• Title/Summary/Keyword: Science Learning

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Prediction of Landslides and Determination of Its Variable Importance Using AutoML (AutoML을 이용한 산사태 예측 및 변수 중요도 산정)

  • Nam, KoungHoon;Kim, Man-Il;Kwon, Oil;Wang, Fawu;Jeong, Gyo-Cheol
    • The Journal of Engineering Geology
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    • v.30 no.3
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    • pp.315-325
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    • 2020
  • This study was performed to develop a model to predict landslides and determine the variable importance of landslides susceptibility factors based on the probabilistic prediction of landslides occurring on slopes along the road. Field survey data of 30,615 slopes from 2007 to 2020 in Korea were analyzed to develop a landslide prediction model. Of the total 131 variable factors, 17 topographic factors and 114 geological factors (including 89 bedrocks) were used to predict landslides. Automated machine learning (AutoML) was used to classify landslides and non-landslides. The verification results revealed that the best model, an extremely randomized tree (XRT) with excellent predictive performance, yielded 83.977% of prediction rates on test data. As a result of the analysis to determine the variable importance of the landslide susceptibility factors, it was composed of 10 topographic factors and 9 geological factors, which was presented as a percentage for each factor. This model was evaluated probabilistically and quantitatively for the likelihood of landslide occurrence by deriving the ranking of variable importance using only on-site survey data. It is considered that this model can provide a reliable basis for slope safety assessment through field surveys to decision-makers in the future.

The Development of a Technology.Home Economics Teacher-Training Program (기술.가정과 교사 교육 프로그램 개발)

  • Nam, Seung-Kwon;Choi, Won-Sik;Yin, Zi-Long
    • 대한공업교육학회지
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    • v.36 no.2
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    • pp.25-46
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    • 2011
  • The purpose of this study is to develop a teacher-training program to improve the Technology Home Economics teacher's educational activity effects. To accomplish this goal, this study developed a training program for the Technology Home Economics teacher through the literature study and the research. The conclusion drawn from this study is as follows: First, it needs to develop a systematic teacher training program to raise the professionalism related to the Technology Home Economics teacher's instruction. Second, the developed program for the Technology Home Economics teacher organizes the 46 subjects and 121 educational contents, and this educational program is worthwhile to be facilitated when a teacher-training institution like the Ministry of Eduction, Science and Technology, local education offices and universities organizes a teacher-training program. Third, as the result analyzing teachers' training demands about the educational contents of a Technology Home Economics teacher-training program, it was appeared that the most demand was 'development of professional activities for the Technology Home Economics teacher', and following demands were the 'production of various evaluation tools', the 'effectively epilogue strategy', and the 'technology to increase the learning motivation' in order. Therefore a training program for the Technology Home Economics teacher should deal these educational contents importantly, and a future teacher-training program developer need to refer to them.

A Study on Quantitative Evaluation Method for STT Engine Accuracy based on Korean Characteristics (한국어 특성 기반의 STT 엔진 정확도를 위한 정량적 평가방법 연구)

  • Min, So-Yeon;Lee, Kwang-Hyong;Lee, Dong-Seon;Ryu, Dong-Yeop
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.7
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    • pp.699-707
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    • 2020
  • With the development of deep learning technology, voice processing-related technology is applied to various areas, such as STT (Speech To Text), TTS (Text To Speech), ChatBOT, and intelligent personal assistant. In particular, the STT is a voice-based, relevant service that changes human languages to text, so it can be applied to various IT related services. Recently, many places, such as general private enterprises and public institutions, are attempting to introduce the relevant technology. On the other hand, in contrast to the general IT solution that can be evaluated quantitatively, the standard and methods of evaluating the accuracy of the STT engine are ambiguous, and they do not consider the characteristics of the Korean language. Therefore, it is difficult to apply the quantitative evaluation standard. This study aims to provide a guide to an evaluation of the STT engine conversion performance based on the characteristics of the Korean language, so that engine manufacturers can perform the STT conversion based on the characteristics of the Korean language, while the market could perform a more accurate evaluation. In the experiment, a 35% more accurate evaluation could be performed compared to the existing methods.

