Results 141 to 150 of about 1,055,212 (336)

High‐Performing Perovskite/Ruddlesden‐Popper Fuel Electrode for High‐Temperature Steam Electrolysis

Advanced Energy Materials, EarlyView.
By combining perovskite and Ruddlesden‐Popper phases, a Ni‐free fuel electrode with exceptional electrocatalytic activity and ionic conductivity is developed. This approach minimizes polarization resistance, achieving 0.053 Ω cm2 at 800 °C and 1.084 W cm−2 power density.
Yousef Alizad Farzin, Mohamad Khoshkalam, Siyuan Guo, Wolfgang Menesklou, Philipp Röse, André Weber   +5 more
wiley   +1 more source

Observations of minor planet 1908 DT [PDF]

, 1908
P. H. Cowell
openalex   +1 more source

Inert Copper Incorporation Enables the High Activity and Durability of NiW Electrocatalyst for Alkaline Hydrogen Oxidation Reaction

Advanced Energy Materials, EarlyView.
Cu incorporation further refined the binding strength for intermediates (H* and OH*). Therefore, the resulting Cui‐NiW exhibited outstanding HOR activity, yielding a peak power density of 340 mW cm−2 in a noble metal‐free fuel cell. Moreover, the alloy demonstrated robust durability with only a 5.7% current drop after 10000 cycles.
Guimei Liu, Yushen Liu, Xiaoyi Qiu, Bingxing Zhang, Juhee Jang, Yingdan Cui, Fei Xiao, Qinglan Zhao, Wenjun Wang, Yoonseob KIM, Wei Xing, Minhua Shao   +11 more
wiley   +1 more source

Catastrophic Failure Analysis of a Wind Turbine Gearbox by the Finite Element Method and Fracture Analysis

Designs
The wind turbine gearbox, used as a multiplier, is one of the main components directly related to a wind turbine’s efficiency and lifespan. Therefore, strict control of the gearbox and its manufacturing processes and even minor improvements in this ...
Jairo Aparecido Martins, Estaner Claro Romão   +1 more
doaj   +1 more source

Software Development of High-Precision Ephemerides of Solar System [PDF]

Journal of Astronomy and Space Sciences, 1995
We solved n-body problem about 9 plants, moon, and 4 minor planets with relativistic effect related to the basic equation of motion of the solar system. Perturbations including figure potential of the earth and the moon and solid earth tidal effect were ...
Jong-Seob Shin, Young-Shoek Ahn, Pil-Ho Park, Eun-Kwang Park, Jong-Uk Park   +4 more
doaj  

Note on the Discovery of Minor Planet (131) [PDF]

, 1873
E. H. W. Dunkin
openalex   +1 more source

Boon and Bane of Local Solid State Chemistry on the Performance of LSM‐Based Solid Oxide Electrolysis Cells

Advanced Energy Materials, EarlyView.
Cation diffusion causes an increase in the catalytically active MIEC region in solid oxide cells. Simultaneously, it leads to the additional formation and growth of secondary structures in the electrolyte, which reduces the oxygen diffusion. Abstract High‐temperature solid oxide cells are highly efficient energy converters.
Hanna Türk, Xuan Quy Tran, Patricia König, Adnan Hammud, Vaibhav Vibhu, Franz‐Philipp Schmidt, Dirk Berger, Sören Selve, Vladimir Roddatis, Daniel Abou‐Ras, Frank Girgsdies, Yu‐Te Chan, Thomas Götsch, Hebatallah Ali, Izaak C. Vinke, L.G.J (Bert) de Haart, Michael Lehmann, Axel Knop‐Gericke, Karsten Reuter, Rüdiger‐A. Eichel, Christoph Scheurer, Thomas Lunkenbein   +21 more
wiley   +1 more source

Sustainable Recovery and Reuse of Hard Carbon From Scrap and End‐of‐Life Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
As sodium‐ion battery (SIB) technology advances, sustainable end‐of‐life recycling is crucial. This study presents a direct recycling method for hard carbon (HC) using low‐temperature binder negation at 300 °C under nitrogen. Retaining structural integrity, recycled HC achieves 86–89% capacity retention over 200 cycles.
Bowen Liu, Tengfei Song, Lin Chen, Ashwin T. Shekhar, Marta Mirolo, Valentin Vinci, Jakub Drnec, Joel Cornelio, Dongrui Xie, Elizabeth H. Driscoll, Peter R. Slater, Emma Kendrick   +11 more
wiley   +1 more source

An Updated Review of the Marine Ornamental Fish Trade in the European Union

Animals
Wild-caught fish from coral reefs, one of the most threatened ecosystems on the planet, continue to supply the marine aquarium trade. Despite customs and veterinary checks during imports, comprehensive data on this global industry remain scarce.
Monica Virginia Biondo, Rainer Patrick Burki, Francisco Aguayo, Ricardo Calado   +3 more
doaj   +1 more source

Avoiding resonance capture in multi-planet extrasolar systems [PDF]

arXiv, 2017
A commonly noted feature of the population of multi-planet extrasolar systems is the rarity of planet pairs in low-order mean-motion resonances. We revisit the physics of resonance capture via convergent disk-driven migration. We point out that for planet spacings typical of stable configurations for Kepler systems, the planets can routinely maintain a
arxiv