The Dutch teenager and Raikkonen tangled wheels, with the Finn's car slewing sideways and into Vettel's before again careering into the Red Bull and also collecting Fernando Alonso's McLaren.
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The first time I'd driven near here, I'd had to detour into the countryside, slewing and skidding on goopy rain-sodden roads in slurries of mud, through a thunderstorm with three hitchhikers.
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The concept of "slewing," or rotating around an axis—usually the z axis, in the case of aircraft—was as a result an important one, and one that the trackball made easy to control.
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Shareholders in Thyssenkrupp will continue to hold all of Thyssenkrupp Materials, which will comprise materials services, a 50 percent stake in the joint venture with Tata Steel, slewing bearings and forging businesses and a marine business.
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NS) announced earlier this year - Marine Systems, Thyssenkrupp's struggling shipbuilding division will also be a part of this business, as will the company's slewing bearings and forging operations ($1 = 0.8621 euros) Reporting by Christoph Steitz in Frankfurt; Editing by Mark Potter and David Goodman
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Slewing is the rotation of an object around an axis, usually the z axis. An example is a radar scanning 360 degrees by slewing around the z axis. This is also common terminology in astronomy. The process of rotating a telescope to observe a different region of the sky is referred to as slewing.
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Moving to the location is called slewing. The disconnected hand control of a GoTo telescope mount. The large arrow buttons are used for slewing the telescope. Below these, the number buttons are used for both inputting information and selecting which catalogue to choose objects from.
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The slewing drive is a gearbox that can safely hold radial and axial loads, as well as transmit a torque for rotating. The rotation can be in a single axis, or in multiple axes together. Slewing drives are made by manufacturing gearing, bearings, seals, housing, motor and other auxiliary components and assembling them into a finished gearbox.
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As the kingpost of these cranes was part of the jib, but not part of the slewing bearing, it was placed further outboard, at the edge of the slewing track or large ring bearing, rather than on the pixot axis, as for Port Alfred. This makes the most of the truss' span for increasing the reach of the jib.
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The output of newer so-called "rail to rail" op amps can reach to within millivolts of the supply rails when providing low output currents. ; Slewing: The amplifier's output voltage reaches its maximum rate of change, the slew rate, usually specified in volts per microsecond (V/μs). When slewing occurs, further increases in the input signal have no effect on the rate of change of the output. Slewing is usually caused by the input stage saturating; the result is a constant current driving a capacitance in the amplifier (especially those capacitances used to implement its frequency compensation); the slew rate is limited by .
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Many slewing drive concepts found prominence with the emergence of larger scale construction and engineering in the height of the Greek and Roman Empires.
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A polar mount is a movable mount for satellite dishes that allows the dish to be pointed at many geostationary satellites by slewing around one axis.Explanation of satellite antenna polar mount It works by having its slewing axis parallel, or almost parallel, to the Earth's polar axis so that the attached dish can follow, approximately, the geostationary orbit, which lies in the plane of the Earth's equator.
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Niella Tanaro: Began manufacturing self-erecting cranes in 2000. In 2005, it began to manufacture top-slewing cranes. Niella also underwent an expansion in 2007.Manitowoc Cranes.
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Slewing bearings are often made with gear teeth integral with the inner or outer race (or both ion rare cases) used to drive the platform relative to the base (for example in winches. Slewing bearing designs range from single row ball or roller style, through double row ball or roller, triple row roller, combined (1 roller/ 1 ball) or wore guided raceways - each design having its own special characteristics and application. Old designs can have split rings to allow tight control on preload during assembly.. As for other bearings that reciprocate, rather than rotating continuously, lubrication can be difficult. The oil wedge built up in a continuously rotating bearing is disrupted by the stop start motion of slewing.
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The term slewing is also found in motion control applications. Often the slew axis is combined with another axis to form a motion profile. In crane terminology, slewing is the angular movement of a crane boom or crane jib in a horizontal plane. The term is also used in the computer game Microsoft Flight Simulator wherein the user presses a key and he or she can rotate and move the virtual aircraft along all three spatial planes.
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In 1932 the double jib system for slewing cranes was invented and patented.Ministerium für Wirtschaft Brandenburg: Kranbau Eberswalde macht die Häfen der Welt schneller The special feature of this jib system is that the hook remains at a constant height when the direction is changed. Until the present day, these cranes (also called gantry luffing and slewing cranes) are the key products in the company's product range. Between 1927 and 1934 Ardelt played a major role in constructing the Niederfinow Boat Lift.
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Plan of the crane The Beardmore Crane had two opposite cantilevered jibs, both equipped with moving winches, for a total length of . From the job to the ground extended a tapering lattice, which was enclosed by a lattice tower. The jib was slewed by a mechanism on the ground, and bearings at the top of the tower and where the extension met the ground allowed it to turn. The winch on each arm was powered by two electric motors for hoisting and two motors for slewing, and a motor for slewing.
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Thermal heating and cooling of a craft and its subsystems can also be controlled by the craft's orientation. Cameras or other sensing equipment that are fixed into position upon the craft need to be aimed by slewing the craft. A spacecraft can either be spin stabilized or 3-axis stabilized to maintain proper orientation. For spin-stabilized spacecraft, slewing is accomplished by applying a (significant) torque to the spacecraft, in general by operating a thruster in synchronous or asynchronous direction to its spin to adjust its spin rate.
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Roker Pier, Sunderland, 1895 A Hercules crane was a form of block-setting crane, developed in the 1870s. They were characterised by a wheeled, mobile gantry running on rails, surmounted by a slewing horizontal jib, held up by a kingpost.
