• Journal of Microbiology and Biotechnology
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• 제28권10호
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• pp.1581-1588
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• 2018

The growth of lactic acid bacteria (LAB) generates a high number of metabolites related to aromas and flavors in fermented dairy foods. These microbial proteases are involved in protein hydrolysis that produces necessary peptides for their growth and releases different molecules of interest, like bioactive peptides, during their activity. Each genus in particular has its own proteolytic system to hydrolyze the necessary proteins to meet its requirements. This review aims to highlight the differences between the proteolytic systems of Streptococcus thermophilus and other lactic acid bacteria (Lactococcus and Lactobacillus) since they are microorganisms that are frequently used in combination with other LAB in the elaboration of fermented dairy products. Based on genetic studies and in vitro and in vivo tests, the proteolytic system of Streptococcus thermophilus has been divided into three parts: 1) a serine proteinase linked to the cellular wall that is activated in the absence of glutamine and methionine; 2) the transport of peptides and oligopeptides, which are integrated in both the Dpp system and the Ami system, respectively; according to this, it is worth mentioning that the Ami system is able to transport peptides with up to 23 amino acids while the Opp system of Lactococcus or Lactobacillus transports chains with less than 13 amino acids; and finally, 3) peptide hydrolysis by intracellular peptidases, including a group of three exclusive of S. thermophilus capable of releasing either aromatic amino acids or peptides with aromatic amino acids.

• 영재교육연구
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• 제18권1호
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• pp.139-165
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• 2008

본 연구는 과학영재들을 위한 지구과학 영역 해파 실험 모듈을 개발하고 그 활용가능성에 대해 알아보고자 하였다. 과학영재들을 위한 해파 실험 모듈은 참여, 탐색, 설명, 정교화 및 확장 등 5단계로 구성된 특징을 가지고 있다. 실험 모듈의 교육적 효과를 알아보기 위하여 대전광역시교육청 지정 영재교육원 교육생으로 고등학교 10학년에 재학 중인 16명의 영재들을 대상으로 연구를 수행하였다. 수업 중의 연구보고서를 바탕으로 과학탐구능력과 사전 사후 검사에 의한 지식성취토의 변화를 분석하였다. 그 결과 변인 통제, 실험 설계, 실험과정 중의 도구의 선택과 활용 측면에서 효과적인 것으로 나타났으며, 지식 성취도에 있어서도 효과적인 것으로 나타났다. 본 연구의 결과로부터 과학영재를 위한 실험 모듈의 활용은 과학성을 기르기에 매우 유의미하며, 과학영재들의 적합한 다양한 실험모듈의 개발과 활용이 필요하다고 하겠다.

• 한국초등수학교육학회지
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• 제18권1호
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• pp.83-103
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• 2014

본 연구에서는 Leikin(2009)의 모델을 적용하여 수학적 창의성을 분석함으로써 Leikin의 모델이 갖는 한계점을 찾고 이를 통해 효과적인 수학적 창의성 측정 방법을 모색하고자 하였다. 이를 위하여 '과정 개방형 문제'와 '결과 개방형 문제'의 두 가지로 나누어 초등 수준에 적합한 개방형 문제를 마련한 후, 초등 5학년 영재 학생과의 면담을 통해 자료를 수집하고, 이를 분석하였다. 분석 결과, Leikin의 모델이 갖는 몇 가지 한계점을 찾을 수 있었다. 첫째, 한 학생의 동일한 풀이도 상이한 평가 순서에 따라 수학적 창의성 점수가 다르게 나올 가능성이 있었다. 둘째, 학생이 제시한 방법의 수가 많으면 많을수록 독창성이나 융통성보다 유창성이 전체 창의성 점수에 미치는 영향이 컸다. 셋째, Leikin의 모델을 통해서는 아이디어의 유용성과 정교성을 평가하기가 어려웠다. 넷째, Leikin의 모델은 과제 의존적이며 채점자마다 점수가 다르게 부여될 수 있다는 점에서 보편적으로 적용되기 위해서는 보완이 필요했다.

• 패션비즈니스
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• 제2권4호
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• pp.102-111
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• 1998

