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Azomureș (photosensitive Materials)
Azomureș (or AZO) was the only brand of Photography, photosensitive materials from Romania, produced by Azomureș, Combinatul de Îngrășăminte Azotoase Târgu-Mureș (''Târgu-Mureș Nitrogenous Fertilizer Plant'') between 1981 and 2003. The photographic materials were made in a separate section of the chemical plant, in the northern part of Târgu Mureș, using Japanese licensed production. The decision to locate the factory in this city was based on the tradition in photographic art and the existence of an older company in the field. The main products were black and white and color photographic paper and Photographic film, films for general photography, industrial and medical use and black and white and color Film stock, cinematographic films. The factory has stood out as one of the newest companies of its kind in the world. Due to low demand for film in the early 2000s, outdated production technology and debt, the department was closed in 2003. History Context In Tâ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azomureș
Azomureș is the largest Romanian fertilizer producer. It is based in Târgu Mureș. The company was bought in 2002 by the largest fertilizer producer in Turkey, Transworld Fertilizers. In 2011, Azomureș was acquired by Switzerland, Swiss company Ameropa Holding, Ameropa. In 1981, the department of Azomureș (photosensitive materials), photosensitive materials within the Târgu-Mureș Nitrogenous Fertilizer Plant was put into operation, having Konishiroku Japanese license. Ethnic hiring controversies Since its establishment, the ratio of Romanians, Romanian workers to Hungarians, Hungarian workers in the plant has been significantly higher, estimated at 90% or even higher, if in addition to skilled workers are added technical and administrative staff.''Translations on Eastern Europe political, sociological, and military affairs, No, 1404-A'', U.S. Joint Publications Research Service, National Technical Information Service Department of Commerce, Springfield, Virginia, 22 June 197 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kodak
The Eastman Kodak Company, referred to simply as Kodak (), is an American public company that produces various products related to its historic basis in film photography. The company is headquartered in Rochester, New York, and is incorporated in New Jersey. It is best known for photographic film products, which it brought to a mass market for the first time. Kodak began as a partnership between George Eastman and Henry A. Strong to develop a film roll camera. After the release of the Kodak camera, Eastman Kodak was incorporated on May 23, 1892. Under Eastman's direction, the company became one of the world's largest film and camera manufacturers, and also developed a model of welfare capitalism and a close relationship with the city of Rochester. During most of the 20th century, Kodak held a dominant position in photographic film, and produced a number of technological innovations through heavy investment in research and development at Kodak Research Laboratories. Kodak produce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copșa Mică
Copșa Mică (; ) is a town in Sibiu County, Transylvania, Romania, located north of Sibiu, 33 km east of Blaj, and 12 km southwest of Mediaș. It is on the route of the Via Transilvanica long-distance trail. Economy The Copșa Mică gas field The Copșa Mică gas field is a natural gas field located in the town. Discovered in 1915 and developed by Romgaz, it began production in 1920 and produces natural gas and condensates. On July 13, 1933, the biggest fire in the history of Romania occurred at a gas well here, with the flames reaching a height of . The fire was put out by the military after 7 years, and completely extinguished only in 1947. The Copșa Mică works The 1933 fire at the gas field led to the creation of a carbon black factory at Copșa Mică. The town is best known for its status (dating to the 1990s) as one of the most polluted in Europe; in fact, at some point it was the second most polluted after Chernobyl. This was due to the emissions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polarography
Polarography is a type of voltammetry where the working electrode is a dropping mercury electrode (DME) or a static mercury drop electrode (SMDE), which are useful for their wide cathodic ranges and renewable surfaces. It was invented in 1922 by Czechoslovakia, Czechoslovak chemist Jaroslav Heyrovský, for which he won the Nobel prize in 1959. The main advantages of mercury as electrode material are as follows: 1) a large voltage window: ca. from +0.2 V to -1.8 V vs reversible hydrogen electrode (RHE). Hg electrode is particularly well-suited for studying electroreduction reactions. 2) very reproducible electrode surface, since mercury is liquid. 3) very easy cleaning of the electrode surface by making a new drop of mercury from a large Hg pool connected by a glass capillary. Polarography played a major role as an experimental tool in the advancement of both Analytical Chemistry and Electrochemistry until the 1990s (see figure below), when it was supplanted by other methods that d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrocardiography
Electrocardiography is the process of producing an electrocardiogram (ECG or EKG), a recording of the heart's electrical activity through repeated cardiac cycles. It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart using electrodes placed on the skin. These electrodes detect the small electrical changes that are a consequence of cardiac muscle depolarization followed by repolarization during each cardiac cycle (heartbeat). Changes in the normal ECG pattern occur in numerous cardiac abnormalities, including: * Cardiac rhythmicity, Cardiac rhythm disturbances, such as atrial fibrillation and ventricular tachycardia; * Inadequate coronary artery blood flow, such as myocardial ischemia and myocardial infarction; * and electrolyte disturbances, such as hypokalemia. Traditionally, "ECG" usually means a 12-lead ECG taken while lying down as discussed below. However, other devices can record the electrical activity of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Five-Year Plans Of Romania
