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1

Jukutatsu machine system no chosa kenkyu. Honpen. (Research on the proficient machine system. Main part).  

National Technical Information Service (NTIS)

Because the succession of techniques requiring proficient technologies is becoming difficult year by year, the proficient machine system was proposed. Most of such techniques are dependent on intuition or experience difficult to express numerically, and a...

1996-01-01

2

Geology, geochemistry, and U Pb geochronology of the Archean (2.74 Ga) Serra do Rabo granite stocks, Carajás Metallogenetic Province, northern Brazil  

NASA Astrophysics Data System (ADS)

The Carajás region, located in the southeastern part of the Amazon Craton, has been considered one of the most important mineral provinces in the world. The Serra do Rabo Granite (SRG) crops out near the eastern termination of the Carajás fault as two granite stocks, elongated approximately in an E W direction, concordant with the regional structures. Leucomicrocline granite, hornblende microcline granite, biotite hornblende microcline granite, hornblende syenogranite, and subordinate aplite are identified. The granites are grayish pink and coarse to medium grained and have mainly hypidiomorphic granular texture. Granophyric textures are common. The accessory minerals are ilmenite, apatite, zircon, allanite, and rare pyroxene. The SRG rocks are either massive or foliated, with a slightly anastomosed continuous S1 foliation (E W/subvertical) outlined by the preferred orientation of quartz, feldspars, and mafic minerals. Locally, decimeter- to meter-wide mylonite/ultramylonite bands (S1m) occur along the E W foliation. The S1 foliation was developed under higher temperatures than those of the S1m mylonite foliation. The SRG structural evolution was controlled by progressive deformation under decreasing temperature, indicative of syntectonic emplacement. The SRG also has relatively high SiO2, K2O, and Na2O contents; high FeO*/(FeO*+MgO) ratios; high Zr, Ba, Nb, and Ga; and very high rare-earth element contents. The chemical signature is moderately alkaline and metaluminous, comparable to that of the A-type, A2, and ALK-3 granites. The origin of the SRG magmas may be related to the partial melting of crustal sources, such as previously metamorphosed calc-alkaline granites. The SRG crosscuts supracrustal rocks, promoting low-pressure/high-temperature metamorphism. The interaction between regional compressive stresses and the ballooning effect of the granite stocks promoted slight aureole flattening and rheological changes in the supracrustal rocks. The U Pb zircon age of 2743±1.6 Ma is interpreted as the age of zircon crystallization, granite stock emplacement, and regional horizontal shortening. Other 2.7 Ga syntectonic alkaline granites (e.g. Estrela, Plaquê, Planalto) have been reported in the region.

Sardinha, Alex Souza; Barros, Carlos Eduardo De Mesquita; Krymsky, Robert

2006-03-01

3

1994 nendo kankyo hozengata energy system no tame no kagaku process no chosa kenkyu hokokusho. Shizen sado baitai no chosa kenkyu. (Report on the fiscal 1994 investigational research on the chemical process for the environmental preservation type energy system. Investigational research on natural working mediums).  

National Technical Information Service (NTIS)

An investigation into natural working mediums which can be considered part of the natural environment was conducted as a chemical process for the construction of the environmental preservation type energy system. Studies are made of environmental preserva...

1995-01-01

4

Iryo fukushi kiki gijutsu kenkyu kaihatsu 1994 nendo seika hokokusho. Shogaisha taio multimedia system. (Report on fiscal 1994 results of the research and development of medical welfare equipment technology. Multi-media system corresponding to the handicapped).  

National Technical Information Service (NTIS)

The paper reported the results of the development of a multi-media system corresponding to the handicapped. This system supplies, on the screen, conversion means in real time among visual, auditory and tactile information on a system level, and possesses ...

1995-01-01

5

Chikyu kankyo taisaku gijutsu toshite no global energy system no hyoka ni kansuru chosa kenkyu. (Investigational study of evaluation of the global energy system as a global environmental protection technology).  

National Technical Information Service (NTIS)

With relation to some global energy systems of which viability is predicted in the future, an evaluation was conducted from the viewpoints of economical efficiency, energy balance, CO2 emission, etc. The fossil fuel CO2 capture system, the conventional th...

1997-01-01

6

Seitetsu kenkyu, number 311, September 1983  

SciTech Connect

This special issue on steel for Intermediate-and High-Temperature Service contains research reports on Trends in High Temperature System and Their Material Requirement; Deterioration of Mechanical Properties of Low Alloy Steels during Service at Elevated Temperature; Heavy Stainless Steel Plate for Fast Breeder Reactors; Application of Stainless Steels to High-Temperature Service; Development of High Steel Plates for Intermediate and Room Temperature Pressure Vessel Service; Electric Resistance Welding Rifled Boiler Tube; Development of High Strength Ferritic Stainless Steel Boiler Tube; System for Processing Creep Data, as well as the following general reports: System for Predicting Sintering Operation; Continuous Casting of Pseudo-Rimmed Steel Using In-Mold Electromagnetic Stirrer; Computer Simulation for Continuous Caster Engineering Analysis and Simulation and PERT Models for Man-Machine Operation Study.

Not Available

1983-09-01

7

Iryo fukushi kiki gijutsu kenkyu kaihatsu 1994 nendo seika hokokusho. 6. Nyoshikkin boshi kunren sochi. (Result of R and D of medical welfare equipment technology in fiscal 1994. Part 6. Therapeutic training system for preventing incontinence of urine).  

National Technical Information Service (NTIS)

A portable system was developed so as to prevent the urinary incontinence and enable the aged persons and patients to live their comfortable life. In the measurement of urinary volume, its correlativity with the change in impedance was confirmed with a sm...

1995-01-01

8

Kosoku methane hakko to kofuka nenshoro nado no fukugo ni yoru kanen gomi no kokoritsu shigen kaisyu . energy tenkan system no chosa kenkyu. (Investigation and research on a highly efficient resource recovery and energy conversion system of combustible wastes by the complex of high speed methane fermentation and high load combustion furnaces).  

National Technical Information Service (NTIS)

To develop a new system in the field of waste treatment in order to fulfill the demand of the age, this investigation and research was conducted. High speed methane fermentation treatment system which was developed and put to practical use successfully in...

1989-01-01

9

1995 nendo shigen recycle gata shoshigengata no saigai ni tsuyoi life line no shuyaku seibi system no chosa kenkyu hokokusho. (Report on an investigational research on intensive arrangement of the resource recycling type/energy conservation type lifeline system which survives disaster).  

National Technical Information Service (NTIS)

With relation to the necessity of reducing waste construction materials and reutilizing as resource, the paper studied the issue on earthquake waste, in particular. Facilities of electric power/gas, water supply and sewerage system, roads, railroads, info...

1996-01-01

10

NSF Tokyo Reports. Report Memorandum No. 217.  

National Technical Information Service (NTIS)

Since 1988 the Japanese Prime Minister's Council for Science and Technology has annually granted three-year research grants under the International Core System for Basic Research (Kokusai Ryudo Kiso Kenkyu). Under the program (which is also known as the S...

C. W. Wallace M. Miyahara

1991-01-01

11

Seitetsu Kenkyu, No. 339, October 1990. (Special Issue on Instrument and Control Engineering).  

National Technical Information Service (NTIS)

Contents: Optimum Operation Systems by Expert System for Coke Plants and Raw Material Yards; On-line MeMeasurement of Particle Size by Microwave Technology; Development of Touchless Operation Technique for the Manipulation of Equipment -For Manpower Ratio...

1990-01-01

12

Biomass genryo no yuka hanno tokusei ni kansuru kisoteki kenkyu. (Study on thermochemical liquefaction of biomass feedstocks).  

National Technical Information Service (NTIS)

Liquefaction is applied to various biomass wastes and unused biomass to study characteristics of the liquefaction in each case. The paper described the system of the conversion and use of biomass into energy, conducted the positioning of the liquefaction,...

1997-01-01

13

Seitetsu Kenkyu, No. 325, 1987.  

National Technical Information Service (NTIS)

Special issue on ironmaking. Future prospect of ironmaking technology; Operation results of Kimitsu no. 4 blast furnace (1st campaign) - Pursuit of economy of blast furnace; Progress of blast furnace plant technology; Blast furnace burden distribution con...

1987-01-01

14

Seitetsu Kenkyu, No. 324, 1987.  

National Technical Information Service (NTIS)

(Special Issue on the Mold Powder Technology in Continuous Casting of Steel) Mold flux technology for low carbon al-killed steel in continuous casting; Powder technology of continuous casting for Ti stabilized stainless steel; Model analysis of melting pr...

1987-01-01

15

The Role of Community Studies in the Makiguchian Pedagogy  

ERIC Educational Resources Information Center

|This article focuses on two of the earlier works in the Makiguchi corpus, "Kyoju no togo chushin toshiteno kyodoka kenkyu" ("Research into Community Studies as the Integrating Focus of Instruction," 1912/1987; hereafter "Community Studies"), and "Chiri kyoju no hoho oyobi naiyo no kenkyu" ("Research into the Methods and Content of Geography…

Gebert, Andrew

2009-01-01

16

1992 nendo Nihon Taiyo Energy Gakkai Nihon Furyoku Energy Kyokai godo kenkyu happyokai koen ronbunshu. (1992 JSES/JWEA Joint Conference).  

National Technical Information Service (NTIS)

The proceedings of the conference include the results of research and development of the photovoltaic power generation system, the wind power generation and biomass. As for the photovoltaic power generation system, reports are made on the following: power...

1992-01-01

17

Suiso riyo kokusai clean energy system gijutsu (WE-NET). subtask 9. Kakushinteki sendoteki gijutsu ni kansuru chosa kenkyu. (Worldwide clean energy system technology using hydrogen (WE-NET). subtask 9. Investigation of innovative and leading technologies).  

National Technical Information Service (NTIS)

The WE-NET Project is a long-term project designed to ensure that an energy network technology using hydrogen becomes a reality not later than 2020. So the project cannot remain effective unless constant efforts are made to foresee future trends of techno...

1997-01-01

18

1993 nendo shizen energy ni yoru chiiki okoshi no tame no engineering kenkyu. (Fiscal 1993 investigational research report on the trend of waste treatment and recycle in Europe).  

National Technical Information Service (NTIS)

The paper investigated the trend of waste treatment and recycle in EC countries. The waste problem is a problem not only of the technology, but of the social system. It is an important aspect that general citizens can join recycling activities independent...

1994-01-01

19

Seitetsu Kenkyu No 333, April 1989.  

National Technical Information Service (NTIS)

Table of Contents: Method for Evaluation of Hot Workability of High-Alloyed Stainless Steels and Guidance for Improvement; Development of New Pickling Process for Stainless Steel Sheets (BT-P Process); Development of Surface Modification Technology for St...

1989-01-01

20

Seitetsu Kenkyu, No. 314, July 1984.  

National Technical Information Service (NTIS)

Contents: Earthquake-Ductility Analysis for Offshore Structures; Steel Plates for Offshore Structures in the North Sea; Steel Plates for Ships and Offshore Structures in Ice Covered Waters; Study on Improvements in the Toughness of Heavy Welds for Critica...

1984-01-01

21

Seitetsu Kenkyu No 329, April 1988.  

National Technical Information Service (NTIS)

Table of Contents: Properties of Slow-Cooled Wire Rods; Development of In-Line Heat Treatment for High-Strength DHH (Deep Head Hardened) Rails; Technology for Production of Hot-Rolled 70-80kgf/mm2 Class Steel Sheets and Their Mechanical Properties; Perfor...

1988-01-01

23

Systeme multifonctions. (Multifunction system).  

National Technical Information Service (NTIS)

The development, the characteristics and the applications of a multifunction system are presented. The system is used on the RBES laboratory pipes, at Marcoule. The system was developed in order to allow, without time loss, the modification of the circuit...

J. Wauthier R. Fiori

1990-01-01

24

Kazangaku no kiso kenkyu. (Basic studies of volcanology).  

National Technical Information Service (NTIS)

This report is the record of the symposium which was held for summarization of the present state and trend of fundamental studies of volcanology. Discussions have been carried out in five working groups set up for summarization, physical volcanology, chem...

1990-01-01

25

Apataitokei kagobutsu ni kansuru kenkyu. (Study on apatite compounds).  

National Technical Information Service (NTIS)

To clarify the material properties of apatite compounds, the synthesis method, and the evaluation of physical properties of material and elementary technology were investigated. For the study on synthesis and crystal growth, a method of precipitating calc...

1996-01-01

26

Immune System  

MedlinePLUS

... could put us out of commission. What the Immune System Does The immune (pronounced: ih- myoon ) system, which ... Continue Things That Can Go Wrong With the Immune System Disorders of the immune system can be broken ...

27

A Note on the Ancient Towns and Cities of Northeastern Thailand  

Microsoft Academic Search

In a recent article published in Tonan Ajia Kenkyu, Professors Thi va Supajanya and Srisakra Vallibhotama have put forth a well-argued plea that the antiquities of the northeastern region of Thailand be given attention beyond that which they have attracted from art historians (Thiva Supajanya and Srisakra Vallibhotama, 1972). Recent researches by prehistorians have established a sequence of independent develop­

Charles F. KEYES

28

A Teacher Educator's Role in an Asia-derived Learning Study  

Microsoft Academic Search

To what extent and in what ways should a teacher educator contribute to a type of teaching development that has long functioned successfully without much involvement of teacher educators? This self-study concerns my learning about my role as teacher educator in a learning study, a Hong Kong adaptation of a teacher-driven Japanese educational and cultural practice, Jugyou Kenkyu, credited with

Elizabeth Walker

2007-01-01

29

Dynamical System  

Microsoft Academic Search

SUMMARY This paper addresses the parameter estimation problem of an interval-based hybrid dynamical system (interval system). The interval system has a two-layer architecture that comprises a finite state automaton and multiple linear dynam- ical systems. The automaton controls the activation timing of the dynamical systems based on a stochastic transition model between intervals. Thus, the interval system can generate and

Takashi MATSUYAMA

30

Aerospace Systems  

NSDL National Science Digital Library

This pdf contains a syllabus for a course on aerospace systems as part of the Aerospace Technology Program. This course covers an introduction to expendable and reusable Space Launch Vehicle (SLV) systems including hydraulic, pneumatic, electrical, propulsion, mechanical, HVAC (heating, ventilation and air conditioning), and ECLSS (Environmental Control and Life Support Systems). How systems interact with computer and data acquisition systems is also covered.

2011-08-11

31

Aesthetics Systems.  

National Technical Information Service (NTIS)

The formal structure of aesthetics systems is defined. Aesthetics systems provide for the essential tasks of interpretation and evaluation is aesthetic analysis. Kolmogorov's formulation of information theory is applicable. An aesthetics system for a clas...

J. Gips G. Stiny

1973-01-01

32

Rebreathing System.  

National Technical Information Service (NTIS)

The patent application is a constant volume rebreathing system when utilized in conjunction with an external air source, such as man. The rebreathing system forms a completely closed system between man and the environment. There is a stainless steel bello...

J. P. Conkle

1974-01-01

33

Systems Studies.  

National Technical Information Service (NTIS)

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...

R. L. Graham

1998-01-01

34

Ensuring Dependable Systems of Systems  

Microsoft Academic Search

The emerging class of systems known as Systems of Systems (SoS) are composed of many distributed, heterogeneous and autonomous components. Such systems are typically separately designed and manufactured and evolve throughout their lifetime. However, they are expected to work together, often in safety-critical areas of operation such as civil transportation, military operations and space exploration. As such, the systems are

Robert Alexander; Martin Hall-May; Tim Kelly

35

Systems thinking or systems engineering  

Microsoft Academic Search

The problem faced by most systems organisations is how to develop and sustain staff with the appropriate systems skills and experience. To date, much has been made of the delineation of systems thinking and systems engineering. In this research, the partitioning of \\

Kate M. Gill

2009-01-01

36

Solar System  

NSDL National Science Digital Library

At the end of this project, you will be able to explain the components of the Solar System and know the order of the planets starting from the Sun. Objective Question: What is the Solar System? First, listen and read about the Solar System 1. How many planets make up our Solar System? 2. What is at the center of the Solar System? Next,listen and read about the Planets. 1. Can you name all of the planets? Finally, listen and watch The Solar System Movie. 1. Can you list the ...

Ms.west

2009-07-07

37

Stimulator system  

SciTech Connect

An electrical stimulator system is described incorporating rechargeable batteries and a charging circuit. A charging set and electrode support are alternatively connected to the stimulator system via a single common two-pole terminal. The system is designed to prevent current from flowing directly from the battery to the electrode support along the charging circuit while allowing charge current to flow in the opposite direction along the charging circuit if the charging set is connected to the system instead of the electrode support.

Hakansson, B.H.; Saario, R.A.

1984-02-14

38

Energy Systems  

NSDL National Science Digital Library

Posters are provided for several different energy conversion systems. Students are provided with cards that give the name and a description of each of the components in an energy system. They match these with the figures on the diagram. Since the groups look at different systems, they also describe their results to the class to share their knowledge.

Office Of Educational Partnerships

39

Systems Liaisons  

Microsoft Academic Search

As computer technology increases its role within academic libraries, one of the problems faced by systems librarians is maintaining the equipment and training needed for the technology without overworking the library's systems staff. This article describes the development of a group of systems liaisons within an academic library to serve as front line managers for computer hardware, software, and simpler

Pam Burton; Margaret Foote

2000-01-01

40

Solar System  

NSDL National Science Digital Library

An introduction to to the solar system. How to distinguish between the different planets. Activities to play while getting to know the solar system. Cosmic Cookies Solar System Scavenger Hunt Edible Earth Strawkets and Control Strawkets and Thrust Strawkets and Weight ...

Wright, Ms.

2009-10-09

41

Systems biotechnology.  

PubMed

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. PMID:20180277

Lee, Sang Yup

2009-10-01

42

Micropower system  

SciTech Connect

A micropower DC/DC conversion system is disclosed providing a stabilized voltage output at a predetermined voltage higher than that of the energy source. The system is powered by one or more primary cells in parallel or by a suitable battery, and the system is of special use with systems requiring low power at stabilized voltage which is substantially independent of the energy source impedance and load variations. According to the preferred embodiment of the system the output voltage stabilization is controlled by voltage detection circuit based on C-MOS inverters which allows extremely low power drain. The system is of special value for use with electronic implantable devices such as cardiac pacemakers.

Krupka, Y.; Bachar, A.; Yerushalmi, S.

1983-11-01

43

Autogeneric system  

US Patent & Trademark Office Database

The invention of the "autogeneric system" in the form of <> is a closed recursive manufacturing cycle. Present technology is probably sufficient to build fifth generation computing systems, but the actual construction of inductive and deductive logic machines awaits the discovery of real methods. The working model <> operates by the relentless application of directed trial and error. The operation of <> has been directed to produce "better" versions of <>. The copyrighted version of <> can be used to manufacture microcomputer systems, and process control systems. The value of "autogeneric systems" rests in the inherent ability to create or manufacture complex systems on demand. The ability to incorporate expert knowledge into reusable modules allows a multiplication of the efforts of experts. The error detection allows real telecommunications networks to be used to create a distributed computer.

Davis; Dannie E. (Elmore, AL)

1988-03-29

44

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

45

Serials Systems  

Microsoft Academic Search

The criteria for selecting a serials management system are often the same as those for selecting an integrated library system in toto. In the post-selection\\/production environment, the library–vendor relationship matures as a new operational framework is established. Serials management systems must become more efficient and make better use of electronic commerce, especially as a greater emphasis is placed on access

Pamela Bluh; Marc Truitt; Bob Boissy

2002-01-01

46

CALUTRON SYSTEM  

DOEpatents

A calutron system capable of functioning with only a portion of the separation tanks in the system operating is described. The invention is a calutron system comprssing a closed series of alternated tanks and electromagnets having a mid-yoke connecting intermediate positions of the series. dividing the series into twv-o portions, and thereby providing a closed magnetic path through either of the portions.

Lawrence, E.O.

1958-08-12

47

Systemic Darwinism  

PubMed Central

Darwin's 19th century evolutionary theory of descent with modification through natural selection opened up a multidimensional and integrative conceptual space for biology. We explore three dimensions of this space: explanatory pattern, levels of selection, and degree of difference among units of the same type. Each dimension is defined by a respective pair of poles: law and narrative explanation, organismic and hierarchical selection, and variational and essentialist thinking. As a consequence of conceptual debates in the 20th century biological sciences, the poles of each pair came to be seen as mutually exclusive opposites. A significant amount of 21st century research focuses on systems (e.g., genomic, cellular, organismic, and ecological/global). Systemic Darwinism is emerging in this context. It follows a “compositional paradigm” according to which complex systems and their hierarchical networks of parts are the focus of biological investigation. Through the investigation of systems, Systemic Darwinism promises to reintegrate each dimension of Darwin's original logical space. Moreover, this ideally and potentially unified theory of biological ontology coordinates and integrates a plurality of mathematical biological theories (e.g., self-organization/structure, cladistics/history, and evolutionary genetics/function). Integrative Systemic Darwinism requires communal articulation from a plurality of perspectives. Although it is more general than these, it draws on previous advances in Systems Theory, Systems Biology, and Hierarchy Theory. Systemic Darwinism would greatly further bioengineering research and would provide a significantly deeper and more critical understanding of biological reality.

Winther, Rasmus Gr?nfeldt

2008-01-01

48

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

49

Systems Thinking  

NSDL National Science Digital Library

This video from SpaceTEC National Aerospace Technical Education Center explains the General Systems Model and how consider the entire system when performing aerospace work. This three and a half minute video is one of the aerospace certification readiness courses.

2011-07-27

50

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

51

Propulsion System.  

National Technical Information Service (NTIS)

The closed cycle propulsion system for a torpedo uses aluminum as a source of hydrogen. The system includes a fuel generator, a store of oxidizer, a combustion chamber, a steam-driven prime mover, a condenser and three displacement pumps driven by a commo...

N. Fatica

1966-01-01

52

Heating system  

Microsoft Academic Search

A method for recovering waste heat from heating system exhaust gas is described. In a heating system located in a furnace room and including a furnace and an air blower for delivering air to the furnace via an inlet stack and heating pipes for the delivery of heated air from the furnace to the areas to be heated, the improvement

Anable

1975-01-01

53

Decimal system  

NSDL National Science Digital Library

Early scientific efforts by the Chinese yielded the decimal system. The Chinese were mostly known for their physical inventions during this time, so it was unusual to see something like the decimal system come from China at this point in history.

N/A N/A (None;)

2007-10-24

54

Systems Librarianship  

NSDL National Science Digital Library

The SYSLIB-L list serves as a vehicle for the discussion of topics related to systems librarianship and for the collection of information related to systems librarianship. Postings may include, but are not limited to, job postings, technical questions, philosophical discussions, and education.

1997-01-01

55

Organ Systems  

NSDL National Science Digital Library

This "Organ Systems" module has five units of instruction that focus on the main classes of functions that a body must perform. Rather than just naming organs of the body and what they do, they present a perspective on the body as a coordinated group of systems that must do certain things correctly in order to survive and thrive.

Klemm, W. R.

2001-01-01

56

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

57

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

58

SAMPLING SYSTEM  

DOEpatents

An apparatus is given for the batch sampling of radioactive liquids such as slurries from a system by remote control, while providing shielding for protection of operating personnel from the harmful effects of radiation.

Hannaford, B.A.; Rosenberg, R.; Segaser, C.L.; Terry, C.L.

1961-01-17

59

Root systems  

NSDL National Science Digital Library

One purpose that roots serve is that of anchoring the plant in the ground. Roots also take up water and nutrients for the plant. Plants all have different root system types to fit their individual needs and locations.

