WorldWideScience

Sample records for construction and maintenance

  1. Construction and maintenance of underground mine roads

    Energy Technology Data Exchange (ETDEWEB)

    Logan, A.S.; Seedsman, R.W. [Coffey Partners International Pty. Ltd. (Australia)

    1995-12-31

    Good roads are essential in moving men and materials to and from the underground workplace. An underground coal industry funded project was recently completed on underground mine road construction and maintenance. This paper discusses practical approaches to construction and maintenance of underground mine roads using transferable civil technologies and innovative techniques. Mine pavements are generally low-cost (relative to civil roads), constructed to varying standards using locally available materials to best meet the mobility needs of the mine. Performance of pavements is thus largely dependent on the environmental conditions, quality of the available road making materials, maintenance policies and available resources. This paper explains the causes of bad roads in various underground environments. It details available management strategies, construction and water control techniques, road maintenance and vehicle considerations. It concludes that the trend to larger rubber tires mining equipment needs to be matched with construction and maintenance of high quality road surfaces. For large operations, the total cost due to poor roads may equate to in excess of $A1 million per annum. The strategies outlined in this paper provide the basis for construction and maintenance of underground mine roads to help achieve desired production targets. (author). 2 tabs., 4 figs., 7 refs.

  2. Engineering and Design. Design, Construction, and Maintenance of Relief Wells

    National Research Council Canada - National Science Library

    1992-01-01

    The objective of this manual is to provide guidance and information on the design, construction, and maintenance of pressure relief wells installed for the purpose of relieving subsurface hydrostatic...

  3. Implementation of sustainability in bridge design, construction and maintenance.

    Science.gov (United States)

    2012-12-01

    The focus of this research is to develop a framework for more sustainable design and construction : processes for new bridges, and sustainable maintenance practices for existing bridges. The framework : includes a green rating system for bridges. The...

  4. Traffic incident management in construction and maintenance work zones.

    Science.gov (United States)

    2009-01-01

    In 2004, the Federal Highway Administration published updated rules governing work zone safety and mobility; all highway construction and maintenance projects using federal-aid highway funds are required to develop transportation management plans (TM...

  5. Design, construction and maintenance of greenhouse structures

    NARCIS (Netherlands)

    Waaijenberg, D.

    2006-01-01

    In this paper a review is given about the effects of different parts of the solar radiation and its importance for plant growth in greenhouses. Besides the most important visible part of the light (PAR), ultraviolet (UV), near infrared (NIR) and far infrared (FIR) are discussed. The strength of the

  6. Construction, Maintenance and Demolition of Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Smet, Camiel de [Hilti Corporation, P.O. Box 333, FL-9494 Schaan (Liechtenstein)

    2008-07-01

    Hilti is your reliable partner in nuclear power plant construction, maintenance and demolition worldwide. Professional advice and innovative solutions for virtually every phase of construction and supply technologically leading products and systems to increase your productivity and help to create and maintain safe and lasting plants is offered. The solutions for nuclear power plants construction, maintenance and demolition have been employed with great success in many different countries on a wide variety of projects due in no small way to their worldwide availability. An unbroken, international exchange of experience upholds a permanent innovation process. This assures our customers that they always receive products on the very latest technological standard. This paper is not intended to cover all topics related to nuclear power plants. The idea is more to give a kind of an overview. The paper covers briefly the following topics: safety (corrosion and fire), fastenings, measuring and finally decommissioning of nuclear power plants. (author)

  7. Construction, Maintenance and Demolition of Nuclear Power Plants

    International Nuclear Information System (INIS)

    Smet, Camiel de

    2008-01-01

    Hilti is your reliable partner in nuclear power plant construction, maintenance and demolition worldwide. Professional advice and innovative solutions for virtually every phase of construction and supply technologically leading products and systems to increase your productivity and help to create and maintain safe and lasting plants is offered. The solutions for nuclear power plants construction, maintenance and demolition have been employed with great success in many different countries on a wide variety of projects due in no small way to their worldwide availability. An unbroken, international exchange of experience upholds a permanent innovation process. This assures our customers that they always receive products on the very latest technological standard. This paper is not intended to cover all topics related to nuclear power plants. The idea is more to give a kind of an overview. The paper covers briefly the following topics: safety (corrosion and fire), fastenings, measuring and finally decommissioning of nuclear power plants. (author)

  8. Sustainable construction building performance simulation and asset and maintenance management

    CERN Document Server

    2016-01-01

    This book presents a collection of recent research works that highlight best practice solutions, case studies and practical advice on the implementation of sustainable construction techniques. It includes a set of new developments in the field of building performance simulation, building sustainability assessment, sustainable management, asset and maintenance management and service-life prediction. Accordingly, the book will appeal to a broad readership of professionals, scientists, students, practitioners, lecturers and other interested parties.

  9. Ground-water problems in highway construction and maintenance

    Science.gov (United States)

    Rasmussen, W.C.; Haigler, L.B.

    1953-01-01

    This report discusses the occurrence of ground water in relation to certain problems in highway construction and maintenance. These problems are: the subdrainage of roads; quicksand; the arrest of soil creep in road cuts; the construction of lower and larger culverts necessitated by the farm-drainage program; the prevention of failure of bridge abutments and retaining walls; and the water-cement ratio of sub-water-table concrete. Although the highway problems and suggested solutions are of general interest, they are considered with special reference to the State of Delaware, in relation to the geology of that State. The new technique of soil stabilization by electroosmosis is reviewed in the hope that it might find application here in road work and pile setting, field application by the Germans and Russians is reviewed.

  10. 30 CFR 57.8531 - Construction and maintenance of ventilation doors.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Construction and maintenance of ventilation... NONMETAL MINES Ventilation Underground Only § 57.8531 Construction and maintenance of ventilation doors... constructed of wood; (c) Maintained in good condition; (d) Self-closing, if manually operated; and (e...

  11. Accident characteristics at construction and maintenance zones in urban areas.

    Science.gov (United States)

    1990-01-01

    Work zone safety is currently a major concern to transportation and highway engineers because of the relatively higher rates of accidents in these areas. There is a strong indication that during the next decade, emphasis will be placed on maintenance...

  12. Radio Frequency Identification in Construction Operation and Maintenance

    DEFF Research Database (Denmark)

    Sørensen, Kristian Birch; Christiansson, Per; Svidt, Kjeld

    2008-01-01

    As early as in 1995 it was stated that automatic identification of objects using RFID was a promising technology for the construction industry. However, 13 years later the applications of RFID in the construction industry are rare and mostly used in prototype projects or used for theft prevention...

  13. 26 CFR 1.528-2 - Organized and operated to provide for the acquisition, construction, management, maintenance and...

    Science.gov (United States)

    2010-04-01

    ... acquisition, construction, management, maintenance and care of association property. 1.528-2 Section 1.528-2... acquisition, construction, management, maintenance and care of association property. (a) Organized and... association are the acquisition, construction, management, maintenance, and care of association property. In...

  14. Registration-analytical maintenance and methodological features of construction of the financial account

    OpenAIRE

    Kraevskyy, V.

    2009-01-01

    In article registration-analytical maintenance and methodological features of construction of the financial account is considered. Financial account, net lending, net borrowing, financial assets, system of the national accounts.

  15. Safer construction and maintenance practices to minimize potential liability by counties from accidents.

    Science.gov (United States)

    1979-09-01

    Tort claims resulting from alleged highway defects have introduced : an additional element in the planning, design, construction, and maintenance : of highways. A survey of county governments in Iowa was undertaken : in order to quantify the magnitud...

  16. State-of-the-practice : evaluation of sediment basin design, construction, maintenance, and inspection procedures.

    Science.gov (United States)

    2012-08-01

    The following document is the summary of results from a survey that was conducted to evaluate : the state-of-the-practice for sediment basin design, construction, maintenance, and inspection : procedures by State Highway Agencies (SHAs) across the na...

  17. Innovative Robot Archetypes for In-Space Construction and Maintenance

    Science.gov (United States)

    Rehnmark, Fredrik; Ambrose, Robert O.; Kennedy, Brett; Diftler, Myron; Mehling Joshua; Brigwater, Lyndon; Radford, Nicolaus; Goza, S. Michael; Culbert, Christopher

    2005-01-01

    The space environment presents unique challenges and opportunities in the assembly, inspection and maintenance of orbital and transit spaceflight systems. While conventional Extra-Vehicular Activity (EVA) technology, out of necessity, addresses each of the challenges, relatively few of the opportunities have been exploited due to crew safety and reliability considerations. Extra-Vehicular Robotics (EVR) is one of the least-explored design spaces but offers many exciting innovations transcending the crane-like Space Shuttle and International Space Station Remote Manipulator System (RMS) robots used for berthing, coarse positioning and stabilization. Microgravity environments can support new robotic archetypes with locomotion and manipulation capabilities analogous to undersea creatures. Such diversification could enable the next generation of space science platforms and vehicles that are too large and fragile to launch and deploy as self-contained payloads. Sinuous manipulators for minimally invasive inspection and repair in confined spaces, soft-stepping climbers with expansive leg reach envelopes and free-flying nanosatellite cameras can access EVA worksites generally not accessible to humans in spacesuits. These and other novel robotic archetypes are presented along with functionality concepts

  18. Design and construction of an in-pipe robot for inspection and maintenance

    KAUST Repository

    Sibai, Fadi N.

    2012-12-01

    Inspection and maintenance of aging pipelines is crucial to the reliable and continued distribution of hydrocarbons. In this paper, we describe the design and construction of a robotic platform for inspection and minor maintenance of pipelines. The 7.5 kg robotic platform was demonstrated to move straight inside 12″ to 16″ diameter pipes in a forward or backward direction, and either horizontally or vertically. The experimental robotic platform has three sets of two wheels, and three driving motors. The equations governing the mechanical frame\\'s component sizes are presented and the robotic frame component dimensions derived. The paper also discusses the construction and testing of the robot. Future work includes adding sensors, controls for turning, a microcontroller board, and a robotic arm for performing maintenance tasks. © 2012 IEEE.

  19. Design and construction of an in-pipe robot for inspection and maintenance

    KAUST Repository

    Sibai, Fadi N.; Sayegh, Amer Ahmed; Al-Taie, Ihsan

    2012-01-01

    Inspection and maintenance of aging pipelines is crucial to the reliable and continued distribution of hydrocarbons. In this paper, we describe the design and construction of a robotic platform for inspection and minor maintenance of pipelines. The 7.5 kg robotic platform was demonstrated to move straight inside 12″ to 16″ diameter pipes in a forward or backward direction, and either horizontally or vertically. The experimental robotic platform has three sets of two wheels, and three driving motors. The equations governing the mechanical frame's component sizes are presented and the robotic frame component dimensions derived. The paper also discusses the construction and testing of the robot. Future work includes adding sensors, controls for turning, a microcontroller board, and a robotic arm for performing maintenance tasks. © 2012 IEEE.

  20. Costs of construction, operation and maintenance of nuclear power plants - determinant factors

    International Nuclear Information System (INIS)

    Silva, R.A. da

    1981-01-01

    A study about the construction costs of the Angra-1 nuclear power plant, including direct costs, equipment costs, installation and indirect costs such as: engineering, job-training and administration is presented. The operation and maintenance costs of the Angra-1 nuclear power plant and costs of energy generation are still studied. (E.G.) [pt

  1. Careers in Construction, Building Maintenance and Allied Occupations. Junior High School. Course Outline.

    Science.gov (United States)

    Dade County Public Schools, Miami, FL. Office of Vocational and Adult Education.

    The guide was prepared to assist student emploration in the fields of construction and building maintenance and as preparation for further specialized training. The course was prepared for quinmester use and includes a series of manipulative job assignments within a laboratory equipped to simulate the actual job atmosphere found in the…

  2. PERFORMANCE-BASED CONTRACTING IN CONSTRUCTION PHASE AND MAINTENANCE PHASE OF PAVEMENT

    Science.gov (United States)

    Yoshida, Takeshi

    Performance-based contracting for pavement in Japan started as performance warranties in construction phase, in 1999. Recently, road agencies have recognized the applicability of this type of contracting in outsourcing of maintenance activities. The objectives of this study are to clarify the issues of performance specifying in construction phase and maintenance phase of pavement, and to propose measures to be taken. This paper, with the recognition that the life of each pavement depends on performance standards for various attributes, reviews domestic and foreign examples of performance-based contracting. A performance standard based on the average of current practices can enhance product quality and service life with a warranty contract. Repair thresholds and response time for each deficiency should be considered as performance standards in maintenance phase.

  3. 78 FR 5715 - Construction and Maintenance-Culvert Pipe Selection

    Science.gov (United States)

    2013-01-28

    ... Register's home page at: http://www.archives.gov/federal-register and the Government Printing Office's Web... the market had changed to the extent that Appendix A no longer adequately encompassed the universe of...

  4. Construction, Maintenance and Repair as Elements in Rubble Mound Breakwater Design

    DEFF Research Database (Denmark)

    Burcharth, Hans F.; Rietveld, C.F.W.

    Very often rubble mound breakwater designs seem to be a result only of stability considerations corresponding to design wave conditions. Designers tend to put too little emphasis on practical problems related to construction, maintenance and repair. As is discussed in the paper due consideration...... of these problems Ieeds to a more economical design in terms of lower total costs during the structural lifetime....

  5. Profit ability versus construction equipment maintenance

    OpenAIRE

    Clutts, Craig A.

    2010-01-01

    CIVINS (Civilian Institutions) Thesis document Approved for public release ; distribution is unlimited Construction equipment is a high cost of capital investment necessary for the successful existence of a private construction company and essential to the mission success of the Naval Construction Force (NCF). The highest impact cost factor other than the initial purchase investment is the expenses related to maintenance and repair. As the equipment ages, the ownership costs decrease an...

  6. Augmented reality for improved communication of construction and maintenance plans in nuclear power plants

    International Nuclear Information System (INIS)

    Sorensen, Soren S.

    2010-01-01

    The purpose of implementing Augmented Reality, AR, in the planning, construction and maintenance of Nuclear Power Plants is to secure strict control, precise and correct constructions, exact execution of assignments and heightened safety at all levels. Communication of construction plans to ensure precise and correct assembly of structural elements is essential in all building projects. This is especially crucial in the construction of nuclear plants and installation of new components. The current ways in which construction plans are communicated, blueprints, 3D digital models and written descriptions all embody the need for significant levels of abstraction and interpretation, and are thus both difficult to understand and can lead to misinterpretations. A simulation system with full scale three dimensional models experienced in the physical setting where operations are to take place would bring operators closer to the real life assignments. Augmented Reality is a visualization technology that provides this motivation. (author)

  7. Using Project Performance to Measure Effectiveness of Quality Management System Maintenance and Practices in Construction Industry

    OpenAIRE

    Tiong Kung Leong; Norhayati Zakuan; Muhamad Zameri Mat Saman; Mohd. Shoki Md. Ariff; Choy Soon Tan

    2014-01-01

    This paper proposed seven existing and new performance indicators to measure the effectiveness of quality management system (QMS) maintenance and practices in construction industry. This research is carried out with a questionnaire based on QMS variables which are extracted from literature review and project performance indicators which are established from project management's theory. Data collected was analyzed using correlation and regression analysis. The findings indicate that client sat...

  8. A cost summary applicable to seismic construction and maintenance of nuclear safety related piping

    International Nuclear Information System (INIS)

    Stevenson, J.D.

    1995-01-01

    This paper presents a summary of costs applicable to nuclear power plant piping for an earthquake defined as 0.2 SSE-PGA as a function of three eras of initial construction: 1967--1974, 1974--1981 and 1981--1990. Costs have been presented for both new construction and maintenance in operating plants using both the original PSAR-FSAR design criteria and current SRP requirements. It is recommended that the cost information contained in this report be considered in evaluating the cost benefit relationships associated with current and proposed future changes in seismic design procedures applicable to safety-related piping systems

  9. Construction of 'Monju' maintenance and waste disposal building by Shimizu Corporation

    International Nuclear Information System (INIS)

    Baba, Ikuo

    1994-01-01

    The scale of the building, the use, the outline of construction works and the construction processes of the maintenance and waste disposal building among the facilities of the fast breeder prototype reactor 'Monju' are described, and the construction technology which was adopted for ensuring the quality, the construction period and the safety, the state of carrying out quality assurance activity and so on are reported. Moreover, the building works and the electricity works are mentioned, and the examples that were devised on building side for smoothly advancing later electricity side works are introduced, further, as a feature work, the work of erecting the steel framework that constitutes the large space for repair area is explained. The arrangement of buildings, and the scale and the structure of the maintenance and waste disposal building which is a reinforced concrete building, partly steel framework reinforced concrete building, with four stories above ground and four stories underground and the total floor area of 14,354m 2 are described. Liquid waste treatment and washing facilities are in underground, and repair area, solid waste treatment and electric and air conditioning facilities are on above ground floors. (K.I.)

  10. TOPS On-Line: Automating the Construction and Maintenance of HTML Pages

    Science.gov (United States)

    Jones, Kennie H.

    1994-01-01

    After the Technology Opportunities Showcase (TOPS), in October, 1993, Langley Research Center's (LaRC) Information Systems Division (ISD) accepted the challenge to preserve the investment in information assembled in the TOPS exhibits by establishing a data base. Following the lead of several people at LaRC and others around the world, the HyperText Transport Protocol (HTTP) server and Mosaic were the obvious tools of choice for implementation. Initially, some TOPS exhibitors began the conventional approach of constructing HyperText Markup Language (HTML) pages of their exhibits as input to Mosaic. Considering the number of pages to construct, a better approach was conceived that would automate the construction of pages. This approach allowed completion of the data base construction in a shorter period of time using fewer resources than would have been possible with the conventional approach. It also provided flexibility for the maintenance and enhancement of the data base. Since that time, this approach has been used to automate construction of other HTML data bases. Through these experiences, it is concluded that the most effective use of the HTTP/Mosaic technology will require better tools and techniques for creating, maintaining and managing the HTML pages. The development and use of these tools and techniques are the subject of this document.

  11. CONSIDERATIONS UPON DESIGNING MODULAR CONSTRUCTIONS FOR IMPROVING THE PRODUCTS ASSEMBLING, MAINTENANCE AND RECYCLING PROCESSES

    Directory of Open Access Journals (Sweden)

    BÂRSAN Lucian

    2015-11-01

    Full Text Available Modular constructions are frequently used in industry because of their multiple advantages. Used from the antiquity as a measuring system that ensured good proportions for the objects or buildings, the module is used in present industry as a tool for improving the product maintenance, repair, upgrading, and/or recycling. Modular constructions can be assembled and disassembled easily, facilitating the postuse actions like subassemblies reuse, or materials recovering for the recycling process. An important aspect of this paper is that designers should create the modular solution even from the conceptual design stage and build a structure of functions based on well motivated arguments and which can easily be brake out according to technological possibilities, product functioning and assembly solutions.

  12. Advanced boiling water reactor (ABWR). Design, construction, operation and maintenance experience

    International Nuclear Information System (INIS)

    Idesawa, M.

    1998-01-01

    The ABWR has experienced all phases of design, construction, operation and maintenance at Kashiwazaki-Kariwa Nuclear Power Station Units No.6 and 7 and confirmed that originally intended development targets have been achieved with highly satisfactory results. This is the fruit of a project that collected wisdom from various sources under a international cooperative organization, with Tokyo Electric Power Company taking the leading role from the onset. These two units have not only demonstrated that ABWRs have superior performance as the first standard units of advanced light water reactor but also aroused a hope for the big potential advantages that ABWRs can provide us. The ABWR has already been awarded a U.S. standard license for having proved that it can comply with the requirements of international regulatory systems with an ample margin. There are also many construction programs with ABWRs progressing both domestically and abroad, suggesting that it has won recognition as an international standard plant. We will do our utmost to perfect the operation and maintenance records of Kashiwazaki-Kariwa Units No.6 and 7, which is the top runner among ABWRs, and to make known the superiority of this reactor to the world. (J.P.N.)

  13. Mortality of a cohort of road construction and maintenance workers with work disability compensation.

    Science.gov (United States)

    d'Errico, A; Mamo, C; Tomaino, A; Dalmasso, M; Demaria, M; Costa, G

    2002-01-01

    Surveillance systems of occupational mortality are useful tools to identify cases of diseases suspected as occupational and to monitor their occurrence over time, in space and in population subgroups. Many surveillance systems make use of administrative data in which information about occupations and/or economic sectors of the subjects enrolled is reported, such as death certificates, hospital discharge data, census data, tax and pension records, and workers' compensation archives. In the present study we analyzed the mortality of a cohort of road construction and maintenance workers enrolled through the Italian national archive of work disability compensations, also in order to evaluate the possible use of this administrative source to monitor occupational mortality. 8,000 subjects (7,879 males) receiving a disability compensation while working in the "road construction and maintenance" sector were identified from INAIL (National Institute for Insurance of Accidents at Work) archives. Vital status of these subjects was ascertained using the information available in INAIL archives and in the national tax register. For those found to be deceased from INAIL or tax archives, or without any information on vital status, a mail follow-up was started. We considered as observation period the years from 1980 to 1993. A record linkage with the ISTAT (Italian Institute of Statistics) national mortality registry was performed and the cause of death was retrieved for 964 out of 1,259 subjects. The analysis was restricted to males, leaving altogether 863 observed deaths with ascertained cause (84.7% of 1,019 total male deaths). SMR for overall mortality and PMR for specific cause mortality were computed, using the general Italian male population as reference. Overall mortality was significantly reduced (SMR = 79.0; 95% CI = 74.2-84.0). Proportional mortality analysis revealed significant excess risks for all malignant tumours (332 deaths, PMR = 1.08) and for digestive diseases

  14. State waste discharge permit application: Hydrotest, maintenance and construction discharges. Revision 0

    International Nuclear Information System (INIS)

    1995-11-01

    On December 23, 1991, the US DOE< Richland Operation Office (RL) and the Washington State Department of Ecology (Ecology) agreed to adhere to the provisions of the Department of Ecology Consent Order No. DE91NM-177 (216 Consent Order) (Ecology and US DOE 1991). The 216 Consent Order list regulatory milestones for liquid effluent streams at the Hanford Site and requires compliance with the permitting requirements of Washington Administrative Code. Hanford Site liquid effluent streams discharging to the soil column have been categorized on the 216 Consent Order as follows: Phase I Streams; Phase II Streams; Miscellaneous Streams. Phase I and Phase II Streams were initially addressed in two report. Miscellaneous Streams are subject to the requirements of several milestones identified in the 216 Consent Order. This document constitutes the Categorical State Waste Discharge Permit application for hydrotest,maintenance and construction discharges throughout the Hanford Site. This categorical permit application form was prepared and approved by Ecology

  15. Using Project Performance to Measure Effectiveness of Quality Management System Maintenance and Practices in Construction Industry

    Science.gov (United States)

    Leong, Tiong Kung; Ariff, Mohd. Shoki Md.

    2014-01-01

    This paper proposed seven existing and new performance indicators to measure the effectiveness of quality management system (QMS) maintenance and practices in construction industry. This research is carried out with a questionnaire based on QMS variables which are extracted from literature review and project performance indicators which are established from project management's theory. Data collected was analyzed using correlation and regression analysis. The findings indicate that client satisfaction and time variance have positive and significant relationship with QMS while other project performance indicators do not show significant results. Further studies can use the same project performance indicators to study the effectiveness of QMS in different sampling area to improve the generalizability of the findings. PMID:24701182

  16. State waste discharge permit application: Hydrotest, maintenance and construction discharges. Revision 0

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-11-01

    On December 23, 1991, the US DOE< Richland Operation Office (RL) and the Washington State Department of Ecology (Ecology) agreed to adhere to the provisions of the Department of Ecology Consent Order No. DE91NM-177 (216 Consent Order) (Ecology and US DOE 1991). The 216 Consent Order list regulatory milestones for liquid effluent streams at the Hanford Site and requires compliance with the permitting requirements of Washington Administrative Code. Hanford Site liquid effluent streams discharging to the soil column have been categorized on the 216 Consent Order as follows: Phase I Streams; Phase II Streams; Miscellaneous Streams. Phase I and Phase II Streams were initially addressed in two report. Miscellaneous Streams are subject to the requirements of several milestones identified in the 216 Consent Order. This document constitutes the Categorical State Waste Discharge Permit application for hydrotest,maintenance and construction discharges throughout the Hanford Site. This categorical permit application form was prepared and approved by Ecology.

  17. Using Project Performance to Measure Effectiveness of Quality Management System Maintenance and Practices in Construction Industry

    Directory of Open Access Journals (Sweden)

    Tiong Kung Leong

    2014-01-01

    Full Text Available This paper proposed seven existing and new performance indicators to measure the effectiveness of quality management system (QMS maintenance and practices in construction industry. This research is carried out with a questionnaire based on QMS variables which are extracted from literature review and project performance indicators which are established from project management's theory. Data collected was analyzed using correlation and regression analysis. The findings indicate that client satisfaction and time variance have positive and significant relationship with QMS while other project performance indicators do not show significant results. Further studies can use the same project performance indicators to study the effectiveness of QMS in different sampling area to improve the generalizability of the findings.

  18. Using project performance to measure effectiveness of quality management system maintenance and practices in construction industry.

    Science.gov (United States)

    Leong, Tiong Kung; Zakuan, Norhayati; Mat Saman, Muhamad Zameri; Ariff, Mohd Shoki Md; Tan, Choy Soon

    2014-01-01

    This paper proposed seven existing and new performance indicators to measure the effectiveness of quality management system (QMS) maintenance and practices in construction industry. This research is carried out with a questionnaire based on QMS variables which are extracted from literature review and project performance indicators which are established from project management's theory. Data collected was analyzed using correlation and regression analysis. The findings indicate that client satisfaction and time variance have positive and significant relationship with QMS while other project performance indicators do not show significant results. Further studies can use the same project performance indicators to study the effectiveness of QMS in different sampling area to improve the generalizability of the findings.

  19. Construction and maintenance of the Ganges-Brahmaputra-Meghna delta: linking process, morphology, and stratigraphy.

    Science.gov (United States)

    Wilson, Carol A; Goodbred, Steven L

    2015-01-01

    We present a review of the processes, morphology, and stratigraphy of the Ganges-Brahmaputra-Meghna delta (GBMD), including insights gained from detailed elevation data. The review shows that the GBMD is best characterized as a composite system, with different regions having morphologic and stratigraphic attributes of an upland fluvial fan delta; a lowland, backwater-reach delta; a downdrift tidal delta plain; and an offshore subaqueous-delta clinoform. These distinct areas of upland and lowland fluvial reaches and tidal dominance vary in time and space, and we distinguish late-Holocene phases of delta construction, maintenance, and decline similar to delta-lobe cycling in other systems. The overall stability of the GBMD landform, relative to many deltas, reflects the efficient, widespread dispersal of sediment by the large monsoon discharge and high-energy tides that affect this region. However, we do identify portions of the delta that are in decline and losing elevation relative to sea level owing to insufficient sediment delivery. These areas, some of which are well inland of the coast, represent those most at risk to the continued effect of sea-level rise.

  20. PipelineDog: a simple and flexible graphic pipeline construction and maintenance tool.

    Science.gov (United States)

    Zhou, Anbo; Zhang, Yeting; Sun, Yazhou; Xing, Jinchuan

    2018-05-01

    Analysis pipelines are an essential part of bioinformatics research, and ad hoc pipelines are frequently created by researchers for prototyping and proof-of-concept purposes. However, most existing pipeline management system or workflow engines are too complex for rapid prototyping or learning the pipeline concept. A lightweight, user-friendly and flexible solution is thus desirable. In this study, we developed a new pipeline construction and maintenance tool, PipelineDog. This is a web-based integrated development environment with a modern web graphical user interface. It offers cross-platform compatibility, project management capabilities, code formatting and error checking functions and an online repository. It uses an easy-to-read/write script system that encourages code reuse. With the online repository, it also encourages sharing of pipelines, which enhances analysis reproducibility and accountability. For most users, PipelineDog requires no software installation. Overall, this web application provides a way to rapidly create and easily manage pipelines. PipelineDog web app is freely available at http://web.pipeline.dog. The command line version is available at http://www.npmjs.com/package/pipelinedog and online repository at http://repo.pipeline.dog. ysun@kean.edu or xing@biology.rutgers.edu or ysun@diagnoa.com. Supplementary data are available at Bioinformatics online.

  1. 25 CFR 502.22 - Construction and maintenance of the gaming facility, and the operation of that gaming is...

    Science.gov (United States)

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false Construction and maintenance of the gaming facility, and the operation of that gaming is conducted in a manner which adequately protects the environment and the public health and safety. 502.22 Section 502.22 Indians NATIONAL INDIAN GAMING COMMISSION...

  2. Construction of a test platform for Test Blanket Module (TBM) systems integration and maintenance in ITER Port Cell #16

    Energy Technology Data Exchange (ETDEWEB)

    Vála, Ladislav, E-mail: ladislav.vala@cvrez.cz [Centrum výzkumu Řež, Hlavní 130, 250 68 Husinec-Řež (Czech Republic); Reungoat, Mathieu, E-mail: mathieu.reungoat@cvrez.cz [Centrum výzkumu Řež, Hlavní 130, 250 68 Husinec-Řež (Czech Republic); Vician, Martin [Centrum výzkumu Řež, Hlavní 130, 250 68 Husinec-Řež (Czech Republic); Poitevin, Yves; Ricapito, Italo; Zmitko, Milan; Panayotov, Dobromir [Fusion for Energy, Josep Pla 2, Torres Diagonal Litoral B3, 08019 Barcelona (Spain)

    2015-10-15

    Highlights: • A non-nuclear, full size facility – TBM platform – is under construction in CVR. • It is designed for tests, optimization and validation of TBS maintenance operations. • It will allow testing and validation of specific maintenance tools and RH equipment. • It reproduces ITER Port Cell #16, as well as the TBS interfaces and main equipment. • The TBM platform will be available for full operation in the first half of 2016. - Abstract: This paper describes a project of a non-nuclear, 1:1 scale testing platform dedicated to tests, optimization and validation of integration and maintenance operations for the European TBM systems in the ITER Port Cell #16. This TBM platform is currently under construction in Centrum výzkumu Řež, Czech Republic. The facility is realized within the scope of the SUSEN project and its full operation is foreseen in the first half of 2016.

  3. Predicting maintenance of attendance at walking groups: testing constructs from three leading maintenance theories.

    Science.gov (United States)

    Kassavou, Aikaterini; Turner, Andrew; Hamborg, Thomas; French, David P

    2014-07-01

    Little is known about the processes and factors that account for maintenance, with several theories existing that have not been subject to many empirical tests. The aim of this study was to test how well theoretical constructs derived from the Health Action Process Approach, Rothman's theory of maintenance, and Verplanken's approach to habitual behavior predicted maintenance of attendance at walking groups. 114 participants, who had already attended walking groups in the community for at least 3 months, completed a questionnaire assessing theoretical constructs regarding maintenance. An objective assessment of attendance over the subsequent 3 months was gained. Multilevel modeling was used to predict maintenance, controlling for clustering within walking groups. Recovery self-efficacy predicted maintenance, even after accounting for clustering. Satisfaction with social outcomes, satisfaction with health outcomes, and overall satisfaction predicted maintenance, but only satisfaction with health outcomes significantly predicted maintenance after accounting for clustering. Self-reported habitual behavior did not predict maintenance despite mean previous attendance being 20.7 months. Recovery self-efficacy, and satisfaction with health outcomes of walking group attendance appeared to be important for objectively measured maintenance, whereas self-reported habit appeared not to be important for maintenance at walking groups. The findings suggest that there is a need for intervention studies to boost recovery self-efficacy and satisfaction with outcomes of walking group attendance, to assess impact on maintenance.

  4. Construction of the monitoring, processing and logging systems supporting for management, operation and maintenance of the Dalat reactor control system

    International Nuclear Information System (INIS)

    Trinh Dinh Hai; Nguyen Thanh Cuong; Huynh Ton Nghiem; Phan Quoc Minh; Nguyen Duc Tuan; Nguyen Nhi Dien

    2004-01-01

    From 1/2002 to 12/2003, we implemented successfully a project, entitled 'Construction of the monitoring, processing and logging systems supporting for management, operation and maintenance of the Dalat reactor control system' under the assistance of the Ministry of Science and Technology. Its main results such as Testing Apparatus based on microcontroller for all functional boards of the Control Logic System of the Reactor Control System (RCS). Technical support CD - ROM for Process Instrumentation System, software for logging automatically information from important systems of the RCS through LAN, program for failure management of Process Instrumentation System have been playing an important role for observation, operation support, maintenance of the RCS. Through this project, the implementation group has grown up rapidly. The control and instrumentation group has been provided with some modern equipment, electronic components, and materials for maintenance work and research development in the years to come. This paper presents typical results and discussions. (author)

  5. Design and construction of demineralized water production and maintenance system for RA-O nuclear reactor

    International Nuclear Information System (INIS)

    Rumis, D.; Martin, H.R.

    1990-01-01

    The normal operation of zero power RA-O Nuclear Reactor requires a production and maintenance of demineralized water system. This system was designed and built-up during the works for actualization, upgrading and new start up at Cordoba National University of this facility. This paper comments the relevant aspects about the didactical purpose of that system and the details considered for training and practices with it. Similarly, considerations about solids wastes and effluents treatment are discussed. (Author)

  6. Maintenance management balancing performance maintenance and cost balance at reinforced concrete constructions of the fossil-fuel and nuclear power stations

    International Nuclear Information System (INIS)

    Ito, Hiroshi; Benno, Hiroshi; Ozaki, Mitsuhiro

    2003-01-01

    Life elongation of concrete constructions (CCs) is a very important needs for supporting future safe supply of electric power. However, some CCs constructed and used for a long term at fossil-fuel and nuclear power stations had reduction of their required performance by deterioration based on environmental and using conditions represented by salt-damage. As such constructions are anxious to increase in future, it is necessary to keep reliability of their establishments by providing desired rehabilitation to persist supplying effect of their facilities. On the other hand, as it is also essential to progress keeping and reducing cost of power generation together with development of recent liberalization of electric power, it is an important subject how to keep their performance maintenance and cost balance. Therefore, here were outlined on required performance setting method, inspection method, long-term deterioration forecasting and evaluating methods, selection method of countermeasure scenarios minimizing LCC, inspection period setting method, introduction of database and deterioration forecasting system, and so on, to economically maintain and manage already built reinforced concrete constructions at suitable materials and places to elongate their lives. (G.K.)

  7. Community Building Services Training Program: A Model Training Program to Provide Technical Training for Minority Adults in Construction, Building Maintenance,and Property Management. Final Report.

    Science.gov (United States)

    Community Building Maintenance Corp., Chicago, IL.

    A demonstration program, administered by a community based building maintenance, management, and construction corporation, was developed to provide technical training for minority adults in construction, building maintenance, and property management in the Chicago area. The program was concerned with seeking solutions to the lack of housing, job…

  8. Changing priorities of codes and standards -- quality engineering: Experiences in plant construction, maintenance, and operation

    International Nuclear Information System (INIS)

    Antony, D.D.; Suleski, P.F.; Meier, J.C.

    1994-01-01

    Application of the ASME Code across various fossil and nuclear plants necessitates a Company approach adapted by unique status of each plant. This arises from State Statutes, Federal Regulations and consideration of each plant's as-built history over a broad time frame of design, construction and operation. Additionally, the National Board Inspection Code accompanies Minnesota Statutes for plants owned by Northern States Power Company. This paper addresses some key points on NSP's use of ASME Code as a principal mechanical standard in plant design, construction and operation. A primary resource facilitating review of Code provisions is accurate status on current plant configuration. As plant design changes arise, the Code Edition/Addenda of original construction and installed upgrades or replacements are considered against available options allowed by current standards and dialog with the Jurisdictional Authority. Consistent with the overall goal of safe and reliable plant operation, there are numerous Code details and future needs to be addressed in concert with expected plant economics and planned outages for implementation. The discussion begins in the late 60's with new construction of Monticello and Prairie Island (both nuclear), through Sherburne County Units 1 through 3 (fossil), and their changes, replacements or repairs as operating plants

  9. Environmental Assessment for the Proposed Construction and Operation of New Vehicle Maintenance Facility

    Science.gov (United States)

    2007-08-01

    reasonably foreseeable future actions regardless of what agency (federal or non-federal) or person undertakes such actions” (40 CFR 1508.7). Cumulative... clubhouse /pool and playgrounds. MFH 734,789 and Clughouse 22,500 sf (Under Construction) 70,355 757,298 Yes (05) 05 1500 Army Aviation Support

  10. Operation and maintenance manual for septic holding tank system for project W-519, two double-wide construction support trailers

    International Nuclear Information System (INIS)

    MORTIMER, C.S.

    1999-01-01

    This manual was prepared to provide detailed information for the operation and maintenance of the sanitary wastewater holding system. It sets forth system operation and maintenance as well as failure response procedures

  11. Automation of a Versatile Crane (the LSMS) for Lunar Outpost Construction, Maintenance and Inspection

    Science.gov (United States)

    Doggett, William R.; Roithmayr, Carlos M.; Dorsey, John T.; Jones, Thomas C.; Shen, Haijun; Seywald, Hans; King, Bruce D.; Mikulas, Martin M., Jr.

    2009-01-01

    Devices for lifting, translating and precisely placing payloads are critical for efficient Earth-based construction operations. Both recent and past studies have demonstrated that devices with similar functionality will be needed to support lunar outpost operations. Although several designs have been developed for Earth based applications, these devices lack unique design characteristics necessary for transport to and use on the harsh lunar surface. These design characteristics include: a) lightweight components, b) compact packaging for launch, c) automated deployment, d) simple in-field reconfiguration and repair, and e) support for tele-operated or automated operations. Also, because the cost to transport mass to the lunar surface is very high, the number of devices that can be dedicated to surface operations will be limited. Thus, in contrast to Earth-based construction, where many single-purpose devices dominate a construction site, a lunar outpost will require a limited number of versatile devices that provide operational benefit from initial construction through sustained operations. The first generation test-bed of a new high performance device, the Lunar Surface Manipulation System (LSMS) has been designed, built and field tested. The LSMS has many unique features resulting in a mass efficient solution to payload handling on the lunar surface. Typically, the LSMS device mass is estimated at approximately 3% of the mass of the heaviest payload lifted at the tip, or 1.8 % of the mass of the heaviest mass lifted at the elbow or mid-span of the boom for a high performance variant incorporating advanced structural components. Initial operational capabilities of the LSMS were successfully demonstrated during field tests at Moses Lake, Washington using a tele-operated approach. Joint angle sensors have been developed for the LSMS to improve operator situational awareness. These same sensors provide the necessary information to support fully automated operations

  12. Significant advantages of the safety-first concept in construction, operation, and maintenance of the Westinghosue AP1000 reactor

    International Nuclear Information System (INIS)

    Cummins, E.; Benitz, K.

    2004-01-01

    In June 2003, the U.S. Nuclear Regulatory Commission (USNRC) published a draft opinion about safety of the AP1000 Westinghouse pressurized water reactor with 'passive safety' features. The report constitutes an important milestone in the development of the next generation of safe and cost-efficient nuclear power plants. A new AP1000 can be absolutely competitive with fossil fired power plants and may be able to revive the construction of new nuclear power plants worldwide. The reason for designing the AP1000 were safety considerations. The use of passive safety systems at the same time entails a considerable reduction in the costs of design, maintenance, and operation of an AP1000 plant. Independent experts confirmed that an AP1000 can be erected within three years or even less. The estimated electricity generating costs of an AP1000 plant in the United States amount to US Cent 3.2 to 3.6 per kilowatthour. (orig.)

  13. Environmental impact assessment of wood ash utilization in forest road construction and maintenance--A field study.

    Science.gov (United States)

    Oburger, Eva; Jäger, Anna; Pasch, Alexander; Dellantonio, Alex; Stampfer, Karl; Wenzel, Walter W

    2016-02-15

    The ever increasing use of wood material as fuel for green energy production requires innovative, environmentally safe strategies for recycling of the remaining wood ash. Utilizing wood ash in forest road construction and maintenance to improve mechanical stability has been suggested as a feasible recycling option. To investigate the environmental impact of wood ash application in forest road maintenance, a two-year field experiment was conducted at two Austrian forest sites (Kobernausserwald (KO) (soil pH 5.5) and Weyregg (WE) (pH 7.7)) differing in their soil chemical properties. Two different ashes, one produced by grate incineration (GA) and the other by fluidized bed incineration in a mixture with 15 vol% burnt lime (FBA), were incorporated in repeated road sections at a 15:85% (V/V) ash-to-soil rate. Leaching waters from the road body were collected and analyzed for 32 environmentally relevant parameters over two years. Upon termination of the experiment, sub-road soil samples were collected and analyzed for ash-related changes in soil chemistry. Even though a larger number of parameters was affected by the ash application at the alkaline site (WE), we observed the most pronounced initial increases of pH as well as Al, As, Fe, Mn, Ni, Co, Cu, Mo, and NO2(−) concentrations in leachates beneath GA-treated road bodies at Kobernausserwald due to the lower soil buffer capacity at this site. Despite the observed effects our results indicate that, when specific requirements are met (i.e. appropriate ash quality, sufficient soil buffer capacity below the road body, and single time-point ash incorporation within several decades), wood ash application in forest road construction is generally environmentally acceptable.

  14. Final Environmental Assessment: Construction of Maintenance and Storage Facility, Perimeter Fence Upgrade and Demolition of Three Buildings and Two Structures Gila River Air Force Space Surveillance Station Arizona

    Science.gov (United States)

    2012-11-01

    Estrella mountain range is approximately six miles west of the Installation and the Sacaton mountain range lie approximate- ly six miles to the southeast...Structures 3-4 Figure 5. Geological Map of Gila River AFSSS and Vicinity Sierra Estrella Range Sacaton Range EA — Construct Maintenance & Storage

  15. Application of Mobile Laser Scanning for Lean and Rapid Highway Maintenance and Construction

    Science.gov (United States)

    2015-08-28

    Mobile Terrestrial Laser Scanning (MTLS) is an emerging technology that combines the use of a laser scanner(s), the Global Navigation Satellite System (GNSS), and an Inertial Measurement Unit (IMU) on a vehicle to collect geo-spatial data. The overal...

  16. Waterproofing with polymeric geo synthetic barriers (GBR-P) in the manual for the design, construction, management and maintenance of reservoirs

    International Nuclear Information System (INIS)

    Blanco, M.; Cea, J. C.; Garcia, F.; Sanchez, F. J.; Castillo, F.; Mora, J.; Crespo, M. A.

    2010-01-01

    This article presents a part of Manual for the Design, Construction, Management and Maintenance of Reservoirs relative to waterproofing with Polymeric Geo synthetic Barriers (GBR-P). the nature materials of geo membranes is studied also theirs characteristics and specifications. (Author) 26 refs.

  17. Relating the construction and maintenance of maternal ill-health in rural Indonesia

    Directory of Open Access Journals (Sweden)

    Lucia D'Ambruoso

    2012-08-01

    Full Text Available Estimates suggest that over 350,000 deaths and more than 20 million severe disabilities result from the complications of pregnancy, childbirth or its management each year. Death and disability occur predominately among disadvantaged women in resource-poor settings and are largely preventable with adequate delivery care. This paper presents the substantive findings and policy implications from a programme of PhD research, of which the overarching objective was to assess quality of, and access to, care in obstetric emergencies. Three critical incident audits were conducted in two rural districts on Java, Indonesia: a confidential enquiry, a verbal autopsy survey, and a community-based review. The studies examined cases of maternal mortality and severe morbidity from the perspectives of local service users and health providers. A range of inter-related determining factors was identified. When unexpected delivery complications occurred, women and families were often uninformed, unprepared, found care unavailable, unaffordable, and many relied on traditional providers. Midwives in villages made important contributions by stabilising women and facilitating referrals but were often scarce in remote areas and lacked sufficient clinical competencies and payment incentives to treat the poor. Emergency transport was often unavailable and private transport was unreliable and incurred costs. In facilities, there was a reluctance to admit poorer women and those accepted were often admitted to ill-equipped, under-staffed wards. As a result, referrals between hospitals were also common. Otherwise, social health insurance, designed to reduce financial barriers, was particularly problematic, constraining quality and access within and outside facilities. Health workers and service users provided rich and explicit assessments of care and outcomes. These were used to develop a conceptual model in which quality and access are conceived of as social processes

  18. 32 CFR 553.13 - Standards of construction, maintenance, and operations.

    Science.gov (United States)

    2010-07-01

    ... considered in relation to budgetary reviews within the Department of the Army: (a) As permanent national...) Accomodations and services provided to the next of kin of the honored dead and to the general public will be of...

  19. Construction of Graphic Symbol Sequences by Preschool-Aged Children: Learning, Training, and Maintenance

    Science.gov (United States)

    Poupart, Annick; Trudeau, Natacha; Sutton, Ann

    2013-01-01

    The use of augmentative and alternative communication systems based on graphic symbols requires children to learn to combine symbols to convey utterances. The current study investigated how children without disabilities aged 4 to 6 years (n = 74) performed on a simple sentence (subject-verb and subject-verb-object) transposition task (i.e., spoken…

  20. Empowering markets?: The construction and maintenance of a deregulated market for electricity in Norway

    Energy Technology Data Exchange (ETDEWEB)

    Karlstrom, Henrik

    2012-07-01

    Contrary to some claims, deregulation is not just a technical affair, but encapsulates a range of political and social changes to a system. The four papers that comprise this thesis explore some of these changes empirically through interviews, reading of policy documents and public discourse as well as a large electricity user survey in order to capture as much as possible of the affected surrounding areas of deregulation. Theoretically, it debates some notions of how individuals are affected by and supposed to react to the emergence of a new market in addition to the question of how important scientific theory and advice is to real-life policies. While there are a myriad of ways of presenting this quite diverse material, I have chosen to frame it by highlighting three themes: the professional background of the people implementing deregulation, the changes in expectation of how users of electricity should behave and the uncertainty that arises when there are problems in a system that is supposed to work without regulation. The first of these themes, dealt with in the first paper presented, is in line with classical political science and institutional sociology. In order to understand how policy comes about it is not enough to just study the documents that are passed in parliament - one must also look at who is passing them, who drafted them and who is responsible for implementing the policies contained within them. Often, professional interests or specific institutional arrangements can impact the end results in otherwise transparent procedures. The second theme deals with the configuration of users of electricity. A tenet of neoclassical economic thought that has been much criticised is the idea of the rational, utility maximising actor who carefully calculates returns before taking any action. While serious economic theory is beginning to move away from this vision of human action, there is no denying that market liberalism relies on the considered choice of

  1. Construction and Maintenance of Classroom Aquaria. Marine Science Curriculum Aid No. 2.

    Science.gov (United States)

    Lee, Richard S.

    This manual introduces teachers to the biological systems at work in a marine aquarium. It provides guidance in selection of the tanks, specifically discussing the effect of capacity on the well-being of the occupants. It guides the teacher in setting up aeration, filtering, lighting, and temperature control for the aquarium. It also advises on…

  2. 75 FR 48408 - Issuance of a Presidential Permit Authorizing the Construction, Operation, and Maintenance of the...

    Science.gov (United States)

    2010-08-10

    ... mail at Office of Mexican Affairs--Room 3909, Department of State, 2201 C St., NW., Washington, DC... Secretary's delegate, the United States shall have the right to enter upon and take possession of any of the... control to the permittee. In the event that the United States shall exercise such right, it shall pay to...

