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      • KCI등재

        정전류 및 정전압 출력 특성을 갖는 보상 네트워크 재구성형 무선전력전송 시스템

        박주,김기범,조영균,이상원 전력전자학회 2024 전력전자학회 논문지 Vol.29 No.2

        The charging of lithium-ion batteries is normally implemented by constant current(CC)–constant voltage (CV) charging. In this charging procedure, the equivalent load resistance modeled by the battery varies over a wide range, making it difficult to charge the battery with a wireless power transfer(WPT). A new WPT system, which reconfigures the circuit topology in each CC and CV charging mode, was proposed to address this issue. The proposed system changed the compensation network from series–series compensation in the CC mode to LCC-S compensation in the CV mode, and the reconfiguration was implemented by the two bidirectional switches, which only use single on/off signal. In addition, the phase-shift modulation was adopted to mitigate the effect of the parasitic resistance in the regulation of the circuit, so the precise regulation of the CC and CV output was achieved regardless of the load resistance in each mode. Finally, a 200 W prototype was built to validate the proposed system, and the results showed that the proposed system suits the battery charging process well.

      • 바둑의 스포츠 논쟁

        박주 한국체육철학회 2002 움직임의철학 : 한국체육철학회지 Vol.10 No.2

        바둑은 스포츠인가? 이 질문에는 많은 논란이 있을 수 있으나 바둑은 스포츠가 될 수 없다. 첫째, 스포츠의 신체운동은 근육, 골격, 신경 등을 중심으로 한 인간활동 즉, 물리적 운동이 중심이 된 신체운동(human movement)을 의미한다. 그러나 바둑은 두뇌(지적작용)운동을 중심으로 한 신체운동(human movement)을 의미하고 있다. 둘째, 스포츠의 기술은 신체동작과 관련되고 이 신체동작이 활동의 과정을 지배하고 결과를 결정하지만 바둑은 두뇌(지적)작용에 의한 합리적 선택이 결과를 결정하는 문화적 특성을 지니고 있다. 셋째, 스포츠관련학과와 바둑학과의 교과과정은 명칭, 내용 등에서 유사성을 찾을 수 없다. 넷째, 바둑의 스포츠 주장논리는 설득력이 부족하며, 인준절차에서도 공론화의 과정 없이 추진되었다. 이러한 결과는 스포츠와 바둑의 정체성을 모호하게 만들 것이다. Can Baduk Be a Sport? Park, Ju Han(Seoul Women's University) Is Baduk a sport? This question can cause many controversies, but Baduk can be a sport. There are several reasons. First, the activities in sport are physical movements which the muscles, skeletons, and neurons are involved in. In contrast, Baduk requires more intellectual activities and the role of physical activities is minimized. Second, the sport skills are determined by the qualities of human movements themselves. That is, the results of performance are influenced by the qualities of physical activities. However, In Baduk the qualities of a decision-making determine the result of performance, and the role of physical activities is minimized. Third, one cannot find any similarities in the curriculum contents and department name in universities. Lastly, the argument that Baduk can be a sport has not provided a strong theoretical base. In addition, Baduk was endorsed as a sport without the process of theoretical tests and agenda. This will make the identity of sport and Baduk unclearer.

      • KCI등재

        2009 개정 교육과정 초등 3~4학년음악 검정교과서 국악 감상영역 분석 연구

        박주 한국음악교육학회 2014 음악교육연구 Vol.43 No.3

        현재 음악과 교육과정은 2007 개정 교육과정에서 2009 개정 교육과정으로 그 적용이 연결되고 있는 시기이다. 특히 올해 초등 3~4학년은 2009 개정 교육과정 및 검정교과서가처음 도입되어 적용되었다. 개정된 2009 음악과 교육과정의 주요 특징 중에 하나는 감상교육의 강조이다. 내용체계에 있어서도 감상영역을 따로 분리하여 음악 기초교육으로의 감상활동을 크게 강조하였다. 이에 본 연구에서는 새로 개정되어 도입된 2009 개정 교육과정에따른 초등 3~4학년 음악 검정교과서 6종(권)의 국악 감상영역을 항목(비율, 갈래 및 형태,학습내용)에 따라 분석하고, 그에 따른 개선 방안을 제시하였다. 이는 학교 현장에서의 활동적인 국악 감상수업을 위한 교육과정 재구성과 추후 개발되는 교육과정 및 교과서 개발에 시사점을 줄 것이다.

      • KCI등재

        Mild hydrocracking of 1-methyl naphthalene (1-MN) over alumina modified zeolite

        박주,Syed Ahmed Ali,Khalid Alhooshani,Nor Azizi,Jin Miyawaki,김태곤,이영진,김현석,윤성호,Isao Mochida 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.2

        The catalytic activity and life of the NiMoS supported on alumina–USY zeolite (physical mixture of alumina and USY (NMAZ), USY zeolite coated with alumina (NMACZ-2)) were compared in the hydrocracking of 1-methyl naphthalene by a single run at the several reaction temperatures between 360 and 400 8C as well as repeated runs at 360 8C. The relative activity of NMAZ is slightly higher after 1 h at all reaction temperatures, but was lower after 2 h at reaction temperatures above 380 8C. The preference of NMACZ-2 became distinct and definite by further increasing the reaction time at all reaction temperatures. Too long reaction time, particularly at higher reaction temperature, decreased the yield of (alkyl)benzenes, indicating the significant progress of the successive reactions. Thus, the highest yield of alkyl(benzenes) of about 97% was obtained over NMACZ-2 after 4 h at 380–390 8C. This was much less than the yield of about 82% obtained over NMAZ after 4 h at 370 8C. Ten repeated runs at 360 8C for 6 h resulted in marked decrease of yield over NMAZ from 73% to 64%, while the decrease in yield over NMACZ-2 was only from about 80% to 78%. The decrease of catalytic activity appears to reflect the coke formation on the USY which occurs on the naked acidic site of the substrate, which are rather isolated from the NiMoS on alumina. In contrast, alumina-coated support keeps USY underneath the alumina, which carries NiMoS and acidic sites on the same surface. The acidity of surface alumina is moderated by the underneath USY. The adequate acidity of the neighboring NiMoS and high hydrogenation activity provide a good balance resulting in an excellent catalytic activity and life of NiMoS supported on alumina-coated USY zeolite.

