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Journal of Northeast Normal University(Natural Science Edition)
Journal of Northeast Normal University(Natural Science Edition)
FQ: quarterly
AD of Publication: China
Lanuage: English
ISSN: 1000-1832
CN: 22-1123/N
YP: 1951
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Journal of Northeast Normal University(Natural Science Edition)
1999 -04
Catalog
Lyapunov stabilty of solution for a nonlinear time-varying population system with age-depence and spatial diffusion
CHEN Ren-zhao; ZHANG Dan-song
Optimal boundary control for time-varying population systems
CAO Chun-ling; CHEN Ren-zhao
Topological classification of Lienard systems without closed orbits(Ⅱ_2)
WANG Ke
Admissibility of inhomogeneous linear estimator with respect to a restricted parameter set
WANG Jian-fei; LU Chang-yu
Discrimination in trade and economy
BU Zhao-hong; WANG Ke; WU Shi-quan
The physics origin on the multifractal and fractal noise information
AO Li-bu;Dong Hui
The development of ion source neutron tube with α particle detector
LI Wen-jie; LIU Jun-ping;DONG Ai-ping
Research on the catalysis characteristics of CSL in reversed micelle system
ZHANG Wei; YAN Yun; LIU Jing-lin;CHU Ying; WU Zi-sheng
Development of solid phase microextraction technique
GUO Li-ping; LUO Qan; ZHAN Zhuo-yong; ZHANG Hon-ye; LIU Si-dong
Preliminary studies on the addition orientation of 2-dialkylthiomethylene-5, 5-dimethyl-1, 3-cyclohexadione with Grignard reagents
FANG Qun-xin; NING Bo; HU Yu-lan; ZHAO Bao-zhong; LIU Qun
Advances on chemistry of α-oxo ketenedithioacetal(Ⅳ)
WANG Mang;LIU Qun;ZHAO Mei-xin;LI Jian-xin
The effect of forage on growth and development during tadpole period in Rana temporaria chensinensis
HUO Hong-liang; BAO Pei-hua; LI Dong-feng
Studies on the bottom fauna and biomass in Nishina Sanko
ZHAO Jiang; LI Xia
Atmosphere chang affected the leaves' structure of the Glycine L.
ZHANG Tao; ZHANG Chang-zhong; ZHU Jun-yi; SONG Jin-zhi
The effect on growth of sunflower to mixed salts with various natural and alkaline
SHENG Yan-min; SHI De-cheng;XAO Hong-xing;XU Yue
Study on callus cryopreservation of Freesia refracta Klatt
YANG Wen; LIU Chun-yan; BU Xiu-ling; LUAN Heng-chun; WANG Li
The study on the urban hazard information system of Jilin province
ZHANG Hong-yan; LIU Xiang-nan; HUANG Fang;JJN Lun
The report on the investigation of students' sexual psychology
YU Wei; SUN Fu-zhen
Changes of community production and it's space structure following grassland burning in Hulunbeier steppe
ZHOU Dao-wei; LI Ya-qin;SUN Gang
Changes in plant height growth, moisture and chlorophyll content following a grassland burning
ZHOU Dao-wei;JIANG Shi-cheng; HU Yong-jun
Nutrient loss of plants following grassland burning
LI Xiao-bo; ZHOU Dao-wei; SUN Gang
Response of nutrient and caloric value in grassland plant following burning
ZHOU Dao-wei; SUN Gang; WANG Ping
Studies on the changing pattern of Aneurolepidium chinense fuel moisture
GUO Ping; ZHOU Dao-wei SUN Gang; TIAN Hong-yan
Analysis on fire in Hulunbeier grassland
YUE Xiu-quan; ZHOU Dao-wei; JIANG Shi-cheng
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