표준화 논단 - 클라우드 컴퓨팅 활성화 방안

김양우,정성욱,Kim, Yang-U,Jeong, Seong-Uk 한국정보통신기술협회 2009 TTA저널 Vol.125 No.-

Wound Healing Effects of Rose Placenta in a Mouse Model of Full-Thickness Wounds

김양우,백승렬,이은석,이상호,모상현,김수윤,모지홍,Chieko Kondo,전영우 대한성형외과학회 2015 Archives of Plastic Surgery Vol.42 No.6

Background Rosa damascena, a type of herb, has been used for wound healing in Eastern folk medicine. The goal of this study was to evaluate the effectiveness of rose placenta from R. damascena in a full-thickness wound model in mice. Methods Sixty six-week-old C57BL/6N mice were used. Full-thickness wounds were made with an 8-mm diameter punch. Two wounds were made on each side of the back, and wounds were assigned randomly to the control and experimental groups. Rose placenta (250 μg) was injected in the experimental group, and normal saline was injected in the control group. Wound sizes were measured with digital photography, and specimens were harvested. Immunohistochemical staining was performed to assess the expression of epidermal growth factor (EGF), vascular endothelial growth factor (VEGF), transforming growth factor-β1 (TGF-β1), and CD31. Vessel density was measured. Quantitative analysis using an enzymelinked immunosorbent assay (ELISA) for EGF was performed. All evaluations were performed on postoperative days 0, 2, 4, 7, and 10. Statistical analyses were performed using the paired t-test. Results On days 4, 7, and 10, the wounds treated with rose placenta were significantly smaller. On day 2, VEGF and EGF expression increased in the experimental group. On days 7 and 10, TGF-β1 expression decreased in the experimental group. On day 10, vessel density increased in the experimental group. The increase in EGF on day 2 was confirmed with ELISA. Conclusions Rose placenta was found to be associated with improved wound healing in a mouse full-thickness wound model via increased EGF release. Rose placenta may potentially be a novel drug candidate for enhancing wound healing.

金融保險市場 開放과 企業의 對應

김양우 성균관대학교 무역연구소 1997 세계보험 시장과 한국의 보험회사 Vol.1 No.-

Appraising the Interface Features of Web Search Engines Based on User-defined Relevance Criteria

김양우 한국비블리아학회 2011 한국비블리아학회지 Vol.22 No.1

Although research has shown a significant amount of work identifying various dimensions of relevance along with exhaustive lists of relevance criteria, there seem to have been less effort to apply the findings to improve actual systems design. Based on this assumption, this paper investigates to what extent those relevance criteria have been incorporated into the interface features of major commercial Web search engines, suggesting what can/should be done more. Before stepping into the actual system features, this paper compares recent relevance research in Information Science with other human factor studies both in Information Science and its neighboring discipline (HCI), as an attempt to identify studies that are conceptually similar to the relevance research, but not named as such way. Similarities and differences between these studies are presented. Recommendations suggested to support applicable interface features include: 1) further personalization of interface designs; 2) author-supplied meta tags for the Web contents; and 3) extensions of beyond-topical representations based on link structure.

DRG 대응전략으로서의 Critical Pathway의 개발

김양우 한국병원약사회 2000 병원약사회지 Vol.17 No.2

수지 재접합술 149예의 부종에 대한 분석

김양우 大韓成形外科學會 1995 Archives of Plastic Surgery Vol.22 No.2

The effects of edema on the small joints of hand are detrimental to the functional recovery. They are also one of the factors affecting on the postreplanted survivability. Then resolution of edema is a necessary prerequiste for joint mobility. During the last 6 years, 149 cases of finger replantation were carried out in 149 patients. Prospective study for edema in replanted fingers was carried out in 149 cases. For the purpose of exclusion of additional effects on the edema in replanted digits, multiple finger amputations were excluded in this study. The results of the analysis were as follows: 1. The middle phalanges were most commonly replanted in single amputated finger injury. Finger replantation were most frequently carried out in the 21-30 year age group. 2. Statistically significant increases of digital circumferential length due to the edema were observed in all replanted digits compared to the uninjured fingers. On the 3rd postoperative day, the edema was maximally increased, and thereafter it gradually decreased. The edema was persisted until the 28th postoperative day. 3. Significantly increased volume, due to the edema was noted in all replanted digits. The edema was at peak on the 3rd postoperative day. 4. Even though statistically insinificant the more proximal part of digit was replanted, the more edema was increased clinically. Also increased edema was noted on the joint portion of the replantated fingers, but again it was not statically significant.

