You don't chew nicotine gum the way you chew normal gum. If you did, all the nicotine would be released directly into your saliva. If you swallowed the nicotine-soaked saliva, it would provoke a terrible stomachache and a nasty and overwhelming craving for a cigarette.
Meaning; SCRI: Salford Centre for Research and Innovation: SCRI: Sarah Cannon Research Institute: SCRI: Scottish Crops Research Institute
An SCR is a short form for Silicon Controlled Rectifier, Which is a three terminal semiconductor device. This device is used for rectification, regulation and inversion etc. It is also used as a controlled switch in high rating instruments. That is why this device has such importance.