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FRANCHI, Claiton Moro; CAMARGO, Valter Luís Arlindo de. Controladores lógicos programáveis: sistemas discretos. 2. ed. São Paulo: Érica, 2009. 352 p.
Bibliografia básica da disciplina "Controlador Lógico Programável" do 7º semestre do curso Engenharia de Controle e Automação
Bibliografia complementar da disciplina "Controle de Processos" do 7º semestre do curso Engenharia de Controle e Automação
Class.: 629.895
Cutter: F846c
Quantidade de exemplar: 10
1st print I made with my home darkroom setup.
Negative: Iflord 125 ISO B&W film, 28mm lens, shot on Canon AE-1 with a shutter speed of 1/500 from the car as we were leaving the Kaibab National Forest
Print: 30 sec exposure, CF 00, 8 sec dodge at bottom, f8.0
The coolest bike store in MadisonRevolution Cycles hosts Control who has a awesome new album Grabhorn C.
How the mighty have fallen, we once were in control of our lives but now our lives have somehow wrangled control from us. Look its just sitting there all smug, deceiving you with its sleek lines, its pretty little navi scroll button thingy.
But NO! its just playing possum, waiting for the most inopportune moment to exercise its high and mighty technology and wrest life out of your hands once again.
After a secretive agency in New York is invaded by an otherworldly threat, you become the new Director struggling to regain Control.
Colorado 2A State Wrestling Tournament at the Pepsi Center in Denver - February 19-21, 2009 (photos by Rhonda Uhland)
The control panel is composed of easy-to-use hard-keys. with audible feedback Panasonic is very good at providing products that are easy to use.
The controls fitted to the inside of the front panel. The other end of the wiring harness is plugged into the control PCB.
In the control cabin
From the Behind-the-Scenes Tour around Tower Bridge: Towers, high-level Walkways and Victorian Engine Rooms down to its hidden depths, normally out of bounds to the public...views from the Glass Floor and high-level Walkway, then the original steam engines, accumulators and boilers in the Victorian Engine Rooms...the Bridge’s operational areas including the Control Cabin, Machinery Room and the immense Bascule Chambers, which house the 422-ton counterweights.
Built between 1886 and 1894, the Bridge has spent more than a century as London's defining landmark, an icon of London and the United Kingdom.
A huge challenge faced the City of London Corporation - how to build a bridge downstream from London Bridge without disrupting river traffic activities. To generate ideas, the Special Bridge or Subway Committee was formed in 1876, and a public competition was launched to find a design for the new crossing.
Over 50 designs were submitted to the Committee for consideration, some of which are on display at Tower Bridge. It wasn't until October 1884 however, that Sir Horace Jones, the City Architect, in collaboration with John Wolfe Barry, offered the chosen design for Tower Bridge as a solution.
It took eight years, five major contractors and the relentless labour of 432 construction workers each day to build Tower Bridge under the watchful eye of Sir John Wolfe Barry.
Two massive piers were built on foundations sunk into the riverbed to support the construction, and over 11,000 tons of steel provided the framework for the Towers and Walkways. This framework was clad in Cornish Granite and Portland Stone to protect the underlying steelwork and to give the Bridge a more pleasing appearance.
When it was built, Tower Bridge was the largest and most sophisticated bascule bridge ever completed ('bascule' comes from the French word for 'seesaw'). These bascules were operated by hydraulics, using steam to power the enormous pumping engines. The energy created was stored in six massive accumulators, meaning that as soon as power was required to lift the Bridge, it was always readily available. The accumulators fed the driving engines, which drove the bascules up and down. Despite the complexity of the system, the bascules only took about a minute to raise to their maximum angle of 86 degrees. Find out more about this process.
Today, the bascules are still operated by hydraulic power, but since 1976 they have been driven by oil and electricity rather than steam. The original pumping engines, accumulators and boilers are now on display within Tower Bridge’s Engine Rooms.
[TowerBridge.org.uk]