미래 컴퓨팅 기술의 대통합, 그리드-그리드 기술 표준화의 어제와 오늘, 그리고 내일

김양우,한동헌,Kim, Yang-U,Han, Dong-Heon 한국과학기술정보연구원 2006 지식정보인프라 Vol.23 No.-

중학생 학습과제 수행을 위한 정보탐색과정에서 적합성 및 비적합성에 관한 연구 - 에듀넷 사이트를 중심으로 -

김양우,박성재 한국문헌정보학회 2014 한국문헌정보학회지 Vol.48 No.3

Although a significant number of studies have been conducted in user-based relevance criteria, a need for further research still remains. The rational is associated with the following inadequacies: ① research on young user groups, ② research on the Web environment with multimedia resources, ③ research on the irrelevance criteria and implications to improve related systems and services. Accordingly, this study identified user-based relevance and irrelevance criteria, examining 40 middle school third grader students who use KERIS Edunet site. The results identified 16 relevance criteria and 8 irrelevance criteria. Major implications related to information system and service improvements. 다수의 이용자 기반 적합성 기준에 관한 연구가 수행되어 왔지만 여전히 추가 연구의 필요성이 제기되고 있다. 추가연구 수행의 필요성은 다음과 같은 사항의 미비와 관련 된다: ① 어린 이용자 집단 대상의 연구, ② 웹 환경에서의 연구, ③ 비적합성기준에 관한 연구 및 관련 시스템과 서비스 개선을 위한 시사점 도출. 이에 본 연구는 KERIS 에듀넷 사이트를 활용하는 40명의 중학교 3학년 학생들의 탐색 및 자료평가 과정을 조사해 적합성 및 비적합성기준을 식별하였다. 연구결과는 16종류의 적합성기준, 8종류의 비적합성기준을 보여주었다. 연구결과를 기반으로 한 제안점은 관련 시스템 및 서비스 개선과 관련된다.

컴퓨팅 환경의 컨버전스, 그리드 그리드 기술 표준화 동향

김양우,한동헌,이필우,김윤희 한국인터넷정보학회 2006 인터넷정보학회지 Vol.7 No.4

대둔근근막피판을 이용한 천골부 압박궤양의 수술적 치료

김양우,차진한 梨花女子大學校 醫科大學 醫科學硏究所 1998 EMJ (Ewha medical journal) Vol.21 No.1

천골부 압박궤양의 수술 방법으로 대둔근근피판술이 주로 사용되어 왔으나 많은 단점들이 있고 재발률이 높다. 자자들은 V-Y전진 대둔근근막피판술을 이용하여 좋은 결과를 얻었기에 보고하고자 하였다. 중앙 길병원과 이화여자대학교 부속 목동병원 성형외과에 입원했던 천골부 압박궤양 환자 43명을 대상으로 V-Y전진 대둔근근막피판술을 시행하였다. 궤양의 크기는 평균 8X8cm 이었으며 평균 32개월 추적 관찰한 결과, 합병증은 경미하게 나타났고 깊은 천골부 압박궤양의 치료에 있어 V-Y전진 근막피판술은 충분한 내구성이 있고 비교적 쉽고 간단하며 안전한 방법이다. For coverage of sacral pressure sore, the gluteus maximus musculocutaneous flap had been used commonly. We covered these sacral defect with the gluteus maximus fasciocutaneous flap. Forty three parients with relatively large(average 8X8cm) sacral grade Ⅳpressure sores underwent bilateral gluteus maximus fasciocutaneous flap and donor site was closed as a V-Y advancement. The mean postoperative follow up was 32 months, with a range of 4 to 53months. Using this technique, we achieved uniformly good results and minimal complication. There is no recurrance in our cases. We believe that the V-Y advancement technique using the fasciocutaneous unit has some major advantages for repair of large sacral defects. It is a safe, simple, and less invasive method. The purpose of this presentation is to demonstrate our encouraging experience with this surgical modality.