복강경 보조 원위 위 절제 환자의 장기적인 '삶의 질' 평가

김동원,김용진,김민주,조규석,김형수,이문수,김재준,이민혁,문철,Kim, Dong-Won,Kim, Yong-Jin,Kim, Min-Ju,Cho, Kyu-Seok,Kim, Hyeong-Su,Lee, Mun-Su,Kim, Jae-Jun,Lee, Min-Hyeok,Mun, Cheol 대한위암학회 2007 대한위암학회지 Vol.7 No.4

목적: 조기위암 수술에 복강경 적용의 용이성 및 종양학적 안정성에 대해서는 많은 연구가 아루어지고 있으나, 복 강경 적용의 또 다른 목적인 '삶와 질' 향상에 대한 연구 는 아직 미흡한 현실이다. 이에 저자들은 위암 수술에 복강경 적용이 '삶의 질' 향상에 미치는 장기적 영향을 평가 하고자 본 연구를 고안하였다. 대상 및 방법: 2003년 1월부터 2004년 12월까지만 2년간 순천향대학병원 외과에서 위 절제 수술 후 위암 1기로 진단된 154명의 환자들을 대상으로 수술 후 1년 이상 경과한 시점에서 설문조사를 시행하였다. EORTC OLQ-C30(3판)과 EORTC QLQ-ST022 한글판을 이용하여 한 명의 전문 간호사에 의해 외래 방문 시 직접 면담 혹은 전화 상담을 통해 설문조사를 시행했으며, 통계처리는 SPSS 12.0 for Windows를 이용하였다. 결과: 전체 대상 환자 154명 중 86명에서 설문 조사가 이루어져 58%의 응답률을 보였으며, 86명(개복군: 57명, 복강경군: 29명)의 평균 연령은 55세였고, 남자가 60명 여자가 26명으로 남녀 비는 2.3 : 1 이었다. 개복 군의 종양 크기는 평균 2.42 cm로 복강경군의 평균 종양 크기 1.8 cm에 비해 유의하게 크기가 컸으며(P=0.003), 평균 획득 림프절 수도 개복 군에서 36개로 유의하게 더 많았다(P=0.000). 그 외 종양관련 인자인 원발암와 침윤도, 림프절 전이 및 TNM 병기에 있어서 양 군 간에 차이는 없었다. 전반적인 건강 상태와 관련된 2 항목의 평균 점수는 개복 군이 57 (${\pm}20.6$), 복강경 군이 60.3 (${\pm}20.4$)으로 양 군 간에 유의한 차이는 없었으며, 기능과 관련된 15 항목과 증상과 관련된 13항목에 있어서도 양군 간에 유의한 차이는 없었다. EORTC QLQ-STO22를 이용한 '삶의 질' 비교 결과 개복군의 평균 점수는 94.5 (${\pm}97.3$), 복강경군은 68.9 (${\pm}64.9$)로 개복군에서 전반적으로 불편한 증상을 많이 호소하였으나 통계학적인 차이는 없었다. 결론: EORTC QLQ-C30 (3판)과 EORTC QLQ-STO22 한글판을 이용한 설문조사 결과 장기적인 측면에서 위 절제술에 복 강경 적용이 환자의 '삶의 질' 향상에 영향을 미치지 못했다. Purpose: Laparoscopy-assisted distal gastrectomy (LADG) is gaining wider acceptance for the treatment of early gastric cancer. However, firm evidence supporting the long-term outcome after LADG for gastric cancer is unknown. This study compared long-term quality of life after LADG versus an open distal gastrectomy (ODG) for early gastric cancer. Methods: This study included 29 patients who underwent LADG and 57 patients who underwent ODG for the treatment of stage I gastric cancer. Quality of life was evaluated based on the Korean version of EORTC QLQ-C30 (version 3.0) and EORTC QLQ-STO22 one year after surgery. All patients underwent a Billroth II gastrectomy for stage I gastric cancer between January 2003 and December 2004. Results: A total of 86 (58%) out of 154 patients responded to the questionnaire. Demographic features showed no difference between the two groups of patients for age, sex, depth of invasion, lymph node metastasis except for tumor size and the number of retrieved lymph nodes. The mean score for global health status was not statistically different (LADG, $60.3{\pm}20.4$ vs ODG, $57{\pm}20.6$; P=0.413). The total score of 21 items related to stomach cancer (EORTC QLQ-STO22) also was not statistically different (LADG, $68.9{\pm}64.9$ vs ODG, $94.5{\pm}97.3$; P=0.340). Conclusion: Based on the results of the Korean version of EORTC QLQ-C 30 (version 3.0) and EORTC. QLQ-STO22, LADG does not seem to have any long-term benefit over ODG on 'quality of life'.

