Xem 1-8 trên 8 kết quả Power spectra
  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí lâm nghiệp đề tài: An approach for the analysis of vegetation spectra using non-linear mixed modeling of truncated power spectra...

    pdf9p toshiba4 20-09-2011 20 2   Download

  • This chapter reviews some of the basic magnitudes of solar radiation and some of the basics of PSpice. A brief description of a photovoltaic system is followed by definitions of spectral irradiance, irradiance and solar radiation. Basic commands and syntax of the sentences most commonly used in this book are shortly summarized and used to write PSpice files for the AM1 SG and AM0 sun spectra, which are used to plot the values of the spectral irradiance as a function of the wavelength and compare them with a black body radiation.

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  • Adaptation We have already learned about many different types of systems. We started with frequency selective filters and filters designed for their time-domain properties. Then we saw nonfilters that had capabilities that filters lack, such as PLLs that can lock onto desired frequency components. Next we saw how to match a filter to a prespecified signal in order to best detect that signal. We have even glimpsed higher-order signal processing systems that can differentiate between signals with identical power spectra....

    pdf33p doroxon 16-08-2010 30 2   Download

  • Conventional and saturation transfer electron paramagnetic resonance spectroscopy (EPR and ST EPR) was used to study the orientation of probe molecules in muscle fibers in different intermediate states of the ATP hydrolysis cycle. A separate procedure was used to obtain ST EPR spectra with precise phase settings even in the case of samples with low spectral intensity. Fibers prepared from rabbit psoas muscle were labeled with isothiocyanate spin labels at the reactive thiol sites of the catalytic domain of myosin....

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  • Important Notions and Definitions Random Processes • Spectra of Deterministic Signals • Spectra of Random Processes 14.3 The Problem of Power Spectrum Estimation 14.

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  • It is difficult to overemphasize the importance of magnetic resonance techniques in chemistry. Experimental spectra can usually be successfully interpreted empirically, but more difficult cases require a prediction based on the electronic structure. In the last 25 years the calculation of magnetic resonance parameters from first principles has become a powerful research tool that can significantly enhance the utility of magnetic resonance techniques when empirical interpretations are insufficient.

    pdf602p echbuon 02-11-2012 22 6   Download

  • This book has evolved from over a quarter-century of research that concentrated on delineating the aqueous coordination reactions that characterize the vanadium(V) oxidation state. At the beginning of this time period, only a minor amount of research was being done on vanadium aqueous chemistry. However, the basic tenets of 51 V NMR spectroscopy were being elaborated, and some of the influences of ligand properties and coordination geometry on the NMR spectra were being ascertained.

    pdf266p mnemosyne75 02-02-2013 16 4   Download

  • The hole closing reported in this letter is certainly not caused by deposition of carbon-rich material by the electron beam, a common phenomenon in electron microscopy. The observation that large pores expand is in direct contradiction with potential contamination growth. Secondly, electron-energy-loss spectra (EELS) locally obtained on the material that filled a nanopore clearly show the presence of silicon and oxygen,but the absence of any carbon (detection limit was less than 2%).

    pdf23p quynho77 13-11-2012 6 0   Download

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