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Курс разработан Санкт-Петербургским государственным электротехническим университетом «ЛЭТИ» им. В.И. Ульянова при поддержке Санкт-Петербургского политехнического университета Петра Великого. «Дискретные и цифровые фильтры» — второй курс специализации, посвященной цифровой обработке сигналов. В предыдущем курсе мы рассмотрели лишь самые простые вещи, связанные с концепцией дискретного времени — свойства дискретных сигналов и линейных стационарных дискретных систем. Но чтобы использовать такие системы для решения практических задач, нужно уметь их рассчитывать, добиваясь при этом желаемых свойств и характеристик. Кроме того, реальная система цифровой обработки сигналов — это вычислительное устройство, операции над числами в котором невозможны без появления некоторых погрешностей. При разработке и использовании таких систем наличие этих погрешностей нужно прогнозировать и учитывать. Об этих вопросах и пойдет речь во втором курсе цикла. Он объединяет несколько тем, посвященных разным аспектам расчета и построения систем, реализующих фильтрацию сигнала, а также вычислительным погрешностям, возникающим в цифровых системах. Знания, полученные в этом курсе, позволят вам двигаться дальше — к пониманию еще более сложных методов и алгоритмов. Цель курса: Сформировать у слушателей представление о сущности и применении дискретного преобразования Фурье, о методах расчета дискретных фильтров с заданными свойствами, о способах изменения частоты дискретизации сигнала, о проявлениях эффектов квантования и округления в системах цифровой обработки сигналов. В результате обучения слушатели будут: * Знать определение и свойства дискретного преобразования Фурье. * Понимать принципы расчета дискретных фильтров с заданными свойствами. * Уметь выполнять расчеты, связанные с анализом вычислительных погрешностей в системах цифровой обработки сигналов.
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    這門課是「CAD/BIM技術與應用」專項課程的第五門課,屬於BIM系列課程:「工程資訊管理BIM基礎」、「工程資訊管理BIM塑模」及「工程資訊管理BIM應用」的第一門課。 修習這門課之前,應具備工程繪圖的基礎觀念,並能讀懂工程圖說,了解工程圖說符號所代表的意義。此外,也需具備3D建模的基礎觀念,並嘗試建立自己的3D模型。「CAD/BIM技術與應用」專項課程的「工程圖學2D CAD」、「工程圖學2D CAD專題」、「工程圖學3D CAD」、「工程圖學3D CAD專題」課程,可提供修習這門課前所需具備的相關知識。 這門課將提供BIM的基礎知識,學習者能理解BIM在建築土木產業發展的現況,並欣賞工程師們如何運用BIM技術,提升工程的效率、品質與安全。我們相信,唯有親自動手操作,才能真正的學會BIM。因此,除了基礎的觀念外,這門課也將介紹如何檢視BIM模型中的資訊,讓工程師們可透過BIM模型,討論工程難題,並可以運用BIM相關的軟體工具,找到所需的工程資訊。 想知道什麼是BIM嗎?這門課適合想了解BIM知識的工程師與土木相關領域的管理階層人士修習。課程中所教授的BIM知識與軟體工具,能幫助了解全觀的BIM知識;所教授的軟體操作技能,能讓使用者檢視BIM模型中的資訊,並一窺BIM模型的資訊架構。 預估所需學習總時間:18小時。
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      This course is an introduction to learning and applying the principles required to solve engineering mechanics problems. Concepts will be applied in this course from previous courses you have taken in basic math and physics. The course addresses the modeling and analysis of static equilibrium problems with an emphasis on real world engineering applications and problem solving. The copyright of all content and materials in this course are owned by either the Georgia Tech Research Corporation or Dr. Wayne Whiteman. By participating in the course or using the content or materials, whether in whole or in part, you agree that you may download and use any content and/or material in this course for your own personal, non-commercial use only in a manner consistent with a student of any academic course. Any other use of the content and materials, including use by other academic universities or entities, is prohibited without express written permission of the Georgia Tech Research Corporation. Interested parties may contact Dr. Wayne Whiteman directly for information regarding the procedure to obtain a non-exclusive license.
