연약점토지반에 설치된 IER 지주식 흙막이의 효과적인 수평변위억제 방법에 관한 연구

김자영,임종철,서민수,김창영,박은경,박태건,Kim, Jayoung,Im, Jong-Chul,Seo, Minsu,Kim, Changyoung,Park, Eun Kyeong,Park, Tae Keon 한국지반공학회 2017 한국지반공학회논문집 Vol.33 No.10

기존 흙막이 공법을 개선함으로, 자립이 가능하게 IER공법이 개발되었다. IER 공법의 안정성은 실내모형실험과 현장실험을 통해서 확인되었다. 특히, 점토지반에서의 실내모형실험의 결과 상당한 변위 감소효과를 확인할 수 있었다. 본 연구에서는 IER을 점토지반에 실제 적용하여 계측데이터를 수집하였으며, 이것을 이용하여 연약점토지반에서의 적용성에 대해 분석하였다. 그리고 수치해석을 통해 동일한 개수의 H-pile이 적용된 일열 H-pile 흙막이에 비해서 IER 공법의 수평변위가 70.9% 감소하는 것을 확인하였다. 그러므로 IER 공법을 연약점토지반에 적용하면 높은 수평변위억제효과로 인해 지반의 안정성은 상당히 많이 증대될 것으로 판단된다. 또, 점토지반에서의 수평변위억제방법으로 전면지주의 근입부에 DCM보강을 제안하여, 수치해석을 통해 DCM 최적의 보강위치를 분석하였다. 그 결과, 굴착저면에서 전면지주의 근입부의 중간지점까지 DCM 보강하는 것을 제안하였다. A self-supported temporary excavation method called Inclined Earth Retaining structure (IER) has been developed by improving an existing excavation method. The stability of the IER was proved with both model tests and field tests. Especially, the results of the model tests proved that the lateral displacement of a model retaining wall was significantly reduced in clay. In this study, the applicability of the IER installed in the soft clay ground is estimated by analyzing survey data collected in the construction field. The results of FE analysis show that the lateral displacement of the IER decreased by 70.9% of that of a single row, self-supported retaining wall using the same number of H-piles. Thus, using the IER method in the soft clay ground will increase the stability of the excavated ground with the effect restraining its lateral displacement. Furthermore, using Deep Cement Mixing (DCM) to the upper half embedded depth of front support is recommended as a subsidiary method of reducing the lateral displacement of IER in the soft clay ground based on FE analysis results.

정보센터 자동화시스템의 통합화에 관한 연구

김자영,Kim, Ja-Young 한국과학기술정보연구원 과학기술정보센터 1995 Journal of Information Science Theory and Practice Vol.26 No.4

이용자 서비스 강화와 효율적인 정보관리를 위해 각 정보센터들이 구축하고 있는 정보센터 자동화시스템의 개발이 최근 멀티미디어와 네트워크 기술의 발달과 더불어 통합화 경향을 보이고 있다. 즉 과거 소장정보만을 제공하던 것에서 CD-ROM 등 소장 외부 데이터베이스외에도 인터넷과 PC통신망과 같은 외부 온라인 데이터베이스도 하나의 시스템에 통합하는 것이다. 따라서 본 연구에서는 국내외 사례연구를 통해 통합화 경향을 확인하고 통합할 정보와 비용의 측면에서 그 통합방안을 제시하였다. 또한 포스코의 그룹차원 정보관리시스템인 MIPOS 정보자료시스템을 국내의 대표적인 통합화 사례로서 제시하였다. As advanced information technology has been developing rapidly, libraries are moving from an ownership-centered information service toward information access service. Consequently, integrated automation systems of information centers that give not only cataloging information of their own collections but also various electronic information have appeared. In this study, a model of integrated automation system of an information center is suggested in terms of information types and cost, by taking case studies of some domestic and foreign libraries. Furthermore, the MIPOS Information & Resource Center System of POSCO Group is introduced as a good example of integrated automation systems in Korea.

