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Traction Avant
Traction may refer to: Engineering *Forces: ** Traction (engineering), adhesive friction or force ** Traction vector, in mechanics, the force per unit area on a surface, including normal and shear components * Traction motor, an electric motor used for propulsion of a vehicle, for example a car or a locomotive * Railway electric traction, the use of electric motors to propel rail cars * Traction engine, a self-propelled steam engine Other uses * Traction (agency), San Francisco-based interactive advertising agency * Traction (orthopedics), a set of mechanisms for straightening broken bones or relieving pressure on the skeletal system * Traction (organization), a non-profit activism organization in North Carolina * ''Traction'' (album), by New Zealand band Supergroove * Traction TeamPage, a commercial blog/wiki software platform * Traction (The Batman), 2nd episode of ''The Batman'' * Traction (geology) Traction is the geologic Geology () is a branch of natural scienc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction (engineering)
Traction, or tractive force, is the force used to generate motion between a body and a tangential surface, through the use of dry friction, though the use of shear force of the surface is also commonly used. Traction can also refer to the ''maximum'' tractive force between a body and a surface, as limited by available friction; when this is the case, traction is often expressed as the ratio of the maximum tractive force to the normal force and is termed the ''coefficient of traction'' (similar to coefficient of friction). It is the force which makes an object move over the surface by overcoming all the resisting forces like friction, normal loads(load acting on the tiers in negative 'Z' axis), air resistance, rolling resistance, etc. Definitions Traction can be defined as: In vehicle dynamics, tractive force is closely related to the terms tractive effort and drawbar pull, though all three terms have different definitions. Coefficient of traction The ''coefficient of tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Vector
In continuum mechanics, the Cauchy stress tensor \boldsymbol\sigma, true stress tensor, or simply called the stress tensor is a second order tensor named after Augustin-Louis Cauchy. The tensor consists of nine components \sigma_ that completely define the state of stress at a point inside a material in the deformed state, placement, or configuration. The tensor relates a unit-length direction vector e to the traction vector T(e) across an imaginary surface perpendicular to e: :\mathbf^ = \mathbf e \cdot\boldsymbol\quad \text \quad T_^= \sigma_e_i, or, :\leftright\leftrightcdot \leftright The SI units of both stress tensor and traction vector are N/m2, corresponding to the stress scalar. The unit vector is dimensionless. The Cauchy stress tensor obeys the tensor transformation law under a change in the system of coordinates. A graphical representation of this transformation law is the Mohr's circle for stress. The Cauchy stress tensor is used for stress analysis of mater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Motor
A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles ( electric multiple units) and other electric vehicles including electric milk floats, elevators, roller coasters, conveyors, and trolleybuses, as well as vehicles with electrical transmission systems (diesel-electric locomotives, electric hybrid vehicles), and battery electric vehicles. Motor types and control Direct-current motors with series field windings are the oldest type of traction motors. These provide a speed-torque characteristic useful for propulsion, providing high torque at lower speeds for acceleration of the vehicle, and declining torque as speed increases. By arranging the field winding with multiple taps, the speed characteristic can be varied, allowing relatively smooth operator control of acceleration. A further measure of contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Electric Traction
Railway electric traction describes the various types of locomotive and multiple units that are used on electrification systems around the world. History Railway electrification as a means of traction emerged at the end of the nineteenth century, although experiments in electric rail have been traced back to the mid-nineteenth century. Thomas Davenport, in Brandon, Vermont, erected a circular model railroad on which ran battery-powered locomotives (or locomotives running on battery-powered rails) in 1834. Robert Davidson, of Aberdeen, Scotland, created an electric locomotive in 1839 and ran it on the Edinburgh-Glasgow railway at 4 miles per hour. The earliest electric locomotives tended to be battery-powered. In 1880, Thomas Edison built a small electrical railway, using a dynamo as the motor and the rails as the current-carrying medium. The electric current flowed through the metal rim of otherwise wooden wheels, being picked up via contact brushes. Electrical traction offere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction Engine
