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data sufficient
相关语句
  数据完备性
     It belongs to incomplete-data reconstruction,since the data sufficient condition is not satisfied and exact reconstruction is technically impossible.
     有限角度CT图像重建属于不完全数据重建范畴,由于不满足数据完备性条件,因此不能精确重建。
短句来源
  “data sufficient”译为未确定词的双语例句
     Are patch occupancy data sufficient for inferring metapopulation dynamics using spatially explicit patch occupancy models?
     用空间直观模型是否足以从斑块占据性资料中推断集合种群的动态过程?(英文)
短句来源
     There is no unified LPG metering standard in China, and no basic data sufficient for calculation are available to solve the problem, basic data selected in some codes bublished abroad are introduced to provide parameters and equation for LPG metering.
     鉴于目前国内没有统一的液化石油气数量的计算标准,又缺乏计算的基础数据,为此引用了国外有关标准中的基础数据,提供了液化石油气计量的参数和计算公式。
短句来源
     For grouped data, sufficient conditions are given for the existence of the maximum likelihood estimates of the parameters in Musa-Okumoto and inverse linear models. A mistake in [4] has been pointed out and some applying examples are discussed.
     给出了在分组数据下,M-O模型和逆线性模型中参数的最大似然估计及其存在的充分性条件,指出了[4]中的错误,并且给出了一个实例.
短句来源
     Data for tourism planning are tourism resources in an abstract sense. It's an essential guarantee of highquality tourism planning to have a complete collection of the data, sufficient cognition of their basic characteristics, and a deep exploration of their contents of culture.
     旅游规划资料是抽象化的旅游资源,认识旅游规划资料的基本特征,全面收集资料,深入发掘其文化内涵,是制定高质量旅游规划的重要保证。
短句来源
     The statistical analysis method of test data, sufficient discussions were also given, including the form of cumulative fail function and the parameter estimation method.
     在失效数据的处理方法方面,较为详细地论述、对比了目前常用的几种分布函数的形式以及参数估计方法。
短句来源
  相似匹配句对
     and the data is sufficient.
     且数据资料是涉及面较广的调查数据(调查范围涉及28个省市的393位劳动者)。
短句来源
     DATA
     数据
短句来源
     Finally, sufficient experiment data and scientific proofs were obtained.
     最后,大量的试验数据和科学依据被获得。
短句来源
     data sections.
     data块的DES加密过程.
短句来源
     The necessary and sufficient
     这一结果颇有意义。
短句来源
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  data sufficient
This study makes it possible to give a detailed description of the reaction mechanisms in terms of uni- and bimolecular reactions and provides kinetic data sufficient for computer simulations of aqueous O3/O3- chemistry.
      
When are historical data sufficient for making watershed-level stream fish management and conservation decisions
      
The DT MRI data sufficient for brain fiber tracking in healthy subjects can be obtained in >amp;lt;2?min with a 2-mm slice thickness, 700-s/mm2 b-factor, 6 MPG directions, and no averaging (number of averages=1).
      
For each interpretation, we examine under what conditions data sufficient to demonstrate correctness exists, and whether it can be automatically detected and/or generated.
      
The problem investigated in this paper is that of forecasting employment levels (both raw and seasonally adjusted) in small regions, regions typically lacking data sufficient for the construction of simultaneous equation econometric models.
      
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A synthetic aperture technique for ultrasonic diffraction tomography has recently been proposed by Nahamoo et al.. The technique has two advantages. First, the object to be imaged needs to rotate only once by 90° in order to collect the scattered data sufficient for its reconstruction. Secondly, by taking into account the aperture functions of the transmitting and receiving transducers, the technique, in principle, permits the use of illuminating waves of any type, as opposed to only plane waves. In this...

A synthetic aperture technique for ultrasonic diffraction tomography has recently been proposed by Nahamoo et al.. The technique has two advantages. First, the object to be imaged needs to rotate only once by 90° in order to collect the scattered data sufficient for its reconstruction. Secondly, by taking into account the aperture functions of the transmitting and receiving transducers, the technique, in principle, permits the use of illuminating waves of any type, as opposed to only plane waves. In this paper, we describe a computer implementation for tomography reconstruction of the 'filtered-backpropagation type for the technique. The implementation is interpolation-free, and the reconstruction of an NxxxxxxxxxN image is completed using, mainly, 2N FFT operations. Computer simulations are also included.

