Based on the mechanism of heat generation at the welding interface, welding methods for thermoplastics can be classified as external and internal heating methods, as shown in Fig 1. Fig. 1. Classification of welding methods for semi-finished polymeric materials.
ritalin is the brand name of the drug methylphenidate hydrochloride doctors prescribe ritalin to treat attention deficit hyperactivity disorder adhd and a sleep disorder known as narcolepsy
RITALIN is a central nervous system stimulant prescription medicine. It is used for the treatment of Attention-Deficit Hyperactivity Disorder (ADHD). RITALIN may help increase attention and decrease impulsiveness and hyperactivity in patients with ADHD.o not use RITALIN-SR for a condition for which it was not prescribed. Do not give RITALIN-SR to other people, even if they have the same condition. It may harm them and it is against the law. This Medication Guide summarizes the most important information about RITALIN-SR.