Results 151 to 160 of about 28,422 (241)

Research Progress on Application of Novel Low GWP Refrigerants in Temperature Range from −100 ℃ to 200 ℃

Zhileng xuebao
A refrigerant is an essential working fluid in a vapor-compression refrigeration cycle. Hydrofluorocarbons are currently used as refrigerants in refrigeration, air-conditioning, and heat pump systems and are potent greenhouse gases.
Zhang Di, Guo Zhikai, Yu Wanjin, Lu Peng, Liu Yaoyao, Liu Wucan, Zhang Jianjun   +6 more
doaj   +2 more sources

Atomically Dispersed Cobalt on Ionic Carbon Nitrides for Selective and Efficient Nitrate Electroreduction to Ammonia

Angewandte Chemie, EarlyView.
By exploiting the structural benefits of PHI, we synthesized CoPHI with atomically dispersed cobalt sites at high density. This architecture enables efficient nitrate ion adsorption, promotes water dissociation, and enhances *H generation on the catalyst surface, thereby significantly improving electrochemical nitrate reduction performance.
Nana Gao, Minjuan Guo, Haijian Tong, Guoyu Hou, Jingwen Ba, Xiaoyu Zhang, Ruixin Zhang, Hui Zhang, Xianwei Fu, Leonardo Cancellara, Nadezda V. Tarakina, Yu Zhang, Tianxi Liu, Christian Mark Pelicano, Zhihong Tian   +14 more
wiley   +2 more sources

Flexible Memory: Progress, Challenges, and Opportunities

Advanced Intelligent Discovery, EarlyView.
Flexible memory technology is crucial for flexible electronics integration. This review covers its historical evolution, evaluates rigid systems, proposes a flexible memory framework based on multiple mechanisms, stresses material design's role, presents a coupling model for performance optimization, and points out future directions.
Ruizhi Yuan, Sen Chen, Minghui Guo, Ziliang Cui, Yujie Du, Jing Liu   +5 more
wiley   +1 more source

A Convenient, Safe, and Atom‐Economical Route to a Large Portfolio of Grubbs‐Type Catalysts for Olefin Metathesis via Four‐Coordinate Ruthenium Alkylidynes

Angewandte Chemie, EarlyView.
It may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Mingxu Cui, Alois Fürstner
wiley   +2 more sources

Rising Air-Conditioning Use Intensifies Global Warming. [PDF]

Nat Commun
Zhang H, Shan Y, Li R, Xue R, Ma J, Kikstra J, Shi Z, Wang Z, Zhang B, Wang B, Fang S, Yang F, Hubacek K.   +12 more
europepmc   +1 more source

Interactive Prompt‐Guided Robotic Grasping for Arbitrary Objects Based on Promptable Segment Anything Model and Force‐Closure Analysis

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A laser pointer‐guided robotic grasping method for arbitrary objects based on promptable segment anything model and force‐closure analysis is presented. Grasp generation methods based on force‐closure analysis can calculate the optimal grasps for objects through their appearances. However, the limited visual perception ability makes robots difficult to
Yan Liu, Yaxin Liu, Ruiqing Han, Kai Zheng, Yufeng Yao, Ming Zhong   +5 more
wiley   +1 more source

Refrigeration down to 0.16 K using a frustrated magnet Gd₂B₂MoO₉. [PDF]

Nat Commun
Zhang Y, Na Y, Liu X, Xiang J, Chen F, Li HF, Sun P, Zhou S, Zhang X, Li L.   +9 more
europepmc   +1 more source

Molecular Origin of Interfacial Anomalies in Azeotropic Refrigerant Mixtures. [PDF]

J Phys Chem C Nanomater Interfaces
Alkhatib III, Albà CG, Li Y, Stephan S, Llovell F, Vega LF.   +5 more
europepmc   +1 more source

Wear of Rolling Bearing Materials with Refrigerant Lubrication [PDF]

, 2008
Hadfield, Mark, Khan, Zulfiqar Ahmad
core  

Krypton based adsorption type cryogenic refrigerator [PDF]

Krypton and monolithic porous carbon such as Saran carbon are used respectively as the sorbate and sorbent of an absorption type refrigerator to improve refrigeration efficiency and operational ...
Jones, Jack A., Schember, Helene
core   +1 more source