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Land use structural optimization of Lilin based on GMOP-ESV

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中国有色金属学会会刊：英文版 2011年第S3期21卷 738-742页

作者： ZHANG He-bing, ZHANG Xiao-hu school of Surveying & Land Information engineering,{2., jiaozuo 454000, china school of Surveying & Land Information engineering Henan Polytechnic University Jiaozuo 454000 China

Land use structural optimization is an effective approach to realize land sustainable utilization and allocate limited land resource rationally. Grey multiple objectives programming (GMOP) model based on china terrestrial ecosystem service value was constructed and applied to Lilin town. The result shows that GMOP model has more practical applicability and takes ecologic, social and comprehensive benefit into consideration. There are three programs after optimization. Program Ⅰ is comprehensive improvement and constructing ecological economy type, program Ⅱ is gross cultivated land dynamic balance type and program Ⅲ is compromise type. There are still problems in programs Ⅱ and Ⅲ, such as distribution in disorder, land left unused or abandoned. Based on the benefits above, Program Ⅰ>Program Ⅲ> Program Ⅱ. Program Ⅰ is the optimal case. Its comprehensive benefit is 8.432.8×107 RMB yuan/a.

关键词： land use structure optimization grey multiple objective programming ecosystem service value Lilin town

Suitability evaluation for land reclamation in mining area:A case study of Gaoqiao bauxite mine

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中国有色金属学会会刊：英文版 2011年第S3期21卷 506-515页

作者： WANG Shi-dong1, 2. LIU Chang-hua2. ZHANG He-bing2.1. College of Resources science and Technology, Beijing Normal university, Beijing 100875,{2. 2. school of Surveying and Land Information engineering, henan polytechnic university, jiaozuo 454000,{2. College of Resources science and Technology Beijing Normal University Beijing 100875 China school of Surveying and Land Information engineering Henan Polytechnic University Jiaozuo 454000 China

Suitability evaluation plays an important role in land reclamation because the choice of evaluation methods affects the accuracy and objectivity of the suitability evaluation results. Furthermore, it influences the decision-making related to land reclamation. An improved method, which is called limit comprehensive conditions method, was developed after different suitability evaluation methods were studied. Based on this method, the reclaimed land of the Gaoqiao bauxite mining area was evaluated. The Gaoqiao mining area was divided into seven evaluation units that were evaluated respectively by selecting evaluation factors and establishing grade standards. The results show that the proposed method is more applicable and easier to handle. Moreover, its evaluation results are more scientific compared with the traditional evaluation methods. The improved method can be beneficial to the rapid monitoring and the effective management of reclaimed land in the opencast mine area.

关键词： mining area land reclamation suitability evaluation Gaoqiao bauxite mine

Cultivated land quantity niche regulation and its environmental effect

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中国有色金属学会会刊：英文版 2011年第S3期21卷 699-705页

作者： NIU Hai-peng, FANG Guo-you, GAO Han-qi, SONG Jian-rui school of Surveying and Land Information engineering,{2., jiaozuo 454000, china school of Surveying and Land Information engineering Henan Polytechnic University Jiaozuo 454000 China

The change in the quantity of cultivated land influences the structure, function and evolvement of ecosystem. The rational change in the quantity of cultivated land will be propitious to ecological security and sustainable development, and irrational change will deteriorate ecological environment. The concept of cultivated land quantity niche regulation was firstly put forward based on niche theory and the action-feedback mechanism between cultivated land quantity niche and cultivated land benefit niche. Then, the regulation measures of cultivated land quantity niche were brought forward in rural-urban area, agro-forest area and consolidation-reclamation-exploitation area. Finally, the ecological environmental effect after regulation was analyzed. The results show that different measures should be taken to regulate cultivated land quantity niche in different areas. The economic and social benefit niche of cultivated land should be promoted to regulate cultivated land quantity niche in rural-urban area and consolidation-reclamation-exploitation area. The social benefit niche of cultivated land should be reduced in agro-forest area. The regulation goal of cultivated land quantity niche will be attained by different measures.

关键词： niche theory cultivated land quantity niche regulation land reclamation environmental effect

Construction and application of formal ontology for mine

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中国有色金属学会会刊：英文版 2011年第S3期21卷 577-582页

作者： CHENG Gang 1, 2. ZHANG Yin-ling1, 2. WANG Fei 1 ,2. ZHANG Zhen-hui 3, GUO Yu-xiang1, 2.1. Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping, henan polytechnic university, jiaozuo 454003,{2. 2. school of Surveying and land Information engineering, henan polytechnic university, jiaozuo 454003,{2. 3. Qingdao Branch of Naval Aeronautical engineering Institute, Qingdao 2.6041,{2. Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping Henan Polytechnic University Jiaozuo 454003 China school of Surveying and land Information engineering Henan Polytechnic University Jiaozuo 454003 China Qingdao Branch of Naval Aeronautical engineering Institute Qingdao 266041 China

Digital mine is the only way for the development of mining industry in china. Due to lack of appropriate standards and norms, and different awareness in the field of digital mine among academia and industry insiders, the meaning for digital mine is still unclear. Starting from the nature of mining and removing of views of specialized fields, this paper constructs formal ontology for digital mine and proposes the four levels for it. The ontology clarifies the concept world for digital mine, defines the meaning of concepts and relations clearly, provides a reference for the standard construction for digital mine and provides a unified semantic framework for the integration of heterogeneous mine data. Meanwhile, it can provide formal reasoning knowledge for expert system of digital mine and improve the intelligence and automation while the machine automatically interpreting and processing mine spatial data.

