Journal of Northwest Normal University(Natural Science) 2007 Issue 3 xi bei shi fan da xue xue bao : zi ran ke xue ban zheng gao jian ze

xi bei shi fan da xue xue bao : zi ran ke xue ban zheng gao jian ze

..............page:封2

ping mian ji he de san da jing dian wen ti

..............page:26

Research on the humanization development of new volleyball item in university teaching
YU Fei;CHENG Bin

..............page:115-117

Determination of hydroxyl radical in glow discharge plasma by Fe(phen)2+3 spectrophotometry
FU Yan;WANG Ai-xiang;MA Dong-ping;LI Yan;WU Jian-lin;GUO Xiao;GAO Jin-zhang

..............page:49-52

The relationship between the superconductivity of doping MgB2 and the number of average valence electrons
LI Yan-wei;SUN Ai-min;ZHU Hai-bin;CHEN Tuan-jie;AI De-zhen;ZHANG Tao;WANG Shun-qing;HUANG Guo-hai

..............page:46-48

The instability of low frequency electrostatic waves in a collisional magnetized dusty plasmas with adiabatic dust charging
WEI Nan-xia;XUE Ju-kui

..............page:40-45

A new method for finding breather solution of mKdV equation
PANG Cheng-qun;JIA Duo-jie;HUANG Lei

..............page:37-39,48

The application of the extended mapping method of the Riccati equation in the nonlinear simultaneous Schr(o)dinger equation
WU Xiao-hong

..............page:34-36

New periodic wave solutions, localized excitations and their interaction for (2+1)-dimensional generalized Nizhnik-Novikov-Veselov equation
DOU Fu-quan;SUN Jia-nan;HUANG Lei;DUAN Wen-shan;L(U) Ke-pu

..............page:27-33

A generalized circuit wiring problem and its algorithms
ZHAO Xue-feng

..............page:22-26

Edge chromatic number of graph-semigroup
SHI Hai-zhong;WANG Chang-long

..............page:19-21

Tenacity of the torus Pn×Cm
MA Jie-liang;WANG Yu-jue;LI Xin-li

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

Solvability of p-Laplacian two-point boundary value problems with obstruction band
FAN Hong-xia

..............page:12-14

Existence and uniqueness of periodic solutions for a full nonlinear second-order system
ZHOU Tong-fan

..............page:9-11

Asymptotic behavior of positive solutions of Logistic equations with nonlocal boundary value conditions
JIAO Yu-juan

..............page:6-8

Boundedness of the high order commutators with Besov functions on the non-homogeneous spaces
CAO Wei;TAO Shuang-ping

..............page:1-5

The development current situation and the tendency analysis of Chinese sitting-volleyball
SUN Jie;LIU Mao-chang;WAN Zhong-na;XU Ji-wei

..............page:112-114

The development of researching on arginine supplement and exercise ability
XIONG Zheng-ying;LI Run-hong

..............page:107-111

Observation and analysis of microclimate in college student dormitory in Spring and Summer in Xi'an City
LI Huan-jiao;DONG Jie;DING Jin-mei;DONG Hua-ying

..............page:102-106

Quantitative research on the relationship between urbanization and the water for living in northwest China——Case study of Lanzhou City
DANG Guo-feng;ZHAO Jun;YU Teng-fei

..............page:97-101

Research on regional spatial differentiation and reconstruction of Mid-Shaanxi Province urban agglomeration region
QIAN Hui;YAO Xiu-li

..............page:92-96,106

A GIS-based measurement for urban hinterland area in Gansu Province
PAN Jing-hu;DONG Xiao-feng;YU Teng-fei;HOU Wen

..............page:85-91

Study on phenotypic diversity of natural populations of Hippophae rhamnoides subsp.sinensis in Shanxi Province
WU Qiong;SUN Kun;ZHANG Hui;CHEN Wen;SU Xue;CHEN Xue-lin

..............page:78-84

The effect of ultrasonic wave on Angelica sineasia(Oliv.) Diels seeds vitality and germination
LI Gang;WANG Nai-liang;LUO Niang-jiao;MA Rui-jun

..............page:75-77,84

The response of growth and photosynthesis in Chlamydomonas reinhardtii to nitrobenzene
DU Qing-cai;ZHANG De-lu;WANG Gao-hong;LIU Yong-ding;HU Chun-xiang

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

Study on allelopathy of several common weeds on Ligularia sagitta
ZHANG Hong;MA Rui-jun;LI Gang

..............page:66-70

Studies on chemical constituents from Patrinia heterophylla Bunge. and their cytotoxicity in vitro
DING Lan;XU Fu-chun;WANG Han;OU Qiao-ming

..............page:62-65

Electrochemical preparation of PPY/PSF composite films and its electrochemical properties
REN Li-jun;WANG Yan-peng;FENG Xiao-juan;SHI Jun;MO Li-ping;HU Zhong-ai

..............page:57-61

Determination of hydroxyl radical produced by glow discharge plasma with salicylic acid trapping
WU Jian-lin;YUAN Li;MAO Xue-feng;FU Yan;GAO Jin-zhang

..............page:53-56