The Comparative Effects of Yugmijihwangtang in Donguibogam and Experiment Research Results -Focusing on the Korean Medicine and Traditional Chinese Medicine- (육미지황탕 효능의 동의보감과 실험연구결과의 비교고찰 -한의학과 중의학을 중심으로-)

  • Han, Yoochang;Kim, Myung Dong;Lee, Sundong
    • Herbal Formula Science
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    • v.25 no.2
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    • pp.223-251
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    • 2017
  • Objectives : A lot of experiment results of Yugmijihwangtang(YM) are reported in various kinds of journals. Many of them report on the new effects that are not recorded in the traditional medical texts. So it is necessary to take it into consideration that newly reported effects could be of help to clinical practice, because this process of comparison of Donguibogam and scientific experiment results will have basis to lead into the evidence based medicine. Methods : We compared the effects of in Donguibogam and the experiment results of YM. Results : The effects of YM in Donguibogam are to replenish essence and marrow, and to treat red wen, fatigue, treat hypouresis, urinary sediment, urinary urgency, hematuria, hydrocephalus, speech and movement retardation, yin-deficiency, diabetes mellitus, nonalcoholic fatty liver, melanoma, disability to see near and far sight, tinnitus, hearing loss, alopecia, angiogenesis, cough, cough at night, trachyphonia, and, infantile convulsion. The experiment results of YM since 2000 in both Korea and China are to inhibit atopic dermatitis, renal interstitial fibrosis, anti-oxidant, emphysema, stress, glomerulosclerosis, diabetic nephropathy, chronic glomerulonephritis, hemorrhage, plantar sweating, dermal aging, kidney aging, bone loss, breast cancer, pathological myocardial cell, primary liver cancer, thrombosis, osteoporosis, intrauterine growth retardation, chronic renal failure, IgA nepropathy, slow cerebral development, and hippocampal tissue lesions on the one hand, and to help bone formation, renin-angiotensin- aldosterone system, cerebral recovery, cognitive function and expression, osteoblast proliferation and differentiation, learning and memory, cold-tolerance and oxygen deficit-tolerance and anti-fatigue, endometrial formation, humoral and cell-mediated immunity, immune regulation effect, Hypothalamus-Pituitary-Ovary Axis, and spermatogenesis, on the other hand. Conclusion : When we compared the effects of YM with the experiment results of YM, there existed a considerable gap between them. So, from now on, it is expected that a great effort and consideration are needed to solve these gaps from an academic and clinical point of view.

A Case of Alpha Wave Asymmetric Neurofeedback Training of Adolescents having Left and Right Alpha Wave Asymmetry Caused by Traumatic Brain Injury Sequela (외상성 뇌손상 후유증으로 인한 좌 우 Alpha파 비대칭성이 유발된 청소년의 Alpha파 비대칭 뉴로피드백 훈련 1례)

  • Cheong, Moon Joo;Weon, Hee Wook;Chae, Eun Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.8
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    • pp.171-180
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    • 2017
  • The purpose of this study is to determine an effective training method to improve sequela, since traumatic brain injury sequela is a major factor in determining the quality of life. Neurofeedback training was conducted for an adolescent who had experienced traumatic brain injury during his childhood and who had difficulty in cognitive learning and emotional aspects. The assessment of an adolescent was conducted using K-WAIS-IV intelligence test and QEEG brain wave analysis. In the neurofeedback training, T3 alpha wave compensation and T4 alpha wave inhibition training were performed 36 times for 30 minutes three times a week. In addition to the neurofeedback training, respiratory meditation was also made available to the adolescent. As a result, the adolescent showed a stable condition as indicated by taking a good sleep, reducing test anxiety, and satisfaction with final exam results. This study revealed the possibility for hidden physical and psychological problems arising due to childhood brain trauma. It has also recently been discovered that a more diverse set of tools can be found. In addition, these childhood traumatic brain injuries can be improved through brain training and meditation. The study finding is meaningful for its suggestion of a fusion method for developing mind and body therapy in terms of brain science.

