Results 21 to 30 of about 1,125,521 (310)
Resonant plasmonic nanoparticles for multicolor second harmonic imaging [PDF]
, 2016 Nanoparticles capable of efficiently generating nonlinear optical signals, like second harmonic generation, are attracting a lot of attention as potential background-free and stable nano-probes for biological imaging.
Accanto, Nicolò +4 more
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Harmonic sets and the harmonic prime number theorem [PDF]
, 2005 We restrict primes and prime powers to sets H(x)= U∞n=1 (x/2n, x/(2n-1)). Let θH(x)= ∑ pεH(x)log p. Then the error in θH(x) has, unconditionally, the expected order of magnitude θH (x)= xlog2 + O(√x). However, if ψH(x)= ∑pmε H(x) log p then ψH(x)= xlog2+
Broughan, Kevin A., Casey, Rory J.
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A unified representation of some starlike and convex harmonic functions with negative coefficients [PDF]
Opuscula Mathematica, 2013 In this paper we introduce a unified representation of starlike and convex harmonic functions with negative coefficients, related to uniformly starlike and uniformly convex analytic functions.
R. M. El-Ashwah +3 more
doaj +1 more source
Phasor-Based Assessment for Harmonic Sources in Distribution Networks [PDF]
, 2020 Phasor-based interdependencies of multiple harmonic sources, especially Distributed Energy Resources, on distribution networks are analyzed in this paper. A new index, Phasor Harmonic Index (IPH), is proposed by the authors.
Arghandeh, R. +5 more
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A Two-stage approach to harmonic rejection mixing using blind interference cancelling [PDF]
, 2008 Current analog harmonic rejection mixers typically provide 30–40 dB of harmonic rejection, which is often not sufficient. We present a mixed analog-digital approach to harmonic rejection mixing that uses a digital interference canceler to reject the ...
Klumperink, E.A.M. +2 more
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Some Properties of Certain Multivalent Harmonic Functions
Mathematics, 2023 In this paper, various features of a new class of normalized multivalent harmonic functions in the open unit disk are analyzed, including bounds on coefficients, growth estimations, starlikeness and convexity radii.
Georgia Irina Oros +2 more
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Design of new robust backstepping control for three-phase grid-connected fourleg source voltage PWM converters [PDF]
Metrology and Measurement Systems, 2023 Due to high performance demands of grid-connected pulse-width modulation (PWM) converters in power applications, backstepping control (BSC) has drawn wide research interest for its advantages, including high robustness against parametric variations and ...
Ali Chebabhi, Abdelhalim Kessal
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Mathematics, 2021 Passive power filters (PPFs) are most effective in mitigating harmonic pollution from power systems; however, the design of PPFs involves several objectives, which makes them a complex multiple-objective optimization problem. This study proposes a method
Nien-Che Yang +2 more
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Harmonic analysis of harmonic functions in the plane [PDF]
Proceedings of the American Mathematical Society, 1976 A continuous function on the complex plane is harmonic if and only if the span of its compositions with entire functions is not dense in the space of continuous functions in the topology of uniform convergence on compact sets.
openaire +2 more sources
A construction of conformal-harmonic maps [PDF]
, 2011 Conformal harmonic maps from a 4-dimensional conformal manifold to a Riemannian manifold are maps satisfying a certain conformally invariant fourth order equation.
Biquard, Olivier, Madani, Farid
core +5 more sources