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사물인터넷을 이용한 디지털 도어락, DDiT의 설계 및 구현
서대규(Dae Gyu Seo),고한신(Han Shin Ko),노용덕(Yong Deok Noh) 한국정보과학회 2015 정보과학회 컴퓨팅의 실제 논문지 Vol.21 No.3
사물인터넷을 이용한 디지털 도어락, DDiT를 소개한다. DDiT에서는 기존의 디지털 도어락을 제어하기 위하여 통합 마이크로 컨트롤러 플랫폼인 아두이노를 이용하였으며 모바일 플랫폼으로는 안드로이드 스마트폰을 사용하였다. DDiT의 장점 중 하나는 기존의 디지털 도어락에 부착해서 사용할 수 있는 형태로 스마트폰 애플리케이션을 열쇠로 활용하는 방식이라는 점이다. 더구나, 스마트폰 애플리케이션을 사용하므로 이를 통해서 여러 가지 부가적인 기능도 수행할 수 있다. 따라서, 사물인터넷을 이용한 디지털도어락은 일반 가정집 도어락은 물론 호텔, 연구실, 및 회사와 같은 높은 보안을 필요로 하는 장소에까지 다양한 분야에서 효과적이고 편리하게 활용될 수 있을 것이다. In this paper, the Digital DoorLock by Internet of Things (DDiT) is introduced. In order to implement DDiT, an integrated micro-controller platform, Arduino is used to control an existing digital doorlock and an android type smart phone is adopted as a mobile platform. One of the advantages of DDiT is that it can be added to an existing digital doorlock and a smart phone application is used as a digital key. Owing to the smart phone application, several other types of applications could also be made. Therefore, DDiT could be used effectively and conveniently in ordinary homes as well as in high security applications such as in hotels, institutes, and companies.
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성인 상부위장관 질환군에서의 H . pylori 검출에 이용되는 검사법의 상호비교
한길성(Gil Sung Han),서대규(Dae Gyu Seo),신왕식(Wang Sik Shin),정재군(Jae Gun Jung),손호상(Ho Sang Shon),최정윤(Jung Yoon Choe),안기성(Ki Sung Ahn),배정동(Jung Dong Bae),박재복(Jae Bok Park),강민모(Min Mo Kang) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.1
N/A Background/Aims: For the evaluation of recent reports that H. pylori infection plays a causative ro1e in the pathogenesis of upper gastrointestinal diseases, we studied the relationship between the presence of H. pylori infection in patient and asymptomatic volunteer groups, using histologic demonstration of the bacteria, CLO test, and serum H. pylori antibody titer. Calculation of sensitivity, specificity, and predictive value of CLO test and antibody detection rate in relation to histologic demonstration were also performed. Methods: We evaluated the detection rate of H. pylori infection by direct demonstration with special stain, CLO test, and IgG antibody titer by EIA method in 80 symptomatiq patients who were categorized by endoscopic findings into 24 patients with chronic gastritis, 22 patients with gastric ulcer, 20 patients with duodenal ulcer, 14 patients with gastric cancer, and 20 asymptomatic volunteers. Four or more biopsy specimens of gastric and duodenal mucosa were taken from each of the total 100 cases with gastrofibroscopy and then blood samples were also taken. Results: In sections stained by Warthin-Starry method, H. pylori was found 62.5% in the 80 patients group and 30.0% in the 20 asymptomatic volunteers group. The prevalence of H. pylori was the highest in gastric cancer group(71.4%). The prevalence of H. pylori in the patients with peptic ulcer and gastric cancer was significantly higher than the asymptomatic volunteer group(p0.05). Positive CLO test in the patient group was 77.5% and 35.0% in the 20 asymptomatic volunteers group. The positive rate was the highest in gastric cancer group. The positive rate of the CLO test in patients with peptic ulcer and gastric cancer groups was significantly higher than the asymptomatic volunteer group(p0.05). The positive rate of IgG antibody test in the patient group was 82.5% and 45% in the 20 asymptomatic volunteer group. The rate of positivity was the highest in duodenal ulcer group. The positive rate of the serum IgG antibody test in all patient groups was significantly higher than asymptomatic volunteer group(p 0.05). Sensitivity and specificity of CLO test and IgG antibody test in relation to direct H. pylori smear was 94.6%, 76.7%, 96.4%, and 53.47o respectively. Conclusions: The positive rate of the H. pylori infection in patients with peptic ulcer and gastric cancer groups was significantly elevated compared with control and chronic gastritis groups for each of the 3 tests. For clinical purpose, CLO test can be used as a single guide for the treatment of H. pylori infection for its rapidity and efficacy. (Korean J Gastroenterol 1996;28: 19 - 27)
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정재근(Jae Gun Jung),서대규(Dae Gyu Seo),신왕식(Wang Sik Shin),한길성(Gil Sung Han),황기석(Kee Suk Whang) 대한내과학회 1995 대한내과학회지 Vol.49 No.6
The authors report the two cases about spontaneous remission of acute myelogenous leukemia developed after severe infection with brief review of leterature. The one case was that of a 31-year-old female admitted with acute myelogenous leukemia and orbital cellulitis, and the other case was that of a 25-year-old female admitted with acute myelogenous leukemia and pneumonia. In those two cases, we delayed chemotherapy because of severe infection. After that, we nuexpectedly could observe the spontaneous remission of acute leukemia. The two patients respectively had a short duration of remission for 6 weeks and 5 months.
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췌장미부 절제술로 완치된 성인에서 발생한 국소형 Nesidioblastosis 1 예
김용진,박재복,안기성,손호상,서대규,신왕식,한길성,정재군,오훈규 대한내분비학회 1995 Endocrinology and metabolism Vol.10 No.2
Nesidioblastosis, the process of differentiation of pancreatic islets from ductular epithelium, is a frequent cause of hyperinsulinemic hypoglycemia in neonates and infants, but rare in adults. A 38-year-old man had suffered from intermittent hypoglycemic symtoms for 10 years. He had inappropriately elevated plasma immunoreactive insulin level and I/G ratio during a prolonged fast. There was no evidence of tumor on the abdominal CT scan and operation although celiac angiography showed a round mass like lesion in the distal pancreatic area. His hypoglycemic symptoms were improved by distal pancreatectomy. Pathologic finding in the resected pancreas was that of focal type nesidioblastosis I.e, increased size and number of islets with scattered numerous small islets around ductules in focal lesion. Distal pancreatectomy as an initial operation may be effective in the treatment of focal type nesidioblastosis(J Kor Soc Endocrinol 10: 136-141, 1995).
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