• 산업공학
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• 제23권3호
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• pp.205-212
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• 2010

The learning curve model is a mathematical form which represents the relationship between the manufacturing experience and its effectiveness. The semiconductor manufacturing is widely known as an appropriate example for the learning effect due to its complicated manufacturing processes. In this paper, I propose a new compound learning curve model for semiconductor products in which the general learning curve model and the growth curve are composed. The dependent variable and the effective independent variables of the model were abstracted from the existing learning curve models and selected according to multiple regression processes. The simulation results using the historical DRAM data show that the proposed compound learning curve model is one of adequate models for describing learning effect of semiconductor products.

• 한국IT서비스학회지
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• 제18권5호
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• pp.71-83
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• 2019

This study aimed to develop and pilot-test educational program prototypes of training health coaches to help cancer patients overcome crises and create positive growth. For this purpose, the educational contents and methods of the blended learning program prototypes were derived through learner needs and literature analysis. The prototypes, which consist of introducing of health management and health information and understanding and practice of basic coaching and health coaching, were developed to integrate with four sessions of face-to-face, off-line classes, training practices through 12 tele-classes, and use of online learning system. The prototypes were conducted and pilot-tested by a total of 35 students selected through the document screening and the interview. After participating in the blended learning program, learners expressed greater overall satisfaction with each session program (average score = 4.36, with 5 being most satisfied), satisfaction with learning contents (average score=4.42) satisfaction with course preparation (average score = 4.26) and satisfaction with lecture materials (average score = 4.19). The results of this study show that a systematic and integrative approach for designing a blended learning program can be useful for various educational needs in health and medical fields. In the future, empirical studies are expected to see how these curricula are actually implemented and assess whether the intended learning outcomes are achieved.

• International Journal of Contents
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• 제8권1호
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• pp.10-15
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• 2012

Since MegaStudy started e-learning business for Korean high school students, the Korean e-learning industry began to expand and steadily gain attention. This paper focused on the analysis of the development of the Korean e-learning business for teens and the growth of MegaStudy. The three institutional mechanisms were used to examine the factors that aided the development of the business. The regulatory mechanism was the government policy to prevent the expansion of the offline private education sector, which greatly aided the growth of the e-learning business. The mimetic mechanism was the notion to mimic the characteristics of the Korean e-business initiatives. The normative mechanism involved the widespread social norm suggesting that every student should be given an equal opportunity of private education. This paper also examined the case of MegaStudy as a successful case of the e-learning companies. It analyzed the business model of MegaStudy, which is based on its advantage as the front-runner and its high-quality contents and services.

• 동의생리병리학회지
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• 제19권2호
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• pp.434-440
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• 2005

This study was conducted to find out the effect of Bojungikgitanggamibang(BIT) on growth, learning and memory of rats. The effects of BIT on learning and memory performance were examined in normal or memory impaired mice by using water maze task. Memory was impaired by 192 saporin. Body weight and growth of bone and tail of sample group were not significant compared with those of control groups. Acquisition test of water maze revealed that acqusitive ability of sample group significantly improved on 4,5th day compared with control group, while retentive ability of sample group was not significant. ChAT cell numbers of medial septum of sample group was significant compared with control group, and so was those of CA1, CA2 parts of hippocampus. On ChAT cell numbers of hippocampus, in CA2 part. These results suggest that BIT has an improving effect on the impaired learning through the effects on memory registration and retrieval.

• 스마트미디어저널
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• 제11권7호
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• pp.94-103
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• 2022

Weeds bring disadvantages to crops since they can damage them, and a clean treatment with less pollution and contamination should be developed. Artificial intelligence gives new hope to agriculture to achieve smart farming. This study delivers an automated weeds growth point detection using deep learning. This study proposes a combination of semantic graphics for generating data annotation and U-Net with pre-trained deep learning as a backbone for locating the growth point of the weeds on the given field scene. The dataset was collected from an actual field. We measured the intersection over union, f1-score, precision, and recall to evaluate our method. Moreover, Mobilenet V2 was chosen as the backbone and compared with Resnet 34. The results showed that the proposed method was accurate enough to detect the growth point and handle the brightness variation. The best performance was achieved by Mobilenet V2 as a backbone with IoU 96.81%, precision 97.77%, recall 98.97%, and f1-score 97.30%.

• 한국해양공학회지
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• 제10권1호
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• pp.65-74
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• 1996

Up to now, the existing crack growth modelling has used a mathematical approximation but an assumed function have a great influence on this method. Especially, crack growth behavior that shows very strong nonlinearity needed complicated function which has difficulty in setting parameter of it. The main characteristics of neural network modelling to engineering field are simple calculations and absence of assumed function. In this paper, after discussing learning and generalization of neural networks, we performed crack growth modelling on the basis of above learning algorithms. J'-da/dt relation predicted by neural networks shows that test condition with unlearned data is simulated well within estimated mean error(5%).

• 한국지역사회생활과학회지
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• 제19권2호
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• pp.245-265
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• 2008

The Lifelong Learning City Project has made quantitative expansion as well as qualitative growth since 2001 but the project has been criticized by academic scholars and field practitioners. The Lifelong Learning City Project is a national policy project which has been promoted by the Ministry of Education and Human Resources Development and should be required to make production profits proportional to the amount of public finance. The Lifelong Learning City Project is a community development project intended to promote growth and progress by supporting the community in lifelong learning endeavors. Therefore, the community development theory could offer guidelines to the Lifelong Learning City Project. Based on this assumption, this study intends to investigate the Lifelong Learning City Project at the national, city, and county levels using the community development theory. The improvement methods of the Lifelong Learning City Project are role allotment between national and wide level projects supporting organizations, and the establishment of a system and a long term project policy. In addition, the project is to have a more systematic performance. It is to enhance opportunities for community members' participation, and practice in planning, performance of learning, and the proper performance in regard to the community conditions and specificity. The most important goal of the Lifelong Learning City Project is to support the empowerment of community members by making opportunity planning, practicing and sharing lifelong learning more accessible.

