نتایج جستجو برای: hybrid of fourier transform
تعداد نتایج: 21206929 فیلتر نتایج به سال:
Let Fq be the finite field with q elements and let ! be a primitive n-th root of unity in an extension eld Fqd of Fq. Given a polynomial P 2 Fq[x] of degree less than n, we will show that its discrete Fourier transform (P (1); P (!); :::; P (!n¡1)) 2Fqd n can be computed essentially d times faster than the discrete Fourier transform of a polynomial Q 2 Fqd[x] of degree less than n, in many case...
insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...
This chapter covers the fundamental principles and current applications of Fourier transform (FT) infrared and Fourier transform Raman spectroscopies as utilized in the analysis of polymeric materials. The primary emphasis of the first part is on the principles and advantages of these interferometric methods, whereas the remaining sections illustrate numerous applications focusing on the struct...
FTIR ) Fourier transform infrared) is a powerful tool for biological studies. It could be used for samples in different physical status. Prior researchers have studied biological characteristics of proteins, lipids, biologic membranes, carbohydrates, drugs, etc with this unique technique. The following article addresses some of the common applications of FTIR ( Fourier transform infrared).
in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...
this study focuses on tracing the clearly defined elements of magic realism in toni morrison’s song of solomon as an illustrious african american example of the mode. magic realism is a fictional technique that combines fantasy with raw physical reality in a search for truth beyond that available from the surface of everyday life. toni morrison, as a distinguished african-american practitioner ...
The discrete Fourier transform is one of the top ten algorithms of the 20-th century, frequently used in the analysis of signals. It is known to be very stable and of low computational complexity. When the bandwidth is large or the spectrum is sparse, sampling at the Shannon-Nyquist rate may however be prohibitive. We propose a new hybrid technique that exploits the spectral sparsity. Several s...
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