Results 41 to 50 of about 34,568 (304)

Comparative evaluation of an automated preloaded delivery system with a non-preloaded system

open access: yesIndian Journal of Ophthalmology, 2022
Purpose: To evaluate a single surgeon’s experience with an automated preloaded intraocular lens (IOL) delivery system and a nonpreloaded system. Methods: This was a prospective, observational case series.
openaire   +3 more sources

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Prediction of Friction Torque in Paired Tapered Roller Bearings of Disc Cutter Under Tri-Axial Rock-Breaking Loads and Preload

open access: yesLubricants
The disc cutter is a key rock-breaking component of tunnel boring machines, and during operation, improper assembly preload often leads to uneven wear of the cutter.
Gang Hu   +4 more
doaj   +1 more source

A Platform for Assessing Cellular Contractile Function Based on Magnetic Manipulation of Magnetoresponsive Hydrogel Films

open access: yesAdvanced Science, 2023
Despite significant advancements in in vitro cardiac modeling approaches, researchers still lack the capacity to obtain in vitro measurements of a key indicator of cardiac function: contractility, or stroke volume under specific loading conditions ...
Moran Yadid   +13 more
doaj   +1 more source

A bolt preload monitoring method based on the refocusing capability of virtual time reversal

open access: yesStructural Control & Health Monitoring, 2019
Bolted joints are widely used in aerospace and civil structures. Nevertheless, bolts may easily lose preload because of inappropriate initial preloads or time‐varying servicing loads.
Fei Du, Chao Xu, Jie Zhang
semanticscholar   +1 more source

Texoskeletons: Developing the Fundamental Technologies for Creating Intelligent Soft Robotic Clothing With Integrated 1D Sensors and Actuators

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Traditional wearable exoskeletons rely on rigid structures, which limit comfort, flexibility, and everyday usability. This work introduces the fundamental technologies to create the first soft, lightweight, intelligent textile‐based exoskeletons (Texoskeletons) built using 1D sensors and actuators.
Amy Lukomiak   +19 more
wiley   +1 more source

Dynamic signal analysis based monitoring for ball screws preload deterioration

open access: yesMeasurement: Sensors
The ball screw feed system has been an important part of precision machinery and machine tools. Its preload degradation affects machining accuracy and the issue should be first coped with per manufacturers’ suggestion.
Cheng-Liang Tsai, Min-Chun Pan
doaj   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Myocardial Energy Response to Glyceryl Trinitrate: Physiology Revisited

open access: yesFrontiers in Physiology, 2021
Objective: Although intravenous nitrates are commonly used in clinical medicine, they have been shown to increase myocardial oxygen consumption and inhibit complex IV of the electron transport chain.
William D. Watson   +7 more
doaj   +1 more source

Backanalysis of preloading

open access: yes, 2017
The paper presents the application of a backanalysis methodology to the inverse analysis of preloading soft clays. The methodology is based on an appropriate selection of the objective function and it uses a novel adaptive genetic algorithm approach to solve the resulting optimization problem.
Santos Rodríguez, Cristian de   +2 more
openaire   +2 more sources

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