Science.gov

Sample records for seminar power management

  1. Total Quality Management Seminar.

    ERIC Educational Resources Information Center

    Massachusetts Career Development Inst., Springfield.

    This booklet is one of six texts from a workplace literacy curriculum designed to assist learners in facing the increased demands of the workplace. The booklet contains seven sections that cover the following topics: (1) meaning of total quality management (TQM); (2) the customer; (3) the organization's culture; (4) comparison of management…

  2. NASA Seminar on Organization and Management

    NASA Technical Reports Server (NTRS)

    Crawley, R. W.; Kloman, E. H.

    1972-01-01

    The proceedings of a seminar series of current problems and organization of NASA are presented. The seminar was designed to provide a comparative basis for understanding such recurring problems as delegation of authority, resource allocation and decision making patterns, headquarters organization, systems of program control and evaluation, roles and relations of scientists, engineers, and administrators, headquarters-field center relationships, and the overall management philosophy of the headquarters and field centers.

  3. EPRI Seminar on data acquisition, control, and communications in power plants

    SciTech Connect

    Not Available

    1988-11-01

    An EPRI seminar on data acquisition, control, and communication in power plants was hosted by Southern California Edison Company in San Diego, California from February 23--25, 1988. The seminar participants were from electric utilities, both foreign and domestic; architect engineering firms; computer equipment vendors; software companies and engineering consultants. The proceedings contain the text of the formal presentations. These presentations were grouped in the following seven technical sessions: general overview; technology and standards; communication networks; power plant data management; nuclear power applications; fossil power applications; future trends and research; and electrical systems. In addition to the formal presentations, there were also three working group sessions: communications networks, databases and data management, and data acquisition and control. The working group sessions were held to assess the need for future research projects in these areas. Individual papers have been cataloged separately.

  4. PREFACE: Eurotherm Seminar 102: Thermal Management of Electronic Systems

    NASA Astrophysics Data System (ADS)

    Punch, J.; Walsh, E.

    2014-07-01

    About EUROTHERM The aim of the EUROTHERM Committee (www.eurothermcommittee.eu) is to promote and foster European cooperation in Thermal Sciences and Heat Transfer by gathering together scientists and engineers working in specialized areas. The Committee consists of members representing and appointed by national bodies in the EU countries. The current President of EUROTHERM is Professor Anton van Steenhoven from the University of Eindhoven (The Netherlands). The Committee organizes and coordinates European scientific events such as the EUROTHERM Seminars (about 4 per year) and the European Thermal Sciences Conference (every 4 years). About EUROTHERM Seminar 102 (www.eurothermseminar102.com) This seminar, part of the long-running series of European seminars on the thermal sciences, took place in June 2014 at the University of Limerick in Limerick, Ireland. The seminar addressed the topic of 'Thermal Management of Electronic Systems', a critical contemporary application area which represents a vibrant challenge for practitioners of the thermal sciences. We convey special thanks to the reviewers who have evaluated these papers. We also thank the scientific committee, consisting of internationally recognized experts. Their role has been to manage the evaluation of abstracts and the papers selection process as co-coordinators for specific topics. This seminar was hosted by the Stokes Institute at the University of Limerick. It could not have been organized without the efficient help of our administrators and technicians for IT support. This volume of Journal of Physics: Conference Series includes 27 articles presented at the seminar. Dr. Jeff Punch, Chair Stokes Institute, University of Limerick, Limerick, Ireland Email: jeff.punch@ul.ie Prof. Edmond Walsh, Co-Chair Associate Professor, Osney Laboratories, Department of Engineering Science, University of Oxford, UK Email: edmond.walsh@bnc.ox.ac.uk

  5. Seminar on Sanitation for Restaurant Owners and Managers. Unit II.

    ERIC Educational Resources Information Center

    Threlkeld, Joyce C.

    Intended for use in conducting short seminars on sanitation for restaurant owners and managers, unit two of the curriculum guide is organized to provide four hours of classroom instruction. Four major concepts are emphasized. The first concept, providing sanitary conditions in food service establishments, discusses safe use and storage of cleaning…

  6. Seminar On Sanitation for Restaurant Owners and Managers. Unit I.

    ERIC Educational Resources Information Center

    Threlkeld, Joyce C.

    Intended for use in conducting short seminars on sanitation for restaurant owners and managers, the conceptual outline is organized to provide four hours of classroom instruction. Two major concepts are emphasized. The first concept, the effect of sanitary practices on the financial profits of food service, focuses on: (1) service and quality to…

  7. Army Management Views: Report of the 4th Biennial Management Instructors' Seminar July 21-26, 1968.

    ERIC Educational Resources Information Center

    Hancock, Chester H.; And Others

    The report of the Fourth Biennial Management Instructors' Seminar (July 21-26, 1968) which deals with the improvement of management education in the Army, contains presentations of guest speakers and reports of seminar workshops. The former presents the components of management -- planning, decision-making, productivity, communication, and…

  8. Virtual seminars

    NASA Astrophysics Data System (ADS)

    Nelson, H. Roice

    1997-06-01

    A virtual seminar (SM) is an economic and effective instructional tool for teaching students who are at a distance from their instructor. Like conventional class room teaching, a virtual seminar requires an instructor, a student, and a method of communication. Teleconferencing, video conferencing, intranets and the Internet give learners in a Virtual Seminar the ability to interact immediately with their mentors and receive real and relevant answers. This paper shows how industry and academia can benefit from using methods developed and experience gained in presenting the first virtual seminars to academic and petroleum industry participants in mid-1996. The information explosion in industry means that business or technical information is worthless until it is assimilated into a corporate knowledge management system. A search for specific information often turns into a filtering exercise or an attempt to find patterns and classify retrieved material. In the setting of an interactive corporate information system, virtual seminars meet the need for a productive new relationship between creative people and the flux of corporate knowledge. Experience shows that it is more efficient to circulate timesensitive and confidential information electronically through a virtual seminar. Automating the classification of information and removing that task from the usual work load creates an electronic corporate memory and enhances the value of the knowledge to both users and a corporation. Catalogued benchmarks, best-practice standards, and Knowledge Maps (SM) of experience serve as key aids to communicating knowledge through virtual seminars and converting that knowledge into a profit-making asset.

  9. A Behavior Management Seminar for Special or General Education Graduate Students

    ERIC Educational Resources Information Center

    Schindelheim, Franklin D.

    2010-01-01

    The purpose of this qualitative study was to identify the classroom management needs of graduate education students in one college, and develop a seminar that emerged from the research. Researchers have shown that professional development provided for graduate education students typically deals with curriculum and instructional methodologies…

  10. Psychological Intervention in Portuguese College Students: Effects of Two Career Self-Management Seminars

    ERIC Educational Resources Information Center

    Pinto, Joana Carneiro; Loureiro, Nazaré; Taveira, Maria do Céu

    2015-01-01

    This article describes the evaluation of a psychological intervention--the Career Self-Management Seminar, Version A, for undergraduate students, and Version B for postgraduate students--developed to support Portuguese college students in career exploration, goal setting, design and implementation of action plans, and decision-making. A total of…

  11. Language Training Opportunities: Today and Tomorrow 2000 Command Language Program Manager Seminar.

    ERIC Educational Resources Information Center

    Orr, Joseph

    2000-01-01

    Highlights the sixth Command Language Program Manager seminar, hosted by the Defense Language Institute Foreign Language Center, which focused on language training opportunities that are available now as well as those that will be in the future. New initiatives discussed include an Arabic in Action course, Web-based language training, training…

  12. Kennedy Space Center's NASA/Contractor Team-Centered Total Quality Management Seminar: Results, methods, and lessons learned

    NASA Technical Reports Server (NTRS)

    Kinlaw, Dennis C.; Eads, Jeannette

    1992-01-01

    It is apparent to everyone associated with the Nation's aeronautics and space programs that the challenge of continuous improvement can be reasonably addressed only if NASA and its contractors act together in a fully integrated and cooperative manner that transcends the traditional boundaries of proprietary interest. It is, however, one thing to assent to the need for such integration and cooperation; it is quite another thing to undertake the hard tasks of turning such a need into action. Whatever else total quality management is, it is fundamentally a team-centered and team-driven process of continuous improvement. The introduction of total quality management at KSC, therefore, has given the Center a special opportunity to translate the need for closer integration and cooperation among all its organizations into specific initiatives. One such initiative that NASA and its contractors have undertaken at KSC is a NASA/Contractor team-centered Total Quality Management Seminar. It is this seminar which is the subject of this paper. The specific purposes of this paper are to describe the following: Background, development, and evolution of Kennedy Space Center's Total Quality Management Seminar; Special characteristics of the seminar; Content of the seminar; Meaning and utility of a team-centered design for TQM training; Results of the seminar; Use that one KSC contractor, EG&G Florida, Inc. has made of the seminar in its Total Quality Management initiative; and Lessons learned.

  13. SEMINAR PUBLICATION: ORGANIC AIR EMISSIONS FROM WASTE MANAGEMENT FACILITIES

    EPA Science Inventory

    The organic chemicals contained in wastes processed during waste management operations can volatilize into the atmosphere and cause toxic or carcinogenic effects or contribute to ozone formation. Because air emissions from waste management operations pose a threat to human health...

  14. Solar photovoltaic applications seminar: design, installation and operation of small, stand-alone photovoltaic power systems

    SciTech Connect

    Not Available

    1980-07-01

    This seminar material was developed primarily to provide solar photovoltaic (PV) applied engineering technology to the Federal community. An introduction to photoconductivity, semiconductors, and solar photovoltaic cells is included along with a demonstration of specific applications and application identification. The seminar details general systems design and incorporates most known information from industry, academia, and Government concerning small solar cell power system design engineering, presented in a practical and applied manner. Solar PV power system applications involve classical direct electrical energy conversion and electric power system analysis and synthesis. Presentations and examples involve a variety of disciplines including structural analysis, electric power and load analysis, reliability, sizing and optimization; and, installation, operation and maintenance. Four specific system designs are demonstrated: water pumping, domestic uses, navigational and aircraft aids, and telecommunications. All of the applications discussed are for small power requirement (under 2 kilowatts), stand-alone systems to be used in remote locations. Also presented are practical lessons gained from currently installed and operating systems, problems at sites and their resolution, a logical progression through each major phase of system acquisition, as well as thorough design reviews for each application.

  15. Technical Seminar: "Modeling and Optimization in Air Traffic Management"

    NASA Video Gallery

    Traffic Flow Management (TFM) is the efficient organization of traffic flows to meet demand taking into account capacity constraints at airports and in en route airspace. TFM involves thousands of ...

  16. Seminar on Aspects of Planning and Implementing a Nuclear Power Program: A Simulation-Based Exercise

    SciTech Connect

    Apt, Kenneth E.; Bissani, Mo; Morris, Frederic A.; Frazar, Sarah L.; Mathews, Caroline E.; Kessler, Carol E.; Hund, Gretchen; Kreyling, Sean J.; Essner, Jonathan; Vergino, Eileen; Li, Sheng T.

    2008-07-17

    Countries worldwide are considering developing or expanding existing nuclear power programs to meet growing energy demand, to reduce reliance on declining domestic and foreign-based oil supplies, , and to limit the effects of climate change. Safe, secure and sustainable operation of these new reactors will require extensive planning and preparation, possibly as much as ten to 15 years before the first nuclear plant an be brought online, particularly in countries with little nuclear infrastructure in place. The planning and preparation will focus on development of the technical, legal, regulatory and human resources needed to support a nuclear power program. Countries and institutions that can provide technical assistance are already coordinating activities and leveraging resources to ensure these nascent nuclear needs are met cost-effectively. To this end, the National Nuclear Security Administration (NNSA) is hosting seminars aimed at helping countries make more informed decisions about key nuclear safety, security and nonproliferation issues. This paper discusses the challenges associated with infrastructure development, particularly in countries with limited infrastructure, and summarizes the outcomes of the seminars NNSA has held to date .

  17. Power management system

    DOEpatents

    Algrain, Marcelo C.; Johnson, Kris W.; Akasam, Sivaprasad; Hoff, Brian D.

    2007-10-02

    A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the enabled power sources. A total power load placed on the electrical system by one or more power consumers may be measured. If the total power load exceeds the threshold power value, then a determination may be made as to whether one or more additional power sources is available from among the plurality of power sources. At least one of the one or more additional power sources may be enabled, if available.

  18. The Teacher, Teacher Style, and Classroom Management. Proceedings of the Head Start Research Seminars: Seminar No. 2, The Teacher and Classroom Management (1st, Washington, D.C., July 22, 1968).

    ERIC Educational Resources Information Center

    Rashid, Martha; And Others

    One of a series of seminars on Head Start research, this paper deals with the potential contribution of teacher style to classroom management. It is suggested that studies be designed to (1) compare and describe preschool and primary programs, (2) develop a standard system of notation for recording behavior in classrooms, (3) determine the effect…

  19. Implementation of Collaborative Learning as a High-Impact Practice in a Natural Resources Management Section of Freshman Seminar

    ERIC Educational Resources Information Center

    McBroom, Matthew; Bullard, Steven; Kulhavy, David; Unger, Daniel

    2015-01-01

    Forestry and environmental science students enrolled in a one credit hour freshman seminar course participated in a land management evaluation and water quality sampling excursion using canoes and water sampling equipment. The purpose of this assessment was to engage students with hands-on, field based education in order to foster connections to…

  20. Proceedings of the 1980 UCC-ND and GAT waste management seminar

    SciTech Connect

    1980-12-01

    Papers and/or abstracts of 42 papers presented at this waste management seminar are included in this volume. Separate abstracts of 27 papers have been prepared for inclusion in the Energy Data Base (EDB). There are 8 papers represented in the proceedings by abstract only and are not included separately in EDB. The subjects covered in these abstracts include: requirements and compliance for the issuance of the second round NPDES permit for the Portsmouth Plant; performance of the pollution abatement facilities at the Portsmouth Plant; the impact of the Kentucky hazardous waste regulations on the Paducah Plant; control of R-114 losses at the gaseous diffusion plants; innovative alternatives to pollution control projects; evaluating the fate and potential radiological impacts of Technetium-99 released to the environment; and technical support interfacing for the FY-1981 line item project control of water pollution and solid wastes at the Paducah Plant. There are 15 other papers which were previously input to the EDB. (RJC)

  1. Astronomy Research Seminar

    NASA Astrophysics Data System (ADS)

    Johson, Jolyon; Genet, Russell; Armstrong, James; Boyce, Grady; Boyce, Pat; Brewer, Mark; Buchheim, Robert; Carro, Joseph; Estrada, Reed; Estrada, Chris; Freed, Rachel; Gillette, Sean; Harshaw, Richard; Hollis, Thomas; Kenney, John; McGaughey, Seven; McNab, Christine; Mohanan, Kakkala; Sepulveda, Babs; Wallace, Dan; Wallen, Vera

    2015-05-01

    Traditional science lectures and labs are often enhanced through project- and team-based learning. Some students go beyond these classroom studies by conducting research, often under the guidance of university professors. A one-semester astronomy research seminar was initiated in 2006 in collaboration with the community of professional and amateur double star astronomers. The result was dozens of jointly-authored papers published in the Journal of Double Star Observations and the Annual Proceedings of the Society of Astronomical Sciences. This seminar, and its affiliated community, launched a series of conferences and books, providing students with additional forums to share their double star research. The original seminar, and its derivatives, enhanced educational careers through college admissions and scholarships. To expand the seminar's reach, it was restructured from a few teams at one school, to many teams, each from a different school. A volunteer from each school became an assistant instructor. Most of them were seminar veterans, experienced astronomers, or science teachers. The assistant instructors, in turn, recruited enthusiastic students for their teams. To avoid student and instructor overload, the seminar focused on its three deliverables: a formal proposal, published paper, and public PowerPoint presentation. Future seminars may offer other astronomical research options such as exoplanet transit or eclipsing binary photometry.

  2. Hybrid Power Management (HPM)

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2007-01-01

    The NASA Glenn Research Center s Avionics, Power and Communications Branch of the Engineering and Systems Division initiated the Hybrid Power Management (HPM) Program for the GRC Technology Transfer and Partnership Office. HPM is the innovative integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications. The appropriate application and control of the various power devices significantly improves overall system performance and efficiency. The advanced power devices include ultracapacitors and fuel cells. HPM has extremely wide potential. Applications include power generation, transportation systems, biotechnology systems, and space power systems. HPM has the potential to significantly alleviate global energy concerns, improve the environment, and stimulate the economy. One of the unique power devices being utilized by HPM for energy storage is the ultracapacitor. An ultracapacitor is an electrochemical energy storage device, which has extremely high volumetric capacitance energy due to high surface area electrodes, and very small electrode separation. Ultracapacitors are a reliable, long life, maintenance free, energy storage system. This flexible operating system can be applied to all power systems to significantly improve system efficiency, reliability, and performance. There are many existing and conceptual applications of HPM.

  3. Management Seminar Series I and II for Nursing Home Administrators, March-July 1969.

    ERIC Educational Resources Information Center

    Peck, Janice R.

    Developed by the University of Maryland for the Maryland-D.C. Nursing Home Association, these two series, each containing 84 hours of instruction in four three-day seminars, were designed to meet nursing home administrators' need for managerial skills and to prepare them for licensing. (Based on experiences with the first series, course materials…

  4. Focus on Energy: A School Transportation Handbook. Proceedings of the Midwest School Transportation Fleet Management Seminar (Lansing, Michigan, November 28-29, 1979).

    ERIC Educational Resources Information Center

    Michigan State Dept. of Commerce, Lansing.

    Presented are proceedings and supplementary reports of the Midwest School Transportation Fleet Management Seminar, which was held in Lansing, Michigan, November 28-29, 1979. Among the school bus energy management topics discussed are energy feasibility studies, the use of programmed information systems, energy conservation strategies, and…

  5. Hybrid Power Management

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis

    2005-01-01

    An engineering discipline denoted as hybrid power management (HPM) has emerged from continuing efforts to increase energy efficiency and reliability of hybrid power systems. HPM is oriented toward integration of diverse electric energy-generating, energy-storing, and energy-consuming devices in optimal configurations for both terrestrial and outer-space applications. The basic concepts of HPM are potentially applicable at power levels ranging from nanowatts to megawatts. Potential applications include terrestrial power-generation, terrestrial transportation, biotechnology, and outer-space power systems. Instances of this discipline at prior stages of development were reported (though not explicitly labeled as HPM) in three prior NASA Tech Briefs articles: "Ultracapacitors Store Energy in a Hybrid Electric Vehicle"(LEW-16876), Vol. 24, No. 4 (April 2000), page 63; "Photovoltaic Power Station With Ultracapacitors for Storage" (LEW-17177), Vol. 27, No. 8 (August 2003), page 38; and "Flasher Powered by Photovoltaic Cells and Ultracapacitors" (LEW-17246), Vol. 24, No. 10 (October 2003), page 37. As the titles of the cited articles indicate, the use of ultracapacitors as energy-storage devices lies at the heart of HPM. An ultracapacitor is an electrochemical energy-storage device, but unlike in a conventional rechargeable electrochemical cell or battery, chemical reactions do not take place during operation. Instead, energy is stored electrostatically at an electrode/electrolyte interface. The capacitance per unit volume of an ultracapacitor is much greater than that of a conventional capacitor because its electrodes have much greater surface area per unit volume and the separation between the electrodes is much smaller. Power-control circuits for ultracapacitors can be simpler than those for batteries, for two reasons: (1) Because of the absence of chemical reactions, charge and discharge currents can be greater than those in batteries, limited only by the electrical

  6. Hybrid Power Management Program Continued

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2002-01-01

    Hybrid Power Management (HPM) is the innovative integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications. The appropriate application and control of the various power devices significantly improves overall system performance and efficiency. The advanced power devices include ultracapacitors and photovoltaics. HPM has extremely wide potential with applications including power-generation, transportation, biotechnology, and space power systems. It may significantly alleviate global energy concerns, improve the environment, and stimulate the economy.

  7. The Powers of Management.

    ERIC Educational Resources Information Center

    Farmer, Lesley S. J.

    2000-01-01

    Discusses the concept of power and how it relates to school libraries. Topics include personal power; organizational sources of power; organization versus power; the climate within a school, which influences decision making and collaboration; and the role of the library in sharing the power of resources and information. (LRW)

  8. Seminar Software

    NASA Technical Reports Server (NTRS)

    1993-01-01

    The Society for Computer Simulation International is a professional technical society that distributes information on methodology techniques and uses of computer simulation. The society uses NETS, a NASA-developed program, to assist seminar participants in learning to use neural networks for computer simulation. NETS is a software system modeled after the human brain; it is designed to help scientists exploring artificial intelligence to solve pattern matching problems. Examples from NETS are presented to seminar participants, who can then manipulate, alter or enhance them for their own applications.

  9. Power management and distribution technology

    NASA Technical Reports Server (NTRS)

    Dickman, John Ellis

    1993-01-01

    Power management and distribution (PMAD) technology is discussed in the context of developing working systems for a piloted Mars nuclear electric propulsion (NEP) vehicle. The discussion is presented in vugraph form. The following topics are covered: applications and systems definitions; high performance components; the Civilian Space Technology Initiative (CSTI) high capacity power program; fiber optic sensors for power diagnostics; high temperature power electronics; 200 C baseplate electronics; high temperature component characterization; a high temperature coaxial transformer; and a silicon carbide mosfet.

  10. Integrated power management for microsystems

    SciTech Connect

    Fry, D.N.; Wintenberg, A.L.; Bryan, B.L.

    1997-12-01

    There is a need for a universal power module for microsystems. This module should provide power conditioning, energy storage, and load matching for a variety of energy sources and loads such as microelectromechanical systems (MEMS) and wireless sensors and micro-robots. There are a variety of potential ambient and human powered energy sources, which can supply some of the power needs of the military. The challenge is to capture these available sources of electrical energy and condition them to meet the voltage, current, and overall power demands of field-deployable microelectronics and MEMs-based devices such as wireless sensors and micro-robots. Most natural and man-made energy sources found in the environment have a low specific power and are not generally available on a continuous basis. Likewise, human-based energy sources must be optimally managed to meet the power needs in the field. Therefore, a power supply must have the ability to capture the available energy and store it in such a manner to be useful to meet the mission requirements of the device that is connected to the source. It must continuously monitor the status of energy stored and determine the expected demands of the device. A microelectronics-based power management chip can be developed to meet these objectives. The major challenge in realizing this concept will be the design of an intelligent power-conditioning chip that consumes a minimum of power to perform the functions of power conditioning, storage, load matching, and status monitoring. The prototype power conditioning integrated circuit would be capable of delivering a peak power of 100 mW at 5 V. The nominal operating condition would be a very low duty cycle for a relatively high power load, and a low-power source available for long periods of time, or a moderate-power source available intermittently.

  11. Managing Power Heterogeneity

    NASA Astrophysics Data System (ADS)

    Pruhs, Kirk

    A particularly important emergent technology is heterogeneous processors (or cores), which many computer architects believe will be the dominant architectural design in the future. The main advantage of a heterogeneous architecture, relative to an architecture of identical processors, is that it allows for the inclusion of processors whose design is specialized for particular types of jobs, and for jobs to be assigned to a processor best suited for that job. Most notably, it is envisioned that these heterogeneous architectures will consist of a small number of high-power high-performance processors for critical jobs, and a larger number of lower-power lower-performance processors for less critical jobs. Naturally, the lower-power processors would be more energy efficient in terms of the computation performed per unit of energy expended, and would generate less heat per unit of computation. For a given area and power budget, heterogeneous designs can give significantly better performance for standard workloads. Moreover, even processors that were designed to be homogeneous, are increasingly likely to be heterogeneous at run time: the dominant underlying cause is the increasing variability in the fabrication process as the feature size is scaled down (although run time faults will also play a role). Since manufacturing yields would be unacceptably low if every processor/core was required to be perfect, and since there would be significant performance loss from derating the entire chip to the functioning of the least functional processor (which is what would be required in order to attain processor homogeneity), some processor heterogeneity seems inevitable in chips with many processors/cores.

