Results 51 to 60 of about 5,275,359 (268)

An adaptive synchronous rectifier driving strategy for unregulated LLC resonant converter

open access: yesIET Power Electronics
LLC resonant converters are widely adopted in many different industrial applications due to their high efficiency operation. To further improve LLC resonant converters' efficiency, the secondary unregulated diode rectifier is replaced by the synchronous ...
Yuqi Wei, Ziang Li, Jinjun Liu
doaj   +1 more source

Atom Probe Tomography as an Emerging Tool for Understanding Defect‑Driven Mechanisms in HfO2‑Based Ferroelectrics

open access: yesAdvanced Functional Materials, EarlyView.
This Perspective highlights atom probe tomography as a powerful tool for understanding the atomic‐scale defect chemistry in HfO2‐based ferroelectrics. 3D mapping of dopants, point defects, and interface chemistry can provide new insight into defect‐driven mechanisms underpinning the ferroelectricity in the system and guide the design of more reliable ...
Kasper Hunnestad   +3 more
wiley   +1 more source

Multipulse improved-power-quality AC–DC convertors for vector-controlled induction-motor drives

open access: yes, 2006
The paper deals with polygon autotransformer-based 12-pulse and 18-pulse AC-DC convertors feeding vector-controlled induction-motor drives (VCIMDs) for improving power quality at the point of common coupling (PCC).
Singh, B., Garg, V., Bhuvaneswari, G.
core   +1 more source

PWM ZCS DC Motor Drive and DC Power Supply [PDF]

open access: yes, 2011
Following the extension and increase in capacity of power electronic elements, many convertors with special applications have been designed. Convertors such as rectifiers, AC and DC power supplies, AC and DC drivers and so on. At present, optimization of
Montazeri, Bardia; Department of Electrical Engineering, Islamic Azad University, Iran
core   +1 more source

Memristive‐Gated RC‐Delay Synaptic Transistors for Time‐Encoded Analog in‐Memory Computing

open access: yesAdvanced Functional Materials, EarlyView.
A Memristive‐Gated Transistor for Time‐Encoded Analog In‐Memory Computing — By exploiting the RC delay of a self‐rectifying interface‐type memristor, nonlinear I–V distortion is structurally bypassed, enabling 3‐bit nonvolatile memory, spike‐timing‐based analog encoding, and hardware‐calibrated reservoir‐computing validation within a unified device ...
Yun‐Seo Shin   +7 more
wiley   +1 more source

An improved damping adaptive grid‐forming control for black start of permanent magnet synchronous generator wind turbines supported with battery energy storage system

open access: yesIET Generation, Transmission & Distribution, 2023
Permanent magnet synchronous generators (PMSGs) equipped with back‐to‐back grid‐forming converters have the ability to form a 100% renewable energy power grid.
Jianhui Meng   +4 more
doaj   +1 more source

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

open access: yesAdvanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash   +4 more
wiley   +1 more source

Soft‐Switched Non‐Isolated Double‐Input High Step‐Up Converter With Low Input Current Ripple

open access: yesIET Power Electronics
This paper proposed a novel high step‐up converter with a dual‐input, single‐output DC–DC converter configuration. The design achieves a high conversion ratio while reducing voltage stress on switching devices and enhancing overall efficiency. The design
Hayder Ameer Hasan Al‐Ameedee   +3 more
doaj   +1 more source

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open access: yes, 2012
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Лусто И.И, Койпиш В.Г
core  

3D Bioprinted Glioblastoma Multiforme Models: How the Extracellular Matrix Glycosignature Influences Drug Response

open access: yesAdvanced Functional Materials, EarlyView.
Aberrant glycosylation in the glioblastoma tumor microenvironment drives therapeutic resistance. Here, a 3D bioprinted model was engineered by incorporating α‐NeuNAc‐(2→3)‐β‐D‐Gal‐ and chondroitin sulfate. Combined multiplex immunofluorescence and synchrotron‐based nanoCT analysis revealed that glycan‐matrix interactions dictate specific drug‐escape ...
Francesca Cadamuro   +25 more
wiley   +1 more source

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