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Trolleybuses In Tours
The Tours trolleybus system is a former urban public transport network that was operated with trolleybuses in the French city of Tours and three of its neighboring communes. The network extended to the west to La Riche, to the north to Saint-Cyr-sur-Loire, and to the east to Saint-Pierre-des-Corps. The trolleybus network, comprising three lines, commenced operation in early October 1949. The trolleybus network replaced a portion of the , which had been reorganized at the beginning of the 20th century, extensively damaged by World War II, and out of service since September 14, 1949. Other lines were served by buses. The trolleybus network underwent a period of gradual expansion and high frequency of service in the early 1960s in France, 1960s. By 1963, trolleybuses accounted for over 60% of public transport users in Tours. At its peak, the network had at most 22 vehicles. However, the network was rapidly dismantled beginning in 1964 and ceased operations on June 30, 1968. Followin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolleybus
A trolleybus (also known as trolley bus, trolley coach, trackless trolley, trackless tramin the 1910s and 1920sJoyce, J.; King, J. S.; and Newman, A. G. (1986). ''British Trolleybus Systems'', pp. 9, 12. London: Ian Allan Publishing. .or trolleyDunbar, Charles S. (1967). ''Buses, Trolleys & Trams''. Paul Hamlyn Ltd. (UK). Republished 2004 with or 9780753709702.) is an electric bus that draws power from dual overhead wires (generally suspended from roadside posts) using spring-loaded or pneumatically raised trolley poles. Overhead line#Parallel overhead lines, Two wires, and two trolley poles, are required to complete the electrical circuit. This differs from a tram or streetcar, which normally uses the track as the return path, needing only one wire and one pole (or pantograph (transport), pantograph). They are also distinct from other kinds of Battery electric bus, electric buses, which usually rely on Automotive battery, batteries. Power is most commonly supplied as 600-volt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Le Monde
(; ) is a mass media in France, French daily afternoon list of newspapers in France, newspaper. It is the main publication of Le Monde Group and reported an average print circulation, circulation of 480,000 copies per issue in 2022, including 40,000 sold abroad. It has been available online since 1995, and it is often the only French newspaper easily obtainable in non-French-speaking countries. It should not be confused with the monthly publication ', of which has 51% ownership but is editorially independent. is considered one of the French newspapers of record, along with ''Libération'' and . A Reuters Institute for the Study of Journalism, Reuters Institute poll in 2021 found that is the most trusted French newspaper. The paper's journalistic side has a collegial form of organization, in which most journalists are tenured, unionized, and financial stakeholders in the business. While shareholders appoint the company's CEO, the editor is elected by ''Le Monde''s journali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Déclaration D'utilité Publique
A ''déclaration d'utilité publique'' (), or declaration of public utility, is a formal recognition in French law that a proposed project has public benefits. The declaration must be obtained for many large construction projects in France or its old colonies, especially for infrastructure, before work can begin. Process The first part of the declaration is a public inquiry, usually started by a prefect, to collect the views of all affected parties. Responses from affected parties are considered by a commissioner, who assesses whether the proposal has an overall benefit for the public. If the finding is favourable, the declaration is granted by decree. Legal basis The ''déclaration d'utilité publique'' was initially required by article 545 of the Civil Code, which stipulates that property cannot be confiscated except for public purposes and with fair compensation. Criticism The public inquiry, when it enables informed debate, is considered one of the means of participatory de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voltage
Voltage, also known as (electrical) potential difference, electric pressure, or electric tension, is the difference in electric potential between two points. In a Electrostatics, static electric field, it corresponds to the Work (electrical), work needed per unit of Electric charge, charge to move a positive Test particle#Electrostatics, test charge from the first point to the second point. In the SI unit, International System of Units (SI), the SI derived unit, derived unit for voltage is the ''volt'' (''V''). The voltage between points can be caused by the build-up of electric charge (e.g., a capacitor), and from an electromotive force (e.g., electromagnetic induction in a Electric generator, generator). On a macroscopic scale, a potential difference can be caused by electrochemical processes (e.g., cells and batteries), the pressure-induced piezoelectric effect, and the thermoelectric effect. Since it is the difference in electric potential, it is a physical Scalar (physics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Current
Direct current (DC) is one-directional electric current, flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor (material), conductor such as a wire, but can also flow through semiconductors, electrical insulation, insulators, or even through a vacuum as in electron beam, electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC). A archaism, term formerly used for this type of current was galvanic current. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''Electric current, current'' or ''voltage''. Direct current may be converted from an alternating current supply by use of a rectifier, which contains Electronics, electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1973 Oil Crisis
