WorldWideScience

Sample records for electrical integrity group

  1. Resource Information and Forecasting Group; Electricity, Resources, & Building Systems Integration (ERBSI) (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2009-11-01

    Researchers in the Resource Information and Forecasting group at NREL provide scientific, engineering, and analytical expertise to help characterize renewable energy resources and facilitate the integration of these clean energy sources into the electricity grid.

  2. Integrated Multimedia Based Intelligent Group Decision Support System for Electrical Power Network

    Directory of Open Access Journals (Sweden)

    Ajay Kumar Saxena

    2002-05-01

    Full Text Available Electrical Power Network in recent time requires an intelligent, virtual environment based decision process for the coordination of all its individual elements and the interrelated tasks. Its ultimate goal is to achieve maximum productivity and efficiency through the efficient and effective application of generation, transmission, distribution, pricing and regulatory systems. However, the complexity of electrical power network and the presence of conflicting multiple goals and objectives postulated by various groups emphasized the need of an intelligent group decision support system approach in this field. In this paper, an Integrated Multimedia based Intelligent Group Decision Support System (IM1GDSS is presented, and its main components are analyzed and discussed. In particular attention is focused on the Data Base, Model Base, Central Black Board (CBB and Multicriteria Futuristic Decision Process (MFDP module. The model base interacts with Electrical Power Network Load Forecasting and Planning (EPNLFP Module; Resource Optimization, Modeling and Simulation (ROMAS Module; Electrical Power Network Control and Evaluation Process (EPNCAEP Module, and MFDP Module through CBB for strategic planning, management control, operational planning and transaction processing. The richness of multimedia channels adds a totally new dimension in a group decision making for Electrical Power Network. The proposed IMIGDSS is a user friendly, highly interactive group decision making system, based on efficient intelligent and multimedia communication support for group discussions, retrieval of content and multi criteria decision analysis.

  3. Integrated Electric Gas Turbine

    OpenAIRE

    Millsaps, Knox T.

    2010-01-01

    Patent An integrated electric gas turbine comprises a compressor that includes a plurality of airfoils. An electric motor is arranged to drive the compressor, and a combustor is arranged to receive compressed air from the compressor and further arranged to receive a fuel input. A turbine is arranged to receive the combustion gases from the combustor. A generator is integrated with the turbine and arranged to provide a power output. A controller is connected between the...

  4. Renewable Electricity Grid Integration Roadmap for Mexico. Supplement to the IEA Expert Group Report on Recommended Practices for Wind Integration Studies

    Energy Technology Data Exchange (ETDEWEB)

    Parsons, Brian [Evergreen Renewable Consulting, Evergreen, CO (United States); Cochran, Jaquelin [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Watson, Andrea [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Katz, Jessica [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Bracho, Ricardo [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2015-08-19

    As a recognized leader in efforts to mitigate global climate change, the Government of Mexico (GOM) works proactively to reduce emissions, demonstrating strong political will and capacity to comprehensively address climate change. Since 2010, the U.S. government (USG) has supported these efforts by partnering with Mexico under the Enhancing Capacity for Low Emission Development Strategies (EC-LEDS) program. Through the program, the USG has partnered with Mexico’s Ministry of Energy (SENER), as well as other government agencies, to support GOM in reaching its clean energy and climate change goals. Specifically, the EC-LEDS program is supporting GOM’s clean energy goal of generating 35% of its electricity from renewable energy (RE) by 2024. EC-LEDS, through the U.S. Agency for International Development (USAID) and the U.S Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL), has been collaborating with SENER and GOM interagency working group—the Consejo Consultivo para las Energías Renovables (Consultative Council on Renewable Energy)—to create a grid integration roadmap for variable RE. 1 A key objective in creating a grid integration roadmap is assessing likely impacts of wind and solar energy on the power system and modifying planning and operations accordingly. This paper applies best practices in conducting a grid integration study to the Mexican context.

  5. Variational integrators for electric circuits

    Energy Technology Data Exchange (ETDEWEB)

    Ober-Blöbaum, Sina, E-mail: sinaob@math.upb.de [Computational Dynamics and Optimal Control, University of Paderborn (Germany); Tao, Molei [Courant Institute of Mathematical Sciences, New York University (United States); Cheng, Mulin [Applied and Computational Mathematics, California Institute of Technology (United States); Owhadi, Houman; Marsden, Jerrold E. [Control and Dynamical Systems, California Institute of Technology (United States); Applied and Computational Mathematics, California Institute of Technology (United States)

    2013-06-01

    In this contribution, we develop a variational integrator for the simulation of (stochastic and multiscale) electric circuits. When considering the dynamics of an electric circuit, one is faced with three special situations: 1. The system involves external (control) forcing through external (controlled) voltage sources and resistors. 2. The system is constrained via the Kirchhoff current (KCL) and voltage laws (KVL). 3. The Lagrangian is degenerate. Based on a geometric setting, an appropriate variational formulation is presented to model the circuit from which the equations of motion are derived. A time-discrete variational formulation provides an iteration scheme for the simulation of the electric circuit. Dependent on the discretization, the intrinsic degeneracy of the system can be canceled for the discrete variational scheme. In this way, a variational integrator is constructed that gains several advantages compared to standard integration tools for circuits; in particular, a comparison to BDF methods (which are usually the method of choice for the simulation of electric circuits) shows that even for simple LCR circuits, a better energy behavior and frequency spectrum preservation can be observed using the developed variational integrator.

  6. Electric Vehicle Integration into Modern Power Networks

    DEFF Research Database (Denmark)

    Electric Vehicle Integration into Modern Power Networks provides coverage of the challenges and opportunities posed by the progressive integration of electric drive vehicles. Starting with a thorough overview of the current electric vehicle and battery state-of-the-art, this work describes dynami...

  7. 23 February 2010 - Polish Under Secretary of State, Ministry of Science and Higher Education, J. Szwed visiting CERN installations with sLHC Project Office T. Kurtyka and Machine Protection and Electrical Integrity Group Leader A. Siemko.

    CERN Document Server

    Michel Blanc

    2010-01-01

    Tirage 1002023-01: In LHCb experimental area with Machine Protection and Electrical Integrity Group Leader A. Siemko; Mission Counselor M. Cichucka; Counselor to the Minister M. Klimkiewicz, Under Secretary of State J. Szwed; LHCb Collaboration, national group leader, Henryk Niewodniczanski Institut of Nuclear Physics G. Polok, Collaboration Spokesperson A. Golutvin and Delegate to CERN Council A. Zalewska. Tirage 28: Visiting the Computing Centre with IT Department Head F. Hemmer Tirage 49: In CMS Control centre, buiding 354 with Collaboration Spokesperson G. Tonelli and CMS Collaboration, national group leader, University of Warsaw J. Krolikowski. Tirage 62: visiting ALICE exhibition area and counting room with Collaboration Spokesperson J. Schukraft. Tirage 82-99: Under Secretary of State address to the Polish Community Tirage 82: Machine Protection and Electrical Integrity Group Leader A. Siemko Tirage 83: Polish Delegate to CERN Council A. Zalewska. Tirage 85: Directorate Office E. Rondio Tirage 86: ATLA...

  8. Electric Vehicle Integration into Modern Power Networks

    DEFF Research Database (Denmark)

    Electric Vehicle Integration into Modern Power Networks provides coverage of the challenges and opportunities posed by the progressive integration of electric drive vehicles. Starting with a thorough overview of the current electric vehicle and battery state-of-the-art, this work describes dynamic...... software tools to assess the impacts resulting from the electric vehicles deployment on the steady state and dynamic operation of electricity grids, identifies strategies to mitigate them and the possibility to support simultaneously large-scale integration of renewable energy sources. New business models...... and control management architectures, as well as the communication infrastructure required to integrate electric vehicles as active demand are presented. Finally, regulatory issues of integrating electric vehicles into modern power systems are addressed. Inspired by two courses held under the EES...

  9. Electric vehicle integration into modern power networks

    CERN Document Server

    Garcia-Valle, Rodrigo

    2012-01-01

    Electric Vehicle Integration into Modern Power Networks provides coverage of the challenges and opportunities posed by the progressive integration of electric drive vehicles. Starting with a thorough overview of the current electric vehicle and battery state-of-the-art, this work describes dynamic software tools to assess the impacts resulting from the electric vehicles deployment on the steady state and dynamic operation of electricity grids, identifies strategies to mitigate them and the possibility to support simultaneously large-scale integration of renewable energy sources.New business mo

  10. A comparison of electric vehicle integration projects

    DEFF Research Database (Denmark)

    Andersen, Peter Bach; Garcia-Valle, Rodrigo; Kempton, Willett

    2012-01-01

    It is widely agreed that an intelligent integration of electric vehicles can yield benefits for electric vehicle owner, power grid, and the society as a whole. Numerous electric vehicle utilization concepts have been investigated ranging from the simple e.g. delayed charging to the more advanced e.......g. utilization of electric vehicles for ancillary services. To arrive at standardized solutions, it is helpful to analyze the market integration and utilization concepts, architectures and technologies used in a set of state-of-the art electric vehicle demonstration projects. The goal of this paper...... is to highlight different approaches to electric vehicle integration in three such projects and describe the underlying technical components which should be harmonized to support interoperability and a broad set of utilization concepts. The projects investigated are the American University of Delaware's V2G...

  11. Integrating Renewables in Electricity Markets

    DEFF Research Database (Denmark)

    Morales González, Juan Miguel; Conejo, Antonio J.; Madsen, Henrik

    This addition to the ISOR series addresses the analytics of the operations of electric energy systems with increasing penetration of stochastic renewable production facilities, such as wind- and solar-based generation units. As stochastic renewable production units become ubiquitous throughout el...

  12. Students' Difficulties with Integration in Electricity

    Science.gov (United States)

    Nguyen, Dong-Hai; Rebello, N. Sanjay

    2011-01-01

    This study investigates the common difficulties that students in introductory physics experience when solving problems involving integration in the context of electricity. We conducted teaching-learning interviews with 15 students in a second-semester calculus-based introductory physics course on several problems involving integration. We found…

  13. Spatial Grouping Determines Temporal Integration

    Science.gov (United States)

    Hermens, Frouke; Scharnowski, Frank; Herzog, Michael H.

    2009-01-01

    To make sense out of a continuously changing visual world, people need to integrate features across space and time. Despite more than a century of research, the mechanisms of features integration are still a matter of debate. To examine how temporal and spatial integration interact, the authors measured the amount of temporal fusion (a measure of…

  14. The Nikola project intelligent electric vehicle integration

    DEFF Research Database (Denmark)

    Andersen, Peter Bach; Marinelli, Mattia; Olesen, Ole Jan

    2014-01-01

    The electric vehicle (EV) has certain properties that elevate its relevance to the smart grid. If EV integration is to meet its potential in supporting an economic and secure power system and at the same time lower the operating costs for the owner, it is necessary to thoroughly and systematically...

  15. Quantum Groups from Path Integrals

    OpenAIRE

    Freed, Daniel S.

    1995-01-01

    Lecture notes from the 1994 CRM-CAP Summer School ``Particles and Fields '94''. Covers material written elsewhere in a more leisurely fashion, including many exercises. Describes derivation of quantum groups from the Chern-Simons lagrangian for the case of a finite gauge group.

  16. Spiritually and religiously integrated group psychotherapy

    DEFF Research Database (Denmark)

    Viftrup, Dorte Toudal; Hvidt, Niels Christian; Buus, Niels

    2013-01-01

    WE SYSTEMATICALLY REVIEWED THE RESEARCH LITERATURE ON SPIRITUALLY AND RELIGIOUSLY INTEGRATED GROUP PSYCHOTHERAPY TO ANSWER THE FOLLOWING THREE QUESTIONS: first, how are spirituality and religiosity defined; second, how are spiritual and religious factors characterized and integrated into group......, 8 articles were considered eligible for the review. Findings from the evaluation suggested that the concepts of spirituality and religiosity were poorly conceptualized and the way in which spiritual and religious factors were integrated into such group psychotherapies, which distinguished it from...

  17. Monomial integrals on the classical groups

    Science.gov (United States)

    Gorin, T.; López, G. V.

    2008-01-01

    This paper presents a powerful method to integrate general monomials on the classical groups with respect to their invariant (Haar) measure. The method has first been applied to the orthogonal group by one of the authors, Gorin [J. Math. Phys., 43, 3342 (2002)], and is here used to obtain similar integration formulas for the unitary and the unitary symplectic group. The integration formulas are all recursive, where the recursion parameter is the number of column (row) vectors from which the elements in the monomial are taken. This is an important difference to other integration methods. The integration formulas are easily implemented in a computer algebra environment, which allows us to compute a given monomial integral very efficiently. The result is always a rational function of the matrix dimension.

  18. Integrated Electrical Wire Insulation Repair System

    Science.gov (United States)

    Williams, Martha; Jolley, Scott; Gibson, Tracy; Parks, Steven

    2013-01-01

    An integrated system tool will allow a technician to easily and quickly repair damaged high-performance electrical wire insulation in the field. Low-melt polyimides have been developed that can be processed into thin films that work well in the repair of damaged polyimide or fluoropolymer insulated electrical wiring. Such thin films can be used in wire insulation repairs by affixing a film of this low-melt polyimide to the damaged wire, and heating the film to effect melting, flow, and cure of the film. The resulting repair is robust, lightweight, and small in volume. The heating of this repair film is accomplished with the use of a common electrical soldering tool that has been modified with a special head or tip that can accommodate the size of wire being repaired. This repair method can furthermore be simplified for the repair technician by providing replaceable or disposable soldering tool heads that have repair film already "loaded" and ready for use. The soldering tool heating device can also be equipped with a battery power supply that will allow its use in areas where plug-in current is not available

  19. Electrical power integration for lunar operations

    Science.gov (United States)

    Woodcock, Gordon

    1992-01-01

    Electrical power for future lunar operations is expected to range from a few kilowatts for an early human outpost to many megawatts for industrial operations in the 21st century. All electrical power must be imported as chemical, solar, nuclear, or directed energy. The slow rotation of the Moon and consequent long lunar night impose severe mass penalties on solar systems needing night delivery from storage. The cost of power depends on the cost of the power systems the cost of its transportation to the Moon, operating cost, and, of course, the life of the power system. The economic feasibility of some proposed lunar ventures depends in part on the cost of power. This paper explores power integration issues, costs, and affordability in the context of the following representative lunar ventures: (1) early human outpost (10 kWe); (2) early permanent lunar base, including experimental ISMU activities (100 kWe); (3) lunar oxygen production serving an evolved lunar base (500 kWe); (4) lunar base production of specialized high-value products for use on Earth (5 kWe); and (5) lunar mining and production of helium-3 (500 kWe). The schema of the paper is to project likely costs of power alternatives (including integration factors) in these power ranges, to select the most economic, to determine power cost contribution to the product or activities, to estimate whether the power cost is economically acceptable, and, finally, to offer suggestions for reaching acceptability where cost problems exist.

  20. Spiritually and religiously integrated group psychotherapy

    DEFF Research Database (Denmark)

    Viftrup, Dorte Toudal; Hvidt, Niels Christian; Buus, Niels

    2013-01-01

    WE SYSTEMATICALLY REVIEWED THE RESEARCH LITERATURE ON SPIRITUALLY AND RELIGIOUSLY INTEGRATED GROUP PSYCHOTHERAPY TO ANSWER THE FOLLOWING THREE QUESTIONS: first, how are spirituality and religiosity defined; second, how are spiritual and religious factors characterized and integrated into group...... psychotherapy; and, third, what is the outcome of the group psychotherapies? We searched in two databases: PsycINFO and PubMed. Inclusion and exclusion criteria and checklists from standardized assessment tools were applied to the research literature. Qualitative and quantitative papers were included. In total......, 8 articles were considered eligible for the review. Findings from the evaluation suggested that the concepts of spirituality and religiosity were poorly conceptualized and the way in which spiritual and religious factors were integrated into such group psychotherapies, which distinguished it from...

  1. Note on quantum groups and integrable systems

    Science.gov (United States)

    Popolitov, A.

    2016-01-01

    The free-field formalism for quantum groups [preprint ITEP-M3/94, CRM-2202 hep-th/9409093] provides a special choice of coordinates on a quantum group. In these coordinates the construction of associated integrable system [arXiv:1207.1869] is especially simple. This choice also fits into general framework of cluster varieties [math.AG/0311245]—natural changes in coordinates are cluster mutations.

  2. Some augmentation quotients of integral group rings

    Indian Academy of Sciences (India)

    M. Senthilkumar (Newgen Imaging) 1461 1996 Oct 15 13:05:22

    Some augmentation quotients of integral group rings. DEEPAK KUMAR GUMBER1, RAM KARAN2 and INDU PAL2. 1School of Mathematics and Computer Applications, Thapar University,. Patiala 147 004, India. 2Department of Mathematics, Kurukshetra University, Kurukshetra 136 119, India. E-mail: dkgumber@yahoo.

  3. Medical back belt with integrated neuromuscular electrical stimulation

    NARCIS (Netherlands)

    Bottenberg, E. (Eliza); Brinks, G.J. (Ger); Hesse, J. (Jenny)

    2014-01-01

    The medical back belt with integrated neuromuscular electrical stimulation is anorthopedic device, which has two main functions. The first function is to stimulate the backmuscles by using a neuromuscular electrical stimulation device that releases regular,electrical impulses. The second function of

  4. Integrated powertrain control for hybrid electric vehicles with electric variable transmission

    NARCIS (Netherlands)

    Kessels, J.T.B.A.; Foster, D.L.; Bosch, P.P.J. van den

    2009-01-01

    The electric variable transmission (EVT) offers a powersplit for hybrid electric vehicles by integrating two motor/ generator sets into one electric machine. This double rotor concept implements a continuously variable transmission between the engine and the driveline, including the possibility for

  5. Group therapy integrated with CAT: interactive Group therapy integrated with cognitive analytic therapy, understandings and tools

    OpenAIRE

    Ruppert, Margaret

    2013-01-01

    This qualitative study investigated bringing Cognitive Analytic Therapy (CAT) tools and understandings (Ryle & Kerr, 2002) into a time-limited (16 sessions) interactive, here-and-now, group therapy (Yalom,1985). Group members were not exposed to CAT or individual work with the two facilitators prior to the group. The study investigated the group members’ experience, particularly in respect of the CAT tools; the facilitators’ experience of integrating CAT tools and understandings into the grou...

  6. Integration of Social Information by Human Groups.

    Science.gov (United States)

    Granovskiy, Boris; Gold, Jason M; Sumpter, David J T; Goldstone, Robert L

    2015-07-01

    We consider a situation in which individuals search for accurate decisions without direct feedback on their accuracy, but with information about the decisions made by peers in their group. The "wisdom of crowds" hypothesis states that the average judgment of many individuals can give a good estimate of, for example, the outcomes of sporting events and the answers to trivia questions. Two conditions for the application of wisdom of crowds are that estimates should be independent and unbiased. Here, we study how individuals integrate social information when answering trivia questions with answers that range between 0% and 100% (e.g., "What percentage of Americans are left-handed?"). We find that, consistent with the wisdom of crowds hypothesis, average performance improves with group size. However, individuals show a consistent bias to produce estimates that are insufficiently extreme. We find that social information provides significant, albeit small, improvement to group performance. Outliers with answers far from the correct answer move toward the position of the group mean. Given that these outliers also tend to be nearer to 50% than do the answers of other group members, this move creates group polarization away from 50%. By looking at individual performance over different questions we find that some people are more likely to be affected by social influence than others. There is also evidence that people differ in their competence in answering questions, but lack of competence is not significantly correlated with willingness to change guesses. We develop a mathematical model based on these results that postulates a cognitive process in which people first decide whether to take into account peer guesses, and if so, to move in the direction of these guesses. The size of the move is proportional to the distance between their own guess and the average guess of the group. This model closely approximates the distribution of guess movements and shows how outlying

  7. Electric Vehicle Fleet Integration in the Danish EDISON Project

    DEFF Research Database (Denmark)

    Andersen, Peter Bach; Træholt, Chresten; Marra, Francesco

    2010-01-01

    The Danish EDISON project has been launched to investigate how a large fleet of electric vehicles (EVs) can be integrated in a way that supports the electric grid while benefitting both the individual car owners and society as a whole through reductions in CO2 emissions. The consortium partners...

  8. EDISON – Study on optimal grid integration of electric vehicles

    DEFF Research Database (Denmark)

    Foosnæs, Anders Holm; Andersen, Claus Amtrup; Christensen, Linda

    2011-01-01

    The Danish EDISON project has been launched to investigate how a large fleet of electric vehicles (EVs) can be integrated in a way that supports the electric grid while benefitting both individual car owners, and society as a whole through reductions in CO2 emissions. The consortium partners...

  9. Some intersections and identifications in integral group rings

    Indian Academy of Sciences (India)

    Some Intersections and Identifications in Integral Group Rings. Ram Karan Deepak Kumar. Volume 112 Issue 2 May ... Integral group ring; augmentation ideal; subgroup identification. Abstract. Let be the integral group ring of a group and () its augmentation ideal. For a free group and a normal subgroup of , ...

  10. Integrated VLF - Electromagnetic And Electrical Resistivity Survey ...

    African Journals Online (AJOL)

    ... beneath BH5 for confined fractures. Borehole yields vary from 0.33 - 2.0 l/s, where two abortive (dry) boreholes (BH1 & 2) were previously drilled. KEY WORDS: VLF - EM, Electrical Resistivity, Linear Features, Groundwater Development, Basement Complex Area. Global Journal of Geological Sciences Vol.3(1) 2005: 71- ...

  11. Intelligent Electric Vehicle Integration - Domain Interfaces and Supporting Informatics

    DEFF Research Database (Denmark)

    Andersen, Peter Bach

    This thesis seeks to apply the field of informatics to the intelligent integration of electric vehicles into the power system. The main goal is to release the potential of electric vehicles in relation to a reliable, economically efficient power system based on renewables. To make intelligent EV...... integration a reality, it is prudent to understand the domain in its entirety. In this thesis, this is reflected by a thorough investigation of the stakeholders most relevant to the synergistic relationship between electric vehicle and grid. The rst investigation addresses the power market. The market can...... give system operators access to the exibility of electric vehicles while at the same time creating an immediate economic incentive for the EV owner. A fleet operator is introduced to allow a fleet of electric vehicles to participate in the markets. Examples are provided on the specic markets...

  12. Energy Systems Integration Partnerships: NREL + Hawaiian Electric

    Energy Technology Data Exchange (ETDEWEB)

    2017-05-23

    NREL and the Hawaiian Electric Companies are collaborating with the solar and inverter industries to implement advanced inverters, allowing greater solar photovoltaic (PV) penetrations that will support the State of Hawaii's goal to achieve 100% renewable energy by 2045. Advanced inverters will help maintain stable grid operations by riding through grid disturbances when the PV output is needed, operating autonomously to smooth voltage fluctuations, and coordinating the start-up and reconnection of PV systems and other distributed energy resources.

  13. A class of Fourier integrals based on the electric potential of an elongated dipole.

    Science.gov (United States)

    Skianis, Georgios Aim

    2014-01-01

    In the present paper the closed expressions of a class of non tabulated Fourier integrals are derived. These integrals are associated with a group of functions at space domain, which represent the electric potential of a distribution of elongated dipoles which are perpendicular to a flat surface. It is shown that the Fourier integrals are produced by the Fourier transform of the Green's function of the potential of the dipole distribution, times a definite integral in which the distribution of the polarization is involved. Therefore the form of this distribution controls the expression of the Fourier integral. Introducing various dipole distributions, the respective Fourier integrals are derived. These integrals may be useful in the quantitative interpretation of electric potential anomalies produced by elongated dipole distributions, at spatial frequency domain.

  14. Integration of electric drive vehicles in the Danish electricity network with high wind power penetration

    DEFF Research Database (Denmark)

    Chandrashekhara, Divya K; Østergaard, Jacob; Larsen, Esben

    2010-01-01

    /conventional) which are likely to fuel these cars. The study was carried out considering the Danish electricity network state around 2025, when the EDV penetration levels would be significant enough to have an impact on the power system. Some of the interesting findings of this study are - EDV have the potential......This paper presents the results of a study carried out to examine the feasibility of integrating electric drive vehicles (EDV) in the Danish electricity network which is characterised by high wind power penetration. One of the main aims of this study was to examine the effect of electric drive...... vehicles on the Danish electricity network, wind power penetration and electricity market. In particular the study examined the effect of electric drive vehicles on the generation capacity constraints, load curve, cross border transmission capacity and the type of generating sources (renewable...

  15. Actions to promote energy efficient electric motors. Motors study group

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, A.T. de [Coimbra Univ. (PT). Inst. of Systems and Robotics (ISR)

    1996-10-01

    Motor electricity consumption is influenced by many factors including: motor efficiency, motor speed controls, power supply quality, harmonics, systems oversizing, distribution network, mechanical transmission system, maintenance practices, load management and cycling, and the efficiency of the end-use device (e.g. fan, pump, etc.). Due to their importance, an overview of these factors is presented in this report. This study also describes the electricity use in the industrial and tertiary sectors and the electricity consumption associated with the different types of electric motors systems in the Member States of the European Union, as well as estimated future evolution until 2010. The studies for individual countries were carried out by the different partners of the motors study group at a previous stage. The study has found that there is a lack of accurate information about the motor electricity consumption, installed motor capacity and the motor market in almost all the European Union countries and only some general statistical sources are available. There is little field data, which is mainly available in Denmark, France, Italy and the Netherlands. Due to this lack of primary information, some common assumptions were made, based on the experience of the members of the study group. This lack of end-use characterisation data shows the need for improvement from the point of view of current knowledge. It is therefore recommended that further research is undertaken to arrive at more accurate figures. These could be the basis for a better understanding for motor use in practice and - as a consequence - for a more precise appraisal of potentials and barriers to energy efficiency. (orig.)

  16. Integration of Electric Vehicles in Low Voltage Danish Distribution Grids

    DEFF Research Database (Denmark)

    Pillai, Jayakrishnan Radhakrishna; Thøgersen, Paul; Møller, Jan

    2012-01-01

    in the electricity grid operation, a careful examination in the local electricity system is essential. This paper investigates the degree of EV penetration and its key influence on the low voltage distribution grids. Three detailed models of residential grids in Denmark are considered as test cases in this study......Electric Vehicles (EVs) are considered as one of the important components of the future intelligent grids. Their role as energy storages in the electricity grid could provide local sustainable solutions to support more renewable energy. In order to estimate the extent of interaction of EVs...... are reflected as the major technical constraint to the stable operation of the electricity grids for integrating more EVs, when compared to the thermal loading on the cables....

  17. Control strategies for power distribution networks with electric vehicles integration

    DEFF Research Database (Denmark)

    Hu, Junjie

    Demand side resources, like electric vehicles (EVs), can become integral parts of a smart grids because instead of just consuming power they are capable of providing valuable services to power systems. EVs can be used to balance the intermittent renewable energy resources such as wind and solar....... EVs can absorb energy during periods of high electricity production and feed the electricity back into the grid when the demand is high or in situations of insucient electricity generation. However, extra loads created by the increasing number of EVs may have adverse impacts on the distribution...... strategies supported by an increased use of information and communication technology. This is the idea of the smart grid. The smart grid is a next-generation electrical power system that is typied by the increased use of communications and information technology in the generation, delivery and consumption...

  18. Network Constrained Transactive Control for Electric Vehicles Integration

    DEFF Research Database (Denmark)

    Hu, Junjie; Yang, Guangya; Bindner, Henrik W.

    2015-01-01

    actors are considered: distribution system operator (DSO), fleet operators and EV owners. In the lower level of the hierarchy, the fleet operator centrally manages the charging schedule of electric vehicles; in the upper level of the hierarchy, the DSO uses transactive control technique to coordinate......Electric vehicles (EVs) are commonly recognized as smart grid assets in addition to their environmental benefits. However, uncoordinated charging or sole cost minimization based charging of electric vehicles may bring undesirable peak demands and voltage violations in the distribution system....... This paper applies the transactive control concept to integrate electric vehicles into the power distribution system with the purpose of minimizing the charging cost of electric vehicles as well as preventing grid congestions and voltage violations. A hierarchical EV management system is proposed where three...

  19. Integrated engine-generator concept for aircraft electric secondary power

    Science.gov (United States)

    Secunde, R. R.; Macosko, R. P.; Repas, D. S.

    1972-01-01

    The integrated engine-generator concept of locating an electric generator inside an aircraft turbojet or turbofan engine concentric with, and driven by, one of the main engine shafts is discussed. When properly rated, the generator can serve as an engine starter as well as a generator of electric power. The electric power conversion equipment and generator controls are conveniently located in the aircraft. Preliminary layouts of generators in a large engine together with their physical sizes and weights indicate that this concept is a technically feasible approach to aircraft secondary power.

  20. Motor integrated permanent magnet gear in a battery electrical vehicle

    DEFF Research Database (Denmark)

    Frandsen, Tommy; Mathe, Laszlo; Berg, Nick Ilsø

    2013-01-01

    This paper presents the physical construction and test results of two new demonstrators of a Motor Integrated Permanent Magnet Gear (MIPMG), which is a second version of an already tested demonstrator. The demonstrators will be used as traction units for a Battery Electrical Vehicle (BEV) and the......This paper presents the physical construction and test results of two new demonstrators of a Motor Integrated Permanent Magnet Gear (MIPMG), which is a second version of an already tested demonstrator. The demonstrators will be used as traction units for a Battery Electrical Vehicle (BEV...

  1. Motor Integrated Permanent Magnet Gear in a Battery Electrical Vehicle

    DEFF Research Database (Denmark)

    Frandsen, Tommy; Mathe, Laszlo; Berg, Nick Ilsø

    2015-01-01

    This paper presents the physical construction and test results of two new demonstrators of a Motor Integrated Permanent Magnet Gear (MIPMG), which is a second version of an already tested demonstrator. The demonstrators will be used as traction units for a Battery Electrical Vehicle (BEV) and the......This paper presents the physical construction and test results of two new demonstrators of a Motor Integrated Permanent Magnet Gear (MIPMG), which is a second version of an already tested demonstrator. The demonstrators will be used as traction units for a Battery Electrical Vehicle (BEV...

  2. Electric vehicles and large-scale integration of wind power

    DEFF Research Database (Denmark)

    Liu, Wen; Hu, Weihao; Lund, Henrik

    2013-01-01

    integration by 8%. The application of EVs benefits from saving both energy system cost and fuel cost. However, the negative consequences of decreasing energy system efficiency and increasing the CO2 emission should be noted when applying the hydrogen fuel cell vehicle (HFCV). The results also indicate...... was 6.5% in 2009 and which has the plan to develop large-scale wind power. The results show that electric vehicles (EVs) have the ability to balance the electricity demand and supply and to further the wind power integration. In the best case, the energy system with EV can increase wind power...

  3. Optimal Wind Energy Integration in Large-Scale Electric Grids

    Science.gov (United States)

    Albaijat, Mohammad H.

    The major concern in electric grid operation is operating under the most economical and reliable fashion to ensure affordability and continuity of electricity supply. This dissertation investigates the effects of such challenges, which affect electric grid reliability and economic operations. These challenges are: 1. Congestion of transmission lines, 2. Transmission lines expansion, 3. Large-scale wind energy integration, and 4. Phaser Measurement Units (PMUs) optimal placement for highest electric grid observability. Performing congestion analysis aids in evaluating the required increase of transmission line capacity in electric grids. However, it is necessary to evaluate expansion of transmission line capacity on methods to ensure optimal electric grid operation. Therefore, the expansion of transmission line capacity must enable grid operators to provide low-cost electricity while maintaining reliable operation of the electric grid. Because congestion affects the reliability of delivering power and increases its cost, the congestion analysis in electric grid networks is an important subject. Consequently, next-generation electric grids require novel methodologies for studying and managing congestion in electric grids. We suggest a novel method of long-term congestion management in large-scale electric grids. Owing to the complication and size of transmission line systems and the competitive nature of current grid operation, it is important for electric grid operators to determine how many transmission lines capacity to add. Traditional questions requiring answers are "Where" to add, "How much of transmission line capacity" to add, and "Which voltage level". Because of electric grid deregulation, transmission lines expansion is more complicated as it is now open to investors, whose main interest is to generate revenue, to build new transmission lines. Adding a new transmission capacity will help the system to relieve the transmission system congestion, create

  4. Integrated design by optimization of electrical energy systems

    CERN Document Server

    Roboam, Xavier

    2013-01-01

    This book proposes systemic design methodologies applied to electrical energy systems, in particular integrated optimal design with modeling and optimization methods and tools. It is made up of six chapters dedicated to integrated optimal design. First, the signal processing of mission profiles and system environment variables are discussed. Then, optimization-oriented analytical models, methods and tools (design frameworks) are proposed. A "multi-level optimization" smartly coupling several optimization processes is the subject of one chapter. Finally, a technico-economic optimizatio

  5. Driving Pattern Analysis for Electric Vehicle (EV) Grid Integration Study

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Nielsen, Arne Hejde; Østergaard, Jacob

    2010-01-01

    In order to facilitate the integration of electric vehicles (EVs) into the Danish power system, the driving data in Denmark were analyzed to extract the information of driving distances and driving time periods which were used to represent the driving requirements and the EV unavailability...

  6. 78 FR 12042 - Electric Grid Integration Technical Workshops

    Science.gov (United States)

    2013-02-21

    ... Electric Grid Integration Technical Workshops AGENCY: Grid Tech Team, U.S. Department of Energy. ACTION... investments over the next five years. Accordingly, DOE is compiling key reference material and input from a... workshop discussions, including consideration of public comments, will provide a key resource to help DOE...

  7. Restoring heart function and electrical integrity: closing the circuit

    Science.gov (United States)

    Monteiro, Luís Miguel; Vasques-Nóvoa, Francisco; Ferreira, Lino; Pinto-do-Ó, Perpétua; Nascimento, Diana Santos

    2017-04-01

    Cardiovascular diseases are the main cause of death in the world and are often associated with the occurrence of arrhythmias due to disruption of myocardial electrical integrity. Pathologies involving dysfunction of the specialized cardiac excitatory/conductive tissue are also common and constitute an added source of morbidity and mortality since current standard therapies withstand a great number of limitations. As electrical integrity is essential for a well-functioning heart, innovative strategies have been bioengineered to improve heart conduction and/or promote myocardial repair, based on: (1) gene and/or cell delivery; or (2) conductive biomaterials as tools for cardiac tissue engineering. Herein we aim to review the state-of-art in the area, while briefly describing the biological principles underlying the heart electrical/conduction system and how this system can be disrupted in heart disease. Suggestions regarding targets for future studies are also presented.

  8. Elspot: Nord Pool Spot Integration in MASCEM Electricity Market Simulator

    DEFF Research Database (Denmark)

    Fernandes, Ricardo; Santos, Gabriel; Praca, Isabel

    2014-01-01

    models and player types as possible. This paper presents a new negotiation model implemented in MASCEM based on the negotiation model used in day-ahead market (Elspot) of Nord Pool. This is a key module to study competitive electricity markets, as it presents well defined and distinct characteristics......The energy sector in industrialized countries has been restructured in the last years, with the purpose of decreasing electricity prices through the increase in competition, and facilitating the integration of distributed energy resources. However, the restructuring process increased the complexity...... (Multi-Agent Simulator of Competitive Electricity Markets), a multi-agent based simulator that models real electricity markets. To reinforce MASCEM with the capability of recreating the elect ricity markets reality in the fullest possible extent, it is crucial to make it able to simulate as many market...

  9. Integral Solution of 3D Electric Field of a Disconnector

    Directory of Open Access Journals (Sweden)

    Pavel Karban

    2008-01-01

    Full Text Available The disconnectors belong to elements widely used in electrical power engineering and apparatus technology for disconnecting various electric circuits. Usually they work without voltage (the circuit is first switched off by a circuit breaker. Nevertheless, in a fault regime the contacts of the disconnector may carry the full voltage, which may result in the electric arc between them at the moment when the movable contact approaches to the fixed one. In order to estimate this moment it is necessary to know the time evolution of the electric field in the domain between both contacts. This problem is solved in 3D (in somewhat simplified geometry by the integral technique. The theoretical analysis is supplemented with an illustrative example whose results are discussed.

  10. Some augmentation quotients of integral group rings

    Indian Academy of Sciences (India)

    Let be a group and be a subgroup of . A complete description of ( G ) n ( H ) / n + 1 ( H ) is given, and as a consequence the structures of ()/() and 2 ( G ) / 2 ( H ) are determined. Also, the structure of n ( G ) / n ( H ) for all ≥ 1 is determined when is a free group.

  11. Integration of Social Information by Human Groups

    National Research Council Canada - National Science Library

    Granovskiy, Boris; Gold, Jason M; Sumpter, David J.T; Goldstone, Robert L

    2015-01-01

    We consider a situation in which individuals search for accurate decisions without direct feedback on their accuracy, but with information about the decisions made by peers in their group. The “wisdom of crowds...

  12. Working Group on Virtual Data Integration

    Energy Technology Data Exchange (ETDEWEB)

    Williams, D. N. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Palanisamy, G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); van Dam, K. K. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-02-04

    This report is the outcome of a workshop commissioned by the U.S. Department of Energy’s (DOE) Climate and Environmental Sciences Division (CESD) to examine current and future data infrastructure requirements foundational for achieving CESD scientific mission goals in advancing a robust, predictive understanding of Earth’s climate and environmental systems. Over the past several years, data volumes in CESD disciplines have risen sharply to unprecedented levels (tens of petabytes). Moreover, the complexity and diversity of this research data— including simulations, observations, and reanalysis— have grown significantly, posing new challenges for data capture, storage, verification, analysis, and integration. With the trends of increased data volume (in the hundreds of petabytes), more complex analysis processes, and growing cross-disciplinary collaborations, it is timely to investigate whether the CESD community has the computational and data support needed to fully realize the scientific potential of its data collections. In recognition of the challenges, a partnership is forming across CESD and among national and international agencies to examine the viability of creating an integrated, collaborative data infrastructure: a Virtual Laboratory. The overarching goal of this report is to identify the community’s key data technology requirements and high-priority development needs for sustaining and growing its scientific discovery potential. The report also aims to map these requirements to existing solutions and to identify gaps in current services, tools, and infrastructure that will need to be addressed in the short, medium, and long term to advance scientific progress.

  13. Integration of electric vehiclesin cooper atives taxi ambato. Ecuador

    Directory of Open Access Journals (Sweden)

    Mery Esperanza Ruiz Guajala

    2015-11-01

    Full Text Available The transition from combustion vehicles towards a new electrical system friendly to the environment, is a decision to be taken by carrier based on cost-benefit analysis which generates buying it, and contribute to society not only for the service they provide, but to prevent air pollution we breathe, and if we add the future energy supply, since the Ecuadorian State in 2016 will provide the whole country of this important resource. The study focuses on two parts: the first on surveys of taxi owners to describe their perception of the integration of electric vehicles, and the second in determining the economic and financial feasibility of acquiring the vehicle Nissan Leaf by the member of the cooperative taxi. The most important conclusion is that the carriers are willing to buy an electric vehicle to mitigate the emission of toxic gases, and that its decision would save 50% in annual operating costs of your vehicle.

  14. Fermionic functional integrals and the renormalization group

    CERN Document Server

    Feldman, Joel; Trubowitz, Eugene

    2002-01-01

    This book, written by well-known experts in the field, offers a concise summary of one of the latest and most significant developments in the theoretical analysis of quantum field theory. The renormalization group is the name given to a technique for analyzing the qualitative behavior of a class of physical systems by iterating a map on the vector space of interactions for the class. In a typical nonrigorous application of this technique, one assumes, based on one's physical intuition, that only a certain finite dimensional subspace (usually of dimension three or less) is important. The material in this book concerns a technique for justifying this approximation in a broad class of fermionic models used in condensed matter and high energy physics. This volume is based on the Aisenstadt Lectures given by Joel Feldman at the Centre de Recherches Mathematiques (Montreal, Canada). It is suitable for graduate students and research mathematicians interested in mathematical physics. Included are many problems and so...

  15. Growth of fundamental group for Finsler manifolds with integral Ricci ...

    Indian Academy of Sciences (India)

    Keywords. Finsler manifold; fundamental group; integral Ricci curvature; uniformity constant; reversibility. Abstract. In this paper, an upper bound on the growth of fundamental group for a class of Finsler manifolds with integral Ricci curvature bound is given. This generalizes the corresponding results with pointwise Ricci ...

  16. The prime graph conjecture for integral group rings of some alternatings groups

    Directory of Open Access Journals (Sweden)

    Mohamed Salim

    2013-03-01

    Full Text Available We investigate the classical Zassenhaus Conjecture (ZC for integral group rings of alternating groups A9 and A10. Even the question (ZC remains open as no counterexample is known up to date, it been confirmed for special types of groups such as nilpotent groups by Roggenkamp, Scot and Weiss. However, a new method based on the partial augmentation of torsion units been established by Luthar and Passi to confirm the (ZC for A5. Later a weaker version of (ZC was proposed in 2007, we call it the Prime Graph Conjecture (PGC about the Gruenberg-Kegel (prime graph of the group of all normalized units of the integral group ring of a finite group. Recently, the (PGC has a positive answer for solvable groups, Frobenius groups and several simple groups. Here, as a consequence of our results, we confirm the (PGC for integral group rings of alternating groups An for all n<11.

  17. 77 FR 11515 - Application To Export Electric Energy; Pilot Power Group, Inc.

    Science.gov (United States)

    2012-02-27

    ... Power proposes to export to Mexico would be surplus energy purchased from electric utilities, Federal... date listed above. Comments on the Pilot Power application to export electric energy to Mexico should... Application To Export Electric Energy; Pilot Power Group, Inc. AGENCY: Office of Electricity Delivery and...

  18. 76 FR 53888 - Application to Export Electric Energy; Morgan Stanley Capital Group Inc.

    Science.gov (United States)

    2011-08-30

    ...-year term. The electric energy that MSCG proposes to export to Mexico would be surplus energy purchased... date listed above. Comments on the MSCG application to export electric energy to Mexico should be... Application to Export Electric Energy; Morgan Stanley Capital Group Inc. AGENCY: Office of Electricity...

  19. European energy markets integration and its effects on prices and efficiency of electricity producing firms

    OpenAIRE

    Armada Ramírez, Ferran

    2016-01-01

    [eng] In this work we investigate the effect of energy (electricity) market integration in Europe and its effects on electricity prices and efficiency improvements in electricity producing firms. We first describe at detail the electricity sector, the role of electricity markets, the main characteristics of electricity as a commodity as well as the main features of this particular and strategic sector, we speak about the evolution of consumption of electricity in developed countries and parti...

  20. Electric vehicle integration in a real-time market

    DEFF Research Database (Denmark)

    Pedersen, Anders Bro

    This project is rooted in the EDISON project, which dealt with Electrical Vehicle (EV) integration into the existing power grid, as well as with the infrastructure needed to facilitate the ever increasing penetration of fluctuating renewable energy resources like e.g. wind turbines. In the EDISON...... with an externally simulated model of the power grid, it is be possible, in real-time, to simulate the impact of EV charging and help to identify bottlenecks in the system. In EDISON the vehicles are aggregated using an entity called a Virtual Power Plant (VPP); a central server monitoring and controlling...... the distributed energy resources registered with it, in order to make them appear as a single producer in the eyes of the market. Although the concept of a VPP is used within the EcoGrid EU project, the idea of more individual control is introduced through a new proposed real-time electricity market, where...

  1. 77 FR 70484 - Preoperational Testing of Onsite Electric Power Systems To Verify Proper Load Group Assignments...

    Science.gov (United States)

    2012-11-26

    ... COMMISSION Preoperational Testing of Onsite Electric Power Systems To Verify Proper Load Group Assignments... Power Systems to Verify Proper Load Group Assignments, Electrical Separation, and Redundancy.'' DG-1294... encompass preoperational testing of electrical power systems used to meet current Station Blackout...

  2. 29 October 2013 - Former Director-General of IAEA H. Blix on the occasion of the Thorium Energy Conference at CERN with Chair of the ThEC13 Organization Committee E. Lillestol and Author of the book “Atome Vert” (Green Atom) J.-C. de Mestral; in the LHC tunnel at Point 1 with Technology Department, Machine Protection & Electrical Integrity Group, Performance Evaluation Section Member A. Verweij.

    CERN Multimedia

    Anna Pantelia

    2013-01-01

    29 October 2013 - Former Director-General of IAEA H. Blix on the occasion of the Thorium Energy Conference at CERN with Chair of the ThEC13 Organization Committee E. Lillestol and Author of the book “Atome Vert” (Green Atom) J.-C. de Mestral; in the LHC tunnel at Point 1 with Technology Department, Machine Protection & Electrical Integrity Group, Performance Evaluation Section Member A. Verweij.

  3. Science Integrating Learning Objectives: A Cooperative Learning Group Process

    Science.gov (United States)

    Spindler, Matt

    2015-01-01

    The integration of agricultural and science curricular content that capitalizes on natural and inherent connections represents a challenge for secondary agricultural educators. The purpose of this case study was to create information about the employment of Cooperative Learning Groups (CLG) to enhance the science integrating learning objectives…

  4. Electric organ discharge diversity in the genus Gymnotus: anatomo-functional groups and electrogenic mechanisms.

    Science.gov (United States)

    Rodríguez-Cattáneo, A; Aguilera, P; Cilleruelo, E; Crampton, W G R; Caputi, A A

    2013-04-15

    Previous studies describe six factors accounting for interspecific diversity of electric organ discharge (EOD) waveforms in Gymnotus. At the cellular level, three factors determine the locally generated waveforms: (1) electrocyte geometry and channel repertoire; (2) the localization of synaptic contacts on electrocyte surfaces; and (3) electric activity of electromotor axons preceding the discharge of electrocytes. At the organismic level, three factors determine the integration of the EOD as a behavioral unit: (4) the distribution of different types of electrocytes and specialized passive tissue forming the electric organ (EO); (5) the neural mechanisms of electrocyte discharge coordination; and (6) post-effector mechanisms. Here, we reconfirm the importance of the first five of these factors based on comparative studies of a wider diversity of Gymnotus than previously investigated. Additionally, we report a hitherto unseen aspect of EOD diversity in Gymnotus. The central region of the EO (which has the largest weight on the conspecific-received field) usually exhibits a negative-positive-negative pattern where the delay between the early negative and positive peaks (determined by neural coordination mechanisms) matches the delay between the positive and late negative peaks (determined by electrocyte responsiveness). Because delays between peaks typically determine the peak power frequency, this matching implies a co-evolution of neural and myogenic coordination mechanisms in determining the spectral specificity of the intraspecific communication channel. Finally, we define four functional species groups based on EO/EOD structure. The first three exhibit a heterogeneous EO in which doubly innervated electrocytes are responsible for a main triphasic complex. Group I species exhibit a characteristic cephalic extension of the EO. Group II species exhibit an early positive component of putative neural origin, and strong EO auto-excitability. Group III species exhibit

  5. Future conditions for integration of the Baltic Electricity Supply System

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The economies of Estonia, Latvia and Lithuania developed in close association with the north-west region of the former Soviet Union. This is especially true for energy supply systems and electricity generation and transmission; the Baltic States depend on Russia for much of their primary energy needs, and export power to Russia and Belarus. In restructuring their electricity industries, the Baltic States hope to establish closer relationships and trade with Western Europe. The initial focus has been on changes to the legislative framework, industry restructuring and the establishment of new regulatory institutions. Vertically integrated utilities are in the process of being broken up into a number of separate generation, transmission and distribution companies. This restructuring is a prelude to privatisation. The states aim to establish a common power market among themselves, and hope to integrate this market with neighbouring (Nordic and European) markets. Despite the target set by the Baltic authorities of a common market by 2001, there is little clarity, as yet, on the framework and guidelines for the structure and functioning of the market. This process is supported by other players in the region, and the EU has recently prioritised closer co-operation and harmonisation of power networks in the Baltic Sea region. The Swedish National Energy Administration has identified cooperation on energy and environmental issues in the Baltic Sea region as one of its priorities. Consequently, the Administration commissioned ECON to analyse the conditions for closer linkages between the Baltic and Nordic electricity systems. This report presents the findings of this analysis.

  6. 77 FR 47043 - Work Group on Measuring Systems for Electric Vehicle Fueling

    Science.gov (United States)

    2012-08-07

    ... National Institute of Standards and Technology Work Group on Measuring Systems for Electric Vehicle Fueling... devices and systems used to assess charges to consumers for electric vehicle fuel. There is no cost for... residential and business locations and those used to measure and sell electricity dispensed as a vehicle fuel...

  7. An integrated approach for facilities planning by ELECTRE method

    Science.gov (United States)

    Elbishari, E. M. Y.; Hazza, M. H. F. Al; Adesta, E. Y. T.; Rahman, Nur Salihah Binti Abdul

    2018-01-01

    Facility planning is concerned with the design, layout, and accommodation of people, machines and activities of a system. Most of the researchers try to investigate the production area layout and the related facilities. However, few of them try to investigate the relationship between the production space and its relationship with service departments. The aim of this research to is to integrate different approaches in order to evaluate, analyse and select the best facilities planning method that able to explain the relationship between the production area and other supporting departments and its effect on human efforts. To achieve the objective of this research two different approaches have been integrated: Apple’s layout procedure as one of the effective tools in planning factories, ELECTRE method as one of the Multi Criteria Decision Making methods (MCDM) to minimize the risk of getting poor facilities planning. Dalia industries have been selected as a case study to implement our integration the factory have been divided two main different area: the whole facility (layout A), and the manufacturing area (layout B). This article will be concerned with the manufacturing area layout (Layout B). After analysing the data gathered, the manufacturing area was divided into 10 activities. There are five factors that the alternative were compared upon which are: Inter department satisfactory level, total distance travelled for workers, total distance travelled for the product, total time travelled for the workers, and total time travelled for the product. Three different layout alternatives have been developed in addition to the original layouts. Apple’s layout procedure was used to study and evaluate the different alternatives layouts, the study and evaluation of the layouts was done by calculating scores for each of the factors. After obtaining the scores from evaluating the layouts, ELECTRE method was used to compare the proposed alternatives with each other and with

  8. Integrable systems twistors, loop groups, and Riemann surfaces

    CERN Document Server

    Hitchin, NJ; Ward, RS

    2013-01-01

    This textbook is designed to give graduate students an understanding of integrable systems via the study of Riemann surfaces, loop groups, and twistors. The book has its origins in a series of lecture courses given by the authors, all of whom are internationally known mathematicians and renowned expositors. It is written in an accessible and informal style, and fills a gap in the existing literature. The introduction by Nigel Hitchin addresses the meaning of integrability: how do werecognize an integrable system? His own contribution then develops connections with algebraic geometry, and inclu

  9. Medical Group Structural Integration May Not Ensure That Care Is Integrated, From The Patient's Perspective.

    Science.gov (United States)

    Kerrissey, Michaela J; Clark, Jonathan R; Friedberg, Mark W; Jiang, Wei; Fryer, Ashley K; Frean, Molly; Shortell, Stephen M; Ramsay, Patricia P; Casalino, Lawrence P; Singer, Sara J

    2017-05-01

    Structural integration is increasing among medical groups, but whether these changes yield care that is more integrated remains unclear. We explored the relationships between structural integration characteristics of 144 medical groups and perceptions of integrated care among their patients. Patients' perceptions were measured by a validated national survey of 3,067 Medicare beneficiaries with multiple chronic conditions across six domains that reflect knowledge and support of, and communication with, the patient. Medical groups' structural characteristics were taken from the National Study of Physician Organizations and included practice size, specialty mix, technological capabilities, and care management processes. Patients' survey responses were most favorable for the domain of test result communication and least favorable for the domain of provider support for medication and home health management. Medical groups' characteristics were not consistently associated with patients' perceptions of integrated care. However, compared to patients of primary care groups, patients of multispecialty groups had strong favorable perceptions of medical group staff knowledge of patients' medical histories. Opportunities exist to improve patient care, but structural integration of medical groups might not be sufficient for delivering care that patients perceive as integrated. Project HOPE—The People-to-People Health Foundation, Inc.

  10. Analysis for Large Scale Integration of Electric Vehicles into Power Grids

    DEFF Research Database (Denmark)

    Hu, Weihao; Chen, Zhe; Wang, Xiaoru

    2011-01-01

    Electric Vehicles (EVs) provide a significant opportunity for reducing the consumption of fossil energies and the emission of carbon dioxide. With more and more electric vehicles integrated in the power systems, it becomes important to study the effects of EV integration on the power systems......, especially the low and middle voltage level networks. In the paper, the basic structure and characteristics of the electric vehicles are introduced. The possible impacts of large scale integration of electric vehicles on the power systems especially the advantage to the integration of the renewable energies...... are discussed. Finally, the research projects related to the large scale integration of electric vehicles into the power systems are introduced, it will provide reference for large scale integration of Electric Vehicles into power grids....

  11. Application of integral equation theory to analyze stability of electric field in multimode microwave heating cavity

    Science.gov (United States)

    Tang, Zhengming; Hong, Tao; Chen, Fangyuan; Zhu, Huacheng; Huang, Kama

    2017-10-01

    Microwave heating uniformity is mainly dependent on and affected by electric field. However, little study has paid attention to its stability characteristics in multimode cavity. In this paper, this problem is studied by the theory of Freedholm integral equation. Firstly, Helmholtz equation and the electric dyadic Green's function are used to derive the electric field integral equation. Then, the stability of electric field is demonstrated as the characteristics of solutions to Freedholm integral equation. Finally, the stability characteristics are obtained and verified by finite element calculation. This study not only can provide a comprehensive interpretation of electric field in multimode cavity but also help us make better use of microwave energy.

  12. Electricity market integration: Redistribution effect versus resource reallocation

    Energy Technology Data Exchange (ETDEWEB)

    Finon, Dominique [Gis LARSEN (Laboratoire d' Analyse economique des Reseaux et des Systemes Energetiques) (France); CIRED (Centre International de Recherche sur l' Environnement et le Developpement) (France)], E-mail: finon@centre-cired.fr; Romano, Elliot [Commission de Regulation de l' Energie (France)

    2009-08-15

    Summary: In countries with a significant amount of low variable cost generation capacity, the integration of electricity markets poses a real problem with respect to consumers' interests. In such cases, consumers face a significant price rise compared with consumers in countries where low-cost capacities are lacking. This paper analyses this problem both in the short and long term, focusing on a market dominated by nuclear and hydro production. When there are too many restrictions on new capacity developments in low-cost technologies, market integration will lead to surplus redistribution without any production reallocation. This really makes it legitimate to contemplate redistributive compensations towards local consumers in countries which benefited from low variable cost generators at the moment of liberalisation. This paper examines two alternative ways of rent reallocation, one by income with a windfall tax on nuclear producers and the allocation of this revenue to energy efficiency policy funds, and another by price by giving drawing rights on the existing nuclear generators' production to small commercial and domestic consumers, at a level equivalent to the one necessary to maintain regulated prices.

  13. Integrated HI emission in galaxy groups and clusters

    Science.gov (United States)

    Ai, Mei; Zhu, Ming; Fu, Jian

    2017-09-01

    The integrated HI emission from hierarchical structures such as groups and clusters of galaxies can be detected by FAST at intermediate redshifts. Here we propose to use FAST to study the evolution of the global HI content of clusters and groups over cosmic time by measuring their integrated HI emissions. We use the Virgo Cluster as an example to estimate the detection limit of FAST, and have estimated the integration time to detect a Virgo type cluster at different redshifts (from z = 0.1 to z = 1.5).We have also employed a semi-analytic model (SAM) to simulate the evolution of HI contents in galaxy clusters. Our simulations suggest that the HI mass of a Virgo-like cluster could be 2-3 times higher and the physical size could be more than 50% smaller when redshift increases from z = 0.3 to z = 1. Thus the integration time could be reduced significantly and gas rich clusters at intermediate redshifts can be detected by FAST in less than 2 hours of integration time. For the local Universe, we have also used SAM simulations to create mock catalogs of clusters to predict the outcomes from FAST all sky surveys. Comparing with the optically selected catalogs derived by cross matching the galaxy catalogs from the SDSS survey and the ALFALFA survey, we find that the HI mass distribution of the mock catalog with 20 s of integration time agrees well with that of observations. However, the mock catalog with 120 s of integration time predicts many more groups and clusters that contain a population of low mass HI galaxies not detected by the ALFALFA survey. A future deep HI blind sky survey with FAST would be able to test such prediction and set constraints on the numerical simulation models. The observational strategy and sample selections for future FAST observations of galaxy clusters at high redshifts are also discussed.

  14. Group-Integrated Reality Therapy in a Wilderness Camp.

    Science.gov (United States)

    Clagett, Arthur F.

    1992-01-01

    Abridges Glasser's (1975) theory of United States as identity society to explicate causative characteristics of "identity achievers" versus "failures" in U.S. society. Discusses Reality Therapy and therapeutic treatment programs developed by Hope Center Wilderness Camp. Presents evidence to suggest that group-integrated reality…

  15. Growth of fundamental group for Finsler manifolds with integral Ricci ...

    Indian Academy of Sciences (India)

    In this paper, an upper bound on the growth of fundamental group for a class of Finsler manifolds with integral Ricci curvature bound is given. The result generalizes the corresponding results with pointwise Ricci curvature in the literature. The maximal and minimal volume forms (see §2 for the definition) are used throughout ...

  16. Electric-drive tractability indicator integrated in hybrid electric vehicle tachometer

    Science.gov (United States)

    Tamai, Goro; Zhou, Jing; Weslati, Feisel

    2014-09-02

    An indicator, system and method of indicating electric drive usability in a hybrid electric vehicle. A tachometer is used that includes a display having an all-electric drive portion and a hybrid drive portion. The all-electric drive portion and the hybrid drive portion share a first boundary which indicates a minimum electric drive usability and a beginning of hybrid drive operation of the vehicle. The indicated level of electric drive usability is derived from at least one of a percent battery discharge, a percent maximum torque provided by the electric drive, and a percent electric drive to hybrid drive operating cost for the hybrid electric vehicle.

  17. Load Forecasting in Electric Utility Integrated Resource Planning

    Energy Technology Data Exchange (ETDEWEB)

    Carvallo, Juan Pablo [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Larsen, Peter H. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Sanstad, Alan H [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Goldman, Charles A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2017-07-19

    Integrated resource planning (IRP) is a process used by many vertically-integrated U.S. electric utilities to determine least-cost/risk supply and demand-side resources that meet government policy objectives and future obligations to customers and, in many cases, shareholders. Forecasts of energy and peak demand are a critical component of the IRP process. There have been few, if any, quantitative studies of IRP long-run (planning horizons of two decades) load forecast performance and its relationship to resource planning and actual procurement decisions. In this paper, we evaluate load forecasting methods, assumptions, and outcomes for 12 Western U.S. utilities by examining and comparing plans filed in the early 2000s against recent plans, up to year 2014. We find a convergence in the methods and data sources used. We also find that forecasts in more recent IRPs generally took account of new information, but that there continued to be a systematic over-estimation of load growth rates during the period studied. We compare planned and procured resource expansion against customer load and year-to-year load growth rates, but do not find a direct relationship. Load sensitivities performed in resource plans do not appear to be related to later procurement strategies even in the presence of large forecast errors. These findings suggest that resource procurement decisions may be driven by other factors than customer load growth. Our results have important implications for the integrated resource planning process, namely that load forecast accuracy may not be as important for resource procurement as is generally believed, that load forecast sensitivities could be used to improve the procurement process, and that management of load uncertainty should be prioritized over more complex forecasting techniques.

