• Journal of Korean Academy of Nursing
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• v.39 no.1
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• pp.124-135
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• 2009

Purpose: The purpose of this study was to evaluate the service satisfaction for families who have someone with mental illness, and are using community mental health centers in Gyeonggi Province. Methods: The participants in this study were 796 family members. Data were collected using Family satisfaction survey questionnaire developed by the author (23 items on family service and 15 items on client service). Results: The total satisfaction level for the service with family and client resulted in above average scores. Of the 23 service items, data showed the highest level of satisfaction was with professional skills and attitude, and day rehabilitation programs, and the lowest for professional activities for advocacy and social welfare benefits, emergency & crisis intervention, medical expense subsidies. Of the 15 service items, job and housing related service had the lowest level of satisfaction. Conclusion: It is recommended that psychiatric emergency & crisis intervention programs and system development be accelerated. Also, there is a need to develop medical expense subsidy programs for older family caregivers, job and housing focused rehabilitation programs and community facilities for the client, as well as more active and powerful professional advocate activities for persons who have mental disabilities and their families.

• Journal of the Korea Society of Computer and Information
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• v.14 no.1
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• pp.153-161
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• 2009

In this paper, we designed and implemented realtime DID(digital information display) system based on web server that displayed multimedia contents. The contents are weather, news information on the internet web sites and public relations or advertisements data on local systems. The DID system has client/server architecture that the server send to client that schedule informations and multimedia contents received form web server and the client displayed the contents though scheduled information. Therefore the systems overcome network fault for the mean time. Also, the system has realtime services of web page filtering function that extract the partial information of specific web pages.

• The KIPS Transactions:PartD
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• v.12D no.6 s.102
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• pp.875-880
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• 2005

Recently web services ale being used to provide environments of distributed computing. Web services provide reusable software component. So, one web service can be used by many users, and one user can use different web services. For reliable use of web services, in these cases, it is important to be fault-tolerance. Existing fault-tolerant methods in web services need a kind of client modification and cannot consider extensible factors like quality. This study suggests the system architecture and description language for the system which can improve some of these problems.

• Proceedings of the IEEK Conference
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• 2005.11a
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• pp.975-978
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• 2005

Vertical handoff is the process of maintaining a mobile user's active connections in the heterogeneous network. In vertical handoff, many frames can be lost since the connection between a server and a client is broken off during handoff latency. To solve this problem, in this paper, we propose an effective video streaming method for video on demand (VOD) services that provides seamless playout at the client in vertical handoff. Performance evaluations are presented to demonstrate the effectiveness of the proposed method.

• Journal of Industrial Technology
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• v.28 no.A
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• pp.97-104
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• 2008

Recently, interests on positioning system for location-based services have been significantly increased. Many indoor environment systems using fingerprint scheme have been designed to take more accuracy of positioning, but they are inefficient in adapting to change of environments. In this paper, we focus on a client-based positioning system over WLAN for decreasing installation cost and adapting to change of environments. In the proposed system, APs with stable RSSI are selected as base APs independently for each reference point. Experimental results show that proposed system expands service area approximately 20% much than traditional systems using K-NN algorithm and needs only 20% modification process to fingerprint data compare with traditional systems whenever environment conditions are changed.

• The Journal of Information Technology and Database
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• v.7 no.2
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• pp.33-45
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• 2000

Uniview system is a client-server system that runs on heterogeneous distributed systems and supports the debugging of various kinds of programs. Its client system provides a unified debugging concept and interface on various debuggers of heterogeneous hosts. Its server system provides debugging services and features openness and scalability by interoperating with one or more debugger processes existing on the same host. Based on FSF(Free Software Foundation)'s gdb and Sun Microsystems's dbx. Uniview system supports C/C++ programming language in various UNIX environments as well as Windows environments. The proposed system was designed and implemented to support the JAVA language, which is prevalently used in recent heterogeneous distributed systems and was partly extended to make a clear analysis of JAVA class file structure. Sun Microsystems's Jdb supplied as a JAVA debugger has very limited functions compared to other programming language debugger. In this paper, Uniview as a JAVA debugging system was implemented to provide debugging technologies which are necessary to debug Java applications but missing in current JAVA language as well as to provide its users with various information.

• Journal of Korea Spatial Information System Society
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• v.11 no.2
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• pp.54-62
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• 2009

This paper proposes a framework for personal location based services with personal life content, for example diaries, schedules and to-do lists. A lot of Internet users are recording their personal experiences and knowledge as text and other digital media on the network. Our proposed tool provides users with an environment to store personal records with related place attributes, and to retrieve these personal records at the right place. There are two applications on this tool, a place-enhanced blog and a LBS client on a mobile phone. The place enhanced blog provides users with blog interfaces for inputting place information. The place rem inder is a browser for spatial data on the place enhanced blog. Users can generate place information by writing personal records on their blog. Furthermore, using the LBS client, other users can retrieve personal records at the appropriate spots.

• Journal of the Korea Computer Industry Society
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• v.2 no.12
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• pp.1541-1548
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• 2001

In this paper, We propose a new Kerberos certification mechanism that improve certification service based on PKINIT that announce in IETF CAT Working Group. Certification between area connected by chain through PKINIT that use X.509 and DS/DNS mutually for service. In order to provide regional services used private key and public key, X.509 of PKINIT is employed on session part and Kerberos's private key on actual authentication part. New mechanism be reduced communication overload doing to simplify certification formality between Client and remote KDC by KDC's certificate use to get ticket in remote sacred ground and remote KDC's reaffirmation process omitted.

• Proceedings of the Korean Information Science Society Conference
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• 2001.04a
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• pp.340-342
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• 2001

본 논문에서는 홈네트워크에서 반드시 필요하게될 무선데이타통신 전송기술로서 블루투스 인터페이스의 상위 프로토콜 스택중 소프트웨어와 관련된 HCI(Host Controller Interface), L2CAP(Logical Link Control and Adaptation Protocol), SDP(Service Discovery Protocol)레이어에 관해 정의를 하고, 홈네트워크 미들웨어로서 자바를 기반으로한 Jini 시스템의 서비스제공자(services) 서비스관리자(Lookup service), 서비스이용자(client)간의 통신 구조에 대해 살펴본다. 블루투스 인터페이스를 이용한 Jini 시스템에서 client에 PDA, service로는 프린터로 구성하여 이에 기반한 여러 프로토콜의 사용을 설명하고 현재 SA-1110 보드상의 Jini 시스템을 구현중인 모델의 구성과 원격제어를 위한 향후 확장계획에 대해 간단하게 소개한다.

• International Journal of Contents
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• v.9 no.1
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• pp.18-25
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• 2013

Recently, augmented reality has been proved immensely useful on a day to day basis when tied with location-based technology. In this paper, we present a new method for displaying augmented reality contents on mobile devices. We add 3D models on the view of the camera and use location-based services, motion sensors to calculate the transformation of models. Instead of remaining at a fixed position on camera view while moving around a 3D model, the model rotates on display in the opposite direction that the user is walking. We also design client as a ubiquitous client to reduce constraints on disk space and memory capacity on mobile devices. Implementation results show effective use in creating GPS-based 3D view augmented reality contents for Smart Mobile Devices.