Results 81 to 90 of about 124,610 (305)

The Influence of the form Error after Rotor Manufacturing on the Output Characteristics of an Orbital Hydraulic Motor [PDF]

open access: yes, 2018
The technology of rotors manufacturing for orbital hydraulic motors causes a certain form error of the gear surface. This leads to oscillations of the diametrical gap between the rotors.
Panchenko, Anatolii   +14 more
core  

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Experimental Studies on the Friction of Mobile Elements in Hydraulic Equipment

open access: yesScientific Bulletin of Valahia University: Materials and Mechanics
In this study we will focus on the problems that arise due to the high travel speeds that the piston of a hydraulic motor develops during operation. These speeds lead to an increase in the value of the kinetic friction coefficient.
Despa Veronica   +2 more
doaj   +1 more source

Modeling and Control of a 600 kW Closed Hydraulic Wind Turbine with an Energy Storage System

open access: yesApplied Sciences, 2018
In this paper, an innovative closed hydraulic wind turbine with an energy storage system is proposed. The hydraulic wind turbine consists of the wind rotor, the variable pump, the hydraulic bladder accumulator, the variable motor, and the synchronous ...
Liejiang Wei   +4 more
doaj   +1 more source

The Dynamic Model of Plane Mechanism with Variable Ratio. [PDF]

open access: yes, 2016
The paper contains the proposal how to reduce many–elements plane mechanism with one degree of freedom to chosen axis or line as one–element model of mechanism.
Cink, Jacek, Kosucki, Andrzej
core  

Paraplegic standing supported by FES-controlled ankle stiffness [PDF]

open access: yes, 2001
The objective of this paper was to investigate whether a paraplegic subject-is able to maintain balance during standing by means of voluntary and reflex activity of the upper body while being supported by closed loop controlled ankle stiffness using FES.
Hunt, K.J., Jaime, R.P., Matjacic, Z.
core   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

open access: yesAdvanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim   +10 more
wiley   +1 more source

The 25 kWe solar thermal Stirling hydraulic engine system: Conceptual design [PDF]

open access: yes
The conceptual design and analysis of a solar thermal free-piston Stirling hydraulic engine system designed to deliver 25 kWe when coupled to a 11 meter test bed concentrator is documented.
Emigh, Grant   +4 more
core   +1 more source

Design of a wrist and operator interface for an agricultural manipulator : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology in Engineering and Automation at Massey University [PDF]

open access: yes, 2000
Roadside mowing and tree pruning has always been a job that most people would consider as unpleasant. This project is concerned with the development of a system to make these tasks simpler, safer and more pleasant for the operator.
Noaro, Adrian Peter Charles
core  

Droplet Electricity Generators With Maximized Energy Collection Zone Enabled by Aloe‐Inspired Midrib and Cuticle

open access: yesAdvanced Materials, EarlyView.
An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee   +8 more
wiley   +1 more source

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