  12. Summary and conclusions from the SIWI seminar for young water professionals food and urban security--breaking the urban/rural division in water management.

    PubMed

    Sjömander Magnusson, T

    2005-01-01

    At the Seminar for Young Water Professionals, a group of young people from different parts of the world met to discuss and debate: the interface between the urban and rural environment--how can water management see to the interest of both the farmer and the urban citizen; how the spatial boundaries within water resources management will develop in the future due to changing population patterns. Three key themes crystallized during the day: the challenges of the urban/rural interface, the need for new boundaries in water resources management and the importance of site-specific, appropriate solutions in relation to water re-use. PMID:16007948

  13. Proceedings of the Alternate Energy Systems Seminar

    NASA Technical Reports Server (NTRS)

    1978-01-01

    The Alternative Energy Systems Seminar was held on March 30, 1978, and was sponsored jointly be the Southwest District Office of the U.S. Department of Energy and JPL. The seminar was an experiment in information exchange with the aim of presenting, in a single day, status and prospects for a number of advanced energy systems to a diverse, largely nontechnical audience, and to solicit post-seminar responses from that audience as to the seminar's usefulness. The major systems presented are: (1) Solar Photovoltaic; (2) Geothermal; (3) Cogeneration Power; (4) Solar Thermal; (5) Solar Heating and Cooling; (6) Wind Energy; and (7) Systems Considerations.

  14. Hybrid power management system and method

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J. (Inventor)

    2007-01-01

    A system and method for hybrid power management. The system includes photovoltaic cells, ultracapacitors, and pulse generators. In one embodiment, the hybrid power management system is used to provide power for a highway safety flasher.

  15. Hybrid Power Management System and Method

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J. (Inventor)

    2008-01-01

    A system and method for hybrid power management. The system includes photovoltaic cells, ultracapacitors, and pulse generators. In one embodiment, the hybrid power management system is used to provide power for a highway safety flasher.

  16. Space station power management and distribution

    NASA Technical Reports Server (NTRS)

    Teren, F.

    1985-01-01

    The power system architecture is presented by a series of schematics which illustrate the power management and distribution (PMAD) system at the component level, including converters, controllers, switchgear, rotary power transfer devices, power and data cables, remote power controllers, and load converters. Power distribution options, reference power management, and control strategy are also outlined. A summary of advanced development status and plans and an overview of system test plans are presented.

  17. Nutrient Control Seminars

    EPA Science Inventory

    These Nutrient Control Seminars will present an extensive state-of-the-technology review of the engineering design and operation of nitrogen and phosphorous control technologies and techniques applied at municipal wastewater treatment plants (WWTPs). These seminars will present ...

  18. Technical Seminar: "Trajectory-Based Operations"""

    NASA Video Gallery

    A safe and efficient air traffic management system is vital to the nation's economy. This seminar explores the concepts and current research into air traffic control concepts that focus on more dim...

  19. Power quality load management for large spacecraft electrical power systems

    NASA Technical Reports Server (NTRS)

    Lollar, Louis F.

    1988-01-01

    In December, 1986, a Center Director's Discretionary Fund (CDDF) proposal was granted to study power system control techniques in large space electrical power systems. Presented are the accomplishments in the area of power system control by power quality load management. In addition, information concerning the distortion problems in a 20 kHz ac power system is presented.

  20. System and method for advanced power management

    DOEpatents

    Atcitty, Stanley; Symons, Philip C.; Butler, Paul C.; Corey, Garth P.

    2009-07-28

    A power management system is provided that includes a power supply means comprising a plurality of power supply strings, a testing means operably connected to said plurality of power supply strings for evaluating performance characteristics of said plurality of power supply strings, and a control means for monitoring power requirements and comprising a switching means for controlling switching of said plurality of power supply strings to said testing means.

  1. 78 FR 70545 - KEI (Maine) Power Management (I) LLC, KEI (Maine) Power Management (II) LLC, KEI (Maine) Power...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-26

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF ENERGY Federal Energy Regulatory Commission KEI (Maine) Power Management (I) LLC, KEI (Maine) Power Management (II) LLC, KEI (Maine) Power Management (III) LLC, KEI (Maine) Power Management (IV) LLC; Notice of Application for Amendment of Licenses and...

  2. NCEER seminars on earthquakes

    USGS Publications Warehouse

    Pantelic, J.

    1987-01-01

    In May of 1986, the National Center for Earthquake Engineering Research (NCEER) in Buffalo, New York, held the first seminar in its new monthly forum called Seminars on Earthquakes. The Center's purpose in initiating the seminars was to educate the audience about earthquakes, to facilitate cooperation between the NCEER and visiting researchers, and to enable visiting speakers to learn more about the NCEER   

  3. Power module Data Management System (DMS) study

    NASA Technical Reports Server (NTRS)

    1978-01-01

    Computer trades and analyses of selected Power Module Data Management Subsystem issues to support concurrent inhouse MSFC Power Study are provided. The charts which summarize and describe the results are presented. Software requirements and definitions are included.

  4. Technical Seminar: "Crash Safety"""

    NASA Video Gallery

    This seminar addresses the history and successful progress in predicting and improving the crash safety characteristics of vehicles, with particular emphasis on rotary wing aircraft and composite s...

  5. Automated Power Systems Management (APSM)

    NASA Technical Reports Server (NTRS)

    Bridgeforth, A. O.

    1981-01-01

    A breadboard power system incorporating autonomous functions of monitoring, fault detection and recovery, command and control was developed, tested and evaluated to demonstrate technology feasibility. Autonomous functions including switching of redundant power processing elements, individual load fault removal, and battery charge/discharge control were implemented by means of a distributed microcomputer system within the power subsystem. Three local microcomputers provide the monitoring, control and command function interfaces between the central power subsystem microcomputer and the power sources, power processing and power distribution elements. The central microcomputer is the interface between the local microcomputers and the spacecraft central computer or ground test equipment.

  6. Managing hospital emergency power testing programs.

    PubMed

    Stymiest, D L

    1997-04-01

    All hospitals must have an emergency power testing program that includes generator load testing and emergency power supply system maintenance. This document examines a management program that uses lessons learned from an emergency power testing program to improve the hospital's facilities and training. PMID:10166993

  7. Promoting Psychosocial Adjustment and Stress Management in First-Year College Students: The Benefits of Engagement in a Psychosocial Wellness Seminar

    ERIC Educational Resources Information Center

    Conley, Colleen S.; Travers, Lea V.; Bryant, Fred B.

    2013-01-01

    Objective/Methods: This research evaluates the effectiveness of a psychosocial wellness seminar for first-year college students, from 2009 to 2011, using an 8-month prospective quasi-experimental design. Participants/Results: Compared with controls ("n" = 22) involved in an alternative seminar, intervention participants ("n" =…

  8. NASA STI Program Seminar: Electronic documents

    NASA Technical Reports Server (NTRS)

    1994-01-01

    The theme of this NASA Scientific and Technical Information Program Seminar was electronic documents. Topics covered included Electronic Documents Management at the CASI, the Impact of Electronic Publishing on User Expectations and Searching Image Record Management, Secondary Publisher Considerations for Electronic Journal Literature, and the Technical Manual Publishing On Demand System (TMPODS).

  9. Power Management in Regenerative Life Support Systems

    NASA Technical Reports Server (NTRS)

    Crawford, Sekou; Pawlowski, Christopher; Finn, Cory; Mead, Susan C. (Technical Monitor)

    1999-01-01

    Effective management of power can reduce the cost of launch and operation of regenerative life support systems. Variations in power may be quite severe and may manifest as surges or spikes, While the power plant may have some ability to deal with these variations, with batteries for example, over-capacity is expensive and does nothing to address the fundamental issue of excessive demand. Because the power unit must be sized to accommodate the largest demand, avoiding power spikes has the potential to reduce the required size of the power plant while at the same time increasing the dependability of the system. Scheduling of processors can help to reduce potential power spikes. However, not all power-consuming equipment is easily scheduled. Therefore, active power management is needed to further decrease the risk of surges or spikes. We investigate the use of a hierarchical scheme to actively manage power for a model of a regenerative life support system. Local level controllers individually determine subsystem power usage. A higher level controller monitors overall system power and detects surges or spikes. When a surge condition is detected, the higher level controller conducts an 'auction' and describes subsystem power usage to re-allocate power. The result is an overall reduction in total power during a power surge. The auction involves each subsystem making a 'bid' to buy or sell power based on local needs. However, this re-allocation cannot come at the expense of life support function. To this end, participation in the auction is restricted to those processes meeting certain tolerance constraints. These tolerances represent acceptable limits within which system processes can be operated. We present a simulation model and discuss some of our results.

  10. Knowledge-based systems for power management

    NASA Technical Reports Server (NTRS)

    Lollar, L. F.

    1992-01-01

    NASA-Marshall's Electrical Power Branch has undertaken the development of expert systems in support of further advancements in electrical power system automation. Attention is given to the features (1) of the Fault Recovery and Management Expert System, (2) a resource scheduler or Master of Automated Expert Scheduling Through Resource Orchestration, and (3) an adaptive load-priority manager, or Load Priority List Management System. The characteristics of an advisory battery manager for the Hubble Space Telescope, designated the 'nickel-hydrogen expert system', are also noted.

  11. Situational Communication Skills Seminars

    ERIC Educational Resources Information Center

    Beaupre, Walter J.

    1970-01-01

    Describes a series of seminars held by the University of Rhode Island which attempted to improve communication between local professional persons, deaf adults, and graduate students in speech pathology and audiology. (RW)

  12. Power Management for Space Advanced Life Support

    NASA Technical Reports Server (NTRS)

    Jones, Harry

    2001-01-01

    Space power systems include the power source, storage, and management subsystems. In current crewed spacecraft, solar cells are the power source, batteries provide storage, and the crew performs any required load scheduling. For future crewed planetary surface systems using Advanced Life Support, we assume that plants will be grown to produce much of the crew's food and that nuclear power will be employed. Battery storage is much more costly than nuclear power capacity and so is not likely to be used. We investigate the scheduling of power demands by the crew or automatic control, to reduce the peak power load and the required generating capacity. The peak to average power ratio is a good measure of power use efficiency. We can easily schedule power demands to reduce the peak power from its maximum, but simple scheduling approaches may not find the lowest possible peak to average power ratio. An initial power scheduling example was simple enough for a human to solve, but a more complex example with many intermittent load demands required automatic scheduling. Excess power is a free resource and can be used even for minor benefits.

  13. Automated power management and control

    NASA Technical Reports Server (NTRS)

    Dolce, James L.

    1991-01-01

    A comprehensive automation design is being developed for Space Station Freedom's electric power system. A joint effort between NASA's Office of Aeronautics and Exploration Technology and NASA's Office of Space Station Freedom, it strives to increase station productivity by applying expert systems and conventional algorithms to automate power system operation. The initial station operation will use ground-based dispatches to perform the necessary command and control tasks. These tasks constitute planning and decision-making activities that strive to eliminate unplanned outages. We perceive an opportunity to help these dispatchers make fast and consistent on-line decisions by automating three key tasks: failure detection and diagnosis, resource scheduling, and security analysis. Expert systems will be used for the diagnostics and for the security analysis; conventional algorithms will be used for the resource scheduling.

  14. Interactive electric power management systems

    SciTech Connect

    Palko, E.

    1992-04-09

    This paper reports that one of the feeders serving your double-ended 13.8 kV/480 V substations below toward the end of the graveyard shift last night, and switching was performed immediately to isolate the faulted feeder. By first shift startup time, tie-breaker closing and other necessary switching was completed to serve the affected substations from one end only. Plant load, however, had grown over the years, and only one transformer will not accommodate full load at any of the substations. An electrician is dispatched to each substation to continuously monitor transformer temperature and load readings sand outgoing 480-V feeder current readings. The electricians are instructed to keep you advised by telephone so the informed decision necessary to issue load-shedding instructions can be made. However, trying to obtain continual updates from multiple remote substations by voice telephone falls short as an effective means of communication. And the situation is not improved by the plant manager camped at your elbow - he's there because he also cannot get through to you by phone. By midmorning, the situation is hopeless. All production employees are sent home, and employees scheduled to report on subsequent shafts are contacted at their homes and told not to report or work until further notice. The money that will be lost in idle time and lost production will eclipse the cost of replacing the faulted feeder.

  15. Reactive power management and voltage control in deregulated power markets

    NASA Astrophysics Data System (ADS)

    Spangler, Robert G.

    The research that is the subject of this dissertation is about the management of reactive power and voltage support in the wholesale open access power markets in the United States (US). The purpose of this research is to place decisions about open access market structures, as they relate to reactive power and voltage control, on a logical and consistent economic basis, given the engineering needs of a commercial electric power system. An examination of the electricity markets operating in the US today reveals that current approaches to reactive power management and voltage support are extensions of those based on historical, regulated monopoly electric service. A case for change is built by first looking at the subject of reactive power from an engineering viewpoint and then from an economic perspective. Ultimately, a set of market rules for managing reactive power and voltage support is proposed. The proposal suggests that cost recovery for static and dynamic VARs is appropriately accomplished through the regulated transmission cost of service. Static VAR cost recovery should follow traditional rate recovery methodologies. In the case of dynamic VARs, this work provides a methodology based on the microeconomic theory of the firm for determining such cost. It further suggests that an operational strategy that reduces and limits the use of dynamic VARs, during normal operations, is appropriate. This latter point leads to an increase in the fixed cost of the transmission network but prevents price spikes and short supply situations from affecting, or being affected by, the reactive capability limitations associated with dynamic VARs supplied from synchronous generators. The rules are consistent with a market structure that includes competitive generation and their application will result in the communication of a clear understanding of the responsibilities, related to voltage control, of each type of market entity. In this sense, their application will contribute to

  16. Sharing Practice through Socratic Seminars

    ERIC Educational Resources Information Center

    Mangrum, Jennifer R.

    2010-01-01

    Developing systems and opportunities for effective dialogue is critical if schools wish to help teachers work collectively. One school used Socratic seminars, structured conversations about selected texts. These seminars helped teachers to build relationships, share practice, and change curriculum and policy. The seminars also were critical to…

  17. Hybrid Power Management-Based Vehicle Architecture

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2011-01-01

    Hybrid Power Management (HPM) is the integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications (s ee figure). The appropriate application and control of the various power devices significantly improves overall system performance and efficiency. The basic vehicle architecture consists of a primary power source, and possibly other power sources, that provides all power to a common energy storage system that is used to power the drive motors and vehicle accessory systems. This architecture also provides power as an emergency power system. Each component is independent, permitting it to be optimized for its intended purpose. The key element of HPM is the energy storage system. All generated power is sent to the energy storage system, and all loads derive their power from that system. This can significantly reduce the power requirement of the primary power source, while increasing the vehicle reliability. Ultracapacitors are ideal for an HPM-based energy storage system due to their exceptionally long cycle life, high reliability, high efficiency, high power density, and excellent low-temperature performance. Multiple power sources and multiple loads are easily incorporated into an HPM-based vehicle. A gas turbine is a good primary power source because of its high efficiency, high power density, long life, high reliability, and ability to operate on a wide range of fuels. An HPM controller maintains optimal control over each vehicle component. This flexible operating system can be applied to all vehicles to considerably improve vehicle efficiency, reliability, safety, security, and performance. The HPM-based vehicle architecture has many advantages over conventional vehicle architectures. Ultracapacitors have a much longer cycle life than batteries, which greatly improves system reliability, reduces life-of-system costs, and reduces environmental impact as ultracapacitors will probably never need to be

  18. Power Management and Distribution System Developed for Thermionic Power Converters

    NASA Technical Reports Server (NTRS)

    Baez, Anastacio N.

    1998-01-01

    A spacecraft solar, bimodal system combines propulsion and power generation into a single integrated system. An Integrated Solar Upper Stage (ISUS) provides orbital transfer capabilities, power generation for payloads, and onboard propulsion to the spacecraft. A key benefit of a bimodal system is a greater payload-to-spacecraft mass ratio resulting in lower launch vehicle requirements. Scaling down to smaller launch vehicles increases space access by reducing overall mission cost. NASA has joined efforts with the Air Force Phillips Laboratory to develop enabling technologies for such a system. The NASA/Air Force bimodal concept uses solar concentrators to focus energy into an integrated power plant. This power plant consists of a graphite core that stores thermal energy within a cavity. An array of thermionic converters encircles the graphite cavity and provides electrical energy conversion functions. During the power generation phase of the bimodal system, the thermionic converters are exposed to the heated cavity and convert the thermal energy to electricity. Near-term efforts of the ISUS bimodal program are focused on a ground demonstration of key technologies in order to proceed to a full space flight test. Thermionic power generation is one key technology of the bimodal concept. Thermionic power converters impose unique operating requirements upon a power management and distribution (PMAD) system design. Single thermionic converters supply large currents at very low voltages. Operating voltages can vary over a range of up to 3 to 1 as a function of operating temperature. Most spacecraft loads require regulated 28-volts direct-current (Vdc) power. A combination of series-connected converters and powerprocessing boosters is required to deliver power to the spacecraft's payloads at this level.

  19. Space Solar Power Management and Distribution (PMAD)

    NASA Technical Reports Server (NTRS)

    Lynch, Thomas H.

    2000-01-01

    This paper presents, in viewgraph form, SSP PMAD (Space Solar Power Management and Distribution). The topics include: 1) Architecture; 2) Backside Thermal View; 3) Solar Array Interface; 4) Transformer design and risks; 5) Twelve phase rectifier; 6) Antenna (80V) Converters; 7) Distribution Cables; 8) Weight Analysis; and 9) PMAD Summary.

  20. Nuclear Power: Problems in Information Management.

    ERIC Educational Resources Information Center

    Beaver, William

    1990-01-01

    Discusses the problems encountered at the Duquesne Light Company of Pittsburgh's nuclear power plant as the result of an inability to process information effectively and keep pace with technological change. The creation of a separate division trained and directed to manage the plant's information flows is described and evaluated. (CLB)

  1. Town Government Seminar

    ERIC Educational Resources Information Center

    Kirshner, Virginia K.; Murphy, Richard G.

    1973-01-01

    The coming of the eighteen-year-old vote places a new demand on the high schools for relevance in citizenship training. The town government seminar developed at Lincoln-Sudbury Regional High School offers an innovative alternative to the traditional approaches to civics education. (Editor)

  2. [A seminar for thinking?].

    PubMed

    Touzet, Patrick

    2014-01-01

    The sociopolitical context in which we carry out our caregiving profession influences our methods of working. In our world marked by rationalism, thinking about care, in the framework of a seminar, is a way of engaging ourselves and of not simply becoming a functionary of care. PMID:25095584

  3. Discipline Seminar Report.

    ERIC Educational Resources Information Center

    Seattle Public Schools, WA.

    This report, which contains information and observations gathered over a three-week period by participants in a 1981 seminar on discipline, outlines the discipline problems and policies of the Seattle Public Schools. Based on parental, staff, and student concerns that a small percentage of students are engaging in unacceptable behavior, the report…

  4. The Graduate Student Seminar

    ERIC Educational Resources Information Center

    Laidler, Keith J.

    1971-01-01

    A seminar is described as a forum for discussion of scientific problems and as an exercise in communication. Guidelines are given for selecting and organizing the subject material, the manner and language of an oral presentation, and the use of visual aids and the voice. (TS)

  5. High Density Power Converters for Photovoltaic Power Management

    NASA Astrophysics Data System (ADS)

    Sangwan, Rahul

    In typical photovoltaic systems, PV cells are connected in series to achieve high output voltages, which decreases conduction losses and helps the downstream power electronics operate at higher efficiencies. A series connection means that the current through the string is limited by the worst case cell, substring, or module, which can result in suboptimal operation of the rest of the string. Given how even small shading can have a large effect on performance, there has been growing interest in the use of distributed power management architectures to mitigate losses from variation in PV systems. In particular, partial power processing converters have gained traction as a means to improve the performance of PV arrays with small, distributed converters that configure in parallel with PV cells. These converters can use low voltage components, only process a fraction of the total power allowing them to achieve higher efficiencies and power density and also have higher reliability. This work details the design and operation of a partial power processing converter implemented as a Resonant Switched Capacitor (ReSC) converter. An integrated circuit (IC) is designed in 0.18 mum CMOS process. Operation at high frequencies (20-50 MHz) allows high levels of integration with air core inductors directly attached to the die through a gold bump, solder reflow process. Test results for the IC are presented with power density and efficiency metrics. The IC is then used as a partial power processing converter to implement equalization with a specially constructed PV panel. The converter is shown to mitigate power loss due to mismatch.

  6. Environmental Management Audit: Southwestern Power Administration (Southwestern)

    SciTech Connect

    Not Available

    1993-03-01

    This report documents the results of the Environmental Management Audit completed for the Southwestern Power Administration. During this Audit, activities and records were reviewed and personnel interviewed. The onsite portion of the Southwestern Audit was conducted from November 30 through December 11, 1992, by the US Department of Energy's Office of Environmental Audit (EH-24). EH-24 carries out independent assessments of Department of Energy (DOE) facilities and activities as part of the Assistant Secretary's Environmental Audit Program. This program is designed to evaluate the status of DOE facilities/activities regarding compliance with laws, regulations, DOE Orders, formal written procedures, compliance agreements, and Best Management Practices (BMPs). This internal oversight function plays an important role in improving the compliance status of DOE operations. The Environmental Management Audit stresses DOE's policy that it is the responsibility of line management to conduct operations in an environmentally sound and safe manner. The Environmental Management Audit focuses on management systems and programs, whereas the Environmental Baseline Audit conducted in March 1991 focused on specific compliance issues. The scope of the Southwestern Environmental Management Audit included a review of all systems and functions necessary for effective environmental management. Specific areas of review included: Organizational Structure; Environmental Commitment; Environmental Protection Programs; Formality of Environmental Programs; Internal and External Communication; Staff Resources, Training, and Development; and Program Evaluation, Reporting, and Corrective Action.

  7. Environmental Management Audit: Southwestern Power Administration (Southwestern)

    SciTech Connect

    Not Available

    1993-03-01

    This report documents the results of the Environmental Management Audit completed for the Southwestern Power Administration. During this Audit, activities and records were reviewed and personnel interviewed. The onsite portion of the Southwestern Audit was conducted from November 30 through December 11, 1992, by the US Department of Energy`s Office of Environmental Audit (EH-24). EH-24 carries out independent assessments of Department of Energy (DOE) facilities and activities as part of the Assistant Secretary`s Environmental Audit Program. This program is designed to evaluate the status of DOE facilities/activities regarding compliance with laws, regulations, DOE Orders, formal written procedures, compliance agreements, and Best Management Practices (BMPs). This internal oversight function plays an important role in improving the compliance status of DOE operations. The Environmental Management Audit stresses DOE`s policy that it is the responsibility of line management to conduct operations in an environmentally sound and safe manner. The Environmental Management Audit focuses on management systems and programs, whereas the Environmental Baseline Audit conducted in March 1991 focused on specific compliance issues. The scope of the Southwestern Environmental Management Audit included a review of all systems and functions necessary for effective environmental management. Specific areas of review included: Organizational Structure; Environmental Commitment; Environmental Protection Programs; Formality of Environmental Programs; Internal and External Communication; Staff Resources, Training, and Development; and Program Evaluation, Reporting, and Corrective Action.

