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China National Nuclear Corp
The China National Nuclear Corporation (CNNC; ) is a state-owned enterprise founded in 1955 in Beijing. CNNC's president and vice-president are appointed by the Premier of the People's Republic of China. CNNC oversees all aspects of China's civilian and military nuclear programs. According to its own mission statement, it "is a main part of the national nuclear technology industry and a leading element of national strategic nuclear forces and nuclear energy development." Its headquarters are in Xicheng District, Beijing. History The Ministry of Nuclear Industry built China's first atom bomb, hydrogen bomb and nuclear submarine. It functioned as a government bureau for the national nuclear industry and reported directly to the State Council. It oversaw China's nuclear-related corporations, manufacturers, institutions, research institutes, and plants, including those related to nuclear weapons. It was responsible for the design and operation of nuclear power plants; nuclear fuel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China General Nuclear Power Group
China General Nuclear Power Group (CGN) (), formerly China Guangdong Nuclear Power Group (), is a Chinese state-owned energy corporation under the State-owned Assets Supervision and Administration Commission of the State Council (SASAC). , CGN is China's biggest domestic nuclear power operator (with more than 50% of the domestic market) and is the world's largest nuclear power construction company. In China, CGN operates nuclear plants at Daya Bay Nuclear Power Plant, Ling Ao Nuclear Power Plant, Hongyanhe Nuclear Power Plant and Ningde Nuclear Power Plant, with five new nuclear power stations under construction and another two planned. CGN operates in wind energy and solar energy, as well as hydroelectricity. History China Guangdong Nuclear Power Holding Co., Ltd. (CGNPC) was established in 1994 with a registered capital of RMB 10.2 billion with nuclear power as its core business. With CGNPC as its core enterprise, China Guangdong Nuclear Power Group (CGNPG) comprises m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Uranium
Natural uranium (NU or Unat) is uranium with the same isotopic ratio as found in nature. It contains 0.711% uranium-235, 99.284% uranium-238, and a trace of uranium-234 by weight (0.0055%). Approximately 2.2% of its radioactivity comes from uranium-235, 48.6% from uranium-238, and 49.2% from uranium-234. Natural uranium can be used to fuel both low- and high-power nuclear reactors. Historically, graphite-moderated reactors and heavy water-moderated reactors have been fueled with natural uranium in the pure metal (U) or uranium dioxide (UO2) ceramic forms. However, experimental fuelings with uranium trioxide (UO3) and triuranium octaoxide (U3O8) have shown promise. The 0.72% uranium-235 is not sufficient to produce a self-sustaining critical chain reaction in light water reactors or nuclear weapons; these applications must use enriched uranium. Nuclear weapons take a concentration of 90% uranium-235, and light water reactors require a concentration of roughly 3% uranium-235 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxford University Press
Oxford University Press (OUP) is the publishing house of the University of Oxford. It is the largest university press in the world. Its first book was printed in Oxford in 1478, with the Press officially granted the legal right to print books by decree in 1586. It is the second-oldest university press after Cambridge University Press, which was founded in 1534. It is a department of the University of Oxford. It is governed by a group of 15 academics, the Delegates of the Press, appointed by the Vice Chancellor, vice-chancellor of the University of Oxford. The Delegates of the Press are led by the Secretary to the Delegates, who serves as OUP's chief executive and as its major representative on other university bodies. Oxford University Press has had a similar governance structure since the 17th century. The press is located on Walton Street, Oxford, Walton Street, Oxford, opposite Somerville College, Oxford, Somerville College, in the inner suburb of Jericho, Oxford, Jericho. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
District Heating
District heating (also known as heat networks) is a system for distributing heat generated in a centralized location through a system of insulated pipes for residential and commercial heating requirements such as space heater, space heating and water heating. The heat is often obtained from a cogeneration plant burning fossil fuels or biomass, but heating plant, heat-only boiler stations, geothermal heating, heat pumps and central solar heating are also used, as well as heat waste from factories and nuclear power electricity generation. District heating plants can provide higher efficiencies and better pollution control than localized boilers. According to some research, district heating with combined heat and power (CHPDH) is the cheapest method of cutting carbon emissions, and has one of the lowest carbon footprints of all fossil generation plants. District heating is ranked number 27 in Drawdown (climate), Project Drawdown's 100 solutions to climate change, global warming. His ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Fuel Cycle
The nuclear fuel cycle, also known as the nuclear fuel chain, describes the series of stages that nuclear fuel undergoes during its production, use, and recycling or disposal. It consists of steps in the ''front end'', which are the preparation of the fuel, steps in the ''service period'' in which the fuel is used during reactor operation, and steps in the ''back end'', which are necessary to safely manage, contain, and either reprocess or dispose of spent nuclear fuel. If spent fuel is not reprocessed, the fuel cycle is referred to as an ''open fuel cycle'' (or a ''once-through fuel cycle''); if the spent fuel is reprocessed, it is referred to as a ''closed fuel cycle''. Basic concepts Nuclear power relies on fissionable material that can sustain a chain reaction with neutrons. Examples of such materials include uranium and plutonium. Most nuclear reactors use a moderator to lower the kinetic energy of the neutrons and increase the probability that fission will occur. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Nuclear Laboratory