N/A N/A (U.S. Government;)

2004-10-30

60

Digestive System  

MedlinePLUS

... remove inflamed or damaged areas of the intestine. Celiac disease is a disorder in which the digestive system ... from breakfast cereal to pizza crust. People with celiac disease have difficulty digesting the nutrients from their food ...

61

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

62

Embedded Systems  

NSDL National Science Digital Library

Embedded systems are dedicated computers designed to perform a specific task. They are usually fairly simple devices that are used in areas where powerful, customizable computers are unnecessary; however, they can also be quite complex on occasion. Embedded systems can be found almost anywhere, including automobiles and cellular phones, and their importance is reflected in their near omnipresence.An excellent introduction to embedded systems can be found in the first three pages of this online course material (1). The educational module gives a thorough definition of embedded systems, several examples of where they are used, and a discussion of their common components. For a more detailed explanation of how these devices are used to control various appliances, motors, and other real world products, this site (2) is worth a visit. Sixteen sections comprise the site, and each includes background information and an example experiment. Although certain equipment is required for the experiments, much can be learned simply from reading the introductions. This enlightening essay (3) documents the history and development of embedded systems. Despite being somewhat specific to the author's life, it effectively illustrates the evolution of embedded systems and their incorporation into many facets of everyday life. A paper presented at the 2003 International Cryptology Conference (4) considers the vulnerability of embedded cryptosystems to side channel attacks, which are different from normal security violations because they involve monitoring parts of the hardware system instead of the software. The authors propose the design of private circuits that are resistant to such attacks. The Center for Robotics and Embedded Systems at the University of Southern California is the source of this paper (5) about networked robots. Although it is somewhat dated, the paper provides some valuable insights into how robots can be used in human environments and how they can be controlled and coordinated with wireless communications. An article from Dedicated Systems Magazine (6) highlights the role of embedded systems in NASA's Mars Exploration Rovers, which were launched in June and July 2003. The technologies that enabled the rovers to have powerful, reliable operation are described. The April 2003 issue of ACM Queue (7), 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 and the hardware/software interface. Lastly, a short paper that was presented at a computer architecture symposium in January 2003 looks ahead to the realization of ubiquitous computing (8). This technology revolution, which has been predicted for many years, promises to make tiny computers embedded in virtually everything, even clothing and walls. The author focuses on the area of intelligent vehicles and wheeled mobile robots.

Leske, Cavin.

63

System Dynamics  

Microsoft Academic Search

\\u000a System dynamics is an approach for thinking about and simulating situations and organisations of all kinds and sizes by visualising\\u000a how the elements fit together, interact and change over time. This chapter, written by John Morecroft, describes modern system\\u000a dynamics which retains the fundamentals developed in the 1950s by Jay W. Forrester of the MIT Sloan School of Management.\\u000a It

John Morecroft

2010-01-01

64

Scoring systems  

Microsoft Academic Search

Severity of illness scoring systems are helpful for defining populations of critically ill patients because they facilitate,\\u000a for example, comparison of different groups of patients enrolled in clinical trials. Such scoring systems may also guide more\\u000a effective allocation of resources, such as nursing and ancillary care and help in assessing the quality of care in the intensive\\u000a care unit (ICU)

John Kress

65

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

66

System of Hungarian System Management.  

National Technical Information Service (NTIS)

The new disaster management direction and responsibility system and the professional disaster management organization were tested last year in practice. Perhaps liquidation of consequences of terrorist acts was the only threat, which it did not need to fa...

L. Kozari

2001-01-01

67

FDA Industry Systems - System Status  

Center for Food Safety and Applied Nutrition (CFSAN)

... November 14, 2009: ESG Pre-Production (Test) system was unavailable from 6:00pm November 13, 2009 EST to 11:59pm November 14, 2009 EST ... More results from www.fda.gov/food/guidanceregulation/foodfacilityregistration

68

Systemic fluoride.  

PubMed

There is substantial evidence that fluoride, through different applications and formulas, works to control caries development. The first observations of fluoride's effects on dental caries were linked to fluoride naturally present in the drinking water, and then from controlled water fluoridation programs. Other systemic methods to deliver fluoride were later suggested, including dietary fluoride supplements such as salt and milk. These systemic methods are now being questioned due to the fact that many studies have indicated that fluoride's action relies mainly on its post-eruptive effect from topical contact with the tooth structure. It is known that even the methods of delivering fluoride known as 'systemic' act mainly through a topical effect when they are in contact with the teeth. The effectiveness of water fluoridation in many geographic areas is lower than in previous eras due to the widespread use of other fluoride modalities. Nevertheless, this evidence should not be interpreted as an indication that systemic methods are no longer relevant ways to deliver fluoride on an individual basis or for collective health programs. Caution must be taken to avoid excess ingestion of fluoride when prescribing dietary fluoride supplements for children in order to minimize the risk of dental fluorosis, particularly if there are other relevant sources of fluoride intake - such as drinking water, salt or milk and/or dentifrice. Safe and effective doses of fluoride can be achieved when combining topical and systemic methods. PMID:21701196

Sampaio, Fábio Correia; Levy, Steven Marc

2011-06-23

69

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

70

System Overview  

NSDL National Science Digital Library

This is a description for a learning module from Maricopa Advanced Technology Education Center. This PDF describes the module; access may be purchased by visiting the MATEC website. Technicians face the challenge of building and maintaining knowledge and skills that are applicable to microcomputer architecture. These challenges include keeping up to date on improvements in PC components, changes in PC hardware configurations, integration of new devices within PC systems, and the ability to readily apply their knowledge within the microcomputer manufacturing industry. This module provides an introduction and overview to the major system features that define the architecture of an Intel-based PC. A unique multimedia self-tutorial is included.

2011-08-22

71

[Systemic scleroderma].  

PubMed

Systemic scleroderma is a chronic autoimmune disease affecting the skin, internal organs and the musculoskeletal system. The presence of Raynaud phenomenon, anti-nuclear antibodies and pathologic capillaroscopy are early signs of the disease. Limited cutaneous SSc, diffuse cutaneous SSc and SSc-overlap syndromes are the main clinical subtypes. Multidisciplinary care is mandatory. Follow-up examinations should be performed at least annually in order to recognize in a timely fashion treatable organ involvement such as pulmonary arterial hypertension. Besides symptomatic treatment of organ involvement, immunosuppressive therapy is indicated for a progressive inflammatory course. PMID:23576170

Hunzelmann, N

2013-04-01

72

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

73

Rabbit System.  

National Technical Information Service (NTIS)

A rabbit system for ultrafast transport of a sampler between a sampling point and an analysis position is described. The sampler is transported pneumatically in a carrier capsule first to a sampling point and then to a separating structure in front of the...

1978-01-01

74

Telemetry system  

SciTech Connect

A telemetry system is descried for transmitting data between a downhole location in a wellbore and the surface of a well. It utilizes an acoustic signal which operates within naturally occurring passbands on a string of pipe and has substantially fixed frequency ranges which are related to pipe length and condition.

Chaney, P.E.; Cox, W.H.

1981-10-06

75

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...

76

Windpower system  

Microsoft Academic Search

A windpower system includes a support and a turbine having a shaft rotatively mounted to the support. The turbine has variable pitch blades whose pitch is controlled by the differential motion of a rotary control shaft coaxial with the turbine shaft and the turbine shaft itself so that the blade pitch can be varied by a stationary motor without requiring

A. Chertok; J. Gjertsen Sr; L. Manfredi

1984-01-01

77

Nanoelectromechanical systems  

Microsoft Academic Search

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

Mp Blencowe

2005-01-01

78

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

79

Respiratory System  

MedlinePLUS

... Search Form Advanced Search Search the NHLBI, use radio buttons below to select whole site or Disease and Conditions Index only NHLBI Entire ... Information for the Public » Health Topics » How the Lungs Work » The Respiratory System How the Lungs Work Explore ...

80

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

81

Optoelectronic system  

Microsoft Academic Search

Necessity of devices and systems for identity verification and individualization of security holograms (SH) is growing together with the growth of SH production. The hidden coded micro image as a set of points (bits) was chosen as a new security element. This image is separately added into hologram by laser perforation on the final stage of SH production after replication.

Dmitry Sergeevich Lushnikov; Sergey Borisovich Odinokov; Alexander Yurievich Pavlov

2011-01-01

82

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

83

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

84

Gear system  

Microsoft Academic Search

This patent describes a gear system comprising a center gear; gears each having a center axis and each meshing with the center gear; main shafts each having an axis and a conical form and each rotatably carrying one of the gears directly through a bearing having a conical hole, a clearance being provided between an outer surface of each main

K. Shinjo; M. Go

1988-01-01

85

Multipositronic Systems  

SciTech Connect

The stability and structure of systems comprising a negative ion and positrons are investigated by the stochastic variational method. It is shown that the H{sup -} and the Li{sup -} ions can bind not only one but two positrons. The binding energies of these double positronic atoms, E(H{sup -} , e{sup +}, e{sup +})=0.57 eV , and E(Li{sup -} , e{sup +}, e{sup +})=0.15 eV are somewhat smaller than those of their single positronic counterparts [E(HPs)=1.06 eV and E(LiPs)=0.32 eV ]. We have also found that two Ps{sup -} 's can form a bound system with a proton. (c) 1999 The American Physical Society.

Varga, Kalman

1999-12-27

86

Multipositronic Systems  

NASA Astrophysics Data System (ADS)

The stability and structure of systems comprising a negative ion and positrons are investigated by the stochastic variational method. It is shown that the H- and the Li- ions can bind not only one but two positrons. The binding energies of these double positronic atoms, E\\(H-,e+,e+\\) = 0.57 eV, and E\\(Li-,e+,e+\\) = 0.15 eV are somewhat smaller than those of their single positronic counterparts [ E\\(HPs\\) = 1.06 eV and E\\(LiPs\\) = 0.32 eV]. We have also found that two Ps-'s can form a bound system with a proton.

Varga, Kálmán

1999-12-01

87

Surveying System  

NASA Astrophysics Data System (ADS)

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

88

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

89

Combustion systems  

SciTech Connect

This patent describes an external combustion engine such as a Stirling engine and the like, having an external heat system housing in which is defined a heater space, a hollow liner formed of a ceramic material disposed in the heater space and defining a combustion chamber. Biasing means are coupled to a first end of the liner and coupled with the housing so as to maintain the liner in the heater space while dampening transmission of vibration in the housing to the liner.

Kralick, J.

1986-03-04

90

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

91

Representational Systems  

Microsoft Academic Search

The concept of representation has been a key element in the scientific study of mental processes, ever since such studies\\u000a commenced. However, usage of the term has been all but too liberal—if one were to adhere to common use it remains unclear\\u000a if there are examples of physical systems which cannot be construed in terms of representation. The problem is

Tomer Fekete

2010-01-01

92

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

93

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

94

D0 Cryo System Control System Autodialer  

Microsoft Academic Search

The DO cryogenic system is controlled by a TI565-PLC based control system. This allows the system to be unmanned when in steady state operation. System experts will need to be contacted when system parameters exceed normal operating points and reach alarm setpoints. The labwide FIRUS system provides one alarm monitor and communication link. An autodialer provides a second and more

J. Urbin

1990-01-01

95

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

96

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

97

Solar System!  

NSDL National Science Digital Library

An introduction to our solar system: the planets, our Sun and our Moon. Students begin by learning the history and engineering of space travel. They make simple rockets to acquire a basic understanding Newton's third law of motion. They explore energy transfer concepts and use renewable solar energy for cooking. They see how engineers design tools, equipment and spacecraft to go where it is too far and too dangerous for humans. They explore the Earth's water cycle, and gravity as applied to orbiting bodies. They learn the steps of the design process as they create their own planetary rovers made of edible parts. Students conduct experiments to examine soil for signs of life, and explore orbit transfers. While studying about the International Space Station (ISS), they investigate the realities of living in space. Activities explore low gravity on human muscles, eating in microgravity, and satellite tracking. Finally, students learn about the context of our solar system, the universe, as they learn about the Hubble Space Telescope, celestial navigation and spectroscopy.

Integrated Teaching And Learning Program

98

Ignition system  

SciTech Connect

This patent describes an ignition system of an internal combustion engine which consists of: a permanent magnet supported by a rotary member of the engine adapted to rotate in synchronism with a rotary shaft of the engine; a generating coil for generating an electromotive force to produce an electric current as the permanent magnet acts on the generating coil during the rotation of the rotary member; an ignition capacitor charged by the electric current generated by the generating coil; a thyristor caused to turn on by a counter electromotive force generated by the generating coil to thereby cause the ignition capacitor to begin to discharge; and an ignition coil generating a high voltage as the ignition capacitor begins to discharge, to cause a spark discharge to take place in an ignition plug of the internal combustion engine.

Kondo, T.; Ohno, S.

1986-09-16

99

Transfer system  

SciTech Connect

A transport system includes a traveling rail (1) which constitutes a transport route and a transport body (3) which is capable of traveling on the traveling rail in the longitudinal direction of the traveling rail. Flexible drive tubes (5) are arranged on the traveling rail in the longitudinal direction of the traveling rail. The transport body includes a traveling wheel (4) which is capable of rolling on the traveling rail and drive wheels (2) which are capable of rolling on the drive tubes upon receiving the rotational drive power generated by pressure of a pressure medium supplied to the drive tubes while depressing the drive tubes. The traveling rail includes a plurality of transport sections and the transport body is capable of receiving a rotational drive force from the drive tubes at every transport sections. If necessary, a transport route changeover switch which changes over the transport route can be provided between the transport sections.

Kurosawa, Kanji (Tokyo, JP); Koga, Bunichiro (Miyagi, JP); Ito, Hideki (Miyagi, JP); Kiriyama, Shigeru (Miyagi, JP); Higuchi, Shizuo (Kanagawa, JP)

2003-05-20

100

Numeration Systems  

NSDL National Science Digital Library

All About Circuits is a website that âÂÂprovides a series of online textbooks covering electricity and electronics.â Written by Tony R. Kuphaldt, the textbooks available here are wonderful resources for students, teachers, and anyone who is interested in learning more about electronics. This specific section, Numeration Systems, is the first chapter in Volume IV âÂÂDigital. A few of the topics covered in this chapter include: Numbers and symbols; Octal and hexadecimal numeration; and Conversion from decimal numeration. Diagrams and detailed descriptions of concepts are included throughout the chapter to provide users with a comprehensive lesson. Visitors to the site are also encouraged to discuss concepts and topics using the All About Circuits discussion forums (registration with the site is required to post materials).

Kuphaldt, Tony R.

2008-07-02

101

Mooring system  

SciTech Connect

This patent describes a mooring system for use on a body of water and having an anchoring structure and a flotation platform. It comprises a waterward end, a coupler comprising means for attaching the coupler with the anchoring structure to permit substantially unrestricted independent movement of the coupler in a direction substantially perpendicular to the surface of the water with substantially restricted movement of the coupler in a direction substantially parallel to the surface of the water; a link member coupled to the attachment means; means for allowing limited rotation of the link member with respect to the attachment means about a horizontally disposed axis perpendicular to the direction of movement of the coupler and means for allowing the waterward end of the flotation platform to pivot upward around the link member while preventing the flotation platform from pivoting downward substantially below the horizontal plane defined by the attachment means and the pivot means.

Hemminger, P.W.

1991-09-03

102

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

103

Systems toxicology.  

PubMed

The need for a more mechanistic understanding of the ways in which chemicals modulate biological pathways is urgent if we are to identify and better assess safety issues relating to a wide range of substances developed by the pharmaceutical, chemical, agri-bio, and cosmetic industries. Omics technologies provide a valuable opportunity to refine existing methods and provide information for so-called integrated testing strategies via the creation of signatures of toxicity. By mapping these signatures to underlying pathways of toxicity, some of which have been identified by toxicologists over the last few decades, and bringing them together with pathway information determined from biochemistry and molecular biology, a "systems toxicology" approach will enable virtual experiments to be conducted that can improve the prediction of hazard and the assessment of compound toxicity. PMID:22562485

Hartung, Thomas; van Vliet, Erwin; Jaworska, Joanna; Bonilla, Leo; Skinner, Nigel; Thomas, Russell

2012-01-01

104

Battery system  

US Patent & Trademark Office Database

A battery system includes: a battery unit formed by electrically connected in series a plurality of cell groups each made up with a plurality of battery cells electrically connected in series; a plurality of sensing lines for detecting voltages of respective battery cells in the battery unit; an integrated circuit provided to each of the cell group, to which the sensing lines for detecting voltages of respective battery cells in the cell group are connected; a case having housed therein a substrate at which a plurality of integrated circuits provided for the cell groups respectively are mounted; noise protection capacitors disposed between input terminals of the plurality of sensing lines; and at least one protection element against static electricity which is connected between the input terminals and the case.

2013-08-27

105

Solar system  

SciTech Connect

An improved solar heat collecting system is described comprising: a collecting means having upper and lower end caps; means for supporting the collecting means in a position generally perpendicular to ambit solar radiation and to permit periodic adjustment thereof; the support means including a base, a first support bar pivotally secured to the base and extending parallel to the ground, and a first support member extending perpendicular from the first support bar to the lower end cap. The support means also includes a second support bar pivotally secured to the base and extending generally parallel to the first support bar, a support leg having a lower portion that extends perpendicularly from the second support bar, an intermediate leg portion slidingly mounted on the lower leg portion and an upper leg portion pivotally secured to the intermediate leg portion, and a second support member extending perpendicularly from the upper leg portion to the upper end cap; lens means disposed above the collecting means for concentrating solar radiation on the collecting means; a pair of reflector means mounted below and on opposite sides of the radiation shadow of the lens means for concentrating solar radiation on the collecting means; mounting means for mounting the lens means and the reflector means. The mounting means includes first and second bracket means rotatively mounted respectively to the first and second support members. A pair of radially extending U-shaped reflector mounts have opposite ends secured to respective bracket means, and a pair of radially extending lens supports secured to respective bracket means; and means for rotating the mounting means and associated lens mean and reflector means to track the source of solar radiation whereby an improved, highly efficient solar heat collecting system is provided.

Gregory, S.T.

1987-02-24

106

Technology reviews: Glazing systems.  

National Technical Information Service (NTIS)

We present a representative review of existing, emerging, and future technology options in each of five hardware and systems areas in envelope and lighting technologies: lighting systems, glazing systems, shading systems, daylighting optical systems, and ...

J. Schuman F. Rubinstein K. Papamichael L. Beltran E. S. Lee

1992-01-01

107

Prosthetic Knee Systems  

MedlinePLUS

... of fluid control systems — pneumatic (using air) and hydraulic (using fluid). Pneumatic control. These systems: compress air ... control than friction systems are less effective than hydraulic systems. Hydraulic control. These systems: use liquid (usually ...

108

Systems concepts for training systems development  

Microsoft Academic Search

Reviews literature showing the effects of fragmented training development and presents systems theory and training systems concepts and definitions. The author also discusses system-oriented research issues in the areas of training needs and goals analysis, training device design and use, and training system evaluation. It is shown that a systems perspective will facilitate communication between the diverse individuals engaged in

Robert T. Hays

1992-01-01

109

Acquisitions Systems: Sydney Micro Library System.  

ERIC Educational Resources Information Center

|The Sydney Micro Library System is a microcomputer-based integrated library system with cataloging, inquiry, and system management modules that form the base system for running the optional acquisitions, circulation, serials, and MARC record modules. Designed for small special libraries, the system has parallel minicomputer and microcomputer…

Desmarais, Norman

1986-01-01

110

A planning support system for system of systems engineering  

Microsoft Academic Search

This paper describes a planning system for SOSE (system of systems engineering). Based on the analysis of the characteristics of the planning for SOSE, the architecture framework of the planning system is introduced, which not only supports the process design and organization design, but also monitor of SOSE process. A plan representation is proposed for planning SOSE, which emphasizes on

Yong Wang; Zhong Liu; Wei-Ming Zhang; Jin-Cai Huang; Bao-Xin Xiu

2007-01-01

111

Ignition system  

SciTech Connect

An ignition system for a spark ignited internal combustion engine is described comprising, a source of direct voltage having positive and negative terminals, an ignition coil having a primary winding and a secondary winding, an N-channel semiconductor device having a gate, a drain and a source, means connecting the positive terminal of the direct voltage source to the drain means connecting the primary winding between the source of the N-channel semiconductor device and the negative terminal of the direct voltage source, a semiconductor switch means connected between the gate and source of the N-channel semiconductor device. The semiconductor switch means when conductive connecting the gate and source of the N-channel semiconductor device, means for biasing the N-channel semiconductor device on and off. The primary winding develops a flyback voltage that is negative at its end that is connected to the source of the N-channel semiconductor device when the N-channel semiconductor device is biased off, and means for causing the semiconductor switch means to be biased conductive in response to the development of the flyback voltage to thereby maintain the N-channel semiconductor device off.

Haines, D.L.; Hopper, D.H.

1988-04-19

112

Site systems engineering: Systems engineering management plan.  

National Technical Information Service (NTIS)

The Site Systems Engineering Management Plan (SEMP) is the Westinghouse Hanford Company (WHC) implementation document for the Hanford Site Systems Engineering Policy, (RLPD 430.1) and Systems Engineering Criteria Document and Implementing Directive, (RLID...

M. L. Grygiel

1996-01-01

113

LCA (life cycle analysis) chosa kenkyu. (Investigation on LCA (life cycle analysis/assessment)).  

National Technical Information Service (NTIS)

Importance is attached to the life cycle analysis/assessment (LCA) which is a method to analyze and assess the load of products on the environment for the enterprises to concretely take environment protecting actions. To initiate the LCA research, a surve...

1994-01-01

114

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

115

Nogyo kankyo kenkyu seika joho. 12. (Research result information for agriculture and environment. No.12).  

National Technical Information Service (NTIS)

Essential purposes of productivity improvement, which human being have desires in agriculture for a long time, can not be discussed without considering relations with the environment, nowadays. In these situations, significant investigations have been cre...

1996-01-01

116

Saibo zoshoku seigyo gijutsu no sendo kenkyu. (Leading research on artificial techniques controlling cellular function).  

National Technical Information Service (NTIS)

Advanced research and its applicability were surveyed to apply the advanced functional cells to industry. The basic target was set to develop, produce, control and utilize the functional cells, such as intelligent materials and self-regulation bioreactors...

1996-01-01

117

System design description cone penetrometer system  

SciTech Connect

The system design description documents in detail the design of the cone penetrometer system. The systems includes the cone penetrometer physical package, raman spectroscopy package and moisture sensor package. Information pertinent to the system design, development, fabrication and testing is provided.

Seda, R.Y., Westinghouse Hanford

1996-08-12

118

Site systems engineering: Systems engineering management plan  

Microsoft Academic Search

The Site Systems Engineering Management Plan (SEMP) is the Westinghouse Hanford Company (WHC) implementation document for the Hanford Site Systems Engineering Policy, (RLPD 430.1) and Systems Engineering Criteria Document and Implementing Directive, (RLID 430.1). These documents define the US Department of Energy (DOE), Richland Operations Office (RL) processes and products to be used at Hanford to implement the systems engineering

Grygiel

1996-01-01

119

D0 Cryo System Control System Autodialer  

SciTech Connect

The DO cryogenic system is controlled by a TI565-PLC based control system. This allows the system to be unmanned when in steady state operation. System experts will need to be contacted when system parameters exceed normal operating points and reach alarm setpoints. The labwide FIRUS system provides one alarm monitor and communication link. An autodialer provides a second and more flexible alarm monitor and communication link. The autodialer monitors contact points in the control system and after receiving indication of an alarm accesses a list of experts which it calls until it receives an acknowledgement. There are several manufacturers and distributors of autodialer systems. This EN explains the search process the DO cryo group used to fmd an autodialer system that fit the cryo system's needs and includes information and specs for the unit we chose.

