Results 51 to 60 of about 10,922 (319)

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Power losses and reactive power in three-phase power supply system with symmetrical sinusoidal voltage source [PDF]

, 2014
Для симметричных трехфазных четырехпроводных систем электроснабжения получена зависимость между дополнительными потерями энергии и среднеквадратичным значением модуля вектора мгновенной реактивной мощности.
Жемеров, Георгий Георгиевич, Тугай, Дмитрий Васильевич   +1 more
core  

Different power supplies for different machines [PDF]

, 2006
Each time a new accelerator is built, the question of the right choice of technology for the power supplies (PS) is raised again. No specific advice can be given since the demands on the units as well as the available budget have a strong influence on ...
Eckoldt, H J
core   +1 more source

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Engineering Porous Hollow Metal‐Poly(Heptazine Imide) Spheres: An Optimized Synthetic Strategy for Controlling Surface, Morphology, and Properties

Advanced Functional Materials, EarlyView.
Hollow poly(heptazine imide) spheres are prepared through a novel approach that integrates hard templating with ionothermal synthesis. This method enables precise control over surface area, pore volume, hydrophilicity, light absorption, band position, and metal composition. These tunable properties facilitate the customized design of semiconductors for
Lingli Ni, Erik Troschke, Henrik Vorwerk, Shiva Shahbazi Avarvand, Andreas Stihl, Nadzeya Brezhneva, Marius Hermesdorf, Desirée Leistenschneider, Felix H. Schacher, Jacob Schneidewind, Martin Oschatz   +10 more
wiley   +1 more source

Cryo‐EM of Rationally Designed Photosystem I Nanoassembly on Graphene Validates Orientation‐Driven Enhancement of Photocatalytic Performance

Advanced Functional Materials, EarlyView.
The first cryo‐EM visualization and quantification of oriented Photosystem I (PSI) on single‐layer graphene is reported. Domain‐specific covalent anchoring of PSI, with the reducing side of the biophotocatalyst toward graphene, promotes three‐fold higher anodic photocurrent generation compared to a randomly physisorbed counterpart. This approach allows
Miriam Izzo, Margot Jacquet, Tomasz Góral, Marcin Strawski, Takayuki Fujiwara, Shin‐ya Miyagishima, Joanna Kargul   +6 more
wiley   +1 more source

Evolución y desarrollo de los dispositivos compensadores de potencia reactiva

Revista Científica de Ingeniería Energética, 2011
Desde el  propio surgimiento de los sistemas eléctricos de corriente alterna durante la segunda mitad delsiglo XIX, numerosos científicos advirtieron de los efectos nocivos del desfase de corriente y tensiónproducidos por la ...
Davel Borges Vasconcellos, Vicente León Martínez   +1 more
doaj  

Reactive Power Compensation Method Considering Minimum Effective Reactive Power Reserve

IOP Conference Series: Materials Science and Engineering, 2017
According to the calculation model of minimum generator reactive power reserve of power system voltage stability under the premise of the guarantee, the reactive power management system with reactive power compensation combined generator, the formation of a multi-objective optimization problem, propose a reactive power reserve is considered the minimum
Yiyu Gong, Kai Zhang, Zhang Pu, Xuenan Li, Xianghong Zuo, Jiao Zhen, Teng Sudan   +6 more
openaire   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

Advanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han, Kevin Cheng, Swathy Sampath Kumar, Anil Bollimunta, Elizabeth E. Torr, Juhwan Kim, Kyoungmin Kim, Hyungjun Choi, Seongkwon Hwang, Sarah Brodnick, David Cheng, Lindsay Gray, Yei Hwan Jung, William L. Murphy, Aaron J. Suminski, Jonathan J. Nassi, Justin C. Williams, Dong‐Wook Park   +17 more
wiley   +1 more source

Compensación de la potencia reactiva en sistemas de baja tensión mediante bancos de capacitores fijos, utilizando algoritmos genéticos; Reactive compensation in low voltaje power systems with fixed capaciyors banks using genetic algorithms

Revista Científica de Ingeniería Energética, 2011
Una óptima selección de estos, presupone tres aspectos: la selección de la capacidad de los bancos, el tipo de compensador a utilizar, así como la ubicación en el sistema eléctrico de baja tensión Existen ...
Davel Borges Vasconcellos, Ignacio Pérez Abril, Alfredo González Digón, Herschell Iglesias García   +3 more
doaj