  18. Enhanced Electrical Integration of Engineered Human Myocardium via Intramyocardial versus Epicardial Delivery in Infarcted Rat Hearts.

    Directory of Open Access Journals (Sweden)

    Kaytlyn A Gerbin

    Full Text Available Cardiac tissue engineering is a promising approach to provide large-scale tissues for transplantation to regenerate the heart after ischemic injury, however, integration with the host myocardium will be required to achieve electromechanical benefits. To test the ability of engineered heart tissues to electrically integrate with the host, 10 million human embryonic stem cell (hESC-derived cardiomyocytes were used to form either scaffold-free tissue patches implanted on the epicardium or micro-tissue particles (~1000 cells/particle delivered by intramyocardial injection into the left ventricular wall of the ischemia/reperfusion injured athymic rat heart. Results were compared to intramyocardial injection of 10 million dispersed hESC-cardiomyocytes. Graft size was not significantly different between treatment groups and correlated inversely with infarct size. After implantation on the epicardial surface, hESC-cardiac tissue patches were electromechanically active, but they beat slowly and were not electrically coupled to the host at 4 weeks based on ex vivo fluorescent imaging of their graft-autonomous GCaMP3 calcium reporter. Histologically, scar tissue physically separated the patch graft and host myocardium. In contrast, following intramyocardial injection of micro-tissue particles and suspended cardiomyocytes, 100% of the grafts detected by fluorescent GCaMP3 imaging were electrically coupled to the host heart at spontaneous rate and could follow host pacing up to a maximum of 300-390 beats per minute (5-6.5 Hz. Gap junctions between intramyocardial graft and host tissue were identified histologically. The extensive coupling and rapid response rate of the human myocardial grafts after intramyocardial delivery suggest electrophysiological adaptation of hESC-derived cardiomyocytes to the rat heart's pacemaking activity. These data support the use of the rat model for studying electromechanical integration of human cardiomyocytes, and they

  19. Social Group Dynamics and Patterns of Latin American Integration Processes

    Directory of Open Access Journals (Sweden)

    Sébastien Dubé

    2017-04-01

    Full Text Available This article proposes to incorporate social psychology elements with mainstream political science and international relations theories to help understand the contradictions related to the integration processes in Latin America. Through a theoretical analysis, it contributes to the challenge proposed by Dabène (2009 to explain the “resilience” of the Latin American regional integration process in spite of its “instability and crises.” Our main proposition calls for considering Latin America as a community and its regional organizations as “social groups.” In conclusion, three phenomena from the field of social psychology and particularly social group dynamics shed light on these contradictory patterns: the value of the group and the emotional bond, groupthink, and cognitive dissonance.

  20. The group discussion effect: integrative processes and suggestions for implementation.

    Science.gov (United States)

    Meleady, Rose; Hopthrow, Tim; Crisp, Richard J

    2013-02-01

    One of the most consistent findings in experimental social dilemmas research is the positive effect group discussion has on cooperative behavior. At a time when cooperation and consensus is critical to tackle global problems, ranging from debt to deforestation, understanding the dynamics of group discussion is a pressing need. Unfortunately, research investigating the underlying processes and implementation of the effect has been inconclusive. The authors present a critical review of existing explanations and integrate these perspectives into a single process model of group discussion, providing a more complete theoretical picture of how interrelated factors combine to facilitate discussion-induced cooperation. On the basis of this theoretical analysis, they consider complimentary approaches to the indirect and feasible implementation of group discussion. They argue that such strategies may overcome the barriers to direct discussion observed across a range of groups and organizations.

  1. Working group 3: upstream pipelines: inspection, corrosion and integrity management

    Energy Technology Data Exchange (ETDEWEB)

    Paez, Jorge; Stephenson, Mark [Talisman Energy, (Canada)

    2011-07-01

    The third topic investigated the latest challenges to upstream pipeline operation and the areas for improvement in upstream integrity in the pipeline industry. The first session of talks reported on the pipeline incident analysis conducted by the CAPP on several companies from 2006 to 2010 in order to identify best management practises and to drive improvement in pipeline integrity management. Reviews of primary failure statistics and failure frequency were conducted with respect to the various materials of pipes. A summary of changes to the CSA standard related to non-metallic pipes was also presented to complete this background overview of the upstream industry. The second session provided more information about these non-metallic pipes, focusing on construction and quality issues with large diameter HDPE pipelines. The third session discussed the ERW pipeline in relation to upstream industry. An integrity management panel discussion was carried out to close this third working group.

  2. Efficient electricity storage with a battolyser, an integrated Ni-Fe battery and electrolyser

    NARCIS (Netherlands)

    Mulder, F.M.; Weninger, B.; Middelkoop, J.; Ooms, F.G.B.; Schreuders, H.

    2017-01-01

    Grid scale electricity storage on daily and seasonal time scales is required to accommodate increasing amounts of renewable electricity from wind and solar power. We have developed for the first time an integrated battery-electrolyser ('battolyser') that efficiently stores electricity as a

  3. Integrated Cost Allocation of Transmission Usage under Electricity Markets

    Directory of Open Access Journals (Sweden)

    Hermagasantos Zein

    2012-08-01

    Full Text Available Cost allocation of transmission usage on the power networks is an important issue especially in the modern electricity market mechanism. In this context, all costs that have been embedded in the transmission, embedded cost, should be covered by the transmission users. This paper follows general methods, where generators are fullyresponsible to cover the embedded cost. It proposes a method to determine the cost allocation of transmission usage based on decomposition through the superposition techinique to determine power flow contributions from an integrated base case of the results of the power flow calculations of all transactions, bilateral and nonbilateral contracts. Mathematically, the applied formulations are illustrated clearly in this paper. The proposed method has been tested with 5-bus system and the results are much different compared to a few of the published methods. This is shown by the test results on the 5 bus system. The published methods produce total power flow contributions in each line is greater than the actual. And they earn total revenues approximately 11.6% greater than the embedded cost. While on the proposed method, the power flow contribu tions are equal to the actual and the revenues are equal to the embedded cost. It shows also that the proposed method gives results as expected.

  4. Systems and methods for an integrated electrical sub-system powered by wind energy

    Science.gov (United States)

    Liu, Yan [Ballston Lake, NY; Garces, Luis Jose [Niskayuna, NY

    2008-06-24

    Various embodiments relate to systems and methods related to an integrated electrically-powered sub-system and wind power system including a wind power source, an electrically-powered sub-system coupled to and at least partially powered by the wind power source, the electrically-powered sub-system being coupled to the wind power source through power converters, and a supervisory controller coupled to the wind power source and the electrically-powered sub-system to monitor and manage the integrated electrically-powered sub-system and wind power system.

  5. Forecasting day-ahead electricity prices in Europe : The importance of considering market integration

    NARCIS (Netherlands)

    Lago Garcia, J.; De Ridder, Fjo; Vrancx, Peter; De Schutter, B.H.K.

    2018-01-01

    Motivated by the increasing integration among electricity markets, in this paper we propose two different methods to incorporate market integration in electricity price forecasting and to improve the predictive performance. First, we propose a deep neural network that considers features from

  6. A novel side electrode configuration integrated in fused silica microsystems for synchronous optical and electrical spectroscopy

    NARCIS (Netherlands)

    Sukas, S.; Schreuder, F.; de Wagenaar, B.; Swennenhuis, Joost Franciscus; van den Berg, Albert; Terstappen, Leonardus Wendelinus Mathias Marie; le Gac, Severine

    2014-01-01

    We present a novel electrode configuration consisting of coplanar side electrode pairs integrated at the half height of the microchannels for the creation of a homogeneous electric field distribution as well as for synchronous optical and electrical measurements. For the integration of such

  7. Integrating CERN e-groups into TWiki access control.

    CERN Document Server

    Jones, PL; Hoymr, N; CERN. Geneva. IT Department

    2010-01-01

    Wikis allow for easy collaborative editing of documents on the web for users located in different buildings, cities or even countries. TWiki culture lends to open free form editing and most pages are world readable and editable by CERN authenticated users, however access control is possible and is used to protect sensitive documents. This note discusses the integration of E-groups for authorisation purposes at CERN.

  8. Electric rays are a moderately diverse group of batoids that occur ...

    African Journals Online (AJOL)

    denise

    Electric rays are a moderately diverse group of batoids that occur circumglobally in most warm to subtem- perate marine waters. They are noteworthy for having electrogenic or torporific qualities, which have been known since antiquity. Electric rays are morphologi- cally very distinctive and easily separated from other.

  9. Electric explosion of fine wires: Three groups of materials

    Energy Technology Data Exchange (ETDEWEB)

    Romanova, V. M., E-mail: vmr@inbox.ru; Ivanenkov, G. V.; Mingaleev, A. R.; Ter-Oganesyan, A. E.; Shelkovenko, T. A.; Pikuz, S. A. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

    2015-08-15

    Experimental data demonstrating differences in the structures of channels formed during nanosecond discharges through fine wires made of different materials are presented. In addition to the traditional two classes of metals and alloys (the copper and tungsten groups), a new class is proposed to which materials of the nickel type belong. Their properties combine the characteristic properties of the two traditional groups, due to which they occupy an intermediate position between the latter. This manifests itself in the unstable character of explosion, the type of which can change drastically when changing the ambient medium or other conditions. Most of the reported results were obtained at a small setup with maximum values of the current and voltage of 10 kA and 20 kV, respectively, the current rise time being about 300 ns. An attempt is made to construct a scenario of the development of a nanosecond explosion that would make it possible to qualitatively describe the formation of the discharge channel structure. The analysis is based on the recent experimental results indicating that the cores formed in the course of the discharge have a tubular structure.

  10. Integrated Vehicle Thermal Management - Combining Fluid Loops in Electric Drive Vehicles (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Rugh, J. P.

    2013-07-01

    Plug-in hybrid electric vehicles and electric vehicles have increased vehicle thermal management complexity, using separate coolant loop for advanced power electronics and electric motors. Additional thermal components result in higher costs. Multiple cooling loops lead to reduced range due to increased weight. Energy is required to meet thermal requirements. This presentation for the 2013 Annual Merit Review discusses integrated vehicle thermal management by combining fluid loops in electric drive vehicles.

  11. Integrating The Non-Electrical Worker Into The Electrical Safety Program

    Energy Technology Data Exchange (ETDEWEB)

    Mills, T. David; McAlhaney, John H.

    2012-08-17

    The intent of this paper is to demonstrate an electrical safety program that incorporates all workers into the program, not just the electrical workers. It is largely in response to a paper presented at the 2012 ESW by Lanny Floyd entitled "Facilitating Application of Electrical Safety Best Practices to "Other" Workers" which requested all attendees to review their electrical safety program to assure that non-electrical workers were protected as well as electrical workers. The referenced paper indicated that roughly 50% of electrical incidents involve workers whose primary function is not electrical in nature. It also encouraged all to "address electrical safety for all workers and not just workers whose job responsibilities involve working on or near energized electrical circuits." In this paper, a program which includes specific briefings to non-electrical workers as well as to workers who may need to perform their normal activities in proximity to energized electrical conductors is presented. The program uses a targeted approach to specific areas such as welding, excavating, rigging, chart reading, switching, cord and plug equipment and several other general areas to point out hazards that may exist and how to avoid them. NFPA 70E-2004 was incorporated into the program several years ago and with it the need to include the "other" workers became apparent. The site experience over the years supports the assertion that about half of the electrical incidents involve non-electrical workers and this prompted us to develop specific briefings to enhance the knowledge of the non-electrical worker regarding safe electrical practices. The promotion of "May is Electrical Safety Month" and the development of informative presentations which are delivered to the general site population as well as electrical workers have greatly improved the hazards awareness status of the general worker on site.

  12. Electric vehicle station equipment for grid-integrated vehicles

    Science.gov (United States)

    Kempton, Willett; Kiamilev, Fouad; McGee, Rodney; Waite, Nick

    2017-09-05

    Methods, systems, and apparatus transferring power between the grid and an electric vehicle are disclosed. The apparatus may include at least one vehicle communication port for interfacing with electric vehicle equipment (EVE) and a processor coupled to the at least one vehicle communication port to establish communication with the EVE, receive EVE attributes from the EVE, and transmit electric vehicle station equipment (EVSE) attributes to the EVE. Power may be transferred between the grid and the electric vehicle by maintaining EVSE attributes, establishing communication with the EVE, and transmitting the EVSE maintained attributes to the EVE.

  13. Towards a non-abelian electric-magnetic symmetry: the skeleton group

    NARCIS (Netherlands)

    Kampmeijer, L.; Bais, F.A.; Schroers, B.J.; Slingerland, J.K.

    2010-01-01

    We propose an electric-magnetic symmetry group in non-abelian gauge theory, which we call the skeleton group. We work in the context of non-abelian unbroken gauge symmetry, and provide evidence for our proposal by relating the representation theory of the skeleton group to the labelling and fusion

  14. Multiloop integral system test (MIST): Final report, Inter-group comparisons

    Energy Technology Data Exchange (ETDEWEB)

    Gloudemans, J.R.

    1989-07-01

    The multiloop integral system test (MIST) was part of a multiphase program started in 1983 to address small-break loss-of-coolant accidents (SBLOCAs) specific to Babcock and Wilcox-designed plants. MIST was sponsored by the US Nuclear Regulatory Commission, the Babcock and Wilcox Owners Group, the Electric Power Research Institute, and Babcock and Wilcox. The unique features of the Babcock and Wilcox design, specifically the hot leg U-bends and steam generators, prevented the use of existing integral system data or existing integral system facilities to address the thermal-hydraulic SBLOCA questions. MIST and two other supporting facilities were specifically designed and constructed for this program, and an existing facility -- the once-through integral system (OTIS) -- was also used. Data from MIST and the other facilities will be used to benchmark the adequacy of system codes, such as RELAP5 and TRAC, for predicting abnormal plant transients. The individual tests are described in detail in Volumes 2 through 8 and Volume 11, and are summarized in Volume 1. Inter-group comparisons are addressed in this document, Volume 9. These comparisons are grouped as follows: mapping versus SBLOCA transients, SBLOCA, pump effects, and the effects of noncondensible gases. Appendix A provides an index and description of the microfiched plots for each test, which are enclosed with the corresponding Volumes 2 through 8. 147 figs., 5 tabs.

  15. Electric vehicle equipment for grid-integrated vehicles

    Science.gov (United States)

    Kempton, Willett

    2013-08-13

    Methods, systems, and apparatus for interfacing an electric vehicle with an electric power grid are disclosed. An exemplary apparatus may include a station communication port for interfacing with electric vehicle station equipment (EVSE), a vehicle communication port for interfacing with a vehicle management system (VMS), and a processor coupled to the station communication port and the vehicle communication port to establish communication with the EVSE via the station communication port, receive EVSE attributes from the EVSE, and issue commands to the VMS to manage power flow between the electric vehicle and the EVSE based on the EVSE attributes. An electric vehicle may interface with the grid by establishing communication with the EVSE, receiving the EVSE attributes, and managing power flow between the EVE and the grid based on the EVSE attributes.

  16. Addition Theorems, Formal Group Laws and Integrable Systems

    Science.gov (United States)

    Buchstaber, V. M.; Bunkova, E. Yu.

    2010-11-01

    We consider elliptic curves, given in the Weierstrass parametrization by the equation y2+μ1xy+μ3y = x3+μ2x2+μ4x+μ6. In Tate coordinates t = -x/y and s = -1/y, the geometric addition laws on this curves correspond to the general elliptic formal group law over the ring Z[μ1,μ2,μ3,μ4,μ6]. This formal group law is well-known in the number theory and cryptography. One can find this law in recent works on the theory of elliptic functions and algebraic topology. In the focus of our interest are questions, important from the point of view of Hirzebruch genera and the theory of integrable systems (see references).

  17. International Piping Integrity Research Group (IPIRG) Program. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Wilkowski, G.; Schmidt, R.; Scott, P. [and others

    1997-06-01

    This is the final report of the International Piping Integrity Research Group (IPIRG) Program. The IPIRG Program was an international group program managed by the U.S. Nuclear Regulatory Commission and funded by a consortium of organizations from nine nations: Canada, France, Italy, Japan, Sweden, Switzerland, Taiwan, the United Kingdom, and the United States. The program objective was to develop data needed to verify engineering methods for assessing the integrity of circumferentially-cracked nuclear power plant piping. The primary focus was an experimental task that investigated the behavior of circumferentially flawed piping systems subjected to high-rate loadings typical of seismic events. To accomplish these objectives a pipe system fabricated as an expansion loop with over 30 meters of 16-inch diameter pipe and five long radius elbows was constructed. Five dynamic, cyclic, flawed piping experiments were conducted using this facility. This report: (1) provides background information on leak-before-break and flaw evaluation procedures for piping, (2) summarizes technical results of the program, (3) gives a relatively detailed assessment of the results from the pipe fracture experiments and complementary analyses, and (4) summarizes advances in the state-of-the-art of pipe fracture technology resulting from the IPIRG program.

  18. AN INTEGRATIVE GROUP PSYCHOTHERAPY PROGRAM FOR CHILDREN. THE WIZARDING SCHOOL

    Directory of Open Access Journals (Sweden)

    Oana Maria Popescu

    2012-02-01

    Full Text Available One of the most important tendencies in child psychotherapy is the integration of various psychotherapeutic approaches and technical interventions belonging to different orientations. Based on the Harry Potter stories, the „Wizarding School” structured group therapy program is a 12-step integratively oriented program applicable in personal development, individual and group therapy for children aged 6 to 13 (at present being adapted for adult psychotherapy. The program takes place within a fairy tale, being therefore a type of informal hypnotic trance. The interventions are drawn from the lessons described in Harry Potter’s story at Hogwarts, based on the fundamental principles of child psychotherapy and including elements of play therapy, art therapy, hypnotherapy, cognitive- behavioural therapy, transactional analysis, supportive therapy, family therapy and person centred therapy. From a theoretical point of view the program is based on elements from a number of psychotherapeutic approaches, the main concept being that we need to create a therapeutic myth that is acceptable to a child. The program is not suitable for children with structural deficits, who have difficulties in making the difference between fantasy and reality.

  19. Integrated medical informatics with small group teaching in medical education.

    Science.gov (United States)

    Chen, H S; Guo, F R; Liu, C T; Lee, Y J; Chen, J H; Lin, C C; Hou, S M; Hsieh, B S

    1998-06-01

    National Taiwan University College of Medicine (NTUCM) introduced small groups of teaching and basic-clinical integrated courses for medical students in 1992. By using computer network and multimedia techniques, this study tried to overcome barriers to learning in small group teaching. The Department of Medical Informatics of NTUCM established campus networking and computer classrooms and provided Internet and intranet network services including mail, netnews, bulletin board systems (BBS), world wide web (WWW), gopher, ftp and local file servers. To implement an interactive learning environment, the authors first tried mail lists, newsgroups and BBS. Next an integrated learning system prototype on the WWW was developed to provide functions including online syllabus, discussion boards simulated to BBS, online talk, interactive case studies, virtual classroom with video on demand (VOD) and Internet medical resources. The results showed that after the medical students completed the required course of medical informatics and had good network access using a network to communicate with each other became a daily practice. In the future, the system will extend to the tutoring of clinical practice and continuing medical education. The authors expect a national medical education network and more international cooperation and exchange.

  20. Caretta: Integrating Personal and Shared Workspaces to Support Group Activities

    Science.gov (United States)

    Hosoi, Kazuhiro; Sugimoto, Masanori; Hashizume, Hiromichi

    In this paper, a system called Caretta that integrates personal and shared workspaces to support face-to-face collaboration is described. We use PDAs for individual users' personal workspaces that enable them to reflect on their own idea. A shared workspace has been implemented by using a multiple-input sensing board, which allows a group of users to simultaneously manipulate physical objects. In order to raise the level of awareness among users, we have used augmented reality technologies and created an immersive environment for the users' shared workspace. Users of Caretta can discuss and negotiate with each other in the shared workspace, while they individually examine their ideas in their own personal workspaces. Therefore, Caretta allows users to participate in group activities interchangeably and seamlessly by using both these workspaces. Caretta can be used for several types of group activities. In this paper, it is used for supporting a group of users in urban planning tasks by allowing the users to actually construct a town on the shared space and evaluate the town through computer simulations. User studies to evaluate Caretta were conducted. Usage logs of Caretta, video analyses, and comments from users proved that each user could utilize personal and shared space interchangeably at their own pace and without being hindered by other users.

  1. Integrated photovoltaics in nickel cadmium battery electric vehicles.

    Science.gov (United States)

    2008-12-01

    This research report presents Connecticut Department of Transportations (ConnDOTs) : evaluation of preproduction prototype nickel-cadmium (NiCd) battery-powered electric : vehicles (BEVs) as an alternative-fuel (alt-fuel) option for local trips...

  2. A role of electrical inhibition in sensorimotor integration.

    Science.gov (United States)

    Weiss, Shennan A; Preuss, Thomas; Faber, Donald S

    2008-11-18

    Although it is accepted that extracellular fields generated by neuronal activity can influence the excitability of neighboring cells, whether this form of neurotransmission has a functional role remains open. In vivo field effects occur in the teleost Mauthner (M)-cell system, where a combination of structural features support the concept of inhibitory electrical synapses. A single spike in one M-cell evoked within as little as 2.2 ms of the onset of an abrupt sound, simulating a predatory strike, initiates a startle-escape behavior [Zottoli SJ (1977) J Exp Biol 66:243-254]. We show that such sounds produce synchronized action potentials in as many as 20 or more interneurons that mediate feed-forward electrical inhibition of the M-cell. The resulting action currents produce an electrical inhibition that coincides with the electrotonic excitatory drive to the M-cell; the amplitude of the peak of the inhibition is approximately 40% of that of the excitation. When electrical inhibition is neutralized with an extracellular cathodal current pulse, subthreshold auditory stimuli are converted into ones that produce an M-spike. Because the timing of electrical inhibition is often the same as the latency of M-cell firing in freely swimming fish, we conclude that electrical inhibition participates in regulating the threshold of the acoustic startle-escape behavior. Therefore, a field effect is likely to be essential to the normal functioning of the neural network.

  3. Griffiss AFB integrated resource assessment. Volume 2, Electric baseline detail

    Energy Technology Data Exchange (ETDEWEB)

    Dixon, D.R.; Armstrong, P.R.; Keller, J.M.

    1993-02-01

    The US Air Force Air Combat Command has tasked the Pacific Northwest Laboratory (PNL) as the lead laboratory supporting the US Department of Energy (DOE) Federal Energy Management Program`s (FEMP) mission to identify, evaluate, and assist in acquiring all cost-effective energy projects at Griffiss Air Force Base (AFB). This is a model program PNL is designing for federal customers served by the Niagara Mohawk Power Company (Niagara Mohawk). It will (1) identify and evaluate all electric cost-effective energy projects; (2) develop a schedule at each installation for project acquisition considering project type, size, timing, and capital requirements, as well as energy and dollar savings; and (3) secure 100% of the financing required to implement electric energy efficiency projects from Niagara Mohawk and have Niagara Mohawk procure the necessary contractors to perform detailed audits and install the technologies. This report documents the assessment of baseline energy use at one of Niagara Mohawk`s primary federal facilities, Griffiss AFB, an Air Combat Command facility located near Rome, New York. It is a companion report to Volume 1, the Executive Summary, and Volume 3, the Electric Resource Assessment. The analysis examines the characteristics of electric, gas, oil, propane, coal, and purchased thermal capacity use for fiscal year (FY) 1990. The results include energy-use intensities for the facilities at Griffiss AFB by building type and electric energy end use. A complete electric energy consumption reconciliation is presented that accounts for the distribution of all major electric energy uses and losses among buildings, utilities, and central systems.

  4. Dirac relation and renormalization group equations for electric and magnetic fine structure constants

    CERN Document Server

    Laperashvili, L V

    1999-01-01

    The quantum field theory describing electric and magnetic charges and revealing a dual symmetry was developed in the Zwanziger formalism. The renormalization group (RG) equations for both fine structure constants - electric $\\alpha $ and magnetic $\\tilde \\alpha $ - were obtained. It was shown that the Dirac relation is valid for the renormalized $\\alpha $ and $\\tilde perturbatively only in the small region: $0.25 \\stackrel{<}{\\sim} \\alpha, relation: $\\alpha {\\tilde \\alpha} = \\frac 14 $.

  5. Integrating High Levels of Variable Renewable Energy into Electric Power Systems

    Energy Technology Data Exchange (ETDEWEB)

    Kroposki, Benjamin D. [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-08-01

    As more variable renewable energy is integrated into electric power systems, there are a range of challenges and solutions to accommodating very high penetration levels. This presentation highlights some of the recent research in this area.

  6. 75 FR 12123 - Federal Motor Vehicle Safety Standards; Side Impact Protection; Fuel System Integrity; Electric...

    Science.gov (United States)

    2010-03-15

    ... National Highway Traffic Safety Administration 49 CFR Part 571 RIN 2127-AK48 Federal Motor Vehicle Safety Standards; Side Impact Protection; Fuel System Integrity; Electric-Powered Vehicles: Electrolyte Spillage and Electrical Shock Protection AGENCY: National Highway Traffic Safety Administration (NHTSA...

  7. Energy Systems Integration: NREL + SolarCity and the Hawaiian Electric Companies (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2015-02-01

    This fact sheet describes the collaboration between NREL, SolarCity, and the Hawaiian Electric Companies at the Energy Systems Integration Facility (ESIF) to address the safety, reliability, and stability challenges of interconnecting high penetrations of distributed photovoltaics with the electric power system.

  8. Wind power integration studies using a multi-stage stochastic electricity system model

    DEFF Research Database (Denmark)

    Meibom, Peter; Barth, R.; Brand, H.

    2007-01-01

    A large share of integrated wind power causes technical and financial impacts on the operation of the existing electricity system due to the fluctuating behaviour and unpredictability of wind power. The presented stochastic electricity market model optimises the unit commitment considering four...

  9. Advanced hybrid and electric vehicles system optimization and vehicle integration

    CERN Document Server

    2016-01-01

    This contributed volume contains the results of the research program “Agreement for Hybrid and Electric Vehicles”, funded by the International Energy Agency. The topical focus lies on technology options for the system optimization of hybrid and electric vehicle components and drive train configurations which enhance the energy efficiency of the vehicle. The approach to the topic is genuinely interdisciplinary, covering insights from fields. The target audience primarily comprises researchers and industry experts in the field of automotive engineering, but the book may also be beneficial for graduate students.

  10. Market integration of wind power in electricity system balancing

    DEFF Research Database (Denmark)

    Sorknæs, Peter; Andersen, Anders N.; Tang, Jens

    2013-01-01

    In most countries markets for electricity are divided into wholesale markets on which electricity is traded before the operation hour, and real-time balancing markets to handle the deviations from the wholesale trading. So far, wind power has been sold only on the wholesale market and has been...... known to increase the need for balancing. This article analyses whether wind turbines in the future should participate in the balancing markets and thereby play a proactive role. The analysis is based on a real-life test of proactive participation of a wind farm in West Denmark. It is found...

  11. Potential Analysis of Electric Vehicle (EV) Grid Integration

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Nielsen, Arne Hejde; Østergaard, Jacob

    2011-01-01

    Electric vehicles (EVs) have been considered as distributed energy resources (DER) to handle the fluctuation from renewable energy resources (RES), especially the wind power. The intelligent management of EV charging and discharging can achieve the goal of providing up and down regulating power...

  12. Integration of Solar Photovoltaics and Electric Vehicles in Residential Grids

    DEFF Research Database (Denmark)

    Pillai, Jayakrishnan Radhakrishna; Huang, Shaojun; Bak-Jensen, Birgitte

    2013-01-01

    In the last few years, there is an increased penetration of solar photovoltaic (SPV) units in low voltage (LV) distribution grids. Also electric vehicles (EVs) are introduced to these LV networks. This has caused the distribution networks to be more active and complex as these local generation...

  13. Report of the Task Group on Electrical Safety of Department of Energy facilities

    Energy Technology Data Exchange (ETDEWEB)

    None

    1993-01-01

    The Task Group on Electrical Safety at DOE Facilities (Task Group), which was formally established on October 27, 1992. The Task Group reviewed the electrical safety-related occurrence history of, and conducted field visits to, seven DOE sites chosen to represent a cross section of the Department`s electrical safety activities. The purpose of the field visits was to review, firsthand, electrical safety programs and practices and to gain greater insight to the root causes and corrective actions taken for recently reported incidents. The electrical safety environment of the DOE complex is extremely varied, ranging from common office and industrial electrical systems to large high-voltage power distribution systems (commercial transmission line systems). It includes high-voltage/high-power systems associated with research programs such as linear accelerators and experimental fusion confinement systems. Age, condition, and magnitude of the facilities also varies, with facilities dating from the Manhattan Project, during World War II, to the most modem complexes. The complex is populated by Federal (DOE and other agencies) and contractor employees engaged in a wide variety of occupations and activities in office, research and development, and industrial settings. The sites visited included all of these variations and are considered by the Task Group to offer a valid representation of the Department`s electrical safety issues. The sites visited were Oak Ridge National Laboratory (ORNL), Stanford Linear Accelerator Center (SLAC), Idaho National Engineering Laboratory (INEL), Nevada Test Site (NTS), Savannah River Site (SRS), Hanford Reservation (Hanford), and the Uranium Mill Tailings Remedial Action Project (UMTRA) located at Grand Junction, Colorado.

  14. Merged Group Tractography Evaluation with Selective Automated Group Integrated Tractography (SAGIT

    Directory of Open Access Journals (Sweden)

    David Qixiang Chen

    2016-10-01

    Full Text Available Introduction: Tractography analysis in group-based studies across large populations is difficult to manage and assess. We propose Selective Automated Group Integrated Tractography (SAGIT, an automated group tractography software platform that incorporates proven dMRI practices, in order for group-wise dMRI to be more accessible to researchers. We use a merged tractography approach that permits evaluation of tractography datasets at the group level. We also introduce an image-based score (Normalized Overlapping Score (NOS that can quantify the quality of the group tractography results. We deploy SAGIT to evaluate deterministic and probabilistic constrained spherical deconvolution (CSTdet, CSTprob, extended streamline tractography (XST, and diffusion tensor tractography (DTT in their ability to delineate different neuroanatomy, as well as validating NOS across these different brain regions. Methods: MR sequences were acquired from 42 healthy adults. Anatomical and group registrations were performed using ANTs. Cortical segmentation was performed using FreeSurfer. Four tractography algorithms were used to delineate 6 sets of neuroanatomy: fornix, facial/vestibular-cochlear cranial nerve complex, vagus nerve, rubral-cerebellar decussation, optic radiation, and auditory radiation. The tracts were generated both with and without ROI filters. The generated visual reports were then evaluated by 5 neuroscientists. Results: At a group level, merged tractography demonstrated that different methods have different fiber distribution characteristics. CSTprob is prone to false-positives, and thereby suitable in anatomy with strong priors. CSTdet and XST are more conservative, but have more trouble resolving hemispherical decussation and distant crossing projections. DTT consistently shows the worst reproducibility across the anatomies. Linear regression of rater scores against NOS shows significant (p0.05 for unfiltered tractography.Conclusions: The

  15. Modelling the potential for wind energy integration on China’s coal-heavy electricity grid

    Science.gov (United States)

    Davidson, Michael R.; Zhang, Da; Xiong, Weiming; Zhang, Xiliang; Karplus, Valerie J.

    2016-07-01

    Expanding the use of wind energy for electricity generation forms an integral part of China’s efforts to address degraded air quality and climate change. However, the integration of wind energy into China’s coal-heavy electricity system presents significant challenges owing to wind’s variability and the grid’s system-wide inflexibilities. Here we develop a model to predict how much wind energy can be generated and integrated into China’s electricity mix, and estimate a potential production of 2.6 petawatt-hours (PWh) per year in 2030. Although this represents 26% of total projected electricity demand, it is only 10% of the total estimated physical potential of wind resources in the country. Increasing the operational flexibility of China’s coal fleet would allow wind to deliver nearly three-quarters of China’s target of producing 20% of primary energy from non-fossil sources by 2030.

  16. High-speed Integrated Circuits for electrical/Optical Interfaces

    DEFF Research Database (Denmark)

    Jespersen, Christoffer Felix

    2008-01-01

    of LC-oscillators with oscillator criteria, phase noise and different topologies are given as background. The theory of PLL circuits is also presented. Guidelines and suggestions for static divider, VCO, LA and CDR design are presented using static divider, 50-100 GHz VCO and 100Gb/s LA+CDR circuits......This thesis is a continuation of the effort to increase the bandwidth of communicationnetworks. The thesis presents the results of the design of several high-speed electrical ircuits for an electrical/optical interface. These circuits have been a contribution to the ESTA project in collaboration...... circuits at the receiver interface, though VCOs are also found in the transmitter where a multitude of independent sources have to be mutually synchronized before multiplexing. The circuits are based on an InP DHBT process (VIP-2) supplied by Vitesse and made publicly available as MPW. The VIP-2 process...

  17. Passively Damped Laminated Piezoelectric Shell Structures with Integrated Electric Networks

    Science.gov (United States)

    Saravanos, Dimitris A.

    1999-01-01

    Multi-field mechanics are presented for curvilinear piezoelectric laminates interfaced with distributed passive electric components. The equations of motion for laminated piezoelectric shell structures with embedded passive electric networks are directly formulated and solved using a finite element methodology. The modal damping and frequencies of the piezoelectric shell are calculated from the poles of the system. Experimental and numerical results are presented for the modal damping and frequency of composite beams with a resistively shunted piezoceramic patch. The modal damping and frequency of plates, cylindrical shells and cylindrical composite blades with piezoelectric-resistor layers are predicted. Both analytical and experimental studies illustrate a unique dependence of modal damping and frequencies on the shunting resistance and show the effect of structural shape and curvature on piezoelectric damping.

  18. Integral pentavalent Cayley graphs on abelian or dihedral groups

    Indian Academy of Sciences (India)

    MOHSEN GHASEMI

    Introduction. We say that a graph is integral if all the eigenvalues of its adjacency matrix are inte- gers. The notion of integral graphs was first introduced by Harary and Schwenk [8]. Bussemaker and Cvetkovic [5] proved that there are exactly 13 connected cubic integral graphs. The same result was indepedently proved by ...

  19. Dynamic Assessment of COTS Converters-based DC Integrated Power Systems in Electric Ships

    DEFF Research Database (Denmark)

    Francés, Airán; Anvari-Moghaddam, Amjad; Diaz, Enrique Rodriguez

    2018-01-01

    Maritime applications have found in the integration of the electric power system a way to further improve efficiency and reduce the weight of new electric ships. This movement has led scientists to integrate smart management systems to optimize the overall behavior of the grid. In this context......, power electronics play a key role in linking the different elements of the power architecture. Moreover, the transition towards a dc distribution, which has already been established in other applications, is being regarded as a promising alternative to ease the integration of renewable sources...

  20. Group excitation control of generators in state regional electric power plant transformer station automatic control systems

    Energy Technology Data Exchange (ETDEWEB)

    Gumin, M.I.; Rosman, L.V.; Tarnavskii, V.M.

    1983-01-01

    Group excitation control of electric generators according to standard methods is essential for the management of power plant conditions according to voltage and reactive power. A system is described that provides coordinated changes in the automatic excitation controller set point for generators that operate on common buses. The advantages of the excitation control system are discussed.

  1. Passive system with tunable group velocity for propagating electrical pulses from sub- to superluminal velocities.

    Science.gov (United States)

    Haché, Alain; Essiambre, Sophie

    2004-05-01

    We report an observation of tunable group velocity from sub-luminal to superluminal in a completely passive system. Electric pulses are sent along a spatially periodic conducting medium containing a punctual nonlinearity, and the resulting amplitude-dependent phase shift allows us to control dispersion and the propagation velocity at the stop band frequency.

  2. HTGR-GT and electrical load integrated control

    Energy Technology Data Exchange (ETDEWEB)

    Chan, T.; Openshaw, F.; Pfremmer, D.

    1980-05-01

    A discussion of the control and operation of the HTGR-GT power plant is presented in terms of its closely coupled electrical load and core cooling functions. The system and its controls are briefly described and comparisons are made with more conventional plants. The results of analyses of selected transients are presented to illustrate the operation and control of the HTGR-GT. The events presented were specifically chosen to show the controllability of the plant and to highlight some of the unique characteristics inherent in this multiloop closed-cycle plant.

  3. Integrating power and reserve trade in electricity networks

    NARCIS (Netherlands)

    N.F. Höning (Nicolas); H. Noot (Han); J.A. La Poutré (Han)

    2011-01-01

    textabstractIn power markets, the trade of reserve energy will become more important as more intermittent generation is traded. In this work, we propose a novel bidding mechanism for the integration of power and reserve markets. It adds expressivity to reserve bids and facilitates planning.

  4. Modeling of Electric Vehicles (EVs) for EV Grid Integration Study

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Nielsen, Arne Hejde; Østergaard, Jacob

    2010-01-01

    In order to successfully integrate EVs into power systems, it is necessary to develop a detailed EV model considering both the EV users’ driving requirements and the battery charging and discharging characteristics. A generic EV model was proposed which takes into account charging and discharging...

  5. Efficient integration of renewable energies in the German electricity market; Effiziente Integration erneuerbarer Energien in den deutschen Elektrizitaetsmarkt

    Energy Technology Data Exchange (ETDEWEB)

    Nabe, C.A.

    2006-07-01

    Liberalisation of the electricity sector aims to carry out coordination tasks within the system by markets and market prices. This study examines how markets need to be designed to carry out coordination tasks caused by integration of renewable energies in an efficient way. This question is applied to the German electricity system and recommendations are derived from identified deficits. The examination uses the structure-conduct-performance approach of industrial organisation economics. Integration of renewable energies does not result in entirely new coordination tasks but complicates those that exist in any electricity supply system. Within the short-term coordination tasks provision and operation of reserve capacity is affected by renewable energies. Long-term coordination means that the relation between fixed and variable costs of generators as well as generator flexibility has to be adjusted to the characteristics of renewable energies. The relevant short-term coordination task with the network is congestion management. In the long run costs of grid expansion and permanent congestion management have to be balanced. For the execution of short-run coordination tasks integrated and centralised market architectures are superior to decentralised architectures. The increase of short-term coordination tasks due to renewable energies caused by inflexibilities of consumers and conventional generators results in more information that has to be considered. By centralising that information in one market, an increase in productive efficiency can be obtained. In Germany the increased coordination tasks are determined by the integration of wind generators into the electricity system. The present German market architecture results in inefficiencies in short-term coordination. This is demonstrated by an analysis of procedural rules and prices of the ancillary service markets. They demonstrate that market performance is low and significant deviations from competitive prices

  6. Integrated electrically driven surface plasmon resonance device for biosensing applications.

    Science.gov (United States)

    Jimenez, Alvaro; Lepage, Dominic; Beauvais, Jacques; Dubowski, Jan J

    2015-07-27

    Compact and portable surface plasmon resonance (SPR) biosensors of high sensitivities can be made through integration of discrete components in a single device. We report on a device comprising a vertical cavity light emitting diode (VLED) integrated with gold-based biosensing nanostructures fabricated atop its surface. Coupling of surface plasmon waves was achieved by the introduction of a spacer SiO2 layer located between the light source and the functionalized Au thin film. The SPR signal was extracted in far field with a Au-based nanograting and detected using a custom designed hyperspectral imager. We discuss the performance of a VLED-based SPR device employed for detection of different concentration saltwater solutions.

  7. Integration of available regenerative energy sources in community networks for both electricity and heating

    Energy Technology Data Exchange (ETDEWEB)

    Alcalde Melo, Henrique

    2013-03-06

    . Water can be heated up to 70 C at least once a week preventing the bacterium Legionella to grow. The community is able to supply 99% of the uncontrollable load group demand and 97% of the controllable load group demand. There is enough energy available to heat space during the cold months, if heat pumps with a coefficient of performance greater than two are used. The electric vehicles can be charged using the energy generated in the community via grid or extra battery banks. If energy prices continue to increase, German households will try to find solutions to reduce their energy bills. The integration of several households forming a community network is a solution that optimizes the energy use and space (especially taking wind turbines in consideration), and reduces investments. However, the implementation of such a community still depends on the availability of space, improvement and price reduction of energy storage systems, regulations for energy exchange as well as willingness of the people living in such a community to adapt their daily routine according to the availability of energy.

  8. Effects on functional groups and zeta potential of SAP1pulsed electric field technology.

    Science.gov (United States)

    Liang, Rong; Li, Xuenan; Lin, Songyi; Wang, Jia

    2017-01-01

    SAP 1 pulsed electric field (PEF) technology. The effects of electric field intensity and pulse frequency on SAP 1 electric field intensity 15 kV cm -1 , pulse frequency 1600 Hz and flow velocity 2.93 mL min -1 ). Furthermore, the PEF-treated SAP 1 < MW < 3kDa under optimal conditions lacked the characteristic absorbance of N-H, C = C and the amide band and the zeta potential was reduced to -18.0 mV. Overall, the results of the present study suggest that the improvement of antioxidant activity of SAP 1 < MW < 3kDa is a result of the contribution of the functional groups and the change in zeta potential when treated with PEF. © 2016 Society of Chemical Industry. © 2016 Society of Chemical Industry.

  9. Computation of the radiation Q of dielectric-loaded electrically small antennas in integral equation formulations

    DEFF Research Database (Denmark)

    Kim, Oleksiy S.

    2016-01-01

    A new technique for estimating the impedance frequency bandwidth of electrically small antennas loaded with magneto-dielectric material from a single-frequency simulation in a surface integral equation solver is presented. The estimate is based on the inverse of the radiation Q computed using newly...... derived expressions for the stored energy and the radiated power of arbitrary coupled electric and magnetic currents in free space....

  10. Simulating the value of electric-vehicle-grid integration using a behaviourally realistic model

    Science.gov (United States)

    Wolinetz, Michael; Axsen, Jonn; Peters, Jotham; Crawford, Curran

    2018-02-01

    Vehicle-grid integration (VGI) uses the interaction between electric vehicles and the electrical grid to provide benefits that may include reducing the cost of using intermittent renwable electricity or providing a financial incentive for electric vehicle ownerhip. However, studies that estimate the value of VGI benefits have largely ignored how consumer behaviour will affect the magnitude of the impact. Here, we simulate the long-term impact of VGI using behaviourally realistic and empirically derived models of vehicle adoption and charging combined with an electricity system model. We focus on the case where a central entity manages the charging rate and timing for participating electric vehicles. VGI is found not to increase the adoption of electric vehicles, but does have a a small beneficial impact on electricity prices. By 2050, VGI reduces wholesale electricity prices by 0.6-0.7% (0.7 MWh-1, 2010 CAD) relative to an equivalent scenario without VGI. Excluding consumer behaviour from the analysis inflates the value of VGI.

  11. Effect of strong electric field on the conformational integrity of insulin.

    Science.gov (United States)

    Wang, Xianwei; Li, Yongxiu; He, Xiao; Chen, Shude; Zhang, John Z H

    2014-10-02

    A series of molecular dynamics (MD) simulations up to 1 μs for bovine insulin monomer in different external electric fields were carried out to study the effect of external electric field on conformational integrity of insulin. Our results show that the secondary structure of insulin is kept intact under the external electric field strength below 0.15 V/nm, but disruption of secondary structure is observed at 0.25 V/nm or higher electric field strength. Although the starting time of secondary structure disruption of insulin is not clearly correlated with the strength of the external electric field ranging between 0.15 and 0.60 V/nm, long time MD simulations demonstrate that the cumulative effect of exposure time under the electric field is a major cause for the damage of insulin's secondary structure. In addition, the strength of the external electric field has a significant impact on the lifetime of hydrogen bonds when it is higher than 0.60 V/nm. The fast evolution of some hydrogen bonds of bovine insulin in the presence of the 1.0 V/nm electric field shows that different microwaves could either speed up protein folding or destroy the secondary structure of globular proteins deponding on the intensity of the external electric field.

  12. Design and Analysis of a Novel Speed-Changing Wheel Hub with an Integrated Electric Motor for Electric Bicycles

    Directory of Open Access Journals (Sweden)

    Yi-Chang Wu

    2013-01-01

    Full Text Available The aim of this paper is to present an innovative electromechanical device which integrates a brushless DC (BLDC hub motor with a speed-changing wheel hub stored on the rear wheel of an electric bicycle. It combines a power source and a speed-changing mechanism to simultaneously provide functions of power generation and transmission for electric bicycles. As part of the proposed integrated device, the wheel hub consists of a basic planetary gear train providing three forward speeds including a low-speed gear, a direct drive, and a high-speed gear. Each gear is manually controlled by the shift control sleeve to selectively engage or disengage four pawl-and-ratchet clutches based on its clutching sequence table. The number of gear teeth of each gear element of the wheel hub is synthesized. The BLDC hub motor is an exterior-rotor-type permanent-magnet synchronous motor. Two-dimensional finite-element analysis (FEA software is employed to facilitate the motor design and performance analysis. An analysis of the power transmission path at each gear is provided to verify the validity of the proposed design. The results of this work are beneficial to the embodiment, design, and development of novel electromechanical devices for the power and transmission systems of electric bicycles.

  13. The integration of renewable energy sources into electric power distribution systems. Volume 1: National assessment

    Science.gov (United States)

    Barnes, P. R.; Vandyke, J. W.; Tesche, F. M.; Zaininger, H. W.

    1994-06-01

    Renewable energy technologies such as photovoltaic, solar thermal electricity, and wind turbine power are environmentally beneficial sources of electric power generation. The integration of renewable energy sources into electric power distribution systems can provide additional economic benefits because of a reduction in the losses associated with transmission and distribution lines. Benefits associated with the deferment of transmission and distribution investment may also be possible for cases where there is a high correlation between peak circuit load and renewable energy electric generation, such as photovoltaic systems in the Southwest. Case studies were conducted with actual power distribution system data for seven electric utilities with the participation of those utilities. Integrating renewable energy systems into electric power distribution systems increased the value of the benefits by about 20 to 55% above central station benefits in the national regional assessment. In the case studies presented in Vol. 2, the range was larger: from a few percent to near 80% for a case where costly investments were deferred. In general, additional savings of at least 10 to 20% can be expected by integrating at the distribution level. Wind energy systems were found to be economical in good wind resource regions, whereas photovoltaic systems costs are presently a factor of 2.5 too expensive under the most favorable conditions.

  14. The integration of renewable energy sources into electric power distribution systems. Volume 1: National assessment

    Energy Technology Data Exchange (ETDEWEB)

    Barnes, P.R.; Van Dyke, J.W. [Oak Ridge National Lab., TN (United States); Tesche, F.M. [6714 Norway Road, Dallas, TX (United States); Zaininger, H.W. [Zaininger Engineering Co., San Jose, CA (United States)

    1994-06-01

    Renewable energy technologies such as photovoltaic, solar thermal electricity, and wind turbine power are environmentally beneficial sources of electric power generation. The integration of renewable energy sources into electric power distribution systems can provide additional economic benefits because of a reduction in the losses associated with transmission and distribution lines. Benefits associated with the deferment of transmission and distribution investment may also be possible for cases where there is a high correlation between peak circuit load and renewable energy electric generation, such as photovoltaic systems in the Southwest. Case studies were conducted with actual power distribution system data for seven electric utilities with the participation of those utilities. Integrating renewable energy systems into electric power distribution systems increased the value of the benefits by about 20 to 55% above central station benefits in the national regional assessment. In the case studies presented in Vol. II, the range was larger: from a few percent to near 80% for a case where costly investments were deferred. In general, additional savings of at least 10 to 20% can be expected by integrating at the distribution level. Wind energy systems were found to be economical in good wind resource regions, whereas photovoltaic systems costs are presently a factor of 2.5 too expensive under the most favorable conditions.

  15. An integrated assessment of global and regional water demands for electricity generation to 2095

    Science.gov (United States)

    Davies, Evan G. R.; Kyle, Page; Edmonds, James A.

    2013-02-01

    Electric power plants account for approximately half the global industrial water withdrawal. Although continued electric-sector expansion is probable, significant variations in water intensity by electricity technology and cooling system type make its effects on water demands uncertain. Using GCAM, an integrated assessment model of energy, agriculture, and climate change, we establish lower-, median-, and upper-bound estimates for current electric-sector water withdrawals and consumption in 14 geopolitical regions, and compare them with available estimates. We then explore water use for electricity to 2095, focusing on uncertainties in water withdrawal and consumption intensities, power plant cooling system changes, and adoption rates of water-saving technologies. Results reveal a probable decrease in the water withdrawal intensity with capital stock turnover, but a corresponding increase in consumptive use, for which technologies under development may compensate. At a regional scale, water use varies significantly based on the existing capital stock and its evolution over the century.

  16. Electrical stimulation enhances cell migration and integrative repair in the meniscus

    Science.gov (United States)

    Yuan, Xiaoning; Arkonac, Derya E.; Chao, Pen-Hsiu Grace; Vunjak-Novakovic, Gordana

    2014-01-01

    Electrical signals have been applied towards the repair of articular tissues in the laboratory and clinical settings for over seventy years. We focus on healing of the meniscus, a tissue essential to knee function with limited innate repair potential, which has been largely unexplored in the context of electrical stimulation. Here we demonstrate for the first time that electrical stimulation enhances meniscus cell migration and integrative tissue repair. We optimize pulsatile direct current electrical stimulation parameters on cells at the micro-scale, and apply these to healing of full-thickness defects in explants at the macro-scale. We report increased expression of the adenosine A2b receptor in meniscus cells after stimulation at the micro- and macro-scale, and propose a role for A2bR in meniscus electrotransduction. Taken together, these findings advance our understanding of the effects of electrical signals and their mechanisms of action, and contribute to developing electrotherapeutic strategies for meniscus repair.

  17. Integrating wind output with bulk power operations and wholesale electricity markets

    Energy Technology Data Exchange (ETDEWEB)

    Hirst, E. [Consulting in Electric-Industry Restructuring, Oak Ridge, TN (United States)

    2002-07-01

    Wind farms have three characteristics that complicate their widespread application as an electricity resource: limited control, unpredictability and variability. Therefore the integration of wind output into bulk power electric systems is qualitatively different from that of other types of generators. The electric system operator must move other generators up or down to offset the time-varying wind fluctuations. Such movements raise the costs of fuel and maintenance for these other generators. Not only is wind power different, it is new. The operators of bulk power systems have limited experience in integrating wind output into the larger system. As a consequence, market rules that treat wind fairly - neither subsidizing nor penalizing its operation - have not yet been developed. The lack of data and analytical methods encourages wind advocates and sceptics to rely primarily on their biases and beliefs in suggesting how wind should be integrated into bulk power systems. This project helps fill this data and analysis gap. Specifically, it develops and applies a quantitative method for the integration of a wind resource into a large electric system. The method permits wind to bid its output into a short-term forward market (specifically, an hour-ahead energy market) or to appear in real time and accept only intrahour and hourly imbalance payments for the unscheduled energy it delivers to the system. Finally, the method analyses the short-term (minute-to-minute) variation in wind output to determine the regulation requirement the wind resource imposes on the electrical system. (author)

  18. Development of a dynamometer for an integrated-starter-generator (ISG) motor used in electric vehicles

    Science.gov (United States)

    Wang, Zai-zhou; Zhang, Cheng-ning; Song, Qiang; Zhang, Chun-xiang

    2008-12-01

    Hybrid-Electric Vehicle (HEV) which combined the electric motor with auxiliary power unit in a car driven is introduced. Characteristic of Hybrid-Electric Vehicle are different from the other vehicle, in the structure of Hybrid-Electric Vehicle, Integrated Starter Generator (ISG) electrical system can achieve high efficient performance of driving and generating electricity simultaneously. These systems adopt the sum torque through engine and generator, the motor connected transmission through engine. According to the requirements of different conditions, the torque of motor and transmission are compound in various forms to achieve optimal driving efficiency.This study developed a dynamometer to measure the relationship between locked torques with temperature rises of an Integrated Starter Generator motor used in electrical vehicles. The dynamometer adopted an AC motor to obtain the relationship between drive and load functions, which developed in this study can perform real-time measurements and storage of measured data obtained from the dynamometer. Experiments for measuring temperature rise of ISG motor were performed at three different conditions, namely 56 Nm locked rotor torques and 18.8A locked rotor current; 57.1Nm constant torque at 1050rpm; constant power with 14.3Nm and 4050rpm, respectively. Based on the theory of temperature rise, the temperature rises of motor are 14K, 33.1K, and 16.01K for the tested cases respectively. Measured results show that the performance of motor system is satisfied with the design.

  19. Large-scale integration of renewable energy into international electricity markets

    DEFF Research Database (Denmark)

    Lund, Henrik

    2004-01-01

    The paper presents the ability of different energy systems and regulation strategies to integrate renewable energy sources (RES) into the electricity supply system. The fluctuating electricity production from renewable energy must interact with the rest of the production units in order to make it...... capacity. Such investments are feasible because the ability to benefit from trade of electricity on the exchange is improved. At the same time the economic advantage of renewable energy is increased.......The paper presents the ability of different energy systems and regulation strategies to integrate renewable energy sources (RES) into the electricity supply system. The fluctuating electricity production from renewable energy must interact with the rest of the production units in order to make...... it possible for the system to secure a balance between supply and demand. At the same time most European electricity systems are in the process of being transformed into competitive electricity markets. Already today, the annual share of wind power in the western part of Denmark is nearly 20 percent, which...

  20. Power system and market integration of renewable electricity

    Directory of Open Access Journals (Sweden)

    Erdmann Georg

    2017-01-01

    Full Text Available This paper addresses problems of power generation markets that arise under high shares of intermittent generation. After discussing the economic fundamentals of wind and photovoltaic investments, the paper introduces the concept of the “Merit order effect of renewables”. According to this concept electricity prices on wholesale power markets become smaller in periods during which large volumes of wind and photovoltaic generation is available and squeeze out relative expensive gas-fired power generation. The merit order effect of renewables has a couple of consequences. Among others it challenges the profitability of conventional power generation. If such generation capacities are still necessary, at least during a transitory period, a capacity mechanism may be put in place that generates an additional stream of income to the operators of conventional power generators. Another consequence of growing intermittent power generation is the need for concepts and technologies that deal with excess generation. Among these concepts are virtual and physical power storage capacities. In the last parts of the paper models are presented that are able to analyze these concepts from an economic point of view.

  1. Power system and market integration of renewable electricity

    Science.gov (United States)

    Erdmann, Georg

    2017-07-01

    This paper addresses problems of power generation markets that arise under high shares of intermittent generation. After discussing the economic fundamentals of wind and photovoltaic investments, the paper introduces the concept of the "Merit order effect of renewables". According to this concept electricity prices on wholesale power markets become smaller in periods during which large volumes of wind and photovoltaic generation is available and squeeze out relative expensive gas-fired power generation. The merit order effect of renewables has a couple of consequences. Among others it challenges the profitability of conventional power generation. If such generation capacities are still necessary, at least during a transitory period, a capacity mechanism may be put in place that generates an additional stream of income to the operators of conventional power generators. Another consequence of growing intermittent power generation is the need for concepts and technologies that deal with excess generation. Among these concepts are virtual and physical power storage capacities. In the last parts of the paper models are presented that are able to analyze these concepts from an economic point of view.

  2. Multi-agents Based Modelling for Distribution Network Operation with Electric Vehicle Integration

    DEFF Research Database (Denmark)

    Hu, Junjie; Morais, Hugo; Zong, Yi

    2014-01-01

    Electric vehicles (EV) can become integral part of a smart grid because instead of just consuming power they are capable of providing valuable services to power systems. To integrate EVs smoothly into the power systems, a multi-agents system (MAS) with hierarchical organization structure...... is proposed in this paper. The proposed MAS system consists of three types of agents: distribution system operator agent (DSO agent), electric vehicle fleet operator agent (EV FO agent or alternatively called virtual power plant agent) and EV agent. A DSO agent belongs to the top level of the hierarchy...

  3. Electric Vehicles Integration in the Electric Power System with Intermittent Energy Sources - The Charge/Discharge infrastructure

    DEFF Research Database (Denmark)

    Marra, Francesco

    components such as a lithiumion battery pack, a battery management system and charging/discharging units. The second part of the research exploits the use of EV load coordination to facilitate the integration of wind power in the Danish power system. A proof of concept of regulating power reserves......The replacement of conventional fuelled vehicles with electric vehicles (EVs) is going to increase in the coming years, following the trend seen for renewable energy sources (RES), as photovoltaic (PV) and wind power. In this scenario, the electric power systems in Europe are going to accommodate...... increased levels of non-dispatchable and fluctuating energy sources, as well as additional power demand due to EV charging. If the charging of EVs can be intelligently managed, several advantages can be offered to the power system. How useful coordinated EV charging can be, in combination with RES...

  4. An Integrated Multifunctional Bidirectional AC/DC and DC/DC Converter for Electric Vehicles Applications

    Directory of Open Access Journals (Sweden)

    Liwen Pan

    2016-06-01

    Full Text Available This paper presents an on-board vehicular battery charger that integrates bidirectional AC/DC converter and DC/DC converter to achieve high power density for application in electric vehicles (EVs. The integrated charger is able to transfer electrical energy between the battery pack and the electric traction system and to function as an AC/DC battery charger. The integrated charger topology is presented and the design of passive components is discussed. The control schemes are developed for motor drive system and battery-charging system with a power pulsation reduction circuit. Simulation results in MATLAB/Simulink and experiments on a 30-kW motor drive and 3.3-kW AC/DC charging prototype validate the performance of the proposed technology. In addition, power losses, efficiency comparison and thermal stress for the integrated charger are illustrated. The results of the analyses show the validity of the advanced integrated charger for electric vehicles.

  5. Behavioral Health Integration in Large Multi-group Pediatric Practice.

    Science.gov (United States)

    Schlesinger, Abigail Boden

    2017-03-01

    There is increasing interest in methods to improve access to behavioral health services for children and adolescents. Children's Community Pediatric Behavioral Health Service (CCPBHS) is an integrated behavioral health service whose method of (a) creating a leadership team with empowered administrative and clinical stakeholders who can act on a commitment to change and (b) having a clear mission statement with integrated administrative and clinical care processes can serve as a model for implementing integration efforts within the medical home. Community Pediatrics Behavioral Health Service (CPBHS) is a sustainable initiative that improved the utilization of physical health and behavioral health systems for youth and improved the utilization of evidence-based interventions for youth served in primary care.

  6. Integrating Social Justice in Group Work: The Next Decade

    Science.gov (United States)

    Hays, Danica G.; Arredondo, Patricia; Gladding, Samuel T.; Toporek, Rebecca L.