치과 종사자간의 색조 식별 능력

김자영,이임기,윤태호,안승근,박찬운,Kim Ja-Yeong,Lee Im-Gi,Yoon Tae-Ho,Ahn Seung-Geun,Park Charn-Woon 대한치과보철학회 2006 대한치과보철학회지 Vol.44 No.4

Statement of problem: Many factors influence shade determination in clinical practice and shade matching is highly affected by the viewing conditions. Purpose : This study investigated the differences in shade perception among distinct groups of dental personnel (10 prosthodontists, 10 general practitioners, 10 last-year dental students and 10 dental technicians) Material and method: Four groups of dental personnel were investigated. They were tested to eliminate color blindness. To compare shade selection ability, they were asked to match four test tabs of shades A3, B2, C2 and D4 (VITAPAN$^{(R)}$ Classical shade guide. The identification codes of the shade tabs were masked to prevent shade memory. ) against another full set of VITA$^{(R)}$ PAN$^{(R)}$ Classical shade guide under similar lighting conditions. Shade selections were randomly repeated five times every week and then the repeatability between dental personnel was evaluated. To compare value perception ability, they were asked to arrange randomly selected five test tabs (Bl, A2, D2, C3, A4) in descending order from the brightest to the darkest. To compare hue determination ability, they were asked to divide selected eight test tabs (n, A3, B2, B3, C2, C3, D2, D3) into four groups by manufacturer as follows : Group A-Reddish brown, Group B-Reddish yellow. Group C-Grey. Group D-Reddish grey. Results and conclusion : The obtained results were as follows : 1. For the value perception ability and hue determination ability. there was no significant difference among 4 groups: prosthodontists, general practitioners, dental students, dental technicians (P>.05). 2. For shade selection ability, the prosthodontists and dental technicians were significantly higher than dental students(P<.05). 3. The repeatability of selected shade in the dental technicians was significantly higher than that of general practitioners and dental students(P<.05). 4. The prosthodontists and dental technicians had significantly higher selection ability than dental students for shade B2 (P<.05).

여의도산책 - 나의 여름날은 다시 오지 않으리

김자영,Kim, Ja-Yeong 대한석유협회 2001 석유와 에너지 Vol.2001 No.7

일개 종합병원 의료종사자 직종별 표준주의 인지도와 수행도 비교

김자영,김복자,Kim, Ja Young,Kim, Bog Ja 한국중환자간호학회 2012 중환자간호학회지 Vol.5 No.2

Purpose: The purpose of this study was to explore health care workers awareness and performance of standard precautions. Methods: Participants were 296 health care workers including nurses, physicians, and medical technicians. Awareness and performance of standard precautions were measured with 4-point Likert scales. The data were analyzed with t-tests and one-way ANOVA by using SPSS 18.0. Results: The mean scores of awareness were 3.72 in nurses, 3.62 in physicians, and 3.47 in medical technicians. There was a significant difference of awareness by occupational classification (F=12.39, p<.001). The mean scores of performance of standard precautions were 3.45 in nurses, 3.19 in physicians, and 3.23 in medical technicians. There was a significant difference of performance by occupational classification (F=10.98, p<.001). In addition, the score of performance of standard precautions was significantly lower than that of awareness (t=11.89, p<.001). Conclusion: The results of this study indicated that awareness and performance of standard precautions were different by occupational classification. To improve performance of standard precautions in hospitals, it is necessary to provide a distinct infection control program by occupational classification.

2종(種) 대황(大黃)의 외부(外部) 및 내외부형태(內外部形態)

김자영,최고야,김홍준,주영승,Kim, Ja-Young,Choi, Go-Ya,Kim, Hong-Jun,Ju, Young-Sung 한국한의학연구원 2006 한국한의학연구원논문집 Vol.12 No.1

The Following is a list of specific external and internal morphology of Rheum palmatum L. and R. undulatum L. in Rhei Rhizoma. 1. For the original plants of Rhei Rhizoma in the literatures. 18 plants are reported. 2. The external characteristics of original plant : R. palmatum has a large palmate leaf, its petiole of radical leaf has a simple bristle and its flower is purple and pink color. Whereas R. undulatum has a medium ovate leaf, its petiole of radical leaf is purphish, its stem leaf surrounds a half of stem and its flower is yellowish white color. 3. The character of herbal states : a. diameter and size-- R. palmaum is bigger and heavier than R. undulatum. b. in section--R. palmatum is dark brown color, R. undulatum is bright brown color Fibrovascular bundle is arranged in circle shape in R. patmatum. R. undulatum shows a distingushed wheel shape. 4. The internal characteristics : R. palmatum has a large intercellular space of cork layer, its cambium is clear and a xylem medullary ray is comparatively tight, Whereas R. undulatum has a tight intercettular space of cork layer., its cambium is a few clear and xylem medullary ray is verty tight. As these results, additional study is required to distinguish herbs and their effect among many kinds of same genus-degree of relatedness.

