Flow chemistry is the development and study of chemical reactions whereby reactants are combined by pumping fluids, including solutions of reagents, through tubes at known rates. The relative ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

No callers are identified. No conversations are recorded. No phone records are kept. Now speak clearly and when you are finished say: 'Go ahead'.