  3. An Approach for Measuring Reductions in Operations, Maintenance, and Energy Costs: Baseline Measures of Construction Industry Practices for the National Construction Goals.

    Science.gov (United States)

    Chapman, Robert E.; Rennison, Roderick

    The Construction and Building Subcommittee of the National Science and Technology Council (NSTC) has established seven National Construction Goals for the construction industry and is developing baseline measures for current practices and progress with respect to each goal. This document provides a detailed set of baseline measures for the NSTC…

  4. Extension of the maintenance cycle of HEPA filters by optimization of the technical characteristics of filters and their construction

    International Nuclear Information System (INIS)

    Bella, H.; Stiehl, H.H.; Sinhuber, D.

    1977-01-01

    The knowledge of the parameters of HEPA filters used at present in nuclear plants allows optimization of such filters with respect to flow rate, pressure drop and service life. The application of optimizing new types of HEPA filters of improved performance is reported. The calculated results were checked experimentally. The use of HEPA filters optimized with respect to dust capacity and service life, and the effects of this new type of filter on the reduction of operating and maintenance costs are discussed

  5. Preventive maintenance and reliability-centered maintenance

    International Nuclear Information System (INIS)

    Anderson, J.G.

    1989-01-01

    In the recent past, the primary function of the preventive maintenance program at a nuclear power plant was to maintain the operability and reliability of the plant. Reducing overall maintenance costs by performing effective preventive maintenance, instead of more costly and disruptive corrective maintenance, instead of more costly and disruptive corrective maintenance, was a secondary consideration. In today's operating environment, the preventive maintenance program must meet the test of cost-effectiveness as well as many new standards for performance that are being required by rate regulators. The preventive maintenance program must be able to withstand the challenge of independent audit to a new standard of technical adequacy and compliance with recommendations from component vendors. In this new environment, the standard that is being applied at the San Onofre nuclear generating station (SONGS) is that the preventive maintenance program must meet the test of cost-effectiveness, improve equipment performance, support increased plant availability, and (a) literally implement the recommendations of the vendor, (b) provide other compensation for the vendor recommendation, or (c) provide technical justification for the deviation. The subject of this paper is the way that reliability-centered maintenance (RCM) is helping SONGS meet these challenges

  6. Nuclear maintenance and management system

    International Nuclear Information System (INIS)

    Yamaji, Yoshihiro; Abe, Norihiko

    2000-01-01

    The Mitsubishi Electric Co., Ltd. has developed to introduce various computer systems for desk-top business assistance in a power plant such as system isolation assisting system, operation parameter management system, and so on under aiming at business effectiveness since these ten and some years. Recently, by further elapsed years of the plants when required for further cost reduction and together with change of business environment represented by preparation of individual personal computer, further effectiveness, preparation of the business environment, and upgrading of maintenance in power plant business have been required. Among such background, she has carried out various proposals and developments on construction of a maintenance and management system integrated the business assistant know-hows and the plant know-hows both accumulated previously. They are composed of three main points on rationalization of business management and document management in the further effectiveness, preparation of business environment, TBM maintenance, introduction of CBM maintenance and introduction of maintenance assistance in upgrading of maintenance. Here was introduced on system concepts aiming at the further effectiveness of the nuclear power plant business, preparation of business environment, upgrading of maintenance and maintenance, and so on, at a background of environment around maintenance business in the nuclear power plants (cost-down, highly elapsed year of the plant, change of business environment). (G.K)

  7. Carbon footprint comparison of innovative techniques in the construction and maintenance of road infrastructure in The Netherlands

    NARCIS (Netherlands)

    Keijzer, E.E.; Leegwater, G.A.; Vos-Effting, S.E. de; Wit, M.S. de

    2015-01-01

    The ambition of European countries to reduce their national greenhouse gas emissions, has been translated in the Netherlands in green procurement policy of the national road administration. An increasing amount of innovative techniques and approaches in road infrastructure construction and

  8. Model of a Nuclear Security Naval Agency for radiation control of the Industrial Complex of of Submarine Construction and Maintenance Ship with Nuclear Propulsion

    International Nuclear Information System (INIS)

    Lins Junior, Amilton de Sousa

    2017-01-01

    Due to the construction, by Brazilian Navy, of a Submarine Construction and Maintenance Ship with Nuclear Propulsion, where, among other activities, the commissioning and exchange of the fuel elements of the reactor in the future Nuclear Submarine, and of a Naval Base where the Nuclear Submarine and the Conventional Submarines, it is necessary the establishment of a Nuclear Security Naval Agency to monitor activities involving ionizing radiation sources and nuclear materials aimed at the radiological protection of exposed occupationally individuals (IOE), the general public and the environment. It should be noted that nuclear and radioactive material will be present only in a part of the yard called Radiological Complex. Therefore, the development of a structure for the control of the Radiological Complex is fundamental, considering that the future licensing process will be unprecedented in Brazil and will face several difficulties. This work presents a model of a structure for the radiological control of the industrial complex for the construction and maintenance of the submarine with nuclear propulsion, as well as the fundamental concepts of the activities, such as inspection, regulations and authorizations, to be carried out by the various component sectors of the Nuclear Security Naval Agency. (author)

  9. Suncor maintenance and reliability

    Energy Technology Data Exchange (ETDEWEB)

    Little, S. [Suncor Energy, Calgary, AB (Canada)

    2006-07-01

    Fleet maintenance and reliability at Suncor Energy was discussed in this presentation, with reference to Suncor Energy's primary and support equipment fleets. This paper also discussed Suncor Energy's maintenance and reliability standard involving people, processes and technology. An organizational maturity chart that graphed organizational learning against organizational performance was illustrated. The presentation also reviewed the maintenance and reliability framework; maintenance reliability model; the process overview of the maintenance and reliability standard; a process flow chart of maintenance strategies and programs; and an asset reliability improvement process flow chart. An example of an improvement initiative was included, with reference to a shovel reliability review; a dipper trip reliability investigation; bucket related failures by type and frequency; root cause analysis of the reliability process; and additional actions taken. Last, the presentation provided a graph of the results of the improvement initiative and presented the key lessons learned. tabs., figs.

  10. Software evolution and maintenance

    CERN Document Server

    Tripathy, Priyadarshi

    2014-01-01

    Software Evolution and Maintenance: A Practitioner's Approach is an accessible textbook for students and professionals, which collates the advances in software development and provides the most current models and techniques in maintenance.Explains two maintenance standards: IEEE/EIA 1219 and ISO/IEC14764Discusses several commercial reverse and domain engineering toolkitsSlides for instructors are available onlineInformation is based on the IEEE SWEBOK (Software Engineering Body of Knowledge)

  11. Turbine maintenance and modernization

    Energy Technology Data Exchange (ETDEWEB)

    Unga, E. [Teollisuuden Voima Oy, Olkiluoto (Finland)

    1998-12-31

    The disturbance-free operation of the turbine plant plays an important role in reaching good production results. In the turbine maintenance of the Olkiluoto nuclear power plant the lifetime and efficiency of turbine components and the lifetime costs are taken into account in determining the turbine maintenance and modernization/improvement program. The turbine maintenance program and improvement/modernization measures taken in the plant units are described in this presentation. (orig.)

  12. Turbine maintenance and modernization

    Energy Technology Data Exchange (ETDEWEB)

    Unga, E [Teollisuuden Voima Oy, Olkiluoto (Finland)

    1999-12-31

    The disturbance-free operation of the turbine plant plays an important role in reaching good production results. In the turbine maintenance of the Olkiluoto nuclear power plant the lifetime and efficiency of turbine components and the lifetime costs are taken into account in determining the turbine maintenance and modernization/improvement program. The turbine maintenance program and improvement/modernization measures taken in the plant units are described in this presentation. (orig.)

  13. Speech and language therapists' perspectives of therapeutic alliance construction and maintenance in aphasia rehabilitation post-stroke.

    Science.gov (United States)

    Lawton, Michelle; Sage, Karen; Haddock, Gillian; Conroy, Paul; Serrant, Laura

    2018-05-01

    Therapeutic alliance refers to the interactional and relational processes operating during therapeutic interventions. It has been shown to be a strong determinant of treatment efficacy in psychotherapy, and evidence is emerging from a range of healthcare and medical disciplines to suggest that the construct of therapeutic alliance may in fact be a variable component of treatment outcome, engagement and satisfaction. Although this construct appears to be highly relevant to aphasia rehabilitation, no research to date has attempted to explore this phenomenon and thus consider its potential utility as a mechanism for change. To explore speech and language therapists' perceptions and experiences of developing and maintaining therapeutic alliances in aphasia rehabilitation post-stroke. Twenty-two, in-depth, semi-structured interviews were conducted with speech and language therapists working with people with aphasia post-stroke. Qualitative data were analysed using inductive thematic analysis. Analysis resulted in the emergence of three overarching themes: laying the groundwork; augmenting cohesion; and contextual shapers. Recognizing personhood, developing shared expectations of therapy and establishing therapeutic ownership were central to laying the groundwork for therapeutic delivery. Augmenting cohesion was perceived to be dependent on the therapists' responsiveness and ability to resolve both conflict and resistance, as part of an ongoing active process. These processes were further moulded by contextual shapers such as the patient's family, relational continuity and organizational drivers. The findings suggest that therapists used multiple, complex, relational strategies to establish and manage alliances with people with aphasia, which were reliant on a fluid interplay of verbal and non-verbal skills. The data highlight the need for further training to support therapists to forge purposive alliances. Training should develop: therapeutic reflexivity; inclusivity in

  14. Formation and maintenance of the territorial balance in the conditions of high-rise construction in the city

    Science.gov (United States)

    Kisel, Tatiana

    2018-03-01

    High-rise construction results in the need of planning of infrastructure facilities, taking into account the increase in loading, as high-rise construction allows to place considerably bigger number of residents in the limited territory. For this purpose it is necessary to estimate the required and actual level of providing the population with each particular type of the facilities of social infrastructure. The compliance of required and actual level of providing can be characterized as the territorial balance, while the discrepancy acts as the territorial imbalance. The article is devoted to the development of such instruments of planning of urban development, which will allow to create the qualitative urban environment, founded on the territorial balances. Namely, it is devoted to the calculation of level of providing the population with the facilities of social infrastructure, to the determination of level of the imbalance in absolute and relative units and also to the ranging of imbalances on urgency of their elimination. The size of the imbalance is of great importance for planning and realization of managerial influences from the executive authorities, operating the city development. In order to determine the urgency of realization of actions for the construction of facilities of social infrastructure it is offered to range the imbalances according to their size, having determined the deviation size from balance, which is so insignificant that it does not demand any managerial influences (it can be characterized as balance) and also the groups of the imbalances, differing in urgency of managerial influences, directed to the decrease and elimination of the revealed imbalance.

  15. Carbon footprint of construction, operation and maintenance of waterways and traffic; Merenkulun ja liikenteen hiilijalanjaelki. Osa 1: Merenkulun hiilijalanjaelki, Osa 2: Tie-, rata- ja meriliikenteen hiilijalanjaeljet

    Energy Technology Data Exchange (ETDEWEB)

    Illman, J.; Kumpulainen, A.; Pesola, A.; Vanhanen, J.

    2012-07-01

    In 2010, the Finnish Transport Agency launched a project to study the carbon footprint of the construction, use and maintenance of Finland's transport network infrastructure. This report presents the results of the second phase, where the carbon footprint was calculated for the coastal ports and fairways used for merchant shipping (part 1 of this report). In addition, the carbon footprint of traffic operating on the road and rail networks and on the coastal fairways was calculated (part 2 of this report). The carbon footprints of four Finnish coastal merchant shipping ports and the fairways leading into them were calculated during a 100-year period. Based on these four cases and statistics the rest of the coastal ports were categorised into four groups: passenger ports, unitized cargo ports, bulk ports and liquid bulk ports. Based on this categorisation the carbon footprint for the infrastructure of coastal merchant shipping was estimated. A carbon footprint tool was developed to enable the modelling of the impacts of different port and fairway planning parameters on the life-cycle emissions. The main source of emissions in the selected cases was the energy used during the use phase: the fuel used by the machinery or the electricity consumed during the operation of the port. In the construction of the examined ports and fairways, the materials used, their transportation and installation do not have a significant impact on the life-cycle emissions. The carbon footprint of Finland's coastal merchant shipping ports and fairways (35 ports and 3 230 km of fairways) during the 100-year period was estimated at 150 000 tCO{sub 2}/a. The emissions of ports vary between 1 900-15 000 tCO{sub 2}/a. The largest sources of emissions do not always originate from the use phase as in the selected cases. The emissions of construction and maintenance can be larger than of the use phase in ports that occupy a large area of land in relation to the amount of traffic flowing

  16. Opportune maintenance and predictive maintenance decision support

    OpenAIRE

    Thomas , Edouard; Levrat , Eric; Iung , Benoît; Cocheteux , Pierre

    2009-01-01

    International audience; Conventional maintenance strategies on a single component are being phased out in favour of more predictive maintenance actions. These new kinds of actions are performed in order to control the global performances of the whole industrial system. They are anticipative in nature, which allows a maintenance expert to consider non-already-planned maintenance actions. Two questions naturally emerge: when to perform a predictive maintenance action; how a maintenance expert c...

  17. The Clinical Obesity Maintenance Model: An Integration of Psychological Constructs including Mood, Emotional Regulation, Disordered Overeating, Habitual Cluster Behaviours, Health Literacy and Cognitive Function

    OpenAIRE

    Raman, Jayanthi; Smith, Evelyn; Hay, Phillipa

    2013-01-01

    Psychological distress and deficits in executive functioning are likely to be important barriers to effective weight loss maintenance. The purpose of this paper is twofold. First, in the light of recent evidence in the fields of neuropsychology and obesity, particularly on the deficits in the executive function in overweight and obese individuals, a conceptual and theoretical framework of obesity maintenance is introduced by way of a clinical obesity maintenance model (COMM). It is argued tha...

  18. Mechanical configuration and maintenance

    International Nuclear Information System (INIS)

    Brown, T.G.; Casini, G.; Churakov, G.F.

    1982-01-01

    The INTOR engineering design has been strongly influenced by considerations for assembly and maintenance. A maintenance philosophy was established at the outset of the conceptual design to insure that the tokamak configuration would be developed to accommodate maintenance requirements. The main features of the INTOR design are summarized in this paper with primary emphasis on the impact of maintenance considerations. The most apparent configuration design feature is the access provided for torus maintenance. Particular attention was given to the size and location of superconducting magnets and the location of vacuum boundaries. All of the poloidal field (PF) coils are placed outside of the bore of the toroidal field (TF) coils and located above and below an access opening between adjacent TF coils through which torus sectors are removed. A magnet structural configuration consisting of mechanically attached reinforcing members has been designed which facilitates the open access space for torus sector removal. For impurity control, a single null poloidal divertor was selected over a double null design in order to maintain sufficient access for pumping and maintenance of the collector. A double null divertor was found to severely limit access to the torus with the addition of divertor collectors and pumping at the top. For this reason, a single null concept was selected in spite of the more difficult design problems associated with the required asymmetric PF system and higher particle loadings

  19. Operation and maintenance of nuclear power plants

    International Nuclear Information System (INIS)

    Ackermann, G.

    1987-01-01

    This textbook gives a systematic introduction into the operational and maintenance activities in nuclear power plants with pressurized water reactors. Subjects: (1) Setup and operational behaviour of power reactors, (2) setup of nuclear power plants, (3) radiation protection and nuclear safety, (4) nuclear fuel, (5) constructional layout of nuclear power plants, (6) management, and (7) maintenance. 158 figs., 56 tabs

  20. Susquehanna SES maintenance supervisor training and certification

    International Nuclear Information System (INIS)

    Deckman, M.

    1991-01-01

    Susquehanna's program targets all Supervisors, Supervisor Candidates, and Temporary Supervisors that are responsible for in-plant maintenance or maintenance support activities, including: mechanical maintenance; electrical maintenance; maintenance support (labor support, radwaste, etc.); mobile construction support (mechanical and electrical); chemistry; health physics; maintenance planning; and instrument and controls. The program integrates the three major areas of direct Supervisory responsibilities: (1) Leadership and Management - Skills that require interpersonal activities that are typically humanistic and subjective; such as coaching, motivating, communications, etc. (2) Technical and Administrative - Knowledge that is directly related to the job of Supervising from the production, regulatory, accountability perspective. These topics are very objective and include training on topics such as workpackages, plant chemistry parameters, radiological concerns, etc. (3) Technical Skills - Ensure each Supervisor is technically competent in the plant systems, components, or equipment he/she is tasked with maintaining or overseeing. Typical skills found in this area are, circuit breaker maintenance, primary system sampling, or overhauling pumps

  1. Building Maintenance, Management, and Budgeting.

    Science.gov (United States)

    Pawsey, M. R.

    1982-01-01

    Australian methods and formulas for funding building maintenance and management are outlined and found to be haphazard. Discussed are: ultimate costs of deferred maintenance, major plant replacements, life cycle costing, types of maintenance programs (including full preventive maintenance), use of computer programs for planning, and organization…

  2. Construction of maintenance management system of atomic power plant

    International Nuclear Information System (INIS)

    Shibasaki, Naofumi; Ookawara, Koumei; Suzuki, Masashi

    2005-01-01

    This maintenance management system has the retrieval function of the variation conditions with the three dimensions models and repair history. The structure of system consists of the management data retrieval tool and the total facilities repair plan support tool. The system has the management function of facilities information, a bird's-eye view of three dimensions models, data recording function, output of various kinds of registers, pre-estimation of degradation and the repair plan support function. When the total facilities repair plan support tool is selected, the variation conditions of facilities, repair history and repair cost are shown, and each part of facility and materials is able to display. (S.Y.)

  3. Operations and maintenance philosophy

    International Nuclear Information System (INIS)

    DUNCAN, G.P.

    1999-01-01

    This Operations and Maintenance (O and M) Philosophy document is intended to establish a future O and M vision, with an increased focus on minimizing worker exposure, ensuring uninterrupted retrieval operations, and minimizing operation life-cycle cost. It is intended that this document would incorporate O and M lessons learned into on-going and future project upgrades

  4. Floors: Care and Maintenance.

    Science.gov (United States)

    Post Office Dept., Washington, DC.

    Guidelines, methods and policies regarding the care and maintenance of post office building floors are overviewed in this handbook. Procedures outlined are concerned with maintaining a required level of appearance without wasting manpower. Flooring types and characteristics and the particular cleaning requirements of each type are given along with…

  5. Floors: Selection and Maintenance.

    Science.gov (United States)

    Berkeley, Bernard

    Flooring for institutional, commercial, and industrial use is described with regard to its selection, care, and maintenance. The following flooring and subflooring material categories are discussed--(1) resilient floor coverings, (2) carpeting, (3) masonry floors, (4) wood floors, and (5) "formed-in-place floors". The properties, problems,…

  6. Maintenance and regulations

    International Nuclear Information System (INIS)

    Noel, R.

    1984-01-01

    Description of the main regulations concerning the processes tied with maintenance and in service supervision of the pressure vessels in classical or nuclear power plants or of their accessories (essentially in order to fix the time-table of the hydraulic test procedures and the inspection chronology [fr

  7. Maintenance: problem and solution

    CERN Multimedia

    CERN Bulletin

    2012-01-01

    Equipment that is often unique, machines that are as old as the Laboratory, continuous and demanding performance requirements: these are the challenges faced by CERN’s accelerator maintenance teams. There are some twenty such teams, attached to different departments. A new project aims to standardise their procedures to make their work easier, and you can be a part of it.   “For the past year or so, the Accelerator and Technologies Sector and the GS Department have been working together on identifying the needs of the different teams that perform maintenance on CERN’s equipment. We are now ready to provide computer support with detailed specifics about the processes that need to be set up,” explains Goran Perinić, one of the leaders in CERN’s new Maintenance Management project (MMP). Since the LHC entered operation, the responsibilities of the technical teams have been broadened to cover maintenance of the collider and that of its injectors...

  8. Maintenance and hazardous substances

    NARCIS (Netherlands)

    Kuhl, K.; Terwoert, J.; Cabecas, J.J.M.

    2012-01-01

    Maintenance workers come into close contact with a broad variety of often hazardous chemicals. Depending on the specific type, these chemicals may not only cause diseases like skin sores or cancer, but many of them are highly flammable and explosive. This e-facts focuses on the specific risks

  9. Principles of MONJU maintenance. Characteristic of MONJU maintenance and reflection of LWR maintenance experience to FBR

    International Nuclear Information System (INIS)

    Nakai, Satoru; Nishio, Ryuichi; Uchihashi, Masaya; Kaneko, Yoshihisa; Yamashita, Hironobu; Yamaguchi, Atsunori; Aoki, Takayuki

    2014-01-01

    A sodium cooled fast breeder reactor (FBR) has unique systems and components and different degradation mechanism from light water reactor (LWR) so that need to establish maintenance technology in accordance with its features. The examination of the FBR maintenance technology is carried out in the special committee for considering the maintenance for Monju established in the Japan Society of Maintenology (JSM). As a result of the study such as extraction of Monju maintenance feature, maintenance technology benchmark between Monju and LWR components and survey of LWR maintenance experience, it is clear that principles of maintenance are same as LWR, necessity of LWR maintenance experience reflection and points to be considered in Monju maintenance. The road map to establish a FBR maintenance technology in the technical aspect became clear and it is vital to acquire operation and maintenance experience of the plant to implement this road map, and to establish a fast reactor maintenance. (author)

  10. Maintenance and environmental qualification

    International Nuclear Information System (INIS)

    Martin, R.S.; Austin, D.G.

    1995-01-01

    The design of today's nuclear generating plants involves many detailed design considerations. This includes comprehensive look at aging effects on plant components over their expected lifetimes. This is important to ensuring that the plant operates safely throughout its life. The effects of aging are required to be documented in detail in today's designs. This documentation provides assurance that safe operating conditions are maintained throughout the station life cycle. This requirement is analogous to the longer standing requirement to ensure pressure boundary integrity. The pressure boundary integrity requirement has existed in the industry since its inception. The subject of plant aging effects and the maintenance of functionality is known as Environmental Qualification (EQ). This paper will attempt to explain the wisdom of EQ and the potential for optimizing maintenance activities (to move from reactive to proactive activities), within the context of the overall maintenance program. It is the author's intent to encourage the active involvement of maintenance professionals in the effective implementation of the ongoing EQ program so that the benefits are maximized

  11. Identifying Best Practices in Pavement Design, Materials, Construction, and Maintenance in Wet-Freeze Climates Similar to Michigan

    Science.gov (United States)

    2018-02-28

    The intent of this research is to identify best practices for pavements in wet-freeze climates. For the purposes of this report, a best practice is a procedure that has been shown by research or experience to produce improved results and that is esta...

  12. Final Environmental Assessment Addressing Construction, Operation, and Maintenance of a Hot Cargo Pad at Kirtland Air Force Base, New Mexico

    Science.gov (United States)

    2011-01-01

    brachyrhynchos), northern mockingbird (Mimus polyglottos), curved-billed thrasher (Toxostoma curvirostre), lark sparrow (Chordestes grammacus), black...cloud ceiling, fog, rain, or poor visibility, lighted structures might not be visible to migrating birds and can cause bird kills because Final EA...regulations, the MBTA makes it unlawful to pursue, hunt, take, capture, or kill ; attempt to take, capture or kill ; possess, offer to or sell, barter, purchase

  13. The clinical obesity maintenance model: an integration of psychological constructs including mood, emotional regulation, disordered overeating, habitual cluster behaviours, health literacy and cognitive function.

    Science.gov (United States)

    Raman, Jayanthi; Smith, Evelyn; Hay, Phillipa

    2013-01-01

    Psychological distress and deficits in executive functioning are likely to be important barriers to effective weight loss maintenance. The purpose of this paper is twofold. First, in the light of recent evidence in the fields of neuropsychology and obesity, particularly on the deficits in the executive function in overweight and obese individuals, a conceptual and theoretical framework of obesity maintenance is introduced by way of a clinical obesity maintenance model (COMM). It is argued that psychological variables, that of habitual cluster Behaviors, emotional dysregulation, mood, and health literacy, interact with executive functioning and impact on the overeating/binge eating behaviors of obese individuals. Second, cognizant of this model, it is argued that the focus of obesity management should be extended to include a broader range of maintaining mechanisms, including but not limited to cognitive deficits. Finally, a discussion on potential future directions in research and practice using the COMM is provided.

  14. The Clinical Obesity Maintenance Model: An Integration of Psychological Constructs including Mood, Emotional Regulation, Disordered Overeating, Habitual Cluster Behaviours, Health Literacy and Cognitive Function

    Directory of Open Access Journals (Sweden)

    Jayanthi Raman

    2013-01-01

    Full Text Available Psychological distress and deficits in executive functioning are likely to be important barriers to effective weight loss maintenance. The purpose of this paper is twofold. First, in the light of recent evidence in the fields of neuropsychology and obesity, particularly on the deficits in the executive function in overweight and obese individuals, a conceptual and theoretical framework of obesity maintenance is introduced by way of a clinical obesity maintenance model (COMM. It is argued that psychological variables, that of habitual cluster Behaviors, emotional dysregulation, mood, and health literacy, interact with executive functioning and impact on the overeating/binge eating behaviors of obese individuals. Second, cognizant of this model, it is argued that the focus of obesity management should be extended to include a broader range of maintaining mechanisms, including but not limited to cognitive deficits. Finally, a discussion on potential future directions in research and practice using the COMM is provided.

  15. A review on sustainable construction management strategies for monitoring, diagnosing, and retrofitting the building’s dynamic energy performance: Focused on the operation and maintenance phase

    International Nuclear Information System (INIS)

    Hong, Taehoon; Koo, Choongwan; Kim, Jimin; Lee, Minhyun; Jeong, Kwangbok

    2015-01-01

    Highlights: • This study reviews the state-of-the-art in “energy” as well as “building”. • Building’s dynamic energy performance should be managed in the built environments. • This study summarizes recent progress in the building’s dynamic energy performance. • The major phases can be categorized into monitoring, diagnosing, and retrofitting. • This study proposes the specific future development directions and challenges by phase. - Abstract: According to a press release, the building sector accounts for about 40% of the global primary energy consumption. Energy savings can be achieved in the building sector by improving the building’s dynamic energy performance in terms of sustainable construction management in the urban-based built environments (referred to as an “Urban Organism”). This study implements the concept of “dynamic approach” to reflect the unexpected changes in the climate and energy environments as well as in the energy policies and technologies. Research in this area is very significant for the future of the building, energy, and environmental industries around the world. However, there is a lack of studies from the perspective of the dynamic approach and the system integration, and thus, this study is designed to fill the research gap. This study highlights the state-of-the-art in the major phases for a building’s dynamic energy performance (i.e., monitoring, diagnosing, and retrofitting phases), focusing on the operation and maintenance phase. This study covers a wide range of research works and provides various illustrative examples of the monitoring, diagnosing, and retrofitting of a building’s dynamic energy performance. Finally, this study proposes the specific future developments and challenges by phase and suggests the future direction of system integration for the development of a carbon-integrated management system as a large complex system. It is expected that researchers and practitioners can

  16. Managing and controlling maintenance

    International Nuclear Information System (INIS)

    Chavez, G.; Perla, H.F.

    1980-01-01

    A well-planned maintenance-management program can bring organized yet flexible scheduling, improved productivity, and a ready-access data bank. The system detailed in the article, developed for a nuclear power plant, has application to any equipment-intensive facility. Key features of the system include: documentation of all work requirements and their completion; automated prioritizing of work orders; automatic generation of work orders for repetitive work, when due; work lists in priority sequence; deferred, standby, and outage work reports; labor and work-order backlog information; equipment work histories and cumulative failure data

  17. Field installation and maintenance

    International Nuclear Information System (INIS)

    Prebble, R.E.

    1981-01-01

    The use of a neutron moisture meter for the determination of the water content of soil necessitates the installation of an access tube down which the probe can be lowered. Errors in neutron count rate will be introduced if water enters the air gap between a loose fitting tube and the soil. Errors may also be caused by changes in the soil structure resulting from the techniques for soil removal and from driving the access hole. Access tube materials and dimensions, methods of installation and maintenance of the site are discussed

  18. Constructing Memory: Competence Maintenance, Education and Training Working Group on the Implementation of Geological Disposal of the Radioactive Waste Technology Platform

    International Nuclear Information System (INIS)

    Palmu, Marjatta

    2015-01-01

    The Implementing Geological Disposal of Radioactive Waste Technology Platform (IGD-TP) community, with over 115 participants in 2014, according to its Vision 2025 (IGD-TP, 2009) aims to proceed to obtaining licences to construct and to safely operate deep geological repositories for spent fuel, high-level waste, and other long-lived radioactive waste in their respective countries. The commitment to Vision 2025 includes developing joint means to facilitate access to expertise and technology, and maintain competencies in the field of geological disposal in Europe. In 2012, IGD-TP launched a Working Group on Competence Maintenance, Education and Training (CMET), as one of its permanent joint activities for addressing its commitment to maintain competencies. In 2013, this permanent organisational working group convened for its first meeting and started working with the support of the IGD-TP Secretariat. The work on competence maintenance within this IGD-TP's working group is first of all focusing on benefiting from and promoting the ECVET approach's application in geological disposal and in future competence building of the community. ECVET approach identifies the LOs that need to be mastered by professionals to carry out their work - starting from the early stages of a waste management programme to running the nuclear waste facilities safely and efficiently. LOs are defined in terms of knowledge, skills and competence (KSC) in ECVET ('attitude' is the corresponding term used by the International Atomic Energy Agency). In their different job functions or tasks the professionals carrying out their work need to master these KSCs at specified European Qualification Framework qualification levels (European Qualification Framework or International Standard Classification for Education according to the job's requirements. The ECVET approach is useful for higher education and continuous professional development, too, not just for vocational education

  19. Interval of Routine Maintenance and Maintenance Performance: A Literature Review

    Directory of Open Access Journals (Sweden)

    Au-Yong Cheong Peng

    2016-01-01

    Full Text Available In high-rise residential buildings, the quality of facilities management services is significant to the normal operation of the facilities. Unfortunately, lack of concern towards building maintenance, especially preventive maintenance, happens in domestic housing industry in Malaysia. Majority of the maintenance operations of condominiums suffer from lack of planning, lack of proactive maintenance plan, and lack of proper implementation. Thus, this paper reviews the implementation of preventive maintenance strategy, routine maintenance in specific. An extensive review of literature published in 1987 to 2014 is performed for the purpose of this research. The publications are sourced from journal articles, conference proceedings and books. The literature analysis confirms that the routine maintenance of facilities and building services is vital and it can be influential towards the maintenance performance. Subsequently, a theoretical framework is developed, which shows the relationship between routine maintenance of building facilities & services and maintenance performance. The building facilities & services are divided into two categories. They are essential facilities & services that ensure the safety, health, habitability, and operability of buildings; while value-added facilities & services deal with property value, return on investment, and quality living of buildings. Based on the findings, a future research is proposed, which aims to identify the appropriate routine of maintenance for the facilities and services in high-rise residential buildings to improve the maintenance performance.

  20. ITER assembly and maintenance

    International Nuclear Information System (INIS)

    Honda, T.; Davis, F.; Lousteau, D.

    1991-01-01

    This document is intended to describe the work conducted by the ITER Assembly and Maintenance (A and M) Design Unit and the supporting home teams during the ITER Conceptual Design Activities, carried out from 1988 through 1990. Its content consists of two main sections, i.e., Chapter III, which describes the identified tasks to be performed by the A and M system and a general description of the required equipment; and Chapter IV, which provides a more detailed description of the equipment proposed to perform the assigned tasks. A two-stage R and D program is now planned, i.e., (1) a prototype equipment functional tests using full scale mock-ups and (2) a full scale integration demonstration test facility with real components (vacuum vessel with ports, blanket modules, divertor modules, armor tiles, etc.). Crucial in-vessel and ex-vessel operations and the associated remote handling equipment, including handling of divertor plates and blanket modules will be demonstrated in the first phase, whereby the database needed to proceed with the engineering phase will be acquired. The second phase will demonstrate the ability of the overall system to execute the required maintenance procedures and evaluate the performance of the prototype equipment

  1. Maintenance and management system

    International Nuclear Information System (INIS)

    Ando, Yasumasa.

    1992-01-01

    Since highly reliable operation is required in a nuclear power plant, monitoring during operation and periodical inspection are conducted carefully. The present invention provides maintenance and management systems for providing an aid so that these systems are combined effectively and operated rationally based on unified information management. That is, the system contains data bases comprising information for the design of the equipments and pipelines of a plant, information for the exchange of equipment parts, information for the history of plant operation, information for the monitoring and inspection, and information for the management of repair operation. In addition, it has an equipment part history management sub-system for managing equipment part exchange information, an operation history management sub-system for managing the operation state of the plant, an operation history management sub-system for managing equipment monitoring inspection data and operation management sub-system for managing periodical inspection/ repairing operation. These sub-systems are collectively combined to manage the maintenance and management jobs of the plant unitarily. (I.S.)

  2. Paranal maintenance and CMMS experience

    Science.gov (United States)

    Montano, Nelson

    2004-10-01

    During the last four years of operations, low technical downtime has been one of the relevant records of the Paranal Observatory. From the beginning of the Very Large Telescope (VLT) project, European Southern Observatory (ESO) has considered the implementation of a proper maintenance strategy a fundamental point in order to ensure low technical down time and preserve the Observatory's assets. The implementation of the maintenance strategy was based on the following aspects: - Strong maintenance sense during the design stage. Line Replacement Unit (LRU) concept, standardization and modularity of the Observatory equipment - Creation of a dedicated team for Maintenance - The implementation of a Computerized Maintenance Management System After four operational years, the result of these aspects has exceeded the expectations; the Observatory has been operating with high availability under a sustainable strategy. The strengths of the maintenance strategy have been based on modern maintenance concepts applied by regular production companies, where any minute of down time involves high cost. The operation of the actual Paranal Maintenance System is based mainly on proactive activities, such as regular inspections, preventive maintenance (PM) and predictive maintenance (PdM) plans. Nevertheless, it has been necessary to implement a strong plan for corrective maintenance (CM). The Spare Parts Strategy has also been an important point linked to the Maintenance Strategy and CMMS implementation. At present, almost 4,000 items related to the Observatory spare parts are loaded into the CMMS database. Currently, we are studying the implementation of a Reliability Centered Maintenance (RCM) project in one of our critical systems The following document presents the actual status of the Paranal Maintenance Strategy and which have been the motivations to implement the established strategy.

  3. Operations and maintenance plans for the TFTR

    International Nuclear Information System (INIS)

    Allen, H.L.; Fedor, B.J.

    1978-01-01

    Princeton University Plasma Physics Laboratory (PPPL) is constructing a Tokamak Fusion Test Reactor (TFTR) scheduled to begin operation for fusion research experiments in late 1981, first with hydrogen and deuterium plasmas and later, in the second phase, using tritium for high power fusion studies. This latter mode will introduce considerable complexity to operation and maintenance of the TFTR in terms of meeting requirements for tritium handling, adequate radiation shielding, and corrective and preventive maintenance procedures. In this paper we discuss plans for the installation and preoperational testing of the major subsystems of TFTR, proposed start-up and operating scenarios for the device and the system of operational control. In addition, the TFTR Maintenance Plan and related procedures for specific major maintenance tasks are described, including the use of remote handling equipment and remote manipulators. Each of these topics is addressed in terms of the current status of planning and development

  4. Maintenance Production Demand and Capacity Analysis of Third Maintenance Battalion

    Science.gov (United States)

    2017-12-01

    Delivery T/E Table of Equipment TFSMS Total Force Structure Management System TFSP Total Force Structure Process TM Technical Manual T/O Table of...exercises each year, both on Okinawa and throughout the Pacific theater. When equipment requires maintenance beyond the organizational -level...demand was analyzed based on customer cycle time (i.e., time that equipment was in Third Maintenance Battalion custody), maintenance cycle time during

  5. Construction history and construction management

    International Nuclear Information System (INIS)

    Agh, S.

    1999-01-01

    The process of pre-design and design preparation of the Mochovce NPP as well as the construction history of the plant is highlighted, including the financing aspect and problems arising from changes in the technological and other conditions of start-up of the reactor units. The results of international audits performed to improve the level of nuclear safety and implementation of the measures suggested are also described. The milestones of the whole construction process and start-up process, the control and quality system, and the methods of control and management of the complex construction project are outlined. (author)

  6. Space Telescope maintenance and refurbishment

    Science.gov (United States)

    Trucks, H. F.

    1983-01-01

    The Space Telescope (ST) represents a new concept regarding spaceborne astronomical observatories. Maintenance crews will be brought to the orbital worksite to make repairs and replace scientific instruments. For major overhauls the telescope can be temporarily returned to earth with the aid of the Shuttle. It will, thus, be possible to conduct astronomical studies with the ST for two decades or more. The five first-generation scientific instruments used with the ST include a wide field/planetary camera, a faint object camera, a faint object spectrograph, a high resolution spectrograph, and a high speed photometer. Attention is given to the optical telescope assembly, the support systems module, aspects of mission and science operations, unscheduled maintenance, contingency orbital maintenance, planned on-orbit maintenance, ground maintenance, ground refurbishment, and ground logistics.

  7. Proceedings of the Canadian Institute conference on supply chain management in the oil and gas industry : major capital construction projects, maintenance, repair and operations

    International Nuclear Information System (INIS)

    2005-01-01

    Many companies are now being forced to focus on careful budgeting to ensure that the capital costs of large-scale construction projects do not exceed their budgets. Operators are now investigating the role of supply chain management in reducing project costs. This conference provided a forum for the discussion of issues related to large construction projects for supply chain management in the oil and gas industry. Participants at the conference discussed methods of negotiating with contractors in order to manage higher prices for steel and other commodities. Best practices for maintaining effective purchaser-contractor relations were discussed along with cost benchmarks in contracts and management planning techniques for supply chain processes. The benefits of adopting vendor-managed inventory systems were also examined. Sourcing strategies were presented and issues related to transportation were reviewed along with various planning models. The conference featured 16 presentations. tabs., figs

  8. Constructed wetlands for pollution control: processes, performance, design and operation

    National Research Council Canada - National Science Library

    2000-01-01

    .... Types of constructed wetland, major design parameters, role of vegetation, hydraulic patterns, loadings, treatment efficiency, construction, operation and maintenance costs are discussed in depth...

  9. Urban public space materials. Maintenance and design?

    Directory of Open Access Journals (Sweden)

    Manuel Iglesias Campos

    2016-10-01

    Full Text Available In this paper, certain aspects related to the conservation of materials commonly used in the design of public spaces are analysed and discussed from a starting point of maintenance definition. The main area of discussion is whether materials selection for pavements and urban furniture, and their placement in the designed space, take into account their maintenance needs. Here the definition of maintenance is the cleaning and repair done by municipal services that is always necessary after construction. From certain examples it can be concluded that, in several cases, the form, the organization and the distribution of the different elements within the public space can cause difficulties for its appropriate conservation, giving rise to alterations and consequently having a negative impact on the durability of this space.

  10. Genetic variation and its maintenance

    International Nuclear Information System (INIS)

    Roberts, D.F.; De Stefano, G.F.

    1986-01-01

    This book contains several papers divided among three sections. The section titles are: Genetic Diversity--Its Dimensions; Genetic Diversity--Its Origin and Maintenance; and Genetic Diversity--Applications and Problems of Complex Characters

  11. Managing Custodial and Maintenance Staffs.

    Science.gov (United States)

    Fickes, Michael

    2001-01-01

    Presents some basic maintenance management techniques that can help schools meet their budgets, preserve staffing levels, meet productivity needs, and sustain quality services. Tips for staff recruitment, training, and retention are explored. (GR)

  12. Depot Maintenance: Executed Workload and Maintenance Operations at DOD Depots

    Science.gov (United States)

    2017-02-03

    in turn enable testing of helicopter rotor blades. The Army has also made investments in logistics software at all of its depots. According to the...maintenance and repair of structural helicopter airframes and blades; advanced composite technologies; flight controls and control surfaces; and...level maintenance on a wide range of vehicles and other military assets, including helicopters , combat vehicles, ships, aircraft, engines, and software

  13. Tunnel Boring Machine Cutter Maintenance for Constructing Underground Cable Lines from Nuclear Power Plants

    International Nuclear Information System (INIS)

    Lee, Jae Wang; Yee, Eric

    2014-01-01

    The tunnel boring machine (TBM) can construct an underground tunnel efficiently and without construction noise vibration related problems. Many civil projects, such as NPP construction, set importance on the economics of construction. Thus, advance rate, which is the speed at which the TBM is able to progress along its intended route, is one of the key factors affecting construction period and construction expenses. As the saying goes, time is money. Right Double Quotation Mark In addition, it is important to manage construction permits and civil complaints, even when construction expenses and construction periods are excluded. So, accurate prediction for advance rate is important when designing tunnel project. Several designers and project owners have tried to improve construction efficiency and tunneling advance rate.. There have been several studies on managing the rate of wear, designing an optimum tunnel face, and finding the optimum cutter spacing. Cutter replacements due to cutter wear and tear are very important because the wear and tear of cutters attached to the cutter head profoundly affect the advance rate. To manage cutter wear and tear is to control parameters related to cutter shape and cutter wear rate. There have been studies on the relationship between rock properties or TBM characteristics, and cutter wear or replacement. However, many of these studies relied on computer simulations or other small scale experiments. Therefore, this paper attempts to present a correlation between cutter replacement or cutter wear, against various parameters using practical data such as rock quality and TBM shield specifications, from an actual construction site. This study was conducted to suggest directions in the improvement of TBM cutters by analyzing relationships between rock conditions and cutter maintenance as well as TBM advance rates. Actual field data was collected and compared to actual design values in evaluating the effectiveness of traditional

  14. Tunnel Boring Machine Cutter Maintenance for Constructing Underground Cable Lines from Nuclear Power Plants

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jae Wang; Yee, Eric [KEPCO International Nuclear Graduate School, Ulsan (Korea, Republic of)

    2014-10-15

    The tunnel boring machine (TBM) can construct an underground tunnel efficiently and without construction noise vibration related problems. Many civil projects, such as NPP construction, set importance on the economics of construction. Thus, advance rate, which is the speed at which the TBM is able to progress along its intended route, is one of the key factors affecting construction period and construction expenses. As the saying goes, time is money. Right Double Quotation Mark In addition, it is important to manage construction permits and civil complaints, even when construction expenses and construction periods are excluded. So, accurate prediction for advance rate is important when designing tunnel project. Several designers and project owners have tried to improve construction efficiency and tunneling advance rate.. There have been several studies on managing the rate of wear, designing an optimum tunnel face, and finding the optimum cutter spacing. Cutter replacements due to cutter wear and tear are very important because the wear and tear of cutters attached to the cutter head profoundly affect the advance rate. To manage cutter wear and tear is to control parameters related to cutter shape and cutter wear rate. There have been studies on the relationship between rock properties or TBM characteristics, and cutter wear or replacement. However, many of these studies relied on computer simulations or other small scale experiments. Therefore, this paper attempts to present a correlation between cutter replacement or cutter wear, against various parameters using practical data such as rock quality and TBM shield specifications, from an actual construction site. This study was conducted to suggest directions in the improvement of TBM cutters by analyzing relationships between rock conditions and cutter maintenance as well as TBM advance rates. Actual field data was collected and compared to actual design values in evaluating the effectiveness of traditional

  15. TPX remote maintenance and shielding

    International Nuclear Information System (INIS)

    Rennich, M.J.; Nelson, B.E.

    1994-01-01

    The Tokamak Physics Experiment machine design incorporates comprehensive planning for efficient and safe component maintenance. Three programmatic decisions have been made to insure the successful implementation of this objective. First, the tokamak incorporates radiation shielding to reduce activation of components and limit the dose rate to personnel working on the outside of the machine. This allows most of the ex-vessel equipment to be maintained through conventional ''hands-on'' procedures. Second, to the maximum extent possible, low activation materials will be used inside the shielding volume. This resulted in the selection of Titanium (Ti-6Al-4V) for the vacuum vessel and PFC structures. The third decision stipulated that the primary in-vessel components will be replaced or repaired via remote maintenance tools specifically provided for the task. The component designers have been given the responsibility of incorporating maintenance design and for proving the maintainability of the design concepts in full-scale mockup tests prior to the initiation of final fabrication. Remote maintenance of the TPX machine is facilitated by general purpose tools provided by a special purpose design team. Major tools will include an in-vessel transporter, a vessel transfer system and a large component transfer container. In addition, tools such as manipulators and remotely operable impact wrenches will be made available to the component designers by this group. Maintenance systems will also provide the necessary controls for this equipment

  16. Plant inspection and maintenance technology

    International Nuclear Information System (INIS)

    Miyahara, Masatoshi; Kanazawa, Masafumi

    1995-01-01

    The article reports on information systems and related tools that support routine inspection and preventive maintenance activities, which contribute to safer plant operation and increase plant operating duty. Tools include the Mitsubishi Electric Reliability and Availability Upgrade Program-Nuclear (MELRAP-N), which supports the general evolution of industry operating experiences, periodic component replacement management, management of discontinued and modified components, periodic inspection item management, and periodic inspection workplace management. The article also introduces a comprehensive preventive maintenance management system currently under development. (author)

  17. Overview of maintenance principles and regulatory supervision of maintenance activities at nuclear power plants in Slovakia

    International Nuclear Information System (INIS)

    Rohar, S.; Cepcek, S.

    1997-01-01

    The maintenance represents one of the most important tools to ensure safe and reliable operation of nuclear power plants. The emphasis of Nuclear Regulatory Authority of the Slovak Republic to the maintenance issue is expressed by requirements in the regulations. The current practice of maintenance management in operated nuclear power plants in Slovak Republic is presented. Main aspects of maintenance, as maintenance programme, organization of maintenance, responsibilities for maintenance are described. Activities of nuclear regulatory authority in maintenance process are presented too. (author)

  18. Maintenance analysis method and operational feedback: a comprehensive maintenance management

    International Nuclear Information System (INIS)

    Mathieu Riou; Victor Planchon

    2006-01-01

    Full text of publication follows: Current periodic inspections program carried out on the COGEMA LOGISTICS casks is required by regulations and approved by the competent Authority. Thus, Safety and casks conformity to the according certificate of approval are guaranteed. Nonetheless, based on experience it appeared that some maintenance operations did not seem relevant or were redundant. Then, it was decided to rethink completely our maintenance program to reach the following objectives: - Set up the 'a minima' required inspection operations required to guarantee Safety and conformity to the certificate of approval, - Optimize criteria and periodicities of inspections taking into account: operational feedback, routine inspections carried out for each transport, regulations, environmental impact (ALARA, waste reduction,...), cost-effectiveness (reduction of cask's immobilization period,...). - Set up a maintenance program in Safety Analysis Reports that: stands alone (no need to check the specification or the certificate of approval to have the complete list of inspections mandatory to guarantee Safety), gives objectives instead of means of controls. This approach needs then to be re-evaluated by the competent Authority. Study's scope has been limited to the TN TM 12 cask family which is intensely used. COGEMA LOGISTICS has a high operational feedback on these casks. After Authority agreement, and in accordance with its requirements, study will then be extended to the other casks belonging to the COGEMA LOGISTICS cask fleet. Actually, the term 'maintenance' is linked to 'Base maintenance' and 'Main maintenance' and implicitly means that the cask is immobilized for a given period. To emphasize the modifications, the term 'maintenance' is no longer used and is substituted by 'periodic upkeep'. By changing the name, COGEMA LOGISTICS wants to emphasize that: some operations can for instance be realized while the cask is unloaded, periodicities are thought in terms of

  19. Project Surveillance and Maintenance Plan

    International Nuclear Information System (INIS)

    1985-09-01

    The Project Surveillance and Maintenance Plan (PSMP) describes the procedures that will be used by the US Department of Energy (DOE), or other agency as designated by the President to verify that inactive uranium tailings disposal facilities remain in compliance with licensing requirements and US Environmental Protection Agency (EPA) standards for remedial actions. The PSMP will be used as a guide for the development of individual Site Surveillance and Maintenance Plans (part of a license application) for each of the UMTRA Project sites. The PSMP is not intended to provide minimum requirements but rather to provide guidance in the selection of surveillance measures. For example, the plan acknowledges that ground-water monitoring may or may not be required and provides the [guidance] to make this decision. The Site Surveillance and Maintenance Plans (SSMPs) will form the basis for the licensing of the long-term surveillance and maintenance of each UMTRA Project site by the NRC. Therefore, the PSMP is a key milestone in the licensing process of all UMTRA Project sites. The Project Licensing Plan (DOE, 1984a) describes the licensing process. 11 refs., 22 figs., 8 tabs

  20. Design, maintenance and lifetime of nuclear components

    International Nuclear Information System (INIS)

    Noel, R.L.; Eisenhut, D.G.; Carey, J.J.; Reynes, L.J.

