• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2009년도 춘계 종합학술대회 논문집
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• pp.488-490
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• 2009

3차원 지형 환경의 공간영상콘텐츠는 국토계획 및 통신설비계획, 철도건설, 시공, 입체적인 유비쿼터스 도시 구현, 안전 및 방재 등에서 많은 요구와 그 중요성이 크게 부각되고 있다. 국내 운행하고 있는 국토 및 도시지역의 지형공간정보를 가장 정밀하게 촬영하기 위하여 항공기에 고해상도 디지털 지상촬영 카메라를 탑재하여 원하는 지역에 대한 항공사진 촬영을 실시하여 지상의 기준점에 맞도록 기하보정을 실시하고, 각 지형에 수직대응 방향으로의 조건식을 적용한 정사보정작업을 거쳐 정확한 지도영상을 작성하였다. 지형공간위의 다양한 지형정보를 직접 혹은 간접으로 수집하여 데이터베이스화하기 위한 정확한 초기 공간 자료의 수집, 저장, 편집, 조작 및 응용기술의 데이터베이스 구축은 도시 및 지역 계획 및 설계뿐만 아니라 관련 미래의 공간콘텐츠 구성을 위한 유비쿼터스 정보통신에서 크게 활용할 수 있을 것이다.

• 한국비블리아학회지
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• 제16권1호
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• pp.153-180
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• 2005

우리나라 공공도서관은 행정기관의 주 40시간 근무제 시행과 관련하여 근무환경의 개선을 통해 사서들의 삶의 질 향상을 염두에 두면서, 동시에 이용자에게 만족스런 정보서비스를 지속해야 하는 문제를 갖고있다. 이를 해결하기 위해 본 고에서는 도서관에서의 주 40시간 근무제에 대한 문제점 도출 및 대응 전략을 고찰하는 데에 연구목적을 두고자 한다. 이러한 연구목적을 달성하기 위해 사서, 이용자, 일반국민에 대한 의식조사 등을 수행하면 더욱 나은 결과를 기대할 수 있지만, 논리를 전개하는 과정에서 기존 자료를 활용하여 다음과 같은 사항을 세부적으로 조사?분석하고자 한다. 첫째, 우리나라 정부가 수립하여 시행하고 있는 행정기관 주 40시간 근무제 추진 계획의 구체적인 내용을 살펴본다. 둘째, 미국을 비롯한 외국의 공공도서관은 주 40시간 근무제 실시와 더불어 어떻게 도서관을 경영하고 있는지를 파악한다. 셋째, 우리나라 공공도서관은 주 40시간 근무제 실시에 따라 각각 시행중인 도서관 경영 실태를 분석한다. 넷째, 향후 정부가 금년 7월부터 주 40시간 근무제를 전면 실시할 경우에 대비하여 문화기반시설로서 공공도서관에서의 주 40시간 근무제 대응 전략을 모색한다.

• 한국정보통신학회논문지
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• 제6권8호
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• pp.1200-1205
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• 2002

세계무역기구(WTO)의 기본통신협상에 따라 다수의 통신사업자가 통신시장에 진입하고, 특히, 1999년부터는 공기업들도 자회사를 통해 기간통신사업 허가를 받아 자가통신설비를 활용할 수 있도록 규제가 완화되어 왔다. 정보통신서비스사업 진출입에 대한 규제완화와 국내 정보통신 산업의 급속한 발달에 힘입어 일부 공기업을 비롯한 자가망 보유 회사들은 기존 통신사업자들의 통신망이 충분히 설치된 이후에도 자체 수요에 대처한다는 명분을 앞세워 통신망 분야에 투자를 확대하고 있다. 이와 같은 자가전기통신설비 구축은 국내 통신사업구도에도 커다란 변수로 등장하고 있으며 외국 기업에도 영향을 미칠 것으로 예상된다. 그러므로 자가통신망에 대한 국가적 정책은 정보통신망의 효율적 구축, 중복·과잉투자 방지, 공정경쟁 보장, 회계분리, 자회사 설립, 통신사업 구조조정, 국가경쟁력 강화 등 여러 측면에서 종합적으로 고려되어야 한다. 따라서 본 연구에서는 자가전기통신설비 현황 및 실태와 자가전기통신설비 관련 정책을 살펴보고, 외국의 자가통신망 실태와 관련 법·제도 둥을 비교·분석하여 자가전기통신설비에 관련한 효율적인 개선 방안을 제시하였다.

