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Avelia Horizon
The TGV M (also known as the Avelia Horizon) is a high speed passenger train designed and produced by the French rolling stock manufacturer Alstom. It has a broadly similar design to the TGV Duplex sets, with bi-level carriages and a push-pull configuration with a power car on either end. However, it is more energy efficient and provides lower operation costs. Development of the TGV-M originated with SNCF's launch of a program to procure a new generation of high speed trains in 2015. During May 2016, the Alstom-headed ''Speedinnov'' joint venture was selected as the winning bidder for the program; on 7 September 2016, SNCF and Alstom signed an agreement to design and build the new trains. During July 2018, SNCF placed a €2.7 billion order for 100 trainsets, then referred to as the ''Avelia Horizon''. Production of the first bodyshells commenced in mid-2020; two years later, dynamic testing was underway. The TGV M is expected to enter service with the French train operator SNCF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alstom
Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia and New Pendolino high-speed trains, in addition to suburban, regional and metro trains, and Citadis trams. Alsthom (originally Als-Thom) was formed by a merger between Compagnie Française Thomson-Houston and the electric engineering division of Société Alsacienne de Constructions Mécaniques in 1928. Significant later acquisitions included the Constructions Electriques de France (1932), shipbuilder Chantiers de l'Atlantique (1976), and parts of ACEC (Belgium, late-1980s). A merger with parts of the General Electric Company (UK) formed GEC Alsthom in 1989. Throughout the 1990s, the company expanded its holdings in the rail sector, via the acquisition of German rolling stock manufacturer Linke-Hofmann-Busch and Italian rail signall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Car Sharing
Carsharing or car sharing (AU, NZ, CA, TH, & US) or car clubs (UK) is a model of car rental where people rent cars for short periods of time, often by the hour. It differs from traditional car rental in that the owners of the cars are often private individuals themselves, and the carsharing facilitator is generally distinct from the car owner. Carsharing is part of a larger trend of shared mobility. Carsharing enables an occasional use of a vehicle or access to different brands of vehicles. The renting organization may be a commercial business. Users can also organize as a company, public agency, cooperative, or ''ad hoc'' grouping. The network of cars on the network becomes available to the users through a variety of means, ranging from the simplicity of using an app to unlock the car in real time, to meeting the owner of the car in order to exchange keys. As of January 2020 the world's top city for car sharing is Moscow with more than 30,000 vehicles (though in Moscow almost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avelia Liberty
Avelia Liberty, also known as the Acela II, is a high-speed passenger train built for the North American market by French manufacturer Alstom and assembled in the United States. Amtrak has ordered 28 trainsets for use on its flagship ''Acela'' service along the Northeast Corridor between Boston and Washington, D.C., via New York City and Philadelphia. It is part of the Avelia family of high-speed trains, which also includes the Avelia Horizon (now known as TGV M) designed for the TGV, but adapted to conform with North American railroad standards, including U.S. Federal Railroad Administration crashworthiness standards. Amtrak says that compared to the prior generation, these trainsets would allow for improved frequency and greater capacity on the ''Acela'' service. , two prototype trainsets were undergoing testing and construction of the other trainsets was ongoing. Trains are expected to enter passenger service in the fall of 2023. History In August 2016, Amtrak announced a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Predictive Maintenance
Predictive maintenance techniques are designed to help determine the condition of in-service equipment in order to estimate when maintenance should be performed. This approach promises cost savings over routine or time-based preventive maintenance, because tasks are performed only when warranted. Thus, it is regarded as condition-based maintenance carried out as suggested by estimations of the degradation state of an item. The main promise of predictive maintenance is to allow convenient scheduling of corrective maintenance, and to prevent unexpected equipment failures. The key is "the right infor equipment lifetime, increased plant safety, fewer accidents with negative impact on environment, and optimized spare parts handling. Predictive maintenance differs from preventive maintenance because it relies on the actual condition of equipment, rather than average or expected life statistics, to predict when maintenance will be required. Typically, Machine Learning approaches are ado ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Footprint
A carbon footprint is the total greenhouse gas (GHG) emissions caused by an individual, event, organization, service, place or product, expressed as carbon dioxide equivalent (CO2e). Greenhouse gases, including the carbon-containing gases carbon dioxide and methane, can be emitted through the burning of fossil fuels, land clearance, and the production and consumption of food, manufactured goods, materials, wood, roads, buildings, transportation and other services. In most cases, the total carbon footprint cannot be calculated exactly because of inadequate knowledge of data about the complex interactions between contributing processes, including the influence of natural processes that store or release carbon dioxide. For this reason, Wright, Kemp, and Williams proposed the following definition of a carbon footprint: The Greenhouse Gas Protocol has extended the range of gases. The global average annual carbon footprint per person in 2014 was about 5 tonnes CO2e. Although the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regenerative Brake
