Results 21 to 30 of about 406,292 (316)

Study on the decomposition mechanism and insulation stability of HFO-1336mzz(E)/air mixtures as a new environment-friendly insulation medium under AC voltage

open access: yesAIP Advances, 2023
As one of hydrofluoroolefins (HFOs), HFO-1336mzz(E) is regarded as a promising eco-friendly alternative insulation medium to Sulfur Hexafluoride (SF6) owing to its excellent environmental effect and insulation property.
Nian Tang   +9 more
doaj   +1 more source

SQUID-SIMS is a useful approach to uncover primary signals in the Archean sulfur cycle [PDF]

open access: yes, 2014
The Agouron Institute and National Aeronautic and Space Administration Exobiology Award NNX09AM91G supported this work.Many aspects of Earth's early sulfur cycle, from the origin of mass-anomalous fractionations to the degree of biological participation,
Guan, Yunbin   +19 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

Determination of Sulfur in Different Types of Geochemical Samples by ICP-OES with Acid Dissolution and Combustion-Infrared Absorption Spectrometry

open access: yesYankuang ceshi, 2022
BACKGROUND Inductively coupled plasma-optical emission spectrometry (ICP-OES) and combustion-infrared absorption spectrometry are the most widely used methods to measure sulfur content in geological samples.
SHI Youchang   +4 more
doaj   +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

Longterm protection of building structures with sulfur-based nanoscale coatings [PDF]

open access: yesНанотехнологии в строительстве, 2019
The problem of creating reliable protective coatings that increase the mechanical characteristics of concrete building structures (piles, bridges, ceiling arches, tunnels, chutes, culverts, wells, paving slabs and curbs, etc.) operated under the ...
Ismail A. Massalimov,   +2 more
doaj   +1 more source

Bunsen section thermodynamic model for hydrogen production by the sulfur-Iodine cycle [PDF]

open access: yes, 2009
A model for the Bunsen section of the Sulfur – Iodine thermo-chemical cycle is proposed, where sulfur dioxide reacts with excess water and iodine to produce two demixing liquid aqueous phases (H2SO4 rich and HI rich) in equilibrium.
Hadj-Kali, Mohamed   +7 more
core   +1 more source

Ferromagnetically filled carbon nano-onions: the key role of sulfur in dimensional, structural and electric control [PDF]

open access: yesRoyal Society Open Science, 2018
A key challenge in the fabrication of ferromagnetically filled carbon nano-onions (CNOs) is the control of their thickness, dimensions and electric properties.
D. Medranda   +8 more
doaj   +1 more source

Sulfur-Rich Polymers Based Cathode with Epoxy/Ally Dual-Sulfur-Fixing Mechanism for High Stability LithiumSulfur Battery

open access: yes, 2021
Lithium–sulfur (Li–S) batteries have attracted a great deal of attention for the next-generation energy storage devices due to their inherently high theoretical energy density, high natural abundance, and low cost.
Tianpeng Zhang   +17 more
core   +1 more source

Dark Sulfur: Quantifying unpolymerized sulfur in inverse vulcanized polymers

open access: yes, 2022
Elemental sulfur is produced as a by-product of the refining process of the petrochemicals industry. This generates an excess of sulfur each year that currently goes unused.
Tom, Hasell   +2 more
core   +1 more source

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