Urbin, J.; /Fermilab

1990-04-17

120

Photovoltaic System Research Status.  

National Technical Information Service (NTIS)

After a decade of photovoltaic system research, most system related issues have been successfully resolved. Current system research activities are now oriented toward maintaining and updating the comprehensive database on system performance established by...

H. N. Post G. J. Jones M. G. Thomas

1989-01-01

121

A Stimuli Presentation System.  

National Technical Information Service (NTIS)

Laboratory and research field trip requirements have revealed the need for a programmable audio switching system. This system, the stimuli presentation system (SPS), is designed with general versatility in mind. Although the system was conceived for use i...

W. D. Harrington H. Hollien H. Rothman

1969-01-01

122

Integrated library systems.  

PubMed Central

The development of integrated library systems is discussed. The four major discussion points are (1) initial efforts; (2) network resources; (3) minicomputer-based systems; and (4) beyond library automation. Four existing systems are cited as examples of current systems.

Goldstein, C M

1983-01-01

123

Continuous Informations Systems.  

National Technical Information Service (NTIS)

The motion of an algebraic information system is generalized to that of a continuous information system. Just as algebraic information systems are concrete representations of bounded complete algebraic dcpo's (Scott domains), continuous information system...

R. Hoofman

1990-01-01

124

Mechanical Systems: A Compilation.  

National Technical Information Service (NTIS)

A compilation of several mechanized systems is presented. The articles are contained in three sections: robotics, industrial mechanical systems, including several on linear and rotary systems and lastly mechanical control systems, such as brakes and clutc...

1975-01-01

125

TPAP Operating System Executive.  

National Technical Information Service (NTIS)

This report describes a special purpose, virtual operating system designed to enhance the flexibility and capability of the Transaction Processing System within the Honeywell Series 60/6000/600 Information Systems. The special purpose operating system is ...

R. Ewing

1975-01-01

126

Stanchion System Upgrade  

NSF Publications Database

... utility systems on poles will be relocated to the above ground stanchion system. As part of this ... current utility system will remain the same at McMurdo Station. The current system presents numerous ...

127

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

128

Extensible Virtual Environment Systems Using System of Systems Engineering Approach  

Microsoft Academic Search

The development of Virtual Environment (VE) systems is a challenging endeavor with a complex problem domain. The experience in the past decade has helped contribute significantly to various measures of software quality of the resulting VE systems. However, the resulting solutions remain monolithic in nature without addressing successfully the issue of system interoperability and software aging. This paper argues that

Manuel Oliveira; Joao Pereira

2007-01-01

129

On Long Lifespan systems  

Microsoft Academic Search

Complex systems are not only characterized by their magnitudes, but also their lifespans. This paper presents a theory of Long-Lifespan systems (LLS's) and its applications in explaining the properties of complex systems from both the function and time dimensions. The mathematical models of LLS's such as those of the abstract systems, system magnitudes, and system lifespan, are established. Then, properties

Yingxu Wang

2008-01-01

130

Controllability of molecular systems  

Microsoft Academic Search

In this paper we analyze the controllability of quantum systems arising in molecular dynamics. We model these systems as systems with finite numbers of levels, and examine their controllability. To do this we pass to their unitary generators and use results on the controllability of invariant systems on Lie groups. Examples of molecular systems, modeled as finite-dimensional control systems, are

Viswanath Ramakrishna; Murti V. Salapaka; Mohammed Dahleh; Herschel Rabitz; Anthony Peirce

1995-01-01

131

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

132

Quantitative solar system science with AO systems  

NASA Astrophysics Data System (ADS)

Adaptive Optics systems, today available on 8-10m class telescopes are playing a significant role in the study of our solar system bodies. We describe three main science cases i) small solar system bodies ii) satellites of giant planets iii) giant planets atmospheres. We describe recent results acquired with these systems in these fields. We discuss the limitation and potential of AO systems for these studies, and address the problem of observability specific to moving targets. The potential for planetary science of future and improved AO systems is described.

Marchis, Franck; Berthier, Jerome; Wong, Michael H.

2012-07-01

133

Social Services Information System: System Description Manual.  

National Technical Information Service (NTIS)

The design and implementation philosophy of the Social Services Information System (SSIS) of the Colorado Department of Social Services are described, and technical background and systems documentation are provided in a manual intended for technical perso...

1975-01-01

134

An Operating System Independent WORM Archival System  

Microsoft Academic Search

SUMMARY We describe the organization of a general purpose data archival system for Write-Once, Read-Many (WORM) optical disks. The system has been designed for large-scale and long-term data storage and retrieval. The archival system is independent of the operating system, flat, self-consistent, does not use any write cache on magnetic disk, and allows the exploitation of auxiliary information on magnetic

Guido Russo; Stefano Russo

1995-01-01

135

LCLS XTOD Attenuator System System Concept Report  

SciTech Connect

The attenuator system for the Linac Coherent Light Source (LCLS) X-ray Transport, Optics and Diagnostics (XTOD) system has been configured and analyzed by the Lawrence Livermore National Laboratory's New Technologies Engineering Division (NTED) as requested by the SLAC/LCLS program. The system layout, performance analyses and selection of the vacuum components are presented in this System Conceptual Review (SCR) report. Also included are the plans for prototype, procurement, mechanical integration, and the cost estimates.

Kishiyama, K; Roeben, M; Trent, J; Ryutov, D; Shen, S

2006-04-12

136

Randomization for Testing Systems of Systems  

Microsoft Academic Search

This paper applies randomization theory to the problem of selecting software test cases for software systems and applications in order to overcome the hurdle of high cost in testing componentized systems of systems (SoS). We have used a corner point semantics, which can approximate a proof of correctness - termed a pseudo-proof of correctness. Test cases for each component are

Qianhui Althea Liang; Stuart Harvey Rubin

2009-01-01

137

A systems analysis of systems integration  

Microsoft Academic Search

Most if not all complex issues stated as problems intended to result in new systems may be analyzed using systems decomposition and then constructed by synthesis. Systems decomposition starts with a complex problem that may or may not be obviously solvable and deconstructs that problem into smaller more tractable problems that can be solved. Construction by synthesis treats the smaller

Robert Schaefer

2008-01-01

138

Systems Engineering Cost Estimation for Space Systems  

Microsoft Academic Search

The applicability of COSYSMO, a systems engineering cost model, is explored in the context of space systems through the analysis of two main assumptions. First, the WBS elements of the model are mapped to a prototypical WBS for space systems. Second, the life cycle phases assumed in the model are mapped to the phases outlined in the latest National Security

Ricardo Valerdi; Marilee J. Wheaton; Jared Fortune

2007-01-01

139

CPS (Collective Protective System) Alarm System.  

National Technical Information Service (NTIS)

An improved collective protection system (CPS) alarm is generally comprised of an electronic circuit board terminal box that is readily connectable to any selected point of a ship power bus system. The system is provided with a plurality of pressure trans...

B. A. Repp A. M. Wurm A. J. Simonoff S. R. Courtney

1988-01-01

140

Immune System Based Intrusion Detection System  

Microsoft Academic Search

The threats and intrusions in IT systems can basically be compared to human diseases with the difference that the human body has an effective way to deal with them, what still need to be designed for IT systems. The human immune system (HIS) can detect and defend against yet unseen intruders, is distributed, adaptive and multilayered to name only a

Christoph Ehret; Ulrich Ultes-nitsche

2008-01-01

141

Intelligence systems: a sociotechnical systems perspective  

Microsoft Academic Search

To effectively compete a firm needs to take advantage of their intellectual capital. However, intellectual capital alone is not sufficient to capitalize on the intellectual assets of the firm. An intelligence system is also necessary. We propose an intelligence system, consisting of four evolving components: a corporate data base of transaction processing and management information systems, a decision-making environment of

James A. Sena

1999-01-01

142

Enhancing Ubiquitous Systems through System Call Mining  

Microsoft Academic Search

Collecting, monitoring, and analyzing data automatically by well instrumented systems is frequently motivated by human decision-making. However, the same need occurs when system software decisions are to be justified. Compiler optimization or storage management requires several decisions which result in more or less resource consumption, be it energy, memory, or runtime. A magnitude of system data can be collected in

Katharina Morik; Felix Jungermann; Nico Piatkowski; Michael Engel

2010-01-01

143

Clinical information systems.  

PubMed

Clinical information systems are the computer and information systems used by health care personnel to facilitate patient care. These systems have evolved from financial systems to true patient care systems with variable levels of functionality. Early systems provided laboratory and radiology results, and modern systems now provide copies of the radiology images and decision support for therapeutic orders. The rapidly changing technological infrastructure has created barriers to implementation of the electronic medical record, while coding schemes continue to be refined to enable data access and aggregate data analysis. Further refinement of clinical information systems is required before the potential value of these systems is realized in the clinical management of patients. PMID:10688384

Hardin, W D

2000-02-01

144

Expert Systems: An Overview.  

ERIC Educational Resources Information Center

Discusses: (1) the architecture of expert systems; (2) features that distinguish expert systems from conventional programs; (3) conditions necessary to select a particular application for the development of successful expert systems; (4) issues to be resolved when building expert systems; and (5) limitations. Examples of selected expert systems

Adiga, Sadashiv

1984-01-01

145

Interactive Video Authoring Systems.  

ERIC Educational Resources Information Center

|Five articles describe the following microcomputer-based interactive video authoring aids: (1) IBM's Learning System/1; (2) Video Nova Authoring System; (3) IMSATT Corporation's expert-based authoring system; (4) the System for Authoring Microtraining (SAM); and (5) Omnicom's Content Expert Interviewer and Interactive Design and Authoring System.…

Taylor, Timothy D.; And Others

1987-01-01

146

Power system commonality study  

Microsoft Academic Search

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

Franklin D. Littman

1992-01-01

147

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

148

Anticipatory systems in physics  

Microsoft Academic Search

Purpose – The study of anticipatory systems assumes the existence of two distinct types of systems in nature. Some systems anticipate the future and such anticipation forms part of the system itself, while other systems, however, do not anticipate and solely rely on past states. This article aims to argue that this distinction is inadequate given the current understanding of

J. Ferret

2010-01-01

149

Organization in Biological Systems  

Microsoft Academic Search

Biological systems are typically hierarchically organized, open, nonlinear systems, and inherit all of the characteristics of such systems that are found in the purely physical and chemical domains, to which all biological systems belong. In addition, biological systems exhibit functional properties, and they contain information in a form that is used internally to make required functional distinctions. The existence of

John Collier

150

System Specification in Rosetta  

Microsoft Academic Search

System level specification and analysis has become a critical issue in designing today's ever increasingly complex systems. System level design is distinguished from other design activities by its heterogeneous nature. Specifically, systems level designers must integrate information from many different design domains in a single design decision making activity. Rosetta is a systems level specification language that addresses problems specific

Perry Alexander; Roshan Kamath; David Barton

2000-01-01

151

The LSST: A System of Systems  

NASA Astrophysics Data System (ADS)

The Large Synoptic Survey Telescope (LSST) is a complete observing system that acquires and archives images, processes and analyzes them, and publishes reduced images and catalogs of sources and objects. The LSST will operate over a ten year period producing a survey of 20,000 square degrees over the entire [Southern] sky in 6 filters (ugrizy) with each field having been visited several hundred times enabling a wide spectrum of science from fast transients to exploration of dark matter and dark energy. The LSST itself is a complex system of systems consisting of the 8.4m 3-mirror telescope, a 3.2 billion pixel camera, and a peta-scale data management system. The LSST project uses a Model Based Systems Engineering (MBSE) methodology to ensure an integrated approach to system design and rigorous definition of system interfaces and specifications. The MBSE methodology is applied through modeling of the LSST's systems with the System Modeling Language (SysML). The SysML modeling recursively establishes the threefold relationship between requirements, logical & physical functional decomposition and definition, and system and component behavior at successively deeper level of abstraction and detail. The LSST modeling includes the analysis and documenting the flow of command and control information and data between the suite of systems in the LSST observatory that are needed to carry out the activities of the survey. The MBSE approach is applied throughout all stages of the project from design, to validation and verification, though to commissioning.

Claver, Chuck F.; Debois-Felsmann, G. P.; Delgado, F.; Hascall, P.; Marshall, S.; Nordby, M.; Schumacher, G.; Sebag, J.; LSST Collaboration

2011-01-01

152

What Are Expert Systems?  

ERIC Educational Resources Information Center

Intended for potential business users, this paper describes the main characteristics of expert systems; discusses practical use considerations; presents a taxonomy of the systems; and reviews several expert system development projects in business and industry. (MBR)

d'Agapeyeff, A.

1986-01-01

153

Spaceplane system studies  

Microsoft Academic Search

Basic system concepts of Japanese spaceplane research and development are presented. The single stage to orbit system of the spaceplane is illustrated. The hypersonic airbreathing propulsion system is addressed.

Masataka Maita

1991-01-01

154

Orthopedics Clinic Assistant System.  

National Technical Information Service (NTIS)

This research proposed a system, which integrated the complete patient information, including the medical images, for assisting orthopedics clinic diagnosis. The system concurrently operated with legacy systems and conformed itself to correspond with the ...

S. Tang Y. Huang M. Hsiao T. Lee S. Young

2001-01-01

155

Lesson 44: Nonlinear Systems  

NSDL National Science Digital Library

Using a cost/revenue application problem, the lesson begins with systems involving quadratic equations. Systems with conics are introduced next along with the elimination method for solving these systems.

2011-01-01

156

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

157

Neutron Radiographic Viewing System.  

National Technical Information Service (NTIS)

The design, development and application of a neutron radiographic viewing system for use in nondestructive testing applications is considered. The system consists of a SEC vidicon camera, neutron image intensifier system, disc recorder, and TV readout. Ne...

1972-01-01

158

Assistive Listening Systems.  

National Technical Information Service (NTIS)

The pamphlet describes commercially available devices and systems for making public address and other types of communication systems more accessible to persons with hearing impairments. It describes types of systems and their installation.

1989-01-01

159

Flash Evaporator Systems Test.  

National Technical Information Service (NTIS)

A flash evaporator heat rejection system representative of that proposed for the space shuttle orbiter underwent extensive system testing at the NASA Johnson Space Center (JSC) to determine its operational suitability and to establish system performance/o...

J. B. Dietz

1976-01-01

160

Street Address Conversion System.  

National Technical Information Service (NTIS)

The report documents the genesis of the Urban Data Center 'Street Address Conversion System,' the prototype street address geocoding system operational in the Seattle, Washington, area. Three basic system concepts are defined: the 'grid block,' the 'stree...

R. B. Dial

1964-01-01

161

Hybrid Systems Diagnosis.  

National Technical Information Service (NTIS)

This paper reports on an on-going Project to investigate techniques to diagnose complex dynamical systems that are modeled as hybrid systems. In particular, we examine continuous systems with embedded supervisory controllers that experience abrupt, partia...

S. McIlraith G. Biswas D. Clancy V. Gupta

2005-01-01

162

Ammonia Production Systems Integration.  

National Technical Information Service (NTIS)

Conceptual designs of 11 mobile ammonia fuel production systems were prepared. These systems represent various combinations of total electric power to the system, mobility class, electrical power frequency, and cooling medium. This report presents a descr...

B. N. Thomson G. E. Hook N. T. Mills R. A. Coval R. M. Reinstrom

1966-01-01

163

Autonomic Nervous System Disorders  

MedlinePLUS

Your autonomic nervous system is the part of your nervous system that controls involuntary actions, such as the beating of your heart ... breathing and swallowing Erectile dysfunction in men Autonomic nervous system disorders can occur alone or as the result ...

164

Hermes Propulsion System.  

National Technical Information Service (NTIS)

The initial baseline concept of the storable bipropellant propulsion system of the Hermes spaceplane is discussed. The general architecture of the propulsion system is shown. The design features of the engines of the main propulsion system and of the thru...

H. Immich H. Hopmann T. Caussin

1987-01-01

165

Tropix Power System Architecture.  

National Technical Information Service (NTIS)

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...

D. B. Manner J. M. Hickman

1995-01-01

166

Portable Graphics System.  

National Technical Information Service (NTIS)

LASL implemented a graphics system designed to support all graphics devices in all operating environments at LASL. This system, Common Graphics System (CGS), supports level one of the graphics standard proposed by the ACM/SIGGRAPH Graphics Standards Plann...

R. G. Kellner T. N. Reed A. V. Solem

1978-01-01

167

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

168

Systems interface biology  

PubMed Central

The field of systems biology has attracted the attention of biologists, engineers, mathematicians, physicists, chemists and others in an endeavour to create systems-level understanding of complex biological networks. In particular, systems engineering methods are finding unique opportunities in characterizing the rich behaviour exhibited by biological systems. In the same manner, these new classes of biological problems are motivating novel developments in theoretical systems approaches. Hence, the interface between systems and biology is of mutual benefit to both disciplines.

Doyle, Francis J; Stelling, Jorg

2006-01-01

169

The LSST: A System of Systems  

NASA Astrophysics Data System (ADS)

The LSST is a complete observing system that acquires and archives images, processes and analyzes them, and publishes reduced images and catalogs of sources and objects. The LSST will operate over a ten year period producing a survey of 20,000 square degrees over the entire southern sky in 6 filters (ugrizy) with each field having been visited several hundred times enabling a wide spectrum of science from fast transients to exploration of dark matter and dark energy. The LSST itself is a complex system of systems consisting of the 8.4m three mirror telescope, a 3.2 billion pixel camera, and a peta-scale data management system. The LSST project uses a Model Based Systems Engineering (MBSE) methodology to ensure an integrated approach to system design and rigorous definition of system interfaces and specifications. The MBSE methodology is applied through modeling of the LSST's systems with the System Modeling Language (SysML). The SysML modeling recursively establishes the threefold relationship between requirements, logical & physical functional decomposition and definition, and system and component behavior at successively deeper levels of abstraction and detail. The MBSE approach is applied throughout all stages of the project from design, to validation and verification, though to commissioning.

Claver, Chuck F.; Dubois-Felsmann, G. P.; Delgado, F.; Hascall, P.; Horn, D.; Marshall, S.; Nordby, M.; Schalk, T. L.; Schumacher, G.; Sebag, J.; LSST Project Team

2010-01-01

170

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

171

Spectra Optia Apheresis System  

Center for Biologics Evaluation and Research (CBER)

... Spectra Optia Apheresis System. Applicant: Terumo BCT, Inc. 510(k) number: BK120076. Product: Spectra Optia® Apheresis System. ... More results from www.fda.gov/biologicsbloodvaccines/bloodbloodproducts/approvedproducts

172

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

173

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

174

INSENS sensor system  

SciTech Connect

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 along its land borders. Key to the system is its flexible modular design which allows future software and hardware enhancements to the system without altering the fundamental architecture of the system. Elements of the system include a sensor system capable of processing signals from multiple directional probes, a repeater system, and a handheld monitor system. Seismic, passive infrared (PIR), and magnetic probes are currently supported. The design of the INSENS system elements and their performance are described.

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

1993-09-29

175

Forming different planetary systems  

NASA Astrophysics Data System (ADS)

With the increasing number of detected exoplanet samples, the statistical properties of planetary systems have become much clearer. In this review, we summarize the major statistical results that have been revealed mainly by radial velocity and transiting observations, and try to interpret them within the scope of the classical core-accretion scenario of planet formation, especially in the formation of different orbital architectures for planetary systems around main sequence stars. Based on the different possible formation routes for different planet systems, we tentatively classify them into three major catalogs: hot Jupiter systems, standard systems and distant giant planet systems. The standard system can be further categorized into three sub-types under different circumstances: solar-like systems, hot Super-Earth systems, and subgiant planet systems. We also review the theory of planet detection and formation in binary systems as well as planets in star clusters.

Zhou, Ji-Lin; Xie, Ji-Wei; Liu, Hui-Gen; Zhang, Hui; Sun, Yi-Sui

2012-08-01

176

Qualitative Action Systems  

NASA Astrophysics Data System (ADS)

An extension to action systems is presented facilitating the modeling of continuous behavior in the discrete domain. The original action system formalism has been developed by Back et al. in order to describe parallel and distributed computations of discrete systems, i.e. systems with discrete state space and discrete control. In order to cope with hybrid systems, i.e. systems with continuous evolution and discrete control, two extensions have been proposed: hybrid action systems and continuous action systems. Both use differential equations (relations) to describe continuous evolution. Our version of action systems takes an alternative approach by adding a level of abstraction: continuous behavior is modeled by Qualitative Differential Equations that are the preferred choice when it comes to specifying abstract and possibly non-deterministic requirements of continuous behavior. Because their solutions are transition systems, all evolutions in our qualitative action systems are discrete.

Aichernig, Bernhard K.; Brandl, Harald; Krenn, Willibald

177

INMARSAT communications system: A systems approach  

NASA Astrophysics Data System (ADS)

This study describes the history of satellite communications from its beginning to the current date and explains the major components of satellite communications. It describes the satellite communications technology, and identifies some of its problems such as speech echo, data transmission, and digital network synchronization. It deals with U.S. military and international satellite communications systems, and especially with Inmarsat. It also presents the possible threats for a satellite communications system and discusses how to deal with them. Finally, it introduces some conditions and technical considerations of the Inmarsat system in the Hellenic environment and provides some basic information for choosing a satellite system from an economic point of view.

Fasoulas, Aristides I.

1991-06-01

178

Site systems engineering: Systems engineering management plan  

SciTech Connect

The Site Systems Engineering Management Plan (SEMP) is the Westinghouse Hanford Company (WHC) implementation document for the Hanford Site Systems Engineering Policy, (RLPD 430.1) and Systems Engineering Criteria Document and Implementing Directive, (RLID 430.1). These documents define the US Department of Energy (DOE), Richland Operations Office (RL) processes and products to be used at Hanford to implement the systems engineering process at the site level. This SEMP describes the products being provided by the site systems engineering activity in fiscal year (FY) 1996 and the associated schedule. It also includes the procedural approach being taken by the site level systems engineering activity in the development of these products and the intended uses for the products in the integrated planning process in response to the DOE policy and implementing directives. The scope of the systems engineering process is to define a set of activities and products to be used at the site level during FY 1996 or until the successful Project Hanford Management Contractor (PHMC) is onsite as a result of contract award from Request For Proposal DE-RP06-96RL13200. Following installation of the new contractor, a long-term set of systems engineering procedures and products will be defined for management of the Hanford Project. The extent to which each project applies the systems engineering process and the specific tools used are determined by the project`s management.

Grygiel, M.L. [Westinghouse Hanford Co., Richland, WA (United States)

1996-05-03

179

Solar energy recovery system  

SciTech Connect

A solar tracking system for a sun sensitive system such as a solar energy generating unit is described. Means for tracking the sun in bright sunlight and in cloudy conditions having a sun sensing mode and a blind mode are disclosed. Solar energy generating units compatible with the solar tracking system capable of automatically operating a stock watering system are also disclosed.

Arbogast, C.C.

