국외 열수력 해석 코드 개발 동향

정법동,정재준 한국원자력산업회의 2002 원자력산업 Vol.22 No.12

Bridge to Transplantation with a Left Ventricular Assist Device

정재준,성기익,정동섭,김욱성,이영탁,박표원 대한흉부외과학회 2012 Journal of Chest Surgery (J Chest Surg) Vol.45 No.2

A 61-year-old female patient was diagnosed with dilated cardiomyopathy with severe left ventricle dysfunction. Two days after admission, continuous renal replacement therapy was performed due to oliguria and lactic acidosis. On the fifth day, an intra-aortic balloon pump was inserted due to low cardiac output syndrome. Beginning 4 days after admission, she was supported for 15 days thereafter with an extracorporeal left ventricular assist device (LVAD) because of heart failure with multi-organ failure. A heart transplant was performed while the patient was stabilized with the LVAD. She developed several complications after the surgery, such as cytomegalovirus pneumonia, pulmonary tuberculosis, wound dehiscence, and H1N1 infection. On postoperative day 19, she was discharged from the hospital with close follow-up and treatment for infection. She received follow-up care for 10 months without any immune rejection reaction.

트랜스포머 기반 MBTI 성격 유형 분류 연구 : 소셜 네트워크 서비스 데이터를 중심으로

정재준(Jae-Joon Jung),임희석(Heui-Seok Lim) 한국컴퓨터정보학회 2023 한국컴퓨터정보학회 학술발표논문집 Vol.31 No.2

Surgical Treatment of Anastomotic Recurrence after Gastrectomy for Gastric Cancer

정재준,조종호,신수민,심영목 대한흉부외과학회 2014 Journal of Chest Surgery (J Chest Surg) Vol.47 No.3

Background: The purpose of this study was to evaluate the outcome of reoperation with curative intent for the treatment of anastomotic recurrent gastric cancer. Methods: Ten patients with anastomotic recurrence of gastric cancer who underwent reoperation from November 1995 to February 2011 were analyzed retrospectively. The time interval between the first operation and reoperation, recurrence pattern, type of surgery, survival, and postoperative outcome were analyzed. Results: The average time to recurrence after initial surgery was 48.8 months (median, 23.5 months). Of the ten patients, eight (80.0%) had recurrence at the esophagojejunostomy, one (10.0 %) at the esophagogastrostomy, and two (20.0%) at the esophagus. Among these patients, five had combined metastasis or invasion to major organs in addition to anastomotic recurrence. Complete resection was achieved in five patients (50.0%), and incomplete resection or bypass surgery was performed in the remaining five patients (50.0%). The overall median survival time was 7.0 months (range, 2.2 to 105.5 months). The median survival time following complete resection and palliative surgery (incomplete resection or bypass surgery) was 28.1 months (range, 4.2 to 105.5 months) and 5.5 months (range, 2.2 to 7.5 months), respectively. Conclusion: Surgical resection of anastomotic recurrent gastric cancer should be implemented only in selected patients in whom complete resection is possible.

셀룰라 오토마타를 이용한 수도권의 도시성장 예측

정재준(Jae Joon Jeong),한동엽(Dong Yub Han),김용일(Yong Il Kim),이재원(Jae Won Lee) 대한공간정보학회 2001 한국공간정보학회지 Vol.9 No.3

Urban growth patterns have occasionally not coincided with planning of the policy makers or urban planners. So it is necessary in the planning step to predict the area to change to urban from rural. In this study, we aim to predict urban growth with cellular automata, a system modeling a dynamic phenomenon. Seoul metropolitan area (SMA) is selected as research area, and urbanized area of SMA has grown rapidly during last 4 decades. Applying the model, urban growth characteristics to date from 1972 are analyzed, and urbanized area maps to the year 2050 are predicted. In this study, the map of urban growth prediction is produced considering urban growth trends to date and some physical factors. And it is considered that the results of the developed model will be used as input data in urban growth prediction systems, which should include more data of socioeconomic and political sides in addition to physical sides.

