Results 71 to 80 of about 6,872,512 (287)

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Analysis of THD, RMS Output Voltage and Voltage Stree Across Switching Device for 1500V DC Bus Three Level ANPC Inverter

ITEGAM-JETIA
Multilevel topologies have been used more frequently for high voltage applications in order to produce a staircase voltage waveform with total harmonic distortion (THD).
Miteshkumar Nileshbhai Priyadarshi, Sandeep Chakravorty   +1 more
doaj   +1 more source

An improved submodule unified pulse modulation scheme for a hybrid modular multilevel converter

CES Transactions on Electrical Machines and Systems, 2017
This paper presents an improved submodule unified pulse width modulation (SUPWM) scheme for a hybrid modular multilevel converter (MMC) composed of half-bridge submodules (HBSMs) and full-bridge submodules (FBSMs).
Sizhao Lu, Kai Li, Xiaoting Deng, Siqi Li, Zhengming Zhao   +4 more
doaj   +1 more source

A New Strategy for Creating Quantum Light Emitters Via Post‐Growth Hydrogen‐Ion Irradiation of III‐V Nanowires

Advanced Functional Materials, EarlyView.
A post‐growth method is demonstrated to realize energy‐tunable quantum emitters in GaAs/GaAsN/GaAs core–multishell nanowires on a Si substrate. By combining the N‐induced bandgap reduction with H‐ion irradiation, the GaAsN potential landscape is engineered, enabling isolated, narrow emission lines that function as single‐photon sources with g(2)(0) ∼ 0.
Akant Sagar Sharma, Paolo De Vincenzi, Nadine Denis, Francesca Santangeli, Riccardo Pallucchi, Harikrishnan Gopalakrishnan, Elena Blundo, Antonio Polimeni, Marco Felici, Fumitaro Ishikawa, Marta De Luca   +10 more
wiley   +1 more source

Analysis on Displacement Angle of Phase-Shifted Carrier PWM for Modular Multilevel Converter

Energies, 2020
This paper provides theoretical and experimental discussions on the characteristics of the modular multilevel converter (MMC) when phase-shifted carrier sinusoidal pulse-width modulation (PSC-SPWM) is applied.
Qian Cheng, Chenchen Wang, Jian Wang
doaj   +1 more source

A hybrid level shifted carrier‐based PWM technique for modular multilevel converters

IET Power Electronics, 2021
This paper presents a hybrid level shifted carrier‐based pulse width modulation (HLSC‐PWM) technique for modular multilevel converters (MMCs). The concept of the proposed HLSC‐PWM method is developed by combining the principles of phase disposition PWM ...
Aswini Kumar M, Anjana K. Gopi, Jayanta Biswas, Mukti Barai   +3 more
doaj   +1 more source

Atomic‐Scale Visualization of Topotactic Resistive Switching in Epitaxial La0.5Sr0.5CoOx Neuromorphic Memristors

Advanced Functional Materials, EarlyView.
Forming‐free epitaxial Pt/La0.5Sr0.5CoOx (LSCO)/La0.5Sr0.5MnO3 (LSMO) memristors exhibit heterogeneous and partially reversible topotactic switching involving brownmillerite (BM)‐, Grenier (GN)‐like‐, and perovskite (PV)‐like configurations. Atomic‐resolution scanning transmission electron microscopy and in situ transmission electron microscopy resolve
Zi‐Qin Hong, Yen‐Jung Chen, Shih‐Chao Chang, Jui‐yuan Chen, Jan‐Chi Yang, Wen‐Wei Wu   +5 more
wiley   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

Advanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri, Asif Abdullah Khan, Md Fahim Al Fattah, Mahmoud Almadhoun, Shamaila Shahzadi, Aixi Pan, Md Soyaeb Hasan, Henry Wu, Arash Aghigh, Bhawna Bhawna, François Légaré, Vivek Maheshwari, Dayan Ban   +12 more
wiley   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 more
wiley   +1 more source

A Pulse-Width Phase-Shift Triangle Modulation (PSTM-PWM) Technique to Reduce Transformer Heating

Electronics
Power transformers are fundamental devices in electrical power transmission and distributionsystems as they regulate voltage levels, which helps reduce system losses. However,their operation can be affected by temperature, with increases in temperature causing adecrease in their efficiency and lifetime.
Heredia-Larrubia, Juan R., Meco Gutiérrez, Mario Jesús, Ruiz González, Antonio Francisco, Pérez Hidalgo, Francisco Manuel   +3 more
openaire   +3 more sources