1984-10-16

180

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

181

Designing Project Management Systems  

Microsoft Academic Search

The purpose of this paper is to develop the concept of project management system from the perspective of systems science. There is a need to extend the body of knowledge for project management. In particular, the application of systems perspectives and systems theory offers a significant opportunity to advance the current state of project management knowledge. Although there have been

Gamze Karayaz; Charles B. Keating; Morgan Henrie

2011-01-01

182

Automated reasoning system ITP  

Microsoft Academic Search

This report describes a system designed to provide a portable environment for the study of automated reasoning. The system is built on the LMA automated reasoning subroutine package. This program is not part of LMA itself but illustrates the level of inference-based system that can be constructed from the LMA package of tools. It is a clause-based reasoning system supporting

E. L. Lusk; R. A. Overbeek

1984-01-01

183

Polymer Electronics Systems - Polytronics  

Microsoft Academic Search

Current trends in the development of electronics systems show that the provision of thin flexible components and semiconductors plays a decisive role in the steadily progressing development of highly integrated systems. A new generation of thin flexible electronic systems arises. At Fraunhofer IZM, inline manufacturing processes for polymer electronic systems are developed on production type equipment. A low-cost process for

KARLHEINZ BOCK

2005-01-01

184

Observers for multivariable systems  

Microsoft Academic Search

Often in control design it is necessary to construct estimates of state variables which are not available by direct measurement. If a system is linear, its state vector can be approximately reconstructed by building an observer which is itself a linear system driven by the available outputs and inputs of the original system. The state vector of annth order system

D. Luenberger

1966-01-01

185

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

186

System Reliability Sensitivity Measures  

Microsoft Academic Search

System reliability sensitivity measures are proposed to assist designers and reliability analysts in prioritizing reliability improvement and testing activities. In complex system designs, a common goal is to improve system reliability by increasing the reliability of the components to be used within the system. Component reliability is generally estimated from field failure data or test data. Unfortunately, these data are

Tongdan Jin; David W. Coit

187

Systems engineering management plan  

Microsoft Academic Search

The purpose of this Systems Engineering Management Plan (SEMP) is to prescribe the systems engineering procedures to be implemented at the Program level and the minimum requirements for systems engineering at the Program-element level. The Program level corresponds to the Director, OCRWM, or to the organizations within OCRWM to which the Director delegates responsibility for the development of the System

Conner

1985-01-01

188

Developing Systems Engineering Ontologies  

Microsoft Academic Search

Systems engineering ontologies are required to assist interested parties in understanding the systems engineering discipline's broad and multi-faceted nature. This paper discusses the need for and general benefits of an ontology. The authors discuss the use of the domain knowledge acquisition process ontology modeling technique and its application to capture a systems engineering functional domain ontology. A preliminary systems engineering

B. Sarder; S. Ferreira

2007-01-01

189

Multipurpose Visualization System  

Microsoft Academic Search

This paper deals with the design and architecture of the low cost multipurpose flight visualization system (MFVS). The MFVS system was originally developed as a passive IFR approach system for general aviation small planes. A relatively high adaptability is one of the main advantages. It can be easily used with many types of avionics devices. The GPS\\/INS system is used

P. Bojda; P. Frantis

2006-01-01

190

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

191

The immune system  

Microsoft Academic Search

The immune system consists of a heterogenous collection of cells that are exquisitely designed to function as a means of protection from colonization by infectious agents. The cells comprising the immune system are described as well as their development and function. The immune system is tightly regulated by a system of signals transmitted by soluble substances (interleukins) as well as

Philip J. Morrissey

1997-01-01

192

Medical imaging systems  

DOEpatents

A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

Frangioni, John V

2013-06-25

193

Stability of hybrid systems  

Microsoft Academic Search

We introduce a model of hybrid systems as a combination of discrete state and continuous state systems. The continuous state space is divided into regions so that in every region, depending on the discrete state of hybrid system, the continuous state system dynamic functions which are called representative functions are found. The switching situation in a region is studied and

Murat Dogruel; Umit Ozguner

1994-01-01

194

Integrated library systems.  

PubMed

The development of integrated library systems is discussed. The four major discussion points are (1) initial efforts; (2) network resources; (3) minicomputer-based systems; and (4) beyond library automation. Four existing systems are cited as examples of current systems. PMID:6354321

Goldstein, C M

1983-07-01

195

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

196

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

197

Vehicle tracking systems  

SciTech Connect

Several systems have been developed to accomplish vehicle location. The systems consist of three types: Dead Reckoning, Satellite, and LORAN C. If the information is to be sent back to a central location, some type of radiocommunication system is needed. One can use the existing voice radio or add a radio system just for transmitting the data.

Schwalm, R.W.

1987-01-01

198

Broad Bandwidth Telecommunications Systems.  

ERIC Educational Resources Information Center

|Broad bandwidth transmission systems have been around for years. They include microwave, assorted cable systems, and recently, satellites. With the exception of some privately owned systems, broadband services have been furnished by the common carriers. Recently, a new element has been added--Cable Antenna Television (CATV) distribution systems.…

Sodolski, John

199

Corba for control systems  

Microsoft Academic Search

The Common Project Request Broker Architecture (CORBA) is a middle-ware specification for the development of interoperable, distributed object systems. Object technology is of extreme importance in complex control system development besides its progressive use in other types of real-time systems. This paper tries to provide a general overview of the topics in distributed object systems, focusing on CORBA aspects that

Ricardo Sanz; Mariano Alonso

2001-01-01

200

Parameterised boolean equation systems  

Microsoft Academic Search

Boolean equation system are a useful tool for verifying formulas from modal mu-calculus on transition systems (see (18) for an excellent treatment). We are interested in an extension of boolean equation systems with data. This allows to formulate and prove a substantially wider range of properties on much larger and even infinite state systems. In previous works (11, 15) it

Jan Friso Groote; Tim A. C. Willemse

2005-01-01

201

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

202

Digital Storage System.  

National Technical Information Service (NTIS)

The digital storage system has a short access time and a high read-out rate. It is used in burst communication systems. The system is a binary-coded digital system and it employs a plurality of dynamic storage lines, one of which is used to store index bi...

H. L. Heibeck C. G. Wilhelm W. M. Oleson

1966-01-01

203

Graduate Grading Systems.  

ERIC Educational Resources Information Center

|A questionnaire on grading systems was sent to the 287 members of the Council of Graduate Schools. Of the 240 responses, 127 indicated that they used systems other than the A-F traditional system, either in part or in toto. Other systems used include pass/fail, satisfactory/unsatisfactory, pass/no credit, and some variations of the A-F…

Benson, Winston W.

204

EPICS system: system structure and user interface  

SciTech Connect

This paper present the user's view of and the general organization of the EPICS control system at Fermilab. Various subsystems of the EPICS control system are discussed. These include the user command language, software protection, the device database, remote computer interfaces, and several application utilities. This paper is related to two other papers on EPICS: an overview paper and a detailed implementation paper.

West, R.E.; Bartlett, J.F.; Bobbitt, J.S.; Lahey, T.E.; Kramper, B.J.; MacKinnon, B.A.

1984-02-01

205

Joint Tactical Radio System - Enterprise System Engineering  

Microsoft Academic Search

The Joint Tactical Radio System (JTRS) is a core transformational program within the Department of Defense (DoD), critical to extending the Global Information Grid (GIG) to the tactical edge. The Joint Program Executive Office (JPEO) was established in 2005 to manage the development of JTRS. One of the JPEO's assigned responsibilities was to expand the approach to systems engineering across

Richard North; Calvin Vu; Tom Woodland

2007-01-01

206

An expert system for power systems maintenance  

Microsoft Academic Search

When power equipment fails, maintenance personnel have traditionally had to investigate and repair the equipment by using information supplied by supervision and control systems, specified in manuals, or gained through personal experience. To enable maintenance personnel to respond more quickly and accurately, the authors have developed an expert system (called ALICE-ES), that provides diagnostic expert know-how and emergency procedures arranged

A. Mitsuhashi; T. Maruyama; H. Inoue; T. Takeda

1993-01-01

207

Evolving Information Systems: Beyond Temporal Information Systems  

Microsoft Academic Search

Nowadays, in order for an organisation to be competitive, it must be able to adapt quickly to its dynamic environment. In this paper, we discuss the need for information systems which are capable to evolve to the same extent as organisations do. Requirements of evolving organisations on their in- formation systems are identied, followed by alternative approaches to adequate information

Eckhard D. Falkenberg; J. L. Han Oei; Henderik Alex Proper

1992-01-01

208

System identification of nonlinear resonant systems  

Microsoft Academic Search

This dissertation addresses the problem of thermo-acoustic combustion instability modelling using nonlinear system identification. Specifically we are interested in the identification of closed loop limit cycling systems composed of a linear transfer function with a static nonlinearity in feedback. To begin we address the feasibility of the identification task, in terms of both data quality and dynamical capabilities of the

Wayne John Dunstan

2003-01-01

209

Electric system restructuring and system reliability  

Microsoft Academic Search

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

Catherine Miller Horiuchi

2001-01-01

210

Performance, Performance System, and High Performance System  

ERIC Educational Resources Information Center

|This article proposes needed transitions in the field of human performance technology. The following three transitions are discussed: transitioning from training to performance, transitioning from performance to performance system, and transitioning from learning organization to high performance system. A proposed framework that comprises…

Jang, Hwan Young

2009-01-01

211

Subobject Transformation Systems and Elementary Net Systems  

Microsoft Academic Search

Graph transformation systems (GTSs) (10) are a powerful specification formal- ism for concurrent and distributed systems, generalising another classical model of concurrency, namely Place\\/Transition Petri nets (8). Along the years, the con- current behaviour of GTSs has been deeply studied and a consolidated theory of concurrency is now available. In particular, by exploiting the relationship with Petri nets, several concurrent

Andrea Corradini; Frank Hermann

212

Vending machine accountability system  

US Patent & Trademark Office Database

An accountability system for a vending machine system having means for vending products and means for determining credit, the accountability system comprising a portable electronic data file module which is removable from the system, and means for collecting transaction data from the vending machine system and recording it in the portable electronic data file module. A module interlock and a power monitor are provided to ensure that accurate information is stored in the module.

1981-06-09

213

Identification of hybrid systems  

Microsoft Academic Search

Hybrid or continuous\\/discrete systems have attracted increased scientific attention in recent years. In fact, most technical systems consist of physical (sub)systems which are governed by continuous dynamics, continuous or discrete-time controllers, and logical systems which react to and trigger events in the continuous parts. Hybrid systems also arise from modeling of physical phenomena alone, e.g. in evaporation and other processes

Ingo Hoffmann; Sebastian Engell

1998-01-01

214

System of Systems Enterprise Systems Engineering, the Enterprise Architecture Management Framework, and System of Systems Cost Estimation  

Microsoft Academic Search

Today's need for more complex, more capable systems in a short timeframe is leading more organizations towards the integration of existing systems, Commercial-Off-the-Shelf (COTS) products, and new systems into network-centric, knowledge-based Systems of Systems (SoSs). With this development approach, system development processes to define the new architecture, identify sources to either supply or develop the required components, and eventually integrate

Paul Carlock

2006-01-01

215

On evolutionary systems.  

PubMed

This paper develops a metatheoretical framework for understanding evolutionary systems (systems that develop in ways that increase their own variety). The framework addresses shortcomings seen in other popular systems theories. It concerns both living and nonliving systems, and proposes a metahierarchy of hierarchical systems. Thus, it potentially addresses systems at all descriptive levels. We restrict our definition of system to that of a core system whose parts have a different ontological status than the system, and characterize the core system in terms of five global properties: minimal length interval, minimal time interval, system cycle, total receptive capacity, and system potential. We propose two principles through the interaction of which evolutionary systems develop. The Principle of Combinatorial Expansion describes how a core system realizes its developmental potential through a process of progressive differentiation of the single primal state up to a limit stage. The Principle of Generative Condensation describes how the components of the last stage of combinatorial expansion condense and become the environment for and components of new, enriched systems. The early evolution of the Universe after the "big bang" is discussed in light of these ideas as an example of the application of the framework. PMID:3689299

Alvarez de Lorenzana, J M; Ward, L M

1987-01-01

216

Enhanced nurse call systems.  

PubMed

This Evaluation focuses on high-end computerized nurse call systems--what we call enhanced systems. These are highly flexible systems that incorporate microprocessor and communications technologies to expand the capabilities of the nurse call function. Enhanced systems, which vary in configuration from one installation to the next, typically consist of a basic system that provides standard nurse call functionality and a combination of additional enhancements that provide the added functionality the facility desires. In this study, we examine the features that distinguish enhanced nurse call systems from nonenhanced systems, focusing on their application and benefit to healthcare facilities. We evaluated seven systems to determine how well they help (1) improve patient care, as well as increase satisfaction with the care provided, and (2) improve caregiver efficiency, as well as increase satisfaction with the work environment. We found that all systems meet these objectives, but not all systems perform equally well for all implementations. Our ratings will help facilities identify those systems that offer the most effective features for their intended use. The study also includes a Technology Management Guide to help readers (1) determine whether they'll benefit from the capabilities offered by enhanced systems and (2) target a system for purchase and equip the system for optimum performance and cost-effective operation. PMID:11382209

2001-04-01

217

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

218

Systems Engineering for Large-Scale Fingerprint Systems  

Microsoft Academic Search

Systems engineering for large-scale Automated Fingerprint Recognition Systems (AFIS) involves system planning, specification,\\u000a design, development, testing, and operational support. Testing these systems includes the complex activity of measuring the\\u000a system’s performance. The desired system performance, however, affects each of the system’s engineering functions. For large-scale\\u000a systems, estimating the performance of the full-scale operational system and planning for its development are

Rajiv Khanna

219

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

2012-01-01

220

FPD plasma heating systems  

SciTech Connect

Tandem mirror devices rely on a number of plasma heating systems to create and maintain potential and density profiles which axially confine the central cell and provide MHD stability. The Fusion Power Demonstrator (FPD) tandem mirror study was carried out in three stages, each facility was configured with a slightly different mission and set of constraints. Although the heating system requirements varied in the three stages, the potential peak and thermal barrier ECRH systems and the sloshing ion neutral beam system were common elements of the configurations. The heating systems' requirements, the design approach, and the systems' description are presented.

Freije, S.A.

1985-07-01

221

On maximally superintegrable systems  

NASA Astrophysics Data System (ADS)

Locally any completely integrable system is maximally superintegrable system since we have the necessary number of the action-angle variables. The main problem is the construction of the single-valued additional integrals of motion on the whole phase space by using these multi-valued action-angle variables. Some constructions of the additional integrals of motion for the Stäckel systems and for the integrable systems related with two different quadratic r-matrix algebras are discussed. Among these system there are the open Heisenberg magnet and the open Toda lattices associated with the different root systems.

Tsiganov, A. V.

2008-06-01

222

Modern signals and systems  

NASA Astrophysics Data System (ADS)

The present text on input-output and input-output mapping systems discusses elementary operations on and among time signals, delta functions, the stability of convolution systems, the definition and examples of difference and differential systems, the state description of systems, and linear time-invariant systems with periodic inputs. Also treated are discrete-to-discrete and continuous-to-discrete Fourier transforms, the z- and Laplace transforms, the design of FIR and IIR filters, modulation and demodulation methods, and feedback theory and the stability of feedback systems.

Kwakernaak, Huibert; Sivan, Raphael

223

Introducing Systems Approaches  

NASA Astrophysics Data System (ADS)

Systems Approaches to Managing Change brings together five systems approaches to managing complex issues, each having a proven track record of over 25 years. The five approaches are: System Dynamics (SD) developed originally in the late 1950s by Jay Forrester Viable Systems Model (VSM) developed originally in the late 1960s by Stafford Beer Strategic Options Development and Analysis (SODA: with cognitive mapping) developed originally in the 1970s by Colin Eden Soft Systems Methodology (SSM) developed originally in the 1970s by Peter Checkland Critical Systems Heuristics (CSH) developed originally in the late 1970s by Werner Ulrich

Reynolds, Martin; Holwell, Sue

224

SUBSURFACE EMPLACEMENT TRANSPORTATION SYSTEM  

SciTech Connect

The objective of this analysis is to identify issues and criteria that apply to the design of the Subsurface Emplacement Transportation System (SET). The SET consists of the track used by the waste package handling equipment, the conductors and related equipment used to supply electrical power to that equipment, and the instrumentation and controls used to monitor and operate those track and power supply systems. Major considerations of this analysis include: (1) Operational life of the SET; (2) Geometric constraints on the track layout; (3) Operating loads on the track; (4) Environmentally induced loads on the track; (5) Power supply (electrification) requirements; and (6) Instrumentation and control requirements. This analysis will provide the basis for development of the system description document (SDD) for the SET. This analysis also defines the interfaces that need to be considered in the design of the SET. These interfaces include, but are not limited to, the following: (1) Waste handling building; (2) Monitored Geologic Repository (MGR) surface site layout; (3) Waste Emplacement System (WES); (4) Waste Retrieval System (WRS); (5) Ground Control System (GCS); (6) Ex-Container System (XCS); (7) Subsurface Electrical Distribution System (SED); (8) MGR Operations Monitoring and Control System (OMC); (9) Subsurface Facility System (SFS); (10) Subsurface Fire Protection System (SFR); (11) Performance Confirmation Emplacement Drift Monitoring System (PCM); and (12) Backfill Emplacement System (BES).

T. Wilson; R. Novotny

1999-11-22

225

Weapons Systems Development Decision Support System.  

National Technical Information Service (NTIS)

Defense budget cuts and the recent peace dividend have made weapons systems development decisions increasingly more difficult and subject to scrutiny. Meticulous planning is required to ensure tax dollars are spent wisely and effectively. This thesis pres...

R. K. Boyd

1992-01-01

226

Power Systems Development Facility, PFBC system perspectives.  

National Technical Information Service (NTIS)

Southern Company Services (SCS) has investigated the feasibility of constructing a Power Systems Development Facility (PSDF) at the Southem Company's Clean Coal Research Center in Wilsonville, Alabama. The PSDF combines a number of pilot-scale test facili...

G. H. Griswold T. J. Boyd M. O. Fankhanel C. J. Crumm D. H. Pontius

1993-01-01

227

Power Systems Development Facility, PFBC system perspectives  

SciTech Connect

Southern Company Services (SCS) has investigated the feasibility of constructing a Power Systems Development Facility (PSDF) at the Southem Company`s Clean Coal Research Center in Wilsonville, Alabama. The PSDF combines a number of pilot-scale test facilities at a single site to reduce the overall capital and operating cost compared to individual stand-alone facilities, while continuing the DOE/METC`s objective of carrying out meaningful systems and component testing for advanced coal-based power generation development. The intent of the PSDF is to provide a flexible test facility that can be used to develop advanced power system components and assess the integration and control issues of these advanced power systems. The facility would provide a resource for rigorous, long-term testing and performance assessment of hot stream cleanup devices in an integrated environment, permitting evaluation of not only the cleanup devices but also other components in an integrated operation.

Griswold, G.H. [Southern Co. Services, Inc., Birmingham, AL (United States); Boyd, T.J. [Electric Power Research Inst., Palo Alto, CA (United States); Fankhanel, M.O. [Kellogg (M.W.) Co. (United States); Crumm, C.J. [Foster Wheeler Corp. (United States); Pontius, D.H. [SRI International, Menlo Park, CA (United States)

1993-09-01

228

Power system applications for PASC converter systems.  

National Technical Information Service (NTIS)

This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source level voltage converter system. The method can be applied to any single terminal pair source w...

M. K. Donnelly R. M. Johnson

1994-01-01

229

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

230

Operating system support for multimedia systems  

Microsoft Academic Search

Distributed multimedia applications will be an important part of tomorrow's application mix and require appropriate operating system (OS) support. Neither hard real-time solutions nor best-effort solutions are directly well suited for this s upport. One reason is the c o- existence of real-time and best effort requirements in future systems. Another reason is that the requirements of multimedia applications are

Thomas Plagemann; Vera Goebel; Pål Halvorsen; Otto J. Anshus

2000-01-01

231

General Curvilinear Coordinate Systems.  

National Technical Information Service (NTIS)

The basic ideas of the construction and use of numerically-generated boundary-fitted coordinate systems for the numerical solution of partial differential equations are discussed. With such coordinate systems, all computation can be done on a fixed square...

J. F. Thompson

1982-01-01

232

Switching System Simulator.  

National Technical Information Service (NTIS)

Switching System Simulator (SSS) is a CDC 6600 computer program which simulates and evaluates networks of interconnected switching elements. SSS determines all the possible ways in which a given switching system can complete a set of input/output connecti...

C. R. Williams

1976-01-01

233

Inertial Navigational Systems.  

National Technical Information Service (NTIS)

A semi-technical discussion is given of operating conditions, interaction of separate units and causes of errors of inertial guidance and navigational systems. Considerable attention is given to analysis of the operation of inertial systems under conditio...

V. S. Frolov

1964-01-01

234

Inductive System Health Monitoring.  

National Technical Information Service (NTIS)

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 ...

D. L. Iverson

2004-01-01

235

Heliostat Beam Characterization System.  

National Technical Information Service (NTIS)

The beam Characterization System utilizes video radiometer techniques to quantitatively describe the solar energy projected by a heliostat. This system is designed to evaluate prototype heliostats and to improve the performance of the Central Receiver Tes...

E. D. Thalhammer G. S. Phipps

1979-01-01

236

Avian respiratory system disorders  

USGS Publications Warehouse

Diagnosing and treating respiratory diseases in avian species requires a basic knowledge about the anatomy and physiology of this system in birds. Differences between mammalian and avian respiratory system function, diagnosis, and treatment are highlighted.

Olsen, G.H.

1989-01-01

237

Geocoded Imagery Production System.  

National Technical Information Service (NTIS)

Tne Environmental Research Institute of Michigan (ERIM) successfully designed, configured, implemented, documented, and tested a Geocoded Imagery Production System (GIPS) for the 480th Intelligence Group (IG), Langley Air Force Base, Virginia. The system ...

O. Mykolenko J. A. Sieffert

1996-01-01

238

Airborne Battle Management System.  

National Technical Information Service (NTIS)

The Navy under the Airborne Battle Management System (ABMS) program, sponsored by ONR Code 311 (Command, Control and Combat Systems) and executed by NAVAIR, is addressing the shifting focus of naval operations to power projection in a littoral environment...

G. Mersten

2000-01-01

239

Security Systems Division  

Center for Drug Evaluation (CDER)

Text Version3 Security Systems Division Security Systems Division ... the product has been handled by trusted supply chain partners? Optimized Security Solution ... More results from www.fda.gov/downloads/drugs/drugsafety

240

Chemical Thermal Desorption System.  

National Technical Information Service (NTIS)

A field portable chemical thermal desorption system. The system comprises a desorption tube, an injection needle operatively connected to the desorption tube, a needle valve operatively connected to the injection needle, a heater operatively connected to ...

A. Alcaraz C. Koester J. D. Eckels

2004-01-01

241

Operations Management System.  

National Technical Information Service (NTIS)

The objective of an operations management system is to provide an orderly and efficient method to operate and maintain aerospace vehicles. Concepts are described for an operations management system and the key technologies are highlighted which will be re...

A. E. Brandli R. E. Eckelkamp C. M. Kelly W. Mccandless D. L. Rue

1990-01-01

242

Emergency Cooling System Flows.  

National Technical Information Service (NTIS)

Calculations of emergency cooling system (ECS) flows are required to complete the Flood Code documentation and validation. Only minimum ECS flows are required input to the FLOOD code for system safety analysis. ECS flows have not been documented since the...

J. H. Hinton

1985-01-01

243

Hydrographic Winch System.  

National Technical Information Service (NTIS)

This report contains a complete physical and operational description of a hydrographic winch system developed at NOTS. Significant design features and operational parameters of the winch are given; the functions of the components of the system are discuss...

R. Hearn

1967-01-01

244

Autonomous Flight Safety System.  

National Technical Information Service (NTIS)

Autonomous Flight Safety System (AFSS) is an independent flight safety system designed for small to medium sized expendable launch vehicles launching from or needing range safety protection while overlying relatively remote locations. AFSS replaces the ne...