개발가능지 추출을 위한 물리적 측면의 도시성장 예측

정재준,김형태 국토지리학회 2008 국토지리학회지 Vol.42 No.3

Urbanization is worldwide phenomenon and unexceptional in Korea. It is necessary in the spatialdecision making to predict urban forms for the efficient land use. For the purpose of analyzing the urban growthpattern of Seoul metropolitan area(SMA), we use satellite imagery and digital road map. And then, we extract thedevelop area in SMA based on allometry and cellular automata urban growth model. In the model, urban area andpopulation are used in calculating the newly urbanized area. Experiments show that western and southern area ofSMA are newly developed. Although this research is an exemplary urban growth model dealing with physical dataonly, it can be a good start to develop a more practical model having socio-economic sides for planning practices. 20세기 이후 도시화는 전 세계적인 현상이며 우리나라 역시 급속한 도시화를 경험하고 있다. 도시와 관련된 공간의사결정과정에서 미래의 도시 형태를 객관적인 모델에 의해 예측하는 것은 토지의 효율적인 이용을 추구한다는 점에서 대단히 의미 있는 일일 것이다. 본 연구에서는 먼저 수도권의 도시성장 현황을 위성영상 등을 이용하여 실태를 파악하였다. 다음으로 도시인구와 도시면적사이의 상대생장이론에 기초하여 개발지의 총량을 결정한 후, 결정된 총량을 셀룰라 오토마타에 기반한 도시성장 모델에 입력하여 수도권의 개발가능지를 추출하였다. 연구결과 수도권의 경우 서부와 남부로의 도시성장이 예측되었으며, 본 연구결과는 물리적 측면을 고려한 수도권의 개발가능지를 추출한 것으로 수도권 개발에 관련된 기초자료로 쓰일 수 있을 것이다.

Cardiac Resynchronization Therapy Using a Dual Chamber Pacemaker in Patients with Severe Left Ventricular Dysfunction and a Left Bundle Branch Block

정재준,김인숙,정재한,이영탁,정동섭 대한흉부외과학회 2013 Journal of Chest Surgery (J Chest Surg) Vol.46 No.4

Through the use of a dual chamber (DDD) pacemaker, we achieved a cardiac resynchronization effect in a 51-year-old female patient who was transferred to our hospital from another hospital for an operation for three-vessel coronary artery disease. Her electrocardiogram showed a left bundle branch block (LBBB) and a prolonged QRS interval of 166 milliseconds. Severe left ventricle (LV) dysfunction was diagnosed via echocardiography. Coronary artery bypass grafting (CABG) was then performed. In order to accelerate left atrial activation and reduce the conduction defect, DDD pacing using right atrial and left and right ventricular pacing wires was initiated postoperatively. The cardiac output was measured immediately, and one and twelve hours after arrival in the intensive care unit. The cardiac output changed from 2.8, 2.4, and 3.6 L/min without pacing to 3.5, 3.4, and 3.5 L/min on initiation of pacing. The biventricular synchronization using DDD pacing was turned off 18 hours after surgery. She was transferred to a general ward with a cardiac output of 3.9 L/min. In patients with coronary artery disease, severe LV dysfunction, and LBBB, cardiac resynchronization therapy can be achieved through DDD pacing after CABG.

1인 가구와 주간 인구 지수를 이용한 지방자치단체 군집분석

정재준 국토지리학회 2022 국토지리학회지 Vol.56 No.4

Single-person households and daytime population index are representative demographic data whose distribution varies greatly depending on the characteristics of the regions. Single-person households have become a representative household type for the region and the difference between the daytime population and the residential population increased due to the separation home and work. This paper aims to conduct local government clustering using single-person households and daytime population index. To this end, after examining the status of single-person households and daytime population in Korea, data for regional clustering were organized based on the correlation analyses among variables of single-person households and daytime population data. Next, analyses methods were designed to perform cluster analyses, and the results of cluster analyses by methods were compared and analyzed. When using the daytime sex ratio index proposed in this study as a variable for clustering analyses, it is possible to cluster local governments according to its function. 지역의 성격에 따라 그 분포가 매우 달라지는 대표적인 인구학적 측면의 데이터로는 1인 가구와 주간 인구 지수를 들 수 있다. 1인 가구는 가구의 특수한 형태가 아닌 지역을 대표하는 가구 형태가 되었으며, 주간 인구와 상주인구의 차이는 직주 분리 현상에 따라 커지게 되었다. 본 논문에서는 우리나라 시군구의 1인 가구 비율과 주간 인구 지수를 이용하여 시군구의 성격을 구분하는 군집분석을 실시하고자 한다. 이를 위해, 먼저 우리나라의 1인 가구 현황과 주간 인구 현황을 살펴본 후, 1인 가구와 주간 인구 데이터의 상관관계 분석을 토대로 지역 구분을 위한 데이터를 정리하였다. 다음으로는 군집분석 방법을 설계하여 시군구에 대해 군집분석을 하였고, 방법별 군집분석의 결과를 비교·분석하였다. 군집분석의 변수로 본 연구에서 제안한 주간 성비 지수를 이용할 경우 시군구를 기능에 따라 군집화하는 것이 가능하다는 결론을 얻을 수 있었다.