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Potain is the Manitowoc brand of tower cranes. They produce both top-slewing and self-erecting models. Potain was a French-based company founded in La Clayette, France, in 1928 by Faustin Potain. The first crane was assembled in 1933.
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A slewing drive gearbox Counter rotating slewing drives sandwiching a fixed angle support can be applied to create a "multi-axis" tracking method which eliminates rotation relative to longitudinal alignment. This method if placed on a column or pillar will generate more electricity than fixed PV and its PV array will never rotate into a parking lot drive lane. It will also allow for maximum solar generation in virtually any parking lot lane/row orientation, including circular or curvilinear. Active two-axis trackers are also used to orient heliostats - movable mirrors that reflect sunlight toward the absorber of a central power station.
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The cutting boom can be tilted up and down (hoisting). The speeds of these operations are on the orders of 30 m/min and 5 m/min, respectively. Slewing is driven by large gears, while hoisting generally makes use of a cable system.
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In final state there were built up 67 antennas. All antennas were equipped with pivoting (or slewing) switches to tilt the main antenna-beam to +/- 5, 15 or 30 degrees. The antennas were furnished by German affiliate of Swiss BBC (today Ampegon) at Mannheim.
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The double-track section between the station and signal box - the only doubled section on the line - was severed at the station and a buffer stop installed on the down line. The up and down lines were then reconnected by slewing a section of track across.
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Slewing is associated with the large-signal performance of an op amp. Consider, for example, an op amp configured for a gain of 10. Let the input be a 1V, 100 kHz sawtooth wave. That is, the amplitude is 1V and the period is 10 microseconds.
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The Soderman has a centerline stern slewing ramp as well as port and starboard side port ramps systems which can be used with the new Mobile Landing Platform or (MLP ships) that have just been built.The US Navy’s Mobile Landing Platform Ships (MLP). (2015, February 1). Defense Industry Daily.
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Compared to a "normal" ball bearing the rings are quite wide and usually have holes drilled in them to provide fixation to a structure. Seals can be provided between the rings to protect the rolling elements. Compared to other rolling-element bearings, slewing bearings are relatively thin section and require that the structure to which they are bolted is stiff enough so that under load predefined limits of distortion are not exceeded. Slewing rings range in size from as little as 100mm diameter to well over 15 000mm (often segmented at this size for easy transport and handling); for example the bearings on the Falkirk Wheel are 4 metres diameter and fit over a 3.5 metre axle.
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Power for lifting and rotating was supplied by a coal-fired boiler supplying three steam generators (two 220 kilowatt generators and a 44 kilowatt auxiliary). The only connection between the crane arm and the lattice mast were drive shafts for the slewing (rotational) motors. Titan had a maximum displacement of .
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This function is performed by the attitude control computer (ACC) which is the platform for the ACMS. It is designed to fulfil the pointing and slewing requirements of the Herschel and Planck payload. The Herschel spacecraft is three-axis stabilized. The absolute pointing error needs to be less than 3.7 arc seconds.
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He was assigned B Flight. Libby was nearly killed by accident around this time. The DH-4 had controls accessible to the observer, and while engaged in a dogfight, a Lewis ammunition drum jammed the rudder, slewing it into a constant right hand turn. Once the problem was remedied, Libby returned to base.
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Drona cuts off his bow two times and slewing also his steeds and charioteer, trembles their army in their very sight. Duryodhana and his brothers faces Bhima. Bhima faces Duryodhana and made Kaurava brothers fled. Abhimanyu, accompanied by Bhimasena and Dhrishtadyumna pursue them and a dreadful conflict took place between those mighty combatants.
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Roll subsidence mode is simply the damping of rolling motion. There is no direct aerodynamic moment created tending to directly restore wings-level, i.e. there is no returning "spring force/moment" proportional to roll angle. However, there is a damping moment (proportional to roll rate) created by the slewing- about of long wings.
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71-415 is the first four-axle Uraltransmash tram on slewing trolleys with full low-level floor. A new chassis trolley with a two-stage spring suspension has been developed for this model. More than 70% of it consists of materials and components are from domestic production. That tram presented at the INNOPROM-2018 exhibition.
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The ship was of Ro-Ro configuration, fitted with a bow visor and bow ramp to aid loading and unloading of vehicles, and with two slewing cranes on the upper deck. The main cargo deck could accommodate up to six tanks, while 150 fully armed troops could be carried in addition to the ship's crew of 43.
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Initially the official toll was 51, but two names were added 22 and 40 years later respectively. In 2006, 14 metres waves resulted in the Interislander ferry DEV Aratere slewing violently and heeling to 50 degrees. Three passengers and a crew member were injured, five rail wagons were toppled and many trucks and cars were heavily damaged.
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The steel girders used for the balustrades are 1.5 m high and 24.6 m long. A special slewing crane was designed for the project to lift and mount a quarter of each floor level. Concrete was delivered by night to the construction site to minimize traffic obstruction. The office building stretches to 39 stories, of which five are underground.
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The whip hook has a capacity of 120 tonnes at 150 m. The 2nd Auxiliary hook can be deployed to a water depth of 450 m. The two cranes are capable of a tandem lift of 14,000 tonnes. Each crane was fitted with engines to power the boom and load hoists, 9 tugger lines and the crane slewing system.
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Coal Age, 84(10), 84-91. Beneath the superstructure lay the movement systems. On older models these would be rails for the machine to travel along, but newer BWEs are frequently equipped with crawlers, which grant them increased flexibility of motion. To allow it to complete its duties, the superstructure of a BWE is capable of rotating about a vertical axis (slewing).
