Due to the increasing efforts on saving our natural environment a change in the structure of energy resources can be observed an increasing fraction of a renewable energy sources. In many countries traditional underground coal mining loses its significance but there are still countries, like Poland or Germany, in which the coal based technologies have the greatest fraction in a total energy pro...

The London Underground is one of Britain’s most st ri ke-prone industries, with the threat and use of strike action by the National Union of Rail Maritime and Transport Workers (RMT) a persistent feature of industrial relations during the past 10-15 years. Thus on a number of occasions st ri kes have paralysed sections of the tube network, inconvenienced up to 3 million commuters and caused mil...

The underground commoditization of compromised hosts suggests a tacit capability where miscreants leverage the same machine—subscribed by multiple criminal ventures—to simultaneously profit from spam, fake account registration, malicious hosting, and other forms of automated abuse. To expedite the detection of these commonly abusive hosts, there are now multiple industrywide efforts that aggreg...

i n the past decades, the effect of different tax amendments on various economic issues has been studied. the majority of these studies have avoided considering shadow economy as part of the calculation and analysis, and an issue, which has received little attention, is the relationship between green tax reforms and shadow economy, as for informal labor, which is well-connected to unemployment ...

Measurement of an economic indicator or phenomenon starts by defining it first and determining its components. Tax evasion as a component the underground economy is that hard to be observed estimated because hidden nature. To able compare figures for tax from different countries, there need definition internationally accepted. This paper aims make literature review on find widely In this area, ...

This work presents the UCGVision system designed for underground coal gasification process visualization, prediction, and monitoring. The possibility to visualize the ongoing reactions during the process is crucial for better insight into the process itself. Moreover, the system task is to give researchers and in the future process supervisor a tool to observe the current state of the process b...