43,640 research outputs found

    Evaluation of biodegradation kinetic constants for aromatic compounds by means of aerobic batch experiments

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    Kinetics of aerobic biodegradation have been investigated for twenty aromatic species using sludges collected from the aeration basin of municipal sewage treatment plants. The reproducibility of the results is tested with respect to the sludges period of collection and the wastewater treatment plant where they are taken. The comparison of kinetic constants, estimated for the investigated chemicals, allows to evaluate the reactivity effect of single groups (i.e., -OH, -CH3, -Cl, -NO2) into the aromatic structures. The search for easy structure-reactivity relationships is also attempted by means of contributing group methods

    Improving European Organic Market Information - The OrganicDataNetwork Project

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    The United Nations Food and Agriculture Organisation (FAO) has observed an increased need for the provision of market information and Market Information Services (MIS) in recent years

    Entanglement magnification induced by local manipulations

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    We study the entanglement capability of the evolution of a pair of qubits evolving under unitary dynamics, when the local dynamical parameters cannot be modified during the time-evolution. Unlike the fast local control regime, we find that local and non-local contributions to the dynamics are strictly interconnected. Moreover, it is possible to strongly increase the entanglement capability by suitably initializing the characteristic energies of the two parties.Comment: 4 page
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