• Structural Engineering and Mechanics
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• 제44권1호
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• pp.51-60
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• 2012

Concrete sleepers are essential components of the conventional railway. As support elements, sleepers are always subjective to a variety of time-dependent loads attributable to the train operations, either wheel or rail abnormalities. It has been observed that the sleepers may deteriorate due to these loads, inducing the formation of hairline cracks. There are two areas along the sleepers that are more prone to crack: the central and the rail seat sections. Several non-destructive methods have been developed to identify failures in structures. Health monitoring techniques are based on vibration responses measurements, which help engineers to identify the vibration-based damage or remotely monitor the sleeper health. In the present paper, the dynamic effects of the cracks in the vibration signatures of the railway pre-stressed concrete sleepers are investigated. The experimental modal analysis has been used to evaluate the modal bending changes in the vibration characteristics of the sleepers, differentiating between the central and the rail seat locations of the cracks. Modal parameters changes of the 'healthy' and cracked sleepers have been highlighted in terms of natural frequencies and modal damping. The paper concludes with a discussion of the most suitable failure indicator and it defines the vibration signatures of intact, central cracked and rail seat cracked sleepers.

• 전기학회논문지P
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• 제63권1호
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• pp.40-45
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• 2014

This study examines the system and process of battery stored energy in vehicles and suggest the effective area for the use of V2G(vehicle-to-grid) from Jeju Smart Grid Demonstration Project. V2G means technology of electric power transmission from the battery of electric-drive vehicles to state grid. As for the increasing of effectiveness for demand-side control, V2G is a very good alternative. In the U.S., the utilization of electric vehicles is under 40% on average. In this case, we can use he battery of electric vehicle as role of frequency regulation or generator of demand-side resource. V2G, which is the element of Smart Transportation, consists of electric vehicle battery, BMS(battery management system), OBC(on-board charger), charging infrastructure, NOC(network operating center) and TOC(total operation center). V2G application has been tested for frequency regulation to secure the economical efficiency in the United States. In this case, the battery cycle life is not verified its disadvantage. On the other hand, Demand Response is required by low c-rate of battery in electric vehicle and It can be small impact on the battery cycle life. This paper concludes business area of demand response is more useful than frequency regulation in V2G application of electric vehicles in Korea. This provides the opportunity to create a new business for power grid administrator with VPP(virtual power plant).

• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제24권3호
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• pp.49-57
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• 2018

Purpose: The increase in patients requiring hemodialysis has resulted in an increase dialysis-associated infections risk. but there are no Renal Dialysis unit design standard meet specified safety and quality standards. Therefore, appropriate Establish standards and legal regulation is important for the provision of initial certification and maintenance of facility, equipment, and human resource quality. Methods: Literature survey on the design guideline and standards of Renal Dialysis unit design in Korea, U.S, Germany, Singapore, Hongkong, Dubai. Results: There are no established standards for facilities in dialysis units in Korea. To prevent infections in dialysis patients, necessary establish standards. Considering the domestic and overseas Health-care facilities standards, the major factors to be considered in the medical environment for Renal Dialysis Unit are as follows. First, planning to separate Clean areas(treatment area) from contaminated areas(medical waste storage area). Second, ensure sufficient space and minimum separation distance. Although there may be differences depending on the circumstances of individual institutions, renal dialysis unit consider the space to prevent droplet transmission. Third, secure infrastructure of infection prevention such as sufficient amount of hand hygiene sinks. Hand washing facilities for staff within the Unit should be readily available. Hand hygiene sinks should be located to prevent water from splashing into the treatment area. Fourth, Heating, ventilation and air conditioning (HVAC) system for Renal Dialysis Unit is all about providing a safer environment for patients and staff. Implications: The results of this paper can be the basic data for the design of the Renal Dialysis Units and relevant regulations.

• 한국도서관정보학회지
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• 제11권
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• pp.143-173
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• 1984

This study has been done to review the historical development of the cataloging system of books with emphasis on those in England and the U. S. The findings can be summarized as follows: (1) In 1844, Sir Panizzi invented what seems to be the first of its kind in history to list the inventory systematically at the British Museum. It is believed to be a complete system consisting of 91 articles. (2) A comparatively systematic system was developed in America by Jewett. in 1852. Composed of only 39 articles, the system is considered a renovative one worked out with due regard to the infrastructure of a library. (3) In 1876, a classic system based on a lexicographical order was set up by Cutter. Rated as the best one that was designed by an individual, the theory has since exercised widespreading effects on cataloging. (4) American and British library scientists collaborated in printing several editions of numerous volumes on the principles of classification, but they are not believed fully successful in establishing a consistent and compressive system. Their efforts found significance rather in their being the first international collaboration and setting a foundation upon which the international system of today has been developed. (5) The ALA Rule, published concurrently in ALA and LC in 1949, had two parts in its classification, the list of authors and that of titles. Its scientific classification has completed the cataloging of books in its developmental stage. (6) The 1967 American-British Rules integrated the cataloging systems published under separate covers by authors and titles. The system as well as the 1961 Paris System has greatly contributed to the standardization of bibliographical description throughout the English-speaking countries. The International Standard Book Description standardized Bibliographic system has enabled the librarians in different countries to exchange their bibliographical sources easily, helped to overcome the language barrier in listing and contributed to the efficient reading of bibliographical records through machines. (7) The second edition of the Angelo-American cataloging Rules, promulgated in 1978 under the influence of the international standard bibliographical description, was the one in which all the previous Rules were revised to have their strong points. The adoption of punctuation system to employ the computerized data processing and the standardization of description are expected to improve the cataloging system not only in the English speaking countries but in the Universal Bibliographic Control as well.