In October 1973, the Organization of Arab Petroleum Exporting Countries (OAPEC) announced that it was implementing a total oil embargo against countries that had supported Israel at any point during the 1973 Yom Kippur War, which began after Egypt and Syria launched a large-scale surprise attack in an ultimately unsuccessful attempt to recover the territories that they had lost to Israel during the 1967 Six-Day War. In an effort that was led by Faisal of Saudi Arabia, the initial countries that OAPEC targeted were Canada, Japan, the Netherlands, the United Kingdom, and the United States. This list was later expanded to include Estado Novo (Portugal), Portugal, Rhodesia, and South Africa. In March 1974, OAPEC lifted the embargo, but the price of oil had risen by nearly 300%: from US to nearly US globally. Prices in the United States were significantly higher than the global average. After it was implemented, the embargo caused an oil crisis, or "shock", with many short- and long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saviem
The Société Anonyme de Véhicules Industriels et d'Équipements Mécaniques (), commonly known by the acronym Saviem (), was a French manufacturer of trucks and buses/coaches part of the Renault group, headquartered in Suresnes, Île-de-France. The company was established in 1955 by merging Renault heavy vehicle operations with Somua and Latil and disappeared in 1978 when was merged with former rival Berliet to form Renault Véhicules Industriels. The company initially had various factories for vehicle production around France (mainly at the Paris area) which came from its predecessors and Chausson, but it soon centred assembly on Blainville-sur-Orne (trucks) and Annonay (buses and coaches). Saviem formed partnerships with other manufacturers, leading to technology-sharing agreements. History Early years At the end of 1946, Renault abandoned the production of heavy trucks in view of its financial troubles, and the company lost the position of France's market leader wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design Studio
A studio is a space set aside for creative work of any kind, including art, dance, music and theater. The word ''studio'' is derived from the , from , from ''studere'', meaning to study or zeal. Types Art The studio of any artist, especially from the 15th to the 19th centuries, characterized all the assistants, thus the designation of paintings as "from the workshop of..." or "studio of..." An art studio is sometimes called an " atelier", especially in earlier eras. In contemporary, English language use, "atelier" can also refer to the Atelier Method, a training method for artists that usually takes place in a professional artist's studio. The above-mentioned "method" calls upon that zeal for study to play a significant role in the production which occurs in a studio space. A studio is more or less artful to the degree that the artist who occupies it is committed to the continuing education in his or her formal discipline. Academic curricula categorize studio classes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transloading
Transloading, also known as cross-docking, is the process of transferring a shipment from one mode of transportation to another. It is most commonly employed when one mode cannot be used for the entire trip, such as when goods must be shipped internationally from one inland point to another. Such a trip might require transport by truck to an airport, then by airplane overseas, and then by another truck to its destination; or it might involve bulk material (such as coal) loaded to Hopper car, rail at the Mining, mine and then transferred to a ship at a port. Transloading is also required at railroad break of gauge, break-of-gauge points, since the equipment can not pass from one track to another unless Bogie exchange, bogies are exchanged. Since transloading requires handling of the goods, it causes a higher risk of damage. Therefore, transloading facilities are designed with the intent of minimizing handling. Due to differing capacities of the different modes, the facilities typi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolleybus Tours - Réseau
A trolleybus (also known as trolley bus, trolley coach, trackless trolley, trackless tramin the 1910s and 1920sJoyce, J.; King, J. S.; and Newman, A. G. (1986). ''British Trolleybus Systems'', pp. 9, 12. London: Ian Allan Publishing. .or trolleyDunbar, Charles S. (1967). ''Buses, Trolleys & Trams''. Paul Hamlyn Ltd. (UK). Republished 2004 with or 9780753709702.) is an electric bus that draws power from dual overhead wires (generally suspended from roadside posts) using spring-loaded or pneumatically raised trolley poles. Two wires, and two trolley poles, are required to complete the electrical circuit. This differs from a tram or streetcar, which normally uses the track as the return path, needing only one wire and one pole (or pantograph). They are also distinct from other kinds of electric buses, which usually rely on batteries. Power is most commonly supplied as 600-volt direct current in older systems and 750-volts in newer systems, but there are exceptions. Currently, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolley Pole
A trolley pole is a tapered cylindrical pole of wood or metal, used to transfer electricity from a "live" (electrified) overhead line, overhead wire to the control and the electric traction motors of a tram or trolley bus. It is a type of current collector. The use of overhead wire in a system of current collection is reputed to be the 1880 invention of Frank J. Sprague, but the first working trolley pole was developed and demonstrated by Charles Joseph Van Depoele, Charles Van Depoele, in autumn 1885.William D. Middleton, Middleton, William D. (1967). ''The Time of the Trolley'', pp. 63–65, 67. Milwaukee: Kalmbach Publishing. . History An early development of an experimental tramway in Toronto, Ontario, was built in 1883, having been developed by John Joseph Wright (inventor), John Joseph Wright, brother of swindler Whitaker Wright. While Wright may have assisted in the installation of electric railways at the Canadian National Exhibition (CNE), and may even have used a pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and the consumer, electric power may flow through several substations at different voltage levels. A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. They are a common component of the infrastructure. There are 55,000 substations in the United States. Substations are also occasionally known in some countries as switchyards. Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control. The word ''substation'' comes from the days before the distri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
