Results 71 to 80 of about 18,367 (186)

Lignite price and split of profit negotiation in bilateral monopoly of lignite opencast mine and power plant [PDF]

open access: yes
The newest outcome of bilateral monopoly (BM) of lignite opencast mine & power plant analysis have been discussed. The determinism of optimal solution maximising joint profits not only in quantity of lignite - the size and shape of the ultimate pit ...
Jurdziak, Leszek
core  

Characteristics of Mae Moh lignite: Hardgrove grindability index and approximate work index [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2012
The purpose of this research was to preliminarily study the Mae Moh lignite grindability tests emphasizing onHardgrove grindability and approximate work index determination respectively.
Wutthiphong Tara, Chairoj Rattanakawin
doaj  

Effects of lignite-based sulphur fertilizer levels on soil properties and growth of Brassica napus [PDF]

open access: yesEmirates Journal of Food and Agriculture
Lignite and sulphur are instrumental in enhancing the growth and yield-related traits of Brassica napus, commonly known as rapeseed. This study aimed to explore the effects of lignite-based sulphur fertilizers on Brassica napus production.
Azmat Ali Nosher   +9 more
doaj   +3 more sources

Natural radioactivity in lignites and lignite ash: Final report [PDF]

open access: yes, 1987
Natural radioactivity in a Texas lignite field and in leachates from lignite ash from power plants was measured. The radioactivity concentrations found (4 ppM uranium in the lignite, 16 ppM uranium in the lignite ash, and a few picocuries of natural radionuclides per liter in the leachates) do not differ appreciably from those found previously in ...
Greiner, N. R., Wagner, P.
openaire   +2 more sources

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

open access: yesBoreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest   +10 more
wiley   +1 more source

NORTH DAKOTA LIGNITE ENERGY INDUSTRY'S CONTRIBUTION TO THE STATE ECONOMY FOR 2005 AND PROJECTED FOR 2006 [PDF]

open access: yes
This report provides estimates of the lignite industry's contribution to the North Dakota economy, using key economic indicators such as retail trade activity, personal income, total business activity, employment, and tax revenues.
Leistritz, F. Larry, Coon, Randal C.
core  

Peak fitting diagram of nitrogen in lignite.

open access: yes, 2023
Mastering the molecular structure of coal is important for the effective utilization of coal. For a detailed study of the microstructural characteristics of Tiebei lignite, its molecular structure was characterized by elemental analysis, solid 13C ...
Jinzhang Jia (9647878)   +5 more
core   +1 more source

Understanding the paleomires of Eocene lignites of Kachchh Basin, Gujarat (Western India): petrological implications

open access: yesInternational Journal of Coal Science & Technology, 2017
The present paper entails the results of the investigations carried out on the lignite deposits of Kachchh Basin. The lignite samples were drawn from five lignite seams from Panandhro lignite field (Seam-I to -V) and eight lignite seams (Seam-I to -VIII)
Prakash K. Singh   +3 more
doaj   +1 more source

Ecological variability of Hippopotamus antiquus from the late Early–Middle Pleistocene of Megalopolis Basin (Greece): Evidence for dynamic habitats in a glacial microrefugium

open access: yesBoreas, EarlyView.
This study investigates the ecology of the extinct European Hippopotamus from the late Early–Middle Pleistocene (c. 900–400 ka) sequence of the Megalopolis Basin, a glacial microrefugium for temperate taxa in southern Greece. Using stable carbon (δ13C) and oxygen (δ18O) isotope analyses and microwear analyses of Hippopotamus dental elements, we ...
Effrosyni Roditi   +9 more
wiley   +1 more source

NORTH DAKOTA LIGNITE ENERGY INDUSTRY'S CONTRIBUTION TO THE STATE ECONOMY FOR 2001 AND PROJECTED FOR 2002 [PDF]

open access: yes
This report provides estimates of the lignite industry's contribution to the North Dakota economy, using key economic indicators such as retail trade activity, personal income, total business activity, employment, and tax revenues.
Leistritz, F. Larry, Coon, Randal C.
core  

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