Results 11 to 20 of about 798,802 (313)

Cysteine and Methionine Biosynthetic Enzymes Have Distinct Effects on Seed Nutritional Quality and on Molecular Phenotypes Associated With Accumulation of a Methionine-Rich Seed Storage Protein in Rice

open access: yesFrontiers in Plant Science, 2020
Staple crops in human and livestock diets suffer from deficiencies in certain “essential” amino acids including methionine. With the goal of increasing methionine in rice seed, we generated a pair of “Push × Pull” double transgenic lines, each containing
Sarah J. Whitcomb   +8 more
doaj   +1 more source

Polyisoprene Captured Sulfur Nanocomposite Materials for High-Areal-Capacity Lithium Sulfur Battery [PDF]

open access: yes, 2019
A polyisoprene-sulfur (PIPS) copolymer and nano sulfur composite material (90 wt % sulfur) is synthesized through inverse vulcanization of PIP polymer with micrometer-sized sulfur particles for high-areal-capacity lithium sulfur batteries.
Fang, C   +7 more
core   +1 more source

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

Geochemistry of reduced inorganic sulfur, reactive iron, and organic carbon in fluvial and marine surface sediment in the Laizhou Bay region, China [PDF]

open access: yes, 2015
Understanding the geochemical cycling of sulfur in sediments is important because it can have implications for both modern environments (e.g., deterioration of water quality) and interpretation of the ancient past (e.g., sediment C/S ratios can be used ...
Bottrell, S   +4 more
core   +2 more sources

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

The Curious Conundrum Regarding Sulfur Abundances In Planetary Nebulae [PDF]

open access: yes, 2012
Sulfur abundances derived from optical emission line measurements and ionization correction factors in planetary nebulae are systematically lower than expected for the objects' metallicities. We have carefully considered a large range of explanations for
Ferland, G. J.   +4 more
core   +3 more sources

Seasonal changes in microbial dissolved organic sulfur transformations in coastal waters [PDF]

open access: yes, 2020
The marine trace gas dimethylsulfide (DMS) is the single most important biogenic source of atmospheric sulfur, accounting for up to 80% of global biogenic sulfur emissions.
Dixon, Joanna L.   +3 more
core   +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

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

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