Within the Flexnode Plus project the long-term degradation characteristics of a proton exchange membrane (PEM) electrolyzer (5.5 kW, AC, 1 Nm3/h H2) and fuel cell (1.0 kW, DC, 0.9 Nm3/h) was experimentally tested. The electrolyzer unit was operated at various loads and pressures for approximately 750 …

This thesis project has been carried out at VHL (Van Hall Larenstein University of Applied Sciences) and consists of three different parts; the first part is an experiment in which during 20 days of cultivation the optimum nitrate concentration for protein production in Ulva lactuca is sought. U. lactuca …

The Exodus of rural settlers to urban centers with greater attractiveness of quality of life, has brought serious consequences to the rural environments all over the world. An example of this phenomenon is Spain, that has around 3,000 abandoned villages, half of them in Galicia. These settlements have …

Full text met HU account Although people all over the world learn sign languages as a second language (SL2), there is scant literature on sign language acquisition processes to guide professionals in the field. This study focuses on one of the modality-specific phenomena that SL2 learners with a spoken …

With the effects of climate change linked to the use of fossil fuels, as well as the prospect of their eventual depletion, becoming more noticeable, political establishment and society appear ready to switch towards using renewable energy. Solar power and wind power are considered to be the most significant …

Côte d’Ivoire produces about 42 percent of the world’s total Cocoa but processes only 30 percent of the total production. A large part of the country depends on the commercial benefits of the Cocoa production and supply chain of it. In this paper, we develop a simulation model that assess the performance …

Due to the exhaustion and increased pressure regarding the environmental and political aspects of fossil fuels, the industrial focus has switched towards renewable energy resources. Lignocellulosic biowaste can come from several sources, such as industrial waste, agricultural waste, forestry waste, and …

Germany has a known a growth of organic consumption within the recent years, however its consumption is growing faster than the German wine production which is still relatively low. Therefore, a large amount of wine is imported from other countries, making Germany the largest organic wine importer in …

Anthocyanins do not have a toxic effect, they are safe for humans, and they are of interest as natural dyes. They are used in the food industry, cosmetics, perfumery and medicine. Nowadays, the question of the use of anthocyanins in solar cells is being widely considered. Dye-sensitized solar cell (DSSC) …

Fungal contaminations cause problems in different industries worldwide. One of these is the production of entomopathogenic nematodes (EPNs) which are used as biological pesticides. How these contaminations occur is often unclear. Because the production and formulation process is done partly in the open …