Advanced Materials Research Vols. 356-360

Abstract: This article analyses the impact of urbanization, industrialization, modernization of agriculture on the rural area space pattern in the water-net area of Yangtze River delta; points out the importance of taking protection measures; concludes the basic types of the rural area space pattern in the water-net area; tries to diagnose the degree of health development in the rural areas by constructing spatial pattern of rural health evaluation index system in order to facilitate guiding the planning and construction of the rural area.

Abstract: The Boli basin has coalbed methane (CBM) resource of 57×10⁸m³ at a coal-bearing area of about 7200km². Although the basin has huge CBM development potential, the study on the characteristics of coal reservoirs is still deficient. In the paper, the physical properties (including coal petrography, rank, quality, porosity and permeability) of the coals were studied by: (1) measuring vitrinite reflectance, coal maceral composition and coal quality; (2) quantitatively counting microfractures; (3) porosity and permeability tests; and (4) low-temperature N₂ isotherm adsorption/desorption and mercury porosimetry analyses. Results show that: (1) coal maceral composition is dominated by vitrinite (77.0-95.1 %); (2) the maximum vitrinite reflectance of coals ranges from 0.48 to 1.76 % R_{o, max}; (3) coal is composed of high carbon content (63.43-85.14%), low hydrogen content (3.23-4.56%), extremely low moisture content (0.18-1.18%) and widely varied ash yield (7.54 to 29.23%); (4) Coal pores are dominated by micropores (40.6-69.3%), and the pores with a diameter of 0-10nm are dominant (59.6-80.9%); (5) coal permeability values vary from 0.04 to 3.92mD with an average of 1.98mD. In addition, according to the mercury porosimetry analysis, pore-fractures size distribution was summarized as four types: Types Ⅰ and Ⅲ are favorable for developing CBM and represent good pore-fracture structures.

Abstract: The heavy metal Pb、Cu、Zn 、Cr content of surface samples and pillar samples in different geography of core sanctuary in XINYANGGANG tidal land were analyzed in this paper. The present pollution condition of heavy metal and heavy metal accumulation rule were studied by Index of geo-accumulation index, latent ecological risk index method and elements accumulation index method. The research suggested that 1、The heavy metal Pb、Cu、Zn 、Cr content trend in XINYANGGANG tidal land is basically the same and this tend do not change between before and after return a turn, but the undulate scope of heavy metal become narrow and The wave crest and trough of wave have a lagged trend. 2、After researching the heavy metal content of surface tidal land, you can find that change of heavy metal Pb、Cu、Zn、Cr are lower one by one in order from high tidal land to low tidal land, but the degree of this change is different. Change of Cu、Ni、Zn content are obvious, at the same time the change of Cr、Pb content are not obvious. 3、The heavy metal Pb、Cr content in XINYANGGANG tidal land express accumulated character, and Pb content of XINYANGGANG is 300% of that of Jiangsu province soil, whose EF is 3.774. All that suggest that XINYANGGANG tidal land have Pb pollution. 4、RI of XINYANGGANG is 23.552, this suggest that though XINYANGGANG tidal land have some heavy metal pollution and accumulation, there are no ecosystem danger, and The whole XINYANGGANG core area environment quality is good.

Abstract: Land Consolidation Project (LCP), as a kind of drastic disturbance by human intentional activities, significantly changes landscape pattern. The information of landscape pattern from land-use map and planning map (scale: 1:2000) were extracted by taking the land consolidation project in hilly and mountainous area of Bashan Town, Zhong County, Chongqing, Southwestern China as an example. The whole landscape structure and each land use type class level metrics of landscape pattern were calculated. Then their effects on local landscape patterns were estimated by Fragstats for Arcview. Sixteen metrics had been chosen to describe the changes before and after LCP. The total area of the research region was 1037.45 hm2, and arable land area accounted for 80.95%, therefore heterogeneous map was mosaic. Land Leveling Project (LLP) got each patch of arable land expanded. The fragmentation was sharply reduced .The complex of patches edge was decreased. The shape of each field was ruled. And all above were beneficial for the growth of crop and plantation, especially in a large scale. LCP could reallocate fragment parcels and improve agricultural conditions.

Abstract: The article firstly proposes the concepts of urban modernization and village in city, then elaborating the characteristic of villages in Hohhot city and the transforming importance in urban modernization advancement. On the base of above, the article raises the counter measures.

Abstract: Electron behaviors in the whole cathode space of a steady argon MHCD with a variable cathode gap have been simulated on the model of Monte Carlo collisions. As the cathode gap alters, the hollow-cathode effect in MHCDs has been studied by the variety rule of electron spacial and energy distribution. The results reveal that a too wide gap between two opposed cathodes under a settled pressure will die down the hollow-cathode effect.

Abstract: This paper proposed a system used to survey and evaluate mineral environment of Beijing. In the system, RS mineral environment surveying, mineral environment evaluation and mining data management is combined as a unit system. The system is focus on an efficiency and cost-effective services in various mineral areas, and it will be applied in different aspects of mineral environment surveying, evaluation and data management. the system will reducing management costs and provide a new way of supervision and management mineral resources as a new model, it will play an important role in improving the efficiency and quality of mineral management and improving mining environment.

Abstract: Along with the structural miniaturization and three-phase-in-one-tank of GIS, the Electrical performance of disk-type insulator in GIS becomes more important for designers. In this paper, the two dimensional electric field intensity and potential distribution of disk-type insulator in GIS is calculated by finite element method (FEM). Based on calculation results, structure optimization for disk-type insulator is implemented by solving the related inverse problem by using ANSYS optimal tool based on APDL. The numerical analysis results can propose the advice and theory support for engineering practice.

Abstract: According to interpreted cautiously with 2D and 3D seismic profiles, the typical transfer zone was identified in No.Ⅱ fault zone of TaZhong area, near the TaZhong 46 well of central uplift belt in Tarim basin. Discussed the transfer zone characteristic on the basis of seismic interpretation, it’s clearly triangle transfer zone and caused by strike-slip affection. Using structural analysis method, it is indicated that the transfer zone composed by thrusting-detachment faults. According to structural evolution analysis, the transfer zone had been affecting constantly by transpression during the caledonian-late hercynian, Analyzing geologic setting and regional geology characteristic, TaZhong No.Ⅱ fault zone are sinistral transpression strike-slip fault. Analysis the control action of transfer zone’s for trap, reservoir, hydrocarbon migration and sedimentary, the Transfer zone have the advantage target for oil and gas exploration.

Abstract: Sustainable development which is proposed after humans experience numerous punishment and disaster from the environment is provided with the strategic thinking of ecological, economic and political significance. Western resource development and sustainable development has a very important strategic role in development of Chinese modernization. “Do not think that the planet is parents passed to you, it is the future generations to lend you. When we talk about growth, we should take into account the development of future generations.” 2010 Davos Forum the seminar of sustainable growth, Brilliant speaking of K.R.Sridhar who is co-founder of Bloom energy Co reflects the core values of sustainable development. The success or failure of Western resource exploitation and sustainable development strategy determines Chinese modernization process.