센서 네트워크에서 코드분배 메커니즘에 대한 조사 연구

김미희,김지선,김지현,임지영,채기준,Kim, Mi-Hui,Kim, Ji-Sun,Kim, Jee-Hyun,Lim, Ji-Young,Chae, Ki-Joon 한국정보처리학회 2009 정보처리학회논문지 C : 정보통신,정보보안 Vol.16 No.4

센서 네트워크는 유비쿼터스 컴퓨팅 구현을 위한 기반 네트워크 중의 하나로 그 중요성이 점차 부각되고 있으며 센서 네트워크 및 노드 특성상 효율성 및 안전성을 제공하기 위한 다양한 기반 기술이 연구되고 있다. 특히 센서 네트워크는 많은 노드 수로 구성되어 있고 많은 응용에서 외부 환경에 무작위 배포로 배치되어 사용되므로 센서 노드에서 실행되는 코드의 기능에 대한 업그레이드나 버그 수정을 위한 코드분배 방법이 원격으로 수행되어야 하며 무선 환경으로 실행코드를 배포해야 하므로 안전성이 특히 중요한 분야라고 할 수 있다. 본 논문에서는 최근 센서 네트워크에서의 새로운 연구 주제로 주목 받고 있는 이러한코드분배 메커니즘들을 조사하여 요구 사항 및 그 특징에 대하여 비교 분석하였다. 이를 통해 센서 네트워크에서의 코드분배 메커니즘에 대한 향후 연구 방향을 제시함으로써 효율성 및 안정성을 제공할 수 있는 코드분배에 관한 연구를 촉진하고 센서 네트워크의 활용도를 제고하자 한다. The sensor network is highlighted because it is one of the essentialbase networks in the ubiquitous computing realization. Researches for providing security and efficiency are being perfomed in the various isuues because of the characteristics of sensor nodes and sensor networks. Recently, code dissemination mechanism is recognized as an important research issue since sensor nodes are in the need of updating new software or the need of modifying bugs in dynamically. Generally lots of nodes are in the sensor networks and they are ramdomly deployed in hostile environments. Thus it is especially important that the code dissemination from the base station to nodes should be processed efficienctly and securely. In this paper, we check up the recent existing code dissemination mechanisms, and comparatively analyze the requirements of the code dissemination and the characteristicsof existing mechanisms. Through the analysis, we present future research issues for the code dissemination area. This research can expedite the research on the code dissemination and improve the usability of sensor networks with efficiency and security.

다가구 매입 임대주택 입주자 주거 실태 및 의식조사

김미희,이경희,김영주,채혜원,김진화,Kim Mi-Hee,Lee Kyung-Rhee,Kim Young-Joo,Chae Hye-Won,Kim Jin-Hwa 한국주거학회 2006 한국주거학회 논문집 Vol.17 No.4

As a new way of stabilizing the housing for the urban poor, the Korean government proposed 'Dagagu' Housing Purchase and Public Rental Program (DPPRP) and implemented a pilot program in 2004. The purpose of this study was to find out whether DPPRP could be an alternative measure to solve the housing problems facing the urban poor. Physical aspects and community conditions of 'Dagagu' housing purchased by the government will be evaluated. The changes in the tenants' perception of the quality of housing after moving in the current dwellings will be studied. 46 households were temporarily selected, who moved in the purchased public rental housing in 5 districts (DPPRP pilot area). And among them, 32 households were designated as the final subjects, which could do the interview. The surveyors made door-to-door visits to tenants' houses and conducted in-depth interview by using a questionnaire The effects of 'Dagagu' Housing Purchase and Public Rental Program can be summarized according to housing environment aspects and economic aspects as follows: After moving in the public rental housing, the respondents saw improvements in overall housing environment and were satisfied with the current housing. According to a survey on the rental fee before and after moving in public rental housing, the rental fee of the latter had greatly declined. Given that the quality of previous housing was inferior to the current housing, the lessened rental burden was very meaningful.