    2010-01-01

    Group work can be an effective outlet for facilitating client empowerment at individual and systemic levels. This article outlines strategies for increasing attention to social justice issues in group work over the next decade within education, training, supervision, practice, and research. Drawing from historical perspectives, current literature,…

  7. Impact and Cost Evaluation of Electric Vehicle Integration on Medium Voltage Distribution Networks

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Cheng, Lin; Pineau, Ulysse

    2013-01-01

    This paper presents the analysis of the impact of electric vehicle (EV) integration on medium voltage (MV) distribution networks and the cost evaluation of replacing the overloaded grid components. A number of EV charging scenarios have been studied. A 10 kV grid from the Bornholm Island...

  8. A control technique for integration of DG units to the electrical networks

    DEFF Research Database (Denmark)

    Pouresmaeil, Edris; Miguel-Espinar, Carlos; Massot-Campos, Miquel

    2013-01-01

    This paper deals with a multiobjective control technique for integration of distributed generation (DG) resources to the electrical power network. The proposed strategy provides compensation for active, reactive, and harmonic load current components during connection of DG link to the grid. The d...

  9. Carbon nanotubes integrated in electrically insulated channels for lab-on-a-chip applications

    DEFF Research Database (Denmark)

    Mogensen, Klaus Bo; Gangloff, L.; Bøggild, Peter

    2009-01-01

    A fabrication process for monolithic integration of vertically aligned carbon nanotubes in electrically insulated microfluidic channels is presented. A 150 nm thick amorphous silicon layer could be used both for anodic bonding of a glass lid to hermetically seal the microfluidic glass channels...

  10. Impact Study of Electric Vehicle (EV) Integration on Low Voltage (LV) Grids

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Cha, Seung-Tae; Nielsen, Arne Hejde

    2012-01-01

    Large scale deployment of electric vehicles (EVs) has become a very interesting option because it can both reduce the greenhouse gas (GHG) emission from the transport sector and facilitate the integration of more renewable energy resources (RES) by providing the flexibility of EV charging demands...

  11. Optimal Operation of the Integrated Electrical and Heating Systems to Accommodate the Intermittent Renewable Sources

    DEFF Research Database (Denmark)

    Li, Jinghua; Fang, Jiakun; Zeng, Qing

    2016-01-01

    The integration of electrical and heating systems has great potential to enhance the flexibility of power systems to accommodate more renewable power such as the wind and solar. This study was to investigate an optimal way to integrate the energy of both systems in urban areas. The amount of energy...... the effectiveness of the proposed solution. The results showed that coordinated optimization of the energy distribution have significant benefits for reducing wind curtailment, operation cost, and energy losses. The proposed model and methodology could help system operators with decision support in the emerging...... conversion between the electrical system and heating system was optimally decided so that the demand within both systems could be met at the least operational cost. Besides, the best node to join with the electrical system and heating system was chosen by consideration of the energy transmission loss...

  12. Preventing Distribution Grid Congestion by Integrating Indirect Control in a Hierarchical Electric Vehicles Management System

    DEFF Research Database (Denmark)

    Hu, Junjie; Si, Chengyong; Lind, Morten

    2016-01-01

    In this paper, a hierarchical management system is proposed to integrate electric vehicles (EVs) into a distribution grid. Three types of actors are included in the system: Distribution system operators (DSOs), Fleet operators (FOs) and EV owners. In contrast to a typical hierarchical control...... system where the upper level controller directly controls the lower level subordinated nodes, this study aims to integrate two common indirect control methods:market-based control and price-based control into the hierarchical electric vehicles management system. Specifically, on the lower level...... of the hierarchy, the FOs coordinate the charging behaviors of their EV users using a price-based control method. A parametric utility model is used on the lower level to characterize price elasticity of electric vehicles and thus used by the FO to coordinate the individual EV charging. On the upper level...

  13. Geothermal electricity generation and desalination: an integrated process design to conserve latent heat with operational improvements

    KAUST Repository

    Missimer, Thomas M.

    2016-02-05

    A new process combination is proposed to link geothermal electricity generation with desalination. The concept involves maximizing the utilization of harvested latent heat by passing the turbine exhaust steam into a multiple effect distillation system and then into an adsorption desalination system. Processes are fully integrated to produce electricity, desalted water for consumer consumption, and make-up water for the geothermal extraction system. Further improvements in operational efficiency are achieved by adding a seawater reverse osmosis system to the site to utilize some of the generated electricity and using on-site aquifer storage and recovery to maximize water production with tailoring of seasonal capacity requirements and to meet facility maintenance requirements. The concept proposed conserves geothermally harvested latent heat and maximizes the economics of geothermal energy development. Development of a fully renewable energy electric generation-desalination-aquifer storage campus is introduced within the framework of geothermal energy development. © 2016 The Author(s). Published by Taylor & Francis

  14. The Performance Enhancement Group Program: Integrating Sport Psychology and Rehabilitation

    OpenAIRE

    Granito, Vincent J.; Hogan, Jeffery B.; Varnum, Lisa K.

    1995-01-01

    In an effort to improve the psychological health of the athlete who has sustained an injury, the Performance Enhancement Group program for injured athletes was created. This paper will offer a model for the Performance Enhancement Group program as a way to: 1) support the athlete, both mentally and physically; 2) deal with the demands of rehabilitation; and 3) facilitate the adjustments the athlete has to make while being out of the competitive arena. The program consists of responsibilities ...

  15. Integrating education, group support, and case management for diabetic Hispanics.

    Science.gov (United States)

    Brown, Sharon A; García, Alexandra A; Winter, Mary; Silva, Lita; Brown, Adama; Hanis, Craig L

    2011-01-01

    Culturally tailored diabetes self-management education (DSME) improves glycemic control and other health outcomes in Mexican Americans but sociocultural barriers to health improvements remain. This study explored the feasibility of adding a nurse case manager (NCM) to DSME to foster DSME attendance and increase utilization of other available health care services. The setting was a rural community on the Texas-Mexico border in one of the poorest counties in the United States. Using a repeated measures pretest, post-test control group design, we enrolled 165 Mexican American adults into: 1) an experimental group that received a DSME intervention plus access to a NCM; or 2) a control group that received DSME only. Both experimental and control groups received the DSME intervention, reported positive changes in diet and physical activity, and showed improved clinical outcomes; there were no significant group differences. A statistically significant reduction in body mass index was seen in women compared to men, regardless of group or number of NCM contacts. For individuals having the most NCM contacts, DSME attendance rates were greater. Participants expressed acceptance of the NCM; they preferred face-to-face contact rather than by telephone. Our previously tested, culturally tailored DSME continues to be an effective strategy for improving glycemic control in Mexican Americans. This feasibility study provided partial support for the NCM model for underserved border communities, but additional research is needed on resource utilization and the nature of NCM contacts.

  16. The group coach as a socializing agent for integration?

    DEFF Research Database (Denmark)

    Stelter, Reinhard; Ryom, Knud

    other in this process. The focus of the intervention was on identity, on cultural, social and school issues, and on personal development. Qualitative interviews were conducted with ten 7th grade boys and complemented by observations. The (preliminary) results indicate a polarization of the boys...... sessions were implemented in this study to develop the boys’ social resilience and to support their awareness and readiness to act actively and responsibly in their own lives and in the communities they are part of. The sessions were conducted in groups of 4-6 participants with two voluntary and well......-educated coaches and began in September 2013. All boys from 6th to 9th grade were offered group coaching on a regular basis as part of their school education. The intervention will finish in June 2015. The ambition was to provide a reflective and collaborative space where the whole group helped to support each...

  17. Battery Pack Grouping and Capacity Improvement for Electric Vehicles Based on a Genetic Algorithm

    Directory of Open Access Journals (Sweden)

    Zheng Chen

    2017-03-01

    Full Text Available This paper proposes an optimal grouping method for battery packs of electric vehicles (EVs. Based on modeling the vehicle powertrain, analyzing the battery degradation performance and setting up the driving cycle of an EV, a genetic algorithm (GA is applied to optimize the battery grouping topology with the objective of minimizing the total cost of ownership (TCO. The battery capacity and the serial and parallel amounts of the pack can thus be determined considering the influence of battery degradation. The results show that the optimized pack grouping can be solved by GA within around 9 min. Compared with the results of maximum discharge efficiency within a fixed lifetime, the proposed method can not only achieve a higher discharge efficiency, but also reduce the TCO by 2.29%. To enlarge the applications of the proposed method, the sensitivity to driving conditions is also analyzed to further prove the feasibility of the proposed method.

  18. Radiotracer dose reduction in integrated PET/MR: implications from national electrical manufacturers association phantom studies.

    Science.gov (United States)

    Oehmigen, Mark; Ziegler, Susanne; Jakoby, Bjoern W; Georgi, Jens-Christoph; Paulus, Daniel H; Quick, Harald H

    2014-08-01

    With the replacement of ionizing CT by MR imaging, integrated PET/MR in selected clinical applications may reduce the overall patient radiation dose when compared with PET/CT. Further potential for radiotracer dose reduction, while maintaining PET image quality (IQ) in integrated PET/MR, may be achieved by increasing the PET acquisition duration to match the longer time needed for MR data acquisition. To systematically verify this hypothesis under controlled conditions, this dose-reduction study was performed using a standardized phantom following the National Electrical Manufacturers Association (NEMA) IQ protocol. All measurements were performed on an integrated PET/MR whole-body hybrid system. The NEMA IQ phantom was filled with water and a total activity of 50.35 MBq of (18)F-FDG. The sphere-to-background activity ratio was 8:1. Multiple PET data blocks of 20-min acquisition time were acquired in list-mode format and were started periodically at multiples of the (18)F-FDG half-lives. Different sinograms (2, 4, 8, and 16 min in duration) were reconstructed. Attenuation correction of the filled NEMA phantom was performed using a CT-based attenuation map template. The attenuation-corrected PET images were then quantitatively evaluated following the NEMA IQ protocol, investigating contrast recovery, background variability, and signal-to-noise ratio. Image groups with half the activity and twice the acquisition time were evaluated. For better statistics, the experiment was repeated 3 times. Contrast recovery, background variability, and signal-to-noise ratio remained almost constant over 3 half-life periods when the decreasing radiotracer activity (100%, 50%, 25%, and 12.5%) was compensated by increasing acquisition time (2, 4, 8, and 16 min). The variation of contrast recovery over 3 half-life periods was small (-6% to +7%), with a mean variation of 2%, compared with the reference setting (100%, 2 min). The signal-to-noise ratio of the hot spheres showed only minor

  19. Effect of humic acids on electricity generation integrated with xylose degradation in microbial fuel cells

    DEFF Research Database (Denmark)

    Huang, Liping; Angelidaki, Irini

    2008-01-01

    Pentose and humic acids (HA) are the main components of hydrolysates, the liquid fraction produced during thermohydrolysis of lignocellulosic material. Electricity generation integrated with xylose (typical pentose) degradation as well as the effect of HA on electricity production in microbial fuel...... degradation and formation of more oxidized products (acetate and formate) as well as less reduced products (lactate and ethanol) compared to the controls. The reduced power generation in the presence of DMW was attributed to the presence of bacterial inhibitors such as phenolic compounds. Therefore, new...

  20. Miniaturized Integrated Platform for Electrical and Optical Monitoring of Cell Cultures

    Directory of Open Access Journals (Sweden)

    Costin Brasoveanu

    2012-08-01

    Full Text Available The following paper describes the design and functions of a miniaturized integrated platform for optical and electrical monitoring of cell cultures and the necessary steps in the fabrication and testing of a silicon microchip Micro ElectroMechanical Systems (MEMS-based technology for cell data recording, monitoring and stimulation. The silicon microchip consists of a MEMS machined device containing a shank of 240 μm width, 3 mm long and 50 μm thick and an enlarged area of 5 mm × 5 mm hosting the pads for electrical connections. Ten platinum electrodes and five sensors are placed on the shank and are connected with the external electronics through the pads. The sensors aim to monitor the pH, the temperature and the impedance of the cell culture. The electrodes are bidirectional and can be used both for electrical potential recording and stimulation of cells. The fabrication steps are presented, along with the electrical and optical characterization of the system. The target of the research is to develop a new and reconfigurable platform according to the particular applications needs, as a tool for the biologist, chemists and medical doctors working is the field of cell culture monitoring in terms of growth, maintenance conditions, reaction to electrical or chemical stimulation (drugs, toxicants, etc.. HaCaT (Immortalised Human Keratinocyte cell culture has been used for demonstration purposes in order to provide information on the platform electrical and optical functions.

  1. Authentication Procedures - The Procedures and Integration Working Group

    Energy Technology Data Exchange (ETDEWEB)

    Kouzes, Richard T.; Bratcher, Leigh; Gosnell, Tom; Langner, Diana; MacArthur, D.; Mihalczo, John T.; Pura, Carolyn; Riedy, Alex; Rexroth, Paul; Scott, Mary; Springarn, Jay

    2001-05-31

    Authentication is how we establish trust in monitoring systems and measurements to verify compliance with, for example, the storage of nuclear weapons material. Authentication helps assure the monitoring party that accurate and reliable information is provided by any measurement system and that any irregularities are detected. The U.S. is developing its point of view on the procedures for authentication of monitoring systems now planned or contemplated for arms reduction and control applications. The authentication of a system utilizes a set of approaches, including: functional testing using trusted calibration sources, evaluation of documentation, evaluation of software, evaluation of hardware, random selection of hardware and software, tamper-indicating devices, and operational procedures. Authentication of measurement systems should occur throughout their lifecycles, starting with the elements of design, and moving to off-site authentication, on-siste authentication, and continuing with authentication following repair. The most important of these is the initial design of systems. Hardware and software design criteria and procurement decisions can make future authentication relatively straightforward or conversely very difficult. Facility decisions can likewise ease the procedures for authentication since reliable and effective monitoring systems and tampering indicating devices can help provide the assurance needed in the integrity of such items as measurement systems, spare equipment, and reference sources. This paper will summarize the results of the U.S. Authentication Task Force discussion on the role of procedures in authentication.

  2. Quantifying Co-benefits of Renewable Energy through Integrated Electricity and Air Quality Modeling

    Science.gov (United States)

    Abel, D.

    2016-12-01

    This work focuses on the coordination of electricity sector changes with air quality and health improvement strategies through the integration of electricity and air quality models. Two energy models are used to calculate emission perturbations associated with changes in generation technology (20% generation from solar photovoltaics) and demand (future electricity use under a warmer climate). Impacts from increased solar PV penetration are simulated with the electricity model GridView, in collaboration with the National Renewable Energy Laboratory (NREL). Generation results are used to scale power plant emissions from an inventory developed by the Lake Michigan Air Directors Consortium (LADCO). Perturbed emissions and are used to calculate secondary particulate matter with the Community Multiscale Air Quality (CMAQ) model. We find that electricity NOx and SO2 emissions decrease at a rate similar to the total fraction of electricity supplied by solar. Across the Eastern U.S. region, average PM2.5 is reduced 5% over the summer, with highest reduction in regions and on days of greater PM2.5. A similar approach evaluates the air quality impacts of elevated electricity demand under a warmer climate. Meteorology is selected from the North American Regional Climate Change Assessment Program (NARCCAP) and input to a building energy model, eQUEST, to assess electricity demand as a function of ambient temperature. The associated generation and emissions are calculated on a plant-by-plant basis by the MyPower power sector model. These emissions are referenced to the 2011 National Emissions Inventory to be modeled in CMAQ for the Eastern U.S. and extended to health impact evaluation with the Environmental Benefits Mapping and Analysis Program (BenMAP). All results focus on the air quality and health consequences of energy system changes, considering grid-level changes to meet climate and air quality goals.

  3. Correlation Functions of Harish-Chandra Integrals over the Orthogonal and the Symplectic Groups

    Science.gov (United States)

    Prats Ferrer, A.; Eynard, B.; di Francesco, P.; Zuber, J.-B.

    2007-12-01

    The Harish-Chandra correlation functions, i.e. integrals over compact groups of invariant monomials prod operatorname{tr}(X^{p1}\\varOmega Y^{q1}\\varOmega^{dagger}X^{p2}\\cdots) with the weight exp tr ( X Ω Y Ω † ) are computed for the orthogonal and symplectic groups. We proceed in two steps. First, the integral over the compact group is recast into a Gaussian integral over strictly upper triangular complex matrices (with some additional symmetries), supplemented by a summation over the Weyl group. This result follows from the study of loop equations in an associated two-matrix integral and may be viewed as the adequate version of Duistermaat-Heckman's theorem for our correlation function integrals. Secondly, the Gaussian integration over triangular matrices is carried out and leads to compact determinantal expressions.

  4. Identification of advantageous electricity generation options in sub-Saharan Africa integrating existing resources

    Science.gov (United States)

    Szabó, Sándor; Moner-Girona, Magda; Kougias, Ioannis; Bailis, Rob; Bódis, Katalin

    2016-10-01

    Pioneering approaches are needed to accelerate universal access to electricity while simultaneously transitioning to reliable, sustainable and affordable energy systems. In sub-Saharan Africa (SSA), the challenges lie in attracting the private sector to complement public investments. Here, we present an integrated ‘low-hanging-fruit’ approach aimed at boosting private investment and speeding up the deployment of renewable energy systems in SSA. We analyse the potential of existing energy infrastructure, where a significant upfront investment has already been made, to be exploited for electricity generation. We develop a comprehensive methodology to identify and select suitable locations in SSA and estimate their potential for exploitation. These locations have been further analysed in terms of power capacity potential, electricity output, investments needed and population to be benefited. This strategy to attract additional finance can easily be reproduced, engaging private investors while simultaneously helping to achieve the United Nations (UN) Sustainable Development Goals on energy.

  5. Integrated impacts of future electricity mix scenarios on select southeastern US water resources

    Science.gov (United States)

    Yates, D.; Meldrum, J.; Flores-Lopez, F.; Davis, Michelle

    2013-09-01

    Recent studies on the relationship between thermoelectric cooling and water resources have been made at coarse geographic resolution and do not adequately evaluate the localized water impacts on specific rivers and water bodies. We present the application of an integrated electricity generation-water resources planning model of the Apalachicola/Chattahoochee/Flint (ACF) and Alabama-Coosa-Tallapoosa (ACT) rivers based on the regional energy deployment system (ReEDS) and the water evaluation and planning (WEAP) system. A future scenario that includes a growing population and warmer, drier regional climate shows that benefits from a low-carbon, electricity fuel-mix could help maintain river temperatures below once-through coal-plants. These impacts are shown to be localized, as the cumulative impacts of different electric fuel-mix scenarios are muted in this relatively water-rich region, even in a warmer and drier future climate.

  6. Muscle stimulation waveform timing patterns for upper and lower leg muscle groups to increase muscular endurance in functional electrical stimulation pedaling using a forward dynamic model.

    Science.gov (United States)

    Hakansson, Nils A; Hull, M L

    2009-09-01

    Functional electrical stimulation (FES) of pedaling provides a means by which individuals with spinal cord injury can obtain cardiorespiratory exercise. However, the early onset of muscle fatigue is a limiting factor in the cardiorespiratory exercise obtained while pedaling an FES ergometer. One objective of this study was to determine muscle excitation timing patterns to increase muscle endurance in FES pedaling for three upper leg muscle groups and to compare these timing patterns to those used in a commercially available FES ergometer. The second objective was to determine excitation timing patterns for a lower leg muscle group in conjunction with the three upper leg muscle groups. The final objective was to determine the mechanical energy contributions of each of the muscle groups to drive the crank. To fulfill these objectives, we developed a forward dynamic simulation of FES pedaling to determine electrical stimulation on and off times that minimize the muscle stress-time integral of the stimulated muscles. The computed electrical stimulation on and off times differed from those utilized by a commercially available FES ergometer and resulted in 17% and 11% decrease in the muscle stress-time integral for the three upper leg muscle groups and four upper and lower leg muscle groups, respectively. Also, the duration of muscle activation by the hamstrings increased by 5% over a crank cycle for the computed stimulation on and off times, and the mechanical energy generated by the hamstrings increased by 20%. The lower leg muscle group did not generate sufficient mechanical energy to reduce the energy contributions of the upper leg muscle groups. The computed stimulation on and off times could prolong FES pedaling, and thereby provide improved cardiorespiratory and muscle training outcomes for individuals with spinal cord injury. Including the lower leg muscle group in FES pedaling could increase cardiorespiratory demand while not affecting the endurance of the

  7. Integrated Computing, Communication, and Distributed Control of Deregulated Electric Power Systems

    Energy Technology Data Exchange (ETDEWEB)

    Bajura, Richard; Feliachi, Ali

    2008-09-24

    Restructuring of the electricity market has affected all aspects of the power industry from generation to transmission, distribution, and consumption. Transmission circuits, in particular, are stressed often exceeding their stability limits because of the difficulty in building new transmission lines due to environmental concerns and financial risk. Deregulation has resulted in the need for tighter control strategies to maintain reliability even in the event of considerable structural changes, such as loss of a large generating unit or a transmission line, and changes in loading conditions due to the continuously varying power consumption. Our research efforts under the DOE EPSCoR Grant focused on Integrated Computing, Communication and Distributed Control of Deregulated Electric Power Systems. This research is applicable to operating and controlling modern electric energy systems. The controls developed by APERC provide for a more efficient, economical, reliable, and secure operation of these systems. Under this program, we developed distributed control algorithms suitable for large-scale geographically dispersed power systems and also economic tools to evaluate their effectiveness and impact on power markets. Progress was made in the development of distributed intelligent control agents for reliable and automated operation of integrated electric power systems. The methodologies employed combine information technology, control and communication, agent technology, and power systems engineering in the development of intelligent control agents for reliable and automated operation of integrated electric power systems. In the event of scheduled load changes or unforeseen disturbances, the power system is expected to minimize the effects and costs of disturbances and to maintain critical infrastructure operational.

  8. KOJAK Group Finder: Scalable Group Detection via Integrated Knowledge-Based and Statistical Reasoning

    Science.gov (United States)

    2006-09-01

    evidence of communication events, business transactions, familial relationships, etc. For unknown groups neither name nor known members are available...evidence of communication events, business transactions, familial relationships, etc. For unknown groups neither name nor known members are available. All...STELLA and PowerLoomn. These modules comunicate with a knowledge basec using KIF and stan(lardl relational database systelnis using either standard

  9. Driving pattern analysis of Nordic region based on the national travel surveys for electric vehicle integration

    DEFF Research Database (Denmark)

    Liu, Zhaoxi; Wu, Qiuwei; Christensen, Linda

    2015-01-01

    to the power system. This paper presents a methodology to transform driving behavior of persons into the one of cars in order to analyze the driving pattern of electric vehicles (EVs) based on the National Travel Surveys. In the proposed methodology, a statistical process is used to obtain the driving behavior......EVs show great potential to cope with the intermittency of renewable energy sources (RES) and provide demand side flexibility required by the smart grid.On the other hand, the EVs will increase the electricity consumption. Large scale integration of EVs will probably have substantial impacts....../discharging availability of the vehicles along the day were obtained. Two types of EV availabilities were studied in this paper considering different charging/discharging conditions of EVs for the power system integration, i.e. EV availability all day andEV availability at home. The results show that the daily driving...

  10. Performance Characteristics of a Modularized and Integrated PTC Heating System for an Electric Vehicle

    Directory of Open Access Journals (Sweden)

    Yoon Hyuk Shin

    2015-12-01

    Full Text Available A modularized positive temperature coefficient heating system has controller-integrated heater modules. Such a heating system that uses a high-voltage power of 330 V was developed in the present study for use in electric vehicles. Four heater modules and one controller with an input power of 5.6 kW were integrated in the modularized system, which was designed for improved heating power density and light weight compared to the conventional heating system, in which the controller is separated. We experimentally investigated the performance characteristics, namely, the heating capacity, energy efficiency, and pressure drop, of a prototype of the developed heating system and found it to have satisfactory performance. The findings of this study will contribute to the development of heating systems for electric vehicles.

  11. Silicon photonic integrated circuits with electrically programmable non-volatile memory functions.

    Science.gov (United States)

    Song, J-F; Lim, A E-J; Luo, X-S; Fang, Q; Li, C; Jia, L X; Tu, X-G; Huang, Y; Zhou, H-F; Liow, T-Y; Lo, G-Q

    2016-09-19

    Conventional silicon photonic integrated circuits do not normally possess memory functions, which require on-chip power in order to maintain circuit states in tuned or field-configured switching routes. In this context, we present an electrically programmable add/drop microring resonator with a wavelength shift of 426 pm between the ON/OFF states. Electrical pulses are used to control the choice of the state. Our experimental results show a wavelength shift of 2.8 pm/ms and a light intensity variation of ~0.12 dB/ms for a fixed wavelength in the OFF state. Theoretically, our device can accommodate up to 65 states of multi-level memory functions. Such memory functions can be integrated into wavelength division mutiplexing (WDM) filters and applied to optical routers and computing architectures fulfilling large data downloading demands.

  12. An Electric Field Volume Integral Equation Approach to Simulate Surface Plasmon Polaritons

    Directory of Open Access Journals (Sweden)

    R. Remis

    2013-02-01

    Full Text Available In this paper we present an electric field volume integral equation approach to simulate surface plasmon propagation along metal/dielectric interfaces. Metallic objects embedded in homogeneous dielectric media are considered. Starting point is a so-called weak-form of the electric field integral equation. This form is discretized on a uniform tensor-product grid resulting in a system matrix whose action on a vector can be computed via the fast Fourier transform. The GMRES iterative solver is used to solve the discretized set of equations and numerical examples, illustrating surface plasmon propagation, are presented. The convergence rate of GMRES is discussed in terms of the spectrum of the system matrix and through numerical experiments we show how the eigenvalues of the discretized volume scattering operator are related to plasmon propagation and the medium parameters of a metallic object.

  13. Dynamic Optimal Energy Flow in the Integrated Natural Gas and Electrical Power Systems

    DEFF Research Database (Denmark)

    Fang, Jiakun; Zeng, Qing; Ai, Xiaomeng

    2018-01-01

    This work focuses on the optimal operation of the integrated gas and electrical power system with bi-directional energy conversion. Considering the different response times of the gas and power systems, the transient gas flow and steady- state power flow are combined to formulate the dynamic....... Simulation on the test case illustrates the success of the modelling and the beneficial roles of the power-to-gas are analyzed. The proposed model can be used in the decision support for both planning and operation of the coordinated natural gas and electrical power systems....... optimal energy flow in the integrated gas and power systems. With proper assumptions and simplifications, the problem is transformed into a single stage linear programming. And only a single stage linear programming is needed to obtain the optimal operation strategy for both gas and power systems...

  14. Modelling of Hot Water Storage Tank for Electric Grid Integration and Demand Response Control

    DEFF Research Database (Denmark)

    Sinha, Rakesh; Bak-Jensen, Birgitte; Pillai, Jayakrishnan Radhakrishna

    2017-01-01

    boilers for grid integration are investigated: single mass model (with uniform temperature inside tank) and two mass model (with ideal single stratified layers). In order to investigate the influence of demand response and grid voltage quality with the measurable parameter of electrical boiler in practice......, selection of a proper model is equally important. The results obtained from comparison of two models (when input to the model is thermal energy demand) are present with their significance and advantages for grid integration and demand response. Models mathematics are shown in detail with the validation...

  15. Integrated development environment based on resource library for intelligent opto-electric instruments

    Science.gov (United States)

    Cen, Ming; Wang, Ping; Liu, Xingfa; Jiang, Jianchun; Zhang, Kaibi

    2009-05-01

    Intelligent opto-electric instruments are synthetically products that are involved with optics, mechanics and electronics. An effective development platform is necessary for efficient development. According to the conception of integrated development and manufacture, an architecture of integrated development environment based on resource library and resource management is presented to resolve the shortcoming of weak reusability and portability of resource, long periods of development and weak openness of existing platform. The development environment provides a suite of standard resource integration and management interface to integrate and regulate existing models, algorithms, tools and components. Then reusable typical resource library is established by adding third party resource that accords with the interface defined. Resources in library are expressed as reusable components. System modeling, rapid prototype developing and online simulating and testing can be implemented rapidly and reliably by utilizing corresponding resources in library, so technique difficulty and development periods can be reduced, and development efficiency is improved. Because of describing resource by metadata and XML, the architecture is flexible and open, and can be improved continuously to adapt to development and upgrade of various intelligent opto-electric instrument to meet the requirement of efficient integrated development and manufacture perfectly.

  16. The integration of renewable energies into the electricity systems of North Africa

    Energy Technology Data Exchange (ETDEWEB)

    Brand, Bernhard

    2015-11-01

    How can renewable energy sources be efficiently integrated into the North African electricity systems? By using techno-economic modeling methods, this book explores optimized electricity system expansion pathways until the year 2030 for the five North African countries - Morocco, Algeria, Tunisia, Libya and Egypt. The results indicate that renewable energy integration is actually a viable business case for the entire region, if wind and solar capacities are properly planned in conjunction with the conventional generation system and under consideration of the country-specific electricity supply-/demand patterns. Further aspects featured in this publication are the impact of renewable power on the transnational electricity transmission system and the question how decision making processes about renewable energy strategies can be improved in the North African context. The book is a contribution to the scientific literature about energy issues in the Middle East and North Africa (MENA), but also seeks to address political and industrial practitioners concerned with the development of the region's renewable energy future.

  17. Electre III method in assessment of variants of integrated urban public transport system in Cracow

    Directory of Open Access Journals (Sweden)

    Katarzyna SOLECKA

    2014-12-01

    Full Text Available There is a lot of methods which are currently used for assessment of urban public transport system development and operation e.g. economic analysis, mostly Cost-Benefit Analysis – CBA, Cost-Effectiveness Analysis - CEA, hybrid methods, measurement methods (survey e.g. among passengers and measurement of traffic volume, vehicles capacity etc., and multicriteria decision aiding methods (multicriteria analysis. The main aim of multicriteria analysis is the choice of the most desirable solution from among alternative variants according to different criteria which are difficult to compare against one another. There are several multicriteria methods for assessment of urban public transport system development and operation, e.g. AHP, ANP, Electre, Promethee, Oreste. The paper presents an application of one of the most popular variant ranking methods – Electre III method. The algorithm of Electre III method usage is presented in detail and then its application for assessment of variants of urban public transport system integration in Cracow is shown. The final ranking of eight variants of integration of urban public transport system in Cracow (from the best to the worst variant was drawn up with the application of the Electre III method. For assessment purposes 10 criteria were adopted: economical, technical, environmental, and social; they form a consistent criteria family. The problem was analyzed with taking into account different points of view: city authorities, public transport operators, city units responsible for transport management, passengers and others users. Separate models of preferences for all stakeholders were created.

  18. A Survey of Xenon Ion Sputter Yield Data and Fits Relevant to Electric Propulsion Spacecraft Integration

    Science.gov (United States)

    Yim, John T.

    2017-01-01

    A survey of low energy xenon ion impact sputter yields was conducted to provide a more coherent baseline set of sputter yield data and accompanying fits for electric propulsion integration. Data uncertainties are discussed and different available curve fit formulas are assessed for their general suitability. A Bayesian parameter fitting approach is used with a Markov chain Monte Carlo method to provide estimates for the fitting parameters while characterizing the uncertainties for the resulting yield curves.

  19. Integrated genomics and proteomics of the Torpedo californica electric organ: concordance with the mammalian neuromuscular junction

    Directory of Open Access Journals (Sweden)

    Mate Suzanne E

    2011-05-01

    Full Text Available Abstract Background During development, the branchial mesoderm of Torpedo californica transdifferentiates into an electric organ capable of generating high voltage discharges to stun fish. The organ contains a high density of cholinergic synapses and has served as a biochemical model for the membrane specialization of myofibers, the neuromuscular junction (NMJ. We studied the genome and proteome of the electric organ to gain insight into its composition, to determine if there is concordance with skeletal muscle and the NMJ, and to identify novel synaptic proteins. Results Of 435 proteins identified, 300 mapped to Torpedo cDNA sequences with ≥2 peptides. We identified 14 uncharacterized proteins in the electric organ that are known to play a role in acetylcholine receptor clustering or signal transduction. In addition, two human open reading frames, C1orf123 and C6orf130, showed high sequence similarity to electric organ proteins. Our profile lists several proteins that are highly expressed in skeletal muscle or are muscle specific. Synaptic proteins such as acetylcholinesterase, acetylcholine receptor subunits, and rapsyn were present in the electric organ proteome but absent in the skeletal muscle proteome. Conclusions Our integrated genomic and proteomic analysis supports research describing a muscle-like profile of the organ. We show that it is a repository of NMJ proteins but we present limitations on its use as a comprehensive model of the NMJ. Finally, we identified several proteins that may become candidates for signaling proteins not previously characterized as components of the NMJ.

  20. Integrated genomics and proteomics of the Torpedo californica electric organ: concordance with the mammalian neuromuscular junction

    Science.gov (United States)

    2011-01-01

    Background During development, the branchial mesoderm of Torpedo californica transdifferentiates into an electric organ capable of generating high voltage discharges to stun fish. The organ contains a high density of cholinergic synapses and has served as a biochemical model for the membrane specialization of myofibers, the neuromuscular junction (NMJ). We studied the genome and proteome of the electric organ to gain insight into its composition, to determine if there is concordance with skeletal muscle and the NMJ, and to identify novel synaptic proteins. Results Of 435 proteins identified, 300 mapped to Torpedo cDNA sequences with ≥2 peptides. We identified 14 uncharacterized proteins in the electric organ that are known to play a role in acetylcholine receptor clustering or signal transduction. In addition, two human open reading frames, C1orf123 and C6orf130, showed high sequence similarity to electric organ proteins. Our profile lists several proteins that are highly expressed in skeletal muscle or are muscle specific. Synaptic proteins such as acetylcholinesterase, acetylcholine receptor subunits, and rapsyn were present in the electric organ proteome but absent in the skeletal muscle proteome. Conclusions Our integrated genomic and proteomic analysis supports research describing a muscle-like profile of the organ. We show that it is a repository of NMJ proteins but we present limitations on its use as a comprehensive model of the NMJ. Finally, we identified several proteins that may become candidates for signaling proteins not previously characterized as components of the NMJ. PMID:21798097

  1. INTEGRAL INDEX OF OPERATION QUALITY FOR EVALUATION OF IMPACT OF DISTRIBUTIVE GENERATION SOURCES ON ELECTRIC NETWORK MODES

    Directory of Open Access Journals (Sweden)

    Petro D. Lezhniuk

    2017-06-01

    Full Text Available Method of operation quality evaluation of electric network, comprising renewable sources of energy (RSE is considered. Integral index that enables to evaluate the impact of RSE on energy losses and its quality as well as balance reliability in electric network is suggested. Mathematical model is constructed, taking into account the assumption that electric network with RSE may be in various operation modes, characterized by different technical economic indices. To determine the integral index of operation quality of electric network with RSE in all possible states tools of Markov processes theory and criterial method are used.

  2. Measuring international electricity integration: a comparative study of the power systems under the Nordic Council, MERCOSUR, and NAFTA

    Energy Technology Data Exchange (ETDEWEB)

    Pineau, P.-O. E-mail: ppineau@uvic.ca; Hira, Anil E-mail: ahira@sfu.ca; Froschauer, Karl E-mail: froschau@sfu.ca

    2004-09-01

    Many regions of the world feel the pressure to interconnect electric power systems internationally. Regional integrations of the electricity sector have become part of free trade and common market initiatives, though the steps individual national jurisdictions take towards developing integrated systems vary. In this article, we review three regions concerned with common market initiatives and at different stages of integration processes that involve infrastructural, regulatory, and commercial decisions. First, we examine the North European countries in the Nordic Council, then countries in the Southern Cone of South America in MERCOSUR, and finally Mexico, the United States and Canada, linked under NAFTA. This comparative study highlights the potential, but also the many hurdles, that electricity sector integrations face. The study suggests a framework for measuring the level of electricity sector integration that could be applied to other regions.

  3. Multidisciplinary group performance – measuring integration intensity in the context of the North West London Integrated Care Pilot

    Directory of Open Access Journals (Sweden)

    Matthew Harris

    2013-02-01

    Full Text Available Introduction: Multidisciplinary Group meeting (MDGs are seen as key facilitators of integration, moving from individual to multi-disciplinary decision making, and from a focus on individual patients to a focus on patient groups.  We have developed a method for coding MDG transcripts to identify whether they are or are not vehicles for delivering the anticipated efficiency improvements across various providers and apply it to a test case in the North West London Integrated Care Pilot.  Methods:  We defined 'integrating' as the process within the MDG meeting that enables or promotes an improved collaboration, improved understanding, and improved awareness of self and others within the local healthcare economy such that efficiency improvements could be identified and action taken.  Utterances within the MDGs are coded according to three distinct domains grounded in concepts from communication, group decision-making, and integrated care literatures - the Valence, the Focus, and the Level.  Standardized weighted integrative intensity scores are calculated across ten time deciles in the Case Discussion providing a graphical representation of its integrative intensity. Results: Intra- and Inter-rater reliability of the coding scheme was very good as measured by the Prevalence and Bias-adjusted Kappa Score.  Standardized Weighted Integrative Intensity graph mirrored closely the verbatim transcript and is a convenient representation of complex communication dynamics. Trend in integrative intensity can be calculated and the characteristics of the MDG can be pragmatically described. Conclusion: This is a novel and potentially useful method for researchers, managers and practitioners to better understand MDG dynamics and to identify whether participants are integrating.  The degree to which participants use MDG meetings to develop an integrated way of working is likely to require management, leadership and shared values.

  4. Multidisciplinary group performance – measuring integration intensity in the context of the North West London Integrated Care Pilot

    Directory of Open Access Journals (Sweden)

    Matthew Harris

    2013-02-01

    Full Text Available Introduction: Multidisciplinary Group meeting (MDGs are seen as key facilitators of integration, moving from individual to multi-disciplinary decision making, and from a focus on individual patients to a focus on patient groups.  We have developed a method for coding MDG transcripts to identify whether they are or are not vehicles for delivering the anticipated efficiency improvements across various providers and apply it to a test case in the North West London Integrated Care Pilot. Methods:  We defined 'integrating' as the process within the MDG meeting that enables or promotes an improved collaboration, improved understanding, and improved awareness of self and others within the local healthcare economy such that efficiency improvements could be identified and action taken.  Utterances within the MDGs are coded according to three distinct domains grounded in concepts from communication, group decision-making, and integrated care literatures - the Valence, the Focus, and the Level.  Standardized weighted integrative intensity scores are calculated across ten time deciles in the Case Discussion providing a graphical representation of its integrative intensity.Results: Intra- and Inter-rater reliability of the coding scheme was very good as measured by the Prevalence and Bias-adjusted Kappa Score.  Standardized Weighted Integrative Intensity graph mirrored closely the verbatim transcript and is a convenient representation of complex communication dynamics. Trend in integrative intensity can be calculated and the characteristics of the MDG can be pragmatically described.Conclusion: This is a novel and potentially useful method for researchers, managers and practitioners to better understand MDG dynamics and to identify whether participants are integrating.  The degree to which participants use MDG meetings to develop an integrated way of working is likely to require management, leadership and shared values.

  5. Integrative assessment of kick boxers’ brain blood circulation and bio-electrical activity in conditions of correction technologies’ application

    Directory of Open Access Journals (Sweden)

    Romanov Y.N.

    2016-06-01

    Full Text Available Purpose: to scientifically substantiate the role of para-vertebral impacts on blood circulation and bio-electrical activity of kick boxers’ cortex. Material: in the research participated kick boxers (main group, n=62 and university students (control group, n=25 of 18-23 years’ age. Assessment of para-vertebral impacts with device Armos and classic massage was fulfilled with the help of the following methodic: trans-cranial dopplerography of head main arteries and cortex EEG of the tested. Results: it was found that with the help of para-vertebral impacts by device Armos linear velocity of cerebral blood flow reduces to normal limits and in- and inter-hemispheres’ interaction strength increases. Conclusions: para-vertebral impacts by device Armos activate integrative processes and inter-hemispheres’ interactions of different cortex areas of kick boxers. It can witness about better formation of functional systems, ensuring sports efficiency.

  6. Influencing Factors and Development Trend Analysis of China Electric Grid Investment Demand Based on a Panel Co-Integration Model

    Directory of Open Access Journals (Sweden)

    Jinchao Li

    2018-01-01

    Full Text Available Electric grid investment demand analysis is significant to reasonably arranging construction funds for the electric grid and reduce costs. This paper used the panel data of electric grid investment from 23 provinces of China between 2004 and 2016 as samples to analyze the influence between electric grid investment demand and GDP, population scale, social electricity consumption, installed electrical capacity, and peak load based on co-integration tests. We find that GDP and peak load have positive influences on electric grid investment demand, but the impact of population scale, social electricity consumption, and installed electrical capacity on electric grid investment is not remarkable. We divide different regions in China into the eastern region, central region, and western region to analyze influence factors of electric grid investment, finally obtaining key factors in the eastern, central, and western regions. In the end, according to the analysis of key factors, we make a prediction about China’s electric grid investment for 2020 in different scenarios. The results offer a certain understanding for the development trend of China’s electric grid investment and contribute to the future development of electric grid investment.

  7. Electric properties and fabrication of IMI-O LB films containing the imidazole group

    CERN Document Server

    Yoo, S Y; Kwon, Y S; Park, J C

    1999-01-01

    We fabricated an IMI-O polymer containing an imidazole group that could form a complex structure between the monolayer and the metal ions at the air-water interface. Also, the monolayer behavior at the air-water interface and the electrical properties of metal-complexed Langmuir-Blodgett (LB) films were investigated by using Brewster angle microscopy (BAM) and current-voltage(I-V) measurements. The difference in the BAM images between the pure water and the aqueous metal ions is attributed to the interactions of the copolymers with the metal ions at the interface and the consequent change of the monolayer organization. In the I-V characteristics, the current for LB films with different metal ion depended on the quantity of the metal-ion complexed with the LB film due to the interaction between the metal ion and the IMI-O polymer.

  8. Integrated Combined Heat and Power System Dispatch Considering Electrical and Thermal Energy Storage

    Directory of Open Access Journals (Sweden)

    Rongxiang Yuan

    2016-06-01

    Full Text Available Wind power has achieved great development in Northern China, but abundant wind power is dissipated, rather than utilized, due to inflexible electricity production of combined heat and power (CHP units. In this paper, an integrated CHP system consisting of CHP units, wind power plants, and condensing power plants is investigated to decouple the power and heat production on both the power supply side and heat supply side, by incorporating electrical energy storage (EES and thermal energy storage (TES. Then the integrated CHP system dispatch (ICHPSD model is formulated to reach the target of reducing wind power curtailment and primary energy consumption. Finally, the feasibility and effectiveness of the proposed ICHPSD model are verified by the six-bus system, and the simulation results show that EES has a better effect on wind power integration than TES. The annual net benefits by incorporating EES and TES increase with increasing wind penetration, but they gradually approach saturation. Introducing both EES and TES can largely increase the amount of wind power integration and improve the operation efficiency of the system.

  9. An Extended Decomposed Theory of Planned Behaviour to Predict the Usage Intention of the Electric Car: A Multi-Group Comparison

    Directory of Open Access Journals (Sweden)

    Ingrid Moons

    2015-05-01

    Full Text Available An Extended Decomposed Theory of Planned Behaviour (DTPB is developed that integrates emotions towards car driving and electric cars as well as car driving habits of the DTPB, and is empirically validated in a Belgian sample (n = 1023. Multi-group comparisons explore how the determinants of usage intention are different between groups of consumers differing in environmentally-friendly behaviour, environmental concern, innovativeness and personal values. Besides attitudes, media, perceived complexity, compatibility and relative advantage, emotions towards the electric car and reflective emotions towards car driving have a strong effect on usage intention. Car driving habits and perceived behavioural control (facilitators and constraints do not substantially affect usage intention. Only people differing in personal values show a different motivational structure for a number of important drivers of usage intention.

  10. An integrated assessment of electric power resource options in the US Virgin Islands

    Energy Technology Data Exchange (ETDEWEB)

    Hill, L.J. [Oak Ridge National Lab., TN (United States); Chronowski, R.A. [Alternative Energy Development, Inc., Silver Springs, MD (United States); Shapiro, A.M. [Vermont Energy Investment Corp., Burlington, VT (United States)

    1994-02-01

    As with other island-based, insular power systems, the avoided cost of power for the Water and Power Authority (WAPA) of the US Virgin Islands (USVI) is high relative to that of US mainland electric utilities. First, the need to produce potable water requires that WAPA`s electric generating system operate at efficiency levels lower than would result in the absence of the need to jointly produce water and power. Second, the inability to purchase power from neighboring utilities necessitates higher reserve margins. These two operating conditions suggest that integrated resource planning (IRP) should be especially attractive to WAPA. IRP is a planning paradigm that gives electric utilities more options to choose from when making resource selections and, therefore, generally results in lower costs. Utilities look to the demand side as a source of resources--i.e., demand side management (DSM)--in this planning process. They then select the least-cost mix of resource options. In this study, we take the first steps toward implementing an IRP process in the USVI. Using its existing resource base and the supply and DSM options that it has in the future, we simulated WAPA`s resource selection process over a 20-year planning horizon using SafePlan, an IRP planning model. The results suggest that WAPA can significantly reduce its cost of providing electricity by implementing DSM programs. The cost of generating electricity and the amount of kWh needed can be reduced nearly nine percent by implementing cost-effective DSM programs. Cost and kWh savings are greater under less favorable assumptions about (1) the input costs for generating electricity and (2) other conditions that WAPA will confront in the future. The results also indicate that DSM programs targeted at the residential sector can save, 500 gallons of water annually for participants in the program.

  11. Parallel PWTD-Accelerated Explicit Solution of the Time Domain Electric Field Volume Integral Equation

    KAUST Repository

    Liu, Yang

    2016-03-25

    A parallel plane-wave time-domain (PWTD)-accelerated explicit marching-on-in-time (MOT) scheme for solving the time domain electric field volume integral equation (TD-EFVIE) is presented. The proposed scheme leverages pulse functions and Lagrange polynomials to spatially and temporally discretize the electric flux density induced throughout the scatterers, and a finite difference scheme to compute the electric fields from the Hertz electric vector potentials radiated by the flux density. The flux density is explicitly updated during time marching by a predictor-corrector (PC) scheme and the vector potentials are efficiently computed by a scalar PWTD scheme. The memory requirement and computational complexity of the resulting explicit PWTD-PC-EFVIE solver scale as ( log ) s s O N N and ( ) s t O N N , respectively. Here, s N is the number of spatial basis functions and t N is the number of time steps. A scalable parallelization of the proposed MOT scheme on distributed- memory CPU clusters is described. The efficiency, accuracy, and applicability of the resulting (parallelized) PWTD-PC-EFVIE solver are demonstrated via its application to the analysis of transient electromagnetic wave interactions on canonical and real-life scatterers represented with up to 25 million spatial discretization elements.

  12. The Integration of Electrical Signals Originating in the Root of Vascular Plants

    Directory of Open Access Journals (Sweden)

    Javier Canales

    2018-01-01

    Full Text Available Plants have developed different signaling systems allowing for the integration of environmental cues to coordinate molecular processes associated to both early development and the physiology of the adult plant. Research on systemic signaling in plants has traditionally focused on the role of phytohormones as long-distance signaling molecules, and more recently the importance of peptides and miRNAs in building up this communication process has also been described. However, it is well-known that plants have the ability to generate different types of long-range electrical signals in response to different stimuli such as light, temperature variations, wounding, salt stress, or gravitropic stimulation. Presently, it is unclear whether short or long-distance electrical communication in plants is linked to nutrient uptake. This review deals with aspects of sensory input in plant roots and the propagation of discrete signals to the plant body. We discuss the physiological role of electrical signaling in nutrient uptake and how nutrient variations may become an electrical signal propagating along the plant.

  13. A Cost-effective and Emission-aware Power Management System for Ships with Integrated Full Electric Propulsion

    OpenAIRE

    Kanellos, Fotis D.; Anvari-Moghaddam, Amjad; Josep M. Guerrero

    2017-01-01

    The extensive exploitation of electric power in ships enables the development of more efficient and environmentally friendlier ships, as it allows for a more flexible ship power system operation and configuration. In this paper, an optimal power management method for ship electric power systems comprising integrated full electric propulsion, energy storage and shore power supply facility is proposed. The proposed optimization method is exploiting an interactive approach based on particle swar...

  14. Financial Measures for Electric Vehicles:Supporting the Integration of Renewable Energy in the Mobility Sector in Germany

    OpenAIRE

    Bickert, Stefan

    2014-01-01

    Electric vehicles (EV) are able to support the transition of sectors towards sustainability. The operation of these vehicles with renewable energies saves local and global emissions. Furthermore, fluctuating renewable energies can be integrated in existing energy systems by using electric vehicles for grid services. Thus, implementation of advantages requires market establishment of electric vehicles. The article provides a review on potentials of market development by comparing and studying ...

  15. Linking Integration and Housing Career: A Longitudinal Analysis of Immigrant Groups in Sweden

    OpenAIRE

    Turner, Lena Magnusson; Hedman, Lina

    2014-01-01

    ABSTRACT This study investigates the extent to which immigrant groups are integrated in the Stockholm region through an analysis of their housing careers. Housing conditions are linked to many important life course events, as well as to the resources and preferences of each individual family. Housing conditions influence integration, but factors related to integration can also be a cause of housing conditions. In the study, we take a truly longitudinal approach to housing careers by exploring...

  16. Solar Electric Propulsion System Integration Technology (SEPSIT). Volume 2: Encke rendezvous mission and space vehicle functional description

    Science.gov (United States)

    Gardner, J. A.

    1972-01-01

    A solar electric propulsion system integration technology study is discussed. Detailed analyses in support of the solar electric propulsion module were performed. The thrust subsystem functional description is presented. The space vehicle and the space mission to which the propulsion system is applied are analyzed.

  17. System and method for integration of renewable energy and fuel cell for the production of electricity and hydrogen

    NARCIS (Netherlands)

    Hemmes, K.

    The invention relates to a system and method for integrating renewable energy and a fuel cell for the production of electricity and hydrogen, wherein this comprises the use of renewable energy as fluctuating energy source for the production of electricity and also comprises the use of at least one

  18. System and method for integration of renewable energy and fuel cell for the production of electricity and hydrogen

    NARCIS (Netherlands)

    Hemmes, K.

    2007-01-01

    The invention relates to a system and method for integrating renewable energy and a fuel cell for the production of electricity and hydrogen, wherein this comprises the use of renewable energy as fluctuating energy source for the production of electricity and also comprises the use of at least one

  19. A Cooperative Learning Group Procedure for Improving CTE and Science Integration

    Science.gov (United States)

    Spindler, Matt

    2016-01-01

    The purpose of this case study was to create information about the employment of Cooperative Learning Groups (CLG) to enhance the science integrating learning objectives utilized in secondary CTE courses. The objectives of the study were to determine if CLGs were an effective means for increasing the number of: a) science integrating learning…

  20. Nuclear Electric Vehicle Optimization Toolset (NEVOT): Integrated System Design Using Genetic Algorithms

    Science.gov (United States)

    Tinker, Michael L.; Steincamp, James W.; Stewart, Eric T.; Patton, Bruce W.; Pannell, William P.; Newby, Ronald L.; Coffman, Mark E.; Qualls, A. L.; Bancroft, S.; Molvik, Greg

    2003-01-01

    The Nuclear Electric Vehicle Optimization Toolset (NEVOT) optimizes the design of all major Nuclear Electric Propulsion (NEP) vehicle subsystems for a defined mission within constraints and optimization parameters chosen by a user. The tool uses a Genetic Algorithm (GA) search technique to combine subsystem designs and evaluate the fitness of the integrated design to fulfill a mission. The fitness of an individual is used within the GA to determine its probability of survival through successive generations in which the designs with low fitness are eliminated and replaced with combinations or mutations of designs with higher fitness. The program can find optimal solutions for different sets of fitness metrics without modification and can create and evaluate vehicle designs that might never be conceived of through traditional design techniques. It is anticipated that the flexible optimization methodology will expand present knowledge of the design trade-offs inherent in designing nuclear powered space vehicles and lead to improved NEP designs.

  1. Integrated Safety Program for the Nuclear Electric Propulsion Space Test Program

    Science.gov (United States)

    Marshall, Albert C.; Mehlman, William F.; Kompanietz, G.

    1994-07-01

    The Nuclear Electric Propulsion Space Test Program (NEPSTP) is sponsored by the Ballistic Missile Defense Office (BMDO) to demonstrate and evaluate the Russian-built TOPAZ II nuclear reactor as a power source for an electric propulsion system in space. From its inception, safety has been a central feature of the NEPSTP program. This paper addresses the work done to define the safety organizational relationships, responsibilities, management, engineering requirements, and documentation to assure an integrated safety program that coordinates the various safety activities in Mission Safety, Range Safety and Nuclear Safety. Because the United States has not launched a nuclear reactor since 1965, much of the focus of the safety program has been directed toward the unique safety considerations of using a nuclear reactor in space. Our preliminary findings indicate that the safe use of the TOPAZ II for the NEPSTP space mission is feasible.

  2. analysis of large electromagnetic pulse simulators using the electric field integral equation method in time domain

    CERN Document Server

    Jamali, J; Moini, R; Sadeghi, H

    2002-01-01

    A time-domain approach is presented to calculate electromagnetic fields inside a large Electromagnetic Pulse (EMP) simulator. This type of EMP simulator is used for studying the effect of electromagnetic pulses on electrical apparatus in various structures such as vehicles, a reoplanes, etc. The simulator consists of three planar transmission lines. To solve the problem, we first model the metallic structure of the simulator as a grid of conducting wires. The numerical solution of the governing electric field integral equation is then obtained using the method of moments in time domain. To demonstrate the accuracy of the model, we consider a typical EMP simulator. The comparison of our results with those obtained experimentally in the literature validates the model introduced in this paper.

  3. Review of DC System Technologies for Large Scale Integration of Wind Energy Systems with Electricity Grids

    Directory of Open Access Journals (Sweden)

    Sheng Jie Shao

    2010-06-01

    Full Text Available The ever increasing development and availability of power electronic systems is the underpinning technology that enables large scale integration of wind generation plants with the electricity grid. As the size and power capacity of the wind turbine continues to increase, so is the need to place these significantly large structures at off-shore locations. DC grids and associated power transmission technologies provide opportunities for cost reduction and electricity grid impact minimization as the bulk power is concentrated at single point of entry. As a result, planning, optimization and impact can be studied and carefully controlled minimizing the risk of the investment as well as power system stability issues. This paper discusses the key technologies associated with DC grids for offshore wind farm applications.

  4. Integrated Fault Diagnosis Algorithm for Motor Sensors of In-Wheel Independent Drive Electric Vehicles

    Science.gov (United States)

    Jeon, Namju; Lee, Hyeongcheol

    2016-01-01

    An integrated fault-diagnosis algorithm for a motor sensor of in-wheel independent drive electric vehicles is presented. This paper proposes a method that integrates the high- and low-level fault diagnoses to improve the robustness and performance of the system. For the high-level fault diagnosis of vehicle dynamics, a planar two-track non-linear model is first selected, and the longitudinal and lateral forces are calculated. To ensure redundancy of the system, correlation between the sensor and residual in the vehicle dynamics is analyzed to detect and separate the fault of the drive motor system of each wheel. To diagnose the motor system for low-level faults, the state equation of an interior permanent magnet synchronous motor is developed, and a parity equation is used to diagnose the fault of the electric current and position sensors. The validity of the high-level fault-diagnosis algorithm is verified using Carsim and Matlab/Simulink co-simulation. The low-level fault diagnosis is verified through Matlab/Simulink simulation and experiments. Finally, according to the residuals of the high- and low-level fault diagnoses, fault-detection flags are defined. On the basis of this information, an integrated fault-diagnosis strategy is proposed. PMID:27973431

  5. Integrated Fault Diagnosis Algorithm for Motor Sensors of In-Wheel Independent Drive Electric Vehicles

    Directory of Open Access Journals (Sweden)

    Namju Jeon

    2016-12-01

    Full Text Available An integrated fault-diagnosis algorithm for a motor sensor of in-wheel independent drive electric vehicles is presented. This paper proposes a method that integrates the high- and low-level fault diagnoses to improve the robustness and performance of the system. For the high-level fault diagnosis of vehicle dynamics, a planar two-track non-linear model is first selected, and the longitudinal and lateral forces are calculated. To ensure redundancy of the system, correlation between the sensor and residual in the vehicle dynamics is analyzed to detect and separate the fault of the drive motor system of each wheel. To diagnose the motor system for low-level faults, the state equation of an interior permanent magnet synchronous motor is developed, and a parity equation is used to diagnose the fault of the electric current and position sensors. The validity of the high-level fault-diagnosis algorithm is verified using Carsim and Matlab/Simulink co-simulation. The low-level fault diagnosis is verified through Matlab/Simulink simulation and experiments. Finally, according to the residuals of the high- and low-level fault diagnoses, fault-detection flags are defined. On the basis of this information, an integrated fault-diagnosis strategy is proposed.

  6. Integrated Fault Diagnosis Algorithm for Motor Sensors of In-Wheel Independent Drive Electric Vehicles.

    Science.gov (United States)

    Jeon, Namju; Lee, Hyeongcheol

    2016-12-12

    An integrated fault-diagnosis algorithm for a motor sensor of in-wheel independent drive electric vehicles is presented. This paper proposes a method that integrates the high- and low-level fault diagnoses to improve the robustness and performance of the system. For the high-level fault diagnosis of vehicle dynamics, a planar two-track non-linear model is first selected, and the longitudinal and lateral forces are calculated. To ensure redundancy of the system, correlation between the sensor and residual in the vehicle dynamics is analyzed to detect and separate the fault of the drive motor system of each wheel. To diagnose the motor system for low-level faults, the state equation of an interior permanent magnet synchronous motor is developed, and a parity equation is used to diagnose the fault of the electric current and position sensors. The validity of the high-level fault-diagnosis algorithm is verified using Carsim and Matlab/Simulink co-simulation. The low-level fault diagnosis is verified through Matlab/Simulink simulation and experiments. Finally, according to the residuals of the high- and low-level fault diagnoses, fault-detection flags are defined. On the basis of this information, an integrated fault-diagnosis strategy is proposed.

  7. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, J.; Bird, L.; Heeter, J.; Arent, D. A.

    2012-04-01

    Many countries -- reflecting very different geographies, markets, and power systems -- are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This study documents the diverse approaches to effective integration of variable renewable energy among six countries -- Australia (South Australia), Denmark, Germany, Ireland, Spain, and the United States (Western region-Colorado and Texas)-- and summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. Each country has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. The ability to maintain a broad ecosystem perspective, to organize and make available the wealth of experiences, and to ensure a clear path from analysis to enactment should be the primary focus going forward.

  8. System Identification and Integration Design of an Air/Electric Motor

    Directory of Open Access Journals (Sweden)

    Shih-Yao Huang

    2013-02-01

    Full Text Available This paper presents an integration design and implementation of an air motor and a DC servo motor which utilizes a magnetic powder brake to integrate these two motors together. The dynamic model of the air/electric hybrid system will be derived and eventually leads to successful ECE-40 driving cycle tests with a FPGA-based speed controller. The testing results obtained by using the proposed experimental platform indicate that the total air consumption is about 256 L under air motor mode and the electric charge consumption is about 530 coulombs under DC servo motor mode. In a hybrid mode, the current reduction of the battery is about 18.5%, and then the service life of the battery can be improved. Furthermore, a prototype is built with a proportional-integral (PI speed controller based on a field-programmable gate array (FPGA in order to facilitate the entire analysis of the velocity switch experiment. Through the modular methodology of FPGA, the hybrid power platform can successfully operate under ECE-40 driving cycle with the PI speed controller. The experimental data shows that the chattering ranges of the air motor within ±1 km/h and ±0.2 km/h under DC servo motor drive. Therefore, the PI speed controller based on FPGA is successfully actualized.

