In the genus Hypericum, cryoconservation offers a strategy for maintenance of remarkable biodiversity, emerging from large inter- and intra-specific variability in morphological and phytochemical characteristics. Long-term cryostorage thus represents a proper tool for preservation of genetic resources of endangered and threatened Hypericum species or new somaclonal variants with unique properti...

This paper describes ,the cryogenic operation of partially depleted Silicon-On-Insulator inverters. As is shown, the floating operation yields a degradation of the transfer characteristics, which increases upon cooling. Additionally, at cryogenic temperatures, hysteresis effects further deteriorate the performance. These observations will be discussed in view of the cryogenic SO1 MOSFET charact...

Abstract This work focuses on developing the mathematical model of surface roughness (Ra) in turning Inconel 625 superalloy with cryogenically treated tungsten carbide inserts. The influence cryogenic microstructure and hardness tools was also investigated for as-received inserts deep treatment at − 196 °C 12, 24, 36 h conditions. Turning experiments have been performed according to an orthogon...

A comprehensive Kubo-Greenwood modelling of FDSOI MOS devices is performed down to deep cryogenic temperatures. It found that a single set mobility parameters only necessary fit the capacitance and drain current transfer characteristics versus temperature for long channel devices. In contrast, in short transistors, neutral scattering component µN decrease at small gate length due increased impa...

A detailed and didactic analysis of the diffusivity in a 2D inversion layer is carried out, providing its dependence on carrier density temperature. Then, comprehensive study diffusion drift current components MOSFET proposed. Their with gate drain voltages investigated down to deep cryogenic temperature, revealing that at T = 4 K nearly constant strong whatever mobility law. Finally, based our...

We study the large-scale anisotropy of Universe by measuring dipole in angular distribution a flux-limited, all-sky sample 1.36 million quasars observed Wide-field Infrared Survey Explorer (WISE). This is derived from new CatWISE2020 catalog, which contains deep photometric measurements at 3.4 and 4.6 $\mu$m cryogenic, post-cryogenic, reactivation phases WISE mission. While direction quasar sky...

The Spitzer Space Telescope Infrared Array (IRAC) offers a rare opportunity to measure distances and determine physical properties of the faintest and coldest brown dwarfs. The current distortion correction is a 3 order polynomial represented by TAN-SIP parameters within the headers. The current correction, good to 100 mas, was derived from deep imaging, using marginally resolved galaxies in so...

Martensitic stainless steel powder exhibits a high nitrogen uptake when densified by supersolidus liquid-phase sintering in atmosphere, but the optimum uptake, which is beneficial to its resistance corrosion, unknown. In this study, of high-carbon martensitic X190CrVMo20-4-1 atmosphere against pitting corrosion was explored. This clarify impact matrix quenched and tempered condition on an aqueo...