The United Kingdom National Nuclear Laboratory (UKNNL, formerly National Nuclear Laboratory and earlier Nexia Solutions) is a UK government owned and operated nuclear services technology provider covering the whole of the nuclear fuel cycle. It is fully customer-funded and operates at six locations in the United Kingdom. Its customers have included the Nuclear Decommissioning Authority, Sellafield Ltd, Westinghouse, the Health and Safety Executive, the Ministry of Defence, the UK Atomic Energy Authority, VT Nuclear and British Energy. It also has links with academia, including collaborative agreements on waste immobilisation and disposal with the University of Sheffield and on nuclear materials research with the University of Manchester. History The organisation began to come together in 1996 when a number of separate research and development facilities began to coalesce into a single unit within British Nuclear Fuels (BNFL). In 2003, this research and technology business w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traveling Wave Reactor
A traveling-wave reactor (TWR) is a proposed type of nuclear fission reactor that can convert fertile material into usable fuel through nuclear transmutation, in tandem with the burnup of fissile material. TWRs differ from other kinds of fast-neutron and breeder reactors in their ability to use fuel efficiently without uranium enrichment or reprocessing, instead directly using depleted uranium, natural uranium, thorium, spent fuel removed from light water reactors, or some combination of these materials. The concept is still in the development stage and no TWRs have ever been built. The name refers to the fact that fission remains confined to a boundary zone in the reactor core that slowly advances over time. TWRs could theoretically run self-sustained for decades without refueling or removing spent fuel. History Traveling-wave reactors were first proposed in the 1950s and have been studied intermittently. The concept of a reactor that could breed its own fuel inside the reac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TerraPower
TerraPower is an American nuclear reactor design and development engineering company headquartered in Bellevue, Washington. TerraPower is developing a class of nuclear fast reactors termed traveling wave reactors (TWR). Description TWR places a small core of the enriched fuel in the center of a much larger mass of non-fissile material, in this case depleted uranium. Neutrons from the fission in the core "breeds" new fissile material in the surrounding mass, producing Plutonium-239. Over time, enough fuel is bred in the area surrounding the core that it can undergo fission, enabling a steady-state reactor composition to be approximated by moving outer fuel rods towards the core as original core fuel rods are moved to the periphery. Natrium uses liquid sodium as a coolant, reducing the cost of using an ambient pressure primary loop. It then transfers that heat to molten salt, which can be stored in tanks and used to generate steam on demand, enabling the reactor to run contin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bill Gates
William Henry Gates III (born October 28, 1955) is an American businessman and philanthropist. A pioneer of the microcomputer revolution of the 1970s and 1980s, he co-founded the software company Microsoft in 1975 with his childhood friend Paul Allen. Following the company's 1986 initial public offering (IPO), Gates became a billionaire in 1987—then the youngest ever, at age 31. ''Forbes'' magazine The World's Billionaires, ranked him as the world's wealthiest person for 18 out of 24 years between 1995 and 2017, including 13 years consecutively from 1995 to 2007. He became the first centibillionaire in 1999, when his net worth briefly surpassed $100 billion. According to ''Forbes'', as of May 2025, his net worth stood at US$115.1 billion, making him the thirteenth-richest individual in the world. Born and raised in Seattle, Washington, Gates was privately educated at Lakeside School (Seattle), Lakeside School, where he befriended Allen and developed his computing interests ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Initial Public Offering
An initial public offering (IPO) or stock launch is a public offering in which shares of a company are sold to institutional investors and usually also to retail (individual) investors. An IPO is typically underwritten by one or more investment banks, who also arrange for the shares to be listed on one or more stock exchanges. Through this process, colloquially known as ''floating'', or ''going public'', a privately held company is transformed into a public company. Initial public offerings can be used to raise new equity capital for companies, to monetize the investments of private shareholders such as company founders or private equity investors, and to enable easy trading of existing holdings or future capital raising by becoming publicly traded. After the IPO, shares are traded freely in the open market at what is known as the free float. Stock exchanges stipulate a minimum free float both in absolute terms (the total value as determined by the share price multiplied ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Yuan
The renminbi ( ; currency symbol, symbol: Yen and yuan sign, ¥; ISO 4217, ISO code: CNY; abbreviation: RMB), also known as the Chinese yuan, is the official currency of the China, People's Republic of China. The renminbi is issued by the People's Bank of China, the Central bank, monetary authority of China. It is the world's Template:Most traded currencies, fifth-most-traded currency as of April 2022. The Yuan (currency), yuan () is the basic unit of the renminbi. One yuan is divided into 10 Jiao (currency), jiao (), and the jiao is further subdivided into 10 Fen (currency), fen (). The word ''yuan'' is widely used to refer to the Chinese currency generally, especially in international contexts. Valuation Until 2005, the value of the renminbi was Fixed exchange-rate system, pegged to the United States dollar, US dollar. As China pursued its Chinese economic reform, transition from planned economy, central planning to a market economy and increased its participation in foreign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kang Rixin
Kang Rixin (; born August 1953) is a Chinese former nuclear engineer and politician. He served as chief manager of China National Nuclear Corporation (CNNC) and was a member of the 17th Central Committee of the Chinese Communist Party. He was sentenced to life imprisonment in 2010 for corruption. Biography Kang was born in Datong, Shanxi, China and graduated from the department of nuclear engineering of Shanghai Jiaotong University in August 1978. He joined the Chinese Communist Party (CCP) in December 1982. In January 2005, he graduated from the graduate school of the CCP Central Party School, majoring in economics management. In June 2005, he obtained an EMBA certificate from Tsinghua University. He is a senior engineer at the researcher level. From 2003 to 2009, he managed the China National Nuclear Corporation (CNNC), before being accused of corruption and bribery. Kang was sentenced to life imprisonment and confiscation of his possessions by a Beijing court in 2010 because he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
