• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.10
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• pp.75-80
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• 2017

In this paper, we describe the effect of the regularization method and the network with identity mapping on the performance of the activation functions in deep convolutional neural networks. The activation functions act as nonlinear transformation. In early convolutional neural networks, a sigmoid function was used. To overcome the problem of the existing activation functions such as gradient vanishing, various activation functions were developed such as ReLU, Leaky ReLU, parametric ReLU, and ELU. To solve the overfitting problem, regularization methods such as dropout and batch normalization were developed on the sidelines of the activation functions. Additionally, data augmentation is usually applied to deep learning to avoid overfitting. The activation functions mentioned above have different characteristics, but the new regularization method and the network with identity mapping were validated only using ReLU. Therefore, we have experimentally shown the effect of the regularization method and the network with identity mapping on the performance of the activation functions. Through this analysis, we have presented the tendency of the performance of activation functions according to regularization and identity mapping. These results will reduce the number of training trials to find the best activation function.

• Therapeutic Science for Rehabilitation
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• v.2 no.1
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• pp.13-23
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• 2013

Constraint-Induced Movement Therapy(CIMT) is considered as one of the most interesting upper extremity rehabilitation in the field of neurorehabilitation. CIMT is an intensive training provided in the affected upper limb for 6 hours a day, 5 days a week for 2 weeks, while unaffected arm is restrained for 90% of waking hours. Recently, instead of CIMT, modified Constraint-Induced Movement Therapy(mCIMT) has been applied because of the clinical limitations of CIMT. CIMT or mCIMT studies have used various outcome instruments to measure different aspects of upper limb function after intervention. There are various kinds of evaluation tools to measure different aspects of upper limb function after CIMT intervention. It has been proven that Pediatric Motor Activity Log(PMAL), Quality of Upper Extremities Skills Test(QUEST), Melbourne Assessment of Unilateral Upper Limb Function(MAULF), Assisting Hand Assessment (AHA) are effective. The purpose of this study was to investigate the cortical change in children with hemiplegic cerebral palsy after CIMT. As a result, use-dependent cortical reorganization was revealed. Also, increased activity of the contralateral motor cortex and decreased activity of the ipsilateral cortex were found. It supports the mechanism of cortical reorganization, the principles of neural plasticity and specifically activation of the contralateral cortex, for improving upper limb function after CIMT.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.5
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• pp.2117-2124
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• 2012

This is the study of actual condition and improvement on emergency medical treatment by 119 emergency medical service personnel. The subjects in this study were 299 emergency medical service personnel. Data were collected from May 1 to August 31 of 2010, and analyzed by SPSS 12.0 program. The major area of study of them were study of emergency medical services 41.5%, study of nursing 10.0%, fire fighting related studies 15.4%, health related studies 1.0%, and others 32.1%. The certificate of them were 1st class emergency medical technician(EMT) 38.1%, 2nd class EMT 33.8%, nurse 9.4%, first aid education 14.0%, and others 4.7%. Frequency of Prehospital emergency care, oxygen supply(274), splint apply(229), spinal immobilization(229), external bleeding control(223), medication(7), intravenous(4). Professionally trained EMT makes possible to secure high quality emergency medical treatment in the prehospital phase. Therefore, it is essential for the quality improvement of prehospital emergency care that well trained EMT ride on the ambulance together and take the responsibility for the treatment and transferring of emergency patients. In order to improve the proficiency of 119 emergency medical services personnel, it is also necessary to provide continuous job training programs for the prehospital emergency medical treatment.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.102-112
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• 2001

