1000 resultados para BON-0-A


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En este proyecto de Fin de Carrera se ha creado una nueva versión de la herramienta WebDiagram, cuya función es facilitar el desarrollo de aplicaciones interactivas mediante la metodología InterMod. La nueva versión de la herramienta se basa en la versión anterior y se diferencia en que contiene un prototipo del Modelo de Diálogo completamente funcional. Además, WebDiagram 3.0 incorpora la concurrencia y mejora algunos aspectos del diagrama. En WebDiagram2.0 se detectaron diversos fallos en la ejecución del programa de prototipado, difíciles de solucionar, que venían arrastrándose a lo largo de las versiones efectuadas de esta herramienta. Con el objetivo de conseguir eliminar todos estos bugs se decidió partir de cero e incorporar el desarrollo guiado por pruebas, también conocido como Test-driven development. Este proceso de desarrollo facilita la corrección de errores, primero escribiendo las pruebas que fallan, y después implementando el código que hace que pase la prueba satisfactoriamente. Las pruebas han sido organizadas en base a Objetivos de Usuario. A lo largo de las iteraciones del proceso se han validado a nivel de requerimientos, presentación y funcionalidad, tal y como aconseja la metodología InterMod. Finalmente, cabe destacar que se ha intentado llevar a cabo el proyecto haciendo un seguimiento activo junto con la directora y otro miembro evaluador para, principalmente, fomentar el trabajo en equipo.

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Ponencia leída en el Foro de Comunicaciones IkasArt II (BEC Barakaldo, 2010.06.18)

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全书以命令行方式通过大量教学实例和工程应用实例,介绍了建立模型、求解和结果后处理的全过程。

