• Title/Summary/Keyword: Qualification Procedure

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Effects of Cutting and Welding on Hardness Values of Duplex and Superduplex Stainless Steel Weldments (절삭과 용접에 의한 Duplex계 스테인레스강 용접부의 경도 영향 평가)

  • 허희영;선혜선;윤동렬;장태원
    • Proceedings of the KWS Conference
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    • 2003.11a
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    • pp.103-105
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    • 2003
  • Currently, duplex and superduplex stainless steels are widely used for piping system in offshore unit because of its excellent combination of strength and corrosion resistance properties. Also, the usage of duplex and superduplex stainless steel is steadily increasing with getting into step with development of offshore industries. In spite of excellent merits in mechanical and chemical properties of base materials, sometimes stringent requirements in welding procedure qualification and fabrication of duplex class material have regulated not only the application of various high-efficiency welding processes but also applicable welding parameters. This study is focused on hardness requirement which is known as one of the most stringent factor in duplex class material welding and this study aims to evaluate the effects of cutting and welding methodology on hardness values of duplex and superduplex stainless steel weldments.

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Evaluation of Endcap Welding Test for a Nuclear Fuel Rod having External and Internal Tube Structure (내외부 이중튜브구조를 갖는 핵연료봉의 봉단마개 용접시험 평가)

  • Kim, Soo-Sung;Kim, Jong-Hun;Kim, Hyung-Kyu
    • Proceedings of the KSME Conference
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    • 2008.11a
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    • pp.1377-1380
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    • 2008
  • An irradiation test of a nuclear fuel rod having external and internal tube structure was planned for a performance. To establish fabrication process satisfying the requirements of irradiation test, micro-TIG welding system for fuel rods was developed, and preliminary welding experiments for optimizing process conditions of fuel rod was performed. Fuel rods with 15.9mm diameter and 0.57mm wall thickness of cladding tubes and end caps have been used and optimum conditions of endcap welding have been selected. In this experiment, the qualification test was performed by tensile tests, helium leak inspections, and metallography examinations to qualify the endcap welding procedure. The soundness of the welds quality of a dual cooled fuel rods has been confirmed by mechanical tests and microstructural examinations.

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Evaluation of Flow Properties of Steel Using Advanced Indentation System (비파괴적 연속압입시험 기법을 응용한 구조용 강의 소성 물성 평가)

  • Jang, J.I.;Son, D.I.;Choi, Y.;Park, S.C.;Kwon, D.I.
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 2002.05a
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    • pp.191-194
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    • 2002
  • The tensile properties of materials can be obtained just in accordance with conventional tensile testing methods which are described in several standards. However, the standard testing methods cannot be applicable due to the destructive testing procedure and specimen size requirement for some cases including on-service facility materials. Therefore, simple, non-destructive and advanced indentation technique was proposed. This test measures indentation load-depth curve during indentation and analyzes the mechanical properties related to deformation and fracture. In this paper, the research trend of non-destructive evaluation of tensile properties using advanced indentation system and its application fields are reviewed and discussed.

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A Study on Program Review Model for Human Factors in Railway Industry (철도산업의 안전업무 종사자 인적요인 관리를 위한 검토모델 연구)

  • Kwak, Sang-Log;Wang, Jong-Bae;Park, Chan-Woo;Choi, Don-Bum
    • Proceedings of the KSR Conference
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    • 2008.11b
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    • pp.2040-2044
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    • 2008
  • Recently, many safety measures are developing for the prevention of human error, which is main factors of railway accident. For the efficient management of human factors, many expertise on design, conditions, safety culture and staffing are required. But current safety management activities on safety critical works are focused on training, due to the limited resource and information. In order to establish railway human factors management, a systematic review model is required. Based on system engineering and nuclear industry model, a program review model is proposed in this study. The model includes operating experience review, task analysis, staffing and qualification, human reliability analysis, huma-system interface design, procedure development, training program, verification and validation, implementation and monitoring. Results can be applied for the review of safety measures relating to human factors.

