepts of the Tiber II tokamak reactor fueling systems. Contained in this report are the fuel injection requirement data, startup fueling requirements, intermediate range fueling requirements, power range fueling requirements and research and development considerations. (LSR)

Gorker, G.E.

1987-01-01

36

Microelectromechanical Systems  

NASA Technical Reports Server (NTRS)

Micro-electromechanical systems (MEMS) is an enabling technology that merges computation and communication with sensing and actuation to change the way people and machines interact with the physical world. MEMS is a manufacturing technology that will impact widespread applications including: miniature inertial measurement measurement units for competent munitions and personal navigation; distributed unattended sensors; mass data storage devices; miniature analytical instruments; embedded pressure sensors; non-invasive biomedical sensors; fiber-optics components and networks; distributed aerodynamic control; and on-demand structural strength. The long term goal of ARPA's MEMS program is to merge information processing with sensing and actuation to realize new systems and strategies for both perceiving and controlling systems, processes, and the environment. The MEMS program has three major thrusts: advanced devices and processes, system design, and infrastructure.

Gabriel, Kaigham J.

1995-01-01

37

Immune System  

MedlinePLUS

... New Scientists Identify Important Genetic Changes in 21 Autoimmune Diseases —Oct. 29, 2014 New Regulator of Autoimmune Cells ... 26, 2014 All Immune System News Releases All Autoimmune Diseases News Releases All Primary Immune Deficiency Disease News ...

38

Systemic Mastocytosis  

Microsoft Academic Search

Mastocytosis is a term used for a group of disorders defined by an abnormal accumulation of mast cells (MCs) in one or more\\u000a organ systems. Clinical symptoms result from MC-derived mediators and\\/or from infiltration of MCs in the tissues. Cutaneous\\u000a mastocytosis (CM) is a benign disease of the skin and often regresses spontaneously. Systemic mastocytosis (SM) is a persistent\\u000a clonal

Peter Valent

39

Mechanical Systems  

Microsoft Academic Search

\\u000a In this chapter, several different control applications for mechanical systems are examined. The first system discussed is\\u000a an autobalancing application. A perfectly balanced rotating object (i.e., the center of geometry and center of mass are coincident)\\u000a will usually not undergo any vibration. However, due to the errors associated with geometric dimensions and the nonhomogeneity\\u000a of the raw material, the construction

Warren E. Dixon; Aman Behal; Darren M. Dawson; Siddharth P. Nagarkatti

40

Digestive System  

NSDL National Science Digital Library

The digestive system is amazing: it takes the foods we eat and breaks them into smaller components that our bodies can use for energy, cell repair and growth. This lesson introduces students to the main parts of the digestive system and how they interact. In addition, students learn about some of the challenges astronauts face when eating in outer space. Engineers figure out how to deal with such challenges.

Integrated Teaching And Learning Program

41

Technological Issues and High Gradient Test Results on X-Band Molybdenum Accelerating Structures  

SciTech Connect

Two 11.424 GHz single cell standing wave accelerating structures have been fabricated for high gradient RF breakdown studies. Both are brazed structures: one made from copper and the other from sintered molybdenum bulk. The tests results are presented and compared to those of similar devices constructed at SLAC (Stanford Linear Accelerator Center) and KEK (Ko Enerugi Kasokuki Kenkyu Kiko). The technological issues to build both sections are discussed.

Spataro, B.; /LNF, Dafne Light; Alesini, D.; /LNF, Dafne Light; Chimenti, V.; /LNF, Dafne Light; Dolgashev, V.; /SLAC; Haase, A.; /SLAC; Tantawi, S.G.; /SLAC; Higashi, Y.; /KEK, Tsukuba; Marrelli, C.; /Rome U.; Mostacci, A.; /Rome U.; Parodi, R.; /INFN, Genoa; Yeremian, A.D.; /SLAC

2012-04-24

42

Systems Studies  

SciTech Connect

The Systems Studies Activity had two objectives: (1) to investigate nontechnical barriers to the deployment of biomass production and supply systems and (2) to enhance and extend existing systems models of bioenergy supply and use. For the first objective, the Activity focused on existing bioenergy markets. Four projects were undertaken: a comparative analysis of bioenergy in Sweden and Austria; a one-day workshop on nontechnical barriers jointly supported by the Production Systems Activity; the development and testing of a framework for analyzing barriers and drivers to bioenergy markets; and surveys of wood pellet users in Sweden, Austria and the US. For the second objective, two projects were undertaken. First, the Activity worked with the Integrated BioEnergy Systems (TBS) Activity of TEA Bioenergy Task XIII to enhance the BioEnergy Assessment Model (BEAM). This model is documented in the final report of the IBS Activity. The Systems Studies Activity contributed to enhancing the feedstock portion of the model by developing a coherent set of willow, poplar, and switchgrass production modules relevant to both the US and the UK. The Activity also developed a pretreatment module for switchgrass. Second, the Activity sponsored a three-day workshop on modeling bioenergy systems with the objectives of providing an overview of the types of models used to evaluate bioenergy and promoting communication among bioenergy modelers. There were nine guest speakers addressing different types of models used to evaluate different aspects of bioenergy, ranging from technoeconomic models based on the ASPEN software to linear programming models to develop feedstock supply curves for the US. The papers from this workshop have been submitted to Biomass and Bioenergy and are under editorial review.

Graham, R.L.

1998-03-17

43

Systemic trauma.  

PubMed

Substantial theoretical, empirical, and clinical work examines trauma as it relates to individual victims and perpetrators. As trauma professionals, it is necessary to acknowledge facets of institutions, cultures, and communities that contribute to trauma and subsequent outcomes. Systemic trauma-contextual features of environments and institutions that give rise to trauma, maintain it, and impact posttraumatic responses-provides a framework for considering the full range of traumatic phenomena. The current issue of the Journal of Trauma & Dissociation is composed of articles that incorporate systemic approaches to trauma. This perspective extends conceptualizations of trauma to consider the influence of environments such as schools and universities, churches and other religious institutions, the military, workplace settings, hospitals, jails, and prisons; agencies and systems such as police, foster care, immigration, federal assistance, disaster management, and the media; conflicts involving war, torture, terrorism, and refugees; dynamics of racism, sexism, discrimination, bullying, and homophobia; and issues pertaining to conceptualizations, measurement, methodology, teaching, and intervention. Although it may be challenging to expand psychological and psychiatric paradigms of trauma, a systemic trauma perspective is necessary on both scientific and ethical grounds. Furthermore, a systemic trauma perspective reflects current approaches in the fields of global health, nursing, social work, and human rights. Empirical investigations and intervention science informed by this paradigm have the potential to advance scientific inquiry, lower the incidence of a broader range of traumatic experiences, and help to alleviate personal and societal suffering. PMID:24617751

Goldsmith, Rachel E; Martin, Christina Gamache; Smith, Carly Parnitzke

2014-01-01

44

Robotic System  

NASA Technical Reports Server (NTRS)

A complicated design project, successfully carried out by New York manufacturing consultant with help from NERAC, Inc., resulted in new type robotic system being marketed for industrial use. Consultant Robert Price, operating at E.S.I, Inc. in Albany, NY, sought help from NERAC to develop an automated tool for deburring the inside of 8 inch breech ring assemblies for howitzers produced by Watervliet Arsenal. NERAC conducted a search of the NASA data base and six others. From information supplied, Price designed a system consisting of a standard industrial robot arm, with a specially engineered six-axis deburring tool fitted to it. A microcomputer and computer program direct the tool on its path through the breech ring. E.S.I. markets the system to aerospace and metal cutting industries for deburring, drilling, routing and refining machined parts.

1984-01-01

45

Manufacturing Systems  

NSDL National Science Digital Library

Objective 7:05 - Students will develop an awareness of the designed World through : Describing a manufacturing system; listing and describing the basic type of manufacturing; defining production and manufacturing enterprise;defining AGV, CAD, CIM, CAM, CNC, production tooling, automation, and material processes. Day 1: Introduction/Background Objective Preassessment: Use a KWL chart to assess your students prior knowledge. This will also help you deal with any misconceptions regarding manufacturing system. Students will use the curriculum companion PowerPoint and Objective 7.05 Outline to develop an awarness of: Define manufacturing List and describe the basic types of Manufacturing Student ...

Wallace, S.

2010-07-16

46

Solar System  

NSDL National Science Digital Library

This site is part of the space page of the British Broadcasting Corporation (BBC), and provides information about the Sun, the planets and their moons, and other bodies in the solar system. It contains a travel guide to the Solar System including such topics as what to see, reason to visit, how to get there, and local history. A similar travel guide is then available for the Sun, each of the planets, asteroids, and comets. In addition, multiple links for more detailed information as well as space games and puzzles are provided.

2007-12-12

47

Neuromodulatory systems  

PubMed Central

We examine the interactions and interdependencies between Neuroglia, the Brain-Cell Microenvironment, and the processes commonly subsumed under Neuromodulation. The interactions of the component processes covering a wide spectrum of frequencies are designated as Neuromodulatory Systems (NMS). This implies NMS's scale-invariance as the capacity of linking actions across many time scales, and self-similarity at any scale. These features endow NMS with the ability to respond adaptively to neural impulse traffic of an unpredictably wide frequency spectrum. In this preliminary perspective, the components of NMS are only outlined based on concepts of Complex Systems Dynamics. However, their interactions must be formally elaborated in further investigations. PMID:23532509

Werner, Gerhard; Mitterauer, Bernhard J.

2013-01-01

48

Systemic mastocytosis.  

PubMed

An unusual disease, mastocytosis challenges the pathologist with a variety of morphologic appearances and heterogeneous clinical presentations ranging from skin manifestations (pruritus, urticaria, dermatographism) to systemic signs and symptoms indicative of mast cell mediator release, including flushing, hypotension, headache, and anaphylaxis among others. In this article, we focus on recognizing the cytology, histopathology, clinical features, and prognostic implications of systemic mastocytosis, a clonal and neoplastic mast cell proliferation infiltrating extracutaneous organ(s) with or without skin involvement. Diagnostic pitfalls are reviewed with ancillary studies to help unmask the mast cell and exclude morphologic mimics. PMID:22054735

George, Tracy I; Horny, Hans-Peter

2011-10-01

49

Branching Systems  

NASA Astrophysics Data System (ADS)

For a digraph G = (V, E) with a specified subset R(j) of V, its nodes, a branching B(j) rooted at R(j) is a forest in G such that for each node u in V - R(j) there is exactly one edge of B(j) entering u. A branching system B = [B(j): j ? J] is a collection of edge-disjoint branchings, with specified root-sets, in G. Given costs c(i) on the edges i of G, and given root sets R(j), we survey the use of matroids to find a least cost branching system, B.

Edmonds, Jack

50

Computer systems  

NASA Technical Reports Server (NTRS)

In addition to the discussions, Ocean Climate Data Workshop hosts gave participants an opportunity to hear about, see, and test for themselves some of the latest computer tools now available for those studying climate change and the oceans. Six speakers described computer systems and their functions. The introductory talks were followed by demonstrations to small groups of participants and some opportunities for participants to get hands-on experience. After this familiarization period, attendees were invited to return during the course of the Workshop and have one-on-one discussions and further hands-on experience with these systems. Brief summaries or abstracts of introductory presentations are addressed.

Olsen, Lola

1992-01-01

51

Complex Systems  

PubMed Central

Physiologic systems in health and disease display an extraordinary range of temporal behaviors and structural patterns that defy understanding based on linear constructs, reductionist strategies, and classical homeostasis. Application of concepts and computational tools derived from the contemporary study of complex systems, including nonlinear dynamics, fractals and “chaos theory,” is having an increasing impact on biology and medicine. This presentation provides a brief overview of an emerging area of biomedical research, including recent applications to cardiopulmonary medicine and chronic obstructive lung disease. PMID:16921107

Goldberger, Ary L.

2006-01-01

52

Nanoelectromechanical Systems  

E-print Network

Nanoelectromechanical systems (NEMS) are nano-to-micrometer scale mechanical resonators coupled to electronic devices of similar dimensions. NEMS show promise for fast, ultrasensitive force microscopy and for deepening our understanding of how classical dynamics arises by approximation to quantum dynamics. This article begins with a survey of NEMS and then describes certain aspects of their classical dynamics. In particular, we show that for weak coupling the action of the electronic device on the mechanical resonator can be effectively that of a thermal bath, this despite the device being a driven, far-from-equilibrium system.

M. P. Blencowe

2005-02-24

53

Koon Sonsho Seigyo to Jumyo Enchoka Ni Kansuru Kenkyu (Study on High Temperature Damage Control and Life Improvement).  

National Technical Information Service (NTIS)

Fundamental research was conducted with the purpose of improving the life of heat resisting steel by reducing the occurrence of high temperature damage as well as by recovering from the caused damage. Intergranular creep cavities and surface cracks were s...

N. Shinya, S. Ikeda, J. Kyono, R. Horiuchi, H. Tanaka

1993-01-01

54

Genome joho kaidoku riyo gijutsu no chosa kenkyu. (Research study on analysis/use technologies of genome information).  

National Technical Information Service (NTIS)

For wide use of genome information in the industrial field, the required R and D was surveyed from the standpoints of biology and information science. To clarify the present state and issues of the international research on genome analysis, the genome map...

1997-01-01

55

Digestive System  

NSDL National Science Digital Library

This site contains a section of an online Biology Textbook - developed by Dr. Michael Gregory of Clinton Community College - providing a concise overview of the digestive system. It describes the enzymes, carbohydrates, proteins, and lipids involved in digestion and outlines the role that each part of the body plays from the mouth the large intestine.

Gregory, Michael

1969-12-31

56

D System  

NSDL National Science Digital Library

D-System is conducting research into program analysis, code generation, and programming tools for data-parallel languages like High Performance Fortran. If this research is successful, computational scientists and engineers will be able to write machine-independent, data-parallel programs for a broad spectrum of scientific applications, and achieve high performance with these programs on a variety of parallel architectures.

57

Embedded Systems  

NSDL National Science Digital Library

The April 2003 issue of ACM Queue, the online magazine of the Association for Computing Machinery, is dedicated to embedded systems. Seven articles are included in the issue, dealing with the design and construction process of embedded devices, programming, and the hardware/software interface.

2008-02-08

58

Manufacturing Systems  

NASA Technical Reports Server (NTRS)

Advanced Process Systems designed a portable purge unit for NASA use. The unit is designed to protect flight and ground crews from toxic fumes and to provide a post-landing controlled environment for sensitive electronic equipment. Although the work has future spinoff potential, it has also led to a research and development program in conjunction with several universities.

1986-01-01

59

Ant System  

Microsoft Academic Search

Ant System, the first Ant Colony Optimization algorithm, sho wed to be a viable method for attacking hard combinatorial optimization problems. Yet, its performance, when com- pared to more fine-tuned algorithms, was rather poor for larg e instances of traditional benchmark problems like the Traveling Salesman Problem. To show that Ant Colony Opti- mization algorithms could be good alternatives to

Libre de Bruxelles; Holger H. Hoos

60

POWER SYSTEMS  

Microsoft Academic Search

Low power output of other devices at this time dictates the use of ; nuclear-reactor systems for manned space explorations. Work up to the present is ; briefly reviewed, and progress and utilization of other power supplies are ; discussed. Pros and cons of solar cells, fuel cells, and thermoelectric and ; thermionic devices are included as well as consideration

1962-01-01

61

Irrigation System  

NASA Technical Reports Server (NTRS)

Under contract with Marshall Space Flight Center, Midwest Research Institute compiled a Lubrication Handbook intended as a reference source for designers and manufacturers of aerospace hardware and crews responsible for maintenance of such equipment. Engineers of Lindsay Manufacturing Company learned of this handbook through NASA Tech Briefs and used it for supplemental information in redesigning gear boxes for their center pivot agricultural irrigation system.

1984-01-01

62

Systems overview  

NASA Technical Reports Server (NTRS)

Charts and accompanying text are presented that provide a brief synopsis of the contracted efforts for FY-92 in assessing nuclear thermal propulsion requirements, concepts, and associated issues. The objective of the effort is to provide NASA LeRC with assistance in space nuclear propulsion system requirements management and public acceptance planning.

Corban, Robert

1993-01-01

63

Immune System  

EPA Science Inventory

A properly functioning immune system is essential to good health. It defends the body against infectious agents and in some cases tumor cells. Individuals with immune deficiencies resulting from genetic defects, diseases (e.g., AIDS, leukemia), or drug therapies are more suscepti...

64

System Dynamics  

NASA Astrophysics Data System (ADS)

System dynamics is an approach for thinking about and simulating situations and organisations of all kinds and sizes by visualising how the elements fit together, interact and change over time. This chapter, written by John Morecroft, describes modern system dynamics which retains the fundamentals developed in the 1950s by Jay W. Forrester of the MIT Sloan School of Management. It looks at feedback loops and time delays that affect system behaviour in a non-linear way, and illustrates how dynamic behaviour depends upon feedback loop structures. It also recognises improvements as part of the ongoing process of managing a situation in order to achieve goals. Significantly it recognises the importance of context, and practitioner skills. Feedback systems thinking views problems and solutions as being intertwined. The main concepts and tools: feedback structure and behaviour, causal loop diagrams, dynamics, are practically illustrated in a wide variety of contexts from a hot water shower through to a symphony orchestra and the practical application of the approach is described through several real examples of its use for strategic planning and evaluation.

Morecroft, John

65

Investigating Army systems and Systems of Systems for value robustness  

E-print Network

This thesis proposes a value robustness approach to architect defense systems and Systems of Systems (SoS). A value robust system or SoS has the ability to provide continued value to stakeholders by performing well to meet ...

Koo, Kevin C. K. (Kevin Cheng Keong)

2010-01-01

66

The Nervous System Nervous System Functions  

E-print Network

1 The Nervous System Nervous System Functions The primary functions of the nervous system are...the whole nervous system #12;5 Nervous System Organization Central Nervous System (CNS) Brain Spinal Cord Peripheral Nervous System Somatic NS--receives/sends messages to muscles Autonomic NS

Brown, Christopher A.

67

System Verification II Systems Engineering  

E-print Network

in safety critical systems to prevent unsafe values, e.g. high doses of radiation. Remember: not just should be able to: Explain the role & practice of debugging in the software process. Describe in detail the purpose, scope of, and activities comprising each of the three main phases of software testing. Conduct

Bryson, Joanna J.

68

Surveying System  

NASA Technical Reports Server (NTRS)

Sunrise Geodetic Surveys are setting up their equipment for a town survey. Their equipment differs from conventional surveying systems that employ transit rod and chain to measure angles and distances. They are using ISTAC Inc.'s Model 2002 positioning system, which offers fast accurate surveying with exceptional signals from orbiting satellites. The special utility of the ISTAC Model 2002 is that it can provide positioning of the highest accuracy from Navstar PPS signals because it requires no knowledge of secret codes. It operates by comparing the frequency and time phase of a Navstar signal arriving at one ISTAC receiver with the reception of the same set of signals by another receiver. Data is computer processed and translated into three dimensional position data - latitude, longitude and elevation.

1988-01-01

69

Solar Systems  

NASA Technical Reports Server (NTRS)

The solar collectors shown are elements of domestic solar hot water systems produced by Solar One Ltd., Virginia Beach, Virginia. Design of these systems benefited from technical expertise provided Solar One by NASA's Langley Research Center. The company obtained a NASA technical support package describing the d e sign and operation of solar heating equipment in NASA's Tech House, a demonstration project in which aerospace and commercial building technology are combined in an energy- efficient home. Solar One received further assistance through personal contact with Langley solar experts. The company reports that the technical information provided by NASA influenced Solar One's panel design, its selection of a long-life panel coating which increases solar collection efficiency, and the method adopted for protecting solar collectors from freezing conditions.

1979-01-01

70

Systemic treatment.  

PubMed

In the last years the management of patients with liver cancer has been improved. The BCLC staging/treatment strategy identifies the optimal candidates for each treatment option and sorafenib is the only effective systemic treatment. Others (sunitinib, brivanib, linifanib, everolimus, ramucirumab) have failed in terms of safety/survival benefit. Some patients at intermediate/early stage, may be considered for systemic therapy when options of higher priority may have failed or not be feasible. The 800 mg/day is the recommended starting dose. Close follow-up and easy access for the patients so that they can report any adverse event and implement dose adjustments is the key point in the management of them. Development of early dermatologic adverse events has been correlated with better outcome and the pattern of radiologic progression characterizes better the prognosis/outcome of these patients. Treatment beyond progression may be considered if there is no option for a second line research trial. PMID:25260318

Reig, Maria; Gazzola, Alessia; Di Donato, Roberto; Bruix, Jordi

2014-10-01

71

Neuroendocrine System  

Microsoft Academic Search

The physiological systems of the human body are placed under a great deal of stress during the process of exercise training.\\u000a Within elite athletes this stress can be of enormous levels because of the volume and intensity of work they perform in their\\u000a training regimes . When training stress is of an appropriate level then there is a positive adaptation

A. C. Hackney

72

Clinical systems  

Microsoft Academic Search

The computerization of clinical care is needed for several reasons. Paper records cannot efficiently support new models of care, clinical governance, or clinical decision-making; and they are not always available. The British Government's strategy for computerizing the NHS in England is embodied in the National Programme for Information Technology (NPfIT). Modern, patient-centric, electronic patient record systems that incorporate clinical decision-support

Anthony P Madden

2004-01-01

73

Imaging System  

NASA Technical Reports Server (NTRS)

The 1100C Virtual Window is based on technology developed under NASA Small Business Innovation (SBIR) contracts to Ames Research Center. For example, under one contract Dimension Technologies, Inc. developed a large autostereoscopic display for scientific visualization applications. The Virtual Window employs an innovative illumination system to deliver the depth and color of true 3D imaging. Its applications include surgery and Magnetic Resonance Imaging scans, viewing for teleoperated robots, training, and in aviation cockpit displays.

1995-01-01

74

Adrenergic System  

Microsoft Academic Search

\\u000a The adrenergic system is an essential regulator of cardiovascular, endocrine, neuronal, vegetative, and metabolic function.\\u000a The biological effects of the endogenous catecholamines epinephrine and norepinephrine are mediated by nine distinct G protein-coupled\\u000a receptor subtypes. These adrenergic receptors can be divided into three different groups, the a1-receptors (?1A, ?1B, ?1D), ?2-receptors (?2A, ?2B ?2C) ?-receptors (?1, ?2, ?3). In the absence

S. Engelhardt; L. Hein

75

Sterilization System  

NASA Technical Reports Server (NTRS)

Cox Sterile Products, Inc.'s Rapid Heat Transfer Sterilizer employs a heat exchange process that induces rapid air movement; the air becomes the heat transfer medium, maintaining a uniform temperature of 375 degrees Fahrenheit. It features pushbutton controls for three timing cycles for different instrument loads, a six-minute cycle for standard unpackaged instruments, eight minutes for certain specialized dental/medical instruments and 12 minutes for packaged instruments which can then be stored in a drawer in sterile condition. System will stay at 375 degrees all day. Continuous operation is not expensive because of the sterilizer's very low power requirements.

1990-01-01

76

Purification system  

NASA Technical Reports Server (NTRS)

A system for prolonging the life of a granulated activated charcoal (GAC) water treatment device is disclosed in which an ultraviolet light transparent material is used to constrain water to flow over carbon surfaces. It is configured to receive maximum flux from a UV radiation source for the purpose of preventing microbial proliferation on the carbon surfaces; oxidizing organic contaminants adsorbed from the water onto the carbon surfaces and from biodegradation of adsorbed microbial forms; disinfecting water; and oxidizing organic contaminants in the water.

Flanagan, David T. (inventor); Gibbons, Randall E. (inventor)

1992-01-01

77

Expert Systems: What Is an Expert System?  

ERIC Educational Resources Information Center

Describes expert systems and discusses their use in libraries. Highlights include parts of an expert system; expert system shells; an example of how to build an expert system; a bibliography of 34 sources of information on expert systems in libraries; and a list of 10 expert system shells used in libraries. (Contains five references.) (LRW)

Duval, Beverly K.; Main, Linda

1994-01-01

78

The Systems Man's Role in Systems Development.  

ERIC Educational Resources Information Center

At present most systems development is completely dominated by systems people. Such domination can lead to long delays in the development of systems, failures of many systems to ever become operational, costly redesigns for those that do, and a poor fit between systems and their users. Management and users, as well as systems programmers, need to…

Barnett, Arnold

79

ESMDIS: Earth System Model Data Information System  

Microsoft Academic Search

The goal of the development of the Earth System Model Data Information System (ESMDIS) are to provide Earth scientists with: 1) an output management system of Earth System Model (ESM) to browse the metadata and retrieve a desired subset of ESM output; 2) an analysis system of ESM output and other related datasets; 3) an automated pipelining system for ESM

Yuechen Chi; Carlos R. Mechoso; Michael Stonebraker; Keith Sklower; Richard Troy; Richard R. Muntz; Edmond Mesrobian

1997-01-01

80

Refrigeration system  

SciTech Connect

This patent describes a chamber including an expandable refrigerant system associated therewith. The system comprises reservoir containing an expandable refrigerant coolant and lead piping connecting the reservoir to conduits carrying the coolant therein. The chamber comprises top, bottom and side walls, accordingly defining an interior and an exterior to the chamber, one of the walls comprises a door affording access into the chamber, each of the walls being insulated with insulating material. At least one of the walls comprises a first layer of the insulating material extending thereover adjacent the exterior and a second layer of the insulating material extending thereover adjacent the interior. The reservoir, lead piping and conduits are disposed intermediate the first and second layers of insulating material thereby isolating them from both the interior and exterior. Heat transferring through the at least one wall is substantially absorbed by the coolant and the insulating material cooled by the coolant, before it is able to penetrate through the at least one wall, permitting a product placed in the chamber to effectively maintain or substantially maintain a selected even temperature.

Pagani, R.F.; Clarke, K.J.; Avon, E.J.

1986-11-11

81

Gastrointestinal system  

PubMed Central

The functions of the gastrointestinal (GI) tract include digestion, absorption, excretion, and protection. In this review, we focus on the electrical activity of the stomach and small intestine, which underlies the motility of these organs, and where the most detailed systems descriptions and computational models have been based to date. Much of this discussion is also applicable to the rest of the GI tract. This review covers four major spatial scales: cell, tissue, organ, and torso, and discusses the methods of investigation and the challenges associated with each. We begin by describing the origin of the electrical activity in the interstitial cells of Cajal, and its spread to smooth muscle cells. The spread of electrical activity through the stomach and small intestine is then described, followed by the resultant electrical and magnetic activity that may be recorded on the body surface. A number of common and highly symptomatic GI conditions involve abnormal electrical and/or motor activity, which are often termed functional disorders. In the last section of this review we address approaches being used to characterize and diagnose abnormalities in the electrical activity and how these might be applied in the clinical setting. The understanding of electrophysiology and motility of the GI system remains a challenging field, and the review discusses how biophysically based mathematical models can help to bridge gaps in our current knowledge, through integration of otherwise separate concepts. PMID:20836011

Cheng, Leo K.; O’Grady, Gregory; Du, Peng; Egbuji, John U.; Windsor, John A.; Pullan, Andrew J.

2014-01-01

82

Solar System  

NSDL National Science Digital Library

NASA is charting a bold new course into the cosmos, a journey that will take humans back to the Moon, and eventually to Mars and beyond. Exploration of the solar system and beyond will be guided by compelling questions of scientific and societal importance. NASA exploration programs will seek profound answers to questions about the origins of our solar system, whether life exists beyond Earth, and how we could live on other worlds. The NASA Vision for space exploration calls for a combination of human and robotic missions to achieve new exploration goals. Robotic missions to the Moon will be followed by an extended human expedition as early as 2015. Lunar exploration will lay the groundwork for future exploration of Mars and other destinations. A new spacecraft to support these journeys--the Crew Exploration Vehicle--will be tested before the end of this decade. Space exploration holds a special place in the human imagination. Youth are especially drawn to Mars rovers, astronauts, and telescopes. If used effectively and creatively, space can inspire children to seek careers in math, science, and engineering. Exploration and discovery are key agents of growth in society--technologically, economically, socially, internationally, and intellectually. This module is a first step in engaging today's youth in space exploration and serves as an invitation to participate in the excitement of discovery.

National Science Teachers Association (NSTA)

2005-04-01

83

Skeletal System  

NSDL National Science Digital Library

Through this unit, written for an honors anatomy and physiology class, students become familiar with the human skeletal system and answer the Challenge Question: When you get home from school, your mother grabs you, and you race to the hospital. Your grandmother fell and was rushed to the emergency room. The doctor tells your family your grandmother has a fractured hip, and she is referring her to an orthopedic specialist. The orthopedic doctor decides to perform a DEXA scan. The result show her BMD is -3.3. What would be a probable diagnosis to her condition? What are some possible causes of her condition? Should her daughter and granddaughter be worried about this condition, and if so, what are measures they could take to prevent this from happening to them?

Vu Bioengineering Ret Program

84

Tracking system  

SciTech Connect

A system of tracking the sun each day of the year with compensation for changes in time of sunrise and time of sunset as well as sun declination on a day to day basis, declination being under control of a crank that makes one revolution per year. The equation of time is under control of a cam that also revolves once a year and resets the clock to reflect solar rather than mean solar time in order to properly follow the sun. The position of sun acquisition and loss are a function of the declination and the time is a function of the clock corrected via the cam for equation of time. Thus, when the declination is reset each day, it sets the position of acquisition and loss while the clock, now set for the change due to the equation of time, determines the time of acquisition and loss.

Leroy, V. A.; Gaedtke, H. D.

1985-10-15

85

Computer Systems Administrator  

E-print Network

Computer Systems Administrator Fort Collins, CO POSITION A Computer Systems Administrator (Non activities. RESPONSIBILITIES The System Administrator will provide Unix/Linux, Windows computer system or computer science, and three years computer systems administration experience. DURATION The work is planned

86

System of systems modeling and simulation  

Microsoft Academic Search

Analyzing the performance of a complex System of Systems (SoS) requires a systems engineering approach. Many such SoS exist in the Military domain. Examples include the Army's next generation Future Combat Systems 'Unit of Action' or the Navy's Aircraft Carrier Battle Group. In the case of a Unit of Action, a system of combat vehicles, support vehicles and equipment are

Craig R. Lawton; James E. Campbell; Dennis James Anderson; Bruce Miles Thompson; Dennis E. Longsine; Donald N. Shirah; Robert M. Cranwell

2005-01-01

87

Communication Engineering Systems Introduction to Communication Systems  

E-print Network

Communication Engineering Systems Introduction to Communication Systems (1) Assoc .. 4 #12;Outline Variety of Today's Communication SystemsVariety of Today s Communication Systems Design Challenges Basic of Communication Systems F d t l Li it tiFundamental Limitation Bandwidth

Kovintavewat, Piya

88

Communication Systems Chair of Communication Systems  

E-print Network

1 | 36 Communication Systems 24th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2009 #12;2 | 36 Communication Systems last to final lecture Extension;3 | 36 Communication Systems GSM interfaces and components #12;4 | 36 Communication Systems GSM

Schindelhauer, Christian

89

Systems Biology and Systems Medicine: Technology,  

E-print Network

Systems Biology and Systems Medicine: Technology, Measurement and Validation Lee Hood Institute for Systems Biology, Seattle How Might One Think About Systems Biology? #12;Radio Waves Sound Waves #12;Immune Response Intra- and inter- cellular networks Development Physiology #12;Contemporary Systems Biology

90

Elec 331 -Nervous System Nervous System  

E-print Network

Elec 331 - Nervous System 1 Nervous System · Central Nervous System ­ Brain ­ Spinal Chord · Peripheral Nervous System ­ "Conductive" network between CNS & organs ­ Neurones · Individual cells · May act Flow of Information neurone #12;Elec 331 - Nervous System 2 Cell States · Resting Potential (Vc = -70m

Pulfrey, David L.

