• 한국정보통신학회논문지
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• 제25권2호
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• pp.327-329
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• 2021

Underwater acoustic communication channel is influenced by environmental parameters such as multipath, background noise and scattering. Therefore, a transmitted signal is influenced by the sea surface and the sea bottom boundaries, and a received signal shows a delay spread. These factors create a noise in the image and degrade the quality of underwater acoustic communication. To solve these problems, in this paper, we evaluate the performance of an underwater acoustic communication model using a denoising auto-encoder used for unsupervised learning. Noise images generated by the underwater multipath channel were collected and used as training data. Experimental results were analyzed as a PSNR parameter that expressed the noise ratio of the two images.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2020년도 추계학술발표대회
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• pp.501-504
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• 2020

본 프로젝트는 한국 의료 진로 서비스의 문제점을 개선하고자 인공지능 기반의 챗봇을 이용해 환자와 의사 간의 의사소통을 증진시키는 데 목적이 있다. Web UI 를 제공하는 Rasa X 챗봇(Chatbot) Tool 을 이용하여 메시지와 이미지를 송신할 수 있는 챗봇을 구축해냈다. 또한 YOLO model training 으로 충치 Detection 기능 등 인공지능을 접목시켜 더 효율성있는 어플리케이션(Application)을 개발했다. 이는 최근 코로나-19 로 비대면 서비스가 각광받는 가운데 챗봇 모델은 가장 경제적이고 효율적으로 실생활에 적용될 기술이다.

• 시큐리티연구
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• 제6호
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• pp.291-326
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• 2003

The first, Improvement of education training condition Education training is influenced by facilities, environment around. according to questionnaire, it is very poor, we should set up a training institute as soon as possible. The second, Improvement of education training contents In working as special guard, they do not feel the need of curriculums like bayonet fencing, criminal law, and so on. accordingly we should adjust the contents of educaton training. The third, Improvement of education training course People were satisfied with the contents of lectures and educator more than half to some degree, but there was a question of time, communication, contents. we should try to remedy things like this. The fourth, Adjustment of education training time The 60% people of all were not satisfied with the time of education training about new duty. we need to intensify and oversee a duty training and the restructure of training time. The fifth, Fairness of valuation reward and punishment in education training The 80% people of all had the bad feeling against reward and punishment, so we tried to let fairness of valuation, reward and punishment completed by educational institution. The sixth, Establishment of the institution for special guard special guard have to be raised by special institution, but lacking of educational program, educational facility, educational Environment, university took the place of government as institution in raising special guard, education still leave much to be desired. so to develop the industry of a civil security, government or a guard association will set up the school of training, education, system about civil security as a whole. The seventh, Improvement of education training form People have to be taught for 80 hours in education training. according to questionnaire, over 75%people wanted to lodge at education accommodation, so in doing education training, we need to improve a system and form. The eighth, Operation of education training suitable for a characteristic in jobs In the education of 80 hours, common courses will need to be carried out together, depending on class, the object of national facility, inspection and practice will need to be done. maybe this can be the improvement of growing up education training. In the result of the study, we need to build up the satisfaction of education training through a lot of opinion like program, system, circumstances. Keep in mind that the paper was a few of problems because of the limit of the survey of 132 peoples, accordingly we try to collect a survey related with this around country. especially this will need to be asked for harmony between the law and the background of system. in the future, to develop the special guard service, increase the demand of this service, have to raised the expert and the special guard service has to enlarge.

• International journal of advanced smart convergence
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• 제6권2호
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• pp.9-15
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• 2017

According to a recent survey, most elementary and secondary school students nationwide are stressed out by their academic records. Furthermore most of high school students in Korea have to study under the great duress. Some of them who can't overcome the academic stress finalize their life by suiciding. A study has found that it is one of the leading causes of stimulating the thought of committing suicide in Korean high school students. So it is necessary to reduce the high school student's suicide rate. Main content of this research is to implement a personalized music recommendation system. Music therapy can help the student deal with the stress, anxiety and depression problems. Proposed system works as a therapist. The music choice and duration of the music is adjusted based on the student's current emotion recognized automatically from EEG. If the happy emotion is not induced by the current music, the system would automatically switch to another one until he or she feel happy. Proposed system is personalized brain music treatment that is making a brain training application running on smart phone or pad. That overcomes the critical problems of time and space constraints of existing brain training program. By using this brain training program, student can manage the stress easily without the help of expert.

• 한국콘텐츠학회논문지
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• 제13권12호
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• pp.530-539
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• 2013

병원코디네이터 교육은 아닌 병 의원 실무에서 가장 필요로 요구하는 것을 반영하여 병원서비스 전문인력으로서 역량을 갖출 수 있도록 하는 표준화된 교육프로그램이 요구된다. 이 연구는 병원코디네이터 민간자격증 발급기관과 자격취득을 위한 검정과목 및 사설교육기관의 교육프로그램을 분석하고, DACUM(Developing A Curriculum) 법을 활용하여 각 유형별 병원코디네이터가 의료서비스 현장에서 요구되는 기본역량과 핵심역량을 분석하여 표준화된 교육프로그램을 제안하기 위해 시도되었다. 병원현장에서 근무하고 있는 전문가 11명을 대상으로 DACUM 법을 통하여 도출된 공통기본역량은 친절한 서비스마인드, 고객을 가족처럼 생각하는 마음가짐, 고객응대 및 전화예절과 매너, 커뮤니케이션 스킬, 고객 심리학, 의학기초, 건강보험관련이해, OA(Office Automation)장비활용능력, 컴퓨터 활용능력, 병원정보관리 및 프로그램 활용능력, 직원들과의 친화력 등이었다. 이를 바탕으로 16개의 교과목을 포함한 표준교육프로그램을 제안하였다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 제37회 하계학술대회 논문집 A
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• pp.68-69
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• 2006

