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오영열,강동수,김해섭,김경은,최옥수,배태진 여수대학교 산업기술지역개발연구소 2000 産業基術硏究所 論文集 Vol.9 No.-
Conditions for processing dried condiments with bloody clam were investigated. The enzymatic hydrolysis for 1 hour was more profitable than hydrothermal extraction to develop flavoring matters from bloody clam. As a result of omission tests, nucleotides were predominated in the taste compounds of bloody clam hydrolysates rather than free amino acids, and the contribution of nucleotides and free amino acids to the taste of bloody clam hydrolysates was remarkable. The major flavoring components of bloody clam hydrolysates were free amino acids and oligopeptides below 500 dalton. When bloody clam hydrolysates were separated with membrane(molecular weight cutoff 500 dalton) for recovering flavor, recovering yields of amino type nitrogen were 92.4%. Proximate compositions of dried condiments prepared with protease hydrolyzed bloody clam were moisture content 3.6%, total nitrogen were 71.2% amino nitrogen were 47.8%. And drying yield, solubility and absorption rates at Aw 0.88 were 21.4%. 86.3% and 6.6%, respectively.
실업계 고등학생의 직업기초능력 향상을 위한 문제중심학습(PBL)의 효과
박동열,이성덕,김종오,조경희,강경심,박윤희,김대영 한국농업교육학회 2006 농업교육과 인적자원개발 Vol.38 No.4
21세기 지식기반사회는 전문지식뿐만 아니라 효율적인 직무 수행에 필요한 의사소통능력, 문제해결능력, 자기관리능력 및 직업의식 등의 직업기초능력이 강조되고 있다. 직업기초능력은 생의 어느 한 시기에 갑자기 이루어지거나 완성되는 l회적인 것이 아니라 개인의 생애단계에 따라 변화하고 발달하는 것이며 취업자뿐만 아니라 진학자에게도 잠재적으로 매우 중요한 요소이므로 실업계 고등학생의 직업기초능력 향상은 중요한 현안이라 할 수 있다. 이 연구는 여러 교수학습유형 중 실업계 고등학생의 직업기초능력 향상에 타당하리라 사료되는 문제 중심학습 모형(Problem-based learning model)을 선정, 이에 기초한 전문교과 수업을 실시하여 실업계 고등학생의 직업기초능력 향상에 기여할 수 있는지 실증적으로 분석하고자 하였다. 연구 목적 달성을 위해 「대학생의 직업기초능력 유형 검사도구(박동열, 2005)」를 실업계 고등학교 전문가 협의회를 통해 수정ㆍ보완, 이를 활용하여 실업계 고등학생의 직업기초능력을 파악하고, 문제중심학습 모형에 따른 실제 전문교과 수업을 통한 실업계 고등학생의 직업기초능력 향상 정도를 알아보기 위하여 농업계열, 공업계열, 상업계열, 가사ㆍ실업계열 4명의 현직 교사가 문제중심학습 수업 매뉴얼에 따라 실제 수업에 적용 하고 그 결과를 분석하였다. 연구 결과 문제중심학습 모형이 실업계 고등학생의 수업만족도에 긍정적인 영향을 끼쳤으며, 문제중심학습 모형에 따른 전문교과 수업을 통해 실업계 고등학생의 모든 영역의 직업기초능력(문제해결 및 발표 능력, 기술활용능력, 자원활용능력, 수리능력, 조직이해능력, 대인관계능력, 자기관리능력)이 향상되었음을 실증적으로 알 수 있었다. The purpose of this research was to analyze the fitness of problem-based learning(PBL) for improving the core competencies of vocational high school students. This study examined the core competencies of vocational high school students by using the advised BARS test for vocational high school. And in order to examine the effectiveness of the courses based on PBL, 4 teachers had taught the designed courses by PBL method during the regular class in vocational high school : agricultural; technical; commercial, home economic high schools. The major findings in this study were as follows: 1) The courses based on PBL had an positive effect on the class satisfaction of vocational High school students. 2) We found out that the courses based on PBL have a positive effect on improving vocational key competencies of Vocational High school students.
宋東勳,裵振勝,鄭燦赫,吳世德,李基源,劉忠烈,河載承,李光培,金玄郁 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-
With rapid growth of the internet, need for the mobile communication networks is increasing. In this paper, we implement and test Mobile IP Protocol in Embedded System. Our Mobile IP-based testbed consisted of two sub-networks and each sub-network was configured to operate independently through use of router. To satisfy integrated wired/wireless network model established on the testbed design and show generality of the testbed, we implemented mobile nodes, home agent, foreign agent and router on the basis of Linux operating system. As the results of the evaluation, we confirmed that mobile nodes operated properly according to Mobile IP Protocol.
유영태,김재열,노경보,양동조,오용석,임기건,김지환 한국공작기계학회 2003 한국생산제조학회지 Vol.12 No.6
With the increased use of lasers in industrial welding applications, techniques for monitoring and controlling these processes become increasingly important. It is very important that we understand the dynamic behaviors of the laser induced plume in welding because the laser induced plume has considerable effects on welding efficiency and the quality of materials. As the plume fluctuation was associated with keyhole instability, unstable vapor plume indicated the process was unstable and would result in poor welds. An Infrared Themal-vision Camera can be utilized compensate for incurracies encountered in real-time monitoring during laser welding. We have results that instabilities of plume are closely dated with hot cracking and defect of laser welding.