91

Separation system  

DOEpatents

A separation system for dewatering radioactive waste materials includes a disposal container, drive structure for receiving the container, and means for releasably attaching the container to the drive structure. Separation structure disposed in the container adjacent the inner surface of the side wall structure retains solids while allowing passage of liquids. Inlet port structure in the container top wall is normally closed by first valve structure that is centrifugally actuated to open the inlet port and discharge port structure at the container periphery receives liquid that passes through the separation structure and is normally closed by second valve structure that is centrifugally actuated to open the discharge ports. The container also includes coupling structure for releasable engagement with the centrifugal drive structure. Centrifugal force produced when the container is driven in rotation by the drive structure opens the valve structures, and radioactive waste material introduced into the container through the open inlet port is dewatered, and the waste is compacted. The ports are automatically closed by the valves when the container drum is not subjected to centrifugal force such that containment effectiveness is enhanced and exposure of personnel to radioactive materials is minimized.

Rubin, Leslie S. (Newton, MA)

1986-01-01

92

System safety education focused on system management  

NASA Technical Reports Server (NTRS)

System safety is defined and characteristics of the system are outlined. Some of the principle characteristics include role of humans in hazard analysis, clear language for input and output, system interdependence, self containment, and parallel analysis of elements.

Grose, V. L.

1971-01-01

93

Onsite Wastewater Treatment Systems: Spray Distribution System  

E-print Network

Spray distribution systems for wastewater are much like lawn sprinkler systems, in that they spray treated wastewater over the surface of a yard. This publication explains how spray distribution systems work, what their design requirements are...

Lesikar, Bruce J.

2008-10-23

94

Examining Survivability of Systems of Systems  

E-print Network

Previous research has identified design principles that enable survivability for systems, but it is unclear if these principles are appropriate and sufficient for systems of systems as well. This paper presents a preliminary ...

Mekdeci, Brian

95

System architecture of offshore oil production systems  

E-print Network

This thesis presents an approach to applying Systems Architecture methods to the development of large, complex, commercial systems, particularly offshore oil and gas productions systems. The aim of this research was to ...

Keller, James (James Thomas)

2008-01-01

96

Systemic Risk in the International System  

E-print Network

The risk of systemic war seems dependant on the level of criticality and sensitivity of the International System, and the system's conditions. The level of criticality and sensitivity is dependant on the developmental stage of the International System. Initially, following a systemic war, the increase of the level of criticality and sensitivity go hand in hand. However, at a certain stage the sensitivity of the International System for larger sized wars decreases; as a consequence of a network effect, we argue. This network effect results in increased local stability of the System. During this phase the criticality of the International System steadily increases, resulting in a release deficit. This release deficit facilitates a necessary build up of energy to push the International System, by means of systemic war, into a new stability domain. Systemic war is functional in the periodic rebalancing of an anarchistic international system.

Ingo Piepers

2009-10-15

97

perovskite system  

NASA Astrophysics Data System (ADS)

Experiments using laser-heated diamond anvil cells combined with synchrotron X-ray diffraction and SEM-EDS chemical analyses have confirmed the existence of a complete solid solution in the MgSiO3-MnSiO3 perovskite system at high pressure and high temperature. The (Mg, Mn)SiO3 perovskite produced is orthorhombic, and a linear relationship between the unit cell parameters of this perovskite and the proportion of MnSiO3 components incorporated seems to obey Vegard's rule at about 50 GPa. The orthorhombic distortion, judged from the axial ratios of a/ b and monotonically decreases from MgSiO3 to MnSiO3 perovskite at about 50 GPa. The orthorhombic distortion in (Mg0.5, Mn0.5)SiO3 perovskite is almost unchanged with increasing pressure from 30 to 50 GPa. On the other hand, that distortion in (Mg0.9, Mn0.1)SiO3 perovskite increases with pressure. (Mg, Mn)SiO3 perovskite incorporating less than 10 mol% of MnSiO3 component is quenchable. A value of the bulk modulus of 256(2) GPa with a fixed first pressure derivative of four is obtained for (Mg0.9, Mn0.1)SiO3. MnSiO3 is the first chemical component confirmed to form a complete solid solution with MgSiO3 perovskite at the P- T conditions present in the lower mantle.

Li, Lin; Nagai, Takaya; Ishido, Tomoki; Motai, Satoko; Fujino, Kiyoshi; Itoh, Shoichi

2014-06-01

98

Denitrification system  

SciTech Connect

An improved multi-stage treatment system is described for biological denitrification of and suspended solids removal from water which comprises: a biological reactor, an aeration chamber and an automatic backwash filter, the reactor including a tank having a lower tank portion, a central tank portion and an upper tank portion, influent distribution means positioned in the lower tank portion, rigid media in the central tank portion capable of supporting denitrifying bacterial growths, and a plurality of collectors positioned in the upper tank portion, the collectors each including an outlet pipe, the chamber having a lower chamber portion, a central chamber portion and an upper chamber portion, aeration means positioned in the lower chamber portion, the outlet pipes of the collectors discharging into the lower chamber portion, and chamber outlet means associated with the central chamber portion, and the filter having a lower filter portion, a central filter portion, an upper filter portion and an effluent channel portion, the filter being divided into a plurality of seriate rectangular cells containing filter media, the chamber outlet means being associated with the central filter portion by which liquid contained in the aeration chamber may discharge into the filter to be filtered through the filter media, a separate port in each the cell beneath its the filter media for discharging filtered liquid from and charging backwash liquid to the respective the cell, the effluent channel portion being common to the plurality of the separate ports that all communicate with the effluent channel portion through a longitudinal planar surface in which the separate ports are substantially equally spaced apart a predetermined distance, and back washing means including a pump for forcing back washing liquid through the separate ports, a backwash shoe that slides along the planar surface to access the separate ports and motor.

Kanow, P.E.

1993-08-03

99

Integrated Nanofluidic Systems for Systems Biotechnology  

E-print Network

Integrated Nanofluidic Systems for Systems Biotechnology Wednesday October 28 2009 Burchard 118, 11 in prestigious journals including Science and Nature Biotechnology. Hong's research interests include Bio

Fisher, Frank

100

Expanding Alternative Delivery Systems.  

ERIC Educational Resources Information Center

Alternative educational delivery systems that might be useful to community colleges are considered. The following categories of delivery systems are covered: broadcast delivery systems; copy delivery systems, print delivery systems, computer delivery systems, telephone delivery systems, and satellites. Among the applications for broadcast…

Baltzer, Jan A.

101

Experiential Media Systems EXPERIENTIAL MEDIA SYSTEMS  

E-print Network

-oriented, unified physical- digital experiences. These media systems will give rise to a new set of multimedia working on developing an experiential media system that integrates task dependent physical therapyExperiential Media Systems EXPERIENTIAL MEDIA SYSTEMS Hari Sundaram and Thanassis Rikakis Arts

Rikakis, Thanassis

102

Communication Systems Chair of Communication Systems  

E-print Network

1 | 47 Communication Systems 11th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 47 Communication Systems Organization and Q&A Any by these protocols? #12;3 | 47 Communication Systems open shortest path first (OSPF) Last lecture: OSPF

Schindelhauer, Christian

103

Communication Systems Chair of Communication Systems  

E-print Network

1 | 47 Communication Systems 13th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2008 #12;2 | 45 Communication Systems Organization and Q&A Any questions;3 | 47 Communication Systems What is DNS? Imagine: Try to remember the telephone numbers of your friends

Schindelhauer, Christian

104

Communication Systems Chair of Communication Systems  

E-print Network

1 | 29 Communication Systems 3rd lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 29 Communication Systems Organization and Q&A Any Ethernet adapter is plugged into the old-standard PCI? #12;3 | 29 Communication Systems 10GBit/s Ethernet

Schindelhauer, Christian

105

Communication Systems Chair of Communication Systems  

E-print Network

1 | 69 Communication Systems 22nd lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2009 #12;2 | 69 Communication Systems Q&A How does the codec used in a Vo of security implications does SIP has? #12;3 | 69 Communication Systems plan for this lecture Voice over IP

Schindelhauer, Christian

106

Communication Systems Chair of Communication Systems  

E-print Network

1 | 27 Communication Systems 21st lecture Chair of Communication Systems Department of Applied NATed and proxied HTTP connection of a client? Communication Systems Q&A #12;3 | 27 3rd and last part of the communication systems lecture: digital telephony For a rather long time telephone and data networks were

Schindelhauer, Christian

107

Communication Systems Chair of Communication Systems  

E-print Network

1 | 24 Communication Systems 20th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2009 #12;2 | 24 Communication Systems Organization We will offer an oral to a bounded constant Communication systems network security ­ firewalls, packet filtering #12;4 | 24 Packet

Schindelhauer, Christian

108

Communication Systems Chair of Communication Systems  

E-print Network

1 | 28 Communication Systems 15th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2008 #12;2 | 28 Communication Systems Organization Last lecture networking issues Starting into second part of "Communication Systems" ­ I. Data and voice communication

Schindelhauer, Christian

109

Communication Systems Chair of Communication Systems  

E-print Network

1 | 18 Communication Systems 4th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 18 Communication Systems Organization and Q&A Any in Ethernet channel bonding, but why might it a be a good idea nevertheless? #12;3 | 18 Communication Systems

Schindelhauer, Christian

110

Communication Systems Chair of Communication Systems  

E-print Network

1 | 29 Communication Systems 9th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 29 Communication Systems Organization and Q&A Any? ­ Why are the header checksums of TCP and UDP to be recalculated? #12;3 | 29 Communication Systems

Schindelhauer, Christian

111

Communication Systems Chair of Communication Systems  

E-print Network

1 | 29 Communication Systems 14th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2008 #12;2 | 29 Communication Systems Organization and Q&A Any questions? ­ How is this number is increased nevertheless? #12;3 | 29 Communication Systems Operating the database

Schindelhauer, Christian

112

Communication Systems Chair of Communication Systems  

E-print Network

1 | 19 Communication Systems 10th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 19 Communication Systems Organization and Q&A Any start? ­ Which other protocols use multicast for message exchange? #12;3 | 19 Communication Systems

Schindelhauer, Christian

113

Communication Systems Chair of Communication Systems  

E-print Network

1 | 27 Communication Systems 12th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2008 #12;2 | 27 Communication Systems Organization and Q&A Any questions addresses was dropped? #12;3 | 27 Communication Systems IP v6 ­ header format Some important changes within

Schindelhauer, Christian

114

Communication Systems Chair of Communication Systems  

E-print Network

1 | 34 Communication Systems 7th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 34 Communication Systems Organization and Q&A Any is not configured at the client yet)? #12;3 | 34 Communication Systems Organization and Q&A Why wouldn

Schindelhauer, Christian

115

Communication Systems Chair of Communication Systems  

E-print Network

1 | 32 Communication Systems 8th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 32 Communication Systems Organization and Q&A Any Communication Systems Organization and Q&A Please specify what kind of an IP address/network this is: ­ 0

Schindelhauer, Christian

116

Communication Systems Chair of Communication Systems  

E-print Network

1 | 26 Communication Systems 6th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 26 Communication Systems Organization and Q&A Any a smaller MTU rather than the standard one introduce? #12;3 | 26 Communication Systems Organization and Q

Schindelhauer, Christian

117

Hybrid System Modeling and Autonomous Control Systems  

Microsoft Academic Search

Hybrid control systems contain two distinct types of systems, continuous state and discrete-state, that interact with each other. Their study is essential in designing sequential supervisory controllers for continuous-state systems, and it is central in designing control systems with high degree of autonomy.

Panos J. Antsaklis; James A. Stiver; Michael D. Lemmon

1992-01-01

118

Industrial and Systems engineering  

E-print Network

Industrial and Systems engineering COLLEGE of ENGINEERING DepartmentofIndustrialandSystemsEngineering EDGE Engineering Entrepreneur Certificate Program is a great addition to an industrial and systems to expert clinical recommendations. engineering.wayne.edu/isefaculty Industrial and systems engineering

Berdichevsky, Victor

119

metamorphosis superintegrable systems  

E-print Network

Coupling constant metamorphosis and nth order symmetries for superintegrable systems with a survey constant metamorphosis andnth order symmetries for superintegrable systems -- p. 1/51 #12; Superintegrable of superintegrable system. Coupling constant metamorphosis andnth order symmetries for superintegrable systems -- p

Weinberger, Hans

120

Complex System Classification  

E-print Network

The use of terms such as “Engineering Systems”, “System of systems” and others have been coming into greater use over the past decade to denote systems of importance but with implied higher complexity than for the term ...

Magee, Christopher

2004-07-24

121

Multiple System Atrophy  

MedlinePLUS

NINDS Multiple System Atrophy Information Page Condensed from Multiple System Atrophy Fact Sheet Table of Contents (click to jump to sections) ... being done? Clinical Trials Organizations What is Multiple System Atrophy? Multiple system atrophy (MSA) is a progressive ...

122

The Solar System  

NSDL National Science Digital Library

What are the parts of our solar system? Let's learn about the parts of our Solar System! First, use the Solar System Chart Now read the Introduction to the Solar System and begin filling out the Solar System Chart by listing one fact for each planet. Now watch the Video 1 on the Solar System and fill out one characteristic about each planet in our Solar System. Now read the Facts about the Solar System and find ...

Kathrynbyers

2012-04-05

123

Serverless Network File Systems  

Microsoft Academic Search

In this paper, we propose a new paradigm for network file system design, serverless network file systems. While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services. Any machine in the system can store, cache, or control any block of data. Our approach uses this

Thomas E. Anderson; Michael Dahlin; Jeanna M. Neefe; David A. Patterson; Drew S. Roselli; Randolph Y. Wang

1995-01-01

124

KEKB accelerator control system  

Microsoft Academic Search

The KEKB accelerator control system including a control computer system, a timing distribution system, and a safety control system are described. KEKB accelerators were installed in the same tunnel where the TRISTAN accelerator was. There were some constraints due to the reused equipment. The control system is based on Experimental Physics and Industrial Control System (EPICS). In order to reduce

Nobumasa Akasaka; Atsuyoshi Akiyama; Sakae Araki; Kazuro Furukawa; Tadahiko Katoh; Takashi Kawamoto; Ichitaka Komada; Kikuo Kudo; Takashi Naito; Tatsuro Nakamura; Jun-Ichi Odagiri; Yukiyoshi Ohnishi; Masayuki Sato; Masaaki Suetake; Shigeru Takeda; Yasunori Takeuchi; Noboru Yamamoto; Masakazu Yoshioka; Eji Kikutani

2003-01-01

125

Serverless network file systems  

Microsoft Academic Search

We propose a new paradigm for network file system design: serverless network file systems. While traditional network file systems rely on a central server machine, a serverless system utilizes workstations cooperating as peers to provide all file system services. Any machine in the system can store, cache, or control any block of data. Our approach uses this location independence, in

Thomas E. Anderson; Michael D. Dahlin; Jeanna M. Neefe; David A. Patterson; Drew S. Roselli; Randolph Y. Wang

1996-01-01

126

On Systemic Destruction of Human Locomotor System  

E-print Network

Locomotor system disorders affect a vast majority of people at some time in their life bringing pain, functional limitations, social and economic implications. Modern medicine cannot offer prevention and effective treatment for most chronic musculoskeletal conditions, because their etiology and pathogenesis are unknown. This is due to the lack of systemic understanding of the locomotor system functioning in both healthy and unhealthy states. Here we apply systems sciences to analyze the human locomotor system and develop a general theory that reveals the systemic destructive process in the locomotor system, linking together all its disorders. The systemic destruction involves adaptation and self-organization processes in the locomotor system, whose side effects introduce a positive feedback loop with nervous and vascular disturbances. Most chronic musculoskeletal conditions are just manifestations and consequences of this process. On the basis of our theoretical findings, we developed the world's first techno...

Medjanik, Zoja; Popov, Sergiy

2013-01-01

127

System of systems modeling and analysis.  

SciTech Connect

This report documents the results of an LDRD program entitled 'System of Systems Modeling and Analysis' that was conducted during FY 2003 and FY 2004. Systems that themselves consist of multiple systems (referred to here as System of Systems or SoS) introduce a level of complexity to systems performance analysis and optimization that is not readily addressable by existing capabilities. The objective of the 'System of Systems Modeling and Analysis' project was to develop an integrated modeling and simulation environment that addresses the complex SoS modeling and analysis needs. The approach to meeting this objective involved two key efforts. First, a static analysis approach, called state modeling, has been developed that is useful for analyzing the average performance of systems over defined use conditions. The state modeling capability supports analysis and optimization of multiple systems and multiple performance measures or measures of effectiveness. The second effort involves time simulation which represents every system in the simulation using an encapsulated state model (State Model Object or SMO). The time simulation can analyze any number of systems including cross-platform dependencies and a detailed treatment of the logistics required to support the systems in a defined mission.

Campbell, James E.; Anderson, Dennis James; Longsine, Dennis E. (Intera, Inc., Austin, TX); Shirah, Donald N.

2005-01-01

128

System Software Framework for System of Systems Avionics  

NASA Technical Reports Server (NTRS)

Project Constellation implements NASA's vision for space exploration to expand human presence in our solar system. The engineering focus of this project is developing a system of systems architecture. This architecture allows for the incremental development of the overall program. Systems can be built and connected in a "Lego style" manner to generate configurations supporting various mission objectives. The development of the avionics or control systems of such a massive project will result in concurrent engineering. Also, each system will have software and the need to communicate with other (possibly heterogeneous) systems. Fortunately, this design problem has already been solved during the creation and evolution of systems such as the Internet and the Department of Defense's successful effort to standardize distributed simulation (now IEEE 1516). The solution relies on the use of a standard layered software framework and a communication protocol. A standard framework and communication protocol is suggested for the development and maintenance of Project Constellation systems. The ARINC 653 standard is a great start for such a common software framework. This paper proposes a common system software framework that uses the Real Time Publish/Subscribe protocol for framework-to-framework communication to extend ARINC 653. It is highly recommended that such a framework be established before development. This is important for the success of concurrent engineering. The framework provides an infrastructure for general system services and is designed for flexibility to support a spiral development effort.

Ferguson, Roscoe C.; Peterson, Benjamin L; Thompson, Hiram C.

2005-01-01

129

Intelligent systems technology infrastructure for integrated systems  

NASA Technical Reports Server (NTRS)

Significant advances have occurred during the last decade in intelligent systems technologies (a.k.a. knowledge-based systems, KBS) including research, feasibility demonstrations, and technology implementations in operational environments. Evaluation and simulation data obtained to date in real-time operational environments suggest that cost-effective utilization of intelligent systems technologies can be realized for Automated Rendezvous and Capture applications. The successful implementation of these technologies involve a complex system infrastructure integrating the requirements of transportation, vehicle checkout and health management, and communication systems without compromise to systems reliability and performance. The resources that must be invoked to accomplish these tasks include remote ground operations and control, built-in system fault management and control, and intelligent robotics. To ensure long-term evolution and integration of new validated technologies over the lifetime of the vehicle, system interfaces must also be addressed and integrated into the overall system interface requirements. An approach for defining and evaluating the system infrastructures including the testbed currently being used to support the on-going evaluations for the evolutionary Space Station Freedom Data Management System is presented and discussed. Intelligent system technologies discussed include artificial intelligence (real-time replanning and scheduling), high performance computational elements (parallel processors, photonic processors, and neural networks), real-time fault management and control, and system software development tools for rapid prototyping capabilities.

Lum, Henry, Jr.

1991-01-01

130

[X-33 Systems  

NASA Technical Reports Server (NTRS)

Lockheed Martin Skunk Works has compiled an Annual Performance Report of the X-33/RLV Program. This report consists of individual reports from all industry team members, as well as NASA team centers. This portion of the report is comprised of a status report of Allied-Signal Aerospace's contribution to the program. The following is a summary of the work reviewed under their portion of the agreement: (1) Communication Systems; (2) Environmental Control Systems- Active Thermal Control System (ATCS), Purge and Vent System, Hydrogen Detection System (HDS), Avionics Bay Inerting System (ABIS), and Flush Air Data System (FADS); (2) Landing Systems; (3) Power Management and Generation Systems; (4) Flight Control Actuation System (FCAS)- Electric Power Control & Distribution System (EPCDS), and Battery Power System (BPS); and (5) Vehicle Management Systems (VMS)- VMS Hardware, VMS Software Development Activities, and System Integration Laboratory (SIL).

1999-01-01

131

Freedom System Text and Graphics System (TAGS)  

NASA Technical Reports Server (NTRS)

The Text and Graphics System (TAGS) is a high-resolution facsimile system that scans text or graphics material and converts the analog SCAN data into serial digital data. This video shows the TAGS in operation.

1989-01-01

132

Influence strategies for systems of systems  

E-print Network

Distributed decision making has been identified as a source of managerial complexity for leaders of systems of systems (SoS). A new framework, AIR (Anticipation-Influence-Reaction), is proposed to capture the feedback ...

Shah, Nirav Bharat, 1979-

2013-01-01

133

Computer Systems Research (CSR)  

NSF Publications Database

The Computer Systems Research (CSR) program supports innovative research and education projects that will lead to better computer systems by increasing our fundamental understanding of such systems and by producing better systems software. Embedded systems software and composition technology: highly innovative concepts and methods for middleware, virtual machines, and system services; new concepts and methods for high confidence, distributed, real-time operating systems; component technology ...

134

Liberating Systems Theory: Toward Critical Systems Thinking  

Microsoft Academic Search

This article contains an exploration of a number of the many interpretations of its title Liberating Systems Theory. It is in fact a point of reflection on the way to realizing Critical Systems Thinking. Particular points of focus are critical theory integrated to practice in systems \\

R. L. Flood

1990-01-01

135

Communication Systems Chair of Communication Systems  

E-print Network

1 | 45 Communication Systems 2nd lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg Winter Term 2008 #12;2 | 45 Communication Systems Organization and Q&A Everybody should have gotten two emails of the comsysWS08 mailing list ­ Communicating organizational issues

Schindelhauer, Christian

136

Communication Systems Chair of Communication Systems  

E-print Network

1 | 19 Communication Systems 19th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2009 #12;2 | 19 Communication Systems Organization Last lectures we ensure this way, that nobody can read/alter the packets of a communication during transit We do

Schindelhauer, Christian

137

Communication Systems Chair of Communication Systems  

E-print Network

1 | 18 Communication Systems 17th lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2009 #12;2 | 18 Communication Systems Organization Exam: Please do in the practical part Concepts of certification and authorities useful in several setups #12;3 | 18 Communication

Schindelhauer, Christian

138

LRRB Pavement Management Systems Pavement Management Systems  

E-print Network

LRRB Pavement Management Systems Pavement Management Systems Presented by: Michael Marti SRF for implementing and monitoring research results (RIC) #12;LRRB Pavement Management Systems LRRB Structure LRRB and counties in implementing Pavement Management and/or using better §Project produced several deliverables

Minnesota, University of

139

ENVIRONMENTAL ASSESSMENT DATA SYSTEMS: SYSTEMS OVERVIEW MANUAL  

EPA Science Inventory

The report is a systems overview manual and technical reference guide for the Environmental Assessment Data Systems (EADS), a group of related computerized data bases which describe multimedia discharges from energy systems and industrial processes. The EADS have been designed to...

140

User Registration Systems for Distributed Systems  

Microsoft Academic Search

As NASA's Earth Observing System Data and Information System (EOSDIS) systems have evolved over the years, most of the EOSDIS data are now available to users via anonymous on-line access. Although the changes have improved the dissemination efficiency of earth science data, the anonymous access has made it difficult to characterize users, capture metrics on the value of EOSDIS and

K. J. Murphy; M. Cechini; D. Pilone; A. Mitchell

2010-01-01

141

General Systems Theory and Instructional Systems Design.  

ERIC Educational Resources Information Center

Describes basic concepts in the field of general systems theory (GST) and identifies commonalities that exist between GST and instructional systems design (ISD). Models and diagrams that depict system elements in ISD are presented, and two matrices that show how GST has been used in ISD literature are included. (11 references) (LRW)

Salisbury, David F.

1990-01-01

142

Biometric System Security Systems and Computer Engineering  

E-print Network

on their behavioral and biolog- ical characteristics", a vulnerability in biometric security results in incorrectBiometric System Security Andy Adler Systems and Computer Engineering Carleton University, Ottawa to confidentiality and integrity". Defining biometrics system security is difficult, because of the ways biometric

Adler, Andy

143

Intelligent tutoring systems for systems engineering methodologies  

NASA Technical Reports Server (NTRS)

The general goal is to provide the technology required to build systems that can provide intelligent tutoring in IDEF (Integrated Computer Aided Manufacturing Definition Method) modeling. The following subject areas are covered: intelligent tutoring systems for systems analysis methodologies; IDEF tutor architecture and components; developing cognitive skills for IDEF modeling; experimental software; and PC based prototype.

Meyer, Richard J.; Toland, Joel; Decker, Louis

1991-01-01

144

Naval shipboard power system  

Microsoft Academic Search

Different naval shipboard power system architectures and their basic characteristics have been discussed in the paper. In addition the paper discusses about incorporation of platform management systems into the ship automation system that would enable monitoring and control of the shipboard power system, assessing and diagnosing system failures\\/damages and reconfiguring and restoring power to service loads with reduced manpower and

R. Jayabalan; B. Fahimi

2005-01-01

145

Semantic file systems  

Microsoft Academic Search

A semantic file system is an information storage system that provides flexible associative access to the system's contents by automatically extracting attributes from files with file type specific transducers. Associative access is provided by a conservative extension to existing tree-structured file system protocols, and by protocols that are designed specifically for content based access. Compatiblity with existing file system protocols

David K. Gifford; Pierre Jouvelot; Mark A. Sheldon; James W. O'Toole Jr.

1991-01-01

146

Operating systems transactions  

Microsoft Academic Search

Applications must be able to synchronize accesses to operating system resources in order to ensure correctness in the face of concurrency and system failures. System transactions allow the programmer to specify updates to heterogeneous system resources with the OS guaranteeing atomicity, consistency, isolation, and durability (ACID). System transactions efficiently and cleanly solve persistent concurrency problems that are difficult to address

Donald E. Porter; Owen S. Hofmann; Christopher J. Rossbach; Alexander Benn; Emmett Witchel

2009-01-01

147

Operating System Transactions  

Microsoft Academic Search

Applications must be able to synchronize accesses to oper- ating system resources in order to ensure correctness in the face of concurrency and system failures. System transac- tions allow the programmer to specify updates to heteroge- neous system resources with the OS guaranteeing atomicity, consistency, isolation, and durability (ACID). System trans- actions efficiently and cleanly solve persistent concurrency problems that

Donald E. Porter; Owen S. Hofmann; Christopher J. Rossbach; Alexander Benn; Emmett Witchel

148

Heliospheric coordinate systems  

Microsoft Academic Search

This article gives an overview and reference to the most common coordinate systems currently used in space science. While coordinate systems used in near-Earth space physics have been described in previous work we extend that description to systems used for physical observations of the Sun and the planets and to systems based on spacecraft location. For all systems, we define

M. Fränz; D. Harper

2002-01-01

149

Collaborative Systems Testing  

ERIC Educational Resources Information Center

Collaborative systems are widely used today in various activity fields. Their complexity is high and the development involves numerous resources and costs. Testing collaborative systems has a very important role for the systems' success. In this paper we present taxonomy of collaborative systems. The collaborative systems are classified in many…

Pocatilu, Paul; Ciurea, Cristian

2009-01-01

150

Stabilization of LFT systems  

Microsoft Academic Search

The problem of parametrizing all stabilizing controllers for general linear fractional transformation (LFT) systems is studied. The LFT systems can be variously interpreted as multidimensional systems or uncertain systems, and the controller is allowed to have the same dependence on the frequency\\/uncertainty structure as the plant. For multidimensional systems, this means that the controller is allowed dynamic feedback, while the

K. Zhou; John C. Doyle

1991-01-01

151

Energy Systems Design  

NASA Technical Reports Server (NTRS)

PRESTO, a COSMIC program, handles energy system specifications and predicts design efficiency of cogeneration systems. These systems allow a company to use excess energy produced to generate electricity. PRESTO is utilized by the Energy Systems Division of Thermo Electron Corporation in the custom design of cogeneration systems.

1986-01-01

152

Microwave landing system autoland system analysis  

NASA Technical Reports Server (NTRS)

The objective was to investigate the ability of present day aircraft equipped with automatic flight control systems to fly advanced Microwave Landing Systems (MLS) approaches. The tactical approach used to achieve this objective included reviewing the design and autoland operation of the MD-80 aircraft, simulating the MLS approaches using a batch computer program, and assessing the performance of the autoland system from computer generated data. The results showed changes were required to present Instrument Landing System (ILS) procedures to accommodate the new MLS curved paths. It was also shown that in some cases, changes to the digital flight guidance systems would be required so that an autoland could be performed.

Feather, J. B.; Craven, B. K.

1991-01-01

153

DDL system: Design systhesis of digital systems  

NASA Technical Reports Server (NTRS)

Digital Systems Design Language was integrated into the CADAT system environment of NASA-MSFC. The major technical aspects of this integration are summarized. Automatic hardware synthesis is now possible starting with a high level description of the system to be synthesized. The DDL system provides a high level design verification capability, thereby minimizing design changes in the later stages of the design cycle. An overview of the DDL system covering the translation, simulation and synthesis capabilities is provided. Two companion documents (the user's and programmer's manuals) are to be consulted for detailed discussions.

Shiva, S. G.

1983-01-01

154

Maglev systems development status  

Microsoft Academic Search

The current status and future potential of Maglev systems is reviewed. Modes of noncontact suspension and propulsion are described, and prototype systems and design concepts are indicated. A number of existing systems are described in more detail

A. R. Eastham; W. F. Hayes

1988-01-01

155

Systems Science Harder House  

E-print Network

curriculum includes courses in artificial life, computer simulation, discrete multivariate modeling, dynamical systems, game theory, information theory, neural networks, systems approach, system dynamics in the College of Liberal Arts and Sciences, the Maseeh College of Engineering and Computer Science

156

Steam System Optimization  

E-print Network

Most plant steam systems are complex systems. Usually the fuel required to produce the steam represents a major expense for manufacturing facilities. By properly operating and maintaining the steam system and making minor improvements, significant...

Aegerter, R. A.

157

Unlocking the Endocrine System  

NSDL National Science Digital Library

Students learn how the endocrine system works and compare it to the mail delivery system. Students discuss the importance of communication in human body systems and relate that to engineering and astronauts.

Integrated Teaching And Learning Program

158

Fireproof Brake Hydraulic System.  

National Technical Information Service (NTIS)

The feasibility of a fireproof two-fluid brake hydraulic system which utilizes nonflammable chlorotrifluoroethylene (CTFE) fluid in a dead ended brake hydraulic system mechanically isolated from the primary MIL-H-5606 hydraulic system was studied. Experim...

S. M. Warren, J. R. Kilner

1981-01-01

159

Female Reproductive System  

MedlinePLUS

... and female reproductive systems. Continue What Is the Female Reproductive System? Most species have two sexes: male ... some reason other than pregnancy. Infections of the Female Reproductive System Sexually transmitted diseases (STDs) . Also called ...

160

The Solar System  

NSDL National Science Digital Library

Identify basic components of our solar system, including the sun, planets, and Earth's moon. We have just learned about the Solar System. Click here to watch an informational overview of the Solar System: Overview of the Solar System.. The planets in our Solar System are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto. Every planet in our Solar System revolves around the sun. The sun provides the energy ...

Smithson, Ms.

2009-07-07

161

System status display information  

NASA Technical Reports Server (NTRS)

The system Status Display is an electronic display system which provides the flight crew with enhanced capabilities for monitoring and managing aircraft systems. Guidelines for the design of the electronic system displays were established. The technical approach involved the application of a system engineering approach to the design of candidate displays and the evaluation of a Hernative concepts by part-task simulation. The system engineering and selection of candidate displays are covered.

