Results 31 to 40 of about 570,196 (180)
Study on the Microstructure and Wear Resistance of Flame Sprayed High Entropy Alloy Reinforced Copper - Based Composite Coatings [PDF]
Cailiao Baohu, 2021 In order to study the effect of AlCoCrFeNi high entropy alloy (HEA) on the morphology, microhardness and wear resistance of copper - based composite coatings, the AlCoCrFeNi / Cu composite coatings were prepared on the surface of 40Cr steel by flame ...
HAN Yu - jun, ZHOU Xiao - ping
doaj +1 more source
Deterministic Prediction of the Entropy Increase in a Sudden Expansion
Entropy, 2011 This paper presents the results of a study of the prediction of the entropy growth within an internal free shear layer of an ideal gas flow downstream of a sudden expansion of the flow area. The objective of the study is exploratory in nature by invoking
LaVar King Isaacson
doaj +1 more source
Holographic entropy increases in quadratic curvature gravity
Physical Review D, 2015 Standard methods for calculating the black hole entropy beyond general relativity are ambiguous when the horizon is non stationary. We fix these ambiguities in all quadratic curvature gravity theories, by demanding that the entropy be increasing at every time, for linear perturbations to a stationary black hole.
Bhattacharjee, Srijit +2 more
openaire +3 more sources
On the entropy variation in the scenario of entropic gravity
Physics Letters B, 2018 In the scenario of entropic gravity, entropy varies as a function of the location of the matter, while the tendency to increase entropy appears as gravity.
Yong Xiao, Shi-Yang Bai
doaj +1 more source
ADHD Symptoms Increase Perception of Classroom Entropy and Impact Teacher Stress Levels
Children, 2023 Attention deficit hyperactivity disorder (ADHD) is a common neuropsychiatric disorder among school-age children, characterized by persistent behavioral patterns of inattention and/or hyperactivity/impulsivity.
Rosa Angela Fabio +3 more
doaj +1 more source
An Entropy-Based Failure Prediction Model for the Creep and Fatigue of Metallic Materials
Entropy, 2019 It is well accepted that the second law of thermodynamics describes an irreversible process, which can be reflected by the entropy increase. Irreversible creep and fatigue damage can also be represented by a gradually increasing damage parameter.
Jundong Wang, Yao Yao
doaj +1 more source
Two Types of Temporal Symmetry in the Laws of Nature
EntropyThis work explores the implications of assuming time symmetry and applying bridge-type, time-symmetric temporal boundary conditions to deterministic laws of nature with random components.
A. Y. Klimenko
doaj +1 more source
Entropy, 2018 Entropy generation in thermal convection with differentially discrete heat boundary conditions at various Rayleigh numbers (Ra) are numerically investigated using the lattice Boltzmann method.
Zhengdao Wang, Yikun Wei, Yuehong Qian
doaj +1 more source
Journal of Advanced Ceramics, 2023 High-entropy effect is a novel design strategy to optimize properties and explore novel materials. In this work, (La1/5Nd1/5Sm1/5Ho1/5Y1/5)NbO4 (5RNO) high-entropy microwave dielectric ceramics were successfully prepared in the sintering temperature (S.T.
Deqin Chen +7 more
doaj +1 more source
Public nuisance and entropy increase
Ecotoxicology and Environmental Safety, 1977 Public nuisance if the inevitable physical conclusion of the second law of thermodynamics, the increase of entropy, under which humans make efforts to build up order, that is, to make states of lower entropy, scattering much entropy into the environment. In other words, humans live on negentropy, negative entropy.
openaire +2 more sources