      • 청소년의 애착유형과 상담관계에 대한 기대와의 관계

        박주,강문희 서울여자대학교 특수치료전문대학원 2006 심리치료: 다학제적 접근 Vol.6 No.2

        본 연구는 청소년의 애착유형과 상담관계에 대한 기대 간의 관계 연구로서 애착유형과 성별에 따라 상담관계에 대한 반응에 어떠한 차이가 있는지를 분석하여 상담 장면 에서 서로 다른 애착 유형을 가진 남, 여 청소년 내담자들에게 다른 전략적 개입을 할 수 있는 상담의 준비 작업으로서의 유용한 기본 자료를 제시하는 것에 그 목적이 있다 본 연구에서 사용한 척도는 Bartholomew의 4척도 (안정형,몰입형,무시형,두려움형)로 구성된 애착관계 질문지 를 사용하여 애착유형을 분류하였으며 상담관계 형용사 질문지를 이용하여 요인 분석 후 추출된 5개 요인으로(합리적인,권위적인,지지적인,혼돈스러운,'민감한) 연구를 진행하였다. 연구의 결과는 다음과 같다 첫째,네 가지 애착유형에 따라서 상담관계에 대한 기대 요인(합리적인,권위적인,지지적인,혼돈스러운,민감한)이 ‘민감한’을 제외한 4개의 상담관계기대에서 각각 차이가 나타났다. 둘째,성별에 따라 ‘합리적인’과 ‘혼돈스러운’ 두 상담관계에 대한 기대에서 유의한 차이를 보였는데 긍정적 요인인 ‘합리적인’은 여성이 남성보다 높은 기대를 하고 있었으며 부정적 요인인 ‘혼돈스러운’은 반대로 남성이 여성보다 높은 기대를 하는 것 으로 나타났다. 셋째,애착유형과 성별에 따라 상담관계에 대한 기대의 차이를 살펴본 결과 애착유형 중,두려움형과 무시형의 남성 내담자들이 상담을 ‘권위적’이고 ‘혼돈스러운’ 것으로 높게 기대한다는 결과를 도출했다. The present research concerns expectations of counseling relationships,which vary depending on sex and attachment patterns of the clients,and is designed to analyze how clients' reactions differ matching the relationships formed. Relationship Questionnaires(RQ) and questionnaires of adjectives were administered to 800 high school students for the present study. After One-way ANOVA to measure the differences of expectations among the categorized attachment pattern groups,Scheffe’s post hoc test, and Independent specimen T -test were utilized for data analysis. Two-way ANOVA also applied to observe the interactions between sex and the attachment types. The results of this study are as follows : 1. All the factors of expectations, except for ‘sensitive’, from counseling relationships differed in accordance with 4 attachment patterns. 2. According to sex,there have been shown meaningful differences between the factors of ‘rational’ positive,with the higher expectation rate from women than men, and ‘confused’ negative, and otherwise. 3. Male clients, who personally visited and participated in our research, having been grouped into the types of ‘fearful’ and ‘dismissing’,were founded,from their different expectations of counseling relationships depending on their sex and attachment patterns,that they expected the counsel to be much confused.

      • KCI등재

        Behaviors of metal compounds during hydrodemetallization of atmospheric residue

        박주,Adel Al-Mutairi,Abdulazeem M.J. Marafie,Isao Mochida,윤성호,Xiaoliang Ma 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.40 No.-

        Behaviors of vanadium and nickel species during hydrodemetallization (HDM) were studied. A Kuwaitatmospheric residue and its hydrodemetallized products from a pilot plant at mild and severe reactionconditions were characterized by using GPC coupled with ICP-MS and high temperature GC-AED afterseparation of them into saturates, aromatics, resins, and asphaltenes. It was found that the HDMreactivity of the vanadium species, especially those with lower molecular weight, was higher than that ofNi species, probably due to the higher polarity of the former than the latter. HDM of the vanadiumspecies in the asphaltene was more difficult than that in the resin. The average molecular weight of metalspecies through higher temperature HDM was higher than that through the lower temperature HDM,although the metal removal at the higher temperature is higher.

      • KCI등재

        주제중심의 통합적 국악수업이 초등학생의 음악 학습동기에 미치는 영향

        박주 한국음악교육학회 2011 음악교육연구 Vol.40 No.1

        This study is conducted to look into how Korean traditional music play activities based on the theme-centered and integrated approach affect on the learning motivation of elementary school students. The subjects of this study are 38 sixth graders(20 boys and 18 girls) in one class at G elementary school in S city. For data analysis, both quantitative analysis using the statistics program and qualitative analysis using students’ portfolio and teachers’ observation record were conducted. According to the findings, the theme-centered and integrated Korean traditional lesson using Korean traditional music plays showed a significant effect in attention and satisfaction, so it was found to have an effect on students’ music learning motivation. In addition, the results of qualitative analysis showed activities through cooperation and collaboration between students and teachers made open and enquiring Korean traditional music lessons possible and helped improve the students’ interest and participation in the class.

      • KCI등재

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