8-HQR 및 8-HQRS 킬레이트 수지의 합성과 그의 이온교환 성질

김동원,김공수,김홍수,Dong Won Kim,Kong Soo Kim,Hong Soo Kim 대한화학회 1986 대한화학회지 Vol.30 No.1

8-Hydroxyquinoline-resorcinol(8-HQR) and 8-hydroxyquinoline-resorcinol-salicylic acid (8-HQRS) chelate resins were prepared by the condensation reaction of 8-hydroxyquinoline, or 8-hydroxyquinoline-salicylic acid, in the presence of resorcinol with formaldehyde. The ion exchange capacities of 8-HQR and 8-HQRS resins were 4.1 meq/g and 5.4 meq/g, respectively. The adsorption and distribution coefficient of metal ions, such as Fe(III), Cu(II), Pb(II), Co(II) and Ni(II) on these resins were discussed. The adsorption of metal ions on these chelate resins showed that the maximum adsorption condition is pH 7. And the distribution coefficient of metal ions on these resins was increased with decreasing of hydrochloric acid concentration. 8-히드록시퀴놀린, 또는 8-히드록시퀴놀린-살리실산을 모체로 하고, 레졸신을 가교제로 하여 그것들을 포름알데히드와 축중합시켜, 8-히드록퀴놀린-레졸신(8-HQR) 및 8-히드록시퀴놀린-레졸신-살리실산(8-HQRS)킬레이트 수지를 합성하였다. 8-HQR 및 8-HQRS수지의 이온교환용량은 각각 4.1 meq/g 및 5.4 meq/g이었다. 이들 수지에 대한, Fe(III), Cu(II), Pb(II), Co(II) 및 Ni(II)금속이온들의 흡착과 분포계수에 대하여 논의하였다. 이들 킬레이트 수지들에 대한 금속이온들의 흡착은, pH=7에서 가장 크게 나타났다. 그리고 이들 금속이온들의 분포계수는, 염산의 농도가 감소함에 따라 증가하였다.

N,N-디메틸포롬아미드 용액에서의 알칼리금속이온과 피리디노-아자크라운에테르와의 착물화 반응

김동원,신영국,김창석,오제직,전영신,김태승,Kim, Dong Won,Shin Young-Kook,Kim Chang Suk,Oh Je Jik,Jeon Young Shin,Kim, Tae Seung 대한화학회 1992 대한화학회지 Vol.36 No.5

알칼리금속이온(Li^+, Na^+, K^+, Rb^+, and Cs^+)과 아미드기를 포함하는 피리디노아자 크라운 화합물인 DBPDA와 PDA의 착물형성에 대한 안정도상수, K를 전기 전도도법을 이용하여 여러 온도에서 측정하였다. 각 온도에서 K값은 DBPDA의 경우 Cs^+ > K^+ > Rb^+ > Li^+ > Na^+의 순서였으며, PDA의 경우는 Cs^+ > K^+ > Rb^+ > Li^+ > Na^+이었다. 또한 DBPDA가 PDA보다 이들 알칼리 금속 이온에서 더 큰 K값을 보여주었다. 넓은 의미를 갖는 "Hole-Size-Selectivity" 원리에 이들 착물은 적용되지 않는 것으로 나타났다. 온도 변화에 따른 K값으로부터 {\delta}H와 T{\delta}S를 각각 구했으며, 이들 반응들은 엔탈피 기여에 따르는 착물형성반응으로 나타났다. 그러나 PDA의 경우 부분적인 엔트로피 항의 증가도 착물의 형성에 기여함을 알았다. The stability constants, K for the complexation of alkali metal cations(Li^+, Na^+, K^+, Rb^+, and Cs^+) with both 4,5: 13,14-dibenzo-6,9,12-triaza-bicyclo [15,3,1] heneicosa-1 (21),7,19-trioxa-2,16-dione (DBPDA) and 6,9,12-trioxa-3,15,21-triaza bicyclo [15,3,1] heneicosa-1 (21),17,19-triene-2,16-dione (PDA) in N,N-Dimethylformamide (DMF) were determined conductomatically at various temperatures. At all the experiment temperatures, the K value sequences of the alkali metal ions with DBPDA and PDA are Cs^+ > K^+ > Rb^+ > Li^+ > Na^+ and Cs^+ > K^+ > Rb^+ > Li^+ > Na+, respectively. The K values for DBPDA are larger those of PDA for alkali metal ions. The widely recounted "hole-size-selectivity" principle is not applicable to these complexation systems. From the K values obtained at different temperatures, {\delta}H and T{\delta}S for these complexation reactions were determined. The enthalpy change plays principal important role in the complex formation by DBPDA. However, in the case of PDA, the entropy change also contributes to its complex formation.

