• 정보보호학회논문지
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• 제18권4호
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• pp.3-15
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• 2008

검색 가능 암호 시스템 (Searchable Encryption)은 암호화된 데이터에서 키워드를 검색하는 문제를 해결하기 위하여 2000년에 Song 등에 의해서 처음으로 제안되었다. 지금까지 대칭키 암호화 방식과 공개키 암호화 방식에 기반하는 여러 가지 검색 가능 암호 시스템이 제안되었으나, 공개키 암호화 방식에 기반한 기존의 기법들은 암호화 된 문서의 검색을 위해 서버에서 저장해야 하는 인덱스들의 크기가 키워드 개수에 비례하여 선형적으로 증가하는 단점을 가진다. 본 논문에서는 공개키 기반 검색 가능 암호 시스템에서 서버에서 저장하는 인덱스의 길이를 줄이기 위해 Bloom Filter를 적용하는 방법을 제안하고, Boneh 등이 제안한 PEKS(Public key Encryption with Keyword Search)에 제안한 방법을 적용하여, 메모리 측면에서 그 효율성을 분석한다.

• 한국비블리아학회지
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• 제33권1호
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• pp.499-519
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• 2022

본 연구에서는 미래의 공공도서관의 역할 및 기능에 대한 이용자와 사서의 인식을 설문조사를 통해 실증적으로 분석하고, 이를 기반으로 미래 공공도서관의 발전 방향을 수립하는데 고려해야 하는 사항들을 제언하였다. 분석 결과, 사서와 이용자 모두 콘텐츠가 미래 공공도서관의 운영에 있어서 가장 중요한 것으로 나타났다. 또한 이용자들은 사서에 비해 정보서비스의 중요성을 보다 높게 인식하는 것으로 나타나, 미래 공공도서관에서는 다양한 정보서비스의 개발이 필요함을 보여주고 있다. 반면 최신 정보기술의 도입은 미래 공공도서관에서 상대적으로 그 중요성에 대한 인식이 낮게 나타나, 정보기술의 도입보다는 콘텐츠의 이용이나 정보요구를 충족시킬 수 있는 다양한 경로와 도구의 마련이 보다 중요한 것으로 나타났다.

• 한국실내디자인학회논문집
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• 제38호
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• pp.182-191
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• 2003

Until now, the carriage's design has been performed by built-carriage engineers in urban railway company without the notion of railway design. Furthermore, there is no prominent change the shape of exterior and interior design between the 1970's trains and the latest one. In terms of the notion of interior space, there are a lot of differences between Oriental and Western, also region of each countries. Especially, Among Orientals, Korean is not good at utilizing the small space and react effectively as compared to Japanese. Therefore, the interior space of public transportation needs to be relatively developed to highly reasonable level in Korea. The purpose of this paper is to apply vernacular design elements for developing interior design in Korean lightrail, which is the next generation public transportation. In order to develope ideal interior design, the interior layout in carriage considers the emotional aspect as well as functional one. Also, the research of vernacular design in urban train can provide national character and traditional design and can make a success in a practical use and a visual effect. This study focused on the application of vernacular design elements for developing the design-processed model will be proposed the outline of interior layout and the shape of interior trims in the public transportation in Korea.

• 한국도서관정보학회지
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• 제27권
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• pp.573-599
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• 1997

The purpose of this research was to study the merits and barriers to successful school and public library cooperation in the city of Seoul and to obtain perspective and the basic data used to implement practical cooperative measures. A questionnaire survey was conducted for 22 public libraries in city of Seoul concerning both positive and negative aspect of cooperation between two types of libraries. Based on the survey results, the following conclusions and recommendations are made ; 1) The librarians recognized the necessity of cooperation that promote efficiency of library operation and also contribute toward local community development. 2) The librarians are agreeable to the cooperative service and the institutional cooperation will prevent redundancy of collection development and will make variety of book selection possible. 3) The cooperation will not result in manpower reduction or budget saving. 4) Inconvenience due to distance between two types of library is anticipated. 5) In order to develop the skills and capabilities of the librarians, it is desirable to offer reeducational program and o n.0, pportunities to attend conferences and meetings. 6) The library user orientation program is to be held regularly. 7) It is necessary to make policy statement of library cooperation in order to maintain autonomy of each library. 8) The establishment of branch libraries and moving libraries under the educational district is recommended.

• Architectural research
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• 제14권4호
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• pp.133-141
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• 2012

The research started from the consideration that, although many aspects of the Milanese Early Renaissance are well known today, thanks to a vast literature, only few studies, so far, have paid attention to the ordinary world of architectural work - and its obscure protagonists - of this area and this period. Moving from the belief that this topic is crucial for a complete understanding of the 15th century architectural world, characterized by a progressive overlapping of roles and responsibilities in the worksites, this study aims to provide a contribution to expand the understanding of this matter, by focusing on a particular aspect of it: the role of the public administration in the architectural activity. In particular, the paper analyzes the characteristics of the "Office of the engineers of the Municipality of Milan", one of the major public architectural institution of the Duchy of Milan in the 15th century. Through an extensive archival survey, conducted in the major archives of Milan and Lombardy, the research achieves two main findings: a) the reconstruction of the complete Office staff throughout the 15th century and, b) an outline of the role and identity of the Office and its officers, through the elaboration of data collected. In particular, professional roles, technical duties, cultural background and tasks of the officers, together with Office management, appointment procedures and salary conditions are highlighted. This research, not meant as an ultimate study on the topic discussed, is intended to provide some material and reference points for further researches that will aim to expand the understanding of this matter.

