Results 21 to 30 of about 245 (206)

Chemical Composition and Toxicity of PM₁₀ and PM_0.1 Samples near Open-Pit Mines and Coal Power Stations

Life, 2022
Particulate matter (PM)
Aleksey Larionov, Valentin Volobaev, Anton Zverev, Evgeniya Vdovina, Sebastian Bach, Ekaterina Schetnikova, Timofey Leshukov, Konstantin Legoshchin, Galina Eremeeva   +8 more
doaj   +1 more source

Evaluating net life-cycle greenhouse gas emissions intensities from gas and coal at varying methane leakage rates

Environmental Research Letters, 2023
The net climate impact of gas and coal life-cycle emissions are highly dependent on methane leakage. Every molecule of methane leaked alters the climate advantage because methane warms the planet significantly more than CO _2 over its decade-long ...
Deborah Gordon, Frances Reuland, Daniel J Jacob, John R Worden, Drew Shindell, Mark Dyson   +5 more
doaj   +1 more source

Research on cross interference and evaluation method of coal mine gas detection equipment

Gong-kuang zidonghua, 2023
At present, coal mine underground gas detection equipment often causes false alarms or fails to alarm due to cross interference. There are potential safety hazards.
CHEN Yongran
doaj   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Toward Stable Multivalent Metal Batteries: Understanding the Interfacial Chemistry for Magnesium and Calcium Metal Anodes

Advanced Functional Materials, EarlyView.
Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin, Qi Meng, Juncai Long, Chuheng Cao, Zheng‐Long Xu   +4 more
wiley   +1 more source

Fluid inclusions and sulfur stable isotopes of the Sarab 3 iron ore deposit (the Shahrak mining area - north Bijar)

Journal of Economic Geology, 2021
Introduction Cenozoic magmatism in Central Iran has caused formation of contact metmorphed rocks especially skarns (Calagari and Hosseinzadeh, 2006, Karimzadeh Somarain and Moayyed, 2002). The skarns consist of valuable ore deposits.
Mohammad Maanijou, Mehrdad Ferdowsi Rashed   +1 more
doaj   +1 more source

Sulfur analyses and mineralogical data in the preliminary mine waste characterization

Environmental Monitoring and Assessment, 2022
AbstractThe objective of this study was to investigate the use of the acid production potential (AP) calculation factor and seven different S analysis methods in the preliminary mine waste characterization by analyzing and comparing 48 Finnish mine waste samples.
Teemu Karlsson, Päivi M. Kauppila, Marja Lehtonen, Lena Alakangas, Tommi Kauppila   +4 more
openaire   +2 more sources

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh, Ying Zhao, Enzhong Jin, Zixin Zhang, Vinicius Martins, Parham Pirayesh, Yi Gan, Yi Yuan, Yijia Wang, Frederick Benjamin Holness, Changhong Cao, Jun Song, Yang Zhao   +12 more
wiley   +1 more source

Experimental and simulation study on the effect of sulfur content on spontaneous combustion charcateristics of coal

Meikuang Anquan
To explore the influence of sulfur content on the spontaneous combustion characteristics of coal and find efficient ways to prevent and control the spontaneous combustion disaster of high sulfur coal, the oxidation processes of typical high sulfur coal ...
Junjian LIU, Yibo TANG, Honggang LIU
doaj   +1 more source

Influence of Sorbent Characteristics on Fouling and Deposition in Circulating Fluid Bed Boilers Firing High Sulfur Indian Lignite

Journal of Combustion, 2013
125 MWe circulating fluidized bed combustion (CFBC) boiler experienced severe fouling in backpass of the boiler leading to obstruction of gas flow passage, while using high sulfur lignite with sorbent, calcium carbonate, to capture sulfur dioxide ...
Selvakumaran Palaniswamy, M. Rajavel, A. Leela Vinodhan, B. Ravi Kumar, A. Lawrence, A. K. Bakthavatsalam   +5 more
doaj   +1 more source