查询词典 parallel

This paper briefly illustrates the construction of multifunctional roller refiner and expounds the principles and working properties of the parallel,joggling and parallel spinning double helix rollers in pulp refining.

要本文简述了辊式多功能磨浆机的结构；探讨了平行、啮合、同向旋转双螺旋辊磨解浆料的机理和工作特征；列举了它在制浆造纸工业中的应用实例。

So far there is no legislation to regulate it in China, therefore how to define parallel import by law and how to deal with the disputes between dealers of parallel important and owners of intellectual property are significant and difficult problems which the legal researchers, legislators and judiciaries are facing.

目前我国还没有这方面的法律规定，因此，如何认定平行进口问题，解决平行进口商与知识产权所有人之间的纠纷成为学界、立法与司法部门面临的亟待解决的难题。

According to this idea , Sun Mei set up systematic view of history of the parallel prose, and made most penetrating analysis and review to a lot of writer of the parallel prose.

基于这一理念，他建立了较为系统的骈文史观，并对许多骈文作家作品作出了极为精辟的分析、评论。

Then a new method named parallel recomputing based fault tolerant parallel algorithm is proposed. The authors present the design of PRBFTPA for matrix LU decomposition, and evaluate them by experiments on a cluster system and compare them with the method of checkpointing.

针对许多计算密集型任务中的矩阵LU分解设计了相应的基于并行复算的容错并行算法，并对设计的矩阵LU分解的容错并行算法的性能进行了评估并与checkpointing方法进行了对比。

The main academic productions of this thesis are:(1) the parallel algorithms of computing permanents and permanental polynomials of sparse matrices are designed and implemented;(2) an efficient balancing straggles of parallel load is proposed using the theory of scheduling;(3) valuable data for the research of the molecule structure of fullerenes are obtained;(4) the multi-dimensional stable marriage model and its numerical methods give a new path to solve the clustering problems.

本文的主要学术贡献是：(1)设计并实现了稀疏矩阵积和式与积和多项式的并行算法；(2)利用排序理论给出了有效的负载平衡策略；(3)为富勒烯分子结构的研究提供了有价值的数据支持；(4)多维稳定婚姻模型及计算方法，为聚类问题的求解提供了新途径。

In order to improve the performance of parallel ant colony algorithms, an adaptive parallel ant colony algorithm with the information exchange based on super vertexes of a certain characteristic is proposed.

通过分析影响并行蚁群算法性能的诸多因素，以提高算法效率减少通信量为主旨，提出了1种基于超顶点交流策略的并行蚁群算法。

On the basement of conventional direct fan-beam reconstruction, this paper gives a newly improved algorithm-"fast filtering-backprojection". This method utilizes the symmetrical circle geometry to sample projection data, and reconstructs image on the Polarcoordinate firstly, then translates this reconstructed image onto the cartesian coordinate system with two interpolating operations so that the computer can show the result image on the VGA screen. This algorithm rebates the calculating backprojection greatly, and shortens a few times of reconstructing time than same kinds of means. With the size of image enlarging, the reconstructing time abates with 2 exponent times. In addition, according to the idea of parallel-beam, we rearrange the fan-beams and reconstruct image using parallel-beam method fastly. The rearranging constraint condition is given here.

本文首先在传统的扇束直接重建方法的基础上，提出了一个改进的快速滤波反投影重建算法，它利用旋转采集投影数据的圆周对称的几何关系，先在极坐标系统内进行图象的重建，然后通过两次内插运算再将图象转换到计算机显示方式下的笛卡尔坐标系中去，该方法将以往的直接重建方法中的反投影时所需的运算大大降低，并将重建时间比同类方法缩短了几倍，而且随着重建图象的尺寸的增大，重建时间以2的指数次方倍相对缩短，并获得了较好质量的重建图象；另外，又根据平行束投影重建图象的思想，对扇形射束进行了重排，然后利用平行束重建图象的方法进行扇束的重建，并推导了&扇束重排重建图象&方法的约束条件。

Nowadays,performance analysis and profiling for parallel programs are quite critical with the development of large scale parallel computing,and performance data collecting is the basis of this job.

目前，随着大规模并行计算的高速发展，并行程序性能分析与建模的地位日益重要，而并行程序性能数据的采集是进行性能分析的基础。

In large scale parallel computing systems,a high-performance scalable MPI implementation is crucial for parallel applications in order to exploit the massive parallelism in these systems effectively.

在大规模并行计算系统中，为了更有效地利用系统的并行性，实现一个高性能、可扩展的MPI系统是非常重要的。

The wave velocity ratio vertical to the stratum of the rock samples is usually less than that in parallel direction, and the relative increment of wave velocity ratio between the vertical direction and the parallel direction decreases as the wave velocity ratio in vertical direction gradually increases.

波速比的各向异性特征主要表现为垂直层理方向上的波速比普遍小于平行层理方向，且两方向波速比的相对增量还随着垂直层理方向上的波速比的增大而逐步减小。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。