Results 151 to 160 of about 1,795,114 (414)
Revegetation Research on Coal Mine Overburden Materials in Interior to Southcentral Alaska [PDF]
, 1987 This report was reprinted from Focus on Alaska's Coal '86: Proceedings of the Conference MIRL Report Number 72. The pagination in the original publication has been retained.
Mitchell, Wm. W.
core
Nature, 1904 SOME of your readers will no doubt be interested to see the photograph sent herewith, which represents a peculiar growth of coal on a piece of timber.
openaire +2 more sources
Sulfonated para‐Polybenzimidazole Membranes for Use in Vanadium Redox Flow Batteries
Advanced Energy Materials, EarlyView.Dense sulfonated para‐PBI membranes (MS‐PBI) are tested in the VRFB. The conductivity is 10 times lower than reported for MS‐PBI gel membranes, but 10 times higher than that of meta‐PBI. The influence of membrane preparation process, thickness, and operating temperature on the VRFB performance is investigated.
Trung Tuyen Bui +14 more
wiley +1 more source
Coal Enterprise Management and Asynchronism of Return [PDF]
arXiv, 2012 For researching the association between coal enterprise management and return in financial market, this paper applies the method of time difference relevance and PageRank method to seek the leader-index of a stock set containing 21 coal enterprises in A-share market and score those stocks.
arxiv
The Prairie State Heats Up [PDF]
, 2009 Home to the second largest coal reserves in the United States, Illinois is in a position to be the nation's leader in developing coal gasification projects.
Linda Casey
core
Advanced Energy Materials, EarlyView.Terphenyl groups bearing meta‐phenylene and trifluoromethyl substituents as hydrophobic components are incorporated into a quaternized polyphenylene‐based backbone to produce AEMs. The fabricated thin membranes exhibit high ion conductivity, alkaline stability, and mechanical robustness.
Fanghua Liu +10 more
wiley +1 more source
Early Warning System for Seismic Events in Coal Mines Using Machine Learning [PDF]
arXiv, 2016 This document describes an approach to the problem of predicting dangerous seismic events in active coal mines up to 8 hours in advance. It was developed as a part of the AAIA'16 Data Mining Challenge: Predicting Dangerous Seismic Events in Active Coal Mines. The solutions presented consist of ensembles of various predictive models trained on different
arxiv
Concentration of germanium in the ash of American coals, a progress report [PDF]
, 1953 Taisia Maximovna Stadnichenko +3 more
openalex +1 more source
Intensification of Alkaline Electrolyzer with Improved Two‑Phase Flow
Advanced Energy Materials, EarlyView.Porous nickel‐type electrodes with low tortuosity are fabricated and their role in reducing the capillary pressure, bubble point, and ohmic resistance, which led to lower energy loss and higher current densities and efficiencies is investigated. The cell delivers a current density of 2 A cm−2 at ≈2 V.
Franz Egert +17 more
wiley +1 more source