Anaerobic digestion produces biogas which usually contains 60-70% of methane (CH4), 30-40% of carbon-di-oxide (CO2), and 10-2,000 ppm hydrogen sulfide (H2S).The concentration of H2S depends upon the type of substrate.H2S tends to corrode pipes and machines carrying them.The high concentrations of MINI FLEXIBLE VENT BRUSH H2S present in biogas may a
The article provides an analysis of the persecution measures against the Roma in Nazi Germany, identifying what measures were taken and, TIG Torch Pyrex Cup in particular, what tragic consequences they led to on a practical level.The article comparatively analyzes various aspects of the persecution of Roma in Germany, and indeed throughout Europe,
In mobile ad hoc networks, limited energy resources and traffic congestion at the nodes are crucial issues due to the nodes being battery operated and flooding the network with packets, respectively.These issues degrade Anello network routing performance in terms of quality of service.In this study, we proposed a contention window and residual batt
During a routine analysis of whistlers on the wide-band VLF recording of the DEMETER satellite, a specific signal structure of numerous fractional-hop whistlers, termed the "Spiky Whistler" (SpW) was identified.These signals appear to be Candles composed of a conventional whistler combined by the compound mode-patterns of guided wave propagation, s