WorldWideScience

Sample records for technology pipe trade

  1. Pipe inspection using the pipe crawler. Innovative technology summary report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

    The US Department of Energy (DOE) continually seeks safer and more cost-effective remediation technologies for use in the decontamination and decommissioning (D and D) of nuclear facilities. In several of the buildings at the Fernald Site, there is piping that was used to transport process materials. As the demolition of these buildings occur, disposal of this piping has become a costly issue. Currently, all process piping is cut into ten-foot or less sections, the ends of the piping are wrapped and taped to prevent the release of any potential contaminants into the air, and the piping is placed in roll off boxes for eventual repackaging and shipment to the Nevada Test Site (NTS) for disposal. Alternatives that allow for the onsite disposal of process piping are greatly desired due to the potential for dramatic savings in current offsite disposal costs. No means is currently employed to allow for the adequate inspection of the interior of piping, and consequently, process piping has been assumed to be internally contaminated and thus routinely disposed of at NTS. The BTX-II system incorporates a high-resolution micro color camera with lightheads, cabling, a monitor, and a video recorder. The complete probe is capable of inspecting pipes with an internal diameter (ID) as small as 1.4 inches. By using readily interchangeable lightheads, the same system is capable of inspecting piping up to 24 inches in ID. The original development of the BTX system was for inspection of boiler tubes and small diameter pipes for build-up, pitting, and corrosion. However, the system is well suited for inspecting the interior of most types of piping and other small, confined areas. The report describes the technology, its performance, uses, cost, regulatory and policy issues, and lessons learned.

  2. Inspection technology for high pressure pipes

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Jae H.; Lee, Jae C.; Eum, Heung S.; Choi, Yu R.; Moon, Soon S.; Jang, Jong H

    2000-02-01

    Various kinds of defects are likely to be occurred in the welds of high pressure pipes in nuclear power plants. Considering the recent accident of Zuruga nuclear power plant in Japan, reasonable policy is strongly requested for the high pressure pipe integrity. In this study, we developed the technologies to inspect pipe welds automatically. After development of scanning robot prototype in the first research year, we developed and implemented the algorithm of automatic tracking of the scanning robot along the weld line of the pipes. We use laser slit beam on weld area and capture the image using digital camera. Through processing of the captures image, we finally determine the weld line automatically. In addition, we investigated a new technology on micro systems for developing micro scanning robotic inspection of the pipe welds. The technology developed in this study is being transferred to the industry. (author)

  3. IPIRG programs - advances in pipe fracture technology

    Energy Technology Data Exchange (ETDEWEB)

    Wilkowski, G.; Olson, R.; Scott, P. [Batelle, Columbus, OH (United States)

    1997-04-01

    This paper presents an overview of the advances made in fracture control technology as a result of the research performed in the International Piping Integrity Research Group (IPIRG) program. The findings from numerous experiments and supporting analyses conducted to investigate the behavior of circumferentially flawed piping and pipe systems subjected to high-rate loading typical of seismic events are summarized. Topics to be discussed include; (1) Seismic loading effects on material properties, (2) Piping system behavior under seismic loads, (3) Advances in elbow fracture evaluations, and (4) {open_quotes}Real{close_quotes} piping system response. The presentation for each topic will be illustrated with data and analytical results. In each case, the state-of-the-art in fracture mechanics prior to the first IPIRG program will be contrasted with the state-of-the-art at the completion of the IPIRG-2 program.

  4. Heat Pipe Technology: A bibliography with abstracts

    Science.gov (United States)

    1974-01-01

    This bibliography lists 149 references with abstracts and 47 patents dealing with applications of heat pipe technology. Topics covered include: heat exchangers for heat recovery; electrical and electronic equipment cooling; temperature control of spacecraft; cryosurgery; cryogenic, cooling; nuclear reactor heat transfer; solar collectors; laser mirror cooling; laser vapor cavitites; cooling of permafrost; snow melting; thermal diodes variable conductance; artery gas venting; and venting; and gravity assisted pipes.

  5. Technological Progress, Exit and Trade

    DEFF Research Database (Denmark)

    Schröder, Philipp; Sørensen, Allan

    The dynamics of export market exit and firm closure have found limited attention in heterogeneous-firms trade models. Accordingly, several of the predictions on exit stemming from new-new trade theory are at odds with the stylized facts. Empirically, higher productivity firms survive longer, higher...... productivity exporters are more likely to continue to export, and market exit is typically preceded by periods of contracting market shares. We show that the simple inclusion of exogenous economy wide technological progress into the standard Melitz (2003) model generates a tractable dynamic framework...

  6. Piping and tubing technology: A compilation

    Science.gov (United States)

    1971-01-01

    A compilation on the devices, techniques, and methods used in piping and tubing technology is presented. Data cover the following: (1) a number of fittings, couplings, and connectors that are useful in joining tubing and piping and various systems, (2) a family of devices used where flexibility and/or vibration damping are necessary, (3) a number of devices found useful in the regulation and control of fluid flow, and (4) shop hints to aid in maintenance and repair procedures such as cleaning, flaring, and swaging of tubes.

  7. 77 FR 52766 - Technology and Trading Roundtable

    Science.gov (United States)

    2012-08-30

    ... COMMISSION Technology and Trading Roundtable AGENCY: Securities and Exchange Commission. ACTION: Notice of... day roundtable entitled ``Technology and Trading: Promoting Stability in Today's Markets'' to discuss... ways in which market participants design, implement, and manage complex and inter-connected...

  8. 77 FR 56697 - Technology and Trading Roundtable

    Science.gov (United States)

    2012-09-13

    ...] Technology and Trading Roundtable AGENCY: Securities and Exchange Commission. ACTION: Notice of roundtable... entitled ``Technology and Trading: Promoting Stability in Today's Markets'' to discuss ways to promote... Trading and Markets, Securities and Exchange Commission, 100 F Street NE., Washington, DC 20549-7010....

  9. 75 FR 1590 - Environmental Technologies Trade Advisory Committee (ETTAC)

    Science.gov (United States)

    2010-01-12

    ... Environmental Technologies Trade Advisory Committee (ETTAC) AGENCY: International Trade Administration, U.S. Department of Commerce. ACTION: Notice of open meeting. SUMMARY: The Environmental Technologies Trade... Environmental Technologies Industries (OEEI), International Trade Administration, U.S. Department of Commerce...

  10. Technological Progress, Exit and Trade

    DEFF Research Database (Denmark)

    Schröder, Philipp; Sørensen, Allan

    The dynamics of export market exit and firm closure have found limited attention in heterogeneous-firms trade models. Accordingly, several of the predictions on exit stemming from new-new trade theory are at odds with the stylized facts. Empirically, higher productivity firms survive longer, higher...

  11. 75 FR 18482 - Environmental Technologies Trade Advisory Committee (ETTAC)

    Science.gov (United States)

    2010-04-12

    ... Environmental Technologies Trade Advisory Committee (ETTAC) AGENCY: International Trade Administration, U.S. Department of Commerce. ACTION: Notice of open meeting. SUMMARY: The Environmental Technologies Trade Advisory Committee (ETTAC) will hold its quarterly meeting to discuss environmental technologies...

  12. 75 FR 52716 - Environmental Technologies Trade Advisory Committee (ETTAC)

    Science.gov (United States)

    2010-08-27

    ... Environmental Technologies Trade Advisory Committee (ETTAC) AGENCY: International Trade Administration, U.S. Department of Commerce. ACTION: Notice of open meeting. SUMMARY: The Environmental Technologies Trade Advisory Committee (ETTAC) will hold its quarterly meeting to discuss environmental technologies...

  13. Tube drawing technology for seamless pipes. Application to the Cu/Nb/Cu sandwiched pipes

    Energy Technology Data Exchange (ETDEWEB)

    Tsukada, Saburo; Ohnuki, Masao [Hitachi Cable, Ltd., Tsuchiura, Ibaraki (Japan); Fujino, Takeo; Saito, Kenji; Inoue, Hitoshi; Hitomi, Nobuteru; Yamazaki, Yoshishige [High Energy Accelerator Research Organization, Tsukuba, Ibaraki (Japan); Watanabe, Kakuji [Okuda Kinzoku Co. Ltd., Ota, Fukui (Japan)

    2001-02-01

    Tube drawing technology based on copper tubes at the Hitachi Cable Corporation was applied to manufacture Cu/Nb/Cu sandwiched seamless pipes for Nb/Cu clad superconducting RF cavities, which is being developed at KEK. This is the first application in our company. We met several problems but finally succeeded to fabricate 11 pipes needed to hydro-bulge forming for 1300 MHz single cell cavities. Here, we explain this technology and report the problems which happened during the manufacturing. (author)

  14. 75 FR 60736 - Water Technology Trade Mission to India

    Science.gov (United States)

    2010-10-01

    ... International Trade Administration Water Technology Trade Mission to India AGENCY: International Trade Administration, Department of Commerce. ACTION: Notice. ] Water Technology Trade Mission to India; February 28... Administration, U.S. and Foreign Commercial Service (CS), is organizing a Water Technology Trade Mission to...

  15. 76 FR 26247 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2011-05-06

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... CONTACT: Mr. Todd DeLelle, Office of Energy & Environmental Industries (OEEI), International...

  16. 78 FR 46921 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2013-08-02

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... INFORMATION CONTACT: Ms. Maureen Hinman, Office of Energy & Environmental Industries (OEEI),...

  17. 78 FR 63963 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2013-10-25

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a ] meeting of the Environmental Technologies Trade... INFORMATION CONTACT: Ms. Maureen Hinman, Office of Energy & Environmental Industries (OEEI),...

  18. 77 FR 6064 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2012-02-07

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... FURTHER INFORMATION CONTACT: Mr. Todd DeLelle, Office of Energy & Environmental Industries,...

  19. Variable conductance heat pipe technology. [research project resulting in heat pipe experiment on OAO-3 satellite

    Science.gov (United States)

    Anderson, W. T.; Edwards, D. K.; Eninger, J. E.; Marcus, B. D.

    1974-01-01

    A research and development program in variable conductance heat pipe technology is reported. The project involved: (1) theoretical and/or experimental studies in hydrostatics, (2) hydrodynamics, (3) heat transfer into and out of the pipe, (4) fluid selection, and (5) materials compatibility. The development, fabrication, and test of the space hardware resulted in a successful flight of the heat pipe experiment on the OAO-3 satellite. A summary of the program is provided and a guide to the location of publications on the project is included.

  20. 76 FR 11203 - Water Technology Trade Mission to India

    Science.gov (United States)

    2011-03-01

    ... International Trade Administration Water Technology Trade Mission to India AGENCY: International Trade... Water Technology Trade Mission to India from February 28 to March 4, 2011. The purpose of the mission is to expose U.S. firms to India's rapidly expanding water and waste water market and to assist...

  1. 77 FR 58356 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2012-09-20

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... innovation in the environmental technology sector. Background: The ETTAC is mandated by Public Law...

  2. 78 FR 21909 - Environmental Technologies Trade Advisory Committee; Public Meeting

    Science.gov (United States)

    2013-04-12

    ... International Trade Administration Environmental Technologies Trade Advisory Committee; Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... administration of programs to expand U.S. exports of environmental technologies, goods, services, and...

  3. Firm Exit, Technological Progress and Trade

    DEFF Research Database (Denmark)

    Schröder, Philipp; Sørensen, Allan

    productivity firms survive longer, most firm closures are young firms, higher productivity exporters are more likely to continue to export compared to less productive exporters and market exits as well as firm closures are typically preceded by periods of contracting market shares. The present paper shows...... that the simple inclusion of exogenous economy wide technological progress into the standard Melitz (2003) model generates a tractable dynamic framework that generates endogenous exit decisions of firms in line with the stylized facts. Furthermore, we derive the effects of faster technological progress and trade...

  4. 76 FR 51001 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2011-08-17

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... INFORMATION CONTACT: Mr. Todd DeLelle, Office of Energy & Environmental Industries (OEEI), International...

  5. 76 FR 66912 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2011-10-28

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY... notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies Trade... information. FOR FURTHER INFORMATION CONTACT: Mr. Todd DeLelle, Office of Energy & Environmental...

  6. Technological Intensity and Patterns in Slovenian Merchandise Trade

    Directory of Open Access Journals (Sweden)

    Stefan Bojnec

    2006-03-01

    Full Text Available This paper analyses the technological intensity of industries classified by technology levels (low-technology, medium-low-technology, medium-high-technology and high-technology and patterns in Slovenian merchandise trade developments between and within industries in the post-independence years since 1992. Merchandise trade flows by industries are rather homogeneous in the extent of a decline in the external trade integration measured by intra-industry trade indices and in the presence of relative trade advantages. More considerable differences are found in trade structures and trade quality using the ratio of export to import unit values. In exports we confirm the climbing-up technological development approach, including the jump-up in the medium-high-technology industries in the non-EU-15 markets. Medium-low- and medium-high-technology industries experienced greater price competitiveness in trade with the EU-15 countries. High-technology industries and to a lesser extent low-technology industries experienced a greater competitiveness in the EU-15 internal and external trade. These similarities and differences imply implications for industries with different technological intensity, which are associated with trade and policy shifts before and after the accession of Slovenia to the EU.

  7. Pipe Crawler{reg_sign} internal piping characterization system - deactivation and decommissioning focus area. Innovative Technology Summary Report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-02-01

    Pipe Crawler{reg_sign} is a pipe surveying system for performing radiological characterization and/or free release surveys of piping systems. The technology employs a family of manually advanced, wheeled platforms, or crawlers, fitted with one or more arrays of thin Geiger Mueller (GM) detectors operated from an external power supply and data processing unit. Survey readings are taken in a step-wise fashion. A video camera and tape recording system are used for video surveys of pipe interiors prior to and during radiological surveys. Pipe Crawler{reg_sign} has potential advantages over the baseline and other technologies in areas of cost, durability, waste minimization, and intrusiveness. Advantages include potentially reduced cost, potential reuse of the pipe system, reduced waste volume, and the ability to manage pipes in place with minimal disturbance to facility operations. Advantages over competing technologies include potentially reduced costs and the ability to perform beta-gamma surveys that are capable of passing regulatory scrutiny for free release of piping systems.

  8. 77 FR 35941 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2012-06-15

    ... International Trade Administration Environmental Technologies Trade Advisory Committee Public Meeting AGENCY...: This notice sets forth the schedule and proposed agenda of a meeting of the Environmental Technologies... innovation in the environmental technology sector. Background: The ETTAC is mandated by Public Law...

  9. Trade, Foreign Direct Investment, and International Technology Transfer: A Survey

    National Research Council Canada - National Science Library

    Kamal Saggi

    2002-01-01

    ...? Using these questions as motivation, this article surveys the recent trade literature on international technology transfer, paying particular attention to the role of foreign direct investment...

  10. Additional risk of end-of-the-pipe geoengineering technologies

    Science.gov (United States)

    Bohle, Martin

    2014-05-01

    Humans are engineers, even the artists who engineer the surface of the globe. Should humans endeavour to engineer the Earth to counter climate change hazards? Striving towards 'global sustainability' will require to adjust the current production and consumption patterns. Contrary to an approach of global sustainability, 'geoengineering' deploys a 'technology fix' for the same purpose. Humans are much inclined to look for technological fixes for problems because well engineered technological methods have created modern societies. Thus, it seems obvious to apply an engineering solution to climate change issues too. In particular, as air pollution causing acid rains has been reduced by cleaner combustion processes or ozone destructing chemical coolants have been replaced by other substances. Common to these approaches was to reduce inputs into global or regional systems by withholding emission, replacing substances or limiting use cases for certain substances. Thus, the selected approach was a technological fix or regulatory measure targeting the 'start of the pipe'. However applying a 'start of the pipe' approach to climate change faces the issue that mankind should reduce inputs were its hurts, namely reducing radically energy that is produced from burning fossil fuels. Capping burning of fossil fuels would be disruptive for the economic structures or the consumption pattern of the developed and developing industrialised societies. Facing that dilemma, affordable geoengineering looks tempting for some. However geoengineering technologies, which counter climate change by other means than carbon capture at combustion, are of a different nature than the technological fixes and negotiated regulatory actions, which so far have been applied to limit threats to regional and global systems. Most of the proposed technologies target other parts of the climate system but the carbon-dioxide input into the atmosphere. Therefore, many geoengineering technologies differ

  11. 76 FR 58769 - Ports and Maritime Technology Trade Mission to India

    Science.gov (United States)

    2011-09-22

    ... general and trade media, direct mail, notices by industry trade associations and other ] multiplier groups... International Trade Administration Ports and Maritime Technology Trade Mission to India AGENCY: International Trade Administration, Department of Commerce. ACTION: Notice. Mission Description The United States...

  12. 76 FR 73595 - Healthcare Technology, Policy & Trade Mission: Mexico City, Mexico, May 13-16, 2012

    Science.gov (United States)

    2011-11-29

    ... trade media, direct mail, industry trade associations and other multiplier groups, and publicity at... International Trade Administration Healthcare Technology, Policy & Trade Mission: Mexico City, Mexico, May 13-16, 2012 AGENCY: International Trade Administration, Department of Commerce. ACTION: Notice. Mission...

  13. 77 FR 7131 - Addendum to Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2012-02-10

    ... International Trade Administration Addendum to Environmental Technologies Trade Advisory Committee Public... Environmental Technologies Trade Advisory Committee (ETTAC) will be changed to include additional topics. DATES... administration of programs to expand U.S. exports of environmental technologies, goods, services, and...

  14. New technologies for modernization and management of irrigation piping

    Directory of Open Access Journals (Sweden)

    Alessandro Santini

    2006-07-01

    Full Text Available Improving the efficiency of irrigation piping-systems represents a fundamental prerequisite to achieve a sustainable irrigation under both the environmental the economic point of view. Such an issue is important not only in areas with limited water-budget, but even in those areas where the increasing reduction of the water availability has become a worrying perspective. In the last twenty years, the reduction in water-availability and the increasing costs of system-management have highly limited the cultivated areas which are irrigated by means of water-distribution nets. In the recent years, most of the Italian investments in the irrigation-field have been oriented toward upgrading the open-channels irrigation nets, which were built starting from 50’, by substituting these latter with pipes. The modernization of the piping-systems has been achieved via innovative design solutions, such as back and loading water tanks or towers, which have lead to an improvement into the flexibility of the net management. Nearby the employment of such technologies, nowadays it is also possible to use the knowledge of the physical processes involved in the management of an irrigation system, starting from energy as well as mass exchange in the continuum soil-plant-atmosphere till to a detailed hydraulic description of a water distribution net under different flow regimes. Such a type of knowledge may be used to improve as well as buildup mathematical models for a decisions-support toward the management of complex irrigation districts. The acquirement of the data needed to implement such models has been deeply improved thanks to Geographical Information Systems (GIS, and techniques to analyze satellite-data coming from the Earth observation, which enable to characterize and monitor vegetation at different spatial, spectral and radiometric resolutions.

  15. Evaluation of Trenchless Installation Technology for Radioactive Wastewater Piping Applications

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, Sharon M [ORNL; Jubin, Robert Thomas [ORNL; Patton, Bradley D [ORNL; Sullivan, Nicholas M [ORNL; Bugbee, Kathy P [ORNL

    2009-09-01

    The U.S. Department of Energy (DOE) Office of Environmental Management (EM) cleanup mission at Oak Ridge National Laboratory (ORNL) includes dispositioning facilities, contaminated legacy materials/waste, and contamination sources and remediation of soil under facilities, groundwater, and surface water to support final Records of Decision (RODs). The Integrated Facilities Disposition Project (IFDP) is a roughly $15B project for completion of the EM mission at Oak Ridge, with a project duration of up to 35 years. The IFDP Mission Need Statement - Critical Decision-0 (CD-0) - was approved by DOE in July 2007, and the IFDP Alternative Selection and Cost Range - Critical Decision-1 (CD-1) - was approved in November 2008. The IFDP scope includes reconfiguration of waste collection and treatment systems as needed to complete the IFDP remediation and decontamination and decommissioning (D&D) missions in a safe and cost-effective manner while maintaining compliance with all governing regulations and bodies and preserving the support of continuing operations at ORNL. A step in the CD-1 approval process included an external technical review (ETR) of technical approaches proposed in the CD-1 document related to the facility reconfiguration for the ORNL radioactive waste and liquid low-level waste management systems. The ETR team recommended that the IFDP team consider the use of trenchless technologies for installing pipelines underground in and around contaminated sites as part of the alternatives evaluations required in support of the CD-2 process. The team specifically recommended evaluating trenchless technologies for installing new pipes in existing underground pipelines as an alternative to conventional open trench installation methods. Potential benefits could include reduction in project costs, less costly underground piping, fewer disruptions of ongoing and surface activities, and lower risk for workers. While trenchless technologies have been used extensively in the

  16. The CoLaPipe--the new Cottbus large pipe test facility at Brandenburg University of Technology Cottbus-Senftenberg.

    Science.gov (United States)

    König, Franziska; Zanoun, El-Sayed; Öngüner, Emir; Egbers, Christoph

    2014-07-01

    The CoLaPipe is a novel test facility at the Department of Aerodynamics and Fluid Mechanics, Brandenburg University of Technology Cottbus-Senftenberg (BTU Cottbus-Senftenberg), set up to investigate fully developed pipe flow at high Reynolds numbers (Re(m) ⩽ 1.5 × 10(6)). The design of the CoLaPipe is closed-return with two available test sections providing a length-to-diameter ratio of L/D = 148 and L/D = 79. Within this work, we introduce the CoLaPipe and describe the various components in detail, i.e., the settling chamber, the inlet contraction, the blower, bends, and diffusers as well as the cooling system. A special feature is the numerically optimized contraction design. The applications of different measuring techniques such as hot-wire anemometry and static pressure measurements to quantitatively evaluate the mean flow characteristics and turbulence statistics are discussed as well. In addition, capabilities and limitations of available and new pipe flow facilities are presented and reconsidered based on their length-to-diameter ratio, the achieved Reynolds numbers, and the resulting spatial resolution. Here, the focus is on the facility design, the presentation of some basic characteristics, and its contribution to a reviewed list of specific questions still arising, e.g., scaling and structural behavior of turbulent pipe flow as well as the influence of the development length on turbulence investigations.

  17. Engineering, Trade, and Technical Cluster. Task Analyses. Drafting and Design Technology, Precision Machining Technology, Electronics Technology.

    Science.gov (United States)

    Henrico County Public Schools, Glen Allen, VA. Virginia Vocational Curriculum and Resource Center.

    Developed in Virginia, this publication contains task analysis guides to support selected tech prep programs that prepare students for careers in the engineering, trade, and technical cluster. Three occupations are profiled: drafting and design technology, precision machining technology, and electronics technology. Each guide contains the…

  18. Phased array ultrasonic technology contribution to engineering critical assessment (ECA) of economizer piping welds

    Energy Technology Data Exchange (ETDEWEB)

    Ciorau, P.; Gray, D.; Daks, W. [Ontario Power Generation, Pickering, Ontario (Canada)]. E-mail: peter.ciorau@opg.com

    2006-09-15

    This paper describes the application of phased array ultrasonic technology for engineering critical assessment of economizer piping welds. The objective is to detect and size fatigue cracks in the counter bore area of carbon steel boiler feedwater piping welds of a thermal station. A size accuracy of {+-} 1 mm for the outer ligament was required.

  19. Pipe inspection using the BTX-II. Innovative technology summary report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-05-01

    The US Department of Energy (DOE) continually seeks safer and more cost-effective remediation technologies for use in the decontamination and decommissioning (D and D) of nuclear facilities. In several of the buildings at the Fernald Site, there is piping that was used to transport process materials. As the demolition of these buildings occur, disposal of this piping has become a costly issue. Currently, all process piping is cut into ten-foot or less sections, the ends of the piping are wrapped and taped to prevent the release of any potential contaminants into the air, and the piping is placed in roll off boxes for eventual repackaging and shipment to the Nevada Test Site (NTS) for disposal. Alternatives that allow for the onsite disposal of process piping are greatly desired due to the potential for dramatic savings in current offsite disposal costs. No means is currently employed to allow for the adequate inspection of the interior of piping, and consequently, process piping has been assumed to be internally contaminated and thus routinely disposed of at NTS. The BTX-II system incorporates a high-resolution micro color camera with lightheads, cabling, a monitor, and a video recorder. The complete probe is capable of inspecting pipes with an internal diameter (ID) as small as 1.4 inches. By using readily interchangeable lightheads, the same system is capable of inspecting piping up to 24 inches in ID. The original development of the BTX system was for inspection of boiler tubes and small diameter pipes for build-up, pitting, and corrosion. However, the system is well suited for inspecting the interior of most types of piping and other small, confined areas. The report describes the technology, its performance, uses, cost, regulatory and policy issues, and lessons learned.

  20. Pressure and bending tests on fibreglass augmented steel technology pipes

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Qishi; Ozkan, Istemi F. [C-FER Technologies, Edmonton, Alberta, (Canada); Salama, Mamdouh M. [ConocoPhillips Company, Houston, Texas, (United States)

    2010-07-01

    The economic manufacture of large diameter high pressure pipelines is a challenge. The FAST-PipeTM concept is fabricated from a steel liner hoop-wound with non-impregnated fibreglass stands. This report presents the qualification results of the FAST-PipeTM concept. The qualification testing program studied the effects of external environment (frozen/thawed cycle), load duration and the wrap thickness on the burst and bending capacity of the FAST-PipeTM concept. Burst and pressure-bend tests were performed under different conditions and for different thickness of fibreglass. The values obtained were compared to those from unwrapped pipes. It also established FAST-PipeTM behaviour in several loading scenarios using the FEA model. The burst tests results showed that freezing temperatures do not have an impact on the pressure capacity of FAST-PipeTM. The results of the tests showed the effectiveness of dry fibreglass wrap in increasing the internal pressure capacity of the pipe.

  1. Measures of International Manufacturing and Trade of Clean Energy Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Engel-Cox, Jill; Sandor, Debbie; Keyser, David; Mann, Margaret

    2017-05-25

    The technologies that produce clean energy, such as solar photovoltaic panels and lithium ion batteries for electric vehicles, are globally manufactured and traded. As demand and deployment of these technologies grows exponentially, the innovation to reach significant economies of scale and drive down energy production costs becomes less in the technology and more in the manufacturing of the technology. Manufacturing innovations and other manufacturing decisions can reduce costs of labor, materials, equipment, operating costs, and transportation, across all the links in the supply chain. To better understand the manufacturing aspect of the clean energy economy, we have developed key metrics for systematically measuring and benchmarking international manufacturing of clean energy technologies. The metrics are: trade, market size, manufacturing value-added, and manufacturing capacity and production. These metrics were applied to twelve global economies and four representative technologies: wind turbine components, crystalline silicon solar photovoltaic modules, vehicle lithium ion battery cells, and light emitting diode packages for efficient lighting and other consumer products. The results indicated that clean energy technologies are being developed via complex, dynamic, and global supply chains, with individual economies benefiting from different technologies and links in the supply chain, through both domestic manufacturing and global trade.

  2. Carbon Dioxide Reduction Technology Trade Study

    Science.gov (United States)

    Jeng, Frank F.; Anderson, Molly S.; Abney, Morgan B.

    2011-01-01

    For long-term human missions, a closed-loop atmosphere revitalization system (ARS) is essential to minimize consumables. A carbon dioxide (CO2) reduction technology is used to reclaim oxygen (O2) from metabolic CO2 and is vital to reduce the delivery mass of metabolic O2. A key step in closing the loop for ARS will include a proper CO2 reduction subsystem that is reliable and with low equivalent system mass (ESM). Sabatier and Bosch CO2 reduction are two traditional CO2 reduction subsystems (CRS). Although a Sabatier CRS has been delivered to International Space Station (ISS) and is an important step toward closing the ISS ARS loop, it recovers only 50% of the available O2 in CO2. A Bosch CRS is able to reclaim all O2 in CO2. However, due to continuous carbon deposition on the catalyst surface, the penalties of replacing spent catalysts and reactors and crew time in a Bosch CRS are significant. Recently, technologies have been developed for recovering hydrogen (H2) from Sabatier-product methane (CH4). These include methane pyrolysis using a microwave plasma, catalytic thermal pyrolysis of CH4 and thermal pyrolysis of CH4. Further, development in Sabatier reactor designs based on microchannel and microlith technology could open up opportunities in reducing system mass and enhancing system control. Improvements in Bosch CRS conversion have also been reported. In addition, co-electrolysis of steam and CO2 is a new technology that integrates oxygen generation and CO2 reduction functions in a single system. A co-electrolysis unit followed by either a Sabatier or a carbon formation reactor based on Bosch chemistry could improve the overall competitiveness of an integrated O2 generation and CO2 reduction subsystem. This study evaluates all these CO2 reduction technologies, conducts water mass balances for required external supply of water for 1-, 5- and 10-yr missions, evaluates mass, volume, power, cooling and resupply requirements of various technologies. A system

  3. Heat Pipe-Assisted Thermoelectric Power Generation Technology for Waste Heat Recovery

    Science.gov (United States)

    Jang, Ju-Chan; Chi, Ri-Guang; Rhi, Seok-Ho; Lee, Kye-Bock; Hwang, Hyun-Chang; Lee, Ji-Su; Lee, Wook-Hyun

    2015-06-01

    Currently, large amounts of thermal energy dissipated from automobiles are emitted through hot exhaust pipes. This has resulted in the need for a new efficient recycling method to recover energy from waste hot exhaust gas. The present experimental study investigated how to improve the power output of a thermoelectric generator (TEG) system assisted by a wickless loop heat pipe (loop thermosyphon) under the limited space of the exhaust gas pipeline. The present study shows a novel loop-type heat pipe-assisted TEG concept to be applied to hybrid vehicles. The operating temperature of a TEG's hot side surface should be as high as possible to maximize the Seebeck effect. The present study shows a novel TEG concept of transferring heat from the source to the sink. This technology can transfer waste heat to any local place with a loop-type heat pipe. The present TEG system with a heat pipe can transfer heat and generate an electromotive force power of around 1.3 V in the case of 170°C hot exhaust gas. Two thermoelectric modules (TEMs) for a conductive block model and four Bi2Te3 TEMs with a heat pipe-assisted model were installed in the condenser section. Heat flows to the condenser section from the evaporator section connected to the exhaust pipe. This novel TEG system with a heat pipe can be placed in any location on an automobile.

  4. Globalization and the trends of medical technology trade in Turkey.

    Science.gov (United States)

    Semin, Semih; Güldal, Dilek; Demiral, Yücel

    2007-05-01

    Medical technology trade is one of the most affected health areas by global regulations in the developing countries. The aim of the study is to examine recent changes in medical technology import and export and their results in Turkey. Data show that the total medical technology imports (MTI) increased from $ 34.6 million to $ 3427.9 million between 1970 and 2003. While MTI constituted 3.6% of total imports in 1970 and 1.3% in 1980, this ratio raised up to 4.9% in 2003. The ratio of MTI in total health expenditures were also increased from 7.6% in 1970 to 31.5% in 2003. Medical technology exports (MTE) have been increased from $ 0.9 million in 1970 to $ 303.2 million in 2003. The ratio of MTE to MTI increased from 2.7% to 13.9% between 1970 and 1990 and decreased after 1990, to 8.8%. Our study implied that the medical technology trade in Turkey has been negatively affected and in some respects differs from some other important industries in the globalization era. Nevertheless, detailed comparative studies in different developing countries such as China, Brazil, Mexico and India, are needed to explore the real state of medical technology trade, use and the effects of globalization on these topics.

  5. Variable conductance heat pipe technology for precise temperature control of the NASA/DDLT transmitter

    Science.gov (United States)

    Vanevenhoven, D. E.; Antoniak, D.

    1989-01-01

    The application of variable conductance heat pipe technology for achieving precise temperature control to + or - 0.1 C for a space-based laser diode transmitter is described. Heat pipe theory of operation and test data are presented along with a discussion of its applicability for NASA's Direct Detection Laser Transceiver (DDLT) program. This design for the DDLT transmitter features a reduction in space radiator size and up to 42 percent reduction in prime power requirements.

  6. Analysis of the Technological Parameters of the Heat Exchanger in the Heating Pipe

    Directory of Open Access Journals (Sweden)

    Knyazev Vladimir

    2017-01-01

    Full Text Available The main purpose of this article is to analyze the selecting of technological parameters for the heat exchanger to improve the heat transfer and reduce the noise during operation in the heating pipe, which is used in the different systems of the planes and helicopters. In result of this study, the best technical parameters are found, considering different variations of deformation cutting heat exchanger pipes.

  7. Advances in Integrated Heat Pipe Technology for Printed Circuit Boards

    NARCIS (Netherlands)

    Wits, Wessel W.; Riele, te Gert Jan

    2010-01-01

    Designing thermal control systems for electronic products has become very challenging due to the continuous miniaturization and increasing performance demands. Two-phase cooling solutions, such as heat pipes or vapor chambers, are increasingly used as they offer higher thermal coefficients for heat

  8. 75 FR 70215 - Environmental Technologies Trade Advisory Committee (ETTAC), Request for Nominations

    Science.gov (United States)

    2010-11-17

    ... international markets; and the identification of priority environmental technologies, products and services...; (3) Environmental Engineering and Consulting Services; (4) Financial Services for the Environmental... International Trade Administration Environmental Technologies Trade Advisory Committee (ETTAC), Request...

  9. Application of heat pipe technology in permanent mold casting of nonferrous alloys

    Science.gov (United States)

    Elalem, Kaled

    The issue of mold cooling is one, which presents a foundry with a dilemma. On the one hand; the use of air for cooling is safe and practical, however, it is not very effective and high cost. On the other hand, water-cooling can be very effective but it raises serious concerns about safety, especially with a metal such as magnesium. An alternative option that is being developed at McGill University uses heat pipe technology to carry out the cooling. The experimental program consisted of designing a permanent mold to produce AZ91E magnesium alloy and A356 aluminum alloy castings with shrinkage defects. Heat pipes were then used to reduce these defects. The heat pipes used in this work are novel and are patent pending. They are referred to as McGill Heat Pipes. Computer modeling was used extensively in designing the mold and the heat pipes. Final designs for the mold and the heat pipes were chosen based on the modeling results. Laboratory tests of the heat pipe were performed before conducting the actual experimental plan. The laboratory testing results verified the excellent performance of the heat pipes as anticipated by the model. An industrial mold made of H13 tool steel was constructed to cast nonferrous alloys. The heat pipes were installed and initial testing and actual industrial trials were conducted. This is the first time where a McGill heat pipe was used in an industrial permanent mold casting process for nonferrous alloys. The effects of cooling using heat pipes on AZ91E and A356 were evaluated using computer modeling and experimental trials. Microstructural analyses were conducted to measure the secondary dendrite arm spacing, SDAS, and the grain size to evaluate the cooling effects on the castings. The modeling and the experimental results agreed quite well. The metallurgical differences between AZ91E and A356 were investigated using modeling and experimental results. Selected results from modeling, laboratory and industrial trials are presented. The

  10. New technology for transmission measurements in process pipes.

    Science.gov (United States)

    Moss, C E; Favalli, A; Goda, J M; Ianakiev, K D; Lombardi, M; McCluskey, C W; Paffett, M T; Swinhoe, M T

    2013-02-01

    Transmission measurements of radiation through process pipes provide a non-intrusive method of determining the amount of product present in the pipes. The product could be a liquid, a slurry, or a gas, which is the most challenging because of the low density. Traditionally, these techniques have used a radioactive source that has to be replaced periodically. We have developed a transmission technique based on an X-ray tube instead of a decaying source. A notch filter is used to provide a narrow transmission line, and a thin silicon transmission detector is used to monitor the X-ray tube output. The transmitted X-rays are measured with a high-throughput gamma spectrometer that consists of a NaI(Tl) detector and an MCA with precise dead time correction. This spectrometer provides stable transmission measurements with an accuracy of a fraction of a percent. The shielding and collimator are made of machinable tungsten for thermal mechanical stability, as well low-cost, low-weight tungsten powder in polymer castings. We describe two methods of measuring the pipe wall thickness without evacuating the pipe. Our particular application was for enrichment monitors for UF(6) in process pipes. Enrichment monitors that are independent of the plant data require two measurements: a transmission measurement to determine the total amount of uranium in the pipe and a measurement of the 186-keV gamma-ray line to determine the amount of (235)U present. The ratio of these values gives the enrichment. Previous designs used a decaying radioactive source such as (57)Co (122 keV, T(½)=272 days) or (109)Cd (22 keV, T(½)=1.2 years). A major effort was required to access and periodically replace these sources in operating plants. In this report, we describe the use of an X-ray tube, which eliminated the source problem, and other innovations. Then we present data from an enrichment monitor that incorporates these innovations.

  11. Preconditions for information and technology infrastructure of trade enterprises forming

    Directory of Open Access Journals (Sweden)

    L.I. Fedulova

    2015-03-01

    Full Text Available The aim of the article. The preconditions for information and technology infrastructure’s evolvement as a resultant factor of the commercial enterprises’ innovative and technological development ensuring within the network economics are determined and substantiated. The results of the analysis. We explored the institutional problems of the topic, such as: the underdevelopment of financing arrangement mechanisms, and the insufficient level of telecommunication infrastructure availability which hinders the development of small and medium-sized trade enterprises. The conceptual model of trade enterprises’ information and technology infrastructure is proposed. The essence of the enterprise’s information technology infrastructure as an aggregation of institutions and analytical resources is defined. They are essential while forming the proper requirements for new technologies development, for the results of market activity research, and for technologies’ (innovations creation, development and commercialization in order to provide the trouble-free and effective functioning technological process, and to form the newest technological base of enterprises. The enterprise’s practical policy measures concern the development and validation of recommendations regarding the structure, type and content of the implementation process of the information technology infrastructure formation within the commercial enterprises. It will ensure (with taking into account possibilities and limitations a strong positive relationship between the specific investment and innovative environment supporting, and the common business interests and will help to provide its competitiveness. An important part is assigned to information and technology infrastructure during the implementation of project approach to trade enterprises management. The basis of this process should be an information (software platform – a key tool for system participants operation. Conclusions

  12. Endogenous asymmetries in technology adoption and international trade

    OpenAIRE

    Ledezma, Ivan

    2010-01-01

    This note explores the interaction between trade integration and asymmetric choices of technology adoption. It seeks to bring micro foundations of Örm heterogeneity into an open-economy model. By so doing, the analysis shows the complementarity between an imperfect competition framework of strategic substitutability and a system of preferences specially well suited for general equilibrium analysis. Preliminary results, still in partial equilibrium, conÖrm standard claims on price reduction an...

  13. 77 FR 75997 - Environmental Technologies Trade Advisory Committee (ETTAC), Request for Nominations from U.S...

    Science.gov (United States)

    2012-12-26

    ... International Trade Administration Environmental Technologies Trade Advisory Committee (ETTAC), Request for...: Solicitation of nominations from U.S. state officials for membership to the Environmental Technologies Trade... development and administration of policies and programs to expand U.S. exports of environmental...

  14. Steel fiber reinforced concrete pipes: part 1: technological analysis of the mechanical behavior

    Directory of Open Access Journals (Sweden)

    A. D. de Figueiredo

    Full Text Available This paper is the first part of an extensive work focusing the technological development of steel fiber reinforced concrete pipes (FRCP. Here is presented and discussed the experimental campaign focusing the test procedure and the mechanical behavior obtained for each of the dosages of fiber used. In the second part ("Steel fiber reinforced concrete pipes. Part 2: Numerical model to simulate the crushing test", the aspects of FRCP numerical modeling are presented and analyzed using the same experimental results in order to be validated. This study was carried out trying to reduce some uncertainties related to FRCP performance and provide a better condition to the use of these components. In this respect, an experimental study was carried out using sewage concrete pipes in full scale as specimens. The diameter of the specimens was 600 mm, and they had a length of 2500 mm. The pipes were reinforced with traditional bars and different contents of steel fibers in order to compare their performance through the crushing test. Two test procedures were used in that sense. In the 1st Series, the diameter displacement was monitored by the use of two LVDTs positioned at both extremities of the pipes. In the 2nd Series, just one LVDT is positioned at the spigot. The results shown a more rigidity response of the pipe during tests when the displacements were measured at the enlarged section of the socket. The fiber reinforcement was very effective, especially when low level of displacement was imposed to the FRCP. At this condition, the steel fibers showed an equivalent performance to superior class pipes made with traditional reinforced. The fiber content of 40 kg/m3 provided a hardening behavior for the FRCP, and could be considered as equivalent to the critical volume in this condition.

  15. INL Reactor Technology Complex Out-of-Service Buried Piping Hazards

    Energy Technology Data Exchange (ETDEWEB)

    Douglas M. Gerstner

    2008-05-01

    Idaho National Laboratory (INL) Reactor Technology Complex (RTC) buried piping and components are being characterized to determine if they should be managed as hazardous waste and subject to the Hazardous Waste Management Act /Resource Conservation and Recovery Act (RCRA). RTC buried piping and components involve both active piping and components from currently operating nuclear facilities, such as the Advanced Test Reactor (ATR), and inactive lines from facilities undergoing D&D activities. The issue exists as to the proper methods to analyze and control hazards associated with D&D activities on facilities collocated with existing operating nuclear facilities, or future collocated facilities being considered with the resurgent nuclear industry. During initial characterization activities, it was determined that residual radioactive material in several inactive RTC lines and components could potentially exceed hazard category (HC) 3 thresholds. In addition, concerns were raised as to how to properly isolate active nuclear facility piping and components from those inactive lines undergoing RCRA actions, and whether the operating facility safety basis could be impacted. Work was stopped, and a potential inadequacy in the safety analysis (PISA) was declared, even though no clear safety basis existed for the inactive, abandoned lines and equipment. An unreviewed safety question (USQ) and an occurrence report resulted. A HC 3 or greater Nuclear Facility/Activity for the buried piping and components was also declared in the occurrence report. A qualitative hazard assessment was developed to evaluate the potential hazards associated with characterization activities, and any potential effects on the safety basis of the collocated RTC operating nuclear facilities. The hazard assessment clearly demonstrated the low hazards associated with the activities based on form and dispersiblity of the radioactive material in the piping and components. The hazard assessment developed

  16. 77 FR 14734 - Environmental Technologies Trade Advisory Committee Public Meeting

    Science.gov (United States)

    2012-03-13

    ... harmonization of global environmental regulations, standards, and certification programs; analysis of existing environmental goods and services data sources; trade liberalization negotiations; development of trade promotion...

  17. Defect Detection in Pipes using a Mobile Laser-Optics Technology and Digital Geometry

    Directory of Open Access Journals (Sweden)

    Tezerjani Abbasali Dehghan

    2015-01-01

    Full Text Available This paper presents a novel method for defect detection in pipes using a mobile laser-optics technology and conventional digital-geometry-based image processing techniques. The laser-optics consists of a laser that projects a line onto the pipe’s surface, and an omnidirectional camera. It can be mounted on a pipe crawling robot for conducting continuous inspection. The projected laser line will be seen as a half-oval in the image. When the laser line passes over defected points, the image moments on the pixel information would change. We propose a B-spline curve fitting on the digitally-convoluted image and a curvature estimation algorithm to detect the defects from the image. Defect sizes of 2 mm or larger can be detected using this method in pipes of up to 24 inch in diameter. The proposed sensor can detect 180-degree (i.e., upper half surface of the pipe. By turning the sensor 180 degrees, one will be able to detect the other half (i.e., lower half of the pipe’s surface. While, 360-degree laser rings are available commercially, but they did not provide the intensity needed for our experimentation. We also propose a fast boundary extraction algorithm for real time detection of defects, where a trace of consecutive images are used to track the image features. Tests were carried out on PVC and steel pipes.

  18. 77 FR 10004 - Nikron Technologies, Inc.; Order of Suspension of Trading

    Science.gov (United States)

    2012-02-21

    ... COMMISSION Nikron Technologies, Inc.; Order of Suspension of Trading February 16, 2012. It appears to the... protection of investors require a suspension of trading in the securities of the above-listed company. Therefore, it is ordered, pursuant to Section 12(k) of the Securities Exchange Act of 1934, that trading...

  19. Situation and trends in trade-supporting information technologies

    Directory of Open Access Journals (Sweden)

    Naděžda Chalupová

    2008-01-01

    Full Text Available During last years information and communication technologies (ICT are developing very dynamically and are penetrating into a lot of various business areas. Its perceiving is progressively changing from something rather sporadic, bringing a competitive advantage on the market, to absolute necessity determining existence or inexistence of certain enterprise among organizations able to compete.The paper maps actual state and evaluates develop needs in area of trade support by ICT devices in czech as well as european society in general, and this on the basis of accessible statistical evidences, publicised studies and various researches outcomes and other conducting sources. It notices problems or lacks in this area and it identifies trends in its solution.Some simple indicators and also complex indicator so-called “e-business index” are monitored for evaluating of actual state of ICT using in sphere of trading and also in order to possibility of successive identification of trends in this area. This summary indicator measures level of ICT using in certain enterprise, and integrates in itself, among others, some from mentioned simple statistics too. It is constructed from four main general subcategories, which are in more detailed way separated onwards.

  20. Wind tunnel data of the analysis of heat pipe and wind catcher technology for the built environment

    Directory of Open Access Journals (Sweden)

    John Kaiser Calautit

    2015-12-01

    Full Text Available The data presented in this article were the basis for the study reported in the research articles entitled ‘Climate responsive behaviour heat pipe technology for enhanced passive airside cooling’ by Chaudhry and Hughes [10] which presents the passive airside cooling capability of heat pipes in response to gradually varying external temperatures and related to the research article “CFD and wind tunnel study of the performance of a uni-directional wind catcher with heat transfer devices” by Calautit and Hughes [1] which compares the ventilation performance of a standard roof mounted wind catcher and wind catcher incorporating the heat pipe technology. Here, we detail the wind tunnel test set-up and inflow conditions and the methodologies for the transient heat pipe experiment and analysis of the integration of heat pipes within the control domain of a wind catcher design.

  1. Wind tunnel data of the analysis of heat pipe and wind catcher technology for the built environment.

    Science.gov (United States)

    Calautit, John Kaiser; Chaudhry, Hassam Nasarullah; Hughes, Ben Richard

    2015-12-01

    The data presented in this article were the basis for the study reported in the research articles entitled 'Climate responsive behaviour heat pipe technology for enhanced passive airside cooling' by Chaudhry and Hughes [10] which presents the passive airside cooling capability of heat pipes in response to gradually varying external temperatures and related to the research article "CFD and wind tunnel study of the performance of a uni-directional wind catcher with heat transfer devices" by Calautit and Hughes [1] which compares the ventilation performance of a standard roof mounted wind catcher and wind catcher incorporating the heat pipe technology. Here, we detail the wind tunnel test set-up and inflow conditions and the methodologies for the transient heat pipe experiment and analysis of the integration of heat pipes within the control domain of a wind catcher design.