    1989-01-01

    Division D of SMiRT deals with experience feedback relating to the in-service behavior of nuclear components, the design and construction of this equipment, its maintenance and the evaluation and management of its lifetime. The nuclear industry now having reached maturity, with more than 300 units in service worldwide, these problems are now of predominant importance to the activity of the industry and in its development programs. This applies particularly to the problems relating to the lifetime of nuclear plants, problems which are rightly of such concern both to the utilities, in view of the enormous investments involved, and also to the safety authorities. These contributions have been reviewed for the purpose of analyzing the essential points. This analysis highlights the considerable advances achieved during the recent decades in design and maintenance methods and practices. It also identifies the areas in which progress still remains to be made

  1. Operations and maintenance - Safety challenges

    Energy Technology Data Exchange (ETDEWEB)

    Nielsen, Liv [Oljedirektoratet, Stavanger (Norway)

    1999-07-01

    With the unsteady oil prices and the possible consequences of the deregulation of the European energy markets one may expect further optimization of operating and maintenance costs. One may also expect extended use of various risk-based optimization techniques such as RCM (Reliability Centered Maintenance) and RBI (Risk Based Inspection). This presentation addresses the need for further research and development in this area. Maintenance work is necessary, but it can also create risk. The accident statistics show many examples of this. The Norwegian petroleum industry's ability to learn from previous incidents is questioned. Maintenance staff must be well trained and possess the necessary routines. Technical documentation must be updated. Uncertainties with respect to future oil and gas prices combined with the effect of the deregulation of the European energy markets will lead to even more focus on cost-effective operations and maintenance. The need for long-term research and development is stressed. Risk based techniques such as RCM and RBI are extensively used in the defence industry and the nuclear industry, but applying them to the petroleum industry requires improved risk models. Ageing effects such as corrosion, erosion, fatigue etc. can be expected, but the capability to predict, monitor and control them should be improved. At present, not even the most sophisticated risk analysis can model ageing effects. The importance of efficient use of information technology (IT) is stressed. Improving the product quality and safety often requires new technology and so research and development is important. Close cooperation with the industry is required.

  2. Remote operation and maintenance support services for nuclear power plants

    International Nuclear Information System (INIS)

    Yamamoto, Hiroki; Higuma, Koji; Shimizu, Shunichi; Sakuma, Masatake; Sonoda, Yukio; Kanemoto, Shigeru

    2004-01-01

    Toshiba Corporation constructed e-Toshiba Operating Plant Service (e-TOPS TM ) system and began remote operation and maintenance support service for nuclear power plants. The service put into practice remote operation and maintenance by harmony of information technologies such as internet and mobile, and nuclear power measurement/diagnostic technologies and security techniques. Outline of e-TOPS TM , remote-control service, -inspection system, -diagnostic service and technologies support service are explained. Construction, objects and application effects of e-TOPS TM , remote diagnostic system using image treatment techniques, construction of device record card control system are illustrated. (S.Y.)

  3. Pavement maintenance procedures with and without milling materials

    Directory of Open Access Journals (Sweden)

    Rafiqul A. Tarefder

    2016-01-01

    Full Text Available This study evaluates maintenance treatment followed by different Districts of New Mexico Department of Transportation (NMDOT. In addition, two case studies on the use of old pavement materials, called the “millings”, in maintenance projects are reported. Based on this study, it is observed that none of the Districts have a written procedure for maintenance work. Rather Districts rely on the experience of the maintenance crew for conducting maintenance projects. All Districts prefer to use chip seal for maintenance irrespective of distress conditions of the pavements. Patching and crack sealing are usually done before chip sealing to extend the life of the chip seals. Sand seal, scrub seal, and slurry seal projects are not done by District maintenance crews but by outside contractors. It is also observed that all Districts are interested in using millings in maintenance projects and most have already used millings in at least one maintenance project with some success and failure. Most of the Districts have used coarse fraction of millings in chip seal projects successfully. However, they failed to find a proper way to process the fine fractions of millings. Case Study I shows that fine millings can be used to construct thin overlay when mixed with emulsion in pug mill or hot drums. Case Study II concludes that fine millings can be used as fine/sand seal successfully following the same procedure and using the same equipment as chip seal. Keywords: Millings, Maintenance, Emulsion, Rutting, Pug-mill

  4. Maintenance facilities, stores and records

    International Nuclear Information System (INIS)

    Fischer, K.

    1986-01-01

    The topics of this report are: on-site or off-site facilities. On-site facilities: workshops and special facilities. KWU's Service Center, a typical off-site supporting facility in Germany, capabilities and activities. A pool for special tools and equipment: devices for plugging of nozzles, for handling of RPU-studs and RPU internals etc. Devices for and management of radiological protection on-site for typical outage work. Spare parts and spare part management on site, typical examples. KWU's centralized spare part pools for components, generators and turbines etc. A computerized system for spare parts storage and maintenance planning. A system for mutual exchange of operational experience with respect to maintenance and repair activities. Systematic evaluation of failures and statistical results. (orig./GL)

  5. Chromatin replication and epigenome maintenance

    DEFF Research Database (Denmark)

    Alabert, Constance; Groth, Anja

    2012-01-01

    Stability and function of eukaryotic genomes are closely linked to chromatin structure and organization. During cell division the entire genome must be accurately replicated and the chromatin landscape reproduced on new DNA. Chromatin and nuclear structure influence where and when DNA replication...... initiates, whereas the replication process itself disrupts chromatin and challenges established patterns of genome regulation. Specialized replication-coupled mechanisms assemble new DNA into chromatin, but epigenome maintenance is a continuous process taking place throughout the cell cycle. If DNA...

  6. Mining Surveillance and Maintenance Dollars

    International Nuclear Information System (INIS)

    MARTINEZ, R.

    2000-01-01

    Accelerating site cleanup to reduce facility risks to the workers, the public and the environment during a time of declining federal budgets represents a significant technical and economic challenge to U.S. Department of Energy (DOE) Operations Offices and their respective contractors. A significant portion of a facility's recurring annual expenses are associated with routine, long-term surveillance and maintenance (S and M) activities. However, ongoing S and M activities do nothing to reduce risks and basically spend money that could be reallocated towards facility deactivation. This paper discusses the background around DOE efforts to reduce surveillance and maintenance costs, one approach used to perform cost reviews, lessons learned from field implementation and what assistance is available to assist DOE sites in performing these evaluations

  7. The maintenance management framework models and methods for complex systems maintenance

    CERN Document Server

    Crespo Márquez, Adolfo

    2010-01-01

    “The Maintenance Management Framework” describes and reviews the concept, process and framework of modern maintenance management of complex systems; concentrating specifically on modern modelling tools (deterministic and empirical) for maintenance planning and scheduling. It will be bought by engineers and professionals involved in maintenance management, maintenance engineering, operations management, quality, etc. as well as graduate students and researchers in this field.

  8. Procedures for maintenance and repairs

    International Nuclear Information System (INIS)

    Pickel, E.

    1981-01-01

    After a general review of the operation experience in the history of more than 12 operating years, the organization in the plant will be shown with special aspect to quality assurance, capacity of the workshops and connected groups as radiation protection, chemical laboratories etc. The number, time intervals and manpower effort for the repeating tests will be discussed. Reasons and examples for back-fitting activities in the plant are given. Besides special repair and maintenance procedures as repair of the steam generators, in-service inspection of the reactor pressure vessel, repair of a feed-water pipe and repair of the core structure in the pressure vessel, the general system to handle maintenance and repair-work in the KWO-plant will be shown. This includes also the detailed planning of the annual refueling and revision of the plant. (orig./RW)

  9. Environmental Assessment. Construction and Maintenance of Wastewater Pipelines and Lift Stations and Installation of Fiber Optic Conduit at Eglin Air Force Base, Florida

    Science.gov (United States)

    2012-06-01

    The wetland on the unnamed tributary of Garnier Creek, upstream of the point of crossing, contains a single individual of the genus Platanthera...Woods And  Maintained ROW  X  X  X  Diospyros  virginiana  Persimmon  Mixed Pine‐Hardwood Forest,  Usually With Longleaf Pine  X  X  X  Eleocharis obtusa

  10. Activities of maintenance and outage

    International Nuclear Information System (INIS)

    Gracia-Orellan, J. M.; Gonzalez, P. L.; Verdu, M. F.; Fernandez, J. A.

    2004-01-01

    Iberinco Nuclear Generation Department have wanted to promote service activities in nuclear power plants for years besides its dedication to engineering activities. for it, in 1997 Nuclear Services Management was created to complement engineering activities and to be able to make an offer for products and turn key services. People involved in this Management have an extensive experience in Services Area, so that all type of maintenance works are promoted, as well other services like dismantling, fallout management and new equipment's for nuclear power plants services. Iberinco's experience in Support Services in Nuclear Power Plants allows to answer effectively to special workers during operation cycle and outages periods. These activities have been made in spanish nuclear power plants and Angra I and II plants, both of them in Brazil. In this area we provide Technical Consulting Management and Supervision to develop the following activities: - Improvement Maintenance Programs based in PSA: Implantation of Maintenance Rule in the plants. - Supervision and Assembly of design modifications in structures, systems and components. - Fulfilment of efficiency tests, inspection and turbo-group modification. - Noise and vibrations analysis. - Valves and rotative equipment calculations and diagnosis tests. Iberinco develop these outage activities itself or as contractors coordinator under its management. A lot of them have been working with Iberinco for many years and have a great experience in the Service Area they are developing. In this article, the main outage activities developed for Iberinco are detailed. (Author)

  11. Maintenance program, organization and procedures

    International Nuclear Information System (INIS)

    Schegk, J.R.R.

    1986-01-01

    The Rheinisch-Westfaelisches Elektrizitaetswerk AG (RWE) operates two pressurized water reactors (PWR) with 1.200 MW and 1.300 MW and two boiling water reactors (BWR) with an electrical output of 1.300 MW each. The PWR were commissioned in 1975 and 1977 respectively and have so far achieved a cumulative availability of 72%. The BWR started operating in 1984 and 1985. Since than they have been generating with a cumulative availability of 88%. The reliability of the nuclear power stations resulted in a trouble-free operation. For the last two years, the unscheduled non-availability amounted to 3,7% and 6,5% for the PWR and the BWR respectively. These favourable operating results derive inter alia from systematic preventive maintenance and consistent outage management. Apart from the personnel structure in the power stations the functional sequence of planning, control, performance as well as evaluation of maintenance results constitute a closed cycle. In order to ensure and support an effective cooperation of the above mentioned four functional sequences of a cycle, uniform and computer-assisted information and planning aids have been introduced such as task lists, job ordering, time scheduling and materials management. As a result of this preventive maintenance system the average refueling outage period is 35 to 42 days. (orig.)

  12. Maintenance and fabrication of nuclear electronic equipment

    International Nuclear Information System (INIS)

    Hong, Seok Boong; Chung, Chong Eun; Hwang, In Koo; Koo, In Soo; Park, Bum; Kim, Soo Hee; Lee, Seong Joo; Kim, Min Seok; Choi, Wha Lim

    2011-12-01

    - process equipment at PIEF, Chemical Analysis Team and RWFTF have been calibrated. - The electronic equipment and radiation equipment at RWTF and PIEF have been prepared. - Development and installation of integrated RMS software for Hanaro Cold Neutron Laboratory Building(CNLB) RMS, and development and performance upgrade of a portal monitor for CNLB. - Performance test of the Hardware/Software of digital unit controller has been performed, and functional upgrade of the Hardware/Software of stimulator for SMART MMIS performance test facility has also been performed. - A controller of high voltage power supply for a small electron beam generator and a controller for razer pinning and a remote monitoring apparatus of cathode power supply for a 0.2 Mev. small electron beam generator have been designed and fabricated. - Database construction for effective maintenance for the process equipment and radiation instruments are designed and constructed

  13. Bulk Fuel Storage Requirements for Maintenance, Repair, and Environmental Projects at Fort Hood, Texas

    National Research Council Canada - National Science Library

    Carros, Deborah

    2000-01-01

    This report is one in a series that addresses the accuracy and reliability of maintenance, repair, environmental, and construction requirements for bulk fuel storage and delivery systems infrastructure...

  14. Remote maintenance systems requirements are being developed to provide design guidelines for machine components, to define maintenance interfaces, and to quantify maintenance equipment and procedures needed

    International Nuclear Information System (INIS)

    Spampinato, P.T.; Tabor, M.A.

    1988-01-01

    Remote maintenance systems requirements are being developed to provide design guidelines for machine components, to define maintenance interfaces, and to quantify maintenance equipment and procedures needed

  15. Operation and Maintenance of Water Pollution Control Facilities: A WPCF White Paper.

    Science.gov (United States)

    Hill, William R.; And Others

    1979-01-01

    Presented are the recommendations of the Water Pollution Control Federation for operation and maintenance consideration during the planning design, construction, and operation of wastewater treatment facilities. (CS)

  16. Reliability-based maintenance evaluations and standard preventive maintenance programs

    International Nuclear Information System (INIS)

    Varno, M.; McKinley, M.

    1993-01-01

    Due to recent issuance of 10CFR50.65, the U.S. Nuclear Regulatory Commission maintenance rule (Rule), and the open-quotes Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plantsclose quotes prepared by the Nuclear Management and Resources Council, many utilities are undertaking review or evaluation of current preventive maintenance (PM) programs. Although PM optimization and documentation are not specifically required by the Rule, an appropriate and effective PM program (PMP) will be the cornerstone of the successful and cost-effective implementation of the Rule. Currently, a project is being conducted at the Vermont Yankee Nuclear Power Station (VYNPS) in conjunction with Quadrex Energy Services to evaluate, optimize, and document the PMP. The project began in March 1993 and is scheduled for completion in mid-1995. The initial scope for the project is the evaluation of those structures, systems, and components that are within the scope of the Rule. Because of the number of systems to be evaluated (∼50), the desired completion schedule, and cost considerations, a streamlined approach to PM optimization and documentation is being utilized

  17. Construction et Maintenance des Entrepôts de Données Hétérogènes

    Directory of Open Access Journals (Sweden)

    Faouzi Boufarès

    2007-06-01

    Full Text Available This work describes the construction of a data warehouse by the integration of heterogeneous relational and object-relational data. In fact, developing intelligent tools for the integration of information extracted from multiple heterogeneous sources is a challenging issue to effectively exploit the numerous sources available in global information systems. Due to the heterogeneity of the sources, various languages of interrogation and different data models are used for the warehouses. Thus the construction of the latter can be made in several manners. Our work is based on the extraction of the inter-schema relationships between the sources. Related to this, a global schema is generated and the views of the data warehouse are constructed. A maintenance procedure is also presented to mitigate the insufficiency of Oracle.

  18. Track 5: safety in engineering, construction, operations, and maintenance. Reactor physics design, validation, and operating experience. 5. A Negative Reactivity Feedback Device for Actinide Burner Cores

    International Nuclear Information System (INIS)

    Driscoll, M.J.; Hejzlar, P.

    2001-01-01

    Lead-bismuth eutectic (LBE) cooled reactors are of considerable interest because they may be useful for destruction of actinides in a cost-effective manner, particularly cores fueled predominantly with minor actinides, which gain reactivity with burnup. However, they also pose several design challenges: 1. a small (and perhaps even slightly positive) Doppler feedback; 2. small effective delayed neutron yield; 3. a small negative feedback from axial fuel expansion; 4. positive coolant void and temperature coefficients for conventional designs. This has motivated a search for palliative measures, leading to conceptualization of the reactivity feedback device (RFD). The RFD consists of an in-core flask containing helium gas, tungsten wool, and a small reservoir of LBE that communicates with vertical tubes housing neutron absorber floats. The upper part of these guide tubes contains helium gas that is vented into a separate, cooler ex-core helium gas plenum. The principle of operation is as follows: 1. The tungsten wool, hence the helium gas in the in-core plenum, is heated by gammas and loses heat to the walls by convection and conduction (radiation is feeble for monatomic gases and, in any event, intercepted by the tungsten wool). An energy balance determines the gas temperature, hence, pressure, which is 10 atm here. The energy loss rate can be adjusted by using xenon or a gas mixture in place of helium. The tungsten wool mass, which is 1 vol% wool here, can also be increased to increase gamma heating and further retard convection; alternatively, a Dewar flask could be used in place of the additional wool. 2. An increase in core power causes a virtually instantaneous increase in gamma flux, hence, gas heatup: The thermal time constant of the tungsten filaments and their surrounding gas film is ∼40 μs. 3. The increased gas temperature is associated with an increased gas pressure, which forces more liquid metal into the float guide tubes: LBE will rise ∼100 cm

  19. Development of preventive maintenance procedures and schedules

    International Nuclear Information System (INIS)

    Schlenker, H.V.; Hammel, J.

    1977-01-01

    An outline of the procedures and schedules developed for preventive maintenance in power stations within the Rheinisch-Westfaelisches Elektrizitaetswerk (RWE) is presented. After an introduction of maintenance in general the different kinds of preventive maintenance activities are described. This includes also the prerequisite identification systems. The aims of preventive maintenance and the measures are explained that have to be taken, if these aims are to be achieved. A number of examples from actual practice are cited. (orig.) [de

  20. Military Construction: Process and Outcomes

    Science.gov (United States)

    2016-12-14

    barracks, schools, hospitals, child development centers, and other facilities needed to support U.S. military forces at home and overseas. This military...and programming into the President’s budget could take three or more years. Furthermore, it is important to note that only those projects that have...travel, fuel, minor construction projects of $1M or less, training and education , and depot maintenance, and base operations support. O&M

  1. Maintenance and Revitalization of Gallo

    DEFF Research Database (Denmark)

    Nolan, J. Shaun

    2018-01-01

    promotion organizations comprising teachers, linguists, enthusiasts, and activists are working hard at a local and regional level to ensure that there is a greater awareness of the existence of this language variety and to foster an appreciation of the importance of its maintenance and revitalization....... Whether these efforts will help Gallo become more used in eastern Brittany’s everyday sociolinguistic landscape remains to be seen. However, Gallo promotional organizations appear to be establishing the symbolic and cultural value of Gallo as part of Brittany’s languages, and are thereby solidifying...

  2. Peace maintenance and political messages

    DEFF Research Database (Denmark)

    McAtackney, Laura

    2011-01-01

    The role of wall murals – as both territorial markers and as a means of maintaining and reinforcing identity – has been a frequent subject of study as a way of understanding the recent conflict in Northern Ireland, euphemistically known as ‘the Troubles’ (c. 1969–c. 1998). Whilst the heightened p......-essentializing their existence. It is suggested that there is a need to contextualize and consider the current and potential role of walls in the maintenance of peace and facilitating a ‘new’ Northern Ireland....

  3. Maintenance philosophy and program at Cernavoda NPP

    International Nuclear Information System (INIS)

    Bobos, M.; Enciu, G.

    1994-01-01

    Maintenance plays a key role in ensuring safe and reliable operation. An effective maintenance program should ensure that installed equipment operates when needed and the equipment malfunctions or deficiencies are corrected in time and rarely recur. Maintenance includes not only the activities traditionally associated with identifying or correcting current or potential equipment deficiencies but also extends to supporting technical functions for the conduct of these activities (for example, engineering, technical support, chemistry control, radiological protection, industrial safety and training). The maintenance management program should clearly define the relationship among these supporting groups as it is related to overall plant maintenance and promotes the concept of a successful integrated team effort. (Author)

  4. The construction of power grid operation index system considering the risk of maintenance

    Science.gov (United States)

    Tang, Jihong; Wang, Canlin; Jiang, Xinfan; Ye, Jianhui; Pan, Feilai

    2018-02-01

    In recent years, large-scale blackout occurred at home and abroad caused widespread concern about the operation of the grid in the world, and the maintenance risk is an important indicator of grid safety. The barrier operation of the circuit breaker exists in the process of overhaul of the power grid. The operation of the different barrier is of great significance to the change of the power flow, thus affecting the safe operation of the system. Most of the grid operating status evaluation index system did not consider the risk of maintenance, to this end, this paper from the security, economy, quality and cleanliness of the four angles, build the power grid operation index system considering the risk of maintenance.

  5. Electric motor predictive and preventive maintenance guide

    International Nuclear Information System (INIS)

    Oliver, J.A.

    1992-07-01

    Electric motor performance is vital to the reliable and efficient operation of power plants. The failure of one or more critical motors could cause lost capacity and excessive repair and maintenance cost. However, existing maintenance recommendations proposed by vendors for electric motors have sometimes encouraged many overly conservative maintenance practices. These practices have lead to excessive maintenance activities and costs which have provided no extra margin of operability. EPRI has sponsored RP2814-35 to develop a guide which provides power plants with information and guidance for establishing an effective maintenance program which will aid in preventing unexpected motor failures and assist in planning motor maintenance efforts. The guide includes a technical description which summarizes technical data relative to the four basic types of motors and their components in general use in power plants. The significant causes of motor failures are investigated and described in detail and methods to optimize service life and minimize maintenance cost through appropriate preventive maintenance and conditioning program are presented. This guide provides a foundation for an effective electric motor maintenance program and simplifies the selection of predictive and preventive maintenance tasks. Its use will enable maintenance personnel in nuclear and fossil plants to plan motor repairs during scheduled outages and avoid costly unexpected failures

  6. Construction and maintenance of SUNY facilities at the National Synchrotron Light Source. Progress report, 1 July 1983-1 July 1984. Final report

    International Nuclear Information System (INIS)

    Bigeleisen, J.

    1984-01-01

    Research reported includes beamline facilities, X-21 beamline update, SUNY-PRT participation in the design and commissioning of the CHESS crystallography facility, surface physics, material and structure studies using EXAFS, x-ray standing wave studies of surfaces and interfaces, and surface diffraction of adsorbed polyatomic molecules

  7. Waterproofing with polymeric geo synthetic barriers (GBR-P) in the manual for the design, construction, management and maintenance of reservoirs; La impermeabilizacion con barreras geosinteticas polimericas (GBR-P) en el manual para el diseno, construccion, explotacion y mantenimiento de balsas

    Energy Technology Data Exchange (ETDEWEB)

    Blanco, M.; Cea, J. C.; Garcia, F.; Sanchez, F. J.; Castillo, F.; Mora, J.; Crespo, M. A.

    2010-07-01

    This article presents a part of Manual for the Design, Construction, Management and Maintenance of Reservoirs relative to waterproofing with Polymeric Geo synthetic Barriers (GBR-P). the nature materials of geo membranes is studied also theirs characteristics and specifications. (Author) 26 refs.

  8. Handbook for the design, construction and maintenance of mine haulage roads. Manual para el diseno, construccion y mantenimiento de pista mineras

    Energy Technology Data Exchange (ETDEWEB)

    Ayala Carcedo, F J; Ortiz, D U.F.P.; Lopez, J C; Rodriguez Ortiz, J M; Kraemer, H C; Val, M M.A.D.

    1986-01-01

    The publication gives some easy guide-lines for the design and execution of surface mine roads, and their auxiliary elements, within the technical possibilities and equipment normally available in mining operations. A methodology for the mining haulage is proposed, taking into consideration the geometric and functional conditions of the surface mine haulage road and the vehicles used. 25 refs., 58 figs., 31 tabs., 10 photos.

  9. Construction and maintenance of SUNY facilities at the National Synchrotron Light Source. Progress report, 1 October 1981-1 July 1982

    International Nuclear Information System (INIS)

    Bigeleisen, J.

    1982-01-01

    Development of the SUNY beam line at the National Synchrotron Light Source is described. The line now includes monochromator/mirror optics with tandem arrangement of experiments. The beamline computer system is now working with CAMAC data acquisition, and a four-circle diffractometer, a small-angle-scattering bench, and a fluorescence EXAFS apparatus should be ready soon

  10. Construction and maintenance of SUNY facilities at the National Synchrotron Light Source. Progress report, 1 July 1982-1 July 1983

    International Nuclear Information System (INIS)

    Bigeleisen, J.

    1983-01-01

    Experimental facilities on the X-21 beam line at the National Synchrotron Light Source are described, and synchrotron radiation experiments performed by PRT members are discussed. The report includes a description of the beam line development stages and the experimental equipment

  11. BIM and GIS for low-disturbance construction

    NARCIS (Netherlands)

    Sebastian, R.; Böhms, H.M.; Helm, P.W. van den

    2013-01-01

    Construction and maintenance activities of bridges often bring negative impacts to the urban environment in terms of disturbance, traffic jams and disruptions, noise, dust, and air pollution. Lack of coordination between the stakeholders in strategic, tactical and operational construction planning

  12. Software Maintenance Management Evaluation and Continuous Improvement

    CERN Document Server

    April, Alain

    2008-01-01

    This book explores the domain of software maintenance management and provides road maps for improving software maintenance organizations. It describes full maintenance maturity models organized by levels 1, 2, and 3, which allow for benchmarking and continuous improvement paths. Goals for each key practice area are also provided, and the model presented is fully aligned with the architecture and framework of software development maturity models of CMMI and ISO 15504. It is complete with case studies, figures, tables, and graphs.

  13. Trends and Perspective in Industrial Maintenance Management

    DEFF Research Database (Denmark)

    Luxhoj, James T.; Thorsteinsson, Uffe; Riis, Jens Ove

    1997-01-01

    With increased global competition for manufacturing, many companies are seeking ways to gain competitative advanges with respect to cost, service, quality and on-time deliveries. The role that effective maintenance management plays in contributing to overall organizational productivity has received...... increased attention. Trends and perspective in industrial maintenance are presented. The result of benchmarking studies from Scandinavia and United States are also presented and compared. Case studies that examine maintenance methods, knowledge, organization and information systems in three Danish...

  14. Machinery prognostics and prognosis oriented maintenance management

    CERN Document Server

    Yan, Jihong

    2014-01-01

    This book gives a complete presentatin of the basic essentials of machinery prognostics and prognosis oriented maintenance management, and takes a look at the cutting-edge discipline of intelligent failure prognosis technologies for condition-based maintenance.  Latest research results and application methods are introduced for signal processing, reliability moelling, deterioration evaluation, residual life prediction and maintenance-optimization as well as applications of these methods.

  15. Inspection of licensee - Maintenance programme and activities

    International Nuclear Information System (INIS)

    2013-01-01

    An effective maintenance programme is critical to sustained safe and reliable operation of nuclear power plants. The Working Group on Inspection Practices (WGIP) concluded that when a licensee has an effective maintenance programme, the overall operating safety of the plant is improved and the protection of public health and safety enhanced. All Regulatory Bodies (RB) consider maintenance to be an important area for oversight. Although a variety of inspection practices are being used; RB are actively monitoring licensee performance. Specifically the following conclusions were reached and commendable practices identified: - Maintenance oversight by regulators appears to be in a stable continuous improvement state. Most regulators are executing inspection oversight based on an existing regulatory framework. - The performance of a licensee's maintenance programme is recognized as important part of maintaining nuclear safety. The result of the maintenance program assessment is included in the overall performance assessment of a license. - Maintenance inspection activities are recognized as an important part of the regulatory oversight process. Inspection activities are based on the safety significance and nature of work being performed by the licensee. - The effectiveness of the maintenance inspection activities is recognized to rely on properly qualified inspectors; who are adequately supported by specialists. Training and qualification of inspectors should be based on how the RB reviews and inspects licensee maintenance programmes. - Reporting requirements are identified to provide information on the licensees maintenance programme, and to help guide inspection activities. - Performance Indicators are recognized as a useful tool for helping focus regulatory activities. Basic PI are identified and tracked by the RB, and use of PI by the licensee is monitored. - Inspections are designed to confirm that the licensee is planning and scheduling maintenance with due

  16. Void Fraction Instrument operation and maintenance manual

    International Nuclear Information System (INIS)

    Borgonovi, G.; Stokes, T.I.; Pearce, K.L.; Martin, J.D.; Gimera, M.; Graves, D.B.

    1994-09-01

    This Operations and Maintenance Manual (O ampersand MM) addresses riser installation, equipment and personnel hazards, operating instructions, calibration, maintenance, removal, and other pertinent information necessary to safely operate and store the Void Fraction Instrument. Final decontamination and decommissioning of the Void Fraction Instrument are not covered in this document

  17. Maintenance and Repair of Concrete Structures

    NARCIS (Netherlands)

    Bijen, J.M.J.M.

    1989-01-01

    In 1987 and 1988 a series of articles was published in the Dutchjournal "Cement" about maintenance and repair of concrete structures. The series was written to promote the transfer of know-how concerning maintenance and repair of concrete structures. Use has been made of know-how developed in the

  18. VEHICLE REPAIR AND MAINTENANCE COSTS IN NIGERIA ...

    African Journals Online (AJOL)

    A standard model was established for the prediction of repair and maintenance costs of vehicles in a non-profit making government parastatal. The model was derived based on data collected over a ten year period from a non-profit making government parastatal, and it predicts repair and maintenance costs as a linear ...

  19. Principles of machine operation and maintenance

    CERN Document Server

    Jeffrey, Dick

    2013-01-01

    This book explains how rotating machinery works, and the role of the maintenance engineer in ensuring its proper operation. Stress is laid on the need for the trainee engineer to develop skills in diagnosis and troubleshooting as well as practicalexpertise in maintenance procedures.

  20. Service and Maintenance - Lillgrund Offshore Wind Farm. Lillgrund Pilot Project

    Energy Technology Data Exchange (ETDEWEB)

    Soederberg, David; Weisbach, Henrik (Vattenfall Vindkraft AB, Stockholm (Sweden))

    2008-11-15

    This report aims to provide information of, and experiences from, service and maintenance of Lillgrund Offshore Wind Farm. The report deals with operation and maintenance (O and M) during construction, commissioning and the first three months of operation. Focus has been to describe the organization and cooperation between Vattenfall and Siemens. Experiences have been collected by interviews with representatives from Siemens and Vattenfall. The O and M strategy defined by Lillgrund's service and maintenance contract are based on a gradual take over of O and M. Siemens will be responsible for maintenance of Lillgrund during the first five years. During this five-year period, Vattenfall will build up its own maintenance organization for Lillgrund. The first three years, Vattenfall's technicians are supposed to form 30 % of the total number of maintenance technicians. The fourth and fifth year, the corresponding amount should be 50 %. During daytime, Lillgrund is operated locally. During nights and weekends, it is operated remotely by Vattenfall's operating centre in Esbjerg. The major O and M experience from Lillgrund is the need for good administrative and technical information systems. These systems should be implemented as soon as possible because of the large amounts of documentation that are created during the commissioning phase. The technical information systems must be able to present historic data of measurements in order to see trends and analyse faults

  1. Sensor/signal monitoring and plant maintenance

    International Nuclear Information System (INIS)

    Ciftcioglu, Oe.; Tuerkcan, E.

    1994-02-01

    Nuclear Power Plant (NPO) availability is determined by the intended functionality of safety related system and components. Therefore, maintenance is an important issue in a power plant connected to the plant's reliability and safety. The traditional maintenance policies proved to be rather costly and even not effectively addressing NPP requirements. Referring to these drawbacks, in the last decade, in the nuclear reliability centered maintenance (RCM) gained substantial interest due to its merits. In the formal implementation of RCM, apparently, predictive maintenance is not considered. However, with the impact of modern real-time and on-line surveillance and monitoring methodologies, the predictive maintenance procedures like sensor/signal verification and validation are to be included into RCM. (orig.)

  2. Maintenance and Outage Management Assessment (MOMA)

    International Nuclear Information System (INIS)

    2005-01-01

    The competitive environment has significant implications for nuclear power plant (NPP) operations, which include, inter alia, the need for efficient use of resources and effective management of plant activities of maintenance and outages. The purpose of NPP maintenance and outages is to allow NPPs to use all those functions necessary for safe and reliable power production by keeping them available and adequate maintenance programme is essential. The maintenance programme covers all preventive and remedial measures, both administrative and technical, necessary to identify and mitigate degradation of a functioning system, structure or component, or restore the design functions of a failed system, structure or component to an acceptable level. In response to the needs of MSs, NPES (Nuclear Power Section, Division of Nuclear Power, IAEA) plans to strengthen its services. NPES services will not only continue to provide its 'traditional' products of publications of nuclear industrial best practices and technical implementation of TC projects on plant maintenance and outage management, but also be expanded to deliver, in a timely manner, technical support missions as requested by MSs for NPPs. One of many services is Maintenance and Outage Management Assessment (MOMA). The NPP can obtain support and assistance in assessment and optimisation of its maintenance program and/or outage management. It aims to help the NPP improve its performance of maintenance and outage in a competitive nuclear power business environment. The specific benefits of the assessment are as follows: a) disseminate nuclear industrial best practices on maintenance program and outage management in the world, b) benchmark, evaluate and optimise the approach of maintenance program and outage management and c) identify solutions to known problems at nuclear power plants, if any. MOMA is conducted at the request of NPPs of any IAEA Member States. MOMA consists in a technical mission/visit for 1-3 weeks by

  3. Test and maintenance of the emergency power supply in the nuclear power plant Biblis

    International Nuclear Information System (INIS)

    Kotthoff, K.; Huren, H.

    1986-01-01

    Besides design and construction test and maintenance play an important role for the availability of the emergency power supply. As an example test and maintenance provided for the emergency power supply in a German 4-loop PWR will be described. In general one has to differentiate between test and maintenance performed during power operation of the plant and those carried out during the refuelling outage. For both periods of operation detailed information will be given including type, extent and frequency of test and maintenance work. The results of test and maintenance up to now will be discussed. (authors)

  4. Test and maintenance of the emergency power supply in the nuclear power plant Biblis

    Energy Technology Data Exchange (ETDEWEB)

    Kotthoff, K. [Gesellschaft fuer Reaktorsicherheit - GRS mbH, Schwertnergasse 1, D-5000 Koeln 1, Cologne (Germany); Huren, H. [Rheinisch-Westfaelisches Elektrizitaetswerk AG, Betriebsverwaltung Biblis, Biblis (Germany)

    1986-02-15

    Besides design and construction test and maintenance play an important role for the availability of the emergency power supply. As an example test and maintenance provided for the emergency power supply in a German 4-loop PWR will be described. In general one has to differentiate between test and maintenance performed during power operation of the plant and those carried out during the refuelling outage. For both periods of operation detailed information will be given including type, extent and frequency of test and maintenance work. The results of test and maintenance up to now will be discussed. (authors)

  5. Criteria for maintenance and repair - LMFBR steam generators

    International Nuclear Information System (INIS)

    Essebaggers, J.

    1975-01-01

    The maintenance and repair criteria will be reviewed with respect to the designs presently under construction for the SNR-300 plant. This criteria shall be based upon the philosophy that safety and reliability are of the highest importance at all operating modes, while availability shall be maximized. To maximize the safety of the steam generator, measures have been taken to reduce the possibilities of failure by simplicity in design, choice of material, methods of fabrication and high quality assurance of critical parts of the pressure boundaries. The maintenance and repair program shall meet the same criteria or the intent of these criteria as applied for the original product. (author)

  6. A proactive condition-based maintenance strategy with both perfect and imperfect maintenance actions

    International Nuclear Information System (INIS)

    Do, Phuc; Voisin, Alexandre; Levrat, Eric; Iung, Benoit

    2015-01-01

    This paper deals with a proactive condition-based maintenance (CBM) considering both perfect and imperfect maintenance actions for a deteriorating system. Perfect maintenance actions restore completely the system to the ‘as good as new’ state. Their related cost are however often high. The first objective of the paper is to investigate the impacts of imperfect maintenance actions. In fact, both positive and negative impacts are considered. Positive impact means that the imperfect maintenance cost is usually low. Negative impact implies that (i) the imperfect maintenance restores a system to a state between good-as-new and bad-as-old and (ii) each imperfect preventive action may accelerate the speed of the system's deterioration process. The second objective of the paper is to propose an adaptive maintenance policy which can help to select optimally maintenance actions (perfect or imperfect actions), if needed, at each inspection time. Moreover, the time interval between two successive inspection points is determined according to a remaining useful life (RUL) based-inspection policy. To illustrate the use of the proposed maintenance policy, a numerical example finally is introduced. - Highlights: • A new imperfect maintenance model for deterioration system is proposed. • Both positive and negative impacts of an imperfect maintenance action are investigated. • An adaptive condition-based maintenance policy is introduced. • The optimal number of useful imperfect maintenance actions for each life cycle is optimally provided

  7. 75 FR 4099 - Maintenance Wage Rate Wage Recommendation and Maintenance Wage Survey; Report of Additional...

    Science.gov (United States)

    2010-01-26

    ... DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT [Docket No. FR-5376-N-06] Maintenance Wage Rate Wage Recommendation and Maintenance Wage Survey; Report of Additional Classification and Wage Rate AGENCY: Office of... proposal. The information is used by HUD to determine or adopt prevailing wage rates for maintenance...

  8. 75 FR 37457 - Maintenance Wage Rate Wage Recommendation and Maintenance Wage Survey; Report of Additional...

    Science.gov (United States)

    2010-06-29

    ... DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT [Docket No. FR-5376-N-54] Maintenance Wage Rate Wage Recommendation and Maintenance Wage Survey; Report of Additional Classification and Wage Rate AGENCY: Office of... proposal. The information is used by HUD to determine or adopt prevailing wage rates for maintenance...

  9. Grounds Maintenance Equipment and Procedures. Building Maintenance. Module VI. Instructor's Guide.

    Science.gov (United States)

    Crank, Virgil

    This curriculum guide, one of six modules keyed to the building maintenance competency profile developed by industry and education professionals, provides materials for two units on grounds maintenance equipment and procedures. The first unit deals with grounds maintenance equipment and includes the following lessons: safety; changing oil/filter…

  10. Operation and maintenance of the technical installations in buildings

    DEFF Research Database (Denmark)

    Nielsen, O.(red.)

    The report contains twelve papers from a seminar on operation and maintenance, held at the Danish Building Research Institute in October 1976. The papers deal, among other things, with dimensioning and balancing of pipesystems, design of ventilating systems for adequate operation and maintenance,......, cost and quality in maintenance, maintenance service companies, as well as organization and training for building services maintenance....

  11. Operation and maintenance of offshore wind farms

    DEFF Research Database (Denmark)

    Petersen, Kristian R.; Madsen, Erik Skov; Bilberg, Arne

    The offshore wind industry is booming and larger, more efficient wind-turbines have constantly been introduced into the market. However, research within the field of the operation and maintenance (O&M) of offshore wind farms is limited as the field is still immature. In this paper, two current ma...... maintenance models - RCM and TPM - are discussed in this context. Furthermore, through a case study, the paper looks into Modularization and SSLP, as these concepts can be utilized to optimize maintenance. This is a new approach for the offshore wind industry....

  12. Condition-based maintenance for complex systems : Coordinating maintenance and logistics planning for the process industries

    NARCIS (Netherlands)

    Olde Keizer, Minou Catharina Anselma

    2016-01-01

    Maintenance planning in the process industries is extremely complex for various reasons. Plants often run nonstop, allowing little time for performing preventive maintenance. Failures should be prevented, however, as they can lead to system downtime and high losses of revenue. Corrective maintenance

  13. Relationship Maintenance on Facebook: Development of a Measure, Relationship to General Maintenance, and Relationship Satisfaction

    Science.gov (United States)

    Dainton, Marianne

    2013-01-01

    Previous research indicates that the primary reason college students use Facebook is for relationship maintenance. The present study sought to determine the relationship between Facebook maintenance and general maintenance efforts in college student romantic relationships, as well as the impacts of such behaviors on the relationship. Survey data…

  14. Manufacture and maintenance of laboratory equipment

    Energy Technology Data Exchange (ETDEWEB)

    Hwang, Chang Kyu; Hwang, Bong Ha; Lee, Jong Wha; Kim, Jong Kyun; Yeum, Ki Eon; Park, Myung Ku; Hong, Soon Eon; Choi, Ho Young; An, Dae Kyu; An, Choon; Park, In Won; Kim, Kyung Sik; Lee, Won Jae; Yoon, Ki Byung; Kim, Heung Woo; Lee, In Bae; Yeom, Jeong Hyun; Lee, Chul Ku; Sin, Keon Ju; Oh, Wan Ho; Seo, Yong Chil; Yang, Song Yeul; Lee, Young Soon; Choi, Byung Kwon; Chang, Kyung Duk [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1993-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of request working to the machine shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the machine shop is to support the successful and convenient performance of the R and D by manufacture and maintenance of all sorts of laboratory equipment. 11 tabs., 3 figs. (Author) .new.

  15. Manufacture and maintenance of laboratory equipment

    International Nuclear Information System (INIS)

    Hwang, Chang Kyu; Hwang, Bong Ha; Lee, Jong Wha; Kim, Jong Kyun; Yeum, Ki Eon; Park, Myung Ku; Hong, Soon Eon; Choi, Ho Young; An, Dae Kyu; An, Choon; Park, In Won; Kim, Kyung Sik; Lee, Won Jae; Yoon, Ki Byung; Kim, Heung Woo; Lee, In Bae; Yeom, Jeong Hyun; Lee, Chul Ku; Sin, Keon Ju; Oh, Wan Ho; Seo, Yong Chil; Yang, Song Yeul; Lee, Young Soon; Choi, Byung Kwon; Chang, Kyung Duk

    1993-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of request working to the machine shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the machine shop is to support the successful and convenient performance of the R and D by manufacture and maintenance of all sorts of laboratory equipment. 11 tabs., 3 figs. (Author) .new

  16. Manufacture and maintenance of laboratory equipment

    International Nuclear Information System (INIS)

    Kim, Jong Kyun; Hwang, Chang Kyu; Hwang, Bong Ha; Lee, Jong Wha; Yeom, Ki Eon; Park, Myung Ku; Hong, Soon Hyeon; Choi, Ho Young; An, Dae Kyu; An, Choon; Park, In Won; Kim, Kyeong Sik; Lee, In Bae; Yeom, Jeong Heon; Lee, Chul Ku; Sin, Keon Ju; Oh, Wan Ho; Choi, Byung Kwon; Chang, Kyeong Duk; Lee, Young Soon

    1995-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of a request working to the Machine Shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the Machine Shop is to support the successful and convenient performance of the Research and development by manufacture and maintenance of all sorts of laboratory equipment. 12 tabs., 5 figs. (Author) .new

  17. Manufacture and maintenance of laboratory equipment

    International Nuclear Information System (INIS)

    Kim, J. K.; Whang, C. K.; Lee, J. H.; Youm, K. Y.; Hong, S. H.; Choi, H. Y.; An, C.; Park, I. W.; Kim, K. S.; Lee, W. J.; Yoon, K. B.; Kim, H. W.; Lee, I. B.; Lee, C. K.; Youm, J. H.; Oho, W. H.; Choi, B. K.; Jang, K. D.

    1996-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of a request working to the Machine Shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the Machine Shop is to support the successful and convenient performance of the R and D by manufacture and maintenance of all sorts of laboratory equipment. (author). 9 tabs., 12 figs

  18. Manufacture and maintenance of laboratory equipment

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jong Kyun; Hwang, Chang Kyu; Hwang, Bong Ha; Lee, Jong Wha; Yeom, Ki Eon; Park, Myung Ku; Hong, Soon Hyeon; Choi, Ho Young; An, Dae Kyu; An, Choon; Park, In Won; Kim, Kyeong Sik; Lee, In Bae; Yeom, Jeong Heon; Lee, Chul Ku; Sin, Keon Ju; Oh, Wan Ho; Choi, Byung Kwon; Chang, Kyeong Duk; Lee, Young Soon [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-12-01

    This report on the manufacture and maintenance of laboratory equipment contains working contents, scope and contents of a request working to the Machine Shop, also records the principal production design, manufacture contents and a relevant working drawing. The working content and scope of the Machine Shop is to support the successful and convenient performance of the Research and development by manufacture and maintenance of all sorts of laboratory equipment. 12 tabs., 5 figs. (Author) .new.

  19. Development of an intellectual maintenance management system. Development of trouble detection and troubleshooting evaluation system

    International Nuclear Information System (INIS)

    Suda, Kazunori; Yoshikawa, Shinji; Tani, Satoshi

    1998-03-01

    Many research activities are conducted to enhance cost performance and safety of nuclear power plants operation and maintenance. Concept of autonomous operating system to equal the role of operators and of maintenance personnel with artificial intelligence and autonomous robots has been developed. An intellectual maintenance management system has been developed to be equipped with decision making functions of maintenance personnel. The intellectual maintenance management system is in charge of maintenance function of an autonomous plant, which consists of plant-wide monitoring, evaluation of component integrity, and scheduling of maintenance activities. In other words, this system should be equipped with preventive maintenance and corrective maintenance functions those are currently loaded on personnel. In this report, we discussed condition monitoring maintenance in the preventive maintenance. We also reported a sensor validation system development for machinery condition monitoring and diagnosis. We adopted distributed and cooperative system construction technique, which is expected recently in applications to large-scale plants. This system has inter-agent communication function for signal transmission and reception among distributed physics models of machineries. The system has been constructed for water/steam system of the LMFBR power plant. The system has been validated to be capable of cooperative sensor validation by the distributed set of agents, with quantitative indication of sensor deviation based on a newly developed fuzzy algorithm with inter-agent cooperation. The derived reference parameter value from the inter-agent evaluations also stands for the alternative measurement to the malfunctioned sensor. (author)

  20. Predictive Maintenance and Robotic System Design

    African Journals Online (AJOL)

    pc

    2018-03-05

    Mar 5, 2018 ... Business objectives include: reduce equipment maintenance time, reduce ... Data Acquisition: Proprietary machine diagnostic systems and sensors .... and Logistics, Volume #IPart# http://www.ifac-papersonline.net,. Identifier ...

  1. Safety of nuclear operation and maintenance

    International Nuclear Information System (INIS)

    Mori, M.; Nitta, T.; Sakai, K.

