CHECKMATE$^{TM}$를 이용한 일일 출력 검증의 유용성 평가

조한상,남상수,박혜진,김미화,박안태,Cho, Han-Sang,Nam, Sang-Soo,Park, Hae-Jin,Kim, Mi-Hwa,Park, An-Tae 대한방사선치료학회 2011 대한방사선치료학회지 Vol.23 No.1

Purpose: In this study, we tried to check the usefulness of two Linear Accelerators, Clinac IX and 21EX (Varian, Palo Alto, CA), which are equipped in Ajou Medical Center. From 2008 to 2010, we evaluated the error range of Absolute Dose based on the daily output, which was measured by CHECKMATE$^{TM}$ (Sun Nuclear, Melbourne, FL). Materials and Methods: For Daily Q.A, photon beams of two linear accelerators, 21EX and IX (6 MV and 10 MV, respectively) were measured daily by using CHECKMATE$^{TM}$ just before the treatment began, while the absolute dose was measured biweekly by using water phantom. We analyzed the data of measured values from the daily Q.A and the absolute dose from 2008 to 2010 for 21EX, and from 2009 to 2010 for IX. We utilized Excel 2007 (Microsoft, USA) to evaluate Average, Standard deviation and Confidence level of the data. Furthermore, in order to check the measured values of CHECKMATE$^{TM}$ and the significance of absolute dose, each error value was compared and analyzed. Results: During the observation period, the output of two equipment's absolute dose increased in process of time and in both 6 MV and 10 MV, there was a similar increasing trend. In addition, the error rate of the measured value of CHECKMATE$^{TM}$ and the value of absolute dose were under 0.34, which means that there is a similarity relationship between the two measured values. After checking that the measured value of CHECKMATE$^{TM}$ increased, We measured the absolute dose to adjust that. When the error range was close to 2~3%, the number of changing the output was four for 21EX and three for IX. Conclusion: As a result of measuring and analyzing the daily output changes for two years by using CHECKMATE$^{TM}$, we could find that there is a significance between the output which we should obey during Q.A, and the measured value of absolute dose within the error tolerance of 2~3%. Thus, the use of CHECKMATE$^{TM}$ can be positively considered for more efficient and reliable daily output verification of linear accelerator. It can also be a good standard for other medical centers to understand the trends of linear accelerator and to refer to for the correction of each output.

영산 조용기 목사의 영적 식별 사례 연구

조한상 ( Cho¸ Han Sang ) 한세대학교 영산신학연구소 2021 영산신학저널 Vol.- No.58

영적 식별이란 하나님의 뜻이 어디에 있는지 알아보는 유용한 도구이다. 복잡하고 힘든 세상을 살아가고 있는 현대인들은 매 순간 다양한 영들의 움직임 가운데 놓여 있다. 따라서, 우리는 하나님의 영의 인도하심을 따라 선택하기도 하지만, 또 다른 경우에 악한 영에 휩쓸리는 경우도 종종 있다. 이러한 순간 식별은 하나님의 뜻이 무엇인지 알도록 도움을 준다. 그동안 영적 식별은 그 중요성에도 불구하고 개신교 영역에서 소홀히 다루었지만, 이는 초대교회로부터 현대에 이르기까지 유구한 전통을 지닌 영적 유산이다. 그러므로 본 논문은 영산 조용기 목사의 생애에 나타난 사례를 중심으로 그의 영적 식별을 다루었다. 복음 전도자인 영산 조용기 목사는 성령님과 동행하여 희망의 메시지를 선포하여 세계 최대 교회를 세운 복음 전도자이다. 그는 여의도순복음교회에서 50년 동안 사역하면서 영적 식별을 경험하였고, 하나님의 인도하심의 방법을 배웠다; 하나님의 말씀, 뜨거운 갈망, 분명한 이해와 평안, 환경, 마지막으로 꿈과 환상을 통해서 하나님의 뜻을 알아갔다. 이는 영적 거장들인 이냐시오 로욜라 및 조나단 에드워즈의 식별 규범에 일치하는 것이며, 현대 영성학자인 엘리자베스 리버트의 이론과도 일치함을 알 수 있다. 코로나19 이후, 우리는 삶의 많은 변화를 경험하였고, 영적 혼돈과 다양한 선택과 결정을 해야 하는 상황에 직면하여 있다. 모든 것이 급변하는 상황에서, 한국교회 목회자와 성도들은 영산 조용기 목사의 영적 식별 사례를 나침반으로 삼아 사용한다면, 각자의 삶의 자리에서 직면한 식별의 이슈를 해결하는 데 도움이 되리라고 본다. 한국교회 목회자와 성도들이 각자 개인의 생각과 가치관에 근거한 것이 아니라 성서적, 역사적 근거 위에서 하나님의 뜻을 식별하여 더 성숙한 그리스도인과 공동체로 세워질 수 있기를 소망하는 바이다. Spiritual discernment is a useful tool to find out where God’s will is. Modern people living in a complex and difficult world are in the midst of various movements of spirits every moment. For that reason, sometimes our choices are made in accordance to the guidance of God’s spirit, but, in other cases, we are often swept away by evil spirits. Spiritual discernment, therefore, helps us know what God’s will is. It is a spiritual heritage that has a long tradition from early churches to modern times. However, spiritual discernment has been neglected in the Protestant realm despite its importance. This paper discusses the principles of spiritual discernment in Youngsan’s life. Reverend Youngsan Yonggi Cho is an evangelist who had accompanied the Holy Spirit to proclaim a message of hope and had built the world’s largest church. He had experienced spiritual discernment in his 50 years ministry at the Youido Full Gospel Church, and then learned the methods of God’s guidance; God’s word, burning desire, understanding and peace, evidence through circumstances, and dream and vision. This guidance is consistent with the discernment rules of spiritual masters such as Ignatius Loyola and Jonathan Edwards. Furthermore, it is consistent with the theory of modern spiritualist Elizabeth Liebert. After the outbreak of COVID-19, we have experienced lots of change in our lives and then confronted spiritual chaos and situations where we have to make various choices and decisions. In those situations where everything changes rapidly, it will be helpful for pastors and members in the Korean churches to solve the various issues in their life settings using Youngsan’s case of spiritual discernment as a compass. I hope that they can be more mature Christians and communities by discerning God’s will on a biblical and historical basis, not based on individual thoughts and values.

