Results 31 to 40 of about 388,551 (295)
Design of interdigitated transducers for acoustofluidic applications
Nanotechnology and Precision Engineering, 2022 Interdigitated transducers (IDTs) were originally designed as delay lines for radars. Half a century later, they have found new life as actuators for microfluidic systems.
Shuren Song +3 more
doaj +1 more source
Relationships between initial unloading slope, contact depth, and mechanical properties for spherical indentation in linear viscoelastic solids [PDF]
Materials Science and Engineering: A, 2005 Using analytical and finite element modeling, we studied conical indentation in linear viscoelastic solids with either displacement or load as the independent variable. We examine the relationships between initial unloading slope, contact depth, and viscoelastic properties for various loading conditions such as constant displacement rate, constant ...
Yang-Tse Cheng, Che-Min Cheng
openaire +2 more sources
, 2018 Longitudinal contact-based vibrations of colloidal crystals with a controlled layer thickness are studied. These crystals consist of 390 nm diameter polystyrene spheres arranged into close packed, ordered lattices with a thickness of one to twelve layers.
Boechler, Nicholas +7 more
core +1 more source
Jixie qiangdu, 2022 By combining the thermal elastohydrodynamic lubrication theory, thermoelastic mechanics theory and principle of heat-pressure conversion, a method was presented to solve the material thermal expansion coefficient of solid surface in the thermal ...
LU ZunYou
doaj
Liquefaction of crushable granular media: A multiscale numerical analysis [PDF]
EPJ Web of ConferencesUnderstanding liquefaction—the loss of shear resistance in granular materials under constantvolume shearing—is crucial for preventing landslides and geotechnical failures.
Cárdenas-Barrantes Manuel +1 more
doaj +1 more source
Materials Research, 2022 Wetting of metal droplet on the solid substrate is a fundamental phenomenon which is applicable to the surface chemistry. When an oscillation field is included in the wetting condition, the wetting process shows significant advancing and receding ...
Wendi Li +4 more
doaj +1 more source
Nature CommunicationsSolid-state Li-ion batteries, based on Ni-rich oxide cathodes and Li-metal anodes, can theoretically reach a high specific energy of 393 Wh kg−1 and hold promise for electrochemical storage.
Chuanlai Liu, Franz Roters, Dierk Raabe
doaj +1 more source
A study of normal dynamic parameter models of joint interfaces based on fractal theory
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015 The dynamic behaviors of the joint interfaces make a great difference in machine tools, especially in high-end numerical control machines. To provide an assessment of the normal dynamic parameters in contact deformation of elastoplastic solid joint ...
Wenwei LIU +4 more
doaj +1 more source
On the Mechanism of Cavitation Damage by Nonhemispherical Cavities Collapsing in Contact With a Solid Boundary [PDF]
Journal of Basic Engineering, 1961 A perfect fluid theory, which neglects the effect of gravity, and which assumes that the pressure inside a cavitation bubble remains constant during the collapse process, is given for the case of a nonhemispherical, but axially symmetric cavity which collapses in contact with a solid boundary.
Naudé, Charl F., Ellis, Albert T.
openaire +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source