    1994-01-01

    The Kansai Electric Power Co. Inc.(Kansai EPC) aims to pursue a high quality and highly reliable operation in nuclear power generation in order to ensure safety by reducing the risk of accidents and win the confidence from the society and the public. It is emphasised that in order to realize this aim manufacturers and contractors cooperate with each other in performing high quality maintenance through plant lifetime maintenance system. TQC (Total Quality Control) activity enhances the motivation for each individual to have a quality-oriented mind and cultivate the safety culture. Under the lifetime employment practice, Kansai EPC and maintenance contractors can conduct systematic education and training, and the Maintenance Training Center helps to make it effective. 6 figs

  2. Integrated Design and Approach of Building Maintenance Management in the Built Environment

    Directory of Open Access Journals (Sweden)

    Md Azree Othuman Mydin

    2017-12-01

    Full Text Available Building maintenance is such a crucial aspect in the construction industry. The construction industry is characterized as a project-based industry that delivers one of a kind products and services. Thus, building maintenance can guarantee the safety of buildings including human health and property. To some extent, it plays as a guard to supervise the buildings protecting them being suffered collapse and deterioration. The most importantly, preparing for maintenance carried out on buildings is complex and it is related to procurement system dramatically, such as design-and-build, design-build-finance operate, and the private finance initiative and public/private partnerships, all of them need to give much consideration of operational and maintenance needs and costs which are ongoing.. This paper will focus on design and approach of building maintenance management in the construction industry.

  3. Gravel Roads: Maintenance and Design Manual

    Science.gov (United States)

    This manual was developed with a major emphasis on the maintenance of gravel roads, including some basic design elements. The purpose of the manual is to provide clear and helpful information for doing a better job of maintaining gravel roads.

  4. Analysis and modeling of rail maintenance costs

    Directory of Open Access Journals (Sweden)

    Amir Ali Bakhshi

    2012-01-01

    Full Text Available Railroad maintenance engineering plays an important role on availability of roads and reducing the cost of railroad incidents. Rail is of the most important parts of railroad industry, which needs regular maintenance since it covers a significant part of total maintenance cost. Any attempt on optimizing total cost of maintenance could substantially reduce the cost of railroad system and it can reduce total cost of the industry. The paper presents a new method to estimate the cost of rail failure using different cost components such as cost of inspection and cost of risk associated with possible accidents. The proposed model of this paper is used for a real-world case study of railroad transportation of Tehran region and the results have been analyzed.

  5. National Infrastructure Maintenance Strategy and its implementation

    CSIR Research Space (South Africa)

    Wall, K

    2008-10-01

    Full Text Available The National Infrastructure Maintenance Strategy (NIMS) was approved by Cabinet in 2006. This Strategy sets overarching policy for sector-based initiatives and describes the framework for a coordinated programme of actions. It is an essential part...

  6. PROMSYS, Plant Equipment Maintenance and Inspection Scheduling

    International Nuclear Information System (INIS)

    Morgan, D.L.; Srite, B.E.

    1986-01-01

    1 - Description of problem or function: PROMSYS is a computer system designed to automate the scheduling of routine maintenance and inspection of plant equipment. This 'programmed maintenance' provides the detailed planning and accomplishment of lubrication, inspection, and similar repetitive maintenance activities which can be scheduled at specified predetermined intervals throughout the year. The equipment items included are the typical pumps, blowers, motors, compressors, automotive equipment, refrigeration units, filtering systems, machine shop equipment, cranes, elevators, motor-generator sets, and electrical switchgear found throughout industry, as well as cell ventilation, shielding, containment, and material handling equipment unique to nuclear research and development facilities. Four related programs are used to produce sorted schedule lists, delinquent work lists, and optional master lists. Five additional programs are used to create and maintain records of all scheduled and unscheduled maintenance history. 2 - Method of solution: Service specifications and frequency are established and stored. The computer program reviews schedules weekly and prints, on schedule cards, instructions for service that is due the following week. The basic output from the computer program comes in two forms: programmed-maintenance schedule cards and programmed-maintenance data sheets. The data sheets can be issued in numerical building, route, and location number sequence as equipment lists, grouped for work assigned to a particular foreman as the foreman's equipment list, or grouped by work charged to a particular work order as the work-order list. Data sheets grouped by equipment classification are called the equipment classification list

  7. Plant life management and maintenance technologies for nuclear power plants

    International Nuclear Information System (INIS)

    Ikegami, Tsukasa; Aoki, Masataka; Shimura, Takao; Kaimori, Kimihiro; Koike, Masahiro

    2001-01-01

    Nuclear power generation occupying an important position for energy source in Japan and supplying about one third of total electric power usage is now required for further upgrading of its economics under regulation relaxation of electric power business. And, under execution retardation of its new planning plant, it becomes important to operate the already established plants for longer term and to secure their stability. Therefore, technical development in response to the plant life elongation is promoted under cooperation of the Ministry of Economics and Industries, electric power companies, literate, and plant manufacturers. Under such conditions, the Hitachi, Ltd. has progressed some technical developments on check inspection, repairs and maintenance for succession of the already established nuclear power plants for longer term under securing of their safety and reliability. And in future, by proposing the check inspection and maintenance program combined with these technologies, it is planned to exert promotion of maintenance program with minimum total cost from a viewpoint of its plant life. Here were described on technologies exerted in the Hitachi, Ltd. such as construction of plant maintenance program in response to plant life elongation agreeing with actual condition of each plant, yearly change mechanism grasping, life evaluation on instruments and materials necessary for maintenance, adequate check inspection, repairs and exchange, and so forth. (G.K.)

  8. Longview District Operations and Maintenance Headquarters: Environmental assessment

    International Nuclear Information System (INIS)

    1992-03-01

    Bonneville Power Administration (BPA) operations and maintenance staff are presently based at a headquarters next to the Longview Substation. These headquarters buildings, however, were built in 1941 and have deteriorated to the point of needing extensive repair. They also lack sufficient inside storage space. New buildings cannot be constructed on the site because of surrounding development. In addition, the site is within an area exposed to industrial fallout (coal tar pitch and metallic particles) that may be damaging buildings, equipment, and vehicles. BPA is concerned about the potential health risk to headquarters staff from the fallout. In light of these problems, BPA proposes to construct a new operations and maintenance headquarters at a different location, and to demolish the existing headquarters. This paper discusses the environmental impacts of the proposed action and alternatives

  9. Systematic maintenance analysis with decision support method and tool for optimizing maintenance programme

    International Nuclear Information System (INIS)

    Laakso, K.; Simola, K.; Dorrepaal, J.; Skogberg, P.

    1999-01-01

    This report describes an approach to evaluate the effectiveness of test and maintenance programs of technical systems used during several years. The method combines an analysis of the historical data on faults and repairs with an analysis of the history of periodic testing and preventive maintenance action programs. The application of the maintenance analysis from the methodological point of view in the reliability centered maintenance (RCM) project for Barsebaeck nuclear power plant is described. In order to limit the analysis resources, a method for ranking of objects for maintenance analysis is needed. Preliminary suggestions for changes in maintenance action programs are based on signals from simple maintenance indicators and qualitative analysis of underlying data on failures and maintenance. To facilitate generation of maintenance indicators, and make the maintenance analysis more efficient, a powerful and suitable data treatment tool is needed for analysis of the work order history. In the final maintenance decisions, additional decision criteria must be taken into account, and thus a more formal decision analysis is often needed for decision support. (au)

  10. LHCb Online Log Analysis and Maintenance System

    CERN Document Server

    Garnier, J-C

    2011-01-01

    History has shown, many times computer logs are the only information an administrator may have for an incident, which could be caused either by a malfunction or an attack. Due to the huge amount of logs that are produced from large-scale IT infrastructures, such as LHCb Online, critical information may be overlooked or simply be drowned in a sea of other messages. This clearly demonstrates the need for an automatic system for long-term maintenance and real time analysis of the logs. We have constructed a low cost, fault tolerant centralized logging system which is able to do in-depth analysis and cross-correlation of every log. This system is capable of handling O(10000) different log sources and numerous formats, while trying to keep the overhead as low as possible. It provides log gathering and management, Offline analysis and online analysis. We call Offline analysis the procedure of analyzing old logs for critical information, while Online analysis refer to the procedure of early alerting and reacting. ...

  11. STARFIRE remote maintenance and reactor facility concept

    International Nuclear Information System (INIS)

    Graumann, D.W.; Field, R.E.; Lutz, G.R.; Trachsel, C.A.

    1981-01-01

    A total remote maintenance facility has been designed for all equipment located within the reactor building and hot cell, although operational flexibility has been provided by design of the reactor shielding such that personnel access into the reactor building within 24 hours after reactor shutdown is possible. The reactor design permits removal and replacement of all components if necessary, however, the vacuum pumps, isolation valves and blanket require scheduled, routine maintenance. Reactor scheduled maintenance does not dominate annual plant downtime, therefore, several scheduled operations can be added without affecting reactor availability. The maintenance facilities consist of the reactor building, the hot cell, the reactor service area and the remote maintenance control room. The reactor building contains the reactor, selected support system modules, and required maintenance equipment. The reactor and the support systems are maintained with (1) equipment that is mounted on a monorail system; (2) overhead cranes; and (3) bridge-mounted electromechanical manipulators. The hot cell is located outside of the reactor building to localize contamination products and permit independent operation. An equipment air lock connects the reactor building to the hot cell

  12. Sustainable construction: construction and demolition waste reconsidered.

    Science.gov (United States)

    del Río Merino, Mercedes; Izquierdo Gracia, Pilar; Weis Azevedo, Isabel Salto

    2010-02-01

    Construction activity in Europe has increased substantially in the past decade. Likewise, there has also been a commensurate rise in the generation of construction and demolition waste (C&DW). This, together with the fact that in many European countries the rate of recycling and reuse of C&DW is still quite low has engendered a serious environmental problem and a motivation to develop strategies and management plans to solve it. Due to its composition, there is a significant potential to reuse and/or recycle C&DW, and thereby, contribute to improving the sustainability of construction and development, but practical procedures are not yet widely known or practiced in the construction industry. This article (a) summarizes the different applications that are presently practiced to optimize the recovery and/or application of C&DW for reuse, and (b) proposes various measures and strategies to improve the processing of this waste. The authors suggest that to enhance environmental effectiveness, a conscious and comprehensive C&DW management plan should be implemented in each jurisdiction. More precisely, this study presents a holistic approach towards C&DW management, through which environmental benefits can be achieved through the application of new construction methods that can contribute to sustainable growth.

  13. Human errors related to maintenance and modifications

    International Nuclear Information System (INIS)

    Laakso, K.; Pyy, P.; Reiman, L.

    1998-01-01

    The focus in human reliability analysis (HRA) relating to nuclear power plants has traditionally been on human performance in disturbance conditions. On the other hand, some studies and incidents have shown that also maintenance errors, which have taken place earlier in plant history, may have an impact on the severity of a disturbance, e.g. if they disable safety related equipment. Especially common cause and other dependent failures of safety systems may significantly contribute to the core damage risk. The first aim of the study was to identify and give examples of multiple human errors which have penetrated the various error detection and inspection processes of plant safety barriers. Another objective was to generate numerical safety indicators to describe and forecast the effectiveness of maintenance. A more general objective was to identify needs for further development of maintenance quality and planning. In the first phase of this operational experience feedback analysis, human errors recognisable in connection with maintenance were looked for by reviewing about 4400 failure and repair reports and some special reports which cover two nuclear power plant units on the same site during 1992-94. A special effort was made to study dependent human errors since they are generally the most serious ones. An in-depth root cause analysis was made for 14 dependent errors by interviewing plant maintenance foremen and by thoroughly analysing the errors. A more simple treatment was given to maintenance-related single errors. The results were shown as a distribution of errors among operating states i.a. as regards the following matters: in what operational state the errors were committed and detected; in what operational and working condition the errors were detected, and what component and error type they were related to. These results were presented separately for single and dependent maintenance-related errors. As regards dependent errors, observations were also made

  14. Human factor analysis and preventive countermeasures of maintenance in nuclear power plant

    International Nuclear Information System (INIS)

    Zhang Li; Hu Chao

    2008-01-01

    Based on the human error analysis theory and the characteristics of maintenance in a nuclear power plant, human factors of maintenance in NPP are divided into three different areas: human, technology, and organization, in which human refers to the individual factors, mainly including psychological quality, physiological characteristic, state of health, knowledge, skill level, and interpersonal relationship. Technology includes the maintenance technology, maintenance strategy, maintenance tool, maintenance interface, maintenance regulation, and work environment. Organization includes task arrangement, information communication, training, personnel external environment, team construction, and leadership. The analysis also reveals that the organization factors, which can indirectly influence personnel performance, are the primary initiators of human error. Based on these, some countermeasures are brought forward in order to reduce human errors. (authors)

  15. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 4 Report: Virtual Mockup Maintenance Task Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-02-28

    Task 4 report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. This report focuses on using Full-scale virtual mockups for nuclear power plant training applications.

  16. Generation IV Nuclear Energy Systems Construction Cost Reductions through the Use of Virtual Environments - Task 4 Report: Virtual Mockup Maintenance Task Evaluation

    International Nuclear Information System (INIS)

    Timothy Shaw; Anthony Baratta; Vaughn Whisker

    2005-01-01

    Task 4 report of 3 year DOE NERI-sponsored effort evaluating immersive virtual reality (CAVE) technology for design review, construction planning, and maintenance planning and training for next generation nuclear power plants. Program covers development of full-scale virtual mockups generated from 3D CAD data presented in a CAVE visualization facility. This report focuses on using Full-scale virtual mockups for nuclear power plant training applications

  17. Employment and winter construction

    DEFF Research Database (Denmark)

    Hansen, Ernst Jan de Place; Larsen, Jacob Norvig

    2011-01-01

    Reduced seasonal building activity in the construction sector is often assumed to be related to hard winter conditions for building activities and poor working conditions for construction workers, resulting in higher costs and poor quality of building products, particularly in the northern hemisp...... of contracts for workers is more likely to explain differences in seasonal activity than climatic or technological factors....

  18. Performance-based inspection and maintenance strategies

    International Nuclear Information System (INIS)

    Vesely, W.E.

    1995-01-01

    Performance-based inspection and maintenance strategies utilize measures of equipment performance to help guide inspection and maintenance activities. A relevant measure of performance for safety system components is component unavailability. The component unavailability can also be input into a plant risk model such as a Probabilistic Risk Assessment (PRA) to determine the associated plant risk performance. Based on the present and projected unavailability performance, or the present and projected risk performance, the effectiveness of current maintenance activities can be evaluated and this information can be used to plan future maintenance activities. A significant amount of information other than downtimes or failure times is collected or can be collected when an inspection or maintenance is conducted which can be used to estimate the component unavailability. This information generally involves observations on the condition or state of the component or component piecepart. The information can be detailed such as the amount of corrosion buildup or can be general such as the general state of the component described as ' high degradation', ' moderate degradation', or ' low degradation'. Much of the information collected in maintenance logs is qualitative and fuzzy. As part of an NRC Research program on performance-based engineering modeling, approaches have been developed to apply Fuzzy Set Theory to information collected on the state of the component to determine the implied component or component piecepart unavailability. Demonstrations of the applications of Fuzzy Set Theory are presented utilizing information from plant maintenance logs. The demonstrations show the power of Fuzzy Set Theory in translating engineering information to reliability and risk implications

  19. Road Maintenance in Africa: Approaches and Perspectives

    Directory of Open Access Journals (Sweden)

    M Mostafa Hassan

    2018-01-01

    Full Text Available In Africa, roads are the dominant mode of passenger and freight transport, for which the need is growing rapidly. It is noticeable that most of the African countries do not do enough to ensure the sustainability of road infrastructure as it has been widely reported that roads are affected, to varying degrees, by premature deterioration. Most of the African countries have adopted institutional reforms, notably entailing the creation of road funds and road agencies, and made significant progress on road maintenance. However, many challenges remain to be addressed in all of them to ensure appropriate maintenance. Although spending on road maintenance has increased over time in all African countries it remains insufficient to cover the needs. Poorly maintained roads constrain mobility, significantly raise vehicle operating costs, increase accident rates and their associated human and property costs, and aggravate isolation, poverty, poor health, and illiteracy in rural communities. This paper focuses, in particular, on road maintenance in some African countries considering types of road maintenance and the different approaches aiming at a comparison to reflect on similarities and differences.

  20. Road Maintenance in Africa: Approaches and Perspectives

    Science.gov (United States)

    M, Mostafa Hassan

    2018-06-01

    In Africa, roads are the dominant mode of passenger and freight transport, for which the need is growing rapidly. It is noticeable that most of the African countries do not do enough to ensure the sustainability of road infrastructure as it has been widely reported that roads are affected, to varying degrees, by premature deterioration. Most of the African countries have adopted institutional reforms, notably entailing the creation of road funds and road agencies, and made significant progress on road maintenance. However, many challenges remain to be addressed in all of them to ensure appropriate maintenance. Although spending on road maintenance has increased over time in all African countries it remains insufficient to cover the needs. Poorly maintained roads constrain mobility, significantly raise vehicle operating costs, increase accident rates and their associated human and property costs, and aggravate isolation, poverty, poor health, and illiteracy in rural communities. This paper focuses, in particular, on road maintenance in some African countries considering types of road maintenance and the different approaches aiming at a comparison to reflect on similarities and differences.

  1. Nuclear instrument maintenance - problems, solutions, and obstacles

    International Nuclear Information System (INIS)

    Vuister, P.H.

    1983-01-01

    In 200 laboratories of South-East Asia, Latin America and Africa a survey was made of the state of instrumentation for nuclear medicine. The principal cause of failures and defects was inadequate quality control and preventive maintenance. On the basis of the survey coordinated research programs were compiled for the maintenance of nuclear instruments. The four principal points of the programs are: to safeguard quality and stable electric power supplies for the instruments, to safeguard permanent temperature and humidity in the environment in which the equipment is operated, effective maintenance, and training of personnel. In the years 1981 and 1982, 14 local training courses were run in which emphasis was put on practicals and tests in mechanics and electronics

  2. A Planned Preventive Maintenance Program. A Handbook for Chief Business Officers and Supervisors of Maintenance with Suggestions on Maintenance for Consideration by Presidents of Higher Institutions.

    Science.gov (United States)

    Daniel, Clarence H.

    This handbook explains planned preventive maintenance program, which is an operational system of maintenance designed to increase the effectiveness of the maintenance staff and the use of maintenance funds through efficient scheduling of inspections and follow-through of work to be performed. Sections are included for the chief administrative…

  3. Construction and Demolition Waste

    DEFF Research Database (Denmark)

    Christensen, Thomas Højlund; Andersen, L.

    2011-01-01

    Construction and demolition waste (C&D waste) is the waste generated during the building, repair, remodeling or removal of constructions. The constructions can be roads, residential housing and nonresidential buildings. C&D waste has traditionally been considered without any environmental problems...... should be managed accordingly. Another reason is that it has been documented that a large fraction of C&D waste (about 90 %) can be easily recycled and thus can conserve landfill capacity. C&D waste may conveniently be divided into three subcategories: Buildings, roads and excavations. This chapter...

  4. Maintenance and management of refills NPP Cofrentes

    International Nuclear Information System (INIS)

    Salar, J.; Blanquer, N.

    2014-01-01

    Maintenance in a nuclear power plant is a discipline that requires considering multiple criteria. Many risks can be involved during the jobs execution, and the preparation of activities needs an important knowledge and experience. During outages, many pieces of equipment are reviewed and inspected, and there is a huge increase of the number of risks and variables needed to perform and adequate preparation, coordination and execution of the maintenance activities. Cofrentes Nuclear Power Plant has improved the Outage preparation organization, in order to get more people involved, and make sure that all the critical parameters have been considered for each outage work. (Author)

  5. Ship construction and welding

    CERN Document Server

    Mandal, Nisith R

    2017-01-01

    This book addresses various aspects of ship construction, from ship types and construction materials, to welding technologies and accuracy control. The contents of the book are logically organized and divided into twenty-one chapters. The book covers structural arrangement with longitudinal and transverse framing systems based on the service load, and explains basic structural elements like hatch side girders, hatch end beams, stringers, etc. along with structural subassemblies like floors, bulkheads, inner bottom, decks and shells. It presents in detail double bottom construction, wing tanks & duct keels, fore & aft end structures, etc., together with necessary illustrations. The midship sections of various ship types are introduced, together with structural continuity and alignment in ship structures. With regard to construction materials, the book discusses steel, aluminum alloys and fiber reinforced composites. Various methods of steel material preparation are discussed, and plate cutting and form...

  6. ATLAS Maintenance and Operation management system

    CERN Document Server

    Copy, B

    2007-01-01

    The maintenance and operation of the ATLAS detector will involve thousands of contributors from 170 physics institutes. Planning and coordinating the action of ATLAS members, ensuring their expertise is properly leveraged and that no parts of the detector are understaffed or overstaffed will be a challenging task. The ATLAS Maintenance and Operation application (referred to as Operation Task Planner inside the ATLAS experiment) offers a fluent web based interface that combines the flexibility and comfort of a desktop application, intuitive data visualization and navigation techniques, with a lightweight service oriented architecture. We will review the application, its usage within the ATLAS experiment, its underlying design and implementation.

  7. Planning and control of maintenance systems modelling and analysis

    CERN Document Server

    Duffuaa, Salih O

    2015-01-01

    Analyzing maintenance as an integrated system with objectives, strategies and processes that need to be planned, designed, engineered, and controlled using statistical and optimization techniques, the theme of this book is the strategic holistic system approach for maintenance. This approach enables maintenance decision makers to view maintenance as a provider of a competitive edge not a necessary evil. Encompassing maintenance systems; maintenance strategic and capacity planning, planned and preventive maintenance, work measurements and standards, material (spares) control, maintenance operations and control, planning and scheduling, maintenance quality, training, and others, this book gives readers an understanding of the relevant methodology and how to apply it to real-world problems in industry. Each chapter includes a number exercises and is suitable as a textbook or a reference for a professionals and practitioners whilst being of interest to industrial engineering, mechanical engineering, electrical en...

  8. Construction, fabrication, and installation

    International Nuclear Information System (INIS)

    1992-05-01

    This standard specifies the construction, fabrication, and installation requirements that apply to concrete containment structures of a containment system designated as class containment components, parts and appurtenances for nuclear power plants

  9. Construction and material specification

    Science.gov (United States)

    2002-01-01

    These Construction and Material Specifications are written to the Bidder before award of the : Contract and to the Contractor after award of the Contract. The sentences that direct the Contractor to perform Work are written as commands. For example, ...

  10. Valve leakage inspection testing and maintenance process

    International Nuclear Information System (INIS)

    Aikin, J.A.; Reinwald, J.W.; Kittmer, C.A.

    1991-01-01

    In valve maintenance, packing rings that prevent leakage along the valve stem must periodically be replaced, either during routine maintenance or to correct a leak or valve malfunction. Tools and procedures currently in use for valve packing removal and inspection are generally of limited value due to various access and application problems. A process has been developed by AECL Research that addresses these problems. The process, using incompressible fluid pressure, quickly and efficiently confirms the integrity of the valve backseat, extracts hard-to-remove valve packing sets, and verifies the leak tightness of the repacked valve

  11. Optimal maintenance work organization and technical education

    International Nuclear Information System (INIS)

    Toshiro Kitamura

    2005-01-01

    Under Japanese multi-layered maintenance routines, almost 100% of work is delegated to outside contractors. For taking such form, there are several reasons unique to Japan. U.S. maintenance work organization makes a contrast, reducing the volume of subcontract in these past ten years. On the other hand, France has a trend of increasing the volume of subcontract for cost reduction that is expected in liberalization and privatization. In Japan, since the subcontract went too far, there is a trend that the multi-layered subcontract structure will be relieved. The Japan Atomic Power, Inc., has organized a team that performs a part of maintenance work by employees themselves since three years before. Direct work is effective to greatly supporting the employees' technical ability. It is expected that the quality of subcontract management will be markedly improved from now on. (author)

  12. ICD Complex Operations and Maintenance Plan

    Energy Technology Data Exchange (ETDEWEB)

    Gibson, P. L.

    2007-06-25

    This Operations and Maintenance (O&M) Plan describes how the Idaho National Laboratory (INL) conducts operations, winterization, and startup of the Idaho CERCLA Disposal Facility (ICDF) Complex. The ICDF Complex is the centralized INL facility responsible for the receipt, storage, treatment (as necessary), and disposal of INL Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) remediation waste.

  13. Automobile Starting and Lighting System Maintenance Training ...

    African Journals Online (AJOL)

    The purpose of this study is to develop automobile starting and lighting system maintenance training manual for technical college students. Research and Development (R and D) design was adopted for the study. The population of the study is 348, comprising of 76 auto-mechanics teachers, 36 automobile supervisors and ...

  14. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Chong Eun; Moon, Byung Soo; Hong, Suk Boong; Kim, Jung Bok

    1999-12-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the performance of the data processing system of RMS, and also modified the cyclic box using PLC which is a facility for airborne monitoring in radiation area. (author)

  15. Constructability and maintainability

    International Nuclear Information System (INIS)

    Hart, R.S.

    1985-01-01

    A set of principles for minimizing the construction schedule was established at the outset of the CANDU 300 programme. Consideration of these principles and other factors led to the development of the unique CANDU 300 station layout. The paper discusses the CANDU 300 station layout and construction methods. In summary, the station layout provides 360 deg. construction access to all buildings, separation of nuclear and non-nuclear systems, precise and minimal physical interfaces between buildings, accommodation of many contractors and construction activities without interference, and maximum flexibility in terms of constructional, financial and supply arrangements. The CANDU 300 further employs modularization, shop fabrication and advanced instrumentation (multiplexers, remote processors, data highways) to minimize construction time. Many of the CANDU 300 features that enhance constructability also contribute to maintainability. These include the 360 deg. access to all principal buildings, the uncluttered and spacious building layouts, the simplification of systems and the high level of modularization. The CANDU 300 has also been designed to facilitate the replacement of all key components, thereby offering an essentially unlimited station life. A prime example is a reduction in the fuel channel inlet end-fitting diameter such that the fuel channels can be shop assembled and easily replaced after the initial 40 years of operation, without an extended unit outage. Maintainability within the reactor building has been given particular attention in the CANDU 300 design; key features of other CANDU reactors (the ability to replace a heat transport system pump motor at power, for example) have been incorporated, while accessibility and maintainability of all systems and components have been enhanced. These and other aspects of maintainability are discussed. (author)

  16. Safety and maintenance engineering: A compilation

    Science.gov (United States)

    1974-01-01

    A compilation is presented for the dissemination of information on technological developments which have potential utility outside the aerospace and nuclear communities. Safety of personnel engaged in the handling of hazardous materials and equipment, protection of equipment from fire, high wind, or careless handling by personnel, and techniques for the maintenance of operating equipment are reported.

  17. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Han, Kwang Soo; Jeong, Jong Eun; Park, Kwang Hyeon; Hong, Suk Bong; Moon, Je Sun; Choi, Myeong Jin; Kim, Seung Bok; Kim, Jeong Bok

    1994-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation costs of the pilot plants in KAERI. In addition, we have imposed the maintainability of instruments to use effectively. 15 tabs., 14 figs., 14 refs. (Author) .new

  18. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Han, Kwang Soo; Chung, Chong Eun; Park, Kwang Hyeon; Hong, Suk Boong; Moon, Je Sun; Choi, Myung Jin; Kim, Seung Bok; Kim, Jung Bok

    1996-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. (author). 10 refs., 18 tabs., 8 figs.

  19. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Han, Kwang Soo; Chung, Chong Eun; Park, Kwang Hyeon; Hong, Suk Boong; Moon, Je Sun; Choi, Myung Jin; Kim, Seung Bok; Kim, Jung Bok.

    1996-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. (author). 10 refs., 18 tabs., 8 figs

  20. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Han, Kwang Soo; Jeong, Jong Eun; Park, Kwang Hyun; Hong, Suk Bong; Moon, Je Sun; Choi, Myung Jin; Kim, Seung Bok; Kim, Jeong Bok

    1995-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation costs of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. 18 tabs., 17 figs., 13 refs. (Author) .new

  1. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Han, Kwang Soo; Jeong, Jong Eun; Park, Kwang Hyun; Hong, Suk Bong; Moon, Je Sun; Choi, Myung Jin; Kim, Seung Bok; Kim, Jeong Bok [Korea Atomic Energy Research Institute, Taejon (Korea, Republic of)

    1995-12-01

    Solving the maintenance and repair problems of electronic instruments, we have supported the research and development work, and reduced operation costs of the pilot plants in KAERI. In addition, we have improved the maintainability of instruments to use effectively. 18 tabs., 17 figs., 13 refs. (Author) .new.

  2. Davis PV plant operation and maintenance manual

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-09-01

    This operation and maintenance manual contains the information necessary to run the Photovoltaics for Utility Scale Applications (PVUSA) test facility in Davis, California. References to more specific information available in drawings, data sheets, files, or vendor manuals are included. The PVUSA is a national cooperative research and demonstration program formed in 1987 to assess the potential of utility scale photovoltaic systems.

  3. The quality of electric services and maintenance

    International Nuclear Information System (INIS)

    Fernandez-Campa Barcelona, J.M.

    1994-01-01

    It describes the perturbations of the electric grids and their repercussions in the receivers. It is contemplated in the present spanish legislation, in reference to the compensation to the users for maintenance cost and is detected his actual inoperativity for reasons of harmonization of the electric characteristics in the area of E.C. (Author)

  4. Epigenetic Regulation of Memory Formation and Maintenance

    Science.gov (United States)

    Zovkic, Iva B.; Guzman-Karlsson, Mikael C.; Sweatt, J. David

    2013-01-01

    Understanding the cellular and molecular mechanisms underlying the formation and maintenance of memories is a central goal of the neuroscience community. It is well regarded that an organism's ability to lastingly adapt its behavior in response to a transient environmental stimulus relies on the central nervous system's capability for structural…

  5. Kaunas gas, Lithuania. Operation and maintenance report. Final report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-03-01

    The main objective of this project was to transfer knowledge accumulated in Denmark about modern techniques of natural gas distribution to employees of the Lithuanian gas sector by informing them about modern measuring equipment and evaluating the results. The main objectives were: To improve the efficiency of maintenance and repair works of the distribution network in Kaunas; To decrease the number of leakages and to improve the operation of the cathodic protection system; To ensure protection of the pipelines and to avoid damages on other constructions and installations. The project consisted of four components which will all exert an influence on the future rehabilitation of steel pipe networks in the gas sector of Lithuania. The components were the following: Preparation of Operation and Maintenance Manual for Kaunas Gas Company; Cathodic measuring and pilot investigation; Analysis and improvement of the organisation of the Kaunas Gas Company; Training material for cathodic protection in Lithaunia. (au)

  6. Construcción y empleo de los diagramas C-Q. Una vía para minimizar los costos de operación y mantenimiento de los sistemas de bombeo de pozos profundos. // Construction and use of diagrams C-Q. A road to minimize the operating costs and maintenance of the

    Directory of Open Access Journals (Sweden)

    R. Morales

    2009-05-01

    Full Text Available En el trabajo se plantea la necesidad de establecer un Sistema de Mantenimiento Preventivo porcondición técnica para los pozos profundos de regadío del estado de Cojedes en la RepúblicaBolivariana de Venezuela, debido a que el alto porcentaje de sólidos por unidad de volumen deagua provoca el desgaste acelerado de diferentes elementos de máquinas de las bombas, lo quetrae consigo que se acorte la vida útil de dichas máquinas, así como se incrementen sus costos deoperación. Como resultado de la investigación se hace una propuesta de procedimiento paraconstruir los diagramas C-Q y con su uso poder determinar cuando es necesario realizar elmantenimiento de los pozos y de esa forma evitar las fallas prematuras en las bombas y minimizarlos costos de la operación y mantenimiento del sistema pozo-bomba.Palabras claves: diagnóstico, rapidez de cambio, estado técnico, mantenimiento, parámetros decondición, parámetros de salida.______________________________________________________________________________AbstractThis paper exposes the need of establishing a Preventive Maintenance System, for technicalcondition, for the irrigated artesian wells at Cojedes's state, in the Bolivarian Venezuelan Republic.Due to the high solids percentage per water volume unit, the wear of different hardware elementsof the pumps is accelerated. This fact provokes the shortening of the service life of theaforementioned hardware and consequently the increase in operating costs. As a research resultthis article presents a procedure proposal to construct C-Q diagrams to determine when it will benecessary to accomplish the well maintenance. In that way one can avoid premature faults inpumps and minimize the operation and maintenance costs of the pumping system.Key words: diagnostic, speed of change, technical status, maintenance, parameters of condition,outgoing parameters.

  7. Oil coastal tanker maintenance and availability

    Energy Technology Data Exchange (ETDEWEB)

    Goldsztejn, Eduardo; Gomez Haedo, Juan Carlos [Government' s Oil Company of Uruguay (ANCAP), Montivideo (Uruguay)

    2008-07-01

    ANCAP (Government's Oil Company of Uruguay) owns a 4000 DWT oil coastal tanker which is mainly used for oil transport in the River Plate, Uruguay and Parana rivers. Availability of the ship is critical because of shortage of available vessels in the region. Full maximum draught of the vessel is 4m , so it can navigate in very shallow waters as it is the case of some places in the Uruguay and Parana rivers. Although the ship was built in 1979, it is a complete double hull, powered by two twin main engines and propellers. Since 1994, several changes in maintenance management have been introduced, in order to increase the availability, thus increasing the total oil volume yearly transported. These changes affected several maintenance items and they also included a modification in the design of part of the cargo tank floors of the ship. As a result of these changes, an increase of 60% of the oil derivatives volume transported yearly was achieved. In this paper, some of the important improvements on maintenance practises and management are described, together with a quantification of their influence on vessel's availability and overall maintenance costs. (author)

  8. Military Construction, Military Quality of Life and Veterans Affairs: FY2007 Appropriations

    National Research Council Canada - National Science Library

    Else, Daniel H; Scott, Christine; Panangala, Sidath V

    2007-01-01

    ... construction, military housing allowances, military installation maintenance and operation, the Department of Veterans Affairs, and other veteran-related agencies, rested in the House Committee...

  9. Lineage Selection and the Maintenance of Sex

    Science.gov (United States)

    de Vienne, Damien M.; Giraud, Tatiana; Gouyon, Pierre-Henri

    2013-01-01

    Sex predominates in eukaryotes, despite its short-term disadvantage when compared to asexuality. Myriad models have suggested that short-term advantages of sex may be sufficient to counterbalance its twofold costs. However, despite decades of experimental work seeking such evidence, no evolutionary mechanism has yet achieved broad recognition as explanation for the maintenance of sex. We explore here, through lineage-selection models, the conditions favouring the maintenance of sex. In the first model, we allowed the rate of transition to asexuality to evolve, to determine whether lineage selection favoured species with the strongest constraints preventing the loss of sex. In the second model, we simulated more explicitly the mechanisms underlying the higher extinction rates of asexual lineages than of their sexual counterparts. We linked extinction rates to the ecological and/or genetic features of lineages, thereby providing a formalisation of the only figure included in Darwin's “The origin of species”. Our results reinforce the view that the long-term advantages of sex and lineage selection may provide the most satisfactory explanations for the maintenance of sex in eukaryotes, which is still poorly recognized, and provide figures and a simulation website for training and educational purposes. Short-term benefits may play a role, but it is also essential to take into account the selection of lineages for a thorough understanding of the maintenance of sex. PMID:23825582

  10. Two Different Maintenance Strategies in the Hospital Environment: Preventive Maintenance for Older Technology Devices and Predictive Maintenance for Newer High-Tech Devices.

    Science.gov (United States)

    Sezdi, Mana

    2016-01-01

    A maintenance program generated through the consideration of characteristics and failures of medical equipment is an important component of technology management. However, older technology devices and newer high-tech devices cannot be efficiently managed using the same strategies because of their different characteristics. This study aimed to generate a maintenance program comprising two different strategies to increase the efficiency of device management: preventive maintenance for older technology devices and predictive maintenance for newer high-tech devices. For preventive maintenance development, 589 older technology devices were subjected to performance verification and safety testing (PVST). For predictive maintenance development, the manufacturers' recommendations were used for 134 high-tech devices. These strategies were evaluated in terms of device reliability. This study recommends the use of two different maintenance strategies for old and new devices at hospitals in developing countries. Thus, older technology devices that applied only corrective maintenance will be included in maintenance like high-tech devices.

  11. Reliability and construction control

    Directory of Open Access Journals (Sweden)

    Sherif S. AbdelSalam

    2016-06-01

    Full Text Available The goal of this study was to determine the most reliable and efficient combination of design and construction methods required for vibro piles. For a wide range of static and dynamic formulas, the reliability-based resistance factors were calculated using EGYPT database, which houses load test results for 318 piles. The analysis was extended to introduce a construction control factor that determines the variation between the pile nominal capacities calculated using static versus dynamic formulae. From the major outcomes, the lowest coefficient of variation is associated with Davisson’s criterion, and the resistance factors calculated for the AASHTO method are relatively high compared with other methods. Additionally, the CPT-Nottingham and Schmertmann method provided the most economic design. Recommendations related to a pile construction control factor were also presented, and it was found that utilizing the factor can significantly reduce variations between calculated and actual capacities.

  12. RA reactor operation and maintenance

    International Nuclear Information System (INIS)

    Zecevic, V.

    1963-02-01

    This volume includes the final report on RA reactor operation and utilization of the experimental facilities in 1962, detailed analysis of the system for heavy water distillation and calibration of the system for measuring the activity of the air

  13. The operation and maintenance manual

    International Nuclear Information System (INIS)

    Klein, W.; Krotil, H.; Stoll, A.

    1975-01-01

    The Operating Manual is one of many technical documents which the nuclear power plant operator needs for ensuring safe operation. For the operating staff, however, there is only one document, namely the Operating Manual. It contains, appropriately arranged, the necessary system and other diagrams, drawings, lists, licensing documents and similar material, which are necessary for understanding the design, for testing, for obtaining the operating licence and for the operation of individual systems and of the entire plant. (orig./RW) [de

  14. Hotspot and sampling analysis for effective maintenance and performance monitoring.

    Science.gov (United States)

    2017-05-01

    In this project, we propose two sampling methods addressing how much and where the agencies need to collect infrastraucture condition data for accurate Level-of-Maintenance (LOM) estimation in maintenance network with single type or multiple ty...

  15. Anticipation, prospective and exceptional maintenance

    International Nuclear Information System (INIS)

    Hedin, F.; Mesnage, J.

    1996-01-01

    The experience return has shown it: to evaluate the threats for the park on the materials or systems, to have at one's disposal the right answers, is a necessity for safety and competitiveness of the nuclear kWh. We present the technical, industrial and organisation bases on which future is prepared, especially to engineering plans, R and D, operational aspects. Some examples illustrate the approach. (N.C.)

  16. Stem cell function and maintenance

    Indian Academy of Sciences (India)

    Stem cell research holds a promise to treat and prevent age-related degenerative changes in humans. Literature is replete with studies showing that stem cell function declines with aging, especially in highly proliferative tissues/organs. Among others, telomerase and telomere damage is one of the intrinsic physical ...

  17. Steam generator operation and maintenance

    International Nuclear Information System (INIS)

    Lee, C.K.

    2004-01-01

    Corrosion of steam generator tube has resulted in the need for extensive repair and replacement of steam generators. Over the past two decades, steam generator problems in the United States were viewed to be one of the most significant contributor to lost generation in operating PWR plants. When the SGOG-I (Steam Generator Owners Groups) was formed in early 1977, denting was responsible for almost 90% of the tube plugging. By the end of 1982, this figure was reduced to less than 2%. During the existence of SGOG-II (from 1982 to 1986), IGA/SCC (lntergranular Attack/Stress Corrosion Cracking) in the tube sheet, primary side SCC, pitting, and fretting surfaced as the primary causes of tube degradation. Although significant process has been made with wastage and denting, the utilities experience shows that the percentage of reactors plugging tubes and the percentage of tubes being plugged each year has remained relatively constant. The diversity of the damage mechanisms means that no one solution is likely to resolve all problems. The task of maintaining steam generator integrity continues to be formidable and challenging. As the older problems were brought under control, many new problems emerged. SGOG-II (Steam Generator Owners Group program from 1982 to 1986) has focused on these problem areas such as tube stress corrosion cracking (SCC) and intergranular attack (IGA) in the open tube sheet crevice, primary side tube cracking, pitting in the lower span, and tube fretting in preheated section and anti-vibration bar (AVB) locations. Primary Water Stress Corrosion Cracking (PWSCC) in the tube to tubesheet roll transition has been a wide spread problem in the Recirculation Steam Generators (RSG) during this period. Although significant progress has been made in resolving this problem, considerable work still remains. One typical problem in the Once Through Steam Generator (OTSG) was the tube support plate broached hole fouling which affects the OTSG steam generating

  18. The operation and maintenance manual

    International Nuclear Information System (INIS)

    Stoll, A.; Krotil, H.; Klein, W.

    1976-01-01

    The operating manual is one of many technical documents which the nuclear power plant operator needs for ensuring safe operation. For the operating staff, however, there is only one document, namely the operating manual. The operating manual is an essential element in bringing man and machine in harmony. This is necessary for safe and, as far as possible, uninterrupted operation of the power plant. The operating manual is the only document containing binding instructions for plant operation. All the tasks of plant operation which are carried out by plant staff are described in the operating manual in a form which is as clear and comprehensible as possible. A considerable number of these tasks can only be carried out by man, namely: 1) tasks concerning operational organization, 2) all non-automated areas of plant operation. (orig./TK) [de

  19. Child Custody, Visitation and Maintenance ...

    African Journals Online (AJOL)

    Nigussie Afesha

    2017-12-30

    Dec 30, 2017 ... The important thing here is fixing or determining which custody arrangement is ..... assuring the child's safety.86 Hence, supervised visitation can be ordered to ... safety, physical or mental health or other adverse effects on the feelings and emotional .... However, “In case of death, disability, unworthiness or.

  20. Check and maintenance strategies and practice

    International Nuclear Information System (INIS)

    Buettner, W.E.

    1982-01-01

    There exists no uniform test and maintenance strategy for instrumentation and control in German nuclear power plants. The procedures vary according to the plant type (PWR or BWR), the utility and the licensing authority responsible for the plant, but there are common aspects and also requirements from regulatory guides. This common main aspects are treated and exemplified in this lecture. The lecture is confined to operational procedures and preoperational or commissioning tests will be not described in spite of the fact that commissioning procedures may look like operational procedures. (orig./RW)

  1. Remote assembly and maintenance of fusion reactors

    International Nuclear Information System (INIS)

    Becquet, M.C.; Farfaletti-Casali, F.

    1991-01-01

    This paper intend to present the state of the art in the field of remote assembly and maintenance, including system analysis design and operation for controlled fusion device such as JET, and the next NET and ITER reactors. The operational constraints of fusion reactors with respect to temperature, radiations dose rates and cumulated doses are considered with the resulting design requirements. Concepts like articulated boom, in-vessel vehicle and blanket handling device are presented. The close relations between computer simulations and experimental validation of those concepts are emphasized to ensure reliability of the operational behavior. Mockups and prototypes in reduced and full scale, as operating machines are described to illustrate the progress in remote operations for fusion reactors. The developments achieved at the Institute for System Engineering and Informatics of the Joint Research Center, in the field of remote blanket maintenance, reliability assessment of RH systems and remote cut and welding of lips joints are considered. (author)

  2. Advances in new WWER designs to improve operation and maintenance

    International Nuclear Information System (INIS)

    Dragunov, Y.G.; Ryzhov, S.B.; Podshibiakin, A.K.; Vasilchenko, I.N.; Repin, A.I.; Nikitenko, M.P.; Konoplev, N.P.; Fil, N.S.

    2000-01-01

    Economic operational indices of WWER-type reactors show their competitiveness in all the countries where these reactors operate. Advanced WWERs being designed and constructed now have the improved characteristics of economical efficiency and are more convenient for operation and maintenance. Many technical solutions aimed at improvement of the operational performance are implemented in the design of WWER-1000/V-392 and WWER-640/V-407, and these reactors are the important basis for the nuclear power expansion in Russia. Some of these solutions are considered in the present paper. (author)

  3. Housing and construction

    Science.gov (United States)

    Delton Alderman

    2014-01-01

    OECD economies, in aggregate, have been sluggish; unemployment remains high in several countries, and minimal gross domestic product gains are forecast for the Euro area through 2016. Recession, sovereign debt problems and lethargic economies continue to constrain Europe’s housing construction market; no improvement is expected before 2015 or...

  4. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Chung, Chong Eun; Moon, Byung Soo; Hong, Suk Boong; Kim, Yong Keun; Kim, Jung Bok

    2001-12-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and made it done effectively in KAERI. In addition, we have improved the performance of the alarming system of the unit211 in PIEF and the lamp control module(IND100) in RWTF using PLCs. And also, electronic circuit modules for MAFF system which is an instrument for airborne monitoring in radiation area have been designed and fabricated

  5. Optimization and maintenance tests considering multiple failure modes, aging and imperfect maintenance

    International Nuclear Information System (INIS)

    Martorell, S.; Marton, I.; Sanchez, A.; Carlos, S.

    2014-01-01

    The paper focuses on the optimization of the test and maintenance intervals under the criteria of unavailability or cost including the effect of the aging of the components and models of imperfect maintenance. The results obtained in the case of application, which focuses on a system of safety of a nuclear power station, show differences, mainly in the outage when you consider the aging. (Author)

  6. Maintenance, repair and operation (MRO) of shutdown facilities

    International Nuclear Information System (INIS)

    Kenny, S.

    2006-01-01

    What level of maintenance does one apply to a shutdown facility? Well it depends on who you ask. Operations staff sees facilities that have completed their useful life cycle as a cost drain while Decommissioning staff sees this as the start of a new life cycle. Based on the decommissioning plan for the particular facility the building could complete another full life cycle while under decommissioning whether it is in storage with surveillance mode or under active decommissioning. This paper will explore how you maintain a facility and systems for many years after its useful life until final decommissioning is completed. When a building is declared redundant, who looks after it until the final decommissioning end state is achieved? At the AECL, Chalk River Labs site the safe shutdown and turnover process is one key element that initiates the decommissioning process. The real trick is orchestrating maintenance, repair and operation plans for a facility that has been poorly invested in during its last years of useful life cycle. To add to that usually shutdowns are prolonged for many years beyond the expected turnover period. During this presentation I will cover what AECL is doing to ensure that the facilities are maintained in a proper state until final decommissioning can be completed. All facilities or systems travel through the same life cycle, design, construction, commissioning, operation, shutdown and demolition. As we all know, nuclear facilities add one more interesting twist to this life cycle called Decommissioning that lands between shutdown and demolition. As a facility nears the shutdown phase, operations staff loose interest in the facility and stop investing in upgrades, repairs and maintenance but continue to invest and focus on maximizing operations. Facility maintenance standards produced by the International Facility Maintenance Association (IFMA) based on a survey done every year state that 2.2% of the total operating costs for the site should be

  7. Maintenance and material aspects of DREAM reactor

    International Nuclear Information System (INIS)

    Ueda, S.; Nishio, S.; Yamada, R.; Seki, Y.; Kurihara, R.; Adachi, J.; Yamazaki, S.