  8. Fuel-Cell-Powered Vehicle with Hybrid Power Management

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2010-01-01

    Figure 1 depicts a hybrid electric utility vehicle that is powered by hydrogenburning proton-exchange-membrane (PEM) fuel cells operating in conjunction with a metal hydride hydrogen-storage unit. Unlike conventional hybrid electric vehicles, this vehicle utilizes ultracapacitors, rather than batteries, for storing electric energy. This vehicle is a product of continuing efforts to develop the technological discipline known as hybrid power management (HPM), which is oriented toward integration of diverse electric energy-generating, energy-storing, and energy- consuming devices in optimal configurations. Instances of HPM were reported in five prior NASA Tech Briefs articles, though not explicitly labeled as HPM in the first three articles: "Ultracapacitors Store Energy in a Hybrid Electric Vehicle" (LEW-16876), Vol. 24, No. 4 (April 2000), page 63; "Photovoltaic Power Station With Ultracapacitors for Storage" (LEW- 17177), Vol. 27, No. 8 (August 2003), page 38; "Flasher Powered by Photovoltaic Cells and Ultracapacitors" (LEW-17246), Vol. 27, No. 10 (October 2003), page 37; "Hybrid Power Management" (LEW-17520), Vol. 29, No. 12 (December 2005), page 35; and "Ultracapacitor-Powered Cordless Drill" (LEW-18116-1), Vol. 31, No. 8 (August 2007), page 34. To recapitulate from the cited prior articles: The use of ultracapacitors as energy- storage devices lies at the heart of HPM. An ultracapacitor is an electrochemical energy-storage device, but unlike in a conventional rechargeable electrochemical cell or battery, chemical reactions do not take place during operation. Instead, energy is stored electrostatically at an electrode/electrolyte interface. The capacitance per unit volume of an ultracapacitor is much greater than that of a conventional capacitor because its electrodes have much greater surface area per unit volume and the separation between the electrodes is much smaller.

  9. LED lamp power management system and method

    DOEpatents

    Gaines, James; Clauberg, Bernd; Van Erp, Josephus A. M.

    2013-03-19

    An LED lamp power management system and method including an LED lamp having an LED controller 58; a plurality of LED channels 60 operably connected to the LED controller 58, each of the plurality of LED channels 60 having a channel switch 62 in series with at least one shunted LED circuit 83, the shunted LED circuit 83 having a shunt switch 68 in parallel with an LED source 80. The LED controller 58 reduces power loss in one of the channel switch 62 and the shunt switch 68 when LED lamp electronics power loss (P.sub.loss) exceeds an LED lamp electronics power loss limit (P.sub.lim); and each of the channel switches 62 receives a channel switch control signal 63 from the LED controller 58 and each of the shunt switches 68 receives a shunt switch control signal 69 from the LED controller 58.

  10. Managed care, market power, and monopsony.

    PubMed Central

    Pauly, M V

    1998-01-01

    OBJECTIVE: To examine the theoretical possibility of monopsony behavior under managed care insurance. STUDY DESIGN: Use of microeconomic theory to examine how managed care plans with market power would be expected to behave, and effects of that behavior on consumer and supplier welfare. PRINCIPAL FINDINGS: The article shows that, under managed care monopsony, the welfare of consumers may be increased but overall economic welfare will necessarily be reduced. It offers a test for whether the lower prices paid by managed care buyers with larger market share represent welfare-reducing monopsony or a welfare-increasing movement away from provider monopoly. The test says that, if the quantity of inputs (supplied under conditions of increasing long-run marginal cost) declines, monopsony is present. The article also argues that the translation of lower provider prices into lower premiums is consistent with welfare-reducing monopsony by nonprofit health plans. In contrast, for-profit health plans that obtain monopsony may reduce the welfare of consumers as well as that of input suppliers. These theoretical conclusions are shown to be consistent with recent empirical research indicating a negative relationship between buyer market power and cost per enrollee. CONCLUSIONS: Traditional antitrust policy has not been able to deal well with monopsony. The article concludes that health plans that use their market power to reduce medical spending may harm the well-being both of specialized medical workers and of consumers of medical care. Antitrust policy may need to be modified to deal with this situation. PMID:9865228

  11. Power management and control for space systems

    NASA Technical Reports Server (NTRS)

    Finke, R. C.; Myers, I. T.; Terdan, F. F.; Stevens, N. J.

    1978-01-01

    Power management and control technology for the large, high-power spacecraft of the 1980's is discussed. Systems weight optimization that indicate a need for higher bus voltages are shown. Environmental interactions that are practical limits for the maximum potential on exposed surfaces are shown. A dual-voltage system is proposed that would provide the weight savings of a high-voltage distribution system and take into account the potential environmental interactions. The technology development of new components and circuits is also discussed.

  12. Subject Analysis for Document Finding Systems; Quantification and Librametric Studies; Management of Translation Service (7th Annual Seminar, Indian Statistical Institute).

    ERIC Educational Resources Information Center

    Documentation Research and Training Centre, Bangalore (India).

    The opening session of the seventh annual seminar of the Documentation Research and Training Center is provided in verbatim form. The section of Group Meetings and Plenary Sessions examines the propositions presented in the thirty-two papers presented in Volume I (LI 002 230). The balance of the report provides: (1) the Valedictory Address and the…

  13. Subject Analysis for Document Finding System; Quantification and Librametric Studies; Management of Translation Service (7th Annaul Seminar, Indian Statistical Institute).

    ERIC Educational Resources Information Center

    Documentation Research and Training Centre, Bangalore (India).

    Thirty-two papers presented at the seventh annual seminar of the Documentation Research and Training Center explore: (1) Universe of Subjects - Its Development and Structure, (2) Subject Analysis and Classification, (3) Subject Headings, (4) Librametry and Its Scope, (5) Subject Analysis, (6) Library Work, (7) Documentation List, (8) Library…

  14. Intelligent Systems for Power Management and Distribution

    NASA Technical Reports Server (NTRS)

    Button, Robert M.

    2002-01-01

    The motivation behind an advanced technology program to develop intelligent power management and distribution (PMAD) systems is described. The program concentrates on developing digital control and distributed processing algorithms for PMAD components and systems to improve their size, weight, efficiency, and reliability. Specific areas of research in developing intelligent DC-DC converters and distributed switchgear are described. Results from recent development efforts are presented along with expected future benefits to the overall PMAD system performance.

  15. Power management for small scale systems

    NASA Astrophysics Data System (ADS)

    Meyer, Christopher D.; Bedair, Sarah S.; Morgan, Brian C.; Lin, Xue; Bashirullah, Rizwan; Arnold, David P.; Kierzewski, Iain M.; Lazarus, Nathan S.

    2014-06-01

    Contemporary electronic systems often contain power circuits to support the unique power conversion or conditioning needs of each of the various subsystems. Each of these power circuits is generally implemented with discrete passive and active electronic components soldered next to the load devices on the printed circuit board. As greater levels of functionality are demanded within diminishing size and weight allowances, power management solutions will increasingly demand highly miniaturized power converters that are more tightly integrated into single-package solutions or even directly integrated onto the points of source and load. Experimental converters have demonstrated great potential in switching at very high frequencies (100+ MHz) to reduce the size of the requisite passive storage elements (inductors, transformers, and capacitors) to values that may be suitable for in-package or on-chip integration. However, integrating the passives into the same package as the active switching and control circuitry remains a significant fabrication challenge due to material incompatibility and inadequate performance of the passives. This paper discusses progress towards a fully integrated power converter module with a focus on microfabrication processes for both passive component development and wafer-level packaging. The passive components have been optimized for high performance at hundreds of MHz through the use of thick copper traces, intricate three-dimensional winding patterns. The capability of detaching the passives from the fabrication wafer produces a passives substrate that can serve directly as a routing platform for full integration of all components into a single-package solution.

  16. Automation technology for aerospace power management

    NASA Technical Reports Server (NTRS)

    Larsen, R. L.

    1982-01-01

    The growing size and complexity of spacecraft power systems coupled with limited space/ground communications necessitate increasingly automated onboard control systems. Research in computer science, particularly artificial intelligence has developed methods and techniques for constructing man-machine systems with problem-solving expertise in limited domains which may contribute to the automation of power systems. Since these systems perform tasks which are typically performed by human experts they have become known as Expert Systems. A review of the current state of the art in expert systems technology is presented, and potential applications in power systems management are considered. It is concluded that expert systems appear to have significant potential for improving the productivity of operations personnel in aerospace applications, and in automating the control of many aerospace systems.

  17. Fuel cells seminar

    SciTech Connect

    1996-12-01

    This year`s meeting highlights the fact that fuel cells for both stationary and transportation applications have reached the dawn of commercialization. Sales of stationary fuel cells have grown steadily over the past 2 years. Phosphoric acid fuel cell buses have been demonstrated in urban areas. Proton-exchange membrane fuel cells are on the verge of revolutionizing the transportation industry. These activities and many more are discussed during this seminar, which provides a forum for people from the international fuel cell community engaged in a wide spectrum of fuel cell activities. Discussions addressing R&D of fuel cell technologies, manufacturing and marketing of fuel cells, and experiences of fuel cell users took place through oral and poster presentations. For the first time, the seminar included commercial exhibits, further evidence that commercial fuel cell technology has arrived. A total of 205 papers is included in this volume.

  18. Proceedings: 1981 PCB seminar

    SciTech Connect

    Addis, G.; Marks, J.

    1982-09-01

    The EPRI PCB seminar, held in Dallas, Texas, on December 1 to 3, 1981, was the first comprehensive seminar covering PCB problems and solutions of interest to the electric utilities. The purpose of the meeting, attended by 300 participants, was to present emerging technologies and ideas for PCB analysis and removal. The major areas covered were: background and history of the problem, analytic techniques, spill cleanup, destruction of askarels, treatment of capacitors, and decontamination of oil. Both EPRI-sponsored and independently developed projects are included. In addition to the ongoing research on new technologies, some presentations cover processes ready or almost ready for commercialization. Supplementing the proceedings, a videotape of author interviews was prepared and is available for purchase from EPRI (415/855-2286).

  19. 1990 fuel cell seminar: Program and abstracts

    SciTech Connect

    Not Available

    1990-12-31

    This volume contains author prepared short resumes of the presentations at the 1990 Fuel Cell Seminar held November 25-28, 1990 in Phoenix, Arizona. Contained herein are 134 short descriptions organized into topic areas entitled An Environmental Overview, Transportation Applications, Technology Advancements for Molten Carbonate Fuel Cells, Technology Advancements for Solid Fuel Cells, Component Technologies and Systems Analysis, Stationary Power Applications, Marine and Space Applications, Technology Advancements for Acid Type Fuel Cells, and Technology Advancement for Solid Oxide Fuel Cells.

  20. Multi-level Full Virtualization of Power Management

    NASA Astrophysics Data System (ADS)

    Liu, Yongpeng; Chi, Wanqing; Liu, Yongyan

    Virtual machine technique is employed to improve system utilization and energy efficiency. However, isolation effect of virtualization imposes challenges to power management. A multi-level power behavior statistic framework is introduced to support power profiling of virtual device, virtual machine and host. Power management mechanisms are virtualized to map power management operations between virtual device and physical device. The power consumption of a virtual device is virtualized according to its performance share from the physical device. The experiments demonstrated that our power management virtualization solution has negligible decline of system performance.

  1. Configuration management; Operating power station electrical systems

    SciTech Connect

    Beavers, R.R.; Sumiec, K.F. )

    1989-01-01

    Increasing regulatory and industry attention has been focused on properly controlling electrical design changes. These changes can be controlled by using configuration management techniques. Typically, there are ongoing modifications to various process systems or additions due to new requirements at every power plant. Proper control of these changes requires that an organized method be used to ensure that all important parameters of the electrical auxiliary systems are analyzed and that these parameters are evaluated accurately. This process, commonly referred to as configuration management, is becoming more important on both fossil and nuclear plants. Recent NRC- and utility-initiated inspections have identified problems due to incomplete analysis of changes to electrical auxiliary systems at nuclear stations.

  2. Ultrafast nanoelectromechanical switches for VLSI power management

    NASA Astrophysics Data System (ADS)

    Venumbaka, Sri Ramya

    Power consumption is a major concern in the present chip design industry. Complementary Metal Oxide Semiconductor (CMOS) technology scaling has led to an exponential increase in the leakage power. The excessive power dissipation can result in more heat generation, which in turn increases the temperature. According to Intel's source, power density increased to a value of 1000 W/cm2 and is approaching the value which is equal to the radiation from the sun's surface (10000 W/cm2). This leads to reliability issues in nanometer-scale CMOS as Silicon starts melting at 1687K. To resolve this issue, we introduce a novel architecture to design nanoelectromechanical switches and implementation results with virtually zero leakage current, ˜1 V operation voltage, ˜1 GHz resonant frequency and nanometer-scale footprint. Microelectromechanical Switches (MEMS) have very low "on" and very high "off" resistances. Their switching voltages are usually high (5-50 V), switching speeds are usually low (1 MHz) and their footprints tend to be very large (many um2). We have designed and fabricated devices with very low actuation voltages and very high speed using tuning fork geometry compatible with conventional CMOS fabrication technologies. This unique switch geometry decreases the actuation voltage by a factor of 1.4 and doubles the switching speed. It consists of a cantilever beam that acts as a ground plane. Upon actuation, both the ground plane and the switch's main beam move towards each other that makes the center of mass stationary during switching and thus, the switching speed doubles. These tuning fork nanoelectromechanical switches can be readily implemented in Very Large Scale Integration (VLSI) circuits to manage leakage power. The thesis will describe the Nanoelectromechanical systems (NEMS) structures, their characteristics, leakage reduction techniques, reliability of the devices and piezo actuator structures to determine contact resistance and longevity of switches.

  3. Hydro power benefits of cooperative watershed management

    SciTech Connect

    Harrison, L.L.; Lindquist, D.S.

    1995-12-31

    This paper describes the efforts of Pacific Gas and Electric Company (PG&E) in cooperation with a number of agencies and public and private land managers to reduce erosion and restore the health of the East Branch North Fork Feather River (EBNFFR) watershed in Plumas County, California. Erosion of the 2600 square kilometer watershed has been identified as a major contributor of sediments to PG&E`s Rock Creek and Cresta hydroelectric reservoirs which have collected more than 5.4 million cubic meters of sediment over the past 45 years. PG&E and the 17 other participants of the cooperative erosion control program are joined by a {open_quotes}Memorandum of Agreement{close_quotes} (MOA) and are applying {open_quotes}Coordinated Resource Management{close_quotes} (CRM). To date, more than 33 individual watershed improvement projects and a comprehensive erosion control strategy document have been completed. It is anticipated that over the long term, the erosion control program may reduce the water-borne sediment delivery to Rock Creek and Cresta reservoirs by as much as 50 percent. PG&E benefits from the program through reduced sediment deposition in the reservoirs, reduced sediment wear on the power turbines, and potential increases in base flow during summer months when water power is of greatest value.

  4. INDOOR AIR VAPOR INTRUSION SEMINAR

    EPA Science Inventory

    This seminar is sponsored by the ORD in collaboration with the Office of Solid Waste and Emergency Response. The goal of this seminar is to present information and guidance to evaluate, assess and characterize chemical vapor pathways migrating into structures resulting from conta...

  5. [Seminar on the development of population policies].

    PubMed

    1994-12-01

    In November 1994, the Center of Studies and Research on Population for Development, in collaboration with the OPTIONS Project and the technical support team of UNFPA based in Dakar, organized a seminar/workshop on the development and implementation of population policies and programs in Bamako, Mali. This was the first seminar of this type to be held in Africa. National level managers involved in population policies and programs were the target group of the meeting. Representatives from 19 African countries participated. The primary objective of this meeting was to help participants better manage formation, implementation, and follow-up evaluation of population policies and programs. The seminar provided a framework for participants to exchange points of view and experiences with appropriate themes in the development and implementation of population policies and programs. The workshop objectives included strengthening national abilities to formulate population policies and to plan and implement programs and identifying a follow-up methodology to evaluate population policies and programs. The seminar consisted of three parts: an account of national reports, presentation of models on planning and decision-making, and communications themes. The models presented were INTEGRA, FAMPLAN, health information system, and geographic information system. The communication themes were integration of population and development in a structural adjustment context; evolution of family planning programs in Africa; principal population concepts; use of qualitative surveys in demographic research; IEC (information, communication, and education) applied to population policies and programs; implementation of and follow-up on the Dakar-Ngor Declaration; communication approaches for population policies; consideration of migration in the formulation of population policies; and women, family, population, and development. Nine participating countries, two of which are in the Sahel, do not yet

  6. SEMINAR PUBLICATION: NATIONAL CONFERENCE ON URBAN RUNOFF MANAGEMENT-ENHANCING URBAN WATERSHED MANAGEMENT AT THE LOCAL, COUNTY, AND STATE LEVELS (EPA/625/R-95/003)

    EPA Science Inventory

    This document presents the technical information presented at the National Conference on Urban Runoff Management held in Chicago, IL, on March 30-April 2, 1993. This conference was cosponsored by the U.S. Environmental Protection Agency's Center for Environmental Research Informa...

  7. Development of management technology for large power systems. [of spacecraft

    NASA Technical Reports Server (NTRS)

    Decker, D. K.; Messner, A.; Graves, J.

    1982-01-01

    Autonomous power management has been proposed as a method to perform optimization of power subsystem performance in connection with the management of multikilowatt space platforms. A concept for a 250-kW utility-type power subsystem was developed. A Cassegrain concentrator solar array primary source is conditioned by a solar array switching unit which supplies seventeen 220 +20 Vdc power channels. A power management subsystem provides the monitoring and control of the overall electrical power subsystem. The discussed system concept for autonomous management of high power space platforms utilizes on-board microprocessors in a decentralized data management architecture. A data bus protocol and a data bus contention resolution scheme were selected in conjunction with the dencentralized management architecture.

  8. High School and Community College Astronomy Research Seminar

    NASA Astrophysics Data System (ADS)

    Genet, Russell M.; Boyce, Pat; Buchheim, Robert; Collins, Dwight; Freed, Rachel; Harshaw, Richard; Johnson, Jolyon; Kenney, John; Wallen, Vera

    2016-06-01

    For the past decade, Cuesta College has held an Astronomy Research Seminar. Teams of high school and community college students, with guidance from instructors and advanced amateur astronomers, have made astronomical observations, reduced their data, and submitted their research results to appropriate journals. A variety of projects, using modest-aperture telescopes equipped with low-cost instruments, are within reach of motivated students. These include double star astrometry, variable star photometry, and exoplanet transit timing. Advanced scientific knowledge and mastery of sophisticated experimental skills are not required when the students are immersed within a supportive community of practice. The seminar features self-paced, online learning units, an online textbook (the Small Telescope Astronomical Research Handbook), and a supportive website sponsored by the Institute for Student Astronomical Research (www.In4StAR.org). There are no prerequisites for the seminar. This encourages everyone—including underrepresented minorities and persons with disabilities—to participate. Each participant contributes as their time, talents, and experience dictates, thus replicating the modern, professional research team. Our spring 2015 seminar was the largest yet. Volunteer assistant instructors provided local in-person leadership, while the entire seminar met online for PowerPoint presentations on proposed projects and final research results. Some 37 students from eight schools finished the seminar as coauthors of 19 papers published in the January 2016 volume of the Journal of Double Star Observations. Robotic telescopes devoted to student research are coming online at both Concordia University and the Boyce Astronomical Robotic Observatory, as is a central online sever that will provide students with uniform, cost-free reduction and analysis software. The seminar has motivated many of its graduates to pursue careers in science, engineering, and medicine, often with

  9. User guide to power management for PCs and monitors

    SciTech Connect

    Nordman, B.; Piette, M.A.; Kinney, K.; Webber, C.

    1997-01-01

    Power management of personal computers (PCs) and monitors has the potential to save significant amounts of electricity as well as deliver other economic and environmental benefits. The Environmental Protection Agency`s ENERGY STAR{reg_sign} program has transformed the PC market so that equipment capable of power management is now widely available. However, previous studies have found that many Energy Star compliant computer systems are not accomplishing energy savings. The principal reasons for this are systems not being enabled for power management or a circumstance that prevents power management from operating. This guide is intended to provide information to computer support workers to increase the portion of systems that successfully power manage. The guide introduces power management concepts and the variety of benefits that power management can bring. It then explains how the parts of a computer system work together to enter and leave power management states. Several common computer system types are addressed, as well as the complications that networks bring to power management. Detailed instructions for checking and configuring several system types are provided, along with trouble shooting advice. The guide concludes with a discussion of how to purchase Energy Star compliant systems and future directions for power management of PCs and related equipment.

  10. Fuel Cell Seminar, 1992: Program and abstracts

    SciTech Connect

    Not Available

    1992-12-31

    This year`s theme, ``Fuel Cells: Realizing the Potential,`` focuses on progress being made toward commercial manufacture and use of fuel cell products. Fuel cell power plants are competing for market share in some applications and demonstrations of market entry power plants are proceeding for additional applications. Development activity on fuel cells for transportation is also increasing; fuel cell products have potential in energy and transportation industries, with very favorable environmental impacts. This Seminar has the purpose of fostering communication by providing a forum for the international community interested in development, application, and business opportunities related fuel cells. Over 190 technical papers are included, the majority being processed for the data base.

  11. Development of Asset Management Decision Support Tools for Power Equipment

    NASA Astrophysics Data System (ADS)

    Okamoto, Tatsuki; Takahashi, Tsuguhiro

    Development of asset management decision support tools become very intensive in order to reduce maintenance cost of power equipment due to the liberalization of power business. This article reviews some aspects of present status of asset management decision support tools development for power equipment based on the papers published in international conferences, domestic conventions, and several journals.

  12. A perspective of power management for large space platforms

    NASA Technical Reports Server (NTRS)

    Decker, D. K.; Graves, J.

    1982-01-01

    NASA and military applications for high power spacecraft are presently being planned. A perspective of autonomous power management for low earth orbit large space platforms is presented. A multichannel 250 kWe utility-type power subsystem is used as a baseline system. The need for automation is reviewed, based on power subsystem complexity, survivability requirements, and cost benefits. On-board versus ground management is discussed with respect to these needs. In addition, the utilization of autonomous power management to enable technology readiness of large complex power subsystems is described. Recommendations are made for further technology thrusts.

  13. Electric power management for the International Space Station experiment racks

    SciTech Connect

    Burcham, M.; Darty, M.A.; Thibodeau, P.E.; Coe, R.; Dunn, M.

    1995-12-31

    An intelligent, all solid state, electric power management system for International Space Station experiment racks is described. This power system is implemented via redundant internal microcomputers, controlling hybridized solid state power controllers in response to 1553B data bus commands. The solid state power controllers are programmable for current trip level and for normally-open or normally-closed operation.

  14. Developments in space power components for power management and distribution

    NASA Technical Reports Server (NTRS)

    Renz, D. D.

    1984-01-01

    Advanced power electronic components development for space applications is discussed. The components described include transformers, inductors, semiconductor devices such as transistors and diodes, remote power controllers, and transmission lines.