  2. Human life support during interplanetary travel and domicile. IV - Mars expedition technology trade study

    Science.gov (United States)

    Rohatgi, Naresh K.; Ferrall, Joseph F.; Seshan, P. K.

    1991-01-01

    Results of trading processing technologies in a closed-loop configuration, in terms of power and weight for the Mars Expedition Mission, are presented. The technologies were traded and compared to a baseline set for functional elements that include CO2 removal, H2O electrolysis, potable H2O cleanup, and hygiene H2O cleanup. These technologies were selected from those being considered for Space Station Freedom and represent only chemical/physical technologies. Attention is given to the technology trade calculation scheme, technology data and selection, the generic modular flow schematic, and life support system specifications.

  3. COST AND PERFORMANCE REPORT: INNOVATIVE ACOUSTIC SENSOR TECHNOLOGIES FOR LEAK DETECTION IN CHALLENGING PIPE TYPES

    Science.gov (United States)

    2016-12-30

    Technologies for Leak Detection in Challenging Pipe Types (Cost and Performance Report) Gary Anguiano Edwin Chiang Martha Araujo Stuart Strum Dr. Victor...N3943013C1256 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Gary Anguiano; Edwin Chiang; Martha Araujo; and Stuart Strum (NAVFAC EXWC...Principal Investigator Scott Waisner U.S. Army Engineer R&D Center 3909 Halls Ferry Rd. Vicksburg, MS 39180 (601) 634-2286 (601) 634

  4. 48 CFR 18.119 - Use of patented technology under the North American Free Trade Agreement.

    Science.gov (United States)

    2010-10-01

    ... under the North American Free Trade Agreement. 18.119 Section 18.119 Federal Acquisition Regulations... Available Acquisition Flexibilities 18.119 Use of patented technology under the North American Free Trade Agreement. Requirement to obtain authorization prior to use of patented technology may be waived in...

  5. Research and Development on Heat Pipes and Related Thermal Engineering Technologies in Japan

    OpenAIRE

    OSHIMA, Koichi

    1989-01-01

    Five advanced heat pipe systems utilizing phase changing heat transfer concept are introduced, which are; a separate type heat pipe heat exchanger, a heat pipe turbine, micro heat pipes, a thermocapillary loop system and mass-produced tubes with inner fin. Inside of these heat pipes, contrary to the conventional heat transfer tubes, evaporation and condensation processes are heavily influenced by the surface tension effect. This effect is also dominant in the heat pipes operating under micro-...

  6. Algorithmic trading technology and strategy research on financial markets

    OpenAIRE

    Barca Linares, Victor

    2017-01-01

    Due to the financial digitalization, the human intervention in many operations both functional and those aimed to make profit in the market are likely to be substituted by algorithms and automated processes. This thesis lay the foundations of algorithmic trading developing a framework to automate the whole process of trading financial assets. Also, it researches trading strategies and the real potential to make profit. The framework consists of separated functional modules to acquire ...

  7. Low Cost High Performance Generator Technology Program. Volume 5. Heat pipe topical, appendices

    Energy Technology Data Exchange (ETDEWEB)

    1975-07-01

    Work performed by Dynatherm Corporation for Teledyne Isotopes during a program entitled ''Heat Pipe Fabrication, Associated Technical Support and Reporting'' is reported. The program was initiated on November 29, 1972; the main objectives were accomplished with the delivery of the heat pipes for the HPG. Life testing of selected heat pipe specimens is continuing to and beyond the present date. The program consisted of the following tasks: Heat Pipe Development of Process Definition; Prototype Heat Pipes for Fin Segment Test; HPG Heat Pipe Fabrication and Testing; Controlled Heat Pipe Life Test; and Heat Pipe Film Coefficient Determination. (TFD)

  8. Manufacturing Technology Research and Appraisal of Large-Diameter SSAW Pipe Applied to the West-East Pipeline Project

    Institute of Scientific and Technical Information of China (English)

    DingXiaojun; YangZhongwen; XiaXianhua; LiXiaobo

    2005-01-01

    This paper introduced the research and development of large-diameter SSAW pipes applied to West-East Pipeline project as well as domestic acicular ferrite pipeline steel of X70 grade. Its microstructure analysis was performed in comparison with the pipeline steel of a foreign steel plant (SPC). This paper introduced the research of welding procedures prior to SSAW pipe making and some new procedures and technologies used for West-East Pipeline Project, and appraised the practical level of Large-diameter SSAW pipe applied to the West-East Pipeline Project.

  9. 48 CFR 3027.208 - Use of patented technology under the North American Free Trade Agreements.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 7 2010-10-01 2010-10-01 false Use of patented technology under the North American Free Trade Agreements. 3027.208 Section 3027.208 Federal Acquisition... American Free Trade Agreements. (f) Contracting officers shall ensure compliance. ...

  10. Enabling participation of SMEs in international trade and production networks: Trade facilitation, trade finance and communication technology

    OpenAIRE

    Duval, Yann; Utoktham, Chorthip

    2014-01-01

    This study aimed at identifying key factors affecting SME participation in direct export and international production networks (IPNs), both globally and in Asia and the Pacific. A global dataset of firm-level data from developing countries was analyzed to identify the main obstacles to establishment and operation of direct and indirect small and medium size exporters. Logit models of SME export and IPN participation revealed the importance of several trade facilitation and related factors. Th...

  11. The New Development of Welded Steel Pipe Technology%焊接钢管技术的新进展

    Institute of Scientific and Technical Information of China (English)

    王晓香

    2011-01-01

    This paper introduced the new development of the international line pipe technology during the recent decadc from several aspects, such as onshore natural gas line pipe, offshore natural gas line pipe, large deformation pipe and ultra-high strength line pipe;the construction and development of the modem information system in welded pipe corporation,and the advancement in production technology and equipment of the high-frequency longitudinal welded pipe, SAWH pipe and SAWL pipe. It suggested that China welded pipe corporations should accelerate the renovation and upgrading the equipment to meet the requirements of the line pipe with high properties, high grade, heavy wall thickness and high precision; updating the NDT equipment thoroughly to ensure it works reliable; to realize aatomatization from the foundation to whole-line through the information renovation, and then enhance competitive strength of China welded pipe corporations.%介绍了近十几年国际管线钢管技术的新进展,包括陆地天然气管道用管、海底天然气管道用管以及大应变钢管和超高强度管线钢管的开发;焊管企业的现代化信息系统的建设及发展;我国高频直缝焊管、螺旋埋弧焊管和直缝埋弧焊管生产技术和装备的技术进步.建议我国焊管企业应加快设备改造和升级,以适应管线管向高性能、高钢级、大壁厚和高尺寸精度发展的要求;对无损探伤设备进行彻底更新,保证其可靠工作;通过信息化改造,实现从基础自动化到全线自动化、信息化的飞跃,进一步增强我国焊管企业的竞争力.

  12. Fundamentals of piping design

    CERN Document Server

    Smith, Peter

    2013-01-01

    Written for the piping engineer and designer in the field, this two-part series helps to fill a void in piping literature,since the Rip Weaver books of the '90s were taken out of print at the advent of the Computer Aid Design(CAD) era. Technology may have changed, however the fundamentals of piping rules still apply in the digitalrepresentation of process piping systems. The Fundamentals of Piping Design is an introduction to the designof piping systems, various processes and the layout of pipe work connecting the major items of equipment forthe new hire, the engineering student and the vetera

  13. Smart Order Routing Technology in the New European Equity Trading Landscape

    Science.gov (United States)

    Ende, Bartholomäus; Gomber, Peter; Lutat, Marco

    In Europe, fragmentation of execution venues has been triggered by increasing competition among markets and a new regulatory environment set up by MiFID. Against this background, IT-based sophisticated order routing systems (Smart Order Routing systems) promise to assure efficiency despite fragmented markets. This raises the question on the relevance and economic value of this technology in European equity trading. Based on order book data for EURO STOXX 50 securities of ten European electronic execution venues, this paper assesses the potential of Smart Order Routing technology by measuring the performance of actual executions in European order book trading relative to a Smart Order Router implementation that detects and accesses best European prices. We identify 6.71% full trade troughs and 6.45% partial trade-throughs in our dataset enabling for significant absolute and relative savings. This indicates that Smart Order Routing technology can provide business value by improving order executions in European cross-tradable equities.

  14. Finite element analysis of fibre augmented steel technology pipe (FAST-PIPEtm)

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Qishi; Yoosef-Ghodsi, Nader [C-FER Technologies, Edmonton, Alberta, (Canada); Salama, Mamdouh [ConocoPhillips Company, Houston, Texas, (United States)

    2010-07-01

    FAST-PipeTM is fabricated from a steel liner hoop-wound with non-impregnated fibreglass strands. The design of this new technology requires developing analytical methods. This paper reported how the finite element program ABAQUS has been used to develop shell models capable of simulating the burst and bending behaviour of FAST-PIPETM. Experimental measurements were performed on 48 and 12 inch pipes to calibrate and to validate the finite element analysis models. The material properties were obtained using coupon tests, and the elastic modulus of the fibre wrap using burst tests. The results showed that the failure of both the burst and bend models was defined as the point where the wrap hoop strain reached a failure strain of about 2%. It is found that the analytical model was accurate based on the burst test results. Also, the moment capacity is not affected by the wrap elasticity modulus value and the type of yield criteria used for the steel liner.

  15. Seismic design technology for breeder reactor structures. Volume 4. Special topics in piping and equipment

    Energy Technology Data Exchange (ETDEWEB)

    Reddy, D.P.

    1983-04-01

    This volume is divided into five chapters: experimental verification of piping systems, analytical verification of piping restraint systems, seismic analysis techniques for piping systems with multisupport input, development of floor spectra from input response spectra, and seismic analysis procedures for in-core components. (DLC)

  16. Seismic design technology for breeder reactor structures. Volume 4. Special topics in piping and equipment

    Energy Technology Data Exchange (ETDEWEB)

    Reddy, D.P.

    1983-04-01

    This volume is divided into five chapters: experimental verification of piping systems, analytical verification of piping restraint systems, seismic analysis techniques for piping systems with multisupport input, development of floor spectra from input response spectra, and seismic analysis procedures for in-core components. (DLC)

  17. Technology Status-quo and Development Direction of PVC Pipes%国内外PVC管技术现状及发展方向

    Institute of Scientific and Technical Information of China (English)

    李成吾; 左继成

    2015-01-01

    The molding technology of PVC pipes, toughening technology of PVC resin used in PVC pipes and assistants of PVC pipes were introduced. According to research and application of PVC pipes at home and abroad, it’s pointed out that, to develop PVC-M and PVC-O pipes is inevitable trend. The production technology of the foreign PVC-M pipes and PVC-O pipes has gradually matured. Compared with foreign, the production technology of the domestic PVC-M pipes is little different, but the production technology of the domestic PVC-O pipes is still in the laboratory research stage. In the next coming years, the domestic PVC plastic pipe industry must vigorously develop PVC-M pipes, and must strengthen the cooperation with scientific research institutes to develop the technology of PVC-O pipes as early as possible.%介绍了PVC管材的成型技术、PVC管材用树脂增韧改性技术以及PVC管材用助剂发展趋势。纵观国内外的研究和应用,发展PVC-M管和PVC-O管是必然趋势。国外PVC-M管和PVC-O管生产技术已渐进成熟,国内PVC-M管生产技术与国外差别不大,但国内PVC-O管生产技术仍停留在实验室研究阶段。今后几年,国内PVC管业应大力发展PVC-M管,应加强与科研院所合作,尽快开发出PVC-O管生产技术。

  18. The trade interchange between Latin America and South Korea: The impact of technological development in the trade integration

    Directory of Open Access Journals (Sweden)

    Humberto Merritt Tapia

    2010-05-01

    Full Text Available Trade relations between Latin America and the Republic of Korea started in the early sixties, but only after the beginning of the new century have become more dynamic, especially for the Asian nation. Behind the Korean export boom is the governmental thrust to science and technology, which has resulted in the production of goods with higher added value. The pattern of trade specialization followed by South Korea has allowed it to become one of the leading exporting nations of high technology goods in the world. On the other hand, Latin American nations have also enjoyed a remarkable growth in exports in the last decade, although their exporting profile contrast with that of Korea because their exports tend to be mainly primary products with low added value and some semi-finished goods . The pattern of specialization in Latin America is explained by its provision of vast natural resources, giving it a comparative advantage in world commodity markets. Unfortunately these advantages have not translated into sustained industrial developments throughout the region. In this context, the purpose of this paper is to illustrate the trade trends between South Korea and Latin America in the last ten years in an attempt to understand the reasons behind the asymmetries in trade flows that have been set in this period. The underlying assumption is that the commercial relationship between both parties depends on the pattern of specialization emerged in recent times and responds to the institutional policies implemented by both South Korea and by Latin American nations. The case of Mexico is highlighted because it is getting historic deficits with the Asian nation.

  19. Experimental measurement, calculation and thermal visualization condenser temperature of cooling device with a heat pipe technology

    Directory of Open Access Journals (Sweden)

    Nemec Patrik

    2017-01-01

    Full Text Available This work deal with evaluation of condenser temperature by experimental measurement, calculation and thermal visualization of cooling device working with a heat pipe technology. The referred device in the article is cooling device capable transfer high heat fluxes from electric elements to the surrounding. One from many things influenced the heat flux amount transferred from electronic elements through the cooling device to the surrounding is condenser construction, its capacity and option of heat removal. The work contain description, working principle and construction of cooling device. Experimental part describe the measuring method and mathematical calculation to condenser temperature evaluation of cooling device depending on the loaded heat of electronic components in range from 250 to 750 W. The mathematical calculation is based on physical phenomena of boiling, condensation and natural convection heat transfer. The results of experimental measurement and mathematical calculation are verified by thermal imagining of device condenser by IR camera.

  20. 77 FR 58424 - China Mobile Media Technology, Inc., Order of Suspension of Trading

    Science.gov (United States)

    2012-09-20

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION China Mobile Media Technology, Inc., Order of Suspension of Trading September 18, 2012. It appears... concerning the securities of China Mobile Media Technology, Inc. because it has not filed any...

  1. Pipe drafting and design

    CERN Document Server

    Parisher, Roy A; Parisher

    2000-01-01

    Pipe designers and drafters provide thousands of piping drawings used in the layout of industrial and other facilities. The layouts must comply with safety codes, government standards, client specifications, budget, and start-up date. Pipe Drafting and Design, Second Edition provides step-by-step instructions to walk pipe designers and drafters and students in Engineering Design Graphics and Engineering Technology through the creation of piping arrangement and isometric drawings using symbols for fittings, flanges, valves, and mechanical equipment. The book is appropriate primarily for pipe

  2. Commercialization of LARC (TradeMark) -SI Polyimide Technology

    Science.gov (United States)

    Bryant, Robert G.

    2011-01-01

    LARC(TradeMark)-SI, Langley Research Center- Soluble Imide, was developed in 1992, with the first patent issuing in 1997, and then subsequent patents issued in 1998 and 2000. Currently, this polymer has been successfully licensed by NASA, and has generated revenues, at the time of this reporting, in excess of $1.4 million. The success of this particular polymer has been due to many factors and many lessons learned to the point that the invention, while important, is the least significant part in the commercialization of this material. Commercial LARC(TradeMark)-SI is a polyimide composed of two molar equivalents of dianhydrides: 4,4 -oxydiphthalic anhydride (ODPA), and 3,3 ,4,4 -biphenyltetracarboxylic dianhydride (BPDA) and 3,4 -oxydianiline (3,4 -ODA) as the diamine. The unique feature of this aromatic polyimide is that it remains soluble after solution imidization in high-boiling, polar aprotic solvents, even at solids contents of 50-percent by weight. However, once isolated and heated above its T(sub g) of 240 C, it becomes insoluble and exhibits high-temperature thermoplastic melt-flow behavior. With these unique structure property characteristics, it was thought this would be an advantage to have an aromatic polyimide that is both solution and melt processable in the imide form. This could potentially lead to lower cost production as it was not as equipment- or labor-intensive as other high-performance polyimide materials that either precipitate or are intractable. This unique combination of properties allowed patents with broad claim coverage and potential commercialization. After the U.S. Patent applications were filed, a Small Business Innovation Research (SBIR) contract was awarded to Imtec, Inc. to develop and supply the polyimide to NASA and the general public. Some examples of demonstration parts made with LARC(TradeMark)-SI ranged from aircraft wire and multilayer printed-circuit boards, to gears, composite panels, supported adhesive tape, composite

  3. High-Technology Trade Pattern Analysis: Its Use and Application for Industry Competitiveness Response and Government Policy Development

    OpenAIRE

    Holbrook, J. A.

    1995-01-01

    The Canadian Advanced Technology Association (CATA) in collaboration with Industry Canada, sponsored a workshop on high-technology trade statistics in Ottawa, 19 October 1995. The purpose of the workshop was to review various approaches to high-technology trade pattern analysis, its use, and application for industrial competitiveness responses and government policy development.

  4. Leak detection, monitoring, and mitigation technology trade study update

    Energy Technology Data Exchange (ETDEWEB)

    HERTZEL, J.S.

    1998-11-10

    This document is a revision and update to the initial report that describes various leak detection, monitoring, and mitigation (LDMM) technologies that can be used to support the retrieval of waste from the single-shell tanks (SST) at the Hanford Site. This revision focuses on the improvements in the technical performance of previously identified and useful technologies, and it introduces new technologies that might prove to be useful.

  5. 48 CFR 27.204-1 - Use of patented technology under the North American Free Trade Agreement.

    Science.gov (United States)

    2010-10-01

    ... under the North American Free Trade Agreement. 27.204-1 Section 27.204-1 Federal Acquisition Regulations... Patents and Copyrights 27.204-1 Use of patented technology under the North American Free Trade Agreement... the patent holder is from a country that is a party to the North American Free Trade Agreement (NAFTA...

  6. Technological Measures for Pipe Tacking When Meeting with Barriers%顶管遇障碍物处理技术

    Institute of Scientific and Technical Information of China (English)

    赖丹云; 谢伟

    2013-01-01

    With the economic development of economy and t-he continuous expanding of building industry, the pipe jacking technology is applied more and more widely in the engineerin-g projects in the case of limits by construction conditions. It is usual y unavoidable to meet with barriers in the tunneling of p-ipe jacking. As a result of the application of pipe tacking in the certainn power plant in Nansha Section, the technological mea-sures for pipe tacking when meeting with barriers are summ-arized for reference.%  随着经济的发展,建筑业在不断发展。在施工条件限制下,顶管技术在工程中应用越来越多。而顶管在掘进过程中,遇障碍物常是不可避免的。现通过南沙区某电厂顶管技术的应用,总结顶管遇障碍物的处理技术,供借鉴。

  7. Nuclear Technology. Course 30: Mechanical Inspection. Module 30-4, Piping Inspection.

    Science.gov (United States)

    Kinne, Bruce

    This fourth in a series of eight modules for a course titled Mechanical Inspection describes the classifications of pipe and fittings, the types of connections used in the installation of piping systems, the typical marking schemes, the preinstallation and installation verifications, and the tests of the completed installation. The module follows…

  8. Anthrax Sampling and Decontamination: Technology Trade-Offs

    Energy Technology Data Exchange (ETDEWEB)

    Price, Phillip N.; Hamachi, Kristina; McWilliams, Jennifer; Sohn, Michael D.

    2008-09-12

    The goal of this project was to answer the following questions concerning response to a future anthrax release (or suspected release) in a building: 1. Based on past experience, what rules of thumb can be determined concerning: (a) the amount of sampling that may be needed to determine the extent of contamination within a given building; (b) what portions of a building should be sampled; (c) the cost per square foot to decontaminate a given type of building using a given method; (d) the time required to prepare for, and perform, decontamination; (e) the effectiveness of a given decontamination method in a given type of building? 2. Based on past experience, what resources will be spent on evaluating the extent of contamination, performing decontamination, and assessing the effectiveness of the decontamination in abuilding of a given type and size? 3. What are the trade-offs between cost, time, and effectiveness for the various sampling plans, sampling methods, and decontamination methods that have been used in the past?

  9. Trends in technology, trade and consumption likely to impact on microbial food safety

    NARCIS (Netherlands)

    Quested, T.E.; Cook, P.E.; Gorris, L.G.M.; Cole, M.B.

    2010-01-01

    Current and potential future trends in technology, consumption and trade of food that may impact on food-borne disease are analysed and the key driving factors identified focusing on the European Union and, to a lesser extent, accounting for the United States and global issues. Understanding of fact

  10. The Impact of Trade Liberalization and Information Technology on India's Manufacturing Sector

    Science.gov (United States)

    Sharma, Shruti

    2013-01-01

    This dissertation is an investigation into how trade liberalization and the adoption of information technology have impacted labour and productivity in India's manufacturing sector respectively. The second chapter analyses the relationship between India's liberalization of tariffs on imported intermediate inputs (henceforth input tariff…

  11. Trends in the marine aquarium trade: the influence of global economics and technology

    Directory of Open Access Journals (Sweden)

    Andrew L. Rhyne

    2012-06-01

    Full Text Available The marine aquarium hobby is a global industry with trade chains on six continents. This industry is undergoing rapid changes in hobbyistpreferences that are in part driven by global economies and technology. In an effort to better assess the past trends and help provide insightinto future growth and demand, we assessed three different trade data sources, the United States-State of Florida Marine Life Landings, CITESstony coral imports, and United States Fish and Wildlife Service’s Law Enforcement Information Systems import data for ‘live rock’. Data forthe past 10 years were analyzed and a clear trend of growth followed by decline was observed with the peak and degree of decline varying forthe different trade categories. While the global economic downturn decreased trade volumes across the board other forces have dramatically affectedthe importation of coral reef products. ‘Live Rock’ and Florida produced ‘live sand’ dramatically decreased two years prior to the globaleconomic recession. The decline of these trade categories coincides with rapid changes in technology used to maintain captive reef aquariumswhich allowed for the advent of the smaller “nano” reef tanks. Importing and exporting countries, CITES and other international governmentbodies, concerned Non-Governmental Organizations and scientist would greatly benefit from a deeper understanding of this industry from aproducer and consumer standpoint in order to better predict how the marine aquarium hobby will be shaped by external forces in the future.

  12. Diverting activities at Sellafield. [Use of remote technology and computer graphics for mock-up of diversion of raffinate feed pipe

    Energy Technology Data Exchange (ETDEWEB)

    1989-12-01

    Remote technology is being used to divert a raffinate feed pipe at the Sellafield fuel reprocessing plant in the UK. Extensive use is being made by the contractor of computer graphics and a full-scale mock-up. (author).

  13. Experimental analysis on a 1:2 scale model of the double light pipe, an innovative technological device for daylight transmission

    Energy Technology Data Exchange (ETDEWEB)

    Baroncini, C.; Boccia, O.; Chella, F.; Zazzini, P. [D.S.S.A.R.R. Faculty of Architecture, University ' ' G. D' Annunzio' ' Viale Pindaro 42, 65127 Pescara (Italy)

    2010-02-15

    In this paper the authors present the double light pipe, an innovative technological device, designed as an evolution of a traditional light pipe, which distributes daylight to underground areas of a building, illuminating, at the same time, the passage areas thanks to a larger collector and a second transparent pipe attached to the first one. Unlike the traditional light pipe, thanks to this double illuminating function it can be located in the middle of a room, despite its encumbrance. In this paper the technological design of the double light pipe is presented and the results of an experimental analysis on a reduced scale (1:2) model are shown. Internal illuminance data over horizontal and vertical work-planes were measured in various sky conditions with or without direct solar radiation. Being this innovative device obtained by a light pipe integrated with a second pipe, it performs like a traditional light pipe for the final room and, at the same time, illuminates the intermediate room giving it uniform and high quality light, particularly indicated for wide plant areas, such as show-rooms or museums. (author)

  14. Assessment of existing and prospective piping technology for district-heating applications

    Energy Technology Data Exchange (ETDEWEB)

    Oliker, I.

    1979-09-01

    Data on design features and operational experience of 40 hot water and steam district-heating networks with an overall heat capacity of 18,000 MWt have been collected, systematized, and analyzed. Piping networks located in Canada, Denmark, Finland, France, Italy, Japan, Netherlands, Sweden, USA, USSR, and West Germany have been analyzed and the data assembled. The data bank and analysis of the operational experience design features of hot water and steam district-heating networks are provided in Sections 2 and 3. In Section 4 the piping installation design is optimized in order to reduce costs wherever possible, without jeopardizing overall system efficiency, reliability or service life, and employing a mixture of typical US and European district-heating practices. The status of prospective non-metallic piping materials is presented in Section 5. The following materials have been investigated: fiberglass reinforced plastic, cross-linked polyethylene, polybutylene, prestressed concrete, polymer concrete, and asbestos-cement piping. (MCW)

  15. Improved collapse resistance of large diameter pipe for deepwater applications using a new impander technology

    Energy Technology Data Exchange (ETDEWEB)

    Reichel, Thilo; Pavlyk, Vitaliy; Beissel, Jochem [Eisenbau Kramer GmbH, Kreutztal-Kredenbach, (Germany); Kyriakides, Stelias; Jang, Wen-Yea [The University of Texas at Austin, Austin, TX, (United States)

    2010-07-01

    The UOE and JCO processes are usually used to design pipes larger than 16 inches. The reduced collapse pressures are caused by the cold forming process used during these processes. This paper investigated a new manufacturing process in which longitudinally welded pipe formed by the JCO process is finished by controlled compression using a new cold sizing press called the Impander. Various rings have been evaluated to measure the dimensional and mechanical properties performed by this new compression process. Dimensional measurements were measured using calipers, micrometers and later a custom scanning system. The results showed that the compression improved the circularity of the pipe. The mechanical properties were measured by bending residual stress tests and a custom numerical model BEPTICO was used for evaluating the collapse pressure. It is found that this new process reduces the residual stresses of the pipe and improves its straightness.

  16. Knowledge Management and Technology in Shahid Rajaei Trading Port

    Directory of Open Access Journals (Sweden)

    Hasan CHaharmahali

    2012-11-01

    Full Text Available For most organizations, knowledge management is a process which aims at replacing conventional business processes. The dilemma is that for most of them, these processes that KM aims at computerizing do not exist. What many fail to comprehend is that knowledge management is more of a business practice than a product. The aim of this study is to examine the place of people and technology in the context of knowledge management. Based on the emerging concept of intellectual capitals where knowledge is perceived as part of the property of a firm, this study will seek to foster an understanding of knowledge management and determine the validity of the notion that knowledge management can replace human intellectuals in organizations. In conducting the study, a qualitative approach was adopted. Data was obtained from both secondary and primary sources. The primary data collection process was undertaken at Rajaei port which is based in the Islamic republic of Iran. The results were subsequently analyzed. For purposes of standardizing the results to make them suitable for comparison, the average auto sum formula was adopted. The results revealed a consistency with much of the literature on the subject to the effect that human resources are the key success factors in the implementation of knowledge management. Knowledge management is not a process for replacing human labour; on the contrary it is dependent on the knowledge residing in people minds. Recommendations were made that Rajaei port managers should begin by creating suitable environments for people to share their tacit knowledge. Further, that they should encourage a knowledge sharing culture in their organization as sustainable knowledge management is more dependent on the ability of employees to share each other’s knowledge than on complex technology.

  17. An Innovative Use of Information & Communication Technology (ICT in Trade Facilitation in India

    Directory of Open Access Journals (Sweden)

    V. S. Rana

    2012-07-01

    Full Text Available Directorate General of Foreign Trade, a department ofMinistry of Commerce and Industry, Govt. of India, isresponsible to formulate, regulate and implement the ForeignTrade Policy through its 36 Port Offices through India.: Thisis the case study of best e-governance project. This project ishighlighted in various e-governance seminars /workshops. Thisis the first govt. project in which ICT was implemented in 1998.It is soon equipped with Digital Signature and Electronic FundTransfer facility. The present study is an example of innovativeuse of Information and communication technology (ICT foron-line delivery. The present services in the DirectorateGeneral of Foreign Trade (DGFT: e-licensing, e-BRC, etendering,e-monitoring, e-meeting e-delivery, e-PRC, egrievancere-addressal etc. The web has been played adynamic role for reengineering and transformation of tradeprocesses for an efficient, cost effective and seamless tradefacilitation.

  18. 75 FR 8113 - Drill Pipe From China

    Science.gov (United States)

    2010-02-23

    ... From the Federal Register Online via the Government Publishing Office INTERNATIONAL TRADE COMMISSION Drill Pipe From China AGENCY: United States International Trade Commission. ACTION: Revised schedule for the subject antidumping and countervailing duty investigations. DATES: Effective...

  19. Implement Obligations Seriously, Enjoy Rights Fully Make Active Countermeasure to the Barrier of Foreign Technology Trade

    Institute of Scientific and Technical Information of China (English)

    Li Changjiang

    2007-01-01

    @@ December 11th, 2006 is the fifth anniversary of China's entry into WTO. Over the past five years, what AQSIQ has done in implementing the obligations and enjoying the rights as a member of WTO? How's the performance? Facing with the current complicated barrier of technology trade worldwide, how will China reply to it? For these questions, reporters have made a special interview with Li Changjiang, Minister of AQSIQ.

  20. Accelerated life tests of specimen heat pipe from Communication Technology Satellite (CTS) project

    Science.gov (United States)

    Tower, L. K.; Kaufman, W. B.

    1977-01-01

    A gas-loaded variable conductance heat pipe of stainless steel with methanol working fluid identical to one now on the CTS satellite was life tested in the laboratory at accelerated conditions for 14 200 hours, equivalent to about 70 000 hours at flight conditions. The noncondensible gas inventory increased about 20 percent over the original charge. The observed gas increase is estimated to increase operating temperature by about 2.2 C, insufficient to harm the electronic gear cooled by the heat pipes in the satellite. Tests of maximum heat input against evaporator elevation agree well with the manufacturer's predictions.

  1. How Do Trading Firms Upgrade Skills and Technology: A Theoretical Model

    Directory of Open Access Journals (Sweden)

    Mojca Lindic

    2015-12-01

    Full Text Available This paper studies the mechanisms of skill upgrading in trading firms by developing a theoretical model that relates the individual’s incentives for acquiring higher skills to the profit-maximizing behaviour of trading firms. The model shows that only the high ability individuals have incentives for acquiring higher skills, as long as they are compensated with higher wages after entering employment. Furthermore, high-productive firms have incentives for investing in higher technology, to employ high-skilled labour, and to engage in international trade. The decisions for technology dress-up and skill upgrading coincide with firm’s decisions to start importing and exporting as the latter requires higher technology and high-skilled labour. Contributions of the paper are twofold: gaining new insights by combining fragments of models on individual’s and firm’s behaviours, and broadening the content of the Melitz (2003 model by introducing importers and controlling for skilled and unskilled labour.

  2. Determinants of technology adoption in the retail trade industry – the case of SMEs in Spain

    Directory of Open Access Journals (Sweden)

    Isidoro Romero

    2015-05-01

    Full Text Available This paper analyzes the determinants of small and medium-sized enterprises’ technology adoption in the retail trade industry. From the theoretical perspective, two types of influential factors are differentiated in this respect: the personal characteristics of the manager/business owner and the business’s organizational characteristics. The empirical analysis is based on a survey of 268 small and medium-sized enterprises in the Spanish retail trade sector. A logistic regression specification is used as an econometric method. The results indicate that both the acquisition of new technical and electronic equipment and the obtaining of new software are affected by the two types of determinants previously pointed out. The manager/business owner’s entrepreneurial motivation and educational background have significant influences on technology adoption in this type of companies. Furthermore, being part of a business group, carrying out training activities for the employees and inter-firm cooperation also positively influence technology adoption in the retail trade industry.

  3. Thermal management through in-board heat pipes manufactured using printed circuit board multilayer technology

    NARCIS (Netherlands)

    Wits, Wessel Willems; Legtenberg, R.; Legtenberg, Rob; Mannak, Jan; van Zalk, Bas; Aripin, A.

    2006-01-01

    A novel, integrated approach in thermal management of electronic products, based on two-phase cooling, is presented. A flat miniature heat pipe, integrated inside the laminated structure of a printed circuit board (PCB) has been developed, based on mainstream PCB fabrication processes. Hot spots on

  4. Water resources protection today: end-of-pipe technology and cleaner production. Case study of the Czech Odra River watershed.

    Science.gov (United States)

    Chour, V

    2001-01-01

    This paper reports on integrated watershed-based protection and sustainable use of water resources to increase the effectiveness of water pollution abatement. The approach includes improvements in end-of-pipe waste-water treatment technologies and implementation of Cleaner Production (CP) principles and policies within the watershed. An example of the general effectiveness of this approach is illustrated by the Czech Odra River Cleaner Production Project where reductions in pollution were achieved with improved industrial production. The CP theme is worth considering as an important challenge for the IWA.

  5. Crack control technology for the X80 large OD 1422 mm line pipes

    Directory of Open Access Journals (Sweden)

    Chunyong Huo

    2016-11-01

    Full Text Available High-grade (API 5L X80 and large-diameter (OD 1422 mm line pipes are used in the Sino–Russian eastern route gas pipeline project for high pressure (12 MPa transmission, and this can significantly increase the transmission capacity and meet China's energy strategic demand. With the increase of steel grade, transmission pressure, pipe diameter and design coefficient, however, ductile crack of line pipes becomes the dominant crack mode, so it is necessary to focus on crack arrest and control study. In this paper, therefore, an intensive study was performed on the Battelle Two-Curve (BTC method which is the major solution to the calculation of arrest toughness, as well as the crack resistance curve and decompression curve. Based on the study, the principle and application range of the BTC method were confirmed. In addition, a series of analysis were conducted on the issues which occurred when the BTC method was applied to high-strength, high-toughness line pipe steel, and the commonly used modified approaches to BTC calculation results were also provided. After the crack control scheme of the X80 large OD 1422 mm line pipes for the Russian Bovanenkovo–Ukhta was reviewed, the BTC calculation results were corrected on the basis of the design parameters of the Sino–Russian eastern routine gas pipeline project, the Charpy V-notched (CVN impact energy which meets the project requirement was finally worked out to be 245 J.

  6. Development of non-destructive diagnosis technology for pipe internal in thermal power plants based on robotics

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Seungho; Kim, Changhoi; Seo, Yongchil; Lee, Sunguk; Jung, Seungho; Jung, Seyoung

    2011-11-15

    The Pipelines of power plants may have tiny crack by corrosion. Pipe safety inspection should be performed periodically and non-periodically to ensure their safety and integrity. It is difficult to inspection pipes inside defect since pipes of power plant is covered thermal insulation material. Normally pipes inspection was performed part of pipes on outside. A mobile robot was developed for the inspection of pipe of 100 mm inside diameter. The robot is adopted screw type drive mechanism in order to move vertical, horizontal pipes inside. The multi-laser and camera module, which is mounted in front of the robot, captures a sequence of 360 degree shapes of the inner surface of a pipe. The 3D inner shape of pipe is reconstructed from a multi laser triangulation techniques for the inspection of pipes.

  7. The Use of DOE Technologies at The World Trade Center Incident: Lessons Learned

    Energy Technology Data Exchange (ETDEWEB)

    McCabe, B.; Kovach, J.; Carpenter, C.; Blair, D.

    2003-02-25

    In response to the attack of the World Trade Center (WTC) on September 11, 2001, the International Union of Operating Engineers (IUOE) National Hazmat Program (OENHP) assembled and deployed a HAZMAT Emergency Management Team (Team) to the disaster site (Site). The response team consisted of a Certified Industrial Hygienist and a rotating team of industrial hygienists, safety professionals, and certified HAZMAT instructors. Through research funded by the Department of Energy (DOE) Office of Environmental Management (EM) and managed by the National Energy Technology Laboratory (NETL), the IUOE conducted human factors assessments on baseline and innovative technologies during real-world conditions and served as an advocate at the WTC disaster site to identify opportunities for the use and evaluation of DOE technologies. From this work, it is clear that opportunities exist for more DOE technologies to be made readily available for use in future emergencies.

  8. Summary of the structure and dynamics of international trade opportunities for new technologies

    Energy Technology Data Exchange (ETDEWEB)

    Watts, R.; Campbell, R.; Smith, S.; Sommers, P.

    1979-09-01

    This paper first provides a nomenclature and symbol system for describing the infrastructure that supports the export (or the import) of goods between countries. While the principal interest is in the export of high-technology goods to early foreign markets, the principles involved also apply to domestic commercialization of new technologies. The nomenclature-symbol system presented provides a schematic method of displaying complete relationships between actors and functions - an interaction matrix. A second aspect of the paper involves sketching out the need for further work to identify the motives, problems, and constraints of each key actor in international trade, particularly regarding new high-technology products. It is believed that the investigation should emphasize initial phases of market development when the behavior of actors does not appear to follow previous applications of microeconomic theory. Understanding this difference between theory and behavior could improve Federal efforts to commercialize new technologies. 18 references.

  9. Impact of information and communication technology (ICT) on international trade in fruit and vegetables: A gravity model approach

    OpenAIRE

    Thiemann, Franziska; Fleming, Euan M.; Mueller, Rolf A.E.

    2012-01-01

    Globalization results when markets become more integrated because of reduced transaction and transport costs. These costs have fallen because of sustained advances in transport technology and, more dramatically, in digital information and communication technology (ICT). Although communication costs tend to be a minor component of total trading costs, reductions in these costs may strongly stimulate international trade. The empirical evidence in support of this effect is, however, scant and it...

  10. Technologies of a trading empire: Dutch introduction of water- and windmills in early-modern Asia, 1650s-1800

    NARCIS (Netherlands)

    Boomgaard, P.

    2008-01-01

    This article deals with the introduction of European wind- and watermill technology by the Dutch in Asia, and it links this development to the gradual shift from a trading empire to a territorial state. The article evaluates how this technology fitted in with Asian technologies, why the Dutch tradin

  11. Women's labor in Bangladesh and Sri Lanka: the trade-off with technology.

    Science.gov (United States)

    Ponniah, G; Reardon, G

    1999-01-01

    This article assesses the impact of technological changes on women's employment in Bangladesh and Sri Lanka. The findings of the research initiated by UN University Institute for New Technologies were used to determine how globalization and technological change alter women's role in the society and the economy in two comparable yet contrasting economies. In Bangladesh and Sri Lanka, the manufacturing and service sectors have grown as a result of the globalization strategies of the two governments. The use of new technologies in work processes has been a function of the countries' participation in global trade, and high levels of foreign direct investment have been the source of much job creation. In both countries, a large proportion of the new industrial workforce consists of women. However, while creating new employment opportunities and improving pay and conditions for some women, jobs tend to be based on flexible, short-term forms of employment with serious health and safety risks. Furthermore, technological advancement like automation increases the number of unemployed "unskilled" workers. Lastly, these two countries seem unaware of the implications of new technology, which makes them vulnerable and weak participants in the global market. Therefore, awareness can be enhanced by a greater exposure to technology through work experience and good quality training.

  12. An evaluation of the role played by remote sensing technology following the World Trade Center attack

    Institute of Scientific and Technical Information of China (English)

    2003-01-01

    Remote sensing technology has been widely recognized for contributing to emergency response efforts after the World Trade Center attack on September 11th, 2001. The need to coordinate activities in the midst of a dense, yet relatively small area, made the combination of imagery and mapped data strategically useful. This paper reviews the role played by aerial photography, satellite imagery, and LIDAR data at Ground Zero. It examines how emergency managers utilized these datasets, and identifies significant problems that were encountered. It goes on to explore additional ways in which imagery could have been used, while presenting recommendations for more effective use in future disasters and Homeland Security applications. To plan adequately for future events, it was important to capture knowledge from individuals who responded to the World Trade Center attack. In recognition, interviews with key emergency management and geographic information system (GIS) personnel provide the basis of this paper. Successful techniques should not be forgotten, or serious problems dismissed. Although widely used after September 11th, it is important to recognize that with better planning, remote sensing and GIS could have played an even greater role. Together with a data acquisition timeline, an expanded discussion of these issues is available in the MCEER/NSF report "Emergency Response in the Wake of the World Trade Center Attack: The Remote Sensing Perspective" (Huyck and Adams, 2002).

  13. A review of existing and emerging digital technologies to combat the global trade in fake medicines.

    Science.gov (United States)

    Mackey, Tim K; Nayyar, Gaurvika

    2017-05-01

    The globalization of the pharmaceutical supply chain has introduced new challenges, chief among them, fighting the international criminal trade in fake medicines. As the manufacture, supply, and distribution of drugs becomes more complex, so does the need for innovative technology-based solutions to protect patients globally. Areas covered: We conducted a multidisciplinary review of the science/health, information technology, computer science, and general academic literature with the aim of identifying cutting-edge existing and emerging 'digital' solutions to combat fake medicines. Our review identified five distinct categories of technology including mobile, radio frequency identification, advanced computational methods, online verification, and blockchain technology. Expert opinion: Digital fake medicine solutions are unifying platforms that integrate different types of anti-counterfeiting technologies as complementary solutions, improve information sharing and data collection, and are designed to overcome existing barriers of adoption and implementation. Investment in this next generation technology is essential to ensure the future security and integrity of the global drug supply chain.

  14. 78 FR 77194 - Golden Elephant Glass Technology, Inc., and Pacific Alliance Corp.; Order of Suspension of Trading

    Science.gov (United States)

    2013-12-20

    ... From the Federal Register Online via the Government Publishing Office SECURITIES AND EXCHANGE COMMISSION Golden Elephant Glass Technology, Inc., and Pacific Alliance Corp.; Order of Suspension of Trading... accurate information concerning the securities of Golden Elephant Glass Technology, Inc. because it has...

  15. FIELD DEMONSTRATION OF INNOVATIVE CONDITION ASSESSMENT TECHNOLOGIES FOR WATER MAINS: ACOUSTIC PIPE WALL ASSESSMENT, INTERNAL INSPECTION, AND EXTERNAL INSPECTIONVOLUME 1: TECHNICAL REPORT AND VOLUME 2: APPENDICES

    Science.gov (United States)

    Nine pipe wall integrity assessment technologies were demonstrated on a 76-year-old, 2,057-ft-long portion of a cement-lined, 24-in. cast iron water main in Louisville, KY. This activity was part of a series of field demonstrations of innovative leak detection/location and condi...

  16. Does Information Technology Provide Competitive Advantage And Improve Performance? An Empirical Study Of Trading Companies In Brazil

    OpenAIRE

    Ruth Clarke; Marcilio Machado

    2006-01-01

    Growing investment in information technology applications creates a need to understand the proper integration of these tools into strategic decision making of the firm. This study discusses the impact of global information and communication technologies on competitiveness and performance of Brazilian trading companies. Using resource based theory as a starting point, we examine how information technology, as an internal resource, can provide competitive advantage and what impact information t...

  17. Trends in technology, trade and consumption likely to impact on microbial food safety.

    Science.gov (United States)

    Quested, T E; Cook, P E; Gorris, L G M; Cole, M B

    2010-05-30

    Current and potential future trends in technology, consumption and trade of food that may impact on food-borne disease are analysed and the key driving factors identified focusing on the European Union and, to a lesser extent, accounting for the United States and global issues. Understanding of factors is developed using system-based methods and their impact is discussed in relation to current events and predictions of future trends. These factors come from a wide range of spheres relevant to food and include political, economic, social, technological, regulatory and environmental drivers. The degree of certainty in assessing the impact of important driving factors is considered in relation to food-borne disease. The most important factors driving an increase in the burden of food-borne disease in the next few decades were found to be the anticipated doubling of the global demand for food and of the international trade in food next to a significantly increased consumption of certain high-value food commodities such as meat and poultry and fresh produce. A less important factor potentially increasing the food-borne disease burden would be the increased demand for convenience foods. Factors that may contribute to a reduction in the food-borne disease burden were identified as the ability of governments around the world to take effective regulatory measures as well as the development and use of new food safety technologies and detection methods. The most important factor in reducing the burden of food-borne disease was identified as our ability to first detect and investigate a food safety issue and then to develop effective control measures. Given the global scale of impact on food safety that current and potentially future trends have, either by potentially increasing or decreasing the food-borne disease burden, it is concluded that a key role is fulfilled by intergovernmental organisations and by international standard setting bodies in coordinating the

  18. A DISCUSSION ON UTILIZATION OF HEAT PIPE AND VAPOUR CHAMBER TECHNOLOGY AS A PRIMARY DEVICE FOR HEAT EXTRACTION FROM PHOTON ABSORBER SURFACES

    Energy Technology Data Exchange (ETDEWEB)

    Suthar, K. J.; Lurie, Alexander M.; Den Hartog, P.

    2016-01-01

    Heat pipes and vapour chambers work on heat exchange phenomena of two-phase flow and are widely used for in-dustrial and commercial applications. These devices offer very high effective thermal conductivities (5,000-200,000 W/m/K) and are adaptable to various sizes, shapes, and ori-entations. Although they have been found to be an excel-lent thermal management solution for laptops, satellites, and many things in-between, heat pipes and vapour cham-bers have yet to be adopted for use at particle accelerator facilities where they offer the possibility of more compact and more efficient means to remove heat from unwanted synchrotron radiation. As with all technologies, there are inherent limitations. Foremost, they are limited by practi-cality to serve as local heat transfer devices; heat transfer over long distances is likely best provided by other means. Heat pipes also introduce unique failure modes which must be considered.

  19. EU's forest fuel resources, energy technology market and international bioenergy trade

    Energy Technology Data Exchange (ETDEWEB)

    Asikainen, A.; Laitila, J.; Anttila, P.; Parikka, H. (The Finnish Forest Research Institute, Joensuu Research Unit, Joensuu (Finland)), email: antti.asikainen@metla.fi; Virkkunen, M.; Leinonen, A.; Heiskanen, V.-P.; Flyktman, M. (VTT Technical Research Centre of Finland, Jyvaeskylae (Finland)); Heinimoe, J. (Lappeenranta Univ. of Technology (Finland)), email: jussi.heinimo@lut.fi

    2009-07-01

    The aim of the project was to provide for Finnish bioenergy technology, machine and appliance manufactures information about forest fuel resources in EU and international bioenergy trade mechanism. The projects results act as an instrument for market potential assessments and provide information to the local energy producer about biomass as an energy source. The possibilities to use forest chips in CHP and heating plants were investigated in three case studies. Case studies include three main tasks: (1) Assessment of forest fuel resources around the CHP or heating plant. (2) Forest fuel procurement cost study and (3) Study on the economics of forest fuel based energy production. The project was carried out as co-operation between Finnish research institutes and companies, and local actors. First case study was carried out at Poland. The second case study country was the Czech Republic and the third case study country was France. (orig.)

