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Pechora–Kama Canal
The Pechora–Kama Canal (russian: Канал Печора-Кама), or sometimes the Kama–Pechora Canal, was a proposed canal intended to link up the basin of the Pechora River in the north of European Russia with the basin of the Kama, a tributary of the Volga. An accomplishment of this project would integrate the Pechora into the system of waterways of European Russia, centered on the Volga – something that was of particular importance before the advent of the railways, or before the first railway reached the Pechora in the 1940s. Later on, the project was proposed mostly for the sake of transfer of Pechora's water to the Volga and further on to the Caspian Sea. 19th century proposals In the 19th century, communication between the Kama and the Pechora was conducted mostly over a 40-km portage road between Cherdyn and Yaksha. There was also an option to use very small boats that could go up the uppermost reaches of Kama and Pechora tributaries, and cart the goods over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pechora River
; Komi: Печӧра; Nenets: Санэроˮ яха , name_etymology = The Russian name of the river is a combination of two words in an old local Nenets dialect, "pe" & "chora". Literally it means "forest dweller". , image = Берега Печоры. Якша.jpg , image_size = 270 , image_caption = , map = Pechora-en.svg , map_size = 270 , map_caption = Pechora catchment area and tributaries , pushpin_map = , pushpin_map_size = , pushpin_map_caption= , subdivision_type1 = Country , subdivision_name1 = Russia , subdivision_type2 = State , subdivision_name2 = Komi Republic, Nenets Autonomous Okrug , subdivision_type3 = , subdivision_name3 = , subdivision_type4 = , subdivision_name4 = , subdivision_type5 = Cities , subdivision_name5 = Naryan-Mar, Pechora, Ust-Tsilma , length = , width_min = , width_avg = , width_max = , d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beryozovka River (Perm Krai)
The Beryozovka (russian: Берёзовка) is a river in Komi Republic and Perm Krai, Russia. It starts in Pechora-Ilych Nature Reserve Pechora-Ilych Nature Reserve (russian: Печоро-Илычский заповедник, ''Pechoro-Ilychsky zapovednik'') is a Russian 'zapovednik' (strict nature reserve) in the Komi Republic, Russia. It currently occupies 7,213 square kilometer ... in Komi Republic and flows into Lake Chusovskoye in the north of Cherdynsky District of Perm Krai. The river is long. The area of its basin is .«Река Березовка» Russian State Water Registry References Rivers of Perm Krai {{Russia-river-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Chagan
Lake Chagan (russian: Чаган) or Lake Shagan ( kk, Шаған, ''Şağan''), also known as Lake Balapan, is a lake in Kazakhstan created by the Chagan nuclear test on January 15, 1965, which was conducted as part of the Soviet Union Nuclear Explosions for the National Economy program. A 140 kiloton device was placed in a hole in the dry bed at the confluence of the Shagan and Ashchysu rivers. The blast created a crater across and deep with a lip height of ; it is often referred to as "Atomic Lake" ( kk, Атом көлі). The lake's water comes from the Shagan River, a tributary of the Irtysh River. The crater lake's volume is approximately . To the south, the rim of the crater holds back the waters of a second reservoir. Locals fish in the lake, despite warnings by authorities that it is hazardous. Media In Netflix's documentary series ''Dark Tourist'' (season 1 episode 4, "The Stans"), David Farrier visits and swims in Lake Chagan, as well as eats a fish from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Background Radiation
Background radiation is a measure of the level of ionizing radiation present in the environment at a particular location which is not due to deliberate introduction of radiation sources. Background radiation originates from a variety of sources, both natural and artificial. These include both cosmic radiation and environmental radioactivity from naturally occurring radioactive materials (such as radon and radium), as well as man-made medical X-rays, fallout from nuclear weapons testing and nuclear accidents. Definition Background radiation is defined by the International Atomic Energy Agency as "Dose or dose rate (or an observed measure related to the dose or dose rate) attributable to all sources other than the one(s) specified. So a distinction is made between dose which is already in a location, which is defined here as being "background", and the dose due to a deliberately introduced and specified source. This is important where radiation measurements are taken of a specifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sievert
The sievert (symbol: SvNot be confused with the sverdrup or the svedberg, two non-SI units that sometimes use the same symbol.) is a unit in the International System of Units (SI) intended to represent the stochastic health risk of ionizing radiation, which is defined as the probability of causing radiation-induced cancer and genetic damage. The sievert is important in dosimetry and radiation protection. It is named after Rolf Maximilian Sievert, a Swedish medical physicist renowned for work on radiation dose measurement and research into the biological effects of radiation. The sievert is used for radiation dose quantities such as equivalent dose and effective dose (radiation), effective dose, which represent the risk of external radiation from sources outside the body, and committed dose, which represents the risk of internal irradiation due to inhaled or ingested radioactive substances. According to the International Commission on Radiological Protection (ICRP) one sievert r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photosynthesis
