Results 31 to 40 of about 67,012 (290)

Volatility of Oil Prices

open access: yesIMF Working Papers, 1996
This paper examines the behavior of crude oil prices since 1980, and in particular the volatility of these prices. The empirical analysis covers “spot” prices for one of the key internationally traded crudes, namely Dated Brent Blend. A GARCH (generalized autoregressive conditional heteroscedastic) model, which allows the conditional variance to be ...
openaire   +5 more sources

Volatility forecasting for crude oil futures [PDF]

open access: yesApplied Economics Letters, 2010
This paper studies the forecasting properties of linear GARCH models for closing-day futures prices on crude oil, first position, traded in the New York Mercantile Exchange from January 1995 to November 2005. In order to account for fat tails in the empirical distribution of the series, we compare models based on the normal, Student’s t and ...
MARZO, MASSIMILIANO, ZAGAGLIA, PAOLO
openaire   +5 more sources

KARAKTERISTIK MIKROKAPSUL MINYAK ATSIRI LENGKUAS DENGAN MALTODEKSTRIN SEBAGAI ENKAPSULAN [Characteristics of Galangal Essential Oil Microencapsulation Using Maltodextrin Encapsulant]

open access: yesJurnal Teknologi dan Industri Pangan, 2013
Research on encapsulation of galangal (Alpinia galanga) essential oil using maltodextrin as a coating substance was aimed to determine the ideal proportion between the essential oil and coating material to produce microcapsules, and to determine its ...
Supriyadi*, A. Sakha Rujita
doaj   +1 more source

THE VOLATILE OILS OF THE GENUS SOLIDAGO. [PDF]

open access: yesJournal of the American Chemical Society, 1914
n ...
Miller, Emerson R., Eskew, Milner H.
openaire   +1 more source

Efek Antijamur Minyak Atsiri Jahe Merah (Zingiber officinale Var. Rubrum) terhadap Candida albicans

open access: yesJournal of Dentistry Indonesia, 2015
The prevalence of Candida albicans infections is increasing in the society. Therefore, an effective and affordable antifungal drug with minimal side effect is needed.
Hermina Karuna Atmaja   +2 more
doaj   +1 more source

Oil volatility, oil and gas firms and portfolio diversification [PDF]

open access: yesEnergy Economics, 2018
This paper investigates the volatility spillovers and co-movements among oil prices and stock prices of major oil and gas corporations over the period between 18th June 2001 and 1st February 2016. To do so, we use the spillover index approach by Diebold and Yilmaz (2009, 2012, 2014, 2015) and the dynamic correlation coefficient model of Engle (2002) so
Antonakakis, Nikolaos   +4 more
openaire   +4 more sources

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida   +16 more
wiley   +1 more source

Volatility persistence in crude oil markets [PDF]

open access: yesEnergy Policy, 2014
Financial market participants and policy-makers can benefit from a better understanding of how shocks can affect volatility over time. This study assesses the impact of structural changes and outliers on volatility persistence of three crude oil markets - Brent, West Texas Intermediate (WTI) and Organization of Petroleum Exporting Countries (OPEC ...
Charles, Amélie, Darné, Olivier
openaire   +5 more sources

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

open access: yesAdvanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing   +9 more
wiley   +1 more source

Evaluation of monthly changes in essential oil yield and components of cherry laurel (Prunus laurocerasus L.) leaf

open access: yesGrasas y Aceites
This research was carried out to examine the monthly changes in both the volatile oil content and volatile components of cherry laurel leaves by taking samples every month for 12 months in Turkey.
S. Akçura
doaj   +1 more source

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