Results 51 to 60 of about 102 (101)
Some of the next articles are maybe not open access.
The Leading Edge, 2002
I have been trying for some time now to write about phase. Sounds easy enough, but the more I think about it, the less easy it gets. I think I know why. Phase is one of those technical terms that has way too many meanings attached to it. Sheriff's dictionary gives four primary definitions of the word, and no less than 20 more derivative definitions.
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I have been trying for some time now to write about phase. Sounds easy enough, but the more I think about it, the less easy it gets. I think I know why. Phase is one of those technical terms that has way too many meanings attached to it. Sheriff's dictionary gives four primary definitions of the word, and no less than 20 more derivative definitions.
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Arbitrary phase shifters with decreasing phase
2015 38th International Conference on Telecommunications and Signal Processing (TSP), 2015This paper describes a new class of the versatile network elements for analog signal processing; two-ports with frequency dependent phase shift which starts with arbitrary value and tends towards different but still arbitrary value. Speaking in terms of the complex frequency response plotted in polar coordinates the characteristics can connect any two ...
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Pancharatnam Phase and Berry Phase
2018The Indian physicist S. Pancharatnam, working in quantum Optics in 1956, introduced the novel concept of a geometrical phase. Let \(H(\xi )\) denote a Hamiltonian that depends on some parameters \(\xi \), with ground state \(|\psi (\xi )\rangle \). One can define a phase difference \(\varDelta \varphi _{12}\) between two ground states \(|\psi (\xi _{1})
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Coming phase to phase with surfactants. [PDF]
, 2011 We introduce a fast cellular automata model for the simulation of surfactant dynamics based on a previous model by Ono and Ikegami (2001). Here, individual lipid-like particles undergo stochastic movement and rotation on a two-dimensional lattice in response to potential energy gradients.
Bartlett, Stuart, Bullock, Seth
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Phase-Space Approach to Berry Phases
Open Systems & Information Dynamics, 2006We propose a new formula for the adiabatic Berry phase which is based on phase-space formulation of quantum mechanics. This approach sheds a new light onto the correspondence between classical and quantum adiabatic phases — both phases are related with the averaging procedure: Hannay angle with averaging over the classical torus and Berry phase with ...
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Physics Today, 1982
In this first sentence of his seminal book “The Physics of Liquid Crystals,” Pierre Gilles de Gennes has succinctly stated the appeal that liquid crystals have for all of us working in this field. The term “liquid crystal,” in fact, refers to a number of distinct states of matter that have structural order intermediate between that of conventional ...
J. David Litster, Robert J. Birgeneau
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In this first sentence of his seminal book “The Physics of Liquid Crystals,” Pierre Gilles de Gennes has succinctly stated the appeal that liquid crystals have for all of us working in this field. The term “liquid crystal,” in fact, refers to a number of distinct states of matter that have structural order intermediate between that of conventional ...
J. David Litster, Robert J. Birgeneau
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The Modern Language Journal, 1979
T IS the purpose of this paper to explore critically the individual steps or phases commonly postulated in foreign-language teaching (FLT), and their relations to one another. In recent years, the literature critical of much current practice in FLT has grown considerably.
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T IS the purpose of this paper to explore critically the individual steps or phases commonly postulated in foreign-language teaching (FLT), and their relations to one another. In recent years, the literature critical of much current practice in FLT has grown considerably.
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Phase Coexistence in a Dynamic Phase Diagram
ChemPhysChem, 2015AbstractMetastability and phase coexistence are important concepts in colloidal science. Typically, the phase diagram of colloidal systems is considered at the equilibrium without the presence of an external field. However, several studies have reported phase transition under mechanical deformation.
Gentile L +5 more
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Phase Unwrapping with Phase-Singularity Spreading
2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006We propose a novel phase unwrapping method where we spread the singularity in phase map with fractional phase compensators. We find that the obtained digital elevation maps have higher quality than those obtained in conventional network programming method. In addition, the calculation cost is very small.
Akira Hirose 0001, Ryo Yamaki
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Phase Equilibria, Phase Changes and Phase Characteristics
1979In the first volume we had studied the characteristics and molecular make-up of gas, liquid and solid phases but had postponed, for now, the organized study of systems in which two or more phases occur together in equilibrium.
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