This prototype uses water cooling, PTFE rings, and 3D‑printed mounts to turn 200‑year‑old heat‑engine tech into a ...

An evaporating colloidal particle–laden droplet leaves behind a ring-like residue after drying. We routinely observe this ubiquitous phenomenon for dried coffee drops; thus, it is known as the "coffee ...

The air conditioning (A/C) system is the largest auxiliary load in electric urban buses that operate in tropical climates. Reducing the energy consumption of the A/C system is therefore vital in ...

Gas-steam combined cycle can greatly improve energy efficiency when it is used in cogeneration, and its combustion products are pollution-free. Therefore gas-steam combined cycle has been widely used ...