Advanced Materials Research Vols. 403-408

Abstract: Joints developed in rock mass have been considered as the living evidence of surface rocks being reshaped and reformed by multi-stages of tectonic evolution and stress fields. And they have been frequently used as indicators of the principle stress orientations in the reconstruction of stress fields and evolution(transition) processes. The paleo-reservoir of hydrocarbon in the Majiang area, Guizhou Province, is one of the largest paleo-reservoirs developed in residual units of marine strata in southern China. The area was shaped by multiple stages of tectonic movements and therefore experienced complicated tectonic evolution processes. As a result, numerous joints were developed in the strata of the area and offer a great opportunity for a profound study of the relationship between jointing characteristics and tectonic stress fields. Field measurements of joint sets were therefore performed to provide data for a statistical analysis on characteristics, occurrence, and geometries of the joints in the area. Based on a combination of the regional geological setting with an observation of joint intersection patterns and cutting relations between joints and faults, we suggest that there are five groups (stages) of joints developed in the area. They are, according to the age sequence of the strata (from old to young), the early conjugate shear joints of X intersections with NEE-SE orientation, the early conjugate shear joints of X intersections with SEE-NEE orientation, the overthrusting longitudinal joints of NE orientation, the open joints of SSE orientation and the shear joints of nearly EW orientation. They are the products of the Duyun Movement, early Guangxi Movement, Indo-China Movement, and Yanshang Movement respectively. The tectonic stress field of each stage is reconstructed through inversion based on data of joint occurrence. The calculation shows that the principle stresses of the stress fields in the Majiang area had shifted clockwisely from SEE to SE, SSE, and finally EW.

Abstract: A novel system based on embedded platform for environmental noise monitoring is presented in this paper. The system is designed by ARM and DSP to implement data collection and processing respectively, as a substitute for conventional MCU and DSP structure. The DSP is used as the core processor to implement a high precision IIR filter for 1/3 octave band spectral analysis in real time. The noise data detected beyond the reference value can be processed and stored automatically, and the noise pollution sources can be identified in time by the images captured by an USB camera on the terminal. Then the data and images acquired by the system will be transmitted to the sever computer through GPRS , and the users can obtain the real time noise data and pollution sources images when they explore the website of noise monitoring center. All the properties of 1/3 octave filters can meet the International Electrotechnical Commission Standard IEC61260-2001 class I. The system has the capability of high accuracy and stable performance at all time compared with the conventional system, indicating that it has great significance to the control of a city’s noise pollution condition.

Abstract: Analyzing the discovered carbonate reservoirs in the Tazhong area, Tarim Basin indicates that the development of a reservoir is controlled by subarial weathering and freshwater leaching processes, sedimentation, early diagenesis, and alteration by deep fluids. According to the origin and lateral distribution of reservoirs, the hydrocarbon accumulation zones in the Tazhong area are classified into four types: buried hill and palaeoweathering crust, organic buildup reef-bank, dolomite interior, and deep fluid alteration. Different types of carbonate hydrocarbon accumulation zones are distributed mainly in specific areas of the Tazhong uplift. Because of the different mechanisms of forming reservoirs in different carbonate hydrocarbon accumulation zones, the reservoir space, reservoir capability, type of reservoir and distribution of reservoirs are often different.

Abstract: With the building of the South-to-North Water Diversion Project, surface water resources in arid regions has been recharged effectively. Generally speaking, the surface water-supply resources in arid region include two parts, local water and secondary water, which makes its water quality evaluation has its own particularity and different from regular evaluation. So the surface water quality evaluation in arid region is unique.For it involves a wide range of complex factors in practice, the fuzzy set theory and fuzzy matter-element theory were applied to the study. The mathematical model was established based on the quantity demand of both local water and secondary water, and meanwhile taking the subjective and objective conditions into account carefully, so the weights of the two parts were obtained respectively. The results proved to be a good solution to solve the problem of water quality evaluation level in arid areas,and the research achievements also openup new ideas for comprehensive evaluation method of surface water quality in cities of arid region.

Abstract: The approach on the Construction of Open University in China start from the mid-nineties of the last century，but so far there is only Shanghai Open University was established. What are the difficulties and reasons of construction for the Open University This article try to answer these questions above-mentioned from the technical viewpoint, and from the reality, to make a farther think on strategy of the Construction of Open University, in the hope to improve the Construction of the Open University.

Abstract: China's existing building is a modern Western precious heritage of all mankind, can not be ignored with great history, culture and Artistic value, its tourism development is important to realize the value of their own way. Historic buildings summarized and successful cases of tourism development, protection of traditional culture from the perspective of the existing historic buildings in China demonstrated the economic development of the significance of tourism, the development of principles and proposed measures to provide for the relevant departments and relevant basis for decision making and action reference.

Abstract: Virtual learning community has become the main online learning place for learners, and cloud computing provides new tools for the development of virtual learning community. Based on the Google APP Engine (GAE) cloud computing platform provided by Google Company, the article explained the construction of the virtual learning community in cloud computing environment.

Abstract: The key of intelligent learning support system lied in providing personalized service according to different students. Based on cognitive student model, the article designed an intelligent learning support system based on machine learning, which automatically diagnosed students’ cognitive abilities in order to make students in different levels get different depth’s answers, and appropriate level skills training. This would stimulate students' interest in learning and improve students' cognitive ability.

Abstract: As a rapid developing area, Changping in Beijing, China, the change of land use and land cover(LUCC) had occurred at large scale in the recent 20 years. Remote sensing had provided the approach to monitoring LUCC and the environment response. The paper focus on monitoring LUCC and quantitative analysis of the thermal environment response. Based on the multi-temporal LandsatETM remote sensing images in 1999 and 2006, the earth surface brightness tempreture had been obtained by retrieving from LandsatTM6. The regional land use change and its spatio-temporal thermal environment evolution were analyzed with ENVI4.7 and Arc GIS 9.2. The research results showed that the land use changed evidently from 1999 to 2006. The regional urban expanding and the spatio-temporal thermal environment evolution was consistent from 1999 to 2006. By comparing the contrbution from the different land use types to the urban thermal environment effect, it was discovered that forest land was the largest contributor for the low area. The proportion of forest land decreased in the low temperature areas, and the proportion of urban land increased in high temperature area from 1999 to 2006. The urban heat island effect was obvious. The nakes arable land resulted the high temperature areas. The forest land and the agricultural land with the crop was helpful for the lower temperature areas.

Abstract: Because of the rapid economy development and the enormous society evolution, large scale changes of land use and land cover had occurred in areas of Beijing and Hungary in the past two decades. This paper focused on monitoring on LUCC(land use and land cover change) in Changping，Beijing, China and Lake Velence watershed area in Szekesfehervar, Hungary based on Multi-Temporal, Multi-Spatial and multi-source remotely sensed images and Geographic Information System( GIS).