Organic–inorganic metal halide perovskites (HaPs) are intensively studied for their light-harvesting properties. Owing to the interplay between strong electron–electron interaction and spin-orbit coupling (SOC), quantitative theoretical description is still a challenge as evidenced by wide variety of results available in literature. Here, various methodologies computing electronic structure eva...

Approximately 100 billion aluminum cans are produced annually, mainly for the beverage industry. Early technologies for decorating the cans often used solvent-based coatings containing solvents at concentrations of -70% to 75% by volume (Randall 1992). The solvent composition was typically a mixture of aliphatic hydrocarbons, aromatics, ethers, cellosolves, and acetates. Unfortunately, this met...

Applicable Pollutants: Particulate Matter (PM), including particulate matter less than or equal to 10 micrometers (:m) in aerodynamic diameter (PM10), particulate matter less than or equal to 2.5 :m in aerodynamic diameter (PM2.5), and hazardous air pollutants (HAPs) that are in particulate form, such as most metals (mercury is the notable exception, as a significant portion of emissions are in...

In this paper we address the potential gain of using compact MIMO antenna array configurations in conjunction with High Altitude Platforms (HAPs) diversity techniques in order to increase the capacity in HAP communication systems. For this purpose, we also propose a novel compact MIMO antenna which we denote as the “MIMOOctahedron” and compare its performance with the vector element antenna. Si...

High-altitude pseudo-satellites (HAPS) may be kept aloft indefinitely with station-keeping provided by plasma air thrusters (PAT) using wireless power transfer (WPT) from a terrestrial phased array antenna (PAA). One example is the patented “Sitallite” superpressure balloon rectifying (rectenna) covering its underside, around periphery. Such stationary platform can provide continuous observatio...

In this work, a mixed free-space optics (FSO)/radio-frequency (RF) based multiple serial high altitude platforms (HAPs) assisted multiuser multiantenna terrestrial communication system is considered. For the considered multi-hop system, earth station to HAP and links are assumed as FSO links, mobile users (MUs) link RF link. At detector both heterodyne detection intensity modulation direct tech...