Results 61 to 70 of about 477,598 (318)

A Novel Energy Recovery System for Parallel Hybrid Hydraulic Excavator

open access: yesThe Scientific World Journal, 2014
Hydraulic excavator energy saving is important to relieve source shortage and protect environment. This paper mainly discusses the energy saving for the hybrid hydraulic excavator.
Wei Li   +3 more
doaj   +1 more source

Identifying Hydraulic Conditions for Discolouration Material Accumulation

open access: yesThe 3rd International Joint Conference on Water Distribution Systems Analysis & Computing and Control for the Water Industry (WDSA/CCWI 2024)
Understanding the interactions between hydraulic conditions and the accumulation of discolouration material in drinking water distribution systems is crucial to help identify risk locations and inform effective maintenance. With two accumulation processes now acknowledged and the known range in size and characteristics of discolouration material, this ...
Lokk, R., Boxall, J., Husband, S.
openaire   +3 more sources

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

Design, Modelling and Validation of Hydraulic Servo Actuator With Passive Compliance for Legged Robots

open access: yesIEEE Access, 2018
The hydraulic driven legged robots walking on the ground always encounter impact forces due to the contacts between feet and ground. Aiming to reduce the impact forces, a novel passive compliance method is proposed by adding a miniature hydraulic ...
Zisen Hua   +5 more
doaj   +1 more source

Improving the Accuracy and Scope of Control-Oriented Vapor Compression Cycle System Models [PDF]

open access: yes, 2006
The benefits of applying advanced control techniques to vapor compression cycle systems are well know. The main advantages are improved performance and efficiency, the achievement of which brings both economic and environmental gains.
Alleyne, Andrew G., Eldredge, B.D.
core  

Supramolecular Engineering of Fluid Pressure in Filamentous Hybrid Double Network Hydrogels for 3D Chondrocyte Culture

open access: yesAdvanced Healthcare Materials, EarlyView.
Inspired by the water‐rich and interconnected biopolymer networks of native load‐bearing tissues, we disclose a connectable design for a hybrid filamentous supramolecular and covalent double network hydrogel generated through in situ photopolymerization.
Ciqing Tong   +11 more
wiley   +1 more source

Modelling, Testing and Analysis of a Regenerative Hydraulic Shock Absorber System [PDF]

open access: yes, 2016
To improve vehicle fuel economy whilst enhancing road handling and ride comfort, power generating suspension systems have recently attracted increased attention in automotive engineering.
Ball, Andrew   +3 more
core   +9 more sources

Contour measurement system [PDF]

open access: yes, 1979
A measurement system for measuring the departures from a straight line of discrete track sections of a track along a coal face in a mine employing a vehicle having a pair of spaced wheel assemblies which align with the track is presented. A reference arm
Campbell, R. A.   +3 more
core   +1 more source

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

A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
This work presents the synthesis of a polyacrylamide hydrogel wherein biomass‐derived biochar is co‐encapsulated with the enzyme horseradish peroxidase (HRP). The resulting composite hydrogel possesses balanced electron‐rich and electron‐deficient domains, creating an optimal microenvironment that concentrates both hydrogen peroxide and phenol ...
Shengzhe Wang   +9 more
wiley   +1 more source

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