Results 91 to 100 of about 1,449 (203)
Increased Endurance of Nonvolatile Photonics Enabled by Nanostructured Phase‐Change Materials
Tapered and segmented islands of the phase‐change material (PCM) antimony selenide (Sb2Se3) integrated on silicon microring resonators enable ultra‐low‐loss, high‐endurance, non‐volatile photonic tuning. The nanostructured PCM design suppresses interfacial scattering and thermal stress, achieving record endurance over 100 million electrical switching ...
Jayita Dutta +10 more
wiley +1 more source
Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad +3 more
wiley +1 more source
M3D‐DPWM strategy for three‐phase four‐leg inverter with higher harmonic suppression capability
Three‐phase four‐leg inverters are widely used in power systems due to their inherent ability to handle unbalanced loads. However, with conventional 3D space vector pulse width modulation (3D‐SVPWM), high harmonics of large amplitude exist in the output ...
Ning Li +4 more
doaj +1 more source
Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors
This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang +4 more
wiley +1 more source
Inverter-based systems encounter significant challenges in mitigating common-mode voltage (CMV) and minimizing inverter losses. Despite various space vector pulse-width modulation (SVPWM) techniques proposed to address these issues, a comprehensive ...
Kotb B. Tawfiq +2 more
doaj +1 more source
Progress in Strain Engineering of 2D‐Integrated Heterostructures for Ultrasensitive Sensors
. ABSTRACT Two‐dimensional (2D) integrated heterostructures have emerged as a cornerstone in the advancement of next‐generation sensor technologies. These heterostructures, which combine materials with different dimensionalities, have led to significant breakthroughs in sensing performance and device integration.
That Buu Ton +4 more
wiley +1 more source
Rejuvenated Amorphous Alloys: Processing Methods, Microstructures and Mechanical Properties
Three rejuvenation methods – mechanical and thermal rejuvenation, and other rejuvenation routes such as ultrasonic processing – can be used to modify structures of glassy alloys, especially atomic clusters, and therefore enhances plasticity and activates work‐hardening behaviors.
Can Yang +10 more
wiley +1 more source
This paper proposes a discontinuous pulse width modulation (DPWM) method for single inverter dual parallel (SIDP) permanent magnet synchronous motor (PMSM) drives to minimize the power loss of the inverter.
Sang-Jun Lee, Kyo-Beum Lee
doaj +1 more source
In the last decade, countries have experienced increased solar radiation, leading to an increase in the use of solar photovoltaic (PV) systems to boost renewable energy generation. However, the high solar penetration into these systems can disrupt the normal operation of the distribution grid. Thus, a major concern is the impact of these units on power
Juan-Ramon Heredia-Larrubia +3 more
openaire +2 more sources
Temperature‐graded ALD of HfZrOx (HZO) enables strain‐enhanced stabilization of the ferroelectric o‐phase, achieving simultaneously high polarization, fast switching, and robust endurance in BEOL‐compatible FeCAPs. ABSTRACT Ferroelectric Hf0.5Zr0.5O2 (HZO) capacitors hold great promise for next‐generation nonvolatile memory and logic applications ...
Sheng‐Yen Zheng +5 more
wiley +1 more source