Summers, L. G.; Erickson, J. B.

1984-01-01

162

Computer Systems Research  

NSF Publications Database

Embedded systems software composition: algorithms, middleware, virtual machines, and system services; new concepts for distributed real-time and light-weight operating systems; component technology for functional and non-functional aspects of systems; and, programming methods for integration of embedded system services. The AES topical area supports research and education projects that create systems software to facilitate the development and runtime support of complex applications. One way ...

163

Intelligent transportation systems.  

E-print Network

??Many transportation systems used today are costly, slow, fragmented, and dangerous. This paper explores the inefficiencies and negative impacts associated with our current transportation systems.… (more)

Locke, Danielle Marie

2011-01-01

164

Automated surface observing systems  

NSF Publications Database

Title : Automated surface observing systems Type : Antarctic EAM NSF Org: OD / OPP Date : August 19 ... Action Memorandum (Installation of Automated Surface Observing Systems [ASOS}) To: Director, Office ...

165

Lightside Atmospheric Revitalization System  

NASA Technical Reports Server (NTRS)

The system was studied as a replacement to the present baseline LiOH system for extended duration shuttle missions. The system consists of three subsystems: a solid amine water desorbed regenerable carbon dioxide removal system, a water vapor electrolysis oxygen generating system, and a Sabatier reactor carbon dioxide reduction system. The system is designed for use on a solar powered shuttle vehicle. The majority of the system's power requirements are utilized on the Sun side of each orbit, when solar power is available.

Colling, A. K.; Cushman, R. J.; Hultman, M. M.; Nason, J. R.

1980-01-01

166

Control system design method  

DOEpatents

A control system design method and concomitant control system comprising representing a physical apparatus to be controlled as a Hamiltonian system, determining elements of the Hamiltonian system representation which are power generators, power dissipators, and power storage devices, analyzing stability and performance of the Hamiltonian system based on the results of the determining step and determining necessary and sufficient conditions for stability of the Hamiltonian system, creating a stable control system based on the results of the analyzing step, and employing the resulting control system to control the physical apparatus.

Wilson, David G. (Tijeras, NM); Robinett, III, Rush D. (Tijeras, NM)

2012-02-21

167

Umbra's system representation.  

SciTech Connect

This document describes the Umbra System representation. Umbra System representation, initially developed in the spring of 2003, is implemented in Incr/Tcl using concepts borrowed from Carnegie Mellon University's Architecture Description Language (ADL) called Acme. In the spring of 2004 through January 2005, System was converted to Umbra 4, extended slightly, and adopted as the underlying software system for a variety of Umbra applications that support Complex Systems Engineering (CSE) and Complex Adaptive Systems Engineering (CASE). System is now a standard part Of Umbra 4. While Umbra 4 also includes an XML parser for System, the XML parser and Schema are not described in this document.

McDonald, Michael James

2005-07-01

168

Integrated Systems Health Management for Intelligent Systems  

NASA Technical Reports Server (NTRS)

The implementation of an integrated system health management (ISHM) capability is fundamentally linked to the management of data, information, and knowledge (DIaK) with the purposeful objective of determining the health of a system. It is akin to having a team of experts who are all individually and collectively observing and analyzing a complex system, and communicating effectively with each other in order to arrive at an accurate and reliable assessment of its health. In this paper, concepts, procedures, and approaches are presented as a foundation for implementing an intelligent systems ]relevant ISHM capability. The capability stresses integration of DIaK from all elements of a system. Both ground-based (remote) and on-board ISHM capabilities are compared and contrasted. The information presented is the result of many years of research, development, and maturation of technologies, and of prototype implementations in operational systems.

Figueroa, Fernando; Melcher, Kevin

2011-01-01

169

Epilogue: Systems Approaches and Systems Practice  

NASA Astrophysics Data System (ADS)

Each of the five systems approaches discussed in this volume: system dynamics (SD), the viable systems model (VSM), strategic options development and analysis (SODA), soft systems methodology (SSM) and critical systems heuristics (CSH) has a pedigree. Not in the sense of the sometimes absurd spectacle of animals paraded at dog shows. Rather, their pedigree derives from their systems foundations, their capacity to evolve and their flexibility in use. None of the five approaches has developed out of use in restricted and controlled contexts of either low or high levels of complicatedness. Neither has any one of them evolved as a consequence of being applied only to situations with either presumed stakeholder agreement on purpose, or courteous disagreement amongst stakeholders, or stakeholder coercion. The compilation is not a celebration of abstract ‘methodologies', but of theoretically robust approaches that have a genuine pedigree in practice.

Reynolds, Martin; Holwell, Sue

170

Space Launch and Temperature System: Avionics System  

NASA Technical Reports Server (NTRS)

This paper outlines the approach needed to develop the avionics system for a Space Launch and Transportation System. Avionics systems development, power, range safety, and simulations considerations are covered. Each of these topics includes the project design inputs that must be considered on the outset. Process steps are then provided to obtain the desired outputs. This paper discusses the importance of starting and staying with an overall systems plan that ensures that all avionics internal and external requirements are fulfilled. Key design, development, testing and implementations considerations are provided.

Gillis, Amelia; Luna, Steve; Schrock, Ken; Howard, Ricky; Kilpatrick, John (Technical Monitor)

2001-01-01

171

Aircraft systems cyber security  

Microsoft Academic Search

Presents a collection of slides from the author's conference presentation. Topics covered include: The Transition of Aircraft Systems; The Difference Between Cyber Security in Aircraft Systems and Information Technology (IT); Potential Cyber Security Threats to Aircraft Systems; and FAA Aircraft Systems Cyber Security Activities.

Raymond De Cerchio; Chris Riley

2012-01-01

172

Precision Battery Management System  

Microsoft Academic Search

The paper presents a new battery management system for a lithium ion battery pack for more efficient operation and sturdy. The new system contains an embedded microcontroller to track the energy content of cell battery, optimize the output current, and to provide extensive feedback of all the measurements taken. This system sends all data to a telemetry system so that

J. A. Asumadu; Mohammed Haque; Helio Vogel; Charles Willards

2005-01-01

173

Battery management system  

Microsoft Academic Search

A battery management system is described, comprising: a main battery; main battery charging system means coupled to the main battery for charging the main battery during operation of the main battery charging system means; at least one auxiliary battery; primary switching means for coupling the auxiliary battery to a parallel configuration with the main battery charging system means and with

Albright

1993-01-01

174

Linear Systems: Using Algebra  

NSDL National Science Digital Library

Students learn to solve a system of linear equations (2 equations with 2 variables) by substitution and elimination methods. They also review the definitions of consistent (independent and dependent) and inconsistent systems, and associate the number of solutions of a system with them. Detailed instructions guide students in using their graphing calculators to solve the systems of equations.

2009-06-14

175

Program (systems) engineering  

NASA Technical Reports Server (NTRS)

Program Systems Engineering applies the principles of Systems Engineering at the program level. Space programs are composed of interrelated elements which can include collections of projects, advanced technologies, information systems, etc. Some program elements are outside traditional engineering's physical systems, such as education and public outreach, public relations, resource flow, and interactions within the political environments.

Baroff, Lynn E.; Easter, Robert W.; Pomphrey, Richard B.

2004-01-01

176

Noncooperative rendezvous radar system  

NASA Technical Reports Server (NTRS)

A fire control radar system was developed, assembled, and modified. The baseline system and modified angle tracking system are described along with the performance characteristics of the baseline and modified systems. Proposed changes to provide additional techniques for radar evaluation are presented along with flight test data.

1974-01-01

177

Coaches as System Leaders  

ERIC Educational Resources Information Center

The role of school leadership--of principals and coaches--must be played out on a systems level to get widespread and sustainable improvement. Successful, whole-system education reform relies on capacity building, teamwork, pedagogy, and systemic reform. The strategies of good coaches and the right drivers for whole-system reform go hand in hand.…

Fullan, Michael; Knight, Jim

2011-01-01

178

The IRIDIUM communications system  

Microsoft Academic Search

A description is given of the IRIDIUM communication system, so-called because the system design originally consisted of 77 networked satellites, and the element iridium has the atomic number 77. The goal is to make instant global communications a reality. The system design now consists of 60 satellites, a system control facility, gateways, and subscriber units. Each of these components is

R. J. Leopold; A. Miller

1993-01-01

179

Universal Index System  

NASA Technical Reports Server (NTRS)

The Universal Index System (UIS) is an index management system that uses a uniform interface to solve the heterogeneity problem among database management systems. UIS provides an easy-to-use common interface to access all underlying data, but also allows different underlying database management systems, storage representations, and access methods.

Kelley, Steve; Roussopoulos, Nick; Sellis, Timos; Wallace, Sarah

1993-01-01

180

Remote hybrid power systems  

Microsoft Academic Search

This paper provides an overview of the emerging technology of remote, stand-alone electrical power systems featuring a renewable source (wind or photovoltaics [PV]) as well as a diesel generator, with or without an energy storage device. Other stand-alone power systems are discussed briefly, mainly to emphasize the domain of hybrid systems. The history of hybrid systems is reviewed, beginning with

C. D. Barley; C. B. Winn

1997-01-01

181

Electronic Document Supply Systems.  

ERIC Educational Resources Information Center

Describes electronic document delivery systems used by libraries and document image processing systems used for business purposes. Topics discussed include technical specifications; analogue read-only laser videodiscs; compact discs and CD-ROM; WORM; facsimile; ADONIS (Article Delivery over Network Information System); DOCDEL; and systems at the…

Cawkell, A. E.

1991-01-01

182

Next generation information systems  

Microsoft Academic Search

The Information Systems Analysis and Development (ISAD) Team of the Safeguards Systems Group at Los Alamos National Laboratory (LANL) has been developing web based information and knowledge management systems for sixteen years. Our vision is to rapidly and cost effectively provide knowledge management solutions in the form of interactive information systems that help customers organize, archive, post and retrieve nonproliferation

Nathan P Limback; Melanie A Medina; Michelle E Silva

2010-01-01

183

Communication Systems last lecture  

E-print Network

1 | 70 Communication Systems last lecture Chair of Communication Systems Department of Applied Sciences University of Freiburg 2009 #12;2 | 70 Communication Systems final lecture Start with last part, power control and hand-over ­ Authentication and security #12;3 | 70 Communication Systems GSM

Schindelhauer, Christian

184

Computer Center: CIBE Systems.  

ERIC Educational Resources Information Center

Differentiates between computer systems and Computers in Biological Education (CIBE) systems (computer system intended for use in biological education). Describes several CIBE stand alone systems: single-user microcomputer; single-user microcomputer/video-disc; multiuser microcomputers; multiuser maxicomputer; and local and long distance computer…

Crovello, Theodore J.

1982-01-01

185

Solar power system  

Microsoft Academic Search

Various control methods and means are disclosed for varying the temperature of vaporization of a solar-powered system so that the instantaneous power delivered by the heat engine of this system, or by a device driven by this engine, is a maximum for given conditions external to the power system, or to the power system and the driven device, respectively, while

Molivadas

1982-01-01

186

Dynamical Systems in Cosmology  

Microsoft Academic Search

Dynamical systems theory is especially well-suited for determining the possible asymptotic states (at both early and late times) of cosmological models, particularly when the governing equations are a finite system of autonomous ordinary differential equations. We begin with a brief review of dynamical systems theory. We then discuss cosmological models as dynamical systems and point out the important role of

Alan A. Coley

1999-01-01

187

Nevada System Higher Education  

E-print Network

Nevada System of Higher Education State Operating Budget Budget to Actual Comparison of 260 #12;NEVADA SYSTEM OF HIGHER EDUCATION BOARD OF REGENTS Dr. Jason Geddes, Chair Mr. Kevin J. Page of Regents OFFICERS OF THE NEVADA SYSTEM OF HIGHER EDUCATION Mr. Daniel J. Klaich, Chancellor Nevada System

Hemmers, Oliver

188

Nevada System Higher Education  

E-print Network

Nevada System of Higher Education State Operating Budget Budget to Actual Comparison #12;NEVADA SYSTEM OF HIGHER EDUCATION BOARD OF REGENTS Mr. Kevin J. Page, Chair Mr. Rick Trachok, Vice OFFICERS OF THE NEVADA SYSTEM OF HIGHER EDUCATION Mr. Daniel J. Klaich, Chancellor Nevada System of Higher

Hemmers, Oliver

189

Microsoft Analytics Platform System  

E-print Network

nodes, and the Hadoop Distributed File System (HDFS) storage. By integrating HDInsight with APS, you canBase Integrated Hadoop performance through HDInsight (optional) Introduction Microsoft Analytics Platform SystemMicrosoft Analytics Platform System Solution Brief #12;Microsoft Analytics Platform System

Chaudhuri, Surajit

190

Introduction to VLSI systems  

Microsoft Academic Search

The book is written to introduce all Electrical Engineering and Computer Science students to integrated system architecture and design. Combined with individual study in related research areas and participation in large system design projects, this text provides the basis for a graduate course-sequence in integrated systems. MOS devices and circuits are considered along with integrated system fabrication, data and control

Carver Mead; Lynn Conway

1980-01-01

191

Identification of propulsion systems  

NASA Technical Reports Server (NTRS)

This paper presents a tutorial on the use of model identification techniques for the identification of propulsion system models. These models are important for control design, simulation, parameter estimation, and fault detection. Propulsion system identification is defined in the context of the classical description of identification as a four step process that is unique because of special considerations of data and error sources. Propulsion system models are described along with the dependence of system operation on the environment. Propulsion system simulation approaches are discussed as well as approaches to propulsion system identification with examples for both air breathing and rocket systems.

Merrill, Walter; Guo, Ten-Huei; Duyar, Ahmet

1991-01-01

192

214 SYSTEMS BIOTECHNOLOGY  

E-print Network

Systems biology has been changing the way biological and biotechnological research is performed. Now, systems biological approaches can be taken to develop bioprocesses for the production of valuable drugs, commodity and fine chemicals, fuels, and polymers and other materials; this is termed systems biotechnology. Here I present the general strategies for systems biotechnology and several examples of applying systems biotechnological strategies for the development of bioprocesses for the efficient production of chemicals and materials. This also includes a strategy of systems metabolic engineering for the development of microbial strains. It is expected that systems biotechnology will be at the heart of successful industrial biotechnology towards low carbon green growth of the world

unknown authors

193

Lightning mapping system  

NASA Technical Reports Server (NTRS)

A Lightning Detection and Ranging (LDAR) System is being implemented at KSC in Florida. The first operational use is expected in the late summer of 1991. The system is designed to map the location of in-cloud and cloud-to-ground lightning based on the time of arrival (TOA) of electromagnetic radiation. The system detects very high frequency (VHF) radiation and designed to map the volumetric extent of lightning. The system implements two independent antenna arrays to provide a fast data quality check, as necessary for a real-time warning system. The system performance goals and a comparison with a similar system implemented in the mid-1970's is made.

Lennon, C.; Maier, L.

1991-01-01

194

T-systems and Y-systems in integrable systems  

Microsoft Academic Search

T- and Y-systems are ubiquitous structures in classical and quantum integrable systems. They are difference equations having a variety of aspects related to commuting transfer matrices in solvable lattice models, q-characters of Kirillov-Reshetikhin modules of quantum affine algebras, cluster algebras with coefficients, periodicity conjectures of Zamolodchikov and others, dilogarithm identities in conformal field theory, difference analog of L-operators in KP

Atsuo Kuniba; Tomoki Nakanishi; Junji Suzuki

2011-01-01

195

Selforganizing Systems Case Study: peertopeer systems ?  

E-print Network

Self­organizing Systems Case Study: peer­to­peer systems ? Emmanuelle Anceaume, Maria Gradinariu. This paper aims at providing a definition of self­organization for dynamic and open sys­ tems such as peer­to­peer networks. We propose a definition of self­organization based on the locality principle --- a node maintains

Roy, Matthieu

196

Communication Systems Chair of Communication Systems  

E-print Network

(standard CRC) ­ Flag 0111 1110 Communication Systems point-to-point protocol #12;9 | 29 PPP byte stuffing Serial Line Internet Protocol (SLIP) or Telco standards such as Link Access Protocol Balanced (LAPB) part configuration ­ Looped link detection via magic numbers in control protocol Communication Systems point

Schindelhauer, Christian

197

Systems Analysis of the UAE Education System  

ERIC Educational Resources Information Center

Purpose: This purpose of this paper is to examine the organization of the UAE educational system, its components, their goals, and finally their effectiveness. Design/methodology/approach: Three elements of the UAE education system were examined: the development; delivery; and evaluation and feedback. Findings: On analysis, it was found that there…

Gaad, Eman; Arif, Mohammed; Scott, Fentey

2006-01-01

198

Energy recovery system for refrigeration systems  

Microsoft Academic Search

The invention discloses an energy recovery system for heating water with by-product heat from a refrigeration system wherein a heat exchanger within a refrigerant compressor hot gas conduit may selectively heat water within a storage tank. The flow of water through the storage tank and heat exchanger is controlled by a pump operating during operation of the compressor, preferably, only

Ritchie

1979-01-01

199

System Development Planning via System Maturity Optimization  

Microsoft Academic Search

Many U.S. government agencies and their contractors have subscribed to using the prescriptive metric of technology readiness level (TRL) as a measure of maturity of an individual technology, with a view toward operational use in a system context. A comprehensive set of concerns becomes relevant when this metric is abstracted from an individual technology to a system context, which may

Jose Emmanuel Ramirez-Marquez; Brian J. Sauser

2009-01-01

200

APS control system operating system choice  

Microsoft Academic Search

The purpose of this document is to set down the reasons and decisions regarding what is an important choice for the APS Control System design staff, namely the choice of an operating system for its principle computer resources. Since the choice also may affect cost estimates and the design handbook, there is a further need to document the process. The

M. Knott; M. Kraimer; F. Lenkszus

1990-01-01

201

Regular Descriptor Linear Systems  

Microsoft Academic Search

\\u000a We have pointed out in Sect. 1.3 that regularity is a very important property for descriptor linear systems. It guarantees\\u000a the existence and uniqueness of solutions to descriptor linear systems. This chapter studies regular descriptor linear systems\\u000a and starts in Sect. 3.1 with the definition of regularity of descriptor linear systems and its relation with solutions of\\u000a descriptor linear systems.

Guang-Ren Duan

202

Automated Pilot Advisory System  

NASA Technical Reports Server (NTRS)

An Automated Pilot Advisory System (APAS) was developed and operationally tested to demonstrate the concept that low cost automated systems can provide air traffic and aviation weather advisory information at high density uncontrolled airports. The system was designed to enhance the see and be seen rule of flight, and pilots who used the system preferred it over the self announcement system presently used at uncontrolled airports.

Parks, J. L., Jr.; Haidt, J. G.

1981-01-01

203

Fluid infusion system  

NASA Technical Reports Server (NTRS)

Performance testing carried out in the development of the prototype zero-g fluid infusion system is described and summarized. Engineering tests were performed in the course of development, both on the original breadboard device and on the prototype system. This testing was aimed at establishing baseline system performance parameters and facilitating improvements. Acceptance testing was then performed on the prototype system to verify functional performance. Acceptance testing included a demonstration of the fluid infusion system on a laboratory animal.

1974-01-01

204

Evolvable synthetic neural system  

NASA Technical Reports Server (NTRS)

An evolvable synthetic neural system includes an evolvable neural interface operably coupled to at least one neural basis function. Each neural basis function includes an evolvable neural interface operably coupled to a heuristic neural system to perform high-level functions and an autonomic neural system to perform low-level functions. In some embodiments, the evolvable synthetic neural system is operably coupled to one or more evolvable synthetic neural systems in a hierarchy.

Curtis, Steven A. (Inventor)

2009-01-01

205

Photovoltaic systems and applications  

SciTech Connect

Abstracts are given of presentations given at a project review meeting held at Albuquerque, NM. The proceedings cover the past accomplishments and current activities of the Photovoltaic Systems Research, Balance-of-System Technology Development and System Application Experiments Projects at Sandia National Laboratories. The status of intermediate system application experiments and residential system analysis is emphasized. Some discussion of the future of the Photovoltaic Program in general, and the Sandia projects in particular is also presented.

Not Available

1982-01-01

206

Intelligent vision systems  

NASA Astrophysics Data System (ADS)

NASA's pursuit of reducing the size, weight, and cost of satellite systems, for advanced space systems, is providing a vital thrust to the development of systems-on-a-chip. Novel smart vision systems that incorporate active pixel photo-detectors, MEMs tunable etalons, electro-optical information processors, and applications of the novel smart vision system, including remote sensing, hyperspectral imaging, biomedical imaging and adaptive optics are discussed.

Clark, Natalie; Singh, Upendra N.

2002-09-01

207

Information and Intelligent Systems  

NSF Publications Database

Information and Intelligent Systems: Advancing Collaborative and Intelligent Systems and their Societal Implications. Research activities supported will result in discoveries in the field of Information and Intelligent Systems and the preparation of future generations of IT professionals with expertise in Information and Intelligent Systems. Digital Library and Archive projects must draw upon research in Collaborative Systems (e.g., information retrieval or human-computer interaction) or ...

208

System identification for passive linear quantum systems  

E-print Network

System identification is a key enabling component for the implementation of quantum technologies, including quantum control. In this paper, we consider the class of passive linear input-output systems, and investigate several basic questions: (1) which parameters can be identified? (2) Given sufficient input-output data, how do we reconstruct system parameters? (3) How can we optimize the estimation precision by preparing appropriate input states and performing measurements on the output? We show that minimal systems can be identified up to a unitary transformation on the modes, and systems satisfying a Hamiltonian connectivity condition called "infecting" are completely identifiable. We propose a frequency domain design based on a Fisher information criterion, for optimizing the estimation precision for coherent input state. As a consequence of the unitarity of the transfer function, we show that the Heisenberg limit with respect to the input energy can be achieved using non-classical input states.

Madalin Guta; Naoki Yamamoto

2013-03-15

209

Modeling Power Systems as Complex Adaptive Systems  

SciTech Connect

Physical analogs have shown considerable promise for understanding the behavior of complex adaptive systems, including macroeconomics, biological systems, social networks, and electric power markets. Many of today's most challenging technical and policy questions can be reduced to a distributed economic control problem. Indeed, economically based control of large-scale systems is founded on the conjecture that the price-based regulation (e.g., auctions, markets) results in an optimal allocation of resources and emergent optimal system control. This report explores the state-of-the-art physical analogs for understanding the behavior of some econophysical systems and deriving stable and robust control strategies for using them. We review and discuss applications of some analytic methods based on a thermodynamic metaphor, according to which the interplay between system entropy and conservation laws gives rise to intuitive and governing global properties of complex systems that cannot be otherwise understood. We apply these methods to the question of how power markets can be expected to behave under a variety of conditions.

Chassin, David P.; Malard, Joel M.; Posse, Christian; Gangopadhyaya, Asim; Lu, Ning; Katipamula, Srinivas; Mallow, J V.

2004-12-30

210

Embedded system based driver drowsiness detection system  

NASA Astrophysics Data System (ADS)

This paper presents a System-on-Chip (SoC) visual-based driver drowsiness detection system. The system is able to promptly detect the onset of driver drowsiness by monitoring in real-time the accumulated driver's PERCLOS, i.e. proportion of time driver's eyes are closed in a 1-minute interval through non-intrusive camera(s). FPGA hardware is used as its processing platform along with Viola-Jones object detection algorithm. Viola-Jones algorithm uses Haar-like features along with AdaBoost algorithm to achieve good detection performance.

Islam, Syed Zahidul; Mohd Ali, Mohd Alauddin; bin Jidin, Razali; Islam, Syed Zahurul

2010-02-01

211

Education Systemic Change Tools  

NSDL National Science Digital Library

The National School Boards Association provides this website as a guide to systemic change for those in the field of education. This site is broken up into three sections that explain what systemic change is, outline the process for systemic change, offer advice for difficulties along the way, and list resources for implementing systemic change in any educational organization âÂÂfrom the classroom to the federal level," including the section "Leading Systemic Change" for those who would like to take charge and put systemic change in their own hands.

2008-07-29

212

Verification of Adaptive Systems  

SciTech Connect

Adaptive systems are critical for future space and other unmanned and intelligent systems. Verification of these systems is also critical for their use in systems with potential harm to human life or with large financial investments. Due to their nondeterministic nature and extremely large state space, current methods for verification of software systems are not adequate to provide a high level of assurance for them. The combination of stabilization science, high performance computing simulations, compositional verification and traditional verification techniques, plus operational monitors, provides a complete approach to verification and deployment of adaptive systems that has not been used before. This paper gives an overview of this approach.

Pullum, Laura L [ORNL] [ORNL; Cui, Xiaohui [New York Institute of Technology (NYIT)] [New York Institute of Technology (NYIT); Vassev, Emil [Lero – The Irish Software Engineering Research Centre] [Lero – The Irish Software Engineering Research Centre; Hinchey, Mike [Lero – The Irish Software Engineering Research Centre] [Lero – The Irish Software Engineering Research Centre; Rouff, Christopher [Lockheed Martin Corporation] [Lockheed Martin Corporation; Buskens, Richard [Lockheed Martin Corporation] [Lockheed Martin Corporation

2012-01-01

213

Digital wireless control system  

NASA Astrophysics Data System (ADS)

The Digital Wireless Control System (DWCS) is designed to initiate high explosives safely while using a wireless remote control system. Numerous safety features have been designed into the fire control system to mitigate the hazards associated with remote initiation of high explosives. These safety features range from a telemetry (TM) fire control status system to mechanical timers and keyed power lockout switches. The environment, safety, and health (ES&H) Standard Operating Procedure (SOP) SP471970 is intended as a guide when working with the DWCS. This report describes the Digital Wireless Control System and outlines each component's theory of operation and its relationship to the system.

Smith, R.

1993-08-01

214

Space shuttle avionics system  

NASA Technical Reports Server (NTRS)

The Space Shuttle avionics system, which was conceived in the early 1970's and became operational in the 1980's represents a significant advancement of avionics system technology in the areas of systems and redundacy management, digital data base technology, flight software, flight control integration, digital fly-by-wire technology, crew display interface, and operational concepts. The origins and the evolution of the system are traced; the requirements, the constraints, and other factors which led to the final configuration are outlined; and the functional operation of the system is described. An overall system block diagram is included.

Hanaway, John F.; Moorehead, Robert W.

1989-01-01

215

Cooperating systems: Layered MAS  

NASA Technical Reports Server (NTRS)

Distributed intelligent systems can be distinguished by the models that they use. The model developed focuses on layered multiagent system conceived of as a bureaucracy in which a distributed data base serves as a central means of communication. The various generic bureaus of such a system is described and a basic vocabulary for such systems is presented. In presenting the bureaus and vocabularies, special attention is given to the sorts of reasonings that are appropriate. A bureaucratic model has a hierarchy of master system and work group that organizes E agents and B agents. The master system provides the administrative services and support facilities for the work groups.

Rochowiak, Daniel

1990-01-01

216

Inertial navigation systems analysis.  

NASA Technical Reports Server (NTRS)

This volume offers the avionic systems engineer a fundamental exposition of the mechanization and error analysis of inertial navigation systems. While the material is applicable to spacecraft and undersea navigation, emphasis is placed upon terrestrial applications on or slightly above the earth's surface. As a result, practical considerations are geared toward those aircraft navigation systems of particular current interest. Extensive use is made of perturbation techniques to develop linearized system equations, whose solutions closely approximate those obtained by nonlinear differential equations. A unified error analysis technique is developed that is applicable to virtually all system configurations. The technique provides a greatly simplified method for comparing the performance of competing system configurations.

Britting, K. R.

1971-01-01

217

Continuous system modeling  

NASA Technical Reports Server (NTRS)

A comprehensive and systematic introduction is presented for the concepts associated with 'modeling', involving the transition from a physical system down to an abstract description of that system in the form of a set of differential and/or difference equations, and basing its treatment of modeling on the mathematics of dynamical systems. Attention is given to the principles of passive electrical circuit modeling, planar mechanical systems modeling, hierarchical modular modeling of continuous systems, and bond-graph modeling. Also discussed are modeling in equilibrium thermodynamics, population dynamics, and system dynamics, inductive reasoning, artificial neural networks, and automated model synthesis.

Cellier, Francois E.

1991-01-01

218

Precision Pointing System Development  

SciTech Connect

The development of precision pointing systems has been underway in Sandia's Electronic Systems Center for over thirty years. Important areas of emphasis are synthetic aperture radars and optical reconnaissance systems. Most applications are in the aerospace arena, with host vehicles including rockets, satellites, and manned and unmanned aircraft. Systems have been used on defense-related missions throughout the world. Presently in development are pointing systems with accuracy goals in the nanoradian regime. Future activity will include efforts to dramatically reduce system size and weight through measures such as the incorporation of advanced materials and MEMS inertial sensors.

BUGOS, ROBERT M.

2003-03-01

219

Business System Planning Project System Requirements Specification  

SciTech Connect

The purpose of the Business Systems Planning Project System Requirements Specification (SRS) is to provide the outline and contents of the requirements for the CH2M HILL Hanford Group, Inc. (CHG) integrated business and technical information systems. The SRS will translate proposed objectives into the statement of the functions that are to be performed and data and information flows that they require. The requirements gathering methodology will use (1) facilitated group requirement sessions; (2) individual interviews; (3) surveys; and (4) document reviews. The requirements will be verified and validated through coordination of the technical requirement team and CHG Managers. The SRS document used the content and format specified in Lockheed Martin Services, Inc. Organization Standard Software Practices in conjunction with the Institute of Electrical and Electronics Engineers Standard 8340-1984 for Systems Requirements Documents.

NELSON, R.E.

2000-09-08

220

Power system interface and umbilical system study  

NASA Technical Reports Server (NTRS)

System requirements and basic design criteria were defined for berthing or docking a payload to the 25 kW power module which will provide electrical power and attitude control, cooling, data transfer, and communication services to free-flying and Orbiter sortie payloads. The selected umbilical system concept consists of four assemblies and command and display equipment to be installed at the Orbiter payload specialist station: (1) a movable platen assembly which is attached to the power system with EVA operable devices; (2) a slave platen assembly which is attached to the payload with EVA operable devices; (3) a fixed secondary platen permanently installed in the power system; and (4) a fixed secondary platen permanently installed on the payload. Operating modes and sequences are described.

1980-01-01

221

Enabling Systems Biology Approaches Through Microfabricated Systems  

PubMed Central

With the experimental tools and knowledge that have accrued from a long history of reductionist biology, we can now start to put the pieces together and begin to understand how biological systems function as an integrated whole. Here, we describe how microfabricated tools have demonstrated promise in addressing experimental challenges in throughput, resolution and sensitivity to support systems-based approaches to biological understanding. PMID:23984862

Zhan, Mei; Chingozha, Loice; Lu, Hang

2014-01-01

222

User Registration Systems for Distributed Systems  

NASA Astrophysics Data System (ADS)

As NASA’s Earth Observing System Data and Information System (EOSDIS) systems have evolved over the years, most of the EOSDIS data are now available to users via anonymous on-line access. Although the changes have improved the dissemination efficiency of earth science data, the anonymous access has made it difficult to characterize users, capture metrics on the value of EOSDIS and provide customized services that benefit users. As the number of web-based applications continues to grow, data centers and application providers have implemented their own user registration systems and provided new tools and interfaces for their registered users. This has led to the creation of independent registration systems for accessing data and interacting with online tools and services. The user profile information maintained at each of these registration systems is not consistent and the registration enforcement varies by system as well. This problem is in no way unique to EOSDIS and represents a general challenge to the distributed computing community. In a study done in 2007(http://www2007.org/papers/paper620.pd), the average user has approximately 7 passwords for about 25 accounts and enters a password 8 times a day. These numbers have only increased in the last three years. To try and address this, a number of solutions have been offered including Single Sign-On solutions using a common backend like Microsoft Active Directory or an LDAP server, trust based identity providers like OpenID, and various forms of authorization delegation like OAuth or SAML/XACML. This talk discusses the differences between authentication and authorization, the state of the more popular user registration solutions available for distributed use, and some of the technical and policy drivers that need to be considered when incorporating a user registration system into your application.