  15. Power in top management teams: dimensions, measurement, and validation.

    PubMed

    Finkelstein, S

    1992-08-01

    Top managers' power plays a key role in strategic decision making. However, although numerous scholars have recognized its importance, very few have attempted to measure the phenomenon. In this article, I present a set of dimensions measuring top managers' power and suggest a measurement methodology to facilitate empirical inquiry. Data from a group of 1,763 top managers in three industries were used to assess the validity and reliability of the power dimensions in three studies. Results demonstrate strong support for the proposed power dimensions. PMID:10120413

  16. [Leadership seminars: what are they good for?].

    PubMed

    Schubert, P

    2010-08-01

    Professional training courses are a matter of course for any surgeon who wants to offer the best and most up-to-date treatment to patients. But after leaving the operating room surgeons will be confronted with issues that demand more than surgical skills. As a leader of a team the expectations and needs of the people under his care and of the managers above him need to be faced. Leadership seminars are an opportunity to become aware of these and to learn how to competently react to them. They can offer support on many levels: what type of leader am I? How do I appear to others? What do my employees/superiors expect from me? How can I manage my staff, not least in terms of reaching the goals of my department or the company? Which leadership tools are there and how can I use them? Good leadership seminars can be recognized by the balance of different aspects which they cover: they offer new expertise as well as opportunities for reflecting on one's personality and everyday work and introduce new approaches with an immediate opportunity for practicing them effectively. The key is that managers monitor their progress continuously and ideally continue to develop themselves further throughout their working life. PMID:20628860

  17. Automated distribution system management for multichannel space power systems

    NASA Technical Reports Server (NTRS)

    Fleck, G. W.; Decker, D. K.; Graves, J.

    1983-01-01

    A NASA sponsored study of space power distribution system technology is in progress to develop an autonomously managed power system (AMPS) for large space power platforms. The multichannel, multikilowatt, utility-type power subsystem proposed presents new survivability requirements and increased subsystem complexity. The computer controls under development for the power management system must optimize the power subsystem performance and minimize the life cycle cost of the platform. A distribution system management philosophy has been formulated which incorporates these constraints. Its implementation using a TI9900 microprocessor and FORTH as the programming language is presented. The approach offers a novel solution to the perplexing problem of determining the optimal combination of loads which should be connected to each power channel for a versatile electrical distribution concept.

  18. Automation of Space Station module power management and distribution system

    NASA Technical Reports Server (NTRS)

    Bechtel, Robert; Weeks, Dave; Walls, Bryan

    1990-01-01

    Viewgraphs on automation of space station module (SSM) power management and distribution (PMAD) system are presented. Topics covered include: reasons for power system automation; SSM/PMAD approach to automation; SSM/PMAD test bed; SSM/PMAD topology; functional partitioning; SSM/PMAD control; rack level autonomy; FRAMES AI system; and future technology needs for power system automation.

  19. Proceedings of the USNRC/EPRI/ANL heated crevice seminar.

    SciTech Connect

    Park, J. Y.; Fruzzetti, K.; Muscara, J.; Diercks, D. R.; Energy Technology; EPRI; USNRC

    2003-08-31

    An international Heated Crevice Seminar, sponsored by the Division of Engineering Technology, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, Argonne National Laboratory, and the Electric Power Research Institute, was held at Argonne National Laboratory on October 7-11, 2002. The objective of the seminar was to provide a working forum for the exchange of information by contributing experts on current issues related to corrosion in heated crevices, particularly as it relates to the integrity of PWR steam generator tubes. Forty-five persons from six countries attended the seminar, including representatives from government agencies, private industry and consultants, government research laboratories, nuclear vendors, and electrical utilities. The seminar opened with keynote talks on secondary-side crevice environments associated with IGA and IGSCC of mill-annealed Alloy 600 steam generator tubes and the submodes of corrosion in heat transfer crevices. This was followed by technical sessions on (1) Corrosion in Crevice Geometries, (2) Experimental Methods, (3) Results from Experimental Studies, and (4) Modeling. The seminar concluded with a panel discussion on the present understanding of corrosive processes in heated crevices and future research needs.

  20. A Power Development Model for Managing and Preventing Conflict.

    ERIC Educational Resources Information Center

    Cowher, Salene J.

    1996-01-01

    Describes a model for understanding and applying conflict management strategies using a personal power development theory. Adds conflict management styles to this theory to address the growing need for effective conflict management in higher education. Explains the approaches to conflict in each stage of the model and provides a case study. (RJM)

  1. Satellite Seminars: An Alternative Method for Extension Educators?

    ERIC Educational Resources Information Center

    Kiernan, N. E.; And Others

    1995-01-01

    Satellite seminars in grain and forage crop production and pest management were conducted for a large, geographically dispersed audience of farmers and agribusiness persons to test the feasibility of an alternative delivery method in extension. Results of a formative evaluation revealed it is feasible to create an alternative model. (LZ)

  2. Serious Games: A Seminar Map for International Business Schools

    ERIC Educational Resources Information Center

    Witte, Anne E.

    2014-01-01

    One business school addressed the "zeitgeist" of the financial crisis by introducing in its inaugural seminar the cultural and ethical values too often absent from the types of transactions students are trained to manage. Drawing from cross-cultural and communication studies, the author tested "serious games"--cultural…

  3. Incorporating Business Communication in an Integrative Business Seminar.

    ERIC Educational Resources Information Center

    Luse, Donna W.

    1999-01-01

    Describes the Integrative Business Seminar in the College of Business Administration at Northeast Louisiana University in which the principal courses in business communication, management, marketing, and finance as well as a segment in problem solving, are taught as one 15-credit hour block in which subject areas are treated as an integrated…

  4. Factors Influencing Seminar Learning and Academic Achievement.

    PubMed

    Spruijt, Annemarie; Leppink, Jimmie; Wolfhagen, Ineke; Bok, Harold; Mainhard, Tim; Scherpbier, Albert; van Beukelen, Peter; Jaarsma, Debbie

    2015-01-01

    Many veterinary curricula use seminars, interactive educational group formats in which some 25 students discuss questions and issues relating to course themes. To get indications on how to optimize the seminar learning process for students, we aimed to investigate relationships between factors that seem to be important for the seminar learning process, and to determine how these seminar factors account for differences in students' achievement scores. A 57-item seminar evaluation (USEME) questionnaire was administered to students right after they attended a seminar. In total, 80 seminars distributed over years 1, 2, and 3 of an undergraduate veterinary medicine curriculum were sampled and 988 questionnaires were handed in. Principal factor analysis (PFA) was conducted on 410 questionnaires to examine which items could be grouped together as indicators of the same factor, and to determine correlations between the derived factors. Multilevel regression analysis was performed to explore the effects of these seminar factors and students' prior achievement scores on students' achievement scores. Within the questionnaire, four factors were identified that influence the seminar learning process: teacher performance, seminar content, student preparation, and opportunities for interaction within seminars. Strong correlations were found between teacher performance, seminar content, and group interaction. Prior achievement scores and, to a much lesser extent, the seminar factor group interaction appeared to account for differences in students' achievement scores. The factors resulting from the present study and their relation to the method of assessment should be examined further, for example, in an experimental setup. PMID:26075625

  5. SPS Energy Conversion Power Management Workshop

    NASA Technical Reports Server (NTRS)

    1980-01-01

    Energy technology concerning photovoltaic conversion, solar thermal conversion systems, and electrical power distribution processing is discussed. The manufacturing processes involving solar cells and solar array production are summarized. Resource issues concerning gallium arsenides and silicon alternatives are reported. Collector structures for solar construction are described and estimates in their service life, failure rates, and capabilities are presented. Theories of advanced thermal power cycles are summarized. Power distribution system configurations and processing components are presented.

  6. Automated electric power management and control for Space Station Freedom

    NASA Technical Reports Server (NTRS)

    Dolce, James L.; Mellor, Pamela A.; Kish, James A.

    1990-01-01

    A comprehensive automation design is being developed for Space Station Freedom's electric power system. It strives to increase station productivity by applying expert systems and conventional algorithms to automate power system operation. An integrated approach to the power system command and control problem is defined and used to direct technology development in: diagnosis, security monitoring and analysis, battery management, and cooperative problem-solving for resource allocation. The prototype automated power system is developed using simulations and test-beds.

  7. PROTECTION OF PUBLIC WATER SUPPLIES FROM GROUND-WATER CONTAMINATION. SEMINAR PUBLICATION

    EPA Science Inventory

    The publication contains material from technology transfer seminars presented for the water supply community. The document provides utility managers and operators, regulators and technical specialists with guidance for preventing contamination and alternatives for treating public...

  8. New Tools, New Times: Strategic Planning. A Seminar Focusing on Proactive Management Techniques (Chapel Hill, North Carolina, June 17-19, 1991).

    ERIC Educational Resources Information Center

    Morrison, James L.; Ashley, William C.

    This handbook was designed to accompany a three-day workshop for senior administrators in higher education on proactive management techniques in higher education. Proactive management allows for anticipating change and managing uncertainty in place of crisis management or reactive actions. The workshop covered: (1) strategic thinking; (2)…

  9. Space Power Management and Distribution Status and Trends

    NASA Technical Reports Server (NTRS)

    Reppucci, G. M.; Biess, J. J.; Inouye, L.

    1984-01-01

    An overview of space power management and distribution (PMAD) is provided which encompasses historical and current technology trends. The PMAD components discussed include power source control, energy storage control, and load power processing electronic equipment. The status of distribution equipment comprised of rotary joints and power switchgear is evaluated based on power level trends in the public, military, and commercial sectors. Component level technology thrusts, as driven by perceived system level trends, are compared to technology status of piece-parts such as power semiconductors, capacitors, and magnetics to determine critical barriers.

  10. Hybrid Power Management (HPM) Program Resulted in Several New Applications

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2003-01-01

    Hybrid Power Management (HPM) is the innovative integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications. The appropriate application and control of the various power devices significantly improves overall system performance and efficiency. The advanced power devices include ultracapacitors, fuel cells, and photovoltaics. HPM has extremely wide potential with applications from nanowatts to megawatts. Applications include power generation, transportation systems, biotechnology systems, and space power systems. HPM has the potential to significantly alleviate global energy concerns, improve the environment, and stimulate the economy.

  11. Managing PV Power on Mars - MER Rovers

    NASA Technical Reports Server (NTRS)

    Stella, Paul M.; Chin, Keith; Wood, Eric; Herman, Jennifer; Ewell, Richard

    2009-01-01

    The MER Rovers have recently completed over 5 years of operation! This is a remarkable demonstration of the capabilities of PV power on the Martian surface. The extended mission required the development of an efficient process to predict the power available to the rovers on a day-to-day basis. The performance of the MER solar arrays is quite unlike that of any other Space array and perhaps more akin to Terrestrial PV operation, although even severe by that comparison. The impact of unpredictable factors, such as atmospheric conditions and dust accumulation (and removal) on the panels limits the accurate prediction of array power to short time spans. Based on the above, it is clear that long term power predictions are not sufficiently accurate to allow for detailed long term planning. Instead, the power assessment is essentially a daily activity, effectively resetting the boundary points for the overall predictive power model. A typical analysis begins with the importing of the telemetry from each rover's previous day's power subsystem activities. This includes the array power generated, battery state-of-charge, rover power loads, and rover orientation, all as functions of time. The predicted performance for that day is compared to the actual performance to identify the extent of any differences. The model is then corrected for these changes. Details of JPL's MER power analysis procedure are presented, including the description of steps needed to provide the final prediction for the mission planners. A dust cleaning event of the solar array is also highlighted to illustrate the impact of Martian weather on solar array performance

  12. 27 CFR 6.94 - Educational seminars.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2014-04-01 2014-04-01 false Educational seminars. 6.94 Section 6.94 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL âTIED-HOUSEâ Exceptions § 6.94 Educational seminars. An industry member may give or sponsor educational seminars...

  13. 27 CFR 6.94 - Educational seminars.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2013-04-01 2013-04-01 false Educational seminars. 6.94 Section 6.94 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY ALCOHOL âTIED-HOUSEâ Exceptions § 6.94 Educational seminars. An industry member may give or sponsor educational seminars...

  14. 27 CFR 6.94 - Educational seminars.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2012-04-01 2012-04-01 false Educational seminars. 6.94 Section 6.94 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS âTIED-HOUSEâ Exceptions § 6.94 Educational seminars. An industry member may give or sponsor educational seminars...

  15. 27 CFR 6.94 - Educational seminars.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2011-04-01 2011-04-01 false Educational seminars. 6.94 Section 6.94 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS âTIED-HOUSEâ Exceptions § 6.94 Educational seminars. An industry member may give or sponsor educational seminars...

  16. 27 CFR 6.94 - Educational seminars.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 1 2010-04-01 2010-04-01 false Educational seminars. 6.94 Section 6.94 Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY LIQUORS âTIED-HOUSEâ Exceptions § 6.94 Educational seminars. An industry member may give or sponsor educational seminars...

  17. Power management for energy harvesting wireless sensors

    NASA Astrophysics Data System (ADS)

    Arms, S. W.; Townsend, C. P.; Churchill, D. L.; Galbreath, J. H.; Mundell, S. W.

    2005-05-01

    The objective of this work was to demonstrate smart wireless sensing nodes capable of operation at extremely low power levels. These systems were designed to be compatible with energy harvesting systems using piezoelectric materials and/or solar cells. The wireless sensing nodes included a microprocessor, on-board memory, sensing means (1000 ohm foil strain gauge), sensor signal conditioning, 2.4 GHz IEEE 802.15.4 radio transceiver, and rechargeable battery. Extremely low power consumption sleep currents combined with periodic, timed wake-up was used to minimize the average power consumption. Furthermore, we deployed pulsed sensor excitation and microprocessor power control of the signal conditioning elements to minimize the sensors" average contribution to power draw. By sleeping in between samples, we were able to demonstrate extremely low average power consumption. At 10 Hz, current consumption was 300 microamps at 3 VDC (900 microwatts); at 5 Hz: 400 microwatts, at 1 Hz: 90 microwatts. When the RF stage was not used, but data were logged to memory, consumption was further reduced. Piezoelectric strain energy harvesting systems delivered ~2000 microwatts under low level vibration conditions. Output power levels were also measured from two miniature solar cells; which provided a wide range of output power (~100 to 1400 microwatts), depending on the light type & distance from the source. In summary, system power consumption may be reduced by: 1) removing the load from the energy harvesting & storage elements while charging, 2) by using sleep modes in between samples, 3) pulsing excitation to the sensing and signal conditioning elements in between samples, and 4) by recording and/or averaging, rather than frequently transmitting, sensor data.

  18. Utility aspects of space power: Load management versus source management

    NASA Astrophysics Data System (ADS)

    Walls, B.

    1995-07-01

    Electrical power, as an area of study, is relatively young as compared to language, chemistry, physics, mathematics, philosophy, metallurgy, textiles, transportation, or farming. Practically all of the technology that has enabled the huge, continent-spanning power grids that have become ubiquitous in developed countries was developed in the last 150 years. In fact, Tesla's advocacy of alternating current for transmission just won out in the beginning of this century. Despite the novelty of the field as a whole, space power applications are, of course, much newer. This paper looks at the history of space power, and compares it to its older sibling on earth, forming a basis for determining appropriate transitions of technology from the terrestrial realm to space applications.

  19. Utility aspects of space power: Load management versus source management

    NASA Technical Reports Server (NTRS)

    Walls, B.

    1995-01-01

    Electrical power, as an area of study, is relatively young as compared to language, chemistry, physics, mathematics, philosophy, metallurgy, textiles, transportation, or farming. Practically all of the technology that has enabled the huge, continent-spanning power grids that have become ubiquitous in developed countries was developed in the last 150 years. In fact, Tesla's advocacy of alternating current for transmission just won out in the beginning of this century. Despite the novelty of the field as a whole, space power applications are, of course, much newer. This paper looks at the history of space power, and compares it to its older sibling on earth, forming a basis for determining appropriate transitions of technology from the terrestrial realm to space applications.

  20. Power control and management of the grid containing largescale wind power systems

    NASA Astrophysics Data System (ADS)

    Aula, Fadhil Toufick

    The ever increasing demand for electricity has driven many countries toward the installation of new generation facilities. However, concerns such as environmental pollution and global warming issues, clean energy sources, high costs associated with installation of new conventional power plants, and fossil fuels depletion have created many interests in finding alternatives to conventional fossil fuels for generating electricity. Wind energy is one of the most rapidly growing renewable power sources and wind power generations have been increasingly demanded as an alternative to the conventional fossil fuels. However, wind power fluctuates due to variation of wind speed. Therefore, large-scale integration of wind energy conversion systems is a threat to the stability and reliability of utility grids containing these systems. They disturb the balance between power generation and consumption, affect the quality of the electricity, and complicate load sharing and load distribution managing and planning. Overall, wind power systems do not help in providing any services such as operating and regulating reserves to the power grid. In order to resolve these issues, research has been conducted in utilizing weather forecasting data to improve the performance of the wind power system, reduce the influence of the fluctuations, and plan power management of the grid containing large-scale wind power systems which consist of doubly-fed induction generator based energy conversion system. The aims of this research, my dissertation, are to provide new methods for: smoothing the output power of the wind power systems and reducing the influence of their fluctuations, power managing and planning of a grid containing these systems and other conventional power plants, and providing a new structure of implementing of latest microprocessor technology for controlling and managing the operation of the wind power system. In this research, in order to reduce and smooth the fluctuations, two

  1. BAAL/CUP Seminars 2009

    ERIC Educational Resources Information Center

    Cutting, Joan; Murphy, Brona

    2010-01-01

    The seminar, organised by Joan Cutting and Brona Murphy, aimed: (1) to bring together researchers involved in both emergent and established academic corpora (written and spoken) as well as linguists, lecturers and teachers researching in education, be it language teaching, language-teacher training or continuing professional development in…

  2. Geosynchronous Meteorological Satellite Data Seminar

    NASA Technical Reports Server (NTRS)

    1976-01-01

    A seminar was organized by NASA to acquaint the meteorological community with data now available, and data scheduled to be available in the future, from geosynchronous meteorological satellites. The twenty-four papers were presented in three half-day sessions in addition to tours of the Image Display and LANDSAT Processing Facilities during the afternoon of the second day.

  3. Seminar on Usher's Syndrome: Proceedings.

    ERIC Educational Resources Information Center

    Rochester School for the Deaf, NY.

    Summarized are the presentation of M. Vernon and the Comments of primary panelists from a seminar on Usher's Syndrome, a genetic disease involving congenital deafness and progressive loss of vision due to retinitis pigmentosa. The following topics are addressed: genetics today, nature of Usher's Syndrome, symptoms, prevalence, lay diagnosis for…

  4. Freshman Seminar: A New Orientation.

    ERIC Educational Resources Information Center

    Cohen, Robert D.; Jody, Ruth

    To help schools recruit and retain their students without lowering academic standards, a full semester freshman seminar designed to train new college students in the skills they will need is proposed. The importance of this approach in light of the growing competition among colleges and universities to attract students is discussed. Increased…

  5. Hybrid electric vehicle power management system

    DOEpatents

    Bissontz, Jay E.

    2015-08-25

    Level voltage levels/states of charge are maintained among a plurality of high voltage DC electrical storage devices/traction battery packs that are arrayed in series to support operation of a hybrid electric vehicle drive train. Each high voltage DC electrical storage device supports a high voltage power bus, to which at least one controllable load is connected, and at least a first lower voltage level electrical distribution system. The rate of power transfer from the high voltage DC electrical storage devices to the at least first lower voltage electrical distribution system is controlled by DC-DC converters.

  6. Automation Power Energy Management Strategy for Mobile Telecom Industry

    NASA Astrophysics Data System (ADS)

    Hwang, Jong-Ching; Chen, Jung-Chin; Pan, Jeng-Shyang; Huang, Yi-Chao

    The aim of this research is to study the power energy cost reduction of the mobile telecom industry through the supervisor control and data acquisition (SCADA) system application during globalization and liberalization competition. Yet this management system can be proposed functions: operating monitors, the analysis on load characteristics and dropping the cost of management.

  7. Planning and Resource Management in an Intelligent Automated Power Management System

    NASA Technical Reports Server (NTRS)

    Morris, Robert A.

    1991-01-01

    Power system management is a process of guiding a power system towards the objective of continuous supply of electrical power to a set of loads. Spacecraft power system management requires planning and scheduling, since electrical power is a scarce resource in space. The automation of power system management for future spacecraft has been recognized as an important R&D goal. Several automation technologies have emerged including the use of expert systems for automating human problem solving capabilities such as rule based expert system for fault diagnosis and load scheduling. It is questionable whether current generation expert system technology is applicable for power system management in space. The objective of the ADEPTS (ADvanced Electrical Power management Techniques for Space systems) is to study new techniques for power management automation. These techniques involve integrating current expert system technology with that of parallel and distributed computing, as well as a distributed, object-oriented approach to software design. The focus of the current study is the integration of new procedures for automatically planning and scheduling loads with procedures for performing fault diagnosis and control. The objective is the concurrent execution of both sets of tasks on separate transputer processors, thus adding parallelism to the overall management process.

  8. Automated management of power systems. [for future planetary spacecraft

    NASA Technical Reports Server (NTRS)

    Imamura, M. S.; Bridgeforth, A.

    1979-01-01

    APSM (Automated Power System Management) is a technology readiness program underway to develop, evaluate, and demonstrate various techniques involved in power system monitoring, as well as computational and control functions. The demonstration breadboard consists of the Viking Orbiter '75 power subassembly breadboard modified to incorporate dedicated microprocessors and digital interface circuits, as well as test support equipment for both spacecraft and ground computer simulation, fault simulation, and data acquisition.

  9. The Power of Outdoor Management Development.

    ERIC Educational Resources Information Center

    McEvoy, Glenn M.; Buller, Paul F.

    1997-01-01

    Effective outdoor management development programs have certain features: emotional intensity, psychological safety, consequences, enhancement of self-confidence, use of metaphors, unpredictability, peak performance experiences, multiple skill/knowledge types, development of the whole person, and focus on transfer. They succeed because they sustain…

  10. Management of National Nuclear Power Programs for assured safety

    SciTech Connect

    Connolly, T.J.

    1985-01-01

    Topics discussed in this report include: nuclear utility organization; before the Florida Public Service Commission in re: St. Lucie Unit No. 2 cost recovery; nuclear reliability improvement and safety operations; nuclear utility management; training of nuclear facility personnel; US experience in key areas of nuclear safety; the US Nuclear Regulatory Commission - function and process; regulatory considerations of the risk of nuclear power plants; overview of the processes of reliability and risk management; management significance of risk analysis; international and domestic institutional issues for peaceful nuclear uses; the role of the Institute of Nuclear Power Operations (INPO); and nuclear safety activities of the International Atomic Energy Agency (IAEA).

  11. Open standards for unattended sensors (OSUS) power managed controller

    NASA Astrophysics Data System (ADS)

    Rohrer, Matt; Porter, Rich; Fish, Robert; Knobler, Ron

    2014-06-01

    The Open Standards for Unattended Sensors (OSUS) program, formerly named Terra Harvest, was launched in 2009 to develop an open, integrated battlefield unattended ground sensors (UGS) architecture that ensures interoperability among disparate UGS components and systems. McQ has developed a power managed controller, which is a rugged fielded device that runs an embedded Linux operating system using an open Java software architecture, runs for over 30 days on a small battery pack, and provides various critical functions including the required management, monitoring, and control functions. The OSUS power managed controller system overview, design, and compatibility with other systems will be discussed.

