Results 131 to 140 of about 1,873 (236)

Discontinuous pulse width modulations for two-level three-phase voltage source inverter based on zero-sequence optimization

, 2019
The carrier-based pulse width modulations are used to control the operation of UPS, motor drives, and grid-connected converters. In the UPS and motor drive applications, the connected load can be linearly controlled until 95% of the rated voltage.
Iftikhar, Waleed
core  

Disturbance‐Resilient Voltage/Power‐Quality Management for Islanded Inverters Using Self‐Tuning Type‐3 Fuzzy Controller

Energy Science &Engineering, Volume 14, Issue 6, Page 2816-2838, June 2026.
An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian, Jun‐Bo Mao, Nurkhat Zhakiyev, Didar Yedilkhan, Ruslan Omirgaliyev, Du Changdong, Amirhossein Khosravi Sarvenoee, Ardashir Mohammadzadeh   +7 more
wiley   +1 more source

Low sediment retention efficiency limits delta formation in tectonically confined high‐energy coastal systems

Earth Surface Processes and Landforms, Volume 51, Issue 6, June 2026.
Conceptual framework showing how tectonic confinement, steep monsoon‐driven river dynamics, high‐energy coastal processes and offshore sediment dispersal together limit sediment retention at the Narmada–Tapi river mouths, suppressing sustained subaerial delta formation despite high sediment supply. Abstract Although deltaic growth is commonly linked to
Sumit Das, Gianvito Scaringi
wiley   +1 more source

Mechanistic Insights Into Color and Texture Stability of Frozen Tropical Vegetables: Processing, Modeling, and Preservation Strategies

Food Science &Nutrition, Volume 14, Issue 6, June 2026.
This review elucidates the mechanistic pathways governing color and texture degradation in frozen tropical vegetables, emphasizing pigment oxidation, enzymatic softening, and ice crystal‐induced structural damage. It integrates kinetic, Arrhenius, RSM, and machine‐learning models with advanced preservation strategies to optimize freezing processes ...
Muhammad Muntasir Mahmud, Md. Suhel Mia, Md. Hassan Bin Nabi, Abid Hassan Arnab, Wahidu Zzaman   +4 more
wiley   +1 more source

DISCRETIZED SINUSOIDAL PULSE WIDTH MODULATION STRATEGY FOR HIGH FREQUENCY LINK AC CONVERTERS

, 2005
This work demonstrates the design and implementation of a digitally encoded Sinusoidal Pulse Width Modulation strategy for the switching of bi-directional secondary side power switches of an AC-link.
YADAV, KRISHAN
core  

Recent Advances in the Laser‐Based Fabrication and Applications of High‐Entropy Alloy Nanoparticles

MetalMat, Volume 3, Issue 2, June 2026.
This review presents recent advances in the laser‐based fabrication of high‐entropy alloy nanoparticles, focusing on scalable, environmentally friendly, and compositionally tunable synthesis methods. It highlights the critical influence of laser parameters on nanoparticle size, phase, and morphology, enabling tailored properties for applications in ...
Bibek Kumar Singh, Rajesh Rawat, Archana Tiwari, Venugopal Rao Soma, Ajay Tripathi   +4 more
wiley   +1 more source

Dual randomized pulse width modulation technique for buck converter fed by photovoltaic source

, 2018
Randomized pulse width modulation (RPWM) is a technique used to spread the power spectrum over a wide frequency range; it aims to reduce the amplitudes of the power harmonics and consequently the conducted electromagnetic interferences (EMI).
BOUDOUDA, Aimad, BOUDJERDA, NASSERDINE, BOUZIDA, AHCENE, Aibeche, Abderrazak   +3 more
core  

Enhancing Charge Transport and Extraction in Ta3N5 Photoanodes Via Ti Doping and TiN Contact Layers

Small, Volume 22, Issue 31, 2 June 2026.
Ta3N5${\rm Ta}_3{\rm N}_{5}$ is a promising photoanode for solar water splitting but suffers from poor charge transport and interfacial losses. We combine Ti compensation doping with ultrathin TiN back‐contact interlayers to suppress bulk recombination, enhance carrier mobility and lifetime, and enable efficient carrier extraction, yielding ...
Laura I. Wagner, Dominik Moser, Dennis Friedrich, Frans Munnik, Olivier Henrotte, Emiliano Cortés, Roel van de Krol, Verena Streibel, Ian D. Sharp   +8 more
wiley   +1 more source

Reconfigurable Nanogap SERS for Multiscale Molecular Sensing on Curved Surfaces

Small, Volume 22, Issue 35, 23 June 2026.
Reconfigurable Au‐coated SMP nanocomposites enable adaptive SERS through reversible tuning of Au─Au nanogaps. Embedded AgNPs serve as photothermal triggers and reinforcements. Wide gaps facilitate macromolecule detection, while narrowed gaps enhance small‐molecule signals for reliable multiscale sensing on curved surfaces.
Goum Min, Jinsoo Na, Yugyeong Kang, Siheon Lee, Byounghyun Jeon, Hanjae Kim, Hyunjun Lee, Beomsoo Chun, Soojeong Yim, Jeonghun Kwak, Youngho Eom, Chang Yeol Lee, Soon Hyoung Hwang, Juhyuk Park   +13 more
wiley   +1 more source

Research on a Phase-Shift-Based Discontinuous PWM Method for 24V Onboard Thermally Limited Micro Voltage Source Inverters. [PDF]

Micromachines (Basel)
Wang S, Xia C.
europepmc   +1 more source