Murphy, K. J.; Cechini, M.; Pilone, D.; Mitchell, A.

2010-12-01

223

Computer Based Systems Engineering Workshop  

Microsoft Academic Search

Modern computer based systems are complex multi-systems consisting of many connected individual subsystems; each one of them is typically also a multicomputer system. The subsystems in a multi-system can be either geographically distributed or locally connected systems. Typical examples of computer based systems are medical systems, process control systems, communications systems, weapon systems and large information systems.\\u000a The development of

Jonah Z. Lavi; Ashok K. Agrawala; Raymond J. A. Buhr; Ken Jackson; Michael Jackson; Bernard Lang

1991-01-01

224

Integrated Systems Health Management for Intelligent Systems  

NASA Technical Reports Server (NTRS)

The implementation of an integrated system health management (ISHM) capability is fundamentally linked to the management of data, information, and knowledge (DIaK) with the purposeful objective of determining the health of a system. Management implies storage, distribution, sharing, maintenance, processing, reasoning, and presentation. ISHM is akin to having a team of experts who are all individually and collectively observing and analyzing a complex system, and communicating effectively with each other in order to arrive at an accurate and reliable assessment of its health. In this chapter, concepts, procedures, and approaches are presented as a foundation for implementing an ISHM capability relevant to intelligent systems. The capability stresses integration of DIaK from all elements of a system, emphasizing an advance toward an on-board, autonomous capability. Both ground-based and on-board ISHM capabilities are addressed. The information presented is the result of many years of research, development, and maturation of technologies, and of prototype implementations in operational systems.

Figueroa, Fernando; Melcher, Kevin

2011-01-01

225

System and method for creating expert systems  

NASA Technical Reports Server (NTRS)

A system and method provides for the creation of a highly graphical expert system without the need for programming in code. An expert system is created by initially building a data interface, defining appropriate Mission, User-Defined, Inferred, and externally-generated GenSAA (EGG) data variables whose data values will be updated and input into the expert system. Next, rules of the expert system are created by building appropriate conditions of the rules which must be satisfied and then by building appropriate actions of rules which are to be executed upon corresponding conditions being satisfied. Finally, an appropriate user interface is built which can be highly graphical in nature and which can include appropriate message display and/or modification of display characteristics of a graphical display object, to visually alert a user of the expert system of varying data values, upon conditions of a created rule being satisfied. The data interface building, rule building, and user interface building are done in an efficient manner and can be created without the need for programming in code.

Hughes, Peter M. (Inventor); Luczak, Edward C. (Inventor)

1998-01-01

226

JT-60 Control System  

SciTech Connect

The present status of the JT-60U control system is reported including its original design concept, the progress of the system, and various modifications since the JT-60 upgrade. This control system has features of a functionally distributed and hierarchical structure, using CAMAC interfaces initially, which have been replaced by versatile module Europe (VME)-bus interfaces, and a protective interlock system composed of both software and hard-wired interlock logics. Plant monitoring and control are performed by efficient data communication through CAMAC highways and Ethernet with TCP/IP protocols. Sequential control of plasma discharges is executed by a combination of a remodeled VME-bus system and a timing system. A real-time plasma control system and a human interface system have been continuously modified corresponding to the progress of JT-60U experiments.

Yonekawa, I.; Kawamata, Y.; Totsuka, T.; Akasaka, H.; Sueoka, M.; Kurihara, K.; Kimura, T. [Japan Atomic Energy Research Institute (Japan)

2002-09-15

227

Media Programmed Learning Systems  

ERIC Educational Resources Information Center

The science department of a Japanese technical high school developed a programmed learning system for first and second year science courses. Utilized are various machines and audiovisual equipment in a total media system. (Author/TS)

Butler, Lucius; Inoue, Kazuo

1972-01-01

228

Information retrieval system  

NASA Technical Reports Server (NTRS)

Generalized information storage and retrieval system capable of generating and maintaining a file, gathering statistics, sorting output, and generating final reports for output is reviewed. File generation and file maintenance programs written for the system are general purpose routines.

Berg, R. F.; Holcomb, J. E.; Kelroy, E. A.; Levine, D. A.; Mee, C., III

1970-01-01

229

System for rapid subtitling  

E-print Network

A system for rapid subtitling of audiovisual sequences was developed, and evaluated. This new system resulted in average time-savings of 50% over the previous work in the field. To subtitle a 27-minute English lecture, ...

Leonard, Sean Joseph

2005-01-01

230

Multiplex television transmission system  

NASA Technical Reports Server (NTRS)

Time-multiplexing system enables several cameras to share a single commercial television transmission channel. This system is useful in industries for visually monitoring several operating areas or instrument panels from a remote location.

Reed, W. R.

1967-01-01

231

Digestive System Movie  

MedlinePLUS

... People, Places & Things That Help Feelings Q&A Movies & More Quizzes Games Kids' Medical Dictionary En Español ... Pink Locker Society Movie: Digestive System KidsHealth > Kids > Movies & More > Movies > Movie: Digestive System Print A A ...

232

Instructional Systems: Which One?  

ERIC Educational Resources Information Center

Discusses the mystical aura attached to the notion of a systems approach to instruction, briefly reviews some of the instructional systems which have been advanced, and suggests a method for successful implementation of the process. (LS)

Lee, A. Maughan

1970-01-01

233

Central Nervous System Vasculitis  

MedlinePLUS

... headaches that last a long time strokes or transient ischemic attacks (“mini-strokes”) forgetfulness or confusion weakness ... cyclophosphamide (a medication that decreases the immune system’s response to autoimmune diseases), are generally used. In some ...

234

Absorption heat pump system  

DOEpatents

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, G.

1982-06-16

235

Human Body Systems Interactive  

NSDL National Science Digital Library

In this online interactive, studens are presented with a body system and a variety of organs. Students drag and drop all the organs that belong in that particular body system to a body who is missing his parts.

Sciencenetlinks.org

2010-06-02

236

Urban organizational systems  

E-print Network

General systems theory provides a conceptual framework for the integration of knowledge from a wide variety of specialized fields. Systems theory serves to synthesize, reconcile, and integrate knowledge making it possible ...

Morog, Joseph V

1981-01-01

237

Silver recovery system data  

SciTech Connect

In August of 1990 the Savannah River Site Photography Group began testing on a different type of silver recovery system. This paper describes the baseline study and the different phases of installation and testing of the system.

Boulineau, B.

1991-08-26

238

Male Reproductive System  

MedlinePLUS

The male reproductive system, like that of the female, consists of those organs whose function is to produce a new individual, i.e., to accomplish reproduction. This system consists of a pair of testes ...

239

Crowd-powered systems  

E-print Network

Crowd-powered systems combine computation with human intelligence, drawn from large groups of people connecting and coordinating online. These hybrid systems enable applications and experiences that neither crowds nor ...

Bernstein, Michael Scott

2012-01-01

240

Highly Autonomous Systems Workshop  

NASA Technical Reports Server (NTRS)

It is our aim by launching a series of workshops on the topic of highly autonomous systems to reach out to the larger community interested in technology development for remotely deployed systems, particularly those for exploration.

Doyle, R.; Rasmussen, R.; Man, G.; Patel, K.

1998-01-01

241

Systemic Amyloidosis Complicating Dermatoses.  

National Technical Information Service (NTIS)

Certain dermatoses may be complicated by systemic amyloidosis. The underlying disorders in eight of 100 patients with secondary systemic amyloidosis studied at autopsy were: hidradenitis suppurativa, stasis ulcers, psoriatic arthritis, basal cell carcinom...

M. H. Brownstein, E. B. Helwig

1970-01-01

242

System status display evaluation  

NASA Technical Reports Server (NTRS)

The System Status Display is an electronic display system which provides the crew with an enhanced capability for monitoring and managing the aircraft systems. A flight simulation in a fixed base cockpit simulator was used to evaluate alternative design concepts for this display system. The alternative concepts included pictorial versus alphanumeric text formats, multifunction versus dedicated controls, and integration of the procedures with the system status information versus paper checklists. Twelve pilots manually flew approach patterns with the different concepts. System malfunctions occurred which required the pilots to respond to the alert by reconfiguring the system. The pictorial display, the multifunction control interfaces collocated with the system display, and the procedures integrated with the status information all had shorter event processing times and lower subjective workloads.

Summers, Leland G.

1988-01-01

243

Acquisitions and Cataloguing Systems.  

National Technical Information Service (NTIS)

Automated systems for acquisitions and catalogue production for the Wessex Medical Library are outlined in this interim report, with some account of why particular decisions were made. Section A describes the acquisitions system and Section B describes th...

R. G. Woods

1971-01-01

244

STRATEGIC FOCUS: Sustainable Systems  

E-print Network

to apply sustain- ability principles to building and design, transportation and other fields, to green1010 STRATEGIC FOCUS: Sustainable Systems Biology doctoral student Tanya Lubansky uses quan and quantitative ecologists. Sustainable Systems in NJIT's Educational Programs Educational offerings

245

Whole Body Measurement System.  

National Technical Information Service (NTIS)

A biomedical system for quantitatively determining the volume and volume change of a human body under weightlessness conditions, over a period of time, is described. The system consists of an enclosed chamber having a defined volume and arranged for recei...

J. S. Ogle

1971-01-01

246

Transport in granular systems  

E-print Network

There are many situations in which a continuum view of granular systems does not fully capture the relevant mechanics. In order for engineers to be able to design systems for transporting granular materials, there needs ...

Wendell, Dawn M. (Dawn Marie), 1983-

2011-01-01

247

Intensive care alarm system  

NASA Technical Reports Server (NTRS)

Inductive loop has been added to commercially available call system fitted with earphone receiver. System transmits high frequency signals to nurse's receiver to announce patient's need for help without disturbing others.

Christensen, J. L.; Herbert, A. L.

1973-01-01

248

Absorption heat pump system  

DOEpatents

The efficiency of an absorption heat pump system is improved by conducting liquid from a second stage evaporator thereof to an auxiliary heat exchanger positioned downstream of a primary heat exchanger in the desorber of the system.

Grossman, Gershon (Oak Ridge, TN)

1984-01-01

249

Strapdown inertial systems  

NASA Astrophysics Data System (ADS)

A basic review of strapdown navigation systems is presented. Attention is given to general principles, coordinate transformations, and the navigation principle for ballistic missiles. Finally some examples of strapdown systems are considered.

Radix, J.-C.

1980-01-01

250

Imaging system (INEL)  

SciTech Connect

This progress report gives a brief description of the general automatic target recognition system algorithms developed for this project, and also summarizes the progress in fiscal 1991. An appendix discusses the proposed computer hardware for this system.

Partin, J.K.; Lassahn, G.D.; Davidson, J.R.

1991-10-01

251

Immune System and Disorders  

MedlinePLUS

Your immune system is a complex network of cells, tissues, and organs that work together to defend against germs. It helps ... to find and destroy them. If your immune system cannot do its job, the results can be ...

252

Burst synchronization detection system  

NASA Technical Reports Server (NTRS)

System uses digital logic and a voltage-controlled oscillator to obtain appropriate horizontal and vertical sync signals from the sync bursts contained in the original transmitted signal. It is useful in systems that exhibit considerable single amplitude fluctuation.

Lipoma, P. C.; Seay, B. P., Jr.

1970-01-01

253

Small asteroid system evolution  

E-print Network

Observations with radar, photometric and direct imaging techniques have discovered that multiple asteroid systems can be divided clearly into a handful of different morphologies, and recently, the discovery of small unbound asteroid systems called asteroid pairs have revolutionized the study of small asteroid systems. Simultaneously, new theoretical advances have demonstrated that solar radiation dictates the evolution of small asteroids with strong implications for asteroid internal structure. We review our current understanding of how small asteroid systems evolve and point to the future.

Jacobson, Seth A

2014-01-01

254

Intermediate water recovery system  

NASA Technical Reports Server (NTRS)

A water recovery system for collecting, storing, and processing urine, wash water, and humidity condensates from a crew of three aboard a spacecraft is described. The results of a 30-day test performed on a breadboard system are presented. The intermediate water recovery system produced clear, sterile, water with a 96.4 percent recovery rate from the processed urine. Recommendations for improving the system are included.

Deckman, G.; Anderson, A. R. (editor)

1973-01-01

255

Modular integrated video system  

SciTech Connect

The Modular Integrated Video System (MIVS) is intended to provide a simple, highly reliable closed circuit television (CCTV) system capable of replacing the IAEA Twin Minolta Film Camera Systems in those safeguards facilities where mains power is readily available, and situations where it is desired to have the CCTV camera separated from the CCTV recording console. This paper describes the MIVS and the Program Plan which is presently being followed for the development, testing, and implementation of the system.

Gaertner, K.J.; Heaysman, B.; Holt, R.; Sonnier, C.

1986-01-01

256

Earth System Science  

NSDL National Science Digital Library

Understanding climate requires understanding that Earth is a holistic system of dynamic, interacting components. Furthermore, understanding how the Earth system works is essential for making informed decisions about how to manage, protect, and sustain our planet and its natural resources. This EarthLabs module helps students understand their world as an interconnected living system. Students learn to identify the parts of the Earth system and the processes that connect them, starting locally and gradually expanding their view to regional and global scales.

Bardar, Erin; Haddad, Nick

257

Lithium battery management system  

DOEpatents

Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; and a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold. A method of managing the temperature of a lithium battery system is also included.

Dougherty, Thomas J. (Waukesha, WI)

2012-05-08

258

Space power systems technology  

NASA Technical Reports Server (NTRS)

Reported here is a series of studies which examine several potential catalysts and electrodes for some fuel cell systems, some materials for space applications, and mathematical modeling and performance predictions for some solid oxide fuel cells and electrolyzers. The fuel cell systems have a potential for terrestrial applications in addition to solar energy conversion in space applications. Catalysts and electrodes for phosphoric acid fuel cell systems and for polymer electrolyte membrane (PEM) fuel cell and electrolyzer systems were examined.

Coulman, George A.

1994-01-01

259

TMACS system description  

SciTech Connect

This document provides a description of the Tank Monitor and Control System (TMACS). It is intended as an introduction for those persons unfamiliar with the system as well as a reference document for the users, maintenance personnel, and system designers. In addition to describing the system, the document outlines the associated drawing documentation, provides maintenance and spare parts information, and discusses other TMACS documents that provide additional detail

Scaief, C.C.

1995-10-17

260

Photonic systems at CITEQ  

Microsoft Academic Search

CITEQ is a small R&D company owned by Hydro-Quebec, a leading designer and operator of large-scale power transmission systems, and ABB, removed for its expertise in the design and manufacture of power transmission equipment and systems. CITEQ undertook some applied research efforts in photonic systems. Naturally, the dielectric nature of photonic systems is a great advantage for the application of

Alain C. Houle

1998-01-01

261

Laser pulse synthesis system  

US Patent & Trademark Office Database

A laser pulse synthesis system is provided. A further aspect of the present system uses a phase-only modulator to measure ultrashort laser pulses. An additional aspect achieves interferences between split subpulses even though the subpulses have different frequencies. Yet another aspect of a laser system employs multi-comb phase shaping of a laser pulse. In another aspect, a laser system includes pulse characterization and arbitrary or variable waveform generation through spectral phase comb shaping.

2014-03-18

262

Space station power system  

NASA Technical Reports Server (NTRS)

The major requirements and guidelines that affect the space station configuration and power system are explained. The evolution of the space station power system from the NASA program development-feasibility phase through the current preliminary design phase is described. Several early station concepts are described and linked to the present concept. Trade study selections of photovoltaic system technologies are described in detail. A summary of present solar dynamic and power management and distribution systems is also given.

Baraona, Cosmo R.

1987-01-01

263

Open quantum system identification  

E-print Network

Engineering quantum systems offers great opportunities both technologically and scientifically for communication, computation, and simulation. The construction and operation of large scale quantum information devices presents a grand challenge and a major issue is the effective control of coherent dynamics. This is often in the presence of decoherence which further complicates the task of determining the behaviour of the system. Here, we show how to determine open system Markovian dynamics of a quantum system with restricted initialisation and partial output state information.

Sophie G. Schirmer; Daniel K. L. Oi; Weiwei Zhou; Erling Gong; Ming Zhang

2012-05-28

264

Digestive and Circulatory System  

NSDL National Science Digital Library

What are key parts in the Circulatory and Digestive System? First, read the Digestive System Text. After reading the text, write the steps of digestion if you were eating a pizza. Write two interesting facts. Next, read the Text about Circulatory System. Describe what you learned. Write two interesting facts. Next, watch and listen to the Circulatory System Song. Tell me what you liked or did not like about the song. Did it help you ...

Kuenzli, Ms.

2010-03-25

265

THE UNIVERSITY OF SOUTH FLORIDA SYSTEM (USF SYSTEM)  

E-print Network

THE UNIVERSITY OF SOUTH FLORIDA SYSTEM (USF SYSTEM) STRATEGIC PLAN of South Florida System is a young and emerging system that currently includes and their own detailed strategic plans. The USF System was formed to bring

Meyers, Steven D.

266

Designing resilient, sustainable systems.  

PubMed

Pursuit of sustainable development requires a systems approach to the design of industrial product and service systems. Although many business enterprises have adopted sustainability goals, the actual development of sustainable systems remains challenging because of the broad range of economic, environmental and social factors that need to be considered across the system life cycle. Traditional systems engineering practices try to anticipate and resist disruptions but may be vulnerable to unforeseen factors. An alternative is to design systems with inherent "resilience" bytaking advantage of fundamental properties such as diversity, efficiency, adaptability, and cohesion. Previous work on sustainable design has focused largely upon ecological efficiency improvements. For example, companies have found that reducing material and energy intensity and converting wastes into valuable secondary products creates value for shareholders as well as for society at large. To encourage broader systems thinking, a design protocol is presented that involves the following steps: identifying system function and boundaries, establishing requirements, selecting appropriate technologies, developing a system design, evaluating anticipated performance, and devising a practical means for system deployment. The approach encourages explicit consideration of resilience in both engineered systems and the larger systems in which they are embedded. PMID:14700317

Fiksel, Joseph

2003-12-01

267

Lithium battery management system  

Microsoft Academic Search

Provided is a system for managing a lithium battery system having a plurality of cells. The battery system comprises a variable-resistance element electrically connected to a cell and located proximate a portion of the cell; and a device for determining, utilizing the variable-resistance element, whether the temperature of the cell has exceeded a predetermined threshold. A method of managing the

Thomas J

2012-01-01

268

Exhaust gas recirculation system  

Microsoft Academic Search

An exhaust gas recirculation system for an internal combustion engine is disclosed in which an exhaust gas control valve and a pressure regulating valve is constructed as one body to facilitate the mounting of the system on the engine and to improve the response characteristic of the system. Also, the chamber of the pressure regulating valve opposite to the chamber

S. Hayashi; N. Shibata; Y. Takahara; S. Yamada

1981-01-01

269

Exhaust gas recirculation system  

Microsoft Academic Search

An exhaust gas recirculation system for an internal combustion engine. The internal combustion engine including at least one combustion chamber; an intake mechanism for delivering a combustible fluid mixture to the combustion chamber; an ignition system for igniting the combustible mixture; and an exhaust system for carrying exhaust fluid produced by the combustion of the combustible fluid mixture away from

Freesh

1982-01-01

270

Operating System Resource Management  

E-print Network

Operating System Resource Management Date: Monday, September 27, 2010 Time: 2:00 ­ 3:00 pm Location allocation and de-allocation by an operating system of processor cores, memory pages, and various types constrained. This talk will propose a scheme for addressing the operating system resource management problem

271

Solving Systems of Equations  

NSDL National Science Digital Library

Learn how to solve systems of linear equations by graphing, substitution, and elimination. As we discovered in our Pet Sitters Unit, systems of equations are a useful way to model and solve real-world situations in business. They are also useful in science and social science applications. This online unit will help you become an expert at solving systems of linear equations. 1) ...

Ball, Mrs.

2012-09-13

272

Expert Systems: A Tutorial.  

ERIC Educational Resources Information Center

Overview of expert systems (intelligent computer applications that use data, a knowledge base, and a control mechanism to solve problems) highlights history of expert systems; construction (human element, knowledge acquisition and learning, system architecture); limitations; issues and trends; and implications for information science. Thirty-three…

Yaghmai, N. Shahla; Maxin, Jacqueline A.

1984-01-01

273

Special Education Resource System.  

ERIC Educational Resources Information Center

The guide to the Special Education Resource System (SERS) of the Flour Bluff (Texas) school system contains policies and procedures regarding organization, services, and process of the system. Noted is the SERS purpose of providing information and access to appropriate instructional media and materials for special education personnel. Briefly…

Kampert, George J.

274

Geothermal expansion wellhead system  

Microsoft Academic Search

A geothermal expansion wellhead system is provided which adapts the wellhead and control valves to the casing in the wellbore. The system suspends and seals the casing while expanding and contracting during geothermal operations at temperatures up to 550° F. and above. The system consists of an expansion spool in which there is mounted an expansion mandrel which is secured

1985-01-01

275

Infrastructure analysis system (IAS)  

Microsoft Academic Search

The Senior Policy Group, advisors to managers of the National Capital Region (DC, MD, VA) needs a decision aid tool to help in appropriating critical infrastructure protection funds. The proposed system is designed to work with data from energy, water, and healthcare sectors. The system addresses the combined problem of network degradation, and analysis. The system will also provide planning

Y. M. Ashparie; Oluwaseyi Pius Bashorun; Greg Joseph Koch; G. R. Siegel; Petko Traoumir Stoyanov

2005-01-01

276

Waste heat recovery system  

Microsoft Academic Search

A waste heat recovery system for use with refrigeration means and a hot water reservoir is disclosed. The system is intended for use with refrigeration means of the type including a compressor and a condenser through which a compressible refrigerant is circulated. The system includes a heat exchanger having a refrigerant passage and a water passage mutually coupled in heat

G. W. Keller; R. J. Yaeger

1980-01-01

277

Mining Your Automated System.  

ERIC Educational Resources Information Center

Four articles address issues of collecting, compiling, reporting, and interpreting statistics generated by automated library systems for administrative decision making. Topics include using a management information system to forecast growth and assess areas for downsizing; statistics for collection development and analysis; and online system

Larsen, Patricia M., Ed.; And Others

1996-01-01

278

Interpretation Intelligent Systems Laboratory  

E-print Network

1 TENS Text Interpretation Intelligent Systems Laboratory University of Wollongong TENS Text and delivering the text data to the user by electrically stimulating the fingers. Intelligent Systems Laboratory ­ University of Wollongong #12;2 The TENS Unit Intelligent Systems Laboratory ­ University of Wollongong

Ward, Koren

279

Systemic Change in Education.  

ERIC Educational Resources Information Center

This book provides new tools for thinking about and designing the education system. Four sections, each with its own introduction, follow Charles M. Reigeluth's introductory chapter, "Introduction: The Imperative for Systemic Change." Section 1 describes some theoretical frameworks for understanding the "big ideas" of system design. It includes:…

Reigeluth, Charles M., Ed.; Garfinkle, Robert J., Ed.

280

Thermochemical energy storage systems  

Microsoft Academic Search

A thermochemical energy storage system is based on a reversible chemical reaction which consumes heat when proceeding in one direction and releases heat when proceeding in the opposite direction. The paper presents an overview of chemical reactions which can be used in a thermochemical energy storage (CES) system. Selection criteria for candidate CES systems are presented. Emphasis is on thermal

E. W. Schmidt; P. A. Lowe

1976-01-01

281

Fertilizers in agroforestry systems  

Microsoft Academic Search

This review encompasses results of fertilization experiments on several agroforestry systems—alley cropping, perennial shade systems, home gardens—in which fertilizer use is a likely management alternative. Fertilizer response was found to be most common in alley cropping, variable in perennial shade systems, and rarely reported in home gardens. Level of nutrient removal in harvested products is probably the overriding factor in

L. T. Szott; D. C. L. Kass

1993-01-01

282

FUNDAMENTALS OF TELEVISION SYSTEMS.  

ERIC Educational Resources Information Center

DESIGNED FOR A READER WITHOUT SPECIAL TECHNICAL KNOWLEDGE, THIS ILLUSTRATED RESOURCE PAPER EXPLAINS THE COMPONENTS OF A TELEVISION SYSTEM AND RELATES THEM TO THE COMPLETE SYSTEM. SUBJECTS DISCUSSED ARE THE FOLLOWING--STUDIO ORGANIZATION AND COMPATIBLE COLOR TELEVISION PRINCIPLES, WIRED AND RADIO TRANSMISSION SYSTEMS, DIRECT VIEW AND PROJECTION…

KESSLER, WILLIAM J.

283

Annual cycle energy system  

Microsoft Academic Search

The annual cycle energy system (ACES) program which incorporates in a practical system the outstanding energy conservation potential that exists when the unidirectional heat pump and the interseasonal storage of energy are combined to provide heating, cooling, and domestic hot water to buildings is described. Information on the system, its applicability to different geographic areas, and the methodology for designing

R. E. Minturn

1981-01-01

284

A Miniature Turbocompressor System  

Microsoft Academic Search

The trend in compressors for fuel cells, heat pumps, aerospace and automotive air pressurization, heating, ventilation and air conditioning systems, is towards ultra-compact size and high efficiency. This can be achieved by increasing the rotational speed and employing new electrical drive system technology and materials. This paper presents a miniature, electrically driven turbocompressor system running at a speed of 500

C. Zwyssig; D. Krähenbühl; H. Weser; J. W. Kolar

285

Lightweight Monorail Transport System  

NASA Technical Reports Server (NTRS)

Report proposes monorail transportation system for zero-gravity environment. System carries materials and parts between locations on space station. Includes tubular rails instead of open channels usually found in overhead conveyor systems. Since resistance to torque of closed tube greater than that of open channel for same amount of material, tubular monorail designed for higher loads or for greater spacing between support points.

Weir, Harold F.; Wood, Kenneth E.; Strecker, Myron T.

1987-01-01

286

Dynamic Systems, Measurement,  

E-print Network

Journal of Dynamic Systems, Measurement, and Control Technical Briefs Remote Vibration Control vibrations at the output of concern, while other parts of the system remain oscillating in such a way for vibration suppression of distributed-parameter systems see, e.g., 1­5 . However, to the author's knowledge

Singhose, William

287

Neutron radiographic viewing system  

NASA Technical Reports Server (NTRS)

Neutron radiographic viewing system consisting of camera head and control processor is developed for use in nondestructive testing applications. Camera head consists of neutron-sensitive image intensifier system, power supply, and SEC vidicon camera head. Both systems, with their optics, are housed on test mount.

Leysath, W.; Brown, R. L.

1972-01-01

288

Football player ranking systems  

Microsoft Academic Search

The TROIKA player selection system has been the first breakthrough in the application techniques in the application of computer and statistical techniques in the area of personnel ranking in sports. The success of such a system can be evidenced by the fact that 23 of the 26 professional football clubs use a computerized system for guidance at the yearly draft

Atam Lalchandani

1971-01-01

289

Egyptian Caste System  

NSDL National Science Digital Library

Understand the culture, character, and societal characteristics of different classes in the ancient Egyptian caste system Understand the culture, character, and societal characteristics of different classes in the ancient Egyptian caste system Go to these sites to learn about the Egyptian Caste System ...

Issen, Ms.

2009-09-17

290

Microelectronics bioinstrumentation systems  

NASA Technical Reports Server (NTRS)

Microelectronic bioinstrumentation systems to be employed in the Cardiovascular Deconditioning Program were developed. Implantable telemetry systems for long-term monitoring of animals on earth were designed to collect physiological data necessary for the understanding of the mechanisms of cardiovascular deconditioning. In-flight instrumentation systems, microelectronic instruments, and RF powering techniques for other life science experiments in the NASA program were studied.

Ko, W. H.

1977-01-01

291

Jupiter System Observer  

NASA Technical Reports Server (NTRS)

This slide presentation reviews the scientific philosophy that is guiding the planning behind the Jupiter System Observer (JSO). The JSO would be a long-term platform for studying Jupiter and the complete Jovian system. The goal is to advance the understanding of the fundamental processes of planetary systems, their formation and evolution.

Senske, Dave; Prockter, Louise

2008-01-01

292

Astromag data system concept  

NASA Technical Reports Server (NTRS)

A feasible, top-level data system is defined that could accomplish and support the Astromag Data System functions and interfaces necessary to support the scientific objectives of Astromag. This data system must also be able to function in the environment of the Space Station Freedom Manned Base (SSFMB) and other anticipated NASA elements.

Roos, Darrell; Cheng, Chieh-San; Newsome, Penny; Nath, Nitya

1989-01-01

293

Complex systems and valuation  

Microsoft Academic Search

Ecological and economic systems are undeniably complex. Whereas a goal of delineating ‘ecosystem services’ is to make readily apparent some of the important ways in which ecosystems underpin human welfare, insights are also gained by appreciating the nonlinear dynamic properties of ecosystems. In this paper, we review some of the relevant characteristics of complex systems. Ecosystems and economic systems share

Karin E. Limburg; Robert V. O'neill; Robert Costanza; Stephen Farber

2002-01-01

294

Training Management System  

ERIC Educational Resources Information Center

This paper describes a training management system developed by the Center for Development of Social Services. It is a set of practical, systematic procedures designed to manage and evaluate training programs. It is a complete model that meets the necessary criteria for competency-based training system. The system integrates the complex procedures…

McCowan, Richard J.

1998-01-01

295

System integration report  

NASA Technical Reports Server (NTRS)

Several areas that arise from the system integration issue were examined. Intersystem analysis is discussed as it relates to software development, shared data bases and interfaces between TEMPUS and PLAID, shaded graphics rendering systems, object design (BUILD), the TEMPUS animation system, anthropometric lab integration, ongoing TEMPUS support and maintenance, and the impact of UNIX and local workstations on the OSDS environment.

Badler, N. I.; Korein, J. D.; Meyer, C.; Manoochehri, K.; Rovins, J.; Beale, J.; Barr, B.

1985-01-01

296

Energy Systems Laboratory Groundbreaking  

ScienceCinema

INL recently broke ground for a research facility that will house research programs for bioenergy, advanced battery systems, and new hybrid energy systems that integrate renewable, fossil and nuclear energy sources. Here's video from the groundbreaking ceremony for INL's new Energy Systems Laboratory. You can learn more about CAES research at http://www.facebook.com/idahonationallaboratory.

Hill, David; Otter, C.L.; Simpson, Mike; Rogers, J.W.;

2013-05-28

297

Aircraft fuel system simulation  

Microsoft Academic Search

It is noted that the design, development, and test of aerospace fuel and propellant systems is becoming a more complex problem. In particular, fuel and propellant systems are being asked to perform functions such as vehicle center of gravity control, thermal management, and damage control. These flight-critical functions, combined with the progress of new fuel system controllers toward an integrated

T. G. Davis

1990-01-01

298

Pure subtype systems  

Microsoft Academic Search

This paper introduces a new approach to type theory called pure subtype systems . Pure subtype systems differ from traditional approaches to type theory (such as pure type systems) because the theory is based on subtyping, rather than typing. Proper types and typing are completely absent from the theory; the subtype relation is defined directly over objects. The traditional typing

DeLesley S. Hutchins

2010-01-01

299

Magnetic propulsion systems  

Microsoft Academic Search

Magnetic propulsion systems are based on the direct interaction of the vehicle's own magnetic field with the natural magnetic field, particularly the geomagnetic one, without using jet propulsion. Three such systems are reviewed in the order of their feasibility of automatic control over the thrust force vector. One of these magnetic propulsion systems permits partial control and is competitive with

Valentine Pulatov

2001-01-01

300

Automotive energy management system  

SciTech Connect

A hydromechanical/hydrostatic automotive energy management system is described that is comprised of two hydraulic units, the system adapted to provide: an efficient, continuously variable optimal transmission ratio, an intermittent optimal engine operation in city traffic and regenerative braking, thereby, the system is able to reduce a car's fuel consumption by as much as one half while improving drivability.

