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Sungyup Kim,Seong M. Kim,Sungjoon Park,Eui S. Jung 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5
Product developers nowadays have to consider not only the technological satisfaction of consumers but their affective needs as well. These affective needs are greatly affected by the appearance and performance functions of the product, which are simply called in this study appearance-based affection and performance-based affection. This study examined these two affective factors that must be considered while designing mobile phones. Extracted relationship between the two factors was processed in five steps. The first step includes gathering potential affective expressions that can be need to evaluate the levels of consumer’s affection for mobile phone design in the pool of adjectives. In the second step, a simple frequency analysis was done from a consumer survey to extract frequently used affective expression. The third step was to extract primary tasks for mobile phones and to perform an experiment or a survey for the evaluation of mobile phones using those tasks the representative affections were then extracted in the fourth step based on factor analysis. Finally, using ANOVA, the extracted representative affections were prioritized to draw a relationship between appearance-based affection and performance-based affection. The result of this study suggests each of appearancebased affections and performance-based affections that should be considered first in designing mobile phon.
Sungyup Kim,Sungjoon Park,Sungmin Kim,Eui S. Jung 대한인간공학회 2010 大韓人間工學會誌 Vol.29 No.4
Product developers nowadays must consider not only the technological satisfaction of consumers but their affective needs as well. These affective needs are greatly affected by the appearance and performance functions of the product, which are simply called in this study appearance-based affection and performance-based affection. This study examined these two affective factors that must be considered while designing mobile phones. Extracted relationship between the two factors was processed in five steps. The first step includes gathering potential affective expressions that are needed to evaluate the levels of consumer's affection for mobile phone design in the pool of adjectives. In the second step, a simple frequency analysis was done from a consumer survey to extract frequently used affective expression. The third step was to extract primary tasks for mobile phones and to perform an experiment or a survey for the evaluation of mobile phones using those tasks. Representative affective factors were then extracted in the fourth step based on factor analysis. Finally, using ANOVA, the extracted representative affective factors were prioritized to draw a relationship between appearance-based affection and performance-based affection. The result of this study suggests each of appearance-based affections and performance-based affections that should be considered in designing mobile phones.
이희수,Jung Sungyup,이성우,Kim Yong Tae,이제찬 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.10
Municipal solid waste (MSW) management is an essential municipal service. Proper waste treatment is an important part of the waste management. Thermocatalytic waste upcycling has recently gained great interest and attention as a method to extract value from waste, which potentially substitutes traditional waste treatment methods. This study aims at demonstrating the potential for thermocatalytic waste upcycling using spent disposable wipes as an MSW surrogate. Two different Ni/Al2O3 catalysts were prepared, treated under two different atmospheres (N2 and CO2). The catalyst treated in N2 (Ni/Al2O3-N2) exhibited a higher surface metallic Ni site than the catalyst treated in CO2 (Ni/Al2O3-CO2). The use of the Ni/Al2O3-N2 increased the yield of gas pyrolysate and decreased the yield of byproduct (e.g., wax), compared with no catalyst and the Ni/Al2O3-CO2. In particular, the Ni/Al2O3-N2 catalyst affected the generation of gaseous hydrogen (H2) by increasing the H2 yield by up to 102% in comparison with the other thermocatalytic systems. The highest H2 yield obtained with the Ni/Al2O3-N2 was attributed to the most surface metallic Ni sites. However, the Ni/Al2O3-N2 catalyst led to char having a lower higher heating value than the other catalysts due to its lowest carbon content. The results indicated that the reduction treatment environment for Ni/Al2O3 catalyst influences thermocatalytic conversion product yields of spent disposable wipes, including enhanced H2 production.