  12. Heat Management in Thermoelectric Power Generators.

    PubMed

    Zebarjadi, M

    2016-01-01

    Thermoelectric power generators are used to convert heat into electricity. Like any other heat engine, the performance of a thermoelectric generator increases as the temperature difference on the sides increases. It is generally assumed that as more heat is forced through the thermoelectric legs, their performance increases. Therefore, insulations are typically used to minimize the heat losses and to confine the heat transport through the thermoelectric legs. In this paper we show that to some extend it is beneficial to purposely open heat loss channels in order to establish a larger temperature gradient and therefore to increase the overall efficiency and achieve larger electric power output. We define a modified Biot number (Bi) as an indicator of requirements for sidewall insulation. We show cooling from sidewalls increases the efficiency for Bi values less than one, and decreases the efficiency for Bi values larger than one. PMID:27033717

  13. Heat Management in Thermoelectric Power Generators

    NASA Astrophysics Data System (ADS)

    Zebarjadi, M.

    2016-04-01

    Thermoelectric power generators are used to convert heat into electricity. Like any other heat engine, the performance of a thermoelectric generator increases as the temperature difference on the sides increases. It is generally assumed that as more heat is forced through the thermoelectric legs, their performance increases. Therefore, insulations are typically used to minimize the heat losses and to confine the heat transport through the thermoelectric legs. In this paper we show that to some extend it is beneficial to purposely open heat loss channels in order to establish a larger temperature gradient and therefore to increase the overall efficiency and achieve larger electric power output. We define a modified Biot number (Bi) as an indicator of requirements for sidewall insulation. We show cooling from sidewalls increases the efficiency for Bi values less than one, and decreases the efficiency for Bi values larger than one.

  14. Heat Management in Thermoelectric Power Generators

    PubMed Central

    Zebarjadi, M.

    2016-01-01

    Thermoelectric power generators are used to convert heat into electricity. Like any other heat engine, the performance of a thermoelectric generator increases as the temperature difference on the sides increases. It is generally assumed that as more heat is forced through the thermoelectric legs, their performance increases. Therefore, insulations are typically used to minimize the heat losses and to confine the heat transport through the thermoelectric legs. In this paper we show that to some extend it is beneficial to purposely open heat loss channels in order to establish a larger temperature gradient and therefore to increase the overall efficiency and achieve larger electric power output. We define a modified Biot number (Bi) as an indicator of requirements for sidewall insulation. We show cooling from sidewalls increases the efficiency for Bi values less than one, and decreases the efficiency for Bi values larger than one. PMID:27033717

  15. Power Management Techniques for Data Centers: A Survey

    SciTech Connect

    Mittal, Sparsh

    2014-07-01

    With growing use of internet and exponential growth in amount of data to be stored and processed (known as ``big data''), the size of data centers has greatly increased. This, however, has resulted in significant increase in the power consumption of the data centers. For this reason, managing power consumption of data centers has become essential. In this paper, we highlight the need of achieving energy efficiency in data centers and survey several recent architectural techniques designed for power management of data centers. We also present a classification of these techniques based on their characteristics. This paper aims to provide insights into the techniques for improving energy efficiency of data centers and encourage the designers to invent novel solutions for managing the large power dissipation of data centers.

  16. Environmental Management.

    ERIC Educational Resources Information Center

    Bandhu, Desh, Ed.

    The Indian Environmental Society, in association with the International Programme on Environmental Management Education, organized two seminars on World Environment Day and Environmental Impact Assessment during June 1980. A large number of papers on various aspects of environmental management were presented during the seminars. The papers…

  17. High performance monolithic power management system with dynamic maximum power point tracking for microbial fuel cells.

    PubMed

    Erbay, Celal; Carreon-Bautista, Salvador; Sanchez-Sinencio, Edgar; Han, Arum

    2014-12-01

    Microbial fuel cell (MFC) that can directly generate electricity from organic waste or biomass is a promising renewable and clean technology. However, low power and low voltage output of MFCs typically do not allow directly operating most electrical applications, whether it is supplementing electricity to wastewater treatment plants or for powering autonomous wireless sensor networks. Power management systems (PMSs) can overcome this limitation by boosting the MFC output voltage and managing the power for maximum efficiency. We present a monolithic low-power-consuming PMS integrated circuit (IC) chip capable of dynamic maximum power point tracking (MPPT) to maximize the extracted power from MFCs, regardless of the power and voltage fluctuations from MFCs over time. The proposed PMS continuously detects the maximum power point (MPP) of the MFC and matches the load impedance of the PMS for maximum efficiency. The system also operates autonomously by directly drawing power from the MFC itself without any external power. The overall system efficiency, defined as the ratio between input energy from the MFC and output energy stored into the supercapacitor of the PMS, was 30%. As a demonstration, the PMS connected to a 240 mL two-chamber MFC (generating 0.4 V and 512 μW at MPP) successfully powered a wireless temperature sensor that requires a voltage of 2.5 V and consumes power of 85 mW each time it transmit the sensor data, and successfully transmitted a sensor reading every 7.5 min. The PMS also efficiently managed the power output of a lower-power producing MFC, demonstrating that the PMS works efficiently at various MFC power output level. PMID:25365216

  18. Spent fuel management at the Northern States Power Company

    SciTech Connect

    Closs, J.; Kress, L.

    1996-05-01

    The disposal of nuclear waste has become a critical factor in the continued operation of several commercial nuclear power plants in the US. As the debate continues, spent fuel pools continue to fill and plants edge closer to premature shutdown. This article describes the extensive spent fuel management program (ISFSI) of the Northern States Power Company (NSP). NSP owns and operates two nuclear power plants (Monticello and Prairie Island). Despite political opposition and legal restraint the program has successfully resolved storage limitations at its nuclear plants and has provided for the continuation of power at NSP. Projected plans for the future are also discussed.

  19. Study of solar array switching power management technology for space power system

    NASA Technical Reports Server (NTRS)

    Cassinelli, J. E.

    1982-01-01

    This report documents work performed on the Solar Array Switching Power Management Study. Mission characteristics for three missions were defined to the depth necessary to determine their power management requirements. Solar array switching concepts were identified that could safisfy the mission requirements. These switching concepts were compared with a conventional buck regulator system on the basis of cost, weight and volume, reliability, efficiency and thermal control. For the missions reviewed, solar array switching provided significant advantages in all areas of comparison.

  20. Study of solar array switching power management technology for space power system

    NASA Technical Reports Server (NTRS)

    Cassinelli, J. E.

    1982-01-01

    This report documents work performed on the Solar Array Switching Power Management Study. Mission characteristics for three missions were defined to the depth necessary to determine their power management requirements. Solar array switching concepts which could satisfy the mission requirements were identified. The switching concepts were compared with a conventional buck regulator system for cost, weight and volume, reliability, efficiency and thermal control. Solar array switching provided significant advantages in all areas of comparison for the reviewed missions.

  1. Smart Energy Management of Multiple Full Cell Powered Applications

    SciTech Connect

    Mohammad S. Alam

    2007-04-23

    In this research project the University of South Alabama research team has been investigating smart energy management and control of multiple fuel cell power sources when subjected to varying demands of electrical and thermal loads together with demands of hydrogen production. This research has focused on finding the optimal schedule of the multiple fuel cell power plants in terms of electric, thermal and hydrogen energy. The optimal schedule is expected to yield the lowest operating cost. Our team is also investigating the possibility of generating hydrogen using photoelectrochemical (PEC) solar cells through finding materials for efficient light harvesting photoanodes. The goal is to develop an efficient and cost effective PEC solar cell system for direct electrolysis of water. In addition, models for hydrogen production, purification, and storage will be developed. The results obtained and the data collected will be then used to develop a smart energy management algorithm whose function is to maximize energy conservation within a managed set of appliances, thereby lowering O/M costs of the Fuel Cell power plant (FCPP), and allowing more hydrogen generation opportunities. The Smart Energy Management and Control (SEMaC) software, developed earlier, controls electrical loads in an individual home to achieve load management objectives such that the total power consumption of a typical residential home remains below the available power generated from a fuel cell. In this project, the research team will leverage the SEMaC algorithm developed earlier to create a neighborhood level control system.

  2. e-Seminar lecture recording and distribution system

    NASA Astrophysics Data System (ADS)

    Steinmetz, Arnd A.; Kienzle, Martin G.

    2000-12-01

    e-Seminar is an IBM-Research internal prototype platform to allow all IBM-Research employees access to videos and slides of talks, seminars, presentations and other events at any IBM- Research campus worldwide. The platform facilitates an increased use of digital video by lowering the cost and complexity thresholds for the use of video in live and in on demand applications. The e-Seminar system therefore increases the leverage of intellectual property, and helps to improve the communication between the laboratories of the IBM-Research Division. All of the above is reached through use of a distributed Video-on-Demand system on all sites of the IBM- Research Division. It is a highly integrative project, assembling tools, techniques and insights from a broad variety of knowledge fields including but not limited to networking, video recording/encoding, data streaming, video analysis, HCI, MM authoring, data visualizing and distributed systems management. The e-Seminar system is designed to serve as a base platform to perform research on the broad range of all these areas. Currently ongoing research in the project explores how such a system can be built and operated with the least amount of people involved while at the same time reducing the breadth and depth of skills necessary. Additional research is done in the area of real time analysis and indexing of the given material in ways that are relevant to the teaching purpose of the system. Also new ways of video network caching are explored.

  3. Evaluation of power control concepts using the PMAD systems test bed. [Power Management and Distribution

    NASA Technical Reports Server (NTRS)

    Beach, R. F.; Kimnach, G. L.; Jett, T. A.; Trash, L. M.

    1989-01-01

    The Lewis Research Center's Power Management and Distribution (PMAD) System testbed and its use in the evaluation of control concepts applicable to the NASA Space Station Freedom electric power system (EPS) are described. The facility was constructed to allow testing of control hardware and software in an environment functionally similar to the space station electric power system. Control hardware and software have been developed to allow operation of the testbed power system in a manner similar to a supervisory control and data acquisition (SCADA) system employed by utility power systems for control. The system hardware and software are described.

  4. Power resource management and low-power remote wireless RF electronics

    NASA Astrophysics Data System (ADS)

    Jannson, Tomasz; Forrester, Thomas; Degrood, Kevin; Lee, Kang; Gans, Eric; Walter, Kevin

    2009-05-01

    Battery power resource management becomes a critical issue in the case of self-powered remote wireless RF electronics, where the basic parameter is time of system operation before battery recharging or battery replacement. In such cases, very often related to physical protection against antitampering (AT), proper theoretical modeling of a battery driven power supply in the context of a given digital electronic system is of utmost importance. Such modeling should include various types of batteries (primary and secondary), various self-discharge processes in different temperatures, and even energy harvesting, the latter to supply power for long-term content, low-power electronic subsystems. In this paper we analyze simple modeling of resource power management, including variations of all of these parameters and energy harvesting.

  5. Simulation of demand-response power management in smart city

    NASA Astrophysics Data System (ADS)

    Kadam, Kshitija

    Smart Grids manage energy efficiently through intelligent monitoring and control of all the components connected to the electrical grid. Advanced digital technology, combined with sensors and power electronics, can greatly improve transmission line efficiency. This thesis proposed a model of a deregulated grid which supplied power to diverse set of consumers and allowed them to participate in decision making process through two-way communication. The deregulated market encourages competition at the generation and distribution levels through communication with the central system operator. A software platform was developed and executed to manage the communication, as well for energy management of the overall system. It also demonstrated self-healing property of the system in case a fault occurs, resulting in an outage. The system not only recovered from the fault but managed to do so in a short time with no/minimum human involvement.

  6. Development of automated power system management techniques. [spacecraft design

    NASA Technical Reports Server (NTRS)

    Imamura, M. S.; Moser, R. L.; Skelly, L. A.; Weiner, H.

    1978-01-01

    The basic approach in the automated power system management (APSM) implementation is to use one central microprocessor for the overall power system supervision and several local microprocessors dedicated to one or more major subassemblies to perform simple monitoring and control functions. Communication between the central and each local processor is through a dedicated two-wire network employing serial data transfer. The block diagrams of the processors, the data bus characteristics, and the software functions and organization are presented.

  7. Randomized Trial of Problem-Based versus Didactic Seminars for Disseminating Evidence-Based Guidelines on Asthma Management to Primary Care Physicians

    ERIC Educational Resources Information Center

    White, Marc; Michaud, Gaetane; Pachev, George; Lirenman, David; Kolenc, Anna; FitzGerald, J. Mark

    2004-01-01

    Introduction: This randomized controlled trial (RCT) investigated the effectiveness of and satisfaction with small-group problem-based learning (PBL) versus a didactic lecture approach to guideline dissemination in asthma management controlling for confounders common in comparative educational interventions. Methods: Sites were selected as either…

  8. Aging management guideline for commercial nuclear power plants - heat exchangers

    SciTech Connect

    Booker, S.; Lehnert, D.; Daavettila, N.; Palop, E.

    1994-06-01

    This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in commercial nuclear power plant heat exchangers important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

  9. Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices

    DOEpatents

    Chassin, David P.; Donnelly, Matthew K.; Dagle, Jeffery E.

    2006-12-12

    Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices are described. In one aspect, an electrical power distribution control method includes providing electrical energy from an electrical power distribution system, applying the electrical energy to a load, providing a plurality of different values for a threshold at a plurality of moments in time and corresponding to an electrical characteristic of the electrical energy, and adjusting an amount of the electrical energy applied to the load responsive to an electrical characteristic of the electrical energy triggering one of the values of the threshold at the respective moment in time.

  10. Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices

    DOEpatents

    Chassin, David P.; Donnelly, Matthew K.; Dagle, Jeffery E.

    2011-12-06

    Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices are described. In one aspect, an electrical power distribution control method includes providing electrical energy from an electrical power distribution system, applying the electrical energy to a load, providing a plurality of different values for a threshold at a plurality of moments in time and corresponding to an electrical characteristic of the electrical energy, and adjusting an amount of the electrical energy applied to the load responsive to an electrical characteristic of the electrical energy triggering one of the values of the threshold at the respective moment in time.

  11. Space station automation of common module power management and distribution

    NASA Technical Reports Server (NTRS)

    Miller, W.; Jones, E.; Ashworth, B.; Riedesel, J.; Myers, C.; Freeman, K.; Steele, D.; Palmer, R.; Walsh, R.; Gohring, J.

    1989-01-01

    The purpose is to automate a breadboard level Power Management and Distribution (PMAD) system which possesses many functional characteristics of a specified Space Station power system. The automation system was built upon 20 kHz ac source with redundancy of the power buses. There are two power distribution control units which furnish power to six load centers which in turn enable load circuits based upon a system generated schedule. The progress in building this specified autonomous system is described. Automation of Space Station Module PMAD was accomplished by segmenting the complete task in the following four independent tasks: (1) develop a detailed approach for PMAD automation; (2) define the software and hardware elements of automation; (3) develop the automation system for the PMAD breadboard; and (4) select an appropriate host processing environment.

  12. A Hybrid Power Management (HPM) Based Vehicle Architecture

    NASA Technical Reports Server (NTRS)

    Eichenberg, Dennis J.

    2011-01-01

    Society desires vehicles with reduced fuel consumption and reduced emissions. This presents a challenge and an opportunity for industry and the government. The NASA John H. Glenn Research Center (GRC) has developed a Hybrid Power Management (HPM) based vehicle architecture for space and terrestrial vehicles. GRC's Electrical and Electromagnetics Branch of the Avionics and Electrical Systems Division initiated the HPM Program for the GRC Technology Transfer and Partnership Office. HPM is the innovative integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications. The appropriate application and control of the various power devices significantly improves overall system performance and efficiency. The basic vehicle architecture consists of a primary power source, and possibly other power sources, providing all power to a common energy storage system, which is used to power the drive motors and vehicle accessory systems, as well as provide power as an emergency power system. Each component is independent, permitting it to be optimized for its intended purpose. This flexible vehicle architecture can be applied to all vehicles to considerably improve system efficiency, reliability, safety, security, and performance. This unique vehicle architecture has the potential to alleviate global energy concerns, improve the environment, stimulate the economy, and enable new missions.

  13. Saving Energy and Money: A Lesson in Computer Power Management

    ERIC Educational Resources Information Center

    Lazaros, Edward J.; Hua, David

    2012-01-01

    In this activity, students will develop an understanding of the economic impact of technology by estimating the cost savings of power management strategies in the classroom. Students will learn how to adjust computer display settings to influence the impact that the computer has on the financial burden to the school. They will use mathematics to…

  14. Automated power management within a Space Station module

    NASA Technical Reports Server (NTRS)

    Miller, William D.; Jones, Ellen F.

    1988-01-01

    An effort to advance and develop techniques and approaches for automation and autonomy in power management and distribution with a Space Station module is described. The applicable breadboard architecture is discussed, summarizing the function partitioning. The breadboard software is briefly addressed, and the breadboard automated operation is described in detail.

  15. The SPi chip as an integrated power management device for serial powering of future HEP experiments

    SciTech Connect

    Trimpl, M.; Deptuch, G.; Gingu, C.; Yarema, R.; Holt, R.; Weber, M.; Kierstead, J.; Lynn, D.; /Brookhaven

    2009-01-01

    Serial powering is one viable and very efficient way to distribute power to future high energy physics (HEP) experiments. One promising way to realize serial powering is to have a power management device on the module level that provides the necessary voltage levels and features monitoring functionality. The SPi (Serial Powering Interface) chip is such a power manager and is designed to meet the requirements imposed by current SLHC upgrade plans. It incorporates a programmable shunt regulator, two linear regulators, current mode ADCs to monitor the current distribution on the module, over-current detection, and also provides module power-down capabilities. Compared to serially powered setups that use discrete components, the SPi offers a higher level of functionality in much less real estate and is designed to be radiation tolerant. Bump bonding techniques are used for chip on board assembly providing the most reliable connection at lowest impedance. This paper gives an overview of the SPi and outlines the main building blocks of the chip. First stand alone tests are presented showing that the chip is ready for operation in serially powered setups.

  16. Artificial endocrine controller for power management in robotic systems.

    PubMed

    Sauzé, Colin; Neal, Mark

    2013-12-01

    The robots that operate autonomously for extended periods in remote environments are often limited to gather only small amounts of power through photovoltaic solar panels. Such limited power budgets make power management critical to the success of the robot's mission. Artificial endocrine controllers, inspired by the mammalian endocrine system, have shown potential as a method for managing competing demands, gradually switching between behaviors, synchronizing behavior with external events, and maintaining a stable internal state of the robot. This paper reports the results obtained using these methods to manage power in an autonomous sailing robot. Artificial neural networks are used for sail and rudder control, while an artificial endocrine controller modulates the magnitude of actuator movements in response to battery or sunlight levels. Experiments are performed both in simulation and using a real robot. In simulation a 13-fold reduction in median power consumption is achieved; in the robot this is reduced to a twofold reduction because of the limitations of the simulation model. Additional simulations of a long term mission demonstrate the controller's ability to make gradual behavioral transitions and to synchronize behaviors with diurnal and seasonal changes in sunlight levels. PMID:24805216

  17. Power Electronics Thermal Management R&D (Presentation)

    SciTech Connect

    Waye, S.

    2014-11-01

    This project will investigate and develop thermal-management strategies for wide bandgap (WBG)-based power electronics systems. Research will be carried out to deal with thermal aspects at the module- and system-level. Module-level research will focus on die- and substrate-integrated cooling strategies and heat-transfer enhancement technologies. System-level research will focus on thermal-management strategies for the entire power electronics system to enable smart packaging solutions. One challenge with WBG device-based power electronics is that although losses in the form of heat may be lower, the footprint of the components is also likely to be reduced to reduce cost, weight, and volume. Combined with higher operational temperatures, this creates higher heat fluxes which much be removed from a smaller footprint, requiring advanced cooling strategies.

  18. Using ensemble NWP wind power forecasts to improve national power system management

    NASA Astrophysics Data System (ADS)

    Cannon, D.; Brayshaw, D.; Methven, J.; Coker, P.; Lenaghan, D.

    2014-12-01

    National power systems are becoming increasingly sensitive to atmospheric variability as generation from wind (and other renewables) increases. As such, the days-ahead predictability of wind power has significant implications for power system management. At this time horizon, power system operators plan transmission line outages for maintenance. In addition, forecast users begin to form backup strategies to account for the uncertainty in wind power predictions. Under-estimating this uncertainty could result in a failure to meet system security standards, or in the worst instance, a shortfall in total electricity supply. On the other hand, overly conservative assumptions about the forecast uncertainty incur costs associated with the unnecessary holding of reserve power. Using the power system of Great Britain (GB) as an example, we construct time series of GB-total wind power output using wind speeds from either reanalyses or global weather forecasts. To validate the accuracy of these data sets, wind power reconstructions using reanalyses and forecast analyses over a recent period are compared to measured GB-total power output. The results are found to be highly correlated on time scales greater than around 6 hours. Results are presented using ensemble wind power forecasts from several national and international forecast centres (obtained through TIGGE). Firstly, the skill with which global ensemble forecasts can represent the uncertainty in the GB-total power output at up to 10 days ahead is quantified. Following this, novel ensemble forecast metrics are developed to improve estimates of forecast uncertainty within the context of power system operations, thus enabling the development of more cost effective strategies. Finally, the predictability of extreme events such as prolonged low wind periods or rapid changes in wind power output are examined in detail. These events, if poorly forecast, induce high stress scenarios that could threaten the security of the power

  19. INDOOR AIR VAPOR INTRUSION SEMINAR INTRODUCTION

    EPA Science Inventory

    This seminar is sponsored by the ORD in collaboration with the Office of Solid Waste and Emergency Response. The goal of this seminar is to present information and guidance to evaluate, assess and characterize chemical vapor pathways migrating into structures resulting from conta...

  20. THE COMMUNITY RESOURCES POOL SEMINAR DESCRIPTIONS.

    ERIC Educational Resources Information Center

    SATURDAY MORNING SEMINARS FOR ELEMENTARY AND SECONDARY SCHOOL STUDENTS WERE CONDUCTED WITH PROFESSIONAL RESOURCE PERSONS AS TEACHERS. THE PROGRAM WAS VOLUNTARY. THREE 9-WEEK SEMINARS WERE CONDUCTED IN THE FALL. SUBJECTS STUDIED WERE MICROBIOLOGY AND ZOOLOGY (6TH GRADE), COMPUTER MATH (7TH AND 8TH GRADE), AND CHEMISTRY (GRADES 9-12). DURING THE…

  1. A Program Evaluation of a Seminar Program

    ERIC Educational Resources Information Center

    Lyons, Robert Dale, Jr.

    2013-01-01

    When students do not score well on standardized tests, their school can suffer. In an attempt to improve standardized test scores, a district placed students into a program called Seminar to help them work on weak areas of content through personalized instruction. The purpose of this project study was to assess if the Seminar program had a…

  2. Literature Seminars for Gifted and Talented Students.

    ERIC Educational Resources Information Center

    Dixon, Felicia A.

    1993-01-01

    The literature seminar format meets the needs of gifted students for intellectual challenges, complex curricular experiences, creative research and writing activities, and stimulating interactions. Three seminars conducted in the English curriculum at a special school for gifted students are described: "Dickens and the Industrial…

  3. The Watergate Seminar: Non-Traditional College

    ERIC Educational Resources Information Center

    Harrison, Joseph

    1977-01-01

    Empire State College, a non-traditional unit of the State University of New York, conducted a series of seminars related to the Watergate Affair, at which 23 students took part in this intensive exploration of a Watergate. It provided tremendous opportunity for insight into the concept of seminars within a college. (Author)

  4. USEPA SEMINARS ON INDOOR AIR VAPOR INTRUSION

    EPA Science Inventory

    This interactive CD has been developed to introduce you to the seminar speakers and their presentation topics. It includes introduction and overview video clips, an interactive class exercise that explains how to interpret and use the new EPA IAVI Guidance, a scrolling seminar vi...

