• 한국벤처창업학회:학술대회논문집
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• 2017.04a
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• pp.58-58
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• 2017

본 연구는 미래에 창업을 하고자하는 예비창업자에게 창업의도의 방향을 제시하기 위해 창업을 하기 전 자신을 알게 하고 정부지원과 교육의 필요성, 중요성을 일깨워주는 연구로 실증적으로 조사 규명하였다. 향후 예비창업자에게 창업준비를 충분히 하여 실패를 줄이고 정부지원제도의 지원체계가 복잡하지 않은 효율적인 제도가 되길 시사점으로 제시하였다. 실증 분석의 대상은 인천지역 직장으로 고용에 불안한 비정규직과 퇴직을 앞둔 남녀로 조사 258개 데이터로 사용 하였으며 창업을 하고 싶지만 자신감이 부족하고 실패에 대한 불안감으로 시작을 못하였다는 점으로 미루어보아 의미 있는 조사 분석이였다. 측정도구의 신뢰도 타당성을 검증하기 위하여 요인분석과 신뢰도 분석을 실시 카이저 (Kaiser Rule) 규칙이 있는 베리맥스(Varimax)직각회전을 이용한 주성분 요인분석을 사용하였다. 가설검증 결과 예비창업자의 심리적 특성, 창업준비 특성이 창업의도에 영향을 미치는 것으로 나타났으며 창업교육 조절효과 분석 결과는 창업준비 기간과 창업의도 간에 조절효과가 나타났다. 개인적 특성에 따른 창업의도는 창업준비 특성에서 차이가 보여 졌다. 본 연구는 예비창업자로서 창업의도에 창업자로서 특성을 갖추어 성공적인 창업을 준비하고 정부지원제도에 필요한 자료로 제시하고자 한다.

• Journal of the Korean Institute of Navigation
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• v.25 no.2
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• pp.97-106
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• 2001

The purpose of this paper is to determine the expected percentage of the 'VTS addressable' casualties that could be prevented with the installation of fourth level(Automatic Dependent Surveillance) of coastal VTS. In this study, it determines the VTS benefit by multiplying casualty rate reduction factors by the effect level of causal factors. The development of casualty rate reduction factors was based on the questionnaire survey, and the evaluation of effect levels was based on the causal analysis using functional block diagram. The results of this paper are compared With the results of worldwide literature related to the VTS effectiveness. One or more of the key variable inputs of this study, casualty rate reduction factors, may be somewhat uncertain and therefore subject to sensitivity analysis.

• Journal of the Korean Society of Propulsion Engineers
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• v.13 no.4
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• pp.22-29
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• 2009

Development of Moon Explorer-1 (orbiter) is supposed to be commenced in 2017 and launched in 2020. In case of Moon Explorer-2 (lander), it would be slated to start in 2021 and launch in 2025. In this paper conceptual feasibility studies are conducted for the propulsion system applicable to a Moon Explorer. In the first place the availability of monopropellant/bipropellant/electric propulsion system is examined with domestic as well as overseas precedents. Secondly ${\Delta}V$ is estimated by the mission analysis and the propellant budget is calculated accordingly. Subsequently feasibility of a chemical propulsion system for a Moon Explorer is evaluated.

• Journal of Korea Society of Industrial Information Systems
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• v.7 no.4
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• pp.66-73
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• 2002

Although the general sliding mode control has the robust property, bounds on the disturbances and parameter variations are known to the designer of the system control. But sometimes these bounds may not be easily obtained. However, fuzzy control provides an effective way to design the controller of the system with the disturbances and parameter variations. Therefore, combination of the best feature of fuzzy control and sliding mode control is considered. When using the conventional VSC, generally the reaching phase problem occurs, which cause the system response to be sensitive to parameter variations and external disturbances. In order to overcome these problems, an adaptive fuzzy VSC with sliding surface eliminating reaching phase is proposed. The validity of the proposed scheme is shown by results of experiments for the BLDC motor.

