Abstract: AC chopper power circuit driven by asymmetrical Pulse Width Modulation (PWM) is a method which used for improving input power factor. The PWM is created by two signals: a saw-tooth signal ...

The beauty guru took to Instagram on Sunday to share a hack that converted a €20 Penneys night dress into a lookalike for a ...

Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610064, P. R.

During his first term, U.S. President Donald Trump made a classic tweet: “Trade wars are good, and easy to win.” That tweet ...

We report the first simulations of nonsolvent-induced phase separation (NIPS) that predict membrane microstructures with graded asymmetric pore size distribution. In NIPS, a polymer solution film is ...

In a world increasingly driven by high-speed communication and low-power electronics, a team of researchers from the National ...

Between the firefighting and fireworks, South Africa’s delegation did just enough to meet its strategic objectives.