下界的
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Taking the plate tectonics as leading theories, combining outcrop, seismic techniques, drilling and logging datum, inter-verifing manifold researching methods, The paper has amply researched the region. discussed the coupling relation of basin-mountain and the geodynamics system; analyzed geologic tectonic characteristics of the basin; confirmed superposed alteration in Mesozoic of the basin; recompartmentalized tectonic units of the researching region and the basin; studied the tectonic evolution of the basin since Mesozoic; ascertained four large tectonic layers and five tectonic evolution process stages in different ways of formation and tectonic alteration; established different tectonic stages、compages、models and sedimentary filled processes, based on the organic geochemistry and oil-gas geologic characteristics in middle Cenozoic of the basin, the conclusions have been summarized in the paper, such as:The primary source rock in lower Permian and subordinate source rock in upper Triassic are developed in the region with better quality, and secondary hydrocarbon is possible; The bearing system which is comparted by three large tectonic layers and two unconformity surfaces formed in Palaeozoic、upper Palaeozoic to Triassic and Cenozoic developing in the region, compounded with reservoirs of different lithology is developed in the region, while the property of tectonic fracture reservoir is better; Based on the analyzing petroleum accumulation elements and preserving conditions, the deep depressing belt in the north of Luoyang depression、Shiling-Yiyang folded fault belt in Yiyang depression and wide anticline belt in Yichuan depression are advantageous petroliferous region, Zhaizhen anticline in Luoyang depression and Shimen wide anticline on footwall of overthrust in Yichuan depression are optimum tectonic traps.
本文以板块构造理论为指导思想,采用露头区野外地质与盆地地震、钻井、测井资料密切结合,多种测试方法互检的研究方法,探讨了盆山耦合关系及其所控制的地球动力学系统;分析了研究区域和盆地地质结构构造特征,确定了中生代盆地的叠合改造性质,并重新划分区域构造单元和盆地构造单元,深入研究了洛阳—伊川盆地自中生代以来的构造演化;确定了成盆作用和构造改造作用的四大构造层和五期不同方式、方向的构造演化过程;建立了不同构造阶段的构造组合和样式及与构造相关的沉积充填过程;在此基础上通过多种有机地球化学指标,研究盆地中新生代油气地质特征,认为本区发育下二叠统区域主力烃源岩、上三叠统区域非主力烃源岩,两套烃源岩质量均较好,并具备二次生烃条件;认为本区发育古生界、上古生界—三叠系和新生界三大构造层、两个不整合界面分隔、不同岩性储集层叠置组合和构造裂隙型储集层的复式储集体系,其中构造裂隙型储集层储集性能较好;依据油气成藏条件和保存条件分析,认为洛阳凹陷北部深凹带、宜阳凹陷内石陵—宜阳褶断带以及伊川凹陷伊川宽阔背斜带为较有利含油气区,有利的构造圈闭是洛阳凹陷翟镇背斜和伊川凹陷的石门逆冲断层下盘的宽缓背斜
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Our study bases on following environment and conditions: H-1: The measurable set-valued mapping F : X - CC is e-bounded almost lower semicontinuos
这些研究是在如下环境和条件下进行的: H-1:X是n-维Banach空间(n>1)中的有界闭凸集,且可测集值映射F:X→C_c是ε-有界几乎下半连续
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We investigate the lower bounds of concurrence for tripartite, and even multipartite quantum mixed states in Sec.
在本文的第四部分,通过寻找Concurrence与推广的部分转置之间的关系,我们给出了三体及多体量子态Concurrence的一个下界,这个下界是易于计算的。
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In chapter three, we study the lower orientable strong radius and strong diameterof the Cartesian product of graphs and prove that: srad(G_1×G_2)= 2r(G_1×G_2),sdiam(G_1×G_2)≤min{sdiam(G_1)+sdiam(G_2), 2(G_1×G_2), 4r(G_1×G_2)}. Furthermore,we establish three sufficient conditions for sdiam(G_1×G_2)= 2d(G_1×G_2)holds and determine the values of the lower orientable strong diameters of somespecial graphs. Moreover, we give the exact value of SDIAM, a lowerbound for SDIAM, an upper and lower bound for SRAD andSRAD, respectively.
在第三章,研究了笛卡尔乘积图G_1×G_2的最小强半径,证明了如下结果:srad(G_1×G_2)=2r(G_1×G_2),sdiam(G_1×G_2)≤min{sdiam(G_1)+sdiam(G_2),2d(G_1×G_2),4r(G_1×G_2);给出sdiam(G_1×G_2)=2d(G_1×G_2)成立的三个充分条件,并由所给出的充分条件确定了一些特殊笛卡尔乘积图的最小强直径的值;确定了SDIAM的确切值,SDIAM的下界,SRAD和SRAD的上、下界。
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Compare to existing results for general graph, new lower bound on the size of the minimum feedback vertex set of-star graph is given based on its special structure.
本文主要讨论了关于组合星图反馈结点集的下界问题,在基于组合星图的性质和已有相关结果的基础上,给出了组合星图反馈结点集的新的下界。
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Moreover, an improved upper bound on the average MAP decoding error probability of linear Slepian-Wolf systems for stationary memoryless sources is derived. Based on this improved bound, we analyze the performance of Slepian-Wolf systems based on LDPC codes and random permutations, and prove that under some conditions, all but diminishingly small proportion of LDPC encoders and permutations are good enough for the design of practical Slepian-Wolf systems when the coding length is very large.
然后,论文在相关平稳无记忆信源下推导出线性Slepian-Wolf系统平均MAP译码错误概率的一个改进上界,并在这一改进上界的基础上,分析了基于LDPC码和随机置换的Slepian-Wolf系统的性能,证明了在一定的条件下,当编码长度非常大时,几乎所有的LDPC编码器和置换对于实际Slepian-Wolf系统的设计都是足够好的。
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In many cases,even it is very difficult to find out good bounds of the crossing numbers of graphy .
Johnson已经证明确定图的交叉数是一个NP完全问题(见文献[4]),因为其难度,我们能够确定交叉数的图类非常少,在许多情况下,即使找出图的交叉数的一个好的上界或下界也是非常困难。
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Based on the idea and technical in the references[16],[17]and[26]as well as the theories of martingale,Brownian motion and stochastical orders,the expectation of present value of annuities with controlled random interests is obtained,and the upper bounds of present value function of discrete stochastic annuities with random interests in sense of convex order are derived,and the numerical characteristics of upper bounds are also obtained,furthermore,the expec
基于文[16],[17]和[26]的思想方法以及鞅、反射Brownian运动和随机序的理论,得到了控制随机利率下连续年金现值的期望,并给出了离散随机年金现值函数在凸序意义下的上界,讨论了上界的分布函数和停止损失保费,进而得到了离散的随机年金现值的期望。
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The Steel 2-incision approach, the Geissele subcutaneous approach, and the subfascial/subtrapezial approach were then carried out on each cadaver.
外侧分支在距离横突尖平均6.8毫米处越过下位肋骨的上界,在距离横突尖2.7毫米处越过下界。
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So to find a good lower bound is an very important issue in the theory of uniform designs.The present paper aims at obtaining some new lower bounds for the symmetric L_2-discrepancy on some kind of symmetric factorials and asymmetric factorials.
在本文中我们针对某些类型的对称和非对称因子设计得到了对称化L_2—偏差的新的下界,利用这些下界我们不仅可以衡量给定设计的均匀性程度,还可以帮助我们构造均匀设计。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。