    2000-01-01

    A concept of a commercial fusion power reactors (Fusion Power: 5.5 GW, electric output: 2.7 GW) having high environmental safety, high thermal efficiency and high availability has been studied in JAERI. The gross reactor configuration was designed to achieve good maintainability, high performance breeding blanket, high efficient power generation system and little radwastes. Design was based on the use of low activation structural material (SiC/SiC composites) and helium as a coolant. In this paper, maintenance and material aspects of DREAM reactor design is discussed. The concluding remarks are as follows. (1) The difficulty of development of maintenance tool is alleviated by sector replacement and the radiation dose environment less than 10 Gy/h in a reactor chamber. (2) Design requirement and present status of SiC/SiC composites was investigated. (3) The SiC/SiC composite development program is planned to satisfy the requirements of DREAM reactor

  8. Reliability and risk treatment centered maintenance

    International Nuclear Information System (INIS)

    Pexa, Martin; Hladik, Tomas; Ales, Zdenek; Legat, Vaclav; Muller, Miroslav; Valasek, Petr; Havlu, Vit

    2014-01-01

    We propose a new methodology for application of well-known tools - RCM, RBI and SIF pro - with the aim to treat risks by means of suitable maintenance. The basis of the new methodology is the complex application of all three methods at the same time and not separately as is typical today. The proposed methodology suggests having just one managing team for reliability and risk treatment centred maintenance (RRTCM), employing existing RCM, RBI, and SIFpro tools concurrently. This approach allows for significant reduction of engineering activities' duration. In the proposed methodology these activities are staged into five phases and structured to eliminate all duplication resulting from separate application of the three tools. The newly proposed methodology saves 45% to 50% of the engineering workload and dequate significant financial savings.

  9. Reliability and risk treatment centered maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Pexa, Martin; Hladik, Tomas; Ales, Zdenek; Legat, Vaclav; Muller, Miroslav; Valasek, Petr [Czech University of Life Sciences Prague, Kamycka (Czech Republic); Havlu, Vit [Unipetrol A. S, Prague (Czech Republic)

    2014-10-15

    We propose a new methodology for application of well-known tools - RCM, RBI and SIF pro - with the aim to treat risks by means of suitable maintenance. The basis of the new methodology is the complex application of all three methods at the same time and not separately as is typical today. The proposed methodology suggests having just one managing team for reliability and risk treatment centred maintenance (RRTCM), employing existing RCM, RBI, and SIFpro tools concurrently. This approach allows for significant reduction of engineering activities' duration. In the proposed methodology these activities are staged into five phases and structured to eliminate all duplication resulting from separate application of the three tools. The newly proposed methodology saves 45% to 50% of the engineering workload and dequate significant financial savings.

  10. EHV network operation, maintenance, organization and training

    Energy Technology Data Exchange (ETDEWEB)

    Gravier, J P [Electricite de France (EDF), 75 - Paris (France)

    1994-12-31

    The service interruptions of electricity have an ever increasing social and industrial impact, it is thus fundamental to operate the network to its best level of performances. To face these changing conditions, Electricite de France has consequently adapted its strategy to improve its organization for maintenance and operation, clarify the operation procedures and give further training to the staff. This work presents the above mentioned issues. (author) 2 figs.

  11. The radiation protection and its maintenance

    International Nuclear Information System (INIS)

    Brachet, Y.; Mauclert, J.L.

    2003-01-01

    This presentation exposes the different phases of the management of an operation taking into account the dosimetry; Each phase is important; the methodology and the analysis are important. The solutions have to be pragmatic and they depend on the context. Relative to the maintenance and dismantling operations for the oldest of nuclear facilities the existence of a data base is necessary to improve the working conditions of the operators. (N.C.)

  12. MAINTENANCE OF THE CARPARK AND STREET LIGHTING

    CERN Multimedia

    ST-FM Group

    2002-01-01

    The ST Division informs you that the control and maintenance of the carpark and street lighting will be carried out during the next few weeks. These lightings work normally by photocells but during these tests they will be turned on zone by zone during the day. So we ask the users not to be surprised to see the street lighting on during the day and thank them for their comprehension. ST-FM Group

  13. Transport package maintenance requirements and operations

    International Nuclear Information System (INIS)

    Tyacke, M.J.; Ball, L.J.; Ayers, A.L. Jr.; Hayes, G.R.; Anselmo, A.A.

    1988-01-01

    The NuPac 125-B rail cask, which transports the damaged core debris from Three Mile Island Unit 2 (TMI-2) to the Idaho National Engineering Laboratory (INEL), is the only new spent-fuel rail shipping cask to be licensed in the United States within the last decade. EG ampersand G Idaho, Inc. (EG ampersand G), acting on behalf of the US Department of Energy, is responsible for ensuring that those new casks and rail cars are properly maintained per regulatory requirements. Both the casks and rail cars have comprehensive in-service inspection and preventive maintenance programs, which are more involved than implied by the requirements. The TMI-2 shipping campaign is the most ambitious spent-fuel transport activity being conducted in the nuclear industry. The experience gained in this campaign, as it relates to maintenance of a transport system, should be of interest and have direct applicability to similar shipping activities planned in the years ahead

  14. Asset Management and Facility Equipment Maintenance Nexus: Maintenance Effectiveness

    Science.gov (United States)

    2013-09-01

    MOTOR 60 CHECK ADJUSTMENT OF TEMPERATURE S\\MTCHES 70 CHECK TO\\NER MONORAIL HOIST MOTOR AND CONTROLS 71 CHECK TO\\NER HEATERS AND FAN MOTORS 80 INSPECT...SEALS 70 SERVICE TOWER MONORAILS & GATE WHEEL HOISTS 80 CHECK OIL LEVEL IN GEAR REDUCERS ( EP 140) 90 INSPECT & DRESS CABLE AT DRUM ENDS IN BOTH

  15. Burkholderia thailandensis: Growth and Laboratory Maintenance.

    Science.gov (United States)

    Garcia, Erin C; Cotter, Peggy A

    2016-08-12

    Burkholderia thailandensis is a nonpathogenic Gram-negative bacterium found in tropical soils. Closely related to several human pathogens, its ease of genetic manipulation, rapid growth in the laboratory, and low virulence make B. thailandensis a commonly used model organism. This unit describes the fundamental protocols for in vitro growth and maintenance of B. thailandensis in the laboratory. © 2016 by John Wiley & Sons, Inc. Copyright © 2016 John Wiley & Sons, Inc.

  16. Construction materials and Radon

    International Nuclear Information System (INIS)

    Paschuk, Sergei A.; Correa, Janine Nicolosi; Loriane, Fior; Schelin, Hugo R.; Pottker, Fabiana; Paula Melo, Vicente de

    2008-01-01

    Full text: Current studies have been performed with the aim to find the correlation of radon concentration in the air and used construction materials. At the first stage of the measurements different samples of materials used in civil construction were studied as a source of radon in the air and at the second step it was studied the radon infiltration insulation using different samples of finishing materials. For 222 Rn concentration measurements related to different construction materials as well as for the studies of radon emanation and its reduction, the sealed cell chambers, of approximately 60 x 60cm 2 , have been built using the ceramic and concrete blocks. This construction has been performed within protected and isolated laboratory environment to maintain the air humidity and temperature stable. These long term measurements have been performed using polycarbonate alpha track passive detectors. The exposure time was set about 15 days considering previous calibration performed at the Institute of Radiation Protection and Dosimetry (IRD/CNEN), where the efficiency of 70% was obtained for the density of alpha particle tracks about 13.8 cm -2 per exposure day and per kBq/m 3 of radon activity concentration. The chemical development of alpha tracks has been achieved by electrochemical etching. The track identification and counting have been done using a code based on the MATLAB Image Processing Toolbox. The cell chambers have been built following four principle steps: 1) Assembling the walls using the blocks and mortar; 2) Plaster installation; 3) Wall surface finishing using the lime; 4) Wall surface insulation by paint. Making the comparison between three layers installed at the masonry walls from concrete and ceramic blocks, it could be concluded that only wall painting with acrylic varnish attended the expectation and reduced the radon emanation flow by the factor of 2.5 approximately. Studied construction materials have been submitted the instant

  17. Maintenance and replacement policies under technological obsolescence

    International Nuclear Information System (INIS)

    Clavareau, Julien; Labeau, Pierre-Etienne

    2009-01-01

    The technological obsolescence of a unit is characterized by the existence of challenger units displaying identical functionalities, but with higher performances. This paper aims to define and model in a realistic way, possible maintenance policies of a system including replacement strategies when one type of challenger unit is available. The comparison of these possible strategies is performed based on a Monte Carlo estimation of the costs they incur

  18. Maintenance and replacement policies under technological obsolescence

    Energy Technology Data Exchange (ETDEWEB)

    Clavareau, Julien [Service de Metrologie Nucleaire, Universite Libre de Bruxelles, Av. Franklin Roosevelt 50, CP165/84 Bruxelles B-1050 (Belgium)], E-mail: jclavare@ulb.ac.be; Labeau, Pierre-Etienne [Service de Metrologie Nucleaire, Universite Libre de Bruxelles, Av. Franklin Roosevelt 50, CP165/84 Bruxelles B-1050 (Belgium)], E-mail: pelabeau@ulb.ac.be

    2009-02-15

    The technological obsolescence of a unit is characterized by the existence of challenger units displaying identical functionalities, but with higher performances. This paper aims to define and model in a realistic way, possible maintenance policies of a system including replacement strategies when one type of challenger unit is available. The comparison of these possible strategies is performed based on a Monte Carlo estimation of the costs they incur.

  19. SWOT Analysis of Urban Greening Maintenance and Management in the Central Pearl River Delta

    Institute of Scientific and Technical Information of China (English)

    Yanning; ZHENG; Fang; JIANG

    2013-01-01

    We take Shunde District,Foshan City in Guangdong Province for example,to carry out SWOT analysis of urban greening maintenance and management.The strengths of greening management and maintenance in Shunde District are as follows:(i)The greening area and quality are continuously improved in the downtown of Shunde District;(ii)The management and maintenance work is carried out well;(iii)The management and maintenance level tends to be increasingly perfected.The weaknesses of greening management and maintenance are as follows:(i)The fees for greening management and maintenance are very low;(ii)There is corner as yet untouched in the junction of some town streets;(iii)The greening management and maintenance technicians are unprofessional;(iv)The greening management is not in place;(v)There is management vacancy phenomenon in the management and maintenance of regional green space;(vi)The design and construction phase is flawed.Finally,based on the analysis of strengths and weaknesses of greening,we put forth the recommendations for the development of management and maintenance in urban green space.

  20. Condition-based maintenance at both scheduled and unscheduled opportunities

    NARCIS (Netherlands)

    Kalosi, S.; Kapodistria, S.; Resing, J.A.C.

    2016-01-01

    Motivated by original equipment manufacturer (OEM) service and maintenance practices we consider a single component subject to replacements at failure instances and two types of preventive maintenance opportunities: scheduled, which occur due to periodic system reviews of the equipment, and

  1. Maintenance of Traffic for Innovative Geometric Design Work Zones

    Science.gov (United States)

    2015-12-01

    Currently there are no guidelines within the Manual on Uniform Traffic Control Devices (MUTCD) on construction phasing and maintenance of traffic (MOT) for retrofit construction and maintenance projects involving innovative geometric designs. The res...

  2. Diagnostic aid and maintenance at the La Hague reprocessing plants

    International Nuclear Information System (INIS)

    Bern, J.B.; Chabert, J.

    1989-01-01

    The Cogema plant at La Hague is the world's leading nuclear fuel reprocessing plant. A major extension program was initiated in 1980. It includes the construction of a new 800 t/year capacity plant (UP3), to be commissioned in 1989, and the doubling of the capacity of the present plant (UP2 800) scheduled to go on stream in 1992. On the occasion of this huge capital investment, an overall assessment was made of the operating and maintenance systems of the site. The general objective was to achieve maximum productivity and availability, in view of: - the extreme importance of safety for the protection of workers and the environment, - the high level of automation required by the complexity of the process, - the inaccessibility of the nuclear equipment, the scale of the investment. To achieve this goal, a set of diagnostic and maintenance aid systems were developed and installed. A general site data network serves to link these systems and to distribute the corresponding data to the different users. This paper describes these different systems, presents the functionalities of the network and demonstrates the sequencing of the operations in a typical maintenance application

  3. What to Ask when Contracting for Maintenance and Custodial Services.

    Science.gov (United States)

    Crothall, Graeme A.

    1989-01-01

    Some school districts have found that maintenance and custodial services can be contracted out with cost-saving results. Contains specific questions to ask potential contractors in order to evaluate contracting for maintenance and custodial services. (MLF)

  4. Application of reliability centred maintenance to optimize operation and maintenance in nuclear power plants

    International Nuclear Information System (INIS)

    2007-05-01

    In order to increase Member States capabilities in utilizing good engineering and management practices the Agency has developed a series of Technical Documents (TECDOCs) to describe best practices and members experience in the application of them. This TECDOC describes the concept of Reliability Centred Maintenance (RCM) which is the term used to describe a systematic approach to the evaluation, design and development of cost effective maintenance programmes for plant and equipment. The concept has been in existence for over 25 years originating in the civil aviation sector. This TECDOC supplements previous IAEA publications on the subject and seeks to reflect members experience in the application of the principles involved. The process focuses on the functionality of the plant and equipment and the critical failure mechanisms that could result in the loss of functionality. When employed effectively the process can result in the elimination of unnecessary maintenance activities and the identification and introduction of measures to address deficiencies in the maintenance programme. Overall the process can result in higher levels of reliability for the plant and equipment at reduced cost and demands on finite maintenance resources. The application of the process requires interaction between the operators and the maintenance practitioners which is often lacking in traditional maintenance programmes. The imposition of this discipline produces the added benefit of improved information flows between the key players in plant and equipment management with the result that maintenance activities and operational practices are better informed. This publication was produced within IAEA programme on nuclear power plants operating performance and life cycle management

  5. Systematization of Angra-1 operation attendance - Maintenance and periodic testings

    International Nuclear Information System (INIS)

    Furieri, E.B.; Carvalho Bruno, N. de; Salaverry, N.A.

    1988-01-01

    A maintenance analysis, their types and their functions for the safety of nuclear power plants is done. Programs and present trends in the reactor maintenance, as well as the maintenance program and periodic tests of Angra I, are analysed. The necessities of safety analysis and a systematization for maintenance attendance are discussed and the periodic testing as well as the attendance of international experience. (M.C.K.) [pt

  6. Design, fabrication, and mockup testing in the Remote Maintenance Development Facility

    International Nuclear Information System (INIS)

    Carter, J.A.; Jacobs, R.T.; Bingham, G.E.

    1978-01-01

    The Remote Maintenance Development Facility (RMDF) at the Idaho National Engineering Laboratory (INEL) was installed and used extensively for full-scale development, mockup and testing of remote maintenance requirements for the New Waste Calcining Facility (NWCF). By performing remote handling tests, the NWCF handling concepts, techniques and remote capabilities were proven workable prior to construction. Presented in this paper is a description of the RMDF and its purpose, functions, and handling capabilities as they were used in support of the NWCF

  7. Design, fabrication, and mockup testing in the remote maintenance development facility

    International Nuclear Information System (INIS)

    Carter, J.A.; Jacobs, R.T.; Bingham, G.E.

    1978-01-01

    The Remote Maintenance Development Facility at the Idaho National Engineering Laboratory was installed and used extensively for full-scale development, mockup, and testing of remote maintenance requirements for the New Waste Calcining Facility (NWCF). By performing remote handling tests, the NWCF handling concepts, techniques, and remote capabilities were proven workable prior to construction. A description of the RMDF and its purpose, functions, and handling capabilities as they were used in support of the NWCF is presented

  8. Machine Maintenance Scheduling with Reliability Engineering Method and Maintenance Value Stream Mapping

    Science.gov (United States)

    Sembiring, N.; Nasution, A. H.

    2018-02-01

    Corrective maintenance i.e replacing or repairing the machine component after machine break down always done in a manufacturing company. It causes the production process must be stopped. Production time will decrease due to the maintenance team must replace or repair the damage machine component. This paper proposes a preventive maintenance’s schedule for a critical component of a critical machine of an crude palm oil and kernel company due to increase maintenance efficiency. The Reliability Engineering & Maintenance Value Stream Mapping is used as a method and a tool to analize the reliability of the component and reduce the wastage in any process by segregating value added and non value added activities.

  9. 21 CFR 58.63 - Maintenance and calibration of equipment.

    Science.gov (United States)

    2010-04-01

    ... GOOD LABORATORY PRACTICE FOR NONCLINICAL LABORATORY STUDIES Equipment § 58.63 Maintenance and... 21 Food and Drugs 1 2010-04-01 2010-04-01 false Maintenance and calibration of equipment. 58.63..., maintenance, testing, calibration, and/or standardization of equipment, and shall specify, when appropriate...

  10. Large remote manipulator operating and maintenance experience at IEM cell

    International Nuclear Information System (INIS)

    Hicks, D.F.; McGuinness, P.W.

    1985-01-01

    The Interim Examination and Maintenance (IEM) Cell at the Fast Flux Test Facility (FFTF) has two large Electro-Mechanical Manipulators (EMM's). These manipulators are used for cell operations (processing of reactor core components) as well as general cell maintenance. From our eleven years of operation and maintenance experience with these large EMM's, we have learned many lessons concerning manipulator design. This paper describes the IEM Cell EMM design features and discusses operating and maintenance experience at the IEM Cell

  11. A review of e-maintenance capabilities and challenges

    OpenAIRE

    Adolfo Crespo Marquez; Benoit Iung

    2008-01-01

    Within the era of e-manufacturing and e-business, e-maintenance provides the opportunity for a new maintenance generation. E-maintenance integrates existing telemaintenance principles, with web-services and modern e-collaboration principles. Collaboration allows not only to share and exchange information but also knowledge and (e)-intelligence. This paper outlines the basic capabilities provided by e-maintenance to companies as well as describes emerging challenges to benefit from these new o...

  12. Evaluation System and Implementation Countermeasure of Automobile Green Maintenance

    Science.gov (United States)

    Zhang, Fei; Xie, Xinxin; Yan, Chaoyong

    2018-01-01

    Green maintenance research is in the beginning of our country, the work is being explored. Based on the existing research results at home and abroad, this paper learns and draws lessons from the experiences and lessons of foreign advanced countries and domestic advanced enterprises. In the face of the challenges brought by economic development and energy saving and emission reduction, this paper discusses the green maintenance theory and security system, And the research status of green maintenance content and system at home and abroad, through the deletion and selection of green maintenance index, through the AHP method to determine the green evaluation criteria, and the introduction of C equivalent evaluation system, the use of fuzzy synthesis Evaluation method to build a green maintenance evaluation model, and the actual validation, put forward the implementation of green maintenance feasibility programs and related security recommendations, vehicle maintenance enterprises to carry out green maintenance, improve business efficiency and reduce environmental management costs to provide theoretical basis. And to achieve effective reduction of environmental pollution, reduce maintenance costs of the target, a reasonable promotion of maintenance and environmental protection and sustainable development. Promote green maintenance from research to practice, from the laboratory to the maintenance of enterprises, from the pilot to the overall development and transformation.

  13. Evaluations of maintenance effectiveness on unavailability and risk

    International Nuclear Information System (INIS)

    Vesely, W.E.

    1993-01-01

    A methodology is presented for quantifying the effectiveness of maintenance on unavailability and on risk. The methodology is based on standard Markov modeling principles. What is new is the application to quantify maintenance effectiveness by explicitly quantifying maintenance benefits as well as maintenance's negative contributions. Maintenance effects are quantified by defining a degraded state for the component in addition to an operational state and a failed state which are usually defined. The maintenance model which is developed is a natural extension of the standard models used in reliability analysis and in Probabilistic Risk Assessments (PRAs). The results which are obtained can be directly used in PRAs. Applications of the methodology are presented by quantifying maintenance effectiveness on component performance and component unavailability for specific maintenance schedules

  14. Software Maintenance and Evolution: The Implication for Software ...

    African Journals Online (AJOL)

    Software Maintenance and Evolution: The Implication for Software Development. ... Software maintenance is the process of modifying existing operational software by correcting errors, ... EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT

  15. Autonomous and professional maintenance in metallurgical enterprise as activities within total productive maintenance

    Directory of Open Access Journals (Sweden)

    B. Gajdzik

    2014-04-01

    Full Text Available The content of this publication consists of notions connected with Total Productive Maintenance (TPM in metallurgical enterprise. The basic areas of devices condition management through Autonomous and Professional Maintenance are described here. Mentioned areas of activities are performed in metallurgical enterprise ArcelorMittal Poland within pillars of World Class Manufacturing (WCM. The aims of UR programs are to maintain the basic functionality of the devices and decrease the number of failures in order to reach improvement of production efficiency.

  16. 40 CFR 63.1160 - Compliance dates and maintenance requirements.

    Science.gov (United States)

    2010-07-01

    ... corrective action within 1 working day of detection; and (iii) Maintenance of a daily record, signed by a... 40 Protection of Environment 10 2010-07-01 2010-07-01 false Compliance dates and maintenance... Facilities and Hydrochloric Acid Regeneration Plants § 63.1160 Compliance dates and maintenance requirements...

  17. THE OFFICIAL AUDIT: THE MAINTENANCE OF THE STRUCTURES AND EQUIPMENTS

    Directory of Open Access Journals (Sweden)

    Claudio Biglia

    2008-12-01

    Full Text Available The author distinguishes the ordinary maintenance in corrective, preventive and predictive maintenance and describes the importance of the verifications of the maintenance procedures of the structures and the equipmentes in the food industy. He individualizes criterions to follow for an aware detective check. This approach offers a greater guarantee of food security and a greater responsibility of OSA

  18. 40 CFR 792.63 - Maintenance and calibration of equipment.

    Science.gov (United States)

    2010-07-01

    ... SUBSTANCES CONTROL ACT (CONTINUED) GOOD LABORATORY PRACTICE STANDARDS Equipment § 792.63 Maintenance and..., maintenance, testing, calibration, and/or standardization of equipment, and shall specify, when appropriate... 40 Protection of Environment 31 2010-07-01 2010-07-01 true Maintenance and calibration of...

  19. 40 CFR 160.63 - Maintenance and calibration of equipment.

    Science.gov (United States)

    2010-07-01

    ...) PESTICIDE PROGRAMS GOOD LABORATORY PRACTICE STANDARDS Equipment § 160.63 Maintenance and calibration of..., maintenance, testing, calibration, and/ or standardization of equipment, and shall specify, when appropriate... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Maintenance and calibration of...

  20. A review of planning models for maintenance and production.

    NARCIS (Netherlands)

    G. Budai-Balke (Gabriella); R. Dekker (Rommert); R.P. Nicolai (Robin)

    2006-01-01

    textabstractIn this article we give an overview of the relation between planning of maintenance and production. On the one hand we consider production planning and scheduling models in which failures and maintenance aspects are taken into account. Next we discuss the planning of maintenance

  1. Enhanced design, operation and maintenance practices for a longer plant service life

    International Nuclear Information System (INIS)

    Raimondo, E.; Courcoux, A.

    2004-01-01

    Plant service life problems have been under detailed investigation in France and the experience acquired by our company over the past 25 years in the design, construction and maintenance of Pressurized Water Reactors has contributed to develop skills, equipment and capabilities available for efficient plant aging management and component service life extension. The service life of a nuclear power plant is deeply dependant of the provisions made during the design stage, directly linked to good operating conditions and adequate maintenance practices. This paper presents the importance of these three steps (design, operation and maintenance) for plant service life concern. (author)

  2. Maintenance and fabrication of electronic equipment

    Energy Technology Data Exchange (ETDEWEB)

    Chung, Chong Soo; Moon, Byung Soo; Hong, Suk Boong; Kim, Yong Keun; Kim, Jung Bok

    2000-12-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have improved the performance of the data processing system of RMS, and modified the cyclic box and IND100 using PLCs which are a facility for airborne monitoring in radiation area and lamp control modules of radiation monitoring control panel respectively. And also, a gamma-ray densitometer for KNGR has been designed and fabricated.

  3. The missing link between maintenance contracts and flexible asset management

    OpenAIRE

    Marttonen-Arola, Salla; Viskari, Sari; Kärri, Timo

    2013-01-01

    The paper shows how additional value can be created in maintenance collaboration through integrating the features of flexible asset management into maintenance contracts. We expand the traditional typology of maintenance contracts and introduce a new contract type, flexible asset management contracts. Also value sharing in the new contract type is discussed. Our logic for sharing the value is based on reaching for win-win situations in industrial maintenance collaboration. Finally, we present...

  4. [Maintenance and monitoring of water treatment system].

    Science.gov (United States)

    Pontoriero, G; Pozzoni, P; Tentori, F; Scaravilli, P; Locatelli, F

    2005-01-01

    Water treatment systems must be submitted to maintenance, disinfections and monitoring periodically. The aim of this review is to analyze how these processes must complement each other in order to preserve the efficiency of the system and optimize the dialysis fluid quality. The correct working of the preparatory process (pre-treatment) and the final phase of depuration (reverse osmosis) of the system need a periodic preventive maintenance and the regular substitution of worn or exhausted components (i.e. the salt of softeners' brine tank, cartridge filters, activated carbon of carbon tanks) by a competent and trained staff. The membranes of reverse osmosis and the water distribution system, including dialysis machine connections, should be submitted to dis-infections at least monthly. For this purpose it is possible to use chemical and physical agents according to manufacturer' recommendations. Each dialysis unit should predispose a monitoring program designed to check the effectiveness of technical working, maintenance and disinfections and the achievement of chemical and microbiological standards taken as a reference. Generally, the correct composition of purified water is monitored by continuous measuring of conductivity, controlling bacteriological cultures and endotoxin levels (monthly) and checking water contaminants (every 6-12 months). During pre-treatment, water hardness (after softeners) and total chlorine (after chlorine tank) should be checked periodically. Recently the Italian Society of Nephrology has developed clinical guidelines for water and dialysis solutions aimed at suggesting rational procedures for production and monitoring of dialysis fluids. It is hopeful that the application of these guidelines will lead to a positive cultural change and to an improvement in dialysis fluid quality.

  5. Operations and maintenance costs - Selected observations

    International Nuclear Information System (INIS)

    Kirk, M.W.

    1991-01-01

    The operations and maintenance (O and M) costs associated with nuclear power plants have been rising continuously over the past decade. The Nuclear Management and Resources Council (NUMARC) has undertaken an examination of this issue to determine what components of O and M costs are driven by regulatory activity. Observers from various perspectives within the nuclear industry have cited staffing, outages, training, and management structure among others as large contributors to O and M costs. NUMARC is currently analyzing utility cost data to isolate the regulatory components for further action

  6. Plant maintenance and advanced reactors, 2006

    Energy Technology Data Exchange (ETDEWEB)

    Agnihotri, Newal (ed.)

    2006-09-15

    The focus of the September-October issue is on plant maintenance and advanced reactors. Major articles/reports in this issue include: Advanced plants to meet rising expectations, by John Cleveland, International Atomic Energy Agency, Vienna; A flexible and economic small reactor, by Mario D. Carelli and Bojan Petrovic, Westinghouse Electric Company; A simple and passively safe reactor, by Yury N. Kuznetsov, Research and Development Institute of Power Engineering (NIKIET), Russia; Gas-cooled reactors, by Jeffrey S. Merrifield, U.S. Nuclear Regulatory Commission; ISI project managment in the PRC, by Chen Chanbing, RINPO, China; and, Fort Calhoun refurbishment, by Sudesh Cambhir, Omaha Public Power District.

  7. Perpetual pavement – absorbing stress and functional maintenance

    Directory of Open Access Journals (Sweden)

    Rong Gao

    2017-03-01

    Full Text Available Perpetual Pavement combines the well documented smoothness and safety advantages of asphalt with an advanced, multi-layer paving design process, that with routine maintenance, extends the useful life of a roadway. Perpetual provides long lasting road and smoothness for the construction purposes. This study has the design key points of perpetual pavement based on the idea of life cycle, which has a new direction for the new highway construction, reconstruction and expansion. First, the structure of long life pavement design is studied to analyze the effect of stress absorbing layer. Second, researches on stress absorbing layer from the aspects of raw materials, mix proportion are implemented. Third, the design index of stress absorbing layer is determined by the shear strength test. The results show that the design idea of composite perpetual pavement can be realized by reasonable design of the stress absorbing layer and carrying out the surface functional maintenance can ensure the pavement to avoid structural damage in the operation stage.

  8. Creating Value by Integrating Logistic Trains Services and Maintenance Activities

    NARCIS (Netherlands)

    Busstra, Marten; van Dongen, Leonardus Adriana Maria

    2015-01-01

    NedTrain is the Netherlands Railway's subsidiary responsible for rolling stock maintenance. Train sets are brought in for short-term routine maintenance after set intervals of some 75 to 120 days. When a major defect occurs, train sets are allocated to one of the three maintenance depots and are

  9. Balancing preventive and corrective maintenance in Cernavoda Unit 1 NPP

    International Nuclear Information System (INIS)

    Riedel, M.; Marinescu, S.

    2000-01-01

    The paper presents a short reminder of Romania's Cernavoda NPP entering commercial operation and a brief description of the CANDU-6 project on which Unit 1 is based. The short term objectives of the maintenance management, the status of the existing maintenance programmes as well as future predictable maintenance programmes are outlined together with the Government plan to complete the balance of NPP. (author)

  10. Guidelines for safe process operations and maintenance

    CERN Document Server

    2010-01-01

    First-line managers have to maintain the integrity of facilities, control manufacturing processes, and handle unusual or emergency situations, as well as respond to the pressures of production demand. On a daily basis, they are closest to the operating personnel who may be injured by a process accident, and they are in the best position to spot problem conditions and to act to contain them. This book offers these managers ""how-to"" information on process safety management program execution in the operations and maintenance departments, recommending technical and administrative process safety

  11. On maintenance management of wind and nuclear power plants

    International Nuclear Information System (INIS)

    Nilsson, Julia

    2009-11-01

    Electrical production in Sweden today is mainly from nuclear and hydro power. However, there is large increase in renewable energy like wind power and the installed new capacity goals are large. Several electrical production sources are important for the sustainability of the energy system. Maintenance is an approach for keeping a system sustainable. The importance of structured maintenance for reliable electrical production systems triggers the development of qualitative and quantitative maintenance management methods. Examples of these methods are Reliability-Centered Maintenance (RCM) which is a structured qualitative approach that focuses on reliability when planning maintenance, and Reliability Centered Asset Management (RCAM) which is a development of RCM into a quantitative approach with the aim to relate preventive maintenance to total maintenance cost and system reliability. This thesis presents models, as applications of RCAM, based on the methods of Life Cycle Cost (LCC) and mathematical optimization, applied to wind and nuclear power plants. Both deterministic and stochastic approaches have been used and the proposed models are based on the Total Cost model, which summarizes costs for maintenance and production loss, and the Aircraft model, which is an opportunistic maintenance optimization model. Opportunistic maintenance is preventive maintenance performed at opportunities. The wind power applications in this study show on different ways to cover costs of condition monitoring systems (CMS) and further on economic benefits of these when uncertainties of times to failure are included in the model. The nuclear power applications show on that the optimization model is dependent on the discount rate and that a high discount rate gives more motivation for opportunistic replacements. When put into a stochastic framework and compared to other maintenance strategies it is shown that an extended opportunistic maintenance optimization model has a good overall

  12. Operation and maintenance of nuclear power plant

    International Nuclear Information System (INIS)

    1990-04-01

    The proceedings contain 34 papers, almost all discussing specific problems or the Dukovany nuclear power plant. The major part is devoted to the matters of maintenance, regular and unplanned repairs, decontamination of the steam generator for inspection and repair purposes, various methods of in-service diagnostics. Some papers discuss reactor start-up, safety assurance, unit control and economic aspects. Environmental impacts of the power plant are also tackled. Some special contributions concern corrosion, chemical analysis of the coolant and the diagnostics of electrical equipment. The possibility is discussed of switching WWER reactors to improved fuel cycles with increased fuel burnup. (M.D.). 37 figs., 23 tabs., 47 refs

  13. Experience in operation and maintenance of PWRs

    International Nuclear Information System (INIS)

    Broecker, H.; Schomer, E.

    1987-01-01

    At present there are 10 PWRs in operation, most of them built on turnkey basis by KWU. The availability of West German PWRs amounted to 84.7% on average for the period from 1982-86. The good operating results are attributable to the following: 1. Sophiticated design and layout of the plant with good accessibility to the primary system even during operation. 2. Reliable performance of plant and components as result of extensive quality assurance. 3. Well-organized and highly qualified operating personnel. 4. Inservice inspection and preventive maintenance. 5. Good information feedback system. (Liu)

  14. Maintenance, endogeneous, respiration, lysis, decay and predation

    DEFF Research Database (Denmark)

    loosdrecht, Marc C. M. Van; Henze, Mogens

    1999-01-01

    mechanism is microbiologically correct. The lysis/decay model mechanism is a strongly simplified representation of reality. This paper tries to review the processes grouped under endogenous respiration in activated sludge models. Mechanisms and processes such as maintenance, lysis, internal and external...... decay, predation and death-regeneration are discussed. From recent microbial research it has become evident that cells do not die by themselves. Bacteria are however subject to predation by protozoa. Bacteria store reserve polymers that in absence of external substrate are used for growth...

  15. Maintenance requirements for methionine and cysteine, and ...

    African Journals Online (AJOL)

    The M&C requirement for maintenance was estimated as19 mg/kg empty body weight (EBW)/d, 26 mg/kg EBW0.75/d or 87 mg/BPm0.73/d. The maintenance requirement for THR was estimated as17 mg/kg EBW/d, 22 mg/kg EBW0.75/d or 76 mg/BPm0.73/d. The concentration of M&C in 'ideal' protein for maintenance was ...

  16. Development of optical fiber cable's inspection technology and maintenance criteria

    International Nuclear Information System (INIS)

    Kim, Min-Su; Ju, Hee-Wan; Shim, Seon-Heum; Lee, Youn-Ki; Kim, Jin-Il; Huh, Tae-Young

    2008-01-01

    Improve the reliability and establish the systematic maintenance methods for the digital control facilities' optical fiber cable, reviewed the technical requirements and the current maintenance procedures, analyzed the optical fiber cable's characteristics through actual test like bending, tension, attenuation. Based on the results of review, test and analysis, prepared the maintenance criteria and standard maintenance guideline. Also we verified those can be applied directly to the operating nuclear power plant through the actual test at Ulchin Unit 6. The details of test and analysis are presented in this paper. Also introduce the contents of maintenance criteria and guidelines

  17. Maintenance and control of apparatus for radiotherapy

    International Nuclear Information System (INIS)

    Wakui, Sho

    1979-01-01

    In order to perform the safe operation of radiotherapy apparatuses and to secure the accuracy in positioning patients and in setting up radiation beam, proper checking-up and maintenance schedule is necessary. Such schedule is described briefly and also the mechanical or electrical equipments designed for securing the safety and accuracy or eliminating in adequate operation are explained, especially on treatment tables and accessories, such as wedge filters, irradiation field indicators and pointers, and the devices for observing patients. The structures and the practical control of the following equipments are explained; standard treatment table, treatment table with a lifting column by oil pressure, mobile positioning control pedestal, positioning control pendaut, mechanical fuse cutter for the safeguard of table height movement, safety interlock to protect table from physical contact with radiation head in rotation and safeguard for arms of a patient in longitudinal movement of treatment table. For the maintenance and control of wedge filters, the kind of filter angle in use, the direction of filter in use and whether filter is used or not are exactly confirmed by adequate display. The direction mechanism of radiation field and the pointers are required to be strict for exact focusing of radiation. Various control apparatuses and monitoring apparatuses are described. (Kobatake, H.)

  18. Scheduling and recording of reactor maintenance and testing by computer

    International Nuclear Information System (INIS)

    Gray, P.L.

    1975-01-01

    The use of a computer program, Maintenance Information and Control (MIAC), at the Savannah River Laboratory (SRL) assists a small operating staff in maintaining three research reactors and a subcritical facility. The program schedules and defines preventive maintenance, schedules required periodic tests, logs repair and cost information, specifies custodial and service responsibilities, and provides equipment maintenance history, all with a minimum of record-keeping

  19. TRUPACT-II procedures and maintenance instructions

    International Nuclear Information System (INIS)

    1994-01-01

    The purpose of this document is to provide the technical requirements for operation, inspection and maintenance of a TRUPACT-II Shipping Package and directly related components. This document shall supply the minimum requirements as specified in the TRUPACT-II Safety Analysis Report for Packaging (SARP) and Certificate of Compliance (C of C) 9218. In the event there is a conflict between this document and the TRUPACT-II SARP (NRC Certificate of Compliance No. 9218), the TRUPACT-II SARP shall govern. This document details the operations, maintenance, repair, replacement of components, as well as the documentation required and the procedures to be followed to maintain the integrity of the TRUPACT-II container. These procedures may be modified for site use, but as a minimum all parameters and format listed herein must be included in any site modified version. For convenience and where applicable steps may be performed out of sequence. Packaging and payload handling equipment and transport trailers have been specifically designed for use with the TRUPACT-II Packaging. This document discusses the minimum required procedures for use of the adjustable center of gravity lift fixture and the TRUPACT-II transport trailer in conjunction with the TRUPACT-II Packaging

  20. Management for Construction Materials and Control of Construction Waste in Construction Industry: A Review

    OpenAIRE

    A. A. Gulghane; Prof P. V. Khandve

    2015-01-01

    In recent treads a wide range of building materials is available for the construction of civil engineering structures. The total cost of materials may be up to 60% or more of the total cost incurred in construction project dependent upon the type of project. Effective construction materials management is a key to success for a construction project. Construction waste is another serious problem in construction industry. A large and various types of construction waste with different...

  1. Development of inspection and maintenance program for reactor and reactivity control units in HANARO

    International Nuclear Information System (INIS)

    Cho, Yeong-Garp

    1998-01-01

    This paper summarizes the overall program for inspection and maintenance of reactor structure and Reactivity Control Units (RCU) of HANARO during lifetime. The long-term plan for in-service inspection is introduced in the viewpoint of the structural integrity of reactor and RCU, and the operability of RCU mechanism. This program includes the list of components to be inspected, the schedule of inspection and maintenance, and the development of special tools and test rig that are required for the remote inspection and maintenance of reactor and RCU components. Preliminary results of the evaluation on the lifetime of RCU components are summarized based on the operation history since the installation of reactor. A test rig will be designed and constructed for the purposes of verifying the prolonged lifetime of RCU components being used, the performance of special tools, and the rehearsal of maintenance work as well. (author)

  2. Risk-Informed Decisions Optimization in Inspection and Maintenance

    International Nuclear Information System (INIS)

    Robertas Alzbutas

    2002-01-01

    partial case is used for the construction and research of the models related to inspections and maintenance planning of Ignalina Nuclear Power Plant (RBMK-1500) piping components. The discussed example is related to risk analysis and inspection program improvements for selected pipe systems. The new risk-informed inspection and maintenance program for selected pipe systems are compared with various alternatives. The usage of risk evaluations to optimize the selection of inspection locations, the inspection interval, and the changes in risk and cost due suggested modifications are demonstrated. The proposed integrated modeling methodic and general model of inspection process can be used as a base for other risk-informed models of inspection process control and risk monitors of complex dynamic systems. (authors)

  3. Developing Mobile- and BIM-Based Integrated Visual Facility Maintenance Management System

    Directory of Open Access Journals (Sweden)

    Yu-Cheng Lin

    2013-01-01

    Full Text Available Facility maintenance management (FMM has become an important topic for research on the operation phase of the construction life cycle. Managing FMM effectively is extremely difficult owing to various factors and environments. One of the difficulties is the performance of 2D graphics when depicting maintenance service. Building information modeling (BIM uses precise geometry and relevant data to support the maintenance service of facilities depicted in 3D object-oriented CAD. This paper proposes a new and practical methodology with application to FMM using BIM technology. Using BIM technology, this study proposes a BIM-based facility maintenance management (BIMFMM system for maintenance staff in the operation and maintenance phase. The BIMFMM system is then applied in selected case study of a commercial building project in Taiwan to verify the proposed methodology and demonstrate its effectiveness in FMM practice. Using the BIMFMM system, maintenance staff can access and review 3D BIM models for updating related maintenance records in a digital format. Moreover, this study presents a generic system architecture and its implementation. The combined results demonstrate that a BIMFMM-like system can be an effective visual FMM tool.

  4. An integrated production, inventory and preventive maintenance model for a multi-product production system

    International Nuclear Information System (INIS)

    Liu, Xuejuan; Wang, Wenbin; Peng, Rui

    2015-01-01

    This paper considers a production system that can produce multiple products alternately. Products go through the system in a sequence and a complete run of all products forms a production cycle. An integrated production, inventory and preventive maintenance model is constructed, which is characterized by the delay-time concept. Two different situations are studied based on whether the unqualified products and downtime caused by the failures of the system, set-up and preventive maintenance can be ignored or not. Three cases are considered for each situation, depending on the position of the preventive maintenance epochs: the first case, where preventive maintenance is carried out at the end of each production cycle; the second case, where preventive maintenance is carried out at each set-up time of the products; and the third case, where preventive maintenance is carried out at some set-up times only, since it may not always be optimal to carry out preventive maintenance at the end of the production cycle or at each set-up time. The modeling objectives are to find the optimal number of production cycles per year and the optimal position of preventive maintenance that will maximize the expected profit per unit time. Numerical examples, using real data, are presented to illustrate the model. - Highlights: • We propose an integrated economic production quantity and preventive maintenance model. • The situation that multiple products are produced on the same system alternately is studied. • Two situations are studied based on whether the downtime and the product quality can be ignored or not. • We use enumeration method and analytical method to select the optimal preventive maintenance policy, respectively. • We use the delay-time concept to model the preventive maintenance policy

  5. Jointly Production and Correlated Maintenance Optimization for Parallel Leased Machines

    Directory of Open Access Journals (Sweden)

    Tarek ASKRI

    2017-04-01

    Full Text Available This paper deals with a preventive maintenance strategy optimization correlated to production for a manufacturing system made by several parallel machines under lease contract. In order to minimize the total cost of production and maintenance by reducing the production system interruptions due to maintenance activities, a correlated group preventive maintenance policy is developed using the gravity center approach (GCA. The aim of this study is to determine an economical production plan and an optimal group preventive maintenance interval Tn at which all machines are maintained simultaneously. An analytical correlation between failure rate of machines and production level is considered and the impact of the preventive maintenance policy on the production plan is studied. Finally, the proposed maintenance policy GPM is compared with an individual simple strategy approach IPM in order to illustrate its efficiency.

  6. Bayesian hypothesis testing and the maintenance rule

    International Nuclear Information System (INIS)

    Kelly, D.L.

    1997-01-01

    The Maintenance Rule (10 CFR 50.65) went into effect in the United States in July 1996. It requires commercial nuclear utilities to monitor system performance (system reliability and maintenance unavailability) for systems that are determined by the utility to be important to plant safety. Utilities must set performance goals for such systems and monitor system performance against these goals. In addition, these performance goals are intended to be commensurate with the safety significance of the system, which can be established by a probabilistic safety assessment of the plant. The author examines the frequents approach to monitoring performance, which is being used by several utilities, and proposes an alternative Bayesian approach. The Bayesian approach makes more complete use of the information in the probabilistic safety assessment, is consistent philosophically with the subjective interpretation given to probability in most probabilistic safety assessments, overcomes several pitfalls in the frequents approach, provides results which are easily interpretable, and is straightforward to implement using the information in the probabilistic safety assessment

  7. Perturbative and constructive renormalization

    International Nuclear Information System (INIS)

    Veiga, P.A. Faria da

    2000-01-01

    These notes are a survey of the material treated in a series of lectures delivered at the X Summer School Jorge Andre Swieca. They are concerned with renormalization in Quantum Field Theories. At the level of perturbation series, we review classical results as Feynman graphs, ultraviolet and infrared divergences of Feynman integrals. Weinberg's theorem and Hepp's theorem, the renormalization group and the Callan-Symanzik equation, the large order behavior and the divergence of most perturbation series. Out of the perturbative regime, as an example of a constructive method, we review Borel summability and point out how it is possible to circumvent the perturbation diseases. These lectures are a preparation for the joint course given by professor V. Rivasseau at the same school, where more sophisticated non-perturbative analytical methods based on rigorous renormalization group techniques are presented, aiming at furthering our understanding about the subject and bringing field theoretical models to a satisfactory mathematical level. (author)

  8. Maintenance modeling and optimization integrating human and material resources

    International Nuclear Information System (INIS)

    Martorell, S.; Villamizar, M.; Carlos, S.; Sanchez, A.

    2010-01-01

    Maintenance planning is a subject of concern to many industrial sectors as plant safety and business depend on it. Traditionally, the maintenance planning is formulated in terms of a multi-objective optimization (MOP) problem where reliability, availability, maintainability and cost (RAM+C) act as decision criteria and maintenance strategies (i.e. maintenance tasks intervals) act as the only decision variables. However the appropriate development of each maintenance strategy depends not only on the maintenance intervals but also on the resources (human and material) available to implement such strategies. Thus, the effect of the necessary resources on RAM+C needs to be modeled and accounted for in formulating the MOP affecting the set of objectives and constraints. In this paper RAM+C models to explicitly address the effect of human resources and material resources (spare parts) on RAM+C criteria are proposed. This extended model allows accounting for explicitly how the above decision criteria depends on the basic model parameters representing the type of strategies, maintenance intervals, durations, human resources and material resources. Finally, an application case is performed to optimize the maintenance plan of a motor-driven pump equipment considering as decision variables maintenance and test intervals and human and material resources.

  9. Maintenance modeling and optimization integrating human and material resources

    Energy Technology Data Exchange (ETDEWEB)

    Martorell, S., E-mail: smartore@iqn.upv.e [Dpto. Ingenieria Quimica y Nuclear, Universidad Politecnica Valencia (Spain); Villamizar, M.; Carlos, S. [Dpto. Ingenieria Quimica y Nuclear, Universidad Politecnica Valencia (Spain); Sanchez, A. [Dpto. Estadistica e Investigacion Operativa Aplicadas y Calidad, Universidad Politecnica Valencia (Spain)

    2010-12-15

    Maintenance planning is a subject of concern to many industrial sectors as plant safety and business depend on it. Traditionally, the maintenance planning is formulated in terms of a multi-objective optimization (MOP) problem where reliability, availability, maintainability and cost (RAM+C) act as decision criteria and maintenance strategies (i.e. maintenance tasks intervals) act as the only decision variables. However the appropriate development of each maintenance strategy depends not only on the maintenance intervals but also on the resources (human and material) available to implement such strategies. Thus, the effect of the necessary resources on RAM+C needs to be modeled and accounted for in formulating the MOP affecting the set of objectives and constraints. In this paper RAM+C models to explicitly address the effect of human resources and material resources (spare parts) on RAM+C criteria are proposed. This extended model allows accounting for explicitly how the above decision criteria depends on the basic model parameters representing the type of strategies, maintenance intervals, durations, human resources and material resources. Finally, an application case is performed to optimize the maintenance plan of a motor-driven pump equipment considering as decision variables maintenance and test intervals and human and material resources.