  5. VOLATILE ORGANIC COMPOUNDS (VOC) RECOVERY SEMINAR

    EPA Science Inventory

    The purpose of the seminar was to bring researchers, technology developers, and industry representatives together to discuss recovery technologies and techniques for VOCs. The seminar focused on the specific VOC recovery needs of industry and on case studies that summarize effec...

  6. Forecast Inaccuracies in Power Plant Projects From Project Managers' Perspectives

    NASA Astrophysics Data System (ADS)

    Sanabria, Orlando

    Guided by organizational theory, this phenomenological study explored the factors affecting forecast preparation and inaccuracies during the construction of fossil fuel-fired power plants in the United States. Forecast inaccuracies can create financial stress and uncertain profits during the project construction phase. A combination of purposeful and snowball sampling supported the selection of participants. Twenty project managers with over 15 years of experience in power generation and project experience across the United States were interviewed within a 2-month period. From the inductive codification and descriptive analysis, 5 themes emerged: (a) project monitoring, (b) cost control, (c) management review frequency, (d) factors to achieve a precise forecast, and (e) factors causing forecast inaccuracies. The findings of the study showed the factors necessary to achieve a precise forecast includes a detailed project schedule, accurate labor cost estimates, monthly project reviews and risk assessment, and proper utilization of accounting systems to monitor costs. The primary factors reported as causing forecast inaccuracies were cost overruns by subcontractors, scope gaps, labor cost and availability of labor, and equipment and material cost. Results of this study could improve planning accuracy and the effective use of resources during construction of power plants. The study results could contribute to social change by providing a framework to project managers to lessen forecast inaccuracies, and promote construction of power plants that will generate employment opportunities and economic development.

  7. SPS energy conversion and power management workshop. Final report

    SciTech Connect

    Not Available

    1980-06-01

    In 1977 a four year study, the concept Development and Evaluation Program, was initiated by the US Department of Energy and the National Aeronautics and Space Administration. As part of this program, a series of peer reviews were carried out within the technical community to allow available information on SPS to be sifted, examined and, if need be, challenged. The SPS Energy Conversion and Power Management Workshop, held in Huntsville, Alabama, February 5 to 7, 1980, was one of these reviews. The results of studies in this particular field were presented to an audience of carefully selected scientists and engineers. This first report summarizes the results of that peer review. It is not intended to be an exhaustive treatment of the subject. Rather, it is designed to look at the SPS energy conversion and power management options in breadth, not depth, to try to foresee any troublesome and/or potentially unresolvable problems and to identify the most promising areas for future research and development. Topics include photovoltaic conversion, solar thermal conversion, and electric power distribution processing and power management. (WHK)

  8. Thermal management system options for high power space platforms

    NASA Technical Reports Server (NTRS)

    Sadunas, J. A.; Lehtinen, A.; Parish, R.

    1985-01-01

    Thermal Management System (TMS) design options for a high power (75kWe), low earth orbit, multimodule space platform were investigated. The approach taken was to establish a baseline TMS representative of current technology, and to make incremental improvements through successive subsystem trades that lead to a candidate TMS. The TMS trades included centralized and decentralized transport, single-phase and two-phase transport, alternate working fluids, liquid loop and heat pipe radiators, deployed fixed, body mounted and steerable radiators, and thermal storage. The subsystem options were evaluated against criteria such as weight, TMS power requirement, reliability, system isothermality penalty, and growth potential.

  9. Issues in radioactive-waste management for fusion power

    SciTech Connect

    Maninger, R.C.; Dorn, D.W.

    1982-10-12

    Analysis of recent conceptual designs reveals that commercial fusion power systems will raise issues of occupational and public health and safety. This paper focuses on radioactive wastes from fusion reactor materials activated by neutrons. The analysis shows that different selections of materials and neutronic designs can make differences in orders-of-magnitude of the kinds and amounts of radioactivity to be expected. By careful and early evaluation of the impacts of the selections on waste management, designers can produce fusion power systems with radiation from waste well below today's limits for occupational and public health and safety.

  10. Power management and distribution considerations for a lunar base

    NASA Technical Reports Server (NTRS)

    Kenny, Barbara H.; Coleman, Anthony S.

    1991-01-01

    Design philosophies and technology needs for the power management and distribution (PMAD) portion of a lunar base power system are discussed. A process is described whereby mission planners may proceed from a knowledge of the PMAD functions and mission performance requirements to a definition of design options and technology needs. Current research efforts at the NASA LRC to meet the PMAD system needs for a Lunar base are described. Based on the requirements, the lunar base PMAD is seen as best being accomplished by a utility like system, although with some additional demands including autonomous operation and scheduling and accurate, predictive modeling during the design process.

  11. Satellite Power System (SPS) financial/management scenarios

    NASA Technical Reports Server (NTRS)

    Vajk, J. P.

    1978-01-01

    The possible benefits of a Satellite Power System (SPS) program, both domestically and internationally, justify detailed and imaginative investigation of the issues involved in financing and managing such a large-scale program. In this study, ten possible methods of financing a SPS program are identified ranging from pure government agency to private corporations. The following were analyzed and evaluated: (1) capital requirements for SPS; (2) ownership and control; (3) management principles; (4) organizational forms for SPS; (5) criteria for evaluation; (6) detailed description and preliminary evaluation of alternatives; (7) phased approaches; and (8) comparative evaluation. Key issues and observations and recommendations for further study are also presented.

  12. Design of Instantaneous High Power Supply System with power distribution management for portable military devices

    NASA Astrophysics Data System (ADS)

    Kwak, Kiho; Kwak, Dongmin; Yoon, Joohong

    2015-08-01

    A design of an Instantaneous High Power Supply System (IHPSS) with a power distribution management (PDM) for portable military devices is newly addressed. The system includes a power board and a hybrid battery that can not only supply instantaneous high power but also maintain stable operation at critical low temperature (-30 °C). The power leakage and battery overcharge are effectively prevented by the optimal PDM. The performance of the proposed system under the required pulse loads and the operating conditions of a Korean Advanced Combat Rifle employed in the battlefield is modeled with simulations and verified experimentally. The system with the IHPSS charged the fuse setter with 1.7 times higher voltage (8.6 V) than the one without (5.4 V) under the pulse discharging rate (1 A at 0.5 duty, 1 ms) for 500 ms.

  13. Aging Management Guideline for commercial nuclear power plants: Power and distribution transformers

    SciTech Connect

    Toman, G.; Gazdzinski, R.

    1994-05-01

    This Aging Management Guideline (AMG) provides recommended methods for effective detection and mitigation of age-related degradation mechanisms in power and distribution transformers important to license renewal in commercial nuclear power plants. The intent of this AMG to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner which allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

  14. Application of Computer Assisted Energy Analysis Seminar (Pittsburgh, Pennsylvania, April 12-14, 1977).

    ERIC Educational Resources Information Center

    Association of Physical Plant Administrators of Universities and Colleges, Washington, DC.

    The intent of this seminar presentation was to demonstrate that with proper care in selecting and managing energy analysis programs, or in choosing commercial services to accomplish the same purposes, universities and colleges may derive significant benefits from efficient and economical use and management of their facilities. The workbook begins…

  15. Senior Seminar: Across a Department and across The Years

    ERIC Educational Resources Information Center

    Greer, Meredith L.; Ross, Chip

    2013-01-01

    The Department of Mathematics at Bates College has offered a senior seminar capstone course for over a dozen years. In this article, we discuss the coexistence of seminar and thesis, our other capstone experience. We discuss in detail the goals of our seminar, various ways we structure the seminar to accomplish those goals, and methods of…

  16. Increasing Effectiveness of Strategic Planning Seminars through Learning Style

    ERIC Educational Resources Information Center

    Yildirim, Nail

    2010-01-01

    This research tests the effectiveness of taking learning style variables from the Kolb learning model in designing strategic planning seminars. We observe in our research that the participants in the seminar--school principals--positively judge the effectiveness of the seminar. The research also tests the seminar's effectiveness in terms of the…

  17. Induction Seminars as Professional Learning Communities for Beginning Teachers

    ERIC Educational Resources Information Center

    Fresko, Barbara; Nasser-Abu Alhija, Fadia

    2015-01-01

    This paper explores the operation and contribution of induction seminars operated as learning communities for new teachers. Mixed methods were used: 378 new teachers and 29 seminar leaders completed questionnaires, 16 new teachers and 14 seminar leaders were interviewed, and 20 seminar meetings were observed. Findings showed that seminar…

  18. Wireless Instrumentation System and Power Management Scheme Therefore

    NASA Technical Reports Server (NTRS)

    Perotti, Jose (Inventor); Lucena, Angel (Inventor); Eckhoff, Anthony (Inventor); Mata, Carlos T. (Inventor); Blalock, Norman N. (Inventor); Medelius, Pedro J. (Inventor)

    2007-01-01

    A wireless instrumentation system enables a plurality of low power wireless transceivers to transmit measurement data from a plurality of remote station sensors to a central data station accurately and reliably. The system employs a relay based communications scheme where remote stations that cannot communicate directly with the central station due to interference, poor signal strength, etc., are instructed to communicate with other of the remote stations that act as relays to the central station. A unique power management scheme is also employed to minimize power usage at each remote station and thereby maximize battery life. Each of the remote stations prefembly employs a modular design to facilitate easy reconfiguration of the stations as required.

  19. Managing Scarce Water Resources in China's Coal Power Industry.

    PubMed

    Zhang, Chao; Zhong, Lijin; Fu, Xiaotian; Zhao, Zhongnan

    2016-06-01

    Coal power generation capacity is expanding rapidly in the arid northwest regions in China. Its impact on water resources is attracting growing concerns from policy-makers, researchers, as well as mass media. This paper briefly describes the situation of electricity-water conflict in China and provides a comprehensive review on a variety of water resources management policies in China's coal power industry. These policies range from mandatory regulations to incentive-based instruments, covering water withdrawal standards, technological requirements on water saving, unconventional water resources utilization (such as reclaimed municipal wastewater, seawater, and mine water), water resources fee, and water permit transfer. Implementing these policies jointly is of crucial importance for alleviating the water stress from the expanding coal power industry in China. PMID:26908125

  20. Managing Scarce Water Resources in China's Coal Power Industry

    NASA Astrophysics Data System (ADS)

    Zhang, Chao; Zhong, Lijin; Fu, Xiaotian; Zhao, Zhongnan

    2016-06-01

    Coal power generation capacity is expanding rapidly in the arid northwest regions in China. Its impact on water resources is attracting growing concerns from policy-makers, researchers, as well as mass media. This paper briefly describes the situation of electricity-water conflict in China and provides a comprehensive review on a variety of water resources management policies in China's coal power industry. These policies range from mandatory regulations to incentive-based instruments, covering water withdrawal standards, technological requirements on water saving, unconventional water resources utilization (such as reclaimed municipal wastewater, seawater, and mine water), water resources fee, and water permit transfer. Implementing these policies jointly is of crucial importance for alleviating the water stress from the expanding coal power industry in China.

  1. Aging management guideline for commercial nuclear power plants-pumps

    SciTech Connect

    Booker, S.; Katz, D.; Daavettila, N.; Lehnert, D.

    1994-03-01

    This Aging Management Guideline (AMG) describes recommended methods for effective detection and mitigation of age-related degradation mechanisms in BWR and PWR commercial nuclear power plant pumps important to license renewal. The intent of this AMG is to assist plant maintenance and operations personnel in maximizing the safe, useful life of these components. It also supports the documentation of effective aging management programs required under the License Renewal Rule 10 CFR Part 54. This AMG is presented in a manner that allows personnel responsible for performance analysis and maintenance to compare their plant-specific aging mechanisms (expected or already experienced) and aging management program activities to the more generic results and recommendations presented herein.

  2. International Trade Union Seminar on Active Manpower Policy, (Vienna, September 17-20, 1963). Final Report. International Seminars 1963-1.

    ERIC Educational Resources Information Center

    Organisation for Economic Cooperation and Development, Paris (France). Social Affairs Div.

    This seminar provided for exchange of current experiences and views on active manpower policy by management and trade unionists in the member countries of the Organization for Economic Cooperation and Development. The present volume consists of a report of the proceedings, the conclusions reached by the participants, and reprints of the three…

  3. A distributed control approach for power and energy management in a notional shipboard power system

    NASA Astrophysics Data System (ADS)

    Shen, Qunying

    The main goal of this thesis is to present a power control module (PCON) based approach for power and energy management and to examine its control capability in shipboard power system (SPS). The proposed control scheme is implemented in a notional medium voltage direct current (MVDC) integrated power system (IPS) for electric ship. To realize the control functions such as ship mode selection, generator launch schedule, blackout monitoring, and fault ride-through, a PCON based distributed power and energy management system (PEMS) is developed. The control scheme is proposed as two-layer hierarchical architecture with system level on the top as the supervisory control and zonal level on the bottom as the decentralized control, which is based on the zonal distribution characteristic of the notional MVDC IPS that was proposed as one of the approaches for Next Generation Integrated Power System (NGIPS) by Norbert Doerry. Several types of modules with different functionalities are used to derive the control scheme in detail for the notional MVDC IPS. Those modules include the power generation module (PGM) that controls the function of generators, the power conversion module (PCM) that controls the functions of DC/DC or DC/AC converters, etc. Among them, the power control module (PCON) plays a critical role in the PEMS. It is the core of the control process. PCONs in the PEMS interact with all the other modules, such as power propulsion module (PPM), energy storage module (ESM), load shedding module (LSHED), and human machine interface (HMI) to realize the control algorithm in PEMS. The proposed control scheme is implemented in real time using the real time digital simulator (RTDS) to verify its validity. To achieve this, a system level energy storage module (SESM) and a zonal level energy storage module (ZESM) are developed in RTDS to cooperate with PCONs to realize the control functionalities. In addition, a load shedding module which takes into account the reliability

  4. High-density power management architecture for portable applications

    NASA Astrophysics Data System (ADS)

    Ahsanuzzaman, S. M.

    This thesis introduces a power management architecture (PMA) and its on-chip implementation, designed for battery-powered portable applications. Compared to conventional two-stage PMA architectures, consisting of a front-end inductive converter followed by a set of point-of-load (PoL) buck converters, the presented PMA has improved power density. The new architecture, named MSC-DB, is based on a hybrid converter topology that combines a fixed ratio multi-output switched capacitor converter (MSC) and a set of differential-input buck (DB) converters, to achieve low volume and high power processing efficiency. The front-end switched capacitor stage has a higher power density than the conventionally used inductive converters. The downstream differential-input buck converters enable tight output voltage regulation, and allow for a drastic reduction of output filter inductors without the need for increasing switching frequency, hence limiting switching losses and improving the efficiency of the system. Furthermore, the new PMA provides battery cells balancing feature, not existing in conventional systems. The PMA architecture is implemented both as a discrete prototype and as an application-specific integrated circuit (IC) module. The on-chip implemented architecture is fabricated in a standard 0.13microm CMOS process and operates at 9.3 MHz switching frequency. Experimental comparisons with a conventional two-cell battery input architecture, providing 15 W of total power in three different voltage outputs, demonstrate up to a 50% reduction in the inductances of the downstream converter stages and up to a 53% reduction in losses, equivalent to the improvement of the power processing efficiency of a 12%. Moreover, the fabricated IC module is co-packaged with low-profile thin-film inductors, to demonstrate the effectiveness of the introduced architecture in reducing the volume of PMAs for portable applications and possibly providing complete on-chip implementation of PMAs

  5. Risk management in the competitive electric power industry

    NASA Astrophysics Data System (ADS)

    Dahlgren, Robert William

    From 1990 until present day, the electric power industry has experienced dramatic changes worldwide. This recent evolution of the power industry has included creation and multiple iterations of competitive wholesale markets in many different forms. The creation of these competitive markets has resulted in increased short-term volatility of power prices. Vertically integrated utilities emerged from years of regulatory controls to now experience the need to perform risk assessment. The goal of this dissertation is to provide background and details of the evolution of market structures combined with examples of how to apply price risk assessment techniques such as Value-at-Risk (VaR). In Chapter 1, the history and evolution of three selected regional markets, PJM, California, and England and Wales is presented. A summary of the commonalities and differences is presented to provide an overview of the rate of transformation of the industry in recent years. The broad area of risk management in the power industry is also explored through a State-of-the-Art Literature Survey. In Chapter 2, an illustration of risk assessment to power trading is presented. The techniques of Value-at-Risk and Conditional Value-at-Risk are introduced and applied to a common scenario. The advantages and limitations of the techniques are compared through observation of their results against the common example. Volatility in the California Power Markets is presented in Chapter 3. This analysis explores the California markets in the summer of 2000 including the application of VaR analysis to the extreme volatility observed during this period. In Chapter 4, CVaR is applied to the same California historical data used in Chapter 3. In addition, the unique application of minimizing the risk of a power portfolio by minimizing CVaR is presented. The application relies on recent research into CVaR whereby the portfolio optimization problem can be reduced to a Linear Programming problem.

  6. Accounting for complementarity to maximize monitoring power for species management.

    PubMed

    Tulloch, Ayesha I T; Chadès, Iadine; Possingham, Hugh P

    2013-10-01

    To choose among conservation actions that may benefit many species, managers need to monitor the consequences of those actions. Decisions about which species to monitor from a suite of different species being managed are hindered by natural variability in populations and uncertainty in several factors: the ability of the monitoring to detect a change, the likelihood of the management action being successful for a species, and how representative species are of one another. However, the literature provides little guidance about how to account for these uncertainties when deciding which species to monitor to determine whether the management actions are delivering outcomes. We devised an approach that applies decision science and selects the best complementary suite of species to monitor to meet specific conservation objectives. We created an index for indicator selection that accounts for the likelihood of successfully detecting a real trend due to a management action and whether that signal provides information about other species. We illustrated the benefit of our approach by analyzing a monitoring program for invasive predator management aimed at recovering 14 native Australian mammals of conservation concern. Our method selected the species that provided more monitoring power at lower cost relative to the current strategy and traditional approaches that consider only a subset of the important considerations. Our benefit function accounted for natural variability in species growth rates, uncertainty in the responses of species to the prescribed action, and how well species represent others. Monitoring programs that ignore uncertainty, likelihood of detecting change, and complementarity between species will be more costly and less efficient and may waste funding that could otherwise be used for management. PMID:24073812

  7. Thermal management in high average power pulsed compression systems

    SciTech Connect

    Wavrik, R.W.; Reed, K.W.; Harjes, H.C.; Weber, G.J.; Butler, M.; Penn, K.J.; Neau, E.L.

    1992-08-01

    High average power repetitively pulsed compression systems offer a potential source of electron beams which may be applied to sterilization of wastes, treatment of food products, and other environmental and consumer applications. At Sandia National Laboratory, the Repetitive High Energy Pulsed Power (RHEPP) program is developing a 7 stage magnetic pulse compressor driving a linear induction voltage adder with an electron beam diode load. The RHEPP machine is being design to deliver 350 kW of average power to the diode in 60 ns FWHM, 2.5 MV, 3 kJ pulses at a repetition rate of 120 Hz. In addition to the electrical design considerations, the repetition rate requires thermal management of the electrical losses. Steady state temperatures must be kept below the material degradation temperatures to maximize reliability and component life. The optimum design is a trade off between thermal management, maximizing overall electrical performance of the system, reliability, and cost effectiveness. Cooling requirements and configurations were developed for each of the subsystems of RHEPP. Finite element models that combine fluid flow and heat transfer were used to screen design concepts. The analysis includes one, two, and three dimensional heat transfer using surface heat transfer coefficients and boundary layer models. Experiments were conducted to verify the models as well as to evaluate cooling channel fabrication materials and techniques in Metglas wound cores. 10 refs.

  8. Thermal management in high average power pulsed compression systems

    SciTech Connect

    Wavrik, R.W.; Reed, K.W.; Harjes, H.C.; Weber, G.J.; Butler, M.; Penn, K.J.; Neau, E.L.

    1992-01-01

    High average power repetitively pulsed compression systems offer a potential source of electron beams which may be applied to sterilization of wastes, treatment of food products, and other environmental and consumer applications. At Sandia National Laboratory, the Repetitive High Energy Pulsed Power (RHEPP) program is developing a 7 stage magnetic pulse compressor driving a linear induction voltage adder with an electron beam diode load. The RHEPP machine is being design to deliver 350 kW of average power to the diode in 60 ns FWHM, 2.5 MV, 3 kJ pulses at a repetition rate of 120 Hz. In addition to the electrical design considerations, the repetition rate requires thermal management of the electrical losses. Steady state temperatures must be kept below the material degradation temperatures to maximize reliability and component life. The optimum design is a trade off between thermal management, maximizing overall electrical performance of the system, reliability, and cost effectiveness. Cooling requirements and configurations were developed for each of the subsystems of RHEPP. Finite element models that combine fluid flow and heat transfer were used to screen design concepts. The analysis includes one, two, and three dimensional heat transfer using surface heat transfer coefficients and boundary layer models. Experiments were conducted to verify the models as well as to evaluate cooling channel fabrication materials and techniques in Metglas wound cores. 10 refs.

  9. Space Station module Power Management And Distribution (PMAD) system

    NASA Technical Reports Server (NTRS)

    Walls, Bryan

    1990-01-01

    This project consists of several tasks which are unified toward experimentally demonstrating the operation of a highly autonomous, user-supportive power management and distribution system for Space Station Freedom (SSF) habitation/laboratory modules. This goal will be extended to a demonstration of autonomous, cooperative power system operation for the whole SSF power system through a joint effort with NASA's Lewis Research Center, using their Autonomous Power System. Short term goals for the space station module power management and distribution include having an operational breadboard reflecting current plans for SSF, improving performance of the system communications, and improving the organization and mutability of the artificial intelligence (AI) systems. In the middle term, intermediate levels of autonomy will be added, user interfaces will be modified, and enhanced modeling capabilities will be integrated in the system. Long term goals involve conversion of all software into Ada, vigorous verification and validation efforts and, finally, seeing an impact of this research on the operation of SSF. Conversion of the system to a DC Star configuration is now in progress, and should be completed by the end of October, 1989. This configuration reflects the latest SSF module architecture. Hardware is now being procured which will improve system communications significantly. The Knowledge-Based Management System (KBMS) is initially developed and the rules from FRAMES have been implemented in the KBMS. Rules in the other two AI systems are also being grouped modularly, making them more tractable, and easier to eventually move into the KBMS. Adding an intermediate level of autonomy will require development of a planning utility, which will also be built using the KBMS. These changes will require having the user interface for the whole system available from one interface. An Enhanced Model will be developed, which will allow exercise of the system through the interface

  10. The design of optimal electric power demand management contracts

    NASA Astrophysics Data System (ADS)

    Fahrioglu, Murat

    1999-11-01

    Our society derives a quantifiable benefit from electric power. In particular, forced outages or blackouts have enormous consequences on society, one of which is loss of economic surplus. Electric utilities try to provide reliable supply of electric power to their customers. Maximum customer benefit derives from minimum cost and sufficient supply availability. Customers willing to share in "availability risk" can derive further benefit by participating in controlled outage programs. Specifically, whenever utilities foresee dangerous loading patterns, there is a need for a rapid reduction in demand either system-wide or at specific locations. The utility needs to get relief in order to solve its problems quickly and efficiently. This relief can come from customers who agree to curtail their loads upon request in exchange for an incentive fee. This thesis shows how utilities can get efficient load relief while maximizing their economic benefit. This work also shows how estimated customer cost functions can be calibrated, using existing utility data, to help in designing efficient demand management contracts. In order to design such contracts, optimal mechanism design is adopted from "Game Theory" and applied to the interaction between a utility and its customers. The idea behind mechanism design is to design an incentive structure that encourages customers to sign up for the right contract and reveal their true value of power. If a utility has demand management contracts with customers at critical locations, most operational problems can be solved efficiently. This thesis illustrates how locational attributes of customers incorporated into demand management contract design can have a significant impact in solving system problems. This kind of demand management contracts can also be used by an Independent System Operator (ISO). During times of congestion a loss of economic surplus occurs. When the market is too slow or cannot help relieve congestion, demand management

  11. SEMINAR PROCEEDINGS: RCRA CORRECTIVE ACTION STABILIZATION TECHNOLOGIES

    EPA Science Inventory

    The seminar publication provides an overview of many technologies that can be used in applying the stabilization concept to RCRA cleanup activities. Technologies discussed include covers, grouting, slurry walls, hydrofracture, horizontal well drilling, a vacuum extraction, and b...

