소아의 외상성 췌장 손상의 수술적 치료

조재형,김현영,정성은,박귀원,Cho, Jae-Hyung,Kim, Hyun-Young,Jung, Sung-Eun,Park, Kwi-Won 대한소아외과학회 2013 소아외과 Vol.19 No.2

Debates exist about the appropriate treatment for pancreatic trauma in children. We intended to examine the safety of the operation of pancreatic trauma in children. This is a retrospective study of 13 patients, younger than 15, who underwent surgery for pancreatic trauma, between 1993 and 2011 in Seoul National University Children's Hospital. Medical records were reviewed for mechanism of trauma, clinical characteristics, radiological findings, operation and outcomes. Organ injury scaling from the AAST (American Association for Surgery of Trauma) was used. All injuries were caused by blunt trauma. Patients with grade III, IV, and those who were difficult to distinguish grade II from IV, underwent surgery due to severe peritonitis. Three patients with grade II were operated for reasons of mesenteric bleeding, tumor rupture of the pancreas, and progression of peritonitis. Distal pancreatectomy was performed in 10 patients and subtotal pancreatectomy and pylorus preserving pancreaticoduodenectomy in 1 patient each. The remaining one underwent surgical debridement because of severe adhesions. The location of injury, before and after operation, coincided in 83.3%. The degree of injury, before and after the operation, was identical in all the patients except for those who were difficult to tell apart grade II from grade IV, and those cannot be graded due to severe adhesion. Postoperative complications occurred in 23.1%, which improved with conservative treatment. Patients were discharged at mean postoperative 12(range 8~42) days. Even though patients with complications took longer in time from diagnosis to operation, time of trauma to operation and hospital stay, this difference was not significant. In conclusion, When pancreatic duct injury is present, or patient shows deterioration of clinical manifestation without evidence of definite duct injury, or trauma is accompanied by other organ injury or tumor rupture, operative management is advisable, and we believe it is a safe and feasible method of treatment.

마찰교반용접 전산모사를 이용한 강도, 집합조직변화 고찰

조재형,이창길,송상우,강정윤,Cho, Jae-Hyung,Lee, Chang-Gil,Song, Sang-Woo,Kang, Chung-Yun 대한용접접합학회 2011 대한용접·접합학회지 Vol.29 No.5

부동산 다속성 통합 검색 시스템 개발

조재형(Jae-Hyung Cho) 한국전자거래학회 2009 한국전자거래학회지 Vol.14 No.3

본 연구에서는 매수인이 부동산을 검색할 때, 매수인의 다양한 성향을 고려할 수 있는 새로운 검색 시스템을 제안한다. 이를 위해 부동산 가격에 영향을 미치는 요인들을 분석한 뒤, 지역요인 및 개별요인으로 분류하였다. 다요소 의사결정(Multi-attribute Decision Making) 알고리즘을 통해 매수인이 입력한 검색조건을 분석하여 가중치를 부여하고, 부동산 후보지간 엔트로피 척도를 통해 최적의 부동산 후보지를 도출하도록 설계하였다. 본 검색 시스템의 효용성을 평가하기 위해 부산지역의 실제 부동산 정보를 이용하여 실험을 진행하였다. 실험결과, 본 다속성 통합 검색 시스템은 매수 아파트 검색 시 지역분석과 개별분석을 용이하게 해 주었다. 또한 한번 검색으로 여러 지역의 부동산 후보들을 비교분석함으로써 매수인의 탐색비용을 절감시킬 수 있었다. This study presents a new retrieval system developed to consider various preferential requirements for buyers in the real estate market. The paper analyses essential factors affecting the price of real estate and then a set of factors are classified by region-related factor and individual-related factor. After endowing the buyer’s selected factors with weights in the retrieval system, the optimal solutions have been drawn by comparing with the others through an entropy measure of Multi-attribute Decision Making. This retrieval system is applied to the Busan real estate market to estimate the solutions of retrieval. Evaluation results indicate that the retrieval system can provide useful information to analyse the price determination factors of real estate, as well as to save the searching cost of the buyers.

