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Rainer Feistel and Olaf Hellmuth
Under typical marine conditions of about 80% relative humidity, evaporation of water from the ocean is an irreversible process accompanied by entropy production. In this article, equations are derived for the latent heat of irreversible evaporation and t...
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Conor N. Murphy, Luísa Toledo Tude and Paul R. Eastham
Solids can be cooled by driving impurity ions with lasers, allowing them to transfer heat from the lattice phonons to the electromagnetic surroundings. This exemplifies a quantum thermal machine, which uses a quantum system as a working medium to transfe...
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Per Söderlind, Aurélien Perron, Emily E. Moore, Alexander Landa and Tae Wook Heo
Density-functional theory (DFT) is employed to investigate the thermodynamic and ground-state properties of bulk uranium tri-iodide, UI3. The theory is fully relativistic and electron correlations, beyond the DFT and generalized gradient approximation, a...
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Alexander Landa, Per Söderlind, Emily E. Moore and Aurelien Perron
YCo5 permanent magnet exhibits high uniaxial magnetocrystalline anisotropy energy and has a high Curie temperature. These are good properties for a permanent magnet, but YCo5 has a low energy product, which is notably insufficient for a permanent magnet....
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Per Söderlind, Alexander Landa, Aurélien Perron, Emily E. Moore and Christine Wu
Thermodynamics of plutonium monocarbide is studied from first-principles theory that includes relativistic electronic structure and anharmonic lattice vibrations. Density-functional theory (DFT) is expanded to include orbital-orbital coupling in addition...
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Lucia Tagami, Onelia Aparecida Andreo dos Santos, Eduardo Falabella Sousa-Aguiar, Pedro Augusto Arroyo, Maria Angélica Simões Dornellas de Barros (Author)
Pág. 1351 - 1357
Isotherm ion exchange of Y zeolite has been studied at different temperatures. The direct exchanges of chromium in NaY show a very high selectivity to the in-going Cr3+ ion. It was also shown that exchange increases with increasing temperature. On the ot...
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Lucio Cardoso Filho, Fred Wolff (Author)
Pág. 1359 - 1362
Legendre transforms and their applications in thermodynamics are revisited by the use of Jacobian representation in order to express second order partial derivatives of a Legendre transform in terms of another Legendre transform. Some examples are shown ...
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Matilde Vicentini (Author)
Pág. 795 - 803
This paper presents a proposal for the teaching of Thermodynamics which takes as a starting point the intuitive ideas of students. The presentation of the results of inquiries about the understanding and misunderstandings of students leads us to the sugg...
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Yuan Wei, Renliang Chen, Ye Yuan and Luofeng Wang
This study assesses the influence of engine dynamic characteristics on helicopter handling quality during hover and low-speed forward flight. First, we construct the helicopter?engine coupling model (HECM) based on the power-matching relationship between...
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Reynaldo J. Silva-Paz, Dante K. Mateo-Mendoza and Amparo Eccoña-Sota
In Peru, there are more than four thousand plants with medicinal properties, including muña, which helps digestion and improves health. The way to preserve these plants is drying up. The objective of this research was to investigate the coefficient of di...
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Patricio Venegas-Aravena and Enrique G. Cordaro
Field measurements in subduction regions have revealed the presence of non-seismic pre-earthquake signals such as electromagnetic or acoustic emission, gas liberation, changes in Earth?s surface temperature, changes at the ionospheric level, or fluid mig...
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Patricio Venegas-Aravena and Enrique G. Cordaro
Understanding the process of earthquake preparation is of utmost importance in mitigating the potential damage caused by seismic events. That is why the study of seismic precursors is fundamental. However, the community studying non-seismic precursors re...
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Zhifeng Wan, Junsheng Luo, Xiaolu Yang, Wei Zhang, Jinqiang Liang, Lihua Zuo and Yuefeng Sun
Mud volcanoes and other fluid seepage pathways usually transport sufficient gas for the formation of gas reservoirs and are beneficial to the accumulation of gas hydrate. On the other hand, the fluid thermal effects of mud volcanoes can constrain the occ...
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Salman Lari, Sang Wook Han, Jong Uk Kim and Hyock Ju Kwon
High-intensity focused ultrasound (HIFU) is a non-invasive medical procedure, which is mainly used to ablate tumors externally by focusing on them with high-frequency ultrasound. Because a single ablation can process only a small volume of tissue, a succ...
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Niall Holmes, Mark Russell, Geoff Davis and Mark Tyrer
In hydrating Portland cements, more than one of the AFm family of calcium aluminates may exist. Depending on the amount of carbonate and sulfate present in the cement, the most common phase to precipitate is monosulfate, monocarbonate and/or hemicarbonat...
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Niall Holmes, Mark Tyrer and Denis Kelliher
This paper presents a prediction of chemical shrinkage volume created during the hydration of two cements over time using a thermodynamic model. Chemical shrinkage in hydrating cements is a result of internal volume change over time within sealed conditi...
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Bartolomeus Häussling Löwgren, Julius Bergmann and Odilio Alves-Filho
Drying of porous media is strictly governed by heat and mass transfer. However, contrary to the definition that drying is simultaneous transport mechanisms of heat and mass, most past and current models either account for temperature or concentration gra...
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Javier García-Germán
Pág. 6 - 15
A lo largo de las últimas dos décadas, y ante la creciente preocupación por el medio ambiente y el cambio climático, la arquitectura ha explorado las oportunidades abiertas por los campos de la termodinámica y la ecología. Centrándose en un enfoque cuant...
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