Based on four years of spatially synchronous topographic data the Oujiang Estuary from 2002 to 2019, variations and physical mechanisms estuarine evolution driven by natural conditions human activities since beginning this century were analyzed. The results show that has changed dramatically in past 20 years. From net sediment erosion estuary was 163.44 million m3, average bed elevation river-d...

The main advantage of tetramethyl ammnium hydroxide (TMAH)-based solutions is their full compatibility with IC technologies. In this work a new etching system of TMAH/IPA (isopropyl alcohol) is suggested. The influence of the addition of IPA to TMAH solutions on their etching characteristics is presented. The etch rates of (100) oriented silicon crystal planes decreases linearly with decreasing...

What explains change? Edward Feser argues in his ‘Aristotelian proof’ that the only adequate answer to these questions is ultimately terms of an unchangeable, purely actual being. In this paper, I target cogency Feser’s reasoning such answer. particular, present novel paths criticism—both undercutting and rebutting—against one central premises. then argue inference unactualized actualizer lacks...

Plasma etching to As2S3 thin films for optical waveguide fabrication has been studied using a helicon plasma etcher. The etching effects using the processing gases or gas mixtures of O2, Ar, and CF4 were compared. It was found that the O2 plasma had no chemical etching effect to the As2S3, but it could oxidize the surface of the As2S3. The Ar plasma provided a strong ion sputtering effect to th...