Results 31 to 40 of about 5,007,076 (313)

Energy, Exergy, Entropy Generation Minimization, and Exergoenvironmental Analyses of Energy Systems-A Mini-Review

open access: yesFrontiers in Sustainability, 2022
Meeting the growing energy demands has become a crucial challenge, which should employ energy integration and benefit from the extraction of the maximum thermodynamic potential of the resources consumed.
Juan C. Ordonez   +2 more
doaj   +1 more source

Hierarchical Structure of Generalized Thermodynamic and Informational Entropy

open access: yesEntropy, 2018
The present research aimed at discussing the thermodynamic and informational aspects of entropy concept to propose a unitary perspective of its definitions as an inherent property of any system in any state.
Pierfrancesco Palazzo
doaj   +1 more source

Classical Scalar Fields and the Generalized Second Law [PDF]

open access: yes, 2001
It has been shown that classical non-minimally coupled scalar fields can violate all of the standard energy conditions in general relativity. Violations of the null and averaged null energy conditions obtainable with such fields have been suggested as ...
B. P. Jensen   +35 more
core   +1 more source

A formulação ab-initio da segunda lei da termodinâmica The ab-initio formulation of the second law of thermodynamics

open access: yesQuímica Nova, 1998
This paper deals with Carathédory's formulation of the second law of thermodynamics. The material is presented in a didatical way, which allows a second year undergraduate student to follow the formalism.
J. P. Braga
doaj   +1 more source

Quantum Game Beats Classical Odds—Thermodynamics Implications

open access: yesEntropy, 2015
A quantum game is described making use of coins embodied as entangled Fermions in a potential energy well. It is shown that the odds are affected by the Pauli Exclusion Principle.
George Levy
doaj   +1 more source

Discipline in Thermodynamics

open access: yesEnergies, 2020
Thermodynamics is a discipline, with unambiguous concepts, words, laws and usefulness. Today it is in danger of becoming a Tower of Babel. Its key words are being pasted brazenly on new concepts, to promote them with no respect for their proper meaning ...
Adrian Bejan
doaj   +1 more source

Newton's Second Law [PDF]

open access: yes
This lesson introduces students to Sir Isaac Newton's Second Law of Motion. Topics include the two ways to study the dynamics of a system in which there is motion, a brief description of Newton's work in studying and measuring the motion of objects, and ...
John Pratte
core   +1 more source

Thermodynamic Analysis of Closed Steady or Cyclic Systems

open access: yesEntropy, 2015
Closed, steady or cyclic thermodynamic systems, which have temperature variations over their boundaries, can represent an extremely large range of plants, devices or natural objects, such as combined heating, cooling and power plants, computers and data ...
Jim McGovern
doaj   +1 more source

Decoherence, Chaos, and the Second Law

open access: yes, 1994
We investigate implications of decoherence for quantum systems which are classically chaotic. We show that, in open systems, the rate of von Neumann entropy production quickly reaches an asymptotic value which is: (i) independent of the system ...
A. O. Caldeira   +25 more
core   +2 more sources

50 Years After the 25th Amendment: How to Improve Presidential Succession [PDF]

open access: yes, 2019
Pamphlet summarizing the Second Succession Clinic\u27s ...
Second Fordham University School of Law Clinic on Presidential Succession
core   +1 more source

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