• 한국병원경영학회지
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• 제18권2호
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• pp.127-152
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• 2013

The purpose of this study was to investigate the effect of balancing, coordinating and learning strategy on performance of private university hospitals. We think that the study will contribute to establish effective management strategy of private university hospitals. Data were collected from 69 private university hospitals. We measured balancing, coordinating and learning strategy, and perceived performance of the hospital by using 5-point Likert scale. Upper-grade general hospitals were significantly higher rate of growth and profitability than others. However, general hospitals were higher level in perceived performance than upper-grade general hospitals. Hospitals located in Seoul were significantly higher growth rate than those in other regions. Large-scale hospitals were significantly higher rate of growth and profitability than small hospitals. Qualitative performance did not different in any hospital characteristics. Growth of hospitals were significantly influenced from business strategies: selective strategy, formal coordinating strategy, and external learning strategy. Profitability of hospitals were also significantly influenced from business strategies: selective strategy, adaptive strategy, and external learning strategy. Subjective performance of hospitals were significantly influenced from external learning strategy. There were no factors that are significantly influencing on qualitative performance of hospital. To have successful performance in the competitive environment, it is recommended that private university hospitals should have to establish management strategy such as balancing, coordinating, and learning strategy.

• 한국콘텐츠학회논문지
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• 제12권9호
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• pp.27-39
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• 2012

본 연구는 인문사회과학을 통합하는 간 학문적 실천적 녹색성장 융합 교육을 효과적으로 실시하기 위하여 u-프로젝트 교수 학습 모형을 개발 제시하는데 목적이 있다. 연구의 목적을 달성하기 위하여 교사, 예비교사, 중학생을 대상으로 녹색성장에 대한 인식수준 조사, 녹색성장 10대 정책방향과 중등/사범대학 교육과정 간 연관성 분석, 녹색성장 융합교육을 위한 교수 학습 내용요소를 추출하였다. 그리고 녹색성장 u-프로젝트 교수 학습의 핵심활동 요소와 절차를 구안한 후 중등학교 상황에 적용하기 용이하도록 교수 학습의 세부 진행모형을 개발하였다. 본 연구에서 개발된 모형을 통해 녹색성장의 필요성과 타당성에 대한 이해를 증진시키는 것과 동시에 인문사회과학을 통합하는 간 학문적 실천적 교육이 가능할 것으로 예상된다.

• 교육심리연구
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• 제32권1호
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• pp.183-205
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• 2018

학습자 중심 교수는 자기 주도적 학습 환경을 지원한다. 더 나아가 자기 주도적 학습 경험은 학습자로 하여금 자신의 노력으로 인해 본인의 성장과 성취가 이루어질 수 있다는 믿음을 가지게 한다. 이런 학습자의 믿음과 신념은 성취 경쟁에서 오는 불안감이나 스트레스를 완화하는 요인이 될 수 있다. 본 연구는 학습자 중심 교수, 학습동기, 성장신념, 학업스트레스 간의 구조적 관계를 증명하기 위한 목적을 가지고 있다. 특히 본 연구는 경기교육종단연구 3~5차 년도(초6~중2) 데이터를 사용하여 관련 변인들의 변화에 따른 구조적 영향에 주목하고자 진행되었다. 연구결과 먼저 학습자 중심 교수는 학습자의 내재적, 외재적 동기를 모두 긍정적으로 예언하였으나, 내재적 동기를 더 잘 예언하는 것으로 나타났다. 둘째, 학습자 중심 교수는 동기를 매개로 하여 학업스트레스에 영향을 미쳤다. 그러나 내재적 동기와 외재적 동기 모두 스트레스를 강화시키는 요인으로 나타났다. 셋째, 성장신념은 학습자 중심 교수와 동기를 매개하는 요인으로 작용하였다. 구체적으로 학습자 중심 교수는 학습자가 성장에 대한 긍정적 신념을 갖는데 영향을 미치며, 성장신념을 가진 학습자는 내재적 동기가 강화되는 것으로 나타났다. 이에 반하여 외재적 동기는 성장 가능성을 믿는 학습자일수록 낮아지는 경향이 있었다. 마지막으로 학습자 중심 교수에 대한 인식의 변화는 성장신념 변화를 매개로 하여 학업스트레스의 변화에 영향을 미치는 것으로 나타났다. 그러나 다른 3요인(학습자 중심 교수, 학습동기, 학업스트레스)은 변화에 따른 관계가 통계적으로 유의하지 않았다. 결론적으로 학습자 중심 교수는 학업스트레스를 완화할 수 있었으며, 이 관계가 기존에 연구되던 학습동기가 아닌 성장신념의 변화에 의해 영향을 받는 것임을 보여주었다. 이 결과는 학습자의 인식과 믿음이 내재적 동기 형성에 기여할 뿐만 아니라, 학습자의 학업스트레스 변화에 기여하는 주요요인임을 유추하게 하였다. 더 나아가 학습자가 긍정적인 인식을 가지는 방향으로 학습 환경을 개선하고 변화할 필요가 있음을 시사해주었다.