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| 1 | Suitability evaluation for land reclamation in mining area:A case study of Gaoqiao bauxite mine显示文摘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. | WANG Shi-dong1, 2, LIU Chang-hua2, ZHANG He-bing2 1. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China 2. School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China | 2011 | 中国有色金属学会会刊:英文版2011，21，S3： | 13 |
| 2 | Relationship between osmotic stress and polyamines conjugated to the deoxyribonucleic acid-protein in wheat seedling roots显示文摘The contents of covalently conjugated polyamines (CC-PAs) and noncovalently conju- gated polyamines (NCC-PAs) to deoxyribonucleic acid-protein (DNP) isolated from wheat (Triticum aestivum L.) seedling roots under osmotic stress were detected. Results showed that after osmotic stress treatment for 7 d, the levels in NCC-spermine (NCC-Spm) and NCC-spermidine (NCC-Spd) of drought-tolerant Yumai No. 18 cv. increased more markedly than that of drought-sensitive Yangmai No. 9 cv., while the NCC-putrescine (NCC-Put) could not be statistically detected in two cultivars. Exogenous Spm treatment alleviated osmotic stress injury to Yangmai No. 9 cv. seedlings, coupled with marked increases of NCC-Spm and NCC-Spd levels of this cultivar. Under PEG osmotic stress, the concomitant treatment of drought-tolerant Yumai No. 18 cv.seedlings with methylglyoxyl-bis (guanylhydrazone) (MGBG), an inhibitor of S-adenosylmethionine decarboxylase (SAMDC), aggravated osmotic stress injury to this cultivar, coupled with market decreases of the NCC-Spm and NCC- Spd levels. The levels in CC-Put and CC-Spd of drought-tolerant Yumai No. 18 cv. increased more markedly than that of drought-sensitive Yangmai No. 9 cv. Under osmotic stress. The treatment of drought-tolerant Yumai No. 18 cv. seedlings with phenanthrolin (o-Phen), an inhibitor of transglutaminase (TGase), aggravated osmotic stress injury to this cultivar, coupled with a reduction of sum contents of CC-Put+CC-Spd. These results suggested that NCC-Spm and NCC-Spd, together with CC-Put and CC-Spd, in DNP of roots could enhance tolerance of the wheat seedlings to osmotic stress. | LIU Huaipan1,2, JI Xiu’e2, YU Bingjun1 & LIU Youliang1 1. Ministry of Agriculture Key Laboratory of Crop Growth Regulation, College of Life Science, Nanjing Agricultural University, Nanjing 210095, China 2. Key Laboratory of Plant Science, Zhoukou Normal College, Henan 466000, China | 2006 | Science China(Life Sciences)2006，49，1： | 12 |
| 3 | Sliding Mode Control with Disturbance Observer for a Class of Nonlinear Systems显示文摘This paper is concerned with the stabilization problem for a class of nonlinear systems with disturbance. The disturbance model is unknown and the first derivative of disturbance is bounded. Firstly, a general disturbance observer is proposed to estimate disturbance approximatively. Secondly, since the bound of the disturbance observer error is unknown, an adaptive sliding mode controller is designed to guarantee that the state of system asymptotically converges to zero and the unknown bound can be adjusted by an adaptive law. Finally, an example is given to illustrate the effectiveness of the proposed method. | Lei-Po Liu Zhu-Mu Fu Xiao-Na Song College of Electric and Information Engineering, Henan University of Science and Technology, Luoyang 471003, China | 2012 | International Journal of Automation and computing2012，9，5： | 11 |
| 4 | Research on the Influence of Cutting Condition on the Surface Microstruct ure of Ultra-thin Wall Parts in Ultrasonic Vibration Cutting显示文摘In many fields of high-tech industry the ultra-t hi n wall parts are employed. In this paper the experiments were carried out to dis cuss the surface microstructure of the camera’s guided drawtube by applying ult rasonic vibration cutting device to the traditional lathe. The influence rule of the cutting condition on the surface roughness was put forward, which was drawn by comparing the ultrasonic cutting with the common cutting by use of the cemen ted carbide tool and the polycrystalline diamond (PCD) tool. The test results sh owed that the ultrasonic cutting performs better than the common cutting in the same condition. According to the test results analyzing, the surface characteriz ation is influenced clearly by the rigidity of the acoustic system and the machi ne tool, as well the setting height of the tool tip. Otherwise, the dense regula r low frequency vibration ripples will be scraped on the machined surface. When the tool tip is set higher than the rotating center of the work piece by three t imes of the amplitude of ultrasonic vibration, the vibration ripples behave alig ht; they turn light and shade alternatively when the tool tip is lower