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Terms for subject Environment (6130 entries)
rádionuklid radionuclide (A nuclide that exhibits radioactivity)
radón radon (A radioactive gaseous element emitted naturally from rocks and minerals where radioactive elements are present. It is released in non-coal mines, e.g. tin, iron, fluorspar, uranium. Radon is an alpha particle emitter as are its decay products and has been indicted as a cause of excessive occurrence of lung cancer in uranium miners. Concern has been expressed at radon levels in some housing usually adjacent to granite rocks or old tin mining regions)
rafinácia refining (The processing of raw material to remove impurities)
rafinácia ropy oil refining (The separation of petroleum mixtures into their component parts)
rafinéria refinery (A factory for the purification of some crude material such as ore, sugar, oil, etc.)
rafinéria ropy oil refinery (System of process units used to convert crude petroleum into fuels, lubricants, and other petroleum-derived products)
rákos reed (Any of various types of tall stiff grass-like plants growing together in groups near water)
rakovina cancer (Any malignant cellular tumour including carcinoma and sarcoma. It encompasses a group of neoplastic diseases in which there is a transformation of normal body cells into malignant ones, probably involving some change in the genetic material of the cells, possibly as a result of faulty repair of damage to the cell caused by carcinogenic agents or ionizing radiation)
rámcová legislatíva framework legislation (A body of rules prescribed by a government, often composed in a series of inter-related parts, to establish or lay the foundation for a new project, agency or organizational structure)
Rámcový dohovor Organizácie Spojených národov o zmene klímy United Nations Framework Convention on Climate Change
Rámcový dohovor Organizácie Spojených národov o zmene klímy Convention on Climate Change
rámcový plán poľnohospodárstva agriculture framework plan (A formulated or systematic method for the management of soil, crops and livestock)
ramenonožce Articulata (Animals characterized by the repetition of similar segments (metameres), exhibited especially by arthropods, annelids, and vertebrates in early embryonic stages and in certain specialized adult structures)
rašelina peat (Unconsolidated soil material consisting largely of undecomposed or slightly decomposed organic matter accumulated under conditions of excessive moisture)
rašelinisko moor (A tract of unenclosed waste ground, usually covered with heather, coarse grass, bracken, and moss)
rašelinisko bog (A commonly used term in Scotland and Ireland for a stretch waterlogged, spongy ground, chiefly composed of decaying vegetable matter, especially of rushes, cotton grass, and sphagnum moss)
rašelinisko peat land
rašelinisko peatland
raster raster (One of the two major types of internal data organization used in GIS. Raster systems superimpose a regular grid over the area of interest and associate each cell-or pixel, to use the image term- with one or more data records. The values associated with each grid cell may represent either real values or any scalar or nominal data values associated with the cell coordinates. Among the strengths of the raster method is its ability to accept data directly from remote sensing systems and to represent transitional information. Raster systems tend to be relatively storage-intensive and this imposes practical limits on the area of coverage, the resolution, or both of these. Capacity constraints are, however, becoming less significant as computer memory and storage become more powerful and as data compression techniques become more readily available)
raster na vektor raster to vector (Methods to convert remotely sensed raster data to vector format. A number of raster-to-vector and vector-to-raster conversion procedures have been developed and introduced to current releases of many GIS packages)