Journal of Northwest University(Natural Science Edition) 2008 Issue 3 Finding pre-emergency marked layers using finite difference dividing methods for oil layer comparison

Finding pre-emergency marked layers using finite difference dividing methods for oil layer comparison
GAO Jing-le;SONG Guang-shou;YANG Wen-hua;WANG Rui-fei;GAO Hui

..............page:475-479

Characteristics of gas reservoir in the palaeozoic shan32 of Zizhou-Qingjing Area,Ordos Basin
HAN Zong-yuan;FANG Qing-hai;SONG Bo2;LU Wen-peng;WANG Zhi-wei;XU Bo;GAO Hui

..............page:467-474

Cased-hole resistivity logging reservoir evaluation of petroleum feature changes
CHENG Xi;REN Zhan-li

..............page:462-466

Analysis of the fracture properties of the Wreservoir in Xinjiang Oilfield
LI Yong

..............page:455-461

The reservoir rocks of deep-water turbidite fans in the eastern segment of the steep slope zone of northern Dongying Sag
ZHANG Jing;WANG Wei-feng

..............page:451-454

Comparison of gene expression profilings between gastric and esophageal carclnoma by oligonucleotide microarray
HAO Jin;NIE Meng;DU Peng;CHEN Chao

..............page:447-450

Mutation characteristic of rpoB gene of rifampin-resistant clinical mycobacterium tuberculosis in Xi'an
YIN Ling-fang;LU Xue-dong;MENG Shi-jie;XING Lian-xi;SU Xiao-hong

..............page:443-446

The foodplant replacing experimentation of Luehdorfia butterflies
YAO Xiao-yong;XING Lian-xi;TAKAYOSHI Matsumura;SU Xiao-hong

..............page:439-442

Isolation of acid resistant α-amylase and its characteristic research
LI Bo;DANG Yong;MA Yu;DU Lei

..............page:435-438,442

The isolation of the endophytic from Sinopodophyllum emodi(Wall.)Ving and the selection of strains producing podophynum substance.
ZHANG Kun;HUANG Jian-xin;CAO Li;YUAN Wen-chang

..............page:431-434

Mercuric sulfide-the effective ingredient in cinnabaris in traditional Chinese medicine
LIU Zhu-lan;WANG Cui-ling;LIU Jian-li

..............page:428-430

Synthesis and crystallographic structural studies on two mononuclear complexes of Co(Ⅱ),Ni(Ⅱ)from 2-acetylpyridine and ethanolamine
YUAN Hon-gan;DU Gui-xiang;LIU Jing-jing;LI Jun;ZHANG Feng-xing

..............page:423-427

Synthesis and characterization of the complexes of RE3+with 1,2,4,5-benzenetetracarboxylic acid
WANG Xiao-yan;LIU Rui-ping;WANG Li-jun;LIU Fei;YANG Xu-wu

..............page:419-422

Synthesis of 4-amino-5-substituted-1,2,4-triazole-3-thione schiff bases
BAI Yan;SUN Xiao-hong;LIU Yuan-fa;CHEN Shu-zhe;CHEN Bang

..............page:415-418

A study on the synthesis and analysis of phosphoryIcholine dichloride
YANG Shan;ZHANG Shi-ping;LI Jing;GONG Yong-kuan

..............page:410-414

Research on semantic annotation to cultural relic images based on relevance feedback
WEI Na;GENG Guo-hua;ZHOU Ming-quan

..............page:387-390

Some relationships between several bases for a Hilbert space
CHEN Zheng-li;CAO Huai-xin;LU Ling

..............page:345-348,353

Determining pre-topologies by pre-neighborhood system operater,pre-open-neighborhood base operater,or pre-base
YANG Xiao-fei;LI Sheng-gang

..............page:349-353

The criteria of an involutory Pascal matrix
GAO Yu-fen;CHEN Fang

..............page:354-356

Random weighting estimation and its application for kernel density
LI Yu-ren;GAO She-sheng;ZHANG Xue-yuan

..............page:357-359,362

Continuity equation of laser and dynamical laws
WEI Nuo;WANG Qiao-yan;HAN Xiao-wei;ZHANG Hua-ping

..............page:360-362

A fractal figure based on square & its algorithm
LI Yong-hong

..............page:363-365

EIS analysis on electrochemical properties of passive film formed on X80 pipeline steel
ZHAI Wen;ZHENG Mao-sheng;BAI Jing

..............page:366-370

An improved adaptive image denoising model based on total variation
HOU Yu-qing;ZHANG Huan;SHI Jing;ZHANG Ling-yan

..............page:371-373

Two-dimensional thresholding segmentation method based on maximnm inter-class cross entropy
QIAO Wei-wei;WU Cheng-mao

..............page:374-378

Structure analysis and synthesis of GaN powder by sol-gel method
WANG Shan-shan;WANG Xue-wen;ZHAO Wu;ZHANG Zhi-yong

..............page:379-382

Non-texture inpainting by third-order nonlinear diffusion
ZHU Xuan;ZHOU Ming-quan;GENG Guo-hua;WANG Lei

..............page:383-386

Sedimentary facies and its evolution of Jurassic Zhiluo formation in Ordos Basin
ZHAO Jun-feng;LIU Chi-yang;ZHAO Jian-she;WANG Xiao-mei

..............page:480-486

The ecosystem environmentaI evaluation with remote sensing technology in middle-up stream of Yellow River drainage basin
WANG Xiao-feng;REN Zhi-yuan;TAN Ke-long

..............page:487-490

Analysis between reference value of iniddleaged man men's hemoglobin and geographical factors in China
LIU Qian;LIU San-yang;GE Miao

..............page:491-494

A research on the grid size in constructing DEM with 1:2 000 topographical map
XIE Yuan-li;ZHANG Wei;WU Le-wen;ZHANG Su;YU Shen-yang;XU Guang-yan

..............page:495-498

Calculation analysis of elevation carry-over accuracy theory about inclination super high-rise building
MO Nan-ming

..............page:499-502

A study on the strategy for tourism breakthrough development of south Shaanxi Province in the new period
MA Yao-feng;ZHANG You-yin;CHENG Wei;LIU Hong-ying;ZHAO Xian-hong

..............page:503-507

A study on Shicha algorithm of parallax theory in Almagest and Surya Siddhanta
TANG Quan

..............page:508-512

The development of Euler's contribution to the concept of function
JIA Sui-jun;REN Rui-fang

..............page:513-516

xue shu dong tai

..............page:356,365,378,382,386,418,446,474,498

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

..............page:封3

Computation formulas of points on transition curve in road construction and application of program CASIO-fx4500
CHEN Xiong-wu

..............page:407-409,414

A study on economic evaluation for alternatives of engineering project on fuzzy and random condifion
XIANG Shou-sheng;ZHAO Yan-feng

..............page:403-406

Topological sequencing algorithm based on cellular automata model
GU Jing

..............page:399-402

A study on comprehensive evalution of road transportation safty based on grey relational grade
GONG Hang-jun

..............page:395-398

Registration algorithm of life-data restore based on statistical model
XU Xiang;GENG Guo-hua;FENG Jun;OU Xiao-zhe

..............page:391-394