Journal of Northwest Normal University(Natural Science) 1999 Issue 3 ke ji lun wen de xie zuo yu xin xi zi yuan de kai fa li yong

ke ji lun wen de xie zuo yu xin xi zi yuan de kai fa li yong
ling xiao

..............page:74

guan yu wo guo " guo jia chuang xin ti xi "
ling xiao

..............page:33

xi bei shi fan da xue you you 6 ge ji chu ke jiao xue shi yan shi tong guo sheng ji he ge ping gu
ji zuo

..............page:28

Characterization of α-hereditary monoids by injectivity
LIU Zhong-kui

..............page:1-3

kang nie di ke zhou li zhong yang da xue fu wei ning jiao shou ying yao lai xi bei shi da fang wen
ji zuo

..............page:7

The study progress of the elemental periodic table
WANG Jin-xian;XING Zhi-liang

..............page:113-117

Synthesis of anhydrides from acyl chlorides under microwave irradiation
HUANG Dan-feng;WANG Jin-xian;HU Yu-lai

..............page:111-112

A computation of a class of n-order determinants
WANG Xiao-lin

..............page:108-110

Thinking on teaching transformation of algebraic course for national higher teacher education of mathematics
LIU Zhong-kui;YANG Yong-bao;CHENG Hui;CHEN Xiang-en;WANG Xiao-lin

..............page:103-107

Some inspiration of George Polya's heuristic method on Chian's mathematical education reform
DU Jian;XIAO Hong-min

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

Cognition and condition of urban and rural residents physical culture life in Xinjiang
CHEN Qing;LU Ping-sheng

..............page:91-97

Study of the population resource in the poor areas of Gansu Province
ZHAO Xue-yan

..............page:87-90

Study on wild ornamental resources of Viola from Gansu Province in early spring
SUN Kun;YANG Yong-li;WANG Qing-rui;XING Hua

..............page:83-86

Records and descriptions of 29 soil ciliates (Ciliophora:Kinetofragminophorea)in typical zones of China
NING Ying-zhi;SHEN Yun-fen

..............page:75-82

Synthesis,characterization and anti-cancer activity of p-aminoacetophenone thiosemicarbazone complexes of Ni(Ⅱ),Zn(Ⅱ),Co(Ⅲ)
LIU Jian-ning;SU Bi-tao

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

Studies on the volatile constituents of Polygomum aviculare L.
ZHENG Xu-dong;HU Hao-bin;ZHENG Shang-zhen;SU Yue-zeng;SHEN Xu-wei

..............page:68-70

Studies on the volatile constituents of Polygonum viviparum L.
LI Kang-lan;SHEN Xu-wei;ZHENG Shang-zhen;L(U) Jin-shun

..............page:65-67

Studies on the chemical component of essential oils of Elsholtzia stauntonii Benth
ZHENG Shang-zhen;KANG Shu-he;GAO Li-ming;SHEN Xu-wei;L(U) Jin-shun;LIU Hong-yan

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

Color reproduction error and correcting color matrix of chrominance primary and reference white in video camera out of accord with that in picture tube
YANG Xiao-hong

..............page:56-59

Theoretical analysis of beam-foil spectrum for highly ionized Si
FU Yan-biao;DONG Chen-zhong;YUAN Ping;CHEN Guan-ying;ZHANG Shu-dong;WANG You-de;YANG Zhi-hu

..............page:51-55

The properties of closure of the parallel connection system about element NBUC
ZHANG Li-yuan

..............page:47-50

A random model of prediction on stock market
YAN Rong-fang

..............page:44-46

The primitive functions of B-integrable functions
YE Guo-ju;AN Tian-qing

..............page:40-43

The Riemannian type extension of Aumann integrals for the interval-valued functions
GONG Zeng-tai;CHEN De-gang

..............page:34-39

Generalized Abel means on Triebel-Lizorkin spaces
TAO Shuang-ping

..............page:29-33

Positive solutions for some singular nonlinear boundary value problems
ZHANG Shu-qin

..............page:22-28

Multiple positive solutions for (k,n-k) conjugate boundary value problems
BAI Ding-yong;HUANG You-liang

..............page:18-21

Nontrivial solution and dead core problem of nonlinear ordinary differential equations
LI Bang-qing;MA Yu-lan;WANG Wan-xiong

..............page:14-17

The existence of solutions for periodic boundary value problems of a class of nonlinear integro-differential equations
LI Yong-xiang

..............page:8-13

End-regularity of the join of two graphs
CHEN Xiang-en

..............page:4-7