• 대한지구과학교육학회지
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• 제7권1호
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• pp.99-109
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• 2014

The purpose of this study was to obtain consensus from the expert community on the aims of Elementary Science Classes for the Gifted(ESCG) and teaching professionalism of Elementary Science Teachers for the Gifted(ESTG). For the delphi study, nineteen experts were consulted with open-ended and closed questions. Delphi research was conducted a total of 3 times. The Delphi survey was done by e-mail. The experts can express their opinions freely during the research. The results of this study were as follows : First, there were six aims for ESCG. The six aims of ESCG are scientific inquiry ability growth, creative problem solving ability growth, primary science gifted's giftedness development, the future science-talented-children training, the growth of attitudes toward science, scientific attitudes growth. Second, there were four teaching professionalism about teaching professionalism of ESTG. Four teaching professionalism are understanding the characteristics of primary science gifted, the ability to understand and apply the learning methods suitable for primary science gifted education, professional knowledge and ability to understand the science curriculum, the ability to develop and apply primary science education programs.

• 정보교육학회논문지
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• 제15권3호
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• pp.493-503
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• 2011

사이버대학 학생정원의 증원은 학생 규모에 따른 교육여건의 확보, 신입생 충원율 등을 감안하여 결정되는데 정원 관리를 위해 고려되는 항목들이 사이버대학의 특수성을 충분히 반영하지 못하고 있으며, 항목별 기준도 미약하여 증원에 대한 자율 통제, 학습권 보호, 교육의 질 담보를 제대로 수행하지 못하고 있다. 본 연구는 사이버대학 학생정원 관리 정책의 취약점을 보완하고 사이버대학의 특장점을 살려서 고등교육기관으로서의 교육의 질을 담보할 수 있는 학생정원 관리 방안을 제안하기 위하여 수행되었다. 본 연구를 통해 사이버대학의 현황 및 질 제고 요소 분석, 전문가 의견조사 등을 통하여 사이버대학 학생정원 관리모형을 도출하였다.

• International Journal of Computer Science & Network Security
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• 제21권12호
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• pp.269-279
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• 2021

In the current conditions of world socio-economic development, the strategic support of the process of managing the development of universities has become a particularly important area. Strategic management requires reliable information and analytical support in the form of sound descriptions of strategic directions of development, assumptions, and forecasts. The purpose of the study is to substantiate and elaborate the crucial causes in the strategic management of university's development and to suggest the coherent prospects for advancements. The data analysis was performed using descriptive methods to identify the most significant causes that affect the university's strategic development; the expert assessment was used to rank the factors, ultimately to assess each factor that affects to some extent the university's strategic development; the abstract-logical method was used to ground the positive impact of computer technologies and e-learning on the strategic development of a university and to formulate proposals for its further progress. The main results provided in the given paper showed that significant and most important strategic cause of university's development lies in the field of improving the quality of education, expanding access to educational services based on computer technology and its functionality. In turn, its widespread use at all stages of the educational process allows providing a number of advancements for universities in strategic prospects.

• Nuclear Engineering and Technology
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• 제56권9호
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• pp.3740-3749
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• 2024

To reduce the losses caused by aging failure of insulation gate bipolar transistor (IGBT), which is the core components of nuclear power plant rod position indicating and rod control (RPC) system. It is necessary to conduct studies on its life prediction. The selection of IGBT failure characteristic parameters in existing research relies heavily on failure principles and expert experience. Moreover, the analysis and learning of time-domain degradation data have not been fully conducted, resulting in low prediction efficiency as the monotonicity, time correlation, and poor anti-interference ability of extracted degradation features. This paper utilizes the advantages of the stacked denoising autoencoder(SDAE) network in adaptive feature extraction and denoising capabilities to perform adaptive feature extraction on IGBT time-domain degradation data; establishes a long-short-term memory (LSTM) prediction model, and optimizes the learning rate, number of nodes in the hidden layer, and number of hidden layers using the Gray Wolf Optimization (GWO) algorithm; conducts verification experiments on the IGBT accelerated aging dataset provided by NASA PCoE Research Center, and selects performance evaluation indicators to compare and analyze the prediction results of the SDAE-LSTM model, PSOLSTM model, and BP model. The results show that the SDAE-LSTM model can achieve more accurate and stable IGBT life prediction.

