Kilogram Of Matter Research Articles

No Matter - How?: Dealing with Matter-less Stressors in LCA of Wind Energy Systems

Summary The portfolio of impacts that are quantified in life cycle assessment (LCA) has grown to include rather different stressors than those that were the focus of early LCAs. Some of the newest life cycle impact assessment (LCIA) models are still in an early phase of development and have not yet been included in any LCA study. This is the case for sound emissions and noise impacts, which have been only recently modeled. Sound emissions are matter-less, time dependent, and bound to the physical properties of waves. The way sound emissions and the relative noise impacts are modeled in LCA can show how new or existing matter-less impacts can be addressed. In this study, we analyze, through the example of sound emissions, the specific features of a matter-less impact that does not stem from the use of a kilogram of matter, nor is related to the emission of a kilogram of matter. We take as a case study the production of energy by means of wind turbines, contradicting the commonly held assumption that windmills have no emissions during use. We show how to account for sound emissions in the life cycle inventory phase of the life cycle of a wind turbine and then calculate the relative impacts using a noise LCIA model.

IMPLIKASI TERBITNYA REGULASI TENTANG PERTIMAHAN TERHADAP DINAMIKA PERTAMBANGAN TIMAH INKONVENSIONAL DI PULAU BANGKA

Implication of the publication of the regulation of dynamics of tin mining on Bangka Island, it is most clearly visible are the rise of tin mining unconventional. The Central Government controls over commodities lead is so strong that they use their hands to do military protection. The local community is prohibited to mine, sell, even save them even one kilogram of matter. This condition is a precondition for the emergence of dissharmonsation in the management of lead in this area. Last issue about the rules of tin mining this regulation until now has never been resolved. So in a forum, all conflicts that erupted about tin mining will stop when the tin islands of Bangka Belitung Province have been exhausted.

'Ultimate PC' Would Be a Hot Little Number

A physicist has used the laws of thermodynamics, information, relativity, and quantum mechanics to figure out the ultimate physical limits on the speed of a computer. His calculations show that, in principle, a kilogram of matter in a liter-sized container could be an "ultimate laptop" more than a trillion trillion trillion times as powerful as today's fastest supercomputer--if it could be turned into a black hole.