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SK Group
SK Group () is a South Korean multinational manufacturing and services conglomerate headquartered in Seoul. A chaebol (Korean family-owned conglomerate), SK Group is the second largest such conglomerate by revenue in South Korea, after Samsung Group. Through a number of subsidiaries, it is engaged in various businesses, including manufacture of chemicals and petrochemicals, semiconductors, flash memory and miscellaneous information technology, as well providing telecommunications services worldwide among its other less notable ventures. The conglomerate is composed of 186 subsidiaries and affiliates that share the SK brand name and the group's management culture, named SKMS (SK Management System). It changed its name from Sunkyong Group () to SK Group in 1998. The group is controlled by estate of Chey Tae-won through a holding company, SK Inc. The cornerstone of SK Group is its energy and chemicals division. History Formation and early production As with many other chaebo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SK Logo
SK may refer to: People * SK (actor) or Sivakarthikeyan, Indian actor * Salman Khan or SK, Indian actor * Shahram Kashani (SK), an Iranian-American singer * Shakib Khan, Bangladeshi film actor, known by the initialism SK * Søren Kierkegaard, Danish philosopher and theologian Businesses and organizations * SK Foods, an American agribusiness company * SK Hand Tools, an American tool manufacturer * Sangguniang Kabataan, Philippines youth councils * SK Group, South Korean conglomerate * Scandinavian Airlines (IATA code SK) * Silicon Knights, a Canadian video game developer Places Slovakia * Slovakia (ISO country code) ** ISO 3166-2:SK, codes for the regions of Slovakia ** .sk, the internet country code top-level domain for Slovakia ** Slovak koruna, a former currency of Slovakia ** Slovak language (ISO 639-1 language code "sk") Other * sk. sokak, Turkish postal abbreviation *South Korea, an Asian country *Saskatchewan, a Canadian province by postal abbreviation *Sikkim, a state in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SK Inc
SK may refer to: People * SK (actor) or Sivakarthikeyan, Indian actor * Salman Khan or SK, Indian actor * Shahram Kashani (SK), an Iranian-American singer * Shakib Khan, Bangladeshi film actor, known by the initialism SK * Søren Kierkegaard, Danish philosopher and theologian Businesses and organizations * SK Foods, an American agribusiness company * SK Hand Tools, an American tool manufacturer * Sangguniang Kabataan, Philippines youth councils * SK Group, South Korean conglomerate * Scandinavian Airlines (IATA code SK) * Silicon Knights, a Canadian video game developer Places Slovakia * Slovakia (ISO country code) ** ISO 3166-2:SK, codes for the regions of Slovakia ** .sk, the internet country code top-level domain for Slovakia ** Slovak koruna, a former currency of Slovakia ** Slovak language (ISO 639-1 language code "sk") Other * sk. sokak, Turkish postal abbreviation *South Korea, an Asian country *Saskatchewan, a Canadian province by postal abbreviation *Sikkim, a state ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyester
Polyester is a category of polymers that contain one or two ester linkages in every repeat unit of their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include some naturally occurring chemicals, such as those found in plants and insects. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. Synthetic polyesters are used extensively in clothing. Polyester fibers are sometimes spun together with natural fibers to produce a cloth with blended properties. Cotton-polyester blends can be strong, wrinkle- and tear-resistant, and reduce shrinking. Synthetic fibers using polyester have high water, wind, and environmental resistance compared to plant-derived fibers. They are less Fireproofing, fire-resistant and can melt when ignited. Liquid crystalline polyesters are among the first industrially used liquid crystal polymers. They are used for their mechanical propert ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kyoto
Kyoto ( or ; Japanese language, Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in the Kansai region of Japan's largest and most populous island of Honshu. , the city had a population of 1.46 million, making it the List of cities in Japan, ninth-most populous city in Japan. More than half (56.8%) of Kyoto Prefecture's population resides in the city. The city is the cultural anchor of the substantially larger Greater Kyoto, a metropolitan statistical area (MSA) home to a census-estimated 3.8 million people. It is also part of the even larger Keihanshin, Keihanshin metropolitan area, along with Osaka and Kobe. Kyoto is one of the oldest municipalities in Japan, having been chosen in 794 as the new seat of Japan's imperial court by Emperor Kanmu. The original city, named Heian-kyō, was arranged in accordance with traditional Chinese feng shui following the model of the ancient Chinese capitals of Chang'an and Luoyang. The emperors of Japan ruled fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korea Under Japanese Rule
From 1910 to 1945, Korea was ruled by the Empire of Japan under the name Chōsen (), the Japanese reading of "Joseon". Japan first took Korea into its sphere of influence during the late 1800s. Both Korea (Joseon) and Japan had been under policies of isolationism, with Joseon being a Tributary system of China, tributary state of Qing China. However, in 1854, Perry Expedition, Japan was forcibly opened by the United States. It then rapidly modernized under the Meiji Restoration, while Joseon continued to resist foreign attempts to open it up. Japan eventually succeeded in opening Joseon with the unequal Japan–Korea Treaty of 1876. Afterwards, Japan embarked on a decades-long process of defeating its local rivals, securing alliances with Western powers, and asserting its influence in Korea. Japan Assassination of Empress Myeongseong, assassinated the defiant Korean queen and intervened in the Donghak Peasant Revolution.Donald Keene, ''Emperor of Japan: Meiji and his World, 1852� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roh Tae-woo
