Factor analysis was applied to two stages biogas production from banana stem waste allowing a screening of the experimental variables second stage temperature (T), organic loading rates (OLR) and hydraulic retention times (HRT). Biogas production was found to be strongly influenced by all the above experimental variables. Results from factorial analysis have shown that all variables which were ...

According to the manufacturer (Kodak pathe) of the LR-115 Type 2 films, which are widely used in environmental radioactivity studies, the exposed films should be etched in 10% solution of NaOH, while the temperature of the etching solution is to be kept at 60C. The optimum time of etching depends on different conditions; like geometry of the bath, temperature etc. To determine the optimal etchi...

Fe3O4 has long been regarded as a promising anode material for lithium ion battery due to its high theoretical capacity, earth abundance, low cost, and nontoxic properties. However, up to now no effective and scalable method has been realized to overcome the bottleneck of poor cyclability and low rate capability. In this article, we report a bottom-up strategy assisted by atomic layer depositio...

Full expansion and complete contraction are, then, the results of such stimuli as light, extremes of heat and cold, pituitrin, and adrenalin. Moderate contraction (B) might well be called a state of relaxation when the dermal melanophores are under no stimulation-room temperature and darkness being taken as the absence of all stimuli. My results on Necturus confirm those of Dawson in that the m...

Two phase flow in a horizontal tube has widespread applications, particularly in the condensers of refrigeration and air conditioning systems. Pressure drop prediction is especially important for condensers because the local condensing temperature is a function of local pressure, affecting the mean temperature difference in the heat exchanger. In the present analysis, two phase flow is treated ...

4 ABSTRACT: Anaerobic digestion (AD) of the organic fraction of municipal solid waste (OFMSW) 5 is promoted as an energy source and more recently as a GHG mitigation measure. In this context, AD 6 systems operating at thermophilic temperatures (55-60C) – compared to mesophilic temperatures 7 (35-40C) – have the unique feature of producing hygienic soil conditioners with greater process 8 effici...