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Since 2022, Russia-Ukraine geopolitical conflicts have intensified, and global energy prices have risen sharply, with international natural gas prices hitting historic highs. As the most important transitional energy source in the transition from fos…
US nanotechnology plan for research and development The US investment is equivalent to the amount invested by Japan and EU countries in the research and development of Nanotechnology. This field is equivalent to the investment of Japan and EU countri…
The properties of the cellular concrete are strongly influenced by the type of foaming agent used.…