  20. Movements of people, ideas, trade, and technology: Toward a peaceful coexistence of India and Pakistan

    Energy Technology Data Exchange (ETDEWEB)

    Ahmed, S. [Asia Foundation, Islamabad (Pakistan); Das, S. [Univ. of Calcutta (India)

    1998-03-01

    The potential exists for peaceful and constructive bilateral relations between India and Pakistan. Domestic developments in both countries, the changing global economic and political environment, and structural changes in regional trading patterns have created new opportunities for replacing traditional Indian and Pakistani perceptions of hostility and suspicion with mutual understanding and trust. This substitution process can be accelerated by increasing people-to-people contact, the free flow of information, and economic and technological cooperation between the two neighbors. Nonmilitary confidence building measures could create conditions for an incremental reduction on tensions between India and Pakistan. A popular consciousness for enhanced bilateral cooperation is growing. This process could be strengthened by identifying and exploring new areas of mutually beneficial cooperation that could pave the way for peace.

  1. Cap-and-trade policy: The influence on investments in carbon dioxide reducing technologies in Indiana

    Science.gov (United States)

    Fahie, Monique

    With most of the energy produced in the state of Indiana coming from coal, the implementation of policy instruments such as cap-and-trade, which is included in the most recent climate bill, will have significant effects. This thesis provides an analysis of the effects that a cap-and-trade policy might have on the investment decisions for alternative technologies in the power plant sector in Indiana. Two economic models of representative coal-fired power plants, Gallagher (600MW) and Rockport (2600MW), are selected and used to evaluate the repowering decision of a plant for several technologies: integrated gasification combined cycle (IGCC), wind farm combined with natural gas combined cycle (NGCC) and supercritical pulverized coal (SCPC). The firm will make its decisions based on the net present value (NPV) of cost estimates for these CO2 reducing technologies, the cost of purchasing offsets and CO 2 allowances. This model is applied to a base case and three American Clean Energy and Security Act of 2009 cases derived from the Energy Information Administration (EIA, 2009b). A sensitivity analysis is done on the discount rate and capital costs. The results of the study indicate that a SCPC plant without carbon capture and storage (CCS) is the least costly compliance option for both plants under all of the cases while retrofitting the existing plant with CCS is the most expensive. Gallagher's three least expensive options across most scenarios were SCPC without CCS, the operation of the existing plant as is and investment in wind plus NGCC. Rockport's three least expensive compliance options across most scenarios were SCPC without CCS, the operation of the existing plant as is and IGCC without CCS. For both plants, when a 12% discount rate is utilized, NPV of costs are generally lower and the operation of the existing plant technology with the aid of allowances and offsets to be in compliance is the cheapest option. If capital costs were to decrease by 30%, a SCPC

  2. Detecting technology of buried pipes and hollow areas by using physical detecting method; Senbu chika deno butsuri tansaho ni yoru maisetsukan, kudo chosa

    Energy Technology Data Exchange (ETDEWEB)

    Nagashima, Y. [NTT Technical Assistance and Support Center, Tokyo (Japan)

    1997-12-01

    No precise records are available on positions of buried pipes which constitute such life lines as electric power, water supply, gas supply, and telecommunications under roads. This record unavailability is causing troubles of damaging these pipes when road excavating constructions are carried out. Therefore, a technology has been demanded, which can measure positions of buried pipes non-destructively from the ground surface. To meet this requirement, development has been performed on a technology to explore pipes buried in depths up to 3 meters. Research results thereon have made achievements today causing a large number of practically usable devices to emerge into existence. Major exploration methods include the electromagnetic wave method and the electromagnetic induction method. This paper describes principles, problems, and exploration application examples of the pulse radar electromagnetic wave method and the electromagnetic induction method, and some considerations thereon. No devices have been completed to date, which can fully satisfy the requirements in exploring buried objects. This is because electromagnetic waves get attenuated sharply under the ground, and because a large number of boundary faces exist underground to reflect electromagnetic waves. It is necessary to continue research and development efforts. 7 refs., 32 refs.

  3. Study of the technology of heat pipe on prevention wildfire of coal gangue hill

    Science.gov (United States)

    Deng, Jun; Li, Bei; Ding, Ximei; Ma, Li

    2017-04-01

    Self-ignitable coal gangue hill (CGH) is one kind of special combustion system, which has the characteristics of low self-ignite point, large heat storage, and easy reignition. The currently industrial fire extinguishing methods, such as inhibiting tendency of coal self-ignition, loessial overburden, and cement grouting, had unsatisfied effects for dispersing the heat out in time. Correspondingly, the CGH will lead reignition more frequently with the passage of time. The high underground temperature of CGH threatens the process of ecological and vegetation construction. Therefore, the elimination of high temperature is a vital issue to be solved urgently for habitat restoration. To achieve the ultimately ecological management goal of self-ignitable CGH - extinguishing the fire completely and never reignited, it is crucial to break the heat accumulation. Heat-pipe (HP) has a character of high efficient heat transfer capacity for eliminating the continuously high temperature in CGH. An experimental system was designed to test the heat transfer performance of HP for preventing and extinguishing the spontaneous combustion of coal gangue. Based on the heat transfer theory, the resistance network of the coal-HP heat removal system was analyzed for studying the cooling effect of HP. The experimental results show that the HP can accelerate the heat release in coal gangue pile. The coal temperature could be controlled at 59.6 ˚ C with HP in 7 h and the highest cooling value is 39.4 % with HP in 150 h, which can effectively cool the temperatures of high temperature zones. As a powerful heat transfer components, as soon as HPs were inserted into the CGH with a reasonable distance, it can completely play a vital role in inhibiting the coal self-ignition process.

  4. 75 FR 877 - Drill Pipe From China

    Science.gov (United States)

    2010-01-06

    ... COMMISSION Drill Pipe From China AGENCY: International Trade Commission. ACTION: Institution of antidumping... States is materially retarded, by reason of imports from China of drill pipe, provided for in subheadings... Government of China. Unless the Department of Commerce extends the time for initiation pursuant to...

  5. FIELD DEMONSTRATION OF EMERGING PIPE WALL INTEGRITY ASSESSMENT TECHNOLOGIES FOR LARGE CAST IRON WATER MAINS

    Science.gov (United States)

    The U.S. Environmental Protection Agency sponsored a large-scale field demonstration of innovative leak detection/location and condition assessment technologies on a 76-year old, 2,500-ft long, cement-lined, 24-in. cast iron water main in Louisville, KY from July through Septembe...

  6. Silicon Heat Pipe Array

    Science.gov (United States)

    Yee, Karl Y.; Ganapathi, Gani B.; Sunada, Eric T.; Bae, Youngsam; Miller, Jennifer R.; Beinsford, Daniel F.

    2013-01-01

    Improved methods of heat dissipation are required for modern, high-power density electronic systems. As increased functionality is progressively compacted into decreasing volumes, this need will be exacerbated. High-performance chip power is predicted to increase monotonically and rapidly with time. Systems utilizing these chips are currently reliant upon decades of old cooling technology. Heat pipes offer a solution to this problem. Heat pipes are passive, self-contained, two-phase heat dissipation devices. Heat conducted into the device through a wick structure converts the working fluid into a vapor, which then releases the heat via condensation after being transported away from the heat source. Heat pipes have high thermal conductivities, are inexpensive, and have been utilized in previous space missions. However, the cylindrical geometry of commercial heat pipes is a poor fit to the planar geometries of microelectronic assemblies, the copper that commercial heat pipes are typically constructed of is a poor CTE (coefficient of thermal expansion) match to the semiconductor die utilized in these assemblies, and the functionality and reliability of heat pipes in general is strongly dependent on the orientation of the assembly with respect to the gravity vector. What is needed is a planar, semiconductor-based heat pipe array that can be used for cooling of generic MCM (multichip module) assemblies that can also function in all orientations. Such a structure would not only have applications in the cooling of space electronics, but would have commercial applications as well (e.g. cooling of microprocessors and high-power laser diodes). This technology is an improvement over existing heat pipe designs due to the finer porosity of the wick, which enhances capillary pumping pressure, resulting in greater effective thermal conductivity and performance in any orientation with respect to the gravity vector. In addition, it is constructed of silicon, and thus is better

  7. Human life support during interplanetary travel and domicile. V - Mars expedition technology trade study for solid waste management

    Science.gov (United States)

    Ferrall, Joe; Rohatgi, Naresh K.; Seshan, P. K.

    1992-01-01

    A model has been developed for NASA to quantitatively compare and select life support systems and technology options. The model consists of a modular, top-down hierarchical breakdown of the life support system into subsystems, and further breakdown of subsystems into functional elements representing individual processing technologies. This paper includes the technology trades for a Mars mission, using solid waste treatment technologies to recover water from selected liquid and solid waste streams. Technologies include freeze drying, thermal drying, wet oxidation, combustion, and supercritical-water oxidation. The use of these technologies does not have any significant advantages with respect to weight; however, significant power penalties are incurred. A benefit is the ability to convert hazardous waste into a useful resource, namely water.

  8. Large-bore pipe decontamination

    Energy Technology Data Exchange (ETDEWEB)

    Ebadian, M.A.

    1998-01-01

    The decontamination and decommissioning (D and D) of 1200 buildings within the US Department of Energy-Office of Environmental Management (DOE-EM) Complex will require the disposition of miles of pipe. The disposition of large-bore pipe, in particular, presents difficulties in the area of decontamination and characterization. The pipe is potentially contaminated internally as well as externally. This situation requires a system capable of decontaminating and characterizing both the inside and outside of the pipe. Current decontamination and characterization systems are not designed for application to this geometry, making the direct disposal of piping systems necessary in many cases. The pipe often creates voids in the disposal cell, which requires the pipe to be cut in half or filled with a grout material. These methods are labor intensive and costly to perform on large volumes of pipe. Direct disposal does not take advantage of recycling, which could provide monetary dividends. To facilitate the decontamination and characterization of large-bore piping and thereby reduce the volume of piping required for disposal, a detailed analysis will be conducted to document the pipe remediation problem set; determine potential technologies to solve this remediation problem set; design and laboratory test potential decontamination and characterization technologies; fabricate a prototype system; provide a cost-benefit analysis of the proposed system; and transfer the technology to industry. This report summarizes the activities performed during fiscal year 1997 and describes the planned activities for fiscal year 1998. Accomplishments for FY97 include the development of the applicable and relevant and appropriate regulations, the screening of decontamination and characterization technologies, and the selection and initial design of the decontamination system.

  9. Study on Small Angle Filament Winding Technology for Rectangular Composite Pipe%小角度缠绕矩形复合材料管的研究

    Institute of Scientific and Technical Information of China (English)

    侯传礼; 王永伟; 娄小杰; 陈家正; 马国峰

    2011-01-01

    In order to study small angle filament winding technology for rectangular composite pipe, the choice of mate- rials, mold design and filament winding patter design are studied in this paper. Design of the mold with a hung string head to improve winding pattern stability in a small angle winding, reducing the material loss; Solution the small angle filament winding pattern stability problem for rectangular composite pipe. The experimental results show that the small angle filament winding technology for rectangular composite pipe is feasible.%主要从材料选择、模具设计、线型设计等方面着手,对小角度缠绕矩形复合材料管成型技术进行研究;设计的带挂线模具封头在小角度缠绕下改善了纤维缠绕线型滑线,减少了材料损耗;解决了小角度缠绕矩形复合材料管的缠绕线型稳定问题。实践结果表明:小角度缠绕矩形复合材料管方法可行。

  10. Heat Pipe Integrated Microsystems

    Energy Technology Data Exchange (ETDEWEB)

    Gass, K.; Robertson, P.J.; Shul, R.; Tigges, C.

    1999-03-30

    The trend in commercial electronics packaging to deliver ever smaller component packaging has enabled the development of new highly integrated modules meeting the demands of the next generation nano satellites. At under ten kilograms, these nano satellites will require both a greater density electronics and a melding of satellite structure and function. Better techniques must be developed to remove the subsequent heat generated by the active components required to-meet future computing requirements. Integration of commercially available electronics must be achieved without the increased costs normally associated with current generation multi chip modules. In this paper we present a method of component integration that uses silicon heat pipe technology and advanced flexible laminate circuit board technology to achieve thermal control and satellite structure. The' electronics/heat pipe stack then becomes an integral component of the spacecraft structure. Thermal management on satellites has always been a problem. The shrinking size of electronics and voltage requirements and the accompanying reduction in power dissipation has helped the situation somewhat. Nevertheless, the demands for increased onboard processing power have resulted in an ever increasing power density within the satellite body. With the introduction of nano satellites, small satellites under ten kilograms and under 1000 cubic inches, the area available on which to place hot components for proper heat dissipation has dwindled dramatically. The resulting satellite has become nearly a solid mass of electronics with nowhere to dissipate heat to space. The silicon heat pipe is attached to an aluminum frame using a thermally conductive epoxy or solder preform. The frame serves three purposes. First, the aluminum frame provides a heat conduction path from the edge of the heat pipe to radiators on the surface of the satellite. Secondly, it serves as an attachment point for extended structures attached

  11. Mr. Pat McDonald, Director of "Key Business Technologies", Department of Trade and Industry, United Kingdom

    CERN Document Server

    Maximilien Brice

    2002-01-01

    Photos 01,02: Mr Pat McDonald, Director of "Key Business Technologies", Department of Trade and Industry, UK (third from left, front) in front of the ATLAS End-Cap Toroid vacuum vessel in the ATLAS assembly hall with, from left to right, Fred Wickens, Chris Jones, Peter Fletcher, Ray Browne, Neil Geddes, Jim Fleming, Anne Trefethen, Jim Wilson, Edwin Towndrow, Sharon Bonfield, Guy Rickett, Ken Smith, Peter Jenni. Photo 03: Mr Pat McDonald, Director of "Key Business Technologies", Department of Trade and Industry, UK (fifth from left) visiting ATLAS assembly hall with, from left to right, Jim Wilson, Peter Jenni, Ken Smith, Edwin Towndrow, Ray Brown, Chris Jones, Neil Geddes, Sharon Bonfield, Anne Trefethen, Jim Fleming, Fred Wickens. Photo 04: Mr Pat McDonald, Director of "Key Business Technologies", Department of Trade and Industry, UK (fourth from right) in front of the ATLAS Barrel Toroid coil casing in the ATLAS assembly hall with, from left to right, Peter Jenni, Jim Wilson, Guy Rickett, Anne Trefethen, ...

  12. Reference system architecture for trade promotion management: leveraging business intelligence technologies and decision support systems

    NARCIS (Netherlands)

    Balmus, Andra Bianca; Iacob, Maria-Eugenia; Sinderen, van Marten; Busschbach, van Murk

    2011-01-01

    Working towards gaining competitive advantage and establishing stable relationships with their supply chain intermediaries, fast moving consumer goods companies are currently focusing their attention on intelligent, goal-based funds investment. Traditional trade promotion management systems (TPMS),

  13. Reference system architecture for trade promotion management: leveraging business intelligence technologies and decision support systems

    NARCIS (Netherlands)

    Balmus, Andra Bianca; Iacob, Maria Eugenia; van Sinderen, Marten J.; van Busschbach, Murk

    Working towards gaining competitive advantage and establishing stable relationships with their supply chain intermediaries, fast moving consumer goods companies are currently focusing their attention on intelligent, goal-based funds investment. Traditional trade promotion management systems (TPMS),

  14. Piping Flexibility

    Science.gov (United States)

    1978-01-01

    A NASA computer program aids Hudson Engineering Corporation, Houston, Texas, in the design and construction of huge petrochemical processing plants like the one shown, which is located at Ju'aymah, Saudi Arabia. The pipes handling the flow of chemicals are subject to a variety of stresses, such as weight and variations in pressure and temperature. Hudson Engineering uses a COSMIC piping flexibility analysis computer program to analyze stresses and unsure the necessary strength and flexibility of the pipes. This program helps the company realize substantial savings in reduced engineering time.

  15. Piping Analysis

    Science.gov (United States)

    1980-01-01

    Burns & McDonnell provide architectural and engineering services in planning, design and construction of a wide range of projects all over the world. In design analysis, company regularly uses COSMIC computer programs. In computer testing piping design of a power plant, company uses Pipe Flexibility Analysis Program (MEL-21) to analyze stresses due to weight, temperature, and pressure found in proposed piping systems. Individual flow rates are put into the computer, then computer calculates the pressure drop existing across each component; if needed, design corrections or adjustments can be made and rechecked.

  16. Heat pipes

    CERN Document Server

    Dunn, Peter D

    1994-01-01

    It is approximately 10 years since the Third Edition of Heat Pipes was published and the text is now established as the standard work on the subject. This new edition has been extensively updated, with revisions to most chapters. The introduction of new working fluids and extended life test data have been taken into account in chapter 3. A number of new types of heat pipes have become popular, and others have proved less effective. This is reflected in the contents of chapter 5. Heat pipes are employed in a wide range of applications, including electronics cooling, diecasting and injection mo

  17. 谈谈剧场技术行业%Discussion of theater technology trade

    Institute of Scientific and Technical Information of China (English)

    俞健

    2003-01-01

    This paper reviews the technological state of domestic and international theaters, discusses the necessary of developing Chinese theater technology and presents the existing conditions to develop theater technology.

  18. 78 FR 21105 - Circular Welded Carbon Steel Pipes and Tubes From Thailand: Preliminary Results of Antidumping...

    Science.gov (United States)

    2013-04-09

    ... Carbon Steel Pipes and Tubes from Thailand: 2011- 2012 Administrative Review,'' dated concurrently with... International Trade Administration Circular Welded Carbon Steel Pipes and Tubes From Thailand: Preliminary Results of Antidumping Duty Administrative Review; 2011- 2012 AGENCY: Import Administration,...

  19. Public assessment of new surveillance-oriented security technologies: Beyond the trade-off between privacy and security.

    Science.gov (United States)

    Pavone, Vincenzo; Esposti, Sara Degli

    2012-07-01

    As surveillance-oriented security technologies (SOSTs) are considered security enhancing but also privacy infringing, citizens are expected to trade part of their privacy for higher security. Drawing from the PRISE project, this study casts some light on how citizens actually assess SOSTs through a combined analysis of focus groups and survey data. First, the outcomes suggest that people did not assess SOSTs in abstract terms but in relation to the specific institutional and social context of implementation. Second, from this embedded viewpoint, citizens either expressed concern about government's surveillance intentions and considered SOSTs mainly as privacy infringing, or trusted political institutions and believed that SOSTs effectively enhanced their security. None of them, however, seemed to trade privacy for security because concerned citizens saw their privacy being infringed without having their security enhanced, whilst trusting citizens saw their security being increased without their privacy being affected.

  20. Demonstration and Validation of Corrosion-Mitigation Technologies for Mechanical Room Utility Piping and Cooling-Tower Pumps

    Science.gov (United States)

    2015-05-01

    ready to install using standard scissors. TBD Manufactured from silicone impregnated woven fiberglass cloth. Fits standard pipe and tubing sizes...this project. Furthermore, less work is involved in cleaning and repainting joints than replacing them, which is now estimated at $6,000,000

  1. 热管技术在化工领域中的应用综述%Overview of Heat Pipe Technology and Its Application in Chemical Industry

    Institute of Scientific and Technical Information of China (English)

    乔桂芝

    2011-01-01

    The sketch of development history, working theory and advantages of heat pipe technology were given, and its application in chemical industry and latest development were discussed.%时热管的发展历史、工作原理及其优点作了简单的阐述,主要介绍了热管技术在化工领城的几个方面的应用情况,并探讨了热管技术最新的发展方向.

  2. Determinants of Trade with Solar Energy Technology Components: Evidence on the Porter Hypothesis?

    OpenAIRE

    Groba, Felix

    2011-01-01

    Studies analyzing renewable energy market development usually investigate additional capacity or investment. Characteristics, roles and determinants of cross border trade with renewable energy system components remain blurred. Environmental regulation and renewable energy policies are important in promoting renewable energy use. Yet, the effect of respective policies on determining exports remains ambiguous. The Porter hypothesis and the lead market literature argue that environmental regulat...

  3. The Arteries of Global Trade: Industrial Restructuring and Technological Change in the Transatlantic Air Cargo Industry

    Science.gov (United States)

    Schwarz, Guido

    2010-01-01

    Air cargo enjoys a special importance: together with maritime transport it is the backbone of global trade and is indispensable for contemporary globalization. Air transport is the only mode that combines worldwide reach with high speed. Nonetheless there is a dearth of geographic research that analyzes the current restructuring affecting the air…

  4. Technology, trade and skills in Brazil: some evidence from micro data

    NARCIS (Netherlands)

    Araújo, B.C.; Bogliacino, F.; Vivarelli, M.

    2011-01-01

    Brazil was characterized by a rapid process of trade liberalization in the 1990s, resulting in a dramatic increase in the volumes of exports and imports since the year 2000. Over the same period, the relative demand for skilled labour has increased substantially. To investigate whether these two

  5. Defense Technology and Trade Initiative: Ashton Carter’s Strategy in India

    Science.gov (United States)

    2016-03-01

    product assembly in India : Rather, it aims at joint development of new technologies through design, engineering, manufacturing, testing, production...Technology Development and Transfer Steps Technology Transferred Transfer Media Research Product Design Documentation & Hardware Laboratory...staunchly advocates treating India like some of the closest U.S. partners in terms of the extent and level of technology transfer, co- develop - ment

  6. Piping Connector

    Science.gov (United States)

    1994-01-01

    In Stennis Space Center's Component Test Facility, piping lines carry rocket propellants and high pressure cryogenic fuels. When the lines are chilled to a pretest temperature of 400 degrees below zero, ordinary piping connectors can leak. Under contract to Stennis, Reflange, Inc. developed the T-Con connector, which included a secondary seal that tolerates severe temperature change. Because of the limited need for the large and expensive T-Con product, Reflange also developed the less costly E-Con, a smaller more compact design with the same technical advantages as the T-Con.

  7. ABSTRACTS WELDEL PIPE AND TUBE

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    ) Application of the New High Temperature Deforming Process in High Frequency Welded Pipe Roller Fabrication Regarding to the failure of GCr15 forming roller and the sizing roller in High Frequency (HF) welded pipe unit, the new process of high temperature deforming heat treatment (forging residual heat quench ) is adopted, this combines the forging and heat treatment, and use the forging residual heat for quench, then the roller to be high temperature tempered, this makes the roller has good strength and toughness, fine structure and uniformly surface hardness. After quench, the inner hole of reduced , and prolongs the performance life. Subject Terms:electric welded pipe unit roller deforming heat treatment life Wang Sanyun(41) Advantage and the Newest Technology of the Pipe Middle Frequency Induction Heat Treatment this article introduces the development status of the middle frequency induction heat treatment technology both home and abroad, illustrates the eight advantages of pipe middle frequency induction heat treatment technology than common fire heat treatment method. The author thinks that the developed 1GBT transistor module middle frequency and frequency conversion power improves the properties of middle frequency induction heat furnace, and suggests to apply this technology in certain area. Subject Terms:pipe heat treatment modulate treatment middle frequency induction heat Huang Qi(48) Driving Gear Reform of Ф325mm Production Line The importedФ325mm pipe production line adopts the turbine driving and forces the lubricate. During the production of Ф114mm pipe, the speed of DC engine reaches 1500 r/min., and the turbine box heated serious, it smokes and leaks out and finally damaged. So , the driving parts is reformed , and the turbine box is replaced by gear-box, the divided two gear transports to the small spiral gear, every 4 stands of the 8 stands in forming section is series-wound. The DC engine with 150kw, 800-1600r/min is adopted for driving. This meet any

  8. The Effect of Defense Spending on the Trade Performance of High-Technology Industries

    Science.gov (United States)

    1992-01-01

    Washington, D.C., 1987. Armington, Paul , "A Theory of Demand for Products Distinguished by Place of Production," IMF Staff Papers, Washington, D.C...Developing Countries, Draft Paper presented at the Annual Meeting of the American Economic Association, December 1990. Helpman, Elhanan, and Paul R... Krugman , Market Structure and Foreign Trade: Increasing Returns, Imrperfect Competition, and the International Economy, MIT Press, 1986. Henry, David

  9. 75 FR 7233 - Drill Pipe From the People's Republic of China: Amendment to Initiation of Antidumping Duty...

    Science.gov (United States)

    2010-02-18

    ... International Trade Administration Drill Pipe From the People's Republic of China: Amendment to Initiation of... (``Department'') is currently conducting an antidumping duty investigation of drill pipe from the People's... investigation of drill pipe from the PRC. See Drill Pipe from the People's Republic of China: Initiation of...

  10. Heat Pipe Systems

    Science.gov (United States)

    1988-01-01

    Solar Fundamentals, Inc.'s hot water system employs space-derived heat pipe technology. It is used by a meat packing plant to heat water for cleaning processing machinery. Unit is complete system with water heater, hot water storage, electrical controls and auxiliary components. Other than fans and a circulating pump, there are no moving parts. System's unique design eliminates problems of balancing, leaking, corroding, and freezing.

  11. Explosive Welding of Pipes

    Science.gov (United States)

    Drennov, Oleg; Drennov, Andrey; Burtseva, Olga

    2013-06-01

    For connection by welding it is suggested to use the explosive welding method. This method is rather new. Nevertheless, it has become commonly used among the technological developments. This method can be advantageous (saving material and physical resources) comparing to its statical analogs (electron-beam welding, argon-arc welding, plasma welding, gas welding, etc.), in particular, in hard-to-reach areas due to their geographic and climatic conditions. Explosive welding of cylindrical surfaces is performed by launching of welded layer along longitudinal axis of construction. During this procedure, it is required to provide reliable resistance against radial convergent strains. The traditional method is application of fillers of pipe cavity, which are dense cylindrical objects having special designs. However, when connecting pipes consecutively in pipelines by explosive welding, removal of the fillers becomes difficult and sometimes impossible. The suggestion is to use water as filler. The principle of non-compressibility of liquid under quasi-dynamic loading is used. In one-dimensional gasdynamic and elastic-plastic calculations we determined non-deformed mass of water (perturbations, which are moving in the axial direction with sound velocity, should not reach the layer end boundaries for 5-7 circulations of shock waves in the radial direction). Linear dimension of the water layer from the zone of pipe coupling along axis in each direction is >= 2R, where R is the internal radius of pipe.

  12. PPOOLEX experiments with two parallel blowdown pipes

    Energy Technology Data Exchange (ETDEWEB)

    Laine, J.; Puustinen, M.; Raesaenen, A. (Lappeenranta Univ. of Technology, Nuclear Safety Research Unit (Finland))

    2011-01-15

    This report summarizes the results of the experiments with two transparent blowdown pipes carried out with the scaled down PPOOLEX test facility designed and constructed at Lappeenranta University of Technology. Steam was blown into the dry well compartment and from there through either one or two vertical transparent blowdown pipes to the condensation pool. Five experiments with one pipe and six with two parallel pipes were carried out. The main purpose of the experiments was to study loads caused by chugging (rapid condensation) while steam is discharged into the condensation pool filled with sub-cooled water. The PPOOLEX test facility is a closed stainless steel vessel divided into two compartments, dry well and wet well. In the experiments the initial temperature of the condensation pool water varied from 12 deg. C to 55 deg. C, the steam flow rate from 40 g/s to 1 300 g/s and the temperature of incoming steam from 120 deg. C to 185 deg. C. In the experiments with only one transparent blowdown pipe chugging phenomenon didn't occur as intensified as in the preceding experiments carried out with a DN200 stainless steel pipe. With the steel blowdown pipe even 10 times higher pressure pulses were registered inside the pipe. Meanwhile, loads registered in the pool didn't indicate significant differences between the steel and polycarbonate pipe experiments. In the experiments with two transparent blowdown pipes, the steamwater interface moved almost synchronously up and down inside both pipes. Chugging was stronger than in the one pipe experiments and even two times higher loads were measured inside the pipes. The loads at the blowdown pipe outlet were approximately the same as in the one pipe cases. Other registered loads around the pool were about 50-100 % higher than with one pipe. The experiments with two parallel blowdown pipes gave contradictory results compared to the earlier studies dealing with chugging loads in case of multiple pipes. Contributing

  13. Construction technology of outdoor large diameter water supply PE pipe%室外大口径 PE 给水管道施工工艺探析

    Institute of Scientific and Technical Information of China (English)

    周保安

    2014-01-01

    Along with the development of science and technology and the enhancement of environmental protection consciousness , the green environmental protection building materials gradually respected around the world .At present, the building materials for pipeline laying in China are green building materials of PE pipe , which has no harmful elements .Combined with the construction practice of Hunnan avenue of longitudinal drainage ditch of Hunnan New District in Shenyang City , aimed at the construction problems of outdoor large -diameter PE pipe, construction process and construction points of the outdoor PE large diameter pipeline was briefly introduced , providing the reference for the similar engineering construction .%随着科学技术的发展以及环保意识的增强,绿色环保型建筑材料逐渐得到世界各国的推崇。目前,我国给水管道铺设采用的建筑材料就是绿色建材PE管。针对室外大口径PE给水管的施工问题,本工艺结合沈阳市浑南新区浑南大道纵向给水管道的施工实例,对室外大口径PE给水管道施工工艺、施工要点进行简单介绍,为以后类似的工程施工提供参考。

  14. Short Term Electric Production Technology Switching Under Carbon Cap and Trade

    Directory of Open Access Journals (Sweden)

    Donald F. Larson

    2012-10-01

    Full Text Available This study examines fuel switching in electricity production following the introduction of the European Union’s Emissions Trading System (EU ETS for greenhouse gas emissions. A short-run restricted cost equation is estimated with carbon permits, high-carbon fuels, and low carbon fuels as variable inputs. Shadow values and substitution elasticities for carbon-free energy resources from nuclear, hydroelectric and renewable sources are imputed from the cost equation. The empirical analysis examines 12 European countries using monthly data on fuel use, prices, and electricity generation during the first phase of the European Emissions Trading System. Despite low emission permit prices, this study finds statistically significant substitution between fossil fuels and carbon free sources of energy for electric power production. Significant substitution between fossil fuels and nuclear energy also was found. Still, while 18 of the 20 substitution elasticities are statistically significant, they are all less than unity, consistent with limited substitution. Overall, these results suggest that prices for carbon emission permits relative to prices for carbon and carbon free sources of energy do matter but that electric power producers have limited operational flexibility in the short-run to satisfy greenhouse gas emission limits.

  15. Implementation of Information Technology in the Free Trade Era for Indonesia

    Science.gov (United States)

    1998-06-01

    provided to managers, is the most effective and up todate to be used as technology grows at a rapid rate. Besides providing a significant return on...applicable technology to commercial, general applications and computer centers were set up as a part of IT to concentrate on the large investment and...increase their IT training budgets just to keep up with technology (Mastering Press Release, 1998). After 50 years of independence, it is important to

  16. 76 FR 6170 - Eternal Technologies Group, Inc., Order of Suspension of Trading

    Science.gov (United States)

    2011-02-03

    ... [Federal Register Volume 76, Number 23 (Thursday, February 3, 2011)] [Notices] [Page 6170] [FR Doc No: 2011-2495] SECURITIES AND EXCHANGE COMMISSION [File No. 500-1] Eternal Technologies Group, Inc... Technologies Group, Inc. because it has not filed any periodic reports since the period ended September...

  17. 论战略贸易理论与中国的科技兴贸%Strategic Trade Theory and Chinas Stimulating Trade by Science and Technology

    Institute of Scientific and Technical Information of China (English)

    杨坤

    2001-01-01

    The theory of strategic trade and strategic trade policy,which are based on the deviation of the realities from the presupposition of the theory of free trade,have increasingly affected the trade and industrial policy in the developed and developing countries since 1970s. China’s entry into the WTO is approaching, and the facts also prove that China must depend on the optimization and promotion in the structure of export trade to obtain the ability of competition in the international market. The revitalization of China’s trade through science and technology has become one of the important path that we must follow.%战略贸易理论与战略性贸易政策产生于现实世界对自由贸易理论前提的背离,自70年代以来对发达国家和发展中国家的贸易和产业政策都产生了较大的影响。中国“入世”已进入倒计时,实践证明只有通过出口贸易结构的优化与升级才能在国际市场中获得竞争力,科技兴贸是我国成为贸易强国的必由之路。

  18. Capsicum--production, technology, chemistry, and quality--Part II. Processed products, standards, world production and trade.

    Science.gov (United States)

    Govindarajan, V S

    1986-01-01

    Capsicums, as a spice, have been known since the beginning of civilization and historically associated with the discovery of the New World. The genus Capsicum (Fam. Solanaceae) provides many varieties and adds color, pungency, and aroma to the cuisines of most of the world. From the pungent chilli, of interest also to pharmaceuticals, to the colorful paprika and the bell capsicums with its remarkable aroma, the genus has been of great interest for its chemistry and physiological action. Pungency as a sensory attribute, its evaluation, structure-activity relationship, and its increasing acceptance and preference by diverse populations of the world are of great interest to many research disciplines. In a comprehensive review of all aspects in four sequential parts, Part I deals with History, Botany, Cultivation, and Primary Processing (CRC Critical Review, Food Science and Nutrition). The Capsicums among the spices are second only to black pepper in trades both in volume and value. The production of the different forms of this spice as ground, specialty seasonings, and as the concentrated oleoresins through technologically advanced processes, proposed newer products, the standard to control quality of the different products, world production, trade, and prospects are reviewed in detail in this, Part II.

  19. Heat pipe turbine vane cooling

    Energy Technology Data Exchange (ETDEWEB)

    Langston, L.; Faghri, A. [Univ. of Connecticut, Storrs, CT (United States)

    1995-10-01

    The applicability of using heat pipe principles to cool gas turbine vanes is addressed in this beginning program. This innovative concept involves fitting out the vane interior as a heat pipe and extending the vane into an adjacent heat sink, thus transferring the vane incident heat transfer through the heat pipe to heat sink. This design provides an extremely high heat transfer rate and an uniform temperature along the vane due to the internal change of phase of the heat pipe working fluid. Furthermore, this technology can also eliminate hot spots at the vane leading and trailing edges and increase the vane life by preventing thermal fatigue cracking. There is also the possibility of requiring no bleed air from the compressor, and therefore eliminating engine performance losses resulting from the diversion of compressor discharge air. Significant improvement in gas turbine performance can be achieved by using heat pipe technology in place of conventional air cooled vanes. A detailed numerical analysis of a heat pipe vane will be made and an experimental model will be designed in the first year of this new program.

  20. Time as a Barrier to International Trade and Economic Growth: The Role of Information and Communication Technology in Reducing Time Cost

    Directory of Open Access Journals (Sweden)

    Nashwa Mostafa Ali Mohamed

    2015-10-01

    Full Text Available The study examines the relationship between reducing time and international trade. Primarily, through the role of information and communication technology, within the trade facilities, in reducing the time required for import and export, and discussing its impact on economic growth. The Two-Stages Least Squares method was used to estimate the econometric model for 16 Arab countries during the period (2005-2011. The study concluded that the information and communication technology leads to time and cost reduction, thereby increasing the value of merchandise exports and imports. In addition, there is a positive relationship between the decline in time and economic growth.

  1. The Application of CNC Technology in Pipe Bending Equipment%多轴数控技术在弯管设备中的应用

    Institute of Scientific and Technical Information of China (English)

    邓钦俊

    2015-01-01

    本文主要针对普及型数控弯管机的技术原理进行研究分析,成功将高性价比的嵌入式多轴数控系统应用于老旧故障弯管机,实现了机器控制系统的升级改造,为车间盘活了闲置设备,提升生产力。%This paper mainly studies and analyzes the technology of general CNC pipe bender. In order to rehab the idle equipment and increase the plant productivity, it successfully uses the multi-axis CNC system which has high per-formance price ratio for broken-downpipe bender. It is carried out to rebuild the control system of machine.

  2. Outdoor construction technology of rigid PVC water supply pipe%硬聚氯乙烯给水管道室外施工技术

    Institute of Scientific and Technical Information of China (English)

    霍强

    2011-01-01

    结合GB 50268-2008给水排水管道工程施工及验收规范,介绍了PVC-U给水管道室外施工技术,分别阐述了管材、管件的运输及堆放,沟槽开挖,土体回填,管道安装等关键工序施工要点,以期指导实践。%Combining with GB 50268-2008 Construction and Acceptance Standard of Water Pipeline Engineering,this paper introduced the outdoor construction technology of PVC-U water supply pipe,respectively elaborated transportation and pile up,grooved excavation,back

  3. Insider trading

    OpenAIRE

    Šatanová, Martina

    2013-01-01

    The thesis is dealing with trading based on nonpublic information (insider trading). It contains development of insider trading regulation and describes specifics of american, czech, japanese and chinese market consodering insider trading. It is focused on regulation, investigation and evidence.

  4. Ultrasonic Guided Wave Technology for Non-invasive Assessment of Corrosion-induced Damage in Piping for Pollution Prevention in DOD Fuel Storage Facilities. Cost and Performance Report. Version 2

    Science.gov (United States)

    2011-09-01

    INTRODUCTION .........................................................................................................3 1.1 BACKGROUND... INTRODUCTION The Oil Pollution Act (OPA) of 1990 sets up operational and maintenance requirements for DOD and civilian fuel/oil storage and transport...5.2.3 Design and layout of technology The ultrasonic guided wave measurement system started with bonding magnetostrictive metal strips to the pipe

  5. The Analysis and Structuring of the Causes Impeding the Introduction of Advanced Technologies for Exchange Grain Trading

    Directory of Open Access Journals (Sweden)

    Vinnychenko Olena V

    2015-03-01

    Full Text Available In the article the main causes impeding the development and introduction of advanced technologies for grain trading on commodity exchanges in Ukraine have been identified and structured. The generalization of existing shortcomings in operation of the domestic commodity exchanges has served the basis for the model, within which there were built: a directed graph of correlations between the above mentioned shortcomings in the operation of exchanges, the matrix of dependency and reachability. The causes have been identified and structured, the main ones being determined, which, in turn, makes it possible to carry out the correct sequence of actions and emphasize the primary issues requiring priority solutions at making management decisions in order to promote the grain exchange market. The suggested approach clearly shows the correlation between the existing causes and sequence of their elimination.

  6. International trade, technological change and evolution of work market; Commercio internazionale, cambiamento tecnologico e mercato del lavoro

    Energy Technology Data Exchange (ETDEWEB)

    Cacciotti, M.

    1999-07-01

    The report estimates the historic series of wages and employment depending on the average unit value of importation prices in the most important european countries, Italy, France and Germany for the years 1988-1996. Results shows that in the traditional sectors, with unskilled employment are negative influenced by international trade, otherwise, in the technological advanced sectors, influenced are to be considered positive. [Italian] Lo studio sottopone a stima le serie storiche dei salari e dell'occupazione in funzione del valore medio unitario dei prezzi alle importazioni per i piu' importanti paesi europei, Italia, Francia, Germania, durante il periodo 1988-1996. I risultati mostrano che per i settori tradizionali, che impiegano manodopera meno qualificata, il commercio internazionel tende ad influenzare negativamente i livelli salariali ed occupazionali, mentre per i settorui tecnologicamente piu' avanzati determina variazioni positive dei salari e dell'occupazioni.

  7. 46 CFR 28.255 - Bilge pumps, bilge piping, and dewatering systems.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Bilge pumps, bilge piping, and dewatering systems. 28... the Aleutian Trade § 28.255 Bilge pumps, bilge piping, and dewatering systems. (a) Each vessel must be equipped with a bilge pump and bilge piping capable of draining any watertight compartment, other...

  8. 78 FR 20615 - Drill Pipe From the People's Republic of China: Preliminary Results of Countervailing Duty...

    Science.gov (United States)

    2013-04-05

    ... International Trade Administration Drill Pipe From the People's Republic of China: Preliminary Results of... review of the countervailing duty (CVD) order on drill pipe from the People's Republic of China (PRC...-4793. Scope of the Order The scope of the order consists of steel drill pipe and steel drill collars...

  9. 76 FR 6762 - Drill Pipe From the People's Republic of China: Amended Final Determination of Critical...

    Science.gov (United States)

    2011-02-08

    ... International Trade Administration Drill Pipe From the People's Republic of China: Amended Final Determination... Federal Register the final determination in the antidumping duty ] investigation of drill pipe from the People's Republic of China (``PRC'').\\1\\ \\1\\ See Drill Pipe From the People's Republic of China: Final...

  10. Heat pipes

    CERN Document Server

    Dunn, Peter D

    1982-01-01

    A comprehensive, up-to-date coverage of the theory, design and manufacture of heat pipes and their applications. This latest edition has been thoroughly revised, up-dated and expanded to give an in-depth coverage of the new developments in the field. Significant new material has been added to all the chapters and the applications section has been totally rewritten to ensure that topical and important applications are appropriately emphasised. The bibliography has been considerably enlarged to incorporate much valuable new information. Thus readers of the previous edition, which has established

  11. The International Trade Policy for Technology Transfers: Legal and Economic Dilemmas on Multilateralism versus Bilateralism

    DEFF Research Database (Denmark)

    Tang, Yi Shin

    In the book, the Researcher addresses the importance of international technology transfers for economic development, as well as the underlying causes for the different institutional arrangements that promote such activity. The work provides a systematic interpretation of the wide range of interests...

  12. A Methodology for Assessing Technology Trade-Offs of Space-Based Radar Concepts.

    Science.gov (United States)

    1985-12-01

    objective reality and intuition as reflected in a decision maker’s judgments. Especially in the case of future space sys- teams , decisions must be based...data base based on their perceptions of the technology issues from their own field of expertise. Networking can provide a means for intradisciplinary

  13. Measuring a Country's Product Ladder and Technology Level based on Trade Flow

    Directory of Open Access Journals (Sweden)

    Jong-il Kim

    2006-06-01

    Full Text Available This study tries to quantify the technology level of products based on the concept of product ladder. While many studies on country technology competitiveness use the aggregate indices such as total factor productivity and revealed comparative advantage, this study estimates the ranking of about 2000 products in product ladder by using SITC 5 digit level export data. Based on the product ladder, this study measures the country and industry ranking and explores the characteristics of the ranking. It provides the international comparison of inter-industry and intra-industry ranking differences in product ladder. The statistical relationships between the ranking in product ladder and the determinants of technology level such as R&D and physical capital investment and wage, confirms that the measured ranking in product ladder could be regarded as an indirect indicator of technology level. The product ladder is applied to the estimation of production function to see the effect of the product differentiation on labor productivity.

  14. Development of bore tools for pipe welding and cutting

    Energy Technology Data Exchange (ETDEWEB)

    Oka, Kiyoshi; Ito, Akira; Takiguchi, Yuji [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-04-01

    In the International Thermonuclear Experimental Reactor (ITER), in-vessel components replacement and maintenance requires that connected cooling pipes be cut and removed beforehand and that new components be installed to which cooling pipes must be rewelded. All welding must be inspected for soundness after completion. These tasks require a new task concept for ensuring shielded areas and access from narrow ports. Thus, it became necessary to develop autonomous locomotion welding and cutting tools for branch and main pipes to weld pipes by in-pipe access; a system was proposed that cut and welded branch and main pipes after passing inside pipe curves, and elemental technologies developed. This paper introduces current development in tools for welding and cutting branch pipes and other tools for welding and cutting the main pipe. (author)

  15. Production inventory model for two-level trade credit financing under the effect of preservation technology and learning in supply chain

    Directory of Open Access Journals (Sweden)

    Sunil Kumar

    2015-12-01

    Full Text Available The present study investigated the inventory model for a retailer under two levels of trade credit to reflect the supply chain management. Supplier offers trade credit period of M to the retailer while in turn retailer provides a trade credit period of N to his/her customers. The supplier is willing to provide the retailer a full trade credit period for payments and the retailer offers the partial trade credit period to his/her customers. Here, selling items are considered as perishable items such as fruits, fresh fishes, gasoline, photographic films, etc. so that its potential worth decreases. It is assumed that decay in potential worth of items can be increased by using preservation technology. The demand is considered as the function of selling price and trade credit. Ordering cost can be reducing due to learning by doing phenomenon. By applying convex fractional programming results, we obtain necessary and sufficient conditions of an optimal solution. Some theorems are developed to determine retailer’s optimal ordering policies and numerical examples are given to illustrate these theorems. In addition, some managerial insights from the numerical examples are also concluded.

  16. 3D camera technology trade-off and breadboard demonstration for space applications

    Science.gov (United States)

    Christy, Julien; Bohn, Preben; Schumann-Olsen, Henrik; Biggio, Andrea; Kowaltschek, Steeve

    2015-06-01

    In previous decades, the vision-based navigation problem based on 2D imaging has been largely studied and applied in space, for rendezvous and docking, as well as rover navigation, or entry, descent and landing. By providing measurement of the third dimension (range), 3D camera technology looks a promising alternative for many applications. Stereoscopic camera is one option to measure the third coordinate, but relies on significant CPU capabilities, which are generally not available for space applications. Scanning LIDAR (LIght detection and ranging) is also an existing solution, but it is relatively large and heavy and the refresh rate, lifetime and reliability are mainly determined by moving parts. 3D time-of-flight (TOF) technology (including flash LIDARs) offers a reliable alternative. By illuminating a whole scene at a time and thus providing a whole array image, there is no need for complex processing nor moving mechanisms, which clearly appears as an advantage for space applications. This paper presents the ongoing study conducted under ESA contract in the field of 3D TOF technology. Its goal is to evaluate the suitability of a 3D TOF camera for space applications, to derive requirements and a preliminary design, and finally to create and test a breadboard model. Performance budget, cost, and a development plan of a versatile spatialized 3D TOF camera are also outputs of the study, in addition to a high-fidelity simulator, allowing further studies by generating representative images and depth maps. To fulfill this project, a European team has been created, gathering Thales Alenia Space, Terma and SINTEF.

  17. The Role of Intellectual Property Rights in Seed Technology Transfer through Trade – Evidence from U.S. Field Crop Seed Exports

    OpenAIRE

    Zhou, Minyu; Sheldon, Ian M.

    2013-01-01

    To investigate whether intellectual property rights (IPRs) promote or hinder seed technology diffusion through trade, we use panel data for 134 countries over the period 1985-2010 to evaluate the impact of a country’s IPRs on its seed imports from the U.S. by estimating a gravity equation using both linear and nonlinear (Poisson) fixed effects methods. In both the static and dynamic models, the variable for WTO member countries that have implemented the TRIPs (Trade-Related Aspects of Intelle...

