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For health reasons it is crucial to breathe clean air, free from chemicals and toxicants as much as possible. It is estimated that humans spend approximately 90% of their lifetime indoors [8] and that indoor air pollution in some places can be much worse than that of the ambient air.
Air pollution is the presence of substances in the atmosphere that are harmful to humans and other living beings, or cause damage to the environment. Air pollution can be chemical, physical or biological. [1]
Blue light is scattered more than other wavelengths by the gases in the atmosphere, surrounding Earth in a visibly blue layer at the stratosphere, above the clouds of the troposphere, when seen from space on board the ISS at an altitude of 335 km (208 mi) (the Moon is visible as a crescent in the far background).
The name of the airport was reported to be a suggestion from the people of Karo to the government and later granted by the Ministry of Transportation. [6] The name consists of two words: 'Kuala,' a Malay and Indonesian word for 'river mouth;' [7] and 'Namu' or 'Namo,' the Karonese for 'deep sea.' [8] Thus, 'Kualanamu' means 'meeting point.' [6] Kualanamu is one of the very few airports in the ...
Bandara Internasional Lombok (BIL) had several operational names proposed. In January 2009 results of a public opinion poll conducted in Lombok indicated that Lombok International Airport (LIA) was chosen by 40.4% of respondents, Sasak International Airport (SIA) 20%, Rinjani International Airport (RIA) 46 16.7%, Mandalika the International Airport (MIA) 10.9%, Selaparang International Airport ...
The National Air Defense Forces Command was established on 9 February 1962 as the air defense division of that operation commanded by AVM H.M.Sujono on the basis of the TNI Joint Service Air Defense Command (Komando Pertahanan Udara Gabungan APRI) whose commander for Papuan air force operations was Colonel Leo Wattimena of the Air Force.
Royal Malaysia Police Air Operations Force or Pasukan Gerakan Udara (PGU) is a special aviation unit of Royal Malaysia Police. This unit operates both fixed wing aircraft and helicopter. Currently the aircraft of the PGU consist of Cessna Caravan, Pilatus PC6 Porter and Beechcraft King Air for fixed wing aircraft and Eurocopter AS355s and ...
The dual combustion cycle (also known as the mixed cycle, Trinkler cycle, Seiliger cycle or Sabathe cycle) is a thermal cycle that is a combination of the Otto cycle and the Diesel cycle, first introduced by Russian-German engineer Gustav Trinkler, who never claimed to have developed the cycle himself. [1]