가변 페브리-페로 필터와 FBG를 이용한 광세기 기반 자기기준 광섬유 센서

최상진,반재경,Choi, Sang-Jin,Pan, Jae-Kyung 대한전자공학회 2013 전자공학회논문지 Vol.49 No.11

본 논문에서는 자기기준 특성을 가지는 광세기 기반 광섬유 센서 구조를 제안하고 실험적으로 구현하여 성능을 제시한다. 제안하는 광섬유 센서는 광대역 광원(BLS), fiber Bragg grating (FBG), 가변 페브리-페로(Fabry-Perot) 필터, LabVIEW 프로그램으로 구성된다. 제안한 자기기준 광섬유 센서의 이론적인 해석을 통하여 측정 변수(X)와 보정 변수(${\beta}$)를 정의하고, 이를 바탕으로 전달함수(H)를 구한다. 또한 실험을 통하여 이론적인 해석의 타당성을 제시한다. 제안한 광섬유 센서 구조는 광대역 광원의 출력 광세기가 0 dB, 3 dB, 6 dB 감소해도 측정결과에 영향을 미치지 않는 자기기준 특성을 가진다. 또한 다른 특성의 FBG를 사용하여도 측정 가능하므로, 제안한 광섬유 센서 구조는 임의의 규격을 가진 FBG를 사용할 수 있다. 광원의 광세기가 감소하였을 때와 세 가지 다른 특성의 FBG 쌍을 이용하여 측정한 결과 이론적인 값과 잘 일치함을 보였다. 따라서 제안한 광섬유 센서는 자기기준 특성과 구성하는 FBG의 규격이 비교적 엄격하지 않아도 되는 장점을 가진다. In this paper, we have proposed and experimentally demonstrated an intensity-based self-referencing fiber optic sensor. The proposed fiber optic sensor consists of a broadband light source (BLS), fiber Bragg grating (FBG), tunable Fabry-Perot (F-P) filter, and LabVIEW program. We define the measurement parameter (X) and the calibration parameter (${\beta}$) to determine the transfer function(H) of the self-referencing fiber optic sensor, and the validity of the theoretical analysis is confirmed by experiments. The self-referencing characteristic for the proposed system has been validated by showing that the measurement parameter (X) is invariant for BLS optical power attenuations of 0 dB, 3 dB, and 6 dB. Also, the measured result is irrelevant to the FBGs with different characteristics. This means that the proposed fiber optic sensor offers the flexibility for determining the FBGs needed for implementation. Experimental results for the proposed fiber optic sensor are in good agreement with a theoretical analysis for BLS optical power attenuations and for three FBG pairs with different characteristics. So, the proposed fiber optic sensor has several benefits, including the self-referencing characteristic and the flexibility to determine the FBGs.

비정질 루테늄 산화물을 사용한 수계 Supercapacitor의 전기화학적 특성

최상진,도칠훈,문성인,윤문수,육경창,김상길,Choi, Sang-Jin,Doh, Chil-Hoon,Moon, Seong-In,Yun, Mun-Su,Yug, Gyeong-Chang,Kim, Sang-Gil 한국전기화학회 2002 한국전기화학회지 Vol.5 No.1

비정질 루테늄 산화물을 사용한 수퍼캐패시터를 개발하였다. 삼염화루테늄 수화물$(RuCl_3{\cdot}xH_2O)$로부터 제조한 비정질의 이산화루테늄 수화물$(RuO_2{\cdot}nH_2O)$을 사용하여 수퍼캐패시터 전극을 제조하였다. 집전체로는 티타늄 및 STS 304박막에 비해 보다 넓은 전위창을 가지는 탄탈륨 박막을 사용하였다. 제조한 전극과 4.8M 황산 전해액을 사용하여 수퍼캐패시터를 제조하였다. 전극의 비정전용량은 순환전위전류분석에서 미분 최대 값으로 산화 및 환원 과정 각각 710 및 $645\;F/g-RuO_2{\cdot}nH_2O$이었으며, 평균값은 $521\;F/g-RuO_2{\cdot}nH_2O$으로 나타났다. 수퍼캐패시터를 포화카로멜기준전극에 대하여 0.5 V로 protonation level을 조정하고, 충방전 시험한 바, $151\;F/g-RuO_2{\cdot}nH_2O$의 비정전용량을 나타내었다. A supercapacitor was developed using an amorphous ruthenium oxide material. The electrode of supercapacitor was prepared using an amorphous ruthenium oxide, which was synthesized from ruthenium trichloide hydrate$(RuCl_3{\cdo5}xH_2O)$. Thin film of tantalum was used as a current collector because it had wide. potential window characteristics than titanium and 575304 materials. A supercapacitor was assembled with ruthenium oxide as an electrode active material and 4.8M sulfuric acid solution as an electrolyte. The specific capacitance of the electrode was tested by a cyclic voltammetry using a half cell. The maximum differential specific capacitances during the oxidative and the reductive scans were 710 and $645\;F/g-RuO_2{\cdot}nH_2O$, respectively. The average specific capacitance was $521\;F/g-RuO_2{\cdot}nH_2O$. The assembled supercapacitor was protonated to the potential level of 0.5V vs. SCE. Super-capacitor, which was adjusted to the appropriate protonation level, had the specific capacitance of $151\;F/g-RuO_2{\cdot}nH_2O$ based on the concept of full cell.