  9. The Integrated Nordic End-User Electricity Market - Feasibility and identified obstacles

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-02-15

    The report identifies the various obstacles that currently exist which prevent the formation of a truly integrated Nordic electricity end-user market. The obstacles have been divided into three categories: technical, regulatory and commercial. NordREG proposes that to further integrate the Nordic end-user electricity markets, a number of differences of technical, legal and market nature ought to be gradually harmonized in order to facilitate market entry and cross-border trade. Technical obstacles: Especially the following problems related to the data and metering systems should be solved: Transferred messages, information and message timing should be harmonised; Message format should be decided; A common data transmission protocol should be specified. New solutions like web-based solutions should be studied; The identification of the final customers' metering point should be harmonised. Regulatory obstacles: The identified regulatory obstacles relate to three areas, namely the division of tasks between monopoly and competitive activities, the operation and duties of distribution network operators including how these are regulated, and the legal framework to provide protection for small end users. On the basis of the review of regulatory obstacles, the following recommendations are made: The principles of neutrality and the way these principles are being supervised by the regulator is a key issue to improve the functioning of the Nordic end-user market. Regulators should seek to harmonise regulation on neutrality and put it high on the agenda in a forthcoming process of market integration; The procedures for switching supplier should be as smooth, easy and quick as possible. It is also important that suppliers, especially the new market entrants, can participate in reliable, transparent and fluent switching practices, since this lowers the threshold for entering other than domestic electricity market. The switching model should be harmonised for the Nordic end

  10. Integration of Carbon Nanotubes in Microsystems: Local Growth and Electrical Properties of Contacts

    Science.gov (United States)

    Haugen, Tormod B.; Ta, Bao Q.; Halvorsen, Einar; Hoivik, Nils; Aasmundtveit, Knut E.

    2013-01-01

    Carbon nanotubes (CNTs) have been directly grown onto a silicon microsystem by a local synthesis method. This method has potential for wafer-level complimentary metal-oxide-semiconductor (CMOS) transistor-compatible integration of CNTs into more complex Si microsystems; enabling, e.g., gas sensors at low cost. In this work, we demonstrate that the characteristics of CNTs grown on specific locations can be changed by tuning the synthesis conditions. We also investigate the role of the contact between CNTs and the Si microsystem; observing a large influence on the electrical characteristics of our devices. Different contact modes can render either an ohmic or Schottky-like rectifying characteristics. PMID:28811424

  11. Lightweight Integrated Solar Array and Transceiver. [Improving Electrical Power and Communication Capabilities in Small Spacecraft

    Science.gov (United States)

    Carr, John; Martinez, Andres; Petro, Andrew

    2015-01-01

    The Lightweight Integrated Solar Array and Transceiver (LISA-T) project will leverage several existing and on-going efforts at Marshall Space Flight Center (MSFC) for the design, development, fabrication, and test of a launch stowed, orbit deployed structure on which thin-film photovoltaics for power generation and antenna elements for communication, are embedded. Photovoltaics is a method for converting solar energy into electricity using semiconductor materials. The system will provide higher power generation with a lower mass, smaller stowage volume, and lower cost than the state of the art solar arrays, while simultaneously enabling deployable antenna concepts.

  12. Multi-parameter monitoring of electrical machines using integrated fibre Bragg gratings

    Science.gov (United States)

    Fabian, Matthias; Hind, David; Gerada, Chris; Sun, Tong; Grattan, Kenneth T. V.

    2017-04-01

    In this paper a sensor system for multi-parameter electrical machine condition monitoring is reported. The proposed FBG-based system allows for the simultaneous monitoring of machine vibration, rotor speed and position, torque, spinning direction, temperature distribution along the stator windings and on the rotor surface as well as the stator wave frequency. This all-optical sensing solution reduces the component count of conventional sensor systems, i.e., all 48 sensing elements are contained within the machine operated by a single sensing interrogation unit. In this work, the sensing system has been successfully integrated into and tested on a permanent magnet motor prototype.

  13. Impact Study of Electric Vehicle (EV) Integration on Medium Voltage (MV) Grids

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Nielsen, Arne Hejde; Østergaard, Jacob

    2011-01-01

    The impact study of electric vehicle (EV) grid integration on medium voltage (MV) grids was carried out to quantify the power component loading and voltage profile change in MV grids due to the extra demands from the EV charging. Three charging scenarios, dumb charging, time charging and fleet...... operator based charging, were considered in the impact study to assess the impacts of different charging options. In the mean time, different charging power levels were included in the impact study as well. A MV grid from the Bornholm power system was used to implement the case studies....

  14. Depth-enhanced integral imaging display system with electrically variable image planes using polymer-dispersed liquid-crystal layers.

    Science.gov (United States)

    Kim, Yunhee; Choi, Heejin; Kim, Joohwan; Cho, Seong-Woo; Kim, Youngmin; Park, Gilbae; Lee, Byoungho

    2007-06-20

    A depth-enhanced three-dimensional integral imaging system with electrically variable image planes is proposed. For implementing the variable image planes, polymer-dispersed liquid-crystal (PDLC) films and a projector are adopted as a new display system in the integral imaging. Since the transparencies of PDLC films are electrically controllable, we can make each film diffuse the projected light successively with a different depth from the lens array. As a result, the proposed method enables control of the location of image planes electrically and enhances the depth. The principle of the proposed method is described, and experimental results are also presented.

  15. Integration of plug-in hybrid electric vehicles (PHEV) with grid connected residential photovoltaic energy systems

    Science.gov (United States)

    Nagarajan, Adarsh; Shireen, Wajiha

    2013-06-01

    This paper proposes an approach for integrating Plug-In Hybrid Electric Vehicles (PHEV) to an existing residential photovoltaic system, to control and optimize the power consumption of residential load. Control involves determining the source from which residential load will be catered, where as optimization of power flow reduces the stress on the grid. The system built to achieve the goal is a combination of the existing residential photovoltaic system, PHEV, Power Conditioning Unit (PCU), and a controller. The PCU involves two DC-DC Boost Converters and an inverter. This paper emphasizes on developing the controller logic and its implementation in order to accommodate the flexibility and benefits of the proposed integrated system. The proposed controller logic has been simulated using MATLAB SIMULINK and further implemented using Digital Signal Processor (DSP) microcontroller, TMS320F28035, from Texas Instruments

  16. Distributed Energy Systems Integration and Demand Optimization for Autonomous Operations and Electric Grid Transactions

    Energy Technology Data Exchange (ETDEWEB)

    Ghatikar, Girish [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Greenlots, San Francisco, CA (United States); Mashayekh, Salman [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Stadler, Michael [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Center for Energy and Innovation Technologies (Austria); Yin, Rongxin [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Liu, Zhenhua [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

    2015-11-29

    Distributed power systems in the U.S. and globally are evolving to provide reliable and clean energy to consumers. In California, existing regulations require significant increases in renewable generation, as well as identification of customer-side distributed energy resources (DER) controls, communication technologies, and standards for interconnection with the electric grid systems. As DER deployment expands, customer-side DER control and optimization will be critical for system flexibility and demand response (DR) participation, which improves the economic viability of DER systems. Current DER systems integration and communication challenges include leveraging the existing DER and DR technology and systems infrastructure, and enabling optimized cost, energy and carbon choices for customers to deploy interoperable grid transactions and renewable energy systems at scale. Our paper presents a cost-effective solution to these challenges by exploring communication technologies and information models for DER system integration and interoperability. This system uses open standards and optimization models for resource planning based on dynamic-pricing notifications and autonomous operations within various domains of the smart grid energy system. It identifies architectures and customer engagement strategies in dynamic DR pricing transactions to generate feedback information models for load flexibility, load profiles, and participation schedules. The models are tested at a real site in California—Fort Hunter Liggett (FHL). Furthermore, our results for FHL show that the model fits within the existing and new DR business models and networked systems for transactive energy concepts. Integrated energy systems, communication networks, and modeling tools that coordinate supply-side networks and DER will enable electric grid system operators to use DER for grid transactions in an integrated system.

  17. An integrated solution for secure group communication in wide-area networks

    Energy Technology Data Exchange (ETDEWEB)

    Agarwal, Deborah A. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Chevassut, Olivier [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Thompson, Mary [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Tsudik, Gene [Univ. of California, Irvine, CA (United States)

    2001-04-01

    Many distributed applications require a secure reliable group communication system to provide coordination among the application components. This paper describes a secure group layer (SGL) which bundles a reliable group communication system, a group authorization and access control mechanism, and a group key agreement protocol to provide a comprehensive and practical secure group communication platform. SGL also encapsulates the standard message security services (i.e, confidentiality, authenticity and integrity). A number of challenging issues encountered in the design of SGL are brought to light and experimental results obtained with a prototype implementation are discussed.

  18. Table Hopping in the Cafeteria: An Exploration of "Racial" Integration in Early Adolescent Social Groups.

    Science.gov (United States)

    Zisman, Paul; Wilson, Vernon

    1992-01-01

    Qualitative and quantitative studies of a class of 208 urban eighth graders demonstrate that loose-knit peer groups encourage interracial integration, whereas cliques do not. Loose-knit voluntary peer groups created by the social dynamic of cafeteria table hopping provide an opportunity for meaningful cross-race interaction. (SLD)

  19. Disaster Day! Integrating Speech Skills though Impromptu Group Research and Presentation

    Science.gov (United States)

    Pruim, Douglas E.

    2016-01-01

    Courses: Disaster Day (DD) is a single-class activity designed for public speaking classrooms, but could also be applied to courses addressing small group communication. Objectives: DD integrates fundamental skills of the basic speech course, fosters participation through group work, and introduces new concepts and skills. By the end of the…

  20. ESB-based Sensor Web integration for the prediction of electric power supply system vulnerability.

    Science.gov (United States)

    Stoimenov, Leonid; Bogdanovic, Milos; Bogdanovic-Dinic, Sanja

    2013-08-15

    Electric power supply companies increasingly rely on enterprise IT systems to provide them with a comprehensive view of the state of the distribution network. Within a utility-wide network, enterprise IT systems collect data from various metering devices. Such data can be effectively used for the prediction of power supply network vulnerability. The purpose of this paper is to present the Enterprise Service Bus (ESB)-based Sensor Web integration solution that we have developed with the purpose of enabling prediction of power supply network vulnerability, in terms of a prediction of defect probability for a particular network element. We will give an example of its usage and demonstrate our vulnerability prediction model on data collected from two different power supply companies. The proposed solution is an extension of the GinisSense Sensor Web-based architecture for collecting, processing, analyzing, decision making and alerting based on the data received from heterogeneous data sources. In this case, GinisSense has been upgraded to be capable of operating in an ESB environment and combine Sensor Web and GIS technologies to enable prediction of electric power supply system vulnerability. Aside from electrical values, the proposed solution gathers ambient values from additional sensors installed in the existing power supply network infrastructure. GinisSense aggregates gathered data according to an adapted Omnibus data fusion model and applies decision-making logic on the aggregated data. Detected vulnerabilities are visualized to end-users through means of a specialized Web GIS application.

  1. ESB-Based Sensor Web Integration for the Prediction of Electric Power Supply System Vulnerability

    Directory of Open Access Journals (Sweden)

    Milos Bogdanovic

    2013-08-01

    Full Text Available Electric power supply companies increasingly rely on enterprise IT systems to provide them with a comprehensive view of the state of the distribution network. Within a utility-wide network, enterprise IT systems collect data from various metering devices. Such data can be effectively used for the prediction of power supply network vulnerability. The purpose of this paper is to present the Enterprise Service Bus (ESB-based Sensor Web integration solution that we have developed with the purpose of enabling prediction of power supply network vulnerability, in terms of a prediction of defect probability for a particular network element. We will give an example of its usage and demonstrate our vulnerability prediction model on data collected from two different power supply companies. The proposed solution is an extension of the GinisSense Sensor Web-based architecture for collecting, processing, analyzing, decision making and alerting based on the data received from heterogeneous data sources. In this case, GinisSense has been upgraded to be capable of operating in an ESB environment and combine Sensor Web and GIS technologies to enable prediction of electric power supply system vulnerability. Aside from electrical values, the proposed solution gathers ambient values from additional sensors installed in the existing power supply network infrastructure. GinisSense aggregates gathered data according to an adapted Omnibus data fusion model and applies decision-making logic on the aggregated data. Detected vulnerabilities are visualized to end-users through means of a specialized Web GIS application.

  2. Identifying barriers to large-scale integration of variable renewable electricity into the electricity market : A literature review of market design

    NARCIS (Netherlands)

    Hu, J.|info:eu-repo/dai/nl/412681994; Harmsen, R.|info:eu-repo/dai/nl/195454278; Crijns-Graus, Wina|info:eu-repo/dai/nl/308005015; Worrell, E.|info:eu-repo/dai/nl/106856715; van den Broek, M.A.|info:eu-repo/dai/nl/092946895

    For reaching the 2 °C climate target, the robust growth of electricity generation from variable renewable energy sources (VRE) in the power sector is expected to continue. Accommodation of the power system to the variable, uncertain and locational-dependent outputs of VRE causes integration costs.

  3. Integrating Variable Renewable Energy in Electric Power Markets. Best Practices from International Experience

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, Jaquelin [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bird, Lori [National Renewable Energy Lab. (NREL), Golden, CO (United States); Heeter, Jenny [National Renewable Energy Lab. (NREL), Golden, CO (United States); Arent, Douglas J. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2012-04-30

    Many countries—reflecting very different geographies, markets, and power systems—are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

  4. On-Chip Magnetic Platform for Single-Particle Manipulation with Integrated Electrical Feedback.

    Science.gov (United States)

    Monticelli, Marco; Torti, Andrea; Cantoni, Matteo; Petti, Daniela; Albisetti, Edoardo; Manzin, Alessandra; Guerriero, Erica; Sordan, Roman; Gervasoni, Giacomo; Carminati, Marco; Ferrari, Giorgio; Sampietro, Marco; Bertacco, Riccardo

    2016-02-17

    Methods for the manipulation of single magnetic particles have become very interesting, in particular for in vitro biological studies. Most of these studies require an external microscope to provide the operator with feedback for controlling the particle motion, thus preventing the use of magnetic particles in high-throughput experiments. In this paper, a simple and compact system with integrated electrical feedback is presented, implementing in the very same device both the manipulation and detection of the transit of single particles. The proposed platform is based on zig-zag shaped magnetic nanostructures, where transverse magnetic domain walls are pinned at the corners and attract magnetic particles in suspension. By applying suitable external magnetic fields, the domain walls move to the nearest corner, thus causing the step by step displacement of the particles along the nanostructure. The very same structure is also employed for detecting the bead transit. Indeed, the presence of the magnetic particle in suspension over the domain wall affects the depinning field required for its displacement. This characteristic field can be monitored through anisotropic magnetoresistance measurements, thus implementing an integrated electrical feedback of the bead transit. In particular, the individual manipulation and detection of single 1-μm sized beads is demonstrated. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  5. Understanding electricity generation in osmotic microbial fuel cells through integrated experimental investigation and mathematical modeling.

    Science.gov (United States)

    Qin, Mohan; Ping, Qingyun; Lu, Yaobin; Abu-Reesh, Ibrahim M; He, Zhen

    2015-11-01

    Osmotic microbial fuel cells (OsMFCs) are a new type of MFCs with integrating forward osmosis (FO). However, it is not well understood why electricity generation is improved in OsMFCs compared to regular MFCs. Herein, an approach integrating experimental investigation and mathematical model was adopted to address the question. Both an OsMFC and an MFC achieved similar organic removal efficiency, but the OsMFC generated higher current than the MFC with or without water flux, resulting from the lower resistance of FO membrane. Combining NaCl and glucose as a catholyte demonstrated that the catholyte conductivity affected the electricity generation in the OsMFC. A mathematical model of OsMFCs was developed and validated with the experimental data. The model predicated the variation of internal resistance with increasing water flux, and confirmed the importance of membrane resistance. Increasing water flux with higher catholyte conductivity could decrease the membrane resistance. Copyright © 2015 Elsevier Ltd. All rights reserved.

  6. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience, Summary for Policymakers

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, J.; Bird, L.; Heeter, J.; Arent, D. A.

    2012-04-01

    Many countries -- reflecting very different geographies, markets, and power systems -- are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

  7. Integrating Variable Renewable Energy in Electric Power Markets. Best Practices from International Experience, Summary for Policymakers

    Energy Technology Data Exchange (ETDEWEB)

    Cochran, Jaquelin [National Renewable Energy Lab. (NREL), Golden, CO (United States); Bird, Lori [National Renewable Energy Lab. (NREL), Golden, CO (United States); Heeter, Jenny [National Renewable Energy Lab. (NREL), Golden, CO (United States); Arent, Douglas J. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2012-04-30

    Many countries - reflecting very different geographies, markets, and power systems - are successfully managing high levels of variable renewable energy on the electric grid, including that from wind and solar energy. This document summarizes policy best practices that energy ministers and other stakeholders can pursue to ensure that electricity markets and power systems can effectively coevolve with increasing penetrations of variable renewable energy. There is no one-size-fits-all approach; each country studied has crafted its own combination of policies, market designs, and system operations to achieve the system reliability and flexibility needed to successfully integrate renewables. Notwithstanding this diversity, the approaches taken by the countries studied all coalesce around five strategic areas: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations. This study also emphatically underscores the value of countries sharing their experiences. The more diverse and robust the experience base from which a country can draw, the more likely that it will be able to implement an appropriate, optimized, and system-wide approach.

  8. Integration Assessment of Visiting Vehicle Induced Electrical Charging of the International Space Station Structure

    Science.gov (United States)

    Kramer, Leonard; Kerslake, Thomas W.; Galofaro, Joel T.

    2010-01-01

    The International Space Station (ISS) undergoes electrical charging in low Earth orbit (LEO) due to positively biased, exposed conductors on solar arrays that collect electrical charges from the space plasma. Exposed solar array conductors predominately collect negatively charged electrons and thus drive the metal ISS structure electrical ground to a negative floating potential (FP) relative to plasma. This FP is variable in location and time as a result of local ionospheric conditions. ISS motion through Earth s magnetic field creates an addition inductive voltage up to 20 positive and negative volts across ISS structure depending on its attitude and location in orbit. ISS Visiting Vehicles (VVs), such as the planned Orion crew exploration vehicle, contribute to the ISS plasma charging processes. Upon physical contact with ISS, the current collection properties of VVs combine with ISS. This is an ISS integration concern as FP must be controlled to minimize arcing of ISS surfaces and ensure proper management of extra vehicular activity crewman shock hazards. This report is an assessment of ISS induced charging from docked Orion vehicles employing negatively grounded, 130 volt class, UltraFlex (ATK Space Systems) solar arrays. To assess plasma electron current collection characteristics, Orion solar cell test coupons were constructed and subjected to plasma chamber current collection measurements. During these tests, coupon solar cells were biased between 0 and 120 V while immersed in a simulated LEO plasma. Tests were performed using several different simulated LEO plasma densities and temperatures. These data and associated theoretical scaling of plasma properties, were combined in a numerical model which was integrated into the Boeing Plasma Interaction Model. It was found that the solar array design for Orion will not affect the ISS FP by more than about 2 V during worst case charging conditions. This assessment also motivated a trade study to determine

  9. A classification of finite groups with integral bi-Cayley graphs

    Directory of Open Access Journals (Sweden)

    Majid Arezoomand

    2015-12-01

    Full Text Available The bi-Cayley graph of a finite group G with respect to a subset S⊆G ‎, ‎which is denoted by \\BCay(G,S ‎, ‎is the graph with‎ ‎vertex set G×{1,2} and edge set {{(x,1‎,‎(sx,2}∣x∈G‎,‎ s∈S} ‎. ‎A‎ ‎finite group G is called a \\textit{bi-Cayley integral group} if for any subset S of‎ ‎G ‎, ‎\\BCay(G,S is a graph with integer eigenvalues‎. ‎In this paper we prove‎ ‎that a finite group G is a bi-Cayley integral group if and only if G is isomorphic to‎ ‎one of the groups Z^k_2 ‎, ‎for some k, ‎Z_3 or S_3 ‎.

  10. Potential Benefits of an Integrated Electric-Acoustic Sound Processor with Children: A Preliminary Report.

    Science.gov (United States)

    Wolfe, Jace; Neumann, Sara; Schafer, Erin; Marsh, Megan; Wood, Mark; Baker, R Stanley

    2017-02-01

    performance obtained with use of acoustic- and electric-only stimulation, and children responded favorably to the use of EAS implemented in an integrated sound processor for real-world use.

  11. A randomised controlled trial of integrated electrical stimulation and physiotherapy to improve mobility for people less than 6 months post stroke.

    Science.gov (United States)

    Wilkinson, Ingrid A; Burridge, Jane; Strike, Paul; Taylor, Paul

    2014-05-14

    Abstract Purpose: To investigate the feasibility of combining physiotherapy and functional electrical stimulation to improve gait post stroke. Methods: A parallel group partially single-blinded randomised clinical trial. Adults living at home, less than 6 months post stroke, were randomised to Group A (physiotherapy, n = 10) or Group B (physiotherapy and common peroneal nerve stimulation, n = 10). Assessments were conducted before randomisation (Week 1), after intervention (Week 8) and after 12 weeks follow-up (Week 20). Results: No between group differences were observed. There were statistically significant within group differences after the intervention period in both groups for walking speed and distance walked (without stimulation), Rivermead Mobility Index and Canadian Occupational Performance Measure, maintained at Week 20. There was statistically significant improvement in 10-m walking speed (Group B) when the stimulator was used at Week 8 (p = 0.03, median 0.04 m/s (8%)). Only Group B had statistically significant within group change in Rivermead Visual Gait Analysis (Week 8), maintained at Week 20. Conclusions: Integrating electrical stimulation and physiotherapy was feasible and improved walking speed. There was no evidence of a training effect compared with physiotherapy alone. One-hundred forty-four participants per group would produce an adequately powered study based on this protocol. Implications for Rehabilitation At the end of the intervention period participants using electrical stimulation to correct dropped foot walked faster. It was feasible for electrical stimulation to be combined with physiotherapy for people less than 6 months post stroke. A larger adequately powered study is required to establish whether there are training effects associated with use of stimulation in this population.

  12. Marketing Integration for the Implementation of Territorial and Sectoral Approach to the Management of Electricity Development

    Directory of Open Access Journals (Sweden)

    Ivan A. Unshchikov

    2017-06-01

    Full Text Available This article contains a proposal for a new approach to management of development of electric power in the multi-level governance system. To improve the effectiveness of the multi-level governance is offered by the wide use of marketing. Tools of investment marketing can be used to match demand and supply, using all levels of management. To do this, the subjects at every level of government carried out an identical procedure horizontal integration of sectoral and territorial marketing. Isolated, and then analyzed and evaluated by territorial competitive position and industry competitive position. Then, based on analysis and evaluation of produced competitive position produced directions of development and formed investment proposals. After conducted custom PESTanalysis, which is proposed to use as a tool for analysis and evaluation of investment demand subjects of external control levels and, in fact, is a vertically integrated marketing in the multi-level governance system. With this approach, each actively involved in the mechanism of the subject of management has the ability to efficiently allocate "through the corridors" of investment development, to select appropriate investment proposals. Goal setting, recording and evaluation of the competitive position in the performance of the above procedures can effectively compare and coordinate investment demand with investment proposals in the complex structure of multi-level governance. The use of horizontal and vertical integration of marketing in this system greatly increases the efficiency of management by taking into account the scale and evaluation of internal and external market factors.

  13. Response to waste electrical and electronic equipments in China: legislation, recycling system, and advanced integrated process.

    Science.gov (United States)

    Zhou, Lei; Xu, Zhenming

    2012-05-01

    Over the past 30 years, China has been suffering from negative environmental impacts from distempered waste electrical and electronic equipments (WEEE) recycling activities. For the purpose of environmental protection and resource reusing, China made a great effort to improve WEEE recycling. This article reviews progresses of three major fields in the development of China's WEEE recycling industry: legal system, formal recycling system, and advanced integrated process. Related laws concerning electronic waste (e-waste) management and renewable resource recycling are analyzed from aspects of improvements and loopholes. The outcomes and challenges for existing formal recycling systems are also discussed. The advantage and deficiency related to advanced integrated recycling processes for typical e-wastes are evaluated respectively. Finally, in order to achieve high disposal rates of WEEE, high-quantify separation of different materials in WEEE and high added value final products produced by separated materials from WEEE, an idea of integrated WEEE recycling system is proposed to point future development of WEEE recycling industry. © 2012 American Chemical Society

  14. Cloud-based shaft torque estimation for electric vehicle equipped with integrated motor-transmission system

    Science.gov (United States)

    Zhu, Xiaoyuan; Zhang, Hui; Yang, Bo; Zhang, Guichen

    2018-01-01

    In order to improve oscillation damping control performance as well as gear shift quality of electric vehicle equipped with integrated motor-transmission system, a cloud-based shaft torque estimation scheme is proposed in this paper by using measurable motor and wheel speed signals transmitted by wireless network. It can help reduce computational burden of onboard controllers and also relief network bandwidth requirement of individual vehicle. Considering possible delays during signal wireless transmission, delay-dependent full-order observer design is proposed to estimate the shaft torque in cloud server. With these random delays modeled by using homogenous Markov chain, robust H∞ performance is adopted to minimize the effect of wireless network-induced delays, signal measurement noise as well as system modeling uncertainties on shaft torque estimation error. Observer parameters are derived by solving linear matrix inequalities, and simulation results using acceleration test and tip-in, tip-out test demonstrate the effectiveness of proposed shaft torque observer design.

  15. A Calderón multiplicative preconditioner for coupled surface-volume electric field integral equations

    KAUST Repository

    Bagci, Hakan

    2010-08-01

    A well-conditioned coupled set of surface (S) and volume (V) electric field integral equations (S-EFIE and V-EFIE) for analyzing wave interactions with densely discretized composite structures is presented. Whereas the V-EFIE operator is well-posed even when applied to densely discretized volumes, a classically formulated S-EFIE operator is ill-posed when applied to densely discretized surfaces. This renders the discretized coupled S-EFIE and V-EFIE system ill-conditioned, and its iterative solution inefficient or even impossible. The proposed scheme regularizes the coupled set of S-EFIE and V-EFIE using a Calderón multiplicative preconditioner (CMP)-based technique. The resulting scheme enables the efficient analysis of electromagnetic interactions with composite structures containing fine/subwavelength geometric features. Numerical examples demonstrate the efficiency of the proposed scheme. © 2006 IEEE.

  16. A Solar Atlas for Building-Integrated Photovoltaic Electricity Resource Assessment

    DEFF Research Database (Denmark)

    Möller, Bernd; Nielsen, Steffen; Sperling, Karl

    While photovoltaic energy gathers momentum as power costs increase and panel costs decrease, the total technical and economic potentials for building integrated solar energy in Denmark remain largely unidentified. The current net metering feed-in scheme is restricted to 6kW plant size, limiting...... large scale application. This paper presents a solar atlas based on a high-resolution digital elevation model (DEM) of all 2.9 million buildings in the country, combined with a building register. The 1.6 m resolution DEM has been processed into global radiation input, solar energy output and production....... The continuous assessment of solar electricity generation potentials by marginal costs, ownership and plant type presented in the paper may be used for defining long term policies for the development of photovoltaic energy, as well as political instruments such as a multi-tier feed-in tariff....

  17. Modelling the Influence of Ground Surface Relief on Electric Sounding Curves Using the Integral Equations Method

    Directory of Open Access Journals (Sweden)

    Balgaisha Mukanova

    2017-01-01

    Full Text Available The problem of electrical sounding of a medium with ground surface relief is modelled using the integral equations method. This numerical method is based on the triangulation of the computational domain, which is adapted to the shape of the relief and the measuring line. The numerical algorithm is tested by comparing the results with the known solution for horizontally layered media with two layers. Calculations are also performed to verify the fulfilment of the “reciprocity principle” for the 4-electrode installations in our numerical model. Simulations are then performed for a two-layered medium with a surface relief. The quantitative influences of the relief, the resistivity ratios of the contacting media, and the depth of the second layer on the apparent resistivity curves are established.

  18. Integration of Carbon Nanotubes in Microsystems: Local Growth and Electrical Properties of Contacts

    Directory of Open Access Journals (Sweden)

    Knut E. Aasmundtveit

    2013-07-01

    Full Text Available Carbon nanotubes (CNTs have been directly grown onto a silicon microsystem by a local synthesis method. This method has potential for wafer-level complimentary metal-oxide-semiconductor (CMOS transistor-compatible integration of CNTs into more complex Si microsystems; enabling, e.g., gas sensors at low cost. In this work, we demonstrate that the characteristics of CNTs grown on specific locations can be changed by tuning the synthesis conditions. We also investigate the role of the contact between CNTs and the Si microsystem; observing a large influence on the electrical characteristics of our devices. Different contact modes can render either an ohmic or Schottky-like rectifying characteristics.

  19. An integrated framework for outsourcing using balanced score card and ELECTRE III

    Directory of Open Access Journals (Sweden)

    Sareh Namazi

    2011-04-01

    Full Text Available During the past few decades, many organizations have attempted to increase their productivity through outsourcing parts of their responsibilities. Outsourcing helps firms reduce their low value added activities and focus on their high value added activities. It also helps organization save their time and energy which leads to more efficient units. The idea of outsourcing is more important for project based organizations where the nature of works is different from a particular project to another one. This paper presents an integrated balanced score card system with an adaptation of ELECTRE III method to select suitable resources for outsourcing. The proposed model of the paper is implemented for a case study of subway system in Iran and the results are discussed.

  20. Monitoring solute fluxes: Integrating electrical resistivity with multi-compartment sampler techniques

    Science.gov (United States)

    Bloem, Esther; Fernandez, Perrine; French, Helen K.

    2016-04-01

    The impact of agriculture, industry, airport activities on soil and water quality is strongly influenced by soil heterogeneity. To improve risk assessment, monitoring, and treatment strategies, we require a better understanding of the effect of soil heterogeneity on contaminant movement and better methods for monitoring heterogeneous contaminated transport. Sufficient characterization of spatial and temporal distribution of contaminant transport requires measurements of water and solute fluxes at multiple locations with a high temporal resolution. During this presentation, we will show a newly developed instrument, which combines multi-compartment sampling with electrical resistivity measurements, to observe spatial and temporal fluxes of contaminants. Solute monitoring is often limited to observations of resident concentrations, while flux concentrations govern the movement of solutes in soils. Bloem et al. (2010) developed a multi-compartment sampler (MCS) which is capable of measuring fluxes at a high spatial resolution under natural conditions. The sampler is divided into 100 separate compartments of 31 by 31 mm. Flux data can be recorded at a high time resolution (every 5 minutes). Tracer leaching can be monitored by frequently sampling the collected leachate while leaving the sampler buried in situ. To optimize the monitoring of tracer leaching and measure real solute fluxes the multi-compartment sampler has been extended with 121 electrodes. The electrodes are mounted at each corner of each compartment to measure the electrical conductivity above each compartment while water percolates through the compartments. By using different electrode couples, the setup can also be used to image above the multi-compartment sampler. The instrument can be used for detailed studies both in the laboratory and in the field. For laboratory experiments a transparent column is used which fits perfect on top of the MCS. We present a selection of the integrated electrical

  1. Renewable Electricity Futures (Presentation)

    Energy Technology Data Exchange (ETDEWEB)

    Hand, M.

    2012-10-01

    This presentation library summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. It is being presented at the Utility Variable-Generation Integration Group Fall Technical Workshop on October 24, 2012.

  2. Steady-state analysis of the integrated natural gas and electric power system with bi-directional energy conversion

    DEFF Research Database (Denmark)

    Zeng, Qing; Fang, Jiakun; Li, Jinghua

    2016-01-01

    Nowadays, the electric power system and natural gas network are becoming increasingly coupled and interdependent. A harmonized integration of natural gas and electricity network with bi-directional energy conversion is expected to accommodate high penetration levels of renewables in terms of system...... flexibility. This work focuses on the steady-state analysis of the integrated natural gas and electric power system with bi-directional energy conversion. A unified energy flow formulation is developed to describe the nodal balance and branch flow in both systems and it is solved with the Newton...... series of wind power and power load are used to investigate the mitigation effect of the integrated energy system. At last, the effect of wind power and power demand on the output of Power to Gas (P2G) and gas-fired power generation (GPG) has also been investigated....

  3. Results from an investigation of the integration of wind energy into the El Paso Electric grid system

    Energy Technology Data Exchange (ETDEWEB)

    Moroz, E.M.; Parks, N.J.; Swift, A.H.; Traichal, P.A. [Univ. of Texas, El Paso, TX (United States)

    1997-12-31

    This paper documents some preliminary results from an evaluation of the costs and benefits to be gained from the integration of wind generated electricity into the El Paso Electric grid system. The study focused on the utilization of the considerable known wind potential of the Guadalupe/Delaware Mountains region, but also looked at other energetic wind resources within 15 miles of El Paso Electric`s Grid. The original project`s goal was to identify the added value of wind in terms of jobs, line support, risk reduction etc., that wind energy could bring to El Paso Electric. Although these goals have not yet been achieved the potential for water savings and reductions in gaseous emissions have been documented. Thus this paper focuses mainly on the water consumption and criteria pollutant emissions that could be avoided by adding wind energy to El Paso Electric`s generation mix. Preliminary data from a renewables attitude survey indicates that, from the 338 respondents, there is overwhelming public support for utilizing such renewable sources of electricity. This case study, which should be of direct relevance to the arid southwestern states and beyond, was sponsored by the Environmental Protection Agency (EPA) and conducted in cooperation with El Paso Electric.

  4. Electrical Impedance Spectroscopy for Detection of Cells in Suspensions Using Microfluidic Device with Integrated Microneedles

    Directory of Open Access Journals (Sweden)

    Muhammad Asraf Mansor

    2017-02-01

    Full Text Available In this study, we introduce novel method of flow cytometry for cell detection based on impedance measurements. The state of the art method for impedance flow cytometry detection utilizes an embedded electrode in the microfluidic to perform measurement of electrical impedance of the presence of cells at the sensing area. Nonetheless, this method requires an expensive and complicated electrode fabrication process. Furthermore, reuse of the fabricated electrode also requires an intensive and tedious cleaning process. Due to that, we present a microfluidic device with integrated microneedles. The two microneedles are placed at the half height of the microchannel for cell detection and electrical measurement. A commercially-available Tungsten needle was utilized for the microneedles. The microneedles are easily removed from the disposable PDMS (Polydimethylsiloxane microchannel and can be reused with a simple cleaning process, such as washing by ultrasonic cleaning. Although this device was low cost, it preserves the core functionality of the sensor, which is capable of detecting passing cells at the sensing area. Therefore, this device is suitable for low-cost medical and food safety screening and testing process in developing countries.

  5. Engine-integrated solid oxide fuel cells for efficient electrical power generation on aircraft

    Science.gov (United States)

    Waters, Daniel F.; Cadou, Christopher P.

    2015-06-01

    This work investigates the use of engine-integrated catalytic partial oxidation (CPOx) reactors and solid oxide fuel cells (SOFCs) to reduce fuel burn in vehicles with large electrical loads like sensor-laden unmanned air vehicles. Thermodynamic models of SOFCs, CPOx reactors, and three gas turbine (GT) engine types (turbojet, combined exhaust turbofan, separate exhaust turbofan) are developed and checked against relevant data and source material. Fuel efficiency is increased by 4% and 8% in the 50 kW and 90 kW separate exhaust turbofan systems respectively at only modest cost in specific power (8% and 13% reductions respectively). Similar results are achieved in other engine types. An additional benefit of hybridization is the ability to provide more electric power (factors of 3 or more in some cases) than generator-based systems before encountering turbine inlet temperature limits. A sensitivity analysis shows that the most important parameters affecting the system's performance are operating voltage, percent fuel oxidation, and SOFC assembly air flows. Taken together, this study shows that it is possible to create a GT-SOFC hybrid where the GT mitigates balance of plant losses and the SOFC raises overall system efficiency. The result is a synergistic system with better overall performance than stand-alone components.

  6. Wind power integration with heat pumps, heat storages, and electric vehicles - Energy systems analysis and modelling

    Energy Technology Data Exchange (ETDEWEB)

    Hedegaard, K.

    2013-09-15

    This PhD investigates to which extent heat pumps, heat storages, and electric vehicles can support the integration of wind power. Considering the gaps in existing research, the main focus is put on individual heat pumps in the residential sector (one-family houses) and the possibilities for flexible operation, using the heat storage options available. Several energy systems analyses are performed using the energy system models, Balmorel, developed at the former TSO, ElkraftSystem, and, EnergyPLAN, developed at Aalborg University. The Danish energy system towards 2030, with wind power penetrations of up to 60 %, is used as a case study in most of the analyses. Both models have been developed further, resulting in an improved representation of individual heat pumps and heat storages. An extensive model add-on for Balmorel renders it possible to optimise investment and operation of individual heat pumps and different types of heat storages, in integration with the energy system. Total costs of the energy system are minimised in the optimisation. The add-on incorporates thermal building dynamics and covers various different heat storage options: intelligent heat storage in the building structure for houses with radiator heating and floor heating, respectively, heat accumulation tanks on the space heating circuit, as well as hot water tanks. In EnergyPLAN, some of the heat storage options have been modelled in a technical optimisation that minimises fuel consumption of the energy system and utilises as much wind power as possible. The energy systems analyses reveal that in terms of supporting wind power integration, the installation of individual heat pumps is an important step, while adding heat storages to the heat pumps is less influential. When equipping the heat pumps with heat storages, only moderate system benefits can be gained. Hereof, the main system benefit is that the need for peak/reserve capacity investments can be reduced through peak load shaving; in

  7. An Integrated Design approach to Power Systems: from Power Flows to Electricity Markets

    Science.gov (United States)

    Bose, Subhonmesh

    Power system is at the brink of change. Engineering needs, economic forces and environmental factors are the main drivers of this change. The vision is to build a smart electrical grid and a smarter market mechanism around it to fulfill mandates on clean energy. Looking at engineering and economic issues in isolation is no longer an option today; it needs an integrated design approach. In this thesis, I shall revisit some of the classical questions on the engineering operation of power systems that deals with the nonconvexity of power flow equations. Then I shall explore some issues of the interaction of these power flow equations on the electricity markets to address the fundamental issue of market power in a deregulated market environment. Finally, motivated by the emergence of new storage technologies, I present an interesting result on the investment decision problem of placing storage over a power network. The goal of this study is to demonstrate that modern optimization and game theory can provide unique insights into this complex system. Some of the ideas carry over to applications beyond power systems.

  8. Torque Split Strategy for Parallel Hybrid Electric Vehicles with an Integrated Starter Generator

    Directory of Open Access Journals (Sweden)

    Zhumu Fu

    2014-01-01

    Full Text Available This paper presents a torque split strategy for parallel hybrid electric vehicles with an integrated starter generator (ISG-PHEV by using fuzzy logic control. By combining the efficiency map and the optimum torque curve of the internal combustion engine (ICE with the state of charge (SOC of the batteries, the torque split strategy is designed, which manages the ICE within its peak efficiency region. Taking the quantified ICE torque, the quantified SOC of the batteries, and the quantified ICE speed as inputs, and regarding the output torque demanded on the ICE as an output, a fuzzy logic controller (FLC with relevant fuzzy rules has been developed to determine the optimal torque distribution among the ICE, the ISG, and the electric motor/generator (EMG effectively. The simulation results reveal that, compared with the conventional torque control strategy which uses rule-based controller (RBC in different driving cycles, the proposed FLC improves the fuel economy of the ISG-PHEV, increases the efficiency of the ICE, and maintains batteries SOC within its operation range more availably.

  9. Integrating environmental equity, energy and sustainability: A spatial-temporal study of electric power generation

    Science.gov (United States)

    Touche, George Earl

    The theoretical scope of this dissertation encompasses the ecological factors of equity and energy. Literature important to environmental justice and sustainability are reviewed, and a general integration of global concepts is delineated. The conceptual framework includes ecological integrity, quality human development, intra- and inter-generational equity and risk originating from human economic activity and modern energy production. The empirical focus of this study concentrates on environmental equity and electric power generation within the United States. Several designs are employed while using paired t-tests, independent t-tests, zero-order correlation coefficients and regression coefficients to test seven sets of hypotheses. Examinations are conducted at the census tract level within Texas and at the state level across the United States. At the community level within Texas, communities that host coal or natural gas utility power plants and corresponding comparison communities that do not host such power plants are tested for compositional differences. Comparisons are made both before and after the power plants began operating for purposes of assessing outcomes of the siting process and impacts of the power plants. Relationships between the compositions of the hosting communities and the risks and benefits originating from the observed power plants are also examined. At the statewide level across the United States, relationships between statewide composition variables and risks and benefits originating from statewide electric power generation are examined. Findings indicate the existence of some limited environmental inequities, but they do not indicate disparities that confirm the general thesis of environmental racism put forth by environmental justice advocates. Although environmental justice strategies that would utilize Title VI of the 1964 Civil Rights Act and the disparate impact standard do not appear to be applicable, some findings suggest potential

  10. Developing the Adversity Quotient of Mathayomsuksa 3 Students using the Integrated Group Counseling Program

    Directory of Open Access Journals (Sweden)

    Pantheetra Samart

    2017-11-01

    Full Text Available The purposes of this study were (1 to study the definitions, and components of the adversity quotient ; (2 to develop the integrated group counseling program ; and, (3 to compare the results of using the integrated group counseling program to develop the adversity quotient of students. The samples of study consisted of 16 students who enrolled in Mathayomsuksa 3 in an academic year 2015 at Mahasarakham University Demonstration School (secondary. They were randomly selected and divided into two groups: an experimental group and a control group, each of which contained 8 students. The instruments were the 5 rating scale adversity quotient test, integrated group counseling program, behavioral observation and recording form. The data were analyzed by using the Friedman Test, the Wilcoxon Match Pair Signed – Ranks Test and the Mann - Whitney U – Test, respectively. The results of this study indicated that the adversity quotient was defined as the expression of the students on understanding, embracing and responsibility to the adversity, planning and controlling to deal the adversity with patience, perseverance and overcoming the adversity There were four components of the adversity quotient, that is, controlling, responsibility, adversity accessing and analyzing, and motivation and patience. These components were put in the integrated group counseling program to develop the adversity quotient of students. This program was validated by the experts with known appropriate values of 4.00 to 4.80 and standard deviation values of 0.00 to 0.89. After this program was implemented, it was found that the mean scores of the adversity quotient in the experimental group after participating in the program were higher than those before participating in the program at the statistically significance level of .05. When considering the retention behaviors, it was found that the mean scores of the adversity quotient in the experimental group during the follow-up 1

  11. The Group Differentiation of Farmers Whose Land is Expropriated and Community Integration

    OpenAIRE

    Tian, Qi-heng; Meng, Chuan-hui

    2011-01-01

    This paper introduces the status of group differentiation of farmers whose land is expropriated and analyses the forcing of urban community factor and social workers' intervention on community integration of farmers whose land is expropriated. Since individual characteristics factors, external factors, social support and internal factors are different, the understandings of current farmer group whose land is expropriated on social work have great disparity. The obstacles existing in urbanizat...

  12. Measurement Levels of the Spatial Integration – Suggestions for a Central-European Factor Group

    Directory of Open Access Journals (Sweden)

    Andrea Uszkai

    2015-10-01

    Full Text Available The objective of the study is to point out, what kind of measurement methodologies and factor groups are used to determinate the depth of the spatial integration in the national and international scientific literature. Integration means in this sense the interconnection of several (spatial units (Kulcsár-Rostás, 1989; Kovács, 2001; Kiss, 2005. One of the most widely interpreted types of the integration is the economic integration, which can be applied to enterprises and spatial units as well. This study focuses on the last one and examines it at three territorial levels, distinguishing global, supranational (among national states and subnational levels. The possible measurement methods are significantly determined by the spatial levels. The paper makes some suggestions for the possible measurement method in Cenrtral-European context.

  13. Basis of integrated approach to sports and recreational activities of students of special medical groups

    Directory of Open Access Journals (Sweden)

    Zaharova L.V.

    2014-01-01

    Full Text Available Purpose : to prove the superiority of techniques integrated approach to sports and recreational activities of students of special medical groups in the educational institution. Material / methods : the annual pedagogical experiment conducted on three groups that have been formed based on the results of preliminary studies based on diagnosis. Learning process based on the principle of improving training. Results : the advantages of an integrated approach to sports and recreational activities of students with disorders of the musculoskeletal system. Recommended approaches to increase physical and functional training. Also - the formation of a stable demand of motor activity, leading healthy lifestyles, in the acquisition of social status in the educational activity. Conclusions : the integrated approach will meet the educational needs of students to form a cultural competence of the individual in the preservation and conservation of health, ability to adapt and successfully implement their professional activities.

  14. Literacy and Technology: Integrating Technology with Small Group, Peer-Led Discussions of Literature

    Science.gov (United States)

    Coffey, Genya

    2012-01-01

    This review examines research of computer-mediated small group discussion of literature. The goal of this review is to explore several instructional formats for integrating print-based and new literacies skills. First, the theoretical foundations for the shift from teacher-led to student led discussion are outlined. Research exploring ways in…

  15. Owning Up to Negative Ingroup Traits: How Personal Autonomy Promotes the Integration of Group Identity.

    Science.gov (United States)

    Legault, Lisa; Weinstein, Netta; Mitchell, Jahlil; Inzlicht, Michael; Pyke, Kristen; Upal, Afzal

    2017-10-01

    Our experiences, attributes, and behaviors are diverse, inconsistent, and often negative. Consequently, our capacity to assimilate divergent experiences-particularly negative aspects-is important to the development of a unified self. Whereas this process of integration has received attention at the level of personal identity, it has not been assessed at the level of group identity. We examined the mechanisms involved in integrating positive and negative ingroup identities, as well as related outcomes. In three experiments, participants (N = 332) high and low in autonomy identified either positive or negative aspects of their ingroup and then indicated the extent to which they integrated the attribute. Those high in personal autonomy integrated both positive and negative identities, whereas those low in autonomy acknowledged only positive identities. Study 2 showed that, regardless of identity valence, those high in autonomy felt satisfied and close with their group. Conversely, those low in autonomy felt less close and more dissatisfied with their group after reflecting on negative identities. Finally, reflecting on a negative identity reduced prejudice, but only for those high in autonomy. Owning up to negative group traits is facilitated by autonomy and demonstrates benefits for ingroup and intergroup processes. © 2016 Wiley Periodicals, Inc.

  16. Integration Processes of a Romanian Group in a Huelva Village through Family Life Stories

    Science.gov (United States)

    Díaz-Reales, Antonia-María; Aguaded-Gómez, Ignacio

    2015-01-01

    This paper examines the integration of Romanian immigrants in Lucena del Puerto (Huelva, Spain) through the life stories of two families of Romanian origin. The experiences of the groups presented in this study were analyzed. Both families were in the town for work, to grow and harvest strawberries. We observed a contrast between idealistic views…

  17. Combining Identity and Integration: Comparative Analysis of Schools for Two Minority Groups in Ukraine

    Science.gov (United States)

    Kulyk, Volodymyr

    2013-01-01

    This article analyses school systems for two of Ukraine's minorities, the Hungarians and the Crimean Tatars with the aim of assessing their success in promoting ethnocultural identity and social integration of the minority youth. I demonstrate that the exclusive instruction in Hungarian ensures the reproduction of group language knowledge and…

  18. Integrated and Applied Curricula Discussion Group and Data Base Project. Final Report.

    Science.gov (United States)

    Wisconsin Univ. - Stout, Menomonie. Center for Vocational, Technical and Adult Education.

    A project was conducted to compile integrated and applied curriculum resources, develop databases on the World Wide Web, and encourage networking for high school and technical college educators through an Internet discussion group. Activities conducted during the project include the creation of a web page to guide users to resource banks…

  19. Comparison of combined-field and electric-field volume integral equations for modelling double-negative metematerial antennas and scatterers

    DEFF Research Database (Denmark)

    Kim, Oleksiy S.; Breinbjerg, Olav

    2008-01-01

    Two volume integral equation formulations for modelling magneto-dielectric objects are compared in terms of accuracy and computational efficiency. The first is the combined-field integral equation (CFVIE), in which the unknown quantities are both the electric and magnetic fields, while the second...... is the electric-field integral equation (EFVIE) with a single unknown quantity - the electric field. A resonant double-negative metamaterial spherical shell is analysed as an example....

  20. Integrated Vehicle and Trajectory Design of Small Spacecraft with Electric Propulsion for Earth and Interplanetary Missions

    Science.gov (United States)

    Spangelo, Sara; Dalle, Derek; Longmier, Benjamin

    2015-01-01

    This paper investigates the feasibility of Earth-transfer and interplanetary mission architectures for miniaturized spacecraft using emerging small solar electric propulsion technologies. Emerging small SEP thrusters offer significant advantages relative to existing technologies and will enable U-class systems to perform trajectory maneuvers with significant Delta V requirements. The approach in this paper is unique because it integrates trajectory design with vehicle sizing and accounts for the system and operational constraints of small U-class missions. The modeling framework includes integrated propulsion, orbit, energy, and external environment dynamics and systems-level power, energy, mass, and volume constraints. The trajectory simulation environment models orbit boosts in Earth orbit and flyby and capture trajectories to interplanetary destinations. A family of small spacecraft mission architectures are studied, including altitude and inclination transfers in Earth orbit and trajectories that escape Earth orbit and travel to interplanetary destinations such as Mercury, Venus, and Mars. Results are presented visually to show the trade-offs between competing performance objectives such as maximizing available mass and volume for payloads and minimizing transfer time. The results demonstrate the feasibility of using small spacecraft to perform significant Earth and interplanetary orbit transfers in less than one year with reasonable U-class mass, power, volume, and mission durations.

  1. Plug-In Electric Vehicle Fast Charge Station Operational Analysis with Integrated Renewables: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Simpson, M.; Markel, T.

    2012-08-01

    The growing, though still nascent, plug-in electric vehicle (PEV) market currently operates primarily via level 1 and level 2 charging in the United States. Fast chargers are still a rarity, but offer a confidence boost to oppose 'range anxiety' in consumers making the transition from conventional vehicles to PEVs. Because relatively no real-world usage of fast chargers at scale exists yet, the National Renewable Energy Laboratory developed a simulation to help assess fast charging needs based on real-world travel data. This study documents the data, methods, and results of the simulation run for multiple scenarios, varying fleet sizes, and the number of charger ports. The grid impact of this usage is further quantified to assess the opportunity for integration of renewables; specifically, a high frequency of fast charging is found to be in demand during the late afternoons and evenings coinciding with grid peak periods. Proper integration of a solar array and stationary battery thus helps ease the load and reduces the need for new generator construction to meet the demand of a future PEV market.

  2. Development of an integrated Grey-fuzzy-based electricity management system for enterprises

    Energy Technology Data Exchange (ETDEWEB)

    Yao, Albert W.L.; Chen, C.K. [National Kaohsiung First Univ. of Science and Technology, Dept. of Mechanical and Automation Engineering, Yengchau, Kaohsiung (Taiwan); Chi, S.C. [Shu Zen College of Medicine and Management, Dept. of Information Management, Luzhu, Kaohsiung (Taiwan)

    2005-11-01

    The goal of this project is to develop a PC-based electricity management system for our university. This proposed demand control electricity management system is embedded with an intelligent predictor and controller, in order to forecast time-variant electric demand online and to manage the electric facilities real-time. This paper presents the design of a fuzzy logic-based electric controller and concludes with a discussion of this study. The proposed hybrid PC web-based intelligent electric demand control system is able to provide an efficient means to control and manage the use of electricity for enterprises. (Author)

  3. Integrative analysis of multiple diverse omics datasets by sparse group multitask regression.

    Science.gov (United States)

    Lin, Dongdong; Zhang, Jigang; Li, Jingyao; He, Hao; Deng, Hong-Wen; Wang, Yu-Ping

    2014-01-01

    A variety of high throughput genome-wide assays enable the exploration of genetic risk factors underlying complex traits. Although these studies have remarkable impact on identifying susceptible biomarkers, they suffer from issues such as limited sample size and low reproducibility. Combining individual studies of different genetic levels/platforms has the promise to improve the power and consistency of biomarker identification. In this paper, we propose a novel integrative method, namely sparse group multitask regression, for integrating diverse omics datasets, platforms, and populations to identify risk genes/factors of complex diseases. This method combines multitask learning with sparse group regularization, which will: (1) treat the biomarker identification in each single study as a task and then combine them by multitask learning; (2) group variables from all studies for identifying significant genes; (3) enforce sparse constraint on groups of variables to overcome the "small sample, but large variables" problem. We introduce two sparse group penalties: sparse group lasso and sparse group ridge in our multitask model, and provide an effective algorithm for each model. In addition, we propose a significance test for the identification of potential risk genes. Two simulation studies are performed to evaluate the performance of our integrative method by comparing it with conventional meta-analysis method. The results show that our sparse group multitask method outperforms meta-analysis method significantly. In an application to our osteoporosis studies, 7 genes are identified as significant genes by our method and are found to have significant effects in other three independent studies for validation. The most significant gene SOD2 has been identified in our previous osteoporosis study involving the same expression dataset. Several other genes such as TREML2, HTR1E, and GLO1 are shown to be novel susceptible genes for osteoporosis, as confirmed from other

  4. Integrative analysis of multiple diverse omics datasets by sparse group multitask regression

    Directory of Open Access Journals (Sweden)

    Dongdong eLin

    2014-10-01

    Full Text Available A variety of high throughput genome-wide assays enable the exploration of genetic risk factors underlying complex traits. Although these studies have remarkable impact on identifying susceptible biomarkers, they suffer from issues such as limited sample size and low reproducibility. Combining individual studies of different genetic levels/platforms has the promise to improve the power and consistency of biomarker identification. In this paper, we propose a novel integrative method, namely sparse group multitask regression, for integrating diverse omics datasets, platforms and populations to identify risk genes/factors of complex diseases. This method combines multitask learning with sparse group regularization, which will: 1 treat the biomarker identification in each single study as a task and then combine them by multitask learning; 2 group variables from all studies for identifying significant genes; 3 enforce sparse constraint on groups of variables to overcome the ‘small sample, but large variables’ problem. We introduce two sparse group penalties: sparse group lasso and sparse group ridge in our multitask model, and provide an effective algorithm for each model. In addition, we propose a significance test for the identification of potential risk genes. Two simulation studies are performed to evaluate the performance of our integrative method by comparing it with conventional meta-analysis method. The results show that our sparse group multitask method outperforms meta-analysis method significantly. In an application to our osteoporosis studies, 7 genes are identified as significant genes by our method and are found to have significant effects in other three independent studies for validation. The most significant gene SOD2 has been identified in our previous osteoporosis study involving the same expression dataset. Several other genes such as TREML2, HTR1E and GLO1 are shown to be novel susceptible genes for osteoporosis, as confirmed

  5. An Extended Decomposed Theory of Planned Behaviour to Predict the Usage Intention of the Electric Car: A Multi-Group Comparison

    National Research Council Canada - National Science Library

    Ingrid Moons; Patrick De Pelsmacker

    2015-01-01

      An Extended Decomposed Theory of Planned Behaviour (DTPB) is developed that integrates emotions towards car driving and electric cars as well as car driving habits of the DTPB, and is empirically validated in a Belgian sample (n = 1023...

  6. Online exclusive: functional integration of nursing research into a pediatric oncology cooperative group: finding common ground.

    Science.gov (United States)

    Hinds, Pamela S; Baggott, Christina; DeSwarte-Wallace, Joetta; Dodd, Marilyn; Haase, Joan; Hockenberry, Marilyn; Hooke, Casey; McGuire Cullen, Patsy; Moore, Ida; Roll, Lona; Ruccione, Kathy

    2003-01-01

    To provide a brief description of the historic role of nursing and nursing research in the culture of previous pediatric oncology cooperative groups and compare the research language used in cooperative groups with the language used in nursing research. Published empirical, clinical, and methodologic reports. The culture and language of nursing research differ from those of medical research and the pediatric oncology cooperative group, the Children's Oncology Group (COG). Different approaches exist to integrate nursing research priorities into the priorities of COG, including freestanding protocols, companion protocols, and research objectives included in therapeutic protocols. Full integration of nursing research into COG is feasible but dependent on recognition of cultural and language differences among researchers. Integration will be demonstrated by the number of concepts and protocols contributed to or developed by active nurses in COG. Significant advances exist for nurses conducting research in COG. These research efforts are facilitated by a familiarity with the science language used by other disciplines in COG and an understanding of COG's research processes. Increased interdisciplinary scientific collaborations involving nurses in COG particularly benefit pediatric patients with cancer.

  7. The Functional Model Approach to the Consulting for Vertically - Integrated Construction Group

    Directory of Open Access Journals (Sweden)

    Pimenova Anna

    2016-01-01

    Full Text Available Managerial decision making in the framework of functional modeling of the consulting process have a direct effect on other business - processes of vertically - integrated group of construction companies. As a result, the experience of consulting companies tends to be used for the making managerial solutions. Consultancy is known as one of the most complicated types of buisiness process. It requires a huge and deep examines and researches of targeting area, therefore need to be provided with special methodology, included internal standards of the consulting companies. Correct methodological support, planning process and implementation of managerial solutions should be based on the survey of the direct and inverse connections and interdependence of all group’s business – processes. Functional - process modeling of the vertically - integrated construction group could be considered as an instrument of examination and analysis of the issue how the managerial solution impact on the business-process for the construction group functioning. The main result of the research is the formalized process-oriented model – prototype of the business - processes of vertically - integrated group of construction companies.

  8. The integration of renewable energy sources into electric power distribution systems. Volume 2, Utility case assessments

    Energy Technology Data Exchange (ETDEWEB)

    Zaininger, H.W.; Ellis, P.R.; Schaefer, J.C. [Zaininger Engineering Co., San Jose, CA (United States)

    1994-06-01

    Electric utility distribution system impacts associated with the integration of renewable energy sources such as photovoltaics (PV) and wind turbines (WT) are considered in this project. The impacts are expected to vary from site to site according to the following characteristics: (1) The local solar insolation and/or wind characteristics; (2) renewable energy source penetration level; (3) whether battery or other energy storage systems are applied; and (4) local utility distribution design standards and planning practices. Small, distributed renewable energy sources are connected to the utility distribution system like other, similar kW- and MW-scale equipment and loads. Residential applications are expected to be connected to single-phase 120/240-V secondaries. Larger kw-scale applications may be connected to three-phase secondaries, and larger hundred-kW and MW-scale applications, such as MW-scale windfarms or PV plants, may be connected to electric utility primary systems via customer-owned primary and secondary collection systems. Small, distributed renewable energy sources installed on utility distribution systems will also produce nonsite-specific utility generation system benefits such as energy and capacity displacement benefits, in addition to the local site-specific distribution system benefits. Although generation system benefits are not site-specific, they are utility-specific, and they vary significantly among utilities in different regions. In addition, transmission system benefits, environmental benefits and other benefits may apply. These benefits also vary significantly among utilities and regions. Seven utility case studies considering PV, WT, and battery storage were conducted to identify a range of potential renewable energy source distribution system applications.

