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강성모(Sung-Mo Kang),박명철(Myoung-Chul Park),이병훈(Byung-Hun Lee),오광교(Kwang-Kyo Oh),안효성(Hyo-Sung Ahn) 제어로봇시스템학회 2013 제어·로봇·시스템학회 논문지 Vol.19 No.5
This paper provides an overview of distance-based formation control. Firstly, in this paper, we introduce preliminary background materials that are used in defining the distance-based formation control. Then, based on the preliminary background, we briefly review main results developed thus far in this field. Lastly, we provide some issues that need to be studied further in future works.
An Outbreak of Ibaraki Disease in Korea
박응복,정창국,최희인,이창우,오효성,이영옥,조명래,임영일,Bak, Ung-Bok,Cheong, Chang-Kook,Choi, Hee-In,Lee, Chang-Woo,Oh, Hyo-Sung,Rhee, Young-Ok,Cho, Myung-Rae,Lim, Young-Il The Korean Society of Veterinary Science 1983 大韓獸醫學會誌 Vol.23 No.1
Epizootics and sporadic outbreaks of the cattle disease characterized by fever, stomatitis and dysphagia were observed in Korea in September through November, 1982. The number of cattle showed typical symptoms of the disease was estimated to 73 and these animals were concentrated in Gyongido province, the central district of Korea. In other districts around Gyongido province the disease tended to be sporadic occurrence. The main lesions of the disease were defined as edema, hemorrhage, degeneration and necrosis of the oral mucosa and musculatures of the esophagus and laryngopharyngeal area, and abomasum. Of these lesions hyaline degeneration and hemorrhage of the striated muscle of the esophagus and laryngopharyngeal area were the most striking changes of the disease and rated to be the lesion of diagnostic significance. The serum samples of the cattle with typical symptoms showed significant positive titer of the antibodies against Ibaraki virus. On these clinical, epidemiological, pathological and serological findings of the disease it was diagnosed as Ibaraki disease presenting the only report on the epizootics in the countries other than Japan. 1982년 9월부터 11월까지 사이에 경기도(京畿道) 일원의 소에서 발열(發熱), 구내염(口內炎), 연하장애(嚥下障碍)를 나타내는 질병(疾病)이 유행성(流行性)으로 발생하였다. 이와같은 질병(疾病)은 같은시기에 충청남도(忠淸南道), 강원도(江源道), 전라남도(全羅南道) 및 경상남도(慶尙南道)의 일부지역에서도 산발적으로 발생하였고, 특징적인 임상소견(臨床所見)으로서 확인된 발생두수(發生頭數)는 73두에 달하였다. 이 질병(疾病)에서 관찰된 주요 병변(病變)은 구강점막(口腔粘膜), 인후두(咽喉頭), 식도(食道) 및 사위(四胃)의 수종(水腫), 출혈(出血), 변성(變性) 및 괴사(壞死)이었으며 이들 병변(病變)중에서도 식도(食道)와 인후두근육(咽喉頭筋肉)의 초자양변성(硝子樣變性)과 출혈(出血)은 진단적(診斷的)인 소견(所見)으로 간주되었다. 특징적인 임상소견(臨床所見)을 보인 소에서 채취한 혈청(血淸)에서 Ibaraki바이러스에 대한 중화항체(中和抗體)가 증명되었다. 이상과 같은 임상(臨床), 역학적(疫學的), 병리학적(病理學的) 및 혈청학적(血淸學的) 소견(所見)에 의하여 질병(疾病)은 Idaraki병(病)이라고 진단(診斷)되었으며 일본(日本) 이외지역의 발생보고는 처음인 것이다.
