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Sample records for institute rez plc

  1. Institutional radioactive waste management in the Nuclear Research Institute Rez plc

    International Nuclear Information System (INIS)

    Kovarik, P.; Svoboda, K.; Podlaha, J.

    2008-01-01

    Nuclear research institute Rez, plc. (mentioned below as NRI) has had a dominant position in the area of the nuclear research and development in the Czech Republic, the Central and the Eastern Europe. Naturally, the radioactive waste management is an integral part of the nuclear industry, research and development. For that reason, there is Centre of the radioactive waste management (mentioned below as Centre) in the NRI. This Centre is engaged in the radioactive waste treatment, decontamination, characterisation, decommissioning and other relevant activities. This paper describes the system of technology and other information about institutional radioactive waste management in the NRI. (authors)

  2. System of institutional radioactive waste management in the Nuclear Research Institute Rez plc

    International Nuclear Information System (INIS)

    Podlaha, J.; Burian, P.

    2005-01-01

    The Nuclear Research Institute Rez plc (NRI) is a leading institution in the area of nuclear Research and Development in the Czech Republic. The NRI has had a dominant position in the nuclear programme since it was established in 1955 as a state-owned research organization and it has developed to its current status. In December 1992 the NRI has been transformed into a joint-stock company. The NRI's activity encompasses nuclear physics, chemistry, nuclear power, experiments at the research reactor and many other topics. Main issues addressed in the NRI in the past decades were concentrated on research, development and services provided to the nuclear power plants operating WWER reactors, development of chemical technologies for fuel cycle and irradiation services to research and development in the industrial sector, agriculture, food processing and medicine. At present the research activities are mainly targeted to assist the State Office for Nuclear Safety -the nuclear safety regulating body, power plant operator and nuclear facilities contractors. Significant attention is also paid to the use of nuclear technology outside the nuclear power sector, providing a wide range of services to industry , medicine and the preparation of radiopharmaceuticals. NRI operates two research nuclear reactors and another facilities such as a hot cell facility , research laboratories, technology for radioactive waste (RAW) management, 60 Co irradiators, an electron accelerator, etc. In this paper the Centre of RAW management, system of RAW management, facilities for RAW management as well as decontamination and decommissioning activities of the NRI are presented. The NRI provides complex services in the area of RAW management and has gained many experience and full qualification not only in this area but also in the area of decontamination and decommissioning and spent fuel management. The NRI guarantees safe RAW and spent fuel management. (authors)

  3. Remediation of old environmental liabilities in the Nuclear Research Institute Rez plc

    International Nuclear Information System (INIS)

    Svoboda, Karel; Podlaha, Josef

    2011-01-01

    The Nuclear Research Institute Rez plc (NRI) after 55 years of activities in the nuclear field produced some environmental liabilities that shall be remedied. There are three areas of remediation: (1) decommissioning of old obsolete facilities (e.g. decay tanks, RAW treatment technology, special sewage system), (2) processing of RAW from operation and dismantling of nuclear facilities, and (3) elimination of spent fuel from research nuclear reactors operated by the NRI. The goal is to remedy the environmental liabilities and eliminate the potential negative impact on the environment. Remediation of the environmental liabilities started in 2003 and will be finished in 2014. The character of the environmental liabilities is very specific and requires special remediation procedures. Special technologies are being developed with assistance of external subcontractors. The NRI has gained many experiences in the field of RAW management and decommissioning of nuclear facilities and will use its facilities, experienced staff and all relevant data needed for the successful realization of the remediation. The most significant items of environmental liabilities are described in the paper together with information about the history, the current state, the progress, and the future activities in the field of remediation of environmental liabilities in the NRI. (author)

  4. Research and development of pyrochemical technologies for ADTT systems in NRI Rez plc

    International Nuclear Information System (INIS)

    Uhlir, J.

    1999-01-01

    The activities within the Czech national Partitioning and Transmutation program are oriented mainly toward the following areas: (i) ADS flowsheeting working out a proposal for a suitable technological flowsheet for treating spent fuel into a form fitted for transmutation reactor, including separation procedures before transmutation (Front-end) and separation processes after passage of fuel through the transmutor (Back-end). (ii) Technological research into the uranium component separation from spent fuel by the Fluoride Volatility Method semi-pilot-plant technological research based on the application of experience from spent fuel fluoride reprocessing. (iii) Laboratory research into electro-separation methods for the separation of fission products, plutonium and minor actinides from the fluoride melt. Selection of a suitable matrix composition of fluoride melts based on studies of their physicochemical properties and design of laboratory electro-separation facility. (iv) Development of materials and equipment for molten fluoride salts based ADS technologies, i.e. construction materials development, research into the corrosion resistance and development of equipment for molten fluoride salts technologies. The NRI Rez plc cooperates in this area with the SKODA Nuclear Machinery company

  5. A report on recent progress of Central Analytical Laboratory (NRI Rez plc.) for upgrading capabilities for identification of illicit nuclear materials

    International Nuclear Information System (INIS)

    Malek, Z.; Sus, F.

    2002-01-01

    Nuclear Research Institute Rez plc in the Central Analytical Laboratory under co-ordination of the European Commission Joint Research Centre 'Institute for Transuranium Elements' in Karlsruhe (ITU). In the framework of this PHARE project, the corresponding analytical capabilities of the Central Analytical Laboratory (CAL) of NRI have been substantially upgraded. In case of requested analysis of nuclear material of unknown origin seized in the Czech Republic it is now possible - after categorization by standard isotopic measurements - to perform a rapid precision measurement of impurity contents. This upgrade has been successfully applied to complementary measurements of nuclear material previously seized in the Czech Republic. The related results were included in a compilation of data characteristic for nuclear material used in Czech research facilities. The complete set has been incorporated in the nuclear material database system available at ITU Karlsruhe. In order to develop a common scheme for complementary analyses of nuclear material of unknown origin in the respective EU institutions - upon request of a partner state's nuclear regulatory authority - selected sample material was shipped to ITU Karlsruhe (part of the EU's Joint Research Centre JRC) and corresponding analyses were performed. The experience gained therein can be used as model for an interface procedure which in case of necessity can be invoked on short notice. These activities laid an excellent basis for a co-operation of both SONS and NRI with the Joint Research Center of the European Commission in the fields of: elaboration of state response procedures following seizure of vagabonding nuclear material; qualification of analytical procedures for nuclear safeguards. In the 2001 CAL of NRI participated in the second interlaboratory comparison (Round Robin) exercise, organized by the Nuclear Smuggling International Technical Working Group (ITWG), oriented towards forensic analysis of a selected high

  6. Nuclear Research Institute Rez: Its past and present and future challenges

    International Nuclear Information System (INIS)

    Pazdera, F.

    2001-01-01

    The paper gives an overview of the history of the Nuclear Research Institute Rez development over forty years of its existence. Its present activities are discussed in some detail. These historical and present activities represent the basis for discussing: challenges faced by the NRI; interactions of NRI with their environment; collaboration and co-operation. Nuclear research centres would continue to be the main source of expertise for power plant operation, radiation and isotope applications, regulatory practices and waste management. Future developments should ensure viability of these centres. (author)

  7. The human dimension of AIDS in Cuba: Jorge Pérez MD MS, Director, Pedro Kourí Tropical Medicine Institute. Interviewed by Gail Reed.

    Science.gov (United States)

    Pérez, Jorge

    2011-04-01

    Except for the people living with the disease, no others have so immersed themselves in Cuba's world of HIV/AIDS as Dr Jorge Pérez. It is a world of Cuban returnees from Angola's war against apartheid South Africa, gay and bisexual men, housewives, transactional sex workers, rebellious teenagers, and infected surgeons and scientists-a cultural kaleidoscope reflecting all the faces of AIDS. To more than one international author, he is simply "Cuba's AIDS doctor." Speaking to his patients at the Pedro Kourí Tropical Medicine Institute in Havana, it is easy to see why, but also to appreciate the courage, compassion, and persistent search for new knowledge that characterize the Institute's staff as a whole. Dr Pérez's story-now told in two books based on his diaries-is not his alone. MEDICC Review held two interview sessions with Jorge Pérez just days apart at the beginning of April: one before and one after his designation as the new Director of the Tropical Medicine Institute, where he previously served as Deputy Director and Chief of Hospital Services. More than strictly medical matters, the conversation turned to the human dimension of HIV/AIDS, the depth to which it has touched many directly and affected Cuban society as a whole, and the challenges ahead for Cuba's flagship institution for research and treatment of infectious diseases.

  8. Remediation of the old environmental liabilities in the Nuclear Research Institute Rez. Situation at the end of 2008

    Energy Technology Data Exchange (ETDEWEB)

    Kovarik, Petr; Svoboda, Karel; Podlaha, Josef [Nuclear Research Institute Rez (Czech Republic)

    2010-10-15

    The Nuclear Research Institute Rez (NRI) has been a leading institution in the area of R and D (Research and Development) in the Czech Republic. The NRI has had a dominant position in the nuclear programme of the former Czechoslovakia since it was established in 1955. In December 1992 the NRI has been transformed into a joint-stock company. The Institute's activity encompasses nuclear physics, radiochemistry, experiments at the research reactor and many other topics. Main issues addressed in the NRI in the past decades were concentrated on research, development and services provided to the VVER reactors, development of chemical technologies for fuel cycle and irradiation services. Currently, the research activities are mainly targeted to assist the State Office for Nuclear Safety. Significant attention is also paid to the use of nuclear technology outside the nuclear power sector, providing a wide range of services to industry, medicine and the preparation of radiopharmaceuticals. NRI operates 2 research nuclear reactors, hot cell facility, research laboratories, and technology for radioactive waste management, radionuclide irradiators, an electron accelerator and others. After 50 years of activities in the nuclear field, there have been many environmental liabilities that are being remedied in the NRI. There are 3 areas of these remediation activities: - decommissioning of old obsolete facilities, - processing of RAW resulting from operation and dismantling of nuclear facilities, and - elimination of spent fuel from research nuclear reactors. The goal is to remedy the environmental liabilities and eliminate the potential negative impact on the environment. Remediation of the environmental liabilities started in 2003 and should be finished in 2014. (orig.)

  9. Activities of Nuclear Research Institute Rez in the area of hydrogen technologies

    International Nuclear Information System (INIS)

    Doucek, A.; Janik, L.; Misak, J.

    2010-01-01

    NRI is a research institution established in 1955. Nowadays, the Institute provides wide range of expertise and services for operators of the nuclear power plants in the Czech Republic and abroad, supports Czech central state institutions in the domains of strategic energy planning and development, management of radioactive waste (for the Ministry of Trade and Industry), provides independent expertise for the State Office of Nuclear Safety, performs activities in the area of exploitation of ionising radiation and irradiation services for basic and applied research, health service and industry, performs research and provides services for radioactive waste disposal, production of radiopharmaceuticals, education and training of experts and scientific specialists and performs many other activities. With the gradual changes in energy policy, hydrogen economy becomes one of the important topics related to nuclear energy. NRI is participating in the research and development in this area and as a member of the Czech Hydrogen Technology Platform is currently the leader in this area in the country. To promote hydrogen economy, NRI prepared and participated in several demonstration projects. Studies on production of hydrogen in current and future nuclear power plants are performed as well. (authors)

  10. Research reactors spent fuel management in the Nuclear Research Institute Rez

    International Nuclear Information System (INIS)

    Rychecky, J.

    2001-01-01

    In Czech Republic 3 research and testing nuclear reactors are operated at present time, with the biggest one being the Nuclear Research Institute (NRI) reactor LVR-15, operated with maximum power 10 MW. This reactor serves as a radiation source for material testing, producing of ionizing radiation sources, theoretical studies, and, most recently, for boron neutron capture therapy. Another NRI reactor LR-0 is a reactor of zero power used mainly for the studies of WWER 1000 spent fuel criticality. For training of students the reactor called VRABEC (VR-1), operated also with very low power, serves since 1990 at the Faculty of Nuclear Engineering, of Czech Technical University. The similar testing type reactor (SR-0), already decommissioned, was also used since 1974 to 1989 in Skoda, Nuclear Machinery, Plzen. This contribution summarizes the present state of the spent fuel (SF) management of these nuclear reactors. As the SF management is different for very low or zero power reactors and power reactors, the first type will be only briefly discussed, and then the main attention will be devoted to SF management of the NRI experimental reactor LVR-15

  11. Research reactors spent fuel management in the Nuclear Research Institute Rez

    Energy Technology Data Exchange (ETDEWEB)

    Rychecky, J. [Nuclear Research Institute, 25068 Rez (Czech Republic)

    2001-07-01

    In Czech Republic 3 research and testing nuclear reactors are operated at present time, with the biggest one being the Nuclear Research Institute (NRI) reactor LVR-15, operated with maximum power 10 MW. This reactor serves as a radiation source for material testing, producing of ionizing radiation sources, theoretical studies, and, most recently, for boron neutron capture therapy. Another NRI reactor LR-0 is a reactor of zero power used mainly for the studies of WWER 1000 spent fuel criticality. For training of students the reactor called VRABEC (VR-1), operated also with very low power, serves since 1990 at the Faculty of Nuclear Engineering, of Czech Technical University. The similar testing type reactor (SR-0), already decommissioned, was also used since 1974 to 1989 in Skoda, Nuclear Machinery, Plzen. This contribution summarizes the present state of the spent fuel (SF) management of these nuclear reactors. As the SF management is different for very low or zero power reactors and power reactors, the first type will be only briefly discussed, and then the main attention will be devoted to SF management of the NRI experimental reactor LVR-15.

  12. PLC Programming

    International Nuclear Information System (INIS)

    Lee, Seong Jae; Wi, Seong Dong; Yoo, Jong Seon; Kim, Se Chan

    2001-02-01

    This book tells of PLC programming for KGL-WIN with summary of PLC, performance and function of PLC like characteristic of KGL-WIN, connection method with PLC, basic performance of K200S/K300S/K1000S, diagram of input and output H/W, writing project, staring the program, editing of program, on-line function, debugging and instructions like control, timer and counter, data transmission, comparison, rotation and moving, system, data operating data conversion and application program.

  13. Examination of Tycho Brahe's remains at the Nuclear Physics Institute, Academy of Sciences of the Czech Republic in Rez

    International Nuclear Information System (INIS)

    Kamenik, Jan; Kucera, Jan; Havranek, Vladimir; Kubesova, Marie

    2011-01-01

    The article reviews nuclear analytical methods employed for analysis of Tycho Brahe's remains in Nuclear Physics Institute of the Academy of Sciences of the Czech Republic. The samples included hair, beard, eyebrow, bones and teeth, which were obtained during reopening of the Tycho Brahe's tomb in Prague in November 2010. The main purpose of this study was to elucidate the reason of Tycho Brahe's death, namely the possibility of poisoning by mercury. Determination of a large number of elements was performed by instrumental neutron activation analysis using both relative and k 0 standardization. Sectioned hair and beard samples were analyzed to determine element concentration profiles along the hair length. The main emphasis was put on determination of Hg, which was carried out by radiochemical neutron activation analysis. Selected hair and beard samples were also studied using ion microprobe for 2D distribution of various elements, including mercury. (author)

  14. Nuclear Research Institute Rez view

    International Nuclear Information System (INIS)

    Biza, K.; Pazdera, F.; Vasa, I.; Zdarek, J.

    2004-01-01

    In this presentation author deals with the present state and perspectives of nuclear energy in the Czech Republic and in the Slovak Republic. It is concluded that lifetime extension and finalization of Mochovce NPP Units 3 and 4 is the cheapest solution for base load production of electricity and is in line with the European union energy challenges: - decrease of carbon dioxide emissions; dependence on energy sources from politically unstable regions; decrease import dependence on energy sources. Nuclear energy is one of important sources for long term sustainability in energy. GEN IV is successful with meet the new requirements after 2025. We should participate on this long term development effort

  15. Suárez on the Lower External Senses

    Czech Academy of Sciences Publication Activity Database

    Heider, Daniel

    2016-01-01

    Roč. 64, Suppl. (2016), s. 81-102 ISSN 0015-1831 Institutional support: RVO:67985955 Keywords : Suárez * Aristotle * the lower external senses * sensible species Subject RIV: AA - Philosophy ; Religion

  16. Solucions PLC obertes

    OpenAIRE

    López Llauradó, Oriol

    2006-01-01

    Treball que, després de revisar el concepte de PLC i d'exposar la necessitat de solucions obertes, defineix el concepte de PLC obert, basat en programari lliure i presenta alguns projectes interessants de PLC obert. Trabajo que, después de revisar el concepto de PLC y de exponer la necesidad de soluciones abiertas, define el concepto de PLC abierto, basado en el software libre y presenta algunos proyectos interesantes de PLC abierto. Study that, after looking at the concept of PLC and s...

  17. Transacsys PLC - Final Results

    CERN Multimedia

    2002-01-01

    Final results from Transacsys PLC. A subsidary of this company was set up to develop the CERN EDH system into a commercial product but incurred too much financial loss so the project was cancelled (1/2 page).

  18. The research of materials and water chemistry for supercritical water-cooled reactors in Research Centre Rez

    International Nuclear Information System (INIS)

    Zychova, Marketa; Fukac, Rostislav; Vsolak, Rudolf; Vojacek, Ales; Ruzickova, Mariana; Vonkova, Katerina

    2012-09-01

    Research Centre Rez (CVR) is R and D company based in the Czech Republic. It was established as the subsidiary of the Nuclear Research Institute Rez plc. One of the main activities of CVR is the research of materials and chemistry for the generation IV reactor systems - especially the supercritical water-cooled one. For these experiments is CVR equipped by a supercritical water loop (SCWL) and a supercritical water autoclave (SCWA) serving for research of material and Supercritical Water-cooled Reactor (SCWR) environment compatibility experiments. SCWL is a research facility designed to material, water chemistry, radiolysis and other testing in SCWR environment, SCWA serves for complementary and supporting experiments. SCWL consists of auxiliary circuits (ensuring the required parameters as temperature, pressure and chemical conditions in the irradiation channel, purification and measurements) and irradiation channel (where specimens are exposed to the SCWR environment). The design of the loop is based on many years of experience with loop design for various types of corrosion/water chemistry experiments. Designed conditions in the test area of SCWL are 600 deg. C and 25 MPa. SCWL was designed in 2008 within the High Performance Light Water Reactor Phase 2 project and built during 2008 and 2009. The trial operations were performed in 2010 and 2011 and were divided into three phases - the first phase to verify the functionality of auxiliary circuits of the loop, the second phase to verify the complete facility (auxiliary circuits and functional irradiation channel internals) and the third phase to verify the feasibility of corrosion tests with the complete equipment and specimens. All three trial operations were very successful - designed conditions and parameters were reached. (authors)

  19. In-pile cladding tests at NRI Rez and PIE capabilities and experience

    International Nuclear Information System (INIS)

    Zmitko, M.

    2002-01-01

    In-pile cladding corrosion test facilities and relevant post-irradiation capabilities at NRI Rez plc are overviewed. Basic information about the research rector LVR-15 and in-pile water loops is given. An experience in the field of Zr-alloy cladding corrosion testing and investigation of cladding corrosion behaviour is demonstrated for two experimental programmes conducted at NRI Rez in the past period. The first example describes results obtained at studying of corrosion behaviour of advanced Zr-alloys under PWR conditions with a special concern to a high lithium content and subcooled surface boiling. The second example informs about completion of the experimental programme supported by the IAEA which is focused on investigation of Zircaloy-4 cladding behaviour under VVER water chemistry, thermal-hydraulic and irradiation conditions with the main to obtain experimental data for an assessment of the Zircaloy-4 cladding compatibility with VVER conditions. (author)

  20. Santiago Pérez Triana

    Directory of Open Access Journals (Sweden)

    Sergio Elías Ortíz

    1958-09-01

    Full Text Available El nombre de Santiago Pérez Triana, aunque suena en el ambiente colombiano, algunas veces confundido con el de su ilustre padre, como el de un escritor notable y hasta como un orador de fama internacional, no se lo conoce, a nuestro juicio, en todo lo que vale y pesa, no digamos en el dominio de las letras castellanas, pero ni siquiera en su propia patria de origen, excepto en pequeño círculo intelectuales capacitado para valorar a conciencia los quilates de pensador de este hombre prodigioso que paseó su inteligencia sobre temas, diversos , con capacidad múltiple, e ilustración inagotable.

  1. Renewable Energy Zone (REZ) Transmission Planning Process

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Nathan [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2018-03-08

    A REZ is a geographical area that enables the development of profitable, cost-effective, grid-connected renewable energy (RE). The REZ Transmission Planning Process is a proactive approach to plan, approve, and build transmission infrastructure connecting REZs to the power system which helps to increase the share of solar, wind and other RE resources in the power system while maintaining reliability and economics, and focuses on large-scale wind and solar resources that can be developed in sufficient quantities to warrant transmission system expansion and upgrades.

  2. PLC Berbasis Mikrokontroler Atmega16 Sebagai Pengganti PLC Konvensional

    OpenAIRE

    Brama, Adi; Kurniawan, Syafi’i Agus; Djaohar, Mochammad

    2015-01-01

    Making the research aims to design and build a PLC (Programmable Logic Controller) that uses a microcontroller ATmega16 as the brain of the Micro PLC system. The process of manufacture, testing is done in simulation tools at Pustikom State University of Jakarta and completed the process in May-June 2015. PLC Microcontroller ATmega16-Based As Substitute Conventional PLC, and use the application on a laptop LDmicro to make instructions that form the ladder program to run the output in the form ...

  3. Reliability analysis of PLC safety equipment

    Energy Technology Data Exchange (ETDEWEB)

    Yu, J.; Kim, J. Y. [Chungnam Nat. Univ., Daejeon (Korea, Republic of)

    2006-06-15

    FMEA analysis for Nuclear Safety Grade PLC, failure rate prediction for nuclear safety grade PLC, sensitivity analysis for components failure rate of nuclear safety grade PLC, unavailability analysis support for nuclear safety system.

  4. Reliability analysis of PLC safety equipment

    International Nuclear Information System (INIS)

    Yu, J.; Kim, J. Y.

    2006-06-01

    FMEA analysis for Nuclear Safety Grade PLC, failure rate prediction for nuclear safety grade PLC, sensitivity analysis for components failure rate of nuclear safety grade PLC, unavailability analysis support for nuclear safety system

  5. Slovak Electric, Plc., 1997

    International Nuclear Information System (INIS)

    1997-06-01

    Slovenske elektrarne, a.s. (Slovak Electric, Plc.) was established on November 1, 1994 as one entity among new entities created as successors to the former Slovensky energeticky podnik. The subject activity is the generation of electric power, operation of transmission 220 kV and 400 kV systems, transit, import, export, and sales of electric power. Besides these activities the company deals with generation, distribution, and sales of heat. The company operates one nuclear power station, three thermal power plants, and thirty hydro power plants. One nuclear Power plant is under construction (state up tu June 1997). On this CD ROM next chapters are presented: (1) The structure of the company; (2) The production Units; (3) The economic power of the company; (4) The operation culture of the company; (5) The strategic plans of the company

  6. Slovak Electric, Plc., 1998

    International Nuclear Information System (INIS)

    1997-06-01

    Slovenske elektrarne, a.s. (Slovak Electric, Plc., abbrevation 'SE, a.s.') is the Slovak electricity generating utility, incorporated on November 1, 1994 as one of new companies formed from substantially all of the assets and a legal successor of Slovensky energeticky podnik, s.p., founded on January 1, 1969 in the form of SEP group. From its predecessor, Slovak Electric, Plc., took over generation of power, operation of 220 kV and 400 kV power system, transit, import, export, and sale of electricity. It is also involved in generation, distribution, and sale of heat. At present, SE's share of electriciry sales in the Slovak Republic is 88.47%. Electricity is delivered to three regional distribution companies and directly to several major industrial enterprises. SE, a.s. operates one nuclear power station, three thermal power plants, and 30 hydro power plants. The second nuclear power plant is under construction (state up tu June 1997) and SE is participating in the construction of two hydro power plants and one combined cycle power plant. The efforts of SE, s.a. focus on the generation of power and heat with minimal environmental impacts. Ecology is given priority in the SE, a.s. development programmes. SE's mission is to permanently satisfy customers' needs, for an acceptable price and with minimal environmental impact. On this CD ROM next chapters are presented: (1) The structure of the Company; (2) Production units; (3) The economic power of the Company; (4) The operation culture; (5) The strategic plans of the Company

  7. PLC VVVF Elevator Control System

    OpenAIRE

    Tang, Yujian; Gui, Tianyu

    2016-01-01

    The aim of the thesis is to introduce the PLC VVVF elevator and its control system. The thesis can be divided into three parts. The first part is about the overview of the lift: the kinds of the lift and the structure of the lift, it shows the knowledge about the components and the operating systems of the lift. The second part is about the PLC control system, it’s about the operations of the lift from the introduction about the hardware and software of the PLC control system. And the thi...

  8. Santiago Pérez: el dramaturgo

    Directory of Open Access Journals (Sweden)

    Marina Lamus Obregón

    2001-09-01

    Full Text Available La vida de Santiago Pérez como escritor de poemas y dramas fue muy corta y pertenece a sus años de juventud. En la edad madura esta incursión la consideró un pecado que lo hacía ruborizar: por ello compraba los libros editados por la generosidad de Lorenzo María Lleras y los quemaba. Y es que el "señorito" Santiago Pérez, alumno aventajado del colegio del Espíritu Santo y después profesor de literatura y filosofía, recibió también de su maestro, don Lorenzo María Lleras, influencia política, literaria y teatral.

  9. The PLC: a logical development

    OpenAIRE

    Walker, Mark; Bissell, Christopher; Monk, John

    2010-01-01

    Programmable Logic Controllers (PLCs) have been used to control industrial processes and equipment for over 40 years, having their first commercially recognised application in 1969. Since then there have been enormous changes in the design and application of PLCs, yet developments were evolutionary rather than radical. The flexibility of the PLC does not confine it to industrial use and it has been used for disparate non-industrial control applications . This article reviews the history, deve...

  10. Equity valuation of Tesco Plc.

    OpenAIRE

    Schmitz, Clemens

    2015-01-01

    This dissertation aimed to value the British retailer Tesco Plc. The objective was to determine a target price for the company and as a consequence determine a buy or sell recommendation when comparing it to the current market price. After the state of the art of literature regarding equity valuation has been assessed, the retail industry as well as Tesco have been analysed in more detail. Based on this, the retail business of Tesco has been valued using the Adjusted Present Va...

  11. El concepto de ser en Suárez. ?Unívoco o análogo?

    Czech Academy of Sciences Publication Activity Database

    Heider, Daniel

    2017-01-01

    Roč. 20, č. 40 (2017), s. 99-120 ISSN 0329-8930 Institutional support: RVO:67985955 Keywords : Suárez * concept of being * analogy * univocity Subject RIV: AA - Philosophy ; Religion OBOR OECD: Philosophy, History and Philosophy of science and technology http://studium.unsta.edu.ar/ojs/index.php/Studium/article/view/141/120

  12. Integration of the HVCM PLC into the PEFP Control System

    International Nuclear Information System (INIS)

    Song, Young Gi; Jang, Ji Ho; Kwon, Hyeok Jung; Cho, Yong Sub

    2011-01-01

    The High Voltage Converter Modulators (HVCM) for the 100-MeV accelerator was installed to drive the 20-MeV linac. There are two klystrons in the 20-MeV linac and one modulator was used to drive two klystrons simultaneously. The HVCM for the 20-MeV linac area in Korea Atomic Energy Research Institute (KAERI) is shown in Fig. 1. We were faced with the necessity of integrating Programmable Logic Controllers (PLCs) for the HVCM into the Proton Engineering Frontier Project (PEFP) control system. At the PEFP, Experimental Physics and Industrial Control System (EPICS) has become the most widely used solution for building control systems for 100MeV proton accelerator. The EPICS as a standard development tool is a distributed architecture that provides several solutions such as independent programming tools for operating system, operator interface tools, and archiving tools. Although EPICS is used directly in our control system, HVCMs were delivered with the Allen-Bradley ControlLogix as a PLC. The industrial PLC has been verified for safety systems. We need to connect an interface from our EPICS control system to AB-PLC using Ethernet/IP (ControlNet over Ethernet) protocol over Ethernet. In this paper, we will present the communication protocol and EPICS IOC installation for the EPICS based PLC control system

  13. Usage of Wifi Technology for PLC Programming

    Directory of Open Access Journals (Sweden)

    Jaromír ŠKUTA

    2009-06-01

    Full Text Available This contribution describes usage of WIFI technology for programming and parameterization of application in PLC. INSYS WLAN unit from the Microelectronics INSYS Corporation is the base of application. Software access point with using USB WIFI component WL167 is running in industrial PC. Particular PC clients are connecting into network infrastructure PLC by the help of this access point and INSYS WLAN unit. This connection allows configuring and uploading program into this PLC.

  14. El genio maligno de Suárez: Suárez y Descartes

    OpenAIRE

    Baciero Ruiz, Francisco Tadeo

    2007-01-01

    [ES] Tradicionalmente se ha considerado la filosofía cartesiana como un comienzo casi absoluto en la historia de la Filosofía. Sin embargo, las conocidas hipótesis del “genio maligno” y del “Dios engañador”, parte fundamental del artificio de la “duda metódica” en las Meditaciones metafísicas, se encuentran en la Disputación metafísica 9 de Suárez (la única mención de Suárez en todo Descartes, precisamente en las “Respuestas” a las Meditaciones). Parece claro, a partir de la correspondencia d...

  15. y Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    Socorro Arzaluz Solano

    2006-01-01

    Full Text Available El artículo aborda la aplicación del Programa Hábitat, diseñado por el Gobierno de Vicente Fox en 2002, en dos ciudades fronterizas: Nogales, Sonora, y Ciudad Juárez, Chihuahua. Se analiza la implantación del programa atendiendo sus particularidades, entre otros aspectos, se señalan los diferentes agentes que intervinieron en la ejecución de Hábitat, que pese a la claridad de las reglas, fueron diferentes en cada caso. También, las forma s de participación ciudadana promovidas por los gobiernos locales en ambos casos. Se presentan una reflexión final sobre el desarrollo de Hábitat en la frontera norte, y algunas recomendaciones.

  16. Fernando Cassinello Pérez, polyhedral architect

    Directory of Open Access Journals (Sweden)

    M. Centellas Soler

    2017-03-01

    Full Text Available The work of architect Fernando Cassinello Pérez (Almería, 1928-Madrid, 1975 rests on three pillars: architectural production focused on the design and construction of housing and hotel establishments, academic activity as Professor of Construction at the Escuela de Arquitectura de Madrid, and research concern developed in the IETcc of which he became director, and exercised as an author of books and research papers, as disseminator lecturer, speaker at major conferences or as an active member of international associations linked to construction with concrete. This article will review his prolific activity as polyhedral architect and will find interesting works that designed and built by relying on extensive contemporary and international architectural culture.

  17. Parameters Evaluation of PLC Dependability and Safety

    Directory of Open Access Journals (Sweden)

    Juraj Zdansky

    2006-01-01

    Full Text Available This paper is focused on evaluation of dependability and safety parameters of PLC (Programmable Logic Controller. Achievement of requested level of these parameters is an application assumption for using PLC in control of safety critical processes. Evaluation of these parameters can be made on the base of suitable model and it can be influenced by system architecture when necessary.

  18. Application of PLC in irradiation controlling system

    International Nuclear Information System (INIS)

    Qin Wenjuan; Lin Baoling; Wang Mingtao; Huang Daorong; Yao Qiuguo; Gao Weixiang; Yang Kun; Xue Changlin; Pu Jiangling

    2005-01-01

    To deal with the multiprogramming controlling system and computer gathering and printing measure data in Irradiation Station, we adopted Programmable Logic Controller (brief: PLC) instead of PCB to control Irradiation System. PLC improved the anti-jamming ability and debugged for convenience. (authors)

  19. A Classification of PLC Models and Applications

    NARCIS (Netherlands)

    Mader, Angelika H.; Boel, R.; Stremersch, G.

    In the past years there is an increasing interest in analysing PLC applications with formal methods. The first step to this end is to get formal models of PLC applications. Meanwhile, various models for PLCs have already been introduced in the literature. In our paper we discuss several

  20. Electromagnetic compatibility of PLC adapters for in-home/domestic networks

    Science.gov (United States)

    Potisk, Lukas; Hallon, Jozef; Orgon, Milos; Fujdiak, Radek

    2018-01-01

    The use of programable logic controllers (PLC) technology in electrical networks 230 V causes electromagnetic radiation that interferes with other electrical equipment connected to the network [1-4]. Therefore, this article describes the issues of electromagnetic compatibility (EMC) of new PLC adapters used in IP broadband services in a multi-user environment. The measurements of disturbing electromagnetic field originated in PLC adapters were made in a certified laboratory EMC (laboratory of electromagnetic compatibility) in the Institute of Electrical Engineering at Faculty of Electrical Engineering and Information Technology of the Slovak University of Technology in Bratislava. The measured spectra of the radiated electromagnetic field will be compared with the results obtained when testing older PLC modems [5].

  1. PLC control of 50 MW klystron modulators

    International Nuclear Information System (INIS)

    Shang Lei; Liu Gongfa; Chen Liping; Lu Yeming; Hong Jun; Zhang Yi; Zhao Feng

    2004-01-01

    Upgrade project of the 50 MW klystron modulators of Hefei Light Source (HLS) was firstly introduced. PLC control system of modulators was employed to replace the old control and monitor system, which was based on relay logic circuit and manual operation method. the PLC system becomes a sub system of the new EPICS control system of HLS. Constant-current, switch-mode and high voltage power supplies were adopted to replace the old 50 Hz power supplies. The technology of modulators was improved and operation was more reliable. The design method, hardware and software of PLC control of modulators were described and the performance was presented. (authors)

  2. Application of PLC to mine hoist

    International Nuclear Information System (INIS)

    Zheng Liquan

    2003-01-01

    This paper describes the reform of the hoister JMK 1.85 x 4 (B) with programmable logic controller (PLC), introduces hardware architecture, software architecture and interference protection measures, and presents the existential problems and suggestions for improvement

  3. Automated Formal Verification for PLC Control Systems

    CERN Multimedia

    Fernández Adiego, Borja

    2014-01-01

    Programmable Logic Controllers (PLCs) are widely used devices used in industrial control systems. Ensuring that the PLC software is compliant with its specification is a challenging task. Formal verification has become a recommended practice to ensure the correctness of the safety-critical software. However, these techniques are still not widely applied in industry due to the complexity of building formal models, which represent the system and the formalization of requirement specifications. We propose a general methodology to perform automated model checking of complex properties expressed in temporal logics (e.g. CTL, LTL) on PLC programs. This methodology is based on an Intermediate Model (IM), meant to transform PLC programs written in any of the languages described in the IEC 61131-3 standard (ST, IL, etc.) to different modeling languages of verification tools. This approach has been applied to CERN PLC programs validating the methodology.

  4. Levels of surface contamination with radioactive materials at workplaces of nuclear research centre at Rez

    International Nuclear Information System (INIS)

    Hoelgye, Z.; Nemcova, I.; Kasikova, M.; Popper, J.; Chysky, J.

    1983-01-01

    A hygiene supervision unit at workplaces of the nuclear Research Institute in Rez monitored on a long-term basis surface contamination with radioactive substances. Surface contamination was found at workplaces with open sources. Of the 4343 monitored places action levels were only exceeded in 13 cases. The obtained data were used for typifying workplaces with the highest level of surface contamination, to determine in certain instances the mechanism of the escape of radioactive substances from insulating facilities and to determine the rate of the spread of the radioactive substance into adjacent non-active workplaces. (author)

  5. Using of Finite Automation at Programming PLC

    Directory of Open Access Journals (Sweden)

    Karol Rastocny

    2004-01-01

    Full Text Available The paper is concerning with systematic advances at programming programmable logic controllers (PLC, which comes out from algebraic description of behaviour of sequential circuit, in the way of finite automaton. This kind of access is streamlining the work of a programmer and enabling to use formalisms in the of whole process of system development, that is from process of analysing demands to process of verification and validation created program. The paper considers about using of ladder diagram at programming PLC.

  6. Automated turn pike using PLC and SCADA

    Science.gov (United States)

    Silpa Sreedhar, P.; Aiswarya, P.; Kathirvelan, J.

    2017-11-01

    We propose a smart turnpike based on Programmable Logic Controller (PLC) and Supervisory Control and Data Acquisition Systems (SCADA) in this paper. In this work, the basic idea is to measure the weight of the vehicles and classify them according to its weight to the respective lanes. It is difficult for the turnpike people to monitor the whole process all the time. So, this PLC based diversion system can be implemented in turnpikes to reduce the difficulties. This method will work based on weight sensors (piezo-resistive) whose output will be fed to a PLC, which will control the vehicle diversion. Using SCADA software, the whole process can be monitored from a remote area. The algorithm developed in this successfully installed in real time system.

  7. Empirical P-L-C relations for delta Scuti stars

    International Nuclear Information System (INIS)

    Gupta, S.K.

    1978-01-01

    Separate P-L-C relations have been empirically derived by sampling the delta Scuti stars according to their pulsation modes. The results based on these relations have been compared with those estimated from the model based P-L-C relations and the other existing empirical P-L-C relations. It is found that a separate P-L-C relation for each pulsation mode provides a better correspondence with observations. (Auth.)

  8. Design and Implementation of an over Current Protection Laboratory for Electrical Power Transmission Systems Based on PLC Techniques

    Directory of Open Access Journals (Sweden)

    Hassaan Th. H. Thabet

    2018-01-01

    Full Text Available This paper describes a modern approach for the protection of transmission lines to ensure theirsafety against the faults occurred in power systems. Our approach uses a Programmable LogicController (PLC to realize a transmission line as an over current protection relay. A conditioningcircuit was designed, implemented and tested to collect data obtained from Hall Effect sensors which convert them to suitable analog values compatible with PLC's inputs. Results obtained by our PLC control system are very similar to those obtained by the conventional relays but more efficient. An Automatic Reclosing System (ARS for remote faults is also included in this approach. Our PLC control system and its algorithm are illustrated in this paper also. This approach is designed to be used in electrical networks laboratories as an educational unit in electrical departments of engineering collages and technical institutes; it can be used also in real power systems through suitable interfacing facilities.

  9. The application of PLC in 60Co container inspection system

    International Nuclear Information System (INIS)

    Huang Yibin; Xiang Xincheng

    2001-01-01

    The author discusses the interlock technique of 60 Co container inspection system, and introduces the hardware structure and program of interlock control system using PLC. Due to adopting PLC distributed control, the system works stably and reliably. The successful application of PLC in 60 Co container inspection system has some use for reference in nuclear technology field

  10. Amersham International plc. Report and Accounts 1995

    International Nuclear Information System (INIS)

    1995-01-01

    The Annual Report and Accounts for Amersham International plc for the year 1995 are presented. This leading health science company develops products, services and technologies based on its expertise in labelling and detection at the molecular level. Recent work in the fields of life science research, nuclear medicine and industrial quality and safety assurance are described. (UK)

  11. The Rise and Development of Physics in Cuba: An Interview with Hugo Pérez Rojas in May 2009

    Science.gov (United States)

    Baracca, Angelo

    Hugo Celso Pérez Rojas was born in 1938, and works as a senior researcher at the Institute of Cybernetics, Mathematics and Physics, at the Ministry of Science and Technology, Cuba. Pérez Rojas is emeritus member of the Academy of Sciences of Cuba, member of the Latin American Academy of Sciences and Fellow TWAS since 1994. He was one of the founders of the School of Physics in the University of Havana in 1962, and moved in 1971 to the Cuban Academy of Sciences. His national awards include the Rafael Maria Mendive and Carlos J. Finlay Medals. He was awarded in 2011 the National Prize in Physics from the Cuban Physical Society. His interests include quantum field theory and its applications to finite temperature problems in high-energy physics and condensed matter. Among these, Pérez Rojas has devoted special attention to quantum electrodynamics in matter and in vacuum in the presence of external fields, phase transitions in electroweak theory, relativistic quantum Hall effect, Bose-Einstein condensation in magnetic fields, and applications of physics to social sciences. He is interviewed here by Angelo Baracca in May 2009.

  12. Development of tools for automatic generation of PLC code

    OpenAIRE

    Koutli, Maria; Chasapis, Georgios; Rochez, Jacques

    2014-01-01

    This Master thesis was performed at CERN and more specifically in the EN-ICE-PLC section. The Thesis describes the integration of two PLC platforms, that are based on CODESYS development tool, to the CERN defined industrial framework, UNICOS. CODESYS is a development tool for PLC programming, based on IEC 61131-3 standard, and is adopted by many PLC manufacturers. The two PLC development environments are, the SoMachine from Schneider and the TwinCAT from Beckhoff. The two CODESYS compatible P...

  13. Consideraciones sobre Infortunios de Alonso Ramírez

    Directory of Open Access Journals (Sweden)

    Leonor Taiano

    2010-12-01

    Full Text Available This article attempts to provide new perspectives for approaching the study of Infortunios de Alonso Ramírez. Several researches about the text have given to Sigüenza y Góngora a character of strangeness to it, which would reduce him to the role of mere amanuensis, indicating that the discursive elaboration belongs to Ramirez. In view of that, I have performed a textual analysis, supported on the book's title and the final passage of the account, that I consider important elements that can offer a new perception on this issue. I base my research, additionally, on the study of its context of publication under the patronage of the New Spain viceroy, as well as the similarities of Infortunios de Alonso Ramírez with other contemporary texts.

  14. Vitoria y Suárez: el Derecho Internacional

    Directory of Open Access Journals (Sweden)

    Adolfo J. Sánchez Hidalgo

    2017-09-01

    Full Text Available Este artículo pretende mostrar la convivencia de dos estructuras de pensamiento en la escolástica española y, especialmente, en Suárez. Vitoria presenta una visión comunitaria del orden internacional y sus enseñanzas serán transmitidas a Suárez, quien, al contrario, presenta una visión societaria del orden internacional. Esta diferencia no es una casualidad, sino un auténtico cambio de paradigma en el sabio granadino, que hace de él un autor más próximo a la modernidad que a la tradición escolástica. Gracias a un estudio comparado mostraremos el punto de inflexión que supone Suárez en el tránsito hacia la modernidad y su idea de un orden mundial fundado en una sociedad de Estados.

  15. Intelligent Traffic Light Based on PLC Control

    Science.gov (United States)

    Mei, Lin; Zhang, Lijian; Wang, Lingling

    2017-11-01

    The traditional traffic light system with a fixed control mode and single control function is contradicted with the current traffic section. The traditional one has been unable to meet the functional requirements of the existing flexible traffic control system. This paper research and develop an intelligent traffic light called PLC control system. It uses PLC as control core, using a sensor module for receiving real-time information of vehicles, traffic control mode for information to select the traffic lights. Of which control mode is flexible and changeable, and it also set the countdown reminder to improve the effectiveness of traffic lights, which can realize the goal of intelligent traffic diversion, intelligent traffic diversion.

  16. Event notification system with a PLC

    International Nuclear Information System (INIS)

    Kawase, M.; Yoshikawa, Hiroshi; Sakaki, Hironao; Takahashi, Hiroki; Sako, Hiroyuki; Kamiya, Junichiro; Takayanagi, Tomohiro

    2004-01-01

    When an interlock occurs in the equipment, it is required to notify the upper rank control system of the Interlock and receive information for apparatus information in the upper rank control system as at high speed as possible. In the apparatus using FA-M3, it can respond to this by using the notice function of an event. This report shows the event notification system with a PLC based Kicker electromagnet power supply for 3GeV RCS. (author)

  17. PLC Based Automatic Multistoried Car Parking System

    OpenAIRE

    Swanand S .Vaze; Rohan S. Mithari

    2014-01-01

    This project work presents the study and design of PLC based Automatic Multistoried Car Parking System. Multistoried car parking is an arrangement which is used to park a large number of vehicles in least possible place. For making this arrangement in a real plan very high technological instruments are required. In this project a prototype of such a model is made. This prototype model is made for accommodating twelve cars at a time. Availability of the space for parking is detecte...

  18. PLC based control system for RAM assembly test facility

    International Nuclear Information System (INIS)

    Kulkarni, S.S.; Kumar, Vinaya; Chandra, Umesh

    1994-01-01

    The flexibility, expandability, ease of programming and diagnostic features makes the programmable logic controller (PLC) suitable for a variety of control applications in engineering system test facilities. A PLC based control system for RAM assembly test facility (RATF) and for testing the related hydraulic components is being developed and installed at BARC. This paper describes the approach taken for meeting the control requirements and illustrates the PLC software that has been developed. (author). 1 fig

  19. Practical application with plc in manipulation of a robotic arm

    Directory of Open Access Journals (Sweden)

    Cristian Barz

    2014-12-01

    Full Text Available This paper presents the use of a robotic arm PLC Siemens in order not using CNC commands. This is done by programming the PLC ladder diagram language that makes movement on the three axes of the arm by means of stepper motors. Required command console PLC is built with the help of a touch screen HMI Weintek. In the user interface are introduced distances and displacement speeds on the three axes.

  20. On Construction and Verification of PLC-Programs

    Directory of Open Access Journals (Sweden)

    E. V. Kuzmin

    2012-01-01

    Full Text Available We review some methods and approaches to programming discrete problems for Programmable Logic Controllers on the example of constructing PLC-programs for controling a code lock. For these approaches we evaluate the usability of the model checking method for the analysis of program correctness with respect to the automatic verification tool Cadence SMV. Some possible PLC-program vulnerabilities arising at a number approaches to programming of PLC are revealed.

  1. New developments in instrumentation for strain scanning in NPI Rez

    CERN Document Server

    Vrána, M; Lukás, P; Dubsky, J; Wagner, V

    2000-01-01

    Two high-resolution neutron diffractometers dedicated to strain /stress investigations in polycrystalline materials are routinely operated at the medium-power reactor LVR-15 in Rez and are also opened for external users. Good luminosity of the diffractometers and a sufficiently high-resolution (FWHM of the instrumental Delta d/d - profile can be less than 2*10/sup -3/ at d/sub hkl/=0.2 nm) permit investigations of both the macro- and microstrains in the sample gauge volumes of several cubic millimetres. Excellent properties and abilities of the neutron diffraction strain scanners are documented by some results of experimental measurements. (11 refs).

  2. Conversando sobre sexualidades Entrevista a Gloria Careaga Pérez

    OpenAIRE

    Fernández Carvajal, Doris

    2015-01-01

    Gloria Careaga Pérez: cuenta con una Maestría en Psicología Social, en la Universidad Nacional Autónoma de México (UNAM) y Licenciatura en Psicología, en el Instituto Tecnológico de Estudios Superiores de Occidente. Se desempeña como profesora de la Facultad de Psicología de Universidad Nacional Autónoma de México (UNAM). Es activista feminista, con una amplia participación en foros y conferencias internacionales en defensa de los derechos humanos de las personas sexualmente diversas. Integra...

  3. Power Line Communication (PLC) in Space - Current Status and Outlook

    Science.gov (United States)

    Wolf, J.

    2012-05-01

    The Power Line Communication (PLC) technology as known from various terrestrial applications, e.g. in building automation, in the automotive sector and on aircraft, appears to be a promising technology for the use on spacecraft. Starting from a critical overview on existing terrestrial PLC applications with their pros and cons, the paper gives a motivation for the introduction of the PLC technology on spacecraft, discusses the potential areas where it can be applied and is highlighting the potential problem areas. A short overview of on-going ESA PLC activities is provided and an outlook is given.

  4. Development of tools for automatic generation of PLC code

    CERN Document Server

    Koutli, Maria; Rochez, Jacques

    This Master thesis was performed at CERN and more specifically in the EN-ICE-PLC section. The Thesis describes the integration of two PLC platforms, that are based on CODESYS development tool, to the CERN defined industrial framework, UNICOS. CODESYS is a development tool for PLC programming, based on IEC 61131-3 standard, and is adopted by many PLC manufacturers. The two PLC development environments are, the SoMachine from Schneider and the TwinCAT from Beckhoff. The two CODESYS compatible PLCs, should be controlled by the SCADA system of Siemens, WinCC OA. The framework includes a library of Function Blocks (objects) for the PLC programs and a software for automatic generation of the PLC code based on this library, called UAB. The integration aimed to give a solution that is shared by both PLC platforms and was based on the PLCOpen XML scheme. The developed tools were demonstrated by creating a control application for both PLC environments and testing of the behavior of the code of the library.

  5. Pablo Rodríguez Pérez (1976 - 2016)

    CERN Multimedia

    2016-01-01

    It is with great sadness that we announce the sudden loss of Pablo Rodríguez Pérez, a physicist on the LHCb Experiment, who died in Manchester on 1st July 2016.   Pablo Rodríguez Pérez. Pablo obtained his Bachelor of Science in Physics at the Universidade de Santiago de Compostela (USC) in 2003, specialising in electronics before going on to work in industry. He joined the LHCb experiment in 2007, undertaking his Master of Science at USC on the optimisation of readout electronics for the Inner Tracker. He then continued his studies with a PhD, becoming the principal author for the experiment control system of the Silicon Tracker. After the commissioning of the LHCb experiment he moved his attention to the LHCb upgrade, performing the first investigation of prototypes for the upgrade of the vertex locator (VELO). Following his PhD from USC, Cum Laude, he joined the University of Manchester in 2013 to work further on the VELO Upgrade. Pablo took ...

  6. La potestad tributaria en Francisco Suárez

    Directory of Open Access Journals (Sweden)

    Luis Carlos Amezúa Amezúa

    2017-09-01

    Full Text Available Francisco Suárez es el teólogo más relevante de la escuela española de derecho natural o Escuela de Salamanca en sentido amplio. Según piensa, el derecho de imponer tributos justos reside en exclusiva en la autoridad suprema, sin necesitar el consentimiento de las Cortes. El Estado tiene ese poder de establecer leyes tributarias para asegurar la paz, el orden y el buen gobierno de la comunidad. Es el poder más importante entre todas las facultades propias de la soberanía, pero debe respetar las exigencias de un impuesto justo: además de la autoridad legítima, una causa justa y distribución proporcional. En este artículo, desarrollaremos la doctrina de Suárez, su interpretación acerca de la duda probable sobre la injusticia del impuesto, y su aceptación de los impuestos sobre el consumo. Todos estos razonamientos iban dirigidos a fortalecer al gobernante, que debe actuar dentro de un marco ético respetuoso con el bien común.

  7. Technical Potential Assessment for the Renewable Energy Zone (REZ) Process: A GIS-Based Approach

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Nathan [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Roberts, Billy J [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2018-04-05

    Geographic Information Systems (GIS)-based energy resource and technical potential assessments identify areas capable of supporting high levels of renewable energy (RE) development as part of a Renewable Energy Zone (REZ) Transmission Planning process. This document expands on the REZ Process to aid practitioners in conducting GIS-based RE resource and technical potential assessments. The REZ process is an approach to plan, approve, and build transmission infrastructure that connects REZs - geographic areas that have high-quality RE resources, suitable topography and land-use designations, and demonstrated developer interest - to the power system. The REZ process helps to increase the share of solar photovoltaic (PV), wind, and other resources while also maintaining reliability and economics.

  8. Heating systems with PLC and frequency control

    International Nuclear Information System (INIS)

    Abdallah, Salah; Abu-Mallouh, Riyad

    2008-01-01

    In this work, medium capacity controlled heating system is designed and constructed. The programming method of control of heating process is achieved by means of integrated programmable logic controller (PLC) and frequency inverter (FI). The PLC main function is to determine the required temperatures levels and the related time intervals of the heating hold time in the furnace. FI is used to control the dynamic change of temperature between various operating points. The designed system shows the capability for full control of temperature from zero to maximum for any required range of time in case of increasing or decreasing the temperature. All variables of the system will be changed gradually until reaching their needed working points. An experimental study was performed to investigate the effect of tempering temperature and tempering time on hardness and fatigue resistance of 0.4% carbon steel. It was found that increasing tempering temperature above 550 deg. C or tempering time decreases the hardness of the material. It was also found that there is a maximum number of cycles to which the specimen can survive what ever the applied load was

  9. Reliability Analysis for Safety Grade PLC(POSAFE-Q)

    International Nuclear Information System (INIS)

    Choi, Kyung Chul; Song, Seung Whan; Park, Gang Min; Hwang, Sung Jae

    2012-01-01

    Safety Grade PLC(Programmable Logic Controller), POSAFE-Q, was developed recently in accordance with nuclear regulatory and requirements. In this paper, describe reliability analysis for digital safety grade PLC (especially POSAFE-Q). Reliability analysis scope is Prediction, Calculation of MTBF (Mean Time Between Failure), FMEA (Failure Mode Effect Analysis), PFD (Probability of Failure on Demand). (author)

  10. Application of Kingview and PLC in friction durability test system

    Science.gov (United States)

    Gao, Yinhan; Cui, Jing; Yang, Kaiyu; Ke, Hui; Song, Bing

    2013-01-01

    Using PLC and Kingview software, a friction durability test system is designed. The overall program, hardware configuration, software structure and monitoring interface are described in detail. PLC ensures the stability of data acquisition, and the KingView software makes the HMI easy to manipulate. The practical application shows that the proposed system is cheap, economical and highly reliable.

  11. Application of PLC in the crane control system of MJTR

    International Nuclear Information System (INIS)

    Li Ziqiang; Ji Xiangdong

    2004-01-01

    The paper describes the application of PLC (Programmable Controller) in the control system of the bridge crane. PLC is the essential part of the control system, which uses some equipment such as frequency transformer and photoelectric switch to implement remote, manual and automatic centering functions. This paper emphasizes the programming of the automatic hole centering

  12. Full-automatic Special Drill Hydraulic System and PLC Control

    Directory of Open Access Journals (Sweden)

    Tian Xue Jun

    2016-01-01

    Full Text Available A hydraulic-driven and PLC full-automatic special drill is introduced, working principle of the hydraulic system and PLC control system are analyzed and designed, this equipment has the advantages of high efficiency, superior quality and low cost etc.

