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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
In the early 1960s research into radar signal synthesis produced important formulas describing the action of the two-dimensional Fourier transform on auto- and crossambiguity surfaces.
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It is shown that the one-dimensional sampling sets correspond to Bessel sequences of complex exponentials that are not Riesz bases for $L^2[-R,R].$ A signal processing application in which such sampling sets arise naturally is described in detail.
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Given a bandlimited signal, we consider the sampling of the signal and some of its derivatives in a periodic manner.
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We present a method for finding the dual frame and, thereby, a method for reconstructing the signal from its samples.
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We show that if no sampling of the signal itself is involved, the sampling is not stable and cannot be stabilized by oversampling.
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They are potential tools for the decomposition and handling of signals that, like speech or music, seem over short intervals to have well-defined frequencies that, however, change with time.
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Multiresolution Analysis and Multivariate Approximation of Smooth Signals in CB(Rd
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Frame Analysis of Irregular Periodic Sampling of Signals and Their Derivatives
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Unique reconstruction of band-limited signals by a Mallat-Zhong wavelet transform algorithm
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The radar ambiguity function plays a central role in the theory of radar signals.
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Alpha2-Adrenergic Receptors in Intestinal Epithelial Cells: Mechanisms of Signaling, Role, and Regulation
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Alpha2-Adrenergic Receptors in Intestinal Epithelial Cells: Mechanisms of Signaling, Role, and Regulation
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Sef is a transmembrane protein inhibiting FGF signaling.
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The results suggested that ZNF569 protein might act as a transcriptional repressor in MARK signaling pathway to regulate cellular processes.
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The aim of this research was to explore the effects and signaling pathway of ultraviolet-B (UVB) irradiation on the expression of hypoxia-inducible factor 1α (HIF-1α) and transferrin receptor (TfR).
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Unlike the As2Se3 glass, for which the signal intensity increases almost linearly with an increase in the irradiation dose, the curves I(D) for ternary glasses are characterized by saturation dependent on the copper content in the network.
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In comparison with a single-crystal monochromator, this device offers a 3.3-fold increase signal intensity and a slightly (1.5 times) worse resolution.
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EXAFS and XANES data indicate an increase in the signal intensity in the Ti-Ti direction and a decrease in electron density on titanium atoms for [TiFe0.95Zr0.03Mo0.02]H0.36.
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This is a process of complex bioexponential kinetics presented in spin diffusion spectra as a change in water signal intensity dependent on the protein postexcitation time.
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The temperature dependence of the signal intensity from humid samples shows a decrease in temperature of freezing of the adsorbed water and presence of unfrozen water.
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