대학교 학생선수의 수업참여도와 진로결정 효능감 간의 관계 및 운동종목에 따른 조절효과 분석

최상진(Choi, Sang-Jin),박수근(Park, Soo-Keun) 한국체육과학회 2019 한국체육과학회지 Vol.28 No.1

The purpose of this study was to investigate a study on the moderating effect between class participation and career decision efficacy of college student athletes according to sports event. The subjects of this study were collected 331 of college player who are belong to the department of physical education in Gyeoggi Province and Seoul area. The survey questionnaires were used to collect the data. The collected material was carried out by using Spss 18.0 version. The questionnaires for the class participation scale had been developed by Kim(2016) and Jang(2013), and career decision efficacy scale had been developed by Taylor & Bets(1983), Lee(2004), and Kim(2013). From the analyses of the data, the study reached the following conclusions. The research hypothesisⅠwas partially established, More details, Class interest affected the efficacy of career decisions, and the attitude of participation affected the efficacy of career decisions. The research hypothesis Ⅱwas partially established. More details, Interventions of sports events showed the interaction between classes and career determination efficacy. The interactive effects of classroom interest and the interaction of sports events were reflected in the collection of vocational information among the lower factors of career decision efficacy. The interactive effects of the participatory attitude and the exercise of sports events appeared in self-evaluation among the lower factors of career decision efficacy.

실체명사(實體名詞)의 의미형질(意味形質) 분석(分析)

최상진 ( Choi Sang-jin ) 한국어문교육연구회 2008 어문연구(語文硏究) Vol.36 No.2

이 論文은 實體名詞를 對象으로 單語가 文章의 意味構成要素로서 구실을 할 때, 그 意味成分은 어떻게 分析되어야 할 것인가를 考察한 것이다. 이 연구는 用法說을 바탕으로 實體名詞가 意味形質이라는 資質模型으로 분석될 수 있음을 提案하여 單語意味 成分分析에 대한 새로운 方法을 摸索해 보았다. 實體名詞의 의미형질을 形相과 質料라는 두 資質因子로 분석하였다. 實體名詞의 단어의미는 홀로 獨立해 있을 때는 하나의 個別 意味單位지만 文章 속에서는 意味構成要素이다. 독립된 의미단위로서의 단어는 여럿의 義素를 未分化的으로 가지고 있는 意味이며, 문장 의미구성요소로서의 단어는 固定된 하나의 義素를 가진다. 이 意味構成要素는 문장 속에서 部分과 部分, 部分과 全體의 有機體的 共起關係를 통한 自己組織으로 의미를 얻는다. 실체명사의 意味領域은 流動的이며 다른 의미구성요소와의 意味的 共起關係로 의미가 轉移될 수 있다. This study aims at laying an methodological foundation upon the provision of more specified semantic components of the substance noun of Korean by analyzing its semantic form and matter. Just as every existing substance of the world has its own features, the meaning of the word signifying its existence also has its own semantic features. The semantic features of the word are products of concepts created in the space of human spirit, and they have abstract semantic quality and quantity. First, the semantic form and matter refers to the unique semantic quality and quantity of a word, which is divided into two semantic atomics, form and matter. Form and mater refer to reference and sense, respectively. Secondly, the semantic domain of the substance noun can be spread in a sentence, and this, in turn, changes its semantic form and matter. Thirdly, the substance noun acts as a semantic constituent of a sentence, forming a partial meaning space in a whole meaning space of a sentence. It gains its own semantic form and matter through the self-organization among partial meaning spaces. Fourthly, the semantic form and matter of a word in isolation is different in semantic quality and quantity from that of a word acting as a semantic constituent of the sentence. A substance noun in isolation is the undivided whole of many sememes, and it gains a single sememe when it is related to other semantic constituents in a specific sentence. Fifthly, semantic form and matter can be divided into form semantic feature and matter semantic feature. The form semantic feature of a substance noun can be subdivided into unit, boundary, division, and continuity. The matter feature of a concrete noun can be dealt with the hierarchy of a semantic domain.

