Results 121 to 130 of about 571,375 (356)
High Fidelity Waveguides Through Vitreous Media Recomposition for Next Generation Photonic Devices
Advanced Optical Materials, EarlyView.A newly designed aluminosilicate glass enables the fabrication of femtosecond laser‐written optical waveguides with ultra‐low propagation losses of −0.020 dB cm−1 at 1310 nm and −0.037 dB cm−1 at 1550 nm. Raman, Brillouin, and electron microscopy analyses reveal the mechanisms behind refractive index modifications, highlighting the role of glass ...
T Toney Fernandez +9 more
wiley +1 more source
Crude Oil Volatility: Hedgers or Investors [PDF]
We evaluate differential effects of the trading activity of two classes of traders: hedgers and general investors, on the volatility of the NYMEX crude oil futures returns.
George Milunovich, Ronald Ripple
core
The Importance of Metal Ion Impurity Bands in the Photoluminescence of Halide Double Perovskites
Advanced Optical Materials, EarlyView.Many publications have associated emission spectral features of double perovskite halides in the region at 460–470 nm with “pristine” materials. This leads to not only false observations but also incorrect conclusions concerning the transformation of dark into bright excitons or boosting self‐trapped exciton emission.
Hei‐Yui Kai +4 more
wiley +1 more source
Crude oil spilled water treatment with Vetiveria zizanioides in floating wetland
Egyptian Journal of Aquatic Research, 2017 Floating wetlands on a container (25 L) using Vetiveria zizanioides (L) Nash was applied to remediate crude oil spill in water for four weeks. Three plants (height 10 cm) were inserted in a pot containing rockwool, floated on crude oil spiked water ...
Hefni Effendi +2 more
doaj
A segmented capacitance tomography for visualizing material distributions in pipeline conveying crude palm oil [PDF]
, 2012 A segmented electrical capacitance tomography (ECT) imager for palm oil process monitoring system is constructed and presented in this work.The goal of this study is to use the process monitoring system as an instrument to upkeep the local and ...
Mohamad, Elmy Johana
core
Advanced Optical Materials, EarlyView.ZnGa2O4:Cr3+ nanoparticles with persistent luminescence are synthesized and optimized for labeling microplastics via cryomilling. The solvothermal method provides superior optical properties, enabling background‐free imaging. These luminescent particles are successfully used to trace microplastic uptake and distribution in Daphnia magna, offering a ...
Adrian Drozdowski +4 more
wiley +1 more source
Isolation and identification of an ester from a crude oil [PDF]
, 1957 Harry F. Phillips, Irving A. Breger
openalex +1 more source
Gasoline and crude oil prices: why the asymmetry? [PDF]
Many consumers complain that gasoline and crude oil prices have an asymmetric relationship in which gasoline prices raise more quickly when crude oil prices are rising than they fall when crude oil prices are falling.
Mine K. Yücel, Stephen P. A. Brown
core
Advanced Photonics Research, EarlyView.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
An empirical analysis of the relationships between crude oil, gold and stock markets [PDF]
arXiv, 2015 This paper analyzes the direction of the causality between crude oil, gold and stock markets for the largest economy in the world with respect to such markets, the US. To do so, we apply non-linear Granger causality tests. We find a nonlinear causal relationship among the three markets considered, with the causality going in all directions, when the ...
arxiv