  9. Integration of individual and social information for decision-making in groups of different sizes.

    Directory of Open Access Journals (Sweden)

    Seongmin A Park

    2017-06-01

    Full Text Available When making judgments in a group, individuals often revise their initial beliefs about the best judgment to make given what others believe. Despite the ubiquity of this phenomenon, we know little about how the brain updates beliefs when integrating personal judgments (individual information with those of others (social information. Here, we investigated the neurocomputational mechanisms of how we adapt our judgments to those made by groups of different sizes, in the context of jury decisions for a criminal. By testing different theoretical models, we showed that a social Bayesian inference model captured changes in judgments better than 2 other models. Our results showed that participants updated their beliefs by appropriately weighting individual and social sources of information according to their respective credibility. When investigating 2 fundamental computations of Bayesian inference, belief updates and credibility estimates of social information, we found that the dorsal anterior cingulate cortex (dACC computed the level of belief updates, while the bilateral frontopolar cortex (FPC was more engaged in individuals who assigned a greater credibility to the judgments of a larger group. Moreover, increased functional connectivity between these 2 brain regions reflected a greater influence of group size on the relative credibility of social information. These results provide a mechanistic understanding of the computational roles of the FPC-dACC network in steering judgment adaptation to a group's opinion. Taken together, these findings provide a computational account of how the human brain integrates individual and social information for decision-making in groups.

  10. Integration of 100% heat pumps and electric vehicles in the low voltage distribution network: A Danish case story

    DEFF Research Database (Denmark)

    Shao, Nan; You, Shi; Segerberg, Helena

    2013-01-01

    The existing electricity infrastructure may to a great extent limit a high penetration of micro-sized Distributed Energy Rescores (DERs), due to physical bottlenecks, e.g. load capacities of cables and transformers and voltage limitations. In this study, integration impacts of heat pumps (HPs...

  11. New Integrated Multilevel Converter for Switched Reluctance Motor Drives in Plug-in Hybrid Electric Vehicles with Flexible Energy Conversion

    DEFF Research Database (Denmark)

    Gan, Chun; Wu, Jianhua; Hu, Yihua

    2017-01-01

    This paper presents an integrated multilevel converter of switched reluctance motors (SRMs) fed by a modular front-end circuit for plug-in hybrid electric vehicle (PHEV) applications. Several operating modes can be achieved by changing the on-off states of the switches in the front-end circuit. I...

  12. Research on Inferring ELECTRE-III’s Parameters with Fuzzy information and A Case on Naval Gun Weapon System Integration

    Directory of Open Access Journals (Sweden)

    Sun Shi Yan

    2016-01-01

    Full Text Available Multiple attributes decision making (MADM method is an important measure for system integration. Robustness analysis on MADM is a hotspot in these years which wins academe’s great attention, and is supposed to be an effective way when countering imperfect information. Setting parameters in ELECTRE-III’s is a vital and difficult step. In this paper, a method of inferring ELECTRE-III’s parameters with fuzzy information based on robustness analysis is presented. First, ELECTRE-III is transformed into a continuous smooth function of each parameter vector. Then, robustness analysis structure and a parameters inferring algorithm are provided by maximizing robustness margin based on mathematics programming. Moreover, how to resolve the programming problem is also discussed. At last, a illustrative example of Naval Gun Weapon System Integration is put forward.

  13. Electromagnetic Field Analysis of an Electric Dipole Antenna Based on a Surface Integral Equation in Multilayered Dissipative Media

    Directory of Open Access Journals (Sweden)

    Yidong Xu

    2017-07-01

    Full Text Available In this paper, a novel method based on the Poggio–Miller–Chang-Harrington–Wu–Tsai (PMCHWT integral equation is presented to study the electromagnetic fields excited by vertical or horizontal electric dipoles in the presence of a layered region which consists of K-layered dissipative media and the air above. To transform the continuous integral equation into a block tridiagonal matrix with the feature of convenient solution, the Rao–Wilton–Glisson (RWG functions are introduced as expansion and testing functions. The electromagnetic fields excited by an electric dipole are calculated and compared with the available results, where the electric dipole antenna is buried in the non-planar air–sea–seabed, air–rock–earth–mine, and multilayered sphere structures. The analysis and computations demonstrate that the method exhibits high accuracy and solving performance in the near field propagation region.

  14. 77 FR 15372 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2012-03-15

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public... Secretary for Health, Office of the Surgeon General of the United States Public Health Service. ACTION... Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory Group...

  15. 76 FR 58007 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2011-09-19

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public... Secretary for Health, Office of the Surgeon General of the United States Public Health Service. ACTION... Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory Group...

  16. 78 FR 38345 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2013-06-26

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health AGENCY: Office of the Surgeon General of the United States Public Health Service, Office of the... Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory Group...

  17. 78 FR 14798 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2013-03-07

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public... Secretary for Health, Office of the Surgeon General of the United States Public Health Service. ACTION... ] Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory Group...

  18. 78 FR 48877 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2013-08-12

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health AGENCY: Office of the Surgeon General of the United States Public Health Service, Office of the... Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory Group...

  19. 78 FR 69853 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2013-11-21

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health AGENCY: Office of the Surgeon General of the United States Public Health Service, Office of the... Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory Group...

  20. Friends forever? The Role of the Visegrad Group and European Integration

    Directory of Open Access Journals (Sweden)

    Schmidt Andrea

    2016-12-01

    Full Text Available The Visegrad Group celebrated its 25th anniversary in February 2016. Established as an initiative of three statesmen from the Central and Eastern European (CEE region, this cooperation has experienced booms and crises. The aim of this paper is to analyse the function of this regional integration in the years following the end of bipolar system as Visegrad Group members headed down the road to Euro-Atlantic integration. To this end, I apply different theoretical approaches and attempt to explain the influence of key former politicians as well as new scenarios for the Visegrad Group’s position in the European Union. This analysis also covers the latest foreign policy changes and challenges facing CEE due to the involvement of a wider region that creates a counter-balance to the core EU. Statistical data and official documents from the Visegrad Group’s website strengthen these findings.

  1. Role of National Support Policy in the large-scale integration of DER into the European electricity market

    DEFF Research Database (Denmark)

    ten Donkelaar, Michael; Klinge Jacobsen, Henrik

    2008-01-01

    This report concerns a study of the DER support schemes in the different EU Member States, their effectiveness and if necessary how these might be moulded to become more cost-effective in the future to integrate much larger shares of DER in the European electricity supply system. The report is part...... of a set of reports on DER integration issues and together they present a full and complete report on key issues of policy support, required changes in regulation and other issues that hamper more DER integration in supply....

  2. Electro-optic ring resonators in integrated optics for miniature electric field sensors

    Science.gov (United States)

    Ruege, Alexander Charles

    This dissertation addresses two important aspects regarding the sensing of radio-frequency electromagnetic fields using integrated optical ring resonator devices. The first topic involves the theoretical design, fabrication and demonstration of a new field sensor based on electro-optically (EO) active integrated optical ring resonators. The second topic addresses the problem of enhancing the response from a single-mode ring resonator of a given ring waveguide loss through modifications in the device geometry. The miniature integrated optical EO ring resonator sensor consists of low-dielectric constant polymers, is metal-free and is supported by a thin, flexible substrate. The low-invasive platform is achieved through the development of a new fabrication process. The waveguide cores of the devices are constructed of polycarbonate doped with the EO chromophore Disperse Red 1 and are poled using the contact poling method. The measured loaded quality factors of the poled EO rings are between 15,600 and 18,900. The fields emanating from a microstrip resonator circuit at 3.9 GHz are measured. It is determined that the measured modulation from the four-ring linear array is largest when the optical wavelength is biased on the steep slopes of the resonance lineshapes as theoretically predicted. Using electric field values obtained from electromagnetic simulations of the microstrip circuit, the EO coefficient is 0.72 pm/V. The sensitivity for electric fields in free-space field is 142.2 V / (m Hz0.5). The sensitivity is obtained for an off-resonance optical power of -9 dBm at an optical wavelength near 1550 nm, a photoreceiver conversion gain of 900 V/W, and a system impedance of 50 ohm. Also, sensing from asymmetric lineshapes due to the bistable effect in the ring resonators is also demonstrated. This EO field sensing demonstration is the first reported using EO ring resonator sensors built on a metal-free flexible integrated optics platform. The second part of this

  3. Treatment integrity of elaborated semantic feature analysis aphasia therapydelivered in individual and group settings

    OpenAIRE

    Kladouchou, V.; Papathanasiou, I.; Efstratiadou, E. A.; Christaki, V.; Hilari, K.

    2017-01-01

    Background & Aims\\ud \\ud This study ran within the framework of the Thales Aphasia Project that investigated the efficacy of elaborated semantic feature analysis (ESFA). We evaluated the treatment integrity (TI) of ESFA, i.e., the degree to which therapists implemented treatment as intended by the treatment protocol, in two different formats: individual and group therapy.\\ud \\ud Methods & Procedures\\ud \\ud Based on the ESFA manual, observation of therapy videos and TI literature, we developed...

  4. Integration of individual and social information for decision-making in groups of different sizes

    Science.gov (United States)

    Goïame, Sidney; O'Connor, David A.; Dreher, Jean-Claude

    2017-01-01

    When making judgments in a group, individuals often revise their initial beliefs about the best judgment to make given what others believe. Despite the ubiquity of this phenomenon, we know little about how the brain updates beliefs when integrating personal judgments (individual information) with those of others (social information). Here, we investigated the neurocomputational mechanisms of how we adapt our judgments to those made by groups of different sizes, in the context of jury decisions for a criminal. By testing different theoretical models, we showed that a social Bayesian inference model captured changes in judgments better than 2 other models. Our results showed that participants updated their beliefs by appropriately weighting individual and social sources of information according to their respective credibility. When investigating 2 fundamental computations of Bayesian inference, belief updates and credibility estimates of social information, we found that the dorsal anterior cingulate cortex (dACC) computed the level of belief updates, while the bilateral frontopolar cortex (FPC) was more engaged in individuals who assigned a greater credibility to the judgments of a larger group. Moreover, increased functional connectivity between these 2 brain regions reflected a greater influence of group size on the relative credibility of social information. These results provide a mechanistic understanding of the computational roles of the FPC-dACC network in steering judgment adaptation to a group’s opinion. Taken together, these findings provide a computational account of how the human brain integrates individual and social information for decision-making in groups. PMID:28658252

  5. Performance of Generating Plant: Managing the Changes. Supporting paper: The evolution of the electricity sector and renewable sources in Italy: opportunities and problems for wind power integration

    Energy Technology Data Exchange (ETDEWEB)

    Salvaderi, Luigi [IEEE Fellow (Italy)

    2008-05-15

    The WEC Committee on the Performance of Generating Plant (PGP) has been collecting and analysing power plant performance statistics worldwide for more than 30 years and has produced regular reports, which include examples of advanced techniques and methods for improving power plant performance through benchmarking. A series of reports from the various working groups was issued in 2008. This document serves as a supporting paper. Sections include: features of Italian energy and electricity; the evolution of liberalisation; support mechanism for renewables; connection to wind farm transmission network; wind source integration into power system; and, final comments.

  6. Group Development and Integration in a Cross-Disciplinary and Intercultural Research Team

    Science.gov (United States)

    Kirk-Lawlor, Naomi; Allred, Shorna

    2017-04-01

    Cross-disciplinary research is necessary to solve many complex problems that affect society today, including problems involving linked social and environmental systems. Examples include natural resource management or scarcity problems, problematic effects of climate change, and environmental pollution issues. Intercultural research teams are needed to address many complex environmental matters as they often cross geographic and political boundaries, and involve people of different countries and cultures. It follows that disciplinarily and culturally diverse research teams have been organized to investigate and address environmental issues. This case study investigates a team composed of both monolingual and bilingual Chilean and US university researchers who are geoscientists, engineers and economists. The objective of this research team was to study both the natural and human parts of a hydrologic system in a hyper-arid region in northern Chile. Interviews ( n = 8) addressed research questions focusing on the interaction of cross-disciplinary diversity and cultural diversity during group integration and development within the team. The case study revealed that the group struggled more with cross-disciplinary challenges than with intercultural ones. Particularly challenging ones were instances the of disciplinary crosstalk, or hidden misunderstandings, where team members thought they understood their cross-disciplinary colleagues, when in reality they did not. Results showed that translation served as a facilitator to cross-disciplinary integration of the research team. The use of translation in group meetings as a strategy for effective cross-disciplinary integration can be extended to monolingual cross-disciplinary teams as well.

  7. Financial Measures for Electric Vehicles:Supporting the Integration of Renewable Energy in the Mobility Sector in Germany

    Directory of Open Access Journals (Sweden)

    Stefan Bickert

    2014-02-01

    Full Text Available Electric vehicles (EV are able to support the transition of sectors towards sustainability. The operation of these vehicles with renewable energies saves local and global emissions. Furthermore, fluctuating renewable energies can be integrated in existing energy systems by using electric vehicles for grid services. Thus, implementation of advantages requires market establishment of electric vehicles. The article provides a review on potentials of market development by comparing and studying costs of electric and conventional vehicles as well as effects of financial measures on costs of EV. These cost comparisons are based on market data and predictions of cost developments for private consumers in Germany. Costs are analysed by an economic model of Total Cost of Ownership (TCO, aiming to display financial proportionality between vehicles in different years of acquisition (2010 to 2030. In a further step, external financial measures are analysed and integrated in the cost model as one possibility to enhance and secure the market introduction. Findings demonstrate that higher costs of acquisition of electric vehicles cannot be compensated by lower costs of operation. While mobility costs of conventionally vehicles stay constant or even increase during the considered years, mobility costs of electric vehicles significantly decrease especially in the upcoming years. In all cases mobility costs of electric vehicles exceed costs of conventional vehicles, but differences are reduced from 19€ct in 2010 to 3€ct in 2030. Cost decreases of the battery have high influence on the increasing financial comparability of EV. Concerning financial measures especially a differentiation of energy prices and a compensation of grid services can help to decrease total costs of EV and to manage a shift from fossil energy resources to electricity in the mobility sector. The existing tax exemption for EV compensates only a little fraction (about 6% of the cost

  8. Treatment of Oil Wastewater and Electricity Generation by Integrating Constructed Wetland with Microbial Fuel Cell

    Directory of Open Access Journals (Sweden)

    Qiao Yang

    2016-11-01

    Full Text Available Conventional oil sewage treatment methods can achieve satisfactory removal efficiency, but energy consumption problems during the process of oil sewage treatment are worth attention. The integration of a constructed wetland reactor and a microbial fuel cell reactor (CW-MFC to treat oil-contaminated wastewater, compared with a microbial fuel cell reactor (MFC alone and a constructed wetland reactor (CW alone, was explored in this research. Performances of the three reactors including chemical oxygen demand (COD, oil removal, and output voltage generation were continuously monitored. The COD removals of three reactors were between 73% and 75%, and oil removals were over 95.7%. Compared with MFC, the CW-MFC with a MnO2 modified cathode produced higher power density and output voltage. Maximum power densities of CW-MFC and MFC were 3868 mW/m3 (102 mW/m2 and 3044 mW/m3 (80 mW/m2, respectively. The plants in CW-MFC play a positive role for reactor cathode potential. Both plants and cathode modification can improve reactor performance of electricity generation.

  9. Treatment of Oil Wastewater and Electricity Generation by Integrating Constructed Wetland with Microbial Fuel Cell.

    Science.gov (United States)

    Yang, Qiao; Wu, Zhenxing; Liu, Lifen; Zhang, Fengxiang; Liang, Shengna

    2016-11-01

    Conventional oil sewage treatment methods can achieve satisfactory removal efficiency, but energy consumption problems during the process of oil sewage treatment are worth attention. The integration of a constructed wetland reactor and a microbial fuel cell reactor (CW-MFC) to treat oil-contaminated wastewater, compared with a microbial fuel cell reactor (MFC) alone and a constructed wetland reactor (CW) alone, was explored in this research. Performances of the three reactors including chemical oxygen demand (COD), oil removal, and output voltage generation were continuously monitored. The COD removals of three reactors were between 73% and 75%, and oil removals were over 95.7%. Compared with MFC, the CW-MFC with a MnO₂ modified cathode produced higher power density and output voltage. Maximum power densities of CW-MFC and MFC were 3868 mW/m³ (102 mW/m²) and 3044 mW/m³ (80 mW/m²), respectively. The plants in CW-MFC play a positive role for reactor cathode potential. Both plants and cathode modification can improve reactor performance of electricity generation.

  10. Distributed Generation Integration in the Electric Grid: Energy Storage System for Frequency Control

    Directory of Open Access Journals (Sweden)

    Maurizio Delfanti

    2014-01-01

    Full Text Available During the last few years generation from renewable energy sources (RESs has grown considerably in European electrical networks. Transmission system operators are greatly concerned about the impact of RESs on the operational security and efficiency of their networks and more in general of the ENTSO-E interconnected system. Grid codes are to be revised in order to harmonise the rules regarding the connection of RES power plants. A main issue concerns frequency control: frequency is greatly affected by RESs intermittency and its deviations must be limited as much as possible in order to guarantee a suitable level of power quality. To improve frequency stability, in the future, Grid codes could extend frequency control requirements also to RES units, whereas today they are applied only to conventional power plants. Energy storage systems can be a possible solution to increase the flexibility and performance of RES power plants: they allow generators to modulate their power injections without wasting renewable energy. In this paper, the authors studied the suitability of extending frequency control to RES units integrating them with energy storage systems. In particular, the paper focuses on the impact of frequency control on the storage lifetime by analysing the power charge/discharge in response to real frequency oscillations.

  11. Recovery of Zn from acid mine water and electric arc furnace dust in an integrated process.

    Science.gov (United States)

    Carranza, Francisco; Romero, Rafael; Mazuelos, Alfonso; Iglesias, Nieves

    2016-01-01

    In this paper, the purification of acid mine water and the treatment of electric arc furnace dust (EAFD) are integrated into one process with the aim of recovering the Zn content of both effluent and waste. Zinc recovery can reduce the cost of their environmental management: purified acid mine water is discharged after removing all metals; EAFD ceases to be hazardous waste; and Zn is valorised. The process consists of the recovery of Zn as zinc oxide and its purification into commercial products. First, EAFD is leached with acid water and the dissolved metals are selectively precipitated as hydroxides. After EADF leaching, ferrous iron is bio-oxidized and Fe and Al are then precipitated; in the following stage, Cu, Ni, Co and Cd are cemented and finally Zn is precipitated as ZnO. In order to purify water that finally is discharged to a river, lime is used as the neutralizing agent, which results in a precipitate of mainly gypsum, MnO, and ZnO. From the impure zinc oxide produced, various alternatives for the attainment of commercial products, such as basic zinc carbonate and electrolytic zinc, are studied in this work. Copyright © 2015 Elsevier Ltd. All rights reserved.

  12. Improvement of integrated electric field sensor based on hybrid segmented slot waveguide

    Science.gov (United States)

    Al-Tarawni, Musab A. M.; Bakar, A. Ashrif A.; Rifqi Md Zain, Ahmad; Tarawneh, Mou'ad A.; Ahmad, Sahrim Hj.

    2017-10-01

    Integrated electric-field (E-field) sensors are commonly used devices in E-field sensing. However, distortion in the modulated signal due to high half-voltage (Vπ) and obtaining a low-frequency response are challenging issues in low-frequency AC E-field sensors. The aim of this study is to investigate a modification by adding a Si layer beneath a segmented slot waveguide (SSW) and optimizing the hybrid SSW as the core of a sensor to determine the sensor features in terms of the frequency response and sensitivity. The results of reducing the Si-layer thickness and segment width with high periodicity revealed a high modulation efficiency for very low-frequency AC E-field sensors and simultaneously expanded the minimum limit of detection by incorporating sensors in very small AC E-fields. This study validated the feasibility and efficiency of using a hybrid SSW as the core of highly sensitive low-frequency AC E-field sensors.

  13. Integrated hydrometallurgical process for production of zinc from electric arc furnace dust in alkaline medium.

    Science.gov (United States)

    Youcai, Z; Stanforth, R

    2000-12-30

    In this study, a novel and integrated hydrometallurgical process for the production of zinc powder from electric arc furnace (EAF) dust in alkaline medium is reported. The dust is firstly hydrolysed in water, and then fused in caustic soda at 350 degrees C for 1h, followed by leaching in alkaline solution in which both zinc and lead are effectively extracted. Zinc powder is then produced by electrowinning from the leach solution after the lead is selectively removed by precipitation using sodium sulphide as precipitant. The EAF dust tested contained 25% Zn, 1.8% Pb and 33% Fe. It was found that 38% of zinc and 68% of lead could be extracted from the dust when leached directly in caustic soda solution. Leaching of zinc increased to 80% when dust was directly fused with caustic soda followed by alkaline leaching. However, the leaching further increased to 95% when the dust was hydrolysed first with water before fusion. Zinc powder with a purity of 99.95% was then produced by electrowinning from the lead depleted solution. Stainless electrodes were used as both anode and cathode.

  14. Accelerating the Integration of Distributed Water Solutions: A Conceptual Financing Model from the Electricity Sector

    Science.gov (United States)

    Quesnel, Kimberly J.; Ajami, Newsha K.; Wyss, Noemi

    2017-11-01

    Modern challenges require new approaches to urban water management. One solution in the portfolio of potential strategies is the integration of distributed water infrastructure, practices, and technologies into existing systems. However, many practical barriers have prevented the widespread adoption of these systems in the US. The objective of this paper is to address these challenges by developing a conceptual model encompassing regulatory, financial, and governance components that can be used to incorporate new distributed water solutions into our current network. To construct the model, case studies of successfully implemented distributed electricity systems, specifically energy efficiency and renewable energy technologies, were examined to determine how these solutions have become prominent in recent years and what lessons can be applied to the water sector in a similar pursuit. The proposed model includes four action-oriented elements: catalyzing change, establishing funding sources, using resource pathways, and creating innovative governance structures. As illustrated in the model, the water sector should use suite of coordinated policies to promote change, engage end users through fiscal incentives, and encourage research, development and dissemination of new technologies over time.

  15. A Line Integral Representation of the Physical Optics Far Field from Plane PEC Scatterers Illuminated by Electric or Magnetic Hertzian Dipoles

    DEFF Research Database (Denmark)

    Arslanagic, S.; Meincke, Peter; Jørgensen, E.

    2002-01-01

    We derive a line integral representation of the physical optics (PO) scattered far field that yields the exact same result as the conventional surface radiation integral. This representation applies to a perfectly electrically conducting plane scatterer illuminated by electric or magnetic Hertzian...

  16. Thermal, high pressure, and electric field processing effects on plant cell membrane integrity and relevance to fruit and vegetable quality.

    Science.gov (United States)

    Gonzalez, Maria E; Barrett, Diane M

    2010-09-01

    Advanced food processing methods that accomplish inactivation of microorganisms but minimize adverse thermal exposure are of great interest to the food industry. High pressure (HP) and pulsed electric field (PEF) processing are commercially applied to produce high quality fruit and vegetable products in the United States, Europe, and Japan. Both microbial and plant cell membranes are significantly altered following exposure to heat, HP, or PEF. Our research group sought to quantify the degree of damage to plant cell membranes that occurs as a result of exposure to heat, HP, or PEF, using the same analytical methods. In order to evaluate whether new advanced processing methods are superior to traditional thermal processing methods, it is necessary to compare them. In this review, we describe the existing state of knowledge related to effects of heat, HP, and PEF on both microbial and plant cells. The importance and relevance of compartmentalization in plant cells as it relates to fruit and vegetable quality is described and various methods for quantification of plant cell membrane integrity are discussed. These include electrolyte leakage, cell viability, and proton nuclear magnetic resonance (¹H-NMR).

  17. An integrated deep electrical resistivity model of the Larderello geothermal field (Italy)

    Science.gov (United States)

    Rizzo, Enzo; Capozzoli, Luigi; De martino, Gregory; Godio, Alberto; Manzella, Adele; Perciante, Felice; Santilano, Alessandro

    2017-04-01

    A new deep electrical resistivity acquisition was carried out in Larderello geothermal area (Tuscania Region, Italy) by 3D Deep Electrical Resistivity Tomography (3D-DERT) and Magnetotelluric (M) acquisition. The investigated area is located close the Venelle2 well in the southern part of Larderello site, where there is the oldest field in the world under exploitation for power production (actual installed capacity is about 795 MWe). A vapour-dominated system is exploited to depth over 3500 m, with temperatures exceeding 350°C, from two different reservoirs. The Larderello area has been investigated by many geological and geophysical data of previous exploration projects but nowadays several critical issues on deep features of the field are still matter of debate, e.g., permeability distribution in the hydrothermal reservoir and the presence of fluids at supercritical condition at depth. The 3D-DERT system was designed by Surface-Surface and Surface-Hole electrode distributions in the area around Venelle2 well covering an area around 16km2. The well (kindly provided by Enel GP) was accessible down to 1.6 km with a temperature up to 250°C and a metallic casing down to 1 km. The in-hole thermal cable is characterized by n.12 flexible metallic electrodes with an electrodes space of 50m covering the open-hole portion (1050m-1600m). The surface electrodes are located around the Venelle2 hole on n.23 different positions connected to automatic dataloger to acquire the drop of potential and to transmitter device to inject the current (5-10A). The crucial task was the data processing, considering the large distance between the Tx and Rx systems that strongly reduces the signal to-noise ratio. To overcome this drawback, for each quadripole position the corresponding voltage signal was filtered, stored and processed with advanced statistical packages. The new 22 station were installed in the studied area and the data were carried out taking in account a permanent remote

  18. Network Theory Integrated Life Cycle Assessment for an Electric Power System

    Directory of Open Access Journals (Sweden)

    Heetae Kim

    2015-08-01

    Full Text Available In this study, we allocate Greenhouse gas (GHG emissions of electricity transmission to the consumers. As an allocation basis, we introduce energy distance. Energy distance takes the transmission load on the electricity energy system into account in addition to the amount of electricity consumption. As a case study, we estimate regional GHG emissions of electricity transmission loss in Chile. Life cycle assessment (LCA is used to estimate the total GHG emissions of the Chilean electric power system. The regional GHG emission of transmission loss is calculated from the total GHG emissions. We construct the network model of Chilean electric power grid as an undirected network with 466 nodes and 543 edges holding the topology of the power grid based on the statistical record. We analyze the total annual GHG emissions of the Chilean electricity energy system as 23.07 Mt CO2-eq. and 1.61 Mt CO2-eq. for the transmission loss, respectively. The total energy distance for the electricity transmission accounts for 12,842.10 TWh km based on network analysis. We argue that when the GHG emission of electricity transmission loss is estimated, the electricity transmission load should be separately considered. We propose network theory as a useful complement to LCA analysis for the complex allocation. Energy distance is especially useful on a very large-scale electric power grid such as an intercontinental transmission network.

  19. The Process Model of Group-Based Emotion: Integrating Intergroup Emotion and Emotion Regulation Perspectives.

    Science.gov (United States)

    Goldenberg, Amit; Halperin, Eran; van Zomeren, Martijn; Gross, James J

    2016-05-01

    Scholars interested in emotion regulation have documented the different goals and strategies individuals have for regulating their emotions. However, little attention has been paid to the regulation of group-based emotions, which are based on individuals' self-categorization as a group member and occur in response to situations perceived as relevant for that group. We propose a model for examining group-based emotion regulation that integrates intergroup emotions theory and the process model of emotion regulation. This synergy expands intergroup emotion theory by facilitating further investigation of different goals (i.e., hedonic or instrumental) and strategies (e.g., situation selection and modification strategies) used to regulate group-based emotions. It also expands emotion regulation research by emphasizing the role of self-categorization (e.g., as an individual or a group member) in the emotional process. Finally, we discuss the promise of this theoretical synergy and suggest several directions for future research on group-based emotion regulation. © 2015 by the Society for Personality and Social Psychology, Inc.

  20. Simple group password-based authenticated key agreements for the integrated EPR information system.

    Science.gov (United States)

    Lee, Tian-Fu; Chang, I-Pin; Wang, Ching-Cheng

    2013-04-01

    The security and privacy are important issues for electronic patient records (EPRs). The goal of EPRs is sharing the patients' medical histories such as the diagnosis records, reports and diagnosis image files among hospitals by the Internet. So the security issue for the integrated EPR information system is essential. That is, to ensure the information during transmission through by the Internet is secure and private. The group password-based authenticated key agreement (GPAKE) allows a group of users like doctors, nurses and patients to establish a common session key by using password authentication. Then the group of users can securely communicate by using this session key. Many approaches about GAPKE employ the public key infrastructure (PKI) in order to have higher security. However, it not only increases users' overheads and requires keeping an extra equipment for storing long-term secret keys, but also requires maintaining the public key system. This investigation presents a simple group password-based authenticated key agreement (SGPAKE) protocol for the integrated EPR information system. The proposed SGPAKE protocol does not require using the server or users' public keys. Each user only remembers his weak password shared with a trusted server, and then can obtain a common session key. Then all users can securely communicate by using this session key. The proposed SGPAKE protocol not only provides users with convince, but also has higher security.

  1. Electric Vehicle Based Battery Storages for Large Scale Wind Power Integration in Denmark

    DEFF Research Database (Denmark)

    Pillai, Jayakrishnan Radhakrishna

    In the recent years, the electric vehicles (EVs) have drawn great attention world wide as a feasible solution for clean transportation. The electric vehicle technology is not new as it was introduced in the mid 19th century. The low battery capacity, driving range and superior gasoline cars had...... resulted in the demise of electric cars in the 1930s. However, with the advancement of new high density battery technologies and power electronic converters, it is now viable to produce electric cars of higher efficiency and driving range. The performance and durability of the battery technology...... is improving on a rapid scale and the battery cost is also reducing which could enable the electric cars to be competitive in the market. The electric vehicles could also benefit the electricity sector in supporting more renewable energy which is also one of the most important driving forces in its promotion...

  2. The Future Organization of Danish Electricity Market for Integrating DERs - a View of FlexPower Project

    DEFF Research Database (Denmark)

    Li, Yang; Zhang, Chunyu; Ding, Yi

    2013-01-01

    This paper presents a view of the Danish FlexPower project to reform the existing electricity market by coordinating vast Distributed Energy Resources (DERs) for integration in future scenarios. Aiming to maximize the preservation of the existing market structure, Aggregator, the key player...... in mobilizing small-scale DERs to participate in the existing electricity market, is proposed in this paper to cope with the day-ahead, intra-day and regulating power market. Possible future organizations of different time-scale markets are also introduced and discussed with the precise roles...

  3. Report of the Working Group on Integrated Translational Research in DNA Repair.

    Science.gov (United States)

    Reinlib, Leslie; Friedberg, Errol C

    2007-01-04

    On September 28-29, 2006, the National Institute of Environmental Health Sciences led a team from the National Institutes of Health in hosting a Working Group on Integrated Translational Research in DNA Repair, in Berkeley, CA. In recognition of the far-reaching goals for this area of investigation, the Working Group was charged with conceiving a vision to facilitate projects that would apply the lessons of DNA Repair research to clinical application and public health. The participants included basic and physician scientists working in the various areas of DNA Repair and genome stability, as well as agency representatives of the National Cancer Institute and the National Institute of General Medical Sciences. In constructing this vision of practical research recommendations, the Working Group was asked to identify roadblocks to progress, suggest enabling technologies, and to consider areas that are ripe for translation. This report summarizes the rationale for this initiative and the recommendations that emerged.

  4. The Integration of Renewable Energy Sources into Electric Power Distribution Systems, Vol. II Utility Case Assessments

    Energy Technology Data Exchange (ETDEWEB)

    Zaininger, H.W.

    1994-01-01

    Electric utility distribution system impacts associated with the integration of renewable energy sources such as photovoltaics (PV) and wind turbines (WT) are considered in this project. The impacts are expected to vary from site to site according to the following characteristics: the local solar insolation and/or wind characteristics, renewable energy source penetration level, whether battery or other energy storage systems are applied, and local utility distribution design standards and planning practices. Small, distributed renewable energy sources are connected to the utility distribution system like other, similar kW- and MW-scale equipment and loads. Residential applications are expected to be connected to single-phase 120/240-V secondaries. Larger kW-scale applications may be connected to three+phase secondaries, and larger hundred-kW and y-scale applications, such as MW-scale windfarms, or PV plants, may be connected to electric utility primary systems via customer-owned primary and secondary collection systems. In any case, the installation of small, distributed renewable energy sources is expected to have a significant impact on local utility distribution primary and secondary system economics. Small, distributed renewable energy sources installed on utility distribution systems will also produce nonsite-specific utility generation system benefits such as energy and capacity displacement benefits, in addition to the local site-specific distribution system benefits. Although generation system benefits are not site-specific, they are utility-specific, and they vary significantly among utilities in different regions. In addition, transmission system benefits, environmental benefits and other benefits may apply. These benefits also vary significantly among utilities and regions. Seven utility case studies considering PV, WT, and battery storage were conducted to identify a range of potential renewable energy source distribution system applications. The

  5. Increasing the Cruise Range and Reducing the Capital Cost of Electric Vehicles by Integrating Auxiliary Unit with the Traction Drive

    Directory of Open Access Journals (Sweden)

    N. Satheesh Kumar

    2016-01-01

    Full Text Available Poor cruise performance of Electric Vehicles (EVs continues to be the primary reason that impends their market penetration. Adding more battery to extend the cruise range is not a viable solution as it increases the structural weight and capital cost of the EV. Simulations identified that a vehicle spends on average 15% of its total time in braking, signifying an immense potential of the utilization of regenerative braking mechanism. Based on the analysis, a 3 kW auxiliary electrical unit coupled with the traction drive during braking events increases the recoverable energy by 8.4%. In addition, the simulation revealed that, on average, the energy drawn from the battery is reduced by 3.2% when traction drive is integrated with the air-conditioning compressor (an auxiliary electrical load. A practical design solution of the integrated unit is also included in the paper. Based on the findings, it is evident that the integration of an auxiliary unit with the traction drive results in enhancing the energy capturing capacity of the regenerative braking mechanism and decreases the power consumed from the battery. Further, the integrated unit boosts other advantages such as reduced material cost, improved reliability, and a compact and lightweight design.

  6. Integration of Biochemical and Electrical Signaling-Multiscale Model of the Medium Spiny Neuron of the Striatum

    Science.gov (United States)

    Mattioni, Michele; Le Novère, Nicolas

    2013-01-01

    Neuron behavior results from the interplay between networks of biochemical processes and electrical signaling. Synaptic plasticity is one of the neuronal properties emerging from such an interaction. One of the current approaches to study plasticity is to model either its electrical aspects or its biochemical components. Among the chief reasons are the different time scales involved, electrical events happening in milliseconds while biochemical cascades respond in minutes or hours. In order to create multiscale models taking in consideration both aspects simultaneously, one needs to synchronize the two models, and exchange relevant variable values. We present a new event-driven algorithm to synchronize different neuronal models, which decreases computational time and avoids superfluous synchronizations. The algorithm is implemented in the TimeScales framework. We demonstrate its use by simulating a new multiscale model of the Medium Spiny Neuron of the Neostriatum. The model comprises over a thousand dendritic spines, where the electrical model interacts with the respective instances of a biochemical model. Our results show that a multiscale model is able to exhibit changes of synaptic plasticity as a result of the interaction between electrical and biochemical signaling. Our synchronization strategy is general enough to be used in simulations of other models with similar synchronization issues, such as networks of neurons. Moreover, the integration between the electrical and the biochemical models opens up the possibility to investigate multiscale process, like synaptic plasticity, in a more global manner, while taking into account a more realistic description of the underlying mechanisms. PMID:23843966

  7. Integrative group-based cognitive rehabilitation efficacy in multiple sclerosis: a randomized clinical trial.

    Science.gov (United States)

    Rilo, Oiane; Peña, Javier; Ojeda, Natalia; Rodríguez-Antigüedad, Alfredo; Mendibe-Bilbao, Mar; Gómez-Gastiasoro, Ainara; DeLuca, John; Chiaravalloti, Nancy; Ibarretxe-Bilbao, Naroa

    2018-01-01

    This study aimed to determine the efficacy of the integrative group-based cognitive rehabilitation programme, REHACOP, on improving cognitive functions in multiple sclerosis (MS). Fourty-two MS patients were randomized to the treatment programme REHACOP (n = 21) or waiting list control condition (n = 21). The REHACOP group received cognitive rehabilitation in group format for three months focused on attention, processing speed, learning and memory, language, executive functioning, and social cognition. Patients completed a neuropsychological assessment at baseline and follow-up, which included tests of attention, processing speed, working memory, verbal memory, verbal fluency, and executive functioning. Repeated measures multivariate analysis of covariance (MANCOVA) was used to determine the efficacy of the cognitive rehabilitation programme. Group × Time interactions revealed significant improvements in the REHACOP group as compared with the control group for processing speed (p = 0.011, np2 = 0.16), working memory (p = 0.014, np2 = 0.15), verbal memory (p = 0.025, np2 = 0.13), and executive functioning (p = 0.024, np2 = 0.13), showing medium-large effect sizes. Patients receiving REHACOP showed improvements in several cognitive domains. This preliminary study thus provides evidence supporting the efficacy of this integrative group-based cognitive rehabilitation intervention in MS. Future research should confirm these findings, examine the impact of the treatment on everyday life functioning and explore the presence of brain changes associated with cognitive rehabilitation. Implications for rehabilitation This study provides initial evidence for integrative group-based cognitive rehabilitation efficacy in MS patients through the implementation of the REHACOP cognitive rehabilitation programme. Patients received cognitive rehabilitation for three months (3 one-hour-sessions per week) focused on training attention

  8. Integrable defects in affine Toda field theory and infinite-dimensional representations of quantum groups

    Energy Technology Data Exchange (ETDEWEB)

    Corrigan, E., E-mail: edward.corrigan@durham.ac.u [Department of Mathematical Sciences, University of Durham, Durham DH1 3LE (United Kingdom); Zambon, C., E-mail: cristina.zambon@durham.ac.u [Department of Mathematical Sciences, University of Durham, Durham DH1 3LE (United Kingdom)

    2011-07-21

    Transmission matrices for two types of integrable defect are calculated explicitly, first by solving directly the nonlinear transmission Yang-Baxter equations, and second by solving a linear intertwining relation between a finite-dimensional representation of the relevant Borel subalgebra of the quantum group underpinning the integrable quantum field theory and a particular infinite-dimensional representation expressed in terms of sets of generalised 'quantum' annihilation and creation operators. The principal examples analysed are based on the a{sub 2}{sup (2)} and a{sub n}{sup (1)} affine Toda models but examples of similar infinite-dimensional representations for quantum Borel algebras for all other affine Toda theories are also provided.

  9. 76 FR 26300 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2011-05-06

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public... Secretary for Health, Office of the Surgeon General of the United States Public Health Service. ACTION... the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory...

  10. 76 FR 16776 - Advisory Group on Prevention, Health Promotion, and Integrative and Public Health; Notice of Meeting

    Science.gov (United States)

    2011-03-25

    ... HUMAN SERVICES Advisory Group on Prevention, Health Promotion, and Integrative and Public Health; Notice... Assistant Secretary for Health, Office of the Surgeon General of the United States Public Health Service... for the Advisory Group on Prevention, Health Promotion, and Integrative and Public ] Health (the...

  11. 76 FR 67731 - Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2011-11-02

    ... HUMAN SERVICES Meeting of the Advisory Group on Prevention, Health Promotion, and Integrative and Public... Secretary for Health, Office of the Surgeon General of the United States Public Health Service. ACTION... the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health (the ``Advisory...

  12. Method to Reduce Muscle Fatigue During Transcutaneous Neuromuscular Electrical Stimulation in Major Knee and Ankle Muscle Groups.

    Science.gov (United States)

    Sayenko, Dimitry G; Nguyen, Robert; Hirabayashi, Tomoyo; Popovic, Milos R; Masani, Kei

    2015-09-01

    A critical limitation with transcutaneous neuromuscular electrical stimulation as a rehabilitative approach is the rapid onset of muscle fatigue during repeated contractions. We have developed a method called spatially distributed sequential stimulation (SDSS) to reduce muscle fatigue by distributing the center of electrical field over a wide area within a single stimulation site, using an array of surface electrodes. To extend the previous findings and to prove feasibility of the method by exploring the fatigue-reducing ability of SDSS for lower limb muscle groups in the able-bodied population, as well as in individuals with spinal cord injury (SCI). SDSS was delivered through 4 active electrodes applied to the knee extensors and flexors, plantarflexors, and dorsiflexors, sending a stimulation pulse to each electrode one after another with 90° phase shift between successive electrodes. Isometric ankle torque was measured during fatiguing stimulations using SDSS and conventional single active electrode stimulation lasting 2 minutes. We demonstrated greater fatigue-reducing ability of SDSS compared with the conventional protocol, as revealed by larger values of fatigue index and/or torque peak mean in all muscles except knee flexors of able-bodied individuals, and in all muscles tested in individuals with SCI. Our study has revealed improvements in fatigue tolerance during transcutaneous neuromuscular electrical stimulation using SDSS, a stimulation strategy that alternates activation of subcompartments of muscles. The SDSS protocol can provide greater stimulation times with less decrement in mechanical output compared with the conventional protocol. © The Author(s) 2014.

  13. From regulation through integration to? Three scenarios for the future of electricity in Europe

    Energy Technology Data Exchange (ETDEWEB)

    Larsen, E.R. [Department of Management, University of Bologna, Bologna (Italy)

    1998-04-01

    A major change is underway in the European Union electricity sector, where the electricity market will be partly opened for competition. There is a required minimum opening of the generation market, although countries may exceed it. However, given the very different structures, technological mixes and national cultures, will a single market be possible? This paper outlines three different scenarios of how the European electricity market might evolve. (au)

  14. Immuno Nanoparticles Integrated Electrical Control of Targeted Cancer Cell Development Using Whole Cell Bioelectronic Device

    Science.gov (United States)

    Hondroulis, Evangelia; Zhang, Rui; Zhang, Chengxiao; Chen, Chunying; Ino, Kosuke; Matsue, Tomokazu; Li, Chen-Zhong

    2014-01-01

    Electrical properties of cells determine most of the cellular functions, particularly ones which occur in the cell's membrane. Manipulation of these electrical properties may provide a powerful electrotherapy option for the treatment of cancer as cancerous cells have been shown to be more electronegative than normal proliferating cells. Previously, we used an electrical impedance sensing system (EIS) to explore the responses of cancerous SKOV3 cells and normal HUVEC cells to low intensity (electrotherapy for clinical and drug delivery applications. PMID:25057316

  15. Multi-agent based modeling for electric vehicle integration in a distribution network operation

    DEFF Research Database (Denmark)

    Hu, Junjie; Morais, Hugo; Lind, Morten

    2016-01-01

    operator (DSO) technical agent and ii) DSO market agents that both belong to the top layer of the hierarchy and their roles are to manage the distribution network by avoiding grid congestions and using congestion prices to coordinate the energy scheduled; iii) Electric vehicle virtual power plant agents...... are in the middle level of the hierarchy and their roles are to manage the charge process of the electric vehicles; iv) Electric vehicle agents are placed at the bottom layer of the hierarchy and they represent electric vehicle owners with different users’ profiles. To demonstrate the coordination behavior...

  16. The effectiveness of support groups in Asian breast cancer patients: An integrative review

    Directory of Open Access Journals (Sweden)

    Fang-Yu Chou

    2016-01-01

    Full Text Available Cancer support group has been studied as an intervention to improve patient psychosocial well-being. The effectiveness of support groups among Asian breast cancer (BC patients has been unclear and received limited attention to the evidence of its effectiveness. The social-cognitive processing theory underlies the principles of support groups and advocates that a positive, supportive social environment can improve cognitive processing. The purpose of this paper is to present an integrative review of research evidence on the effectiveness of cancer support groups with Asian BC patients. Empirical studies related to support group among Asian and Asian American BC patients published between 1982 and April 2014 are reviewed. There are 15 studies selected (12 from the Asian-Pacific region and 3 from Western countries. The review includes 1 qualitative study, 3 descriptive studies, 1 mixed method design, and 10 experimental or quasi-experimental studies. The support group intervention activities include psycho-educational program such as health education, problem-solving, and stress management. These studies support the effectiveness of support group in alleviating psychological distress and supporting quality of life of Asian BC women. Overall, there is limited research on the use and effectiveness of support groups with Asians cancer patients in Asia and in Western countries. Without accounting for Asian immigrants overseas, the Asian population is expected to grow from 4.3 to 5.3 billion by 2050. As cancer patients become more diverse due to global emigration, more rigorous studies examining the effectiveness of psychosocial intervention among transcultural cancer patients are needed.

  17. The Effectiveness of Support Groups in Asian Breast Cancer Patients: An Integrative Review.

    Science.gov (United States)

    Chou, Fang-Yu; Lee-Lin, Frances; Kuang, Lily Y

    2016-01-01

    Cancer support group has been studied as an intervention to improve patient psychosocial well-being. The effectiveness of support groups among Asian breast cancer (BC) patients has been unclear and received limited attention to the evidence of its effectiveness. The social-cognitive processing theory underlies the principles of support groups and advocates that a positive, supportive social environment can improve cognitive processing. The purpose of this paper is to present an integrative review of research evidence on the effectiveness of cancer support groups with Asian BC patients. Empirical studies related to support group among Asian and Asian American BC patients published between 1982 and April 2014 are reviewed. There are 15 studies selected (12 from the Asian-Pacific region and 3 from Western countries). The review includes 1 qualitative study, 3 descriptive studies, 1 mixed method design, and 10 experimental or quasi-experimental studies. The support group intervention activities include psycho-educational program such as health education, problem-solving, and stress management. These studies support the effectiveness of support group in alleviating psychological distress and supporting quality of life of Asian BC women. Overall, there is limited research on the use and effectiveness of support groups with Asians cancer patients in Asia and in Western countries. Without accounting for Asian immigrants overseas, the Asian population is expected to grow from 4.3 to 5.3 billion by 2050. As cancer patients become more diverse due to global emigration, more rigorous studies examining the effectiveness of psychosocial intervention among transcultural cancer patients are needed.

  18. A bi-level programming for multistage co-expansion planning of the integrated gas and electricity system

    DEFF Research Database (Denmark)

    Zeng, Qing; Zhang, Baohua; Fang, Jiakun

    2017-01-01

    power systems. The system operation is optimized and embedded in the planning horizon. A bi-level multi-stage programming problem is formulated to minimize the investment cost plus the operational cost. The upper-level optimizes the expansion plan and determines the network topology as well......) and the interior point method (IPM). The BPSO is used for the upper-level sub-problem, and the IPM is adopted for the lower-level sub-problem. Numerical case studies have been carried out on the practical gas and electricity transmission network in western Denmark. Simulation results demonstrate the effectiveness......This paper focuses on the coordinated expansion planning of the integrated natural gas and electrical power systems with bi-directional energy conversion. Both the Gas-fired Power Generations (GPGs) and Power-to-Gas stations (P2Gs) are considered as the linkages between the natural gas and electric...

  19. Monolithic nanoscale photonics-electronics integration in silicon and other group IV elements

    CERN Document Server

    Radamson, Henry

    2014-01-01

    Silicon technology is evolving rapidly, particularly in board-to-board or chip-to chip applications. Increasingly, the electronic parts of silicon technology will carry out the data processing, while the photonic parts take care of the data communication. For the first time, this book describes the merging of photonics and electronics in silicon and other group IV elements. It presents the challenges, the limitations, and the upcoming possibilities of these developments. The book describes the evolution of CMOS integrated electronics, status and development, and the fundamentals of silicon p

  20. Is the illite group the cause of high electrical conductivityin certain lithospheric areas?

    Directory of Open Access Journals (Sweden)

    M. Muschietti

    1998-06-01

    Full Text Available This article discusses the problem of the mineralogical-petrographic interpretation of the "anomalous" conductive layer inside the lithosphere, which has resulted from electromagnetic deep soundings. Three situations can be found: 1 a resistivity of less than 1 ? ·m in the Very High Conductivity Layer (VHCL; 2 a resistivity of 1÷100 ? ·m in the High Conductivity Layer (HCL; 3 a resistivity of 102 ÷ 103 ? ·m in the Continental Lower Crust (CLC. We have focused our attention on the HCL because of its widespread distribution. Most authors attribute HCL conductivity to the presence of salt water or graphitic materials, that are uniformly and continuously distributed inside rocks. Other hypotheses from the literature are the presence of oxides and/or sulphides, rock melting, and brine-bearing rocks. Each one of these elements can cause high electrical conductivity, depending on the petrophysical conditions, but much discussion involves the necessary physical continuity of the conductive elements. We forward one more hypothesis as follows. By means of experiments on rock samples from different geographical and deep areas, under simulated in situ physical conditions (e.g., pressure, temperature, saturation, we have found resistivity values similar to the in situ ones. Chemical, mineralogical, and petrographic analyses have shown the presence of large amounts of phyllosilicate minerals, such as illite. These minerals act in two ways: they produce the physical continuity of associated conductive minerals, and they decrease the resistivity of rocks. This second hypothesis is consistent with both the very widespread diffusion of illite inside the Earth's crust, and with the good conductivity found in depth.

  1. A function for binaural integration in auditory grouping and segregation in the inferior colliculus.

    Science.gov (United States)

    Nakamoto, Kyle T; Shackleton, Trevor M; Magezi, David A; Palmer, Alan R

    2015-03-15

    Responses of neurons to binaural, harmonic complex stimuli in urethane-anesthetized guinea pig inferior colliculus (IC) are reported. To assess the binaural integration of harmonicity cues for sound segregation and grouping, responses were measured to harmonic complexes with different fundamental frequencies presented to each ear. Simultaneously gated harmonic stimuli with fundamental frequencies of 125 Hz and 145 Hz were presented to the left and right ears, respectively, and recordings made from 96 neurons with characteristic frequencies >2 kHz in the central nucleus of the IC. Of these units, 70 responded continuously throughout the stimulus and were excited by the stimulus at the contralateral ear. The stimulus at the ipsilateral ear excited (EE: 14%; 10/70), inhibited (EI: 33%; 23/70), or had no significant effect (EO: 53%; 37/70), defined by the effect on firing rate. The neurons phase locked to the temporal envelope at each ear to varying degrees depending on signal level. Many of the cells (predominantly EO) were dominated by the response to the contralateral stimulus. Another group (predominantly EI) synchronized to the contralateral stimulus and were suppressed by the ipsilateral stimulus in a phasic manner. A third group synchronized to the stimuli at both ears (predominantly EE). Finally, a group only responded when the waveform peaks from each ear coincided. We conclude that these groups of neurons represent different "streams" of information but exhibit modifications of the response rather than encoding a feature of the stimulus, like pitch. Copyright © 2015 the American Physiological Society.

  2. A function for binaural integration in auditory grouping and segregation in the inferior colliculus

    Science.gov (United States)

    Shackleton, Trevor M.; Magezi, David A.; Palmer, Alan R.

    2014-01-01

    Responses of neurons to binaural, harmonic complex stimuli in urethane-anesthetized guinea pig inferior colliculus (IC) are reported. To assess the binaural integration of harmonicity cues for sound segregation and grouping, responses were measured to harmonic complexes with different fundamental frequencies presented to each ear. Simultaneously gated harmonic stimuli with fundamental frequencies of 125 Hz and 145 Hz were presented to the left and right ears, respectively, and recordings made from 96 neurons with characteristic frequencies >2 kHz in the central nucleus of the IC. Of these units, 70 responded continuously throughout the stimulus and were excited by the stimulus at the contralateral ear. The stimulus at the ipsilateral ear excited (EE: 14%; 10/70), inhibited (EI: 33%; 23/70), or had no significant effect (EO: 53%; 37/70), defined by the effect on firing rate. The neurons phase locked to the temporal envelope at each ear to varying degrees depending on signal level. Many of the cells (predominantly EO) were dominated by the response to the contralateral stimulus. Another group (predominantly EI) synchronized to the contralateral stimulus and were suppressed by the ipsilateral stimulus in a phasic manner. A third group synchronized to the stimuli at both ears (predominantly EE). Finally, a group only responded when the waveform peaks from each ear coincided. We conclude that these groups of neurons represent different “streams” of information but exhibit modifications of the response rather than encoding a feature of the stimulus, like pitch. PMID:25540219

  3. Proposal for inclusion of topics of particle physics integrated electric charge through a potentially meaningful teaching units

    Directory of Open Access Journals (Sweden)

    Lisiane Barcellos Calheiro

    2014-03-01

    Full Text Available In this article the results of the analysis of free and concept maps produced are presented from the application and evaluation of a Potentially Meaningful Teaching Units – PMTU, which is a teaching sequence based on various learning theories and seeks to promote meaningful student learning. Presents, in this work, part of a research Masters in Science Education which deals with the inclusion of topics of particle physics integrated with traditional content of the third year of high school. It was implemented in a third grade high school class of a State School in Santa Maria, Rio Grande do Sul, and Brazil. The PMTU aimed to address in an integrated manner threads for Particle Physics and Electronics. A didactic sequence that integrated the topics of electric charge, atomic models, elementary particles, quantization and process electrification was applied. Such integration aimed at stimulating the interest on topics related to Modern and Contemporary Physics. It was developed using PMTU activities that aimed at promoting meaningful learning and knowledge construction in the classroom, Since the topics involved were quite complex, this made their integration a real challenge to the high school teachers, and resulted in changes in their teaching practices. Research showed that the inclusion of topics on physics of elementary particles the and electricity, through Potentially Meaningful Teaching Units, show satisfactory results in the students’ learning.

  4. Comparative Study of Electric Energy Storages and Thermal Energy Auxiliaries for Improving Wind Power Integration in the Cogeneration System

    Directory of Open Access Journals (Sweden)

    Yanjuan Yu

    2018-01-01

    Full Text Available In regards to the cogeneration system in Northern China, mainly supported by combined heat and power (CHP plants, it usually offers limited operation flexibility due to the joint production of electric and thermal power. For that large-scale wind farms included in the cogeneration system, a large amount of wind energy may have to be wasted. To solve this issue, the utilization of the electric energy storages and the thermal energy auxiliaries are recommended, including pumped hydro storage (PHS, compressed air energy storage (CAES, hydrogen-based energy storage (HES, heat storage (HS, electric boilers (EB, and heat pumps (HP. This paper proposes a general evaluation method to compare the performance of these six different approaches for promoting wind power integration. In consideration of saving coal consumption, reducing CO2 emissions, and increasing investment cost, the comprehensive benefit is defined as the evaluation index. Specifically, a wind-thermal conflicting expression (WTCE is put forward to simplify the formulation of the comprehensive benefit. Further, according to the cogeneration system of the West Inner Mongolia (WIM power grid, a test system is modelled to perform the comparison of the six different approaches. The results show that introducing the electric energy storages and the thermal energy auxiliaries can both contribute to facilitating wind power integration, and the HP can provide the best comprehensive benefit.

  5. A new approach for electrical properties estimation using a global integral equation and improvements using high permittivity materials.

    Science.gov (United States)

    Schmidt, Rita; Webb, Andrew

    2016-01-01

    Electrical Properties Tomography (EPT) using MRI is a technique that has been developed to provide a new contrast mechanism for in vivo imaging. Currently the most common method relies on the solution of the homogeneous Helmholtz equation, which has limitations in accurate estimation at tissue interfaces. A new method proposed in this work combines a Maxwell's integral equation representation of the problem, and the use of high permittivity materials (HPM) to control the RF field, in order to reconstruct the electrical properties image. The magnetic field is represented by an integral equation considering each point as a contrast source. This equation can be solved in an inverse method. In this study we use a reference simulation or scout scan of a uniform phantom to provide an initial estimate for the inverse solution, which allows the estimation of the complex permittivity within a single iteration. Incorporating two setups with and without the HPM improves the reconstructed result, especially with respect to the very low electric field in the center of the sample. Electromagnetic simulations of the brain were performed at 3T to generate the B1(+) field maps and reconstruct the electric properties images. The standard deviations of the relative permittivity and conductivity were within 14% and 18%, respectively for a volume consisting of white matter, gray matter and cerebellum. Copyright © 2015 Elsevier Inc. All rights reserved.

  6. Invited Article: Electrically tunable silicon-based on-chip microdisk resonator for integrated microwave photonic applications

    Directory of Open Access Journals (Sweden)

    Weifeng Zhang

    2016-11-01

    Full Text Available Silicon photonics with advantages of small footprint, compatibility with the mature CMOS fabrication technology, and its potential for seamless integration with electronics is making a significant difference in realizing on-chip integration of photonic systems. A microdisk resonator (MDR with a strong capacity in trapping and storing photons is a versatile element in photonic integrated circuits. Thanks to the large index contrast, a silicon-based MDR with an ultra-compact footprint has a great potential for large-scale and high-density integrations. However, the existence of multiple whispering gallery modes (WGMs and resonance splitting in an MDR imposes inherent limitations on its widespread applications. In addition, the waveguide structure of an MDR is incompatible with that of a lateral PN junction, which leads to the deprivation of its electrical tunability. To circumvent these limitations, in this paper we propose a novel design of a silicon-based MDR by introducing a specifically designed slab waveguide to surround the disk and the lateral sides of the bus waveguide to suppress higher-order WGMs and to support the incorporation of a lateral PN junction for electrical tunability. An MDR based on the proposed design is fabricated and its optical performance is evaluated. The fabricated MDR exhibits single-mode operation with a free spectral range of 28.85 nm. Its electrical tunability is also demonstrated and an electro-optic frequency response with a 3-dB modulation bandwidth of ∼30.5 GHz is measured. The use of the fabricated MDR for the implementation of an electrically tunable optical delay-line and a tunable fractional-order temporal photonic differentiator is demonstrated.

  7. A Cost-effective and Emission-aware Power Management System for Ships with Integrated Full Electric Propulsion

    DEFF Research Database (Denmark)

    Kanellos, Fotis D.; Anvari-Moghaddam, Amjad; Guerrero, Josep M.

    2017-01-01

    comprising integrated full electric propulsion, energy storage and shore power supply facility is proposed. The proposed optimization method is exploiting an interactive approach based on particle swarm optimization (PSO) method and a fuzzy mechanism to improve the computational efficiency of the algorithm....... The proposed fuzzy-based particle swarm optimization (FPSO) algorithm aims at minimizing the operation cost, limiting the greenhouse gas (GHG) emissions and satisfying the technical and operational constraints of the ship....

  8. Renewable energy integration into the Australian National Electricity Market: Characterising the energy value of wind and solar generation

    OpenAIRE

    Nicholas Boerema; Merlinde Kay; Iain MacGill

    2010-01-01

    This paper examines how key characteristics of the underlying wind and solar resources may impact on their energy value within the Australian National Electricity Market(NEM). Analysis has been performed for wind generation using half hour NEM data for South Australia over the 2008-9 financial year. The potential integration of large scale solar generation has been modelled using direct normal solar radiant energy measurements from the Bureau of Meteorology for six sites across the NEM. For w...

