Results 121 to 130 of about 663,607 (251)

Impact of the COVID-19 pandemic on return and risk transmission between oil and precious metals: Evidence from DCC-GARCH model. [PDF]

Resour Policy, 2022
Yıldırım DÇ, Esen Ö, Ertuğrul HM.
europepmc   +1 more source

Diastereomeric Monomers Enable Anion‐Exchange Membranes With Controlled Local Polymer Backbone Flexibility and High Conductivity

Advanced Science, EarlyView.
Stereochemistry enables control of ion‐exchange membrane properties via local backbone flexibility without altering the polymer composition. Syn‐enriched membranes show higher water uptake and improved water‐electrolysis performance, whereas anti‐enriched membranes exhibit higher hydration efficiency and improved mechanical properties.
Si Chen, Xuchen Lyu, Triet Nguyen Dai Luong, Patric Jannasch   +3 more
wiley   +1 more source

Behavior of organic matter and gold under conditions of folding deformations

Руды и металлы
The article provides a brief overview of publications on natural organic matter (OM) and its transformation at various stages of the sedimentary rocks conversion.
Ganzha G. B., Arsentieva I. V.
doaj   +1 more source

Nonlinear examination of the 'Heat Wave' and 'Meteor Shower' effects between spot and futures markets of the precious metals. [PDF]

Empir Econ, 2022
Živkov D, Manić S, Pavkov I.
europepmc   +1 more source

Study on the thermodynamics and kinetics of the stripping of palladium from a typical palladium organic [PDF]

, 2005
Includes bibliographical references.The aim of this thesis was to investigate the thermodynamics and the kinetics of the stripping of palladium from a typical palladium organic.
Brits, Johannes Hendrik Wilhelmus Machiel
core  

Machine Learning–Guided Surface Strain Engineering in Connected Platinum–Nickel Nanoparticle Catalysts for Advanced Oxygen Reduction Performance

Advanced Science, EarlyView.
Machine learning‐guided strain engineering enables highly active, durable, support‐free Pt–Ni nanonetwork catalysts for the oxygen reduction reaction. Analysis of a Pt‐based catalyst dataset identifies surface compressive strain as an effective descriptor associated with enhanced activity and provided practical design guidelines.
Aparna Chitra Sudheer, Gopinathan M. Anilkumar, Hidenori Kuroki, Yuuki Sugawara, Takeo Yamaguchi   +4 more
wiley   +1 more source

COVID-19 Shock and the Time-Varying Volatility Spillovers Among the Energy and Precious Metals Markets: Evidence From A DCC-GARCH-CONNECTEDNESS Approach. [PDF]

Front Public Health, 2022
Tan X, Wang X, Ma S, Wang Z, Zhao Y, Xiang L.   +5 more
europepmc   +1 more source

The COVID-19 pandemic and speculation in energy, precious metals, and agricultural futures. [PDF]

J Behav Exp Finance, 2021
Sifat I, Ghafoor A, Ah Mand A.
europepmc   +1 more source

Architecture‐Engineered Semi‐Crystalline Microporous Polymer Membranes for Precise Molecular Separation

Advanced Science, EarlyView.
Guided by a Random Forest model, a π–π‐driven ordered stacking strategy deploys functionally distinct substructures to restrict chain segment motion and increase free volume, while preserving the intermolecular interactions that maintain structural integrity.
Zi‐Meng Xu, Hao Zhuo, Song‐Hui Zhi, Xiao‐Feng Zhong, Pan‐Pan Zhang, Si‐Yuan Yang, Wen‐Yong Yang, Guang‐Yong Shen, Ya‐Zhao Li, Yi Li, Ming Xue   +10 more
wiley   +1 more source

The practice of the zircon typomorphism studies using IR microscopy as applied to forecasting and prospecting for base and precious metals deposits

Руды и металлы
A potential effectiveness of IR microscopy in application to forecasting and prospecting for base and precious metals deposits is demonstrated on examples of studying zircon crystals collected at the Mechiveem area (Okhotsk-Chukotka volcanoplutonic belt),
Khachatryan G. K., Kryazhev S. G.
doaj   +1 more source