China is the biggest coal country. However, China's power industry relies heavily on fossil energy, which seriously threatens energy security. It unreasonable to use current price as a benchmark for parity. At present has not accounted various emissions tax and resource tax. so authentic parity must be fully included in costs environmental costs. Fair pricing primary prerequisite Nowadays obsta...

Impulsive loads and walking loads can generate problematic structural vibrations in flooring-systems. Measures that may be taken to mitigate the problem would often be to consider the implementation of a tuned mass damper or even more advanced vibration control technologies; this in order to add damping to the structure. Basically also passive humans on a floor act as a damping source, but it a...

rarguments, specifications can be provided. People become buried under the overload of materials and duties they can not cope with and frustrations will not decrease compared to the present habitual system, but may even increase. 2. The NBS system is basically a system capable of offering a quantitative data on the publishing affairs and activities of access to and use of the papers included in...