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Based on the investigation of the sustainable development system and conceptual framework for tourism, this paper presents that the sustainable development of tourism in the Daocheng Yading Scenic Spot is confronted with a great many challenges such as tourist resource security, tourist ecological environment security, tourist human landscape security and tourist management security, and builds up...
From the perspective of systems engineering, this paper analyzes the composition, structure, functions and characteristics of the tourism system and presents that the tourism system is a complex one which consists of the tourism system, tourist service facilities system, ecological system and tourism administrator system. It also puts forward that the development of tourism is a systematic project...
China is a mountainous country. According to the statistics, areas with an elevation of more than 500 meters account for 74.8% of the total land area in China. They are mainly mountains, hills and plateaus, namely mountains in a broad sense, which account for 69% nationwide. Mountain tourism resource is an important part of natural tourism resources in China. Our country now boasts 208 key national...
The nature reserve is an important and special carrier of the ecotourism in China. Tourism on nature reserve not only need to pursue an economic performance, but also need to obey the initial target of protection, pursuing coordination among the functions of protection, research and educating etc. There are a series of problems in the nature reserve tour ism industry currently, such as the problems...
In three-dimensional accurate radiotherapy treatment planning system, one of the key steps in the whole planning is to reconstruct and visualize the surface model of tumor target and organs at risk (OAR) from a serial of cross-sectioned contour points rapidly and accurately. This study designed a fast 3D-reconstruction and visualization pipeline comprising the following four main steps: (1) pre-processing...
Temporal constraint networks are embedded in many planning and scheduling problems. In dynamic problems, a fundamental challenge is to decide whether such a network can be executed as uncertainty is revealed over time. Very little work in this domain has been done in the probabilistic context. In this paper, we propose a temporal constraint network (TCN) model where durations of uncertain activities...
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