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Статті в журналах з теми "Sistemi di generazione"
Gibelli, Gioia, and Riccardo Santolini. "Reti ecologiche e governo del territorio." TERRITORIO, no. 58 (September 2011): 61–74. http://dx.doi.org/10.3280/tr2011-058009.
Повний текст джерелаCaianiello, Michele. "Processo penale e prescrizione nel quadro della giurisprudenza europea. Dialogo tra sistemi o conflitto identitario?" Revista Brasileira de Direito Processual Penal 3, no. 3 (October 14, 2017): 967. http://dx.doi.org/10.22197/rbdpp.v3i3.99.
Повний текст джерелаCapitello, Roberta, Diego Begalli, and Lara Agnoli. "New consumption patterns for alcoholic beverages: value system, product attributes and preferences." RIVISTA DI STUDI SULLA SOSTENIBILITA', no. 2 (January 2013): 15–45. http://dx.doi.org/10.3280/riss2012-002003.
Повний текст джерелаLombardi, Duccio. "Decellularizzazione d'organo: matrici fisiologiche per la generazione di organi in vitro." Giornale di Clinica Nefrologica e Dialisi 25, no. 3 (August 26, 2013): 244–47. http://dx.doi.org/10.33393/gcnd.2013.1046.
Повний текст джерелаGianecchini, Martina. "Apprendistato: formare al futuro artigiano." QUADERNI DI ECONOMIA DEL LAVORO, no. 99 (May 2013): 103–17. http://dx.doi.org/10.3280/qua2013-099006.
Повний текст джерелаNocenzi, Mariella. "Sostenibilitŕ e dimensione generazionale." RIVISTA DI STUDI SULLA SOSTENIBILITA', no. 1 (April 2011): 75–91. http://dx.doi.org/10.3280/riss2011-001010.
Повний текст джерелаBruni, Francesco, and Alfredo Canevaro. "Affetti e affari in famiglia. Il contributo dello psicoterapeuta sistemico-relazionale." TERAPIA FAMILIARE, no. 92 (April 2010): 9–30. http://dx.doi.org/10.3280/tf2010-092001.
Повний текст джерелаZampieri, Sandra, Luca Botturi, and Spartaco Calvo. "Giovani e tecnologie: tra nativi digitali e competenze effettive." Swiss Journal of Educational Research 40, no. 2 (October 24, 2018): 307–34. http://dx.doi.org/10.24452/sjer.40.2.5063.
Повний текст джерелаMilani, Paola. "Il sistema di welfare dell'infanzia e le famiglie prima e dopo la pandemia: appunti per un Children Act." MINORIGIUSTIZIA, no. 1 (September 2020): 56–66. http://dx.doi.org/10.3280/mg2020-001006.
Повний текст джерелаBenazzi, Adriano, and Pier Luigi Marchini. "Profili critici di tassazione dei redditi di capitale e dei fondi di investimento." ECONOMIA E DIRITTO DEL TERZIARIO, no. 3 (September 2011): 445–90. http://dx.doi.org/10.3280/ed2010-003004.
Повний текст джерелаДисертації з теми "Sistemi di generazione"
Di, Iorio Domenico. "Sistemi radiomobili di quinta generazione." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/9752/.
Повний текст джерелаDe, Bortoli Manuel. "MODELLIZZAZIONE DI SISTEMI DI GENERAZIONE DI ENERGIA ELETTRICA PER VIA EOLICA." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3422237.
Повний текст джерелаGli argomenti trattati in questa Tesi di Dottorato sono articolati in due parti. Una prima è rivolta allo sviluppo di algoritmi di controllo aventi lo scopo di ottimizzare la resa energetica di sistemi eolici consentendo allo stesso tempo una semplificazione del sistema stesso grazie all'assenza di sensori per la rilevazione di grandezze meccaniche. La seconda parte riguarda l'analisi ed il progetto di generatori sincroni a flusso assiale a magneti permanenti da utilizzare in applicazioni eoliche. Sono stati inoltre analizzati particolari aspetti elettromagnetici quali gli sforzi assiali gravanti sulle parti statoriche e rotoriche ed il calcolo delle perdite per correnti indotte nei magneti permanenti.
Guglielmelli, Antonio <1975>. "Calcoli di sezioni d'urto efficaci di riflettore in sistemi PWR di terza generazione." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7081/1/guglielmelli_antonio_tesi.pdf.
Повний текст джерелаIn GEN III+ systems the correct modelization of the reflector zone is a key step for an exact prediction of the cell parameters whose values directly affect the radial power distribution of the core system. This need has become even more necessary after the discovery of the amplification of the “tilt power” phenomenon in the GEN III+ nuclear core. For this reason, special care is taken in the modelization methodology and in the generation of reflector homogenized cross-section and discontinuity factor (DFs) on the reflector zone. The deterministic package code used for the cell data calculation is SCALE 6.1.3 suite. The strong difference in the neutronic properties at core/reflector interface combined with a high geometric heterogeneity between a core and a reflector system have suggested to perform a preliminary analysis on the GEN II reflector system as presented by NEA-NSC-DOC (2013) benchmark with the aim of testing the capability of the deterministic code to perform a correct calculation on a 1-D assembly/reflector modelization. The results, which are in good agreement with those evaluated with SERPENT 2.0 Monte Carlo code, confirmed the capability of SCALE code to perform cell data reflector calculations. The modelization analysis on the GEN III+ reflector system has been performed for two homogeneous configurations and for a series of exact heterogeneous zones along the angular direction of the reflector. It has been also realized a sensitivity analysis on operational and code parameters. Finally, it was performed a 2x2 color-set calculation to investigate the 2-D geometry effects on the numerical values of cell reflector parameters. The final results are an improvement in the scientific knowledge of the reflector cell data values. These values can be used in a EPR nodal code calculation for a more accurate assessment of the core power distribution and of the “power tilt” values.
