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The main contents of the course include: Traditional ship design method based on empirical classification rules; Modern ship design method based on the first principles approach. Structural loads, loads combinations and loading criteria; Ship structural components configuration and arrangements; Ship initial scantling calculation based on the new rules; Ship total strength assessment including yielding, buckling and ultimate strength analysis.

主要内容包括:基于传统的船级社半经验公式的船舶设计方法;基于第一原理的现代结构设计方法;结构设计载荷,载荷组合和载荷衡准;结构部件选型和布置;基于新规范的结构构件初始尺寸计算;船舶结构整体强度分析,包括:屈服,失稳和终极强度分析。

To effectively reconfigure General Bill of Material, reconfiguration process of GBOM based on data-mining was proposed. BOM instances were represented by the weighted unordered tree graph generally, and the algorithm of similarity measurement between two similar BOM instances were presented based on the minimum weighted symmetric difference. In terms of the results of the similarity measurement, all the typical BOM instances were clustered based on the k-Means clustering method.

为有效地重构新型的通用物料清单,提出了基于数据挖掘的通用物料清单重构过程,运用赋权无序树形图表示产品物料清单实例,基于最小赋权对称相异度给出了相似物料清单实例之间的相似度度量算法;基于物料清单实例之间的相似度度量结果,采用k-Means聚类方法对物料清单实例进行聚类。

He modeling is the thin walled column model in which the shear walls connected each other in horizontal are regarded as a thin walled column, and the part between openings in vertical are regarded as a tie beam. The programs based on this kind of model is TAT. Two kinds of super element generalized- wall-element and elastic-slab-element are defined, which are condensed from shell element based on the theory of sub-structure, SATWE is based on the model.

AT采用薄壁柱模型,将同一层彼此相连的剪力墙墙肢作为一个薄壁杆件单元,把上下层剪力墙洞口间的部分作为连系梁单元;SATWE引入两种超单元:通用墙元和弹性楼板单元,采用子结构理论用在壳元基础上凝聚而成的墙元模拟剪力墙。

The application area of net flow inspection is introduced in this paper. The three kinds of flow inspection technologies such as inspection technology based on net flow total mirror, inspection technology based on SNMP and inspection technology based on Netflow are analyzed and compared in this paper.

本文对流量监测的应用范围进行了介绍,并对目前所流行的三种流量监测技术:基于网络流量全镜像的监测技术、基于SNMP的监测技术,基于Netflow的监测技术进行了分析与对比,通过分析对比,指出了这三种监测技术的特点及适用范围。

This article studies based on the shortest path city public transportation intelligence inquiry system, first aims at the city public transportation line network chart establishment mathematical model; Then research based on above mathematical model database creation method and corresponding algorithm design, with take Dijkstra algorithm as foundation, based on path shortest public transportation line inquiry algorithm, and through simple analog data confirmation algorithm validity; Finally brief introduction according to this thought design realization city public transportation intelligence inquiry system.

研究基于最短道路的城市公交智能查询系统,首先针对城市公交线路网络图建立数学模型;然后研究基于上述数学模型的数据库建立方法和相应的算法设计,和以Dijkstra算法为基础的、基于道路最短的公交线路查询算法,并通过简单模拟数据验证算法的有效性;最后简要介绍按此思想设计实现的城市公交智能查询系统。

Based on the review of progress in parametric uncertainty nonlinear system control theory, it is noticed that design methods based on feedback linearization are the main parts and the author proposes a robust controller design method for a nonlinear parametrization uncertain system satisfying feedback linearization and triangularity conditions,and a robust output tracking controller for a nonlinear parametrization uncertain system based on the identification of uncertain parameters.

在对该领域研究进展分析的基础上,针对满足三角形条件和反馈线性化条件的非线性参数化不确定系统提出了一种鲁棒控制器设计方法,并针对非线性参数化不确定系统提出了基于参数识别的鲁棒输出跟踪器的设计方法。后者是本文为飞机防滑刹车系统设计输出跟踪器的理论基础,同时也是本文的创新点之一。在对结合力产生本质讨论的基础上,分析了滑水现象产生的原因和预防措施。

According to the different face representation mode, there are four identifying methods. They are the mode identifying method based on geometry feature vector, the feature vector identifying method based on algebra feature vector, the facial feature extraction method based on NN and design method of sorter.

