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R41 Road (South Africa)
R41 may refer to: * R41 (South Africa), a road * Fluoromethane, a refrigerant * , a destroyer of the Royal Navy * Junkers R41, a German trainer aircraft * R41: Risk of serious damage to eyes, a risk phrase * Small nucleolar RNA R41 {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
R41 (South Africa)
The R41 is a provincial route (South Africa), provincial route in Gauteng, South Africa, that connects Johannesburg with Randfontein via Roodepoort. Route The R41 route begins in the Newtown, Johannesburg, Newtown suburb of Johannesburg, at an intersection with the two one-way-streets of the R24 (South Africa), R24 route (Albertina Sisulu Road and Commissioner Street (Johannesburg), Commissioner Street). The route begins by going west-south-west, named Main Reef Road and meeting the western end of the R29 (South Africa), R29 Route. South-west of the city centre, in the suburb of Crown, Gauteng, Crown (adjacent to Selby, Johannesburg, Selby), the R41 meets the western end of the M2 (Johannesburg), M2 Johannesburg-Germiston Highway (Francois Oberholzer Freeway), meets the M17 (Johannesburg), M17 Road of Johannesburg and continues west, bypassing various Chinese marts and shopping centres in the area. North of the Riverlea Suburb, the R41 meets Johannesburg's M5 road (Johannesburg), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fluoromethane
Fluoromethane, also known as methyl fluoride, Freon 41, Halocarbon-41 and HFC-41, is a non-toxic, liquefiable, and flammable gas at standard temperature and pressure. It is made of carbon, hydrogen, and fluorine. The name stems from the fact that it is methane (CH4) with a fluorine atom substituted for one of the hydrogen atoms. It is used in semiconductor manufacturing processes as an etching gas in plasma etch reactors. Composition The compound is the lowest mass member of the hydrofluorocarbon (HFC) family, compounds which contain only hydrogen, fluorine, and carbon. These compounds are related to the chlorofluorocarbons (CFC), but since they do not contain chlorine, are not destructive to the ozone layer. Fluorocarbons are, however, potent greenhouse gasses, and the Kigali Amendment to the Montreal Protocol is an attempt to phase them out due to their contribution to global warming. The C−F bond energy is 552 kJ/mol and its length is 0.139 nm (typically 0.14 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Junkers R41
Junkers A 35 was a two-seater cantilever monoplane, used for postal, training and military purposes. The aircraft was designed in the 1920s by Junkers in Germany and manufactured at Dessau and by AB Flygindustri in Limhamn, Sweden and conversions from A 20s were made in Fili, Russia. Design and development The A 35 was a development of a series of Junkers aircraft from 1918, starting with the J10/J11, the A 20, A 25, A 32, and finally the A 35. It was originally intended as a two-seat multi-purpose fighter aircraft and made its first flight in 1926. Due to the post-war restrictions, Hugo Junkers and the Soviet Government signed a contract about the setup of an aircraft facility at Fili in Russia in December 1922. In 1926, the first Junkers L5 engines were mounted on the Junkers A 20s. With some further tail modifications the new aircraft was designated as A 35. A total of 24 aircraft were originally built as A 35s. A number of A 20s and A 25s were also modified with the Junker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Risk Of Serious Damage To Eyes
In simple terms, risk is the possibility of something bad happening. Risk involves uncertainty about the effects/implications of an activity with respect to something that humans value (such as health, well-being, wealth, property or the environment), often focusing on negative, undesirable consequences. Many different definitions have been proposed. The international standard definition of risk for common understanding in different applications is “effect of uncertainty on objectives”. The understanding of risk, the methods of assessment and management, the descriptions of risk and even the definitions of risk differ in different practice areas (business, economics, environment, finance, information technology, health, insurance, safety, security etc). This article provides links to more detailed articles on these areas. The international standard for risk management, ISO 31000, provides principles and generic guidelines on managing risks faced by organizations. Defi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