关键词： Digital mine formalization ontology concept world semantic share

Structure and Mechanical Properties of Ni-based Porous Superalloy

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Journal of Wuhan university of Technology(Materials science) 2010年第1期25卷 73-77页

作者：米国发 school of Materials science and {2. Henan Polytechnic University

The porous superalloy materials with hollow spherical and oriented linear pores were fabricated by means of powder metallurgy using Ni-based superalloy powders. Structure observation revealed that the pores of the porous material exhibited uniform distribution and the pores were of the same size in principle. The sintering necks created between adjacent particles on metal skeleton after sintering. The porosity of the porous material increased with increasing the addition of pore forming agent, and the hollow spherical porous material with a porosity of 81.62. were obtained when the addition of pore forming agent was 40%. The compression test indicated that this kind of materials possesses excellent energy absorption capability, and the compression resistance decreased with the increasing of porosity and pore size.

关键词： porous superalloy powder metallurgy hollow spherical pores oriented linear pores

Glass forming ability, microstructure and magnetic property of NdAlNiCuFe alloys

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International Journal of Minerals,Metallurgy and Materials 2007年第S1期15卷 13-18页

作者： Zhi Zhang, Zhaolong Wang, Dongman Yu, and Chunling Chen school of Materials science and {2., henan polytechnic university, jiaozuo 454000, china

The glass forming ability (GFA), microstructure and magnetic property in (Nd60Al10Ni10)Cu2.-xFex (0≤ x≤ 2.) alloys were investigated by using X-ray diffraction (XRD), differential scanning calorimetry (DSC), high resolution transmission electron mi- croscopy (HRTEM) and magnetic property measurement. It is shown that the GFA of the alloys decreases with Fe content. The sam- ples for bulk cylinders with x≤10 show a distinct endothermic peak in the DSC traces due to a glass transition in the range of 42.-438 K. With further increasing Fe, the glass transition is masked by the crystallization. The microstructure of the Nd-based alloy can change progressively from full glassy state into composite state with nanocrystalline particles in the glassy matrix indicating the glass forming ability degrades with increasing Fe. The average size of nanocrystals increases with Fe and the distribution changes from homogenous to heterogeneous. The magnetic property varies from paramagnetic to hard magnetic when the Fe content increases up to about 4at% indicating that the magnetic property is related to the metastable phases.

关键词： Nd-based alloys glass forming ability microstructure magnetic properties

Mechanical Hysteresis of Hexagonal Boron Nitride

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Journal of Wuhan university of Technology(Materials science) 2011年第5期26卷 935-938页

作者：周爱国 school of Materials science and {2. Henan Polytechnic University

Hexagonal boron nitride （h-BN） is an important structural material with layered *** of the plastic anisotropy,this material shows obvious mechanical hysteresis （nonlinear elastic deformation）.There are hysteretic loops at the cyclical load-unload stress-strain curves of ***,two hot-pressed h-BN cylinders with different textures were *** mechanical hysteresis is heavily *** area of hysteretic loop is linearly related with the square of loading *** minor loops attached on the hysteretic loops with the same extreme stresses have congruent *** can be concluded that the mechanical hysteresis of h-BN can be explained by a Kink Nonlinear Elastic model developed from the study of a ternary carbide Ti3SiC2.

关键词： boron nitride nonlinear elastic deformation kink band texture

Vision navigation algorithm for mine agent based on quaternion

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中国有色金属学会会刊：英文版 2011年第S3期21卷 610-615页

作者： LI Ke-zhao1, 4, LEI Wei-wei1, 2. GUO Zeng-zhang1, 2. WU Li-xin3, ZHANG Qin4 1. school of Survey and Land Information engineering,{2., jiaozuo 454003, china 2. Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping,{2., jiaozuo 454003, china 3. College of Resources and Civil engineering, Northeastern university, Shenyang 110819, china 4. College of Geology engineering and Geomatics, Chang’an university, Xi’an 710054, china school of Survey and Land Information engineering Henan Polytechnic University Jiaozuo 454003 China College of Geology engineering and Geomatics Chang'an University Xi'an 710054 China Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping Henan Polytechnic University Jiaozuo 454003 China College of Resources and Civil engineering Northeastern University Shenyang 110819 China

Autonomous relative navigation is the key technology in mining or rescuing. On the basis of mine requirement and the theories of machine vision, an autonomous relative navigation algorithm for mine agent based on quaternion was proposed. In rotation transformation, this algorithm was represented by using quaternion. Because the Jacobi matrix of this method is lower than that of Hall algorithm, the calculation efficiency is improved by using this algorithm. The results of these experiments show that the computation burden of this algorithm based on quaternion is about half that of Hall algorithm. This algorithm based on quaternion is improved as a valid way to solve the problem of mine real-time navigation.

关键词： quaternion mine agent vision navigation

Expansive Behaviors of Self-stressing Concrete under Different Restraining Conditions

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Journal of Wuhan university of Technology(Materials science) 2011年第4期26卷 780-785页

作者：常旭 College of Civil engineering Henan Polytechnic University

The expansive behaviors of the expensive concrete under different restraining conditions were systemically studied. The experimental results indicate that expansive deformation obviously increases before 10 days and tends to be constant after 2. days regardless of the restraining conditions. The mixture ratio of expansive cement and restraining conditions are the main factors affecting expansive deformation. Self-stress can be obtained when the expansive deformation is restrained. The higher self-stress could be obtained when the expensive concrete is restrained by steel tube. For specimens under steel tube restraining, the wall thickness and the length of the steel tube have important influence on self-stress. Both the radial self-stress and axial self-stress in concrete core increase when wall thickness or length of the steel tube increases.

关键词： self-stress expansive concrete restraining condition