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        This course is perfect for people who want to learn more about the plastic injection process and injection molds and expand their knowledge in an industry in high demand. This course is also essential for those people who have been in the sector for a long time and want to consolidate concepts, discover the why of things or simply remember concepts and see the latest trends in the sector. "Remember that everything in nature when it stagnates begins a decline" Index: Chapter 0: Introduction Chapter 1: Injection Molding Process Introduction Injection  cycle stages Pvt Diagrams Influence of injection parameters Calculation in injection process Deffects in injection molding Chapter 2: Scientific Molding Rheology curve Cavities balance Drop pressure Seal gate process window Chapter 3: Types of injection molds Introduction clasficaction by feeding system Clasification by number of plates in cavity/cores Clasification by number of cavities Special tools Chapter 4: Ejection system Introduction Ejection system componts Ejectors (pin ejector, sleeve ejector, blade ejectors) Undercuts( slider, lifter and hydraulic movements) Design of slider (components, calculations and recomendations) Design of lifters (components, calculations and recomendations) Design of Hydraulics (components, calculations and recomendations) Double ejection systems Cavity ejection system How is acted the ejection system Chapter 5: Cooling system Introduction Calculations: cooling time Calculations: heat transfer, coolant flow and diameter of channels Calculations: cooling channel depth and pitch Cooling channel lay-outs Components in cooling channel Temperatur control unit (TCU) Chapter 6: Injection system Introduction Types of injection system Hot runners Lay-out for moldings Calculations: runner diameters. Chapter 7: Gates Introduction types of gates Calculate shear rate Standard gates and runner shu-off Chapter 8: Venting Introduction Deffects and locations for venting Venting design Chapter 9: Graining Introduction Chemical and laser graining
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          There are opportunities throughout the design process of any product to make significant changes, and ultimately impact the future of manufacturing, by embracing the digital thread. In this course, you will dig into the transformation taking place in how products are designed and manufactured throughout the world. It is the second of two courses that focuses on the "digital thread" – the stream that starts at the creation of a product concept and continues to accumulate information and data throughout the product life cycle. Hear about the realities of implementing the digital thread, directly from someone responsible for making it happen at a company. Learn how the digital thread can fit into product development processes in an office, on a shop floor, and even across an enterprise. Be prepared to talk about the benefits, and limitations, of enacting it. Main concepts of this course will be delivered through lectures, readings, discussions and various videos. This is the third course in the Digital Manufacturing & Design Technology specialization that explores the many facets of manufacturing’s “Fourth Revolution,” aka Industry 4.0, and features a culminating project involving creation of a roadmap to achieve a self-established DMD-related professional goal. To learn more about the Digital Manufacturing and Design Technology specialization, please watch the overview video by copying and pasting the following link into your web browser: https://youtu.be/wETK1O9c-CA
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            Prove to potential employers that you’re up to the task by becoming an Autodesk Certified Professional. This online course from Autodesk prepares you by offering an overview of skills that match what is covered in the Autodesk Certified Professional: AutoCAD for Design and Drafting exam. The video lessons are structured to match the exam’s objective domains and follow the typical workflow and features of the AutoCAD software, including sections on drawing and organizing objects, drawing with accuracy, advanced editing functions, layouts, printing, and outputs, annotation techniques, and reusable content and drawing management. In the course, you will create drawing objects, manage layers, apply object snaps, and work with the User Coordinate System. You’ll edit objects and apply rotation and scale, array techniques, grip editing, offsets, fillet and chamfer, and trim and extend. You will also gain an understanding of exam topics such as layouts and viewports, output formats, and drawing management. Brush up on markup tools, hatch and fill, text, tables, multileaders, dimensioning, and much more. About the Autodesk Certified Professional: AutoCAD for Design and Drafting Exam: The Autodesk Certified Professional: AutoCAD for Design and Drafting exam is the recognized standard for measuring your skills and knowledge in AutoCAD. Certification at this level demonstrates a comprehensive skill set that provides an opportunity for individuals to stand out in a competitive professional environment. This type of experience typically comes from having worked with the software on a regular basis for at least 2 years, equivalent to approximately 400 hours (minimum) - 1200 hours (recommended), of real-world Autodesk software experience. Ready to take the exam? Schedule to take the exam online or find a testing center near you on pearsonvue.com/autodesk.