  13. Automatic production of Iodine-123 with PLC 135/U

    International Nuclear Information System (INIS)

    Moghaddam-Banaem, L.; Afarideh, H.

    2004-01-01

    In this project, the automatic system for production of Iodine-123 with PLC/135μ Siemens, which is designed and installed for the first time in Iran, is discussed. The PLC (Programmable Logic Controller) is used to control industrial processing, which is similar to a computer and consists of central processing unit and memory and Input/Output units. PLC receives input information from auxiliary units such as sensors, switches, etc. and software processes data in memory and then sends commands to output units such as relays, motors, etc.The target section in Iodine production consists of 8 stages. In order to be sure automation works properly the system can be operated both manually and automatically. First PLC checks Manual/Automatic switch and in the case of automatic mode, PLC runs the program in memory and processing is done automatically. For this purpose, PLC takes the value of pressures and temperatures from analog inputs and after processing them it sends commands to digital output to activate valves or vacuum pumps or heaters. In this paper the following subjects are discussed: 1) Production of Iodine 123 2) PLC structure and auxiliary boards 3) Sensors and actuators and their connection to PLC 4) Software flowchart

  14. Decommissioning of evaporation technology for processing liquid radioactive waste in UJV Rez, a. s

    International Nuclear Information System (INIS)

    Tous, M.; Otcovsky, T.; Podlaha, J.

    2015-01-01

    The UJV Rez, a. s. is the main leader in processing institutional radioactive waste (RAW) in the Czech Republic and the Waste Management Department has been established since the research reactor VVR-S (now LVR-15) was put in operation. Due to the large activities in nuclear research and engineering in the past, a big capacity of waste management technologies was needed. The low pressure compactor for volume reduction of solid RAW, as well as chemical pre-treatment technology of liquid RAW were installed and later the evaporation technology for effective processing the liquid RAW with the cementation and bituminization unit for final conditioning of concentrated liquid RAW were used. During the years of research reactor operation and research activities in UJV Rez, a. s. there were two installed evaporation technologies in row. After the latest evaporator lifetime, changes in liquid RAW production and together with higher decontamination factor requirements, this technology was decided to be decommissioned. The decommissioned evaporation technology was installed and put in operation in 1991. This technology was used for processing liquid aqueous RAW produced from internal research activities and of course for external producers and institutions (e.g. universities, medicine, research institutes, industry). The approved decommissioning plan was prepared and the licence for immediate decommissioning was obtained in 2012. Then the decommissioning project started. The preparing stages as dosimetric survey, expected material balance and of course initial decontamination activities were performed. Evaporation technology dismantling and processing the arising RAW were done by the internal staff of Waste Management Department. The total volume of produced RAW was 49,5 m 3 of RAW. The secondary liquid RAW (from decontamination) of amount 1,4 m 3 , contaminated sludge of amount 0,5 m 3 , solid RAW (construction steel) of amount 39,1 m 3 , solid compressible RAW (protective

  15. El Multiculturalismo Canadiense ante el Arte y los Testimonios de Constanza Camelo Suárez

    Directory of Open Access Journals (Sweden)

    Alexandre Beaudoin Duquette

    2017-04-01

    subway station in the city of Montreal, with the title Dilate or contract the universe. As part of this intervention, a group of immigrants guided by guide dogs walked blindfolded by the passports of their countries of origin and wore on their waist some apparatuses from which emanated random notes of the national anthems of their respective countries, as well as those of the Canadian anthem. Its action gives us several elements that allow us to question, to break or to relativize the stereotypes of the propagandistic discourse of the Canadian migratory institutions. This present work, it is precisely to establish a dissonant relationship between the performance and fragments of testimonies of Constanza Camelo Suárez and a "success story" that was published on the Internet site of the Canadian Citizenship and Immigration Ministry in 2011 and which is titled "María Aragón: a 10-year-old Canadian girl who makes a sensation on YouTube". This is done by analyzing the following sources of dissonance, understood as the relationship between incompatible information elements: Multiculturalism / transculturality, consensus / situational accidents, occupation of public space / mass space occupied, demonstration of strength / demonstration of vulnerability.  Key words: Latin American art, Latin American diaspora, Colombian diaspora, migration to Canada, Canadian multiculturalism, migratory propaganda.   Multiculturalismo Canadense perante a arte e os Testemunhos de Constanza Camelo Suárez Resumo Constanza Camelo Suarez é uma artista visual da Colômbia que vive na província do Quebec, no Canadá. Em 2008, ela realizou uma performance em uma grande estação de metrô da cidade de Montreal, que foi intitulada Expandir ou contrair o universo. Como parte dessa intervenção, um grupo de imigrantes guiado por cães-guia andou com os olhos vendados pelos passaportes de seus países de origem e usava em suas cinturas equipamentos que emanavam notas aleatórias dos hinos

  16. Académico Fernando Serpa Flórez

    Directory of Open Access Journals (Sweden)

    José Felix Patiño Restrepo

    2001-12-01

    Full Text Available

    Brillante, generoso, noble, escritor prolífico, un completo caballero, Fernando Serpa Flórez fue el prototipo del médico intelectual, humanista y humanitario. Su vocación por la salud pública lo llevó a ocupar altos cargos en el ramo: Secretario General del Ministerio de Salud, Secretario de Salud de Bogotá, Director del Instituto Nacional de Salud, Director del Ministerio de Salud y Ministro Encargado de Salud. Como Asesor de la Organización Mundial de la Salud, trabajó en Afganistán en el programa de erradicación de la viruela.
    Fue médico, jefe de Ecopetrol. Desde su elevada posición como Magistrado del Tribunal Nacional de Etica Médica, y con el ejemplo de su vida personal, como uno de los miembros más distinguidos de la Academia Nacional de Medicina, Fernando Serpa Flórez ocupa un lugar de particular distinción en la historia
    contemporánea de la medicina colombiana.

    Tuve el privilegio de su amistad por más de medio siglo, como condiscípulo en la Facultad de Medicina de la Universidad Nacional y luego a través de los años compartiendo afectos e intereses. Me acompaño con talento, lealtad y dedicación como Director del Ministerio cuando ocupé el cargo de Ministro en el Gobierno del eximio Presidente Guillermo León Valencia. Para quienes lo conocimos de cerca, este vástago de
    una brillante familia de médicos, sobrevivirá en nuestra memoria y en sus obras...

  17. Renewable Energy Zone (REZ) Transmission Planning Process: A Guidebook for Practitioners

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Nathan [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Flores-Espino, Francisco [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Hurlbut, David J. [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2017-09-05

    Achieving clean energy goals may require new investments in transmission, especially if planners anticipate economic growth and increased demand for electricity. The renewable energy zone (REZ) transmission planning process can help policymakers ensure their infrastructure investments achieve national goals in the most economical manner. Policymakers, planners, and system operators around the world have used variations of the REZ process to chart the expansion of their transmission networks and overcome the barriers of traditional transmission planning. This guidebook seeks to help power system planners, key decision makers, and stakeholders understand and use the REZ transmission planning process to integrate transmission expansion planning and renewable energy generation planning.

  18. Modeling a Consistent Behavior of PLC-Sensors

    Directory of Open Access Journals (Sweden)

    E. V. Kuzmin

    2014-01-01

    Full Text Available The article extends the cycle of papers dedicated to programming and verificatoin of PLC-programs by LTL-specification. This approach provides the availability of correctness analysis of PLC-programs by the model checking method.The model checking method needs to construct a finite model of a PLC program. For successful verification of required properties it is important to take into consideration that not all combinations of input signals from the sensors can occur while PLC works with a control object. This fact requires more advertence to the construction of the PLC-program model.In this paper we propose to describe a consistent behavior of sensors by three groups of LTL-formulas. They will affect the program model, approximating it to the actual behavior of the PLC program. The idea of LTL-requirements is shown by an example.A PLC program is a description of reactions on input signals from sensors, switches and buttons. In constructing a PLC-program model, the approach to modeling a consistent behavior of PLC sensors allows to focus on modeling precisely these reactions without an extension of the program model by additional structures for realization of a realistic behavior of sensors. The consistent behavior of sensors is taken into account only at the stage of checking a conformity of the programming model to required properties, i. e. a property satisfaction proof for the constructed model occurs with the condition that the model contains only such executions of the program that comply with the consistent behavior of sensors.

  19. Trends in Control Area of PLC Reliability and Safety Parameters

    Directory of Open Access Journals (Sweden)

    Juraj Zdansky

    2008-01-01

    Full Text Available Extension of the PLC application possibilities is closely related to increase of reliability and safety parameters. If the requirement of reliability and safety parameters will be suitable, the PLC could by implemented to specific applications such the safety-related processes control. The goal of this article is to show the way which producers are approaching to increase PLC`s reliability and safety parameters. The second goal is to analyze these parameters for range of present choice and describe the possibility how the reliability and safety parameters can be affected.

  20. Analysis of the PLC object model in the PF linac

    International Nuclear Information System (INIS)

    Abe, Isamu; Shirakawa, Akihiro; Nakahara, Kazuo; Tanaka, Masahiko

    1995-01-01

    Device controllers (front end) for the KEK PF Linac, which has been operated for more than ten years, had to be renewed, because there is no longer support from hardware manufacturer. To reduce maintenance costs, device controllers are planed to be replaced by PLC (Programmable Logic Controller). Investigations launched in the late 1994s for the PLC have carried out in order to make sure of the I/O stability and network possibilities. In this paper, the software for the PLC is discussed based on the OOP concept. (author)

  1. Applying Model Checking to Industrial-Sized PLC Programs

    CERN Document Server

    AUTHOR|(CDS)2079190; Darvas, Daniel; Blanco Vinuela, Enrique; Tournier, Jean-Charles; Bliudze, Simon; Blech, Jan Olaf; Gonzalez Suarez, Victor M

    2015-01-01

    Programmable logic controllers (PLCs) are embedded computers widely used in industrial control systems. Ensuring that a PLC software complies with its specification is a challenging task. Formal verification has become a recommended practice to ensure the correctness of safety-critical software but is still underused in industry due to the complexity of building and managing formal models of real applications. In this paper, we propose a general methodology to perform automated model checking of complex properties expressed in temporal logics (\\eg CTL, LTL) on PLC programs. This methodology is based on an intermediate model (IM), meant to transform PLC programs written in various standard languages (ST, SFC, etc.) to different modeling languages of verification tools. We present the syntax and semantics of the IM and the transformation rules of the ST and SFC languages to the nuXmv model checker passing through the intermediate model. Finally, two real cases studies of \\CERN PLC programs, written mainly in th...

  2. Programmable logic controller (PLC) for safety systems of nuclear plants

    International Nuclear Information System (INIS)

    Sen, S.K.; Karmakar, G.; Joseph, Jose; Patil, R.K.

    2002-01-01

    Full text: A programmable logic controller (PLC) has been developed by RCnD, BARC for use in the safety critical systems in nuclear power plants. This PLC uses qualified hardware developed in RCnD for use in NPP. The programming software conforms to IEC-61131 part 3. The application programming is done on function block diagram (FBD) editor and the FBD is automatically converted into code in high level language (C / C++). This feature makes the application easily decipherable and therefore easily subjected to reviews and other validation techniques. The key to make quality software for use in nuclear systems is to enforce various standards in the design and development of the software, something, which is not possible to do with a commercially available PLC. This PLC with its software completely transparent lends itself to rigorous verification and validation easily

  3. Voltage Control System of A DC Generator Using PLC

    OpenAIRE

    Subrata CHATTOPADHYAY; Sagarika PAL

    2008-01-01

    The voltage control system of a DC generator may suffer from high frequency oscillations without offset or low frequency oscillation with offset. A PID controller can eliminate both these errors. In the present paper, the voltage control system of a DC generator using a PLC based PID controller has been designed. Operation of PLC as a continuous controller has been described and the load characteristic of DC generator with and without controller have been determined experimentally and reporte...

  4. Towards Designing PLC Networks for Ubiquitous Connectivity in Enterprises

    OpenAIRE

    Ali, Kamran; Pefkianakis, Ioannis; Liu, Alex X.; Kim, Kyu-Han

    2016-01-01

    Powerline communication (PLC) provides inexpensive, secure and high speed network connectivity, by leveraging the existing power distribution networks inside the buildings. While PLC technology has the potential to improve connectivity and is considered a key enabler for sensing, control, and automation applications in enterprises, it has been mainly deployed for improving connectivity in homes. Deploying PLCs in enterprises is more challenging since the power distribution network is more com...

  5. El doctor Moreno Pérez y el anopheles crucians

    Directory of Open Access Journals (Sweden)

    Facultad de Medicina Revista

    1943-03-01

    Full Text Available En el año de 1933, con ocasión del conflicto del Amazonas, el doctor Ignacio Moreno·Pérez trabajó como médico de sanidad en la hoya del río Caquetá. Prosiguiendo sus estudios sobre paludismo y mosquitos transmisores a que dedicó gran parte de su meritoria vida, practicó una inspección entomológica de las cercanías de Florencia, capital de la comisaria del Caquetá, y encontró una raza en aguas salobres de Anopheles crucians. El hallazgo comunicado por él en el informe de 1934 de la comisión de paludismo del valle del Magdalena, (Estudios de Paludismo en el Valle del Magdalena, Departamento Nacional de Higiene, Sección de Sanidad Rural, Bogotá editorial de "Cromos", 1934, despertó mucho interés y fué objeto de controversias, porque conforme a los estudios de Howard, Dyar y Knab (1917, la localización del Anopheles crucians era casi hiperbórea, por encima del paralelo 25 en la América del Norte y solamente se había logrado ver además en Cuba y Jamaica.

  6. Introduction of hot cell facility in research center Rez - Poster

    International Nuclear Information System (INIS)

    Petrickova, A.; Srba, O.; Miklos, M.; Svoboda, P.

    2015-01-01

    This poster presents the hot cell facility which is being constructed as part of the SUSEN project at the Rez research center (Czech Republic). Within this project a new complex of 10 hot cells and one semi-hot cell will be built. There will be 8 gamma hot cells and 2 alpha hot cells. In each hot cell a hermetic, removable box made of stainless steel will home different type of devices. The hot cells and semi hot cell will be equipped with devices for processing samples (cutting, welding, drilling, machining) as well as equipment for testing (sample preparation area, stress testing machine, fatigue machine, electromechanical creep machine, high frequency resonance pulsator...) and equipment for studying material microstructure (nano-indenter with nano-scratch tester and scanning electron microscope). An autoclave with water loop, installed in a cell will allow mechanical testing in control environment of water, pressure and temperature. A scheme shows the equipment of each cell. This hot laboratory will be able to cover all the process to study radioactive materials: receiving the material, the preparation of the samples, mechanical testing and microstructure observation. Our hot cells will be close to the research nuclear reactor LVR-15 and new irradiation facility (high irradiation by cobalt source) is planned to be built within the SUSEN project

  7. Safety culture development in nuclear electric plc

    International Nuclear Information System (INIS)

    Gibson, G.P.; Low, M.B.J.

    1995-01-01

    Nuclear Electric plc (NE) has always given the highest priority to safety. However, past emphasis has been directed towards ensuring safety thorough engineering design and hazard control procedures. Whilst the company did achieve high safety standards, particularly with respect to accidents, it was recognized that further improvements could be obtained. Analysis of the safety performance across a wide range of industries showed that the key to improving safety performance lay in developing a strong safety culture within the company. Over the last five years, NE has made great strides to improve its safety culture. This has resulted in a considerable improvement in its measured safety performance indicators, such as the number of incidents at international nuclear event scale (INES) rating 1, the number of lost time accidents and the collective radiation dose. However, despite this success, the company is committed to further improvement and a means by which this process becomes self-sustaining. In this way the company will achieve its prime goal, to ''ensure the safety of people, plant and the environment''. The paper provides an overview of the development of safety culture in NE since its formation in November 1989. It describes the research and international developments that have influenced the company's understanding of safety culture, the key initiatives that the company has undertaken to enhance its safety culture and the future initiatives being considered to ensure continual improvement. (author). 5 refs, 2 figs, 2 tabs

  8. Silencing of the tomato phosphatidylinositol-phospholipase C2 (SlPLC2) reduces plant susceptibility to Botrytis cinerea

    NARCIS (Netherlands)

    Gonorazky, Gabriela; Guzzo, María Carla; Abd-El-Haliem, Ahmed M.; Joosten, Matthieu H.A.J.; Laxalt, Ana María

    2016-01-01

    The tomato [Solanum lycopersicum (Sl)] phosphatidylinositol-phospholipase C (PI-PLC) gene family is composed of six members, named SlPLC1 to SlPLC6, differentially regulated on pathogen attack. We have previously shown that the fungal elicitor xylanase induces a raise of SlPLC2 and SlPLC5

  9. Users` demands narrow PLC-DCS gap

    Energy Technology Data Exchange (ETDEWEB)

    La Fauci, J.

    1997-02-01

    Supervisory control and data acquisition (SCADA) operator interface (OI) software has propelled programmable logic controllers (PLCs) into areas where they can successfully compete with distributed control systems (DCSs) for many control applications. As a result, automation engineers are struggling to develop guidelines to help determine which is best for batch operations and other applications. There is no clear answer to this issue. There are, however, decision tools such as Kepner-Tregoe (K-T) that can be applied by engineers as a structured approach to decision analysis and system selection. Other factors such as business environment, pressure to reduce project cost, validation, and predicting new technology direction all play a critical role for engineers in choosing between a PLC- or DCS-based control system. Higher-level business issues, however, are seldom considered by engineers during control system selection. Engineers should try to better understand their company`s business objectives and mission statement and how company business direction may affect control system selection. For instance, the pharmaceutical industry can be broken up into the following five basic application groups: bulk chemicals, finishing, biotech, pilot plant, and utilities. Each has a unique set of functional and process-control requirements. Understanding needs and differences of these five basic application groups and applying the optimum control system solution will place the company in a more competitive position. A financial analysis should be one of the first steps in the control system evaluation process. This may include early agreement of contractual terms and conditions as well as a nondisclosure agreement. Other financial considerations may include requesting a financial report on the control system manufacturer or systems integrator that will be performing the work to determine its financial stability. 3 figs.

  10. Efficient Implementation of a Symbol Timing Estimator for Broadband PLC.

    Science.gov (United States)

    Nombela, Francisco; García, Enrique; Mateos, Raúl; Hernández, Álvaro

    2015-08-21

    Broadband Power Line Communications (PLC) have taken advantage of the research advances in multi-carrier modulations to mitigate frequency selective fading, and their adoption opens up a myriad of applications in the field of sensory and automation systems, multimedia connectivity or smart spaces. Nonetheless, the use of these multi-carrier modulations, such as Wavelet-OFDM, requires a highly accurate symbol timing estimation for reliably recovering of transmitted data. Furthermore, the PLC channel presents some particularities that prevent the direct use of previous synchronization algorithms proposed in wireless communication systems. Therefore more research effort should be involved in the design and implementation of novel and robust synchronization algorithms for PLC, thus enabling real-time synchronization. This paper proposes a symbol timing estimator for broadband PLC based on cross-correlation with multilevel complementary sequences or Zadoff-Chu sequences and its efficient implementation in a FPGA; the obtained results show a 90% of success rate in symbol timing estimation for a certain PLC channel model and a reduced resource consumption for its implementation in a Xilinx Kyntex FPGA.

  11. Efficient Implementation of a Symbol Timing Estimator for Broadband PLC

    Directory of Open Access Journals (Sweden)

    Francisco Nombela

    2015-08-01

    Full Text Available Broadband Power Line Communications (PLC have taken advantage of the research advances in multi-carrier modulations to mitigate frequency selective fading, and their adoption opens up a myriad of applications in the field of sensory and automation systems, multimedia connectivity or smart spaces. Nonetheless, the use of these multi-carrier modulations, such as Wavelet-OFDM, requires a highly accurate symbol timing estimation for reliably recovering of transmitted data. Furthermore, the PLC channel presents some particularities that prevent the direct use of previous synchronization algorithms proposed in wireless communication systems. Therefore more research effort should be involved in the design and implementation of novel and robust synchronization algorithms for PLC, thus enabling real-time synchronization. This paper proposes a symbol timing estimator for broadband PLC based on cross-correlation with multilevel complementary sequences or Zadoff-Chu sequences and its efficient implementation in a FPGA; the obtained results show a 90% of success rate in symbol timing estimation for a certain PLC channel model and a reduced resource consumption for its implementation in a Xilinx Kyntex FPGA.

  12. Prototype of Automated PLC Model Checking Using Continuous Integration Tools

    CERN Document Server

    Lettrich, Michael

    2015-01-01

    To deal with the complexity of operating and supervising large scale industrial installations at CERN, often Programmable Logic Controllers (PLCs) are used. A failure in these control systems can cause a disaster in terms of economic loses, environmental damages or human losses. Therefore the requirements to software quality are very high. To provide PLC developers with a way to verify proper functionality against requirements, a Java tool named PLCverif has been developed which encapsulates and thus simplifies the use of third party model checkers. One of our goals in this project is to integrate PLCverif in development process of PLC programs. When the developer changes the program, all the requirements should be verified again, as a change on the code can produce collateral effects and violate one or more requirements. For that reason, PLCverif has been extended to work with Jenkins CI in order to trigger automatically the verication cases when the developer changes the PLC program. This prototype has been...

  13. Development of radioactive source scanner based on PLC

    International Nuclear Information System (INIS)

    Yang Guogui; Gao Xiang; Guo Hongli

    2013-01-01

    The radioactive radial uniformity of 68 Ge line radioactive sources is a critical quality parameter. The radioactive source scanner with linear scanning function is developed by making use of high-speed pulse counters, high-speed pulse output ports, and the powerful instruction system of Siemens S7-200 series programmable logic controller (PLC). A computer used as a host computer of the instrument communicate with. the PLC by point to point interface (PPI) protocol, The instrument with functions of data collection, transmission, displaying, saving, motion control and instrument parameter settings, can be used to measure the radioactive radial uniformity and total activity of line radioactive source. The advantages of Using the PLC to develop nuclear instrumentation are development speed, strong anti-interference ability, and low-cost. This paper mainly describes the control system implementation and feature of the instrument. (authors)

  14. The review of the reactor physics experiments carried out on the LR-0 research reactor NRI Rez plc for reactors of the VVER type

    International Nuclear Information System (INIS)

    Hudec, Frantisek; Jansky, Bohumil; Juricek, Vlastimil; Mikus, Jan; Novak, Evzen; Osmera, Bohumil; Posta, Severin; Rypar, Vojtech; Svadlenkova, Marie

    2010-01-01

    LR-0 is an experimental zero power reactor mainly used for the determination of the neutron-physical characteristics of WWER and PWR type reactor lattices and shielding with UO2 or MOX fuel. Its major assets include capability to design and operate multizone cores, i.e. substituted cores, with an inner inserted part in hexagonal or square geometry (driven by LR-0 standard assemblies); Standard and special supporting plates for mock-up experiments; special supporting plates, which enables the triangular symmetrical assembly arrangement with an arbitrary pitch; Modeling neutron field parameters of power reactors; Wide range benchmarking possibilities, with high reproducibility of the benchmark design parameters; Wide range of measurement techniques including equipment and experienced personal; Flexible rearrangements of the core. The main experiments included: Pin wise flux distribution measurements; VVER-440 and VVER-1000 mock-ups; compact spent fuel storage; space kinetics experiment; core parameters experimental determination; experiment with new design fuel assembly; WWER-440 control assembly influence; and burnable absorber study. International research projects are also described. (P.A.)

  15. Validation of fuel performance codes at the NRI Rez plc for Temelin and Dukovany NPPs fuel safety evaluations and operation support

    International Nuclear Information System (INIS)

    Valach, M.; Hejna, J.; Zymak, J.

    2003-05-01

    The report summarises the first phase of the FUMEX II related work performed in the period September 2002 - May 2003. An inventory of the PIN and FRAS codes family used and developed during previous years was made in light of their applicability (validity) in the domain of high burn-up and FUMEX II Project Experimental database. KOLA data were chosen as appropriate for the first step of both codes fixing (both tuned for VVER fuel originally). The modern requirements, expressed by adaptation of the UO 2 conductivity degradation from OECD HRP, RIM and FGR (athermal) modelling implementation into the PIN code and a diffusion FGR model development planned for embedding, into this code allow us to reasonably shadow or keep tight contact with top quality models as TRANSURANUS, COPERNIC, CYRANO, FEMAXI, FRAPCON3 or ENIGMA. Testing and validation runs with prepared input KOLA deck were made. FUMEX II exercise propose LOCA and RIA like transients, so we started development of those two codes coupling - denominated as PIN2FRAS code. Principles of the interface were tested, benchmarking on tentative RIA pulses on highly burned KOLA fuel are presented as the first achievement from our work. (author)

  16. The language of human law in the thought of Francisco Suárez

    Directory of Open Access Journals (Sweden)

    Fernando Centenera Sánchez-Seco

    2018-05-01

    Full Text Available The subject of this article is the language of human law in the thought of Francisco Suárez. Its chief focus is on the Treatise on Laws and on God the Lawgiver and its views on the prescriptive nature of legislative language, written and spoken language, the lexical-semantic level, and linguistic clarity from the viewpoints of convenience, the essence of the law and justice. The issues Suárez deals with in relation to these points have continued to attract attention up to the present day, and a reading of the Treatise confirms the impression that some of them are still valid. Accordingly, as well as setting out, describing and offering a guide to understanding Suárez ideas, the article offers a comparative and contemplative analysis of them, without forgetting that their author belonged to the early modern period.

  17. Voltage Control System of A DC Generator Using PLC

    Directory of Open Access Journals (Sweden)

    Subrata CHATTOPADHYAY

    2008-06-01

    Full Text Available The voltage control system of a DC generator may suffer from high frequency oscillations without offset or low frequency oscillation with offset. A PID controller can eliminate both these errors. In the present paper, the voltage control system of a DC generator using a PLC based PID controller has been designed. Operation of PLC as a continuous controller has been described and the load characteristic of DC generator with and without controller have been determined experimentally and reported in this paper.

  18. β Absorption dust concentration monitor system based on the PLC

    International Nuclear Information System (INIS)

    Lian Dexing; Zhou Xiuliang; Liu Liyan; Li Zonglun; Cao Guanghui; Mao Wanchong

    2011-01-01

    To provide an on-line automatic system for dust concentration monitor is the purpose of this design.The system based on β-ray-absorption-method,employing PLC (Programmable Logic Controller) control technology, is presented. The user input parameter setup,the data acquisition and processing, and the communication with computer can be effectively regulated using the advanced PLC control technology. It has the features of high reliability, easy operation and easy maintenance, and the ability to monitor remotely. Measurement range: 0.1-1500 mg/m 3 , Accuracy: ±9%. The structure,working principle, electric circuit and software development of the system are introduced in detail. (authors)

  19. Transforming PLC Programs into Formal Models for Verification Purposes

    CERN Document Server

    Darvas, D; Blanco, E

    2013-01-01

    Most of CERN’s industrial installations rely on PLC-based (Programmable Logic Controller) control systems developed using the UNICOS framework. This framework contains common, reusable program modules and their correctness is a high priority. Testing is already applied to find errors, but this method has limitations. In this work an approach is proposed to transform automatically PLC programs into formal models, with the goal of applying formal verification to ensure their correctness. We target model checking which is a precise, mathematical-based method to check formalized requirements automatically against the system.

  20. Model-based automated testing of critical PLC programs.

    CERN Document Server

    Fernández Adiego, B; Tournier, J-C; González Suárez, V M; Bliudze, S

    2014-01-01

    Testing of critical PLC (Programmable Logic Controller) programs remains a challenging task for control system engineers as it can rarely be automated. This paper proposes a model based approach which uses the BIP (Behavior, Interactions and Priorities) framework to perform automated testing of PLC programs developed with the UNICOS (UNified Industrial COntrol System) framework. This paper defines the translation procedure and rules from UNICOS to BIP which can be fully automated in order to hide the complexity of the underlying model from the control engineers. The approach is illustrated and validated through the study of a water treatment process.

  1. Development and Application of POSAFE-Q PLC Platform

    International Nuclear Information System (INIS)

    Lee, MyeongKyun; Song, SeungWhan; Yun, DongHwa

    2012-01-01

    The Safety-grade Programmable Logic Controller (PLC) Platform named POSAFE-Q was developed so that it meets the requirements of the Safety Class 1E, Quality Class 1, and Seismic Category I. Development process of the POSAFE-Q software developed in accordance with software life cycles. The POSAFE-Q meets safety and suitability for design are based on digital I and C laws, guidelines and technical standards. The POSAFE-Q PLC obtained approval for Topical Report from the Nuclear Safety and Security Commission in Korea. (author)

  2. SIMÓN TALAVERA SUÁREZ [Material gráfico

    OpenAIRE

    Anonymous

    2002-01-01

    RETRATO DE SIMÓN TALAVERA SUÁREZ CON UN ENJAMBRE DE ABEJAS, EN CORRALILLOS. SIMÓN TALAVERA SUÁREZ LLEVA DESDE LOS 7 AÑOS EN EL OFICIO DE APICULTOR, SE TRATA DE UNA TRADICIÓN FAMILIAR. LA APICULTURA O EL CULTIVO DE ABEJAS ES UNA ACTIVIDAD AGROPECUARIA ORIENTADA A LA CRIANZA ABEJAS Y A PRESTARLES LOS CUIDADOS NECESARIOS CON EL OBJETO DE OBTENER LOS PRODUCTOS QUE SON CAPACES DE ELABORAR Y RECOLECTAR. Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte. Subdirección Gener...

  3. Division of Integrity and Materials

    International Nuclear Information System (INIS)

    Zdarek, J.

    1995-01-01

    The organization structure is described of the Division of Integrity and Materials, Institute of Nuclear Research plc, Rez, and the main fields of their activities given. Listed are the major research projects of the Division in 1994. (Z.S.)

  4. 77 FR 6668 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-02-09

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... all Rolls-Royce plc RB211-Trent 500 series turbofan engines. This AD requires a one-time inspection of... RB211- Trent 560A2-61 turbofan engines that have not complied with Rolls- Royce plc Service Bulletin No...

  5. 78 FR 11976 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-02-21

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for all Rolls-Royce plc (RR) RB211-524 series turbofan engines. That AD currently requires...-16724 (76 FR 40217, July 8, 2011), for all RR plc RB211-524 series turbofan engines. That AD required...

  6. PowerGen plc report and accounts 1994

    International Nuclear Information System (INIS)

    1994-01-01

    The annual report and accounts of PowerGen plc for the year 1994 are presented. Financial highlights are quoted, followed by the Chairman's statement, reviews by the Chief Executive and Financial Directors, reports by the Auditors and Directors, balance sheets and details of the consolidated profit and loss account and principal accounting policies. A four year summary and shareholder information are included. (UK)

  7. Multiprog Virtual Laboratory Applied to PLC Programming Learning

    Science.gov (United States)

    Shyr, Wen-Jye

    2010-01-01

    This study develops a Multiprog virtual laboratory for a mechatronics education designed to teach how to programme a programmable logic controller (PLC). The study was carried out with 34 students in the Department of Industry Education and Technology at National Changhua University of Education in Taiwan. In total, 17 students were assigned to…

  8. Sindicatos en Ciudad Juárez: Historia y debilidad sindical

    Directory of Open Access Journals (Sweden)

    Cirila Quintero Ramírez

    1996-01-01

    Full Text Available This work analyzes the evolution of the labor unions in Ciudad Juárez for three decades of the maquiladora industry. Postulates as a main idea, the existence of a weakening of the labor unions in the rnaquiladoras as a consequence of two central factors: the absence of a labor union trajectory in the region, and the persistence of economical activities in Ciudad Juárez that depend on the American economy, and the existence of a factionalism inter and intralabor union in the main workers associations in the city, that has permitted the defeal of not onIy the official movements, but the independent ones too. The weakening ol the labor union. has also conducted to a policy ol apathy, conformity, and ol high colaboration with the investors, that has tumed the labor unions in Ciudad Juárez into an expression of subordinated labor unions, that legitimates their perrnanency in the rnaquiladoras are mostly to their link with investors than with their members. This article allows us to see two future sceneries in the city ol Ciudad Juárez: the accentuation of this kind of behavior in labor unions, or the disappearance ol labor unions in the maquiladoras.

  9. Úzkopásmová PLC komunikace se standardy G3-PLC, PRIME a IEEE-1901.2

    OpenAIRE

    Skrášek, Tomáš

    2015-01-01

    Diplomová práce pojednává o standardech úzkopásmové PLC komunikace. V teoretické části jsou popsány všechny dostupné OFDM standardy, mezi něž patří G3-PLC, PRIME, IEEE-1901.2 a G.hnem. Praktická část se zabývá standardy PRIME a G3-PLC. Dále je také porovnán systém OFDM se systémem komunikace na jedné nosné frekvenci v prostředí s reálným rušením. V poslední části je popsán návrh dvou firmware pro PLC modemy Texas Instruments TMDSPLCKIT-V3, které umožňují UART komunikaci a dálkový sběr dat. K ...

  10. Remote handling equipment for laboratory research of fuel reprocessing in Nuclear Research Institute at Rez

    International Nuclear Information System (INIS)

    Fidler, J.; Novy, P.; Kyrs, M.

    1985-04-01

    Laboratory installations were developed for two nuclear fuel reprocessing methods, viz., the solvent extraction process and the fluoride volatility process. The apparatus for solvent extraction reprocessing consists of a pneumatically driven rod-chopper, a dissolver, mixer-settler extractors, an automatic fire extinguishing device and other components and it was tested using irradiated uranium. The technological line for the fluoride volatility process consists of a fluorimater, condensers, sorption columns with NaF pellets and a distillation column for the separation of volatile fluorides from UF 6 . The line has not yet been tested using irradiated fuel. Some features of the remote handling equipment of both installations are briefly described. (author)

  11. LA GESTIÓN INTEGRAL DE LOS RESIDUOS SÓLIDOS URBANOS EN JUÁREZ: LECCIONES INNOVADORAS PARA OTROS MUNICIPIOS

    Directory of Open Access Journals (Sweden)

    Ismael Couto Benítez

    2012-06-01

    Full Text Available El arribo de la iniciativa privada a la gestión integral de residuos sólidos urbanos en el municipio de Ciudad Juárez promovió un nuevo mecanismo institucional para operar un servicio público que ha cumplido las expectativas de mejora y eficiencia establecidos por los indicadores de gerenciamiento para el servicio de limpieza pública, además de solventar el problema de la falta de presupuesto para el mantenimiento y renovación del equipo de recolección de basura. Este documento aborda, a partir de una revisión histórica de datos y entrevistas con los directivos de la empresa PASA y los funcionarios del gobierno municipal de Juárez, el modelo en que se gestó y la forma en que opera el servicio de limpia en uno de los cinco municipios más poblados de México. A partir de esta experiencia, se asumen nuevos retos para la administración de los servicios públicos municipales a partir de prácticas de negociación, calidad en el servicio, rendición de cuentas y control gubernamental.   ABSTRACT The integration of the private sector into comprehensive management of urban solid waste in the municipality of Ciudad Juárez shows a new institutional mechanism to operate a public service that has fulfilled the improvement and efficiency expectations established by managerial indicators for public sanitation services, in addition to overcoming the lack of budget provision for maintenance and renewal of waste collection equipment. By means of a historical revision of data as well as interviews with both executive directors of a garbage-collecting firm called PASA and officials of the municipal government of Ciudad Juárez, this document approaches the waste collection model that was created as well as the way in which the garbage collection service operates in one of the five most populated municipalities in Mexico. Based on this experience, the management of municipal public services assumed new challenges by using negotiation practices

  12. Realization of PLC to the Variable Frequency Speed Regulation System of Mine Local Ventilator based on RS-485 Communication

    Science.gov (United States)

    Ma, Kai; Li, Jian; Yun, Yichong

    2018-03-01

    The article first introduces the merits of serial communication in the PLC to the variable frequency speed regulation system of mine local ventilator, and then sets up a hardware application development platform of PLC and inverter based on RS-485 communication technology, next presents communication initialization of the PLC and Inverter. Finally according to the control requirements, PLC send run operation & monitoring instruction to Inverter, realizes the serial communication control between the PLC and Inverter.

  13. Development of the safety PLC for plant protection system

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Chang Hwoi; Lee, Dong Young [Korea Atomic Energy Research Institute, Taejeon (Korea, Republic of)

    2005-11-15

    The safety PLC (POSAFE-Q) is developing in the Korea Nuclear Instrumentation and Control System (KNICS) R and D project. The PLC satisfies Safety Class 1E, Quality Class 1, and Seismic Category I. The software such as RTOS and firmware are developed according to safety critical software life cycle. Especially, the formal method is applied to design SRS (Software Requirement Spec.) and SDS (Software Design Specification.) for error-free. The developed software according to software life cycle is verified by independent software V and V team. The overall response time from an input to the outputs shall be 50ms or less. The prototype for the POSAFE-Q was developed and functional testing and equipment qualification tests have been underway.

  14. Bringing Automated Formal Verification to PLC Program Development

    CERN Document Server

    Fernández Adiego, Borja; Blanco Viñuela, Enrique

    Automation is the field of engineering that deals with the development of control systems for operating systems such as industrial processes, railways, machinery or aircraft without human intervention. In most of the cases, a failure in these control systems can cause a disaster in terms of economic losses, environmental damages or human losses. For that reason, providing safe, reliable and robust control systems is a first priority goal for control engineers. Ideally, control engineers should be able to guarantee that both software and hardware fulfill the design requirements. This is an enormous challenge in which industry and academia have been working and making progresses in the last decades. This thesis focuses on one particular type of control systems that operates industrial processes, the PLC (Programmable Logic Controller) - based control systems. Moreover it targets one of the main challenges for these systems, guaranteeing that PLC programs are compliant with their specifications. Traditionally ...

  15. British Nuclear Fuels plc: report and accounts 1987-88

    International Nuclear Information System (INIS)

    1989-01-01

    The Energy Committee has considered the report and accounts of BNFL (British Nuclear Fuels PLC) for the year 1987-88. The report looks at BNFL as a government owned PLC - its activities and financial performance. Various questions are raised about the underlying financial position justifying the optimism portrayed in the report and accounts. The impact of cost-plus contracts on UK customers is examined. The economics of THORP (Thermal Oxide Reprocessing Plant) are also examined especially as the escalation in the cost of constructing THORP means that a substantial loss will be made in the reprocessing of waste for which contracts were signed in the late 1960s or early 1970s. The main conclusions of the report are summarized. One of these is that the UK must be cautious about becoming a repository of foreign nuclear waste. Other specific recommendations are made - some about the decommissioning of BNFL plant. (UK)

  16. Implementation of PID autotuning procedure in PLC controller

    Directory of Open Access Journals (Sweden)

    Daniun Marcin

    2017-01-01

    Full Text Available In this paper, we present the automatic PID tuning procedure based on the Method of Moments and AMIGO tuning rules. The advantage of the Method of Moments is that the time constant and transport delay are estimated at the areas rather than on the individual points. This results in high resistance to the measurement noises. The sensitivity to measurement noises is a serious problem in other autotuning methods. The second advantage of this method is that it approximates plant during identification process to first order model with time delay. We combined the Method of Moments with the AMIGO tuning rules and implemented this combination as a stand-alone autotuning procedure in Siemens S7-1200 PLC controller. Next, we compared this method with two built-in PID autotuning procedures which were available in Siemens S7-1200 PLC controller. The procedure was tested for three types of plant models: with lag-dominated, balanced, and delay-dominated dynamics. We simulated the plants on a PC in Matlab R2013a. The connection between the PC and PLC was maintained through a National Instruments data acquisition board, NI PCI-6229. We conducted tests for step change in the set point, trajectory tracking, and load disturbances. To assess control quality, we used IAE index. We limited our research to PI algorithm. The results prove that proposed method was better than two built-in tuning methods provided by Siemens, oscillating between a few and even a dozen percent in most cases. The proposed method is universal and can be implemented in any PLC controller.

  17. Performance Evaluation of CE-OFDM in PLC Channel

    OpenAIRE

    El ghzaoui Mohammed, Belkadid Jamal, Benbassou Ali

    2011-01-01

    One major drawback associated with an OFDM system is that the transmitter’soutput signal may have a high peak-to-average ratio (PAPR). High levels of PARmay be a limiting factor for power line communication (PLC) where regulatorybodies have fixed the maximum amount of transmit power. To overcome thisproblem, many approaches have been presented in the literature. One potentialsolution for reducing the peak-to-average power ratio (PAPR) in an OFDMsystem is to utilize a constant envelope OFDM (C...

  18. Fifth Baltic Sea pollution load compilation (PLC-5)

    Energy Technology Data Exchange (ETDEWEB)

    Knuuttila, S.; Svendsen, L. M.; Staaf, H.; Kotilainen, P.; Boutrup, S.; Pyhala, M.; Durkin, M.

    2011-07-01

    This report includes the main results from the Fifth Pollution Load Compilation abbreviated PLC-5. It includes quantified annual waterborne total loads (from rivers, unmonitored and coastal areas as well as direct point and diffuse sources discharging directly to the Baltic Sea) from 1994 to 2008 to provide a basis for evaluating any decreasing (or increasing) trends in the total waterborne inputs to the Baltic Sea. Chapter 1 contains the objectives of PLC and the framework on classification of inputs and sources. Chapter 2 includes a short description of the Baltic Sea catchment area, while the methods for quantification and analysis together with quality assurance topics are briefly introduced in Chapter 3. More detailed information on methodologies is presented in the PLC-5 guidelines (HELCOM 2006). Chapter 4 reports the total inputs to the Baltic Sea of nutrients and selected heavy metals. Furthermore, the results of the quatification of discharges and losses of nitrogen and phosphorus from point and diffuse sources into inland surface waters within the Baltic Sea catchment area (source-oriented approach or gross loads) as well as the total load to the maritime area (load-oriented approarch or net loads) in 2006 are shown. Typically, results are presented by country and by main Baltic Sea sub-region. In Chapter 5, flow normalization is introduced and the results of trend analyses on 1994-2008 time series data on total waterborne loads of nitrogen and phosphorus are given together with a first evaluation of progress in obtaining the provisional reduction targets by country and by main Baltic Sea sub-region. Chapter 6 includes discussion of some of the main conclusions and advice for future PLCs. The annexes contain the flow-normalized annual load data and figures and tables with results from the PLC-5.

  19. Automatic control model of water filling system with Allen Bradley Micrologix 1400 PLC

    Science.gov (United States)

    Harahap, R.; Adyatma, AF; Fahmi, F.

    2018-02-01

    Programmable Logic Controller or PLC today plays an important role in most industrial control systems. PLC usage can be encountered in almost all fields of industry, not only in the manufacturing world but also on many other things such as elevators in office buildings, hotels hospitals, and others. PLC is an electronic control tool that operates in logic that its programming can be modified with relative ease. As with any controller in general, the PLC processes input signals to further discharge output according to the desired program. PLC usage is very broad because of its high reliability, can be reprogrammed or modified with relative ease, and very helpful in the tracking troubleshooting. One type of existing PLC is Allen Bradley PLC. Allen Bradley PLC program is commonly used in various industries. PLC Allen Bradley (AB) has several types, and one of them is the type of Micrologic 1400. In this study we design a system as a comparison with the conventional system. For that to explore the use of a PLC program which will be supported by a simulator tool, including a program to RSLogic 500, how to programming, monitoring via RSView32, and modification. It is expected to understand the application aspect of operation and programming of this specific PLC and its potential. The purpose of this research is to design water filling automation system by using Allen Bradley Micrologic 1400 type 1766-L32BXB PLC, empowering the use of Allen Bradley Micrologic 1400 PLC and to regulate the desired process to obtain efficiency and effectiveness compared with conventional system arrangement using Relay.

  20. Webová aplikace v PLC PFC200

    OpenAIRE

    Michalík, David

    2017-01-01

    Tato bakalářská práce se věnuje implementaci vlastního způsobu ovládání vstupů, výstupů a paměti PLC PFC200 od firmy WAGO pomocí dynamického webového rozhraní. Součástí práce je popis PLC, způsobů jeho ovládání, rešerše volně dostupných webových serverů pro Linux a popis metod pro vytvoření real-time ovládání. Výstupem je webová aplikace běžící na webovém serveru v PLC, využívající vlastní runtime systém formou daemon programů. This bachelor’s thesis is mainly focused on implementation of ...

  1. PLC based control system and maintenance activities at NCAR, Bilaspur

    International Nuclear Information System (INIS)

    Dewangan, Jaidev; Trivedi, T.; Patel, Shiv P.; Malik, C.; Kumar, Rakesh; Gupta, Santosh Kumar; Bajpai, P.K.

    2015-01-01

    A 3.0 MV high current low energy Pelletron Accelerator facility (Model 9SDH-4, NEC, USA) with TORUIS (ion source for H + and He 2+ beam current H + ion ∼ 50μA @ 6 MeV, He 2+ at ∼ 10μA) and SNICS-II ion source for heavy ions has been commissioned as 'National Centre for Accelerator Based Research' in the Department of Pure and Applied Physics, Guru Ghasidas Vishwavidyalaya. In this paper, we detail out the control system developed and implemented at NCAR. The basic idea of controlling the machine is by providing the output signal through PLC to ACPC of accelerator using user interface points provided by the manufacturer. The PLC based system generates output signal once it receives the feedback signals from search and secure switches, door lock switches and scram switches interlocked with PLC. The output is controlled by ladder logic and is activated only when all the radiation monitors are in healthy state and outside radiations monitor having low radiation level. The details of control system and maintenance activities will be discussed in the paper

  2. Mirzam C. Pérez, The Comedia of Virginity: Mary and the Politics of Seventeenth-Century Spanish Theater

    Directory of Open Access Journals (Sweden)

    Natalia Fernández

    2016-01-01

    Full Text Available Reseña de Mirzam C. Pérez, The Comedia of Virginity: Mary and the Politics of Seventeenth-Century Spanish Theater, Waco (Texas, Baylor University Press, 2012, 173 pp. ISBN: 9781602586451.

  3. Natural Law in Francisco Suárez: Passion for Freedom

    Directory of Open Access Journals (Sweden)

    Manuel López Casquete de Prado

    2018-05-01

    Full Text Available The Suaretian formulation on the natural law offers one of the most brilliant and accomplished elaborations of the ius-naturalistic tradition. In this article we analyze the keys from which Suárez formulates his proposal, that finds in the concept of freedom its starting point. From the radical and inalienable call to the human being to the exercise of his freedom, Suárez reveals the essence of its elaboration, one of whose consequences would end by decanting —later on— the concept of subjective right. We also pay special attention to the epistemological aspects of its system, which we consider essential to approach a correct understanding of the Suaretian ius-naturalistic proposal. For this purpose, we offer a close comparison between the Suaretian system and the Thomistic epistemology of the natural law.

  4. [Epilepsy in the Spanish Renaissance. The work of Pérez Cascales of Alcalá].

    Science.gov (United States)

    García-Albea, E

    During the Renaissance, the University of Alcalá de Henares represented the most best of Spanish medical humanism. A return to the classics after mediaeval religious obscurantism meant a 'modern' spirit of reconsideration of the major neurological disorders. In 1611 Francisco Pérez Cascales, trained at this university, wrote the first great Spanish treatise on paediatrics, Liber de affectionibus puerorum, which included a long chapter on epilepsy (alferecía). The author, considered to be a 'Hippocratic galenist' critically reviewed, with data from empirical observations, the Greek theory of humours. Following the Galenic tradition, he distinguished three types of epilepsy: primary or originating in the brain, and by 'consensus' (originating in another region but with secondary cerebral involvement) either of the stomach or other parts of the body. The work of Pérez Cascales is one of the most complete contributions to the under understanding of epilepsy at his time.

  5. MONUMENTO A PEDRO PÉREZ RODRÍGUEZ [Material gráfico

    OpenAIRE

    Anonymous

    1980-01-01

    ANEXO SELLO DE LA COMISIÓN DEL PATRIMONIO HISTÓRICO ARTÍSTICO DE GÁLDAR. MONUMENTO LEVANTADO POR LA PARROQUIA DE SAN JOSÉ DE LOS CAIDEROS A SU PRIMER PÁRROCO, EL SACERDOTE MAJORERO, DON PEDRO PÉREZ RODRÍGUEZ. SE ENCUENTRA EL BUSTO EN LA GLORIETA LATERAL DEL CENTRO. Copia digital. Madrid : Ministerio de Educación, Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 2015

  6. Nostalgia of the Encomienda. Rereading Juan Suárez de Peralta's Tratado del descubrimiento (1589

    Directory of Open Access Journals (Sweden)

    Enrique González González

    2009-10-01

    Full Text Available The work Tratado del descubrimiento de las Yndias y su conquista, written  by the New Spain Creole Juan Suárez de Peralta around 1589, has traditionally been read as just another Conquest chronicle, scarcely interesting in its first chapters, but fully vivid in its “second” part, where the author  tells of the so-called conspiracy of Martín Cortés,  Second Marquis of the Valley of Oaxaca. This paper, however, suggests that the Tratado, in keeping with its title, must be read as a treatise in which Suárez de Peralta pleads for the legitimacy of the encomienda and offers an account of the fateful —as he sees them— consequences  brought about by the Crown's rulings to suppress it. Therefore, the Tratado must be considered within the great debates of the time on how conquered peoples, conquerors and their descendants  should be treated. Although not a professional lawyer, Suárez de Peralta turns out to be a resourceful and convincing writer. Far from offering a linear account  of a series of events, he takes advantage of ambiguity in order  to argue, from different  viewpoints,  on several issues. Sensing that he defends a lost cause, his allegation oozes irony, disillusion, and nostalgia.

  7. Pulmonary effects of active smoking and secondhand smoke exposure among adolescent students in Juárez, Mexico

    Directory of Open Access Journals (Sweden)

    Bird Y

    2016-06-01

    Full Text Available Yelena Bird,1 Hugo Staines-Orozco2 1School of Public Health, University of Saskatchewan, Saskatoon, SK, Canada; 2Institute of Biomedical Sciences, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Calle Estocolmo, Ciudad Juárez, Chihuahua, Mexico Background: Youth smoking trends among Latin American countries, including Mexico, are on the rise. Notably, although the high prevalence of smoking in teens has been well documented in the literature, few studies have evaluated the impact of smoking and secondhand smoke (SHS exposure on their respiratory system.  Objective: To investigate the effects of smoking and SHS exposure on the respiratory health and lung function among eighth-grade students in Juárez, Mexico. Methods: A cross-sectional study was undertaken on a sample of convenience. The study outcomes centered on evaluating 300 students’ lung function by spirometry (forced expiratory volume in 1 second [FEV1], forced expiratory volume in 1 second/forced vital capacity ratio [FEV1/FVC], and forced mid-expiratory flow rate [FEF25%–75%] and their respiratory health (smoking behavior and SHS exposure by their self-reported responses to a standardized respiratory questionnaire. The study outcomes were compared among three distinct groups: 1 nonsmokers/nonexposed to SHS; 2 nonsmokers/exposed to SHS; and 3 smokers. Results: The majority of the study participants were 14 years old (85%, females (54%, who attended eighth grade in a public school setting (56%. Approximately, half reported being of low socioeconomic status (49% and nonsmokers/exposed to SHS (49%. The lung function parameters of smokers were found to be lower (FEV1 =62.88±10.25; FEV1/FVC =83.50±14.15; and FEF25%–75% =66.35±12.55 than those recorded for the nonsmokers/exposed to SHS (FEV1 =69.41±11.35; FEV1/FVC =88.75±15.75; and FEF25%–75% =78.90±14.65 and significantly reduced when compared to the nonsmokers/nonexposed to SHS (FEV1 =79.14±13

  8. Emulation of Narrowband Powerline Data Transmission Channels and Evaluation of PLC Systems

    OpenAIRE

    Liu, Wenqing

    2013-01-01

    This work proposes advanced emulation of the physical layer behavior of NB-PLC channels and the application of a channel emulator for the evaluation of NB-PLC systems. In addition, test procedures and reference channels are proposed to improve efficiency and accuracy in the system evaluation and classification. This work shows that the channel emulator-based solution opens new ways toward flexible, reliable and technology-independent performance assessment of PLC modems.

  9. Machine interlock and protection system based on PLC for the SSRF linac

    International Nuclear Information System (INIS)

    Chou Wenjun; Zhou Dayong; Chen Jianfeng; Shen Liren; Liu Yajuan

    2008-01-01

    This paper describes a machine interlock and protection system used for accelerators based on EPICS (Experimental physics and industrial control system). The system is composed of a front-end computer and an FM-3R logic controller PLC. The alarm signal is passed by the hardware directly, and would be deal with PLC. The reporting, recording and analyst of the event are accomplished by EPICS control software. And PLC is linked to the EPICS by Internet. (authors)

  10. A study of PLC system vulnerability checklists in nuclear power plants

    International Nuclear Information System (INIS)

    Cha, Ki Jong; Cho, Gi Ho; Ahn, Jaeh Young; Kim, Young Mi; Kwon, Yong Il

    2012-01-01

    Because the design of the PLCs (Programmable Logic Controller) in the I and C (Instrument and Control) systems for NPP (Nuclear Power Plant) were carried out independently, the problems of cyber security were not addressed in the PLC system designs. Recently, the analysis and the countermeasure development for the PLC systems became mandatory due to the developments in cyber attack techniques and the increasingly revealed vulnerability to such attacks. A comparative analysis on the cyber security checklist of PLC in industry control system and in NPP systems was carried out, and in this paper, the cyber security regulatory trend and the PLC usage status are described

  11. A study of PLC system vulnerability checklists in nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Cha, Ki Jong; Cho, Gi Ho; Ahn, Jaeh Young [Convergence technology Research Commercialization Center, Daejeon (Korea, Republic of); Kim, Young Mi; Kwon, Yong Il [Korea Institute of Nuclear Safety, Daejeon (Korea, Republic of)

    2012-10-15

    Because the design of the PLCs (Programmable Logic Controller) in the I and C (Instrument and Control) systems for NPP (Nuclear Power Plant) were carried out independently, the problems of cyber security were not addressed in the PLC system designs. Recently, the analysis and the countermeasure development for the PLC systems became mandatory due to the developments in cyber attack techniques and the increasingly revealed vulnerability to such attacks. A comparative analysis on the cyber security checklist of PLC in industry control system and in NPP systems was carried out, and in this paper, the cyber security regulatory trend and the PLC usage status are described.