目 录

前言

第1篇教学实例篇

第1章简单拉压杆结构

1.1铰接杆在外力作用下的变形

1.2人字形屋架的静力分析

1.3超静定拉压杆的反力计算

1.4平行杆件与刚性梁连接的热应力问题

1.5端部有间隙的杆的热膨胀

第2章梁的弯曲问题

2.1等截面简单超静定梁的平面弯曲分析

2.2工字形截面外伸梁的平面弯曲

2.3矩形截面梁的纵横弯曲分析

2.4悬臂梁的双向弯曲

2.5 圆形截面悬臂杆的弯扭组合变形

2.6悬臂等强度梁的弯曲

2.7弹性地基半无限长梁在端部力和力偶作用下的变形

2.8偏心受压杆的大变形分析

第3章杆系稳定性计算

3.1利用梁单元计算压杆稳定性

3.2利用实体单元计算压杆稳定性

3.3悬臂压杆的过曲屈分析

3.4平面钢架的平面外失稳

第4章实体模型应力分析

4.1 均布荷载作用下深梁的变形和应力

4.2一对集中力作用下的圆环

4.3用实体单元分析变截面杆的拉伸

4.4用二维实体单元分析等截面悬臂梁的平面弯曲

4.5变截面悬臂梁在端部集中力作用下的平面静力分析

4.6纯弯曲悬臂曲梁的二维静力分析

4.7端部集中力作用的悬臂圆环曲梁平面弯曲的三维分析

4.8均匀拉力作用下含圆孔板的孔边应力集中

4.9两端固定的厚壁管道在自重作用下的变形和应力

第5章膜和薄壳问题

5.1含椭圆孔的椭圆薄膜在外部张力作用下的静力分析

5.2圆形薄膜大变形静力分析

5.3柱形容器在内压作用下的静力分析

5.4圆柱形薄壳在均匀内压作用下的静力分析

第6章板的弯曲和壳体计算

6.1简支和固支圆板的在不同荷载作用下的弯曲

6.2悬臂长板的大挠度弯曲

6.3用壳体单元分析受均布荷载作用的固支圆板大挠度弯曲

6.4利用拉伸操作建立膨胀弯管模型

6.5两端简支开口柱壳在自重作用下的静力分析

6.6圆筒在一对横向集中力作用下的变形

6.7两边简支开口柱壳在集中力作用下的大变形曲屈

第7章简单振动系统

7.1单自由度弹簧质量系统的频率计算

7.2悬索自由振动的频率

7.3用弹簧单元连接的圆盘的扭转振动

7.4圆杆连接圆盘的扭转振动

7.5钻杆的扭转自由振动

第8章梁的振动分析

8.1简支梁的自振频率计算

8.2 自由―自由梁的纵向自由振动

8.3有轴向压力作用的简支梁的自由振动

8.4用壳体单元计算悬臂等强度梁的自由振动

8.5矩形截面薄壁悬臂梁的自由振动

第9章膜板和实体振动

9.1 圆形张紧薄膜的自由振动

9.2薄膜二维非轴对称自由振动分析

9.3薄膜三维非轴对称振动分析

9.4悬臂长板的自由振动频率

9.5悬臂宽板的模态分析

9.6固支圆板的自由振动

9.7用实体单元分析圆环的振动

9.8机翼模型的振动分析

第1 0章平面建模分析和三维实体建模

10.1 带三个圆孔的平面支座分析

10.2角支座应力分析

10.3 体斜支座的实体建模

10.4四分之一车轮的实体建模

10.5轴承支座的实体建模

第1 1章最优化设计

11.1概述

11.2最优化问题框架

11.3 ANSYS优化设计流程

11.4变截面悬臂梁的外形形状优化

11.5平面刚架的优化设计

第12章层合板和断裂力学

12.1 四边简支方形层合板在均布外载作用下的变形

12.2均布拉力作用下含裂纹板的应力强度因子计算

第2篇工程应用篇

第13章用APDL实现空间网壳结构参数化建模

13.1 K系列球面网壳结构的特点和建模

13.1.1 K系列球面网壳的特点

13.1.2几何描述

13.1.3杆件连接关系

13.2参数化设计语言APDL介绍

13.2.1参数和表达式

13.2.2 ANSYS 中的基本指令

13.2.3分支和循环

13.3用户界面设计语言UIDL介绍

13.3.1 单行参数输入

13.3.2多行参数输入

13.4网壳建模程序设计

13.4.1模型建立的步骤

13.4.2节点坐标计算

13.4.3单元连接

13.4.4变量说明

13.4.5节点坐标计算公式

13.4.6主框图说明

13.4.7单元连接关系定义

13.4.8源程序

13.5程序使用说明

13.5.1加载程序

13.5.2界面说明

13.5.3注意事项

13.6应用举例

13.6.1基本参数

13.6.2输入数据并生成模型

13.6.3输入单元参数和荷载后开始计算

13.6.4选择结果输出方式

第14章塔式起重机静动力分析

14.1塔式起重机基本概念

14.2塔式起重机拓扑模型

14.3塔机模型受力分析

14.3.1部件受力特征分析

14.3.2截面参数定义

14.3.3自重荷载和配重

14.3.4选用合适的分析模型。

14.3.5 固定塔身底部的4个节点

14.4塔机建模程序设计

14.4.1塔身节点计算和单元连接

14.4.2塔顶建模

14.4.3塔臂建模

14.4.4平衡臂和斜拉索建模

14.5塔机静力分析

14.6塔机模态分析

14.7塔机静动力分析程序

第15章长柱形天然气罐在内压作用下的静力分析

15.1概述

15.2建立模型

15.3利用轴对称壳单元SHELL51计算

15.3.1单元基本性质和约定

15.3.2求解过程

15.3.3源程序

15.3.4计算结果

15.3.5简体部分理论解

15.3.6结果讨论

15.4利用8节点2D实体单元PLANE82单元计算

15.4.1建立模型

15.4.2计算过程

15.4.3计算结果及讨论

15.4.4源程序

15.5用20节点3D实体单元solid95计算1/4模型

15.5.1建立1/4三维模型

15.5.2计算步骤

15.5.3计算结果分析

15.5.4与弹性力学解答的对比

15.5.5计算程序

附录

附录A常用结构单元参考

附录B结构分析命令速查

参考文献

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MicrosoftVisualC十十6.0作为Microsoft Visual Studio的重要组成部分,包含了迄今为止功能最为强大的基于Windows的应用框架,在同类产品中处于领先地位。VisualC十十6.0是Microsoft迄今为止最全面、最完善的程序开发工具,为了适应各种编程风格,该软件提供了各种各样的辅助工具,在发挥编程能力和提高灵活性方面达到了空前的水平。与以往VisualC十十的各种版本相比较,VisualC十十6.0在编程环境、程序语言技术等方面做了许多改进,从而使VisualC十十更加适合专业程序员快速进行应用程序的开发。

