• 제목/요약/키워드: traditional experiments

검색결과 1,079건 처리시간 0.039초

Self-adaptive and Bidirectional Dynamic Subset Selection Algorithm for Digital Image Correlation

  • Zhang, Wenzhuo;Zhou, Rong;Zou, Yuanwen
    • Journal of Information Processing Systems
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    • 제13권2호
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    • pp.305-320
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    • 2017
  • The selection of subset size is of great importance to the accuracy of digital image correlation (DIC). In the traditional DIC, a constant subset size is used for computing the entire image, which overlooks the differences among local speckle patterns of the image. Besides, it is very laborious to find the optimal global subset size of a speckle image. In this paper, a self-adaptive and bidirectional dynamic subset selection (SBDSS) algorithm is proposed to make the subset sizes vary according to their local speckle patterns, which ensures that every subset size is suitable and optimal. The sum of subset intensity variation (${\eta}$) is defined as the assessment criterion to quantify the subset information. Both the threshold and initial guess of subset size in the SBDSS algorithm are self-adaptive to different images. To analyze the performance of the proposed algorithm, both numerical and laboratory experiments were performed. In the numerical experiments, images with different speckle distribution, different deformation and noise were calculated by both the traditional DIC and the proposed algorithm. The results demonstrate that the proposed algorithm achieves higher accuracy than the traditional DIC. Laboratory experiments performed on a substrate also demonstrate that the proposed algorithm is effective in selecting appropriate subset size for each point.

봉정사 대웅전 보 방향 공포의 강성산정을 위한 유한요소해석 (A FEA for the Stiffness Estimation of the Transverse Kong-Po in Dae-Woong-Jeon of Bongjeong-Sa)

  • 정성진;홍성걸;김남희;이영욱;황종국;배병선
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2006년도 정기 학술대회 논문집
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    • pp.405-412
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    • 2006
  • Among the various problems involved in the structural analysis of the Korean traditional wooden structure, the analytical model for the Kong-Po is controversial subject as usual. While some experiments are tried for establishing the basis of analytical models, most of these experiments are performed using scale down specimens. So, it is not possible to apply these experimental results to structural analysis of Korean traditional wooden structure directly. A numerical study for analogizing the stiffness of full scale Kong-Po structure is performed on the basis of experimental specimen. Some parameter studies using finite element method are made in this study. The finite element analysis used in this study is geometric material nonlinear analysis. The stiffness of Kong-Po structure found out in this study can be used for modelling the joints of the Korean traditional wood structure in frame analysis.

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전통주택과 공동주택의 온·습도 변화 비교 연구 - 호남지방을 중심으로 - (A Study on the Comparison of Temperature and Relative Humidity between Korean Traditional House and Apartment House - Focused on the Honam District -)

  • 송민정;천득염;김선우
    • KIEAE Journal
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    • 제1권2호
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    • pp.29-36
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    • 2001
  • The main procedure of this study is to compare temperature and relative humidity between Korean traditional house and apartment house. So, the experiments of measuring temperature and humidity were carried out in 6 Korean traditional houses and 2 apartment houses which are located in Honam district. The Korean traditional house has good conservation properties on temperature and much better effective than apartment house on humidity conservation. The results of this study may be used for basic material in revitalizing traditional construction method.

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한의학과 세계 전통의학의 웹정보 동향

  • 전병권
    • STIMA Bulletin
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    • 통권4호
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    • pp.25-31
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    • 2006
  • We studied about the webdirectory of Korean traditional medicine which receives footlights from medical field in the research and the world traditional medicine. Korean traditional medicine is an integral part of Korean ancient folk medicine. It includes Korean medication, hebalogy, acupuncture, massage and Qigong. Hospitals in Korea are classified as specialized in western medical system. Korean traditional medicine or both. Scientific research and clinic experiments in Korean traditional medicine are continuously progressing. Successes have been made in many of the areas such as in circulating paths of meridians in healing emergency patients with shock, acute myocardial infarction and acute renal failure. Acupuncture anesthesia and acupuncture analgesia has promoted the acupuncture therapy to many patients. Cooperated in Korean traditional medicine has been established between china and Japan, the United State and the orther underdevelopment countries.ꤠ돐邰⨀塨?⨀梸?⨀脠

