|
Primož Jakopin
Primož Jakopin (pron. Premozh Yacopeen), born 30 June 1949 is a Slovenian computer scientist, known for his work in the field of language technology and his contribution to speleology. Early life and education Jakopin was born in 1949 in Ljubljana, Slovenia. The family lived in the village of Leskovec pri Krškem, Inner Carniola, Dolenjska region and in 1956 moved to Ljubljana. After a degree in technical mathematics (''Numerično računanje singularnih integralov'' / ''Numerical Computation of Singular Integrals'') at the University of Ljubljana in 1972, he obtained a master's degree in information sciences with the thesis ''Entropija imena i prezimena u Sloveniji'' / ''On entropy of first names and last names in Slovenia'' at the University of Zagreb in 1981 and in 1999 a Ph.D. with the thesis ''Zgornja meja entropije pri leposlovnih besedilih v slovenskem jeziku'' / ''Upper Bound of Entropy in Slovenian Literary Texts'', again at the University of Ljubljana. Computational ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ljubljana
Ljubljana (also known by other historical names) is the capital and largest city of Slovenia. It is the country's cultural, educational, economic, political and administrative center. During antiquity, a Roman city called Emona stood in the area. Ljubljana itself was first mentioned in the first half of the 12th century. Situated at the middle of a trade route between the northern Adriatic Sea and the Danube region, it was the historical capital of Carniola, one of the Slovene-inhabited parts of the Habsburg monarchy. It was under Habsburg rule from the Middle Ages until the dissolution of the Austro-Hungarian Empire in 1918. After World War II, Ljubljana became the capital of the Socialist Republic of Slovenia, part of the Socialist Federal Republic of Yugoslavia. The city retained this status until Slovenia became independent in 1991 and Ljubljana became the capital of the newly formed state. Name The origin of the name ''Ljubljana'' is unclear. In the Middle Ages, both ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mainframe Computer
A mainframe computer, informally called a mainframe or big iron, is a computer used primarily by large organizations for critical applications like bulk data processing for tasks such as censuses, industry and consumer statistics, enterprise resource planning, and large-scale transaction processing. A mainframe computer is large but not as large as a supercomputer and has more processing power than some other classes of computers, such as minicomputers, servers, workstations, and personal computers. Most large-scale computer-system architectures were established in the 1960s, but they continue to evolve. Mainframe computers are often used as servers. The term ''mainframe'' was derived from the large cabinet, called a ''main frame'', that housed the central processing unit and main memory of early computers. Later, the term ''mainframe'' was used to distinguish high-end commercial computers from less powerful machines. Design Modern mainframe design is characterized less b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polje
A polje, also karst polje or karst field, is a large flat plain found in karstic geological regions of the world, with areas usually . The name derives from the Slavic languages and literally means 'field', whereas in English ''polje'' specifically refers to a karst plain or karst field. In geology A polje, in geological terminology, is a large, flat-floored depression within karst limestone, whose long axis develops in parallel with major structural trends and can become several miles (tens of kilometers) long. Superficial deposits tend to accumulate along the floor. Drainage may be either by surface watercourses (as an ''open polje'') or by swallow holes (as a ''closed polje'') or ponors. Usually, the ponors cannot transmit entire flood flows, so many poljes become wet-season lakes. The structure of some poljes is related to the geological structure, but others are purely the result of lateral dissolution and planation. The development of poljes is fostered by any blockage i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ponor
A ponor is a natural opening where surface water enters into underground passages; they may be found in karst landscapes where the geology and the geomorphology is typically dominated by porous limestone rock. Ponors can drain stream or lake water continuously or can at times work as springs, similar to estavelles. Morphologically, ponors come in forms of large pits and caves, large fissures and caverns, networks of smaller cracks, and sedimentary, Alluvium, alluvial drains. Etymology The name for the karst formation ponor comes from Croatian language, Croatian and Slovene language, Slovene. It derives from the proto-Slavic language, proto-Slavic word ''nora'', meaning ''pit'', ''hole'', ''abyss''; the English word ''narrow'' probably has the same origin. Several places in southeast Europe (Bulgaria, Croatia, Czech Republic, Hungary, Romania, Montenegro, Slovenia) bear the name ''Ponor'' due to associated karst openings. Description Whereas a sinkhole (doline) is a depression o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cross Section (geometry)
In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross-sections. The boundary of a cross-section in three-dimensional space that is parallel to two of the axes, that is, parallel to the plane determined by these axes, is sometimes referred to as a contour line; for example, if a plane cuts through mountains of a raised-relief map parallel to the ground, the result is a contour line in two-dimensional space showing points on the surface of the mountains of equal elevation. In technical drawing a cross-section, being a projection of an object onto a plane that intersects it, is a common tool used to depict the internal arrangement of a 3-dimensional object in two dimensions. It is traditionally crosshatched with the style of crosshatching often indicating the types of materials being used. With computed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3D Modeling
