• International Journal of Advanced Culture Technology
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• 제11권2호
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• pp.56-63
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• 2023

I proposed the architectural guideline for educational environment based on design thinking approach to integrate and enhance learners' activities and achievements. The physical environment of design education learning space should be applied by teaching methods and learning activities, especially for STEAM-based convergent education, the architectural space conditions should support the design process based on design thinking. The learning environment conditions influence design education with physical design factors and learners' communication, and the flexible environment based on design thinking, which is crucial for design education. The 3 steps of design thinking experiences also allow students to learn the context of ideas, skills and outcomes. Therefore, I argued that the learning surrounding based on design thinking needs flexible and mobile, connected, integrated, organized, and team-focused environments to support learners' understanding, participation, and collaboration, and to achieve the design process based on research findings. For spaces for convergent learning environments based on design thinking, common design principles should be reviewed, such as coexistence with technology, safety and security, transparency and spatial extension, multi-purpose space and outdoor learning.

• 디지털융복합연구
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• 제16권8호
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• pp.221-231
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• 2018

본 연구는 간호대학생을 대상으로 개발한 문제중심학습 연계 시뮬레이션교육을 적용한 후 학생의 시스템 사고능력, 학습몰입, 문제해결 적극성 및 투약간호 수행능력에 미치는 효과를 검증한 비동등성 대조군 전후설계의 유사실험연구이다. 연구대상은 전북과 경인지역에 소재한 간호대학생으로 실험군 37명, 대조군 41명이었고, 실험군에게는 문제중심학습 연계 시뮬레이션 교육프로그램, 대조군에게는 시뮬레이션 교육프로그램을 적용하였다. 자료수집은 프로그램을 적용하기 전과 후에 측정하였고, SPSS WIN Version 22.0 프로그램을 이용하여 분석하였다. 연구 결과, 실험군이 대조군에 비해 시스템 사고능력(t=2.14, p=.036), 문제해결 적극성(t=2.07, p=.042) 및 투약간호수행능력(t=5.26, p=<.001)은 유의하게 향상되었으나 학습몰입은 통계적으로 유의하지 않았다. 따라서 간호대학생의 임상상황에서의 적응을 위하여 교수자들은 문제중심학습 연계 시뮬레이션 교육을 교과과정에 적용하는 것을 고려할 필요가 있다.

• 한국문헌정보학회지
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• 제44권2호
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• pp.29-50
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• 2010

본 연구는 미국 켄터키 주에 소재한 머레이 주립대(Murray State University)가 제공하고 있는 주제별 맞춤형 정보제공(Library on Blackboard) 시스템의 기능들을 중심으로 현존하는 대학도서관 서비스가 온라인상에서 어떠한 정보기술을 통해 변형되어 제공될 수 있는지를 살펴보았다. 정보기술의 발달로 인하여 미국 대학교육에서 온라인 강의와 원거리 교육의 비중이 점점 늘어나는 추세이다. LMS(Learning Management System)는 새로운 대학 환경변화의 중요한 도구이다. 대학도서관의 정보제공 기능도 대학교육 환경의 변화에 발맞추어 발전해 왔고, 이에 따라 이용자에게 효과적인 서비스를 제공하기 위한 LMS와 연계한 맞춤형 정보검색 시스템을 개발하기에 이르렀다. LMS와 연계한 도서관 서비스는 학생들의 연구형 과제해결을 위한 정보수집에 적합한 검색시스템과 유용한 정보들을 한곳에 모은 가상 분관의 기능을 제공하기에 더욱 사용되고 발전해야 한다. 이 시스템을 더욱 발전시키기 위해서는 Contents Management Systems의 사용과 과목별 접근방식으로 변환이 중요하다.

