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We combine ab initio density functional theory calculations with the equivalent cores approximation to determine core-level binding-energy shifts at phosphorus sites caused by oxidation of phosphorene. We find that presence of oxygen increases the core-level binding energies of P atoms and expect binding-energy shifts of up to 6 eV in highly defective(More)
An expert system for management of plug seedling was developed, the system have the function for the diagnosis of pests, diseases and the consulting of plug seedling cultivation. According to the symptoms characteristic features described for diseases and pests, the rule base was established based on relational databases. And the rules were expressed based(More)
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