Results 31 to 40 of about 4,337 (145)

Modelling and simulation of hydrogen production via natural gas plasma pyrolysis

open access: yesThe Canadian Journal of Chemical Engineering, Volume 104, Issue 3, Page 1174-1189, March 2026.
Methane pyrolysis simulation model. Abstract Plasma pyrolysis is a cutting‐edge technology that produces hydrogen and solid carbon from methane without emitting carbon dioxide. In this study, we developed a process simulation model in Aspen HYSYS to analyze the behaviour of this technology at the commercial scale.
Muhammad Badrul Islam Chowdhury   +2 more
wiley   +1 more source

Determination of polycyclic aromatic hydrocarbons (PAHs) in water, sediment and tissues of five sturgeon species in the southern Caspian Sea coastal regions [PDF]

open access: yes, 2012
Concentration levels of 16 polycyclic aromatic hydrocarbons (PAHs) consisting of naphthalene, acenaphthylene, acenaphthene, fluorine, phenantherene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k ...
Hasanzati Rostami, A.   +3 more
core   +1 more source

π‐Expanded Fluoranthenes as Chromophores With Tailored Properties

open access: yesHelvetica Chimica Acta, Volume 109, Issue 3, March 2026.
A series of π‐expanded fluoranthene scaffolds selectively functionalized with electron donors and acceptors were synthesized. The evolution of the structural, optoelectronic, and redox properties in relation to substitution and cyclization was comprehensively studied both in experiment and in theory. The results identify the compounds as highly tunable
Silas C. Eiden   +4 more
wiley   +1 more source

Traditional smoking of Wallachian cheeses and sausages in Polish and Slovak parts of the Carpathian Mountains

open access: yesJournal of Ethnic Foods
Wallachian expansion brought to the Carpathian Mountains a system of shepherd economy—farming, production of Wallachian cheeses, animals adapted to life in difficult mountain conditions—mainly sheep of the Cakiel breed group.
Władysław Migdał   +7 more
doaj   +1 more source

Combining Insecticides and Bioinputs With Eucalyptus Wood Vinegar: Effects on the Soybean Crop

open access: yesAdvances in Agriculture, Volume 2026, Issue 1, 2026.
The use of pesticides and bioinputs in agriculture is one of the most vital needs today to improve crop yields. A combination of pesticides and bioinputs, along with natural agents, is a viable solution to make agribusiness more eco‐friendly. Wood vinegar (WV) is a recognized agricultural input that enhances plant growth and can act as a valuable agent
Leonardo José de Sousa Lima   +10 more
wiley   +1 more source

Fast solid-phase extraction-gas chromatography-mass spectrometry procedure for oil fingerprinting. Application to the Prestige oil spill. [PDF]

open access: yes, 2004
A rapid and simple fractionation procedure using solid-phase extraction (SPE) cartridges was developed for an accurate determination of aliphatic and polycyclic aromatic hydrocarbons in petroleum residues and further application in chemical ...
Albaigès J   +4 more
core   +1 more source

Shortcut to Highly Fluorescent Perylene Derivatives: From Fluoranthene Fissure‐Coupling to Late‐Stage Aromatic Extension

open access: yesChemistryEurope, Volume 3, Issue 6, November 11, 2025.
A two‐step shortcut for access to highly soluble, bent, and extended perylene‐based nanographene P1 from a nonperylene aromatic homologation precursor is presented. The modular, stepwise, and rational π‐extension postfunctionalization strategy allows for the tuning of the fluorescent emission properties to reach high quantum yields up to 0.78, giving ...
Lorena Capdevila   +8 more
wiley   +1 more source

Sedimentary records of polycyclic aromatic hydrocarbons (PAHs) in remote lakes across the Tibetan Plateau [PDF]

open access: yes, 2016
Sediment cores from five lakes across the Tibetan Plateau were used as natural archives to study the time trends of polycyclic aromatic hydrocarbons (PAHs). The depositional flux of PAHs generally showed an increasing trend from the deeper layers towards
Jing, C   +6 more
core   +1 more source

Development of new remediation technologies for contaminated soils based on the application of zero-valent iron nanoparticles and bioremediation with compost [PDF]

open access: yes, 2017
This study aimed to develop new techniques for the remediation of contaminated soils based on the application of zero-valent iron nanoparticles (nZVI) and bioremediation with compost from organic wastes and a mixed technique of both. An assessment of the
De Soto García, I.S.   +6 more
core   +6 more sources

Ion-Molecule Reactions in Unsaturated Hydrocarbons: Allene, Propyne, Diacetylene, and Vinylacetylene [PDF]

open access: yes, 1984
Ion-molecule reactions in allene, propyne, diacetylene, and vinylacetylene (1-buten-3-yne) have been studied at near-thermal energies by the technique of ion cyclotron resonance mass spectrometry.
Anicich, Vincent G.   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy