• 한국군사과학기술학회지
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• 제16권2호
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• pp.111-117
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• 2013

In this paper, we have proposed novel technique to improve maintainability for training vehicle of underwater weapon system. In case of under water weapon, the fire procedure is related with operation of expulsion system in submarines. So the submarine crews should practice the complex fire procedure of weapon system by using training vehicle, which is safer and cheaper than operational weapon. After emitted from submarine, the training vehicle rise to the surface and should be withdrawn from the sea. The recovered training vehicle is transported to maintenance depot and pass through the recycling procedure including disassembling the vehicle, data acquisition & analysis, battery charge, replacing expandable components, testing the captive equipment, and assembling the vehicle. The disassembling & assembling of training vehicle which is composed of watertight section or airframe, is time-consuming work. So in this paper, we have studied the elements of recycling procedure and propose the method to exclude the assembling & disassembling work for maintainability improvement.

• 한국안전학회지
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• 제30권3호
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• pp.123-134
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• 2015

This study was conducted with the following three study objectives. First, effects of safety awareness level of lab researchers to the improvement of safety culture in the organization Second, effects of organizational safety behaviors to the improvement of safety culture Third, test of mediating effects of organizational safety behaviors in the relationship between safety awareness level and the improvement of safety culture. The results show that organizational safety behavior is an indispensable factor for the improvement level of safety culture. Especially, the factors in safety training activities, safety compliance and management system are mediating variables which affect the safety awareness level and improvement level of safety culture, which shows these variables are very important factors in reducing safety accidents through the improvement of safety culture. Therefore, safety behaviors in the organization should be considered with priority. If the organization leads to improve safety awareness through regular safety training and rewards and punishes according to the test results, safety awareness could be improved. This study was conducted to identify the necessary factors to improve the overall safety culture in the organization and contribute to the diffusion of safety culture by improving the safety training awareness of the researchers.

• Journal of Acupuncture Research
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• 제40권1호
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• pp.44-52
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• 2023

Background: Previous studies have investigated technology-aided needling training systems for acupuncture on phantom models using various measurement techniques. In this study, we developed and validated a vision-based needling training system (noncontact measurement) and compared its training effectiveness with that of the traditional training method. Methods: Needle displacements during manipulation were analyzed using OpenCV to derive three parameters, i.e., needle insertion speed, needle insertion angle (needle tip direction), and needle insertion length. The system was validated in a laboratory setting and a needling training course. The performances of the novices (students) before and after training were compared with the experts. The technology-aided training method was also compared with the traditional training method. Results: Before the training, a significant difference in needle insertion speed was found between experts and novices. After the training, the novices approached the speed of the experts. Both training methods could improve the insertion speed of the novices after 10 training sessions. However, the technology-aided training group already showed improvement after five training sessions. Students and teachers showed positive attitudes toward the system. Conclusion: The results suggest that the technology-aided method using computer vision has similar training effectiveness to the traditional one and can potentially be used to speed up needling training.

• 대한통합의학회지
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• 제1권3호
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• pp.79-95
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• 2013

Purpose : This study aims to investigate the effect of the Snoezelen and Rehacom programs on improvement of attention and memory, and the effect of the Snoezelen program on stress reduction. Method : This study was targeted at 11 subjects in the Snoezelen experimental group, 11 subjects in the Rehacom group and 11 subjects in the non-experimental group. As the initial evaluation, all the subjects took electroencephalography. Then, the Snoezelen group and Rehacom group did Snoezelen training and Rehacom training, respectively total 12 times(for 20 minutes twice per week for six weeks), but no training was applied to the control group. Three weeks after the training, the interim was carried out, and four weeks after the training, the final evaluation was carried out. Results : Subjects' attention increased to $58.15{\pm}4.96$ from $43.75{\pm}4.69$ during the Snoezelen training, and increased to $49.85{\pm}1.91$ from $43.28{\pm}2.71$ during the Rehacom training, which means the Snoezelen training was more effective in improving attention(P<0.05). Subjects' memory increased to $56.14{\pm}1.26$ from $43.19{\pm}3.46$ during the Snoezelen training, and increased to $50.94{\pm}4.0$ from $43.07{\pm}2.58$ during the Rehacom training. This also implies that the Snoezelen training was more effective in improving memory(P<0.05). Conclusion : Though both of the Snoezelen training and Rehacom training improved attention and memory, the Snoezelen program was more effective, and it also influenced stress resistance and physical arousal.