It has been passed $5\~6$ years since Construction Management introduced in Korea, but a few government projects have been presented as CM instances. We performed CM service, on behalf of the foreign Client, in the Insa-dong construction, I-Project. Even though there were many limits in cost, time and other aspects, we have attained satisfaction of the Client and successful businesses of all the construction parties as adopting the advanced management methods. Many advanced construction methods have been applied for the purpose of time reduce, cost save and quality assurance as well as to the webbased project management has been imported to overcome the limits of time and place. They have actualized to increase the productivity of the project by managing the floor to floor cycle and quality systemically pursuant to ISO 9002, and by adopting Real-name construction and completion system (or individual activity. While carrying out this project, it is possible to establish mutual reliability and understanding enable to resolve the issues occurring in the early stage due to insufficient understanding of CM, lack of communications and team work, indistinct work scope through continuos training and conferences. Additionally, we became to share business targets among the parties and promoted the project in confidence. We wish that the success of I- project to be rated as a standard model of CM in Korea.

• Journal of the Korean Geographical Society
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• v.31 no.2
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• pp.255-267
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• 1996

The so-called Cultural and Historical Geography, sometimes called even as the Historical and Cultural Geography, has been defined as an interdiscipline that encompasses several disciplines in Korea. Scholars with various academic background have participated in the academic activity of the Association of Korean Cultural and Historical Geographers that was organized in the late 1980s. The academic majors of these participants are cultural geography, historical geography, history of geography, urban geography rural geography, economic geography, social and economic history anthropology, landscape architecture, and so on. It was in the 1960s that articles about the Cultural and Historical Geography appeared for the first time in the major academic journals in Korea. The pioneers of publishing these articles in the 1960s continued to conduct their research, while training students majoring in the Cultural and Historical Geography in the 1970s. All of these pioneers and their students were very active in the formation of identity vrith the Cultural and Historical Geography In the 1980s. Cultural and Historical Geography in Korea took a great leap forward both in quantity and in quality. The number of articles in the journal increased substantially, and the range of research theme and methodology extended in a great deal. It was also in the late 1980s that the Association of Korean Cultural and Historical Geographers was organized in Seoul, Korea, and this association began to publish a professional journal named Cultural and Historical Geography once a year. In the 1990s, single-authored books dealing with Korean Cultural and Historcial Geography began to appear in public as textbooks or research monographs. These books are expected to speed up the spread of Cultural and Historical Geography in Korea. If it continues to grow further both in quantity and in quality as it has been, Cultural and Historical Geography in Korea will be able to stand as an independent academic field in the future. Until then, however, it cannot but avoid its mission to contribute to an integrated development of human geography in Korea. It has already gained not only its own merit in the humanistic perspective but also its own strength in its synthetic understanding.

• Journal of Korean Society of Forest Science
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• v.109 no.3
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• pp.350-360
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• 2020

The purpose of this study was to identify and prioritize the key indicators and drivers of forest thinning. The research for this study was designed in two-phases: 1) sequential, exploratory, mixed methods research that was initiated with a qualitative phase (Delphi technique), and 2) the quantitative phase (Analytic Hierarchy Process technique). Results indicated that management and planning were the most important factors in the first level of criteria among the "management and planning," "directing and monitoring," "supervision," and "quality of thinning work." On the sub-criteria level, "the quality of forest management planning" was indicated as the most important factor among the ten sub-criteria. Our results have shown that the developed forest thinning evaluation factors were a well-represented characteristic for a variety of forest thinning work in Korea.

• Journal of Bio-Environment Control
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• v.13 no.1
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• pp.39-43
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• 2004

This study was conducted to determine the optimum planting distance under rain-shielding condition for improving quality and productivity of squash by staking cultivation. The squashes were grown by 3 planting distances, such as 120${\times}$30, 120${\times}$40 and 120${\times}$50 cm during 3 months under non heat condition. The vine length, fresh weight and leaf area were reduced as planting distance was decreased until main branch was pinching. The first female flowering day and first fruit setting nodes were not different among treatments. The first fruit length and second fruit weight were increased in 120${\times}$50 cm planting distance, but the soluble solid contents were not different among treatments. In 120${\times}$30 cm plant distance, total yield was highest (6,510 kg/10a), but marketable yie이 was lowest. When the planting distance was between 120${\times}$40 cm and 120${\times}$50 cm, the marketable rate was similar (over 98%), but marketable yield was highest in 120${\times}$40 cm planting distance (5,012 kg/10a). The results of this study indicated that the optimum planting distance of staking cultivation in squash seemed to be 120${\times}$40cm.