• 인터넷정보학회지
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• 제14권4호
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• pp.63-76
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• 2013

This short report introduces the general background why Brazil conference is being prepared and what topics would be undertaken and what goals are being taken into account. It overviews what differences from traditional telecommunication governance, internet governance has had in its historical development and how such differences had been formed from its technological differences and the regulatory policy shift from common carrier regulation to privatization. Moreover, the fact that open, voluntary, bottom-up, diverse stakeholder's participation had evolved throughout the historical development of the internet, had established the present multistakeholder governance model from technological standardization to addressing scheme policies. ICANN, which has governed internet addressing schemes since the earlier 2000s, had developed address policies including IANA function from Jon Postel and technical community's legacy management system into contract based formation between ICANN and gTLD, ccTLD registries. And it made dispute resolution policies responding to trademark disputes and resolved gTLD monopoly issue by introducing new TLD generation and the separation of registry and registar. However, there had been challenges on the legitimacy of ICANN due to its dependency on the Federal Government of the U.S. particularly in its oversight role over ICANN and IANA contract. WSIS raised up internet governance issues including addressing governance, and set up IGF as a discussion platform for multistakeholders to discuss and share all views on other internet related public policies. IGF's loose and non-binding discussion once frustrated governments and other stakeholders, but more focused discussion and visible outcomes have consolidated its unique role for internet governance discourses. Particularly, IGF addressed many emerging internet related issues like cybersecurity, privacy, net neuratlity, development related issues. WTPF of 2013, after WCIT debate on whether traditional telecommunication regulation could be applied to internet infrastructure, suggested other governance issues such as the transition to ipv6, IXP coordination etc. How to make sure the legitimacy of internet addressing governance and how and where other internet related public policies could be undertaken are fundamental tasks for internet governance. Brazil conference, which has been motivated by the breakdown of trust in internet governance from NSA mass surveillance revealed by Snowden, faces these questions and try to make consensus on principles, institutions and roadmap for internet governance in multistakeholder participation way.

• 한국산학기술학회논문지
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• 제14권11호
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• pp.5698-5706
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• 2013

본 연구는 대학생의 건강정보기술에 대한 수용 정도와 건강정보기술 수용의도 영향요인을 파악하여 유 헬스케어 활성화 방안을 제시하고자 시도되었다. 대상은 D시와 K도에 재학 중인 대학생 623명이며, 자료 수집은 2012년 11월에서 12월까지 하였다. 연구방법은 유비쿼터스 건강관리서비스 이용 측정도구를 사용하여 설문 조사, 분석한 횡단, 서술적 상관관계연구이다. 건강정보 습득경로는 응답자의 48.5%가 인터넷으로 건강정보서비스를 이용하는 것으로 나타났다. 대학생의 일반적인 특성은 건강정보기술 수용요인 중 민감성 변량에 대해 11% 설명력을 보였지만 나머지 요인들은 0.5~4.7%로 다소 낮았다. 여성, 의료전공, 효능감, 사용의도가 정적으로, 건강신념은 부적으로 건강정보기술 수용의도에 유의한 영향을 미치는 것으로 나타났다.

• Smart Structures and Systems
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• 제6권3호
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• pp.197-209
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• 2010

The structural state of a bridge is currently examined by visual inspection or by wired sensor techniques, which are relatively expensive, vulnerable to inclement conditions, and time consuming to undertake. In contrast, wireless sensor networks are easy to deploy and flexible in application so that the network can adjust to the individual structure. Different sensing techniques have been used with such networks, but the acoustic emission technique has rarely been utilized. With the use of acoustic emission (AE) techniques it is possible to detect internal structural damage, from cracks propagating during the routine use of a structure, e.g. breakage of prestressing wires. To date, AE data analysis techniques are not appropriate for the requirements of a wireless network due to the very exact time synchronization needed between multiple sensors, and power consumption issues. To unleash the power of the acoustic emission technique on large, extended structures, recording and local analysis techniques need better algorithms to handle and reduce the immense amount of data generated. Preliminary results from utilizing a new concept called Acoustic Emission Array Processing to locally reduce data to information are presented. Results show that the azimuthal location of a seismic source can be successfully identified, using an array of six to eight poor-quality AE sensors arranged in a circular array approximately 200 mm in diameter. AE beamforming only requires very fine time synchronization of the sensors within a single array, relative timing between sensors of $1{\mu}s$ can easily be performed by a single Mote servicing the array. The method concentrates the essence of six to eight extended waveforms into a single value to be sent through the wireless network, resulting in power savings by avoiding extended radio transmission.