• Title/Summary/Keyword: experimental article

검색결과 671건 처리시간 0.026초

한방안이비인후피부과학회지에 게재된 안과 관련 논문에 관한 고찰 (The Review on the Ophthalmology related articles published in the Journal of Korean Medical Ophthalmology, Otolaryngology, Dermatology)

  • 김철윤;이동진;서형식;권강
    • 한방안이비인후피부과학회지
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    • 제27권2호
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    • pp.14-32
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    • 2014
  • Objective : This study was carried out to analyze the trends of ophthalmology related articles that have been published in the Journal of Korean Medical Ophthalmology, Otolaryngology, Dermatology(JKOOD). Method : We studied 72 research papers relevant to Ophthalmology that published in JKOOD from 1988 to 2013. All the paper were classified into three categories; original article, review article and case report. We also analyzed the articles according to the sort of diseases. We sub-classified the original articles into three categories descriptive study, analytic study and experimental study. We analyzed the case report according to various types of treatment. Result : 1. The number of searched journals is 72 papers; 21 review articles, 18 original articles, 33 case reports 2. Classification of 18 original articles into three categories; 12 descriptive studies, 0 analytic study, 6 experimental studies. 3. Distribution of diseases in ophthalmology; the percentage of 'strabismus' ranked the highest(25%) in case report. 4. Method of Evaluation in retina disease ; the percentage of fundus photography ranked the highest(50%) Conclusions : It is needed to develop the methods of study in part of eye disease. The studies using modern medical equipment should be increased in ophthalmology of Korean Medicine. It will be helpful to obtain objectivity and increase quality of studies.

An Overview of Chemically/Surface Modified Cubic Spinel LiMn2O4 Electrode for Rechargeable Lithium Batteries

  • Jung, Kyu-Nam;Pyun, Su-Il
    • 전기화학회지
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    • 제9권4호
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    • pp.158-169
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    • 2006
  • The present article is concerned with the overview of the chemically/surface modified cubic spinel $LiMn_2O_4$ as a cathode electrode far lithium ion secondary batteries. Firstly, this article presented a comprehensive survey of the cubic spinel structure and its correlated electrochemical behaviour of $LiMn_2O_4$. Subsequently, the various kinds of the chemically/surface modified $LiMn_2O_4$ and their electrochemical characteristics were discussed in detail. Finally, this article reviewed our recent research works published on the mechanism of lithium transport through the chemically/surface modified $Li_{1-\delta}Mn_2O_4$ electrode from the kinetic view point by the analyses of the experimental potentiostatic current transients and ac-impedance spectra.

Carbonaceous Materials as Anode Materials for Lithium Ion Secondary Batteries

  • Lee, Seung-Bok;Pyun, Su-Il
    • 전기화학회지
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    • 제6권3호
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    • pp.187-195
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    • 2003
  • The present article is concerned with the overview of carbonaceous materials used as anode materials for lithium ion secondary batteries. This article first classified carbonaceous materials into graphite, soft carbon and hard carbon according to their crystal structures, and then summarised the previous works on the characteristics of lithium intercalation/deintercalation into/from the carbonaceous materials. Finally this article reviewed our recent research works on the mechanism of lithium transport through graphite, soft carbon and hard carbon electrodes from the kinetic view point by the analysis of the theoretical and experimental potentiostatic current transients.

The Effects of Explicit Focus on Form on L2 Learning

  • Park, Hye-Sook
    • 영어어문교육
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    • 제8권1호
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    • pp.39-53
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    • 2002
  • Recently much research has investigated the role of attention in L2 learning, comparing the effects of explicit learning with those of implicit learning. With this background the research aims at examining the effects explicit focus on form has on L2 learning based on the acquisition of the English article system. The participants were 70 Korean college students who enrolled in English Composition classes. The experimental group received explicit focus on form including grammatical explanation, input enhancement, output practice, and negative evidence (corrective feedback) for two weeks, while the control group was exposed to sufficient input and negative evidence. Completion tasks were administered at the beginning and the end of the semester. In addition, errors in the use of English articles were analysed on their compositions both before and after the different treatments. The analyses of the results show that the explicit focus on form group improved significantly more than the control group, particularly for the definite article 'the', and some changes occurred in the distribution of article errors. These findings suggest that explicit teaching plays a more contributory role than implicit teaching in acquiring L2 knowledge in classroom-based L2 learning.

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Criteria for implementing artificial intelligence systems in reproductive medicine

  • Enric Guell
    • Clinical and Experimental Reproductive Medicine
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    • 제51권1호
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    • pp.1-12
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    • 2024
  • This review article discusses the integration of artificial intelligence (AI) in assisted reproductive technology and provides key concepts to consider when introducing AI systems into reproductive medicine practices. The article highlights the various applications of AI in reproductive medicine and discusses whether to use commercial or in-house AI systems. This review also provides criteria for implementing new AI systems in the laboratory and discusses the factors that should be considered when introducing AI in the laboratory, including the user interface, scalability, training, support, follow-up, cost, ethics, and data quality. The article emphasises the importance of ethical considerations, data quality, and continuous algorithm updates to ensure the accuracy and safety of AI systems.