  12. Puebla Territory-Specific Basket of Goods Strategies and Their Local Repercussions for Employment and Profit: the Case of Xicotepec de Juárez, Puebla

    Directory of Open Access Journals (Sweden)

    Mario del Roble Pensado Leglise

    2015-07-01

    Full Text Available Developing a basket of land goods means a systemic strateg y for small farmers because it allows reaching multiple objectives in order to promote territorial competitiveness to access market niches with varied rural goods, strengthen social capital and generate better local levels in employment and income, together with increasing and preserving the environment. This analysis implied the application of a system dynamics model which produced possible future scenarios (through Ve n s i m®DSS 5.8 about employment and income obtained by smallholder coffee farmers from Xicotepec de Juárez municipality in Puebla, regarding the setting of the above mentioned strateg y for rural development. Results showed that this strateg y was implemented successfully and also revealed opportunities for: a improving the development capacity of small farmers; b making the institutional context favorable; c The reinforcement of social capital essential to implement this land strategy.

  13. Embedded PLC Webserver and Possibilities of its Utilization

    Science.gov (United States)

    Kopček, Michal

    2016-12-01

    The concept Industry 4.0 is a top theme of recent times. Even if it represents the so-called 4th industrial revolution its main ideas could be used also to support the education of subjects from IT and automation. Furthermore, the basic IT and web technologies inherited by this concept are very well known to students. This paper introduces the embedded webserver of PLC and the options for its optimal utilization. The web server is essentially a simple and widely well-known technology, therefore it was chosen as an example.

  14. Cybersecurity Vulnerability Analysis of the PLC PRIME Standard

    Directory of Open Access Journals (Sweden)

    Miguel Seijo Simó

    2017-01-01

    Full Text Available Security in critical infrastructures such as the power grid is of vital importance. The Smart Grid puts power grid classical security approach on the ropes, since it introduces cyberphysical systems where devices, communications, and information systems must be protected. PoweRline Intelligent Metering Evolution (PRIME is a Narrowband Power-Line Communications (NB-PLC protocol widely used in the last mile of Advanced Metering Infrastructure (AMI deployments, playing a key role in the Smart Grid. Therefore, this work aims to unveil the cybersecurity vulnerabilities present in PRIME standard, proposing solutions and validating and discussing the results obtained.

  15. Performance Evaluation of CE-OFDM in PLC Channel

    OpenAIRE

    El Ghzaoui Mohammed; Belkadid Jamal; Benbassou Ali

    2011-01-01

    One major drawback associated with an OFDM system is that the transmitter’s output signal may have a high peak-to-average ratio (PAPR). High levels of PAR may be a limiting factor for power line communication (PLC) where regulatory bodies have fixed the maximum amount of transmit power. To overcome this problem, many approaches have been presented in the literature. One potential solution for reducing the peak-to-average power ratio (PAPR) in an OFDM system is to utilize a constant envelope O...

  16. AUTOMATION OF GLASS TEMPERING FURNACE BY USING PLC

    Directory of Open Access Journals (Sweden)

    Abdullah BÜYÜKYILDIZ

    2007-02-01

    Full Text Available In this study, a furnace which is used for observation of environments under high temperature, and also used for manufacturing of glasses which are resisted to high temperature has been designed and implemented. Automation of this system has been done by using PLC. Operating parameters of furnace such as materials entering, the furnace, the local temperature control of furnace, cooling control and materials outing have been sensed with Hall Effect Sensor. Furthermore, the observation of parameters of furnace on screen has been provided with SCADA software. Obtained products have been shown the system works successfully.

  17. Embedded PLC Webserver and Possibilities of its Utilization

    Directory of Open Access Journals (Sweden)

    Kopček Michal

    2016-12-01

    Full Text Available The concept Industry 4.0 is a top theme of recent times. Even if it represents the so-called 4th industrial revolution its main ideas could be used also to support the education of subjects from IT and automation. Furthermore, the basic IT and web technologies inherited by this concept are very well known to students. This paper introduces the embedded webserver of PLC and the options for its optimal utilization. The web server is essentially a simple and widely well-known technology, therefore it was chosen as an example.

  18. Embedded PLC Webserver and Possibilities of its Utilization

    OpenAIRE

    Kopček Michal

    2016-01-01

    The concept Industry 4.0 is a top theme of recent times. Even if it represents the so-called 4th industrial revolution its main ideas could be used also to support the education of subjects from IT and automation. Furthermore, the basic IT and web technologies inherited by this concept are very well known to students. This paper introduces the embedded webserver of PLC and the options for its optimal utilization. The web server is essentially a simple and widely well-known technology, therefo...

  19. A combined PLC and CPU approach to multiprocessor control

    International Nuclear Information System (INIS)

    Harris, J.J.; Broesch, J.D.; Coon, R.M.

    1995-10-01

    A sophisticated multiprocessor control system has been developed for use in the E-Power Supply System Integrated Control (EPSSIC) on the DIII-D tokamak. EPSSIC provides control and interlocks for the ohmic heating coil power supply and its associated systems. Of particular interest is the architecture of this system: both a Programmable Logic Controller (PLC) and a Central Processor Unit (CPU) have been combined on a standard VME bus. The PLC and CPU input and output signals are routed through signal conditioning modules, which provide the necessary voltage and ground isolation. Additionally these modules adapt the signal levels to that of the VME I/O boards. One set of I/O signals is shared between the two processors. The resulting multiprocessor system provides a number of advantages: redundant operation for mission critical situations, flexible communications using conventional TCP/IP protocols, the simplicity of ladder logic programming for the majority of the control code, and an easily maintained and expandable non-proprietary system

  20. Commercial information system of Slovak Electricity Transmission System, Plc

    International Nuclear Information System (INIS)

    Laznicka, L.

    2004-01-01

    Commercial Information System (CIS), which main role of is to support the commercial activities of the company, is built up by business department of SEPS, Plc in close co-operation with the supplier company Sfera, Plc. The system entries are data from electricity meters obtained by automatized data acquisition and from bugging sheets, contractual hour diagrams, parameters of transmission system like measuring schemes and formulas for calculation of demand and supply, contractual data resulting from agreements, business conditions, URSO decisions and valid legislative. A part of the system is also support of process of data evaluation like calculation of transmitted energy quantity, calculation of actual output diagrams, comparison of actual and contractual diagrams, calculation of system divergence, calculation of demand divergence, etc. The final price for the drawings of services, which are joined with transmission of the electric power will be determined by the accounting process. In this causality there are automatically made out invoices for access, losses, system charges, system services, short-term and long-term transits, divergences and for cross-border transmission auctions. System also generates various specialized synopses and statistics for the evaluation requirements of important aspects and for parameter observations. Successive liberalisation of the electricity power market, changes in legislative and URSO decisions require CIS to be sufficiently configurable and to adapt flexible on the alternating environs. (author)

  1. Automation of Underground Cable Laying Equipment Using PLC and Hmi

    Science.gov (United States)

    Mal Kothari, Kesar; Samba, Vishweshwar; Tania, Kinza; Udayakumar, R., Dr; Karthikeyan, Ram, Dr

    2018-04-01

    Underground cable laying is an alternative for overhead cable laying of telecommunication and power transmission lines. It is becoming very popular in recent times because of some of its advantages over overhead cable laying. This type of cable laying is mostly practiced in developed countries because it is more expensive than overhead cable laying. Underground cable laying is more suitable when land is not available, and it also increases the aesthetics. This paper implements the automation on a manually operated cable pulling winch machine using programmable logic controller (PLC). Winch machines are useful in underground cable laying. The main aim of the project is to replace all the mechanical functions with electrical controls which are operated through a touch screen (HMI). The idea is that the machine should shift between parallel and series circuit automatically based on the pressure sensed instead of manually operating the solenoid valve. Traditional means of throttling the engine using lever and wire is replaced with a linear actuator. Sensors such as proximity, pressure and load sensor are used to provide the input to the system. The HMI used will display the speed, length and tension of the rope being winded. Ladder logic is used to program the PLC.

  2. File list: Pol.Plc.50.RNA_Polymerase_III.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.50.RNA_Polymerase_III.AllCell mm9 RNA polymerase RNA Polymerase III Placent...a http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/Pol.Plc.50.RNA_Polymerase_III.AllCell.bed ...

  3. File list: Pol.Plc.50.RNA_polymerase_II.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.50.RNA_polymerase_II.AllCell hg19 RNA polymerase RNA polymerase II Placenta... http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.50.RNA_polymerase_II.AllCell.bed ...

  4. File list: Pol.Plc.20.RNA_polymerase_III.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.20.RNA_polymerase_III.AllCell hg19 RNA polymerase RNA polymerase III Placen...ta http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.20.RNA_polymerase_III.AllCell.bed ...

  5. File list: Pol.Plc.10.RNA_polymerase_II.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.10.RNA_polymerase_II.AllCell hg19 RNA polymerase RNA polymerase II Placenta... http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.10.RNA_polymerase_II.AllCell.bed ...

  6. File list: Pol.Plc.10.RNA_polymerase_III.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.10.RNA_polymerase_III.AllCell hg19 RNA polymerase RNA polymerase III Placen...ta http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.10.RNA_polymerase_III.AllCell.bed ...

  7. File list: Pol.Plc.05.RNA_polymerase_II.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.05.RNA_polymerase_II.AllCell hg19 RNA polymerase RNA polymerase II Placenta... http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.05.RNA_polymerase_II.AllCell.bed ...

  8. 77 FR 32007 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-05-31

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... all Rolls-Royce plc (RR) RB211-Trent 800 series turbofan engines. This AD requires removal from...-17, 877- 17, 884-17, 884B-17, 892-17, 892B-17, and 895-17 turbofan engines. (d) Reason This AD was...

  9. 77 FR 73268 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-12-10

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... certain Rolls-Royce plc (RR) RB211-Trent 900 series turbofan engines. This AD requires inspection of the... turbofan engines, all serial numbers. (d) Reason This AD was prompted by a Trent 900 engine experiencing a...

  10. 78 FR 17297 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-03-21

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for all Rolls-Royce plc (RR) RB211 Trent 500 series turbofan engines. That AD currently requires... 9, 2012), for all RR RB211 Trent 500 series turbofan engines. That AD requires a one-time inspection...

  11. 78 FR 6749 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-01-31

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... (AD) for all Rolls-Royce plc (RR) models RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines... 772B-60 turbofan engines. (d) Reason This AD was prompted by low-pressure (LP) compressor blade partial...

  12. 77 FR 56760 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-09-14

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... all Rolls-Royce plc (RR) RB211-Trent 800 series turbofan engines. This AD requires removing from...-17, 892-17, 892B-17, and 895-17 turbofan engines that have an intermediate pressure (IP) turbine disc...

  13. 77 FR 13485 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-03-07

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... series turbofan engines. This AD requires inspecting the front combustion liner head section for cracking.... (c) Applicability This AD applies to Rolls-Royce plc (RR) RB211-Trent 800 turbofan engines, all...

  14. Application of PLC technology in measurement of beam profile on 100 MeV accelerator

    International Nuclear Information System (INIS)

    Yu Luyang; Chinese Academy of Sciences, Beijing; Chen Yongzhong; Chen Yongzhong; Liu Dekang; Chinese Academy of Sciences, Beijing

    2005-01-01

    A comprehensive introduction is given to the real-time measuring method, which is based on the Programmable Logic Controller (PLC) technology and can measure intensity and profile of the beam by a scintillator screen. The whole system has many advantages, such as good reliability, high precision, intuitional measurement, etc. due to the use of the PLC and Labview software. (authors)

  15. 76 FR 80430 - Rio Tinto plc and Rio Tinto Limited; Notice of Application

    Science.gov (United States)

    2011-12-23

    ... plc and Rio Tinto Limited; Notice of Application December 19, 2011. AGENCY: Securities and Exchange Commission (``Commission''). ACTION: Notice of application under section 3(b)(2) and 45(a) of the Investment Company Act of 1940 (the ``Act''). SUMMARY: Summary of Application: Rio Tinto plc (``RTP'') and Rio Tinto...

  16. Upgradation in SCADA and PLC of existing LN_2 control system for SST-1

    International Nuclear Information System (INIS)

    Panchal, Pradip; Mahesuria, Gaurang; Panchal, Rohit; Patel, Rakesh; Sonara, Dashrath; Pitroda, Dipen; Nimavat, Hiren; Tanna, Vipul; Pradhan, Subrata

    2016-01-01

    Highlights: • The control system of LN_2 Management System of SST-1 is designed on PLC and SCADA. • The implementation and results of up-gradation in PLC and SCADA are reported. • The up-gradation in PLC and SCADA has improved the reliability & availability of SST-1 LN_2 system. - Abstract: Helium Refrigerator/Liquefier system of Steady State Superconducting Tokamak (SST-1) incorporates Liquid Nitrogen (LN_2) pre-cooling system. LN_2 is used for 80 K thermal shields of SST-1, current feeder system and integrated flow distribution and control system. The LN_2 management system is distributed system and requires automatic control. Initially LN_2 control system had Citect based Supervisory Control and Data Acquisition (SCADA) and Koyo make Programmable Logic Controller (PLC). With the passage of time and due to unavailability of their hardware, it is being obsoleted. So, the requirements of new PLC and SCADA systems have been envisaged to make uninterruptable operation of SST-1 cryogenic system. Therefore, Wonderware SCADA and Schneider Electric make PLC is programmed to replace Citect SCADA and Koyo PLC. New control features have been added in upgraded control system for better management of LN_2 system. This upgradation of SCADA and PLC is completed, tested successfully and in operation. Operational performance highlights of the new upgraded system are presented in this paper.

  17. 75 FR 46864 - Airworthiness Directives; Short Brothers PLC Model SD3 Airplanes

    Science.gov (United States)

    2010-08-04

    ...-0225; Directorate Identifier 2009-NM-203-AD] RIN 2120-AA64 Airworthiness Directives; Short Brothers PLC... this proposed AD, contact Short Brothers PLC, Airworthiness, P.O. Box 241, Airport Road, Belfast, BT3... amend this proposed AD based on those comments. We will post all comments we receive, without change, to...

  18. 75 FR 61114 - Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2010-10-04

    ... Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines AGENCY: Federal Aviation.... Fax: (202) 493-2251. Contact Rolls-Royce plc, P.O. Box 31, Derby, England, DE248BJ; telephone: 011-44... AD. We will consider all comments received by the closing date and may amend this proposed AD based...

  19. 75 FR 264 - Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2010-01-05

    ...-1004; Directorate Identifier 2009-NE-36-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc.... Contact Rolls-Royce plc, P.O. Box 31, Derby, England; telephone: 011-44-1332-249428; fax: 011-44-1332... AD. We will consider all comments received by the closing date and may amend this proposed AD based...

  20. 76 FR 2605 - Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2011-01-14

    ... Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines AGENCY: Federal Aviation... holidays. Fax: (202) 493-2251. Contact Rolls-Royce plc, P.O. Box 31, DERBY, DE24 8BJ, UK; telephone 44 (0... AD. We will consider all comments received by the closing date and may amend this proposed AD based...

  1. 76 FR 24796 - Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2011-05-03

    ... Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines AGENCY: Federal Aviation.... Request To Revise the Compliance Times Four commenters, American Airlines, Delta Airlines, Rolls-Royce plc... SNPRM were developed to minimize the risk of uncontained disc failure, based on the age of the parts in...

  2. 78 FR 54149 - Airworthiness Directives; Rolls-Royce plc (RR) Turbofan Engines

    Science.gov (United States)

    2013-09-03

    ... Airworthiness Directives; Rolls-Royce plc (RR) Turbofan Engines AGENCY: Federal Aviation Administration (FAA... service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31... per hour. Replacement parts are estimated to cost about $2,271 per engine. Based on these figures, we...

  3. 76 FR 65136 - Airworthiness Directives; Rolls-Royce plc (RR) Turbofan Engines

    Science.gov (United States)

    2011-10-20

    ... Airworthiness Directives; Rolls-Royce plc (RR) Turbofan Engines AGENCY: Federal Aviation Administration (FAA... information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby... 8, 2011, to perform the inspection. Costs of Compliance Based on the service information, we...

  4. 76 FR 52288 - Airworthiness Directives; Rolls-Royce plc (RR) Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2011-08-22

    ...-0836; Directorate Identifier 2010-NE-38-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR... plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom: telephone 44 (0) 1332 242424; fax 44 (0) 1332... based on those comments. We will post all comments we receive, without change, to http://www.regulations...

  5. Translation of PLC Programs to x86 for Simulation and Verification

    CERN Document Server

    Sallai, Gyula

    2017-01-01

    PLC programs are written in special languages, variants of the languages defined in the IEC 61131 standard. These programs cannot be directly executed on personal computers (on x86 architecture). To perform simulation of the PLC program or diagnostics during development, either a real PLC or a PLC simulator has to be used. However, these solutions are often inflexible and they do not provide appropriate performance. By generating x86-representations (semantically equivalent programs which can be executed on PCs, e.g. written in C, C++ or Java) of the PLC programs, some of these challenges could be met. PLCverif is a PLC program verification tool developed at CERN which includes a parser for Siemens PLC programs. In this work, we describe a code generator based on this parser of PLCverif. This work explores the possibilities and challenges of generating programs in widely-used general purpose languages from PLC programs, and provides a proof-of-concept code generation implementation. The presented solution dem...

  6. Upgradation in SCADA and PLC of existing LN{sub 2} control system for SST-1

    Energy Technology Data Exchange (ETDEWEB)

    Panchal, Pradip, E-mail: pradip@ipr.res.in; Mahesuria, Gaurang; Panchal, Rohit; Patel, Rakesh; Sonara, Dashrath; Pitroda, Dipen; Nimavat, Hiren; Tanna, Vipul; Pradhan, Subrata

    2016-11-15

    Highlights: • The control system of LN{sub 2} Management System of SST-1 is designed on PLC and SCADA. • The implementation and results of up-gradation in PLC and SCADA are reported. • The up-gradation in PLC and SCADA has improved the reliability & availability of SST-1 LN{sub 2} system. - Abstract: Helium Refrigerator/Liquefier system of Steady State Superconducting Tokamak (SST-1) incorporates Liquid Nitrogen (LN{sub 2}) pre-cooling system. LN{sub 2} is used for 80 K thermal shields of SST-1, current feeder system and integrated flow distribution and control system. The LN{sub 2} management system is distributed system and requires automatic control. Initially LN{sub 2} control system had Citect based Supervisory Control and Data Acquisition (SCADA) and Koyo make Programmable Logic Controller (PLC). With the passage of time and due to unavailability of their hardware, it is being obsoleted. So, the requirements of new PLC and SCADA systems have been envisaged to make uninterruptable operation of SST-1 cryogenic system. Therefore, Wonderware SCADA and Schneider Electric make PLC is programmed to replace Citect SCADA and Koyo PLC. New control features have been added in upgraded control system for better management of LN{sub 2} system. This upgradation of SCADA and PLC is completed, tested successfully and in operation. Operational performance highlights of the new upgraded system are presented in this paper.

  7. File list: Pol.Plc.05.RNA_polymerase_III.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.05.RNA_polymerase_III.AllCell hg19 RNA polymerase RNA polymerase III Placen...ta http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.05.RNA_polymerase_III.AllCell.bed ...

  8. File list: Pol.Plc.20.RNA_polymerase_II.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.20.RNA_polymerase_II.AllCell hg19 RNA polymerase RNA polymerase II Placenta... http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.20.RNA_polymerase_II.AllCell.bed ...

  9. File list: Pol.Plc.50.RNA_polymerase_III.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available Pol.Plc.50.RNA_polymerase_III.AllCell hg19 RNA polymerase RNA polymerase III Placen...ta http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/Pol.Plc.50.RNA_polymerase_III.AllCell.bed ...

  10. File list: InP.Plc.50.Input_control.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available InP.Plc.50.Input_control.AllCell hg19 Input control Input control Placenta SRX19004...9,SRX080366 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/InP.Plc.50.Input_control.AllCell.bed ...

  11. File list: InP.Plc.20.Input_control.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available InP.Plc.20.Input_control.AllCell mm9 Input control Input control Placenta SRX112971...02,SRX404310,SRX1072160,SRX871507,SRX192097,SRX192098,SRX192099,SRX204148 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Plc.20.Input_control.AllCell.bed ...

  12. File list: InP.Plc.05.Input_control.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available InP.Plc.05.Input_control.AllCell hg19 Input control Input control Placenta SRX19004...9,SRX080366 http://dbarchive.biosciencedbc.jp/kyushu-u/hg19/assembled/InP.Plc.05.Input_control.AllCell.bed ...

  13. File list: InP.Plc.05.Input_control.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available InP.Plc.05.Input_control.AllCell mm9 Input control Input control Placenta SRX344647...160,SRX204147,SRX404310,SRX871506,SRX871507,SRX192098,SRX192097,SRX192099 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Plc.05.Input_control.AllCell.bed ...

  14. File list: InP.Plc.10.Input_control.AllCell [Chip-atlas[Archive

    Lifescience Database Archive (English)

    Full Text Available InP.Plc.10.Input_control.AllCell mm9 Input control Input control Placenta SRX344648...310,SRX871506,SRX142911,SRX871507,SRX204148,SRX192098,SRX192097,SRX192099 http://dbarchive.biosciencedbc.jp/kyushu-u/mm9/assembled/InP.Plc.10.Input_control.AllCell.bed ...

  15. Quality of Non-Interest Banking Services and Customers’ Satisfaction: Evidence from Jaiz Bank PLC, Kaduna, Nigeria

    Directory of Open Access Journals (Sweden)

    Yusuf Ismaila Mustapha

    2017-02-01

    Full Text Available The dwindling levels of service quality in Nigerian financial institutions had resulted in abysmal performance of most banks and other financial institutions in the sector and this challenge has made it imperative for financial firms to be customer centered in all their operational activities. The purpose of this study is to determine the effect of service quality of non-interest bank on customers’ satisfaction using Jaiz Bank PLC, Kaduna as a case study. The study utilized convenience and snowball sampling techniques to select 147 customers who served as respondents in the study. Correlation and multiple regression analysis were employed as analytical techniques. The results show that compliance with Islamic laws is highly correlated with customer satisfaction which was followed respectively by assurance, reliability, tangibility, responsiveness and empathy dimensions. It was also discovered that the six service quality dimensions significantly influenced the satisfaction of Jaiz Bank Plc, Kaduna branch customers’. The study recommends that management of the bank should exploit and maneuver the service quality dimensions as a survival strategy for improving customers’ satisfaction in an industry characterized by intense competition and environmental dynamism.

  16. Fc gamma receptor activation induces the tyrosine phosphorylation of both phospholipase C (PLC)-gamma 1 and PLC-gamma 2 in natural killer cells

    OpenAIRE

    1992-01-01

    Crosslinking of the low affinity immunoglobulin G (IgG) Fc receptor (Fc gamma R type III) on natural killer (NK) cells initiates antibody- dependent cellular cytotoxicity. During this process, Fc gamma R stimulation results in the rapid activation of phospholipase C (PLC), which hydrolyzes membrane phosphoinositides, generating inositol-1,4,5- trisphosphate and sn-1,2-diacylglycerol as second messengers. We have recently reported that PLC activation after Fc gamma R stimulation can be inhibit...

  17. The Integration of DCS I/O to an Existing PLC

    Science.gov (United States)

    Sadhukhan, Debashis; Mihevic, John

    2013-01-01

    At the NASA Glenn Research Center (GRC), Existing Programmable Logic Controller (PLC) I/O was replaced with Distributed Control System (DCS) I/O, while keeping the existing PLC sequence Logic. The reason for integration of the PLC logic and DCS I/O, along with the evaluation of the resulting system is the subject of this paper. The pros and cons of the old system and new upgrade are described, including operator workstation screen update times. Detail of the physical layout and the communication between the PLC, the DCS I/O and the operator workstations are illustrated. The complex characteristics of a central process control system and the plan to remove the PLC processors in future upgrades is also discussed.

  18. Silica-based PLC with heterogeneously-integrated PDs for one-chip DP-QPSK receiver.

    Science.gov (United States)

    Kurata, Yu; Nasu, Yusuke; Tamura, Munehisa; Kasahara, Ryoichi; Aozasa, Shinichi; Mizuno, Takayuki; Yokoyama, Haruki; Tsunashima, Satoshi; Muramoto, Yoshifumi

    2012-12-10

    To realize a DP-QPSK receiver PLC, we heterogeneously integrated eight high-speed PDs on a silica-based PLC platform with a PBS, 90-degree optical hybrids and a VOA. The use of a 2.5%-Δ waveguide reduced the receiver PLC size to 11 mm x 11 mm. We successfully demonstrated 32 Gbaud DP-QPSK signal demodulation with the receiver PLC.

  19. JORGE RAMÍREZ ESPINO, PRODUCTOR DE FLORES ARTIFICIALES [Material gráfico

    OpenAIRE

    Suárez García, Carlos Félix

    1980-01-01

    JORGE RAMÍREZ ESPINO, ARTESANO TRADICIONAL DE LAS PALMAS DE GRAN CANARIA DEDICADO A LA PRODUCCIÓN DE FLORES ARTIFICIALES CON TIRAS DE PLATANERA, HOJAS DE DRAGO, CAMISA DE MILLO Y LA PIÑA DE LA FLOR DE LA PLATANERA NACIÓ EN LAS PALMAS DE GRAN CANARIA EN EL AÑO 1942. COMIENZA SU ANDADURA DE MANERA AUTODIDACTA, CONFECCIONANDO FLORES, EN EL AÑO 1992, AL TIEMPO QUE REALIZA COLLARES PARA CABRAS CON ANTONIO PERERA HASTA EL AÑO 1995, EN QUE COMIENZA A VENDER SUS PRIMEROS PRODUCTOS DEL CARA AL PÚBL...

  20. Mentira y Verdad en tres Novelas de Sergio Ramírez: Algunos Procedimientos de Verosimilitud

    OpenAIRE

    Rodríguez Sancho, Javier

    2013-01-01

    Con base en la narrativa del nicaragüense Sergio Ramírez, se efectúa un análisis sobre algunos procedimientos de verosimilitud utilizados por el escritor en tres de sus novelas: Tiempo de fulgor (1970); ¿Te dio miedo la sangre? (1977) y Un baile de máscaras (1995). La evaluación de los textos busca comprender los niveles en que el escritor hace uso de ciertos procedimientos de verosimilitud para contarnos algunas mentiras verdaderas como él mismo lo ha llamado, en su ensayo: Mentiras verdader...

  1. Exploring the efficacy of an environmental health intervention in Ciudad Juárez, Mexico.

    Science.gov (United States)

    Hernández, Alma A; Grineski, Sara E

    2010-01-01

    This study explores the efficacy of an environmental health intervention in several poor colonias in Ciudad Juárez (Mexico). Parents of children with respiratory problems were given environment-friendly products intended to replace hazardous products used in the home, as well as information about environmental health. Parents were surveyed before and after to measure the effectiveness of the intervention and to gauge perceptions. There was a significant reduction in hazardous chemical use (eg, cleaning products and pesticides) and breathing problems. While the intervention focused on changing in-home behaviors, open-ended responses revealed that parents were most concerned about outdoor environmental conditions over which they had less control.

  2. La risa en Francisco Suárez. El paso de la Edad Media al Barroco

    Directory of Open Access Journals (Sweden)

    Manuel Lázaro Pulido

    2012-07-01

    Full Text Available El estudio muestra la relación entre la tradición medieval presente en la segunda escolástica y las consecuencias en el Barroco del humanismo renancentista, a partir de la referencia que hace Suárez a la risa en el Comentario al De anima. Aparece un desarrollo de la temática clásica y medieval sobre la risa, donde se tiene en cuenta la esfera intelectual del Humanismo científico y se señalan algunas temáticas que se tendrán presente en el Barroco moderno.

  3. El espacio y el tiempo en W. F. Flórez

    OpenAIRE

    Mandianes Castro, Manuel

    1990-01-01

    En las novelas de W. F. Flórez, como en la vida real de las aldeas gallegas, el espacio tiene muchos niveles: "lareira", aldea, parroquia, ciudad, Castilla, América, "fraga" y el subterráneo maravilloso, y el tiempo tiene cualidades: olor, sabor. Una lectura atenta de estas dos novelas demuestra que la oralidad forma parte importante de la narración; que el autor es, por lo mismo, en buena medida, un auténtico trasmisor de la tradición y que, por lo tanto, los etnólogos y antropólogos han de ...

  4. Ginés Pérez y su O Crux

    Directory of Open Access Journals (Sweden)

    Climent, José

    2002-12-01

    Full Text Available The exact names attributed to Ginés Pérez were never at all clear. His first appointment to the Cathedral in Valencia complicated matters even more when he was referred to with the Christian name of what appeared to be "Juan", which only added to the confusion as it lead us to believe that he was the only candidate to apply for that position. Today, however, we now know his true and full names: he was called Ginés Pérez de la Parra. We also know, for the first time, the exact date of his death. The quality of his compositions not only contributed to their popularity but gave rise to the works of other composers being attributed to him. The authorship of the majority of his compositions are considered anonymous, though they can be located in diverse archives. Even so, we cannot find a single copy of the O Crux attributed to his name, despite the numerous copies and their variants that abound in Region of Valencia.El nombre de Ginés Pérez nunca ha tenido la claridad de debía. Su primer nombramiento en la catedral de Valencia ya lo confunde añadiéndole el “Juan” lo que ya siembra confusión, además de sugerirnos que, posiblemente, fue llamado para ocupar el puesto sin oposición. Hoy conocemos toda su filiación: Ginés Pérez de la Parra, así como la fecha de su muerte, totalmente equivocada hasta ahora. La valía de sus composiciones motivó, además de la difusión de su obra, la atribución de composiciones de otros autores. La mayor parte de sus composiciones constan como "anónimos", si bien pueden encontrarse en distintos archivos. Del presente O crux, sin embargo, no hemos podido encontrar ninguna copia con su nombre, pese a las múltiples copias, con sus variantes, existentes en la Comunidad Valenciana.

  5. Transfrontera Crimes: Representations of the Juárez Femicides in Recent Fictional and Non-Fictional Accounts

    Directory of Open Access Journals (Sweden)

    Marietta Messmer

    2012-05-01

    Full Text Available In her article, Marrietta Messmer discusses the representation of the Juárez femicides and their traumatizing effects on the Juárez/El Paso community in four recently published accounts: Teresa Rodriguez's journalistic account The Daughters of Juarez (2007, the documentary Señorita Extraviada (2001 directed by Lourdes Portillo, the feature film Bordertown (2006, directed by Gregory Nava, and Alicia Gaspar de Alba's mystery novel Desert Blood: The Juárez Murders (2005. More specifically, she analyzes the degree to which these sources regard the femicides not merely as a Mexican problem but as a structural and highly significant transborder issue that has its roots in the region's current political and economic developments, as well as its pervasive social and cultural changes.

  6. Knowledge-based engineering of a PLC controlled telescope

    Science.gov (United States)

    Pessemier, Wim; Raskin, Gert; Saey, Philippe; Van Winckel, Hans; Deconinck, Geert

    2016-08-01

    As the new control system of the Mercator Telescope is being finalized, we can review some technologies and design methodologies that are advantageous, despite their relative uncommonness in astronomical instrumentation. Particular for the Mercator Telescope is that it is controlled by a single high-end soft-PLC (Programmable Logic Controller). Using off-the-shelf components only, our distributed embedded system controls all subsystems of the telescope such as the pneumatic primary mirror support, the hydrostatic bearing, the telescope axes, the dome, the safety system, and so on. We show how real-time application logic can be written conveniently in typical PLC languages (IEC 61131-3) and in C++ (to implement the pointing kernel) using the commercial TwinCAT 3 programming environment. This software processes the inputs and outputs of the distributed system in real-time via an observatory-wide EtherCAT network, which is synchronized with high precision to an IEEE 1588 (PTP, Precision Time Protocol) time reference clock. Taking full advantage of the ability of soft-PLCs to run both real-time and non real-time software, the same device also hosts the most important user interfaces (HMIs or Human Machine Interfaces) and communication servers (OPC UA for process data, FTP for XML configuration data, and VNC for remote control). To manage the complexity of the system and to streamline the development process, we show how most of the software, electronics and systems engineering aspects of the control system have been modeled as a set of scripts written in a Domain Specific Language (DSL). When executed, these scripts populate a Knowledge Base (KB) which can be queried to retrieve specific information. By feeding the results of those queries to a template system, we were able to generate very detailed "browsable" web-based documentation about the system, but also PLC software code, Python client code, model verification reports, etc. The aim of this paper is to

  7. Identificación de Chlamydophila abortus en un aborto ovino en Almoloya de Juárez, México

    OpenAIRE

    Edgardo Soriano-Vargas; Celene Salgado-Miranda; Juan Manuel Jiménez-Estrada; Marcela López-Hurtado; Fernando M. Guerra-Infante; Marcos R. Escobedo-Guerra

    2011-01-01

    ResumenSe identificó la presencia de Chlamydophila abortus en un aborto ovino procedente de Almoloya de Juárez, México.SummaryChlamydophila abortus was identified in an ovine aborted fetus from Almoloya de Juárez, México

  8. An Overlooked Contributor to a Unique Colombian Periodical. Enrique Pérez and the revista Hispania (1912-1916

    Directory of Open Access Journals (Sweden)

    Jane M. Rausch

    2018-04-01

    Full Text Available Hispania, a cultural periodical published in London between 1912 and 1916, was an important Colombian endeavor that reflected widely-shared Latin American concerns before and during the outbreak of the First World War. After a brief review of the role of literary periodicals in Colombian humanities, this essay analyzes the numerous contributions published by Enrique Pérez Lleras in Hispania. It concludes that Pérez believed Hispanic America could have avoided the threat of United States and/or European imperialism by spurning despotic rule, educating a governing elite, developing a trained civil service, and establishing strict controls over foreign investment and immigration.

  9. Avatares y desafíos del Instituto Juárez de Tabasco

    Directory of Open Access Journals (Sweden)

    Judith Pérez Castro

    2015-01-01

    Full Text Available El propósito de este trabajo es hacer un análisis de las circunstancias que rodearon la fundación y el desarrollo del Instituto Juárez de Tabasco. El artículo intenta mostrar la compleja situación que enfrentó este establecimiento educativo desde su creación en 1879 hasta las primeras décadas del siglo XX y el impacto que esto tuvo tanto en su oferta educativa como en su planta académica. Las principales variables que contextualizaron el desarrollo institucional fueron la difícil situación financiera, el cierre y apertura de sus carreras, la insuficiencia de matrícula, la débil organización de su cuerpo de profesores y la inestabilidad política estatal. A pesar de esto, el Instituto Juárez logra mantenerse y consolidarse como la principal opción educativa a nivel preparatoria y profesional en la entidad, hecho que aunado a un nuevo proceso de reforma hacen posible su ascenso como universidad hacia finales de los años cincuenta.

  10. Fundamentos teológicos de la censura en Francisco Suárez

    Directory of Open Access Journals (Sweden)

    Manuel Lázaro Pulido

    2017-09-01

    Full Text Available La censura es un acto recogido dentro del Código de Derecho Canónico. La teología subyacente se inscribe dentro de la historia de la salvación propia del concilio Vaticano II. Varios siglos antes, el maestro jesuita Francisco Suárez reflexionó sobre la censura en un voluminoso tratado (Disputationum de censuris…, en el que anticipa los elementos pertenecientes a la censura que aparecen en el actual CDC. Suárez realiza una lectura teológica en el que destaca el carácter medicinal de la censura, a partir de la lectura sacramental de la pena y desde un antropología de la voluntad, que supone una apuesta por la prevención del hombre y su salvación, antes que por su carácter penal, o si se quiere por dotar a la ley penal de un carácter salvífico.

  11. los caminos globales de Ciudad Juárez, Chihuahua-El Paso,Texas

    Directory of Open Access Journals (Sweden)

    Kathleen Staudt

    2006-01-01

    Full Text Available En este artículo se abordan temas selectos de políticas públicas, que dividen y unen a las mujeres en la frontera México-Estados Unidos, concentrados en el área metropolitana de Ciudad Juárez-El Paso, que conforma una "economía interdependiente", con una población superior a dos millones de personas, cuya mayoría comparte una herencia mexicana. De esta forma, se analiza una perspectiva compleja: la economía global en la que las maquiladoras de Ciudad Juárez están a la vanguardia; los cambios ideológicos de derecha en los gobiernos de México y Estados Unidos; con gobiernos divididos en filiación partidista así como en materia del federalismo, éste practicado en forma diferente por ambos, y en los cuales las voces de las mujeres tienen poca notoriedad. Sin embargo, ellas se organizan en grupos que representan sus intereses, aunque sus voces han sido marginadas en la sociedad y en la acción legislativa. Existen pocas organizaciones binacionales de mujeres, con algunas excepciones en los aspectos de salud y violencia.

  12. Tipos de tirano y resistencia en Francisco Suárez

    Directory of Open Access Journals (Sweden)

    Pablo Font Oporto

    2017-09-01

    Full Text Available El presente artículo pretende analizar la discusión que Francisco Suárez mantiene con las tesis contrarias a la distinción entre tipos de tirano en la cuestión del tiranicidio (Defensio fidei, Libro VI, capítulo IV, números 10-13. Para esta visión no le es lícito a una persona privada matar a ninguno de los dos tipos de tirano; sólo es posible darles muerte en legítima defensa, porque se entiende que en tal caso se actúa en ejercicio de autoridad pública. Suárez acaba admitiendo esta tesis en el número 13, lo que parece contradecirse con lo sostenido en el número 7, donde se aceptaba la muerte del usurpador por cualquier particular. Sin embargo, en el fondo mantiene la diferencia entre ambos tipos de tirano, por cuanto que en el caso del usurpador sostiene que siempre se dan las condiciones para alegar legítima defensa. Queda sin aclarar qué ocurre en tal caso con las condiciones dispuestas en los números 8 y 9.

  13. Diversas obras de Maricarmen Sánchez de Ramírez, en Venezuela

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo Editorial

    1981-02-01

    Full Text Available This paper deals with three important works of the Madrid born Venezuelan architect, Mari Carmen Sánchez de Ramírez. The first, and the only one completed at present, are seven onefamily dwellings grouped together in one volumetric and structural unit. The second is a tall office building, triangular in shape and composed of a thirty-two story tower, a ground floor public area and a ten floor mechanically operated parking garage. Third and last is the Multi-purpose Complex, located on the coast. It is made up of commercial areas, residential areas, offices, parking facilities and public areas.

    En este trabajo se recogen tres interesantes obras de la arquitecto venezolana, nacida en Madrid, Maricarmen Sánchez de Ramírez. La primera, única realizada hasta la fecha, trata de la agrupación de siete viviendas unifamiliares en una misma unidad volumétrica y estructural. La segunda corresponde a un alto edificio de oficinas, de sección triangular, y compuesto por una torre de 32 niveles, un cuerpo bajo de espacios públicos y un estacionamiento mecánico de 10 plantas de altura. La tercera y última comprende un complejo multiuso, situado en la costa, formado por zonas comerciales, áreas de vivienda, oficinas, estacionamiento y espacios públicos.

  14. British Nuclear Fuels PLC: report and accounts 1989-90

    International Nuclear Information System (INIS)

    1991-01-01

    Members of the Energy Select Committee put questions to representatives of British Nuclear Fuels PLC (BNFL) about the annual report and accounts 1989-90. Questions concerned the late publication of the accounts, BNFLs role in the downfall of the nuclear privatisation, government assistance to the nuclear industry, the price BNFL charges for fuel reprocessing and the process of laser isotope separation of uranium. The committee also asked about the rate of return in BNFL's assets as a percentage, Sellafield's potential as a site for a deep repository for radioactive wastes and the 6000 boreholes that MREX will drill at Sellafield. The commercial case for reprocessing is made. Feasibility studies for possible new reactions at Sellafield and Chapel Cross have been carried out. On the whole the Energy Committee were satisfied with the replies from BNFL. (UK)

  15. Formal verification of complex properties on PLC programs

    CERN Document Server

    Darvas, D; Voros, A; Bartha, T; Blanco Vinuela, E; Gonzalez Suarez, V M

    2014-01-01

    Formal verification has become a recommended practice in the safety-critical application areas. However, due to the complexity of practical control and safety systems, the state space explosion often prevents the use of formal analysis. In this paper we extend our former verification methodology with effective property preserving reduction techniques. For this purpose we developed general rule-based reductions and a customized version of the Cone of Influence (COI) reduction. Using these methods, the verification of complex requirements formalised with temporal logics (e.g. CTL, LTL) can be orders of magnitude faster. We use the NuSMV model checker on a real-life PLC program from CERN to demonstrate the performance of our reduction techniques.

  16. PLC-Based Pressure Control in Multi-Pump Applications

    Directory of Open Access Journals (Sweden)

    Vodovozov Valery

    2015-12-01

    Full Text Available The paper is devoted to the centrifugal pumps represented the most popular type of pumping equipment used in different areas. The pressure control approach for variable speed driven (VSD parallel connected centrifugal pumps is reported. The goal of the study is optimization of some quality indices, such as efficiency, consumed power, productivity, energy carrier temperature, heat irradiation, etc. One of them – efficiency – has been studied in the paper more carefully. The mathematical model of pumping process is discussed and a vector-matrix description of the multi-pump application is given. The program-based pressure control system is developed which productivity is changed by regulating the number of working pumps. The paper introduces new pressure control algorithms based on the working point estimation intended for programmable logical controllers (PLC. Experiments prove correctness of the offered methodology.

  17. Development of multifunctional radiation monitoring instrument based on PLC technology

    International Nuclear Information System (INIS)

    Li Ziqiang; Zhu Yuye; Zhuang Min

    2007-01-01

    This eight-channel multifunctional Radiation Monitoring Instrument is developed by making use of the built-in high-speed counters and the powerful instruction system of the SIEMES SIMATICS S7 series Programmable Logic Controllers (PLC) to record and process the pulse signal output by the detectors. The instrument with functions, such as analog and digital display, digital storage of digital data, pulse signal generator, network communication, can connect various types of pulse detectors. The initial process can be translated between Graduation Apparatus method and Formula method. the logicality of the high-dosage warning system is processed itself. The signal output will drive the alarm lights and bell directly. This paper mainly describes the configuration, programming and feature of the instrument. (authors)

  18. El cine de Pérez Arroyo y los proyectores de juguete de posguerra / The Cinema of Pérez Arroyo and the Postwar Toy Projectors

    Directory of Open Access Journals (Sweden)

    Raúl González-Monaj

    2016-08-01

    Full Text Available La historia de la animación de posguerra en nuestro país, conocida como «la edad dorada», siempre ha resultado fascinante por el contexto en que se desarrolló y por ello se ha convertido en objeto de estudio, pero todavía quedan algunos episodios menores por ultimar. El presente trabajo pretende completar una de esas lagunas, la referente a la obra de Joaquín Pérez Arroyo y su posterior relación con el cine doméstico de juguete y su entorno. A través de esta investigación profundizaremos en las películas de este animador, apenas conocido, y en su decisiva participación en dos de los ejemplos más populares del cine de juguete nacional: Payá y Jefe. Casos que estuvieron conectados gracias a él y que se mueven entre el cine de papel y los 35 mm, entre el salón comedor y la sala de cine, entre Mikito y Quinito.Palabras clave: cortometraje de animación, CIFESA, proyector de juguete, Payá, Saludes, Jefe, Quinito. AbstractThe story of the postwar animation in Spain, known as the « Golden Age», has always been fascinating due to the context where it happened and so, it became object of study. Nevertheless, there are still some episodes to be finished. This study aims to complete one of these gaps as the one related to Joaquín Pérez Arroyo's work and his later connection to home cinema as a toy and its context. All through this research, we'll analyze films of this barely known author and his decisive participation in two of the most popular toy cinema examples in Spain: Payá and Jefe. Thanks to him, these two cases became connected, two worlds that coexist within the paper film and the 35 mm, between the living room and the movie theatre, between Mikito and Quinito.Keywords: animation short film, CIFESA, toy projector, Payá, Saludes, Jefe, Quinito.

  19. Normal and pathological NMR imaging aspects of the posterolateral corner (PLC) of the knee

    International Nuclear Information System (INIS)

    Tardieu, M.; Lazennec, J.Y.; Christel, P.; Brasseur, J.L.; Roger, B.; Grenier, P.

    1995-01-01

    The purpose of the study is to compare normal PLC (limits lateral condyle anterior sub luxation) anatomy and its magnetic resonance imaging (MRI) appearance, with the various lesions observed in MRI, from the simple popliteus tendinous contusion to the complete PLC rupture. For this specific work on PLC lesions, we selected 61 examinations among the traumatic knees explored during the last 3 years. Surgical correlation is obtained for the 61 patients. MRI examinations are performed on a 0.5 T. unit. Normal PLC anatomy is compared to the dissection of 4 anatomic subjects. Normal MRI slices are evaluated with this reference analysis. The principle anatomical structures of the PLC include the lateral collateral ligament, the popliteus tendon, the arcuate ligament, the fabello fibular ligament, the posterolateral condylar capsule, and the posterior horn of the lateral meniscus. Surgical findings confirm PLC lesion for 58 patients with 3 false positive. Diagnosis of these lesions is important because chronical posterolateral laxity is secondary to the destabilization of lateral condyle. Unrecognized and untreated posterolateral instability may result in failure of ACL (limits lateral condyle posterior sub-luxation) reconstruction. When clinical tests are doubtful or complex, or the examination very painful, MRI evaluates completely the traumatic knee and particularly the PLC. (authors). 3 refs., 26 figs

  20. Control Systems of Rubber Dryer Machinery Components Using Programmable Logic Control (PLC)

    Science.gov (United States)

    Hendra; Yulianto, A. S.; Indriani, A.; Hernadewita; Hermiyetti

    2018-02-01

    Application of programmable logic control (PLC) is widely used on the control systems in the many field engineering such as automotive, aviation, food processing and other industries [1-2]. PLC is simply program to control many automatic activity, easy to use, flexible and others. PLC using the ladder program to solve and regulated the control system component. In previous research, PLC was used for control system of rotary dryer machine. In this paper PLC are used for control system of motion component in the rubber dryer machinery. Component of rubber dryer machine is motors, gearbox, sprocket, heater, drying chamber and bearing. Principle working of rubber dryer machinery is wet rubber moving into the drying chamber by sprocket. Sprocket is driven by motors that conducted by PLC to moving and set of wet rubber on the drying chamber. Drying system uses greenhouse effect by making hanger dryer design in the form of line path. In this paper focused on motion control system motors and sensors drying rubber using PLC. The results show that control system of rubber dryer machinery can work in accordance control input and the time required to dry the rubber.

  1. El discurso político de Adolfo Suárez durante la Transición. Aplicaciones metodológicas / The political discourse of Adolfo Suárez in the process of Democratic Transition. Methodological applications

    Directory of Open Access Journals (Sweden)

    Antonio Pantoja Chaves

    2009-06-01

    Full Text Available Resumen: El presente artículo se centra, como primera toma de contacto , en el análisis del discurso político de Adolfo Suárez y de su componente ideológico durante la Transición, dentro del conjunto de las diferentes fuerzas políticas que más protagonismo tuvieron a lo largo de todo el proceso. La coalición de personalidades políticas que se reunieron en torno a la formación de la Unión de Centro Democrático, con la figura destacada del joven presidente Adolfo Suárez, presenta, no ya sólo para aquella época sino en la actualidad, un interés constante como objeto de estudio a partir de nuestro particular análisis metodológico. Summary: The present article concentrates, as an introduction, in the analysis of the political discourse of Adolfo Suárez and his ideological component during the Transition, within the set of the most outstanding political forces throughout the whole process. The coalition of political personalities that gathered in the formation of the Unión de Centro Democrático, with the prominent figure of young president Adolfo Suárez, is, not only for that one time but at present, a constant interest as object of study from our particular methodological analysis.

  2. Application of PLC timing control in the neutral beam injector of HT-7

    International Nuclear Information System (INIS)

    Song Shihua; Liu Zhimin; Liu Sheng; Hu Chundong

    2006-01-01

    HT-7 tokamak high power Neutral Beam Injector heating system runs in the mode of pulse timing-control of PLC. The thesis discusses the theory about the operation for the experiment of discharge, which is controlled by PLC logical connection and introduces excellent user-friendly operating interface and the development of the ladder application program and upper monitor program in the VB6.0 environment. Monitor the conditions of power and facility real time by the upper monitor interface. The application of PLC control system ensures the experiment facility running safely and convenient for modifying and setting the parameter simply during the course of experiment. (authors)

  3. Development of a Measurement and Control System for a 40l/h Helium Liquefier based on Siemens PLC S7-300

    Science.gov (United States)

    Li, J.; Liu, L. Q.; Xu, X. D.; Liu, T.; Li, Q.; Hu, Z. J.; Wang, B. M.; Xiong, L. Y.; Dong, B.; Yan, T.

    A 40l/h Helium Liquefier has been commissioned by the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences. A measurement and control system based on Siemens PLC S7-300 for this Helium Liquefier is developed. Proper sensors are selected, for example, three types of transmitters are adopted respectively according to detailed temperature measurement requirements. Siemens S7-300 PLC CPU315-2PN/DP operates as a master station and three sets of ET200 M DP remote expand I/O operate asslave stations. Profibus-DP field communication is used between the master station and the slave stations. The upper computer HMI(Human Machine Interface) is compiled using Siemens configuration software WinCC V7.0. The upper computer communicates with PLC by means of industrial Ethernet. A specific control logic for this Helium Liquefier is developed. The control of the suction and discharge pressures of the compressor and the control of the turbo-expanders loop are being discussed in this paper. Following the commissioning phase, the outlet temperature of the second stage turbine has reached 8.6K and the temperature before the throttle valve has reached 13.1K.

  4. Measurement and control system for cryogenic helium gas bearing turbo-expander experimental platform based on Siemens PLC S7-300

    Science.gov (United States)

    Li, J.; Xiong, L. Y.; Peng, N.; Dong, B.; Wang, P.; Liu, L. Q.

    2014-01-01

    An experimental platform for cryogenic Helium gas bearing turbo-expanders is established at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences. This turbo-expander experimental platform is designed for performance testing and experimental research on Helium turbo-expanders with different sizes from the liquid hydrogen temperature to the room temperature region. A measurement and control system based on Siemens PLC S7-300 for this turbo-expander experimental platform is developed. Proper sensors are selected to measure such parameters as temperature, pressure, rotation speed and air flow rate. All the collected data to be processed are transformed and transmitted to S7-300 CPU. Siemens S7-300 series PLC CPU315-2PN/DP is as master station and two sets of ET200M DP remote expand I/O is as slave station. Profibus-DP field communication is established between master station and slave stations. The upper computer Human Machine Interface (HMI) is compiled using Siemens configuration software WinCC V6.2. The upper computer communicates with PLC by means of industrial Ethernet. Centralized monitoring and distributed control is achieved. Experimental results show that this measurement and control system has fulfilled the test requirement for the turbo-expander experimental platform.

  5. Development of a measurement and control system for a 10 kW@20 K refrigerator based on Siemens PLC S7-300

    Science.gov (United States)

    Li, J.; Liu, L. Q.; Liu, T.; Xu, X. D.; Dong, B.; Lu, W. H.; Pan, W.; Wu, J. H.; Xiong, L. Y.

    2017-02-01

    A 10 kW@20 K refrigerator has been established by the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences. A measurement and control system based on Siemens PLC S7-300 for this 10 kW@20 K refrigerator is developed. According to the detailed measurement requirements, proper sensors and transmitters are adopted. Siemens S7-300 PLC CPU315-2 PN/DP operates as a master station. Two sets of ET200M DP remote expand I/O, one power meter, two compressors and one vacuum gauge operate as slave stations. Profibus-DP field communication and Modbus communication are used between the master station and the slave stations in this control system. The upper computer HMI (Human Machine Interface) is compiled using Siemens configuration software WinCC V7.0. The upper computer communicates with PLC by means of industrial Ethernet. After commissioning, this refrigerator has been operating with a 10 kW of cooling power at 20 K for more than 72 hours.

