Xem 1-20 trên 223 kết quả Harmonics
  • Harmonic trading is a methodology that utilizes the recognition of specific price patterns and Fibonacci numbers to determine highly probable reversal points in stocks.

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  • Harmonic distortion problems include equipment overheating, motor failures, capacitor failure and inaccurate power metering. The topic of power system harmonics was covered for the first time 20 years ago and the first edition has become a standard reference work in this area. Unprecedented developments in power electronic devices and their integration at all levels in the power system require a new look at the causes and effects of these problems, and the state of hardware and software available for harmonic assessment.

    pdf190p chipmoon 19-07-2012 76 38   Download

  • Bài tập lớn môn Điều khiển số trình bày nội dung đề tài Thiết kế theo tiêu chuẩn tích phân số (IAE, ITAE, ISE, ITSE) kết hợp với Dead – Beat khâu điều chỉnh tốc độ động cơ DC Servo Harmonic RHS 17 – 6006. Mời các bạn cùng tham khảo.

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  • We present an analysis of bounded-energy low-tension maps between 2-spheres. By deriving sharp estimates for the ratio of length scales on which bubbles of opposite orientation develop, we show that we can establish a ‘quantization estimate’ which constrains the energy of the map to lie near to a discrete energy spectrum. One application is to the asymptotics of the harmonic map flow; we find uniform exponential convergence in time, in the case under consideration.

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  • The infinite-dimensional unitary group U(∞) is the inductive limit of growing compact unitary groups U(N ). In this paper we solve a problem of harmonic analysis on U(∞) stated in [Ol3]. The problem consists in computing spectral decomposition for a remarkable 4-parameter family of characters of U(∞). These characters generate representations which should be viewed as analogs of nonexisting regular representation of U(∞).

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  • In this paper we study the multifractal structure of Schramm’s SLE curves. We derive the values of the (average) spectrum of harmonic measure and prove Duplantier’s prediction for the multifractal spectrum of SLE curves. The spectrum can also be used to derive estimates of the dimension, Hölder exponent and other geometrical quantities. The SLE curves provide perhaps the only example of sets where the spectrum is non-trivial yet exactly computable.

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  • This is the third book containing examples from the Theory of Complex Functions. The first topic will be examples of elementary analytic functions, like polynomials, fractional functions, exponential functions and the trigonometric and the hyperbolic functions. Then follow some examples of harmonic functions. Even if I have tried to be careful about this text, it is impossible to avoid errors, in particular in the first edition. It is my hope that the reader will show some understanding of my situation....

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  • It becomes more important to obtain medical ultrasound images with higher signal-to-noise ratio (SNR) and higher spatial resolution. In the last decade, tissue harmonic imaging (THI) and coded excitation to medical ultrasound imaging have been investigated.

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  • Tài liệu tham khảo Power factor correction and harmonic filtering - Hiệu chỉnh hệ số công suất và lọc sóng hài

    pdf26p nmtinh 30-11-2010 154 70   Download

  • This third edition takes as its theme ‘increasing harmonization in financial statements; mixed comparability and diversity in assurance and corporate reporting’. January 2005 marked a significant stage in the move towards acceptance of international financial reporting standards (IFRS) as the basis for harmonizing financial statements. It was the date from which listed companies in member states of the European Union (EU) were required to apply IFRS in their consolidated financial statements, in place of the accounting standards of their home countries.

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  • We would like to acknowledge the following people for their kindness and support in making this book possible. Richard Kristof, Duncan Anderson, David Marini, Jennifer Gould, Kevin Murray, Dale Leatherwood, Laura Cervoni, and Rhonda Harmon of Global Knowledge, for their generous access to the IT industry’s best courses, instructors, and training facilities. Ralph Troupe, Rhonda St. John, Emlyn Rhodes, and the team at Callisma for their invaluable insight into the challenges of designing, deploying and supporting worldclass enterprise networks....

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  • In a normal alternating current power system, the voltage varies sinusoidally at a specific frequency, usually 50 or 60 hertz. When a linear electrical load is connected to the system, it draws a sinusoidal current at the same frequency as the voltage (though usually not in phase with the voltage). When a non-linear load, such as a rectifier, is connected to the system, it draws a current that is not necessarily sinusoidal. The current waveform can become quite complex, depending on the type of load and its interaction with other components of the system.

    pdf190p kennybibo 14-07-2012 56 14   Download

  • Suppose that G is a locally compact abelian group, and write M(G) for the algebra of bounded, regular, complex-valued measures under convolution. A measure µ ∈ M(G) is said to be idempotent if µ ∗ µ = µ, or alternatively if µ takes only the values 0 and 1. The Cohen-Helson-Rudin idempotent theorem states that a measure µ is idempotent if and only if the set {γ ∈ G : µ(γ) = 1} belongs to the coset ring of G, 1. Introduction Let

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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: Research Article Application of the Subordination Principle to the Harmonic Mappings Convex in One Direction with Shear Construction Method

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  • Tham khảo tài liệu 'power quality harmonics analysis and real measurements data part 1', kỹ thuật - công nghệ, cơ khí - chế tạo máy 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: Statistical resolution limit for the multidimensional harmonic retrieval model: hypothesis test and Cramér-Rao Bound approaches

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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: Editorial Inequalities in the A-Harmonic Equations and the Related Topics

    pdf2p dauphong14 11-02-2012 20 5   Download

  • 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: Research Article High-Quality Time Stretch and Pitch Shift Effects for Speech and Audio Using the Instantaneous Harmonic Analysis

    pdf10p dauphong14 11-02-2012 21 5   Download

  • 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: Research Article Harmonic Enhancement in Low Bitrate Audio Coding Using an Efficient Long-Term Predictor

    pdf9p dauphong14 11-02-2012 26 5   Download

  • 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: Vector Quantization of Harmonic Magnitudes in Speech Coding Applications—A Survey and New Technique

    pdf13p sting12 11-03-2012 26 5   Download

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