It is known that the adiabatic approximation in time-dependent density functional theory usually provides a good description of low-lying excitations of molecules. In the present work, the capability of the adiabatic nonempirical meta-generalized gradient approximation (meta-GGA) of Tao, Perdew, Staroverov, and Scuseria (TPSS) to describe atomic and molecular excitations is tested. The adiabati...

The one dimension computational model of a sequential injection engine, which runs on compressed natural gas (CNG) with spark ignition, is developed for this study, to simulate the performance of gas flow pressure profile, under various speed conditions. The computational model is used to simulate and study of the steady state and transient processes of the intake manifold. The sequential injec...

As the density and operating speed of complementary metal oxide semiconductor (CMOS) circuits increases, dynamic power dissipation has become a concern in the design of VLSI circuits. This paper presents a Two-Phase Adiabatic Static Clocked Logic (2PASCL) which shows the lowest power dissipation among different adiabatic logic families based on energy recovery principle. In adiabatic switching ...

An alternative interpretation of the quantum adiabatic approximation is presented. This interpretation is based on the ideas originally advocated by David Bohm in his quest for establishing a hidden variable alternative to quantum mechanics. It indicates that the validity of the quantum adiabatic approximation is a sufficient condition for the separability of the quantum action function in the ...

Most so-called “adiabatic” digital logic circuit families reported in the low-power design literature are actually not truly adiabatic, in that they do not satisfy the general definition of adiabatic physical processes, as ones whose energy dissipation tends towards zero as their speed and/or parasitic interactions are decreased. Yet, the need for truly adiabatic design can be proven to be a ke...

Adiabatic process in thermodynamics transfers energy across zero temperature difference. The adiabatic CMOS design style attempts to switch a transistor to transfer energy across its source and drain while the voltage difference is zero. We define an adiabatic microarchitecture that pushes instructions across zero IPC gradient. The IPC gradient can be zero across time: for the same stage IPC ov...

The dependence of some thermodynamic properties of spin-polarized liquid 3He such as velocity of sound, adiabatic index, isentropic compressibility and temperature on the spin polarization has been investigated along different isentropic paths. The Lennard-Jones potential has been used in our calculations. It has been found that for higher values of entropy, the spin polarization has greate...