  6. Measurement and control system for cryogenic helium gas bearing turbo-expander experimental platform based on Siemens PLC S7-300

    Energy Technology Data Exchange (ETDEWEB)

    Li, J.; Xiong, L. Y.; Peng, N.; Dong, B.; Liu, L. Q. [Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190 (China); Wang, P. [Beijing Sciample Technology Co., Ltd., Beijing, 100190 (China)

    2014-01-29

    An experimental platform for cryogenic Helium gas bearing turbo-expanders is established at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences. This turbo-expander experimental platform is designed for performance testing and experimental research on Helium turbo-expanders with different sizes from the liquid hydrogen temperature to the room temperature region. A measurement and control system based on Siemens PLC S7-300 for this turbo-expander experimental platform is developed. Proper sensors are selected to measure such parameters as temperature, pressure, rotation speed and air flow rate. All the collected data to be processed are transformed and transmitted to S7-300 CPU. Siemens S7-300 series PLC CPU315-2PN/DP is as master station and two sets of ET200M DP remote expand I/O is as slave station. Profibus-DP field communication is established between master station and slave stations. The upper computer Human Machine Interface (HMI) is compiled using Siemens configuration software WinCC V6.2. The upper computer communicates with PLC by means of industrial Ethernet. Centralized monitoring and distributed control is achieved. Experimental results show that this measurement and control system has fulfilled the test requirement for the turbo-expander experimental platform.

  7. 75 FR 4879 - Juan E. Pérez Monté, M.D.; Confirmatory Order Modifying License (Effective Immediately)

    Science.gov (United States)

    2010-01-29

    ... the Health Physics Society, and the Journal of Nuclear Medicine; and, 2. Dr. P[eacute]rez will also... national meetings of the Health Physics Society and the Society of Nuclear Medicine. If the request to make... following: Galenus (Puerto Rico), the Journal of the Health Physics Society, and the Journal of Nuclear...

  8. Infermeria Medicoquirúrgica II. Temari corresponent al Professor Francisco Pérez Dolz. Curs 2017-2018

    OpenAIRE

    Pérez Dolz, Francisco

    2017-01-01

    El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València. Temari corresponent al professor Francisco Pérez Dolz

  9. Infermeria Médico-Quirúrgica II. Temari corresponent al Professor Francisco Pérez Dolz. Curs 2017-2018

    OpenAIRE

    Pérez Dolz, Francisco

    2017-01-01

    El document forma part dels materials docents programats mitjançant l'ajut del Servei de Política Lingüística de la Universitat de València Infermeria Médico-Quirúrgica II. Temari corresponent al Professor Francisco Pérez Dolz. Curs 2017-2018.

  10. Performance analysis of the PLC (Power Line Communication) in medium voltage electrical networks; Analise de desempenho de sistemas PLC em redes eletricas de media tensao

    Energy Technology Data Exchange (ETDEWEB)

    Mota, A.A.; Paleta, R. [Pontificia Universidade Catolica de Campinas (PUC-Campinas), SP (Brazil)], E-mail: amota@puc-campinas.edu.br; Mota, L.T.M.; Ricardo, R.A. [Indelmatec Engenharia, Campinas, SP (Brazil)], E-mail: mota@indelmatec.com.br

    2009-07-01

    Nowadays, the information access in communication networks is widely explored due to the increase of Internet users. In this context, the PLC (Power Line Communication) technology is an alternative for data transmission. This technology is based on the usage of transmission/distribution power lines for data transmission. However there are some problems related to the usage of this technology: adequate data transmission rates and generation of acceptable levels of electromagnetic interference (EMI). This work had the objective of studying the performance of PLC systems in medium voltage electrical networks, through the assess of data transmission rates and the generated EMI. Tests were carried out in a test field that corresponded to a medium voltage electrical network and the obtained results show that, under some circumstances, the PLC system does not reach the existent technical recommendations. (author)

  11. PLAT: An Automated Fault and Behavioural Anomaly Detection Tool for PLC Controlled Manufacturing Systems

    Directory of Open Access Journals (Sweden)

    Arup Ghosh

    2016-01-01

    Full Text Available Operational faults and behavioural anomalies associated with PLC control processes take place often in a manufacturing system. Real time identification of these operational faults and behavioural anomalies is necessary in the manufacturing industry. In this paper, we present an automated tool, called PLC Log-Data Analysis Tool (PLAT that can detect them by using log-data records of the PLC signals. PLAT automatically creates a nominal model of the PLC control process and employs a novel hash table based indexing and searching scheme to satisfy those purposes. Our experiments show that PLAT is significantly fast, provides real time identification of operational faults and behavioural anomalies, and can execute within a small memory footprint. In addition, PLAT can easily handle a large manufacturing system with a reasonable computing configuration and can be installed in parallel to the data logging system to identify operational faults and behavioural anomalies effectively.

  12. 78 FR 6206 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-01-30

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT..., RB211-Trent 977-84, RB211-Trent 977B-84 and RB211-Trent 980-84 turbofan engines. This AD requires on...

  13. 77 FR 20987 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-04-09

    ... Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... the Federal Register. That AD applies to RB211-Trent 800 series turbofan engines. The last comment...

  14. The application of PLC automatic control system for resin transfer in pulsed elution

    International Nuclear Information System (INIS)

    Long Maoxiong

    2001-01-01

    An application of Programmable Logic Controller (PLC) in automatic control system for resin transfer in pulsed elution column is described. The design principle as well as hardware and software are also described in detail

  15. Modelling and Formal Verification of Timing Aspects in Large PLC Programs

    CERN Document Server

    Fernandez Adiego, B; Blanco Vinuela, E; Tournier, J-C; Gonzalez Suarez, V M; Blech, J O

    2014-01-01

    One of the main obstacle that prevents model checking from being widely used in industrial control systems is the complexity of building formal models out of PLC programs, especially when timing aspects need to be integrated. This paper brings an answer to this obstacle by proposing a methodology to model and verify timing aspects of PLC programs. Two approaches are proposed to allow the users to balance the trade-off between the complexity of the model, i.e. its number of states, and the set of specifications possible to be verified. A tool supporting the methodology which allows to produce models for different model checkers directly from PLC programs has been developed. Verification of timing aspects for real-life PLC programs are presented in this paper using NuSMV.

  16. A formal safety analysis for PLC software-based safety critical system using Z

    International Nuclear Information System (INIS)

    Koh, Jung Soo; Seong, Poong Hyun

    1997-01-01

    This paper describes a formal safety analysis technique which is demonstrated by performing empirical formal safety analysis with the case study of beamline hutch door Interlock system that is developed by using PLC (Programmable Logic Controller) systems at the Pohang Accelerator Laboratory. In order to perform formed safety analysis, we have built the Z formal specifications representation from user requirement written in ambiguous natural language and target PLC ladder logic, respectively. We have also studied the effective method to express typical PLC timer component by using specific Z formal notation which is supported by temporal history. We present a formal proof technique specifying and verifying that the hazardous states are not introduced into ladder logic in the PLC-based safety critical system

  17. PLAT: An Automated Fault and Behavioural Anomaly Detection Tool for PLC Controlled Manufacturing Systems.

    Science.gov (United States)

    Ghosh, Arup; Qin, Shiming; Lee, Jooyeoun; Wang, Gi-Nam

    2016-01-01

    Operational faults and behavioural anomalies associated with PLC control processes take place often in a manufacturing system. Real time identification of these operational faults and behavioural anomalies is necessary in the manufacturing industry. In this paper, we present an automated tool, called PLC Log-Data Analysis Tool (PLAT) that can detect them by using log-data records of the PLC signals. PLAT automatically creates a nominal model of the PLC control process and employs a novel hash table based indexing and searching scheme to satisfy those purposes. Our experiments show that PLAT is significantly fast, provides real time identification of operational faults and behavioural anomalies, and can execute within a small memory footprint. In addition, PLAT can easily handle a large manufacturing system with a reasonable computing configuration and can be installed in parallel to the data logging system to identify operational faults and behavioural anomalies effectively.

  18. Developing a PLC-friendly state machine model: lessons learned

    Science.gov (United States)

    Pessemier, Wim; Deconinck, Geert; Raskin, Gert; Saey, Philippe; Van Winckel, Hans

    2014-07-01

    Modern Programmable Logic Controllers (PLCs) have become an attractive platform for controlling real-time aspects of astronomical telescopes and instruments due to their increased versatility, performance and standardization. Likewise, vendor-neutral middleware technologies such as OPC Unified Architecture (OPC UA) have recently demonstrated that they can greatly facilitate the integration of these industrial platforms into the overall control system. Many practical questions arise, however, when building multi-tiered control systems that consist of PLCs for low level control, and conventional software and platforms for higher level control. How should the PLC software be structured, so that it can rely on well-known programming paradigms on the one hand, and be mapped to a well-organized OPC UA interface on the other hand? Which programming languages of the IEC 61131-3 standard closely match the problem domains of the abstraction levels within this structure? How can the recent additions to the standard (such as the support for namespaces and object-oriented extensions) facilitate a model based development approach? To what degree can our applications already take advantage of the more advanced parts of the OPC UA standard, such as the high expressiveness of the semantic modeling language that it defines, or the support for events, aggregation of data, automatic discovery, ... ? What are the timing and concurrency problems to be expected for the higher level tiers of the control system due to the cyclic execution of control and communication tasks by the PLCs? We try to answer these questions by demonstrating a semantic state machine model that can readily be implemented using IEC 61131 and OPC UA. One that does not aim to capture all possible states of a system, but rather one that attempts to organize the course-grained structure and behaviour of a system. In this paper we focus on the intricacies of this seemingly simple task, and on the lessons that we

  19. En femenino: Apuntes sobre la obra de Esperanza Barroso y Raquel Ramírez

    Directory of Open Access Journals (Sweden)

    Andrés Leonardo Caballero Piza

    2016-03-01

    Full Text Available El siguiente artículo proporciona algunas coordenadas de interpretación para la obra de las artistas santandereanas Esperanza Barroso y Raquel Ramírez, desde los conceptos de currículo oculto y micropolítica, y desde diversas fuentes documentales de carácter historiográfico (catálogos, folletos, recortes de prensa y entrevistas. Mediante el concepto de currículo oculto se reconstruye de forma general el ámbito en que fueron educadas ambas artistas, mientras que con el de micropolítica se inscriben sus obras en las preocupaciones del arte colombiano de los setentas, que giraron en torno de los modos de representación del cuerpo desde el deseo individual, la emancipación subjetiva y las restricciones jurídicas del Estado.

  20. Impactos de la maquila en el medio ambiente de Ciudad Juárez

    Directory of Open Access Journals (Sweden)

    Centro de Estudios Regionales y Comunicación Alternativa (CERCA

    2009-01-01

    Full Text Available En el presente trabajo analizamos, de manera general, los cambios que ha generado el proyecto maquilador en Ciudad Juárez. Primero observamos su efecto sobre el crecimiento de la mancha urbana, la dotación de servicios, etcétera, su repercusión en el medio ambiente y las condiciones de vida de la población juarense. Nos planteamos, además, ubicar los principales problemas causados por el desarrollo de la industria maquiladora, particularmente en lo relativo a los desechos tóxicos y nucleares, así como apuntar la tendencia del proyecto económico-urbano que ésta ha impuesto en nuestra ciudad, para concluir con una breve presentación de las reacciones populares y algunas propuestas ante el problema. Asimismo, exponemos los problemas de contaminación que resultan de otras actividades no vinculadas a la industria maquiladora.

  1. Social acceptability urban form and sustainability in urban neighborhoods in Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    Claudia Gabriela Vargas Fernández

    2016-11-01

    Full Text Available In the field of urban planning, questioning around sustainability and the possibility of sustainable urban planning has led to a new set of approaches and discussions that impact studies on urban form and sustainable livelihoods. This approach characterized the work presented by Mike Jenks and Colin Jones (2010, Dimensions of the Sustainable City, where a set of variables are presented about urban sustainability from the neighbourhood level of analysis. In that sense, this article proposes the analysis of three social housing neighborhoods in Ciudad Juárez, Chihuahua, México, integrating aspects of urban form and social acceptability, in order to understand the relationship between the physical and sociocultural dimensions of the concept of urban sustainability.

  2. Street Art at the Border: Representations of Violence and Death in Ciudad Juárez

    Directory of Open Access Journals (Sweden)

    Diana Alejandra SILVA LONDOÑO

    2016-01-01

    Full Text Available El objetivo de este artículo es realizar una lectura interpretativa de las tramas de sentido de la violencia y la muerte violenta en Ciudad Juárez, a partir de su representación en el arte urbano. Por medio de entrevistas en profundidad, observación participante, recorridos urbanos y regis - tro fotográf ico de la producción artística de los colectivos de arte urbano fronterizo se explora cómo las/os jóvenes se conciben a sí mismas/os, perciben su experiencia biográf ica y cuáles son sus márgenes de agencia desde las prácticas artísticas en contextos de violencia.

  3. Ciudad Juárez en los sesenta: la estructura urbana en transición

    Directory of Open Access Journals (Sweden)

    Luis Enrique Gutiérrez Casas

    2009-01-01

    Full Text Available El presente trabajo está estructurado de tal forma que puedan cubrirse, de manera general, los distintos aspectos que consideramos explican el problema de la vivienda en Ciudad Juárez. En la primera parte planteamos el problema de la vivienda desde varios aspectos, déficit, bajos salarios y pérdida del poder adquisitivo de los trabajadores, fluctuación del mercado inmobiliario, crecimiento poblacional, cambios en la composición del mercado laboral, flujos migratorios, políticas económicas y de vivienda. En la segunda parte centramos nuestro análisis en los AHI. Sus rasgos principales son las formas irregulares de apropiación del suelo urbano, la autoconstrucción y la introducción ilegal de servicios públicos, entre otros.

  4. residenciales de madres sin cónyuge en Ciudad Juárez

    Directory of Open Access Journals (Sweden)

    Claudia Zamorano Villarreal

    2006-01-01

    Full Text Available Se abordarán los itinerarios y las prácticas residenciales de madres sin cónyuge en Ciudad Juárez, ese punto de convergencia de inmigrantes nacionales y capitales internacionales y ahora, una de las más importantes ciudades maquiladoras del país. A partir de 51 historias de vida con trabajadoras de esta industria, se comparan los itinerarios residenciales de familias monoparentales con los de familias biparentales. Esta comparación permite ver las desventajas de las primeras para ingresar al mercado de la vivienda, que no se explican únicamente por factores de orden económico, sino también moral y práctico.

  5. Homicidio masculino en Ciudad Juárez. Costos de las masculinidades subordinadas

    Directory of Open Access Journals (Sweden)

    Salvador Cruz

    2011-01-01

    Full Text Available El homicidio masculino agudizado en Ciudad Juárez en los años 2008 y 2009, con casi cuatro mil asesinatos, constituye la expresión más evidente de la violencia urbana. Dicha violencia ha tomado rostro en hombres, en su mayoría jóvenes y marginados. Los datos muestran un comportamiento del homicidio doloso asimilado a significados relacionados con la masculinidad más tradicional, cuyo costo recae en la vida misma. Se observa a través de los escenarios, los horarios en que ocurren los eventos y las formas de ejecución, que esta práctica delictiva puede ser comprendida como una actividad masculina que explota una subjetividad proclive a la violencia y que reproduce las asimetrías de género y significados asociados a la dicotomía masculino-femenino.

  6. Misery, Hope and Humanity in Benito Pérez Galdós's Misericordia (1897

    Directory of Open Access Journals (Sweden)

    María Isabel Rovira Martínez de Contrasta

    2014-10-01

    Full Text Available Amidst the great turmoil, appalling conditions and ineffable hardships of impoverished nineteenth-century Spain, the realist writer Benito Pérez Galdós brilliantly weaves a tale of humanity and friendship in Misericordia, a story about the compassion, unfaltering loyalty and devotion of the main character, Benina, towards her neighbors. The plot revolves strategically around the lowest and most economically deprived social group, the beggars, thus separating Galdós's Misericordia from the work of his contemporaries. In this fictional work, the lower class is given great social visibility via Benina, who constitutes the embodiment of all the values, ideology and principles the writer seeks to praise and emphasize in the story.

  7. Design of EAST LHCD high power supply feedback control system based on PLC

    International Nuclear Information System (INIS)

    Hu Huaichuan; Shan Jiafang

    2009-01-01

    Design of EAST LHCD -35kV/5.6MW high power supply feedback control system based on PLC is described. Industrial computer and PLC are used to control high power supply in the system. PID arithmetic is adopted to achieve the feedback control of voltage of high power supply. Operating system is base on real-time operating system of QNX. Good controlling properties and reliable protective properties of the feedback control system are proved by the experiment results. (authors)

  8. 77 FR 75831 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-12-26

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... certain serial numbers (S/Ns) of Rolls-Royce plc (RR) RB211-Trent 768-60, 772- 60, and 772B-60 turbofan... use any of the RB211-Trent 768-60, 772-60, and 772B-60 turbofan engines listed by S/N in this AD...

  9. Operating experiences with programmable logic controller (PLC) system of Indian Pressurised Heavy Water Reactors (PHWR)

    International Nuclear Information System (INIS)

    Ughade, A.V.; Singh, Ranjeet; Bhattacharya, P.K.; Kulkarni, R.K.; Chandra, Umesh

    2005-01-01

    PLC system was introduced for the first time in Kaiga-1,2 and RAPS-3,4 Nuclear Power Plants (NPPs) for Station Logic Control of Non Safety Related (NSR) and Safety related (SR) systems. However, the safety system logics are still relay based. The experience on the deployment of PLC system, which is computer-based, has brought out various implementation issues. This paper give details of such experiences, the solutions emerged and applied for plants under operation/construction. (author)

  10. Bit rate maximization for multicast LP-OFDM systems in PLC context

    OpenAIRE

    Maiga , Ali; Baudais , Jean-Yves; Hélard , Jean-François

    2009-01-01

    ISBN: 978-88-900984-8-2.; International audience; In this paper, we propose a new resource allocation algorithm based on linear precoding technique for multicast OFDM systems. Linear precoding technique applied to OFDM systems has already proved its ability to significantly increase the system throughput in a powerline communication (PLC) context. Simulations through PLC channels show that this algorithm outperforms the classical multicast method (up to 7.3% bit rate gain) and gives better pe...

  11. The YvfTU Two-component System is involved in plcR expression in Bacillus cereus

    Directory of Open Access Journals (Sweden)

    Nguyen-the Christophe

    2008-10-01

    Full Text Available Abstract Background Most extracellular virulence factors produced by Bacillus cereus are regulated by the pleiotropic transcriptional activator PlcR. Among strains belonging to the B. cereus group, the plcR gene is always located in the vicinity of genes encoding the YvfTU two-component system. The putative role of YvfTU in the expression of the PlcR regulon was therefore investigated. Results Expression of the plcR gene was monitored using a transcriptional fusion with a lacZ reporter gene in a yvfTU mutant and in its B. cereus ATCC 14579 parental strain. Two hours after the onset of the stationary phase, a stage at which the PlcR regulon is highly expressed, the plcR expression in the yvfTU mutant was only 50% of that of its parental strain. In addition to the reduced plcR expression in the yvfTU mutant, a few members of the PlcR regulon showed a differential expression, as revealed by transcriptomic and proteomic analyses. The virulence of the yvfTU mutant in a Galleria mellonella insect model was slightly lower than that of the parental strain. Conclusion The YvfTU two-component system is not required for the expression of most of the virulence factors belonging to the PlcR regulon. However, YvfTU is involved in expression of plcR, a major regulator of virulence in B. cereus.

  12. Development of Multipurpose PLC trainer for the simulator of reactor safety system

    International Nuclear Information System (INIS)

    Syaiful Bakhri; Deswandri; Ahmad Abtokhi

    2014-01-01

    PLC becomes one of the essential components for the current type of reactor which based on digital instrumentation and control. Several studies have demonstrated the promising results including the implementation of PLC's for RSG-GAS research reactor. However, research for the safety and reliability analysis can not be carried out freely in the existing systems.Therefore, this research aims to develop a PLC trainer employing micro PLC OMRON CP1MA which can be useful for simulator of various topics in reactor safety. Two experimental tests were carried out to show the PLC’s performances. The first experimental testing implementing reactor protection system of research reactor RSG-GAS shows the capacity of PLC system to identify the initiator of the SCRAM logic as well as giving a promptly response. Secondly, the application of PLC to controls the water level in dual reservoir system simulation, demonstrates the simplicity of the operation and design while maintaining the best performances. (author)

  13. A formal safety analysis for PLC software-based safety critical system using Z

    International Nuclear Information System (INIS)

    Koh, Jung Soo

    1997-02-01

    This paper describes a formal safety analysis technique which is demonstrated by performing empirical formal safety analysis with the case study of beamline hutch door Interlock system that is developed by using PLC (Programmable Logic Controller) systems at the Pohang Accelerator Laboratory. In order to perform formal safety analysis, we have built the Z formal specifications representation from user requirement written in ambiguous natural language and target PLC ladder logic, respectively. We have also studied the effective method to express typical PLC timer component by using specific Z formal notation which is supported by temporal history. We present a formal proof technique specifying and verifying that the hazardous states are not introduced into ladder logic in the PLC-based safety critical system. And also, we have found that some errors or mismatches in user requirement and final implemented PLC ladder logic while analyzing the process of the consistency and completeness of Z translated formal specifications. In the case of relatively small systems like Beamline hutch door interlock system, a formal safety analysis including explicit proof is highly recommended so that the safety of PLC-based critical system may be enhanced and guaranteed. It also provides a helpful benefits enough to comprehend user requirement expressed by ambiguous natural language

  14. Optical interconnection for a polymeric PLC device using simple positional alignment.

    Science.gov (United States)

    Ryu, Jin Hwa; Kim, Po Jin; Cho, Cheon Soo; Lee, El-Hang; Kim, Chang-Seok; Jeong, Myung Yung

    2011-04-25

    This study proposes a simple cost-effective method of optical interconnection between a planar lightwave circuit (PLC) device chip and an optical fiber. It was conducted to minimize and overcome the coupling loss caused by lateral offset which is due to the process tolerance and the dimensional limitation existing between PLC device chips and fiber array blocks with groove structures. A PLC device chip and a fiber array block were simultaneously fabricated in a series of polymer replication processes using the original master. The dimensions (i.e., width and thickness) of the under-clad of the PLC device chip were identical to those of the fiber array block. The PLC device chip and optical fiber were aligned by simple positional control for the vertical direction of the PLC device chip under a particular condition. The insertion loss of the proposed 1 x 2 multimode optical splitter device interconnection was 4.0 dB at 850 nm and the coupling loss was below 0.1 dB compared with single-fiber based active alignment.

  15. Arbitration Award of ICSID on the Investment Disputes of Churchill Mining PLC v. Republic of Indonesia

    Directory of Open Access Journals (Sweden)

    Yordan Gunawan

    2017-03-01

    Full Text Available The research is aimed at analyzing the ICSID (International Centre Settlement Investment Dispute decision in solving a dispute between Churchill Mining PLC and the Government of the Republic of Indonesia. The case brought to the public attention, because mining license owned by PT. Ridlatama which acquired from Churchill Mining PLC had been revocated. Churchill Mining PLC holds 75% share of PT. Ridlatama and it suffered losses caused by the revocation of its mining license. Churchill Mining PLC filed the case to the local court but it failed. Churchill Mining PLC then sought ruling from International arbitration or ICSID. On December 6, 2016, ICSID issued a decision that clearly threw out Churchill Mining PLC claim. ICSID, the World Bank court, ordered the firm to pay a total of US$.9.446.528 in cost to the Government of the Republic of Indonesia. It is based on the evidences that the UK-Australia company did the fraud and had document forgery of coal mining permit in East Kutai, Indonesia. So the firm has violated the Bilateral Investment Treaties between Indonesia-UK and Indonesia-Australia.

  16. Virtual Modular Redundancy of Processor Module in the PLC

    International Nuclear Information System (INIS)

    Lee, Kwang-Il; Hwang, SungJae; Yoon, DongHwa

    2016-01-01

    Dual Modular Redundancy (DMR) is mainly used to implement these safety control systems. DMR is conveyed when components of a system are duplicated, providing another component in case one should fault or fail. This feature has a high availability and large fault tolerant. It provides zero downtime that is required for nuclear power plants. So nuclear power plant has been commercialized by multiple redundant systems. The following paper, we propose a Virtual Modular Redundancy (VMR) rather than physical triple of the Programmable Logic Controller (PLC) processor module to ensure the reliability of the nuclear power plant control system. VMR implementation minimizes design changes to continue to use the commercially available redundant system. Also, the purpose of the VMR is to improve the efficiency and reliability in many ways, such as fault tolerant and fail-safe and cost. VMR guarantees a wide range of reliable fault recovery, fault tolerance, etc. It is prevented before it causes great damages due to the continuous failure of the two modules. The reliable communication speed is slow and also it has a small bandwidth. It is a great loss in the safety control system. However, VMR aims to avoid nuclear power plants that were suspended due to fail-safe. It is not for the purpose of commonly used. Application of VMR is actually expected to require a lot of research and trial and error until they adapt to the nuclear regulatory and standards

  17. Virtual Modular Redundancy of Processor Module in the PLC

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Kwang-Il; Hwang, SungJae; Yoon, DongHwa [SOOSAN ENS Co., Seoul (Korea, Republic of)

    2016-10-15

    Dual Modular Redundancy (DMR) is mainly used to implement these safety control systems. DMR is conveyed when components of a system are duplicated, providing another component in case one should fault or fail. This feature has a high availability and large fault tolerant. It provides zero downtime that is required for nuclear power plants. So nuclear power plant has been commercialized by multiple redundant systems. The following paper, we propose a Virtual Modular Redundancy (VMR) rather than physical triple of the Programmable Logic Controller (PLC) processor module to ensure the reliability of the nuclear power plant control system. VMR implementation minimizes design changes to continue to use the commercially available redundant system. Also, the purpose of the VMR is to improve the efficiency and reliability in many ways, such as fault tolerant and fail-safe and cost. VMR guarantees a wide range of reliable fault recovery, fault tolerance, etc. It is prevented before it causes great damages due to the continuous failure of the two modules. The reliable communication speed is slow and also it has a small bandwidth. It is a great loss in the safety control system. However, VMR aims to avoid nuclear power plants that were suspended due to fail-safe. It is not for the purpose of commonly used. Application of VMR is actually expected to require a lot of research and trial and error until they adapt to the nuclear regulatory and standards.

  18. Connecting programmable logic controllers (PLC) to control and data acquisition a comparison of the JET and Wendelstein 7-X approach

    International Nuclear Information System (INIS)

    Hennig, Christine; Kneupner, Klaus; Kinna, David

    2012-01-01

    Highlights: ► We describe 2 ways connecting PLCs to fusion control and data acquisition software. ► At W7-X standardization of the PLC type eases the maintenance of the software. ► At JET PLCs are interfaced with a daemon that hides the PLC specific part. ► There is potential to unify the approaches towards a common fusion PLC interface. - Abstract: The use of programmable logic controllers (PLC) for automation of electromechanical processes is an industrial control system technology. It is more and more in use within the fusion community. Traditionally PLC based systems are operated and maintained using proprietary SCADA systems (supervisory control and data acquisition). They are hardly ever integrated with the fusion control and data acquisition systems. An overview of the state of the art in fusion is given in the article. At JET an inhouse “black box protocol” approach has been developed to communicate with any external system via a dedicated http based protocol. However, a PLC usually cannot be modified to implement this special protocol. Hence, a software layer has been developed that interfaces a PLC by implementing the PLC specific communication part on one side and the black box protocol part on the other side. The software is completely data driven i.e. editing the data structure changes the logic accordingly. It can be tested using the web capability of the black box protocol. Multiple PLC types from different vendors are supported, thus multiple protocols to interface the PLC are in use. Depending on the PLC type and available tools it can be necessary to program the PLC accordingly. Wendelstein 7-X uses another approach. For every single PLC a dedicated communication from and to CoDaC is implemented. This communication is projected (programmed) in the PLC and configurable (data driven) on the CoDaC side. The protocol is UDP based and observed via timeout mechanisms. The use of PLCs for Wendelstein 7-X is standardized. Therefore a single

  19. Connecting programmable logic controllers (PLC) to control and data acquisition a comparison of the JET and Wendelstein 7-X approach

    Energy Technology Data Exchange (ETDEWEB)

    Hennig, Christine, E-mail: Christine.Hennig@ipp.mpg.de [Max-Planck-Institut fuer Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald (Germany); Kneupner, Klaus; Kinna, David [JET-EFDA, Culham Science Centre, OX14 3DB Abingdon (United Kingdom)

    2012-12-15

    Highlights: Black-Right-Pointing-Pointer We describe 2 ways connecting PLCs to fusion control and data acquisition software. Black-Right-Pointing-Pointer At W7-X standardization of the PLC type eases the maintenance of the software. Black-Right-Pointing-Pointer At JET PLCs are interfaced with a daemon that hides the PLC specific part. Black-Right-Pointing-Pointer There is potential to unify the approaches towards a common fusion PLC interface. - Abstract: The use of programmable logic controllers (PLC) for automation of electromechanical processes is an industrial control system technology. It is more and more in use within the fusion community. Traditionally PLC based systems are operated and maintained using proprietary SCADA systems (supervisory control and data acquisition). They are hardly ever integrated with the fusion control and data acquisition systems. An overview of the state of the art in fusion is given in the article. At JET an inhouse 'black box protocol' approach has been developed to communicate with any external system via a dedicated http based protocol. However, a PLC usually cannot be modified to implement this special protocol. Hence, a software layer has been developed that interfaces a PLC by implementing the PLC specific communication part on one side and the black box protocol part on the other side. The software is completely data driven i.e. editing the data structure changes the logic accordingly. It can be tested using the web capability of the black box protocol. Multiple PLC types from different vendors are supported, thus multiple protocols to interface the PLC are in use. Depending on the PLC type and available tools it can be necessary to program the PLC accordingly. Wendelstein 7-X uses another approach. For every single PLC a dedicated communication from and to CoDaC is implemented. This communication is projected (programmed) in the PLC and configurable (data driven) on the CoDaC side. The protocol is UDP based and

  20. Paul E. Kahle and Federico Pérez Castro: The Origins of the Madrid School of Biblical Text Criticism

    Directory of Open Access Journals (Sweden)

    Fernández Tejero, Emilia

    2008-06-01

    Full Text Available We have frequently been asked about the origins of the Madrid School of Biblical Text Criticism. We have limited the content of this paper to Masoretic studies. Research into the files of the former Instituto Arias Montano of the CSIC disclosed a series of unedited letters between Professors Kahle and Pérez Castro; a paper by F. Pérez Castro and F. Cantera Burgos on “Prof. Paul E. Kahle y los estudios de crítica textual bíblica en España,” and a description by F. Pérez Castro of the first project to edit the Cairo Codex of the Prophets. Through these materials we can trace the main steps of the relationship between these two relevant scholars and the role that such a relationship played in the origin and late development of these studies in Madrid.

    A menudo se nos ha preguntado por los orígenes de la escuela de crítica textual bíblica de Madrid. Hemos limitado el contenido de este artículo a los estudios masoréticos. Investigando en los archivos del antiguo Instituto Arias Montano del CSIC hemos encontrado una colección de cartas inéditas entre los Profesores Kahle y Pérez Castro; un artículo escrito por F. Pérez Castro y F. Cantera Burgos titulado «Prof. Paul E. Kahle y los estudios de crítica textual bíblica en España», y la descripción hecha por Pérez Castro del primer proyecto para editar el Códice de Profetas de El Cairo. Gracias a estos testimonios hemos podido documentar las principales fases de la relación entre estos dos eminentes profesores y el papel que tal relación desempeñó en el origen y posterior desarrollo de estos estudios en Madrid.

  1. El léxico de parentesco quechua según Juan Pérez Bocanegra (Cuzco, siglo XVII

    Directory of Open Access Journals (Sweden)

    Raúl Bendezú-Araujo

    2015-01-01

    Full Text Available ResumenEn el marco de los estudios andinos coloniales, la figura de Juan Pérez Bocanegra, párroco de Andahuaylillas (Cuzco, goza de gran prestigio y su obra es frecuentemente citada como una fuente muy digna de crédito. El aporte más significativo de este clérigo a nuestro conocimiento del pasado andino lo constituye, muy probablemente, su detallada descripción del sistema de parentesco quechua. Ahora bien, sin intentar desmerecer el valor general de la obra de Pérez Bocanegra, la presente nota busca ofrecer una perspectiva lingüístico-filológica de los datos que esta presenta respectodel léxico de parentesco del quechua de inicios del siglo XVII. En ese sentido, intentaremos fundamentar la hipótesis de que, en relación con este aspecto particular, los datos de Pérez Bocanegra no son del todo fiables, pues obedecen a un proyecto evangelizador particular, que deja rastros en la selección y presentación de los lexemas que componen el campo léxico en cuestión.Palabras clave: filología andina, términos de parentesco, Juan Pérez Bocanegra, quechua colonial AbstractWithin the framework of colonial Andean studies, the image of Juan Perez Bocanegra, parish priest of Andahuaylillas (Cuzco, is highly regarded, and his work is often cited as a very reliable source. The most significant contribution of this cleric to our knowledge of the Andean past lies in its detailed description of the Quechua kinship system. However, without trying dismiss the overall value of the work of Pérez Bocanegra, this article seeks to provide a linguistic-philological perspective of the data he provides regarding the Quechua kinship lexicon from the early seventeenth century. In this respect, I will try to support the hypothesis that, on this particular aspect, this author’s data is not entirely reliable, for it obeys a particular evangelizer project that leaves traces in the selection and presentation of the lexemes that compose the lexical field in

  2. Evaluation of PLC Channel Capacity and ABER Performances for OFDM-Based Two-Hop Relaying Transmission

    OpenAIRE

    Ezzine, Sana; Abdelkefi, Fatma; Cances, Jean Pierre; Meghdadi, Vahid; Bouallégue, Ammar

    2017-01-01

    Powerline network is recognized as a favorable infrastructure for Smart Grid to transmit information in the network thanks to its broad coverage and low cost deployment. The existing works are trying to improve and adapt transmission techniques to reduce Powerline Communication (PLC) channel attenuation and exploit the limited bandwidth to support high data rate over long distances. Two-hop relaying BroadBand PLC (BB-PLC) system, in which Orthogonal Frequency Division Multiplexing (OFDM) is u...

  3. Ciudad, espacio y ceguera en ciudad Juárez México / City, Space, and Blindness Juárez, México

    Directory of Open Access Journals (Sweden)

    Maria Esther Vega-Ocampo

    2015-05-01

    Full Text Available Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:Cambria;} Resumen. La comunidad ciega en ciudad Juárez Mexico en frontera con Estados Unidos, mantiene en nuestros días una ausencia participativa en lo cotidiano, la estructura urbana de poca inclusión, los lleva crear alternativas para su movilidad. El objetivo  de este estudio es comprender y analizar cómo es la interacción social y espacial del ciego en una ciudad deshabilitada para su movilidad. Se utilizo un enfoque cualitativo que permitiese una observación cercana al grupo mediante entrevistas semi estructurada y observación participante, se escogió a un grupo de jóvenes ciegos que asisten a la Escuela para Ciegos Luis Braille. Se encontró que la ciudad  muestra un reflejo marginal que genera restricciones en su traslado, movilidad y aprendizaje espacial manteniendo una difícil autonomía.   Abstract: The community of visually impaired persons in Ciudad Juarez, Mexico, sitting astride the United States border, is practically absent from the city's day-to-day life. Providing negligible accommodations, Ciudad Juarez is not an inclusive environment and thus the visually impaired must auto-construct their own means of mobility to get out into the broader community they inhabit. The objective of this study is to analyze and understand the social and spacial interaction of the visually impaired in a northern Mexican border city entirely unequipped for them. The study focuses on a group of students at the Luis Braille School for the Blind in Ciudad Juarez, who were interviewed and observed during a prolonged period of time, and concludes that

  4. Synthesis of an A'B' Precursor to Angelmicin B: Product Diversification in the Suárez Lactol Fragmentation.

    Science.gov (United States)

    Li, Jialiang; Todaro, Louis; Mootoo, David R

    2011-11-01

    We describe a synthetic strategy for the angelimicin family of anthraquinoid natural products that involves converting a central highly oxygenated decalin intermediate to the AB and A'B' subunits. Herein, we report the synthesis of the bicyclic A'B' subunit that complements our earlier route to the tricyclic AB framework. The differentiating tact in the two syntheses focused on controlling the Suárez radical fragmentation of lactol precursors by modulating the substrate's structural rigidity. A more flexible lactol gave the tricyclic AB framework, whereas a more rigid substrate led to the bicyclic A'B' precursor, presumably through divergent pathways from the radical produced in the initial fragmentation step. These results establish a versatile advanced synthetic precursor for the angelimicins, and on a more general note, illustrate strategies for applying the Suárez fragmentation to diverse and complex molecular frameworks.

  5. Turismo industrial: oportunidades y retos dentro del sector de manu- factura en Ciudad Juárez

    Directory of Open Access Journals (Sweden)

    Francisco Arturo Bribiescas Silva

    2015-01-01

    Full Text Available Turismo Industrial, tema relevante dentro de la región fronteriza Ciudad Juá-rez-El Paso, donde la Industria de manufactura tiene gran dinamismo eco-nómico, y se visualizan expectativas y propuestas innovadoras a este sector. Este trabajo es una exploración de las oportunidades y retos de la industria manufacturera instalada en Ciudad Juárez para desarrollar actividades de turismo industrial en sus instalaciones. La información se obtuvo a través de entrevistas a profundidad con 15 gerentes de las empresas más importantes de esta región. Dentro de los resultados se puede observar que las actividades del turismo industrial son percibidas por los gerentes entrevistados como benéficas y consideradas como una actividad alterna a la manufactura.

  6. [Epidemiology of gunshot wounds at Ciudad Juárez, Chihuahua General Hospital].

    Science.gov (United States)

    Moye-Elizalde, G A; Ruiz-Martínez, F; Suarez-Santamaría, J J; Ruiz-Ramírez, M; Reyes-Gallardo, A; Díaz-Apodaca, B A

    2013-01-01

    Since 2007, Ciudad Juárez, Chihuahua has been considered as one of the most violent cities in the world. The General Hospital in this city is the main facility where patients with gunshot wounds are taken. The increased number of admissions of patients with these injuries to many hospitals in the country deserves special attention, as it has an impact on hospital resources and management protocols. To disseminate the epidemiology of fractures caused by gunshot wounds and the hospital care of these patients. A retrospective, observational cohort study was conducted of patients admitted to the Traumatology and Orthopedics Service, Cd. Juárez General Hospital, in Chihuahua, Mexico, from January 2008 to December 2010. All of them sustained fractures resulting from gunshot wounds. A total of 1281 patients with a diagnosis of gunshot wounds were admitted to the hospital; 402 of them were included in this study with 559 fractures; 329 were males and 73 females. Of the 559 fractures, 257 involved the upper limb, 294 the lower limb, and 8 the pelvis. Gunshot wounds-related fractures were classified according to the Gustilo classification. Seventy-nine patients had grade I fractures, 302 grade III, and 21 patients had both grades. Conservative treatment was used in 44.3% of fractures and osteosynthesis in 55%. One patient underwent amputation upon admission. The most widely used osteosynthesis methods were external fixator (37%), straight plates (21%) and intramedullary nail (17%). Five patients (1.3%) underwent amputation: two with femur fracture and 3 with humeral fracture. There were 27 deep infections (6%); one of them resulted in late amputation of the pelvic limb. The most common associated injuries included: chest injuries in 20 patients and abdominal injuries in 17. The range of hospital stay was 1-18 days, with a mean stay of 11 days. The overall mortality rate considering the total number of patients admitted (1,281) was 99 patients (7.72%). From 2006 to 2010 the

  7. Reflexions al voltant de la proposta lingüística de Josep Nebot i Pérez

    Directory of Open Access Journals (Sweden)

    Joan Rafael Ramos

    2015-10-01

    Full Text Available This article tries to outline the general background of grammatical studies in Catalan by the end of the 19th century and beginnings of the 20th century, while phocusing on the work of the Valencian grammarian Josep Nebot i Pérez, his linguistic ideology and his interesting proposal of producing two different set of grammars: a popular one, and another addressed to the more cultivated reader.

  8. The Design and Realization of Virtual Machine of Embedded Soft PLC Running System

    Directory of Open Access Journals (Sweden)

    Qingzhao Zeng

    2014-11-01

    Full Text Available Currently soft PLC has been the focus of study object for many countries. Soft PLC system consists of the developing system and running system. A Virtual Machine is an important part in running system even in the whole soft PLC system. It explains and performs intermediate code generated by the developing system and updates I/O status of PLC in order to complete its control function. This paper introduced the implementation scheme and execution process of the embedded soft PLC running system Virtual Machine, and mainly introduced its software implementation method, including the realization of the input sampling program, the realization of the instruction execution program and the realization of output refresh program. Besides, an operation code matching method was put forward in the instruction execution program design. Finally, the test takes PowerPC/P1010 (Freescale as the hardware platform and Vxworks as the operating system, the system test result shows that accuracy, the real-time performance and reliability of Virtual Machine.

  9. PLC and DTAM Software Programs for Pumping Instrumentation and Control Skid N

    International Nuclear Information System (INIS)

    KOCH, M.R.

    2000-01-01

    This document describe the software programs for the Programmable Logic Controller and the Datable Access Module for Pumping Instrumentation and Control skid ''N''. The Appendices contains copies of the printouts of these software programs. This document describes the software programs for the Allen-Bradley SLC 500 programmable logic controller (PLC) and the Allen-Bradley DTAM PLUS operator interface module used on Pumping Instrumentation and Control (PIC) skid ''N''. The software programs for the SLC 500 and DTAM Plus are based on the core programs provided by Allen-Bradley. The PLC and DTAM software programs on skid ''D'' for SX-104 are the baseline programs. These baselines have been tailored for U-farm skids. The skid ''N'' program for U-109 is similar to the skid ''M'' program for U-102. An Acceptance Test Procedure (ATP) and an Operational Test Procedure (OTP) verify that the software programs meet the specific requirements for U-109 pumping. This document represents the final PLC and DTAM programs for PIC skid ''N'' at U-109. These programs were printed out after the performance of the OTP. The OTP acts as the final qualification test for the software programs. Functional requirements and details of the PLC ladder logic are described in this document. The final programs entered into the PLC and DTAM Plus are included as Appendices to this document

  10. Realizace úzkopásmových PLC modemů

    OpenAIRE

    Kubíček, Lukáš

    2012-01-01

    Diplomová práce se věnuje úzkopásmové technologii přenosu dat el. sítí NN (PLC) a~možnostem jejího využití v senzorových sítích. Zabývá se jak strukturou a základními vlastnostmi PLC standardu, tak možnostmi jeho uplatnění v praxi. Hlavní částí této práce je realizace PLC sítě pomocí IO ST7570 firmy STMicroelectronics. Jako příklad praktického využití PLC technologie je tato síť připojena k počítači, ve kterém jsou data ze senzoru (wattmetru) připojenému k PLC modemu ukládána pomocí aplikace ...

  11. PLC-based mode multi/demultiplexers for mode division multiplexing

    Science.gov (United States)

    Saitoh, Kunimasa; Hanzawa, Nobutomo; Sakamoto, Taiji; Fujisawa, Takeshi; Yamashita, Yoko; Matsui, Takashi; Tsujikawa, Kyozo; Nakajima, Kazuhide

    2017-02-01

    Recently developed PLC-based mode multi/demultiplexers (MUX/DEMUXs) for mode division multiplexing (MDM) transmission are reviewed. We firstly show the operation principle and basic characteristics of PLC-based MUX/DEMUXs with an asymmetric directional coupler (ADC). We then demonstrate the 3-mode (2LP-mode) multiplexing of the LP01, LP11a, and LP11b modes by using fabricated PLC-based mode MUX/DEMUX on one chip. In order to excite LP11b mode in the same plane, a PLC-based LP11 mode rotator is introduced. Finally, we show the PLC-based 6-mode (4LP-mode) MUX/DEMUX with a uniform height by using ADCs, LP11 mode rotators, and tapered waveguides. It is shown that the LP21a mode can be excited from the LP11b mode by using ADC, and the two nearly degenerated LP21b and LP02 modes can be (de)multiplexed separately by using tapered mode converter from E13 (E31) mode to LP21b (LP02) mode.

  12. Separation of integrin-dependent adhesion from morphological changes based on differential PLC specificities.

    Science.gov (United States)

    Wooten, D K; Teague, T K; McIntyre, B W

    1999-01-01

    In normal lymphocytes an inside-out signal up-regulating integrin adhesion is followed by a ligand-mediated outside-in cell spreading signal. Protein kinase C (PKC) inhibition blocks lymphocyte adherence to and spreading on fibronectin. In contrast, putative PLC inhibitors yield distinct differences with respect to adhesion and morphology. The phosphatidylinositol-specific phospholipase C (PLC) inhibitor neomycin blocked spreading of CD3/CD28-activated T cells on fibronectin by disrupting adhesion. Furthermore, when an additional inside-out signal for fibronectin adhesion is unnecessary such as with HPB-ALL T leukemic or phorbol-myristate-acetate-treated normal T cells, neomycin treatment does not alter adhesion or morphology. However, the phosphatidylcholine-specific PLC inhibitor D609 abrogates cell spreading without affecting adhesion to fibronectin in these cells as well as the CD3/CD28-activated T cells. These results strongly suggest that inside-out signaling for the integrin alpha4beta1 in lymphocytes proceeds through phosphatidylinositol-specific PLC and PKC, whereas the outside-in signal utilizes phosphatidylcholine-specific PLC and PKC.

  13. An Architecture Of Plc Ls Xbc-Dr30e Based Clean Water Controlling System

    Directory of Open Access Journals (Sweden)

    M.Jusuf Jamanawar Purba

    2017-12-01

    Full Text Available In the industrial field the good controlling system is definitely required to improve the working efficiency of a system. The type of controller PLC Programmable Logic Controller used in Clean Water Controlling System in Electrical Workshop with PLC LS XBC-DR30E. Furthermore such system consistently uses two types of component they are Relay and Timer. The clean water pump control aims to pump the water in well A to storage tank B. The pump will work when water-contained well A is marked by sensor level well A on and the water inside storage tank B is under level 3. When the water inside storage tank B is under level 2 both pumps M1 and M2 will work to fill storage tank B. on the contrary when storage tank B is above level 2 only one pump M1 works until the tank reach level 3. In addition when storage tank B is above level 3 both pumps will stop working. However along with the advancement of recent technology the above system can be controlled by using PLC Programmable Logic Controller. Therefore it is possible to apply the controlling method of PLC as the semester Vs practical module. Based on the trial performed the PLC-based clean water system is well-functioned as the working description compiled before the operation of the tool.

  14. PLC/DTAM Software Programs for Pumping Instrumentation and Control Skid X

    International Nuclear Information System (INIS)

    HORNER, T.M.

    2001-01-01

    This document describes the software programs for the Allen-Bradley SLC 500 programmable logic controller (PLC) and the Allen-Bradley DTAM PLUS operator interface module used on Pumping Instrumentation and Control (PIC) skid ''X''. The software programs for the SLC 500 and DTAM Plus are based on the core programs provided by Allen-Bradley. The PLC and DTAM software programs on skid ''D'' for SX-104 are the baseline programs. These baselines will be tailored for each individual BY-farm skid. An Acceptance Test Procedure (ATP) and an Operational Test Procedure (OTP) verify that the software programs meet the specific requirements for BY-105 pumping. This document represents the final PLC and DTAM programs for PIC skid ''X'' at BY-105. These programs were printed out after the performance of the OTP. The OTP acts as the final qualification test for the software programs. Functional requirements and details of the PLC ladder logic are described in this document. The final programs entered into the PLC and DTAM Plus are included as Appendices to this document

  15. El impuesto predial en Ciudad Juárez desde una perspectiva de equidad

    Directory of Open Access Journals (Sweden)

    Sergio Peña-Medina

    2016-01-01

    Full Text Available El aspecto de equidad en el impuesto predial es un tema relevante que se aborda en este artículo. Ésta se diferencia entre vertical y horizontal; la primera se refiere a un enfoque progresivo en donde aquellas propiedades que valen más pagan una tasa superior a las de menor valor; la equidad horizontal apunta a un tema de valuación y, en ella, las propiedades comparables pagan la misma tasa. El artículo tiene como objetivo poner a prueba la hipótesis de regresividad del impuesto predial; se argumenta que ésta es inequitativa dado que en términos proporcionales las propiedades de menor valor pagan una tasa superior a las de mayor valor. Los resultados en esta investigación soportan la hipótesis de que existe un efecto de regresividad en el impuesto predial en Ciudad Juárez; consecuentemente es importante reflexionar sobre la estructura actual del sistema catastral.

  16. Historias de dictadura. Primeros cuentos de Sergio Ramírez

    Directory of Open Access Journals (Sweden)

    María del Pilar Ríos

    2017-07-01

    Full Text Available Los primeros textos del escritor nicaragüense Sergio Ramírez presentan algunos elementos que conforman, a manera de mosaico, los principales rasgos de la vida individual y social durante la larga dictadura somocista (1936 – 1979. Poder, violencia, dependencia política, social y económica son algunas de las problemáticas que asoman y su tratamiento se acentúa o modifica entre una publicación y otra más allá del orden de aparición. Asimismo, en el marco de las luchas por la liberación encabezadas por el Frente Sandinista de Liberación Nacional (FSLN, se cuestiona la función del arte y del intelectual. Propongo una serie de cuentos incluidos en Cuentos (1963, Nuevos Cuentos (1969 y Charles Atlas también muere (1976 en la que reviso, en primera instancia, la postura en torno al arte y al intelectual que exponen mediante la autofiguración del autor. Luego, exploro algunos elementos que conforman esos mundos narrativos y que funcionan como denuncia político-social al mismo tiempo que imaginan y reivindican una nueva nación en sintonía con los postulados presentes en las luchas revolucionarias.

  17. Nuevas otras de Jenaro Pérez Villaamil y Carlos de Haes

    Directory of Open Access Journals (Sweden)

    Arias Anglés, Enrique

    2004-06-01

    Full Text Available La intención del presente trabajo es dar a conocer y catalogar algunas obras, aparecidas últimamente, de estos dos grandes maestros del paisajismo español del siglo XIX. Unas tienen el interés de aportamos, o ampliamos, la visión de una etapa determinada del artista de la que tenemos escaso conocimiento; otras meramente contribuyen a aumentar el catálogo conocido de las obras de estos pintores y, aunque nada nuevo aporten al juicio que de su pintura poseemos en general, ya eso mismo siempre resulta de por sí un valor añadido a su producción, y más si se trata de algún buen cuadro; y, por último, también tenemos el caso de la obra que ha podido ser identificada gracias a sernos conocido previamente su dibujo preparatorio. Comenzaremos por las que nos amplían la visión de una etapa pictórica poco conocida del paisajista romántico español Jenaro Pérez Villaamil…

  18. La cultura del feminicidio en Ciudad Juárez, 1993-1999

    Directory of Open Access Journals (Sweden)

    Julia Estela Fragoso Monárrez

    2000-01-01

    Full Text Available El proposito de esta investigación es analizar los asesinatos cometidos contra niñas y mujeres de Ciudad Juárez en los años de 1993 a 1999, a través de la categoría analítica del feminicidio. Diferenciar las distintas clases de feminicidios y delinear los perfiles sociodemográficos de vulnerabilidad de las niñas y las mujeres asesinadas. Finalmente clasificar la relación de parentesco entre la víctima y el victimario. Los datos se recolectaron de fuentes secundarias y oficiales para 162 víctimas. Los resultados arrojan un perfil preliminar sociodemográfico de las víctimas y confirman la existencia de varios tipos de feminicidios en algunos casos en relación a la ocupación de las víctimas. En cuanto a la noción de un asesino serial o una epidemia de machismo que repite patrones de exterminio, ambas categorías se encuentran presentes. Los resultados también confirman una relación de parentesco o desconocimiento entre las víctimas y el victimario

  19. La transformación transatlántica de la Monja Alférez .

    Directory of Open Access Journals (Sweden)

    Chloe Rutter- Jensen

    2007-12-01

    Full Text Available Catalina de Erauso's story, La historia de la monja alférez escrita por ella misma / Catalina de Erauso recounts her adventures as a man, her later confession of being a woman and virgin, her pension from the king, and even the Pope's legitimization of her dressing as a man. The author examines this text in terms of its contribution and resistance to the construction of gender in Spain and the Spanish American colonies in the early 17th century. The transatlantic voyages open a space in which the figure of Catalina de Erauso transits from one gender category to another. With an emphasis on the prefix 'trans', reading the text through the lens of the 'transsexual' narrative creates new borders and limits, and accentuates the text as a site of struggle over gender identity. The 'transsexual' narrative can help us see the text not only as a site of transition and combination of social categories, but also for interrupting the binary structure of sex and gender that appears so natural today.

  20. Carbon monoxide exposure in households in Ciudad Juárez, México.

    Science.gov (United States)

    Montoya, Teresa; Gurian, Patrick L; Velázquez-Angulo, Gilberto; Corella-Barud, Verónica; Rojo, Analila; Graham, Jay P

    2008-03-01

    This study assessed exposure to carbon monoxide from gas and wood heater emissions in a sample of 64 households in peri-urban residential areas in Ciudad Juárez, Chihuahua, México. Indoor and outdoor carbon monoxide concentrations and temperatures were monitored for a continuous period of 1 week at 1 and 6-min intervals, respectively. The moving average carbon monoxide concentrations were compared to the World Health Organization (WHO) standards for carbon monoxide. Sixty-seven percent of households with gas heaters and 60% of households with wood heaters exceeded a health-based standard at some point during the monitoring. The difference between indoor and outdoor temperatures was modestly correlated with average carbon monoxide exposure (r=0.35, p-value h standard of 9ppm (odds ratio=5.1, p-value=0.031). These results highlight the need for further efforts to identify and mitigate potentially hazardous carbon monoxide exposures, particularly in moderate-income countries with cooler climates.