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BWEs are used for continuous overburden removal in surface mining applications. They use their cutting wheels to strip away a section of earth (the working block) dictated by the size of the excavator. Through hoisting, the working block can include area both above and below the level of the machine (the bench level). By slewing, the excavator can reach through a horizontal range.
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Sulla stabilized the situation, at which point Archelaus flung in more troops from his right flank. This destabilized the Pontic army, slewing it towards its right flank. Sulla dashed back to his own right wing and ordered the general advance. The legions, supported by cavalry, dashed forward and Archelaus’ army folded in on itself, like closing a pack of cards.
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The crane weighs 120 tons. A vertical boiler inside the cab operates at 100 psi and supplies two twin-cylinder steam engines: one for slewing (turning) the crane, a larger one for winding the lifting chain. The winding drums can be driven by their gearing at four different speeds. The jib box girder extends below ground in a well for .
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In this way the boom moves in the same speed as the winch veers the topping end of the halyard and hauls the lowering end of the halyard, and vice versa. The slewing ends are also wound on to another half-barrel. For hoisting the cargo, there is a third winch to hoist to cargo on the yoke. Runners decrease swing and rotation of the cargo.
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Using a grapple avoids the need for people in the setting to attach chokers to the log. Choker setting as a profession is a very dangerous occupation. The main difference between a swing yarder and a tower yarder is that the upperworks is mounted on a large slewing bearing. This bearing permits the boom and cable system to be 'swung' across a setting without relocating the machine.
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The first was to unload coal at a power station in London. Another innovation was the kangaroo crane. Rather than slewing (rotating) the crane to reach the delivery hopper on-shore, a kangaroo crane has its own in-built hopper beneath the jib, that slews with it. Dumping the grab contents into the hopper now only requires the quicker luffing movement, without needing to slew.
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Traditional worm gear with a 4-start worm. Slewing drives function with standard worm technology, in which the worm on the horizontal shaft acts as the driver for the gear. The rotation of the horizontal screw turns a gear about an axis perpendicular to the screw axis. This combination reduces the speed of the driven member and also multiplies its torque; increasing it proportionally as the speed decreases.
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Kinematics MFG The speed ratio of shafts depends upon the relation of the number of threads on the worm to the number of teeth in the worm wheel or gear.Virginia Downward & William M. Clark, 1930 As technology has improved, more slewing drives are using hourglass worm technology, in which the worm is shaped to engage more teeth in the gear. This increased tooth engagement results in greater strength, efficiency and durability.
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When lifting, the rail carriage was wedged underneath to take the load. Slewing was possible all around the crane, which allowed a block to be picked up from a wagon behind the crane and moved to the front of the breakwater. The lift capacity was 15 tons, and there was enough wire rope to allow the hook to descend 26 feet below rail level. The crane was highly successful in use.
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Work on the slewing of the parallel standard gauge track commenced in December 2008, and was completed by January 2009, to allow construction of Platform 1. Work on the lift wells was underway by August, with the main span of the footbridge lifted into place in October 2009. The station was opened by the then Premier of Victoria, John Brumby, and Minister for Transport, Martin Pakula, on 6 June 2010.
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The privatisation of the company started after the GDR published its Directive on converting state- owned combines, companies and facilities to stock companies on 1 March 1990. The company was converted into a GmbH (limited liability company). Business continued to be conducted under the company’s Kranbau Eberswalde GmbH name. In 1991 the slewing crane product range was extended to include container loading equipment and hydraulically operated balance cranes in 1992.
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A power block, usually mounted on a boom or a slewing deck crane, hauls the seine net. Danish seining works best on demersal fish which are either scattered on or close to the bottom of the sea, or are aggregated (schooling). They are used when there are flat but rough seabeds which are not trawlable. It is especially useful in northern regions, but not much in tropical to sub-tropical areas.
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Enhancement of a section of the Birmingham–Peterborough line involving the reconstruction of 14 bridges, 11 tracking lowering/slewing schemes and one accommodation bridge. The cost is estimated at £40.5 million. The West Coast Main Line is already cleared to W10 and the route from Nuneaton to Birmingham is already cleared to W12. W10 gauge clearance was achieved on 4 April 2011 and GBRf trains requiring W10 gauge began using the route that day.
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In the 2011 Budget the Government announced that funding for the redoubling was to be provided, with works reported to be completed by Spring 2014 and then delayed until August 2014. Initial work involved slewing the single track, as it had been moved to the centre of the trackbed during the singling works. This was followed by excavation and clearance work, then finally installation of the new track. Level crossing works were also undertaken.
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Williams Landing railway station is located on the Werribee line in Victoria, Australia. It serves the western Melbourne suburb of Williams Landing opening on 28 April 2013.Williams Landing station opens with PSOs on patrol from tonight Premier of VictoriaWilliams Landing VicsigWilliams Landing Station Rail Geelong The Western standard gauge line passes to the north of Platform 1. Construction required the slewing of the existing southern track to make room for the new platform.
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The Zeiss telescope was purchased with money from a gift to the people of Auckland by the late Edith Winstone Blackwell MBE. It has been heavily used for both public viewing and research since being commissioned in 1967. In 2003 it underwent a complete renovation. A project begun in October 2018 to upgrade the telescope to full digital pointing and slewing is aimed to be completed for the spring 2020 observing season.
