Results 71 to 80 of about 3,059,262 (252)

The Linear and Nonlinear Electro-MechanicalFin Actuator

open access: yesAl-Khawarizmi Engineering Journal, 2011
Electromechanical actuators are used in a wide variety of aerospace applications such as missiles, aircrafts and spy-fly etc. In this work a linear and nonlinear fin actuator mathematical model has been developed and its response is investigated by ...
Zeina A. Abdul Redha, Shaimaa A. Mahdi
doaj  

Multi-Fidelity Design Optimisation of a Solenoid-Driven Linear Compressor

open access: yesActuators, 2020
Improved management and impermeability of refrigerants is a leading solution to reverse global warming. Therefore, crank-driven reciprocating refrigerator compressors are gradually replaced by more efficient, oil-free and hermetic linear compressors ...
Jarl Beckers   +5 more
doaj   +1 more source

Rotary 3D Printing With Integrated Electroplating

open access: yesAdvanced Engineering Materials, EarlyView.
A rotary material extrusion platform integrates localized copper electroplating with printing and encapsulation to fabricate cylindrical polymer–metal structures containing fully embedded, low‐resistance conductive pathways that enable internal Joule heating and thermally activated shape‐memory responses.
Antonio Zagaria   +5 more
wiley   +1 more source

Application and Validation of a Linear Electromagnetic Actuator within a Haptic Piano Keyboard

open access: yes, 2019
Using a linear actuator in a digital keyboard allows to reproduce the touch of an acoustic piano action. Our work consists in the design of a one-key prototype actuated by a linear electromagnetic voice coil.
Dehez, Bruno   +3 more
core   +1 more source

Experimental results from a Thomson-coil actuator for a vacuum interrupter in an HVDC breaker

open access: yesThe Journal of Engineering, 2019
Recent developments in high-voltage direct current transmission technology and the plans for multi-terminals motivate research efforts on the fast DC breaker.
Antoine Baudoin   +6 more
doaj   +1 more source

A fault estimation and fault–tolerant control based sliding mode observer for LPV descriptor systems with time delay

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2021
This paper considers the problem of fault-tolerant control (FTC) and fault reconstruction of actuator faults for linear parameter varying (LPV) descriptor systems with time delay.
Hamdi Habib   +3 more
doaj   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

open access: yesAdvanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco   +8 more
wiley   +1 more source

Fault detection and isolation of actuator failures for a large transport aircraft [PDF]

open access: yes, 2007
- We consider the problem of designing residual generators with least dynamical orders to solve actuator fault detection and isolation problems for a Boeing 747-100/200 aircraft. The main result of our analysis is the proof of feasibility of the complete
Varga, Andreas
core  

The Linear and Nonlinear Electro-Mechanical Fin Actuator

open access: yesAl-Khawarizmi Engineering Journal, 2018
Electromechanical actuators are used in a wide variety of aerospace applications such as missiles, aircrafts and spy-fly etc. In this work a linear and nonlinear fin actuator mathematical model has been developed and its response is investigated by ...
Shaimaa A. Mahdi, Zeina A. Abdul Redha
doaj  

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

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