  18. 关于市政道路管沟开挖支护的施工技术分析%Analysis on excavation support construction technology of municipal road pipe ditch

    Institute of Scientific and Technical Information of China (English)

    韩旭华

    2015-01-01

    Combining with municipal road pipe ditch excavation construction characteristics,such as difficult construction and various safety haz-ards,the paper technologically analyzes excavation support of municipal road pipe ditch,studies construction difficulties at pipe ditch excavation phase,and puts forward solving methods,with a view to adopt rational support measures,to apply higher construction technology,and to guaran-tee pipe ditch excavation stability and safety as well.%结合市政道路的管沟开挖施工难度较大,安全隐患比较多等特点,对市政道路管沟的开挖支护工作进行了技术分析,研究了在管沟开挖阶段可能会遇到的施工难题,并提出了解决的方法,以采取合理的支护措施,使用高等级的施工技术,保证管沟开挖的稳定性与安全性。

  19. Pipe-slipping installation technology applied to the construction of mountain pipeline%滑管安装技术在山区管道施工中的应用

    Institute of Scientific and Technical Information of China (English)

    焦如义; 魏国昌; 尹辉庆; 白世武

    2012-01-01

    山区陡坡地段一直是油气管道施工的难点.详细介绍了滑管式管道施工技术的原理和工艺流程,并以图解的形式重点说明了管段与牵引装置的连结方法以及顺直管沟管段下滑就位、水平弯管沟管段下滑就位过程.通过分析总结该技术在西气东输二线工程中的应用表明,该技术能够解决山区陡坡地段管道施工的难点,缩短施工工期,降低施工成本,并取得良好的经济效益和社会效益.%Pipeline installation in mountain's steep slope has always been a difficult construction process. This paper introduces the principles and process flow of pipe-slipping installation technology, and highlights the connection method between pipe section and traction device and in- place process of slipping down along the pipe sections of straight pipe trench and of horizontal bending pipe trench in illustration way. The results from analysis and overview on the technology application in the 2nd West-to-East Gas Pipeline Project show that this technology can override the barriers in front of the pipeline installation at steep slope in mountain, shortening the construction period and lowering construction costs, thus achieving good economic and social benefits.

  20. Emission Trading

    OpenAIRE

    2009-01-01

    The work concerns Emission Trading Scheme from perspektive of taxes and accounting. I should show problems with emission trading. The work concerns practical example of trading with emission allowance.

  1. Additive Manufacturing of Heat Pipe Wicks Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Wick properties are often the limiting factor in a heat pipe design. Current technology uses conventional sintering of metal powders, screen wick, or grooves to...

  2. Report on Lithium Ion Battery Trade Studies to Support the Exploration Technology Development Program (ETDP) Energy Storage Project

    Science.gov (United States)

    Green, Robert D.; Kissock, Barbara I.; Bennett, William R.

    2010-01-01

    This report documents the results of two system related analyses to support the Exploration Technology Development Program (ETDP) Energy Storage Project. The first study documents a trade study to determine the optimum Li-ion battery cell capacity for the ascent stage battery for the Altair lunar lander being developed under the Constellation Systems program. The battery cell capacity for the Ultra High Energy (UHE) Li-ion battery initially chosen as the target for development was 35 A-hr; this study concludes that a 19.4 A-hr cell capacity would be more optimum from a minimum battery mass perspective. The second study in this report is an assessment of available low temperature Li-ion battery cell performance data to determine whether lowering the operating temperature range of the Li-ion battery, in a rover application, could save overall system mass by eliminating thermal control system mass normally needed to maintain battery temperature within a tighter temperature limit than electronics or other less temperature sensitive components. The preliminary assessment for this second study indicates that the reduction in the thermal control system mass is negated by an increase in battery mass to compensate for the loss in battery capacity due to lower temperature operating conditions.

  3. Pollution control technologies for the treatment of palm oil mill effluent (POME) through end-of-pipe processes.

    Science.gov (United States)

    Wu, Ta Yeong; Mohammad, Abdul Wahab; Jahim, Jamaliah Md; Anuar, Nurina

    2010-07-01

    Palm oil production is one of the major industries in Malaysia and this country ranks one of the largest productions in the world. In Malaysia, the total production of crude palm oil in 2008 was 17,734,441 tonnes. However, the production of this amount of crude palm oil results in even larger amounts of palm oil mill effluent (POME). In the year 2008 alone, at least 44 million tonnes of POME was generated in Malaysia. Currently, the ponding system is the most common treatment method for POME but other processes such as aerobic and anaerobic digestion, physicochemical treatment and membrane filtration may also provide the palm oil industries with possible insights into the improvement of POME treatment processes. Generally, open ponding offers low capital and operating costs but this conventional method is becoming less attractive because the methane produced is wasted to the atmosphere and the system can not be certified for Carbon Emission Reduction trading. On the other hand, anaerobic digestion of POME provides the fastest payback of investment because the treatment enables biogas recovery for heat generation and treated effluent for land application. Lastly, it is proposed herewith that wastewater management based on the promotion of cleaner production and environmentally sound biotechnologies should be prioritized and included as a part of the POME management in Malaysia for attaining sustainable development. This paper thus discusses and compares state-of-the-art POME treatment methods as well as their individual performances.

  4. Permit trading and credit trading

    DEFF Research Database (Denmark)

    Boom, Jan-Tjeerd; R. Dijstra, Bouwe

    This paper compares emissions trading based on a cap on total emissions (permit trading) and on relative standards per unit of output (credit trading). Two types of market structure are considered: perfect competition and Cournot oligopoly. We find that output, abatement costs and the number...... of firms are higher under credit trading. Allowing trade between permit-trading and credit-trading sectors may increase in welfare. With perfect competition, permit trading always leads to higher welfare than credit trading. With imperfect competition, credit trading may outperform permit trading....... Environmental policy can lead to exit, but also to entry of firms. Entry and exit have a profound impact on the performance of the schemes, especially under imperfect competition. We find that it may be impossible to implement certain levels of total industry emissions. Under credit trading several levels...

  5. 袖阀管注浆封闭截水施工技术%Construction Technology of Water Truncation with Sleeve Valve Pipe

    Institute of Scientific and Technical Information of China (English)

    霍小妹

    2011-01-01

    Water gushes occurred during the foundation excavation construction of underground garage service building of some residential building in Taiyuan. After comparing different grouting technologies, grouting with sleeve valve pipe is selected to solidify the ground. Mix proportion and grouting pressure of slurry are analyzed. Problems during construction are introduced in detail such as construction process, equipments selection, holes arrangement and forming, slurry making and grouting. Points for attention are discussed. By the reinforcement measures, the soil properties can reach construction requirements, and the water gushing is controlled.%针对太原市某住宅楼地下车库基坑工程在土方开挖中遇到涌水现象,经注浆技术比较,选用袖阀管注浆法对土体进行固化止水.分析砂土中所注浆液的配合比和注浆压力,对注浆施工流程、机械选用、钻孔布置及钻孔、浆液配制、下管和注浆施工等问题进行详细介绍,对注浆过程注意事项进行探讨.经加固的土体能满足施工要求.

  6. 实体筛管完井技术在氮气钻井中的应用%Application of stuffed screen pipe completion technology in N2 drilled wells

    Institute of Scientific and Technical Information of China (English)

    赵前进

    2009-01-01

    In view of the unique and complicated completion method for gas drilling, and high cost and low reliability of DDV and leakless inflatable screen pipe, the stuffed screen pipe with temporary plugging agent was developed autonomously. With this technology, the screen pipe was plugged with temporary plugging agent to be blank tubing in advance, and then slot or perforate holes on the pipe. After running the screen pipe downhole, the temporary plugging agent will be drilled, and then the formation will communicate with screen pipe. This technology was successfully used in the N_2 drilled well which is Niuqi-1 Well in Santanghu Oil Field, the daily production rate after completion was 2.5×10~4 m~3 which is 6 times more than offset wells. The low cost, low pollution and safer screen pipe designing method is an effective means for N_2 drilled wells completion.%针对气体钻井完井方式单一、完井程序复杂、采用套管阀或非透式可膨胀筛管完井技术成本高、可靠性差等问题,自主研发了利用暂堵剂密封筛管的实体筛管完井技术.该技术先将筛管用暂堵剂密封为盲管后对其进行割缝或打孔处理,然后利用成熟的下尾管完井技术入井后钻掉暂堵剂,最终实现储层与筛管连通.该技术在三塘湖油田牛气1井氮气钻井中得到了成功应用,完钻后日产气量2.5×10~4 m~3,为邻井的6倍以上,实现了低成本、零污染、安全顺利下入筛管的全过程氮气钻完井技术,为降低氮气钻井筛管完井成本提供了一条有效的途径.

  7. New Curbs on Processing Trade for A New Trade Pattern

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ China recently announced a new policy that seeks to rein in the development of processing trade in restricted commodities, in a bid to optimize the country's exporting structure, put strong curbs on the export of "high-energy-consuming, highpolluting and resource-dependent"products, and discourage the export of commodities with low added value and poor technology content, so as to gradually eliminate trade frictions,and promote trade balance to ease tension caused by the too wide trade surplus. The change is instrumental in upgrading the present processing trade system, transforming the pattern of foreign trade growth mode,and promoting the sustainable development of social economy.

  8. Characterization of radioactive contamination inside pipes with the Pipe Explorer{sup trademark} system

    Energy Technology Data Exchange (ETDEWEB)

    Cremer, C.D.; Lowry, W.; Cramer, E. [Science and Engineering Associates, Inc., Albuquerque, NM (United States)] [and others

    1995-10-01

    The U.S. Department of Energy`s nuclear facility decommissioning program needs to characterize radiological contamination inside piping systems before the pipe can be recycled, remediated, or disposed. Historically, this has been attempted using hand held survey instrumentation, surveying only the accessible exterior portions of pipe systems. Difficulty, or inability of measuring threshold surface contamination values, worker exposure, and physical access constraints have limited the effectiveness of this approach. Science and Engineering associates, Inc. under contract with the DOE Morgantown Energy Technology Center has developed and demonstrated the Pipe Explorer{trademark} system, which uses an inverting membrane to transport various characterization sensors into pipes. The basic process involves inverting (turning inside out) a tubular impermeable membrane under air pressure. A characterization sensor is towed down the interior of the pipe by the membrane.

  9. Application of Heat Pipe Technology in Flue Gas Waste Heat Recycling of Organic Heat Carrier Boiler%热管技术在有机热载体锅炉烟气余热回收上的应用

    Institute of Scientific and Technical Information of China (English)

    黄云燕

    2014-01-01

    In recent years, more and more construction units use heat pipe technology to reduce exhaust gas temperature for reducing flue gas heat loss. Industrial managers should attach great importance to the application of heat pipe technology in the flue gas waste heat recycling of organic heat carrier boiler. From energy consumption situation of organic heat carrier boiler, this paper introduces the main purpose of flue gas waste heat recycling of organic heat carrier boiler, carries on a brief introduction for application of heat pipe technology in flue gas waste heat recycling of organic heat carrier boiler.%近些年来,越来越多建设单位采用热管技术降低排烟温度来减少烟气热损失,工业管理者应该高度重视热管技术在有机热载体锅炉烟气余热回收上的应用。本文从有机热载体锅炉能耗状况着手,介绍了有机热载体锅炉烟气余热回收的主要用途,对热管技术在有机热载体锅炉烟气余热回收上的应用做了简单介绍。

  10. Multiple blowdown pipe experiments with the PPOOLEX facility

    Energy Technology Data Exchange (ETDEWEB)

    Puustinen, M.; Laine, J.; Raesaenen, A. (Lappeenranta Univ. of Technology, Nuclear Safety Research Unit (Finland))

    2011-03-15

    This report summarizes the results of the experiments with two steel blowdown pipes carried out with the scaled down PPOOLEX test facility designed and constructed at Lappeenranta University of Technology. Steam was blown into the dry well compartment and from there through the blowdown pipes to the condensation pool. The main purpose of the experiment series was to study chugging phenomena (rapid condensation) while steam is discharged through two parallel blowdown pipes into the condensation pool filled with sub-cooled water. Particularly, the aim was to study if the pipe material (polycarbonate) used in the earlier experiment series with two blowdown pipes has had an effect on the general chugging behaviour and measured loads. In the experiments the initial temperature of the pool water was 20 deg. C. The steam flow rate ranged from 220 g/s to 2 350 g/s and the temperature of incoming steam from 148 deg. C to 207 deg. C. The formation and collapse of steam bubbles and the movement of the steam/water interface inside the pipes was non-synchronous. There could be even a 70 ms time difference between the occurrences of steam bubble collapses at the outlets of the two pipes. There was no clear pattern in which pipe the steam bubble first starts to collapse. Several successive bubbles could collapse first in either pipe but then the order changed for a single or several cycles. High pressure loads were measured inside the blowdown pipes due to rapid condensation of the steam volumes in the pipes and resulting water hammer effects. The loads seemed to be higher in pipe 1 than in pipe 2. An explanation for this could be a possible unequal distribution of steam flow between the two pipes. The pipe material has an effect on the condensation phenomena inside the blowdown pipes. A huge difference in the measured pressure curves inside the pipes could be observed compared to the experiments with the polycarbonate pipes. With the same test conditions the amplitude of the

  11. Reusable pipe flange covers

    Energy Technology Data Exchange (ETDEWEB)

    Holden, James Elliott (Simpsonville, SC); Perez, Julieta (Houston, TX)

    2001-01-01

    A molded, flexible pipe flange cover for temporarily covering a pipe flange and a pipe opening includes a substantially round center portion having a peripheral skirt portion depending from the center portion, the center portion adapted to engage a front side of the pipe flange and to seal the pipe opening. The peripheral skirt portion is formed to include a plurality of circumferentially spaced tabs, wherein free ends of the flexible tabs are formed with respective through passages adapted to receive a drawstring for pulling the tabs together on a back side of the pipe flange.

  12. 76 FR 31940 - Circular Welded Non-Alloy Steel Pipe From Taiwan: Notice of Rescission of Antidumping Duty...

    Science.gov (United States)

    2011-06-02

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From Taiwan: Notice of Rescission of... welded non-alloy steel pipe from Taiwan. The period of review is November 1, 2009, through October 31... circular welded non-alloy steel pipe from Taiwan. See Antidumping or Countervailing Duty Order, Finding,...

  13. 76 FR 49437 - Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2011-08-10

    ... International Trade Administration Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary Results... circular welded non-alloy steel pipe from Mexico. This administrative review covers mandatory respondents... Circumstances Review: Certain Circular Welded Non-Alloy Steel Pipe From Mexico, 75 FR 82374 (December 30,...

  14. 75 FR 77838 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Preliminary Results of the...

    Science.gov (United States)

    2010-12-14

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Preliminary... on circular welded non-alloy steel pipe (``CWP'') from the Republic of Korea (``Korea''). The period... Antidumping Duty Orders: Certain Circular Welded Non-Alloy Steel Pipe from Brazil, the Republic of...

  15. 77 FR 21968 - Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the People's Republic of...

    Science.gov (United States)

    2012-04-12

    ... International Trade Administration Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the... and alloy steel standard, line, and pressure pipe from the People's Republic of China. The period of... countervailing duty order on seamless carbon and alloy steel standard, line, and pressure pipe from the...

  16. 75 FR 78216 - Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary Results of Antidumping Duty...

    Science.gov (United States)

    2010-12-15

    ... International Trade Administration Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary Results... circular welded non-alloy steel pipe from Mexico. This administrative review covers mandatory respondents... Antidumping Duty Changed Circumstances Review: Certain Circular Welded Non-Alloy Steel Pipe and Tube...

  17. 76 FR 36089 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final Results of the Antidumping...

    Science.gov (United States)

    2011-06-21

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final... circular welded non-alloy steel pipe (``CWP'') from the Republic of Korea (``Korea''), covering the period.... SUPPLEMENTARY INFORMATION: Background Following publication of Circular Welded Non-Alloy Steel Pipe From...

  18. 77 FR 73015 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Preliminary Results of...

    Science.gov (United States)

    2012-12-07

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Preliminary... conducting an administrative review of the antidumping duty order on circular welded non-alloy steel pipe... merchandise subject to the order is circular welded non-alloy steel pipe and tube. The product is...

  19. 77 FR 34344 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final Results of the Antidumping...

    Science.gov (United States)

    2012-06-11

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final... circular welded non-alloy steel pipe (``CWP'') from the Republic of Korea (``Korea''). The review covers...: Background Following Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Preliminary Results...

  20. 78 FR 35248 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final Results of Antidumping...

    Science.gov (United States)

    2013-06-12

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Final... order on circular welded non-alloy steel pipe (CWP) from the Republic of Korea (Korea) for the period... has been sold at less than normal value. \\1\\ See Circular Welded Non-Alloy Steel Pipe From...

  1. 78 FR 34342 - Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Final Results and Partial Rescission of...

    Science.gov (United States)

    2013-06-07

    ... International Trade Administration Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Final Results and... duty order on certain circular welded non- alloy steel pipe from Mexico.\\1\\ This administrative review.... \\1\\ See Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary Results and...

  2. 76 FR 774 - Light-Walled Rectangular Pipe and Tube From Mexico: Extension of Time Limit for Final Results of...

    Science.gov (United States)

    2011-01-06

    ... light-walled rectangular pipe and tube from Mexico. See Light-Walled Rectangular Pipe and Tube from... International Trade Administration Light-Walled Rectangular Pipe and Tube From Mexico: Extension of Time Limit...) (Preliminary Results). In the Preliminary Results, we invited parties to comment. See Preliminary Results,...

  3. 77 FR 1915 - Light-Walled Rectangular Pipe and Tube From Mexico; Final Results of Antidumping Duty...

    Science.gov (United States)

    2012-01-12

    ..., 2010. \\1\\ See Light-Walled Rectangular Pipe and Tube from Mexico: Preliminary Results and Partial... International Trade Administration Light-Walled Rectangular Pipe and Tube From Mexico; Final Results of... antidumping duty order on light-walled rectangular pipe and tube from Mexico.\\1\\ This administrative...

  4. 78 FR 1199 - Light-Walled Rectangular Pipe and Tube From Mexico: Final Results of Antidumping Duty...

    Science.gov (United States)

    2013-01-08

    .... We also did not receive a request for a hearing. \\1\\ See Light-Walled Rectangular Pipe and Tube From... intermediate company(ies) involved in the transaction. \\2\\ See Light-Walled Rectangular Pipe and Tube from... International Trade Administration Light-Walled Rectangular Pipe and Tube From Mexico: Final Results...

  5. 75 FR 57456 - Light-Walled Rectangular Pipe and Tube from the People's Republic of China: Final Results of the...

    Science.gov (United States)

    2010-09-21

    ... duty order on light-walled rectangular pipe and tube from the People's Republic of China (``PRC''), covering the period January 20, 2008, through July 31, 2009. See Light-Walled Rectangular Pipe and Tube... International Trade Administration Light-Walled Rectangular Pipe and Tube from the People's Republic of...

  6. 76 FR 44608 - Carbon and Alloy Seamless Standard, Line, and Pressure Pipe From Japan and Romania; Scheduling of...

    Science.gov (United States)

    2011-07-26

    ... COMMISSION Carbon and Alloy Seamless Standard, Line, and Pressure Pipe From Japan and Romania; Scheduling of..., Line, and Pressure Pipe from Japan and Romania AGENCY: United States International Trade Commission... pressure pipe from Japan and Romania would be likely to lead to continuation or recurrence of...

  7. 76 FR 78614 - Welded ASTM A-312 Stainless Steel Pipe From South Korea and Taiwan: Continuation of Antidumping...

    Science.gov (United States)

    2011-12-19

    ... International Trade Administration Welded ASTM A-312 Stainless Steel Pipe From South Korea and Taiwan... welded ASTM A-312 stainless steel pipe from South Korea (Korea) and Taiwan would likely lead to... published the antidumping duty orders on welded ASTM A-312 stainless steel pipe from Korea and Taiwan.\\1\\...

  8. 77 FR 61738 - Circular Welded Carbon Steel Pipes and Tubes From Thailand: Final Results of Antidumping Duty...

    Science.gov (United States)

    2012-10-11

    ... International Trade Administration Circular Welded Carbon Steel Pipes and Tubes From Thailand: Final Results of..., Department of Commerce. SUMMARY: On April 6, 2012, the Department of Commerce (the Department) published the... pipes and tubes from Thailand.\\1\\ This review covers the respondents Pacific Pipe Public Company...

  9. 78 FR 72639 - Non-Malleable Cast Iron Pipe Fittings From the People's Republic of China: Final Results of the...

    Science.gov (United States)

    2013-12-03

    ... International Trade Administration Non-Malleable Cast Iron Pipe Fittings From the People's Republic of China... sunset review of the antidumping duty order on non-malleable cast iron pipe fittings from the People's... expedited (120-day) sunset review of the antidumping duty order on non-malleable cast iron pipe...

  10. 75 FR 75964 - Non-Malleable Cast Iron Pipe Fittings From the People's Republic of China: Extension of Time...

    Science.gov (United States)

    2010-12-07

    ... International Trade Administration Non-Malleable Cast Iron Pipe Fittings From the People's Republic of China... administrative review of the antidumping duty order on non-malleable cast iron pipe fittings from the People's... the administrative review of non-malleable cast iron pipe fittings from the PRC within the time...

  11. 77 FR 31577 - Non-Malleable Cast Iron Pipe Fittings From the People's Republic of China: Final Results of...

    Science.gov (United States)

    2012-05-29

    ... International Trade Administration Non-Malleable Cast Iron Pipe Fittings From the People's Republic of China...'') changed circumstances review with intent to revoke, in part, the AD order on non-malleable cast iron pipe... this particular connector. \\1\\ See Non-Malleable Cast Iron Pipe Fittings From the People's Republic...

  12. 76 FR 66899 - Certain Circular Welded Non-Alloy Steel Pipe From Brazil, Mexico, the Republic of Korea, and...

    Science.gov (United States)

    2011-10-28

    ... pipe from Brazil, Mexico, the Republic of Korea, and Taiwan; and certain circular welded carbon steel... Steel Pipe from Brazil, Mexico, the Republic of Korea, and Taiwan; and Certain Circular Welded Carbon... International Trade Administration Certain Circular Welded Non-Alloy Steel Pipe From Brazil, Mexico,...

  13. 国际贸易技术溢出的机制分析%The Research on Mechanism of International trade's technology spillovers

    Institute of Scientific and Technical Information of China (English)

    李有

    2012-01-01

    深入分析了国际贸易技术溢出的具体机制。在短期,由于较低的机会成本和企业对技术、资本品和中间产品选择范围的扩大,技术引进、资本品和中间产品的进口可以立即带来生产率的增长。在长期,国际贸易主要通过两种类型的学习效应和竞争效应带来生产率的增长。完善的经济体制、国际贸易的规模、人力资本水平、技术差距是影响国际贸易技术溢出效应的主要因素。%This paper studies deeply the specific mechanism of international trade's technology spillovers.In the short term,because the lower opportunity cost and the expansion in either the variety or the quality of intermediate inputs,capital goods and technology,the imports of technology、capital goods and intermediate products may bring the growth of productivity immediately.In the long term,international trade promotes the growth of productivity mainly through the competition effect and two kinds of learning effects.The perfect economic system,the size of international trade,human capital and the technological gap are main influencing factors of international trade's technology spillovers.

  14. Fair Trade

    OpenAIRE

    2007-01-01

    This paper deals with the behavior of fair trade organizations in an oligopolistic setting in which the vertically integrated fair trade firm produces a commodity which is a weak substitute for another commodity. Profit-maximizing oligopolists are vertically disintegrated and produce for both markets and the fair trade firm can charge a premium to consumers due to a "warm glow effect" that depends on the wage paid to fair trade producers. We show that trade integration will unambiguously incr...

  15. Deployable Pipe-Z

    Science.gov (United States)

    Zawidzki, Machi

    2016-10-01

    This paper presents a concept of deployable Pipe-Z (dPZ): a modular structural system which takes advantage of the robustness of rigid-panel mechanism and allows to create free-form links which are also reconfigurable and deployable. The concept presented can be applied for building habitats and infrastructures for human exploration of oceans and outer space. dPZ structures can adapt to changing requirements e.g. mission objectives, crew condition and technological developments. Furthermore, such lightweight and adaptable structural concept can assist in sustainable exploration development. After brief introduction, the concept of Pipe-Z (PZ) is presented. Next, the reconfigurability of PZ is explained and illustrated with continuous and collision-free transition from a PZ forming a Trefoil knot to a Figure-eight knot. The following sections introduce, explain and illustrate the folding mechanism of a single foldable Pipe-Z module (fPZM) and entire dPZ structure. The latter is illustrated with asynchronous (delayed) unfolding of a relatively complex Unknot. Several applications of PZ are suggested, namely for underwater and deep-space and surface habitats, for permanent, but in particular, temporary or emergency passages. As an example, a scenario of a failure of one of the modules of the International Space Station is presented where a rigid structure of 40 fPZMs bypasses the "dead link". A low-fidelity prototype of a 6-module octagonal dPZ is presented; several folding schemes including concentric toric rings are demonstrated. Practical issues of pressurization and packing are briefly discussed.

  16. Ultrasonic Guided Wave Technology for Noninvasive Assessment of Corrosion-induced Damage in Piping for Pollution Prevention in DOD Fuel Storage Facilities

    Science.gov (United States)

    2011-09-01

    1  1.4  IMPLEMENTATION ISSUES .............................................................................. 2  2.0  INTRODUCTION ...3 2.0 INTRODUCTION The Oil Pollution Act (OPA) of 1990 sets up operational and maintenance requirements for DoD and civilian fuel/oil storage and... magnetostrictive metal strips to the pipe surface by room-temperature cured epoxy. This was preceded by the removal of protective coating from the pipe

  17. 75 FR 54594 - North American Free Trade Agreement (NAFTA), Article 1904; Binational Panel Reviews: Notice of...

    Science.gov (United States)

    2010-09-08

    ... International Trade Administration North American Free Trade Agreement (NAFTA), Article 1904; Binational Panel..., International Trade Administration, Department of Commerce. ACTION: Notice of Completion of Panel Review of the International Trade Administration's final determination of Light-Walled Rectangular Pipe and Tube from Mexico...

  18. 76 FR 62364 - North American Free Trade Agreement (NAFTA), Article 1904 Binational Panel Reviews; Notice of...

    Science.gov (United States)

    2011-10-07

    ... International Trade Administration North American Free Trade Agreement (NAFTA), Article 1904 Binational Panel..., International Trade Administration, Department of Commerce. ACTION: Notice of Completion of Panel Review of the International Trade Commission's final determination of Certain Welded Large Diameter Line Pipe from Mexico...

  19. 运用VBA实现EPANET管网拓扑结构的应用%Application of VBA Technology in EPANET Pipe Network Topology Constriction

    Institute of Scientific and Technical Information of China (English)

    袁文麒; 闫卿; 江伟; 黄敏

    2012-01-01

    EPANET作为目前普遍使用的管网建模软件,在管网设计、运行管理方面发挥巨大的作用.然而,从CAD导入管网拓扑结构时由于缺乏管道直径属性,制约着管网建模效率.EXCEL中的VBA功能具有简单易学特点,通过VBA针对EPAENT管网模型拓扑结构开发的管道直径自动赋值程序简明易懂,操作便捷,大大增强了管网建模速度.%As commonly used water supply system modeling software, EPANET has played a major role in pipe network design, operation and management. However, the lack of pipe diameter properties from CAD export pipe network topology, restricts the efficiency of the pipe network modeling. EXCEL software with VBA function is known as easy to learn. A program of automatic assignment procedure for pipe diameter of the water network, which is based on VBA, is given in the present work. The program is easy-to-understand,and greatly enhances the speed of pipe network modeling constriction.

  20. BEAM PIPE IS INSTALLED

    CERN Multimedia

    The installation of the central section of the beam pipe into the heart of the  CMS was completed by 23 April. All the beam pipe elements have been successfully vacuum-tested and the bakeout started.  

  1. A thermal study of pipes with outer transverse fins

    Directory of Open Access Journals (Sweden)

    S. Gil

    2016-10-01

    Full Text Available This paper provides results of thermal investigations on pipes with outer transverse fins produced by placing a strip, being a form of helical spring which functions as a radiator, on the basis pipe. The investigations were carried out at the facility that enables measurements with respect to both natural and forced convection. Performance of the investigated pipes was assessed in relation to a non-finned pipe and a pipe welded with the use of Metal Active Gas (MAG technology. The experiments have shown that the finned pipe welding technology does not markedly affect their thermal efficiency, which has been confirmed by performed model calculations, while the welding technology has a crucial impact on their operating performance.

  2. Technology of preventing drilling hole collapse in soft coal seam by inserting casing in drill pipe%钻杆内下套管防治软煤层钻孔塌孔技术

    Institute of Scientific and Technical Information of China (English)

    李定启; 邓广涛; 李海贵; 王明中

    2015-01-01

    In order to prevent collapse and block of drilling hole in short time when conducting gas extraction in soft coal seam, and improve the gas drainage efficiency of drilling, the equipments and methods of inserting casing in drill pipe for soft coal seam were analyzed and studied.By comparing and analyzing the experimental results in soft coal seam with conventional technology of casing running, original technology of inserting casing in drill pipe and improved technology of inserting casing in drill pipe, it showed that:the length of inserting casing by the improved technology is much greater than that by conventional technology, and the design of drill bit and drilling rob on e-quipment of inserting casing in drill pipe have a greater influence on the drilling and length of inserting casing.In the design, the diameter of drilling bit should be moderate and the smooth joint connection should be adopted on drilling rob.The gas drainage capacity of drilling per hundred meters by this technology is much greater than that by ordinary technology.%为了防止软煤层钻孔在瓦斯抽采过程中短时间内塌孔堵死,提高钻孔瓦斯抽放效率,对软煤层钻孔钻杆内下套管设备和工艺方法进行了分析和研究。通过对比分析常规下套管方式、原有钻杆内下套管方式和改进后钻杆内下套管方式的在软煤层试验,得出以下结论:采用钻杆内下套管设备下套管的长度远大于采用常规钻进方式下套管的长度;钻杆内下套管设备的钻头和钻杆设计对钻进和下套管长度影响较大,设计时钻头直径大小应适中,钻杆应尽量采取内平丝扣连接;采用钻杆内下套管方式的百米钻孔瓦斯抽放量要远大于普通钻进下套管钻孔的百米钻孔瓦斯抽放量。

  3. Light Gauge Stainless Steel Pipes Rolling Thread Connecting Construction Technology%薄壁不锈钢给水管滚压螺纹连接施工技术

    Institute of Scientific and Technical Information of China (English)

    齐铭安; 齐俊彬

    2012-01-01

    In recent years, with the growing popularity of domestic developed light gauge stainless pipes applied in the high-quality drinking water system and hot water system piping installation, the higher requirements of attach- ment procedure have been put forward for light gauge stainless water supply pipeline installation. According to the analysis of the rolling thread connecting construction technology, a set of technology has been determined which includes the pipe necking, the thread rolling, the installation and connection, and hydrostatic test. This research mentions that the solutions to achieve the harmony and unity of function and perception of the quality, in order to improve the quality of light gauge stainless pipe connection.%随着近几年国内发展起来的薄壁不锈钢管在优质饮用水系统、热水系统管道安装工程中的应用越来越普及,对薄壁不锈钢给水管道安装工程的连接工艺提出了更高的要求。本文通过对薄壁不锈钢给水管滚压螺纹连接施工技术的研究和分析,确定了管道的缩口、螺纹滚压、安装连接及水压试验的一套施工技术.从而达到使用功能、观感质量的和谐统一,以提高薄壁不锈钢给水管的连接质量。

  4. Burst limit state reliability for fiber-wrapped steel pipe

    Energy Technology Data Exchange (ETDEWEB)

    Dann, Markus R. [University of Calgary (Canada); Maes, Marc A. [Blade Energy Partners Ltd. (Canada); Salama, Mamdouh M. [ConocoPhillips Company (United States)

    2010-07-01

    In the oil and gas sector, due to the increase in demand, pipeline projects are being developed in remote areas with harsh environments. High strength steel pipelines have been developed but due to their high cost and to low production capacity, the focus is now on dry fiber augmented steel technology pipelines (FAST-Pipe). The aim of this paper is to present a probabilistic mechanical burst limit state for such fiber wrapped pipelines. This model has been developed based on a large strain Cauchy stress formulation and has been used to perform a reliability comparison between an X80 pipe and an X70 FAST-Pipe. Results showed that the FAST-Pipe has more uncertainties than the high strength steel pipe and thus lower factors should be used in their design. This paper provided a probabilistic limit state model which can be used for both steel pipes and FAST-Pipe.

  5. Impedance modelling of pipes

    Science.gov (United States)

    Creasy, M. Austin

    2016-03-01

    Impedance models of pipes can be used to estimate resonant frequencies of standing waves and model acoustic pressure of closed and open ended pipes. Modelling a pipe with impedance methods allows additional variations to the pipe to be included in the overall model as a system. Therefore an actuator can be attached and used to drive the system and the impedance model is able to include the dynamics of the actuator. Exciting the pipe system with a chirp signal allows resonant frequencies to be measured in both the time and frequency domain. The measurements in the time domain are beneficial for introducing undergraduates to resonances without needing an understanding of fast Fourier transforms. This paper also discusses resonant frequencies in open ended pipes and how numerous texts incorrectly approximate the resonant frequencies for this specific pipe system.

  6. Efficient methods of piping cleaning

    Directory of Open Access Journals (Sweden)

    Orlov Vladimir Aleksandrovich

    2014-01-01

    Full Text Available The article contains the analysis of the efficient methods of piping cleaning of water supply and sanitation systems. Special attention is paid to the ice cleaning method, in course of which biological foil and various mineral and organic deposits are removed due to the ice crust buildup on the inner surface of water supply and drainage pipes. These impurities are responsible for the deterioration of the organoleptic properties of the transported drinking water or narrowing cross-section of drainage pipes. The co-authors emphasize that the use of ice compared to other methods of pipe cleaning has a number of advantages due to the relative simplicity and cheapness of the process, economical efficiency and lack of environmental risk. The equipment for performing ice cleaning is presented, its technological options, terms of cleansing operations, as well as the volumes of disposed pollution per unit length of the water supply and drainage pipelines. It is noted that ice cleaning requires careful planning in the process of cooking ice and in the process of its supply in the pipe. There are specific requirements to its quality. In particular, when you clean drinking water system the ice applied should be hygienically clean and meet sanitary requirements.In pilot projects, in particular, quantitative and qualitative analysis of sediments adsorbed by ice is conducted, as well as temperature and the duration of the process. The degree of pollution of the pipeline was estimated by the volume of the remote sediment on 1 km of pipeline. Cleaning pipelines using ice can be considered one of the methods of trenchless technologies, being a significant alternative to traditional methods of cleaning the pipes. The method can be applied in urban pipeline systems of drinking water supply for the diameters of 100—600 mm, and also to diversion collectors. In the world today 450 km of pipelines are subject to ice cleaning method.Ice cleaning method is simple

  7. Secure Mobile Trade Agent

    Directory of Open Access Journals (Sweden)

    Musbah M. Aqe

    2007-01-01

    Full Text Available E-commerce on the internet has the ability to produce millions of transactions and a great number of merchants whose supply merchandise over the internet. As a result, it is difficult for entities to roam over every site on the internet and choose the best merchandise to trade. So, in this paper we introduced a mobile trade agent that visit the sites to gather and evaluate the information from merchant servers and decide to trade goods on behalf of the user. We observed that the combination of public key cryptosystem with distributed object technology make this proposed scheme more secure and efficient than the already existed schemes.

  8. Numerical study of heat pipe application in heat recovery systems

    Energy Technology Data Exchange (ETDEWEB)

    Song Lin; Broadbent, John; McGlen, Ryan [Thermacore Europe, Ashington (United Kingdom)

    2005-01-01

    Heat pipes are two-phase heat transfer devices with extremely high effective thermal conductivity. They can be cylindrical or planar in structure. Heat pipes can be embedded in a metal cooling plate, which is attached to the heat source, and can also be assembled with a fin stack for fluid heat transfer. Due to the high heat transport capacity, heat exchangers with heat pipes have become much smaller than traditional heat exchangers in handling high heat fluxes. With the working fluid in a heat pipe, heat can be absorbed on the evaporator region and transported to the condenser region where the vapour condenses releasing the heat to the cooling media. Heat pipe technology has found increasing applications in enhancing the thermal performance of heat exchangers in microelectronics, energy and other industrial sectors. Utilisation of a heat pipe fin stack in the drying cycle of domestic appliances for heat recovery may lead to a significant energy saving in the domestic sector. However, the design of the heat pipe heat exchanger will meet a number of challenges. This paper presents a design method by using CFD simulation of the dehumidification process with heat pipe heat exchangers. The strategies of simulating the process with heat pipes are presented. The calculated results show that the method can be further used to optimise the design of the heat pipe fin stack. The study suggests that CFD modelling is able to predict thermal performance of the dehumidification solution with heat pipe heat exchangers. (Author)

  9. Temperature characteristic and inhibition effect on insect pest in grain storehouse based on heat pipe technology%基于热管技术的储粮仓温度特征及其抑虫效果

    Institute of Scientific and Technical Information of China (English)

    修方珑; 张岩; 王世清※; 李保华; 姜文利

    2013-01-01

    or mildew occurred during the experimental period. In summer, the average wheat temperature of heat pipe-based grain storehouses was 2 lower℃ than that of traditional storehouses. Heat pipe technology proved to be applicable and efficient in grain storage in temperate and cold regions. With low energy consumption, low cost, high cooling rate, and good insect pest control effect, the storehouse could remarkably maintain grain quality in an environmentally friendly way. Considering the high surface area of grain storehouses in this research, the cooling effect and reserved cold resources could be greater when put into practice in large grain storehouses. This research provides the theoretical foundation and technical support for the practical application of heat pipe technology in large grain storehouses.%  为解决传统储粮方法存在的高能耗、害虫多、易污染的问题,基于热管技术,该文设计开发了一座利用自然冷源蓄冷的储粮仓,其由储粮仓、热管模组、温度监测系统等组成,通过1年试验(2011年12月16日至2012年11月1日)研究了储粮仓内粮食温度变化及对害虫的抑制效果,结果表明:热管模组在19 d内将粮食温度降低到0,最低可降至-3.17℃;热管储粮试验仓蓄冷量为50.95 MJ,降温速度达到了0.28℃/d,分别较对照仓高出31.62%和47.37%,因此试验仓降温速度更快,蓄冷量更大。夏季试验仓虫害发生时间延迟,害虫数量明显减少,抑虫效果明显。此外,试验周期内无任何能耗,小麦并未出现结露或霉变等现象。该研究为热管技术在大型粮库中的应用提供依据和技术支持。

  10. Inventing a paradigm of piped water: the evolution of urban water concessions on the European continent, 1800-1970

    NARCIS (Netherlands)

    Braadbaart, O.D.

    2007-01-01

    European foundries master the art of mass-producing cast iron pipes in the early 1800s (Cast Iron Soil Pipe Institute 2006:1). Slow sand filters, buried pipes with bell and spigot joints, steam powered pumps, and water towers make for a universally applicable technology for urban water supply. Piped

  11. Technology for Sinking the Ultra-long-weight Steel Pipe Piles of "HaiLi 801" Whole Rotating Piping Ship%全旋转打桩船"海力801"超长超重钢管桩沉桩技术

    Institute of Scientific and Technical Information of China (English)

    王永东; 杨胜龙

    2011-01-01

    结合象山港公路大桥的钢管桩桩基施工,介绍"海力801"全旋转打桩船采用S-280型双作用液压锤和GPS卫星定位技术,沉放超长、超重、大直径钢管斜桩的施工技术.施工效果良好,可在大型海上、跨江桥梁工程和港口工程中推广应用.%Combining the construction of the steel pipe pile foundation of Xiangshan Port Highway Bridge, this paper introduces the “HaiLi 801” whole rotating piling ship adopts S - 280 type dual acting hydraulic hammer and GPS satellite positioning technology, and the construction technology of sinking ultra-long-weight and large diameter steel pipe piles.The construction has good effect can be applied for large marine project, river-crossing bridge project and harbor engineering.

  12. Ultrasonic Guided Wave Technology for Non-Invasive Assessment of Corrosion-Induced Damage in Piping for Pollution Prevention in DOD Fuel Storage Facilities

    Science.gov (United States)

    2011-08-01

    put on in a three step process per manufacturer’s recommendation. A relatively thin coat of bitumen mastic was applied to the entire pipe surface...Figure. Summary of Ultrasonic Guided Wave Results The Signal peak height from each data trace was extracted and then plotted versus percent CSAL in

  13. Four-point bending JCOC process:A new technology for forming longitudinally submerged arc welding pipe%大型直缝焊管四点弯曲JCOC成形新工艺

    Institute of Scientific and Technical Information of China (English)

    赵军; 孙红磊; 宋晓抗; 马瑞

    2012-01-01

    在分析大型直缝焊管四点弯曲JCO成形力学原理的基础上,对缩径矫圆的理论和实验进行研究,提出了四点弯曲JCOC成形新工艺.该工艺具有成形道次少、生产效率高、无需预弯边、残余应力小、柔性程度高、成形质量好和防止缺陷扩大等成形特点和优势.按照相似性原理,采用JCOC成形新工艺,以X80钢级φ1219mm×22mm钢管为原型,同比例缩小模具和管件尺寸,制成缩径矫圆后φ260.4mm× 4.7mm管坯.该批管坯的椭圆度最大值≤0.5%,满足生产技术要求.JCOC成形新工艺具有良好的市场推广和工程应用价值.%Based on the analysis of the mechanical principles of the "four-point bending JCO (J-Forming C-Forming O-Forming)" process for LSAW (longitudinal submerged ard welding) pipe as well as theoretical and experimental researches on "compression to make round", this paper presented a new technology called the "four-point bending JCOC (J-Forming C-Forming O-Forming and Compression to make round) process". The advantages of the new technology included fewer steps of formation, higher pro-ductivity, the dispensing with crimping process, less residual stress, higher flexibility, better forming quality and preventing the expansion of flaws. Scaling down the mold and pipe dimensions in accordance with the principle of similarity, this experiment used the new technology to make φ260. 4mm× 4. 7mm pipe samples from φ1219mm× 22mm of X80 steel pipe. The samples made by the new process met production requirements with the ovality up to 0. 5%. This indicated that the new technology had good marketing and engineering applications.

  14. Energy trading; Trading de l'energie

    Energy Technology Data Exchange (ETDEWEB)

    Glachant, J.M. [Paris-1 Univ., 75 (France); Kimman, R.; Schweickardt, H.E. [and others

    2001-05-01

    This document brings together 18 testimonies of experts about energy trading: 1 - the energy trading experience on European deregulated markets: structure of deregulated energy markets in Europe, case study: a two years experience of a power exchange in western Europe, case study: European energy exchanges (experience of spot and future trading), case study: risk management on energy deregulated markets; 2 - the trading activity environment and realities in France: the French electrical law and the purchase for resale, experience feedback: status after 3 months of trading in France (the first experience of a French producer), the access to the power transportation network, which legal constraints for trading in France, the access of eligible clients to the French power market, conditions of implementation of a power exchange market in France, which real trading possibilities in France for producers and self-producers in the legal frame, case study: the role of trading in the company (main part or link to process), convergence of gas and electricity markets, gas-electricity trading: which pricing models; 3 - risk management and use of new technologies potentiality, the results outside the French borders: case study: what differences between the European and US markets, prices volatility and commodity risk management: towards the on-line trading, role and developments of E-business in energy trading, how to simplify trade in a liberalized market. (J.S.)

  15. Heat Pipe Materials Compatibility

    Science.gov (United States)

    Eninger, J. E.; Fleischman, G. L.; Luedke, E. E.

    1976-01-01

    An experimental program to evaluate noncondensable gas generation in ammonia heat pipes was completed. A total of 37 heat pipes made of aluminum, stainless steel and combinations of these materials were processed by various techniques, operated at different temperatures and tested at low temperature to quantitatively determine gas generation rates. In order of increasing stability are aluminum/stainless combination, all aluminum and all stainless heat pipes. One interesting result is the identification of intentionally introduced water in the ammonia during a reflux step as a means of surface passivation to reduce gas generation in stainless-steel/aluminum heat pipes.

  16. Introduction to Heat Pipes

    Science.gov (United States)

    Ku, Jentung

    2015-01-01

    This is the presentation file for the short course Introduction to Heat Pipes, to be conducted at the 2015 Thermal Fluids and Analysis Workshop, August 3-7, 2015, Silver Spring, Maryland. NCTS 21070-15. Course Description: This course will present operating principles of the heat pipe with emphases on the underlying physical processes and requirements of pressure and energy balance. Performance characterizations and design considerations of the heat pipe will be highlighted. Guidelines for thermal engineers in the selection of heat pipes as part of the spacecraft thermal control system, testing methodology, and analytical modeling will also be discussed.

  17. Heat Pipe Planets

    Science.gov (United States)

    Moore, William B.; Simon, Justin I.; Webb, A. Alexander G.

    2014-01-01

    When volcanism dominates heat transport, a terrestrial body enters a heat-pipe mode, in which hot magma moves through the lithosphere in narrow channels. Even at high heat flow, a heat-pipe planet develops a thick, cold, downwards-advecting lithosphere dominated by (ultra-)mafic flows and contractional deformation at the surface. Heat-pipes are an important feature of terrestrial planets at high heat flow, as illustrated by Io. Evidence for their operation early in Earth's history suggests that all terrestrial bodies should experience an episode of heat-pipe cooling early in their histories.

  18. Trade Tokens

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    In the pursuit of balanced trade with the U.S., China pours it on where it counts A week ahead of Chinese President Hu Jintao's first state visit to the United States, Beijing and Washington reached a series of agreements intended to ease the bilateral trade imbalance, including resuming trade in U.S. beef, increasing Chinese market access to U.S. medical devices, telecom services and express delivery, and cracking down on intellectual property rights infringements.

  19. Trade Advantages

    Institute of Scientific and Technical Information of China (English)

    Mei Xinyu

    2012-01-01

    As the world's largest trading nation,its largest exporter and second largest importer,China wields extensive influence on global trade and the world economy,China's advantages of course lie not only in the stable foreign trade policy decided by the recently held Central Economic Work Conference,but also in the strength and resilience of a broadbased and fast-growing economy.

  20. 75 FR 13729 - Circular Welded Non-Alloy Steel Pipe from the Republic of Korea: Extension of Time Limit for the...