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국악뮤지컬에 나타난 소리(창(唱))의 수용 및 변화양상 연구 - "'국악뮤지컬집단 타루'를 중심으로" - (Studies about Acceptance of Songs or Sounds 'Sori(唱)' appeared in Musical Comedy performed in Korean Traditional Music and Changeable Aspects Thereof - Centering around Korean Musical Group, Taroo -)

  • 정혜원
    • 한국연극학
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    • 제49호
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    • pp.5-47
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    • 2013
  • Among the styles of performing arts, perhaps the genre that has attracted the largest audience would be musical. Popularity of musical has brought diverse changes in our performing arts market, and, upon emerging another musical genre, called 'Korean Traditional Musical Comedy,' it has been well-received by the audiences. 'Korean Traditional Musical Comedy' is a word that are formed by merging two other terms such as 'Korean Traditional Music' and 'Musical (Comedy).' In the meantime, however, it has yet some problems in order to be defined as the genre that has concrete concepts. It is because the term such as Korean Traditional Musical Comedy was created being closely associated with a marketing purpose rather than a term that defines the characteristics of a genre of performing arts. Although this new musical genre has drawn attentions of many audiences by adding 'Musical Comedy' to 'Korean Traditional Music' that was not quite popular to the public, it still does not have any established forms so that there is a fine line between "Korean Traditional Musical Comedy" and another genre like traditional style folk opera ("Changgeuk"). Looking at the characteristics of the musical work called 'Korean Traditional Musical Comedy, in general, first of all, it is a performance where music and drama are played. Here, the distinctive characteristic of this musical is that 'Korean Traditional Music' is sung. And the kinds of Korean traditional musics being sung are mainly Pansori (dramatic story-singing) and folk-songs, and, in most cases, Korean traditional musical instruments are being used as accompanying music. In this paper, the researcher investigated the aspects of experiment centering around Korean Musical Group, Taroo. These days, various experiments has been repeated not only for the works of Taroo but other musical work presently called 'Korean Traditional Musical Comedy' also. Having encompassed overall performance factors including use of musical instruments, dance, acting, materials for drama as well as music in drama, the researcher has gone through experiments repeatedly. Meanwhile, however, the subject matters that make 'Korean Traditional Musical Comedy' mostly attractive to the audiences are music and songs or sounds. ["Sori" also called "Chang" (唱)] Particularly, under the current situation of our musicals, the role of "Sori" is extremely important. The factor that plays absolutely most important role in acceptance and transformation of "Sori" is the created Pansori. Since the created Pansori is composed with new rhythmic patterns and new narrative poems, it tells the present story. Also it draws good responses from the audiences owing to easy conveyance of dialogues. And, its new style brings diversification to organization of musical instruments, so then this leads to the arrangements of music for Korean traditional music instruments, as well as instrumental music ensemble, orchestra, and jazz band, etc. Likewise, upon appearing creative musics in 'Korean Traditional Musical Comedy,' professional music and vocal compositions have begun to emerge naturally. And, the song specialist and writer, of course, staffs including direction, lighting, and sounds, etc are required. That is, professional composition method are forced to be introduced to all areas. Other than this, there are many music pieces which are based on our unique songs and sounds ("Sori") and such traditional factors as use of lead singer for ceremony or chorus, and the method that puts weight on Pansori. Accordingly many things accomplished. However, it is required that 'Korean Traditional Musical Comedy' go through numerous discussions and more experiments. Above all, the most important things are the role of actor and actress, and their changes, and training of actor and actress further. Good news is there are good audience responses. 'Korean Traditional Musical Comedy' is an open genre. As musicals are divided into several domains according to the characteristics thereof, 'Korean Traditional Musical Comedy' will be able to show its distinctive features in various styles according to embodiment.