• 대한공업교육학회지
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• 제37권2호
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• pp.21-55
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• 2012

이 연구의 목적은 기술교사의 교수효능감 향상을 위한 직무연수를 개발하는데 있었다. 이 연구의 목적을 달성하기 위하여 델파이 연구법을 적용하였으며, 다양한 분야의 전문가 15명으로 전문가 집단을 구성하였다. 1차 조사 기간은 2012년 4월 9일부터 14일까지이었으며, 2차 조사 기간은 2012년 4월 18일부터 20일이었다. 1, 2차 모두 델파이 설문지를 100% 회수하였으며, 타당도 확보를 위해 합의도, 수렴도, 내용 타당도 비율(CVR)을 분석하였다. 이 연구의 결과는 다음과 같았다. 첫째, 기술교사의 교수효능감 향상을 위한 직무연수의 목적을 설정하였다. 그리고 교수효능감 향상을 위한 직무연수의 목표를 인지적 영역, 정의적 영역, 심체적 영역별로 각 4가지씩 총 12가지 설정하였으며, 4가지 연수의 필요성과 4가지 연수의 성격을 규정하였다 둘째, 기술교사의 교수효능감 향상을 위한 직무연수 프로그램을 10가지 영역으로 구성하였으며, 각 영역별 교육내용과 시수를 구성하였다. 셋째, 기술교사의 교수효능감 향상을 위한 직무연수에 적합한 교수법, 강사, 연수평가방법을 설정하였다. 넷째, 기술교사의 교수효능감 향상을 위한 직무연수의 총 연수 시간은 300시간이 적합하며, 10개의 영역으로 나누어, 각 영역별로 30시간씩 설정하는 것이 적합하다. 그리고 운영시기는 방학 중이 적합하고, 1일 연수 시간은 6시간이 적합하다. 다섯째, 기술교사의 교수효능감 향상을 위한 직무연수의 기관별 역할을 제안하였다. 여섯째, 기술교사의 교수효능감 향상을 위한 직무연수의 활성화 방안을 제안하였다.

• Journal of Information Processing Systems
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• 제14권5호
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• pp.1075-1086
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• 2018

In this paper a cross-validation algorithm for training probabilistic neural networks (PNNs) is presented in order to be applied to automatic face identification. Actually, standard PNNs perform pretty well for small and medium sized databases but they suffer from serious problems when it comes to using them with large databases like those encountered in biometrics applications. To address this issue, we proposed in this work a new training algorithm for PNNs to reduce the hidden layer's size and avoid over-fitting at the same time. The proposed training algorithm generates networks with a smaller hidden layer which contains only representative examples in the training data set. Moreover, adding new classes or samples after training does not require retraining, which is one of the main characteristics of this solution. Results presented in this work show a great improvement both in the processing speed and generalization of the proposed classifier. This improvement is mainly caused by reducing significantly the size of the hidden layer.

• 해양환경안전학회지
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• 제25권4호
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• pp.441-447
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• 2019