In 3D computer graphics, 3D modeling is the process of developing a mathematical coordinate-based representation of any surface of an object (inanimate or living) in three dimensions via specialized software by manipulating edges, vertices, and polygons in a simulated 3D space. Three-dimensional (3D) models represent a physical body using a collection of points in 3D space, connected by various geometric entities such as triangles, lines, curved surfaces, etc. Being a collection of data ( points and other information), 3D models can be created manually, algorithmically (procedural modeling), or by scanning. Their surfaces may be further defined with texture mapping. Outline The product is called a 3D model. Someone who works with 3D models may be referred to as a 3D artist or a 3D modeler. A 3D Model can also be displayed as a two-dimensional image through a process called 3D rendering or used in a computer simulation of physical phenomena. 3D Models may be created au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Deepest Caves
This list of deepest caves includes the deepest known natural caves according to maximum surveyed depth . The depth value is measured from the highest to the lowest accessible cave point. See also *List of caves *List of deepest mines * List of longest caves * List of sinkholes * Show cave * Speleology External links World's Deepest Caves References {{DEFAULTSORT:Deepest caves Deepest Caves Caves A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea ... Vertical position ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Longest Caves
This list of longest caves includes caves in which the combined length of documented passageways exceeds . In some of these caves, passageways are still being discovered. Geographical distribution Caves are found around the world. The largest form in areas of karst landforms whose rocks erode easily. Preferable conditions for karst cave formation are adequate precipitation, enough plants and animals to produce ample carbon dioxide, and a landscape of gentle hills which drains slowly. The highest concentrations of long caves in the world are found in the Pennyroyal Plateau of southern Kentucky, United States, in the Black Hills of South Dakota, United States, and in the Yucatán Peninsula, Mexico. List See also * List of caves * List of deepest caves * Show cave * Speleology External links World's Deepest Caves References {{DEFAULTSORT:Longest Caves Longest Caves Geography-related lists of superlatives Caves A cave or cavern is a natural void in the gro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Survey
A cave survey is a map of all or part of a cave system, which may be produced to meet differing standards of accuracy depending on the cave conditions and equipment available underground. Cave surveying and cartography, i.e. the creation of an accurate, detailed map, is one of the most common technical activities undertaken within a cave and is a fundamental part of speleology. Surveys can be used to compare caves to each other by length, depth and volume, may reveal clues on speleogenesis, provide a spatial reference for other areas of scientific study and assist visitors with route-finding. Traditionally, cave surveys are produced in two-dimensional form due to the confines of print, but given the three-dimensional environment inside a cave, modern techniques using computer aided design are increasingly used to allow a more realistic representation of a cave system. History The first known plan of a cave dates from 1546, and was of a man-made cavern in tufa called the Stufe di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ljubljana Cave Exploration Society
The Ljubljana Cave Exploration Society (, DZRJL) is a Slovenian non-profit speleological organization founded in 1910 dedicated to the discovery, exploration, documentation and protection of caves in Slovenia. It is based in Ljubljana, is the oldest still active caving society in the country and is most known for its work in the deep caves of the Kanin_Mountains, Kanin mountain range. It discovered, explored and surveyed four caves, deeper than 1,000 meters; the 2019 connection of two reduced the figure to three. Early history Exploration and documentation of caves in what is now Slovenia began with the publication of the book The Glory of the Duchy of Carniola by Johann Weikhard von Valvasor in 1689, and continued with the works of Joseph Anton Nagel (1748), Franc Anton von Steinberg (1758) and Adolf Schmidl (1854). At the end of the 19th century, the focus of cave exploration was in Škocjan Caves, Škocjanske jame and the Postojna Cave, Postojnska jama. It was mainly driven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pavel Kunaver
Pavel Kunaver (19 December 1889 – 19 April 1988) was a Slovene language, Slovene pedagogy, pedagogue, writer of popular science books, geography, history and Slovene language teacher and pioneer of amateur astronomy, mountaineering, mountain climbing, skiing and caving in Slovenia. Life Pavel Kunaver was born in the family of Franc Kunaver in Dobrova near Ljubljana, senior guard in the correctional facility and mother Celestina Pristav. There were five brothers and one sister in the family. In addition to Pavel, Jože /Josip Kunaver (1882–1967) is also known as a mountaineer and member of the mountain club Dren (he first brought the skis to Ljubljana, which Pavel also used) Pavel Kunaver finished passed the State Teacher's Exam in 1910 and served until 1919 he served in primary schools around Ljubljana. Between 1912 and 1913 he completed a course non-state school teachers and from 1913 to 1914 studied geography at the teachers academy of the University of Vienna. He worked ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3D Model Of The Main Gallery In Skednena Jama Cave
3-D, 3D, or 3d may refer to: Science, technology, and mathematics Relating to three-dimensionality * Three-dimensional space ** 3D computer graphics, computer graphics that use a three-dimensional representation of geometric data ** 3D film, a motion picture that gives the illusion of three-dimensional perception ** 3D modeling, developing a representation of any three-dimensional surface or object ** 3D printing, making a three-dimensional solid object of a shape from a digital model ** 3D display, a type of information display that conveys depth to the viewer ** 3D television, television that conveys depth perception to the viewer ** Stereoscopy, any technique capable of recording three-dimensional visual information or creating the illusion of depth in an image Other uses in science and technology or commercial products * 3D projection * 3D rendering * 3D scanning, making a digital representation of three-dimensional objects * 3D video game (other) * 3-D Secure, a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Cave Survey")