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Seismic Response Prediction of a Structure Using Experimental Modal Parameters from Impact Tests (충격시험에 의한 실험모드특성을 이용한 구조물의 지진응답 예측)

  • Cho, Sung-Gook;Joe, Yang-Hee;So, Gi-Hwan
    • Journal of the Earthquake Engineering Society of Korea
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    • v.14 no.2
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    • pp.75-84
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    • 2010
  • An in-cabinet response spectrum should be generated to perform the seismic qualification of devices and instruments mounted inside safety-related electrical equipment installed in nuclear power plants. The response spectrum is available by obtaining accurate seismic responses at the device mounting location of the cabinet. The dynamic behavior of most of electrical equipment may not be easily analyzed due to their complex mass and stiffness distributions. Considering these facts, this study proposes a procedure to estimate the seismic responses of a structure by a combination of a test and subsequent analysis. This technique firstly constructs the modal equations of the structure by using the experiment modal parameters obtained from the impact test. Then the seismic responses of the structure may be calculated by a mode superposition method. A simple steel frame structure was fabricated as a specimen for the validation of the proposed method. The seismic responses of the specimen were estimated by using the proposed technique and compared with the measurements obtained from the shaking table tests. The study results show that it is possible to accurately estimate the seismic response of the structure by using the experimental modal parameters obtained from the impact test.

A Review on the Arbitral Proceeding under Rules of Arbitral Procedure of the Indonesia National Board of Arbitration (BANI) (인도네시아 국립중재위원회(BANI) 중재규칙상 중재절차의 구조)

  • Kim, Young-Ju
    • Journal of Arbitration Studies
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    • v.24 no.4
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    • pp.99-125
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    • 2014
  • The purpose of this paper is to introduce the arbitral proceeding system in Indonesia. Arbitration in Indonesia is governed by Law No. 30 of 1999 on Arbitration and Alternative Dispute Resolution (Arbitration Law). Also, the Indonesian National Board of Arbitration (BANI) is the main arbitration body in Indonesia. BANI handles both domestic and international disputes. BANI has published its Rules of Arbitral Procedure (the BANI Rules). Within a period of not longer than 30 days after receiving the petition for arbitration, the respondent must submit its reply. Also, if the respondent wishes to assert against the claimant a counter-claim in connection with the dispute, the respondent may submit such counter-claim together with its statement of defense no later than the first hearing. This paper suggests that the following may be some of the disadvantages to using arbitration under the BANI Rules. The first is that final decision or approval regarding the designation of all arbitrators shall be in the hands of the Chairman of BANI. It is the chief problem facing the international stream of arbitration systems. The second is that arbitrators must have certain minimum qualifications. BANI Rules provide the same requirements for the qualifications of the arbitrators as the Arbitration Law. The third is that the BANI Rules require arbitrators in BANI-administered references to be chosen from BANI's list of arbitrators. BANI can also consider a recognized foreign arbitrator if the foreign arbitrator meets the qualification requirements and is prepared to comply with the BANI Rules. This includes the requirement that the appointing party must bear the travel, accommodation, and other special expenses related to the appointment of the foreign arbitrator.

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A Comparative Study on the Qualifications and Challenge of Arbitrator in Commercial Arbitration (상사중재에서 중재인의 자격 및 기피에 관한 비교연구)

  • Lee, Kang-Bin
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.36
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    • pp.111-140
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    • 2007
  • This paper intends to review the qualifications of arbitrator, the disclosure of disqualifications by arbitrator, the challenge grounds of arbitrator, and the challenge procedure of arbitrator under the arbitration laws and rules. There are no provisions for the qualification of arbitrator in the UNCITRAL Model Law on International Commercial Arbitration. Under the UNCITRAL Model Law on person shall be precluded by reason of his nationality from acting as an arbitrators. Under the UNCITRAL Model Law when a person is approached in connection with his possible appointment as an arbitrator, he shall disclose any circumstances likely to give rise to justifiable doubts as to his impartiality or independence. An arbitrator, from the time of his appointment and throughout the arbitral proceedings, shall without delay disclose any such circumstances to the parties. Under the UNCITRAL Model Law an arbitrator may be challenged only if circumstances exist that give rise to justifiable doubts as to his impartiality or independence, or if he does not possess qualifications agreed to by the parties. Under the UNCITRAL Model Law the parties are free to agree on a procedure for challenge an arbitrator. Failing such agreement, a party who intends to challenge an arbitrator shall send a written statement of the reasons for the challenge to the arbitral tribunal within 15 days after becoming aware of the constitution of the arbitral tribunal or any circumstance that give rise to justifiable doubts as to his impartiality or independence. Unless the challenged arbitrator withdraws from his office or the other party agrees to the challenge, the arbitral tribunal shall decide on the challenge. In conclusion, an arbitrator has a responsibility not only to the parties but also to the process of arbitration, and must observe high standards of conduct so that the integrity and must observe high standards of conduct so that the integrity and fairness of the process will be preserved.

