Existing crowdsourced indoor positioning systems (CIPSs) usually require prior knowledge about the site and a tedious calibration process. Moreover, they may large number of landmarks while ignoring topology information that be contained in data. In this paper, we present Leto, system uses le arn...

Sulfuric acid ([3-(3-silicapropyl)sulfanyl]propyl]ester (SASPSPE) is employed as a recyclable catalyst for the silylation of hydroxyl groups. A good range of primary, secondary alcohols and phenolic hydroxyl groups were effectively converted into their corresponding trimethylsilyl ethers with hexamethyldisilazane in the presence of catalytic amounts of SASPSPE at room temperature with short rea...

Pure silicon-carbon films and the doped with manganese or nickel were deposited on a copper foil by electrochemical method from methanol / hexamethyldisilazane solution. Scanning electron microscopy studies of showed complex structure due to presence three-dimensional agglomerates “leafy” structures. Raman spectroscopy that highly defective. The porosity study revealed all samples mostly contai...

Contemporary Virtual Reality (VR) setups often include an external source delivering content to a Head-Mounted Display (HMD). “Cutting the wire” in such and going truly wireless will require network capable of enormous amounts video data at extremely low latency. The massive bandwidth higher frequencies, as millimeter-wave (mmWave) band, can meet these requirements. Due high attenuation path lo...

Abstract In recent years, Virtual Reality (VR) has become a valuable tool in rehabilitation and sports training applications. New technologies offer opportunities to combine various systems use them for sports-related scientific purposes. For instance, examining the visual perception of athletes within standardized environment could be helpful understand differences between novices experts thei...

Purpose: Three-dimensional (3D) video games played using virtual reality head-mounted displays (VR-HMDs) are becoming increasingly popular. However, the use of this technology may lead to visual symptoms and discomfort by disrupting normal linkage between accommodation vergence systems. This study aimed investigate effect playing 3D VR-HMDs on different oculomotor functions (i.e., and/or...