The Experts below are selected from a list of 207 Experts worldwide ranked by ideXlab platform

N. K. Francis - One of the best experts on this subject based on the ideXlab platform.

  • Objective assessment of technique in laparoscopic colorectal surgery: What are the existing tools?
    Techniques in Coloproctology, 2015
    Co-Authors: J. D. Foster, N. K. Francis
    Abstract:

    Assessment can improve the effectiveness of surgical training and enable valid judgments of competence. Laparoscopic colon resection surgery is now taught within surgical residency Programs, and assessment tools are increasingly used to stimulate formative feedback and enhance learning. Formal assessment of technical performance in laparoscopic colon resection has been successfully applied at the specialist level in the English “LAPCO” National Training Program. Objective assessment tools need to be developed for training and assessment in laparoscopic rectal cancer resection surgery. Simulation may have a future role in assessment and accreditation in laparoscopic colorectal surgery; however, existing virtual reality models are not ready to be used for assessment of this advanced surgery.

Christopher A. Simon - One of the best experts on this subject based on the ideXlab platform.

  • Testing for Bias in the Impact of AmeriCorps Service on Volunteer Participants: Evidence of Success in Achieving a Neutrality Program Objective
    Public Administration Review, 2002
    Co-Authors: Christopher A. Simon
    Abstract:

    During its nine years of existence, AmeriCorps has had a tremendous impact on its volunteers and the communities it serves. Despite concerns expressed by the Republican congressional leadership, the Corporation for National and Community Service—the federally funded administrative organization that directs AmeriCorps Programs at the national level—has made clear its intention to operate in a nonpartisan, politically neutral manner. A study of AmeriCorps Programs in four western states finds the corporation is accomplishing its “neutrality” Objective and is rebuilding a sense of civic–mindedness in a manner that lacks gender or racial bias—a critical element in reestablishing a strong choral society—all the while properly respecting diversity.

Norman Hockling Chan - One of the best experts on this subject based on the ideXlab platform.

P. Scott - One of the best experts on this subject based on the ideXlab platform.

  • International Piping Integrity Research Group (IPIRG) Program. Final report
    1997
    Co-Authors: G. Wilkowski, R. Schmidt, P. Scott
    Abstract:

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

  • Fracture evaluations of fusion line cracks in nuclear pipe bimetallic welds
    1995
    Co-Authors: P. Scott, R. Francini, Sharif Rahman, A. Rosenfield, Gery Wilkowski
    Abstract:

    In both BWRs and PWRs there are many locations where carbon steel pipe or components are joined to stainless steel pipe or components with a bimetallic weld. The Objective of the research described in this report was to assess the accuracy of current fracture analyses for the case of a crack along a carbon steel to austenitic weld fusion line. To achieve the Program Objective, material property data and data from a large-diameter pipe fracture experiment were developed to assess current analytical methods. The bimetallic welds evaluated in this Program were bimetallic welds obtained from a cancelled Combustion Engineering plant. The welds joined sections of the carbon steel cold-leg piping system to stainless steel safe ends that were to be welded to stainless steel pump housings. The major conclusion drawn as a result of these efforts was that the fracture behavior of the bimetallic weld evaluated in this Program could be evaluated with reasonable accuracy using the strength and toughness properties of the carbon steel pipe material in conjunction with conventional elastic-plastic fracture mechanics or limit-load analyses. This may not be generally true for all bimetallic welds, as discussed in this report.

  • Short cracks in piping and piping welds. Seventh Program report, March 1993-December 1994. Volume 4, Number 1
    1995
    Co-Authors: Gery Wilkowski, N. Ghadiali, D. Rudland, P. Krishnaswamy, S. Rahman, P. Scott
    Abstract:

    This is the seventh progress report of the U.S. Nuclear Regulatory Commission`s research Program entitled {open_quotes}Short Cracks in Piping and Piping Welds{close_quotes}. The Program Objective is to verify and improve fracture analyses for circumferentially cracked large-diameter nuclear piping with crack sizes typically used in leak-before-break (LBB) analyses and in-service flaw evaluations. All work in the eight technical tasks have been completed. Ten topical reports are scheduled to be published. Progress only during the reporting period, March 1993 - December 1994, not covered in the topical reports is presented in this report. Details about the following efforts are covered in this report: (1) Improvements to the two computer Programs NRCPIPE and NRCPIPES to assess the failure behavior of circumferential through-wall and surface-cracked pipe, respectively; (2) Pipe material property database PIFRAC; (3) Circumferentially cracked pipe database CIRCUMCK.WKI; (4) An assessment of the proposed ASME Section III design stress rule changes on pipe flaw tolerance; and (5) A pipe fracture experiment on a section of pipe removed from service degraded by microbiologically induced corrosion (MIC) which contained a girth weld crack. Progress in the other tasks is not repeated here as it has been covered in great detail in the topical reports

J. D. Foster - One of the best experts on this subject based on the ideXlab platform.

  • Objective assessment of technique in laparoscopic colorectal surgery: What are the existing tools?
    Techniques in Coloproctology, 2015
    Co-Authors: J. D. Foster, N. K. Francis
    Abstract:

    Assessment can improve the effectiveness of surgical training and enable valid judgments of competence. Laparoscopic colon resection surgery is now taught within surgical residency Programs, and assessment tools are increasingly used to stimulate formative feedback and enhance learning. Formal assessment of technical performance in laparoscopic colon resection has been successfully applied at the specialist level in the English “LAPCO” National Training Program. Objective assessment tools need to be developed for training and assessment in laparoscopic rectal cancer resection surgery. Simulation may have a future role in assessment and accreditation in laparoscopic colorectal surgery; however, existing virtual reality models are not ready to be used for assessment of this advanced surgery.