Journal of Northwest Normal University(Natural Science) 2011 Issue 3 Optimization research of urban areas space structure based on fractal theory——A case study of Lanzhou and Baiyin urban areas

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Journal of Northwest Normal University(Natural Science)
1001-988X
2011 Issue 3

Optimization research of urban areas space structure based on fractal theory——A case study of Lanzhou and Baiyin urban areas
JIAO Shi-tai;WANG Shi-jin

..............page:103-109

Polymerization of ethylene catalyzed by α-diimine Ni( Ⅱ ) catalyst/diethylaluminium chloride
YUAN Jian-chao;WANG Xue-hu;LIU Yu-feng;MEI Tong-jian

..............page:65-69

The super-hydrophobicity caused by simply immersing sheet metals in alcohol solution of 12-hydroxy stearic acid
YANG Wu;PEI Ben;GUO Hao;WAN Fei;ZHAO Xiu-li;YU Yan

..............page:54-59

xi bei shi fan da xue xue bao :( zi ran ke xue ban ) gao yue

..............page:封4

The analysis of 1D photonic crystal band structure based on the dielectric dispersion fitting
WANG Cheng-wei;LI Jian-feng;WANG Jian;WANG Duo-shu

..............page:27-30

Research on light intensity distribution of photon single-slit and multiple-slit diffraction with quantum theory
CHI Li-xin;YU Hong;WU Xiang-yao;LIU Xiao-jing;WU Yi-heng

..............page:21-26,39

Study on the intensive utilization of commercial land based on function area in Xining City
SONG Cheng-shun;HUANG Li-min;ZHAI Wen-xia;LIU Cheng-wu

..............page:98-102

The effects of wind farm on birds
WANG Ming-zhe;LIU Zhao

..............page:87-91

Kinetic studies on transesterification of biodiesel prepared in ionic liquids
BO Yang;TAO Chun-yuan;DAI Jun

..............page:70-74

Study on the ecological safety evaluation for tourist destination based on the ecological footprint model——A case study of Xianyang City
DU Zhong-chao;LI Zhi-xia

..............page:110-115

Darzens condensation reaction of aromatic aldehydes with α-bromo ketones catalyzed by TMSCl
WANG Jin-xian;WEN Xiao-liu;LI Shun-xi;ZHOU Wen-jun

..............page:60-64

Spatial-temporal change and its driving forces of woodlands in the gully area of Longdong loess plateau over the last 30 years
DONG Xiao-feng;MA Ru-lan;PANG Guo-jin;LI Bo;SONG Xiang

..............page:92-97,109

Stability in a two-prey and one-predator model with diffusion
FU Sheng-mao;HU Rong-rong

..............page:1-4,20

Influence of oxygen partial pressure on the micro-structural and optical properties of Cu-doped ZnO films
MA Shu-yi;SHANG Xiao-rong;MA Li-gang;SU Chang

..............page:15-20

Asessment on sustainable development of Minqin Oasis based on composite evaluation
LI Ding;ZHANG Li;WU Ya-kun

..............page:116-119

Existence of positive solutions of a nonlinear second-order BVP with integral boundary conditions
YANG Chun-feng

..............page:11-14

An improved contextual-based Hopfield neural network for image edge detection
LIU Ming

..............page:40-44

Image clustering based on incremental EM algorithm
JIA Jun-jie;WANG Zhi-he

..............page:45-48

Establish the standardization of SEAP reporter gene system
ZHU Qing;LU Da-ru

..............page:75-79,115

Effects of X-ray on histological structure and activities of antioxidant enzyme in duodenum of filial mice
YU Shi-yuan;ZUO Wen-tao;WANG Yuan-chun

..............page:80-86

A qualitative analysis of a kind of food-predator systemes with harvesting rates
HE De-ming;HE Wan-sheng;XIE Bao-li

..............page:5-10

Determination of L- and D-methionine by using glucose-acetone-Mn( Ⅱ )-KBrO3-H2SO4 oscillating system
GAO Jin-zhang;LIU Yan-jun;ZHANG Xiao-li;LI Ming;YANG Wu

..............page:49-53,64

Research of transducer array directivity based on different array elements
GONG Jian-hui;YAN Bi-ge

..............page:35-39

SH-wave scattering from the two collinear cracks of functionally graded piezoelectric/piezomagnetic composite materials
ZHOU Chun-mei;HAN Hui-li

..............page:31-34