• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.8
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• pp.3665-3671
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• 2013

This study was investigate to impact on safety accidents occurrence for the safety practices of middle school students learn the extent of the failure. A total of 292 patients and it survey data were collected from 5 November 2012 to 11 May 25 of research subjects. Research tools were used SPSS win17.0, the mean and standard deviation, Paired t-test, Pearson's correlation coefficient was used. Safey practice and cognitive failure of subjects was related to negative correlation and according as safety practices was higher, cognitive failure was low. According as safety practices and cognitive failure was low, Safety incidents experienced was high. Therefore, by applying safety practices and cognitive failure degree, it need to for research to come up with ways for the prevention of safety accidents. Besides, A variety of safety and accident prevention training programs by expanding the scope of the study in school, it should be done generalization of safety awareness, cultivate and Safety practice.

• Journal of Industrial Convergence
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• v.18 no.6
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• pp.1-7
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• 2020

In this study, we hypothesized that the needs for start-up support services may vary depending on the founder's psychological characteristics, such as self-efficacy or his attitude toward uncertainty. To verify this, a survey was conducted on the founders of 86 companies located in Business Incubators at Seoul and Daejeon and an empirical analysis was conducted based on the data. According to the analysis, the higher the self-efficacy of the founder, the more active he expressed his willingness to accept the start-up support service, which aims to provide start-up zones to busy areas outside the university. While the founder, who has experienced failure in the past, responded positively to attracting customers located outside the university. The results of this study supported the hypothesis and suggest that differentiated start-up support services should be designed by including not only characteristics at the level of start-up companies, such as industries and growth stages, but also the psychological characteristics of start-ups in important consideration.

• Journal of The Korean Association For Science Education
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• v.39 no.6
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• pp.707-715
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• 2019

The self-directed inquiry to improve students' core scientific competency is an important teaching method. Students experience a variety of difficulties in carrying out their inquiry tasks, sometimes fail to produce the desired results, or fail to perform a meaningless inquiry. This study was conducted to identify the causes of difficulties and failures in students' self-directed scientific inquiry. The study involved 16 high school students with experience in science research at science high schools and science-focused high schools. The data collection consisted of in-depth interviews centered on semi-structured open questions. Qualitative data analysis was imputed by finding paragraphs from the interview material that might reveal the difficulties and failures experienced by participants and the reasons for them. The study found that most of the causes of failure were lack of ability, incomplete procedures, and selection of complicated tasks. A variety of cognitive biases, such as overconfidence, planning fallacy, and groupthink, were also analyzed as causes. Based on the results of the study, it is necessary to develop an educational strategy that students can be fully prepared to reduce their trials and errors in a self-directed inquiry maximally.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2006.11a
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• pp.93-98
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• 2006

The advanced countries like the United States of America and Europe have experienced many failures in development of space launch systems. Research and analysis of the failures will be helpful to our launch system development. In this report, the failures of Space Shuttle in U.S.A. and Ariane in Europe were investigated and analyzed. These are excessively small portion of the failures, so it is necessary to investigate and research the more various failures of the other countries specially Russia(former Soviet Union).

• Journal of the Korean Society of Clothing and Textiles
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• v.47 no.6
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• pp.1096-1112
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• 2023

Many entrepreneurs who launched online fashion shopping malls faced failure compared to those who achieved success. Recognizing the importance of research that reflects reality, this study explores entrepreneurs' experiences during the failure process of online fashion shopping malls. Two studies utilized YouTube videos documenting such online fashion shopping malls' failure. Study 1 employed text mining techniques, including high-frequency analysis and topic modeling, while Study 2 used a qualitative research method, specifically grounded theory. Study 1 identified the prominent experiences of operating online fashion shopping malls, while Study 2 provided a holistic perspective on the failure processes. The integrated findings from both studies highlight that entrepreneurs' passion for fashion motivates them to establish online fashion shopping malls, yet they encounter numerous challenges during the operational process. Insufficient business preparation and operational capabilities contribute to their failure to achieve financial goals. Despite efforts to boost sales and profit, entrepreneurs often close their businesses due to inadequate funds and waning motivation. The outcomes of this study can inform us about the operational challenges faced by online fashion shopping malls and offer valuable insights for developing new strategies to sustain and improve them.