than the rotating center of the work piece by three times of the amplitude of ultrasonic vibration. According to the test result analyzing, the following conclusions are put forward: 1) The surface roughness in ultrasonic cutting is better than that in common cutting. Under a one third critical cutting velocity, the value of th e surface roughness in ultrasonic cutting rise slightly along with the cutting v elocity, while in common cutting it decreases contrast to the cutting velocity; the curves of the surface roughness in ultrasonic cutting and common cutting see m to be alike, both increase along with the feed rate and the cutting depth, but the value in ultrasonic cutting is smaller in the same condition.2) The influen ce of the coolant on the surface roughness cannot be ignored. The kerosene can b e employed to improve the surface roughness in ultrasonic machining.3) In ultras onic cutting process of aluminum alloy ultra-thin wall work piece, the PCD tool performs better than the cemented carbide tools.4) The vibration ripples result from the not enough rigidity of the acoustic system and the improper setting he ight of the tool tip. The departure of the tool tip from the rotating center of the work piece to some extent causes the vibration ripples on the machined surfa ce. | GAO Guo-fu, ZHAO Bo, JIAO Feng, LIU Chuan-shao (Department of Mechanical Engineering, Jiaozuo Institute of Technolog y, Henan 454000, China) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 9 |
| 5 | Discussion on the Index System of Intensive Land Use Evaluation in Development Area显示文摘The establishment of evaluation index system is the key to the evaluation of intensive land use.On the basis of expounding connotation,characteristics and the principle of establishing evaluation index system,and as for the problems existing in Evaluation Regulation(Trial)of Intensive Land Use in Development Area,regarding the evaluation index system of intensive land use in the development area,in the light of the connotation of intensive land use in development area,coupled with the practical situation of the land use in China's development area,after referring to the research achievements of domestic and abroad scholars,some suggestions are put forward in order to improve and perfect the evaluation index system of intensive land us in development area. | LIU Xiang-dong1,GAO Jie2 1.School of Land Science and Technology,China University of Geosciences,Beijing 100083,China 2.Weida Real Estate Evaluation Corporation of Henan Province,Luoyang 471000,China | 2011 | Asian Agricultural Research2011，3，2： | 7 |
| 6 | An Efficient Method for the Synthesis of Acyl-diazenes Using NaNO_2/NaHSO_4·H_2O显示文摘 | Jian Ping LI*, Ping LIU, Yu Lu WANG College of Chemistry & Environmental Science, Henan Normal University, Xinxiang 453002 Key Laboratory of Environmental Science and Technology of High Education of Henan Province, Xinxiang 453002 | 2003 | Chinese Chemical Letters2003，14，7： | 7 |
| 7 | Temperature dependence of the point defect properties of GaN thin films studied by terahertz time-domain spectroscopy显示文摘The dielectric functions of GaN for the temperature and frequency ranges of 10–300 K and 0.3–1 THz are obtained using terahertz time-domain spectroscopy.It is found that there are oscillations of the dielectric functions at various temperatures.Physically,the oscillation behavior is attributed to the resonance states of the point defects in the material.Furthermore,the dielectric functions are well fitted by the combination of the simple Drude model together with the classical damped oscillator model.According to the values of the fitting parameters,the concentration and electron lifetime of the point defects for various temperatures are determined,and the temperature dependences of them are in accordance with the previously reported result.Therefore,terahertz time-domain spectroscopy can be considered as a promising technique for investigating the relevant characteristics of the point defects in semiconductor materials. | FANG HeNan ZHANG Rong LIU Bin LI YeCao FU DeYi LI Yi XIE ZiLi ZHUANG Zhe ZHENG YouDou WU JingBo JIN BiaoBing CHEN Jian WU PeiHeng | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，11： | 6 |
