Results 121 to 130 of about 41,579 (296)

Interfacial Fluorinated Ion Crowding Enables Reversible Zinc Metal Batteries

Angewandte Chemie, EarlyView.
Unlike conventional single‐anion electrolytes with limited interfacial regulation, interfacial F‐ion crowding enables dense occupation of the inner Helmholtz plane through cooperative fluorinated anions, thereby generating a fluorine‐rich interface that excludes water, homogenizes Zn2+ nucleation, promotes Zn (100)‐oriented deposition, and enables ...
Xinyu Zhang, Jitao Shang, Ruwei Chen, Jianrui Feng, Hang Yang, Jingyi Wang, Fei Guo, Shuhui Li, Zijuan Du, Peie Jiang, Xiaoxia Guo, Wei Zhang, Jie Chen, Hongzhen He, Xuan Gao, Zhenjing Jiang, Bing Wang, Yuhang Dai, Guanjie He   +18 more
wiley   +2 more sources

Genèse et évolution des silicates de cuivre dans le gisement de Mindouli au Congo. / Genesis and evolution of copper silicates in the ore deposit of Mindouli, Congo

, 1988
Genesis and evolution of copper silicates in the ore deposit of Mindouli, Congo The weathering processes which affect the sulfide mineralization of Mindouli (Congo) leads to the individualization of various secondary products : carbonates, silicates and ...
Jean-Mathias Koud, Koud, Jean-Mathias
core   +1 more source

How small changes to methylated piperidinium cations impact the synthesis of zeolite SSZ‐39

AIChE Journal, EarlyView.
Abstract Here we report a synthesis study of SSZ‐39 with four different organic structure directing agents (OSDA). The goal was to determine how subtle changes to the OSDA architecture impact crystallization kinetics, material composition, and other properties.
Onyinyechukwu Ukagha, Daniel F. Shantz
wiley   +1 more source

Speciation‐Controlled C–F Bond Functionalization Enabled by Zwitterionic Pnictinidenes

Angewandte Chemie, EarlyView.
Zwitterionic pnictinidenes turn C–F activation into C–X bond construction, enabling broad defluorinative functionalization of polyfluoro(hetero)arenes under mild conditions. Rather than following a metallomimetic Sb(I)/Sb(III) redox turnover, catalysis is redirected by ligand scrambling into a redox‐neutral manifold, revealing catalyst speciation as a ...
Irene Sánchez‐Sordo, Sergio Fernandez, Selwin Fernando, Diego M. Andrada, Oriol Planas   +4 more
wiley   +2 more sources

The Detection of Crystalline Silicates in Ultraluminous Infrared Galaxies

, 2006
International audienceSilicates are an important component of interstellar dust, and the structure of these grains (amorphous or crystalline) is sensitive to the local physical conditions. We have studied the infrared spectra of a sample of ultraluminous
Tielens, A., Houck, J. R., Sargent, B., Cami, J., Charmandaris, Vassilis, Soifer, B. T., Sloan, G. C., Spoon, Henrik W. W., Armus, Lee   +8 more
core   +1 more source

Computer Vision Pipeline for Image Analysis for Freeze‐Fracture Electron Microscopy: Rosette Cellulose Synthase Complexes Case

Advanced Intelligent Discovery, EarlyView.
This paper presents a computer vision (deep learning) pipeline integrating YOLOv8 and YOLOv9 for automated detection, segmentation, and analysis of rosette cellulose synthase complexes in freeze‐fracture electron microscopy images. The study explores curated dataset expansion for model improvement and highlights pipeline accuracy, speed ...
Siri Mudunuri, Leala Carbonneau, Eric M. Roberts, Alison W. Roberts, Candace H. Haigler, Alexey V. Gulyuk, Yaroslava G. Yingling   +6 more
wiley   +1 more source

Deprotonation and Alkylation of Weakly Acidic C(sp3)─H Bonds Through In Situ Generation of a Strong Hydride Base From 1,1,3,3‐Tetramethyldisiloxane and Potassium tert‐Butoxide

Angewandte Chemie, EarlyView.
The use of 1,1,3,3‐tetramethyldisiloxane (TMDSO) and potassium tert‐butoxide enables direct alkylation of weakly acidic carbon–hydrogen bonds with alkyl halides. Experimental and computational studies support the formation of a substrate‐associated hydride‐like base, providing a single‐step alternative to the classical deprotonation and electrophile ...
Piers St. Onge, Brandon White, Han Yao, Travis Dudding, Stephen G. Newman   +4 more
wiley   +2 more sources

Autonomous X‐Ray Fluorescence Mapping for Nanoscale Chemical Speciation of Fine Particulate Matter

Advanced Intelligent Discovery, EarlyView.
We present X‐AutoMap, an autonomous X‐ray fluorescence mapping framework that integrates real‐time analysis with rule‐based computer vision to selectively target chemically relevant regions. By avoiding background‐dominated areas, the method reduces acquisition time by fourfold while enabling accurate particle‐level speciation.
Carlos Deleon, Dmitri Gavrilov, Peggy O’Day, Ajith Pattammattel   +3 more
wiley   +1 more source

Hydration Behavior of Tricalcium Silicate in Seawater Relevant Salt Systems: A Hybrid Study with the Aid of Machine Learning

Advanced Intelligent Discovery, EarlyView.
The hydration behavior of C3S in seawater‐relevant solutions is studied based on experiments, boundary nucleation and growth (BNG) modeling, and machine learning. The main ions included in seawater modify hydration mechanisms, with MgCl2 showing the strongest acceleration effect at the same concentration.
Yanjie Sun, Chen Zhang, Ting Zhang, Mengze Hong, Peiliang Shen, Chi Sun Poon, Gang Li   +6 more
wiley   +1 more source

Ac‐SDKP modulates apoptosis via HSP27 and the FAS/FASL and mitochondrial axes

Animal Models and Experimental Medicine, EarlyView.
Schematic diagram of Ac‐SDKP regulating the FAS/FASL and mitochondrial apoptosis pathways via HSP27. Ac‐SDKP inhibits HSP27 expression, activates the FAS/FASL pathway and Caspase‐3 signaling, increases Caspase‐8 and Caspase‐3 expression, and induces cell apoptosis.
Wenxin Guo, Jinyin Yan, Wenli Li, Jin Wang, Lu Liu, Chengmei Zhang, Wei Cao, Shanshan Yao, Haibo Gong, Yi He, Zihan Zhou, Siyan Chen, Li Feng, Haijing Deng   +13 more
wiley   +1 more source