Journal of Natural Science of Heilongjiang University 2007 Issue 2 Cycles in 4 connected planar graphs

Cycles in 4 connected planar graphs
WANG Xin;CHE Xiang-kai

..............page:270-274

Ultrasmooth Gd3Ga5O12( 111 ) substrates by high-temperature annealing
XU Zhen-feng

..............page:275-277,280

Von- Neumann regularity of similar N- rings
PAN Hai-jing;YANG Xin-song;CHEN Guang-hai

..............page:278-280

Study on adsorption ability of chitosan on potassium permanganate
REN Yu-lan

..............page:267-269,274

Mild periodic solution of evolution inclusion
SU Zai-bin

..............page:263-266

On some properties of quasi -linear operator
GAI Gong-qi

..............page:261-262,266

Oscillation criteria for nonlinear second order neutral differential equations with distributed delays
WANG Rui-hang;REN Hong-shan;YU Yuan-hong

..............page:257-260

Homotopy method for multi -objective programming problems
YAO Guang-ming;SONG Wen

..............page:253-256,260

Reliability analysis of a two- dissimilar- unit paralleled redundant systems with repair priority
DONG Bing;TANG Ying-hui

..............page:249-252

The derivation algebras of Lie algebras T( 3 ) over a field F of characterisitic p = 3
XU Qiu-li;ZHANG Yong-zheng

..............page:245-248

Study on the optical nonlinearity of material using femtosecond Z -scan technique
HAN Ya-ping;CHEN Bing-cai;YE Hong-an;YANG Yan-qiang;WU Wen-zhi;CAO Yan

..............page:219-222,227

Cloning and sequence analysis of laccase -coding gene fragments from ryegrass (Lolium perenne )
LU Yun-cai;Torben ASP;LI Yu;WANG Tian-yu;Thomas Lübberstedt

..............page:214-218

Isolation and selection of two strains of bacteria producing cellulase
YAN Hong;YANG Qian;WANG Xi-guo

..............page:211-213,218

Research on the algorithm of a corrected quantum full adder
GUO Liang;WANG Li-guang;TERENCE K S W;TSUKADA M

..............page:207-210

A drive power for 980nm pump laser module
LI Ruo-ming;LIU Sheng-chun;YU You-long;LIU Hao;MENG Fan-bin;HU Liang

..............page:203-206

Ozonation catalyzed by hydrogen peroxide and ceramic honeycomb for the removal of trace nitrobenzene in aqueous solution
YU Ying-hui;WANG Qi;SUN Zhi-zhong;GAO Jin-sheng;MA Jun

..............page:199-202

Maps on spaces of symmetric matrices preserving idempotence
SHENG Yu-qiu;XING Ze-jing

..............page:195-198

Delay- dependent Robust stabilization of uncertain neutral systems with discrete and distributed delays
LI Ming;HU Guang-da

..............page:190-194

Determination of trace 2,4 - dinitrophenol with electrochemical method and the reaction mechanism research
WANG Xiao-gang;FAN Ya-juan;ZHANG Xi-sheng;WU Qing-sheng;DING Ya-ping

..............page:164-167

Study on synthesis and properties of poly (L -lactide) -poly (ethylene glycol) block copolymers
ZHANG Zhen-yu;WU Xiao-fu;ZHANG Yan-hong;FU Li-ying

..............page:148-154

The effect of injection molding process parameters on the degree of crystallinity of polypropylene
XIE Gang;TANG Rui-min;ZHANG Xin;FAN Xue-lei;LI Ze-wen

..............page:155-158

The preparation of modified VER and its influence on PU/VER IPN performance
QIN Chuan-Ii;JIANG Hai-jian;TAN Qiang;ZHAO Shu-fang;BAI Xu-duo

..............page:159-163,167

hei long jiang da xue zhong qing nian xue zhe jie shao

..............page:封2

hei long jiang da xue zi ran ke xue xue bao zheng gao jian ze

..............page:封3

Raman spectroscopy characterization and the photocatalytic activity of different phase content of TiO2 nanoparticles
LI Shu-dan;JING Li-qiang;FU Hong-gang

..............page:241-244

Vector- valued pseudo almost periodic functions in metric spaces
DU Yah-fei;ZHANG Chuan-yi

..............page:237-240

New numerical method on the inverse black body radiation problem
YANG Li-hong;GUI Ming-gen

..............page:231-236

The system model of knowledge collaboration for enterprise cluster
LI Dan;QIAN Shi-qing;TANG Bing-yong

..............page:228-230,236

GMS- stability of the composite Euler method for a linear stochastic differential delay equation
ZHOU Li-qun;WANG Wei

..............page:223-227

Study on the treatment of nitrobenzene pharmaceutical wastewater by improved Fe -C inner electrolytic process
LI Xin;QI Pei-shi

..............page:185-189

Multiplication of Moiré fringe using spatial light modulator
WANG Qiang;WANG Biao;MA De-cai;XIE Wen-guang

..............page:181-184

An absolute convergence theorem on evaluation of a type of operator sequence
WANG Fu-bin;LI Rong-lu;ZHONG Shui-hui

..............page:178-180,184

Hα -stability of modified Runge- Kutta methods with variable stepsize for neutral pantograph equation
MA Shu-fang;XU Yang;LIU Ming-zhu

..............page:173-177

Compensation time -varying delays in networked control systems: an improved LMI approach
XIA Hong-wei;WANG Chang-hong;MA Guang-cheng

..............page:168-172,177

Investigations on the structure and performance of Fe doped Nano- ZnO desulfurizer used at ambient temperature
ZHANG Jie;LI Fen;YAN Bo;JIANG Wei;SHAO Chun-hong;JIANG An-xi;ZHANG Feng-yu

..............page:141-144

A note on additive preserver of idempotence
CAO Chong-guang;YAO Hong-mei

..............page:145-147