| 8 | Effects of salvianolic acid B on in vitro growth inhibition and apoptosis induction of retinoblastoma cells显示文摘AIM: To observe the effects of salvianolic acid B (SalB) on in vitro growth inhibition and apoptosis induction of retinoblastoma HXO-RB44 cells. · METHODS: The effects of SalB on the HXO-RB44 cells proliferation in vitro were observed by MTT colorimetric method. The morphological changes of apoptosis before and after the treatment of SalB were observed by Hoechst 33258 fluorescent staining method. Apoptosis rate and cell cycle changes of HXO-RB44 cells were detected by flow cytometer at 48 hours after treated by SalB. The expression changes of Caspase-3 protein in HXO-RB44 cells were detected by Western Blot. · RESULTS: SalB significantly inhibited the growth of HXO-RB44 cells, while the inhibition was in a concentration-and time-dependent manner. The results of fluorescent staining method indicated that HXO-RB44 cells showed significant phenomenon of apoptosis including karyorrhexis, fragmentation and the formation of apoptotic bodies, etc. after 24, 48 and 72 hours co-culturing of SalB and HXO-RB44 cells. The results of flow cytometer showed that the apoptosis rate and the proportion of cells in S phase were gradually increased at 48 hours and 72 hours after treated by different concentrations of SalB. Western Blot strip showed that the expression of Caspase-3 protein in HXO-RB44 cells was gradually increased with the increase of the concentration of SalB. · CONCLUSION: SalB can significantly affect on HXO-RB44 cells growth inhibition and apoptosis induction which may be achieved through the up-regulation of Caspase-3 expression and the induction of cell cycle arrest. | Xing-An Liu Department of Radiotherapy, People’s Hospital of Zhengzhou, Zhengzhou 450003, Henan Province, China | 2012 | International Journal of Ophthalmology(English edition)2012，5，3： | 6 |
| 9 | Extraction of vegetation fraction information from CBERS images based on VBSI vegetation index in Kaixian county显示文摘Based on the mixed pixel model, the vegetation fraction of Kaixian county, China, was extracted with three free CBERS images. VBSI vegetation index suitable for CBERS images constructed with FCD (forest canopy density) model principle was put forward by ITTO (International Tropical Timber Organization) was used, considering the underestimation of vegetation fraction using NDVI in low mountain-hill region influenced by soils and shadows. And vegetation fraction was divided into five categories from low to high in order to study the special variation of vegetation cover. The results show that the vegetation cover of the region is overall good, with an average of 50%. The area of vegetation fraction below 30% accounts for 11.7% of the entire studied area, mainly concentrates in central eastern Kaixian county, where is the major development zone of cities and towns; that between 30% and 60% accounts for 62%; and that higher than 60% accounts for 26%, and mostly locates in northern middle-mountain area. | GAO Zhi-fang1, NIU Hai-peng1, LIU Jin-ping2 1. College of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China 2. College of Geographic Sciences, Chongqing Normal University, Chongqing 400047, China | 2011 | 中国有色金属学会会刊:英文版2011，21，S3： | 4 |
| 10 | Complex sources of air-soil-water pollution processes in the Miyun reservoir region显示文摘The comprehensive impact of atmospheric dry deposition and wet deposition and the pollution sources of farmlands, mining areas, and towns along the Baihe River on the water quality of Miyun reservoir is investigated from the angle of the complex sources of air-soil-water pollution processes, in the context of the 1990-2001 precipitation chemical data at Shangdianzi station--a WMO regional background air pollution monitoring station 15 km far from the Miyun reservoir, in conjunction with the atmospheric dry deposition and wet deposition data of the 2002-2003 Beijing City Air Pollution Observation Field Experiment (BECAPEX). Analysis results suggest that the major ions in precipitation in the Miyun reservoir region in this period were SO, NO, NH and Ca2+; wet acid deposition quantity of Miyun reservoir in the summer half year (April to September) was greater than the quantity in the winter half year (October to March), and the annual wet acid deposition in the reservoir exhibited a rising trend with the mean 1038.45 t, the maximum 1766.31 t occurred in 1996, and the minimum 604.02 t in 1994; the long-term averaged pH of atmospheric precipitation in the Miyun reservoir region was 5.20, i.e. weakly acidic, and the interannual variation of pH values displayed a falling trend. pH values of water body at various depths in the Miyun reservoir were all greater than 7.0, but they exhibited vertical and horizontal nonhomogeneity, and at the same region pH decreased vertically with depth; the 2002 and 2003 annual dustfalls in the Miyun reservoir were 13513.08 t and 3577.64 t, respectively, and the spring dustfall was the number one in a year, accounting for the 61.91% and 44.56% of the annual totals of 2002 and 2003, respectively. Because the atmospheric dry deposition and wet depositions contain multiple types heavy metal elements and harmful elements, they to some extent exacerbated the eutrophication, acidification