Results 41 to 50 of about 9,251,093 (173)
Advanced Energy Materials, EarlyView.Direct seawater electrolysis using anion exchange membranes is emerging as a promising route for sustainable hydrogen production. This review summarizes multiscale design strategies from seawater chemistry and OER–ClER selectivity to catalysts, membranes, MEAs, cells, stacks, and system integration, providing a roadmap toward selective, durable, and ...
Chiho Kim +7 more
wiley +1 more source
High Power AlN/GaN HEMTs with record power-added-efficiency >70% at 40 GHz
, 2020 International audienceWe report on breakthrough power-added-efficiency (PAE) Q-band performances using a vertically scaled AlN/GaN HEMT technology. The comparison between a 3 nm and 4 nm barrier thickness shows both superior performance and robustness ...
Etienne Okada +7 more
core +1 more source
Class-F Power Amplifier with Maximized PAE [PDF]
, 2010 Due to the rapid development of telecommunication devices, operating speeds are getting faster and more power is being consumed by those devices. Therefore, there is a big concern on how to prolong the battery life in order to fit consumers’ needs ...
Tsang, Kai Shing
core +1 more source
An Improved 4H-SiC MESFET with a Partially Low Doped Channel
Micromachines, 2019 An improved 4H-SiC metal semiconductor field effect transistor (MESFET) based on the double-recessed MESFET (DR-MESFET) for high power added efficiency (PAE) is designed and simulated in this paper and its mechanism is explored by co-simulation of ADS ...
Hujun Jia +7 more
doaj +1 more source
Smart Cities Leading the Green Transition: Linking Open Innovation and Entrepreneurial Dynamics
Business Strategy and the Environment, EarlyView.ABSTRACT Smart cities today are vibrant spaces where technology, collaboration, and sustainability come together to shape a better future. The green transition in cities is not just about building greener infrastructure or cutting emissions. It also changes how people, institutions, and businesses think and act.
Filippo Marchesani, Nabila Abid
wiley +1 more source
First RF Power Operation of AlN/GaN/AlN HEMTs With >3 A/mm and 3 W/mm at 10 GHz
IEEE Journal of the Electron Devices Society, 2021 The AlN/GaN/AlN heterostructure is attractive for microwave and millimeter-wave power devices due to its thin top barrier, tight carrier confinement, and improved breakdown voltage.
Austin Hickman +7 more
doaj +1 more source
Bio In, Garbage Out? A Review of Paradoxes and Trade‐Offs in the Circular Bioeconomy
Business Strategy and the Environment, EarlyView.ABSTRACT The circular bioeconomy (CBE) is increasingly presented as a promising way to advance corporate environmental sustainability by combining the use of renewable, bio‐based resources with circular economy principles of resource efficiency and lifecycle management.
Negalegn Alemu Bekele +2 more
wiley +1 more source
High Efficient CMOS Class-E Power Amplifier with a New Output Power Control Scheme [PDF]
Journal of Electrical and Electronics Engineering, 2013 This paper presents the design of a novel RF power amplifier (PA) with a new output power control scheme suitable for RF-ICs and portable systems. Employing a class-E amplifier as a drivertogether with soft-switching property of the main power stage ...
MESHKIN Reza +3 more
doaj
Advances in conjugated porous polymers via high internal phase emulsion templating
Polymer International, EarlyView.This mini‐review highlights the design, synthesis and potential applications of π‐conjugated polyHIPEs, emphasizing their unique hierarchical structure and tunable properties. The work outlines innovative synthetic strategies and explores their promising roles in photocatalysis and environmental remediation, paving the way for future advancements in ...
Julie‐Lisa Malaval +4 more
wiley +1 more source
28 GHz Doherty Power Amplifier in CMOS SOI With 28% Back-Off PAE
, 2018 A single-stage, symmetric Doherty power amplifier (PA) in 45 nm CMOS silicon on insulator at 28 GHz is presented. The PA achieves a saturated output power of 22.4 dBm, a peak power added efficiency (PAE) of 40%, and a 6 dB backoff PAE of 28%.
Mustafa Ozen +8 more
core +1 more source