젖소의 사양관리 시스템 개발

김동원,한병성,정길도,김용준,김명순,임태영,채석,Kim, Dong-Won,Han, Byung-Sung,Chong, Kil-To,Kim, Yong-Jun,Kim, Myoung-Soon,Lim, Tae-Yeong,Chae, Seok 대한산업공학회 1998 산업공학 Vol.11 No.3

The agriculture and fishery share in the Korean GDP is continuously decreasing after 1960s. Furthermore the proportion of these industries in the GDP has diminished as low as 10 percent in recent years. However, the stockbreeding sector in these industries are considerably expanded. More than 50 percent of the whole farmhouses are involved in the livestock farming, and the stock farming portion is steadily increased in its size and scope. Thus, the mechanization and the automization of stockbreeding equipments are greatly required to reduce down production cost, as well as to win the competitiveness in the global market. From this aspect, developed in this paper is a stockbreeding management system (SMS) for dairy cattle, which can be used in small and medium sized dairy farms. First, the basic schema of the stockbreeding management system are addressed in view of stockbreeding management for individual dairy cattle. Electronic identification (EI) systems and sensory devices have changed stockbreeding management strategy from group stock control into individual stock control manner. The SMS receives stock body measurement data through the sensory devices such as weight, temperature, and milk conductivity meters. A common database then integrates those measuring data together so that the SMS can determine the appropriate solution on each stock's breeding such as feeding and milking. Thus, each stock can be supervised by a sophisticated SMS that provides the best solution to the stockbreeding throughout the stock's whole life-cycle. Secondly. six major submodules of the SMS, based on the EI and sensory devices, are proposed. They are individual stock management, disease management, health management, feeding management, milking management, and a propagation management submodule. Finally, a prototype system for the SMS is demonstrated. The system is developed using Delphi 2 client-server system run under the Windows 95 environment.

스태빌라이져 위치 및 리어가이더 형상변화에 따른 횡류홴의 성능특성 연구

김동원,김형섭,윤태석,박성관,김윤제,Kim, D.W.,Kim, H.S.,Yoon, T.S.,Park, S.K.,Kim, Yon J. 한국유체기계학회 2004 한국유체기계학회 논문집 Vol.20 No.2

The design point of the cross-flow fan is generally based on the region within low static pressure and high flow rate. It relatively makes high dynamic pressure at low speed because a working fluid passes through an impeller blade twice. However, it has low static pressure efficiency between $30\%$ and $40\%$ because of relative high impact loss. The purpose of this study is to research the reciprocal relation among each parameter. Experiments and numerical analyses are conducted on effects of a stabilizer and a rearguider on performance analysis of a cross-flow fan. Two-dimensional, unsteady governing equations are solved using FVM, PISO algorithm, sliding grid system and standard $k-{\epsilon}$ turbulence model. Experiments are also carried out to estimate the performance of the modeled cross-flow fan. It is clarified that the rearguider of Archimedes type has excellent results for the most part.

Synthesis of (4,5) : (13,14)-Dibenzo-6,9,12-trioxa-3,15,21-triazabicyclo[15.3.1]heneicosa-(1,17,19)(18,20,21)triene and Aza-Crown Polymers

김동원,김창석,최기영,김태승,Dong Won Kim,Chang Suk Kim,Ki Young Choi,Tae Seung Kim Korean Chemical Society 1992 대한화학회지 Vol.36 No.6

건설현장에 사용되는 가설기자재의 안전인증표시 개선방안 연구(I) : 이해관계자 인식 분석 및 표시내용

김동원,원정훈,박용규,임세종,Kim, Dong Won,Won, Jeong-Hun,Park, Yong Kyu,Lim, SeJong 한국안전학회 2017 한국안전학회지 Vol.32 No.4

This study examined the stakeholder cognition of the safety certification marking system by surveying manufacturers, lessors, and users. In addition, among various issues about safety certification marking systems, the improvement of safety certification marking contents was suggested in order to guarantee quality of temporary equipments. The results by statistical method show that it is necessary to increase of users' understanding about the safety certification marking system. In addition, the quality management system of temporary equipments should be introduced to control the actual condition that temporary equipments of various product companies are mixed in a site during removal and reuse processes. For detailed marking contents, it is recommended that a certification mark, an identification number, and the production year should be displayed and the manufacturer name could be selectively presented. Detail informations such as a safety certification number, a product company, a model type or name, a specification, a weight, a product number, and the location of a certification mark should be identified by the identification number.