  10. Constructional and Conceptual Composition

    Science.gov (United States)

    Dodge, Ellen Kirsten

    2010-01-01

    Goldberg's (1995) recognition that, in addition to various word-level constructions, sentences also instantiate meaningful argument structure constructions enables a non-polysemy-based analysis of various verb 'alternations' (Levin 1993). In such an analysis, meaning variations associated with the use of the same verb in different argument…

  11. Elimination of maintenance outage and cost reduction by development of outage-free maintenance techniques

    International Nuclear Information System (INIS)

    Jakabe, Hideo; Maruyama, Yoshinaga

    1996-01-01

    The development program of KEPCO on outage-free maintenance techniques for distribution line work since 1984 is overviewed. It has succeeded in eliminating maintenance outages since 1989. The original aim was to improve customer satisfaction. However, in all, four benefits were realised through the development. These are cost reduction, securing of worker safety, improvement of customer service, and advancement of distribution techniques and morale in KEPCO. The introduction of robotic techniques for maintenance work and manipulator techniques for repair work is planned for further modernization. These new techniques are helping in both work safety and work efficiency improvement. Cost reduction and advancement of distribution line work techniques is also considered. (R.P.)

  12. Design of underground layout and their maintenance

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Bok Youn; Kang, Chang Hee; Jo, Young Do; Lim, Sang Taek [Korea Institute of Geology Mining and Materials, Taejon (Korea, Republic of)

    1997-12-01

    Layout of underground structure has to be designed based on rock mechanical analysis and the concept of active support has to be adopted considering the large openings are requested to accommodate heavy duty diesel equipment in underground. Rock bolt and shotcrete will be the most applicable method to support such a large dimensional tunnels. 1) Direction: The main haulage way of the mines where diesel equipment are operating is ramp way system. For optimizing safety measures, and minimizing maintenance cost of the tunnels, it is strongly recommended that all the tunnels including ramp way, rooms and sublevels should be designed in parallel to the direction of principal stress and perpendicular to the direction of major discontinuity. 2) Inclination: Basically, the inclination of the ramp way depends on the specification of the equipment, but 10-15% is usual. The steep inclination needs less initial investment but there will be an adverse effects such as higher operating and maintenance costs. 3) Profile (Cross section): The maximum dimension of the equipment operating in local mines appeared 12.8m long, 3.705m wide and 3.68m high. Considering the dimension, the requested profile simply can be calculated to 4m x 4m, but it should be decided according to the regulated minimum clearances from the walls and roof. The minimum inner curvature radius of the tunnels should be more than 5.2m, and in this case, the tunnel width of the curved zone should be more than 5.5m. 4) Sight distance and braking distance: For the safe operation of the equipment, the sight distance must be longer than braking distance, so that the driver can hold up the equipment safely after finding the obstacles in front of him. The maximum braking distance without heating of brake shoe is 60m. 5) Support and maintenance: Due to the large dimensional tunnels where diesel equipment are operating, the conventional supporting system is not applicable. Therefore, the active support concept should be

  13. Operations and Maintenance Cost for Stratified Buildings: A Critical Review

    Directory of Open Access Journals (Sweden)

    Che-Ghani Nor Zaimah

    2016-01-01

    Full Text Available Building maintenance is essential in preserving buildings’ appearance and performance. It needs to upkeep the building performance to prolong its value and building life cycle. Malaysia is still lacking in managing cost for building operation and maintenance. It has been found that the cost for housing maintenance is high due to poor maintenance practices. In order to get better understanding on how to manage the cost, this study reviews the contributing factors that affecting operation and maintenance cost of stratified buildings in Malaysia. The research first identified the factors through extensive literature review and scrutinize on factors that affecting and can minimize operation and maintenance cost. This literature review offers insight into building maintenance scenario in Malaysia focusing on the issues and challenges. The study also finds that operation and maintenance cost for housing in Malaysia is still in poor state. Interestingly, this paper revealed that operation and maintenance cost is also influenced by three significant factors like expectation of tenants, building characteristics and building defects. Measures to reduce the housing operation and maintenance cost are also highlighted so that this study can be a stepping stone towards proposing efficient and effective facilities management strategies for affordable housing in future.

  14. Engineering and maintenance applied to safety-related valves in nuclear power plants

    International Nuclear Information System (INIS)

    Verdu, M. F.; Perez-Aranda, J.

    2014-01-01

    Nuclear Division in Iberdrola engineering and Construction has a team with extensive experience on engineering and services works related to valves. Also, this team is linked to UNESA as Technical support and Reference Center. Iberdrola engineering and construction experience in nuclear power plants valves, gives effective response to engineering and maintenance works that can be demanded in a nuclear power plant and it requires a high degree of qualification and knowledge both in Operation and Outages. (Author)

  15. Maintenance and fabrication of electronic equipment

    International Nuclear Information System (INIS)

    Chung, Chong Eun; Moon, Byung Soo; Hong, Suk Boong; Kim, Yong Keun; Kim, Jung Bok

    2002-12-01

    Providing technical support to the maintenance and repair problems of electronic instruments, we have assisted the research and development work, and reduced operation cost of the pilot plants in KAERI. In addition, we have converted the localized control system of the unit211 into remote control system using computer network, and replaced the analog meter for the temperature indication of the spent fuel receiving process(unit212) with digital devices. 50 scintillators with PMTs, which have been deteriorated from aging, have been replaced with new ones that were fabricated and evaluated in our laboratory. Preamplification circuit for radiation detectors were developed and also signal processing multi-channel ASIC for the 2D array detector were developed and evaluated

  16. Artificial intelligence applications for operation and maintenance

    International Nuclear Information System (INIS)

    Itoh, M.; Tai, I.; Monta, K.; Sekimizu, K.

    1987-01-01

    A nuclear power plant as a typical man-machine system of the modern industry needs an efficient human window through which operators can observe every necessary detail of the plant for its safe and reliable operation. Much efforts have been devoted to the development of the computerized operator support systems (COSS). Recent development of artificial intelligence (AI) seems to offer new possibility to strengthen the performance of the COSS such as more powerful diagnosis and procedure synthesis and user friendly man-machine interfaces. From this point of view, a national project of Advanced Man-Machine System Development for Nuclear Power Plants has been carried out. Artificial intelligence application to nuclear power plant operation and maintenance is also selected as a major theme for the promotion of research and development on frontiers in the recently revised long term national program for development and utilization of nuclear energy in JAPAN

  17. Masonry constructions mechanical models and numerical applications

    CERN Document Server

    Lucchesi, Massimiliano; Padovani, Cristina

    2008-01-01

    Numerical methods for the structural analysis of masonry constructions can be of great value in assessing the safety of artistically important masonry buildings and optimizing potential operations of maintenance and strengthening in terms of their cost-effectiveness, architectural impact and static effectiveness. This monograph firstly provides a detailed description of the constitutive equation of masonry-like materials, clearly setting out its most important features. It then goes on to provide a numerical procedure to solve the equilibrium problem of masonry solids. A large portion of the w

  18. The virtual maintenance system: a computer-based support tool for robust design, product monitoring, fault diagnosis and maintenance planning

    NARCIS (Netherlands)

    van Houten, Frederikus J.A.M.; Kimura, F.

    2000-01-01

    Digital (geometric) product models can be used for maintainability analysis and maintenance planning. It is not feasible to build digital product models for maintenance purposes only, but if a digital product model is available, it may be used to support many maintenance-related engineering tasks.

  19. Complete guide to preventive and predictive maintenance

    CERN Document Server

    Levitt, Joel

    2011-01-01

    This book shares the best practices, mistakes, victories, and essential steps for success which the author has gleaned from working with countless organizations. Unlike other books that only focus on the engineering issues (task lists) or management issues (CMMS), this in-depth resource is the first to give true emphasize to the four aspects of success in preventive maintenance systems - engineering, management, economic, and psychological - thereby enabling readers to have a balanced view and understanding of what is happening in their organizations. Additionally, it blends concrete actionable steps and structures with the theory behind the steps. It includes check sheets, history of PM, stories, photographs, and case histories. It contains a glossary of terms. It provides sample task lists for a variety of equipment with some of the logic behind each task. It offers templates for developing your own tasking. It includes protocols for detailed economic analysis with examples.

  20. Employment Maintenance and Intimate Partner Violence.

    Science.gov (United States)

    Borchers, Andrea; Lee, Rebecca C; Martsolf, Donna S; Maler, Jeff

    2016-05-18

    Intimate partner violence (IPV) is a major public health problem in the United States. Negative outcomes of IPV affect women's attainment and maintenance of employment. The purpose of this study was to develop a theoretical framework that described and explained the process by which women who have experienced IPV attain and maintain employment. Grounded theory methodology was used to analyze interviews of 34 women who had experienced IPV. Analysis suggested that women who had experienced IPV could attain employment; however, they had difficulty maintaining employment. Entanglement of work and IPV was experienced by all 34 participants because of the perpetrator controlling their appearance, sabotaging their work, interfering with their work, or controlling their finances. Some women described ways in which they disentangled work from IPV through a dynamic unraveling process, with periods of re-entanglement, resulting in job security and satisfaction. © 2016 The Author(s).

  1. Present status of laser technology for maintenance and repair

    International Nuclear Information System (INIS)

    Sano, Yuji

    2001-01-01

    A laser has superior spatial and timely controllability and has no repulsive force at its use, it is a tool suitable for remote operation. And, as a partial processing with low exotherm and deformation by its use becomes possible, it can have an advantage omissible for post processes such as heat treatment and so on. Therefore, on in-situ repair of present constructions, laser is thought to be an optimum tool. And, in nuclear energy plants, maintenance and management of their instruments are important, and then a number of technical developments activating its advantages have been carried out. Above all, repair engineering around a reactor has a number of places difficult to access them for its operators, so remote engineering using laser is desired for in special. Here was described on the present status of development and realization containing protect conservation and inspection repair technology using laser. (G.K.)

  2. Safe operation and maintenance of research reactor

    Energy Technology Data Exchange (ETDEWEB)

    Munsorn, S. [Reactor Operation Division, Office of Atomic Energy for Peace, Chatuchak, Bangkok (Thailand)

    1999-10-01

    The first Thai Research Reactor (TRR-1) was established in 1961 at the Office of Atomic Energy for Peace (OAEP), Bangkok. The reactor was light water moderated and cooled, using HEU plate-type with U{sub 3}O{sub 8}- Al fuel meat and swimming pool type. The reactor went first critical on October 27, 1962 and had been licensed to operate at 1 MW (thermal). On June 30, 1975 the reactor was shutdown for modification and the core and control system was disassemble and replaced by that of TRIGA Mark III type while the pool cooling system, irradiation facilities and other were kept. Thus the name TRR-1/M1' has been designed due to this modification the fuel has been changed from HEU plate type to Uranium Zirconium Hydride (UZrH) Low Enrichment Uranium (LEU) which include 4 Fuel Follower Control Rods and 1 Air Follower Control Rod. The TRR-1/M1 went critical on November 7, 1977 and the purpose of the operation are training, isotope production and research. Nowadays the TRR-1/M1 has been operated with core loading No.12 which released power of 1,056 MWD. (as of October 1998). The TRR-1/M1 has been operated at the power of 1.2 MW, three days a week with 34 hours per week, Shut-down on Monday for weekly maintenance and Tuesday for special experiment. The everage energy released is about 40.8 MW-hour per week. Every year, the TRR-1/M1 is shut-down about 2 months between February to March for yearly maintenance. (author)

  3. Safe operation and maintenance of research reactor

    International Nuclear Information System (INIS)

    Munsorn, S.

    1999-01-01

    The first Thai Research Reactor (TRR-1) was established in 1961 at the Office of Atomic Energy for Peace (OAEP), Bangkok. The reactor was light water moderated and cooled, using HEU plate-type with U 3 O 8 - Al fuel meat and swimming pool type. The reactor went first critical on October 27, 1962 and had been licensed to operate at 1 MW (thermal). On June 30, 1975 the reactor was shutdown for modification and the core and control system was disassemble and replaced by that of TRIGA Mark III type while the pool cooling system, irradiation facilities and other were kept. Thus the name TRR-1/M1' has been designed due to this modification the fuel has been changed from HEU plate type to Uranium Zirconium Hydride (UZrH) Low Enrichment Uranium (LEU) which include 4 Fuel Follower Control Rods and 1 Air Follower Control Rod. The TRR-1/M1 went critical on November 7, 1977 and the purpose of the operation are training, isotope production and research. Nowadays the TRR-1/M1 has been operated with core loading No.12 which released power of 1,056 MWD. (as of October 1998). The TRR-1/M1 has been operated at the power of 1.2 MW, three days a week with 34 hours per week, Shut-down on Monday for weekly maintenance and Tuesday for special experiment. The everage energy released is about 40.8 MW-hour per week. Every year, the TRR-1/M1 is shut-down about 2 months between February to March for yearly maintenance. (author)

  4. NET test blanket design and remote maintenance

    International Nuclear Information System (INIS)

    Holloway, C.; Hubert, P.

    1991-01-01

    The NET machine has three horizontal ports reserved for testing tritium breeding blanket designs during the physics phase and possibly five during the technology phase. The design of the ports and test blankets are modular to accept a range of blanket options, provide radiation shielding and allow routine replacement. Radiation levels during replacement or maintenance require that all operations must be carried out remotely. The paper describes the problems overcome in providing a port design which includes attachment to the vacuum vessel with double vacuum seals, an integrated cooled first wall and support guides for the test blanket module. The method selected to remotely replace the test module whilst controlling the spread of contamination is also adressed. The paper concludes that the provisions of a test blanket facility based on the NET machine design is feasible. (orig.)

  5. Maintenance and version identification for NJOY

    International Nuclear Information System (INIS)

    Sartori, E.

    1989-01-01

    The maintenance methodologies of the CDC UPDATE utility program has been adopted for NJOY. It allows their users to keep track of the history of changes to the code and to document them. This utility exists with almost identical functions both in different makes of control data computers and of CRAY. For other computers, similar utilities exist such as LIBRARIAN or HISTORIAN for IBM, which are to a large extent compatible with the UPDATE methodology. These software products are however available only on a commercial basis. The UPDATE emulators have been developed in recent years in FORTRAN-77 and are therefore portable to a large extent to most computer makes. A more detailed description is annexed in the following

  6. African Easterly Jet: Structure and Maintenance

    Science.gov (United States)

    Wu, Man-Li C.; Reale, Oreste; Schubert, Siegfried D.; Suarez, Max J.; Koster, Randy D.; Pegion, Philip J.

    2009-01-01

    This article investigates the African Easterly Jet (AEJ), its structure and the forcings contributing to its maintenance, critically revisiting previous work which attributed the maintenance of the jet to soil moisture gradients over tropical Africa. A state-of-the-art global model in a high-end computer framework is used to produce a 3-member 73-year ensemble run forced by observed SST to represent the Control run. The AEJ as produced by the Control is compared with the representation of the AEJ in the European Center for Medium Range Forecast Reanalyses (ERA-40) and other observational data sets and found very realistic. Five Experiments are then performed, each represented by sets of 3-member 22 year long (1980-2001) ensemble runs. The goal of the Experiments is to investigate the role of meridional soil moisture gradients, different land surface properties and orography. Unlike previous studies, which have suppressed soil moisture gradients within a highly idealized framework (i.e., the so-called bucket model), terrestrial evaporation control is here achieved with a highly sophisticated landsurface treatment and with an extensively tested and complex methodology. The results show that the AEJ is suppressed by a combination of absence of meridional evaporation gradients over Africa and constant vegetation, even if the individual forcings taken separately do not lead to the AEJ disappearance, but only its modification. Moreover, the suppression of orography also leads to a different circulation in which there is no AEJ. This work suggests that it is not just soil moisture gradients, but a unique combination of geographical features present only in northern tropical Africa, which causes and maintains the jet.

  7. Maintenance Effectiveness and Target Observation System and its ERP Interface

    International Nuclear Information System (INIS)

    Soon, Han Seong; Kim, Gi Yong; Seo, Mi Ro; Jeong, Hun Jong; Choi, Kwang Hee; Hong, Sung Yull

    2005-01-01

    Maintenance effectiveness and target observation system (MENTOS) is a maintenance rule (MR) implementation software for plant personnel to collect, edit, store, and analyze all information required for the MR implementation. Potential users and the developers of MENTOS have decided that MENTOS is implemented in the ERP system of KHNP. This article describes MENTOS briefly and introduces the ERP interface of MENTOS

  8. Two Different Maintenance Strategies in the Hospital Environment: Preventive Maintenance for Older Technology Devices and Predictive Maintenance for Newer High-Tech Devices

    OpenAIRE

    Sezdi, Mana

    2016-01-01

    A maintenance program generated through the consideration of characteristics and failures of medical equipment is an important component of technology management. However, older technology devices and newer high-tech devices cannot be efficiently managed using the same strategies because of their different characteristics. This study aimed to generate a maintenance program comprising two different strategies to increase the efficiency of device management: preventive maintenance for older tec...

  9. Estimating cost per lane mile for routine highway operations and maintenance

    Science.gov (United States)

    2011-01-01

    The disparity between maintenance budgets and maintenance requirements causes agencies to make difficult choices : about maintenance priorities. There is a growing need to effectively link maintenance costs and condition to provide clear : evidence o...

  10. A quantitative comparison of corrective and perfective maintenance

    Science.gov (United States)

    Henry, Joel; Cain, James

    1994-01-01

    This paper presents a quantitative comparison of corrective and perfective software maintenance activities. The comparison utilizes basic data collected throughout the maintenance process. The data collected are extensive and allow the impact of both types of maintenance to be quantitatively evaluated and compared. Basic statistical techniques test relationships between and among process and product data. The results show interesting similarities and important differences in both process and product characteristics.

  11. Conflict, negative emotion, and reports of partners' relationship maintenance in same-sex couples.

    Science.gov (United States)

    Ogolsky, Brian G; Gray, Christine R

    2016-03-01

    The literature on relationship maintenance has focused primarily on the beneficial outcomes of maintenance, and, as a result, little is known about relational processes that may interfere with reports of partners' maintenance. The authors examine how daily conflict influences individuals' reports of their partners' maintenance, and how a constructive communication style buffers this influence by reducing negative emotion on conflict days. In a daily diary study of 98 same-sex couples in romantic relationships, they found that the negative association between conflict and reports of a partner's relationship maintenance was mediated by negative emotion. That is, there was an indirect effect by which daily conflict was associated with higher levels of daily negative emotion, which was associated with reports of lower levels of partners' relationship maintenance. This indirect effect was moderated by couples' overall level of constructive communication such that higher levels diminished the degree to which couples experienced negative emotion on days with episodes of relational conflict. The authors discuss results in the context of interpersonal theory and provide implications for clinicians and practitioners. (c) 2016 APA, all rights reserved).

  12. Integrating availability and maintenance objectives in plant design. EDF approach

    International Nuclear Information System (INIS)

    Degrave, Claude; Martin-Onraet, Michel

    1995-01-01

    Energy self sufficiency is a major strategic necessity for France. Regarding the fossil fuels power, competitiveness of nuclear energy is a key goal for Electricite de France. Accordingly, for future nuclear power plants to remain competitive, it is necessary to maintain the kWh production costs of the future units at a level close to those of the latest units under construction (N4 series), while raising the safety level. EDF therefore decided to implement an analytical and systematic process for study of the new projects to optimize the design by integration of the maintenance (durations, costs), availability and radiation exposure goals from the related operating experience. This approach, CIDEM (French acronym for Design Integrating Availability, operating Experience and Maintenance) aims at a single goal: to minimize the kWh production cost incorporating investment, operation and fuel costs, allowing for the operating experience from French and foreign units. The implementation of the CIDEM process constitutes for EDF a new approach to the study of the new Nuclear Power Plant projects. The competitivity of nuclear energy greatly depends on the success of such an approach. The studies conducted in the availability field have already highlighted a number of critical points and have made it possible to define the corresponding goal allocations and to establish a first series of structuring specifications for the project. (J.P.N.)

  13. Failure: A Source of Progress in Maintenance and Design

    Science.gov (United States)

    Chaïb, R.; Taleb, M.; Benidir, M.; Verzea, I.; Bellaouar, A.

    This approach, allows using the failure as a source of progress in maintenance and design to detect the most critical components in equipment, to determine the priority order maintenance actions to lead and direct the exploitation procedure towards the most penalizing links in this equipment, even define the necessary changes and recommendations for future improvement. Thus, appreciate the pathological behaviour of the material and increase its availability, even increase its lifespan and improve its future design. In this context and in the light of these points, the failures are important in managing the maintenance function. Indeed, it has become important to understand the phenomena of failure and degradation of equipments in order to establish an appropriate maintenance policy for the rational use of mechanical components and move to the practice of proactive maintenance [1], do maintenance at the design [2].

  14. Florida maintenance rating program (MRP) assessment and enhancement : final report, May 28, 2008.

    Science.gov (United States)

    2008-05-28

    The Maintenance Rating Program (MRP), developed in 1985 by FDOT, is a statewide maintenance system aimed : at evaluating the State highway maintenance conditions, and determining FDOT asset maintenance needs. In the : quest for continuous improvement...

  15. Improving the development, use and control of maintenance procedures

    International Nuclear Information System (INIS)

    Morgenstern, M.H.; Barnes, V.E.; Radford, L.R.; Wheeler, W.A.; Badalamente, R.V.

    1985-12-01

    This paper describes the results of a project conducted for the US Nuclear Regulatory Commission (NRC) to assess and document the need for guidance or regulatory involvement by the NRC in the development, upgrading, use and control of maintenance procedures in US nuclear power plants. Presented are the findings of the following activities: (1) a survey of current maintenance procedure practices in seven US nuclear power plants; (2) a review and analysis of plant administrative and maintenance procedures; (3) a survey of maintenance procedure practices in industries that share some characteristics with the nuclear industry; and (4) a review of the research pertaining to job performance aids and a brief analysis of their applicability to maintenance in nuclear power plants. Based on these findings, several recommendations to upgrade maintenance procedures are offered

  16. A study on constructing a machine-maintenance training system based on virtual reality technology

    International Nuclear Information System (INIS)

    Ishii, H.; Kashiwa, K.; Tezuka, T.; Yoshikawa, H.

    1997-01-01

    The development of a VR based training system are presented for teaching disassembling procedures of mechanical machines used in nuclear power plant. The methods of Petri net model for describing trainees' plausible actions in the disassembling process and reduce a right sequence of action sequence are developed as well as realization of the related Petri net editor and the demonstration of the developed VR based training system was demonstrated by example practice of disassembly simulation of check valve. Moreover, the needed future works are also discussed

  17. SUBSURFACE CONSTRUCTION AND DEVELOPMENT ANALYSIS

    International Nuclear Information System (INIS)

    N.E. Kramer

    1998-01-01

    The purpose of this analysis is to identify appropriate construction methods and develop a feasible approach for construction and development of the repository subsurface facilities. The objective of this analysis is to support development of the subsurface repository layout for License Application (LA) design. The scope of the analysis for construction and development of the subsurface Repository facilities covers: (1) Excavation methods, including application of knowledge gained from construction of the Exploratory Studies Facility (ESF). (2) Muck removal from excavation headings to the surface. This task will examine ways of preventing interference with other subsurface construction activities. (3) The logistics and equipment for the construction and development rail haulage systems. (4) Impact of ground support installation on excavation and other construction activities. (5) Examination of how drift mapping will be accomplished. (6) Men and materials handling. (7) Installation and removal of construction utilities and ventilation systems. (8) Equipping and finishing of the emplacement drift mains and access ramps to fulfill waste emplacement operational needs. (9) Emplacement drift and access mains and ramps commissioning prior to handover for emplacement operations. (10) Examination of ways to structure the contracts for construction of the repository. (11) Discussion of different construction schemes and how to minimize the schedule risks implicit in those schemes. (12) Surface facilities needed for subsurface construction activities

  18. Technical information report: Plasma melter operation, reliability, and maintenance analysis

    International Nuclear Information System (INIS)

    Hendrickson, D.W.

    1995-01-01

    This document provides a technical report of operability, reliability, and maintenance of a plasma melter for low-level waste vitrification, in support of the Hanford Tank Waste Remediation System (TWRS) Low-Level Waste (LLW) Vitrification Program. A process description is provided that minimizes maintenance and downtime and includes material and energy balances, equipment sizes and arrangement, startup/operation/maintence/shutdown cycle descriptions, and basis for scale-up to a 200 metric ton/day production facility. Operational requirements are provided including utilities, feeds, labor, and maintenance. Equipment reliability estimates and maintenance requirements are provided which includes a list of failure modes, responses, and consequences

  19. RA reactor operation and maintenance in 1992, Part 1

    International Nuclear Information System (INIS)

    Sotic, O.; Cupac, S.; Sulem, B.; Zivotic, Z.; Majstorovic, D.; Tanaskovic, M.

    1992-01-01

    During 1992 Ra reactor was not in operation. All the activities were fulfilled according to the previously adopted plan. Basic activities were concerned with revitalisation of the RA reactor and maintenance of reactor components. All the reactor personnel was busy with reconstruction and renewal of the existing reactor systems and building of the new systems, maintenance of the reactor devices. Part of the staff was trained for relevant tasks and maintenance of reactor systems [sr

  20. Integrated services and maintenance in nuclear power plants

    International Nuclear Information System (INIS)

    Roos, Georg

    2001-01-01

    The general situation concerning services and nuclear power maintenance is reviewed following liberalization of Europa's power market. Issues relating to outsourcing maintenance services, effectiveness and reducing cost structure of maintenance are addressed on the cases of power markets in northern countries, Spain, Switzerland, Germany and Hungary. A special attention is paid on range of maintenance activity offered and performanced by Framatome. Ways of reducing costs in the field of maintenance as well as of reducing outage time are indicated. In conclusion, the following items are emphasized: - liberalization of Europe's power market in eastern Europe at its beginning; - in-house service in eastern Europe with numerous personnel; - Framatome ANP covers the entire range of maintenance competence; - consultance can be the first approach for a common co-operation

  1. Maintenance Management in Network Utilities Framework and Practical Implementation

    CERN Document Server

    Gómez Fernández, Juan F

    2012-01-01

    In order to satisfy the needs of their customers, network utilities require specially developed maintenance management capabilities. Maintenance Management information systems are essential to ensure control, gain knowledge and improve-decision making in companies dealing with network infrastructure, such as distribution of gas, water, electricity and telecommunications. Maintenance Management in Network Utilities studies specified characteristics of maintenance management in this sector to offer a practical approach to defining and implementing  the best management practices and suitable frameworks.   Divided into three major sections, Maintenance Management in Network Utilities defines a series of stages which can be followed to manage maintenance frameworks properly. Different case studies provide detailed descriptions which illustrate the experience in real company situations. An introduction to the concepts is followed by main sections including: • A Literature Review: covering the basic concepts an...

  2. Resale Price Maintenance and Manufacturer Competition for Exclusive Dealerships.

    OpenAIRE

    Perry, Martin K; Besanko, David

    1991-01-01

    Two manufacturers distribute their brands through exclusive retail dealers and must compete for consumers indirectly by inducing retailers to carry their brands. The authors compare equilibrium outcomes with and without resale price maintenance. Maximum resale price maintenance lowers the retail price if manufacturers cannot employ franchise fees. Minimum retail price maintenance raises the retail price if manufacturers cannot set a wholesale price above marginal cost and must employ only a f...

  3. Risk-Based Operation and Maintenance of Offshore Wind Turbines

    DEFF Research Database (Denmark)

    Nielsen, Jannie Sønderkær

    For offshore wind turbines, maintenance costs are substantial due to a large number of component failures. In addition to the repair costs, equipment costs and lost production costs are large due to limited accessibility to the turbines. In order to reduce the costs, preventive methods can be used......, but presently maintenance is not planned using advanced methods taking all available information into account in a consistent manner. Maintenance decisions can be made based on risk-based methods, where the total expected life cycle costs are minimized. Methods have been developed for assessing the corrective...... maintenance costs, and many studies have also been published for preventive maintenance. However, an important part is the modeling of the relationship between maintenance and reliability, which is typically not modeled in a consistent way. Therefore, the methods cannot be used directly for optimal...

  4. Joint optimization of production scheduling and machine group preventive maintenance

    International Nuclear Information System (INIS)

    Xiao, Lei; Song, Sanling; Chen, Xiaohui; Coit, David W.

    2016-01-01

    Joint optimization models were developed combining group preventive maintenance of a series system and production scheduling. In this paper, we propose a joint optimization model to minimize the total cost including production cost, preventive maintenance cost, minimal repair cost for unexpected failures and tardiness cost. The total cost depends on both the production process and the machine maintenance plan associated with reliability. For the problems addressed in this research, any machine unavailability leads to system downtime. Therefore, it is important to optimize the preventive maintenance of machines because their performance impacts the collective production processing associated with all machines. Too lengthy preventive maintenance intervals may be associated with low scheduled machine maintenance cost, but may incur expensive costs for unplanned failure due to low machine reliability. Alternatively, too frequent preventive maintenance activities may achieve the desired high reliability machines, but unacceptably high scheduled maintenance cost. Additionally, product scheduling plans affect tardiness and maintenance cost. Two results are obtained when solving the problem; the optimal group preventive maintenance interval for machines, and the assignment of each job, including the corresponding start time and completion time. To solve this non-deterministic polynomial-time problem, random keys genetic algorithms are used, and a numerical example is solved to illustrate the proposed model. - Highlights: • Group preventive maintenance (PM) planning and production scheduling are jointed. • Maintenance interval and assignment of jobs are decided by minimizing total cost. • Relationships among system age, PM, job processing time are quantified. • Random keys genetic algorithms (GA) are used to solve the NP-hard problem. • Random keys GA and Particle Swarm Optimization (PSO) are compared.

  5. Waste sampling and characterization facility (WSCF) maintenance implementation plan

    International Nuclear Information System (INIS)

    Heinemann, J.L.; Millard, G.E.

    1997-08-01

    This Maintenance Implementation Plan (MIP) is written to satisfy the requirements of the US Department of Energy (DOE) Order 4330.4B, Maintenance Management Program that specifies the general policy and objectives for the establishment of the DOE controlled maintenance programs. These programs provide for the management and performance of cost effective maintenance and repair of the DOE property, which includes facilities. This document outlines maintenance activities associated with the facilities operated by Waste Management Hanford, Inc. (WMH). The objective of this MIP is to provide baseline information for the control and execution of WMH Facility Maintenance activities relative to the requirements of Order 4330.4B, assessment of the WMH maintenance programs, and actions necessary to maintain compliance with the Order. Section 2.0 summarizes the history, mission and description of the WMH facilities. Section 3.0 describes maintenance scope and requirements, and outlines the overall strategy for implementing the maintenance program. Specific elements of DOE Order 4330.4B are addressed in Section 4.0, listing the objective of each element, a discussion of the WMH compliance methodology, and current implementation requirements with references to WMH and HNF policies and procedures. Section 5.0 addresses deviations from policy requirements, and Section 6.0 is a schedule for specific improvements in support of this MIP

  6. [The maintenance of automatic analysers and associated documentation].

    Science.gov (United States)

    Adjidé, V; Fournier, P; Vassault, A

    2010-12-01

    The maintenance of automatic analysers and associated documentation taking part in the requirements of the ISO 15189 Standard and the French regulation as well have to be defined in the laboratory policy. The management of the periodic maintenance and documentation shall be implemented and fulfilled. The organisation of corrective maintenance has to be managed to avoid interruption of the task of the laboratory. The different recommendations concern the identification of materials including automatic analysers, the environmental conditions to take into account, the documentation provided by the manufacturer and documents prepared by the laboratory including procedures for maintenance.

  7. Research and development of remote maintenance equipment for ITER divertor maintenance

    International Nuclear Information System (INIS)

    Takeda, Nobukazu; Kakudate, Satoshi; Nakahira, Masataka

    2005-02-01

    To facilitate easy remote maintainability, the ITER divertor is divided into 60 cassettes, which are transported in the toroidal and radial directions for replacement through maintenance ports located every 90 degrees using the divertor remote maintenance equipment such as in- and ex-vessel transporters. The cassette of 25 tons has to be transported and installed in the vacuum vessel with a positioning accuracy less than 2 mm in the limited space of the vacuum vessel and maintenance port under the intense gamma radiation field. Based on these requirements, the following design and tests were performed. (1) Link mechanism was studied to apply to the transportation of the heavy cassette in the restricted space. A compact mechanism with links for transportation of heavy cassette is designed through the optimization of the link angle taking account of space requirement and force efficiency. As a test result, the lifting capacity of 30 tons (larger than the cassette weight of 25 tons) using two link mechanisms has been demonstrated in the limited space. (2) Compact link mechanism was also studied to apply for locking of the cassette through the optimization of the link angle taking account of space requirement and force efficiency. As a test result, the final positioning accuracy of 0.03 mm for the 25 tons-cassette installation on the vacuum vessel from the initial positioning error of 5 mm has been demonstrated, so that the test result satisfies the requirement less than 2 mm using the link mechanisms in the limited space. (3) Sensor-based control using simple sensors such as optical fiber for divertor maintenance was tested using the full-scale mock-up divertor cassette and remote maintenance equipment. As a result, it is found that the positioning accuracy of 0.16 mm has been achieved by the optical fiber sensor and this value is sufficient for sensor-based control. In addition, the maintenance operation has been carried out through the human-machine interface

  8. Planning of Maintenance and Repair of Complicated Technical Systems

    Directory of Open Access Journals (Sweden)

    N. I. Liseychikov

    2004-01-01

    Full Text Available It is expedient to use mathematical models for substantiation of operational material consumption at maintenance of complicated technical systems. The appropriate tasks have been considered: minimization of operational material consumption; determination of maximum scope of work to be executed while maintaining one system; optimization of operational material consumption while organizing maintenance of a system group; planning of technical maintenance and determination of a number of systems to be maintained. Formalization and solution of the above problems have been accomplished.

  9. TRUPACT-II Operating and Maintenance Instructions

    Energy Technology Data Exchange (ETDEWEB)

    Westinghouse Electric Corporation, Waste Isolation Division

    1999-12-31

    The purpose of this document is to provide the technical requirements for preparation for use, operation, inspection, and maintenance of a Transuranic Package Transporter Model II (TRUPACT-II) Shipping Package and directly related components. This document complies with the minimum requirements as specified in the TRUPACT-II Safety Analysis Report for Packaging (SARP) and Nuclear Regulatory Commission (NRC) Certificate of Compliance (C of C) 9218. In the event there is a conflict between this document and the TRUPACT-II SARP, the TRUPACT-II SARP shall govern. TRUPACT-II C of C number 9218 states, ''... each package must be prepared for shipment and operated in accordance with the procedures described in Chapter 7.0, Operating Procedures, of the application.'' It further states, ''... each package must be tested and maintained in accordance with the procedures described in Chapter 8.0, Acceptance Tests and Maintenance Program of the application.'' Chapter 9 of the TRUPACT-II SARP charges the Westinghouse Electric Corporation Waste Isolation Division (WID) with assuring that the TRUPACT-II is used in accordance with the requirements of the C of C. To meet this requirement and verify consistency of operations when loading and unloading the TRUPACT-II on the trailer, placing a payload in the packaging, unloading the payload from the packaging, or performing maintenance, the U.S. Department of Energy Carlsbad Area Office (U.S. DOE/CAO) finds it necessary to implement the changes that follow. This TRUPACT-II maintenance document represents a change to previous philosophy regarding site specific procedures for the use of the TRUPACT-II. This document details the instructions to be followed to consistently operate and maintain the TRUPACT-II. The intent of these instructions is to ensure that all users of the TRUPACT-II follow the same or equivalent instructions. Users may achieve this intent by any of the following methods: (1

  10. Increasing Air Compressor Productivity While Reducing Maintenance and Repair Costs

    National Research Council Canada - National Science Library

    Foss, R. S

    1993-01-01

    .... When this vital utility is put into this perspective we can start to deal with the considerations of systems engineering, planning, performance evaluation, cost control and preventive maintenance...

  11. Different Transportation and Maintenance Strategies for Offshore Wind Farms

    DEFF Research Database (Denmark)

    Ambühl, Simon; Sørensen, John Dalsgaard

    as different maintenance strategies are considered. The report contains a case study where the presented approach is applied to a wind turbine farm and a sensitivity study of the different parameters like the operational range of the boat/helicopter, the electricity price, real rate of interest, inspection......Inspections as well as transportation of personnel and repair parts are a significant contributor to the levelized cost of energy for offshore wind turbines. There are different operation and maintenance (O&M) strategies for offshore wind turbines. Maintenance can be performed preventively...... of energy using different maintenance and transportation strategies....

  12. A review of e-maintenance capabilities and challenges

    Directory of Open Access Journals (Sweden)

    Adolfo Crespo Marquez

    2008-02-01

    Full Text Available Within the era of e-manufacturing and e-business, e-maintenance provides the opportunity for a new maintenance generation. E-maintenance integrates existing telemaintenance principles, with web-services and modern e-collaboration principles. Collaboration allows not only to share and exchange information but also knowledge and (e-intelligence. This paper outlines the basic capabilities provided by e-maintenance to companies as well as describes emerging challenges to benefit from these new operational improvement opportunities

  13. Analysis of Construction Accidents in Turkey and Responsible Parties

    OpenAIRE

    GÜRCANLI, G. Emre; MÜNGEN, Uğur

    2013-01-01

    Construction is one of the world’s biggest industry that includes jobs as diverse as building, civil engineering, demolition, renovation, repair and maintenance. Construction workers are exposed to a wide variety of hazards. This study analyzes 1,117 expert witness reports which were submitted to criminal and labour courts. These reports are from all regions of the country and cover the period 1972–2008. Accidents were classified by the consequence of the incident, time and main causes of the...

  14. Divergent language choices and maintenance of intersubjectivity

    DEFF Research Database (Denmark)

    aus der Wieschen, Maria Vanessa; Sert, Olcay

    2018-01-01

    The role of students’ first language(s) in foreign language classrooms has been hotly debated in the last decades. Although this line of research has advanced our understanding of language choice in the L2 classroom, it has mostly dealt with adolescent and adult learners. From a contextual perspe......-constructed in this classroom context are possible because the teacher encourages shared multilingual meaning-making practices. This research has implications for teaching EFL to young learners, and classroom language policies....

  15. Performance of continuously reinforced concrete pavements volume 5 : maintenance and repair of CRC pavements.

    Science.gov (United States)

    1998-10-01

    This report is one of a series of reports prepared as part of a recent study sponsored by the Federal Highway Administration (FHWA) aimed at updating the state-of-the-art of the design, construction, maintenance, and rehabiilitation of CRC pavements....

  16. 21 CFR 211.67 - Equipment cleaning and maintenance.

    Science.gov (United States)

    2010-04-01

    ... 21 Food and Drugs 4 2010-04-01 2010-04-01 false Equipment cleaning and maintenance. 211.67 Section 211.67 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED... Equipment cleaning and maintenance. (a) Equipment and utensils shall be cleaned, maintained, and, as...

  17. 49 CFR 236.919 - Operations and Maintenance Manual.

    Science.gov (United States)

    2010-10-01

    ..., INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Standards for Processor-Based Signal and Train Control Systems § 236.919 Operations and Maintenance Manual. (a... identify all software versions, revisions, and revision dates. Plans must be legible and correct. (c...

  18. 49 CFR 236.1039 - Operations and Maintenance Manual.

    Science.gov (United States)

    2010-10-01

    ..., INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Positive Train Control Systems § 236.1039 Operations and Maintenance Manual. (a) The railroad shall catalog and... software versions, revisions, and revision dates. Plans must be legible and correct. (c) Hardware, software...

  19. Operation and maintenance in Genkai PWR Plant

    International Nuclear Information System (INIS)

    Ohta, Shojiro

    1984-01-01

    The No.1 PWR plant with 559 MW capacity in the Genkai Nuclear Power Station, Kyushu Electric Power Co., Inc., required about 115 days for the regular inspection in fiscal 1982 and thereafter, although more maintenance work was done. But No.2 plant of the same type required not more than 80 days. In most cases, the period of one operation cycle was from 10 to 12 months, but in the third operation cycle of No.2 plant, it is expected to be 13 months. The capacity ratio of the whole power station was 75.2% at the end of fiscal 1983. These operational records all exceeded the Japanese average. The plants are two-loop Westinghouse type PWRs, and No.1 plant started the commercial operation of anti h and the increment of P 0 + . (author) apacity ratio of No.1 plant was 71.6%, and that of No.2 plant was 85.5%. The intergranular attack on steam generator tubes was found first in the fifth regular inspection, and also in the sixth and seventh inspections, and the faulty tubes were plugged. The prevention of its spread is the largest problem. The in-service quality assurance activity, the personnel training program and the effort of upgrading the plant availability are reported. (Kako, I.)

  20. Stochastic models in reliability and maintenance

    CERN Document Server

    2002-01-01

    Our daily lives can be maintained by the high-technology systems. Computer systems are typical examples of such systems. We can enjoy our modern lives by using many computer systems. Much more importantly, we have to maintain such systems without failure, but cannot predict when such systems will fail and how to fix such systems without delay. A stochastic process is a set of outcomes of a random experiment indexed by time, and is one of the key tools needed to analyze the future behavior quantitatively. Reliability and maintainability technologies are of great interest and importance to the maintenance of such systems. Many mathematical models have been and will be proposed to describe reliability and maintainability systems by using the stochastic processes. The theme of this book is "Stochastic Models in Reliability and Main­ tainability. " This book consists of 12 chapters on the theme above from the different viewpoints of stochastic modeling. Chapter 1 is devoted to "Renewal Processes," under which cla...

  1. Model of a Nuclear Security Naval Agency for radiation control of the Industrial Complex of of Submarine Construction and Maintenance Ship with Nuclear Propulsion; Modelo de uma Agência Naval de Segurança Nuclear para o controle radiológico do complexo industrial de construção e manutenção do submarino com propulsão nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Lins Junior, Amilton de Sousa

    2017-07-01

    Due to the construction, by Brazilian Navy, of a Submarine Construction and Maintenance Ship with Nuclear Propulsion, where, among other activities, the commissioning and exchange of the fuel elements of the reactor in the future Nuclear Submarine, and of a Naval Base where the Nuclear Submarine and the Conventional Submarines, it is necessary the establishment of a Nuclear Security Naval Agency to monitor activities involving ionizing radiation sources and nuclear materials aimed at the radiological protection of exposed occupationally individuals (IOE), the general public and the environment. It should be noted that nuclear and radioactive material will be present only in a part of the yard called Radiological Complex. Therefore, the development of a structure for the control of the Radiological Complex is fundamental, considering that the future licensing process will be unprecedented in Brazil and will face several difficulties. This work presents a model of a structure for the radiological control of the industrial complex for the construction and maintenance of the submarine with nuclear propulsion, as well as the fundamental concepts of the activities, such as inspection, regulations and authorizations, to be carried out by the various component sectors of the Nuclear Security Naval Agency. (author)

  2. FFTF constructibility

    International Nuclear Information System (INIS)

    Weber, S.A.; Hulbert, D.I.

    1975-01-01

    The influence of the design criteria on the constructibility of the Fast Flux Test Facility is described. Specifically, the effects of requirements due to maintenance accessibility, inerting of cells, seismicity, codes, and standards are addressed. The design and construction techniques developed to minimize the impact of the design criteria on cost and schedule are presented with particular emphasis on the cleanliness and humidity controls imposed during construction of the sodium systems. (U.S.)

  3. Road Maintenance and Rehabilitation Program Using Functional and Structural Assessment

    Science.gov (United States)

    Setianingsih, A. I.; Sangaji, S.; Setyawan, A.

    2017-02-01

    Road sector development policy in Bangka Belitung emphasis on equitable development, which is opening up new areas for industrial development zones of potential marine and coastal tourism, so that having an impact on the budget priority to build a new road. This led to a minimal budget provided for the maintenance of the existing road. This study aimed to evaluate the condition of the pavement both functionally and structurally, the growth of traffic density and the availability of existing road maintenance costs. Then, to analyze the influence of existing road conditions, traffic density and road maintenance costs to the type of road maintenance management. The results are compared with the results of the existing maintenance conducted by the Public Works Department of Bangka Belitung province. Evaluation of pavement conditions consists of visual assessment of pavement condition using IRI, pavement condition assessment functionally with deflection method using test data tool Benkelman Beam (BB) and the actual traffic load. IRI value, deflections and traffic growth gained from years 2011-2015 subsequently created regression models to obtain the relationship and the correlation coefficient. The analysis showed that using the same relative magnitude of the budget from 2011 to 2015, giving priority to the maintenance of the road with good conditions capable of providing the road with a steady state of 100%. Recommendations can be given that maintain the road with good conditions reflecting that preservation provide maximum results with the more efficient maintenance cost.

  4. Plant maintenance and advanced reactors issue, 2008

    Energy Technology Data Exchange (ETDEWEB)

    Agnihotri, Newal [ed.

    2009-09-15

    The focus of the September-October issue is on plant maintenance and advanced reactors. Major articles/reports in this issue include: Technologies of national importance, by Tsutomu Ohkubo, Japan Atomic Energy Agency, Japan; Modeling and simulation advances brighten future nuclear power, by Hussein Khalil, Argonne National Laboratory, Energy and desalination projects, by Ratan Kumar Sinha, Bhabha Atomic Research Centre, India; A plant with simplified design, by John Higgins, GE Hitachi Nuclear Energy; A forward thinking design, by Ray Ganthner, AREVA; A passively safe design, by Ed Cummins, Westinghouse Electric Company; A market-ready design, by Ken Petrunik, Atomic Energy of Canada Limited, Canada; Generation IV Advanced Nuclear Energy Systems, by Jacques Bouchard, French Commissariat a l'Energie Atomique, France, and Ralph Bennett, Idaho National Laboratory; Innovative reactor designs, a report by IAEA, Vienna, Austria; Guidance for new vendors, by John Nakoski, U.S. Nuclear Regulatory Commission; Road map for future energy, by John Cleveland, International Atomic Energy Agency, Vienna, Austria; and, Vermont's largest source of electricity, by Tyler Lamberts, Entergy Nuclear Operations, Inc. The Industry Innovation article is titled Intelligent monitoring technology, by Chris Demars, Exelon Nuclear.

  5. Methadone maintenance and the problem with alcohol.

    Science.gov (United States)

    Siassi, I; Alston, D C

    1976-01-01

    There is a growing concern with the rapid pace of physical and psychosocial deterioration of methadone patients who abuse alcohol. The need for a sample method for determining the extent of the problem, as well as the presence of an alcohol problem in individual patients, led the authors to test the validity of the Michigan Alcoholism Sreen Test (MAST) in a small urban methadone maintenance clinic (N = 125). The MAST was administered to every patient by their counselors, and the nursing staff was asked to independently rate each patient according to Keller's definition of alcoholism. The authors compared the patients' MAST scores with the global ratings of the nursing staff. Forty-six percent (n = 58) of the patients scored in the alcoholism range of the MAST questionnaire, while 34% (n = 43) of the patients were diagnosed as alcoholics by the nursing staff. There was 75% (n = 94) agreement between the MAST findings and the nurses' global ratings (p less than .001). The authors suggest that the MAST could be an effective screening tool in the area of alcohol abuse in methadone clinics. Going beyond the data, the authors recommend reexamination by psychiatrists of their peripheral role in the treatment of these difficult and multihandicapped patients.

  6. 24 CFR 1006.325 - Maintenance, management and efficient operation.

    Science.gov (United States)

    2010-04-01

    ... § 1006.325 Maintenance, management and efficient operation. (a) Written policies. The DHHL must develop... 24 Housing and Urban Development 4 2010-04-01 2010-04-01 false Maintenance, management and efficient operation. 1006.325 Section 1006.325 Housing and Urban Development Regulations Relating to Housing...

  7. 17 CFR 18.05 - Maintenance of books and records.

    Science.gov (United States)

    2010-04-01

    ... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Maintenance of books and... REPORTS BY TRADERS § 18.05 Maintenance of books and records. (a) Every trader who holds or controls a reportable futures or option position shall keep books and records showing all details concerning all...