실험적 단편 애니메이션에서 운동 이미지의 특성 연구 : 'Snack and Drink'와 'The Battle of Kerzhenets' 를 중심으로 (A study on the characteristics of the movement image in the experimental short animation film : Centering on 'Snack and Drink' & 'The Battle of Kerzhenets')

  • 오진희;김재웅
    • 만화애니메이션 연구
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    • 통권14호
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    • pp.101-114
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    • 2008
  • 이 논문은 실험적 단편 애니메이션에서 나타나는 조절된 움직임을 통해 영화의 운동 이미지가 특징적으로 드러남을 연구하였다. 애니메이션은 실사 영화의 쇼트 편집에서 나아가 프레임 사이의 관계를 재정의 하는 방식으로 운동 이미지에 대한 보다 적극적인 개입을 하게 된다. 애니메이션에서 운동은 단지 기법적인 것만이 아니라 애니메이션을 인지하고 감정을 불러일으키는 애니메이션의 본질적인 부분이며 개별 애니메이션의 의미를 드러내는 중심이라는 것을 운동 이미지라는 개념을 통해 이야기 하고 있다.

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당뇨병 및 소갈(消渴)의 최신 연구 동향 -2003년에서 2007년까지 한의학술논문을 중심으로- (The latest study trend about DM and So-gal -search oriental medical science article from 2003 to 2007-)

  • 이연경;최규호;신현철;강석봉
    • 대한한의학방제학회지
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    • 제15권2호
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    • pp.21-33
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    • 2007
  • At this moment, because there're lots of necessity to have an attention on diabetus mellitus (DM), in this article searched over all the Korean oriental medical academic journals about DM from 2003 to 2007, Method: Through data base system that Daegu Haany University affiliated information center & Korean Studies Information Center manage, selected 60 articles worthy to look up that are searched by the keyword 'DM' & '消渴'. Result and Conclusion: 5 articles of observing 'DM' & '消渴' itself academically, 29 articles of experimental study, 8 articles of clinical research study and 18 articles of case report. For experimental study, mostly it were concerning type II DM modeled rat medicated herb and its effect, so there were only a few type I experimental study. For observing articles, generally the causes, pathology, treatments, acupuncture methods and medication et al., variable studies were done. In clinical research, diverse categories were subject, which is to prove the efficacy of medication, acupuncture, physical therapy and diet supplements. And in case reports, focused not only on improvement in blood sugar level but also its complications.

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카오스 이론을 이용한 2상 유동 해석 (A Review on Two-Phase Flow Analysis using Chaos Theory)

  • 권정태;권영철;김경민
    • 전기학회논문지P
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    • 제56권1호
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    • pp.23-27
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    • 2007
  • This article presents a review on chaos analysis of two-phase flow. Chaos theory has recently been applied to two-phase flow analysis, and it gives promising measures to quantitatively identify two-phase flow patterns and pool boiling behaviors. But, consistency of the calculated chaotic measures were not completely confirmed yet. More experimental data are requested for chaos analysis of two-phase flow. Also, chaos analysis methodology should be developed by experimental verification.

Experimental and numerical investigation of composite conical shells' stability subjected to dynamic loading

  • Jalili, Sina;Zamani, Jamal;Shariyat, M.;Jalili, N.;Ajdari, M.A.B.;Jafari, M.
    • Structural Engineering and Mechanics
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    • 제49권5호
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    • pp.555-568
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    • 2014
  • In this article, stability of composite conical shells subjected to dynamic external pressure is investigated by numerical and experimental methods. In experimental tests, cross-ply glass woven fabrics were selected for manufacturing of specimens. Hand-layup method was employed for fabricating the glass-epoxy composite shells. A test-setup that includes pressure vessel and data acquisition system was designed. Also, numerical analyses are performed. In these analyses, effect of actual geometrical imperfections of experimental specimens on the numerical results is investigated. For introducing the imperfections to the numerical models, linear eigen-value buckling analyses were employed. The buckling modes are multiplied by very small numbers that are derived from measurement of actual specimens. Finally, results are compared together while a good agreement between results of imperfect numerical analyses and experimental tests is observed.

반응표면실험을 위한 3-수준 구형(球形) 실험설계: 구형 실험지역의 반경이 요인 수에 따라 변화하도록 구축된 설계 (Some 3-Level Spherical Designs for Response Surface Experiments: Designs Constructed for the Radius of the Spherical Experimental Region to Vary with the Number of Factors)

  • 이우선;임성수
    • 품질경영학회지
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    • 제29권1호
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    • pp.24-40
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    • 2001
  • Response surface designs can be classified, according to the shape of the experimental region, into spherical designs and cuboidal designs. Among the central composite design(CCD)s and the Box-Behnken design(BBD)s that are popular in practice, when the number of factors is k, spherical designs are tile CCDs with the axial value being $\sqrt{\textit{k}}$ and the BBDs, and cuboidal designs are the CCDs with the axial value being 1. With the CCDs having $\sqrt{\textit{k}}$ as the axial value, the radius of the experimental region varies with number of factors, but these designs are the 5-level designs. With the BBDs that are 3-level designs, the radius of the experimental region does not vary with the number of factors. In this article, we propose tile 3-level spherical designs which are constructed so that tile radius of the experimental region varies with the number of factors.

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