• Journal of Navigation and Port Research
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• v.35 no.6
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• pp.509-514
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• 2011

The purpose of this study is to provide some ideas for the improvement of the seafarers physical examination systems(PES) in Korea. This paper presents basic data about the items and detailed standards of the seafarers PES which are currently carried out worldwide. In this paper, a comparative analysis of the domestic and the foreign seafarers PES is conducted. In addition, rule of judgment in the railroad workers PES in Korea has been examined for reference. The paper proposes the amended and supplemented 16 items and detailed standards of the seafarers PES. Expert opinions of Occupational and Environmental Medicine specialist and the recommendations of ILO/WHO are also considered to draw an improvement scheme for the seafarers PES in Korea.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.214-216
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• 2021

It proposes a plan to strengthen the limitations of existing corporate security systems based on Zero-Trust. With the advent of the era of the Fourth Industrial Revolution, the paradigm of security is also changing. As remote work becomes more active due to cloud computing and COVID-19, security issues arising from the changed IT environment are raised. At the same time, in the current situation where attack techniques are becoming intelligent and advanced, companies should further strengthen their current security systems by utilizing zero trust security. Zero-trust security increases security by monitoring all data communications based on the concept of doubting and trusting everything, and allowing strict authentication and minimal access to access requestors. Therefore, this paper introduces a zero trust security solution that strengthens the existing security system and presents the direction and validity that companies should introduce.

• Research in Plant Disease
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• v.16 no.1
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• pp.66-73
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• 2010

Field trials were conducted in Suwon, Andong, Bongwha and Taean to evaluate an anthracnose forecaster in the integrated pest management system (IPM) including anthracnose, Phytophthora blight and tobacco budworm for hot pepper in 2008-2009. Percentage of diseased fruits by pepper anthracnose and yield were compared among three treatments, no-fungicide, forecaster and conventional. The incidence and yield of the forecaster at Bongwha on two varieties were 3.1-3.5% and 30-33 kg/40 plants. These were little less than those of the conventional's 0.3-0.8% and 35-36 kg/40 plants and much higher than those of the no-fungicide's 23-27% and 18-24 kg/40 plants. The number of spray at the forecaster was 5 times, whereas those at the conventional was 11-19 times depending on the farmers. In addition, the results of an anthracnose forecaster at the other three field trials allowed in protecting hot pepper from anthracnose while reducing the amount of pesticides used and the total cost of the pathogen control. However, it is needed to improve for anthracnose forecaster when anthracnose pressure was high such as Taean where 60-80% of the incidence. Because the control values of the forecaster at Taean were between those of no-pesticide and conventional treatment at best. If anthracnose is severe early in the season, additional preventive control should be considered when the fruits were fully grown yet.

• The Journal of the Convergence on Culture Technology
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• v.9 no.4
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• pp.211-221
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• 2023

The purpose of this study is to improve the validity of the evaluation by adding the factor of academic achievement to the subject of evaluation, and to improve the reliability of the evaluation by verifying the legitimacy of control of in-class attitude and developing the correction index of satisfaction of teaching. The results of the study are as follows. Firstly, it was confirmed that the students' in-class attitude had a significant effect on satisfaction of teaching. The more positive the in-class attitude, the higher the satisfaction of teaching, and vice versa. Secondly, it was confirmed that the students' in-class attitude had a significant effect on academic achievement. The more positive the in-class attitude, the higher the academic achievement, and vice versa. Thirdly, it was confirmed that satisfaction of teaching did not have a significant effect on academic achievement. High satisfaction of teaching does not mean that the quality of the teaching is high, and vice versa. Fourthly, the correction index of satisfaction of teaching was developed to correct the results of satisfaction of teaching that may be distorted due to the students' negative in-class attitude. In conclusion, academic achievement should be added as the subject of evaluation in addition to the satisfaction of teaching to improve the validity of evaluation and the correction index of satisfaction of teaching should be applied to improve the reliability of evaluation.