本书内容丰富、图文并茂,是一本适合各种读者学习VisualC十十6.0的优秀参考书。

目 录
第一章 VisualC十十6.0简介及安装
1.1VisualC十十6.0新特性
1.2viSualC十十6.0开发环境简介
1.3如何学习使用VisualC十十6.0
1.4VisualC十十6.0的安装
第二章 走进C十十的世界
2.1类和对象的简介
2.2继承和多态性――一个具体的例子
2.3内嵌对象
2.4在栈中申请对象
2.5全程对象的申请
2.6对象之间的相互关系――指针数据成员
2.7this指针的使用
2.8对指针的引用
2.9友元类和友元函数
2.10静态类成员
2.11重载运算符
2.12从代码中分离出类定义
2.13匈牙利表示法
第三章 VisualC十十6.0的编程环境
3.1VisualC十十6.0主窗口
3.2VisualC十十6.0工具栏
3.3VisualC十十6.0菜单栏
3.4项目与项目工作区
3.5资源与资源编辑器
第四章 编一个最简单的VC十十程序
4.1什么是AppWizard?
4.2迎接你的第一个AppWizard程序
4.3“Iamaprogrammer.”在哪儿?
第五章 程序框架入门
5.1一个简化过的程序框架
5.2WinMain():第一个动作
5.3登记窗口类
5.4创建一个窗口
5.5显示窗口
5.6显示出那条消息
5.7窗口类与窗口对象
第六章 消息循环
6.1在消息循环中兜圈子
6.2对事件做出响应:WindowFun()
6.3响应不同的消息
6.4现在你还跟得上吗?
6.5设备界面进行交互
第七章 精通程序框架
7.1WinMain()函数在哪儿?
7.2应用程序框架和源文件
7.3工具条、状态条和打印等选项
7.4程序的控制流程
第八章 使用classWizard编程
8.1使用ClassWizard添加消息处理函数
8.2classWizard功能介绍
8.3传送鼠标消息
8.4保存鼠标绘图的信息
第九章 视图与文档
9.1Document-View模式
9.2从视图中分离出文档
9.3保存文档
9.4再访MyProg2.cpp
第十章 对象连接与嵌入(OLE)及其自动化
10.1公共对象模式(COM)
10.2类厂(classfactory)
10.3OLE自动化
10.4IDispatch接口
第十一章 动态连接库(DLLs)
11.1为什么使用DLL
11.2传统的DLL
11.3MFC库DLL
11.4MyProg4A――编写自己的类库扩展DLL
11.5MyProg4B――使用MFC库扩展DLL
11.6资源访问
第十二章 图形设备接口
12.1设备环境类
12.2GDI对象
12.3Windows的颜色映射
12.4映射方式
12.5字体
12.6MyProg3例程序
12.7MyProg3B程序
12.8MyPr0g3C例程序――使用CScrollView
第十三章 对话框
13.1在状态条上显示对话控件的帮助信息
13.2利用Fi1eOpen通用对话框打开多个文件
13.3定制通用文件对话框
13.4扩展和缩减一个对话框
13.5显示一个模式或无模式对话框
13.6编写定制的DDX/DDV例程
第十四章 剖析工具Spy十+
14.1窗体
14.2消息
14.3进程与线程
第十五章 代码调试
15.1TRACE
15.2调试框架
15.3自我诊断
15.4调试代码的作用
15.5用Dump()显示对象的信息
15.6检查内存

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Lan honen helburua La1-x Cax MnO3 [x ~ 0.2] (perovskiten familiakoa) laginaren azterketan oinarritzen da. "High resolution dielectric analyzer" tresnari esker permitibitate dielektrikoa neurtuko da eta honen bitartez erresistentzia eta eroankortasun elektrikoa. Azterketa hau [10-2, 107] Hz maiztasun-tarte batean eta tenperatura desberdinetan (150K, 170K, 190K, 210K, 230K, 300K) burutuko da, ondoren materialak magnitude hauen bariazioekiko duen erantzuna aztertuz.

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Nearshore 0-group western Baltic cod are frequently caught as bycatch in the commercial pound net fishery. Pound net fishermen from the Danish Isle of Funen and Lolland and the German Isle of Fehmarn have recorded their catches of small cod between September and December 2008. Abundance patterns were analysed, particularly concerning the influence of abiotic factors (hydrography, meteorology) and the differences between sampling sites. Catch per unit effort (CPUE) differed by site and location, whereas CPUE were highest at Lolland. Correlation between catch and wind/currents were generally weak. However, wind directions and current speeds seem to affect the catch rates. Finally an algorithm was developed to calculate a recruitment index for western Baltic cod recruitment success based on previous analyses.

