Results 131 to 140 of about 1,063,077 (278)

Pulsation in Hot Main-Sequence Stars: Comparison of Observations with Models

Universe
The locations of hot pulsating variables in the H–R diagram are found using the effective temperatures derived from spectroscopic analysis and luminosities from Gaia parallaxes.
Luis A. Balona
doaj   +1 more source

Heterogenized Copper(II) Phenanthroline Catalysts for Electroreduction of CO2 to C2 Compounds: Substitution on the Ligand Causes Structural Changes to the Molecular Framework and Stability Enhancement

Advanced Materials, EarlyView.
Based on a previously reported binuclear Cu(II) phenanthroline catalyst, a structurally modified version with enhanced stability for electrochemical reduction of CO2 is developed. The second‐generation system allows for stable operation in an MEA electrolyzer with a Faradaic efficiency of >70% for C2 products at elevated current densities.
Na Liu, Trang Minh Pham, Yanan Han, Linfeng Yang, Olga S. Bokareva, Stephan Bartling, Armin Springer, Anke Spannenberg, Christoph Kubis, Jana Weiss, Dmitry E. Doronkin, Wen Ju, Robert Francke   +12 more
wiley   +1 more source

The Extent and Cause of the Pre–White Dwarf Instability Strip [PDF]

, 2000
M. S. O’Brien
openalex   +1 more source

Reassessing Electrolyte Design for Non‐Aqueous Magnesium Batteries: Atomistic Structures and Performance Optimization

Advanced Materials, EarlyView.
This review systematically examines recent advances in non‐aqueous electrolytes for rechargeable magnesium batteries, focusing on chlorine‐containing and chlorine‐free systems. It highlights the interdependent relationship between electrolyte compositions, atomistic structures, and electrochemical performance.
Hao Xu, Xiaoqian He, Yue Li, Quanquan Guo, Xinyu Sun, Xinlong Xie, Lingyue Liu, Richard M. Laine, Jianxin Zou, Xinliang Feng, Minghao Yu   +10 more
wiley   +1 more source

Mapping the ZZ Ceti Instability Strip: Discovery of Six New Pulsators [PDF]

, 2006
Alexandros Gianninas, P. Bergeron, G. Fontaine, Alexandros Gianninas, P. Bergeron, G. Fontaine   +5 more
openalex   +1 more source

An Extremely Hot Pulsating Prewhite Dwarf from OGLE

The Astronomical Journal
We show that the blue 18.3 minutes variable object discovered in the Galactic disk by the OGLE-III survey and named OGLE-GD-WD-0001 is a pulsating prewhite dwarf of PG 1159 spectral type.
Paweł Pietrukowicz, Klaus Werner, Mateusz J. Mróz, Milena Ratajczak   +3 more
doaj   +1 more source

Quantum Size Effect Synergizes Space‐Limited Domain Action for Advanced Aqueous Zinc‐Iodine Batteries

Advanced Materials, EarlyView.
A functionalized MOF, Al‐TCPP(Fe), featuring micropores and Fe‐N4 sites, acts as a superior iodine host for aqueous zinc‐iodine batteries. This dual‐function design synergistically confines polyiodides and catalyzes iodine redox through quantum‐size‐tuned Fe‐N4 sites.
Shibin Li, Yihang Nie, Yuao Wang, Guo Feng, Qingying Li, Qianyi Ma, Chengjiao Zhao, Yihan Xie, Mingliang Jin, Dan Luo, Xin Wang, Zhongwei Chen   +11 more
wiley   +1 more source

Deformation characteristics of overlying strata in room and pillar mined-out areas under coal pillar instability

Scientific Reports
Under the condition of small roof deformation before the occurrence of fractures and collapse in room and pillar mined-out areas caused by coal pillar instability, the surface deformation may be large, which threatens the safety of ground structures ...
Yaming Liu, Tianfeng Gu, Yanchao Wang, Wei Xiong, Xuanyu Yang   +4 more
doaj   +1 more source

Synergistic Coupling of Host and Electrolyte Achieving 1270 Wh L−1 in Anode‐Free Lithium Metal Batteries

Advanced Materials, EarlyView.
A synergistic combination of a highly reversible host and a commercially viable carbonate‐rich electrolyte enables simultaneous stabilization of both anode and cathode interfaces in anode‐free lithium metal batteries. This integrated strategy delivers exceptional reversibility and a record volumetric energy density of 1270 Wh L−1 (including package) in
Dong‐Yeob Han, Saehun Kim, Junsu Son, Sangwon Lee, Sungjin Cho, Donghyun Lee, Jiyoon Lee, Tae Kyung Lee, Nam‐Soon Choi, Soojin Park   +9 more
wiley   +1 more source

One new variable candidate and six nonvariable stars at the ZZ Ceti instability strip [PDF]

, 2019
Zs. Bognár, Csilla Kalup, Á. Sódor
openalex   +1 more source