There is mixed evidence regarding the relationship between the extractive intensity of economic activity and the level of human development. Some studies find that mineraland energy-intensive economies have higher levels of development than economies without a substantial extractive sector, whereas others find that they have lower development levels. Those that find the negative relationship co...

A data-driven approach for development of a virtual wind-speed sensor for wind turbines is presented. The virtual wind-speed sensor is built from historical wind-farm data by data-mining algorithms. Four different data-mining algorithms are used to develop models using wind-speed data collected by anemometers of various wind turbines on a wind farm. The computational results produced by differe...

Abstract. The generation, transport and characterization of supercooled droplets in multiphase wind tunnel test facilities is great importance for conducting icing experiments to better understand cloud microphysical processes such as coalescence, ice nucleation, accretion riming. To this end, a spray system has been developed, tested calibrated the Braunschweig Icing Wind Tunnel. Liquid size r...

to study the effects of nitrogen on tomato plant growth and the possibility of reducing nitrogen in drainage water, two nutrient solutions (complete nutrient solution (n+) and nutrient solution with a 30% decrease in n concentration (n-)) along with and three culture media (perlite, a mixture of perlite and nh4- enriched zeolite and finally a mixture of perlite and raw zeolite) were employed fo...

The SeaWinds series of scatterometer instruments were designed to measure vector winds over the ocean at a nominal resolution of 25 km. However, the radar backscatter measurements from which the wind is inferred are made at finer resolution than this. Further, the spatial sampling of the backscatter measurements can support reconstruction of finer scale backscatter values which can then be used...