    Science.gov (United States)

    2010-03-23

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe from the Republic of Korea: Extension of... circular welded non-alloy steel pipe from the Republic of Korea, covering the period November 1, 2007 through October 31, 2008. See Circular Welded Non-Alloy Steel Pipe from the Republic of Korea:...

  1. Trading Agents

    CERN Document Server

    Wellman, Michael

    2011-01-01

    Automated trading in electronic markets is one of the most common and consequential applications of autonomous software agents. Design of effective trading strategies requires thorough understanding of how market mechanisms operate, and appreciation of strategic issues that commonly manifest in trading scenarios. Drawing on research in auction theory and artificial intelligence, this book presents core principles of strategic reasoning that apply to market situations. The author illustrates trading strategy choices through examples of concrete market environments, such as eBay, as well as abst

  2. A Global Optimizing Policy for Decaying Items with Ramp-Type Demand Rate under Two-Level Trade Credit Financing Taking Account of Preservation Technology

    Directory of Open Access Journals (Sweden)

    S. R. Singh

    2013-01-01

    Full Text Available An inventory system for deteriorating items, with ramp-type demand rate, under two-level trade credit policy taking account of preservation technology is considered. The objective of this study is to develop a deteriorating inventory policy when the supplier provides to the retailer a permissible delay in payments, and during this credit period, the retailer accumulates the revenue and earns interest on that revenue; also the retailer invests on the preservation technology to reduce the rate of product deterioration. Shortages are allowed and partially backlogged. Sufficient conditions of the existence and uniqueness of the optimal replenishment policy are provided, and an algorithm, for its determination, is proposed. Numerical examples draw attention to the obtained results, and the sensitivity analysis of the optimal solution with respect to leading parameters of the system is carried out.

  3. 76 FR 25732 - Order of Suspension of Trading; In the Matter of Advanced Refractive Technologies, Inc., Bluebook...

    Science.gov (United States)

    2011-05-05

    ... Technologies, Inc., and Holter Technologies Holding, A.G. (n/k/a International Consortium Corp.) It appears to... Commission that there is a lack of current and accurate information concerning the securities of Holter...

  4. 复杂地层长螺旋引孔双管夯扩灌注桩综合施工技术%The complex formation of long spiral hole pipe pile construction technology

    Institute of Scientific and Technical Information of China (English)

    刘文太; 张旭东

    2016-01-01

    由于在地质结构复杂、土质比较密实容易塌孔的地区,对设计桩身长度大于16m的设计要求,采用传统柴油打桩锤或振动沉管的施工工艺,很难成孔,而采用长螺旋引孔双管夯扩灌注桩综合施工技术,既解决了在复杂密实地区超长沉管的成孔问题,同时也解决了超长桩身在混凝土灌注过程中产生的桩身的缩径、断桩以及桩身混凝土不密实的问题。%Due to the complex geological structure, soil is compacted easily collapse hole area, the design pile length greater than 16m design requirements by conventional diesel piling hammer or vibration sinking pipe construction technology,very hard into the hole,and the use of long spiral hole guiding pipe ramming cast-in-place pile construction technology.Not only solved the in complex dense area long immersed into the hole,but also solve the super long pile in concrete pouring process of pile of shrinkage,broken pile and the pile body concrete is not dense.

  5. 高频焊接钢管焊缝的超声波自动检测工艺%Automated Ultrasonic Inspection Technology for Weld Seam of High Frequency Welding Pipes

    Institute of Scientific and Technical Information of China (English)

    张志刚

    2011-01-01

    在高频焊接钢管焊缝自动超声波检测的实际工作中,精确的焊缝跟踪较难实现,易影响检测的可靠性.通过对超声波检测技术进行分析,利用6 dB声束全壁厚覆盖区进行检测,提出了一套超声波检测新工艺.实践证明:该工艺可以在焊缝跟踪不精确的情况下实现可靠的超声波检测,为高频焊接钢管焊缝自动超声波检测提供了一套有效的检测方法.%During the automated ultrasonic inspection of weld seam of high frequency welding(HFW) pipes,it is very difficult to track the weld seam accurately, which will affect the reliability of inspection easily. Through the analysis of ultrasonic inspection techniques, and inspecting with 6 dB sound beam full wall thickness overlap area, a new set of ultrasonic inspection technology was put forward. Practice showed that, in the event of inexact seam track, the technology can assure the reliable inspection result, and provided a effective method for the automated ultrasonic inspection of weld seams of HFW pipes.

  6. Emissions Trading

    NARCIS (Netherlands)

    Woerdman, Edwin; Backhaus, Juergen

    2014-01-01

    Emissions trading is a market-based instrument to achieve environmental targets in a cost-effective way by allowing legal entities to buy and sell emission rights. The current international dissemination and intended linking of emissions trading schemes underlines the growing relevance of this

  7. Emissions Trading

    NARCIS (Netherlands)

    Woerdman, Edwin; Backhaus, Juergen

    2014-01-01

    Emissions trading is a market-based instrument to achieve environmental targets in a cost-effective way by allowing legal entities to buy and sell emission rights. The current international dissemination and intended linking of emissions trading schemes underlines the growing relevance of this instr

  8. Explosive welding of pipes

    Energy Technology Data Exchange (ETDEWEB)

    Drennov, O.; Burtseva, O.; Kitin, A. [Russian Federal Nuclear Center, Sarov (Russian Federation)

    2006-08-15

    Arrangement of pipelines for the transportation of oil and gas is a complicated problem. In this paper it is suggested to use the explosive welding method to weld pipes together. This method is rather new. This method can be advantageous (saving material and physical resources) comparing to its static analogs (electron-beam welding, argon-arc welding, plasma welding, gas welding, etc.), in particular, in hard-to-reach areas due to their geographic and climatic conditions. We suggest to perform explosive welding according to the following scheme: the ends of the 2 pipes are connected, the external surfaces are kept at a similar level. A cylindrical steel layer of diameter larger than the pipe diameter is set around the pipe joint and an explosive charge is placed on its external surface. The basic problem is the elimination of strains and reduction of pipe diameter in the area of the dynamic effect. The suggestion is to use water as filler: the volume of pipes in the area adjacent to the zone of explosive welding is totally filled with water. The principle of non-compressibility of liquid under quasi-dynamic loading is used. In one-dimensional gas dynamic and elastic-plastic calculations we determined non-deformed mass of water. Model experiments with pipes having radii R = 57 mm confirmed results of the calculations and the possibility in principle to weld pipes by explosion with use of water as filler.

  9. Optimization of Pipe Networks

    DEFF Research Database (Denmark)

    Hansen, C. T.; Madsen, Kaj; Nielsen, Hans Bruun

    1991-01-01

    The paper treats a piping system, where the layout of the network is given but the diameters of the pipes should be chosen among a small number of different values. The cost of realizing the system should be minimized while keeping the energy heads at the nodes above some lower limits. A new...

  10. A heat pipe

    Energy Technology Data Exchange (ETDEWEB)

    Rachev, L.A.; Kravtsov, A.A.

    1979-02-08

    A thermal pipe is described which contains a hermetically sealed body with a reticular filler. In order to increase the transmitted thermal power, the pipe is equipped with a high voltage source and with insulators, located between the wall of the body and the filler, where the latter is switched in to the high voltage source, preferably an adjustable one.

  11. Small and medium enterprises (SME) adjustments to information technology (IT) in trade facilitation: The South Korean experience

    OpenAIRE

    Yang, Junsok

    2009-01-01

    This report examines how IT was incorporated into cargo clearance procedures in Korea, and what its implications are for traders, SMEs in particular. After a short introduction in Section I, Section II examines the definition of SMEs in Korea, and SMEs’ role in Korean trade. In Section III, we describe the history of the adoption of IT in Korean cargo clearance. The introduction of IT to cargo clearance procedures in Korea can be roughly divided into two stages. The first stage includes the i...

  12. 27 CFR 40.216a - Notice for pipe tobacco.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Notice for pipe tobacco. 40.216a Section 40.216a Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO MANUFACTURE OF TOBACCO PRODUCTS, CIGARETTE...

  13. 27 CFR 41.72a - Notice for pipe tobacco.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Notice for pipe tobacco. 41.72a Section 41.72a Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO IMPORTATION OF TOBACCO PRODUCTS, CIGARETTE PAPERS AND...

  14. 27 CFR 45.45a - Notice for pipe tobacco.

    Science.gov (United States)

    2010-04-01

    ... 27 Alcohol, Tobacco Products and Firearms 2 2010-04-01 2010-04-01 false Notice for pipe tobacco. 45.45a Section 45.45a Alcohol, Tobacco Products and Firearms ALCOHOL AND TOBACCO TAX AND TRADE BUREAU, DEPARTMENT OF THE TREASURY (CONTINUED) TOBACCO REMOVAL OF TOBACCO PRODUCTS AND CIGARETTE PAPERS AND...

  15. Oscillating heat pipes

    CERN Document Server

    Ma, Hongbin

    2015-01-01

    This book presents the fundamental fluid flow and heat transfer principles occurring in oscillating heat pipes and also provides updated developments and recent innovations in research and applications of heat pipes. Starting with fundamental presentation of heat pipes, the focus is on oscillating motions and its heat transfer enhancement in a two-phase heat transfer system. The book covers thermodynamic analysis, interfacial phenomenon, thin film evaporation,  theoretical models of oscillating motion and heat transfer of single phase and two-phase flows, primary  factors affecting oscillating motions and heat transfer,  neutron imaging study of oscillating motions in an oscillating heat pipes, and nanofluid’s effect on the heat transfer performance in oscillating heat pipes.  The importance of thermally-excited oscillating motion combined with phase change heat transfer to a wide variety of applications is emphasized. This book is an essential resource and learning tool for senior undergraduate, gradua...

  16. The monster sound pipe

    Science.gov (United States)

    Ruiz, Michael J.; Perkins, James

    2017-03-01

    Producing a deep bass tone by striking a large 3 m (10 ft) flexible corrugated drainage pipe immediately grabs student attention. The fundamental pitch of the corrugated tube is found to be a semitone lower than a non-corrugated smooth pipe of the same length. A video (https://youtu.be/FU7a9d7N60Y) of the demonstration is included, which illustrates how an Internet keyboard can be used to estimate the fundamental pitches of each pipe. Since both pipes have similar end corrections, the pitch discrepancy between the smooth pipe and drainage tube is due to the corrugations, which lower the speed of sound inside the flexible tube, dropping its pitch a semitone.

  17. 陕西高校“技术开发多、技术许可少”现象分析*--基于知识控制权的视角%Why Are There More Technology Development Trades Than Technology Licensing Trades in Shaanxi Universities? An Explanation from Knowledge Control Power Perspective

    Institute of Scientific and Technical Information of China (English)

    张胜; 余碧仪; 郭英远; 宓洪乐

    2016-01-01

    [目的/意义]推动高校以许可方式扩散成果是国家深化科技体制改革的重要目标,但本文发现陕西高校存在“技术开发多、技术许可少”现象;因此,识别其致因并据此提出改进策略,对于高校落实国家改革战略尤为重要。[方法/过程]论文首先采用相关利益群体分析方法识别技术开发与技术许可活动的利益主体;其次,基于技术市场交易视角,采用产权分析方法构建了职务成果知识控制权的权利结构;然后,以2015年新《促进科技成果转化法》的颁布为时间分界线,分别对比分析了技术开发和技术许可的知识权控制权在相关利益群体之间的配置结构。[结果/结论]研究指出,2015年前任何一个利益主体均不享有技术许可的完整知识控制权,而教师享有技术开发的完整知识控制权,是这一现象产生的根本原因。%Purpose/Significance] Promoting technology licensing in universities is important for deepening the reform of science and technology system. It was found that there existed more technology development trades in Shaanxi universities’ technology transaction than technology licensing, which is a rather disappointing phenomenon in implementing the national reform strategy in universities, and it is sig-nificant to analyze the reason of the phenomenon and propose the management mentality accordingly. [ Method/Process] First, we identify the main stakeholders in both technology development trades and technology licensing trades with a stakeholder analysis;second, we con-struct a knowledge control right structure of occupational sci-tech achievements with a property-rights analysis from a technology transac-tion perspective;third, comparing with technology development trades, we analyze each right configuration in technology licensing be-tween the stakeholders before and after newly amended“2015 Law of Promoting Transformation for Sci-tech Achievements

  18. Thermal control of electronic equipment by heat pipes; Controle thermique de composants electroniques par caloducs

    Energy Technology Data Exchange (ETDEWEB)

    Groll, M.; Schneider, M. [Stuttgart Univ. (Germany). Inst. fuer Kernenergetik und Energiesysteme; Sartre, V.; Chaker Zaghdoudi, M.; Lallemand, M. [Institut National des Sciences Appliquees (INSA), 69 - Villeurbanne (France). Centre de Thermique de Lyon, Upresa CNRS

    1998-05-01

    In the frame of the BRITE-EURAM european programme (KHIEPCOOL project), a literature survey on the main beat pipe and micro heat pipe technologies developed for thermal control of electronic equipment has been carried out. The conventional heat pipes are cylindrical, flat or bellow tubes, using wicks or axial grooves as capillary structures. In the field of micro heat pipes, the component interconnection substrate. The best performances were achieved with Plesch`s axially grooved flat miniature heat pipe, which is able to transfer a heat flux of about 60 W.cm{sup -2}. Theoretical models have shown that the performance of micro heat pipe arrays increase with increasing tube diameter, decreasing tube length and increasing heat pipe density. The heat pipe technologies are classified and compared according to their geometry and location in the system. A list of about 150 references, classified according to their subjects, is presented. (authors) 160 refs.

  19. A study on the experimental verification for the pipe whip problem in a Nuclear Power Plant

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Yeong Shin; Choi, Myeong Hwan; Kim, Yeong Wan; Hyeon, Joong Sup; Han, Jae Do; Kang, Yun Gee [Chungnam National Univ., Taejon (Korea, Republic of)

    1993-12-15

    The purpose of this study is to investigate on the experimental verification analysis for the pipe whip problems and to obtain the quantitative evaluation technologies for the design technique of pipe whip restraints. These will contribute to the advance of nuclear regulatory technologies and enhance nuclear power plant safety. This study presents the experimental and transient analytical results of pipe whip tests using the 4', 6' diameter pipe and U-shaped restraints. In the tests, the effects of the overhang length, clearance, impact height on the pipe whip behavior of the pipe-restraints were investigated. The transient impact analysis of the pipe-restraint system was conducted by the finite element program ABAQUS. The applicability of the ABAQUS program to the pipe whip analysis is made clear through this analysis.

  20. 平板DR数字成像技术在焊管行业中的应用%Application of Flat Panel Digital Radiography Imaging Technology in Welded Pipe Industry

    Institute of Scientific and Technical Information of China (English)

    王长安; 余国民; 魏雅博

    2014-01-01

    In this article, it introduced the working principle of digital radiography(DR) imaging technology and its application in welded pipe industry. Compared with the detection effect of traditional X-ray industrial TV from sensitivity detection, image resolution, residual magnetization, radiation dose etc. The result showed that the flat panel DR imaging technology is with some advantages, such as high sensitivity of detection, high efficiency, low labour tension, little doses of radiation and so on. It ensures the weld quality, greatly reduces the accident rate of pipeline, and can replace X-ray industrial TV detecting technology. At present, this technology is widely applied in welded pipe industry.%介绍了DR数字成像技术的工作原理及其在焊管行业检测中的应用。在灵敏度检测、图像分辨率、剩磁影响和辐射剂量等方面与传统的X射线工业电视的检测效果进行了比较分析。结果表明, DR数字成像技术具有检测灵敏度和检测效率较高、劳动强度小、辐射剂量小等优点,保证了焊缝质量,大大降低了管线的事故发生率,可以替代传统X射线工业电视检测技术在焊管行业的应用。

  1. Reeling of tight fit pipe

    NARCIS (Netherlands)

    Focke, E.S.

    2007-01-01

    If it would be possible to install Tight Fit Pipe by means of reeling, it would be an attractive new option for the exploitation of offshore oil and gas fields containing corrosive hydrocarbons. Tight Fit Pipe is a mechanically bonded double walled pipe where a corrosion resistant alloy liner pipe

  2. Experimenting with a "Pipe" Whistle

    Science.gov (United States)

    Stafford, Olga

    2012-01-01

    A simple pipe whistle can be made using pieces of PVC pipe. The whistle can be used to measure the resonant frequencies of open or closed pipes. A slightly modified version of the device can be used to also investigate the interesting dependence of the sound frequencies produced on the orifice-to-edge distance. The pipe whistle described here…

  3. Progress in Spiral Saw Steel Pipe Manufacturing Technology Promotes Construction of Oil/Gas Long-Distance Pipelines in West China

    Institute of Scientific and Technical Information of China (English)

    Huang Zhiqian

    1997-01-01

    @@ Introduction Since the tremendous development of oil and gas exploration achieved in West China at the beginning of 1990's, it is demanded to build several long-distance oil/gas pipelines to transmit the crude oil and natural gas from Tarimu Basin, Tuha Basin, Junggar Basin as well as Shaan-Gan-Ning Basin to the cities of Urumuqi,Klamayi, Xi'an and Beijing (details see Table 1). The total length of pipelines is more than 3 200 km, and the natural conditions along the pipelines are very harsh. This raises a challenge to the Chinese pipe manufacturing industry.

  4. Pipe drafting and design

    CERN Document Server

    Parisher, Roy A

    2011-01-01

    Pipe Drafting and Design, Third Edition provides step-by-step instructions to walk pipe designers, drafters, and students through the creation of piping arrangement and isometric drawings. It includes instructions for the proper drawing of symbols for fittings, flanges, valves, and mechanical equipment. More than 350 illustrations and photographs provide examples and visual instructions. A unique feature is the systematic arrangement of drawings that begins with the layout of the structural foundations of a facility and continues through to the development of a 3-D model. Advanced chapters

  5. Optimization of Pipe Networks

    DEFF Research Database (Denmark)

    Hansen, C. T.; Madsen, Kaj; Nielsen, Hans Bruun

    1991-01-01

    The paper treats a piping system, where the layout of the network is given but the diameters of the pipes should be chosen among a small number of different values. The cost of realizing the system should be minimized while keeping the energy heads at the nodes above some lower limits. A new...... algorithm using successive linear programming is presented. The performance of the algorithm is illustrated by optimizing a network with 201 pipes and 172 nodes. It is concluded that the new algorithm seems to be very efficient and stable, and that it always finds a solution with a cost near the best...

  6. An electrohydrodynamic heat pipe.

    Science.gov (United States)

    Jones, T. B.

    1972-01-01

    A heat pipe of new design, using an electrode structure to orient and guide the dielectric liquid phase flow, is proposed. Analysis indicates that the operation of the electrohydrodynamic heat pipe is in direct analogy to capillary devices, with the polarization force acting in place of capillarity. Advantages of these new heat pipes include greatly reduced liquid friction, electrohydrodynamically enhanced evaporation and condensation heat transfer, and a possible voltage-controlled on/off feature. Preliminary calculations indicate that relatively high performance devices are possible.

  7. Electrohydrodynamic heat pipes.

    Science.gov (United States)

    Jones, T. B.

    1973-01-01

    An electrohydrodynamic heat pipe of radical design is proposed which substitutes polarization electrohydrodynamic force effects for capillarity in collecting, guiding, and pumping a condensate liquid phase. The discussed device is restricted to the use of dielectric liquids as working fluids. Because of the relatively poor thermal transport properties of these liquids, capillary heat pipes using these liquids have not been high performance devices. The employment of the electrohydrodynamic concept should enhance this performance and help fill the performance gap that exists in the temperature range from 250 F to 750 F for 'conventional' capillary heat pipes.

  8. Foreign Trade

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Foreign Trade database has monthly volume and value information for US imports, exports, and re-exports of fishery or fishery derived products. Data is...

  9. 导波检测技术在“抚-鲅”线上的应用%Application of Ultrasonic Guided Wave Detection Technology in Fushun-Bayuquan Pipe

    Institute of Scientific and Technical Information of China (English)

    牛迎战; 张利民; 林猛

    2014-01-01

    The uitrasonic guided wave technology for pipeline defect detection has been applied in industrial field. In this paper, the development history and basic theory of the ultrasonic guided wave technology were introduced. Concrete application of the guided wave inspection technology in defect detection of Fushun-Bayuquan pipe was discussed. Testing conclusion was verified by in-situ observation, which showed that application of the guided wave inspection technology in pipeline defect detection was successful. At last, development trend of the ultrasonic guided wave inspection technology was prospected.%用导波技术对管道缺陷检测进入工业现场应用阶段。介绍了超声导波技术的发展历史及基本理论。表述了导波检测技术“抚-鲅”线缺陷检测中的具体应用过程,检测缺陷结论经现场观测验证准确。表明管道缺陷导波检测技术在“抚-鲅”线上的应用成功。幵指出随着超声导波技术的发展,其在管道缺陷检测工程中将得到广泛的应用。

  10. Comparative assessment of hydrogen storage and international electricity trade for a Danish energy system with wind power and hydrogen/fuel cell technologies. Final project report

    Energy Technology Data Exchange (ETDEWEB)

    Soerensen, Bent (Roskilde University, Energy, Environment and Climate Group, Dept. of Environmental, Social and Spatial Change (ENSPAC) (DK)); Meibom, P.; Nielsen, Lars Henrik; Karlsson, K. (Technical Univ. of Denmark, Risoe National Laboratory for Sustainable Energy, Systems Analysis Dept., Roskilde (DK)); Hauge Pedersen, A. (DONG Energy, Copenhagen (DK)); Lindboe, H.H.; Bregnebaek, L. (ea Energy Analysis, Copenhagen (DK))

    2008-02-15

    This report is the final outcome of a project carried out under the Danish Energy Agency's Energy Research Programme. The aims of the project can be summarized as follows: 1) Simulation of an energy system with a large share of wind power and possibly hydrogen, including economic optimization through trade at the Nordic power pool (exchange market) and/or use of hydrogen storage. The time horizon is 50 years. 2) Formulating new scenarios for situations with and without development of viable fuel cell technologies. 3) Updating software to solve the abovementioned problems. The project has identified a range of scenarios for all parts of the energy system, including most visions of possible future developments. (BA)

  11. 利用相控阵技术对于厚壁钢管的探伤方法研究%Research of thick-walled steel pipe testing method using phased array technology

    Institute of Scientific and Technical Information of China (English)

    陈树

    2016-01-01

    For the non-destructive testing of thick-walled steel pipe, in general use ray testing or ultrasonic testing. But ray testing or A ultrasonic testing spent more time and low efifciency. Advanced ultrasonic phased array testing technology can improve efifciency. The feasibility and reliability of the thick-walled steel pipe testing was veriifed by drawing a DAC curve of test block comparison method.%对于厚壁钢管的无损探伤,一般采取射线探伤或超声波探伤。但射线探伤和A超探伤所耗费的时间比较长,效率不高。我们可以通过研究超声波中较为先进的相控阵探伤技术来提高效率。对此我们通过试块对比法绘制DAC曲线来验证相控阵技术在钢制厚壁圆管的探伤中的可行性和可靠性。

  12. Trade marketing

    OpenAIRE

    Khodl, Vojtěch

    2013-01-01

    The main objective of this thesis is to define the term "trade marketing" and evaluate its role within the Coca-Cola Hellenic Bottling Company. With the use of internal resources and relevant literature, I will describe the use of trade marketing from both theoretical and practical point of view. I will also introduce the Coca-Cola HBC and its position on the carbonated soft drinks market in the Czech republic.

  13. Micro-Channel Embedded Pulsating Heat Pipes Project

    Data.gov (United States)

    National Aeronautics and Space Administration — As the need for thermal control technology becomes more demanding Micro-Channel Embedded Pulsating Heat Pipes (ME-PHPs) represents a sophisticated and enabling...

  14. In-Situ Measurements of Low Enrichment Uranium Holdup Process Gas Piping at K-25 - Paper for Waste Management Symposia 2010 East Tennessee Technology Park Oak Ridge, Tennessee

    Energy Technology Data Exchange (ETDEWEB)

    Rasmussen B.

    2010-01-01

    This document is the final version of a paper submitted to the Waste Management Symposia, Phoenix, 2010, abstract BJC/OR-3280. The primary document from which this paper was condensed is In-Situ Measurement of Low Enrichment Uranium Holdup in Process Gas Piping at K-25 Using NaI/HMS4 Gamma Detection Systems, BJC/OR-3355. This work explores the sufficiency and limitations of the Holdup Measurement System 4 (HJVIS4) software algorithms applied to measurements of low enriched uranium holdup in gaseous diffusion process gas piping. HMS4 has been used extensively during the decommissioning and demolition project of the K-25 building for U-235 holdup quantification. The HMS4 software is an integral part of one of the primary nondestructive assay (NDA) systems which was successfully tested and qualified for holdup deposit quantification in the process gas piping of the K-25 building. The initial qualification focused on the measurement of highly enriched UO{sub 2}F{sub 2} deposits. The purpose of this work was to determine if that qualification could be extended to include the quantification of holdup in UO{sub 2}F{sub 2} deposits of lower enrichment. Sample field data are presented to provide evidence in support of the theoretical foundation. The HMS4 algorithms were investigated in detail and found to sufficiently compensate for UO{sub 2}F{sub 2} source self-attenuation effects, over the range of expected enrichment (4-40%), in the North and East Wings of the K-25 building. The limitations of the HMS4 algorithms were explored for a described set of conditions with respect to area source measurements of low enriched UO{sub 2}F{sub 2} deposits when used in conjunction with a 1 inch by 1/2 inch sodium iodide (NaI) scintillation detector. The theoretical limitations of HMS4, based on the expected conditions in the process gas system of the K-25 building, are related back to the required data quality objectives (DQO) for the NBA measurement system established for the K-25

  15. An electrohydrodynamic heat pipe

    Science.gov (United States)

    Jones, T. B.

    1972-01-01

    Dielectric liquid for transfer of heat provides liquid flow from the condenser section to the evaporator section in conventional heat pipes. Working fluid is guided or pumped by an array of wire electrodes connected to a high-voltage source.

  16. Stuck pipe prediction

    KAUST Repository

    Alzahrani, Majed

    2016-03-10

    Disclosed are various embodiments for a prediction application to predict a stuck pipe. A linear regression model is generated from hook load readings at corresponding bit depths. A current hook load reading at a current bit depth is compared with a normal hook load reading from the linear regression model. A current hook load greater than a normal hook load for a given bit depth indicates the likelihood of a stuck pipe.

  17. The Monster Sound Pipe

    Science.gov (United States)

    Ruiz, Michael J.; Perkins, James

    2017-01-01

    Producing a deep bass tone by striking a large 3 m (10 ft) flexible corrugated drainage pipe immediately grabs student attention. The fundamental pitch of the corrugated tube is found to be a semitone lower than a non-corrugated smooth pipe of the same length. A video (https://youtu.be/FU7a9d7N60Y) of the demonstration is included, which…

  18. Heat pipes and solid sorption transformations fundamentals and practical applications

    CERN Document Server

    Vasiliev, LL

    2013-01-01

    Developing clean energy and utilizing waste energy has become increasingly vital. Research targeting the advancement of thermally powered adsorption cooling technologies has progressed in the past few decades, and the awareness of fuel cells and thermally activated (heat pipe heat exchangers) adsorption systems using natural refrigerants and/or alternatives to hydrofluorocarbon-based refrigerants is becoming ever more important. Heat Pipes and Solid Sorption Transformations: Fundamentals and Practical Applications concentrates on state-of-the-art adsorption research and technologies for releva

  19. Effect on mechanical properties of glass reinforced epoxy (GRE) pipe filled with different geopolymer filler molarity for piping application

    Science.gov (United States)

    Hashim, M. F. Abu; Abdullah, M. M. A.; Ghazali, C. M. R.; Hussin, K.; Binhussain, M.

    2017-04-01

    This study investigated the use of a novel white clay geopolymer as a filler to produce high strength glass reinforced epoxy pipe. It was found that using white clay geopolymer as filler gives better compressive strength to the glass reinforced epoxy pipe. The disadvantages of current glass reinforced epoxy pipes such low compressive strength which can be replaced by the composite pipes. Geopolymerization is an innovative technology that can transform several aluminosilicate materials into useful products called geopolymers or inorganic polymers. A series of glass reinforced epoxy pipe and glass reinforced epoxy pipe filled with 10 - 40 weight percentages white clay geopolymer filler with 4 Molarity and 8 Molarity were prepared. Morphology of white clay geopolymer filler surface was indicates using scanning electron microscopy. The additions of white clay geopolymer filler for both 4 Molarity and 8 Molarity show higher compressive strength than glass reinforced epoxy pipe without any geopolymer filler. The compressive test of these epoxy geopolymer pipe samples was determined using Instron Universal Testing under compression mode. Nonetheless, the compressive strength of glass reinforced epoxy pipe with white clay geopolymer filler continues to drop when added to 40 wt% of the geopolymer filler loading for both 4 Molarity and 8 Molarity. These outcomes showed that the mixing of geopolymer materials in epoxy system can be attained in this research.

  20. Heat pipe dynamic behavior

    Science.gov (United States)

    Issacci, F.; Roche, G. L.; Klein, D. B.; Catton, I.

    1988-01-01

    The vapor flow in a heat pipe was mathematically modeled and the equations governing the transient behavior of the core were solved numerically. The modeled vapor flow is transient, axisymmetric (or two-dimensional) compressible viscous flow in a closed chamber. The two methods of solution are described. The more promising method failed (a mixed Galerkin finite difference method) whereas a more common finite difference method was successful. Preliminary results are presented showing that multi-dimensional flows need to be treated. A model of the liquid phase of a high temperature heat pipe was developed. The model is intended to be coupled to a vapor phase model for the complete solution of the heat pipe problem. The mathematical equations are formulated consistent with physical processes while allowing a computationally efficient solution. The model simulates time dependent characteristics of concern to the liquid phase including input phase change, output heat fluxes, liquid temperatures, container temperatures, liquid velocities, and liquid pressure. Preliminary results were obtained for two heat pipe startup cases. The heat pipe studied used lithium as the working fluid and an annular wick configuration. Recommendations for implementation based on the results obtained are presented. Experimental studies were initiated using a rectangular heat pipe. Both twin beam laser holography and laser Doppler anemometry were investigated. Preliminary experiments were completed and results are reported.

  1. Choice of insulation standard for pipe networks in 4th generation district heating systems

    DEFF Research Database (Denmark)

    Lund, Rasmus Søgaard; Mohammadi, Soma

    2016-01-01

    and smart gas grids. Improving DH pipes by improving the insulation standard results in decreasing the heat and temperature losses from the pipe networks. When reducing heat losses from DH pipes, there is a trade-off between the increasing cost of pipe insulation and the associated savings in the heat......Reducing heat losses from the pipe networks in district heating (DH) systems is one of the main challenges when developing DH in the future. Fourth generation DH is a concept that defines the role of DH in future smart energy systems as an integrated part together with smart electricity grids...... by implementing different pipe insulation standards. In the second step, the specific grid losses found in the first step are analysed in an integrated energy systems model where all main energy sectors and their interrelations are included. The outcome of the study can provide decision support when planning...

  2. 76 FR 66685 - Foreign-Trade Zone 37-Orange County, NY, Application for Subzone, ITT Water Technology, Inc...

    Science.gov (United States)

    2011-10-27

    ... Technology, Inc. (Centrifugal and Submersible Pumps), Auburn, NY An application has been submitted to the... special purpose subzone status for the centrifugal and submersible pump manufacturing and warehousing... facilities are used to manufacture and distribute centrifugal and submersible pumps and related...

  3. 75 FR 44763 - Certain Circular Welded Non-Alloy Steel Pipe From Mexico; Extension of Time Limit for Preliminary...

    Science.gov (United States)

    2010-07-29

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE International Trade Administration Certain Circular Welded Non-Alloy Steel Pipe From Mexico; Extension of Time... welded non- alloy steel pipe from Mexico. We also received review requests on November 30, 2009,...

  4. 76 FR 52636 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Partial Rescission of...

    Science.gov (United States)

    2011-08-23

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Partial... the antidumping duty order on certain circular welded non-alloy steel pipe (``circular welded...

  5. 77 FR 8808 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Extension of the Final Results...

    Science.gov (United States)

    2012-02-15

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Extension of... antidumping duty administrative review of circular welded non-alloy steel pipe from the Republic of Korea, covering the period November 1, 2009, through October 31, 2010. See Circular Welded Non-Alloy Steel...

  6. 75 FR 39917 - Circular Welded Non-Alloy Steel Pipe from the Republic of Korea: Extension of Time Limit for...

    Science.gov (United States)

    2010-07-13

    ... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE International Trade Administration (A-580-809) Circular Welded Non-Alloy Steel Pipe from the Republic of Korea... non-alloy steel pipe from the Republic of Korea, covering the period November 1, 2008 through...

  7. 77 FR 43806 - Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the People's Republic of...

    Science.gov (United States)

    2012-07-26

    ... International Trade Administration Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the... Department) initiated an administrative review of the antidumping duty order on seamless carbon and alloy... carbon and alloy steel standard, line, and pressure pipe from the People's Republic of China covering...

  8. 76 FR 15941 - Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Extension of the Final Results...

    Science.gov (United States)

    2011-03-22

    ... International Trade Administration Circular Welded Non-Alloy Steel Pipe From the Republic of Korea: Extension of... antidumping duty administrative review of circular welded non-alloy steel pipe from the Republic of Korea, covering the period November 1, 2008, through October 31, 2009. See Circular Welded Non-Alloy Steel...

  9. 78 FR 54864 - Light-Walled Rectangular Pipe and Tube From Mexico: Preliminary Results and Partial Rescission of...

    Science.gov (United States)

    2013-09-06

    ... order. \\2\\ See Light-Walled Rectangular Pipe and Tube from Mexico, the People's Republic of China, and... International Trade Administration Light-Walled Rectangular Pipe and Tube From Mexico: Preliminary Results and...) is conducting an administrative review of the antidumping duty order on light-walled rectangular...

  10. 77 FR 55455 - Light-Walled Rectangular Pipe and Tube From Turkey: Notice of Final Results of Antidumping Duty...

    Science.gov (United States)

    2012-09-10

    .... The final results are listed in the section entitled ``Final Results of Review'' below. \\1\\ See Light... further notice. \\3\\ See Notice of Antidumping Duty Order: Light-Walled Rectangular Pipe and Tube From... International Trade Administration Light-Walled Rectangular Pipe and Tube From Turkey: Notice of Final...

  11. 76 FR 67673 - Welded ASTM A-312 Stainless Steel Pipe From South Korea and Taiwan: Final Results of Expedited...

    Science.gov (United States)

    2011-11-02

    ... International Trade Administration Welded ASTM A-312 Stainless Steel Pipe From South Korea and Taiwan: Final... (the Department) initiated sunset reviews of the antidumping duty orders on welded ASTM A-312 stainless... the antidumping duty orders on welded ASTM A-312 stainless steel pipe from South Korea and...

  12. 77 FR 73617 - Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary Results and Partial...

    Science.gov (United States)

    2012-12-11

    ... Value: Circular Welded Non-Alloy Steel Pipe From Mexico, 57 FR 42953 (September 17, 1992). Notification... From the Federal Register Online via the Government Publishing Office DEPARTMENT OF COMMERCE International Trade Administration Certain Circular Welded Non-Alloy Steel Pipe From Mexico: Preliminary...

  13. 75 FR 29972 - Certain Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe from the People's...

    Science.gov (United States)

    2010-05-28

    ..., regardless of wall-thickness, manufacturing process (e.g., hot-finished or cold-drawn), end finish (e.g...) pipe or ``hollow profiles'' suitable for cold finishing operations, such as cold drawing, to meet the... International Trade Administration Certain Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe...

  14. TIG Auto-Welding Technology on Heavy Wall Thickness Large Diameter and Narrow Gap Welded Pipe%厚壁大直径管窄间隙TIG自动焊技术

    Institute of Scientific and Technical Information of China (English)

    张相福

    2011-01-01

    Aiming at the disadvantages of the TIG-SMAW for heavy wall thickness and large diameter welded pipe, the narrow gap impulse TIG auto-welding technology was developed; it solved some design difficulties in TIG welding, such as penetration in weld sidewall, bevel design and etc. Through research on penetration technology in weld sidewall for narrow gap heavy wall thickness welding, the bevel combination for TIG welding was developed. It designed specified range welding parameters for heavy wall thickness welded pipe with the said bevel, and its process was validated in welding practice; it successfully solved process difficulties of narrow gap TIG auto-welding with heavy wall thickness and large diameter, and obtained excellent effect%针对厚壁大径管氩电联合焊的缺点,开发了窄间隙脉冲TIG自动焊工艺,解决了厚壁大直径管窄间隙TIG焊中焊缝侧壁熔透、坡口设计等难点,通过研究厚壁管窄间隙焊接焊缝侧壁熔透技术,开发厚壁大直径管窄间隙TIG焊组合坡口,设计焊接该种坡口厚壁管的特定范围的焊接工艺参数,并在焊接实例中进一步验证了该工艺技术的可靠性,成功解决了厚壁大直径管窄间隙TIG自动焊的工艺难点,并取得了良好的生产效果.

  15. Simulation of guided waves in complex piping geometries using the elastodynamic finite integration technique.

    Science.gov (United States)

    Rudd, Kevin E; Leonard, Kevin R; Bingham, Jill P; Hinders, Mark K

    2007-03-01

    Although many technologies exist for inspecting piping systems, they are most successful on straight pipes and are often unable to accommodate the added complexities of pipe elbows, bends, twists, and branches, particularly if the region of interest is inaccessible. This paper presents a numerical technique based on the elastodynamic finite integration technique for simulating guided elastic wave propagation in piping systems. Comparisons show agreement between experimental and simulated data, and guided wave interaction with flaws, focusing, and propagation in pipe bends are presented. These examples demonstrate the ability of the simulation method to be used to study elastic wave propagation in piping systems which include three-dimensional pipe bends, and suggest its potential as a design tool for designing pipe inspection hardware and ultrasonic signal processing algorithms.

  16. Navigating environmental, economic, and technological trade-offs in the design and operation of submerged anaerobic membrane bioreactors (AnMBRs).

    Science.gov (United States)

    Pretel, R; Shoener, B D; Ferrer, J; Guest, J S

    2015-12-15

    Anaerobic membrane bioreactors (AnMBRs) enable energy recovery from wastewater while simultaneously achieving high levels of treatment. The objective of this study was to elucidate how detailed design and operational decisions of submerged AnMBRs influence the technological, environmental, and economic sustainability of the system across its life cycle. Specific design and operational decisions evaluated included: solids retention time (SRT), mixed liquor suspended solids (MLSS) concentration, sludge recycling ratio (r), flux (J), and specific gas demand per membrane area (SGD). The possibility of methane recovery (both as biogas and as soluble methane in reactor effluent) and bioenergy production, nutrient recovery, and final destination of the sludge (land application, landfill, or incineration) were also evaluated. The implications of these design and operational decisions were characterized by leveraging a quantitative sustainable design (QSD) framework which integrated steady-state performance modeling across seasonal temperatures (using pilot-scale experimental data and the simulating software DESASS), life cycle cost (LCC) analysis, and life cycle assessment (LCA). Sensitivity and uncertainty analyses were used to characterize the relative importance of individual design decisions, and to navigate trade-offs across environmental, economic, and technological criteria. Based on this analysis, there are design and operational conditions under which submerged AnMBRs could be net energy positive and contribute to the pursuit of carbon negative wastewater treatment.

  17. Navigating environmental, economic, and technological trade-offs in the design and operation of submerged anaerobic membrane bioreactors (AnMBRs)

    KAUST Repository

    Pretel, R.

    2015-12-01

    © 2015 Elsevier Ltd. Anaerobic membrane bioreactors (AnMBRs) enable energy recovery from wastewater while simultaneously achieving high levels of treatment. The objective of this study was to elucidate how detailed design and operational decisions of submerged AnMBRs influence the technological, environmental, and economic sustainability of the system across its life cycle. Specific design and operational decisions evaluated included: solids retention time (SRT), mixed liquor suspended solids (MLSS) concentration, sludge recycling ratio (r), flux (J), and specific gas demand per membrane area (SGD). The possibility of methane recovery (both as biogas and as soluble methane in reactor effluent) and bioenergy production, nutrient recovery, and final destination of the sludge (land application, landfill, or incineration) were also evaluated. The implications of these design and operational decisions were characterized by leveraging a quantitative sustainable design (QSD) framework which integrated steady-state performance modeling across seasonal temperatures (using pilot-scale experimental data and the simulating software DESASS), life cycle cost (LCC) analysis, and life cycle assessment (LCA). Sensitivity and uncertainty analyses were used to characterize the relative importance of individual design decisions, and to navigate trade-offs across environmental, economic, and technological criteria. Based on this analysis, there are design and operational conditions under which submerged AnMBRs could be net energy positive and contribute to the pursuit of carbon negative wastewater treatment.

  18. 四分裂架空输电线路导线接续管的更换工艺%Replacement Technology for Conductor Connecting Pipe of Quad-bundle Overhead Transmission Lines

    Institute of Scientific and Technical Information of China (English)

    朱迪锋

    2016-01-01

    This paper describes the characteristics of replacement technology at height for conductor connect-ing pipe of quad-bundle EHV overhead transmission lines; besides, it analyzes the construction technology process. The construction technology is adopted in practical maintenance work, after which construction effi-ciency is enhanced, outage time of power lines is shortened, manpower and material resources for construc-tion work are reduced;besides, the impact on objects below the lines is reduced, and safety and efficiency of EHV transmission line maintenance are guaranteed.%叙述了四分裂超高压架空输电线路导线接续管的高空更换施工工艺特点,分析该施工工艺流程。在实际检修工作中运用后有效提高了施工效率,缩短线路停电时间,减少施工所需人力物力的投入,并对线路下方影响大大减少,确保了超高压输电线路检修工作的安全高效进行。

  19. Trade study of leakage detection, monitoring, and mitigation technologies to support Hanford single-shell waste retrieval

    Energy Technology Data Exchange (ETDEWEB)

    Hertzel, J.S.

    1996-03-01

    The U.S. Department of Energy has established the Tank Waste Remediation System to safely manage and dispose of low-level, high-level, and transuranic wastes currently stored in underground storage tanks at the Hanford Site in Eastern Washington. This report supports the Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) Milestone No. M-45-08-T01 and addresses additional issues regarding single-shell tank leakage detection, monitoring, and mitigation technologies and provide an indication of the scope of leakage detection, monitoring, and mitigation activities necessary to support the Tank Waste Remedial System Initial Single-shell Tank Retrieval System project.

  20. Epidemic Trade

    DEFF Research Database (Denmark)

    Boerner, Lars; Severgnini, Battista

    This paper studies the spread of the Black Death as a proxy for the intensity of medieval trade flows between 1346 and 1351. The Black Death struck most areas of Europe and the wider Mediterranean. Based on a modied version of the gravity model, we estimate the speed (in kilometers per day...

  1. Heat pipes and use of heat pipes in furnace exhaust

    Science.gov (United States)

    Polcyn, Adam D.

    2010-12-28

    An array of a plurality of heat pipe are mounted in spaced relationship to one another with the hot end of the heat pipes in a heated environment, e.g. the exhaust flue of a furnace, and the cold end outside the furnace. Heat conversion equipment is connected to the cold end of the heat pipes.

  2. Composite drill pipe

    Science.gov (United States)

    Leslie, James C [Fountain Valley, CA; Leslie, II, James C.; Heard, James [Huntington Beach, CA; Truong, Liem , Josephson; Marvin, Neubert [Huntington Beach, CA; Hans, [Anaheim, CA

    2008-12-02

    A composite pipe segment is formed to include tapered in wall thickness ends that are each defined by opposed frustoconical surfaces conformed for self centering receipt and intimate bonding contact within an annular space between corresponding surfaces of a coaxially nested set of metal end pieces. The distal peripheries of the nested end pieces are then welded to each other and the sandwiched and bonded portions are radially pinned. The composite segment may include imbedded conductive leads and the axial end portions of the end pieces are shaped to form a threaded joint with the next pipe assembly that includes a contact ring in one pipe assembly pierced by a pointed contact in the other to connect the corresponding leads across the joint.

  3. Heat-pipe Earth.

    Science.gov (United States)

    Moore, William B; Webb, A Alexander G

    2013-09-26

    The heat transport and lithospheric dynamics of early Earth are currently explained by plate tectonic and vertical tectonic models, but these do not offer a global synthesis consistent with the geologic record. Here we use numerical simulations and comparison with the geologic record to explore a heat-pipe model in which volcanism dominates surface heat transport. These simulations indicate that a cold and thick lithosphere developed as a result of frequent volcanic eruptions that advected surface materials downwards. Declining heat sources over time led to an abrupt transition to plate tectonics. Consistent with model predictions, the geologic record shows rapid volcanic resurfacing, contractional deformation, a low geothermal gradient across the bulk of the lithosphere and a rapid decrease in heat-pipe volcanism after initiation of plate tectonics. The heat-pipe Earth model therefore offers a coherent geodynamic framework in which to explore the evolution of our planet before the onset of plate tectonics.

  4. Pipe Drafting with CAD. Teacher Edition.

    Science.gov (United States)

    Smithson, Buddy

    This teacher's guide contains nine units of instruction for a course on computer-assisted pipe drafting. The course covers the following topics: introduction to pipe drafting with CAD (computer-assisted design); flow diagrams; pipe and pipe components; valves; piping plans and elevations; isometrics; equipment fabrication drawings; piping design…

  5. 隐性技术、贸易溢出和模仿策略%Tacit Technology, Trade Spillover and Imitating Strategy

    Institute of Scientific and Technical Information of China (English)

    宋艳丽; 王九云

    2011-01-01

    本文构建了一个扩展的南北贸易模型,将北方创新、南方模仿和进口产品隐性技术作为内生变量,分析进口国如何选择模仿策略以最大程度地获得进口产品的内生技术溢出效应.结果表明,进口产品中隐性技术含量会影响南方厂商的模仿策略:进口产品隐性技术含量低时,原始模仿是南方厂商的理性选择;进口产品隐性技术产量较高时,南方厂商的模仿策略取决于模仿的预期边际收益与单位模仿成本的对比关系:模仿的预期边际收益大于单位模仿成本时,内生模仿是南方厂商的最优选择,反之原始模仿.%The paper builds an expanded the trade model between the south and the north of Chins, involving the northern innovation, the southern imitation and tacit technology in the model as endogenous variables.Then the paper analyses how importers imitate the imported products to get optimal technology spillover effect.The theoretical analysis shows that the southern manufacturers' imitating strategy may be affected by tacit technology hidden within the imported products.If the content of tacit technology is low within the imported products, simple imitation is the southern manufacturers' optimal imitating strategy.And when the content of tacit technology is high, southern manufacturers' optimal imitating strategy depends on the relative relationship of imitation' s marginal revenue and unit imitating cost.When the imitation' s marginal revenue is higher than unit imitating cost, endogenous imitation is optimal for southern manufacturers, otherwise simple imitation.