A Study on a Trend of Human Error Types Observed in a Simulated Computerized Nuclear Power Plant Control Room

  • Lee, Dhong Ha
    • 대한인간공학회지
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    • 제32권1호
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    • pp.9-16
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    • 2013
  • Objective: The aim of this study is to investigate a trend of human error types observed in a series of verification and validation experiments for an Advanced Control Room(ACR) equipped with Lager Display Panel(LDP), Work Station Flat Panel Display(WS FPD), list type Alarm System(AS), Soft Control(SC) and Computerized Procedure System(CPS). Background: Operator behaviors in a fully computerized control room are quite different from those in a traditional hard-wired control room. Operators in an ACR all together monitor plant status and variables through their own interface system such as LDP and WS FPD, are notified of abnormal plant status through their own list type AS, control the plant through their own SC, and follow the structured procedure through their own CPS whereas operators in a traditional control room only separately do their duty directed by their supervisor. Especially the secondary task such as manipulating the user interface of ACR can be an extra burden to all the operators including the supervisor. Method: The Reason's human error classification method was applied to operators' behavioral data collected from a series of verification and validation experiments where operators showed their plant operational behaviors under a couple of harsh scenarios using the ACR simulator. Results: As operators accustomed to the new ACR system, knowledge or rule based mistakes appearing frequently in the early series of experiments decreased drastically in the latest stage of the series. Slip and lapse types of errors were observed throughout the series of experiments. Conclusion: Education and training can be one of the most important factors for the operators accustomed to the traditional control room to be adapted to the new system and to run the ACR successfully. Application: The results of this study implied that knowledge or rule based mistakes can be reduced by training and education but that lapse type errors might be reduced only through innovative improvement in human-system interface design or teamwork culture design including a new leadership style suitable for ACR.

간질성 방광염의 개괄과 한의학적 연구의 필요성 (Review of Interstitial Cystitis and Need for Therapeutic Strategy Using Traditional Korean Medicine)

  • 박상우;김철중;조충식
    • 대한한의학회지
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    • 제33권3호
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    • pp.120-132
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    • 2012
  • Objectives: This study aimed to analyze the current status of treatments and patients with interstitial cystitis, and then map out a strategy for development of generalized-treatments for interstitial cystitis in Traditional Korean Medicine. Methods: We selected research paper from various databases such as PubMed, Google, KStudy, KoreanTK, OIM, and KOMS. Also, to understand current tendencies of medical cost related with interstitial cystitis, we requested Health Insurance Review and Assessment Service clinical data from 2007 to 2011. Results: It was reported that treatment of interstitial cystitis using Traditional Korean Medicine was effective. However, patients of this usually visit a Western medical center rather than seek Traditional Korean Medicine. To take charge of clinical fields related with interstitial cystitis by Traditional Korean Medicine, we need more research and experiments of interstitial cystitis using Traditional Korean Medicine, and we must make a standardized protocol. Conclusions: Various studies related with interstitial cystitis using Traditional Korean Medicine will have to be undertaken. We expect that Traditional Korean Medicine will play a role in treatment of interstitial cystitis.

고등학교 화학II 수업에 적용한 Small-Scale Chemistry 실험의 효과 (The Effects of Small-Scale Chemistry Laboratoty Programs in High School Chemistry II Class)