전기로 환원슬래그 Up-cycling

조한상(Han Sang Cho),문영범(Young Bum Mun),문원식(Won Sik Moon),박대철(Dae Cheol Park),김형철(Hyeong Cheol Kim),최형국(Hyun Kook Choi) 大韓環境工學會 2015 대한환경공학회지 Vol.37 No.3

친환경 토목/건축소재가 각광받는 시대가 도래되면서 시멘트 산업에서의 철강슬래그 등의 산업부산물 up-cycling 사례가 계속 증가되는 추세이다. 본 연구에서는 국내.외적으로 재활용 사례가 거의 없는 서냉 전기로 환원슬래그의 up-cycling 용도 개발을 위한 목적으로 토양환경보전법 시행규칙 별표 3의 ‘토양오염우려기준’에 근거하여 환원슬래그에 대한 기초적인 환경위해성 평가를 수행하여, 환경적 측면에서의 사용 안전성을 검증하였다. 아울러 주요 온실가스 배출원인 시멘트 생산량을 줄이기 위한 방안으로, 보통 포틀랜드 시멘트 및 고로수쇄슬래그 시멘트에 혼화재로서 환원슬래그를 일부 치환한, 2성분계 및 3성분계 혼합시멘트를 제조하고, 각 혼합시멘트 모르타르의 압축강도를 평가하였다. 압축강도 평가 결과, 환원슬래그를 최대 5 wt%까지 치환한 두 종류의 혼합시멘트 모르타르들의 재령일 28일에서의 압축강도는 무치환시멘트 경우와 유사하거나 약 1.1배 우수함을 확인하였다. This study investigated the environmental risk for up-cycling of air-cooled ladle furnace slag (LFS) and evaluated the mortar compressive strength of binary and ternary blended cements using LFS of 3, 5, 10 wt%. Based on the Soil Environment Conservation Act standard, there was no environmental risk of the up-cycling of LFS. Results of mortar compressive strength assesment showed that the compressive strength of two blended cements using LFS of lower than 5 wt% was about 1.1 times superior to that of un-substituted cement (ordinary portland cement, OPC); however the compressive strength of those with LFS of 10 wt% decreased with 10% compared with that of OPC.

6자유도 병렬 공작 기계를 위한 동역학 모델링

조한상(Han-Sang Cho),김종원(Jongwon Kim) 한국정밀공학회 1997 한국정밀공학회 학술발표대회 논문집 Vol.1997 No.11월-2