• 한국시스템다이내믹스연구
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• 제14권3호
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• pp.105-134
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• 2013

Electrical construction business has public and professional characters. It may require appropriate interventions of the government because these business activities stand for not only profit-seeking competition, but also supplies of one of the key functions in our society. In other words, public benefit and private benefit are still in existence. The government therefore considers such an aspect of public importance of the business sector and needs to plan to adjust technical and engineering manpower of this market. This study focuses on the imbalance for labor supply and demand of technical engineer in electrical construction business. A system dynamics analysis is applied to understand and simulate the imbalance as a soft approach. It has the merit of causal loop diagram to alleviate the limitation of data lack problem. We find that excess demand is expected from 2010 to 2011, and excess supply is predicted from 2012 to 2021 about the manpower of technical engineer. It shows considerable disagreement between the supply and demand of human resource. So we suggest that it is strong necessity to construct statistics infrastructure for a manpower supply and demand plan.

• 한국실내디자인학회논문집
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• 제18권3호
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• pp.57-65
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• 2009

Library is a communication channel between book and human. Specially public library furniture plays an important role from every aspect in information materials and users, among users and in relationship between library managers and users. This study defined library furniture as a communication channel which connects library materials and users and was based on 35 local libraries and 12 overseas libraries. The author studied major elements and characteristics which constitute communication types among storage furniture, furniture in reading areas and furniture in digital reading area. The followings are the results from the study. First, storage furniture should be designed by reflecting characteristics of library materials and for effective delivering to the users. Therefore utmost communication can be made by searching for various designs in book-shelves and effective manner of display. Secondly, furniture in reading areas should support various users' needs from customized browsing to long hour studying and there should be properly supported for private space and correspondent reading postures. The third, there are needs for design conditions to support privacy and for comfort from long hour reading and mobility out of posture change in digital reading areas. The fourth, there should be ergonomically designed furniture plan and surroundings in public library which can boost various reading postures. Also furniture plan should be done by considering users' bodies and eyes orientations which can result in improved power of concentration.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2006년도 추계학술대회 논문집
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• pp.1567-1574
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• 2006

To prevent safety accidents such as injury or death from falling by blocking platforms from trains, the Seoul Metropolitan Subway Corp. have gradually installed screen doors in platforms of 115 subway stations in Seoul on lines 1, 2, 3, and 4. Installation in nine areas among those has been completed and screen doors are being operated as a model operation. Traffic signs should be clear for users. The essential functions of signs should be fully investigated from the aspect of user as well as the visual beauty and recognition. Signs should be able to provide users with information regarding location, position, directions, etc. Particularly, safety and convenient signs should be visually and sensually correlated. However, the entire screen doors in platforms installed in line 2 subway in Seoul are used for commercial advertisement, consequently, the functions and roles as public signs are not fulfilled aggravating inconvenience for users. In this study, cases have been studied to investigate requirements for user-oriented sign system in platform and public sign space to fulfill the functions of sign system in platform. Using an anthropometry approach, the study aimed to obtain the space to install the sign system and to systemize necessary and sufficient conditions for user-oriented system for platform in which screen doors have been installed using. The study suggests fundamental information to obtain the space of public sign system on the entire screen door.

• 한국실내디자인학회논문집
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• 제16권6호
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• pp.181-188
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• 2007

The existing art museums existed for preservation and exhibition of collected material and the work which has artistic value. But today the art museum is not just for preservation and exhibition. It takes charge of public education as opened place to public. Further, it wants to be the art museum that the visitors who visit the art museum can enjoy and participate. The role change of like this is judged with the inevitable result which follows in many social demand. And increase with interest of leisure and culture life and continued demand for education, the role of modern art museum is becoming wider. Llike this, to accomplish these roles, space configuration of the modern art museum is changing. In the future, to meet more social demands and to solve flexibly, the modern art museum must concern more spacial efforts. Therefore, to grasp the change and the aspect of modern art museum, this study analyzes the Jeonbuk Province Art Museum, the Gyeongnam Art Museum and the Gyeonggido Museum of Art, They are most recently opened museum after 2000. To grasp space configuration of these museums, space syntax was used. And with the result which is analyzed, as grasps the problem and suggest an alternative idea, it can suggest advanced and proper direction.

• 한국철도학회논문집
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• 제10권3호
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• pp.290-295
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• 2007

The Seoul Metropolitan Subway Corp. have gradually installed screen doors in platforms of 115 subway stations in Seoul on lines 1, 2, 3, and 4. Installation in nine areas among those has been completed and screen doors are being operated as a model operation. Traffic signs should be clear for users. The essential functions of signs should be fully investigated from the aspect of user as well as the visual beauty and recognition. Signs should be able to provide users with information regarding location, position, directions, etc. Particularly, safety and convenient signs should be visually and sensually correlated. However, the entire screen doors in platforms installed in line 2 subway in Seoul are used for commercial advertisement, consequently, the functions and roles as public signs are not fulfilled aggravating inconvenience for users. In this study, cases have been studied to investigate requirements for user-oriented sign system in platform and public sign space to fulfill the functions of sign system in platform. Using an anthropometry approach, the study aimed to obtain the space to install the sign system and to systemize necessary and sufficient conditions for user-oriented system for platform in which screen doors have been installed using. The study suggests fundamental information to obtain the space of public sign system on the entire screen door.