특집 : 화생방과 공기청정 - 방독면

장경진,Jang, Gyeong-Jin 한국공기청정협회 2011 空氣淸淨技術 Vol.24 No.3

새끼 돼지의 단미증

장경진,Jang, Gyeong-Jin 대한양돈협회 1984 養豚 Vol.6 No.3

개선 실험 자유경계법을 이용한 차체 구조물의 모드합성

장경진,박영필,Jang, Gyeong-Jin,Park, Yeong-Pil 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.6

In the authors' preceeding paper, an improved component mode synthesis (CMS) technique in which experimental data as well as finite-element data are available in sub-systems has been proposed. Thi s technique, called an improved experimental free-interface method (IEFIM), has been proved to be more accurate and more efficient than the conventional experimental CMS method based on McNeal's formulation. It is due to the facts that dynamic residual terms as well as static ones are compensated from experimentally obtained FRFs and that FRFs measured on any frequencies can be used for the compensation. In this paper, the technique is applied to the component mode synthesis of a car body structure. As a result, the applicability of the technique to a large structure is demonstrated.

일반화 자유경계 모드 감도법을 이용한 차체구조물의 모델개선

장경진,박영필,Jang, Gyeong-Jin,Park, Yeong-Pil 대한기계학회 2000 大韓機械學會論文集A Vol.24 No.5

It is necessary to develop an efficient analysis method to identify the dynamic characteristics of a large mechanical structure and update its finite element model. That is because these processes need the huge computation of a large structure and iterative estimation due to the use of the first- order sensitivity. To efficiently carry out these processes, a new method, called the generalized free-interface mode sensitivity method, has been proposed in the authors' preceeding paper. This method is based on substructuring approach such as a free-interface method and a generalized synthesis algorithm. In this paper, the proposed method is applied to the model updating of a car body structure to verify its accuracy and reliability for a large mechanical structure.

자동화와 연결의 시대 일의 교육 연구를 위한 행위자—관계망 이론의 적용 가능성 탐색

장경진(Kyoungjin Jang),장원섭(Wonsup Chang) 한국성인교육학회 2020 Andragogy Today : International Journal of Adult & Vol.23 No.4

이 연구는 자동화와 연결의 시대에 변화하고 있는 일의 교육을 기술하고 해석하기 위한 관점으로서 행위자—관계망 이론(Actor-Network Theory, ANT)이 가진 유용성을 제시하고자 한다. 이에 이 연구는 ANT의 주요 개념과 관점을 소개하고, 관계론적 확장이라는 접근법을 중심으로 일의 교육 연구에 있어 ANT가 가진 시사점과 적용 방안을 모색하였다. 먼저, ANT의 핵심 개념인 행위자—관계망, 인간과 비인간의 행위 능력을 동등한 위치에 놓는 대칭성, 현상의 변화 과정을 설명하는 번역과 번역 과정의 의미를 개관하였다. 나아가, ‘ANT와 그 후(After-ANT)’의 논의를 소개함으로써 ANT의 적용이란 ANT의 용어 자체에 연연하기보다, ANT적 세계관을 연구의 대상이 되는 현상을 기술하는데 적용하는 것임을 밝혔다. 그 후, ANT가 일의 교육에서 사용되던 관계론적 접근이 가진 한계를 극복하는 데 도움이 될 수 있으며, 관계론의 해석력을 더욱 확장하는 차원에서 활용될 수 있음을 논의하였다. 그러나 ANT 논의가 가진 모호함과 난해함으로 인해 ANT적 관점을 연구에 반영하는 것은 여전히 어려운 과제이다. 이에 앞선 연구의 시도와 연구방법론에 대한 논의를 소개함으로써 ANT의 접근성을 높이고자 하였다. This study aims to present the implications of the actor-network theory (ANT) as a perspective for describing and interpreting the education of work, which is facing numerous changes during the era of automation and connectivity. The researchers introduce the main concepts and aspects of ANT and explicate its implications for expanding the explicability of relational approaches in the research on education of work. The meanings of the key ANT concepts, that are ‘actor,’ ‘network,’ ‘translation’ and ‘symmetry’ are explained. Further, the researchers introduce ‘After-ANT approaches to delineate that adopting ANT perspective is not merely adopting the terms of ANT, but utilizing the perspective to describe and critically analyze the subject phenomena. The following section discusses and asserts that ANT can provide insights to expand the implications of the relational approach further. However, due to ANT s ambiguity and difficulty, it remains challenging to adopt the ANT perspective in research. This article attempts to improve the accessibility of ANT by introducing empirical studies that applied ANT in the themes in the education of work. Discussion on methodology follows.

상관분석에 의한 지하역사의 오염발생 특성

장경진(Kyung-Jin Jang),신철용(Cheolyong Shin),이준용(Junyong Lee),한화택(Hwataik Han) 한국실내환경학회 2011 한국실내환경학회지 Vol.8 No.4

Most of the subway stations are located underground and the indoor air quality can be very poor. IAQ tele-monitoring systems (TMS) have been installed at some of subway stations in Seoul to monitor indoor contaminants, such as carbon dioxide, particulate matters and nitrogen oxides. In this paper, we use CO₂, PM₁₀, NO₂ concentration data collected by TMS in one of the underground stations in Line 4. The correlations are analyzed between the concentrations measured at different locations, such as tunnel, waiting room, and platform to identify the source characteristics. The results indicate there are very weak correlations between CO₂-NO₂ and PM₁₀-NO₂ but strong correlation between CO₂-PM₁₀, because both of PM₁₀ and CO₂ are related to the number of passengers. The comparison of PM₁₀ concentrations before and after the installation of platform screen door (PSD) indicates that considerable amount of particulate matters are entrained from tunnel into platform area. The PSD exhibits positive effects on indoor air quality especially on particulate concentrations. In case of NO₂, there is a strong correlation between indoor and outdoor concentrations. The results presented in this paper can be used to control indoor air quality in subway stations more effectively.

