Results 141 to 150 of about 805,165 (307)

Prediction of crude oil prices in COVID-19 outbreak using real data. [PDF]

open access: yesChaos Solitons Fractals, 2022
Öztunç Kaymak Ö, Kaymak Y.
europepmc   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

Crude Oil Prices and Stock Markets in Major Oil Exporting Countries: Evidence on Decoupling Feature [PDF]

open access: yes
This paper investigates common cyclical features between crude oil market and stock markets in major oil exporting countries including Saudi Arabia, UAE, and Kuwait.
Onour, Ibrahim
core   +1 more source

Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals

open access: yesAdvanced Functional Materials, EarlyView.
Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser   +6 more
wiley   +1 more source

Low Oil Prices

open access: yes, 2015
Oil prices on global markets have plunged from United States (U.S.) $115 per barrel in mid-June of 2014 to U.S. $48 at end-January 2015, while other fuel prices have continued the slow downward trend of recent years.
Boratynski, Jakub, Kasek, Leszek
openaire   +1 more source

Fabrication of Pyridinic Nitrogen‐Functionalized Carbon Cloth for High‐Performance Iron‐Chromium Flow Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The carbon cloth electrode with targeted pyridinic nitrogen doping, achieved via urea pyrolysis, effectively modulates the adsorption of Cr(II) species and enhances electron transfer, leading to significantly improved kinetics of the Cr(II)/Cr(III) reaction. The material demonstrates a high discharge capacity of 689.3 mAh and an energy efficiency of 72.
Jinfeng Yi   +9 more
wiley   +1 more source

Comparing the impact of food and energy price shocks on consumers : a social accounting matrix analysis for Ghana [PDF]

open access: yes
Many countries have been affected by food and oil price shocks. Rising energy costs have manifested themselves through higher prices of gas at the pump and through price increases for many other goods such as kerosene and transport. But in some countries
Parra, Juan Carlos, Wodon, Quentin
core  

Polymer Infiltration Into SURMOF Channels Enables Hydrophobic and Solid‐Like Slippery Functional Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
We report a polymer‐chain insertion strategy to fabricate pore‐threaded MOF thin films with precisely tuned surface chemistry and wettability. Grafting n‐alkane chains into the pillared layer Cu2(bdc)2(dabco) MOF thin film's vertical nanochannels enhances water stability, and induces hydrophobicity and lubricant‐free, solid‐like slippery behavior ...
Angana Borbora   +4 more
wiley   +1 more source

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