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Insurance paid $375,000 for repair work, but later, the mechanism again ground to a halt, due to further problems with the slewing ring.Ash, J.: "Memorial Repairs Delayed Indefinitely", Florida Today, January 23, 2001. Estimated cost of repairs was around $700,000, and the Astronauts Memorial Foundation unanimously decided the money would be better spent on educational programs instead. The floodlights were repositioned and are kept burning 24 hours a day to illuminate the memorial.
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It operates in the L-Band, S-Band and X-Band with dual polarization S and X-band feeds from COBHAM with room temperature receivers, the receiver systems cover 2.2 to 2.4 GHz at S-band and 8.1 to 9.1 GHz at X-band. It is mounted alt-azimuth and has slewing rates of 5 deg/s in azimuth and 1.25 deg/s in elevation and acceleration of 1.3 deg/s/s.
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Because of their multiple uses, slewing drives come in a variety of model sizes, performance ranges and mounting characteristics. The drives are well suited for applications that require both load holding and rotational torque from the same gear box. They can also be made with dual axes of rotation, (turning axes at the same time) or with dual drives on the same axis, (two worm threads driving the same ring gear in one axis).Machinery's Handbook Ortberg, Jones, Horton.
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A 50mm right-angle finderscope mounted on a 150mm telescope. Cassegrain Telescope at the Goldendale Observatory State Park. A finderscope is an aiming device used in astronomy, typically a small auxiliary telescope mounted on the main astronomical telescope along the same line of sight. The finderscope usually has a smaller magnification than the main telescope, providing a much larger field of view, useful for manually aiming (also called "slewing") a telescope and locating a desired astronomical object.
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To fulfill the necessity to connect any of the 16 transmitters to any of the 67 antennas, a cross-point switching matrix of height with more than 1.000 elements was built up. In addition to the curtain-antennas primarily existed five log-periodic antennas with horizontal polarization, consisting in two radiators with 26 dipoles each, built up side by side. The main beam could be tilt to +/- 20 degrees by pivoting (or slewing) switches. They were furnished by Telefunken.
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This may need to be repeated. A more sophisticated process involves a controlled process using slewing jacks in addition. Photographs of early locomotives often indicate one or more jacks carried on the frame of the locomotive for the purpose, presumed to be a frequent occurrence. When more complex rerailing work is needed, various combinations of cable and pulley systems may be used, or the use of one or more rail-borne cranes to lift a locomotive bodily.
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The second Ariel catalog (designated 2A) contains 105 X-ray sources observed before April 1, 1977. Prior to 2A some sources were observed that may not have been included. The 842 sources in the HEAO A-1 X-ray source catalog were detected with the NRL Large Area Sky Survey Experiment on the HEAO 1 satellite. When EXOSAT was slewing between different pointed observations from 1983 to 1986, it scanned a number of X-ray sources (1210).
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This could be accomplished with downwind rotors or with curved blades that twist naturally to reduce angle of attack at higher wind speeds. These systems will be nonlinear and will couple the structure to the flow field - thus, design tools must evolve to model these nonlinearities. Standard modern turbines all furl the blades in high winds. Since furling requires acting against the torque on the blade, it requires some form of pitch angle control, which is achieved with a slewing drive.
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Sleipnir outside Aibel in Haugesund, Norway The two large port and starboard tub-mounted cranes are provided by Huisman; overall boom length is . The slewing system, which allows the cranes to rotate in their tub, uses the world's largest bearings at in diameter. Conventional tub-mounted cranes ride on bogies or wheels, while the Huisman 10,000t cranes use the bearing directly. Prior to the cranes for Sleipnir, the largest bearings Huisman had used for tub-mounted cranes were only in diameter.
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A feature of the device is that the upper section is also a 2-axis motion controller with additional support for rotation. It allows motion in the X, Y & Z axis (corresponding to Forward, Backwards, Strafe left & right, Turn left & right). This made it an ideal companion for FPS and similar games, because you can aim weapons or look up and down with the right hand while simultaneously slewing position with the left hand, and change weapons etc. with the left finger buttons.
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The platform of the station was extended in 1883, with duplication of the line from Donnybrook and construction of the Melbourne bound platform carried out the same year. Duplication continued northwards in 1886. The station was closed on 2 April 1990 and the platforms were removed on 14 February 1991. Today the platform mounds can still be seen, as well as the slewing of the parallel standard gauge line away from the former up platform, and the widening of the railway reserve.
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A horizontal non-luffing jib was used, separate from the lower frame. This was supported on two carriages which could move sideways independently on curved tracks, thus allowing the jib to slew sideways over a small angle. For building linear breakwaters, this small slew angle was enough. With the load of these larger blocks, it was not yet possible to use a convenient central-pivot kingpost bearing, and full-circle slewing, as would be used for the much smaller Port Alfred crane.
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The Monash Freeway overpass, located at the down end of the station, was provided around 1987/1988. This required the slewing of the line through an artificial tunnel whilst the freeway was under construction, and the replacement of a wooden trestle bridge, which crossed over a local creek. East Malvern was upgraded to a Premium station on 21 August 1995. The footbridge, located at the down end of the station, was replaced in 2009, to accommodate the widening of the Monash Freeway.
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The Komatsu PC200-8 Hybrid uses the Komatsu Hybrid System. The system uses an ultracapacitor bank to store energy generated by the swing movement of the upper structure of the excavator.Construction Equipment Article An electric slewing motor/generator produces electrical power (as a generator) when braking the upper structure, and stores the current in the ultracapacitor bank. The excavator then utilizes electricity discharged from the ultracapacitor bank to power a motor to assist the engine and feed the motor/generator for swing acceleration.
