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The Nuss procedure is a minimally invasive procedure, invented in 1987 by Dr. Donald Nuss and his colleagues, Dr. Daniel Croitoru and Dr. Robert Kelly, for treating pectus excavatum. [1] [2] [3] He developed it at Children's Hospital of The King's Daughters, in Norfolk, Virginia. The operation typically takes approximately two hours. [4]: 1277
Hindered amine light stabilizers (HALS) are chemical compounds containing an amine functional group that are used as stabilizers in plastics and polymers. [1] These compounds are typically derivatives of tetramethylpiperidine and are primarily used to protect the polymers from the effects of photo-oxidation; as opposed to other forms of polymer degradation such as ozonolysis.
Light stabilizer are used to inhibit polymer photo-oxidation, which is the combined result of the action of light and oxygen. Like autoxidation this is a free radical process, hence the antioxidants described above are effective inhibiting agents, however additional classes of additives are also beneficial, such as UV absorbers, quenchers of ...
The World War I transport USS Henderson, completed in 1917, was the first large ship with gyro stabilizers. It had two 25-ton, 9-foot (2.7 m) diameter flywheels mounted near the center of the ship, spun at 1100 rpm by 75 hp (56 kW) AC motors.
Rollerons on the trailing edge of the fins of the AIM-9 Sidewinder missile Detail of a rolleron on a Sidewinder Rollerons on the fins of the K-13 missile. A rolleron is a type of aileron used for rockets and used to provide passive stabilization against rotation.
In industrial chemistry, a stabilizer or stabiliser is a chemical that is used to prevent degradation. [1] Above all, heat and light stabilizers are added to plastic and rubber materials because they ensure safe processing and protect products against aging and weathering.
The electric powered active stabilizer suspension was first used on the 2007 Lexus GS. The 2008 Lexus LS 600h was the second vehicle to feature the active stabilizer system. Active Power Stabilizer Suspension System (APSSS) , is an electric active suspension system with active anti-roll bars developed by Toyota Motor Corporation for its high ...
An anti-roll bar (roll bar, anti-sway bar, sway bar, stabilizer bar) is an automobile suspension part that helps reduce the body roll of a vehicle during fast cornering or over road irregularities. It links opposite front or rear wheels to a torsion spring using short lever arms for anchors.