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Road-powered Electric Vehicle
Road powered electric vehicles (RPEV) (sometimes called roadway powered electric vehicles) collect any form of potential energy from the road surface to supply electricity to locomotive motors and ancillary equipment within the vehicle. Definition A Road Powered electric vehicle may be defined as a transport capsule with the following characteristics: # The principal means of locomotion is one or more electric motor(s) # The electric motors are powered by an electrical supply provided either from a battery (usually on-board) or power source (typically remote, and connected directly via conductive cables or magnetic inductive fields # There is a defined roadway over which the vehicle travels (that means, although it may have some on-board battery reserve, is not intended to be a cross country vehicle) # Where an external electric supply is provided, this is typically with overhead conductors or above-ground rails or (rarely) sub-surface electro-magnets. # An all-electric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potential Energy
In physics, potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors. Common types of potential energy include the gravitational potential energy of an object, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field. The unit for energy in the International System of Units (SI) is the joule, which has the symbol J. The term ''potential energy'' was introduced by the 19th-century Scottish engineer and physicist William Rankine, although it has links to Greek philosopher Aristotle's concept of Potentiality and Actuality, potentiality. Potential energy is associated with forces that act on a body in a way that the total work done by these forces on the body depends only on the initial and final positions of the body in space. These forces, that are called Conservative force, ''conservative forces'', can b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resonant
Resonance describes the phenomenon of increased amplitude that occurs when the frequency of an applied periodic force (or a Fourier component of it) is equal or close to a natural frequency of the system on which it acts. When an oscillating force is applied at a resonant frequency of a dynamic system, the system will oscillate at a higher amplitude than when the same force is applied at other, non-resonant frequencies. Frequencies at which the response amplitude is a relative maximum are also known as resonant frequencies or resonance frequencies of the system. Small periodic forces that are near a resonant frequency of the system have the ability to produce large amplitude oscillations in the system due to the storage of vibrational energy. Resonance phenomena occur with all types of vibrations or waves: there is mechanical resonance, orbital resonance, acoustic resonance, electromagnetic resonance, nuclear magnetic resonance (NMR), electron spin resonance (ESR) and res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ground-level Power Supply
Ground-level power supply, also known as surface current collection or, in French, ''alimentation par le sol'' ("feeding via the ground"), is a concept and group of technologies whereby electric vehicles collect electric power at ground level from individually-powered segments instead of the more common overhead lines. Ground-level power supply has been used primarily for aesthetic reasons. During the late 2010s it has become more economical than overhead lines. Ground-level power supply systems date back to the beginning of Tram#Electric, electric tramways, with some of the earliest such systems using #Early systems, conduit current collection. Since the turn of the 21st century, new systems such as the #Alstom APS, Alstom APS, #Ansaldo Tramwave, Ansaldo Tramwave, #CAF ACR, CAF ACR, #Elways, Elways, and others have been introduced which use modern technology to address some of the limitations and dangers of the older systems, and supply power for buses, trucks, and electric cars. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CCC RPEV
CCC may refer to: Arts and entertainment * Canada's Capital Cappies, the Critics and Awards Program in Ottawa, Ontario, Canada * ''Capcom Classics Collection'', a 2005 compilation of arcade games for the PlayStation 2 and Xbox * CCC, the production code for the 1970 ''Doctor Who'' serial ''The Ambassadors of Death'' Music * Canadian Chamber Choir, a national choral ensemble for Canadian singers, conductors and composers * "Candy Cane Children", a single by The White Stripes * The Color Changin' Click, a rap group which was started by rapper Chamillionaire Christianity * Calvinist Cadet Corps, Christian mentoring organization * Campus Crusade for Christ, the original name of the interdenominational Christian organization now known as Cru * Canadian Council of Churches, an ecumenical Christian forum of churches in Canada * ''Catechism of the Catholic Church'', an official exposition (catechism) of the teachings of the Roman Catholic Church * Celestial Church of Christ, an i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SARS RPEV
Severe acute respiratory syndrome (SARS) is a viral respiratory disease Respiratory diseases, or lung diseases, are pathological conditions affecting the organs and tissues that make gas exchange difficult in air-breathing animals. They include conditions of the respiratory tract including the trachea, bronchi, ... of zoonotic origin caused by the severe acute respiratory syndrome coronavirus (SARS-CoV or SARS-CoV-1), the first identified strain of the SARS coronavirus species, ''severe acute respiratory syndrome–related coronavirus'' (SARSr-CoV). The first known cases occurred in November 2002, and the syndrome caused the 2002–2004 SARS outbreak. In the 2010s, Chinese scientists traced the virus through the intermediary of Asian palm civets to cave-dwelling horseshoe bats in Xiyang Yi Ethnic Township, Yunnan.The locality was referred to be "a cave in Kunming" in earlier sources because the Xiyang Yi Ethnic Township is administratively part of Kunming, though 70 km ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continuous Transit