B. Bull B. Ferrell J. Lanzi J. Simpson R. Zoerner S. Santuro

2004-01-01

245

CACTUS: System Documentation.  

National Technical Information Service (NTIS)

Systems documentation is provided for the Client Action, Characteristics, Tracking and Record Updating System (CACTUS), which was transferred from Kansas City, Missouri, to assist managers and planners of youth service programs in Los Angeles County, Cali...

1975-01-01

246

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

247

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 ... t, to find and destroy them. If your immune system cannot do its job, the results can be ...

248

Pneumonia - weakened immune system  

MedlinePLUS

... to fight infection is greatly reduced because their immune system is weakened and not working properly. Such disease ... People whose immune system is not working well are less able to fight off germs. Because of this state, they are more ...

249

Our Immune System  

MedlinePLUS

... story for children with primary immunodeficiency diseases Our Immune System Our Immune IMMUNE DEFICIENCY FOUNDATION A note from ... who are immune deficient to better understand their immune system. What is a “B-cell,” a “T-cell,” ...

250

Python Microgravity Accelerometer System.  

National Technical Information Service (NTIS)

Scientists performing experiments in the unique microgravity environment of space frequently require an accurate and useful view of the acceleration at their experiment. Payload Systems has developed a Microgravity Accelerometer System for use in the Spac...

V. Nijhawan A. P. Arrott

1988-01-01

251

Unmanned Systems Interoperability.  

National Technical Information Service (NTIS)

Mission: Lead the development, systems engineering, integration, acquisition, testing, fielding, sustainment and improvement of unmanned systems for the Joint Warfighter to ensure safe, effective and supportable capabilities are provided while meeting cos...

C. Smith

2010-01-01

252

Flight Control Systems Research.  

National Technical Information Service (NTIS)

Theoretical development is reported for the parameter optimization design technique needed for digital flight control system design. The results of an example case study applying the optimization technique for continuous systems to an F-8 aircraft feedbac...

H. P. Whitaker Y. Baram Y. Cheng

1973-01-01

253

Computer system administrator  

NSDL National Science Digital Library

Teachers can direct students to this material to help them investigate a career as a computer systems analyst, particularly as a computer systems administrator. Having students review this page can be an excellent precursor to a job-shadowing activity.

Project, Iowa P.

2002-01-01

254

UNIFORM DATA SYSTEM (UDS)  

EPA Science Inventory

This data collection system collects uniformly-defined information for the major BPHC grant programs. The system yields consistent information on patient characteristics and clinical conditions. The UDS provides data on services, site locations, delivery methods, staffing, client...

255

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

256

Geographic Information Systems, 1990.  

National Technical Information Service (NTIS)

Contents: Potential for geographic information systems in transportation planning and highway infrastructure management; Using geographic information system technology to enhance the pavement management process; Pavement management applications of GIS: A ...

N. C. Kassabian A. G. Tobias L. Caryton K. Solomon N. Solomon

1990-01-01

257

Microelectronics Bioinstrumentation Systems.  

National Technical Information Service (NTIS)

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...

W. H. Ko

1977-01-01

258

Microelectronic Bioinstrumentation System.  

National Technical Information Service (NTIS)

The progess made from April 1973 to June 1974 on a microelectronics bioinstrumentation system is reported and includes data for the following three individual projects: (1) a radio frequency powered implant telemetry system; (2) an ingestible temperature ...

W. H. Ko E. T. Yon R. J. Rodriguez

1974-01-01

259

Shaping Educational Accountability Systems.  

ERIC Educational Resources Information Center

Discusses shaping educational accountability systems in the context of the No Child Left Behind Act of 2001. Suggests ways in which evaluation can contribute to improving and changing accountability systems, especially through the development of standards. (SLD)

Ryan, Katherine

2002-01-01

260

Johnson Transformation System Revisited.  

National Technical Information Service (NTIS)

Some results on the Johnson transformation system are obtained which can enhance applications of this system in multivariate Monte Carlo studies. The primary contribution is that the mean vector and the covariance matrix in the transformed population can ...

M. E. Johnson J. S. Ramberg

1977-01-01

261

FTD Edit System.  

National Technical Information Service (NTIS)

A 16-terminal, interactive, text processing system is described. The system was designed for post processing of computer translated Russian scientific and technical literature. Sophisticated word processing software is supported on 5 minicomputers organiz...

R. Case L. Berglund

1976-01-01

262

Implantable Insulin Delivery System.  

National Technical Information Service (NTIS)

An insulin delivery system suitable for experimental implants and external use has been developed to study glucose control for diabetics. The programmable system developed at Sandia National Laboratories, in conjunction with the University of New Mexico S...

J. T. Love J. I. Gaona

1981-01-01

263

Developing Expert Systems.  

National Technical Information Service (NTIS)

The document provides a set of general guidelines for the development and distribution of highway related expert systems. This expands the guidelines provided in Chapter X, Expert Systems, of the ADP Management Manual. Included is information on developin...

D. Barnett C. Jackson J. A. Wentworth

1988-01-01

264

Clandestine Communication Systems.  

National Technical Information Service (NTIS)

Subversive elements, whether insurgent, terrorist, or criminal, all require a communication system to coordinate and control operations. The development of a clandestine communication system requires special considerations in the development of the nodes ...

J. T. COrley

2001-01-01

265

Integrated Library System (ILS).  

National Technical Information Service (NTIS)

The Integrated Library System (ILS) is a minicomputer-based library automation system designed to support a full range of technical processing and retrieval activities using a single master bibliographic file, (MBF). Current subsystems include: Bibliograp...

C. M. Goldstein R. Borochoff

1981-01-01

266

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

267

LIGHTWEIGHT GREEN ROOF SYSTEMS  

EPA Science Inventory

Applying a Lightweight Green Roof System to a building can achieve in managing storm water runoff, decreasing heat gain, yielding energy savings, and mitigating the heat island effect. Currently, Most green roof systems are considerably heavy and require structural reinforceme...

268

Systems Theory and Astrobiology  

NASA Astrophysics Data System (ADS)

The breadth and topics of astrobiology provide a testing ground for exploring systems concepts. Currently astrobiology to deal with the question "What is life?" Systems thinking offers a way of breaking out of our mental box.

Woolf, N., J.

2010-04-01

269

Central nervous system  

MedlinePLUS

The central nervous system is composed of the brain and spinal cord. Your brain and spinal cord serve as the main "processing center" for the entire nervous system, and control all the workings of your body.

270

Information Materials Adaptive Systems.  

National Technical Information Service (NTIS)

The report includes the realization of adaptive control algorithms, elements of adaptive control systems, self-adjusting control systems for an aeroelastic aircraft, adaptive control of flight vehicle roll, flight vehicle control during atmospheric reentr...

1972-01-01

271

Intra-Spin System  

Center for Biologics Evaluation and Research (CBER)

... Intra-Spin System. Applicant: Intra-Lock International, Boca Raton, FL 33487. 510(k) number: BK120048. Product: Intra-Spin System. ... More results from www.fda.gov/biologicsbloodvaccines/bloodbloodproducts/approvedproducts

272

Urban Information System.  

National Technical Information Service (NTIS)

The development and operation of a computer-based human services information system in Chattanooga, Tennessee are documented in a technically oriented report. The Chattanooga Human Services Information System is designed to provide direct service agencies...

1973-01-01

273

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

274

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

275

Secondary power systems  

SciTech Connect

In aeronautical engineering secondary power systems have long played second fiddle to the airframe, the engine, and indeed, the avionics. This collection of papers is thus timely, and its publication by the Institution of Mechanical Engineers appropriate, as secondary power systems in modern aircraft present challenging mechanical engineering problems. In military aircraft demands for electrical and hydraulic power and high pressure air have grown over the past two decades. To these basic needs are added requirements for emergency power, ground power, and independent engine starting. Additionally increased reliability and maintainability is demanded from all secondary power systems. Complete contents: What is a secondary power system. Modern technology secondary power systems for next generation military aircraft; Integrated power units; Secondary power system gearbox; Starting the system - air turbine starters; Auxiliary and emergency power system; Secondary hydraulic power generation; Advanced technology electrical power generation equipment.

Not Available

1985-01-01

276

Recoil and Equilibrator Systems.  

National Technical Information Service (NTIS)

The pamphlet provides a general guide for the testing of recoil and equilibrator systems. Described are the arrival, prefiring, firing, post-firing and road tests to which the hydropneumatic and hydrospring recoil systems, and pneumatic, hydropneumatic an...

1966-01-01

277

Secure Distributed File Systems.  

National Technical Information Service (NTIS)

Secure information distribution is a strategic capability as significant as weapons systems and tactics to military operations. The Department of Defense has recognized the importance of establishing and maintaining secure distributed file systems and exp...

T. M. Conroy W. H. Buxton

1994-01-01

278

Decision Support Systems: Theory.  

National Technical Information Service (NTIS)

The purpose of this project was to research, collect, and evaluate all available information on Decision Support Systems (DSS) Theory. DSS are interactive, conversational computer systems supporting decision makers. DSS rely heavily on human intuition, ju...

J. J. Jarvis

1976-01-01

279

All Systems Are Go  

NSDL National Science Digital Library

Test your knowledge of the digestive, respiratory, and other human body systems in this interactive game from Kinetic City. Race the clock to put Arnold's organs back into his body one system at a time.

Foundation, Wgbh E.

2007-08-09

280

Systems engineering management plan  

SciTech Connect

The purpose of this Systems Engineering Management Plan (SEMP) is to prescribe the systems engineering procedures to be implemented at the Program level and the minimum requirements for systems engineering at the Program-element level. The Program level corresponds to the Director, OCRWM, or to the organizations within OCRWM to which the Director delegates responsibility for the development of the System and for coordinating and integrating the activities at the Program-element level. The Office of Policy and Outreach (OPO) and the Office of Resource Management (ORM) support the Director at the Program level. The Program-element level corresponds to the organizations within OCRWM (i.e., the Office of Geologic Repositories (OGR) and the Office of Storage and Transportation Systems (OSTS)) with overall responsibility for developing the System elements - that is, the mined geologic disposal system (MGDS), monitored retrievable storage (MRS) (if approved by Congress), and the transportation system.

Conner, C.W.

1985-10-01

281

Inflatable Aeroponic System.  

National Technical Information Service (NTIS)

Aeroponics Internationals (AI) innovation is a self-contained, self-supporting, flexible low mass aeroponic crop production unit with integral environmental systems for the control and delivery of a nutrient mist to the roots. This FLEX Aeroponic System m...

J. V. Pelt

2005-01-01

282

Health System Measurement Project  

MedlinePLUS

... U.S. Department of Health & Human Services Health System Measurement Project Search string Home Topical Areas Measures Data ... Sign out About the Project The Health System Measurement Project tracks government data on critical U.S. health ...

283

Systems Acquisition Strategies.  

National Technical Information Service (NTIS)

Notwithstanding determined efforts during the 1960s to improve major system acquisitions, the typical program exhibited an average cost growth of about 40%, a schedule slip of about 15%, and 30% or 40% system performance deviation from original specificat...

A. J. Harman G. K. Smith R. Perry S. Henrichsen

1971-01-01

284

Intelligent dynamic systems  

Microsoft Academic Search

This paper concerns a new class of systems that are, on the one hand, dynamic systems, and on the other, intelligent systems,\\u000a as their dynamics is described by knowledge representation, which is a common practice to use in intelligent systems, and\\u000a the states are described by parameters and variables that have a logical or linguistic character. The case is considered

G. S. Osipov

2010-01-01

285

Introducing Systems Approaches  

Microsoft Academic Search

\\u000a Systems Approaches to Managing Change brings together five systems approaches to managing complex issues, each having a proven\\u000a track record of over 25 years. The five approaches are: System Dynamics (SD) developed originally in the late 1950s by Jay\\u000a Forrester Viable Systems Model (VSM) developed originally in the late 1960s by Stafford Beer Strategic Options Development\\u000a and Analysis (SODA: with

Martin Reynolds; Sue Holwell

2010-01-01

286

Systems of Equations  

NSDL National Science Digital Library

This project is to help you practice solving systems of equations! Begin by playing a game of Jeopardy. This is for 2 players. You can select easy or hard problems for different point values. USE SCRATCH PAPER! Systems Jeopardy! Next, play some systems basketball. This is also for 2 players and again, you will need to USE SCRATCH PAPER! Systems Hoop Shoot These next 2 links are ...

Hbinggeli

2011-01-06

287

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

288

Visual Alert System  

NASA Astrophysics Data System (ADS)

A visual alert system resulted from circuitry developed by Applied Cybernetics Systems for Langley as part of a space related telemetry system. James Campman, Applied Cybernetics president, left the company and founded Grace Industries, Inc. to manufacture security devices based on the Langley technology. His visual alert system combines visual and audible alerts for hearing impaired people. The company also manufactures an arson detection device called the electronic nose, and is currently researching additional applications of the NASA technology.

1985-01-01

289

Our Solar System  

NSDL National Science Digital Library

Name and describe each of the planets, including the sun, in our solar system. 1. Use the organizer provided to record the information you collect. Click Solar System Organizer. 2. Now watch a short video about our solar system. As you watch the video, begin writing information you learn about the planets on your organizer. Click Solar System 101 for the video. 3. Next, watch the video with the ...

Tbeauchamp

2012-04-09

290

Versados (operating system)  

SciTech Connect

Versados is a multitasking operation system designed to meet the requirements of the real-time, online control system environment as well as to support the multiuser software-hardware engineering effort required to develop microprocessor based systems. Versados serves as a major software building block for real-time applications which use the Motorola MC68000 microprocessor and Versamodule board products. It is a modular, multilayered operating system.

Glaser, J.G.

1981-01-01

291

Generalized Stäckel systems  

NASA Astrophysics Data System (ADS)

We consider the generalized Stäckel systems, the broadest class of integrable Hamiltonian systems that admit separation of variables and possess separation relations affine in the Hamiltonians. For these systems we construct in a systematic fashion hierarchies of basic separable potentials. Moreover, we show how the equations of motion for the systems under study are related through appropriately chosen reciprocal transformations and how the respective constants of motion are related through generalized Stäckel transforms.

B?aszak, Maciej; Sergyeyev, Artur

2011-07-01

292

Indistinguishability of Random Systems  

Microsoft Academic Search

An (X;Y)-random system takes inputs X1;X2;:::2X and generates, for each new input Xi, an output Yi 2 Y, depending proba- bilistically on X1;:::;Xi and Y1;:::;Yi¡1. Many cryptographic systems like block ciphers, MAC-schemes, pseudo-random functions, etc., can be modeled as random systems, where in fact Yi often depends only on Xi, i.e., the system is stateless. The security proof of such

Ueli M. Maurer

2002-01-01

293

Systems with Lebesgue Sampling  

Microsoft Academic Search

Sampling is normally done periodically in time. For linear time invariant systems this leads to closed loop systems that linear\\u000a and periodic. Many properties can be investigated by considering the behavior of the systems at times that are synchronized\\u000a with the sampling instants. This leads to drastic simplifications because the systems can be described by difference equations\\u000a with constant coefficients.

Karl Åström; Bo Bernhardsson

294

Anidolic daylighting systems  

Microsoft Academic Search

Non-imaging optics, well known for its application to solar concentrators, was used to set up novel daylighting systems that aim at an efficient collection and redistribution of the diffuse component of daylight. These devices, called anidolic systems (an: without, eidolon: image), were designed, installed and monitored on experimental test modules under clear and overcast sky conditions. Three different anidolic systems

Jean-Louis Scartezzini; Gilles Courret

2002-01-01

295

Lincoln Training System.  

National Technical Information Service (NTIS)

LTS (Lincoln Training System) is an automated training system that has been designed to meet the need for individualized, self-paced learning outside of as well as within a conventional classroom environment. The system employs microfiche as the basic med...

D. Karp F. C. Frick J. R. Brown L. M. Goodman W. P. Harris

1973-01-01

296

Inductive System Health Monitoring  

Microsoft Academic Search

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

David L. Iverson

2004-01-01

297

Clinical Data Management System  

Microsoft Academic Search

Reference clinical data interchange standards defined by CDISC (Clinical Data Interchange Standards Consortium), we developed clinical data management system with distributed system architecture which can be executed on different platforms for high performance. This system consists mainly of study management module, data capture module, data management module and security module. Besides, web-based approach changes the traditional client\\/server design pattern for

Lingli Fu; Sheng Ding; Tao Chen

2010-01-01

298

Mars transportation system synthesis  

Microsoft Academic Search

Performance and requirements synthesized to support the manned Mars mission of the Space Exploration Initiative (SEI) are presented. Emphasis is placed on the Mars transportation system (MTS), which uses nuclear thermal rocket (NTR) propulsion technology associated with accomplishing the manned Mars mission. Data are also presented for a propulsion system options comparison of chemical\\/aerobrake and nuclear electric propulsion systems. Vehicle-

Archie C. Young; John A. Mulqueen; William J. Emrich

1992-01-01

299

Training Management Information System  

Microsoft Academic Search

The Training Management Information System (TMIS) is an integrated information system for all training related activities. TMIS is at the leading edge of training information systems used in the nuclear industry. The database contains all the necessary records to confirm the department's adherence to accreditation criteria and houses all test questions, student records and information needed to evaluate the training

Rackley

1989-01-01

300

Ocean engineering power systems  

Microsoft Academic Search

The text presents basic thermodynamic principles and engineering considerations for ocean power systems. A survey chapter introduces a wide range of applications of power systems in the oceans. Thermodynamic principles and engine cycles are extensively reviewed in the next chapter. Then, chapters on energy sources, thermal power plants, and engineering of specific types of ocean systems are presented. Engineering principles

Carmichael

1974-01-01

301

Dynamics of Multibody Systems  

Microsoft Academic Search

Dynamics of Multibody Systems introduces multibody dynamics, with an emphasis on flexible body dynamics. Many common mechanisms such as automobiles, space structures, robots, and micro machines have mechanical and structural systems that consist of interconnected rigid and deformable components. The dynamics of these large-scale, multibody systems are highly nonlinear, presenting complex problems that in most cases can only be solved

Ahmed A. Shabana

2005-01-01

302

Digital Synchronous Control System.  

National Technical Information Service (NTIS)

A digital synchronous follow-up system is described, which can be used in high-precision rate stabilization systems. The system consists of two angle-pulse transducers (APT), logic module, which functions as a specialized computing and compensating device...

V. N. Govorun V. I. In'shakov A. P. Leonov V. V. Popov V. V. Skvortsov

1983-01-01

303

Acoustic Accident Detection System  

Microsoft Academic Search

In this research we considered the development of a system for automatically detecting and reporting traffic accidents at intersections. A system with these properties would be a great benefit in determining the cause of accidents and could also be useful in determining features of the intersection that relate to safety. A complete system would automatically detect and record traffic conditions

Charles Harlow; Yu Wang

2002-01-01

304

Power system restoration issues  

Microsoft Academic Search

Some of the problems encountered in the three phases of power system restoration (PSR) are described. The three phases are planning for restart and reintegration of the bulk power supply, actions during system degradations for saving and retaining critical sources of power, and restoration when the power system has stabilized at some degraded level. Common concerns found in several PSR

M. M. Adibi; R. J. Kafka

1991-01-01

305

NPOx Decontamination System  

SciTech Connect

The nitric acid/potassium permanganate/oxalic acid (NPOx) Phase II system is being prepared for remote operation at the Idaho National Engineering and Environmental Laboratory (INEEL). Several tests have been conducted to prepare the system for remote operation. This system performs very well with high decontamination efficiencies and very low quantities of waste generated during decontamination.

Archibald, K.; Demmer, R.; Argyle, M.; Ancho, M.; Hai-Pao, J.

2002-02-25

306

Evaluating Recommender Systems  

Microsoft Academic Search

Recommender systems are considered as an answer to the information overload in a Web environment. Such systems recommend items (movies, music, books, news, web pages, etc.) that the user should be interested in. Collaborative filtering recommender systems have a huge success in commercial applications. The sales in these applications follow a power law distribution. However, with the increase of the

Zied Zaier; Robert Godin; Luc Faucher

2008-01-01

307

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.

308

Solar systems maintenance  

SciTech Connect

This article examines several hundred solar systems, especially those in the HUD Solar Residential Demonstration Program, in order to show that solar energy systems have all the maintenance requirements of non-solar HVAC systems, as well as additional ones peculiar to solar systems. The additional maintenance requirements occur because of the special features in solar systems, such as the collector panels, the conditions to which the heat-transfer fluid can be subjected, and the special corrosion problems. It is concluded that the simplest systems are the easiest to maintain; regular inspection and maintenance of a solar system can help prevent major expenses for repair and replacement; the ease of maintenance should be a factor considered during design and installation of a solar system; it is important to include adequate measuring instruments in a solar system, especially thermometers, flowmeters, and pressure gages; in liquid-based solar systems, the major cause of problems is corrosion which requires special attention; in air solar systems, the main problem is air leakage, which is not easily detected directly and generally shows itself in terms of poor performance; and site-built and site-assembled solar collectors are generally high-maintenance parts of a solar system and should be inspected regularly.

Dubin, F.S.; Raman, K.

1983-12-01

309

Rapid response deluge system  

NASA Astrophysics Data System (ADS)

The development of a rapid response deluge system by the Ammunition Equipment Directorate (AED) for use in suppressing propellant fires during demilitarization shows great promise. Prototype systems have been tested and data acquired on their efficiencies. Present system vs previous generations and lessons learned are discussed.

Mille, J. R.

1984-08-01

310

Fuzzy systems vegetation theory  

Microsoft Academic Search

Fuzzy systems vegetation theory is a comprehensive framework for the expression of vegetation theory and conceptual models, as well as the development of vegetation analyses. It is applicable to vegetation\\/environment relations, vegetation dynamics, and the effects of environmental dynamics on vegetation composition. Fuzzy systems vegetation theory is a fuzzy set generalization of dynamical systems theory and incorporates a formal logic

David W. Roberts

1989-01-01

311

Instructional System Development.  

ERIC Educational Resources Information Center

The manual presents a technology of instructional design and a model for developing and conducting efficient and cost effective Air Force instructional systems. Chapter 1 provides an overview of Instructional System Development (ISD). Chapters 2-6 each focus on a step of the process: analysis of system requirements; definition of…

Department of the Air Force, Washington, DC.

312

Unified Science - System.  

ERIC Educational Resources Information Center

The goals of this curriculum, developed as a summer course for the Young Scholars Program at The Ohio State University-Columbus, are as follows: (1) enable students to develop an understanding of the concept of a system; (2) help students gain an appreciation of the value of systems; (3) develop skills in working with systems; (4) expand skills in…

Thomson, Barbara S.

313

Classification of agroforestry systems  

Microsoft Academic Search

Classification of agroforestry (AF) systems is necessary in order to provide a framework for evaluating systems and developing action plans for their improvement. The AF Systems Inventory (AFSI) being undertaken by ICRAF provides the background information for an approach to classification.

P. K. R. Nair

1985-01-01

314

Wabtec ECP system update  

Microsoft Academic Search

Wabtec Railway Electronics installed an electronically controlled pneumatic (ECP) brake system on Southern Company owned coal cars, operated on CSX, with GE AC4400 locomotives in November, 2000. This is the first US installation of ECP systems in accordance with AAR S-4200 series of specifications, which also uses the echelon PLT-22 power line transceiver. The ECP system as installed is described,

R. C. Kull

2001-01-01

315

Distributed computer control systems  

Microsoft Academic Search

This book focuses on recent advances in the theory, applications and techniques for distributed computer control systems. Contents (partial): Real-time distributed computer control in a flexible manufacturing system. Semantics and implementation problems of channels in a DCCS specification. Broadcast protocols in distributed computer control systems. Design considerations of distributed control architecture for a thermal power plant. The conic toolset for

Suski

1986-01-01

316

Engineering Secure Software Systems  

Microsoft Academic Search

Is there such a thing anymore as a software system that doesn't need to be secure? Almost every software- controlled system faces threats from potential adversaries, from Internet-aware client applications running on PCs, to complex telecommunications and power systems accessible over the Internet, to commodity software with copy protec- tion mechanisms. Software engineers must be cognizant of these threats and

Premkumar T. Devanbu; Stuart G. Stubblebine

317

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

318

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.

