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급성 무결석 담낭염 환자에서 초음파 내시경으로 진단된 담낭관암
전호경,최은광,현창림,이상협 대한췌장담도학회 2022 대한췌담도학회지 Vol.27 No.4
We present an interesting case of acute acalculous cholecystitis which was diagnosed as cystic duct cancer after endoscopic ultrasonography (EUS). A 63-year-old man visited to an emergency room (ER) because of right upper quadrant (RUQ) abdominal pain. The patient had fever up to 38.2℃ and tenderness at RUQ abdomen. The Murphy’s sign was positive. Laboratory tests showed elevated white blood cell count and abnormal liver function test. The computed tomography scan revealed a distended gallbladder with inflammation without gallstone. Emergent gallbladder drainage was performed at ER. The cholecystogram via percutaneous tube and EUS revealed hypoechoic intraluminal mass at cystic duct. Laparoscopic cholecystectomy was performed at first, and the frozen pathologic examination revealed adenocarcinoma in the cystic duct. The extended cholecystectomy was performed after a month and there was no residual tumor in the liver bed and lymph nodes. The final staging of GBC was revealed as pT2N0M0.
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수평비정형을 갖는 필로티 RC골조에 대한 비선형 지진응답해석
전호경,백은림,이상호 대한건축학회지회연합회 2022 대한건축학회연합논문집 Vol.24 No.2
In the previous study, the seismic performance was evaluated by performing the shake table test with or without of the special seismic load as a variable on the piloti RC building with horizontal irregularity. However, it is necessary to evaluate the various factors affecting seismic performance of the piloti RC building through additional analysis studies. For this, it is necessary to use appropriate analysis methods and to verify the applicability of the using seismic response analysis. In this study, we are evaluated to verify the analysis methods applied in this study by modeling the shaking table specimens of the previous study, performing nonlinear seismic response analysis to the input earthquake, and comparing the analysis results with the test results. The analysis results showed generally similar to the test results, and the analysis modeling applied in this study was judged to be relatively valid for simulating the dynamic behavior of the specimen. In addition, it was confirmed that the torsional behavior was properly controlled even if only the special seismic load was applied
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전호경,함석현 한국해양학회 1995 韓國海洋學會誌 Vol.30 No.1
For the study of oceanic surface current, this work presents a system design which is composed of three parts, a Global Positiong System(GPS) unit, a transmitter with radio frequency (RF) modem and an antenna which are housed in a plastic spherical buoy, and computerised of VHF receiving system. The key idea for this study is to employ a commercially available GPS on a drifting buoy and to utilize the receiver position information from the buoy in determining the Lagrangian motion of surface ocean waters. Great efforts has been paid to the system design which would demand several points in harsh conditions common in the sea surface, that is power supply problems housed inside of a plastic buoy, optimizing transmitting radio frequency which limits transmitting distance to a receiving station. for all these difficulties, the system appears to be promising in future oceanic applications and is considered to economical compared to ARGOS drift buoy which is being used by commercial base. We believe that the system needs to be improved in terms of several aspects such as a longer transmitting distance, a power supply and software. for the test experiments in situ, the system has employed off the coast of Ku Ryong Po int the southeast part of Korea and successfully collected the surface current data. The results are presented for two cases from 21 to 31, March 1994 and 21 to 25, June 1994 in terms of current statistics and trajectories of drifting buoys.
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전호경(Jeon, Ho-Gyeong),백은림(Baek, Eun-Rim),이상호(Lee, Sang-Ho) 대한건축학회 2021 대한건축학회논문집 Vol.37 No.8
Most of domestic low-rised buildings with piloti-type have both vertical and horizontal irregularities. In KDS 41 17 00 : 2019, when using the equivalent static analysis method for vertical and horizontal irregular buildings, the special seismic load combination and torsional amplification factor should be applied to the seismic design. However, it is independently introduced without considering the case where both design methods are applied at the same time, and the basis and relevant research are insufficient. Therefore, it is necessary to understand the effect of the special seismic load and torsional amplification factor on the seismic design of building having both vertical and horizontal irregularities. The purpose of this study is to evaluate the seismic performance of the piloti-type building according to the application of special seismic load and torsional amplification factor when designing a building with both vertical and horizontal irregularities. The specimen A that did not apply both the special seismic load and torsional amplification factor and the specimen B that applied only the special seismic load, were designed and fabricated, and the failure mode and behavior were identified through the shaking table tests. As the results of the shaking table test, in the final stage of the specimen A, the failure occurred at the upper and lower joints of the column farthest from the core wall, and the specimen B did not fail or collapse. In addition, it was confirmed that the torsional behavior was relatively controlled even when only the special seismic load was considered.
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Anal Canal Carcinoma: Experience from a Single Korean Institution
이원석,전호경,이우용,윤성현,윤해란,조용범,강원기,박영숙,허승재,안용찬,박원 연세대학교의과대학 2007 Yonsei medical journal Vol.48 No.5
Purpose: The clinical features, treatment modality approaches in clinical practice, and prognostic factors for anal canal carcinoma patients were retrospectively analyzed. Materials and Methods: Between October 1994 and December 2005, 50 patients with anal canal cancer were treated at Samsung Medical Center, Seoul, Korea. Results: After a median follow up of 37.8 months (range, 6.6-136.1 months), the 5-year and 10-year survival rates for the 38 patients with early and locally advanced squamous and cloacogenic carcinoma (squamous cell carcinoma and cloacogenic carcinoma) were 74.8% and 66.5%, respectively. The 5-year survival and disease-free survival rates (DFS) of the 31 patients who received chemoradiation therapy (CRT) were 83.6% and 74.3%, respectively. The overall and DFS could not be determined for the adenocarcinoma group due to the small number of cases (n=8). Univariate analysis showed that tumor size (p=0.04) and inguinal node status (p=0.04) significantly influenced patient survival in patients with squamous cell and cloacogenic carcinomas. Furthermore, univariate analysis also showed that, inguinal node status influenced patient survival in the adenocarcinoma group. Multivariate analysis showed that inguinal node metastasis is a single independent prognostic variable for survival (p=0.04) in patients with squamous cell and cloacogenic carcinomas. Conclusion: Combined CRT has been adopted as standard treatment with outcomes that are comparable to those reported in randomized clinical trials. Due to the rarity and complexity of anal canal carcinoma, interdepartmental cooperation is required for disease treatment. Thus, proper treatment of patients should incorporate a team-approach and should be available to as many patients as possible.
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