查询词典 automatic computing

Problems of accurately computing algebraically exact solutions in the presence of rounding errors and of computing discrete approximations of solutions which are defined on the continuum.

在面对由连续性定义的误差与解的离散近似计算时代数学上的精确求解问题。

Chapter three pays attention to three anharmonic properties, bulk modulus , Grüneisen parameter and thermal expansion coefficient along with their higher order quantity, which is widely interesting to people. Starting from the analysis of quantities of experimental data, we propose some new computing model and formulas on the volume and pressure dependence of, and , i.e.,, and. Comparisons with experimental data make clear that these new computing formulas are all in agreement with experiment and improve the former works in different degree, so they have good validity and reliability.

在分析大量实验数据的基础上，提出了关于这三个非谐性质对体积压强依赖性的新计算模型和公式，即、、，和实验数据相比表明，新的计算公式得到的结果和实验吻合很好，均在不同程度上改进了前人的工作，具有较好的实用价值。

In this thesis, we focus mainly on exploring index-based skyline algorithms. Taking full use of indexing technology, we study skyline computing in any subspace of high dimensional dataset, the problem of sampling the large-size skyline and skyline computing in categorial database.

利用索引技术，分别解决了高维数据集中任意子空间上的skyline计算问题，查询数据集上skyline点输出数目过多的问题以及分类属性数据集上如何高效、动态地算出其skyline的问题。

Especially,it is highly parallel.After a brief introduction on implementation of DNA computing,this paper discusses DNA computing and correlational mathematics models.

该文在简要介绍DNA计算的实施方法后，探讨了DNA计算及其相关的数学模型，指出了DNA计算的优点及存在的问题。

Bt the same time, the concept of utility computing became a focus of IT design and operations. Bs Nick Darr observed in 你好s book The Big Switch, computing services infrastructure was beginning to parallel the development of electricity as a utility. Wouldn't it be great if you could purchase compute resources, on demand, only paying for what you need, when you need it?

同时，作用计较的观点成为IT预设和操作的焦点正如Nick Darr在The Big Switch一书中所说，计较服务基础设施已起头成长成象电力公用设施同样要是你能仅在需要的时辰采办计较资源，支付你所用的部分，这莫非不是一件很正确的工作吗？

Bt the same time, the concept of utility computing became a focus of IT design and operations. Bs Nick Darr observed in hellos book The Big Switch, computing services infrastructure was beginning to parallel the development of electricity as a utility. Wouldn't it be great if you could purchase compute resources, on demand, only paying for what you need, when you need it?

同时，作用计算的观点成为IT预设和操作的焦点正如Nick Darr在The Big Switch一书中所说，计算办事根蒂根基举措措施已起头成长成象电力公用举措措施一样要是你能仅在需要的时辰采办计算资源，付出你所用的部分，这莫非不是一件很正确的工作吗？

The horizontal and vertical first derivatives of magnetic anomalies of an infinite cylinder are calculated by the cosine transform method, in which the maximum errors are -0.28 nT/m and 0.47nT/m, respectively and the percent errors are generally within -3.57%~3.27% and -1.94%~1.88%, respectively except several data of the boundary and part are bigger because of remains of Gibbus effect. The calculating curve and theoretical curve are approximately coincident, and there is no influence by effective magnetic dip angle in computing. But the errors with the Fourier transform method are -10.62nT/m and 14.42nT/m, there is large departure between the calculating curve and theoretical curve and evident influence by effective magnetic dip angle in computing.

利用余弦变换法计算的无限长水平圆柱体磁异常水平和垂向一阶导数的最大误差分别为-0.28nT/m、0.47nT/m；水平一阶导数的误差一般在-3.57%~3.27%之间，垂向一阶导数的误差一般在-1.94%~1.88%之间；计算的磁异常一阶导数值与理论值大致重合，而且不受有效磁化倾角的影响而Fourier变换法计算的水平和垂向一阶导数最大误差分别为-10.62nT/m、14.42nT/m，计算曲线与理论曲线偏离大，受磁化倾角的影响也较大。

To gain an ideal algorithm, based on the theories of rough set and granular computing, the basic algorithms of indiscernibility relation and computing positive region were designed, in which dynamic SQL was used to directly get the sorted object sets so that the sort algorithm was left out.

摘 要：为获取高效算法，结合Rough集和粒计算理论，基于知识颗粒设计出获取等价类的算法及计算正区域的等价算法，使用动态SQL语句直接获取已排序的对象集，省略类似算法必需的排序算法，降低了实现的复杂度。

The application of grid computing technology in protection system is discussed in this paper,including the basic concept of grid computing and its characteristics as well as its application prospect in wide area back-up prote.

介绍了一种网格环境中的广域后备专家系统，它以保证整个输电线网络的稳定与安全为基础，从广域角度实现线路保护的目的。

Discernibility system can be used to unify the problems of computing reduct set in information system and computing relative reduct set in decision table.

区分系统的缩减集计算统一了粗糙集合理论中信息系统的缩减集的计算问题和决策表的相对缩减集的计算问题。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。