대도시 재생사업의 현실과 과제

최상진(Choi, Sang-Jin),김한수(Kim, Han-Soo) 한국주거학회 2018 한국주거학회 학술대회논문집 Vol.30 No.1

The study is aimed to research the residential area, which is developed according to the procedure of urban renewal projects, and the results of analysis are as follows. First, the maintenance process of the residential area is slightly different according to the change of time, and it is thought that it will affect the asset value. Second, the renewal project is one of the most important factors for the consent of residents. However, since the opinions of the residents may change over time, there are cases where the site itself is lost before the renewal project is carried out. In addition, it also affects the outcome of the projects in deliberation procedures. Third, the renewal projects can be developed only when construction company is determined, but it is a difficult process to decide. Even if the construction company is determined, there are cases where the progress of the project may be canceled by the opinions of the residents or the ability of the construction company.

대구시 정비계획의 변화 실태

최상진(Choi, Sang-Jin),김주현(Kim, Joo-Hyun),김한수(Kim, Han-Soo) 한국주거학회 2018 한국주거학회 학술대회논문집 Vol.30 No.2

This study showed the following matters concerning matters to be considered in establishing the initial rearrangement plan when carrying out the rearrangement project. First, there are many processes that do not go through until the project is completed due to the designation of rearrangement areas, and the possibility of extending the term and running the project may be reviewed again. Second, the first land-use plan that residents want is very different from the consultation between related agencies and departments and the deliberation process of the Urban Planning Commission.. Third, the spatial planning of the housing complex will be changed in consideration of the related department and institutional consultation and the deliberation of the city planning committee, in order to secure additional infrastructure, facility accessibility and utilization. Fourth, institutional devices are needed to be practical deliberations, not theoretical and formal intellectual and deliberative.

정비구역내 거주민들의 주거환경만족도에 관한 연구

최상진(Choi, Sang-Jin),김한수(Kim, Han-Soo) 한국주거학회 2019 한국주거학회 학술대회논문집 Vol.31 No.1

정비구역내 거주민들의 주거환경만족도와 정비사업에 대한 의식 및 의향에 관한 연구

최상진(Choi, Sang-Jin),김한수(Kim, Han-Soo) 한국주거학회 2020 한국주거학회 논문집 Vol.31 No.1

The purpose of this study was to measure the consciousness of residential environment improvement project for residents living in maintenance area. Based on this, I would like to help the data to clarify the contents to be considered in the future residential environment improvement project. For the analysis, we surveyed the residential environment satisfaction level and the residential environment satisfaction level by individual attribute for the residents in the current residential environment maintenance area. In addition, this study examined the interest in the maintenance business and the intention to resettle. In summary, the relationship between resettlement intention after completion of maintenance project and recognition of maintenance project was found to be resettlement as the overall understanding of the maintenance project and the general awareness of the project, such as whether to attend the information session or training. Thus, this study revealed that residential rearrangement projects in locations covering metropolitan areas and their suburb areas have positive impact on resolution of the doughnut effect and supply of houses based on the overall analysis of procedures implemented for areas in Daegu which were legally designated to be rearranged as part of the administrative effort to improve residential environment and secure houses and investigation of public awareness for residents living in such areas.

