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Search Results: 1 - 10 of 251772 matches for " <br>王建军 "
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TECHNIQUE STUDY OF ACROSS-FAULT DEFORMATION MEASUREMENT AND ITS APPLICATION
跨断层形变自动化观测技术的研究与应用

Wang Jianjun,<br>王建军
岩石力学与工程学报 , 2004,
Abstract: Fault dislocation due to large earthquake is known very well by people,and geologic disasters induced by fault creep get more attentions gradually. There is a relationship between the seismogenic process of earthquake and a abnormal variation of fault creep rate. The deformation of fault creep is potential threatening to the safety of nuclear power plant,dam of reservoir,lifeline systems of a city,large and high buildings. The technique for automatic measurement of fault deformation is of advantage to investigation in present-day fault activity,earthquake observation and prediction,and engineering safety evaluation. The photoelectric system for fault deformation measurement was developed by the Institute of Crustal Dynamics at the end of the nineties of the last century,with high precision,large ranges and no electricity drift,which adopted a displacement sensor with charge coupled device(CCD) as the key components. This measurement system is reliable,too,for fault movement observation accurately and continuously.
SEVERAL PROBLEMS IN APPLICATION OF HYDRAULIC FRACTURING METHOD TO IN-SITU 3-D STRESS MEASUREMENT
应用水压致裂法测量三维地应力的几个问题

Wang Jianjun,<br>王建军
岩石力学与工程学报 , 2000,
Abstract: Several problems are investigated, which exist in the in-situ 3-D stress measurement by hydraulic fracturing at the underground powerhouse area of a pumped storage power plant in Xinjiang. A simple way is presented for stress determination when inclined hydraulic fracture occures on the borehole wall, and the application prospects are discussed of the hydraulic fracturing method for in-situ 3-D stress measurement in the future.
Studies on the ecological disturbance on resistance of Helicoverpa armigera and biochemical mechanism
棉铃虫田间种群抗药性的生态学干扰和生化机制研究

WANG Jian-Jun,<br>王建军
生态学报 , 2001,
Abstract: The cotton bollworm Heliothis Armigera is a serious pest of cotton and other economic crops in China,where it has developed resistance to several kinds of insecticides,such as pyrethroids,cabamates and organophosphates,and has caused huge economic loss and even catastrophe to cotton production.In turn,the cotton bollworm has received much attention in the past decade in toxicological studies.However,classic research on resistant cotton bollworm is mainly limited to the laboratory study,little attention has...
相关系数信息在实证研究中的综合利用
The Comprehensive Utilization of Correlation Coefficient Information in the Empirical Study
 [PDF]

王建军, 杨辉平
Statistics and Applications (SA) , 2014, DOI: 10.12677/SA.2014.34026
Abstract:
相关系数是统计学中非常重要的概念,统计学经常是要研究相关,寻找相关,相关系数不仅提供了相关程度与方向,更重要是利用相关关系得到辅助信息。本文阐述如何在实证研究中综合利用相关系数信息,多角度分析了利用相关系数所提供的辅助信息的场合与方法,对全面认识相关系数,如何避免伪相关具有重要意义。
Correlation coefficient is a very important concept in statistics. Most purposes of statistics are to research and find relevant information between variables. Correlation coefficient not only provides the related degree and direction. More importantly, it can get useful auxiliary information by correlation. This paper describes how to make use of correlation coefficient information in empirical research. It analyzes occasion and method which use auxiliary information provided by correlation coefficient from multiple perspectives. For an overview of the role of correlation coefficient, how to avoid spurious correlation is of great significance.
Direct and Inverse Approximation Theorems with Jacobi Weight forCombinations and Higher Derivatives of Baskakov Operators
Baskakov算子线性组合加Jacobi权逼近及高阶导数的正逆定理

WANG Jianjun,XU Zongben,<br>王建军,徐宗本
系统科学与数学 , 2008,
Abstract: Using the mo{\rm d}uli of smoothness $\omega_{\varphi^{\lambda}}^{r}(f,t)_{\omega}$, direct and inverse approximation theorems with Jacobi weight for combinations of Baskakov operators is established in the paper, and the relation between higher derivatives of the operators and the smoothness of functions to be approximated is obtained in the paper.
一类分数阶冠状动脉系统的混沌同步控制
Chaos synchronization of a class of fractional-order coronary artery systems

孟晓玲,王建军<br>MENG Xiaoling, WANG Jianjun
- , 2018, DOI: 10.6040/j.issn.1672-3961.0.2016.463
Abstract: 摘要: 基于Lyapunov稳定性理论和分数阶微积分,研究一类分数阶冠状动脉系统的混沌同步问题,给出系统取得同步的三个充分性条件。研究表明:选取适当的控制器,系统能够取得混沌同步。
Abstract: The problem of chaos synchronization for a class of fractional-order coronary artery systems was studied based on Lyapunov stability theory and fractional-order calculus. Three sufficient conditions were arrived that the fractional order systems was chaos synchronized under appropriate controller. The research conclusion illustrated that systems was chaos synchronization under proper conditions
丹东地区城镇体系的研究
王建军
地理科学 , 1988,
Abstract: 丹东地区城镇体系是指由丹东市及其所辖的凤城、东沟、宽甸,岫岩四个县范围内的90个各级各类城镇所组成的城镇体系。这一地区位于辽宁省东南部,总面积1.9万平方公里,与朝鲜隔鸭绿江相望。丹东是我国最大的边境城市。作为一个开放的边境城市,丹东在辽宁省及东北地区占有相当重要的地位。
多分层煤层压裂起裂压力及起裂位置研究
王建军
煤炭科学技术 , 2015,
Abstract: 针对重庆松藻矿区煤层分层多、埋深和倾角变化大,导致煤层压裂参数选择和抽采钻孔布置存在盲目性的问题,采用最大拉应力理论的断裂失效准则,通过理论分析建立了多分层煤层压裂的起裂压力计算模型,并就倾角和埋深对煤层压裂起裂压力和起裂位置影响规律进行试验研究。结果表明:煤层压裂的起裂压力在埋深相同时均不随煤层倾角的改变而改变,而在倾角相同时与煤层埋深呈线性增加关系,与理论计算的起裂压力随煤层倾角和埋深的变化规律相一致。多分层煤层压裂起裂位置均位于软分层中,近水平煤层中形成网状裂缝,无明显主裂缝存在,随倾角增大,倾斜煤层中易形成明显主裂缝,主裂缝周围网状裂缝逐渐减少。
郑州地区煤矿事故特征及对策
王建军
煤炭工程 , 2010,
Abstract: 本文统计了郑州地区近几年发生的煤矿各类事故,得出该地区各类事故中瓦斯事故最严重,顶板事故发生次数最多,一次死亡10人以上的事故虽然次数不多,但死亡人数的比例却很高。同时,对发生事故的原因进行了系统分析,并提出了相应的对策及解决方法。
压磁套芯解除法地应力测量技术研究进展
王建军
岩石工程学报 , 1999,
Abstract: 作者简介王建军,男,1964年生,工程力学硕士,副研究员,主要从事地应力测量技术、构造应力场、诱发地震及地下工程稳定性等方面的研究工作。1引言地应力测量在地学研究中具有重大的理论意义和实际意义,构造体系的分析,地震预报研究,都必须了解地壳中的应力状...
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