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Materias / palabras clave: coal utilization, coal mining, mineral processing, coalfield geology, coal conversion, environmental protection; Technology: Mining engineering. Metallurgy

ObjectiveRescue drilling rigs undergo intense vibration at borehole mouths when operating in a confined underground space of coal mines. To address this issue, this study designed a compact multi-directional, passive dyn...

The Paiton Steam Power (PLTU) is an industry that uses coal as fuel. One of the wastes is fly ash. Fly ash can be used as a partial replace cement because it has pozzolanic properties. The aim of this research is to dete...

In response to the existing problems in the temperature monitoring of boreholes in high-temperature fire areas of open-pit coal mines, this study proposed an intelligent temperature monitoring and early warning system by...

During this time, the determination of the mine coordinates location done by the fieldman of PT. Kalimantan Earth Results was using a GPS locator. Found 27 points of coal mines and 18 coal ports spread across the souther...

BackgroundThe surface subsidence induced by coal seam mining represents a continuous dynamic evolution process. Constructing a full-time perdition model for surface subsidence in goafs holds significant theoretical and p...

BackgroundIn the field of geological exploration of coal mines, methods such as in-seam seismic exploration, the transient electromagnetic method, and audio-frequency electrical penetration offer unique technical advanta...

Fil: Carrasco Henríquez, Noelia. Universidad de Concepción; Chile Fil: Neves Guzmán, Camila. Universidad de Concepción; Chile Fil: Mendoza Manotas, María Angélica. Universidad de Concepción; Chile

Abstract Catalytic biomass gasification is a process that involves the conversion of solid biomass constituents into a gaseous fuel, typically a mixture of CO, H2, CO2, and CH4 through high-temperature thermochemical rea...

Abstract In Australian open cut coal mines, floor disruption blasting is emerging as a promising technique for mitigating low wall failures by disturbing the continuity of shear planes within weak geological layers. Howe...

ABSTRACT Selective recognition of cancer‐associated proteins (CAPs) by antibodies, followed by their delivery into the intracellular organelle, the lysosome, results in targeted degradation of CAPs and suppresses the g...

Abstract In ultra high-energy collisions, nuclei with very low binding energies are not expected to survive the dense and hot final state environment. The traditional view has therefore been that nuclei form via coalesce...

Abstract The uncontrolled floor heave in gob-side entry retaining is the serious problem of underground coal mining. This phenomenon has gravely restricted the application of pillarless mining that has been increasingly ...

Resumo Este artigo, em primeiro lugar, situa o estado-nação historicamente como um produto da revolução capitalista. Em segundo lugar, distingue o Estado (o sistema jurídico e a organização que o garante) do estad...

Six productive samples from the upper part of the Early Carboniferous Ambo Formation at Pongo de Mainique, Peru, are analyzed for 55 recognized miospore species of continental origin. One new morphospecies, Cristatispori...

Lecithins are frequently applied in the food industry as emulsifiers, viscosity regulators, and dispersing agents. The main aim of the present work was to study the emulsifying capability of diverse sunflower lecithins s...

Exceptional points (EPs) are degenerate singularities in a non-Hermitian system that can be induced by controlling the interaction between resonant photonic modes. EPs can enable unusual optical phenomena and significant...

This article examines how bicameral institutional design shapes legislative cohesion in a presidential democracy. Differences in time horizon, electoral calendars and the legislative importance of bills generate systemat...

Abstract Background Most households in developing countries like India are not able to afford to get the services of efficient energy for cooking and lighting. Therefore, they rely mostly on solid fuels (firewood, dung c...

"The mechanism of the phase inversion (PI) process that occurs during the bulk polymerization of High Impact Polystyrene (HIPS) is studied in this article. Transmission electron micrographs (TEM) were obtained for differ...

Is it possible to contribute carbon neutral by yeasts inhabiting in aquatic environments of our neighborhood? In COP26, held from October to November in 2021, various concrete attempts by participating countries were pro...

RESUMO Avaliou-se a suplementação de prebiótico (mananoligossacarídeo - 2g/kg), probiótico (Bacillus subtilis, Cohn, 1872, Bacillales, Bacillaceae - 2g/kg) e simbiótico (mananoligossacarídeo - 2g/kg + B. subtilis ...

As a substitute for traditional perfluorooctane sulfonate(PFOS) substances, chlorinated polyfluoroalkyl ether sulfonate acid(6∶2 Cl-PFAES, F-53B) has been widely adopted in China's electroplating industry. It should be...

Recent years have seen the formation of new parties across Europe that challenge established patterns of party competition and coalition-building during elections. While a similar trend of party creation has occurred in ...