0455-2059
2012 Issue 3
Environmental performance measure and its temporal-spatial changes in China based on DEA and Malmquist index models
QI Jun~1;ZHAO Si-dong~2;YANG Yong-chun~2;LI Wei-wei~2 1.Shanxi Urban & Rural Planning Design Institute;Taiyuan 030011;China 2.School of Resouces and Environmental Sciences;Lanzhou University;Lanzhou 730000;China
QI Jun~1;ZHAO Si-dong~2;YANG Yong-chun~2;LI Wei-wei~2 1.Shanxi Urban & Rural Planning Design Institute;Taiyuan 030011;China 2.School of Resouces and Environmental Sciences;Lanzhou University;Lanzhou 730000;China
..............page:34-45
I-projective and I-injective modules
LI Jin College of Mathematics and Information Science;Northwest Normal University;Lanzhou 730070;China
LI Jin College of Mathematics and Information Science;Northwest Normal University;Lanzhou 730070;China
..............page:90-95
Hydrocarbon source evaluation and oil source contrast of the triassic system in southwest margin,Ordos basin
ZHAO Yan-de~;LUO An-xiang~;SUN Bai-nian~1;HUI Xiao~; ZHANG Zhong-yi~;CHENG Dang-xing~ 1.School of Earth Science;Lanzhou University;Lanzhou 730000;China 2.Exploration & Development Research Institute;Changqing Oilfieid Company;PetroChina; Xi’an 710018;China 3.National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields; PetroChina;Xi’an 710018;China
ZHAO Yan-de~;LUO An-xiang~;SUN Bai-nian~1;HUI Xiao~; ZHANG Zhong-yi~;CHENG Dang-xing~ 1.School of Earth Science;Lanzhou University;Lanzhou 730000;China 2.Exploration & Development Research Institute;Changqing Oilfieid Company;PetroChina; Xi’an 710018;China 3.National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields; PetroChina;Xi’an 710018;China
..............page:1-6,13
Ruin probability for a delayed-claims risk model under ND claims
XIAO Hong-min;LI Hong College of Mathematics and Information Science;Northwest Normal University;Lanzhou 730070;China
XIAO Hong-min;LI Hong College of Mathematics and Information Science;Northwest Normal University;Lanzhou 730070;China
..............page:118-122
Stability and bifurcation analysis of a predator-prey model with piecewise constant arguments
CHEN Si-yang;ZHANG Yan College of Mathematics and Information Science;Shaanxi Normal University;Xi’an 710062;China
CHEN Si-yang;ZHANG Yan College of Mathematics and Information Science;Shaanxi Normal University;Xi’an 710062;China
..............page:103-112,117
Irrigation and fertilizer application of dry-period affect yield of spring wheat and water use efficiency in semi-arid regions
LI Wen-long~1;XU Jing~;LI Zi-zhen~4 1.Key Laboratory of Grassland Agro-ecology System Agro-ecosystems;School of Pastoral Agriculture Science and Technology;Lanzhou University;Lanzhou 730000;China 2.School of Life Sciences;Lanzhou University;Lanzhou 730000;China 3.College of Resource Environment & Urban and Rural Planning;Lanzhou University of Finance and Economics; Lanzhou 730020;China 4.School of Mathematics and Statistics;Lanzhou University;Lanzhou 730000;China
LI Wen-long~1;XU Jing~;LI Zi-zhen~4 1.Key Laboratory of Grassland Agro-ecology System Agro-ecosystems;School of Pastoral Agriculture Science and Technology;Lanzhou University;Lanzhou 730000;China 2.School of Life Sciences;Lanzhou University;Lanzhou 730000;China 3.College of Resource Environment & Urban and Rural Planning;Lanzhou University of Finance and Economics; Lanzhou 730020;China 4.School of Mathematics and Statistics;Lanzhou University;Lanzhou 730000;China
..............page:76-82
..............page:139
Environment factors and characteristics of endangered Sinopodophyllum hexandrum communities in Tibet
GUO Qi-qiang~;WANG Shu-li~;REN De-zhi~;PAN Gang~;LI Hui’e~1 1.Institute of Plateau Ecology;Tibet Agricultural and Animal Husbandry College;Linzhi 860000;Tibet;China 2.National Key Station for Field Scientific Observation & Experiment;Linzhi 860000;Tibet;China