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The Efficient Education Program for the Activation of the ADR System (ADR제도 활성화를 위한 효율적인 교육프로그램에 관한 연구)

  • Lee, Kang-Bin
    • Journal of Arbitration Studies
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    • v.18 no.1
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    • pp.3-30
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    • 2008
  • This paper is to research the current status of ADR in Korea, the qualifications of mediator (or conciliator) and arbitrator, the ADR education program of major foreign arbitration-related institutions and the efficient management device of ADR education program for the activation of the ADR system. In 2007, arbitration applications received at the Korean Commercial Arbitration Board numbered 320 and the amount involved those cases was US$ 216 millions. Mediation applications received at the KCAB numbered 552 and the amount involved those cases US$ 29millions. As of December 2007, the total numbers of arbitrators on the KCAB Panel of Arbitrators was 978. There are no provisions for the qualification of arbitrator in the UNCITRAL Model Law on International Commercial Arbitration and Arbitration Act of Korea. The KCAB has the consolidation regulation of the Panel of Arbitrator of which purpose is to regulate the criteria and procedure regarding the drawing up and maintenance of the panel of arbitrators. The UK Chartered Institute of Arbitrators has the criteria and qualifications for membership of which three grades are associate, member and fellow. The American Arbitration Association has the qualification criteria for admittance to the AAA National Roster of Arbitrators and Mediators. The Japan Association of Arbitrators has the official authorization regulation for membership of which three grades are special associate, ordinary associate and fellow. The UK Chartered Institute of Arbitrators has the ADR education programs which are composed of the mediation courses and arbitration courses. The American arbitrators Association has the ADR education programs which are composed of in-person training and online training. The Japan Association of Arbitrators has the ADR education programs which are composed of the cultivation courses of conciliator and the practical training courses of arbitrator. The efficient management devices of ADR education program are as follows: the execution of official authorization system of arbitrator, the establishment of specialized division for training and official authorization, the establishment of ADR regular training courses, the publication of ADR training texts and obtaining of instructors, and the consolidation of regulations related to the official authorization of arbitrator and ADR training. In conclusion, for the activation of ADR system, the KCAB and Korean Association of Arbitrators should make further effort to provide the ADR regular education and training programs for potential and practicing conciliators and arbitrators.

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Development of the Promoter Selection Procedural Model for Private Participation in Infrastructure Projects (민간투자 사업시행자 선정 절차 모델 개발)

  • Han Hyun-Jong;Choi Eung-Kyoo;Lee Chan-Sik
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.3 s.19
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    • pp.55-62
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    • 2004
  • The purpose of this study is to suggest a systematic procedural model for selecting competent project promoter. The proposed model was made by comparing domestic regulations and procedures with foreign nations', and through interviews with experts and literatures survey. The summaries of this paper are as follows. The current promoter selection procedure was evaluated by reviewing relevant papers, regulations and existing model. Some obstructions which hinder PPI project activation were identified, those are inadequacy of promoter qualification and negotiation process, lack of communication between parties, etc. Some alternatives which remove major obstructions are embodied in the model. The suggested model is comprised of PQ(prequalification), two phased evaluation for the technical proposals which include alternate, communication meeting, etc. To manage the overall procedure well, an involvement of professional "project promoter selection team" would be highly recommended. They will participate in each evaluation stage with full activities, and provide government with some technical materials for selecting promoter as coordinator.

A Study on the Development of Criteria and Subjects for The School Safety Manager Qualifications (학교안전관리사 자격의 검정기준 및 검정과목 개발 연구)

  • Hwang, Young Ah
    • Journal of the Korean Society of Safety
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    • v.32 no.1
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    • pp.98-107
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    • 2017
  • This study is aimed to design for qualification structure and develop the subjects for examination of the school safety manager qualifications. For the study purpose, job analysis and meetings with experts were performed for extract contents such as task range, criteria of examination, subjects of examination and examination methods, etc. The first step, duties and tasks of the school safety manager were figured out through revised job analysis data of the school safety manager developed before. On the second step, job model was established and developed job specification including importance, difficulty and frequency of each task. On the third step, task specification was developed, and Knowledge-Skill Matrix was the most important thing on examination were completed. The fourth step was the selection of examination subject using task-subject matrix and 6 subjects such as The Principles of Safety, Understanding of the School Safety Manual, Law Related on the School Safety, Introduction to Education, Understanding and Dealing with Type of the School Safety, Establishment of the School Safety Plan were derived from previous procedure. The fifth step was development of guidelines for design examination of each subject. The last step was development for skills education program.