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SoIP(Surveillance over IP)와 표준화
김춘규,Kim, Choon-Kyu 한국통신학회 2005 韓國通信學會論文誌 Vol.30 No.7B
DVR 산업은 전 세계적으로 특별한 표준화의 노력 없이 독자적인 시스템을 가지고 성장하여 왔다. 기기의 설치가 소규모이고 보안 시스템이라는 측면 때문에 표준화의 필요성이 크지 않았다. 보안이라는 측면에서는 비 표준화가 합당할 수도 있으나 IP 를 이용한 surveillance 시장으로 진입하는 과정에서 다양한 IP 기기 (영상 전화기, IP-PBX 등)와의 상호 접속에 따른 표준화의 필요성이 절실해졌다. 본 고에서는 이러한 필요성에 따라 SIP (Session Initiation Protocol) 기반의 세션 제어 기능을 탑재한 IP surveillance 시스템을 구축하고 보안 이외의 응용 가능성을 살펴보았다. The DVR industry has been grown with their own, proprietary systems without the need of standards because the security products are independently installed in small scale and the communication needs are very limited. The industry might have tighter security than having standardized products, but the appearance of IP surveillance and the need of communications with IP products such as IP Phones and IP-PBX made the standardization unavoidable. In this paper, we built an IP surveillance system with SIP based session control and investigated the applications of it other than the security itself.
김춘규(Choon Kyu Kim),지훈상(Hoon Sang Chi),소의영(Euy Young Soh),김병로(Byong Ro Kim) 대한소화기학회 1985 대한소화기학회지 Vol.17 No.1
N/A Acute appendicitis is one of the most common surgical disease and differential diagnosis with many other disease is necessary. Mensturation, pregnancy, and other gynecological diseases during reproductive age in female sometimes cause difficulties in differential diagnosis of acute appendicitis and therefore leads to high percentage of misdiagnosis. Two hundred of women in there reproductive ages who had operation for acute appendicitis during the time period of three years in the department of surgery, Yonsei University medical center, were the subjects of study; their histories were reviewed in order to analyze the possible factors that might be necessory in differential diagnosis of acute appendicitis. Following results came out 1) 70% Of the women whose histories were reviewed were in their reproductive ages; among them 56% were in the twenties. 2) 5 2.5% of the patients were admitted within 24 hours after the initial onset of symptoms and as the time is delayed, worsening of histopathological finding and the incidence of misdiagnosis increased. 3) Increase in WBC count was present in 61.5%,' of the cases and it was significant in diagnosis of acute appendicitis. 4) The most common symptom was right lower quadrant abdominal pain(85%) followed by anorexia, indigestion, nausea and vomiting in descending orders of frequency, and the most common sign was right lower quadrant abdominal tenderness, both direct (87%) and indir ect(42%) 5) In 69.8% of the cases, it was possible to confirm certain evidence of inflammation histopathologically. Acute suppurative and gangrenous inflammation was the most common histopathological finding comprising 39.5% of all cases. 6) There were no differences in incidence depending on menstrual phases, but the chance of misdiagnosis and the severity were higher during the follicular phase compared to luteal phase. 7) The average hospital day were 4.4 in non-perforated appendicitis and 10 in perforated ones. 8) Complications were present in 7.7% of all cases.
폐쇄성 대장암 상부에 발생한 ischemic colitis
김춘규(Choon Kyu Kim),김남규(Nam Kyu Kim),지훈상(Hoon Sang Chi),이광길(kwang Kil Lee),최인준(In Joon choi) 대한소화기학회 1984 대한소화기학회지 Vol.16 No.1
The ischemic colitis proximal to ohstructive colon cancer was firstly reported by MacCallum and Kaisch in 1947 Nowadays, its clinical importar.ce and the study of pathogenesis is reported frequently. Because of the rare incidence of this complicated condition this lesion could be overlooked, v hich then could result in anastomotic leakage, fecal fistula and peritonitis. Differential diagnosis from idiop thic ulcerative colitis will be needed because it is similar with idiopathic ulcerative colitis in view of clinical symptoms and operative findings. We have experienced 2 cases of the ischemic colitis proximal to obstructive sigmoid colon cancer and then reported these cases zvith literature reviev .
김춘규(Choon Kyu Kim),권국환(Kuk Hwan Kwon),박정수(Cheong Soo Park),김병로(Byung Ro Kim) 대한소화기학회 1984 대한소화기학회지 Vol.16 No.1
N/A Ulcerative colitis is a diffuse inflammatory disease of the mucosal lining of the colon and rectum without apparent cause. Ulcerative colitis is relatively frequent in the western countries but is extremely rare in Korea. This report is an analysis of 26 cases of ulcerative colitis which treated in the Yonsei Medical Center from Jan. 1970 to Aug. 1983. The results were as following: 1) The most prevalent age group was 5th decade and male to female ratio was 1.36:1%. 2) The most common clinical manifestation was bloody diarrhea. 3) According to the ariatomical site of the lesion, pancolitis was most common but proctitis was relatively rare than other reports. 4) By medical treatment, improvement was noted in 68.2%. 5) Operations were performed in 8 cases, and its indications were intractability 1 case, massive bleeding 1 case, suspected carcinoma 2 cases, toxic megacolon 2 cases and perforation 2 cases. 6) Postoperative mortality was 62.5% but all of the 5 cases, treated by emergency, were died and all of the 3 cases, treated by elective operation, were survied. 7) Cause of death was sepsis in all.