特征方向

This text appurtenance flows the character of the cost to talk, the approval steers the analyse to the regulate present condition of the current business logistics cost, aiming at the logistics cost for control amid the existent subject, synthesize the supervision angle and each link of direction of logistics from the business, propose to strengthen the logistics cost for control, the reduction circulates the valid counterplan of the charge, to strengthen the competitive edge.

本文从物流成本的特征谈起，通过对现行企业物流成本的控制现状进行分析，针对物流成本控制中存在的问题，从企业综合管理角度和物流方向各环节，提出加强物流成本控制，减少流通费用的有效对策，以增强竞争优势。

In this thesis, we take the delay r as a bifurcation parameter to investigate the Hopf bifurcation phenomenon in system (1). By analyzing the associated characteristic transcendental equation of system (2), and using the Hopf bifurcation theorem, we obtain one condition for the existence of Hopf bifurcation in system (1). Furthermore, based on the center manifold theorem and the method of normal form, some interesting results about the properties of Hopf bifurcation are obtained, including the direction of Hopf bifurcation and stability of Hopf bifurcating periodic solutions.

我们以时滞T作为分支参数，研究了系统(1)的Hopf分支现象：通过分析系统(2)的特征超越方程，结合利用Hopf分支定理获得了系统(1)的Hopf分支存在的一个条件；利用中心流形定理和正规形方法分析了系统(1)的Hopf分支的性质，包括分支的方向和分支周期解的稳定性。

The experimental results show that this technology can improve the performance of naive Bayes classifier.

2特征降维是文本表示中的一个重要的研究方向，也是本文研究的一个主要内容。

Based on image statistical characteristic, the algorithm can search automatically the boundary start-point using Sobel operator and special template operation, then according to the connection status of every boundary point in its 8-connection neighbor field, seek automatically the search direction, form the whole data collection of a target boundary outline.

该算法依据目标图象特征，在二值图象中利用Sobel算子和特定的模板操作，自适应搜索边界起点；然后，按照每个边界点在其8邻域内的连通情况，自动寻找搜索方向，形成了完整目标边界轮廓数据集。

The height of tree crown and 8 crown breadths in 8 equal-division places vertically were employed to describe the shape of tree crown.

用树冠的高度及对应树冠高度方向8个位置的冠幅等9个数值表示树冠的形状特征。

So, the semantic feature modeling technique has become very important in most CAID systems.

因此，语义特征造型已成为当今CAID系统的主要研究的方向之一。

The coherent electron micro-diffraction from a translation domain boundary perpendicular to the direction of the incident beam was studied. The qualitative and analytical descriptions are given to reveal the phenomena on the breakdown of center symmetry and an appearance of the forbidden diffraction spots.

对垂直电子束方向的畴界的特征，进行了实空间法的准动力学的理论推导，给出了对称性的定性描述，同时用动力学多层法程序对一些上下畴界进行了模拟；对出现的斑点不消光，中心对称的破损，镜面对称的破损等给出了定性的实空间法的动力学的理论的解析描述。

In point of the physical characters,it is better to differentiate the time derivative in the characteristic direction than intime direction.

1.4中针对流体的流动以对流为主的物理特性，采用特征线法去对时间导数项离散，使截断因子比通常的时间方向离散小得多，更好地反映了问题的物理特性。

This paper will give a brief review of Australian children's literature, discuss about the appearance, the development and prosperity of it, analyze the social, political, economic and cultural effect on it, and account for the characteristic and future direction of it.

以澳大利亚的历史发展为脉络，追溯澳大利亚儿童文学的出现、发展和繁荣过程，分析影响澳大利亚儿童文学发展的社会、政治、经济和文化要素，说明各个时期澳大利亚儿童文学的特征及未来的发展方向。

The research on design education in this thesis, included in fine art education of curriculum project in middle school, relate to the significance, characteristic and direction of education, curriculum construction, strategy in course actualization and so on.There are four parts in this thesis.

结合基础美术教育课程改革的不断深化，对在普通中学美术教育中开展的设计方面教育的意义、特征、目标方向、课程建构和课程实施策略等作较深入研究是十分有必要的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。