scholarly journals NASA Technical Standards Program and Implications for Lessons Learned and Technical Standard Integration

2002 ◽  
Author(s):  
Paul S. Gill ◽  
Danny Garcia ◽  
William W. Vaughan
Keyword(s):  
Lessons Learned ◽  
Technical Standard ◽  
Technical Standards ◽  
Standard Integration

Current Status of RRA Rules Development in JSME Fitness-for-Service Code

2010 ◽  
Author(s):  
Koji Dozaki ◽  
Satoshi Yamamoto ◽  
Koji Koyama
Keyword(s):  
Nuclear Energy ◽  
Japanese Society ◽  
Industrial Safety ◽  
Current Status ◽  
Technical Standard ◽  
Technical Standards ◽  
Regulatory Authorities ◽  
Technical Assessment ◽  
The Relationship ◽  
Service Inspection

Rules on Repair, Replacement Activities (RRA) in Fitness-For-Service (FFS) Code of the Japanese Society of Mechanical Engineers (JSME) have been under development since the 2004 Edition. The FFS of 2010 Addenda to the 2008 Edition is under preparation for publishing at present. However, Japanese regulatory authorities, the Nuclear and Industrial Safety Agency (NISA) and Japan Nuclear Energy Safety Organization (JNES) have not endorsed the RRA rules yet, even though the rest of the FFS Code, i.e. inspection and flaw evaluation rules have been already endorsed. NISA/JNES have not even begun technical assessment of RRA rules yet, because regulatory authorities do not consider that RRA rules of JSME FFS Code have a completed system of RRA, inspection and flaw evaluation rules, e.g. in-service inspection intervals after repair. Also, the regulatory authorities are concerned that no method has yet been established by NISA/JNES to confirm the conformity of RRA rules in FFS Code with the governmental technical standard. In order to solve the problem of developing the completed system of RRA and related rules and of providing information on the relationship between RRA rules and governmental technical standards so as to assist regulatory authorities’ understanding, the RRA part of the JSME FFS Code was modified in the 2010 addenda. This paper describes the major features of the code modification of RRA rules in the 2010 Addenda. Remaining issues to be solved in future addenda or editions are also discussed.

scholarly journals Plataforma experimental para análise do rendimento de motores de indução trifásicos por meio de ensaios específicos recomendados na norma técnica NBR17094-3:2018

ForScience ◽  
2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Vinícius Marcos Pinheiro ◽  
Luciano Coutinho Gomes ◽  
Cássio Alves De Oliveira
Keyword(s):  
Induction Motors ◽  
Testing Machine ◽  
Efficiency Analysis ◽  
Technical Standard ◽  
Technical Standards ◽  
Thermal Tests ◽  
Experimental Platform ◽  
Motor Efficiency ◽  
Three Phase

Os principais equipamentos encontrados para realização de movimentos mecânicos são os motores elétricos, sendo que a maior parte destes é constituída pelos motores de indução trifásicos. É inegável a crescente preocupação com a questão da eficiência energética, sendo estes equipamentos os maiores consumidores de energia elétrica, principalmente, nas indústrias. Sendo assim, este trabalho apresenta uma plataforma experimental implementada para a obtenção do rendimento dos motores de indução trifásicos a partir da determinação dos parâmetros do circuito equivalente, de ensaios térmicos e ensaios específicos para obter as perdas da respectiva máquina, com base em procedimentos presentes na norma técnica NBR17094-3:2018 da Associação Brasileira de Normas Técnicas. Neste contexto, o rendimento foi obtido para diversos carregamentos para um motor de 3 cv a partir da variação de carga em seu eixo, utilizando, para isso, uma máquina de corrente contínua. Tal plataforma permite verificar o desempenho de motores antigos, motores que passaram por processo de rebobinagem ou motores construídos sob encomenda.Palavras-chaves: NBR17094-3:2018. Motor de indução trifásico. Rendimento. Parâmetros.Experimental platform for efficiency analysis of the three-phase induction motors through specific tests recommended in the technical standard NBR17094-3:2018AbstractThe main equipment used to perform mechanical movements are electric motors, since its majority are composed by three-phase induction motors. There is an undeniable growing concern about the energy saving, being this equipment the major consumers of electricity, especially in industries. Thus, this work presents an experimental platform, implemented to get the performance of the three-phase induction motors from the determination of equivalent circuit tests, thermal tests and specific tests to obtain  the losses of the testing machine based on procedures in technical standard NBR17094-3: 2018 of the Brazilian Association of Technical Standards. In this context, the yield was obtained for several loads for a 3 cv engine from the load variation on its axle using a direct current machine. Such platform makes it possible to check the performance of older engines, engines undergoing the rewinding process or custom manufacturing engines.Keywords: NBR17094-3:2018. Three phase induction motor. Efficiency. Parameters.

scholarly journals Progress made and prospect of China's maglev transportation technology standardization

2018 ◽  
Vol 4 (3 suppl. 1) ◽  
pp. 246-252 ◽  
Author(s):  
Peiliang Yan
Keyword(s):  
Social Organization ◽  
Standard System ◽  
Rail Transit ◽  
Transportation Engineering ◽  
Technical Standard ◽  
Technical Standards ◽  
Basic Principles ◽  
Industry Standards ◽  
Technical Industry ◽  
Technology Standardization