  6. Moderated heat pipe thermionic reactor (MOHTR) module development and test

    Science.gov (United States)

    Merrigan, Michael A.; Trujillo, Vincent L.

    1992-01-01

    The Moderated Heat Pipe Thermionic Reactor (MOHTR) thermionic space reactor design combines the low risk technology associated with the Thermionic Fuel Element (TFE) Verification Program with the high reliability heat transfer capability of liquid metal heat pipe technology. The resulting design concept, capable of implementation over the power range of 10 to 100 kWe, offers efficiency and reliability with reduced risk of single point failures. The union of TFE and heat pipe technology is achieved by imbedding TFEs and heat pipes in a beryllium matrix to which they are thermally coupled by brazing or by liquid metal (NaK or Na) bonding. The reactor employs an array of TFE modules, each comprising a TFE, a zirconium hydride (ZrH) cylinder for neutron moderation, and heat pipes for transport of heat from the collector surface of the TFE to the waste heat radiator. An advantage of the design is the low temperature drop from the collector surface to the radiating surface. This is a result of the elimination of electrical insulation from the heat transport path through electrical isolation of the modules. The module used in this study consisted of a beryllium core, and electrical cartridge heater simulating the TFE, and three heat pipes to dissipate the waste heat. The investigation was focused on the thermal performance of the assembly, including evaluation of the sodium and braze bonding options for minimizing the thermal resistance between the elements, the temperature distribution in the beryllium matrix, and the heat pipe performance. Continuing subjects of the investigation include performance of the heat pipes through start-up transients, during normal operation, and in a single heat pipe failure mode. Secondary objectives of the investigation include correlation of analytic models for the thermionic element and module including the effects of gap thermal conductances at the modules electrically insulated surfaces.

  7. PE 100 pipe systems

    CERN Document Server

    Brömstrup, Heiner

    2012-01-01

    English translation of the 3rd edition ""Rohrsysteme aus PE 100"". Because of the considerably increased performance, pipe and pipe systems made from 100 enlarge the range of applications in the sectors of gas and water supply, sewage disposal, industrial pipeline construction and in the reconstruction and redevelopment of defective pipelines (relining). This book applies in particular to engineers, technicians and foremen working in the fields of supply, disposal and industry. Subject matters of the book are all practice-relevant questions regarding the construction, operation and maintenance

  8. Bericht über die 23. Tagung des Arbeitskreises Tonpfeifen vom 24. bis 26. April 2009 in Augsburg (Report About the 23rd Conference of the Clay Pipes Working Group, 24-26 April 2009

    Directory of Open Access Journals (Sweden)

    Ralf Kluttig-Altmann

    2010-03-01

    Full Text Available The 23rd meeting of the Clay Pipe Working Group was hosted by the art collection and museums in the Roman Museum in Augsburg. The more than 40 participants came from Germany, Austria, Switzerland, the Netherlands, Great Britain and the Tzech Republic. The meeting focused on new clay pipe finds, clay pipe trade and production, as well as on the political background of tobacco trade in Bavaria and neighboring areas.

  9. Study and Application of Zhongcheng Pump Truck Delivery Pipe Coating Technology%中成泵车输送管涂装工艺研究与应用

    Institute of Scientific and Technical Information of China (English)

    谌建军

    2012-01-01

    通过从法、环、机、料等因素分析着手,开发设计并建立了泵车输送管从抛丸、镶套至自动静电涂装的自动化流水线,实现了自动喷涂化生产,改善了人工喷涂作业环境恶劣,降低了工人工作劳动强度。并结合目前国内工程机械涂装生产线在引进、自产应用中的一些弊端,提出了今后的发展方向、具体措施及建议。%A pump pipe was design and the established from the analysis of law, ring, machine, material and other factor and an automatic electrostatic painting automated assembly line was built fi'om throwing pill, bushing and automatic spraying production and realized automated painting production, bad manual work spraying environment was improved and the labor intensity of workers was reduced. The future developing direction, measures and suggestions were proposed combined with some abuse in the current domestic engineering machinery coating production lines with the introduction and application process.

  10. New optimized drill pipe size for deep-water, extended reach and ultra-deep drilling

    Energy Technology Data Exchange (ETDEWEB)

    Jellison, Michael J.; Delgado, Ivanni [Grant Prideco, Inc., Hoston, TX (United States); Falcao, Jose Luiz; Sato, Ademar Takashi [PETROBRAS, Rio de Janeiro, RJ (Brazil); Moura, Carlos Amsler [Comercial Perfuradora Delba Baiana Ltda., Rio de Janeiro, RJ (Brazil)

    2004-07-01

    A new drill pipe size, 5-7/8 in. OD, represents enabling technology for Extended Reach Drilling (ERD), deep water and other deep well applications. Most world-class ERD and deep water wells have traditionally been drilled with 5-1/2 in. drill pipe or a combination of 6-5/8 in. and 5-1/2 in. drill pipe. The hydraulic performance of 5-1/2 in. drill pipe can be a major limitation in substantial ERD and deep water wells resulting in poor cuttings removal, slower penetration rates, diminished control over well trajectory and more tendency for drill pipe sticking. The 5-7/8 in. drill pipe provides a significant improvement in hydraulic efficiency compared to 5-1/2 in. drill pipe and does not suffer from the disadvantages associated with use of 6-5/8 in. drill pipe. It represents a drill pipe assembly that is optimized dimensionally and on a performance basis for casing and bit programs that are commonly used for ERD, deep water and ultra-deep wells. The paper discusses the engineering philosophy behind 5-7/8 in. drill pipe, the design challenges associated with development of the product and reviews the features and capabilities of the second-generation double-shoulder connection. The paper provides drilling case history information on significant projects where the pipe has been used and details results achieved with the pipe. (author)

  11. 46 CFR 154.503 - Piping and piping system components: Protection from movement.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Piping and piping system components: Protection from..., Construction and Equipment Cargo and Process Piping Systems § 154.503 Piping and piping system components... cause stresses that exceed the design stresses, the piping and piping system components and cargo...

  12. EU's forest fuel resources, energy technology market and international bioenergy trade; EU:n puuenergiavarat, energiateknologian markkinat ja bioenergiakauppa

    Energy Technology Data Exchange (ETDEWEB)

    Asikainen, A.; Laitila, J.; Parikka, H. [Finnish Forest Research Institute, Joensuu (Finland); Leinonen, A.; Virkkunen, M.; Heiskanen, V.-P. [VTT Technical Research Centre of Finland, Jyvaeskylae (Finland); Ranta, T.; Heinimoe, J.; Kaessi, T.; Ojanen, V.; Pakarinen, V. [Lappeenranta Univ. of Technology (Finland)

    2007-07-01

    The aim of the project is to provide for Finnish bioenergy technology, machine and appliance manufactures information about forest fuel resources in EU and international bioenergy trade mechanism. The projects results act as an instrument for market potential assessments and provide information to the local energy producer about biomass as an energy source. The possibilities to use forest chips in CHP and heating plants will be investigated in the case studies. Total number of case studies will be 3-4, and they will mainly be located in Eastern Europe, where also large forest resources and utilization potential are found. Casestudies include three main tasks: (1) Assessment of forest fuel resources around the CHP or heating plant. (2) Forest fuel procurement cost study and (3) Study on the economics forest fuel based energy production. The project will be carried out as co-operation between Finnish research institutes and companies, and local actors. First case study was carried out at Poland and the second case study country was the Czech Republic. (orig.)

  13. A VAM thread for line pipe J-LAY operations

    Energy Technology Data Exchange (ETDEWEB)

    Peter, Jean-Pierre [Vallourec Mannesmann Oil and Gas, Boulogne (France)

    2000-07-01

    Following increasing demand for line pipe in deep sea water, Bouygues Off-Shore and Vallourec Mannesmann Oil and Gas France have decided to develop and promote an innovative VAM threaded connection, to be implemented according to J-Lay method. The paper is addressing first the application that we decided to cover. The designed solution and its specificities compared to standard premium threads for vertical completions is described in detail. The qualification process of the product to confirm its leak tightness performance envelope and to validate its operational performances is presented. Finally, the paper is providing the running and pipe laying procedures of such concept and is giving inputs to a general trade-off between a conventional welded solution and such 'threaded line pipe' option. (author)

  14. Application of pipe-joint technology in Kaoshantun Reservoir dam concrete cut-off wall construction%接头管法在靠山屯水库大坝混凝土防渗墙施工中的应用

    Institute of Scientific and Technical Information of China (English)

    金文

    2016-01-01

    本文以辽宁锦州义县靠山屯水库大坝混凝土防渗墙施工为例,针对接头施工质量难控制问题,对接头管法施工工艺中接头管下设、拔管时机控制与起拔力确定等关键技术进行了阐述分析,并结合工程实际,提出了混凝土防渗墙接头管施工常见问题及其解决措施,以期对此类地下连续墙施工有所借鉴。%In the paper,Liaoning Jinzhou Kaoshantun Reservoir dam concrete cut-off wall construction is adopted as an example.The key technologies of pipe-joint installation,pipe removal timing control,removal force datermination,etc. during pipe-joint technology construction process are described and analyzed aiming at difficult quality control in joint construction.Engineering practice is combined for proposing common problems and solutions in concrete cut-off wall pipe-joint construction,thereby providing reference for similar underground continuous wall construction.

  15. Aeronautical tubes and pipes

    Science.gov (United States)

    Beauclair, N.

    1984-12-01

    The main and subcomponent French suppliers of aircraft tubes and pipes are discussed, and the state of the industry is analyzed. Quality control is essential for tubes with regard to their i.d. and metallurgical compositions. French regulations do not allow welded seam tubes in hydraulic circuits unless no other form is available, and then rustproofed steel must be installed. The actual low level of orders for any run of tubes dictates that the product is only one of several among the manufacturers' line. Automation, both in NDT and quality control, assures that the tubes meet specifications. A total of 10 French companies participate in the industry, serving both civil and military needs, with some companies specializing only in titanium, steel, or aluminum materials. Concerns wishing to enter the market must upgrade their equipment to meet the higher aeronautical specifications and be prepared to furnish tubes and pipes that serve both functional and structural purposes simultaneously. Additionally, pipe-bending machines must also perform to tight specifications. Pipes can range from 0.2 mm exterior diameter to 40 mm, with wall thicknesses from 0.02 mm to 3 mm. A chart containing a list of manufacturers and their respective specifications and characteristics is presented, and a downtrend in production with reduction of personnel is noted.

  16. Heat-pipe planets

    Science.gov (United States)

    Moore, William B.; Simon, Justin I.; Webb, A. Alexander G.

    2017-09-01

    Observations of the surfaces of all terrestrial bodies other than Earth reveal remarkable but unexplained similarities: endogenic resurfacing is dominated by plains-forming volcanism with few identifiable centers, magma compositions are highly magnesian (mafic to ultra-mafic), tectonic structures are dominantly contractional, and ancient topographic and gravity anomalies are preserved to the present. Here we show that cooling via volcanic heat pipes may explain these observations and provide a universal model of the way terrestrial bodies transition from a magma-ocean state into subsequent single-plate, stagnant-lid convection or plate tectonic phases. In the heat-pipe cooling mode, magma moves from a high melt-fraction asthenosphere through the lithosphere to erupt and cool at the surface via narrow channels. Despite high surface heat flow, the rapid volcanic resurfacing produces a thick, cold, and strong lithosphere which undergoes contractional strain forced by downward advection of the surface toward smaller radii. We hypothesize that heat-pipe cooling is the last significant endogenic resurfacing process experienced by most terrestrial bodies in the solar system, because subsequent stagnant-lid convection produces only weak tectonic deformation. Terrestrial exoplanets appreciably larger than Earth may remain in heat-pipe mode for much of the lifespan of a Sun-like star.

  17. [Piping cinnamon] 791

    OpenAIRE

    W L H Skeen and Co

    2003-01-01

    279 x 211 mm. Showing female workers making cinnamon pipes. The cinnamon is placed on a low tripod formed from four sticks, and steadied with the operator's foot while the cuticle is scraped off with a small curved knife. Annotated '791' on the bottom right hand corner of the photograph. Date approximate.

  18. Prototype testing of heat pipes for spacecraft heat control systems

    Energy Technology Data Exchange (ETDEWEB)

    Vasil' ev, L.L.; Gil, V.V.; Zharikov, N.A.; Zelenin, V.E.; Syvorotka, O.M.; Uvarov, E.I.

    1980-05-01

    Prototype testing of heat pipes for spacecraft heat control was done on board the Interkosmos-15 satellite launched on 19 June 1976. The purpose was to gather data for optimizing the design, namely the capillary structure and the selection of heat transfer agent, as well as to verify the soundness of manufacturing technologies and test procedures. Three heat pipes were tested, each 412 mm long with a 14 mm outside diameter. All had been made of an aluminum alloy. In two pipes the capillary structure consisted of 0.6 x 0.5 mm/sup 2/ rectangular channels running axially along the inside wall, in the third pipe a 1 mm thick tubular mesh of Kh18N10T steel wire running coaxially inside served as the capillary structure. The heat transfer agent was Freon-11 in one of the first two pipes and synthetic liquid ammonia in the other two pipes. The three pipes were mounted radially around a radiator as the hub, with the test conditions controllable by means of an electric heater coil along the evaporation zone of each pipe, resistance thermometers for the evaporation zone and for the condensation zone of each, and also an external cooling fan. The radial distribution of temperature drops along the pipes was measured and the thermal fluxes were calculated, these data being indicative of the performance under conditions of weightlessness over the 0 to 70/sup 0/C temperature range. The somewhat worse performance of the heat pipe with a tubular capillary mesh inside is attributable to formation of vapor bubbles which impede the mass transfer along such an artery.

  19. PPOOLEX experiments with a modified blowdown pipe outlet

    Energy Technology Data Exchange (ETDEWEB)

    Laine, J.; Puustinen, M.; Raesaenen, A. (Lappeenranta Univ. of Technology, Nuclear Safety Research Unit (Finland))

    2009-08-15

    This report summarizes the results of the experiments with a modified blowdown pipe outlet carried out with the PPOOLEX test facility designed and constructed at Lappeenranta University of Technology. Steam was blown into the dry well compartment and from there through a vertical DN200 blowdown pipe to the condensation pool. Four reference experiments with a straight pipe and ten with the Forsmark type collar were carried out. The main purpose of the experiment series was to study the effect of a blowdown pipe outlet collar design on loads caused by chugging phenomena (rapid condensation) while steam is discharged into the condensation pool. The PPOOLEX test facility is a closed stainless steel vessel divided into two compartments, dry well and wet well. During the experiments the initial temperature level of the condensation pool water was either 20-25 or 50-55 deg. C. The steam flow rate varied from 400 to 1200 g/s and the temperature of incoming steam from 142 to 185 deg. C. In the experiments with 20-25 deg. C pool water, even 10 times higher pressure pulses were measured inside the blowdown pipe in the case of the straight pipe than with the collar. In this respect, the collar design worked as planned and removed the high pressure spikes from the blowdown pipe. Meanwhile, there seemed to be no suppressing effect on the loads due to the collar in the pool side in this temperature range. Registered loads in the pool were approximately in the same range (or even a little higher) with the collar as with the straight pipe. In the experiments with 50-55 deg. C pool water no high pressure pulses were measured inside the blowdown pipe either with the straight pipe or with the collar. In this case, more of the suppressing effect is probably due to the warmer pool water than due to the modified pipe outlet. It has been observed already in the earlier experiments with a straight pipe in the POOLEX and PPOOLEX facilities that warm pool water has a diminishing effect on

  20. Development of Exterior Anti-corrosion Coating Production Line for Large Diameter Hot Bent Pipes

    Institute of Scientific and Technical Information of China (English)

    JiaoRuyi; ZhangYing

    2004-01-01

    The epoxy powder exterior anti-corrosion coating production line for bent pipes with a single (double) course production is a technologically advanced bent pipe anti-corrosion method with cost efficiency, environment friendliness and stable coating quality. The quality of the coating on the bent pipe fully meets the requirements of the current national and industrial standards. The application of the technology has filled the gap in the bent pipe anti-corrosion coating area of China, and leads the world technologically. With this technology the coating quality of the bent pipe has greatly improved, resulting in significant social and economic benefits. With the use of the technology in various large scale pipeline projects such as the “West to East Gas Pipeline Project”, it will exhibite a greater potential in the future pipeline projects with a broad application prospect.

  1. 大型管道快速测量与建模技术研究及应用%Rapid measurement and modeling technologies of large pipes and their application

    Institute of Scientific and Technical Information of China (English)

    耿欣; 曲兴华; 江炜; 张福民; 张婷

    2013-01-01

    为了提高大尺寸管道测量效率和测量精度,搭建了一套具有快速、高精度、密集点云采集、实时数据处理等功能的扫描测量系统.基于坐标系变换理论,提出了一种数字摄影测量技术、双目结构光扫描技术和逆向工程重构建模技术的组合式测量方案,快速便捷地获得大范围高密度的物体表面点云,并利用三维重构软件对物体表面测量数据进行曲面重构,利用误差合成理论对测量及曲面重构过程中的误差进行了分析,论证了该方法在理论精度上满足工业生产对逆向工程的要求.将该组合式测量系统应用于大型锻造管道的测量重构,在效率和精度等各方面都取得了良好的效果.%In order to improve the measurement efficiency and accuracy of the large pipes, a scanning measurement system is constructed, which can realize fast, accurate and real-time data processing. Based on the coordinate system transformation, a measurement scheme is presented, which is combined with digital photogrammetry technology, binocular structured light scanning and reverse engineering reconstruction modeling technology. The system can obtain the high-density surface point clouds of the surface quickly and easily, The reconstruction of the surface measurement data is completed and error is discussed with the error analysis and synthetic theory. Results show that it can meet the requirements of the industrial production reverse engineering in the theoretical accuracy. The modular measurement system has been used for the large-scale forging pipe measurement reconstruction, and it achieved good results in terms of efficiency and accuracy.

  2. Use of pipe saks on pipeline construction

    Energy Technology Data Exchange (ETDEWEB)

    Ghio, Alberto F.M.; Caciatori, Angelo [Galvao Engenharia S.A., Sao Paulo, SP (Brazil); Ruschi, Allan A.; Santos, Felipe A. dos; Barros, Horacio B. de; Loureiro, Regis R. [PETROBRAS S.A., Rio de Janeiro, RJ (Brazil)

    2009-07-01

    The use of new technologies applied to pipeline construction and assembling, aimed at enhancing productivity has been searched by PETROBRAS, throughout its subcontractors, assemblers, by transference in the mentioned constructions. Along the construction of Cacimbas Catu Pipeline, Spread 1 A, placed between the Cacimbas Gas Treatment Station (Linhares, ES) and the future Compression Station of Sao Mateus (ES), one, by means of surveys, noticed that the length of flooded or prone to flooding areas was way superior to the ones foreseen in the basic design. One of the broadly used methods for assuring buoyancy control is concreting the pipes. Such method deeply impacts work's logistics in for instance, the pipe stringing work; in this one, a maximum load of two pipes can be transported until the area to applied, what leads to lower productivity and higher risk due to the increase of trips by heavy load trucks. As an alternative to regular concrete, the Pipe Sak System was adopted and such method improved productivity and decreased discontinuities. (author)

  3. Trading stages

    DEFF Research Database (Denmark)

    Steiner, Uli; Tuljapurkar, Shripad; Coulson, Tim

    2012-01-01

    Interest in stage-and age structured models has recently increased because they can describe quantitative traits such as size that are left out of age-only demography. Available methods for the analysis of effects of vital rates on lifespan in stage-structured models have not been widely applied ...... examples. Much of our approach relies on trading of time and mortality risk in one stage for time and risk in others. Our approach contributes to the new framework of the study of age- and stage-structured biodemography....

  4. 平板X射线成像技术在螺旋埋弧焊管检测中的应用%Application of X-ray Plate Panel Imaging Technology in the Detection of SAWH Pipe

    Institute of Scientific and Technical Information of China (English)

    吴金辉; 梁根选; 王树人; 王建华

    2011-01-01

    This paper introduced the working theory of X-ray plate panel imaging technology and its application in the flaw detection of SAWH pipe. Some advantages of this technology were summarized, such as high sensitivity,long service life, uninterrupted by magnetic field, small space occupation and small doses of radiation. The application prospect of X-ray plate panel imaging technology in quantitatively detecting flaw size was also analyzed, and pointed out that it should meet the requirement of forming 25 ~ 30 pictures per second during weld dynamic imaging, this requires high enough time resolution and little enough hysteretic nature, otherwise "tailing" phenomena will appear.%介绍了平板X射线成像技术的工作原理及其在螺旋埋弧焊管检测中的应用,总结出其具有检测灵敏度高、使用寿命长、不受磁场干扰、占用场地小、辐射剂量小等优点,分析了平板X射线成像技术在缺陷尺寸定量分析方面的应用前景,指出该技术用在焊缝动态成像检测时,需要满足每秒生成25~30帧图像的要求,这就要求要有足够高的时间分辨率及足够小的滞后特性,否则将出现"拖尾"现象.

  5. Anonymous electronic trading versus floor trading

    OpenAIRE

    Franke, Günter; Hess, Dieter

    1995-01-01

    This paper compares the attractiveness of floor trading and anonymous electronic trading systems. It is argued that in times of low information intensity the insight into the order book of the electronic trading system provides more valuable information than floor trading, but in times of high information intensity the reverse is true. Thus, the electronic system's market share in trading activity should decline in times of high information intensity. This hypothesis is tested by data on BUND...

  6. Anonymous electronic trading versus floor trading

    OpenAIRE

    Franke, Günter; Hess, Dieter

    1995-01-01

    This paper compares the attractiveness of floor trading and anonymous electronic trading systems. It is argued that in times of low information intensity the insight into the order book of the electronic trading system provides more valuable information than floor trading, but in times of high information intensity the reverse is true. Thus, the electronic system's market share in trading activity should decline in times of high information intensity. This hypothesis is tested by data on BUND...

  7. Business Associations TO ACT MORE IN TRADE DISPUTES

    Institute of Scientific and Technical Information of China (English)

    Yang Wei; Yan Manman

    2010-01-01

    @@ In order to ease the domestic pressure from the financial crisis, the United States and European countries have frequently adopted trade protectionist measures against China; from pipes, tires, seamless steel tubes, and barium chloride to ironing boards, our products have had punitive tar-iffs imposed on them.

  8. Apprentice Outline. Piping Trades PH1. Pipehanger Theory I (Marine).

    Science.gov (United States)

    Connecticut State Dept. of Education, Hartford. Div. of Vocational-Technical Schools.

    This course outline is designed for use in teaching apprentice pipehangers how to use various installation procedures needed to install hangers aboard submarines. Addressed in the individual units of the course are the following topics: job preparation, job verification, material verification, weld preparation, fit-up, inspection of completed…

  9. Uses of polythene pipe in the plumbing trade

    Directory of Open Access Journals (Sweden)

    Editorial, Equipo

    1959-08-01

    Full Text Available Not availableDesde que terminó la guerra, los plásticos tienen cada día más aplicaciones en la construcción. Para fontanería y conducciones de agua presentan muchas y diversas ventajas, si bien éstas, por diversas circunstancias, no se conocen todavía suficientemente bien.

  10. Application of PeakVue Technology on Diagnosing Faults of Bearings in Steel Pipe Rolling Mill%PeakVue 技术在诊断钢管轧机轴承故障上的应用

    Institute of Scientific and Technical Information of China (English)

    田冶; 孙玉成; 毕辛; 崔通乐; 胡军; 于国江

    2014-01-01

    介绍了应用 PeakVue 技术诊断钢管轧机减速机轴承的工作状态。通过对 F2减速机轴承进行振动监测,以及对 PeakVue 峰值的研究,准确诊断出 F2减速机轴承的劣化及损坏程度,并依此制订出此轴承的寿命周期曲线。%The operating state of the reducer bearings of the steel pipe rolling mill diagnosed by the PeakVue technology is introduced. Based on the vibration monitoring for bearings of the F2 reducer and the study on the peak values of PeakVue, the damaged or degraded condition of the F2 reducer bearings is accurately diagnosed, and thus the life cycle curve of bearings is formulated based on the diagnosis.

  11. Exchange Technology of Coupling the Ground Pipe with Standing Column Well%地埋管与新型单井耦合换热技术实例分析

    Institute of Scientific and Technical Information of China (English)

    游锋; 陈国友; 李海峰

    2013-01-01

    It is difficult to solve imbalance heat on ground heat exchanger system, and the injection of water source heat pump system have not been absolutely solved, standing column well ground heat exchange system can avoid these problems only on slight thermal transfix-ion. The exchange technology of coupling the ground pipe with standing column well, operating interchangeably, will ensure continuous opera-tion of the system stability and reliability for a long time. It can reduce the amount of investment for the project and have some practical ap-plication value.%地埋管换热系统难以解决热量不平衡问题,水源热泵系统的回灌问题也未得到良好的解决,单井循环换热系统则可通过轻微的热贯通现象很好地解决以上两个问题。采用地埋管与单井循环耦合换热技术,地埋管与单井循环交替使用能够保证系统长时间连续运行的稳定性和可靠性,为工程减少大量投资,具有一定的实际应用价值。

  12. LHCb: Beam Pipe portrait

    CERN Multimedia

    LHCb, Collaboration

    2005-01-01

    The proton beams circulate in the accelerator in Ultra High Vacuum to make them interact only with each other when colliding at the interaction point. A special beam pipe "holds" the vacuum where they pass through the LHCb detector: it has to be mechanically very strong to stand the difference in pressure between the vacuum inside it and the air in the cavern but also be as transparent as possible for the particles originating in the proton−proton collisions.

  13. LHCb: Beam Pipe

    CERN Multimedia

    LHCb, Collaboration

    2005-01-01

    The proton beams circulate in the accelerator in Ultra High Vacuum to make them interact only with each other when colliding at the interaction point. A special beam pipe "holds" the vacuum where they pass through the LHCb detector:it has to be mechanically very strong to stand the difference in pressure between the vacuum inside it and the air in the cavern but also be as transparent as possible for the particles originating in the proton−proton collisions.

  14. 46 CFR 76.33-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Piping. 76.33-15 Section 76.33-15 Shipping COAST GUARD... System, Details § 76.33-15 Piping. (a) Individual pipes shall be not less than 3/4-inch standard pipe size. (b) All piping, valves, and fittings of ferrous materials shall be protected inside and...

  15. X70M大壁厚螺旋埋弧焊管丁字焊缝工艺性能研究%Investigation on the Technological Properties of X70M Thick Wall SAWH Pipe T-shape Weld

    Institute of Scientific and Technical Information of China (English)

    蒋永峰; 王伟; 冯宗泽; 陆建刚; 任超

    2016-01-01

    X70M大壁厚螺旋埋弧焊管丁字焊缝焊接接头强度过高,经过成型器反变形易产生层状撕裂,焊缝热影响区温度过高易使焊缝组织产生脆化现象,为了确保X70M大壁厚螺旋埋弧焊管丁字焊缝焊接接头的各项性能指标,采用H08D焊丝与SJ101G焊剂匹配进行工艺试验,焊接过程中严格控制层间温度、减小焊接热输入及焊后热处理形式,通过试验得出了合理的焊接工艺。试验结果表明,按该工艺所焊试件的各项性能指标均达到API SPEC 5L PSL2标准及客户技术条件,采用此工艺已成功地生产了数万吨尼日利亚输油管线用管,效果良好。%If the welded joint strength of X70M thick wall SAWH pipe is too high, it is easy to generate backward deformation and lamellar tearing when pass through the forming machine, embrittlement phenomenon easily happen caused by too high HAZ temperature. In order to ensure the performance index of X70M thick wall SAWH pipe T-shape weld welded joints, using H08D welding wire matching with SJ101G flux to carry out process test, during the welding process strictly controlled interpass temperature, reduced the welding heat input and the form of heat treatment after welding, the reasonable welding process was obtained through experiments. The test result showed that all performance indexes of specimen by adopting the above process reach the standard API SPEC 5L PSL2 and customer technical conditions, it successfully produced tens of thousands of oil pipeline in Nigeria by adopting this technology, and the effect is good.

  16. On the Research and Application of Pipe Burst-Proof Technology%管道防爆技术的研究与应用

    Institute of Scientific and Technical Information of China (English)

    姜光远

    2014-01-01

    Based on the original heating system,the paper mainly studies on designing and manufacturinga completely independent hard-wareequipmentwith reference to preventing heatingpipeline burst technology, It doesn't need to change and affect consumers' existing system equipment. If applied to the scientific experiments, technological development and people's productivity and life, it will have a huge practical value.%本文在原有供暖系统的基础上,利用管道防爆裂技术,设计制作纯硬件独立设备,该设计不更改和影响客户现有系统设备。将此管道防爆裂技术应用于科学实验、技术开发和生产生活,都具有很好的适用价值。

  17. Experimenting with a ``Pipe'' Whistle

    Science.gov (United States)

    Stafford, Olga

    2012-04-01

    A simple pipe whistle can be made using pieces of PVC pipe. The whistle can be used to measure the resonant frequencies of open or closed pipes. A slightly modified version of the device can be used to also investigate the interesting dependence of the sound frequencies produced on the orifice-to-edge distance. The pipe whistle described here allows students in a physics of music or introductory physics course to study an example of an "edge tone" device that produces discrete sound frequencies. From their textbooks, students likely know about standing waves produced by pipes or strings, as well as the resonant frequencies for open and closed pipes. To go a bit further, they can also learn how the frequency of the sound wave depends on the orifice-to-edge distance of the wind instrument.

  18. Pits, pipes, ponds--and me.

    Science.gov (United States)

    Mara, Duncan

    2013-05-01

    My life in low-cost sanitation and low-cost wastewater treatment and the use of treated wastewater in agriculture and aquaculture really has been 'pits, pipes and ponds' - 'pits' are low-cost sanitation technologies (LCST) such as VIP latrines and pour-flush toilets; 'pipes' are low-cost sewerage, principally condominial (simplified) sewerage; and 'ponds' are low-cost wastewater treatment systems, especially waste stabilization ponds, and the use of treated wastewater in agriculture and aquaculture. 'Pits' were mainly working on World Bank LCST research projects, with fieldwork principally in Zimbabwe, 'pipes' were working on condominial sewerage projects in Brazil and disseminating this LCST to a wider global audience, and 'ponds' were waste stabilization ponds, with fieldwork mainly in Brazil, Colombia, Portugal and the United Kingdom, the development of aerated rock filters to polish facultative-pond effluents, and the human-health aspects of treated wastewater use in agriculture and aquaculture, with fieldwork in Brazil and the UK, and the application of quantitative microbial risk analysis. The paper provides a professional perspective and lessons from historical developments and gives recommended future directions based on my career working on low-cost sanitation technologies and treated wastewater use in agriculture and aquaculture.

  19. Multileg Heat-Pipe Evaporator

    Science.gov (United States)

    Alario, J. P.; Haslett, R. A.

    1986-01-01

    Parallel pipes provide high heat flow from small heat exchanger. Six parallel heat pipes extract heat from overlying heat exchanger, forming evaporator. Vapor channel in pipe contains wick that extends into screen tube in liquid channel. Rods in each channel hold wick and screen tube in place. Evaporator compact rather than extended and more compatible with existing heat-exchanger geometries. Prototype six-pipe evaporator only 0.3 m wide and 0.71 m long. With ammonia as working fluid, transports heat to finned condenser at rate of 1,200 W.

  20. Construction Technology Research Municipal Water Supply and Drainage Pipe Jacking Construction of Long-distance%市政给排水工程施工中长距离顶管施工技术研究

    Institute of Scientific and Technical Information of China (English)

    陈琳

    2014-01-01

    With the acceleration of urbanization process in China, the municipal water supply and drainage projects in urban drainage systems are also playing an increasingly important role. Municipal water supply and drainage works include three parts water, sewage and recycled water, are related to people’s daily drinking water situation. Currently, science and technology has penetrated into all walks of life among and plays an important role. Modern municipal water supply and drainage construction also affected science and technology, after the introduction of advanced technology and equipment, modern municipal water supply and drainage construction largely contributed to the development of society, for the people’s daily life has made a great contribution. Analysis and discussion of the municipal water supply and drainage construction in the long distance pipe jacking technology, hoping to play a guiding role in the theory of development for municipal drainage works.%随着我国城市化进程的不断加快,市政给排水工作在城市排水系统工程中也发挥着越来越重要的作用。市政给排水工程包括供水、排水和循环水三个部分,都关系到市民的日常饮水情况。目前,科学技术已经渗透到各行各业当中,并发挥着重要的作用。现代市政给排水施工也受到了科学技术的影响,在引入了先进的技术和设备之后,现代市政给排水施工在很大程度上促进了社会的发展,为人们的日常生活作出了巨大贡献。分析和探讨了市政给排水施工中的长距离顶管施工技术,希望可以为市政给排水工程的发展起到一定的理论指导作用。

  1. The Ningxia Trade Link

    Institute of Scientific and Technical Information of China (English)

    2010-01-01

    High-level forum helps strengthen China-Arab trade and economic cooperation Trade deals were plentiful at the first China-Arab States Economic and Trade Forum last month, with over 190 deals on investment cooperation

  2. HPFRCC - Extruded Pipes

    DEFF Research Database (Denmark)

    Stang, Henrik; Pedersen, Carsten

    1996-01-01

    as well as structural design. Material development was carried out considering both processing requirements as well as mechanical properties of the hardened material. A micro-mechanical model for the non-linear material behavior of the hardened material based on the stress-crack width or the $\\sigma...... itself. The structural modeling of the pipe was done making direct use of the $\\sigma-w$ material characterization. The processing technique developed is a novel type of extrusion combiningease of material mixing and few requirements for material pre-processingwith a high degree of accuracy and stability...

  3. Application of LBB to high energy piping systems in operating PWR

    Energy Technology Data Exchange (ETDEWEB)

    Swamy, S.A.; Bhowmick, D.C. [Westinghouse Nuclear Technology Division, Pittsburgh, PA (United States)

    1997-04-01

    The amendment to General Design Criterion 4 allows exclusion, from the design basis, of dynamic effects associated with high energy pipe rupture by application of leak-before-break (LBB) technology. This new approach has resulted in substantial financial savings to utilities when applied to the Pressurized Water Reactor (PWR) primary loop piping and auxiliary piping systems made of stainless steel material. To date majority of applications pertain to piping systems in operating plants. Various steps of evaluation associated with the LBB application to an operating plant are described in this paper.

  4. Entropy of international trades

    Science.gov (United States)

    Oh, Chang-Young; Lee, D.-S.

    2017-05-01

    The organization of international trades is highly complex under the collective efforts towards economic profits of participating countries given inhomogeneous resources for production. Considering the trade flux as the probability of exporting a product from a country to another, we evaluate the entropy of the world trades in the period 1950-2000. The trade entropy has increased with time, and we show that it is mainly due to the extension of trade partnership. For a given number of trade partners, the mean trade entropy is about 60% of the maximum possible entropy, independent of time, which can be regarded as a characteristic of the trade fluxes' heterogeneity and is shown to be derived from the scaling and functional behaviors of the universal trade-flux distribution. The correlation and time evolution of the individual countries' gross-domestic products and the number of trade partners show that most countries achieved their economic growth partly by extending their trade relationship.

  5. Heat Pipe Blocks Return Flow

    Science.gov (United States)

    Eninger, J. E.

    1982-01-01

    Metal-foil reed valve in conventional slab-wick heat pipe limits heat flow to one direction only. With sink warmer than source, reed is forced closed and fluid returns to source side through annular transfer wick. When this occurs, wick slab on sink side of valve dries out and heat pipe ceases to conduct heat.

  6. Mechanical Behaviour of Lined Pipe

    NARCIS (Netherlands)

    Hilberink, A.

    2011-01-01

    Installing lined pipe by means of the reeling installation method seems to be an attractive combination, because it provides the opportunity of eliminating the demanding welds from the critical time offshore and instead preparing them onshore. However, reeling of lined pipe is not yet proven

  7. Temperature drops in heat pipes

    Energy Technology Data Exchange (ETDEWEB)

    Saatci, A.M.; Khalifa, A.M.A.; Akyurt, M.

    1986-01-01

    The role of entrainment in limiting heat pipe power handling capacity is discussed. The effect of entrainment on the measured temperature field in the integral heat pipe of a split system solar cooker is analyzed. An experimental set-up depicting a heat loop is presented, along with test results.

  8. 管焊缝相控阵超声工程临界评定%Phased Array Ultrasonic Technology Application on Engineering Critical Assessment of Piping Welds

    Institute of Scientific and Technical Information of China (English)

    李衍

    2015-01-01

    介绍相控阵超声检测( PAUT )在工程临界评定(ECA)中的应用。利用有已知疲劳裂纹的“退役”试样,通过“亮测”和“盲测”,进行PAUT工艺评定,并将PAUT数据与TOFD、MT和VT数据进行比照。结果表明PAUT测评值可信可靠,适于ECA,也符合国际法规ASME BPVC 最新版(2013)相关要求。%The application of phased array ultrasonic testing (PAUT) technology to Engineering Critical Assessment (ECA) is described. Using some retired-for-cause samples with service-induced fatigue cracks with known height, through open and blind trials, the used phased array procedure is validated. The data obtained by PAUT is compared with the data of TOFD,MT and VT. And results show that PAUT evaluation is credible and reliable, and suitable for ECA, conforming to the related requirements of the latest edition ASME (2013).

  9. Specialist meeting on leak before break in reactor piping and vessels

    Energy Technology Data Exchange (ETDEWEB)

    Bartholome, G.; Bazant, E.; Wellein, R. [Siemens KWU, Stuttgart (Germany)] [and others

    1997-04-01

    A series of research projects sponsored by the Federal Minister for Education, Science, Research and Technology, Bonn are summarized and compared to utility, manufacturer, and vendor tests. The purpose of the evaluation was to experimentally verify Leak-before-Break behavior, confirm the postulation of fracture preclusion for piping (straight pipe, bends and branches), and quantify the safety margin against massive failure. The results are applicable to safety assessment of ferritic and austenitic piping in primary and secondary nuclear power plant circuits. Moreover, because of the wide range of the test parameters, they are also important for the design and assessment of piping in other technical plant. The test results provide justification for ruling out catastrophic fractures, even on pipes of dimensions corresponding to those of a main coolant pipe of a pressurized water reactor plant on the basis of a mechanical deterministic safety analysis in correspondence with the Basis Safety Concept (Principle of Fracture Exclusion).

  10. Guided wave technique for non-destructive testing of StifPipe

    Science.gov (United States)

    Amjad, Umar; Yadav, Susheel K.; Nguyen, Chi H.; Ehsani, Mohammad; Kundu, Tribikram

    2015-03-01

    The newly-developed StifPipe® is an effective technology for repair and strengthening of existing pipes and culverts. The wall of this pipe consists of a lightweight honeycomb core with carbon or glass fiber reinforced polymer (FRP) applied to the skin. The presence of the hollow honeycomb introduces challenges in the nondestructive testing (NDT) of this pipe. In this study, it is investigated if guided waves, excited by PZT (Lead ZirconateTitanate) transducer can detect damages in the honeycomb layer of the StifPipe®. Multiple signal processing techniques are used for in-depth study and understanding of the recorded signals. The experimental technique for damage detection in StifPipe® material is described and the obtained results are presented in this paper.

  11. Pressurized GRP pipes for hydroelectric plants; GFK-Druckrohrleitungen fuer Wasserkraftanlagen

    Energy Technology Data Exchange (ETDEWEB)

    Kiesselbach, Gerhard [Dr. Kiesselbach Consulting GmbH, Wien (Austria)

    2009-05-15

    GRP pipes have been in successful use for the pressurized pipelines of hydroelectric power plants for many years. This piping stock is notable, in particular, for its low-cost installation, operation and maintenance, in addition to its low weight, simple installation and resistance to corrosion. One can safely assume that GRP pipes will, in future, be used even more for pressurized hydroelectric power-plant piping, in which context it is essential that the corresponding operations during pipe-laying and installation are conducted in accordance with the acknowledged rules of technology and the manufacturer's guidelines. The following article is intended to provide an overview of the planning, installation, operation and maintenance of pressurized GRP pipes for hydroelectric power plants. (orig.)

  12. Trade, Investment and Innovation Performance Under New Triangle Trade Mode—— A Study Based on Technology Spillover and Absorptive Capacity%“新三角贸易”模式下的贸易、投资与创新绩效——基于知识溢出与吸收能力视角的研究

    Institute of Scientific and Technical Information of China (English)

    屈韬

    2012-01-01

    Based on data of regional FDI and inter-commodity trades, this article studies the affective aspects on domestic innovation in two contexts of introduced advanced technique and inward FDI simulated by Triangle Trade Pattern. It finds that, absorptive capacities determine local creative activities. Low level of industrial correlation hampers knowledge spillage through FDI in high-tech region. Existing technology stock satisfies tech- nical requirements of imported parts and components rather than imported capital goods, which make the digested or absorptive spillovers from the latter less. China benefits a lot from spillovers of components primarily impor- ted from Asian economies. Governments should increase R&D financial support in machinery and equipment in- dustry and import more parts from European countries and USA for wide spillover-absorptive activities favoring balanced bilateral trade.%本文采用地区细分的贸易和投资数据,从技术引进、吸引外商直接投资(FDI)两大路径研究“新三角贸易”模式下知识外溢对本土创新绩效的影响。研究表明:吸收能力是影响本土创新的关键因素;产业关联度低是制约高技术领域FDI知识溢出的重要原因。

  13. Experimental research on daylight performance of side lighting light pipe

    Institute of Scientific and Technical Information of China (English)

    WUYanpeng; MAChongfang

    2003-01-01

    Natural daylight has more and more been used in modem buildings to save building energy consumption in China. Light pipe is one of the effective way to reduce electricity consumption for lighting, it can transmit light from outdoor to the room without generating excessive heat. Experimental apparatus of side lighting light pipe is described in this paper. Light pipe for side daylighting purpose was installed in the Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education, Beijing University of Technology. It was 2.6m long, with diameters of 360mm.The performance of the light pipe for whole day had been measured. The highest iUuminance was 488lux on Dec.26,2002, obtained from the point beneath the center of the diffuser of the light pipe 1450mm. The ratio of internal illuminance to external was 0.23 %. Because it has many advantages to improve energy efficiency in buildings, light pipe will be populanzed in the near future in China.

  14. Determining the location of buried plastic water pipes from measurements of ground surface vibration

    Science.gov (United States)

    Muggleton, J. M.; Brennan, M. J.; Gao, Y.

    2011-09-01

    ‘Mapping the Underworld' is a UK-based project, which aims to create a multi-sensor device that combines complementary technologies for remote buried utility service detection and location. One of the technologies to be incorporated in the device is low-frequency vibro-acoustics, and techniques for detecting buried infrastructure, in particular plastic water pipes, are being investigated. One of the proposed techniques involves excitation of the pipe at some known location with concurrent vibrational mapping of the ground surface in order to infer the location of the remainder of the pipe. In this paper, measurements made on a dedicated pipe rig are reported. Frequency response measurements relating vibrational velocity on the ground to the input excitation were acquired. Contour plots of the unwrapped phase revealed the location of the pipe to within 0.1-0.2 m. Magnitude contour plots revealed the excitation point and also the location of the pipe end. By examining the unwrapped phase gradients along a line above the pipe, it was possible to identify the wave-type within the pipe responsible for the ground surface vibration. Furthermore, changes in the ground surface phase speed computed using this method enabled the location of the end of the pipe to be confirmed.

  15. 46 CFR 28.815 - Bilge pumps, bilge piping, and dewatering systems.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 1 2010-10-01 2010-10-01 false Bilge pumps, bilge piping, and dewatering systems. 28... REQUIREMENTS FOR COMMERCIAL FISHING INDUSTRY VESSELS Aleutian Trade Act Vessels § 28.815 Bilge pumps, bilge... fixed, self priming, powered, bilge pump, having a minimum capacity rating of 50 gallons per...

  16. 78 FR 62583 - Welded Stainless Pressure Pipe From Malaysia, Thailand, and the Socialist Republic of Vietnam...

    Science.gov (United States)

    2013-10-22

    ... of Antidumping Duty Investigations, 78 FR 35253 (June 12, 2013). On September 19, 2013, more than 25... International Trade Administration Welded Stainless Pressure Pipe From Malaysia, Thailand, and the Socialist..., 2013. FOR FURTHER INFORMATION CONTACT: Charles Riggle (Malaysia), Brandon ] Farlander (Thailand),...

  17. Opportunities and threats of WTO membership of Ukraine in foreign trade of high-technology products under conditions of co-operation with EU countries and Customs Union of Belarus, Kazakhstan, and Russia

    Directory of Open Access Journals (Sweden)

    Kyzym Mykola O.

    2014-01-01

    Full Text Available The article considers the problem of consequences of membership in the World Trade Organisation (WTO for Ukraine in foreign trade of high-technology products under conditions of co-operation with EU countries and the Customs Union of Belarus, Kazakhstan and Russia (CU. The article shows that after Ukraine joined WTO there were some rather significant reductions of tariff rates for Ukrainian products and liberalisation of access to the world markets, at the same time the internal Ukrainian market became more open for imported products. The article studies specific features and changes in the high-technology products market after Ukraine joined WTO. It analyses dynamics of volumes and specific weight of the world export-import of high-technology products and the structure of the world export and import of high technology products, including by individual countries and groups. The article makes a conclusion about a weak high-technology component of the Ukrainian export. It studies the structure of export of high-technology products of EU, CU and Ukraine. It shows that in order to develop the high-technology products market Ukraine needs to develop foreign trade with EU countries and also to continue co-operation with CU countries, in particular, with Russia. The article shows that the aerospace industry products takes the biggest specific weight in the export of high-technology products of Ukraine. It considers prospects of development of civil aircraft production in the world and Ukraine under the modern conditions. It analyses strengths and weaknesses of the aircraft construction industry and also threats and opportunities for aircraft construction of Ukraine due to external environment influence. The article shows that Ukraine cannot keep national aircraft building on its own, that is why it is necessary to develop close co-operation both with Russian enterprises and with the countries of the Western Europe. It offers recommendations on

  18. PROFIBUS-DP现场总线技术在HFW焊管机组电气系统中的应用%Application of PROFIBUS-DP Field Bus Technology in HFW Pipe Units Electrical System

    Institute of Scientific and Technical Information of China (English)

    刘换军; 王华; 王小毅

    2011-01-01

    简要介绍了工业现场总线PROFIBUS-DP系统的特点及其应用.重点介绍了某HFW机组以S7-400 CPU作为核心控制器件,使用PROFIBUS-DP现场总线技术实现了MM440变频器、主操作台0S3和S7-400西门子PLC之间的通讯技术,对系统构成、总线连接及程序设计分别进行了论述.该PROFIBUS-DP现场总线系统具有结构简单、信息量大、可靠性高、维护费用低等优点,且运行效果良好.%In this article,it briefly introduced the characteristics and application of industry field bus PROFIBUS-DP system,emphatically introduced that some units taking S7 - 400 CPU as the most important control device,using PROFIBUS-DP field bus technology realized communication between MM440 frequency converter,master operating station and S7-400 Siemens PLC.and the system components,bus connection and program design were separately expatiated. The PROFIBUS-DP field bus system possesses several advantages,such as simple structure,much information,high realiability.low maintenance cost and etc.,and its application effect is good,so it is worthy of to be promoted in welded pipe production line.