Nahamoo和Kak最近提出了一种综合孔径超声衍射断层图象技术。这种技术具有两个优点:一,为了获得重建物体截面声参数图象所需的散射数据,物体仅需作一次旋转;二,由于考虑了发射器和接收器的孔径函数,照射波原理上可采取任意形式而不限于平面波。本文给出此种图象系统图象重建的一种计算机实现方法,此法属于所谓“滤波-反传播”算法一类。它完全不需要内插,对于一幅N×N图象的重建,主要通过2N次FFT运算完成。文中并给出了计算机模拟的结果。

There is no unified LPG metering standard in China, and no basic data sufficient for calculation are available to solve the problem, basic data selected in some codes bublished abroad are introduced to provide parameters and equation for LPG metering. Similar to other oil product metering, it is necessary for the vacumm mass to be converted into atmospheric mass in order to perform the calculation of gas and liquid due to the fact that it is stored in pressurized vessels, for which reason, the mass...

There is no unified LPG metering standard in China, and no basic data sufficient for calculation are available to solve the problem, basic data selected in some codes bublished abroad are introduced to provide parameters and equation for LPG metering. Similar to other oil product metering, it is necessary for the vacumm mass to be converted into atmospheric mass in order to perform the calculation of gas and liquid due to the fact that it is stored in pressurized vessels, for which reason, the mass of the product stored in the tank should be the total sum of liquid mass and that of the saturated gas.In this paper, introduced with emphesis is the method of calculating LPG mass in the light of the measured data about tanks. Calculated out seperately for the LPG both in liquid and gasious phases, the volume, density, standardized volume and the mass in the air. The total sum of liquid phase and that of gas is the mass of LPG. Practical calculation on LPG storage capacity is done based on LPG tanks.

鉴于目前国内没有统一的液化石油气数量的计算标准,又缺乏计算的基础数据,为此引用了国外有关标准中的基础数据,提供了液化石油气计量的参数和计算公式。同其它油品的计量一样,液化石油气数量的计算必须把真空中的质量换算到在大气中的质量,由于液化石油气是储存在压力容器中,呈气液平衡状态,所以它在储罐内的质量应是其液体质量和饱和蒸气质量的总和。着重介绍了根据油罐测量资料进行液化石油气质量的计算方法,分别算出液相和气相中液化石油气的体积、密度、标准体积和在空气中的质量,液相与气相质量相加,即为液化石油气的质量,并以混合液化石油气储罐为例,进行了液化石油气罐储量的计算。

In this paper,the methods and algorithms for image reconstruction from limited-angle are discussed.It belongs to incomplete-data reconstruction,since the data sufficient condition is not satisfied and exact reconstruction is technically impossible.The methods and algorithms can be classified into two categories:transform-based iterative-analytic reconstructions and series expansion-based iterative-algebraic/statistical reconstructions.Meanwhile,image reconstruction from limited-angle is equivalent to inversion...

In this paper,the methods and algorithms for image reconstruction from limited-angle are discussed.It belongs to incomplete-data reconstruction,since the data sufficient condition is not satisfied and exact reconstruction is technically impossible.The methods and algorithms can be classified into two categories:transform-based iterative-analytic reconstructions and series expansion-based iterative-algebraic/statistical reconstructions.Meanwhile,image reconstruction from limited-angle is equivalent to inversion of ill-posed matrix so that proper limitation conditions,a prior knowledge and regularizations play vital roles.

本文主要介绍了处理有限角度CT图像重建的思路和方法。有限角度CT图像重建属于不完全数据重建范畴,由于不满足数据完备性条件,因此不能精确重建。其处理方法大致可以分为两类:基于变换的迭代-解析重建算法和基于级数展开的迭代-代数/统计重建算法。同时,有限角度重建等价于病态矩阵求逆问题,适当的约束条件、先验知识以及正则化因子对提高重建图像质量非常重要。

 
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