사후확률 결합에 의한 분류정확도 향상에 관한 연구

정재준 한국공간정보학회 2004 한국공간정보학회지 Vol.12 No.1

위성영상 분류에 관한 주요 주제 중 하나는 분류 정확도 향상에 있다. 동일지역에 대한 동일시기의 위성영상을 취득할 수 있는 기회가 많아지는 현실을 감안할 때, 복수의 위성영상 데이터를 이용하여 분류정확도가 향상된 분류결과를 도출하는 것은 의미 있는 일일 것이다. 본 연구 주제는 최대우도법을 사용하여 계산된 데이터의 사후확률 및 분류 불확실도를 Dempster-Shafer의 증거이론에 적용하여 분류정확도를 향상시키고자 하는 것이다. 분석결과 개별적인 데이터 분류나 데이터간 융합에 의한 분류보다 본 연구에서 제안한 방법이 전체정확도와 Kappa 지수 모두 높은 정확도를 나타냈으며, 정확도 차에 대한 검정을 실시하여 본 연구에서 제안한 방법이 다른 방법에 비해 우수함을 통계적으로 증명하였다. Improvements of classification accuracy are main issues in satellite image classification. Considering the facts that multiple images in the same area are available, there are needs on researches aiming improvements of classification accuracy using multiple data sets. In this study, orthogonal summation method of Dempster-Shafer theory (theory of evidence) is proposed as a multiple imagery classification method and posterior probabilities and classification uncertainty are used in calculation process. Accuracies of the proposed method are higher than conventional classification methods, maximum likelihood classification(MLC) of each data and MLC of merged data sets, which can be certified through statistical tests of mean difference.

성폭력범죄의 처벌 등에 관한 특례법 개정안(일명 ‘도가니법’)에 대한 소고(小考)

정재준 한국법제연구원 2012 법제연구 Vol.- No.42

We could know that sexual violence against children has been continuing from seeing Jeongseonghyeon case (hyejin and yeseul`s murder case) on December in 2007, Jodusun case (Na Young`s incident) on December in 2008 and Gimgiltae case on February in 2010. The fact that sexual violence had come to happen against disabled children since 2000 acted as the catalyst for establishing and revising special law about sexual violence crime. Law about punishment of sexual violence crime and protection of victims enacted in 1994 abolished. Special exemption law concerning the punishment of sexual violence crime and law about sexual violence prevention and victim protection enacted. Law about the use of electronic ankle bracelet for surveillance of certain offenders established on April in 2007. Law concerning sexual prevention of children and adolescent all revised on June in 2009. Drug treatment law for sex drive of sex offenders also known as chemical castration has enforced since July, 2011. Nonetheless, sexual crime, sexual crime against children and disabled person has been increasing(II-1). Therefore, legislation alternatives through revision of sexual violence special law have appeared(II-2). However, urgent legislation for additional punishment about sexual offenders is criticized for human rights abuse, double penalties, lack of effectiveness. Recently revised special law about punishment of sexual crime a.k.a Dogani law is still criticized from public opinion. I compared and weighed (III-1,2,3) fundamental principles of law from requisite clauses of rape which is the most controversy in the special law of sexual violence as known as Dogani Law, Non-offense subject to compliant and statute of limitation exclusion. I would submit a proposal(IV) to find the right direction of criminal law. 2007년 12월 정성현 사건(혜진, 예슬 양 살해사건), 2008년 12월 조두순 사건(나영이 사건), 2010년 2월 김길태 사건 등 아동을 대상으로 한 성폭력범죄가 끊이지 않고 있으며, 2000년대부터 광주 인화학교에서 오랜 기간 동안 장애 아동에 대한 성폭행이 상습적으로 이루어졌다는 사실은 각종 성폭력범죄에 대한 특별법을 제・개정하는 여론의 촉매가 되었다. 1994년 제정되었던 「성폭력범죄의처벌및피해자보호등에관한법률」이 폐지되고 「성폭력범죄의처벌등에관한특례법」과 「성폭력방지및피해자보호등에관한법률」제정되었으며, 2007년 4월 제정된 「특정 범죄자에 대한 위치추적 전자장치 부착 등에 관한 법률」, 2009년 6월 전부 개정된 「아동・청소년의성보호에관한법률」, 2011년 7월부터 시행된 「성폭력범죄자의성충동약물치료에관한법률(일명, ‘화학적 거세법’)」등이 그것이다. 이제 성폭력범죄에 대하여는 「형법」이 아니라 성폭력에 대한 특별법이 대부분 적용되는 상황에 이르렀다. 그럼에도 불구하고 성폭력범죄, 아동 성폭력범죄, 장애인 대상 성폭력범죄 등의 성범죄는 오히려 증가하는 추세이며(II-1), 이러한 성폭력 특별법의 개정을 통한 가중처벌의 입법적 대안들은 여전히 지속되고 있다(II-2). 그러나 성폭력범죄자에 대한 가중처벌을 위한 급박한 입법들은 인권침해, 이중처벌, 처벌의 실효성 부족이라는 비판을 동시에 받고 있다. 최근에 개정된 「성폭력범죄의처벌등에관한특례법」(일명 ‘도가니법’)도 이러한 여론에서 자유롭지 못하다. 성폭력 특별법의 대표격인 이 도가니법의 가장 큰 논란인 강간죄의 구성요건 조항, 비친고죄화, 공소시효 배제 등을 근본적인 법원칙과 비교 검토(III-1, 2, 3)하면서 바람직한 형사법의 방향을 모색하고자 하는데 이 논문의 제언(IV)을 담았다.