제2의 직업을 찾은 사람들의 변화 욕망과 삶의 전환에 나타난 평생교육적 함의
정희선(Heesun Jung),이성엽(Sungyup Yi) 한국교육컨설팅코칭학회 2022 교육컨설팅코칭연구 Vol.6 No.2
본 연구는 계획된 우연이라는 생애 사건을 만난 연구참여자의 변화 욕망의 근원을 탐색하고, 그들이 찾은 가치 탐구에 목적이 있다. 이를 위해 5인의 인터뷰 자료를 분석하여 그들의 전환 과정에 나타난‘변화 욕망’을 분석하고 변화와 성장을 살펴봄으로 평생교육과의 연관관계를 탐색하였으며, 결과는 다음과 같다. 첫째, ‘우연적 사건’이라는 타자와의 관계에서 형성된 본질적인‘욕망’은 꿈에 대한 도전으로 자신의 길을 만드는 새로운 시작이자 행위 에너지 발견을 의미하는‘변화 욕망’이라 할 수 있으며, 경험에 대한 사유, 직업 전환 과정에서 나타난 반성적 성찰, 새로운 학습 참여는 성장을 촉진한다. 둘째, ‘우연적 사건’은 ‘삶의 전환’요인으로 그들의 도전은 능력과 역량 개발, 변화와 성장을 이끄는 동력으로, 주어진 환경에서 자기격려와 인지적 전략을 세우고 사건을 긍정적으로 바라보는 목적의식으로 나타났다. 직업 전환을 통해 상황을 거시적으로 보는 안목과 자신을 바라보는 힘을 키우고, 자신의 직업에 대한 목표와 정체성을 찾아가게 하였다. 이러한 과정 속에서 그들은 자신만의 문화와 신념의 중심을 만들고 타인을 인식하고 동반 성장을 위한 역할에 의미를 부여하며, 새로운 가치를 만들기 위해 자의적으로 학습을 선택하였다. 인간은 다양한 환경 속에서 행복한 삶을 이루기 위해 변화를 모색하며 개방적이고 더욱 성숙한 접근방법으로 내적 변화를 추구한다. 이러한 내적 변화를 돕는 전환학습은 성인 학습에서 의미가 크다. 또한, 새로운 삶의 전환을 끊임없이 모색하며 나타나는 끊임없는 학습 욕망을 이루기 위한 학습 참여는 평생교육적 가치가 있다. The purpose of this study is to explore the source of the participants desire to change when they meet a life event called planned coincidence and to explore the value they seek. By analyzing the interview data of five people, the‘desire for change' that appeared in their conversion process was analyzed, and the relationship with lifelong education was explored by examining change and growth. First, the essential‘desire' formed in the relationship with others called ‘accidental event' is a challenge to dreams. It can be said to be a‘desire for change', which means a new start to creating a path and discovering action energy. Reasons for experience, reflective reflection in the process of job transition, and participation in new learning promote growth. The second factor of‘life transition' is‘accidental event'. Their challenges are the driving forces that lead to ability, competency development, change and growth, and it was found that they established self-inspection and cognitive strategies in a given environment, and established a sense of purpose by looking at events positively. Job transition fosters a macroscopic eye and the power to look at oneself, and allows them to find goals and identities for their jobs. In addition, they make their own culture and beliefs, recognize others, attach meaning to the role for shared growth, establish a sense of purpose, and arbitrarily choose learning to create new values. Humans seek change to achieve happy lives in various environments and pursue internal change with open and more mature approach. In short, transitional learning that helps inner change is significant in adult learning. In addition, participation in learning to achieve the constant learning desire that appears by constantly seeking a new life transition has lifelong educational value.
이산화탄소 활용 촉매 열분해를 통한 폐섬유의 고부가 가치화
권도희 ( Dohee Kwon ),정성엽 ( Sungyup Jung ),이상윤 ( Sangyoon Lee ),권일한 ( Eilhann E. Kwon ) 한국폐기물자원순환학회(구 한국폐기물학회) 2021 한국폐기물자원순환학회 춘계학술발표논문집 Vol.2021 No.-
합성 섬유의 발명 이후 우리의 삶의 질은 향상되었다. 그러나 합성 섬유는 생분해성이 없고 업사이클 및 재활용이 어려우므로 누적 생산량과 처리량은 중요하다. 섬유를 세탁하는 과정에서 신흥 오염물로 간주하는 미세 플라스틱이 환경으로 방출된다. 미세 플라스틱의 공급원 감소를 위한 수단으로 이 연구는 폐섬유를 부가가치 제품으로 전환하는 신속한 처리 플랫폼을 제안한다. 이를 위해 폐섬유의 촉매 열분해를 수행했으며 더욱 환경 친화적인 공정을 위해 폐섬유 열분해의 원료로 이산화탄소를 사용했다. 이산화탄소 환경에서 폐섬유의 열분해 결과, 합성 가스와 메탄이 생성되었으며 이산화탄소는 폐섬유의 열분해로 인해 발생한 휘발성 화합물과의 기상 반응을 통해 추가적인 일산화탄소를 생성했다. 반응 속도를 촉진하여 더 많은 양의 합성 가스를 생성하기 위해 코발트 기반 촉매를 이용하여 촉매 열분해를 수행했다. 이산화탄소를 이용한 비촉매 열분해보다 촉매 열분해는 수소와 일산화탄소의 생산량이 각각 3배와 8배 더 높았다. 또한, 이 공정은 촉매 비활성화를 억제했으며 80 wt. % 이상의 폐섬유를 합성가스와 메탄으로 전환했다. 이산화탄소를 원료로써 사용하여 일산화탄소를 더 많이 생성할수록 벤젠 유도체 및 다환방향족 탄화수소와 같은 유해 화학종의 형성을 최소화하는 효과적인 수단을 제공한다.