  12. Provocative Questions in Cancer: NCI Seminar

    Cancer.gov

    science writers' seminar to discuss various aspects of one of NCI’s signature efforts -- the Provocative Questions project. Discussion will focus on the scientific research that surrounds some of these questions.

  13. Database management for power system planning: Final report

    SciTech Connect

    Carlsen, K.; Fink, L.H.

    1988-05-01

    This project was undertaken to assess the suitability of representative commercial data base management system (DBMS) for serving as a basis for integrating power system planning analysis software. A data base design was developed for that purpose, and implementation was attempted using the chosen commercial DBMS. Implementation was carried only far enough to demonstrate limitations due to the current state of the art in DBMS practice, which are related in large part to a commercial rather than engineering orientation. The data base design for power system analysis software integration that was developed is described in full. It appears suitable for implementation, given suitable means, and alternative means are discussed. Such means include existing special purpose software for the integration of engineering software, and possibly special purpose data base machines. 7 figs., 13 tabs.

  14. Power Management and Distribution (PMAD) Model Development: Final Report

    NASA Technical Reports Server (NTRS)

    Metcalf, Kenneth J.

    2011-01-01

    Power management and distribution (PMAD) models were developed in the early 1990's to model candidate architectures for various Space Exploration Initiative (SEI) missions. They were used to generate "ballpark" component mass estimates to support conceptual PMAD system design studies. The initial set of models was provided to NASA Lewis Research Center (since renamed Glenn Research Center) in 1992. They were developed to estimate the characteristics of power conditioning components predicted to be available in the 2005 timeframe. Early 90's component and device designs and material technologies were projected forward to the 2005 timeframe, and algorithms reflecting those design and material improvements were incorporated into the models to generate mass, volume, and efficiency estimates for circa 2005 components. The models are about ten years old now and NASA GRC requested a review of them to determine if they should be updated to bring them into agreement with current performance projections or to incorporate unforeseen design or technology advances. This report documents the results of this review and the updated power conditioning models and new transmission line models generated to estimate post 2005 PMAD system masses and sizes. This effort continues the expansion and enhancement of a library of PMAD models developed to allow system designers to assess future power system architectures and distribution techniques quickly and consistently.

  15. Pareto Efficient Policy for Supervisory Power Management Control

    SciTech Connect

    Malikopoulos, Andreas

    2015-01-01

    n this paper we address the problem of online optimization of the supervisory power management control in parallel hybrid electric vehicles (HEVs). We model HEV opera- tion as a controlled Markov chain using the long-run expected average cost per unit time criterion, and we show that the control policy yielding the Pareto optimal solution minimizes the average cost criterion online. The effectiveness of the proposed solution is validated through simulation and compared to the solution derived with dynamic programming using the average cost criterion.

  16. Duke Power experience with RCCA and guide card management

    SciTech Connect

    Boshers, A.

    1995-12-31

    The vibrational wear of rod control cluster assemblies (RCCAs) has been a concern for Westinghouse nuclear plants since the mid 1980s. In 1988, Duke Power Company (DPC) began an effort to understand and manage this phenomenon. While the early efforts dealt primarily with fretting wear, the issues of axial tip cracking and guide card wear were eventually included to develop what is now a comprehensive RCCA/guide tube assembly (GTA) wear program. This paper discusses the development of that program as well as DPC`s experience with fretting wear studies, wear resistant coatings, and axial tip cracks.

  17. Integration of hydroelectric power and apiary management. Final report

    SciTech Connect

    Mitchell, C.

    1983-06-19

    Appropriate Technology Grant 3-80-342 is an attempt to integrate hydroelectric power with apiary management. The biggest challenge to the efficient completion of the project was connecting with the appropriate technology and associated personel to guide the project. Most of the so called ''experts'' in this field are at an early experimental stage in technology and knowledge. The existing system is capable of generating ample electricity six to seven months out of the year. The unit was operating consistantly near the end of winter. At present, it is not running due to lack of sufficient water.

  18. Seminar in Critical Inquiry Twenty-first Century Nuclear Systems

    SciTech Connect

    LeMone, D. V.

    2002-02-25

    Critical Inquiry, has not only been successful in increasing university student retention rate but also in improving student academic performance beyond the initial year of transition into the University. The seminar course herein reviewed is a balanced combination of student personal and academic skill development combined with a solid background in modern nuclear systems. It is a valid premise to assume that entering students as well as stakeholders of the general public demonstrate equal levels of capability. Nuclear systems is designed to give a broad and basic knowledge of nuclear power, medical, industrial, research, and military systems (nuclear systems) in 20-25 hours.

  19. Minutes of the 23rd Eplosives Safety Seminar, volume 2

    NASA Astrophysics Data System (ADS)

    1988-08-01

    Some areas of discussion at this seminar were: Hazards and risks of the disposal of chemical munitions using a cryogenic process; Special equipment for demilitarization of lethal chemical agent filled munitions; explosive containment room (ECR) repair Johnston Atoll chemical agent disposal system; Sympathetic detonation testing; Blast loads, external and internal; Structural reponse testing of walls, doors, and valves; Underground explosion effects, external airblast; Explosives shipping, transportation safety and port licensing; Explosive safety management; Underground explosion effects, model test and soil rock effects; Chemical risk and protection of workers; and Full scale explosives storage test.

  20. United States Savings Bonds Seminar: Seminar Leader's Guide. 3rd Edition.

    ERIC Educational Resources Information Center

    Department of the Treasury, Washington, DC.

    This leader's guide is designed for use in conducting a seminar to train bank employees in correct procedures for issuing and redeeming U.S. Savings Bonds and in answering routine customer inquiries concerning savings bonds. Included in the first section of the guide are an overview of the purpose and content of the seminar, procedures for…

  1. Microgravity fluid management requirements of advanced solar dynamic power systems

    NASA Technical Reports Server (NTRS)

    Migra, Robert P.

    1987-01-01

    The advanced solar dynamic system (ASDS) program is aimed at developing the technology for highly efficient, lightweight space power systems. The approach is to evaluate Stirling, Brayton and liquid metal Rankine power conversion systems (PCS) over the temperature range of 1025 to 1400K, identify the critical technologies and develop these technologies. Microgravity fluid management technology is required in several areas of this program, namely, thermal energy storage (TES), heat pipe applications and liquid metal, two phase flow Rankine systems. Utilization of the heat of fusion of phase change materials offers potential for smaller, lighter TES systems. The candidate TES materials exhibit large volume change with the phase change. The heat pipe is an energy dense heat transfer device. A high temperature application may transfer heat from the solar receiver to the PCS working fluid and/or TES. A low temperature application may transfer waste heat from the PCS to the radiator. The liquid metal Rankine PCS requires management of the boiling/condensing process typical of two phase flow systems.

  2. Design of a power management and distribution system for a thermionic-diode powered spacecraft

    SciTech Connect

    Kimnach, G.L.

    1996-12-31

    The Electrical Systems Development Branch of the Power Technology Division at the NASA Lewis Research Center in Cleveland, Ohio is designing a Power Management and Distribution (PMAD) System for the Air Force`s integrated Solar Upper Stage (ISUS) Engine Ground Test Demonstration (EGD). The ISUS program uses solar-thermal propulsion to perform orbit transfers from Low Earth Orbit (LEO) to Geosynchronous Orbit (GEO) and from LEO to Molnya. The ISUS uses the same energy conversion receiver to perform the LEO to High Earth Orbit (HEO) transfer and to generate on-orbit electric power for the payloads. On-orbit power generation is accomplished via two solar concentrators heating a dual-cavity graphite-core which has Thermionic Diodes (TIDs) encircling each cavity. The graphite core and concentrators together are called the Receiver and Concentrator (RAC). The TID-emitters reach peak temperatures of approximately 2,200 K, and the TID-collectors are run at approximately 1,000 K. Because of the high Specific Impulse (I{sub sp}) of solar thermal propulsion relative to chemical propulsion, and because a common bus is used for communications, GN and C, power, etc., a substantial increase in payload mass is possible. This potentially allows for a step-down in the required launch vehicle size or class for similar payload mass using conventional chemical propulsion and a separate spacecraft bus. The ISUS power system is to provide 1,000 W{sub e} at 28 {+-} 6V{sub dc} to the payload/spacecraft from a maximum TID generation capability of 1,070 W{sub e} at 2,200 K, producing power with this quality, protecting the spacecraft from electrical faults and accommodating operational constraints of the TIDs is the responsibility of the PMAD system. The design strategy and system options examined along with the proposed designs for the Flight and EGD configurations are discussed.

  3. Design of a power management and distribution system for a thermionic-diode powered spacecraft

    NASA Technical Reports Server (NTRS)

    Kimnach, Greg L.

    1996-01-01

    The Electrical Systems Development Branch of the Power Technology Division at the NASA Lewis Research Center in Cleveland, Ohio is designing a Power Management and Distribution (PMAD) System for the Air Force's Integrated Solar Upper Stage (ISUS) Engine Ground Test Demonstration (EGD). The ISUS program uses solar-thermal propulsion to perform orbit transfers from Low Earth Orbit (LEO) to Geosynchronous Orbit (GEO) and from LEO to Molnya. The ISUS uses the same energy conversion receiver to perform the LEO to High Earth Orbit (HEO) transfer and to generate on-orbit electric power for the payloads. On-orbit power generation is accomplished via two solar concentrators heating a dual-cavity graphite-core which has Thermionic Diodes (TMD's) encircling each cavity. The graphite core and concentrators together are called the Receiver and Concentrator (RAC). The TDM-emitters reach peak temperatures of approximately 2200K, and the TID-collectors are run at approximately 1000K. Because of the high Specific Impulse (I(sup sp)) of solar thermal propulsion relative to chemical propulsion, and because a common bus is used for communications, GN&C, power, etc., a substantial increase in payload weight is possible. This potentially allows for a stepdown in the required launch vehicle size or class for similar payload weight using conventional chemical propulsion and a separate spacecraft bus. The ISUS power system is to provide 1000W(sub e) at 28+/-6V(sub dc) to the payload/spacecraft from a maximum TID generation capability of 1070W(sub e) at 2200K. Producing power with this quality, protecting the spacecraft from electrical faults and accommodating operational constraints of the TID's are the responsibilities of the PMAD system. The design strategy and system options examined along with the proposed designs for the Flight and EGD configurations are discussed herein.

  4. A multiscale forecasting method for power plant fleet management

    NASA Astrophysics Data System (ADS)

    Chen, Hongmei

    In recent years the electric power industry has been challenged by a high level of uncertainty and volatility brought on by deregulation and globalization. A power producer must minimize the life cycle cost while meeting stringent safety and regulatory requirements and fulfilling customer demand for high reliability. Therefore, to achieve true system excellence, a more sophisticated system-level decision-making process with a more accurate forecasting support system to manage diverse and often widely dispersed generation units as a single, easily scaled and deployed fleet system in order to fully utilize the critical assets of a power producer has been created as a response. The process takes into account the time horizon for each of the major decision actions taken in a power plant and develops methods for information sharing between them. These decisions are highly interrelated and no optimal operation can be achieved without sharing information in the overall process. The process includes a forecasting system to provide information for planning for uncertainty. A new forecasting method is proposed, which utilizes a synergy of several modeling techniques properly combined at different time-scales of the forecasting objects. It can not only take advantages of the abundant historical data but also take into account the impact of pertinent driving forces from the external business environment to achieve more accurate forecasting results. Then block bootstrap is utilized to measure the bias in the estimate of the expected life cycle cost which will actually be needed to drive the business for a power plant in the long run. Finally, scenario analysis is used to provide a composite picture of future developments for decision making or strategic planning. The decision-making process is applied to a typical power producer chosen to represent challenging customer demand during high-demand periods. The process enhances system excellence by providing more accurate market

  5. Reducing the cognitive workload: Trouble managing power systems

    NASA Technical Reports Server (NTRS)

    Manner, David B.; Liberman, Eugene M.; Dolce, James L.; Mellor, Pamela A.

    1993-01-01

    The complexity of space-based systems makes monitoring them and diagnosing their faults taxing for human beings. Mission control operators are well-trained experts but they can not afford to have their attention diverted by extraneous information. During normal operating conditions monitoring the status of the components of a complex system alone is a big task. When a problem arises, immediate attention and quick resolution is mandatory. To aid humans in these endeavors we have developed an automated advisory system. Our advisory expert system, Trouble, incorporates the knowledge of the power system designers for Space Station Freedom. Trouble is designed to be a ground-based advisor for the mission controllers in the Control Center Complex at Johnson Space Center (JSC). It has been developed at NASA Lewis Research Center (LeRC) and tested in conjunction with prototype flight hardware contained in the Power Management and Distribution testbed and the Engineering Support Center, ESC, at LeRC. Our work will culminate with the adoption of these techniques by the mission controllers at JSC. This paper elucidates how we have captured power system failure knowledge, how we have built and tested our expert system, and what we believe are its potential uses.

  6. Power Management and SRAM for Energy-Autonomous and Low-Power Systems

    NASA Astrophysics Data System (ADS)

    Chen, Gregory K.

    We demonstrate the two first-known, complete, self-powered millimeter-scale computer systems. These microsystems achieve zero-net-energy operation using solar energy harvesting and ultra-low-power circuits. A medical implant for monitoring intraocular pressure (IOP) is presented as part of a treatment for glaucoma. The 1.5mm3 IOP monitor is easily implantable because of its small size and measures IOP with 0.5mmHg accuracy. It wirelessly transmits data to an external wand while consuming 4.70nJ/bit. This provides rapid feedback about treatment efficacies to decrease physician response time and potentially prevent unnecessary vision loss. A nearly-perpetual temperature sensor is presented that processes data using a 2.1muW near-threshold ARMRTM Cortex-M3(TM) muP that provides a widely-used and trusted programming platform. Energy harvesting and power management techniques for these two microsystems enable energy-autonomous operation. The IOP monitor harvests 80nW of solar power while consuming only 5.3nW, extending lifetime indefinitely. This allows the device to provide medical information for extended periods of time, giving doctors time to converge upon the best glaucoma treatment. The temperature sensor uses on-demand power delivery to improve low-load dc-dc voltage conversion efficiency by 4.75x. It also performs linear regulation to deliver power with low noise, improved load regulation, and tight line regulation. Low-power high-throughput SRAM techniques help millimeter-scale microsystems meet stringent power budgets. VDD scaling in memory decreases energy per access, but also decreases stability margins. These margins can be improved using sizing, VTH selection, and assist circuits, as well as new bitcell designs. Adaptive Crosshairs modulation of SRAM power supplies fixes 70% of parametric failures. Half-differential SRAM design improves stability, reducing VMIN by 72mV. The circuit techniques for energy autonomy presented in this dissertation enable

  7. The Rigor and Exorbitance of Reading: Teaching Critical Thinking in the Freshman Honors Seminar.

    ERIC Educational Resources Information Center

    Brown, Byron

    Traditional views of critical thinking instruction focus on teaching students to develop skeptical responses to the texts they read. Genuinely powerful and generative forms of critical thinking, however, require students to read creatively as well. To balance the rigor of analysis and exorbitance of creativity, a freshman honors seminar was…

  8. Creating the Sustainable City: Building a Seminar (and Curriculum) through Interdisciplinary Learning

    ERIC Educational Resources Information Center

    Bryson, Michael A.; Zimring, Carl A.

    2010-01-01

    Using the wealth of sites available in the Chicago metropolitan area, online learning technologies, and classroom interactions, Roosevelt University's seminar "The Sustainable City" takes a multidisciplinary approach to urban ecology, waste management, green design, climate change, urban planning, parklands, water systems, environmental justice,…

  9. Follow-Up of Online Instruction: Effectiveness of Peer Coaching Seminar Course. PRISM Technical Report.

    ERIC Educational Resources Information Center

    Hornberger, Breann

    This paper presents an evaluation of the Peer Coaching Seminar Course offered through the Peer Coaching Rural Inservice Model (PRISM) project at the North Dakota Center for Persons with Disabilities. This online course was designed to help rural teachers learn both peer coaching and classroom management skills. Twenty first- or second-year…

  10. Education and Rural Development Planning. Report of a Regional Seminar (Bangkok, December 8-16, 1980).

    ERIC Educational Resources Information Center

    United Nations Educational, Scientific, and Cultural Organization, Bangkok (Thailand). Regional Office for Education in Asia and the Pacific.

    The report of a regional seminar on rural development planning specifies as its objectives: to study the problems of rural development planning, and to elucidate training requirements for managers of rural development projects, with particular reference to the links between education and productive work and employment. The first chapter gives…

  11. Information for Industry; Proceedings of a One Day Seminar, (Univ. of Newcastle, 6th December 1971).

    ERIC Educational Resources Information Center

    Newcastle Public Library, New South Wales (Australia).

    The objective of this seminar was to increase the awareness of the importance of information to industry and the availability of informational resources in Newcastle. It is directed toward management, research and technical executives. The four papers presented for discussion are: (1) "The importance of information to industry," (2) "The mechanics…

  12. Air Force space power and thermal management technology - Requirements for the early 21st century

    NASA Astrophysics Data System (ADS)

    Herrera, Ernest D.; Kuck, Inara

    Typical projections for military space power and thermal management technologies have posited requirements for high powered and highly survivable systems. Recent changes in defense needs, however, will require spacecraft that are smaller, lower powered, less survivable, and highly proliferated. Technologies will be developed to provide low cost, ultra-light, high power density, 'smart' conventional power systems. Compact nuclear power systems will also be developed to meet higher power needs.

  13. Application of Hybrid Optimization-Expert System for Optimal Power Management on Board Space Power Station

    NASA Technical Reports Server (NTRS)

    Momoh, James; Chattopadhyay, Deb; Basheer, Omar Ali AL

    1996-01-01

    The space power system has two sources of energy: photo-voltaic blankets and batteries. The optimal power management problem on-board has two broad operations: off-line power scheduling to determine the load allocation schedule of the next several hours based on the forecast of load and solar power availability. The nature of this study puts less emphasis on speed requirement for computation and more importance on the optimality of the solution. The second category problem, on-line power rescheduling, is needed in the event of occurrence of a contingency to optimally reschedule the loads to minimize the 'unused' or 'wasted' energy while keeping the priority on certain type of load and minimum disturbance of the original optimal schedule determined in the first-stage off-line study. The computational performance of the on-line 'rescheduler' is an important criterion and plays a critical role in the selection of the appropriate tool. The Howard University Center for Energy Systems and Control has developed a hybrid optimization-expert systems based power management program. The pre-scheduler has been developed using a non-linear multi-objective optimization technique called the Outer Approximation method and implemented using the General Algebraic Modeling System (GAMS). The optimization model has the capability of dealing with multiple conflicting objectives viz. maximizing energy utilization, minimizing the variation of load over a day, etc. and incorporates several complex interaction between the loads in a space system. The rescheduling is performed using an expert system developed in PROLOG which utilizes a rule-base for reallocation of the loads in an emergency condition viz. shortage of power due to solar array failure, increase of base load, addition of new activity, repetition of old activity etc. Both the modules handle decision making on battery charging and discharging and allocation of loads over a time-horizon of a day divided into intervals of 10

  14. Seminar on young child nutrition: improving nutrition and health status of young children in indonesia.

    PubMed

    Isabelle, Mia; Chan, Pauline

    2011-01-01

    The Seminar on Young Child Nutrition: Improving Nutrition and Health Status of Young Children in Indonesia held in Jakarta on November 2009 reviewed the current nutritional and health status of young children in Indonesia and identified key nutrient deficiencies affecting their optimal growth. The continuation of child growth from fetal stage is of paramount importance; and maternal and child health should be a central consideration in policy and strategy development. Clinical management of nutrient deficiency and malnutrition, as well as strategies and education to improve feeding practices of young Indonesian children were discussed in the seminar. Relevant experiences, approaches and strategies from France, New Zealand and Malaysia were also shared and followed with discussion on how regulatory systems can support the development of health policy for young children. This report highlights important information presented at the seminar. PMID:21393122

  15. Freshman Seminars: Interdisciplinary Engagements in Astronomy

    NASA Astrophysics Data System (ADS)

    Hemenway, M. K.

    2006-08-01

    The Freshman Seminar program at the University of Texas is designed to allow groups of fifteen students an engaging introduction to the University. The seminars introduce students to the resources of the university and allow them to identify interesting subjects for further research or future careers. An emphasis on oral and written communication by the students provides these first-year students a transition to college-level writing and thinking. Seminar activities include field trips to an art museum, a research library, and the Humanities Research Center rare book collection. This paper will report on two seminars, each fifteen weeks in length. In "The Galileo Scandal" students examine Galileo's struggle with the church (including a mock trial). They perform activities that connect his use of the telescope and observations to astronomical concepts. In "Astronomy and the Humanities" students analyze various forms of human expression that have astronomical connections (art, drama, literature, music, poetry, and science fiction); they perform hands-on activities to reinforce the related astronomy concepts. Evaluation of the seminars indicates student engagement and improvement in communication skills. Many of the activities could be used independently to engage students enrolled in standard introductory astronomy classes.

  16. Managing autonomy levels in the SSM/PMAD testbed. [Space Station Power Management and Distribution

    NASA Technical Reports Server (NTRS)

    Ashworth, Barry R.

    1990-01-01

    It is pointed out that when autonomous operations are mixed with those of a manual nature, concepts concerning the boundary of operations and responsibility become clouded. The space station module power management and distribution (SSM/PMAD) automation testbed has the need for such mixed-mode capabilities. The concept of managing the SSM/PMAD testbed in the presence of changing levels of autonomy is examined. A knowledge-based approach to implementing autonomy management in the distributed SSM/PMAD utilizing a centralized planning system is presented. Its knowledge relations and system-wide interactions are discussed, along with the operational nature of the currently functioning SSM/PMAD knowledge-based systems.

