Results 111 to 120 of about 2,129,467 (285)

Automated analysis of soft hydrogel microindentation: Impact of various indentation parameters on the measurement of Young's modulus.

open access: yesPLoS ONE, 2019
Measurements of Young's moduli are mostly evaluated using strong assumptions, such as sample homogeneity and isotropy. At the same time, descriptions of measurement parameters often lack detailed specifications.
Steven Huth   +2 more
doaj   +1 more source

Effect of temperature and strain rate on indentation size effect at shallow indentation depths

open access: yesMaterials & Design
This study investigates the indentation size effect in a bcc silicon iron single-crystal tested at different temperatures and strain rates. The classical Nix-Gao model based on strain gradient plasticity and geometrically necessary dislocations starts to deviate from experimental data at small depths due to dislocation interactions not accounted for ...
Petr Haušild   +3 more
openaire   +2 more sources

Sliding indentation enhances collagen content and depth-dependent matrix distribution in tissue-engineered cartilage constructs

open access: yes, 2013
Background: Current tissue-engineered cartilage constructs contain insufficient amounts of collagen, whose function is to resist tension. We postulate that dynamic tension is necessary to stimulate collagen formation.
Ito, K.   +2 more
core   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

open access: yesAdvanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen   +5 more
wiley   +1 more source

High temperature indentation of WC/Co hardmetals

open access: yes, 2013
WC/Co is the material of choice for most high wear applications such as hot forming operations, drilling, cutting, machining and wire drawing due to its superior wear properties.
Zunega, Jonee Christine
core   +1 more source

Scaling relationships in indentation of power-law creep solids using self-similar indenters

open access: yes, 2001
We use dimensional analysis to derive scaling relationships for self-similar indenters indenting solids that exhibit power-law creep. We identify the parameter that represents the indentation strain rate.
Cheng, YT (reprint author), GM Corp, Ctr Res & Dev, Mat & Proc Lab, Warren, MI 48090 USA.   +1 more
core   +1 more source

Deciphering Anti‐Cancer Drug Efficacy Through Nanomechanical Vibrations in Living Gastric Cancer Organoids

open access: yesAdvanced Science, EarlyView.
This study developed an efficacy assessment platform that integrates patient‐derived gastric cancer organoids, atomic force microscopy (AFM)‐based nanomechanical vibration detection, deep learning analysis, and organoid mechanical modeling. It detects picomolar drug effects within 0.1 s signal, achieves 97% classification accuracy, and offers non ...
Ting Zhang   +10 more
wiley   +1 more source

Screening of EPDM cure states using depth-sensing indentation

open access: yes, 2007
The applicability of depth-sensing indentation as a characterization tool for high throughput experimentation (HTE) in the field of rubber curing was investigated. Depth-sensing indentation is a suitable candidate for HTE as small amts.
Schubert, U.S.   +2 more
core   +1 more source

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

open access: yesAdvanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang   +5 more
wiley   +1 more source

Determination of Young's modulus from depth sensing Vickers Indentation tests

open access: yes, 1997
A new semiempirical formula is proposed for the determination of Young's modulus of material from Depth Sensing Vickers Indentation tests. The parameters used in this equation can be determined from the indentation curves with high accuracy. This formula
Gubicza, Jenő
core   +1 more source

Home - About - Disclaimer - Privacy