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The original station opened on 1 July 1860 and closed on 31 July 1905. During 1905, the line between Leeds and was quadrupled, which involved slewing the line and building new bridges in several places. It was not considered worthwhile rebuilding it when the line was diverted onto a new bridge over the canal. A new station could provide opportunities for travel when space became available with the Kirkstall Forge Engineering closing in stages during the 1980s, 1990s and the early 2000s.
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This also restricted the angle of elevation to +25° and limited the range of the guns to . To load the gun the barrel lowered and a shell was brought forward by an elevated hoist within the cab. For large angles of traverse, the guns were pushed across a curved section of track for aiming. For small corrections, the guns had car traversing or "berceau" system which allowed 1° of left/right traverse by slewing the rear of the carriage on its bogies.
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The slewing drive is a modernized take on the worm drive mechanism that dates back many centuries and was widely used during the Renaissance Era. Pappus of Alexandria (3rd century AD), a Greek mathematician is credited for an early version of the endless screw, which would later evolve into the worm drive. This mechanism was also used by Leonardo da Vinci as a component in many of his designs for machines. It can also be found in the notebooks of Francesco di Giorgio of Siena.
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Jacana railway station is located on the Craigieburn line in Victoria, Australia. It opened on 15 February 1959, and serves the northern Melbourne suburbs of Jacana and Glenroy. The railway past the site of Jacana station opened in 1872 as part of the North East railway to Wodonga. Construction of the station required the slewing of both the up and down lines to make room for the island platform, as well as the flyover for the standard gauge line under construction at the same time.
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Converting broad gauge baulk road to standard was done by cutting the transoms and slewing the longitudinal and its rail to its new position. Between 1852 and 1892 an ever-increasing length of the Great Western Railway had been laid as mixed gauge that could be used by trains of either gauge. For baulk road this meant laying an additional longitudinal between the existing two (one rail was common to both gauges), but this significantly increased the cost and complexity of the track compared to cross-sleepers.
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This function is performed by the attitude control computer (ACC), which is the platform for the attitude control and measurement subsystem (ACMS). It was designed to fulfil the pointing and slewing requirements of the Herschel and Planck payloads. The Planck satellite rotates at one revolution per minute, with an aim of an absolute pointing error less than 37 arc-minutes. As Planck is also a survey platform, there is the additional requirement for pointing reproducibility error less than 2.5 arc-minutes over 20 days.
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Animation of Swift Observatory's orbit around Earth. Earth is not shown. Swift was launched on November 20, 2004, at 17:16 UTC aboard a Delta II 7320-10C from Cape Canaveral Air Force Station and reached a near-perfect orbit of altitude, with an inclination of 20.6°. On December 4, an anomaly occurred during instrument activation when the Thermo-Electric Cooler (TEC) Power Supply for the X-Ray Telescope did not turn on as expected. The XRT Team at Leicester and Penn State University were able to determine on December 8 that the XRT would be usable even without the TEC being operational. Additional testing on December 16 did not yield any further information as to the cause of the anomaly. On December 17 at 07:28:30 UTC, the Swift Burst Alert Telescope (BAT) triggered and located on board an apparent gamma-ray burst during launch and early operations. The spacecraft did not autonomously slew to the burst since normal operation had not yet begun, and autonomous slewing was not yet enabled. Swift had its first GRB trigger during a period when the autonomous slewing was enabled on January 17, 2005, at about 12:55 UTC.
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The SMT is a key component of the UFFO - a telescope designed for fast observation of prompt optical/UV emissions of GRB. SMT consist of the slewing mirror stage, the Ritchey–Chrétien telescope and image processing / motor controlling electronics. The SMT has 100 mm diameter aperture (although it is often mistakenly reported to have 20 cm aperture on various web pages), 17×17 arcmin field of view, 4 arcsec angular resolution and is able to register single photons in the 200 nm - 650 nm wavelength range due to using an ICCD as a detector.
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The curtain antenna array is suspended between the towers and rotates with them as the towers go around the circular railway. Another physical rotation technique is employed by the ALLISS system where the entire array is built around a central rotatable tower of great strength. Electrically slewed antenna arrays can usually be aimed in the range of ±30° from the antenna's physical direction while mechanically rotated arrays can accommodate a full 360°. Electrical slewing is typically done in the horizontal plane, with some adjustment being possible in the vertical plane.
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There are three fixed approach spans at the Norwich city end and the main swing bridge section. The swing bridge raises some on 4 main jacks, mounted on to substantial sub-frame in the turning pit. The swing bridge raises to clear the fixed span and land abutment's scarfed rail joints and to also clear the fixed overhead conductor rails, which are gantry mounted to the swing bridge and the approach spans. The bridge "slew" is provided by 2 hydraulic motors driving against the main slewing ring bearing, manufactured by Robello.
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A Manora-type crane, used for construction of the mouth of the North Sea Canal, circa 1865 In the late-1860s, a further development of the block-setting crane design took place, the Hercules crane. A crane was needed which could set larger and heavier blocks, up to 30 tons. The Hercules design combined aspects of both the earlier fixed-jib cranes built for works at Manora and that would later be used for a slewing jib crane at Port Alfred. A horizontal jib was added, with the ability to slew sideways.
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Douglas Harbour Breakwater, c. 1888 Alexander Shanks's 30 ton Hercules crane for Liepāja Further examples were built by Stothert & Pitt for the Breakwater Crane Railway, Douglas Harbour, Isle of Man, by Alexander Shanks & Son for Liepāja in Latvia, then part of Russia, and a 50 ton crane for Roker Pier, Sunderland. These introduced full-circle slewing, with the jib carriages running on a circular track. The jib could now be slewed to the side of the breakwater, which at Douglas was used to allow the unloading of ships tied up alongside.
