Results 1 to 10 of about 63,636 (293)

Frustrated magnetism and caloric effects in Mn-based antiperovskite Nitrides : Ab Initio theory [PDF]

open access: yesPhysical Review B, 2017
We model changes of magnetic ordering in Mn-antiperovskite nitrides driven by biaxial lattice strain at zero and at finite temperature. We employ a non-collinear spin-polarised density functional theory to compare the response of the geometrically ...
Banerjee, R.   +5 more
core   +4 more sources

Compositional Effects on Chemical Ordering, Local Atomic Pressure and Thermal Stability in Truncated Octahedral Pd-Ir-Rh Trimetallic Nanoalloys [PDF]

open access: yesNanomaterials
This study presents a comprehensive atomistic investigation of the structural, mechanical, and thermal properties of Pd60IrnRh19−n trimetallic nanoclusters adopting a truncated octahedral geometry.
Tuğba Göcen
doaj   +2 more sources

Carnot and the Archetype of Waterfalls [PDF]

open access: yesEntropy
Carnot treats Heat as a Force of Nature, with its typical fundamental characteristics of intensity and thermal tension (temperature and temperature difference), extension (amount of heat, i.e., caloric), and power.
Hans U. Fuchs   +2 more
doaj   +2 more sources

Carnot Theorem Revisited: A Critical Perspective [PDF]

open access: yesEntropy
After a brief review of Carnot’s everlasting contributions to the foundations of thermodynamics, we critically examine the consequences of the Carnot theorem, which leaves behind some lingering questions and confusion that persist even today. What is the
P. D. Gujrati
doaj   +2 more sources

Milankovitch, the father of paleoclimate modeling [PDF]

open access: yesClimate of the Past, 2021
The history of the long-term variations in the astronomical elements used in paleoclimate research shows that, contrary to what might be thought, Milutin Milankovitch is not the father of the astronomical theory but he is definitely the father of ...
A. Berger
doaj   +1 more source

A basis of resolutive sets for the heat equation: an elementary construction

open access: yesBruno Pini Mathematical Analysis Seminar, 2023
By an easy “trick” taken from the caloric polynomial theory, we prove the existence of a basis of the Euclidean topology whose elements are resolutive sets of the heat equation.
Alessia E. Kogoj, Ermanno Lanconelli
doaj   +1 more source

Brain More Resistant to Energy Restriction Than Body: A Systematic Review

open access: yesFrontiers in Neuroscience, 2021
The gluco-lipostatic theory and its modern variants assume that blood glucose and energy stores are controlled in closed-loop feedback processes. The Selfish Brain theory is based on the same assumptions, but additionally postulates that the brain, as an
Marie Sprengell   +2 more
doaj   +1 more source

Proximal Disruption of Brain Energy Supply Raises Systemic Blood Glucose: A Systematic Review

open access: yesFrontiers in Neuroscience, 2021
This work joins a series that methodically tests the predictions of the Selfish-Brain theory. The theory postulates a vital ability of the mammalian brain, namely to give priority to its own energy metabolism.
Marie Sprengell   +2 more
doaj   +1 more source

Weighing the importance of animal body size in traditional food systems

open access: yesFACETS, 2022
Traditional food systems based on harvest from the local environment are fundamental to the well-being of many communities, but their security is challenged by rapid socio-ecological change. We synthesized literature and data describing how a fundamental
Jeremy R. Brammer   +8 more
doaj   +1 more source

Action and Entropy in Heat Engines: An Action Revision of the Carnot Cycle

open access: yesEntropy, 2021
Despite the remarkable success of Carnot’s heat engine cycle in founding the discipline of thermodynamics two centuries ago, false viewpoints of his use of the caloric theory in the cycle linger, limiting his legacy.
Ivan R. Kennedy, Migdat Hodzic
doaj   +1 more source

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