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수증기 메탄 개질 반응을 이용한 수소 생산용 Ni-Cr-Al 다공체 지지 촉매의 제조, 기계적 안정성 및 수소 환원 효율
김규식,강태훈,공만식,박만호,윤중열,안지혜,이기안,Kim, Kyu-Sik,Kang, Tae-Hoon,Kong, Man Sik,Park, Man-Ho,Yun, Jung-Yeul,Ahn, Ji Hye,Lee, Kee-Ahn 한국분말재료학회 (*구 분말야금학회) 2021 한국분말재료학회지 (KPMI) Vol.28 No.3
Ni-Cr-Al metal-foam-supported catalysts for steam methane reforming (SMR) are manufactured by applying a catalytic Ni/Al<sub>2</sub>O<sub>3</sub> sol-gel coating to powder alloyed metallic foam. The structure, microstructure, mechanical stability, and hydrogen yield efficiency of the obtained catalysts are evaluated. The structural and microstructural characteristics show that the catalyst is well coated on the open-pore Ni-Cr-Al foam without cracks or spallation. The measured compressive yield strengths are 2-3 MPa at room temperature and 1.5-2.2 MPa at 750℃ regardless of sample size. The specimens exhibit a weight loss of up to 9-10% at elevated temperature owing to the spallation of the Ni/Al<sub>2</sub>O<sub>3</sub> catalyst. However, the metal-foam-supported catalyst appears to have higher mechanical stability than ceramic pellet catalysts. In SMR simulations tests, a methane conversion ratio of up to 96% is obtained with a high hydrogen yield efficiency of 82%.
분말 합금법으로 제조된 Fe-Cr-Al 금속 다공체의 구조, 미세조직 및 기계적 특성
김규식,강병훈,박만호,윤중열,이기안,Kim, Kyu-Sik,Kang, Byeong-Hoon,Park, Man-Ho,Yun, Jung-Yeul,Lee, Kee-Ahn 한국분말야금학회 2020 한국분말재료학회지 (KPMI) Vol.27 No.1
The Fe-22wt.%Cr-6wt.%Al foams were fabricated via the powder alloying process in this study. The structural characteristics, microstructure, and mechanical properties of Fe-Cr-Al foams with different average pore sizes were investigated. Result of the structural analysis shows that the average pore sizes were measured as 474 ㎛ (450 foam) and 1220 ㎛ (1200 foam). Regardless of the pore size, Fe-Cr-Al foams had a Weaire-Phelan bubble structure, and α-ferrite was the major constituent phase. Tensile and compressive tests were conducted with an initial strain rate of 10<sup>-3</sup>/s. Tensile yield strengths were 3.4 MPa (450 foam) and 1.4 MPa (1200 foam). Note that the total elongation of 1200 foam was higher than that of 450 foam. Furthermore, their compressive yield strengths were 2.5 MPa (450 foam) and 1.1 MPa (1200 foam), respectively. Different compressive deformation behaviors according to the pore sizes of the Fe-Cr-Al foams were characterized: strain hardening for the 450 foam and constant flow stress after a slight stress drop for the 1200 foam. The effect of structural characteristics on the mechanical properties was also discussed.
부부문제에서 분노의 유발 원인과 대처 전략에 대한 연구
김규식(Kyu Sik Kim) 영남신학대학교 2009 신학과 목회 Vol.32 No.-
The anger itself is a kind of neutral emotion. However, dysfuctional anger expression in the couple relationship can facilitate severe results such as marital distress. family violence, and divorce. Thus, this study aimed at finding the cause and treatment strategies for anger in marital distress. I found two kinds of angers facilitating marital distress through this study. First, is the dysfunctional behaviors(DB) accelerating partner's anger. Second, is the dysfunctional cognitions(DC) accelerating our own anger. The DB had four main parts: the skill deficiencies of couple communications, problem solving, anger expressions, and aversive control systems. The DC had three main parts: irrational belief, dysfunctional cognitions, and selective perceptions. The effective treatment strategy to eliminate anger in the marital distress was the cognitive behavioral approach(CBA). The main target of the CBA was to change the DB and DC to functional behaviors and cognitions.
