Results 71 to 80 of about 9,419 (241)

Moss Biocrusts Regulate Heavy Metal Speciation and Mobility in Coal Mine Soils

Land Degradation &Development, EarlyView.
ABSTRACT On a global scale, coal mining activities often lead to heavy metal(loid) contamination in soils of mine dump sites, posing serious ecological risks. As ecosystem “engineers,” biological soil crusts (biocrusts)—especially moss crust—have shown great potential in remediating heavy metal‐polluted soils, but their roles remain underexplored.
Song Guang, Yang Haotian, Wang Xinyu, Li Guoxin, Zheng Ying   +4 more
wiley   +1 more source

Discussion on Monitoring Technology of Coal Mine Dust

Gong-kuang zidonghua, 2011
The paper analyzed harm and characteristics of coal mine dust and standard of contact concentration of respiratory coal dust in air of working space, introduced developing status of monitoring technology of coal mine dust, and compared characteristics of
LI Dong-xiao
doaj  

Investigation of the Minimum Ignition Energy Required for Combustion of Coal Dust Blended with Fugitive Methane

Fire
Ventilation Air Methane (VAM) significantly contributes to global warming. Capturing and mitigating these emissions can help combat climate change. One effective method is the thermal decomposition of methane, but it requires careful control to prevent ...
Jafar Zanganeh, Mohammed J. Ajrash Al-Zuraiji, Behdad Moghtaderi   +2 more
doaj   +1 more source

Comparative study of the explosion pressure characteristics of micro- and nano-sized coal dust and methane–coal dust mixtures in a pipe

International Journal of Coal Science & Technology, 2020
Coal dust explosion accidents often cause substantial property damage and casualties and frequently involve nano-sized coal dust. In order to study the impact of nano-sized coal on coal dust and methane–coal dust explosions, a pipe test apparatus was ...
Bo Tan, Huilin Liu, Bin Xu, Tian Wang
doaj   +1 more source

Optimization of Land Pattern in Mining Area Based on the Improvement of Ecosystem Service Function—A Case Study of Fushun Mining Area

Land Degradation &Development, EarlyView.
ABSTRACT Mining activities are prevalent worldwide and pose significant threats to the supply of ecosystem services (ESs) for humanity. Many mining areas face challenges related to recovery and reclamation following resource depletion. A key challenge for the sustainable development of these areas is how to achieve collaborative optimization of land ...
Luge Rong, Changwei An
wiley   +1 more source

Impact of Waste‐Derived Slate Dust on Structural, Thermal, and Thermomechanical Behavior of Recycled Poly(Ethylene Terephthalate)

Polymer Composites, EarlyView.
This study investigates the use of waste slate dust as a filler in recycled PET. Incorporating up to 20 wt% slate dust caused no filler‐induced molecular degradation, increased the crystallization temperature, thermal conductivity, and storage modulus. ABSTRACT Recycled polyethylene terephthalate (rPET) is widely considered a sustainable alternative to
Aditya Chauhan, Tej Singh, Andrea Fiorati, Sampat Singh Bhati, László Lendvai, Luigi De Nardo, Robert Brüll   +6 more
wiley   +1 more source

Development of Cellulosic Bioplastic‐Based Biocomposites for Biodegradable Packaging Applications: Effect of High Acetyl Content and High Filler Loading

Polymer Engineering &Science, EarlyView.
Schematic representation of the development of cellulosic bioplastic‐based biocomposites via reactive extrusion and injection molding, demonstrating improved oxygen and water vapor barrier properties for biodegradable packaging applications. ABSTRACT Cellulosic bioplastics have attained significant interest because of their biodegradability and ...
Reshma Krishnan, Manjusri Misra, Amar K. Mohanty   +2 more
wiley   +1 more source

CFD MODELLING OF THE DUST AND AIR VELOCITY BEHAVIOUR AT AN UNDERGROUND COAL MINE ROADWAY

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi
Dust pollution for ventilation systems is a big problem for mine workers in underground coal mines. The respirable dust concentration is important to the physical and spiritual health of miners. It is hazardous up to 2 mg/m3in the air in underground coal
Gülnaz Daloğlu
doaj   +1 more source

Depositional and Hydrological Relationships Between Buried Dead Ice and the Active Layer in the McMurdo Dry Valleys, Antarctica: A Study of Sediment Geochemistry and Cation Concentrations

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT The McMurdo Dry Valleys, the largest ice‐free region in Antarctica, are home to a cold‐desert hydrologic system of glaciers, snowbanks, streams, and lakes. Freshwater is also stored as dead glacial ice, which is poorly constrained in terms of ion concentrations and interactions with both in situ and overlying sediments.
Matthew C. Witscheber, Kate M. Swanger
wiley   +1 more source

Sustainable Utilization and Fire Protection of Wood‐Based Composites in Buildings: Innovations, Challenges, and Future Directions

Sustainable Development, EarlyView.
ABSTRACT The increasing use of wood and wood‐based composites in construction reflects a global shift toward renewable materials that support sustainable development objectives, including carbon reduction and responsible resource use. While wood offers substantial environmental benefits compared to conventional materials such as concrete and steel, its
Qaisar Munir, Marko Hyvärinen, Timo Kärki   +2 more
wiley   +1 more source