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Stainless steel, also known as inox, corrosion-resistant steel (CRES), and rustless steel, is an iron-based alloy containing a minimum level of chromium that is resistant to rusting and corrosion. Stainless steel's resistance to corrosion results from the 10.5%, or more, chromium content which forms a passive film that can protect the material ...
The Tsingshan Holdings Group (Chinese: 青山控股, ching-shan) is a Chinese private company active in the stainless steel and nickel industry. Xiang Guangda in 2017. Tsingshan Holdings was founded in 1988 by Xiang Guangda in Wenzhou. [2] It moved into the Indonesian nickel industry in 2009. [3] Among its assets are:
Food in a refrigerator with its door open. A refrigerator, commonly shortened to fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so that its inside is cooled to a temperature below the room temperature. [1]
The Einstein–Szilard or Einstein refrigerator is an absorption refrigerator which has no moving parts, operates at constant pressure, and requires only a heat source to operate. It was jointly invented in 1926 by Albert Einstein and his former student Leó Szilárd , who patented it in the U.S. on November 11, 1930 ( U.S. patent 1,781,541 ).
Common absorption refrigerators use a refrigerant with a very low boiling point (less than −18 °C (0 °F)) just like compressor refrigerators.Compression refrigerators typically use an HCFC or HFC, while absorption refrigerators typically use ammonia or water and need at least a second fluid able to absorb the coolant, the absorbent, respectively water (for ammonia) or brine (for water).
Medan (/ m ɛ ˈ d ɑː n / meh-DAHN, Indonesian: ⓘ) is the capital and largest city of the Indonesian province of North Sumatra. [7] The nearby Strait of Malacca, Port of Belawan, and Kualanamu International Airport make Medan a regional hub and multicultural metropolis, acting as a financial centre for Sumatra and a gateway to the western part of Indonesia.
Refrigerators based on the magnetocaloric effect have been demonstrated in laboratories, using magnetic fields starting at 0.6 T up to 10 T. Magnetic fields above 2 T are difficult to produce with permanent magnets and are produced by a superconducting magnet (1 T is about 20.000 times the Earth's magnetic field).
North Sumatra (Indonesian: Sumatera Utara [5]), also called North Sumatra Province, is a province of Indonesia located in the northern part of the island of Sumatra.Its capital and largest city is Medan on the east coast of the island.
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