Results 171 to 180 of about 841,523 (313)

Research on Composite Continuously Variable Transmission of Double Variable Diameter Pulley and Planetary Transmission

In order to obtain different working speeds under different conditions, the required output speed can change evenly within a certain range, so that the speed and power output can reach a better balance point, so as to reduce energy consumption.
Yan Chuang, Huang Jiaming, Song Aiping, Pan Jianzhou   +3 more
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Research on Energy Transmission Characteristics of Mechanical Vibrations in Steel Fiber-Reinforced Concrete. [PDF]

Materials (Basel)
Zhang F, Wang C, Xu B, Zhang L.
europepmc   +1 more source

Transmission characteristics, replication patterns and clinical manifestations of human monkeypox virus-an in-depth analysis of four cases from Germany. [PDF]

Clin Microbiol Infect, 2023
Hornuss D, Daehne T, Goetz V, Mueller M, Usadel S, Lorz A, Mockenhaupt M, Huzly D, Bierbaum S, Fuchs J, Jaki L, Falcone V, Kochs G, Panning M, Rieg S.   +14 more
europepmc   +1 more source

Sound transmission through panels and shells filled with porous material in the presence of external flow

, 2014
With increasingly tighter regulations on noise exposure during flight, aircraft designers have been compelled to innovate structures that minimise noise transmission into the cabin space.
Zhou, Jie
core  

Influence of System Parameters on Nonlinear Dynamic Characteristics of the Herringbone Gear Transmission Under Different Coincidence Degrees

The coincidence degree is an important parameter to reflect the number of meshing teeth of gear pairs at the same time. The appropriate coincidence degree of reasonable selection can improve transmission bearing capacity and ensure transmission stability,
Wang Chunling, Wang Ji, Li Zhibin, Wang Sanmin   +3 more
core   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

A multifunctional bi-anisotropic metasurface with reflection-transmission polarization conversion and narrow bandpass transmission characteristics. [PDF]

Sci Rep
Nasir M, Koziel S, Pietrenko-Dabrowska A.   +2 more
europepmc   +1 more source

Transmission Characteristics and Predictive Model for Recent Epidemic Waves of COVID-19 Associated With OMICRON Variant in Major Cities in China. [PDF]

Int J Public Health, 2022
Zheng Y, Wang Y.
europepmc   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source