Journal of Natural Science of Heilongjiang University 2002 Issue 2 Studies on the application of microecological fertilizer in hulunber

Studies on the application of microecological fertilizer in hulunber
liang xiu mei ; huang xue wen ; rong ke

..............page:109-111

The inhibition effect of soluble chitosan on cellulase
wang bai chen ; liu bo

..............page:106-108

Notes of two matrix inequalities
lin meng

..............page:18-20

A branch and bound algorithm for solving maximizing a concave function over weakly-efficient
du ting song ; zhang ming wang ; wang jun ling

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

Whitney's critical sets on the generalized Sierpinski rug
xu yuan fen ; dai zhen xiang ; guo zheng

..............page:11-13

Regularity properties of Runge- Kutta - Nystrom for second-order differential equations
zou jin ying ; ding xiao hua ; jin cheng ri

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

A numerical algorithm for the inversion of impedance and wavelet
zuo shou yan ; han bo

..............page:5-6,10

Generalization of a Diophantine equation in difference sets
dong xiao lei ; cao zhen fu

..............page:1-4

Preparation and properties of Polyacrylamide(PAM) modified by organic-montmorillonite
lu zuo ; li ze wen ; wang cheng ; chen jiu shun

..............page:103-105

Synthesis of 2,6-dimethylnaphthalene by transmethylation of β-methylnaphthalene
wu wei ; liu yi fu ; bai xue feng

..............page:99-102

Analysis of propisochlor by gas chromatography
sun zhi zhong ; ma dong sheng ; hou yan jun ; chu wen yi ; yang pei xia ; guan xu

..............page:97-98,102

Preparation of LiMn2O4 as a cathode in rechargeable lithium cells
zhu zhi biao ; zhang hong zhi ; yuan fu long ; zhu yu jun ; xu dong mei

..............page:94-96

Theoretical study of two aniline double schiff's bases ligand nonlinear optical property
che wen shi ; zuo bin bin ; li xiao feng

..............page:91-93,96

Synthesis of the esters of α-fronic acrylic acid as flavors
liu li guo ; yang jing lin

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

Study on interfacial structure of binary transition metal oxides(Ⅰ)--The measurements of both side dispersed threshold values by XRD and BET techniques
wang zhi min ; li yong zhan ; han wei ping ; liu ran

..............page:81-86

The proof of cancelling the direct field under the system of the column-shaped multiply medium
liang fa ku

..............page:77-80

Recurrence formula for radial matrix element of two-dimen-siowal isotropic harmonic oscillator
ma zhi min ; ma ai qun

..............page:73-76

Study on multiplayer medium film of strainless steel pressure sensor
mu chang sheng ; zhang hui jun ; wen dian zhong

..............page:70-72

The study and implementation of telemetry and telecontrol system based on SS
zhong wei ; wang zuo

..............page:66-69

Quantized theoretical model in interaction of multi-charged ions with electrons
wang li guang

..............page:62-65,69

Implement parallel and distributed computing by DCOM
yu ling ; li jin bao ; zhang shu juan

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

A compression-based attribute partition storage structure and OLAP queries
wu xue mei ; gao hong ; li jian zhong ; sun hui ming

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

Database system: a quickly changed research area--Review and exploration of database techniques
li jian zhong

..............page:43-52

An LIM approach to robust H∞ controller design for a class of nonlinear uncertain systems state and input delays
wang zuo zuo ; wang de jin ; gong bing

..............page:40-42,61

Reduced-order Wiener state estimators for descriptor system with Y-observable canonical form
qi guo yuan ; deng zi li

..............page:36-39

The improving of weighted general predicative control algorithm
zhuang pei dong ; shen yong liang ; zhang lian zhu ; wang hai xiao

..............page:33-35,39

Research on the coordinate developmental models of electronic commerce large-scale systems
tang bing yong ; liang xiao zuo

..............page:29-32

The study of the model of customer life-time value
wang su fen ; tang bing yong

..............page:24-28

A research on the model for assessing the outside edge of the straight cylindrical ball-head milling cutter
li bin ; tang yu yong ; lin shen wang

..............page:21-23,28