Results 81 to 90 of about 530,026 (287)

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

An Isolated Active-Clamped Circuit Current-Fed Half-Bridge Converter

Eletrônica de Potência
This paper presents an isolated regenerative active-clamped circuit designed for the current-fed half-bridge (IRACCFHB) converter. Its primary function is to reduce high voltage spikes across the main switches caused by energy stored in the leakage ...
Glauco E. R da Silva, Carlos M. de O. Stein , Jean P. da Costa , Emerson G. Carati, Rafael Cardoso, Gustavo W. Denardin, Jhon B. B. Quispe   +6 more
doaj   +1 more source

The Anisotropic Adsorption of De Novo Allosteric Two‐Component Protein Fibers on Mica Surfaces

Advanced Functional Materials, EarlyView.
In this study, the interfacial behavior of de novo designed proteins that self‐assemble into tubular architectures with distinct morphologies — small (S), large (L), and helical (H) fibers — at the muscovite mica‐water interface is explored using in situ AFM. Abstract Protein adsorption at solid–liquid interfaces underlies many biomedical and materials
Chenyang Shi, Hao Shen, Yuna Bae, Jaeyoung Heo, Shuai Zhang, Lehan Yao, David Baker, James J De Yoreo   +7 more
wiley   +1 more source

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

Energies
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

Sneaking Operation Modes in Zero-Current-Switching Converter

The Open Electrical & Electronic Engineering Journal, 2015
This paper reports the occurrence of some abnormal operational modes in soft-switching converters. By constructing a Boolean matrix based on the states of the switching components, some unexpected topological states are identified. Consequently, these states excite the abnormal or sneaking operational modes as referred.
Qu Lili, Zhang Bo, Wallace K.S. Tang
openaire   +1 more source

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source

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

Advances 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

Energy 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, Majid Delshad, Mohammad Rouhollah Yazdani, Bahador Fani   +3 more
doaj   +1 more source

IGBT-SiC dual fed open end winding PMSM drive [PDF]

, 2017
This paper proposes a dual fed common dc link inverter Open End Winding-Permanent Magnet Synchronous Motor (OEW-PMSM) Drive. In order to increase the system efficiency a dual technology converter is used, with one inverter composed of standard IGBT ...
Cox, Tom, Formentini, Andrea, Lo Calzo, Giovanni, Rovere, Luca, Zanchetta, Pericle   +4 more
core   +1 more source

Dual‐Interface Engineering of the Source Electrode to Overcome the Intrinsic Injection‐Leakage Trade‐Off in Organic Schottky Barrier Transistors

Advanced Functional Materials, EarlyView.
A charge injection layer is introduced via RIE to decouple the dual functions of the source electrode: lowering contact resistance through doping to enhance charge injection, while SAM modification on the top surface minimizes leakage current. This strategy enables OSBTs to achieve a high on/off ratio with improved stability and performance.
Hye Ryun Sim, Sangjun Lee, Geon‐Hee Nam, Jieun Kwon, Junseo Kim, Syed Zahid Hassan, Dae Sung Chung   +6 more
wiley   +1 more source