A new type of simulation training system for power system operation is presented in this paper It is based on transmission mimic board, double screen PC, mimic control panel, and real-time digital simulator, KEPS. The operating simulation includes the simulations of the control panel interface and the simulator. The mimic board displays transmission network summary information using a software view of the hardware based mimic board. The symbols, numbers and colors layout exactly match those of the KEPS draft case to provide operators a familiar and effective starting point. This paper describes the development of an innovative training system, utilizing the benefits of 3 dimension visualization s/w and communication-control s/w to create the appropriate operational environment and allow simulation of various power system operations without the restrictions of other training methods. Experiences gained in developing concepts and meeting considerable s/w challenges are outlined, and the potential of the simulator for future operations training discussed.

• 한국정보통신학회논문지
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• 제18권4호
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• pp.934-940
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• 2014

최근 웹에 접근할 수 있는 다양한 기기들의 출현은 웹 개발 분야에 많은 기술적 변화를 가져왔다. 그러나 아직도 일부 웹 사이트들은 여전히 PC 중심으로 운영되고 있고, 특히 직업훈련관리 시스템은 폐쇄적이고 지원 부족으로 PC만을 타깃으로 한 사용자 웹 인터페이스를 제공하고 있다. 본 논문에서는 직업훈련관리 시스템을 대상으로 다양한 디바이스에서 적용할 수 있는 기술과 메뉴구성으로 훈련생들이 보다 쉽게 접근할 수 있는 적용 기술을 제시하고, 구현된 시스템을 실제 현장에서 적용하여 효율성을 검증하였다.

• 한국컴퓨터정보학회논문지
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• 제17권3호
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• pp.27-32
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• 2012

평형감각 측정은 물리 치료, 신경, 스포츠 의학 및 재활 의학 분야에서 광범위하게 사용된다. 본 논문은 평형감각 측정 및 재활 훈련 시스템의 개발을 제공한다. 이를 위해, 평형 보드의 아래 표면에 부착된 3축 가속도계 센서를 사용하여 프로토 타입 시스템을 개발하였다. 실험 결과, 시스템은 안정적으로 동작하고 측정자의 평형감각 정도를 잘 나타내었다. 또한 재활 훈련을 위해 다양한 패턴이 용이하게 추가될 수 있다. 이 시스템은 일상적인 평형감각 모니터링에 사용될 수 있으며, 훈련의 효율을 증대하는데 기여할 것이다.

• 의학교육논단
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• 제18권2호
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• pp.83-89
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• 2016

The purpose of this study was to elucidate to what extent the goals of the leadership training program implemented in a medical college were achieved. Study subjects consisted of 74 first-year premedical students at the College of Medicine of The Catholic University of Korea. All participants completed two questionnaires: an 18-item self-leadership questionnaire asking self-expectation, rehearsal, goal setting, self-rewards, self-judgment and constructive thinking, and a 28-item self-efficacy questionnaire asking preference toward difficult work, efficacy of self-control, and confidence before and after the leadership training program. Students also competed a program satisfaction survey after the program. The collected data were analyzed with a paired t-test, descriptive statistics by IBM SPSS ver. 20.0 (IBM Co., Armonk, NY, USA). Students' overall satisfaction with the program scored 4.06 out of 5. The scores of self-leadership and self-efficacy increased after the leadership training program except for 'confidence' in self-efficacy. The results indicate that an intensive leadership program in a short period of time could help to enhance social competencies such as communication skills, empathy, self-reflection, and teamwork of premedical students.

• 전자공학회논문지
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• 제49권12호
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• pp.64-72
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• 2012

주파수 옵셋 보상, 프레임 동기화, Timing Recovery를 포함하는 동기화는 모든 유/무선 통신 시스템에서 가장 중요한 신호 처리 블록이다. 대부분의 통신 시스템에서는 Training sequences 또는 프리앰블을 기반으로하는 동기화 방법이 사용된다. IEEE에서 제정한 802.11a/g/n의 무선랜 표준은 OFDM 시스템을 기반으로 한다. OFDM 시스템은 주파수와 타이밍 동기화 에러에 대해서 싱클캐리어 시스템보다 더 민감한 것으로 알려져 있다. 프레임의 시작점과 OFDM 심볼 및 훈련심볼의 시작점은 상관관계를 이용하여 추정될 수 있다. 상관관계를 처리 기능을 하는 블록은 일반적으로 많은 수의 곱셈기로 인하여 큰 복잡도를 갖게 된다. 본 논문에서는 IEEE 802.11a/g/n 시스템을 위한 훈련심볼 내의 심볼값이 반복되는 특성을 활용한 복잡도가 현저히 낮은 동기화 기법을 제안한다. 시뮬레이션과 구현결과 제안된 기법이 기존의 방법보다 성능저하는 없는 반면 훨씬 적은 복잡도를 갖는 결과를 보여준다.