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Selenium was originally developed by Jason Huggins in 2004 as an internal tool at ThoughtWorks. [5] Huggins was later joined by other programmers and testers at ThoughtWorks, before Paul Hammant joined the team and steered the development of the second mode of operation that would later become "Selenium Remote Control" (RC).
In 2005, Microsoft released UIA as a successor to MSAA framework.. Managed UI Automation API was released as a part of .NET Framework 3.0.The native UI Automation API (provider) is included as part of the Windows Vista and Windows Server 2008 SDK and is also distributed with the .NET Framework.
Screenshot of a sample Bash session in GNOME Terminal 3, Fedora 15 Screenshot of Windows PowerShell 1.0, running on Windows Vista. A command-line interface (CLI) is a means of interacting with a computer program by inputting lines of text called command lines.
The installation of conductors, fixtures and protection devices for a structure or vehicle. electricity meter An instrument to measure the electrical energy used by a customer for revenue purposes. electricity pylon A structure, generally of wood or metal, to support wires. electricity The set of physical phenomena associated with electric charges.
Rotary actuators can have up to a rotation of 360 degrees. This allows it to differ from a linear motor as the linear is bound to a set distance compared to the rotary motor. Rotary motors have the ability to be set at any given degree in a field making the device easier to set up still with durability and a set torque.
Vibration (from Latin vibrāre 'to shake') is a mechanical phenomenon whereby oscillations occur about an equilibrium point.Vibration may be deterministic if the oscillations can be characterised precisely (e.g. the periodic motion of a pendulum), or random if the oscillations can only be analysed statistically (e.g. the movement of a tire on a gravel road).
An expansion joint is designed to allow deflection in the axial (compressive), lateral (shear), or angular (bending) deflections. Expansion joints can be non-metallic or metallic (often called bellows type). Non-metallic can be a single ply of rubberized material or a composite made of multiple layers of heat and erosion resistant flexible ...
Exploded view of a Michell type thrust bearing. Note, each sector shaped pad can pivot on the ridges on the lower plate. Fluid-film thrust bearings were invented by Albert Kingsbury, who discovered the principle in the course of bearing and lubrication investigations commencing in 1888 while a student.