프리드리히 클라인의 제도보장 이론

조한상 ( Han Sang Cho ) 청주대학교 법학과 2007 청주법학 Vol.29 No.-

헌법사 접근방법론

조한상 ( Han Sang Cho ) 청주대학교 법학과 2008 청주법학 Vol.30 No.2

인공지능과 법, 그리고 논증

조한상 ( Han-sang Cho ),이주희 ( Joo-hee Lee ) 한국법정책학회 2016 법과 정책연구 Vol.16 No.2

Artificial Intelligence has developed very quickly over last 10 years. Sooner or later it will be an alternative means rather than an aid for humans. The legal profession such as judges or lawyers is not no exception. Law and AI was in very close relationship for a long time. The law has provided not only various basic theories for the development of AI, but also a test of AI capabilities. Furthermore, the law can be said to go ahead in the field of commercialization of AI. AI has become a real problem to be judged objectively in the legal study. Especially the way the legal experts do have a legal argumentation is an important object of consideration in the area of AI and law. Therefore, this paper is to review the theme of AI and law in connection with a legal argumentation. This discussion will examine the history and current status of research on AI and Law and increase the understanding of the legal activities of AI, so that it would helpful to develop the discussion. A research on AI presupposes an understanding of argumentation which is based on the perception of the investigation, context, and procedures. And the AI research uses various argumentation methods. In particular, it was confirmed that case-based argumentation and rule-based argumentation have developed a lot. The most desirable thing is to create a method to cover the aspects of the rhetoric, contexts, procedures based on the rule-based argumentation. Case-based argumentation is flexible and comprehensive, but not logical and not strict. Rule-based argumentation is the opposite. Therefore, one should move in a direction that combines advantages of these two argumentations. The study on AI and law is now gradually bearing its fruit. Academic researches are also developing rapidly. AI research is being conducted actively, for example in the United States, the European countries such as the Netherlands, Belgium and Italy and Japan. What about Korea? Korea is known as a powerful country in IT. But there is not a big interest in AI. The studies on AI leave much to be desired. What is needed in this situation is in-depth discussion that is conducted by experts in the area of AI and law. This will serve as an impetus to the study on AI and law in Korea.

기본권의 효력 -기본권의 수규자, 주장 및 관철의 문제

조한상 ( Han Sang Cho ) 청주대학교 법학과 2010 청주법학 Vol.32 No.2

This report dealt with the problem of Fundamental Rights` Effects that is one of the main theme in the area of general Fundamental Rights theory. This problem have made much complexity and confusion. Accordingly, I tried to simply and arrange the theories with dominant opinions, instead of making a new theory. We have thought that the problem of Fundamental Rights` Effects is the same theme as the problem of Fundamental Rights` objects. However, I don`t agree with it. ``Effects`` has comprehensive meanings, and Fundamental Rights` Effects should cover the problem of claiming and realization of the Fundamental Rights. Many texts that were related to Fundamental Rights theory have omitted these problems. Traditionally, the Fundamental Rights` effect on the state has recognized widely. The claiming and realization of the Fundamental Rights in the state area are fulfilled practically on the one hands. They are actualized through the courts on the other hands. Especially, the courts realize the Fundamental Rights with civil actions, criminal actions, administrative litigations and constitutional litigations. In these lawsuits, the claiming of the Fundamental Rights is sometimes explicit, but othertimes implicit. The Fundamental Rights` effect on the private people has been approved because of the practical necessity as well as the theoretical consent about the Fundamental Rights` objective character. Claiming of the Fundamental Rights among the private people are fulfilled practically and actualized through the courts. In many case, civil action is used for this purpose, but has many problems because this can make conflicts with the principal of private autonomy. Many unique theories have been created to keep harmony between the Fundamental Rights and private autonomy. Partially, we can find many cases that criminal actions, administrative litigations and constitutional litigations are used to actualize the Fundamental Rights.

전기로 환원슬래그를 제조 원료로 사용한 개량형 C₁₂A₇ 광물계 급결제 및 성능 평가

조한상 ( Han Sang Cho ),황봉춘 ( Bong Choon Hwang ),문원식 ( Won Sik Moon ),박대철 ( Dae Cheol Park ),조남섭 ( Nam Sup Cho ) 한국폐기물자원순환학회 2015 한국폐기물자원순환학회지 Vol.32 No.2

This laboratory study showed the performance evaluations of a improved C₁₂A₇ based mineral accelerator (I-CA) by both mortar and shotcrete tests. Performance of I-CA as a shotcrete accelerator was excellent by KCI-SC-102, which is a Korean specifications of shotcrete accelerator. In addition, I-CA showed equal qualities to the setting time and the compressive strength when compared those of the existing C₁₂A₇ based mineral accelerator (CA). The I-CA was manufactured with 40wt.% of electric arc furnace reducing slag, 24wt.% of lime, and 36wt.% of bauxite, indicating that the commercialization of I-CA contributed to recycle electric arc furnace reducing slag and to reduce the manufacturing cost of C₁₂A₇ based mineral accelerator due to the use a cheap raw material(electric arc furnace reducing slag), and to reduce the greenhouse gas emission due to the reductions in usage of lime and bauxite.

비스용 병렬형 하이브리드 동력전달계의 개발(11) 제2편 : 자동차변속기가 장착된 하이브리드 차량의 향상된 변속 제어 알고리등 개발

조한상(Han Sang Jo),조성태(Sung Tae Cho),이장무(Jang Moo Lee),박영일(Yeong Il Park) 한국자동차공학회 1999 한국 자동차공학회논문집 Vol.7 No.5