层理论的
- 与 层理论的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on seismic, well logging, drilling and core data, five super sequence boundaries have been identified by using methods of sequence stratigrphy theory in deep formations of Shengping area, northern part of Songliao basion. They are the top boundaries of bed rock (SSB1), the bottom boundaries of Shahezi group (SSB2), the bottom boundaries of Yingcheng group (SSB3), the bottom boundaries of Denglouku group (SSB4) and the bottom boundaries of Quantou group (SSB5) respectively.
应用层序地层学基本理论,在综合分析工区地震、测井、岩心等资料的基础上,确立了超层序界面、准层序和准层序组识别标志,进而对松辽盆地北部升平地区深层进行超层序界面识别,共识别出五个超层序界面,分别为基岩顶面(SSB1)、沙河子组底面(SSB2)、营城组底面(SSB3)、登娄库组底面(SSB4)和泉头组底面(SSB5)。
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The main problems researched in the dissertation and achievements are as follows: The dissertation explains the science background and the theoretical and actual meaning of the task. The progress and the problems of the flow imaging technique are briefly explained. The advantages of electrical capacitance tomography are discussed. The paper discusses the formation and operating principle of ECT, and builds up the definite mathematical model by detail theoretical analyse, and establishes the Finite Element Model of the system by changing the finite boundary value problem of ECT into equivalence variation problem according to variation principle. On the basis of the FEM of the system, the paper builds the finite element model of the capacitance sensitivity field distribution and programs its finite element simulation software and proves the validity of the FEM of the ECT from different aspects. With the FEM and the qualitative analyse of the effect of each structural parameter of the capacitance transducer on its capability, this paper optimizes the structural parameters of the capacitance transducer, and obviously improves its capability. The compare of the simulated result with the static experimental result shows that the error of them is less than 0.9%.
其主要研究内容包括:阐述课题研究的学术背景及其理论与实际意义,概括总结出流动层析成像技术的发展现状和存在的问题,指出电容层析成像技术的优点;讨论电容层析成像系统的组成及工作原理,进行详尽的理论分析,以变分原理为基础,将ECT的有限元边值问题转换为等价的变分问题,从而建立系统的有限元模型;在系统有限元模型的基础上,建立敏感场的数学模型,编制有限元的仿真软件,并从不同角度证明电容层析成像系统有限元模型的正确性;利用有限元模型,定性地分析电容传感器各结构参数对其性能的影响,并对传感器结构参数进行优化设计,使其性能得到明显的改善。8电极ECT系统的仿真和静态实验结果的比较表明,它们之间的相对误差小于0。
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A series of theoretical and experimental studies on the microstrip patch antennas with dielectric superstrates is carried out systematically. Firstly, a comprehensive survey of the microstrip antenna technology and its theories are presented. Then, two analysis techniques, named as the spectral domain Green's function method and the spectral domain integral equation method are developed. The SDGF method is a simplified analysis technique, which takes advantage of the spectral domain immittance approach to find the dyadic Green's function for the stratified media, and obtains the complete closed-form formulas for radiation patterns, directivity, efficiency, gain etc. Some interesting calculated results are presented. The SDIE method is capable of determining resonant frequency, radiation characteristics, input impedance etc, for the covered microstrip patch antennas. Comparing with other full-wave analyses it reduced computation and mathematical labour remarkably. The singularities near the pole location of the surface-wave modes and the difficulty of the integral computation over infinite range of oscillating integrands are dealt with actively and documented well. Results predicted by the SDIE method agree extremely well with our experimental results for resonant frequencies of various superstrates. The superstrate effects on impedance and radiation characteristics also have been investigated experimentally so that the gap due to lack of measured data and computed results for multi-layered superstrate has been filled to some degrees and two useful observations have been achieved for weakening the resonant frequency shift and optimizing the microstrip antenna gain. As a meaningful application, the design and analysis of a 4×4 patch array are introduced.
