Results 91 to 100 of about 28,108 (310)

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Bidirectional DC-DC Converter Using Zero Voltage Switching

open access: yesRevista Gestão Inovação e Tecnologias, 2021
DC-DC Converters are used for storage of energy from renewable energy resources. These converters uses zero voltage switching concept to reduce the losses. In order to increase the operating range of the converter duty ratio is varied using effective control technique. By changing the duty ratio with transformer in the output, zero switching losses can
openaire   +2 more sources

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

Rapid design of LCC current-output resonant converters with reduced electrical stresses [PDF]

open access: yes, 2005
The paper presents and validates a straightforward design methodology for realising LCC current-output resonant converters, with the aim of reducing tank currents, and hence, electrical stresses on resonant components.
Bingham, Chris, Gilbert, A, Stone, D A
core   +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

A novel high-voltage power supply using LCCL resonant DC-DC converter

open access: yesNext Energy
High-voltage power supplies are so important in today's world. A power supply's critical characteristics are efficiency and reliable performance in short-circuit conditions.
Alireza Eskandari   +2 more
doaj   +1 more source

Soft Switching Full-Bridge PWM DC/DC Converter Using Secondary Snubber [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2009
A novel full-bridge PWM DC/DCconverter with controlled secondary side rectifier usingsecondary snubber is presented in this paper.Limitation of the circulating current as well as softswitching for all power switches of the inverter isachieved for full ...
Jaroslav Dudrik   +4 more
doaj  

Vanadium redox flow batteries: Potentials and challenges of an emerging storage technology [PDF]

open access: yes, 2016
open4noIn this paper an overview of Vanadium Redox Flow Battery technologies, architectures, applications and power electronic interfaces is given.
Guarnieri, Massimo   +3 more
core   +1 more source

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio   +8 more
wiley   +1 more source

A New Topology of Bidirectional Buck-Boost dc/dc Converter with Capability of Soft Switching and input Current Ripple Cancellation

open access: yesIranian Journal of Electrical and Electronic Engineering, 2016
In this paper, a new bidirectional buck-boost dc-dc converter with capability of soft switching and zero input current ripple is proposed. The coupled inductor is used in the proposed converter to eliminate the input current ripple.
E. Babaei, Z. Saadatizadeh, S. Laali
doaj  

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