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Guiyang Metro Lines
Guiyang; Mandarin pronunciation: ; alternatively as Kweiyang is the capital of Guizhou province in China. It is centrally located within the province, on the eastern part of the Yunnan–Guizhou Plateau, and sits on the north bank of the Nanming River, a tributary of the Wu River. The city is situated at an elevation of approximately and covers an area of . According to the 2020 census, Guiyang had a total population of 5,987,018, with 4,506,134 lived in its six urban districts. Guiyang has a humid subtropical climate and is surrounded by mountains and forests. The area has been inhabited since at least the Spring and Autumn period and officially became the provincial capital in 1413, during the Ming dynasty (not the Yuan dynasty, as the Yuan ended in 1368). The city is home to a significant Miao and Bouyei ethnic minority population. Guiyang has a diversified economy, historically known for aluminum production, phosphate mining, and optical instrument manufacturing. Fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prefecture-level City
A prefecture-level city () or prefectural city is an administrative division of the China, People's Republic of China (PRC), ranking below a province of China, province and above a Counties of the People's Republic of China, county in China's administrative structure. Details During the Republican era, many of China's prefectural cities were designated as Counties of Taiwan, counties as the country's second level division below a province. From 1949 to 1983, the official term was a province-administrated city (Chinese: 省辖市). Prefectural level cities form the second level of the administrative structure (alongside prefecture of China, prefectures, Leagues of China, leagues and autonomous prefectures). Administrative chiefs (mayors) of prefectural level cities generally have the same rank as a division chief () of a national ministry. Since the 1980s, most former prefectures have been renamed into prefecture-level cities. A prefectural level city is a "city" () and "p ... [...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] |
Optical Instrument
An optical instrument is a device that processes light waves (or photons), either to enhance an image for viewing or to analyze and determine their characteristic properties. Common examples include periscopes, microscopes, telescopes, and cameras. Image enhancement The first optical instruments were telescopes used for magnification of distant images, and microscopes used for magnifying very tiny images. Since the days of Galileo and Van Leeuwenhoek, these instruments have been greatly improved and extended into other portions of the electromagnetic spectrum. The binocular device is a generally compact instrument for both eyes designed for mobile use. A camera could be considered a type of optical instrument, with the pinhole camera and camera obscura being very simple examples of such devices. Analysis Another class of optical instrument is used to analyze the properties of light or optical materials. They include: * Interferometer for measuring the interference propertie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phosphate Mining In Banaba And Nauru
The economy of Banaba and Nauru has been almost wholly dependent on phosphate, which has led to environmental disaster on these islands, with 80% of the islands' surface having been strip-mined. The phosphate deposits were virtually exhausted by 2000, although some small-scale mining is still in progress on Nauru. Mining ended on Banaba in 1979. First discovery of phosphate In 1896, a cargo officer ( supercargo) for the Pacific Islands Company on the ''Lady M'', Henry Denson, found a strange-looking rock on Nauru during a brief stop on the island. He originally believed it to be a piece of petrified wood. Denson, according to legend, had planned on making children's marbles from it but, as fate would have it, it ended up as a door stop in the company's Sydney office. In 1899, Albert Ellis, a management official of the phosphate division of the Pacific Islands Company, was transferred to the Sydney office to "analyse rock samples coming from the Pacific Islands." Ellis notic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminium
Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has a great affinity towards oxygen, passivation (chemistry), forming a protective layer of aluminium oxide, oxide on the surface when exposed to air. It visually resembles silver, both in its color and in its great ability to reflect light. It is soft, magnetism, nonmagnetic, and ductility, ductile. It has one stable isotope, 27Al, which is highly abundant, making aluminium the abundance of the chemical elements, 12th-most abundant element in the universe. The radioactive decay, radioactivity of aluminium-26, 26Al leads to it being used in radiometric dating. Chemically, aluminium is a post-transition metal in the boron group; as is common for the group, aluminium forms compounds primarily in the +3 oxidation state. The aluminium cation Al3+ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouyei People
The Bouyei (also spelled ''Puyi'', ''Buyei'' and ''Buyi''; , or "Puzhong", "Burao", "Puman"; ; ) are an ethnic group living in Southern Mainland China. Numbering 3.5 million, they are the 10th largest of the 56 ethnic groups officially recognized by the People's Republic of China. The Bouyei primarily live in the Qianxinan and Qiannan prefectures of southern Guizhou Province, as well as in Yunnan and Sichuan provinces and the Guangxi Zhuang Autonomous Region. Some 3,000 Bouyei also live in Northern Vietnam, where they are one of that nation's 54 officially recognized ethnic groups. In Vietnam, they are located in Mường Khương District of Lào Cai and Quản Bạ District of Hà Giang Province. Names The Bouyei consist of various subgroups. Below are their autonyms written in the International Phonetic Alphabet with numerical Chao tones. *', *', *', *', *', *', *', *', Some clans within the Bouyei groups include: *', *', *', In Congjiang County, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miao People
