👆 В качестве примера показан экситон, фотовозбужденный в материале донора, который диффундирует к гетеропереходу (граница между донором и акцептором), где диссоциирует на свободные электроны и дырки, которые движутся соответственно по фазе акцептора к катоду и по фазе донора к аноду СЭ.
👆 В качестве примера показан экситон, фотовозбужденный в материале донора, который диффундирует к гетеропереходу (граница между донором и акцептором), где диссоциирует на свободные электроны и дырки, которые движутся соответственно по фазе акцептора к катоду и по фазе донора к аноду СЭ.
One thing that Telegram now offers to all users is the ability to “disappear” messages or set remote deletion deadlines. That enables users to have much more control over how long people can access what you’re sending them. Given that Russian law enforcement officials are reportedly (via Insider) stopping people in the street and demanding to read their text messages, this could be vital to protect individuals from reprisals. "Someone posing as a Ukrainian citizen just joins the chat and starts spreading misinformation, or gathers data, like the location of shelters," Tsekhanovska said, noting how false messages have urged Ukrainians to turn off their phones at a specific time of night, citing cybersafety. "He has kind of an old-school cyber-libertarian world view where technology is there to set you free," Maréchal said. The last couple days have exemplified that uncertainty. On Thursday, news emerged that talks in Turkey between the Russia and Ukraine yielded no positive result. But on Friday, Reuters reported that Russian President Vladimir Putin said there had been some “positive shifts” in talks between the two sides. Soloviev also promoted the channel in a post he shared on his own Telegram, which has 580,000 followers. The post recommended his viewers subscribe to "War on Fakes" in a time of fake news.
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