Results 71 to 80 of about 72,223 (314)

Chemical Composition, Antimicrobial and Antioxidant Activities of the Volatile Oil of Ganoderma pfeifferi Bres

open access: yesMedicines, 2016
In a first study of the volatile oil of the mushroom basidiomycete Ganoderma pfeifferi Bres., the chemical composition and antimicrobial and antioxidant activities of the oil were investigated. The volatile oil was obtained from the fresh fruiting bodies
Mohamed Al-Fatimi   +2 more
doaj   +1 more source

Econometric Model Using Arbitrage Pricing Theory and Quantile Regression to Estimate the Risk Factors Driving Crude Oil Returns [PDF]

open access: yesarXiv, 2023
This work adopts a novel approach to determine the risk and return of crude oil stocks by employing Arbitrage Pricing Theory (APT) and Quantile Regression (QR).The APT identifies the underlying risk factors likely to impact crude oil returns.Subsequently, QR estimates the relationship between the factors and the returns across different quantiles of ...
arxiv  

Oil and Methanol Price volatility [PDF]

open access: yesAustralian Journal of Business and Management Research, 2013
Crude oil as one of the main sources of energy is also the main source of income for members of OPEC. So, the volatility of crude oil price is one of the main economic variables in the world and analysis of the effect of its changes on key economic factors has been always considered as significant.
Esmaeil Naderi   +2 more
openaire   +1 more source

Spray‐Assisted Fabrication of Cellulose Photonic Pigments on Superhydrophobic Surfaces

open access: yesAdvanced Materials, EarlyView.
A method to directly produce structurally colored microparticles by drying cholesteric cellulose nanocrystal microdroplets on a superhydrophobic surface is reported. This approach has several key advantages that can unlock large‐scale fabrication of sustainable photonic pigments, including exploiting existing industrial techniques (e.g. aerosolization),
Jianing Song   +7 more
wiley   +1 more source

Electrospinning and Nanofiber Technology: Fundamentals, Innovations, and Applications

open access: yesAdvanced Materials, EarlyView.
This review explores electrospinning fundamentals, methods for synthesizing polymer, metal oxide, carbon, and composite nanofibers, and advancements in fiber architectures like porous, core–shell, and aligned structures. It highlights applications in functional membranes, sensors, energy systems, and catalyst design while addressing future ...
Yujang Cho   +5 more
wiley   +1 more source

In vitro and in silico evaluation of the antimicrobial potential of Celtis zenkeri roots volatile metabolites

open access: yesEclética Química
This study is aimed at investigating the volatile constituents of the air-dried roots of Celtis zenkeri. The volatile oil was extracted using hydro-distillation method and characterised using gas chromatography-mass spectrometry (GC-MS). The volatile oil
Ejike Onwudiegwu Okpala   +9 more
doaj   +1 more source

Regional Oil Extraction and Consumption: A simple production model for the next 35 years Part I [PDF]

open access: yesarXiv, 2016
The growing conflicts in and about oil exporting regions and speculations about volatile oil prices during the last decade have renewed the public interest in predictions for the near future oil production and consumption. Unfortunately, studies from only 10 years ago, which tried to forecast the oil production during the next 20-30 years, failed to ...
arxiv  

Chemically Reactive Thin Films: Dynamics and Stability

open access: yesAdvanced Materials Interfaces, EarlyView.
What happens to a thin liquid film when chemical reactions occur inside it? By means of theoretical analysis, it is showed that such systems (which are very common in heterogeneous catalysis) become very dynamic and not only their wetting properties are strongly affected by the chemical activity, moreover their interface can undergo traveling and ...
Tilman Richter   +3 more
wiley   +1 more source

Electroless Plating on Polymer Surfaces: Comprehensive Review of Mechanism, Process, Analysis, and Future Applications

open access: yesAdvanced Materials Interfaces, EarlyView.
This article provides a comprehensive overview of electroless plating, covering its basic mechanisms, bath composition, operating parameters, and metal layer characterization. It also addresses recent advancements, current limitations, and potential improvements, as well as the technology's applications in various industries.
Na Kyoung Kim   +4 more
wiley   +1 more source

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