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유러닝/컴퓨터과학 : SNMP를 이용한 전력관리시스템 연구
윤기영 ( Ki Young Yun ),안성진 ( Seong Jin Ahn ),정진욱 ( Jin Wook Chung ) 한국컴퓨터교육학회 2010 한국컴퓨터교육학회 학술발표대회논문집 Vol.14 No.2
세계적으로 Green IT가 대두되고 있다. 그 중에서도 특히 전력 사용을 줄이기 위한 기술은 자원적인 측면에서 더욱 중요시 되어야 한다. 큰 빌딩의 경우 수많은 조명 설비들이 사람이 없어도 동작하는 경우가 많아 전기를 많이 낭비하고 있다. 이번 논문은 SNMP(Simple Network Management Protocol) 을 이용해 대단위 시스템의 전력 사용량을 감소시키고 전력관리에 사용하는 센서를 이용해 보안 기능까지 갖춘 시스템을 제안 하는 것을 목표로 한다.
윤기영(Ki Young Yoon),안수미(Su Mi Ahn),신연명(Yeon Myeong Shin),최경현(Kyung Hyun Choi),장문경(Moon Kyung Jang),공은진(Eun Jin Kong),송윤미(Yun Mi Song) 대한외과학회 2007 Annals of Surgical Treatment and Research(ASRT) Vol.72 No.6
Purpose: The length of a patient’s stay in a hospital is an indication of the patient’s recovery rate. The length of the hospital stay has an important economic factor for hospitals. This study was conducted to determine the relationship of the nutritional status at the time of admission to mortality and the length of the hospital stay (LOHS). Methods: The study subjects were 1,619 patients who suffered with cancer, were admitted to Kosin University Gospel Hospital during 2005 and they met the study criteria. The patients were classified to the not at risk group, the patients having one risk factor for malnutrition were the Ⅰ group, the patients having two risk factors for malnutrition were the Ⅱ group, the patients having three risk factors for malnutrition were the Ⅲ group and the patients having 4 risk factors for malnutrition were the Ⅳ group, based on the established criteria of serum albumin <3.0 g/㎗, a total lympocyte count of <1,500 cells/㎣, a cholesterol level of ≥240 ㎎/㎗ or ≤130 ㎎/㎗, weight for height ≥120% or <90% ideal body weight. Results: 24.3% of the patients were classified into the not at risk group, 37.6% were classified into the at risk group Ⅰ, 24.2% were classified into the at risk group Ⅱ, 10.3% were classified into the at risk group Ⅲ and 3.6% were classified into the at risk group Ⅳ. The at risk group (at risk Ⅲ, at risk Ⅳ) had a significantly higher prevalence of liver disease. The relationship between liver disease and low serum albumin albumin levels may have confounded the data. Although the estimated LOHS was similar in all the groups, the average length of stay was 14.4±16.38 days in the malnourished group (at risk group Ⅳ) compared to approximately 2.8 days in the not at risk group. The more nutritional risk factors the patients had, the longer was the LOHS and the mortality rates were higher. Correlation was not observed between the risk factors and the length of the hospital stay, as well as the lack of correlation with the mortality rate. Conclusion: These results suggest that a patient’s nutritional status upon admission has an effect on the length of the hospital stay for patients with carcinoma.
의사위성을 이용한 광역보정정보 전송시스템에 대한 실시험
권금철(Keum-Cheol Kwon),양철관(Cheol-Kwan Yang),윤기영(Ki-Young Yun),이정훈(Jung-Hoon Lee),안대성(Dae-Sung An),김강토(Kang-To Kim),심덕선(Duk-Sun Shim) 대한전기학회 2014 정보 및 제어 심포지엄 논문집 Vol.2014 No.10
In this paper, results of real-time experiments of WA-DGNSS transmission system using pseudolite are presented. Correction data and integrity information is transmitted to users by network communication between master station and pseudolite. And performance of WA-DGNSS transmission system is tested by software and hardware GPS receiver. By results of the experiments, we show that correction data is well transmitted to GPS receiver without errors and the navigation error is decreased.
효모에서 발현된 유전자 재조합 탈메치오닌 인간 성장호르몬의 일반 약리작용
이은방(Eun Bang Lee),신국현(Kuk Hyun Shin),김운자(Oon Ja Kim),윤기영(Ki Young Yoon),천선아(Seon Ah Cheon),채윤정(Yun Jung Chae) 대한약학회 1992 약학회지 Vol.36 No.1
The general and some other pharmacological actions of growth hormone without N-terminal methionine(rhGH) were investigated in animals. The hormone had no influenced on the central nervous system and on body temperature at a high oral dose of 40IU/kg in animals. It had neither analgesic nor antiepileptic actions at the High doses. In the isolated ileum and trachea of guinea-pig and isolated stomach fundus and uterus of rat, it showed neither contractive nor relaxing effets at a concentration of 1 X 10-3IU/ml in bath, and no inhibitory action at a dose of 1 X 10-3IU/ml against the contractions produced by histamine (5 X 10-5g/ml), serotonin(1 X 10-5g/ml, acetylcholine(1 X 10-5g/ml) and oxytocin(5 X 10-3IU/ml). Furthermore, the intravenous infection of 20IU/kg rhGH had no influences on the normal blood pressure and respiration in rabbits. These negative results in pharmacological profile are thought that the hormone may not elicit serious side effects On the other hand, the rhGH exhibited a weak inhibitory action of glucose tolerance in normal rats, significantly lowered the blood glucose contents in adrenalectomiglucose tolerance in normal rats, significantly lowered the blood glucose contents in adrenalectomized rats 20 min after i.v. administration of 80IU/kg, and showed a significant inhibitory effect on in vitro glycerol release in epinephrine-stimulated epididymal fat pad segments of rats.
