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김형태(Kim Hyeong Tae),안재성(Ahn Jae Seong),전민철(Jeon Min Cheol),김장렬(Kim Jang Ryul) 한국지적정보학회 2010 한국지적정보학회지 Vol.12 No.2
지난 10여 년 동안 추진되어온 국가 GIS 사업의 급속한 성장에도 불구하고 공간자료 간의 연계 및 공유체계가 미흡하여 중복구축에 따른 예산낭비 등이 우려되고, 최근에는 이를 고려한 국가통합공간자료체계 구축이 추진 중이다. 또한, 사용자의 요구에 띠라 더욱 정확하고 많은 데이터가 생산되었음에도 관련업무에서 이를 제대로 활용하지 못하거나, 구축된 시스템을 인지하지 못하는 비효율적인 업무수행 가능성이 내재되어 있다. 본 연구에서는 한국토지주택공사의 내ㆍ외적 환경분석을 통하여 업무에서의 공간정보 활용에 대한 현황과 여러 업무 중에서 가장 대표적인 ‘택지개발사업’에 대하여 업무분석을 하였으며, 이미 구축된 공간정보 DB를 활용하여 행정업무를 구현해 봄으로써 문제점을 분석하고 개선방안을 제안하였다. Despite the rapid growth of national GIS projects that were initiated for the past 10 years, the connective and cooperative system among spatial data was insufficient which may lead to the waste of budget owing to the overlapping constructions. Recently, the configuration of National Integrated Spatial Data System is under progress considering this. Although more accurate data are generated based on the requirements of users, these are not well applied to the relevant works or inefficient work was carried out without perceiving the configurated system. This study analyzes the current status on application of spatial information at work through internal/external enviromental analyses of Korea Land & Housing Corporation and the most representative work among varieties, 'Housing Land Development Project', was analyzed. It analyzes the problems and suggest plans for improvement by demonstrating the administrative work using the spatial information DB that is already constructed.
( Ga Hee Kim ),( Hee Kyong Na ),( Ji Yong Ahn ),( Jeong Hoon Lee ),( Kee Wook Jung ),( Do Hoon Kim ),( Hyeong Ryul Kim ),( Kee Don Choi ),( Ho June Song ),( Yong-hee Kim ),( Gin Hyug Lee ),( Hwoon-yon 대한소화기학회 2021 Gut and Liver Vol.15 No.5
Background/Aims: Data regarding the prognosis of early esophageal cancer are lacking. This study investigated the long-term outcomes and factors affecting the survival of patients with mucosal esophageal squamous cell carcinoma (T1aESCC). Methods: We analyzed the clinical and tumor-specific parameters of 263 patients who received surgical resection (SR; n=63) or endoscopic resection (ER; n=200) for T1aESCC. Underlying comorbidities were scored using the Charlson comorbidity index (CCI). Overall survival (OS) was the primary outcome, and multivariate regression analysis was performed to predict factors for OS. Results: Of the study patients (age, 64.5±8.0 years), the CCI was 1.0±1.4 in the ER group and 0.6±0.9 in the SR group (p=0.107). The 5-year OS rate during follow-up (54.4±20.4 months) was 85.7% (ER group, 86.8%; SR group, 82.4%; p=0.631). The cumulative 5-year incidence of esophageal cancer recurrence was 10.5% in the ER group (vs 0% in the SR group). The overall mortality rate was 12.9% (ER group, 12.0%; SR group, 15.9%; p=0.399). The most common cause of mortality was second primary cancers in the ER group (75%) and organ dysfunction or postoperative complications in the SR group (70%). According to multivariate analysis, only CCI was significantly associated with OS (p< 0.001). The 5-year OS rate in patients with a CCI >2 and in those with a CCI ≤2 was 60.2% and 88.2%, respectively (p<0.001). The treatment method (ER vs SR) was not a significant affecting factor (p=0.238). Conclusions: The long-term prognosis of patients with T1aESCC was significantly associated with underlying comorbidities. (Gut Liver 2021;15:705-712)
Jin Hee Kim,Byung Moon Ham,Yong Lak Kim,Yoon Seok Jeon,Sung Hee Han,Jae Sang Sung,Ki Bong Kim,Hyeong Ryul Kim Korean Society of Critical Care Medicine 2002 Acute and Critical Care Vol.17 No.2
