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Short-term wave prediction is a key enabling technology for advanced control of wave energy converters (WECs), where accurate knowledge of the incident wave field over one to a few wave periods can improve power capture, reduce structural loads, and support operational decision-making. Many existing prediction methods rely on measurements at the prediction point or dedicated up-wave sensors, which
In the context of growing concerns over climate change and peak oil, biofuels for transport are attracting considerable support from the European Union (EU). However, the sustainability of biofuels is under increasing debate. Furthermore, the complexity of the biofuels industry (involving different resources and feedstock suppliers, different logistics providers and options, a range of technologie
In this paper we have used primary and secondary sources to make, to our knowledge, the first attempt ever to quantify the role non-wage labour on settler farms in colonial Africa. We have used Southern Rhodesia as a case in point and focused primarily on the role of tenant labour. Our findings show that the rise of wage labour did not mark the end of the latter. On the contrary, the two forms of
The uprisings in the Middle East in 2011 had repercussions in Morocco too, where demonstrators demanded a reform of the political system. The king managed to diffuse the protests by presenting a new constitution which was accepted by 98,5 percent of the voters in a referendum in July 2011. While the new constitution introduces some limited restrictions on the king’s power, the bulk of executive po
This paper presents a comparison of the image rejection between Gilbert mixer and the passive mixer. A simple model for mixers is set up, and the image rejection performance of passive and Gilbert mixer is analyzed based on it. Simulations and calculations were done to compare the image rejection of the two mixers. The results show that the Gilbert mixer, comparing with the passive one, shows a st
This work has been made as a thesis for a BSc degree in Fire Protection Engineering at Lund University. The work has been supported and funded by ESS AB, European Spallation Source, in Lund. ESS AB is a publicly held company, owned by Sweden and Denmark as host countries. These host countries, together with at least 17 other European countries, will build and establish a multidisciplinary research
Larvae and pupae of two Neotropical choreutids, Rhobonda gaurisana Walker and Zodia scintillana (walker) (Lepidoptera: Choreutidae), are described. Photographs, drawings, and scanning electron micrographs are provided for both species, and observations on larval behavior and biology are reported. The larval head in both genera is reinterpreted as being semiprognathous. The D2 setae on A9 arise fro
