SIRT的例句大全

improvement of sirt algorithm in near-surface seismic tomography

一种改进的近地表层析成像SIRT算法

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Design and Implementation of Sirt Online Examination System

石家庄铁路职业技术学院网上考试系统的设计与实现

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shortest path ray tracing is used in the forward step and sirt in the inversion step.

正演使用最短路径法射线追踪，反演采用SIRT方法。

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according to a sirt method, by discussing tomographic results of different cross-well observation system, this article presents some useful criteria of selecting a cross-well observation system in order to obtain some approximate relations among shot interval, trace interval and maximum array length.

本文将根据直射线的SIRT方法，通过不同井间观测系统对成像质量的影响，提出了选择井间观测系统应遵循的某些原则，进而获得炮间距、道间距和最大排列长度间的估算关系。

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the sirt tomography was discussed in detailed in terms of principles and methodology, and validity of algorithm.

从方法原理、算法的有效性、数值模型和野外实际资料的层析反演等方面，对SIRT井间地震层析成像技术进行了系统研究。

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according to the low concentration characteristics of the down-flow bed, sirt method was used for image reconstruction and high quality ect images were obtained.

针对下行床内固体颗粒浓度低的特点，采用了SIRT图像重建算法，得到了高质量的ECT图像。

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both art and sirt belong to iterative method in which the precision of solutions is not completely in positive proportion to iterative times.

ART与SIRT方法属于迭代算法，迭代精度并不完全正比于迭代次数；

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the art and sirt algorithms modified to solve parameter coupling are applied to the simultaneous inversion of velocity-hypocenter in this paper.

本文将层析技术中的ART和SIRT算法应用到地方台网资料的处理，针对震源定位对速度结构反演的影响，将ART和SIRT算法公式进行推广，联合反演速度&震源位置。

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proper selection of the weight function and the filtering threshold based on maximum entropy theory significantly improved the speed and quality of reconstruction with the improved sirt algorithm.

改进后的SIRT算法使重建图像的速度和质量都有了明显的提高。

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in algebra iterative algorithm we found the range of relaxation parameter is very different. the range of relaxation parameter of art was narrower than that of sirt.

在代数迭代算法中，通过模拟图像的重建发现，ART算法和SIRT算法松弛因子的选择有很大的不同，SIRT的松弛因子选择范围偏小，而ART的松弛因子选择范围要宽得多；

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this paper adopts simultaneous iterative reconstruction technique ( sirt) to perform the crosswell tomography based on shortest path tree ( spt) curved ray tracing.

利用基于最短路径树弯曲射线追踪的联合迭代重建层析成像（SIRT）技术进行井间地震层析成像。

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the use of tikhonov regularization theory is to solve the ill-posed problem of image reconstruction and the use of sirt algorithm is to improve the quality of the final reconstructed image.

Tikhonov正则化原理用于克服图像重建过程中的不适定问题，SIRT算法用于提高最终重建图像的质量。

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in the computation, the algebraic reconstruction technique ( art) is adopted and modified. in order to improve the computation stability and convergence of art and sirt algorithms, a reasonable weighting factor is suggested.

计算中采用了代数重建法，并就改善ART和SIRT这两种算法的稳定性及收敛速度，提出了较合理的权因子。

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for inversion algorithms, the extending kalman filtering theory and the iterative reconstruction algorithms including art and sirt are compared by computerized model tests, and the characteristics of three kinds of inversion algorithms are analyzed in theory;

对于反演算法，利用自编程序对迭代重建算法（ART算法和SIRT算法）和扩张Kalman滤波法进行了比较，并从理论上分析了三种算法的特点；

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a reconstruction algorithm named the simultaneous iterative reconstruction technique ( sirt) was introduced to resolve the main problems caused by the soft field effect and the limited number of measurements in electrical capacitance tomography ( ect).

在电容层析成像（ECT）系统中，为克服电容测量值数目有限以及管道内敏感场分布的软场效应，引入了一种同步迭代图像重建技术（SIRT）。

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the gene is known as sir-2 in yeast, sir standing for silent information regulator, and its equivalent in mice and humans is called sirt-1.

这个基因在酵母中称为Sir-1，意思是沉默信息调节子，在人类和白鼠中，与其相应的基因称为SIRT-1。

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sirt model continues providing clear information from its parametric part; it also keeps the robustness of model as nonparametric models do.

半参模型不仅保留了模型中参数部分提供的明确信息，并且半参模型具有类似非参模型的良好稳健性。

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the improved method is called after smoothing sirt arithmetic.

将这种改进的算法称为平滑SIRT算法。

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the new experiment, they say, does not prove that resveratrol negated the effects of a high-calorie diet by activating sirt-1.

他们指出，这些实验并没有证明白藜芦醇是通过激活SIRT-1基因来抑制热量的。

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but today, when there seemed to be no foreign air support in the sirt plain, the rebels were forced to retreat.

然而今天在西尔特平原，他们似乎没有得到外国空中支援，叛军只好被迫后撤。

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