A quasi-static technique is discussed for obtaining the ‘low frequency’ thermal equilibrium MOS capacitance-voltage characteristics. The method is based on a measurement of the MOS charging current in response to a linear voltage ramp, so that the charging current is directly proportional to the incremental MOS capacitance. With this technique, surface potential and the surface state density ca...

An underwater volcanic eruption off the Vava’u island group in Tonga on 7 August 2019 resulted creation of floating pumice ocean’s surface extending over an area 150 km2. The pumice’s far-reaching effects from its origin region to Fiji and methods automatic detection using satellite imagery are described, making it possible track westward drift raft 43 days. Level 2 Moderate Resolution Imaging ...

Pt/Zr(x)-HMS/HZSM-5 catalysts with different ratios of Silicium/Zirconium (denoted as x) were studied for normal heptane reforming at 350-450 °C temperature range. For this purpose, the properties of the catalysts such as X-ray diffraction, X-ray fluorescence, Fourier-transform infrared spectroscopy, Ultraviolet–visible diffuse reflectance spectroscopy, NH3-temperature pro...

Abstract Burckhardt Compression Holding AG, based in Winterthur, is an internationally active manufacturer of reciprocating compressors who uses three-piece pistons its Laby® compressors. Due to their design for casting, the have a high weight, which limits size piston, particularly large diameters. For this reason, solutions are being looked produce lightweight using metal additive manufacturi...