The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Problematyka zwiększenia efektywności odmetanowania w środowisku eksploatowanych ścian wymusza niejako wcześniejsze podejmowanie obliczeń wentylacyjno-metanowych na etapie projektowania ścian. W artykule przedstawiono macierzową metodę prognozowania efektywności odmetanowania. Prognozowane wartości efektywności odmetanowania dla projektowanych etapów wybiegu ściany przy zakładanym postępie mają kluczowe...
The prediction of methane emissions to the longwall environment carried out at the design stage May include subjective errors resulting from the underestimation of input values for calculations and in particular, methane saturation of underlying and overlying seams, their thickness and distance from the mined seam. The method of a short-term prediction of methane emissions to the longwall environment...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.