  • 홍지혜;박종윤
    • 한국과학교육학회지
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    • 제27권4호
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    • pp.318-327
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    • 2007
  • 본 연구의 목적은 고등학교 화학II 교과에서 Small Scale Chemistry(SSC)를 적용한 수업이 학생들의 과학 탐구 능력과 과학관련 태도에 미치는 효과를 알아보는데 있다. 연구 대상은 인문계 고등학교 3학년 학생 112명이며, 실험 집단과 비교 집단으로 나누었다. 화학II 교과서의 기존 실험을 대치할 수 있는 SSC 실험을 7개 선정하여 이를 실험 집단에 적용하고, 비교 집단에는 교과서에 제시된 기존 실험을 적용하였다. 연구 결과 두 집단 간에 과학 탐구 능력의 향상에는 유의미한 차이가 있었으나, 과학관련 태도의 향상에는 유의미한 차이가 없었다. 세부 분석 결과 과학 탐구 능력의 차이는 기초 탐구 능력의 차이에 의한 것으로 나타났다. 실험 집단 학생들은 SSC 실험이 기존 실험에 비해 많은 장점(예를 들면, 개별 실험, 실험과 이론의 동시 학습, 짧은 실험 시간, 안전성, 친환경성 등)이 있음을 인식하고 있었다. 이러한 결과는 고등학교 화학 과목에 SSC 실험을 적용할 가치가 있음을 나타내며 현 교과서의 기존 실험을 대치할 수 있는 다양한 SSC 실험을 개발하여 보급할 필요가 있음을 시사한다.

교실 실험법을 활용한 새로운 가정자원관리 교육 방안에 관한 연구 (A Study on New Method for Teaching Family Resource Management with Classroom Experiments)

  • 조유현
    • 가족자원경영과 정책
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    • 제13권4호
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    • pp.39-52
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    • 2009
  • The purpose of this research is to introduce a new method for teaching family resource management using classroom experiments. Classroom experiments are very attractive in the sense that students are placed directly into the various environments being studied, and they enhance the effectiveness of the Socratic Method, as opposed to traditional lectures. The family resource management approach focuses on the resource allocation behavior of families in the utilization of their human and non-human resources to achieve goals. Therefore, there are many family resource decision situations to which classroom experiments may be fruitfully applied. Within this context, this research provides useful implications for applying managerial concepts of family resource management behavior in practical situations. The study results might be used to analyze an interactive framework that facilitates discussions of classroom experiments, family resource management behavior and human ecology.

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Ginsenoside Rg3 ameliorates myocardial glucose metabolism and insulin resistance via activating the AMPK signaling pathway

  • Ni, Jingyu;Liu, Zhihao;Jiang, Miaomiao;Li, Lan;Deng, Jie;Wang, Xiaodan;Su, Jing;Zhu, Yan;He, Feng;Mao, Jingyuan;Gao, Xiumei;Fan, Guanwei
    • Journal of Ginseng Research
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    • 제46권2호
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    • pp.235-247
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    • 2022
  • Background: Ginsenoside Rg3 is one of the main active ingredients in ginseng. Here, we aimed to confirm its protective effect on the heart function in transverse aortic coarctation (TAC)-induced heart failure mice and explore the potential molecular mechanisms involved. Methods: The effects of ginsenoside Rg3 on heart and mitochondrial function were investigated by treating TAC-induced heart failure in mice. The mechanism of ginsenoside Rg3 for improving heart and mitochondrial function in mice with heart failure was predicted through integrative analysis of the proteome and plasma metabolome. Glucose uptake and myocardial insulin sensitivity were evaluated using micro-positron emission tomography. The effect of ginsenoside Rg3 on myocardial insulin sensitivity was clarified by combining in vivo animal experiments and in vitro cell experiments. Results: Treatment of TAC-induced mouse models with ginsenoside Rg3 significantly improved heart function and protected mitochondrial structure and function. Fusion of metabolomics, proteomics, and targeted metabolomics data showed that Rg3 regulated the glycolysis process, and Rg3 not only regulated glucose uptake but also improve myocardial insulin resistance. The molecular mechanism of ginsenoside Rg3 regulation of glucose metabolism was determined by exploring the interaction pathways of AMPK, insulin resistance, and glucose metabolism. The effect of ginsenoside Rg3 on the promotion of glucose uptake in IR-H9c2 cells by AMPK activation was dependent on the insulin signaling pathway. Conclusions: Ginsenoside Rg3 modulates glucose metabolism and significantly ameliorates insulin resistance through activation of the AMPK pathway.