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Polybutadiene [butadiene rubber, BR] is a synthetic rubber. It offers high elasticity, high resistance to wear, good strength even without fillers, and excellent abrasion resistance when filled and vulcanized. "Polybutadiene" is a collective name for homopolymers formed from the polymerization of the monomer 1,3-butadiene.
For example, HTPB is used in all 3/4 stages of the Japanese M-5 launch vehicles and in 1/3 stages of Indian PSLV launch vehicle. JAXA describes the propellant as "HTPB/AP/Al=12/68/20", which means, proportioned by mass, HTPB plus curative 12% (binder and fuel), ammonium perchlorate 68% (oxidizer), and aluminum powder 20% (fuel).
A 7.5 Mww earthquake strikes the western coast of Japan (Noto Peninsula), killing at least 504 people and injuring 1,389 others. [27] [28] A further 5 are killed the next day when a Coast Guard aircraft carrying humanitarian aid was involved in a collision with a Japan Airlines Airbus A350-900 aircraft, destroying both aircraft. All 379 people ...
He also attended the CEO Roundtable Forum and succeeded in bringing an investment commitment of 8.5 billion US dollars. [19] United Arab Emirates: Abu Dhabi: 23 November Prabowo held a bilateral meeting with President of the United Arab Emirates Mohamed bin Zayed Al Nahyan in Abu Dhabi. [20] 2 Egypt: Cairo: 17–19 December
Over 5.7 million poll workers and volunteers (Kelompok Penyelenggara Pemungut Suara/KPPS) served at the polling stations in Indonesia and abroad. Due to concerns over deaths of KPPS staff in the 2019 election , KPU added rules in 2024 limiting their age to between 17 and 55, in addition to providing proof of good health. [ 121 ]
The results showed that 82.6% of Indonesia's population in Underdeveloped Areas (3T Regions) are already connected to the Internet, a figure reaching 8,114,272 people. [133] [134] 18 September – A magnitude 5.0 earthquake strikes Kertasari, Bandung Regency. At least two people are killed and more than 100 are injured, while approximately ...
Presidential elections were held in the United States on November 5, 2024. [a] The Republican Party's ticket—Donald Trump, who was the 45th president of the United States from 2017 to 2021, and JD Vance, the junior U.S. senator from Ohio—defeated the Democratic Party's ticket—Kamala Harris, the incumbent vice president, and Tim Walz, the 41st governor of Minnesota.
The Ministry of Environment is led by a Minister of Environment who also serves as Head of the Environmental Control Agency, which since October 21, 2024 has been held by Hanif Faisol Nurofiq. History