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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, china 2. {2. of Surveying and Land Information engineering, henan polytechnic University, jiaozuo 454000, china College of Resources science and Technology Beijing Normal University Beijing 100875 China school of Surveying and Land Information {1. 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

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 {1. 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 {1. 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

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, {2. 454003, china 2. school of Surveying and land Information engineering, henan polytechnic University, {2. 454003, china 3. Qingdao Branch of Naval Aeronautical engineering Institute, Qingdao 2.6041, china 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 {1. 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

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 {1., {2. polytechnic University, jiaozuo 454000, china school of Surveying & Land Information {1. 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 8.43{1.8×1.7 RMB yuan/a.

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

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 {1., {2. polytechnic University, jiaozuo 454000, china school of Surveying and Land Information {1. 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

Digital close-range photogrammetric application to small-scale physical simulation experiment

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中国有色金属学会会刊：英文版 2011年第S3期21卷 681-685页

作者： LI Chun-yi1. CUI Xi-min2. YU Yi-ju3 1. {1. of Surveying and Landing Information engineering, {2. polytechnic University, jiaozuo 454003, china 2. College of Geoscience and Surveying engineering, china University of Mining and Technology, Beijing 1.0083, china 3. Surveying and Mapping Press, Beijing 1.0045, china school of Surveying and Landing Information {1. Henan Polytechnic University Jiaozuo 454003 China College of Geoscience and Surveying {1. China University of Mining and Technology Beijing 100083 China Surveying and Mapping Press Beijing 100045 China

In order to research the possibility of digital close-range photogrammetric surveying in small scale physical simulation experiment, physical model coinciding with engineering practice was constructed based on similar theory. The datum processing method and surveying precision of digital close-range photogrammetric were analyzed. And the function relationship between overburden subsidence factor qr and the ratio z/H of stratum horizon z and mining depth H was researched. The results show that surveying points position mean error along horizontal direction is ±0.1.1.mm and vertical direction is ±0.1.{1.mm. Therefore, multi-taking station cross direction digital close-range photogrammetric can completely satisfy the precision need of physical simulation experiment. And the empirical formula can be utilized to represent evolution law of stratum subsidence factor.

关键词： close-range photogrammetric physical simulation light-rays adjustment surveying precision subsidence factor

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. polytechnic University, jiaozuo 454003, china 2. Key Laboratory of Mine Spatial Information Technologies of State Bureau of Surveying and Mapping, {2. polytechnic University, jiaozuo 454003, china 3. College of Resources and Civil engineering, Northeastern University, Shenyang 1.081., china 4. College of Geology engineering and Geomatics, Chang’an University, Xi’an 71.054, china school of Survey and Land Information {1. 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

Quick image-processing method of UAV without control points data in earthquake disaster area

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中国有色金属学会会刊：英文版 2011年第S3期21卷 523-528页

作者： LI Chang-chun1. ZHANG Guang-sheng1. LEI Tian-jie2. 3, GONG A-du2. 3 1. school of Surveying & Land Information engineering, {2. polytechnic University, jiaozuo 454000, china 2. Key Laboratory of Environmental Change and Natural Disaster, Ministry of Education, Beijing Normal University, Beijing 1.0875, china 3. Ministry of Civil Affairs/Ministry of Education of china Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 1.0875, china school of Surveying & Land Information {1. Henan Polytechnic University Jiaozuo 454000 China Key Laboratory of Environmental Change and Natural Disaster Ministry of Education Beijing Normal University Beijing 100875 China Ministry of Civil Affairs/Ministry of Education of china Academy of Disaster Reduction and Emergency Management Beijing Normal University Beijing 100875 China

The methods of unmanned aerial vehicles images splicing rapidly and rectifying without control points data, only using auxiliary data recorded by unmanned aerial vehicle (UAV) system, were researched. Two algorithms were proposed, including UAV images auto- splicing rapidly after image blocking and UAV images rectifying based on pseudo center points of auxiliary data. When SIFT algorithm for UAV images splicing is applied, the accuracy is very high, but the efficiency is very low. The splicing efficiency is improved greatly based on SIFT algorithm after image blocking. The results show that rectifying accuracy is very high and has no visual dislocation when pseudo center points of auxiliary data is applied.

关键词： unmanned aerial vehicles SIFT algorithm blocking quickly splicing rectification

Theoretical studies on the possible conformers and properties of tetranitrodiazidoacetylhexaazaisowurtzitane (TNDAIW)

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science{1. Chemistry 2004年第5期47卷 414-419页

作者： WU Yukai1. OU Yuxiang1. LIU Zhiguo1.2., LIU Jinquan1. MENG Zheng1.& CHEN Boren1.1. {1. of Materials science and {2., Beijing Institute of Technology, Beijing 1.0081. china 2. {1. of Chemistry and Chemical {2., henan University, Kaifeng 475001. china school of Materials {1. and {2. Beijing Institute of Technology Beijing China school of Chemistry and Chemical {1. Henan University Kaifeng China

Tetranitrodiazidoacetylhexaazaisowurtzitane (TNDAIW) is a novel polyazapolycyclic caged polyazidonitramine explosive first synthesized in our laboratory. All of the possible con- formers of TNDAIW are optimized using both the AM1.and PM3 methods. TNDAIW is predicted to have more polymorphs than hexanitrohexaazoisowurtzitane (CL-2.). The HF/6-31.(d) level of theory is used to investigate the lowest {1. structures of D-TNDAIW for both AM1.and PM3. The possible conformers of TNDAIW are predicted to be more stable than epsilon-CL-2. based on the N-NO2.bond lengths. The impact and shock sensitivities of both the possible DA- and DP-TNDAIW are lower than the corresponding ones of epsilon-CL-2.. TNDAIW with the possible conformers is estimated to be a promising novel high {1. density explosive.

关键词： tetranitrodiazidoacetylhexaazaisowurtzitane, molecular modeling, impact and shock sensitivities.