·Electric Machinery (6th ed)作者們生前最后一本書作者師傅也已故的經典教材A. E. Fitzgerald / Charles Kingsley Jr., / Stephen D. Umans, Electric Machinery, 6th Edition McGraw-Hill | ISBN: 0073660094 | 6 edition (July 25, 2002)
標簽： nbsp Machinery Electric ED
上傳時間： 2013-04-24
上傳用戶：zhangjinzj
all electric Machinery dynamic simulation is realized by this book
標簽： simulation Machinery electric realized
上傳時間： 2017-03-31
上傳用戶：siguazgb
Gives all the matlab codes for dynamic simulation of electric Machinery by Chee-Mun Ong
標簽： simulation Machinery Chee-Mun electric
上傳時間： 2017-04-19
上傳用戶：lmeeworm
The chief objective of Electric Machinery continues to be to build a strong foundation in the basic principles of electromechanics and electric Machinery. Through all of its editions, the emphasis of Electric Machinery has been on both physical insight and analytical techniques. Mastery of the material covered will provide both the basis for understanding many real-world electric-Machinery applications as well as the foundation for proceeding on to more advanced courses in electric Machinery design and control.
上傳時間： 2020-06-10
上傳用戶：shancjb
This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial Machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System
上傳時間： 2013-11-05
上傳用戶：維子哥哥
嵌入式系統是一種應用范圍非常廣泛的系統?？梢哉f除了桌面計算機和服務器外所有計算設備都屬于嵌入式系統，例如從便攜式音樂播放器到航天飛機上的實時系統控制都屬于嵌入式系統。 大多數商用的嵌入式系統都設計成專用任務的低成本的產品。大多數的嵌入式系統都具有實時性的要求。有些功能需要非常快的主頻，但其他大多數功能并不需要高速的處理能力。這些系統通過特定的器件和軟件來滿足實時性的要求。 簡單地通過速度和成本來定義嵌入式系統是困難的，但對于大批量的產品而言，成本常常對系統設計起決定作用。通常，一個嵌入式系統的很多部分相對系統主要功能來說需要較低的性能，因此嵌入式系統和通用PC相比，能夠使用一個滿足輔助功能的合適的CPU，從而簡化了系統設計，降低了成本。例如，數字電視的機頂盒需要處理每秒以百萬兆位計的連續數據，但這些數據處理大部分是由定制的硬件來實現的，如解析、管理和編解碼多個頻道的數字影像。 對于大批量生產的嵌入式系統，如便攜式音樂播放器或手機等，降低成本就成為最主要的問題。這些系統通常只具有幾個芯片：一個高度集成的CPU，一個定制的芯片用于控制其他所有的功能，還有一個存儲芯片。在這種設計中，每部分都設計成使用最小的系統功耗。 對于小批量的嵌入式應用，為了降低開發成本，常常使用PC體系結構，通過限制程序的執行時間或用一個實時操作系統來替換原先的操作系統。在這種情況下，可以使用一個或多個高性能的CPU來替換特殊用途的硬件。 嵌入式系統的軟件通常運行在有限的硬件資源上：沒有硬盤、操作系統、鍵盤或屏幕。軟件一般都沒有文件系統，如果有的話，也會采用Flash驅動器。如果有人機交互接口的話，也是一個小鍵盤或液晶顯示器。硬件是計算機的物理部分，和存儲在硬件中的計算機軟件程序和數據區分開來。 嵌入到機械中的嵌入式系統需要長期無故障連續運行，因此它的軟件需要比PC中的軟件更加仔細地開發和更加嚴格地測試。 那么，到底什么是嵌入式系統呢？ 根據IEEE（國際電氣和電子工程師協會）的定義，嵌入式系統是“控制、監視或者輔助設備、機器和車間運行的裝置”（原文為devices used to control，monitor，or assist the operation of equipment，Machinery or plants）。這主要是從應用上加以定義的，從中可以看出嵌入式系統是軟件和硬件的綜合體，還可以涵蓋機械等附屬裝置。 目前國內一個普遍被認同的定義是：以應用為中心、以計算機技術為基礎，軟件 硬件可裁剪，適應應用系統對功能、可靠性、成本、體積、功耗嚴格要求的專用計算機系統。 可以這樣認為，嵌入式系統是一種專用的計算機系統，作為裝置或設備的一部分。通常，嵌入式系統是一個控制程序存儲在ROM中的嵌入式處理器控制板。事實上，所有帶有數字接口的設備，如手表、微波爐、錄像機、汽車等，都使用嵌入式系統，有些嵌入式系統還包含操作系統，但大多數嵌入式系統都是由單個程序實現整個控制邏輯。 本書是按照人事部、信息產業部全國計算機技術與軟件專業技術資格（水平）考試要求編寫，內容緊扣《嵌入式系統設計考試大鋼》。全書共六章，分別對嵌入式系統基礎知識、嵌入式微處理器與接口設計、嵌入式軟件與操作系統、嵌入式軟件程序設計、嵌入式系統設計與維護等知識進行了詳細的講解。最后介紹了一個典型的嵌入式系統設計案例。 本書內容豐富，結構合理，概念清晰。既可作為全國計算機技術與軟件專業技術資格（水平）考試中嵌入式系統設計師級別的考試用書，供有關考生學習使用，也可作為本科生嵌入式系統相關課程教材或培訓書使用。