  9. Invited Article: Electrically tunable silicon-based on-chip microdisk resonator for integrated microwave photonic applications

    Science.gov (United States)

    Zhang, Weifeng; Yao, Jianping

    2016-11-01

    Silicon photonics with advantages of small footprint, compatibility with the mature CMOS fabrication technology, and its potential for seamless integration with electronics is making a significant difference in realizing on-chip integration of photonic systems. A microdisk resonator (MDR) with a strong capacity in trapping and storing photons is a versatile element in photonic integrated circuits. Thanks to the large index contrast, a silicon-based MDR with an ultra-compact footprint has a great potential for large-scale and high-density integrations. However, the existence of multiple whispering gallery modes (WGMs) and resonance splitting in an MDR imposes inherent limitations on its widespread applications. In addition, the waveguide structure of an MDR is incompatible with that of a lateral PN junction, which leads to the deprivation of its electrical tunability. To circumvent these limitations, in this paper we propose a novel design of a silicon-based MDR by introducing a specifically designed slab waveguide to surround the disk and the lateral sides of the bus waveguide to suppress higher-order WGMs and to support the incorporation of a lateral PN junction for electrical tunability. An MDR based on the proposed design is fabricated and its optical performance is evaluated. The fabricated MDR exhibits single-mode operation with a free spectral range of 28.85 nm. Its electrical tunability is also demonstrated and an electro-optic frequency response with a 3-dB modulation bandwidth of ˜30.5 GHz is measured. The use of the fabricated MDR for the implementation of an electrically tunable optical delay-line and a tunable fractional-order temporal photonic differentiator is demonstrated.

  10. Social Integration of 6-7 Year-Old Children in a Handball Initiation Group

    Directory of Open Access Journals (Sweden)

    Irina Sburlan

    2017-08-01

    Full Text Available This study is observatory and aims at approaching the training process in 6-7-year-old children in handball in terms of socialization and its main objective is the creation of interpersonal relationships between the team players. By using the bibliographic study, sociometric test, analysis and interpretation of the data collected from 20 children (10 girls and 10 boys aged 6-7 years who were enrolled in a training program in which the group formation was intended to be achieved, we managed to validate the hypothesis according to which if we use in a 6-7-year-old group of children exercises for teaching handball, the level of social integration is improved. The conclusion emphasizes that the results to the second test prove the efficiency of the means of a collective nature.

  11. Breast cancer: a manual for a proposed group treatment integrating evidence based resilience factors.

    Science.gov (United States)

    Friborg, Oddgeir; Sørlie, Tore; Rosenvinge, Jan H

    2005-08-01

    The paper presents the structure and content of a manual for a proposed treatment of breast cancer patients in groups. The proposed treatment is structured, time limited, and integrates elements from 1995 work of Spiegel and the Yalom 1995 theory of group therapy as well as empirically derived resilience factors. Addressing the psychological specificity of breast cancer, the overall treatment goals are to help patients to acquire new coping skills for relieving stress, to increase their personal and social competence and their use of available social support, to increase family coherence, to enhance optimism and quality of life, and to help patients develop new values and priorities that comply with their current and future life situation.

  12. Conserved patterns of integrated developmental plasticity in a group of polyphenic tropical butterflies.

    Science.gov (United States)

    van Bergen, Erik; Osbaldeston, Dave; Kodandaramaiah, Ullasa; Brattström, Oskar; Aduse-Poku, Kwaku; Brakefield, Paul M

    2017-02-27

    Developmental plasticity is thought to have profound macro-evolutionary effects, for example, by increasing the probability of establishment in new environments and subsequent divergence into independently evolving lineages. In contrast to plasticity optimized for individual traits, phenotypic integration, which enables a concerted response of plastic traits to environmental variability, may affect the rate of local adaptation by constraining independent responses of traits to selection. Using a comparative framework, this study explores the evolution of reaction norms for a variety of life history and morphological traits across five related species of mycalesine butterflies from the Old World tropics. Our data indicate that an integrated response of a suite of key traits is shared amongst these species. Interestingly, the traits that make up the functional suite are all known to be regulated by ecdysteroid signalling in Bicyclus anynana, one of the species included in this study, suggesting the same underlying hormonal regulator may be conserved within this group of polyphenic butterflies. We also detect developmental thresholds for the expression of alternative morphs. The phenotypic plasticity of a broad suite of morphological and life history traits is integrated and shared among species from three geographically independent lineages of mycalesine butterflies, despite considerable periods of independent evolution and exposure to disparate environments. At the same time, we have detected examples of evolutionary change where independent traits show different patterns of reaction norms. We argue that the expression of more robust phenotypes may occur by shifting developmental thresholds beyond the boundaries of the typical environmental variation.

  13. The integration of renewable energies into the electricity systems of North Africa

    NARCIS (Netherlands)

    Brand, B.A.

    2015-01-01

    The North African electricity systems are in a phase of rapid transformation. The ever-increasing electricity demand - with annual growth rates of more than 6% - is placing great strain on the regional economies, especially in times of economic downturn and political instability in the aftermath of

  14. 77 FR 36996 - South Mississippi Electric Cooperative: Plant Ratcliff, Kemper County Integrated Gasification...

    Science.gov (United States)

    2012-06-20

    ... combustion turbines. Heat recovery steam generators will convert excess heat from primary combustion to drive a steam turbine that will produce additional electrical power. The Project will demonstrate greater...] [FR Doc No: 2012-15035] DEPARTMENT OF AGRICULTURE Rural Utilities Service South Mississippi Electric...

  15. Grid connection rules for electric cars integrated as virtual power plant in smart grids

    DEFF Research Database (Denmark)

    Leban, Krisztina Monika; Ritchie, Ewen; Thøgersen, Paul Bach

    2013-01-01

    This paper reviews the situation of V2G and proposes a solution involving a consolidating fleet manager, and a decision making process for the individual V2G electric car owner. A grid connection routine for electric vehicles is proposed. The algorithm dealing with decisions to be taken in foreseen...

  16. Atomic-order thermal nitridation of group IV semiconductors for ultra-large-scale integration

    Science.gov (United States)

    Murota, Junichi; Le Thanh, Vinh

    2015-03-01

    One of the main requirements for ultra-large-scale integration (ULSI) is atomic-order control of process technology. Our concept of atomically controlled processing for group IV semiconductors is based on atomic-order surface reaction control in Si-based CVD epitaxial growth. On the atomic-order surface nitridation of a few nm-thick Ge/about 4 nm-thick Si0.5Ge0.5/Si(100) by NH3, it is found that N atoms diffuse through nm-order thick Ge layer into Si0.5Ge0.5/Si(100) substrate and form Si nitride, even at 500 °C. By subsequent H2 heat treatment, although N atomic amount in Ge layer is reduced drastically, the reduction of the Si nitride is slight. It is suggested that N diffusion in Ge layer is suppressed by the formation of Si nitride and that Ge/atomic-order N layer/Si1-xGex/Si (100) heterostructure is formed. These results demonstrate the capability of CVD technology for atomically controlled nitridation of group IV semiconductors for ultra-large-scale integration. Invited talk at the 7th International Workshop on Advanced Materials Science and Nanotechnology IWAMSN2014, 2-6 November, 2014, Ha Long, Vietnam.

  17. The Electrical Properties for Phenolic Isocyanate-Modified Bisphenol-Based Epoxy Resins Comprising Benzoate Group.

    Science.gov (United States)

    Lee, Eun Yong; Chae, Il Seok; Park, Dongkyung; Suh, Hongsuk; Kang, Sang Wook

    2016-03-01

    Epoxy resin has been required to have a low dielectric constant (D(k)), low dissipation factor (Df), low coefficient of thermal expansion (CTE), low water absorption, high mechanical, and high adhesion properties for various applications. A series of novel phenolic isocyanate-modified bisphenol-based epoxy resins comprising benzoate group were prepared for practical electronic packaging applications. The developed epoxy resins showed highly reduced dielectric constants (D(k)-3.00 at 1 GHz) and low dissipation values (Df-0.014 at 1 GHz) as well as enhanced thermal properties.

  18. "We Are in This Together": Common Group Identity Predicts Majority Members' Active Acculturation Efforts to Integrate Immigrants.

    Science.gov (United States)

    Kunst, Jonas R; Thomsen, Lotte; Sam, David L; Berry, John W

    2015-10-01

    Although integration involves a process of mutual accommodation, the role of majority groups is often downplayed to passive tolerance, leaving immigrants with the sole responsibility for active integration. However, we show that common group identity can actively involve majority members in this process across five studies. Study 1 showed that common identity positively predicted support of integration efforts; Studies 2 and 3 extended these findings, showing that it also predicted real behavior such as monetary donations and volunteering. A decrease in modern racism mediated the relations across these studies, and Studies 4 and 5 further demonstrated that it indeed mediated these effects over and above acculturation expectations and color-blindness, which somewhat compromised integration efforts. Moreover, the last two studies also demonstrated that common, but not dual, groups motivated integration efforts. Common identity appears crucial for securing majorities' altruistic efforts to integrate immigrants and, thus, for achieving functional multiculturalism. © 2015 by the Society for Personality and Social Psychology, Inc.

  19. Optimizing an integrated waveguide modulator for sensitive low-frequency alternating-current electric-field sensors

    Science.gov (United States)

    Al-Tarawni, Musab A. M.; Bakar, A. Ashrif A.; Zain, Ahmad Rifqi Md; Tarawneh, Mou'ad A.; Ahmad, Sahrim Hj.

    2017-06-01

    The use of integrated waveguide modulators is a common technique in electric-field sensing. However, the distortion in the modulated signal caused by high half-voltage Vπ and the difficulty in obtaining low-frequency responses are challenging issues for the use of low-frequency alternating-current (AC) electric-field sensors. This study investigates the use of an optimized segmented slot waveguide as the core of a sensor to determine the sensor features that produce useful frequency responses and sensitivity. The segmented slot waveguide is optimized in terms of periodicity and segment width to produce low Vπ and electrical bandwidth before testing the sensor sensitivity. The results show that reducing the segment width achieves a low Vπ of 0.32 V and a very low electrical bandwidth of 4.3 kHz. Our study provides evidence of the feasibility of using a segmented slot waveguide as the primary element for highly sensitive, low-frequency AC electric-field sensors.

  20. Building a taxonomy of integrated palliative care initiatives: results from a focus group.

    Science.gov (United States)

    Ewert, Benjamin; Hodiamont, Farina; van Wijngaarden, Jeroen; Payne, Sheila; Groot, Marieke; Hasselaar, Jeroen; Menten, Johann; Radbruch, Lukas

    2016-03-01

    Empirical evidence suggests that integrated palliative care (IPC) increases the quality of care for palliative patients and supports professional caregivers. Existing IPC initiatives in Europe vary in their design and are hardly comparable. InSuP-C, a European Union research project, aimed to build a taxonomy of IPC initiatives applicable across diseases, healthcare sectors and systems. The taxonomy of IPC initiatives was developed in cooperation with an international and multidisciplinary focus group of 18 experts. Subsequently, a consensus meeting of 10 experts revised a preliminary taxonomy and adopted the final classification system. Consisting of eight categories, with two to four items each, the taxonomy covers the process and structure of IPC initiatives. If two items in at least one category apply to an initiative, a minimum level of integration is assumed to have been reached. Categories range from the type of initiative (items: pathway, model or guideline) to patients' key contact (items: non-pc specialist, pc specialist, general practitioner). Experts recommended the inclusion of two new categories: level of care (items: primary, secondary or tertiary) indicating at which stage palliative care is integrated and primary focus of intervention describing IPC givers' different roles (items: treating function, advising/consulting or training) in the care process. Empirical studies are required to investigate how the taxonomy is used in practice and whether it covers the reality of patients in need of palliative care. The InSuP-C project will test this taxonomy empirically in selected initiatives using IPC. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

  1. Integral group actions on symmetric spaces and discrete duality symmetries of supergravity theories

    Energy Technology Data Exchange (ETDEWEB)

    Carbone, Lisa [Mathematics Rutgers University, Hill Center-Busch Campus, 110 Frelinghuysen Rd., Piscataway, New Jersey 08854 (United States); Murray, Scott H. [Mathematics & Statistics, University of Canberra, ACT 2601 (Australia); Sati, Hisham [Department of Mathematics, University of Pittsburgh, 301 Thackeray Hall, Pittsburgh, Pennsylvania 15260 (United States)

    2015-10-15

    For G = G(ℝ), a split, simply connected, semisimple Lie group of rank n and K the maximal compact subgroup of G, we give a method for computing Iwasawa coordinates of K∖G using the Chevalley generators and the Steinberg presentation. When K∖G is a scalar coset for a supergravity theory in dimensions ≥3, we determine the action of the integral form G(ℤ) on K∖G. We give explicit results for the action of the discrete U-duality groups SL{sub 2}(ℤ) and E{sub 7}(ℤ) on the scalar cosets SO(2)∖SL{sub 2}(ℝ) and [SU(8)/( ± Id)]∖E{sub 7(+7)}(ℝ) for type IIB supergravity in ten dimensions and 11-dimensional supergravity reduced to D = 4 dimensions, respectively. For the former, we use this to determine the discrete U-duality transformations on the scalar sector in the Borel gauge and we describe the discrete symmetries of the dyonic charge lattice. We determine the spectrum-generating symmetry group for fundamental BPS solitons of type IIB supergravity in D = 10 dimensions at the classical level and we propose an analog of this symmetry at the quantum level. We indicate how our methods can be used to study the orbits of discrete U-duality groups in general.

  2. Electronic meter with custom integrated circuit for electric energy measurement; Medidor eletronico de energia eletrica com circuito integrado dedicado

    Energy Technology Data Exchange (ETDEWEB)

    Caldas, Roberto Pereira

    1990-04-01

    The design and implementation of an electrical energy electronic meter for operation at low voltages, according to two steps of development carried out in Centro de Pesquisas de Energia Eletrica - CEPEL is described. In the first step, an electronic meter with discrete commercial components has been developed, in order to demonstrate to the Brazilian power suppliers the feasibility of such a device for electrical energy metering and charging. The second step was constituted by the design of an integrated circuit, aiming the reduction of the cost of the meter as well as the enhancement of its reliability. Several techniques of electrical energy measurement are presented. The meter with discrete components makes use of a time division multiplier (TDM), in order to determine the active power in the load. Voltage and current levels have been reduced through the use of voltage and current sensors compatible with the TDM's inputs. A V-F converter employing continuos integration, has been used for the determination of the energy consumed by the load through the integration of the TDM's output signal. Most of the discrete components of the meter have been replaced by the dedicated integrated circuit. The TDM has remained essentially the same, but the V-F converter has been changed into a dual-slope one, which is more adequate for implementation in a single chip. The tests performed with the prototypes of the meter including both the meter with discrete components and the meter with the custom-made integrated circuit have presented measurement errors of less the 0,2 %. The initial goal, according to Brazilian specifications of electromechanical meters and international specifications for electronic meters, was 1 %. (author)

  3. Report of the National Heart, Lung, and Blood Institute Working Group: An Integrated Network for Congenital Heart Disease Research.

    Science.gov (United States)

    Pasquali, Sara K; Jacobs, Jeffrey P; Farber, Gregory K; Bertoch, David; Blume, Elizabeth D; Burns, Kristin M; Campbell, Robert; Chang, Anthony C; Chung, Wendy K; Riehle-Colarusso, Tiffany; Curtis, Lesley H; Forrest, Christopher B; Gaynor, William J; Gaies, Michael G; Go, Alan S; Henchey, Paul; Martin, Gerard R; Pearson, Gail; Pemberton, Victoria L; Schwartz, Steven M; Vincent, Robert; Kaltman, Jonathan R

    2016-04-05

    The National Heart, Lung, and Blood Institute convened a working group in January 2015 to explore issues related to an integrated data network for congenital heart disease research. The overall goal was to develop a common vision for how the rapidly increasing volumes of data captured across numerous sources can be managed, integrated, and analyzed to improve care and outcomes. This report summarizes the current landscape of congenital heart disease data, data integration methodologies used across other fields, key considerations for data integration models in congenital heart disease, and the short- and long-term vision and recommendations made by the working group. © 2016 American Heart Association, Inc.

  4. Report of the National Heart, Lung, and Blood Institute Working Group: An Integrated Network for Congenital Heart Disease Research

    Science.gov (United States)

    Pasquali, Sara K.; Jacobs, Jeffrey P.; Farber, Gregory K.; Bertoch, David; Blume, Elizabeth D.; Burns, Kristin M.; Campbell, Robert; Chang, Anthony C.; Chung, Wendy K.; Riehle-Colarusso, Tiffany; Curtis, Lesley H.; Forrest, Christopher B.; Gaynor, William J.; Gaies, Michael G.; Go, Alan S.; Henchey, Paul; Martin, Gerard R.; Pearson, Gail; Pemberton, Victoria L.; Schwartz, Steven M.; Vincent, Robert; Kaltman, Jonathan R.

    2016-01-01

    The National Heart, Lung, and Blood Institute convened a Working Group in January 2015 to explore issues related to an integrated data network for congenital heart disease (CHD) research. The overall goal was to develop a common vision for how the rapidly increasing volumes of data captured across numerous sources can be managed, integrated, and analyzed to improve care and outcomes. This report summarizes the current landscape of CHD data, data integration methodologies used across other fields, key considerations for data integration models in CHD, and the short- and long-term vision and recommendations made by the Working Group. PMID:27045129

  5. Integrating Solar Power onto the Electric Grid - Bridging the Gap between Atmospheric Science, Engineering and Economics

    Science.gov (United States)

    Ghonima, M. S.; Yang, H.; Zhong, X.; Ozge, B.; Sahu, D. K.; Kim, C. K.; Babacan, O.; Hanna, R.; Kurtz, B.; Mejia, F. A.; Nguyen, A.; Urquhart, B.; Chow, C. W.; Mathiesen, P.; Bosch, J.; Wang, G.

    2015-12-01

    One of the main obstacles to high penetrations of solar power is the variable nature of solar power generation. To mitigate variability, grid operators have to schedule additional reliability resources, at considerable expense, to ensure that load requirements are met by generation. Thus despite the cost of solar PV decreasing, the cost of integrating solar power will increase as penetration of solar resources onto the electric grid increases. There are three principal tools currently available to mitigate variability impacts: (i) flexible generation, (ii) storage, either virtual (demand response) or physical devices and (iii) solar forecasting. Storage devices are a powerful tool capable of ensuring smooth power output from renewable resources. However, the high cost of storage is prohibitive and markets are still being designed to leverage their full potential and mitigate their limitation (e.g. empty storage). Solar forecasting provides valuable information on the daily net load profile and upcoming ramps (increasing or decreasing solar power output) thereby providing the grid advance warning to schedule ancillary generation more accurately, or curtail solar power output. In order to develop solar forecasting as a tool that can be utilized by the grid operators we identified two focus areas: (i) develop solar forecast technology and improve solar forecast accuracy and (ii) develop forecasts that can be incorporated within existing grid planning and operation infrastructure. The first issue required atmospheric science and engineering research, while the second required detailed knowledge of energy markets, and power engineering. Motivated by this background we will emphasize area (i) in this talk and provide an overview of recent advancements in solar forecasting especially in two areas: (a) Numerical modeling tools for coastal stratocumulus to improve scheduling in the day-ahead California energy market. (b) Development of a sky imager to provide short term

  6. 77 FR 59166 - South Mississippi Electric Cooperative: Plant Ratcliffe, Kemper County Integrated Gasification...

    Science.gov (United States)

    2012-09-26

    ... Integrated Gasification Combined-Cycle (IGCC) Project AGENCY: Rural Utilities Service, USDA. ACTION: Notice... Integrated Gasification Combined-Cycle Facility located in Kemper County, Mississippi (the Project). The... the feasibility of the Integrated Gasification Combined-Cycle (IGCC) technology for commercial...

  7. Research on an Integrated Hydrostatic-Driven Electric Generator with Controllable Load for Renewable Energy Applications

    National Research Council Canada - National Science Library

    Tao Wang; He Wang

    2017-01-01

    A hydrostatic transmission is a promising technology in renewable energy harvesting, such as wind energy and wave energy, where the hydrostatic-driven electric generator is a key energy conversion component...

  8. Analysis of axially symmetric wire antennas by the use of exact kernel of electric field integral equation

    Directory of Open Access Journals (Sweden)

    Krneta Aleksandra J.

    2016-01-01

    Full Text Available The paper presents a new method for the analysis of wire antennas with axial symmetry. Truncated cones have been applied to precisely model antenna geometry, while the exact kernel of the electric field integral equation has been used for computation. Accuracy and efficiency of the method has been further increased by the use of higher order basis functions for current expansion, and by selecting integration methods based on singularity cancelation techniques for the calculation of potential and impedance integrals. The method has been applied to the analysis of a typical dipole antenna, thick dipole antenna and a coaxial line. The obtained results verify the high accuracy of the method. [Projekat Ministarstva nauke Republike Srbije, br. TR-32005

  9. Optimizing Aggregation Scenarios for Integrating Renewable Energy into the U.S. Electric Grid

    Science.gov (United States)

    Corcoran, B. A.; Jacobson, M. Z.

    2010-12-01

    This study is an analysis of 2006 and 2007 electric load data, wind speed and solar irradiance data, and existing hydroelectric, geothermal, and other power plant data to quantify benefits of aggregating clean electric power from various Federal Energy Regulatory Commission (FERC) regions in the contiguous United States. First, various time series, statistics, and probability methods are applied to the electric load data to determine if there are any desirable demand-side results—specifically reducing variability and/or coincidence of peak events, which could reduce the amount of required carbon-based generators—in combining the electricity demands from geographically and temporally diverse areas. Second, an optimization algorithm is applied to determine the least-cost portfolio of energy resources to meet the electric load for a range of renewable portfolio standards (RPS’s) for each FERC region and for various aggregation scenarios. Finally, the installed capacities, ramp rates, standard deviation, and corresponding generator requirements from these optimization test runs are compared against the transmission requirements to determine the most economical organizational structure of the contiguous U.S. electric grid. Ideally, results from this study will help to justify and identify a possible structure of a federal RPS and offer insight into how to best organize regions for transmission planning.

  10. PV, Wind and Storage Integration on Small Islands for the Fulfilment of the 50-50 Renewable Electricity Generation Target

    Directory of Open Access Journals (Sweden)

    Javier Mendoza-Vizcaino

    2017-05-01

    Full Text Available Decarbonisation in the generation of electricity is necessary to reduce fossil fuel consumption, the pollution emitted and to meet the Energy Technology Perspectives 2 ° C Scenario (2DS targets. Small islands are not exempt from this target, so this study’s emphasis is placed on a 50-50 target: to reduce the fossil fuel consumption through electricity generation from Renewable Energy Sources (RES to cover 50% of all electric demand by 2050 on small islands. Using Cozumel Island, Mexico, as a case study, this analysis will be based on three factors: economical, technical, and land-use possibilities of integrating Renewable Energy Technologies (RETs into the existing electrical grid. This analysis is made through long-term statistical models. A deterministic methodology is used to perform time-series simulations. The selection of the best system was made on the basis of a Dimensional Statistical Variable (DSV through primary and secondary category rankings. The presented methodology determines the best systems for capturing the initial capital cost and competitiveness of this new proposal compared with the current system of electricity generation on the Island, and can be applied to small islands as well. According to the results, all systems proposed are able to completely satisfy the renewable electricity needed by 2050 in all scenarios. From the 12 system proposals that were compared, two systems, System 2 and System 7, were chosen as eligible systems to be installed. The Levelized Cost of Energy (LCOE result for System 2 was 0.2518 US$/kWh and for System 7 was 0.2265 US$/kWh by 2018 in the Base Scenario. Meanwhile, the Internal Rate of Return (IRR value fluctuated from 17.2% for System 2 to 31% for System 7.

  11. Integration of Electric Springs and Multi-Port Transformers—A New Solution for AC Microgrids with Renewable Energy Sources

    Directory of Open Access Journals (Sweden)

    Qingsong Wang

    2017-02-01

    Full Text Available The new concept of integrating electric springs (ESs and multi-port transformers (MTPs as an active solution for energy management in alternating current (AC microgrids is proposed. With an ES located at the port where storage devices previously were, the so-called critical flux is regulated to a constant value within the core of the transformer. The voltage on each winding is then clamped so that critical load (CL voltage is regulated to a predefined value. The integration of ESs and MPTs can ensure a safer environment for ES utilization. Thus, the power generated by renewable energy sources can be safely used at residential locations with no need to worry about voltage fluctuations across CLs. Moreover, users can sell electricity to the power companies considered as CLs when the electricity generation of the AC microgrids or the home-installed renewable energy resources exceeds the personal consumption. In the paper, isolated topologies for ESs with three- and four-port transformers are examined, and a theoretical analysis of the ES operation is carried out. Then, equivalent circuits of the isolated ES topologies have been derived. Analysis of the ES operation and effectiveness of the isolated ES topologies are validated by both simulations and experiments.

  12. Integrated DEA Models and Grey System Theory to Evaluate Past-to-Future Performance: A Case of Indian Electricity Industry

    Directory of Open Access Journals (Sweden)

    Chia-Nan Wang

    2015-01-01

    Full Text Available The growth of economy and population together with the higher demand in energy has created many concerns for the Indian electricity industry whose capacity is at 211 gigawatts mostly in coal-fired plants. Due to insufficient fuel supply, India suffers from a shortage of electricity generation, leading to rolling blackouts; thus, performance evaluation and ranking the industry turn into significant issues. By this study, we expect to evaluate the rankings of these companies under control of the Ministry of Power. Also, this research would like to test if there are any significant differences between the two DEA models: Malmquist nonradial and Malmquist radial. Then, one advance model of MPI would be chosen to see these companies’ performance in recent years and next few years by using forecasting results of Grey system theory. Totally, the realistic data 14 are considered to be in this evaluation after the strict selection from the whole industry. The results found that all companies have not shown many abrupt changes on their scores, and it is always not consistently good or consistently standing out, which demonstrated the high applicable usability of the integrated methods. This integrated numerical research gives a better “past-present-future” insights into performance evaluation in Indian electricity industry.

  13. Integrated DEA models and grey system theory to evaluate past-to-future performance: a case of Indian electricity industry.

    Science.gov (United States)

    Wang, Chia-Nan; Nguyen, Nhu-Ty; Tran, Thanh-Tuyen

    2015-01-01

    The growth of economy and population together with the higher demand in energy has created many concerns for the Indian electricity industry whose capacity is at 211 gigawatts mostly in coal-fired plants. Due to insufficient fuel supply, India suffers from a shortage of electricity generation, leading to rolling blackouts; thus, performance evaluation and ranking the industry turn into significant issues. By this study, we expect to evaluate the rankings of these companies under control of the Ministry of Power. Also, this research would like to test if there are any significant differences between the two DEA models: Malmquist nonradial and Malmquist radial. Then, one advance model of MPI would be chosen to see these companies' performance in recent years and next few years by using forecasting results of Grey system theory. Totally, the realistic data 14 are considered to be in this evaluation after the strict selection from the whole industry. The results found that all companies have not shown many abrupt changes on their scores, and it is always not consistently good or consistently standing out, which demonstrated the high applicable usability of the integrated methods. This integrated numerical research gives a better "past-present-future" insights into performance evaluation in Indian electricity industry.

  14. Randomized controlled trial of traditional Chinese medicine (acupuncture and tuina) in cerebral palsy: part 1--any increase in seizure in integrated acupuncture and rehabilitation group versus rehabilitation group?

    Science.gov (United States)

    Wu, Yun; Zou, Li-Ping; Han, Tong-Li; Zheng, Hua; Caspi, Opher; Wong, Virginia; Su, Yani; Shen, Kun-Ling

    2008-10-01

    The objective of this study was to observe for any change in baseline seizure frequency with acupuncture in children with cerebral palsy. A randomized controlled study was conducted: Group I consisted of integrated acupuncture, tuina, and rehabilitation (physiotherapy, occupational therapy, and hydrotherapy) for 12 weeks; and Group II consisted of rehabilitation (physiotherapy, occupational therapy, and hydrotherapy) for 12 weeks. After a washout period of 4 weeks, Group II then received acupuncture and tuina for 12 weeks. Each subject received 5 daily acupuncture sessions per week for 12 weeks (total = 60 sessions). All children were assessed for any change in seizure frequency during treatment. One hundred and sixteen (116) children were recruited and randomized into Group I (N = 58) and Group II (N = 58). Thirty-three (33) children withdrew (9 from Group I and 24 from Group II). Of the remaining 83 children, Group I consisted of 49 and Group II of 34 children. For baseline, 5 children (6%; 5/83) had seizures. During phase 1 (12 weeks) of integrative treatment and subsequent 4-week follow-up, 3 children in Group I had seizures. Among those 3 children with seizures, 1 child with prior history of recurrent febrile seizure had 3 more recurrent febrile seizures during acupuncture treatment and 2 children without any prior history of seizures had new-onset seizures (1 with 3 recurrent febrile seizures and 1 with afebrile seizure). For Group I, 2 children with epilepsy had no increase in seizure frequency during acupuncture treatment. For Group II during the phase 2 acupuncture period, none had increase in seizure frequency. In both groups, 4 of 5 children (80%; 2 in Group I and 2 in Group II) with seizures had no increase in seizure frequency during acupuncture treatment and follow-up. The risk of increasing seizure is not increased with acupuncture treatment for cerebral palsy.

  15. A well-conditioned integral-equation formulation for efficient transient analysis of electrically small microelectronic devices

    KAUST Repository

    Bagci, Hakan

    2010-05-01

    A hierarchically regularized coupled set of time-domain surface and volume electric field integral-equations (TD-S-EFIE and TD-V-EFIE) for analyzing electromagnetic wave interactions with electrically small and geometrically intricate composite structures comprising perfect electrically conducting surfaces and finite dielectric volumes is presented. A classically formulated coupled set of TD-S- and V-EFIEs is shown to be ill-conditioned at low frequencies owing to the hypersingular nature of the TD-S-EFIE. To eliminate low-frequency breakdown in marching-on-in-time solvers for these coupled equations, a hierarchical regularizer leveraging generalized RaoWiltonGlisson functions is applied to the TD-S-EFIE; no regularization is applied to the TD-V-EFIE as it is protected from low-frequency breakdown by an identity term. The resulting hierarchically regularized hybrid TD-S- and V-EFIE solver is applicable to the analysis of wave interactions with electrically small and densely meshed structures of arbitrary topology. The accuracy, efficiency, and applicability of the proposed solver are demonstrated by analyzing crosstalk in a six-port transmission line, radiation from a miniature radio-frequency identification antenna, and, plane-wave coupling onto a partially-shielded and fully loaded two-layer computer board. © 2006 IEEE.

  16. Integrating Art into Group Treatment for Adults with Post-Traumatic Stress Disorder from Childhood Sexual Abuse: A Pilot Study

    Science.gov (United States)

    Becker, Carol-Lynne J.

    2015-01-01

    Current research supports the use of exposure-based treatments for posttraumatic stress disorder (PTSD) and integrated treatments show potential for enhanced symptom reduction. This pilot study developed a manualized group treatment integrating art interventions with exposure, grounding, and narrative therapy for five adults with PTSD who were…

  17. Slow wave structures integrated with ferromagnetic and ferro-electric thin films for smart RF applications

    Science.gov (United States)

    Rahman, B. M. Farid

    wavelength has been reduced from 14.86mm to 4.7mm at 2GHz. DC current which is the most convenient and available tuning parameter in a practical circuit board has been used, the developed SWS can function as quarter wave transmission line from 2GHz to 1.80GHz (i.e. 10%). Lead Zirconium Titanate (PZT) is grown and patterned on top of the section with standard sol-gel method to increase capacitance value. The inter digit capacitor type structure along with PZT thin film has been adopted and results showed capacitance value increment by 36%. An electric field between signal and ground has been applied to change the polarization of the thin film which resulted in a tuning of center frequency by 15% (1.75GHz to 2GHz). In addition, a novel approach has been implemented by integrating both the ferromagnetic and the ferroelectric thin films simultaneously to achieve higher slow wave effect, wider tuning range and smaller variation in Characteristics Impedance. The size of the final structure for a quarter wavelengths has been reduced from 14.86mm to 3.98mm while the center frequency has been tuned from 2GHz to 1.5GHz (i.e. 25%). Tunable RF applications of the ferro-magnetic thin films are also demonstrated as a DC current band pass filter, tunable noise suppressor and meander line inductor. A well designed frequency tunable band pass filter (BPF) is implemented at 4GHz with patterned Permalloy. The pass band frequency of a band pass filter has been tuned from 4GHz to 4.02GHz by applying a DC current. The suppression frequency of the developed noise suppressor is tuned from 4.8GHz to 6GHz and 4GHz to 6GHz by changing the aspect ratio of the Py bars and the gap in between them. Moreover, a novel way of tuning the stop band frequency of the noise suppressor by using an external direct current changed the suppression frequency from 6GHz to 4.3GHz. A pass band loss of 1.5%, less than 2° transmitted signal phase distortion, and 3 dB extra return loss of the designed noise suppressor

  18. Large-scale integration of off-shore wind power and regulation strategies of cogeneration plants in the Danish electricity system

    DEFF Research Database (Denmark)

    Østergaard, Poul Alberg

    2005-01-01

    The article analyses how the amount of a small-scale CHP plants and heat pumps and the regulation strategies of these affect the quantity of off-shore wind power that may be integrated into Danish electricity supply......The article analyses how the amount of a small-scale CHP plants and heat pumps and the regulation strategies of these affect the quantity of off-shore wind power that may be integrated into Danish electricity supply...

  19. Design of a high-torque machine with two integrated motors axes reducing the electric vehicle consumption

    Directory of Open Access Journals (Sweden)

    M. Chaieb

    2008-03-01

    Full Text Available The motorization of electric vehicle needs to work at a constant power on a wide range of speed. In order to be able to satisfy these requirements, we describe in this paper a solution, which consists in modifying of a simple structure of a permanent magnet motor by a double rotor structure integrating two motor axes into the same machine. This article describes, then, a design methodology of a permanent magnet motor with double rotor, radial flux, and strong starting torque for electric vehicles. This work consists on the analytical dimensioning of the motor by taking into account several operation constraints followed by a modelling by the finite elements method. This study is followed by the comparison between this motor and a motor with one rotor. A global model of the motor- converter is developed for the purpose to answer several optimisation problems

  20. Smart electric vehicle (EV) charging and grid integration apparatus and methods

    Science.gov (United States)

    Gadh, Rajit; Mal, Siddhartha; Prabhu, Shivanand; Chu, Chi-Cheng; Sheikh, Omar; Chung, Ching-Yen; He, Lei; Xiao, Bingjun; Shi, Yiyu

    2015-05-05

    An expert system manages a power grid wherein charging stations are connected to the power grid, with electric vehicles connected to the charging stations, whereby the expert system selectively backfills power from connected electric vehicles to the power grid through a grid tie inverter (if present) within the charging stations. In more traditional usage, the expert system allows for electric vehicle charging, coupled with user preferences as to charge time, charge cost, and charging station capabilities, without exceeding the power grid capacity at any point. A robust yet accurate state of charge (SOC) calculation method is also presented, whereby initially an open circuit voltage (OCV) based on sampled battery voltages and currents is calculated, and then the SOC is obtained based on a mapping between a previously measured reference OCV (ROCV) and SOC. The OCV-SOC calculation method accommodates likely any battery type with any current profile.

  1. Integration of a Folding Electric two-wheeler vehicle for a future commuting transportation

    DEFF Research Database (Denmark)

    Gudmundsson, Bjami Freyr; Larsen, Esben

    2012-01-01

    The paper issues the development, building and testing of a Folding Electric Motorbike, a lightweight, low cost and all-electric two-wheeler vehicle taking full advantage on today's city infrastructure. The technology offers drivers to combine transportation methods, lowering cost, and greenhouse...... are defined. This is followed by a feasibility study and a realization on technologies capabilities. The feasibility study is performed by developing, building and evaluating an alpha-prototype vehicle. The research indicate that the possibility of developing a powerful, light-weight, low cost and all-electric...... gas emission. The paper documents innovative studies on how the technology can be used to explode the today's transportation system and be used to bridge the gap of today's challenges and future solutions. The optimum components to be used in the small, lightweight vehicles are selected based...

  2. Integration of Electric Vehicles into the Power Distribution Network with a Modified Capacity Allocation Mechanism

    DEFF Research Database (Denmark)

    Hu, Junjie; Morais, Hugo; Sousa, Tiago

    2017-01-01

    The growing penetration of electric vehicles (EVs) represents an operational challenge to system operators, mainly at the distribution level by introducing congestion and voltage drop problems. To solve these potential problems, a two-level coordination approach is proposed in this study....... An aggregation entity, i.e., an EV virtual power plant (EV-VPP), is used to facilitate the interaction between the distribution system operator (DSO) and EV owners considering the decentralized electricity market structure. In level I, to prevent the line congestion and voltage drop problems, the EV......-VPPs, considering the case of EVs charging and discharging. The three mechanisms include: (1) a market-based approach; (2) a pro-rata approach; and (3) a newly-proposed constrained market-based approach. A case study considering a 37-bus distribution network and high penetration of electric vehicles is presented...

  3. A new way to integrate clinically relevant technology into small-group teaching.

    Science.gov (United States)

    Silk, Hugh; Agresta, Thomas; Weber, Catherine M

    2006-03-01

    Medical educators need to teach learners to efficiently access the best available evidence at the point of care and apply it in a patient-centered manner. As information becomes more readily available via the Internet and handheld computers, strategies to use these tools as part of the educational process become more important. New teaching skills are needed when attempting to seamlessly introduce technology into small-group settings in the midst of blending old and new teaching methods. The authors' development of a conceptual model known as "e-microskills" at the University of Connecticut School of Medicine in 2002 has facilitated the smooth integration of technology into teaching. This model's cornerstone is direct empowerment of learners during small-group sessions to perform observed searches for the best medical evidence on the Internet and with handheld computer resources. This is done in the context of a mnemonic, PEARL: (1) Choose a "Preplanned search intervention"; (2) allow learners to "Execute the search," thus committing themselves; (3) "Allow learners to teach other learners" about their search process; (4) "Review the quality of evidence" for the information found; and (5) discuss "Lessons of the search." Additional features of this teaching model include ground rules for teaching with technology that optimizes teaching time by reducing anticipated obstacles. The rules add structure in an otherwise impromptu setting thus maximizing the teachable moment. While "e-microskills" are described here within the context of a third-year family medicine clerkship, they can easily be adapted to other small-group teaching settings.

  4. GPMiner: an integrated system for mining combinatorial cis-regulatory elements in mammalian gene group.

    Science.gov (United States)

    Lee, Tzong-Yi; Chang, Wen-Chi; Hsu, Justin Bo-Kai; Chang, Tzu-Hao; Shien, Dray-Ming

    2012-01-01

    Sequence features in promoter regions are involved in regulating gene transcription initiation. Although numerous computational methods have been developed for predicting transcriptional start sites (TSSs) or transcription factor (TF) binding sites (TFBSs), they lack annotations for do not consider some important regulatory features such as CpG islands, tandem repeats, the TATA box, CCAAT box, GC box, over-represented oligonucleotides, DNA stability, and GC content. Additionally, the combinatorial interaction of TFs regulates the gene group that is associated with same expression pattern. To investigate gene transcriptional regulation, an integrated system that annotates regulatory features in a promoter sequence and detects co-regulation of TFs in a group of genes is needed. This work identifies TSSs and regulatory features in a promoter sequence, and recognizes co-occurrence of cis-regulatory elements in co-expressed genes using a novel system. Three well-known TSS prediction tools are incorporated with orthologous conserved features, such as CpG islands, nucleotide composition, over-represented hexamer nucleotides, and DNA stability, to construct the novel Gene Promoter Miner (GPMiner) using a support vector machine (SVM). According to five-fold cross-validation results, the predictive sensitivity and specificity are both roughly 80%. The proposed system allows users to input a group of gene names/symbols, enabling the co-occurrence of TFBSs to be determined. Additionally, an input sequence can also be analyzed for homogeneity of experimental mammalian promoter sequences, and conserved regulatory features between homologous promoters can be observed through cross-species analysis. After identifying promoter regions, regulatory features are visualized graphically to facilitate gene promoter observations. The GPMiner, which has a user-friendly input/output interface, has numerous benefits in analyzing human and mouse promoters. The proposed system is freely

  5. Institutional challenges caused by the integration of renewable energy sources in the European electricity sector

    NARCIS (Netherlands)

    Verzijlbergh, R.A.; de Vries, L.J.; Dijkema, G.P.J.; Herder, P.M.

    2016-01-01

    The integration of large amounts of variable renewable energy poses fundamental challenges to the operation and governance of the energy system. In this article we address the main institutional challenges that are caused by the integration of variable renewable energy sources like solar and wind

  6. A Comparison of the Effects of Group Dynamics on Individuals Assigned to Integral and Non-Integral Aircrews.

    Science.gov (United States)

    1987-09-01

    communications ( Hellriegel and Slocum, 1974), group confidence (Nieva et al, 1985), group norms (Henderson, 1985), leadership roles (Nieva et al, 1985), ano...finally, crew preference in combat (Nieva et al, 1985; Henderson, 1985; Hellriegel and Slocum, 1974). The research questions and hypotheses posed earlier...and intensity of communications are generally higher in high cohesive groups and lower in low cohesive groups (Golembiewski, 1962:165). Hellriegel

  7. An exact line integral representation of the physical optics scattered field: the case of a perfectly conducting polyhedral structure illuminated by electric Hertzian dipoles

    DEFF Research Database (Denmark)

    Johansen, Peter M.; Breinbjerg, Olav

    1995-01-01

    An exact line integral representation of the electric physical optics scattered field is presented. This representation applies to scattering configurations with perfectly electrically conducting polyhedral structures illuminated by a finite number of electric Hertzian dipoles. The positions...... of the source and observation points can be almost arbitrary. The line integral representation yields the exact same result as the conventional surface radiation integral; however, it is potentially less time consuming and particularly useful when the physical optics field can be augmented by a fringe wave...... contribution as calculated from physical theory of diffraction equivalent edge currents. The final expression for the line integral representation is lengthy but involves only simple functions and is thus suited for numerical calculation. To illustrate the exactness of the line integral representation...

  8. Model-based eco-driving and integrated powertrain control for (hybrid) electric vehicles

    NARCIS (Netherlands)

    Ivens, T.; Spronkmans, S.; Rosca, B.; Wilkins, S.

    2013-01-01

    The Netherlands Organisation for Applied Scientific Research (TNO) is engaged in research, development and testing of a range of technologies relating to hybrid and electric vehicle energy management and performance. The impact of driver behaviour on vehicle energy consumption is a significant

  9. Technological Literacy Learning with Cumulative and Stepwise Integration of Equations into Electrical Circuit Diagrams

    Science.gov (United States)

    Ozogul, G.; Johnson, A. M.; Moreno, R.; Reisslein, M.

    2012-01-01

    Technological literacy education involves the teaching of basic engineering principles and problem solving, including elementary electrical circuit analysis, to non-engineering students. Learning materials on circuit analysis typically rely on equations and schematic diagrams, which are often unfamiliar to non-engineering students. The goal of…

  10. Decision E92111 re: Alberta Power Limited Edmonton Power TransAlta Utilities Corporation in the matter of a joint application to adjust the price or pricing formula in respect of each consumer group at which electric energy was sold to the Electric Energy Marketing Agency in 1991; and in the matter of the forecast price or pricing formula in respect of each consumer group at which electric energy will be sold to the Electric Energy Marketing Agency in 1993

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-09

    Hearings were held before the Alberta Public Utilities Board to consider price adjustments and pricing formulas for electricity sales to various classes of customers by three Alberta utilities. These utilities (Alberta Power, Edmonton Power, and TransAlta Utilities) sell electricity to the Electric Energy Marketing Agency, which is responsible for ensuring uniform electricity prices across the province. The views of the applicants, the intervenors at the hearings, and the Board are summarized along with the Board decision. Issues considered at the hearings included the components of total electric utility costs of each utility, methods employed by the utilities in the functionalization of costs to upstream and downstream, classification of the upstream costs, allocation of generation and transmission costs to consumer groups, demand at the interface, and full-cost pricing and pricing guidelines for power produced by cogenerators. 6 tabs.

  11. [Integrated approach to comorbidity in patients with psoriasis.Working Group on Psoriasis-associated Comorbidities].

    Science.gov (United States)

    Daudén, E; Castañeda, S; Suárez, C; García-Campayo, J; Blasco, A J; Aguilar, M D; Ferrándiz, C; Puig, L; Sánchez-Carazo, J L

    2012-01-01

    The relationship between psoriasis and associated diseases has drawn particular interest in recent years. To provide appropriate management of psoriasis from an early stage, it is necessary to include prompt diagnosis of concomitant disease and to prevent and treat any comorbidity found. Such an integrated approach also serves to ensure that the drugs used to treat associated diseases do not interfere with the management of psoriasis, and vice versa. This clinical practice guideline on the management of comorbidity in psoriasis has been drawn up to help dermatologists to achieve an integrated approach to this inflammatory disease. The guide focuses primarily on the diseases most often found in patients with psoriasis, which include psoriatic arthritis, cardiovascular disease, nonalcoholic fatty liver disease, inflammatory bowel disease, lymphoma, skin cancer, anxiety, and depression. Cardiovascular disease is approached through the study of its major risk factors (obesity, diabetes mellitus, hypertension, dyslipidemia, and metabolic syndrome). Other cardiovascular risk factors related to lifestyle, such as smoking and alcohol consumption, are also discussed. The overall aim of this guide is to provide the dermatologist with a precise, easy to-use tool for systematizing the diagnosis of comorbidity in these patients and to facilitate decisions regarding referral and treatment once associated diseases have been found. The specific objectives are as follows: a) to review the most common diseases associated with psoriasis, including the prevalence of each one and its importance to the dermatologist; b) to provide guidelines for the physical examination, diagnostic tests, and clinical criteria on which to base a preliminary diagnosis; c) to establish criteria for the appropriate referral of patients with suspected comorbidity; d) to provide information on how therapies for psoriasis may modify the course of associated diseases, and e) to provide information concerning

  12. An integrated control strategy for the composite braking system of an electric vehicle with independently driven axles

    Science.gov (United States)

    Sun, Fengchun; Liu, Wei; He, Hongwen; Guo, Hongqiang

    2016-08-01

    For an electric vehicle with independently driven axles, an integrated braking control strategy was proposed to coordinate the regenerative braking and the hydraulic braking. The integrated strategy includes three modes, namely the hybrid composite mode, the parallel composite mode and the pure hydraulic mode. For the hybrid composite mode and the parallel composite mode, the coefficients of distributing the braking force between the hydraulic braking and the two motors' regenerative braking were optimised offline, and the response surfaces related to the driving state parameters were established. Meanwhile, the six-sigma method was applied to deal with the uncertainty problems for reliability. Additionally, the pure hydraulic mode is activated to ensure the braking safety and stability when the predictive failure of the response surfaces occurs. Experimental results under given braking conditions showed that the braking requirements could be well met with high braking stability and energy regeneration rate, and the reliability of the braking strategy was guaranteed on general braking conditions.

  13. Wind power integration with heat pumps, heat storages, and electric vehicles – Energy systems analysis and modelling

    DEFF Research Database (Denmark)

    Hedegaard, Karsten

    in an energy system context. Energy systems analyses reveal that the heat pumps can even without flexible operation contribute significantly to facilitating larger wind power investments and reducing system costs, fuel consumption, and CO2 emissions. When equipping the heat pumps with heat storages, only......The fluctuating and only partly predictable nature of wind challenges an effective integration of large wind power penetrations. This PhD thesis investigates to which extent heat pumps, heat storages, and electric vehicles can support the integration of wind power. Considering the gaps in existing...... research, main focus is put on individual heat pumps in the residential sector and the possibilities for flexible operation, using the heat storage options available. Extensive model development is performed that significantly improves the possibilities for analysing individual heat pumps and heat storages...

  14. An Integrated Model to Compare Net Electricity Generation for Carbon Dioxide- and Water-Based Geothermal Systems

    Science.gov (United States)

    Agarwal, Vikas

    Utilization of supercritical CO2 as a geothermal fluid instead of water has been proposed by Brown in 2000 and its advantages have been discussed by him and other researchers such as Karsten Pruess and Fouillac. This work assesses the net electricity that could be generated by using supercritical CO2 as a geothermal working fluid and compares it with water under the same temperature and pressure reservoir conditions. This procedure provides a method of direct comparison of water and CO2 as geothermal working fluids, in terms of net electricity generation over time given a constant geothermal fluid flow rate. An integrated three-part model has been developed to determine net electricity generation for CO2- and water-based geothermal reservoirs. This model consists of a wellbore model, reservoir simulation, and surface plant simulation. To determine the bottomhole pressure and temperature of the geothermal fluid (either water or CO2) in the injection well, a wellbore model was developed using fluid-phase, thermodynamic equations of state, fluid dynamics, and heat transfer models. A computer program was developed that solves for the temperature and pressure of the working fluid (either water or CO 2) down the wellbore by simultaneously solving for the fluid thermophysical properties, heat transfer, and frictional losses. For the reservoir simulation, TOUGH2, a general purpose numerical simulator has been used to model the temperature and pressure characteristics of the working fluid in the reservoir. The EOS1 module of TOUGH2 has been used for the water system and the EOS2 module of the TOUGH2 code has been employed for the CO2 case. The surface plant is simulated using CHEMCAD, a chemical process simulator, to determine the net electricity generated. A binary organic (iso-pentane) Rankine cycle is simulated. The calculated net electricity generated for the optimized water and CO2 systems are compared over the working time of the reservoir. Based on the theoretical

  15. Grid integration and smart grid implementation of emerging technologies in electric power systems through approximate dynamic programming

    Science.gov (United States)

    Xiao, Jingjie

    A key hurdle for implementing real-time pricing of electricity is a lack of consumers' responses. Solutions to overcome the hurdle include the energy management system that automatically optimizes household appliance usage such as plug-in hybrid electric vehicle charging (and discharging with vehicle-to-grid) via a two-way communication with the grid. Real-time pricing, combined with household automation devices, has a potential to accommodate an increasing penetration of plug-in hybrid electric vehicles. In addition, the intelligent energy controller on the consumer-side can help increase the utilization rate of the intermittent renewable resource, as the demand can be managed to match the output profile of renewables, thus making the intermittent resource such as wind and solar more economically competitive in the long run. One of the main goals of this dissertation is to present how real-time retail pricing, aided by control automation devices, can be integrated into the wholesale electricity market under various uncertainties through approximate dynamic programming. What distinguishes this study from the existing work in the literature is that whole- sale electricity prices are endogenously determined as we solve a system operator's economic dispatch problem on an hourly basis over the entire optimization horizon. This modeling and algorithm framework will allow a feedback loop between electricity prices and electricity consumption to be fully captured. While we are interested in a near-optimal solution using approximate dynamic programming; deterministic linear programming benchmarks are use to demonstrate the quality of our solutions. The other goal of the dissertation is to use this framework to provide numerical evidence to the debate on whether real-time pricing is superior than the current flat rate structure in terms of both economic and environmental impacts. For this purpose, the modeling and algorithm framework is tested on a large-scale test case

  16. Empirical support for global integrated assessment modeling: Productivity trends and technological change in developing countries' agriculture and electric power sectors

    Energy Technology Data Exchange (ETDEWEB)

    Sathaye, Jayant A.

    2000-04-01

    Integrated assessment (IA) modeling of climate policy is increasingly global in nature, with models incorporating regional disaggregation. The existing empirical basis for IA modeling, however, largely arises from research on industrialized economies. Given the growing importance of developing countries in determining long-term global energy and carbon emissions trends, filling this gap with improved statistical information on developing countries' energy and carbon-emissions characteristics is an important priority for enhancing IA modeling. Earlier research at LBNL on this topic has focused on assembling and analyzing statistical data on productivity trends and technological change in the energy-intensive manufacturing sectors of five developing countries, India, Brazil, Mexico, Indonesia, and South Korea. The proposed work will extend this analysis to the agriculture and electric power sectors in India, South Korea, and two other developing countries. They will also examine the impact of alternative model specifications on estimates of productivity growth and technological change for each of the three sectors, and estimate the contribution of various capital inputs--imported vs. indigenous, rigid vs. malleable-- in contributing to productivity growth and technological change. The project has already produced a data resource on the manufacturing sector which is being shared with IA modelers. This will be extended to the agriculture and electric power sectors, which would also be made accessible to IA modeling groups seeking to enhance the empirical descriptions of developing country characteristics. The project will entail basic statistical and econometric analysis of productivity and energy trends in these developing country sectors, with parameter estimates also made available to modeling groups. The parameter estimates will be developed using alternative model specifications that could be directly utilized by the existing IAMs for the manufacturing

  17. Social Integration and Religious Identity Expression among Dutch Muslims: The Role of Minority and Majority Group Contact

    Science.gov (United States)

    Maliepaard, Mieke; Phalet, Karen

    2012-01-01

    Against the background of contrasting religious versus secular norms in immigrant communities and in Dutch society, this study examines how religious identity expression is related to the social integration of Dutch Muslims within (a) Turkish or Moroccan minority groups and (b) Dutch majority groups. Using nationally representative survey data (N…

  18. Integrated energy & emission management for hybrid electric truck with SCR aftertreatment

    NARCIS (Netherlands)

    Kessels, J.T.B.A.; Willems, F.P.T.; Schoot, W.J.; Bosch, P.P.J. van den

    2010-01-01

    Energy management in hybrid vehicles typically relates to the vehicle powertrain, whereas emission management is associated with the combustion engine and aftertreatment system. To achieve maximum performance in fuel economy and regulated pollutants, the concept of (model-based) Integrated

  19. Sustainability performance for Brazilian electricity power industry: An assessment integrating social, economic and environmental issues

    NARCIS (Netherlands)

    Sartori, S.; Witjes, S.; Campos, L.M.S.

    2017-01-01

    The increased pressure on companies to address sustainability issues has resulted in the development of several voluntary corporate sustainability integration approaches. The array of existing approaches is large and overwhelming, resulting in companies not understanding what corporate

  20. Testing Group of Helicoidal Expander – Electric Generator at Comoti Test Bench, Using Air Supplied by 3 Compressors Type CU128G

    Directory of Open Access Journals (Sweden)

    Adrian UNGUREANU

    2012-12-01

    Full Text Available The paper describe a project dedicated to exploitation of natural gas, an important quantity of mechanical clean energy is loosed continuously by not using expansion energy in laminating process gas. A group of helicoidal expander – electrical generator was manufactured and tested. It is designed to produce electric energy for own facilities of a gas station or to supply local networks of gas distribution.

  1. Access Intervention in an Integrated, Prepaid Group Practice: Effects on Primary Care Physician Productivity

    Science.gov (United States)

    Conrad, Douglas; Fishman, Paul; Grembowski, David; Ralston, James; Reid, Robert; Martin, Diane; Larson, Eric; Anderson, Melissa

    2008-01-01

    Objective To estimate the joint effect of a multifaceted access intervention on primary care physician (PCP) productivity in a large, integrated prepaid group practice. Data Sources Administrative records of physician characteristics, compensation and full-time equivalent (FTE) data, linked to enrollee utilization and cost information. Study Design Dependent measures per quarter per FTE were office visits, work relative value units (WRVUs), WRVUs per visit, panel size, and total cost per member per quarter (PMPQ), for PCPs employed >0.25 FTE. General estimating equation regression models were included provider and enrollee characteristics. Principal Findings Panel size and RVUs per visit rose, while visits per FTE and PMPQ cost declined significantly between baseline and full implementation. Panel size rose and visits per FTE declined from baseline through rollout and full implementation. RVUs per visit and RVUs per FTE first declined, and then increased, for a significant net increase of RVUs per visit and an insignificant rise in RVUs per FTE between baseline and full implementation. PMPQ cost rose between baseline and rollout and then declined, for a significant overall decline between baseline and full implementation. Conclusions This organization-wide access intervention was associated with improvements in several dimensions in PCP productivity and gains in clinical efficiency. PMID:18662171

  2. Final Report. An Integrated Partnership to Create and Lead the Solar Codes and Standards Working Group

    Energy Technology Data Exchange (ETDEWEB)

    Rosenthal, Andrew [New Mexico State Univ., Las Cruces, NM (United States)

    2013-12-30

    The DOE grant, “An Integrated Partnership to Create and Lead the Solar Codes and Standards Working Group,” to New Mexico State University created the Solar America Board for Codes and Standards (Solar ABCs). From 2007 – 2013 with funding from this grant, Solar ABCs identified current issues, established a dialogue among key stakeholders, and catalyzed appropriate activities to support the development of codes and standards that facilitated the installation of high quality, safe photovoltaic systems. Solar ABCs brought the following resources to the PV stakeholder community; Formal coordination in the planning or revision of interrelated codes and standards removing “stove pipes” that have only roofing experts working on roofing codes, PV experts on PV codes, fire enforcement experts working on fire codes, etc.; A conduit through which all interested stakeholders were able to see the steps being taken in the development or modification of codes and standards and participate directly in the processes; A central clearing house for new documents, standards, proposed standards, analytical studies, and recommendations of best practices available to the PV community; A forum of experts that invites and welcomes all interested parties into the process of performing studies, evaluating results, and building consensus on standards and code-related topics that affect all aspects of the market; and A biennial gap analysis to formally survey the PV community to identify needs that are unmet and inhibiting the market and necessary technical developments.

  3. Dynamical mean-field theory and path integral renormalisation group calculations of strongly correlated electronic states

    Energy Technology Data Exchange (ETDEWEB)

    Heilmann, D.B.

    2007-02-15

    The two-plane HUBBARD model, which is a model for some electronic properties of undoped YBCO superconductors as well as displays a MOTT metal-to-insulator transition and a metal-to-band insulator transition, is studied within Dynamical Mean-Field Theory using HIRSCH-FYE Monte Carlo. In order to find the different transitions and distinguish the types of insulator, we calculate the single-particle spectral densities, the self-energies and the optical conductivities. We conclude that there is a continuous transition from MOTT to band insulator. In the second part, ground state properties of a diagonally disordered HUBBARD model is studied using a generalisation of Path Integral Renormalisation Group, a variational method which can also determine low-lying excitations. In particular, the distribution of antiferromagnetic properties is investigated. We conclude that antiferromagnetism breaks down in a percolation-type transition at a critical disorder, which is not changed appreciably by the inclusion of correlation effects, when compared to earlier studies. Electronic and excitation properties at the system sizes considered turn out to primarily depend on the geometry. (orig.)

  4. The effect of group integrative reminiscence therapy on mental health among older women living in Iranian nursing homes.

