• 제목/요약/키워드: experimental review

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고등학교 가정과 피복재료 탐구실험학습 모형 개발 (A Study on the Development of Scientific Experimental Model for the Home Economics Textiles Class in High School)

  • 라상숙;이전숙;김용숙
    • 한국가정과교육학회지
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    • 제10권1호
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    • pp.153-169
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    • 1998
  • The purposes or this study were to develop the scientific experimental model, experimental guidelines for teachers, experiment planning & report form for students, and evaluation scales for the Home Economics Textiles class in high school. First, through review of literature concerned, scientific experimental model was defined, and the usefulness of this model on the teaching situation testified on other subjects such as Physics and Bilolgy, was reviewed. Secondly, scientific experimental model, experimental guidelines for teachers, experiment planning & report form for students, and evaluation scale were developer on the bases on APU evaluation model, experimental guidelines for teachers, experiment planning & report form for students, evaluation scale applicable to the teaching situation ere established by analysing the significant differences scientifically.

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지능형 아카이브 솔루션을 활용한 공개재분류 연구: 2020년 국가기록원 공개재분류 사업을 중심으로 (A Study on Access Re-Review Using Intelligent Archive Solutions: Focusing on the Access Re-Review Project of the National Archives of Korea in 2020)

  • 송주형
    • 한국기록관리학회지
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    • 제21권4호
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    • pp.101-115
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    • 2021
  • 기록물 공개의 전(前)단계인 공개재분류 업무는 가치있고 중요한 업무다. 그러나 그 의미와 중요성과 별개로 일선 기록연구사에게는 귀찮고 부담스러운 업무이기도 하다. 이에 기록연구사의 업무 부담을 경감해주는 공개재분류 자동화가 제안되기도 했다. 이런 상황에서 국가기록원의 '2020년 공개재분류 결과 건별 입력 위탁사업' 수행 간 공개재분류 솔루션을 활용하였고, 이를 사람이 한 작업과 비교⋅분석해 보았다. 물론 해당 사업은 공개재분류 솔루션에 대한 분석과 연구가 중심인 연구용역 사업이 아니었고, 상용프로그램을 실험적으로 사용해 본 제한적 결과라는 한계는 존재한다. 그럼에도 지능형 아카이브의 공개재분류에 대한 거시적이고 피상적인 논의만 있는 현 상황에서 기록연구사가 활용가능한 공개재분류 솔루션을 실제 사업에서 활용한 결과를 살펴보는 것은 여러모로 의미가 있으리라 생각된다. 본 논문은 공개재분류 솔루션의 활용 사례에 대한 분석을 통해 공개재분류 업무를 경감시킬 수 있는 실질적이고 미시적인 차원의 논의이다.

Online Social Media Review Mining for Living Items with Probabilistic Approach: A Case Study

  • Li, Shuai;Hao, Fei;Kim, Hee-Cheol
    • 스마트미디어저널
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    • 제2권2호
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    • pp.20-27
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    • 2013
  • The concept of social media is top of the agenda for many business executives and decision makers, as well as consultants try to identify ways where companies can make profitable use of applications such as Netflix, Flixster. The social media is playing an increasingly important role as the information sources for customers making product choices etc. With the flourish of Web 2.0 technology, customer reviews are becoming more and more useful and important information resources for people to save their time and energy on purchasing products that they want. This paper proposes the Bayesian Probabilistic Classification algorithm to mine the social media review, and evaluates it by different splits and cross validation mechanism from the real data set. The explored study experimental results show the robustness and effectiveness of proposed approach for mining the social media review.

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State of the Art Review of Shading Effects on PV Module Efficiencies and Their Detection Algorithm Focusing on Maximum Power Point

  • Lee, Duk Hwan;Lee, Kwang Ho
    • KIEAE Journal
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    • 제14권2호
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    • pp.21-28
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    • 2014
  • This paper provides the up to date review of the shading effects on PV module performance and the associated detection algorithm related to the maximum power point tracking. It includes the brief explanations of the MMP variations due to the shading occurrence on the PV modules. Review of experimental and simulation studies highlighting the significant impacts of shading on PV efficiencies were presented. The literature indicates that even the partial shading of a single cell can greatly drop the entire module voltage and power efficiency. The MMP tracking approaches were also reviewed in this study. Both conventional and advanced soft computing methods such as ANN, FLC and EA were described for the proper tracking of MMP under shaded conditions. This paper would be the basic source and the comprehensive information associated with the shading effects and relevant MPP tracking technique.

Efficacy of probiotics for managing infantile colic due to their anti-inflammatory properties: a meta-analysis and systematic review

  • Shirazinia, Reza;Golabchifar, Ali Akbar;Fazeli, Mohammad Reza
    • Clinical and Experimental Pediatrics
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    • 제64권12호
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    • pp.642-651
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    • 2021
  • Background: Infantile colic (IC) is excessive crying in otherwise healthy children. Despite vast research efforts, its etiology remains unknown. Purpose: Most treatments for IC carry various side effects. The collection of evidence may inform researchers of new strategies for the management and treatment of IC as well as new clues for understanding its pathogenesis. This review and meta-analysis aimed to evaluate the efficacy and possible mechanisms of probiotics for mananaging IC. Methods: Ten papers met the study inclusion and exclusion criteria, and the meta-analysis was conducted using Review Manager (RevMan) software and a random-effects model. Results: This meta-analysis revealed that probiotics are effective for treating infantile colic, while the review showed that this efficacy may be due to their anti-inflammatory effects. Conclusion: Probiotics may be an important treatment option for managing infantile colic due to their anti-inflammatory properties.