A traction engine is a steam engine, steam-powered tractor used to move heavy loads on roads, plough ground or to provide power at a chosen location. The name derives from the Latin ''tractus'', meaning 'drawn', since the prime function of any traction engine is to draw a load behind it. They are sometimes called road locomotives to distinguish them from railway steam locomotive, locomotives – that is, steam engines that run on rails. Traction engines tend to be large, robust and powerful, but also heavy, slow, and difficult to manoeuvre. Nevertheless, they revolutionized agriculture and road haulage at a time when the only alternative Prime mover (tractor unit), prime mover was the draught horse. They became popular in industrialised countries from around 1850, when the first self-propelled portable steam engines for agricultural use were developed. Production continued well into the early part of the 20th century, when competition from internal combustion engine-powered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction (agency)
Traction is an interactive advertising agency based in San Francisco. In 2014, they were named Independent Agency of the Year in the iMedia Agency Awards. Their clients include Alibaba.com, Adobe Systems, Bank of America, Cabot Creamery, California Bank & Trust, Camelbak, Intuit, Intel, Kelly-Moore Paints, Livescribe, Meebo, Robert Half International, Salesforce.com, SAP, and Shutterfly, Walmart, ZoneAlarm. History The agency was founded in 2001 as Traction Corporation by Adam Kleinberg, Paul Giese, Theo Fanning and Michele Turner. The founding partners had previously worked together at Think New Ideas, a new media pioneer with heavy investments from Omnicom. Michele Turner left the company in 2009. In 2006, Traction Corporation started a creative staffing agency called SubTraction. In 2009, Traction acquired 8 Speed Multimedia, a provider of dynamic media. The agency broadened its services to include Media in 2013. Awards and recognition 2008 * Selected by Adobe Sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco
San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of , at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include ''SF'', ''San Fran'', ''The '', ''Frisco'', and ''Baghdad by the Bay''. San Francisco and the surrounding San Francisco Bay Area are a global center of economic activity and the arts and sciences, spurred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction (orthopedics)
Traction is a set of mechanisms for straightening broken bones or relieving pressure on the spine and skeletal system. There are two types of traction: skin traction and skeletal traction. They are used in orthopedic medicine. Techniques Traction procedures have largely been replaced by more modern techniques, but certain approaches are still used today: * Milwaukee brace * Bryant's traction *Buck's traction, involving skin traction. It is widely used for femoral fractures, low back pain, acetabular fractures and hip fractures.Skin Traction - Lower Extremity from University of Stellenbosch, Department of Orthopaedic Surgery. Retrieved May 2, 2013 Skin traction rarely causes |
Traction (organization)
Traction is a progressive non-profit organization promoting civic engagement, based in the city of Durham, North Carolina. Traction's goal is to inform, inspire and connect a growing social network of left-leaning 20- and 30-somethings. The organization focuses on raising awareness of progressive issues including civil rights, health care, the environment, electoral fairness, economic justice and education. These topics are integrated into activities such as movies, dodgeball, art exhibitions, sushi-making workshops, potluck dinners and parties to create issue-based events which inform and mobilize the community for social action. Traction was founded in 2005 by Lanya Shapiro and became a project of the San Francisco-based Tides Center in early 2007. The group's funding sources include the Z. Smith Reynolds Foundation, Jonathan and Peter Lewis, and the Open Society Institute Open Society Foundations (OSF), formerly the Open Society Institute, is a grantmaking networ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Carolina
North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and South Carolina to the south, and Tennessee to the west. In the 2020 census, the state had a population of 10,439,388. Raleigh is the state's capital and Charlotte is its largest city. The Charlotte metropolitan area, with a population of 2,595,027 in 2020, is the most-populous metropolitan area in North Carolina, the 21st-most populous in the United States, and the largest banking center in the nation after New York City. The Raleigh-Durham-Cary combined statistical area is the second-largest metropolitan area in the state and 32nd-most populous in the United States, with a population of 2,043,867 in 2020, and is home to the largest research park in the United States, Research Triangle Park. The earliest evidence of human occupation i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Traction (album)
''Traction'' is the first album by New Zealand rock band Supergroove. It was released in 1994 by RCA Records, debuting at number one on the New Zealand albums chart and quickly reached platinum status there. Before the band could record their second album, Che Fu Che Kuo Eruera Ness (born 1974), better known by his stage name Che Fu, is a New Zealand hip hop, R&B and reggae artist, songwriter and producer. A founding member of the band Supergroove, as a solo artist he has gone on to sell thousands of ... was fired from the band. Supergroove would end up releasing their second and final album, '' Backspacer'', without Fu. To date, the album has achieved the requirements for platinum status five times over. Awards The album won Best Album at the 1995 New Zealand Music Awards. Track listing All tracks written by Joe (Fisher) Lonie and Karl Steven except "You Gotta Know (Remix)" by Lonie, Steven, and Che Fu. Charts References # Traction on allmusicguide/small> # {{Aut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