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water – hence the name ''photosynthesis'', from the Greek ''phōs'' (), "light", and ''synthesis'' (), "putting together". Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth. Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centers that contain green chlorophyll (and other colored) pigments/chromoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gamma Ray
A gamma ray, also known as gamma radiation (symbol γ or \gamma), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically shorter than those of X-rays. With frequencies above 30 exahertz (), it imparts the highest photon energy. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium. In 1903, Ernest Rutherford named this radiation ''gamma rays'' based on their relatively strong penetration of matter; in 1900 he had already named two less penetrating types of decay radiation (discovered by Henri Becquerel) alpha rays and beta rays in ascending order of penetrating power. Gamma rays from radioactive decay are in the energy range from a few kiloelectronvolts (keV) to approximately 8 megaelectronvolts (MeV), corresponding to the typical energy levels in nuclei with reasonably long lif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neutron Activation
Neutron activation is the process in which neutron radiation induces radioactivity in materials, and occurs when atomic nuclei capture free neutrons, becoming heavier and entering excited states. The excited nucleus decays immediately by emitting gamma rays, or particles such as beta particles, alpha particles, fission products, and neutrons (in nuclear fission). Thus, the process of neutron capture, even after any intermediate decay, often results in the formation of an unstable activation product. Such radioactive nuclei can exhibit half-lives ranging from small fractions of a second to many years. Neutron activation is the only common way that a stable material can be induced into becoming intrinsically radioactive. All naturally occurring materials, including air, water, and soil, can be induced (activated) by neutron capture into some amount of radioactivity in varying degrees, as a result of the production of neutron-rich radioisotopes. Some atoms require more than one neu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobalt-60
Cobalt-60 (60Co) is a synthetic radioactive isotope of cobalt with a half-life of 5.2713 years. It is produced artificially in nuclear reactors. Deliberate industrial production depends on neutron activation of bulk samples of the monoisotopic and mononuclidic cobalt isotope . (PDF also located aCanadian Nuclear FAQ Measurable quantities are also produced as a by-product of typical nuclear power plant operation and may be detected externally when leaks occur. In the latter case (in the absence of added cobalt) the incidentally produced is largely the result of multiple stages of neutron activation of iron isotopes in the reactor's steel structures via the creation of its precursor. The simplest case of the latter would result from the activation of . undergoes beta decay to the stable isotope nickel-60 (). The activated nickel nucleus emits two gamma rays with energies of 1.17 and 1.33 MeV, hence the overall equation of the nuclear reaction (activation and decay) is: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bellona Foundation
The Bellona Foundation is an international environmental Non-governmental organization, NGO headquartered in Oslo, Norway, with branches in Europe and North America. Founded in 1986 by Frederic Hauge and Rune Haaland as a direct action protest group to curb Norway's oil and gas industry pollution, it grew to be multi-disciplinary and multinational in scope and in present day maintains offices in Oslo, Murmansk, St. Petersburg, Brussels and Washington, D.C. Bellona works with ecologists, specialists in the natural and social sciences, engineers, economists, attorneys, and journalists to accomplish its objectives. Goals In order to solve environmental issues, Bellona collaborates with organizations of environmental activists, scientific professionals, governments, and other NGOs. These include addressing the effects of climate change, eradicating Russia's nuclear legacy from the Cold War, and ensuring the security of oil and gas production and processing in Norway and Europe. Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recycling
Recycling is the process of converting waste materials into new materials and objects. The recovery of energy from waste materials is often included in this concept. The recyclability of a material depends on its ability to reacquire the properties it had in its original state. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions. It can also prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, reducing energy use, air pollution (from incineration) and water pollution (from landfilling). Recycling is a key component of modern waste reduction and is the third component of the "Reduce, Reuse, and Recycle" waste hierarchy. It promotes environmental sustainability by removing raw material input and redirecting waste output in the economic system. There are some ISO standards related to recycling, such as ISO 15270:2008 for plastics waste and ISO 14001:2015 for enviro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrap Metal
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes. Scrap recycling is important for creating a more sustainable economy or creating a circular economy, using significantly less energy and having far less environmental impact than producing metal from ore. Metal recycling, especially of structural steel, ships, used manufactured goods, such as vehicles and white goods, is a major industrial activity with complex networks of wrecking yards, sorting facilities and recycling plants. Processing Scrap metal originates both in business and residential environments. Typically a "scrapper" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