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Another of Stothert & Pitt's innovations was the kangaroo crane. Rather than slewing (rotating) the crane to reach the delivery hopper on-shore, a kangaroo crane has its own in-built hopper beneath the jib, that slews with it as the crane rotates. Dumping the grab contents into the hopper now only requires the quicker luffing movement, without needing to slew for each load. The term "kangaroo crane" has also been applied more recently to jumping cranes, tower cranes used in the construction of skyscrapers that are capable of raising their towers as construction grows upwards.
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Slewing cranes which allowed a rotation of the load and were thus particularly suited for dockside work appeared as early as 1340. While ashlar blocks were directly lifted by sling, lewis or devil's clamp (German Teufelskralle), other objects were placed before in containers like pallets, baskets, wooden boxes or barrels. It is noteworthy that medieval cranes rarely featured ratchets or brakes to forestall the load from running backward. This curious absence is explained by the high friction force exercised by medieval treadwheels which normally prevented the wheel from accelerating beyond control.
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Depending on the sophistication of the printer, there might simply be two tractors at the top of the printer (pulling the paper) or tractors at the top and bottom (thereby maintaining paper tension within the printer). The horizontal position of the tractors was usually adjustable to accommodate different forms. The earliest printers by IBM used a hydraulic motor to move the forms. In later line printers, high-speed servomechanisms usually drove the tractors, allowing very rapid positioning of the paper, both for advancing line-by-line and slewing to the top of the next form.
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Three additional systems are currently undergoing development and testing and deployment will be staged over the next two years. All of the systems are mounted on custom manufactured, fast-slewing mounts capable of reaching any point in the sky in 3 seconds. The RAPTOR System is located on site at Los Alamos National Laboratory (USA) and has been supported through the Laboratory's Directed Research and Development funds. In 2004, some professional robotic telescopes were characterized by a lack of design creativity and a reliance on closed source and proprietary software.
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The greater part of these new classes of patients were elderly, being sent by workhouses as being ill and very close to death. Furthermore, before the introduction of antibiotics there were other incurables entering, such as those with tertiary syphilis and gonorrhea. Towards the end of the 19th century, greater numbers of people suffering from epilepsy were also admitted. All these additional patients had the effect of slewing some of the modern accounts critical of the effectiveness of these early establishments, even though there survives a mass of comprehensive and detailed records from the period.
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It included a new booking office, refreshment rooms, company offices and a board room, and shop spaces on the ground floor. A large abattoir development was begun in 1888 adjacent to the station site. During the summer months, the arrangement of the tracks at Saint Helier station was inadequate to cope with the frequency of trains and to speed up the turnaround of locomotives, a special "slewing table" was installed in 1902. This unusual mechanism was a moving track on wheels at the end of the line in front of the buffers.
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Competency training with evidence of learning and written assessment is legally required in Australia. A WorkSafe CN licence is a legally required licence for machines with a capacity of over three tonnes with standard attachments where the machine is operated from below. Telehandlers fitted with elevated work platform attachments and are operated from the basket are classified as elevated work platforms and require elevated work platform licences, such as the EWPA Yellow Card or Worksafe WP Licence. A WorkSafe C2 licence or higher may apply when using slewing-type telehandlers.
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Active trackers use motors and gear trains to perform solar tracking. They can use microprocessors and sensors, date and time-based algorithms, or a combination of both to detect the position of the sun. In order to control and manage the movement of these massive structures special slewing drives are designed and rigorously tested. The technologies used to direct the tracker are constantly evolving and recent developments at Google and Eternegy have included the use of wire-ropes and winches to replace some of the more costly and more fragile components.
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In late 1937, Fouga had not yet submitted a definite proposal. Its initial project, no drawings of which have survived, proposed a system in which the hull gun was traversed by slewing the entire vehicle, just as with the Char B1, but instead of the expensive Naeder transmission as used in the B1 a British Wilson gear box was planned. Another difference from competing designs was that the track return run was low. The commission rejected the use of a Carden-Loyd track, judging it to be too weak.
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Initially, this camera suffered from significant electronic noise, but this was traced to a sensor used to align the telescope after launch. Once this sensor was switched off, the camera performed as expected. The cameras were then adjusted for best performance, and the slewing and guiding performance of the telescope evaluated and optimised Finally, image quality and spectral resolution were studied and characterised, and the performance of the telescope, spectrographs and cameras were calibrated using observations of well-known stars. After these three phases were completed, the "routine phase" of operations began on 3 April 1978.
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The swing bridge section is approximately long, with an off-centre slewing bearing and an underslung counterweight box. The total slew bridge weight was , including the counterweight. The counterweight was made from almost of cut up railway track used to precisely balance the structure during the commissioning works. It was necessary for the swing bridge to be balanced about the centre of slew to give equal loading of the 4 main lifting jacks and the span was accurately weighed by 4 x electronic load cells (certified to ±0.5%) February 1987, during the bridge's final installation and commissioning trials.
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These crosshairs are generally illuminated by a small LED. Reflector sights are useful for locating bright objects visible to the naked eye such as stars and planets. Since the sight uses a beam splitter "window", instead of an optical telescope with the ability to gather light, objects dimmer than the naked eye limit can not be seen through it. Finding dim objects with a reflector sight is accomplished by using the object's known position relative to brighter objects as a reference and then slewing a known angular distance (or "star hopping") from the bright object to the desired object.
