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Daecheong Dam
The Daecheong Dam is a combination concrete gravity (made of concrete) and embankment dam (made of earth) on the Geum River, north of Daejeon in South Korea. The multi-purpose dam provides benefits of flood control, water supply and hydroelectric power generation. Construction on the dam began in 1975 and was formally commissioned on 1 December 1980. The high rock-fill dam has a central clay core and has created a reservoir with storage of . The reservoir is operated by the Korea Water Resources Corporation (K-water) for flood control, hydro-power generation and water supply. Geography The dam is built on the Geum River, also spelled Keum River or Geumgang River, which is the longest river in the central part of South Korea. The downstream stretch of the river up to the estuary is . The dam drains a catchment area of . The land use pattern of the watershed is 74.5% of forest and hilly area, 16.3% of agricultural land of paddy and other crops, and 9.2% of urban area. The river is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Daejeon
Daejeon () is South Korea's fifth-largest metropolis, with a population of 1.5 million as of 2019. Located in the central-west region of South Korea alongside forested hills and the Geum River, the city is known both for its technology and research institutions, and for celebrating its natural environment, with most mountains, hot springs, and rivers freely open for public use. Daejeon serves as a hub of transportation for major rail and road routes, and is approximately 50 minutes from the capital, Seoul, by KTX or SRT high speed rail. Daejeon (along with Seoul, Gwacheon and Sejong City) are collectively South Korea's administration hubs. The city is home to 23 universities and colleges, including Korea Advanced Institute of Science and Technology (KAIST) and Chungnam National University, as well as government research institutes, and research and development centers for global companies such as Samsung, LG, mostly located in the city's Daedeok Science Town. Occupied b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeonju
Jeonju () is the 16th largest city in South Korea and the capital of North Jeolla Province. It is both urban and rural due to the closeness of Wanju County which almost entirely surrounds Jeonju (Wanju County has many residents who work in Jeonju). The name Jeonju literally means "Perfect Region" (from the hanja (; jeon) for perfect, (; ju) for region). It is an important tourist center famous for Korean food, historic buildings, sports activities, and innovative festivals. In May 2012, Jeonju was chosen as a Creative City for Gastronomy as part of UNESCO's Creative Cities Network. This honour recognizes the city's traditional home cooking handed down over thousands of years, its active public and private food research, a system of nurturing talented chefs, and its hosting of distinctive food festivals. History The Baekje kingdom was located in southwestern Korea which included the area Jeonju is now located. It is believed that Jeonju was founded as a market town within Baekj ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Daejeon
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric Power Stations In South Korea
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In South Korea
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Power Stations In South Korea ...
The following page lists power stations in South Korea. Non-renewable Coal All power station lists are based on the 7th Basic Electricity Supply Plan(2015) Fuel Oil All power stations with at least 500 MW nameplate capacity are listed. Natural Gas All power stations with at least 1,000 MW nameplate capacity are listed. Nuclear All power stations are listed. Renewable Hydroelectric Power stations with at least 50 MW nameplate capacity are listed. Tidal Wind Power stations with at least 10 MW nameplate capacity are listed. See also * List of largest power stations in the world References {{Power stations South Korea Power stations A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many pow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manganese
Manganese is a chemical element with the symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels. It improves strength, workability, and resistance to wear. Manganese oxide is used as an oxidising agent; as a rubber additive; and in glass making, fertilisers, and ceramics. Manganese sulfate can be used as a fungicide. Manganese is also an essential human dietary element, important in macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes. It is found mostly in the bones, but also the liver, kidneys, and brain. In the human brain, the manganese is bound to manganese metalloproteins, most notably glutamine synthetase in astrocytes. Manganese was first isolated in 1774. It is familiar in the laboratory in the form of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemical Oxygen Demand
In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution. It is commonly expressed in mass of oxygen consumed over volume of solution which in SI units is milligrams per litre ( mg/ L). A COD test can be used to easily quantify the amount of organics in water. The most common application of COD is in quantifying the amount of oxidizable pollutants found in surface water (e.g. lakes and rivers) or wastewater. COD is useful in terms of water quality by providing a metric to determine the effect an effluent will have on the receiving body, much like biochemical oxygen demand (BOD). Overview The basis for the COD test is that nearly all organic compounds can be fully oxidized to carbon dioxide with a strong oxidizing agent under acidic conditions. The amount of oxygen required to oxidize an organic compound to carbon dioxide, ammonia, and water is given by: :\mbox_n\mbox_a\mb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Matter
Organic matter, organic material, or natural organic matter refers to the large source of carbon-based compounds found within natural and engineered, terrestrial, and aquatic environments. It is matter composed of organic compounds that have come from the feces and remains of organisms such as plants and animals. Organic molecules can also be made by chemical reactions that do not involve life. Basic structures are created from cellulose, tannin, cutin, and lignin, along with other various proteins, lipids, and carbohydrates. Organic matter is very important in the movement of nutrients in the environment and plays a role in water retention on the surface of the planet. Formation Living organisms are composed of organic compounds. In life, they secrete or excrete organic material into their environment, shed body parts such as leaves and roots and after organisms die, their bodies are broken down by bacterial and fungal action. Larger molecules of organic matter can be formed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutrophication
Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytoplankton productivity". Water bodies with very low nutrient levels are termed oligotrophic and those with moderate nutrient levels are termed mesotrophic. Advanced eutrophication may also be referred to as dystrophic and hypertrophic conditions. Eutrophication can affect freshwater or salt water systems. In freshwater ecosystems it is almost always caused by excess phosphorus. In coastal waters on the other hand, the main contributing nutrient is more likely to be nitrogen, or nitrogen and phosphorus together. This depends on the location and other factors. When occurring naturally, eutrophication is a very slow process in which nutrients, especially phosphorus compounds and organic matter, accumulate in water bodies. These nutrients deriv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iksan
Iksan ( ko, 익산; ) is a city and major railway junction in North Jeolla Province, (commonly transliterated as Jeollabuk-do or Chollabuk-do) South Korea. The city center and railway junction was formerly called "Iri" (), but merged with Iksan County (''Iksan-gun'') in 1995. The railway junction is located at the point where Jeolla, Janghang and Gunsan Lines meet the Honam Line and is served by frequent train service to/from Seoul, Daejeon, Gwangju, Mokpo, Jeonju, Suncheon, and Yeosu. Jeonbuk National University Iksan campus (before, it was Iksan National College), the Won Buddhism Graduate School, Wonkwang Health Science College, and Wonkwang University are all located in Iksan. This city is called “The City of Jewelry." The Iksan Jewelry Museum opened in May 2002 next to a Dinosaur museum. In late November 2006, Korean authorities quarantined a farm in Iksan and began culling poultry and livestock within a 3-kilometer radius to contain an outbreak of the H5N1 bird flu v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