  8. User Delay Cost Model and Facilities Maintenance Cost Model for a Terminal Control Area : Volume 3. User's Manual and Program Documentation for the Facilities Maintenance Cost Model

    Science.gov (United States)

    1978-05-01

    The Facilities Maintenance Cost Model (FMCM) is an analytic model designed to calculate expected annual labor costs of maintenance within a given FAA maintenance sector. The model is programmed in FORTRAN IV and has been demonstrated on the CDC Krono...

  9. Architecture and Key Techniques of Augmented Reality Maintenance Guiding System for Civil Aircrafts

    Science.gov (United States)

    hong, Zhou; Wenhua, Lu

    2017-01-01

    Augmented reality technology is introduced into the maintenance related field for strengthened information in real-world scenarios through integration of virtual assistant maintenance information with real-world scenarios. This can lower the difficulty of maintenance, reduce maintenance errors, and improve the maintenance efficiency and quality of civil aviation crews. Architecture of augmented reality virtual maintenance guiding system is proposed on the basis of introducing the definition of augmented reality and analyzing the characteristics of augmented reality virtual maintenance. Key techniques involved, such as standardization and organization of maintenance data, 3D registration, modeling of maintenance guidance information and virtual maintenance man-machine interaction, are elaborated emphatically, and solutions are given.

  10. Present Situation and Problems of Land Improvement District as an Operation and Maintenance Organization of Land Improvement Facilities

    OpenAIRE

    長堀, 金造; 赤江, 剛夫; 大田, 征六

    1994-01-01

    Land improvement districts originally started as organizations after World War II: They are in charge of construction and operation of irrigation and drainage facilities, Development of agricultural land, reclamation from sea water, reclamation by filling, Recovery from disaster, exchange and consolidation of agricultural land and so on. As the Main construction projects were completed, the purpose of land improvement districts Has shifted from facilities construction to operation and mainten...

  11. Nuclear maintenance strategy and first steps for preliminary maintenance plan of the EU HCLL & HCPB Test Blanket Systems

    Energy Technology Data Exchange (ETDEWEB)

    Galabert, Jose, E-mail: jose.galabert@f4e.europa.eu [F4E Fusion for Energy, EU Domestic Agency, c/Josep Pla, 2. B3, 08019, Barcelona (Spain); Hopper, Dave [AMEC Foster Wheeler, Faraday Street, Birchwood Park, WA3 6GN (United Kingdom); Neviere, Jean-Cristophe [ITER Organization, Route de Vinon-sur-Verdon, CS 90046, 13067, St. Paul Lez Durance Cedex (France); Nodwell, David [CCFE, Culham Science Centre, Abingdon, OX14 3DB, Oxfordshire (United Kingdom); Pascal, Romain [ITER Organization, Route de Vinon-sur-Verdon, CS 90046, 13067, St. Paul Lez Durance Cedex (France); Poitevin, Yves; Ricapito, Italo [F4E Fusion for Energy, EU Domestic Agency, c/Josep Pla, 2. B3, 08019, Barcelona (Spain); White, Gareth [AMEC Foster Wheeler, Faraday Street, Birchwood Park, WA3 6GN (United Kingdom)

    2017-03-15

    Highlights: • Nuclear maintenance strategy for the two European (EU) Test Blanket Systems (TBS): i/. Helium Cooled Lead Lithium (HCLL) and ii/. Helium Cooled Pebble Bed (HCPB). • Preliminary identification of maintenance tasks for most relevant components of the EU HCLL & HCPB TBS. • Preliminary feasibility analysis for hands-on maintenance tasks of some relevant components of the European Test Blanket Systems. • Design recommendations for enhancement of the European Test Blanket Systems maintainability. - Abstract: This paper gives an overview of nuclear maintenance strategy to be followed for the European HCLL & HCPB Test Blanket Systems (TBS) to be installed in ITER. One of the several core documents to prepare in view of their licensing is their respective ‘Maintenance Plan’. This document is fundamental for ensuring sound performance and safety of the TBS during ITER’s operational phase and shall include, amongst others, relevant information on: maintenance organization, preventive and corrective maintenance task procedures, condition monitoring for key components, maintenance work planning, and a spare parts plan, just to mention some of the key topics. In compliance with the ITER Plant Maintenance policy, first steps have been taken aimed at defining nuclear maintenance strategy for some of the most relevant HCLL & HCPB TBS components, conducted by F4E in collaboration with industry. After a brief recall of maintenance strategy of the TBM Program (PBS-56), this paper analyses main features of EU HCLL & HCPB TBS maintainability and identifies, at their conceptual design phase, a preliminary list of maintenance tasks to be developed for their most representative components. In addition, the paper also presents the first nuclear maintenance studies conducted for replacement of the Q{sub 2} Getter Beds, identifying some design recommendations for their sound maintainability.

  12. Nuclear maintenance strategy and first steps for preliminary maintenance plan of the EU HCLL & HCPB Test Blanket Systems

    International Nuclear Information System (INIS)

    Galabert, Jose; Hopper, Dave; Neviere, Jean-Cristophe; Nodwell, David; Pascal, Romain; Poitevin, Yves; Ricapito, Italo; White, Gareth

    2017-01-01

    Highlights: • Nuclear maintenance strategy for the two European (EU) Test Blanket Systems (TBS): i/. Helium Cooled Lead Lithium (HCLL) and ii/. Helium Cooled Pebble Bed (HCPB). • Preliminary identification of maintenance tasks for most relevant components of the EU HCLL & HCPB TBS. • Preliminary feasibility analysis for hands-on maintenance tasks of some relevant components of the European Test Blanket Systems. • Design recommendations for enhancement of the European Test Blanket Systems maintainability. - Abstract: This paper gives an overview of nuclear maintenance strategy to be followed for the European HCLL & HCPB Test Blanket Systems (TBS) to be installed in ITER. One of the several core documents to prepare in view of their licensing is their respective ‘Maintenance Plan’. This document is fundamental for ensuring sound performance and safety of the TBS during ITER’s operational phase and shall include, amongst others, relevant information on: maintenance organization, preventive and corrective maintenance task procedures, condition monitoring for key components, maintenance work planning, and a spare parts plan, just to mention some of the key topics. In compliance with the ITER Plant Maintenance policy, first steps have been taken aimed at defining nuclear maintenance strategy for some of the most relevant HCLL & HCPB TBS components, conducted by F4E in collaboration with industry. After a brief recall of maintenance strategy of the TBM Program (PBS-56), this paper analyses main features of EU HCLL & HCPB TBS maintainability and identifies, at their conceptual design phase, a preliminary list of maintenance tasks to be developed for their most representative components. In addition, the paper also presents the first nuclear maintenance studies conducted for replacement of the Q_2 Getter Beds, identifying some design recommendations for their sound maintainability.

  13. A bivariate process model for maintenance and inspection planning

    NARCIS (Netherlands)

    Newby, M.J.; Barker, C.T.

    2006-01-01

    The paper describes decision making about monitoring and maintenance of systems described by a general stochastic process. The system is monitored and preventive and corrective maintenance actions are carried out in response to the observed system state. The decision process is simplified by using

  14. 30 CFR 49.6 - Equipment and maintenance requirements.

    Science.gov (United States)

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Equipment and maintenance requirements. 49.6... TRAINING MINE RESCUE TEAMS § 49.6 Equipment and maintenance requirements. (a) Each mine rescue station... indicates that a corrective action is necessary, the corrective action shall be made and the person shall...

  15. Robotics and remote maintenance concepts for fusion machines

    International Nuclear Information System (INIS)

    1989-02-01

    Descriptions of operation and maintenance of current tokamaks (TFTR, JET, JT-60) is discussed in the context of radioactivation resulting from thermonuclear reactions. Plans for future devices (NET, CIT, FGR) with respect to remote handling, maintenance, measurements, and robotics are discussed. Refs, figs and tabs

  16. 28 CFR 5.500 - Maintenance of books and records.

    Science.gov (United States)

    2010-07-01

    ... 28 Judicial Administration 1 2010-07-01 2010-07-01 false Maintenance of books and records. 5.500... AGENTS REGISTRATION ACT OF 1938, AS AMENDED § 5.500 Maintenance of books and records. (a) A registrant shall keep and preserve in accordance with the provisions of section 5 of the Act the following books...

  17. Predictive maintenance of maritime systems : models and challenges

    NARCIS (Netherlands)

    Tinga, T.; Tiddens, W.W.; Amoiralis, F.; Politis, M.; Cepin, Marko; Bris, Radim

    2017-01-01

    To reduce maintenance and logistic costs and increase the asset availability, a predictive maintenance concept for maritime systems is developed. In the present paper, the physics-of-failure based prognostic methods will be introduced, but also other issues related to the development and application

  18. 50 CFR 600.410 - Collection and maintenance of statistics.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 8 2010-10-01 2010-10-01 false Collection and maintenance of statistics... of Statistics § 600.410 Collection and maintenance of statistics. (a) General. (1) All statistics..., the Assistant Administrator will remove all identifying particulars from the statistics if doing so is...

  19. 32 CFR 935.140 - Motor vehicle maintenance and equipment.

    Science.gov (United States)

    2010-07-01

    ... 32 National Defense 6 2010-07-01 2010-07-01 false Motor vehicle maintenance and equipment. 935.140... AND INSULAR REGULATIONS WAKE ISLAND CODE Motor Vehicle Code § 935.140 Motor vehicle maintenance and equipment. (a) Each person who has custody of a motor vehicle on Wake Island shall present that vehicle for...

  20. 42 CFR 493.1254 - Standard: Maintenance and function checks.

    Science.gov (United States)

    2010-10-01

    ...'s equipment, instruments, or test systems. The laboratory must perform and document the following... available and modified by the laboratory, or maintenance and function check protocols are not provided by the manufacturer. The laboratory must do the following: (1)(i) Establish a maintenance protocol that...

  1. Constructive Memory: Past and Future

    OpenAIRE

    Schacter, Daniel L.

    2012-01-01

    Human memory is not a literal reproduction of the past, but instead relies on constructive processes that are sometimes prone to error and distortion. Understanding of constructive memory has accelerated during recent years as a result of research that has linked together its cognitive and neural bases. This article focuses on three aspects of constructive memory that have been the target of recent research: (i) the idea that certain kinds of memory distortions reflect the operation of adapti...

  2. Implementation of sustainable and green design and construction practices for bridges.

    Science.gov (United States)

    2012-12-01

    The focus of this research is to develop a framework for more sustainable design and construction : processes for new bridges, and sustainable maintenance practices for existing bridges. The framework : includes a green rating system for bridges. The...

  3. Hardware and software maintenance strategies for upgrading vintage computers

    International Nuclear Information System (INIS)

    Wang, B.C.; Buijs, W.J.; Banting, R.D.

    1992-01-01

    The paper focuses on the maintenance of the computer hardware and software for digital control computers (DCC). Specific design and problems related to various maintenance strategies are reviewed. A foundation was required for a reliable computer maintenance and upgrading program to provide operation of the DCC with high availability and reliability for 40 years. This involved a carefully planned and executed maintenance and upgrading program, involving complementary hardware and software strategies. The computer system was designed on a modular basis, with large sections easily replaceable, to facilitate maintenance and improve availability of the system. Advances in computer hardware have made it possible to replace DCC peripheral devices with reliable, inexpensive, and widely available components from PC-based systems (PC = personal computer). By providing a high speed link from the DCC to a PC, it is now possible to use many commercial software packages to process data from the plant. 1 fig

  4. Energeia of maintenance. Knowledge resource maintenance and creation of new value

    International Nuclear Information System (INIS)

    Iwata, Shuichi

    2011-01-01

    After the Fukushima accident occurred in March 2011, the intellectual energeia of maintenology (motive force of implementation) - 'arrow of information' - could be obtained by trying to establish academic agenda from uniting 'arrow of time' and 'arrow of entropy' based on historical review and then dividing characteristics of maintenance objects needed from society in the future, into content, context and measures in order to overcome this chaos. Looking at contaminated area map around Chernobyl and comparing state of Ukraine elapsed 25 years after Chernobyl accident with that of Fukushima in great social anxiety at present, various 'arrow of information' could be enumerated such as (1) openness of content of accident information and evaluation of context, (2) safety and stability of social society, (3) perfect individual's care and human right for knowing risk, (4) data literacy, (5) various risks, (6) data dissemination and (7) utilization of outsider's view. Knowledge maintenology should be expanded in the area such as (1) preservation of global environment and maintenology, (2) problem of contaminated area with radioactive materials: data science and maintenology, (3) maintenance of large artificial product: experimental science, theoretical science, computational science and maintenology, (4) maintenance of knowledge related with events having complicated causality: design science responding to various risks. As for utilization of nuclear energy, maintenance technology, which shall balance its benefit and risk of society and establish science needed for security of all human being -a raison d'etre and energeia of maintenology-, should be considered for upper structure about global energy, environment, economics and politics (including military affairs) and human society, not for respective energy system in specific country or organization. Fundamentals of energeia of maintenology shall be implemented in the same spirit of 'Yui', small mutual aid organization

  5. 76 FR 70166 - Electrical Standards for Construction and General Industry; Extension of the Office of Management...

    Science.gov (United States)

    2011-11-10

    ...] Electrical Standards for Construction and General Industry; Extension of the Office of Management and Budget... contained in the Electrical Standards for Construction (29 CFR part 1926, Subpart K) and for General... maintenance of electric utilization equipment that prevent death and serious injuries among construction and...

  6. Housing management and maintenance practise of Dutch housing associations

    NARCIS (Netherlands)

    Straub, A.

    This paper summarises the state-of-the-art in housing management and maintenance practise of Dutch housing associations based on a survey conducted among almost all housing associations. We address the question what the current developments are in housing management and maintenance practice in the

  7. Aboriginal Language Maintenance, Development, and Enhancement: A Review of Literature.

    Science.gov (United States)

    Burnaby, Barbara

    This paper offers a general review of literature relating to the maintenance, development, and enhancement of Aboriginal languages in North America, particularly Canada. Drawing primarily on sociolinguistics, several concepts about language usage and change are outlined that are useful for the purposes of thinking about language maintenance. Next,…

  8. 7 CFR 654.12 - Financing operations and maintenance.

    Science.gov (United States)

    2010-01-01

    ... 7 Agriculture 6 2010-01-01 2010-01-01 false Financing operations and maintenance. 654.12 Section 654.12 Agriculture Regulations of the Department of Agriculture (Continued) NATURAL RESOURCES... Financially-Assisted Projects § 654.12 Financing operations and maintenance. Sources of funds needed to...

  9. 14 CFR 171.273 - Maintenance and operations requirements.

    Science.gov (United States)

    2010-01-01

    ... authorized persons. (3) FCC licensing requirements for operations and maintenance personnel. (4) Posting of..., with a maximum corrective maintenance time of not greater than 1.5 hours. This measure applies to... than 1,500 hours. This measure applies to unscheduled outages, out-of-tolerance conditions, and...

  10. Risk-Based Operation and Maintenance of Offshore Wind Turbines

    DEFF Research Database (Denmark)

    Nielsen, Jannie Jessen; Sørensen, John Dalsgaard

    2009-01-01

    For offshore wind turbines costs to operation and maintenance are substantial. This paper describes a risk-based lifecycle approach for optimal planning of operation and maintenance. The approach is based on pre-posterior Bayesian decision theory. Deterioration mechanisms such as fatigue, corrosion...

  11. Development and application of degradation modeling to define maintenance practices

    International Nuclear Information System (INIS)

    Stock, D.; Samanta, P.; Vesely, W.

    1994-06-01

    This report presents the development and application of component degradation modeling to analyze degradation effects on reliability and to identify aspects of maintenance practices that mitigate degradation and aging effects. Using continuous time Markov approaches, a component degradation model is discussed that includes information about degradation and maintenance. The component model commonly used in probabilistic risk assessments is a simple case of this general model. The parameters used in the general model have engineering interpretations and can be estimated using data and engineering experience. The generation of equations for specific models, the solution of these equations, and a methodology for estimating the needed parameters are all discussed. Applications in this report show how these models can be used to quantitatively assess the benefits that are expected from maintaining a component, the effects of different maintenance efficiencies, the merits of different maintenance policies, and the interaction of surveillance test intervals with maintenance practices

  12. PSO Based Optimization of Testing and Maintenance Cost in NPPs

    Directory of Open Access Journals (Sweden)

    Qiang Chou

    2014-01-01

    Full Text Available Testing and maintenance activities of safety equipment have drawn much attention in Nuclear Power Plant (NPP to risk and cost control. The testing and maintenance activities are often implemented in compliance with the technical specification and maintenance requirements. Technical specification and maintenance-related parameters, that is, allowed outage time (AOT, maintenance period and duration, and so forth, in NPP are associated with controlling risk level and operating cost which need to be minimized. The above problems can be formulated by a constrained multiobjective optimization model, which is widely used in many other engineering problems. Particle swarm optimizations (PSOs have proved their capability to solve these kinds of problems. In this paper, we adopt PSO as an optimizer to optimize the multiobjective optimization problem by iteratively trying to improve a candidate solution with regard to a given measure of quality. Numerical results have demonstrated the efficiency of our proposed algorithm.

  13. Operation and maintenance strategies for wave energy converters

    DEFF Research Database (Denmark)

    Ambühl, Simon; Marquis, Laurent; Kofoed, Jens Peter

    2015-01-01

    costs including costs due to lost electricity production are minimized. The risk-based approach is compared with an approach where only boats are used and another approach where the target is to minimize the downtime of the device. This article presents a dynamic approach for total operation......Inspection and maintenance costs are a significant contributor to the cost of energy for wave energy converters. There are different operation and maintenance strategies for wave energy converters. Maintenance can be performed after failure (corrective) or before a breakdown (preventive) occurs....... Furthermore, a helicopter and boats can be used to transport equipment and personnel to the device, or the whole device can be towed to a harbour for operation and maintenance actions. This article describes, among others, a risk-based inspection and maintenance planning approach where the overall repair...

  14. Software maintenance and evolution and automated software engineering

    NARCIS (Netherlands)

    Carver, Jeffrey C.; Serebrenik, Alexander

    2018-01-01

    This issue's column reports on the 33rd International Conference on Software Maintenance and Evolution and 32nd International Conference on Automated Software Engineering. Topics include flaky tests, technical debt, QA bots, and regular expressions.

  15. Constructive Dimension and Turing Degrees

    OpenAIRE

    Bienvenu, Laurent; Doty, David; Stephan, Frank

    2007-01-01

    This paper examines the constructive Hausdorff and packing dimensions of Turing degrees. The main result is that every infinite sequence S with constructive Hausdorff dimension dim_H(S) and constructive packing dimension dim_P(S) is Turing equivalent to a sequence R with dim_H(R) 0. Furthermore, if dim_P(S) > 0, then dim_P(R) >= 1 - epsilon. The reduction thus serves as a *randomness extractor* that increases the algorithmic randomness of S, as measured by constructive dimension. A number of...

  16. Aircraft Maintenance Engineering: Factors Impacting Airlines E-Maintenance Technologies, Authoring and Illustrations

    Science.gov (United States)

    Karayianes, Frank

    The purpose of this research was to evaluate factors influencing acceptance and use of technologies in the field of aircraft maintenance authoring, graphics, and documentation. Maintenance engineering authors convert complex engineering used in aircraft production and transform that data using technology (tools) into usable technical publications data. While the current literature includes a large volume of research in technology acceptance in various domains of industry and business, the problem is that no such studies exist with respect to the aircraft maintenance engineering authoring, allowing any number of tools to be used and acceptance to be unsure. The study was based on theoretical approaches of the Technology Acceptance Model and the associated hypothesis related to eight research questions. A survey questionnaire was developed for data collection from a selected population of aircraft maintenance engineering authors. Data collected from 148 responses were exposed to a range of statistical methods and analyses. Analysis of data were performed within the structural equation model using exploratory factor analysis, confirmatory factor analysis, and a range of regression methods. The analyses generally provided results consistent with prior literature. Two survey questions yielded unexpected results contrary to similar studies. The relationship between prior experience and job level did not show a significant relationship with perceived usefulness or perceived ease of use. Other results included the significant relationship between Perceived Usefulness and Perceived Ease of Use with Technology acceptance. Recommendations include understanding how Technology Acceptance can be improved for the industry and the need for further research not covered to refine recommendations for technology acceptance related to the aviation industry.

  17. The ITER EC H and CD Upper Launcher: Maintenance concepts

    International Nuclear Information System (INIS)

    Ronden, D.M.S.; Baar, M. de; Chavan, R.; Elzendoorn, B.S.Q.; Grossetti, G.; Heemskerk, C.J.M.; Koning, J.F.; Landis, J.-D.; Spaeh, P.; Strauss, D.

    2013-01-01

    Highlights: ► We explain how an overall maintenance strategy defines individual maintenance tasks. ► Concepts are presented for replacement strategies of the in-vessel optical components. ► Vertical placement of the Upper Launcher in the Hot Cell may simplify maintenance. -- Abstract: Maintenance of the ITER EC H and CD Upper Launcher (UL) shall be performed through the use of Remote Handling (RH) in the ITER Hot Cell Facility (HCF). The UL design will have to be fully compliant with ITER RH maintenance requirements and the set of RH tooling and services available in the HCF. This paper describes the development of an overall maintenance strategy for the UL, starting from a listing of all conceivable maintenance operations, including hands-on tasks. Components for which design concepts are discussed in this paper are the Blanket Shield Module (BSM), the steering mirror (M4), the mid optics (M1, M2) and the waveguide (WG) feed-through plate. Aspects related to RH documentation, overall maintenance strategy and design concepts for optimizing the maintainability of the UL are presented

  18. Understanding and Predicting the Process of Software Maintenance Releases

    Science.gov (United States)

    Basili, Victor; Briand, Lionel; Condon, Steven; Kim, Yong-Mi; Melo, Walcelio L.; Valett, Jon D.

    1996-01-01

    One of the major concerns of any maintenance organization is to understand and estimate the cost of maintenance releases of software systems. Planning the next release so as to maximize the increase in functionality and the improvement in quality are vital to successful maintenance management. The objective of this paper is to present the results of a case study in which an incremental approach was used to better understand the effort distribution of releases and build a predictive effort model for software maintenance releases. This study was conducted in the Flight Dynamics Division (FDD) of NASA Goddard Space Flight Center(GSFC). This paper presents three main results: 1) a predictive effort model developed for the FDD's software maintenance release process; 2) measurement-based lessons learned about the maintenance process in the FDD; and 3) a set of lessons learned about the establishment of a measurement-based software maintenance improvement program. In addition, this study provides insights and guidelines for obtaining similar results in other maintenance organizations.

  19. Maintenance of fire systems and equipment at Virginia Power

    International Nuclear Information System (INIS)

    Doubrely, E.B. Jr.

    1989-01-01

    The basics of fire protection systems maintenance are well codified and documented in the National Fire Codes published by the National Fire Protection Association. In addition, Insurers often promulgate minimum standards for fire protection systems design and maintenance to which they attach conditions of insurability. Regulatory agencies and even in-house corporate policies can impact the maintenance of fire protection systems and equipment. This presentation will focus on the various methods and alternate ways of performing system maintenance, whether required by code, insurer, or by some regulatory commitment at Virginia Powers North Anna and Surry nuclear power stations. The approach to performing similar work is handled differently at each station. This difference can be attributed to proximity to outside assistance as well as plant philosophy. In addition to station maintenance practices, a discussion of in-house servicing of portable fire suppression equipment is offered. 1 tab

  20. Building Maintenance. Reading and Language Activities.

    Science.gov (United States)

    Kessman, William A.

    The student manual has been designed primarily for beginning students in a high school level vocational program in building maintenance. A workbook for special needs students, the document does not cover all areas of custodial training but has been written for the purpose of refining the basic skills of reading comprehension, vocabulary building,…

  1. 7 CFR 1767.27 - Operation and maintenance expenses.

    Science.gov (United States)

    2010-01-01

    ..., DEPARTMENT OF AGRICULTURE (CONTINUED) ACCOUNTING REQUIREMENTS FOR RUS ELECTRIC BORROWERS Uniform System of... Waterways 544Maintenance of Electric Plant 545Maintenance of Miscellaneous Hydraulic Plant Other Power....1Load Dispatch-Reliability 561.2Load Dispatch-Monitor and Operate Transmission System 561.3Load Dispatch...

  2. Coordinating technician allocation and maintenance routing for offshore wind farms

    NARCIS (Netherlands)

    Schrotenboer, Albert H.; uit het Broek, Michiel A. J.; Jargalsaikhan, Bolor; Roodbergen, Kees Jan

    2018-01-01

    A maintenance activity at offshore wind farms requires a combination of technicians with different skills. At an operational level, it is important to fully utilize and coordinate technicians in order to increase efficiency of the short-term maintenance planning. In this paper, we investigate

  3. Risk based maintenance: Resource requirements and organizational challenges

    International Nuclear Information System (INIS)

    Weerakkody, S.D.

    2000-01-01

    10CFR50.65 'Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants' required licensees to monitor the performance or condition of structures, systems, or components (SSCs) against licensee established goals, in a manner sufficient to provide reasonable assurance that such SSCs are capable of fulfilling their intended functions. The goals were required to be commensurate with safety significance and operating experience. Northeast Utilities relied upon PRAs to implement 10CFR50.65, which is also referred to as the 'Maintenance Rule'. The Maintenance Rule changed some aspects of maintenance of structures, systems, and components (SSC) at nuclear power plants. One objective of the rule was to focus the maintenance resources based on risk significance of components. This paper will discuss the organizational challenges and resource requirements associated with implementation of the Maintenance Rule at nuclear facilities that are supported by the Northeast Utilities Services Company (NUSCo). The paper will discuss (a) how these challenges were addressed, (b) the resources required for ongoing efforts to support the Maintenance Rule, and (c) several key safety benefits derived from the implementation of the Maintenance Rule. (author)

  4. 20 CFR 416.1157 - Support and maintenance assistance.

    Science.gov (United States)

    2010-04-01

    ... Section 416.1157 Employees' Benefits SOCIAL SECURITY ADMINISTRATION SUPPLEMENTAL SECURITY INCOME FOR THE... agency designated by the chief executive officer of the State to handle the State's responsibilities as... maintenance as defined in § 416.1121(h). Support and maintenance assistance includes home energy assistance...

  5. Operation and maintenance results from ISFOC CPV plants

    Science.gov (United States)

    Gil, Eduardo; Martinez, María; de la Rubia, Oscar

    2017-09-01

    The analysis of field operation and maintenance data collected during a period of over eight years, from CPV installations consisting of three different CPV technologies (including second generation of one of these technologies), has allowed us to get valuable information about the long-term degradation of the CPV systems. Through the study of the maintenance control ratio previously defined and by applying the root cause analysis methodology, the components responsible for the most unplanned interventions for each technology were identified. Focusing maintenance efforts on these components, a reduction of the unplanned interventions and the total cost of maintenance has been achieved over the years. Therefore, the deployment of an effective maintenance plan, identifying critical components, is essential to minimize the risk for investors and maximize the CPV power plants lifetime and energy output, increasing the availability of CPV installations, boosting market confidence in CPV systems.

  6. A study of adopting maintenance rule under the periodic safety review and reliability centered maintenance program

    International Nuclear Information System (INIS)

    Kilyoo, Kim

    2001-01-01

    U.S Maintenance Rule (MR) has three main functions. One is to monitor the performance changes of SSCs (Structure, System, and Component) caused by risk informed applications. Periodic Safety Review (PSR) program is widely adopted in Europe while it is not adopted in U. S. A where MR and new oversight program are instead used. Recently, in Korea, it was determined to adopt PSR, and the first PSR program has started this year for Kori unit 1 as a pilot plant. Also, a traditional Reliability Centered Maintenance (RCM) has been performed for 4 systems of YGN unit 1 and 2 and it will be applied to the other nuclear power plants in Korea. However, since MR is adopting many useful concept of RCM, traditional RCM could not be further performed without being associated with MR. Thus, MR, RCM and PSR have recently become hot issue policies which should be well associated each other in Korea, and this paper suggests a desirable new maintenance process which would embrace the concepts of the three policies, and also discusses whether U.S. MR is necessary even though a PSR program is already adopted, and if necessary, then how cost-effectively it can be introduced to. (author)

  7. Research on construction quality and improvement of assembly construction

    Science.gov (United States)

    Cheng, Fei

    2017-11-01

    Based on the acceleration of the urbanization process and the improvement of the quality of life of our residents, the demand for building construction has been increasing. In this context, the construction industry in order to promote the construction efficiency, quality improvement, to meet the needs of the development of the times to strengthen the new technology, the use of new technologies. At present, China’s engineering construction units in the process of carrying out the project to strengthen the use of assembly-type construction technology, which thus achieved for the traditional construction work low-level, high time-consuming issues, and promote the steady improvement of production efficiency. Based on this, this paper focuses on the analysis of the connotation of the assembly structure and analyzes the quality problems in the construction process of the construction projects and puts forward the improvement measures to promote the improvement of the building quality and the construction of the building Construction speed. Based on this, this paper analyzes the structural system and design of prefabricated building.

  8. Routine check and annual maintenance for industrial radiography gamma projector

    International Nuclear Information System (INIS)

    Shaharudin Sayuti; Abdul Nassir Ibrahim; Sukhri Ahmad; Arshad Yassin; Mohd Junaidi Jaapar; Khairul Anuar Mohd Salleh; Abdul Razak Hamzah

    2009-04-01

    The main objective of this paper is to share some experience pertaining to gamma projector maintenance programme. In Malaysia there are more than 100 gamma projectors, which need to be maintenance annually. Most of these projectors are Tech-Ops 660 series portable gamma radiography systems, which are used primarily for industrial radiography. The portability feature of the system provides both a safe means of transporting the radioactive source and operating flexibility, particularly useful in areas where access is limited. Generally, the national authorised service centre carries out the annual inspection of this system. In Malaysia, Malaysian Nuclear Agency has been recognised as the National Gamma Projector Maintenance Centre by the Atomic Energy Licensing Board (AELB). In this paper, a brief review of the design and operation is included in the discussion of the maintenance procedure, limitations and improvements of the gamma projector maintenance programme. (author)

  9. Dynamical model of birdsong maintenance and control

    Science.gov (United States)

    Abarbanel, Henry D. I.; Talathi, Sachin S.; Mindlin, Gabriel; Rabinovich, Misha; Gibb, Leif

    2004-11-01

    The neuroethology of song learning, production, and maintenance in songbirds presents interesting similarities to human speech. We have developed a biophysical model of the manner in which song could be maintained in adult songbirds. This model may inform us about the human counterpart to these processes. In songbirds, signals generated in nucleus High Vocal center (HVc) follow a direct route along a premotor pathway to the robust nucleus of the archistriatum (RA) as well as an indirect route to RA through the anterior forebrain pathway (AFP): the neurons of RA are innervated from both sources. HVc expresses very sparse bursts of spikes having interspike intervals of about 2ms . The expressions of these bursts arrive at the RA with a time difference ΔT≈50±10ms between the two pathways. The observed combination of AMPA and NMDA receptors at RA projection neurons suggests that long-term potentiation and long-term depression can both be induced by spike timing plasticity through the pairing of the HVc and AFP signals. We present a dynamical model that stabilizes this synaptic plasticity through a feedback from the RA to the AFP using known connections. The stabilization occurs dynamically and is absent when the RA→AFP connection is removed. This requires a dynamical selection of ΔT . The model does this, and ΔT lies within the observed range. Our model represents an illustration of a functional consequence of activity-dependent plasticity directly connected with neuroethological observations. Within the model the parameters of the AFP, and thus the magnitude of ΔT , can also be tuned to an unstable regime. This means that destabilization might be induced by neuromodulation of the AFP.

  10. A strategic value management approach for energy and maintenance management in a building

    Science.gov (United States)

    Nawi, Mohd Nasrun Mohd; Dahlan, Nofri Yenita; Nadarajan, Santhirasegaran

    2015-05-01

    Fragmentation process is always been highlighted by the stakeholders in the construction industry as one of the `critical' issue that diminishing the opportunity for stakeholders that involved during the operation and maintenance stage to influence design decisions. Failure of design professionals to consider how a maintenance contractor or facility manager will construct the design thus results in higher operating cost, wastage, defects during the maintenance and operation process. Moving towards team integration is considered a significant strategy for overcoming the issue. Value Management is a style of management dedicated to guiding people and promoting innovation with the aim to improve overall building performance through structured, team-oriented exercises which make explicit, and appraise subsequent decisions, by reference to the value requirements of the clients. Accordingly, this paper discusses the fragmentation issue in more detail including the definition, causes and effects to the maintenance and operation of building and at the same time will highlighted the potential of VM integrated team approach as a strategic management approach for overcoming that issue. It also explores that the team integration strategy alleviates scheduling problems, delays and disputes during the construction process, and, hence, prevent harming the overall building performance.

  11. Combinatorial designs constructions and analysis

    CERN Document Server

    Stinson, Douglas R

    2004-01-01

    Created to teach students many of the most important techniques used for constructing combinatorial designs, this is an ideal textbook for advanced undergraduate and graduate courses in combinatorial design theory. The text features clear explanations of basic designs, such as Steiner and Kirkman triple systems, mutual orthogonal Latin squares, finite projective and affine planes, and Steiner quadruple systems. In these settings, the student will master various construction techniques, both classic and modern, and will be well-prepared to construct a vast array of combinatorial designs. Design theory offers a progressive approach to the subject, with carefully ordered results. It begins with simple constructions that gradually increase in complexity. Each design has a construction that contains new ideas or that reinforces and builds upon similar ideas previously introduced. A new text/reference covering all apsects of modern combinatorial design theory. Graduates and professionals in computer science, applie...

  12. Operation and maintenance in the cooling and ventilation group

    OpenAIRE

    Bangert, N

    2003-01-01

    A core team of CERN staff is running the daily operations of the cooling and ventilation equipment at CERN, thus assuring multiple interfaces such as constant contact with the users of existing installations, the project leaders for new installations and intern-divisional communication. As support of this team, re-tendered contracts with external companies for the maintenance and operational tasks have been put into place multiple years ago. Higherlevel maintenance continues to be entrusted t...

  13. Status of the maintenance for the KEK 12GEV-PS main ring and power supply

    International Nuclear Information System (INIS)

    Sato, Hikaru; Igarashi, Susumu; Marutsuka, Katsumi; Mikawa, Katsuhiko; Shirakata, Masashi; Sueno, Tsuyoshi; Tokuda, Noboru

    2004-01-01

    More than 30 years passed since the KEK 12GeV-PS construction, some of accelerator equipments are highly radiated, especially the injection and the extraction equipments. In recent years, the higher intensity beam has been required for such as the long baseline neutrino oscillation experiment and rare decay experiments. Then, the circumference of the maintenance work has become severe. Further, almost equipments of main ring and power supply have deteriorated. Status of the Maintenance for the KEK 12GeV-PS main ring and power supply are presented. (author)

  14. Bulk Fuel Storage and Delivery Systems Infrastructure Military Construction Requirements for Japan

    National Research Council Canada - National Science Library

    Padgett, Gary

    2000-01-01

    This report is one in a series that addresses the accuracy and reliability of maintenance, repair, and environmental and construction requirements for bulk fuel storage and delivery systems infrastructure...

  15. Construction contracts law and management

    CERN Document Server

    Hughes, Will; Murdoch, John

    2015-01-01

    The fifth edition of this bestselling textbook has been thoroughly revised to provide the most up-to-date and comprehensive coverage of the legislation, administration and management of construction contracts. It now includes comparisons of working with JCT, NEC3, and FIDIC contracts throughout. Introducing this topic at the core of construction law and management, this book provides students with a one-stop reference on construction contracts. Significant new material covers: procurement tendering developments in dispute settlement commentary on all key legislation, case law and contract amendments In line with new thinking in construction management research, this authoritative guide is essential reading for every construction undergraduate and an extremely useful source of reference for practitioners.

  16. Ballistic characteristics improving and maintenance of protective ballistic vests

    OpenAIRE

    RADONJIC VOJKAN M.; JOVANOVIC DANKO M.; ZIVANOVIC GORAN Z.; RESIMIC BRANKO V.

    2014-01-01

    The work presents research of the materials necessary for the maintenance of protective ballistic vests. In this paper is proposed a new construction design with modern materials for ballistic inserts producing. This paper also presents the results of laboratory tests of ballistic cartridges with new materials. Based on the test results, it can be concluded, the proposed technical solution for making ballistic inserts adequately meets current standards.

  17. The methodic of calculation for the need of basic construction machines on construction site when developing organizational and technological documentation

    Science.gov (United States)

    Zhadanovsky, Boris; Sinenko, Sergey

    2018-03-01

    Economic indicators of construction work, particularly in high-rise construction, are directly related to the choice of optimal number of machines. The shortage of machinery makes it impossible to complete the construction & installation work on scheduled time. Rates of performance of construction & installation works and labor productivity during high-rise construction largely depend on the degree of provision of construction project with machines (level of work mechanization). During calculation of the need for machines in construction projects, it is necessary to ensure that work is completed on scheduled time, increased level of complex mechanization, increased productivity and reduction of manual work, and improved usage and maintenance of machine fleet. The selection of machines and determination of their numbers should be carried out by using formulas presented in this work.

  18. Method and computer program product for maintenance and modernization backlogging

    Science.gov (United States)

    Mattimore, Bernard G; Reynolds, Paul E; Farrell, Jill M

    2013-02-19

    According to one embodiment, a computer program product for determining future facility conditions includes a computer readable medium having computer readable program code stored therein. The computer readable program code includes computer readable program code for calculating a time period specific maintenance cost, for calculating a time period specific modernization factor, and for calculating a time period specific backlog factor. Future facility conditions equal the time period specific maintenance cost plus the time period specific modernization factor plus the time period specific backlog factor. In another embodiment, a computer-implemented method for calculating future facility conditions includes calculating a time period specific maintenance cost, calculating a time period specific modernization factor, and calculating a time period specific backlog factor. Future facility conditions equal the time period specific maintenance cost plus the time period specific modernization factor plus the time period specific backlog factor. Other embodiments are also presented.

  19. The role of romantic attraction and conflict resolution in predicting shorter and longer relationship maintenance among adolescents.

    Science.gov (United States)

    Appel, Israel; Shulman, Shmuel

    2015-04-01

    This study examined the role of romantic attraction and conflict resolution patterns in shorter and longer relationship maintenance among adolescent couples. Data were used from 55 couples aged 15-18 years. Partners completed the Romantic Attraction scale and were observed negotiating a disagreement. Three and 6 months later, they were asked to report whether they were still together. Findings indicated that partners' romantic attraction and the tendency to minimize disagreements during interaction predicted shorter relationship maintenance. In contrast, longer relationship maintenance was predicted by partners' capability to resolve conflicts constructively in a positive atmosphere. Findings are embedded and discussed within Fisher's (2004) evolutionary theory of love.

  20. Construction and operation costs of constructed wetlands treating wastewater.

    Science.gov (United States)

    Gkika, Dimitra; Gikas, Georgios D; Tsihrintzis, Vassilios A

    2014-01-01

    Design data from nine constructed wetlands (CW) facilities of various capacities (population equivalent (PE)) are used to estimate construction and operation costs, and then to derive empirical equations relating the required facility land area and the construction cost to PE. In addition, comparisons between the costs of CW facilities based on various alternative construction materials, i.e., reinforced concrete and earth structures (covered with either high density polyethylene or clay), are presented in relation to the required area. The results show that earth structures are economically advantageous. The derived equations can be used for providing a preliminary cost estimate of CW facilities for domestic wastewater treatment.

  1. Design Processes and Constructive Ergonomics

    DEFF Research Database (Denmark)

    Broberg, Ole

    2015-01-01

    This paper discusses some central issues in the concept of constructive ergonomics. It does so by reflecting on experiences from ergonomics intervention projects carried out in Denmark. Constructive ergonomics has a huge potential as a new way to go for ergonomics research and practice. However, ...

  2. Maintenance methods

    International Nuclear Information System (INIS)

    Sanchis, H.; Aucher, P.

    1990-01-01

    The maintenance method applied at the Hague is summarized. The method was developed in order to solve problems relating to: the different specialist fields, the need for homogeneity in the maintenance work, the equipment diversity, the increase of the materials used at the Hague's new facilities. The aim of the method is to create a knowhow formalism, to facilitate maintenance, to ensure the running of the operations and to improve the estimation of the maintenance cost. One of the method's difficulties is the demonstration of the profitability of the maintenance operations [fr

  3. Maintenance and repair of LMFBR steam generators

    International Nuclear Information System (INIS)

    Verriere, P.; Alanche, J.; Minguet, J.L.

    1984-06-01

    After some general remarks on the French fast neutron system, this paper presents the state of the program for the construction of fast reactor in France. Then, the general design of Super Phenix 1 steam generator components is outlined and, the in-service monitoring systems and protective devices with which they are equiped are briefly described. The methods used, in the event of leakage, for leak location, steam generator inspection, steam generator repair and putting the affected loop back into service, are discussed. There are two main lines of research, relating respectively to the means of water leak detection in sodium and the inspection arrangements that will be used either periodically, or following a sodium-water reaction. Finally, after a brief description of the steam generator, this paper describes the four incidents (leaks) that occurred on the Phenix steam generator in the course of 1982 and 1983, and the subsequent repair operations

  4. Risk-based maintenance-Techniques and applications

    International Nuclear Information System (INIS)

    Arunraj, N.S.; Maiti, J.

    2007-01-01

    Plant and equipment, however well designed, will not remain safe or reliable if it is not maintained. The general objective of the maintenance process is to make use of the knowledge of failures and accidents to achieve the possible safety with the lowest possible cost. The concept of risk-based maintenance was developed to inspect the high-risk components usually with greater frequency and thoroughness and to maintain in a greater manner, to achieve tolerable risk criteria. Risk-based maintenance methodology provides a tool for maintenance planning and decision making to reduce the probability of failure of equipment and the consequences of failure. In this paper, the risk analysis and risk-based maintenance methodologies were identified and classified into suitable classes. The factors affecting the quality of risk analysis were identified and analyzed. The applications, input data and output data were studied to understand their functioning and efficiency. The review showed that there is no unique way to perform risk analysis and risk-based maintenance. The use of suitable techniques and methodologies, careful investigation during the risk analysis phase, and its detailed and structured results are necessary to make proper risk-based maintenance decisions

  5. Operation and maintenance requirements of system design bases

    International Nuclear Information System (INIS)

    Banerjee, A.K.; Hanley, N.E.

    1989-01-01

    All system designs make assumptions about system operation testing, inspection, and maintenance. Existing industry codes and standards explicitly address design requirements of new systems, while issues related to system and plant reliability, life, design margins, effects of service conditions, operation, maintenance, etc., usually are implicit. However, system/component design documents of existing power plants often address the code requirements without considering the operation, maintenance, inspection, and testing (OMIT) requirements. The nuclear industry is expending major efforts at most nuclear power plants to reassemble and/or reconstitute system design bases. Stone ampersand Webster Engineering Corporation (SWEC) recently addressed the OMIT requirements of system/component design as an integral part of a utility's preventive maintenance program. For each component, SWEC reviewed vendor recommendations, NPRDS data/industry experience, the existing maintenance program, component service conditions, and actual plant experience. A maintenance program that considers component service conditions and plant experience ensures a connection between maintenance and design basis. Root cause analysis of failure and engineering evaluation of service condition are part of the program. System/component OMIT requirements also are compared against system design, service condition, degradation mechanism, etc., through system/component life-cycle evaluation

  6. BALTICA IV. Plant maintenance for managing life and performance

    Energy Technology Data Exchange (ETDEWEB)

    Hietanen, S.; Auerkari, P. [eds.] [VTT Manufacturing Technology, Espoo (Finland). Operational Reliability

    1998-12-31

    BALTICA IV International Conference on Plant Maintenance Managing Life and performance held on September 7-9, 1998 on board M/S Silja Symphony on its cruise between Helsinki-Stockholm and at Aavaranta in Kirkkonummi. The BALTICA IV conference provides a forum for the transfer of technology from applied research to practice. This is one of the two volumes of the proceedings of the BALTICA IV International Conference on Plant Maintenance Managing Life and Performance. The BALTICA IV conference focuses on new technology, recent experience and applications of condition and life management, and on improvements in maintenance strategies for safe and economical operation of power plants. (orig.)

  7. BALTICA IV. Plant maintenance for managing life and performance

    Energy Technology Data Exchange (ETDEWEB)

    Hietanen, S; Auerkari, P [eds.; VTT Manufacturing Technology, Espoo (Finland). Operational Reliability

    1999-12-31

    BALTICA IV International Conference on Plant Maintenance Managing Life and performance held on September 7-9, 1998 on board M/S Silja Symphony on its cruise between Helsinki-Stockholm and at Aavaranta in Kirkkonummi. The BALTICA IV conference provides a forum for the transfer of technology from applied research to practice. This is one of the two volumes of the proceedings of the BALTICA IV International Conference on Plant Maintenance Managing Life and Performance. The BALTICA IV conference focuses on new technology, recent experience and applications of condition and life management, and on improvements in maintenance strategies for safe and economical operation of power plants. (orig.)

  8. Integrated preventive maintenance and production decisions for imperfect processes

    International Nuclear Information System (INIS)

    Nourelfath, Mustapha; Nahas, Nabil; Ben-Daya, Mohamed

    2016-01-01

    This paper integrates production, maintenance, and quality for an imperfect process in a multi-period multi-product capacitated lot-sizing context. The production system is modeled as an imperfect machine, whose the status is considered to be either in-control or out-of-control. When the machine is out of control, it produces a fraction of nonconforming items. During each period, this machine is inspected and imperfect preventive maintenance activities are simultaneously performed to reduce its age, proportional to the preventive maintenance level. The objective is to minimize the total cost, while satisfying the demand for all products. Our optimization model allows for a joint selection of the optimal values of production plan, and the maintenance policy, while taking into account quality related costs. A solution algorithm is developed and illustrative numerical examples are presented. It is found that the increase in PM level leads to reductions in quality control costs. Furthermore, if the cost of performing PM is high to the point where it is not compensated for by reductions in the quality related costs, then performing PM is not justifiable. Finally, using non-periodic preventive maintenance with the possibility of different preventive maintenance levels may result in an improvement of the total cost. - Highlights: • We integrate production, maintenance, and quality. • We evaluate all the expected costs. • Our model allows for a joint selection of the optimal values. • A solution algorithm is developed. • Increasing PM level will decrease quality control costs.

  9. design and construction of design and construction of pilot scale

    African Journals Online (AJOL)

    eobe

    construction of the extractor, evaporator, condensate receiver and the the extractor, evaporator ... The concept of overall heat transfer coefficient was adopted for calculating the heat ..... Evaporator. Residence time for evaporation = 14070.25s.

  10. Equipment and special tool design for remote maintenance

    International Nuclear Information System (INIS)

    Northey, L.M.; Thomson, J.D.

    1985-01-01

    Maintenance tasks performed in locations with hostile environments and/or limited space accesses often require equipment that is operated remotely. This paper discusses considerations that should be addressed in the design of remote maintenance equipment. Some of the topics include proper material selection, interface identifications, operational feedback devices and cost limitations. These considerations add ''human engineering'' to the equipment design to assure protection of the tool and the operating personnel. Examples of remote maintenance and inspection systems that were developed by the Westinghouse Hanford Company and that utilize many of these design considerations are included

  11. Optimisation of maintenance and inspection work in nuclear power plants

    International Nuclear Information System (INIS)

    Meyer, V.