• Korean Journal of Construction Engineering and Management
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• v.24 no.1
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• pp.3-11
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• 2023

According to the post evaluation scheme in Korea of a public construction project which is more than 30 Billion KRW, project performance is evaluated by investigating outcomes and effects of the construction after the completion of the project. The current post evaluation results can be used for planning and estimating a construction project in the future. However, it is not easy to utilized for an on-going project because the system does not provide the phase-based performance of a project. Although project planning performance is important for project initiation, few attempt has been made to evaluate planning performance in Korea. The purpose of this study is to provide a conceptual performance evaluation of planning performance using preliminary feasibility study conducted by Korea Development Institute. This study developed a planning performance database using data extracted from preliminary feasibility study reports of the completed 354 road construction projects. This study analyzed the performance of the planning stage of road projects by developing absolute metrics such as standard construction cost and standard construction schedule based on a Lane-Km. Using the standard construction cost and schedule metrics, the planning performance was analyzed by project characteristics. The results of this study can be used for phase-based performance evaluation from planning phase to construction phase.

• Journal of Korean society of Dental Hygiene
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• v.10 no.2
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• pp.425-440
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• 2010

목적 : 현재 우리 사회는 건강증진에 대한 욕구가 증가함에 따라 보건의료에서 질적 서비스향상이 요구되고 있고, 구강진료를 분담하는 치과위생사들도 보다 전문적인 역할을 수행하기 위해서는 지식과 기술의 수준향상이 필요하다. 이에 치과위생사의 질적 수준을 향상시키는 데 가장 빠르고 효과적인 방법이 국가시험제도이며 국가시험에서의 타당성과 신뢰성을 높이고 필요한 과목과 내용을 직무를 중심으로 조정한다면 가장 좋은 방법이라고 사료되어 현행 우리나라 치과위생사 국가시험제도에 따른 문제점을 파악하고 캐나다 국가시험 제도와의 비교를 통해 문제점을 분석하고 이에 따른 개선책을 알아보았다. 방법 : 전국 치과위생사 교육기관에 근무하는 교수와 의료기관에 종사하는 치과위생사 중에서 최근 국가시험 응시경험자를 대상으로 2008년 6월 9일부터 6월 23일까지 설문조사를 실시하였으며 E-mail 과 Fax를 이용하였다. 캐나다 국가시험제도는 National Dental Examinations American Dental Association. National Board Dental Hygiene Examination Candidate Guide자료를 사용하여 비교하였다. 자료의 분석은 SPSS통계프로그램(Version 11.0)을 이용, Chi-square 검정을 하였으며, Fisher's Exact Test에 의한 검정을 실시하였다. 결과 : 1. 국가시험과목구성은 현행 국가시험과목구성에 문제가 있는 것으로 사료되어 과목조정 필요성이 큰 것으로 나타났고, 특히 대학근무자가, 나이가 많을수록, 재직기간이 길수록 더 높았다. 2. 국가시험 문제의 유형은 암기해석 문제가 대부분이었고 난이도는 비교적 양호하였으며, 전문성도 있는 것으로 조사되었다. 3. 과목조정 필요성은 구강생물학개론, 치과임상학 순으로 상대적으로 높았다. 캐나다 국가시험과 비교해 보면 치과임상학과 구강위생학개론 분야의 조정이 더욱 필요한 것으로 나타났다. 4. 한국과 캐나다의 국가시험제도는 형식은 비슷하나 내용과 과목의 구성에서는 큰 차이가 있었다. 5. 캐나다의 국가시험과 비교 시 한국은 치과위생사의 포괄적인 치과위생관리능력을 평가하기 어려웠다. 결론 : 이상의 결과로 보면 현행 국가시험은 과목 구성이 부적절하므로 조정의 필요성이 시급한 것으로 조사되었으며, 캐나다 국가시험과는 과목구성에서 큰 차이가 있었고 치과위생사에게 요구되는 포괄적 치과위생관리능력을 평가할 수 없는 것으로 조사되어 현행 국가시험 개선이 요구되었다.