Study of On- and Off-Campus Clinical Practice Satisfaction and Major Satisfaction among Dental Hygiene Students in Some Regions (일부지역 치위생(학)과 학생들의 교내·외 임상실습만족도와 전공만족도에 관한 조사연구)

  • Moon, Seon-Jeong;Ku, In-Young;Choi, Hwa-Young;Ka, Kyung-Hwan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.11
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    • pp.6793-6803
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    • 2014
  • A self-administered survey was conducted on dental hygiene students at colleges or universities in Chungcheong Province to increase the levels of practice for them and provide basic data that could improve their major satisfaction after practice. The data was collected from December 2012 to April 2013 and 766 questionnaires, except for 13 containing insincere responses, were finally analyzed using SPSS/Win18.0. The on- and off-campus practice groups formed 59.7% and 57.4%, respectively. The most frequent place for practice was university dental hospitals, followed in order by hospitals/clinics and health centers. University students were more satisfied with on-campus practice in terms of factors, such as practice contents, practice time, and practice performance than those at three-year colleges. The students in the higher grades were more satisfied with the practice time. The university students were also more satisfied with off-campus practice in terms of all the factors than those at three-year colleges. The students in higher grades were more satisfied with the practice time and practice performance. The on- or off-campus practice group was generally more satisfied with their major than the non-practice group, and each of the factors-practice performance, practice time, practice environment, and practice contents-significantly affected the major satisfaction. The results highlight the need to plan and provide satisfactory education based on an understanding and awareness of students so that they can take pride in their major through on- and off-campus practice. In addition, it is also necessary to develop educational guidelines for clinical practice and efficient programs so that clinical practice can create the optimal learning situation.

Towards Evolution of Innovation System of Korean IT SoC Industry: Comparing Experiences of Korea and Taiwan (국내 IT SoC산업의 혁신체제 발전방안: 대만과의 비교 관점에서)

  • Min, Wan-Kee;Oh, Wan-Keun;Hwang, Jin-Young
    • Journal of Korea Technology Innovation Society
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    • v.11 no.4
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    • pp.565-591
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    • 2008
  • Using theories of sectoral innovation system and supply chain management, this paper examines the status quo of Korean IT SoC industry's innovation system by comparing it with Taiwanese one. Taiwan IT SoC industry has accomplished a rapid growth on the basis of government policies that foster domestic firms after the establishment of Hsinchu Science Park. Cooperative networks between foundries firms and fablesses have been formed within the supply chain in this process. Therefore, Taiwan industry has possessed the possibility of the coevolution in sectoral innovation system. However, Korean IT SoC industry has failed to form cooperative networks, because of weak networks between related firms. In other words, there exists an interaction failure, which is a kind of the system failure, and it means a lack of linkage between actors as a result of insufficient use of complementarities and interactive learning. Therefore, Korean industry has little possibility of the coevolution in sectoral innovation system. The cooperative networks between actors are prerequisite towards evolution of innovation system of Korean IT SoC industry. Above all, the cooperative networks between fablesses and system companies need to be strengthened within the supply chain.

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The effectiveness of Sensory Integration : Systematic Review (감각통합 중재 효과에 대한 체계적 고찰)

