practical seismic 实际地震(19) 实际地震道(2)   实际地震      Then,we present a detailed scheme of classification for the practical seismic problems,and theoretically discuss the necessity that different regression methods should be adopted for the different kinds of issues.      针对实际地震问题给出了具体的分类方案,从理论上论述了不同类型问题采用不同的回归方法的必要性。 短句来源      In practical seismic data processing achievement profile,wave group characteristics of every reflection zone are clear,information of layer to layer is rich and wave shape is natural and stable.      在实际地震资料处理的成果剖面上 ,各反射层位的波组特征清楚 ,层间信息丰富 ,波形自然稳定。 短句来源      The model test and processing of practical seismic data showed that application of the approach not only greatly improved the S/N ratio and continuity of seismic data, but also can acquire three parameters of seismic wavefront attributes, benefit to improve the precisions of seismic velocity inversion and computed residual statics as well as the effect of AVO analysis.      对模型和实际地震资料的处理表明:应用此法不仅可以极大地提高地震资料的信噪比和连续性,而且可以获得三个地震波场属性参数,有利于提高地震波速度反演的精度、剩余静校正量的求取精度以及AVO分析的效果。 短句来源      It should consider the influences of these factors when analyzing elastic wave velocities either in laboratory condition or in practical seismic exploration.      因此不论在实验室条件下,或是在实际地震勘探中分析弹性波速度时,应考虑这些因素影响。 短句来源      Also, in our software, we have made the practical seismic data processing by the prediction of fractured amizuth and the fractured density, then evaluated the exactitude of the predictions by the evaluation of the assessment parauceter, and at last confirm one optimum detection methods of fractured amizuth,the wavelet difference scale filter method, and two the optimmer fractured density detection method, the wavelet amplititude singular exponential method and the wavelet power spectrum singular exponeatial method.      并用自编软件，将三种裂缝方位预测和三种裂缝密度预测用于实际地震资料处理，并用评价参数检验评估其正确性，最终在现有的方法中确定了最优裂缝方位检测方法—小波变尺度滤波法和最优裂缝密度检测法—小波振幅奇异性指数法和小波功率谱奇异性指数法。 短句来源 更多          实际地震道      And then these geological models are forwarded and converted to seismic response models. At last sliding time window comparison method is used to correlate these models to practical seismic traces of the target intervals, reversing these traces to geological models according to maximum similar coefficient and then predicting sand body distribution of the reservoir, the practical results are better.      在此基础上 ,对这些地质模型进行正演并将其转换成地震响应模型 ,最后采用滑动时窗对比法 ,将这些地震响应模型与目的层段内的实际地震道进行多参数对比 ,以相似系数最大为准则将实际地震道反演成地质模型 ,从而达到预测储层内砂体分布的目的 ,应用效果较好 短句来源      The corrected information shows a good relationship on phase and energy between the synthesized seismic record and the practical seismic information of nearby the well.      用校正后的声波测井资料制作的合成地震记录,与井旁实际地震道的相位、能量具有良好的对应关系。 短句来源   “practical seismic”译为未确定词的双语例句      All the practical seismic risk analysis models are of subjective nature, the difference between them and the real prototypes includes uncertainties of two kinds of different nature, namely, the random error between the practical model and the ideal model or the objective uncertainty.      实际使用中的危险性分析模型均带有主观的性质,其与现实原型之间的差异包含两种性质不同的不确定性,即现实模型与理想模型之间的主观不确定性,和理想模型与现实原型之间的随机误差或客观不确定性。 本文具体讨论对衰减规律作(客观)不确定性校正时主观不确定性的影响问题。 短句来源      A practical seismic design method of structure raised by some light-gauge steel storeys      轻钢增层结构的实用抗震设计方法 短句来源      Practical seismic analysis of reinforced concrete structures with viscoelastic dampers      装设粘弹性阻尼器钢筋混凝土结构抗震实用分析 短句来源      Based on the analysis of the theory of seismic isolation of bridges,a practical seismic isolation design of the fixed bearing of continuous girder bridges is presented,which changes the fixed bearing into the relatively fixed one.      