Results 41 to 50 of about 756,221 (235)

Development of wireless tension sensor of round link chain of scraper conveyor

open access: yesGong-kuang zidonghua, 2018
In view of problem that existing tension measuring methods of round link chain of scraper conveyor could not detect tension of round link chain in real time by using wired method, a wireless tension sensor of round link chain of scraper conveyor based on
LUO Tiena
doaj   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

open access: yesAdvanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ   +19 more
wiley   +1 more source

Low voltage low power current conveyor CCII

open access: yes, 2010
This paper is focused on comparing CCIIs by their construction principle. It researchs differences between gate-driven and bulk-driven approach, and between design based on current mirrors or operational amplifier. Designed current conveyor functionality
Kadaňka, Petr
core   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

VM and CM Universal Filters Based on Single DVCCTA

open access: yesActive and Passive Electronic Components, 2011
A universal voltage-mode filter (VM) and a current-mode filter (CM) based on recently proposed active building block, namely, differential voltage current conveyor transconductance amplifier (DVCCTA) are proposed.
Neeta Pandey, Sajal K. Paul
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

open access: yesAdvanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner   +14 more
wiley   +1 more source

Assessing the efficiency of measures to enhance electric power quality in variable-frequency drive for scraper conveyors

open access: yesГорные науки и технологии
The intensive implementation of variable-frequency drive machines and installations in underground mining processes necessitates addressing several issues, with a primary focus on ensuring the quality of electric power.
V. L. Petrov, A. V. Pichuev
doaj   +1 more source

Schmitt Trigger with Controllable Hysteresis Using Current Conveyors

open access: yesInternational Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems, 2012
Active elements working in the current or mixed mode are still attractive for the design of analog functional blocks. The current conveyor (CC) was defined already in 1968.
Jiri Misurec, Jaroslav Koton
doaj   +1 more source

Energy efficiency of belt conveyor at constant speed operation [PDF]

open access: yesMining and Metallurgy Engineering Bor, 2015
Belt conveyor drives at the open pit mines consist of motors with large installed power. Each analysis of their energy efficiency presents an important factor for proper control to achieve better financial effects.
Štatkić Saša   +3 more
doaj   +1 more source

Multistage, Self‐Sensing Artificial Muscles With Coordination From Liquid Crystal Elastomer‐Graphene Composite Fibers

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang   +9 more
wiley   +1 more source

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