and potential heavy metal pollution of the reservoir water. The above comprehensive analysis results reveal the complex source characters of the air-soil-water pollution process and the multi-sphere interaction effect. Besides, summer (rainy season) is a season when local soil pollutants enter the water system of reservoir after being washed out by torrential rain or heavy precipitation, which starts the air-soil- water chaining pollution processes, and results in the water pollution of rivers and reservoirs. It is found from the statistical analysis in this paper that the water pollution of Miyun reservoir was correlated with the rain wash-out and confluent flow in the peripheral and upstream local region of the reservoir, and the pollutant concentration of the reservoir water was significantly correlated with the upstream local region precipitation. Those correlation characters reveal the effect of the air-soil-water multi-spheric interaction of reservoir water pollution process. This paper presents the point of view of the complex source analysis of reservoir water pollution and a technical approach for tracing the spatial distribution of the upstream pollution source of the water systems of reservoir. | YANG Dongzhen, XU Xiangde, LIU Xiaoduan, XU Qing, DING Guoan, CHENG Xinghong, CHEN Huailiang, ZHOU Huaigang, WANG Zhenfa, WANG Wenyan Key Laboratory of Atmospheric Chemistry, Center for Atmosphere Watch and Services, Chinese Academy of Meteorological Sciences, CMA, Beijing 100081, China Key Laboratory of Meteorological Disasters, CAMS, Beijing 100081, China National Center for Geological Testing, Beijing 100037, China Meteorological Bureau of Henan Province, Zhenzhou 450000, China Shangdianzi Background Atmospheric Pollution Observation Station, Miyun County, Beijing 101507, China | 2005 | Science China Earth Sciences2005，48，z2： | 4 |
| 11 | Geochronology and Geochemical Characteristics of Intrusion in the Jinchangliang Gold Deposit,Inner Mongolia and Their Tectonic Significance显示文摘Discovered and mined in recent years, the Jinchangliang gold deposit has not yet been studied in its genetic type. In this paper, the geological features of ore deposit, S isotopic composition, metallogenic age and elements geochemical of the granite closely related to mineralization were discussed. The results of the geological features of ore deposit and S isotopic composition show that ore-bearing hydrothermal solution was closely related with the intrusion of magmatic. The granite is characteristic of high silica SiO_2=72.38%–72.98%, high aluminum and Al_2O_3=14.22%–14.35%, low calcium CaO=0.16% –0.26%, and low value of FeOT/MgO(6.86–7.73), and rich in alkalis Na_2O+K_2O=9.11%–9.24%, suggesting that it is high-K calc-alkaline, highly fractionated, weak aluminum A-type granite. The REE patterns are inclined to right and show intense fractionation between LREE and HREE, without obvious negative Eu anomaly(δEu=0.80–0.84). The primitive mantle-normalized spidergrams are characterized by depletion of Ba, U, Ta, Nb, Zr, Ti and P, which implies that the granite has the characteristics of the crust-mantle mixing. S isotopes also indicate that the material source of gold deposit is closely related to the granite rocks. The LA-ICP-MS Zircon UPb age of the Damiao rock mass medium-fine grained monzogranite(belonging to the early IndoChina) is(245±1) Ma. It shows that Jinchangliang gold deposit was not formed in Yanshanian, but the early Indo-China. Specifically speaking, the deposit was formed in the collision stage of the North China plate and the Siberian plate. | SUN Zhenjun SUN Guosheng YU Henan TIAN Yi LIU Shanli XIANG Zhu MENG Jian XUE Huaiyu LU Lina | 2015 | Acta Geologica Sinica(English Edition)2015，89，6： | 4 |
| 12 | Effects of Exposure to Trinitrotoluene on Male Reproduction显示文摘A cross-sectional study was performed in 2 plants located in Henan Province in 1990 for observing the reproductive and sexual functions of male workers exposed to trinitrotoluene(TNT).The TNT concentrations in the workplace air,excpet the packing site,were found to have exceeded MAC(1mg/m^3).TNT exposed maled workers complained of more sexual disorders such as impotence,the loss of libido and sexual hypoesthesia than the control group.Compared with the control group,the volume of semen and percentage of motile spermatozoa were found to have significantly decreased.and the sperm malformation incidence increased significantly in TNT exposed workers.The serum testosterone content in TNT exposed male workers was significantly decreased too. | LI YI, JIANG QUAN-GUAN, YAO SHOU-QI, LIU WEI, TIAN GAO-JUN,AND GUI JING-WEIDepartment of Occupational Health, School of Public Health, Beijing Medical University, Beijing ^Hebi Institute of Occupational Health, Henan Province Anyang Institute of Occupational Health, Henan Province Xinxiang Institute of Occupational Health, Henan Province, China Prof. Jiang Quan-guan, Department of Occupational Health, School of Public Health, Beijing Medical University, Beijing 100083 China. | 1993 | Biomedical and Environmental Sciences1993，6，2： | 3 |
