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중증 외상 환자의 골반골절에서 경피적 혈관 색전술과 Young과 Burgess 분류의 상관관계
차용한 ( Yong Han Cha ),설영훈 ( Young Hoon Sul ),김하용 ( Ha Yong Kim ),최원식 ( Won Sik Choy ) 대한외상학회 2015 大韓外傷學會誌 Vol.28 No.3
Purpose: Immediate identification of vascular injury requiring embolization in patients with pelvic bone fracture isn’t an easy task. There have been many trials finding indicators of embolization for patients with pelvic bone fracture. Although Young and Burgess classification is useful in decision making of treatment, it is reported to have little value as indicator of embolization in major trauma patients. The aim of this study is to find out Young and burgess classification on predicting vessel injury by analzyng pelvic radiograph taken from major trauma patients with pelvic bone fracture. Methods: Among major trauma patients with injury severity scores (ISS) higher than 15 who visited our emergency room from January 2011 to June 2014, 200 patients were found with pelvic bone fracture in trauma series and thus pelvic CT angiography was taken. Setting aside patients with exclusion criteria, 153 patients were enrolled in this study for analysis of Young and Burgess classification. Results: The most common mechanism of injury was lateral compression in both groups. There was no statistical significant difference in Young and Burgess classification (p=0.397). The obturator artery was the most commonly injured artery in both groups. Six patients had more than one site of bleeding. Conclusion: Prediction of transcatheter angiographic embolization using Young and Burgess classification in severe trauma patients is difficult and requires additional studies. [ J Trauma Inj 2015; 28: 144-148 ]
설재훈,정영호,장종승,임영도,최부귀 東亞大學校 附設 情報通信硏究所 1998 情報通信硏究所論文誌 Vol.6 No.1
In this paper, we apply the controller output error method to the adaptive fuzzy control design. This method employs a gradient descent algorithm to minimize a error function which is beased on the error at the controller output. This contrasts with more conventional methods which use the error at the plant output. The error function is minimized by adapting some or allof the parameters of the fuzzy controller. In this paper, we propose to revise the consequent parameter. The proposed adaptive fuzzy controller is applied to the adaptive control of a nonlinear plant and is shown to be capable of providing good overall system performance.
임영도,설재훈,한창훈,김승철,박종오,이준탁,방석원 東亞大學校 附設 情報通信硏究所 1998 情報通信硏究所論文誌 Vol.6 No.1
This paper describes an intelligent cruise control system for automobile. With the remarkable numericalincrease of automobiles on the roal, the optimized traffic flow control using the cruise control is one of the very important traffic problems to overcome the limitation of an existing road capacity. Based onthis idea that minimize the fuel cost and teh air pollution, and accept a driver's needs for driving, we have developed an intelligent cruise control system for vehicle. This proposed intelligent fuzzy cruise controller was successfully implemented using the fuzzy algorithm, the i80c196 μ-controller board and the throttle valve actuator. The field test results on an linear road was introduced.
MATLAB을 이용한 자동차 엔진모델 설계 및 시뮬레이션
장종승,설재훈,김승철,임영도 東亞大學校 附設 情報通信硏究所 1997 情報通信硏究所論文誌 Vol.5 No.1
Detailed model of longitudinal dynamics of a typical automobile is developed. A nonlinear controller is designed for speed control of the automobile. This paper discribes the first step of a vehicle model design which designs a engine model. The design of a vehicle engine designs Matlab Simulink, and control which is compared describes characteristics be using Fuzzy and PID.
GMDP 신경망 알고리즘과 PID 제어기를 이용한 효율적인 PLANT 제어에 관한 연구
장진청,설재훈,장종승,추연규,임영도 동아대학교 공과대학 부설 한국자원개발연구소 1995 硏究報告 Vol.19 No.2
Adapative control theory or parameter tuning of PID controller is mainly limited in linear systems. But in this paper, using a nonlinear mapping capability of NNS, we derive a realtime tuning method of PID controller based on a Back-Propagation method of single GMDP NN. A variety of neural models, especially higher-order networks, are known to computationlly powerful for complex application. While they have advantages over traditional multilayered perceptrons, the uniformity in their network structures, learning algorithms and loop time creates practical problems. Thus this paper evaluates the capability between MLP and GMDP for performing velocity control. Backpropagation is applied to the GMDP as learning rule.
PID-FGS(Fuzzy Gain Scheduling)를 결합한 병렬제어기 설계
김승철,박종오,정영호,설재훈,임영도 東亞大學校 附設 情報通信硏究所 1999 情報通信硏究所論文誌 Vol.7 No.1
본 논문에서는 PID-FGS(Fuzzy Gain Scheduling) 제어기를 사용한 병렬제어기를 구상한다. PID 제어기는 산업현장에서 널리 쓰이는 제어기로서, 지금까지도 널리 사용되고 있다. 그러나 PID 제어기는 적응성이 없기 때문에 초기에 적절한 파라메터의 설정이 중요하다. 그에 반해 FGS는 초기에 많은 오차를 수반하지만, 시뮬레이션 동한 초기오차를 수정한다. 따라서 본 논문에서는 이러한 각 제어기의 장점을 취합하여 병력제어기를 구성하는 것이다. 그리고 본 논문에서 사용한 제어기의 성능을 평가하기 위하여 PID, FGS, PID-FGS 제어기의 각각의 시뮬레이션 결과를 살펴본다.
강인한 퍼지 디지털 PI+D 제어 시스템의 설계 및 구현
권태익,이재홍,김승철,설재훈,임영도 동아대학교 정보기술연구소 2001 情報通信硏究所論文誌 Vol.9 No.1
In this paper, Fuzzy Digital PI+D Controller plans for load, noise, plant change, Fuzzy Controller makes use of simple four rule and membership function, and plant used three phase Induction Motor. Characteristic of system compared from experimentation respectively the proposed Control System, Digital PID Control and Digital PI+D Control System.
외상성 췌장 경부 절단에서 시행된 Binding 췌위장문합술 1례
설영훈 ( Young Hoon Sul ),이상일 ( Sang Il Lee ),전광식 ( Kwang Sik Cheon ),송인상 ( In Sang Song ) 대한외상학회 2013 大韓外傷學會誌 Vol.26 No.1
Pancreatic injury following blunt abdominal trauma is rare, but it has high morbidity and mortality. Various treatments have been attempted, but none has yet been clearly established. The pancreatic neck transection is usually managed by using a distal pancreatectomy with or without a splenectomy. However, pancreatic insufficiency and the risk of post-splenectomy infection remain significant problems. To avoid these problems in patients with a pancreatic neck transection, one may use a pancreaticoenteric anastomosis as a treatment option, but a pancreatic fistula from the pancreaticoenteric anastomosis remains a significant cause of morbidity and mortality. Recently, several reports proposed the binding pancreaticogastrostomy to minimize the possibility of a postoperative pancreatic fistula developing after pancreatic surgery. Thus, we report a case of a traumatic pancreatic neck transection successfully treated with a binding pancreaticogastrostomy.