Results 31 to 40 of about 70 (59)
Cleat and Fracture Systems in Coal with Implications for Strength, Hydrofracking, and Gas-Water Flow Mechanisms: A Critical Review. [PDF]
ACS OmegaAbrar SW +12 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Arabian Journal of Geosciences, 2021
In this study, two limestone quarries, namely Quarry-1 and Quarry-2 were investigated in terms of the Schmidt Hammer Rebound (SHR) distribution. A total of 518 points, i.e., 158 points for Quarry-1 and 360 points for Quarry-2, were tested and evaluated in terms of SHR, respectively.
Candan Bilen
openaire +4 more sources
In this study, two limestone quarries, namely Quarry-1 and Quarry-2 were investigated in terms of the Schmidt Hammer Rebound (SHR) distribution. A total of 518 points, i.e., 158 points for Quarry-1 and 360 points for Quarry-2, were tested and evaluated in terms of SHR, respectively.
Candan Bilen
openaire +4 more sources
GEOSAINS KUTAI BASIN, 2022
Abstrak Kualitas batubara ditentukan oleh kandungan HGI, Ash Content, Inherent Moisture, Total Sulfur dan Kalori. Tujuan penelitian ini dilakukan untuk mengetahui hasil uji HGI, Ash Content, Inherent Moisture, Total Sulfur, kalori serta hubungannya dengan kalori batubara. Penelitian ini menggunakan data sekunder.
Supriyanto Supriyanto +3 more
openaire +1 more source
Abstrak Kualitas batubara ditentukan oleh kandungan HGI, Ash Content, Inherent Moisture, Total Sulfur dan Kalori. Tujuan penelitian ini dilakukan untuk mengetahui hasil uji HGI, Ash Content, Inherent Moisture, Total Sulfur, kalori serta hubungannya dengan kalori batubara. Penelitian ini menggunakan data sekunder.
Supriyanto Supriyanto +3 more
openaire +1 more source
Influence of selected factors of Polish coking coals on the Hardgrove Grindability Index (HGI)
International Journal of Coal Preparation and Utilization, 2018ABSTRACTThis paper presents the results of a study on the influence of selected parameters of coal on the Hardgrove Grindability Index (HGI). The samples used in the investigation came from the same Polish coking-coal mine. The samples varied in terms of their quality parameters, i.e., volatile matter, ash content, chemical composition, maceral ...
Michał Rejdak +2 more
openaire +1 more source
2013
In this investigation, the effects of different coal chemical properties were studied to estimate the coal Hardgrove Grindability Index (HGI) values index. An artificial neural network (ANN) method for 300 data-sets was used for evaluating the HGI values. Ten input parameters were used, and the outputs of the models were compared in order to select the
Khoshjavan, S., Khoshjavan, R., Reza, B.
openaire +1 more source
In this investigation, the effects of different coal chemical properties were studied to estimate the coal Hardgrove Grindability Index (HGI) values index. An artificial neural network (ANN) method for 300 data-sets was used for evaluating the HGI values. Ten input parameters were used, and the outputs of the models were compared in order to select the
Khoshjavan, S., Khoshjavan, R., Reza, B.
openaire +1 more source
Influence of selected factors of Polish coking coals on the Hardgrove Grindability Index (HGI)
International Journal of Coal Preparation and Utilization, 2021Michał Rejdak
exaly