BACKGROUND: Endoventricular circular patch plasty (EVCPP)was introduced as an effective reconstructive procedure for ventricular aneurysm and diffuse dilated cardiomyopathy after myocardial infarction.We report the 4-year results of EVCPP in Seoul National University Hospital, the experiences of anesthesia and intensive care for EVCPP in patients with ischemic cardiomyopathy. METHODS: EVCPP has been performed on 31 patients (22 men and 9 women wit h a mean age of 62 years)during 4 years from March 1998 to March 2002.Six patients (19%)were NYHA cl ass II,24 pat i ent s were cl ass III,and 1 pat i ent was cl ass I V.Preoperative and postoperative left ventricular end-diastolic volume (LVEDV),left ventricular end-systolic volume (LVESV),ejection fraction (EF)were determined and compared.Transesoghageal echocardiograghy (TEE)was used to measure the distance between aortic annulus and ventricular aneurysm during EVCPP.Milrinone combined with beta -adrenergics was infused during separation from cardiopulmonary bypass (CPB) and in the intensive care unit. RESULTS: Three patients (10%)needed an intra-aortic balloon pump to wean from CPB and one patient (3%)died in the hospital.Out of 30 survivors,29 patients returned to NYHA class I or II and one patient to class III.Out of 30 patients who underwent echocardiographic study before and after EVCPP,EF increased from 34 +/-9%to 38 +/-10%,and LVEDV and LVESV decreased from 139 +/-43 ml to 94 +/-20 ml and from 90 +/-34 ml to 59 +/-17 ml,respectively. CONCLUSIONS: EVCPP is effective to exclude the akinetic left ventricular segment,thus improving left ventricular function and clinical status of patients with ischemic cardiomyopathy.However, studies concerning postoperative intensive care are warranted to reduce the postoperative complications and morbidity.
( Hye Jin Joo ),( Hyeong Ryul Kim ),( Yeon Mok Oh ),( Yong Hee Kim ),( Tae Sun Shim ),( Dong Kwan Kim ),( Seung Il Park ),( Woo Sung Kim ),( Dong Soon Kim ),( Chang Min Choi ) 대한결핵 및 호흡기학회 2011 Tuberculosis and Respiratory Diseases Vol.71 No.3
Background: In mediastinal lymph node sampling in non-small cell lung cancer (NSCLC) it is important to determine the appropriate treatment as well as to predict an outcome. Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a recently developed, accurate, safe technique in patients with NSCLC for sampling mediastinal lymph nodes. We sought to determine the usefulness of EBUS-TBNA in mediastinal staging with NSCLC considered to be operable. Methods: We retrospectively reviewed the records of 142 patients who underwent EBUS-TBNA for mediastinal staging in the Asan Medical Center, Korea from July 2008 to July 2010. If patients were in an operable state, they underwent subsequent surgical staging. Diagnoses based on biopsy results were compared with those based on surgical results. Results: We performed EBUS-TBNA in 184 mediastinal lymph nodes in 142 NSCLC patients. Almost all of the EBUS-TBNA samples were from the lower paratracheal (112, 60.9%) and subcarinal (57, 31.0%) lymph nodes. In 142 patients, 51 patients (35.9%) were confirmed with malignant invasion of the mediastinal lymph node by EBUS-TBNA and 91 (64.1%) patients were not confirmed. Among the 91 patients, 64 patients (70.3%) underwent surgical staging. 3 patients (4.7%) who were misdiagnosed by the EBUS-TBNA were confirmed by surgery. After Diagnostic sensitivity of EBUS-TBNA, the prediction of mediastinal metastatsis was 94.4% and specificity was 100%. The procedures were performed safely and no serious complications were observed. Conclusion: We demonstrated the high diagnostic value of EBUS-TBNA for mediastinal staging.