  • Park, Eom-Ji;Shin, Joong-Il
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.7
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    • pp.144-153
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    • 2016
  • This study examined the recent study trends through a systematic review of the effect of sensory integration intervention and the objective reason to show the areas where sensory integration intervention is effective. The databases, Medline and EMBASE, were searched for "Occupational therapy", "Sensory integration therapy", "Sensory processing", "Weighted vest", and "Wilbarger protocol". For the analysis studies, 14 studies on the effects of sensory integration intervention from 2010 to 2015 were analyzed and organized according to the principle of PICO. According to the result, there were 4 studies each of evidence levels I and e V, which was the largest number of studies (28.6%). The result from frequency analysis of the measurement used for measuring the effects of intervention showed that GAS and VABS-II were used in the 4 studies (11.8%). 71.4% of children with autism spectrum were the major subject group in the analysis studies and sensory integration intervention had an effect on the motor performance, sensory processing, behavior, learning-related education, and occupation performance area. This study result will be useful for establishing sensory integration as an interventional program in occupational therapy practice. In further studies, it will be important to verify the intervention effect of sensory integration in another rehabilitation area.

Security Measures through a Statistical Analysis of Accident within the School (학교내 사고 통계분석을 통한 안전대책 방안)

  • Kim, Tae-Hwan;Hong, Jun-Soo;Lee, Jae-Min
    • Korean Security Journal
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    • no.34
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    • pp.139-160
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    • 2013
  • Growth of minors learning space that the school is a place where many students live. Students, but in the living space of these minors values of change and chaos that occurs in addition to school safety incidents typically occur many accidents and potential for accidents to occur. Tinking of these potential events. Indifferent about the safety of schools and teachers with the much more conscious of the safety of the students lean due to being generated. Body and life, and damage to property due to these events. Accidents due to wear and sometimes liability and indemnity issues surrounding tarnished with the image of the school and teachers look forward to hearing from parents about the school deterioration, resulting in an unfavorable impact. Therefor in this essay, we are presenting case analysis may occur or re-occur. Prevent accidents that can identify and Countermeasures against accidents that occur within the school.

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A Study for Examine into Nursing Organizational Culture (I);Review of the Literature about the Concept of Organizational Culture (병원 간호조직문화 규명을 위한 연구(I);조직문화 개념에 대한 문헌고찰)

  • Kim, Moon-Sil;Han, Su-Jeong;Kim, Jung-A;Park, Hyun-Tae
    • Journal of Korean Academy of Nursing Administration
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    • v.4 no.1
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    • pp.89-105
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    • 1998
  • Modern organizations, both complicated and complex, operate in an economic climate of· turbulence and rapid change. And Today's healthcare environment is changing, driven by demographic, environmental. social, political and technological forces. In actual practice, the organization usually depend on several factors such as economic state of organization, managerial strategies, a synthesis of several theories that reflect individual biases, specific circumstances, and practical realities. These rapidly changing healthcare environment and professional nursing practice need a strategy for the organizational development and goal attainment. An understanding of organizational culture could help managers enhance or expand their management strategy, thus increasing the probability of their success in the organization. Organizational culture is an abstract, yet potent managerial concept. With roots in several disciplines, several perspectives and definitions of organizational culture have emerged. The concept of organizational culture has been rapidly introduced into the academic and organizational world, with the much attention to the excellent companies that have continued rapid grow th despite the overall world economic recession in the late of 1970s. Organizational culture is the combination of the symbols, language, assumptions, and behaviors that overtly manifest an organization's norm and values. It is the taken-for-granted and shared meanings people assign to their social surroundings that can have a profound effect on an organizaitonal decision making and performance. For attaining a organizational goal and developing organization, it is necessary to put emphasis on developing organizational culture. It has to set organizational culture well understood by its members as an instrument to achieve the organizational goals. Both Manager and staff can focus and act on the values identified. Also, managers will exhibit better decision making capabilities because they are guided by perception of the organizational values. Therefore, understanding of organizational culture could give a strategy for organizational development that assist hiring personnel, orienting new comers, facilitating organizational change and promoting learning and so on. But their is few study on nursing organizational culture in Korea. Moreover they have not had a clear definition of Korean nursing organizational culture. Therefore, it is necessary to lay down definition of Korean nursing organizational culture and fine out real factor of Korean nursing culture. For defining a definition of Korean nursing organizational culture, this study assessed several definitions of organizational culture, factors of culture, types of culture, and functions of culture through book review.

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