회원조경을 다녀와서 - 본 협회 이건성 이사님 농장을 다녀와서...

김자영,Kim, Ja-Yeong 한국조경수협회 2009 造景樹 Vol.111 No.-

조경현장을 찾아서 - 광주 전남서부 지부 초청 우수공원 참관기

김자영,Kim, Ja-Yeong 한국조경수협회 2009 造景樹 Vol.112 No.-

수영장 안전위생 기준 제도 개선 방안

김자영 ( Kim Ja-young ),김미옥 ( Kim Mi-ok ),김주영 ( Kim Joo-young ),김일광 ( Kim Il-gwang ) 한국체육대학교 체육과학연구소 2020 스포츠사이언스 Vol.38 No.2

본 연구의 목적은 수영장 이용자의 안전사고 예방과 관리자에 의한 시설의 효율적 관리를 위한 안전위생기준을 마련하고, 「체육시설 설치 및 이용에 관한 법률」의 수영장 관련법 개정에 관한 기준안을 마련하고 마련된 기준을 토대로 개정(안)을 제시하는 데 있다. 연구방법은 해외 시설(독일, 미국, 뉴질랜드, 일본 등)에 대한 문헌연구 및 분석, 수질 및 안전, 국내외 사례연구, 심층면접 및 전문가회의 등을 활용했다. 최종 제안된 수영장 안전위생기준 개선안은 이번 조사를 바탕으로 시설, 안전위생(수질 포함), 선도자, 행정처분 등 4개 분야에서 제시됐다. 이러한 제도 개선을 통해 수영장 안전사고 및 시설물의 예방·관리, 안전한 생활체육 환경 제공, 생활체육 참여 증대에 기여하고자 한다. The purpose of this study is to draw up safety and hygiene standards for the prevention of safety accidents for pool users and the efficient management of facilities by managers, and to present grounds and amendments (proposals) for the revision of swimming pool-related laws of the Sports Facilities Installation and Utilization Act. The research methods utilized literature research, data collection and analysis on facilities overseas (Germany, the United States, New Zealand, Japan, etc.) and water quality and safety, domestic and foreign case studies, in-depth interviews and expert meetings. The final proposed improvement of the safety hygiene standards for swimming pools was presented in four areas, including facilities, safety sanitation (including water quality), leaders, and administrative disposition, based on the survey. Through such system improvement, the company aims to prevent and manage swimming pool safety accidents and facilities, provide a safe living sports environment, and contribute to increasing participation in daily sports.

원발성 경화성 담관염 28예의 임상상

김자영 ( Kim Ja Yeong ),김명환 ( Kim Myeong Hwan ),김성두 ( Kim Seong Du ),이장한 ( Lee Jang Han ),안성기 ( An Seong Gi ),박도현 ( Park Do Hyeon ),송문희 ( Song Mun Hui ),이상수 ( Lee Sang Su ),서동완 ( Seo Dong Wan ),이성구 ( Lee 대한내과학회 2004 대한내과학회지 Vol.66 No.2

목적 : 원발성 경화성 담관염은 간내 또는 간외 담관의 다발성 협착을 특징으로 하는 원인 미상의 만성 염증성 질환이다. 이 질환은 담관벽의 점진적인 섬유화를 초래하여 담즙성 간경변을 거쳐 결국 간부전으로 진행한다. 저자들은 본원에서 경험한 28예의 원발성 경화성 담관염의 임상상을 분석하였다. 대상 및 방법 : 1991년부터 2003년 8월 사이에 서울 아산 병원에서 원발성 경화성 담관염으로 진단된 28명의 임상적, 혈청학적, 방사선학적, 조직학적 특징을 Backgroud : Primary sclerosing cholangitis (PSC) is a chronic progressive cholestatic hepatobiliary disease of unknown etiology, a characterized by inflammation, scarring and obliteration of bile ducts, eventually leading to biliary cirrhosis and liver fa