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ZSM-5, Zeolite Socony Mobil–5 (framework type MFI from ZS M -5 ( fi ve)), is an aluminosilicate zeolite belonging to the pentasil family of zeolites. Its chemical formula is Na n Al n Si 96–n O 192 ·16H 2 O (0<n<27). Patented by Mobil Oil Company in 1975, [1] it is widely used in the petroleum industry as a heterogeneous catalyst for ...
Aircraft. The aircraft, a Convair 340 registered ZS-BRV, was originally delivered to the United States Air Force (USAF) in 1954 as a C-131D. It was retired from USAF service in 1987 and was stored for five years before its conversion for civilian use and operation by several companies, eventually being acquired by Rovos Air (the aviation division of South African rail operator Rovos Rail ...
South African Airways Flight 228 was a scheduled flight of the Boeing 707-320C Pretoria, registration ZS-EUW, from Jan Smuts International Airport, Johannesburg, to Heathrow Airport via Windhoek, Luanda, Las Palmas, and Frankfurt. Flight 228 was piloted by Captain Eric Ray Smith (49), with First Officer John Peter Holliday (34), Relief First ...
Part of a series on Social generations of the Western world Lost Generation Greatest Generation Silent Generation Baby boomers Generation X Millennials Generation Z Generation Alpha Generation Z (often shortened to Gen Z), colloquially known as Zoomers, is the demographic cohort succeeding Millennials and preceding Generation Alpha. Researchers and popular media use the mid-to-late 1990s as ...
t. e. Second-language acquisition ( SLA ), sometimes called second-language learning —otherwise referred to as L2 ( language 2) acquisition, is the process by which people learn a second language. Second-language acquisition is also the scientific discipline devoted to studying that process.
A learning curve is a graphical representation of the relationship between how proficient people are at a task and the amount of experience they have. Proficiency (measured on the vertical axis) usually increases with increased experience (the horizontal axis), that is to say, the more someone, groups, companies or industries perform a task ...
History. Indegene was founded in 1998 by Dr. Rajesh Nair, Manish Gupta, Gaurav Kapoor, Dr.Sanjay Parikh and Anand Kiran. Indegene's first acquisition was Medsn, a company that provided medical education.
The South African Radio League (SARL), formerly known as the South African Radio Relay League (SARRL), is a non-profit organisation representing the interests of amateur radio enthusiasts in South Africa.