I have no words to say!

Rails源代码下载
作者购买了Agile Web Development with Rails第二版并尝试下载书中提供的源代码,但因地理位置限制未能直接获取。最终通过第三方博客找到了资源,并决定分享该源代码。

下血本 买了  agile webdevelopment with rails , the second edition,  按书中的说明去  网站上下 本书的源代码...可是网站上说:

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很鱼门, 后来我从http://kris-xu.iteye.com/blog/post/290766 这里得到代码  特别感谢kris-xu 兄   我把代码也放到我 blog上让大家下载:)

Based on the following story, continue the story by writing two paragraphs, paragraph 1 beginning with "A few weeks later, I went to the farm again. " and paragraph 2 beginning with "I was just about to leave when the hummingbird appeared."respectively with 150 words. I was invited to a cookout on an old friend's farm in western Washington. I parked my car outside the farm and walked past a milking house which had apparently not been used in many years.A noise at a window caught my attention,so I entered it. It was a hummingbird,desperately trying to escape. She was covered in spider-webs and was barely able to move her wings. She ceased her struggle the instant I picked her up. With the bird in my cupped hand, I looked around to see how she had gotten in. The broken window glass was the likely answer. I stuffed a piece of cloth into the hole and took her outside,closing the door securely behind me. When I opened my hand, the bird did not fly away; she sat looking at me with her bright eyes.I removed the sticky spider-webs that covered her head and wings. Still, she made no attempt to fly.Perhaps she had been struggling against the window too long and was too tired? Or too thirsty? As I carried her up the blackberry-lined path toward my car where I kept a water bottle, she began to move. I stopped, and she soon took wing but did not immediately fly away. Hovering,she approached within six inches of my face. For a very long moment,this tiny creature looked into my eyes, turning her head from side to side. Then she flew quickly out of sight. During the cookout, I told my hosts about the hummingbird incident. They promised to fix the window. As I was departing, my friends walked me to my car. I was standing by the car when a hummingbird flew to the center of our group and began hovering. She turned from person to person until she came to me. She again looked directly into my eyes, then let out a squeaking call and was gone. For a moment, all were speechless. Then someone said, “She must have come to say good-bye.”
02-12
【事件触发一致性】研究多智能体网络如何通过分布式事件驱动控制实现有限时间内的共识(Matlab代码实现)内容概要:本文围绕多智能体网络中的事件触发一致性问题,研究如何通过分布式事件驱动控制实现有限时间内的共识,并提供了相应的Matlab代码实现方案。文中探讨了事件触发机制在降低通信负担、提升系统效率方面的优势,重点分析了多智能体系统在有限时间收敛的一致性控制策略,涉及系统模型构建、触发条件设计、稳定性与收敛性分析等核心技术环节。此外,文档还展示了该技术在航空航天、电力系统、机器人协同、无人机编队等多个前沿领域的潜在应用,体现了其跨学科的研究价值和工程实用性。; 适合人群:具备一定控制理论基础和Matlab编程能力的研究生、科研人员及从事自动化、智能系统、多智能体协同控制等相关领域的工程技术人员。; 使用场景及目标:①用于理解和实现多智能体系统在有限时间内达成一致的分布式控制方法;②为事件触发控制、分布式优化、协同控制等课题提供算法设计与仿真验证的技术参考;③支撑科研项目开发、学术论文复现及工程原型系统搭建; 阅读建议:建议结合文中提供的Matlab代码进行实践操作,重点关注事件触发条件的设计逻辑与系统收敛性证明之间的关系,同时可延伸至其他应用场景进行二次开发与性能优化。
【四旋翼无人机】具备螺旋桨倾斜机构的全驱动四旋翼无人机:建模与控制研究(Matlab代码、Simulink仿真实现)内容概要:本文围绕具备螺旋桨倾斜机构的全驱动四旋翼无人机展开,重点研究其动力学建模与控制系统设计。通过Matlab代码与Simulink仿真实现,详细阐述了该类无人机的运动学与动力学模型构建过程,分析了螺旋桨倾斜机构如何提升无人机的全向机动能力与姿态控制性能,并设计相应的控制策略以实现稳定飞行与精确轨迹跟踪。文中涵盖了从系统建模、控制器设计到仿真验证的完整流程,突出了全驱动结构相较于传统四旋翼在欠驱动问题上的优势。; 适合人群:具备一定控制理论基础和Matlab/Simulink使用经验的自动化、航空航天及相关专业的研究生、科研人员或无人机开发工程师。; 使用场景及目标:①学习全驱动四旋翼无人机的动力学建模方法;②掌握基于Matlab/Simulink的无人机控制系统设计与仿真技术;③深入理解螺旋桨倾斜机构对飞行性能的影响及其控制实现;④为相关课题研究或工程开发提供可复现的技术参考与代码支持。; 阅读建议:建议读者结合提供的Matlab代码与Simulink模型,逐步跟进文档中的建模与控制设计步骤,动手实践仿真过程,以加深对全驱动无人机控制原理的理解,并可根据实际需求对模型与控制器进行修改与优化。
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