• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 추계종합학술대회
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• pp.215-218
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• 2003

본 논문에서는 AIP프로토콜에서 사용자와 서비스 제공자간에 종단간 보안이 제공되는 무선 인터넷 플랫폼에 독립적인 프로토콜을 제안한다. 또한, ID 기반 공개키 암호 시스템을 적용한 Weil Pairing에 의해 세션키를 생성하여 온라인 인증기관이 인증과정에 참여하는 경우의 프로토콜에 대하여 안전성 및 효율성을 분석한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.797-799
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• 2012

The cognitive radio (CR) network has been studied in the form of open source by vast number of communities, and the potential expectation is very high since the CR is based on reprogrammable platform. However, as the peer-to-peer software has been abused, so high is the chance that the CR network can be abused public wide. Consequently, the benefit from the study of next-generation wireless network can be at risk because law breakers could abuse the CR. In this contribution, we analyze the issues and the problems of the CR and discuss an efficient measure against security attacks.

• KIEAE Journal
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• 제3권4호
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• pp.33-36
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• 2003

Bus station is a public space which many people use and various activities are occurred in urban life. Main activities are waiting for departure or passengers with the feelings of joys and sorrows. Also sound information including announcing message of arrival and departure are to be considered carefully. Considering these roles of bus station, creating acoustic amenity is a prerequisite to the spaces. In this study, the spaces of bus station were classified into 4 spaces such as approaching path, waiting palace, departure and arrival platform. Observation survey was conducted to extract various activities in the view point of sound in each space. And subjective response was analyzed before and after introducing prepared sounds.

• International Journal of Contents
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• 제15권4호
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• pp.50-58
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• 2019

Baotu Spring Park, a must-visit place in Jinan, China, has been rated as the country's highest-level scenic spot by the Chinese government. However, social media that highly reflects public opinions tends to express a lower evaluation of Baotu Spring Park. Thus, this paper employs service design thinking methods to identify the problems of Baotu Spring Park and provide solutions from the perspective of visitors. Based on desk research, tourist behavior tracking, contextual interviews, and a customer journey map, it was found that the service gap of Baotu Spring Park lacks a unified and effective instruction system. Also, the activities, parking, and high-quality tourist souvenirs are deficient, and there is no online information delivery platform. Finally, five suggestions are made,-respectively:,- redesign the sign system, enhance the participation of tourists, redesign the tourist souvenirs and display space, offer parking areas and shuttle buses, as well as set up a dedicated application.

• 한국IT서비스학회지
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• 제12권2호
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• pp.349-359
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• 2013

Recently, smart phones have been widely used in the world. Android phones especially provide existing mobile phone features as well as capability of running enterprise applications and web applications by using services. However, such a linkage has limitations to use Android phones as client devices, there is difficulties in providing services by utilizing characteristics of Android. To solve this problem, we need to invoke services by each other. Currently, the Android platform currently supports inter-process communication IPC. However, there is a limitation that Android services just can invoke remote calls. In this paper, we propose a framework to invoke Android services in java environments. For doing this, we propose methods to make services public and to invoke services in using remote calls and communication methods between java environments and Android.

• Genomics & Informatics
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• 제5권3호
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• pp.133-136
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• 2007

The Gene Set network viewer (GSnet) visualizes the functional enrichment of a given gene set with a protein interaction network and is implemented as a plug-in for the Cytoscape platform. The functional enrichment of a given gene set is calculated using a hypergeometric test based on the Gene Ontology annotation. The protein interaction network is estimated using public data. Set operations allow a complex protein interaction network to be decomposed into a functionally-enriched module of interest. GSnet provides a new framework for gene set analysis by integrating a priori knowledge of a biological network with functional enrichment analysis.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2003년도 춘계학술대회
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• pp.615-622
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• 2003

현존하는 대부분의 P2P(Peer-to-Peer) 어플리케이션은 검색, 전송 등과 같은 제한된 기능을 위한 구조를 가지고 있으며, 검색 결과에 대한 신뢰성의 결여, 저작권 문제, 수익성있는 사업모형으로의 정착이라는 측면에서 한계점을 지니고 있다. P2P 어플리케이션이 다양한 멀티미디어 컨텐트를 유통하는e-Business 모델로 활용될 수 있도록 하기 위해서, 본 논문은 분산 협동 필터링, 자동 가격 협상 시스템, 정산 시스템이 포함된 확장된 P2P 어플리케이션의 구조를 제시하고 구현된 프로토타입 시스템을 소개한다.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2002년도 추계종합학술대회
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• pp.110-114
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• 2002

정보통신 국가표준에 있어서는 무엇보다 공공성이 중요하며, 국가표준의 주요목적은 국내의 정보통신서비스를 비롯한 각종 정보기술 관련 산업체 및 연구원들의 사기를 앙양시키고 효율적으로 정책을 수립하고 이를 공지하여 관련 산업체와 연구원 및 특허권자들의 권익을 보호해야만 한다. 따라서 본 연구에서는 현행 정보통신 표준화를 활성화시키기 위한 국내외의 연구소 및 정책을 비교분석하고 정책을 제안하고자 한다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2003년도 추계학술대회 논문집(III)
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• pp.389-394
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• 2003

Subway has been used one of major public transportations because of overpopulation and heavy traffic problems in the metropolitan areas. So, the air pollution has been serious. In this study, continuous date of PM-10 (particles with aerodynamic diameter < $10{\mu}m$) and heavy metal concentration measurements for winter, spring and summer. These measurements have been carried out in the outdoor, concourse, platform, tunnel. The study results showed that the average seasonally concentration of PM-10 particles were $141.57{\mu}g/m^3$ in winter. $129.34{\mu}g/m^3$ in spring and $122.73{\mu}g/m^3$. The average concentration of PM-l0 particles at indoor higher than outdoor. The concentration of Fe, Cu, showed the largest peak concentrations during the respective season.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 춘계학술대회 논문집
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• pp.555-560
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• 2002

Subway has been used one of major public transportations because of overpopulation and heavy traffic problems in the metropolitan areas. In this study, continuous date of PM-10(particles with aerodynamic diameter < 10$\mu\textrm{m}$) and heavy metal concentration measurements for autumn and winter period were analysed. These measurements have been carried out at the outdoor, concourse, platform, tunnel. The study results showed that the average seasonal concentration of PM-10 particles were 181.01$\mu\textrm{g}$/㎥ in autumn and 129.03$\mu\textrm{g}$/㎥ in winter, respectively. The concentration of Fe, Cu showed the largest peak concentrations during the respective season.