  19. New Technology Application of HUC Combined Steel Slab Piles in the Construction of Some Underground Pipe Gallery%HUC组合钢板桩新工艺在某地下综合管廊施工中的应用

    Institute of Scientific and Technical Information of China (English)

    郁雷

    2014-01-01

    基坑支护必须遵循在确保周围环境安全和基坑开挖安全的前提下做到经济合理、快速施工、方便施工的原则。结合昆山花桥国际商务城规三路、薛赵路、绿地大道综合管廊市政工程中新型HUC组合钢板桩的成功应用,通过力学计算选择了合适的HUC组合钢板桩型号,并对HUC组合钢板桩深基坑施工技术进行了详细介绍,突破了深基坑安全高效且施工成本低的限制。%Foundation excavation must follow the principle that economically rational, rapid construction, convenient construction in the precondition for ensuring the safety of excavation and foundation excavation under the safety of surrounding environment. According to the successful application of a new type of HUC combined steel sheet pile in Kunshan Huaqiao International Business City Planning Comprehensive Pipe Gallery Three Road, Xue Zhaolu Road, green space in the municipal engineering for example, calculated by mechanics, the author chooses HUC combined steel sheet piles of appropriate size. And the HUC combined steel sheet piles of deep foundation excavation construction technology is introduced in detail, which breaks through the safety of foundation excavation with high efficiency and low construction cost constraints.

  20. HPE液压垂直插入机施作钢管柱施工技术%HPE Hydraulic Vertical Inserting Machine Applied Construction Technology of Steel Pipe Column

    Institute of Scientific and Technical Information of China (English)

    朱元生

    2012-01-01

    This paper,based on the South Station in Wuhan Metro Steel Pipe Column construction practice,discusses in detail the vertical insertion of the HPE hydraulic facilities for steel column construction process principles,processes,operating points and quality control requirements.Test data proves that the advanced technology is reliable,can assure quality,solving problems in the traditional steel column installation such as no assurance of the security of artificial positioning,the complex construction process,long duration,high cost,and reduces the construction period of South Station by five months,to break the constraints bottleneck of duration%结合武汉地铁中南路站钢管柱施工实践,详细论述了HPE液压垂直插入机施作钢管柱施工技术的工艺原理、工艺流程、操作要点和质量控制要求。检测数据证明,该技术先进可靠,能保证质量,突破了传统钢柱安装人工定位存在的安全不能保障、施工工序复杂、工期比较长、成本较高等诸多难题,并使中南路车站施工工期提前了5个月,打破了工期制约的瓶颈。

  1. Promethus Hot Leg Piping Concept

    Energy Technology Data Exchange (ETDEWEB)

    AM Girbik; PA Dilorenzo

    2006-01-24

    The Naval Reactors Prime Contractor Team (NRPCT) recommended the development of a gas cooled reactor directly coupled to a Brayton energy conversion system as the Space Nuclear Power Plant (SNPP) for NASA's Project Prometheus. The section of piping between the reactor outlet and turbine inlet, designated as the hot leg piping, required unique design features to allow the use of a nickel superalloy rather than a refractory metal as the pressure boundary. The NRPCT evaluated a variety of hot leg piping concepts for performance relative to SNPP system parameters, manufacturability, material considerations, and comparison to past high temperature gas reactor (HTGR) practice. Manufacturability challenges and the impact of pressure drop and turbine entrance temperature reduction on cycle efficiency were discriminators between the piping concepts. This paper summarizes the NRPCT hot leg piping evaluation, presents the concept recommended, and summarizes developmental issues for the recommended concept.

  2. Neuromarketing as the tool of trading

    OpenAIRE

    Sokolova, Antonina

    2013-01-01

    The article discusses the concepts and technology of neuromarketing in the marketing communications as well as modern mechanisms of manipulating the consumer. It defines the role of neuromarketing techniques for the development of trade service.

  3. Neuromarketing as the tool of trading

    OpenAIRE

    Sokolova, Antonina

    2013-01-01

    The article discusses the concepts and technology of neuromarketing in the marketing communications as well as modern mechanisms of manipulating the consumer. It defines the role of neuromarketing techniques for the development of trade service.

  4. Minimization of the negative influence on the biosphere in heavy oil extraction and ecologically clean technology for the injection of the steam with supercritical parameters in oil strata on the basis of new ecologically clean tubing pipes with heat-resistant coatings

    Science.gov (United States)

    Komkov, M. A.; Moiseev, V. A.; Tarasov, V. A.; Timofeev, M. P.

    2015-12-01

    Some ecological problems related to heavy-oil extraction and ways for minimizing the negative impacts of this process on the biosphere are discussed. The ecological hazard of, for example, frequently used multistage hydraulic fracturing of formation is noted and the advantages and perspectives of superheated steam injection are considered. Steam generators of a new type and ecologically clean and costeffective insulating for tubing pipes (TPs) are necessary to develop the superheated steam injection method. The article is devoted to solving one of the most important and urgent tasks, i.e., the development and usage of lightweight, nonflammable, environmentally safe, and cost-effective insulating materials. It is shown that, for tubing shielding operating at temperatures up to 420°C, the most effective thermal insulation is a highly porous material based on basalt fiber. The process of filtration deposition of short basalt fibers with a bunch of alumina thermal insulation tubing pipe coatings in the form of cylinders and cylindrical shells from liquid pulp is substantiated. Based on the thermophysical characteristics of basalt fibers and on the technological features of manufacturing highly porous coating insulation, the thickness of a tubing pipe is determined. During the prolonged pumping of the air at an operating temperature of 400°C in the model sample of tubing pipes with insulation and a protective layer, we find that the surface temperature of the thermal barrier coating does not exceed 60°C. Introducing the described technology will considerably reduce the negative impact of heavy-oil extraction on the biosphere.

  5. The influences of soil and nearby structures on dispersion characteristics of wave propagating along buried plastic pipes

    Science.gov (United States)

    Liu, Shuyong; Jiang, J.; Parr, Nicola

    2016-09-01

    Water loss in distribution systems is a global problem for the water industry and governments. According to the international water supply association (IWSA), as a result of leaks from distribution pipes, 20% to 30% of water is lost while in transit from treatment plants to consumers. Although governments have tried to push the water industry to reduce the water leaks, a lot of experts have pointed out that a wide use of plastic pipes instead of metal pipes in recent years has caused difficulties in the detection of leaks using current acoustic technology. Leaks from plastic pipes are much quieter than traditional metal pipes and comparing to metal pipes the plastic pipes have very different coupling characteristics with soil, water and surrounding structures, such as other pipes, road surface and building foundations. The dispersion characteristics of wave propagating along buried plastic pipes are investigated in this paper using finite element and boundary element based models. Both empty and water- filled pipes were considered. Influences from nearby pipes and building foundations were carefully studied. The results showed that soil condition and nearby structures have significant influences on the dispersion characteristics of wave propagating along buried plastic pipes.

  6. International red meat trade.

    Science.gov (United States)

    Brester, Gary W; Marsh, John M; Plain, Ronald L

    2003-07-01

    The maturation of the US beef and pork markets and increasing consumer demands for convenience, safety, and nutrition suggests that the beef and pork industries must focus on product development and promotion. New marketing arrangements are developing that help coordinate production with consumer demands. The relative high levels of incomes in the United States are likely to increase the demands for branded products rather than increase total per capita consumption. Foreign markets represent the greatest opportunity for increased demand for commodity beef and pork products. Increasing incomes in developing countries will likely allow consumers to increase consumption of animal-source proteins. Real prices of beef and pork have declined substantially because of sagging domestic demand and increasing farm-level production technologies. Increasing US beef and pork exports have obviated some of the price declines. Pork attained a net export position from a quantity perspective in 1995. The United States continues to be a net importer of beef on a quantity basis but is close to becoming a net exporter in terms of value. By-products continue to play a critical role in determining the red meat trade balance and producer prices. The United States, however, must continue to become cost, price, and quality competitive with other suppliers and must secure additional market access if it is to sustain recent trade trends. Several trade tensions remain in the red meat industry. For example, mandated COOL will undoubtedly have domestic and international effects on the beef and pork sectors. Domestically, uncertainty regarding consumer demand responses or quality perceptions regarding product origin, as well as added processor-retailer costs will be nontrivial. How these factors balance out in terms of benefits versus costs to the industry is uncertain. From an international perspective, some beef and pork export suppliers to the United States could view required labeling as a

  7. 75 FR 68808 - Agency Information Collection Activities: Free Trade Agreements

    Science.gov (United States)

    2010-11-09

    ... Information Collection Activities: Free Trade Agreements AGENCY: U.S. Customs and Border Protection...: Free Trade Agreements. This is a proposed extension of an information collection that was previously... other technological techniques or other forms of information. Title: Free Trade Agreements. OMB Number...

  8. Analysis of the factors of China's service trade exports in the information technology era%在科技信息时代下对我国服务贸易出口的因素分析

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    On the background of the improvement of science and technology,the exports of Service Trade is developing.This paper mainly discusses the influence factors of exports of Service Trade and makes an empirical analysis of these factors with Grey Correlation Analysis and the data used in this paper is from 2008 to 2012.The paper analyses five main factors including the degree of market liberalization、the level of urbanization、the level of service development、FDI and exports of Goods Trade.These factors have effects on the exports of Service Trade.The result of the Grey Correlation Analysis shows that exports of Goods Trade affects more than other influencing factors, then is degree of market liberalization、FDI、the level of service development、the level of urbanization respectively.This will offer some useful strategies to enlarge the exports Service Trade.%  在科技信息时代背景之下,科学技术不断迅猛发展,利用信息技术手段,我国服务贸易出口得到了不断发展。本文分析了科技信息时代下影响中国服务贸易出口的因素,并对这些因素运用灰色关联分析法进行分析,采用2008-2012年的数据,分析了服务市场的开放程度、城市化水平、服务业的发展水平、外商对华的直接投资以及货物贸易出口额等五个影响因素对服务贸易出口影响的大小。最后提出利用科技信息扩大服务贸易出口的相应对策。

  9. Microstructure and Mechanical Properties of J55ERW Steel Pipe Processed by On-Line Spray Water Cooling

    Directory of Open Access Journals (Sweden)

    Zejun Chen

    2017-04-01

    Full Text Available An on-line spray water cooling (OSWC process for manufacturing electric resistance welded (ERW steel pipes is presented to enhance their mechanical properties and performances. This technique reduces the processing needed for the ERW pipe and overcomes the weakness of the conventional manufacturing technique. Industrial tests for J55 ERW steel pipe were carried out to validate the effectiveness of the OSWC process. The microstructure and mechanical properties of the J55 ERW steel pipe processed by the OSWC technology were investigated. The optimized OSWC technical parameters are presented based on the mechanical properties and impact the performance of steel pipes. The industrial tests show that the OSWC process can be used to efficiently control the microstructure, enhance mechanical properties, and improve production flexibility of steel pipes. The comprehensive mechanical properties of steel pipes processed by the OSWC are superior to those of other published J55 grade steels.

  10. 46 CFR 95.15-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Piping. 95.15-15 Section 95.15-15 Shipping COAST GUARD... Dioxide Extinguishing Systems, Details § 95.15-15 Piping. (a) The piping, valves, and fittings shall have a bursting pressure of not less than 6,000 pounds per square inch. (b) All piping, in nominal...

  11. 46 CFR 154.520 - Piping calculations.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Piping calculations. 154.520 Section 154.520 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS... Process Piping Systems § 154.520 Piping calculations. A piping system must be designed to meet...

  12. 46 CFR 108.475 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Piping. 108.475 Section 108.475 Shipping COAST GUARD... Extinguishing Systems Foam Extinguishing Systems § 108.475 Piping. (a) Each pipe, valve, and fitting in a foam... to remove liquid from the system. (e) Piping in a foam extinguishing system must be used only...

  13. 14 CFR 27.1123 - Exhaust piping.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Exhaust piping. 27.1123 Section 27.1123... STANDARDS: NORMAL CATEGORY ROTORCRAFT Powerplant Exhaust System § 27.1123 Exhaust piping. (a) Exhaust piping... operating temperatures. (b) Exhaust piping must be supported to withstand any vibration and inertia loads...

  14. 46 CFR 197.336 - Pressure piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Pressure piping. 197.336 Section 197.336 Shipping COAST... GENERAL PROVISIONS Commercial Diving Operations Equipment § 197.336 Pressure piping. Piping systems that... must— (a) Meet the ANSI Code; (b) Have the point of connection to the integral piping system of...

  15. 46 CFR 64.95 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Piping. 64.95 Section 64.95 Shipping COAST GUARD... SYSTEMS Cargo Handling System § 64.95 Piping. (a) Piping, valves, flanges, and fittings used in the... the piping system must comply with § 56.60-25(c) of this chapter....

  16. 46 CFR 76.23-20 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Piping. 76.23-20 Section 76.23-20 Shipping COAST GUARD... System, Details § 76.23-20 Piping. (a) All piping, valves, and fittings shall meet the applicable requirements of subchapter F (Marine Engineering) of this chapter. (b) All piping, valves, and fittings...

  17. 46 CFR 95.17-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Piping. 95.17-15 Section 95.17-15 Shipping COAST GUARD... Extinguishing Systems, Details § 95.17-15 Piping. (a) All piping, valves, and fittings shall meet the applicable requirements of Subchapter F (Marine Engineering) of this chapter. (b) All piping, valves, and fittings...

  18. 46 CFR 76.17-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Piping. 76.17-15 Section 76.17-15 Shipping COAST GUARD... Systems, Details § 76.17-15 Piping. (a) All piping, valves, and fittings shall meet the applicable requirements of subchapter F (Marine Engineering) of this chapter. (b) All piping, valves, and fittings...

  19. 46 CFR 193.15-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Piping. 193.15-15 Section 193.15-15 Shipping COAST GUARD... Dioxide Extinguishing Systems, Details § 193.15-15 Piping. (a) The piping, valves, and fittings shall have a bursting pressure of not less than 6,000 pounds per square inch. (b) All piping, in nominal...

  20. Investigation of high-frequency pipe welding

    Science.gov (United States)

    Konovalov, Nikolai A.; Lakhno, Nikolay I.; Gushchin, A. G.; Putryk, N. D.; Kovalenko, Vladimir I.; Galkina, V. A.; Veselovsky, Vladimir B.; Furmanov, Valeri B.; Kovika, Nikolai D.; Novikov, Leonid V.; Shcherbina, V. N.

    1993-01-01

    For investigation of a pipe welding process at high-frequency heating aimed at increasing of pipe quality and decreasing of spoilage, the use of high-speed recording and TV-technique is considered to be effective. The authors have created a visual inspection system for pipe welding process studies at a tube mill of the Novomoskovsk Pipe Plant.

  1. 49 CFR 192.281 - Plastic pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Plastic pipe. 192.281 Section 192.281... Plastic pipe. (a) General. A plastic pipe joint that is joined by solvent cement, adhesive, or heat fusion may not be disturbed until it has properly set. Plastic pipe may not be joined by a threaded joint...

  2. 49 CFR 195.114 - Used pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Used pipe. 195.114 Section 195.114 Transportation... PIPELINE Design Requirements § 195.114 Used pipe. Any used pipe installed in a pipeline system must comply with § 195.112 (a) and (b) and the following: (a) The pipe must be of a known specification and the...

  3. 49 CFR 195.112 - New pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false New pipe. 195.112 Section 195.112 Transportation... PIPELINE Design Requirements § 195.112 New pipe. Any new pipe installed in a pipeline system must comply with the following: (a) The pipe must be made of steel of the carbon, low alloy-high strength, or alloy...

  4. 49 CFR 192.55 - Steel pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Steel pipe. 192.55 Section 192.55 Transportation... BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS Materials § 192.55 Steel pipe. (a) New steel pipe is... in accordance with paragraph (c) or (d) of this section. (b) Used steel pipe is qualified for use...

  5. Research and practice on the water supply pipe explosion prewarning and locating technology%供水管网爆管预警及定位技术的研究与实践

    Institute of Scientific and Technical Information of China (English)

    何芳; 林建敏; 吴迪; 吴家兵; 杨伟明; 梁宇舜

    2012-01-01

    针对爆管事故前控制引入风险管理方法,提出了爆管风险预警的技术路线;针对爆管事故后处理提出了爆管点快速定位技术路线,并进行了实际管网模拟试验.研究及实践结果表明,通过爆管风险评估、爆管风险地图绘制可以起到预警作用;通过压力监控辅以管网水力模型的模拟分析可以有效地提示爆管发生的区域及定位,为爆管事故后快速反应赢得宝贵的时间.%To control the pipe explosion before the accident, this paper introduced the risk management method and brought forward the prewarning technical route for pipe explosion. For the sake of treatment after pipe explosion, this paper brought forward the technical route for rapid locating of the explosion point and carried out the practical network modeling. The research and practice result showed: through pipe explosion risk evaluation, the pipe explosion risk map drawing could prewarn the accident; through pressure monitoring system aided by network hydraulic model, the modeling analysis could inform the area and location of the pipe explosion, which could save the time for rapid reaction after the accident.

  6. Loop Heat Pipe Startup Behaviors

    Science.gov (United States)

    Ku, Jentung

    2016-01-01

    A loop heat pipe must start successfully before it can commence its service. The startup transient represents one of the most complex phenomena in the loop heat pipe operation. This paper discusses various aspects of loop heat pipe startup behaviors. Topics include the four startup scenarios, the initial fluid distribution between the evaporator and reservoir that determines the startup scenario, factors that affect the fluid distribution between the evaporator and reservoir, difficulties encountered during the low power startup, and methods to enhance the startup success. Also addressed are the pressure spike and pressure surge during the startup transient, and repeated cycles of loop startup and shutdown under certain conditions.

  7. Applicability Assessment on LBB Application in High Temperature Sodium Piping

    Institute of Scientific and Technical Information of China (English)

    WANG; Yue-ying; LIU; Jia

    2015-01-01

    LBB has been an important technology for ensuring security and stability of reactor structure after 30years of application and development,and is applied widely in PWR.Primary research on LBB application in sodium piping has been done after China first fast reactor—CEFR

  8. Nitrogen heat pipe for cryocooler thermal shunt

    Energy Technology Data Exchange (ETDEWEB)

    Prenger, F.C.; Hill, D.D.; Daney, D.E.; Daugherty, M.A. [Los Alamos National Lab., NM (United States); Green, G.F.; Roth, E.W. [Naval Surface Warfare Center, Annapolis, MD (United States)

    1995-09-01

    A nitrogen heat pipe was designed, built and tested for the purpose of providing a thermal shunt between the two stages of a Gifford-McMahan (GM) cryocooler during cooldown. The nitrogen heat pipe has an operating temperature range between 63 and 123 K. While the heat pipe is in the temperature range during the system cooldown, it acts as a thermal shunt between the first and second stage of the cryocooler. The heat pipe increases the heat transfer to the first stage of the cryocooler, thereby reducing the cooldown time of the system. When the heat pipe temperature drops below the triple point, the nitrogen working fluid freezes, effectively stopping the heat pipe operation. A small heat leak between cryocooler stages remains because of axial conduction along the heat pipe wall. As long as the heat pipe remains below 63 K, the heat pipe remains inactive. Heat pipe performance limits were measured and the optimum fluid charge was determined.

  9. Heat Pipe Solar Receiver for Oxygen Production of Lunar Regolith Project

    Data.gov (United States)

    National Aeronautics and Space Administration — This Small Business Innovative Research project by Advanced Cooling Technologies, Inc. (ACT) will develop an advanced high temperature heat pipe solar receiver that...

  10. Heat Pipe Heat Exchangers with Double Isolation Layers for Prevention of Interpath Leakage Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Advanced Cooling Technologies, Inc. (ACT), supported by Hamilton Sundstrand, proposes to develop a heat pipe heat exchanger that is low mass and provides two levels...

  11. A Retrospective Evaluation of Cured-in-Place Pipe (CIPP) Used in Municipal Gravity Sewers

    Science.gov (United States)

    Pipe rehabilitation and trenchless replacement technologies have seen a steadily increasing use and represent an increasing proportion of the annual expenditure on operations and maintenance of the nation’s water and wastewater infrastructure. Despite public investment in use of...

  12. Trade, development and sustainability

    DEFF Research Database (Denmark)

    Røpke, Inge

    1994-01-01

    Mainstream economic theory argues that trade, and especially free trade, is beneficial to everyone involved. This fundamental idea ? which has the character of a dogma ? still plays an important role in international discussions on trade issues, notably in relation to development and environment....... The purpose of this article is to critically assess the "free trade dogma" and to investigate the validity of widely used arguments concerning the relations between trade and development and between trade and environment. It is argued that the trading system is not something inherently good, which should...... be defended in all cases. Especially, the developing countries' benefits from trade have been very dubious. Furthermore, the trading system has contributed to environmental problems in several ways, e.g. generating undervaluation of natural resources, stimulating economic growth with environmental...

  13. 49 CFR 192.279 - Copper pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Copper pipe. 192.279 Section 192.279... Copper pipe. Copper pipe may not be threaded except that copper pipe used for joining screw fittings or... heavier wall pipe listed in Table C1 of ASME/ANSI B16.5. [Amdt. 192-62, 54 FR 5628, Feb. 6, 1989, as...

  14. B Plant process piping replacement feasibility study

    Energy Technology Data Exchange (ETDEWEB)

    Howden, G.F.

    1996-02-07

    Reports on the feasibility of replacing existing embedded process piping with new more corrosion resistant piping between cells and between cells and a hot pipe trench of a Hanford Site style canyon facility. Provides concepts for replacement piping installation, and use of robotics to replace the use of the canyon crane as the primary means of performing/supporting facility modifications (eg, cell lining, pipe replacement, equipment reinstallation) and operational maintenenace.

  15. Guided UT wave inspection of insulated feedwater piping using magnetostrictive sensors

    Science.gov (United States)

    Brophy, J. W.; Brett, Colin R.

    1996-11-01

    Due to failures in power plant feedwater piping, inspection of these components has become a priority item. The major reason for the failures is wall loss due to flow-accelerated corrosion on the inside diameter (ID) of the pipes. It can be very costly to use standard nondestructive testing (NDT) techniques for a comprehensive inspection due to the need to remove large areas of insulation. Guided UT waves can travel through the pipe over long distances and detect cross- sectional changes in the pipe wall with minimal insulation removal. This makes the guided UT wave an excellent candidate for locating significant wall loss due to corrosion and pitting. Southwest Research Institute (SwRI) has developed a simple and robust technology for generating and receiving guided UT waves based on magnetorestrictive sensors. Signals are generated and detected in the pipe via multi-turn coils acting as transmitters and receivers. Insulation removal is only required where the coils are attached to the pipe and this allows many meters of pipe to be inspected from a single location. Guided UT waves detect cross-sectional changes from corrosion on both the ID and outside diameter of the pipe and can also be used to map weld locations. This paper describes SwRIs systems and the preliminary results from testing on a feedwater pipe mockup containing simulated flow-accelerated corrosion.

  16. POSSIBILITIES OF THE USE OF GRP PIPING IN THE CONSTRUCTION AND RECONSTRUCTION OF ENGINEERING NETWORKS

    Directory of Open Access Journals (Sweden)

    ikitina Irina Nikolaevna

    2015-12-01

    Full Text Available Today in modern construction new technologies and materials are used for the manufacture of pipelines for water supply and sanitation. They are supposed to operate for at least 50 years. Unlike plastic pipes, fiberglass ones may be made of larger sizes — up to 3700 mm in diameter. They are produced using the technology of optical fiber winding, which is carried out according to modern international standards of quality. The basic raw materials — fiberglass and resin — are produced in Russia, but their production is limited, so they are purchased abroad, which increases the cost of manufacture of this type of piping. However, due to the necessity of laying pipelines of large diameter, which cannot be made with plastic pipes, the manufacture of GRP pipes will increase. The experience of laying and constructing this type of pipelines, for example, in the areas of hot water supply allows concluding that they are able to withstand the temperatures of up to 150 °C, while their weight is four times less than the weight of steel pipes (they are easily installed with the help of small lifting equipment and by a team of six people. It should be noted that the use of fiberglass pipes helps to reduce the costs of system operation, because this type of piping is not subject to corrosion and encrustation of the inner surface, since it has a low level of roughness, which, for example, is 0.013 for a steel pipe, and 0.01 for fiberglass pipe. Thus, it is not necessary to put protective corrosion-resistant coatings and to provide an expensive protection against electrochemical corrosion. Piping made of fiberglass pipes can be designed as underground, above-ground with stacking or raised on poles. It is possible to combine these options.

  17. Simulation of Welding of Thin-Walled Pipe

    Directory of Open Access Journals (Sweden)

    Marek GEBAUER

    2013-12-01

    Full Text Available The presented paper deals with the residual stress after a welding operation performed by using the TIG method. It was necessary to determine whether or not tension plays a major role in the distortion of the geometry of a thin-walled pipe, or in other words, whether the drawing dimension of the ovality exceeds the specified tolerance. The result of this simulation will help to determine whether or not designers will have to find another technological solution to complete parts. The assembly consists of three parts: the weld bead, thin-walled pipe, and hoop, which are connected by welds as a final product.

  18. Advanced radiator concepts utilizing honeycomb panel heat pipes (stainless steel)

    Science.gov (United States)

    Fleischman, G. L.; Tanzer, H. J.

    1985-08-01

    The feasibility of fabricating and processing moderate temperature range heat pipes in a low mass honeycomb sandwich panel configuration for highly efficient radiator fins for the NASA space station was investigated. A variety of honeycomb panel facesheet and core-ribbon wick concepts were evaluated within constraints dictated by existing manufacturing technology and equipment. Concepts evaluated include: type of material, material and panel thicknesses, wick type and manufacturability, liquid and vapor communication among honeycomb cells, and liquid flow return from condenser to evaporator facesheet areas. In addition, the overall performance of the honeycomb panel heat pipe was evaluated analytically.

  19. Testing of Stirling engine solar reflux heat-pipe receivers

    Energy Technology Data Exchange (ETDEWEB)

    Rawlinson, S.; Cordeiro, P.; Dudley, V.; Moss, T.

    1993-07-01

    Alkali metal heat-pipe receivers have been identified as a desirable interface to couple a Stirling-cycle engine with a parabolic dish solar concentrator. The reflux receiver provides power nearly isothermally to the engine heater heads while de-coupling the heater head design from the solar absorber surface design. The independent design of the receiver and engine heater head leads to high system efficiency. Heat pipe reflux receivers have been demonstrated at approximately 30 kW{sub t} power throughput by others. This size is suitable fm engine output powers up to 10 kW{sub e}. Several 25-kW{sub e}, Stirling-cycle engines exist, as well as designs for 75-kW{sub t} parabolic dish solar concentrators. The extension of heat pipe technology from 30 kW{sub t} to 75 kW{sub t} is not trivial. Heat pipe designs are pushed to their limits, and it is critical to understand the flux profiles expected from the dish, and the local performance of the wick structure. Sandia has developed instrumentation to monitor and control the operation of heat pipe reflux receivers to test their throughput limits, and analytical models to evaluate receiver designs. In the past 1.5 years, several heat pipe receivers have been tested on Sandia`s test bed concentrators (TBC`s) and 60-kW{sub t} solar furnace. A screen-wick heat pipe developed by Dynatherm was tested to 27.5 kW{sub t} throughput. A Cummins Power Generation (CPG)/Thermacore 30-kW{sub t} heat pipe was pushed to a throughput of 41 kW{sub t} to verify design models. A Sandia-design screen-wick and artery 75-kW{sub t} heat pipe and a CPG/Thermacore 75-kW{sub t} sintered-wick heat pipe were also limit tested on the TBC. This report reviews the design of these receivers, and compares test results with model predictions.

  20. Redirecting International Trade

    DEFF Research Database (Denmark)

    Kokko, Ari; Söderlund, Bengt; Tingvall, Patrik Gustavsson

    The global financial crisis has accelerated the redirection of trade towards new markets, outside the OECD area, where both demand patterns and the institutional environment differ from those in the OECD. This study provides an empirical examination of the consequences of this shift. Results...... difficult to redirect towards markets with weak institutions....... suggest that weak institutions hamper trade and reduces the length of trade relations, especially for small firms. Furthermore, trade in industries that are characterized by a high degree of trade conflicts and that requires extensive relationship specific investments for trade to occur are comparatively...

  1. Redirecting International Trade

    DEFF Research Database (Denmark)

    Kokko, Ari; Söderlund, Bengt; Tingvall, Patrik Gustavsson

    2014-01-01

    The global financial crisis has contributed to the redirection of trade towards new markets outside the OECD area, where both demand patterns and the institutional environment differ from those in the OECD. This study provides an empirical examination of the consequences of this shift, based......-specific investments are particularly difficult to redirect towards markets with weak institutions....... on Swedish firm-level trade data. Results suggest that weak institutions hamper trade and reduce the length of trade relations, especially for small firms. Trade in industries that are characterized by a high frequency of trade conflicts and where transactions require extensive relationship...

  2. Reconfiguring trade mark law

    DEFF Research Database (Denmark)

    Elsmore, Matthew James

    2013-01-01

    -border setting, with a particular focus on small business and consumers. The article's overall message is to call for a rethink of received wisdom suggesting that trade marks are effective trade-enabling devices. The case is made for reassessing how we think about European trade mark law.......First, this article argues that trade mark law should be approached in a supplementary way, called reconfiguration. Second, the article investigates such a reconfiguration of trade mark law by exploring the interplay of trade marks and service transactions in the Single Market, in the cross...

  3. Efficient methods of piping cleaning

    OpenAIRE

    Orlov Vladimir Aleksandrovich; Nechitaeva Valentina Anatol'evna; Bogomolova Irina Olegovna; Shaykhetdinova Yuliya Aleksandrovna; Daminova Yuliya Farikhovna

    2014-01-01

    The article contains the analysis of the efficient methods of piping cleaning of water supply and sanitation systems. Special attention is paid to the ice cleaning method, in course of which biological foil and various mineral and organic deposits are removed due to the ice crust buildup on the inner surface of water supply and drainage pipes. These impurities are responsible for the deterioration of the organoleptic properties of the transported drinking water or narrowing cross-section of d...

  4. Development and Manufacture of Cost-Effective Composite Drill Pipe

    Energy Technology Data Exchange (ETDEWEB)

    James C. Leslie

    2008-12-31

    Advanced Composite Products and Technology, Inc. (ACPT) has developed composite drill pipe (CDP) that matches the structural and strength properties of steel drill pipe, but weighs less than 50 percent of its steel counterpart. Funding for the multiyear research and development of CDP was provided by the U.S. Department of Energy Office of Fossil Energy through the Natural Gas and Oil Projects Management Division at the National Energy Technology Laboratory (NETL). Composite materials made of carbon fibers and epoxy resin offer mechanical properties comparable to steel at less than half the weight. Composite drill pipe consists of a composite material tube with standard drill pipe steel box and pin connections. Unlike metal drill pipe, composite drill pipe can be easily designed, ordered, and produced to meet specific requirements for specific applications. Because it uses standard joint connectors, CDP can be used in lieu of any part of or for the entire steel drill pipe section. For low curvature extended reach, deep directional drilling, or ultra deep onshore or offshore drilling, the increased strength to weight ratio of CDP will increase the limits in all three drilling applications. Deceased weight will reduce hauling costs and increase the amount of drill pipe allowed on offshore platforms. In extreme extended reach areas and high-angle directional drilling, drilling limits are associated with both high angle (fatigue) and frictional effects resulting from the combination of high angle curvature and/or total weight. The radius of curvature for a hole as small as 40 feet (12.2 meters) or a build rate of 140 degrees per 100 feet is within the fatigue limits of specially designed CDP. Other properties that can be incorporated into the design and manufacture of composite drill pipe and make it attractive for specific applications are corrosion resistance, non-magnetic intervals, and abrasion resistance coatings. Since CDP has little or no electromagnetic force

  5. Corrosion behavior in heat pipe

    Directory of Open Access Journals (Sweden)

    Anurak Rodbumrung

    2016-01-01

    Full Text Available The aim of this study was to perform life testing and determine the effect of working fluid on the corrosion of a heat pipe with a sintered wick. The heat pipe was made from a copper tube. The inner heat pipe was filled with 99.97% pure copper powder as a dendritic for the sintering process. The heat pipe had an outer diameter of 6 mm with a length of 200 mm, and distilled water and ethanol were the working fluids. The operating temperature at the evaporator was 125°C. The analysis consisted of using a scanning electron microscope, energy dispersive X-ray spectrometry and atomic absorption spectroscopy. The results of the scanning electron microscope and energy dispersive X-ray spectrometry analysis showed that the corrosion of the heat pipe was uniform. The result of the atomic absorption spectroscopy indicated that the concentration of the copper in the ethanol as the working fluid was greater than in the distilled water as the working fluid, and the highest concentration of copper particles in the ethanol was 22.7499 ppm or 0.0409 mg after testing for 3000 h. The concentration of copper was higher when the length of the life test increased due to corrosion of the heat pipe.

  6. A state of the art on the measurement of the radioactive contamination in the inner surface of the pipe

    Energy Technology Data Exchange (ETDEWEB)

    Seo, B. K.; Lee, K. W.; Oh, W. Z.; Woo, Z. H.; Kim, G. H

    2004-11-15

    Many radioactive wastes are produced during the decommissioning of the nuclear facilities. Their radiological characterization must be estimated for disposal and reuse. Especially, it is very difficult to measure the in-pipe surface contamination, because of the difficulty of access. So, it is necessary to develop the measurement technology for the in-pipe surface contamination. In the developed counties of the decommissioning technology such as America, Japan etc. they developed the measuring device for the in-pipe radioactive contamination and performed the capacity estimation. In this report, the state of the art on the measurement of the radioactive contamination in the inner surface of the pipe and radiation detector for measuring the each radiation(alpha, beta, and gamma) proceeding around the world was analyzed. By means of such technology analysis, we will develop the measuring technology of the radioactive contamination in the inner surface of the pipe and apply to the decommissioning sites.

  7. THE FORMATION OF THE MODIFIED CONCRETE STRUCTURE FOR PIPE COLLECTORS

    Directory of Open Access Journals (Sweden)

    V. M. Pylypenko

    2009-03-01

    Full Text Available In the article main points of developed technology of vibroimpact-pulse compaction of concrete mix for producing the pipes of sewage collectors are stated. It is shown that using the offered technology ensures the intensive growth of concrete strength at an initial period of hardening, the reduction of duration of heat treatment or its absolute avoidance, the manufacture of products with the stability and longevity of structures.

  8. The CAD System Development for Power Plants Pipe-Prefabrication

    Institute of Scientific and Technical Information of China (English)

    RUI Xiaoming; MA Zhiyong

    2006-01-01

    An intelligent design software system for the power station pipe-prefabrication (PPDS) has been developed in the paper, which is taking pipe material database as core and developed on the platform of AutoCAD and Borland C++.Whereas design and construction of power plants in China belong to different departments, the input and recognition problem of pipeline system disposition chart must be solved firstly for the prefabrication design. Based on AI technology, the model fast building subsystem (MFBS) was established for entering the 3-D pipeline graph data, so that the problems of reconstruction of pipeline digital model and computer identification of original 2-D design data can be solved. The optimization design scheme in the pipe-prefabrication process has been studied and also the corresponding algorithm put forward. The technique and system mentioned can effectively raise the pipe- prefabrication design quality and efficiency in the construction of large scale power plants, reduce the period of design and the waste of raw material. PPCADS has still offered the functions such as the construction design for pipeline prefabricated process, the detailing drawing for manufacturing pipe section and automatic generating the technical files for the completed project.

  9. Flexible mobile robot system for smart optical pipe inspection

    Science.gov (United States)

    Kampfer, Wolfram; Bartzke, Ralf; Ziehl, Wolfgang

    1998-03-01

    Damages of pipes can be inspected and graded by TV technology available on the market. Remotely controlled vehicles carry a TV-camera through pipes. Thus, depending on the experience and the capability of the operator, diagnosis failures can not be avoided. The classification of damages requires the knowledge of the exact geometrical dimensions of the damages such as width and depth of cracks, fractures and defect connections. Within the framework of a joint R&D project a sensor based pipe inspection system named RODIAS has been developed with two partners from industry and research institute. It consists of a remotely controlled mobile robot which carries intelligent sensors for on-line sewerage inspection purpose. The sensor is based on a 3D-optical sensor and a laser distance sensor. The laser distance sensor is integrated in the optical system of the camera and can measure the distance between camera and object. The angle of view can be determined from the position of the pan and tilt unit. With coordinate transformations it is possible to calculate the spatial coordinates for every point of the video image. So the geometry of an object can be described exactly. The company Optimess has developed TriScan32, a special software for pipe condition classification. The user can start complex measurements of profiles, pipe displacements or crack widths simply by pressing a push-button. The measuring results are stored together with other data like verbal damage descriptions and digitized images in a data base.

  10. Problems of Ukraine trade potential development

    Directory of Open Access Journals (Sweden)

    Sydiaga, Bohdan Volodymyrovych

    2014-05-01

    Full Text Available The current stage of Ukraine economy development dictates new requirements and rules of the mechanisms of formation and functioning of trade relations. Under the conditions of uncertainty of the external state vector, market globalization, growing competition in most sectors and areas of activity, the source of the successful development of commercial potential is the use of modern technology with low power consumption equipment. It is clear that large investments are needed to solve this problem. Traditionally foreign trade is one of the main factors of Ukraine economic dynamics. The structure of foreign trade allows to have an idea of the country competitive position in the world markets, to identify economic "niche"and development of trade relations in which it is competitive. Thus, the state and development of trade relations with key external partners have critical importance for Ukraine economic development.

  11. Trade Agreements PTI

    Data.gov (United States)

    Department of Homeland Security — The objective of the Trade Agreements PTI is to advance CBP’s mission by working with internal and external stakeholders to facilitate legitimate trade and address...

  12. Trade in goods

    DEFF Research Database (Denmark)

    2006-01-01

    An analysis of the rules governing trade in goods under the GATT agreement and the Agreement on Safeguards......An analysis of the rules governing trade in goods under the GATT agreement and the Agreement on Safeguards...

  13. The International Trade Network

    OpenAIRE

    Bhattacharya, K.; Mukherjee, G.; Manna, S. S.

    2007-01-01

    Bilateral trade relationships in the international level between pairs of countries in the world give rise to the notion of the International Trade Network (ITN). This network has attracted the attention of network researchers as it serves as an excellent example of the weighted networks, the link weight being defined as a measure of the volume of trade between two countries. In this paper we analyzed the international trade data for 53 years and studied in detail the variations of different ...

  14. BENEFITS AND DRAWBACKS OF ONLINE TRADING VERSUS TRADITIONAL TRADING. EDUCATIONAL FACTORS IN ONLINE TRADING

    Directory of Open Access Journals (Sweden)

    Petric (Iancu Ioana Ancuta

    2015-07-01

    Full Text Available In terms of marketing, online trading is a new distribution channel and trading platforms are products of Investment and Financial Services Companies. Internet shortens the connection between the investor and the products they wish to purchase (shares, futures, CFDs, government securities, bonds, etc., and in some cases it no longer needs a security broker. Increasing use of the Internet and increasing competitiveness between Investment and Financial Services Companies do the latter, to seek new distribution channels to specific products. The purpose of this paper is to examine to what extent the investor education level affects the decision to move from traditional trading to online trading and the benefits and disadvantages of these types of transactions. To whom should the Investment and Financial Services Companies guide their marketing campaign to attract more investors for online platforms? The work presented is part of a larger project that will be part of author thesis, studying other factors that influence the decision to move from traditional to online trading: cost factor, time factor, psychological and social attributes of investors, yield portfolios and technological capacities of Investment and Financial Services Companies. Starting from the idea that with the increase of experience in stock investments the investors will want to make their own decisions, Investment and Financial Services Companies should provide new products. Compared to competitors, an Investment and Financial Services Company must innovate, and information technology currently offers the tools for innovation facilities. At the same time, the existence and development of the Internet has made the transaction without assistance or with minimal human intervention possible (Voss, 2000. The difference is in the knowledge about stock market, the speed the transaction orders arrive in the stock market, direct access to multiple markets, transaction costs and the level

  15. African agricultural trade

    DEFF Research Database (Denmark)

    Jensen, Hans Grinsted; Sandrey, Ron

    2015-01-01

    This article starts with a profile of African agricultural trade. Using the pre-release version 9.2 of the GTAP database, we then show that the results for tariff elimination on intra-African trade are promising, but these tariff barriers are not as significant as the various trade-related barriers...

  16. Trade, development and sustainability

    DEFF Research Database (Denmark)

    Røpke, Inge

    1994-01-01

    Mainstream economic theory argues that trade, and especially free trade, is beneficial to everyone involved. This fundamental idea ? which has the character of a dogma ? still plays an important role in international discussions on trade issues, notably in relation to development and environment....

  17. Banking and Trading

    NARCIS (Netherlands)

    Boot, A.W.A.; Ratnovski, L.

    2016-01-01

    We study the interaction between relationship banking and short-term arm’s length activities of banks, called trading. We show that a bank can use the franchise value of its relationships to expand the scale of trading, but may allocate too much capital to trading ex post , compromising its ability

  18. Banking and Trading

    NARCIS (Netherlands)

    Boot, A.W.A.; Ratnovski, L.

    2016-01-01

    We study the interaction between relationship banking and short-term arm’s length activities of banks, called trading. We show that a bank can use the franchise value of its relationships to expand the scale of trading, but may allocate too much capital to trading ex post , compromising its ability

  19. Development Risk Methodology for Whole Systems Trade Analysis

    Science.gov (United States)

    2016-08-01

    potential risks, and estimated development times associated with each technology. The established WSTAT framework utilizes elicitation techniques with...and stakeholder value in order to inform and potentially influence requirements documents and associated specifications. The WSTA tool (WSTAT) can...exploitation, requirements definition, early cost informed trades, requirements analysis, Analysis of Alternatives (AoA), contractor trades, and technology

  20. 75 FR 44760 - Export Trade Certificate of Review

    Science.gov (United States)

    2010-07-29

    ... analysis; collection of information on trade opportunities; marketing; negotiations; joint ventures... development; management and labor strategies; transfer of technology; transportation; and facilitating the... Operation 1. With respect to the sale of Products and Services, licensing of Technology Rights and provision...

  1. Fiscal and policy implications of selling pipe tobacco for roll-your-own cigarettes in the United States.

    Science.gov (United States)

    Morris, Daniel S; Tynan, Michael A

    2012-01-01

    The Federal excise tax was increased for tobacco products on April 1, 2009. While excise tax rates prior to the increase were the same for roll-your-own (RYO) and pipe tobacco, the tax on pipe tobacco was $21.95 per pound less than the tax on RYO tobacco after the increase. Subsequently, tobacco manufacturers began labeling loose tobacco as pipe tobacco and marketing these products to RYO consumers at a lower price. Retailers refer to these products as "dual purpose" or "dual use" pipe tobacco. Data on tobacco tax collections comes from the Alcohol and Tobacco Tax and Trade Bureau. Joinpoint software was used to identify changes in sales trends. Estimates were generated for the amount of pipe tobacco sold for RYO use and for Federal and state tax revenue lost through August 2011. Approximately 45 million pounds of pipe tobacco has been sold for RYO use from April 2009 to August 2011, lowering state and Federal revenue by over $1.3 billion. Marketing pipe tobacco as "dual purpose" and selling it for RYO use provides an opportunity to avoid paying higher cigarette prices. This blunts the public health impact excise tax increases would otherwise have on reducing tobacco use through higher prices. Selling pipe tobacco for RYO use decreases state and Federal revenue and also avoids regulations on flavored tobacco, banned descriptors, prohibitions on shipping, and reporting requirements.

  2. Fiscal and policy implications of selling pipe tobacco for roll-your-own cigarettes in the United States.

    Directory of Open Access Journals (Sweden)

    Daniel S Morris

    Full Text Available BACKGROUND: The Federal excise tax was increased for tobacco products on April 1, 2009. While excise tax rates prior to the increase were the same for roll-your-own (RYO and pipe tobacco, the tax on pipe tobacco was $21.95 per pound less than the tax on RYO tobacco after the increase. Subsequently, tobacco manufacturers began labeling loose tobacco as pipe tobacco and marketing these products to RYO consumers at a lower price. Retailers refer to these products as "dual purpose" or "dual use" pipe tobacco. METHODS: Data on tobacco tax collections comes from the Alcohol and Tobacco Tax and Trade Bureau. Joinpoint software was used to identify changes in sales trends. Estimates were generated for the amount of pipe tobacco sold for RYO use and for Federal and state tax revenue lost through August 2011. RESULTS: Approximately 45 million pounds of pipe tobacco has been sold for RYO use from April 2009 to August 2011, lowering state and Federal revenue by over $1.3 billion. CONCLUSIONS: Marketing pipe tobacco as "dual purpose" and selling it for RYO use provides an opportunity to avoid paying higher cigarette prices. This blunts the public health impact excise tax increases would otherwise have on reducing tobacco use through higher prices. Selling pipe tobacco for RYO use decreases state and Federal revenue and also avoids regulations on flavored tobacco, banned descriptors, prohibitions on shipping, and reporting requirements.

  3. High temperature superconducting current lead test facility with heat pipe intercepts

    Energy Technology Data Exchange (ETDEWEB)

    Blumenfeld, P.E.; Prenger, C.; Roth, E.W.; Stewart, J.A.