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Shrimping in the waddensea is frequently considered to significantly reduce the numbers of juvenile plaice . This investigation aims to reveal the seasonal and regional differences regarding discards in the German waddensea and sets the results in relation to the bycatch projects with German participation. Furthermore, methodological aspects are evaluated to find possible effects on the estimation of the netted numbers. The bycatch problem exists predominantly throughout the summer season, but high catches of juvenile plaice can occur occasionally in autumn. The discard issue seems to be most important in the East Frisian region, while the Elbe and Schleswig-Holstein areas are of lesser importance. Considering the distribution of the fish in the environment is as indispensable as sampling of the shrimp fleet with optimum representativity. There are indices that the contribution of the Dutch shrimp fleet to the discard mortality of juvenile plaice was underestimated in the recent past. A combination of time and area closures as restrictions in combination with the extensive application of selective gears could possibly gain the best protection for the affected species.

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This paper describes Mateda-2.0, a MATLAB package for estimation of distribution algorithms (EDAs). This package can be used to solve single and multi-objective discrete and continuous optimization problems using EDAs based on undirected and directed probabilistic graphical models. The implementation contains several methods commonly employed by EDAs. It is also conceived as an open package to allow users to incorporate different combinations of selection, learning, sampling, and local search procedures. Additionally, it includes methods to extract, process and visualize the structures learned by the probabilistic models. This way, it can unveil previously unknown information about the optimization problem domain. Mateda-2.0 also incorporates a module for creating and validating function models based on the probabilistic models learned by EDAs.

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In this work, we measured 14 horizontal velocity profiles along the vertical direction of a rectangular microchannel with aspect ratio alpha = h/w = 0.35 (h is the height of the channel and w is the width of the channel) using microPIV at Re = 1.8 and 3.6. The experimental velocity profiles are compared with the full 3D theoretical solution, and also with a Poiseuille parabolic profile. It is shown that the experimental velocity profiles in the horizontal and vertical planes are in agreement with the theoretical profiles, except for the planes close to the wall. The discrepancies between the experimental data and 3D theoretical results in the center vertical plane are less than 3.6%. But the deviations between experimental data and Poiseuille's results approaches 5%. It indicates that 2D Poiseuille profile is no longer a perfect theoretical approximation since a = 0.35. The experiments also reveal that, very near the hydrophilic wall (z = 0.5-1 mu m), the measured velocities are significantly larger than the theoretical velocity based on the no-slip assumption. A proper discussion on some physical effects influencing the near wall velocity measurement is given.

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To interpret the temporal information on texts, a mark-up language that will code that information is needed, in order to make that information automatically reachable. The most used mark-up language is TimeML (Pustejovsky et al., 2003), which has also been choosen for Basque. In this guidelines we present the Basque version of ISO-TimeML (ISO-TimeML working group, 2008). After having analysed the tags, attributes and values created for English, we describe the most appropriate ones to represent Basque time structures’ information.

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介绍了一种高重复频率掺钛蓝宝石飞秒激光多通高效率放大系统.在抽运功率为23W,入射功率为660mW时,获得7.2W的放大输出,放大效率达30%.经压缩器压缩后,获得单脉冲能量4.5mJ,脉冲宽度为38fs,重复频率为1kHz,峰值功率大于0.1TW的超短超强激光脉冲.

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LABURPENA: Aurrerapen zientifikoek aurrera egin ahala, lehen haurtzarorako begirada eraldatu egin da, bereziki garapen motorraren alorrean. Haurtxoa izaki pasibo bezala ikusten zuten ikuskerek, subjektuaren konpetentzia goiztiarren aurrean begiruneko jarrerak gartu dituzte. Lan honetan kalitatezko hezkuntza eredu instituzionalizatua garatu zuen Emmi Pikler-en ekarpenak aztertuko ditugu. Eredu honek printzipio pedagogiko zehatz batzuen arabera jaioberria eta haurtxo txikia ikusteko beste era bat eta hezitzaile bezala zaintzen dugun ume bakoitzarekiko betetzen dugun rolaren eraldaketa proposatzen du. Honek hezitzailearen jardunbide tradizionala birplanteatzera bultzatzen gaitu, haurrenganako maitasuna eta begirunea oinarritzat duen hezkuntza sistema bat eraiki ahal izateko.

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Two-cycle optical pulses with duration of 5 fs and energy of 0.7 mJ have been generated at 1 kHz by compressing the 38 fs laser pulses from a carrier-envelope phase (CEP) controlled Ti:sapphire laser system through a cascade filamentation compression technique. A simple and effective method is developed to suppress multiple filament formation and stabilize a single filament by inserting a soft aperture with an appropriate diameter into the driving laser beam prior to focusing, resulting in an excellent compressed beam quality. The good beam quality and potentially higher peak power make this ultrashort laser pulse source a significant tool for high-field physics applications. (C) 2007 Optical Society of America.