| 13 | Research on the Characters of the Cutting Force in Vibration Cutting Particle Reinforced Metal Matrix Composites SiC_p/Al显示文摘In this paper, turning experiments of machining particle reinforced metal matri x composites(PRMMCs) SiC p/Al with PCD tools have been carried out. The cutting force characteristics in ultrasonic vibration turning compared with that in com mon turning were studied. Through the single factor experiments and multiple fac tor orthogonal experiments, the influences of three kinds of cutting conditions such as cutting velocity, amount of feed and cutting depth on cutting force were analyzed in detail. Meanwhile, according to the experimental data, the empirica l formula of main cutting force in ultrasonic vibration turning was conclude d. According to the test results, the cutting force is direct proportion to cutt ing depth basically according to the relation between cutting force and other fa ctors, which is similar to that of common cutting, so is the feed rate, but the influence is not so big. The influence of cutting speed is larger than that of f eed rate on cutting force because the efficient cutting time increases in vibrat ion cycle with the increase of cutting speed, which causes cutting force to incr ease. The research results indicate: (1) Ultrasonic vibration turning possesses much lower main cutting force than that in common turning when adopting smaller cutting parameters. If using larger cutting parameters, the difference will inco nspicuous. (2) There are remarkable differences of cutting force-cutting veloci ty characteristics in ultrasonic vibration turning from that in common turning m ainly because built-up edge does not emerge in ultrasonic turning unlike common turning in corresponding velocity range. (3) In ultrasonic vibration cutting, t he influence of cutting velocity on cutting force is most obvious among thre e cutting parameters and the influence of feed is smallest. So adopting lower cu tting velocity and larger cutting depth not only can reduce cutting force effect ively but also can ensure cutting efficiency. (4) The conclusions are useful in precision and super precision manufacturing thin-wall pieces. | LIU Chuan-shao 1, ZHAO Bo 1,2, GAO Guo-fu 1, JIAO F eng 1 (1. Department of Mechanical Engineering, Jiaozuo Institute of Techno logy, Henan 454000, China 2. Institute of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 3 |
| 14 | Studies on the Preparation and the Stability of SOD Modified by Lauric Acid显示文摘Tkls paper reported that a way or Preparlng superoxlde dlsmutase (SoD) modiried by lauric acid(LA-SoD) and study on stablllty of LA-SoD. The resultS showed that LA-SoD had high speclfic actlvlty,highstablllty and high rate of recovery. The stabiliy or LA-SoD ln temperature, pH and kuman gastrlc juice wasmuch higher than that of natural SOD. Because LA-SOD ls kept for a long tlme at room temperature, it canwiden the appIled range of SoD and brlng out conslderable benirlclaI results both in society and economy. | Gui Xingfeu, Yang Ping, Qiu Yanxia, Liu Jun(Henan Medical College for Health Staff, Zhengzhou 450003,China)Zou Guolin(College of Life Sciences,Wuhan University, Wuhan 430072,China) | 1998 | Wuhan University Journal of Natural Sciences1998，3，2： | 2 |
| 15 | Fluorescence and Photosensitizing Behavior of N-(p-Phenoxyphenyl)methacrylamide and Its Polymer显示文摘A novel acrylic monomer bearing aromatic ethereality group N-(p -phenoxy-phenyl) methacrylamide(MAPOA) was synthesized and polymerized. The fluorescence spectra of MAPOA and its polymer were studied, showing that the polymer displays a stronger fluorescence than its monomer at the same chromophore concentration. The fluorescence of P(MAPOA) was quenched by adding electron deficiency monomers such as MMA, AN etc .. It is another example of showing the 'fluorescence structural self-quenching effect' as we reported previously, from which it is demonstrated again that this phenomenon is not an accidental one but a common effect for acrylic monomers bearing electon-donating chromophores. The photopolymerization of AN sensitized by MAPOA and P(MAPOA) was studied. The kinetic equation of the polymerization was obtained and represented as follows: R _p∝ 0.38 × 0.78 , R _p∝ 0.33 × 0.71 The overall activation energies were determined to be E_ a =24\^22 kJ/mol(MAPOA) and E_ a =26\^31 kJ/mol respectively. The fluorescence analysis of the resulted P(AN) showed that the sensitizer also entered into the P(AN) chains. A mechanism of the formation of a charge transfer complex and free radical initiation was suggested for the photopolymerization of AN sensitized by MAPOA and P(MAPOA). | GAO Qing-yu 1,2* , LIU Zhi-gui 1, GUAN Hui-li 1, YANG Geng-xu 1 and YU Xian-da 2 1. Laboratory of Lubrication and Functional Materials, Henan University, Kaifeng 475001, P.R. China 2. Lanzhou Institute of Chemistry and Physics, Chinese Academy of | 2002 | Chemical Research in Chinese Universities2002，18，1： | 2 |
