Optimisation of solar photovoltaic (PV) parameters using meta-heuristics

Microsystem Technologies - This paper presents a critical analysis of the meta-heuristic techniques used in various researches on the optimisation of photovoltaic (PV) parameters, which involves...     

Aspects of melon seed protein characteristics

Protein from Nigerian melon seed types Colocynthis citrullus Linn) was studied by means of electrophoresis, chromatography on Sephadex, sedimentation and amino acid analysis. The major protein, a globulin, was separated into three fractions by gel filtration and ultracentrifugation. The major fraction had a molecular weight of about 300 000 by gel filtration. SDS-PAGE fractionated the globulin into six subunits. The major subunits have molecular weights of 33 700, 29 600 and 21 600. The water-soluble protein contained only one main band of molecular weight 12 000. The total salt-extractable protein was characterised by a low level of lysine and relatively large amounts of glutamic acid, aspartic acid and arginine. The last three amino acids accounted for over a third of the total amino acid content. No marked differences were observed in the amino acid profile, electrophoretic or gel chromatographic properties of protein from different seed types.     

Contamination of the Potable Water Supply in the Lead–Zinc Mining Communities of Enyigba,Southeastern Nigeria

Mine Water and the Environment - Lead, zinc, and associated minerals have been mined in the Enyigba, Nigeria area for over 92 years, leaving accumulated sulphide dumps and contaminated mine water....