Results 251 to 260 of about 3,457 (281)

Physical Variational Principle and Governing Equations

2013
In this chapter, the physical variational principle is used to derive the governing equations of the nonlinear and linear electroelastic analyses in piezoelectric and pyroelectric materials. Some kinds of the physical variational principle are given. Applying the migratory variation of electric potential, the general expression of the static electric ...
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Physical Principles of the Displacement Cardiograph Including a New Device Sensitive to Variations in Torso Resistivity

IEEE Transactions on Biomedical Engineering, 1981
The displacement cardiograph (DCG) is a noncontacting device which senses displacements associated with the cardiac cycle through a high-frequency electromagnetic field interaction between a sensing coil and the thorax. The coil is located in the tuning circuit of an oscillator, and perturbations in the oscillation frequency, i.e., frequency quency ...
D L, Wilson, D B, Geselowitz
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A variational inequality principle in solid mechanics and application in physically non‐linear problems

Communications in Applied Numerical Methods, 1990
AbstractA variational inequality principle which is suitable for various constitutive laws of elasto‐plasticity is given in this paper. Then the variational inequality is reduced to a linear complementary problem by using incremental theory and the finite‐element methods.
Sha Desong, Sun Huanchun, Zhang Zhongding, Yin Fuxin   +3 more
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Variational Principles in Soliton Physics

2023
Laedke, Ernst Wolfgang, Spatschek, Karl H.   +1 more
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Variational Principle in Statistical Physics

Russian Journal of Physical Chemistry A, 2022
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Variational principle of the zig-zag optical lattice model in quantum physics

Modern Physics Letters A
The zig-zag optical lattice model, which plays a major role in quantum physics, is considered in this research. With the aid of the semi-inverse method (SIM), the variational principle (VP) is developed via introducing the trial-Lagrange function (TLF).
Kang-Jia Wang, Kang-Hua Yan, Shuai Li
openaire   +1 more source

Definitive variational principles for physical quantities

Theoretical and Experimental Chemistry, 1970
P. A. Braun, T. K. Rebane
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Definitive variational principles for physical quantities

Theoretical and Experimental Chemistry, 1971
P. A. Braun, T. K. Rebane
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Semi-martingale driven variational principles

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
Oliver D Street, D Crisan
exaly  

Stochastic variational principles for the collisional Vlasov–Maxwell and Vlasov–Poisson equations

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
Tomasz M Tyranowski
exaly