GUO Qi-qiang~;WANG Shu-li~;REN De-zhi~;PAN Gang~;LI Hui’e~1 1.Institute of Plateau Ecology;Tibet Agricultural and Animal Husbandry College;Linzhi 860000;Tibet;China 2.National Key Station for Field Scientific Observation & Experiment;Linzhi 860000;Tibet;China
..............page:58-63,69
Monte Carlo simulation of the neutron porosity logging using D-D neutron generator
YAN Yan~1;LI Bing-ying~1;ZHENG Shi-ping~2;YAN Yong-hong~1; YANG Yao~1;YAO Ze-en~;LIU Jiong~2 1.School of Nuclear Science and Technology;Lanzhou University;Lanzhou 730000;China 2.Research Centre for Logging Tool While Drilling;China National Petrol Corporation Logging; Xian 710061;China 3.Engineering Research Center for Neutron Application with the Ministry of Education;Lanzhou University; Lanzhou 730000;China
YAN Yan~1;LI Bing-ying~1;ZHENG Shi-ping~2;YAN Yong-hong~1; YANG Yao~1;YAO Ze-en~;LIU Jiong~2 1.School of Nuclear Science and Technology;Lanzhou University;Lanzhou 730000;China 2.Research Centre for Logging Tool While Drilling;China National Petrol Corporation Logging; Xian 710061;China 3.Engineering Research Center for Neutron Application with the Ministry of Education;Lanzhou University; Lanzhou 730000;China
..............page:123-127,132
N and P stoichiometry of plant and soil on slope direction gradient of sub-alpine meadows
LIU Min-xia~;WANG Gang~1 1.Key Laboratory of Arid and Grassland Ecology with the Ministry of Education;Lanzhou University; Lanzhou 730000;China 2.School of Geography and Environment Sciences;Northwest Normal University;Lanzhou 730070;China
LIU Min-xia~;WANG Gang~1 1.Key Laboratory of Arid and Grassland Ecology with the Ministry of Education;Lanzhou University; Lanzhou 730000;China 2.School of Geography and Environment Sciences;Northwest Normal University;Lanzhou 730070;China
..............page:70-75
Diagenetic facies and its micro-pore structure of Yanchang formation Chang 6 reservoir in Huaqing area
SHI Tiao-tiao~1;SUN Wei~1;HE Sheng-ping~;NIU Xiao-bing~;LI Ting-yan~; YIN Hong-jia~1 1.State Key Laboratory of Continental Dynamics;Department of Geology;Northwest University; Xi’an 710069;China 2.National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields; PetroChina;Xi’an 710018;China 3.Exploration & Development Research Institute;Changqing Oilfieid Company;PetroChina; Xi’an 710018;China
SHI Tiao-tiao~1;SUN Wei~1;HE Sheng-ping~;NIU Xiao-bing~;LI Ting-yan~; YIN Hong-jia~1 1.State Key Laboratory of Continental Dynamics;Department of Geology;Northwest University; Xi’an 710069;China 2.National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields; PetroChina;Xi’an 710018;China 3.Exploration & Development Research Institute;Changqing Oilfieid Company;PetroChina; Xi’an 710018;China
..............page:7-13
The MLE of GE distribution with interval censored data
CHENG Cong-hua~1;CHEN Jin-yuan~2 1.School of Mathematics and Computation Science;Zhanjiang Normal University;Zhanjiang 524048; Guangdong;China 2.School of Mathematics and Statistics;Lanzhou" University;Lanzhou 730000;China
CHENG Cong-hua~1;CHEN Jin-yuan~2 1.School of Mathematics and Computation Science;Zhanjiang Normal University;Zhanjiang 524048; Guangdong;China 2.School of Mathematics and Statistics;Lanzhou" University;Lanzhou 730000;China
..............page:113-117
A prediction analysis of the ecological footprint time series of Gansu province based on the GM-ANN model
ZHAO Yu~;LI Wen-long~3;LI Zi-zhen~;MA Zhi-hui~4 1.Key Laboratory of Arid and Grassland Ecology with the Ministry of Education;Lanzhou University; Lanzhou 730000;China 2.School of Statistics;Lanzhou University of Finance and Economics;Lanzhou 730020;China 3.School of Pastoral Agriculture Science and Technology;Lanzhou University;Lanzhou 730020;China 4.School of Mathematics and Statistics;Lanzhou University;Lanzhou 730000;China
