52 research outputs found
Does Pollination Induce Corolla Abscission of Cyclamen Flowers by Promoting Ethylene Production?
Full text linkTowards an effective potential for the monomer, dimer, hexamer, solid and liquid forms of hydrogen fluoride
Full text linkWe present an attempt to build up a new two-body effective potential for
hydrogen fluoride, fitted to theoretical and experimental data relevant not
only to the gas and liquid phases, but also to the crystal. The model is simple
enough to be used in Molecular Dynamics and Monte Carlo simulations. The
potential consists of: a) an intra-molecular contribution, allowing for
variations of the molecular length, plus b) an inter-molecular part, with three
charged sites on each monomer and a Buckingham "exp-6" interaction between
fluorines. The model is able to reproduce a significant number of observables
on the monomer, dimer, hexamer, solid and liquid forms of HF. The shortcomings
of the model are pointed out and possible improvements are finally discussed.Comment: LaTeX, 24 pages, 2 figures. For related papers see also
http://www.chim.unifi.it:8080/~valle
Crescimento, duração do ciclo e produção de inflorescências de crisântemo multiflora sob diferentes números de despontes e tamanhos de vasos
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Plant Science Growth Development And Utilization Of Cultivated Plants
No full textxii.676 hal.;ill.;26 c
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