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철근이 보강된 변형경화형 시멘트 복합체의 직접인장 및 자기 감지특성
장아연 ( Jang Ah-yeon ),윤현도 ( Yun Hyun-do ),이건철 ( Lee Gun-cheol ),서수연 ( Seo Soo-yeon ) 한국구조물진단유지관리공학회 2019 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.23 No.2
최근 건설분야에서도 스마트(Smart)라는 개념을 도입한 재료 및 구조방식의 개발에 관한 관심이 고조되고 있다. 특히 기존 콘크리트와 같은 시멘트 복합체에 다양한 전도물질을 혼입하여 외력의 작용시 유발되는 변형을 시멘트 복합체의 저항변화로 평가하는 자기 감지형 건설재료 개발 연구가 활발히 진행되고 있다. 통상적으로 시멘트 복합체는 인장변형에 대한 저항능력이 낮기 때문에 주로 압축변형과 전기적인 저항특성의 상관성을 평가하는 연구 즉, 압축변형 감지능력을 갖는 시멘트 복합체 개발에 관한 연구가 대부분이었다. 본 연구에서는 직접인장하에서 0.5% 인장변형시까지 자기 감지능력을 갖는 변형 경화형 시멘트 복합체(SHCC)를 개발하고 또한 철근의 보강이 SHCC의 자기 감지능력에 끼치는 영향을 평가한다.
취약계층 지원주택 계획을 위한 주민참여디자인워크샵 의의
오아연(Oh, Ah-Yeon),이연숙(Lee, Yeun-Sook),김윤수(Kim, Yun-Su),박지선(Park, Ji-Seon) 한국실내디자인학회 2016 한국실내디자인학회 학술대회논문집 Vol.2016 No.05
In case of Korea where numerous houses have been supplied in short time due to rapid industrialization of its societies, as it had no time to have various considerations in proportion tosuch rapid speed, stereotype houses have been supplied massively. However, now it is time to supply qualitative housing after the long period of quantitative housing supplies. Furthermore, Korea confronts an era that it should seriously consider how quality of life can be improved through paradigm change. What is more, in case of its socially disadvantaged people, their opinions have not been reflected owing to top down housing supply method, thus causing diverse problems. It is necessary the dwelling should reflect the needs of prospect in gusers through their participation. The purpose of this study was to share the process of developing the public rental housing for the low income families with the participation of residents in the local community. The house was not conventional collective housing but supportive housing, thus needs the resident’s participation more necessarily. As method of study, user participated workshops were used. Houses developed through this process prevented and resolved the possible doubts and conflictions among the stakeholders. It is expected that the results of this study will contribute a lot to change the direction of housing supplies through housing development process that prevents the conflicts prior to construction and promotes there liability and trust transparent communication and two-way design process reflecting the residents’ opinions.
오아연(Oh, Ah-Yeon),이연숙(Lee, Yeun-Sook),장미선(Jang, Mi-Seon) 한국실내디자인학회 2016 한국실내디자인학회 학술대회논문집 Vol.2016 No.10
People in the vulnerable social class is exposed to harmful environments to their health so that their physical and psychological health may deteriorate easily and their quality of life may also deteriorate due to their financial difficulties and social alienation. Supportive housing needs to reflect the characteristics of healing residents through normal residential environments in comparison to other facilities or spaces. Therefore, the purpose of this study is to analyze the characteristics of healing design reflected in the cases of supportive housing. For such purpose, supportive housings among the winners of Top Ten Projects selected by the affiliated committee of the American Institute of Architects were selected primarily and 4 supportive housings targeting the elderly or the disabled that were expected to reflect the characteristics of healing design more were selected finally and the case analysis was carried out targeting the finally selected supportive housings. Unlike the precedent studies that discussed only healing characteristics in physical, psychological and social health aspects, the result of case analysis showed that the design characteristics related to economic health were reflected in the supportive housing cases in addition to 3 health characteristics discussed in the precedent studies. It is expected that the result of this study will be utilized as preliminary data for the establishment of environments for improving the healing performance of supportive housing through the analysis of characteristics of healing design reflected at the time of planning the supportive housing.
가방 끈 길이 차이가 상지 근활성도, 압력중심 및 체중분포에 미치는 영향
이현주,김민수,김아연,강현구,태기식,Lee, Hyun Ju,Kim, Min Su,Kim, Ah Yeon,kang, Hyun Gu,Tae, Ki Sik 대한의용생체공학회 2021 의공학회지 Vol.42 No.5
The purpose of this study was to investigate the effect on the activity of the upper trapezius and erector spinae according to the length difference of the backpack using electromyogram (EMG). We also conducted a study comparing the center of pressure (COP) and weight distribution before and after using Wii® balance board. Thirty individuals were randomly assigned to the experimental group (n=14) wearing a backpack with a short right strap length and a control group (n=16) wearing a backpack with the same strap length. Data were collected by dividing into groups, carring a 15% weight backpack and walking for 20 minutes on a treadmill. As a result of analyzing the EMG data, there was no significant change in the upper extremity muscle activity of the control group, but it was significantly decreased in the right upper trapezius activity of the experimental group (p<0.05). In addition, there was a significant change of COP in the experimental group (p<0.05), but there was no significant difference of the weight distribution in both groups. Recognizing mechanical changes in the body that may occur due to the asymmetry of the strap length is thought to be helpful for systematic ergonomic intervention according to changes in the external environment in the future.