  1. Development of Safety Grade PLC (POSAFE-Q) and Performance Test Results

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Chang Hwoi; Park, Won Man; Choi, Jong Gyun; Lee, Dong Young [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of); No, Young Hun; Song, Seung Hwan [POSCON, Seoul (Korea, Republic of)

    2006-07-01

    The safety grade PLC (POSAFE-Q) is being developed in the Korea Nuclear Instrumentation and Control System (KNICS) R and D project. The PLC satisfies Safety Class 1E, Quality Class 1, and Seismic Category I. The software such as the RTOS and firmware are being developed according to the safety critical software life cycle. Especially, the formal method is applied to design the SRS (Software Requirement Spec.) and the SDS (Software Design Specification.) to be error-free. The POSAFE-Q has several modules such as processor module, input and output modules, communication modules, redundant processor module, redundant power modules, etc,. To verify the function and performance, several tests such as CT, IT and ST were performed. And also, the equipment qualification test for environment, EMI and EMC, and seismic ware performed. All tests are satisfied with the requirements and specification for safety grade PLC, and the criteria for safety system in nuclear power plants.

  2. MultiController: the PLC-SCADA object for advanced regulation

    CERN Document Server

    Ortola, J

    2007-01-01

    Nowadays, industrial solutions with PLCs (Programmable Logic Controllers) have basic control loop features. The SCADA (Supervisory Control And Data Acquisition) system is a key point of the process control system due to an efficient HMI (Human Machine Interfaces) that provides an open method of tuning and leading possibilities. As a consequence, advanced control algorithms have to be developed and implemented for those PLC-SCADA solutions in order to provide perspectives in solving complex and critical regulation problems. The MultiController is an object integrated for a large scale project at CERN (the European Organization for Nuclear Research) named LHC-GCS (Large Hadron Collider - Gas Control System). It is developed for a Framework called CERN-UNICOS based on PLC-SCADA facilities. The MultiController object offers various advanced control loop strategies. It gives to the user advanced control algorithms like PID, Smith Predictor, PFC, GPC and RST. It is implemented as a monolithic entity (in PLC and SCA...

  3. Design and implementation of tutorials for PLC B&R Automation

    OpenAIRE

    Sýkora, Daniel

    2014-01-01

    Tato bakalářská práce se zabývá návrhem a realizací úloh pro PLC B&R a podrobným návodem práce v Automation Studio. Obsahuje také informace o firmě B&R Automation Ges. m. b. H. a jejích produktech. Návrh úloh probíhal ve vývojovém prostředí B&R Automation Studio. Praktická úloha na regulaci teploty byla řešena a odzkoušena na B&R PLC X20. This bachelor’s thesis deals with the design and the implementation tutorials for PLC B&R as well as the detailed instructions of work in the Automation ...

  4. Reliability Analysis of Safety Grade PLC(POSAFE-Q) for Nuclear Power Plants

    International Nuclear Information System (INIS)

    Kim, J. Y.; Lyou, J.; Lee, D. Y.; Choi, J. G.; Park, W. M.

    2006-01-01

    The Part Count Method of the military standard MILHDK- 217F has been used for the reliability prediction of the nuclear field. This handbook determines the Programmable Logic Controller (PLC) failure rate by summing the failure rates of the individual component included in the PLC. Normally it is easily predictable that the components added for the fault detection improve the reliability of the PLC. But the application of this handbook is estimated with poor reliability because of the increased component number for the fault detection. To compensate this discrepancy, the quantitative reliability analysis method is suggested using the functional separation model in this paper. And it is applied to the Reactor Protection System (RPS) being developed in Korea to identify any design weak points from a safety point of view

  5. Bringing Automated Model Checking to PLC Program Development - A CERN Case Study

    CERN Document Server

    Fernandez Adiego, B; Tournier, J-C; Blanco Vinuela, E; Gonzalez Suarez, V M

    2014-01-01

    Verification of critical software is a high priority but a challenging task for industrial control systems. Model checking appears to be an appropriate approach for this purpose. However, this technique is not widely used in industry yet, due to some obstacles. The main obstacles encountered when trying to apply formal verification techniques at industrial installations are the difficulty of creating models out of PLC programs and defining formally the specification requirements. In addition, models produced out of real-life programs have a huge state space, thus preventing the verification due to performance issues. Our work at CERN (European Organization for Nuclear Research) focuses on developing efficient automatic verification methods for industrial critical installations based on PLC (Programmable Logic Controller) control systems. In this paper, we present a tool generating automatically formal models out of PLC code. The tool implements a general methodology which can support several input languages, ...

  6. Technical considerations for the development of an engineering safety features control system with PLC

    International Nuclear Information System (INIS)

    Lee, C. K.; Kim, C. H.; Han, J. B.; Kim, H.; Lee, S. S.

    2002-01-01

    Technical considerations are summarized for the development of an ESFCS(Engineered Safety Features Control System) with PLC (Programmable Logic Controller). The ESFCS is required for the mitigation of plant accident conditions and therefore developed in conformance with the design requirements applied to the safety critical system. The design of ESFCS primarily considered its safety, and the system has an architecture that will be able to minimize spurious actuation. The PLC based functional distribution and redundant design features are adopted, and the fieldbus is applied in the communication of information and control signals between PLC processors. It is expected that the ESFCS will have several advanced design features compared with the conventional systems supplied by foreign vendors

  7. Development of Safety Grade PLC (POSAFE-Q) and Performance Test Results

    International Nuclear Information System (INIS)

    Kim, Chang Hwoi; Park, Won Man; Choi, Jong Gyun; Lee, Dong Young; No, Young Hun; Song, Seung Hwan

    2006-01-01

    The safety grade PLC (POSAFE-Q) is being developed in the Korea Nuclear Instrumentation and Control System (KNICS) R and D project. The PLC satisfies Safety Class 1E, Quality Class 1, and Seismic Category I. The software such as the RTOS and firmware are being developed according to the safety critical software life cycle. Especially, the formal method is applied to design the SRS (Software Requirement Spec.) and the SDS (Software Design Specification.) to be error-free. The POSAFE-Q has several modules such as processor module, input and output modules, communication modules, redundant processor module, redundant power modules, etc,. To verify the function and performance, several tests such as CT, IT and ST were performed. And also, the equipment qualification test for environment, EMI and EMC, and seismic ware performed. All tests are satisfied with the requirements and specification for safety grade PLC, and the criteria for safety system in nuclear power plants

  8. NB-PLC channel modelling with cyclostationary noise addition & OFDM implementation for smart grid

    Science.gov (United States)

    Thomas, Togis; Gupta, K. K.

    2016-03-01

    Power line communication (PLC) technology can be a viable solution for the future ubiquitous networks because it provides a cheaper alternative to other wired technology currently being used for communication. In smart grid Power Line Communication (PLC) is used to support communication with low rate on low voltage (LV) distribution network. In this paper, we propose the channel modelling of narrowband (NB) PLC in the frequency range 5 KHz to 500 KHz by using ABCD parameter with cyclostationary noise addition. Behaviour of the channel was studied by the addition of 11KV/230V transformer, by varying load location and load. Bit error rate (BER) Vs signal to noise ratio SNR) was plotted for the proposed model by employing OFDM. Our simulation results based on the proposed channel model show an acceptable performance in terms of bit error rate versus signal to noise ratio, which enables communication required for smart grid applications.

  9. An advanced lab frame PC-PLC regime for a power supply control

    International Nuclear Information System (INIS)

    Abdel-Bary, M

    2010-01-01

    A lab frame automatic control system (LFACS) based on a programmable logic controller (PLC) is designed, developed and tested in the laboratory. The LFACS is designed to control and monitor one DC power supply with output current accuracy 0.001 amps, one automatic valve. Also the LFACS will monitor one full range vacuum measurement and one water leak detector. The control system is built based on the internationally standard programmable logic controller (PLC) from Siemens. Two software's have been used; firstly SIMATIC S 7 lite has been used to build the control program and safety interlocks, secondly winCC flexible (runs in a PC computer and communicates with the PLC by multi point interface PC adapter (MPI) has been used to build the user-machine interface . This lab frame control system will be generalized to a global control system to control the MGC-20 cyclotron. The lab tests showed a reliable and flexible control system.

  10. Design and Implementation of PLC-Based Automatic Sun tracking System for Parabolic Trough Solar Concentrator

    Directory of Open Access Journals (Sweden)

    Wang Jinping

    2016-01-01

    Full Text Available A sun-tracking system for parabolic trough solar concentrators (PTCs is a control system used to orient the concentrator toward the sun always, so that the maximum energy can be collected. The work presented here is a design and development of PLC based sun tracking control system for PTC. Sun tracking control system consists of a Programmable Logic Controller (PLC and a single axis hydraulic drives tracking control system. Hydraulic drives and the necessary tracking angle algorithm have been designed and developed to perform the technical tasks. A PLC unit was employed to control and monitor the mechanical movement of the PTC and to collect and store data related to the tracking angle of PTC. It is found that the tracking error of the system is less than 0.6°. Field experience shows that tracking algorithm act stable and reliable and suit for PTCs.

  11. Marine biodiversity at the end of the world: Cape Horn and Diego Ramírez islands

    Science.gov (United States)

    Ballesteros, Enric; Bell, Tom W.; Giddens, Jonatha; Henning, Brad; Hüne, Mathias; Muñoz, Alex; Salinas-de-León, Pelayo; Sala, Enric

    2018-01-01

    The vast and complex coast of the Magellan Region of extreme southern Chile possesses a diversity of habitats including fjords, deep channels, and extensive kelp forests, with a unique mix of temperate and sub-Antarctic species. The Cape Horn and Diego Ramírez archipelagos are the most southerly locations in the Americas, with the southernmost kelp forests, and some of the least explored places on earth. The giant kelp Macrocystis pyrifera plays a key role in structuring the ecological communities of the entire region, with the large brown seaweed Lessonia spp. forming dense understories. Kelp densities were highest around Cape Horn, followed by Diego Ramírez, and lowest within the fjord region of Francisco Coloane Marine Park (mean canopy densities of 2.51 kg m-2, 2.29 kg m-2, and 2.14 kg m-2, respectively). There were clear differences in marine communities among these sub-regions, with the lowest diversity in the fjords. We observed 18 species of nearshore fishes, with average species richness nearly 50% higher at Diego Ramírez compared with Cape Horn and Francisco Coloane. The number of individual fishes was nearly 10 times higher at Diego Ramírez and 4 times higher at Cape Horn compared with the fjords. Dropcam surveys of mesophotic depths (53–105 m) identified 30 taxa from 25 families, 15 classes, and 7 phyla. While much of these deeper habitats consisted of soft sediment and cobble, in rocky habitats, echinoderms, mollusks, bryozoans, and sponges were common. The southern hagfish (Myxine australis) was the most frequently encountered of the deep-sea fishes (50% of deployments), and while the Fueguian sprat (Sprattus fuegensis) was the most abundant fish species, its distribution was patchy. The Cape Horn and Diego Ramírez archipelagos represent some of the last intact sub-Antarctic ecosystems remaining and a recently declared large protected area will help ensure the health of this unique region. PMID:29364902

  12. Construction and Verification of PLC LD-programs by LTL-specification

    Directory of Open Access Journals (Sweden)

    E. V. Kuzmin

    2013-01-01

    Full Text Available An approach to construction and verification of PLC LD-programs for discrete problems is proposed. For the specification of the program behavior, we use the linear-time temporal logic LTL. Programming is carried out in the LD-language (Ladder Diagram according to an LTL-specification. The correctness analysis of an LTL-specification is carried out by the symbolic model checking tool Cadence SMV. A new approach to programming and verification of PLC LD-programs is shown by an example. For a discrete problem, we give a LD-program, its LTL-specification and an SMV-model. The purpose of the article is to describe an approach to programming PLC, which would provide a possibility of LD-program correctness analysis by the model checking method. Under the proposed approach, the change of the value of each program variable is described by a pair of LTL-formulas. The first LTL-formula describes situations which increase the value of the corresponding variable, the second LTL-formula specifies conditions leading to a decrease of the variable value. The LTL-formulas (used for speci- fication of the corresponding variable behavior are constructive in the sense that they construct the PLC-program (LD-program, which satisfies temporal properties expressed by these formulas. Thus, the programming of PLC is reduced to the construction of LTLspecification of the behavior of each program variable. In addition, an SMV-model of a PLC LD-program is constructed according to LTL-specification. Then, the SMV-model is analysed by the symbolic model checking tool Cadence SMV.

  13. The Research about Embedded Soft PLC Running System Based on ARM

    Directory of Open Access Journals (Sweden)

    Fang Ding

    2014-09-01

    Full Text Available The paper discusses the overall construction and operational principle of soft PLC. Considering the real time request of the system, we use Linux+RTAI dual core system as software platform. In this platform, the implementation method of soft PLC operational system is introduced. Especially, the design of instruction analysis module is emphasized. On the basis of energy flow concept, the logic algorithm is established, aligning to the left bus. Finally, the system is tested to evaluate the desired control behavior.

  14. A fast PID controller Design for Modern PLC for Process Control Application

    International Nuclear Information System (INIS)

    Mirza, A.; Nafis, A.; Anees, R.M.; Idris, S.

    2004-01-01

    PID is the most widely used control scheme in the process industry. Pill controllers are utilized for the control of such varied parameters as pressure, flow, temperature, etc. One characteristic of these parameters is that they posses slow dynamics. Most of the available digital controllers can manipulate only a single parameter- multiple controllers are required for control of more than one parameter. The Fast PID Controller for Modem PLC (Programmable Logic Controller) developed by the authors, provides control of several parameters at a time (through a single Pill control element), enhanced programmability including variable sampling period, parameter monitoring and data storage, which may be easily implemented in a PLC. (author)

  15. An Integrated Software Development Framework for PLC and FPGA based Digital I and Cs

    International Nuclear Information System (INIS)

    Yoo, Jun Beom; Kim, Eui Sub; Lee, Dong Ah; Choi, Jong Gyun

    2014-01-01

    NuDE 2.0 (Nuclear Development Environment) is a model-based software development environment for safety- critical digital systems in nuclear power plants. It makes possible to develop PLC-based systems as well as FPGA-based systems simultaneously from the same requirement or design specifications. The case study showed that the NuDE 2.0 can be adopted as an effective method of bridging the gap between the existing PLC and upcoming FPGA-based developments as well as a means of gaining diversity

  16. PLC-based LP₁₁ mode rotator for mode-division multiplexing transmission.

    Science.gov (United States)

    Saitoh, Kunimasa; Uematsu, Takui; Hanzawa, Nobutomo; Ishizaka, Yuhei; Masumoto, Kohei; Sakamoto, Taiji; Matsui, Takashi; Tsujikawa, Kyozo; Yamamoto, Fumihiko

    2014-08-11

    A PLC-based LP11 mode rotator is proposed. The proposed mode rotator is composed of a waveguide with a trench that provides asymmetry of the waveguide. Numerical simulations show that converting LP11a (LP11b) mode to LP11b (LP11a) mode can be achieved with high conversion efficiency (more than 90%) and little polarization dependence over a wide wavelength range from 1450 nm to 1650 nm. In addition, we fabricate the proposed LP11 mode rotator using silica-based PLC. It is confirmed that the fabricated mode rotator can convert LP11a mode to LP11b mode over a wide wavelength range.

  17. An Integrated Software Development Framework for PLC and FPGA based Digital I and Cs

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Jun Beom; Kim, Eui Sub; Lee, Dong Ah [Konkuk University, Seoul (Korea, Republic of); Choi, Jong Gyun [KAERI, Daejeon (Korea, Republic of)

    2014-08-15

    NuDE 2.0 (Nuclear Development Environment) is a model-based software development environment for safety- critical digital systems in nuclear power plants. It makes possible to develop PLC-based systems as well as FPGA-based systems simultaneously from the same requirement or design specifications. The case study showed that the NuDE 2.0 can be adopted as an effective method of bridging the gap between the existing PLC and upcoming FPGA-based developments as well as a means of gaining diversity.

  18. One-way data transfer for PLC to VME status reporting at the Advanced Photon Source

    International Nuclear Information System (INIS)

    Stein, S.J.

    1993-01-01

    The Personnel Safety System for the experimental beamlines at the Advanced Photon Source will use a large number of Allen Bradley Programmable Logic Controllers (PLC) to replace conventional relay logic. PLCs allow for the design of a very advanced safety system that can handle a large number of I/O points. Certain situations Require monitoring of the safety system from various locations around the storage ring via EPICS OPI (operator interface)consoles. This presentation covers the method of choice for transferring data from the Personnel Safety System into an EPICS database. Specifics on PLC ladder design, EPICS database design, and hardware selection are also discussed

  19. Enterprise network with software Asterisk PBX based on the PLC technology

    Directory of Open Access Journals (Sweden)

    Michal Maar

    2017-01-01

    Full Text Available This article presents the software Asterisk PBX solution design in enterprise PLC network (Power Line Communication. The description of the installation and configuration of software Asterisk PBX is involved in the design. The secure interconnection of two enterprise PLC network is implemented via the telecommunication tunnel with security grant using the Cisco routers. The connection between two Asterisk PBXs is designed in context of the establishment of the tunnel. The subject of the article is also cross/connection of exchanges Asterisk PBX and hardware PBX - IP Panasonic PBX K-NS500.

  20. 75 FR 61361 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-535 Series Turbofan Engines

    Science.gov (United States)

    2010-10-05

    ...-0994; Directorate Identifier 2009-NE-39-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR...-Royce plc., P.O. Box 31, Derby, DE24 8BJ, United Kingdom; Telephone: 011 44 1332 242424, Fax: 011 44... based on those comments. We will post all comments we receive, without change, to http://www.regulations...

  1. 76 FR 78805 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2011-12-20

    ... Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines AGENCY: Federal Aviation... all Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines. This AD results from mandatory... inspection of the FOHE mounts. We did not change the AD based on this comment. Request To Add Requirement To...

  2. 76 FR 65997 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-535 Series Turbofan Engines

    Science.gov (United States)

    2011-10-25

    ...-0994; Directorate Identifier 2009-NE-39-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR... Friday, except Federal holidays. For service information identified in this AD, contact Rolls-Royce plc.... Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be $1,499,400. FAA...

  3. 75 FR 45560 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2010-08-03

    ...-0755; Directorate Identifier 2010-NE-12-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR... based on engine thrust rating but now based on operating shaft speeds) introduced by Rolls- Royce. The...-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom: Telephone 44 (0) 1332 242424; fax 44 (0) 1332...

  4. 77 FR 10355 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2012-02-22

    ... Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines AGENCY: Federal Aviation... service of certain critical engine parts based on reduced life limits. This new AD reduces the life limits... effective March 28, 2012. ADDRESSES: For service information identified in this AD, contact Rolls-Royce plc...

  5. 77 FR 4648 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-535 Series Turbofan Engine

    Science.gov (United States)

    2012-01-31

    ... Airworthiness Directives; Rolls-Royce plc (RR) RB211-535 Series Turbofan Engine AGENCY: Federal Aviation... identified in this AD, contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone: 011 44... parts are required. Based on these figures, we estimate the cost of this AD on U.S. operators to be $1...

  6. 75 FR 63727 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-524 Series Turbofan Engines

    Science.gov (United States)

    2010-10-18

    ...-0162; Directorate Identifier 2004-NE-19-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR...-2251. Contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; telephone: 011-44-1332... would cost $0. Based on these figures, we estimate the total cost of the AD to U.S. operators would be...

  7. 76 FR 68663 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2011-11-07

    ...-0755; Directorate Identifier 2010-NE-12-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR... Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, England, DE248BJ; phone: 011-44-1332... date and may amend this proposed AD based on those comments. We will post all comments we receive...

  8. 77 FR 1009 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-524 Series Turbofan Engines

    Science.gov (United States)

    2012-01-09

    ... Airworthiness Directives; Rolls-Royce plc (RR) RB211-524 Series Turbofan Engines AGENCY: Federal Aviation... 5, 2005). ADDRESSES: For service information identified in this AD, contact Rolls-Royce plc, P.O...,000. Based on these figures, we estimate the total cost of the AD to U.S. operators to be $4,206,960...

  9. 75 FR 17630 - Airworthiness Directives; Rolls-Royce plc RB211 Trent 700 and Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2010-04-07

    ...-0364; Directorate Identifier 2009-NE-27-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc... based on those comments. We will post all comments we receive, without change, to http://www.regulations... Service Information Rolls-Royce plc has issued Alert Service Bulletin RB.211-72-AG086, dated December 4...

  10. 77 FR 21588 - Hart and Cooley, Inc., A Subsidiary of Tomkins, PLC Including On-Site Leased Workers from...

    Science.gov (United States)

    2012-04-10

    ... Subsidiary of Tomkins, PLC Including On- Site Leased Workers from Reliable, Masiello Employment Services..., applicable to workers of Hart and Cooley, Inc., a subsidiary of Tomkins, PLC, including on-site leased... workers. Based on these findings, the Department is amending this certification to include workers leased...

  11. 76 FR 72650 - Airworthiness Directives; Rolls-Royce plc (RR) RB211 Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2011-11-25

    ...-0959; Directorate Identifier 2011-NE-25-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR... holidays. Fax: (202) 493-2251. Contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone... AD. We will consider all comments received by the closing date and may amend this proposed AD based...

  12. The YvfTU Two-component System is involved in plcR expression in Bacillus cereus

    NARCIS (Netherlands)

    Brillard, Julien; Susanna, Kim; Michaud, Caroline; Dargaignaratz, Claire; Gohar, Michel; Nielsen-Leroux, Christina; Ramarao, Nalini; Kolsto, Anne-Brit; Nguyen-The, Christophe; Lereclus, Didier; Broussolle, Veronique

    2008-01-01

    Background: Most extracellular virulence factors produced by Bacillus cereus are regulated by the pleiotropic transcriptional activator PlcR. Among strains belonging to the B. cereus group, the plcR gene is always located in the vicinity of genes encoding the YvfTU two-component system. The putative

  13. 75 FR 34172 - Rexam Closure Systems, Inc., a Subsidiary of Rexam PLC, Including On-Site Leased Workers From...

    Science.gov (United States)

    2010-06-16

    ... Illinois Manufacturing, Hamlet, NC; Amended Certification Regarding Eligibility To Apply for Worker... PLC, Hamlet, North Carolina. The notice was published in the Federal Register on April 23, 2010 (75 FR... at the Hamlet, North Carolina location of Rexam Closure Systems, Inc., a subsidiary of Rexam PLC. The...

  14. Biochemical characterization of the tomato phosphatidylinositol-specific phospholipase C (PI-PLC) family and its role in plant immunity

    NARCIS (Netherlands)

    Abd-El-Haliem, Ahmed; Vossen, J.H.; Zeijl, van Arjan; Dezhsetan, Sara; Testerink, Christa; Seidl, M.F.; Beck, Martina; Strutt, James; Robatzek, Silke; Joosten, M.H.A.J.

    2016-01-01

    Plants possess effective mechanisms to quickly respond to biotic and abiotic stresses. The rapid activation of phosphatidylinositol-specific phospholipase C (PLC) enzymes occurs early after the stimulation of plant immune-receptors. Genomes of different plant species encode multiple PLC homologs

  15. The Application of PLC (Powerline Communications) in Brazil in the regulatory viewpoint; A aplicacao do PLC no Brasil do ponto de vista regulatorio

    Energy Technology Data Exchange (ETDEWEB)

    Vieira, Daniel; Silva Filho, Armando [Agencia Nacional de Energia Eletrica (ANEEL), Brasilia, DF (Brazil). Superintendencia de Regulacao dos Servicos de Distribuicao

    2010-07-01

    The Powerline Communications technology - PLC allows transmission of data, voice, image and access to high speed internet by the grid, so that a power plug can also be an access point to the network communication. Considering that the electric grid reaches the vast majority of households, there is great potential in using this technology as a tool to achieve the reality of digital inclusion in the country. However, its implementation must be accompanied by effective regulation, both through policies with respect to the conditions of use of radio frequencies, as in regulating the use of distribution networks of electricity as a means of transport for communication signal. In this context, the present article deals with the fundamental rules governing the application of PLC technology from the standpoint of the distributors and consumers of electricity, with attention to quality assurance of electrical energy and facility security.

  16. Violencias en el Norte de México: el caso de Ciudad Juárez

    Directory of Open Access Journals (Sweden)

    Alberto Aziz Nassif

    2014-06-01

    Full Text Available En este trabajo se hace un análisis de los diferentes tipos de violencia que se generan en la crisis de una ciudad que fue abatida por las bandas del narcotráfico en la frontera de México con Estados Unidos. Hay efecto combinado de guerra entre cárteles por el control de la plaza, que se mezcla con la mala estrategia de enfrentamiento y la penetración de los cuerpos policíacos, lo que da como resultado una amplia destrucción de personas, familias y espacios. Las violencias se construyen porque hay causas estructurales, como el modelo de ciudad, porque hay una deficiente presencia del Estado y por una estrategia de guerra entre cárteles. Todo esto produce la crisis de violencia que se vive en Ciudad Juárez.   Abstract   This paper provides an analysis of the different types of violence that are generated in the crisis of a city that was shot down by drug gangs in Mexico’s border with the United States. The combined effects of the war between cartels for control of the square, mixed with the bad strategy of confrontation and the penetration of the police forces give as a result extensive destruction of individuals, families and spaces. Violence is built because there are structural causes such as the city’s model, because there is a weak State presence and war strategy between cartels. All this results in the violence crisis that exists in Ciudad Juarez.

  17. EL USO DE LA RENDICIÓN DE CUENTAS PARA UN PERIODISMO DE CALIDAD. EL FEMINICIDIO EN JUÁREZ BAJO LA LUPA

    Directory of Open Access Journals (Sweden)

    Adina Barrera Hernández

    2015-06-01

    Full Text Available En México, el periodismo encargado de fuentes ofi ciales se ha caracterizado por reproducir el discurso hegemónico de las instituciones gubernamentales. La falta de una postura crítica ante dicha información, sumada a las lógicas mercantiles de las industrias de la comunicación, provoca que el derecho de las audiencias a la información se confi gure limitadamente. Investigar desde el marco de los derechos humanos y de género obliga al gremio a trabajar en favor de la ciudadanía y a ayudar a la libre crítica del ejercicio de poder y la evaluación del desempeño de las instituciones. Esta es una propuesta para el uso de la rendición de cuentas como herramienta en la investigación sobre el feminicidio en Ciudad Juárez, Chihuahua. AbstractThe journalism, which is in charge of offi cial sources in Mexico, is characterized because of the production of the hegemonic discourse of the governmental institutions. The lack of a critical point of view related to this information, together with commercial activities of the communications industry causes the individuals’ right to obtain information to be limited. Researching human and gender rights requires the guild to work in favor of the citizens and help to exercise the freedom to criticize those in power and to access the effectiveness of governmental institutions. This is a proposal for the use of accountability as a research tool on femicide in Juarez, Chihuahua.

  18. Applying Hamming Code to Memory System of Safety Grade PLC (POSAFE-Q) Processor Module

    International Nuclear Information System (INIS)

    Kim, Taehee; Hwang, Sungjae; Park, Gangmin

    2013-01-01

    If some errors such as inverted bits occur in the memory, instructions and data will be corrupted. As a result, the PLC may execute the wrong instructions or refer to the wrong data. Hamming Code can be considered as the solution for mitigating this mis operation. In this paper, we apply hamming Code, then, we inspect whether hamming code is suitable for to the memory system of the processor module. In this paper, we applied hamming code to existing safety grade PLC (POSAFE-Q). Inspection data are collected and they will be referred for improving the PLC in terms of the soundness. In our future work, we will try to improve time delay caused by hamming calculation. It will include CPLD optimization and memory architecture or parts alteration. In addition to these hamming code-based works, we will explore any methodologies such as mirroring for the soundness of safety grade PLC. Hamming code-based works can correct bit errors, but they have limitation in multi bits errors

  19. Trust and Collaboration in PLC Teams: Teacher Relationships, Principal Support, and Collaborative Benefits

    Science.gov (United States)

    Hallam, Pamela R.; Smith, Henry R.; Hite, Julie M.; Hite, Steven J.; Wilcox, Bradley R.

    2015-01-01

    Professional learning communities (PLCs) are being recognized as effective in improving teacher collaboration and student achievement. Trust is critical in effectively implementing the PLC model, and the school principal is best positioned to influence school trust levels. Using five facets of trust, this research sought to clarify the impact of…

  20. A RESEARCH ON SEAMLESS PLATFORM CHANGE OF REACTOR PROTECTION SYSTEM FROM PLC TO FPGA

    Directory of Open Access Journals (Sweden)

    JUNBEOM YOO

    2013-08-01

    Full Text Available The PLC (Programmable Logic Controller has been widely used to implement real-time controllers in nuclear RPSs (Reactor Protection Systems. Increasing complexity and maintenance cost, however, are now demanding more powerful and cost-effective implementation such as FPGA (Field-Programmable Gate Array. Abandoning all experience and knowledge accumulated over the decades and starting an all-new development approach is too risky for such safety-critical systems. This paper proposes an RPS software development process with a platform change from PLC to FPGA, while retaining all outputs from the established development. This paper transforms FBD designs of the PLC-based software development into a behaviorally-equivalent Verilog program, which is a starting point of a typical FPGA-based hardware development. We expect that the proposed software development process can bridge the gap between two software developing approaches with different platforms, such as PLC and FPGA. This paper also demonstrates its effectiveness using an example of a prototype version of a real-world RPS in Korea.

  1. A Remote PLC Laboratory (RLab) for Distance Practical Work of Industrial Automation

    Science.gov (United States)

    Haritman, E.; Somantri, Y.; Wahyudin, D.; Mulyana, E.

    2018-02-01

    A laboratory is an essential equipment for engineering students to do a useful practical work. Therefore, universities should provide an adequate facility for practical work. On the other hand, industrial automation laboratory would offer students beneficial experience by using various educational PLC kits. This paper describes the development of Web-based Programmable Logic Controller (PLC) remote laboratory called RLab. It provides an environment for learners to study PLC application to control the level of the non-interacting tank. The RLab architecture is based on a Moodle and Remote Desktop, which also manages the booking system of the schedule of practical work in the laboratory. The RLab equipped by USB cameras providing a real-time view of PLC environment. To provide a secured system, the RLab combines Moodle and Remote Desktop application for the authentication system and management of remote users. Moodle will send PartnerID and password to connect to TeamViewer. It has been examined that the laboratory requirement, time and flexibility restrictions constitute a significant obstacle facing traditional students desiring to finish the course. A remote access laboratory can be eliminating time and flexibility restrictions. The preliminary study of RLab usability proved that such system is adequate to give the learners a distance practical work environment.

  2. Homeplug AV and IEEE 1901 a handbook for PLC designers and users

    CERN Document Server

    Latchman, Haniph A; Yonge, Larry; Gavette, Sherman

    2013-01-01

      The only authorized book explaining the HomePlug networking standards HomePlug is a growing technology for creating high-speed Power Line Communication (PLC) networks by transmitting data over in-home or in-office power lines. Users only need to plug adapters into wall outlets to create an instant network of computers, printers, routers, home entertainment

  3. 78 FR 20509 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-04-05

    ... Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking...) RB211-535E4-B-37 series turbofan engines. This proposed AD was prompted by recalculating the life of.... (c) Applicability This AD applies to Rolls-Royce plc (RR) RB211-535E4-B-37 series turbofan engines...

  4. 78 FR 70487 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-11-26

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... turbofan engines. This AD requires removal of certain high-pressure (HP) and intermediate-pressure (IP..., RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines with turbine disc part numbers (P/Ns) and...

  5. 77 FR 39157 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-07-02

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT...-84, and 980-84 turbofan engines. That AD currently requires inspecting the intermediate-pressure (IP... RR model RB211-Trent 970-84, 970B-84, 972-84, 972B-84, 977-84, 977B-84, and 980-84 turbofan engines...

  6. 78 FR 5 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-01-02

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT...-535E4-C-37 turbofan engines. This AD was prompted by an investigation by RR concluding that certain...- 535E4-B-37; RB211-535E4-B-75; and RB211-535E4-C-37 turbofan engines with intermediate-pressure (IP...

  7. 78 FR 37703 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-06-24

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... (RR) model RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. This AD was prompted by low...) model RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. (d) Reason This AD was prompted by low...

  8. 78 FR 70489 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-11-26

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT..., and 560A2-61 turbofan engines. This AD requires replacement or repair of the low-pressure (LP...-61, 556B2-61, 560-61, and 560A2-61 turbofan engines. (d) Reason This AD was prompted by reports of...

  9. 78 FR 22180 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-04-15

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... 972B-84, RB211-Trent 977-84, RB211-Trent 977B-84, and RB211-Trent 980-84 turbofan engines. This AD... 977B-84, and RB211-Trent 980-84 turbofan engines that incorporate RR production Modification 72-G585 or...

  10. 77 FR 20508 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-04-05

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT...-Trent 884B-17, RB211-Trent 892-17, RB211- Trent 892B-17, and RB211-Trent 895-17 turbofan engines. That...-17, RB211- Trent 892B-17, and RB211-Trent 895-17 turbofan engines. On September 9, 2011, we also...

  11. 77 FR 58762 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2012-09-24

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT...-Trent 892-17, RB211- Trent 892B-17, and RB211-Trent 895-17 turbofan engines. That AD currently requires...-17, RB211-Trent 892B-17, and RB211-Trent 895-17 turbofan engines. (d) Unsafe Condition This AD was...

  12. 78 FR 68360 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-11-14

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... turbofan engines. The AD number is incorrect in the Regulatory text. This document corrects that error. In... turbofan engines. As published, the AD number 2013-19-17 under Sec. 39.13 [Amended], is incorrect. No other...

  13. 78 FR 61171 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-10-03

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... (RR) RB211-535E4-B-37 series turbofan engines. This AD requires removal of affected parts using a...-B-37 series turbofan engines. (d) Unsafe Condition This AD was prompted by recalculating the lives...

  14. 78 FR 5126 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-01-24

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... turbofan engines. This AD requires replacement of the fuel oil heat exchanger (FOHE). This AD was prompted...-84 turbofan engines with a fuel oil heat exchanger (FOHE), part number 47111-1241, installed. (d...

  15. Automated Translation of Safety Critical Application Software Specifications into PLC Ladder Logic

    Science.gov (United States)

    Leucht, Kurt W.; Semmel, Glenn S.

    2008-01-01

    The numerous benefits of automatic application code generation are widely accepted within the software engineering community. A few of these benefits include raising the abstraction level of application programming, shorter product development time, lower maintenance costs, and increased code quality and consistency. Surprisingly, code generation concepts have not yet found wide acceptance and use in the field of programmable logic controller (PLC) software development. Software engineers at the NASA Kennedy Space Center (KSC) recognized the need for PLC code generation while developing their new ground checkout and launch processing system. They developed a process and a prototype software tool that automatically translates a high-level representation or specification of safety critical application software into ladder logic that executes on a PLC. This process and tool are expected to increase the reliability of the PLC code over that which is written manually, and may even lower life-cycle costs and shorten the development schedule of the new control system at KSC. This paper examines the problem domain and discusses the process and software tool that were prototyped by the KSC software engineers.

  16. Design of a PLC control program for a batch plant : VHS case study 1

    NARCIS (Netherlands)

    Mader, A.H.; Brinksma, E.; Wupper, H.; Bauer, N.

    2001-01-01

    This article reports on the systematic design and validation of a PLC control program for the batch plant that has been selected as a case study for the EC project on Verification of Hybrid Systems (VHS). We show how a correct design of the control program can be obtained in an incremental manner

  17. Design of a PLC Control Program for a Batch Plant - VHS Case Study 1

    NARCIS (Netherlands)

    Mader, Angelika H.; Brinksma, Hendrik; Wupper, H.; Bauer, N.

    2001-01-01

    This article reports on the systematic design and validation of a PLC control program for the batch plant that has been selected as a case study for the EC project on Verification of Hybrid Systems (VHS). We show how a correct design of the control program can be obtained in an incremental manner

  18. A PLC generic requirements and specification for safety-related applications in nuclear power plants

    International Nuclear Information System (INIS)

    Han, Jea Bok; Lee, C. K.; Lee, D. Y.

    2001-12-01

    This report presents the requirements and specification to be applied to the generic qualification of programmable Logic Controller(PLC), which is being developed as part of the KNICS project, 'Development of the Digital Reactor Safety Systems' of which purpose is the application to safety-related instrumentation and control systems in nuclear power plants. This report defines the essential and critical characteristics that shall be included as part of a PLC design for safety-related application. The characteristics include performance, reliability, accuracy, the overall response time from an input to the PLC exceeding it trip condition to the resulting outputs, and the specification of processors and memories in digital controller. It also specifies the quality assurance process for software development, dealing with executive software, firmware, application software tools for developing the application software, and human machine interface(HMI). In addition, this report reviews the published standards and guidelines that are required for the PLC development and the quality assurance processes such as environment requirements, seismic withstand requirements, EMI/RFI withstand requirements, and isolation test

  19. Úzkopásmová PLC komunikace pro Smart Metering

    OpenAIRE

    Kubů, Jiří

    2016-01-01

    Tato bakalářská práce se zabývá úzkopásmovou PLC komunikací. V práci je popsán základní princip, rozdělení PLC komunikace, historie technologie, využívané komunikační standardy a rušení ovlivňující datovou komunikaci této technologie. V rámci této práce byly provedeny i experimentální měření v reálném prostředí s modemy od firmy Texas Instruments C2000 PLC TMDSPLCKITV4 a C2000 PLC TMDSPLCKIT-V3. Výsledky tohoto měření jsou reálné přenosové rychlosti. Dále byla vytvořena aplikace pro dálkový s...

  20. 76 FR 1985 - Airworthiness Directives; Short Brothers PLC Model SD3 Airplanes

    Science.gov (United States)

    2011-01-12

    ... Airworthiness Directives; Short Brothers PLC Model SD3 Airplanes AGENCY: Federal Aviation Administration (FAA..., at an average labor rate of $85 per work hour. Required parts cost about $10 per product. Based on.... The average labor rate is $85 per work-hour. Based on these figures, we estimate the cost of the AD on...

  1. 75 FR 15321 - Airworthiness Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2010-03-29

    ... Directives; Rolls-Royce plc RB211-Trent 800 Series Turbofan Engines AGENCY: Federal Aviation Administration... Based on the service information, we estimate that this AD will affect about 138 RB211 Trent 800 series... will cost about $2,000 per engine. Based on these figures, we estimate the cost of the AD on U.S...

  2. Applying Hamming Code to Memory System of Safety Grade PLC (POSAFE-Q) Processor Module

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Taehee; Hwang, Sungjae; Park, Gangmin [POSCO Nuclear Technology, Seoul (Korea, Republic of)

    2013-05-15

    If some errors such as inverted bits occur in the memory, instructions and data will be corrupted. As a result, the PLC may execute the wrong instructions or refer to the wrong data. Hamming Code can be considered as the solution for mitigating this mis operation. In this paper, we apply hamming Code, then, we inspect whether hamming code is suitable for to the memory system of the processor module. In this paper, we applied hamming code to existing safety grade PLC (POSAFE-Q). Inspection data are collected and they will be referred for improving the PLC in terms of the soundness. In our future work, we will try to improve time delay caused by hamming calculation. It will include CPLD optimization and memory architecture or parts alteration. In addition to these hamming code-based works, we will explore any methodologies such as mirroring for the soundness of safety grade PLC. Hamming code-based works can correct bit errors, but they have limitation in multi bits errors.

  3. Methods of Certification tests PLC-Networks in Compliance Safety Information

    Directory of Open Access Journals (Sweden)

    A. A. Balaev

    2011-12-01

    Full Text Available The aim of this research was description of the methodology of the audit plc-network to meet the requirements of information security. The technique is based on the provisions of the guidance documents and model FSTEC Russia test object methods of information on safety information.

  4. 78 FR 65313 - Actavis, Inc. a corporation, and Warner Chilott PLC; Analysis of Agreement Containing Consent...

    Science.gov (United States)

    2013-10-31

    ... FEDERAL TRADE COMMISSION [File No. 131 0152] Actavis, Inc. a corporation, and Warner Chilott PLC... https://ftcpublic.commentworks.com/ftc/actaviswarnerconsent following the instructions on the web-based....com/ftc/actaviswarnerconsent by following the instructions on the web-based form. If this Notice...

  5. A Research on Seamless Platform Change of Reactor Protection System From PLC to FPGA

    Energy Technology Data Exchange (ETDEWEB)

    Yoo, Junbeom; Lee, Jonghoon [Konkuk Univ., Seoul (Korea, Republic of); Lee, Jangsoo [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2013-08-15

    The PLC (Programmable Logic Controller) has been widely used to implement real-time controllers in nuclear RPSs (Reactor Protection Systems). Increasing complexity and maintenance cost, however, are now demanding more powerful and cost-effective implementation such as FPGA (Field-Programmable Gate Array). Abandoning all experience and knowledge accumulated over the decades and starting an all-new development approach is too risky for such safety-critical systems. This paper proposes an RPS software development process with a platform change from PLC to FPGA, while retaining all outputs from the established development. This paper transforms FBD designs of the PLC-based software development into a behaviorally-equivalent Verilog program, which is a starting point of a typical FPGA-based hardware development. We expect that the proposed software development process can bridge the gap between two software developing approaches with different platforms, such as PLC and FPGA. This paper also demonstrates its effectiveness using an example of a prototype version of a real-world RPS in Korea.

  6. Power supply system on HT-7 tokamak for diagnostic neutral beam based on PLC

    International Nuclear Information System (INIS)

    Zhang Jian; Liu Baohua; Ding Tonghai; Du Shaowu

    2006-01-01

    A power supply system for diagnostic neutral beam on the HT-7 Tokamak was developed. Its logic control system based on S7-300 PLC was described. The experimental results show that the system is easy to operate and its performance is reliable. (authors)

  7. A Research on Seamless Platform Change of Reactor Protection System From PLC to FPGA

    International Nuclear Information System (INIS)

    Yoo, Junbeom; Lee, Jonghoon; Lee, Jangsoo

    2013-01-01

    The PLC (Programmable Logic Controller) has been widely used to implement real-time controllers in nuclear RPSs (Reactor Protection Systems). Increasing complexity and maintenance cost, however, are now demanding more powerful and cost-effective implementation such as FPGA (Field-Programmable Gate Array). Abandoning all experience and knowledge accumulated over the decades and starting an all-new development approach is too risky for such safety-critical systems. This paper proposes an RPS software development process with a platform change from PLC to FPGA, while retaining all outputs from the established development. This paper transforms FBD designs of the PLC-based software development into a behaviorally-equivalent Verilog program, which is a starting point of a typical FPGA-based hardware development. We expect that the proposed software development process can bridge the gap between two software developing approaches with different platforms, such as PLC and FPGA. This paper also demonstrates its effectiveness using an example of a prototype version of a real-world RPS in Korea

  8. 76 FR 25353 - Hikma Pharmaceuticals PLC; Analysis of Agreement Containing Consent Orders To Aid Public Comment

    Science.gov (United States)

    2011-05-04

    ... FEDERAL TRADE COMMISSION [File No. 111 0051] Hikma Pharmaceuticals PLC; Analysis of Agreement...-based form. To ensure that the Commission considers an electronic comment, you must file it on the Web-based form at the Web link: https://ftcpublic.commentworks.com/ftc/hikmabaxter . If this Notice appears...

  9. Five Year Retrospective Study of the Financial Situation of Northern Foods Plc., United Kingdom

    Directory of Open Access Journals (Sweden)

    Louie DACOSTA

    2016-09-01

    Full Text Available This study was conducted as a retrospective analysis of Northern Foods Plc., once a major player in FTSE 350 Food Sector, to evaluate its financial situation over a five year period. The ex post factor research design was used for this study. Annual reports and databases on Northern Foods Plc., and Associated British Foods Plc., were used to perform a series of ratio analyses. The results revealed that Northern Foods Plc.’s performance has been declining as evidenced in the profitability ratios calculated. Also, financial strength was weak and working capital has not been effectively managed, hence affecting its cash and profit generation potentials. The company was limited in its ability to grow and expand as it needed to regularly fund its pension deficit, and finance its high levels of debt. The study concludes that Northern Foods was not in a very strong financial position, yet it was not making the required investments to improve, hence its takeover though this paper will not rule out non-financial issues. Furthermore, the study prescribed five generic points to improve the financial health of any organisation.

  10. Wavelet-OFDM Signal Transmission Characteristics with High-Speed PLC Modem

    Science.gov (United States)

    Nakagawa, Kenichi; Tokuda, Masamitsu; Igata, Yuji

    In this paper, we measured the interference immunity characteristics of high-speed PLC system using Wavelet-OFDM when the narrowband conducted interference wave signal was injected. As the results, it was clear that (1) measured PHY rate at the all frequency band hardly decreased in C/I (Carrier to Interference ratio) of above 20dB, but began to decrease rapidly in C/I of below 0dB when the interference signal was injected in the frequency band of high-speed PLC signal, (2) when C/I became from 0dB to -20dB, the measured PHY rate at the frequency existing the notch band were improved around 10Mbps than that at the frequency not existing the notch band, (3) when the narrowband interference wave was injected outside of frequency band of high-speed PLC signal, the measured PHY rate did not decrease than that in each notch band. Therefore, it was revealed that high-speed PLC system using Wavelet-OFDM had good interference immunity characteristics.

  11. 76 FR 29814 - Statutory Debarment and Reinstatement of BAE Systems plc

    Science.gov (United States)

    2011-05-23

    ... Bureau of Political-Military Affairs; Statutory Debarment and Reinstatement of BAE Systems plc and Policy... of Defense Trade Controls Compliance, Bureau of Political-Military Affairs, Department of State (202... required. Statutory debarment is based solely upon conviction in a criminal proceeding, conducted by a...

  12. Fuel cycle and waste management: A perspective from British nuclear fuels plc

    International Nuclear Information System (INIS)

    Holmes, R.G.G.; Fairhall, G.A.; Robbins, R.A.

    1996-01-01

    The phrase fuel cycle and waste management implies two separate and distinct activities. British Nuclear Fuels plc (BNFL) has adopted a holistic approach to the fuel cycle that integrates the traditional fuel cycle activities of conversion to uranium hexafluoride, fuel fabrication, power generation, and reprocessing with waste arisings, its subsequent treatment, and disposal

  13. What is the method in applying formal methods to PLC applications?

    NARCIS (Netherlands)

    Mader, Angelika H.; Engel, S.; Wupper, Hanno; Kowalewski, S.; Zaytoon, J.

    2000-01-01

    The question we investigate is how to obtain PLC applications with confidence in their proper functioning. Especially, we are interested in the contribution that formal methods can provide for their development. Our maxim is that the place of a particular formal method in the total picture of system

  14. Dealing with Phrase Level Co-Articulation (PLC) in speech recognition: a first approach

    NARCIS (Netherlands)

    Ordelman, Roeland J.F.; van Hessen, Adrianus J.; van Leeuwen, David A.; Robinson, Tony; Renals, Steve

    1999-01-01

    Whereas nowadays within-word co-articulation effects are usually sufficiently dealt with in automatic speech recognition, this is not always the case with phrase level co-articulation effects (PLC). This paper describes a first approach in dealing with phrase level co-articulation by applying these

  15. A PLC platform-independent structural analysis on FBD programs for digital reactor protection systems

    International Nuclear Information System (INIS)

    Jung, Sejin; Yoo, Junbeom; Lee, Young-Jun

    2017-01-01

    Highlights: • FBD has been widely used to implement safety-critical software for PLC-based systems. • The safety-critical software should be developed strictly with safety programming guidelines. • There are no argued rules that have specific links to higher guidelines NUREG/CR-6463 PLC platform-independently. • This paper proposes a set of rules on the structure of FBD programs with providing specific links to higher guidelines. • This paper also provides CASE tool ‘FBD Checker’ for analyzing the structure of FBD. - Abstract: FBD (function block diagram) has been widely used to implement safety-critical software for PLC (programmable logic controller)-based digital nuclear reactor protection systems. The software should be developed strictly in accordance with safety programming guidelines such as NUREG/CR-6463. Software engineering tools of PLC vendors enable us to present structural analyses using FBD programs, but specific rules pertaining to the guidelines are enclosed within the commercial tools, and specific links to the guidelines are not clearly communicated. This paper proposes a set of rules on the structure of FBD programs in accordance with guidelines, and we develop an automatic analysis tool for FBD programs written in the PLCopen TC6 format. With the proposed tool, any FBD program that is transformed into an open format can be analyzed the PLC platform-independently. We consider a case study on FBD programs obtained from a preliminary version of a Korean nuclear power plant, and we demonstrate the effectiveness and potential of the proposed rules and analysis tool.

  16. El Club Dumas de Arturo Pérez-Reverte como paradigma de la narrativa posmoderna española

    OpenAIRE

    Isaac Gómez Laguna

    2015-01-01

    El presente artículo ofrece un análisis de los diferentes rasgos posmodernistas que aparecen de manera explícita en El Club Dumas, novela insignia de la narrativa posmoderna en España, en torno a tres ejes centrales: a) género de la obra e intertextualidad, b) indeterminación e irrealidad, y c) individuo y sociedad. Mediante esta reflexión pretendemos evidenciar que su autor, Arturo Pérez-Reverte, no solo crea una novela puramente posmoderna, sino que su obra le sirve para teorizar acerca del...

  17. El Club Dumas de Arturo Pérez-Reverte como paradigma de la narrativa posmoderna española

    Directory of Open Access Journals (Sweden)

    Isaac Gómez Laguna

    2015-06-01

    Full Text Available El presente artículo ofrece un análisis de los diferentes rasgos posmodernistas que aparecen de manera explícita en El Club Dumas, novela insignia de la narrativa posmoderna en España, en torno a tres ejes centrales: a género de la obra e intertextualidad, b indeterminación e irrealidad, y c individuo y sociedad. Mediante esta reflexión pretendemos evidenciar que su autor, Arturo Pérez-Reverte, no solo crea una novela puramente posmoderna, sino que su obra le sirve para teorizar acerca del posmodernismo.

  18. Application of PLC to dynamic control system for liquid He cryogenic pumping facility on JT-60U NBI system

    International Nuclear Information System (INIS)

    Honda, A.; Okano, F.; Ooshima, K.; Akino, N.; Kikuchi, K.; Tanai, Y.; Takenouchi, T.; Numazawa, S.; Ikeda, Y.

    2008-01-01

    The control system of the cryogenic facility in the JT-60 NBI system has been replaced by employing the PLC (Programmable Logic Controller) and SCADA (Supervisory Control And Data Acquisition) system. The original control system was constructed about 20 years ago by specifying the DCS (Distributed Control System) computer to deal with ∼400 feedback loops. Recently, troubles on this control system have increased due to its age-induced deterioration. To maintain the high reliability of the cryogenic facility, a new control system has been planned with the PLC and SCADA systems. Their attractive features include high market availability and cost-effectiveness, however, the use of PLC for such a large facility with ∼400 feedback loops has not been established because of insufficient processing capability of the early PLC. Meanwhile, the recent progress in the PLC enables to use the FBD (function block diagram) programming language for 500 function blocks. By optimizing the function blocks and connecting them in the FBD language, the feedback loops have been successfully replaced from DCS to PLC without a software developer. Moreover, an oscillation of the liquid He level, which often occurs during the cooldown mode of the cryopumps, can be automatically stabilized by easily adding a new process program in the PLC. At present, the new control system has worked well

  19. Restructuring of SE, Plc - from a functionally managed company to a process managed commercial-production company

    International Nuclear Information System (INIS)

    Ravasz, V.

    2004-01-01

    The purpose of this presentation is to inform the participants about present changes currently occurred within Slovenske elektrarne, a. s. (SE, Plc). Changes are related to the liberalisation of the electricity market and expected accession of Slovakia to EU. To support its competitiveness, the SE, Plc became a customer-oriented company, prepared to the access of strategic investor. The paper includes the basic information about centralisation and project of Restructuring of SE, Plc., which has started in December 2003. The aim of Restructuring is the change from functionally managed company to a process managed commercial-production company

  20. A Cost Effective Solution for Development Environment for Data Acquisition, Monitoring and Simulation of PLC Controlled Applications

    Directory of Open Access Journals (Sweden)

    O. Bjelica

    2014-06-01

    Full Text Available It is very important to test and monitor the operation of Programmable Logic Controller (PLC in real time (online. Nowadays, conventional, but expensive monitoring systems for PLCs, such as Supervisory Control and Data Acquisition (SCADA systems, software and hardware simulators (or debuggers, are widely used. This paper proposes a user friendly and cost-effective development environment for monitoring, data acquisition and online simulation of applications with PLC. The purpose of this solution is to simulate the process which is controlled by the PLC. The performances of the proposed development environment are presented on the examples of washing machine and dishwasher simulators.

  1. Session 1984-1985. Radioactive waste. Minutes of evidence, Monday 13 May 1985. British Nuclear Fuels plc

    Energy Technology Data Exchange (ETDEWEB)

    1985-01-01

    The Environment Select Committee of the House of Commons received a memorandum from British Nuclear Fuels plc on the treatment and preparation for disposal of radioactive wastes, under the headings: introduction; waste categories; waste management policy; waste arisings; waste treatment plans; appendix I - British Nuclear Fuels plc; appendix II - the nuclear fuel cycle for Magnox, AGR and LWR reactors; appendix III - control of liquid radioactive discharges from Sellafield and their environmental impact. Representatives of BNF plc were examined on the subject of the memorandum and the minutes of evidence are recorded.

