Results 111 to 120 of about 705,130 (292)

65% Efficient Multijunction Photovoltaic Laser Power Converters Operating over 150 W/cm²

Photonics
Multijunction laser power converters are demonstrated for the first time with high efficiencies for average optical irradiances exceeding 150 W/cm2. The GaAs-based photovoltaic power converting III-V heterostructures are designed with six GaAs subcells ...
Simon Fafard, Denis Masson
doaj   +1 more source

Simplified Small‐Signal Modeling Method for Non‐Isolated High Step‐Up Converters

International Journal of Circuit Theory and Applications, EarlyView.
A generalized small‐signal modeling methodology for a family of non‐isolated high step‐up DC‐DC converters is proposed. ABSTRACT This work presents a generalized small‐signal modeling methodology for a family of DC–DC converters based on the four‐state switching cell with a wide conversion range (WCR‐4SSC) operating in continuous conduction mode (CCM).
Samuel Antonio Macedo de Oliveira, Pedro Herysson Almeida da Silva, Fernando Lessa Tofoli, Dalton de Araújo Honório   +3 more
wiley   +1 more source

Demonstration of Power-over-Fiber with Watts of Output Power Capabilities over Kilometers or at Cryogenic Temperatures

Photonics
We demonstrate the use of laser diodes and multijunction photovoltaic power converters to efficiently deliver watts of electrical power for long-distance or cryogenic applications. Transmission through single-mode and multi-mode fibers at the wavelengths
Simon Fafard, Denis Masson
doaj   +1 more source

Galvanic isolation of bidirectional digital serial bus

, 2016
Galvanska izolacija je način električne izolacije funkcijski odvojenih cjelina nekog električnog sustava kako bi se spriječio značajan tok struje između tih cjelina.
Šimić, Marko
core  

Neonatal Exposure to Antibiotics Triggers Obesity in Adulthood by Permanent Microbiota Dysbiosis and Reduction of Adipose Regulatory T Cells

Barrier Immunity, EarlyView.
ABSTRACT Neonatal dysbiosis of the gut microbiota represents a critical environmental factor promoting obesity, but the underlying immunological mechanisms remain unknown. We show here that neonatal treatment of mice with broad‐spectrum antibiotics for the first 3 weeks of life (NeoATB) resulted in the development of obesity and metabolic abnormalities
Peter Zanvit, Junji Xu, Wenjing Yang, Nancy Guo, Tianming Yu, Xue Jiao, Michaela Prochazkova, Wenwen Jin, Na Liu, Sang‐A Park, Cheryl Chia, Daxesh P. Patel, Dunfang Zhang, Nathan Goldberg, Alexander Cain, Frank J. Gonzalez, Yasmine Belkaid, Yingzi Cong, WanJun Chen   +18 more
wiley   +1 more source

Digital galvanic isolation circuit [PDF]

Nanoindustry Russia, 2016
A. Lykyanov, R. Fedorov
openaire   +1 more source

A Review of Grain Boundaries: Formation Mechanism, Synthesis Strategy, and Application in Electrocatalysis

EcoEnergy, EarlyView.
An overview of grain boundary engineering in the field of electrocatalysis. ABSTRACT Key electrocatalytic reactions such as HER, OER, ORR, CO2RR, and NRR offer promising routes for storing renewable energy as chemical fuels. However, their widespread application is constrained due to the lack of highly active and stable catalysts. Grain boundaries (GBs)
Jingyu Gao, Fengming Zhou, Xinying Li, Ying Deng, Zexing Wu, Siyuan Feng, Yujing Zhu, Dan Zhang, Zhenyu Xiao   +8 more
wiley   +1 more source

Cooling Fiber Laser Power Converter Systems by Immersion in Oil

Photonics
We demonstrate the use of Laser Power Converters (LPCs) driven by fiber laser light while immersed in transformer oil for heat management purposes. Reliability tests performed via extended continuous operation using 6–7 W of input power from 808 nm and ...
Denis Masson, Simon Fafard
doaj   +1 more source

Galvanic corrosion

, 2001
xi.;ill.; 142 hal.; 30 ...
Francis Roger
core  

Low‐Dimensional Materials and Van Der Waals Heterostructures for Energy Application: A Comprehensive Review

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Low‐dimensional materials (0D, 1D, and 2D) exhibit unique electronic and physicochemical properties, enabling advanced nanoelectronic and optoelectronic devices. Mixed‐dimensional heterostructures combine these materials to enhance functionality.
Qaisar Alam, Sajjad Ali, Pir Muhammad Ismail, ABM Sharif Hossain   +3 more
wiley   +1 more source