Shiber, S.

1980-09-23

301

Corridor Integrated Weather System  

Microsoft Academic Search

n Flight delays are now a major problem in the U.S. National Airspace System. A significant fraction of these delays are caused by reductions in en route capacity due to severe convective weather. The Corridor Integrated Weather System (CIWS) is a fully automated weather analysis and forecasting system designed to support the development and execution of convective weather impact mitigation

James E. Evans; Elizabeth R. Ducot

2006-01-01

302

TFTR bakeout system  

Microsoft Academic Search

A system was designed and installed on the Tokamak Fusion Test Reactor (TFTR) to monitor temperatures and to control electrical heaters for 150°C bakeout. This system, an adjunct to the hot air vacuum vessel heating system, is used for heating vacuum vessel port covers, neutral beam ducts, and diagnostic vacuum enclosures contiguous with the main vacuum vessel. The control scheme

S. Goldfurb; W. Ponton

1985-01-01

303

AWWA Small Systems Program  

Microsoft Academic Search

To better help small water systems comply with increasingly stringent drinking water regulations, AWWA has established a Small Systems Program as a component of the Technical and Professional Activities Department. All association efforts to assist small systems have been consolidated within the program, the primary objective of which is outreach education through information dissemination and technical assistance at the section

Mark A. Scharfenaker

1988-01-01

304

Coal systems analysis  

Microsoft Academic Search

This collection of papers provides an introduction to the concept of coal systems analysis and contains examples of how coal systems analysis can be used to understand, characterize, and evaluate coal and coal gas resources. Chapter are: Coal systems analysis: A new approach to the understanding of coal formation, coal quality and environmental considerations, and coal as a source rock

2005-01-01

305

Multisensor Fireproof Alarm System  

Microsoft Academic Search

According to present situation and unsaved problems of home fireproof alarm system, the intelligent fireproof alarm system based on public telephone net is introduced. In the system, flammable gas sensor, temperature sensor and smoke sensor are used as the detection devices; the Single Chip Microprocessor (SCM) is used as the control core unit; and the intelligent alarm function is accomplished

Lin Jiang; Jian Xun Jin; Yan Xia Wang

2011-01-01

306

Idaho Explosives Detection System  

Microsoft Academic Search

The Idaho Explosives Detection System was developed at the Idaho National Laboratory (INL) to respond to threats imposed by delivery trucks potentially carrying explosives into military bases. A full-scale prototype system has been built and is currently undergoing testing. The system consists of two racks, one on each side of a subject vehicle. Each rack includes a neutron generator and

Edward L. Reber; Larry G. Blackwood; Andrew J. Edwards; J. Keith Jewell; Kenneth W. Rohde; Edward H. Seabury; Jeffery B. Klinger

2005-01-01

307

Swashplate control system  

NASA Technical Reports Server (NTRS)

A mechanical system to control the position of a rotating swashplate is developed. This system provides independent lateral cyclic, longitudinal cyclic and collective pitch control of a helicopter rotor attached to the swashplate, without use of a mixer box. The system also provide direct, linear readout of cyclic and collective swashplate positions.

Peyran, Richard J.; Laub, Georgene H.; Morse, H. Andrew

1987-01-01

308

Firefighter's Breathing System  

NASA Technical Reports Server (NTRS)

System, based on open-loop demand-type compressed air concept, is lighter and less bulky than former systems, yet still provides thirty minutes of air supply. Comfort, visibility, donning time, and breathing resistance have been improved. Apparatus is simple to recharge and maintain and is comparable in cost to previously available systems.

Mclaughlan, P. B.; Giorgini, E. A.; Sullivan, J. L.; Simmonds, M. R.; Beck, E. J.

1976-01-01

309

Designing photovoltaic systems  

Microsoft Academic Search

Photovoltaic system design understanding has matured rapidly in the last decade. Initially the design process emphasized detailed modeling, load match, and on-site energy storage. This entire approach ended once the systems were allowed to operate interactively with the utility. Current design thinking emphasizes system energy cost in relation to utility avoided cost. This leads to a new logic that allows

1987-01-01

310

Cooling Water Systems Module  

NSDL National Science Digital Library

The Center for the Advancement of Process Technology presents this free sample module on cooling water systems in the process industry. The material includes 21 slides and will help learners understand related terms, the purpose of the basic equipment involved in cooling water systems and the safety, health and environmental concerns involved with these systems.

2013-01-04

311

INSENS sensor system  

Microsoft Academic Search

This paper describes an unattended ground sensor system that has been developed for the immigration and Naturalization Service (INS). The system, known as INSENS, was developed at the Lawrence Livermore National Laboratory for use by the United States Border Patrol. This system assists in the detection of illegal entry of aliens and contraband (illegal drugs, etc.) into the United States

D. W. Myers; J. Baker; D. M. Benzel; D. A. Fuess

1993-01-01

312

Umbilical connect systems.  

NASA Technical Reports Server (NTRS)

Umbilical connect systems were studied for the purpose of developing techniques, specifications, and hardware design concepts for prototype systems to be used in the space shuttle program. New techniques are described which permit rapid and reliable mating, connection, and checkout of umbilical carrier assemblies and couplings for vehicle services (cryogenic, electrical, pneumatic, and hydraulic systems).

Valkema, D.

1972-01-01

313

Systems engineering management plans  

Microsoft Academic Search

The Systems Engineering Management Plan (SEMP) is a comprehensive and effective tool used to assist in the management of systems engineering efforts. It is intended to guide the work of all those involved in the project. The SEMP is comprised of three main sections: technical project planning and control, systems engineering process, and engineering specialty integration. The contents of each

Tamara S

2009-01-01

314

Petascale system management experiences.  

SciTech Connect

Petascale High-Performance Computing (HPC) systems are among the largest systems in the world. Intrepid, one such system, is a 40,000 node, 556 teraflop Blue Gene/P system that has been deployed at Argonne National Laboratory. In this paper, we provide some background about the system and our administration experiences. In particular, due to the scale of the system, we have faced a variety of issues, some surprising to us, that are not common in the commodity world. We discuss our expectations, these issues, and approaches we have used to address them. HPC systems are a bellwether for computing systems at large, in multiple regards. HPC users are motivated by the need for absolute performance; this results in two important pushes. HPC users are frequently early adopters of new technologies and techniques. Successful technologies, like Infiniband, prove their value in HPC before gaining wider adoption. Unfortunately, this early adoption alone is not sufficient to achieve the levels of performance required by HPC users; parallelism must also be harnessed. Over the last 15 years, beowulf clustering has provided amazing accessibility to non-HPC-savvy and even non-technical audiences. During this time, substantial adoption of clustering has occurred in many market segments unrelated to computational science. A simple trend has emerged: the scale and performance of high-end HPC systems are uncommon at first, but become commonplace over the course of 3-5 years. For example, in early 2003, several systems on the Top500 list consisted of either 1024 nodes or 4096-8192 cores. In 2008, such systems are commonplace. The most recent generation of high-end HPC systems, so called petascale systems, are the culmination of years of research and development in research and academia. Three such systems have been deployed thus far. In addition to the 556 TF Intrepid system at Argonne National Laboratory, a 596 TF Blue Gene/L-based system has been deployed at Lawrence Livermore National Laboratory, and a 504 TF Opteron-based system has been deployed at Texas Advanced Computing Center (TACC). Intrepid is comprised of 40,960 nodes with a total of 163,840 cores. While systems like these are uncommon now, we expect them to become more widespread in the coming years. The scale of these large systems impose several requirements upon system architecture. The need for scalability is obvious, however, power efficiency and density constraints have become increasingly important in recent years. At the same time, because the size of administrative staff cannot grow linearly with the system size, more efficient system management techniques are needed. In this paper we will describe our experiences administering Intrepid. Over the last year, we have experienced a number of interesting challenges in this endeavor. Our initial expectation was for scalability to be the dominant system issue. This expectation was not accurate. Several issues expected to have minor impact have played a much greater role in system operations. Debugging, due to the large numbers of components used in scalable system operations, has become a much more difficult endeavor. The system has a sophisticated monitoring system, however, the analysis of this data has been problematic. These issues are not specific to HPC workloads in any way, so we expect them to be of general interest. This paper consists of three major parts. First, we will provide a detailed overview of several important aspects of Intrepid's hardware and software. In this, we will highlight aspects that have featured prominently in our system management experiences. Next, we will describe our administration experiences in detail. Finally, we will draw some conclusions based on these experiences. In particular, we will discuss the implications for the non-HPC world, system managers, and system software developers.

Desai, N.; Bradshaw, R.; Lueninghoener, C.; Cherry, A.; Coghlan, S.; Scullin, W. (LCF); ( MCS)

2008-01-01

315

Electric system restructuring and system reliability  

NASA Astrophysics Data System (ADS)

In 1996 the California legislature passed AB 1890, explicitly defining economic benefits and detailing specific mechanisms for initiating a partial restructuring the state's electric system. Critics have since sought re-regulation and proponents have asked for patience as the new institutions and markets take shape. Other states' electric system restructuring activities have been tempered by real and perceived problems in the California model. This study examines the reduced regulatory controls and new constraints introduced in California's limited restructuring model using utility and regulatory agency records from the 1990's to investigate effects of new institutions and practices on system reliability for the state's five largest public and private utilities. Logit and negative binomial regressions indicate negative impact from the California model of restructuring on system reliability as measured by customer interruptions. Time series analysis of outage data could not predict the wholesale power market collapse and the subsequent rolling blackouts in early 2001; inclusion of near-outage reliability disturbances---load shedding and energy emergencies---provided a measure of forewarning. Analysis of system disruptions, generation capacity and demand, and the role of purchased power challenge conventional wisdom on the causality of Californian's power problems. The quantitative analysis was supplemented by a targeted survey of electric system restructuring participants. Findings suggest each utility and the organization controlling the state's electric grid provided protection from power outages comparable to pre-restructuring operations through 2000; however, this reliability has come at an inflated cost, resulting in reduced system purchases and decreased marginal protection. The historic margin of operating safety has fully eroded, increasing mandatory load shedding and emergency declarations for voluntary and mandatory conservation. Proposed remedies focused on state-funded contracts and government-managed power authorities may not help, as the findings suggest pricing models, market uncertainty, interjurisdictional conflict and an inability to respond to market perturbations are more significant contributors to reduced regional generation availability than the particular contract mechanisms and funding sources used for power purchases.

Horiuchi, Catherine Miller

316

Cross-functional systems  

NASA Technical Reports Server (NTRS)

Many companies, including Xerox and Texas Instruments, are using cross functional systems to deal with the increasingly complex and competitive business environment. However, few firms within the aerospace industry appear to be aware of the significant benefits that cross functional systems can provide. Those benefits are examined and a flexible methodology is discussed that companies can use to identify and develop cross functional systems that will help improve organizational performance. In addition, some of the managerial issues are addressed that cross functional systems may raise and specific examples are used to explore networking's contributions to cross functional systems.

Lee, Mark

1991-01-01

317

Positive lubrication system  

NASA Technical Reports Server (NTRS)

As part of the development of an autonomous lubrication system for spin bearings, a system was developed to deliver oil to grease-lubricated bearings upon demand. This positive oil delivery system (PLUS) consists of a pressurized reservoir with a built-in solenoid valve that delivers a predictable quantity of oil to the spin bearing through a system of stainless steel tubes. Considerable testing was performed on the PLUS to characterize its performance and verify its effectiveness, along with qualifying it for flight. Additional development is underway that will lead to the fully autonomous active lubrication system.

Smith, Dennis W.; Hooper, Fred L.

1990-01-01

318

Text Exchange System  

NASA Technical Reports Server (NTRS)

Text Exchange System (TES) exchanges and maintains organized textual information including source code, documentation, data, and listings. System consists of two computer programs and definition of format for information storage. Comprehensive program used to create, read, and maintain TES files. TES developed to meet three goals: First, easy and efficient exchange of programs and other textual data between similar and dissimilar computer systems via magnetic tape. Second, provide transportable management system for textual information. Third, provide common user interface, over wide variety of computing systems, for all activities associated with text exchange.

Snyder, W. V.; Hanson, R. J.

1986-01-01

319

Nuclear propulsion systems engineering  

SciTech Connect

The Nuclear Energy for Rocket Vehicle Application (NERVA) program of the 1960`s and early 1970`s was dramatically successful, with no major failures during the entire testing program. This success was due in large part to the successful development of a systems engineering process. Systems engineering, properly implemented, involves all aspects of the system design and operation, and leads to optimization of theentire system: cost, schedule, performance, safety, reliability, function, requirements, etc. The process must be incorporated from the very first and continued to project completion. This paper will discuss major aspects of the NERVA systems engineering effort, and consider the implications for current nuclear propulsion efforts.

Madsen, W.W.; Neuman, J.E.: Van Haaften, D.H.

1992-12-31

320

Nuclear propulsion systems engineering  

SciTech Connect

The Nuclear Energy for Rocket Vehicle Application (NERVA) program of the 1960's and early 1970's was dramatically successful, with no major failures during the entire testing program. This success was due in large part to the successful development of a systems engineering process. Systems engineering, properly implemented, involves all aspects of the system design and operation, and leads to optimization of theentire system: cost, schedule, performance, safety, reliability, function, requirements, etc. The process must be incorporated from the very first and continued to project completion. This paper will discuss major aspects of the NERVA systems engineering effort, and consider the implications for current nuclear propulsion efforts.

Madsen, W.W.; Neuman, J.E.: Van Haaften, D.H.

1992-01-01

321

Benchmarking expert system tools  

NASA Technical Reports Server (NTRS)

As part of its evaluation of new technologies, the Artificial Intelligence Section of the Mission Planning and Analysis Div. at NASA-Johnson has made timing tests of several expert system building tools. Among the production systems tested were Automated Reasoning Tool, several versions of OPS5, and CLIPS (C Language Integrated Production System), an expert system builder developed by the AI section. Also included in the test were a Zetalisp version of the benchmark along with four versions of the benchmark written in Knowledge Engineering Environment, an object oriented, frame based expert system tool. The benchmarks used for testing are studied.

Riley, Gary

1988-01-01

322

Harvard: Systems Research  

NSDL National Science Digital Library

This website features Systems Research at Harvard University. Projects described on this website focus on distributed computing, sensor networks, file systems, and systems integration. Researchers from the System Group also develop educational resources, including a platform for teaching an Introduction to Computer Sciences course and an instructional operating system. The researchers provide overviews of their projects and related publications are available to download. Past projects include a project that explored methodologies for application-specific benchmarking and a project that proposed a framework for developing Web applications with client-side storage.

323

Liver in systemic disease  

PubMed Central

Potential causes of abnormal liver function tests include viral hepatitis, alcohol intake, nonalcoholic fatty liver disease, autoimmune liver diseases, hereditary diseases, hepatobiliary malignancies or infection, gallstones and drug-induced liver injury. Moreover, the liver may be involved in systemic diseases that mainly affect other organs. Therefore, in patients without etiology of liver injury by screening serology and diagnostic imaging, but who have systemic diseases, the abnormal liver function test results might be caused by the systemic disease. In most of these patients, the systemic disease should be treated primarily. However, some patients with systemic disease and severe liver injury or fulminant hepatic failure require intensive treatments of the liver. PMID:18636653

Shimizu, Yukihiro

2008-01-01

324

Computer system specialist  

NSDL National Science Digital Library

What do computer system specialists actually do? This is the introductory page for a set of materials about a career as a computer system specialist. Here the job of a computer system specialist is defined and described. Computer system specialists identify and fix computer problems that may be related to hardware, software, or networks. In the rest of the resource, students can examine two specialized job titles associated with computer system specialists: network specialist and database administrator. Students can view video clips of the network specialist and database administrator at work. Students can also listen to 16 answers the network specialist provides to questions about his job. Copyright 2005 Eisenhower National Clearinghouse

Project, Iowa P.

2002-01-01

325

SNS Cryogenic Systems Commissioning  

SciTech Connect

The Spallation Neutron Source (SNS) is under construction at Oak Ridge National Laboratory. The cold section of the Linac consists of 81 superconducting radio frequency cavities cooled to 2.1K by a 2400 watt cryogenic refrigeration system. The major cryogenic system components include warm helium compressors with associated oil removal and gas management, 4.5K cold box, 7000L liquid helium dewar, 2.1K cold box (consisting of 4 stages of cold compressors), gaseous helium storage, helium purification and gas impurity monitoring system, liquid nitrogen storage and the cryogenic distribution transfer line system. The overall system commissioning and future plans will be presented.

D. Hatfield; F. Casagrande; I. Campisi; P. Gurd; M. Howell; D. Stout; H. Strong; D. Arenius; J. Creel; K. Dixon; V. Ganni; and P. Knudsen

2005-08-29

326

Smart vehicular transportation systems  

SciTech Connect

This work builds upon established Sandia intelligent systems technology to develop a unique approach for the integration of intelligent system control into the US Highway and urban transportation systems. The Sandia developed concept of the COPILOT controller integrates a human driver with computer control to increase human performance while reducing reliance on detailed driver attention. This research extends Sandia expertise in sensor based, real-time control of robotics systems to high speed transportation systems. Knowledge in the form of maps and performance characteristics of vehicles provides the automatic decision making intelligence needed to plan optimum routes, maintain safe driving speeds and distances, avoid collisions, and conserve fuel.

Little, C.Q.; Wilson, C.W.

1997-05-01

327

Superconductor rotor cooling system  

DOEpatents

A system for cooling a superconductor device includes a cryocooler located in a stationary reference frame and a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with a rotating reference frame in which the superconductor device is located. A method of cooling a superconductor device includes locating a cryocooler in a stationary reference frame, and transferring heat from a superconductor device located in a rotating reference frame to the cryocooler through a closed circulation system external to the cryocooler. The closed circulation system interfaces the stationary reference frame with the rotating reference frame.

Gamble, Bruce B. (Wellesley, MA); Sidi-Yekhlef, Ahmed (Framingham, MA); Schwall, Robert E. (Northborough, MA); Driscoll, David I. (South Euclid, OH); Shoykhet, Boris A. (Beachwood, OH)

2002-01-01

328

Evacuating the system  

SciTech Connect

The purpose of evacuating the air conditioning system is to reduce system pressure to a point where any moisture contamination will begin to boil or vaporize at normal atmospheric conditions and can be removed from the system with a vacuum pump. In order to accomplish this effectively, the system pressure must be reduced to an extremely deep vacuum. Given the direct relationship between atmospheric pressure and a perfect vacuum, extremely low vacuum readings are read in microns. There are 25,400 microns to one inch of mercury. Figure I illustrates the comparisons of temperature, absolute pressure, inches of mercury and the micron system of measurement.

Puzio, H. [Sussex County Vocational Technical School, Sparta, NJ (United States)

1997-02-01

329

SNS Cryogenic Systems Commissioning  

NASA Astrophysics Data System (ADS)

The Spallation Neutron Source (SNS) is under construction at Oak Ridge National Laboratory. The cold section of the Linac consists of 81 superconducting radio frequency cavities cooled to 2.1K by a 2400 watt cryogenic refrigeration system. The major cryogenic system components include warm helium compressors with associated oil removal and gas management, 4.5K cold box, 7000L liquid helium dewar, 2.1K cold box (consisting of 4 stages of cold compressors), gaseous helium storage, helium purification and gas impurity monitoring system, liquid nitrogen storage and the cryogenic distribution transfer line system. The overall system commissioning and future plans will be presented.

Hatfield, D.; Casagrande, F.; Campisi, I.; Gurd, P.; Howell, M.; Stout, D.; Strong, H.; Arenius, D.; Creel, J.; Dixon, K.; Ganni, V.; Knudsen, P.

2006-04-01

330

Economics of Irrigation Systems  

E-print Network

(160 acres). The terrain and soil type were assumed not to affect the feasi- bility of the irrigation system. Application efficiency Not all of the water irrigated is used by the crop. The per- centage of irrigation water used by a crop is called... irrigation systems, the least efficient was the conventional furrow system; the most efficient was the subsurface drip irri- gation system. An efficiency index was calculated to show the amount of water (in acre-inches) that each system would have to apply...

Amosson, Stephen H.; New, Leon; Almas, Lal; Bretz, Fran; Marek, Thomas

2002-01-11

331

Medical Imaging System  

NASA Technical Reports Server (NTRS)

The MD Image System, a true-color image processing system that serves as a diagnostic aid and tool for storage and distribution of images, was developed by Medical Image Management Systems, Huntsville, AL, as a "spinoff from a spinoff." The original spinoff, Geostar 8800, developed by Crystal Image Technologies, Huntsville, incorporates advanced UNIX versions of ELAS (developed by NASA's Earth Resources Laboratory for analysis of Landsat images) for general purpose image processing. The MD Image System is an application of this technology to a medical system that aids in the diagnosis of cancer, and can accept, store and analyze images from other sources such as Magnetic Resonance Imaging.

1991-01-01

332

FRIB cryogenic distribution system  

SciTech Connect

The Michigan State University Facility for Rare Isotope Beams (MSU-FRIB) helium distribution system has been revised to include bayonet/warm valve type disconnects between each cryomodule and the transfer line distribution system, similar to the Thomas Jefferson National Accelerator Facility (JLab) and the Spallation Neutron Source (SNS) cryogenic distribution systems. The heat loads at various temperature levels and some of the features in the design of the distribution system are outlined. The present status, the plans for fabrication, and the procurement approach for the helium distribution system are also included.

Ganni, Venkatarao [JLAB; Dixon, Kelly D. [JLAB; Laverdure, Nathaniel A. [JLAB; Knudsen, Peter N. [JLAB; Arenius, Dana M. [JLAB; Barrios, Matthew N. [Michigan State; Jones, S. [Michigan State; Johnson, M. [Michigan State; Casagrande, Fabio [Michigan State

2014-01-01

333

Introduction Systems Engineering Fundamentals ENGINEERING  

E-print Network

Introduction Systems Engineering Fundamentals i SYSTEMS ENGINEERING FUNDAMENTALS January 2001;Systems Engineering Fundamentals Introduction ii #12;Introduction Systems Engineering Fundamentals iii ............................................................................................................................................. iv PART 1. INTRODUCTION Chapter 1. Introduction to Systems Engineering Management

Rhoads, James

334

Business System Planning Project, Preliminary System Design  

SciTech Connect

CH2M HILL Hanford Group, Inc. (CHG) is currently performing many core business functions including, but not limited to, work control, planning, scheduling, cost estimating, procurement, training, and human resources. Other core business functions are managed by or dependent on Project Hanford Management Contractors including, but not limited to, payroll, benefits and pension administration, inventory control, accounts payable, and records management. In addition, CHG has business relationships with its parent company CH2M HILL, U.S. Department of Energy, Office of River Protection and other River Protection Project contractors, government agencies, and vendors. The Business Systems Planning (BSP) Project, under the sponsorship of the CH2M HILL Hanford Group, Inc. Chief Information Officer (CIO), have recommended information system solutions that will support CHG business areas. The Preliminary System Design was developed using the recommendations from the Alternatives Analysis, RPP-6499, Rev 0 and will become the design base for any follow-on implementation projects. The Preliminary System Design will present a high-level system design, providing a high-level overview of the Commercial-Off-The-Shelf (COTS) modules and identify internal and external relationships. This document will not define data structures, user interface components (screens, reports, menus, etc.), business rules or processes. These in-depth activities will be accomplished at implementation planning time.

EVOSEVICH, S.

2000-10-30

335

TPC magnet cryogenic system  

SciTech Connect

The Time Projection Chamber (TPC) magnet at LBL and its compensation solenoids are adiabatically stable superconducting solenoid magnets. The cryogenic system developed for the TPC magnet is discussed. This system uses forced two-phase tubular cooling with the two cryogens in the system. The liquid helium and liquid nitrogen are delivered through the cooled load by forced tubular flow. The only reservoirs of liquid cryogen exist in the control dewar (for liquid helium) and the conditioner dewar (for liquid nitrogen). The operation o these systems during virtually all phases of system operation are described. Photographs and diagrams of various system components are shown, and cryogenic system data are presented in the following sections: (1) heat leaks into the TPC coil package and the compensation solenoids; (2) heat leaks to various components of the TPC magnet cryogenics system besides the magnets and control dewar; (3) the control dewar and its relationship to the rest of the system; (4) the conditioner system and its role in cooling down the TPC magnet; (5) gas-cooled electrical leads and charging losses; and (6) a summation of the liquid helium and liquid nitrogen requirements for the TPC superconducting magnet system.

Green, M.A.; Burns, W.A.; Taylor, J.D.; Van Slyke, H.W.

1980-03-01

336

Holographic versatile disc system  

NASA Astrophysics Data System (ADS)

A Holographic Versatile Disc (HVD) system, using Collinear Technologies for a high capacity and high data transfer rates storage system, is proposed. With its unique configuration the optical pickup can be designed as small as a DVD's, and can be placed on one side of the disc. With the HVD's special structure, the system can servo the focus/track and locate reading/writing address. A unique selectable capacity recording format of HVD and its standardization activity are also introduced. Experimental and theoretical studies suggest that the tilt, wavelength, defocus and de-track margins are wide enough to miniaturize the HVD system at a low cost. HVD systems using Collinear Technologies will be compatible with existing disc storage systems, like CD and DVD, and will enable us to expand its applications into other optical information storage systems.

Horimai, Hideyoshi; Tan, Xiaodi

2005-09-01

337

Space Nuclear Power Systems  

NASA Technical Reports Server (NTRS)

Fission power and propulsion systems can enable exciting space exploration missions. These include bases on the moon and Mars; and the exploration, development, and utilization of the solar system. In the near-term, fission surface power systems could provide abundant, constant, cost-effective power anywhere on the surface of the Moon or Mars, independent of available sunlight. Affordable access to Mars, the asteroid belt, or other destinations could be provided by nuclear thermal rockets. In the further term, high performance fission power supplies could enable both extremely high power levels on planetary surfaces and fission electric propulsion vehicles for rapid, efficient cargo and crew transfer. Advanced fission propulsion systems could eventually allow routine access to the entire solar system. Fission systems could also enable the utilization of resources within the solar system.

Houts, Michael G.

2012-01-01

338

Testing expert systems  

NASA Technical Reports Server (NTRS)

Software quality is of primary concern in all large-scale expert system development efforts. Building appropriate validation and test tools for ensuring software reliability of expert systems is therefore required. The Expert Systems Validation Associate (EVA) is a validation system under development at the Lockheed Artificial Intelligence Center. EVA provides a wide range of validation and test tools to check correctness, consistency, and completeness of an expert system. Testing a major function of EVA. It means executing an expert system with test cases with the intent of finding errors. In this paper, we describe many different types of testing such as function-based testing, structure-based testing, and data-based testing. We describe how appropriate test cases may be selected in order to perform good and thorough testing of an expert system.

Chang, C. L.; Stachowitz, R. A.

1988-01-01

339

Microgravity particle reduction system  

NASA Technical Reports Server (NTRS)

The Controlled Ecological Life Support System (CELSS) project, sponsored by NASA, is assembling the knowledge required to design, construct, and operate a system which will grow and process higher plants in space for the consumption by crew members of a space station on a long term space mission. The problem of processing dry granular organic materials in microgravity is discussed. For the purpose of research and testing, wheat was chosen as the granular material to be ground into flour. Possible systems which were devised to transport wheat grains into the food processor, mill the wheat into flour, and transport the flour to the food preparation system are described. The systems were analyzed and compared and two satisfactory systems were chosen. Prototypes of the two preferred systems are to be fabricated next semester. They will be tested under simulated microgravity conditions and revised for maximum effectiveness.

Brandon, Vanessa; Joslin, Michelle; Mateo, Lili; Tubbs, Tracey

1988-01-01

340

Optical measurement systems  

NASA Technical Reports Server (NTRS)

Some of the areas of research conducted at Lewis on optical measurement techniques are described. Two laser anemometer systems developed at Lewis are used to illustrate the special instrumentation needs encountered in aeropropulsion research. Velocity measurements to be made through small viewing ports, close to surfaces within the propulsion system components, and in turbulent or highly-accelerating flows are some of the significant challenges. The application to research facilities of two advanced optical systems, the rainbow schlieren and the combustor viewing system, is presented. The calibration and verification of commercial optical measuring systems, such as droplet sizing systems, are also discussed. Calibration techniques capable of simulating moving droplets for flight-type sizing systems are being developed at Lewis. The presentation concludes with a brief look at the forces driving future research on optical instrumentation.

Lesco, Daniel J.

1987-01-01

341

Spacecraft automatic umbilical system  

NASA Technical Reports Server (NTRS)

An umbilical system design is described that incorporates all the features specified for a power system to payload interconnect capability. A proof-of-concept prototype of the umbilical system was built to determine experimentally the suitability of the threading characteristics of the ram mechanism and to verify freedom from cross threading. It is concluded that Berthing systems that utilize remote manipulator systems (RMS) can be simplified by using RMS targets, closed circuit TV cameras, tie into the RMS control system, and grapple-fixture and end-effector-like capture and secure mechanisms. To effect a remotely controlled umbilical interconnect in proximity with a manned spacecraft and to provide for extravehicular activity backup and maintenance capabilities, 18 different mechanisms are found to be necessary. The weight impact of proving for maintenance capability in a large multiple connector umbilical system was found to be in the order of +60 percent.

Goldin, R. W.; Jacquemin, G. G.; Johnson, W. H.

1981-01-01

342

KEKB accelerator control system  

NASA Astrophysics Data System (ADS)

The KEKB accelerator control system including a control computer system, a timing distribution system, and a safety control system are described. KEKB accelerators were installed in the same tunnel where the TRISTAN accelerator was. There were some constraints due to the reused equipment. The control system is based on Experimental Physics and Industrial Control System (EPICS). In order to reduce the cost and labor for constructing the KEKB control system, as many CAMAC modules as possible are used again. The guiding principles of the KEKB control computer system are as follows: use EPICS as the controls environment, provide a two-language system for developing application programs, use VMEbus as frontend computers as a consequence of EPICS, use standard buses, such as CAMAC, GPIB, VXIbus, ARCNET, RS-232 as field buses and use ergonomic equipment for operators and scientists. On the software side, interpretive Python and SAD languages are used for coding application programs. The purpose of the radiation safety system is to protect personnel from radiation hazards. It consists of an access control system and a beam interlock system. The access control system protects people from strong radiation inside the accelerator tunnel due to an intense beam, by controlling access to the beamline area. On the other hand, the beam interlock system prevents people from radiation exposure by interlocking the beam operation. For the convenience of accelerator operation and access control, the region covered by the safety system is divided into three major access control areas: the KEKB area, the PF-AR area, and the beam-transport (BT) area. The KEKB control system required a new timing system to match a low longitudinal acceptance due to a low-alpha machine. This timing system is based on a frequency divider/multiply technique and a digital delay technique. The RF frequency of the KEKB rings and that of the injector Linac are locked with a common divisor frequency. The common divisor frequency determines the injection timing. The RF bucket selection system is also described.