Background: In order to standardize maglev transportation engineering and its operation, the research of maglev transportation technical standards becomes important. Based on the analysis of the growth of rail transit, the acceleration of maglev transportation engineering, the China’s standardization regulation and the maglev transportation technology standardization practice, Aim: This paper proposes the basic principles for establishing maglev transportation standard system and the framework of maglev transportation technical standard system, introducing China’s maglev transportation technology standardization mechanism, its achievements, prospects and experiences. Results: By the end of 2017, China had developed 12 maglev transportation technical industry and provincial standards. Conclusion: There are 12 maglev transportation technical industry standards and social organization standards under development.

scholarly journals Technical standards opportunity identification of Chinese manufacturing industry

2021 ◽  
Vol 336 ◽  
pp. 09014
Author(s):  
Xueyuan Wang ◽  
Meixia Sun
Keyword(s):  
Future Development ◽  
Manufacturing Industry ◽  
Technical Standard ◽  
Scatter Plot ◽  
Opportunity Identification ◽  
Technical Standards ◽  
The Core ◽  
Core Method ◽  
Technology Gaps ◽  
Chinese Manufacturing Industry

Based on Standard Literature Library of CNKI, opportunities for technical standards development are identified. The initial keywords of technical standard are determined based on LDA model, whose similar keywords are further confirmed by Word2Vec, and then combining LDA model with Word2Vec the representative keywords of technical standard of manufacturing industry are determined. According to confirmed representative keywords, the core technical standards of manufacturing industry are identified by using the center degree and “M-core” method. The dimensions of the frequency square matrix are reduced by using the PCA module of Python, and the scatter plot is brawn, the technology gaps are identified by combing the consideration on the core technical standards, and then the future development opportunities are confirmed based on the map of patent technology effect matrix.

Principles for Procedure System Management

2001 ◽  
Author(s):  
Maggie Sturdivant ◽  
Earl Carnes
Keyword(s):  
Lessons Learned ◽  
Nuclear Industry ◽  
Department Of Energy ◽  
Effective Procedure ◽  
System Management ◽  
Technical Standard ◽  
Causal Factors ◽  
Control Production ◽  
The U.S

Abstract This paper provides a preview of a DOE Technical Standard “Principles for Procedure System Management” due to be released in the fall of 2001. Procedures are identified as causal factors in accidents, operating events, and lessons learned within the U.S. Department of Energy (DOE), the commercial nuclear industry, and other complex industries. While literature exists regarding the control, production, and use of procedures, DOE has not provided guidance on the collective elements and attributes of an effective procedure system. This paper describes a set of design control features that can systematically improve development and maintenance of procedures.

Challenges for e-governance: protests from civil society on the protection of privacy in e-government in Korea

2005 ◽  
Vol 71 (1) ◽  
pp. 151-166 ◽  
Author(s):  
Whasun Jho
Keyword(s):  
Civil Society ◽  
Technical Standard ◽  
Technical Standards ◽  
Korean Society ◽  
Social Standards ◽  
Social Standard ◽  
The Social ◽  
The Government ◽  
New Perspective ◽  
Electronic Education

This article analyzes the factors that caused recent conflicts between the Korean government and civil society over e-government initiatives and draws implications for e-governance. The disputes over the government’s digitalization initiatives in Korea, for example the conflicts over the electronic education system and the national electronic ID card, show that the government in Korea as in other countries has faced fierce opposition from citizens and suffered major setbacks in pursuing its ICT projects. This article argues that the current cases in Korean society should be understood from a new perspective, one which emphasizes the interaction between the technical standard and the social standard. It shows that the gaps between technical standards, which idealize efficiency, and social standards, which weigh e-privacy as supreme, breed conflict. Finally, the research draws some implications of the analysis for e-governance and democracy.

scholarly journals Endodontic root canal treatment performed by undergraduate dental students: Identification of technical standard and post-endodontic restorations

2019 ◽  
Vol 15 (4) ◽  
pp. 600-603
Author(s):  
Norazlina Mohammad ◽  
Faizah Abd Fatah ◽  
Norzalina Ghazali ◽  
Ahmad Zaim Muhamad ◽  
Nurhidayah Hamir
Keyword(s):  
Root Canal ◽  
Dental Students ◽  
Post Treatment ◽  
Root Canal Treatment ◽  
Successful Outcome ◽  
Technical Standard ◽  
Endodontically Treated Teeth ◽  
Technical Standards ◽  
Root Canal Filling ◽  
Periapical Healing

Root canal treatment (RCT) is a procedure to eliminate pulpal diseases with the aim to promote healing of the periradicular tissue. The RCT conducted must be of high technical standard and achieve a good quality endodontic work (GQEW) to ensure successful outcome and prolonged retention of the teeth in oral cavity. Previous studies reported poor outcome of RCT conducted by the undergraduate dental students. There is limited report documented on the quality of RCT performed by the dental students in Malaysia. The aim of this study was to identify the technical standards of the RCT and types of post-endodontic restoration placed by USIM undergraduate dental students. The radiographic obturation quality from 274 root filled teeth were evaluated against several indices. The data were analyzed using SPSS version 21. Post treatment radiographs indicated that 84.62% of the RCT have adequate density indicating good apical seal. Meanwhile, for obturation level, the root canal filling that ends 0-2mm (optimal), >2mm away (inadequate), and beyond apex (extrusion) were 84.59%, 5%, and 10.77%, respectively. Teeth with GQEW, having both adequate root filling length and complete obturation were found in 194 (74.6%) teeth. McNemar’s test revealed significant reduction in post-treatment periapical index (p<0.001) indicating good periapical healing. Permanent restoration was only placed in 48% of the teeth. In conclusion, the RCT conducted by USIM undergraduate dental students have a good technical standard. Placements of post-endodontic permanent restoration need to be emphasized in the curricular to ensure long-term success of the endodontically treated teeth.

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