중소규모 아파트 거주자의 대표적인 주생활행태 - 3침실형 30평형대를 대상으로 -

김미희,이유미,Kim Mi-Hee,Lee You-Mi 한국주거학회 2005 한국주거학회 논문집 Vol.16 No.6

The purpose of this study was to explore behavioral patterns on residential spaces such as the patterns of residential space usage and perception on residential spaces. A questionnaire survey and interview were conducted with 426 residents living in apartment with 3 bedrooms, stairway access, and 3-bay style in the City of Seoul, Busan, and Gwangju, during the month of September in 2004. The data was analyzed with frequency, factor analysis by using the SPSS 10.0 for windows, and with proc iml by using SAS. The major findings of this study were that: 1) The most typical activities in the Anbang are $\ulcorner$sleeping and getting dressed$\lrcorner$, $\ulcorner$family communication and T.V. watching$\lrcorner$, and $\ulcorner$private affairs$\lrcorner$ ; Anbang(master bedroom) has been perceived and used as couple's private area. 2) Living room was used as a multi-purpose room carrying out various activities such as $\ulcorner$family interaction$\lrcorner$, $\ulcorner$entertaining guest with meals$\lrcorner$, $\ulcorner$children's private affairs$\lrcorner$, $\ulcorner$private affairs$\lrcorner$, $\ulcorner$hobby activities$\lrcorner$, $\ulcorner$clothes management$\lrcorner$, $\ulcorner$couple interaction$\lrcorner$, and $\ulcorner$occasions$\lrcorner$. 3) The representative patterns of activities in dining-kitchen was food $\ulcorner$preparation$\lrcorner$, and the need for social interaction in DK has been growing. The patterns of residential space usages can be used to develop and evaluate the unit plan of Korean middle-size apartment.

대학생의 기숙사 실내공간에 대한 주거만족도 - 광주.전남지역을 중심으로 -

김미희,오지영,Kim, Mi-Hee,Oh, Ji-Young 한국주거학회 2008 한국주거학회 논문집 Vol.19 No.6

This study examined the actual use and users‘ satisfaction with the university dormitories in Gwangju and Chonnam and analyse the related variables that affect on them. Self-administered questionnaires were provided to 200 university students from Gwangju and the Chonnam area. The collected data was used to conduct comparative and descriptive statistical analysis: T-test Below are the study findings. Female students express more satisfaction with community affinity than male students in the satisfaction about socio-psychological environment. Students residing in the rooms for 2 persons express more satisfaction with the division of private space with common space, study appropriateness etc. than those residing in the rooms for 4 persons. Students residing in the cluster-type rooms express more satisfaction with the division of private space with common spaces study appropriateness and relationship with other students in other rooms etc. In relation to the room environment, female students express less dissatisfaction with the noise than male students. Students residing in the rooms for 2 persons express more satisfaction with the room size, interior temperature pleasantness, brightness etc. than those residing the in rooms for 4 persons. Students residing in the cluster-type rooms express more satisfaction with the bed size, the condition of interior finishing, interior temperature pleasantness, brightness and interior air pleasantness etc. than those residing in unit-rooms. In relation to common using environment, male students express more satisfaction with the library than female students. And students residing in the rooms for 4 persons and those residing in the cluster-type rooms express more satisfaction with lounge than those residing in the rooms for 2 persons and those residing in the unit-rooms. Organizing the university domitory planning according to the students' demands, based on this study, the change to general function of domitory in sleeping, studying, leisure activity and culture acitivity is needed. Interior environment technical factor of interior air pleasantness and noise should be improved.

회원작품 - 이이헌(怡里軒)

김미희,Kim, Mihee 대한건축사협회 2021 建築士 Vol.622 No.-

다가구매입임대주택과 영구임대주택 거주자의 주거환경 및 지역사회복지서비스 이용 실태

김미희,노세희,Kim, Mi-Hee,Noh, Se-Hee 한국주거학회 2011 한국주거학회 논문집 Vol.22 No.4

The purpose of this study was to gather baseline data to be used for improving housing environments and developing welfare policies for low-income groups by identifying the similarities and differences in housing environmental conditions and in the usages of community welfare services between the dwellers of Da-Ka-Gu rental housing and those of permanent rental apartment. This multifaceted diagnosis currently being undertaken can be utilized through the lowincome housing planning and welfare policies as the basis for future policy formulation. Self-administered questionnaires and interviews were carried out by 212 dwellers in Da-Ka-Gu rental housing (104) and permanent rental apartments (108) in the city of Gwangju from July to October of 2010. The main findings are as follows: 1. The dwellers living in both Da-Ka-Gu rental housing and permanent rental apartments are satisfied with their housing environment. Specifically, a higher satisfaction with transportation and a lower satisfaction with neighbor's inter-relationships were evident. The dwellers of Da-Ka-Gu rental housing appear to be more satisfied with community spaces and housing management than those of the permanent rental apartments, whereas the latter appear to be less satisfied with the noise of the housing complex than the former. 2. Of the community welfare service programs, a higher usage is shown for meals service, free health screenings, home repair, and after-school learning programs among all residents in the two housing types. In particular, for the residents of Da-Ka-Gu rental housing, the children's education and parent education programs are more popular, whereas for those of the permanent rental apartments, the housekeeping services and health services utilization are highest.