김규식(Kyu-Sik Kim) 영남신학대학교 2011 신학과 목회 Vol.36 No.-
As marriage is an institution established by God, there is God's intention in marriage. Husbands and wives should pursue satisfaction and happiness through their marriage life, but human satisfaction and happiness cannot be the essence of marriage. Nevertheless, husbands and wives pursue satisfaction and happiness as crucial conditions of their marriage life mainly because churches have neglected value education on the essence of marriage. The seriousness of contemporary marital distress is looming as a crisis of churches consisting mainly of families. The collapse of a family through divorce is a crisis not only to the family but also to the church. The present researcher assumed that marital distress and divorce are caused by the absence of marital education in churches, and wrote this thesis in order to emphasize that churches should carry out actively marital education based on Christian values. The purpose of this study was to find core values for marital education in Martin Luther's view on marriage. There have been many studies on Luther in Korea, but few of them were about his ideas on family and marital relationship. Thus, this study is expected to trigger various subsequent studies on Luther's understanding of family and husband wife relationship. The researcher analyzed Luther's view on marriage from the viewpoint of God's gift and secularity, and divorce from the viewpoint of God's love and forgiveness. In addition, this study suggested two conditions for maintaining marital stability, which are the vocation of serving the spouse based on God's calling and the office as a pastor and teacher for parenting. Based on the results of this study, lastly, the researcher sorted out and presented core values for church based marital education. Marital education based on the results of this study is expected to have a positive effect on husbands and wives' faith oriented thinking and their enhanced marital satisfaction and stability.
전문상담사 자격검정제도 개선을 위한 국외의 주요 자격제도 연구
김규식(Kyu-Sik Kim) 영남신학대학교 2015 신학과 목회 Vol.44 No.-
The purpose of this study was to study the counseling-related certification systems of representative associations in the U.S. and Canada in order to get implications for improving the counseling specialist certification system operated by the Korean Counseling Association. Ideas obtained from this study are as follows. the Korean Counseling Association needs to make efforts to enhance the benefits of the members who acquired the counseling specialist certificate. Specifically, it is necessary to introduce the liability insurance system for protecting the members from legal problems, property loss and damage, and health-related problems that may happen while providing counseling services. Furthermore, the Korean Counseling Association should publicize the expertise of counseling specialists among insurance companies so that counseling fees charged by counseling specialists may be covered by insurance as in extended health care insurance or accident insurance. It is necessary to establish counseling ‐related undergraduate and graduate curriculums and training courses at institutions certified by the Korean Counseling Association and to give a fast-track certificate to those graduating from the institutions, and to allow those with an equivalent domestic or overseas certificate to get a certificate of the same level through a simplified process. Under the current supervisor system of the Korean Counseling Association, each supervisor engages only in a specific chapter and is trained to supervise supervisees in the chapter, and this limits the supervisors’ training activities. As in the U.S. and Canada, it is necessary for the supervisors to be able to give training to any supervisees in different chapters. Fourth, the conditions for certificate maintenance and renewal need to be diversified flexibly. In the U.S. and Canada, CEU includes not only attendance at the certification education program of an institution but also participation in and holding of workshops, online seminars, hours to prepare dissertation writing, hours to prepare lectures in college, and hours to prepare publishing. Thus, the Korean Counseling Association may consider the conditions for certificate maintenance and renewal in more diverse aspects.
주박 스테이: 다음 세대의 치유를 조력하는 교회 공동체 사례 연구
김규식(Kyu-Sik Kim) 영남신학대학교 2017 신학과 목회 Vol.48 No.-
The purpose of this study was to explore the possibility of the Jubak Stay program of Daegu Wolbae Presbyterian Church as an alternative church model for counseling to heal the pathological symptoms of the next generation. The next generation is the hope of future church, but it is a reality that it is urgent to provide treatment through counseling as many young people nowadays show the pathological symptoms such as suicide, depression, violence, obesity, and disconnection of relationship, etc. The researcher sought to find the root cause of adolescent pathological symptoms in ‘loneliness’. The condition of loneliness comes from the disconnection of the relationship between God and man, resulting in a variety of pathological symptoms. The reasons for the disconnection of human relationship with God were presented through a case study as follows. First, the next generation has different cultural characteristics unlike the current generation, for example, preferring anonymity, and communicating in virtual space, second, the wounds from the relationship with the original family (marital conflict, parental divorce, disconnection of conversation), and third, undifferentiated faith. As the existing Jubak Stay has a name of ‘spending the night with the Lord’, an evaluative analysis and a biblical model (Matthew 15: 29-31) was provided for a healing function. As an alternative, Jubak Stay aims to overcome the problem of loneliness which is the cause of the next generation’s pathological symptoms by installing the following functions. First, participants taking part in Jubak Stay have a positive stroke and have a positive self-esteem for themselves and others. Second, it is possible to confirm the love between parents and children through new reflection on their family relations. Third, it is possible to have the opportunity to change from undifferentiated life to individualistic-reflexive faith.