Results 51 to 60 of about 953 (152)

Nonisolated High Step‐Up DC‐DC Ćuk Converter Based on Coupled Inductors

International Journal of Circuit Theory and Applications, Volume 54, Issue 2, Page 874-887, February 2026.
A nonisolated high step‐up DC‐DC Ćuk converter based on coupled inductors and voltage multiplier cell (VMCs) is proposed and thoroughly assessed. ABSTRACT This work presents a nonisolated high step‐up DC‐DC Ćuk converter, specifically designed for nanogrid applications.
Manuel de Oliveira Vasconcelos Júnior, Francilino Carneiro de Araújo, Antonio Alisson Alencar Freitas, Marcus Vinicius Silverio Costa, Fernando Lessa Tofoli, Fernando Luiz Marcelo Antunes, Edilson Mineiro Sá Jr., Kleber Cesar Alves de Souza   +7 more
wiley   +1 more source

FORMATION OF «FALSE ANNUAL RINGS» ON SCALE OF JUVENILE COHO SALMON ONCORHYNCHUS KISUTCH IN LAKE KURSIN (LOWER KAMCHATKA RIVER)

Известия ТИНРО, 2019
During spring-summer flood (in June-July). transit underyearling of coho salmon, having or having no scales, migrate to Lake Kursin at the lower Kamchatka River, where resident coho salmon never spawn.
V. F. Bugaev, D. P. Pogorelova
doaj   +1 more source

Transient Overvoltages in Onshore HVDC Cable Joints: Surge Reflections and the Influence of Grounding Configurations

High Voltage, Volume 11, Issue 1, Page 83-99, February 2026.
ABSTRACT This study examines transient overvoltage phenomena in 525 kV high‐voltage direct current (HVDC) onshore cable systems, with particular emphasis on the influence of grounding configurations in two joint types: straight‐through and screen‐separated.
Tanumay Karmokar, Roland Dongping Zhang, Mohamad Ghaffarian Niasar, Marjan Popov   +3 more
wiley   +1 more source

Nanocellulose–MOF‐Derived Carbon Hybrid Aerogels with Hierarchical Micro/Nanostructures for Solar‐Driven Water Evaporation

Advanced Science, Volume 13, Issue 1, 5 January 2026.
A biodegradable, cellulose‐based bilayer solar evaporator is fabricated entirely via aqueous, sequential ice‐templating. The hybrid structure combines vertically aligned cellulose nanofibers for rapid water transport with a metal‐orgnic framework (MOF)‐derived porous carbon layer decorated with plasmonic nanoparticles for enhanced photothermal ...
Suji Lee, Kangyun Lee, Youngho Jeon, Yuri Seo, Seohyun Park, Youngsang Ko, Jungmok You   +6 more
wiley   +1 more source

Highly thermostable and visibly transparent Cu-thin-film planar heaters

Applied Surface Science Advances
Transparent heaters (THs) are widely used in applications such as deicing, defogging, and thermal management, requiring high transparency, low sheet resistance and structural durability. This study investigates the design, fabrication, and performance of
Chankyoung Lee, Jaewoo Park, Dooho Choi
doaj   +1 more source

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

Energy Science &Engineering, Volume 14, Issue 1, Page 540-556, January 2026.
The proposed topology provides high voltage gain and enhanced efficiency at low duty cycles, thereby reducing conduction losses in the switches. Its interleaved structure ensures current sharing, while the switches experience both low voltage and low current stress, further decreasing conduction losses.
Mahdi Alizadeh, Majid Delshad, Mohammad Rouhollah Yazdani, Bahador Fani   +3 more
wiley   +1 more source

A Quasi-Resonant ZVZCS Phase-Shifted Full-Bridge Converter with an Active Clamp in the Secondary Side

Energies, 2018
A novel Pulse-Width-Modulation (PWM) quasi-resonant active-clamp phase-shifted full-bridge converter is presented and analyzed in this paper. In the proposed topology, an active-clamp switch and a clamp capacitor that resonates with the leakage ...
Duong Tran, Nam Vu, Woojin Choi
doaj   +1 more source

Energy Management of a Fuel Cell–Supercapacitor Hybrid System With Dedicated Charging Converter

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper proposes a coordinated energy management system (EMS) for a fuel cell–supercapacitor hybrid system interfaced through three isolated dual active bridge (DAB) converters. The proposed approach enhances system efficiency by reducing the number of power conversion stages and improving power flow coordination between the fuel cell and ...
Faheem Ijaz, Priya Singh Bhakar, Shamsodin Taheri, Edris Pouresmaeil   +3 more
wiley   +1 more source

Design, Modelling and Control of a MW‐level Hydrogen Converter for an Off‐Grid DC Hydrogen Production System

IET Power Electronics, Volume 19, Issue 1, January/December 2026.
This paper proposes a high‐power hydrogen converter specifically designed for megawatt‐level (MW‐scale) off‐grid hydrogen production systems powered by renewable energy sources. A two‐stage ISOP architecture is adopted to fulfill the demanding requirements of high voltage step‐up, high efficiency, low output ripple, and reliable power regulation.
Rui Zhou, Fei Xiao, Jilong Liu, Yufan Li, Shanxu Duan   +4 more
wiley   +1 more source

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

Advanced Materials, Volume 37, Issue 52, December 29, 2025.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis, Subhajit Dutta, Saqib Kamal, Sergio Gómez‐Graña, Isabel Pastoriza‐Santos, Stefan Wuttke, Lakshminarayana Polavarapu   +6 more
wiley   +1 more source