  2. Session 1984-85. Radioactive waste. Minutes of evidence, Monday 13 May 1985. British Nuclear Fuels plc

    International Nuclear Information System (INIS)

    1985-01-01

    The Environment Select Committee of the House of Commons received a memorandum from British Nuclear Fuels plc on the treatment and preparation for disposal of radioactive wastes, under the headings: introduction; waste categories; waste management policy; waste arisings; waste treatment plans; appendix I - British Nuclear Fuels plc; appendix II - the nuclear fuel cycle for Magnox, AGR and LWR reactors; appendix III - control of liquid radioactive discharges from Sellafield and their environmental impact. Representatives of BNF plc were examined on the subject of the memorandum and the minutes of evidence are recorded. (U.K.)

  3. Factores asociados con el uso inconsistente de condón en hombres que tienen sexo con hombres de ciudad juárez

    OpenAIRE

    Mendoza-Pérez, Juan C.; Ortiz-Hernández, Luis

    2012-01-01

    Objetivo Analizar los factores asociados con el uso inconsistente de condón en hombres que tienen sexo con hombres (HSH) de Ciudad Juárez, Chihuahua. Material y métodos Se realizó un estudio observacional, transversal y analítico con una muestra por conveniencia (n=186) de HSH de Ciudad Juárez. Las variables independientes fueron: nivel socioeconómico, actitudes hacia del uso del condón, uso de drogas, consumo de alcohol, identidad por orientación sexual y la discrimina­ción por orientación s...

  4. Double Exposure and the Climate Gap: Changing demographics and extreme heat in Ciudad Juárez, Mexico

    Science.gov (United States)

    Collins, Timothy W.; McDonald, Yolanda J.; Aldouri, Raed; Aboargob, Faraj; Eldeb, Abdelatif; Aguilar, María de Lourdes Romo; Velázquez-Angulo, Juárez Gilberto

    2013-01-01

    Scholars have recognized a climate gap, wherein poor communities face disproportionate impacts of climate change. Others have noted that climate change and economic globalization may mutually affect a region or social group, leading to double exposure. This paper investigates how current and changing patterns of neighborhood demographics are associated with extreme heat in the border city of Juárez, Mexico. Many Juárez neighborhoods are at-risk to triple exposures, in which residents suffer due to the conjoined effects of the global recession, drug war violence, and extreme heat. Due to impacts of the recession on maquiladora employment and the explosion of drug violence (since 2008), over 75% of neighborhoods experienced decreasing population density between 2000 and 2010 and the average neighborhood saw a 40% increase in the proportion of older adults. Neighborhoods with greater drops in population density and increases in the proportion of older residents over the decade are at significantly higher risk to extreme heat, as are neighborhoods with lower population density and lower levels of education. In this context, triple exposures are associated with a climate gap that most endangers lower socioeconomic status and increasingly older aged populations remaining in neighborhoods from which high proportions of residents have departed. PMID:25642135

  5. Capacitación de líderes comunitarios como gestores sociales en Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    Carmen Álvarez

    2015-01-01

    Full Text Available El trabajo consiste en describir el desarrollo de un esquema de capacitación de líderes co - munitarios. El enfoque de la formación está dirigido a la gestión de proyectos de incidencia en las comunidades, basándose en diagnósticos participativos. El taller de formación de líderes comunitarios fue desarrollado por la Comisión Nacional para Prevenir y Erradicar la Violencia contra las Mujeres (Conavim en conjunto con la Universidad Autónoma de Ciudad Juárez y la Fundación del Empresariado Chihuahuense (Fechac y se diseñó tomando en consideración el ambiente de crisis social y de seguridad por la que atravesó Ciudad Juárez, así como en las necesidades de capacitación de promotores sociales expresadas en el programa “Todos somos Juárez”.

  6. O direito da guerra em Francisco Suárez: o projeto civilizador da Escolástica Espanhola

    Directory of Open Access Journals (Sweden)

    Paulo Emílio Borges de Macedo

    2013-03-01

    Full Text Available O presente texto analisa o direito da guerra em Francisco Suárez. Menos uma explanação sobre um ramo do direito internacional, neste trabalho, busca investigar-se a origem deste direito, sob uma ótica bastante particular. Trata-se de reconstruir o intento de um dos maiores expositores da Escolástica Espanhola para salvar uma tradição cristã muito antiga da sua destruição. A doutrina da guerra justa, embora de origem cristã, corresponde a um dos maiores esforços da humanidade como um todo para limitar a violência da guerra, mesmo antes da existência de um direito internacional. Para manter a validade das proposições da teoria da guerra justa – e minimizar os efeitos da guerra –, Suárez precisou alterar-lhe o fundamento: de doutrina religiosa, ela se tornou jurídica.

  7. Suárez, el derecho natural y la crítica contemporánea

    Directory of Open Access Journals (Sweden)

    Sebastián Contreras

    2017-07-01

    Full Text Available Los actuales defensores de la teoría de la ley natural, en su mayoría, sindican a Suárez como el responsable de introducir una interpretación fisicalista de santo Tomás. Por fisicalismo entienden la doctrina moral según la cual las acciones son buenas o malas por comparación a la naturaleza. Se trata, entonces, de la identificación de la ley natural con la naturaleza racional. Suárez, sin embargo, rechaza esta posición, argumentando que la naturaleza no es una regla moral sino el fundamento de los principios naturales. El trabajo, pues, consiste en una revisión de la filosofía suarista sobre la ley natural, con un énfasis especial en la crítica que hacen de ella los autores de la filosofía contemporánea.

  8. PLC-controlled cryostats for the BlackGEM and MeerLICHT detectors

    Science.gov (United States)

    Raskin, Gert; Morren, Johan; Pessemier, Wim; Bloemen, Steven; Klein-Wolt, Marc; Roelfsema, Ronald; Groot, Paul; Aerts, Conny

    2016-08-01

    BlackGEM is an array of telescopes, currently under development at the Radboud University Nijmegen and at NOVA (Netherlands Research School for Astronomy). It targets the detection of the optical counterparts of gravitational waves. The first three BlackGEM telescopes are planned to be installed in 2018 at the La Silla observatory (Chile). A single prototype telescope, named MeerLICHT, will already be commissioned early 2017 in Sutherland (South Africa) to provide an optical complement for the MeerKAT radio array. The BlackGEM array consists of, initially, a set of three robotic 65-cm wide-field telescopes. Each telescope is equipped with a single STA1600 CCD detector with 10.5k x 10.5k 9-micron pixels that covers a 2.7 square degrees field of view. The cryostats for housing these detectors are developed and built at the KU Leuven University (Belgium). The operational model of BlackGEM requires long periods of reliable hands-off operation. Therefore, we designed the cryostats for long vacuum hold time and we make use of a closed-cycle cooling system, based on Polycold PCC Joule-Thomson coolers. A single programmable logic controller (PLC) controls the cryogenic systems of several BlackGEM telescopes simultaneously, resulting in a highly reliable, cost-efficient and maintenance-friendly system. PLC-based cryostat control offers some distinct advantages, especially for a robotic facility. Apart of temperature monitoring and control, the PLC also monitors the vacuum quality, the power supply and the status of the PCC coolers (compressor power consumption and temperature, pressure in the gas lines, etc.). Furthermore, it provides an alarming system and safe and reproducible procedures for automatic cool down and warm up. The communication between PLC and higher-level software takes place via the OPC-UA protocol, offering a simple to implement, yet very powerful interface. Finally, a touch-panel display on the PLC provides the operator with a user-friendly and robust

  9. Development of Application Programming Tool for Safety Grade PLC (POSAFE-Q)

    International Nuclear Information System (INIS)

    Koo, Kyungmo; You, Byungyong; Kim, Tae-Wook; Cho, Sengjae; Lee, Jin S.

    2006-01-01

    The pSET (POSAFE-Q Software Engineering Tool) is an application programming tool of the POSAFE-Q which is a safety graded programmable logic controller (PLC) developed for the reactor protect system of the nuclear power plant. The pSET provides an integrated development environment (IDE) which includes editors, compiler, simulator, down loader, debugger, and monitor. The pSET supports the IEC61131-3 standard software model and languages such as LD (ladder diagram) and FBD (function block diagram) which are two of the most widely used PLC programming languages in industry fields. The pSET will also support SFC (sequential function chart) language. The pSET is developed as a part of a Korea Nuclear Instrumentation and Control System (KNICS) project

  10. Development of a PLC modem for data transmission over a PWM power supply

    Science.gov (United States)

    Batard, Christophe; Ginot, Nicolas; Mannah, Marc Anthony; Millet, Christophe; Poitiers, Frédéric

    2014-04-01

    In variable-speed electrical drive and online conditioning monitoring, a feedback loop is required in order to transmit the sensor information from the motor to the controller close to the inverter. Additional cabling is used for signalling. This extra cabling has a significant cost and data transmission may not be reliable. Thus, the use of power line communication (PLC) technology to transmit data in motor drive application is quite interesting. The use of a PLC modem dedicated to the home network in a three-phase inverter-fed motor power cable does not work. Therefore, specific coupling interfaces are developed to transmit data through a pulse-width modulated power supply. Laboratory tests have shown that the couplers are operating properly. They ensure reliable data transmission in a motor drive application.

  11. Saltwell PIC Skid Programmable Logic Controller (PLC) Software Configuration Management Plan

    International Nuclear Information System (INIS)

    KOCH, M.R.

    1999-01-01

    This document provides the procedures and guidelines necessary for computer software configuration management activities during the operation and maintenance phases of the Saltwell PIC Skids as required by LMH-PRO-309/Rev. 0, Computer Software Quality Assurance, Section 2.6, Software Configuration Management. The software configuration management plan (SCMP) integrates technical and administrative controls to establish and maintain technical consistency among requirements, physical configuration, and documentation for the Saltwell PIC Skid Programmable Logic Controller (PLC) software during the Hanford application, operations and maintenance. This SCMP establishes the Saltwell PIC Skid PLC Software Baseline, status changes to that baseline, and ensures that software meets design and operational requirements and is tested in accordance with their design basis

  12. Evaluation of a fast PLC module in prospect of the LHC beam interlock system

    CERN Document Server

    Zaera-Sanz, Manuel

    2005-01-01

    The LHC Beam Interlock system requires a controller performing a simple matrix function to collect the different beam dump requests. To satisfy the expected safety level of the Interlock, the system should be robust and reliable. The PLC is a promising candidate to fulfil both aspects but too slow to meet the expected response time which is of the order of mseconds. Siemens has introduced a “so called” fast module (FM352-5 Boolean Processor) that provides independent and extremely fast control of a process within a larger control system using an onboard processor, a Field Programmable Gate Array (FPGA), to execute code in parallel which results in extremely fast scan times. It is interesting to investigate its features and to evaluate it as a possible candidate for the beam interlock system. This note publishes the results of this study. As well, this note could be useful for other applications requiring fast processing using a PLC.

  13. Integrated software environment dedicated for implementation of control systems based on PLC controllers

    Directory of Open Access Journals (Sweden)

    Szymon SURMA

    2007-01-01

    Full Text Available Industrial processes’ control systems based on PLC controllers play today a very important role in all fields of transport, including also sea transport. Construction of control systems is the field of engineering, which has been continuously evolving towards maximum simplification of system design path. Up to now the time needed forthe system construction from the design to commissioning had to be divided into a few stages. A mistake made in an earlier stage caused that in most cases the next stages had to be restarted. Available debugging systems allows defect detection at an early stage of theproject implementation. The paper presents general characteristic of integrated software for implementation of complex control systems. The issues related to the software use for programming of the visualisation environment, control computer, selection oftransmission medium and transmission protocol as well as PLC controllers’ configuration, software and control have been analysed.

  14. Enhanced Operation of Electricity Distribution Grids Through Smart Metering PLC Network Monitoring, Analysis and Grid Conditioning

    Directory of Open Access Journals (Sweden)

    Iker Urrutia

    2013-01-01

    Full Text Available Low Voltage (LV electricity distribution grid operations can be improved through a combination of new smart metering systems’ capabilities based on real time Power Line Communications (PLC and LV grid topology mapping. This paper presents two novel contributions. The first one is a new methodology developed for smart metering PLC network monitoring and analysis. It can be used to obtain relevant information from the grid, thus adding value to existing smart metering deployments and facilitating utility operational activities. A second contribution describes grid conditioning used to obtain LV feeder and phase identification of all connected smart electric meters. Real time availability of such information may help utilities with grid planning, fault location and a more accurate point of supply management.

  15. Design of monitoring system for mail-sorting based on the Profibus S7 series PLC

    Science.gov (United States)

    Zhang, W.; Jia, S. H.; Wang, Y. H.; Liu, H.; Tang, G. C.

    2017-01-01

    With the rapid development of the postal express, the workload of mail sorting is increasing, but the automatic technology of mail sorting is not mature enough. In view of this, the system uses Siemens S7-300 PLC as the main station controller, PLC of Siemens S7-200/400 is from the station controller, through the man-machine interface configuration software MCGS, PROFIBUS-DP communication, RFID technology and mechanical sorting hand achieve mail classification sorting monitoring. Among them, distinguish mail-sorting by scanning RFID posted in the mail electronic bar code (fixed code), the system uses the corresponding controller on the acquisition of information processing, the processed information transmit to the sorting manipulator by PROFIBUS-DP. The system can realize accurate and efficient mail sorting, which will promote the development of mail sorting technology.

  16. Design and control of multifunctional sorting and training platform based on PLC control

    Science.gov (United States)

    Wan, Hongqiang; Ge, Shuai; Han, Peiying; Li, Fancong; Zhang, Simiao

    2018-05-01

    Electromechanical integration, as a multi-disciplinary subject, has been paid much attention by universities and is widely used in the automation production of enterprises. Aiming at the problem of the lack of control among enterprises and the lack of training among colleges and universities, this paper presents a design of multifunctional sorting training platform based on PLC control. Firstly, the structure of the platform is determined and three-dimensional modeling is done. Then design the platform's aerodynamic control and electrical control. Finally, realize the platform sorting function through PLC programming and configuration software development. The training platform can be used to design the practical training experiment, which has a strong advance and pertinence in the electromechanical integration teaching. At the same time, the platform makes full use of modular thinking to make the sorting modules more flexible. Compared with the traditional training platform, its teaching effect is more significant.

  17. Comparative analysis of different configurations of PLC-based safety systems from reliability point of view

    Science.gov (United States)

    Tapia, Moiez A.

    1993-01-01

    The study of a comparative analysis of distinct multiplex and fault-tolerant configurations for a PLC-based safety system from a reliability point of view is presented. It considers simplex, duplex and fault-tolerant triple redundancy configurations. The standby unit in case of a duplex configuration has a failure rate which is k times the failure rate of the standby unit, the value of k varying from 0 to 1. For distinct values of MTTR and MTTF of the main unit, MTBF and availability for these configurations are calculated. The effect of duplexing only the PLC module or only the sensors and the actuators module, on the MTBF of the configuration, is also presented. The results are summarized and merits and demerits of various configurations under distinct environments are discussed.

  18. Evaluation and application of a fast module in a PLC based interlock and control system

    International Nuclear Information System (INIS)

    Zaera-Sanz, M

    2009-01-01

    The LHC Beam Interlock system requires a controller performing a simple matrix function to collect the different beam dump requests. To satisfy the expected safety level of the Interlock, the system should be robust and reliable. The PLC is a promising candidate to fulfil both aspects but too slow to meet the expected response time which is of the order of μseconds. Siemens has introduced a 'so called' fast module (FM352-5 Boolean Processor). It provides independent and extremely fast control of a process within a larger control system using an onboard processor, a Field Programmable Gate Array (FPGA), to execute code in parallel which results in extremely fast scan times. It is interesting to investigate its features and to evaluate it as a possible candidate for the beam interlock system. This paper publishes the results of this study. As well, this paper could be useful for other applications requiring fast processing using a PLC.

  19. Amarogentin, a secoiridoid glycoside, abrogates platelet activation through PLC γ 2-PKC and MAPK pathways.

    Science.gov (United States)

    Yen, Ting-Lin; Lu, Wan-Jung; Lien, Li-Ming; Thomas, Philip Aloysius; Lee, Tzu-Yin; Chiu, Hou-Chang; Sheu, Joen-Rong; Lin, Kuan-Hung

    2014-01-01

    Amarogentin, an active principle of Gentiana lutea, possess antitumorigenic, antidiabetic, and antioxidative properties. Activation of platelets is associated with intravascular thrombosis and cardiovascular diseases. The present study examined the effects of amarogentin on platelet activation. Amarogentin treatment (15~60  μM) inhibited platelet aggregation induced by collagen, but not thrombin, arachidonic acid, and U46619. Amarogentin inhibited collagen-induced phosphorylation of phospholipase C (PLC) γ2, protein kinase C (PKC), and mitogen-activated protein kinases (MAPKs). It also inhibits in vivo thrombus formation in mice. In addition, neither the guanylate cyclase inhibitor ODQ nor the adenylate cyclase inhibitor SQ22536 affected the amarogentin-mediated inhibition of platelet aggregation, which suggests that amarogentin does not regulate the levels of cyclic AMP and cyclic GMP. In conclusion, amarogentin prevents platelet activation through the inhibition of PLC γ2-PKC cascade and MAPK pathway. Our findings suggest that amarogentin may offer therapeutic potential for preventing or treating thromboembolic disorders.

  20. Comportamiento de la Tecnología PLC en la Red Eléctrica

    OpenAIRE

    García Guibout, J.; García Garino, Carlos; Fusario, Rubén J.; Castro Lechtaler, Antonio; Sevilla, Guillermo

    2007-01-01

    La tecnología PLC1 - PowerLine Communications- está referida a la transmisión de datos utilizando la red eléctrica, tanto domiciliaria, como la red de distribución de baja tensión. Dependiendo del tipo de red que se utilice como soporte esta tecnología se divide en PLC indoor y outdoor. La primera se refiere a la utilización de la red domiciliaria y utiliza las frecuencias más altas de 5 MHz a 30 ó 40 MHz. La segunda, outdoor, usa la red de distribución y las frecuencias bajas de 1 MHz a 5 ó ...

  1. Saltwell Leak Detector Station Programmable Logic Controller (PLC) Software Configuration Management Plan (SCMP)

    International Nuclear Information System (INIS)

    WHITE, K.A.

    2000-01-01

    This document provides the procedures and guidelines necessary for computer software configuration management activities during the operation and maintenance phases of the Saltwell Leak Detector Stations as required by HNF-PRO-309/Rev.1, Computer Software Quality Assurance, Section 2.4, Software Configuration Management. The software configuration management plan (SCMP) integrates technical and administrative controls to establish and maintain technical consistency among requirements, physical configuration, and documentation for the Saltwell Leak Detector Station Programmable Logic Controller (PLC) software during the Hanford application, operations and maintenance. This SCMP establishes the Saltwell Leak Detector Station PLC Software Baseline, status changes to that baseline, and ensures that software meets design and operational requirements and is tested in accordance with their design basis

  2. Developing a Novel USB-PLC Controller for a Mechatronics Cloud Laboratory

    Directory of Open Access Journals (Sweden)

    Wen-Jye Shyr

    2013-04-01

    Full Text Available This study proposes the development and implementation of a novel Universal Serial Bus (USB-Programmable Logic Controller (PLC, called a USB-PLC controller, for a mechatronics cloud laboratory. The aim of a mechatronics cloud laboratory is to provide state of the art research quality equipment to students, allowing them to conduct hands-on experiments via the Internet. One objective of the cloud laboratory is to not only provide equipment for conducting set experiments, but also to provide a means for students to access research equipment in order to conduct individual research experiments. The proposed controller for these cloud laboratory experiments has been chosen in order to expose the students to as many different engineering and technology disciplines as possible.

  3. PLC based automatic control of pasteurize mix in ice cream production

    Science.gov (United States)

    Yao, Xudong; Liang, Kai

    2013-03-01

    This paper describes the automatic control device of pasteurized mix in the ice cream production process.We design a scheme of control system using FBD program language and develop the programmer in the STEP 7-Micro/WIN software, check for any bugs before downloading into PLC .These developed devices will able to provide flexibility and accuracy to control the step of pasteurized mix. The operator just Input the duration and temperature of pasteurized mix through control panel. All the steps will finish automatically without any intervention in a preprogrammed sequence stored in programmable logic controller (PLC). With the help of this equipment we not only can control the quality of ice cream for various conditions, but also can simplify the production process. This control system is inexpensive and can be widely used in ice cream production industry.

  4. Development of Remote Monitoring and a Control System Based on PLC and WebAccess for Learning Mechatronics

    OpenAIRE

    Wen-Jye Shyr; Te-Jen Su; Chia-Ming Lin

    2013-01-01

    This study develops a novel method for learning mechatronics using remote monitoring and control, based on a programmable logic controller (PLC) and WebAccess. A mechatronics module, a Web‐CAM and a PLC were integrated with WebAccess software to organize a remote laboratory. The proposed system enables users to access the Internet for remote monitoring and control of the mechatronics module via a web browser, thereby enhancing work flexibility by enabling personnel to control mechatronics equ...

  5. Effective time management for high performance in an organization Case: Lasaco Assurance PLC

    OpenAIRE

    Adeojo, Adeyinka

    2012-01-01

    The main objective of this thesis is to determine the effect of time management on high organizational performance using LASACO ASSURANCE Plc. as a case company. In this thesis, the employees working with the company were sent questionnaires. Their responses were critically analyzed and thus related to the theories. A quantitative approach was used as the methodology. According to the theory, time management is a method for managers to increase work performance effectiveness. Time man...

  6. 78 FR 54152 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-09-03

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT...; -535C-37; -535E4-37; - 535E4-B-37, and -535E4-B-75 turbofan engines, and all RB211-524G2-19; - 524G3-19; -524H2-19; and -524H-36 turbofan engines. This AD requires a one-time inspection of the front combustion...

  7. 78 FR 61168 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-10-03

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT... (RR) RB211-535E4-37, RB211-535E4-B-37, RB211-535E4-C- 37, and RB211-535E4-B-75 turbofan engines. This...-37, RB211-535E4-B-37, RB211-535E4-C-37, and RB211-535E4-B-75 turbofan engines. (d) Unsafe Condition...

  8. 78 FR 60658 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines

    Science.gov (United States)

    2013-10-02

    ... Airworthiness Directives; Rolls-Royce plc Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT..., 892-17, 892B-17, and 895-17; and RB211-524G2-T-19, -524G3-T- 19, -524H-T-36, and -524H2-T-19 turbofan... (RR) model turbofan engines that have a high-pressure (HP) compressor stage 1 to 4 rotor disc...

  9. Design and development of PLC based offline impedance matching system for ICRH experiment

    International Nuclear Information System (INIS)

    Joshi, Ramesh; Jadav, H.M.; Mali, Aniruddh; Kulkarni, S.V.

    2015-01-01

    Ion Cyclotron Resonance Heating (ICRH) transmission line has two impedance matching networks, one for offline matching which has been employed before experimental shot. Another is online impedance matching which has been employed during experimental shot. Offline matching network consists of two static stubs, coarse tuner and coarse phase shifter identical in both transmission lines. There are motorized arrangement installed in each stubs and phase shifters. Both stubs are being used to vary transmission line length. Phase shifter is used to match the frequency of generated RF power. Programmable Logic Controller (PLC) based automation and control technique has been designed and developed for the system. Offline matching should be operated below 1 kHz frequency in order to move stepper motors. Program generates required square pulses which employed to motor controller to move either in upward or downward direction. In existing system this operation has been carried out using VME. To reduce the load on VME, PLC based system has been designed and integrated with main DAC system. WinCC software has been used (as SCADA/HMI) to develop front end GUI which communicates with OPC server. Further, OPC communicates with PLC for control of motorized arrangement. This paper describes technical details,design and development of PLC based offline matching system using WinCC as user interface. The communication between WinCC application and hardware devices was realized by OPC technique. The developed system has friendly graphical user interface, high-level automation and comprehensive function such as experimental process control. The system was proved to be reliable and accurate in practical application. (author)

  10. Based on the Hardware Resources Configurable Shanke PLC Building Energy Consumption Detection System

    Directory of Open Access Journals (Sweden)

    Cheng Guanghe

    2017-01-01

    Full Text Available According to the actual situation of the comprehensive office building and the functional requirements of the building energy consumption monitoring and management system, the office building energy consumption monitoring and management system is designed by using the hardware resource configurable Shanke PLC(SKPLC as the data collector. The system uses data bus technology and field data acquisition technology to achieve the building energy consumption data acquisition and management. Practice has proved that energy-saving effect is good.

  11. 160 Gb/s OFDM transmission utilizing an all-optical symbol generator based on PLC

    Science.gov (United States)

    Liang, Xiaojun; Qiao, Yaojun; Li, Wei; Mei, Junyao; Qin, Yi

    2009-11-01

    We demonstrate a 160 Gb/s orthogonal frequency division multiplexing (OFDM) system using an all-optical symbol generator based on planar light circuit (PLC) technology. Excellent bit error rate (BER) is observed after long-distance transmission. The proposed symbol generator fundamentally eliminates the processing speed limits introduced by electronics and is suitable for high integration, making it physically realizable to build high-speed all-optical OFDM systems with a large number of subcarriers.

  12. Increase in Multicast OFDM Data Rate in PLC Network using Adaptive LP-OFDM

    OpenAIRE

    Maiga , Ali; Baudais , Jean-Yves; Hélard , Jean-François

    2009-01-01

    ISBN: 978-1-4244-3523-4; International audience; Linear precoding (LP) technique applied to OFDM systems has already proved its ability to significantly increase the system throughput in a powerline communication (PLC) context. In this paper, we propose resource allocation algorithms based on the LP technique to increase the multicast OFDM systems bit rate. The conventional multicast capacity is limited by the user which experiences the worst channel conditions. To increase the multicast bit ...

  13. Capital Discipline and Financial Market Relations in Retail Globalization: Insights from the Case of Tesco plc

    OpenAIRE

    Wood, Steven; Wrigley, N; Coe, NM

    2016-01-01

    This paper provides an in-depth study of leading transnational food retailer Tesco plc to explore how its financial management and relations with the investment community – notably its reputation for capital discipline – underpinned successful expansion. Informed by close dialogue with equity analysts, we investigate how this model deteriorated since the late 2000s with declining returns, leading to high-profile international divestitures. The analysis assesses the drivers of these difficulti...

  14. Business strategy and the environment Tesco Plc's declining financial performance and underlying issues

    OpenAIRE

    Haddock-Millar, Julie; Rigby, Chris

    2015-01-01

    The case presents a teaching tool which requires students to: 1) analyze the financial performance of Tesco Plc over the last four years; 2) compare Tesco’s market position with key competitors; 3) identify and evaluate Tesco’s business strategy; 4) evaluate the causes of Tesco’s decline in performance; 5) develop recommendations to address declining performance; 6) identify and evaluate the Human Resource strategic role in addressing and supporting performance. The case is suitable for a bus...

  15. Experimental Study of 6LoPLC for Home Energy Management Systems

    Directory of Open Access Journals (Sweden)

    Augustine Ikpehai

    2016-12-01

    Full Text Available Ubiquitous connectivity is already transforming residential dwellings into smart homes. As citizens continue to embrace the smart home paradigm, a new generation of low-rate and low-power communication systems is required to leverage the mass market presented by energy management in homes. Although Power Line Communication (PLC technology has evolved in the last decade, the adaptation of PLC for constrained networks is not fully charted. By adapting some features of IEEE 802.15.4 and IPv6 over Low-power Wireless Personal Area Network (6LoWPAN into power lines, this paper demonstrates a low-rate, low-power PLC system over the IPv6 network (referred to as 6LoPLC, for Home Energy Management System (HEMS applications. The overall idea is to provide a framework for assessing various scenarios that cannot be easily investigated with the limited number of evaluation hardware available. In this respect, a network model is developed in NS-3 (Version 21 to measure several important characteristics of the designed system and then validated with experimental results obtained using the Hanadu evaluation kits. Following the good agreement between the two, the NS-3 model is utilised to investigate more complex scenarios and various use-cases, such as the effects of impulsive noise, the number of nodes and packet size on the latency and Bit Error Rate (BER performances. We further demonstrate that for different network and application configurations, optimal data sizes exist. For instance, the results reveal that in order to guarantee 99% system reliability, the HEMS application data must not exceed 64 bytes. Finally, it is shown that with impulsive noise in a HEMS network comprising 50 appliances, provided the size of the payload does not exceed 64 bytes, monitoring and control applications incur a maximum latency of 238.117 ms and 248.959 ms, respectively; both of which are within acceptable limits.

  16. Turnaround and Sustainability in Economic Crisis: The Case of NEXT PLC

    OpenAIRE

    Zhang, Biyan

    2013-01-01

    Purpose- against a background of continued weak economic conditions and with many firms experiencing declining financial performance, this paper presents a synthesis of the business turnaround literature and combines with analysis case –NEXT plc. It purposes to discus the turnaround strategies can keep the declining firm sustainability recovery, during the economic cycle. \\ud \\ud Design/methodology/approach- the turnaround strategy for sustainability recovery are examined by a case study of N...

  17. On Verification of PLC-Programs Written in the LD-Language

    Directory of Open Access Journals (Sweden)

    E. V. Kuzmin

    2012-01-01

    Full Text Available We discuss some questions connected with the construction of a technology of analysing correctness of Programmable Logic Controller programs. We consider an example of modeling and automated verification of PLC-programs written in the Ladder Diagram language (including timed function blocks of the IEC 61131-3 standard. We use the Cadence SMV for symbolic model checking. Program properties are written in the linear-time temporal logic LTL.

  18. PEMBUATAN SISTEM KONTROL MESIN CAULKING ROD GUIDE OTOMATIS MENGGUNAKAN PLC OMRON CPM1A

    Directory of Open Access Journals (Sweden)

    Syahril Ardi

    2015-02-01

    Full Text Available Kenaikan tingkat produksi shock absorber perusahaan manufaktur membuat proses produksi harus berjalan dengan baik . Pipa proses pemotongan pada mendempul panduan mesin batang memiliki beberapa masalah yang harus diatasi . Untuk mengatasi masalah tersebut kemudian melakukan modifikasi mesin batang mendempul yang secara otomatis dapat mengurangi waktu siklus pada proses mendempul batang dari 4,5 detik per potong sehingga tingkat produksi memotong garis pipa dapat ditingkatkan . Sistem kontrol otomatis mendempul mesin batang panduan ini dirancang untuk menggunakan Programmable Logic Controller (PLC

  19. Drosophila fatty acid taste signals through the PLC pathway in sugar-sensing neurons.

    Directory of Open Access Journals (Sweden)

    Pavel Masek

    Full Text Available Taste is the primary sensory system for detecting food quality and palatability. Drosophila detects five distinct taste modalities that include sweet, bitter, salt, water, and the taste of carbonation. Of these, sweet-sensing neurons appear to have utility for the detection of nutritionally rich food while bitter-sensing neurons signal toxicity and confer repulsion. Growing evidence in mammals suggests that taste for fatty acids (FAs signals the presence of dietary lipids and promotes feeding. While flies appear to be attracted to fatty acids, the neural basis for fatty acid detection and attraction are unclear. Here, we demonstrate that a range of FAs are detected by the fly gustatory system and elicit a robust feeding response. Flies lacking olfactory organs respond robustly to FAs, confirming that FA attraction is mediated through the gustatory system. Furthermore, flies detect FAs independent of pH, suggesting the molecular basis for FA taste is not due to acidity. We show that low and medium concentrations of FAs serve as an appetitive signal and they are detected exclusively through the same subset of neurons that sense appetitive sweet substances, including most sugars. In mammals, taste perception of sweet and bitter substances is dependent on phospholipase C (PLC signaling in specialized taste buds. We find that flies mutant for norpA, a Drosophila ortholog of PLC, fail to respond to FAs. Intriguingly, norpA mutants respond normally to other tastants, including sucrose and yeast. The defect of norpA mutants can be rescued by selectively restoring norpA expression in sweet-sensing neurons, corroborating that FAs signal through sweet-sensing neurons, and suggesting PLC signaling in the gustatory system is specifically involved in FA taste. Taken together, these findings reveal that PLC function in Drosophila sweet-sensing neurons is a conserved molecular signaling pathway that confers attraction to fatty acids.

  20. PLC based development of control, monitoring and interlock for 100 kW, 45.6 MHz ICRH system

    International Nuclear Information System (INIS)

    Jadav, Hiralal; Joshi, Rameshkumar; Mali, Aniruddh K.; Kadia; Bhavesh; Parmar; Maganbhai, Kiritkumar; Kulkarni, S.V.

    2015-01-01

    This paper presents details of PLC based system development for 100KW at the rate 45.6 MHz. Presently in ICRH RF DAC (Data acquisition and control) system existing based on real time VME and linux operating system. The ICRH system consists of 1.5 MW RF generator operating at 22- 40MHz which is used for second harmonic heating and pre-ionization experiments on SST-1 Tokamak at 1.5T and 3T magnetic field operation respectively. The task of PLC system in RF ICRH is to control, monitoring and interlocks HVDC power supply signal. Voltage and current signal of 2 kW, 20 kW, tetrode for 100 kW RF tube electrode like Filament, Control grid, Plate, Screen grid, signal monitor and voltage set raised by PLC analog IO module. Acknowledgement of the HVDC supply Filament, Control grid, Plate, Screen grid power supply is monitor and interlocks by PLC Digital IO module to interlocks stop the RF pulse and off HV power supply. The RF pulse(shot) to trigger signal generator (5mw) RF power output feed to LPA then chain of 2 KW, 20 KW, 100 KW at the rate 45.6 MHz. The programming logic controller (PLC) software is written in ladder language for AH500 Delta make using ISP Soft 2.04 and GUI is in the table form to control and monitor the parameters. Communication of PLC to PC by ethernet LAN network. (author)

  1. The effect of a dynamic PCL brace on patellofemoral compartment pressures in PCL-and PCL/PLC-deficient knees.

    Science.gov (United States)

    Welch, Tyler; Keller, Thomas; Maldonado, Ruben; Metzger, Melodie; Mohr, Karen; Kvitne, Ronald

    2017-12-01

    The natural history of posterior cruciate ligament (PCL) deficiency includes the development of arthrosis in the patellofemoral joint (PFJ). The purpose of this biomechanical study was to evaluate the hypothesis that dynamic bracing reduces PFJ pressures in PCL- and combined PCL/posterolateral corner (PLC)-deficient knees. Controlled Laboratory Study. Eight fresh frozen cadaveric knees with intact cruciate and collateral ligaments were included. PFJ pressures and force were measured using a pressure mapping system via a lateral arthrotomy at knee flexion angles of 30°, 60°, 90°, and 120° in intact, PCL-deficient, and PCL/PLC-deficient knees under a combined quadriceps/hamstrings load of 400 N/200 N. Testing was then repeated in PCL- and PCL/PLC-deficient knees after application of a dynamic PCL brace. Application of a dynamic PCL brace led to a reduction in peak PFJ pressures in PCL-deficient knees. In addition, the brace led to a significant reduction in peak pressures in PCL/PLC-deficient knees at 60°, 90°, and 120° of flexion. Application of the dynamic brace also led to a reduction in total PFJ force across all flexion angles for both PCL- and PCL/PLC-deficient knees. Dynamic bracing reduces PFJ pressures in PCL- and combined PCL/PLC-deficient knees, particularly at high degrees of knee flexion.

  2. Evaluation of PLC Channel Capacity and ABER Performances for OFDM-Based Two-Hop Relaying Transmission

    Directory of Open Access Journals (Sweden)

    Sana Ezzine

    2017-01-01

    Full Text Available Powerline network is recognized as a favorable infrastructure for Smart Grid to transmit information in the network thanks to its broad coverage and low cost deployment. The existing works are trying to improve and adapt transmission techniques to reduce Powerline Communication (PLC channel attenuation and exploit the limited bandwidth to support high data rate over long distances. Two-hop relaying BroadBand PLC (BB-PLC system, in which Orthogonal Frequency Division Multiplexing (OFDM is used, is considered in this paper. We derive and compare the PLC channel capacity and the end-to-end Average BER (ABER for OFDM-based direct link (DL BB-PLC system and for OFDM-based two-hop relaying BB-PLC system for Amplify and Forward (AF and Decode and Forward (DF protocols. We analyze the improvements when we consider the direct link in a cooperative communication when the relay node only transmits the correctly decoded signal. Maximum ratio combining is employed at the destination node to detect the transmitted signal. In addition, in this paper, we highlight the impact of the relay location on the channel capacity and ABER for AF and DF transmission protocols. Moreover, an efficient use of the direct link was also investigated in this paper.

  3. On an LAS-integrated soft PLC system based on WorldFIP fieldbus.

    Science.gov (United States)

    Liang, Geng; Li, Zhijun; Li, Wen; Bai, Yan

    2012-01-01

    Communication efficiency is lowered and real-time performance is not good enough in discrete control based on traditional WorldFIP field intelligent nodes in case that the scale of control in field is large. A soft PLC system based on WorldFIP fieldbus was designed and implemented. Link Activity Scheduler (LAS) was integrated into the system and field intelligent I/O modules acted as networked basic nodes. Discrete control logic was implemented with the LAS-integrated soft PLC system. The proposed system was composed of configuration and supervisory sub-systems and running sub-systems. The configuration and supervisory sub-system was implemented with a personal computer or an industrial personal computer; running subsystems were designed and implemented based on embedded hardware and software systems. Communication and schedule in the running subsystem was implemented with an embedded sub-module; discrete control and system self-diagnosis were implemented with another embedded sub-module. Structure of the proposed system was presented. Methodology for the design of the sub-systems was expounded. Experiments were carried out to evaluate the performance of the proposed system both in discrete and process control by investigating the effect of network data transmission delay induced by the soft PLC in WorldFIP network and CPU workload on resulting control performances. The experimental observations indicated that the proposed system is practically applicable. Copyright © 2011 ISA. Published by Elsevier Ltd. All rights reserved.

  4. Modeling of Hydration, Compressive Strength, and Carbonation of Portland-Limestone Cement (PLC Concrete

    Directory of Open Access Journals (Sweden)

    Xiao-Yong Wang

    2017-01-01

    Full Text Available Limestone is widely used in the construction industry to produce Portland limestone cement (PLC concrete. Systematic evaluations of hydration kinetics, compressive strength development, and carbonation resistance are crucial for the rational use of limestone. This study presents a hydration-based model for evaluating the influences of limestone on the strength and carbonation of concrete. First, the hydration model analyzes the dilution effect and the nucleation effect of limestone during the hydration of cement. The degree of cement hydration is calculated by considering concrete mixing proportions, binder properties, and curing conditions. Second, by using the gel–space ratio, the compressive strength of PLC concrete is evaluated. The interactions among water-to-binder ratio, limestone replacement ratio, and strength development are highlighted. Third, the carbonate material contents and porosity are calculated from the hydration model and are used as input parameters for the carbonation model. By considering concrete microstructures and environmental conditions, the carbon dioxide diffusivity and carbonation depth of PLC concrete are evaluated. The proposed model has been determined to be valid for concrete with various water-to-binder ratios, limestone contents, and curing periods.

  5. Praksisnær skoleudvikling og PLC som strategisk udviklingsaktør

    DEFF Research Database (Denmark)

    Christensen, Ole; Bach, Anna

    2017-01-01

    I det følgende belyses, hvorledes PLC kan udvikles som strategisk udviklingsaktør og understøtte praksisnær skoleudvikling. Vi ønsker at belyse hvorledes Bekendtgørelsens overordnede intentioner kan få retning og rammer og dermed medvirke til, at hele det pædagogiske personale indgår i skoleudvik......I det følgende belyses, hvorledes PLC kan udvikles som strategisk udviklingsaktør og understøtte praksisnær skoleudvikling. Vi ønsker at belyse hvorledes Bekendtgørelsens overordnede intentioner kan få retning og rammer og dermed medvirke til, at hele det pædagogiske personale indgår i...... skoleudviklingen. I den forbindelse er det vores erfaring, at PLC kan spille en central rolle i forbindelse med den praksisnære og lokale skoleudvikling. Erfaringerne bygger især på udviklings- og forskningsprojekter fra kommunerne Kolding, København, Roskilde og Tårnby. Der har været tale om praksisnære...

  6. Un texto inédito de Wenceslao Fernández Flórez. "¡S.O.S.! ¡Aquí Europa!"

    Directory of Open Access Journals (Sweden)

    María Teresa BARBADILLO

    2009-11-01

    Full Text Available Publicamos aquí un texto inédito de Wenceslao Fernández Flórez contenido en 23 cuartillas escritas de su puño y letra, que me fueron confiadas generosamente por sus sobrinos Wenceslao y Antonio Fernández Flórez. El manuscrito no lleva fecha alguna, y el sobre que lo contenía sólo reproduce el título, con la indicación «Charla radiofónica». Don Antonio Fernández Flórez tiene idea de que data de 1934 ó 35, posiblemente del mes de octubre. No obstante, ni en la prensa de esos años, ni en los archivos del Servicio de Documentación escrita de Radio Nacional de España —en donde nos atendieron con suma amabilidad— queda constancia de esta intervención de Fernández Flórez a través de las ondas.

  7. Book Review / Reseña:GUBERN, R., MONTERDE, J. E., PÉREZ PERUCHA, J., RIAMBAU, E. y TORREIRO, C., Historia del cine español

    Directory of Open Access Journals (Sweden)

    Jesús F. Pascual Molina

    2009-07-01

    Full Text Available Reseña del libro: GUBERN, R., MONTERDE, J. E., PÉREZ PERUCHA, J., RIAMBAU, E. y TORREIRO, C., Historia del cine español, Madrid, Ediciones Cátedra, 2009. 652 pp. ISBN: 978-84-376-2561-4.

  8. Review of Arciaga, Juárez y Mendoza (Coords. (2013. Introducción a la Psicología Social

    Directory of Open Access Journals (Sweden)

    Ali Lara

    2014-11-01

    Full Text Available Reseña del libro: Salvador Arciaga Bernal, Juana Juárez Romero y Jorge Mendoza Garcia  (coord. (2013. Introducción a la Psicología Social. México: UAM-MAPorrúa. ISBN 978-607-28-0109-7

  9. El oficio de docente en las novelas de Pérez Galdós / The teacher labour in the novels of Pérez Galdós

    Directory of Open Access Journals (Sweden)

    Ana-María Montero_Pedrera

    2017-01-01

    Full Text Available Resumen Este artículo analiza el oficio de docente en las novelas contemporáneas de Pérez Galdós. En ellas describe innumerables temas y personajes, entre ellos los maestros y maestras, con los que ejemplifica diversos tipos humanos con características bien definidas. Se ha usado el método histórico-educativo para el estudio y en los modelos hallados hay docentes bondadosos, con reminiscencias krausistas, como Máximo Manso en El amigo Manso; ramplones y faltos de vocación como José Ido en Tormento. Sublimes maestras como Atenaida, en La razón de la sinrazón; o doña Lupe, avara e impostora, en Fortunata y Jacinta. Pero, hemos hallado valores en el Magisterio; noble profesión, maltratada tradicionalmente por la sociedad y por los poderes públicos. Abstract This article discusses the teaching profession in Pérez Galdós’ contemporary novels. It describes many topics and characters, including teachers, with who exemplifies various human types with defined characteristics. The historicaleducational method is been used for the analysis. In the models found there are caring teachers, with Krausists reminiscences as Máximo Manso in El amigo Manso; Simples and with a lack of vocation as José Ido in Torment. Sublime teachers as Atenaida, in La razón de la sinrazón; or Dona Lupe, greedy and impostor, in Fortunata y Jacinta. But we have in the Magisterium values; noble profession, traditionally mistreated by society and by the government.

  10. Research activities at nuclear research institute in water chemistry and corrosion

    International Nuclear Information System (INIS)

    Kysela, Jan

    2000-01-01

    Research activities at Nuclear Research Institute Rez (NRI) are presented. They are based on former heavy water reactor program and now on pressurized reactors VVER types which are operated on Czech republic. There is LVR-15 research reactor operated in NRI. The reactor and its experimental facilities is utilized for water chemistry and corrosion studies. NRI services for power plants involve water chemistry optimalization, radioactivity build-up, fuel corrosion and structural materials corrosion tests. (author)

  11. Prospective radiological dose assessment. Amersham plc (Amersham site) variation application December 1998

    International Nuclear Information System (INIS)

    Allott, R.

    2001-01-01

    Amersham plc (previously Nycomed-Amersham plc) submitted an application to the Environment Agency in December 1998 for a variation to their radioactive waste discharge authorisations granted under the Radioactive Substances Act 1993. The application requested a reduction in the discharge limits for certain radionuclides and no change for the remaining radionuclides. Amersham plc undertook a further review of their discharge requirements and submitted a new assessment for revised limits in January 2001. This report provides an assessment of the radiological implications of discharges at these revised limits requested by Amersham plc and the limits proposed by the Agency. It has been prepared by the National Compliance Assessment Service at the request of Thames Region to support their determination of the application. Four candidate critical groups were identified who could be exposed to discharges from the Amersham site: 1) Sewage workers at the Maple Lodge sewage works who might be exposed to external radiation from discharges contained within sewage and inadvertently inhale or ingest sewage. 2) Anglers on the Grand Union Canal who eat a small proportion of their annual catch of freshwater fish, who drink water abstracted solely from the River Colne and eat vegetables irrigated by water from the canal. 3) Persons living closest to site who eat locally produced food. 4) Dog walkers living near to site who eat locally produced food. For continuous discharges at the Agency's proposed annual limits, the highest dose of 160 μSv/y is predicted to be received by infants who live closest to the site and eat locally produced food. Therefore, this has been identified as the critical group. Children and adults living at the same location and eating locally produced food receive doses of 140 μSv/y and 130 μSv/y respectively. The critical group dose is less than the source constraint of 300 μSv/y. The dose is dominated by direct radiation from the site (110 μSv/y) and the

  12. The city that makes the Maquila: The case of Ciudad Juárez (México)

    OpenAIRE

    Rodríguez Álvarez, Olga Lucía

    2007-01-01

    La configuración del espacio urbano de las ciudades depende en alto grado de los diversos momentos de las actividades productivas y es a partir de ellos que se dan las transformaciones en el espacio urbano. En el caso de Ciudad Juárez, México la inserción de la industria maquiladora de exportación como la "mano invisible" que llevara el desarrollo y progreso a través de la transición de una economía primaria a una secundaria, le imprimió una nueva dinámica y configuración espacial. A casi tre...

  13. Raising Children in a Violent Context: An intersectionality approach to understanding parents' experiences in Ciudad Juárez.

    Science.gov (United States)

    Grineski, Sara E; Hernández, Alma A; Ramos, Vicky

    2013-01-01

    Children and parents' daily lives are rarely highlighted in coverage of drug wars. Using 16 interviews with parents in the Mexican border city of Juárez in 2010, we examine how drug violence impacts families with a focus on intersections of gender and social class. Related to mobility (the first emergent theme), fathers had increased mobility as compared to mothers, which caused different stresses. Material hardships heightened mothers' isolation within the home, and mothers more often had to enforce children's mobility restrictions, which children resisted. Related to employment (the second emergent theme), fathers took on dangerous jobs to provide for the family while mothers had fewer options for informal employment due to violence. In sum, men and women faced different challenges, which were intensified due to class-based material disadvantages. Conformity with traditional gender expectations for behavior was common for men and women, illustrating the normalization of gender inequality within this context.

  14. Castigo divino, de Sergio Ramírez, novela policial, folletinesca, satírica y autorreflexiva

    Directory of Open Access Journals (Sweden)

    Gisela Kozak Rovero

    2014-06-01

    Full Text Available La historia de Castigo divino, del nicaragüense Sergio Ramírez (1942, podría figurar perfectamente en las páginas de cualquier periódico amarillista. Sexo, dinero, poder, muerte y equívoco son los ingredientes perfectos de un suceso estremecedor capaz de despertar el morbo colectivo: un triple asesinato con estricnina, perpetrado por un joven abogado de veinticinco años en las personas de su propia esposa, una posible amante y el padre de ésta. La novela se construye a modo de expediente del caso, combinando registros diversos y divergentes, propios de la industria cultural y de discursos “no literarios”, como se evidencia sin problemas con un simple repaso de los títulos de las partes y capítulos del texto.

  15. Participación ciudadana en las colonias sin agua potable y alcantarillado de Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    Gustavo Córdova Bojórquez

    2007-01-01

    Full Text Available En este artículo se presenta un análisis de la participación ciudadana en la gestión del agua en 14 colonias que carecen del servicio de agua potable y alcantarillado en Ciudad Juárez, Chihuahua. La metodología consistió en analizar y relacionar las influencias externas e internas de los ciudadanos resultando una participación ciudadana muy baja en la gestión del agua determinada en gran medida por el poco conocimiento sobre el tema, la poca confianza en las instituciones públicas, la mínima disposición de participar en proyectos comunitarios y por la gran influencia que tiene el sistema político en la gestión del servicio.

  16. El primer volumen de Notas de un reporter de Alejandro Pérez Lugín

    Directory of Open Access Journals (Sweden)

    Julia María Labrador Ben

    2006-12-01

    Full Text Available Alejandro María de las Mercedes Pedro Pérez García Lugín nació el 22 de febrero de 1870 en Madrid. Era hijo de Antonio Pérez Serrano, natural de Cabra (Córdoba, y de María  Josefa  del  Carmen  García  Lugín  y  Castro,  natural  de  Santa  María  del  Camino (Santiago de Compostela2. En 1883 se trasladó con su familia a Santiago de Compostela, donde sus padres instalarían una céntrica y lujosa camisería llamada «El Buen Gusto», nombre que se convertiría en el apodo por el que Alejandro era conocido entre sus compañeros de estudios y amigos3. Ingresó en la Universidad de Santiago de Compostela para estudiar la carrera de Derecho y alcanzó la Licenciatura en 1891. Cuando tenía tan solo dieciocho años falleció su madre4. Esa etapa fue decisiva para su posterior actividad tanto  periodística  como  literaria. Todas  sus  vivencias  estudiantiles  constituirán  mucho más tarde la base de su primera novela, La Casa de la Troya (1915, a la que le corres- ponde el mérito de ser la novela española con mayor número de ediciones después de El Quijote y que aún hoy se sigue reeditando.

  17. 70Z/3 Cbl induces PLC gamma 1 activation in T lymphocytes via an alternate Lat- and Slp-76-independent signaling mechanism.

    Science.gov (United States)

    Graham, Laurie J; Verí, Maria-Concetta; DeBell, Karen E; Noviello, Cristiana; Rawat, Rashmi; Jen, Sandy; Bonvini, Ezio; Rellahan, Barbara

    2003-04-24

    The oncoprotein 70Z/3 Cbl signals in an autonomous fashion or through blockade of endogenous c-Cbl, a negative regulator of signaling. The mechanism of 70Z/3 Cbl-induced signaling was investigated by comparing the molecular requirements for 70Z/3 Cbl- and TCR-induced phospholipase C gamma 1 (PLC gamma 1) activation. 70Z/3 Cbl-induced PLC gamma 1 tyrosine phosphorylation required, in addition to the PLC gamma 1 N-terminal SH2 domain, the C-terminal SH2 and SH3 domains that were dispensable for TCR-induced phosphorylation. Deletion of the leucine zipper of 70Z/3 Cbl did not eliminate 70Z/3 Cbl-induced PLC gamma 1 phosphorylation, suggesting that blockage of c-Cbl via dimerization with 70Z/3 Cbl cannot fully explain 70Z/3 Cbl activating characteristics. The complete elimination of PLC gamma 1 phosphorylation required deleting the SH3 domain-binding region of 70Z/3 Cbl, consistent with 70Z/3 Cbl binding the PLC gamma 1 SH3 domain. 70Z/3 Cbl-induced PLC gamma 1 phosphorylation required Zap-70, as for the TCR, and the tyrosine kinase binding domain of 70Z/3 Cbl, which binds Zap-70, but did not require PLC gamma 1 binding to Lat, a crucial interaction in TCR-induced PLC gamma 1 phosphorylation. Furthermore, 70Z/3 Cbl-induced activation of NFAT, a PLC gamma 1/Ca(2+)-dependent transcriptional event, required Zap-70, but was independent of Slp-76, an adapter required for TCR-induced NFAT activation. These results suggest that 70Z/3 Cbl and PLC gamma 1 form a TCR-, Lat- and Slp-76-independent complex that leads to PLC gamma 1 phosphorylation and activation.

  18. Csseverin inhibits apoptosis through mitochondria-mediated pathways triggered by Ca2 + dyshomeostasis in hepatocarcinoma PLC cells.

    Directory of Open Access Journals (Sweden)

    Mengchen Shi

    2017-11-01

    Full Text Available Numerous experimental and epidemiological studies have demonstrated a link between Clonorchis sinensis (C. sinensis infestation and cholangiocarcinoma (CCA as well as hepatocellular carcinoma (HCC. The underlying molecular mechanism involved in the malignancy of CCA and HCC has not yet been addressed. Csseverin, a component of the excretory/secretory products of C. sinensis (CsESPs, was confirmed to cause obvious apoptotic inhibition in the human HCC cell line PLC. However, the antiapoptotic mechanism is unclear. In the present study, we investigated the cellular features of the antiapoptotic mechanism upon transfection of the Csseverin gene.In the present study, we evaluated the effects of Csseverin gene overexpression on the apoptosis of PLC cells using an Annexin PE/7-AAD assay. Western blotting was applied to quantify the activation of caspase-3 and caspase-9, the mitochondrial translocation of Bax and the release of Cyt c upon Csseverin overexpression in PLC cells. Laser scanning confocal microscopy was used to analyze the changes of intracellular calcium. Fluorescence assay and immunofluorescence assays were performed to observe the changes of the mitochondrial permeability transition pore (MPTP.The overexpression of Csseverin in PLC cells showed apoptosis resistance after the induction of apoptosis. Additionally, the activation of caspase-3 and caspase-9 was specifically weakened in Csseverin overexpression PLC cells. The overexpression of Csseverin reduced the increase in intracellular free Ca2+, thereby inhibiting MPTP opening in PLC cells. Moreover, Bax mitochondrial translocation and the subsequent release of Cyt c were downregulated in apoptotic Csseverin overexpression PLC cells.The present findings suggest that Csseverin, a component of CsESPs, confers protection from human HCC cell apoptosis via the inactivation of membranous Ca2+ channels. Csseverin might be involved in the process of HCC through C. sinensis infestation in

  19. High-speed narrowband PLC - High-performance Access Powerline Communication structures in smart grid; High-Speed Narrowband PLC. Leistungsfaehige Access-Powerline-Kommunikationsstrukturen im Smart Grid

    Energy Technology Data Exchange (ETDEWEB)

    Offner, Georg [devolo AG, Aachen (Germany)

    2012-07-01

    The smart grid provides a stable operation of a decentralized power system which is fed more and more by small providers by means of solar technology and wind power technology. Furthermore, commercial and private clients profit from the smart grid, as they may capture information about their current consumption in real time or can obtain these data from the Internet. The author of the contribution under consideration presents new approaches to access powerline communications that enable efficient communication between IPv6 based household meter and network station. The contribution under consideration describes the technologies used as well as practical experiences and initial results from field tests. Here insights from the integration of G3-PLC are in the foreground.