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Slew ring bearing To "slew" means to turn without change of place. A slewing bearing or slew[ing] ring (also called a turntable bearing) is a rotational rolling-element bearing that typically supports a heavy but slow-turning or slowly-oscillating loads in combination (axial, radial and moment loads), often a horizontal platform such as a conventional crane, a swing yarder, or the wind-facing platform of a horizontal-axis (yaw) windmill. In other orientations (e.g. a horizontal axis of rotation) they are used in materials handling grapples, forklift attachments, welding turnover jigs and so on.
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Slew and slewing are terms which can refer to a spacecraft's orientation or movement in reference to a plane or fixed position such as Earth, the Sun, another celestial body or other point in space. During space flight, a craft's attitude must be controlled for reasons dependent upon the craft's mission. Keeping a spacecraft slewed properly is vital toward ensuring that its high- gain antenna remains oriented toward Earth for sending and receiving data and commands. Additionally with many craft, keeping their solar arrays angled toward the Sun optimizes their power absorption and reduces the craft's reliance on internal power systems.
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UFFO Pathfinder (flight model) The Ultra-Fast Flash Observatory (UFFO) Pathfinder is a space observatory measuring prompt emission of gamma-ray bursts (GRB) both in optical/UV and in X-ray range down to sub-second timescales for the first time. Instead of turning the whole satellite towards GRB location like the Swift Gamma-Ray Burst Mission (that takes about 100 seconds), UFFO employs a slewing mirror telescope approach – the optical path of the telescope is changed by rotation of motorized mirror within ~1 second after burst was detected. UFFO was launched April 28, 2016 on board the Mikhailo Lomonosov satellite during the first launch from the new Russian Vostochny Cosmodrome.
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The radar operator, would, while IRACQ maintained angle track be slewing the range system from minimum range to maximum so as to regain track of the target at its true range of <500 nmi (900 km). As the target passed through point of closest approach (PCA) and increased in range the process was repeated at maximum range indication. The most difficult passes were those in which the orbit was such that the target came to PCA at a range of, say 470 nmi. That pass required the radar operator to work very hard as the radar closed, and then opened in range through the Big Bang in short order.
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Super-LOTIS is the second incarnation of the Livermore Optical Transient Imaging System, located at the Steward Observatory on Kitt Peak. It is an automated telescope designed to slew very rapidly to the location of gamma-ray bursts (GRBs), to enable the simultaneous measurement of optical counterparts. GRBs can occur anywhere in the sky, fade very quickly, and were initially poorly localized, so the original LOTIS needed very rapid slewing (less than 10 sec) and an extremely wide field of view (greater than 15 degrees). However, this wide field of view meant it could not see faint sources, and only the brightest GRB afterglows could be studied.
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There were two types: wooden gantry cranes pivoting on a central vertical axle and stone tower cranes which housed the windlass and treadwheels with only the jib arm and roof rotating. These cranes were placed on docksides for the loading and unloading of cargo where they replaced or complemented older lifting methods like see-saws, winches and yards. Slewing cranes which allowed a rotation of the load and were thus particularly suited for dockside work appeared as early as 1340. Floating crane Beside the stationary cranes, floating cranes which could be flexibly deployed in the whole port basin came into use by the 14th century.
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Trystin uses a concealed, modified laser to "miraculously" burn his target to death, then makes the Temple's hidden holo systems project an image of his own burning and disappearance as he makes his escape. He rushes out of Wystuh and off Orum itself, getting back to his ship in time to be chased down as a possible Coalition agent. In the hurried escape, he sends his ship slewing sideways just before initiating translation, having heard earlier from Major Freyer that to do so would increase the translation error sevenfold at least. Trystin arrives, his ship and himself nearly dead, 13 years later in a Farhkan system.
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"The main drive wheel contains 720 teeth and is operated by an electric motor, which is accurately timed by a seconds pendulum. A second wheel is used for fast slewing and also has a fine adjustment, while the third wheel is used for positioning the telescope in right ascension according to the setting circle. There is also a prominent declination circle and a declination fast slew motor".Orchiston, 1989 Another telescope, an incomplete Schmidt camera, is attached to the 24 inch telescope tube as is a large finder scope initially designed as a telescope in its own right and adapted as a guide scope.
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Several hours passed as engineers attempted to interpret the signal strength from the tumbling spacecraft in terms of its transmitting antenna pattern. Finally, an hour or two before the end, Thole decided to abandon caution and "start slewing", and by luck and skill, control was regained. SP-4012 NASA HISTORICAL DATA BOOK: VOLUME III Because the resulting orbital apogee was ~572 km instead of the planned ~350 km for the nominal circular orbit, several times each day OSO 7 passed fairly deeply into the Van Allen radiation belts, so that bombardment by high energy protons made it somewhat radioactive. The activity then decayed slowly during other times of the day.
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The 1845 bridge, during removal The 1905 bridge, newly installed The current single track rail bridge on the electrified railway line in to Norwich was designed by the British Rail' Eastern Region based in York. The main contractor was May Gurney of Norwich and they were also the civil works contractor. The Butterley Engineering Company were the fabricators, mechanical contractor and electrical contractor. The bridge was fabricated and fully trial erected, including a slewing motion trial, inside the Butterley Engineering Company's workshops known as "The Bridge Yard" at Butterley Hill, Ripley in Derbyshire during 1986 and was delivered to site and installed during the winter months of November 1986 to January 1987.
