scholarly journals Modeling the Hydro-Mechanical Coupling Behavior of Unsaturated Geotechnical Materials Based on Non-Equilibrium Thermodynamic Theory

2020 ◽  
Vol 10 (16) ◽  
pp. 5668
Author(s):  
Guangchang Yang ◽  
Yang Liu ◽  
Peipei Chen
Keyword(s):  
Yield Criterion ◽  
Constitutive Relations ◽  
Thermodynamic Theory ◽  
Granular Temperature ◽  
Equilibrium Thermodynamic ◽  
Energy Functions ◽  
Mechanical Coupling ◽  
Coupling Behavior ◽  
The Relationship ◽  
Non Equilibrium

A new hydro-mechanical model for unsaturated geotechnical materials based on the non-equilibrium thermodynamic theory is presented in this paper. Common concepts, such as yield criterion and flow rules, are not involved in the constitutive relationships, and are replaced with the thermodynamic concepts of granular temperature, granular entropy, migration coefficients, and energy functions. The dissipation system and the migration coefficient relationships are theoretically determined, and the constitutive relations of non-elastic deformation and granular temperature are obtained by dissipation relations and thermodynamic identity. Thus, the relationship between dissipation mechanism and macro mechanical behavior can be established by migration coefficients and energy functions. The model can reflect the complex hydro-mechanical coupling behavior of unsaturated geotechnical materials subjected to various mechanical paths. The validity of the model is verified by comparing the modeling results with experimental data, and reasonable agreement is achieved.

scholarly journals Non-Equilibrium Thermodynamic Theory of 4-Component Lead-Free Solder

2009 ◽  
Vol 50 (2) ◽  
pp. 236-244
Author(s):  
Kenichiro Suetsugu ◽  
Atsushi Yamaguchi ◽  
Kazumi Matsushige ◽  
Toshihisa Horiuchi
Keyword(s):  
Thermodynamic Theory ◽  
Lead Free ◽  
Lead Free Solder ◽  
Equilibrium Thermodynamic ◽  
Free Solder ◽  
Non Equilibrium

Hydrolysis-induced large swelling of polyacrylamide hydrogels

Soft Matter ◽  
2020 ◽  
Vol 16 (24) ◽  
pp. 5740-5749
Author(s):  
Yu Zhou ◽  
Lihua Jin
Keyword(s):  
Thermodynamic Theory ◽  
Equilibrium Thermodynamic ◽  
Polyacrylamide Hydrogels ◽  
Non Equilibrium

A non-equilibrium thermodynamic theory is developed to predict hydrolysis-induced large swelling of polyacrylamide hydrogels.

Non-equilibrium Thermodynamic Theory of Ferroelectric Phase Transitions

2015 ◽  
Vol 481 (1) ◽  
pp. 166-188 ◽  
Author(s):  
Shu-Tao Ai ◽  
Hui-Ping Bo ◽  
Shao-Yin Zhang ◽  
Yuan-Zhen Cai
Keyword(s):  
Phase Transitions ◽  
Ferroelectric Phase ◽  
Thermodynamic Theory ◽  
Equilibrium Thermodynamic ◽  
Ferroelectric Phase Transitions ◽  
Non Equilibrium

scholarly journals A New Model for Thermodynamic Characterization of Hemoglobin

Fluids ◽  
2019 ◽  
Vol 4 (3) ◽  
pp. 135 ◽  
Author(s):  
Francesco Farsaci ◽  
Ester Tellone ◽  
Antonio Galtieri ◽  
Silvana Ficarra
Keyword(s):  
Dielectric Constant ◽  
Thermodynamic Theory ◽  
Point Of View ◽  
Internal Variables ◽  
Polarization Current ◽  
Equilibrium Thermodynamic ◽  
Physical Point ◽  
Hemoglobin C ◽  
Non Equilibrium

In this paper, we formulate a thermodynamic model of hemoglobin that describes, by a physical point of view, phenomena favoring the binding of oxygen to the protein. Our study is based on theoretical methods extrapolated by experimental data. After some remarks on the non-equilibrium thermodynamic theory with internal variables, some thermodynamic functions are determined by the value of the complex dielectric constant. In previous papers, we determined the explicit expression of a dielectric constant as a function of a complex dielectric modulus and frequency. The knowledge of these functions allows a new characterization of the material and leads to the study of new phenomena that has yet to be studied. In detail, we introduce the concept of “hemoglobe”, a model that considers the hemoglobin molecule as a plane capacitor, the dielectric of which is almost entirely constituted by the quaternary structure of the protein. This model is suggested by considering a phenomenological coefficient of the non-equilibrium thermodynamic theory related to the displacement polarization current. The comparison of the capacity determined by the mean of this coefficient, and determined by geometrical considerations, gives similar results; although more thermodynamic information is derived by the capacity determined considering the aforementioned coefficient. This was applied to the normal human hemoglobin, homozygous sickle hemoglobin, and sickle cell hemoglobin C disease. Moreover, the energy of the capacitor of the three hemoglobin was determined. Through the identification of displacement currents, the introduction of this model presents new perspectives and helps to explain hemoglobin functionality through a physical point of view.

Thermodynamic and Kinetic Calculation of Non-Equilibrium Microstructure Design of TRIP Steel

2014 ◽  
Vol 783-786 ◽  
pp. 766-770
Author(s):  
Yan Lin He ◽  
Na Qiong Zhu ◽  
Wei Sen Zheng ◽  
Xiao Gang Lu ◽  
Lin Li
Keyword(s):  
Trip Steel ◽  
Equilibrium Phase ◽  
Microstructure Design ◽  
Kinetic Calculation ◽  
Software Comparison ◽  
Thermo Calc Software ◽  
Curve Determination ◽  
Equilibrium Microstructure ◽  
The Relationship ◽  
Non Equilibrium

The non-equilibrium microstructure of Fe-C-Mn-Si TRIP steel is designed bythermodynamic and kinetic calculation. The upper limit of bainitic transformation temperature iscalculated and compared to that characterized by CCT curve determination. s M temperature isdetermined based on thermodynamics of martensitic transformation and sublattice model. Thecalculation is conducted via TQ6-patch in Thermo-Calc software. Comparison between thecalculations and experiments reveals the relationship between non-equilibrium phase compositionand heat treatment parameters which can be utilized to achieve the elaborate design of alloy and heattreatment for super TRIP steel.

Non-equilibrium thermodynamic analysis of adsorption carbon capture: Contributors, mechanisms and verification of entropy generation

Energy ◽  
2020 ◽  
Vol 208 ◽  
pp. 118348
Author(s):  
Zhihao Guo ◽  
Shuai Deng ◽  
Yu Zhu ◽  
Li Zhao ◽  
Xiangzhou Yuan ◽  
...  
Keyword(s):  
Thermodynamic Analysis ◽  
Entropy Generation ◽  
Carbon Capture ◽  
Equilibrium Thermodynamic ◽  
Non Equilibrium
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