아이리스 결합형 Partial H-plane 필터

김동원,이정해,Kim Dong-Won,Lee Jeong-Hae 한국전자파학회 2005 한국전자파학회논문지 Vol.16 No.2

본 논문에서 는 새로운 구조의 partial H-plane 필터 인 아이 리스 결합형 Partial H-plane 필터를 제안했다. 제안된 필터는 기존의 H-plane 필터와 구조적으로 비교될 수 있고 커플링 구조로 아이리스 타입의 차단도파로를 사용한다. 시뮬레이션 기반의 필터 설계법으로 아이리스 결합형 partial H-plane 필터와 H-plane 필터를 설계하여 서로 특성을 비교했으며 제안된 필터가 기존의 H-plane필터와 비교해서 사분의 일의 부피를 가지면서 주파수 응답특성이 같은 것을 확인했다. H-밴드에서 측정 결과와 시뮬레이션 결과가 잘 일치하는 것을 확인했다. An iris-coupled partial H-plane filter as a new type of partial H-plane filter is proposed. The proposed filter can be compared with conventional H-plane filter and uses an iris-type evanescent waveguide as a coupling structure. Filter design technique based on numerical simulation is developed to design and compare the proposed filter and H-plane filter. Designed iris-coupled partial H-plane filter has the same frequency response as that of the conventional H-plane filter while its cross section is one quarter. A good agreement between measurements and theoretical prediction is achieved.

하공정맥 막성폐쇄에 의한 Budd-Chiari증후군의 치료

김동원,김준우,박주철,Kim, Dong-Won,Kim, Jun-U,Park, Ju-Cheol 대한흉부심장혈관외과학회 1995 Journal of Chest Surgery (J Chest Surg) Vol.28 No.3

Budd- chiari syndrome resulting from a membranous obstruction of the inferior vena cava[IVC is a rare congenital anomaly. From January 1989 to December 1993, 8 cases of IVC obstruction was treated in Kyung Hee Univ. Hospital. There were 2 male and 6 female patients between 34 and 66 years of age[mean 47.3$\pm$11.9 years of age . 4 patients were treated with angioplasty by balloon catheter and 4 patients were treated with operative correction using cardiopulmonary bypass, profound hypothermia and total circulatory arrest. These 4 patients were repaired the constricted IVC with autologous pericardial patch. In surgically treated patients, all of the specimens were confirmed to be membranous web histopathologically. Postoperative outcome in operative correcting patients was uneventful and postoperative angiography showed unobstructed flow through the IVC with filling of the hepatic veins.The above 8 patients were followed up from 10 months to 56 months [ mean 36.43 17.24 months and recurrent IVC obstruction or stenosis was not seen.

Wi-SUN에서 비동기 CSL모드 MAC의 지연시간 분석

김동원,Kim, Dongwon 한국인터넷방송통신학회 2021 한국인터넷방송통신학회 논문지 Vol.21 No.3

근래에 와서 유틸리티들을 무선으로 원격제어 하는 스마트 팩토리 무선 이동 통신 기술에 대한 연구가 활발히 진행되고 있다. Wi-SUN(Wireless Smart Utility Network) 얼라이언스에서는 EEE802.15.4g/e에 기반한 새로운 무선 통신 표준화 규격으로 스마트팩토리와 같은 플랫폼 구축에 적합한 Wi-SUN 프로토콜 구조를 제시하였다. IEEE802.15.4e의 CSL(Coordinated Sampled Listening) 모드 MAC(Media Access Control)의 지연시간 측면의 성능을 분석하고 효율적 운용을 위한 고려 사항을 살펴본다. In recent years, research on smart factory wireless mobile communication technology that wirelessly remotely controls utilities is being actively conducted. The Wi-SUN(Wireless Smart Utility Network) Alliance proposed Wi-SUN protocol structure suitable for building a platform such as a smart factory as a new wireless communication standardization standard based on EEE802.15.4g/e. It analyzes the performance of the IEEE802.15.4e CSL(Coordinated Sampled Listening) Mode MAC(Media Access Control) in terms of latency and looks at considerations for efficient operation.