• Korean Journal of Acupuncture
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• 제33권3호
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• pp.102-113
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• 2016

Objectives : This study is aimed at developing and discussing the prediction model of blood stasis pattern of traditional Korean medicine(TKM) using machine learning algorithms: multiple logistic regression and decision tree model. Methods : First, we reviewed the blood stasis(BS) questionnaires of Korean, Chinese, and Japanese version to make a integrated BS questionnaire of patient-reported outcomes. Through a human subject research, patients-reported BS symptoms data were acquired. Next, experts decisions of 5 Korean medicine doctor were also acquired, and supervised learning models were developed using multiple logistic regression and decision tree. Results : Integrated BS questionnaire with 24 items was developed. Multiple logistic regression models with accuracy of 0.92(male) and 0.95(female) validated by 10-folds cross-validation were constructed. By decision tree modeling methods, male model with 8 decision node and female model with 6 decision node were made. In the both models, symptoms of 'recent physical trauma', 'chest pain', 'numbness', and 'menstrual disorder(female only)' were considered as important factors. Conclusions : Because machine learning, especially supervised learning, can reveal and suggest important or essential factors among the very various symptoms making up a pattern identification, it can be a very useful tool in researching diagnostics of TKM. With a proper patient-reported outcomes or well-structured database, it can also be applied to a pre-screening solutions of healthcare system in Mibyoung stage.

• 한국콘텐츠학회논문지
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• 제14권5호
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• pp.480-486
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• 2014

본 연구는 영자 신문 발간 활동이 영어 의사소통 능력 향상에 미치는 긍정적인 영향을 확인하며 프로젝트 기반의 출판 과정을 통한 독립적이면서도 협동적인 학습 환경의 구현가능성을 탐색한다. 한국과학영재학교의 첫 번째 영자 신문 발간 기획은 프로젝트 기반의 교수학습 방법을 적용한 일련의 단계를 거쳐서 완성되었다. 영어 능력과 참여도에 따른 학생 편집자 선발 과정을 시작으로 분야와 주제 및 제재를 선택하고 역할과 기사를 배분하며 결과물을 통합 편집하는 과정을 거친다. 전 과정에 걸쳐 참여자들은 최소한의 지도 감독 아래서 독립적이면서도 협력적으로 활동에 참여하였다. 사후 설문조사에 따르면 성공적인 영자신문의 발간이 전반적 영어 능력을 향상 시켰을 뿐만 아니라 긍정적인 학습자 자아인식과 주도적인 학습 태도를 키웠다고 나타났다. 본 연구는 언어 교육 뿐 아니라 통합적인 프로젝트 기반 교수 학습에 있어 신문 잡지 등의 출판 활동이 주는 장점을 논하는 한편, 향후 프로젝트 교수 학습 방법과 영어 의사소통능력 향상과 관련된 보다 심화된 연구가능성을 제시한다.

• 정보교육학회논문지
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• 제23권5호
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• pp.481-489
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• 2019

방송고 학습자의 배경 변인별 학습 현황과 학습 태도에 따라 형성평가 결과가 차이가 있는지를 탐색하고자 2018년 1학기동안 방송고 사이버교육시스템을 통해 영어, 수학, 통합사회, 통합과학을 학습한 1학년 2,965명의 로그데이터를 분석하였다. 학습자의 성별, 연령, 소속 학교의 지역에 따라 학습 현황을 살펴보았으며 차시당 학습 횟수, 진도율, 학습 기간, 학습 시작 월, 차시별 형성평가 성적 등을 분석하였다. 또한 학습 성실도를 파악하기 위해 차시별 학습 빈도를 포함하여 왜도와 첨도를 구하여 성실한 학습 태도가 학업 성취에 미치는 영향을 검증하였다. 그 결과, 차시당 평균 학습 횟수, 학습 기간, 진도율, 성적 등 거의 모든 분야에서 여성이 남성보다 높게 나타났고 연령별로는 대체로 나이가 많은 수록 높게 나타났다. 지역별로는 서울 지역이 다른 지역보다 높게 나타났다. 방송고 학습자들의 평균 학습 기간은 2~3개월인 것으로 나타났고 학습 기간이 길수록 형성평가 성적도 높은 것으로 나타났다. 마지막으로 특정 시기에 집중하여 학습하는 학습자보다 학습 횟수가 짧더라도 꾸준히 학습하는 학습자들의 형성평가 점수가 높은 것으로 나타났다.