319

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

320

Automated Legislative Information Systems  

Microsoft Academic Search

Over the past fifty years the American legal system has changed from a system dominated by case law to a system dominated by legislation. The expanding role that legislation has assumed is apparent, not only by the scholarly commentary precipitated by this change, but also by the new legislative research tools which have become commonplace in many law libraries. Well-established

S Blair Kauffman

1983-01-01

321

Carbon Dioxide Reduction System.  

National Technical Information Service (NTIS)

An automatically operated carbon dioxide reduction system was developed, fabricated and tested. The system was designed to reduce the carbon dioxide equivalent to that produced by one man, and to produce carbon and oxygen. A system such as this is require...

H. Chandler

1964-01-01

322

Irrigation Systems Operation  

Technology Transfer Automated Retrieval System (TEKTRAN)

Effective operation of an irrigation system requires matching the operational characteristics of a system to the soil, crop, field, and water supply. Each of these components will affect the quality of the irrigation system performance. The performance measures used to characterize the irrigation sy...

323

Location Systems: ARGOS, SARSAT.  

National Technical Information Service (NTIS)

The ARGOS location system is described. The SARSAT search and rescue system, in which France, the U.S., and Canada are partners, is described. The choices made during the development phase of the systems are presented. The effects of these choices on the ...

G. Portas

1989-01-01

324

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.

325

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

326

Optimum Cassegrain baffle systems.  

PubMed

Formulas are developed for the precise calculation of optimum stray-light baffles for Cassegrain optical systems, including systems having extreme optical curvatures such as those in infrared missile guidance systems. Minimum diffraction and maximum optical efficiency are the primary considerations. PMID:20733716

Hales, W L

1992-09-01

327

Advanced bridge management systems  

Microsoft Academic Search

In this paper, development of advanced bridge management systems is discussed, with special emphasis on reinforced concrete bridges. Management systems for prestressed concrete bridges, steel bridges, or composite bridges can be developed in a similar way. The proposed procedures are illustrated by the EU-supported management systems BRIDGE1 and BRIDGE2. The paper is strongly based on reports produced within the EU

P. Thoft-Christensen

1995-01-01

328

Microelectronics bioinstrumentation systems  

Microsoft Academic Search

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.

W. H. Ko

1977-01-01

329

A system simulation framework  

Microsoft Academic Search

A generic framework is described that supports the design and simulation of complex systems. The simulation framework incorporates a CAD Framework that has been extended with high-level services for visualizing and exploring system performance. The simulation framework is used in a number of industrial environments for the development and optimization of VLSI designs, electro-optical systems, Cathode Ray Tubes, and a

Peter van den Hamer; W. P. M. van der Linden; Peter Bingley; N. W. Schellingerhout

2000-01-01

330

Hig accelerator system  

Microsoft Academic Search

The design criteria and operational capabilities of the Hi-g accelerator system, a pneumatically operated device are described. The system was designed to accelerate an experiment package up the experimental tube of the Sandia Annular Core Pulse Reactor. A variety of experimental sizes can be accommodated by the system and a wide range of acceleration levels is possible.

J. P. Atencio

1976-01-01

331

Seafloor Mapping System.  

National Technical Information Service (NTIS)

The patent application relates generally to seafloor mapping systems and more particularly to such systems generating a stereo-film of the seafloor topography. The sea floor mapping system uses echo signals from a pair of towed, side-looking sonar transdu...

R. O. Hitchcock

1975-01-01

332

Embedded system design  

Microsoft Academic Search

In the past decade the main engine of electronic design automation has been the widespread application of ASICs (Application Specific Integrated Circuits). Present technology supports complete systems on a chip, most often used as so-called embedded systems in an increasing number of applications. Embedded systems pose new design challenges which we believe will be the driving forces of design automation

Raul Camposano; Jörg Wilberg

1996-01-01

333

Modular intelligent sensor system  

SciTech Connect

This paper describes a sensor system architecture suitable for application in systems intended for battery powered unattended use. The modularity concept addresses the logical interconnects between modules, the electrical interconnects between modules, and a system for the generalization of data to permit modular processing.

Fuess, D.A.

1993-06-17

334

Monitoring distributed systems  

Microsoft Academic Search

The monitoring of distributed systems involves the collection, interpretation, and display of information concerning the interactions among concurrently executing processes. This information and its display can support the debugging, testing, performance evaluation, and dynamic documentation of distributed systems. General problems associated with monitoring are outlined in this paper, and the architecture of a general purpose, extensible, distributed monitoring system is

Jeffrey Joyce; Greg Lomow; Konrad Slind; Brian Unger

1987-01-01

335

Modeling AGV systems  

Microsoft Academic Search

Computer simulation is often used as an analysis tool during the design of Automated Guided Vehicle (AGV) systems. However, because of the complexities inherent in automated material handling systems, general-purpose simulation languages must be used creatively to capture the desired detail in the model. This paper presents some general concepts which can be used to model AGV systems. Also, some

Deborah A. Davis; Calder Sq

1986-01-01

336

Acoustic Control System  

Microsoft Academic Search

This paper describes some features of an acoustic control system. It is designed primarily for acoustic control of blow out preventers and subsea production units. The system is combined with a super short baseline acoustic navigation system. The communication between the central unit and the subsea unit to be controlled is 2-way. The communication from the subsea unit is used

H. Jacobsen; K. Vestgard; F. Knudsen

1982-01-01

337

The ITER vacuum systems  

Microsoft Academic Search

ITER is a large vacuum facility which comprises many service, diagnostic and monitoring vacuum sub-systems as well as three large cryogenic pumping systems for evacuation and maintenance of the required pressure levels. Control of the gas throughput is one of the key issues affecting the performance and achievable burn time of a fusion reactor. The main pumping systems are the

C. Day; D. Murdoch

2008-01-01

338

The Drach superintegrable systems  

NASA Astrophysics Data System (ADS)

Two-dimensional degenerate Hamiltonian systems with cubic invariants are considered using the separation of variables method. For the superintegrable Stäckel systems the cubic invariant is rewritten in the new algebro-geometric form, that is far more elementary than the all the known representations. A complete list of all known systems on the plane that admit a cubic invariant is discussed.

Tsiganov, A. V.

2000-10-01

339

Subsea well completion system  

Microsoft Academic Search

A subsea well completion system, and components of such a system, are disclosed for handling marine well fluids from multiple subsea wells. The system includes a fluid-tight work enclosure hull containing manifold means, the hull having a plurality of radially-disposed lateral penetration means extending therethrough, the penetration means being operatively connected to the manifold means; and a base template having

J. R. Padilla; A. T. Chatas; E. M. Richardson

1984-01-01

340

Mudline subsea wellhead system  

Microsoft Academic Search

In a subsea wellhead system, an improved means is described for allowing the well to be drilled with a mudline suspension system and completed with a subsea pressure control system, comprising in combination: an outer wellhead housing for location on a subsea floor, having a lower end adapted to be secured to a conductor pipe extending into the well; conductor

L. J. Milberger; E. E. Thames

1993-01-01

341

NSTX electrical power systems  

Microsoft Academic Search

The National Spherical Torus Experiment (NSTX) has been designed and installed in the existing facilities at Princeton Plasma Physics Laboratory (PPPL). Most of the hardware, plant facilities, auxiliary sub-systems, and power systems originally used for the Tokamak Fusion Test Reactor (TFTR) have been used with suitable modifications to reflect NSTX needs. The design of the NSTX electrical power system was

S. Ramakrishnan; C. Neumeyer; R. Hatcher; E. Baker; H. Schneider; W. Reiersen; A. von Halle

1999-01-01

342

Distributed operating systems  

Microsoft Academic Search

Distributed operating systems have many aspects in common with centralized ones, but they also differ in certain ways. This paper is intended as an introduction to distributed operating systems, and especially to current university research about them. After a discussion of what constitutes a distributed operating system and how it is distinguished from a computer network, various key design issues

Andrew S. Tanenbaum; Robbert Van Renesse

1985-01-01

343

Center for Systems Engineering  

Microsoft Academic Search

Systems Engineering (SE) is an interdisciplinary engineering management process that evolves and verifies an integrated, life cycle balanced set of system solutions that satisfy customer needs. It is comprehensive, iterative, multi-functional, technical management process that includes translating operational requirements into configured systems. It is responsible for integrating the technical inputs of the entire design team, managing interfaces, characterizing and managing

K. Bausman; M. Wilson

2003-01-01

344

Batterie fuellungs systeme gmbh  

SciTech Connect

Batteries Fullings Systems gmbh, or BFS, located in Munich, manufactures and supplies an automatic filling system for all types of traction and stationary batteries that feed from a single source of water. Operation of the system and various options and applications are briefly discussed.

Not Available

1993-05-01

345

HCI and security systems  

Microsoft Academic Search

This workshop will seek to understand the roles and demands placed on users of security systems, and explore design solutions that can assist in making security systems usable and effective. In addition to examining end-users, this workshop will also examine the issues faced by security system developers and operators. The goal of the workshop is to build a network of

Andrew S. Patrick; A. Chris Long; Scott Flinn

2003-01-01

346

The Texas Formula System.  

ERIC Educational Resources Information Center

|Explained and illustrated is the formula funding system used for colleges and universities in Texas. This system is considerably more complicated than the formulas used in other states. Data for institutions in the state system for fiscal 1978 are presented; actual appropriations are used rather than requests, and formula-produced amounts are…

Steen, Ralph W.; And Others

347

Welcome Home, Systems Chemists!  

Microsoft Academic Search

It is our utmost pleasure to launch the Journal of Systems Chemistry. What systems chemistry exactly is will be known in a few years from now when one is able to sketch the scope and vision of the field also based on upcoming contributions to our journal. How systems chemistry came up is more easy to tell. In this editorial

Günter von Kiedrowski; Sijbren Otto; Piet Herdewijn

2010-01-01

348

Advanced Manned Launch System  

Microsoft Academic Search

Several alternatives exist for the development of the next manned launch system. The Advanced Manned Launch System (AMLS), which represents a clean-sheet replacement for the Space Shuttle, faces competition from concepts such as (1) the Personnel Launch System, which would serve as a personnel transport to complement the Space Shuttle, and (2) an advanced version of the existing Space Shuttle.

Theodore A. Talay

1993-01-01

349

IRON file systems  

Microsoft Academic Search

Commodity file systems trust disks to either work or fail completely, yet modern disks exhibit more complex failure modes. We suggest a new file system, Linux ixt3, showing that techniques such as in-disk checksumming, replication, and parity greatly enhance file system robustness while incurring minimal time and space overheads.

Vijayan Prabhakaran; Lakshmi N. Bairavasundaram; Nitin Agrawal; Haryadi S. Gunawi; Andrea C. Arpaci-Dusseau; Remzi H. Arpaci-Dusseau

2005-01-01

350

LCLS Undulator Coordinate System  

SciTech Connect

This note defines the LCLS undulator coordinate system and relates that coordinate system to the linear accelerator coordinate system. The slight downward pitch of the SLAC linac and the finite radius of the Earth necessitate some choices and definitions for the undulator layout which is described here. The layout described is consistent with the LCLS optics MAD file ''LCLS13APR04''.

Bong, E.

2005-01-31

351

The Open Systems University.  

ERIC Educational Resources Information Center

The purpose of this paper is focused toward a systems understanding of the contemporary university, the American University being the data base. A general systems conceptualization called the open systems university is presented. Comprehensive and generic in character, it is hoped that the theory of the open university will be viable enough to…

Counelis, James Steve

352

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

353

Adsorption Refrigeration System  

Microsoft Academic Search

Adsorption refrigeration is an environmentally friendly cooling technology which could be driven by recovered waste heat or low-grade heat such as solar energy. In comparison with absorption system, an adsorption system has no problems such as corrosion at high temperature and salt crystallization. In comparison with vapor compression refrigeration system, it has the advantages of simple control, no moving parts

Kai Wang; Edward Allan Vineyard

2011-01-01

354

Adaptive decision support systems  

Microsoft Academic Search

The effectiveness of decision support systems (DSS) is enhanced through dynamic adaptation of support to the needs of the decision maker, to the problem, and to the decision context. We define this enhanced DSS as adaptive decision support systems (ADSS) and propose its architecture. In an ADSS, the decision maker controls the decision process. However, the system monitors the process

Bijan Fazlollahi; Mihir A. Parikh; Sameer Verma

1997-01-01

355

Reference Expert Systems  

Microsoft Academic Search

The delivery of library reference service can be practically supplemented through the appropriate incorporation and use of software tools commonly referred to as expert systems. The level of support such systems can afford the reference service organization is dependent on the degree of complexity characteristic of the rule-based programming techniques used to develop a particular system and the size of

Dana E. Smith

1989-01-01

356

INTELLIGENT SYSTEMS GROUP (ISG)  

Microsoft Academic Search

The Intelligent Systems Group's (ISG) mission is to carry out long-term research on novel technologies and applications of intelligent systems. The main ob- jective is to develop enhanced adaptivity and context- awareness for smart environments. The research specifically focuses on the creation of dynamic mod- els that enable monitoring, diagnostics, prediction and control of target systems (living and artificial) or

Juha Röning; Jukka Riekki; Tapio Seppänen

357

External System Modeling  

Microsoft Academic Search

In this thesis a novel design strategy is presented. The key elements of the design strategy comprise the modeling of the physical sources, the separation of the system into the design component and the external system, the characterization of the external system as a complex source, and finally the use of the complex source\\/design component model to optimize the performance

Bryce Kevin Gardner

1995-01-01

358

Intelligent Hub Access System  

Microsoft Academic Search

A means for high capacity communication between commanders and soldiers in the field is required. The system should be low cost, rapidly deployable, compact, and provide the ability to transmit and receive high resolution video, video-teleconference (VTC), digital maps and command and control information. A system called the Intelligent Hub Access System (IHAS) is described to suit this requirement. The

S. Thompson

2000-01-01

359

The ALHAMBRA Photometric System  

Microsoft Academic Search

This paper presents the characterization of the optical range of the ALHAMBRA photometric system, a 20 contiguous, equal-width, medium-band CCD system with wavelength coverage from 3500 Å to 9700 Å. The photometric description of the system is done by presenting the full response curve as a product of the filters, CCD, and atmospheric transmission curves, and using some first- and

T. Aparicio Villegas; E. J. Alfaro; J. Cabrera-Caño; M. Moles; N. Benítez; J. Perea; A. del Olmo; A. Fernández-Soto; D. Cristóbal-Hornillos; C. Husillos; J. A. L. Aguerri; T. Broadhurst; F. J. Castander; J. Cepa; M. Cerviño; R. M. González Delgado; L. Infante; I. Márquez; J. Masegosa; V. J. Martínez; F. Prada; J. M. Quintana; S. F. Sánchez

2010-01-01

360

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

361

Expert systems in business  

SciTech Connect

Recent developments in expert systems point toward success for this technology in business environments. Expert systems employ unique programming techniques to model expert decisions. The production system has thus far proved to be the best programming method for expert knowledge. Some expert systems have been verified as performing at an expert level, either scientifically or through field use. Some examples of behavioural variables found in a business environment are described. Executives who choose to ignore expert systems may find themselves at a competitive disadvantage within the next decade.

Michaelsen, R.; Michie, D.

1983-11-01

362

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

363

Integrable quantum Stäckel systems  

NASA Astrophysics Data System (ADS)

The Stäckel separability of a Hamiltonian system is well known to ensure existence of a complete set of Poisson commuting integrals of motion quadratic in the momenta. We consider a class of Stäckel separable systems where the entries of the Stäckel matrix are monomials in the separation variables. We show that the only systems in this class for which the integrals of motion arising from the Stäckel construction keep commuting after quantization are, up to natural equivalence transformations, the so-called Benenti systems. Moreover, it turns out that the latter are the only quantum separable systems in the class under study.

B?aszak, Maciej; Doma?ski, Ziemowit; Sergyeyev, Artur; Szablikowski, B?a?ej M.

2013-11-01

364

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

365

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

366

Massively parallel computing system  

DOEpatents

A parallel computing system and method having improved performance where a program is concurrently run on a plurality of nodes for reducing total processing time, each node having a processor, a memory, and a predetermined number of communication channels connected to the node and independently connected directly to other nodes. The present invention improves performance of the parallel computing system by providing a system which can provide efficient communication between the processors and between the system and input and output devices. A method is also disclosed which can locate defective nodes with the computing system.

Benner, R.E.; Gustafson, J.L.; Montry, G.R.

1989-03-01

367

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.

368

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

369

Systems Biology of Embryogenesis  

PubMed Central

The development of a complete organism from a single cell involves extraordinarily complex orchestration of biological processes that vary intricately across space and time. Systems biology seeks to describe how all elements of a biological system interact in order to understand, model, and ultimately predict aspects of emergent biological processes. Embryogenesis represents an extraordinary opportunity – and challenge – for the application of systems biology. Systems approaches have already been used successfully to study various aspects of development, from complex intracellular networks to 4D models of organogenesis. Going forward, great advancements and discoveries can be expected from systems approaches applied to embryogenesis and developmental biology.

Edelman, Lucas B.; Chandrasekaran, Sriram; Price, Nathan D.

2010-01-01

370

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.

Shimizu, Yukihiro

2008-01-01

371

Power Systems Control Architecture  

SciTech Connect

A diagram provided in the report depicts the complexity of the power systems control architecture used by the national power structure. It shows the structural hierarchy and the relationship of the each system to those other systems interconnected to it. Each of these levels provides a different focus for vulnerability testing and has its own weaknesses. In evaluating each level, of prime concern is what vulnerabilities exist that provide a path into the system, either to cause the system to malfunction or to take control of a field device. An additional vulnerability to consider is can the system be compromised in such a manner that the attacker can obtain critical information about the system and the portion of the national power structure that it controls.

James Davidson

2005-01-01

372

New stereoscopic system  

NASA Astrophysics Data System (ADS)

In this paper we present a new design for a 3D system implemented by using a special 3D Ring Lens instead of traditional lenses. The new system has the ability to capture the 3D information with the way that simplifies the necessary steps for 3D reconstruction. The new system capture two images for every point in the object field of the object field of the new systems with a fixed geometric constraint between the correspondence points. It is independent of any intrinsic parameter or extrinsic parameters like epi-polar geometry of traditional stereo system. A description of the main features of the new lens and the new systems will be discussed. The new system is suitable for many stereo applications such as disparity, depth/map estimation, 3D reconstruction and robotics applications such as vehicle navigation and object tracking.

Ahmed, Yasser A.; Afifi, Hossam

1999-05-01

373

Secure software distribution system  

SciTech Connect

Authenticating and upgrading system software plays a critical role in information security, yet practical tools for assessing and installing software are lacking in today`s marketplace. The Secure Software Distribution System (SSDS) will provide automated analysis, notification, distribution, and installation of security patches and related software to network-based computer systems in a vendor-independent fashion. SSDS will assist with the authentication of software by comparing the system`s objects with the patch`s objects. SSDS will monitor vendor`s patch sites to determine when new patches are released and will upgrade system software on target systems automatically. This paper describes the design of SSDS. Motivations behind the project, the advantages of SSDS over existing tools as well as the current status of the project are also discussed. 2 figs.

Bartoletti, T.; Dobbs, L.A.; Kelley, M.

1997-02-01

374

Forms order entry system  

US Patent & Trademark Office Database

An order entry system is provided comprising a first computer system, a printing station computer system, a form design repository, a second computer system, a validation engine, and a pricing engine. The first computer system captures form design data and the second computer generates a form price, validates the form, and transmits a validated and priced order to the printing station computer system. The second computer is also programmed to store an index of form design files in the form design repository. The forms order entry system is also programmed to determine manufacturability of an ordered form by comparing its form design data to a set of validation rules and route manufacturability exceptions to a selected one of a plurality of exception handling locations. The pricing engine determines identified labor, material, burden, and mark-up cost components, and applies a set of pricing rules to them, to enable calculation of a form price.

Morscheck; William F. (Franklin, OH); Miller; Kenneth W. (Tipp City, OH); Ryan; Thomas J. (Trotwood, OH); Ohlemacher; David M. (Dayton, OH); Russell; C. Thomas (Springboro, OH); Burgbacher; Mark A. (Mason, OH); Schweikert; Christopher L. (Cincinnati, OH)

2000-06-13

375

Introduction to expert systems  

SciTech Connect

Expert systems have become one of the most exciting applications within the domain of artificial intelligence. Further interest has been provoked by Japan's Fifth Generation Project, which identifies expert or knowledge-based systems as a key element in the computer systems of the future. This book presents an introduction to expert systems at a level suited to the undergraduate student and the interested layman. It surveys the three main techniques for knowledge representation - rules, frames and logic. and describes in detail the expert systems which employ them. Contents: Expert systems and artificial intelligence; Formalisms for knowledge representation; MYCIN; Medical diagnosis using rules. MYCIN derivatives; TEIRESIAS, EMYCIN, and GUIDON; RI: recognition as a problem-solving strategy; CENTAUR: a combination of frames metalevel inference and commonsense reasoning in MECHO; Tools for building expert systems; Summary and conclusions; Exercises.

Jackson, P.

1986-01-01

376

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

377

Information systems vulnerability: A systems analysis perspective  

SciTech Connect

Vulnerability analyses for information systems are complicated because the systems are often geographically distributed. Sandia National Laboratories has assembled an interdisciplinary team to explore the applicability of probabilistic logic modeling (PLM) techniques (including vulnerability and vital area analysis) to examine the risks associated with networked information systems. The authors have found that the reliability and failure modes of many network technologies can be effectively assessed using fault trees and other PLM methods. The results of these models are compatible with an expanded set of vital area analysis techniques that can model both physical locations and virtual (logical) locations to identify both categories of vital areas simultaneously. These results can also be used with optimization techniques to direct the analyst toward the most cost-effective security solution.

Wyss, G.D.; Daniel, S.L.; Schriner, H.K.; Gaylor, T.R.

1996-07-01

378

Hydrological system for a closed ecological system  

US Patent & Trademark Office Database

A method for establishing a hydrological cycle in a closed ecological system is disclosed. The hydrological cycle results in the establishment of a variety of different micro-environments which simulate micro-environments of Earth. The hydrological cycle further results in the establishment of a symbiotic interrelation of organisms in that are established within the different micro-environments, where the wastes generated by organisms of one micro-environment are removed by organisms of a second environment and are used as nutrients. This biological purification of the water maintains the purity and functionality of the water for continual use within the closed ecological system.

Hawes; Philip B. (Oracle, AZ); Augustine; Margret (Oracle, AZ)

1994-06-21

379

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

380

Observability of complex systems.  