    Science.gov (United States)

    Musavi, Motahareh; Mohammadian, Sara; Mohammadinezhad, Bahar

    2017-10-01

    The present study aimed to determine the impact of group integrative reminiscence therapy on mental health of older women living in Iranian nursing home in 2016. A quasi-experimental design pre- and post-test was used in the present study. Purposive sampling was used to recruit participants who met the study criteria. The statistical population included 60 older women living in nursing home, among whom 46 having the inclusion criteria were selected as the sample. After completing the Goldberg's General Health Questionnaire, the older people were divided into intervention (N = 23) and control (N = 23) group by using block randomization method. The intervention groups were trained by integrative reminiscence therapy for 60-90 min 10 sessions, twice a week. Descriptive statistics and ANOVA were used for data analysis by SPSS software. The results indicated that group integrative reminiscence therapy significantly affected general mental health and physical dimensions, anxiety and insomnia, social functions and depression.

  5. Comparing electricity, heat and biogas storages’ impacts on renewable energy integration

    DEFF Research Database (Denmark)

    Østergaard, Poul Alberg

    2012-01-01

    Increasing penetration of fluctuating energy sources for electricity generation, heating, cooling and transportation increase the need for flexibility of the energy system to accommodate the fluctuations of these energy sources. Controlling production, controlling demand and utilising storage......-inclusive 100% renewable energy scenario developed for the Danish city Aalborg based on wind power, bio-resources and low-temperature geothermal heat. The article investigates the system impact of different types of energy storage systems including district heating storage, biogas storage and electricity...... options are the three general categories of measures that may be applied for ensuring balance between production and demand, however with fluctuating energy sources, options are limited, and flexible demand has also demonstrated limited perspective. This article takes its point of departure in an all...

  6. Electrical Impedance Spectroscopy for Detection of Cells in Suspensions Using Microfluidic Device with Integrated Microneedles

    OpenAIRE

    Muhammad Asraf Mansor; Masaru Takeuchi; Masahiro Nakajima; Yasuhisa Hasegawa; Mohd Ridzuan Ahmad

    2017-01-01

    In this study, we introduce novel method of flow cytometry for cell detection based on impedance measurements. The state of the art method for impedance flow cytometry detection utilizes an embedded electrode in the microfluidic to perform measurement of electrical impedance of the presence of cells at the sensing area. Nonetheless, this method requires an expensive and complicated electrode fabrication process. Furthermore, reuse of the fabricated electrode also requires an intensive and ted...

  7. Integrating High Levels of Renewables in to the Lanai Electric Grid

    Energy Technology Data Exchange (ETDEWEB)

    Kroposki, B.; Burman, K.; Keller, J.; Kandt, A.; Glassmire, J.; Lilienthal, P.

    2012-06-01

    The Hawaii Clean Energy Initiative (HCEI) is working with a team led by the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) and Sandia National Laboratory (Sandia) to assess the economic and technical feasibility of increasing the contribution of renewable energy sources on the island of Lanai with a stated goal of reaching 100% renewable energy. NREL and Sandia partnered with Castle & Cooke, Maui Electric Company (MECO), and SRA International to perform the assessment.

  8. Laser Droplet Brazing for the Electrical Contacting of Composite Materials with Integrated Active Elements

    Science.gov (United States)

    Held, Carolin; Quentin, Ulf; Heberle, Johannes; Gürtler, Franz-Josef; Weigl, Markus; Schmidt, Michael

    This paper describes a laser droplet brazing method for electrical contacting of sensitive piezoceramic actuator modules. In order to increase the reproducibility of the contacting process, the mass, the energy and the flight path of the braze droplets have to be controlled. For this reason, braze preforms are used which are molten by a single laser pulse. The system technology and first results will be presented, as well as a mechanical and metallurgical analysis of the brazed connections.

  9. Integrating renewable energy technologies in the electric supply industry: A risk management approach

    Energy Technology Data Exchange (ETDEWEB)

    Hoff, T.E. [Pacific Energy Group, Walnut Creek, CA (United States)

    1997-07-01

    Regulatory and technical forces are causing electric utilities to move from a natural monopoly to a more competitive environment. Associated with this movement is an increasing concern about how to manage the risks associated with the electric supply business. One approach to managing risks is to purchase financial instruments such as options and futures contracts. Another approach is to own physical assets that have low risk attributes or characteristics. This research evaluates how investments in renewable energy technologies can mitigate risks in the electric supply industry. It identifies risks that are known to be of concern to utilities and other power producers. These risks include uncertainty in fuel prices, demand, environmental regulations, capital cost, supply, and market structure. The research then determines how investments in renewables can mitigate these risks. Methods are developed to calculate the value of renewables in terms of their attributes of fuel costs, environmental costs, lead-time, modularity, availability, initial capital costs, and investment reversibility. Examples illustrate how to apply the methods.

  10. Integration of Electric Vehicles into the Power Distribution Network with a Modified Capacity Allocation Mechanism

    Directory of Open Access Journals (Sweden)

    Junjie Hu

    2017-02-01

    Full Text Available The growing penetration of electric vehicles (EVs represents an operational challenge to system operators, mainly at the distribution level by introducing congestion and voltage drop problems. To solve these potential problems, a two-level coordination approach is proposed in this study. An aggregation entity, i.e., an EV virtual power plant (EV-VPP, is used to facilitate the interaction between the distribution system operator (DSO and EV owners considering the decentralized electricity market structure. In level I, to prevent the line congestion and voltage drop problems, the EV-VPP internally respects the line and voltage constraints when making optimal charging schedules. In level II, to avoid power transformer congestion problems, this paper investigates three different coordination mechanisms, or power transformer capacity allocation mechanisms, between the DSO and the EV-VPPs, considering the case of EVs charging and discharging. The three mechanisms include: (1 a market-based approach; (2 a pro-rata approach; and (3 a newly-proposed constrained market-based approach. A case study considering a 37-bus distribution network and high penetration of electric vehicles is presented to demonstrate the effectiveness of the proposed coordination mechanism, comparing with the existing ones.

  11. Optimal Scheduling of a Battery Energy Storage System with Electric Vehicles’ Auxiliary for a Distribution Network with Renewable Energy Integration

    Directory of Open Access Journals (Sweden)

    Yuqing Yang

    2015-09-01

    Full Text Available With global conventional energy depletion, as well as environmental pollution, utilizing renewable energy for power supply is the only way for human beings to survive. Currently, distributed generation incorporated into a distribution network has become the new trend, with the advantages of controllability, flexibility and tremendous potential. However, the fluctuation of distributed energy resources (DERs is still the main concern for accurate deployment. Thus, a battery energy storage system (BESS has to be involved to mitigate the bad effects of DERs’ integration. In this paper, optimal scheduling strategies for BESS operation have been proposed, to assist with consuming the renewable energy, reduce the active power loss, alleviate the voltage fluctuation and minimize the electricity cost. Besides, the electric vehicles (EVs considered as the auxiliary technique are also introduced to attenuate the DERs’ influence. Moreover, both day-ahead and real-time operation scheduling strategies were presented under the consideration with the constraints of BESS and the EVs’ operation, and the optimization was tackled by a fuzzy mathematical method and an improved particle swarm optimization (IPSO algorithm. Furthermore, the test system for the proposed strategies is a real distribution network with renewable energy integration. After simulation, the proposed scheduling strategies have been verified to be extremely effective for the enhancement of the distribution network characteristics.

  12. Modeling the effects of electrical and non-electrical parameters on the material removal and surface integrity in case of µEDM of a non-conductive ceramic material using a combined fuzzy-AOM approach

    DEFF Research Database (Denmark)

    Puthumana, Govindan

    2016-01-01

    Micro-EDM is a non-contact process based on the thermoelectric energy between a tool electrode and a workpiece. In μEDM process, the mechanism of material removal is melting and evaporation. The thermal energy in the discharge plasma helps remove material from the workpiece, at the same time...... and surface integrity for a non-conductive ceramic material. The fuzzy logic modeling system is employed for predicting the μEDM process responses. The trends in the material removal rate and hardness values with the chosen electrical and non-electrical parameter for the model and obtained using AOM approach...... deteriorates the quality and integrity of the workpiece surface. The material removal phenomenon in μEDM of partially conductive and non-conductive materials is very complex. This paper presents a novel approach to model the effects of electrical and non-electrical parameters on the material removal phenomenon...

  13. The air quality and human health effects of integrating utility-scale batteries into the New York State electricity grid

    Science.gov (United States)

    Gilmore, Elisabeth A.; Apt, Jay; Walawalkar, Rahul; Adams, Peter J.; Lave, Lester B.

    In a restructured electricity market, utility-scale energy storage technologies such as advanced batteries can generate revenue by charging at low electricity prices and discharging at high prices. This strategy changes the magnitude and distribution of air quality emissions and the total carbon dioxide (CO 2) emissions. We evaluate the social costs associated with these changes using a case study of 500 MW sodium-sulfur battery installations with 80% round-trip efficiency. The batteries displace peaking generators in New York City and charge using off-peak generation in the New York Independent System Operator (NYISO) electricity grid during the summer. We identify and map charging and displaced plant types to generators in the NYISO. We then convert the emissions into ambient concentrations with a chemical transport model, the Particulate Matter Comprehensive Air Quality Model with extensions (PMCAM x). Finally, we transform the concentrations into their equivalent human health effects and social benefits and costs. Reductions in premature mortality from fine particulate matter (PM 2.5) result in a benefit of 4.5 ¢ kWh -1 and 17 ¢ kWh -1 from displacing a natural gas and distillate fuel oil fueled peaking plant, respectively, in New York City. Ozone (O 3) concentrations increase due to decreases in nitrogen oxide (NO x) emissions, although the magnitude of the social cost is less certain. Adding the costs from charging, displacing a distillate fuel oil plant yields a net social benefit, while displacing the natural gas plant has a net social cost. With the existing base-load capacity, the upstate population experiences an increase in adverse health effects. If wind generation is charging the battery, both the upstate charging location and New York City benefit. At 20 per tonne of CO 2, the costs from CO 2 are small compared to those from air quality. We conclude that storage could be added to existing electricity grids as part of an integrated strategy from a

  14. Integrated life-cycle assessment of electricity-supply scenarios confirms global environmental benefit of low-carbon technologies.

    Science.gov (United States)

    Hertwich, Edgar G; Gibon, Thomas; Bouman, Evert A; Arvesen, Anders; Suh, Sangwon; Heath, Garvin A; Bergesen, Joseph D; Ramirez, Andrea; Vega, Mabel I; Shi, Lei

    2015-05-19

    Decarbonization of electricity generation can support climate-change mitigation and presents an opportunity to address pollution resulting from fossil-fuel combustion. Generally, renewable technologies require higher initial investments in infrastructure than fossil-based power systems. To assess the tradeoffs of increased up-front emissions and reduced operational emissions, we present, to our knowledge, the first global, integrated life-cycle assessment (LCA) of long-term, wide-scale implementation of electricity generation from renewable sources (i.e., photovoltaic and solar thermal, wind, and hydropower) and of carbon dioxide capture and storage for fossil power generation. We compare emissions causing particulate matter exposure, freshwater ecotoxicity, freshwater eutrophication, and climate change for the climate-change-mitigation (BLUE Map) and business-as-usual (Baseline) scenarios of the International Energy Agency up to 2050. We use a vintage stock model to conduct an LCA of newly installed capacity year-by-year for each region, thus accounting for changes in the energy mix used to manufacture future power plants. Under the Baseline scenario, emissions of air and water pollutants more than double whereas the low-carbon technologies introduced in the BLUE Map scenario allow a doubling of electricity supply while stabilizing or even reducing pollution. Material requirements per unit generation for low-carbon technologies can be higher than for conventional fossil generation: 11-40 times more copper for photovoltaic systems and 6-14 times more iron for wind power plants. However, only two years of current global copper and one year of iron production will suffice to build a low-carbon energy system capable of supplying the world's electricity needs in 2050.

  15. An electrically actuated imperfect microbeam: Dynamical integrity for interpreting and predicting the device response

    KAUST Repository

    Ruzziconi, Laura

    2013-02-20

    In this study we deal with a microelectromechanical system (MEMS) and develop a dynamical integrity analysis to interpret and predict the experimental response. The device consists of a clamped-clamped polysilicon microbeam, which is electrostatically and electrodynamically actuated. It has non-negligible imperfections, which are a typical consequence of the microfabrication process. A single-mode reduced-order model is derived and extensive numerical simulations are performed in a neighborhood of the first symmetric natural frequency, via frequency response diagrams and behavior chart. The typical softening behavior is observed and the overall scenario is explored, when both the frequency and the electrodynamic voltage are varied. We show that simulations based on direct numerical integration of the equation of motion in time yield satisfactory agreement with the experimental data. Nevertheless, these theoretical predictions are not completely fulfilled in some aspects. In particular, the range of existence of each attractor is smaller in practice than in the simulations. This is because these theoretical curves represent the ideal limit case where disturbances are absent, which never occurs under realistic conditions. A reliable prediction of the actual (and not only theoretical) range of existence of each attractor is essential in applications. To overcome this discrepancy and extend the results to the practical case where disturbances exist, a dynamical integrity analysis is developed. After introducing dynamical integrity concepts, integrity profiles and integrity charts are drawn. They are able to describe if each attractor is robust enough to tolerate the disturbances. Moreover, they detect the parameter range where each branch can be reliably observed in practice and where, instead, becomes vulnerable, i.e. they provide valuable information to operate the device in safe conditions according to the desired outcome and depending on the expected disturbances

  16. Griffiss Air Force Base integrated resource assessment. Volume 3, Electric resource assessment

    Energy Technology Data Exchange (ETDEWEB)

    Armstrong, P.R.; Shankle, S.A.; Elliott, D.B.; Stucky, D.J.; Keller, J.M.; Wahlstrom, R.R.; Dagle, J.E.; Gu, A.Y.

    1993-09-01

    The US Air Force Air Combat Command (ACC) has tasked the US Department of Energy (DOE) Federal Energy Management Program (FEMP) to identify, evaluate, and assist in acquiring all cost-effective energy projects at Griffiss Air Force Base (AFB). FEMP, with support from the Pacific Northwest Laboratory (PNL), is designing this model program for federal customers served by the Niagara Mohawk Power Company. The program with Griffiss AFB will (1) identify and evaluate all cost-effective electric energy projects; (2) develop a schedule for project acquisition considering project type, size, timing, capital requirements, as well as energy and dollar savings; and (3) secure 100% of the financing required to implement electric energy efficiency projects from Niagara Mohawk and have them procure the necessary contractors to perform detailed audits and install the technologies. This report provides the results of the electric energy resource opportunity (ERO) assessments performed by PNL at one of Niagara Mohawk`s primary federal facilities, the ACC Griffiss AFB facility located near Rome, New York. The results of the analyses of EROs are presented in seven common energy end-use categories. A narrative description of each ERO provides information on the initial cost, energy and dollar savings; impacts on operations and maintenance (O&M); and, when applicable, a discussion of energy supply and demand, energy security, and environmental issues. The evaluation methodology and technical and cost assumptions are also described for each ERO. Summary tables present the operational performance of energy end-use equipment before and after the implementation of each ERO and the results of the life-cycle cost analysis indicating the net present value (NPV) and savings-to-investment ratio (SIR) of each ERO.

  17. The Community Integration Questionnaire: factor structure across racial/ethnic groups in persons with traumatic brain injury.

    Science.gov (United States)

    Lequerica, Anthony H; Chiaravalloti, Nancy D; Sander, Angelle M; Pappadis, Monique R; Arango-Lasprilla, Juan Carlos; Hart, Tessa; Baños, James H; Marquez De La Plata, Carlos D; Hammond, Flora M; Sherman, Tanya E

    2013-01-01

    To examine the factor structure and construct validity of the Community Integration Questionnaire, a widely used measure of community participation among individuals with traumatic brain injury (TBI), among 3 racial/ethnic groups. Prospective longitudinal cohort study. Enrollment in acute inpatient TBI rehabilitation with follow-up at 1 year after injury. A total of 1756 persons with TBI enrolled in the Traumatic Brain Injury Model Systems (TBIMS) national Database. Community Integration Questionnaire at 1 year after injury. The goodness of fit for the factor structure of the Community Integration Questionnaire, separating items into Home Competency, Social Integration, and Productive Activity, was satisfactory for whites but not for blacks or Hispanics. Clinicians and researchers should take race/ethnicity into account when utilizing measures of community integration.

  18. Resource Planning Model: An Integrated Resource Planning and Dispatch Tool for Regional Electric Systems

    Energy Technology Data Exchange (ETDEWEB)

    Mai, T.; Drury, E.; Eurek, K.; Bodington, N.; Lopez, A.; Perry, A.

    2013-01-01

    This report introduces a new capacity expansion model, the Resource Planning Model (RPM), with high spatial and temporal resolution that can be used for mid- and long-term scenario planning of regional power systems. Although RPM can be adapted to any geographic region, the report describes an initial version of the model adapted for the power system in Colorado. It presents examples of scenario results from the first version of the model, including an example of a 30%-by-2020 renewable electricity penetration scenario.

  19. Potential Analysis of Regulating Power from Electric Vehicle (EV) Integration in Denmark

    DEFF Research Database (Denmark)

    Wu, Qiuwei; Nielsen, Arne Hejde; Østergaard, Jacob

    2011-01-01

    The potential analysis of having electric vehicles (EVs) provide regulating power has been implemented. The possible regulating power capacity from EVs and the economic return for EV users by providing regulating power are obtained. A spot price based charging schedule scenario has been used to do...... the day-ahead charging schedule for all EVs based on the predicted driving pattern. On top of the obtained charging schedule, the predicted EV availability and the charging schedule are used to calculate the possible regulating power capacity from EVs for both up regulating power and down regulating power...

  20. Biological Cell Identification by Integrating Micro-Fluidics, Electrical Impedance Spectroscopy and Stochastic Estimation

    Science.gov (United States)

    2007-03-01

    responsible for the inductive reactance is a negative electromotive force ( emf ) caused by an induced magnetic �eld. A magnetic �eld is always induced in...the presence of a changing current. The changing magnetic �eld produces an emf that counteracts the applied voltage and reduces current �ow thus...Karolinska Institutet in Stockholm entitled "Skin Cancer as Seen by Electrical Impedance" [1]. The thesis describes Åberg�s experiments to detect skin cancer

  1. Role of storage technologies to integrate high shares of renewable electricity generation into the electricity system of Germany. Simulation and optimization; Rolle und Bedeutung der Stromspeicher bei hohen Anteilen erneuerbarer Energien in Deutschland. Speichersimulation und Betriebsoptimierung

    Energy Technology Data Exchange (ETDEWEB)

    Hartmann, Niklas

    2013-06-13

    The share of renewable electricity generation of gross electricity consumption in Germany increased from 6.8 % to about 20 % during the years of 2000 and 2011. This share will increase even more in the future. The greater part of the renewable electricity generation is characterized by significant fluctuations, which can only be planned to a limited extent. Hence, the electricity system in Germany faces the challenge to integrate an increasing amount of fluctuating renewable electricity generation. Additionally the system stability needs to be ensured, despite a decreasing capacity in conventional power plants. One option to support the integration of large amounts of renewable electricity generation and to enhance system stability is the deployment of storage technologies. The aim of this research was to analyze the role of storage technologies to integrate high shares of renewable electricity generation into the electricity system of Germany. To achieve this aim, adiabatic compressed air energy storage, diabatic compressed air energy storage and mobile battery storage systems were simulated and compared with a pumped hydro storage as the reference storage system. Key characteristics of these storage systems were modeled within a fundamental stochastic unit commitment model of the German power markets (Joint-Market-Model) in order to analyze the effect of the implementation of these storage systems on the overall cost of the electricity system. Additionally, the operation of the storages in an electricity system with high shares of renewable energy was evaluated. The results show that the integration of large shares of renewable electricity generation into the grid can only be achieved with a substantial implementation of storage systems. To integrate 50 % of renewable energy, a storage power of 27 GW and storage capacity of 245 GWh is needed. For a renewable energy share of 80 %, a storage power of 78 GW and a storage capacity of 6.3 TWh are necessary. A 100

  2. A Randomized Clinical Trial of an Integrative Group Therapy for Children With Severe Mood Dysregulation

    Science.gov (United States)

    Waxmonsky, James G.; Waschbusch, Daniel A.; Belin, Peter; Li, Tan; Babocsai, Lysett; Humphrey, Hugh; Pariseau, Meaghan E.; Babinski, Dara E.; Hoffman, Martin T.; Haak, Jenifer L.; Mazzant, Jessica A.; Fabiano, Gregory A.; Pettit, Jeremy W.; Fallahazad, Negar; Pelham, William E.

    2015-01-01

    Objective Non-episodic irritability is a common and impairing problem, leading to the development of the diagnoses severe mood dysregulation (SMD) and disruptive mood dysregulation disorder (DMDD). No psychosocial therapies have been formally evaluated for either, with medication being the most common treatment. This study examined the feasibility and efficacy of a joint parent–child intervention for SMD. Method Sixty-eight particpants ages 7–12 with attention-deficit/hyperactivity disorder (ADHD) and SMD were randomly assigned to the 11-week therapy or community-based psychosocial treatment. All participants were first stabilized on psychostimulant medication by study physicians. Fifty-six still manifested impairing SMD symptoms and entered the therapy phase. Masked evaluators assessed participants at baseline, midpoint, and endpoint, with therapy participants reassessed 6 weeks later. Results All but two therapy participants attended the majority of sessions (n=29), with families reporting high levels of satisfaction. The primary outcome of change in mood symptoms using the Mood Severity Index (MSI) did not reach significance except in the subset attending the majority of sessions (effect size [ES]=0.53). Therapy was associated with significantly greater improvement in parent-rated irritability (ES=0.63). Treatment effects for irritability but not MSI diminished after therapy stopped. Little impact on ADHD symptoms was seen. Results may not be generalizable to youth with SMD and different comorbidities than seen in this sample of children with ADHD and are limited by the lack of a gold standard for measuring change in SMD symptoms. Conclusion While failing to significantly improve mood symptoms versus community treatment, the integrative therapy was found to be a feasible and efficacious treatment for irritability in participants with SMD and ADHD. Clinical trial registration information Group-Based Behavioral Therapy Combined With Stimulant Medication for

  3. Greenhouse with integrated conversion of heat radiation to electricity. Electricity producing greenhouse (ELKAS); Kas met geintegreerde omzetting van warmtestraling naar elektrische energie. Elektriciteits Leverende Kas (ELKAS)

    Energy Technology Data Exchange (ETDEWEB)

    Sonneveld, P.J.; Swinkels, G.L.A.M.; Bot, G.P.A.

    2007-05-15

    A new development has started in a second generation of energy-supplying greenhouses. The objective of this study is to develop the technology that converts the heat from solar energy into high quality electrical energy with photovoltaic (PV) cells. The PV cells require extra cooling due to the heat load of the concentrated radiation. This heat can also be used for storage in an aquifer of heat buffer. The characteristics of different solar cell materials have been examined for this application. All parts referred to in this article will be integrated in a new type of greenhouse of approximately 75 m{sup 2} on the premises of Plant Research International (PRI). (mk) [Dutch] Er is een nieuwe ontwikkeling gestart in een tweede generatie energieleverende kassen. Doel van dit project is een technologie te ontwikkelen die het warmtedeel van de zonne-energie omzet in hoogwaardige elektrische en thermische energie. Gereflecteerde straling wordt omgezet in elektrische energie met photovoltaische (PV) cellen. De PV cellen vereisen extra koeling door de hoge warmtelast van de geconcentreerde straling. Deze warmte kan eventueel gebruikt worden voor opslag in een aquifer of warmtebuffer. De eigenschappen van verschillende zonnecel materialen zijn onderzocht voor deze toepassing. Alle in dit artikel genoemde onderdelen worden geintegreerd in een nieuw type kas van ongeveer 75 m{sup 2} op het terrein van Plant Research International (PRI)

  4. Electricity cost effects of expanding wind power and integrating energy sectors

    DEFF Research Database (Denmark)

    Rodriguez, Victor Adrian Maxwell; Sperling, Karl; Hvelplund, Frede Kloster

    2015-01-01

    energy sectors may be an effective means of dealing with these concerns. The following article takes the case of a community owned renewable energy project as a microcosm for the entire Danish energy system. The local project seeks to integrate energy sectors so as to create physical and financial...

  5. Electricity generation by a plant microbial fuel cell with an integrated oxygen reducing biocathode

    NARCIS (Netherlands)

    Wetser, K.; Sudirjo, E.; Buisman, C.J.N.; Strik, D.P.B.T.B.

    2015-01-01

    In this study we show that a chemical ferricyanide cathode can be replaced by a biological oxygen reducing cathode in a plant microbial fuel cell (PMFC) with a new record power output. A biocathode was successfully integrated in a PMFC and operated for 151 days. Plants growth continued and the power

  6. Tiny Integrated Network Analyzer for Noninvasive Measurements of Electrically Small Antennas

    DEFF Research Database (Denmark)

    Buskgaard, Emil Feldborg; Krøyer, Ben; Tatomirescu, Alexandru

    2016-01-01

    the system. The tiny integrated network analyzer is a stand-alone Arduino-based measurement system that utilizes the transmit signal of the system under test as its reference. It features a power meter with triggering ability, on-board memory, universal serial bus, and easy extendibility with general...

  7. UAS Integration in the NAS Project Overview: RTCA SC-228 Plenary DAA Working Group 5

    Science.gov (United States)

    Randall, Debra K.

    2014-01-01

    The presentation is intended to allow the public to know and understand NASA's plans for integrated test to allow them the opportunity to provide feedback and suggestions. The integrated testing will support verification and validation of the RTCA SC-228 UAS minimum operation performance standard requirements.

  8. SPORT AS MEANS OF SOCIAL INTEGRATION FOR LESS FAVORED ETHNIC GROUPS

    Directory of Open Access Journals (Sweden)

    Simion Gheorghe

    2010-04-01

    Full Text Available Integration of individuals in society depends largely on their compatibility, the way they are satisfied or not by their work and involvement, leading to the achievement of individual ideals. Mass or performance sport is one of the most important ways that positively influence behavior integration necessary to solve environmental situations, thereby the part becoming a functional element of the system.

  9. Using an Integrated Group Decision Method Based on SVM, TFN-RS-AHP, and TOPSIS-CD for Cloud Service Supplier Selection

    Directory of Open Access Journals (Sweden)

    Lian-hui Li

    2017-01-01

    Full Text Available To solve the cloud service supplier selection problem under the background of cloud computing emergence, an integrated group decision method is proposed. The cloud service supplier selection index framework is built from two perspectives of technology and technology management. Support vector machine- (SVM- based classification model is applied for the preliminary screening to reduce the number of candidate suppliers. A triangular fuzzy number-rough sets-analytic hierarchy process (TFN-RS-AHP method is designed to calculate supplier’s index value by expert’s wisdom and experience. The index weight is determined by criteria importance through intercriteria correlation (CRITIC. The suppliers are evaluated by the improved TOPSIS replacing Euclidean distance with connection distance (TOPSIS-CD. An electric power enterprise’s case is given to illustrate the correctness and feasibility of the proposed method.

  10. Group integrative reminiscence therapy on self-esteem, life satisfaction and depressive symptoms in institutionalised older veterans.

    Science.gov (United States)

    Wu, Li-Fen

    2011-08-01

    The purpose of this study was to use group integrative reminiscence as a nursing intervention to evaluate the immediate effects on self-esteem, life satisfaction and depressive symptoms for a special group named 'institutionalised older veterans' after a 12-week intervention. The study group comprised institutionalised older veterans with combat experience, including being wounded in war and who were twice forced to relocate. The group participants had lower life satisfaction, and greater use for mental health services and greater non-specific health complaints were reported from this group. Reminiscence therapy has been considered an effective nursing intervention, but the effects on institutionalised older veterans have not been studied. A quasi-experimental design and purposive sampling were conducted. A total of 74 participants were studied with pre- and post-tests to measure the effect of group integrative reminiscence therapy. The activity was held once weekly for 12 weeks. The Life Satisfaction Index A, self-esteem scale and Geriatric Depression Scale Short Form were used as research tools, and the t-test, Fisher's exact test and generalised estimating equation were used for data analysis. All participants were male, with an average age of 81·34 years old, 91·9% unmarried and were in bad health. After 12 weeks of intervention, the reminiscence groups significantly improved their self-esteem and life satisfaction and decreased depressive symptoms compared with control groups. Group integrative reminiscence revealed immediate effects on improving the self-esteem and life satisfaction of institutionalised older veterans, and depressive symptoms were also decreased. Moreover, a sense of positive self-value and belonging to the institution was produced. Group integrative reminiscence is an applicable nursing intervention for vulnerable persons such as institutionalised older veterans. A structured protocol based on the characteristics of the residents and the

  11. An economic analysis of used electric vehicle batteries integrated into commercial building microgrids

    Energy Technology Data Exchange (ETDEWEB)

    Beer, Sebastian; Dallinger, David [Fraunhofer Institute for Systems and Innovation Research, Karlsruhe (Germany). Competence Center Energy Policy and Energy Systems; Gomez, Tomas; Momber, Ilan [Madrid Univ. (Spain); Marnay, Chris; Stadler, Michael; Lai, Judy [Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab), Berkeley, CA (United States)

    2011-07-01

    Current policies in the U.S. and other countries are trying to stimulate electric transportation deployment. Consequently, plug-in electric vehicle (PEV) adoption will presumably spread among vehicle users. With the increased diffusion of PEVs, lithium-ion batteries will also enter the market on a broad scale. However, their costs are still high and ways are needed to optimally deploy vehicle batteries in order to account for the higher initial outlay. This study analyzed the possibility of extending the lifecycle of PEV batteries to a secondary, stationary application. Battery usage can be optimized by installing used battery packs in buildings' microgrids. Employed as decentralized storage, batteries can be used for a microgrid's power supply and provide ancillary services (A/S). This scenario has been modeled with the Distributed Energy Resources Customer Adoption Model (DER-CAM), which identifies optimal equipment combinations to meet microgrid requirements at minimum cost, carbon footprint, or other criteria. Results show that used PEV batteries can create significant monetary value if subsequently used for stationary applications. (orig.)

  12. Integrated petrophysics and rock physics modeling for well log interpretation of elastic, electrical, and petrophysical properties

    Science.gov (United States)

    Wu, Wenting; Grana, Dario

    2017-11-01

    Rock and fluid volumetric properties, such as porosity, saturation, and mineral volumes, are generally estimated from petrophysical measurements such as density, resistivity, neutron porosity and gamma ray, through petrophysical equations. The computed petrophysical properties and sonic log measurements are generally used to estimate the petro-elastic relationship between elastic and rock and fluid volumetric properties used in reservoir characterization. In this paper, we present a unified workflow that includes petrophysical relations and rock physics models for the estimation of rock and fluid properties from elastic, electrical, and petrophysical (porosity, density, and lithology) measurements. The multi-physics model we propose has the advantage of accounting for the coupled effect of rock and fluid properties in the joint petro-elastic and electrical domains, and potentially reduce the uncertainty in the well log interpretation. Furthermore, the presented workflow can be eventually extended to three-dimensional reservoir characterization problems, where seismic and electromagnetic data are available. To demonstrate the validity of the methodology, we show the application of this multi-physics model to both laboratory measurements and well log data.

  13. Electricity production and sludge reduction by integrating microbial fuel cells in anoxic-oxic process.

    Science.gov (United States)

    Xiao, Benyi; Luo, Meng; Wang, Xiao; Li, Zuoxing; Chen, Hong; Liu, Junxin; Guo, Xuesong

    2017-11-01

    To produce energy and reduce sludge production from the treatment of municipal wastewater, four identical microbial fuel cells (MFCs) were constructed in an anoxic-oxic (A/O) process (MFCs-A/O system). Experimental results indicated that this system enhance the removals of chemical oxygen demand (COD) and total nitrogen (TN). The electricity produced by each MFC were ranged from 0.371 to 0.477V (voltage) and from 138 to 227mW/m 3 (power density) at the stable stage, when the external resistance was fixed at 1000Ω. The coulombic efficiency of the MFCs-A/O system ranged from 0.31% to 1.68% (mean=0.72%) at the stable stage, respectively. The removals of COD and TN in the MFCs-A/O system were slightly higher than those in the control system. Compared with the control system, the MFCs-A/O system can reduce waste activated sludge production and sludge yield by 24.0% and 24.2%, respectively. The experimental results indicated that the MFC constructed in A/O system improves wastewater treatment and the MFCs-A/O system can produce electricity while reducing sludge production and increasing wastewater treatment efficiency. Copyright © 2017 Elsevier Ltd. All rights reserved.

  14. Fabrication and Validation of an Organ-on-chip System with Integrated Electrodes to Directly Quantify Transendothelial Electrical Resistance

    Science.gov (United States)

    van der Helm, Marinke W.; Odijk, Mathieu; Frimat, Jean-Philippe; van der Meer, Andries D.; Eijkel, Jan C.T.; van den Berg, Albert; Segerink, Loes I.

    2017-01-01

    Organs-on-chips, in vitro models involving the culture of (human) tissues inside microfluidic devices, are rapidly emerging and promise to provide useful research tools for studying human health and disease. To characterize the barrier function of cell layers cultured inside organ-on-chip devices, often transendothelial or transepithelial electrical resistance (TEER) is measured. To this end, electrodes are usually integrated into the chip by micromachining methods to provide more stable measurements than is achieved with manual insertion of electrodes into the inlets of the chip. However, these electrodes frequently hamper visual inspection of the studied cell layer or require expensive cleanroom processes for fabrication. To overcome these limitations, the device described here contains four easily integrated electrodes that are placed and fixed outside of the culture area, making visual inspection possible. Using these four electrodes the resistance of six measurement paths can be quantified, from which the TEER can be directly isolated, independent of the resistance of culture medium-filled microchannels. The blood-brain barrier was replicated in this device and its TEER was monitored to show the device applicability. This chip, the integrated electrodes and the TEER determination method are generally applicable in organs-on-chips, both to mimic other organs or to be incorporated into existing organ-on-chip systems. PMID:28994800

  15. Method of Integral Equations for the Problem of Electrical Tomography in a Medium with Ground Surface Relief

    Directory of Open Access Journals (Sweden)

    Tolkyn Mirgalikyzy

    2015-01-01

    Full Text Available The direct task of the subsurface exploration of a homogeneous medium with surface relief by the resistivity method is analyzed. To calculate the resistivity field for such a medium, the method of integral equations was successfully applied for the first time. The corresponding integral equation for the density of secondary current sources on the surface of the medium was established. The method of computational grid construction, adapted to the characteristics of the surface relief, was developed for the numerical solution of the integral equation. This method enables the calculation of the resistivity field of a point source on a surface that is not smooth and allows for steep ledges. Numerical examples of the calculation of resistivity fields and apparent resistivity are shown. The anomalies of apparent resistivity arising from the deviation of the surface shape from a flat medium were quantitatively established as model examples. Calculations of apparent resistivity for the direct current sounding method were carried out using modifications of the electrical tomography approach.

  16. A Relational Perspective on Knowledge Integration between Self-Contained Work Groups: A Case Study in the Health Care Sector

    Science.gov (United States)

    Wismén, May; Carlsson, Sven

    For many organizations, their abilities to create, share, exchange, integrate, and use knowledge have major impacts on their performance (Nonaka and Takeuchi 1995; von Krogh et al. 2000); and organizations are increasingly dependent on different types of intra- and inter-organizational collaborations (Malone 2004). This paper focuses on intra-organizational collaboration between different self-contained work groups. A self-contained work group has specific goals and the primary resources it needs to perform its tasks, but since it is part of an organization it also needs to have different types of intra- and inter-organizational relationships. Information systems (IS), which can be manual, digital, or a combination, can play different roles in the transfer of information between individuals and groups. Since information transferred between collaborating self-contained work groups must be interpreted, it can be fruitful to explore the collaboration process from a knowledge and knowledge integration perspective. An increased understanding of this area can enhance explaining and designing of such processes. The overall research questions are: how knowledge integration between self-contained work groups is performed, and if there are inaccuracies in the process, how can we explain why the integration is less than successful.

  17. Multistability in an electrically actuated carbon nanotube: A dynamical integrity perspective

    KAUST Repository

    Ruzziconi, Laura

    2013-07-12

    This study deals with a slacked carbon nanotube, which is electrostatically and electrodynamically actuated. After introducing a reduced-order model, we investigate the overall scenario of the device response when both the frequency and the electrodynamic voltage are varied. Extensive numerical simulations are performed. The nanostructure exhibits several competing attractors with different characteristics. We examine the multistability in detail, based on numerical integration of the equation of motion in time, since it leads to a considerable versatility of behavior, which may be desirable in applications. Nevertheless, these results do not take into account the presence of disturbances, which are unavoidable under realistic conditions. To extend them to the practical case where disturbances exist, we develop a dynamical integrity analysis. This is performed via the combined use of several dynamical integrity tools. Analyzing the potential well, we observe that the device may be vulnerable to pull-in considerably before the theoretical inevitable escape. Focusing on the safe range, the main attractors are examined to investigate the practical probability to catch them and the practical disappearance of the main ones. Special attention is devoted to the practical final response, to detect where the safe jump to another attractor may be ensured and where instead dynamic pull-in may arise. We build the integrity charts, which are able to illustrate if and in which parameter range the theoretical predictions can be guaranteed in practice. They may be used to establish safety factors to effectively operate the device according to the desired outcome, depending on the expected disturbances. © 2013 Springer Science+Business Media Dordrecht.

  18. Supporting involvement of electric vehicles in distribution grids: Lowering the barriers for a proactive integration

    DEFF Research Database (Denmark)

    Knezovic, Katarina; Marinelli, Mattia; Zecchino, Antonio

    2017-01-01

    where active distribution grid management schemes are still to be developed, it is important to recognise the barriers for active EV involvement in the early stage of the development. This manuscript focuses on identifying these barriers from a technology and infrastructure perspective as well as from......Increasing environmental concerns are driving an evolution of the energy system in which electric vehicles (EVs) play an important role. Still, as the EV number increases, the adverse impact of charging is observed more widely, especially at the low-voltage level where high EV concentrations cause...... various detrimental effects due to the coincidence between EV charging and residential peak load. However, if managed properly, EVs become flexible resources which can improve the system operation, making them an attractive asset for the distribution system operator. With the recent technology development...

  19. Probabilistic Constrained Load Flow Considering Integration of Wind Power Generation and Electric Vehicles

    DEFF Research Database (Denmark)

    Vlachogiannis, Ioannis (John)

    2009-01-01

    A new formulation and solution of probabilistic constrained load flow (PCLF) problem suitable for modern power systems with wind power generation and electric vehicles (EV) demand or supply is represented. The developed stochastic model of EV demand/supply and the wind power generation model...... is applied to a new introduced 14-busbar test system which comprises two wind turbine (WT) generators, one small power plant, and two EV-plug-in stations connected at two PQ buses. The results demonstrate the excellent performance of the HLAS for PCLF problem. New formulae to facilitate the optimal...... are incorporated into load flow studies. In the resulted PCLF formulation, discrete and continuous control parameters are engaged. Therefore, a hybrid learning automata system (HLAS) is developed to find the optimal offline control settings over a whole planning period of power system. The process of HLAS...

  20. EIRP Characterization of Electrically Large Wireless Equipment with Integrated Signal Generator in a Compact Environment

    Directory of Open Access Journals (Sweden)

    Soon-Soo Oh

    2015-01-01

    Full Text Available We describe a measurement technique to characterize the equivalent isotropically radiated power (EIRP of electrically large wireless equipment in a compact environment. A modified phase-measurement method was proposed and, thus, the separation of the signal generator and radiating element was not required during the measurement. A Fresnel-to-far-field transformation was used for the fast measurement time in a compact anechoic chamber. An experimental verification of the method was carried out in a compact anechoic chamber, where the source-detector separation was approximately 1/5 of the far-field distance. The measured magnitude and phase pattern exhibited only a small error. The EIRP obtained using a Fresnel-to-far-field transformation was compared with a reference value, and the error was within 0.5 dB.

  1. Review of Real-time Electricity Markets for Integrating Distributed Energy Resources and Demand Response

    DEFF Research Database (Denmark)

    Wang, Qi; Zhang, Chunyu; Ding, Yi

    2015-01-01

    The high penetration of both Distributed Energy Resources (DER) and Demand Response (DR) in modern power systems requires a sequence of advanced strategies and technologies for maintaining system reliability and flexibility. Real-time electricity markets (RTM) are the nondiscriminatory transaction...... platforms for providing necessary balancing services, where the market clearing (nodal or zonal prices depending on markets) is very close to real time operations of power systems. One of the primary functions of RTMs in modern power systems is establishing an efficient and effective mechanism for small DER...... and DR to participate in balancing market transactions, while handling their meteorological or intermittent characteristics, facilitating asset utilization, and stimulating their active responses. Consequently, RTMs are dedicated to maintaining the flexibility and reliability of power systems. This paper...

  2. Electrical integration of renewable energy into stand-alone power supplies incorporating hydrogen storage

    Energy Technology Data Exchange (ETDEWEB)

    Little, Matthew; Thomson, Murray

    2007-07-15

    A stand-alone renewable-energy system employing a hydrogen-based energy store is now being commissioned within the HaRI project at West Beacon Farm, Leicestershire, UK. The interconnection of the various generators, loads and storage system is made through a central DC busbar: an arrangement that is believed to be unique within systems of this type and scale. The rotating generators, such as the wind turbines, are connected through standard industrial drives operating in regenerative mode, while the DC devices - electrolyser, fuel cell and solar photovoltaic array - employ custom DC-DC converters. This paper reviews the design philosophy of the electrical system and the various converters required. Modelling and simulation of the system is discussed along with practical lessons learnt from its implementation and some initial results are presented. (author)

  3. Global Integrated Flood Map: A collaborative product of the Global Flood Working Group

    OpenAIRE

    DE GROEVE Tom; VERNACCINI Luca; BRAKENRIDGE G. Robert; Adler, Robert; RICKO Martina; Wu, Huan; THIELEN DEL POZO Jutta; Salamon, Peter; POLICELLI Frederick; SLAYBACK Daniel; Albanese, Adriana; CRISTOFORI Elena; KULIGOWSKI Robert; KUSSELSON Sheldon

    2013-01-01

    The Integrated Global Flood Map is a demonstration of the power of combining existing systems to create added value. With increasing observation and modelling capacity, scientists are now able to produce relevant information on flood disasters more rapidly and with sufficient accuracy and precision for a variety of humanitarian response tasks. A number of prototype or pre-operational systems were integrated, each with their own shortcoming and uncertainties, but also with their strengths and ...

  4. Cost-Benefit Analysis for Investment Decisions: Chapter 19 (An Integrated Appraisal of Combined Cycle Versus Single Cycle Electricity Generations Technologies)

    OpenAIRE

    Glenn Jenkins; Chun-Yan Kuo; Arnold C. Harberger

    2011-01-01

    This study undertakes an integrated financial, economic and distributive appraisal of an Independent Power Producer (IPP) project to generate electricity. The critical issue is that the private sponsors of the IPP have proposed to build a single cycle electricity generation plant that is expected to start operating with an 80 percent load factor. A comparative analysis is undertaken a single cycle oil fuel plant to compared to a combined cycle oil fuel plant that would produce the same amount...

  5. Transient analysis of electromagnetic wave interactions on high-contrast scatterers using volume electric field integral equation

    KAUST Repository

    Sayed, Sadeed Bin

    2014-07-01

    A marching on-in-time (MOT)-based time domain volume electric field integral equation (TD-VEFIE) solver is proposed for accurate and stable analysis of electromagnetic wave interactions on high-contrast scatterers. The stability is achieved using band-limited but two-sided (non-causal) temporal interpolation functions and an extrapolation scheme to cast the time marching into a causal form. The extrapolation scheme is designed to be highly accurate for oscillating and exponentially decaying fields, hence it accurately captures the physical behavior of the resonant modes that are excited inside the dielectric scatterer. Numerical results demonstrate that the resulting MOT scheme maintains its stability as the number of resonant modes increases with the contrast of the scatterer.

  6. On the internal resonant modes in marching-on-in-time solution of the time domain electric field integral equation

    KAUST Repository

    Shi, Yifei

    2013-08-01

    Internal resonant modes are always observed in the marching-on-in-time (MOT) solution of the time domain electric field integral equation (EFIE), although \\'relaxed initial conditions,\\' which are enforced at the beginning of time marching, should in theory prevent these spurious modes from appearing. It has been conjectured that, numerical errors built up during time marching establish the necessary initial conditions and induce the internal resonant modes. However, this conjecture has never been proved by systematic numerical experiments. Our numerical results in this communication demonstrate that, the internal resonant modes\\' amplitudes are indeed dictated by the numerical errors. Additionally, it is shown that in a few cases, the internal resonant modes can be made \\'invisible\\' by significantly suppressing the numerical errors. These tests prove the conjecture that the internal resonant modes are induced by numerical errors when the time domain EFIE is solved by the MOT method. © 2013 IEEE.

  7. A system to integrate electrical stimulation with robotically controlled treadmill training to rehabilitate stepping after spinal cord injury.

    Science.gov (United States)

    Chao, Tekang; Askari, Sina; De Leon, Ray; Won, Deborah

    2012-09-01

    A functional electrical stimulation (FES) system was engineered to integrate information from a robotically controlled position during stepping in order to time stimulation to continuous gait information in a rodent model of spinal cord injury (SCI). In contrast to conventional FES systems which have a fixed timing pattern relative to gait cycle onset (i.e., toe off/heel off or paw contact/heel strike), this system allows adaptation of stimulation to a robotically controlled position. Rationale for the system design is presented along with bench-test results verifying the timing of the stimulation with respect to hindlimb position. This robotically timed FES system will enable studies investigating the capability of this FES therapy to encourage rehabilitation by way of spinal plasticity.

  8. An integrated gait rehabilitation training based on Functional Electrical Stimulation cycling and overground robotic exoskeleton in complete spinal cord injury patients: Preliminary results.

    Science.gov (United States)

    Mazzoleni, S; Battini, E; Rustici, A; Stampacchia, G

    2017-07-01

    The aim of this study is to investigate the effects of an integrated gait rehabilitation training based on Functional Electrical Stimulation (FES)-cycling and overground robotic exoskeleton in a group of seven complete spinal cord injury patients on spasticity and patient-robot interaction. They underwent a robot-assisted rehabilitation training based on two phases: n=20 sessions of FES-cycling followed by n= 20 sessions of robot-assisted gait training based on an overground robotic exoskeleton. The following clinical outcome measures were used: Modified Ashworth Scale (MAS), Numerical Rating Scale (NRS) on spasticity, Penn Spasm Frequency Scale (PSFS), Spinal Cord Independence Measure Scale (SCIM), NRS on pain and International Spinal Cord Injury Pain Data Set (ISCI). Clinical outcome measures were assessed before (T0) after (T1) the FES-cycling training and after (T2) the powered overground gait training. The ability to walk when using exoskeleton was assessed by means of 10 Meter Walk Test (10MWT), 6 Minute Walk Test (6MWT), Timed Up and Go test (TUG), standing time, walking time and number of steps. Statistically significant changes were found on the MAS score, NRS-spasticity, 6MWT, TUG, standing time and number of steps. The preliminary results of this study show that an integrated gait rehabilitation training based on FES-cycling and overground robotic exoskeleton in complete SCI patients can provide a significant reduction of spasticity and improvements in terms of patient-robot interaction.

  9. An Integrated Approach to Modeling Solar Electric Propulsion Vehicles During Long Duration, Near-Earth Orbit Transfers

    Science.gov (United States)

    Smith, David A.; Hojnicki, Jeffrey S.; Sjauw, Waldy K.

    2014-01-01

    Recent NASA interest in utilizing solar electronic propulsion (SEP) technology to transfer payloads, e.g. from low-Earth orbit (LEO) to higher energy geostationary-Earth orbit (GEO) or to Earth escape, has necessitated the development of high fidelity SEP vehicle models and simulations. These models and simulations need to be capable of capturing vehicle dynamics and sub-system interactions experienced during the transfer trajectories which are typically accomplished with continuous-burn (potentially interrupted by solar eclipse), long duration "spiral out" maneuvers taking several months or more to complete. This paper presents details of an integrated simulation approach achieved by combining a high fidelity vehicle simulation code with a detailed solar array model. The combined simulation tool gives researchers the functionality to study the integrated effects of various vehicle sub-systems (e.g. vehicle guidance, navigation and control (GN&C), electric propulsion system (EP)) with time varying power production. Results from a simulation model of a vehicle with a 50 kW class SEP system using the integrated tool are presented and compared to the results from another simulation model employing a 50 kW end-of-life (EOL) fixed power level assumption. These models simulate a vehicle under three degree of freedom dynamics (i.e. translational dynamics only) and include the effects of a targeting guidance algorithm (providing a "near optimal" transfer) during a LEO to near Earth escape (C (sub 3) = -2.0 km (sup 2) / sec (sup -2) spiral trajectory. The presented results include the impact of the fully integrated, time-varying solar array model (e.g. cumulative array degradation from traversing the Van Allen belts, impact of solar eclipses on the vehicle and the related temperature responses in the solar arrays due to operating in the Earth's thermal environment, high fidelity array power module, etc.); these are used to assess the impact on vehicle performance (i

  10. Feasibility Study of a Building-Integrated PV Manager to Power a Last-Mile Electric Vehicle Sharing System

    Directory of Open Access Journals (Sweden)

    Manuel Fuentes

    2017-01-01

    Full Text Available Transportation is one of the largest single sources of air pollution in urban areas. This paper analyzes a model of solar-powered vehicle sharing system using building-integrated photovoltaics (BIPV, resulting in a zero-emission and zero-energy mobility system for last-mile employee transportation. As a case study, an electric bicycle sharing system between a public transportation hub and a work center is modeled mathematically and optimized in order to minimize the number of pickup trips to satisfy the demand, while minimizing the total energy consumption of the system. The whole mobility system is fully powered with BIPV-generated energy. Results show a positive energy balance in e-bike batteries and pickup vehicle batteries in the worst day of the year regarding solar radiation. Even in this worst-case scenario, we achieve reuse rates of 3.8 people per bike, using actual data. The proposed system manages PV energy using only the batteries from the electric vehicles, without requiring supportive energy storage devices. Energy requirements and PV generation have been analyzed in detail to ensure the feasibility of this approach.

  11. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 4, Appendixes B-D

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-01

    The Salt Lake City Area Office of the Western Area Power Administration (Western) markets electricity produced at hydroelectric facilities operated by the Bureau of Reclamation. The facilities are known collectively as the Salt Lake City Area Integrated Projects (SLCA/IP) and include dams equipped for power generation on the Green, Gunnison, Rio Grande, and Colorado rivers and on Deer and Plateau creeks in the states of Wyoming, Utah, Colorado, Arizona, and New Mexico. Of these facilities, only the Glen Canyon Unit, the Flaming Gorge Unit, and the Aspinall Unit (which includes Blue Mesa, Morrow Point, and Crystal dams;) are influenced by Western power scheduling and transmission decisions. The EIS alternatives, called commitment-level alternatives, reflect combinations of capacity and energy that would feasibly and reasonably fulfill Westerns firm power marketing responsibilities, needs, and statutory obligations. The viability of these alternatives relates directly to the combination of generation capability of the SLCA/IP with energy purchases and interchange. The economic and natural resource assessments in this environmental impact statement (EIS) include an analysis of commitment-level alternatives. Impacts of the no-action alternative are also assessed. Supply options, which include combinations of electrical power purchases and hydropower operational scenarios reflecting different operations of the dams, are also assessed. The EIS evaluates the impacts of these scenarios relative to socioeconomics, air resources, water resources, ecological resources, cultural resources, land use, recreation, and visual resources.

  12. Process-based modelling of regional water demand for electricity, industry and municipal sectors in Integrated Assessment Models.

    Science.gov (United States)

    Bijl, David L.; Bogaart, Patrick W.; Kram, Tom; De Vries, Bert J. M.; Van Vuuren, Detlef P.

    2014-05-01

    Integrated Assessment Models (IAMs) are a prime tool for studying global scale interactions between the human and natural earth systems. Our research contributes to this field by modelling water, food and energy demand as outcomes of more physical processes and by adding links between them. As part of this ambition, we here describe a model for water demand in the electricity generation, industrial and municipal sectors, going beyond previous modelling efforts. For instance, by coupling water demand to energy inputs, the model directly couples water efficiency to fuel efficiency of power plants. We present electricity, industry and municipal water demand models and develop water demand projections for the new Shared Socio-economic Pathways (SSPs) and Representative Concentration Pathways (RCPs) for climate research. Our regional-level demand models contribute to understanding the extent of crossing planetary boundaries and the scope for solutions such as virtual water trade or efficiency improvements. We also discuss how we plan to link demand and supply models, and how the usefulness for policy makers can be increased.

  13. Fullerene-Containing Electrically Conducting Electron Beam Resist for Ultrahigh Integration of Nanometer Lateral-Scale Organic Electronic Devices.

    Science.gov (United States)

    Nakajima, Anri; Tabei, Tetsuo; Yasukawa, Tatsuya

    2017-06-27

    An outstanding issue with organic devices is the difficulty of simultaneously controlling the lateral size and position of structures at submicron or nanometer scales. In this study, nanocomposite electron beam (EB) organic resists are proved to be excellent candidates for electrically conductive and/or memory component materials for submicron or nanometer lateral-scale organic electronic devices. The memory and the resist patterning characteristics are investigated for a positive electron beam resist of ZEP520a containing [6,6]-phenyl-C61 butyric acid methyl ester (PCBM). Regarding the memory characteristics, good programming and excellent retention characteristics are obtained for electrons. The carrier transfer and retention mechanisms are also investigated. Regarding the resist patterning characteristics, it is found that line patterns (square patterns) of ZEP520a containing PCBM can be made with widths (side lengths) of less than 200 nm by using an extremely simple process with only EB exposures and developments. The distribution of PCBM molecules or their aggregations is also clarified in ZEP520a containing PCBM. The results of this study open the door to the simple fabrication of highly integrated flexible memories and electrical wires as well as of single-electron or quantum devices, including quantum information devices and sensitive biosensors for multiplexed and simultaneous diagnoses.

  14. Some Problems of the Integration of Heat Pump Technology into a System of Combined Heat and Electricity Production

    Directory of Open Access Journals (Sweden)

    G. Böszörményi

    2001-01-01

    Full Text Available The closure of a part of the municipal combined heat and power (CHP plant of Košice city would result in the loss of 200 MW thermal output within a realtively short period of time. The long term development plan for the Košice district heating system concentrates on solving this problem. Taking into account the extremely high (90 % dependence of Slovakia on imported energy sources and the desirability of reducing the emission of pollutantst the alternative of supplying of 100 MW thermal output from geothermal sources is attractive. However the indices of economic efficiency for this alternative are unsatisfactory. Cogeneration of electricity and heat in a CHP plant, the most efficient way of supplying heat to Košice at the present time. If as planned, geothermal heat is fed directly into the district heating network the efficiency would be greatly reduced. An excellent solution of this problem would be a new conception, preferring the utilization of geothermal heat in support of a combined electricity and heat production process. The efficiency of geothermal energy utilization could be increased through a special heat pump. This paper deals with several aspects of the design of a heat pump to be integrated into the system of the CHP plant.

  15. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 3, Appendix A

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-01

    The Salt Lake City Area Office of the Western Area Power Administration (Western) markets electricity produced at hydroelectric facilities operated by the Bureau of Reclamation. The facilities are known collectively as the Salt Lake City Area Integrated Projects (SLCA/IP) and include dams equipped for power generation on the Green, Gunnison, Rio Grande, and Colorado rivers and on Deer and Plateau creeks in the states of Wyoming, Utah, Colorado, Arizona, and New Mexico. Of these facilities, only the Glen Canyon Unit, the Flaming Gorge Unit, and the Aspinall Unit (which includes Blue Mesa, Morrow Point, and Crystal dams;) are influenced by Western power scheduling and transmission decisions. The EIS alternatives, called commitment-level alternatives, reflect combinations of capacity and energy that would feasibly and reasonably fulfill Westerns firm power marketing responsibilities, needs, and statutory obligations. The viability of these alternatives relates directly to the combination of generation capability of the SLCA/IP with energy purchases and interchange. The economic and natural resource assessments in this environmental impact statement (EIS) include an analysis of commitment-level alternatives. Impacts of the no-action alternative are also assessed. Supply options, which include combinations of electrical power purchases and hydropower operational scenarios reflecting different operations of the dams, are also assessed. The EIS evaluates the impacts of these scenarios relative to socioeconomics, air resources, water resources, ecological resources, cultural resources, land use, recreation, and visual resources.

  16. Salt Lake City Area Integrated Projects Electric Power Marketing. Draft environmental impact statement: Volume 2, Sections 1-16

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-01

    The Salt Lake City Area Office of the Western Area Power Administration (Western) markets electricity produced at hydroelectric facilities operated by the Bureau of Reclamation. The facilities are known collectively as the Salt Lake City Area Integrated Projects (SLCA/IP) and include dams equipped for power generation on the Green, Gunnison, Rio Grande, and Colorado rivers and on Deer and Plateau creeks in the states of Wyoming, Utah, Colorado, Arizona, and New Mexico. Of these facilities, only the Glen Canyon Unit, the Flaming Gorge Unit, and the Aspinall Unit (which includes Blue Mesa, Morrow Point, and Crystal dams;) are influenced by Western power scheduling and transmission decisions. The EIS alternatives, called commitment-level alternatives, reflect combinations of capacity and energy that would feasibly and reasonably fulfill Westerns firm power marketing responsibilities, needs, and statutory obligations. The viability of these alternatives relates directly to the combination of generation capability of the SLCA/IP with energy purchases and interchange. The economic and natural resource assessments in this environmental impact statement (EIS) include an analysis of commitment-level alternatives. Impacts of the no-action alternative are also assessed. Supply options, which include combinations of electrical power purchases and hydropower operational scenarios reflecting different operations of the dams, are also assessed. The EIS evaluates the impacts of these scenarios relative to socioeconomics, air resources, water resources, ecological resources, cultural resources, land use, recreation, and visual resources.

  17. A good integrated resource plan: Guidelines for electric utilities and regulators

    Energy Technology Data Exchange (ETDEWEB)

    Hirst, E.

    1992-12-01

    Integrated resource planning helps utilities and state regulatory commissions consistently assess a broad range of demand and supply resources to meet customer energy-service needs cost-effectively. Key characteristics of this planning approach include: explicit consideration and fair treatment of a wide variety of demand and supply options, consideration of the environmental and other social costs of providing energy services, public participation in the development of the resource plan, and analysis of the uncertainties associated with different external factors and resource options. Integrated resource planning differs from traditional planning in the types and scope of resources considered, the owners of the resources, the organizations involved in resource planning, and the criteria for resource selection. This report presents suggestions to utilities on how to conduct such planning and what to include in their resource-planning reports. These suggestions are based on a review of about 50 resource plans as well as discussions with and presentations to regulators and utilities. The suggestions cover four broad topics; the technical competence with which the plan was developed; the adequacy, detail, and consistency (with the long-term plan) of the short-term action plan; the extent to which the interests of various stakeholders was considered, both in public participation in plan development and in the variety of resource plans developedand assessed; and the clarity and comprehensiveness of the utility`s report on its plan. Technical competence includes energy and demand forecasts, assessment of supply and demand resources, resource integration, and treatment of uncertainty. Issues associated with forecasts include forecasting approaches; links between the forecasts of energy use and peak demands; and links between the forecasts and the effects of past, present, and future demand-side management programs.

