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Hembrug Machine Tools
The name Hembrug refers to various geographic entities in the municipality of Zaanstad, in the Netherlands. Area The area called ''Hembrug'' was formerly a ''hem'', that is, a headland later diked in to become part of a polder. Originally called ''De Hem'', it later became named after the bridge across the North Sea Canal; see below. Bridge The ''Hembrug'' is the name given to a swing bridge built in 1878 to carry the railroad between Amsterdam and Zaandam in the Netherlands across the North Sea Canal, and to its replacement, a longer and higher bridge built between 1903 and 1907, after the canal had been widened to cater for an increase in ship traffic. The newer bridge was approached by a long embankment, to enable the railroad to reach deck level on a moderate grade or slope. During World War II, the bridge, which provided railroad access to the northern part of Holland, was rigged with demolition charges by the Germans, who loaded the central pier with 400 boxes, each containi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steel Bridges In The Netherlands
Steel is an alloy of iron and carbon that demonstrates improved mechanical properties compared to the pure form of iron. Due to steel's high elastic modulus, yield strength, fracture strength and low raw material cost, steel is one of the most commonly manufactured materials in the world. Steel is used in structures (as concrete reinforcing rods), in bridges, infrastructure, tools, ships, trains, cars, bicycles, machines, electrical appliances, furniture, and weapons. Iron is always the main element in steel, but other elements are used to produce various grades of steel demonstrating altered material, mechanical, and microstructural properties. Stainless steels, for example, typically contain 18% chromium and exhibit improved corrosion and oxidation resistance versus its carbon steel counterpart. Under atmospheric pressures, steels generally take on two crystalline forms: body-centered cubic and face-centered cubic, however depending on the thermal history and alloying, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Bridges In The Netherlands
Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in tracks, which usually consist of two parallel steel rails. Rail transport is one of the two primary means of land transport, next to road transport. It is used for about 8% of passenger and freight transport globally, thanks to its energy efficiency and potentially high speed.Rolling stock on rails generally encounters lower frictional resistance than rubber-tyred road vehicles, allowing rail cars to be coupled into longer trains. Power is usually provided by diesel or electric locomotives. While railway transport is capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energy efficiency and safety. Precursors of railways driven by human or animal power have existed since antiquity, but modern rail transport began with the invention of the steam locomotive in the United Kingdom at the beginning of the 19th c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Former Railway Bridges
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature. A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being used in the construction process and then discarded or re-used. Aircraft formers Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose cone to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability. Formers are typically attached to longerons, which support the skin of the aircraft. The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction, and was typical of light aircraft built until th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krommenie
Krommenie () is a town in the Dutch province of North Holland. It is a part of the municipality of Zaanstad, and lies about 15 km northeast of Haarlem. History Krommenie developed in the 11th century as a peat excavation settlement. In 1702, it severely damaged by fire. During the 19th century, Krommenie started to industrialise. The Dutch Reformed church is a single aisled church from the 15th century. It was severely damaged in 1574 by fire and extensively modified and restored between 1657 and 1658. The Old Catholic Church was built in 1602 as a clandestine church in a farm. It was enlarged in 1633 and modified in 1826. Krommenie was a separate municipality until 1974, when the new municipality of Zaanstad was created. Krommenie is the first town in the world to have a solar bikepath ( SolaRoad), a path made of a transparent surface over solar cells to generate electricity fed back to the grid. The path, over 70 meters long, was to test engineering feasibility. Train ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Station Master
The station master (or stationmaster) is the person in charge of a Train station, railway station, particularly in the United Kingdom and many other countries outside North America. In the United Kingdom, where the term originated, it is now largely historical or colloquial, with the contemporary term being station manager. However, the term ''station master'' remains current on many heritage railways, and also in many countries outside the United Kingdom, notably the extensive Indian Railways network. Historically a male occupation, women were sometimes appointed to the position, and the gender variation ''station mistress'' was sometimes employed in such cases. In the United States the role is commonly termed station agent. Job description The station master is responsible for the management of other station Employment, employees and holds responsibility for safety and the efficient running of the station. The term was historically employed across stations of all sizes, leadin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Activated Carbon
Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses. It is processed (activated) to have small, low-volume pores that greatly increase the surface area available for ''adsorption '' or chemical reactions. (Adsorption, not to be confused with Absorption (chemistry), absorption, is a process where atoms or molecules adhere to a surface). The pores can be thought of as a microscopic "sponge" structure. Activation is analogous to making popcorn from dried corn kernels: popcorn is light, fluffy, and its kernels have a high surface-area-to-volume ratio. ''Activated'' is sometimes replaced by ''active''. Because it is so porous on a microscopic scale, one gram of activated carbon has a surface area of over , as determined by gas absorption and its porosity can run 10ML/day in terms of treated water per gram. Researchers at Cornell University synthesized an ultrahigh surface area activated ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
State-owned Enterprise
A state-owned enterprise (SOE) is a business entity created or owned by a national or local government, either through an executive order or legislation. SOEs aim to generate profit for the government, prevent private sector monopolies, provide goods at lower prices, implement government policies, or serve remote areas where private businesses are scarce. The government typically holds full or majority ownership and oversees operations. SOEs have a distinct legal structure, with financial and developmental goals, like making services more accessible while earning profit (such as a state railway). They can be considered as government-affiliated entities designed to meet commercial and state capitalist objectives. Terminology The terminology around the term state-owned enterprise is murky. All three words in the term are challenged and subject to interpretation. First, it is debatable what the term "state" implies (e.g., it is unclear whether municipally owned corporations and ente ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillerie-Inrichtingen
Artillerie-Inrichtingen was a Dutch state-owned artillery, small arms, and munitions company which also produced machine tools and was founded in 1679 in Delft, Netherlands. The company was split in 1973 with its defense related businesses becoming Eurometaal and its civilian manufacturing becoming Hembrug Machine Tools. During its years of operation as Artillerie Inrichtingen, the company manufactured armaments and an array of other industrial outputs for the Dutch Army and the Royal Netherlands East Indies Army, Royal Dutch East Indies Army (KNIL). History The tribulations of the 1672 in the Netherlands, year 1672 emphasized the neglected state in which the army of Dutch Republic, the Republic of the Seven Provinces found itself. Therefore, in 1677, William III of England, Willem III of Orange founded the corps artillery. In 1679 the State Prosecution Company in Delft was established. It was not the only one in the Netherlands. For example, the Grof Geschut Gieterijin in The Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rijksmonument
A (, ) is a national heritage site of the Netherlands, listed by the agency Rijksdienst voor het Cultureel Erfgoed (RCE) acting for the Dutch Ministry of Education, Culture and Science. At the end of February 2015, the Netherlands had 61,822 listed national heritage sites, of which approximately 1,500 are listed as archaeological sites. History and criteria Until 2012, a place had to be over 50 years old to be eligible for designation. This criterion expired on 1 January 2012. The current legislation governing the monuments is the ''Monumentenwet van 1988'' ("Monument Law of 1988"). The organization responsible for caring for the monuments, which used to be called ''Monumentenzorg'', was recently renamed, and is now called Rijksdienst voor het Cultureel Erfgoed (national service for cultural heritage). In June 2009, the Court of The Hague decided that individual purchasers of buildings that were listed as rijksmonuments would be exempt from paying transfer tax, effective f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zaanstad
Zaanstad () is a Municipalities of the Netherlands, Dutch municipality in the province of North Holland, situated northwest of Amsterdam. Its main city is Zaandam. It is part of the conurbation and Amsterdam metropolitan area, metropolitan area of Amsterdam. It had a population of in . Topography Population centres The municipality of Zaanstad is a conurbation consisting of the cities, towns and villages of: Assendelft, Koog aan de Zaan, Krommenie, Westzaan, Wormerveer, Zaandam and Zaandijk. However, being surrounded by countryside and due to its relatively protracted shape that follows the river Zaan, a rural atmosphere is always nearby. Railway stations in Zaanstad * Koog aan de Zaan railway station (formerly Koog Bloemwijk) * Krommenie-Assendelft railway station * Wormerveer railway station * Zaandam railway station * Zaandam Kogerveld railway station * Zaandijk Zaanse Schans railway station (formerly Koog-Zaandijk) Local government The municipal council of Zaanstad consi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