Akasaka, Nobumasa; Akiyama, Atsuyoshi; Araki, Sakae; Furukawa, Kazuro; Katoh, Tadahiko; Kawamoto, Takashi; Komada, Ichitaka; Kudo, Kikuo; Naito, Takashi; Nakamura, Tatsuro; Odagiri, Jun-ichi; Ohnishi, Yukiyoshi; Sato, Masayuki; Suetake, Masaaki; Takeda, Shigeru; Takeuchi, Yasunori; Yamamoto, Noboru; Yoshioka, Masakazu; Kikutani, Eji

2003-02-01

343

Virtual attendant system and parking management system  

US Patent & Trademark Office Database

A control and management system for defined areas, employs a card reader, vehicle sensing loop detectors and electric eyes, entrance door sensors and operators, truck securement devices, cameras, a control system with memory, and a wireless connection or internet/intranet connection, is provided to produce event log documentation. The event information is readily accessible by management or supervisory personnel, to see all of the recorded information concerning a specified event. Thus, an event can be readily reconstructed after the fact, using all available sensors and other information relevant to a manager or supervisor. An alert can be issued whenever an abnormal or unauthorized event occurs during operations. A QR code reader can be provided which communicates with the system to enable a person carrying the cell phone to scan QR codes at specified locations or on specified items or vehicles.

2014-09-09

344

Automated Information System (AIS) Alarm System  

SciTech Connect

The Automated Information Alarm System is a joint effort between Los Alamos National Laboratory, Lawrence Livermore National Laboratory, and Sandia National Laboratory to demonstrate and implement, on a small-to-medium sized local area network, an automated system that detects and automatically responds to attacks that use readily available tools and methodologies. The Alarm System will sense or detect, assess, and respond to suspicious activities that may be detrimental to information on the network or to continued operation of the network. The responses will allow stopping, isolating, or ejecting the suspicious activities. The number of sensors, the sensitivity of the sensors, the assessment criteria, and the desired responses may be set by the using organization to meet their local security policies.

Hunteman, W.

1997-05-01

345

A contemporary view of systems engineering. [definition of system and discussion of systems approach  

NASA Technical Reports Server (NTRS)

The concept of a 'system' is defined, and the 'systems approach' is discussed. Four contemporary examples of the systems approach are presented: an operations research project, the planning-programming-budgeting system, an information processing system, and aerospace programs.

Miles, R. F., Jr.

1974-01-01

346

Unified Synoptic System  

NASA Astrophysics Data System (ADS)

During the complete life cycle of spacecraft projects different systems for development, testing, operation and control are used. All of these systems have some commonalities but in most space projects for each phase a dedicated hardware and software is used. One software component common to all facilities is the data presentation software. The Unified Synoptic System (USS) described here, is developed to reduce the effort (and cost) for development and definition of synoptic displays as well as to reduce the overall cost of space craft equipments. The Unified Synoptic System is developed as an extension of the Columbus Ground System (CGS) but with the standardised interfaces it is also open for other systems. In this paper we will describe the concept of the Unified Synoptic System from operational point of view as well as from the technical point of view. We give a short overview about synoptic display systems in use for or satellite integration and operation and also for integration and operation of the Columbus module (on ground and on-board). To understand the requirements on a Synoptic System we will shortly describe the Columbus Ground System with the Mission Database (MDB).

Nicklaussen, D.

347

Distributed Deliberative Recommender Systems  

NASA Astrophysics Data System (ADS)

Case-Based Reasoning (CBR) is one of most successful applied AI technologies of recent years. Although many CBR systems reason locally on a previous experience base to solve new problems, in this paper we focus on distributed retrieval processes working on a network of collaborating CBR systems. In such systems, each node in a network of CBR agents collaborates, arguments and counterarguments its local results with other nodes to improve the performance of the system's global response. We describe D2ISCO: a framework to design and implement deliberative and collaborative CBR systems that is integrated as a part of jcolibritwo an established framework in the CBR community. We apply D2ISCO to one particular simplified type of CBR systems: recommender systems. We perform a first case study for a collaborative music recommender system and present the results of an experiment of the accuracy of the system results using a fuzzy version of the argumentation system AMAL and a network topology based on a social network. Besides individual recommendation we also discuss how D2ISCO can be used to improve recommendations to groups and we present a second case of study based on the movie recommendation domain with heterogeneous groups according to the group personality composition and a group topology based on a social network.

Recio-García, Juan A.; Díaz-Agudo, Belén; González-Sanz, Sergio; Sanchez, Lara Quijano

348

Nemesis Autonomous Test System  

NASA Technical Reports Server (NTRS)

A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By applying genetic optimization and goal-seeking algorithms on the test equipment side, a "war game" is conducted between a system and its complementary nemesis. The end result of the war games is a collection of scenarios that reveals any undesirable behaviors of the system under test. The software provides a reusable framework to evolve test scenarios using genetic algorithms using an operation model of the system under test. It can automatically generate and execute test cases that reveal flaws in behaviorally complex systems. Genetic algorithms focus the exploration of tests on the set of test cases that most effectively reveals the flaws and vulnerabilities of the system under test. It leverages advances in state- and model-based engineering, which are essential in defining the behavior of autonomous systems. It also uses goal networks to describe test scenarios.

Barltrop, Kevin J.; Lee, Cin-Young; Horvath, Gregory A,; Clement, Bradley J.

2012-01-01

349

Simple Fictitious Solar Systems  

NSDL National Science Digital Library

The Simple Artificial Solar Systems package is a zip archive containing a set of thirty different Java programs (created using Easy Java Simulations) that simulate the night sky for fictitious solar systems. Each simulation illustrates the motion of a "Sun" and some "planets" relative to a fixed background of stars. Students can use these simulations to make qualitative and quantitative observations of the solar and planetary motions. These observations can then be used to construct models (Ptolemaic, Copernican, Tychonic, etc) for that solar system. Handouts for these projects are provided as supplementary documents. All of the solar systems were constructed such that all planets orbit in a common plane around the central "Sun". All orbits are circular, and thus the planets move uniformly on their orbits. This makes the geometry of the models much simpler. Included in the zip archive is a spreadsheet giving the required data for each system. Instructors who want their students to complete the projects individually should assign the 30 solar systems at random and privately document which solar system (by number) each student receives. Change the name of the solar system file from "ejs_YourSolarSystem01.jar" to "StudentNameSolarSystem.jar" (using the actual names of your students, of course) and then distribute the files to your students. That way your students will not know which system they have, so even if they get a copy of the solar system data file they will not be able to determine the data for their solar system without doing the necessary work (unless they want to rely on a 1 in 30 chance of guessing correctly).

Timberlake, Todd

2013-01-04

350

Distribution system state estimation  

NASA Astrophysics Data System (ADS)

With the development of automation in distribution systems, distribution SCADA and many other automated meters have been installed on distribution systems. Also Distribution Management System (DMS) have been further developed and more sophisticated. It is possible and useful to apply state estimation techniques to distribution systems. However, distribution systems have many features that are different from the transmission systems. Thus, the state estimation technology used in the transmission systems can not be directly used in the distribution systems. This project's goal was to develop a state estimation algorithm suitable for distribution systems. Because of the limited number of real-time measurements in the distribution systems, the state estimator can not acquire enough real-time measurements for convergence, so pseudo-measurements are necessary for a distribution system state estimator. A load estimation procedure is proposed which can provide estimates of real-time customer load profiles, which can be treated as the pseudo-measurements for state estimator. The algorithm utilizes a newly installed AMR system to calculate more accurate load estimations. A branch-current-based three-phase state estimation algorithm is developed and tested. This method chooses the magnitude and phase angle of the branch current as the state variable, and thus makes the formulation of the Jacobian matrix less complicated. The algorithm decouples the three phases, which is computationally efficient. Additionally, the algorithm is less sensitive to the line parameters than the node-voltage-based algorithms. The algorithm has been tested on three IEEE radial test feeders, both the accuracy and the convergence speed. Due to economical constraints, the number of real-time measurements that can be installed on the distribution systems is limited. So it is important to decide what kinds of measurement devices to install and where to install them. Some rules of meter placement based on this state estimation algorithm are proposed and tested. These rules can improve the accuracy of the estimation results.

Wang, Haibin

351

Power system commonality study  

NASA Astrophysics Data System (ADS)

A limited top level study was completed to determine the commonality of power system/subsystem concepts within potential lunar and Mars surface power system architectures. A list of power system concepts with high commonality was developed which can be used to synthesize power system architectures which minimize development cost. Examples of potential high commonality power system architectures are given in this report along with a mass comparison. Other criteria such as life cycle cost (which includes transportation cost), reliability, safety, risk, and operability should be used in future, more detailed studies to select optimum power system architectures. Nineteen potential power system concepts were identified and evaluated for planetary surface applications including photovoltaic arrays with energy storage, isotope, and nuclear power systems. A top level environmental factors study was completed to assess environmental impacts on the identified power system concepts for both lunar and Mars applications. Potential power system design solutions for commonality between Mars and lunar applications were identified. Isotope, photovoltaic array (PVA), regenerative fuel cell (RFC), stainless steel liquid-metal cooled reactors (less than 1033 K maximum) with dynamic converters, and in-core thermionic reactor systems were found suitable for both lunar and Mars environments. The use of SP-100 thermoelectric (TE) and SP-100 dynamic power systems in a vacuum enclosure may also be possible for Mars applications although several issues need to be investigated further (potential single point failure of enclosure, mass penalty of enclosure and active pumping system, additional installation time and complexity). There are also technical issues involved with development of thermionic reactors (life, serviceability, and adaptability to other power conversion units). Additional studies are required to determine the optimum reactor concept for Mars applications. Various screening criteria (availability, environmental compatibility, mass competitiveness of energy storage, safety, and practicality for the application) were used to define concept applicability for each lunar and Mars application. A screening study resulted in 13 power systems for lunar applications and 15 for Mars applications. A commonality analysis showed several power systems with potentially high commonality (across both lunar and Mars applications). These high commonality systems include d PVA/RFC, dynamic isotope (1033 K Stirling, 1133 K Brayton, and 1300 K Brayton PCU's), SP-100 TE and dynamic derivatives (Mars systems required vacuum enclosure), in-core thermionic reactor, and liquid metal cooled reactor/Stirling cycle (1033 K). The generic commonality results were used to synthesize 3 high commonality power system architectures: (1) predominantly PV (limited nuclear and isotope), (2) predominantly in-core thermionic reactor/DIPS, and (3) predominantly SP-100 reactor/DIPS. The in-core thermionic reactor/DIPS power system architecture had the lowest total mass. Specific outputs from this study included lists of power system requirements, power system candidates, a power system application matrix, power system characteristics (mass), power system commonality ratings, example high commonality power system architectures, architecture masses, and issues/design solutions for lunar/Mars commonality.

Littman, Franklin D.

1992-07-01

352

Environmental Control and Life Support Systems and Power Systems ...  

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Environmental Control and Life Support Systems and Power Systems - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

353

Institut fr Integrierte Systeme Integrated Systems Laboratory  

E-print Network

of Electronics and Computer Systems (LECS) at KTH Stockholm has developed a NoC model called NOSTRUM. The NOSTRUM implemented allowing it to generate traffic patterns with maximal flexibility. Two measures are available at the chip output to observe the network activity; the load of selected switches and a 32 bit counter

Jantsch, Axel

354

4. System Definition 16 4. System Definition  

E-print Network

but it is important to bear in mind that such a procedure need not automatically lead to an optimum for the built-up complicated, built-up systems, a high level of detail with respect to the analysis is most often impossible

Berlin,Technische Universität

355

Systems Concepts Effectively Taught Using Systems Practices  

ERIC Educational Resources Information Center

This article describes two lessons within the authors' education module entitled, Ecological Networks, that successfully teaches introductory systems content to middle and high school students. To catch students' attention when teaching these new concepts, they decided to use a network that was familiar and fun for students--a cell-phone…

Ludwig, Claudia; Baliga, Nitin S.

2008-01-01

356

Operational Management System for Regulated Water Systems  

NASA Astrophysics Data System (ADS)

Most of the Dutch large rivers, canals and lakes are controlled by the Dutch water authorities. The main reasons concern safety, navigation and fresh water supply. Historically the separate water bodies have been controlled locally. For optimizating management of these water systems an integrated approach was required. Presented is a platform which integrates data from all control objects for monitoring and control purposes. The Operational Management System for Regulated Water Systems (IWP) is an implementation of Delft-FEWS which supports operational control of water systems and actively gives advice. One of the main characteristics of IWP is that is real-time collects, transforms and presents different types of data, which all add to the operational water management. Next to that, hydrodynamic models and intelligent decision support tools are added to support the water managers during their daily control activities. An important advantage of IWP is that it uses the Delft-FEWS framework, therefore processes like central data collection, transformations, data processing and presentation are simply configured. At all control locations the same information is readily available. The operational water management itself gains from this information, but it can also contribute to cost efficiency (no unnecessary pumping), better use of available storage and advise during (water polution) calamities.

van Loenen, A.; van Dijk, M.; van Verseveld, W.; Berger, H.

2012-04-01

357

Geoscience laser altimeter system - stellar reference system  

SciTech Connect

GLAS is an EOS space-based laser altimeter being developed to profile the height of the Earth's ice sheets with {approx}15 cm single shot accuracy from space under NASA's Mission to Planet Earth (MTPE). The primary science goal of GLAS is to determine if the ice sheets are increasing or diminishing for climate change modeling. This is achieved by measuring the ice sheet heights over Greenland and Antarctica to 1.5 cm/yr over 100 kmx100 km areas by crossover analysis (Zwally 1994). This measurement performance requires the instrument to determine the pointing of the laser beam to {approx}5 urad (1 arcsecond), 1-sigma, with respect to the inertial reference frame. The GLAS design incorporates a stellar reference system (SRS) to relate the laser beam pointing angle to the star field with this accuracy. This is the first time a spaceborne laser altimeter is measuring pointing to such high accuracy. The design for the stellar reference system combines an attitude determination system (ADS) with a laser reference system (LRS) to meet this requirement. The SRS approach and expected performance are described in this paper.

Millar, Pamela S.; Sirota, J. Marcos [NASA Goddard Space Flight Center, Laser Remote Sensing Branch, Code 924, Greenbelt, Maryland, 20771 (United States); University of Maryland at Baltimore County, 5401 Wilkens Ave, Baltimore, Maryland, 21228-5398 (United States)

1998-01-15

358

Solar System: Formation of Our Solar System  

NSDL National Science Digital Library

This Science Object is the fourth of four Science Objects in the Solar System SciPack. It explores the hypothesis that the solar system coalesced out of a giant cloud of gas and debris left in the wake of exploding stars about five billion years ago. Everything in and on the earth, including living organisms, is made of the material from this cloud. As Earth and the other planets formed, the heavier elements fell to their centers. On planets closer to the Sun (the inner planets), the lightest elements and their compounds were mostly blown or boiled away by radiation from the newly formed sun. However, on the outer planets, the lighter substances still surround them as deep atmospheres of gas or as frozen solid layers. Learning Outcomes:� Provide the basic story line of how the solar system may have formed from the debris of exploding stars. � Relate the different characteristics and features of the planets to their different distances from the sun.� Explain some of the methods scientists have used to learn about the formation and evolution of the solar system.

National Science Teachers Association (NSTA)

2006-11-01

359

Climate Observing Systems: Data System Challenges  

Microsoft Academic Search

Existing observing and data systems have provided considerable information about past climate variations and changes. The recent reports by the Intergovernmental Panel on Climate Change, the National Research Council, and the USGCRP National Assessment of Climate Variability and Change are testaments to a vast array of knowledge. These reports also expose some serious deficiencies in our ability to discern past

T. R. Karl

2001-01-01

360

Bisho juryoku kankyo wo riyoshita yuki usumaku sosei ni kansuru kenkyu. (Research on the organic thin film preparation utilizing the micro-gravitational environment).  

National Technical Information Service (NTIS)

Researches were made to elucidate the formation process of organic thin films and high-function protein thin films in the micro-gravitational environment. As for the investigation on the organic thin film trial preparation utilizing the micro-gravitationa...

1995-01-01

361

The global Earth observation system of systems  

NASA Astrophysics Data System (ADS)

Recognizing the growing need for improved Earth observations, 140 governments and leading international organizations have established the Group on Earth Observations, or GEO, to collaborate and implement a Global Earth Observation System of Systems (GEOSS) by the year 2015. Countries and organizations are contributing their respective Earth monitoring systems, from satellites in space and in situ instruments on land, in the oceans and in the atmosphere. They are interlinking these systems so that, together, they provide a more complete picture of Earth's systems dynamics. GEO is developing common technical standards to pool observations and ensure their cross calibration and validation. It is building a web-based infrastructure to ensure easy access to the wealth of data and services contributed to, or generated by, GEOSS. GEO has been promoting the free and open sharing and dissemination of Earth observation data which has already driven significant changes in data distribution policies of several key Earth observing satellites: Landsat, Cbers and the future Sentinels of GMES. GEO is also reflecting on solutions to transition research systems into operational observing systems and ensure their long-term sustainability. First, the current status of GEOSS implementation and these core activities of GEO will be presented. Then, examples of global data sets and information systems or services developed through GEOSS will be presented: - a high-resolution global digital elevation model (DEM) based on Aster data was released by Japan and the USA. In situ measurements are now being used to improve the model as well as the stacking procedure used to develop it; - the Supersites initiative ensures coordinated access to data and information on natural hazards in geologically active regions. In light of the recent tragedy in Haiti, this project created a dedicated web site regularly updated with maps of seismicity, tectonics, Coulomb stress changes, topography, real and synthetic interferograms, as well as damage maps, data, and space images. See http://supersites.unavco.org/haiti.php; - the global carbon observation and analysis system combines observations, reanalysis and product development to provide regional information on emission variations. It addresses the three components of the carbon cycle (atmosphere, land, ocean). The project includes the improvement of global networks of atmospheric CO2 observations, air-surface exchange flux networks, surface ocean CO2 and related marine biochemistry observations, as well as space-based measurements combining Sciamachy , Airs and the newly launched Japanese Gosat; - the Forest Carbon Tracking (FCT) project coordinates the acquisition of observations from multi-spectral and radar (X, C and L-band) satellites, their processing through different models and methodologies and their validation by in situ measurements in 7 selected countries. The aim is to demonstrate the feasibility of a global monitoring and verification system for carbon storage and change in forests. Data and results can be viewed on-line at www.geo-fct.org. This portal allows users to visualize the FCT National Demonstrators, the relevant validation sites and the inventory of the coordinated acquisitions of satellite and in-situ data. Maps and information resulting from the processing of the data will also be posted here when available.

Achache, José

2010-05-01

362

Quantum System Identification  

E-print Network

The aim of quantum system identification is to estimate the ingredients inside a black box, in which some quantum-mechanical unitary process takes place, by just looking at its input-output behavior. Here we establish a basic and general framework for quantum system identification, that allows us to classify how much knowledge about the quantum system is attainable, in principle, from a given experimental setup. Prior knowledge on some elements of the black box helps the system identification. We present an example in which a Bell measurement is more efficient to identify the system. When the topology of the system is known, the framework enables us to establish a general criterion for the estimability of the coupling constants in its Hamiltonian.

Daniel Burgarth; Kazuya Yuasa

2011-04-04

363

Idaho Explosives Detection System  

SciTech Connect

The Idaho Explosives Detection System (IEDS) was developed at the Idaho National Laboratory (INL) to respond to threats imposed by delivery trucks carrying explosives into military bases. A full-scale prototype system has been built and is currently undergoing testing. The system consists of two racks, one on each side of a subject vehicle. Each rack includes a neutron generator and an array of NaI detectors. The two neutron generators are pulsed and synchronized. A laptop computer controls the entire system. The control software is easily operable by minimally trained staff. The system was developed to detect explosives in a medium size truck within a 5-minute measurement time. System performance was successfully demonstrated with explosives at the INL in June 2004 and at Andrews Air Force Base in July 2004.

Edward L. Reber; J. Keith Jewell; Larry G. Blackwood; Andrew J. Edwards; Kenneth W. Rohde; Edward H. Seabury

2004-10-01

364

Vital signs monitoring system  

NASA Technical Reports Server (NTRS)

A system is disclosed for monitoring vital physiological signs. Each of the system components utilizes a single hybrid circuit with each component having high accuracy without the necessity of repeated calibration. The system also has low power requirements, provides a digital display, and is of sufficiently small size to be incorporated into a hand-carried case for portable use. Components of the system may also provide independent outputs making the component useful, of itself, for monitoring one or more vital signs. The overall system preferably includes an ECG amplifier and cardiotachometer signal conditioner unit, an impedance pneumograph and respiration rate signal conditioner unit, a heart/breath rate processor unit, a temperature monitoring unit, a selector switch, a clock unit, and an LCD driver unit and associated LCDs, with the system being capable of being expanded as needed or desired, such as, for example, by addition of a systolic/diastolic blood pressure unit.

Steffen, Dale A. (Inventor); Sturm, Ronald E. (Inventor); Rinard, George A. (Inventor)

1981-01-01

365

Ag-Sn System  

NSDL National Science Digital Library

The information provided for the Ag-Sn System consists of five parts: - Diagram: The diagram shows the calculated phase diagram of the system. - Status: The source and status of the analytical description of the Gibbs energies of the phases. - Additional Assessments: Bibliographic information for alternate thermodynamic descriptions. - Invariant Equilibria: Table with the calculated invariant equilibria of the system. The table lists the phases involved in the reaction, phase compositions and reaction temperature. - Phases: Table with the phases of the system. The table lists the crystal structure, common names of the phases and the model used for the thermodynamic description. Thermodynamic databases allow the compact storage of phase equilibria information in the form of Gibbs energy functions for each phase. The thermodynamic description of each phase in the binary system is derived from the assessment of the available phase equilibria and thermochemical data. The calculated phase diagram of the Ag-Sn system is presented.

Kattner, Ursula

2003-01-01

366

Ag-Pb System  

NSDL National Science Digital Library

The information provided for the Ag-Pb System consists of five parts: - Diagram: The diagram shows the calculated phase diagram of the system. - Status: The source and status of the analytical description of the Gibbs energies of the phases. - Additional Assessments: Bibliographic information for alternate thermodynamic descriptions. - Invariant Equilibria: Table with the calculated invariant equilibria of the system. The table lists the phases involved in the reaction, phase compositions and reaction temperature. - Phases: Table with the phases of the system. The table lists the crystal structure, common names of the phases and the model used for the thermodynamic description. Thermodynamic databases allow the compact storage of phase equilibria information in the form of Gibbs energy functions for each phase. The thermodynamic description of each phase in the binary system is derived from the assessment of the available phase equilibria and thermochemical data. The calculated phase diagram of the Ag-Pb system is presented.

Kattner, Ursula

2003-01-01

367

Bi-Pb System  

NSDL National Science Digital Library

The information provided for the Bi-Pb System consists of five parts: - Diagram: The diagram shows the calculated phase diagram of the system. - Status: The source and status of the analytical description of the Gibbs energies of the phases. - Additional Assessments: Bibliographic information for alternate thermodynamic descriptions. - Invariant Equilibria: Table with the calculated invariant equilibria of the system. The table lists the phases involved in the reaction, phase compositions and reaction temperature. - Phases: Table with the phases of the system. The table lists the crystal structure, common names of the phases and the model used for the thermodynamic description. Thermodynamic databases allow the compact storage of phase equilibria information in the form of Gibbs energy functions for each phase. The thermodynamic description of each phase in the binary system is derived from the assessment of the available phase equilibria and thermochemical data. The calculated phase diagram of the Bi-Pb system is presented.

Kattner, Ursula

2003-01-01

368

Cu-Pb System  

NSDL National Science Digital Library

The information provided for the Cu-Pb System consists of five parts: - Diagram: The diagram shows the calculated phase diagram of the system. - Status: The source and status of the analytical description of the Gibbs energies of the phases. - Additional Assessments: Bibliographic information for alternate thermodynamic descriptions. - Invariant Equilibria: Table with the calculated invariant equilibria of the system. The table lists the phases involved in the reaction, phase compositions and reaction temperature. - Phases: Table with the phases of the system. The table lists the crystal structure, common names of the phases and the model used for the thermodynamic description. Thermodynamic databases allow the compact storage of phase equilibria information in the form of Gibbs energy functions for each phase. The thermodynamic description of each phase in the binary system is derived from the assessment of the available phase equilibria and thermochemical data. The calculated phase diagram of the Cu-Pb system is presented.

Kattner, Ursula

2003-01-01

369

Inductive System Health Monitoring  

NASA Technical Reports Server (NTRS)

The Inductive Monitoring System (IMS) software was developed to provide a technique to automatically produce health monitoring knowledge bases for systems that are either difficult to model (simulate) with a computer or which require computer models that are too complex to use for real time monitoring. IMS uses nominal data sets collected either directly from the system or from simulations to build a knowledge base that can be used to detect anomalous behavior in the system. Machine learning and data mining techniques are used to characterize typical system behavior by extracting general classes of nominal data from archived data sets. IMS is able to monitor the system by comparing real time operational data with these classes. We present a description of learning and monitoring method used by IMS and summarize some recent IMS results.

Iverson, David L.

2004-01-01

370

Computer systems analyst  

NSDL National Science Digital Library

What do computer systems analysts actually do? This is the introductory page for a set of materials about a career as a computer systems analyst. Here the job of a computer systems analyst is defined and described. In the rest of the resource, students can examine three specialized job titles associated with computer system specialists: computer system administrator, senior network analyst, and programmer analyst. Students can view video clips of the computer system administrator, senior network analyst, and programmer analyst at work. A student challenge activity compares the records of 10 salespeople over a two-year period to determine who the best and worst salespeople are. Challenge activity answers and teacher suggestions are provided. Copyright 2005 Eisenhower National Clearinghouse

Project, Iowa P.

2002-01-01

371

Oxidative Tritium Decontamination System  

SciTech Connect

The Princeton Plasma Physics Laboratory, Tritium Systems Group has developed and fabricated an Oxidative Tritium Decontamination System (OTDS), which is designed to reduce tritium surface contamination on various components and items. The system is configured to introduce gaseous ozone into a reaction chamber containing tritiated items that require a reduction in tritium surface contamination. Tritium surface contamination (on components and items in the reaction chamber) is removed by chemically reacting elemental tritium to tritium oxide via oxidation, while purging the reaction chamber effluent to a gas holding tank or negative pressure HVAC system. Implementing specific concentrations of ozone along with catalytic parameters, the system is able to significantly reduce surface tritium contamination on an assortment of expendable and non-expendable items. This paper will present the results of various experimentation involving employment of this system.

Charles A. Gentile; John J. Parker; Gregory L. Guttadora; Lloyd P. Ciebiera

2002-02-11

372

Environmental Conservation Online System  

NSDL National Science Digital Library

The Environmental Conservation Online System (ECOS) is a gateway web site that provides access to data systems in the Endangered Species and Fisheries and Habitat Conservation program areas, as well as other FWS and Government data sources. ECOS provides a central point of access to assist FWS personnel in managing data and information as well as provide general public access to information from numerous FWS databases. ECOS allows users to view, query, and, in some cases, edit data. Some of the larger applications are: Threatened and Endangered Species System (TESS), Habitat Tracking Information System (HabITS), Fish Passage Decision Support System (FPDSS), Contaminant Assessment Program (CAP), and Environmental Contaminants Data Management System (ECDMS). Mapping capabilities are also available, utilizing spatially referenced data in these databases. The general mapping utility, Geotract, is an interactive tool that includes data relevant to many service personnel and the public. Other specialized mapping tools are available for specific project and end-user needs.

373

Kepler's Multiple Planet Systems  

NASA Technical Reports Server (NTRS)

Among the 1800 Kepler targets that have candidate planets, 20% have two or more candidate planets. While most of these objects have not yet been confirmed as true planets, several considerations strongly suggest that the vast majority of these multi-candidate systems are true planetary systems. Virtually all candidate systems are stable, as tested by numerical integrations (assuming a nominal mass-radius relationship). Statistical studies performed on these candidates reveal a great deal about the architecture of planetary systems, including the typical spacing of orbits and flatness of planetary systems. The distribution of observed period ratios shows that the vast majority of candidate pairs are neither in nor near low-order mean motion resonances. Nonetheless, there are small but statistically significant excesses of candidate pairs both in resonance and spaced slightly too far apart to be in resonance, particularly near the 2:1 resonance. The characteristics of the confirmed Kepler multi-planet systems will also be discussed.

Lissauer, Jack J.

2012-01-01

374

Integrated oxygen recovery system  

NASA Technical Reports Server (NTRS)

Life Systems has conceptualized an innovative Integrated Oxygen Recovery System (IORS) applicable to advanced mission air revitalization. The IORS provides the capability to electrochemically generate metabolic oxygen (O2) and recover O2 from the space habitat atmosphere via a carbon dioxide (CO2) reduction process within a single assembly. To achieve this capability, the IORS utilizes a Solid Metal Cathode (SMC) water electrolysis unit that simultaneously serves as the Sabatier CO2 reduction reactor. The IORS enables two major life support systems currently baselined in closed loop air revitalization systems to be combined into one smaller, less complex system. This concept reduces fluidic and electrical interface requirements and eliminates a hydrogen (H2) interface. Life Systems is performing an evaluation of the IORS process directed at demonstrating performance and quantifying key physical characteristics including power, weight, and volume. Technical progress achieved during the first two months of the program is summarized.

Lee, M. Gene; Davenport, Ronald J.

1993-01-01

375

Integrated oxygen recovery system  

NASA Technical Reports Server (NTRS)

Life Systems has conceptualized an innovative Integrated Oxygen Recovery System (IORS) applicable to advanced mission air revitalization. The IORS provides the capability to electrochemically generate metabolic oxygen (O2) and recover O2 from the space habitat atmosphere via a carbon dioxide (CO2) reduction process within a single assembly. To achieve this capability, the IORS utilizes a Solid Metal Cathode (SMC) water electrolysis unit that simultaneously serves as the Sabatier CO2 reduction reactor. The IORS enables two major life support systems currently baselined in closed loop air revitalization systems to be combined into one smaller, less complex system. This concept reduces fluidic and electrical interface requirements and eliminates a hydrogen (H2) interface. Life Systems is performing an evaluation of the IORS process directed at demonstrating performance and quantifying key physical characteristics including power, weight, and volume. The results of the checkout, shakedown, and initial parametric tests are summarized.

Lee, M. Gene; Davenport, Ronald J.

1993-01-01

376

Solar System Viewers  

NSDL National Science Digital Library

This website contains three separate programs that produce animations of different aspects of our solar system. The Solar System Viewer indicates the location of terrestrial planets, gas giants, the asteroid belt, Kuiper Belt and comets in relation to the Sun. This program helps to give a sense of size and location within our solar system. The Other Solar Systems Viewer animates the recent discoveries of planets orbiting other stars. This application gives an animation of how these other solar systems operate. The Satellite Viewer animates the moons of the planets in our solar system to show their names and where they are located around their respective planets. The gas giants Jupiter, Saturn, Uranus and Neptune have more than one animation to show the different groups of moons that orbit them. The moons and planets in this animation are to scale to indicate size comparisons.

Ashbury, Mike; Hamilton, Douglas

377

Ethical Expert Systems  

PubMed Central

The title is a double entendre. The discussion approaches expert systems from two directions: “What ethical hazards are created by expert systems in medicine?” and “Would it be ethical to design an expert system for solving problems in bioethics?” Computers present new ethical problems to society, some of which are unprecedented. These can be categorized under several rubrics. The paper describes a rudimentary scheme for understanding ethical issues raised by computers, in general, and medical expert systems, in particular. It focuses on bioethical implications of AI in medicine; explores norms, assumptions and taboos; and highlights certain ethical pitfalls. Principles are elucidated, for building ethically sound systems. Finally, a proposal is discussed, for the design of an expert system for moral problem solving, and the ethical implications of this notion are analyzed.

Victoroff, Michael S.

