Results 11 to 20 of about 7,492,402 (305)
Phase Retrieval: Uniqueness and Stability [PDF]
SIAM Review, 2020 The problem of phase retrieval, i.e., the problem of recovering a function from the magnitudes of its Fourier transform, naturally arises in various fields of physics, such as astronomy, radar, speech recognition, quantum mechanics, and, perhaps most prominently, diffraction imaging.
Philipp Grohs +2 more
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Stabilizing the blue phases [PDF]
Physical Review E, 2006 We present an investigation of the phase diagram of cholesteric liquid crystals within the framework of Landau - de Gennes theory. The free energy is modified to incorporate all three Frank elastic constants and to allow for a temperature dependent pitch in the cholesteric phase. It is found that the region of stability of the cubic blue phases depends
Alexander, G, Yeomans, J
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Some remarks on stability for a phase-field model with memory [PDF]
, 2006 The phase field system with memory can be viewed as a phenomenological extension of the classical phase equations in which memory effects have been taken into account in both fields.
Novick-Cohen, A. +3 more
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Phase Stability and Elasticity of TiAlN [PDF]
Materials, 2011 We review results of recent combined theoretical and experimental studies of Ti1−xAlxN, an archetypical alloy system material for hard-coating applications. Theoretical simulations of lattice parameters, mixing enthalpies, and elastic properties are presented.
Abrikosov, Igor +6 more
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, 2023 Background: Heterodyne interferometry offers an exciting solution for achieving sub-nanometer or ten-picometer-order mechanical displacement measurements because of its high resolution and noise immunity.
Thanh Dong Nguyen +3 more
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Phase Stability of the Tin Monochalcogenides SnS and SnSe: A Quasi-Harmonic Lattice-Dynamics Study [PDF]
, 2021 The tin monochalcogenides SnS and SnSe adopt four different crystal structures, viz. orthorhombic Pnma and Cmcm and cubic rocksalt and π-cubic (P213) phases, each of which has optimal properties for a range of potential applications.
Ioanna, Pallikara, Jonathan, Skelton
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Phase Evolution of the AlxNbTiVZr (x = 0; 0.5; 1; 1.5) High Entropy Alloys
Metals, 2016 AlxNbTiVZr (x = 0; 0.5; 1; 1.5) high entropy alloys were fabricated by vacuum arc melting and annealed at 1200 °C for 24 h. The NbTiVZr alloy had single body centered cubic (bcc) solid solution phase after annealing at 1200 °C, while, in the Al ...
Nikita Y. Yurchenko +3 more
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Brownmillerites CaFeO2.5 and SrFeO2.5 as Catalyst Support for CO Oxidation
Molecules, 2021 The support material can play an important role in oxidation catalysis, notably for CO oxidation. Here, we study two materials of the Brownmillerite family, CaFeO2.5 and SrFeO2.5, as one example of a stoichiometric phase (CaFeO2.5, CFO) and one existing ...
Pierre-Alexis Répécaud +6 more
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Stability of phase retrievable frames [PDF]
SPIE Proceedings, 2013 In this paper we study the property of phase retrievability by redundant sysems of vectors under perturbations of the frame set. Specifically we show that if a set $\fc$ of $m$ vectors in the complex Hilbert space of dimension n allows for vector reconstruction from magnitudes of its coefficients, then there is a perturbation bound $ρ$ so that any ...
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Phase stability and mechanical response of tantalum nitrides to electronic excitation effect
Materials Research Express, 2020 Based on an analysis ofelectronic structures and phonon spectra calculationsas a function of electronic temperature T _e using the density functional theory, we investigated the phase stability and mechanical responseto electronic excitation effect on ...
Gai-Qin Yan, Xin-Lu Cheng, Hong Zhang
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