직접 메탄올 연료전지용 막-전극 접합체의 설계 인자에 관한 연구

조재형(Jae Hyung Cho),황상엽(Sang Youp Hwang),김수길(Soo-Kil Kim),안동준(Dong June Ahn),임태훈(Tae-Hoon Lim),하흥용(Heung Yong Ha) 한국청정기술학회 2007 청정기술 Vol.13 No.4

역공학(Reverse Engineering)을 위한 자유곡면 형상의 NURBS Approximation

조재형(Jae Hyung Cho),조명우(Myung-Woo Cho) Korean Society for Precision Engineering 2002 한국정밀공학회지 Vol.19 No.8

신경망의 보상학습기능을 이용한 퍼지규칙의 자동생성기법

조재형(Jae Hyung Cho),윤소정(So Jeong Youn),오경환(Kyung Whan Oh) 한국지능시스템학회 1998 한국지능시스템학회논문지 Vol.8 No.3

온라인 티켓 재판매 시장에서의 Dynamic Pricing 협상모델

조재형(Jae-Hyung Cho) 한국전자거래학회 2009 한국전자거래학회지 Vol.14 No.4

다수의 구매자와 판매자가 존재하는 경매분야에서 효율적인 협상에 대한 새로운 에이전트 협상방법론을 제시하였다. 경매문제를 게임이론으로 재 정의하고 이를 에이전트 협상에 적용하여, 온라인 티켓 재판매 시장 문제에 적용하였다. 본 에이전트를 적용한 결과 모든 구매자가 만족할 수 있는 내쉬균형을 보이고, 구매자와 판매자의 조합이 파레토 최적임을 보여주고 있다. 특히 본 에이전트 협상을 적용할 수 있는 새로운 비즈니스 모델을 수립하고, 에이전트 협상 진행 시 필요한 도메인과 프로세스를 온톨로지로 구현하였다. This study has tried to suggest a new model that can effectively redistribute the tickets in the online ticket resale market, while suggesting a new allocation mechanism based on an agent negotiation. To this end, this study has analyzed an auction in the online ticket resale market through Game theory. As a result of new agent mechanism, it has been proved that the price stability of ticket resale market leads to an increase. An agent negotiation helps to stabilize the ticket prices that are usually inclined to rise at auction, benefiting all the participants in the negotiations, consequently showing a Pareto solution. Especially, a framework for a negotiation process is suggested and domain and processes ontology are designed interrelatedly. With this modeling, a possibility of Ontology based agent negotiation is suggested.

가중이동평균법을 이용한 케이블TV 광고시장에 대한 예측모형 개발

조재형 ( Jae Hyung Cho ),김호영 ( Ho Young Kim ) 한국정보시스템학회 2016 정보시스템연구 Vol.25 No.2

Purpose: This study suggests the development of forecasting model for local cable TV advertisement. In order to verify the expected effect of the suggestion, using the causal loop map of System Dynamics, the factors affecting the prospects of cable TV commercial market were divided into 5 groups. Then targeting 97 people involved in the cable TV commercial market in Busan, Ulsan, and Gyeongnam, a survey was conducted on their perception of the current status of local advertisement market and future prospect. Design/methodology/approach: The analysis of the collected data shows that workers in advertising and advertisers perceive the influence of cable TV as an advertising media to be high, while clearly understanding the problems of cable TV commercial market. Based on this the effects on the prospects of cable TV commercial market were analyzed and a forecasting method called Weighted Moving Average was applied. In order to improve accuracy of the added value of Weighted Moving Average, the 5 factors were divided into qualitative factors and quantitative factors, and using Multi-attribute Decision Making method, all the factors were normalized and weighting factors were deduced. The result of simulating the prospects of cable TV commercial market using Weighted Moving Average, both qualitative and quantitative factors showed downward turn in the market prospect for the following 10 years. Findings: The result reflects generally negative perception of advertisement viewers about the prospects of cable TV commercial market. Compared to the previous studies on domestic cable TV commercials that focused on policy suggestions and surveys on perception of current status, this study has its significance in that it used scientific method and simulation for verification.