实用微带天线普遍加介质覆盖层来防护热,物理损伤和环境影响,也可能在飞行或严酷气候条件下自然形成覆盖层本论文对带介质覆盖层的微带贴片天线系统地作了一系列理论和实验研究首先,对微带天线技术和理论作了全面的综述然后,发展了两种分析方法,称为谱域格林函数法和谱域积分方程法SDGF法是一种简化的分析技术,它利用谱域导抗法来求得分层媒质的并矢格林函数,并得出方向图、方向性系数、增益等参数的完整的闭式公式,给出了一些令人感兴趣的计算结果SDIE法能确定介质覆盖微带天线的谐振频率、辐射特性和输入阻抗等与其它全波分析方法相比,它明显减小了计算量和数学工作量已有效地处理了表面波模极点附近的奇异性和对振荡的被积函数的无限区间积分计算的困难对于不同覆盖层情况下的谐振频率,由SDIE法所预示的结果与我们的实验结果吻合得很好对于覆盖层对阻抗和辐射特性的影响也已作了实验研究这在某种程度上填补了缺少实验数据和计算结果之间的间隙,并得出了缓解谐振频率偏移和优化天线增益的两点有用的结论作为有意义的应用,介绍了一个4×4元矩形贴片天线阵的设计和分析。
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Guided by the theory of sequence stratigraphy, using the data of seismic, drill, well-logging and core, and adopting the multiplex geophysical techniques of well-logging and seismic composite analysis, 3D seismic interpretation, well-logging inversion, isochronism slicing and Stratimagic seismic facies analysis, this paper goes deep into studying some technical problems about the establishment of isochronal sequence stratigraphy framework, the prediction of sedimentary microfacies distribution and the prediction of the subtle reservoirs, and then preliminarily establishes a set of techniques about high resolution sequence stratigraphy research and subtle reservoir exploration, which is guided by the theory of modern sequence stratigraphy and armed with advanced geophysical interpretation techniques.
本文以层序地层学理论为指导,综合利用地震、钻井、测井和岩芯等资料,充分应用井-震综合分析技术、三维地震解释技术、井约束反演技术、等时地层切片技术和Stratimagic地震相分析技术等手段,深入研究了井-震等时层序划分、沉积微相展布及隐蔽油藏分布预测等技术难题,初步形成了一套以现代层序地层学理论为指导,以先进的地球物理解释技术为手段的高分辨率层序地层学研究和隐蔽油藏预测技术方法体系,并将该技术方法体系在四方坨子地区进行了试用,取得了明显成效。
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Based on sequence stratigraphy theory, three types of identification signs of sequence interface were identified and middle-lower Jurassic was divided into five third-order sequences and ten fourth-order sequences, then the sequence stratigraphic framework was established in Turpan sag.
摘 要:利用层序地层学理论,在吐鲁番坳陷中下侏罗统确定3类层序界面识别标志,划分出5个三级层序,10个四级层序,建立吐鲁番坳陷中下侏罗统的层序地层格架。
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Analytical formulae are presented for the first time to describe the shift in the resonance wavelength of LPG in response to etching of the fiber cladding or a change in the external refractive index. The accuracy of the formula is confirmed by comparision with numerical simulations and experimental results. We demonstrated that the resonance wavelengths of an etched LPG are more sensitive refractive index than those of an unetched grating. The bending properties of long period fiber grating written in different type fiber are studied experimentally. The transmission peaks and the central wavelength of LPG change with the bending of the fiber. A new peak appears at the shorter wavelength when the fiber is being bent. The changes of the peaks are different for different photosensitive fiber. Those properties have broad application foreground in fiber sensors and tunable filters.
分别从理论和实验上对长周期光栅的折射率特性以及光纤包层半径对长周期光栅特性的影响进行了研究,首次给出了描述光纤包层半径腐蚀和外界折射率改变与长周期光栅共振波长关系的理论表达式,实验与理论和数据模拟的结果很好符合,利用腐蚀光纤包层的方法可以有效地提高LPG的折射率灵敏度;对不同光纤中写入的长周期光栅的弯曲特性进行了实验研究,LPG的透射峰形状及其中心波长随光纤弯曲而发生变化,并且随着弯曲将在短波方向出现新的透射峰,其透射峰的变化规律因所用光敏光纤的不同而不同,这一特性在光纤传感和可调谐滤波器方面有重要的应用前景。
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With that point in mind we review here some advances in the classical boundary layer, multilayer boundary layer, interacting boundary layer and diffusion parabolized NS equations theories and corresponding algorithms and applications.
