Results 291 to 300 of about 178,933 (313)

The Hydrostatic Equation and Adiabatic Processes

2021
In addition to obeying the Ideal Gas Law and principles of adiabatic motion, air moves vertically based on the principles described in the hydrostatic equation, which relates height differences in a static atmosphere to the vertical pressure change over those differences.
Robert V. Rohli, Chunyan Li
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Pressure and Adiabatic Processes

2009
According to Chap. 5 a quantity, which may meaningfully be termed “pressure,” is required to exist, at least in equilibrium. This variable relies on a process, in which some extensive quantity changes while entropy remains invariant (adiabatic processes). Here a definition of pressure based on the quantum microstate is given.
Mathias Michel, Günter Mahler, Jochen Gemmer   +2 more
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On fluctuations in an adiabatic process

Physics Letters A, 1971
Abstract Formulas for time-independent fluctuations are obtained which differ from the canonical ensemble expressions if the heat capacity of the system changes in the adiabatic process.
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Diabatic and adiabatic processes in photochemistry [PDF]

Pure and Applied Chemistry, 1970
Abstract
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Statistical mechanics of adiabatic processes

Physica, 1964
Abstract The thermodynamic equivalence of an Ehrenfest adiabatic process and an isentropic process is investigated by examining the difference between the susceptibilities calculated under isentropic and Ehrenfest adiabatic conditions. It is found that except under quite restrictive conditions this difference does not vanish.
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Adiabatic magnetization processes

IEEE Transactions on Magnetics, 1995
Magnetization processes are investigated in connection with the heat transfer to the lattice. The temperature was measured of a heat-insulated sample in the course of virgin curves, hysteresis- and minor loops. Thus it is possible to separate reversible and irreversible contributions. The dissipation of magnetization energy is located at the coercivity
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Adiabatic light processing devices

SPIE Proceedings, 2006
The majority of optical processing devices that are employed in optical transmission systems are based on optical fibres or planar optical waveguides that rely on basic physical phenomena such as coupling, interference or Bragg grating reflection for their functionality.
John D. Love, Andrew Molloy, Adrian Ankiewicz   +2 more
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An adiabatic reversible process

American Journal of Physics, 1988
It is argued that an adiabatic reversible process is a subtle thermodynamical concept. It is then shown how such a process may be constructed for the special case of an ideal gas enclosed in a rigid cylinder surrounded by adiabatic walls fitted with a piston that slides without friction.
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Adiabatic processes in three-level systems

Physical Review A, 1996
In this paper we consider the adiabatic transfer in three-level systems using the counterintuitive pulse sequence, the stimulated Raman process (STIRAP). We consider explicitly the nonadiabatic corrections to the ideal case. The problem simplifies when we use certain pulse types extending to infinity, ramp pulses.
Timo A. Laine, Stig Stenholm
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Adiabatic processes in frequency conversion

Laser & Photonics Reviews, 2013
Adiabatic evolution, an important dynamical process in a variety of classical and quantum systems providing a robust way of steering a system into a desired state [1-5], was introduced only recently to frequency conversion [6-9]. Adiabatic frequency conversion allowed the achievement of efficient scalable broadband frequency conversion [8, 9] and was ...
Haim Suchowski, Gil Porat, Ady Arie
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