分层

To solve this problem, based on the concept of graph theory we give a few models and arithmetic designs of virtual backbone in the environment of different application, and propose the corresponding routing mechanism with these virtual backbones. The major achievements are outlined as follows:The state of host's power or the time of host's online plays an important role in keeping stability of a virtual backbone. With a view to this feature, the paper introduces a simple and efficient heuristic algorithm for calculating the virtual backbone by seeking a minimum connected dominating set with maximal weight. The maximality of the weight-based choice of backbone nodes guarantees that the most suitable nodes have been chosen for the role of backbone nodes so that they can properly coordinate all the other nodes and keep stability of the virtual backbone in the network.

为了解决这个问题，本文利用网络图论中的一些理论，在不同的应用环境下给出几种虚拟骨干网的模型、构建及基于稳定性和节能的算法设计，并针对这些骨干网提出相应的分层路由机制，主要研究内容和贡献如下：考虑到主机的功率大小和在线时间长短对虚拟骨干中心的相对稳固性的影响，提出用基于极大权的最小连通支配集模拟虚拟骨干网；并给出其数学模型和相应的启发式算法，确保了性能强的主机担任骨干节点；通过优化规则确保骨干网的极小性，有效地减小了控制分组转发开销；最后进行了仿真验证。

A new model based on the hierarchical MRFhalf tree model is proposed for only one image can be obtained in image segmentation, whose MPM (maximizer of the posterior marginals) algorithm is inferred too.

针对图像分割问题中观测数据有限的情况，提出了一种新的基于离散分层MRF的半树模型，推导出了它的最大后验边缘概率算法。

In this paper, a new region-determined half tree hierarchical MRF model is proposed and its region-determined maximizer of the posteriori marginals algorithm is inferred.

本文提出一种新的基于区域确定的半树分层 MRF 算法，并推导出它的最大后验边缘概率(Maximizer of the posteriori marginal， MPM)算法。

Reduced SQP based on orthonormal bases, orthogonal bases and coordinate bases are studied and compared. With the correction item introduced, the null-space move is adjusted and the reduced SQP based on coordinate bases decomposition is improved.●The key problem of steady-state data processing for RTOPT is studied. A new algorithm of simultaneous strategies for data reconciliation and gross error detection is proposed. Here the objective function that is constructed using maximum likelihood principle and joint distribution function is minimized. Efficient algorithm is developed which exploited the nonlinear lease-square structure of this objective function.

仿真结果表明了算法的有效性；●深入研究了在线优化中的一个关键问题——稳态数据处理问题，用基于组合概率分布的目标函数联立求解粗劣误差检测和数据调和问题；以精馏塔在线优化的数据处理和模型修正为例，提出一种根据模型方程对参数的依赖性进行过程模型分解的分层策略，可以将数据调和和参数估计统一在数据处理的大框架中，为进一步的过程性能分析、操作状况评价以及在线优化提供可靠的基准，具有非常重要的工程应用价值；●将优化命题的形式扩展到更通用的形式。

It shows a stratified mesophyll.

它显示出分层的叶肉组织。

A coding method of dimensions of product was proposed.A method of how to construct dimension correlative relation network was presented,and a network of dimension correlative relation based on main model and main structure of product was constructed.

提出了分层的产品模块划分方法、产品尺寸编码方法，以及模块化产品尺寸约束关系网络的构建方法，建立了基于产品主结构和主模型的产品尺寸约束关系网络。

Therefore, the minimum variance and deviation methodology was introduced, based on which, stratified random sampling technology was used for sample design, and thus making an overall assessment more truly on water quality in distributi.

为此提出以最小方差和偏差的方法论，采用分层随机抽样技术进行样本设计，从而对管网水质进行较为真实的全面评价，同时对影响管网水质的因素进行分析。

Results Statistical significance were observed between malaria incidence and the variation of population number of Anopheles minimus r = 0.89, P

结果 疟疾发病率与微小按蚊数量变化有统计学意义(r=0.89，P.05)，微小按蚊数量变化与分层在1100m海拔以上的村委会种植甘蔗有统计学意义(r=0.78，P.05)。

This provides theoretical foundation to judge a stratified flow or mixed flow in practical engineering problem.

为工程应用中判断燃烧器出口流场分层与否提供了理论依据。

It is very useful for the MMF testing method.

这一公式对J—J混合型分层试验非常有用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。