Results 21 to 30 of about 4,402 (241)

Thermodynamic Model of Aerodynamic Sound Hardening Method

open access: yesМеханика машин, механизмов и материалов, 2020
As a result of scientific research, a method of aerodynamic sound hardening (ADH) has been developed and patented, which makes it possible to achieve improved properties of hard alloys by reducing their defectiveness, improving the homogeneity of the ...
Anatoliy N. Jigalov   +2 more
doaj   +1 more source

Thermal Performances Prediction Analysis of High Speed Feed Shaft Bearings Under Actual Working Condition

open access: yesIEEE Access, 2019
High-speed machining is a key technology for greatly improving productivity and reducing production costs. Angular contact ball bearing is the key component of ball screw feed system.
Zhenjun Li   +3 more
doaj   +1 more source

Molecular/cluster statistical thermodynamics methods to simulate quasi-static deformations at finite temperature

open access: yesInternational Journal of Solids and Structures, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Haiying   +4 more
openaire   +2 more sources

Influence of reaction equilibrium on thermodynamic model calculations of quasi-static pressure for confined TNT explosions

open access: yesBaozha yu Chongji
The quasi-static pressure thermodynamic model for confined explosions provides an effective characterization of pressure evolution with mass-to-volume ratio m/V, and derivation of physical quantities such as gas adiabatic index from products and ...
Yang HUANG, Suwen CHEN, Jian ZHOU
doaj   +1 more source

Hexagonal diamond formation mechanism: A review [PDF]

open access: yesMatter and Radiation at Extremes
As a metastable carbon allotrope, hexagonal diamond (HD) exhibits potentially superior mechanical properties to cubic diamond (CD). However, its synthesis faces significant thermodynamic and kinetic challenges. This review summarizes the critical role of
Tao Yu, Shengcai Zhu
doaj   +1 more source

Exploration of continuous rheological model for rock under uniaxial compression based on phenomenological damage theory

open access: yesAIP Advances, 2020
The analysis of rock damage under the thermodynamic framework is a research method in continuum damage mechanics. In this method, the coupling relationship between energy and damage is proposed to establish the damage constitutive model of rock from the ...
Tianbai Zhou, Yueping Qin, Qiufeng Ma
doaj   +1 more source

Cluster Statistical Thermodynamics (CST) — To Efficiently Calculate Quasi-Static Deformation at Finite Temperature Based on Molecular Potential [PDF]

open access: yes, 2007
For quasi-static deformations in engineering practice, molecular dynamics (MD) simulation requires computation resources that are not affordable even with ever-increasing computing power. In order to overcome this weakness, we developed a new method called cluster statistical thermodynamics (CST).
Ming Hu   +4 more
openaire   +1 more source

Application of Extremes in Internal Energy and Entropy for Defining Loss of Working Capacity

open access: yesPhyschem
In physical chemistry textbooks, it is explained that thermodynamic processes in isolated systems (with constant internal energy) evolve until the total entropy reaches a maximum value; irreversible processes, or those in closed systems (at a constant ...
Mihalj Poša
doaj   +1 more source

Effective action and thermodynamics of radiating shells in general relativity

open access: yes, 1999
An effective action is obtained for the area and mass aspect of a thin shell of radiating self-gravitating matter. On following a mini-superspace approach, the geometry of the embedding space-time is not dynamical but fixed to be either Minkowski or ...
Casadio R., Venturi G., Alberghi G. L.
core   +1 more source

Adsorption Characteristics of Rosin-based Macroporous Adsorption Resin for Panax notoginseng Saponin

open access: yesShipin gongye ke-ji, 2022
In this paper, three kinds of rosin-based macroporous adsorption resins with carboxyl group (-COOH), ester group (-OR) and hydroxyl group (-OH) were synthesized.
Yingli HU   +5 more
doaj   +1 more source

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