Journal of Northwest Normal University(Natural Science) 2010 Issue 6 Existence of multipe solutions for a class of boundary value problem of second order difference equation

Existence of multipe solutions for a class of boundary value problem of second order difference equation
ZHANG Guo-dong;SUN Hong-rui

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

Existence of nodal solutions for a second-order differential system
HAN Xiao-ling;WANG Ting;GAO Hong-liang

..............page:7-10

Another congruence decomposition on N(2,2,0) algebras
LI Xu-dong;SONG Xue-mei

..............page:23-25,29

Soliton solutions,periodic solitary and quasi-periodic wave solutions for a nonlinear vibrating string equation
WANG Yuan;XU Gui-qiong

..............page:30-36

The land carrying capacity based on man-grain relationship——A case study of Gannan Tibetan Autonomous Prefecture
ZHAO Xue-yan;LIU Shuang;LI Wei

..............page:100-103

Positive solutions for second order nonlinear discrete periodic boundary value problems
MA Hui-li;HU Chun-ping

..............page:1-6,10

A study on the temporal and spatial characteristics of shopping behavior in large cities of developing regions——A case study of Shangqiu City
LI Xue-xin;HE Yu-lan

..............page:104-110

Study on development of modern logistics industry in Tanggu District based on low carbon economy
CHEN Huai-lu;KOU Ming-zhe;RONG Hui-fang;PANG Guo-jin

..............page:111-115

Stability of two-component degenerate Fermi gases with attractive interactions in an anharmonic trap
XUE Ju-kui;MA Yu-ting

..............page:26-29

Autotoxicity of Codonopsis pilosula
ZHAO Qing-fang;CHEN Jian;GUO Peng-hui;LI Qiao-xia;ZHOU Zi-juan

..............page:75-78,89

Research on random aggregation of urban system in Wudi County from the perspective of fractal theory
GAO Xiang;SONG Xiang-kui

..............page:90-93,99

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

..............page:封4

Effect of the anodized alumina templates treated with phosphoric acid on the morphology of Ag nanowires
KONG Chao;HAN Yan-xia

..............page:55-57

Histological structure and expression of EGF,Bax and Bcl-2 protein,iNOS in the testis and epididymis of Cygnus cygnus
YU Shi-yuan;XIAO Shi-nan;ZUO Wen-tao;WANG Yuan-chun;LI Li

..............page:83-89

Admissibility of estimation for parameter of a general class of distributions under entropy loss function
REN Hai-ping

..............page:19-22

Study of solid-liquid extraction of zinc with di(2-ethylhexyl)phosphoric acid into molten paraffin wax
PENG Bo;LI Xiao-mei;WANG Jin-wen;ZHANG Zhang;ZHA Fei;DU Xin-zhen

..............page:46-50,61

Adaptive ant colony optimization algorithm based on optimization maturity
GUO Xiao-fang

..............page:37-41

Chameleon algorithm based on dynamic nearest neighbors selection model
ZHAO Xue-feng;YANG Hai-bin;WANG Xiu-hua

..............page:42-45

The research on agrobacterium-mediated transformation of AtPCS1 into Medicago sativa L
WANG Ming-gang;LUO Huan-tao;LI Pan-pan

..............page:79-82,89

Preparation and performance of the layer of Pt/C/polysulfone electrcatalyst
YANG Yu-ying;ZHANG Zi-yu;WANG Huan-wen;CHEN Yan-li;CHANG Yan-qing;HU Zhong-ai

..............page:58-61

Preparation and properties of polyethylene glycol/acrylic acid/acrylamide hydrogel
YU Jie;LI Jing;LI Li-xia;MA Hong-mei

..............page:62-66,70

Research on the relationship between industrial structure and regional economic growth——Take Gansu Province as the example
DONG Xiao-feng;YIN Ya;MENG Jie;YU Lin-rong

..............page:94-99

Pseudo-parallel space-like submanifolds of pseudo-Riemannian space forms
LIU Jian-cheng;WANG Li-li

..............page:15-18

Synthesis and characterization of phenyl surface modified MSU-x mesoporous sieve
DU Xin-zhen;LI Zhi-ying;RAO Hong-hong

..............page:51-54

An analysis on agronomic traits and nutritional value of main potato cultivars planted in Dingxi
CHEN Xue-lin;WANG Yan-biao;MA Hu-sheng;ZHANG Ji;MA Xiao

..............page:71-74

Preparation of N-(pyrazin-2-amino)-N′-benzoyl thiourea and their biological activities
FU Ying;XIAO Cai-qin;ZHANG Huai-yuan;HU Xue-mei;HUANG Dan-feng

..............page:67-70