Results 131 to 140 of about 26,650 (306)

Solid‐State Nanopore Characterization of Dendrimer‐Peptide Conjugates Across Defined Peptide Loadings

Advanced Materials Interfaces, EarlyView.
Solid‐state nanopores are used to interrogate dendrimer‐peptide conjugates with systematically varied peptide loading. Single‐particle ionic current signatures reveal how ligand density modulates deformability, transport pathways, and electromechanical coupling during translocation.
Chaoming Gu, Jin Woong Lee, Kamruzzaman Joty, Marisela Leon, Santosh Khatri, Janeesha Manawasinghe, Seungpyo Hong, Min Jun Kim   +7 more
wiley   +1 more source

Modeling Multibody Frictional Contact Problem in a CANDU Fuel Rod

, 2015
A three-dimensional multibody frictional contact problem in a CANDU nuclear fuel rod is studied in this thesis. To account for the effect of friction on fuel rod deformations, a computational model is developed based on an existing model. For the contact
Fan, Tieshu
core  

On the Friction and Wear Mechanisms of Electrified Steel Contacts in CO2: Unveiling the Role of Carbon‐Rich Tribofilms Under Dry Sliding Conditions

Advanced Materials Interfaces, EarlyView.
This study investigates friction and wear of AISI 52100 steel under dry sliding in CO2, air, and N2 atmospheres, with and without contact electrification. CO2 forms a stable carbon‐rich tribofilm that reduces friction by ∼30% and wear by ∼85%. High‐resolution TEM, EELS, and molecular dynamics reveal pressure‐dependent lubrication mechanisms, showing ...
Julio A. Cao‐Romero‐Gallegos, Seungjoo Lee, Cagatay Yelkarasi, Leonardo I. Farfan‐Cabrera, Ryuichi Okamoto, Hitoshi Washizu, Ali Erdemir   +6 more
wiley   +1 more source

Dynamic frictional contact for elastic viscoplastic material

Electronic Journal of Differential Equations, 2007
Using a general theory for evolution inclusions, existence and uniqueness theorems are obtained for weak solutions to a frictional dynamic contact problem for elastic visco-plastic material.
Kenneth L. Kuttler
doaj  

A multiscale large time increment/FAS algorithm with time-space model reduction for frictional contact problems: A MULTISCALE LATIN/FAS ALGORITHM FOR FRICTIONAL CONTACT PROBLEMS

, 2013
A multiscale strategy using model reduction for frictional contact computation is presented. This new approach aims to improve computation time of finite element simulations involving frictional contact between linear and elastic bodies. This strategy is
Gravouil, A., Gravouil, Anthony, Rochette, M., M. Rochette, A. Giacoma, A. Gravouil, Dureisseix, David, Dureisseix, D., Giacoma, A., D. Dureisseix, Rochette, Michel, Giacoma, Anthony   +11 more
core   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source

Review of modeling tool‒rock frictional contact with a blunt PDC cutter

Journal of Intelligent Construction
The mechanisms of tool‒rock frictional contact are reviewed, with a focus on recent advances in numerical modeling. An idealized problem is defined for tool‒rock frictional contact with a rigid blunt tool sliding on the surface of a half-space.
Yaneng Zhou, George Z. Voyiadjis
doaj   +1 more source

The role of frictional contact of constituent blocks on the stability of masonry domes. [PDF]

Proc Math Phys Eng Sci, 2018
Beatini V, Royer-Carfagni G, Tasora A.
europepmc   +1 more source

3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics

Advanced Materials Technologies, EarlyView.
A 3D‐printable porous dopamine‐polyurethane acrylate elastomer results in conductive, stretchable, and compressible structures that can be metallized in situ through catechol‐mediated silver reduction. The resulting material function as both compliant soft robot with a and strain sensors without complex assemblies, enabling fully 3D‐printed soft ...
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi   +3 more
wiley   +1 more source

A Surface-to-Surface Finite Element Algorithm for Large Deformation Frictional Contact in febio. [PDF]

J Biomech Eng, 2018
Zimmerman BK, Ateshian GA.
europepmc   +1 more source