정량 광유도 형광법(QLF)과 광활성제를 이용한 초기 치아우식증의 진단

김미희,이상호,이난영,Kim, Mihee,Lee, Sangho,Lee, Nanyoung 대한소아치과학회 2015 大韓小兒齒科學會誌 Vol.42 No.3

본 연구의 목적은 건전 법랑질과 우식 병소의 형광 차이를 증진시켜 QLF의 영상학적인 진단강도를 높이고, QLF로 촬영한 이미지 상에서 착색과 우식병소를 감별하기 위해 형광 염색제인 플루오레세인나트륨을 접목하여 사람 치아의 법랑질 표면에 유발된 초기 우식병소를 평가하는데 있다. 치아우식증이나 균열이 없는 최근 발거된 소구치 및 제3대구치를 대상으로 하여 치아의 평활면을 $6mm{\times}3mm{\times}3mm$ 크기로 절단한 후 아크릴 주형에 매몰하였고, 시편 표면적의 1/2에 nail varnish를 도포하여 대조군으로 설정하였다. 시편은 무작위로 15개씩 총 6개 탈회그룹(6, 12, 24, 48, 72, 96시간)으로 나누었다. 시편을 각 시간에 맞게 탈회시키고 생리 식염수로 세척한 후 QLF-D를 이용하여 탈회 정도(${\Delta}F$)를 측정하고 0.075% 플루오레세인나트륨을 적용한 후 세척하고 ${\Delta}F$ 값을 측정하여 그 값을 비교하였다. 시편의 중앙 부위를 삭제하고 연마하여 주사전자현미경 상으로 영상을 저장한 후 병소 깊이를 측정하였다. QLF를 이용하여 관찰한 우식병소는 건전 법랑질보다 어둡게, 플루오레세인나트륨을 도포한 후 QLF로 관찰한 우식병소는 건전 법랑질보다 밝게 관찰되었으며 탈회시간이 증가함에 따라 형광염료는 더 많이 침투하였다. 플루오레세인나트륨을 적용한 후 측정한 ${\Delta}F$ 값은 염색 전과 비교하여 모두 증가하였다(p < 0.05). QLF 수치와 병소 깊이는 높은 상관관계를 보였고 회귀분석을 통해 선형 방정식을 추출하였다. 따라서 플루오레세인나트륨을 접목시킨 QLF 측정은 임상적으로 초기우식을 감지하고 분류하는데 기여할 수 있을 것이며, QLF로 촬영한 이미지에서 우식병소와 착색을 감별하는데 도움을 줄 것이다. This study used sodium fluorescein to improve imaging diagnostic ability by increasing the fluorescence difference between sound enamel and caries lesions. It also made it easier to discriminate between stain and caries lesions using quantitative light-induced fluorescence (QLF). Half of the specimen surface was covered with nail varnish as a control. Specimens were divided randomly in six decalcification groups and decalcified for different lengths of time. Then, ${\Delta}F$ was measured using QLF-D. After applying 0.075% sodium fluorescein, we measured ${\Delta}F$ again and compared it with the initial value. After cutting the central portion of the specimen, we measured the lesion depth using scanning electron microscopy. The lesion surfaces observed with QLF were darker than normal enamel, whereas they were lighter than normal enamel after applying fluorescein. Longer decalcification time was associated with greater fluorescent dye penetration. The ${\Delta}F$ measured after applying fluorescein was higher than the initial value (p < 0.05). Due to QLF measurement using fluorescein being more sensitive for diagnosing early decalcification, this approach will enable early diagnosis of dental caries before the cavity formation stage, allowing the treatment of early caries lesions. With QLF and sodium fluorescein, we can easily discriminate between stain and caries lesions.

회원작품 - 송학리의 생각

김미희,고석홍,Kim, Mihee,Go, Seokhong 대한건축사협회 2021 建築士 Vol.631 No.-

회원작품 - N주택

김미희,고석홍,Kim, Mihee,Go, Seokhong 대한건축사협회 2021 建築士 Vol.626 No.-

회원작품 - 정중헌

김미희,서현,Kim, Mihee,Seo, Hyun 대한건축사협회 2020 建築士 Vol.612 No.-