• 한국문헌정보학회지
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• 제26권
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• pp.53-74
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• 1994

Creative thinking in education is a common assumption to be accomplish in this information age. Information education can contribute to build the ability to think creatively. The Author explored how information education conduces the creative thinking ability that is necessary to the development of independent and competent study for students themselves. The writer also expressed the integrated education makes students think synthetically and synthetic educational experience derives creative thinking. She based her arguments upon the theory of the psychology of memory and the Piaget's cognitive structure. To increase the effects of information education, it is necessary to integrate the curriculums and learning method of the information education and those of other areas of learning, i,e., languages, literatures, social sciences, sciences, mathematics, etc. Here, author asserted that the teaching of information skill within classroom curriculums for all subject areas can make the integrated effects on various classroom curriculums. On the basis of the findings of this study, the author recommended that every school needs to prepare enough books and other media for the students to drill information skill. Consequently, to build creative thinking ability for He students, librarians, classroom teachers and school principals who have influence on the information education, have to cooperate to initiate integrated information education for the student.

• 한국정밀공학회지
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• 제11권4호
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• pp.138-147
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• 1994

Performance management of computer networks is intended to improve a given network performance in order for more efficient information exchange between subsystems of an integrated large-scale system. Improtance of performance management is growing as many function of the large- scale system depend on the quality of communication services provided by the network. The role of performance management is to manipulate the adjustable protocol parameters on line so that the network can adapt itself to a dynamic environment. This can be divided into two subtasks : performance evaluation to find how changes in protocol parameters affect the network performance and decision making to detemine the magnitude and direction of parameter adjustment. This paper is the second part of the two papers focusing on conceptual design, development, and evaluation of performance management for token bus networks. This paper specifically deals with the task of decision making which utilizes the principles of stochastic optimization and learning automata. The developed algorithm can adjuxt four timer settings of a token bus protocol based on the result of performance evaluation. The overall performance management has been evaluated for its efficacy on a network testbed.

• Journal of Microbiology and Biotechnology
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• 제32권5호
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• pp.657-662
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• 2022

Glycosyltransferase (GT)-specific degenerate PCR screening followed by in silico sequence analyses of the target clone was used to isolate a member of family1 GT-encoding genes from the established fosmid libraries of soil actinomycetes Micromonospora echinospora ATCC 27932. A recombinant MeUGT1 was heterologously expressed as a His-tagged protein in E. coli, and its enzymatic reaction with semi-synthetic phenoxodiol isoflavene (as a glycosyl acceptor) and uridine diphosphate-glucose (as a glycosyl donor) created two different glycol-attached products, thus revealing that MeUGT1 functions as an isoflavonoid glycosyltransferase with regional flexibility. Chromatographic separation of product glycosides followed by the instrumental analyses, clearly confirmed these previously unprecedented glycosides as phenoxodiol-4'-α-O-glucoside and phenoxodiol-7-α-O-glucoside, respectively. The antioxidant activities of the above glycosides are almost the same as that of parental phenoxodiol, whereas their anti-proliferative activities are all superior to that of cisplatin (the most common platinum chemotherapy drug) against two human carcinoma cells, ovarian SKOV-3 and prostate DU-145. In addition, they are more water-soluble than their parental aglycone, as well as remaining intractable to the simulated in vitro digestion test, hence demonstrating the pharmacological potential for the enhanced bio-accessibility of phenoxodiol glycosides. This is the first report on the microbial enzymatic biosynthesis of phenoxodiol glucosides.

• Geomechanics and Engineering
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• 제38권1호
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• pp.69-77
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• 2024

The development of shield-driven cross-river tunnels in China is witnessing a notable shift towards larger diameters, longer distances, and higher water pressures due to the more complex excavation environment. Complex geological formations, such as fault and karst cavities, pose significant construction risks. Real-time adjustment of shield tunneling parameters based on parameter prediction is the key to ensuring the safety and efficiency of shield tunneling. In this study, prediction models for the torque and thrust of the cutter plate of ultra-large diameter slurry shield TBMs is established based on integrated learning algorithms, by analyzing the real data of Heyan Road cross-river tunnel. The influence of geological complexities at the excavation face, substantial burial depth, and high water level on the slurry shield tunneling parameters are considered in the models. The results reveal that the predictive models established by applying Random Forest and AdaBoost algorithms exhibit strong agreement with actual data, which indicates that the good adaptability and predictive accuracy of these two models. The models proposed in this study can be applied in the real-time prediction and adaptive adjustment of the tunneling parameters for shield tunneling under complex geological conditions.