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♦️ولکانیزاسیون: پرمصرف‌ترین و معمول‌ترین عامل ولکانش، گوگرد می‌باشد که با اکثر لاستیک‌های سیرنشده وارد واکنش شده و تولید فراورده ولکانیده می‌کند. گوگرد به دو آرایش رومبیک و بی‌شکل وجود دارد. دو عنصر سلنیم و تلوریم نیز قادر هستند محصولات ولکانیده تولید کنند. سلنیم و تلوریم در جایی‌که مقاومت گرمایی عالی مورد نیاز است جایگزین گوگرد می‌شوند. این مواد زمان پخت (ولکانش) را کاهش داده و خواص فراورده را بهبود می‌بخشند. @materials_parspajouhaan
♦️ولکانیزاسیون: پرمصرف‌ترین و معمول‌ترین عامل ولکانش، گوگرد می‌باشد که با اکثر لاستیک‌های سیرنشده وارد واکنش شده و تولید فراورده ولکانیده می‌کند. گوگرد به دو آرایش رومبیک و بی‌شکل وجود دارد. دو عنصر سلنیم و تلوریم نیز قادر هستند محصولات ولکانیده تولید کنند. سلنیم و تلوریم در جایی‌که مقاومت گرمایی عالی مورد نیاز است جایگزین گوگرد می‌شوند. این مواد زمان پخت (ولکانش) را کاهش داده و خواص فراورده را بهبود می‌بخشند. @materials_parspajouhaan
Recently, Durav wrote on his Telegram channel that users' right to privacy, in light of the war in Ukraine, is "sacred, now more than ever." At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. Despite Telegram's origins, its approach to users' security has privacy advocates worried. DFR Lab sent the image through Microsoft Azure's Face Verification program and found that it was "highly unlikely" that the person in the second photo was the same as the first woman. The fact-checker Logically AI also found the claim to be false. The woman, Olena Kurilo, was also captured in a video after the airstrike and shown to have the injuries. At the start of 2018, the company attempted to launch an Initial Coin Offering (ICO) which would enable it to enable payments (and earn the cash that comes from doing so). The initial signals were promising, especially given Telegram’s user base is already fairly crypto-savvy. It raised an initial tranche of cash – worth more than a billion dollars – to help develop the coin before opening sales to the public. Unfortunately, third-party sales of coins bought in those initial fundraising rounds raised the ire of the SEC, which brought the hammer down on the whole operation. In 2020, officials ordered Telegram to pay a fine of $18.5 million and hand back much of the cash that it had raised.
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