1 Conversion disorder: A somatic symptom disorder involving the actual loss of bodily function such as blindness, paralysis, and numbness due to excessive anxiety. 2  Illness anxiety disorder: A somatic symptom disorder involving persistent and excessive worry about developing a serious illness. diagnosis of somatic symptom disorder requires that the subject have recurring somatic complaints for at least six months. Symptoms are sometimes similar to those of other illnesses and may last for years. Usually, the symptoms begin appearing during adolescence, and patients are diagnosed before the age of 30 years.
Ship owners prefer single engine/single propeller designs and the new generation of larger container ships (or post-Panamax) called for a bigger engine to propel them. The RTA96C-14 turbocharged two-stroke diesel engine is produced by Swiss company Wartsila-Sulzer and is the largest and most powerful diesel engine in the world today.
The engine is named after Dr.Rudolf Diesel, of Germany, who produced his first engine in 1893. In fact it is a compression-ignition engine. The mixture of air and oil inside a cylinder is compressed by a piston. This is increases the temperature to the point where the oil ignites, the explosion blows the piston back, then the process begins all over again.