Results 141 to 150 of about 66,438 (265)

The past, present and future of Konin Lignite Mine in central Poland

open access: yesGeologos
The Konin region is widely considered to be the cradle of lignite mining in Poland, having probably exploited as early as the 12th century on the outskirts of the present-day town of Konin.
Kasztelewicz Zbigniew   +3 more
doaj   +1 more source

Analiza wrażliwości wielkości i parametrów wyrobiska docelowego kopalni węgla brunatnego na zmianę ceny bazowej węgla [PDF]

open access: yes
Sensitivity analysis of lignite ultimate pit size and its parameters on change of lignite base price The influence of lignite base price on the size of ultimate pit (lignite supply) and decrease of lignite quality (decrease of calorific value and ...
Jurdziak, Leszek, Kawalec, Witold
core   +1 more source

Modeling Time-dependent CO$_2$ Intensities in Multi-modal Energy Systems with Storage

open access: yes, 2019
CO$_2$ emission reduction and increasing volatile renewable energy generation mandate stronger energy sector coupling and the use of energy storage. In such multi-modal energy systems, it is challenging to determine the effect of an individual player's ...
Ripp, Christopher, Steinke, Florian
core  

NORTH DAKOTA LIGNITE ENERGY INDUSTRY'S CONTRIBUTION TO THE STATE ECONOMY [PDF]

open access: yes
The lignite energy industry of North Dakota has become a significant force in the state's economy since the energy crisis of the 1970s. Key economic measures of the industry's contribution to the state's economy have been estimated annually since 1982 ...
Coon, Randal C., Leistritz, F. Larry
core   +1 more source

Maintenance [PDF]

open access: yes
Maintenance and production interact. The ideal way of accounting for this interaction, when estimating production functions, is by picking the temporal length of observations so that they embed integer multiples of the production—maintenance cycles for ...
Jonathan E. Leightner
core  

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