• Korean Journal of Social Welfare Studies
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• v.48 no.1
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• pp.55-89
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• 2017

This study suggests future directions or approaches as to how we should appraise qualitative studies by reviewing previous studies on this topic written in English and published outside of Korea. This study explored experiences and perspectives of qualitative researchers in Korea by conducting a focus group discussion on this topic. Results of this focus group discussion indicated that qualitative researchers often face manuscript reviewers who are overly biased with quantitative paradigm which result in feeling of frustration. They also shared feeling burdened and confused as reviewers due to their own lack of training and preparedness in reviewing qualitative articles. However, participants also stressed the feeling of gratitude and being rewarded because of the experience of mutual growth and partnership with peer qualitative researchers as they strive towards improving the quality and completion of peer researchers' work. Previous studies on this topic included wide range of issues concerning qualitative research appraisal from reflections on the experiences as submitters and reviewers of qualitative studies to academic conceptual papers that discussed researchers' dilemma on research paradigms and qualitative research appraising methods. This study ends with suggestions for the future directions for qualitative researchers in Korea.

• Journal of the Korea Convergence Society
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• v.12 no.12
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• pp.39-47
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• 2021

The construction of high-quality input features through effective segmentation is essential for increasing the sentence comprehension of a language model. Improving the quality of them directly affects the performance of the downstream task. This paper comparatively studies the segmentation that effectively reflects the linguistic characteristics of Korean regarding word and sentence classification. The segmentation types are defined in four categories: eojeol, morpheme, syllable and subchar, and pre-training is carried out using the RoBERTa model structure. By dividing tasks into a sentence group and a word group, we analyze the tendency within a group and the difference between the groups. By the model with subchar-level segmentation showing higher performance than other strategies by maximal NSMC: +0.62%, KorNLI: +2.38%, KorSTS: +2.41% in sentence classification, and the model with syllable-level showing higher performance at maximum NER: +0.7%, SRL: +0.61% in word classification, the experimental results confirm the effectiveness of those schemes.

• 재활복지
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• v.22 no.1
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• pp.157-168
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• 2018

The purpose of this study is to investigate the impact of semi-closed vocal training-based Vocal Aerobic Treatment on the voice improvement of soprano. Study subject was one soprano who appealed to the suffering of her voice problem due to vocal cord nodule. A study method of conducting pre/post acoustic evaluation and subjective voice evaluation to compare the measures was used; Vocal Aerobic Treatment was carried out twice a week for a total of 32 session. In the acoustic evaluation, MDVP (multi-dimensional voice program) and VRP (voice range profile) were used to evaluate the pitch, voice quality, and voice range; in the subjective voice evaluation, SVHI (singing voice handicap index) was used to assess voice satisfaction. As a result of the pitch evaluation, the soprano maintained a proper Fo. As a result of the voice quality evaluation, the jitter, shimmer, and the noise harmonic ratio numbers decreased compared to the numbers shown before the treatment. As a result of the voice range evaluation, the scope of the range was broadened, with the number of semitone increasing from 30 to 35. As for the subjective voice evaluation, the result of the total score obtained after the survey report divided by the number of questions showed a decrease from 3.6 to 0.6. The soprano herself reported of having a minor extent of a voice problem. The summary of the above results reflects that Vocal Aerobic Treatment is useful in the voice improvement of vocalists However, as this study is case research regarding the Vocal Aerobic Treatment effect on one soprano, further research on the treatment effect covering many other vocalists is necessary. Also, there is a need for follow-up studies regarding voice management and voice treatment program on not only the vocalists but also the voice users in many other professions.