  18. A good integrated resource plan: Guidelines for electric utilities and regulators

    Energy Technology Data Exchange (ETDEWEB)

    Hirst, E.

    1992-12-01

    Integrated resource planning helps utilities and state regulatory commissions consistently assess a broad range of demand and supply resources to meet customer energy-service needs cost-effectively. Key characteristics of this planning approach include: explicit consideration and fair treatment of a wide variety of demand and supply options, consideration of the environmental and other social costs of providing energy services, public participation in the development of the resource plan, and analysis of the uncertainties associated with different external factors and resource options. Integrated resource planning differs from traditional planning in the types and scope of resources considered, the owners of the resources, the organizations involved in resource planning, and the criteria for resource selection. This report presents suggestions to utilities on how to conduct such planning and what to include in their resource-planning reports. These suggestions are based on a review of about 50 resource plans as well as discussions with and presentations to regulators and utilities. The suggestions cover four broad topics; the technical competence with which the plan was developed; the adequacy, detail, and consistency (with the long-term plan) of the short-term action plan; the extent to which the interests of various stakeholders was considered, both in public participation in plan development and in the variety of resource plans developedand assessed; and the clarity and comprehensiveness of the utility's report on its plan. Technical competence includes energy and demand forecasts, assessment of supply and demand resources, resource integration, and treatment of uncertainty. Issues associated with forecasts include forecasting approaches; links between the forecasts of energy use and peak demands; and links between the forecasts and the effects of past, present, and future demand-side management programs.

  19. The integrable quantum group invariant A2n−1(2 and Dn+1(2 open spin chains

    Directory of Open Access Journals (Sweden)

    Rafael I. Nepomechie

    2017-11-01

    Full Text Available A family of A2n(2 integrable open spin chains with Uq(Cn symmetry was recently identified in arXiv:1702.01482. We identify here in a similar way a family of A2n−1(2 integrable open spin chains with Uq(Dn symmetry, and two families of Dn+1(2 integrable open spin chains with Uq(Bn symmetry. We discuss the consequences of these symmetries for the degeneracies and multiplicities of the spectrum. We propose Bethe ansatz solutions for two of these models, whose completeness we check numerically for small values of n and chain length N. We find formulas for the Dynkin labels in terms of the numbers of Bethe roots of each type, which are useful for determining the corresponding degeneracies. In an appendix, we briefly consider Dn+1(2 chains with other integrable boundary conditions, which do not have quantum group symmetry.

  20. Influence of plug-in hybrid electric vehicles on smart grids; Management der Trendwatching Group. Einfluss von Plug-In Hybrid Vehicles auf intelligente Verteilnetze (Smart Grids) - Schlussbericht

    Energy Technology Data Exchange (ETDEWEB)

    Horbaty, R. [ENCO Energie Consulting AG, Bubendorf (Switzerland); Strub, P. [Pierre Strub, Basel (Switzerland)

    2008-12-15

    This final report for the Swiss Federal Office of Energy (SFOE) takes a look at the influence of plug-in hybrid vehicles on intelligent electricity distribution grids. The work of a trend-watching group which examined the regulatory services at the interface between such 'smart' grids and electrically powered vehicles is reported on. The trend-watching group includes research institutes, energy suppliers, NGOs, the automobile industry and technology companies. Vehicle-to-grid concepts and innovative developments in the Swiss market are commented on and the group's own activities (research, business models, technological development and politics) are discussed. The group will accompany relevant research programs and the implementation of measures as well as accompanying feasibility evaluations concerning current market developments. The Swiss federal strategy is to be discussed and international co-operation (with the IEA) is to be further strengthened.

  1. About the Use of the HdHr Algorithm Group in Integrating the Movement Equation with Nonlinear Terms

    Directory of Open Access Journals (Sweden)

    Heitor Miranda Bottura

    2009-01-01

    Full Text Available This work summarizes the HdHr group of Hermitian integration algorithms for dynamic structural analysis applications. It proposes a procedure for their use when nonlinear terms are present in the equilibrium equation. The simple pendulum problem is solved as a first example and the numerical results are discussed. Directions to be pursued in future research are also mentioned.

  2. 77 FR 42313 - Recharter of the Advisory Group on Prevention, Health Promotion, and Integrative and Public Health

    Science.gov (United States)

    2012-07-18

    ... Public Health AGENCY: Office of the Assistant Secretary for Health, Office of the Secretary, Department... Public Health. FOR FURTHER INFORMATION CONTACT: Corinne Graffunder, Designated Federal Officer (DFO) of... the President establish the Advisory Group on Prevention, Health Promotion, and Integrative and Public...

  3. Integration of electromobiles into the electricity network and its impact on the energy supply; Netzintegration von Elektrofahrzeugen und deren Auswirkungen auf die Energieversorgung

    Energy Technology Data Exchange (ETDEWEB)

    Linssen, Jochen [Forschungszentrum Juelich GmbH (Germany). Inst. fuer Energie- und Klimaforschung (IEF), Systemforschung und Technologische Entwicklung (IEF-STE); Danzer, Michael [Zentrum fuer Sonnenenergie- und Wasserstoff-Forschung, Baden-Wuerttemberg, Ulm (Germany). Fachgebiet Elektrochemische Akkumulatoren; Marker, Stefanie [Technische Univ. Berlin (Germany). Fachgebiet Kraftfahrzeuge (KFZ); Maas, Heiko [Ford Forschungszentrum Aachen GmbH (FFA), Aachen (Germany); Strunz, Kai [Technische Univ. Berlin (Germany). Fachgebiet Sustainable Electric Networks and Sources of Energy (SENSE); Weinmann, Oliver [Vattenfall Europe Innovation GmbH, Hamburg (Germany)

    2013-01-15

    Electrically powered vehicles are currently seen as a promising option in sparing resources, improving security of supply, gaining local freedom from emissions, increasing energy efficiency and reducing greenhouse gas emissions from road traffic. Due to the energy turnaround this trend is now paralleled by an increase in the share of renewable energy in the electricity supply and hence in fluctuations in energy production. This has led to greater demands being placed on the design of electricity networks as well as on power plant deployment planning. New concepts for the integration of energy from fluctuating sources, including the use of storage facilities, are also becoming attractive as a result.

  4. The integration of environmental externalisation into electricity systems: the Spanish application; Internalizacion de externalidades medioambientales en sistemas electricos: Una aplicacion para Espana

    Energy Technology Data Exchange (ETDEWEB)

    Linares, P.; Munoz, L.; Ramos, A.; Montes, J.

    2007-07-01

    This paper analyzes the methods and difficulties for the integration of environmental externalisation into electricity systems decision-making processes. As a case study, it assesses the consequences of the internalization of externalisation into the Spanish power system. To that end, a model has been developed which is capable of incorporating these externalities, and which therefore allows for the determination of a socially efficient electricity system operation. The results show that, if externalities are internalised, the electricity system operation may be altered significantly, even when only part of the externalities are taken into account. (Author)

  5. Study of rational energy consumption in electric appliances. An integrated approach; Estudio de racionalizacion del consumo energetico en electrodomesticos. Un enfoque integrador

    Energy Technology Data Exchange (ETDEWEB)

    Massa, Pablo A.; Romero Tirado, Rene R. [La Plata Univ. Nacional (Argentina). Facultad de Ingenieria. Dept. de Electrotecnia

    1997-12-31

    This work presents a global and integrated approach about rational energy consumption concerning the use of electric appliances based on studies carried out in this investigation and information obtained through a joint action of government agents and electric power manufacturers, producers and distributors. It also presents a program named `procaeh`(home electric appliances quality program) in the scope of the communications and energy bureau and energy rational use (URE) management 8 refs., 2 figs., 7 tabs.; e-mail: massa at isis.unlp.edu.ar

  6. A multichannel integrated circuit for electrical recording of neural activity, with independent channel programmability.

    Science.gov (United States)

    Mora Lopez, Carolina; Prodanov, Dimiter; Braeken, Dries; Gligorijevic, Ivan; Eberle, Wolfgang; Bartic, Carmen; Puers, Robert; Gielen, Georges

    2012-04-01

    Since a few decades, micro-fabricated neural probes are being used, together with microelectronic interfaces, to get more insight in the activity of neuronal networks. The need for higher temporal and spatial recording resolutions imposes new challenges on the design of integrated neural interfaces with respect to power consumption, data handling and versatility. In this paper, we present an integrated acquisition system for in vitro and in vivo recording of neural activity. The ASIC consists of 16 low-noise, fully-differential input channels with independent programmability of its amplification (from 100 to 6000 V/V) and filtering (1-6000 Hz range) capabilities. Each channel is AC-coupled and implements a fourth-order band-pass filter in order to steeply attenuate out-of-band noise and DC input offsets. The system achieves an input-referred noise density of 37 nV/√Hz, a NEF of 5.1, a CMRR > 60 dB, a THD noise ratios.

  7. Integration of Thermoelectric Generators and Wood Stove to Produce Heat, Hot Water, and Electrical Power

    DEFF Research Database (Denmark)

    Goudarzi, A.M.; Mazandarani, P.; Panahi, R.

    2013-01-01

    Traditional fire stoves are characterized by low efficiency. In this experimental study, the combustion chamber of the stove is developed by two devices. An electric fan can increase the air to fuel ratio in order to increase the system’s efficiency and to decrease the air pollution by providing...... a complete combustion for wood. In addition, thermoelectric generators (TEG) produce power that can be used to satisfy all basic needs. In this study, a water-base cooling system is designed to increase the efficiency of TE generators that also produces hot water for residential uses. Through a range...... of tests, an average of 7.9 W was achieved by a commercial TEG with the substrate area of 56 mm ×56 mm, which can produce 14.7 W output power at the maximum match load. The total power generated by the stove is 166 W. Also, in this study a reasonable ratio of fuel to time is described for a residential use...

  8. Integrating DNA barcodes and morphology for species delimitation in the Corynoneura group (Diptera: Chironomidae: Orthocladiinae).

    Science.gov (United States)

    Silva, F L; Wiedenbrug, S

    2014-02-01

    In this study, we use DNA barcodes for species delimitation to solve taxonomic conflicts in 86 specimens of 14 species belonging to the Corynoneura group (Diptera: Chironomidae: Orthocladiinae), from the Atlantic Forest, Brazil. Molecular analysis of cytochrome c-oxidase subunit I (COI) gene sequences supported 14 cohesive species groups, of which two similar groups were subsequently associated with morphological variation at the pupal stage. Eleven species previously described based on morphological criteria were linked to DNA markers. Furthermore, there is the possibility that there may be cryptic species within the Corynoneura group, since one group of species presented internal grouping, although no morphological divergence was observed. Our results support DNA-barcoding as an excellent tool for species delimitation in groups where taxonomy by means of morphology is difficult or even impossible.

  9. Costs and Operating Dynamics of Integrating Distributed Energy Resources in Commercial and Industrial Buildings with Electric Vehicle Charging

    Science.gov (United States)

    Flores, Robert Joseph

    Growing concerns over greenhouse gas and pollutant emissions have increased the pressure to shift energy conversion paradigms from current forms to more sustainable methods, such as through the use of distributed energy resources (DER) at industrial and commercial buildings. This dissertation is concerned with the optimal design and dispatch of a DER system installed at an industrial or commercial building. An optimization model that accurately captures typical utility costs and the physical constraints of a combined cooling, heating, and power (CCHP) system is designed to size and operate a DER system at a building. The optimization model is then used with cooperative game theory to evaluate the financial performance of a CCHP investment. The CCHP model is then modified to include energy storage, solar powered generators, alternative fuel sources, carbon emission limits, and building interactions with public and fleet PEVs. Then, a separate plugin electric vehicle (PEV) refueling model is developed to determine the cost to operate a public Level 3 fast charging station. The CCHP design and dispatch results show the size of the building load and consistency of the thermal loads are critical to positive financial performance. While using the CCHP system to produce cooling can provide savings, heat production drives positive financial performance. When designing the DER system to reduce carbon emissions, the use of renewable fuels can allow for a gas turbine system with heat recovery to reduce carbon emissions for a large university by 67%. Further reductions require large photovoltaic installations coupled with energy storage or the ability to export electricity back to the grid if costs are to remain relatively low. When considering Level 3 fast charging equipment, demand charges at low PEV travel levels are sufficiently high to discourage adoption. Integration of the equipment can reduce demand charge costs only if the building maximum demand does not coincide

  10. Electrical stimulation superimposed on voluntary training can limit sensory integration in neural adaptations.

    Science.gov (United States)

    Paillard, Thierry

    2012-01-01

    P. Bezerra, S. Zhou, Z. Crowley, A. Davie, and R. Baglin (2011) suggested that the neural mechanisms responsible for steadiness improvement relate in particular to the discharge behavior of motor units and the practice and learning of skills rather than the strength gain after electromyostimulation superimposed over voluntary training. However, the afferent inputs are determining in control of the force level produced and thus contribute to ensure muscle steadiness. Hence, it is possible that electromyostimulation interferes in neurophysiological afference integration and prevents neural adaptations that enable improvement of the control of force (and then muscle steadiness) to occur. Therefore, the neural adaptations induced by electromyostimulation superimposed onto voluntary training should also be researched in relation to the sensory pathways.

  11. Integrating massiv wind power in the electric system. Acciona experience in Spain

    Energy Technology Data Exchange (ETDEWEB)

    Giraut Ruso, E.; Ruiz Guillen, J.; Quinonez-Varela, G.; Armendariz Otazu, I.; Navarrete Pablo-Romero, A.; Moreira Prada, C.; Alday Aracama, G.; Sanchez Ardoiz, R.; Moreno Fernandez, J. [Acciona Energia, Sarriguren (Spain)

    2009-07-01

    In this paper, the existing operational procedures applicable to wind and renewable generation in Spain are presented. These include remote control of renewable generators and their interaction with the TSO's Control Centre: energy production forecast and market integration, and voltage and reactive power control. Acciona Energia, as one of the largest operator and owner of renewable assets in Spain (particularly wind power plants), hat been a major player in the implementation of measures to comply with these procedures. For instance, it has worked closely with the TSO and the wind sector to help formulating Grid Code requirements, it has designed new wind turbine technologies to fulfil them and it has deployed innovative solutions to adapt older wind generators and plants to new standards (retrofitting). Acciona's experiences and technical solutions to these challenges are thoroughly discussed. (orig.)

  12. Charge Yield at Low Electric Fields: Considerations for Bipolar Integrated Circuits

    Science.gov (United States)

    Johnston, A. H.; Swimm, R. T.; Thorbourn, D. O.

    2013-01-01

    A significant reduction in total dose damage is observed when bipolar integrated circuits are irradiated at low temperature. This can be partially explained by the Onsager theory of recombination, which predicts a strong temperature dependence for charge yield under low-field conditions. Reduced damage occurs for biased as well as unbiased devices because the weak fringing field in thick bipolar oxides only affects charge yield near the Si/SiO2 interface, a relatively small fraction of the total oxide thickness. Lowering the temperature of bipolar ICs - either continuously, or for time periods when they are exposed to high radiation levels - provides an additional degree of freedom to improve total dose performance of bipolar circuits, particularly in space applications.

  13. Means to estimate the influence of user variables on a smart integration of electric vehicles into the future energy grid; Methoden zur Bestimmung des Nutzereinflusses auf eine intelligente Integration von Elektrofahrzeugen in das zukuenftige Energienetz

    Energy Technology Data Exchange (ETDEWEB)

    Hahnel, Ulf J.J. [Fraunhofer-Institut fuer Solare Energiesysteme (ISE), Freiburg im Breisgau (Germany); Freiburg Univ. (Germany). Inst. fuer Psychologie; Benoit, Pascal; Goelz, Sebastian; Kohrs, Robert [Fraunhofer-Institut fuer Solare Energiesysteme (ISE), Freiburg im Breisgau (Germany); Spada, Hans [Freiburg Univ. (Germany). Inst. fuer Psychologie

    2012-07-01

    A smart integration of electric vehicles into the future energy grid guarantees for matching energy demand and supply. To sufficiently integrate electric vehicles into the energy grid, it is necessary to maximize the vehicles' availability for intelligent charging processes. However, the availability highly depends on the motivation and skills of their users. Future drivers have to decide whether they want to initiate direct or intelligent charging processes. In case of intelligent charging processes, the systems require information about upcoming departure times and trip lengths. Inaccurate user predictions may reduce vehicles' availability for intelligent charging processes or may lead to insufficient battery levels. In the present paper, we investigate the influence of user variables on electric vehicles' availability for smart integration. We use data from psychological research that allows for comparing mobility predictions with actual mobility. We further technologically interpret data and display means to account for user variables in future charging scenarios. (orig.)

  14. The Role of Adolescent Friendship Group Integration and Cohesion in Weapon-Related Violent Crime as a Young Adult.

    Science.gov (United States)

    Mundt, Marlon P; Antonaccio, Olena P; French, Michael T; Zakletskaia, Larissa I

    2017-08-01

    Weapon-related violent crime is a serious, complex, and multifaceted public health problem. The present study uses data from Waves I and III of Add Health (n = 10,482, 54% female) to examine how friendship group integration and cohesion in adolescence (ages 12-19) is associated with weapon-related criminal activity as a young adult (ages 18-26). Results indicate that greater cohesion in friendship groups is associated with significantly lower weapon-related criminal activity in young adulthood. In addition, for adolescent girls, a greater number of close friendship ties-an indicator of friendship group integration-is associated with less weapon-related criminal activity in young adulthood. These findings suggest that school-based initiatives to facilitate inclusive and cohesive adolescent peer communities may be an effective strategy to curb weapon-related criminal activity in young adulthood.

  15. Evaluation of the Effect of Operating Parameters on Thermal Performance of an Integrated Starter Generator in Hybrid Electric Vehicles

    Directory of Open Access Journals (Sweden)

    Moo-Yeon Lee

    2015-08-01

    Full Text Available The belt-driven-type integrated starter generator motor in a hybrid electric vehicle is vulnerable to thermal problems owing to its high output power and proximity to the engine. These problems may cause demagnetization and insulation breakdown, reducing the performance and durability of the motor. Hence, it is necessary to evaluate the thermal performance and enhance the cooling capacity of the belt-driven type Integrated Starter Generator. In this study, the internal temperature variations of the motor were investigated with respect to the operating parameters, particularly the rotation speed and environment temperature. At a maximum ambient temperature of 105 °C and rotation speed (motor design point of 4500 rpm, the coil of the motor was heated to approximately 189 °C in generating mode. The harsh conditions of the starting mode were analyzed by assuming that the motor operates during the start-up time at a maximum ambient temperature of 105 °C and rotation speed (motor design point of 800 rpm; the coil was heated to approximately 200 °C, which is close to the insulation temperature limit. The model for analyzing the thermal performance of the ISG was verified by comparing its results with those obtained through a generating-mode-based experiment

  16. Development of an Integrated Virtual Group Training System for COPD Patients

    NARCIS (Netherlands)

    Dikken, J.B.J.; van Beijnum, Bernhard J.F.; Hofs, D.H.W.; Botman, Mike P.L.; Vollenbroek-Hutten, Miriam Marie Rosé; Hermens, Hermanus J.

    2014-01-01

    COPD patients experience a downward spiral of fear for breathlessness, inactivity and social isolation which leads to a bad physical condition. Motivation to keep patients compliant to their training scheme is a key factor in home-based exercise training. This paper presents the Integrated Training

  17. Treatment Integrity of Elaborated Semantic Feature Analysis Aphasia Therapy Delivered in Individual and Group Settings

    Science.gov (United States)

    Kladouchou, Vasiliki; Papathanasiou, Ilias; Efstratiadou, Eva A.; Christaki, Vasiliki; Hilari, Katerina

    2017-01-01

    Background & Aims: This study ran within the framework of the Thales Aphasia Project that investigated the efficacy of elaborated semantic feature analysis (ESFA). We evaluated the treatment integrity (TI) of ESFA, i.e., the degree to which therapists implemented treatment as intended by the treatment protocol, in two different formats:…

  18. Building a taxonomy of integrated palliative care initiatives: Results from a focus group

    NARCIS (Netherlands)

    B. Ewert (Benjamin); F. Hodiamont (Farina); J.D.H. van Wijngaarden (Jeroen); S. Payne (Sheila); M. Groot (Marieke); J. Hasselaar (Jeroen); J. Menten (Johann); L. Radbruch (Lukas)

    2016-01-01

    textabstractBackground Empirical evidence suggests that integrated palliative care (IPC) increases the quality of care for palliative patients and supports professional caregivers. Existing IPC initiatives in Europe vary in their design and are hardly comparable. InSuP-C, a European Union research

  19. Building a taxonomy of integrated palliative care initiatives: results from a focus group

    NARCIS (Netherlands)

    Ewert, B.; Hodiamont, F.; Wijngaarden, J. van; Payne, S.; Groot, M.; Hasselaar, J.G.J.; Menten, J.; Radbruch, L.

    2016-01-01

    BACKGROUND: Empirical evidence suggests that integrated palliative care (IPC) increases the quality of care for palliative patients and supports professional caregivers. Existing IPC initiatives in Europe vary in their design and are hardly comparable. InSuP-C, a European Union research project,

  20. Integrating Biological Motion: The Role of Grouping in the Perception of Point-Light Actions

    National Research Council Canada - National Science Library

    Poljac, E; Verfaillie, K; Wagemans, J

    2011-01-01

    .... In particular, we studied whether biological motion perception is facilitated when the elements can be grouped according to good continuation and similarity as Gestalt principles of perceptual organization...

  1. E pluribus unum: using group model building with many interdependent organizations to create integrated health-care networks.

    Science.gov (United States)

    Pieters, Angèle; Akkermans, Henk; Franx, Arie

    2011-01-01

    This chapter reports on an action research case study of integrated obstetric care in the Netherlands. Efficient and patient-friendly patient flows through integrated care networks are of major societal importance. How to design and develop such interorganizational patient flows is still a nascent research area, especially when dealing with a large number (n>3) of stakeholders. We have shown that a modification of an existing method to support interorganizational collaboration by system dynamics-based group model building (GMB) (the Renga method, Akkermans, 2001) may be effective in achieving such collaboration.

  2. Multimode Analysis of the Dynamics and Integrity of Electrically Actuated MEMS Resonators

    Directory of Open Access Journals (Sweden)

    Serge Bruno Yamgoué

    2014-01-01

    technique to reduce the partial integro-differential equation governing the dynamics of the microbeam to a system of coupled ordinary differential equations which describe the interactions of the linear mode shapes of the microbeam. Analytical solutions are derived and their stability is studied for the simplest reduced-order model which takes into account only the first linear mode in the Galerkin procedure. We further investigate the influence of the first few higher modes on the Galerkin procedure, and hence its convergence, by analysing the boundaries between pull-in and pull-in-free vibrations domains in the space of actuation parameters. These are determined for the various multimode combinations using direct numerical time integration. Our results show that unsafe domains form V-like shapes for actuation frequencies close to the superharmonic, fundamental, and subharmonic resonances. They also reveal that the single first-mode reduced model usually considered underestimates the left branches and overestimates the right branches of these boundaries.

  3. Integrating the Beliefs of Dewey, Lewin, and Rogers into a Rationale for Effective Group Leadership.

    Science.gov (United States)

    Grove, Richard W.

    1992-01-01

    Presents a rationale for effective group leadership grounded in John Withall's articulation of selected beliefs of John Dewey, Kurt Lewin, and Carl Rogers. Teachers and administrators need more and better preparation in collaborative inquiry. Knowledge and skills in collaborative inquiry should undergird the successful functioning of groups of…

  4. The Process Model of Group-Based Emotion : Integrating Intergroup Emotion and Emotion Regulation Perspectives

    NARCIS (Netherlands)

    Goldenberg, Amit; Halperin, Eran; van Zomeren, Martijn; Gross, James J.

    Scholars interested in emotion regulation have documented the different goals and strategies individuals have for regulating their emotions. However, little attention has been paid to the regulation of group-based emotions, which are based on individuals' self-categorization as a group member and

  5. Oxytocin modulates cooperation within and competition between groups: an integrative review and research agenda

    NARCIS (Netherlands)

    de Dreu, C.K.W.

    2012-01-01

    The author reviews evidence that hypothalamic release (or infusion) of the neuropeptide oxytocin modulates the regulation of cooperation and conflict among humans because of three reasons. First, oxytocin enables social categorization of others into in-group versus out-group. Second, oxytocin

  6. Group Investigation as a Cooperative Learning Strategy: An Integrated Analysis of the Literature

    Science.gov (United States)

    Mitchell, Mitzi G.; Montgomery, Hilary; Holder, Michelle; Stuart, Dan

    2008-01-01

    The cooperative learning strategy of group investigation has been used extensively in elementary and high school classrooms. Whereas this learning strategy seems to benefit low- and middle-achieving students, the performance of high-achieving students seems to change little. This article examines the literature on group investigation as a…

  7. Web-based management of research groups - using the right tools and an adequate integration strategy

    Energy Technology Data Exchange (ETDEWEB)

    Barroso, Antonio Carlos de Oliveira; Menezes, Mario Olimpio de, E-mail: barroso@ipen.b, E-mail: mario@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil). Grupo de Pesquisa em Gestao do Conhecimento Aplicada a Area Nuclear

    2011-07-01

    Nowadays broad interest in a couple of inter linked subject areas can make the configuration of a research group to be much diversified both in terms of its components and of the binding relationships that glues the group together. That is the case of the research group for knowledge management and its applications to nuclear technology - KMANT at IPEN, a living entity born 7 years ago and that has sustainably attracted new collaborators. This paper describes the strategic planning of the group, its charter and credo, the present components of the group and the diversified nature of their relations with the group and with IPEN. Then the technical competencies and currently research lines (or programs) are described as well as the research projects, and the management scheme of the group. In the sequence the web-based management and collaboration tools are described as well our experience with their use. KMANT have experiment with over 20 systems and software in this area, but we will focus on those aimed at: (a) web-based project management (RedMine, ClockinIT, Who does, PhProjekt and Dotproject); (b) teaching platform (Moodle); (c) mapping and knowledge representation tools (Cmap, Freemind and VUE); (d) Simulation tools (Matlab, Vensim and NetLogo); (e) social network analysis tools (ORA, MultiNet and UciNet); (f) statistical analysis and modeling tools (R and SmartPLS). Special emphasis is given to the coupling of the group permanent activities like graduate courses and regular seminars and how newcomers are selected and trained to be able to enroll the group. A global assessment of the role the management strategy and available tool set for the group performance is presented. (author)

  8. Integration of individual and social information for decision-making in groups of different sizes

    National Research Council Canada - National Science Library

    Seongmin A Park; Sidney Goïame; Jean-Claude Dreher

    2017-01-01

    ... (individual information) with those of others (social information). Here, we investigated the neurocomputational mechanisms of how we adapt our judgments to those made by groups of different sizes, in the context of jury decisions for a criminal...

  9. Lyapunov Based-Distributed Fuzzy-Sliding Mode Control for Building Integrated-DC Microgrid with Plug-in Electric Vehicle

    DEFF Research Database (Denmark)

    Ghiasi, Mohammad Iman; Aliakbar Golkar, Masoud; Hajizadeh, Amin

    2017-01-01

    This paper presents a distributed control strategy based on Fuzzy-Sliding Mode Control (FSMC) for power control of an infrastructure integrated with a DC-Microgrid, which includes photovoltaic, fuel cell and energy storage systems with Plug-in Electric Vehicles (PEVs). In order to implement...

  10. Military Curricula for Vocational & Technical Education. Basic Electricity and Electronics. CANTRAC A-100-0010. Module 34: Linear Integrated Circuits. Study Booklet.

    Science.gov (United States)

    Chief of Naval Education and Training Support, Pensacola, FL.

    This individualized learning module on linear integrated circuits is one in a series of modules for a course in basic electricity and electronics. The course is one of a number of military-developed curriculum packages selected for adaptation to vocational instructional and curriculum development in a civilian setting. Two lessons are included in…

  11. Using group learning to promote integration and cooperative learning between Asian and Australian second-year veterinary science students.

    Science.gov (United States)

    Mills, Paul C; Woodall, Peter F; Bellingham, Mark; Noad, Michael; Lloyd, Shan

    2007-01-01

    There is a tendency for students from different nationalities to remain within groups of similar cultural backgrounds. The study reported here used group project work to encourage integration and cooperative learning between Australian students and Asian (Southeast Asian) international students in the second year of a veterinary science program. The group project involved an oral presentation during a second-year course (Structure and Function), with group formation engineered to include very high, high, moderate, and low achievers (based on previous grades). One Asian student and three Australian students were placed in each group. Student perceptions of group dynamics were analyzed through a self-report survey completed at the end of the presentations and through group student interviews. Results from the survey were analyzed by chi-square to compare the responses between Asian and Australian students, with statistical significance accepted at p learning experience. Asian students expressed a greater preference for working in a group than for working alone (p = 0.001) and reported more frequently than Australian students that teamwork produces better results (p = 0.01). Australian students were more likely than Asian students to voice their opinion in a team setting (p = 0.001), while Asian students were more likely to depend on the lecturer for directions (p = 0.001). The results also showed that group project work appeared to create an environment that supported learning and was a successful strategy to achieve acceptance of cultural differences.

  12. The Study and Implementation of Electrically Small Printed Antennas for an Integrated Transceiver Design

    Energy Technology Data Exchange (ETDEWEB)

    Speer, Pete [Univ. of Kansas, Lawrence, KS (United States)

    2009-04-28

    decrease the number of design iterations needed for future implementation of products requiring integration of small printed antennas. In the past, several design iterations have been needed to fine tune antenna dimensions and achieve acceptable levels of performance. This process consumes a large amount of time and material resources leading to costly development of transceiver designs. Typically, this occurs because matching components and antenna geometries are almost never correct on the first design. This work hopes to determine the limitations associated with antenna miniaturization and provide well known antenna examples that can be easily used in future work.

  13. A framework and review of customer outage costs: Integration and analysis of electric utility outage cost surveys

    Energy Technology Data Exchange (ETDEWEB)

    Lawton, Leora; Sullivan, Michael; Van Liere, Kent; Katz, Aaron; Eto, Joseph

    2003-11-01

    A clear understanding of the monetary value that customers place on reliability and the factors that give rise to higher and lower values is an essential tool in determining investment in the grid. The recent National Transmission Grid Study recognizes the need for this information as one of growing importance for both public and private decision makers. In response, the U.S. Department of Energy has undertaken this study, as a first step toward addressing the current absence of consistent data needed to support better estimates of the economic value of electricity reliability. Twenty-four studies, conducted by eight electric utilities between 1989 and 2002 representing residential and commercial/industrial (small, medium and large) customer groups, were chosen for analysis. The studies cover virtually all of the Southeast, most of the western United States, including California, rural Washington and Oregon, and the Midwest south and east of Chicago. All variables were standardized to a consistent metric and dollar amounts were adjusted to the 2002 CPI. The data were then incorporated into a meta-database in which each outage scenario (e.g., the lost of electric service for one hour on a weekday summer afternoon) is treated as an independent case or record both to permit comparisons between outage characteristics and to increase the statistical power of analysis results. Unadjusted average outage costs and Tobit models that estimate customer damage functions are presented. The customer damage functions express customer outage costs for a given outage scenario and customer class as a function of location, time of day, consumption, and business type. One can use the damage functions to calculate outage costs for specific customer types. For example, using the customer damage functions, the cost experienced by an ''average'' customer resulting from a 1 hour summer afternoon outage is estimated to be approximately $3 for a residential customer, $1

  14. Data And Informatics Working Group On Virtual Data Integration Workshop Report

    Energy Technology Data Exchange (ETDEWEB)

    Williams, D. N. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Palanisamy, G. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Dam, K. K. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2015-10-13

    This report is the outcome of a workshop that was commissioned by the Department of Energy’s Climate and Environmental Sciences Division (CESD) to examine current and future data infrastructure requirements that would be foundational to achieving CESD’s scientific mission goals. Over the past several years, data volumes in CESD disciplines have risen sharply to unprecedented levels (tens of petabytes). So too has the complexity and diversity of the research data (simulation, observation, and reanalysis) needing to be captured, stored, verified, analyzed, and integrated. With the trends of increased data volume (in the hundreds of petabytes), more complex analysis processes, and growing crossdisciplinary collaborations, it is timely to investigate whether the CESD community has the right computational and data support to realize the full scientific potential from its data collections. In recognition of the challenges, a partnership is forming across CESD and with national and international agencies to investigate the viability of creating an integrated, collaborative data infrastructure: a virtual laboratory. The overarching goal of this report is to identify the community’s key data technology requirements and high-priority development needs for sustaining and growing their scientific discovery potential. The report also aims to map these requirements to existing solutions and to identify gaps in current services, tools, and infrastructure that will need to be addressed in the short, medium, and long term so as not to impede scientific progress

  15. Production of electricity through biomass gasification system downdraft and generator group with a capacity of 50 kVA

    Directory of Open Access Journals (Sweden)

    Fabrízio Luiz Figueiredo

    2012-11-01

    Full Text Available This paper presents the results of tests performed with an internal combustion engine adapted to MWM Otto cycle, coupled to an electricity generator with a capacity of 50 kVA, fed exclusively with synthesis gas from a biomass gasifier downdraft, using wood eucalyptus. Also featured are the characteristics and efficiency of the generator set, in order to assess the feasibility of applying the system in remote locations, where biomass is available and the system of conventional electric power transmission is hampered by distance. The synthesis gas generated showed the average composition of 16,9% H2, 20% CO, 10,9% CO2, CH4, 2% and 50,1% N2. The performance of the span was monitored by applying loads of 0, 7, 13, 20,1 and 26,4 kW, the generator, keeping the average voltage of 222 V and currents of 0, 18,5, 33, 51, 84 and 67 A.

  16. Creating a library holding group: an approach to large system integration.

    Science.gov (United States)

    Huffman, Isaac R; Martin, Heather J; Delawska-Elliott, Basia

    2016-10-01

    Faced with resource constraints, many hospital libraries have considered joint operations. This case study describes how Providence Health & Services created a single group to provide library services. Using a holding group model, staff worked to unify more than 6,100 nonlibrary subscriptions and 14 internal library sites. Our library services grew by unifying 2,138 nonlibrary subscriptions and 11 library sites and hiring more library staff. We expanded access to 26,018 more patrons. A model with built-in flexibility allowed successful library expansion. Although challenges remain, this success points to a viable model of unified operations.

  17. The Allolobophora sturanyi species group revisited: Integrated taxonomy and new taxa (Clitellata: Megadrili

    Directory of Open Access Journals (Sweden)

    Szederjesi, T.

    2016-04-01

    Full Text Available The Allolobophora sturanyi Rosa, 1895 species group is revisited using DNA barcoding and morphology. Barcoding results corroborated the previous treatment of the Allolobophora sturanyi subspecies and furthermore proved that the morphologically similar Allolobophora gestroides Zicsi, 1970 species belong to this species group. Elaboration of new samples from the Apuseni Mts resulted in discovery of a new subspecies A. sturanyi biharica ssp. nov. from the summit of the Bihor range, and a new species A. zicsica from the Vladeasa range similar to A. gestroides described from Northern Hungary.

  18. Development of a Simulation Framework for Analyzing Security of Supply in Integrated Gas and Electric Power Systems

    Directory of Open Access Journals (Sweden)

    Kwabena Addo Pambour

    2017-01-01

    Full Text Available Gas and power networks are tightly coupled and interact with each other due to physically interconnected facilities. In an integrated gas and power network, a contingency observed in one system may cause iterative cascading failures, resulting in network wide disruptions. Therefore, understanding the impacts of the interactions in both systems is crucial for governments, system operators, regulators and operational planners, particularly, to ensure security of supply for the overall energy system. Although simulation has been widely used in the assessment of gas systems as well as power systems, there is a significant gap in simulation models that are able to address the coupling of both systems. In this paper, a simulation framework that models and simulates the gas and power network in an integrated manner is proposed. The framework consists of a transient model for the gas system and a steady state model for the power system based on AC-Optimal Power Flow. The gas and power system model are coupled through an interface which uses the coupling equations to establish the data exchange and coordination between the individual models. The bidirectional interlink between both systems considered in this studies are the fuel gas offtake of gas fired power plants for power generation and the power supply to liquefied natural gas (LNG terminals and electric drivers installed in gas compressor stations and underground gas storage facilities. The simulation framework is implemented into an innovative simulation tool named SAInt (Scenario Analysis Interface for Energy Systems and the capabilities of the tool are demonstrated by performing a contingency analysis for a real world example. Results indicate how a disruption triggered in one system propagates to the other system and affects the operation of critical facilities. In addition, the studies show the importance of using transient gas models for security of supply studies instead of successions of

  19. Integration between electric heat pump and PV system to increase self-consumption of an office application

    Directory of Open Access Journals (Sweden)

    Roselli Carlo

    2017-01-01

    Full Text Available The paper examines a solar electric driven heat pump serving an office building located in southern Italy. To satisfy space heating and cooling demand a heat pump activated by electric energy available from solar photovoltaic plant is here considered. In order to improve the self-consumption of electricity available from photovoltaic system different configurations were considered introducing an electric storage and an electric vehicle. Dynamic simulations to evaluate energy performance of the system varying photovoltaic peak power (4.5–7.5 kW have been carried out. The proposed system achieves a fossil fuel primary energy saving up to about 96% in comparison to the reference conventional system based on a natural gas fired boiler, an electric chiller and the national electric grid. The results show that fossil fuel primary energy saving is higher when there are no storage battery and electric vehicle.

  20. MPA-11: Materials Synthesis and Integrated Devices; Overview of an Applied Energy Group

    Energy Technology Data Exchange (ETDEWEB)

    Dattelbaum, Andrew Martin [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2017-11-16

    Our mission is to provide innovative and creative chemical synthesis and materials science solutions to solve materials problems across the LANL missions. Our group conducts basic and applied research in areas related to energy security as well as problems relevant to the Weapons Program.

  1. A Traumatic Death Support Group Program: Applying an Integrated Conceptual Framework

    Science.gov (United States)

    Walijarvi, Corrine M.; Weiss, Ann H.; Weinman, Maxine L.

    2012-01-01

    This article describes an 8-week, curriculum-based traumatic death support group program that is offered at Bo's Place, a grief and bereavement center in Houston, Texas. The program was implemented in 2006 in an effort to help family members who had experienced a death in the family by suicide, murder, accident, or sudden medical problem. The…

  2. Integrating Identities: Facilitating a Support Group for LGBTQ Students on a Christian College Campus

    Science.gov (United States)

    Vespone, Brianna M.

    2016-01-01

    College can be a challenging time for young adults, as many are experiencing life on their own for the first time, adjusting to new lifestyles, new social groups, and new ways to express themselves. For lesbian, gay, bisexual, transgender, and queer (LGBTQ) college students, the challenges are increased as they face harassment, discrimination, and…

  3. Integrating a Facebook Group and a Course Website: The Effect on Participation and Perceptions on Learning

    Science.gov (United States)

    Kurtz, Gila

    2014-01-01

    This study investigated how the use of two virtual platforms for learning--a Facebook group and a learning management system course website--affect students' perceptions of learning and participation. The theoretical basis for the research relied on social-constructivist theory. It was found that Facebook, although not originally created for…

  4. Plan of research for integrated soil moisture studies. Recommendations of the Soil Moisture Working Group

    Science.gov (United States)

    1980-01-01

    Soil moisture information is a potentially powerful tool for applications in agriculture, water resources, and climate. At present, it is difficult for users of this information to clearly define their needs in terms of accuracy, resolution and frequency because of the current sparsity of data. A plan is described for defining and conducting an integrated and coordinated research effort to develop and refine remote sensing techniques which will determine spatial and temporal variations of soil moisture and to utilize soil moisture information in support of agricultural, water resources, and climate applications. The soil moisture requirements of these three different application areas were reviewed in relation to each other so that one plan covering the three areas could be formulated. Four subgroups were established to write and compile the plan, namely models, ground-based studies, aircraft experiments, and spacecraft missions.

  5. Computation of currents induced by ELF electric fields in anisotropic human tissues using the Finite Integration Technique (FIT

    Directory of Open Access Journals (Sweden)

    V. C. Motrescu

    2005-01-01

    Full Text Available In the recent years, the task of estimating the currents induced within the human body by environmental electromagnetic fields has received increased attention from scientists around the world. While important progress was made in this direction, the unpredictable behaviour of living biological tissue made it difficult to quantify its reaction to electromagnetic fields and has kept the problem open. A successful alternative to the very difficult one of performing measurements is that of computing the fields within a human body model using numerical methods implemented in a software code. One of the difficulties is represented by the fact that some tissue types exhibit an anisotropic character with respect to their dielectric properties. Our work consists of computing currents induced by extremely low frequency (ELF electric fields in anisotropic muscle tissues using in this respect, a human body model extended with muscle fibre orientations as well as an extended version of the Finite Integration Technique (FIT able to compute fully anisotropic dielectric properties.

  6. Integration Design and Optimization Control of a Dynamic Vibration Absorber for Electric Wheels with In-Wheel Motor

    Directory of Open Access Journals (Sweden)

    Mingchun Liu

    2017-12-01

    Full Text Available This paper presents an integration design scheme and an optimization control strategy for electric wheels to suppress the in-wheel vibration and improve vehicle ride comfort. The in-wheel motor is considered as a dynamic vibration absorber (DVA, which is isolated from the unsprung mass by using a spring and a damper. The proposed DVA system is applicable for both the inner-rotor motor and outer-rotor motor. Parameters of the DVA system are optimized for the typical conditions, by using the particle swarm optimization (PSO algorithm, to achieve an acceptable vibration performance. Further, the DVA actuator force is controlled by using the alterable-domain-based fuzzy control method, to adaptively suppress the wheel vibration and reduce the wallop acting on the in-wheel motor (IWM as well. In addition, a suspension actuator force is also controlled, by using the linear quadratic regulator (LQR method, to enhance the suspension performance and meanwhile improve vehicle ride comfort. Simulation results demonstrate that the proposed DVA system effectively suppresses the wheel vibration and simultaneously reduces the wallop acting on the IWM. Also, the alterable-domain-based fuzzy control method performs better than the conventional ones, and the LQR-based suspension exhibits excellent performance in vehicle ride comfort.

  7. Thermal Performance of Motor and Inverter in an Integrated Starter Generator System for a Hybrid Electric Vehicle

    Directory of Open Access Journals (Sweden)

    Sung Chul Kim

    2013-11-01

    Full Text Available If the integrated starter generator (ISG motor and inverter operate under continuously high loading conditions, the system’s performance and durability will decrease and the heat dissipation requirements will increase. Therefore, in this study, we developed two cooling designs for the ISG motor and inverter, and then carried out both a model analysis and an experiment on the fluid flow and thermal characteristics of the system under various operating conditions. As the outdoor temperature increased from 25 °C to 95 °C, the coil temperature of the air-cooled motor increased by about 82 °C. Under the harsh-air condition of 95 °C, the coil of the air-cooled motor increased to a maximum temperature of about 158.5 °C. We also determined that the temperature of the metal-oxide-semiconductor field-effect transistor (MOSFET chip in the liquid-cooled inverter increased to a maximum temperature of about 96.8 °C under a coolant flow rate of 4 L/min and a coolant temperature of 65 °C. The observed thermal performance of the ISG motor and inverter using the proposed cooling structures was found to be sufficient for heat loads under various real driving conditions for a hybrid electric vehicle (HEV.

  8. Integrating the Levels of Person-Environment Fit: The Roles of Vocational Fit and Group Fit

    Science.gov (United States)

    Vogel, Ryan M.; Feldman, Daniel C.

    2009-01-01

    Previous research on fit has largely focused on person-organization (P-O) fit and person-job (P-J) fit. However, little research has examined the interplay of person-vocation (P-V) fit and person-group (P-G) fit with P-O fit and P-J fit in the same study. This article advances the fit literature by examining these relationships with data collected…

  9. Bridging Income Generation with Group Integrated Care for cardiovascular risk reduction: Rationale and design of the BIGPIC study.

    Science.gov (United States)

    Vedanthan, Rajesh; Kamano, Jemima H; Lee, Hana; Andama, Benjamin; Bloomfield, Gerald S; DeLong, Allison K; Edelman, David; Finkelstein, Eric A; Hogan, Joseph W; Horowitz, Carol R; Manyara, Simon; Menya, Diana; Naanyu, Violet; Pastakia, Sonak D; Valente, Thomas W; Wanyonyi, Cleophas C; Fuster, Valentin

    2017-06-01

    Cardiovascular disease (CVD) is the leading cause of mortality worldwide, with >80% of CVD deaths occurring in low and middle income countries (LMICs). Diabetes mellitus and pre-diabetes are risk factors for CVD, and CVD is the major cause of morbidity and mortality among individuals with DM. There is a critical period now during which reducing CVD risk among individuals with diabetes and pre-diabetes may have a major impact. Cost-effective, culturally appropriate, and context-specific approaches are required. Two promising strategies to improve health outcomes are group medical visits and microfinance. This study tests whether group medical visits integrated into microfinance groups are effective and cost-effective in reducing CVD risk among individuals with diabetes or at increased risk for diabetes in western Kenya. An initial phase of qualitative inquiry will assess contextual factors, facilitators, and barriers that may impact integration of group medical visits and microfinance for CVD risk reduction. Subsequently, we will conduct a four-arm cluster randomized trial comparing: (1) usual clinical care, (2) usual clinical care plus microfinance groups only, (3) group medical visits only, and (4) group medical visits integrated into microfinance groups. The primary outcome measure will be 1-year change in systolic blood pressure, and a key secondary outcome measure is 1-year change in overall CVD risk as measured by the QRISK2 score. We will conduct mediation analysis to evaluate the influence of changes in social network characteristics on intervention outcomes, as well as moderation analysis to evaluate the influence of baseline social network characteristics on effectiveness of the interventions. Cost-effectiveness analysis will be conducted in terms of cost per unit change in systolic blood pressure, percent change in CVD risk score, and per disability-adjusted life year saved. This study will provide evidence regarding effectiveness and cost

  10. More Perspectives, New Politics, New Life: How a Small Group Used The Integral Process For Working On Complex Issues

    Directory of Open Access Journals (Sweden)

    Sara Ross

    2006-06-01

    Full Text Available This article reports on a small research project with citizens who wanted to address their community’s chronically adversarial behaviors and atmosphere. It complements a longer research report on the same project, which is also published in this issue of Integral Review. The project used a structured public discourse process, The Integral Process For Working On Complex Issues (TIP. This article supplies background on TIP’s origins, then focuses on two areas. First, it explains the process steps used in the project in conjunction with the issue that participants developed by using them. Second, using examples from participants’ experiences of transformative impacts from their work in the project, it reports on two themes that underlie the main impacts and outcomes. The group worked on an issue about how its own intentions and tones needed to be chosen carefully if participants wanted to improve the adversarial local culture. The article includes links to “products” the group created in the course of its work. The themes were about dissolving “us versus them” mindsets and behaviors, and the liberation of being able to use multiple perspectives (as compared to only one point of view. This article is aimed at a diverse audience of individuals and organizations interested in promoting healthy individual and social change by addressing complex public issues and relationships. A brief epilogue sketches how TIP embeds criteria of integral theory.

  11. Developing Policy for Integrating Biomedicine and Traditional Chinese Medical Practice Using Focus Groups and the Delphi Technique

    Directory of Open Access Journals (Sweden)

    Vincent C. H. Chung

    2012-01-01

    Full Text Available In Hong Kong, statutory regulation for traditional Chinese medicine (TCM practitioners has been implemented in the past decade. Increasing use of TCM on top of biomedicine (BM services by the population has been followed; but corresponding policy development to integrate their practices has not yet been discussed. Using focus group methodology, we explore policy ideas for integration by collating views from frontline BM (n=50 and TCM clinicians (n=50. Qualitative data were analyzed under the guidance of structuration model of collaboration, a theoretical model for understanding interprofessional collaboration. From focus group findings we generated 28 possible approaches, and subsequently their acceptability was assessed by a two round Delphi survey amongst BM and TCM policy stakeholders (n=12. Consensus was reached only on 13 statements. Stakeholders agreed that clinicians from both paradigms should share common goals of providing patient-centered care, promoting the development of protocols for shared care and information exchange, as well as strengthening interprofessional connectivity and leadership for integration. On the other hand, attitudes amongst policy stakeholders were split on the possibility of fostering trust and mutual learning, as well as on enhancing innovation and governmental support. Future policy initiatives should focus on these controversial areas.

  12. Comparative Analysis of the Level of Social Integration in Cattle Farmers’ Groups in Banjarnegara District, Indonesia

    Directory of Open Access Journals (Sweden)

    M Sugiarto

    2007-11-01

    Full Text Available Pembentukan dan pengembangan kelompok peternak akan dapat meningkatkan kekompakan dan kebersamaan antar peternak dalam melakukan aktifitas usaha peternakan. Melalui kelompok peternak, anggota akan bersatu dan bekerja sama untuk menjadikan mereka lebih berdaya (empowered. Integrasi sosial (social integration di dalam kelompok peternak merupakan faktor yang penting dalam upaya peningkatan proses pemberdayaan anggota dan keberlanjutan kelompok ternak. Penelitian ini bertujuan untuk mengetahui dan membandingkan tingkat integrasi sosial peternak dalam kelompok peternak yang digolongkan berdasarkan tingkat perkembangan organisasi (organizational development di Kabupaten Banjarnegara. Ketiga golongan kelompok peternak tersebut adalah pemula (beginner, madya (intermediate dan lanjut (advance. Delapan kelompok peternak yang terdiri dari 145 peternak dipilih sebagai responden dengan menggunakan metode pengambilan sample berjenjang. Data tentang tingkat integrasi sosial dikumpulkan menggunakan kuisioner terbuka dan tertutup. Uji Kruskal-Wallis digunakan untuk membandingkan tingkat integrasi sosial pada tiga golongan kelompok ternak berdasarkan tingkat perkembangan oganisasi. Hasil penelitian menunjukkan bahwa integrasi sosial peternak di dalam kelompok peternak di Kabupaten Banjarnegara sudah cukup tinggi. Berdasarkan uji Kruskal-Wallis, tingkat integrasi sosial peternak menunjukkan perbedaan (P<0,05 pada ketiga golongan kelompok ternak yang ada di Kabupaten Banjarnegara (pemula, madya dan lanjut. Peternak pada kelompok peternak golongan lanjut (advance mempunyai rata-rata tingkat sosial integrasi yang relatif lebih tinggi dibandingkan pada kelompok peternak golongan pemula (beginner dan madya (intermediate. (Animal Production 9(2: 184-189 (2007 Kata Kunci: Pemberdayaan, integrasi sosial, tingkat perkembangan organisasi

  13. VIMOS Integral Field Spectroscopy of Gaseous Nebulae in Local Group Dwarf Galaxies

    Science.gov (United States)

    Held, E. V.; Gullieuszik, M.; Saviane, I.; Sabbadin, F.; Momany, Y.; Rizzi, L.; Bresolin, F.

    The study of very metal-poor dwarf irregular (dIrr) galaxies is fundamental to test the cosmological scenarios of galaxy formation. Among Local Group galaxies, Leo A and SagDIG are probably the most metal-poor dwarfs, as suggested by estimates of their nebular abundances based on the empirical method [I. Saviane, L. Rizzi, E.V. Held, F. Bresolin, Y. Momany in Astron. Astrophys. 390, 59 (2002); E.D. Skillman, R. Terlevich, J. Melnick in Mon. Not. R. Astron. Soc. 240, 563 (1989); L. van Zee, E.D. Skillman, M.P. Haynes in Astrophys. J. 637, 269 (2006)].

  14. Projective structure and integrable geodesic flows on the extension of Bott-Virasoro group

    Directory of Open Access Journals (Sweden)

    Partha Guha

    2004-01-01

    Full Text Available This is a sequel to our paper (Lett. Math. Phys. (2000, triggered from a question posed by Marcel, Ovsienko, and Roger in their paper (1997. In this paper, we show that the multicomponent (or vector Ito equation, modified dispersive water wave equation, and modified dispersionless long wave equation are the geodesic flows with respect to an L2 metric on the semidirect product space Diffs(S1⋉C∞(S1kˆ, where Diffs(S1 is the group of orientation preserving Sobolev Hs diffeomorphisms of the circle. We also study the projective structure associated with the matrix Sturm-Liouville operators on the circle.

  15. Integrated wireless fast-scan cyclic voltammetry recording and electrical stimulation for reward-predictive learning in awake, freely moving rats.

    Science.gov (United States)

    Li, Yu-Ting; Wickens, Jeffery R; Huang, Yi-Ling; Pan, Wynn H T; Chen, Fu-Yu Beverly; Chen, Jia-Jin Jason

    2013-08-01

    Fast-scan cyclic voltammetry (FSCV) is commonly used to monitor phasic dopamine release, which is usually performed using tethered recording and for limited types of animal behavior. It is necessary to design a wireless dopamine sensing system for animal behavior experiments. This study integrates a wireless FSCV system for monitoring the dopamine signal in the ventral striatum with an electrical stimulator that induces biphasic current to excite dopaminergic neurons in awake freely moving rats. The measured dopamine signals are unidirectionally transmitted from the wireless FSCV module to the host unit. To reduce electrical artifacts, an optocoupler and a separate power are applied to isolate the FSCV system and electrical stimulator, which can be activated by an infrared controller. In the validation test, the wireless backpack system has similar performance in comparison with a conventional wired system and it does not significantly affect the locomotor activity of the rat. In the cocaine administration test, the maximum electrically elicited dopamine signals increased to around 230% of the initial value 20 min after the injection of 10 mg kg(-1) cocaine. In a classical conditioning test, the dopamine signal in response to a cue increased to around 60 nM over 50 successive trials while the electrically evoked dopamine concentration decreased from about 90 to 50 nM in the maintenance phase. In contrast, the cue-evoked dopamine concentration progressively decreased and the electrically evoked dopamine was eliminated during the extinction phase. In the histological evaluation, there was little damage to brain tissue after five months chronic implantation of the stimulating electrode. We have developed an integrated wireless voltammetry system for measuring dopamine concentration and providing electrical stimulation. The developed wireless FSCV system is proven to be a useful experimental tool for the continuous monitoring of dopamine levels during animal learning

  16. ELECTRE III: A knowledge-driven method for integration of geophysical data with geological and geochemical data in mineral prospectivity mapping

    Science.gov (United States)

    Abedi, Maysam; Torabi, Seyed Ali; Norouzi, Gholam-Hossain; Hamzeh, Mohammad

    2012-12-01

    This paper describes the application of a multicriteria decision-making (MCDM) technique called ELECTRE III, which is well-known in operations research, to mineral prospectivity mapping (MPM), which involves representation and integration of evidential map layers derived from geological, geophysical, and geochemical geo-data sets. In a case study, thirteen evidential map layers are used for MPM in the area containing the Now Chun copper prospect in the Kerman province of Iran. The ELECTRE III technique was applied for MPM, and the outputs are validated using 3D models of Cu and Mo concentrations from 21 drill hole data. This proposed method shows high performance for MPM.

  17. The Second International Piping Integrity Research Group (IPIRG-2) program. Final report, October 1991--April 1996

    Energy Technology Data Exchange (ETDEWEB)

    Hopper, A.; Wilowski, G.; Scott, P.; Olson, R. [and others

    1997-03-01

    The IPIRG-2 program was an international group program managed by the US NRC and funded by organizations from 15 nations. The emphasis of the IPIRG-2 program was the development of data to verify fracture analyses for cracked pipes and fittings subjected to dynamic/cyclic load histories typical of seismic events. The scope included: (1) the study of more complex dynamic/cyclic load histories, i.e., multi-frequency, variable amplitude, simulated seismic excitations, than those considered in the IPIRG-1 program, (2) crack sizes more typical of those considered in Leak-Before-Break (LBB) and in-service flaw evaluations, (3) through-wall-cracked pipe experiments which can be used to validate LBB-type fracture analyses, (4) cracks in and around pipe fittings, such as elbows, and (5) laboratory specimen and separate effect pipe experiments to provide better insight into the effects of dynamic and cyclic load histories. Also undertaken were an uncertainty analysis to identify the issues most important for LBB or in-service flaw evaluations, updating computer codes and databases, the development and conduct of a series of round-robin analyses, and analyst`s group meetings to provide a forum for nuclear piping experts from around the world to exchange information on the subject of pipe fracture technology. 17 refs., 104 figs., 41 tabs.

  18. The Adherence to Physical Exercise in a Group of Prostate Cancer: an Integrated Model to Improve the Quality of Life

    Directory of Open Access Journals (Sweden)

    Bernat-Carles Serdà i Ferrer

    2011-12-01

    Full Text Available This article presents the design and implementation of a model of adherence integrated into an exercise program in men with prostate cancer to get the autonomous practice at home. The study design is qualitative following Grounded Theory principles. The sample of 33 participants and it has been built through an intensive sampling by theoretical representativeness. The analytical procedure corresponds to the Method of Constants Comparisons. The design of simple and flexible program with a modular structure allows the user to adapt the exercise to his health, his symptoms resulting from the disease and his everyday life situation. The figure of professional trainer is essential in the process of achieving the autonomy. Working adherence as a process empowers the participant to maintain the autonomous activity at home. The adherence model integrated to a group exercise program is effective for improving the quality of life of older people affected by prostate cancer.

  19. Integrating Research, Theory-Building, Training, and Practice in CBT Group Therapy for Children and Adolescents with anxiety

    DEFF Research Database (Denmark)

    Thastum, Mikael

    This presentation will describe how the model developed in Esben Hougaard's Adult CBT Therapy Program at Aarhus University - which integrates research, theory-building, training, and practice - has beenadapted to work with children and adolescents with anxiety disorders and their parents. The res......This presentation will describe how the model developed in Esben Hougaard's Adult CBT Therapy Program at Aarhus University - which integrates research, theory-building, training, and practice - has beenadapted to work with children and adolescents with anxiety disorders and their parents...... centers (n=40); (c) an open study with both group-based and case-based analyses of case-formulation-focused CBT for non-responding clients and their families (n = 20); (d) an explorative study of the treatment program for children with ADHD and comorbid anxiety disorder (n = 12); and (e) etiological...

  20. Performance analysis of electric power group of 50 kVA with MWM engine adapted to Otto cycle, using natural gas

    Directory of Open Access Journals (Sweden)

    Fabrízio L. Figueiredo

    2014-02-01

    Full Text Available This paper presents the data of tests with an internal combustion engine MWM adapted to Otto cycle, coupled to an electric generator with a capacity of 50 kVA, using natural gas . It is presented the characteristics and efficiency of the set for the purpose of comparison with its future operation using synthesis gas produced by a gasifier (biomass gas, to evaluate the feasibility of applying the system in remote locations, where biomass is available and system for transmitting electricity from other generation systems hampered by distance. The performance of the assembly was monitored at 0, 25, 50, 75 and 100% of its power capacity presented in increasing order of load voltages 220, 220, 221, 221 and 222 volts and currents 0, 25, 50, 75 and 100 amperes respectively for the load of 0, 9,5, 19, 27,5 and 38 kW the latter being the maximum output developed by the group.