利用不足

To effectively accomplish image segmentation tasks for noisy image,one improved algorithm for the selection of the local dynamic threshold based on the niched genetic algorithm was proposed.

针对基本遗传算法的一些不足之处，利用小生境的思想，对其进行了一些优化。

But, such a vectorization will bring three potential problems at least:① Some implicit structural or contextual information may be corrupted;②the higher the dimension of input pattern, the more space are needed for storing weight vector;③When the dimension of pattern is very high and the sample size is small, linear classifier tends to be overstrained.

但如此至少会带来3个不足：①原有矩阵模式的空间或结构信息可能会遭到破坏；②由于权向量的维数等于输入模式的维数，当输入模式维数很大时，权值的存储空间相应地会很大；③对于大维数的模式，当样本数不多时，利用线性分类器易导致过拟合。

With the formative way of the fuzzy factor, the method of fuzzy-clustering for pavements sectionalized with units in different lengths is built up, and the clustering level α is explained.

对通常采用的定长1km的做法进行了分析，指出了其不足；进而引进了模糊聚类方法，阐述了其应用思路，给出了模糊相似系数的构造方法，据此利用编网法建立了路段变长划分方法，并对聚类水平α给以解释；最后论述了该法的意义，还进行了实例验证。

In order to remedy this kind of shortage, this paper presents a quick volume rendering method, for the finite element data field of dam seismic response, choices the slicing direction relying on the element surface which normal line has the smallest included angle with the view direction, slices elements to many quadrilaterals, blends the colors of these quadrilaterals by using OpenGL blending technology, and then superimposes all elements one by one.

为了弥补传统体绘制静止画面不能明确判断场值集中部位的不足，提出一种快速体绘制算法，针对大坝地震反应有限元计算数据场，根据每个单元法线与视线夹角最小的表面来选择剖切方向，将单元剖切成多个四边形面后，对单元的绘制顺序进行合理排序，利用OpenGL图形库函数进行颜色融合，再将各个单元依次叠加，从而生成了三维数据场的体绘制图。

In this paper, design is first conducted for the bed of a CNC lathe and Pro/ENGINEER is employed for modeling, then Pro/MECHANICA is used for finite element analysis. It is shown by the result that measures like finite element analysis can be employed for optimization design, thereby avoiding the inherent structural defects and disadvantages.

本文首先对某数控机床的床身进行设计并利用Pro/ENGINEER建模，然后运用Pro/MECHANICA对其进行有限元分析，结果表明：有限元分析等手段可以进行最优化的设计，避免结构存在先天上的缺陷和不足。

How to exactly measure the coal mass of pulverizer in fossil power plant is one of primary causes that the efficiency of milling control is low and the automation is difficult to running. Aiming at the limitation of evidential theory, As the neural network has self-organize, self-learn, collateral distributing manage, strong fault tolerant and robustness, we combined the evidential theory and the neural network and put forward a two-step fusion method.

火电厂中钢球磨煤机筒内存煤量的测量问题一直是制粉控制效率低和自动控制难以投入运行的主要原因之一，针对D-S 证据理论存在的不足，而利用神经网络具有的自组织、自学习、并行分布处理、高度容错性和鲁棒性的特点，本文提出了一种将证据理论与神经网络相结合的数据融合方法，并将其用于解决球磨机存煤量的测量问题。

The deficiency in traditional method for calculating heat transfer quantity in the wall of wood drying kiln was pointed out,and the heat transfer quantity in the wall of wood drying kiln was calculated by the shape factor method.

指出了木材干燥窑壳体传热量的传统计算方法中的不足，并利用形状因子法来分析计算木材干燥窑壳体的传热量。

Our tool, which is based on IBM Aglets System, provides more services including architecture analysis tool and system validation tool. Users are able to increase agent system development performance and quality with our tool.

本工具架构於IBM分司 Aglets 软体代理人平台系统上 [1][19]，利用此工具确可弥补 Aglets 系统在系统架构与系统验证能力之不足，并可提升代理人程式发展效率与品质。

In order to overcome the above-mentioned gaps of the Client/Server computing model of the current GIS, this research introduces Agent technology originated from Artificial Intelligence to GIS. The thesis proposes a new kind of Agent - GeoAgent and expatiates upon its characteristics, behaviors and architecture of corresponding GeoAgent System. A GeoAgent prototype system has been implemented, based on IBM Agent Software Development Kit Aglets. And then, this research proposes GeoAgent-based Geospatial Information Services, followed by detailed theoretical analysis.

针对现有地理信息系统在分布式计算模式方面的不足，本文引入了人工智能领域中Agent的理念，提出了GeoAgent的概念；系统地阐述了GeoAgent的特点、行为、优势和结构，以及GeoAgent系统的体系结构；利用IBM的开发平台Aglets，设计并实现了相应的系统原型；在此基础上，本文提出了基于GeoAgent的空间信息服务的理念，并详细分析了这种空间信息服务的特点和优势。

In view of the peaked and fat-tailed characteristics of financial return data distribution and its effect of clustering fluctuation and especially the "leverage effect" of fluctuation on VaR estimates and some efficiencies when estimating VaR with various assumptions of return data distribution,a semi-parameter approach based on EGARCH-VaR model is developed.

在综合考虑了金融收益数据分布的尖峰厚尾特征及其波动集群性，尤其是其波动的&杠杆效应&对VaR估计的影响以及各种假定收益率分布在计算风险价值时存在不足的基础上，提出了基于EGARCH-VaR的半参数方法，并且与正态分布和t分布假设下的GARCH模型的VaR计量方法进行比较，通过实证分析，并利用后验测试，表明基于EGARCH-VaR的半参数方法对风险价值的测度优于正态分布和t分布假设下GARCH模型的VaR计量方法。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。