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Journals   A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Journal of Yanan University(Natural Science Edition)
1004-602X
2012 Issue 1
Optimization of Two - Stage Cementing Design in Xinanbian Oilfield
yu zhong bao ; sha li hong ; yu hai tang
..............page:56-58,61
Characteristics Chang 6 Reservior Structure in Hengshan Region
gao ling ; li tian yuan
..............page:49-51
Investigation for the Diversity of Landscape Plant Species in Yan an
liu shi peng ; liu chun ling ; cao juan yun
..............page:96-101
n Prime Ideal,Partially Ordered Homomorphisms and Quotient Ordered Homomorphisms of Partially Ordered Semigroups
shao hai qin ; guo li qin ; he jian wei ; yang sui yi
..............page:1-3
Generalization of the Trace of a m×n Matrix
yang zuo ; liu xing xiang ; yue yu ying
..............page:14-15
Optimality with Semilocal λ-Subconvex for Multi-objective Semi-infinite Programming
liu zuo zuo ; zhang qing xiang ; gao ying ; zhang yong zhan
..............page:28-30
Study of Optimizing Perforation Craft of the Tight Lithologic Reservoir
li ping ; li kuan liang ; zhou guo xin ; wang ya peng ; yin xiao
..............page:52-55
Analysis of Quality of Mountain Spring Water in Yan an Baota District
gao cai hong ; liu chun li ; yi hui ; liu yu
..............page:85-88
Adjustment of Injection -Production Pattern in Liuluoyu Area of the Xiasiwan Oil Field
wang zhen bin ; geng chuan lin ; lu jin feng ; chen zuo ; pu yang dong
..............page:59-61
Comparative Analysis of the Mossflora Relationships between Ziwuling Nature Reserve and Its Neighboring Florea
wang xiang chuan ; xu yu lin ; guo ping ; wang ma li
..............page:102-108
Normality Separation of Being Relatively in L-smooth Topological Space
zhang min zhi ; ma bao guo ; wang zuo
..............page:25-27
A Class of Third - Order Nonlinear Differential Equations Sturm Comparison Theorem
li fei fei ; qin hong li
..............page:16-18,21
yan an da xue xue zhe zhu lian ying jiao shou
..............page:F0002-F0002,F0003
Transformation Process Optimization for Fracture of Chang 2 Quan 54 Well Area of Xiasiwan Oil Field
chen zuo ; geng chuan lin ; duan guang liang ; feng xue fu
..............page:66-70
yan chang you tian ya lie shi gong xing wei mo ni
fan shi zhong ; zuo xu bin ; ren hai long
..............page:71-76
jiang di diao jie guan yi biao gu zhang fang fa de yan jiu
yang xiao mei ; zhou zuo zuo
..............page:80-81,84
Forecast of Favorable Exploration Areas of the Combination in Zhidan Area
xie zheng yi ; guo zhan lin ; liu zhi yan ; liu gang
..............page:62-65,70
Application of Photonic Crystal Fibers in Communication Network
yuan ping ke ; li yong an
..............page:43-45
lun ha mi dun yuan li
miao hong mei ; xue lin na
..............page:46-48
The Countable Compactness in Space
wang zuo ; ma bao guo ; zhang min zhi
..............page:22-24
Some Asymptotic Formulas about the r-th Power Factor of Integer n
jin jing ; zhu wei yi
..............page:4-7
xia si wan you tian chang 2 di shen you cang chao qian zhu shui kai fa xiao guo fen xi
wang cong e ; cao jin ; geng chuan lin
..............page:77-79
Application of 0.618 in Social Life
su jin feng
..............page:35-39
Research on the Mean Value of Smarandache Function LS (x)
huang zuo ; ma zuo
..............page:19-21