• Title/Summary/Keyword: Evaluation-Tools

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A Study on the Evaluation of End Mills for High Speed Machining (고속용 엔드밀의 성능평가에 관한 연구)

  • 이정길;유중학;김문기;국정한
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2000.11a
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    • pp.833-837
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    • 2000
  • The purpose of this study is an evaluation of end mills to develop appropriate tools for the high speed machining. First of all, several flat end mills which are produced by different makers are selected to analyze the performances of the tools. Experimental works are also executed to measure cutting force, tool wear and surface roughness for different cutting conditions. And then the results are compared and analyzed for developing optimal cutting tool in the high speed condition. Especially, analysis about tool wear is introduced in this research.

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Ergonomic Evaluation and Improvement of the Manufacturing Lines of Compressors (컴프레서 제조공정의 인간공학적 개선에 관한 연구)

  • Bae, Dong-Cheol;Chang, Seong-Rok
    • Journal of the Korean Society of Safety
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    • v.20 no.1 s.69
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    • pp.148-152
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    • 2005
  • The purpose of this paper is to investigate risk factors and ergonomically improve the manufacturing lines of compressors for prevention of work-related musculoskeletal disorders, enhancement of productivity, and workers satisfaction We executed questionnaire survey, ergonomic risk factors investigation of manufacturing lines and ergonomic intervention of work methods, workplace and hand tools. The results of the questionnaire showed that $7.9\%$ of respondents were positive in WMSDs symptom survey. In ergonomic evaluation, the analysis methods such as RULA and NIOSH lifting equation were used and 28 processes in the lines were evaluated to be potentially hazardous. We ergonomically improved the processes to reduce potential WMSDs hazards : manual material handling, carts, work tables, transport methods, working posture and hand tools.

A Basic Study on the Evaluation of Flat End-mill Coated TiAlN (TiAlN코팅 평 엔드밀의 성능평가에 관한 기초 연구)

  • 유중학;국정한;김문기
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.10 no.5
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    • pp.130-136
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    • 2001
  • The purpose of this study is an evaluation of flat end mills to develop appropriate tools for the high speed machining. First of all, several flat end mills which are produced by different makers are selected to analyze the performances of the tools. Experimental works are also executed to measure cutting farce, tool wear and surface roughness for different cutting conditions. And then the results are compared and analyzed for developing optimal cutting tool in the high speed condition.

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Clinical Applications of Functional Near-Infrared Spectroscopy in Children and Adolescents with Psychiatric Disorders

  • Lee, Yeon Jung;Kim, Minjae;Kim, Ji-Sun;Lee, Yun Sung;Shin, Jeong Eun
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.32 no.3
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    • pp.99-103
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    • 2021
  • The purpose of this review is to examine the clinical use of functional near-infrared spectroscopy (fNIRS) in children and adolescents with psychiatric disorders. Many studies have been conducted using objective evaluation tools for psychiatric evaluation, such as predicting psychiatric symptoms and treatment responses. Compared to other tools, fNIRS has the advantage of being a noninvasive, inexpensive, and portable method and can be used with patients in the awake state. This study mainly focused on its use in patients with attention-deficit/hyperactivity disorder and autism spectrum disorder. We hope that research involving fNIRS will be actively conducted in various diseases in the future.

Consistency in Assessment of Creative Products in Terms of Evaluators' Knowledge of Creativity Assessment Criteria and the Type of Assessment Tools (창의적 산출물 평가에서 평정자의 지식 및 평가 도구 유형에 따른 일치도 분석)

  • Lee, Su Jin;Choe, Ho Seong;Park, Kyung Hee
    • Journal of Gifted/Talented Education
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    • v.26 no.4
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    • pp.677-697
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    • 2016
  • This study analyzed the difference in evaluation results in evaluating identical products by applying two different types of evaluating scales, Creative Product Analysis Matrix (CPAM) and Creative Product Semantic Scale (CPSS) by O'Quin and Bessember (1989). As a result, evaluation based on explicit knowledge scored lower than evaluation based on implicit knowledge, implying that the evaluation becomes stricter. When evaluated with CPSS, which as relatively more segmentalized grading criteria, all sub-dimensions of creativity showed low scores, and it show that when evaluator's first impression or personal evaluation standard on the products is firm, they may not be evaluated by the evaluation tools. Gifted education teachers were giving similar evaluations as experts in creative product evaluation, and understanding the product evaluation tool fully in advance before teaching or evaluating products may lead to the generation of newer, more useful and appropriate, and highly creative product with high solvability.

The Performance Evaluation for the Rail Road Train Spring (철도차량용 스프링의 On-Line 성능 평가 방법 연구)

  • 백수곤;박종범;김상봉;하승우;서승후
    • Proceedings of the KSR Conference
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    • 2001.05a
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    • pp.178-185
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    • 2001
  • So many springs in the rail road trains have been degeaded by the long time operation. Specially vibrations makes worse the condition of the springs. The performance evaluation technique for the rail road spring was developed. Using integrated handy tools using hydraulic systems, LVDT, and related software, On-line evaluation is possible to check the system integrity.

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An empirical evaluation of electronic annotation tools for Twitter data

  • Weissenbacher, Davy;O'Connor, Karen;Hiraki, Aiko T.;Kim, Jin-Dong;Gonzalez-Hernandez, Graciela
    • Genomics & Informatics
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    • v.18 no.2
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    • pp.24.1-24.7
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    • 2020
  • Despite a growing number of natural language processing shared-tasks dedicated to the use of Twitter data, there is currently no ad-hoc annotation tool for the purpose. During the 6th edition of Biomedical Linked Annotation Hackathon (BLAH), after a short review of 19 generic annotation tools, we adapted GATE and TextAE for annotating Twitter timelines. Although none of the tools reviewed allow the annotation of all information inherent of Twitter timelines, a few may be suitable provided the willingness by annotators to compromise on some functionality.