Roh Tae-woo (, ; 4 December 1932 – 26 October 2021) was a South Korean army general and politician who served as the sixth president of South Korea from 1988 to 1993. In 1987, he became the first president to be directly elected under the current democratic Constitution of South Korea, constitution, which was promulgated after a lengthy period of indirect elections under military governments following the advent of the Yushin Constitution in 1972 South Korean presidential election, 1972. Born in Daegu, Roh attended the Korea Military Academy alongside his close friend Chun Doo-hwan. Rising steadily through the ranks, he saw action in the Vietnam War, and by 1979 he was a major general and commanded the 9th Infantry Division (South Korea), White Horse Division. In that capacity, Roh played a key role in the Coup d'état of December Twelfth, December 1979 military coup that brought Chun to power, and supported Chun's violent crackdown of the Gwangju Uprising in 1980. Retiring fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flash Memory
Flash memory is an Integrated circuit, electronic Non-volatile memory, non-volatile computer memory storage medium that can be electrically erased and reprogrammed. The two main types of flash memory, NOR flash and NAND flash, are named for the NOR gate, NOR and NAND gate, NAND logic gates. Both use the same cell design, consisting of floating-gate MOSFETs. They differ at the circuit level, depending on whether the state of the bit line or word lines is pulled high or low; in NAND flash, the relationship between the bit line and the word lines resembles a NAND gate; in NOR flash, it resembles a NOR gate. Flash memory, a type of floating-gate memory, was invented by Fujio Masuoka at Toshiba in 1980 and is based on EEPROM technology. Toshiba began marketing flash memory in 1987. EPROMs had to be erased completely before they could be rewritten. NAND flash memory, however, may be erased, written, and read in blocks (or pages), which generally are much smaller than the entire devi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Semiconductor
A semiconductor is a material with electrical conductivity between that of a conductor and an insulator. Its conductivity can be modified by adding impurities (" doping") to its crystal structure. When two regions with different doping levels are present in the same crystal, they form a semiconductor junction. The behavior of charge carriers, which include electrons, ions, and electron holes, at these junctions is the basis of diodes, transistors, and most modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called " metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second-most common semiconductor and is used in laser diodes, solar cells, microwave-frequency integrated circuits, and others. Silicon is a critical element for fabricating most electronic circuits. Semiconductor devices can display a range of different useful properties, such as passing current more easil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petrochemical
Petrochemicals (sometimes abbreviated as petchems) are the chemical products obtained from petroleum by refining. Some chemical compounds made from petroleum are also obtained from other fossil fuels, such as coal or natural gas, or renewable sources such as maize, palm fruit or sugar cane. The two most common petrochemical classes are olefins (including ethylene and propylene) and aromatics (including benzene, toluene and xylene isomers). Oil refineries produce olefins and aromatics by fluid catalytic cracking of petroleum fractions. Chemical plants produce olefins by steam cracking of natural gas liquids like ethane and propane. Aromatics are produced by catalytic reforming of naphtha. Olefins and aromatics are the building-blocks for a wide range of materials such as solvents, detergents, and adhesives. Olefins are the basis for polymers and oligomers used in plastics, resins, fibers, elastomers, lubricants, and gels. Global ethylene production was 190 milli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemicals
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical mixture. If a mixture is separated to isolate one chemical substance to a desired degree, the resulting substance is said to be chemically pure. Chemical substances can exist in several different physical states or phases (e.g. solids, liquids, gases, or plasma) without changing their chemical composition. Substances transition between these phases of matter in response to changes in temperature or pressure. Some chemical substances can be combined or converted into new substances by means of chemical reactions. Chemicals that do not possess this ability are said to be inert. Pure water is an example of a chemical substance, with a constant composition of two hydrogen atoms bonded to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samsung
Samsung Group (; stylised as SΛMSUNG) is a South Korean Multinational corporation, multinational manufacturing Conglomerate (company), conglomerate headquartered in the Samsung Town office complex in Seoul. The group consists of numerous affiliated businesses, most of which operate under the Samsung brand, and is the largest (business conglomerate) in South Korea. Samsung has the world's List of most valuable brands, fifth-highest brand value. Founded in 1938 by Lee Byung-chul as a trading company, Samsung diversified into various sectors, including food processing, textiles, insurance, securities, and retail, over the next three decades. In the late 1960s, Samsung entered the electronics industry, followed by the construction and shipbuilding sectors in the mid-1970s—areas that would fuel its future growth. After Lee died in 1987, Samsung was divided into five business groups: Samsung Group, Shinsegae Group, CJ Group, Hansol Group, and JoongAng Ilbo, JoongAng Group. K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaebol
A chaebol ( , ; , ) is a large industrial South Korean conglomerate run and controlled by an individual or family. A chaebol often consists of multiple diversified affiliates, controlled by a person or group. Several dozen large South Korean family-controlled corporate groups fall under this definition. The term first appeared in English text in 1972. Chaebol have also played a significant role in South Korean politics. In 1988, a member of a chaebol family, Chung Mong-joon, president of Hyundai Heavy Industries, successfully ran for the National Assembly of South Korea. Other business leaders were also chosen to be members of the National Assembly through proportional representation. Hyundai Group, Hyundai has made efforts in the thawing of North Korea–South Korea relations, North Korean relations, despite some controversy. Many South Korean family-run chaebol have been criticised for low dividend payouts and other governance practices that favor controlling shareholders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