해사안전을 위한 비상대응훈련 및 해기교육기관의 안전교육은 정해진 시나리오와 교육내용을 기반으로 실시되기 때문에, 다양한 상황에 따른 인적오류 감소와 대응에는 한계가 있다. 이에 대한 개선 필요성이 요구되고 있으나, 기존 교육훈련에 대한 평가와 상황의 다양성 확보를 통한 대응능력 향상을 위한 방안은 부재하다. 본 연구는 비상대응훈련 개선을 위해 상황 다변성을 모델링할 수 있는 이론적 절차 분석기법을 제안한다. 선원과 시스템의 유기적 관계에 기반한 인적 및 시스템 이론적 절차 분석 모델(HSTPA)을 정의하고, 각 구성요소들이 발생시킬 수 있는 오류를 분석, 수직적 보고체계와 대응이 요구되는 화재대응 훈련 시나리오에 이를 적용하여 기존 훈련의 한계점을 식별하였다. 제안된 HSTPA 모델을 적용한 훈련 시나리오 고려요소의 세분화 및 점검은 비상대응훈련 및 교육에 있어 다양하고 현실적인 시나리오 생성과 피훈련자들의 상황판단 이해력 및 대응능력 향상에 도움이 될 것으로 판단된다.

• 수산해양교육연구
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• 제28권4호
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• pp.925-935
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• 2016

It is provided that seafarers qualified in accordance with STCW(International Convention on Standards of Training Certification and Watch-keeping for Seafarers) convention and code in safety training shall be required, every five years, to provide evidence of having maintained the required standard of competence, to undertake the tasks, duties and responsibilities listed in Chapter VI, section A-VI/1 of the STCW Code A. Every party to the STCW Convention has amended the relevant national regulations according to the above international convention and code. These amended Seaman's Act require the updating safety training which is only five years valid for existing seafarers serving onboard ship on international voyage. And above specified existing seafarers must, as of the 1st January 2017, have documentary evidence of either having completed the training course or updated their training within the last 5 years. In relation to the above international trend, the Korean Ministry of Oceans and Fisheries also has completed an amendment to its Seaman's Act. But, the Korean Seaman's Act has a supplementary provision to exempt the seafarers who have completed STCW advanced safety training from basic safety training. The purpose of this study is to define the problems of above mentioned exemption provisions and to make better policies for improvement. In order to complete the purpose, the research team has conducted an in-depth survey of various foreign cases on STCW safety training. Moreover, the team has suggested an improvement scheme in consonance with Korean shipping industry and society through out this report.

• 실천공학교육논문지
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• 제15권2호
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• pp.467-474
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• 2023

안전 불감증으로 인해 많은 인재가 발생하고 있는 우리나라 상황에서는 재난이 발생했을 때 대응할 수 있는 재난 안전교육이 매우 중요하다. 최근 가상현실 디바이스 및 제작 기술이 발전하며, 안전교육 분야에서 가상현실 기술을 접목한 훈련시스템 활용의 가능성이 주목받고 있다. 가상훈련시스템은 몰입감이 뛰어나고 시공간의 제약없이 다양한 재난상황을 체험할 수 있어 훈련 및 교육에 매우 효과적이다. 본 연구에서는 우리나라 재난 안전 가상훈련 콘텐츠 사례들을 수집 조사하여 국내 재난안전 가상훈련 콘텐츠의 현황을 파악하고 분석하여 문제점을 도출하고 이에 대한 개선방안을 제안한다.

• 한국항해항만학회지
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• 제34권8호
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• pp.615-621
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• 2010

본 논문에서는 상선사관을 위한 실습선에서의 효율적으로 실습 가능한 적정실습인원 및 설비 개선에 대한 연구를 수행하였다. 연구 수행을 위해 상선해기사를 양성하는 교육기관의 실습선에서 교육중인 실습생과 교원을 대상으로 적정 교육 인원에 대한 설문을 실시하고 실습 면적을 포함한 교육 설비에 대한 전반적인 제원 조사를 실시하여 이번 연구에 대한 기초자료를 준비하였다. 또한 연구의 신뢰성을 향상시키기 위해 인간공학에서 제시하는 공간개념을 도입하여 이번 연구에 적용하였다. 이러한 기초 연구 자료와 개념을 통해서 항해통합콘솔 장치라는 항해 실습생을 위한 교육 설비와 기관실습생을 위한 설비인 기기 정비 운용 실습교육장을 제안하였다. 그리고 제시된 설비에서 교육 받을 수 있는 적정 인원을 제시하였다.