• Journal of KIISE:Computer Systems and Theory
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• v.33 no.1_2
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• pp.15-34
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• 2006

This paper introduces an empirical modeling technique. This technique uses a set of sample results which are collected from a few small scale simulations. Empirical models are developed by applying a couple of statistical estimation techniques to these samples. We built two types of models for cache miss rates in Symmetric Multiprocessor systems. One is for the changes of input data set size while the specification of target system is fixed. The other is for the changes of the number of processors in target system while the input data set size is fixed. To develop accurate models, we built individual model for every kind of cache misses for each shared data structure in a program. The final model is then obtained by integrating them. Besides, combined use of Least Mean Squares and Robust Estimations enhances the quality of models by minimizing the distortion due to outliers. Empirical modeling technique produces extremely accurate models without analysis on sample data. In addition, since only snail scale simulations are necessary, once a set of samples can be collected, empirical method can be adopted in any research areas. In 17 cases among 24 trials, empirical models present extremely low prediction errors below $1\%$. In the remaining cases, the accuracy is excellent, as well. The models sustain high quality even when the behavioral characteristics of programs are irregular and the number of samples are barely enough.

• Proceedings of the CALSEC Conference
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• 2002.01a
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• pp.369-394
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• 2002

국가와 시민의 관계에서 볼 때, 기존의 정치·경제·행정체제 및 운용의 모습은 많은 문제점을 드러내고 있다. 정치적으로 간접(의회)민주주의 제도는 국민참여의 축소, 공공의제 및 영역의 축소, 사회적 불평등의 심화 및 정치불신을 초래하였으며, 경제적으로 시장경제의 실패는 정부개입과 그에 따른 정부의 실패를 야기하였다(정정목, 2000). 또한 행정 부분에서는 삼권분립의 견제와 균형보다는 행정권의 강화에 따른 이른바 행정국가의 등장과 이에 따른 국민의 저항과 입법 및 사법부의 위축 등을 경험하였다. (중략)

• Digital Contents
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• no.8 s.75
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• pp.86-90
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• 1999

지난 연재를 통하여 정보시스템 프로젝트의 성공적인 관리를 위한 성공요인과 실패요인, 그리고 관리요소와 프로젝트 관리 프로세스에 대해 살펴보았고, 이제 우리는 과거의 실사례를 되짚어 읽어 봄을 통해 반면교사(反面敎辭)하는 기회를 가져보고자 한다. 본 고에서 제시된 사례들은 저자들이 실제 가까이에서 경험한 것들도 있고 이미 널리 알려진 사례들도 있으나, 지금까지 제시한 성공 및 실패요인과 관리요소, 그리고 프로세스 관점에 따라 재해석해 보는 기회를 가져보는 것도 의미가 있다고 하겠다.

• Proceedings of the KAIS Fall Conference
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• 2011.12a
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• pp.29-32
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• 2011

본 연구에서는 지속적인 증가 및 확대 추세에 있으나 여전히 많은 실패를 겪고 있는 SDO(Software Development Outsourcing) 프로젝트의 성과 향상을 위해 SDO 성과에 영향을 미치는 요인을 탐색하고자 하였다. 연구가설의 검증을 위해 SDO 경험이 있는 고객사의 정보시스템 인력을 대상으로 현장 설문조사를 실시하여 214개의 설문을 수집, 분석에 이용하였다. 분석 결과, SDO의 성과에는 벤더의 힘과 고객사 요구사항의 불변성, 목표의 명확성 그리고 목표의 일치 정도가 영향을 미치는 것으로 나타났다. 본 연구의 결과는 SDO의 실패를 낮추고 성공 가능성을 높이는 데 효과적으로 활용될 수 있을 것이다.

• Proceedings of the KIEE Conference
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• 2006.07b
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• pp.665-666
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• 2006

BLDC 모터는 전자적인 스위칭에 의해 전류(轉流)가 수행되므로 정상적인 동작만을 고려하여 모터 드라이버를 설계한 경우에는 초기 기동에 실패하는 사례가 빈번히 발생한다. 그 원인은 대개의 참고문헌이나 기술자료에서 초기 기동에 관한 요구사항은 찾아보기 매우 힘들고 전자부품의 특성상 사용자는 제조자가 서로 다른 다수의 부품을 조합하여 회로를 구성해야 하기 때문이다. 본 논문에서는 저자가 경험한 개발 사례를 중심으로 초기 기동실패의 원인분석과 그 해결책을 소개한다. 논문의 지면관계상 구체적인 이론에 근거한 기술보다는 회로설계에서 경험하는 실용적인 노하우를 중심으로 간추려서 소개한다.