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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.
트랜잭션을 위한 데이터 우선순위 기반형 시간소인 순서화 기법
윤석환(Yoon Seok Hwan),김평중(Kim Pyoung Jung),박지은(Park Ji Eun),이재영(Lee Jae Young),이동현(Lee Tong Hyun),궁상환(Kung Sang Hwan) 한국정보처리학회 1997 정보처리학회논문지 Vol.4 No.5
Timestamp-Ordering Protocol among transaction scheduling algorithms can cause the priority reversion that a transaction with higher priority is processed after the transaction with lower priority by assigning timestamp to transactions entering system and scheduling them based on the timestamp. To prevent this reversion, we suggest a data priority-based timestamp ordering protocol to schedule transactions based on their priority within the same timestamp group after grouping transactions into constant time interval based on entering points. To evaluate the performance of this protocol, we compared the performance of this protocol with that of others after constructing the simulation environment with real time database system. We verified that the performance of proposed protocol is superior to that of timestamp ordering protocol under the condition of high load and high data conflicts.
이동 컴퓨팅을 지원하는 무선기술 및 데이터 관리기술 현황분석
박현주,김미경,윤종선 한밭대학교 2003 한밭대학교 논문집 Vol.20 No.-
The emergence of powerful portable computers, advances in wireless communication technologies, has made mobile computing a reality. Mobile computing allows to access data anywhere and anytime through portable computer and wireless communication network even when mobile. Mobile computing is characterized by four constraints: Mobility, portable, frequently disconnection and weak connection and asymmetry in the communication. So we have to- design new data model for supporting these mobile constraints. This paper describes to wireless communication technology, mobile computing environments and data management strategy for mobile computing.
패스트 푸드점 이용고객의 지각된 가치가 고객만족 및 재방문의도에 미치는 영향
이선령(Sun Lyung Lee),남궁영(Young Kung Nam),윤혜현(Hye Hyun Yoon) 한국조리학회 2013 한국조리학회지 Vol.19 No.3
This study attempts to 1) identify the dimensions of perceived value in the restaurant industry and 2) assess the effects of these dimensions on overall customer satisfaction and behavioral intent. With a total of 272 samples obtained from empirical research, this study reviews the reliability and fitness of the research model, and verifies a total of 4 hypotheses using the Amos program. The hypothesized relationships in the model were tested simultaneously using a structural equation model(SEM). The proposed model provided an adequate fit to the data:χ2 140.087(df 80), CMIN/df 1.751, RMR .060, GFI .937, AGFI .906, NFI .962, CFI .983, RMSEA .053. As a result of confirmatorical analysis, the quality value, emotional value and economical value were quantified as perceived value in fastfood restaurants. These factors were indicated to have influence on customer satisfaction and re-visit intention. Limitations and future research were also discussed.
이선령(Sun Lyung Lee),윤혜현(Hye Hyun Yoon),남궁영(Kung Young Nam) 한국호텔외식관광경영학회 2010 호텔경영학연구 Vol.19 No.6
Blogs have become an important part of hospitality businesses` overall internet marketing strategies. Recognizing the vital role of blogs in restaurant marketing, this study attempts to: 1) identify consumers` motivations for visiting restaurant blogs and 2) examine the perceived service quality of the blogs applying importance-performance analysis. A total of 308 usable responses from restaurant consumers were obtained via self-administrated questionnaires. The results showed that there are two motivations for using restaurant blogs: information seeking and hedonic seeking. The results of IPA indicated that the mean value of importance ratings of restaurant blog attributes(5.14) was higher than that of the performance ratings of restaurant blog attributes(4.44), suggesting the need to refine restaurant blogs. Information aspects, such as whether the content was presented in an efficient manner, how current the information is, and reliability, were detected as the most important service quality aspects of restaurant blogs. The findings provide managers advice to utilize restaurant blogs as an effective communication channel.