The purpose of this study is to present the basic material for the competitive, high-quality products by analyzing employees' attitude toward their job and some factors which influence the enhancement of productivity, education of workers, and facilities. This project was mainly conducted the conditions of women's wear manufacturing industries in Taegu by interviewing 143 employees in the sewing department. The result of this dissertation can be summarized as follows; 1. When it comes to the division of task in the sewing department, one team is composed of chairpersons (33.5%), assistant members (27.4%) and sub-assistant members (26.6%). The inspection of commodities as well as the enhancement of work on ironing for elaboration was divided as completion (12.6%) and finally the forms of task were made up of design sampling team (49%) and contracting team (51%). 2. Among the needle workers, as many as 60% employees had received technical education, which was by means of being passed down from the predecessors (81.6%). In terms of the period of education, from 2 to 5 years topped the list. The contents of education comprise patterning, sewing (65.2%) and ironing (20.3%). 3. The department of design takes charge of the report on working directions up to 88.2% and the working directions were used by 69.9 % of technicians. The directors of working conditions and methods were chiefs of designing department (37.7%) and those of sewing department (30.8%). The factors of defective goods were low-quality materials (50.0%), the deficiency in skills of workers. In terms of methods for preventing defects, technical education of workers, standardization of task and investment for factory automation were suggested. 4. As for their perception of present work, most of employees (80%) look upon it as a way of earning a living and 11% of them wanted to derive many things from their work. 59.2% of workers were satisfied with the product. When it comes to the incentive system provided by company, 67.0% responsed that it was not bad, and 23.9% evaluated it as 'satisfactory'.

• 한국산학기술학회논문지
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• 제5권6호
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• pp.504-510
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• 2004

본 논문은 필드 워핑과 모핑을 위한 pseudomedian 필터 기반 영상 보간법을 제안하고 주관적인 화질을 분석?평가함에 그 목적이 있다. 필드 워핑은 상대적으로 많은 연산량을 요구하는 것에 반해 제어선을 이용하여 좀 더 세밀하게 워핑 결과를 제어할 수 있는 것이 장점이다. 필드 영상 워핑 및 모핑의 동작 특성상, 국부적인 영상 확대와 축소 및 회전 등과 같은 다양한 기하학적인 변형이 복합적으로 발생하게 되는데 역방향 매핑 과정에서 소스 영상과 목적 영상의 화소가 정수 화소 단위로 대응되지 않을 경우, 목적 영상에 대응시킬 화소값을 산출하기 위해 적합한 영상 보간 기술이 필요하다. 다양한 보간 기술들 중에서 평균적으로 우수한 결과를 제공하는 양선형 보간이 보편적으로 사용되고 있으나, 이 보간 기술은 대각선 방향의 윤곽선 재현에 한계를 가지고 있다. 제안된 보간 방법은 양선형 보간과 윤곽선 재현에 우수한 특성을 보이는 pseudomedian 필터 보간를 효과적으로 결합한 것이다. 제안된 방법에 따르면 다른 보간 기법에 비해 상대적으로 자연스러운 워핑 및 모핑 결과를 얻을 수 있다.

• 한국콘텐츠학회논문지
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• 제13권10호
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• pp.92-102
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• 2013

지속적으로 진화하고 있는 휴대용 모바일기기는 오늘날, 사전 상에서 정의되는 커뮤니케이션의 기능을 넘어 엔터테인먼트의 기능 및 인포메이션의 기능까지 그 기능이 매우 방대해 졌다. 특히 한국은 새로운 기술을 보다 적극적인 자세로 받아들이는 성향을 보이고 있음에 따라 모바일기기의 내부 기능과 외부 디자인으로 구분되어지는 3세대 피쳐폰과 4세대 스마트폰의 사용행태를 비교 탐구해볼 시점이다. 본 연구는 오늘날의 모바일기기가 다양한 사용목적을 위한 매체로 활용됨에 따라 사용행태에 영향을 미치는 요인과 매체를 어떻게 활용하는지를 매체 풍요도 이론과 정교화가능성 모델의 관점에서 설명하였으며 연구방법으로 적용한 사례연구방법론은 20대 전반 대학생들 가운데 만 20세~24세 사이의 여학생을 중심으로 조사대상자 그룹을 선정하여 모바일 기기 세대별 사용 행태 변화를 감지하였다. 세대별 진화에 따른 모바일 기기 사용 행태는 보다 오프라인의 실생활 방식 및 인간관계와 유사해지며, 사용 행태의 변화양상은 앞으로 개발될 개인 휴대용 모바일 기기의 발전 방향이 모든 영역에 있어 보다 현실 속 모습과 같은 정서적 연대를 위한 사용자를 닮은 휴머니티가 강조된 모습으로 이루어질 것이라 추측된다.

• 대한지구과학교육학회지
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• 제5권1호
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• pp.60-67
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• 2012

The purpose of this study is to find out the effect of hypothesis formulations using abduction on science processing skills and the creative thinking activities. As the subject, 2 classes in the $6^{th}$ grade of B elementary school located in Busan were selected. Through the pre/post inspection design between experiment and comparison class, the units of science courses in the second semester of $6^{th}$ grade '1. A change in the weather' and '2. Various gases' were applied. The results were as follows: Firstly, the test on science processing skills showed that there was not statistic meaningful differences between the two groups. And, in the sub-parts, there was not statistic meaningful differences between the two groups. Secondly, it was observed that it would have a meaningful effect to improve the creative thinking activities of students who performed hypothesis formulation using abduction. Especially, through this, the experimental class gave a positive effect on the 'Fluency' and 'Elaboration', one of lower categories of the creative activities. The results of 'Flexibility' and 'Originality' in the experimental class were higher than those of students in the comparative class. However, according to statistical analysis, this result is meaningless. Thirdly, on the survey about the hypothesis formulation using abduction, many students thought that this learning method was very interesting and helpful to study science. In addition, it was observed that the ability to use abduct thinking was improved more than ever before.

