Journal of Beihua University(Natural Science) 2012 Issue 5 Periodic Solution for the Single Species Model with Stage Structures and Diffusion

Periodic Solution for the Single Species Model with Stage Structures and Diffusion
DU Ming-yin;CHENG Jun-xiang

..............page:497-502

Three-Stage Single-Species Model with Harvesting and Cannibalism
SHI Ming-xing;LU Fan

..............page:503-505

A Multi-attribute Decision Method Based on Deviation Degree Variable Weights
WANG Zhi-li;LI De-qing;MENG Ming-qiang

..............page:506-510

Synchronization of Impulsive Coupled Neural Networks with Time-varying Delay and Reaction-Diffusion Terms
QIAN Xue-ming

..............page:511-516

Strongly Semi-G-preinvexity and Duality for Multi-objective Programming
ZHANG De-hui;PENG Zai-yun;LONG Xian-jun

..............page:517-523

GM (1,1, λ) Based on Optimum Method
WANG Min-hui;ZENG Sheng

..............page:524-527

Application of Three-Layer Implicit Difference Scheme on Solution of One Dimensional Diffusion Equation with Constant Coefficient
YANG Yang;LI Chun-guang;JING He-fang;YANG Jun-wei

..............page:528-531

On Plasma Heparin Concentration and Activated Clotting Time during Liver Transplantation
JIA Meng-xing;ZHU Tao;LUO Chao-zhi;LIU Jin

..............page:532-536

Research on the Correlation between Serum Ferritin and Progressive Ischemic Stroke
FAN Zhen-wei;LIU Hui-min

..............page:537-539

Analysis on the Curative Effect of Ganglioside in 28 Cases of Severe Craniocerebral Injury
YU Jian

..............page:540-542

Effect of Supplementary Injection of Remifentan after the Induction of Propofol on Hemodynamics during Pre-Postintubation Period
LU Wei-sheng

..............page:543-545

Clinical Research on the Application of L-Carnitine Combined with EPO for Treatment of Renal Anemia at CKD Stage Ⅱ-Ⅳ
ZHAO Da-jun;LONG Miao

..............page:546-548

Clinical Observation on the Effectiveness of Combined Cetuximab on Advanced Colorectal Cancer
WANG Lin-juan;WU Chun-yan;ZHANG Ping

..............page:549-552

Curative Effect Analysis on the Preventive Chemotherapy for Treatment of Hydatidiform Mole with High Risk Factors to Induce the Malignant Transformation
LIU Jun-ling

..............page:553-556

Clinical Analysis of 15 Cases of Secondary Malignant Transformation in Cryptorchid Testes
LIU Gang;YIN Bo;SONG Yong-sheng

..............page:557-559

Clinical Analysis on the Comparison of Reliability of Results Achieved with UF-100 Automated Urine Sediment analyzer, Ur-300 Dry Chemistry Analyzer and the Conventional Microscope
HUANG A-li;MA Hong-chao;ZHANG Meng;LIU Kai-li

..............page:560-562

Effects of Exercise Therapy on the Social Function and Quality of Life of Patients with Chronic Schizophrenia
JIAN Tian-rong;LUO Cheng-feng;MU Shi-ming

..............page:563-565

Application Analysis of Evidence-based Nursing in the Gynecology Tumor
ZHANG Ying

..............page:566-569

On Effects of Nursing Intervention on the Psychological Status and the Expression of Serum sFas in Patients with Acute Myocardial Infarction
LIU Wei;WANG Ji-hong

..............page:570-572

Study of Flora in Zhangguangcai Mountains
WANG Yue-shan;WANG Li-li;FAN Chun-nan;LI Bing;ZHENG Jin-ping;GUO Zhong-ling

..............page:573-577

Effect of Invasive Animals on Rivers Biodiversity in the Changbai Mountain Nature Reserve
luo yu mei ; pu zheng ji ; wang he ; wang chao ; zuo ya cheng ; zeng fan wei ; luo yu jing ; wang zhuo cong

..............page:578-580

Current Situation of Forest Management Certification in Southern Collective Forest Area
ZHENG De-xiang;KANG Hai-jun;CHEN Ping-liu;LIAO Xiao-li

..............page:581-585

Drought Frequency and Defense Countermeasure of Maize Growth under Atmospheric Precipitation Environment
SUN Pei-liang;YI Xia;LI You-jun;WANG Yun-fang;CAO Dong-hao;WANG Xue-feng;SHANG Yu-rong

..............page:586-589

Protection Countermeasure of Wetland in Bashang Area of Zhangjiakou City
WANG Chao;FU Yun-sheng;BI Jun

..............page:590-594

Sliding Stability Analysis Method of the Roadbed in a Steep Hill
ZHANG Jian;ZHANG Xin;GAO Jin-gui;JIANG Zhao-fang;WANG Yong-cheng;GUO Shu-qing;YU Sheng-wu

..............page:595-597

Design of Brake Energy Recovery System for Electric Vehicle
FAN Jiu-chen;CHU Ya-xu;HE Ming-ming;SUN Xue-mei;LI Hong-zhou;JIA Shuang-lin;WANG Kai-bao

..............page:598-603

Design of the Fully Automatic Six-Wire Synchronous Filling Control System
ZHOU Zhen-xiong;XU Yu-jiao

..............page:604-607

Research on Spectrum Sensing Technology of Cognitive Radio
PANG Na

..............page:608-612

Application of MC56F8037 Digital Signal Controller in the Single-phase Asynchronous Motor SPWM Variable Frequency Speed Regulation
WU Zhen-yu;SHAO Hong-xu;XIA Tian-xiang;ZHANG Ya-li

..............page:613-616

Economic Security Analysis on Peaking Operation of 200 MW Unit Made in China
YANG Xiao-dong

..............page:617-620

bei hua da xue xue bao ( zi ran ke xue ban ) zheng gao jian ze

..............page:封3