PubMed

A quantitative description of a complex system is inherently limited by our ability to estimate the system's internal state from experimentally accessible outputs. Although the simultaneous measurement of all internal variables, like all metabolite concentrations in a cell, offers a complete description of a system's state, in practice experimental access is limited to only a subset of variables, or sensors. A system is called observable if we can reconstruct the system's complete internal state from its outputs. Here, we adopt a graphical approach derived from the dynamical laws that govern a system to determine the sensors that are necessary to reconstruct the full internal state of a complex system. We apply this approach to biochemical reaction systems, finding that the identified sensors are not only necessary but also sufficient for observability. The developed approach can also identify the optimal sensors for target or partial observability, helping us reconstruct selected state variables from appropriately chosen outputs, a prerequisite for optimal biomarker design. Given the fundamental role observability plays in complex systems, these results offer avenues to systematically explore the dynamics of a wide range of natural, technological and socioeconomic systems. PMID:23359701

Liu, Yang-Yu; Slotine, Jean-Jacques; Barabási, Albert-László

2013-01-28

381

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

382

The LSST: A System of Systems  

Microsoft Academic Search

The LSST is a complete observing system that acquires and archives images, processes and analyzes them, and publishes reduced images and catalogs of sources and objects. The LSST will operate over a ten year period producing a survey of 20,000 square degrees over the entire southern sky in 6 filters (ugrizy) with each field having been visited several hundred times

Chuck F. Claver; G. P. Dubois-Felsmann; F. Delgado; P. Hascall; D. Horn; S. Marshall; M. Nordby; T. L. Schalk; G. Schumacher; J. Sebag

2010-01-01

383

The LSST: A System of Systems  

Microsoft Academic Search

The Large Synoptic Survey Telescope (LSST) is a complete observing system that acquires and archives images, processes and analyzes them, and publishes reduced images and catalogs of sources and objects. The LSST will operate over a ten year period producing a survey of 20,000 square degrees over the entire [Southern] sky in 6 filters (ugrizy) with each field having been

Chuck F. Claver; G. P. Debois-Felsmann; F. Delgado; P. Hascall; S. Marshall; M. Nordby; G. Schumacher; J. Sebag

2011-01-01

384

Virtual Memory System (VMS) system security guideline.  

National Technical Information Service (NTIS)

The VAX/VMS environment provides unique built-in security control features for implementation by a system administrator. However, if the necessary controls are not in place, any or all of the VAX/VMS security mechanisms can be easily bypassed. The followi...

1992-01-01

385

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

386

Brazilian System Operator Online Security Assessment System  

Microsoft Academic Search

Implementation details and performance results of the Brazilian system operator dynamic security assessment are presented. It describes the adopted models, analytical methods and functions. Important implementation issues such as network size, contingency screening, EMS integration, user interface and quality of data are also commented

Jorge Jardim; Carlos Neto; Marcelos Groetaers dos Santos

2006-01-01

387

Brazilian System Operator online security assessment system  

Microsoft Academic Search

This paper presents the practical experience of the Brazilian System Operator with the online dynamic security assessment. More specifically, it describes the adopted models, analytical methods and functions, performance, EMS integration, user interface and implementation issues. Examples of situations in which the online security assessment was very useful are also shown.

C. A. S. Neto; M. A. Quadros; M. G. Santos; Jorge Jardim

2010-01-01

388

Power system applications for PASC converter systems  

Microsoft Academic Search

This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source voltage converter systems. The method can be applied to any single terminal pair source with appropriate modifications in power extraction interface and computer control program to match source and load impedance characteristics. The PASC realization as discussed here employs

M. K. Donnelly; R. M. Johnson

1995-01-01

389

Power system applications for PASC converter systems  

Microsoft Academic Search

This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source level voltage converter system. The method can be applied to any single terminal pair source with appropriate modifications in power extraction interface and computer control program to match source and load impedance characteristics. The PASC realization as discussed here

M. K. Donnelly; R. M. Johnson

1994-01-01

390

COMPUTATIONAL VERB SYSTEMS: VERBS AND DYNAMIC SYSTEMS  

Microsoft Academic Search

Computational verb systems are new systematic frame- works of artificial intelligence by embedding the knowledge and ex- periences which are expressed or implied by verbs into machine intel- ligence. It turns out that verbs are very important to describe the dynamics of complexities for the survival of human beings. Verbs are also very important building blocks for transferring and representing

TAO YANG

2003-01-01

391

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

392

Tool calibration system for micromachining system  

DOEpatents

A tool calibration system including a tool calibration fixture and a tool height and offset calibration insert for calibrating the position of a tool bit in a micromachining tool system. The tool calibration fixture comprises a yokelike structure having a triangular head, a cavity in the triangular head, and a port which communicates a side of the triangular head with the cavity. Yoke arms integral with the triangular head extend along each side of a tool bar and a tool head of the micromachining tool system. The yoke arms are secured to the tool bar to place the cavity around a tool bit which may be mounted to the end of the tool head. Three linear variable differential transformer's (LVDT) are adjustably mounted in the triangular head along an X axis, a Y axis, and a Z axis. The calibration insert comprises a main base which can be mounted in the tool head of the micromachining tool system in place of a tool holder and a reference projection extending from a front surface of the main base. Reference surfaces of the calibration insert and a reference surface on a tool bar standard length are used to set the three LVDT's of the calibration fixture to the tool reference position. These positions are transferred permanently to a mastering station. The tool calibration fixture is then used to transfer the tool reference position of the mastering station to the tool bit.

Miller, Donald M. (Sunnyside, WA)

1979-03-06

393

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

394

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

395

Toward intelligent information system  

NASA Astrophysics Data System (ADS)

NASA/RECON, the predecessor of DIALOG System, was originally designed as a user friendly system for astronauts, so that they should not miss-operate the machine in spite of tension in the outer space. Since then, DIALOG has endeavoured to develop a series of user friendly systems, such as knowledge index, inbound gateway, as well as Version II. In this so-called end user searching era, DIALOG has released a series of front end systems successively; DIALOG Business Connection, DIALOG Medical Connection and OneSearch in 1986, early and late 1987 respectively. They are all called expert systems. In this paper, the features of each system are described in some detail and the remaining critical issues are also discussed.

Komatsu, Sanzo

396

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

397

Zenith Star Launch System  

NASA Astrophysics Data System (ADS)

The Zenith Star Launch System (ZSLS) will be used by the SDIO to loft the Alpha Laser and its Large Adaptive Mirror system to orbit. ZSLS performance requirements were rendered especially severe by the weights of these systems, which involved not only the 40,000 lbs of the laser and 15,000 lbs of the mirror, but the weight of laser fuel, laser coolant, beam-control system, target acquisition system, and laser pointing/tracking system. The Titan IV launch vehicle could not have lifted more than 40,000 lbs to LEO. The requisite 100,000 lbs will instead be boosted by a composite launch vehicle consisting of three Shuttle SRBs surrounding a cluster of six Delta II liquid-propellant first stages, and an air-started Delta II first stage. The payload fits within a Titan IV fairing.

Stafford, Larry; Rendine, Michael J.

1990-09-01

398

Omega system performance assessment  

NASA Astrophysics Data System (ADS)

The Omega system availability model permits a probabilistic assessment of Omega performance using receiver reliability, transmitting station availability, and the global coverage of usable signals in combination with the specification of geographic operating region priorities. Applications of the system availability model, utilizing PACE, are presented and interpreted to demonstrate the utility of the methodology and the associated performance of the Omega system under realistic operational conditions. Both spatial and temporal performance characteristics are presented, with specific emphasis placed on the interests of the current users of Omega. Although the model has been specifically developed and applied to Omega, the underlying fundamentals have the potential for a common probabilistic characterization of systems, and combinations of systems, including Loran-C, Navstar GPS (Global Positioning System), and GLONASS.

Warren, R. S.; Morris, P. B.; Gupta, R. R.; Desrochers, G. R.

399

FMIT facility control system  

SciTech Connect

The control system for the Fusion Materials Irradiation Test (FMIT) Facility, under construction at Richland, Washington, uses current techniques in distributed processing to achieve responsiveness, maintainability and reliability. Developmental experience with the system on the FMIT Prototype Accelerator (FPA) being designed at the Los Alamos National Laboratory is described as a function of the system's design goals and details. The functional requirements of the FMIT control system dictated the use of a highly operator-responsive, display-oriented structure, using state-of-the-art console devices for man-machine communications. Further, current technology has allowed the movement of device-dependent tasks into the area traditionally occupied by remote input-output equipment; the system's dual central process computers communicate with remote communications nodes containing microcomputers that are architecturally similar to the top-level machines. The system has been designed to take advantage of commercially available hardware and software.

Suyama, R.M.; Machen, D.R.; Johnson, J.A.

1981-01-01

400

Regional Health Information Systems  

PubMed Central

Abstract In general, there is agreement that robust integrated information systems are the foundation for building successful regional health care delivery systems. Integrated Advanced Information Management System (IAIMS) institutions that, over the years, have developed strategies for creating cohesive institutional information systems and services are finding that IAIMS strategies work well in the even more complex regional environment. The key elements of IAIMS planning are described and lessons learned are discussed in the context of regional health information systems developed. The challenges of aligning the various information agencies and agendas in support of a regional health information system are complex ; however, the potential rewards for health care in quality, efficacy, and cost savings are enormous.

Fuller, Sherrilynne

1997-01-01

401

Ag-Bi System  

NSDL National Science Digital Library

The information provided for the Ag-Bi 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-Bi system is presented.

Kattner, Ursula

2003-01-01

402

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

403

Ag-Cu System  

NSDL National Science Digital Library

The information provided for the Ag-Cu 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-Cu system is presented.

Kattner, Ursula

2003-01-01

404

Bi-Cu System  

NSDL National Science Digital Library

The information provided for the Bi-Cu 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-Cu system is presented.

Kattner, Ursula

2003-01-01

405

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

406

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

407

Bi-Sn System  

NSDL National Science Digital Library

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-Sn system is presented. The information provided for the Bi-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.

Kattner, Ursula

2003-01-01

408

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

409

Pb-Sn System  

NSDL National Science Digital Library

The information provided for the Pb-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 Pb-Sn system is presented.

Kattner, Ursula

2003-01-01

410

Cu-Sn System  

NSDL National Science Digital Library

The information provided for the Cu-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 Cu-Sn system is presented.

Kattner, Ursula

2003-01-01

411

Health information systems.  

PubMed

Health information provides the foundation for all decision making in healthcare whether clinical at the bed side, or at a national government level. This information is generally collected as part of systems which support administrative or clinical workflow and practice. This chapter describes the many and varied features of systems such as electronic health records (EHRs), how they fit with health information systems and how they collectively manage information flow. Systems engineering methods and tools are described together with their use to suit the health industry. This focuses on the need for suitable system architectures and semantic interoperability. These concepts and their relevance to the health industry are explained. The relationship and requirements for appropriate data governance in these systems is also considered. PMID:24018514

Hovenga, Evelyn J S; Grain, Heather

2013-01-01

412

Civil satellite navigation systems  

NASA Astrophysics Data System (ADS)

The use of satellite navigation for civil purposes is examined critically to compare the merits and costs of existing and practical satellite systems. Accuracy and range considerations are reviewed, and the basic requirements of radionavigation systems are set forth. Specific data are given regarding coverage area, integration with ground-based systems, monitoring and control, and accuracy. Systems reviewed include 'Starfix,' Inmarsat, EVA Vavsat, and Geostar/Locstar/Omnitracs, and extensive illustrations are provided to demonstrate constellation geometries. When in view, two or three geosynchronous satellites can provide acceptable fixing, and 9 satellites can provide global coverage. It is argued that systems such as 'Starfix' are commercially viable with less than 100 users, and Inmarsat is identified as an effective European civil system.

Blanchard, Walter F.

1991-07-01

413

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

414

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

415

Idaho Explosives Detection System  

SciTech Connect

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

2005-12-01

416

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

417

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

418

Climate Observing Systems: Data System Challenges  

NASA Astrophysics Data System (ADS)

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 climate variations and change which lead to substantial uncertainties in key climate state, climate feedback, and climate forcing variables. How significant are these uncertainties? For climate trends that have our highest confidence, like the change in mean global surface temperature, the 95 percent confidence intervals amount to about two-thirds of the calculated change. With such large uncertainties it is exceedingly difficult to discern accelerated changes. For other variables, especially variables related to climate feedbacks and forcings (with exceptions for long-lived and well-mixed greenhouse gases like CO2 or CH4) or climate and weather extremes, we often have little or no information to discern trends or cannot objectively assess confidence intervals. Do we know how to reduce existing uncertainties? First and foremost, a climate observation oversight and monitoring capability is needed that tracks the gathering of the data, the processing system, and the performance of the observations, especially time-dependent biases. An organized capability does not now exist, but could be developed at a new and/or existing centers. This center(s) should then have the means and influence to fix problems and be able to establish requirements for new in-situ and satellite observing including related data systems. Such a capability should complement the following: (1) Climate observations from both space-based and in-situ platforms that are taken in ways that address climate needs and adhere to the ten principles outlined by the NRC (1999 Adequacy of Climate Observing Systems) and GCOS. An international framework is vital. (2) A global telecommunications network and satellite data telemetry capacity to enable data and products to be disseminated. (3) A climate observations analysis capability that produces global and regional analyses of various products for the atmosphere, oceans, land surface and hydrology, and the cryosphere. (4) Four dimensional data assimilation capabilities that process the multivariate data in a physically consistent framework to enable production of the analyses, not just for the atmosphere but also for the oceans, land surface and so on. (5) Global climate models that encompass all parts of the climate system and which are utilized to design effective sampling strategies and evaluate observations. These improvements primarily relate to the data system, after the observation has been made, but they must be accompanied with a concerted effort to improve our instrumentation, platforms, and sampling resolutions for key climate variables. How much would such a data system cost? Practical experience has shown that an effective archive and access system can be designed for about 5 to 10 percent of the total cost of the observing system. Building on a solid investment in data management infrastructure and hardware (including data quality control, access, and long-term stewardship), a comparable investment would be required to address oversight, monitoring, data analysis, data assimilation, and adherence to the ten principles. An implementation time frame on the order of five to ten years is probably a realistic time frame, similar to the planning and implementation horizon of major new observing systems.

Karl, T. R.

2001-12-01

419

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.

Skogmo, David (Albuquerque, NM)

1997-01-01

420

Manufacturing systems engineering and management  

Microsoft Academic Search

This paper presents a discussion of manufacturing systems engineering and manufacturing systems management as one of the major efforts that concern systems engineers. There are many ways in which we can describe systems engineering and within this manufacturing systems engineering and management. This paper takes a multifaceted view of systems engineering. It attempts to describe systems engineering in terms of

Andrew P. Sage

1996-01-01

421

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

422

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

423

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

424

[Medical expert systems].  

PubMed

Expert systems are software systems that can successfully compare to human experts. Their purpose is mostly advisory. Besides, they give explanation and advice to human experts when performing certain tasks. They are intelligent information systems, and are capable to explain and justify their conclusions. Knowledge systems are smaller software systems, and are usually less successful than human experts. Main reasons for expert systems development in medicine are: need for justification of decisions, need for enhancing performances in many uncertain relations; need for explaining of decision making process etc. One of the reasons of developing knowledge-based systems was that conventional statistic formalisms have not provided satisfactory solutions in medical decision making (MDM). Also, today, the relations between cases and conclusions are not universally valid. So, few causes can provide the same conclusion. Besides, data are not necessarily absolutely accurate. The area of applying expert systems is very wide: diagnosis, prognosis, self-education, directing etc. Basic structure of expert system consists of: knowledge, data base, inferring mechanism, explaining mechanism and user-interface. Though, expert systems also have certain bad features: primarily, they are not physicians i.e. they can not examine a patient. Furthermore, expert system that is good for one certain area is often not good for another one. There are some cases, when these systems can confuse a physician and make him to make a wrong decision. This occurs very often in two specific cases: when the clinical situation is urgent; and when accuracy of clinical information is not definite. PMID:9601753

Masi?, I; Ridanovi?, Z; Pandza, H

1995-01-01

425

Complex nursing systems.  

PubMed

The specific aim of this paper is to identify the causes underlying the growth in health care system complexity, discuss challenges nurse administrators face as a result of it and suggest strategies for better decision-making in complex system environments. This paper further discusses the merits of computational modelling and simulation which can assist nurse administrators predict the results of their decisions through a virtual complex system environment. PMID:15819831

Clancy, Thomas R; Delaney, Connie-White

2005-05-01

426

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

427

Multizone infiltration monitoring system  

SciTech Connect

A multizone infiltration monitoring system (MIMS) using a single tracer gas has been developed. MIMS measures zonal infiltration and exfiltration as well as interzonal air movement rates. The system has been used at the 4-zone test house at the SERI interim field site, and this paper presents preliminary results. The present system can determine zonal infiltration rates, and the results show significant differences in infiltration rates for the various zones.

Wortman, D.N.; Burch, J.; Judkoff, R.

1982-06-01

428

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

429

Closed-Loop Systems  

NSDL National Science Digital Library

Teachers' Domain presents this interactive lesson on closed-loop systems, which includes an animation that describes the typical components of a closed-loop system (error detector, controller, actuator, and measurement device), and describes the input and output signals for each component. The interactive lesson includes three sections: introduction, system overview, and adjustment scenarios. The activity includes 18 screens with reading materials as well as a supplemental background essay, discussion questions, and standards alignment from Teachers' Domain.

2010-10-11

430

Multibody systems handbook  

SciTech Connect

Dynamics of multibody systems is of importance in the fields of robotics, biomechanics, spacecraft control, road and rail vehicle design, and dynamics of machinery. Many research problems have been solved and a considerable number of computer codes based on multibody formalisms is now available. This book reports on software systems for multibody system dynamics which are established and have found acceptance in the users community.

Schiehlen, W. (Univ. Stuttgart (DE))

1990-01-01

431

SNAP8 Electrical System  

Microsoft Academic Search

This paper presents a brief description of the SNAP-8 electrical-system design changes and provides a broad perspective of the overall system changes incorporated early in 1963. These modifications made feasible a modular approach to component and subsystem development, provided greater system development flexibility, and permitted the application of much presently available electrical technology. The rotating speed was changed from 20,000

A. W. Nice; S. L. Bradley

1964-01-01

432

System supplier's customer strategy  

Microsoft Academic Search

The article addresses the management of dynamic customer relationships in large-scale, complex system business. It combines the existing knowledge on system business, high-tech services and buyer–seller relationships with an international multiple case study. As a result, we produce a framework model, which provides the answers to the following critical questions: What are the key activities through which a system supplier

Anton Helander; Kristian Möller

2007-01-01

433

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

434

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

435

Byzantine Quorum Systems  

Microsoft Academic Search

Quorum systems are well-known tools for ensuring the consistency and availability of replicateddata despite the benign failure of data repositories. In this paper we consider the arbitrary(Byzantine) failure of data repositories and present the first study of quorum system requirementsand constructions that ensure data availability and consistency despite these failures. Wealso consider the load associated with our quorum systems, i.e.,

Dahlia Malkhi; Michael K. Reiter

1998-01-01

436

Byzantine quorum systems  

Microsoft Academic Search

Quorum systems are well-known tools for ensuring the consistency and availability of replicateddata despite the benign failure of data repositories. In this paper we consider the arbitrary(Byzantine) failure of data repositories and present the first study of quorum system requirementsand constructions that ensure data availability and consistency despite these failures. Wealso consider the load associated with our quorum systems, i.e.,

Dahlia Malkhi; Michael K. Reiter

1997-01-01

437

Deceleration enrichener system  

Microsoft Academic Search

This patent describes an internal combustion engine having a fuel\\/air delivery system supplying a fuel\\/air mixture for combustion by the engines. The delivery system having an idle air inlet port, a deceleration enrichener system including a valve operated by engine manifold vacuum and closing the idle air inlet port upon deceleration of the engine to enrich the fuel\\/air ratio of

1990-01-01

438

On Multistate System Analysis  

Microsoft Academic Search

Discrete function theory, which extends switching function theory and multiple-valued logic function theory, is introduced into multistate system analysis. Some theoretical conclusions and algorithms which play key roles in multistate system analysis are presented. The concepts of s-coherence and duality in binary-state system analysis are generalized. The set of minimal upper (maximum lower) vectors for level j, which play the

Xue Janan

1985-01-01

439

Feedback system testing  

Microsoft Academic Search

An analog method of servo system performance testing applicable to experimental analysis and system development and to go-no-go production and maintenance tesfiug has been devised. For a servo system with a forward transfer function Geoand a feedback transfer function Gouthe loop actuating signal equals the loop input signal divided by1+G_{eo}G_{ou}. The loop actuating signal becomes exactly equal to a test

C. White

1958-01-01

440

Informationally coherent quantum systems  

Microsoft Academic Search

An information-theoretic approach to correlated quantum systems is developed. The precise definitions of the informationally coherent N-component system are presented in terms of the state (observable) dependent index of correlation. The informational coherence of the N-particle GHZ system in an entangled pure state is analysed and it is found that the observable-dependent index of correlation is less than or equal

Ryszard Horodecki

1994-01-01

441

Nonlinear Dynamical Systems  

Microsoft Academic Search

The concepts and techniques developed by mathematicians, physicists, and engineers to characterize and predict the behavior\\u000a of nonlinear dynamical systems are now being applied to a wide variety of biomedical problems. This chapter serves as an introduction\\u000a to the central elements of the analysis of nonlinear dynamics systems. The fundamental distinctions between linear and nonlinear\\u000a systems are described and the

Joshua E. S. Socolar

442

Seismic intrusion detector system  

DOEpatents

A system for monitoring man-associated seismic movements within a control area including a geophone for generating an electrical signal in response to seismic movement, a bandpass amplifier and threshold detector for eliminating unwanted signals, pulse counting system for counting and storing the number of seismic movements within the area, and a monitoring system operable on command having a variable frequency oscillator generating an audio frequency signal proportional to the number of said seismic movements.

Hawk, Hervey L. (Albuquerque, NM); Hawley, James G. (Albuquerque, NM); Portlock, John M. (Albuquerque, NM); Scheibner, James E. (Albuquerque, NM)

1976-01-01

443

PRESSURE SYSTEM CONTROL  

DOEpatents

The control of pressure in pressurized liquid systems, especially a pressurized liquid reactor system, may be achieved by providing a bias circuit or loop across a closed loop having a flow restriction means in the form of an orifice, a storage tank, and a pump connected in series. The subject invention is advantageously utilized where control of a reactor can be achieved by response to the temperature and pressure of the primary cooling system.

Esselman, W.H.; Kaplan, G.M.

1961-06-20

444

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

445

Romania's petroleum systems  

SciTech Connect

In Romania, nine onshore petroleum systems and one offshore petroleum system have recently been identified. Of the onshore systems, three are related to the compressional folded basins: Teleajen-Sita (early Middle Cretaceous marine source rocks), and Puciossa-Fusaru and Alunis-Kliwa (Oligocene-early Miocene marine source rocks). In the same category, we have included the recently discovered Deleni petroleum system with source rocks of not yet identified origin but whose reservoirs certainly belong to a folded basin. In the foreland platform basins, two systems can be distinguished: Rimesti-Fauresti (Middle Jurassic marine source rocks) and Infra-Anhydrite (with presumed Middle Jurassic or middle Miocene marine source rocks). The areas corresponding to the posttectonic basins include three onshore petroleum systems and one offshore system: the Pannonian (Badenian marine and Sarmatian brackish water source rocks), the Valea Caselor-Borsa (oligocene marine source rocks) and the Transylvanian (Badenian marine shales source and Sarmatian brackish water source rocks). Offshore, there is only one petroleum system consisting of Oligocene-Miocene marine source rock and Cretaceous or Eocene reservoirs. The majority of the mentioned petroleum systems reservoirs are Paleozoic to Pliocene clastics, but in the platform areas, carbonate reservoirs are found in the Paleozoic and Mesozoic. In all the petroleum systems, despite the different ages of the source rocks, most of the hydrocarbons have been expelled relatively recently during the Late Sarmatian-Pliocene interval. This face is substantiated by examples from two petroleum systems: the Rimesti-Fauresti (duration time 173 m.y., preservation 2 m.y.) and the Alunis-Kliwa (duration time 29-30 m.y., preservation 4 m.y.). The hydrocarbons were first expelled and migrated into described systems reservoirs after Late Styrian and Moldavian overthrusting, i.e. not earlier than 12-14 m.y.

