Results 51 to 60 of about 48,260 (309)

Reconstructing the intermittent dynamics of the torque in wind turbines

open access: yes, 2014
We apply a framework introduced in the late nineties to analyze load measurements in off-shore wind energy converters (WEC). The framework is borrowed from statistical physics and properly adapted to the analysis of multivariate data comprising wind ...
Lind, Pedro G.   +2 more
core   +1 more source

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

open access: yesAdvanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao   +12 more
wiley   +1 more source

Development of Urban Electric Bus Drivetrain [PDF]

open access: yes, 2019
The development of the drivetrain for a new series of urban electric buses is presented in the paper. The traction and design properties of several drive variants are compared.
Chyský J.   +5 more
core   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Torque Ripple Minimization in a Switched Reluctance Drive by Neuro-Fuzzy Compensation

open access: yes, 2000
Simple power electronic drive circuit and fault tolerance of converter are specific advantages of SRM drives, but excessive torque ripple has limited its use to special applications.
Branco, P. J. Costa   +4 more
core   +1 more source

Hydrodynamics of the Oscillating Wave Surge Converter in the open ocean [PDF]

open access: yes, 2012
A potential flow model is derived for a large flap-type oscillating wave energy converter in the open ocean. Application of the Green's integral theorem in the fluid domain yields a hypersingular integral equation for the jump in potential across the ...
Dias, F., Renzi, E.
core   +2 more sources

Interconnected Porous Hydrogels with Tunable Anisotropy Through Aqueous Emulsion Bioprinting

open access: yesAdvanced Functional Materials, EarlyView.
A 3D bioprintable microporous bioink is developed using an aqueous two‐phase system (ATPS) composed of extracellular matrix (ECM) mimetic biopolymers. The ATPS bioink enables the fabrication of interconnected porous architectures with up to 70% porosity, supporting long‐term cell viability and 3D cell alignment, enabling a simultaneous generation of ...
Hugo Edgar‐Vilar   +4 more
wiley   +1 more source

RDG System in Remote Areas with Utility or Local Feed Topology and Operation Strategy [PDF]

open access: yes, 2014
In remote regions with availability of wind energy, a RDG (renewable distributed generation) system is an advantageous alternative to increase the provision of electrical supply.
Battaiotto, Pedro Eduardo   +3 more
core   +2 more sources

Controlled Movement of Soft Actuators using Multi‐Responsive Microgel Arrays and Microcirculatory Systems

open access: yesAdvanced Functional Materials, EarlyView.
Microscale hydrogels (microgels) feature improved mass transport characteristics supportive of fast actuation and chemical tunability amenable to programmed stimuli response. A unique soft actuator architecture is realized by encapsulating microgels in soft microcirculatory systems which enable the convenient delivery of liquid stimuli for powering and
Nengjian Huang   +2 more
wiley   +1 more source

Hydraulic Performance Analysis and Design of Torus of Flat Hydraulic Torque Converter

open access: yesJixie chuandong, 2015
The hydraulic flat torque converter is designed for the purpose of study on how the flatness ratio effect on the hydraulic performance. The flat torus new design method based on the ellipse is used. Four kinds of different flatness ratio hydraulic torque
Zhu Wenjie, Wu Guangqiang
doaj  

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