Results 91 to 100 of about 12,240 (308)

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

Advanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann, Ryan Kalgreen, Laura M. Comella   +2 more
wiley   +1 more source

A Thorough Procedure to Design Surface-Mounted Permanent Magnet Synchronous Generators

Machines
This paper sets forth a thorough procedure to design surface-mounted permanent magnet synchronous generators. Since synchronous generators generate the majority of electrical energy, their relevance in society nowadays is substantial.
Gustavo Garbelini de Menezes, Narco Afonso Ravazzoli Maciejewski, Elissa Soares de Carvalho, Thiago de Paula Machado Bazzo   +3 more
doaj   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

A Study of the Impacts Caused by Unbalanced Voltage (2%) in Isolated Synchronous Generators

IEEE Access, 2019
This paper presents an analysis of the oscillations caused by unbalanced loads in salient pole synchronous generators that operate in isolation under steady state.
Wagner E. Vanco, Fernando B. Silva, Jose Roberto B. A. Monteiro   +2 more
doaj   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Finite element assisted method to reduce harmonic content in the airgap flux density of a high temperature superconducting coreless rotor generator

, 2008
The paper reports on an investigation to reduce harmonic content in the airgap flux density of a high temperature superconducting synchronous generator with a coreless rotor.
Lukasik, B., Goddard, K. F., Sykulski, J. K., Goddard, K.F., Sykulski, J.K.   +4 more
core  

Modelling, control and performance assessment of a Wave Energy Converter equipped with an All-Electric Power Take-Off [PDF]

, 2013
The first goal of the thesis will be the complete wave-to-wire modeling of a point absorber Wave Energy Converter (WEC), by using suitable software tool (Matlab-Simulink).
Bozzetto, Alessandro
core  

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

Advanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky, Márk Sárközi, Ibolya Zsoldos, Zoltán Weltsch   +3 more
wiley   +1 more source

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Modelling of a DC excitation of a synchronous generator

, 2015
This paper describes the modelling of a DC excitation system of a synchronous generator. DC excitation system is one of the various methods of excitation that are applied in power systems. Even though the AC excitation methods are commonly used nowadays,
Mtsamane, M., Muteba, M.
core   +1 more source