A prototypical network expert geographic information system (GIS) is developed to facilitate municipal solid waste landfill siting. A forward chaining knowledge base consisting of related siting rules extracted from various lit~rature is used to establish an expert system. Siting analysis is performed by a GIS and evaluated by rules triggered from the expert system. The expert system and GIS are integrated into an expert GIS to combine the advantages of both systems. Also, a multimedia network interface is designed for loca~or rem?te access to the system from anywhere on the Internet. With the interface, a general user does not reqUlr~p~evlOus knowledge of the ex~~sy~tem and GIS to use the system. This networking capability not only slgmficantly reduces the cost of dlstnbuting tools to each user, but also avoids the difficulty that each user may encounter in installing and managing tools on the computer. Finally, a case study is provided to demonstrate the effectiveness of the developed system in facilitating landfill-siting analysis. The system can be directly accessed via Internet from the home page http://evOO4.ev.nctu.edu.twIENGLISHlwsite/index.html.
Climate change is increasing owing to the frequency and intensity of extreme weather events caused by greenhouse gas (GHG) emissions mainly due to anthropogenic activities. In recent years, many countries have set goals to decrease GHG emissions and achieve carbon neutrality while maintaining their economic situation. The purpose of this study is to determine the optimal policy for fossil fuels and renewable energy allocation, which could decrease GHG emissions and maintain the economic situation in Taiwan until 2030. The results show that renewable energy rapidly increased to 5.8 billion kWh, and natural gas increased to 54 million m3 when energy consumption was maintained for the values in 2020. Greenhouse gas emissions in 2030 are expected to decrease to 20% of the value in 2005. Finally, the Taiwanese government should consider the allocation of fossil fuels and renewable energy with linear growth in energy consumption and achieve the goals of carbon emission reduction.
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