Journal of Northeast Normal University(Natural Science Edition) 2000 Issue 3 Nonnegative solution for a class of semilinear population diffusion equations

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Journal of Northeast Normal University(Natural Science Edition)
1000-1832
2000 Issue 3

Nonnegative solution for a class of semilinear population diffusion equations
CHEN Ren-zhao;LI Jian-quan;ZHANG Dan-song;ZHANG Bang-ji

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

Hopf bifurcation analysis of the chemostat models
LI Xiao-yue;BAI Ling;YANG Fan;HUANG Qi-chang

..............page:6-12

On the mixed model and the relations between the estimators under its reduced models
QIU Hong-bing;ZHANG Bao-xue

..............page:13-17

zhong ri liang guo da xue sheng ti ge ji shen ti su zhi fa zhan zhuang kuang de dui bi yan jiu
li gang ; zhang shu guang ; zhou dian xue

..............page:122-124

New record of breeding bird in Jilin province - Pallas' Sand Grous
SONG Yu-jun;HE Chun-guang;SUN Xiao-wei

..............page:120-121

The user modelling and the building methods for the intelligent user interface agents
SUN Tie-li;DENG An-sheng

..............page:115-119

A nonrevision method for reasoning with inconsistency in the first order logic
GUAN Wei-zhou;DENG An-sheng

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

Epistemic process and its limit based on nonrevision approach
ZHANG Li-ying;DENG An-sheng

..............page:108-111

Generalized semi-lock resolution in boolean operator fuzzy logic
DNEG An-sheng;GUAN Wei-zhou

..............page:104-107

Formal boolean operator proposional logic
DENG An-sheng;SUN Tie-li

..............page:99-103

Study on comparing the environmental education between the developed countries and developing countries
CHENG Weng;ZENG Bao-qiang

..............page:94-98

Value concept and nature concept of region environmental planning
CAO Yong-hong;SHANG Jin-cheng

..............page:89-93

Study on environmental capacity of water in Hunjiang river in Jilin province and its utilization in total amount control.
TIAN Wei;YU Mu-qing;ZHU Xian-mei;WANG Hong

..............page:84-88

Development of aqueous two- phase system technique
GUO Li-ping;FU Dong-mei;ZHANG Zhuo-yong;LIU Si-dong

..............page:34-40

Simulated spectrophotometric operation by Visual Basic programming
LIU Si-dong;ZHANG Zhuo-yong;JIAO Ying;GUO Li-ping

..............page:30-33

Design and experimental result of a fifth- order autonomous circuit with hyperchaos
CHEN Ju-fang;YUE Li-juan;PENG Jian-hua

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

Question- base design and paper- generating system
JIANG Hua;HU Xin;LI Ming-ge

..............page:23-25

Global convergence of the preconvex part of Non- Quasi- Newton's family with a class of inexact linesearches
CHEN Lan-ping

..............page:18-22

An urbanization level formula based on Beckmann's model and its theoretical inferences
CHEN Yan-guang;LIU Ji-sheng

..............page:78-83

Theory of keystone species in ecosystems:new idea, new mechanism, new approach
SUN Gang;SHENG Lian-xi

..............page:73-77

Actin is a constituent of polytene chromosomes of Drosophila virilis
HE Jie;LIANG Xiu-mei;WEI Min;TIAN Mei-hong;ZHANG Feng

..............page:69-72

Effect of insulin and glucagon on unit discharge of neurons in rat medial habenular nucleus
JIN Yu-xiang;CHEN Jia-feng;HU Bo;ZHANG Li-young;HAN Li-chun;WANG Shao

..............page:65-68

The purification and pathogenic experiment of baculovirus of Paneus chinensis explosive epidemic disease
WANG Wei;FENG Jiang;WANG Zhen-tang;ZHANG Feng

..............page:61-64

Simple identification and incubation method of Candida albicans
LIU Chun-yan;ZHANG Li;XIA Hong-mei;CHEN Shan;LU Da-ning;WANG Li

..............page:58-60

Effect of different clipping number on Leymus chinensis grassland in the Songnen plain of China.
LI Hong;GUO Ji-xun;XU Ai-chun;XUE Feng-gang;LI Meng

..............page:53-57

Effects of saline - alkaline stress on the contents of nitrogen and several organisms of Aneurolepidium chinense
YAN Hong;SHI De-cheng;YIN Shang-jun;ZHAO Wei

..............page:47-52

Effects of inositol on chilling resistance of corn seedlings
YOU Ji-hong;YANG Wen-jie;LI Xiao-ling

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

Research on genus Asterocapsa from Northeast of China
XIAO Hong-xing;MA Xiu-jie

..............page:41-43