Papers by Keyword: Driving Force

Abstract: Developing geological heritage resource from the perspective of tourism is a new pattern of resource using. The development of Xinjiang geological heritage resource is restricted and effected by the internal and external driving forces and support. The internal driving force includes the resource endowment and the need for regional economic and sustainable development; the external driving force includes the competition of tourism, the market and the government regulation; support includes the construction of infrastructure, the improvement of tourism facilities and ecological support. All these forces restrict and effect each other and become a harmonious whole.

Abstract: Since 1990s, urban land in China has increased rapidly, and the annual construction land quota of the city has been broken through constantly, so city size is always surmounting the scale limit of master plan. In order to understand and guide the healthy development of city scientifically, the paper investigates large amount of Chinese and western urban expansion phenomenon in the past centuries, and sums up 5 expansion patterns according to the driving forces. They are urban expansions driven by industrialization, by social psychology, by high concentration of urbanization, by impeded urbanization and national policy and by globalization, which are the main types of the urban expansion in modern society.

Abstract: Using GIS and such models as dynamic degree, analyzed the land-use change in Qingdao according to the statistics of land-use data from 2000 to 2010 years and based on these, the author selects eight natural and socio-economic indexes, and takes districts as the study unit to calculate the driving force indexes with the fuzzy comprehensive evaluation method, and makes the spatial-division thematic maps of the driving forces which cause the land-use change in this region base on GIS. The results show that in Qingdao the land-use types which have the largest change rate is residential area and mining sites, followed by the unused land, water and cultivated land, and the garden plot is the smallest. There is a decreasing of cultivated land and unused land while other types have increased; because of a large base number, cultivated land reduces most among all land-use types. There exists a big spatial difference among these driving forces for land-use change. According the driving force indexes we divided them into four regions.

Abstract: In order to analysis the landscape pattern change in Shenyang, we counted the most representative landscape metrics according to the remote sensing images from 2005 to 2010. And then we used the transition matrix of land use to analyze the situation of land use macroscopically by change trend. We analyzed the driving forces of landscape change of study area from 2005 to 2010 using the multivariate statistics method of Principal component analysis (PCA). The results showed that the area of agriculture and green space decreased, and the rural settlement and urban land increased correspondingly. Based on the results of PCA analysis, the landscape changes were mainly driven by the forces of population increasing and economic development.

Abstract: A short review of the most important reliable, as well as doubtful, in authors opinion points in a wide field of grain boundary diffusion, stresses and segregation.

Abstract: Grey Relational Analysis is a method of analysis and calculates the relational degree of evaluated object, which can characterize the relational degree between object with viral object. In this paper it was used to analyze the driving forces of water consumed structure change, and YiChang city was selected as an example. Adopted grey relational degree analysis, the main factors were found out. The results showed that industry water utilization rate, irrigation area, urbanization level are the main driving forces, and corresponding water-saving measures were put forward. This study can provide reference for the construction of water-saving society and sustainable utilization of water resource.

Abstract: With the progress of human, the society is progressing. All products involved in society also are constantly evolving. Actually, technological system has its own technological evolution like the biological evolution. Technology evolution is not accidental, but driven by some factors. And every kind of driving force is happened according to certain principles. This paper proposed nine driving force of products technological evolution as well as the evolution theory. At last, a case study of the mobile phone verified the proposed theory.

Abstract: A novel redundantly actuated parallel machine tool was introduced. The inverse kinematic of 5-UPS/PRPU PMT with redundant actuation was analysed and the driven force of redundant actuation limb was planned. The force/position hybrid control strategy and dynamic differential calculation control strategy were proposed. Then the experiment of evaluating dynamics in the position control mode and in the force/position hybrid control was carried out respectively. The experiment shows that, the force/position hybrid control can improve driven torque of each limb better, balance the load of each limb and is of great help for enhance the dynamic performance of entire PMT.

Abstract: Ecological environment is the basis for human interdependence and development, so regional economic development must take into account the security situation of ecological environment and biocapacity. Based on the Ecological Footprint methodology, using remote sensing and GIS spatial analysis techniques, the biocapacity of Minqin oasis in Gansu in 1990, 2000 and 2009 was quantitatively calculated, and its spatio-temporal pattern analysis was also analyzed. The results showed：over the past two decades, there have been increasingly noticeable alterations to Minqin oasis; as a result, land reclamation activities have led to an increase in the areas of cropland, meaning that its biocapacity is rising, while the biocapacity of forest and pasture is decreasing. The biocapacity in space shows that the high-value area aggregation is augmented, there is an increased scope of area, and the focus of biocapacity has shifted. However, after 2000, with the water shortage, abandonment issues being highlighted and the aggravation of desertification, biocapacity has decreased, and additionally, the relationship between land and man has become strained. The changes of biocapacity are all closely linked with population growth, socio-economic development, agriculture structure, and water scarcity.

Abstract: In this paper, a mechanical model for bonded PZT actuator is presented. By analysis (analyzing) and researching principles of the bonded PZT drive combined with the second class of piezoelectric force - electric coupled constitutive equations based on continuum dynamics established along the length of PZT-driven model to the mechanical vibration. In (during) the modeling process, the impact of the bonding layer was mainly considered between the PZT and the structure.