ZHAO Yu~;LI Wen-long~3;LI Zi-zhen~;MA Zhi-hui~4 1.Key Laboratory of Arid and Grassland Ecology with the Ministry of Education;Lanzhou University; Lanzhou 730000;China 2.School of Statistics;Lanzhou University of Finance and Economics;Lanzhou 730020;China 3.School of Pastoral Agriculture Science and Technology;Lanzhou University;Lanzhou 730020;China 4.School of Mathematics and Statistics;Lanzhou University;Lanzhou 730000;China
..............page:83-89
Spatial and temporal variation in lower layer cloud properties over mountains based on CERES data
QIU Xue-xing~1;ZHANG Ping~2;CHEN Yong-hang~2;ZHANG Guo-qing~3;CUI Cai-xia~4; WU Zhi-ting~2;ZHANG Dong~2;GUI Li-na~2 1.Anhui Meteorological Observatory;Hefei 230031;China 2.College of Environmental Science and Engineering;Donghua University;Shanghai 201620;China 3.Qinghai Meteorological Bureau;Xining 810001;China 4.Institute of Desert Meteorology;China Meteorological Administration;Urumqi 830002;China
QIU Xue-xing~1;ZHANG Ping~2;CHEN Yong-hang~2;ZHANG Guo-qing~3;CUI Cai-xia~4; WU Zhi-ting~2;ZHANG Dong~2;GUI Li-na~2 1.Anhui Meteorological Observatory;Hefei 230031;China 2.College of Environmental Science and Engineering;Donghua University;Shanghai 201620;China 3.Qinghai Meteorological Bureau;Xining 810001;China 4.Institute of Desert Meteorology;China Meteorological Administration;Urumqi 830002;China
..............page:46-51
A splitting mean curvature-based model for color image denoising
SUN Li School of Mathematics and Statistics;Lanzhou University;Lanzhou 730000;China
SUN Li School of Mathematics and Statistics;Lanzhou University;Lanzhou 730000;China
..............page:128-132
Visibility forecast in Beijing through artificial neural network based on hierarchical classification method
LI Pei~;WANG Shi-gong~1;SHANG Ke-zheng~1;LI Bang-dong~1; ZHU Hai-feng~1;ZENG Shu-ling~1;HAO Tian-yi~1 1.Key Laboratory for Arid Climate Change and Reducing Disaster of Gansu;College of Atmospheric Sciences; Lanzhou University;Lanzhou 730000;China 2.58 Unit;93534 Troop;People’s Liberation Army of China;Beijing 101212;China
LI Pei~;WANG Shi-gong~1;SHANG Ke-zheng~1;LI Bang-dong~1; ZHU Hai-feng~1;ZENG Shu-ling~1;HAO Tian-yi~1 1.Key Laboratory for Arid Climate Change and Reducing Disaster of Gansu;College of Atmospheric Sciences; Lanzhou University;Lanzhou 730000;China 2.58 Unit;93534 Troop;People’s Liberation Army of China;Beijing 101212;China
..............page:52-57
Molecular cloning and expression analysis of a novel MAP kinase gene BnMPK6 in Brassica napus
WANG Juan~1;ZHANG Teng-guo~1;ZHANG Yan~1;WANG Ning~1;WANG Yuan-yuan~1; SUN Wan-cang~2;CHANG Yan~1;CHEN Qiong-qiong~1 1.School of Life Sciences;Northwest Normal University;Lanzhou 730070;China 2.College of Agronomy;Gansu Agricultural University;Lanzhou 730070;China
WANG Juan~1;ZHANG Teng-guo~1;ZHANG Yan~1;WANG Ning~1;WANG Yuan-yuan~1; SUN Wan-cang~2;CHANG Yan~1;CHEN Qiong-qiong~1 1.School of Life Sciences;Northwest Normal University;Lanzhou 730070;China 2.College of Agronomy;Gansu Agricultural University;Lanzhou 730070;China
..............page:64-69
Mapping of the north-south demarcation zone in China based on GIS
ZHANG Jian~1;LIU Xiao-ni~2;TAN Zhong-hou~3;CHEN Quan-gong~3 1.School of Geography and Environment Sciences;Northwest Normal University;Lanzhou 730070;China 2.Pratacultural College;Gansu Agricultural University;Lanzhou 730070;China 3.School of Pastoral Agriculture Science and Technology;Lanzhou University;Lanzhou 730020;China
