Results 61 to 70 of about 94,044 (266)

EKF Based Fuzzy PI Controlled Speed Sensorless Power Optimal Control of a Direct Drive Power System

IEEE Access, 2019
Faced with wave irregularity, the corrosion of the mechanical sensor in wave power generation systems, hazardous working conditions, and the inaccuracy of conventional control methods in the shifting system, a new type of irregular wave maximum wave ...
Junhua Yang, Baozhou Huang, Hui Shen, Dongshen Xie, Fengjun Xiong, Siling Lu, Haifeng Chen   +6 more
doaj   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

Advanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu, Jun Xu, Minmin Fan, Jingcheng Xu, Mengyuan Li, Yun Gong, Weiwei Yang, Lei Li, Yong Zhou, Deqiang Zhao, Yuhua Xue, Xingtao Xu, Chang Q. Sun, Liming Dai   +13 more
wiley   +1 more source

Spin Injection Of Exciton–Polaritons With Halide Perovskites At Room Temperature

Advanced Functional Materials, EarlyView.
A monolithic Tamm‐plasmon microcavity embedding a two‐dimensional halide perovskite enables room‐temperature spin injection of exciton‐polaritons under quasi‐resonant optical excitation. Polarization‐resolved spectroscopy reveals partial preservation of the injected spin in the lower polariton branch, while bare excitons remain fully depolarized.
Elena Sendarrubias Arias‐Camisón, Maksim Lednev, Jorge Cuadra, Raúl Gago, Luis Viña, Francisco José García Vidal, Johannes Feist, Ferry Prins, Carlos Antón Solanas   +8 more
wiley   +1 more source

Smart Energy Materials of PZT Ceramics [PDF]

International Journal on Smart Material and Mechatronics, 2015
To better understand the material properties of lead zirconate titanate (PZT) ceramics, the domain-switching characteristics and electric power generation characteristics have been investigated during loading and unloading by using various ...
Mitsuhiro Okayasu
doaj  

Prediction of Wave Power Generation Using a Convolutional Neural Network with Multiple Inputs

Energies, 2018
Successful development of a marine wave energy converter (WEC) relies strongly on the development of the power generation device, which needs to be efficient and cost-effective. An innovative multi-input approach based on the Convolutional Neural Network
Chenhua Ni, Xiandong Ma
doaj   +1 more source

Irradiation‐Induced Spin Bath Evolution and as‐Grown Hydrogen Defects in CVD Diamond Revealed by NV‐Based DEER Spectroscopy

Advanced Functional Materials, EarlyView.
Here, we provide the reader with the current state of the art in the fabrication of high‐T2‐coherence diamond, optimized through the use of double electron–electron resonance (DEER) spectroscopy. We reveal the main as well as yet unidentified spin defects, the reduction of which is essential for reducing the spin bath and fabricating materials for ...
Olga Rubinas, Jeroen Prooth, Michael Petrov, Remy Vandebosch, Emilie Bourgeois, David Chvátil, Milos Nesladek   +6 more
wiley   +1 more source

Tidal waves Based Power Generation

International Journal of Recent Technology and Engineering (IJRTE), 2019
Wave energy power generation is a clean energy mechanism. Wave energy assures to be renewable source of energy with zero emission. In this experimental outcome of a built in wave generator with some additional features are reported.
Palpandi. M, Merlin Medona.C, Balaji. G, Nagaraja. M   +3 more
openaire   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Development of a Horizontal-Axis H-Darrieus Turbine as a Wave Energy Converter: Semi-Analytical Study on Coastal Wave Characteristics for Conceptual Design

Energies
A horizontal-axis H-Darrieus turbine has been developed as a wave energy converter (WEC) to harness energy from coastal waves. In this paper, a semi-analytical method is presented to quantify the wave power contributing to power generation by the H ...
Kazuaki Uchibori, Tsumoru Shintake
doaj   +1 more source

Development of an Active Power Reserve Management Method for DC Applied Wave-Wind Combined Generation Systems

Energies, 2015
A system that combines a wind turbine and a wave generator can share the off-shore platform and therefore mix the advantages of the transmission system construction and the power conversion system.
Seungmin Jung, Yeuntae Yoo, Hyunwook Kim, Jae-Hyeong Lee, Minhan Yoon, Gilsoo Jang   +5 more
doaj   +1 more source