239 research outputs found
Eliciting, antimicrobial and film-forming properties of chitosan applied on fresh fruit and vegetables.
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. Uso di oli essenziali per il controllo dei marciumi di ortofrutticoli in postraccolta: attività, meccanismi d’azione e strategie di applicazione.
No full textImpact of UHF RFID IC impedance on the RFID system performances in presence of dielectric materials
No full textUHF Radio Frequency Identification (RFID) systems are considered in the Near Field/Short Range and Far Field applications. The effect due to the presence of dielectric materials in close contact with the tag antenna is investigated. The efficiency of the UHF RFID antenna is parametrically analyzed by varying the impedance of the integrated circuit (IC) connected to the tag antenna. An investigation on the variation of the IC quality factor is carried out with the purpose to define the best performing configuration of the UHF RFID antenna
Field analysis of penetrable conductive shields by the finite-difference time-domain method with impedance network boundary conditions (INBCs)
No full textImpedance network boundary conditions (INBCs) are implemented in the finite-difference time-domain (FDTD) method to analyze the electromagnetic field around penetrable shield structures. The shield region is eliminated from the computational domain and the INBCs are applied on the new boundary surfaces, i.e., shield surfaces, to take into account the field discontinuity produced by the shield. The INBCs represent an important extension of the well-known surface impedance boundary conditions (SIBCs) since the INBCs model accurately the coupling of the electromagnetic fields through penetrable shields and lead to a significant reduction of the number of the FDTD unknowns. The INBC expressions are given analytically in both frequency and time domains, and the INBC implementation in a FDTD code is discussed. The proposed INBC-FDTD method is numerically efficient because the resulting convolution integrals are recursively solved. Furthermore, approximate time-constant INBCs are proposed which are valid for many practical applications. The analysis of transient electromagnetic fields around penetrable conductive shields in simple test configurations are presented and compared with the analytical solution
Evaluation of alternatives to fungicide to control postharvest gray mold alone or with ozone storage in grapes, 2011.
No full textFil: Feliziani, E.. Marche Polytechnic University; ItaliaFil: Romanazzi, G.. Marche Polytechnic University; ItaliaFil: Cerioni, Luciana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Smilanick, Joseph L.. United States Department of Agriculture. Agricultural Research Service; Argentin
Proroga ex lege delle concessioni balneari e giurisprudenza amministrativa: in attesa della pronuncia dell'Adunanza Plenaria
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