A specific form of the inertial law is presented by which we can gain a deeper insight into the essence of mass and inertia. In this modified theory, there is no need to keep the concept of absolute space and Newton's third law as principles, By introducing a convenient form for gravitational law the coupling constant G becomes a function of inertial parameters of the universe

The ion mobilities and their respective masses of several classes of amines (primary, secondary, and tertiary) were measured by electrospray ionization atmospheric pressure ion mobility time-of-flight mass spectrometry IM(tof)MS. The experimental data obtained were comparatively analyzed by the one-temperature kinetic theory of Chapman-Enskog. Several theoretical models were used to estimate th...

This paper briefly presents some of the main theories of ethics and then illustrates their application to a case study of the application of new technology in the form of genetically modified organisms. The case study illustrates the differences between the different ethical theories and the need for a more wide ranging 'multicriteria' theory of ethics. Copyright © 2002 IFAC

We report the study of a fluid of hard-disk particles in a contracting cavity. Under supersonic contraction speed, a shock wave converges to the center of the cavity where it implodes, creating a central peak in temperature. The dynamics of the fluid is studied by solving the Euler and Navier-Stokes equations, as well as by molecular dynamics simulations and the Enskog direct simulation Monte C...

We present a general methodology for constructing lattice Boltzmann models of hydrodynamics with certain desired features of statistical physics and kinetic theory. We show how a methodology of linear programming theory, known as Fourier-Motzkin elimination, provides an important tool for visualizing the state space of lattice Boltzmann algorithms that conserve a given set of moments of the dis...

in this article, the crystallization of polyethylene is investigated by the modified weighted density approximation. also, a direct correlation function of polyethylene based on the rism theory is used. the free energy of a polyethylene is calculated using the density functional theory. the crystallization and also the solid and liquid densities of polyethylene are calculated and compared with ...

K e y w o r d s K i n e t i c equations, Navier-Stokes system, Singularly perturbed problem, Hydrodynamic limit. The Boltzmann equation, in the hydrodynamic limit, as both the Knudsen number and the Mach number are of the same order and tend to 0, is consistent with the incompressible NavierStokes equation (set [1-a]). Our aim is to study the incompressible macroscopic limit for the Enskog kine...