摘要: By virtue of the "invariant eigen-operator" method which originates from the Heisenberg equation of motion, we derive energy-level gap of some dynamic Hamiltonians in many particle physics, which includes a Tomonaga model and spin wave model.关键词:...
We use the Lagrangian theory to reformulate equation (1). Given the definition of the kinetic energy and ackno...Frank Thomas Tveter. Deriving the hamilton equations of motion for a nonconservative system using a variational principle. J. Math. Phys, 39(3):1495-1500, March 1998....
Maxwell's equations in the Newtonian gravitational field derived from the elastic energy The Adams–Williamson equation adeptly characterizes the pressure distribution within Earth's interior, highlighting the role of pressure in storing elasti... N Kohiyama - 《Physics Essays》 被引量: 0发表: 2024...
Specifically, by determining the cyclist's mass (weight) at block 42, and with the already acquired angular velocity information, the computer 28 can solve the following equation: δH = (δpower x time - K 1 - - l/2m δv 2 )/m x g; in meters (Eqn. 5). In the above equation...
Kinetic theory of gasesEquations of changeBoltzmann equationSingle-component gasesMulticomponent gasesReacting mixturesThis paper examines the mathematical operations performed developing the macroscopic equations of change for total mass, species mass, momentum and energy starting from the microscopic Boltzmann ...
It is also assumed that the dispersed phase is well described by a `Boltzmann-type' equation and Eulerian `continuity', momentum and fluctuating kinetic energy equations for the dispersed phase are obtained. A k-epsiv turbulence model for the continuous phase is used. A gradient transport model ...
We introduce a new method for deriving the time-dependent Hartree or Hartree-Fock equations as an effective mean-field dynamics from the microscopic Schrdinger equation for fermionic many-particle systems in quantum mechanics. The method is an adaption of the method used in Pickl (Lett. Math. ...
It is also assumed that the dispersed phase is well described by a "Boltzmann-type" equation and Eulerian "continuity", momentum and fluctuating kinetic energy equations for the dispersed phase are obtained. A k - turbulence model for the continuous phase is used. A gradient transport model is...
The shaded fractions were calculated for each orientation of the envelope, with the movement directions of the kinetic façade classified into the longitudinal, rotational, and opening/closing directions according to operation mode. A shaded fraction estimation equation having a movement step (β) as...
The model is run operationally at 6.6 and 2.2 km horizontal resolution, respectively and uses a 1.5 order turbulence closure with a prognostic equation for turbulent kinetic energy. Both versions of the COSMO model are coupled off-line with a Lagrangian particle dispersion model (LPDM). The aim ...