Continuity or continuous may refer to: Mathematics * Continuity (mathematics), the opposing concept to discreteness; common examples include ** Continuous probability distribution or random variable in probability and statistics ** Continuous game, a generalization of games used in game theory ** Law of Continuity, a heuristic principle of Gottfried Leibniz * Continuous function, in particular: ** Continuity (topology), a generalization to functions between topological spaces ** Scott continuity, for functions between posets ** Continuity (set theory), for functions between ordinals ** Continuity (category theory), for functors ** Graph continuity, for payoff functions in game theory * Continuity theorem may refer to one of two results: ** Lévy's continuity theorem, on random variables ** Kolmogorov continuity theorem, on stochastic processes * In geometry: ** Parametric continuity, for parametrised curves ** Geometric continuity, a concept primarily applied to the conic sectio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trolleybuses
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 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, but there are exceptions. Currently, around 300 trolleybus systems are in operation, in cities and towns in 4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tram Train 1907
A tram (called a streetcar or trolley in North America) is a rail vehicle that travels on tramway tracks on public urban streets; some include segments on segregated Right-of-way (transportation), right-of-way. The tramlines or networks operated as public transport are called tramways or simply trams/streetcars. Many recently built tramways use the contemporary term light rail. The vehicles are called streetcars or trolleys (not to be confused with trolleybus) in North America and trams or tramcars elsewhere. The first two terms are often used interchangeably in the United States, with ''trolley'' being the preferred term in the eastern US and ''streetcar'' in the western US. ''Streetcar'' or ''tramway'' are preferred in Canada. In parts of the United States, internally powered buses made to resemble a streetcar are often referred to as "trolleys". To avoid further confusion with trolley buses, the American Public Transportation Association (APTA) refers to them as "trolley- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Positioning System
A positioning system is a system for determining the position of an object in space. One of the most well-known and commonly used positioning systems is the Global Positioning System (GPS). Positioning system technologies exist ranging from worldwide coverage with meter accuracy to workspace coverage with sub-millimeter accuracy. Coverage Interplanetary systems Interplanetary-radio communication systems not only communicate with spacecraft, but they are also used to determine their position. Radar can track targets near the Earth, but spacecraft in deep space must have a working transponder on board to echo a radio signal back. Orientation information can be obtained using star trackers. Global systems Global navigation satellite systems (GNSS) allow specialized radio receivers to determine their 3-D space position, as well as time, with an accuracy of 2–20 metres or tens of nanoseconds. Currently deployed systems use microwave signals that can only be received reliabl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cargo
Cargo consists of bulk goods conveyed by water, air, or land. In economics, freight is cargo that is transported at a freight rate for commercial gain. ''Cargo'' was originally a shipload but now covers all types of freight, including transport by rail, van, truck, or intermodal container. The term cargo is also used in case of goods in the cold-chain, because the perishable inventory is always in transit towards a final end-use, even when it is held in cold storage or other similar climate-controlled facility. The term freight is commonly used to describe the movements of flows of goods being transported by any mode of transportation. Multi-modal container units, designed as reusable carriers to facilitate unit load handling of the goods contained, are also referred to as cargo, especially by shipping lines and logistics operators. Similarly, aircraft ULD boxes are also documented as cargo, with an associated packing list of the items contained within. When empty conta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passenger
A passenger (also abbreviated as pax) is a person who travels in a vehicle, but does not bear any responsibility for the tasks required for that vehicle to arrive at its destination or otherwise operate the vehicle, and is not a steward. The vehicles may be bicycles, buses, passenger trains, airliners, ships, ferryboats, and other methods of transportation. Crew members (if any), as well as the driver or pilot of the vehicle, are usually not considered to be passengers. For example, a flight attendant on an airline would not be considered a passenger while on duty and the same with those working in the kitchen or restaurant on board a ship as well as cleaning staff, but an employee riding in a company car being driven by another person would be considered a passenger, even if the car was being driven on company business. Railways In railway parlance, passenger, as well as being the end user of a service, is also a categorisation of the type of rolling stock used.Simmons ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
