Xem 1-10 trên 10 kết quả Polyphase
  • This chapter include contents: Introduction to Polyphase Induction Machines, currents and fluxes in Polyphase Induction Machines, induction – motor equivalent circuit, analysis of the equivalent circuit, torque and power by use of Thevenin’s theorem, parameter determination from no – load and blocked – rotor tests, effects of rotor resistance.

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  • Tham khảo tài liệu 'polyphase merge sort', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Review Article Construction of Sparse Representations of Perfect Polyphase Sequences in Zak Space with

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  • Most students of electricity begin their study with what is known as direct current (DC), which is electricity °owing in a constant direction, and/or possessing a voltage with constant polarity. DC is the kind of electricity made by a battery (with de¯nite positive and negative terminals), or the kind of charge generated by rubbing certain types of materials against each other. As useful and as easy to understand as DC is, it is not the only \kind" of electricity in use.

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  • (BQ) he objective of Ebook Electrical machine is to study the devices used in the interconversion of electric and mechanical energy. Emphasis is placed on electromagnetic t rotating machinery, by means of which the bulk of this energy conversion takes place.

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  • Spreading Sequences Overview In this chapter we study the structures and properties of orthogonal and pseudoorthogonal sequences. Firstly, we examine several types of pseudo-orthogonal (PN) and Quasi-Orthogonal (QO) sequences, and present their cross-correlation properties under synchronous and asynchronous conditions. Secondly, we survey basic methods of constructing orthogonal code sets. Orthogonal binary (Hadamard) codes may exist for lengths 1, 2 and 4k (for k = 1, 2, 3, ...). Methods for generating all lengths up to 256 are presented.

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  • Chương 1 của bài giảng Cở sở dữ liệu 2 trình bày về sắp thứ tự ngoại. Sắp thứ tự ngoại là sắp thứ tự trên tập tin, việc sắp xếp trên các cấu trúc dữ liệu loại tập tin đòi hỏi phải áp dụng các phương pháp đặc biệt. Chương này sẽ giới thiệu một số phương pháp như sau: Phương pháp trộn RUN, phương pháp trộn tự nhiên, phương pháp trộn đa lối cân bằng (balanced multiway merging), phương pháp trộn đa pha (Polyphase Merge). Mời các bạn cùng tham khảo.

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  • Sorting Divice-andConquer •Natural Merge •Balanced Merge •Polyphase Merge •Insertion •Shell •Selection •Heap •Bubble •Quick •Quick •Merge

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  • Lecture Electromechanical energy conversion include all of the following: Magnetic circuits and magnetic materials, electromechanical energy conversion principles, introduction to rotating machines, synchronous machines, polyphase induction machines, dc machines, variable – reluctance machines and stepping motors, single and two – phase motors, speed and torque control.

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  • This chapter include all of the following content: Introduction to polyphase synchronous machines, synchronous – machine inductances and equivalent circuits, performance characteristics, effects of salient poles, power – angle characteristics of salient – pole machines, permanent – magnet ac motors.

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