1985-01-01

378

Personnel Access Safety System  

SciTech Connect

This paper describes the method and system used to control personnel accesses into hazardous areas at the Superconducting Super Collider. Hazards encountered are electrical (high voltage and high current), radiation (ionizing), cryogenic fluids (liquid helium and nitrogen), flammable gases, and ultra high magnetic fields. Although these are a diverse group of hazards, virtually all can be mitigated by controlling accesses into the hazardous enclosures. The Personnel Access Safety System (PASS) is used for this purpose. The system is comprised of dual redundant Programmable Logic Controllers (PLC) using loo2 voting (either system can bring the system down to a safe state). Numerous safety related hardware and software features have been built into this system to assure high reliability and availability.

Parry, R.R.

1992-06-01

379

Fractional Dynamical Systems  

E-print Network

In this paper the author presents the results of the preliminary investigation of fractional dynamical systems based on the results of numerical simulations of fractional maps. Fractional maps are equivalent to fractional differential equations describing systems experiencing periodic kicks. Their properties depend on the value of two parameters: the non-linearity parameter, which arises from the corresponding regular dynamical systems; and the memory parameter which is the order of the fractional derivative in the corresponding non-linear fractional differential equations. The examples of the fractional Standard and Logistic maps demonstrate that phase space of non-linear fractional dynamical systems may contain periodic sinks, attracting slow diverging trajectories, attracting accelerator mode trajectories, chaotic attractors, and cascade of bifurcations type trajectories whose properties are different from properties of attractors in regular dynamical systems. The author argues that discovered properties should be evident in the natural (biological, psychological, physical, etc.) and engineering systems with power-law memory.

Mark Edelman

2013-12-30

380

SSME Post Test Diagnostic System: Systems Section  

NASA Technical Reports Server (NTRS)

An assessment of engine and component health is routinely made after each test firing or flight firing of a Space Shuttle Main Engine (SSME). Currently, this health assessment is done by teams of engineers who manually review sensor data, performance data, and engine and component operating histories. Based on review of information from these various sources, an evaluation is made as to the health of each component of the SSME and the preparedness of the engine for another test or flight. The objective of this project - the SSME Post Test Diagnostic System (PTDS) - is to develop a computer program which automates the analysis of test data from the SSME in order to detect and diagnose anomalies. This report primarily covers work on the Systems Section of the PTDS, which automates the analyses performed by the systems/performance group at the Propulsion Branch of NASA Marshall Space Flight Center (MSFC). This group is responsible for assessing the overall health and performance of the engine, and detecting and diagnosing anomalies which involve multiple components (other groups are responsible for analyzing the behavior of specific components). The PTDS utilizes several advanced software technologies to perform its analyses. Raw test data is analyzed using signal processing routines which detect features in the data, such as spikes, shifts, peaks, and drifts. Component analyses are performed by expert systems, which use 'rules-of-thumb' obtained from interviews with the MSFC data analysts to detect and diagnose anomalies. The systems analysis is performed using case-based reasoning. Results of all analyses are stored in a relational database and displayed via an X-window-based graphical user interface which provides ranked lists of anomalies and observations by engine component, along with supporting data plots for each.

Bickmore, Timothy

1995-01-01

381

Quality monitored distributed voting system  

DOEpatents

A quality monitoring system can detect certain system faults and fraud attempts in a distributed voting system. The system uses decoy voters to cast predetermined check ballots. Absent check ballots can indicate system faults. Altered check ballots can indicate attempts at counterfeiting votes. The system can also cast check ballots at predetermined times to provide another check on the distributed voting system. 6 figs.

Skogmo, D.

1997-03-18

382

Extensible file systems in spring  

Microsoft Academic Search

In this paper we describe an architecture for extensible file systems. The architecture enables the extension of file system functionality by composing (or stacking) new file systems on top of existing file systems. A file system that is stacked on top of an existing file system can access the existing file system's files via a well-defined naming interface and can

Yousef A. Khalidi; Michael N. Nelson

1993-01-01

383

On Benchmarking Popular File Systems  

Microsoft Academic Search

In recent years, Windows, Linux and BSD have become dominant operating systems in personal computers (1). An essential component of the operating system is its file system. Although there are reports (2, 3) on evaluation of file systems under the same operating system, it is necessary to assess the performance of different file systems under their associated operating systems to

Matti Vanninen; James Z. Wang

384

Extensible file systems in spring  

Microsoft Academic Search

In this paper we describe an architecture for extensible file systems. The architecture enables the extension of file system functionality by composing (or stacking) new file systems on top of existing file systems. A file system that is stacked on top of an existing file system can access the existing file system's files via a well-defined naming interface and can

Yousef A. Khalidi; Michael N. Nelson

1994-01-01

385

Quality monitored distributed voting system  

SciTech Connect

A quality monitoring system can detect certain system faults and fraud attempts in a distributed voting system. The system uses decoy voters to cast predetermined check ballots. Absent check ballots can indicate system faults. Altered check ballots can indicate attempts at counterfeiting votes. The system can also cast check ballots at predetermined times to provide another check on the distributed voting system.

Skogmo, David (Albuquerque, NM)

1997-01-01

386

Logics for hybrid systems  

Microsoft Academic Search

Hybrid systems are heterogenous dynamical systems characterized by interacting continuous and discrete dynamics. Such mathematical models have proved fruitful in a great diversity of engineering applications, including air-traffic control, automated manufacturing, and chemical process control. The high-profile and safety-critical nature of the application areas has fostered a large and growing body of work on formal methods for hybrid systems: mathematical

J. M. Davoren; ANIL NERODE

2000-01-01

387

Solid source MOCVD system  

DOEpatents

A system for MOCVD fabrication of superconducting and non-superconducting oxide films provides a delivery system for the feeding of metallorganic precursors for multi-component chemical vapor deposition. The delivery system can include multiple cartridges containing tightly packed precursor materials. The contents of each cartridge can be ground at a desired rate and fed together with precursor materials from other cartridges to a vaporization zone and then to a reaction zone within a deposition chamber for thin film deposition. 13 figs.

Hubert, B.N.; Wu, X.D.

1998-10-13

388

Maritime Intelligent Transport Systems  

NASA Astrophysics Data System (ADS)

The concept of intelligent transport systems, developed since 1980s, includes all modes of transport. Relevant developments in road transport are the most advanced. Recently water transport, particularly maritime transport, has gained more attention in this respect, in connection with building and further developments of maritime intelligent transport systems. The present state and directions of development of telematic systems in maritime transport will be discussed, with a focus on marine navigation.

Pietrzykowski, Zbigniew

389

Earth orbit laser systems  

NASA Technical Reports Server (NTRS)

At the state-of-the-art efficiencies, both nuclear and solar-driven systems require equal masses for the same laser powers in the 50 to 500 MW range, typically 3,700 tons for a 100-MW thruster. Future efficiency improvement of solar panel and laser diode array will realize significant reduction (by a factor of 3) in system masses. Beaming time for laser propulsion is relatively short and other missions should be considered for increasing the system duty cycle.

Lee, Ja H.

1989-01-01

390

Precision displacement reference system  

DOEpatents

A precision displacement reference system is described, which enables real time accountability over the applied displacement feedback system to precision machine tools, positioning mechanisms, motion devices, and related operations. As independent measurements of tool location is taken by a displacement feedback system, a rotating reference disk compares feedback counts with performed motion. These measurements are compared to characterize and analyze real time mechanical and control performance during operation.

Bieg, Lothar F. (Albuquerque, NM); Dubois, Robert R. (Albuquerque, NM); Strother, Jerry D. (Edgewood, NM)

2000-02-22

391

Drone Control System  

NASA Technical Reports Server (NTRS)

Drones, subscale vehicles like the Firebees, and full scale retired military aircraft are used to test air defense missile systems. The DFCS (Drone Formation Control System) computer, developed by IBM (International Business Machines) Federal Systems Division, can track ten drones at once. A program called ORACLS is used to generate software to track and control Drones. It was originally developed by Langley and supplied by COSMIC (Computer Software Management and Information Center). The program saved the company both time and money.

1983-01-01

392

Mental health promotion system.  

PubMed

Mental activity promotion system is presented that analyzes, quantifies, trains and prescribes based on analysis of logical, memorizing, concentrative, decisive, in conditions where time and space is involved, possibility of dementia, and on evaluation of lifestyle of subjects. Special consideration has been made to make the system motivational, persuasive, attractive and fun to use. The system has been successfully deployed in Bitgeoul Senior health town, Gwangju, South Korea. PMID:22255530

Farooq, Umar; Jang, Dae-Geun; Jang, Jae-Keun; Park, Seung-Hun

2011-01-01

393

Computer Immune Systems  

NSDL National Science Digital Library

A research group at the University of New Mexico Computer Science Department is using an analogy to biological immune systems to develop similarly functioning computer security systems. This is a significant departure from existing methods. Computer immune systems are designed to detect and contain intrusions in the same way their biological counterparts deal with viruses and infections. The research group has a large collection of papers from conferences and journals available on its homepage.

394

Mathematical circulatory system model  

NASA Technical Reports Server (NTRS)

A system and method of modeling a circulatory system including a regulatory mechanism parameter. In one embodiment, a regulatory mechanism parameter in a lumped parameter model is represented as a logistic function. In another embodiment, the circulatory system model includes a compliant vessel, the model having a parameter representing a change in pressure due to contraction of smooth muscles of a wall of the vessel.

Lakin, William D. (Inventor); Stevens, Scott A. (Inventor)

2010-01-01

395

Dimensions of systems biology  

Microsoft Academic Search

Systems biology, possibly the latest sub-discipline of biology, has arisen as a result of the shockwave of genomic and proteomic\\u000a data that has appeared in the past few years. However, despite ubiquitous initiatives that carry this label, there is no precise\\u000a definition of systems biology other than the implication of a new, all-encompassing, multidisciplinary endeavor. Here we propose\\u000a that systems biology is

S. Huang; J. Wikswo

396

Frequency domain measurement systems  

NASA Technical Reports Server (NTRS)

Stable frequency sources and signal processing blocks were characterized by their noise spectra, both discrete and random, in the frequency domain. Conventional measures are outlined, and systems for performing the measurements are described. Broad coverage of system configurations which were found useful is given. Their functioning and areas of application are discussed briefly. Particular attention is given to some of the potential error sources in the measurement procedures, system configurations, double-balanced-mixer-phase-detectors, and application of measuring instruments.

Eischer, M. C.

1978-01-01

397

Heat Pipe Systems  

NASA Technical Reports Server (NTRS)

Solar Fundamentals, Inc.'s hot water system employs space-derived heat pipe technology. It is used by a meat packing plant to heat water for cleaning processing machinery. Unit is complete system with water heater, hot water storage, electrical controls and auxiliary components. Other than fans and a circulating pump, there are no moving parts. System's unique design eliminates problems of balancing, leaking, corroding, and freezing.

1988-01-01

398

Geographic Names Information System  

USGS Publications Warehouse

The Geographic Names Information System (GNIS) is an automated data system developed by the U.S. Geological Survey (USGS) to standardize and disseminate information on geographic names. GNIS provides primary information for all known places, features, and areas in the United States identified by a proper name. The information in the system can be manipulated to meet varied needs. You can incorporate information from GNIS into your own data base for special applications.

U.S. Geological Survey

1984-01-01

399

Solid source MOCVD system  

DOEpatents

A system for MOCVD fabrication of superconducting and non-superconducting oxide films provides a delivery system for the feeding of metalorganic precursors for multi-component chemical vapor deposition. The delivery system can include multiple cartridges containing tightly packed precursor materials. The contents of each cartridge can be ground at a desired rate and fed together with precursor materials from other cartridges to a vaporization zone and then to a reaction zone within a deposition chamber for thin film deposition.

Hubert, Brian N. (Yakima, WA); Wu, Xin Di (San Jose, CA)

1998-01-01

400

Energy Recovery System  

NASA Astrophysics Data System (ADS)

Cogeneration system is one in which the energy ordinarily wasted in an industrial process is recovered and reused to create a second form of energy. Such an energy recovery system is in use at Crane Company's plant in Ferguson, KY, which manufactures ceramic bathroom fixtures. Crane's system captures hot stack gases from the company's four ceramic kilns and uses them to produce electrical power for plant operations.

1983-01-01

401

Energy scalable system design  

Microsoft Academic Search

We introduce the notion of energy-scalable system- design. The principal idea is to maximize computational quality for a given energy constraint at all levels of the system hierarchy. The desirable energy-quality (E-Q) characteristics of systems are dis- cussed. E-Q behavior of algorithms is considered and transforms that significantly improve scalability are analyzed using three dis- tinct categories of commonly used

Amit Sinha; Alice Wang; Anantha Chandrakasan

2002-01-01

402

FNAL central email systems  

SciTech Connect

The FNAL Email System is the primary point of entry for email destined for an employee or user at Fermilab. This centrally supported system is designed for reliability and availability. It uses multiple layers of protection to help ensure that: (1) SPAM messages are tagged properly; (2) All mail is inspected for viruses; and (3) Valid mail gets delivered. This system employs numerous redundant subsystems to accomplish these tasks.

Schmidt, Jack; Lilianstrom, Al; Pasetes, Ray; Hill, Kevin; /Fermilab

2004-10-01

403

Kestrel balloon launch system  

Microsoft Academic Search

Kestrel is a high-altitude, Helium-gas-filled-balloon system used to launch scientific payloads in winds up to 20 knots, from small platforms or ships, anywhere over land or water, with a minimal crew and be able to hold in standby conditions. Its major components consist of two balloons (a tow balloon and a main balloon), the main deployment system, helium measurement system,

1991-01-01

404

Building Hydroponic Systems  

NSDL National Science Digital Library

Welcome!  "Buildling Hydroponic Systems"  in an educational project being developed by the Waters Lab at the University of Nebraska-Lincoln. Dr. Brian Waters has developed a system that can be used by researchers and educators to experiment with the uses of hydroponic systems. Please join this community for updates as new learning materials become available.  This site has been developed through grant funding provided by the National Science Foundation (NSF). 

405

Autonomic Nervous System  

Microsoft Academic Search

\\u000a The autonomic nervous system and the role it plays in governing the behavior of the cardiovascular system is immense in both\\u000a its complexity and importance to life. The antagonistic nature of the parasympathetic and sympathetic branches of this system\\u000a allows rapid and essential changes in cardiac parameters such as heart rate, contractility, and stroke volume in order to\\u000a deliver metabolites

Kevin Fitzgerald; Robert F. Wilson; Paul A. Iaizzo

406

Solar energy collection system  

NASA Technical Reports Server (NTRS)

An improved solar energy collection system, having enhanced energy collection and conversion capabilities, is delineated. The system is characterized by a plurality of receivers suspended above a heliostat field comprising a multiplicity of reflector surfaces, each being adapted to direct a concentrated beam of solar energy to illuminate a target surface for a given receiver. A magnitude of efficiency, suitable for effectively competing with systems employed in collecting and converting energy extracted from fossil fuels, is indicated.

Selcuk, M. K. (inventor)

1977-01-01

407

Institute for Systems Biology  

NSDL National Science Digital Library

The Institute for Systems Biology was founded earlier this year by Dr. Leroy Hood, former professor of Molecular Biology at the University of Washington in Seattle. The Institute will combine experts in the fields of science and industry to pioneer research advances in the field of systems biology -- through work on cells, proteins, and genes. The homepage introduces the Institute's mission, systems biology (concepts that form its foundation), participating Institute faculty (and other partnerships), and a host of recent articles about the Institute.

1969-12-31

408

Vision Systems Design  

NSDL National Science Digital Library

Vision Systems Design is a magazine that provides comprehensive information and analyses about "machine-vision and imaging components, boards, assemblies, software, and systems." Its online version is free and has many Web-exclusive features available. For example, Back to Basics is a series of technical articles about a certain topic; the February 2003 issue has articles on FireWire interfaces, infrared systems used to increase vehicle safety, and much more. Technology news and industry trends are also provided online.

2003-01-01

409

Observability for hybrid systems  

Microsoft Academic Search

The notion of generic final-state asymptotically determinable hybrid system is introduced. Then, sufficient conditions for a linear hybrid system to be generic final-state asymptotically determinable are given. These conditions show that generic final-state asymptotic determinability can be verified even if each of the continuous subsystems of the hybrid system is not observable. More precisely, these conditions are related to the

Andrea Balluchi; Luca Benvenuti; M. D. Di Benedetto; A. L. Sangiovanni-Vincentelli

2003-01-01

410

Learning Classifier Systems  

Microsoft Academic Search

Learning Classifier Systems are a machine learning technique that may be categorised in between symbolic production systems and sub-symbolic connectionist systems. Classifiers are cognitive paradigm for adaptation that learn in environments of perpetual novelty with minimal and delayed reward. They employ two principle processes (1) reinforcement learning called 'trial-and-error', and genetic evolution called 'survival-of-the-fittest'. This work provides a brief review

JASON BROWNLEE

411

Automated Status Notification System  

NASA Technical Reports Server (NTRS)

NASA Lewis Research Center's Automated Status Notification System (ASNS) was born out of need. To prevent "hacker attacks," Lewis' telephone system needed to monitor communications activities 24 hr a day, 7 days a week. With decreasing staff resources, this continuous monitoring had to be automated. By utilizing existing communications hardware, a UNIX workstation, and NAWK (a pattern scanning and processing language), we implemented a continuous monitoring system.

2005-01-01

412

Firefly system concept  

NASA Technical Reports Server (NTRS)

The 'Firefly' project has developed and implemented an infrared (IR) remote sensing prototype system based on the concept presented. The Firefly system produces images through smoke that will provide near real-time wildland fire information for fire management and suppression. The prototype will be tested through the 1991 fire season. Results of the testing will be incorporated into the final system design for operational use at the end of 1992.

Nichols, J. D.

1991-01-01

413

Water Purification Systems  

NASA Technical Reports Server (NTRS)

A water purification/recycling system developed by Photo-Catalytics, Inc. (PCI) for NASA is commercially available. The system cleanses and recycles water, using a "photo-catalysis" process in which light or radiant energy sparks a chemical reaction. Chemically stable semiconductor powders are added to organically polluted water. The powder absorbs ultraviolet light, and pollutants are oxidized and converted to carbon dioxide. Potential markets for the system include research and pharmaceutical manufacturing applications, as well as microchip manufacture and wastewater cleansing.

1992-01-01

414

SAS Attitude Support System  

NASA Technical Reports Server (NTRS)

A unique ground control system was designed and implemented to support and meet the stringent mission requirements of the SAS-1. The important features of the system are described with emphasis on the software used to control the orientation of the spacecraft. A summary of the system's operation during the SAS-1 mission is given along with a discussion of the performance of the software subsystems relative to the mission requirements.

Snyder, J. L.; Meyers, G. F.

1972-01-01

415

Build a Solar System  

NSDL National Science Digital Library

In this activity, learners make a scale model of the Solar System and learn the real definition of "space." Learners use the online calculator to create an appropriate scale to use as a basis for their model. Once learners have their scaled measurements (diameters and distances), then they can walk and "pace out" the solar system by marking sticks or flags in the ground. Learners can also build a solar system on a roll of toilet paper or receipt paper.

Hipschman, Ron

1997-01-01

416

Amos World Testing System  

NSDL National Science Digital Library

AmosWorld Testing System is developed by Orley M. Amos, Jr., Professor of Economics at Oklahoma State University. The testing system allows users to retrieve up to ten multiple choice questions on various economics topics. Among the topics covered are scarcity, business cycles, GDP, money and unemployment. After the users have answered the multiple choice questions, the testing system will notify the users which of the questions were answered correctly. The site does not provide the correct answer for incorrect choices, however.

Amos, Orley M., 1954-.

1997-01-01

417

Muscular and Skeletal Systems  

NSDL National Science Digital Library

What do the muscular and skeletal systems do? Identify structures and functions of the muscular and skeletal systems of the human body. (S3.6) You are going to watch a Movie of muscular system. I'm going to hand out a worksheet and you need to write three facts that you have learned from the video in the spaces provided and then fill out the chart about the three types of muscles. Now you are going to do a ...

Jeni, Ms.

2010-11-03

418

World-Systems Theorizing  

Microsoft Academic Search

The intellectual history of world-systems theorizing has roots in classical sociology, Marxian revolutionary theory, geopolitical strategizing, and theories of social evolution. But in explicit form the world-systems perspective emerged only in the 1970s when Samir Amin, Andre Gunder Frank, and Immanuel Wallerstein began to formulate the concepts and to narrate the analytic history of the modem world system. Especially for

Christopher Chase-Dunn

419

Remote Systems Design & Deployment  

SciTech Connect

The Pacific Northwest National Laboratory (PNNL) was tasked by Washington River Protection Solutions, LLC (WRPS) to provide information and lessons learned relating to the design, development and deployment of remote systems, particularly remote arm/manipulator systems. This report reflects PNNL’s experience with remote systems and lays out the most important activities that need to be completed to successfully design, build, deploy and operate remote systems in radioactive and chemically contaminated environments. It also contains lessons learned from PNNL’s work experiences, and the work of others in the national laboratory complex.

Bailey, Sharon A.; Baker, Carl P.; Valdez, Patrick LJ

2009-08-28

420

METEORIC-HYDROTHERMAL SYSTEMS.  

USGS Publications Warehouse

This paper summarizes the salient characteristics of meteoric-hydrothermal systems, emphasing the isotopic systematics. Discussions of permeable-medium fluid dynamics and the geology and geochemistry of modern geothermal systems are also provided, because they are essential to any understanding of hydrothermal circulation. The main focus of the paper is on regions of ancient meteoric-hydrothermal activity, which give us information about the presently inaccessible, deep-level parts of modern geothermal systems. It is shown oxygen and hydrogen isotopes provide a powerful method to discover and map fossil hydrothermal systems and to investigate diverse associated aspects of rock alteration and ore deposition.

Criss, Robert, E.; Taylor, Jr. , Hugh, P.

1986-01-01

421

Intelligent flight control systems  

NASA Technical Reports Server (NTRS)

The capabilities of flight control systems can be enhanced by designing them to emulate functions of natural intelligence. Intelligent control functions fall in three categories. Declarative actions involve decision-making, providing models for system monitoring, goal planning, and system/scenario identification. Procedural actions concern skilled behavior and have parallels in guidance, navigation, and adaptation. Reflexive actions are spontaneous, inner-loop responses for control and estimation. Intelligent flight control systems learn knowledge of the aircraft and its mission and adapt to changes in the flight environment. Cognitive models form an efficient basis for integrating 'outer-loop/inner-loop' control functions and for developing robust parallel-processing algorithms.

Stengel, Robert F.

1993-01-01

422

Analyzing Feedback Control Systems  

NASA Technical Reports Server (NTRS)

Interactive controls analysis (INCA) program developed to provide user-friendly environment for design and analysis of linear control systems, primarily feedback control. Designed for use with both small- and large-order systems. Using interactive-graphics capability, INCA user quickly plots root locus, frequency response, or time response of either continuous-time system or sampled-data system. Configuration and parameters easily changed, allowing user to design compensation networks and perform sensitivity analyses in very convenient manner. Written in Pascal and FORTRAN.

Bauer, Frank H.; Downing, John P.

1987-01-01

423

Solar Electric System  

NASA Technical Reports Server (NTRS)

Heat Pipe Technology, Inc. undertook the development of a PV system that could bring solar electricity to the individual home at reasonable cost. His system employs high efficiency PV modules plus a set of polished reflectors that concentrate the solar energy and enhance the output of the modules. Dinh incorporated a sun tracking system derived from space tracking technology. It automatically follows the sun throughout the day and turns the modules so that they get maximum exposure to the solar radiation, further enhancing the system efficiency.

1987-01-01

424

Dr. Dobb's Embedded Systems  

NSDL National Science Digital Library

Embedded Systems is one of the specialized sites stemming from Dr. Dobb's Journal. In addition to serving as an excellent source of news and product development articles, the site is a portal to many other Internet resources on embedded system applications. Information tailored to specific programming languages, like C++, Java, and many others, is grouped into separate categories. There are also focuses on Linux-driven handhelds and other embedded operating systems. A list of toolkits for embedded system developers is also provided, which is especially useful for finding open source solutions.

2002-01-01

425

Safety system status monitoring  

SciTech Connect

The Pacific Northwest Laboratory has studied the safety aspects of monitoring the preoperational status of safety systems in nuclear power plants. The goals of the study were to assess for the NRC the effectiveness of current monitoring systems and procedures, to develop near-term guidelines for reducing human errors associated with monitoring safety system status, and to recommend a regulatory position on this issue. A review of safety system status monitoring practices indicated that current systems and procedures do not adequately aid control room operators in monitoring safety system status. This is true even of some systems and procedures installed to meet existing regulatory guidelines (Regulatory Guide 1.47). In consequence, this report suggests acceptance criteria for meeting the functional requirements of an adequate system for monitoring safety system status. Also suggested are near-term guidelines that could reduce the likelihood of human errors in specific, high-priority status monitoring tasks. It is recommended that (1) Regulatory Guide 1.47 be revised to address these acceptance criteria, and (2) the revised Regulatory Guide 1.47 be applied to all plants, including those built since the issuance of the original Regulatory Guide.

Lewis, J.R.; Morgenstern, M.H.; Rideout, T.H.; Cowley, P.J.

1984-03-01

426

Jupiter System Observer  

NASA Technical Reports Server (NTRS)

This slide presentation reviews the proposed mission for the Jupiter System Observer. The presentation also includes overviews of the mission timeline, science goals, and spacecraftspecifications for the satellite.

Senske, Dave; Kwok, Johnny

2008-01-01

427

Developing Data System Engineers  

NASA Astrophysics Data System (ADS)

In the early days of general computer systems for science data processing, staff members working on NASA's data systems would most often be hired as mathematicians. Computer engineering was very often filled by those with electrical engineering degrees. Today, the Goddard Space Flight Center has special position descriptions for data scientists or as they are more commonly called: data systems engineers. These staff members are required to have very diverse skills, hence the need for a generalized position description. There is always a need for data systems engineers to develop, maintain and operate the complex data systems for Earth and space science missions. Today's data systems engineers however are not just mathematicians, they are computer programmers, GIS experts, software engineers, visualization experts, etc... They represent many different degree fields. To put together distributed systems like the NASA Earth Observing Data and Information System (EOSDIS), staff are required from many different fields. Sometimes, the skilled professional is not available and must be developed in-house. This paper will address the various skills and jobs for data systems engineers at NASA. Further it explores how to develop staff to become data scientists.

Behnke, J.; Byrnes, J. B.; Kobler, B.

2011-12-01

428

Noisy Nonlinear Systems  

SciTech Connect

During the one-year period 2004-2005 our work continued to focus on nonlinear noisy systems, with special attention to spatially extended systems. There is a history of many decades of research in the sciences and engineering on the behavior of noninear noisy systems, but only in the past ten years or so has a theoretical understanding of spatially extended systems begun to emerge. This has been the outcome of a symbiosis of numerical simulations not possible until recently, laboratory experiments, and new analytic methods.

Dr. Katja Lindenberg

2005-11-20

429

Dual cure photocatalyst systems  

SciTech Connect

A family of dual cure photocatalyst systems is being developed to be used in the solventless processing of organic coatings. The photocatalyst systems consist of organometallic compounds often in combination with other agents. Upon photolysis, the photocatalyst system generates a Lewis acid and a free radical. The Lewis acid can initiate the polymerization of epoxies or the addition of isocyanates and polyols to form polyurethanes while the free radical can initiate the polymerization of acrylates. The performance of the various photocatalyst systems will be compared on the basis of the physical properties of the cured compositions they produce. 17 figs.

DeVoe, R.J.; Brown-Wensley, K.A.; Holmes, G.L.; Mathis, M.D.; McCormick, F.B.; Palazzotto, M.C.; Spurgeon, K.M. (Minnesota Mining and Mfg. Co., St. Paul, MN (USA). Corporate Research Labs.)

1990-01-01

430

Cockpit control system  

NASA Technical Reports Server (NTRS)

The purpose of this project is to provide a detail design for the cockpit control system of the Viper PFT. The statement of work for this project requires provisions for control of the ailerons, elevator, rudder, and elevator trim. The system should provide adjustment for pilot stature, rigging, and maintenance. MIL-STD-1472 is used as a model for human factors criterion. The system is designed to the pilot limit loading outlined in FAR part 23.397. The general philosophy behind this design is to provide a simple, reliable control system which will withstand the daily abuse that is experienced in the training environment without excessive cost or weight penalties.

Lesnewski, David; Snow, Russ M.; Paufler, Dave; Schnieder, George; Athousake, Roxanne; Combs, Lisa

1993-01-01

431

Validation of expert systems  

NASA Technical Reports Server (NTRS)

The validation of expert systems (ESs) has only recently become an active AI research topic. Current approaches have concentrated mainly on the validation of rule properties of such systems. The efforts presented improves on current methods by also exploiting the structural and semantic information of such systems. To increase programmer productivity, more and more companies have begun exploiting the advent of AI technology by developing applications using ES shells or other AI-based high level program generators. The architecture, functionality, and future goals of Expert Systems Validation are described along with the features that have been implemented for and in Automated Reasoning Tool, the ES shell presented.

Stachowitz, Rolf A.; Combs, Jacqueline B.

1988-01-01

432

Systems View of Electronics  

NSDL National Science Digital Library

Today, the greater part of tech work now deals with a higher level. Specifically, he or she works more with larger PCBs containing many ICs, plug-in modules, subassemblies, and complete pieces of equipment, and entire systems as well as their power and cabling. The technician's work is at a higher level. The focus is on signal flow through the system and testing the system to see that it meets specific standards. Rarely does the tech replace individual components as was once the case. This module presents an overview of how a technician should view electronic equipment and systems today and an approach to understanding their operation and troubleshooting.

2012-10-30

433

Number Systems for Computers  

NSDL National Science Digital Library

Understanding number systems, especially Binary and Hexadecimal, is important to comprehending how computers function. It all begins with the magic circle we call ZERO. Work through the exercises in the order listed to gain some background in number systems and what makes it possible for computers to work. The magic of ZeroPlace Value Place Value Fun!Place Value Fun! One if by land, Two if by sea.The Binary System And then there were sixteen....hexadecimal Hexadecimal Headquarters Mr Booth s Computer Systems Class Student Learning Domain ...

Mrbooth

2007-09-19

434

Probabilistic simple splicing systems  

NASA Astrophysics Data System (ADS)

A splicing system, one of the early theoretical models for DNA computing was introduced by Head in 1987. Splicing systems are based on the splicing operation which, informally, cuts two strings of DNA molecules at the specific recognition sites and attaches the prefix of the first string to the suffix of the second string, and the prefix of the second string to the suffix of the first string, thus yielding the new strings. For a specific type of splicing systems, namely the simple splicing systems, the recognition sites are the same for both strings of DNA molecules. It is known that splicing systems with finite sets of axioms and splicing rules only generate regular languages. Hence, different types of restrictions have been considered for splicing systems in order to increase their computational power. Recently, probabilistic splicing systems have been introduced where the probabilities are initially associated with the axioms, and the probabilities of the generated strings are computed from the probabilities of the initial strings. In this paper, some properties of probabilistic simple splicing systems are investigated. We prove that probabilistic simple splicing systems can also increase the computational power of the splicing languages generated.

Selvarajoo, Mathuri; Heng, Fong Wan; Sarmin, Nor Haniza; Turaev, Sherzod

2014-06-01

435

TROPIX power system architecture  

NASA Technical Reports Server (NTRS)

This document contains results obtained in the process of performing a power system definition study of the TROPIX power management and distribution system (PMAD). Requirements derived from the PMADs interaction with other spacecraft systems are discussed first. Since the design is dependent on the performance of the photovoltaics, there is a comprehensive discussion of the appropriate models for cells and arrays. A trade study of the array operating voltage and its effect on array bus mass is also presented. A system architecture is developed which makes use of a combination of high efficiency switching power convertors and analog regulators. Mass and volume estimates are presented for all subsystems.