  17. Temperature and Humidity Sensor Powered by an Individual Microbial Fuel Cell in a Power Management System.

    PubMed

    Zheng, Qi; Xiong, Lei; Mo, Bing; Lu, Weihong; Kim, Suki; Wang, Zhenyu

    2015-01-01

    Microbial fuel cells (MFCs) are of increasing interest as bioelectrochemical systems for decomposing organic materials and converting chemical energy into electricity. The main challenge for this technology is that the low power and voltage of the devices restricts the use of MFCs in practical applications. In this paper, a power management system (PMS) is developed to store the energy and export an increased voltage. The designed PMS successfully increases the low voltage generated by an individual MFC to a high potential of 5 V, capable of driving a wireless temperature and humidity sensor based on nRF24L01 data transmission modules. With the PMS, MFCs can intermittently power the sensor for data transmission to a remote receiver. It is concluded that even an individual MFC can supply the energy required to power the sensor and telemetry system with the designed PMS. The presented PMS can be widely used for unmanned environmental monitoring such as wild rivers, lakes, and adjacent water areas, and offers promise for further advances in MFC technology. PMID:26378546

  18. Temperature and Humidity Sensor Powered by an Individual Microbial Fuel Cell in a Power Management System

    PubMed Central

    Zheng, Qi; Xiong, Lei; Mo, Bing; Lu, Weihong; Kim, Suki; Wang, Zhenyu

    2015-01-01

    Microbial fuel cells (MFCs) are of increasing interest as bioelectrochemical systems for decomposing organic materials and converting chemical energy into electricity. The main challenge for this technology is that the low power and voltage of the devices restricts the use of MFCs in practical applications. In this paper, a power management system (PMS) is developed to store the energy and export an increased voltage. The designed PMS successfully increases the low voltage generated by an individual MFC to a high potential of 5 V, capable of driving a wireless temperature and humidity sensor based on nRF24L01 data transmission modules. With the PMS, MFCs can intermittently power the sensor for data transmission to a remote receiver. It is concluded that even an individual MFC can supply the energy required to power the sensor and telemetry system with the designed PMS. The presented PMS can be widely used for unmanned environmental monitoring such as wild rivers, lakes, and adjacent water areas, and offers promise for further advances in MFC technology. PMID:26378546

  19. SSTAC/ARTS review of the draft Integrated Technology Plan (ITP). Volume 3: Space power and thermal management

    NASA Technical Reports Server (NTRS)

    1991-01-01

    Viewgraphs of briefings from the SSTAC/ARTS review of the draft integrated technology plan on thermal power and thermal management are presented. Topics covered include: space energy conversion research and technology; space photovoltaic energy conversion; chemical energy conversion and storage; thermal energy conversion; power management; thermal management; space nuclear power; high capacity power; surface power and thermal management; space platforms power and thermal management; and project SELENE.

  20. SSTAC/ARTS review of the draft Integrated Technology Plan (ITP). Volume 3: Space power and thermal management

    SciTech Connect

    Not Available

    1991-06-01

    Viewgraphs of briefings from the SSTAC/ARTS review of the draft integrated technology plan on thermal power and thermal management are presented. Topics covered include: space energy conversion research and technology; space photovoltaic energy conversion; chemical energy conversion and storage; thermal energy conversion; power management; thermal management; space nuclear power; high capacity power; surface power and thermal management; space platforms power and thermal management; and project SELENE.

  1. Management of aging of nuclear power plant containment structures

    SciTech Connect

    Naus, D.; Oland, C.B.; Ellingwood, B.; Norris, W.E.; Graves, H.L. III

    1998-06-01

    Research addressing aging management of nuclear power plant concrete and steel containment structures is summarized. Accomplishments related to concrete containment structures include formation of a materials` property database; an aging assessment methodology to identify critical structures and degradation factors; guidelines and evaluation criteria for use in condition assessments; and a time-dependent reliability-based methodology for condition assessments and estimations of future performance. Under the steel containments and liners activity, a degradation assessment methodology has been developed, mathematical models that describe time-dependent changes in the containment due to aggressive environmental factors have been identified, and statistical data supporting the use of these models in time-dependent reliability analysis have been summarized.

  2. Lunar base thermal management/power system analysis and design

    NASA Technical Reports Server (NTRS)

    Mcghee, Jerry R.

    1992-01-01

    A compilation of several lunar surface thermal management and power system studies completed under contract and IR&D is presented. The work includes analysis and preliminary design of all major components of an integrated thermal management system, including loads determination, active internal acquisition and transport equipment, external transport systems (active and passive), passive insulation, solar shielding, and a range of lunar surface radiator concepts. Several computer codes were utilized in support of this study, including RADSIM to calculate radiation exchange factors and view factors, RADIATOR (developed in-house) for heat rejection system sizing and performance analysis over a lunar day, SURPWER for power system sizing, and CRYSTORE for cryogenic system performance predictions. Although much of the work was performed in support of lunar rover studies, any or all of the results can be applied to a range of surface applications. Output data include thermal loads summaries, subsystem performance data, mass, and volume estimates (where applicable), integrated and worst-case lunar day radiator size/mass and effective sink temperatures for several concepts (shielded and unshielded), and external transport system performance estimates for both single and two-phase (heat pumped) transport loops. Several advanced radiator concepts are presented, along with brief assessments of possible system benefits and potential drawbacks. System point designs are presented for several cases, executed in support of the contract and IR&D studies, although the parametric nature of the analysis is stressed to illustrate applicability of the analysis procedure to a wide variety of lunar surface systems. The reference configuration(s) derived from the various studies will be presented along with supporting criteria. A preliminary design will also be presented for the reference basing scenario, including qualitative data regarding TPS concerns and issues.

  3. Proactive Management of Materials Degradation for Nuclear Power Plant Systems

    SciTech Connect

    Bond, Leonard J.; Taylor, Theodore T.; Doctor, Steven R.; Hull, Amy; Malik, Shah

    2008-09-01

    There are approximately 440 operating reactors in the global nuclear power plant (NPP) fleet, and these have an average age greater than 20 years. These NPPs had design lives of 30 or 40 years. The United States is currently implementing license extensions of 20 years on many plants and consideration is now being given to the concept of “life-beyond-60,” a further period of license extension from 60 to 80 years, and potentially longer. In almost all countries with NPPs, authorities are looking at some form of license renewal program. There is a growing urgency as a number of plants face either approvals for license extension or shut down, which will require deployment of new power plants. In support of NPP license extension over the past decade, various national and international programs have been initiated. This paper reports part of the work performed in support of the U.S. Nuclear Regulatory Commission’s (NRC’s) Proactive Management of Materials Degradation (PMMD) program. The paper concisely explains the basic principles of PMMD, its relationship to advanced diagnostics and prognostics and provides an assessment of some the technical gaps in PMMD and prognostics that need to be addressed.

  4. Seismic risk management solution for nuclear power plants

    DOE PAGESBeta

    Coleman, Justin; Sabharwall, Piyush

    2014-12-01

    Nuclear power plants should safely operate during normal operations and maintain core-cooling capabilities during off-normal events, including external hazards (such as flooding and earthquakes). Management of external hazards to expectable levels of risk is critical to maintaining nuclear facility and nuclear power plant safety. Seismic risk is determined by convolving the seismic hazard with seismic fragilities (capacity of systems, structures, and components). Seismic isolation (SI) is one protective measure showing promise to minimize seismic risk. Current SI designs (used in commercial industry) reduce horizontal earthquake loads and protect critical infrastructure from the potentially destructive effects of large earthquakes. The benefitmore » of SI application in the nuclear industry is being recognized and SI systems have been proposed in American Society of Civil Engineer Standard 4, ASCE-4, to be released in the winter of 2014, for light water reactors facilities using commercially available technology. The intent of ASCE-4 is to provide criteria for seismic analysis of safety related nuclear structures such that the responses to design basis seismic events, computed in accordance with this standard, will have a small likelihood of being exceeded. The U.S. nuclear industry has not implemented SI to date; a seismic isolation gap analysis meeting was convened on August 19, 2014, to determine progress on implementing SI in the U.S. nuclear industry. The meeting focused on the systems and components that could benefit from SI. As a result, this article highlights the gaps identified at this meeting.« less

  5. Seismic risk management solution for nuclear power plants

    SciTech Connect

    Coleman, Justin; Sabharwall, Piyush

    2014-12-01

    Nuclear power plants should safely operate during normal operations and maintain core-cooling capabilities during off-normal events, including external hazards (such as flooding and earthquakes). Management of external hazards to expectable levels of risk is critical to maintaining nuclear facility and nuclear power plant safety. Seismic risk is determined by convolving the seismic hazard with seismic fragilities (capacity of systems, structures, and components). Seismic isolation (SI) is one protective measure showing promise to minimize seismic risk. Current SI designs (used in commercial industry) reduce horizontal earthquake loads and protect critical infrastructure from the potentially destructive effects of large earthquakes. The benefit of SI application in the nuclear industry is being recognized and SI systems have been proposed in American Society of Civil Engineer Standard 4, ASCE-4, to be released in the winter of 2014, for light water reactors facilities using commercially available technology. The intent of ASCE-4 is to provide criteria for seismic analysis of safety related nuclear structures such that the responses to design basis seismic events, computed in accordance with this standard, will have a small likelihood of being exceeded. The U.S. nuclear industry has not implemented SI to date; a seismic isolation gap analysis meeting was convened on August 19, 2014, to determine progress on implementing SI in the U.S. nuclear industry. The meeting focused on the systems and components that could benefit from SI. As a result, this article highlights the gaps identified at this meeting.

  6. Power management of remote microgrids considering battery lifetime

    NASA Astrophysics Data System (ADS)

    Chalise, Santosh

    Currently, 20% (1.3 billion) of the world's population still lacks access to electricity and many live in remote areas where connection to the grid is not economical or practical. Remote microgrids could be the solution to the problem because they are designed to provide power for small communities within clearly defined electrical boundaries. Reducing the cost of electricity for remote microgrids can help to increase access to electricity for populations in remote areas and developing countries. The integration of renewable energy and batteries in diesel based microgrids has shown to be effective in reducing fuel consumption. However, the operational cost remains high due to the low lifetime of batteries, which are heavily used to improve the system's efficiency. In microgrid operation, a battery can act as a source to augment the generator or a load to ensure full load operation. In addition, a battery increases the utilization of PV by storing extra energy. However, the battery has a limited energy throughput. Therefore, it is required to provide balance between fuel consumption and battery lifetime throughput in order to lower the cost of operation. This work presents a two-layer power management system for remote microgrids. First layer is day ahead scheduling, where power set points of dispatchable resources were calculated. Second layer is real time dispatch, where schedule set points from the first layer are accepted and resources are dispatched accordingly. A novel scheduling algorithm is proposed for a dispatch layer, which considers the battery lifetime in optimization and is expected to reduce the operational cost of the microgrid. This method is based on a goal programming approach which has the fuel and the battery wear cost as two objectives to achieve. The effectiveness of this method was evaluated through a simulation study of a PV-diesel hybrid microgrid using deterministic and stochastic approach of optimization.

  7. Improving Cognitive Complexity via Seminar Methodology in Higher Education

    ERIC Educational Resources Information Center

    Lopez, Pau; Gallifa, Josep

    2008-01-01

    This paper presents the main functions that university plays in society and describes the seminar methodology created at Ramon Llull University. Specifically the article focuses on and explains how seminars help to promote complex knowledge in students. An empirical study with students participating in seminars is designed to assess the…

  8. Whither Thou Goest: The Intrigue of an International Study Seminar.

    ERIC Educational Resources Information Center

    Patten, Ronald J.; Peters, Robert

    This paper describes one business school's response to the challenges of globalization. After faculty members taught seminars in other countries, an interest was expressed in conducting international study seminars for the school's business students. One-week seminars were arranged, which allowed part-time, employed MBA students to enroll. The…

  9. Should We Bother Improving Students' Attendance at Seminars?

    ERIC Educational Resources Information Center

    Gbadamosi, Gbolahan

    2015-01-01

    This study uses action research intervention to improve students' attendance at seminars. Specifically, the study asks the question: will students' attendance improve if they drive their own learning by running their own seminars? Records of lecture and seminar attendance at a module and comparative ones were used. Focus group interviews…

  10. Reviving Graduate Seminar Series through Non-Technical Presentations

    ERIC Educational Resources Information Center

    Madihally, Sundararajan V.

    2011-01-01

    Most chemical engineering programs that offer M.S. and Ph.D. degrees have a common seminar series for all the graduate students. Many would agree that seminars lack student interest, leading to ineffectiveness. We questioned the possibility of adding value to the seminar series by incorporating non-technical topics that may be more important to…

  11. POS 591: International Relations Seminar "The Modern World-System."

    ERIC Educational Resources Information Center

    McGowan, Patrick J.

    The syllabus outlines a college level international relations seminar with a neo-Marxist theoretical orientation. The objective of the seminar is to present an historical and comparative approach to a study of the evolution of the international political economy. Following an introduction explaining seminar objectives, grading, and course…

  12. Fulbright-Hays Seminars Abroad Program and Special Bilateral Projects

    ERIC Educational Resources Information Center

    Office of Postsecondary Education, US Department of Education, 2012

    2012-01-01

    The Fulbright-Hays Seminars Abroad Program and Special Bilateral Projects provides short-term study and travel seminars abroad for U.S. educators in the social sciences and humanities for the purpose of improving their understanding and knowledge of the people and culture of other countries. There are approximately 10 seminars with 16 participants…

  13. Thermal Management of Power Electronics and Electric Motors for Electric-Drive Vehicles (Presentation)

    SciTech Connect

    Narumanchi, S.

    2014-09-01

    This presentation is an overview of the power electronics and electric motor thermal management and reliability activities at NREL. The focus is on activities funded by the Department of Energy Vehicle Technologies Office Advanced Power Electronics and Electric Motors Program.

  14. Test Program of the "Combined Data and Power Management Infrastructure"

    NASA Astrophysics Data System (ADS)

    Eickhoff, Jens; Fritz, Michael; Witt, Rouven; Bucher, Nico; Roser, Hans-Peter

    2013-08-01

    As already published in previous DASIA papers, the University of Stuttgart, Germany, is developing an advanced 3-axis stabilized small satellite applying industry standards for command/control techniques and Onboard Software design. This satellite furthermore features an innovative hybrid architecture of Onboard Computer and Power Control and Distribution Unit. One of the main challenges was the development of an ultra-compact and performing Onboard Computer (OBC), which was intended to support an RTEMS operating system, a PUS standard based Onboard Software (OBSW) and CCSDS standard based ground/space communication. The developed architecture (see [1, 2, 3]) is called a “Combined Onboard Data and Power Management Infrastructure” - CDPI. It features: The OBC processor boards based on a LEON3FT architecture - from Aeroflex Inc., USA The I/O Boards for all OBC digital interfaces to S/C equipment (digital RIU) - from 4Links Ltd. UK CCSDS TC/TM decoder/encoder boards - with same HW design as I/O boards - just with limited number of interfaces. HW from 4Links Ltd, UK, driver SW and IP-Core from Aeroflex Gaisler, SE Analog RIU functions via enhanced PCDU from Vectronic Aerospace, D OBC reconfiguration unit functions via Common Controller - here in PCDU [4] The CDPI overall assembly is meanwhile complete and a exhaustive description can be found in [5]. The EM test campaign including the HW/SW compatibility testing is finalized. This comprises all OBC EM units, OBC EM assembly and the EM PCDU. The unit test program for the FM Processor-Boards and Power-Boards of the OBC are completed and the unit tests of FM I/O-Boards and CCSDS-Boards have been completed by 4Links at the assembly house. The subsystem tests of the assembled OBC also are completed and the overall System tests of the CDPI with system reconfiguration in diverse possible FDIR cases also reach the last steps. Still ongoing is the subsequent integration of the CDPI with the satellite's avionics components

  15. Teachers’ perceptions of aspects affecting seminar learning: a qualitative study

    PubMed Central

    2013-01-01

    Background Many medical schools have embraced small group learning methods in their undergraduate curricula. Given increasing financial constraints on universities, active learning groups like seminars (with 25 students a group) are gaining popularity. To enhance the understanding of seminar learning and to determine how seminar learning can be optimised it is important to investigate stakeholders’ views. In this study, we qualitatively explored the views of teachers on aspects affecting seminar learning. Methods Twenty-four teachers with experience in facilitating seminars in a three-year bachelor curriculum participated in semi-structured focus group interviews. Three focus groups met twice with an interval of two weeks led by one moderator. Sessions were audio taped, transcribed verbatim and independently coded by two researchers using thematic analysis. An iterative process of data reduction resulted in emerging aspects that influence seminar learning. Results Teachers identified seven key aspects affecting seminar learning: the seminar teacher, students, preparation, group functioning, seminar goals and content, course coherence and schedule and facilities. Important components of these aspects were: the teachers’ role in developing seminars (‘ownership’), the amount and quality of preparation materials, a non-threatening learning climate, continuity of group composition, suitability of subjects for seminar teaching, the number and quality of seminar questions, and alignment of different course activities. Conclusions The results of this study contribute to the unravelling of the ‘the black box’ of seminar learning. Suggestions for ways to optimise active learning in seminars are made regarding curriculum development, seminar content, quality assurance and faculty development. PMID:23399475

  16. Mathematics/Science. Educational Policy Seminar Papers.

    ERIC Educational Resources Information Center

    City Univ. of New York, NY.

    Seven papers presenting recent findings on mathematics and science education are included in this report. Most of the papers deal with improving the mathematics/science instruction for minorities and women, and were presented at a series of seminars for the improvement of teaching math and science. Paper titles (and authors) are: (1) "Neurological…

  17. Report on Fulbright Summer Seminar on Indonesia.

    ERIC Educational Resources Information Center

    Christenson, Charles Elroy

    This resource packet was compiled by a participant in the Fulbright Summer Seminar on Indonesia. The materials provide information for teaching about the diaspora of Hinduism and Islamic beliefs throughout the southeast Asia archipelagoes and their influence on art and culture. The handouts supplement information on Indonesia as part of an Asian…

  18. Latin American USOMs Seminar on Agrarian Reform.

    ERIC Educational Resources Information Center

    International Cooperation Administration (Dept. of State), Washington, DC.

    This report of seminar proceedings discusses land reform policies and programs and their place in the economic development of Latin America. It analyzes experiences and current situations in Latin America, the United States, and elsewhere which shed light on the problems and possibilities of agrarian reform. An appraisal of existing physical,…

  19. Senior Seminars: Focus on the Future

    ERIC Educational Resources Information Center

    Dreis, Janice; Rehage, Larry

    2010-01-01

    Senior year is the perfect time to offer students challenges that will help prepare them for life after school. The term "senior seminar" has been commonly used to describe a course that is specifically designed to help 12th graders develop knowledge, skills, and habits of mind that will prepare them for their college or work experiences. Senior…

  20. A Career Development General Education Seminar.

    ERIC Educational Resources Information Center

    Stoddard, Kathleen B.

    This paper presents an example of the implementation of the elements of developmental career counseling within an academic setting. A ten-week seminar, attended by 49 university student subjects, was evaluated, before and after, with the Vocational Development Inventory (VDI), the Career Activities Survey (CAS, an information seeking checklist),…

  1. 2012 National Policy Seminar Wrap-Up

    ERIC Educational Resources Information Center

    Blandford, Ayoka

    2012-01-01

    CTE works! That was the recurring theme that attendees heard at the 2012 National Policy Seminar (NPS) hosted by ACTE. For those new to the event and lobbying, a pre-conference workshop, "Learning the Ropes of Washington CTE Advocacy," laid out the basics of Hill advocacy. Veteran CTE advocates were offered a basics-plus session, "Tailoring Your…

  2. The Slavonic Studies Seminar in Bulgaria.

    ERIC Educational Resources Information Center

    Winokur, Marshall

    The Slavonic Studies Seminar is held for one month each summer at Kliment Okhridski University in Sofia, Bulgaria. The program consists of three weeks of Bulgarian language instruction and a one-week trip around Bulgaria through interesting medieval towns, monasteries, and coastal resorts. The participants are primarily college teachers,…

  3. Proceedings: EPRI Second Phased Array Inspection Seminar

    SciTech Connect

    2001-11-01

    The Second EPRI Phased Array Inspection Seminar focused on industrial applications of phased array technology that have been achieved to date or are planned for the near future. Presentations were made by developers of inspection techniques, inspection services vendors, and utility personnel who have performed inspections using arrays.

  4. Letter Writing Seminar for Word Processing Principals

    ERIC Educational Resources Information Center

    Wunsch, Alan P.

    1978-01-01

    A business letter writing seminar was developed by the Center for Executive Development at Arizona State University at the request of the American Express Company's credit card division in Phoenix. Sessions were held on company premises and included basic correspondence and writing techniques for company production form letters, pattern…

  5. Psychological Education. Middle School Seminar Series.

    ERIC Educational Resources Information Center

    Georgia State Dept. of Education, Atlanta. Office of Planning and Development.

    This leader's guide, the first of three in a series for middle school students, presents a program designed to develop interpersonal skills and self-understanding. The guide is organized into three major seminars: communication, understanding behavior, and changing behavior; these are sequential and hierarchical in nature. Specific instructions…

  6. Establishing Educational Consortia Through Faculty Seminars.

    ERIC Educational Resources Information Center

    Bragg, Stephen M.; And Others

    In response to growing needs of older citizens, the University of Pennsylvania and the Office of Aging of the Pennsylvania Department of Public Welfare developed a three-year gerontological program. A series of faculty seminars was planned as part of the first-year program, after an initial survey of all Pennsylvania institutions of higher…

  7. Seminars on Occupational Clusters. A Report.

    ERIC Educational Resources Information Center

    Bureau of Occupational and Adult Education (DHEW/OE), Washington, DC. Div. of Research and Demonstration.

    The document on occupational clusters was developed from papers presented in staff seminars in the Bureau of Occupational and Adult Education and contains eight papers: Introduction to the World of Clustering, Sidney C. High; Cluster Curriculum Development, Elizabeth J. Simpson; the Cluster Concept, Development of Curricular Materials for the…

  8. University Without Walls: Seminar in Process Education.

    ERIC Educational Resources Information Center

    Eldred, Marilou

    Students at the University Without Walls (UWW) of the University of Minnesota design their own program by writing a Long Term Degree Plan to describe how they plan to demonstrate their competence in each of UWW's seven graduation criteria. Because students have experienced difficulty in writing the plan, a seminar in process education was…

  9. Seminar "Quantum Gravity' (Moscow, May 1987). Recollections

    NASA Astrophysics Data System (ADS)

    Gaina, Alex

    2008-08-01

    A short story of the Seminar "Quantum Gravity' (Moscow, May 1987) is given with recollections about few meetings with professors: M.A. Markov, John Archibald Wheeler, Gert T'Hooft, Ya. B.Zeldovich, Stephen Hawking, A.D. Sakharov, Garry Gibbons, Cecille and Bryce DeWitt, Ph. Candelas, L.P.Grishchuk, A.D. Linde and other.

  10. Thermal management of advanced fuel cell power systems

    NASA Technical Reports Server (NTRS)

    Vanderborgh, N. E.; Hedstrom, J.; Huff, J.

    1990-01-01

    It is shown that fuel cell devices are particularly attractive for the high-efficiency, high-reliability space hardware necessary to support upcoming space missions. These low-temperature hydrogen-oxygen systems necessarily operate with two-phase water. In either PEMFCs (proton exchange membrane fuel cells) or AFCs (alkaline fuel cells), engineering design must be critically focused on both stack temperature control and on the relative humidity control necessary to sustain appropriate conductivity within the ionic conductor. Water must also be removed promptly from the hardware. Present designs for AFC space hardware accomplish thermal management through two coupled cooling loops, both driven by a heat transfer fluid, and involve a recirculation fan to remove water and heat from the stack. There appears to be a certain advantage in using product water for these purposes within PEM hardware, because in that case a single fluid can serve both to control stack temperature, operating simultaneously as a heat transfer medium and through evaporation, and to provide the gas-phase moisture levels necessary to set the ionic conductor at appropriate performance levels. Moreover, the humidification cooling process automatically follows current loads. This design may remove the necessity for recirculation gas fans, thus demonstrating the long-term reliability essential for future space power hardware.