| 16 | FUNCTIONS OF TEACHER′S REPETITION IN CLASSROOM INTERACTION显示文摘 | Liu Hanjie(English Department of Henan Finance and Econmic Institure,Zhengzhou,450000) | 1998 | 天中学刊1998，13，S1： | 2 |
| 17 | Magnetorheological finishing of an irregular-shaped small-bore complex component using a small ball-end permanent-magnet polishing head显示文摘A novel magnetorheological finishing(MRF)process using a small ball-end permanent-magnet polishing head is proposed,and a four-axes linkage dedicated MRF machine tool is fabricated to achieve the nanofinishing of an irregularψ-shaped small-bore complex component with concave surfaces of a curvature radius less than3 mm.The processing method of the complex component is introduced.Magnetostatic simulation during the entire finishing path is carried out to analyze the material removal characteristics.A typicalψ-shaped small-bore complex component is polished on the developed device,and a fine surface quality is obtained with surface roughness Raof 0.0107μm and surface accuracy of the finished spherical surfaces of 0.3320μm(PV).These findings indicate that the proposed MRF process can perform the nanofinishing of a kind of small-bore complex component with small-curvature-radius concave surfaces. | Henan Liu Jian Cheng Tingzhang Wang Mingjun Chen | 2019 | Nanotechnology and Precision Engineering2019，2，3： | 2 |
| 18 | Analysis to driving forces of land use change in Lu’an mining area显示文摘By selecting impact factors of driving force and formulating evaluation criteria of the impacts, the evaluation system of corresponding driving force impact of land use change was established. Taking Lu'an mining area as an example, the specific impact factors of coal mine were comprehensively evaluated and analyzed in order to carry out qualitative and quantitative analysis for the driving force of mining-land use change. The principal component analysis shows that the social and economic development in mining area from 2000 to 2007 demonstrates continuous accelerate trends, and the impacts of its overall driving force to land use change are increased gradually. The socio-economic factors have more impacts to mining-land use change than those of the natural resources. The main driving force of mining-land use change also include population, technological progress and policy. | LIU Chang-hua, MA Xiao-xiao School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454003, China | 2011 | 中国有色金属学会会刊:英文版2011，21，S3： | 2 |
| 19 | New Tannins from Lythrum sulicaria L显示文摘NewTanninsfromLythrumSalicariaLMaster'sDegree;Xiu-JingMaSupervisors;Chun-RuJi;Yu-MingWang;Guang-QiangZhang;andYan-ZeLiu(Henan... | Master’s Degree Xiu-Jing MaSupervisors Chun-RuJi Yu-Ming Wang Guang-Qiang Zhang and Yan-Ze Liu(Henan College of Traditional Chinese Medicine ,Zhengzhou 450003)Received December 26,1995,Accepted September 19,1996The crude drug Lythrum salicaria L(Lythr | 1996 | Journal of Chinese Pharmaceutical Sciences1996，5，4： | 2 |
| 20 | Optimization of thermomechanical processes in Cu-Cr-Zr lead frame alloy using neural networks and genetic algorithms显示文摘The thermomechanical treatment process is effective in enhancing the properties of the lead frame copper alloy. In this study, an optimal pattern of the thermomechanical processes for Cu-Cr-Zr was investegated using an intelligent control technique consisting of neural networks and genetic algorithms. The input parameters of the artificial neural network (ANN) are the reduction ratio of cold rolling, aging temperature and aging time. The outputs of the ANN model are the two most important properties of hardness and conductivity. Based on the successfully trained ANN model, genetic algorithms (GA) are used to optimize the input parameters of the model and select perfect combinations of thermomechanical processing parameters and properties. The good generalization performance and optimized results of the integrated model are achieved. | SU Juanhua1,2, LIU Ping2, DONG Qiming2 & LI Hejun1 1. College of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China 2. College of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China | 2005 | Science China(Technological Sciences)2005，48，5： | 2 |
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