• 인지과학
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• 제9권1호
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• pp.31-39
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• 1998

본 논문은 HELPS라는 반도체 검사 장비를 위한 전자성능지원시스템(Electronic Performance Support System)에 대하여 기술한다. 본 시스템의 목적은 운영 지원, 훈련, 지식 기반 고장 진단 및 수리를 위한 just-in time. on-the-job 멀티미디어에 기반을 둔 정보를 제공함으로써 오퍼레이터의 생산성을 향상시키는데 있다. HELPS는 운영 모듈과 고장 진단 모듈로 구성되어 있다. 운영 모듈은 사용자에게 장비에 관한 자세하고 쉽게 접근이 가능한 정보를 제공하기 위하여 멀티미디어와 하이퍼미디어를 사용한다. 멀티미디어는 정지 화상, 동화상, 에니메이션, 텍스트, 그래픽, 오디오를 포함하는 다매체 형식을 통합한다. 하이 퍼미디어는 계층적인 정보 구조를 통하여 숙련된 오퍼레이터에게는 작업을 수행하는데 필요한 특정한 정보만을 제공할 뿐만 아니라, 초보 오퍼레이터에게는 자세한 시스템 안내와 정보를 제공한다. 고장 진단 모듈은 오퍼레이터가 장비의 고장을 진단하고 수리하는 것을 자원하기 위하여 전문가 시스템과 멀티미디어를 통합하여 구성하였다. 전문가 시스템을 사용하여 진단한 다음, 멀티미디어에 의한 어드바이스가 텍스트를 포함한 정지 화상이나 음성을 포함한 동화상에 의해 제시된다. HELPS는 훈련 시간과 고장 진단 및 수리 시간의 측면에서 평가되었고, 본 시스템 사용 전에 비하여 약 30%이상의 시간을 절감함으로써 생산성 향상에 크게 도움이 된다는 것을 확인하였다. 앞으로 본 시스템은 ICAI와 가상현실 기법 등을 이용하여 확장된다면 더 많은 생산성 향상을 기대할 수 있을 것이다.

• 한국산업보건학회지
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• 제29권4호
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• pp.603-609
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• 2019

Objectives: This case report aims to contribute to the enhancement of training quality for occupational accident prevention by conducting surveys on customers' satisfaction with the training course management by the Occupational Safety and Health Training Institute (OSHTI) of KOSHA. Methods: Surveys were conducted through phone calls, customer service documents, and questionnaires from January 1, 2018 to December 31, 2018. Results: The surveys showed an answer rate of 97.36% and handling rate of 97.47% in 2018, an increase of 1.15% compared to 2017. The number of monthly inbound calls in 2018 was 5,902, rising 0.10% year-on-year, and the average inbound calls per day in 2018 was 289, a decline from 291 the year before. The number of provisions of customer service in 2018 was 68,952, increasing 1.89% year-on-year. The number of inquiries on the training curriculum was 58,744 in 2018, an increase of 3.98% compared to the 56,498 recorded in 2017. Inquiries on job training centers were the most common, numbering 27,114 (39.32%), followed by e-learning 18,470 (26.79%) and expert courses 13,160 (19.09%). Of the 149 answers to the customer service survey, 'Nothing to complain about' accounted for 86 (56.72%) and 'Diversifying training time and programs' numbered 22 (14.77%). Conclusions: Customer satisfaction in 2018 increased compared to that in 2017. However, there is a need to reflect the demands of customers for diversifying training time and programs, offer practice-centered training, and collect opinions on providing information in order to maintain high quality training course management.

• Journal of Information Science Theory and Practice
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• 제7권4호
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• pp.33-44
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• 2019

Altmetrics measure the frequency of references about an article on social media platforms, like Twitter. This paper studies a variety of factors that affect the popularity of articles (i.e., the number of article mentions) in the field of psychology on Twitter. Firstly, in this study, we classify Twitter users mentioning research articles as academic versus non-academic users and experts versus non-experts, using a machine learning approach. Then we build a negative binomial regression model with the number of Twitter mentions of an article as a dependant variable, and nine Twitter related factors (the number of followers, number of friends, number of status, number of lists, number of favourites, number of retweets, number of likes, ratio of academic users, and ratio of expert users) and seven article related factors (the number of authors, title length, abstract length, abstract readability, number of institutions, citation count, and availability of research funding) as independent variables. From our findings, if a research article is mentioned by Twitter users with a greater number of friends, status, favourites, and lists, by tweets with a large number of retweets and likes, and largely by Twitter users with academic and expertise knowledge on the field of psychology, the article gains more Twitter mentions. In addition, articles with a greater number of authors, title length, abstract length, and citation count, and articles with research funding get more attention from Twitter users.

• 한국환경교육학회지:환경교육
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• 제21권2호
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• pp.25-39
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• 2008

The purpose of the study was to develop cyber in-service training contents regarding environmental literacy for entry-level environmental public servants. The blended type of contents were developed, through literature review, contents analysis of other programs, and expert conferences. The validity of the contents developed was ensured experts in environment. Major research findings were as followings: First, there is a lack of time for entry-level environmental public servants to participate in the environmental in-service training programs. Therefore, cyber training can be a good solution to the problems with environmental training courses. It improves access to educational opportunities as it overcomes the limitations of time and space and provides hands-on experiences through multimedia materials that reflect the real world. Second, directions for developing cyber environmental education contents were represented in three parts; 1) strategies for developing cyber environmental education contents, 2) Models for developing cyber environmental education contents, 3) Contents selection for developing cyber environmental education contents Third, the developed contents for entry-level environmental officers consist of 4 domains: (1) the introduction to environment; (2) the natural scientific understanding of environment; (3) the humanistic understanding of environment; and (4) the social scientific understanding of environment. Fourth, the program developed was evaluated by 7 environmental education experts according to 10 evaluation items of total contents and contents development structure. In result, the validity of the program was ensured. Based on the results, some recommendations were suggested.

