Abstract: Systems and methods for detecting, capturing and/or disinfecting viruses. A water trap system includes a water-filled container through which air is introduced into a water-filled container. Charged viruses, bacteria and other contaminants become trapped in the water-filled container as they are entrapped by oppositely charged atoms (e.g., oxygen). Another device incorporates an electric field created by a pair of electrodes with an outer surface heated to a threshold temperature significant enough to disinfect viruses that come into contact therewith. Another device is a portable inhaler for detecting the polarity of airborne viruses and counting the positive and negative electrical charges of airborne viruses with tolerances of a few charged particles per cubic centimeter by sampling several hundred cubic centimeters of air per second. Consequently, the portable inhaler is capable of quickly and efficiently detecting whether a person has contracted a virus (e.g., COVID-19 virus).

Abstract: A new type of cutting insert is disclosed here which has sandwich structure often with honeycombs in the mid-section of the insert, to allow fluid and/or gas coolant flow through the insert from inside and reduce cutting tool temperature during work-piece cutting operation. The cutting insert includes an insert body, which includes cutting edge, nose, rake face, and flank face. The cutting insert body further contains interior coolant passageways formed by specially manufactured honeycomb structure in the insert body. The number, shape, and size of honeycomb interior passageways are carefully developed and distributed inside the insert body. Therefore, the insert provides adequate strength to withstand force and impact from cutting work-piece and also in the meantime provides effective cooling to the cutting tool.