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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 ...
www.zs.com. ZS Associates is a management consulting and professional services firm focusing on consulting, software, and technology, headquartered in Evanston, Illinois that provides services for clients in healthcare, private equity, and technology. The firm was founded in 1983 by two professors at Northwestern University who developed sales ...
v. t. e. Generation Z (often shortened to Gen Z ), colloquially known as Zoomers, [1] [2] [3] is the demographic cohort succeeding Millennials and preceding Generation Alpha. Researchers and popular media use the mid-to-late 1990s as starting birth years and the early 2010s as ending birth years.
Generation Z (or Gen Z for short), colloquially known as Zoomers, is the demographic cohort succeeding Millennials and preceding Generation Alpha.. Members of Generation Z were born between the mid-to-late 1990s and early 2010s, meaning the first wave came of age during the second decade of the twenty-first century, a time of significant demographic change due to fertility differentials and ...
HB-Axx two-engined aircraft from 5.7 to 15 tons, Aircraft over 15 tons due to shortage of Jxx. HB-Bxx balloons; HB-Cxx single-engined Cessnas under 5.7 tons; HB-Dxx and HB-Kxx other single-engined aircraft under 5.7 tons; HB-Fxx Swiss-produced aircraft like PC-6 and PC-12; HB-Ixx and HB-Jxx aircraft over 15 tons, including DC-3
Aircraft and crew The aircraft involved was a Boeing 747-244BM Combi registered ZS-SAS and named Helderberg. This was the 488th built 747, made its first flight on 12 November 1980 and was delivered to South African Airways (SAA) on 24 November 1980. The Boeing 747-200B Combi model permits the mixing of passengers and cargo on the main deck according to load factors on any given route and ...
A learning management system ( LMS) or virtual learning environment ( VLE) is a software application for the administration, documentation, tracking, reporting, automation, and delivery of educational courses, training programs, materials or learning and development programs. [1] The learning management system concept emerged directly from e ...
20 October 1957 – A Vickers Viscount G-AOYF, operated by Vickers on a test flight, was damaged beyond economic repair when the starboard undercarriage collapsed following a heavy landing. [139] 22 September 1972 — A Beech 18 operated by United Air crashed 12 km (7.4m) N of JNB while attempting to land back at Johannesburg.