Huang Zengqi's novel creation is characterized by its early-phase maturity,its mid-phase practical discontinuation of creation and its later-phase flourish. By analyzing the relationship between his experiences at various phases of his life and the process of his novel creation as well as the relationship between his early phase and later phase in novel creation,one can discern that his diverse states of novel creation in various phases stem from his marginalized creation and that the marginalization of his life prevents his novel creation from entering the mainstream literary circles while he seemed content to be an outsider just because of his non-utilitarian attitude towards life.
Unit quaternion is used to represent the of rigid body,orientation-singularity expression of the Stewart platform at a given position is deduced,and the singularities caused by Euler angles are avoided.The concept and algorithm for nonsingular orientation-workspace of the platform at a certain position are proposed.The minimum inscribed sphere of the boundary surface of nonsingular orientation-workspace is represented as the practical orientation-workspace,and the sphere radius is used as the performance index of the platform’s practical orientation-capability at the given position.Specific structural parameters of the platform are given,and the nonsingular orientation-workspace of the platform at a certain position is described.Furthermore,the practical orientation-capability changing with the variation of positions in the position-workspace of initial orientation is described.
On the basis of the demand of foreign and domestic tourists , the on-the-spot interviews and the questionnaires, the paper undertakes a comparison analysis on the behavior traits of foreign and domestic tourists, the consumption traits, demand traits and tendency traits in order to offer a direction for world-wide market development in village tour.
Sediments from Xinyun Lake in central Yunnan, southwest China, provide a record of environmental history since the Holocene. With the application of multi-proxy indicators (total organic carbon (TOC), total nitrogen (TN), δ13C and δ15N isotopes, C/N ratio, grain size, magnetic susceptibility (MS) and CaCO3 content), as well as accelerator mass spectrometry (AMS) 14C datings, four major climatic stages during the Holocene have been identified in Xingyun′s catchment. A marked increase in lacustrine palaeoproductivity occurred from 11.06 to 9.98 cal. ka BP, which likely resulted from an enhanced Asian southwest monsoon and warm-humid climate. Between 9.98 and 5.93 cal. ka BP, a gradually increased lake level might have reached the optimum water depth, causing a marked decline in coverage by aquatic plants and lake productivity of the lake. This was caused by strong Asian southwest monsoon, and coincided with the global Holocene Optimum. During the period of 5.60–1.35 cal. ka BP, it resulted in a warm and dry climate at this stage, which is comparable to the aridification of India during the mid- and late Holocene. The intensifying human activity and land-use in the lake catchment since the early Tang Dynasty (∼1.35 cal. ka BP) were associated with the ancient Dian culture within Xingyun's catchment. The extensive deforestation and development of agriculture in the lake catchment caused heavy soil loss. Our study clearly shows that long-term human activities and land-use change have strongly impacted the evolution of the lake environment and therefore modulated the sediment records of the regional climate in central Yunnan for more than one thousand years.
Globalization has had a significant impact on society, economy and culture. We had analyzed the influence of the comprehensive development level of Chinese cities on the distribution characteristics of multinational brands by using artificial neural network to analyze the distributed data of famous luxury goods, popular fast fashion dresses, make - up and watches in Chinese cities. The results tell us that the distribution of the brand in the Chinese cities shows the obvious law of infiltration from outside to inside, and the population size, economic level and external communication capacity of the city have important influence on it.
Supported by GIS,four topographic maps from 1984 to 2004 were analyzed to study the erosion and siltation in the reach of the new harbor of Waigaoqiao.Interpolating in Surfer 8.0,underwater digital elevation model of this region was created and the author calculated the erosion and siltation of the new harbor reach.The results showed: There was a heavy erosion-accretion variation in this reach in recent 20 a.A total of 0.51×10~8 m~3 of sediment was deposited in the region,and the river bed accreted averagely 0.61 m from 1984 to 2004.The main passage of the south channel became wider and shallower.From 1984 to 1997,a net siltation rate was 3.2 cm/a.From 1997 to 2000,the siltation rate increased to 14.6 cm/a almost 4.5 times of 1984—1997,which was mostly attributed to the Yangtze floods in 1998 and 1999.During 1984—2000,most of the siltation occurred within a zone of 1.0 to 1.5 km in width adjacent to the southern part of the new harbor reach.From 2000 to 2004,a net erosion rate of 6 cm/a was found in the whole reach,however in the southern part adjacent to the harbor siltation was maintained.This was probably due to the influence of the harbor construction during the period.
In recent years,environmental problems associated with tourism,such as pollution,heavy traffic,the waste problem,overconstruction,excessive use of water and degradation of other natural resources,have become clearly manifest.The article talks about the negative influence,and then the writer giver some advice about how to deal with these problems,for example,having a right,sustainable developmental idea on tourism,strengthening propaganda of environmental protection and putting up the information system of tourism etc.At last,the writer provides a managerial model about tourism and protection of environment in order to sustain the long-term viability of the tourism industry.
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