Miao is a word that the Chinese use to designate some ethnic minority groups living in southern China and Mainland Southeast Asia. Miao is thus officially recognized by the Chinese government as one of the largest ethnic minority groups that has more than 56 official ethnicities and dialects. The Miao live primarily in the mountains of southern China. Their homeland encompasses the provinces of Guizhou, Yunnan, Sichuan, Hubei, Hunan, Guangxi, Guangdong, and Hainan. Some sub-groups of the Miao, most notably the Hmong people, have migrated out of China into Southeast Asia (Myanmar, Northern Vietnam, Laos, and Thailand). Following the communist takeover of Laos in 1975, a large group of Hmong refugees resettled in several Western nations, mainly in the United States, France, and Australia. Miao is a Chinese term, while the component groups of people have their own autonyms, such as (with some variant spellings) Hmong, Hmu, Xong (Qo-Xiong), and A-Hmao. These people (except th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ming Dynasty
The Ming dynasty, officially the Great Ming, was an Dynasties of China, imperial dynasty of China that ruled from 1368 to 1644, following the collapse of the Mongol Empire, Mongol-led Yuan dynasty. The Ming was the last imperial dynasty of China ruled by the Han people, the majority ethnic group in China. Although the primary capital of Beijing fell in 1644 to a rebellion led by Li Zicheng (who established the short-lived Shun dynasty), numerous rump state, rump regimes ruled by remnants of the House of Zhu, Ming imperial family, collectively called the Southern Ming, survived until 1662. The Ming dynasty's founder, the Hongwu Emperor (1368–1398), attempted to create a society of self-sufficient rural communities ordered in a rigid, immobile system that would guarantee and support a permanent class of soldiers for his dynasty: the empire's standing army exceeded one million troops and the naval history of China, navy's dockyards in Nanjing were the largest in the world. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spring And Autumn Period
The Spring and Autumn period () was a period in History of China, Chinese history corresponding roughly to the first half of the Eastern Zhou (256 BCE), characterized by the gradual erosion of royal power as local lords nominally subject to the Zhou exercised increasing political autonomy. The period's name derives from the ''Spring and Autumn Annals'', a chronicle of the state of Lu between 722 and 481 BCE, which tradition associates with Confucius (551–479 BCE). During this period, local polities negotiated their own alliances, waged wars against one another, up to defying the king's court in Luoyang, Luoyi. The gradual Partition of Jin, one of the most powerful states, is generally considered to mark the end of the Spring and Autumn period and the beginning of the Warring States period. The periodization dates to the late Western Han (). Background In 771 BCE, a Quanrong invasion in coalition with the states of Zeng (state), Zeng and Shen (state), Shen— ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Humid Subtropical Climate
A humid subtropical climate is a subtropical -temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between latitudes 25° and 40° and are located poleward from adjacent tropical climates, and equatorward from either humid continental (in North America and Asia) or oceanic climates (in other continents). It is also known as warm temperate climate in some climate classifications. Under the Köppen climate classification, ''Cfa'' and ''Cwa'' climates are either described as humid subtropical climates or warm temperate climates. This climate features mean temperature in the coldest month between (or ) and and mean temperature in the warmest month or higher. However, while some climatologists have opted to describe this climate type as a "humid subtropical climate", Köppen himself never used this term. The humid subtropical climate classific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Administrative Divisions
Administrative divisions (also administrative units, administrative regions, subnational entities, or constituent states, as well as many similar generic terms) are geographical areas into which a particular independent sovereign state is divided. Such a unit usually has an administrative authority with the power to take administrative or policy decisions for its area. Administrative divisions are often used as polygons in geospatial analysis. Description Usually, sovereign states have several levels of administrative division. Common names for the principal (largest) administrative divisions include: Federated state, states (subnational states, rather than sovereign states), provinces, States of Germany#States, lands, oblasts and Region#Administrative regions, regions. These in turn are often subdivided into smaller administrative units known by names such as comarcas, raions or districts, which are further subdivided into municipality, municipalities, Commune (administrativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elevation
The elevation of a geographic location (geography), ''location'' is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational equipotential surface, surface (see Geodetic datum#Vertical datum, Geodetic datum § Vertical datum). The term ''elevation'' is mainly used when referring to points on the Earth's surface, while ''altitude'' or ''geopotential height'' is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and ''three-dimensional space, depth'' is used for points below the surface. Elevation is not to be confused with the distance from the center of the Earth. Due to the equatorial bulge, the summits of Mount Everest and Chimborazo (volcano), Chimborazo have, respectively, the largest elevation and the largest ECEF, geocentric distance. Aviation In aviation, the term ''elevation'' or ''aerodrome elevation'' is defined by the IC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
