Results 31 to 40 of about 3,191,259 (277)

Experimental study of two-way hydraulic percussion device operation in vibro-impact drilling in rocks

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The authors describe the physical model of a hydraulic percussion device with frequency adjustment using standard flow rate controller and impact energy adjustment using an original throttle control of flow distribution, which allows dragging the hammering piston before its back run.
openaire   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

A Hydraulic Device [PDF]

open access: yes, 2023
The present invention relates inter alia to a hydraulic device which may be used as a hydraulic transformer. The hydraulic device comprising a housing, a first tubular cavity and a second tubular cavity both being provided within the housing.
Johansen, Per; id_orcid   +1 more
core  

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Construction of a Bearing Testing Apparatus to Assess Lifetime of Large-Scale Bearings

open access: yesCommunications, 2009
This article discusses steps towards the design, construction and production of a device used for lifetime assessment of large-scale bearings. The machine is reviewed as a mechatronic entity, comprised of three parts - mechanical, electro technical and ...
Slavomir Hrcek   +4 more
doaj   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

open access: yesAdvanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari   +4 more
wiley   +1 more source

Microscale Patterning of Ultrahigh‐Viscosity Metallic‐Polymer Composites via Embedded Droplet Writing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon   +4 more
wiley   +1 more source

Development and optimization of the control device for the hydraulic drive of the belt conveyor

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Designing new hydraulic equipment requires consideration of the peculiarities of the operating modes of the technological machines. This particularly applies to the hydraulic drive of a belt conveyor, which operates under variable load conditions ...
Leonid Polishchuk   +4 more
doaj   +1 more source

Symbolic Important Point Perceptually and Hidden Markov Model Based Hydraulic Pump Fault Diagnosis Method

open access: yesSensors, 2018
Hydraulic pump is a driving device of the hydraulic system, always working under harsh operating conditions, its fault diagnosis work is necessary for the smooth running of a hydraulic system.
Yunzhao Jia, Minqiang Xu, Rixin Wang
doaj   +1 more source

Analysis of the Batychron Research Project

open access: yesScientific Journal of Gdynia Maritime University, 2022
The article presents the research project called ‘Batychron’. Batychron is a flexible underwater bell patented by the Gdynia Maritime University as a ‘device applicable in hydraulic engineering for underwater transport and diving with the safety of ...
Julia Kosiek   +2 more
doaj   +1 more source

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