Resection of Pulmonary Metastases from Hepatocellular Carcinoma following Liver Transplantation
Shin Hwang,Yong-Hee Kim,Dong Kwan Kim,Chul-Soo Ahn,Deog-Bok Moon,Ki-Hun Kim,Tae-Yong Ha,Gi-Won Song,Dong-Hwan Jung,Hyeong Ryul Kim,Gil-Chun Park,Yong-dong Yu,Sung-Gyu Lee 한국간담췌외과학회 2010 한국간담췌외과학회 학술대회지 Vol.2010 No.4
Joo, Hye-Jin,Kim, Hyeong-Ryul,Oh, Yeon-Mok,Kim, Yong-Hee,Shim, Tae-Sun,Kim, Dong-Kwan,Park, Seung-Il,Kim, Woo-Sung,Kim, Dong-Soon,Choi, Chang-Min The Korean Academy of Tuberculosis and Respiratory 2011 Tuberculosis and Respiratory Diseases Vol.71 No.3
Background: In mediastinal lymph node sampling in non-small cell lung cancer (NSCLC) it is important to determine the appropriate treatment as well as to predict an outcome. Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a recently developed, accurate, safe technique in patients with NSCLC for sampling mediastinal lymph nodes. We sought to determine the usefulness of EBUS-TBNA in mediastinal staging with NSCLC considered to be operable. Methods: We retrospectively reviewed the records of 142 patients who underwent EBUS-TBNA for mediastinal staging in the Asan Medical Center, Korea from July 2008 to July 2010. If patients were in an operable state, they underwent subsequent surgical staging. Diagnoses based on biopsy results were compared with those based on surgical results. Results: We performed EBUS-TBNA in 184 mediastinal lymph nodes in 142 NSCLC patients. Almost all of the EBUS-TBNA samples were from the lower paratracheal (112, 60.9%) and subcarinal (57, 31.0%) lymph nodes. In 142 patients, 51 patients (35.9%) were confirmed with malignant invasion of the mediastinal lymph node by EBUS-TBNA and 91 (64.1%) patients were not confirmed. Among the 91 patients, 64 patients (70.3%) underwent surgical staging. 3 patients (4.7%) who were misdiagnosed by the EBUS-TBNA were confirmed by surgery. After Diagnostic sensitivity of EBUS-TBNA, the prediction of mediastinal metastatsis was 94.4% and specificity was 100%. The procedures were performed safely and no serious complications were observed. Conclusion: We demonstrated the high diagnostic value of EBUS-TBNA for mediastinal staging.
이동형 스크러버를 이용한 암모니아 및 톨루엔의 제거 효율
김재영 ( Jae-young Kim ),김장윤 ( Jang-yoon Kim ),이연희 ( Yeon Hee Lee ),김민선 ( Min Sun Kim ),김민수 ( Min-su Kim ),김현지 ( Hyun Ji Kim ),류태인 ( Tae In Ryu ),정재형 ( Jae Hyeong Jeong ),황승율 ( Seung-ryul Hwang ),김균 ( Ky 한국환경농학회 2018 한국환경농학회지 Vol.37 No.1
BACKGROUND: The mobile vortex wet scrubber was developed to remove the harmful chemicals from accidental releases. However, there was a disadvantage that it was limitedly used for volatile organic compounds (VOCs) such as toluene according to the physicochemical properties. This study compared the removal efficiencies of an improved mobile scrubber on toluene and ammonia by applying diverse adsorption and absorption methods. METHODS AND RESULTS: The removal efficiencies on harmful chemicals were examined using various adsorption and absorption methods of water vortex process (C), phosphoric acid-impregnated activated carbon adsorption (PCA), pH-controlled water (pH 2.5) vortex process absorption with sulfuric acid (SWA) after ammonia exposure, granular activated carbon adsorption (GCA), and activated carbon mat adsorption (CMA) after toluene exposure. As a result, the best removal efficiency was shown in the SWA for ammonia and GCA for toluene. Also, the SWA and GCA methods were compared with different concentration levels. In the case of ammonia exposure (5, 10 and 25%), there was no difference by concentration levels, and the concentration in the outlet gradually increased, with pH change from acid to base. In the case of toluene exposure (50, 75 and 100%), the outlet concentration was higher relative to the exposure concentration in the initial 10 min, but the outlet concentration was remained steady after 10 min. CONCLUSION: The newly improved mobile scrubber was also effective in removing VOCs through adsorption techniques (activated carbon, activated carbon fiber, carbon mat filter etc.), as well as removing acid-base harmful chemicals by neutralization reaction.