查询词典 inversion problem

The combined datum correction of tomography inversion with wavefield continuation is beneficial for solving static correction problem under complex near surface condition.

近地表层析反演与波场延拓联合基准面校正的方法有利于解决复杂近地表条件下地震资料的静校正问题。

Identification and forecasting for igneous rock is one hard problem of exploration activity, because it has extreme aeolotropism. By firstly synthetically utilizing seismic analysis, well logging restricted inversion, core well core and electric log analysis method and so on, the igneous rock reservoir of Gaoqing oilfield is effectively identified and divided into one to four four phases according to igneous rock erupting phase.

由于火成岩具有极强的非均质性，对其识别与预测是油气勘探的难题之一，首次综合使用地震分析、测井约束反演、取心井岩心与电测曲线分析等技术和方法，有效地识别了高青油田火成岩储集体，并根据火成岩喷发期次，将高青油田孔店组火成岩储集体分为1、2、3、4期。

On this basis, exploring the method and feasibility to extract terrestrial parameters from hyperspectral and multiangular data. On the inverse problem, we analyzed the error source of model-based inversion, and pointed out the effect of a priori information, merit function, inverse algorithm and strategy on the inverse result.

本文在综合考虑各种算法的优缺点基础上，将基于实编码的遗传算法引入遥感模型反演中，并通过与确定性搜索算法相比较，肯定了遗传算法在解决非线性反演问题中的作用。

Deconvolution and inversion of receiver function is a basic problem for receiver function study.

接收函数的提取和反演是接收函数研究的核心问题。

To cope with this problem, we used gamma inversion to rule out the low velocity anomalies that caused by incr...

针对这种情况，采用伽马反演，来排除因泥质含量增加形成的低速异常现象，再结合速度反演，较准确地预测出了双家坝地区飞仙关组鲕滩的发育情况，落实了其分布范围，为下一步勘探提供了可靠的资料。

As a concrete example for the 3D timelapse seismic problem, a localized inversion algorithm is designed based on the continuous and recursive methods.

以三维时间推移地震为例，在连续型及逐次递归算法的基础上构造了快速的局域化反演算法。

In Chapter 1, two solutions to the elliptical boundary value problem have been constructed through a monotone iterative process, and they might be identical. In Chapter 2, the author expresses the local solution to the parabolic initial boundary value problem taking advantage of Green function. In Chapter 3, the asymptotic solution to the initial value problem of Duffing equation is obtained and the method for finding the approximate solution to the inverse problem is put forward.This paper is planned with a view to the author's research means.

从研究结果看：第一章通过单调迭代过程构造出椭圆型方程的边值问题的两个解，并且指出二者可能是同一个解；第二章利用格林函数给出了抛物型方程的初边值问题的局部解的解析表达式；第三章中，先对Duffing方程的初值问题写出解的渐近展开式，再对其反问题提出一种求近似解的方法。

In this paper,the following assignment problem is considered:there are persons to be assigned to do jobs,where,every person who is assigned to do one job,meanwhile,every job demands one person to do;then,this assignment problem is called standard assignment problem,furthermore,it is called general assignment problem.

考虑了指派问题：有m项工作和n个人。若m与n是相同的，并且每一项工作只能由一个人来做；同时，每一个人只能做一项工作；符合这一条件的指派问题称为标准指派问题；若m与n不相同，则称为非标准指派问题。

The invention discloses a ternary alloy hyperacoustic motor frictional material of the fire resistance resin modified polyphenyl ester, which solves the low friction coefficient problem, the low impact strength problem, the low abradability problem and the bad processability problem of the prior hyperacoustic motor.

耐高温树脂改性聚苯酯三元合金超声马达摩擦材料，它涉及一种聚苯酯基超声马达的摩擦材料。本发明解决了现有超声马达摩擦材料存在摩擦系数小、冲击强度低、耐磨性能达不到要求，以及加工性能差等缺点。

Analyzed the similarity between scheme solving problem and traveling salesman problem, the scheme solving problem for conceptual design is transformed into an optimal path problem in combinatorial optimization, where the dynamic programming based solution space model and the longest path based optimization model are developed.

摘要通过分析概念设计方案求解问题与旅行商问题的相似性，将方案求解问题转化为组合优化的最优路径问题，建立了基于动态规划的解空间模型和基于最长路径的优化模型。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。