Stefanescu, M.O. (Institute of Geology and Geophysics, Bucharest (Romania)); Popescu, B.M. (Petroconsultants S.A., Geneva (Switzerland))

1993-09-01

446

Microgrid Energy Management System  

NSDL National Science Digital Library

While key infrastructures that were not working as a result of the August 14, 2003 blackout were widely publicized, the systems that remained operational received less notice. An item of interest that has implications for better future control of the power grid is a January 2003 document from Oak Ridge National Laboratory. The report outlines new concepts for advanced Energy Management Systems for a condensed area of electrical load. The resulting interaction between these "microgrids" and the interconnecting distribution system is also discussed.

Kueck, J. D.; Staunton, S. D.; Labinov, S. D.; Kirby, B. J.

2003-01-01

447

BUILDING SUCCESSFUL INTERORGANIZATIONAL SYSTEMS  

Microsoft Academic Search

As organizations look for new ways to obtain business value from their investments in enterprise systems, they are naturally\\u000a seeking to integrate their systems externally with suppliers, customers, and other business partners by implementing what\\u000a are often called interorganizational systems (IOS). Although many organizations have realized sizable benefits from IOS, it\\u000a is clear that much more improvement can be achieved.

M. Lynne Markus

448

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

449

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

450

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

451

Stereoscopic ophthalmic microendoscope system.  

PubMed

Technical characteristics of a new stereoscopic ophthalmic microendoscope system developed for the direct observation of intraocular structures are described herein. Our system includes a stereoscopic visualization mechanism and an image superimposing system that projects the endoscopic image into the eyepiece of the surgical microscope, allowing the surgeon to monitor 3-dimensional endoscopic and microscopic images simply by looking into the eyepiece of the surgical microscope. Stereoscopic visualization of the intraocular structure facilitates fine manipulation of the endoscope probe just above the retina or ciliary body, providing more reliable and safer control of the probe within the eye. Preliminary clinical experience has demonstrated the usefulness of this new system. PMID:9338689

Eguchi, S; Kohzuka, T; Araie, M

1997-10-01

452

System Effectiveness Model Formulation  

SciTech Connect

Evaluation of system effectiveness has numerous pitfalls. System objectives may be poorly defined, may shift during the system life or may be hard to quantify. Further, individual perceptions of the quantifications may differ. Whatever the cause, system effectiveness has been an elusive term to quantitatively define. The proposed model presents a quantitative system effectiveness model and establishes a utilitarian approach for its use with the illustrative application to a nuclear safeguards system. The model uses the Type I and Type II statistical error rates as input to the component or subsystem effectiveness calculation which, when combined using a utilitarian methodology, quantify the overall system effectiveness. The methodology will use a survey of expert judgment to determine the relative importance of the individual subsystems through a statistically designed web survey. The web based survey will be available to nuclear material protection, control, and accounting experts attending the 2008 INMM conference. This model and methodology will provide a repeatable quantifiable measure for any system but in this case a simple safeguards system is used as an example.

Coates, Cameron W [ORNL; Jackson, Denise F [ORNL

2008-01-01

453

Power System Analysis  

NASA Astrophysics Data System (ADS)

Electric power generation that relies on various sources as the primary sources of energy is expected to bring down CO2 emissions levels to support the overall strategy to curb global warming. Accordingly, utilities are moving towards integrating more renewable sources for generation, mostly dispersed, and adopting Smart Grid Technologies for system control. In order to construct, operate, and maintain power systems stably and economically in such background, thorough understanding about the characteristics of power systems and their components is essential. This paper presents modeling and simulation techniques available for the analysis of critical aspects such as thermal capacity, stability, voltage stability, and frequency dynamics, vital for the stable operation of power systems.

Taniguchi, Haruhito

454

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

455

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

456

The Schoolyard Solar System  

NSDL National Science Digital Library

"The Schoolyard Solar System was developed to demonstrate the solar system to scale; to show the relationship between units of thousands, millions, and billions; and to accomplish these goals with student involvement that will re-enforce the lessons." Students and educators can find images of the Sun and the nine planets in our solar system. The website presents bulk, orbital, and observational parameters as well as additional facts for the objects. By printing out the materials and following the hands-on activity discussed at the website, students can learn about the scale of the solar system.

Mallama, Anthony.; Williams, David.

457

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

458

3He bolometer systems  

SciTech Connect

A 3He cryostat which was constructed to cool a germanium bolometer for use as an infrared detector at submillimeter wavelength is discussed. The system had better sensitivity than any other existing system for these wavelengths the system could be improved if better optical coupling could be achieved between the bolometer and the incoming photon stream. Considerable effort was expended to improve this coupling. Even the best results however, fell short of an ideal system by a factor of nearly 5 in coupling efficiency.

Houck, J.R.

1983-11-01

459

Deepwater drilling riser system  

SciTech Connect

The principal focus of this paper is to discuss and summarize, from the manufacturer's perspective, the primary milestones in the development of the marine riser system used to drill in record water depths off the U.S. east coast. This riser system is unique in that it used advanced designs, material technology, and quality control to enable safe operation in water depths beyond the capability of conventional drilling riser systems. Experience and research have led to design improvements that are now being incorporated in new riser systems that have the potential of expanding the frontiers to increasingly deeper water.

Chastain, T.; Stone, D.

1986-08-01

460

Technology reviews: Lighting systems  

SciTech Connect

We present a representative review of existing, emerging, and future technology options in each of five hardware and systems areas in envelope and lighting technologies: lighting systems, glazing systems, shading systems, daylighting optical systems, and dynamic curtain wall systems. The term technology is used here to describe any design choice for energy efficiency, ranging from individual components to more complex systems to general design strategies. The purpose of this task is to characterize lighting system in the state of the art in envelope and lighting technologies in order to identify those with promise for advanced integrated systems, with an emphasis on California commercial buildings. For each technology category, the following activities have been attempted to the extent possible: Identify key performance characteristics and criteria for each technology. Determine the performance range of available technologies. Identify the most promising technologies and promising trends in technology advances. Examine market forces and market trends. Develop a continuously growing in-house database to be used throughout the project. A variety of information sources have been used in these technology characterizations, including miscellaneous periodicals, manufacturer catalogs and cut sheets, other research documents, and data from previous computer simulations. We include these different sources in order to best show the type and variety of data available, however publication here does not imply our guarantee of these data. Within each category, several broad classes are identified, and within each class we examine the generic individual technologies that fall into that class.

Schuman, J.; Rubinstein, F.; Papamichael, K.; Beltran, L.; Lee, E.S.; Selkowitz, S.

1992-09-01

461

HF system design  

NASA Astrophysics Data System (ADS)

This lecture is intended to complement the companion lecture dealing with the propagation aspects of HF communications. The major topics covered are as follows: (1) the design of point-to-point systems; (2) the design of systems involving mobile terminals; (3) system control and frequency management; and (4) resistance to interception and disruption. The lecture attempts to show how the propagation effects discussed in the previous lecture on HF groundwave and skywave propagation are taken into account in the design of HF communications systems for various purposes.

Darnell, M.

1986-10-01

462

Uranium hexafluoride subsampling system  

SciTech Connect

A uranium hexafluoride sampling system is currently being used at the Oak Ridge Gaseous Diffusion Plant (ORGDP) which (1) is low cost to fabricate, (2) is easy to maintain, (3) is convenient to operate, and (4) reduces risks associated with the use of high-heat sources (open flame torches). The new systems have been in use at the ORGDP for more than 15 months without substantial maintenance or operational problems. Use of the systems have not influenced analytical results and thus have the same quality of sample integrity as was inherent in the former systems. 2 refs., 5 figs.

Hall, H.J.; Hedge, W.D.; Reid, D.D.

1985-07-01

463

Modular material monitoring system  

SciTech Connect

Sandia National Laboratories (SNL) has shown that an automated personnel tracking and material monitoring system enhances protection of sensitive and classified parts against an insider. Such a system also significantly reduces the number of required, manual physical inventories at Department of Energy (DOE) sites while increasing assurance that material has not been diverted. SNL`s Insider Technology Department developed and is enhancing its generic, real-time, personnel tracking and material monitoring system. The system consists of facility selectable modules. This paper presents an overview of the modules, evaluation results, user`s suggestions, and future modules.

Self, B.G.; Anspach, D.A.; Waddoups, I.G.

1993-07-01

464

Non classical secretion systems.  

PubMed

Bacteria use molecular machines or weapons to colonize, invade or fight other bacteria and eukaryotic cells. In addition to these various secretion systems, two different systems that release bacterial compounds have also been described. The first one corresponds to membrane vesicle formation and to long distance delivery of membrane or soluble components. The second system is dependent of the expression of the colicin lysis genes known for releasing cytoplasmic colicins as well as other soluble proteins. Both systems will be described thereafter. PMID:23542424

Lloubes, Roland; Bernadac, Alain; Houot, Laetitia; Pommier, Stephanie

2013-03-27

465

MASTER TELEVISION ANTENNA SYSTEM.  

ERIC Educational Resources Information Center

|SPECIFICATIONS FOR THE FURNISHING AND INSTALLATION OF TELEVISION MASTER ANTENNA SYSTEMS FOR SECONDARY AND ELEMENTARY SCHOOLS ARE GIVEN. CONTRACTOR REQUIREMENTS, EQUIPMENT, PERFORMANCE STANDARDS, AND FUNCTIONS ARE DESCRIBED. (MS)|

Rhode Island State Dept. of Education, Providence.

466

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

467

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

468

NEXT launch system  

NASA Astrophysics Data System (ADS)

The NEXT launch system is proposed by Israel Aircraft Industries to provide a low cost launch service capability for small satellites. It is an adaptation of the existing Shavit 1 launcher vehicle system. The NEXT launch system incorporates modern flight proven components and has three major elements: the launcher vehicle which consists of a three stage solid rocket motor booster with a liquid bipropellant system at the upper stage; the launcher erector transporter; and the launch operations support equipment. A new approach for launch service operations allows low cost launch service and use of proven technology insures reliability. Performances and orbital accuracy are specified.

Oiknine, C.

1993-01-01

469

Real-Time Space System Control with Expert Systems.  

National Technical Information Service (NTIS)

Many aspects of space system operations involve continuous control of real time processes. These processes include electrical power system monitoring, prelaunch and ongoing propulsion system health and maintenance, environmental and life support systems, ...

D. Leinweber L. Hawkinson J. Perry

1988-01-01

470

Power system applications for PASC converter systems  

SciTech Connect

This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source level voltage converter system. The method can be applied to any single terminal pair source with appropriate modifications in power extraction interface and computer control program to match source and load impedance characteristics. The PASC realization as discussed here employs banks of transformers, one bank per phase, in which the primaries are connected in parallel through a switch matrix to the dc source. Two opposite polarity primaries per transformer are pulsed alternatively in time to produce an oscillatory sinusoidal output waveform. PASC conversion system capabilities to produce both leading and lagging power factor power output in single-phase and three-phase {Delta} or Y configurations are illustrated. EMTP simulations are used to demonstrate the converter capabilities. Also included are discussions regarding harmonics and potential control strategies to adapt the converter to an application or to minimize harmonics.

Donnelly, M.K. [Pacific Northwest Lab., Richland, WA (United States); Johnson, R.M. [Montana State Univ., Bozeman, MT (United States)

1994-04-01

471

Power system applications for PASC converter systems  

SciTech Connect

This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source voltage converter systems. The method can be applied to any single terminal pair source with appropriate modifications in power extraction interface and computer control program to match source and load impedance characteristics. The PASC realization as discussed here employs banks of transformers, one bank per phase, in which the primary are connected in parallel through a switch matrix to the dc source. Two opposite polarity primaries per transformer are pulsed alternatively in time to produce an oscillatory sinusoidal output waveform. PASC conversion system capabilities to produce both leading and lagging power factor power output in single-phase and three-phase {Delta} or Y configurations are illustrated. EHTP simulations are used to demonstrate the converter capabilities. Also included are discussions regarding harmonics and potential control strategies to adapt the converter to an application or to minimize harmonics.

Donnelly, M.K. [Pacific Northwest Lab., Richland, WA (United States); Johnson, R.M. [Montana State Univ., Bozeman, MT (United States)

1995-01-01

472

Power system applications for PASC converter systems  

NASA Astrophysics Data System (ADS)

This paper shows, using computer EMTP simulations, some preliminary results of applying pulse amplitude synthesis and control (PASC) technology to single-source level voltage converter system. The method can be applied to any single terminal pair source with appropriate modifications in power extraction interface and computer control program to match source and load impedance characteristics. The PASC realization as discussed here employs banks of transformers, one bank per phase, in which the primaries are connected in parallel through a switch matrix to the dc source. Two opposite polarity primaries per transformer are pulsed alternatively in time to produce an oscillatory sinusoidal output waveform. PASC conversion system capabilities to produce both leading and lagging power factor power output in single-phase and three-phase (Delta) or Y configurations are illustrated. EMTP simulations are used to demonstrate the converter capabilities. Also included are discussions regarding harmonics and potential control strategies to adapt the converter to an application or to minimize harmonics.

Donnelly, M. K.; Johnson, R. M.

1994-04-01

473

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

474

APS control system operating system choice  

SciTech Connect

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 descriptions and explanations which follow are intended for reading by other APS technical area managers and will contain a minimum of buzz-words, and where buzz-words are used, they will be explained. The author hopes that it will help in understanding the current trends and developments in the volatile and fast-developing computer field.

Knott, M.; Kraimer, M.; Lenkszus, F.

1990-05-01

475

Power Systems Development Facility, PFBC system perspectives  

Microsoft Academic Search

Southern Company Services (SCS) has investigated the feasibility of constructing a Power Systems Development Facility (PSDF) at the Southem Company`s Clean Coal Research Center in Wilsonville, Alabama. The PSDF combines a number of pilot-scale test facilities at a single site to reduce the overall capital and operating cost compared to individual stand-alone facilities, while continuing the DOE\\/METC`s objective of carrying

G. H. Griswold; T. J. Boyd; M. O. Fankhanel; C. J. Crumm; D. H. Pontius

1993-01-01

476

Systems engineering considerations for operational support systems  

NASA Astrophysics Data System (ADS)

Operations support as considered here is the infrastructure of people, procedures, facilities and systems that provide NASA with the capability to conduct space missions. This infrastructure involves most of the Centers but is concentrated principally at the Johnson Space Center, the Kennedy Space Center, the Goddard Space Flight Center, and the Jet Propulsion Laboratory. It includes mission training and planning, launch and recovery, mission control, tracking, communications, data retrieval and data processing.

Aller, Robert O.

477

Dynamic Isotope Power System, Integrated System Test  

NASA Astrophysics Data System (ADS)

The Dynamic Isotope Power System (DIPS) can supply three to four times more electrical power than Radioisotope Thermoelectric Generators (RTGs) for the same amount of Pu-238 fuel. The available electrical power can be used to drive propellant-efficient electric thrusters, which would enable and/or significantly enhance the capabilities of interplanetary missions. Because of this, the DIPS program has been reviewing the application of DIPS technology to the interplanetary missions in the 500 We to 1.0 kWe power range. Such a DIPS program would focus on completing an Integrated System Test (IST) of the DIPS in a simulated space environment. The DIPS IST would fully demonstrate DIPS integrated operation, long-term containment boundary integrity, and, most importantly, DIPS flight readiness. To reduce cost, schedule, and risk of the DIPS development, the design would use the DOE-developed Brayton Isotope Power System (BIPS) turboalternator compressor (TAC), which is currently being refurbished for use in the NASA-LeRC Solar Dynamic Ground Test Demonstration (SD GTD) Program. The DIPS IST, which would follow the SD GTD testing, would make use of common elements with the SD GTD wherever practical to reduce the IST cost and schedule. The components demonstrated in the IST would be flight prototypical except that full flight qualification would not be performed. For future interplanetary applications, the DIPS system would employ the identical TAC design demonstrated in the IST for all applications. Power level scalability would be achieved by scaling other loop components in a straightforward manner without technology development or requalification. This will significantly reduce costs while providing only a small scalability performance penalty.

Otting, William D.; Hunt, Maribeth E.; Ashe, Thomas L.

1994-07-01

478

System-Generated EMP  

Microsoft Academic Search

The state of the art of system-generated electromagnetic pulse (SGEMP) is reviewed with particular emphasis on the empirical laws of photoelectron emission current and the analytical and numerical techniques employed for the calculation of currents and charges induced on the surface of a system such as a satellite.

Daniel Higgins; K. S. H. Lee; Lennart Marin

1978-01-01

479

Optical Detection System Model.  

National Technical Information Service (NTIS)

An Optical Detection System (ODS) computer code has been developed for the simulation of an electro-optical sensor. The primary emphasis has been devoted to modeling the temporal response of the system to an arbitrary time varying input signal. Input sign...

E. S. Fishburne J. V. Kuhlman F. J. Brickle M. P. Cundiff

1982-01-01

480

Data Director System Manual.  

National Technical Information Service (NTIS)

The Data Director is a multi-user timesharing computer system which allows file manipulation (i.e., editing, printing, punching, etc.) and file transport between it and the OCTOPUS computer system. The heart of the Data Director is an Interdata 7/16 HSALU...

P. R. McGoldrick D. N. Butner

1978-01-01

481

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

482

Assembly system facility design  

Microsoft Academic Search

This paper addresses the design of an assembly system facility consisting of multiple assembly lines of different shapes. In such a design problem there are two conflicting objectives: (i) to minimize the overall area of the facility; and (ii) to maximize the efficiency of the material handling transportation system. We first address the optimization problem of objective (ii) when replacing

Yossi Bukchin; Russell D. Meller; Qi Liu

2006-01-01

483

SCORING SYSTEMS IN PEMPHIGUS  

PubMed Central

Pemphigus is a dreaded disease encountered not infrequently in dermatology settings. While scoring systems in various dermatological conditions exist, objective parameters for assessing disease activity and therapeutic responses in pemphigus are not uniform and foolproof. This article presents various scoring systems in pemphigus.

Grover, Sanjiv

2011-01-01

484

Automated Attendance Accounting System.  

National Technical Information Service (NTIS)

An automated accounting system useful for applying data to a computer from any or all of a multiplicity of data terminals is disclosed. The system essentially includes a preselected number of data terminals which are each adapted to convert data words of ...

C. P. Chapman

1973-01-01

485

Environmental Management System Glossary  

EPA Pesticide Factsheets

LCA:  (Life-cycle assessment) Compilation and evaluation, according to a systematic set of procedures, of the inputs and outputs of materials and energy and the potential environmental impacts of a product system throughout its life cycle.   From Environmental Management System Glossary  -  Search all glossaries for terms containing "LCA"

2011-04-14

486

Epileptic Seizure Warning System.  

National Technical Information Service (NTIS)

The patent application relates to epileptic seizure warning system based on pattern recognition principles. The system is embodied in a small self-contained device which can be carried in a pocket of a person subject to grand mal seizures, to monitor the ...

S. S. Viglione V. A. Ordon W. B. Martin C. C. Kesler

1973-01-01

487

Waterway Systems Traffic Analysis.  

National Technical Information Service (NTIS)

The purpose of the Chicago River and Lock system analysis was (1) to describe and analyze the traffic conditions existing on the waterway system, including traffic conflicts; (2) to project the probable future traffic volume growth; (3) to determine the c...

C. J. Khisty S. George

1996-01-01

488

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

489

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.

490

Portable modular detection system  

SciTech Connect

Disclosed herein are portable and modular detection devices and systems for detecting electromagnetic radiation, such as fluorescence, from an analyte which comprises at least one optical element removably attached to at least one alignment rail. Also disclosed are modular detection devices and systems having an integrated lock-in amplifier and spatial filter and assay methods using the portable and modular detection devices.

Brennan, James S. (Rodeo, CA); Singh, Anup (Danville, CA); Throckmorton, Daniel J. (Tracy, CA); Stamps, James F. (Livermore, CA)

2009-10-13

491

Computer Operating System Maintenance.  

National Technical Information Service (NTIS)

With the acquisition of data analysis system for the Compressor Research Facility (CRF), the Aero Propulsion Laboratory included an IBM 370 computer system which functions as an integral part of CRF data processing. The IBM 370/155 provides: pre-test data...

W. B. Corvey T. A. Rapp

1982-01-01

492

Smart head restraint system  

Microsoft Academic Search

This paper reports the design and development of a novel head restraint system for automotive applications to reduce whiplash injuries to occupants. This head restraint mechanism is combined with a pair of ultrasonic sensors, actuators and control algorithm to form an active head restraint system, which detects the position of an occupant's head when seated in the car and moves

M Acar; S J Clark; R Crouch

2007-01-01

493

Building Body Systems.  

ERIC Educational Resources Information Center

Presents an activity that helps students visualize the major systems of the human body. Involves students building models of those systems, and gives them an understanding of the relationships between different organs by enabling them to see the organs' positions in the body. (JRH)

Cochrane, Alison E.; Bihonegne, Worku

1997-01-01

494

Teaching Biological Systems.  

ERIC Educational Resources Information Center

Described is an activity which allows the investigation of human body systems using textbooks to enhance research skills and providing an opportunity for collaboration between pupils. Discussed are the purpose, materials, method, and results of this teaching method. Reported are some of the advantages of using this activity in teaching systems.…

Walters, Julia

1988-01-01

495

Power systems (review of \\  

Microsoft Academic Search

This is a good introductory textbook on the subject of power system dynamic performance and control, and I would recommend it to both students of power system dynamics and practicing engineers. It is well written with a good balance between mathematical rigger and physically insightful discussions. The book provides a good broad coverage of dynamics, stability and control of power

Pouyan Pourbeik

2009-01-01

496

Overview of Expert Systems  

SciTech Connect

This report provides an overview of Expert Systems - currently the hottest topic in the field of Artificial Intelligence. Topics covered include what it is, techniques used, existing systems, applications, who is doing it, who is funding it, the state-of-the-art, research requirements, and future trends and opportunities.

Gevarter, W.B.

1982-05-01

497

Passive Buoyancy System.  

National Technical Information Service (NTIS)

The objective of the study is to procure one passive buoyancy system to meet the total requirements for 610,000 lbs. net buoyancy between 500 feet and 13,000 feet water depth. The total system may be comprised of one or more types of buoys, and if a combi...

1966-01-01

498

Photovoltaic module mounting system  

Microsoft Academic Search

A solar array mounting system having unique installation, load distribution, and grounding features, and which is adaptable for mounting solar panels having no external frame. The solar array mounting system includes flexible, pedestal-style feet and structural links connected in a grid formation on the mounting surface. The photovoltaic modules are secured in place via the use of attachment clamps that

Robert H. J. Miros; Margaret Birmingham Mittan; Martin N. Seery; Rodney H. Holland

2012-01-01

499

Beam feedback systems  

NASA Astrophysics Data System (ADS)

Outlines of bunch-by-bunch feedback systems for suppressing multibunch instabilities in electron/positron storage rings are shown. The design principles and functions of the feedback components are reviewed. The application of the feedback system as a tool to analyze instabilities using transient-domain techniques is also shown. .

Tobiyama, Makoto

2001-10-01

500

An Environmental Library System.  

ERIC Educational Resources Information Center

|An environmental library system (ELS) for the United States Department of Housing and Urban Development has been developed and installed in six HUD offices to bring together all nationwide and local environmental source materials in an information system with comprehensive cataloging and computer-assisted access. The accompanying manuals…

Tenopir, Carol; Cibbarelli, Pamela