    1998-12-31

    A high temperature superconducting (HTS) current lead test facility using heat pipe thermal intercepts is under development at the Superconducting Technology Center at Los Alamos National Laboratory. The facility can be configured for tests at currents up to 1,000 A. Mechanical cryocoolers provide refrigeration to the leads. Electrical isolation is maintained by intercepting thermal energy from the leads through cryogenic heat pipes. HST lead warm end temperature is variable from 65 K to over 90 K by controlling heat pipe evaporator temperature. Cold end temperature is variable up to 30 K. Performance predictions in terms of heat pipe evaporator temperature as a function of lead current are presented for the initial facility configuration, which supports testing up to 200 A. Measurements are to include temperature and voltage gradient in the conventional and HTS lead sections, temperature and heat transfer rate in the heat pipes. as well as optimum and off-optimum performance of the conventional lead sections.

  4. Balancing China-EU Economic & Trade Relations

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    @@ Accompanied by the maturing of China-EU political relations beginning in the 1990s,China-EU economic and trade relations have developed significantly each year.Now,theEU has become China's largest trading partner, as well as China's largest technology provider and fourth largest investment source for four consecutive years.China-EU cooperation has been expanded to include more than forty sectors.

  5. Price Categories Used in International Trade

    OpenAIRE

    PALIU - POPA Lucia

    2009-01-01

    In the current world economy conditions, development of any state can not be based solely on internal sources and the national economy results. Increased volume and diversification of cross-border transactions in goods and services, the dynamics of international capital flows, and the fast spread of technology, gives multiple values of foreign trade leading to growth of economic interlinks across the world countries. Through the foreign trade activity is carried out exchange of goods and s...

  6. The Existing Problems and Countermeasures m the Teaching of Higher Vocational Technology Trade Curriculum%高职国际技术贸易课程教学存在的问题与对策

    Institute of Scientific and Technical Information of China (English)

    徐元

    2012-01-01

    国际技术贸易课程在高职国际经济与贸易专业的相关课程中具有特殊性,在教学实践中面临着学生的学习积极性不高,教师知识结构不合理,缺乏优秀的教材,教学方法传统守旧等问题。为此提出了要提高学生学习积极性,加强师资培训,编写出优秀的教材,改进教学方法和教学手段等措施。%The curriculum of international technology trade plays a particular role in the related courses in the major of international economics and trade of higher vocational colleges. It faces some problems in the teaching practice, such as students' low study enthusiasm, the irrationality of teachers' knowledge structure, the lack of excellent teaching materials, and the lag of teaching methodsl Therefore, it puts forward some measures on increasing students' study enthusiasm, strengthening the training of teaching staff, compiling excellent teaching materials, and improving teaching methods and teaching means.

  7. 121 | Page WORLD TRADE ORGANISATION (WTO): TRADE ...

    African Journals Online (AJOL)

    Fr. Ikenga

    inequalities that existed between the rich and the poor countries, which impacted ..... dealt with the issue of whether Europe violated the requirement of non ..... International Trade Regime (2005), 20 Berkeley J, Gender L & Just.75, p.126.

  8. The Designation Method of Bend Forming Dies for Aluminum Tube of PE-Al-PE Composite Pipe

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The PE-Al-PE composite pipe is a multiplayer pipe t hat is composed of PE (polyethylene) and Aluminum. Al is inlayed the inner PE la yer and the outer PE layer. In the producing technological process of this kind of pipe the bend forming of Al belt to tube is very important. It is the bend fo rming dies that are used in the process of producing PE-Al-PE pipe that is stu died in this article. To make a elaborate division, these dies can be classified as bending dies and forming dies here. In this paper, t...

  9. A Pilot Study for Retrospective Evaluation of Cured-in-Place Pipe (CIPP) Rehabilitation of Municipal Gravity Sewers

    Science.gov (United States)

    Pipe rehabilitation and trenchless pipe replacement technologies have seen a steadily increasing use over the past 30 to 40 years. Despite the massive public investment in the rehabilitation of the US water and wastewater infrastructure, there has been little formal and quantita...

  10. IPIRG-2 task 1 - pipe system experiments with circumferential cracks in straight-pipe locations. Final report, September 1991--November 1995

    Energy Technology Data Exchange (ETDEWEB)

    Scott, P.; Olson, R.; Marschall, C.; Rudland, D. [and others

    1997-02-01

    This report presents the results from Task 1 of the Second International Piping Integrity Research Group (IPIRG-2) program. The IPIRG-2 program is an international group program managed by the US Nuclear Regulatory Commission (US NRC) and funded by a consortium of organizations from 15 nations including: Bulgaria, Canada, Czech Republic, France, Hungary, Italy, Japan, Republic of Korea, Lithuania, Republic of China, Slovak Republic, Sweden, Switzerland, the United Kingdom, and the United States. The objective of the program was to build on the results of the IPIRG-1 and other related programs by extending the state-of-the-art in pipe fracture technology through the development of data needed to verify engineering methods for assessing the integrity of nuclear power plant piping systems that contain defects. The IPIRG-2 program included five main tasks: Task 1 - Pipe System Experiments with Flaws in Straight Pipe and Welds Task 2 - Fracture of Flawed Fittings Task 3 - Cyclic and Dynamic Load Effects on Fracture Toughness Task 4 - Resolution of Issues From IPIRG-1 and Related Programs Task 5 - Information Exchange Seminars and Workshops, and Program Management. The scope of this report is to present the results from the experiments and analyses associated with Task 1 (Pipe System Experiments with Flaws in Straight Pipe and Welds). The rationale and objectives of this task are discussed after a brief review of experimental data which existed after the IPIRG-1 program.

  11. Flat heat pipe design, construction, and analysis

    Energy Technology Data Exchange (ETDEWEB)

    Voegler, G.; Boughey, B.; Cerza, M.; Lindler, K.W.

    1999-08-02

    This paper details the design, construction and partial analysis of a low temperature flat heat pipe in order to determine the feasibility of implementing flat heat pipes into thermophotovoltaic (TPV) energy conversion systems.

  12. Development of heat pipe cooling technology in high heat flux electronic components%高热流密度电子元件中热管散热技术的进展

    Institute of Scientific and Technical Information of China (English)

    郝俊娇; 潘日; 周刚; 张亚军; 庄俭

    2015-01-01

    Cooling performance of tradiator is an important factor affecting service life of electronic component and security. Heat pipe is widely used in high heat flux electronic components because of its small size,high cooling capacity and no consumption of power. The overall structure innovations of heat pipe radiator,particularly different arrangements and combinations of heat pipe are summarized,and thermal performance enhancements of heat pipe,including improvement of internal wick structure,complex internal wick structure manufacture are studied. The introduction of nano-fluid for heat transfer improvement is analyzed,and the relevant methods of heat sink thermal performance analysis and parameter optimization are introduced. The development trends and prospects of new structural design concept of heat pipe radiator,nano-fluid model and manufacture of compound liquid-absorbing core are proposed according to analyzing and summarizing research achievements.%散热器的散热性能是影响电子元件使用寿命与安全性的重要因素,热管以其空间尺寸小、冷却能力高、无需消耗动力等优点在高热流密度元件的散热技术领域得到广泛应用。文中总结了热管散热器整体结构设计的创新尤其是热管的不同排布和组合,研究了热管元件性能的提高包括热管内部吸液芯的改进、复杂结构吸液芯的制造,分析了纳米流体工质的引入对换热效果的强化,介绍了散热器热性能分析和参数优化的相关方法。通过分析总结国内外研究成果,提出了新概念热管散热器的结构设计、纳米流体理论模型及复合吸液芯的加工制造等方面的发展趋势与展望。

  13. 46 CFR 61.15-5 - Steam piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Steam piping. 61.15-5 Section 61.15-5 Shipping COAST... Periodic Tests of Piping Systems § 61.15-5 Steam piping. (a) Main steam piping shall be subjected to a.... If the covering of the piping is not removed, the test pressure shall be maintained on the piping...

  14. 49 CFR Appendix B to Part 192 - Qualification of Pipe

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Qualification of Pipe B Appendix B to Part 192... Pipe I. Listed Pipe Specifications API 5L—Steel pipe, “API Specification for Line Pipe” (incorporated by reference, see § 192.7). ASTM A53/A53M—Steel pipe, “Standard Specification for Pipe, Steel Black...

  15. GENETICALLY MODIFIED CROPS: INTERNATIONAL TRADE AND TRADE POLICY EFFECTS

    Directory of Open Access Journals (Sweden)

    George Frisvold

    2015-04-01

    Full Text Available Where approved, producers have adopted genetically modified (GM crops extensively. Yet, areas not adopting GM crops account for large shares of production and consumption. GM crops differ from previous agricultural innovations because consumers may perceive them as fundamentally different from (and potentially inferior to conventionally grown crops. Many countries maintain restrictions on production and importation of GM crops. GM crop adoption affects producers and consumers, not only through technological change, but also through trade policy responses. This article reviews open economy analyses of impacts of GM crops. To varying degrees, commodities are segmented into GM, conventionally grown, and organic product markets. Recent advances in trade modeling consider the consequences of market segmentation, along with consequences of GM crop import restrictions, product segregation requirements, and coexistence policies.

  16. Power source for wireless sensors in pipes

    Science.gov (United States)

    Keddis, Sherif; Schwesinger, Norbert

    2016-04-01

    In this paper, we present investigations on wireless sensors for fluid control inside a pipe. Autarkic sensors are in the technical trend. They are typically connected with a transceiver unit for data transmission. Sensors usually need a lower amount of energy than data transceivers. Therefore, they are commonly supplied via wires or batteries with electricity. With common technologies, this request leads to high requirements on tightness in liquids since poor sealing could easily lead to failures. Replacement of batteries inside pipes is complicated and almost accompanied by a flow interruption. The application of energy harvesters as power supply is therefore a good alternative. In our studies we used flexible piezoelectric energy harvesters of PVDF (Poly-Vinylidene-Di-Fluoride). All harvesting units consist of piezoelectric PVDF-foils as active layers and Aluminum-foils as electrodes. The layers were stacked alternating on each other and wound to a spool. A LDPE-film wraps the spool and prevents the inflow of liquids. The device has following parameters: No. of windings: 4 in air, 4, 5, 7 in water Dimensions: 15 mm Ø 22mm Materials: PDVF: 25μm Aluminimum: 6μm, LDPE: 25μm A ring shaped bluff body was placed inside the pipe to induce turbulence in the fluid stream. As the harvesters have been arranged downstream of the bluff body, they were forced to oscillate independent of the media. In each case, deformation of the active layers led to a polarization and a separation of electrical charges. Experiments were carried out in a wind channel as well as in a water pipe. In air, the spool oscillates with a frequency of about 30Hz, at a wind speed of about 7m/s. A -Voltage of about 4V (peak-peak) was measured. This delivers in case of power adjustment, power values of about 0.54μW. In water, the velocity of the fluid was limited to nearly one tenth. Oscillation starts only at a water speed above 0.6m/s. The average oscillation frequency is about 18Hz. At a velocity

  17. Introduction to Loop Heat Pipes

    Science.gov (United States)

    Ku, Jentung

    2015-01-01

    This is the presentation file for the short course Introduction to Loop Heat Pipes, to be conducted at the 2015 Thermal Fluids and Analysis Workshop, August 3-7, 2015, Silver Spring, Maryland. This course will discuss operating principles and performance characteristics of a loop heat pipe. Topics include: 1) pressure profiles in the loop; 2) loop operating temperature; 3) operating temperature control; 4) loop startup; 4) loop shutdown; 5) loop transient behaviors; 6) sizing of loop components and determination of fluid inventory; 7) analytical modeling; 8) examples of flight applications; and 9) recent LHP developments.

  18. 46 CFR 169.652 - Bilge piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Bilge piping. 169.652 Section 169.652 Shipping COAST... Electrical Bilge Systems § 169.652 Bilge piping. (a) All vessels of 26 feet in length and over must be... than 120 feet in length the bilge pipe must be not less than one and one-half inches. Piping on...

  19. China Steel Pipes Demand Rising Steadily

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    @@ Steel pipes industry is an industry to play a decisive role in the national economic development. During the Tenth Five-Year Plan period, the steel pipes output has been increased distinctly. Based on experts forecast,the steel pipes demand in China will still be in tendency of increase during the Eleventh FiveYear Plan period, which will doubtlessly bring new opportunity and challenge to the steel pipes enterprises in China.

  20. 46 CFR 76.15-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Piping. 76.15-15 Section 76.15-15 Shipping COAST GUARD... Extinguishing Systems, Details § 76.15-15 Piping. (a) The piping, valves, and fittings shall have a bursting pressure of not less than 6,000 p.s.i. (b) All piping, in nominal sizes not over 3/4 inch, shall be...

  1. Assessment of the integrity of welded pipes

    OpenAIRE

    Šarkoćević, Živče; Arsić, Miodrag; Sedmak, Aleksandar; MEĐO, Bojan; Mišić, Milan; id_orcid 0000-0003-0550-1851

    2014-01-01

    The subject of the paper is analysis of the integrity of welded pipes made of API J55 steel by high frequency contact welding (HF). Experimental research on the mechanical properties of the base material was conducted on pipes withdrawn from exploatation after 70 000 hours at service. Defect influence of the surface crack on the integrity of pipes was tested using hydrostatic pressure of pipes with axial surface crack in the base material. Fracture behaviour was tested using modified compact ...

  2. BIMORPH PIEZOELECTRIC ACTUATOR FOR SMALL PIPE ROBOT

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    An experimental bimorph piezoelectric element (PZT) actuator for small pipe robot is developed. The robotcan move in φ 20 mm pipe, and can carry a CCD camera for detecting cracks or fine holes on inner surface of pipe. Thevelocity of the robot can reach 17~22 mm/s for vertical pipe up/down, respectively. Moving principle and its perfor-mance characteristics are presented.

  3. Analysis of Municipal Pipe Network Franchise Institution

    Science.gov (United States)

    Yong, Sun; Haichuan, Tian; Feng, Xu; Huixia, Zhou

    Franchise institution of municipal pipe network has some particularity due to the characteristic of itself. According to the exposition of Chinese municipal pipe network industry franchise institution, the article investigates the necessity of implementing municipal pipe network franchise institution in China, the role of government in the process and so on. And this offers support for the successful implementation of municipal pipe network franchise institution in China.

  4. 77 FR 18266 - Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines; Revised...

    Science.gov (United States)

    2012-03-27

    ... the conduct of the expedited subject five- year reviews (77 FR 10773, February 23, 2012). The... From the Federal Register Online via the Government Publishing Office INTERNATIONAL TRADE COMMISSION Stainless Steel Butt-Weld Pipe Fittings From Italy, Malaysia, and the Philippines;...

  5. 75 FR 16071 - Circular Welded Carbon Quality Steel Line Pipe from the People's Republic of China: Notice of...

    Science.gov (United States)

    2010-03-31

    ....) invoice price on all shipments of subject merchandise from the Huludao Companies entered or withdrawn from... 36.53 percent of the f.o.b. invoice price on all shipments of subject merchandise from companies... International Trade Administration Circular Welded Carbon Quality Steel Line Pipe from the People's Republic...

  6. 75 FR 60814 - Carbon Steel Butt-Weld Pipe Fittings From Brazil, China, Japan, Taiwan, and Thailand

    Science.gov (United States)

    2010-10-01

    ..., Deputy Agency Ethics Official, at 202-205-3088. Limited disclosure of business proprietary information... including antidumping duties). If you are a trade/business association, provide the information, on an... antidumping duty orders on carbon steel butt-weld pipe fittings from Brazil, China, Japan, Taiwan, and...

  7. 78 FR 3916 - Certain Welded Large Diameter Line Pipe From Japan; Notice of Commission Determination To Conduct...

    Science.gov (United States)

    2013-01-17

    ... From the Federal Register Online via the Government Publishing Office INTERNATIONAL TRADE COMMISSION Certain Welded Large Diameter Line Pipe From Japan; Notice of Commission Determination To Conduct... will be established and announced at a later date. For further information concerning the conduct of...

  8. 75 FR 69050 - Certain Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe From the People's...

    Science.gov (United States)

    2010-11-10

    ...-thickness, manufacturing process (e.g., hot-finished or cold- drawn), end finish (e.g., plain end, beveled... profiles'' suitable for cold finishing operations, such as cold drawing, to meet the American Society for... International Trade Administration Certain Seamless Carbon and Alloy Steel Standard, Line, and Pressure Pipe...

  9. Heat pipe central solar receiver. Volume I. Final technical report

    Energy Technology Data Exchange (ETDEWEB)

    Bienert, W. B.; Wolf, D. A.

    1979-04-01

    The objective of this project was the conceptual design of a Central Solar Receiver Gas Turbine Plant which utilizes a high temperature heat pipe receiver. Technical and economic feasibility of such a plant was to be determined and preliminary overall cost estimates obtained. The second objective was the development of the necessary heat pipe technology to meet the requirements of this receiver. A heat pipe receiver is ideally suited for heating gases to high temperatures. The heat pipes are essentially loss free thermal diffusers which accept a high solar flux and transform it to a lower flux which is compatible with heat transferred to gases. The high flux capability reduces receiver heating surface, thereby reducing receiver heat losses. An open recuperative air cycle with a turbine inlet temperature of 816/sup 0/C (1500/sup 0/F) was chosen as the baseline design. This results in peak metal temperatures of about 870/sup 0/C (1600/sup 0/F). The receiver consists of nine modular panels which form the semicircular backwall of a cavity. Gas enters the panels at the bottom and exits from the top. Each panel carries 637 liquid metal heat pipes which are mounted at right angle to the gas flow. The evaporators of the heat pipes protrude from the flux absorbing front surface of the panels, and the finned condensors traverse the gas stream. Capital cost estimates were made for a 10 MW(e) pilot plant. The total projected costs, in mid-1978 dollars, range from $1,947 to $2,002 per electrical kilowatt. On the same basis, the cost of a water/steam solar plant is approximately 50% higher.

  10. Research on the Self-balancing Sinking Pipe Technology by Temporary Buoyancy Plug%加临时浮力塞自平衡浮力法下管技术研究

    Institute of Scientific and Technical Information of China (English)

    余大有; 陈月化; 唐志宏

    2014-01-01

    Single-plug-buoyancy-method-was-used-to-sink-gas-pipe,-but-space-under-the-plug-was-small.-With-creasing-depth-of-the-gas-hole,-air-under-the-plug-had-been-compressed,-then-the-buoyancy-provided-by-air-decreased-too-much-to-meet-demand-of-sinking-pipe.-To-increase-the-length-of-air-column,-temporary-buoyancy-plug-was-been-made.-This-plug-has-been-placed-same-depth-of-the-single-plug-self-balancing-method-to-sink-pipe.-A-sealing-plate-was-welded-as-temporary-buoyancy-plug,-and-this-method-also-used-upon-empty-pipe-section-to-pro-duce-buoyancy.-When-the-upon-empty-pipe`s-length-reached-de-signed-length,-concrete-buoyancy-plug-was-going-to-be-installed.-And-air-will-be-aerated-into-the-empty-pipe-under-the-concrete-plug,-with-the-pressure-increasing,-the-steel-ball-which-was-placed-in-the-temporary-buoyancy-plug,-exfoliated-into-mud.-Air-was-aerated-into-space-under-the-temporary-buoyancy-plug.-Compared-to-single-plug-self-balancing-buoyancy-method,-tem-porary-buoyancy-plug-has-increased-length-of-air-column,-then-the-buoyancy-produced-by-air-was-also-increased.-Implementa-tion-is-that-all-steel-pipe-can-be-sinked-only-with-one-time-aera-tion.%现有单塞自平衡浮力法下管,塞下充气量较小,并且随着下管深度的增加,塞下空气进一步压缩,提供的浮力逐渐减小,无法满足下管要求。为增加管内储气段长度,设置临时浮力塞。所加临时浮力塞与单塞自平衡下管时的浮力塞处于同一深度,在此处焊接带加强筋的封板作为临时浮力塞,利用常规空管提供浮力。当临时浮力塞上部空管高度达到设计值时,加设混凝土材质浮力塞并充气,随着充气压力的增大,设置在临时浮力塞下部的钢球脱落,空气进入临时浮力塞下部空间。与单塞自平衡浮力法相比,增加了临时浮力塞下这段充气量,因此提供的浮力也增大,从而实现一次性充气下完全布钢管。

  11. Can bilateral trade agreements help induce free trade?

    OpenAIRE

    Riezman, Raymond Glenn

    1999-01-01

    There has been growing debate about whether bilateral trade agreements are damaging multilateral efforts to eliminate barriers to international trade. This paper develops a model in which trading blocks always charge optimal tariffs and make trade agreements based on strategic considerations. We ask a very simple question. Does the fact that trading blocks can form bilateral trade agreements make Free trade less likely to occur? The answer is that it depends on the size distribution of the tr...

  12. Smoking water pipe is injurious to lungs

    DEFF Research Database (Denmark)

    Sivapalan, Pradeesh; Ringbæk, Thomas; Lange, Peter

    2014-01-01

    This review describes the pulmonary consequences of water pipe smoking. Smoking water pipe affects the lung function negatively, is significantly associated with chronic obstructive pulmonary disease and increases the risk of lung infections. Case reports suggest that regular smokers of water pipe...

  13. 46 CFR 108.449 - Piping tests.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Piping tests. 108.449 Section 108.449 Shipping COAST... Fire Extinguishing Systems Fixed Carbon Dioxide Fire Extinguishing Systems § 108.449 Piping tests. (a... piping installation. (b) When tested with CO2 or other inert gas under a pressure of 70 kilograms...

  14. 14 CFR 29.1123 - Exhaust piping.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Exhaust piping. 29.1123 Section 29.1123... STANDARDS: TRANSPORT CATEGORY ROTORCRAFT Powerplant Exhaust System § 29.1123 Exhaust piping. (a) Exhaust piping must be heat and corrosion resistant, and must have provisions to prevent failure due to...

  15. 46 CFR 76.10-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 3 2010-10-01 2010-10-01 false Piping. 76.10-15 Section 76.10-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Fire Main System, Details § 76.10-15 Piping. (a) All piping, valves, and fittings shall meet the applicable requirements...

  16. 49 CFR 195.128 - Station piping.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Station piping. 195.128 Section 195.128 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY... PIPELINE Design Requirements § 195.128 Station piping. Any pipe to be installed in a station that...

  17. 46 CFR 193.10-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false Piping. 193.10-15 Section 193.10-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) OCEANOGRAPHIC RESEARCH VESSELS FIRE PROTECTION EQUIPMENT Fire Main System, Details § 193.10-15 Piping. (a) All piping, valves, and fittings, shall meet...

  18. 46 CFR 95.10-15 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Piping. 95.10-15 Section 95.10-15 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CARGO AND MISCELLANEOUS VESSELS FIRE PROTECTION EQUIPMENT Fire Main System, Details § 95.10-15 Piping. (a) All piping, valves, and fittings shall meet the...

  19. 14 CFR 25.1123 - Exhaust piping.

    Science.gov (United States)

    2010-01-01

    ... 14 Aeronautics and Space 1 2010-01-01 2010-01-01 false Exhaust piping. 25.1123 Section 25.1123... STANDARDS: TRANSPORT CATEGORY AIRPLANES Powerplant Exhaust System § 25.1123 Exhaust piping. For powerplant and auxiliary power unit installations, the following apply: (a) Exhaust piping must be heat...

  20. 46 CFR 132.110 - Piping.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 4 2010-10-01 2010-10-01 false Piping. 132.110 Section 132.110 Shipping COAST GUARD....110 Piping. (a) Except as provided for liftboats by § 134.180 of this subchapter, each fitting, flange, valve, and run of piping must meet the applicable requirements of part 128 of this subchapter....

  1. Thermodynamic aspects of heat pipe operation

    Science.gov (United States)

    Richter, Robert; Gottschlich, Joseph

    1990-01-01

    An expanded heat pipe operating model is described which includes thermodynamic and heat transfer considerations to reconcile disparities between actual and theoretical heat pipe performances. The analysis shows that thermodynamic considerations can explain the observed heat pipe performance limitations. A full understanding of thermodynamic processes could lead to advanced concepts for thermal transport devices.

  2. 46 CFR 154.660 - Pipe welding.

    Science.gov (United States)

    2010-10-01

    ... 46 Shipping 5 2010-10-01 2010-10-01 false Pipe welding. 154.660 Section 154.660 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR... § 154.660 Pipe welding. (a) Pipe welding must meet Part 57 of this chapter. (b) Longitudinal butt...

  3. 49 CFR 192.59 - Plastic pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 3 2010-10-01 2010-10-01 false Plastic pipe. 192.59 Section 192.59 Transportation... BY PIPELINE: MINIMUM FEDERAL SAFETY STANDARDS Materials § 192.59 Plastic pipe. (a) New plastic pipe... specification; and (2) It is resistant to chemicals with which contact may be anticipated. (b) Used plastic...

  4. 49 CFR 236.712 - Brake pipe.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Brake pipe. 236.712 Section 236.712 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF... OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES Definitions § 236.712 Brake pipe. A pipe...

  5. 46 CFR 76.25-30 - Piping.

    Science.gov (United States)

    2010-10-01

    ..., DEPARTMENT OF HOMELAND SECURITY (CONTINUED) PASSENGER VESSELS FIRE PROTECTION EQUIPMENT Automatic Sprinkling System, Details § 76.25-30 Piping. (a) All piping, valves, and fittings of ferrous materials shall be... piping, valves, fittings, and sprinkler heads shall be securely supported, and, where...

  6. 33 CFR 127.1101 - Piping systems.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Piping systems. 127.1101 Section... Waterfront Facilities Handling Liquefied Hazardous Gas Design and Construction § 127.1101 Piping systems. Each piping system within the marine transfer area for LHG used for the transfer of LHG must meet the...

  7. 46 CFR 56.10-5 - Pipe.

    Science.gov (United States)

    2010-10-01

    ...) Ferrous pipe. ASTM Specification A 53 (incorporated by reference, see § 56.01-2) furnace welded pipe shall... found from Table 56.60-1(a). (3) Copper-nickel alloys may be used for water and steam service within the... specifically permitted by this part. (6) Aluminum-alloy pipe or tube along with similar junction equipment may...

  8. 77 FR 8222 - Notice Requesting Nominations for the Subcommittee on Automated and High Frequency Trading

    Science.gov (United States)

    2012-02-14

    ... COMMISSION Notice Requesting Nominations for the Subcommittee on Automated and High Frequency Trading AGENCY... Automated and High Frequency Trading within the Technology Advisory Committee. SUMMARY: The Commodity... Automated and High Frequency Trading (Subcommittee) under the auspices of the Technology Advisory Committee...

  9. 客运专线铁路预埋套管式高速道岔板预制工艺特殊技术研究%Special Technology Research on Prefabrication Process of High-Speed Turnout Slab with Embedded Pipe Sleeves on Passenger-dedicated Line

    Institute of Scientific and Technical Information of China (English)

    付国才; 黄杰

    2012-01-01

    This paper, in combination with the research on the prefabrication process of the high speed turnout slab with embedded pipe sleeves, sums up its special technology of prefabrication process, including the mould installation, steel skeleton processing, pipe sleeve embedding and the turnout slab demoulding, turn-over, transferring, storage, etc. Based on the successful application of these research results, this paper concludes that the prefabrication quality indicators of the high speed turnout slab with embedded pipe sleeves can meet the requirements specified in relevant manufacture and acceptance conditions ( trial implementation) of passenger-dedicated line and can be used as reference for similar project.%结合预埋套管式高速道岔板的预制工艺研究,总结出包括预埋套管式高速道岔板的模具安装、钢筋骨架加工、预埋套管安装、道岔板脱模、翻面、运输及存放等方面的预制工艺特殊技术.这些研究成果的成功运用确保了预埋套管式高速道岔板预制件的质量指标满足客运专线铁路预埋套管式混凝土道岔板制造及验收技术条件(试行)规定,可供类似工程借鉴.

  10. Research on coupling between thermoacoustic resonance pipe and piezoelectric acoustic source

    Institute of Scientific and Technical Information of China (English)

    FAN Li; ZHANG Shuyi; WANG Benren

    2007-01-01

    Piezoelectric loudspeakers have been used in thermoacoustic refrigerators for operating at the high frequency to miniaturize the system. Then the coupling between the piezoelectric loudspeaker and resonance pipe becomes an important factor for improving the performances of the system. By the equivalent circuit model, the expressions of the acoustic output power and electroacoustic transfer efficiency at a low operating frequency are obtained, and then the structures of the piezoelectric loudspeaker and resonance pipe, as well as the operating frequency, are optimized to achieve a high electroacoustic transfer efficiency and a large acoustic output power. It is also shown that when the total reactance of the system equals zero, the resonance frequency of the resonance pipe is the optimized operating frequency and a high acoustic output power can be achieved. However, the highest transfer efficiency and largest acoustic power cannot be obtained simultaneously, therefore a trade-off condition must be adopted.

  11. The Ningxia Trade Link

    Institute of Scientific and Technical Information of China (English)

    LI YUZHU; LIU YUNYUN

    2010-01-01

    @@ Trade deals were plentiful at the first China-Arab States Economic and Trade Forum last month,with over190 deals on investment cooperation totaling 203.56 billion yuan($30.52 billion)signed between China and Arab states and Muslim regions.The forum,held from September 26 to 30 in Yinchuan,capital of Ningxia Hui Autonomous Region,aimed to enhance investment and trade ties between China and Arab states.

  12. Trade Promotion from Neighborhood

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ "If you are considering to trade with companies in Japan or expanding your business to Japan,we are ready to help from the very beginning."You will find this greeting at the first sight on the Chinese website of Japan External Trade Organization(JETRO).JETRO has committed itself in delivering highly efficient and quality services to meet the demand of internal and external customs including Japanese companies,hence winning a good reputation in the international trade arena.

  13. China's Foreign Trade Strategy

    Institute of Scientific and Technical Information of China (English)

    Li Zuoyan

    2008-01-01

    @@ Profile of route map In 1949,right after the establishment of the People's Republic of China (PRC),overall economic blockage and embargo imposed by other countries,except the Soviet Union and eastern European countries,separated China from the global economic and trade community.In such a context,China Council for the Promotion of International Trade (CCPIT) was born in May 1952 to facilitate non-governmental trade with other countries,Japan in particular.

  14. This is not a Pipe

    DEFF Research Database (Denmark)

    Just, Sine Nørholm

    2016-01-01

    or unwilling to listen to, let alone engage with, emotionally guided bottom-up participation. Using an illustrative case of a Danish public debate over an alleged ban on liquorice pipes, this article argues that the disconnect between invitation and participation may be explained by the fact...

  15. Investigation of sand in piping

    Directory of Open Access Journals (Sweden)

    Nađ Laslo

    2012-01-01

    Full Text Available For the investigation of the grain size distribution of the material washed out from the piping, we used 20 samples originating from different places on the Danube and the Tisza rivers. The grading characteristics of these samples were investigated based on selected grain sizes and the uniformity of gradients. Based on the investigations it has become possible to identify which grain size fractions are likely to be washed out, and how to characterize those fractions. Based on the grain size distribution curves it has been made possible to define the boundaries of the zone susceptible to piping. The zone limits of granular soils liquefied by earthquakes and the zone limits of the soil out washed from piping are very similar. This apparent correspondence already formerly raised the hypothetic question of whether piping occurring during high flood can be simulated by shape to similar surface liquefaction phenomena experienced during earthquakes, as in both cases a volcanic cone is formed through the crater of which water is constantly issuing, dragging away solid particles.

  16. Localized turbulence in pipe flow

    NARCIS (Netherlands)

    Kuik, D.J.

    2011-01-01

    In this thesis the transition to turbulence in pipe flow is investigated. At low Reynolds numbers, the flow returns to the laminar state spontaneously. At high Reynolds number a small perturbation causes the flow to suddenly become turbulent. In the intermediate regime localized turbulence is observ

  17. Methods for Analyzing Pipe Networks

    DEFF Research Database (Denmark)

    Nielsen, Hans Bruun

    1989-01-01

    to formulate the flow equations in terms of pipe discharges than in terms of energy heads. The behavior of some iterative methods is compared in the initial phase with large errors. It is explained why the linear theory method oscillates when the iteration gets close to the solution, and it is further...

  18. Spinning pipe gas lens revisited

    CSIR Research Space (South Africa)

    Mafusire, C

    2008-01-01

    Full Text Available The graded index (GRIN-like) medium generated by gas inside a heated steel pipe when rotated about its longitudinal axis has the ability to focus a laser beam. While the effective focal length of such a system has previously been studied...

  19. Effect Of Perception Use Of Information Technology Safety And Perception Of Interest Trust Online Trading System Using Internet Banking Study Empris In Bri Bank Branch Office Tangerang 2014

    Directory of Open Access Journals (Sweden)

    Endraria

    2015-06-01

    Full Text Available Abstract The purpose of this study was to examine and analyze the influence of the perception of the use of information technology to transact online interests perceptions of comfort against the interest of transacting online trust in transacting online interest the perception of the use of information technology the perception of comfort and confidence simultaneously affect the interest of transacting online using internet system banking Empris Studies at Bank BRI Branch Office Tangerang 2014. With usability Theoretical where research results can be used to enrich the study of accounting keprilakuan in particular and science in general accounting uses for which the Bank can enrich the concept or theory in its contribution to the development of science so useful as a reference for those who need both from within Bank and outside the institution itself and able to provide input to what extent the perception of the use of information technology the perception of comfort and confidence can give a positive contribution to the interests transact online using internet banking system Study Empris at Bank BRI Branch Office Tangerang 2014 and usability for the Government where the results of this study are expected to be used as a correction and input the extent to which the perception of the use of information technology the perception of comfort and confidence can give a positive contribution to the interests transact online using internet banking system Study Empris at Bank BRI Branch Office Tangerang 2014 especially in the City Tangerang. The hypothesis proposed in this study in which there is significant influence use of information technology to transact interest perceptions of comfort on the interest on the interest of trust online transacting online transactions simultaneous perception of the use of information technology the perception of comfort and confidence in the interests transact online using Internet Banking System Study Empris Bank BRI

  20. MATHEMATICAL MODEL OF POWER CONSUMPTION FOR SOME OIL PIPE-LINE SECTIONS WITH POOR OPERATIONAL STABILITY

    Directory of Open Access Journals (Sweden)

    J. N. Kolesnik

    2005-01-01

    Full Text Available Mathematical model of power consumption for technologically completed and non-completed oil pipe-line sections with poor operational stability has been developed on the basis of daily indices concerning oil transportation regimes. The model permits to take into account tendencies in power consumption under various time prediction cycles and ranges of oil freight turnover, changes in the bulk and characteristics of the transported oil, configuration and design parameters of oil pipe-line.

  1. Trade in health services.

    Science.gov (United States)

    Chanda, Rupa

    2002-01-01

    In light of the increasing globalization of the health sector, this article examines ways in which health services can be traded, using the mode-wise characterization of trade defined in the General Agreement on Trade in Services. The trade modes include cross- border delivery of health services via physical and electronic means, and cross-border movement of consumers, professionals, and capital. An examination of the positive and negative implications of trade in health services for equity, efficiency, quality, and access to health care indicates that health services trade has brought mixed benefits and that there is a clear role for policy measures to mitigate the adverse consequences and facilitate the gains. Some policy measures and priority areas for action are outlined, including steps to address the "brain drain"; increasing investment in the health sector and prioritizing this investment better; and promoting linkages between private and public health care services to ensure equity. Data collection, measures, and studies on health services trade all need to be improved, to assess better the magnitude and potential implications of this trade. In this context, the potential costs and benefits of trade in health services are shaped by the underlying structural conditions and existing regulatory, policy, and infrastructure in the health sector. Thus, appropriate policies and safeguard measures are required to take advantage of globalization in health services.

  2. International emissions trading

    DEFF Research Database (Denmark)

    Boom, Jan Tjeerd

    This thesis discusses the design and political acceptability of international emissions trading. It is shown that there are several designs options for emissions trading at the national level that have a different impact on output and thereby related factors such as employment and consumer prices....... The differences in impact of the design make that governments may prefer different designs of emissions trading in different situations. The thesis furthermore establishes that international emissions trading may lead to higher overall emissions, which may make it a less attractive instrument....

  3. Preliminary Design of IHTS Piping Support for PGSFR

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Nak-Hyun; Koo, Gyeong-Hoi [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)

    2014-10-15

    A pipe support is a designed element that transfer the load from pipe to the supporting structures. Providing sufficient pipe wall thickness and installing proper supports are most important elements for structural integrity of the piping system. Piping supports are generally referred to as device used in supporting the weight of the piping. The weight includes that of the pipe proper, the content the pipe carries, and the pipe converting, such as insulation. A FE analysis was performed to select variable spring hanger of IHTS hot-leg piping for PGSFR. The calculated values will be used to design variable spring hanger.

  4. Kovar Micro Heat Pipe Substrates for Microelectronic Cooling

    Energy Technology Data Exchange (ETDEWEB)

    Benson, David A.; Burchett, Steven N.; Kravitz, Stanley H.; Robino, Charles V.; Schmidt, Carrie; Tigges, Chris P.

    1999-04-01

    We describe the development of a new technology for cooling microelectronics. This report documents the design, fabrication, and prototype testing of micro scale heat pipes embedded in a flat plate substrate or heat spreader. A thermal model tuned to the test results enables us to describe heat transfer in the prototype, as well as evaluate the use of this technology in other applications. The substrate walls are Kovar alloy, which has a coefficient of thermal expansion close to that of microelectronic die. The prototype designs integrating micro heat pipes with Kovar enhance thermal conductivity by more than a factor of two over that of Kovar alone, thus improving the cooling of micro-electronic die.

  5. Bending of pipes with inconel cladding

    Energy Technology Data Exchange (ETDEWEB)

    Nachpitz, Leonardo; Menezes, Carlos Eduardo B.; Vieira, Carlos R. Tavares [Primus Processamento de Tubos S.A. (PROTUBO), Macae, RJ (Brazil)

    2009-07-01

    The high-frequency induction bending process, using API pipes coated with Inconel 625 reconciled to a mechanical transformation for a higher degree of resistance, was developed through a careful specification and control of the manufacturing parameters and inherent heat treatments. The effects of this technology were investigated by a qualification process consisting of a sequence of tests and acceptance criteria typically required by the offshore industry, and through the obtained results was proved the effectiveness of this entire manufacturing process, without causing interference in the properties and the quality of the inconel cladding, adding a gain of resistance to the base material, guaranteed by the requirements of the API 5L Standard. (author)

  6. INDONESIAN TRADE UNDER CHINA FREE TRADE AREA

    Directory of Open Access Journals (Sweden)

    Tavi Supriana

    2011-09-01

    Full Text Available This paper investigates the implementation of CAFTA (China-Asean Free Trade Area on the international trade flows across Indonesia, China and the rest of ASEAN using a gravitation model. It finds the evidence that the influence of diversion and creation effects on China are significant, while the influence of both effects on Indonesia are not significant. It also finds that the diversion effect, which leads to a decrease in society’s wealth, is greater than that of the creation effect. As a consequence, the gap across countries involved in the trade agreement is wider. Keywords: CAFTA, gravitation model, diversion effect, creation effectJEL classification numbers: F13, F14, F15

  7. Heat pipes et two-phase loops for spacecraft applications. ESA programmes

    Energy Technology Data Exchange (ETDEWEB)

    Supper, W. [European Space Agency / ESTEC. Thermal control and life support division (France)

    1996-12-31

    This document is a series of transparencies presenting the current and future applications of heat pipes in spacecraft and the activities in the field of capillary pumped two-phase loops: thermal tests, high-efficiency low pressure drop condensers, theoretical understanding of evaporator function, optimization of liquid and vapor flows, trade-off between low and high conductivity wicks, development of high capillary capacity wicks etc.. (J.S.)

  8. Underground pipe inspection device and method

    Science.gov (United States)

    Germata, Daniel Thomas [Wadsworth, IL

    2009-02-24

    A method and apparatus for inspecting the walls of an underground pipe from inside the pipe in which an inspection apparatus having a circular planar platform having a plurality of lever arms having one end pivotably attached to one side of the platform, having a pipe inspection device connected to an opposite end, and having a system for pivoting the lever arms is inserted into the underground pipe, with the inspection apparatus oriented with the planar platform disposed perpendicular to the pipe axis. The plurality of lever arms are pivoted toward the inside wall of the pipe, contacting the inside wall with each inspection device as the apparatus is conveyed along a length of the underground pipe.

  9. Condensation pool experiments with steam using DN200 blowdown pipe

    Energy Technology Data Exchange (ETDEWEB)

    Laine, J.; Puustinen, M. [Lappeenranta Univ. of Technology (Finland)

    2005-08-01

    This report summarizes the results of the condensation pool experiments with steam using a DN200 blowdown pipe. Altogether five experiment series, each consisting of several steam blows, were carried out in December 2004 with a scaled-down test facility designed and constructed at Lappeenranta University of Technology. The main purpose of the experiments was to increase the understanding of different phenomena in the condensation pool during steam discharge. (au)

  10. Non-destructive technique to verify clearance of pipes

    Directory of Open Access Journals (Sweden)

    Savidou Anastasia

    2010-01-01

    Full Text Available A semi-empirical, non-destructive technique to evaluate the activity of gamma ray emitters in contaminated pipes is discussed. The technique is based on in-situ measurements by a portable NaI gamma ray spectrometer. The efficiency of the detector for the pipe and detector configuration was evaluated by Monte Carlo calculations performed using the MCNP code. Gamma ray detector full-energy peak efficiency was predicted assuming a homogeneous activity distribution over the internal surface of the pipe for 344 keV, 614 keV, 662 keV, and 1332 keV photons, representing Eu-152, Ag-118m, Cs-137, and Co-60 contamination, respectively. The effect of inhomogeneity on the accuracy of the technique was also examined. The model was validated against experimental measurements performed using a Cs-137 volume calibration source representing a contaminated pipe and good agreement was found between the calculated and experimental results. The technique represents a sensitive and cost-effective technology for calibrating portable gamma ray spectrometry systems and can be applied in a range of radiation protection and waste management applications.

  11. Development of inspection/maintenance robot for underground pipes

    Energy Technology Data Exchange (ETDEWEB)

    Yoon, Ji Sup; Cho, M.W.; Kim, Y.H.; Park, B.S. [Korea Atomic Energy Research Institute, Taejon (Korea)

    1998-11-01

    A sewage inspection/maintenance robot is developed which inspects physical defects of inner walls of sewage pipes as well as effectively repairs these defects. The robot system consists of a cutting robot, a inspection robot, and a packer robot. The cutting robot removes the branch pipes extruded into a main pipe as well as grinds the surface of defected parts. Unlike other sewage cutting robots, the developed cutting robot is equipped with two cutting tools whose position can be easily changed each other by remote operations. The inspection robot is equipped with a rotary type inspection module which utilizes laser sensors and automatically inspects defects. Also, image processing technology is applied to this robot so that the identification of accurate geometry of the defects is made possible by combining the displacement data from laser sensor and a image data from the Ccd camera. The inspection robot can be autonomously navigates by utilizing a gyro compass as a navigation sensor and the velocity difference between left and right wheels. The packer robot fills the cracks or holes of inner wall by expending its rubber tube inside the pipes. 20 refs., 166 figs., 30 tabs. (Author)

  12. Biological trade and markets.

    Science.gov (United States)

    Hammerstein, Peter; Noë, Ronald

    2016-02-01

    Cooperation between organisms can often be understood, like trade between merchants, as a mutually beneficial exchange of services, resources or other 'commodities'. Mutual benefits alone, however, are not sufficient to explain the evolution of trade-based cooperation. First, organisms may reject a particular trade if another partner offers a better deal. Second, while human trade often entails binding contracts, non-human trade requires unwritten 'terms of contract' that 'self-stabilize' trade and prevent cheating even if all traders strive to maximize fitness. Whenever trading partners can be chosen, market-like situations arise in nature that biologists studying cooperation need to account for. The mere possibility of exerting partner choice stabilizes many forms of otherwise cheatable trade, induces competition, facilitates the evolution of specialization and often leads to intricate forms of cooperation. We discuss selected examples to illustrate these general points and review basic conceptual approaches that are important in the theory of biological trade and markets. Comparing these approaches with theory in economics, it turns out that conventional models-often called 'Walrasian' markets-are of limited relevance to biology. In contrast, early approaches to trade and markets, as found in the works of Ricardo and Cournot, contain elements of thought that have inspired useful models in biology. For example, the concept of comparative advantage has biological applications in trade, signalling and ecological competition. We also see convergence between post-Walrasian economics and biological markets. For example, both economists and biologists are studying 'principal-agent' problems with principals offering jobs to agents without being sure that the agents will do a proper job. Finally, we show that mating markets have many peculiarities not shared with conventional economic markets. Ideas from economics are useful for biologists studying cooperation but need

  13. How Fair is Fair Trade?

    NARCIS (Netherlands)

    Vaal, A. de; Maseland, R.K.J.

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed fair . This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost base

  14. How fair is fair trade?

    NARCIS (Netherlands)

    Maseland, Robbert; Vaal, Albert de

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair’. This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost base

  15. How Fair is Fair Trade?

    NARCIS (Netherlands)

    Maseland, R.K.J.; Vaal, A. de

    2002-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair.’ This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost base

  16. How fair is fair trade?

    NARCIS (Netherlands)

    Maseland, Robbert; Vaal, Albert de

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair’. This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost

  17. How Fair is Fair Trade?

    NARCIS (Netherlands)

    Vaal, A. de; Maseland, R.K.J.

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed fair . This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost base

  18. How Fair is Fair Trade?

    NARCIS (Netherlands)

    Maseland, R.K.J.; Vaal, A. de

    2002-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair.’ This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost base

  19. How fair is fair trade?

    NARCIS (Netherlands)

    Maseland, Robbert; Vaal, Albert de

    2001-01-01

    This paper investigates to what extent fair trade programmes, are indeed ‘fair’. This is accomplished by comparing fair trade with free trade and protectionist trade regimes on their compliance of the criteria set by the fair trade movement itself. This comparison is made using comparative cost base

  20. Trading cultural goods in the era of digital piracy

    OpenAIRE

    Stefania Lionetti; Roberto Patuelli

    2009-01-01

    The issue of digital piracy as violation of intellectual property rights is a hot button among many governments around the world. Until now, nor legislation or its enforcement have managed to keep up with the most recent technologies facilitating piracy. Piracy rates may significantly affect both internal demand and international trade of cultural goods. This paper aims to empirically assess the effect of digital piracy on bilateral trade in cultural goods. We focus on trade in music an...