Journal of Lanzhou University（Natural Sciences） 2002 Issue 2 The effects of an A-typed nylon fence on Aeolian sand prevention

The effects of an A-typed nylon fence on Aeolian sand prevention
qu jian jun ; ling yu quan ; liu xian wan ; lei jia qiang ; li fang ; yu zhi yong

..............page:171-176

Diagnostic analysis of the apparent vorticity source and vorticity change-rate of the developing mesoscale system during the 98.7 heavy rainfall
wen li juan ; cheng zuo sheng ; feng wu hu

..............page:177-184

Variance tendency in the 50-year annual meteorological and hydrological series of Hexi region of Gansu Province
chen ren sheng ; kang er zuo ; yang jian ping ; lan yong chao ; zhang ji shi

..............page:163-170

The using of digital remote sensing image method in soil erosion survey
zuo yao wen ; chen huai lu ; xu ke bin

..............page:157-162

Plasma IGF-1 and IGFBP-3 levels in newborn piglets with HIBD and research on aportosis of cerebral cortex
wang qing ; yao yu jia ; li zuo ru ; chen yong xiu

..............page:152-156

The effect of hexamethylene bisacetamide(HMBA)on activating transcription P21(cip1/waf1) and P53 in mucoepidermoid carcinoma cell in vitro
wang li jing ; wang jing

..............page:147-151

The effects of intraspecific competition on the relationship between height growth and biomass of annual plants
li zhong fang ; wang gang

..............page:141-146

Time budgeting of captive koklass pheasant Pucrasia macrolopha in breeding season
zhou tian lin ; han fen ru

..............page:136-140

Morphological Studies of the Skin and Skin Sense Receptor of Calotes versicolor
chang cheng

..............page:132-135

Constructing Pichia pastoris expression vectors of hepatitis E virus ORF2 1.3 kb gene
zhang chun jiang ; shen xin liang ; lei qing ; li qi min

..............page:127-131

Production of lignocellulolytic enzymes and wheat straw degradation of Pleurotus
xie jun ; ren lu ; zhang yi zheng

..............page:121-126

Preliminary studies on injury to the membrane system in plants under treatment of cadimium and lead
zhao fei zuo ; di lu xin ; chen zuo ; zhang ming quan ; zeng fu li

..............page:115-120

Studies on the photosynthetic characteristics of Broccoli
yu ji hua ; zuo jian ming ; shu ying jie

..............page:111-114

Study of superabsorbent polymer with high hydrogel strength
liu ming zhu ; jiang hong shen

..............page:106-110

Synthesis and anticancer activity of the derivatives of 4β-halogenated arylacylester-4′-demethylepipodophyllotoxin
yang zuo ; tian zuo ; zhang fu min

..............page:101-105

Synthesis and characterization of lanthanide chloride complexes with N,N′-dimethyl-N,N′-diphenyl-3,6-dioxaoctanediamide
wang yan bo ; shi yan ; jiao tian quan ; zhang ling

..............page:96-100

Studies on the batch foam fractionation behaviors of trace cetyl pyridinium chloride and sodium dodecyl benzene sulfonate in aqueous solution
deng hua ling ; hu zhi de

..............page:88-95

Spectrofluorometric determination of DNA with atebrine
zong zhi xin ; gong guo quan

..............page:83-87

Analysis of the property of dot-controllers in DMC
luo zhong liang ; gao chao ; zhang qian jin ; qiu wei gen

..............page:77-82

Designing H∞ controllers for hydraulic systems
shen yong jun ; shi wei xiang ; wang sun an

..............page:72-76

Equivalence relation based association rules mining
ma chun ling ; li lian

..............page:64-71

Theoretical analysis of fiber grating filter with high isolation and narrow bandwidth
lu huai wei ; liang yuan chun ; cui cheng gang

..............page:58-63

A phase-controlled series resonant inverter
li dong cang ; yang lei ; lv zhen su

..............page:52-57

Highly oriented and transparent polycrystalline ZnO films prepared by RF actively sputtering technique
gong heng xiang ; wang yin yue ; fang ze bo ; xu da yin ; yang ying hu

..............page:48-51

Modal strain energy method for detection of crack location in frame structures
wang song ping ; tang xiao bing ; shen cheng wu

..............page:42-47

A new method for bending problems of nonlinear viscoelastic beam
zhang feng wei ; zhang neng hui ; zhan hai yi

..............page:37-41

A model-analysis of Chinese urban residents housing finance
li ji ming

..............page:32-36

Note on sufficient condition of Hamilton graphs
zhao ke wen ; han feng ; li da chao

..............page:28-31

Existence of periodic solutions of a class of second order systems at resonance
wang shi qin ; an yu kun

..............page:22-27

A method to solve soliton-like solution for a variable coefficient KP equation
guo guan ping ; zhang jie fang

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

Existence of solutions for two-point boundary value problems of second order impulsive integrodifferential equations of mixed type
xie sheng li

..............page:12-17

Simplified Landweber iteration with stopping rule for a class of ill-posed problems
zhu you bin ; fu chu li ; qiu chun yu

..............page:1-6

Existence of solutions for a class of elliptic systems
wang jian sheng ; an yu kun

..............page:7-11