根据表征方式的不同,人脸识别方法有:基于层次聚类的几何特征矢量模式识别法、基于代数特征矢量的特征矢量识别法、基于神经网络的人脸特征提取和分类器设计法。

Three classical prototypes of what-if analysis based on rules,what-if analysis based on delta table and what-if analysis based on incremental CUBE maintaining are analyzed.

给出了基于内存数据库的delta表模式的what-if分析算法和一种新的CUBE维护算法。

These antennas can cover GSM900/DCS/PCS/UMTS operation. In the chapter 2, the antenna is designed based on the concept of monopole antenna. Furthermore, the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching. In addition, to raise distance between radiation plane and ground will avoid capacitative effect effectually. In the chapter 3, the antenna is designed based on the concept of planar inverted-F antenna. Furthermore, that the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching is similar to chapter 2. But there is a difference in them. We can choose the short position to change input impedance at this structure. In the chapter 4, the antenna is designed based on the concept of planar inverted-F antenna which takes coupled-fed. It will produce the first mode and high-order mode near the frequency, 900MHz. The feature of this type is to reduce the volume effectually. This antenna can not only cover GSM900/DCS/PCS/UMTS operation but maintain good radiation efficiency. Finally, we will compare three antennas, and develop procedure with industrial view, and propose the prospect of the GSM/GPRS antenna in PND, as a conclusion.

在第二章中,我们使用单极天线设计概念,使用双路径架构并於末端耦合来对天线阻抗做匹配,产生涵盖GSM900/DCS/PCS/UMTS四频操作频带,并提高与接地面的辐射高度,以避免电容效应,使天线具有良好的辐射特性;在第三章中,使用倒F形天线设计概念,使用双路径架构於末端耦合,并於辐射臂上采取适当接地点电感效应作输入阻抗匹配,达成涵盖GSM900/DCS/PCS/UMTS系统的四个操作频带;在第四章中,采用倒F形架构并使用耦合馈入方式,使得长辐射金属臂在低频900 MHz附近产生共振,产生低频基频模态及高阶模态,以达成宽频及频宽涵盖GSM900/DCS/PCS/UMTS频带操作,并有效缩减使用体积;最后,分别比较此三种架构的优缺点,再加以业界角度来思考,研发产品天线的流程及思考方向,以及天线应用於可携式导航装置中未来的展望作为本论文的总结。

The paper studies fault diagnosis technology based on fruticose gas pipe network which is universal in small towns,and gives a particular description of domestic and foreign gas pipe network fault diagnosis technique based on hardware and software currently. The author uses graph theory to build up hydraulic analysis model of natural gas network and presents its solution methods. Besides, the author works out the relation between gas pipe pressure and flux in unsteady condition of fluid flow according to pressure boundary condition and differential equation group, and puts forward fault diagnosis methods and steps of the fruticose natural gas pipe network of middle pressure based on the simplification of this relation.

本文针对小城镇比较普遍的枝状天然气分配管网进行故障诊断技术研究,详细叙述了目前国内外基于硬件和软件的燃气管网故障诊断技术,利用图论理论建立了天然气管网水力分析模型并叙述了其求解方法,根据燃气管内流动的微分方程组和压力边界条件求解出非稳定流动时燃气管道压力和流量的关系,并在对此关系进行简化的基础上提出了基于中压枝状天然气管网的故障诊断方法和步骤。

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推荐网络例句

Shop assistant: Please check at the door.

店员:请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后,对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论,结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。

Quick stop! AIDS doctors while the side and say hello and colleagues mention a blood sample box, the Red Cross had sent blankets and so on, with patients有说有笑to go home.

快停车!防艾医生们一边招呼一边和和同事们提着血液采样箱,抱着红十字会送来的被子等,有说有笑地同患者往家走。