Results 101 to 110 of about 81,604 (318)
Micro‐injection laser‐assisted bioprinting enables ultrafast and precise patterning of small endothelial cell spheroids by injecting a highly concentrated single‐cell suspension into GelMA/ColMA hydrogels. In co‐culture with fibroblasts, controlled pre‐vasculogenic network formation is obtained at microscale resolution.
Charles Handschin +9 more
wiley +1 more source
Gear mesh stiffness is the foundation of the study on gear dynamics.Taking the spur gear as research object,the finite element model of the spur gear with root crack is established,and the accurate calculation method of gear mesh stiffness is proposed ...
唐进元 +3 more
doaj
Calculation and Analysis of Modified Gear Time-varying Meshing Stiffness based on Matlab
Considering the real involute and transition curve equation of gears,an accurate model of gears is conducted. The deformation of modified gear is deduced and calculated by Weber energy method. The mapping relationships of load angle βj,pressure angle αk,rotation angle tan αk and coordinate XMj of load point are deduced.
Dongjiang Cao, Peng Shang, Yang Zhao
openaire +1 more source
Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu +6 more
wiley +1 more source
In order to study the influence of the random perturbation of time-varying mesh stiffness on the dynamics of the helical gearing system, based on Newton's law, a stochastic dynamics model of a six-degree-of-freedom helical gear system is established and ...
Yiyi Tou +4 more
doaj
Structural sensitivity analysis: Methods, applications, and needs [PDF]
Some innovative techniques applicable to sensitivity analysis of discretized structural systems are reviewed. These techniques include a finite-difference step-size selection algorithm, a method for derivatives of iterative solutions, a Green's function ...
Adelman, H. M. +3 more
core +1 more source
Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley +1 more source
Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song +6 more
wiley +1 more source
Wave propagation in a stratified fluid / porous medium is studied here using analytical and numerical methods. The semi-analytical method is based on an exact stiffness matrix method coupled with a matrix conditioning procedure, preventing the occurrence
Chiavassa, Guillaume +3 more
core +3 more sources
Modelling of time-varying meshing stiffness under tooth wear condition for nonlinear dynamics in compound planetary gear set [PDF]
Chao Yang, Haibo Zhang
openalex +1 more source