Manner, David B.; Hickman, J. Mark

1995-01-01

436

Corneal topography system  

NASA Astrophysics Data System (ADS)

A new corneal topography system is described which combines proven grid projection and stereo triangulation techniques with an innovative user interface which simplifies the data capture process. Principles of the imaging, measurement, and calibration processes used with the system are presented. The device generates a complete topographic model of the anterior corneal surface with spatial resolution of 0.2 millimeters and elevation accuracy of 2 microns. System applications include pre- and post-operative assessment of refractive surgery patients, contact lens fitting including specification of custom RGP lenses, and excimer surgery planning and simulation. The innovative features of the system are described along with preliminary results of accuracy evaluations.

Cambier, James L.; Gao, Yan

1998-03-01

437

The Serotonergic System  

NSDL National Science Digital Library

Serotonin is a neurotransmitter associated with a number of cognitive disorders, namely depression, bipolar disorder and schizophrenia. Professor Trevor Robbins explains how the serotoninergic system works.

2009-04-14

438

The Solar System  

NSDL National Science Digital Library

This is a lesson about the temperature on differnt planets in our solar system. Learners will explore the planetary temperature system. They explore how each aspect (e.g., mass, temperature and gravity) influences the system and the consequences of disrupting that system. The lesson models scientific inquiry using the 5E instructional model and includes teacher notes, prerequisite concepts, common misconceptions, student journal and reading. This is lesson 8 in the Astro-Venture Astronomy Unit. The lessons are designed for educators to use in conjunction with the Astro-Venture multimedia modules.

439

The Solar System  

NSDL National Science Digital Library

The Solar System SciPack explores the solar system and the various bodies within it. The focus in on the Standards and Benchmarks related to how we have learned about the solar system and what we know about the planets, moons, and other bodies in the solar system. Special focus is also given to how the solar system and its bodies formed. In addition to comprehensive inquiry-based learning materials tied to Science Education Standards and Benchmarks, the SciPack includes the following additional components:� Pedagogical Implications section addressing common misconceptions, teaching resources and strand maps linking grade band appropriate content to standards. � Access to one-on-one support via e-mail to content "Wizards".� Final Assessment which can be used to certify mastery of the concepts.Learning Outcomes:Solar System: The Earth in Space� Explain that we discovered and learn about the other planets through the use of various kinds of telescopes, space probes, and other technologies.� Relate observations of the motion of objects in the sky to a Sun-centric model of the solar system, including observations of the "wandering" stars (planets) from Earth's frame of reference.� Recognize that Earth is one of the planets in the solar system, that it orbits the Sun just as the other planets do.Solar System: A Look at the Planets� Describe, compare, and contrast the following basic features of the planets in our solar system: size, composition, atmosphere, periods of rotation and revolution, surface features, and ring systems.� Describe the similarities and differences between the terrestrial and Jovian planets.� Describe, compare, and contrast the characteristics of planetary moons in our solar system.Solar System: Asteroids, Comets, and Meteorites� Describe the similarities and differences in comets, asteroids, and meteors.� Describe the size, composition, and motion of meteors, asteroids, and comets.� Differentiate between meteors, meteorites, and meteoroids, and explain what happens to meteors as they fall through Earth's atmosphere.� Explain how we learn about asteroids, comets, and meteorites.Solar System: Formation of Our Solar System� Provide the basic story line of how the solar system may have formed from the debris of exploding stars. � Relate the different characteristics and features of the planets to their different distances from the sun.� Explain some of the methods scientists have used to learn about the formation and evolution of the solar system.

National Science Teachers Association (NSTA)

2007-03-21

440

Next generation CAT system  

E-print Network

Two novel techniques for future CAT system are presented. Transmission descattering is a singleshot method to differentiate unscattered and scattered components of light transmission through a scattering material. ...

Kim, Jaewon, S.M. Massachusetts Institute of Technology

2010-01-01

441

Expert system technology  

NASA Technical Reports Server (NTRS)

The expert system is a computer program which attempts to reproduce the problem-solving behavior of an expert, who is able to view problems from a broad perspective and arrive at conclusions rapidly, using intuition, shortcuts, and analogies to previous situations. Expert systems are a departure from the usual artificial intelligence approach to problem solving. Researchers have traditionally tried to develop general modes of human intelligence that could be applied to many different situations. Expert systems, on the other hand, tend to rely on large quantities of domain specific knowledge, much of it heuristic. The reasoning component of the system is relatively simple and straightforward. For this reason, expert systems are often called knowledge based systems. The report expands on the foregoing. Section 1 discusses the architecture of a typical expert system. Section 2 deals with the characteristics that make a problem a suitable candidate for expert system solution. Section 3 surveys current technology, describing some of the software aids available for expert system development. Section 4 discusses the limitations of the latter. The concluding section makes predictions of future trends.

Prince, Mary Ellen

1987-01-01

442

Systems Engineering Handbook Foreword ................................ ................................ ................................ ............................ ix  

E-print Network

NASA Systems Engineering Handbook SP-610S June 1995 #12;Contents Foreword ................................ ................................ ................................ .... 1 Fundamentals of System Engineering ................................ ............................ 3 Definition of Systems Engineering

Rhoads, James

443

Genetics Home Reference: Systemic scleroderma  

MedlinePLUS

... What is systemic scleroderma? Systemic scleroderma is an autoimmune disorder that affects the skin and internal organs. Autoimmune disorders occur when the immune system malfunctions and attacks ...

444

Collaborative Systems Thinking Research: Exploring systems thinking within teams  

E-print Network

, interrelationships, context and dynamics towards executing systems design". This type of thinking is critically on large scale endeavors, where collaborative systems thinking is especially critical to achieveCollaborative Systems Thinking Research: Exploring systems thinking within teams Caroline T. Lamb

de Weck, Olivier L.

445

Collaborative Systems Thinking: Understanding of team-level systems thinking  

E-print Network

Caroline Twomey Lamb Massachusetts Institute of Technology Slide 5 Systems Thinking: A Critical SkillCollaborative Systems Thinking: Understanding of team-level systems thinking Caroline Twomey Lamb Science and Engineering Workforce: Interim report, 2006. H. Davidz. Enabling Systems Thinking

de Weck, Olivier L.

446

NASA Systems Reviewed Non-NASA Systems Reviewed Asset Feedback /  

E-print Network

NASA Systems Reviewed Non-NASA Systems Reviewed Asset Ownership Management License Management Asset Feedback / Review Management Feedback Submission Feedback Monitoring System Management Reporting & Metrics Submission Asset Approval Asset Removal /Cleanup Asset Revision Event Notification Reuse Enablement System

447

Real-Time Control System Software for Intelligent System Development  

E-print Network

arisen. Sys- tems operating with such controllers have been called Real-Time Control Systems (RCSReal-Time Control System Software for Intelligent System Development: Experiments Systems Development Several practical issues surround the development of complex real-time control

448

Kontrollierte therapeutische Systeme (Controlled drug delivery systems)  

NASA Astrophysics Data System (ADS)

Es gibt eine grosse Anzahl von Arzneistoffen, die nicht mit der höchsten Effizienz eingesetzt werden können, weil das geeignete therapeutische System (drug delivery system) für die optimale Applikation fehlt. Viele Arzneistoffe setzen eine häufige Anwendung voraus und sind oft mit mehr oder weniger starken Nebenwirkungen oder aber mit Beeinträchtigungen von Arbeits- und Lebensrhythmus der Patienten verbunden. Der therapeutische Erfolg einer medikamentösen Behandlung setzt eine korrekte Diagnose, die Wahl der richtigen Wirksubstanz sowie ihr Vorliegen in geeigneter Darreichungsform voraus. Zudem muss ein genauer Verabreichungsplan erstellt werden, dessen Einhaltung seitens der Patienten eine wesentliche Voraussetzung für die optimale Wirkung des Arzneistoffes ist. Das Mass, mit dem eine Wirksubstanz therapeutisch voll genutzt werden kann, korreliert direkt mit der Darreichungsform, in der sie angewandt wird. Da viele hochwirksame Arzneimittel bereits existieren, hat sich, neben Neuentwicklungen, das Interesse im vergangenen Jahrzehnt der Optimierung von Arzneimittelwirkungen durch neue Darreichungsformen zugewandt.

Ha, Suk-Woo; Wintermantel, Erich

449

System for controlling a hybrid energy system  

DOEpatents

A method includes identifying a first operating sequence of a repeated operation of at least one non-traction load. The method also includes determining first and second parameters respectively indicative of a requested energy and output energy of the at least one non-traction load and comparing the determined first and second parameters at a plurality of time increments of the first operating sequence. The method also includes determining a third parameter of the hybrid energy system indicative of energy regenerated from the at least one non-traction load and monitoring the third parameter at the plurality of time increments of the first operating sequence. The method also includes determining at least one of an energy deficiency or an energy surplus associated with the non-traction load of the hybrid energy system and selectively adjusting energy stored within the storage device during at least a portion of a second operating sequence.

Hoff, Brian D.; Akasam, Sivaprasad

2013-01-29

450

Dragon systems' 1998 broadcast news transcription system  

Microsoft Academic Search

In this paper we shall describe key improvements to Dragon'sBroadcast News Transcription System, which include: theaddition of a speaker-change detection algorithm to ourpreprocessing subsystem, a new diagonalizing transformationtrained using semi-tied covariances, and the addition ofprobabilities on pronunciations. This new transcription systemyields a word error rate of 15.2% on the 1997 evaluation testdata, and 14.5% on the 1998 evaluation test data.1.

Steven Wegmann; Puming Zhan; Ira Carp; Michael Newman; Jon Yamron; Larry Gillick

1999-01-01

451

Computational Systems Chemical Biology  

PubMed Central

There is a critical need for improving the level of chemistry awareness in systems biology. The data and information related to modulation of genes and proteins by small molecules continue to accumulate at the same time as simulation tools in systems biology and whole body physiologically-based pharmacokinetics (PBPK) continue to evolve. We called this emerging area at the interface between chemical biology and systems biology systems chemical biology, SCB (Oprea et al., 2007). The overarching goal of computational SCB is to develop tools for integrated chemical-biological data acquisition, filtering and processing, by taking into account relevant information related to interactions between proteins and small molecules, possible metabolic transformations of small molecules, as well as associated information related to genes, networks, small molecules and, where applicable, mutants and variants of those proteins. There is yet an unmet need to develop an integrated in silico pharmacology / systems biology continuum that embeds drug-target-clinical outcome (DTCO) triplets, a capability that is vital to the future of chemical biology, pharmacology and systems biology. Through the development of the SCB approach, scientists will be able to start addressing, in an integrated simulation environment, questions that make the best use of our ever-growing chemical and biological data repositories at the system-wide level. This chapter reviews some of the major research concepts and describes key components that constitute the emerging area of computational systems chemical biology. PMID:20838980

Oprea, Tudor I.; May, Elebeoba E.; Leitão, Andrei; Tropsha, Alexander

2013-01-01

452

Laser Inertial Navigation System  

NASA Technical Reports Server (NTRS)

Acceptable accuracy obtained with short alignment time. Report describes successful helicopter tests of laser inertial navigational equipment. Tests conducted over 3-year period, both in laboratory and flight. Inertial system used as position/velocity/attitude indicator and later also served as part of automatic flight-control system.

Hruby, R. J.; Xenakis, G.; Carestia, R. A.; Bjorkman, W. S.; Schmit, S. F.; Corliss, L. D.

1986-01-01

453

Complex systems: Network thinking  

Microsoft Academic Search

Like arti?cial intelligence in its earlier years, the ?eld of complex systems has received a lot of press in the last two decades, both positive and negative, breezily hyped and unjustly derogatory. As in the early years of AI, complex systems scientists have at times made promises and set up expectations that are hard for any young science to ful?ll.

Melanie Mitchell

2006-01-01

454

Heavy Vehicle Systems  

SciTech Connect

Heavy Vehicle (HV) systems are a necessary component of achieving OHVT goals. Elements are in place for a far-ranging program: short, intermediate, and long-term. Solicitation will bring industrial input and support. Future funding trend is positive, outlook for HV systems is good.

Sid Diamond; Richard Wares; Jules Routbort

2000-04-11

455

Molecules in Living Systems  

NSDL National Science Digital Library

This lesson explains the difference between molecules in living systems and inanimate objects. In living systems, atoms and molecules are organized to a much greater degree and provide the structure of the organism. Lipids, carbohydrates, proteins, and nucleic acids are also discussed.

2012-06-19

456

Overview of locking systems  

SciTech Connect

The purpose of this document is to present technical information that should be useful for understanding and applying locking systems for physical protection and control. There are major sections on hardware for locks, vaults, safes, and security containers. Other topics include management of lock systems and safety considerations. This document also contains notes on standards and specifications and a glossary.

Gee, K.T.; Scott, S.H.; Wilde, M.G. [Sandia National Labs., Albuquerque, NM (United States); Highland, S.E. [Albuquerque Safe Co., Albuquerque, NM (United States)

1993-12-01

457

Exhaust gas recirculation system  

Microsoft Academic Search

An exhaust gas recirculation system for use in an internal combustion engine includes an intake manifold having a riser portion serving as a heating source for an intake mixture charge, an exhaust gas recirculation passage running from an exhaust manifold to an intake system for introducing part of exhaust gases from the former to the latter, and a temperature-responsive valve

N. Kawai; H. Yamamoto

1980-01-01

458

Exhaust gas recirculating system  

Microsoft Academic Search

This patent describes an exhaust gas recirculating system for an internal combustion engine having an intake passage, a main throttle valve located in the intake passage, and an exhaust passage. The engine is installed in an automotive vehicle provided with a traction control system including means for sensing slippage of a drive wheel of the vehicle during acceleration, a second

H. Takahashi; T. Naganawa

1988-01-01

459

Mobile Student Information System  

ERIC Educational Resources Information Center

Purpose: A mobile student information system (MSIS) based on mobile computing and context-aware application concepts can provide more user-centric information services to students. The purpose of this paper is to describe a system for providing relevant information to students on a mobile platform. Design/methodology/approach: The research…

Asif, Muhammad; Krogstie, John

2011-01-01

460

Astrophysics data system  

Microsoft Academic Search

The Astrophysics Data System is intended to make NASA's current and future data holdings more broadly and efficiently accessible, and make the data itself more interpretable. It is to provide a common information system infrastructure for science analysis which reduces duplication of effort while increasing the scientific return from the various astrophysical missions. To achieve these goals the ADS has

F. Giovane

1992-01-01

461

Electron Beam Microfabrication Systems.  

National Technical Information Service (NTIS)

This report is a survey of electron beam microfabrication systems reported in the open literature as of 1 January 1977. Two categories of systems are identified based upon either beam scanning or beam projection as the image forming mechanism. In general,...

P. F. Ordung, J. Applebaum, H. F. Blazek

1977-01-01

462

Automotive Brake Systems.  

ERIC Educational Resources Information Center

This correspondence course, orginally developed for the Marine Corps, is designed to provide mechanics with an understanding of the basic operations of automotive brake systems on military vehicles. The course contains four study units covering hydraulic brakes, air brakes, power brakes, and auxiliary brake systems. A troubleshooting guide for…

Marine Corps Inst., Washington, DC.

463

Bantam System Technology Project  

NASA Technical Reports Server (NTRS)

This report focuses on determining a best value, low risk, low cost and highly reliable Data and Command System for support of the launch of low cost vehicles which are to carry small payloads into low earth orbit. The ground-based DCS is considered as a component of the overall ground and flight support system which includes the DCS, flight computer, mission planning system and simulator. Interfaces between the DCS and these other component systems are considered. Consideration is also given to the operational aspects of the mission and of the DCS selected. This project involved: defining requirements, defining an efficient operations concept, defining a DCS architecture which satisfies the requirements and concept, conducting a market survey of commercial and government off-the-shelf DCS candidate systems and rating the candidate systems against the requirements/concept. The primary conclusions are that several low cost, off-the-shelf DCS solutions exist and these can be employed to provide for very low cost operations and low recurring maintenance cost. The primary recommendation is that the DCS design/specification should be integrated within the ground and flight support system design as early as possible to ensure ease of interoperability and efficient allocation of automation functions among the component systems.

Moon, J. M.; Beveridge, J. R.

1998-01-01

464

Automated drug identification system  

NASA Technical Reports Server (NTRS)

System speeds up analysis of blood and urine and is capable of identifying 100 commonly abused drugs. System includes computer that controls entire analytical process by ordering various steps in specific sequences. Computer processes data output and has readout of identified drugs.

Campen, C. F., Jr.

1974-01-01

465

FOOD SYSTEM PLANNING FOR  

E-print Network

with an overview of the efficiency and environmental benefits associated local food systems. The Center for EnergyLOCAL FOOD SYSTEM POLICY AND PLANNING FOR SUSTAINABILITY FINAL REPORT for the Science, Engineering and international agencies and nonprofit organizations. The Center is composed of an internationally diverse faculty

Delaware, University of

466

Mission Medical Information System  

NASA Technical Reports Server (NTRS)

This viewgraph presentation gives an overview of the Mission Medical Information System (MMIS). The topics include: 1) What is MMIS?; 2) MMIS Goals; 3) Terrestrial Health Information Technology Vision; 4) NASA Health Information Technology Needs; 5) Mission Medical Information System Components; 6) Electronic Medical Record; 7) Longitudinal Study of Astronaut Health (LSAH); 8) Methods; and 9) Data Submission Agreement (example).

Johnson-Throop, Kathy A.; Joe, John C.; Follansbee, Nicole M.

2008-01-01

467

Principles of Skeptical Systems  

Microsoft Academic Search

The high degree of autonomy that is being built into today's control systems, coupled with their vulnerability to attack at the computer network level, mandates a recasting of the man-machine social contract. We now have the technology and the capability to enable these control systems to entertain \\

Steve A. Harp; Christopher W. Geib

2003-01-01

468

Quality Indicator System Report.  

ERIC Educational Resources Information Center

This report is a product of the implementation of a quality indicator system for Colorado's public higher education system. In 1999, the Colorado Commission on Higher Education established a core set of nine indicators, for which data were gathered and benchmarks were identified for measuring performance in terms of these benchmarks. The first…

Colorado Commission on Higher Education, Denver.

469

Securing SCADA systems  

Microsoft Academic Search

Purpose – Supervisory control and data acquisition (SCADA) systems are widely used by utility companies during the production and distribution of oil, gas, chemicals, electric power, and water to control and monitor these operations. A cyber attack on a SCADA system cannot only result in a major financial disaster but also in devastating damage to public safety and health. The

Sandip C. Patel; Pritimoy Sanyal

2008-01-01

470

Artificial Immune Systems  

Microsoft Academic Search

The human immune system has numerous properties that make it ripe for exploitation in the computational domain, such as robustness and fault toler- ance, and many different algorithms, collectively termed Artificial Immune Systems (AIS), have been inspired by it. Two generations of AIS are currently in use, with the first generation relying on simplified immune models and the second genera-

Uwe Aickelin; Dipankar Dasgupta

2009-01-01

471

Waste heating recovery system  

Microsoft Academic Search

An apparatus is described for recovering waste heat from a refrigeration system having a compressor, condensor and evaporator coupled together for circulating a refrigerant comprising: heat exchanger means adapted to be connected to the system between the compressor and condensor and having an inlet for receiving the refrigerant from the compressor and an outlet for supplying the refrigerant to the

E. M. Richardson; T. P. Sim

1987-01-01

472

Building Automation Systems.  

ERIC Educational Resources Information Center

A number of different automation systems for use in monitoring and controlling building equipment are described in this brochure. The system functions include--(1) collection of information, (2) processing and display of data at a central panel, and (3) taking corrective action by sounding alarms, making adjustments, or automatically starting and…

Honeywell, Inc., Minneapolis, Minn.

473

Custom uniform source system  

NASA Technical Reports Server (NTRS)

The purpose and scope of this final report is to provide information on the Custom Uniform Source System (CSTM-USS-4000). The report includes documentation and summaries of the results for the work performed under the contract. The Annex contain laboratory test findings, photographs, and drawings of the sphere system.

Balcom, John L.

1994-01-01

474

Student Grade History System.  

ERIC Educational Resources Information Center

This document describes the computerized procedures developed and utilized by Montgomery College (Maryland) to maintain records related to student academic progress. The new system was fully operable by fall 1972. Systems development included: (1) the conversion of past student records to a permanent grade history file; (2) the development of a…

White, Stephen R.

475

Redundant Asynchronous Microprocessor System  

NASA Technical Reports Server (NTRS)

Fault-tolerant computer structure called RAMPS (for redundant asynchronous microprocessor system) has simplicity of static redundancy but offers intermittent-fault handling ability of complex, dynamically redundant systems. New structure useful wherever several microprocessors are employed for control - in aircraft, industrial processes, robotics, and automatic machining, for example.

Meyer, G.; Johnston, J. O.; Dunn, W. R.

1985-01-01

476

Bird Song System  

NSDL National Science Digital Library

Image library of songbird nuclei allowing comparisons examining sex differences and effects of various doses of estrogen given to females in posthatch development. Bird Song System is an instructional tool for teaching neurophysiology that requires only a computer. Bird Song System is available for free, along with student and instructor tutorials.

Grisham, William

477

The Google file system  

Microsoft Academic Search

We have designed and implemented the Google File Sys- tem, a scalable distributed file system for large distributed data-intensive applications. It provides fault tolerance while running on inexpensive commodity hardware, and it delivers high aggregate performance to a large number of clients. While sharing many of the same goals as previous dis- tributed file systems, our design has been driven

Sanjay Ghemawat; Howard Gobioff; Shun-Tak Leung

2003-01-01

478

Digital capacitance measuring system  

NASA Technical Reports Server (NTRS)

The hardware phase of a digital capacitance measuring system is presented with the major emphasis placed on the electrical design and operation. Test results are included of the three units fabricated. The system's interface is applicable to existing requirements for the space shuttle vehicle.

1973-01-01

479

Fuels from Recycling Systems  

ERIC Educational Resources Information Center

Three systems, operating at sufficient scale, produce fuels that may be alternatives to oil and gas. These three recycling systems are: Black Clawson Fiberclaim, Franklin, Ohio; Union Carbide, South Charleston, West Virginia; and Union Electric, St. Louis, Missouri. These produce a wet fuel, a pyrolytic gas, and a dry fuel, respectively. (BT)

Tillman, David A.

1975-01-01

480

Bus annunciator system  

Microsoft Academic Search

As a means of saving energy while minimizing the need for passenger cars, vans, and trucks in the Oak Ridge Y-12 Plant, buses are provided which operate along approximately 6 miles of in-plant roads. A bus annunciator system was developed, fabricated, and installed which reduces the waiting time to near zero. The system consists of three separate devices: (1) an

D. W. Carver; M. G. Duncan

1981-01-01

481

Grinding Wheel System  

DOEpatents

A grinding wheel system includes a grinding wheel with at least one embedded sensor. The system also includes an adapter disk containing electronics that process signals produced by each embedded sensor and that transmits sensor information to a data processing platform for further processing of the transmitted information.

Malkin, Stephen (Amherst, MA); Gao, Robert (Amherst, MA); Guo, Changsheng (South Windsor, CT); Varghese, Biju (Worthington, OH); Pathare, Sumukh (Waltham, MA)

2003-08-05

482

Grinding Wheel System  

DOEpatents

A grinding wheel system includes a grinding wheel with at least one embedded sensor. The system also includes an adapter disk containing electronics that process signals produced by each embedded sensor and that transmits sensor information to a data processing platform for further processing of the transmitted information.

Malkin, Stephen (Amherst, MA); Gao, Robert (Amherst, MA); Guo, Changsheng (South Windsor, CT); Varghese, Biju (Worthington, OH); Pathare, Sumukh (Waltham, MA)

2006-01-10

483

Intermittent Control Systems  

ERIC Educational Resources Information Center

The technique of intermittent control systems for air quality control as developed and used by the Tennessee Valley Authority is investigated. Although controversial, all Tennessee Valley Authority sulfur dioxide elimination programs are scheduled to be operational this year. Existing or anticipated intermittent control systems are identified. (BT)

Montgomery, Thomas L.; And Others

1975-01-01

484

Local positioning system  

SciTech Connect

Navigation systems have been vital to transportation ever since man took to the air and sea. Early navigation systems utilized the sextant to navigate by starlight as well as the magnetic needle compass. As electronics and communication technologies improved, inertial navigation systems were developed for use in ships and missile delivery. These systems consisted of electronic compasses, gyro-compasses, accelerometers, and various other sensors. Recently, systems such as LORAN and the Global Positioning System (GPS) have utilized the properties of radio wave propagation to triangulate position. The Local Positioning System (LPS), described in this paper, is an implementation of a limited inertial navigation system designed to be used on a bicycle. LPS displays a cyclist`s current position relative to a starting location. This information is displayed in Cartesian-like coordinates. To accomplish this, LPS relies upon two sensors, an electronic compass sensor and a distance sensor. The compass sensor provides directional information while the distance sensor provides the distance traveled. This information yields a distance vector for each point in time which when summed produces the cyclist`s current position. LPS is microprocessor controlled and is designed for a range of less than 90 miles.

Kyker, R.

1995-07-25

485

Prediction and Social Systems  

E-print Network

.g. internet, google, 9/11 #12;Measuring Happiness Prediction and Social Systems Black Swans Economics/68 Social Systems: Black Swan Events http://amazon.com unpredictable carries massive impact after the fact carries massive impact after the fact, we concoct an explanation making it appear less random e

Danforth, Chris

486

Stereoscopic television system  

NASA Technical Reports Server (NTRS)

In this system, both left and right optical images pass through same set of optical lenses and same TV transmission and receiving systems. Transmitted stereo images are of high quality because differences in image tone and gray scales, disparities in relative focusing and magnification, and nonsimilar distortions produced by electrical and optical imperfections are minimized.

Jones, J. L.

1973-01-01

487

Television multiplexing system  

NASA Technical Reports Server (NTRS)

System with single, standard, wideband line transmits ten or more real time TV video data displays over hard wire to recorders more than 22.5 km from source. Digital logic and integrated circuits ensure high reliability and low maintenance. System is adaptable for video sampling applications.

Simpkins, L. G.

1971-01-01

488

The Universal Access System.  

ERIC Educational Resources Information Center

This final report discusses the outcomes of a project that created a Universal Access System (UAS), a system that gives students with disabilities access to the same computers as their classmates. The project developed a new approach in which the needs of the individual with disabilities are handled separately from the computers and other devices…

Scott, Neil G.

489

BATSE spectroscopy analysis system  

NASA Technical Reports Server (NTRS)

The Burst and Transient Source Experiment (BATSE) Spectroscopy Analysis System (BSAS) is the software system which is the primary tool for the analysis of spectral data from BATSE. As such, Guest Investigators and the community as a whole need to know its basic properties and characteristics. Described here are the characteristics of the BATSE spectroscopy detectors and the BSAS.

Schaefer, Bradley E.; Bansal, Sandhia; Basu, Anju; Brisco, Phil; Cline, Thomas L.; Friend, Elliott; Laubenthal, Nancy; Panduranga, E. S.; Parkar, Nuru; Rust, Brad

1992-01-01

490

Computer controlled antenna system  

NASA Technical Reports Server (NTRS)

The application of small computers using digital techniques for operating the servo and control system of large antennas is discussed. The advantages of the system are described. The techniques were evaluated with a forty foot antenna and the Sigma V computer. Programs have been completed which drive the antenna directly without the need for a servo amplifier, antenna position programmer or a scan generator.

Raumann, N. A.

1972-01-01

491

Exhaust gas recirculating system  

Microsoft Academic Search

An internal combustion engine equipped with an exhaust gas recirculating system is described. The exhaust gas recirculating system comprises an EGR valve normally closing an EGR duct to prevent recirculation and movable by a signal vacuum applied thereto to an open position and control means operable to provide a signal vacuum. The control means includes a vacuum line connecting a

Harada

1978-01-01

492

Purge water management system  

DOEpatents

A purge water management system is described for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under the Resource Conservation and Recovery Act is eliminated.

Cardoso-Neto, J.E.; Williams, D.W.

1995-01-01

493

WASTEWATER SYSTEMS Henrik Bechmann  

E-print Network

MODELLING OF WASTEWATER SYSTEMS Henrik Bechmann Lyngby 1999 ATV Erhvervsforskerprojekt EF 623 IMM, N. K. (1998). Control of sewer systems and wastewater treatment plants using pollutant concentration., and Nielsen, M. K. (1999). Grey box modelling of first flush and incoming wastewater at a wastewater treatment

494

WASTEWATER SYSTEMS Henrik Bechmann  

E-print Network

MODELLING OF WASTEWATER SYSTEMS Henrik Bechmann Lyngby 1999 ATV Erhvervsforskerprojekt EF 623 IMM., and Poulsen, N. K. (1998). Control of sewer systems and wastewater treatment plants using pollutant, N. K., and Nielsen, M. K. (1999). Grey box modelling of first flush and incoming wastewater

495

Evaluating intensified camera systems  

SciTech Connect

This paper describes image evaluation techniques used to standardize camera system characterizations. The authors group is involved with building and fielding several types of camera systems. Camera types include gated intensified cameras, multi-frame cameras, and streak cameras. Applications range from X-ray radiography to visible and infrared imaging. Key areas of performance include sensitivity, noise, and resolution. This team has developed an analysis tool, in the form of image processing software, to aid an experimenter in measuring a set of performance metrics for their camera system. These performance parameters are used to identify a camera system's capabilities and limitations while establishing a means for camera system comparisons. The analysis tool is used to evaluate digital images normally recorded with CCD cameras. Electro-optical components provide fast shuttering and/or optical gain to camera systems. Camera systems incorporate a variety of electro-optical components such as microchannel plate (MCP) or proximity focused diode (PFD) image intensifiers; electro-static image tubes; or electron-bombarded (EB) CCDs. It is often valuable to evaluate the performance of an intensified camera in order to determine if a particular system meets experimental requirements.

S. A. Baker

2000-06-30

496

Blowdown heat recovery systems  

Microsoft Academic Search

Proper installation and use of simple, inexpensive blowdown heat recovery systems can save more than 80 percent of the energy contained in hot water that is often discharged into the sewer. Many plants use blowdown heat recovery systems to increase boiler efficiency; however, there are some operating difficulties associated with the equipment installation. This article discusses blowdown calculations, how to

1984-01-01

497

The File Manager System  

PubMed Central

A database system written in Standard MUMPS has been implemented at a dozen Veterans Administration sites. While originally designed as a tool for programmers, the package can also be run as a standalone “programmerless” system. Through terminal dialogues, non-technical users can create, edit and store database schemas, and input and output “programs”.

Timson, George

1980-01-01

498

Remote Shopping Robot System  

Microsoft Academic Search

Abstract— The purpose of this research is to develop a robot system which helps humans to remotely accomplish a daily given task such as shopping. This teleoperated system is based on simple mutual human-robot cooperation where the person remotely communicates with the mobile robot. We define the specific task of buying FRESH foods in a supermarket from a remote location.

Tetsuo Tomizawa; Akihisa Ohya; Shin'ichi Yuta

499

An Educational Planning System.  

ERIC Educational Resources Information Center

A description of the two major outcomes of Trenton's Title III project, "Building a Comprehensive Planning Capability Using EPPBS", is given. The author first briefly reviews the planning system which resulted from the project, entitled the System for Trenton's Educational Planning (STEP). Following this, a detailed overview of the other end…

Weischadle, David E.

500

Strongly correlated electron systems  

Microsoft Academic Search

This special section is dedicated to the Strongly Correlated Electron Systems Conference (SCES) 2011, which was held from 29 August–3 September 2011, in Cambridge, UK. SCES'2011 is dedicated to 100 years of superconductivity and covers a range of topics in the area of strongly correlated systems. The correlated electronic and magnetic materials featured include f-electron based heavy fermion intermetallics and

Siddharth S Saxena; P B Littlewood

2012-01-01