在对桥梁减隔震原理进行分析的基础上 ,依据连续梁桥在地震作用时受力的特点 ,对连续桥梁的固定支座进行了减隔震设计 ,将原来的固定支座改为相对固定 . 短句来源      Practical Seismic Method of Complex Structure in Qaidam Basin      柴达木盆地复杂构造实用地震方法研究 短句来源 更多        查询“practical seismic”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   practical seismic The paper preliminarily gives the more practical seismic space-time repeated evolutive maps, and compares the imitative seismic energy release with the real seismic energy release. 例句来源                This paper deals with in some detail the principle and algorithm of the 2-D wave equation migration suitable for small dip-angle and its realization on small computer. It re-examined in the first place the mathematical and physical foundamental of this method presented by Claerbout, and then, derived a universally valid formula for the determination of reflection, migration from the equivalent mechanism. Several formulae corresponding with certain specific coordinate transformation were worked out attended ...             本文较详细地探讨了小倾角二维波动方程偏移的原理、算法及其在小型计算机上的实现.文章首先简略回顾了克莱鲍特所提出的该方法的数学物理原理,并基于等效机制导出确定归位反射层的统一公式以及在几种具体坐标变换下的相应公式,指出无论对上行波或下行波方程,只要采用适当的归位条件,结果应当是等价的.与采用z变换导出褶积法不同,本文从矩阵角度出发对差分方程的一种隐式解法:快速近似追赶法进行了探讨.与经典追赶法相比,该算法的计算工作量仅为经典追赶法的一半左右,就实用参数而言,误差的量级及衰减速率是完全允许的.同时,简略讨论了这种算法的边界条件影响及处理办法.探讨了在国产小型719计算机上具体实现偏移的计算方案、分段重迭处理和边部拼接的实际技巧,并给出了相应程序的处理参数及有关指标.对上述方法程序,曾就理论模型和生产剖面进行了试算验证.本文最后给出了这方面的部分结果.理论模型包括:数字模型(正弦函数水平子波)和合成模型(15度向斜,30度阶梯的单界面模型).实际资料为海上模拟带记录,包括:较典型的绕射波,回转波以及倾斜层和断层.试算结果充分表明方法和程序是正确的,无论在理论模型和生产剖面上都取得了相当明显的偏移效果.以上工作当时是... 文摘来源          In this paper, the relations between engineering site with seismic intensity I and the corresponding integral frequency N (I) are derived from the following formula:logN(I) = p ?qIBased on this formula, the site seismic intensity possibly happened in future certain years may be predicted. In analysis of seismic intensity of 1881-1980 at three experimental sites in Heze, Qufu and Dezhou of Shandong Province and also the predictive cases during future 100 years at othor 6 major engineering s...             本文简要推导了工程场地遭受地震烈度I与相应积分频次N(I)之间存在如下关系 longN(I)=P-qI (1)由上式可以对场地未来一定年限内可能遭受的地震烈度进行预测。通过分析山东省境内菏泽、曲阜、德州三个试验场地1881—1980年及另外六项重大工程场地未来100年烈度预测实例,结果表明,尽管这些场地的地震活动性背景差异较大,但数学期望既与三个试验场地1881—1980年实际遭受地震烈度情况相符,也与由地震危险性研究综合评定的六项重大工程场地的基本烈度一致。从而认为,场地烈度预测在工程地震中将具有一定的实用意义。 文摘来源          A pulse-compression system composed of a complementary coding signal generator and a corresponding processor has been developed. The working principle of using this system in seismic profiling at sea is described, and the effect of wave modulation on the c. c. signal processing is examined in detail. Computer simulations have confirmed the effectiveness of appling this new approach to practical seismic profiling.             一个为海洋地层探测而设计的互补码信号发生和处理系统已经研制成功。其实施方案是:声源交替地发射一对互补码信号中的两个互补部份,接收机相应地进行回波信号的实时相关处理,然后再在时间上一一对应地把相继两次的相关处理输出实时相加,就得到无旁瓣的终端输出在地层探测图上显示。波浪起伏会对回波到达时间和信号码元间隔进行调制,由此产生的“去互补”和“去相关”效应会降低互补码信号处理的性能。本文着重研究了这个问题,并通过计算机模拟预测了在实际的海洋地层探测中应用互补码脉冲压缩技术的有效性。 文摘来源   << 更多相关文摘         相关查询: practical seismic practical check practical inspection real seismic practical programming practical precipitation practical hatchability practical blackbody lacks practical actual seismic practical molecular  对查询结果不满意

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