  20. 3D digital image correlation investigation of PLC effect in a new Ni-Co base superalloy

    Science.gov (United States)

    Gao, Y.; Fu, S. H.; Cheng, T.; Huo, X.; Zhang, Q. C.

    2013-06-01

    Repeated plastic instability accompanying serrated yielding in stress-strain curves and localization of deformation is observed during plastic deformation of many metallic alloys when tensile specimens are deformed under certain experimental conditions of temperature, strain rate, and pre-deformation. This phenomenon is referred to as the Portevin- Le Chatelier (PLC) effect. TMW alloy, a newly developed Ni-Co base superalloy for aircraft engine application, also exhibit PLC effect during tensile test at temperatures ranging from 300 ° to 600 °, which are also the temperature range for engine working. In this paper, a 3D digital image correlation (3D DIC) measurement system was established to observe the localization of deformation (PLC band) in a tensile test performed on TMW alloy specimen at temperature of 400 °. The 3D DIC system, with displacement measurement accuracy up to 0.01 pixels and strain measurement accuracy up to 100 μɛ, has a high performance in displacement field calculation with more than 10000 points every second on a 3.1G Hz CPU computer. The test result shows that, the PLC bands are inclined at an angle of about 60° to the tensile axis. Unlike tensile test performed on aluminums alloy, the widths of PLC bands of TMW alloy specimen, ranging from 4 mm to 4.5 mm, are much greater than the specimen thickness (0.25 mm).

  1. Data communication between Panasonic PLC and PC using SerialPort control in C#.NET environment

    Science.gov (United States)

    Gao, Ting; Gan, Xiaochuan; Ma, Liqun

    2015-02-01

    With the gradual promotion of Microsoft.NET platform, C# as an object-oriented programming language based on the platform has been widely used. Therefore, more attention is concentrated on how to achieve the communication between Panasonic PLC and PC efficiently and fast in C#.NET environment. In this paper, a method of using SerialPort control which could be used for achieving communication between PLC and PC is introduced. Meanwhile, the reason of abnormal thread when displayed the receiving data in form is analyzed and the programming method to solve the problem of thread safety is designed. Achieving the communication of Panasonic PLC and PC in C#.NET environment can give full play to the advantages of the .NET framework. It is practical, easy communication, high reliability and can combine with other measurement and calibration procedures effectively and conveniently. Configuration software is expensive and can only communicate with PLC separately, but these shortcomings can be solved in C#.NET environment. A well-designed user interface realized real-time monitoring of PLC parameters and achieved management and control integration. The experiment show that this method of data transfer is accurate and the program' running is stable.

  2. Construction of a multi-vender fieldbus system for PC-based control using soft PLC

    Energy Technology Data Exchange (ETDEWEB)

    Park, J. H.; Park, Y. J.; Choi, J. M.; Park, J. S. [Hankyong National Univ., Ansung (Korea)

    2000-12-01

    The relationship between the IEC 61131-3 programming language and the fieldbus application that became necessary as an outcome of the recent automation technology was described.An educational text for the field users on the integration of the Input/Output (I/O) modules and on the IEC 61131-3 programming language was prepared. An attempt was made to include description of the various kind of the fieldbuses and promote understanding of the CAN and the AS-I bus using a practical approach. The profibus is most widely used in the world, and thus is an important and a standardized tool in the area of the process control. A method of integrating the profibus with the most commonly used I/O modules in the field was suggested. The most essential characteristics of the IEC 61131-3 programming language was also described. A method for the construction of the multi-vender I/O modules by the Soft PLC 4C of the softings was suggested. Various technical steps are necessary for the integration of the I/O modules by the soft PLC. An additional software is needed for the more intelligent devises possessing complex technical functions, such as the control valve, the AC driver among others. The 4C control by the softing which is an important industrial solution for the soft PLC was specifically designed for the profibus. So, an OPC server is needed to exchange between the other fieldbuses while the optimum performance is only achieved by using the profibus card by softing. This implies that the business aspect has played a major role for developing the profibus by softing and the domestic users need to pay careful attention to this point additional software tools, such as the PDM or the comuwinn II, are necessary in the process control area to operate a complex and instruments using the DP/PA segment coupler. 13 refs., 46 figs., 12 tabs. (Author)

  3. Generating Safety-Critical PLC Code From a High-Level Application Software Specification

    Science.gov (United States)

    2008-01-01

    The benefits of automatic-application code generation are widely accepted within the software engineering community. These benefits include raised abstraction level of application programming, shorter product development time, lower maintenance costs, and increased code quality and consistency. Surprisingly, code generation concepts have not yet found wide acceptance and use in the field of programmable logic controller (PLC) software development. Software engineers at Kennedy Space Center recognized the need for PLC code generation while developing the new ground checkout and launch processing system, called the Launch Control System (LCS). Engineers developed a process and a prototype software tool that automatically translates a high-level representation or specification of application software into ladder logic that executes on a PLC. All the computer hardware in the LCS is planned to be commercial off the shelf (COTS), including industrial controllers or PLCs that are connected to the sensors and end items out in the field. Most of the software in LCS is also planned to be COTS, with only small adapter software modules that must be developed in order to interface between the various COTS software products. A domain-specific language (DSL) is a programming language designed to perform tasks and to solve problems in a particular domain, such as ground processing of launch vehicles. The LCS engineers created a DSL for developing test sequences of ground checkout and launch operations of future launch vehicle and spacecraft elements, and they are developing a tabular specification format that uses the DSL keywords and functions familiar to the ground and flight system users. The tabular specification format, or tabular spec, allows most ground and flight system users to document how the application software is intended to function and requires little or no software programming knowledge or experience. A small sample from a prototype tabular spec application is

  4. Melatonin potentiates glycine currents through a PLC/PKC signalling pathway in rat retinal ganglion cells.

    Science.gov (United States)

    Zhao, Wen-Jie; Zhang, Min; Miao, Yanying; Yang, Xiong-Li; Wang, Zhongfeng

    2010-07-15

    In vertebrate retina, melatonin regulates various physiological functions. In this work we investigated the mechanisms underlying melatonin-induced potentiation of glycine currents in rat retinal ganglion cells (RGCs). Immunofluorescence double labelling showed that rat RGCs were solely immunoreactive to melatonin MT(2) receptors. Melatonin potentiated glycine currents of RGCs, which was reversed by the MT(2) receptor antagonist 4-P-PDOT. The melatonin effect was blocked by intracellular dialysis of GDP-beta-S. Either preincubation with pertussis toxin or application of the phosphatidylcholine (PC)-specific phospholipase C (PLC) inhibitor D609, but not the phosphatidylinositol (PI)-PLC inhibitor U73122, blocked the melatonin effect. The protein kinase C (PKC) activator PMA potentiated the glycine currents and in the presence of PMA melatonin failed to cause further potentiation of the currents, whereas application of the PKC inhibitor bisindolylmaleimide IV abolished the melatonin-induced potentiation. The melatonin effect persisted when [Ca(2+)](i) was chelated by BAPTA, and melatonin induced no increase in [Ca(2+)](i). Neither cAMP-PKA nor cGMP-PKG signalling pathways seemed to be involved because 8-Br-cAMP or 8-Br-cGMP failed to cause potentiation of the glycine currents and both the PKA inhibitor H-89 and the PKG inhibitor KT5823 did not block the melatonin-induced potentiation. In consequence, a distinct PC-PLC/PKC signalling pathway, following the activation of G(i/o)-coupled MT(2) receptors, is most likely responsible for the melatonin-induced potentiation of glycine currents of rat RGCs. Furthermore, in rat retinal slices melatonin potentiated light-evoked glycine receptor-mediated inhibitory postsynaptic currents in RGCs. These results suggest that melatonin, being at higher levels at night, may help animals to detect positive or negative contrast in night vision by modulating inhibitory signals largely mediated by glycinergic amacrine cells in the inner

  5. Las culpas del Rey y de su Favorito. El proceso a Alonso Ramírez de Prado (1607-1608

    Directory of Open Access Journals (Sweden)

    Giuseppe MROZEK ELISZEZYNSKI

    2013-01-01

    Full Text Available El enorme poder alcanzado por el letrado Alonso Ramírez de Prado en los primeros ocho años (1598-1606 del reinado de Felipe III fue resultado directodel dominio que su patrón, el duque de Lerma, ejerció sobre la corte y el joven rey. El 26 diciembre de 1606, su repentina detención puso fin a una rutilante carrera política y empezó un proceso, descuidado por mucho tiempo por los historiadores, junto al conde de Villalonga, don Pedro Franqueza. A través del análisis de la documentación oficial relativa a la causa de Ramírez de Prado, el presente trabajo pretende ilustrar las diferentes razones de la acusación y,sobre todo, los argumentos de la defensa, encargada al hijo del acusado, don Lorenzo Ramírez de Prado. El veredicto de culpabilidad emitido al final del proceso parecía anular cualquier argumento de la defensa. Sin embargo, el debate sobre la responsabilidad del soberano con respecto al poder de susfavoritos continuó a lo largo de las décadas siguientes.The huge power achieved by the jurist Alonso Ramírez de Prado in the firsteight years (1598-1606 of the reign of Philip III was a direct result of the supremacy of his patron, the Duke of Lerma, over the whole court and theyoung king. On December 26, 1606, his sudden arrest brought his brilliantcareer in politics to an end and started a trial, overlooked for a long time by historians in favor of the concurrent one against the Earl of Villalonga, PedroFranqueza. Through the analysis of the official documentation about the case of Ramírez de Prado, the article aims to illustrate the many reasons of the prosecution and, above all, the arguments of the defence, entrusted to his son, Lorenzo Ramírez de Prado. The verdict of guilty returned at the end of the process seemed to erase any argument of the defence. However, the debateabout the responsibilities of the sovereign in relation to the power of his favourites was destined to continue in the following decades

  6. Implementation of RS-485 Communication between PLC and PC of Distributed Control System Based on VB

    Science.gov (United States)

    Lian Zhang, Chuan; Da Huang, Zhi; Qing Zhou, Gui; Chong, Kil To

    2015-05-01

    This paper focuses on achieving RS-485 communication between programmable logical controller (PLC) and PC based on visual basic 6.0 (VB6.0) on an experimental automatic production line. Mitsubishi FX2N PLCs and a PC are chosen as slave stations and main station, respectively. Monitoring software is developed using VB6.0 for data input/output, flow control and online parameters setting. As a result, all functions are fulfilled with robust performance. It is concluded from results that one PC can monitor several PLCs using RS-485 communication.

  7. Realization of Intelligent Measurement and Control System for Limb Rehabilitation Based on PLC and Touch Screen

    Science.gov (United States)

    Liu, Xiangquan

    According to the treatment needs of patients with limb movement disorder, on the basis of the limb rehabilitative training prototype, function of measure and control system are analyzed, design of system hardware and software is completed. The touch screen which is adopt as host computer and man-machine interaction window is responsible for sending commands and training information display; The PLC which is adopt as slave computer is responsible for receiving control command from touch screen, collecting the sensor data, regulating torque and speed of motor by analog output according to the different training mode, realizing ultimately active and passive training for limb rehabilitation therapy.

  8. Design and realization of the waster level system based on PLC and configuration technology

    International Nuclear Information System (INIS)

    Hu Kaiming; Ge Yuanxiang; Fu Zhijian

    2012-01-01

    The process control experimental system takes the water level as the controlled object. In this system PLC is adopted as a controller and the electric valve for the actuator. Based on the water level system in the establishment of the mathematical model, the system uses PID algorithm, the PID parameters are tuning, MCGS configuration environment is built and debugs in the environment. Experiments show that the system is running smoothly, the overshoot is 18%, the setting time is about 3 min. The control indicators have reached the engineering requirements and the control effect is good. (authors)

  9. The Interface Between Redundant Processor Modules Of Safety Grade PLC Using Mass Storage DPRAM

    International Nuclear Information System (INIS)

    Hwang, Sung Jae; Song, Seong Hwan; No, Young Hun; Yun, Dong Hwa; Park, Gang Min; Kim, Min Gyu; Choi, Kyung Chul; Lee, Ui Taek

    2010-01-01

    Processor module of safety grade PLC (hereinafter called as POSAFE-Q) developed by POSCO ICT provides high reliability and safety. However, POSAFEQ would have suffered a malfunction when we think taking place of abnormal operation by exceptional environmental. POSAFE-Q would not able to conduct its function normally in such case. To prevent these situations, the necessity of redundant processor module has been raised. Therefore, redundant processor module, NCPU-2Q, has been developed which has not only functions of single processor module with high reliability and safety but also functions of redundant processor

  10. Aplicación de la Tecnología PLC en la provincia del Azuay

    OpenAIRE

    Jara Guapisaca, Claudio Xavier

    2006-01-01

    La Red PLC utiliza infraestructura ya instalada para atender a un mercado masivo, siendo una alternativa eficiente en términos de requerimientos de capital y tiempos de ejecución. La técnica es bastante sencilla de entender; consiste en acondicionar parte de las actuales infraestructuras eléctricas para que puedan transmitir señales regulares de baja frecuencia y otras por encima de la banda de 1 MHz, sin que se vea afectado el rendimiento eléctrico. Las señales de baja frecuencia (50 ó 60...

  11. A Modification of Gamma Surveymeter Dosemeter 3007A for Monitoring Use Ethernet by PLC T100MD Series

    International Nuclear Information System (INIS)

    Ikhsan Shobari; Subchan, M.; Syahrudin Yusuf; Sutomo Budihardjo

    2010-01-01

    It has been modified a gamma surveymeter Dosemeter 3007A. The Surveymeter represents analogous surveymeter, so that an interface for data acquisition is required. Acquisition system from surveymeter is added to the voltage amplifier module from 0 - 200 mV to 0 - 5 V. This voltage value will represent of doses 0 - 5 mR/hour. Hereinafter the analogous signal 0 - 5 V as signal of input to peripheral of PLC T100MD series. Data in the form of processed analogous signal presented at local display of PLC. For long distance monitoring, data have been sent to a computer from PLC by ethernet. After this modification, the surveymeter can be used to monitor from long distance. By using Internet Service Provider, monitoring can be done at any time and any where as long as network internet is available. (author)

  12. The electromagnetic compatibility of the PLC technology; La compatibilite electromagnetique de la technologie CPL. Des donnees sur les lignes electriques

    Energy Technology Data Exchange (ETDEWEB)

    Bermudez, J.-L.; Marthe, E.; Rachidi, F.; Rubinstein, M.; Vukicevic, A.

    2006-07-01

    PLC (Power Line Communications) in Europe or BPL (Broadband over Power Lines) in the US are techniques that allows the utilization of low and middle voltage power lines for the transmission of high frequencies by coupling electrical signals to them. In this way, unshielded power lines may be used for the transmission of numerical information similar to the well known xDSL-techniques using telephone lines. Typically, the frequency range used by PLC is between 9 kHz and 30 MHz. The authors describe the general principles and investigate possible electromagnetic interference with existing radio frequency equipment like xDSL, CATV (Cable Television) and Wireless (GSM, Bluetooth, WiFi). Finally, they present theoretical and experimental results of techniques allowing the reduction of such interference by reducing the emission of electromagnetic signals from PLC systems. The preferred method is based on an active control by injecting an auxiliary signal into the third conductor (ground)

  13. Generic requirements specification for qualifying a commercially available PLC for safety-related applications in nuclear power plants. Final report

    International Nuclear Information System (INIS)

    Ostenso, A.; May, R.

    1996-12-01

    This is a specification for qualifying a commercially available PLC for application to safety systems in nuclear power plants. The specifications are suitable for evaluating a particular PLC product line as a platform for safety-related applications, establishing a suitable qualification test program, and confirming that the manufacturer has a quality assurance program that is adequate for safety-related applications or is sufficiently complete that, with a reasonable set of compensatory actions, it can be brought into conformance. The specification includes requirements for: (1) quality assurance measures applied to the qualification activities, (2) documentation to support the qualification, and (3) documentation to provide the information needed for applying the qualified PLC platform to a specific application. The specifications are designed to encompass a broad range of safety applications; however, qualifying a particular platform for a different range of applications can be accomplished by appropriate adjustments to the requirements

  14. Perancangan Prototype Early Warning System pada Kontrol On/Off Belt Conveyor Menggunakan PLC Siemens S7-300

    Directory of Open Access Journals (Sweden)

    Taufik Taufik

    2016-04-01

    Full Text Available Nowadays, automation system become an important aspect of the manufacturing process because could make integration manufacturing process on it more effective and more efficient. PLC or Programmable Logic Controller is one kind of automation system. Many industries use PLC as automation control device in the manufacturing process to control all kind of process. For example at transportation process of coals in generator industry. Coals could be burned because main elements of coals are carbon, hydrogen, and oxygen. Base on this prototype early warning system design, we get the result if sensor thermocouple detects temperature larger than setpoint temperature (it is 2000C, then PLC will give an order to shut down the output, that is a belt conveyor. The result of this prototype design could use at coals transportation as an early warning system. The design of prototype early warning system could detect and prevent fire because of the consequence of burned coals until spreading of fire could be avoided.

  15. Influencia de aspectos bioéticos en la planificación familiar en Santos Suárez

    Directory of Open Access Journals (Sweden)

    Marianela de la C Prendes Labrada

    1999-01-01

    Full Text Available Se realizó un estudio descriptivo de corte transversal en 151 pacientes de la consulta de Planificación Familiar en el Policlínico Santos Suárez entre abril y junio de 1997, con el objetivo de mostrar cómo influyen algunos aspectos bioéticos en la selección, así como en la continuidad del uso de los métodos anticonceptivos y en la satisfacción de las necesidades del individuo. Se aplicó una encuesta y se siguió a los pacientes durante un año. Los datos se procesaron según el cálculo porcentual. Se concluyó que la adecuada capacitación técnica del equipo multidisciplinario, la selección informada, asesoramiento adecuado y respeto de las creencias individuales, socioculturales y de los principios morales, influyeron en los resultados positivos de la selección y continuidad del uso de los métodos anticonceptivos y en la satisfacción de las necesidades del individuo en la consulta de Planificación Familiar.A descriptive cross-sectional study of 151 patients from the Family Planning Department of the "Santos Suárez" Polyclinic was conducted between April and June, 1997, aimed at showing how some bioethical aspects influence on the selection, and continuity of the use of contraceptive methods, and on the satisfaction of the individual’s needs. A survey was done and patients were followed up for a year. Data were processed by percent calculation. It was concluded that the adequate technical training of the multidisciplinary team, the reported selection, the appropiate counseling, and the respect of the individual and sociocultural beliefs, and of the moral principles influenced on the positive results of the selection and continuity of the utilization of the contraceptive methods as well as on the satisfaction of the patients’ needs at the Family Planning Department.

  16. Pesquisaje de cáncer de mama en la comunidad de Santos Suárez

    Directory of Open Access Journals (Sweden)

    Marianela Prendes Labrada

    1998-04-01

    Full Text Available Se realiza un estudio descriptivo en 3 consultorios del área del Policlínico "Santos Suárez" en el año 1996 con el objetivo de determinar la incidencia de cáncer de mama y la utilización de métodos de detección precoz. Se informa que la muestra estuvo constituida por 600 mujeres mayores de 20 años seleccionadas al azar a las cuales se les hizo el pesquisaje y se les aplicó una encuesta. Se encuentra que la incidencia de cáncer mamario fue del 3 %. El 22,5 % de las mujeres se clasificaron como de alto riesgo de padecer el cáncer y el 83,3 % de los cánceres mamarios se detectaron en mujeres con alto riesgo y más de 50 años. Se señala que el 58,2 % de la muestra no conoce el autoexamen de mama y el 64 % no lo practica. Al 45,1 % de las mujeres nunca se le había realizado el examen clínico de las mamasA descriptive study of 3 physicians'offices from Santos Suárez polyclinic was carried out in 1996 aimed at determining the incidence of breast cancer and the use of early diagnosis methods. It is stressed that 600 randomly chosen women over 20 were included in the sample, who were screened and applied a survey. The breast cancer incidence rate was 3 %. 22.5 % of sampled women was clasified as high breast cancer risk subjects whereas 83.3 % of detected breast cancer was found in high risk women over 50. 58.2 % of them has no idea about the breast self-examination and 64 % does not put it into practice. 45.1 % of women has never been breast-screened before

  17. Process control through the incorporation of PLC networks in service radiation facilities

    International Nuclear Information System (INIS)

    Moehlmann, J.H.F.

    1990-01-01

    In order to ensure the smooth and safe running and operation of an irradiation facility, several regulations must be complied with, most of which are prescribed by the authorities. However, internal working regulations, based on years of practical experience, are of equal importance. The application of computers, micro-processors and PLCs, in combination with semi-conductor electronics, has improved process control considerably. Not only can every step in the process and even each detailed function be controlled, but also the combination of the different functions. By using PLC-systems in combination with computers, important data can be stored, recorded and presented in such a way that the technical staff can be warned in advance of breakdowns or undesirable deviations in the process parameters. Keeping a log of these data will help guarantee the correct functioning of the irradiation facility. It is even possible with these modern PLC techniques to monitor the control-console, so that each operation is recorded and accessible. (author)

  18. Real time control “es-dawet” mixer using dasboard based on PLC and WSN

    Science.gov (United States)

    Siagian, Pandapotan; Hutauruk, Sindak; Kisno

    2017-09-01

    The aim of this study is to monitor and acquire the remote parameters like Speed control a DC Motor, IR Sensor, Temperature of pasteurize mix of ice cream, and send these real values over wireless network. A proposed system is dashboard monitoring system for PLC based system wirelessly using ZigBee protocol. To implement this a ZigBee model is connected to a programmed digital signal controller which would transmit the data to Zigbee coordinator which is connected to a PC through RS232 serial communication. Person can need only to send the reply about the process that is to be carried out and PLC will check the status of the web base sent by person and take the action according to it where wired communication is either more expensive or impossible due to physical conditions. A low cost system for measured the parameters of motor such as IR Sensor, Speed control a DC Motor by PWM and temperature with Zigbee protocol connectivity. A database is built to execute monitoring and to save the motor parameters received by radio frequency (RF) data acquisition system. Experimental results show that the proposed system is less costly, provides higher accuracy as well as safe and gives visual environment.

  19. Design and construction of automatic operating system of double chamber plasma nitriding device PLC based

    International Nuclear Information System (INIS)

    Saminto; Slamet Santosa; Eko Priyono

    2012-01-01

    The automatic operating system of double chamber plasma nitriding device has been done. The system is used for operating double chamber plasma nitriding automatically as according to the standard operating procedure by pressing push button on the human machine interface (HMI). The system consists of hardware and software. The hardware was constructed using main components T100MD1616+ PLC module and supported by temperature signal conditioner module, Wheatstone bridge module, isolated amplifier module and EMS 30A H Bridge motor driver module. A software program that is planted on T100MD1616+ PLC using ladder diagrams and Tbasic program. Test system functions performed by inserting a set values of temperature and pressure by pressing the button on the human machine interface (HMI). The test results show that the temperature control with a set of values 100 °C obtained stable coverage of 98 °C to 102 °C, (Δ ± 2 °C) with a 2% tolerance and the output voltage of the DAC is 2.436 volts to 2.913 volts. The pressure control with a set of values 2.169 x 10 -1 mbar obtained stable coverage of 1.995 x 10 -1 mbar to 2.205 x 10 -1 mbar, (Δ ± 0.105 x 10 -1 mbar) with a 5% tol. (author)

  20. Controlling the Filling and Capping Operation of a Bottling Plant using PLC and SCADA

    Directory of Open Access Journals (Sweden)

    Kunal Chakraborty

    2015-03-01

    Full Text Available This paper presents basic stages of operation of a bottling plant, i.e. the filling and capping process. The main aim of our paper is to control the filling and capping section of a bottling plant simultaneously. At first a set of empty bottle is run by using a conveyer towards filling section, after the operation, the filled bottles are sent towards the capping section. After successful capping operation, the sealed bottles terminate towards exit and a new set of empty bottle arrive, in this way the process continues. This paper includes the method using which, a bunch of bottles can be filled and capped at one instant of time. This method has made the operation more flexible and time saving. The filling and capping operations are controlled using Programmable Logic Controllers (PLC, as the PLC’s are very much user-efficient, cost-effective and easy to control. By using PLC automation the whole process is kept under control. SCADA (Supervisory Control and Data Acquisition is used to monitor the process by means of a display system.

  1. PLC-based search and secure interlock system for the personnel safety in folded tandem ion accelerator

    International Nuclear Information System (INIS)

    Padmakumar, Sapna; Subramanyum, N.B.V.; Bhatt, Jignesh P.; Ware, Shailaja V.; Kansara, M.J.; Gupta, S.K.; Singh, P.

    2006-01-01

    Safety of the personnel is one of the key issues addressed in any accelerator project. The FOTIA facility at BARC is capable of operating under standard operation conditions without any radiation hazard. Even then for a safe and reliable operation of FOTIA a PLC (Programmable logic controller) based interlock system has been implemented. This interlocking system is compact, modular, flexible, robust and easy for troubleshooting. These advantages led to the popularity of PLC rather than using a relay-based system. This paper highlights the salient features of the search and secure interlock for the personal safety of FOTIA. (author)

  2. Model to Counter the Threats in the Data Transmission System PLC-based Technology with the Use of Petri Nets

    Directory of Open Access Journals (Sweden)

    A. A. Balaev

    2010-06-01

    Full Text Available In the article the most important aspects of information security technology Power Line Communica tions, namely the provision of conditions accessibility and integrity, are considered. It is shown that these aspects of the PLC-Technology has some internal “potential” counter, at least, such a widespread threat to both natural disturbances and/or artificial origin. The possibility of such an implementation using the simplified mathematical model of the PLC-based technologies of the theory of Petri nets is presented.

  3. Sequence variation in the alpha-toxin encoding plc gene of Clostridium perfringens strains isolated from diseased and healthy chickens

    DEFF Research Database (Denmark)

    Abildgaard, L; Engberg, RM; Pedersen, Karl

    2009-01-01

    The aim of the present study was to analyse the genetic diversity of the alpha-toxin encoding plc gene and the variation in a-toxin production of Clostridium perfringens type A strains isolated from presumably healthy chickens and chickens suffering from either necrotic enteritis (NE) or cholangio......-hepatitis. The a-toxin encoding plc genes from 60 different pulsed-field gel electrophoresis (PFGE) types (strains) of C perfringens were sequenced and translated in silico to amino acid sequences and the a-toxin production was investigated in batch cultures of 45 of the strains using an enzyme...

  4. First record and description of male Rhopalione sinensis Markham, 1990, from China, with remarks on genus Rhopalione Pérez, 1920 (Crustacea: Isopoda: Bopyridae)

    Science.gov (United States)

    An, Jianmei; Niu, Xiaoqian; Markham, John C.; Jiang, Wei

    2014-05-01

    The bopyrid isopod species Rhopalione sinensis Markham, 1990, is recorded for only the second time, from a new locality in China outside Hong Kong, the type-locality. This is also the first finding of the male R. sinensis, which is herein described. Its host, Arcotheres sinensis (Shen, 1932) is a new record. A review of the four known species of Rhopalione Pérez, 1920, an updated diagnosis of the genus and a key to species are provided.

  5. Algunas novelas de Darío Fernández-Flórez: de Zarabanda (1944 a Alta Costura (1954. Temas escabrosos en tiempos de restricciones moralistas

    Directory of Open Access Journals (Sweden)

    Montejo Gurruchaga, Lucía

    2008-06-01

    Full Text Available Dario Fernández-Flórez begins in 1944 with Zarabanda a narrative style of intellectual eroticism and inmoral atmosphere which attracted no attention. Six years later he published Lola, espejo oscuro the recollections of a high prostitute. The novel was an scandal and an immediate success. Although the topic and its treatment were odd at the time because the strict moral values which mantained Franco´s regime were ignored, the novel was published with no cuts at all. Censorship was deaf to all the voices that warned of its dangers. This had an explanation: Darío Fernández-Flórez held an important post in the Propaganda National Service. After his dismissal censors were less lenient.Darío Fernández-Flórez inicia en 1944 con Zarabanda una narrativa de erotismo intelectualizado y ambiente amoral que no tuvo ningún eco. Seis años después publicará Lola, espejo oscuro, las memorias de una prostituta de alto copete. La novela suscitó un gran escándalo y su éxito fue inmediato. Aunque el tema y su tratamiento eran inusitados en aquellos momentos porque la obra daba al traste con los estrictos valores morales que sustentaban el régimen franquista, la novela fue publicada sin recortes; la censura hizo oídos sordos a todas las voces que alertaban de su peligro. Este hecho tiene una explicación: Darío Fernández-Flórez ocupaba un cargo importante en el Servicio Nacional de Propaganda. Tras su cese, los censores serán menos benevolentes.

  6. 77 FR 37740 - Stagecoach Group plc and Coach USA, Inc., et al.-Acquisition of Control of Assets-American Coach...

    Science.gov (United States)

    2012-06-22

    ... Application. SUMMARY: On May 25, 2012, Stagecoach Group plc (Stagecoach), a noncarrier, and a number of its... Group plc and Coach USA, Inc., et al.--Acquisition of Control of Assets--American Coach Lines of Atlanta...) filed an application under 49 U.S.C. 14303 to acquire control of the assets of ten separate interstate...

  7. 75 FR 61363 - Airworthiness Directives; Rolls-Royce plc RB211-524 Series, -535 Series, RB211 Trent 700 Series...

    Science.gov (United States)

    2010-10-05

    ...-0993; Directorate Identifier 2010-NE-08-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc... Federal holidays. Fax: (202) 493-2251. Contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United... based on those comments. We will post all comments we receive, without change, to http://www.regulations...

  8. 75 FR 33738 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-524 Series and RB211 Trent 500, 700, and 800...

    Science.gov (United States)

    2010-06-15

    ...-0562; Directorate Identifier 2009-NE-29-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR...-2251. Contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone: 011 44 1332 242424... amend this proposed AD based on those comments. We will post all comments we receive, without change, to...

  9. 75 FR 27964 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-22B and RB211-524 Series Turbofan Engines

    Science.gov (United States)

    2010-05-19

    ...-1157; Directorate Identifier 2009-NE-26-AD] RIN 2120-AA64 Airworthiness Directives; Rolls-Royce plc (RR... p.m., Monday through Friday, except Federal holidays. Fax: (202) 493-2251. Contact Rolls-Royce plc... received by the closing date and may amend this proposed AD based on those comments. We will post all...

  10. Upgrade of detectors of neutron instruments at Neutron Physics Laboratory in Rez

    Czech Academy of Sciences Publication Activity Database

    Litvinenko, E. I.; Ryukhtin, Vasyl; Bogdzel, A. A.; Churakov, A. V.; Farkas, G.; Hervoches, Charles; Lukáš, Petr; Pilch, Jan; Šaroun, Jan; Strunz, Pavel; Zhuravlev, V. V.

    2017-01-01

    Roč. 841, JAN (2017), s. 5-11 ISSN 0168-9002 R&D Projects: GA MŠk LG14004; GA MŠk LM2015056; GA ČR GB14-36566G Institutional support: RVO:68378271 ; RVO:61389005 Keywords : neutron scattering * gaseous position-sensitive detector * delay line readout Subject RIV: BM - Solid Matter Physics ; Magnetism; JG - Metallurgy (FZU-D) OBOR OECD: Condensed matter physics (including formerly solid state physics, supercond.); Materials engineering (FZU-D) Impact factor: 1.362, year: 2016

  11. Renzo Ramírez Bacca. Historia Laboral de una hacienda cafetera: La Aurora, 1882-1982

    Directory of Open Access Journals (Sweden)

    Jesús Fernando Barrios Ordóñez

    2011-01-01

    Full Text Available El libro de Renzo Ramírez Bacca, historiador y profesor asociado adscrito al Departamento de Historia de la Universidad Nacional de Colombia, sede Medellín, es el resultado de una investigación profunda y documentada que tiene como propósito analizar los sistemas de organización laboral y las formas de ordenamiento administrativo y productivo en la hacienda cafetera La Aurora, ubicada en el actual municipio de El Líbano, en el departamento del Tolima. Esta hacienda fue una de las mayores del norte del Tolima, en la cual se adoptaron sistemas modernos de producción, relacionados, en un principio, con el sistema de aparcería, categoría de trabajadores permanentes con base en la fuerza de trabajo familiar, bajo la figura de arrendatarios, tabloneros, contratistas, partijeros y agregados. Posteriormente, la tecnificación cafetera se sustituye por la administración directa, que utiliza fuerza de trabajo asalariada temporal, modificando las relaciones laborales de tipo familiar que prevalecían en la hacienda.

  12. Characterization of the Water Quality Status on a Stretch of River Lérez around a Small Hydroelectric Power Station

    Directory of Open Access Journals (Sweden)

    Enrique Valero

    2012-10-01

    Full Text Available The renewable energy emerged as a solution to the environmental problems caused by the conventional sources of energy. Small hydropower (SHP is claimed to cause negligible effects on the ecosystem, although some environmental values are threatened and maintenance of an adequate water quality should be ensured. This work provides a characterization of the water quality status in a river stretch around a SHP plant on river Lérez, northwest Spain, for four years after its construction. The ecological and chemical status of the water as well as the ecological quality of the riparian habitat, were used as measures of quality. Data were compared with the water quality requirements. The variations in the quality parameters were analyzed over time and over the river sections with respect to the SHP plant elements. Two years after construction, the temperature and dissolved oxygen values achieved conditions for salmonid water and close to the reference condition, while pH values were low. The Iberian Biological Monitoring Working Party (IBMWP index showed a positive trend from two years after the construction and stabilized at “unpolluted or not considerably altered water”. Quality parameters did not present significant differences between sampling points. The SHP plant construction momentarily altered the quality characteristics of the water.

  13. differentiation in agritourism ventures of a Group of Rural Change (INTA in Coronel Suárez (Buenos Aires

    Directory of Open Access Journals (Sweden)

    Marina Cordisco

    2013-12-01

    Full Text Available From the converged concepts identity, culture, heritage and territory, is analyzed the possibility of formulating and implementing a strategy of differentiation for the agritourism activity developed by farms of group Cortaderas II (Cambio Rural, INTA, in Coronel Suárez (province of Buenos Aires. With this aim was made a diagnostic through direct interviews and observations of the farms involved. Emphasizing own aspects of its rural environment, was tried to identify cultural values and products with territorial anchorage that they impose a distinctive stamp to the tourist service that they offer. In addition, was investigated in what measure the members are prepared to manage the business, recognizing in them managerial competitions and enterprising characteristics. Finally, it is thought over brings over of the degree of maturity reached, typifying the individual enterprise culture and according to the group work, of way of evaluating if the putting in value of its resources evolves from a " domestic character " up to coming to a " commercial formal character ". It is observed the construction of a socio- cultural-economic identity that makes viable a competitive differential strategy with anchorage in the territory, as well as conditions for the development of the most formalized tourist activity based on the quality management

  14. Francisco Suárez en la vida de su tiempo y en la del nuestro. Editorial

    Directory of Open Access Journals (Sweden)

    Juana María Gil Ruiz

    2017-09-01

    Full Text Available Con la aparición de este número dedicado —como no puede ser de otro modo— a Francisco Suárez, en la vida de su tiempo y en la del nuestro, con motivo del cuarto centenario de su fallecimiento, ACFS inaugura una nueva etapa —la tercera— que pretende, además de aprovechar este homenaje, afrontar los nuevos retos planteados por la sociedad-economía del conocimiento y sus variados indicadores —formales— de medición de calidad. Es cierto que lo que marca la calidad, al menos la científica, debería sobrepasar cualquier requisito formal, pero más allá de lo que siempre debió y debe ser lo importante, el fondo, las revistas jurídicas han tenido que reinventarse para cumplir con los requerimientos de indexación exigidos por las reconocidas Bases de Datos.

  15. Bolívar, Juárez y Guevara: apuntes sobre socialización e identidad

    Directory of Open Access Journals (Sweden)

    Pedro António Da Silva-Abrantes

    2011-01-01

    Full Text Available A través de un análisis de las biografías de Bolívar, Juárez y Guevara, se discute la compleja relación entre socialización, identidad y cambio social, en los tiempos modernos. Tras un debate inicial sobre los usos y limitaciones del método biográfico, se busca comprender la vida de los tres personajes históricos, utilizando y buscando explorar algunas teorías sociológicas recientes. Se concluye que, en los tres casos, la integración desde temprana edad a distintos entornos sociales y, en particular, a procesos educativos múltiples resultantes de distintos movimientos político-pedagógicos, ocurrencias biográficas imprevistas e incluso a partir de cierta edad, de un trabajo consciente de los actores sobre sí mismos, permitió la formación de un habitus de fusión. Se argumenta que esta identidad peculiar personificó (y promovió la unificación de fuerzas sociales en conflicto.

  16. Coverage of violence in risk areas: case of the Ciudad Juárez´Journalist Association

    Directory of Open Access Journals (Sweden)

    José Luis González-Esteban

    2016-11-01

    Full Text Available This research analyzes the situation of journalism in a high risk area, Ciudad Juarez, Mexico. The analysis is based on the knowledge and analysis of the training activity, violence and corruption denounced by Juarez Journalists Association, founded and run by women journalists. A meeting with journalists of the association and in-depth interviews are the main methodological tools to understand the meaning and value of this group of juarenses journalists. In the same way this article analyzes, through a quantitative methodology, the strategy of activism and the international projection of the association through their social networks. In addition, research is completed with a content analysis about the prevalence and significance of the ‘red note’ in El Diario de Juárez, the main newspaper in this border area, which even has a delegation in the US city of El Paso. Coverage of violence in high risk areas gives a special value to journalism in newspapers like the aforementioned and corporate work of this group of juarenses journalists.

  17. José Gestoso y Pérez. Teoría y Praxis de la Conservación

    Directory of Open Access Journals (Sweden)

    Mª Dolores Ruiz de Lacanal Ruiz-Mateos

    2013-12-01

    Full Text Available El objetivo de este artículo es hacer una reflexión sobre las aportaciones que José Gestoso y Pérez (1852-1917 realiza a la teoría y la praxis de la conservación. Persona de gran prestigio y mérito, desarrolló su labor profesional en Sevilla a mediados del siglo XIX y principios del siglo XX y ha sido objeto de numerosas investigaciones. Tras la lectura de los estudios, que le resaltan como un referente claro de la cultura sevillana en sus múltiples manifestaciones, (Historia y crítica del Arte, Arqueología, Archivística, etc., este artículo concentra la atención en sus propios textos, para descubrir que constituyen un conjunto coherente y estructurado de conocimientos teóricos y prácticos, aportan unos objetivos definidos y una metodología con recursos y estrategias, que son claros antecedentes de nuestros actuales “planes” de conservación.

  18. Naturaleza metodológica y actualidad de las «Disputaciones metafísicas» de Francisco Suárez

    Directory of Open Access Journals (Sweden)

    Martin GRABMANN

    2009-09-01

    Full Text Available RESUMEN: Las primera de las conmemoraciones en torno al pensamiento del teólogo y filósofo español Francisco Suárez (1548-1617, que después serán repetidas de forma regular, se produjo en el ámbito académico occidental entorno a la celebración del tercer centenario de su muerte. La universidad de Munich rindió tributo con la publicación del volumen colectivo titulado P. Franz Suarez, S. I. De entre aquellas páginas hemos querido recuperar y adaptar a la lengua castellana el estudio del prestigioso medievalista Martin Grabmann. La referencia a éste entre los especialistas en el pensamiento suareciano es un lugar común a la hora de precisar el carácter sintético y ecléctico de la obra metafísica de Suárez, así como para ilustrar la tesis de la penetración de sus ideas en el ámbito protestante. Es nuestra pretensión que la traducción que aquí presentamos auxilie tanto al historiador, a modo de recordatorio de un valor que generalmente no encuentra asiento en nuestros escritos ni en nuestras aulas, como al especialista, en la justa ponderación de sus rasgos y en especial, de su influencia.ABSTRACT: The first of the conmemorations about the thinking of the spanish theologian and philosopher Francisco Suárez (1548-1617, who later will be repeated of regular, was sucessed in the academic western area into around the celebration of the third centenary of his disappearance. The University of Munich, had shown tribute, printing the collective book called P. Franz Suárez, S. I. The reference to this study between the learners of Suárez is a common place at the moment of specifying the synthetic and eclectic character, of the Suárez’ metaphysical work, as well as reinforcement to the thesis of his fret in the Protestant area of the ideas. It is our pretension that the translation that we present helps so much the historian, as followup of a value that generally finds seat neither in our writings or in our lectures rooms, and

  19. Fuel Behaviour Simulations in Fumex III CRP at NRI

    International Nuclear Information System (INIS)

    Valach, M.; Klouzal, J.; Dostal, M.; Zymak, J.

    2013-01-01

    NRI Rez plc took part in the previous coordinated research projects focused on fuel behaviour modelling held by the IAEA - FUMEX-I and FUMEX-II. These were very helpful for the development and validation of various codes used in the Nuclear Research Institute Rez (NRI) for the evaluation of the fuel rod thermomechanical behaviour. Based on the considerations of our needs related to the modeling for Czech NPPs we have performed basic parametric calculations of two LOCA cases (IFA-650.1 and IFA-650.2) and detailed evaluation WWER related cases Kola MIR ramp rods. The AREVA ''Idealized case'' and 16x16 LTA cases were also calculated because of the high burnup reached. Report summarises simulated cases in the frame of FUMEX III Project at the NRI Rez plc. (author)

  20. The Cish SH2 domain is essential for PLC-γ1 regulation in TCR stimulated CD8+ T cells.

    Science.gov (United States)

    Guittard, Geoffrey; Dios-Esponera, Ana; Palmer, Douglas C; Akpan, Itoro; Barr, Valarie A; Manna, Asit; Restifo, Nicholas P; Samelson, Lawrence E

    2018-03-28

    Cish, participates within a multi-molecular E3 ubiquitin ligase complex, which ubiquitinates target proteins. It has an inhibitory effect on T cell activation mediated by PLC-γ1 regulation, and it functions as a potent checkpoint in CD8 + T cell tumor immunotherapy. To study the structural and functional relationships between Cish and PLC-γ1 during CD8 + T cell activation, we tested mutants of the Cish-SH2 (R107K) and D/BC (L222Q, C226Q) domains. We confirmed that Cish-SH2-specific binding was essential for PLC-γ1 ubiquitination and degradation. This domain was essential for the Cish-mediated inhibition of Ca 2+ release upon TCR stimulation. No effect on inhibition of cytokine release was observed with SH2 or D/BC mutants, although the absence of Cish led to an increased release of IFN-γ and TNF-α. Using imaging we showed that Cish was expressed mostly in the cytoplasm and we did not see any Cish clustering at the plasma membrane upon stimulation. We conclude that the Cish-SH2 domain is essential for PLC-γ1 regulation in TCR-stimulated CD8 + T cells.

  1. 75 FR 27973 - Airworthiness Directives; Rolls-Royce plc RB211-524C2 Series Turbofan Engines

    Science.gov (United States)

    2010-05-19

    ... RB211-524C2 Series Turbofan Engines AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice... Rolls-Royce plc (RR) model RB211-524C2-19 and RB211-524C2-B-19 turbofan engines. These engines are...

  2. Design and application of the high-voltage DC power-supply control system based on PLC

    International Nuclear Information System (INIS)

    Huang Yiyun; Zheng Guanghua; Wu Junshuan; Yang Chunsheng; Hu Huaichuan

    2002-03-01

    The design and application of A kind of high-voltage DC power-supply control system based on PLC is referred, in addition, KingView is used to monitor the system in real time and manage the man-machine conversation ideally

  3. 78 FR 23316 - The Royal Bank of Scotland plc, et al.; Notice of Application and Temporary Order

    Science.gov (United States)

    2013-04-18

    ... plc, et al.; Notice of Application and Temporary Order April 12, 2013. AGENCY: Securities and Exchange Commission (``Commission''). ACTION: Temporary order and notice of application for a permanent order under... application for a permanent order. Applicants have also applied for a permanent order. APPLICANTS: The Royal...

  4. 75 FR 58290 - Airworthiness Directives; Rolls-Royce plc RB211 Trent 700 and Trent 800 Series Turbofan Engines

    Science.gov (United States)

    2010-09-24

    ... Airworthiness Directives; Rolls-Royce plc RB211 Trent 700 and Trent 800 Series Turbofan Engines AGENCY: Federal... or increase the scope of the AD. Costs of Compliance Based on the service information, we estimate.... Required parts would cost about $15,000 per product. Based on these figures, we estimate the cost of the AD...

  5. 75 FR 50877 - Airworthiness Directives; Rolls-Royce plc RB211-524C2 Series Turbofan Engines

    Science.gov (United States)

    2010-08-18

    ... Airworthiness Directives; Rolls-Royce plc RB211-524C2 Series Turbofan Engines AGENCY: Federal Aviation... require adopting the AD as proposed. Costs of Compliance Based on the service information, we estimate.... Required parts will cost about $25,000 per product. Based on these figures, we estimate the cost of the AD...

  6. 75 FR 28655 - Rexam Closure Systems, Inc. a Subsidiary of Rexam PLC Including On-Site Leased Workers From...

    Science.gov (United States)

    2010-05-21

    ... Hamlet, NC; Amended Certification Regarding Eligibility To Apply for Worker Adjustment Assistance In..., applicable to the workers of Rexam Closure Systems, Inc., a subsidiary of Rexam PLC, Hamlet, North Carolina... paid through Owens Illinois Manufacturing, Hamlet, North Carolina, who became totally or partially...

  7. MHC class I signaling in T cells leads to tyrosine kinase activity and PLC-gamma 1 phosphorylation

    DEFF Research Database (Denmark)

    Skov, S; Odum, Niels; Claesson, M H

    1995-01-01

    phosphorylation and the subsequent calcium response. The early tyrosine kinase activity was found to be dependent on expression of the TCR/CD3 complex and the CD45 molecule on the surface of the T cells. Furthermore, MHC-I cross-linking was shown to tyrosine phosphorylate PLC-gamma 1 (phospholipase C-gamma 1...

  8. INVESTIGACIONES ARQUEOLÓGICAS EN EL FORTÍN PESCADO, PARTIDO DE BENITO JUÁREZ, PROVINCIA DE BUENOS AIRES / Archaelogical research at Fortin Pescado, Benito Juárez county, Buenos Aires province

    Directory of Open Access Journals (Sweden)

    Vanesa Natalia Bagaloni

    2015-12-01

    Full Text Available En este trabajo se presentan los primeros resultados del estudio de los materiales recuperados en la localidad arqueológica Fortín Pescado, ubicada sobre la margen izquierda del arroyo Pescado Castigado, en el partido de Benito Juárez (provincia de Buenos Aires. Esta localidad se compone de dos sitios arqueológicos (Fortín Pescado 1 y Fortín Pescado 2 donde se efectuaron excavaciones y recolecciones en superficie y en el perfil de barrancas aledañas. El conjunto arqueológico de ambos sitios incluye restos faunísticos (mayormente animales domésticos, materiales vítreos (botellas cuadradas y cilíndricas, frascos, tarros y damajuanas, fragmentos de gres (botellas de ginebra y/o agua mineral, lozas (tazas y bowls ingleses, metales (clavos, botón, cuchilla y arma, ladrillos y un fragmento de bola de boleadora. Según diversos documentos escritos procedentes del Servicio Histórico del Ejército, del Archivo General de la Nación y del departamento de Geodesia, este fortín se instaló en 1858 y funcionó por lo menos hasta fines de 1863, cuando pasó a ser usado como posta militar hasta el fin de la década. A partir de las intervenciones arqueológicas y el relevamiento de las fuentes escritas se pudieron determinar áreas de actividades específicas (vivienda, descarte pautado y no pautado, corral dentro de esta localidad.  AbstractIn this paper the first results of the materials recovered at the Fortin Pescado archaeological locality are presented. This locality is situated on the left bank of Pescado Castigado stream (Benito Juárez County, Buenos Aires Province. It is composed by two sites (Fortin Pescado 1 and Fortin Pescado 2 where excavations and surface surveys were developed. Surface surveys were also conducted on the profiles of the surrounding canyons. The archaeological assemblages of both sites include faunal remains (mostly of domestic fauna/animals, glassy materials (square and cylindrical bottles, flasks, jars and jugs

  9. Effects of 5-fluorouracil on biological characteristics and drug resistance mechanisms of liver cancer cell line PLC/RAF/5

    Directory of Open Access Journals (Sweden)

    CHENG Kangwen

    2015-09-01

    Full Text Available ObjectiveTo study the changes in biological characteristics of a liver cancer cell line PLC/RAF/5 after repeated exposure to a chemotherapy drug, 5-fluorouraci (5-FU, and to investigate the relationship between drug-resistant liver cancer cells and liver cancer stem cells. MethodsA low concentration of 5-FU (1 μg/ml was used to treat the human liver cancer cell line PLC/RAF/5 repeatedly to establish the PLC/RAF/5/5-FU cell line. Morphological differences between the two types of cells were observed. The inhibitory effects of different concentrations of 5-FU (0, 0.25, 0.5, 1, 1.5, and 2 μg/ml on the proliferation of the two types of cells were determined using the CCK-8 assay. Apoptosis of the two types of cells after exposure to different concentrations of 5-FU (0.5, 1, and 2 μg/ml for 48 h was analyzed using flow cytometry. The proportions of side population cells in both types of cells were measured using flow cytometry. The colony-forming ability was compared between the two types of cells by the plate colony-forming assay. The expression of Bax, Bcl-2, ABCG2, and FoxM1 proteins in both types of cells was examined by Western blot. Between-group comparison was performed by t test. ResultsThe PLC/RAF/5/5-FU cell line was successfully established using the chemotherapy drug 5-FU. Compared with the PLC/RAF/5 cells, the PLC/RAF/5/5-FU cells had a larger volume, fewer protrusions, a changed shape of a long shuttle, and enhanced refractivity. Moreover, compared with the parent cells, the PLC/RAF/5/5-FU cells had a significantly lower sensitivity to the inhibitory effect of 5-FU on proliferation, a significantly lower proportion of cells at the G0/G1 phase of the cell cycle, significantly higher proportions of cells at the S and G2/M phases, significantly higher resistance to apoptosis, a significantly higher proportion of side population cells, and significantly enhanced proliferation (P<0.05. According to the results of Western blot assay, the

  10. Decommissioning of the gaseous diffusion plant at BNF plc Capenhurst in the UK

    International Nuclear Information System (INIS)

    Clements, D.W.; Cross, J.R.

    1993-01-01

    Since 1982, a gaseous diffusion plant located at the British Nuclear Fuels plc (BNFL) site at Capenhurst in the United Kingdom, has been undergoing decontamination, decommissioning, and dismantling. By March 1994, the decontamination and decommissioning activities will be complete with 99% of the materials used to construct the plant recycled to the environment as clean material. This paper describes the history of the decontamination, decommissioning, dismantling, and disposal program. Reference is made to the scale of the project and to the special techniques developed, particularly in the areas of size reduction, decontamination, and protection of personnel and the environment. The quantities of material involved that require decontamination and release levels for recycling materials in the U.K. metals market are discussed

  11. On the determination of the colour term in the P-L-C relation for cepheids

    International Nuclear Information System (INIS)

    Feast, M.W.; Balona, L.A.

    1980-01-01

    Recent speculations that the coefficient of the colour term in the P-L-C relation for cepheids may be considerably different from 2.7 are inconsistent with existing data on LMC cepheids. The colour coefficient recently derived is not significantly affected by taking into account an absorption induced correlation between the errors in 0 > and ( 0 > - 0 >). The computer simulation which shows the bias introduced in the colour coefficient when this is derived by an inappropriate method (simple least squares) is consistent with theory and in accord with actual results in the LMC. This gives added confidence in the unbiased nature of the results derived by a maximum likelihood method which takes into account errors in each variable. (author)

  12. Design of Measurement and Control System of Composite Fast Transfer Switch Based on PLC

    Directory of Open Access Journals (Sweden)

    ZHANG Hong-yi

    2017-06-01

    Full Text Available The fast transfer switch gets more extensive application in the power supply system along with the raising of power supply requirement for continuity and reliability in the sensitivity loads such as in airport,military place,hospital and large scale industrial production line. Therefore it is important that how to make fast transfer switch run safely and reliably. The paper expatiated the structure and principle of a fast transfer switch based on mechanical and electronic compound technology,and,according to the basic requirement and the characteristic of the fast transfer switch,a PLC mastered measuring and controlling system has been designed to raise the operation reliability of the fast transfer switch.

