Docker网络通信研究与实现

Docker自开源以来,立刻引起人们极大的兴趣,作为轻量级的虚拟化容器,Docker被应用在越来越来多的场景中.无论是用于应用快速打包和一键部署、实现自动化测试和持续集成、微服务还是用于创建轻量级的PASS环境,Docker都展现出极大的前景.近年来,越来越多的公司利用Docker来解决问题,催生了许多基于Docker的服务和创业公司.随着云计算、大数据的发展以及微服务架构理念的提出,Docker应用的规模越来越大,Docker容器的数量越来越大,如何解决Docker容器间的单主机通信、跨主机通信、跨网通信问题,是我们不可避免的.本文主要研究Docker容器间的通信,Docker的libnetwork内置5中驱动模式用于解决通信问题,但是都存在一定的局限性.经过实验得出一种基于GRE协议的隧道技术,可以有效解决Docker容器间跨子网通信问题,且配置简单.     

虚拟容器算法在卷烟自动分拣系统中应用

针对卷烟自动分拣系统中订单排列无规律,分拣效率低的现状,提出基于"虚拟容器"思想的自动分拣控制算法,通过建立有序排列的"虚拟区域"和"虚拟线框",以时间为依据建立打烟时间矩阵,并在LabVIEW 2014平台调取郑州市烟草公司实际订单进行仿真,仿真结果表明,虚拟容器算法可以有效地提高订单分拣的效率和准确性,并实现卷烟分拣系统的智能化控制。     

云计算虚拟化技术的发展与趋势

云计算虚拟机技术在融合计算机多方面技术的同时,对信息的搜集和处理都有很大的改善,然而,单一性问题制约着其发展。容器数据处理技术对云计算虚拟化信息处理技术的完善有着巨大的推动作用。     

采用混合铝箔编制而成的高密度电磁屏蔽层高度绝缘的电介质隔绝,保证信号传输最纯度

有很多玩家常常会觉得，好的器材用好的线材是不会有错的。然而，这种看法也许不是完全正确的。虽然这样的原则有其合理性，然而，正如我们已经知道的那样。与器材相类似，线材也有着自身的性格与特质。因此，假如与所要搭配的器材在类型上不吻合的话，那么，所谓的“好的器材用好的线材是不会有错的”这个观点就不一定能够获得正确的结果。     

Magnetically assisted gas-solid fluidization in a tapered vessel： Part II Dimensionless bed expansion scaling

The article presents an effort to create dimensionless scaling correlations of the overall bed porosity in the case of magnetically assisted fluidization in a tapered vessel with external transverse magnetic field. This is a stand of portion of new branch in the magnetically assisted fluidization recently created concerning employment of tapered vessels. Dimensional analysis based on ＂pressure transform＂ of the initial set of variables and involving the magnetic granular Bond number has been applied to develop scaling relationships of dimensionless groups representing ratios of pressures created by the fluid flow, gravity and the magnetic field over an elementary volume of the fluidized bed. Special attention has been paid on the existing data correlations developed for non-magnetic beds and the links to the new ones especially developed for tapered magnetic counterparts. A special dimensionless variable Xp = （Ar△Dbt）1/3√RgMQ combining Archimedes and Rosensweig numbers has been conceived for porosity correlation. Data correlations have been performed by power-law, exponential decay and asymptotic functions with analysis of their adequacies and accuracies of approximation.     

Morphological study of the localized growth of materials in dielectric barrier discharge

The localized growth of materials has been realized in a dielectric barrier discharge reactor in the mixture of acetylene and argon in previous work. In this paper, the morphology of the materials synthesized in the process is studied. The results indicate that the polymer's structure consists of three layers. The layer near the substrate is homogeneous with thickness of several micrometres; the middle layer is composed of dense bulges with height of about more than 10μm in average. The distance between two neighbouring bulges is about 230μm; the top layer is made up of a few large columns with the height up to 2mm, and with the average distance of about 3.5mm. The growth of the three layers corresponds to three types of discharge. The discharge mechanism is analysed through studying the morphology of the polymer. It can be deduced from the morphology that the first and second discharge phases should belong to the Townsend breakdown, and the last discharge phase should be explained on the basis of the streamer mechanism.     

Surface waves in a vertically excited circular cylindrical container

The nonlinear free surface amplitude equation, which has been derived from the inviscid fluid by solving the potential equation of water waves with a singular perturbation theory in a vertically oscillating rigid circular cylinder, is investigated successively in the fourth-order Runge－Kutta approach with an equivalent time-step. Computational results include the evolution of the amplitude with time, the characteristics of phase plane determined by the real and imaginary parts of the amplitude, the single-mode selection rules of the surface waves in different forced frequencies, contours of free surface displacement and corresponding three-dimensional evolution of surface waves, etc. In addition, the comparison of the surface wave modes is made between theoretical calculations and experimental measurements, and the results are reasonable although there are some differences in the forced frequency.     

电介质的极化机制与介电常量的分析

在简介电介质极化机制的基础上,通过Lorentz振子模型及其修正,分析电介南的极化机制与介电常量,比较分析了一些电介质介常量有规律的变化,分析了一些电介质介电常量与光频介电常量相等的微观机制。     

热压电介质中的渗透型周期裂纹问题

利用Stroh公式,研究了含共线周期裂纹热的压电介质的广义二维问题。该工作有两个特征：一是裂纹被建模为具有渗透表面的缝隙,并假设为跨越上下表面时,电场的切向分量和电位移的法向分量是连续的;另一个特征是,机－电载荷和热载荷被假设作用在无限远处,而不是在裂纹表面。基于这两个假设,我们获得了有关场强因子,以及裂纹内电场的相当简洁的表达式。结果表明：①在裂纹内电场是线性变化的,②电位移的奇异性总是取决于应力的奇异性.③所有场的奇异性与所加的电载荷无关。     

密封容器组合壳自由振动的精确解

给出了一类密封容器组合壳自由振动问题的精确解,基于Love经典薄壳理论,导出了具有任意经线形状的旋转壳体在轴对称振动时的基本方程,组合壳结构中球壳与柱壳的连接条件是通过连接处的变形连续性和内力平衡关系得出的。问题的数学模型被归结为常微分方程组在球壳和 壳两个区间上的特征值问题。振动模态函数是由Legendre和三角函数构造出来,并且得到了精确的频率方程。所有的计算都是在Maple程序下运行的,无论是精确的符号运算还是具有所需有效数学精度的数值计算,都表明该文所编译的Maple程序是简单而有效的。固有频率的数值结果同文献中有限元法和其它数值方法的结果作了比较。作为一个标准,该文给出的精确解对于检验各种近似方法的精密度是有价值的。