• Journal of Gastric Cancer
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• 제21권2호
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• pp.179-190
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• 2021

Purpose: Reduced port laparoscopic distal gastrectomy (RPLDG) using 3 ports is less invasive than conventional laparoscopic distal gastrectomy (CLDG) using 5 ports. Although RPLDG performed by expert surgeons is safe and feasible, novice surgeons have difficulty performing this procedure. This study evaluated the surgical outcomes and feasibility of RPLDG performed by a novice surgeon. Materials and Methods: The records of 136 patients who underwent laparoscopic distal gastrectomy for gastric cancer performed by a single novice surgeon between May 2016 and December 2018 were retrospectively reviewed. Among these 136 patients, 52 underwent RPLDG and 84 underwent CLDG. The clinicopathological characteristics, operative outcomes, and short-term postoperative outcomes of the 2 groups were compared. Results: The percentage of women was significantly higher in the RPLDG group than in the CLDG group (48.1% vs. 31%; P=0.045), but other baseline characteristics did not differ significantly between the groups. Billroth II anastomosis was performed significantly more frequent (90.4% vs. 73.8%, P=0.015) and operation time was significantly shorter (207.1±43.3 min vs. 225.5±44.6 min, P=0.020) in the RPLDG group than in the CLDG group. The time to first flatus, postoperative pain score, length of postoperative hospital stay, and incidence and severity of complications did not differ significantly between the groups. Analysis of the learning curve based on the operation time showed that performing RPLDG on 20-30 patients was required to achieve technical proficiency. Conclusions: RPLDG is a safe and feasible surgical procedure for the treatment of gastric cancer, even when performed by a novice surgeon.

• 유통과학연구
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• 제16권9호
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• pp.65-77
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• 2018

Purpose - A trading area is very closely related to consumer life. A trading area is a cultural and social space that consumes culture and promotes human relationships as well as an economic space where consumers live their daily lives. In this context, a trading area research should be conducted objectively and empirically because it deals with the activities of consumer's life. The purpose of this study is to identify the intrinsic psychological motivation(push motivation) caused when consumers visit a trading area and to demonstrate how the push motivation for a trading area influence on consumer's flow, satisfaction, revisit intention. Research design, data, and methodology - In order to develop research hypotheses for this study, the development procedures for push motivation scale are as follows; (1) generating initial pool of items based on previous studies, (2) expert judgement to evaluate content and face validity, and (3) assessing convergent and discriminant validity using confirmatory factor analysis. In order to achieve these purposes, online surveys were conducted on frequent or familiar visitors to the trading areas around the Gangnam, Kunkuk University and Hongik University Station. Among the 1,343 questionnaires collected, 1,157 cases were analyzed by using SPSS 22.0 and SmartPLS 3.0 statistical package program, except for 186 responses in which responses were judged to be unfaithful. Results - The push motivation was classified into five sub-dimensions of excitement/stimulus, rest/relaxation, exit/refreshing, knowledge/learning and human relationship promotion as multidimensional and complex factors composed of individual and social-related dimensions. The excitement/stimulus and human relationship promotion of push motivation have positive effects on satisfaction. However, all dimensions of the push motivation have positive effects on flow. And flow has a positive effect on satisfaction and revisit intention. Meanwhile, the mediation test using boostrapping shows that flow plays a full mediating role in the relationship between rest/relaxation, exit/refreshing, knowledge/learning and satisfaction, but a partial mediating rol e between excitement/stimulus, human relationship promotion and satisfaction. Finally, satisfaction plays a partial mediating role between flow and revisit intention. Conclusions - This study shows that the push motivation is multidimensional and compositive depending on the situation of a consumer. In addition, it is found that the human relationship promotion(a social-related motivation) has a much more important effect on flow and satisfaction than other push motivations of individual dimensions. It also shows that satisfaction increases when consumers are being flowed at their visit and degree of revisit intention also grows as satisfaction increases. As implications of this study, a marketer should try to understand consumer's visit motivation at first and then develop factors that increase their flow, satisfaction, revisit intention. It also requires a marketer to approach subjects on a trading area more objectively and empirically based on the psychology and behavior of consumers, in order to establish a proper and efficient strategy on development of a trading area.