The Five-Year Plans of Romania (''Cincinal'' in Romanian, plural ''Cincinale'') were economic development projects in Communist Romania, largely inspired by the Soviet model. Starting from 1951, there were 8 five-year plans. Origins In 1948, the Communists had fully taken over the power in Romania and started to nationalize property and means of production. They began economic development and industrialization by adopting the Soviet concept of five-year plans that set a number of goals to fulfill by the end of the terms. The first five-year plan started out in 1951. Five-Year Plans 1951–1955 The first five-year plan took place between the years 1951 and 1955. Some of the 5 year plans are recorded on the countries postal stamp issues. They included: * The move to save and or stabilise the forests that had trees older than 200 years. * The reorganisation of farming and its efficiency. * Industrialisation. The five-year plan was adopted by the Great National Assembly on Decemb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Postcard
A postcard or post card is a piece of thick paper or thin cardboard, typically rectangular, intended for writing and mailing without an envelope. Non-rectangular shapes may also be used but are rare. In some places, one can send a postcard for a lower fee than a letter. Stamp collectors distinguish between postcards (which require a postage stamp) and postal cards (which have the postage pre-printed on them). While a postcard is usually printed and sold by a private company, individual or organization, a postal card is issued by the relevant postal authority (often with pre-printed postage). Production of postcards blossomed in the late 19th and early 20th centuries. As an easy and quick way for individuals to communicate, they became extremely popular. The study and collecting of postcards is termed ''deltiology'' (from Greek , small writing tablet, and the also Greek ''-logy'', the study of). History 1840 to 1864 Cards with messages have been sporadically created ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismometer
A seismometer is an instrument that responds to ground displacement and shaking such as caused by quakes, volcanic eruptions, and explosions. They are usually combined with a timing device and a recording device to form a seismograph. The output of such a device—formerly recorded on paper (see picture) or film, now recorded and processed digitally—is a ''seismogram''. Such data is used to locate and characterize earthquakes, and to study the internal structure of Earth. Basic principles A simple seismometer, sensitive to up-down motions of the Earth, is like a weight hanging from a spring, both suspended from a frame that moves along with any motion detected. The relative motion between the weight (called the mass) and the frame provides a measurement of the vertical ground motion. A rotating drum is attached to the frame and a pen is attached to the weight, thus recording any ground motion in a seismogram. Any movement from the ground moves the frame. The mass tends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Bromide
Silver bromide (AgBr), a soft, pale-yellow, water-insoluble salt well known (along with other silver halides) for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials. AgBr is widely used in photographic films and is believed by some to have been used for faking the Shroud of Turin. The salt can be found naturally as the mineral bromargyrite (bromyrite). Preparation Although the compound can be found in mineral form, AgBr is typically prepared by the reaction of silver nitrate with an alkali bromide, typically potassium bromide: :AgNO3(aq) + KBr(aq) → AgBr(s)+ KNO3(aq) Although less convenient, the salt can also be prepared directly from its elements. Modern preparation of a simple, light-sensitive surface involves forming an emulsion of silver halide crystals in a gelatine, which is then coated onto a film or other support. The crystals are formed by precipitation in a controlled environment to prod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technical Drawing
Technical drawing, drafting or drawing, is the act and discipline of composing drawings that visually communicate how something functions or is constructed. Technical drawing is essential for communicating ideas in industry and engineering. To make the drawings easier to understand, people use familiar symbols, perspectives, units of measurement, notation systems, visual styles, and page layout. Together, such conventions constitute a visual language and help to ensure that the drawing is unambiguous and relatively easy to understand. Many of the symbols and principles of technical drawing are codified in an international standard called ISO 128. The need for precise communication in the preparation of a functional document distinguishes technical drawing from the expressive drawing of the visual arts. Artistic drawings are subjectively interpreted; their meanings are multiply determined. Technical drawings are understood to have one intended meaning. A draftsman is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arithmetic
Arithmetic is an elementary branch of mathematics that deals with numerical operations like addition, subtraction, multiplication, and division. In a wider sense, it also includes exponentiation, extraction of roots, and taking logarithms. Arithmetic systems can be distinguished based on the type of numbers they operate on. Integer arithmetic is about calculations with positive and negative integers. Rational number arithmetic involves operations on fractions of integers. Real number arithmetic is about calculations with real numbers, which include both rational and irrational numbers. Another distinction is based on the numeral system employed to perform calculations. Decimal arithmetic is the most common. It uses the basic numerals from 0 to 9 and their combinations to express numbers. Binary arithmetic, by contrast, is used by most computers and represents numbers as combinations of the basic numerals 0 and 1. Computer arithmetic deals with the specificities of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romanian Leu
The Romanian leu (, plural lei ; ISO code: RON; numeric code: 946) is the currency of Romania. It is subdivided into 100 (, singular: ), a word that also means "money" in the Romanian language. Etymology The name of the currency means "lion", and is derived from the Dutch thaler ( "lion thaler/dollar"). The Dutch ''leeuwendaalder'' was imitated in several German and Italian cities. These coins circulated in Romania, Moldova and Bulgaria and gave their name to their respective currencies: the ''Romanian leu'', the ''Moldovan leu'' and the ''Bulgarian lev''. History First leu: 1867–1947 In 1860, the Domnitor Alexandru Ioan Cuza attempted to create a national ''românul'' ("the Romanian") and the ''romanat''; however, the project was not approved by the Ottoman Empire. On 22 April 1867, a bimetallic currency was adopted, with the leu equal to 5 grams of 83.5% silver or 0.29032 grams of gold. The first leu coin was minted in Romania in 1870. Before 1878 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