황보현 ( Bo Hyun Hwang ),박지원 ( Ji Won Park ),박성찬 ( Sung Chan Park ),김선영 ( Sun Young Kim ),백지연 ( Ji Yeon Baek ),김대용 ( Dae Yong Kim ),장희진 ( Hee Jin Chang ),최효성 ( Hyo Sung Choi ),오재환 ( Jae Hwan Oh ) 대한임상종양학회 2011 Korean Journal of Clinical Oncology Vol.7 No.2
목적: 2기 직장암에 있어서 근치적 수술 후 보조 치료의 유용성에 대해서는 의견이 분분하다. 본 연구에서는 2기 직장암의 예후인자를 분석해보고자 하였다. 방법: 2000년 10월부터 2008년 12월까지 국립암센터에서 수술을 받은 총 200명의 2기 직장암 환자를 대상으로 하였다. 단변량 및 다변량 분석을 이용하여 생존율 분석을 하였으며 이를 근거로 2기 직장암 환자의 예후인자를 예측해보고자 하였다. 결과: 2기 직장암에서 5년 생존율과 5년 무병 생존율은 각각 89.2%, 89.0% 였다. 다변량 분석을 하였을 때 5년 생존율에 영향을 주는 예후 인자는 측방절제연의 침범이었고 5년 무병 생존율의 경우 나쁜 분화도와 측방절제연의 침범이 통계적으로 유의하였다. 결론: 측방절제연의 침범 여부가 5년 생존율의 독립적인 예후인자였고 암종의 분화도와 측방절제연의 침범 여부가 2기 직장암의 5년 무병 생존율에 있어서 독립적인 예후인자였다. Background: In stage II rectal cancer, it has remained controversial whether patients get the benefit from adjuvant treatment after curative resection. The aim of this study is to evaluate the prognostic factors of stage II rectal cancer. Methods: From October 2000 to December 2008, 200 patients with stage II rectal cancer underwent surgery at National Cancer Center. Univariate and multivariate survival analyses were performed to determine the prognostic factors in stage II rectal cancer. Results: In stage II rectal cancer, 5-year overall survival and disease free survival were 89.2% and 89.0%, respectively. For overall survival, there was no significant prognostic factor in multivariable analysis. For disease-free survival, tumor differentiation and circumferential resection margin were significant prognostic factors in multivariable analysis. Conclusion: Tumor differentiation and circumference resection margin are independent prognostic factors in disease free survival of stage II rectal cancer. Adjuvant treatment may be considered in patients with these factors.
대장암 절제술 후 정맥 혈전색전증 발생에 대한 저분자량 헤파린의 예방 효과 연구
이승덕(Seung Duk Lee),박지원(Ji Won Park),박성찬(Sung Chan Park),김학진(Hak Jin Kim),최효성(Hyo Seong Choi),오재환(Jae Hwan Oh) 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.79 No.4
Purpose: In western society, prophylaxis for venous thromboembolism (VTE) is the standard treatment under colorectal surgery for colorectal cancer. However, the incidence of VTE after colorectal surgery and the effect of prophylactic methods are not well known in Korea. The aim of this study is to evaluate the incidence of VTE and assess the efficacy and safety of low molecular weight heparin (enoxaparin) after major colorectal surgery in Korean patients with compression stockings. Methods: From Jan. 2006 to Dec. 2008, 1,727 consecutive patients underwent major colorectal surgery. Thirty-six were excluded due to the therapeutic use of enoxaparin. A final number of 1,691 patients were included. Graduated compression stockings were used in all patients and 654 were perioperatively given enoxaparin. Only compression stocking group (group A) and compression stocking with enoxaparin group (group B) were compared in terms of VTE. The event of VTE within 6 months after surgery was counted by clinical symptoms, then imaging findings were used for confirmation. Results: Total VTE developed in 10 patients (0.6%). Three with deep vein thrombosis had pulmonary embolism. Two had only pulmonary embolism. The rates of VTE were not different between group A and B (0.8% vs. 0.3%, P=0.333). Also, postoperative major bleeding was not significantly different. However, postoperative transfusion was higher in group B (P<0.001). Conclusion: The incidence of VTE was very low after colorectal surgery in Korean patients with compression stockings. The additional use of enoxaparin for colorectal cancer patients with compression stockings seems to have little benefit for VTE prophylaxis.