    1996-01-01

    The long-term planning and comparative evaluation of inspection and maintenance intervals as well as results of electric components and machinery have to be intensified in order to shorten maintenance shut-down periods, e.g. of the Grohnde reactor station, thus improving the availability of the plant and the specific electricity generation cost. Economically efficient maintenance has to be based on an efficient organisational structure. Outsourcing of less plant-specific work and tasks offers the possibility for in-house personnel to concentrate on their core competences. All the measures discussed contribute to improving the economic efficiency of the nuclear power plants. (orig./DG) [de

  12. Tools and Techniques for Evaluating the Effects of Maintenance Resource Management (MRM) in Air Safety

    Science.gov (United States)

    Taylor, James C.

    2002-01-01

    This research project was designed as part of a larger effort to help Human Factors (HF) implementers, and others in the aviation maintenance community, understand, evaluate, and validate the impact of Maintenance Resource Management (MRM) training programs, and other MRM interventions; on participant attitudes, opinions, behaviors, and ultimately on enhanced safety performance. It includes research and development of evaluation methodology as well as examination of psychological constructs and correlates of maintainer performance. In particular, during 2001, three issues were addressed. First a prototype process for measuring performance was developed and used. Second an automated calculator was developed to aid the HF implementer user in analyzing and evaluating local survey data. These results include being automatically compared with the experience from all MRM programs studied since 1991. Third the core survey (the Maintenance Resource Management Technical Operations Questionnaire, or 'MRM/TOQ') was further developed and tested to include topics of added relevance to the industry.

  13. Oak Ridge Research Reactor shutdown maintenance and surveillance

    International Nuclear Information System (INIS)

    Coleman, G.H.; Laughlin, D.L.

    1990-10-01

    The Department of Energy ordered the Oak Ridge Research Center Reactor to be placed in permanent shutdown on July 14, 1987. Maintenance activities, both mechanical and instrument, were essentially routine in nature. The performance of the instrumentation for the facility was satisfactory, and maintenance required is provided. The performance of the process system was satisfactory, and maintenance required is indicated. The results of efficiency tests of the various gaseous-waste filters have been summarized and preparations for transfer of the facility to the remedial action program is also indicated

  14. Manual on maintenance of systems and components important to safety

    International Nuclear Information System (INIS)

    1986-01-01

    The Manual should serve as guidance at the plant management level for the maintenance of systems and components important to safety. It includes a detailed description of management systems, administrative controls and procedures. The Annexes contain examples of documents and practices adopted by Operating Organizations of some Member States. It is not the intention of this Manual to address the technical problem of how to maintain a particular component but rather to cover the programmatic aspects of maintenance. It also contains some aspects of surveillance and verification activities. The Manual makes only general statements about radiation protection provisions in connection with maintenance; detailed guidance can be found in other IAEA documents

  15. Dynamic modeling and simulation of power transformer maintenance costs

    Directory of Open Access Journals (Sweden)

    Ristić Olga

    2016-01-01

    Full Text Available The paper presents the dynamic model of maintenance costs of the power transformer functional components. Reliability is modeled combining the exponential and Weibull's distribution. The simulation was performed with the aim of corrective maintenance and installation of the continuous monitoring system of the most critical components. Simulation Dynamic System (SDS method and VENSIM PLE software was used to simulate the cost. In this way, significant savings in maintenance costs will be achieved with a small initial investment. [Projekat Ministarstva nauke Republike Srbije, br. III 41025 i br. OI 171007

  16. Application and issues of online maintenance for equipment of nuclear power plants

    International Nuclear Information System (INIS)

    Higasa, Hisakazu

    2011-01-01

    The maintenance systems for long-term safety and repair costs reduction of equipment of nuclear power plants are stated. Planned maintenance contained the breakdown maintenance (BM) and the preventive maintenance, which consists of the time based maintenance (MBM) and the condition based maintenance (CBM). Explained are the characteristics of equipments, maintenance methods, maintenance solutions and the self-evaluation maintenance power, damage mechanism and solutions, and monitoring tools and application. Stated are the maintenance system and application of monitoring technology, periodical maintenance, application of diagnosis, vibration monitoring techniques, decision of vibration monitoring, and application of monitoring techniques for improvement of maintenance. Illustrated are realization of planned maintenance by reorganization of maintenance, a trend of maintenance of equipments, table of classified maintenance systems, change of maintenance program, maintenance data and investigation of damage mechanism, examples of self-evaluation maintenance power, examples of analysis of damage of parts of equipments, evaluation of rotating machines by vibration method, examples of results of diagnosis of bearing of rotating machines, online maintenance system of Asahi Kasei Engineering Corporation, degradation pattern of pomp, estimation of lifetime by total vibration and vibration on acceleration, and improvement of equipments. (S.Y.)

  17. Innovative water service operation and maintenance: exploration of franchising partnerships

    CSIR Research Space (South Africa)

    Wall, K

    2008-10-01

    Full Text Available WRC and CSIR research has found that franchising partnerships could alleviate and address many challenges in the operation and maintenance of water services infrastructure. Franchising brings appropriate training to those on-site, and also offers...

  18. Functional Problems and Maintenance Operations of Hydraulic Turbines

    Directory of Open Access Journals (Sweden)

    Liliana Topliceanu

    2016-02-01

    Full Text Available The exploitation in good conditions of the hydroelectric power plant imposes a rigorous maintenance of equipment and operating facilities, primarily of the turbine. The efficiency of the turbine is strongly affected by any defects which could occur during the operation. The paper makes a synthesis of the most frequent failures which have occurred during the functioning of Kaplan turbines plant and the required maintenance plan that has to be adopted. The maintenance rules for the optimal working of these turbines are also emphasized.

  19. Assessment and improvement of urban streets maintenance: Case study Kragujevac

    Directory of Open Access Journals (Sweden)

    Jokanović Igor

    2017-01-01

    Full Text Available City of Kragujevac struggles with providing road maintenance services due to limited funds and low capacity within the existing Public Utility Companies. As a solution to problems with traditional methods of contracting, many road authorities have moved to contracting road maintenance works to the private sector based on performance measures. The paper presents the outcomes of the study conducted for the purpose of improving current practice and condition of urban network within the City of Kragujevac through the application of performance-based maintenance contracting.

  20. Bacteria with multipartite genome system, its maintenance and cell ...

    Indian Academy of Sciences (India)

    kullu

    bacterial genome maintenance and also contribute to higher stress tolerance and .... the molecular basis of genome partitioning would be different. ..... has resulted in the loss of infectivity and therefore, the use of this approach in the.

  1. Gas characterization system operation, maintenance, and calibration plan

    International Nuclear Information System (INIS)

    Tate, D.D.

    1996-01-01

    This document details the responsibilities and requirements for operation, maintenance, and calibration of the Gas Characterization Systems (GCS) analytical instrumentation. It further, defines the division of responsibility between the Characterization Monitoring Development organization and Tank Farms Operations

  2. Multi-canister overpack operations and maintenance manual

    International Nuclear Information System (INIS)

    PIERCE, S.R.

    1999-01-01

    This manual provides general operating and maintenance instructions for the Multi-Canister Overpack. Procedure outlines included are conceptual in nature and will be modified, expanded, and refined during preparation of detailed operating procedures

  3. Argentina: Atucha 2 NPP. Preservation and maintenance. Annex 1

    International Nuclear Information System (INIS)

    Ruben, R.

    1999-01-01

    This annex deals with preservation and maintenance. It describes managerial actions and physical measures taken to preserve the equipment and facilities at site. Also described are the problems encountered, most of which appear to originate from management. (author)

  4. Assessment of the Automotive Inspection, Maintenance, and Repair Industry

    Science.gov (United States)

    1981-02-01

    The study describes the current status of the Inspection/Maintenance/Repair Industry in the U.S., the impact of technological changes and legislation, and related approaches used in Germany and Sweden. Based on these findings suggestions are provided...

  5. Methods and tools in development in the field of maintenance; Methodes et outils pour la maintenance en cours de developpement

    Energy Technology Data Exchange (ETDEWEB)

    Le Reverend, D.; Tortolano, M. [Electricite de France (EDF/RD), 78 - Chatou (France); Leniaud, F. [Electricite de France (EDF), Div. Production Nuleaire, 93 - Saint-Denis (France)

    2004-07-01

    This article is dedicated to the maintenance strategy followed by EDF for its nuclear power plants. This strategy is based on the American method RCM (reliability centered method) that has been extended to passive components such as structures and relies on 4 axis. The first axis can be defined as the optimization of maintenance with regard to safety, outage and costs. The aim is to set the border between preventive maintenance and remedial maintenance. The second axis is the condition based maintenance that is the maintenance action that is triggered by the real state of the equipment. This type of maintenance implies the search for reliable and accurate diagnostics. The third axis is the design of simulation and planning tools required for the management of the moving of tools, machinery and spare-parts on a maintenance work site. The fourth axis is the design of tools able to repair some important equipment, this way may be a valid alternative to the replacement of equipment in terms of cost and outage time. (A.C.)

  6. Computerization of operation and maintenance for nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-07-01

    This report provides a resource for computerization of activities in plant operation and maintenance. Experience gained from design and implementation of various computer systems around the world is described. The material may be useful as a guide to modification and upgrading of existing plants as well as design and engineering of new plants. It should be particularly of interest to managers and engineers who are engaged in planning, bidding, specifying or designing computer systems for operation and maintenance applications. Refs, figs and tabs.

  7. Computerization of operation and maintenance for nuclear power plants

    International Nuclear Information System (INIS)

    1995-07-01

    This report provides a resource for computerization of activities in plant operation and maintenance. Experience gained from design and implementation of various computer systems around the world is described. The material may be useful as a guide to modification and upgrading of existing plants as well as design and engineering of new plants. It should be particularly of interest to managers and engineers who are engaged in planning, bidding, specifying or designing computer systems for operation and maintenance applications. Refs, figs and tabs

  8. Risk-based Operation and Maintenance for Offshore Wind Turbines

    DEFF Research Database (Denmark)

    Sørensen, John Dalsgaard; Nielsen, Jannie Jessen

    2011-01-01

    For offshore wind turbines, costs to Operation and Maintenance (OM) are substantial, and can be expected to increase when wind farms are placed at deeper water depths and in more harsh environments. Traditional strategies for OM include corrective and preventive (scheduled and condition...... statistics and costs of the different operations. The different OM strategies are described and compared in an illustrative example with focus on which types of information that are needed. Special focus is on comparison between risk-based maintenance strategies and the conventional maintenance planning...... and are often the driving mechanisms for failures / faults that need maintenance. Observations of the degree of damage can increase the reliability of predictions and decrease the costs of OM if integrated in a risk-based framework theoretically based on pre-posterior Bayesian decision theory. The mathematical...

  9. Practical application of reliability engineering in detailed design and maintenance

    International Nuclear Information System (INIS)

    Barden, S.E.

    1975-01-01

    Modern plant systems are closely coupled combinations of sophisticated and expensive equipment, some important parts of which may be in the development stage (high technology sector), and simpler, crude but not necessarily cheap equipment (low technology sector). Manpower resources involved with such plant systems can also be placed in high and low technology categories (i.e. specialist design and construction staff, and production staff, respectively). Neither can operate effectively without the other, and both are equally important. A sophisticated on-line computer controlling plant or analysing fault symptoms is useless, if not unsafe, if the peripheral sensing and control equipment on plant providing input data is poorly designed and inaccurate, and/or unreliable because of inadequate maintenance. Similarly, the designer can be misled and misinformed, and subsequent design evolution can be wrongly directed, if production recors do not accurately reflect what is actually happening on the plant. The application of Reliability Technology can be counter productive if it demands more effort in the collection of data that it save in facilitating quick, correct engineering decisions, and more accurate assessments of resource requirements. Reliability Engineering techniques must be simplified to made their use widely adopted in the important low technology sector, and established in all financial and contractural procedures associated with design specification and production management. This paper develops this theme with practical examples. (author)

  10. Technology Trends and Opportunities for Construction Industry and Lifecycle Management

    OpenAIRE

    Janson, Vidar

    2017-01-01

    Master's thesis in for Offshore Technology: Industrial Asset Management The purpose of the report is to highlight methods that can make it easier for the construction industry and industry in general to benefit from new technology. The report is intended as a reference to technological solutions that along with some techniques, can streamline workflow for multiple tasks in planning, design, and operation and maintenance management. The problems focused on is how to: • Simplify the procu...

  11. Research Trends on Benefits of Implementing Constructability, Operability, and Maintainability

    Directory of Open Access Journals (Sweden)

    Kordestani Ghaleenoe, N.

    2017-07-01

    Full Text Available Despite allocating huge budgets to civil engineering projects, detailed planning, and employing human resources, project managers still face time, cost, and quality constraints. Most of these challenges are due to a lack of integration of different project phases and the limitations of the presence of construction and maintenance contractors in the initial stages of the project. Considering the benefits of applying constructability, operability, and maintainability (COM concepts, many problems caused by lack of coordination, or duplications and weakness in management, and also time and extra costs due to lack of presence of construction and maintenance contractors in the early stages of the project are resolvable. In this regard, various studies have investigated the benefits of applying these concepts; however, there has been no comprehensive analysis of the benefits of COM. As a result of focus on the benefits of implementation of these concepts and evaluating the effect of each of these strategies and benefits, from different perspectives during various time periods, managers can increase project efficiency and productivity, and improve their performance, through using concepts and strategies of their implementation. This research aims to evaluate the trend of studies on the benefits of implementing constructability, operability, and maintainability in the construction industry. For that, the in-depth literature review method is applied. For qualitative analysis of the obtained information, descriptive analysis has been used. Then, the data was coded, and classified using Excel Software for quantitative data analysis. Finally, the charts presented were evaluated according to the classified fields of study. The necessity of performing such a study is significant because of the fact that a large share of a project’s problems, such as lack of plans’ integration and weakness of administrative system, and increasing time and cost, are due to

  12. Design Processes and Constructive Ergonomics

    OpenAIRE

    Broberg, Ole

    2015-01-01

    This paper discusses some central issues in the concept of constructive ergonomics. It does so by reflecting on experiences from ergonomics intervention projects carried out in Denmark. Constructive ergonomics has a huge potential as a new way to go for ergonomics research and practice. However, many challenges are to be overcome. They relate among others to education and training of ergonomist, and the cultural and institutional setting of ergonomics in specific countries.

  13. Housing and construction chapter 11

    Science.gov (United States)

    Delton Alderman

    2015-01-01

    Highlights •The new residential and renovation construction markets in the US and the Eurozone were valued at $338.7 billion (305.5 billion euros) and $673.3 billion dollars (614.4 billion euros), respectively, in 2014. •In Europe, 55% of the value of the new residential and renovation construction markets in 2014 was in...

  14. Constructive memory: past and future.

    Science.gov (United States)

    Schacter, Daniel L

    2012-03-01

    Human memory is not a literal reproduction of the past, but instead relies on constructive processes that are sometimes prone to error and distortion. Understanding of constructive memory has accelerated during recent years as a result of research that has linked together its cognitive and neural bases. This article focuses on three aspects of constructive memory that have been the target of recent research: (i) the idea that certain kinds of memory distortions reflect the operation of adaptive cognitive processes that contribute to the efficient functioning of memory; (ii) the role of a constructive memory system in imagining or simulating possible future events; and (iii) differences between true and false memories that have been revealed by functional neuroimaging techniques. The article delineates the theoretical implications of relevant research, and also considers some clinical and applied implications.

  15. Surface Moisture Measurement System Operation and Maintenance Manual

    International Nuclear Information System (INIS)

    Ritter, G.A.; Pearce, K.L.; Stokes, T.L.

    1995-12-01

    This operations and maintenance manual addresses deployment, equipment and field hazards, operating instructions, calibration verification, removal, maintenance, and other pertinent information necessary to safely operate and store the Surface Moisture Measurement System (SMMS) and Liquid Observation Well Moisture Measurement System (LOWMMS). These systems were developed primarily in support of Tank Waste Remediation System (TWRS) Safety Programs for moisture measurement in organic and ferrocyanide watch list tanks

  16. Regulatory requirements related to maintenance and compliance monitoring

    International Nuclear Information System (INIS)

    Ling, A.K.H.

    1997-01-01

    The maintenance related regulatory requirements are identified in the regulatory documents and licence conditions. Licensee complies with these requirements by operating the nuclear power plant within the safe operating envelope as given in the operating policies and principles and do maintenance according to approved procedures and/or work plans. Safety systems are regularly tested. AECB project officers review and check to ensure that the licensee operates the nuclear power plant in accordance with the regulatory requirements and licence conditions. (author). 6 tabs

  17. VNIIEF NMPC and A Maintenance Management Conference video surveillance

    International Nuclear Information System (INIS)

    Malone, T.

    1997-08-01

    This paper is part of ongoing Nuclear Materials Protection, Control and Accountability (NMPC and A) work with the All Russian Scientific Research Institute of Experimental Physics (VNIIEF), Sarov, Russia. The material presented in the paper is to provide guidance for the preparation of maintenance management for NMPC and A video assessment and surveillance subsystems being installed at VNIIEF. This paper discusses maintenance philosophies, performance testing, equipment inspection/setup, and record keeping for a video assessment and surveillance subsystem

  18. Knowledge representation for integrated plant operation and maintenance

    DEFF Research Database (Denmark)

    Lind, Morten

    2010-01-01

    Integrated operation and maintenance of process plants has many advantages. One advantage is the improved economy obtained by reducing the number of plant shutdowns. Another is to increase reliability of operation by monitoring of risk levels during on-line maintenance. Integrated plant operation...... and maintenance require knowledge bases which can capture the interactions between the two plant activities. As an example, taking out a component or a subsystem for maintenance during operation will require a knowledge base representing the interactions between plant structure, functions, operating states...... and goals and incorporate knowledge about redundancy and reliability data. Multilevel Flow Modeling can be used build knowledge bases representing plant goals and functions and has been applied for fault diagnosis and supervisory control but currently it does not take into account structural information...

  19. Franchising partnerships for roads engineering infrastructure operation and maintenance

    CSIR Research Space (South Africa)

    Wall, K

    2008-07-01

    Full Text Available This is a presentation delivered at the 27th SATC (Southern African Transport Conference) conference 2008, focusing on franchising principles and applying these principles to water services infrastructure, operation and maintenance...

  20. Optimal Maintenance Crew Composition and Enhancement of Crew Productivity

    Science.gov (United States)

    2008-08-01

    The South Carolina Department of Transportation dedicates a large portion of both : its budget and other resources to the maintenance of the States transportation : infrastructure. In order to maximize the efficiency and productivity of the State...

  1. Monitoring and maintenance of breakwaters which protect port entrances

    CSIR Research Space (South Africa)

    Tulsi, K

    2009-07-01

    Full Text Available breakwaters which have dolos armouring. These require regular monitoring and maintenance, especially in the light of predicted sea level rise and extreme sea conditions caused by global warming. TNPA, the local Port Authority, has commissioned the CSIR...

  2. Measurement and control system for ITER remote maintenance equipment

    Energy Technology Data Exchange (ETDEWEB)

    Oka, Kiyoshi; Kakudate, Satoshi; Takeda, Nobukazu; Takiguchi, Yuji; Akou, Kentaro [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-04-01

    ITER in-vessel components such as blankets and divertors are categorized as scheduled maintenance components because they are subjected to severe plasma heat and particle loads. Blanket maintenance requires remote handling equipment and tools able to handle Heavy payloads of about 4 tons within a 2 mm precision tolerance. Divertor maintenance requires remote replacement of 60 cassettes with a dead weight of about 25 tons each. In the ITER R and D program, full-scale remote handling equipment for blanket and divertor maintenance has been designed and assembled for demonstration tests. This paper reviews the measurement and control system developed for full-scale remote handling equipment, the Japan Home Team contribution. (author)

  3. Measurement and control system for ITER remote maintenance equipment

    International Nuclear Information System (INIS)

    Oka, Kiyoshi; Kakudate, Satoshi; Takeda, Nobukazu; Takiguchi, Yuji; Akou, Kentaro

    1998-01-01

    ITER in-vessel components such as blankets and divertors are categorized as scheduled maintenance components because they are subjected to severe plasma heat and particle loads. Blanket maintenance requires remote handling equipment and tools able to handle Heavy payloads of about 4 tons within a 2 mm precision tolerance. Divertor maintenance requires remote replacement of 60 cassettes with a dead weight of about 25 tons each. In the ITER R and D program, full-scale remote handling equipment for blanket and divertor maintenance has been designed and assembled for demonstration tests. This paper reviews the measurement and control system developed for full-scale remote handling equipment, the Japan Home Team contribution. (author)

  4. Remote Operation and Maintenance Demonstration Facility at ORNL

    International Nuclear Information System (INIS)

    Harvey, H.W.; Floyd, S.D; Kuban, D.P.; Singletary, B.H.; Stradley, J.G.

    1978-01-01

    The Remote Operation and Maintenance Facility is a versatile facility arranged to mock-up various hot-cell configurations. Modular units of simulated shielding and viewing windows were built to provide flexibility in arrangement. The facility is fully equipped with hoists, manipulators, television, and the other basic equipment and services necessary to provide capability for both remote operation and maintenance of several selected functional process equipment groups. 6 figures

  5. Remote operation and maintenance demonstration facility at ORNL

    International Nuclear Information System (INIS)

    Harvey, H.W.; Floyd, S.D.; Kuban, D.P.; Singletary, B.H.; Stradley, J.G.

    1978-01-01

    The Remote Operation and Maintenance Facility is a versatile facility arranged to mock up various hot cell configurations. Modular units of simulated shielding and viewing windows were built to provide flexibility in arrangement. The facility is fully equipped with hoists, manipulators, television, and other basic equipment and services necessary to provide capability for both remote operation and maintenance of several selected functional process equipment groups

  6. Effective utilization of maintenance staff in design and implementation of major project work

    International Nuclear Information System (INIS)

    Wyman, D.; Dingle, J.; Brown, R.

    1995-01-01

    The reorganization of Pickering Nuclear Division some 2 years ago resulted in the formation of the Projects and Modifications department. This department takes an integrated approach to manage all aspects of large projects at Pickering. The integration of Design, Drafting, Procurement, Construction and Operations functions into project teams represents a fundamental change to project management at Pickering. The development of integrated teams has great potential for reducing both the time and cost associated with project implementation, while at the same time improving the quality, and maintainability of the commissioned in service project. The Pickering Rehab organization 1989-1993, established to perform the rehab / retube of Units 3 and 4 had proven that a team environment will produce effective results. The outcome was astounding, critical categories such as Safety, Quality of Work, and Timeliness, had proven the team's effectiveness. The integration of operations maintenance staff into the project work activities is still evolving, and has probably required the most adaptation to change for both the former Construction and Operations organizations. Maximizing the utilization of the maintenance staff in the design and implementation of major project work will prove to be a key to a long term operating success of these projects. This paper will focus in on the effective usage of Maintenance staff in the design and implementation phases of major project work at Pickering, and on the benefits realized using this approach. It will be divided into 5 sections as indicated. 1. Past Project Shortfalls. 2. Benefits of the inclusion of Maintenance staff in the Calandria Vault Rehab Project. 3. Maintenance involvement in the Pickering 'A' Shutdown System Enhancement (SDSE) Project. 4. Challenges resulting from the inclusion of Maintenance staff project teams. 5. Summary. (author)

  7. Optimizing stormwater treatment practices a handbook of assessment and maintenance

    CERN Document Server

    Erickson, Andrew J; Gulliver, John S

    2013-01-01

    Optimizing Stormwater Treatment Practices: A Handbook of Assessment and Maintenance provides the information necessary for developing and operating an effective maintenance program for stormwater treatment. The book offers instructions on how to measure the level of performance of stormwater treatment practices directly and bases proposed maintenance schedules on actual performance and historical maintenance efforts and costs. The inspection methods, which are proven in the field and have been implemented successfully, are necessary as regulatory agencies are demanding evaluations of the performance of stormwater treatment practices. The authors have developed a three-tiered approach that offers readers a standard protocol for how to determine the effectiveness of stormwater treatment practices currently in place. This book also: Provides a standard protocol for how to determine the effectiveness of stormwater treatment practices Assists readers with identifying which assessment techniques to use for stormwa...

  8. Virtual reality technology in nuclear power plant operation and maintenance

    International Nuclear Information System (INIS)

    Chen Sen

    2005-01-01

    In this paper a generic virtual reality comprehensive system focusing on the operation and maintenance in Nuclear Power Plant (NPP) is proposed. Under this layout, some key topics and means of the system are discussed. As example 'Virtual Nuclear Island' comprehensive system and its typical applications in NPP are set up. In the end, it prospects the applications of virtual reality technology in NPP operation, training and maintenance. (author)

  9. Equipment reliability process improvement and preventive maintenance optimization

    International Nuclear Information System (INIS)

    Darragi, M.; Georges, A.; Vaillancourt, R.; Komljenovic, D.; Croteau, M.

    2004-01-01

    The Gentilly-2 Nuclear Power Plant wants to optimize its preventive maintenance program through an Integrated Equipment Reliability Process. All equipment reliability related activities should be reviewed and optimized in a systematic approach especially for aging plants such as G2. This new approach has to be founded on best practices methods with the purpose of the rationalization of the preventive maintenance program and the performance monitoring of on-site systems, structures and components (SSC). A rational preventive maintenance strategy is based on optimized task scopes and frequencies depending on their applicability, critical effects on system safety and plant availability as well as cost-effectiveness. Preventive maintenance strategy efficiency is systematically monitored through degradation indicators. (author)

  10. Design of Monju steam generator - with regard to maintenance and repair

    International Nuclear Information System (INIS)

    Takahashi, T.; Yamagishi, Y.; Mukaibo, R.

    2002-01-01

    The steam generator design of 'Monju' started in 1968 and since then, extensive research and design work has been done. 'Monju' steam generator consists of one evaporator and one superheater to each of the three independent cooling systems. Ultrasonic and eddy current tubing inspection devices have been developed for maintenance. And for failed tubes, welding or explosive plugging is applied. Following the completed safety review and the coming design and construction licensing, 'Monju' is expected to reach criticality in fiscal year 1990. (author)

  11. Maintenance and operations cost model for DSN subsystems

    Science.gov (United States)

    Burt, R. W.; Lesh, J. R.

    1977-01-01

    A procedure is described which partitions the recurring costs of the Deep Space Network (DSN) over the individual DSN subsystems. The procedure results in a table showing the maintenance, operations, sustaining engineering and supportive costs for each subsystems.

  12. Risk mitigation strategies for operations and maintenance activities.

    Science.gov (United States)

    2012-04-01

    The objective of this research was to investigate the application of integrated risk modeling to operations and maintenance activities, specifically moving operations, such as pavement testing, pavement marking, painting, snow removal, shoulder work,...

  13. The Role of Head Teacher in Improvisation and Maintenance of ...

    African Journals Online (AJOL)

    gold

    2012-07-26

    Jul 26, 2012 ... aid effective teaching and learning in the school system. In his own view ... Enrolment explosion leading to excessive pressure on existing school facilities. .... Financing maintenance cost internally: The head teacher must be.

  14. Current problems and perspectives of maintenance at NPPs

    International Nuclear Information System (INIS)

    Hevia Ruperez, F.; Garcia, R.; Manso Osuna, R.

    1994-01-01

    The highest levels of availability and efficiency for a plant in service, together with other, not less important, objectives such as improving plant safety, reliability and operability cannot be achieved if there is no adequate maintenance of plant systems and equipment. The combination of the large number of such system and equipment, diversity of their design, complexity of their interrelations and operation and maintenance requirements, make it difficult at times to obtain the right degree of technical and economic effectiveness. From the regulatory point of view, mention must be made of the Maintenance Rule (10/CFR/50.65) entitled ''Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants'' published on 10 July 1991 by the NRC. This Rule will come into force in the USA in 1996. This paper presents, on the one hand, a general view of the current status of NPP maintenance, enumerating the problems, difficulties and complications affecting its workability and, on the other, outlines new trends and methodologies (RAM, RCM, PRA, Remaining Lifetime Management, etc), for analysing and evaluating maintenance programmes, improving and optimizing them, and at the same time enhancing plant availability and lifetime. (Author)

  15. Maintenance and test strategies to optimize NPP equipment performance

    International Nuclear Information System (INIS)

    Mayer, S.; Tomic, B.

    2000-01-01

    This paper proposes an approach to maintenance optimization of nuclear power plant components, which can help to increase both safety and availability. In order to evaluate the benefits of preventive maintenance on a quantitative basis, a software code has been developed for component performance and reliability simulation of safety related nuclear power plant equipment. A three state Markov model will be introduced, considering a degraded state in addition to an operational state and a failed state. (author)

  16. Ventilation: Exploitation and maintenance. Ten years of experience

    International Nuclear Information System (INIS)

    Letertre, J.

    1990-01-01

    The evolution and the maintenance operations performed during the last ten years on the ventilation-air-conditioning system at the Hague plant are presented. The modifications operated in the ventilation-air-conditioning system were carried out in order to answer the safety requirements evolution due to the increase of the plant productivity. The choice and the results of the maintenance policies, defined as a function of the safety, quality and cost requirements, are presented [fr

  17. NPP component maintenance and life management in Russia

    International Nuclear Information System (INIS)

    Tutnov, I.; Lyssakov, V.

    2002-01-01

    This report represents the conceptual strategies (ideas) on life management programs for nuclear power plants. Use of the optimum programs for NPP's NDE, maintenance service, operation and service life can provide the best economic benefit for the utilities. The paper presents general approaches to life management, maintenance service, and risks of operating and service life of NPPs in Russia. The report offers some optimized ways for the solution of these important tasks

  18. 78 FR 26383 - Environmental Assessment of the Proposed Increase in Operation, Maintenance and Replacement...

    Science.gov (United States)

    2013-05-06

    ... Proposed Increase in Operation, Maintenance and Replacement Activities Associated With the Wasatch County... of potential impacts associated with a proposed change in Operation, Maintenance and Replacement..., Maintenance, and Replacement Proposed Action includes: stabilizing canal banks; lining, piping, or enclosing...

  19. Nuclear instrument maintenance and technical training in Nuclear Energy Unit

    International Nuclear Information System (INIS)

    Mohamad Nasir Abdul Wahid

    1987-01-01

    Instrument maintenance service is a necessity in a Nuclear Research Institute, such as the Nuclear Energy Unit (NEU) to ensure the smooth running of our research activities. However, realising that maintenance back-up service for either nuclear or other scientific equipment is a major problem in developing countries such as Malaysia, NEU has set up an Instrumentation and Control Department to assist in rectifying the maintenance problem. Beside supporting in house activities in NEU, the Instrumentation and Control Department (I and C) is also geared into providing services to other organisations in Malaysia. This paper will briefly outline the activities of NEU in nuclear instrument maintenance as well as in technical training. (author)

  20. Program strategies for maintenance management, organization and planning

    International Nuclear Information System (INIS)

    Czegeny, J.I.

    2003-01-01

    In this paper we look respectively at three specific examples showing program strategies for maintenance management, organization and planning. Starting with preventive maintenance optimization, we will look at one Bruce B Predefined task on the Reactor Regulating System to illustrate reduced maintenance requirement, a maintenance management strategy. Next discussed is the organizational strategy at Darlington to have an engineering program meet the jurisdictional requirements for maintaining certification for TSSA registered pressure vessels. The last look-see will show the earned value of the planning for the first Pickering A unit to be returned to service. Finally all the above is tied together in a compare and contrast of what works and what could be improved upon. (author)

  1. Fuel Rod Consolidation Project: Phase 2, Final report: Volume 5, Operations and maintenance manual

    International Nuclear Information System (INIS)

    1988-01-01

    The purpose of this manual is to describe the function, installation, operation and maintenance of the Fuel Rod Consolidation System. This Document is preliminary and must be updated to incorporate any modifications to the mechanical and electrical systems that are performed during construction. Any changes and specific references related to the software requirements will be provided as the software is developed in Phase III. Setpoints related to equipment positions as a function of resolver and position transducer readings will also be provided in Phase III. References such as vendor supplied Operating and Maintenance Manuals for vendor components and assemblies are not available until a receipt of a purchase order. These references will become an integral part of this manual during the construction phase

  2. Development of preventive maintenance technology and advanced service equipment for operating nuclear power plants

    International Nuclear Information System (INIS)

    Abe, Kazuhiro; Sumikawa, Masaharu; Hirakawa, Hiromasa; Arakawa, Tadao; Hasegawa, Kunio; Kato, Kanji.

    1990-01-01

    Hitachi Ltd. as a manufacturer of nuclear power plants has carried out the consistent general preventive maintenance activities from the planning of the plants and the design of maintainability in the construction phase to the planning and working of preventive maintenance in the operation and maintenance phase, and exerted efforts to heighten the capacity ratio and reliability of the plants. For the purpose, the steady activities of reliability improvement have been carried out throughout the whole company, and the rationalization of the planning and management of the preventive maintenance with a computer and the development of the robots to which Al is applied have been promoted. As the technology of upgrading the facilities, boron racks, the control rods having long life and so on were developed, and their practical use is advanced. Moreover for the future, the development of the diagnostic technology on material deterioration using superconductive quantum interference devices (SQUID) is in progress. The preventive maintenance activities in Hitachi Ltd., the technical development for the purpose and the upgrading of the plant facilities are reported. (K.I.)

  3. A production model and maintenance planning model for the process industry

    NARCIS (Netherlands)

    Ashayeri, J.; Teelen, A.; Selen, W.J.

    1995-01-01

    In this paper a model is developed to simultaneously plan preventive maintenance and production in a process industry environment, where maintenance planning is extremely important. The model schedules production jobs and preventive maintenance jobs, while minimizing costs associated with

  4. Maintenance metabolism and carbon fluxes in Bacillus species

    Directory of Open Access Journals (Sweden)

    Decasper Seraina

    2008-06-01

    Full Text Available Abstract Background Selection of an appropriate host organism is crucial for the economic success of biotechnological processes. A generally important selection criterion is a low maintenance energy metabolism to reduce non-productive consumption of substrate. We here investigated, whether various bacilli that are closely related to Bacillus subtilis are potential riboflavin production hosts with low maintenance metabolism. Results While B. subtilis exhibited indeed the highest maintenance energy coefficient, B. licheniformis and B. amyloliquefaciens exhibited only statistically insignificantly reduced maintenance metabolism. Both B. pumilus and B. subtilis (natto exhibited irregular growth patterns under glucose limitation such that the maintenance metabolism could not be determined. The sole exception with significantly reduced maintenance energy requirements was the B. licheniformis strain T380B. The frequently used spo0A mutation significantly increased the maintenance metabolism of B. subtilis. At the level of 13C-detected intracellular fluxes, all investigated bacilli exhibited a significant flux through the pentose phosphate pathway, a prerequisite for efficient riboflavin production. Different from all other species, B. subtilis featured high respiratory tricarboxylic acid cycle fluxes in batch and chemostat cultures. In particular under glucose-limited conditions, this led to significant excess formation of NADPH of B. subtilis, while anabolic consumption was rather balanced with catabolic NADPH formation in the other bacilli. Conclusion Despite its successful commercial production of riboflavin, B. subtilis does not seem to be the optimal cell factory from a bioenergetic point of view. The best choice of the investigated strains is the sporulation-deficient B. licheniformis T380B strain. Beside a low maintenance energy coefficient, this strain grows robustly under different conditions and exhibits only moderate acetate overflow, hence

  5. Constructions, pragmatics and modality

    Directory of Open Access Journals (Sweden)

    Antonio Fortin

    2013-05-01

    Full Text Available This paper rejects the commonplace view that the semantics of certain modal deverbal adjectives (MDAs, which have traditionally been assumed to be non-compositional, require complex lexical or syntactic encoding (cf. e.g. Riehemann 1994 and 1998, Booij 2007 and 2010a. Instead, it shows that productive MDA formation is semantically compositional, and that the prima facie idiosyncratic meanings are, in fact, conversational implicatures.

  6. Aging based maintenance and reinvestment scheduling of electric distribution

    Energy Technology Data Exchange (ETDEWEB)

    Korpijarvi, J.

    2012-07-01

    The maintenance of electric distribution network is a topical question for distribution system operators because of increasing significance of failure costs. In this dissertation the maintenance practices of the distribution system operators are analyzed and a theory for scheduling maintenance activities and reinvestment of distribution components is created. The scheduling is based on the deterioration of components and the increasing failure rates due to aging. The dynamic programming algorithm is used as a solving method to maintenance problem which is caused by the increasing failure rates of the network. The other impacts of network maintenance like environmental and regulation reasons are not included to the scope of this thesis. Further the tree trimming of the corridors and the major disturbance of the network are not included to the problem optimized in this thesis. For optimizing, four dynamic programming models are presented and the models are tested. Programming is made in VBA-language to the computer. For testing two different kinds of test networks are used. Because electric distribution system operators want to operate with bigger component groups, optimal timing for component groups is also analyzed. A maintenance software package is created to apply the presented theories in practice. An overview of the program is presented (orig.)

  7. Maintenance and Safety Practices of Escalator in Commercial Buildings

    Science.gov (United States)

    Afida Isnaini Janipha, Nurul; Nur Aina Syed Alwee, Sharifah; Ariff, Raihan Mohd; Ismail, Faridah

    2018-02-01

    The escalator is very crucial to transport a person from one place to another. Nevertheless, there are many cases recorded the accidents in relation to escalator. These may occur due to lack of maintenance which leads to systems breakdown, poor safety practices, wear and tear, users’ negligence and others. Thus, proper maintenance systems need to be improvised to prevent and reduce escalator accident in future. This research was aimed to determine the escalator maintenance activities and safety practices in a commercial building. Three case studies were selected within Selangor area. Semi-structured interviews were conducted for collecting data from these three case studies. To achieve the aim of this research, the study was carried out on the maintenance activities, safety practices and cost related to escalator maintenance. As one of the important means of access in building, it is very crucial to increase effectiveness of escalator particularly in commercial building. It is expected that readers will get clear information on the maintenance activities and safety practices of escalator in commercial building.

  8. of buildings and Constructions

    Directory of Open Access Journals (Sweden)

    Shirokov Alexey Igorevich

    2012-09-01

    Full Text Available In this article the author examines the influence of wear on the ONS to the quality and investment attractiveness, and gives recommendations on how to estimate the accumulated depreciation. A formula for calculating the market value of the ONS taking into account accumulated depreciation.

  9. Housing and construction markets

    Science.gov (United States)

    Delton Alderman

    2013-01-01

    The UNECE region's economic recovery has been sluggish; national income in more than half of the region’s countries has yet to return to 2008 levels and unemployment remains high. Numerous risks remain that could endanger even moderate growth in 2014 and beyond as the eurozone crisis appears to be deepening. Further deterioration in the eurozone or an economic...

  10. ATTENTION MAINTENANCE IN NOVICE DRIVERS: ASSESSMENT AND TRAINING

    OpenAIRE

    Pradhan, Anuj; Masserang, Kathleen M.; Divekar, Gautam; Reagan, Ian; Thomas, F. Dennis; Blomberg, Richard; Pollatsek, Alexander; Fisher, Donald

    2009-01-01

    All programs assessing attention maintenance inside the vehicle have required eye trackers and either a driving simulator or a specially equipped field vehicle. Ideally, one would like a way to assess attention maintenance that could be implemented on a desktop PC. Additionally, one would like to have a program that could be used to train novice drivers to maintain their attention more safely on the forward roadway. An experiment was run (a) to determine whether a program FOCAL (Focused Conce...

  11. Reactor installation and maintenance for the Advanced Neutron Source

    International Nuclear Information System (INIS)

    Smith, B.R.

    1993-01-01

    Advanced Neutron Source (ANS) reactor assembly components have been modeled in great detail in IGRIP in order to realistically simulate preliminary installation and maintenance processes. Animation of these processes has been captured in a 15-minute video with narration. Approximately 90% of the parts were initially translated from CADAM (a two-dimensional drawing package) to IGRIP and then revolved or extruded. IGRIP's IGES translator greatly reduced the time required to perform this operation. The interfacing of devices in the work cell has identified numerous design inconsistencies. Most of the modeled reactor components are devices with a single degree of freedom (DOF) however, some of the slanted experiments required 6 DOF so that they could be removed at an angle in order to clear the reflector vessel flanges. IGRIP's collision detection feature proved to be extremely helpful in determining interferences when removing the experiments. The combination of three-dimensional visualization and collision detection allows engineers to clearly and easily visualize potential design problems before the construction phase of the project

  12. Florida maintenance rating program (MRP) assessment and enhancement : final report, May 28, 2008 [summary].

    Science.gov (United States)

    2008-01-01

    The Florida Department of Transportation : (FDOT) has used its maintenance rating : program (MRP) to evaluate the states : highway maintenance conditions and : determine asset maintenance needs since : 1985. Periodic evaluation of the program is :...

  13. A joint spare part and maintenance inspection optimisation model using the Delay-Time concept

    International Nuclear Information System (INIS)

    Wang Wenbin

    2011-01-01

    Spare parts and maintenance are closely related logistics activities where maintenance generates the need for spare parts. When preventive maintenance is present, it may need more spare parts at one time because of the planned preventive maintenance activities. This paper considers the joint optimisation of three decision variables, e.g., the ordering quantity, ordering interval and inspection interval. The model is constructed using the well-known Delay-Time concept where the failure process is divided into a two-stage process. The objective function is the long run expected cost per unit time in terms of the three decision variables to be optimised. Here we use a block-based inspection policy where all components are inspected at the same time regardless of the ages of the components. This creates a situation that the time to failure since the immediate previous inspection is random and has to be modelled by a distribution. This time is called the forward time and a limiting but closed form of such distribution is obtained. We develop an algorithm for the optimal solution of the decision process using a combination of analytical and enumeration approaches. The model is demonstrated by a numerical example. - Highlights: → Joint optimisation of maintenance and spare part inventory. → The use of the Delay-Time concept. → Block-based inspection. → Fixed order interval but variable order quantity.

  14. A Real-Time Quantitative Condition Alerting and Analysis Support System for Aircraft Maintenance, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Financial constraints and the need for improved operational efficiency are requiring airlines to emphasize "on-condition" maintenance over scheduled maintenance...

  15. Adaptation and Implementation of Predictive Maintenance Technique with Nondestructive Testing for Power Plants

    International Nuclear Information System (INIS)

    Jung, Gye Jo; Jung, Nam Gun

    2010-01-01

    Many forces are pressuring utilities to reduce operating and maintenance costs without cutting back on reliability or availability. Many utility managers are re-evaluating maintenance strategies to meet these demands. To utilities how to reduce maintenance costs and extent the effective operating life of equipment, predictive maintenance technique can be adapted. Predictive maintenance had three types program which are in-house program, engineering company program and mixed program. We can approach successful predictive maintenance program with 'smart trust' concept

  16. Design and Construction of Pool Door for Research Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Kwangsub; Lee, Sangjin; Choi, Jinbok; Oh, Jinho; Lee, Jongmin [KAERI, Daejeon (Korea, Republic of)

    2016-05-15

    The pool door is a structure to isolate the reactor pool from the service pool for maintenance. The pool door is installed before the reactor pool is drained. The pool door consists of structural component and sealing component. The main structures of the pool door are stainless steel plates and side frames. The plates and frames are assembled by welded joints. Lug is welded at the top of the plate. The pool door is submerged in the pool water when it is used. Materials of the pool door should be resistive to corrosion and radiation. Stainless steel is used in structural components and air nozzle assemblies. Features of design and construction of the pool door for the research reactor are introduced. The pool door is designed to isolate the reactor pool for maintenance. Structural analysis is performed to evaluate the structural integrity during earthquake. Tests and inspections are also carried out during construction to identify the safety and function of the pool door.

  17. Design and Construction of Pool Door for Research Reactor

    International Nuclear Information System (INIS)

    Jung, Kwangsub; Lee, Sangjin; Choi, Jinbok; Oh, Jinho; Lee, Jongmin

    2016-01-01

    The pool door is a structure to isolate the reactor pool from the service pool for maintenance. The pool door is installed before the reactor pool is drained. The pool door consists of structural component and sealing component. The main structures of the pool door are stainless steel plates and side frames. The plates and frames are assembled by welded joints. Lug is welded at the top of the plate. The pool door is submerged in the pool water when it is used. Materials of the pool door should be resistive to corrosion and radiation. Stainless steel is used in structural components and air nozzle assemblies. Features of design and construction of the pool door for the research reactor are introduced. The pool door is designed to isolate the reactor pool for maintenance. Structural analysis is performed to evaluate the structural integrity during earthquake. Tests and inspections are also carried out during construction to identify the safety and function of the pool door

  18. Construction and demolition waste indicators.

    Science.gov (United States)

    Mália, Miguel; de Brito, Jorge; Pinheiro, Manuel Duarte; Bravo, Miguel

    2013-03-01

    The construction industry is one of the biggest and most active sectors of the European Union (EU), consuming more raw materials and energy than any other economic activity. Furthermore, construction waste is the commonest waste produced in the EU. Current EU legislation sets out to implement construction and demolition waste (CDW) prevention and recycling measures. However it lacks tools to accelerate the development of a sector as bound by tradition as the building industry. The main objective of the present study was to determine indicators to estimate the amount of CDW generated on site both globally and by waste stream. CDW generation was estimated for six specific sectors: new residential construction, new non-residential construction, residential demolition, non-residential demolition, residential refurbishment, and non-residential refurbishment. The data needed to develop the indicators was collected through an exhaustive survey of previous international studies. The indicators determined suggest that the average composition of waste generated on site is mostly concrete and ceramic materials. Specifically for new residential and new non-residential construction the production of concrete waste in buildings with a reinforced concrete structure lies between 17.8 and 32.9 kg m(-2) and between 18.3 and 40.1 kg m(-2), respectively. For the residential and non-residential demolition sectors the production of this waste stream in buildings with a reinforced concrete structure varies from 492 to 840 kg m(-2) and from 401 to 768 kg/m(-2), respectively. For the residential and non-residential refurbishment sectors the production of concrete waste in buildings lies between 18.9 and 45.9 kg/m(-2) and between 18.9 and 191.2 kg/m(-2), respectively.

  19. Architecture between construction and expression

    Directory of Open Access Journals (Sweden)

    Luca Lanini

    2015-11-01

    Full Text Available I think that the problem is basically the same as always: to redefine the relationship between Construction and Expression. On one hand, construction is considered an endeavor, on the other hand, a tendency to contest architecture only with expression. The relationship between architecture and control of urban phenomena is a relationship that has been gradually lost in the past three decades and has been replaced by the relationship between finance and planning. A useful object is very different from a building: for its time and costs of construction. Buildings are expected to last many years and are paid with everybody’s taxes, a design object’s lifespan is perhaps fifty years, then it’s ready to be modernized or for the landfill ... I believe that the main tool that a designer must have, beyond necessary technical skills, is the capacity of his/her own critical thought.

  20. Installation, care, and maintenance of wood shake and shingle roofs

    Science.gov (United States)

    Tony Bonura; Jack Dwyer; Arnie Nebelsick; Brent Stuart; R. Sam Williams; Christopher Hunt

    2011-01-01

    This article gives general guidelines for selection, installation, finishing, and maintenance of wood shake and shingle roofs. The authors have gathered information from a variety of sources: research publications on wood finishing, technical data sheets from paint manufacturers, installation instructions for shake and shingle roofs, and interviews with experts having...