Results 81 to 90 of about 532,465 (286)

Enhanced phase and charge diffusion due to radio-frequency/microwave excitation in Bloch transistors [PDF]

open access: yes, 2013
Current-voltage characteristics and switching current of Bloch transistors under radio-frequency/microwave excitations were experimental studied, respectively revealing pronounced summational superconducting phase diffusion and central-island charge ...
Saxon Liou, Watson Kuo
core   +2 more sources

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

open access: yesAdvanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh   +4 more
wiley   +1 more source

Research on a Three-Phase Soft-Switching Inverter Based on a Simple Auxiliary Snubber Circuit

open access: yesEnergies
This study presents a novel soft-switching inverter distinguished by a simplified topology and an innovative modulation approach. The design aims to optimize the energy conversion processes commonly found in auxiliary snubber circuits.
Dawei Dai, Hua Zheng
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

open access: yesAdvanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed   +7 more
wiley   +1 more source

Thermally assisted spin transfer torque switching in synthetic free layers

open access: yes, 2011
We studied the magnetization reversal rates of thermally assisted spin transfer torque switching in a ferromagnetically coupled synthetic free layer theoretically.
Imamura, Hiroshi, Taniguchi, Tomohiro
core   +1 more source

Dynamic Control of Synaptic Plasticity by Competing Ferroelectric and Trap‐Assisted Switching in IGZO Transistors with Al2O3/HfO2 Dielectrics

open access: yesAdvanced Functional Materials, EarlyView.
A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon   +8 more
wiley   +1 more source

High Power Zero-Voltage and Zero-Current Switching DC-DC Converters

open access: yesAdvances in Electrical and Electronic Engineering, 2005
The paper presents principles and properties of the soft switching PWM DC-DC converters. The attention is focused mainly on high power applications and thus the full-bridge inverters are used in DC-DC converters.
Jaroslav Dudrik
doaj  

Ultra High Step‐Up Soft Switching Converter Based on the Interleaved Structure

open access: yesEnergy Science & Engineering
A new interleaved high step‐up DC–DC converter is presented in this paper, providing very high voltage conversion, significantly lowering the voltage stress across semiconductor components, and minimizing conduction losses.
Mahdi Alizadeh   +3 more
doaj   +1 more source

Study of switching transients in high frequency converters [PDF]

open access: yes
As the semiconductor technologies progress rapidly, the power densities and switching frequencies of many power devices are improved. With the existing technology, high frequency power systems become possible. Use of such a system is advantageous in many
Elbuluk, Malik E.   +2 more
core   +1 more source

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