우리나라 재래염소의 질병에 관한 연구-문헌조사 (Studies on The Diseases of the Korean Native Goat-A Review)

  • 이정길;이채용;곽형수
    • 한국임상수의학회지
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    • 제17권1호
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    • pp.32-44
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    • 2000
  • The Korean native goat has been extensively used in the experimental work. Compared to those experimental work employing the goat, reports on their diseases have been scarcely documented. In the present communication, authors reviewed the literatures pertaining to the diseases of the Korean native goat. Diseases of the respiratory system, the alimentary tract, the liver, the musculoskeletal system, the skin, the urogenital system, the nervous system, the eye, and the heart were reviewed. And then metabolic, toxic, and parasitic diseases were reviewed. Of those diseases reviewed, diseases of the heart and kidney, and metabolic and toxic diseases were wholly artificially-induced. Except the parasitic diseases, a considerable number of diseases of other organ systems were also artificially-induced. And the parasitic diseases reported were confined to the internal parasites. Authors feel that the known occurrence of diseases would help diagnose new disease in the goat.

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가스터빈 날개의 냉각에 대한 연구동향 (A Review of the Study on a Blade Cooling for the Gas Turbine)

  • 장태현;길상철;조홍곤
    • 한국산업융합학회 논문집
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    • 제11권2호
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    • pp.65-70
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    • 2008
  • This study presents gas turbine cooling blade by using experimental and numerical works. The review cover researches related to cooling channels using finite element method in rotating blade. Also, the film cooling device and the heat transfer of the external surface of the blade are included. In addition, several methods to be used for the design of the blade, numerical method and experimental techniques are introduced. This work will contribute to improving the manufacturing of engine and the efficiency of gas turbine engines.

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Shear-Strengthening of Reinforced & Prestressed Concrete Beams Using FRP: Part I - Review of Previous Research

  • Ary, Moustapha Ibrahim;Kang, Thomas H.K.
    • International Journal of Concrete Structures and Materials
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    • 제6권1호
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    • pp.41-47
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    • 2012
  • Fiber-Reinforced Polymers (FRP) are used to enhance the behavior of structural components in either shear or flexure. The research conducted in this paper was mainly focused on the shear-strengthening of reinforced and prestressed concrete beams using FRP. The main objective of the research was to identify the parameters affecting the shear capacity provided by FRP and evaluate the accuracy of analytical models. A review of prior experimental data showed that the available analytical models used to estimate the added shear capacity of FRP struggle to provide a unified design equation that can predict accurately the shear contribution of externally applied FRP. In this study, the ACI 440.2R-$08^1$ model and the model developed by Triantafillou and Antonopoulos$^2$ were compared with the prior experimental data. Both analytical models failed to provide a satisfactory prediction of the FRP shear capacity. This study provides insights into potential reasons for the unsatisfactory prediction.

오리피스 유형별 유동가속부식 영향 분석 (Analysis of Flow-Accelerated Corrosion Effects by the Type of Orifice)

  • 황경모;진태은;김경훈
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2008년도 추계학술대회B
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    • pp.2483-2488
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    • 2008
  • To mitigate the effects of cavitation and flashing, several types of orifices have been installed in the pipeline of new nuclear power plants. To review the effects of wall thinning caused by flow-accelerated corrosion by the types of orifices, which are cone and plate, and the relation between flow behavior and local wall thinning, experiments and numerical analyses for the downstream pipe of two types of orifices were performed. The experimental results in terms of static pressure obtained for the experimental facilities were compared with those of three-dimensional (3D) numerical analyses using the FLUENT code. As the results of review of flow-accelerated corrosion effects based on the experiment and numerical analysis, it was identified that the orifice of cone-type can be comparatively mitigated the effects of cavitation and flashing, but can not be mitigated the effect of flow-accelerated corrosion.

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우리말 소리갈(國語音聲學)에 대한 연구 - 주시경, 김두봉, 최현배, 이극로를 중심으로 - (A Historical Review of Sorigal (Korean Phonetics) in the early 20th Century)

  • 이숙희;고도흥
    • 음성과학
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    • 제7권4호
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    • pp.149-167
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    • 2000
  • The purpose of this paper is to review the contribution made by some phoneticians including Si-gyung Chu, Du-bong Kim, Hyun-bae Choi, and Geuk-ro Lee in the early 20th century. It is known that the period can be characterized as the coexistence of traditional phonetics and modem phonetics. Si-gyung Chu well recognized the physical nature of speech sounds from the physiological point of view. Although Du-bong Kim adapted Chu's approach in some ways, he made some more detailed modifications in explaining the vocal organs. Hyun-bae Choi tried to explain the consonants and vowels systematically based on Western theories of phonetics. Finally, Geuk-ro Lee made the most significant contribution by introducing the experimental phonetics.

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