수근관 증후군의 초음파 유도하 도침술 1례

장경진(Kyung-Jin Jang) 대한모유수유한의학회 2020 nipple confusion,breastfeeding consultation,IBCLC, Vol.1 No.1

Objectivie: The purpose of this study is to report the effect and safety of Ultrasound-guided Acupotomy on carpal tunnel syndrome. Method: A patient with carpal tunnel syndrome was treated by Ultrasound-guided Acupotomy. For investigating the outcome of the improvement, Tine! s sign, Phalen test, Historical-Objective scale, cross-sectional area were used to measure during treatment. Results: Tinel s sign, Phalen test, Historical-Objective scale were improved after treatment. But cross-sectional area was not improved. Conclusions: Ultrasound-guided acupotomy is effective in improving the symptoms of carpal tunnel syndrome.

장인적 학습 척도 개발 및 타당화 연구

장경진(Kyoungjin Jang),이호진(Hojin Lee),장원섭(Wonsup Chang) 한국성인교육학회 2021 Andragogy Today : International Journal of Adult & Vol.24 No.2

이 연구는 현대 장인들의 일을 통한 배움과 성장의 특징인 장인성(장원섭, 2015) 개념을 바탕으로 장인적 학습 척도를 개발하고 타당화하는 것을 목표로 한다. 장인적 학습 척도를 개발하기 위하여 장인성 및 장인 관련 문헌, 성인교육 및 일터학습 관련 문헌을 바탕으로 내용분석을 실시하고 장인적 학습의 5개 세부요인을 도출하였다. 도출된 5개 요인은 자주적 학습, 학습 집념, 통합적 학습, 열린 학습관계망, 도구를 통한 학습이다. 내용분석 결과를 바탕으로 제작된 세부요인, 조작적 정의, 측정 문항을 바탕으로 2차에 걸쳐 전문가 대상 설문을 실시하였으며, 설문을 통해 수집된 의견을 바탕으로 척도를 수정하였다. 이후 각 요인 당 4문항씩 총 20문항으로 된 설문을 제작하여 219명의 직장인을 대상으로 예비조사를 실시하였다. 요인분석을 실시한 결과, 도출된 5개 세부요인의 구조가 적합한 것으로 분석되었다. 요인 계수와 요인적재치를 기준으로 일부 문항을 삭제, 수정하여 525명의 직장인을 대상으로 본조사를 실시하였다. 본조사 요인 분석 결과, 모든 문항이 요인 계수 기준을 충족하였으나 2개 이상의 요인에서 요인적재치가 높게 나온 3개 문항을 삭제하여 총 17문항으로 구성된 척도를 도출하였다. 장인적 학습 최종 척도와 장인적 학습의 결과 변인인 장인적 영향력 간의 상관관계를 분석하여 준거 관련 타당도를 확보하였다. 연구결과를 토대로 이 연구의 이론적, 실천적 활용방안과 척도의 타당성, 적용성을 확인하기 위한 향후 연구 방향을 제안하였다. This study aims to develop and validate the Masteristic Learning Scale (MLS) based on the concept of Masterity (Chang, 2015), which refers to the characteristics of modern masters. A content analysis of relevant literature and theories was conducted, resulting in five dimensions of Masteristic Learning: Self-driven Learning, Tenacity of Learning, Integrative Learning, Open Learning Network, and Tool-focused Learning. The initial version of the questionnaire was developed according to the content analysis result and was revised based on the two open-question expert surveys. The first round of validity and reliability test was conducted based on the data from a sample of 219 working adults. The researchers revised the questions that did not meet the factor coefficient and factor loading requirements. The second round of validation was conducted based on the data from a sample of 525 working adults. The result suggested that the scale has a valid construct and that all questions exceed the required factor coefficient. Three questions did not meet the factor loading requirement and were removed from the final version of the scale. As a result, this study presents an empirically validated instrument that consists of 5 factors and 17 questions, which was validated through concurrent criterion-related validation with Masteristic Influence. Discussions about the theoretical and practical implications of the MLS and suggestions for future research were followed.

교육목회에 있어서 설교자의 역할

장경진(Kyuongjin Jang) 한국기독교교육정보학회 2013 기독교교육정보 Vol.39 No.-

4차 산업혁명시대 뷰티산업에 나타난 ICT융합의 사례분석

장경진 ( Kyoung-jin Jang ),장미숙 ( Mee-sook Chang ),한수연 ( Soo-yeon Hahn ) 한국미용학회 2021 한국미용학회지 Vol.27 No.6

In this study, core technologies applied to the beauty industry (hair, makeup, skin care, nail) in the era of the 4th industrial revolution and the transition of industrial paradigm of literature review was performed. Based on this, analysis and prediction of future trends were performed through case analysis of ICT convergence applied to the beauty industry. As a result, it could be confirmed that these core technologies are progressing in the direction of improving the value of the services provided in the past through convergence. Therefore, it was possible to confirm through case analysis that the direction of the beauty industry was changing from the existing function-oriented professional service concept to customer-centered personalization, prediction, prevention, and participation. This study expands the scope of research on convergence with core technologies of the 4th industrial revolution at the conventional corporate level and expands it to the beauty industry to analyze the future through convergence with core technologies from the beauty business perspective. There are implications for predicting the direction of In addition, by categorizing the beauty industry into four types (hair, makeup, skin care, and nail), specific future directions for each sub-area are presented, thereby presenting practical implications that can be immediately applied to the workplace.