안수미,윤기영,신연명,최경현,임근승,장문경,송윤미,공은희 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.2
Background : About 30% of patients in the hospital are under nourishment. A large portion of people are undernourished when they are admitted to the hospital and in the majority of these, undernutrition develops further while in hospital. Patient-Generated subjective global assessment(PG-SGA), a method of nutritional assessment based on clinical judgment, has been widely used to assess the nutritional status of adults for both clinical and research purposes. Modified PG-SGA can be used as a nutrition screening tool, and a comprehensive nutrition assessment is desirable for those who are malnourished. The purpose of this study is to develop a simple, reliable and valid nutrition screening program(NSP). Methods : We applied the nutrition screening program(NSP) to adult inpatients who are at risk of malnutrition using the Modified Patient-Generated subjective global assessment(PG-SGA) and objective assessment(electrical medical record data). Results : Therefore simple and beneficial NSP is developed for patients with severe malnutrition. Using NSP. nutritional information of the severe malnutrition patient should be shared with the physicians and they should be taken care of by clinical dietitians to improve their nutritional status. Conclusion : The Modified PG-SGA and nutrition screening tool are simple, reliable and valid nutrition screening program(NSP).
비만을 동반한 위암 환자에서 두 병을 같이 수술 치료한 경험(증례)
최경현,윤기영,문형환,신연명,서경원,안수미,송윤미,석정희,정경연,이은하 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.3
Obesity is growing problem in Korea. We had a case of bariatric surgery during gastric cancer operation. Patient was 29 year old Korean lady with early gastric cancer located in the lesser curvature side of the middle 1/3 of the stomach. Her body weight was 89 kg, height 163 cm, and thus body mass index was 33.5 kg/m2. Preoperative blood pressure was 130/90 mmHg, hemoglobin 12.9 g/dL, total lymphocyte count 3,280/mL, serum albumin 4.3 g/dL, CEA 1.1 ng/mL, CA 19-9 9.1 ng/mL, and alpha fetoprotein 2 ng/mL. Another associated disease was right thyroid follicular neoplasm. The chest X-ray was normal. After IM injection of 2,500 units of heparin 30 minutes before the induction of general anesthesia, she received curative subtotal gastrectomy and Roux en Y gastrojejunostomy when a malabsorption loop of 120 cm jejunum was incorporated between the Treitz ligament and the end to side jejuno-jejunostmy site at May 29th 2006. Her postoperative course was uneventful except a minor wound seroma and the elevations of serum amylase(up to 4 folds) and lipase(up to 2 folds). She lost her body weight 9 kg in 5th, 21 kg in 7th, and 27 kg in 10th postoperative months to became 61.5 kg. On follow up exams in July 2008, she gained 4 kg to overcome her weakness and fatigue. From the above result, the incorporation of a malabsorption loop during reconstruction phase of gastric cancer operation was a good option for obese gastric cancer patients especially in cases of early gastric cancer.
이영하,윤기영,염선분 忠南大學校 環境問題硏究所 1991 環境硏究 Vol.9 No.-
전라북도 진안군 용담면을 중심으로한 그 일대에서 선정된 8지점의 토양을 채취하고 이를 대상으로 토양미생물의 개체군 크기와 이화학적 토양환경을 조사하였다. 토양의 pH는 3.9-6.6(평균 5.3)의 범위로서 대체로 높은 토양산도를 나타내었다. 수분함양은 2.8-20.5%(평균12.6%)의 범위를 보였고 총 유기물함량은 3.5-16.0%(평균8.6%)의 범위로 지역에 따른 차이가 많았다. 일반세균과 일반진균의 개체군 크기는 각각 6.0-81.7×10?cfu/g soil과 8.6-30.4×10⁴cfu/g soil의 범위를 보였으며, 평균치는 각각27.4×10? cfu/g soil 과 17.4×10⁴cfu/g soil로서 세균과 진균의 상대적 평균비는 약 16 : 1이었다. 이러한 결과는 본 조사지역의 토양이 미생물의 생장과 활성이 비교적 활발하지 못한 환경임을 보여준다. 한편 섬유소분해세균과 진균은 각각 총세균(일반세균)과 총진균(일반진균)의 개체군 크기와 매우 높은 상관관계를 보였다. 섬유소분해세균의 개체군은 총세균의 5.8-29.5%(평균 16.6%)에 달하는 수준을 보였으며 섬유소분해진균의 개체균 규모는 총진군의 36.5-66.0%(평균 51.3%)수준이었는데, 이는 본 조사지역의 토양내 섬유소물질의 분해에는 상대적으로 진균의 활성이 보다 크게 작용하고 있음을 보여줄 뿐 아니라 본 조사지역의 토양환경이 우리나라의 다른 토양들에 비하여 토착성 미생물의 비중이 높은 생태임을 나타내 준다.