Research

Research Title :	Open Source WEBGIS
Abstract :	Open Source WEBGIS and its scope in developing Countries like Nepal Geographic Information System (GIS) has come to be an indispensable tool for analyzing and managing spatial data. Basically GIS is used to provide user with spatial information. In the case of the traditional GIS these type of information was within an organization or group of organization. Thus the information provided by GIS was restricted within a boundary. Hence this disadvantage of traditional GIS lead to a solution of integrating GIS to Internet, which was called WEBGIS. The implementation of the GIS to the internet can make the GIS information available to the whole world. Any one staying at one end of the globe can get the GIS information of the other end with a single click of the mouse. One of the major advantages of WEBGIS is that it would allow sharing of information and technical expertise among a wide range of users. Most GIS vendors and some commercial spatial data providers have realized that the Internet will be the next-generation GIS platform, providing a powerful medium for geographic information distribution, as well as a new market to exploit. Hence many Commercial vendors have developed their own version of WEBGIS application for example ESRI�s ARCIms e.t.c. Though this software provided better information, they were expensive and required vast knowledge to implement them. And to use this type of application for developing countries like ours is of no use. Hence there was a necessity of an open source WebGIS application that should be both powerful for visualizing GIS information, can compete with other GIS based applications and at the same time easily accessible to all.
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Research Title :	Triple A Wireless/Wired Hotspot
Abstract :	As is the case with any valuable resource, there must be limitations on who can access and use the wireless medium. In some situations, such as when offering wireless access to attract customers, these limitations will be minimal. In others, we want the greatest possible protection available. Controlling access to computer resources is best illustrated in the Triple A Wireless/Wired Hotspot framework: Authentication, Authorization, and Accounting. Authentication is the ability to identify a system or network user through the validation of a set of assigned credentials. If you have ever been prompted for a username and password when turning on your computer, you have experienced authentication first hand. Authorization defines the ability of a specific user to perform certain tasks, such as deleting or creating files, after the authentication process has taken place. Finally, accounting allows us to measure and record the consumption of network or system resources. The AAA framework lends itself well (as it does to any computer resource) to wireless network access control.
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Research Title :	A survey on monitoring Imja Glacier, Mt. Everest region through field server including connectivity:
Abstract :	In September, a survey study to suggest robust communication connectivity solutions to monitor Imja Glacier Lake to establish flood warning system at community level along the river originated from Imja Lake was carried out by expert team members of following organization: ICIMOD Nepal, KEIO University Japan, University of Tokyo, APAN Japan, NARC Japan, KDDI Japan, AIT-Bangkok in coordination with Nepal Research and Education Network (NREN). Based on the observation the team carried out, the Internet service provided by local ISP can be the fastest way to go for connectivity for the short term. The safest way to monitor the lake from Kathmandu can be through point-to-point satellite connection by putting one satellite at Chhukung Relay and the other in Kathmandu. The team recommends some of the ideas in order to setup the connectivity between Kathmandu to Imja Lake using OFDM or Wi-Max wireless radios. A detail study to be carried out for direct wireless connection from Imja to Kathmandu to find out the feasibility of such a network.
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