X - rays are a byproduct of high - energy electron discharges in the sun , in exploding stars , and even in lightning . many scientists did not expect sparks alone to do the trick X射線是太陽爆炸星體甚至閃電中的高能電子放電帶來的副產(chǎn)品,很多科學(xué)家并不認(rèn)為電火花獨(dú)自也能產(chǎn)生出這種射線。
Sparks created in a lab give off x - rays , scientists announced monday . x - rays are a byproduct of high - energy electron discharges in the sun , in exploding stars , and even in lightning X射線是太陽爆炸星體甚至閃電中的高能電子放電帶來的副產(chǎn)品,很多科學(xué)家并不認(rèn)為電火花獨(dú)自也能產(chǎn)生出這種射線。
Sem and tem analysis show that the sample co - doped by nickel and titanium has nano - pellets with morpha like snow and great surface , which the initial discharge capacities in organic electrolyte reached 155 . 8mah / g and which were more than theoretic one farad electron discharge capacities ( 148mah / g ) . during the charging and discharging cycle , the change rate of the crystal volume was only 0 . 233 % and the sample showed long cycle life 樣品在有機(jī)電解液的初始電容量( 155 . 8mah / g )大于理論1f電子放電容量( 148mah / g ) ,通過充放電前后xrd衍射圖顯示,放電前后晶胞體積變化僅為0 . 233 ,樣品循環(huán)性能好。