Unidade Técnico Funcional – Prestação de serviços : Formação Profissional de 2011 a junho de 2015.

Unidade Técnico Funcional – Prestação de serviços : Formação Profissional de 2011 a junho de 2015.info:eu-repo/semantics/publishedVersio

A fileira das plantas aromáticas e medicinais em Portugal : transformação e distribuição

Esta comunicação insere-se no âmbito do projecto Agro nº 800 “ Rede Nacional para a Conservação e Utilização de Plantas Aromáticas e Medicinais” e pretende analisar a fileira PAM em Portugal, com o objectivo de conhecer os agentes intervenientes, as operações técnicas realizadas, o grau de integração entre agentes, a organização interna da fileira e suas articulações com o exterior. Neste sentido foram efectuados inquéritos a produtores, transformadores e distribuidores de PAM e seus derivados. Aqui serão abordados, exclusivamente, os dados referentes à distribuição e comercialização. Os dados recolhidos mostram uma desarticulação quase total da fileira. Apesar de se verificarem alguns casos de integração vertical, de modo geral, o grau de integração entre a produção e os sectores de transformação e distribuição é muito ténue e as relações comerciais caracterizam-se por uma ausência de vínculo contratual. A produção nacional sofre uma forte concorrência externa, patente na disparidade de preços das matérias-primas de origem nacional e estrangeira. Assim sendo, verifica-se que a indústria transformadora praticamente não utiliza matéria-prima de origem nacional o que constitui um estrangulamento à produção de PAM. O sector da distribuição é o elemento mais dinâmico da fileira e o que mais contribui para a geração de valor

Electron impact ionization of 1-propanol

Experimental measurements of the cations created in electron impact ionization have been undertaken for the primary isomer of propanol using a Hidden Quadrupole Mass Spectrometer (EPIC 300), with a mass resolution of 1 amu. The mass spectra recorded at an incident electron energy of 70 eV reveals the relative probability of forming 50 different cations, by either direct ionization or dissociative ionization. Individual partial ionization cross sections (PICS) for 31 different cations were measured for the first time in this work, for the incident electron energy range from 10 to 100eV. Also, appearance energies (AEs) and Wannier exponents for the 16 most intense cations formed in electron collisions with 1-propanol are reported. Where possible, those results are compared to those from an earlier investigation. Total Ionization Cross Sections (TICS) were also obtained from the sum of the measured PICS, for nearly all cations measured, and are compared to relevant data reported in the literature. In addition, as a part of this study, theoretical TICS were calculated using the Binary-encounter Bethe (BEB) and independent atom model with screening corrected additivity rule (IAM - SCAR) methods. Good agreement between current measured and calculated TICSs and corresponding earlier results was typically found

Integral cross sections for electron impact excitation of vibrational and electronic states in phenol

6 págs.; 4 figs.; 1 tab.© 2015 AIP Publishing LLC. We report on measurements of integral cross sections (ICSs) for electron impact excitation of a series of composite vibrational modes and electronic-states in phenol, where the energy range of those experiments was 15-250 eV. There are currently no other results against which we can directly compare those measured data. We also report results from our independent atom model with screened additivity rule correction computations, namely, for the inelastic ICS (all discrete electronic states and neutral dissociation) and the total ionisation ICS. In addition, for the relevant dipole-allowed excited electronic states, we also report f-scaled Born-level and energy-corrected and f-scaled Born-level (BEf-scaled) ICS. Where possible, our measured and calculated ICSs are compared against one another with the general level of accord between them being satisfactory to within the measurement uncertainties.This work was supported by the Australian, Brazilian, and Spanish governmental funding agencies (ARC, CNPq, CAPES, and MINECO). D.B.J. thanks the ARC for a Discovery Early Career Researcher Award. R.F.C.N. acknowledges CNPq and Flinders University for financial assistance, while M.J.B. thanks CNPq for his “Special Visiting Professor” award and the University of Malaya for his “Distinguished Visiting Professor” award. M.C.A.L. acknowledges financial support from CNPq and FAPEMIG, while G.G. acknowledges financial support from MINECO (No. FIS2012-31230) and COST (Nos. MP1002 and CM1301).Peer Reviewe

Development of a threshold positron spectrometer

We introduce a new positron spectroscopy experimental technique that we call threshold positron spectroscopy, by analogy with its similar threshold photoelectron spectroscopy. An apparatus that is being developed to explore this technique is described in this work.http://www.sciencedirect.com/science/article/B6TVT-4JW7WPW-3/1/a800a67732e0d75f39e5bc6014315e0

Intermediate-energy differential and integral cross sections for vibrational excitation in α-tetrahydrofurfuryl alcohol

9 pags.; 5 figs.; 6 tabs.Differential and integral cross section measurements, for incident electron energies in the 20-50 eV range, are reported for excitation of several composite vibrational modes in α-tetrahydrofurfuryl alcohol (THFA). Optimisation and frequency calculations, using GAUSSIAN 09 at the B3LYP/aug-cc-pVDZ level, were also undertaken for the two most abundant conformers of THFA, with results being reported for their respective mode classifications and excitation energies. Those calculations assisted us in the experimental assignments of the composite features observed in our measured energy loss spectra. There are, to the best of our knowledge, no other experimental or theoretical data currently available in the literature against which we can compare the present results. © 2014 AIP Publishing LLC.Spanish (Ministerio de Economia y Competitividad under Project FIS2012-31230) funding agencies who financially supported various aspects of this work.Peer Reviewe