Search Results

You are looking at 1 - 4 of 4 items for :

  • Industrial Chemistry, other x
Clear All
Open access

Nikodem Szlązak and Marek Korzec

Abstract

Methane has a bad influence on safety in underground mines as it is emitted to the air during mining works. Appropriate identification of methane hazard is essential to determining methane hazard prevention methods, ventilation systems and methane drainage systems. Methane hazard is identified while roadways are driven and boreholes are drilled. Coalbed methane content is one of the parameters which is used to assess this threat. This is a requirement according to the Decree of the Minister of Economy dated 28 June 2002 on work safety and hygiene, operation and special firefighting protection in underground mines. For this purpose a new method for determining coalbed methane content in underground coal mines has been developed. This method consists of two stages - collecting samples in a mine and testing the sample in the laboratory. The stage of determining methane content in a coal sample in a laboratory is essential. This article presents the estimation of measurement uncertainty of determining methane content in a coal sample according to this methodology.

Open access

Henryk R. Parzentny and Leokadia Róg

Policy Journal, Vol. 17, p. 77- 89. Swanson V.E., Huffman C., 1976. Guidelines for sample collecting and analytical methods used in U.S. Geological Survey for determining chemical composition of coal. Geological Survey Circular, Nr 735. Szczygieł Ł., 2009. Medyczne zastosowania związków bizmutu. Gazeta Farmaceutyczna, Vol. 4, p. 36-38. Vogt O., Ogonowski J., Litawa B., 2008. Wpływ właściwości kwasowo-zasadowych i redukowalności katalizatorów Bo- Si-O modyfikowanych wybranymi jonami metali na ich aktywność w procesie OCM

Open access

Fereydoun Sharifi, Ali Reza Arab-Amiri, Abolghasem Kamkar-Rouhani, Mahyar Yousefi and Meysam Davoodabadi-Farahani

Imaging for Groundwater . Wiley-ISTE. Loke M.H., 2001. Tutorial: 2-D and 3-D electrical imaging surveys . Course Notes for USGS Workshop. Mabee S.B., Hardcastle K.C., Wise D.W., 1994. A method of collecting and analyzing lineaments for regionalscale fractured bedrock aquifer studies . Ground Water. 32, 884-894. Mabee S.D., 1999, Factors Influencing Well Productivity in Glaciated Metamorphic Rocks . Ground Water. 37 (1), 88-97. Maiti S., Erram V.C., Gupta G., Tiwari R.K., 2012. ANN based inversion of DC resistivity data for groundwater

Open access

Luboš Smutný, Šárka Smutná, Jana Kindlová, Miloslav Šoch, Václav Škeřík and Luboš Zábranský

Abstract

up to date information systems collect data from technological process, facts about production, reproduction and health of animals. On the base of all figures of these measurable values and evaluation of observable characteristics we can do the classification of the total rate of animal welfare. Physical activity of animals is affected by many factors during the day, especially satisfying basic needs, i.e. feed intake, social manifestations, etc. Vitalimeter is recording physical activity of the animal, including the type of movement, standing and lying time, number of leap.