Results 211 to 220 of about 1,060,031 (365)

A Digital High-Definition Imaging System for Spectral Studies of Extended Planetary Atmospheres. I. Initial Results in White Light Showing Features on the Hemisphere of Mercury Unimaged by [ITAL]MARINER 10[/ITAL][ITAL]Mariner 10[/ITAL] [PDF]

, 2000
Jeffrey Baumgardner, M. Mendillo, J. K. Wilson   +2 more
openalex   +1 more source

Ultra–Efficient and Selective Gold Separation via Second–Sphere Coordination of Aurous Dihalide Using a Nonporous Amorphous Superadsorbent

Advanced Science, EarlyView.
A covalent organic superphane cage serves as a nonporous amorphous superadsorbent for highly efficient and selective gold separation. This material uniquely captures linear aurous dihalide ions, achieving exceptional uptake capacity and selectivity, and proving effective even in seawater, offering a scalable, eco–friendly solution to gold scarcity ...
Wei Zhou, Xiao Cai, Yiyao Xu, Min Zhou, Jialian Li, Qiang Liu, Qing He   +6 more
wiley   +1 more source

Overcoming Extreme Ammonia Inhibition on Methanogenesis by Artificially Constructing a Synergistically Community with Acidogenic Bacteria and Hydrogenotrophic Archaea

Advanced Science, EarlyView.
This study proposes a two‐step biological strategy to synergistically enhance the three stages of anaerobic digestion, ultimately eliminating the extreme ammonia inhibition and breaking through the inefficiency bottleneck of conventional biotechnology.
Heng Wu, Huaiwen Zhang, Taili Dong, Zhenyu Li, Xiaohui Guo, Heyu Chen, Yiqing Yao   +6 more
wiley   +1 more source

Modularization and Serialization Design Method of Yaw Planetary Reducer

Jixie chuandong, 2016
The modularization and serialization design idea is introduced into the method to research the design method of yaw reducer of wind power transmission system,a new configuration programs- NGW compound NGWN（ Ⅰ） is proposed,serialization basic planetary ...
Dong Huimin, Xu Wenhui, Zhang Xinhua, Wang Delun, Bao Yanqiu, Qiu Jun   +5 more
doaj  

Stability Analysis of the Planetary System Orbiting υ Andromedae [PDF]

, 2000
Eugenio J. Rivera, Jack J. Lissauer
openalex   +1 more source

A Soft‐Soft Contact Triboelectric Nanogenerator with a Ternary Four‐Phase Structure for Self‐Powered High‐Efficiency Dust Removal on Mars

Advanced Science, EarlyView.
The frequent dust storms and charged dust particles on Mars pose significant challenges to the power generation efficiency and service life of solar panels during exploration missions. This paper proposes a novel wind‐driven ternary four‐phase soft‐soft contact triboelectric nanogenerator (FPS‐TENG) for dust removal.
Fei Yang, Zheping Wang, Boyi Xu, Yifan Lu, Xuyan Hou, Jinsui Xu, Zhijie Xie   +6 more
wiley   +1 more source

Selective Synthesis of Oligosaccharides by Mechanochemical Hydrolysis of Chitin over a Carbon‐Based Catalyst

Angewandte Chemie, Volume 135, Issue 3, January 16, 2023., 2023
An activated carbon catalyst having weak acid sites hydrolyzes chitin to chitin‐oligosaccharides selectively in the presence of mechanical milling. Our system preferentially cleaves large molecules over small oligomers, thus maximizing the selectivity and yield of chitin‐oligosaccharides.
Hirokazu Kobayashi, Yusuke Suzuki, Takuya Sagawa, Makoto Saito, Atsushi Fukuoka   +4 more
wiley   +2 more sources

Analysis of the Dynamic Characteristic of Wind Turbine Planetary Gear System with Flexible Support

Jixie chuandong, 2016
As the wind turbine gearbox mounted on a flexible support tower,the wind turbine tower will be bent and wiggled under the complex working conditions,and it will serious influence on the dynamic characteristic of the wind turbine gear transmission system.
Jiang Gaige, Yin Yufeng, Si Shixiong, Gao Chongren   +3 more
doaj  

Determination of habitable zones in extrasolar planetary systems: Where are Gaia's sisters? [PDF]

, 2000
S. Franck, Werner von Bloh, C. Bounama, M. Steffen, D. Schönberner, Hans Joachim Schellnhuber   +5 more
openalex   +1 more source

Twin Toughening‐Driven Martensitic Transformation Strategy Synergistic Improvement for Plasticity‐Thermal Shock Resistance of (Hf─Zr─Ti)C Ceramic Coating in Severe Thermal Environments

Advanced Science, EarlyView.
A “ceramic self‐toughening strategy” is introduced for enhancing the plasticity and thermal shock resistance of (Hf─Zr─Ti)C coatings through twin toughening‐driven martensitic transformations in oxide scales. It facilitated the formation of stable, dense, and high‐toughness oxide scales after repeat ablation, and endowed prepared coatings with superior
Jiachen Li, Yulei Zhang, Yanqin Fu, Tao Li, Jian Zhang, Deyu Yang, Lingfei Cao, Fanyu Lu, Junhao Zhao, Junshuai Lv, Hejun Li   +10 more
wiley   +1 more source