Results 21 to 30 of about 1,309,533 (402)

Sulfur analysis of Bolu-Mengen lignite before and after microbiological treatment using reductive pyrolysis and gas chromatography/mass spectrometry [PDF]

open access: yes, 2005
Atmospheric pressure-temperature programmed reduction coupled with on-line mass spectrometry (AP-TPR/MS) is used for the first time on microbiologically treated coal samples as a technique to monitor the degree of desulfurization of the various sulfur ...
Bozdemir T.   +27 more
core   +1 more source

الخواص الميكانيكية و الحرارية للاسفلت المحور ب [البولي ايثيلين كلايكول و نفايات تنقية كبريت المشراق(البلوداون)] [PDF]

open access: yesمجلة ابحاث كلية التربية الاساسية
تضمنت هذه الدراسة تحسين مواصفات اسفلت الدورة باستخدام المخلفات الكبريتية (البلوداون) الناتجة عن تنقية الكبريت في منجم كبريت المشراق بطريقة المعاملة الحرارية، بالإضافة إلى استخدام مزيج من المخلفات الكبريتية والبولي ايثلين كلايكول في تعديل الإسفلت.
سعد صالح احمد   +2 more
doaj   +1 more source

Adsorptive Desulfurization of Gas Oil Over Cu2O/AC, ZnO/AC and NiO/AC Adsorbents [PDF]

open access: yesEngineering and Technology Journal, 2017
In the present work, Iraqi gasoil fraction was treated by using three prepared metal-impregnated activated carbon adsorbents for sulfur removal using adsorptive desulfurization method.
S.H. Ammar, S.A. Jaffar
doaj   +1 more source

Elemental Abundances of Blue Compact Dwarfs from mid-IR Spectroscopy with Spitzer [PDF]

open access: yes, 2007
We present a study of elemental abundances in a sample of thirteen Blue Compact Dwarf (BCD) galaxies, using the $\sim$10--37$\mu$m high resolution spectra obtained with Spitzer/IRS.
Bernard-Salas, J.   +6 more
core   +5 more sources

Solid state lithiation-delithiation of sulphur in sub-nano confinement: a new concept for designing lithium-sulphur batteries. [PDF]

open access: yes, 2016
We investigate the detailed effects and mechanisms of sub-nano confinement on lithium-sulfur (Li-S) electrochemical reactions in both ether-based and carbonate-based electrolytes.
Bozhilov, Krassimir N   +3 more
core   +1 more source

Wormholes propagation for fractured-vuggy formation: Laboratory tests, numerical simulation and field application

open access: yesPetroleum, 2017
The propagation of wormhole is vital important for matrix acidizing and acid fracturing in carbonate reservoirs. While the formation of acid dissolved wormhole is derived from heterogeneous physical and chemical transportations and reactions.
Fei Liu   +5 more
doaj   +1 more source

Sulfur loss from subducted altered oceanic crust and implications for mantle oxidation [PDF]

open access: yes, 2020
© The Author(s), [year]. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Walters, J. B., Cruz-Uribe, A. M., & Marschall, H. R.
Cruz‐Uribe, Alicia M.   +2 more
core   +1 more source

Influence of Ethylene Signaling in the Crosstalk Between Fe, S, and P Deficiency Responses in Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2021
To cope with P, S, or Fe deficiency, dicot plants, like Arabidopsis, develop several responses (mainly in their roots) aimed to facilitate the mobilization and uptake of the deficient nutrient.
María José García   +6 more
doaj   +1 more source

Large sulfur isotope fractionations in Martian sediments at Gale crater [PDF]

open access: yes, 2017
Variability in the sulfur isotopic composition in sediments can reflect atmospheric, geologic and biological processes. Evidence for ancient fluvio-lacustrine environments at Gale crater on Mars and a lack of efficient crustal recycling mechanisms on the
AS Yen   +31 more
core   +1 more source

A Perspective toward Practical Lithium–Sulfur Batteries

open access: yesACS Central Science, 2020
Lithium–sulfur (Li–S) batteries have long been expected to be a promising high-energy-density secondary battery system since their first prototype in the 1960s.
Meng Zhao   +4 more
semanticscholar   +1 more source

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