Results 41 to 50 of about 77,241 (265)
Deterministic Signal Processing Techniques for OFDM-Based Radar Sensing: An Overview
IEEE Access, 2023 In this manuscript, we analyze the most relevant classes of deterministic signal processing methods currently available for the detection and the estimation of multiple targets in a joint communication and sensing system employing orthogonal frequency ...
Michele Mirabella +3 more
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Analysis of Ledger-Stand Joints in the Aluminum Modular Scaffold
Archives of Civil Engineering, 2017 This paper concerns an approach to model the ledger-stand joints of modular scaffolds. Based on the analysis of the working range of the ledger (represented by a linear relationship between load and displacement), two models of the ledger-stand joint are
Błazik-Borowa E. +4 more
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Joint numerical ranges for unbounded normal operators [PDF]
Proceedings of the Edinburgh Mathematical Society, 1985 For bounded operators, the theory of the joint numerical range has been developed by various authors [1,2,3,4,5]. Especially, the properties of commuting normal n-tuples are discussed in detail. Our purpose here is to show that many results in the above references still hold in the case of unbounded normal operators (see Theorem 2.3, Corrollary 3.5 ...
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FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Joint numerical range and its generating hypersurface
Linear Algebra and its Applications, 2010 The authors consider the joint numerical range \(W(H_1, \dots, H_n)\) of \(m\)-tuples of Hermitian matrices. Associated with an~\(m\)-tuple \(H_1, \dots, H_n\) there is the homogeneous polynomial \[ F(y_0,\dots, y_m) = \det (y_0I_n+ y_1H_1 + \dots + y_mH_m), \] which may be looked upon as a~hyperbolic form with respect to the point \((1, 0, 0, \dots, 0)
Chien, Mao-Ting, Nakazato, Hiroshi
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Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Numerical Shear Tests on the Scale Effect of Rock Joints under CNL and CND Conditions
Advances in Civil Engineering, 2020 The scale effect of rock joint shear behavior is an important subject in the field of rock mechanics. There is yet a lack of consensus regarding whether the shear strength of rock joints increases, decreases, or remains unchanged as the joint size ...
Xige Liu, Wancheng Zhu, Lankun Li
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Joint phase error estimation and sparse scene restoration algorithms for frequency agile radar
IET Radar, Sonar & Navigation, 2021 Frequency agile radar (FAR) systems have been demonstrated to have outstanding performance in electronic counter‐countermeasures (ECCM). With increased bandwidth in which FAR can switch carrier frequency, the phase errorswill appear at the corresponding ...
Zhiting Fei +3 more
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Fractal Model of Contact Thermal Stiffness
Machines, 2022 The continuity, self-similarity, and self-affinity of a microscopic contact surface can be described by the Weierstrass–Mandelbrot (W–M) function in fractal theory. To address the problems that the existing normal contact load fractal model does not take
Yunshuai Chen +4 more
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The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source