에이전트 협상기반의 온라인 티켓 재판매 모델

조재형 ( Jae Hyung Cho ) 한국시스템다이내믹스학회 2008 한국시스템다이내믹스 연구 Vol.9 No.1

요한복음의 도마와 몸의 부활에 대한 논쟁

조재형(Jae Hyung Cho) 한국기독교학회 2020 한국기독교신학논총 Vol.116 No.-

이 논문은 요한복음에 나오는 디두모 도마에 대한 묘사를 통해서 요한공동체와 도마공동체가 가지는 몸에 대한 신학의 차이를 살펴본 후, 도마 영지주의 문서들(도마복음, 용사 도마의 책, 도마행전)에서 이러한 차이가 어떻게 강화되는가를 편집비평과 문학비평을 사용하여 연구한다. 공관복음서와 사도행전에서 이름만 언급되는 것과는 달리(마 10:3; 막 3:18; 눅 6:15; 행 1:13) 요한복음은 도마와 관련된 중요한 이야기를 제공한다(11:16; 14:5; 20:24-28; 21:2). 이 이야기들에서 도마는 나사로와 함께 죽으러 가자고 말하고(11:16), 예수가 “나는 너희가 있을 곳을 마련하러 간다”라고 말할 때(11:2) 도마는 사후 세계와 예수의 “길”에 대해서 모른다고 선언하고(14:5), 가룟 유다처럼 열둘 중 하나이며, 예수의 부활을 의심하는 신앙이 없는 제자로 나온다(20:24-28). 요한복음의 부정적인 도마의 모습과는 대조적으로 도마복음에서 도마는 예수의 쌍둥이 형제이다. 도마복음의 예수는 ‘성전’이나 ‘집’을 영혼이 거하는 ‘몸’으로 해석하여, 육적인 몸의 부활을 부정하지만, 요한복음의 예수는 성전 정화 사건을 통해서 ‘성전’을 예수의 부활한 몸이라고 말한다(2:21). 또한 예수는 나사로가 다시 살아난 이야기 속에서도 육적인 몸의 부활을 강조한다(11:1-44). 그러므로 육적인 몸의 부활을 거부했던 도마 영지주의는 영혼의 여행에 대한 강조를 통해서 영혼의 부활을 믿었기 때문에 몸에 대한 금욕적인 실천을 통해서 영혼의 훈련을 주장하였다. 요한 기자는 이러한 도마 영지주의의 사상에 반대하여 도마가 가졌던 예수의 말씀에 대한 잘못된 이해(11:16; 14:5)와 육적인 몸의 부활을 의심하는 도마의 신앙(20:25-29)을 비판한다. 이러한 입장은 이미 하나님에게서 나온 말씀으로서의 예수가 살(sarks)이 되었다는 선언(1:14)을 통해서 강조되었다. Throughout the story of Didymus Thomas, this paper investigates theology of the body in both the Johannine community and Thomas community, and how different theologies are intensified in the text of Thomas Gnosticism (The Gospel of Thomas, The Book of Thomas the Contender, and the Acts of Thomas) by using redaction and literary criticism. Unlike the synoptic (Mt. 10:3; Mk 318; Lk 6:15) and the Acts of Apostle (1:13), the Gospel of John provides with important stories of Thomas (11:16; 14:5; 20:24-28; 21:2). In these stories, Thomas says that “We may die with him [Lazarus]” (11:16), and when Jesus states “I am going to prepare a place for you”(11:2), Thomas declares that he does not know after life and the way of Jesus (14:5). In addition, Thomas is one of ‘the twelve,’ the unbelieving disciple, and doubtful of Jesus’ resurrection. In the Gospel of Thomas, Jesus denies the bodily resurrection by interpreting ‘temple’ or ‘house’ with ‘body’ as a dwelling place of the soul; in the Gospel of John, Jesus affirms the bodily resurrection by explaining ‘temple’ as his resurrected body (2:21). He also emphasizes the bodily resurrection in the story of Lazarus’ resurrection (11:1-44). Therefore, the gnostic community of Thomas that negates the bodily resurrection asserted the soul’s training by acetic practice of the body for the resurrection of the soul. Objecting to the thought of Thomas Gnosticism, the author of John criticizes the faith of Thomas who has wrong interpretations of Jesus’ remarks and doubts on the bodily resurrection (20:25-29), which was already stressed by the statement of “the Word became flesh”(1:14).