• Korean Journal of Environment and Ecology
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• v.28 no.2
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• pp.247-252
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• 2014

This study was conducted to provide information which will be useful for managing the forest trails effectively. To investigate users' attitudes toward the forest trail construction and use, a questionnaire survey was employed in the Jirisan Dulegil. As the results, most of the respondents perceived that the Jirisan Dulegil have positive impact economically and socio-culturally on community growth. Contrastively, a negative perception existed in the environmental aspect. The users' satisfaction level regarding the Jirisan Dulegil appear to be positive. Users' satisfaction level regarding use services provided in community boundary was evaluated relatively lower. In this point of view, trail use service system provided in the community should be reconsidered for effective forest trail management.

• The KIPS Transactions:PartC
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• v.8C no.5
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• pp.597-606
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• 2001

In this paper, we propose the delay sensitive traffic and a high bandwidth QoS service in order to supply real-time traffic such as VoIP, multimedia service. We use IntServ over DiffServ network to supply end-to-end QoS service in the IETF. We define the proposed QoS services which are Best, Good, Default service. We analyze the performance using NS simulator with end to end QoS service in IntServ over DiffServ network. The proposed billing system uses the Accounting, Authentication, Authorization (AAA) functions of RADIUS protocol and proposes the dynamic pricing method according to network usage state using end-to-end QoS of IntServ over DiffServ network. In order to secure billing system, we design and implement audit trail system by the IEEE POSIX.1E standard.