Results 121 to 130 of about 335,851 (308)
The graphical abstract shows an eco‐friendly approach to fabricating a biodegradable electrochemical sensor. Carbon quantum dot/nickel oxide (CQD/NiO) nanocomposites are synthesized using Aloe arborescens leaf extract, which served as a natural reducing and stabilizing agent.
Nokwanda Ngema +3 more
wiley +1 more source
Regional price targets appropriate for advanced coal extraction [PDF]
A methodology is presented for predicting coal prices in regional markets for the target time frames 1985 and 2000 that could subsequently be used to guide the development of an advanced coal extraction system.
Terasawa, K. L., Whipple, D. M.
core +1 more source
Scale of Collieries and their Top-Level Management Capability in the Polish Coal Mining Industry: Recent Results [PDF]
In this paper the following topics are considered: retrospective research into the effect of coal mine scale on its effectiveness; research results on the effect of the "system size" (coal mine) on the top-level management capability; and problem ...
Bendkowski, J. +2 more
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A Review on Magnesium Based Metal Hydrides for Thermal Energy Storage Systems
ABSTRACT The hydrogen storage in metal hydrides is an imminent, innovative, and environmentally beneficial approach that offers benefits for example, an ample amount of storage and elasticity in terms of thermodynamics necessary for hydrogen absorption and release.
Asif Nizam +3 more
wiley +1 more source
Nucleonic coal detector with independent, hydropneumatic suspension [PDF]
The design of a nucleonic, coal interface detector which measures the depth of coal on the roof and floor of a coal mine is presented. The nucleonic source and the nucleonic detector are on independent hydropneumatic suspensions to reduce the measurement
Handy, K., Jones, E. W.
core +1 more source
Current state-of-the-art in drying low-rank coals [PDF]
Preparing Alaska's coal for marketing -- Drying low-rank coals -- Effect of lignite source -- Acknowledgement -- References.Research on drying of low-rank coals, such as lignites and subbituminous coals, has been conducted for nearly half a century ...
Rao, P.D. and Wolff, E.N.
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ABSTRACT To alleviate the impact of the instability of renewable energy power generation on the power grid, coal‐fired power plants (CFPPs) have to undertake peak shaving tasks, which puts forward high requirements for the flexibility of CFPPs. To enhance the flexibility of CFPPs to consume more renewable energy, this paper innovatively proposes a ...
Yuguo Ni, Keliang Liu, Miao Yu, Hao Zhou
wiley +1 more source
ABSTRACT A specific microporous KOH/activated‐biochar (K/BC) was produced from a blend of date stones (DS) and walnut shells (WS) and used in the adsorptive desulfurization (ADS) of two types of model fuel DBT/n‐hexane (S‐hex), DBT/cyclohexane (S‐cyclohex).
Ameen L. Alyawer +4 more
wiley +1 more source
Characteristics and Fertility Status of Soils and Minesoils in Selected Areas of Usibelli Coal Mine, Healy, Alaska [PDF]
Alaska has been proven to contain not only bountiful oil and gas reserves. but also vast coal fields occurring from the southcentral coastline to the Interior and the Arctic zone to the north.
Kaija, Kevin J., Ping, Chien-Lu
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