以此为线索,简要评述经典边界层、多层边界层、干扰边界层、扩散抛物化 NS方程诸理论、相应算法和应用的若干研究进展;诸理论之间以及他们与实验的关系;简化湍流计算的一点注释以及物理分析和数值模拟相结合的一些问题。
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The research of this dissertation is imbursed in NationalNatural Science Foundation of China (the serial number:40174039, 49874030) andTahe oil field rock physics research topic (the serial number: P01058) of Sinopec"exploration and application of complex medium seismic wave transmitting rule"project and national science and technology tackle key problem project (the serialnumber: BA605A-05-01 in 2001) under union subsidization and under departmentscientific research project assistance, in allusion to the complex changeable reservoirprediction question, the nonlinear dynamics science in brand-new concept, the theoryand the algorithm are introduced and applied during the reservoir prediction and theevaluation, based on the oil-gas fracture-cave reservoir physics model tests andanalyses, having founded the new reservoir prediction theory and the methodtechnology.
本论文研究是在国家自然科学基金NSFC(编号:40174039、49874030)、中石化&复杂介质地震波传播规律探索及其应用&项目塔河油田岩石物理研究专题(编号:P01058)和国家科技攻关项目(编号:2001年BA605A-05-01)的联合资助下及部门科学研究项目的协助下,针对复杂多变的储层预测问题,将动力学非线性科学中的全新概念、理论和算法引入和应用于储层预测与评价之中,结合油气缝洞储层物理模型实验成果,创建了新型的储层预测理论和方法技术。
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In order to investigate the effects of free air CO2 enrichment on rice and wheat canopy energy balance and water use efficiency, filed experiments were carried out from 2002 to 2005 using the FACE system in Jiangsu province for rice and wheat canopy micrometeorology observations.
为研究大气CO2浓度增高对水稻和小麦冠层能量平衡和水分利用率的影响,本项目利用建立在江苏的我国唯一的FACE系统为试验研究平台,以作物冠层能量平衡理论为基础,将冠层小气候田间试验与理论分析相结合,定量分析了FACE条件下水稻和小麦冠层能量平衡各分量的变化特征。
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In chapter 2 and 3, experimentally, using the Angular-Resolved high-resolution fast Electron Energy Loss Spectrometer , at the condition of 2. 5 keV incident energy and 50-60 meV energy resolution, we measured the Optical Oscillator Strength Density Spectra for the excitations of 4p, 4s or 3d electron. The oscillator strengths for excitations of the valent shell 4p electron were obtained, and comparisons were done between presently experimental and previously experimental and theoretical results. The experimental results of different groups agree with each other approximately, but the semi-experientially theoretical results do not match with the experimental results. The delayed maximum in the photoabsorption spectra was discussed. It should arise from the transition of 4p→∈d. For the excitation of the inner-valent 4s electron, the discrepancies for the resonant structures in previous electron-impact results and photoionization results were clarified in present work, which confirms again that the fast electron impact method is suitable to measure the optical oscillator strengths. The autoionization Rydberg series 4s〓ns (n=5, 6, 7) and 4s〓nd (n=4, 5, 6, 7) were identified without ambiguity by the measurement at 0°, 2° and 4°scattering angles. The energy levels and natural widths of the excitations of Kr3d and Ar2p inner shell, including optically allowed and forbidden transitions, were determined. The widths of these inner shell excitations are nearly the same, which was interpreted by the Resonant Auger effect .
在第二章和第三章,实验上,使用角分辨的高能量分辨快电子能量损失谱仪,在2.5keV电子入射能量和50-60meV能量分辨下,测量了Kr原子由价壳层4p到内价壳层4s,再到内壳层3d电子激发的光学振子强度密度谱;得到了价壳层4p电子激发束缚态的光学振子强度,与前人实验和半经验理论结果作了细致的比较,说明几家实验是比较符合的,但半经验的理论计算存在问题;分析了光吸收谱中的延迟极大现象,说明在第一电离阈值以上几个eV范围内的极大值源于4p→εd跃迁产生的延迟极大;对于内价壳层4s激发的自电离区,澄清了前人实验中电子碰撞方法和光学方法在共振结构上存在差异的问题,再一次肯定了快电子碰撞方法是获得绝对光学振子强度的一种好方法;通过在非0°散射角的测量(如2°和4°),清楚地标识了4s电子激发的光学禁戒跃迁自电离里德堡系列4s〓ns(n=5,6,7)和4s〓nd(n=4,5,6,7);通过在0°和4°散射角的测量,观测并标识了几个新的内壳层光学禁戒跃迁能级,得到了Kr原子3d和Ar原子2p内壳层激发态(包括光学允许和禁戒跃迁形成的)的能级位置和自然宽度,用共振俄歇效应解释了这些内壳层激发态(不管是光学允许还是禁戒跃迁产生的)的自然宽度彼此比较接近的原因。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。