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That these codes allow indeed for quantum computations of arbitrary length is the content of the quantum threshold theorem, found by Michael Ben-Or and Dorit Aharonov, which asserts that you can correct for all errors if you concatenate quantum codes such as the CSS codes—i.e. re-encode each logical qubit by the same code again, and so on, on ...
Today, manual wheelchairs, power wheelchairs, rehabilitation products for children and seat shell bases are produced at the former headquarters. After a five-year development period, the world's first microprocessor -controlled knee joint, the C-Leg, was presented at the World Prosthetics Congress in Nuremberg in 1997. [ 17 ]
A motorized wheelchair, powerchair, electric wheelchair, or electric-powered wheelchair (EPW) is a wheelchair that is propelled by means of an electric motor (usually using differential steering) rather than manual power. Motorized wheelchairs are useful for those unable to propel a manual wheelchair or who may need to use a wheelchair for ...
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While a mobility scooter eliminates much of the manual strength problems of an unpowered wheelchair, its tiller steering mechanism still requires upright posture, shoulder and hand strength, and some upper-body mobility and strength, although the delta tiller goes some way to alleviate these constraints. The arm-rest mounted controller typical ...
Using the Schrödinger equation leads to the selection rule for the vibrational quantum number in the system undergoing vibrational changes: = The compression and extension of a bond may be likened to the behaviour of a spring, but real molecules are hardly perfectly elastic in nature. If a bond between atoms is stretched, for instance, there ...
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Power Hockey also known as Powerchair Hockey is a competitive, fast-paced hockey game based on the use of a power wheelchair. [1] The foundation of the sport derives from ice hockey and floor hockey, but with adapted rules to enable people with disabilities, who use a power wheelchair, to play and be active in a competitive team setting.