• 한국콘텐츠학회논문지
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• 제14권9호
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• pp.400-410
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• 2014

본 연구는 간호대학생의 성격유형별 기질과 학습유형 및 학습전략을 파악하고자 시도된 서술적 조사연구이다. 연구 대상자는 간호대학생 245명을 대상으로 MBTI 성격유형 검사지와 학습유형에 관한 42개 문항, 학습전략에 관한 25개 문항의 구조화된 설문지를 이용하여 의견일치에 따라 1점~6점까지 선택하여 작성하도록 하였다. 연구결과 대상자의 가장 많은 성격유형은 ESFJ(외향성 감정형)이었으며, 성격유형별 기질로는 SJ(감각적 판단형)기질이 가장 많은 분포를 나타냈다. 성격유형별 기질에 따른 학습유형의 차이를 분석한 결과, 4가지 성격유형별 기질은 표층형(F=2.981, p=.032), 심층형(F=5.542, p=.001) 및 성취형(F=3.863, p=.010) 모두에서 유의한 차이를 보였으며, 성격유형별 기질에 따른 학습전략의 차이에서는 시연(F=5.454, p=.001), 정교화(F=9.693, p=.001), 조직화(F=7.898, p=.001), 상위인지(F=3.924, p=.009)에서 유의하였다. 본 연구에서 나타난 간호대학생의 성격유형별 기질과 학습유형 및 학습전략의 결과를 바탕으로 개인에게 적합한 학습법의 개발 및 적용이 필요할 것이다.

• 수산해양교육연구
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• 제28권4호
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• pp.1133-1142
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• 2016

The purpose of this study was to verify the effects of science classes using abductive strategies on the scientific concept understanding and meta-cognition. The subjects included two classes of sixth graders from K Elementary School in B Metropolitan City and they divided into two groups. Research group was composed of 21 students(10 boys, 11 girls) and comparative group was composed of 21 students(11 boys, 10 girls). In order to achieve aims of this study, proper contents to apply abductive strategies were selected from the first semester science curriculum for sixth graders. Also five-steps study papers were designed to elicit abductive reasoning. While the research group received 20 times of reframed science lessons using abductive strategies, the comparative group received common science lessons according to the teachers' manual. The results of this study are as follows. First, science classes using abductive strategies were effective for the scientific concept understanding. Also there were statistically significant differences between the research group and the comparative group in overall science sub-domain. In the process of hypothesis formulating, students tried to find out scientific causes thoroughly to present the optimal explanation and they concentrated on the analysis of each scientific concept. It is thought that this process contributed to better understanding in scientific concepts. Second, science classes using abductive strategies were effective for improving meta-cognition. There were statistically significant differences between the two groups and especially in monitoring that is one of sub-factors of meta-cognition. It indicates that hypothesis formulating process gave positive effect on meta-cognition by stimulating critical thinking and manifesting elaboration.

• 건축역사연구
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• 제8권1호
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• pp.81-94
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• 1999

This Study aims at searching the meanings in the creative process of Ronchamp chapel by analyzing the drawings of the site, plan, section and elevation in chronological order. The origins of his architectural creation are identifying with the site(memories of Acropolis), analogies of crab shell, air plane wing and hydraulic dams. The architect informed himself about the site ,the tradition of pilgrimage associated with the place, and its devotion to the Holy Virgin; he looked into the rituals of the Catholic religion, spoke with ecclesiastics; he studied and annotated a monograph devoted to the site of Ronchamp. Also ,the plan required that it be possible to collect rainwater, since such was rare on the hill. In the first design phase, overall conception of building was carried out in the sketches and drawings from June 1950 to November 1950. The second phase in the elaboration of the project was from January 1951(at which time preliminary project was presented to the Commission of Holy Art) to April 1953. The modifications made were in response to opinions expressed by the patrons. The building moved to east and gargoyle moved to west, then, the elevations of north and west were changed. He designed the artificial land and bell tower from the first phase even after the beginning of construction ,he wanted them to be built .But they were not constructed, so the outer space for rituals of religion had no tension. I concluded that Le Corbusier had gifted ability and efforts to create spontaneous birth(after incubation) of the whole work, and the execution of drawings itself. He devoted himself to accomplish the project in spite of the change in situation or by clients.