Search results
Results from the WOW.Com Content Network
Isobutylene (or 2-methylpropene) is a hydrocarbon with the chemical formula (CH 3) 2 C=CH 2. It is a four-carbon branched alkene (olefin), one of the four isomers of butylene . It is a colorless flammable gas, and is of considerable industrial value.
October 14 – Miss Earth Vietnam 2023 held in Ho Chi Minh City From October 20 – COVID-19 is no longer a particularly dangerous infectious disease (group A) October 29 – Decision 3983/QD-BYT, annulling 160 documents on COVID-19 epidemic prevention and control issued by the Ministry of Health , takes effect
Isobutylene can be produced through a variety of methods. n-butane can be isomerized into isobutane which can be dehydrogenated to isobutylene. [7] In the Halcon process, t-Butyl hydroperoxide derived from isobutane oxygenation is treated with propylene to produce propylene oxide and t-butanol. The t-butanol can be dehydrated to isobutylene.
15 February – Vietnam lifts its COVID-19-related curbs on international passenger flights with no limitation on the number of flights in order to restore the travel to pre-pandemic level. [ 2 ] 6 September – A karaoke bar fire near Ho Chi Minh City kills at least 32 people.
Dầu Tiếng is a rural district of Bình Dương province in the Southeast region of Vietnam. As of 2003, the district had a population of 92,592. [1] The district covers an area of 720 km 2. The district capital lies at Dầu Tiếng township. [1] The district had a base with the same name during the war in Vietnam.
The university's notable alumni are some of Vietnam's leading politicians: - Mr. Truong Tan Sang (President of the Socialist Republic of Vietnam, 2011–2016 tenure), - Ms. Truong My Hoa (Vice President of the Socialist Republic of Vietnam, 2022–2007 tenure), - Ms. Dang Thi Ngoc Thinh (Vice President of the Socialist Republic of Vietnam, 9/ ...
Vice President Võ Thị Ánh Xuân served as acting president of Vietnam twice, in 2023 and 2024. [ a ] Her predecessor, Đặng Thị Ngọc Thịnh , was the first woman in Vietnamese history to assume the (acting) presidency following the death of President Trần Đại Quang in 2018.
In 2020-2021, TDTU's rank was 639. In 2021-2022, TDTU's rank was 427. In 2022-2023, TDTU's rank was 435. In 2021-2022, TDTU's rank was 427. In August 2022, TDTU was ranked 601-700 by the Academic Ranking of World Universities (ARWU), known as Shanghai Ranking, which increased from the place of 901–1000 in 2019. In 2020, TDTU was ranked 701-800.