Results 131 to 140 of about 4,596,905 (360)
Real-time exercise stress cardiac MRI with Fourier-series reconstruction from golden-angle radial data. [PDF]
Magn Reson Imaging, 2021 Li YY +10 more
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Fourier expansions for a logarithmic fundamental solution of the polyharmonic equation
, 2012 In even-dimensional Euclidean space for integer powers of the Laplacian greater than or equal to the dimension divided by two, a fundamental solution for the polyharmonic equation has logarithmic behavior.
Cohl, Howard S.
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On the Summability of Fourier's Series [PDF]
Proceedings of the London Mathematical Society, 1913 n ...
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Superionic Disulfonic Acid Polymers
Advanced Functional Materials, EarlyView.A strategy is presented to enhance the mechanical and ion transport properties of acid‐functionalized polymers through controlled polymerizations of precisely designed disulfonic acid monomers with well‐defined functional group arrangements. This approach allows for fine control over molecular interactions, and unexpected hydrophobic characteristics ...
Xuelang Gao +5 more
wiley +1 more source
Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics
Advanced Functional Materials, EarlyView.The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li +15 more
wiley +1 more source
On the strong summability of the derived Fourier series and its conjugate series [PDF]
, 1952 B. N. Prasad, U. N. Singh
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On the divergence of Fourier series [PDF]
Proceedings of the American Mathematical Society, 1958 1. By a well known theorem of Kolmogoroff there is a function whose Fourier series diverges almost everywhere. Actually, Kolmogoroff's proof was later generalized so that the Fourier series diverged everywhere [2, p. 175]; but we shall be concerned only with the almost everywhere theorem here. The proof involves rather severe restrictions on the orders
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Advanced Functional Materials, EarlyView.The Janus membrane integrates a superhydrophilic CNF@CTAB‐MXene layer with a superhydrophobic PTFE layer, enabling efficient solar‐driven water evaporation and electricity generation. It achieves an evaporation rate of 1.51 kg m−2 h−1 with excellent salt resistance and long‐term stability.
Yinan Li +7 more
wiley +1 more source
?Coefficient properties of Fourier series with a gap condition? [PDF]
, 1954 M. E. Noble
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