Journal of Anhui University of Science and Technology(Natural Science) 2011 Issue 4 On the Nullity of Digraphs of Trees

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Journal of Anhui University of Science and Technology(Natural Science)
1672-1098
2011 Issue 4

On the Nullity of Digraphs of Trees
SUN Yan-ju;YIN Zhi-xiang;DONG Chao

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

Existence and Uniqueness of Perodic Solution for One Class of Third- order Differental Equation with Delays
SHEN Qin-rui;ZHOU Zong-fu

..............page:4-8

Performance of Sunlight Catalytic Degradation of Urban Waste water of Carried Co - doped TiO2
XUE Ru-jun;DAI Xin-ying;HUANG Jing

..............page:9-12

Study on Dynamic Mechanic Properties of Modified Gangue Powder Filling SBS
YU Xiu-hua;CHENG Guo-jun;XU Chu-yang

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

Design of Automatic Resistance Tester Based on 51 Single - chip Microprocessor
XU Mei

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

Simulation Analysis of Mine Hoist Compound Control System
LIU Huai-xia

..............page:22-24

Theoretical Study and Finite Element Analysis of Catenary Linear Horn
LIU Ya-hui;FU Zhi-qiang

..............page:25-27,60

Test of Using Waste Drilling Slurry as Grouting Slurry
JANG Yu-song;CHEN Li-hua

..............page:28-32

Study on Friction and Wear Properties of Emulsion- based ZCuPb20Sn5 and ZL108
LUAN Zhen-hui;XING You-ting;WU Xiang-fei

..............page:33-36

Dynamic Correlation Error Modelling of CMM Based on nu -SVM
WU Tian-feng;YANG Hong-tao

..............page:37-40

The Evaluation of abutmentstress on Longwall
YE Li-ping

..............page:41-45

Investigation of Interaction between Titanate Coupling Agent and Ground CaCO3 Surface in Ultrasonic Filed
JIA Ren-guang;WU Xiang-fa;HE Jie

..............page:46-50

Study on Different- source Prediction of Gas Emission in Fully Mechanized Coal Face Based on BP Neural Network
XIAO Jia-ping;DAI Guanglong

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

Comprehensive Control Methods of Gas in Gassy Fully mechanized Longwall with Top Coal Caving
SU Lai-wang

..............page:56-60

The Ascertainment of Limited GPR of Grounding Net During Frequency Short- Circuit
CUI Shao-qing

..............page:61-64,70

Application Study on Gas Extraction Technology by Surface Borehole
XIN Guo-an;ZHANG You-bo;ZHU Hai-jun

..............page:65-70

an hui li gong da xue xue bao ( zi ran ke xue ban ) zheng gao jian ze

..............page:封3