Magnetostratigraphy of the Hell Creek and lower Fort Union formations in northeast Montana [PDF]
, 2010 Magnetostratigraphic evaluation of a well-exposed stratigraphic section in northeast Montana has been undertaken to expand upon and better understand the timing of the deposition of Hell Creek and Fort Union Formations.
LeCain, Rebecca
core +2 more sources
A STATISTICAL ANALYSIS OF THE NORTH DAKOTA LIGNITE ENERGY INDUSTRY'S CONTRIBUTION TO THE STATE ECONOMY FOR 1997 AND PROJECTED FOR 1998 [PDF]
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.
Coon, Randal C., Leistritz, F. Larry
core +1 more source
Molecular study of lipids in humic acids by sequential chemical degradation [PDF]
, 2009 Lipidy v půdě vykazují poměrně vysokou resistenci k biodegradaci, mohou proto tak zajistit informace o zdrojích organické hmoty a diagenetických procesech. Půdní organická hmota je vysoce heterogenní a vyskytují se v ní různé dynamické systémy.
Bachratá, Radka
core
NORTH DAKOTA LIGNITE ENERGY INDUSTRY'S CONTRIBUTION TO THE STATE ECONOMY FOR 2003 AND PROJECTED FOR 2004 [PDF]
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.
Coon, Randal C., Leistritz, F. Larry
core +1 more source
Physical Fitness in Lignite Miners.
INDUSTRIAL HEALTH, 1994 The purpose of this study was to determine physical fitness level of lignite miners in the Czech Republic. The authors have examined a representative group of 152 active lignite miners by bicycle spiroergometry. The duration of employment in coal mines ranged between 5 and 32 years. The average age was 43.1 +/- 4.7 years. The miners had an average peak
Petr Brhel +3 more
openaire +4 more sources
Geological peculiarities from the Konin Lignite Mine, central Poland: An overview
GeologosThe 80th anniversary (1945–2025) of the Konin Lignite Mine (KLM) invites some summaries of the mine’s characteristics. Therefore, the current study is devoted to rocks/sediments and tectonic or sedimentary structures that were observed and examined in ...
Wachocki Robert +6 more
doaj +1 more source
Effect of hydrothermal treatment on the carbon structure of Inner Mongolia lignite
International Journal of Coal Science & Technology, 2020 Understanding the structural properties of lignite during hydrothermal treatment would aid in predicting the subsequent behavior of coal during the pyrolysis, liquefaction, and gasification processes.
Peng Liu, Dexiang Zhang
doaj +1 more source
Lignite price negotiation between opencast mine and power plant as a two-stage, two-person, cooperative, non-zero sum game [PDF]
Based on the simple model of the deposit the methodology of finding the optimal solution for bilateral monopoly (BM) of lignite mine and power plant is shown taking into account pit optimisation.
Jurdziak, Leszek
core +1 more source
Current state-of-the-art in drying low-rank coals [PDF]
, 1976 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.
core
Sulfur analysis of Bolu-Mengen lignite before and after microbiological treatment using reductive pyrolysis and gas chromatography/mass spectrometry [PDF]
, 2005 Atmospheric pressure-temperature programmed reduction coupled with on-line mass spectrometry (AP-TPR/MS) is used for the first time on microbiologically treated coal samples as a technique to monitor the degree of desulfurization of the various sulfur ...
Bozdemir T. +27 more
core +1 more source