Results 21 to 30 of about 110,282 (257)

Evaluation of the microwave-assisted organic acid separation of organic sulfur from high-sulfur coal

Clean Technologies and Environmental Policy, 2021
Abstract To explore the feasibility of organic acid removal of organic sulfur from high sulfur coal, three organic acids, oxalic acid, citric acid and ascorbic acid, were selected as desulfurization reagents. Combined with microwave irradiation technology, desulfurization experiments of high-sulfur coal treated with nitric acid were conducted ...
Chaoshun Jiang, Jin Liu, Shen Hao, Zheng Pang, Zhi Wang, Ping Li, Xing Xing   +6 more
openaire   +1 more source

Structural evolution characteristics of sulfur in coal during gold-tube thermal simulation

Fuel Processing Technology
This study used a gold tube thermal simulation experiment to investigate the release of gases, the formation of free sulfur-containing compounds, and the evolution of coal macromolecules and organic sulfur structures. Results indicate that at Easy%Ro = 0.
Liping Xue, Yuegang Tang, Shuo Gao
doaj   +1 more source

Chemical Diversity and Biochemical Transformation of Biogenic Organic Sulfur in the Ocean

Frontiers in Marine Science, 2020
Organic sulfur compounds are not only essential for organismal survival but also indispensable for the sulfur cycle. Over the past few decades, dimethylsulfoniopropionate (DMSP) and dimethyl sulfide (DMS) cycling in the upper ocean have been well ...
Kai Tang
doaj   +1 more source

Sulfur‐containing polymer cathode materials: From energy storage mechanism to energy density

InfoMat, 2022
Besides lithium‐ion batteries, it is imperative to develop new battery energy storage system with high energy density. In conjunction with the development of Li‐S batteries, emerging sulfur‐containing polymers with tunable sulfur‐chain length and organic
Rong Zou, Wenwu Liu, Fen Ran
doaj   +1 more source

Effect of sulfur and organic fertilizers on growth and yield of garlic Allium sativum L. [PDF]

Mesopotamia Journal of Agriculture, 2018
A field experiment was carried out during agricultural season 2011/2012 to study the effect of sulfur addition with some organic fertilizers on plant growth and the yield of garlic Allium sativum L.
Dena Shaheen, Raida Al-Hamdany
doaj   +1 more source

The relationship of soil sulfur with glomalin-related soil protein and humic substances under different mineral and organic fertilisation

Plant, Soil and Environment
In recent years, sulfur inputs into the soil have greatly diminished due to the significant decrease in SO2 emissions. Plant nutrients, like sulfur, can be released by the mineralisation of soil organic matter (SOM), which is a complicated mixture of ...
Pavel Suran, Jiří Balík, Martin Kulhánek, Ondřej Sedlář, Jindřich Černý   +4 more
doaj   +1 more source

Controls on Reactive Oxygen Species Cycles in Yellowstone Hot Springs: Implications for Biosignature Preservation on Mars

Frontiers in Astronomy and Space Sciences, 2022
Early Earth and Mars had analogous environments. While life developed on our planet, the question of whether it did on Mars remains to be answered.
Nancy W. Hinman, Megan A. Mave, Leanne C. Powers, Philippe Schmitt-Kopplin, Philippe Schmitt-Kopplin, Nathalie A. Cabrol, Michael Gonsior   +6 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

FEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata, Yoichi Sakai, Keisuke Tanaka, Etsuro Yoshimura, Ken Kitano, Morio Ishikawa, Tadahiro Nakamoto, Tsutomu Takayama, Hirofumi Inoue, Kaho Nomura, Tomonori Suzuki, Masataka Uchino, Akira Abe, Youichi Niimura   +13 more
wiley   +1 more source

Machine Learning‐Supported Analysis for Predicting and Visualizing Nonlinear Relationships Between Material Properties in Electroplated Chromium Layers

Advanced Engineering Materials, EarlyView.
This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer, Christopher Mai, Luca Eisentraut, Andreas Bund, Ricardo Buettner   +4 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source