  13. Design of Control System for Flexible Packaging Bags Palletizing Production Line Based on PLC

    Science.gov (United States)

    Zheng, Huiping; Chen, Lin; Zhao, Xiaoming; Liu, Zhanyang

    Flexible packaging bags palletizing production line is to put the bags in the required area according to particular order and size, in order to finish handling, storage, loading and unloading, transportation and other logistics work of goods. Flexible packaging bags palletizing line is composed of turning bags mechanism, shaping mechanism, indexing mechanism, marshalling mechanism, pushing bags mechanism, pressing bags mechanism, laminating mechanism, elevator, tray warehouse, tray conveyor and loaded tray conveyor. Whether the whole production line can smoothly run depends on each of the above equipment and precision control among them. In this paper the technological process and the control logic of flexible packaging bags palletizing production line is introduced. Palletizing process of the production line realized automation by means of a control system based on programmable logic controller (PLC). It has the advantages of simple structure, reliable and easy maintenance etc.

  14. The PLC-based Industrial Temperature Control System: Design and Implementation

    Directory of Open Access Journals (Sweden)

    Wei Fanjie

    2017-01-01

    Full Text Available Targeting at the problem of slow response and low accuracy of the automatic temperature control system for material processing and boiler heating, a new design method is proposed to work with the PLC-based temperature control system, where the box temperature control may be achieved through the fan and the heating plate. The hardware design and software design of the system are analyzed in detail. In this paper, a combination of the traditional PID control and the more popular fuzzy control is taken as the control program to achieve the overall design of the control algorithm. Followed by the simulation in the MATLAB software, the designed system is highlighted by its the characteristics of impressive stability, precision and robustness.

  15. A Component-Based Modeling and Validation Method for PLC Systems

    Directory of Open Access Journals (Sweden)

    Rui Wang

    2014-05-01

    Full Text Available Programmable logic controllers (PLCs are complex embedded systems that are widely used in industry. This paper presents a component-based modeling and validation method for PLC systems using the behavior-interaction-priority (BIP framework. We designed a general system architecture and a component library for a type of device control system. The control software and hardware of the environment were all modeled as BIP components. System requirements were formalized as monitors. Simulation was carried out to validate the system model. A realistic example from industry of the gates control system was employed to illustrate our strategies. We found a couple of design errors during the simulation, which helped us to improve the dependability of the original systems. The results of experiment demonstrated the effectiveness of our approach.

  16. Fault tree synthesis for software design analysis of PLC based safety-critical systems

    International Nuclear Information System (INIS)

    Koo, S. R.; Cho, C. H.; Seong, P. H.

    2006-01-01

    As a software verification and validation should be performed for the development of PLC based safety-critical systems, a software safety analysis is also considered in line with entire software life cycle. In this paper, we propose a technique of software safety analysis in the design phase. Among various software hazard analysis techniques, fault tree analysis is most widely used for the safety analysis of nuclear power plant systems. Fault tree analysis also has the most intuitive notation and makes both qualitative and quantitative analyses possible. To analyze the design phase more effectively, we propose a technique of fault tree synthesis, along with a universal fault tree template for the architecture modules of nuclear software. Consequently, we can analyze the safety of software on the basis of fault tree synthesis. (authors)

  17. STS-55 MS1/PLC Ross monitors Payload Specialist Walter's Anthrorack activity

    Science.gov (United States)

    1993-01-01

    STS-55 German Payload Specialist 1 Ulrich Walter breathes into Rack 9 Anthrorack (AR) (Human Physiology Laboratory) device for Pulmonary Perfusion and Ventilation During Rest and Exercise experiment while working inside the Spacelab Deutsche 2 (SL-D2) science module aboard the Earth-orbiting Columbia, Orbiter Vehicle (OV) 102. Seated on the bicycle ergometer, Walter utilizes the respiratory monitoring system, part of a broad battery of experiments designed to investigate human physiology under microgravity conditions. In the background, Mission Specialist 1 (MS1) and Payload Commander (PLC) Jerry L. Ross monitors Walter's activity. Walter represents the German Aerospace Research Establishment (DLR) on the 10-day SL-D2 mission. Visible on the aft end cone are a fire extinguisher and the Crew Telesupport Experiment (CTE) Macintosh portable computer mounted on an adjustable work platform.

  18. Comparative diagnostic efficacy of recombinant LLO and PI-PLC-based ELISAs for detection of listeriosis in animals.

    Science.gov (United States)

    Suryawanshi, Rahul D; Malik, Satya Veer Singh; Jayarao, Bhushan; Chaudhari, Sandeep P; Savage, Emily; Vergis, Jess; Kurkure, Nitin V; Barbuddhe, Sukhadeo B; Rawool, Deepak B

    2017-06-01

    The present study for the first time evaluates the serodiagnostic efficacy of two recombinant antigens namely, listeriolysin O (rLLO) and phosphatidyl-inositol phospholipase C (rPI-PLC). Indirect ELISA with the above recombinant antigens was used on samples collected from bovines (n=106), goats (n=138) and pigs (n=92) having either a history of abortion, emaciation and/or apparently healthy animals. Isolation of Listeria was attempted from the blood samples using USDA-FSIS method. On screening of test sera by rLLO-based ELISA, antibodies against anti-listeriolysin O (ALLO) were observed in goats (22.46%), bovines (15.10%) and pigs (16.31%). As advocated, after adsorption of positive serum samples with streptolysin O (SLO), the seropositivity for ALLO was marginally reduced (p>0.05) in goats (21.73%) and bovines (10.38%), whereas, in pigs the reduction (5.43%) was significant (pPLC-based ELISA revealed higher non-specific seropositivity for antilisterial antibodies in goats (45.65%), bovines (31.13%) and pigs (8.69%). Further, on comparing the seropositivity with isolation rate, of the 16 animals that were culturally-positive for L. monocytogenes, 15 showed ALLO positivity in unadsorbed as well as SLO-adsorbed sera by rLLO-based ELISA, however, rPI-PLC-based ELISA could detect seropositivity in only 5 animals. Moreover, rPI-PLC-based ELISA also showed seropositivity in those animals (7/30) that were culturally positive for other Listeria spp. In conclusion, rLLO can serve as a better antigen than rPI-PLC in ELISA for the serodiagnosis of listeriosis in animals; however, prior adsorption of test sera with SLO is required to avoid false positive results. Copyright © 2017 Elsevier B.V. All rights reserved.

  19. Pancreatic acini possess endothelin receptors whose internalization is regulated by PLC-activating agents.

    Science.gov (United States)

    Hildebrand, P; Mrozinski, J E; Mantey, S A; Patto, R J; Jensen, R T

    1993-05-01

    Endothelin-1 (ET-1) and ET-3 mRNA have been found in the pancreas. We investigated the ability of ET-1, ET-2, and ET-3 to interact with and alter dispersed rat pancreatic acinar cell function. Radiolabeled ETs bound in a time- and temperature-dependent fashion, which was specific and saturable. Analysis demonstrated two classes of receptors, one class (ETA receptor) had a high affinity for ET-1 but a low affinity for ET-3, and the other class (ETB receptor) had equally high affinities for ET-1 and ET-3. No specific receptor for ET-2 was identified. Pancreatic secretagogues that activate phospholipase C (PLC) inhibited binding of 125I-labeled ET-1 (125I-ET-1) or 125I-ET-3, whereas agents that act through adenosine 3',5'-cyclic monophosphate (cAMP) did not. A23187 had no effect on 125I-ET-1 or 125I-ET-3 binding, whereas the phorbol ester 12-O-tetradecanoylphorbol 13-acetate reduced binding. The effect of cholecystokinin octapeptide (CCK-8) was mediated through its own receptor. Stripping of surface bound ligand studies demonstrated that both 125I-labeled ET-1 and 125I-labeled ET-3 were rapidly internalized. CCK-8 decreased the internalization but did not change the amount of surface bound ligand. Endothelins neither stimulate nor alter changes in enzyme secretion, intracellular calcium, cAMP, or [3H]inositol trisphosphate (IP3). This study demonstrates the presence of ETA and ETB receptors on rat pancreatic acini; occupation of both receptors resulted in rapid internalization, which is regulated by PLC-activating secretagogues. Occupation of either ET receptor did not alter intracellular calcium, cAMP, IP3, or stimulate amylase release.

  20. Remediation of old ecological burdens in UJV Rez, a. s. - alpha hall

    International Nuclear Information System (INIS)

    Posvar, R.; Holubova, D.; Svoboda, K.

    2018-01-01

    Two research reactors, hot and semi-hot chambers, laboratories, radioactive waste disposal facilities and many other technologies are in operation at the Nuclear Power Plant site. As a result of these activities a significant amount of radioactive wastes, contaminated and irradiated materials, equipment and construction structures for disposal and disposal were created in the Nuclear Research Institute. These old radioactive loads can be characterized as ecological liabilities incurred prior to the privatization of the Nuclear Power Plant. The implementation of the rehabilitation works of the Nuclear Power Plant continued and continues to be successful. The results of regular monitoring confirm that there is no release of radioactive substances into the environment. This work focuses on the elimination of the alpha hall workplace in facility 250 - Radiochemistry. The Alpha Hall has been used to research and develop chemical separations and analyzes for uranium and transuranium elements in the fuel cycle chemistry (especially the separation and determination of plutonium, america, neptunium, curium and uranium). In 2015, this workplace was influenced a combination of age degradation with radiation degradation of one of the plastic packages to leakage of the Am and Pu compound. The contamination was local and within the limits of non-interference levels. The health of workers and the environment were not compromised. However, this event has led to an acceleration of the redevelopment of the workplace, which took place between 2016 and 2017. For this purpose, a working procedure was developed which regulates the way of remedial work, including the solidification of the most risky materials. (authors)

  1. 1875 Los Estados de la costa y el conflicto político con Santiago Pérez

    Directory of Open Access Journals (Sweden)

    Dayana Angélica Rueda Cáceres

    2011-01-01

    Full Text Available Durante el periodo federal colombiano, a los Estados Soberanos de Panamá, Bolívar y Magdalena, se les identificó como Estados costeños, Estados del Norte o Estados del Atlántico. Panamá mantuvo fuertes vínculos con los demás Estados costeños auxiliándolos con material bélico, hombres y dinero en caso que fue necesario en las destinas contiendas ocurridas durante el periodo de 1855 - 1885. En el presente artículo se intenta a través de los acontecimientos políticos y bélicos de 1875, señalar, la participación de las Fuerzas del Estado soberano de Panamá en esta contienda y la relación u alianza político militar que mantuvieron los denominados Estados costeños.2 Dado que 1875 es un año bastante agitado, nos centraremos en el descontento de los Estados de la Costa con el Presidente de la Unión, Santiago Pérez, quien, según los primeros, buscaba favorecer tanto en campaña como en las urnas, la candidatura de Aquileo Parra como su sucesor frente a la emblemática figura del recién llegado al país Rafael Núñez, después de 10 años de ausencia.

  2. Profitability of Cedrela odorata L. in Agroforestry Systems with Coffee in Pérez Zeledón, Costa Rica

    Directory of Open Access Journals (Sweden)

    Mariela González-Rojas

    2017-12-01

    Full Text Available The objective of this research was to determine the production of cedar wood in agroforestry systems (AF with coffee, using a prediction model of the commercial volume obtained in the study area, as well as the profitability generated by the sale of coffee, wood and payment for environmental services (PPSA. The study was carried out in the canton of Pérez Zeledón, province of San José, Costa Rica. There were established 30 temporary sampling plots of 1000 m2 in AF with cedar between five and 17 years of age. The diameter growth (DBH and the commercial height (CH of the species were evaluated, as well as the management of the SAF (activities, inputs and yields and coffee production through the producer interview. The obtained models allowed to predict the commercial volume (m3 tree-1 according to age (R2 = 88.7%, DBH (R2 = 90.3% and CH (R2 = 97.2%. The average coffee production of the sampled sites was 26 fanegas ha-1 year-1. At the age of 17 years of the cedar, a production of 1.04 m3 tree-1 (92.13 m3 ha-1 of standing timber was obtained, which represented a financial contribution of 81% of the net present value (NPV of the AF in the analysis period. The estimated financial indicators allow concluding that the coffee-cedar AF is profitable since it generated a positive NPV of ₡ 8 198 601,5, an internal rate of return (IRR of 16% which was higher than the cost of money (discount rate of 6.1% and a B/C ratio of 1.34.

  3. La estructura espacial urbana y accesibilidad diferenciada a centros de empleo en Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    César M. Fuentes Flores

    2009-01-01

    Full Text Available Existen disparidades intraurbanas en los tiempos de traslado del viaje al trabajo en transporte público y privado, producto de una accesibilidad diferenciada a los centros de empleo en Ciudad Juárez, Chihuahua; el objetivo del artículo es explicarlas. La metodología empleada es el análisis espacial, además se elaboraron cuatro modelos de regresión simple estimados mediante la técnica de mínimos cuadrados ordinarios (MCO. Las variables se construyeron con información de la Encuesta de origen-destino de 1997, el XII Censo general de población y vivienda de 2000 y el XIII Censo económico de 1999, a nivel del área geográfica básica (AGEB. Los resultados de los modelos de regresión indican que el índice de accesibilidad, el balance entre empleos y viviendas, el valor del suelo y las variables aproximadas de uso del suelo (proporción de trabajadores en el sector secundario y terciario muestran efectos estadísticamente significativos al explicar diferencias en los tiempos de traslado al trabajo en transporte público. Así mismo, el índice de accesibilidad, valor del suelo y la proporción de trabajadores en el sector secundario incrementan dichos tiempos en transporte privado. Los resultados tienen implicaciones en términos de políticas de usos del suelo y planeación del transporte.

  4. Mujeres indígenas, gobierno y comunidad: El caso de mujeres tarahumaras en Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    Martha Estela Pérez García

    2016-01-01

    Full Text Available La situación de las mujeres indígenas en Chihuahua se caracteriza por la marginación, pobreza y desigualdad. Por esta razón, algunos(as miembros de la etnia rarámuri obligados por las necesidades más elementales, emigran con sus familias a las principales ciudades de la entidad. En el caso específico de la comunidad indígena asentada en Ciudad Juárez, Chihuahua, encontramos que son mujeres quienes dirigen las tareas de gobierno, rol tradicionalmente asignados a los hombres. El objetivo de este artículo es realizar un acercamiento de la participación femenina en el gobierno de la colonia tarahumara, con el propósito de conocer cómo se genera esta participación, sus liderazgos y las formas de resolución de sus problemas al interior de la comunidad. Para este propósito se realizaron entrevista con representantes de la comunidad y sus dos gobernadoras, además de un grupo focal con la presidenta y un grupo de mujeres. Los resultados de esta investigación mostraron dos cuestiones significativas: la situación de extrema vulnerabilidad en que viven las indígenas en el entorno urbano y que el gobierno femenino usa estrategias apegadas al rol de género para mantener el orden, el liderazgo y mejorar la calidad de vida de su comunidad.

  5. Quaternary alluvial fans of Ciudad Juárez, Chihuahua, northern México: OSL ages and implications for climatic history of the region

    Science.gov (United States)

    Zúñiga de León, David; Kershaw, Stephen; Mahan, Shannon

    2016-01-01

    Alluvial fans formed from sediments derived from erosion of the Juárez Mountains in northernmost México have a significant flood impact on the Ciudad Juárez, which is built on the fan system. The northern part of Ciudad Juárez is the most active; further south, older parts of the fan, upon which the rest of the city is built, were largely eroded by natural processes prior to human habitation and subsequently modified only recently by human construction. Three aeolian sand samples, collected from the uppermost (youngest) parts of the fan system in the city area, in places where human intervention has not disturbed the sediment, and constrain the latest dates of fan building. Depositional ages of the Quaternary alluvial fans were measured using Optically Stimulated Luminescence (OSL) on aeolian sands that have inter-fingered with alluvial fan material. These dates are: a) sample P1, 31 ka; b) sample P2, 41 ka; c) sample P3, 74 ka, between Oxygen Isotope Stages (OIS) 3 to 5. They demonstrate that fan development, in the area now occupied by the city, terminated in the Late Pleistocene, immediately after what we interpret to have been an extended period of erosion without further deposition, lasting from the Late Pleistocene to Holocene. The three dates broadly correspond to global glacial periods, implying that the cool, dry periods may reflect periods of aeolian transport in northern México in between phases that were wetter to form the alluvial fans. Alluvial fan margins inter-finger with fluvial terrace sediments derived from the Río Bravo, indicating an additional component of fan dissection by Río Bravo lateral erosion, presumed to be active during earlier times than our OSL ages, but these are not yet dated. Further dating is required to ascertain the controls on the fan and fluvial system.

  6. La vegetación como sistema de control para las Islas de Calor Urbano en Ciudad Juárez, Chihuahua

    Directory of Open Access Journals (Sweden)

    Maria Goretti Salas Esparza

    2017-06-01

    Full Text Available A nivel mundial, el territorio ha experimentado un proceso de urbanización, el cual ha modificado las condiciones físicas y climatológicas como consecuencia de la densificación y construcción de las zonas urbanas, sobre todo a partir de la utilización de materiales que retienen el calor y que propician el fenómeno de isla de calor urbano (ICU, término establecido por Gordon Manley en 1958 (Fernández, 1996. Este trabajo evalúa el impacto que tienen las áreas verdes para actuar como sistema de control de isla de calor sobre Ciudad Juárez, Chihuahua, durante el verano del 2016. La metodología consistió en analizar cuatro áreas verdes para determinar la diferencia de temperatura que existe entre las zonas arboladas y las no arboladas, registrando temperaturas con sensores Hobo®, cada 15 minutos. Los resultados obtenidos demostraron que existe una diferencia de temperatura de 3,82 °C entre los lugares arbolados y no arbolados en el área verde con mayor nivel de vegetación, mientras que el área verde con menor nivel de vegetación se encontró una diferencia de 0,53 °C. Sin embargo, el impacto que tendrán sobre la zona urbana dependerá de la configuración y características de la misma área verde.   Documeto fianciado bajo el marco Tesis de Maestría en Planificación y Desarrollo Urbano " Áreas verdes como sistema de control para las Islas de Calor Urbano en Ciudad Juárez, Chihuahua".Universidad Autónoma de Ciudad Juárez

  7. On the taxonomic status of Liolaemus filiorum Pincheira-Donoso & Ramírez, 2005 (Iguania: Liolaemidae: A response to Pincheira-Donoso

    Directory of Open Access Journals (Sweden)

    Jaime Troncoso-Palacios

    2015-12-01

    Full Text Available I discuss the arguments put forth recently by Pincheira-Donoso, in which the author attempts to revalidate Liolaemus filiorum Pincheira-Donoso & Ramírez, 2005, a species which I had previously considered a junior synonym of L. puritamensis. The author of this revalidation omitted important information including: 1 the description was published without peer review, 2 one of the two types was deposited in a personal collection, 3 the diagnosis is weak and unclear, 4 the holotype was not explicitly described or illustrated. Additionally, the author did not discuss key aspects of my paper, most particularly, the incorrect designation of the holotype of L. filiorum.

  8. Señales desde una biblioteca perdida. Infortunios de Alonso Ramírez: identidad criolla y cuestión barroca

    OpenAIRE

    Becerra, Eduardo

    2010-01-01

    En los setenta y ochenta del siglo XX surge una corriente en la crítica cultural hispanoamericanista poscolonial, centrada en el discurso identitario y emancipador, enfrentada con los usos tradicionales de la filología. Infortunios de Alonso Ramírez(1690), basada en modelos novelescos áureos de éxito como el relato de aventuras, la novela de cautiverio, y la picaresca, es una de las obras más estudiadas. El artículo estudia los modelos retóricos de esta obra, su relación con la novela colonia...

  9. Maquiladoras de arneses automotrices: entre la producción de clase mundial y la precariedad laboral en Juárez

    Directory of Open Access Journals (Sweden)

    Martha Cecilia Miker Palafox

    2010-11-01

    Full Text Available This article show how the globalization process has impacted in the harness maquiladora industry in Ciudad Juárez and how job insecurity and world-class production can coexist in the production of automotive harness where two of the main local stakeholders (unions and the State are completely blurred and accomplices. The document is based mainly in the analysis of four cases of maquiladora plants producing automotive harnesses owned by world leading corporations, which concentrate over 90% of employment and harness production plants in the in the city.

  10. El discurso amoroso en la novela de la Restauración: las novelas de Benito Pérez Galdós

    OpenAIRE

    Pérez López, Ana María

    2006-01-01

    El objetivo de esta Tesis Doctoral ha sido el estudio de las concepciones amorosas que están presentes en la novela española de la Restauración (tomando como punto de referencia la obra de Benito Pérez Galdós), sobre todo, en lo que respecta a una visión idealista, y en una doble vertiente: 1,- La importancia del discurso amoroso para la conformación estructural y temática de estas obras, por tratarse de un componente esencial en la configuración sentimental, moral e intelectual de los person...

  11. Factores biosocioculturales y uso de métodos anticonceptivos en mujeres que acuden al hospital Elpidio Berovidez Pérez, Otuzco 2014.

    OpenAIRE

    Campos Jara, Clara Luz

    2015-01-01

    La investigación tuvo como objetivo general, determinar la relación entre los factores biosocioculturales: edad, estado civil, religión, escolaridad, rol de género con el uso de métodos anticonceptivos en mujeres que acuden al consultorio de obstetricia del Hospital Elpidio Berovidez Pérez, Otuzco 2014, fue de tipo cuantitativo–prospectivo, la muestra estuvo constituida por 115 mujeres de una población de 390, los datos se obtuvieron con la técnica de la entrevista. Obteniéndose los siguiente...

  12. Factores biosocioculturales y uso de métodos anticonceptivos en mujeres que acuden al Hospital Elpidio Berovidez Pérez, Otuzco 2014

    OpenAIRE

    Campos Jara, Clara Luz

    2016-01-01

    La investigación tuvo como objetivo general, determinar la relación entre los factores biosocioculturales: edad, estado civil, religión, escolaridad, rol de género con el uso de métodos anticonceptivos en mujeres que acuden al consultorio de obstetricia del Hospital Elpidio Berovidez Pérez, Otuzco 2014, fue de tipo cuantitativo–prospectivo, la muestra estuvo constituida por 115 mujeres de una población de 390, los datos se obtuvieron con la técnica de la entrevista. Obteniéndose los siguiente...

  13. Engineering Institute

    Science.gov (United States)

    Projects Past Projects Publications NSEC » Engineering Institute Engineering Institute Multidisciplinary engineering research that integrates advanced modeling and simulations, novel sensing systems and new home of Engineering Institute Contact Institute Director Charles Farrar (505) 665-0860 Email UCSD EI

  14. 76 FR 24793 - Airworthiness Directives; Rolls-Royce plc (RR) RB211-524 Series and RB211 Trent 500, 700, and 800...

    Science.gov (United States)

    2011-05-03

    ... Airworthiness Directives; Rolls-Royce plc (RR) RB211-524 Series and RB211 Trent 500, 700, and 800 Series... the AD. Costs of Compliance Based on the service information, we estimate that this AD would affect...

  15. Dynamics of plc gene transcription and α-toxin production during growth of Clostridium perfringens strains with contrasting α-toxin production

    DEFF Research Database (Denmark)

    Abildgaard, Lone; Schramm, Andreas; Rudi, Knut

    2009-01-01

    The aim of the present study was to investigate transcription dynamics of the α-toxin-encoding plc gene relative to two housekeeping genes (gyrA and rplL) in batch cultures of three Clostridium perfringens strains with low, intermediate, and high levels of α-toxin production, respectively. The plc...... transcript level was always low in the low α-toxin producing strain. For the two other strains, plc transcription showed an inducible pattern and reached a maximum level in the late exponential growth phase. The transcription levels were however inversely correlated to α-toxin production for the two strains....... We propose that this discrepancy is due to differences in plc translation rates between the strains and that strain-specific translational rates therefore must be determined before α-toxin production can be extrapolated from transcript levels in C. perfringens....

  16. Comercio transfronterizo y su impacto en la región de El Paso-Ciudad Juárez: Una propuesta de financiamiento de la planeación binacional

    Directory of Open Access Journals (Sweden)

    Sergio Peña

    2003-01-01

    Full Text Available El presente artículo analiza el impacto del comercio transfronterizo en la región de El Paso-Ciudad Juárez, entendido como tal el valor de las compras que los consumidores mexicanos realizan en El Paso. Los resultados muestran que el monto de las ventas al menudeo en esta ciudad en el año 2000 excedieron en 33% los valores ajustados del modelo. Este último debe interpretarse como el efecto del comercio transfronterizo. Los impuestos generados por el comercio transfronterizo suman aproximadamente 125 millones de dólares y equivalen aproximadamente a los egresos brutos totales del municipio de Ciudad Juárez en el año 2000. El artículo pone de relieve la potencialidad que tendrían esos recursos para el financiamiento del desarrollo urbano binacional de El Paso y Ciudad Juárez

  17. Study on the Development of Builtin PLC%内嵌式PLC的设计与实现

    Institute of Scientific and Technical Information of China (English)

    刘家亮; 熊晓红; 黄树槐

    2001-01-01

    介绍了PLC编程语言——语句表的结构和特点,讨论了语句表解释程序的词法分析和语法分析技术,以及运用面向对象的编程思想、构造语句表解释程序,实现内嵌式PLC等问题。%In this thesis, the architecture and character of the PLC languageSTL are introduced. And then, the structure of STL interpreting program and the technique of lexical analysis and syntax analysis are discussed. Develop the STL interpreting program with the idea of OOP(objectoriented programming), realized the builtin PLC are also attempted.

  18. Data acquisition and control system with a programmable logic controller (PLC) for a pulsed chemical oxygen-iodine laser

    Science.gov (United States)

    Yu, Haijun; Li, Guofu; Duo, Liping; Jin, Yuqi; Wang, Jian; Sang, Fengting; Kang, Yuanfu; Li, Liucheng; Wang, Yuanhu; Tang, Shukai; Yu, Hongliang

    2015-02-01

    A user-friendly data acquisition and control system (DACS) for a pulsed chemical oxygen -iodine laser (PCOIL) has been developed. It is implemented by an industrial control computer,a PLC, and a distributed input/output (I/O) module, as well as the valve and transmitter. The system is capable of handling 200 analogue/digital channels for performing various operations such as on-line acquisition, display, safety measures and control of various valves. These operations are controlled either by control switches configured on a PC while not running or by a pre-determined sequence or timings during the run. The system is capable of real-time acquisition and on-line estimation of important diagnostic parameters for optimization of a PCOIL. The DACS system has been programmed using software programmable logic controller (PLC). Using this DACS, more than 200 runs were given performed successfully.

  19. Měření výpočetního výkonu PLC PFC200

    OpenAIRE

    Majchrák, František

    2017-01-01

    V práci sa analyzujú možnosti merania výpočetného výkonu PLC PFC200 od firmy WAGO. Prvú časť práce venujem priblíženiu funkčnosti automatu, jeho využitiu, jednotlivým možnostiam programovania, zoznamujem sa s implementáciou vlastných programových blokov v prostredí embedded Linux a zisťujem jeho prepojenie s PLC prostredím. V druhej časti práce sa sústredím na meranie výkonu, jeho typy, popis certifikovaných meraní a jeho celkové zhodnotenie. V poslednej časti je vysvetlená aplikácia, ktorá z...

  20. First Experience with PLC, OPC and BridgeVIEW in the context of the HMPID liquid distribution prototype

    CERN Document Server

    Maatta, E; CERN. Geneva; Swoboda, Detlef; Lecoeur, G

    1999-01-01

    The TESt (Test and Evaluation Station) [3] project consists in the construction of a stand alone unit for a specific sub-system of an ALICE detector in order to gain first experience with commercial products for detector control. Although the control system includes only a small number of devices and is designed for a particular application, it covers nevertheless all layers of a complete system and can be extended or used in different applications. The control system prototype has been implemented for the Perfluorohexane (C6F14) liquid distribution of the ALICE-HMPID (High-Momentum Particle IDentification)[5]. This report presents the experience acquired while developing the control system with off the shelf items: National Instruments BridgeVIEW [6] supervision software, SIEMENS PLC S7-300 [7] and the programming tool STEP 7. The OPC standard (OLE [12] for Process Control) [8] was used for the communication between BridgeVIEW and the PLC.

  1. Pulmonary effects of active smoking and secondhand smoke exposure among adolescent students in Juárez, Mexico.

    Science.gov (United States)

    Bird, Yelena; Staines-Orozco, Hugo

    2016-01-01

    Youth smoking trends among Latin American countries, including Mexico, are on the rise. Notably, although the high prevalence of smoking in teens has been well documented in the literature, few studies have evaluated the impact of smoking and secondhand smoke (SHS) exposure on their respiratory system. To investigate the effects of smoking and SHS exposure on the respiratory health and lung function among eighth-grade students in Juárez, Mexico. A cross-sectional study was undertaken on a sample of convenience. The study outcomes centered on evaluating 300 students' lung function by spirometry (forced expiratory volume in 1 second [FEV1], forced expiratory volume in 1 second/forced vital capacity ratio [FEV1/FVC], and forced mid-expiratory flow rate [FEF25%-75%]) and their respiratory health (smoking behavior and SHS exposure) by their self-reported responses to a standardized respiratory questionnaire. The study outcomes were compared among three distinct groups: 1) nonsmokers/nonexposed to SHS; 2) nonsmokers/exposed to SHS; and 3) smokers. The majority of the study participants were 14 years old (85%), females (54%), who attended eighth grade in a public school setting (56%). Approximately, half reported being of low socioeconomic status (49%) and nonsmokers/exposed to SHS (49%). The lung function parameters of smokers were found to be lower (FEV1 =62.88±10.25; FEV1/FVC =83.50±14.15; and FEF25%-75% =66.35±12.55) than those recorded for the nonsmokers/exposed to SHS (FEV1 =69.41±11.35; FEV1/FVC =88.75±15.75; and FEF25%-75% =78.90±14.65) and significantly reduced when compared to the nonsmokers/nonexposed to SHS (FEV1 =79.14±13.61; FEV1/FVC =94.88±21.88; and FEF25%-75% =87.36±17.02) (P<0.001). Similarly, respiratory complaints were more prevalent among smokers and those exposed to SHS when compared to nonsmokers/nonexposed to SHS. Our findings suggest that initiation of cigarette smoking and, to a lesser extent, exposure to SHS in adolescence leads to

  2. Protease-activated receptor-2 stimulates intestinal epithelial chloride transport through activation of PLC and selective PKC isoforms.

    Science.gov (United States)

    van der Merwe, Jacques Q; Moreau, France; MacNaughton, Wallace K

    2009-06-01

    Serine proteases play important physiological roles through their activity at G protein-coupled protease-activated receptors (PARs). We examined the roles that specific phospholipase (PL) C and protein kinase (PK) C (PKC) isoforms play in the regulation of PAR(2)-stimulated chloride secretion in intestinal epithelial cells. Confluent SCBN epithelial monolayers were grown on Snapwell supports and mounted in modified Ussing chambers. Short-circuit current (I(sc)) responses to basolateral application of the selective PAR(2) activating peptide, SLIGRL-NH(2), were monitored as a measure of net electrogenic ion transport caused by PAR(2) activation. SLIGRL-NH(2) induced a transient I(sc) response that was significantly reduced by inhibitors of PLC (U73122), phosphoinositol-PLC (ET-18), phosphatidylcholine-PLC (D609), and phosphatidylinositol 3-kinase (PI3K; LY294002). Immunoblot analysis revealed the phosphorylation of both PLCbeta and PLCgamma following PAR(2) activation. Pretreatment of the cells with inhibitors of PKC (GF 109203X), PKCalpha/betaI (Gö6976), and PKCdelta (rottlerin), but not PKCzeta (selective pseudosubstrate inhibitor), also attenuated this response. Cellular fractionation and immunoblot analysis, as well as confocal immunocytochemistry, revealed increases of PKCbetaI, PKCdelta, and PKCepsilon, but not PKCalpha or PKCzeta, in membrane fractions following PAR(2) activation. Pretreatment of the cells with U73122, ET-18, or D609 inhibited PKC activation. Inhibition of PI3K activity only prevented PKCdelta translocation. Immunoblots revealed that PAR(2) activation induced phosphorylation of both cRaf and ERK1/2 via PKCdelta. Inhibition of PKCbetaI and PI3K had only a partial effect on this response. We conclude that basolateral PAR(2)-induced chloride secretion involves activation of PKCbetaI and PKCdelta via a PLC-dependent mechanism resulting in the stimulation of cRaf and ERK1/2 signaling.

  3. Comparative response time and fault logging with a PLC and supervisory software and a standalone unit developed for recording

    International Nuclear Information System (INIS)

    Baldaconi, Ricardo H.; Costa, Fabio E. da

    2017-01-01

    The Cobalt-60 irradiator of IPEN / CNEN, a category IV facility, has a security system for inter locking doors or exposure of radioactive sources made simultaneously by a programmable logic controller (PLC) model S7-200 from Siemens and a relay logic. From a set of information, both systems work together opening doors or exposing the sources. All incoming and outgoing information are sent serially via EIA232 communication to a personal computer with Windows® platform for a supervisory program which provides the monitoring of the entire process by a synoptic table on the computer screen and is also intended to keep records of all events on the computer's hard drive. A deficiency was found for the process of sending events via serial communication (EIA232) from PLC to the supervisory program. When failure occurred in a very short time, the PLC always took the right decision, but the registration process that had to go through the Windows® timeshare lost the information. In the previous work developed a standalone electronics unit connected to the inputs and outputs of the security system, fully optocoupled to avoid any interference to the security system that records each event on a memory card. In this work, for checking the unit developed record time ability, transients incoming signals for simulating failures, were injected at security system inputs and the response time of security system, supervisory program and the autonomous unity were measured and compared. (author)

  4. Development of Remote Monitoring and a Control System Based on PLC and WebAccess for Learning Mechatronics

    Directory of Open Access Journals (Sweden)

    Wen-Jye Shyr

    2013-02-01

    Full Text Available This study develops a novel method for learning mechatronics using remote monitoring and control, based on a programmable logic controller (PLC and WebAccess. A mechatronics module, a Web-CAM and a PLC were integrated with WebAccess software to organize a remote laboratory. The proposed system enables users to access the Internet for remote monitoring and control of the mechatronics module via a web browser, thereby enhancing work flexibility by enabling personnel to control mechatronics equipment from a remote location. Mechatronics control and long-distance monitoring were realized by establishing communication between the PLC and WebAccess. Analytical results indicate that the proposed system is feasible. The suitability of this system is demonstrated in the department of industrial education and technology at National Changhua University of Education, Taiwan. Preliminary evaluation of the system was encouraging and has shown that it has achieved success in helping students understand concepts and master remote monitoring and control techniques.

  5. Comparative response time and fault logging with a PLC and supervisory software and a standalone unit developed for recording

    Energy Technology Data Exchange (ETDEWEB)

    Baldaconi, Ricardo H., E-mail: ricardohovacker@hotmail.com [Escola Senai Roberto Simonsen, Educação e Tecnologia, Sao Paulo, SP (Brazil); Costa, Fabio E. da, E-mail: fecosta@ipen.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), São Paulo, SP (Brazil)

    2017-07-01

    The Cobalt-60 irradiator of IPEN / CNEN, a category IV facility, has a security system for inter locking doors or exposure of radioactive sources made simultaneously by a programmable logic controller (PLC) model S7-200 from Siemens and a relay logic. From a set of information, both systems work together opening doors or exposing the sources. All incoming and outgoing information are sent serially via EIA232 communication to a personal computer with Windows® platform for a supervisory program which provides the monitoring of the entire process by a synoptic table on the computer screen and is also intended to keep records of all events on the computer's hard drive. A deficiency was found for the process of sending events via serial communication (EIA232) from PLC to the supervisory program. When failure occurred in a very short time, the PLC always took the right decision, but the registration process that had to go through the Windows® timeshare lost the information. In the previous work developed a standalone electronics unit connected to the inputs and outputs of the security system, fully optocoupled to avoid any interference to the security system that records each event on a memory card. In this work, for checking the unit developed record time ability, transients incoming signals for simulating failures, were injected at security system inputs and the response time of security system, supervisory program and the autonomous unity were measured and compared. (author)

  6. Automatic processing of list of journals and publications in the Nuclear Research Institute

    International Nuclear Information System (INIS)

    Vymetal, L.

    Using an EC 1040 computer, the Institute of Nuclear Research processed the list of journals in the reference library of the Czechoslovak Atomic Energy Commission including journals acquired by all institutions subordinated to the Czechoslovak Atomic Energy Commission, ie., UJV Rez (Nuclear Research Institute), Nuclear Information Centre Prague, UVVVR Prague (Institute for Research, Production and Application of Radioisotopes) and Institute of Radioecology and Applied Nuclear Techniques Kosice. Computer processing allowed obtaining files arranged by libraries, subject matters of the journals, countries of publication, and journal titles. Automated processing is being prepared of publications by UJV staff. The preparation is described of data for computer processing of both files and specimens are shown of printouts. (Ha)

  7. Los cambios en la estructura intraurbana de Ciudad Juárez, Chihuahua, de monocéntrica a multicéntrica

    Directory of Open Access Journals (Sweden)

    César M. Flores Fuentes

    2001-01-01

    Full Text Available El artículo tiene como objetivo analizar los cambios en la estructura intraurbana de Ciudad Juárez, Chihuahua, durante el periodo 1989-1993. Para ello se usaron los censos económicos de comercio y servicios de 1989 y 1994, el censo de población de 1990 y el conteo de población de1995, ambos a nivel de AGEB. Lo anterior fue posible mediante la construcción del índice de centralidad. En 1989 la estructura intraurbana de Ciudad Juárez mostró la presencia de dos centros principales. Dichos centros, aunque con la misma jerarquía urbana, tienen distintas funciones, como resultado de contar con ramas económicas que tienen diferentes áreas de mercado, desigual densidad poblacional y distinta capacidad de compra de sus principales consumidores. Para 1994 la ciudad siguió teniendo esos dos centros principales, aunque se crearon tres nuevos subcentros que se localizan fuera de las tradicionales áreas centrales, en zonas de fácil acceso y buena infraestructura. En este contexto, la estructura intraurbana se encuentra en proceso de convertirse de monocéntrica en multicéntrica

  8. Política social, protección social y programa empleo temporal: el caso Juárez, México

    Directory of Open Access Journals (Sweden)

    Claudia Marcela Roqueme Ramírez

    2013-01-01

    Full Text Available Este trabajo es un análisis del Programa Empleo Temporal (PET en Ciudad Juárez en el marco del concepto protección social. Para ello se indaga acerca de la política social en México como un intento de comprender hasta qué punto ha contribuido dicho programa a esta alternativa de desarrollo. En este sentido, la revisión bibliográfica se empleó como una herramienta documental y metodológica que permitió conocer otras experiencias en América Latina para situar que la problemática del desempleo y la protección constituyen aún un desafío. Ciudad Juárez no es la excepción. La indagación del PET conduce a proponer que, aunque sus efectos sean positivos temporalmente, los resultados obtenidos son limitados ya que las políticas de acción están encaminadas a solventar en su mayoría contingencias y no una sustentabilidad a mediano y largo plazo. Finalmente, se propone la creación de un índice para monitorear y evaluar el impacto del PET en términos de cobertura, del perfil de los beneficiarios y de los ingresos generados entre los beneficiados.

  9. Convergencia tecnológica y nacimiento de las maquiladoras de tercera generación: el caso Delphi-Juárez

    Directory of Open Access Journals (Sweden)

    Arturo Lara Rivero

    2001-01-01

    Full Text Available El objetivo de este trabajo es el de explicar el nacimiento de un moderno, inédito centro de investigación y desarrollo de auto partes electrónicas: Delphi - Juárez . La pregunta básica que guía este trabajo es la siguiente: ¿cuáles son las implicaciones de la convergencia tecnológica electrónica / automotriz sobre el número, distribución espacial y jerárquica de los proveedores? Esta convergencia tecnológica viene a revalorizar las antiguas funciones eléctricas (y tanto a los viejos proveedores de partes eléctricas maduras como a los proveedores de arneses y a insertarlas en una nueva jerarquía tecnológica con interacciones más intensas entre proveedores de arneses, léase maquiladoras del sector auto partes electrónicos / eléctricos y las empresas propiamente automotrices. Resulta imprescindible leer la formación del centro de investigación y desarrollo Delphi Juárez desde la perspectiva de los procesos de convergencia, resolución de desequilibrios tecnológicos y coevolución tecnológica del campo electrónico y automotriz.

  10. Nuevos hallazgos documentales y biográficos sobre Alonso Xuárez maestro de Sebastián Durón

    Directory of Open Access Journals (Sweden)

    de la Fuente Charfolé, José Luis

    2012-12-01

    Full Text Available Alonso Xuárez was no minor composer in the musical field of his time. The quality and effectiveness of his compositions makes them deserving of a leading place in Spanish and European music of the 17th century. In spite of this almost nothing is known about this composer prior to his being appointed to teach in the chapel of Cuenca cathedral. Virtually all the currently available data is of a secondary and collateral nature and arises from research into his disciple the organist Sebastián Durón, the renowned opera composer and teacher at the Capilla Real of Charles II.

    Alonso Xuárez no fue un compositor menor dentro del panorama musical de su tiempo. La calidad y eficacia de su música merece estar en primera línea de la música española y europea del siglo XVII. Sin embargo, el desconocimiento de este músico es casi completo con anterioridad a su nombramiento en el magisterio de capilla de la catedral de Cuenca. Prácticamente todos los datos expuestos hasta el momento han sido restos secundarios y colaterales desprendidos de otras investigaciones realizadas sobre la figura de su discípulo, el reputado compositor de teatro lírico y maestro de la Capilla Real de Carlos II, el organista Sebastián Durón.

  11. Synthesis of FBD-based PLC design from NuSCR formal specification

    International Nuclear Information System (INIS)

    Yoo, Junbeom; Cha, Sungdeok; Kim, Chang Hwoi; Song, Duck Yong

    2005-01-01

    NuSCR is a formal specification language to document requirements for real-time embedded software with nuclear engineering applications in mind. Domain experts actively participated in selecting how to best represent various aspects. It uses tabular notations to specify required computations and automata to document state- or time-dependent behavior. As programmable logic controllers (PLCs) are widely used to implement real-time embedded software, synthesis of PLC code from a formal specification is desirable if transformation rules can be rigorously defined. In addition to improved productivity, results of safety analysis performed on requirements remain valid. In this paper, we demonstrate how NuSCR specification can be translated into semantically equivalent function block diagram (FBD) code. The process, except the initial phase where user provides information on missing or implicit details, is automated. Since executable code can be automatically generated using CASE tools from FBD, much of software development is automated. Proposed technique is currently being used in developing reactor protection system (RPS) for nuclear power plants in Korea, and experience to date has been positive. We demonstrate the proposed approach using the fixed set-point rising trip which is one of the most complex trip logics included in the RPS

  12. TRPV1 and PLC Participate in Histamine H4 Receptor-Induced Itch.

    Science.gov (United States)

    Jian, Tunyu; Yang, Niuniu; Yang, Yan; Zhu, Chan; Yuan, Xiaolin; Yu, Guang; Wang, Changming; Wang, Zhongli; Shi, Hao; Tang, Min; He, Qian; Lan, Lei; Wu, Guanyi; Tang, Zongxiang

    2016-01-01

    Histamine H4 receptor has been confirmed to play a role in evoking peripheral pruritus. However, the ionic and intracellular signaling mechanism of activation of H4 receptor on the dorsal root ganglion (DRG) neurons is still unknown. By using cell culture and calcium imaging, we studied the underlying mechanism of activation of H4 receptor on the DRG neuron. Immepip dihydrobromide (immepip)-a histamine H4 receptor special agonist under cutaneous injection-obviously induced itch behavior of mice. Immepip-induced scratching behavior could be blocked by TRPV1 antagonist AMG9810 and PLC pathway inhibitor U73122. Application of immepip (8.3-50 μM) could also induce a dose-dependent increase in intracellular Ca(2+) ([Ca(2+)]i) of DRG neurons. We found that 77.8% of the immepip-sensitized DRG neurons respond to the TRPV1 selective agonist capsaicin. U73122 could inhibit immepip-induced Ca(2+) responses. In addition, immepip-induced [Ca(2+)]i increase could be blocked by ruthenium red, capsazepine, and AMG9810; however it could not be blocked by TRPA1 antagonist HC-030031. These results indicate that TRPV1 but not TRPA1 is the important ion channel to induce the DRG neurons' responses in the downstream signaling pathway of histamine H4 receptor and suggest that TRPV1 may be involved in the mechanism of histamine-induced itch response by H4 receptor activation.

  13. Pengaruh Problem-Based Learning terhadap Hasil Belajar ditinjau dari Motivasi Belajar PLC di SMK

    Directory of Open Access Journals (Sweden)

    Bekti Wulandari

    2013-06-01

    Full Text Available Penelitian ini bertujuan untuk mengetahui: (1 perbedaan hasil belajar siswa pada mata pelajaran pemrograman sistem kendali PLC antara siswa yang diajar dengan metode PBL dengan siswa yang diajar dengan metode demonstrasi, (2 pengaruh interaksi antara metode PBL dan metode demonstrasi dengan motivasi belajar terhadap hasil belajar siswa, (3 perbedaan hasil belajar siswa antara siswa yang diajar dengan metode PBL dengan yang diajar dengan metode demonstrasi ditinjau dari motivasi belajar. Penelitian ini merupakan penelitian eksperimen semu dengan desain faktorial yang dilakukan dengan memberikan perlakuan metode pembelajaran. Analisis data dalam penelitian ini  menggunakan uji-t dan ANAVA dengan program SPSS 16. Hasil penelitian menunjukkan bahwa: (1 terdapat perbedaan hasil belajar antara siswa yang diajar dengan metode PBL dengan yang diajar dengan metode demonstrasi, (2 tidak terdapat pengaruh interaksi antara metode PBL dan demonstrasi dengan motivasi belajar terhadap hasil belajar, (3 terdapat perbedaan hasil belajar antara siswa yang diajar dengan metode PBL dengan yang diajar dengan metode demonstrasi ditinjau dari motivasi tinggi dan rendah. Kata kunci: metode pembelajaran, Problem-Based Learning, motivasi belajar, hasil belajar

  14. Department of Energy: monitoring and control of British Nuclear Fuels plc

    International Nuclear Information System (INIS)

    1989-01-01

    British Nuclear Fuels plc (BNFL) was set up in 1971 to take over the nuclear fuel production and reprocessing activities of the United Kingdom Atomic Energy Authority with the Department of Energy (as majority shareholder) being responsible for the monitoring and control of BNFL's activities. BNFL's activities include the production of nuclear fuel, uranium enrichment, and the transportation and reprocessing of spent fuel. Its major capital investment includes the construction of the Thermal Oxide Reprocessing Plant (THORP) due for completion in 1992. This study examined the effectiveness of the Department's arrangements for monitoring and control and for safeguarding the Government's investment in the company, the arrangements for examining BNFL's capital investment programme and the extent to which the Department's main aims have been achieved. The examination was restricted to the financial performance. The National Audit Office found evidence to suggest that BNFL's financial performance has not kept pace with the general performance level of British Industry. Future success and performance will depend on the success of the THORP plant. (U.K.)

  15. Operación de un PLC Mediante un PDA Vía ZIGBEE

    Directory of Open Access Journals (Sweden)

    Juan Zuluaga-Botero

    2015-07-01

    Full Text Available En este artículo se muestra la parte preliminar de interconexión de un módulo ZigBee con un Asistente Digital Personal (PDA a través de la red del Sistema de telefonía Móvil Global (GSM, para aplicación futura de comunicación con un Controlador Lógico Programable (PLC. Esta aplicación permite realizar monitoreo y control del sistema, de manera remota y con dispositivos móviles siendo el alcance del proyecto de investigación. Para este proyecto inicialmente se realizan comunicaciones que permiten empalmar las tecnologías de las redes de telefonía móvil celular con la red ZigBee, haciendo una interfaz transparente para el usuario, presentando dichos resultados en este artículo. Para esto se trabaja con tramas de datos básicas a través de la red de telefonía móvil celular, mediante mensajería corta recibida por el puerto serial del Zigbee remoto, utilizando microcontroladores para el control de los módulos que conforman esta parte del sistema de comunicación, estableciendo la interfaz con el dispositivo móvil o Smartphone vía Zigbee.

  16. The Influence of Marketing Intelligence on Business Competitive Advantage (A Study of Diamond Bank Plc

    Directory of Open Access Journals (Sweden)

    Ladipo Patric Kunle Ade

    2017-03-01

    Full Text Available This study investigates the influence of Marketing Intelligence on Business Competitive Advantage: A study of Diamond Bank Plc, Nigeria. Five objectives were identified and translated into five research questions which aptly answered by subjecting them to a test of hypotheses. A Descriptive research was used to survey 292 members of the staff of Diamond Bank in Lagos, Central Regional branches and head office. Out of which 285 responses were obtained, while 6 responses were destroyed because they were not properly filled. Also, data was collected through a self-administered questionnaire, as Pearson correlation, T-test and Regression were used to test the hypotheses statements. However, the result of the findings revealed that marketing intelligence sub-constructs such as internal records, competitor’s sales data, marketplace opportunity, competitors’ threats and competitors’ risks have significant and positive influence on business competitive advantage. Thus, it can be concluded that marketing intelligence as sensitive information has enabled the bank to successfully acquire more profit, expand the branch network all over the country, perform better than its rivals in the market and increase its business competitive advantage.

  17. A Study on the Optimal Receiver Impedance for SNR Maximization in Broadband PLC

    Directory of Open Access Journals (Sweden)

    Massimo Antoniali

    2013-01-01

    Full Text Available We consider the design of the front-end receiver for broadband power line communications. We focus on the design of the input impedance that maximizes the signal-to-noise ratio (SNR at the receiver. We show that the amplitude, rather than the power, of the received signal is important for communication purposes. Furthermore, we show that the receiver impedance impacts the amplitude of the noise term. We focus on the background noise, and we propose a novel description of the noise experienced at the receiver port of a PLC network. We model the noise as the sum of four uncorrelated contributions, that is, the active, resistive, receiver, and coupled noise components. We study the optimal impedance design problem for real in-home grids that we assessed with experimental measurements. We describe the results of the measurement campaign, and we report the statistics of the optimal impedance. Hence, we study the best attainable performance when the optimal receiver impedance is deployed. We focus on the SNR and the maximum achievable rate, and we show that power matching is suboptimal with respect to the proposed impedance design approach.

  18. TRPV1 and PLC Participate in Histamine H4 Receptor-Induced Itch

    Directory of Open Access Journals (Sweden)

    Tunyu Jian

    2016-01-01

    Full Text Available Histamine H4 receptor has been confirmed to play a role in evoking peripheral pruritus. However, the ionic and intracellular signaling mechanism of activation of H4 receptor on the dorsal root ganglion (DRG neurons is still unknown. By using cell culture and calcium imaging, we studied the underlying mechanism of activation of H4 receptor on the DRG neuron. Immepip dihydrobromide (immepip—a histamine H4 receptor special agonist under cutaneous injection—obviously induced itch behavior of mice. Immepip-induced scratching behavior could be blocked by TRPV1 antagonist AMG9810 and PLC pathway inhibitor U73122. Application of immepip (8.3–50 μM could also induce a dose-dependent increase in intracellular Ca2+ (Ca2+i of DRG neurons. We found that 77.8% of the immepip-sensitized DRG neurons respond to the TRPV1 selective agonist capsaicin. U73122 could inhibit immepip-induced Ca2+ responses. In addition, immepip-induced Ca2+i increase could be blocked by ruthenium red, capsazepine, and AMG9810; however it could not be blocked by TRPA1 antagonist HC-030031. These results indicate that TRPV1 but not TRPA1 is the important ion channel to induce the DRG neurons’ responses in the downstream signaling pathway of histamine H4 receptor and suggest that TRPV1 may be involved in the mechanism of histamine-induced itch response by H4 receptor activation.

  19. Inhibitory effect of genistein on PLC/PRF5 hepatocellular carcinoma cell line

    Directory of Open Access Journals (Sweden)

    Mehdi Nikbakht Dastjerdi

    2015-01-01

    Full Text Available Background: Natural compounds including flavonoids like genistein (GE are able to inhibit cell proliferation and induce apoptosis. GE is the main representative of these groups. GE inhibits carcinogenic tumors such as colon, stomach, lung, and pancreas tumors. The aim of the present study was to analyze the apoptotic effect of GE in the hepatocellular carcinoma (HCC PLC/PRF5 cell line. Methods: Cells were treated with various doses of GE (1, 5, 10, 25, 50, 75, and 100 μM/L at different times (24, 48, and 72 h and the MTT assay was commonly used. Furthermore, cells were treated with single dose of GE (25 μM at different times and flow cytometry was performed. Results: GE inhibited the growth of liver cancer cells significantly with a time- and dose-dependent manner. The percentage of living cells in GE treatment groups with a concentration of 25 μM at different times were 53, 48 and 47%, respectively (P < 0.001. Result of flow cytometry demonstrated that GE at a 25 μM concentration induces apoptosis significantly in a time-dependent manner. The percentage of apoptotic cells at different times were 44, 56, and 60%, respectively (P < 0.001. Conclusions: GE can significantly inhibit the growth of HCC cells and plays a significant role in apoptosis of this cell line.

  20. Institutional advantage

    NARCIS (Netherlands)

    Martin, Xavier

    Is there such a thing as institutional advantage—and what does it mean for the study of corporate competitive advantage? In this article, I develop the concept of institutional competitive advantage, as distinct from plain competitive advantage and from comparative institutional advantage. I first