上傳時間： 2013-10-29
上傳用戶：dongqiangqiang
This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial Machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System
上傳時間： 2013-11-14
上傳用戶：zoudejile
The ICA/BSS algorithms are pure mathematical formulas, powerful, but rather mechanical procedures: There is not very much left for the user to do after the Machinery has been optimally implemented. The successful and efficient use of the ICALAB strongly depends on a priori knowledge, common sense and appropriate use of the preprocessing and postprocessing tools. In other words, it is preprocessing of data and postprocessing of models where expertise is truly ne
標簽： mathematical algorithms mechanical procedures
上傳時間： 2015-03-31
上傳用戶：silenthink
ACM/ICPC(ACM International Collegiate Programming Contest, 國際大學生程序設計競賽)是由國際計算機界歷史悠久、頗具權威性的組織ACM（Association for Computing Machinery，美國計算機協會）主辦的，世界上公認的規模最大、水平最高的國際大學生程序設計競賽，其目的旨在使大學生運用計算機來充分展示自己分析問題和解決問題的能力。該項競賽從1970年舉辦至今已歷29屆，一直受到國際各知名大學的重視，并受到全世界各著名計算機公司的高度關注，在過去十幾年中，APPLE、AT&T、MICROSOFT和IBM等世界著名信息企業分別擔任了競賽的贊助商?？梢哉f，ACM國際大學生程序設計競賽已成為世界各國大學生最具影響力的國際級計算機類的賽事， 是廣大愛好計算機編程的大學生展示才華的舞臺，是著名大學計算機教育成果的直接體現，是信息企業與世界頂尖計算機人才對話的最好機會。 有很多高校都有專門的ACM訓練網站，我比較喜歡光顧的是浙大的，acm.zju.edu.cn。但是很不幸，這幾天這個網站掛了，希望可以很快修好。 做做在線ACM，感覺還是不錯的，打算沒有做一題，以后我會在這個ACM專欄里把每天的題目和我遞交成功的源代碼貼出來，看看自己能堅持多就：）
標簽： ACM International Programming Collegiate
上傳時間： 2013-12-27
上傳用戶：從此走出陰霾
Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy Machinery and engines because the noise is selectively eliminated. Desired sounds, such as speech and warning signals, are left to be heard clearly. The adaptive control algorithm is implemented on a Texas Instruments (TI™ ) 1 TMS320C30GEL digital signal processor (DSP), which drives a Sony CD550 headphone/microphone system. Our experiments indicate that adaptive noise control results in a dramatic improvement in performance over fixed noise control. This improvement is due to the availability of high-performance programmable DSPs and the self-optimizing and tracking capabilities of the adaptive controller in response to the surrounding noise.
標簽： Commercially controllers headphones available
上傳時間： 2013-12-04
上傳用戶：dyctj