Regenerative braking is an energy recovery mechanism that slows down a moving vehicle or object by converting its kinetic energy into a form that can be either used immediately or stored until needed. In this mechanism, the electric traction motor uses the vehicle's momentum to recover energy that would otherwise be lost to the brake discs as heat. This method contrasts with conventional braking systems. In those systems, the excess kinetic energy is converted to unwanted and wasted heat due to friction in the brakes, or with rheostatic brakes, where the energy is recovered by using electric motors as generators but is immediately dissipated as heat in resistors. In addition to improving the overall efficiency of the vehicle, regeneration can significantly extend the life of the braking system as the mechanical parts will not wear out quickly. General principle The most common form of regenerative brake involves an electric motor functioning as an electric generator. In elect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Conditioning
Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling the humidity of internal air. Air conditioning can be achieved using a mechanical 'air conditioner' or alternatively a variety of other methods, including passive cooling or ventilative cooling. Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). Heat pumps are similar in many ways to air conditioners, but use a reversing valve to allow them to both heat and also cool an enclosed space. Air conditioners, which typically use vapor-compression refrigeration, range in size from small units used within vehicles or single rooms to massive units that can cool large buildings. Air source heat pumps, which can be used for heating as well as cooling, are becoming incre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WiFi
Wi-Fi () is a family of wireless network protocols, based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks in the world, used globally in home and small office networks to link desktop and laptop computers, tablet computers, smartphones, smart TVs, printers, and smart speakers together and to a wireless router to connect them to the Internet, and in wireless access points in public places like coffee shops, hotels, libraries and airports to provide visitors with Internet access for their mobile devices. ''Wi-Fi'' is a trademark of the non-profit Wi-Fi Alliance, which restricts the use of the term ''Wi-Fi Certified'' to products that successfully complete interoperability certification testing. the Wi-Fi Alliance consisted of more than 800 companies from around the world. over 3.05 billion W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modular
Broadly speaking, modularity is the degree to which a system's components may be separated and recombined, often with the benefit of flexibility and variety in use. The concept of modularity is used primarily to reduce complexity by breaking a system into varying degrees of interdependence and independence across and "hide the complexity of each part behind an abstraction and interface". However, the concept of modularity can be extended to multiple disciplines, each with their own nuances. Despite these nuances, consistent themes concerning modular systems can be identified. Contextual nuances The meaning of the word "modularity" can vary somewhat based on context. The following are contextual examples of modularity across several fields of science, technology, industry, and culture: Science *In biology, modularity recognizes that organisms or metabolic pathways are composed of modules. *In ecology, modularity is considered a key factor—along with diversity and feedback—in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Articulated Car
Articulated cars are rail vehicles which consist of a number of cars which are semi-permanently attached to each other and share common Jacobs bogies or axles and/or have car elements without axles suspended by the neighbouring car elements. They are much longer than single passenger cars. Because of the difficulty and cost of separating each car from the next, they are operated as a single unit, often called a ''trainset''. Passenger cars Articulated passenger cars are becoming increasingly common in Europe and the US. The passageways between the car elements are permanently attached. There is a safety benefit claimed that if the train derails, it is less likely to jackknife and modern construction techniques prevent telescoping. Articulated cars are not, however, a new idea. Many railways in Britain during the first half of the 20th century frequently rebuilt older, shorter cars into articulated sets, and the Great Northern Railway in Britain built suburban car sets n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Push–pull Train
Push–pull is a configuration for locomotive-hauled trains, allowing them to be driven from either end of the train, whether having a locomotive at each end or not. A push–pull train has a locomotive at one end of the train, connected via some form of remote control, such as multiple-unit train control, to a vehicle equipped with a control cab at the other end of the train. This second vehicle may be another locomotive, or an unpowered control car. In the UK and some other parts of Europe, the control car is referred to as a ''driving trailer'' (or driving van trailer/DVT where there is no passenger accommodation); in the US and Canada, they are called ''cab cars''. Train formation Locomotive at one end Historically, push–pull trains with steam power provided the driver with basic controls at the cab end along with a bell or other signalling code system to communicate with the fireman located in the engine itself in order to pass commands to adjust controls not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Rochelle
La Rochelle (, , ; Poitevin-Saintongeais: ''La Rochéle''; oc, La Rochèla ) is a city on the west coast of France and a seaport on the Bay of Biscay, a part of the Atlantic Ocean. It is the capital of the Charente-Maritime department. With 75,735 inhabitants in 2017, La Rochelle is the most populated commune in the department and ranks fifth in the New Aquitaine region after Bordeaux, the regional capital, Limoges, Poitiers and Pau. Its inhabitants are called "les Rochelaises" and "les Rochelais". Situated on the edge of the Atlantic Ocean the city is connected to the Île de Ré by a bridge completed on 19 May 1988. Since the Middle-Ages the harbour has opened onto a protected strait, the Pertuis d'Antioche and is regarded as a "Door océane" or gateway to the ocean because of the presence of its three ports (fishing, trade and yachting). The city has a strong commercial tradition, having an active port from very early on in its history. La Rochelle underwent sustained ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