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              This course introduces you to the foundational knowledge in computer-aided design, manufacture, and the practical use of CNC machines. In this course we begin with the basics in Autodesk® Fusion 360™ CAD by learning how to properly sketch and model 3D parts. Before we program any toolpaths, we’ll explore CNC machining basics to ensure we have the ground level foundational knowledge needed to effectively define toolpaths. Finally, we explore the basics of setting up a CAM program and defining toolpaths to cut simple geometry. This is the same basic process that gets repeated for the design and manufacture of any part and is a critical step in learning and understanding the process. Want to take your learning to the next level? Complete the Autodesk CAD/CAM for Manufacturing Specialization, and you’ll unlock an additional Autodesk Credential as further recognition of your success! The Autodesk Credential comes with a digital badge and certificate, which you can add to your resume and share on social media platforms like LinkedIn, Facebook, and Twitter. Sharing your Autodesk Credential can signal to hiring managers that you’ve got the right skills for the job and you’re up on the latest industry trends like generative design. Enroll in the Specialization here: https://www.coursera.org/specializations/autodesk-cad-cam-manufacturing
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                How can we create agile micro aerial vehicles that are able to operate autonomously in cluttered indoor and outdoor environments? You will gain an introduction to the mechanics of flight and the design of quadrotor flying robots and will be able to develop dynamic models, derive controllers, and synthesize planners for operating in three dimensional environments. You will be exposed to the challenges of using noisy sensors for localization and maneuvering in complex, three-dimensional environments. Finally, you will gain insights through seeing real world examples of the possible applications and challenges for the rapidly-growing drone industry. Mathematical prerequisites: Students taking this course are expected to have some familiarity with linear algebra, single variable calculus, and differential equations. Programming prerequisites: Some experience programming with MATLAB or Octave is recommended (we will use MATLAB in this course.) MATLAB will require the use of a 64-bit computer.
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                  Course 2 of Statistical Thermodynamics presents an introduction to quantum mechanics at a level appropriate for those with mechanical or aerospace engineering backgrounds. Using a postulatory approach that describes the steps to follow, the Schrodinger wave equation is derived and simple solutions obtained that illustrate atomic and molecular structural behavior. More realistic behavior is also explored along with modern quantum chemistry numerical solution methods for solving the wave equation.
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                    This course can also be taken for academic credit as ECEA 5360, part of CU Boulder’s Master of Science in Electrical Engineering degree. Programmable Logic has become more and more common as a core technology used to build electronic systems. By integrating soft-core or hardcore processors, these devices have become complete systems on a chip, steadily displacing general purpose processors and ASICs. In particular, high performance systems are now almost always implemented with FPGAs. This course will give you the foundation for FPGA design in Embedded Systems along with practical design skills. You will learn what an FPGA is and how this technology was developed, how to select the best FPGA architecture for a given application, how to use state of the art software tools for FPGA development, and solve critical digital design problems using FPGAs. You use FPGA development tools to complete several example designs, including a custom processor. If you are thinking of a career in Electronics Design or an engineer looking at a career change, this is a great course to enhance your career opportunities. Hardware Requirements: You must have access to computer resources to run the development tools, a PC running either Windows 7, 8, or 10 or a recent Linux OS which must be RHEL 6.5 or CentOS Linux 6.5 or later. Either Linux OS could be run as a virtual machine under Windows 8 or 10. The tools do not run on Apple Mac computers. Whatever the OS, the computer must have at least 8 GB of RAM. Most new laptops will have this, or it may be possible to upgrade the memory.