An inversive research method was proposed through analyzing the complicated changing features of permeability of coal seam and the problems existing in actual measurement. 分析了煤层渗透率的复杂变化特点和实际测量上存在的问题,提出其反演方法。
Then, briefly introduced forward and inversive pseudo-spectrum algorithm; 然后简要介绍了正演伪谱法算法;
The study seems to indicate that the oxygen inversive diffusion from interior of body to environment after RD has two phases which are related with the time of effective consciousness and physiological effects. 研究表明,高空迅速减压时氧自体内到体外的反向弥散分两个时相,它们与减压瞬间的生理效应和有效意识时间有密切的关系。
Since Born-approximate singular inversive algorithm only uses the linear item of inverse scattering sequence, that adapts itself only to the inversion of the medium having small disturbance. 由于Born近似奇性反演算法仅利用了逆散射序列的线性项,因此只能适用于小扰动量介质的反演。
The structure style of fault zone mainly includes four kinds: compressive structure, extensive structure, inversive structure and strike-slip structure. 断裂带的构造样式主要有挤压构造、伸展构造、反转构造和走滑构造四大类。
Strong P-congruences on weakly P-inversive semigroups ⅱ 弱P-反演半群上的强P-同余Ⅱ
The inversive model of pore and throat volume distribution based on physical property data for reservoir rock 储层岩石基于物性参数的孔喉体积分布反演模型
The solution of inversive potential problems by the boundary element method 用边界元方法求解势论的反问题
Inversive Study on the Changing Law of Coal Seam Permeability 煤层透气性变化规律的反演研究
Drawing a Geological Structure Map by an Iterative Inversive Interpolation Method 应用迭代反演内插算法绘制地质构造图
Then inversive prediction filtering is taken to remove noises. 为此本文采用反演预测滤波方法来消除噪声,即根据反演预测滤波求出信号估计,再按此信号估计生成新的滤波因子。
The Inversive Property of Projective Correspondence Ranges of Points 一维射影对应点列的反演性
The inversive potential problems and its solution by the boundary element method is proposed in the lecture, which is proved in solving some examples of inversive heat transfer questions. 本文提出了势论反问题以及用边界元法求解势论反问题的方法,并通过算例验证了方法的可行性。
On the contrary, direct inversion of shear modulus Δμ/ μ and fluid factor Δ(μρ)/(μρ) not only has high precision but also has stable inversive results, being adaptable to AVO parameters inversion of P-SV converted wave and multi-wave. 若直接反演剪切模量Δμ/μ和Δ(μρ)/(μρ)型流体因子,则不仅具有很高的精度,而且反演结果稳定,适用于P-SV转换波和多波AVO参数反演。
A New Inversive Technique of Well Logs to Complex Lithology and Porosity 复杂岩性和孔隙度的测井反演新技术
Conclusion: Inversive U wave is a more useful and specific method in diagnosing cardiopathy compared with abnormal T wave. 结论:以上结果提示,U波倒置对诊断冠心病可能比T波异常更具有特异性。
Utility of inversive changing technique in CT and X-ray equipments CT,X线机中逆变技术的应用
This paper is on the problem of the inversive adjustment to the square matrix of the consumed coefficients according to the productive vector, a special 、 popular and suitable way has been found out and the square matrix can be adjusted optimally. 本文讨论由产综(或正持征向量)逆向调整消耗系数方阵的问题,得到了一种普适的特殊方法,并可进行优化。
The results of the weighted stack inversion in different theoretical models showed that the larger errors existed in directly inversive velocity, density and wave impedance of P-and S-wave when using P-SV converted wave AVO for weighted stack inversion; 不同理论模型的加权叠加反演结果表明,在利用P-SV转换波AVO进行加权叠加反演时,直接反演纵横波速度、密度以及波阻抗信息具有较大的误差;
The inversive calculation result showed that the permeability coefficient of coal seam and its changing condition can be determined by seam gas Pressure. 算例反演的结果表明,利用反演方法能够通过煤层瓦斯压力确定煤层的透气性系数及其变化状况。
Results: The incidence of angina pectoris with inversive U wave was 76.2% ( 16/ 21), and was higher than that without inversive U wave ( 43/ 129, 33.3%)( P < 0.01). 结果:有U波倒置患者心绞痛的发生率为76.2%(16/21例),高于无U波倒置者的33.3%(43/129例)(P<0.01)。
By using inversive congruential method, this paper researches the algorithm to generate pseudo-random numbers and the general principle for compound inversive congruential method. 本文研究了逆同余产生伪随机数的方法,给出了一般的组合逆同余法算法。
Inversive Deduction Design of Optimal Track Control in Electro hydraulic Force Servo System 电液力伺服最优跟踪系统的逆推法设计
A Study of Radio Inversive Method of Ionospheric Isorefractive Index Surface Motion Velocity Profile 电离层等折射指数面速度剖面的无线电反演研究
Then the process model of normal and inversive optimization is put forward, and moreover its macroscopical and microcosmic structures are investigated. Products For the test and maintenace of G. 针对产品制造任务性能参数的优化问题,提出正向优化与逆向优化过程模型,分析双向优化结构的宏观与微观特征。
Currently used seismic inversive technology mostly is the way controlled by seismic dominant frequency that makes the potential of relatively higher frequency and lower frequency in useful band without full utilization, so that the inversive results are unsatisfactory. 现今常用的地震反演技术多以地震主频控制反演结果,地震资料有效频带中的相对高频和相对低频的潜力没有充分利用,反演结果也不尽如人意。
To derive seismic ource function using numerical inversive GR method is a new way to obtain source function. 应用数值反演的GR方法获得地震勘探中的震源函数,是求取震源函数的一种新途径。
The effects on physiology and oxygen inversive diffusion following the rapid decompression at high altitudes, with various oxygen-rich supplies before decompression simulating the range of gas from the molecular sieve oxygen generating system ( MSOGS) were observed. 通过模拟分子筛制氧系统供气范围,即减压前富氧气体的高空迅速减压实验,观察对机体的生理影响和氧反向弥散的变化。
Frequency-divided inversion is also the high-resolution non-linear inversive method without wavelet detection and without initial model. 分频反演也是一种无子波提取、无初始模型的高分辨率非线性反演方法。
Inversive Research on Methane Flowing Parameters in Coal Bed 煤层瓦斯流动参数的反演研究