북한(北韓) ‘말다듬기 사업’의 한자어(漢字語) 관련 대응어(對應語) 연구

최상진 ( Choi Sang-jin ),김진해 ( Kim Jin-hae ) 한국어문교육연구회 2006 어문연구(語文硏究) Vol.34 No.3

이 논문은 북한의 ‘말다듬기 사업’의 주요 대상이었던 漢字(語)가 어떤 對應語로 연결되는지를 실증적으로 분석한 것이다. 분석 결과, 북한의 ‘다듬은 말’ 중에는 漢字의 發音을 그대로 轉寫하거나, 固有語로 바꾸더라도 漢字의 基本 意味를 그대로 반영한 경우가 많았다. 이는 북한의 말다듬기 사업이 直譯의 限界를 쉽게 뛰어넘지 못한 어휘들이 상당히 많다는 것을 말해준다. 분석 결과 한자의 基本 意味를 그대로 대응시킨 어휘 및 漢字音을 그대로 사용한 어휘의 比率이 82%를 넘었다. 따라서 우리는 漢字語 관련 어휘를 대상으로 한 북한의 말다듬기 사업이 漢字語에 대한 意味的 關聯性을 완전히 떨쳐버리지 못하고 있다고 보게 되었다. 또한 우리는 북한의 國語辭典에서 다듬은 말의 변모 양상을 살펴보았다. 이를 통해 ‘다듬은 말’을 실제로 사용하면서 語彙的인 空白이 발견되어 보충하거나, 의미의 明確性을 높이기 위한 것으로 해석하였다. This paper attempts to carry out an experiential analysis on how Chinese words are linked to equivalent words, which was focused on by the ‘Project for Purification of Words' in North Korea. The result shows that 82% of the North Korean ‘purified words’ apply to following two cases: some words used merely their pronunciations from Chinese words and others maintain basic meanings of Chinese words although they were changed to native words. This indicates that there are many changed words by North Korean ‘Project for Purification of Words’ that could not overstep the limit of literal translation. Therefore, we come to a conclusion that words from the ‘Project for Purification of Words’ relate to Chinese words semantically. We also examine the aspects of ‘purified words’ from dictionaries published in North Korea. The analysis shows that the ‘purified words’ are used to supplement the lexical gap and enhance lexical definiteness.

태권도 도장의 서비스품질이 고객만족도 및 전환장벽에 미치는 영향

최상진 ( Sang Jin Choi ) 한국스포츠산업경영학회 2009 한국스포츠산업경영학회지 Vol.14 No.3

본 연구는 태권도장의 서비스품질이 고객만족도 및 전환장벽에 미치는 영향을 규명하여 태권도장의 서비스품질에 대한 중요성을 파악하고, 그 관계를 규명함으로서 태권도장의 마케팅전략 수립을 위한 기초자료를 제공하는데 있다. 본 연구의 대상으로는 경기도 소재에 있는 26개 태권도장을 대상으로 모집단을 선정하여 총 600부의 설문지를 배포하였다. 이 중 회수된 설문지는 560부였으며, 응답이 불성실하다고 판단되는 140부를 제외한 420부의 설문자료가 실제 분석에 이용되었다. 자료처리를 위한 통계방법은 윈도우형 SPSS 12.0 통계패키지를 이용하여 빈도분석, 요인분석, 신뢰도분석, 상관관계분석, 다중회귀분석을 실시하였다. 분석결과 첫째, 태권도장의 서비스품질과 고객만족도 및 전환장벽의 모든 요인은 유의한 상관관계가 있는 것으로 나타났다. 둘째, 태권도장의 서비스품질 중 유형성, 접근성, 안정성 순으로 고객만족도에 유의한 영향을 미치는 것으로 나타났다. 셋째, 태권도장의 서비스품질 중 유형성, 안전성, 접근성, 능력, 신뢰성 순으로 전환장벽에 유의한 영향을 미치는 것으로 나타났다. 넷째, 태권도장 고객만족도의 지도자만족, 프로그램만족 순으로 전환장벽에 유의한 영향을 미치는 것으로 나타났다. This research is that examine the effect on the influence of Taekwondo-gym``s on customer``s satisfaction and switching barrier of service quality to provide basic data to come up with marketing strategy of Taekwondo-gym. The 26``s Taekwondo-gyms that are located on Gyonggi-do area were set and 600 questionnaire were givens as the target of this research. Out of 560 questionnaire that were collected and 140 questionnaire that were uncertain response about consumers. Only 420 questionnaire that were used to analyze the data. As for the statistical data analysis, frequency analysis, factor analysis, reliability test, correlation relative analysis and multiple regression were carried out using SPSS 12.0. As the result of analysis first, service quality and customer``s satisfaction of Taekwondo-gym and switching barrier of all factors were statistically significant correlation. Second, the service quality of Taekwondo-gym significantly influenced in order of Tangibles, Access, Security. Third, the service quality of Taekwondo-gym Tangibles, Security, Access, Competence, Reliability switching barriers in order to affect significant. Forth, Taekwondo-gym meet the leaders of customer satisfaction, the program switches to satisfy the order affects the switching barrier.