ZHANG Jian~1;LIU Xiao-ni~2;TAN Zhong-hou~3;CHEN Quan-gong~3 1.School of Geography and Environment Sciences;Northwest Normal University;Lanzhou 730070;China 2.Pratacultural College;Gansu Agricultural University;Lanzhou 730070;China 3.School of Pastoral Agriculture Science and Technology;Lanzhou University;Lanzhou 730020;China
..............page:28-33
Cyclic spectrum analysis of BPSK under a non-Guassian model
HE Ji-ai;PEI Cheng-quan;PU Yang-yang School of Computer and Communication;Lanzhou University of Technology;Lanzhou 730000;China
HE Ji-ai;PEI Cheng-quan;PU Yang-yang School of Computer and Communication;Lanzhou University of Technology;Lanzhou 730000;China
..............page:133-138
Existence of the maximal weak solution for a class of singular parabolic equations
XIA Li~1;LI Jing-na~2;YAO Zheng-an~3 1.College of Mathematics and Computational Science;Shenzhen University;Shenzhen 518060;China 2.Department of Mathematics;Jinan University;Guangzhou 510632;China 3.School of Mathematics and Computational Science;Sun-Yat Sen University;Guangzhou 510275;China
XIA Li~1;LI Jing-na~2;YAO Zheng-an~3 1.College of Mathematics and Computational Science;Shenzhen University;Shenzhen 518060;China 2.Department of Mathematics;Jinan University;Guangzhou 510632;China 3.School of Mathematics and Computational Science;Sun-Yat Sen University;Guangzhou 510275;China
..............page:99-102
Distribution,enrichment and migration characteristics of heavy metals in rape under Cd/Pb stress
WANG Ning;NAN Zhong-ren;WANG Sheng-li;WU Wen-fei;ZHOU Ting; LI Cheng-cheng;LI Ping;JIN Cheng;LUO Huan-zhang;XUE Su-yin School of Resource and Environment Sciences;Lanzhou University;Lanzhou 730000;China
WANG Ning;NAN Zhong-ren;WANG Sheng-li;WU Wen-fei;ZHOU Ting; LI Cheng-cheng;LI Ping;JIN Cheng;LUO Huan-zhang;XUE Su-yin School of Resource and Environment Sciences;Lanzhou University;Lanzhou 730000;China
..............page:18-22
Geometric inequality for metric addition in the spherical space
YANG Shi-Guo~;YU Jing~1;WANG Wen~1 1.Department of Mathematics;Teachers Educational Research Center;Hefei Normal University; Hefei 230061;China 2.Anhui Xinhua University;Hefei 230088;China
YANG Shi-Guo~;YU Jing~1;WANG Wen~1 1.Department of Mathematics;Teachers Educational Research Center;Hefei Normal University; Hefei 230061;China 2.Anhui Xinhua University;Hefei 230088;China
..............page:96-98
Daily rainfall pattern of Anjiagou catchment in Gansu province
FANG Shu-min~;ZHAO Chuan-yan~2;WU Dong-ping~3;WANG Xiao-ping~3 1.School of Resources and Environmental Sciences;Gansu Agricultural University;Lanzhou 730070;China 2.Key Laboratory of Arid and Grassland Agroecology with the Ministry of Education;Lanzhou University; Lanzhou 730000;China 3.Institute of Soil and Water Conservation of Dingxi City of Gansu Province;Dingxi 743000;Gansu;China
FANG Shu-min~;ZHAO Chuan-yan~2;WU Dong-ping~3;WANG Xiao-ping~3 1.School of Resources and Environmental Sciences;Gansu Agricultural University;Lanzhou 730070;China 2.Key Laboratory of Arid and Grassland Agroecology with the Ministry of Education;Lanzhou University; Lanzhou 730000;China 3.Institute of Soil and Water Conservation of Dingxi City of Gansu Province;Dingxi 743000;Gansu;China
..............page:14-17
Test on triaxial shear properties of saturated undisturbed Q2 loess in deep-buried tunnel
JIANG Yao;CHEN Wen-wu;SUN Guan-ping;LIU Xiao-wei;ZHANG Fan-yu Key Laboratory of Mechanics on Western Disaster and Environment with the Ministry of Education;School of Civil Engineering and Mechanics;Lanzhou University;Lanzhou 730000;China
JIANG Yao;CHEN Wen-wu;SUN Guan-ping;LIU Xiao-wei;ZHANG Fan-yu Key Laboratory of Mechanics on Western Disaster and Environment with the Ministry of Education;School of Civil Engineering and Mechanics;Lanzhou University;Lanzhou 730000;China
..............page:23-27,33