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In 1947, Grove Manufacturing Company was founded by brothers Dwight L. Grove and John L. Grove and friend Wayne A. Nicarry to produce rubber-tire farm wagons. The company began in a small, rented two-car garage in Shady Grove, Pennsylvania. Grove started out small by building yard-type cranes for its own use and later expanded to produce cranes commercially. As a manufacturer, it has achieved a number of "firsts" in the course of its history, including introducing the world's first slewing rough terrain crane in 1968 and the world's first trapezoidal boom in 1970; and by becoming the first international multi-facility crane manufacturer to receive the ISO 9001 quality assurance certification in 1994.
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The original ROTSE-I had 4 telephoto lenses of 11 cm aperture, covering a 16x16 degree field of view. This detected the first afterglow of a GRB while the burst was still ongoing, but this was the only burst detected by ROTSE or the very similar Livermore Optical Transient Imaging System. Therefore, ROTSE-II was designed, also featuring a large field of view, but it was never built, since new satellites such as HETE-2 and SWIFT could provide smaller error boxes, making a huge field of view unnecessary. This led to the design of ROTSE-III, a more or less conventional telescope designed for fast slewing and operation at multiple locations around the world.
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As it was not possible to adapt the kingpost bearing and full-circle slewing of the Port Alfred crane to this new load, the design reverted to the Manora type where the lower frame of the crane allowed blocks to pass beneath it on wagons. The jib was now separate from the lower frame though, supported on two carriages which could move sideways, thus allowing the jib to slew over a small angle. For building linear breakwaters, this small slew angle was enough. Although the mechanical design of the jib was as a kingpost truss, this kingpost was now part of the jib and rotated with it, rather than fixed to the frame beneath it.
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A shiploader mainly consists of a central column, an extendable arm or boom, a belt conveyor extending out of the boom structure, a slewing mechanism, and a loading chute to transfer product from a source conveyor or feeder. The boom can move front and back, up and down by separate drives so that it can fill the whole breadth of the ship hold and adapt to the ships increasing draught while it is loaded. The shiploader is essential to the global shipping industry. Globalization has promoted the need for international maritime ports to be equipped with efficient and durable shiploading machinery able to a handle the great variety of materials that enter into harbors within short time frames.
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The objective was for the Conwy Valley Line and the FR to open an interchange station inheriting the virtues and avoiding the vices of previous versions. The one-time Stesion Fain/LNWR site was considered, but the one-time F&BR;, later site was chosen as the best. This involved slewing the standard gauge line to the north side of the cross-Blaenau route to allow the FR to re-enter on the south side, thereby swapping traditional sides at the historic Blaenau Ffestiniog Central site. On 21 March 1982 British Railways closed the sole station in Blaenau and opened its part of the new station a quarter of a mile away on the ex-F&BR;/ex-GWR site in the middle of town.
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In many cases an encoder interface must filter the synchronized encoder signals before further processing them. This may be required in order to reject low-level noise and brief, large-amplitude noise spikes commonly found in motor applications and, in the case of mechanical-type encoders, to debounce A and B to avoid count errors due to mechanical contact bounce. Hardware-based interfaces often provide programmable filters for the encoder signals, which provide a wide range of filter settings and thus allow them to debounce contacts or suppress transients resulting from noise or slowly slewing signals, as needed. In bit-bang interfaces, A and B typically are connected to GPIOs that are sampled (via polling or edge interrupts) and debounced by software.
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Equatorial mount (Stützmontierung) devised by Alfred Jensch The equatorial mount has north-south "polar axis" tilted to be parallel to Earth's polar axis that allows the telescope to swing in an east-west arc, with a second axis perpendicular to that to allow the telescope to swing in a north-south arc. Slewing or mechanically driving the mount's polar axis in a counter direction to the Earth's rotation allows the telescope to accurately follow the motion of the night sky. Equatorial mounts come in different shapes, include German equatorial mounts (GEM in short), equatorial fork mounts, mixed variations on yoke or cross-axis mounts, and equatorial platforms such as the Poncet Platform. Tilting the polar axis adds a level of complexity to the mount.
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Voyager 1s Imaging Science Subsystem (ISS) consists of two cameras: a 200 mm focal length, low-resolution wide-angle camera (WA), used for spatially extended imaging, and a 1500 mm high-resolution narrow- angle camera (NA) – the one that took Pale Blue Dot – intended for detailed imaging of specific targets. Both cameras are of the slow-scan vidicon tube type and were fitted with eight colored filters, mounted on a filter wheel placed in front of the tube. The challenge was that, as the mission progressed, the objects to be photographed would increasingly be farther away and would appear fainter, requiring longer exposures and slewing (panning) of the cameras to achieve acceptable quality. The telecommunication capability also diminished with distance, limiting the number of data modes that could be used by the imaging system.
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The Livermore Optical Transient Imaging System, or LOTIS, is an automated telescope designed to slew very rapidly to the location of gamma-ray bursts (GRBs), to enable the simultaneous measurement of optical counterparts. Since GRBs can occur anywhere in the sky, are often poorly localized, and fade very quickly, this implies very rapid slewing (less than 10 sec) and a wide field of view (greater than 15 degrees). To achieve the needed response time, LOTIS was fully automated and connected via Internet socket to the Gamma-ray Burst Coordinates Network. This network analyzes telemetry from satellite such as HETE-2 and Swift Gamma-Ray Burst Mission and delivers GRB coordinate information in real-time.. The optics were built from 4 commercial tele-photo lenses of 11 cm aperture, with custom 2048 X 2048 CCD cameras, and could view a 17.6 X 17.6 degree field.
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