Results 51 to 60 of about 1,037,713 (150)

The application of multivariate classification method by reference points to determine the degree of spontaneous combustion of coal on the example of the Raspadskaya mine in Kuzbass

Известия высших учебных заведений: Геология и разведка, 2015
The objective of the research was to use the data about coal seam, obtained at the stage of exploration, to predict spontaneous combustion of coal. As a result of studying the geological structure of coal seams, physical-chemical research and analysis of
F. A. Golynskaya, O. C. Smirnova, R. A. Nikonov   +2 more
doaj   +1 more source

Dual-hazard control mechanism of burst-prone and spontaneous combustion coalface considering effect of retreat speed

Energy Reports, 2021
For longwall top coal caving coalface characterized by strong rock burst tendency and high risk of spontaneous combustion, retreat speed is one of the key factors to induce the rock burst and spontaneous combustion of residual coal in goaf.
Shizhong Zhang, Gangwei Fan, Shuyin Jiang, Zhanglei Fan, Shaodong Li, Huining Ni   +5 more
doaj   +1 more source

Bio‐Based Polyurethanes for Sustainable and Multifunctional Applications

Advanced Science, Volume 13, Issue 50, 7 September 2026.
Bio‐based polyurethanes prepared from vegetable oils, lignin, and polysaccharides have attracted increasing interest as alternatives to fossil‐derived polyurethanes. This review summarizes recent progress in their chemistry, structural engineering, and advanced applications, highlighting the roles of feedstocks, chain‐segment design, dynamic covalent ...
Xin Li, Henghui Deng, Shiwei Yu, Jiawei Huang, Zehong Chen, Dawei Zhao, Chaoqun Zhang   +6 more
wiley   +1 more source

Susceptibility to Spontaneous Combustion of Vietnamese Anthracite

Journal of MMIJ, 2017
Since the first outbreak of spontaneous combustion occurred at Hong Thai Coal Mine in May 2004, several spontaneous combustions have occurred in other four anthracite coal mines as well as in one sub-bituminous coal mine in Vietnam.
Le Trung TUYEN, Kotaro OHGA, Takehiro ISEI   +2 more
doaj   +1 more source

Exploration of Physical Properties of Sodium‐Based Perovskite Hydrides ANaH3 (A = Hf, Nb, Pd, Ru) for Hydrogen Storage Applications: First Principles Study

Advanced Physics Research, Volume 5, Issue 9, September 2026.
First‐principles calculations reveal that ANaH3 (where A = Hf, Nb, Pd, Ru) perovskite hydrides combine structural stability, favorable electronic properties, and low hydrogen desorption temperatures (280–369 K). Strong metal–hydrogen interactions and reversible hydrogen storage characteristics identify these materials as promising candidates for ...
Fikadu Takele Geldasa, Francis Birhanu Dejene   +1 more
wiley   +1 more source

Development a modified crossing point temperature (CPTHR) method to assess spontaneous combustion propensity of coal and its chemo-metric analysis [PDF]

, 2018
Spontaneous combustion of Indian coals was investigated using spontaneous combustion rig at University of Nottingham, UK to assess their susceptibility. In the present study authors have used eleven coal samples collected from the Jharia coalfield (JCF),
Mohalik, N.K., Lester, E., Lowndes, I.S.
core   +1 more source

Business Strategies and Environmental Transparency in the Brazilian Mining Sector

Business Strategy &Development, Volume 9, Issue 3, September 2026.
ABSTRACT In recent years, Brazil has experienced severe accidents caused by mining companies. This study aims to analyze the socio‐environmental strategies and environmental transparency practices adopted by the largest Brazilian mining companies following the Mariana and Brumadinho disasters, in light of Legitimacy Theory.
Samuel Carvalho De Benedicto, Cibele Roberta Sugahara, Cândido Ferreira da Silva Filho, Diego de Melo Conti, Luiz Henrique Vieira da Silva, Sônia Regina Barreto Muniz, Juan Fernando Álvarez Rodriguez, Melissa Silva Fernandes   +7 more
wiley   +1 more source

Investigation of spontaneous combustion of coal in a longwall panel

, 2014
31st Annual International Pittsburgh Coal Conference: Coal - Energy, Environment and Sustainable Development, PCC 2014 -- 6 October 2014 through 9 October 2014 -- 110055Spontaneous combustion of coal is pretty important especially for underground ...
Sivrikaya O., Ozdeniz H., Berberoglu S.
core   +1 more source

Study on Spontaneous Combustion Law and Prevention Technology of Abandoned Coal in Goaf of Coal Mine

Geofluids, 2023
The spontaneous combustion of coal in goaf areas is a significant natural disaster encountered during coal mining operations. To investigate the oxygen consumption characteristics of different coal types, we conducted TG experiments and closed oxygen ...
Lin Lin, Zongxiang Li, Mingqian Zhang, Chuntong Miao, Nan Jia, Yan Liu   +5 more
doaj   +1 more source

Parallel Chemical Activation and Surface Modification Activated Carbon for Lead Adsorption

Chemical Engineering &Technology, Volume 49, Issue 9, September 2026.
A novel parallel chemical activation and surface modification (PAM) approach was developed to produce palm kernel shell‐derived activated carbon in a simplified single‐step process. The resulting adsorbent achieved Pb2+ adsorption capacities comparable to conventionally prepared activated carbon (57.95 mg/g) while reducing adsorption costs by 36.6 ...
Stephanie Ying Lin Wong, Jia Yen Lai, Lock Hei Ngu   +2 more
wiley   +1 more source