http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Jaewoo Kwon ),( Jae Hoon Lee ),( Yun Beom Ryu ),( Min Kyu Sung ),( Hyeyeon Kim ),( Dakyum Shin ),( Naru Kim ),( Sarang Hong ),( Yejong Park ),( Eunsung Jun ),( Woohyung Lee ),( Ki Byung Song ),( Dae 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Right anterior sectionectomy (RAS) for hepatic disease is technically difficult and performed infrequently, so there is an insufficient reports about this surgery. We describe here the clinicopathologic and oncologic outcomes of right anterior segmentectomy in 415 patients. Methods: Patients treated with RAS at department of hepato- biliary and pancreatic surgery, Asan Medical Center, Seoul, South Korea between January 2008 and December 2017 were retrospectively reviewed. Results: All patients underwent RAS with alternative Glissonean pedicle clamp and Kelly clamp-crushing method for liver transection. Mean operative time was 165 minutes and transection time was 28 minutes. The incidence of major morbidity (≥grade III) occurred in 28 cases(6.7%). Bile leakage occurred in 63 patients (15.1%) but no patient needed reopration(grade C). Post hepatectomy liver failure grade A occurred in 39 patients (9.4%), grade B occurred in 7 patients (1.7%) but there was no patient of PHLF grade C. There was no in-hospital mortality due to postoperative complication. The mean hospital stay was 13.3 days.The pathologic diagnosis were hepatocellular carcinoma (HCC; n=361, 87.0%), intrahepatic cholangiocarcionoma (IHCC; n=15, 3.6%), HCC and IHCC mixed type (n=17, 4.1%), colorectal cancer liver metastasis (n=12, 2.9%), and the other lesions (n=10, 2.4%). Mean tumor size was 3.8 cm. In hepatocellular carcinoma (HCC), 5 year overall survival(OS) rate was 78.3% and 10 year OS rate was 64.4%. Five year disease free survival(DFS) rate was 57.2%, 10 year DFS rate was 37.7%. Conclusions: RAS showed acceptable procedure-related morbidity, mortality and appropriate oncologic outcomes for HCC.
An Optimized Time-synchronization Method for Simulator Interworking
Kwon, Jaewoo,Kim, Jingyu,Woo, Sang Hyo Arman Korea Multimedia Society 2019 멀티미디어학회논문지 Vol.22 No.8
In this paper, we discuss an optimization approach for time-synchronizations in networked simulators. This method is a sub-technology that is required to combine heterogeneous simulators into a single simulation. In previous time-synchronization studies, they had built a network system among networked simulators. The network system collects network packets and adds time-stamps to the networked packets based on the time that occurs in events of simulation objects in the individual simulators. Then, it sorts them in chronological order. Finally, the network system applies time-synchronization to each simulator participating in interworking sequentially. However, the previous approaches have a limitation in that other participating simulators should wait for while processing an event in a simulator in a time stamp order. In this paper, we attempt to solve the problem by optimizing time-synchronizations in networked simulation environments. In order to prove the practicality of our approach, we have conducted an experiment. Finally, we discuss the contributions of this paper.
JaeWoo Park,KeeHwan Park,KeunHo Joe,SookHee Choi,InJae Lee,JuHee Hwang,Min Kwon,ShengMin Wang,DaiJin Kim 대한신경정신의학회 2012 PSYCHIATRY INVESTIGATION Vol.9 No.3
Objective-The purpose of the study was to develop the Korean version of the Stage of Change Readiness and Treatment Eagerness Scale for Smoking Cessation (K-SOCRATES-S) based on the Korean version of the Stages of Readiness for Change and Eagerness for Treatment scale (K-SOCRATES). This paper also demonstrates its reliability and validity among patients with nicotine dependence in South Korea. Methods-At seven healthcare promotion centers in Gyeonggi-do, 333 male smokers aged 20 to 70 who visited smoking cessation clinic were recruited for this study and the K-SOCRATES-S was administered. After three months, the number of respondents who successfully stopped smoking was assessed by testing their urine cotinine level. Subsequently, exploratory factor analysis was performed to verify the reliability and validity of the K-SOCRATES-S. Also, a logistic regression analysis was performed to examine the variables that can predict the successful cessation of smoking on subscales of the K-SOCRATES-S. Results-Exploratory factor analysis of the K-SOCRATES-S showed that the scale consisted of three factors: Taking Steps, Recognition, and Ambivalence. The scales measuring Taking Steps and Recognition in this scale had a significantly positive correlation with the scores observed on Kim’s smoking cessation motivation scale. The scales measuring Taking Steps and Recognition had a significantly negative correlation with Ambivalence. Overall, the results indicate that the K-SOCRATES-K scale showed high validity. Conclusion-The K-SOCRATES-S developed in the present study is highly reliable and valid for predicting a patient’s likelihood of success in quitting smoking among patients who want to cease smoking.
User Intention Based Intuitive Mobile Platform Control: Application to a Patient Transfer Robot
Jaewoo Park,Bohyun An,Ohwon Kwon,Hak Yi,Changwon Kim 한국정밀공학회 2022 International Journal of Precision Engineering and Vol.23 No.6
This study proposes a user’s intuitive intention-based control system for mobile robot platforms. As an application of the control scheme, we focused on a robot that transports patients in medical facilities. However, since most of the people who operate the patient transfer robot (PTR) are not robotics experts, an intuitive control method is needed to enable easy operation of the robot system. Also minimizing the discomfort experienced by the patient in the process of transferring the patient through the patient transfer robot is another important issue to consider. Therefore, the main contributions of this are developing an intuitive user interface and proposing a sway reduction control scheme. To accomplish the first issue, the intuitive control is implemented by proposing a robot control interface, where four force-sensing resistor (FSR) sensors are installed on a robot’s handle (where a user holds a robot). Through this, the robot can be easily moved with only a simple and intuitive operation of the user. Therefore forward, backward, left movement, right movement, left turn, and right turn operation can be controlled through the intuitive movement of the user input through the developed user interface. Additionally, in order to satisfy the second requirement, the patient’s sway reduction strategy is suggested by applying fuzzy logic-based control command generation method to the user intention. Through this method, the sway that occurs during the movement of the robot is reduced. In this study, the mecanum wheel was applied to the driving platform of the patient transfer robot to enable omnidirectional movement. The performance of the proposed control method is verified through simulations and experiments. Simulation and experimental results confirm that the proposed method reduced the acceleration and jerk root mean square values of the robot compared to a comparison method.