Guglielmelli, Antonio <1975>. "Calcoli di sezioni d'urto efficaci di riflettore in sistemi PWR di terza generazione." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amsdottorato.unibo.it/7081/.
Повний текст джерелаIn GEN III+ systems the correct modelization of the reflector zone is a key step for an exact prediction of the cell parameters whose values directly affect the radial power distribution of the core system. This need has become even more necessary after the discovery of the amplification of the “tilt power” phenomenon in the GEN III+ nuclear core. For this reason, special care is taken in the modelization methodology and in the generation of reflector homogenized cross-section and discontinuity factor (DFs) on the reflector zone. The deterministic package code used for the cell data calculation is SCALE 6.1.3 suite. The strong difference in the neutronic properties at core/reflector interface combined with a high geometric heterogeneity between a core and a reflector system have suggested to perform a preliminary analysis on the GEN II reflector system as presented by NEA-NSC-DOC (2013) benchmark with the aim of testing the capability of the deterministic code to perform a correct calculation on a 1-D assembly/reflector modelization. The results, which are in good agreement with those evaluated with SERPENT 2.0 Monte Carlo code, confirmed the capability of SCALE code to perform cell data reflector calculations. The modelization analysis on the GEN III+ reflector system has been performed for two homogeneous configurations and for a series of exact heterogeneous zones along the angular direction of the reflector. It has been also realized a sensitivity analysis on operational and code parameters. Finally, it was performed a 2x2 color-set calculation to investigate the 2-D geometry effects on the numerical values of cell reflector parameters. The final results are an improvement in the scientific knowledge of the reflector cell data values. These values can be used in a EPR nodal code calculation for a more accurate assessment of the core power distribution and of the “power tilt” values.
Traversi, Serena. "Generazione intelligente di un orario delle lezioni." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6740/.
Повний текст джерелаAizza, Marco. "Modelli per la simulazione di azionamenti elettrici di propulsione e sistemi di generazione navali." Doctoral thesis, Università degli studi di Trieste, 2013. http://hdl.handle.net/10077/8532.
Повний текст джерелаLa propulsione elettrica navale è una soluzione che riscuote notevole interesse per le navi di nuova generazione. La sua versatilità permette di ottimizzare gli spazi ed i pesi del sistema elettrico di propulsione. Questo sistema garantisce una riduzione dei consumi specifici del motore primo che, al variare della velocità di rotazione dell’elica connessa alla macchina elettrica, lavora costantemente alla velocità nominale, dove i consumi sono ottimizzati. Il presente elaborato si pone come obiettivo lo studio di un sistema di propulsione ibrida, composto da una turbina a gas e due azionamenti elettrici, installato su navi militari di nuova concezione. Il sistema è in grado di funzionare anche come generatore asse. Lo studio si focalizzerà principalmente sugli azionamenti elettrici del sistema di propulsione e sulla loro interazione con il sistema elettrico integrato di bordo. L’obiettivo principale è quello di realizzare un simulatore dettagliato dell’azionamento elettrico di propulsione, permettendo di studiare il funzionamento dello stesso in regime stazionario e in regime dinamico. Viene quindi eseguita una modellizzazione matematica dettagliata dell’azionamento di propulsione oggetto di studio, dalla macchina elettrica ai convertitori di propulsione. Lo studio è condotto allo scopo di ottenere informazioni riguardanti il comportamento dell’azionamento, in determinate condizioni di funzionamento, e gli effetti da esso causati sulla rete elettrica di bordo. Viene poi descritto il modello del sistema funzionante in modalità di “generatore asse”, dalla trattazione fatta sul sistema di propulsione, effettuando una validazione del relativo simulatore implementato, attraverso la comparazione tra i risultati ottenuti e le prove di collaudo fornite dai produttori del sistema oggetto di studio. Viene infine trattato uno degli argomenti più promettenti nell’ambito della propulsione elettrica navale, il sistema di distribuzione in media tensione continua (MVDC). Il sistema MVDC è una soluzione che riscuote notevole interesse nell’ambito delle “all-electric ship” di nuova generazione, grazie ai vantaggi offerti in termini di riduzione di pesi e dimensioni del sistema di generazione e di consumo di energia.
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LEGROTTAGLIE, FRANCESCO. "SISTEMI DI PROPULSIONE E DI GENERAZIONE DELL'ENERGIA AD ELEVATA EFFICIENZA E RISPETTOSI DELL'AMBIENTE." Doctoral thesis, Università degli studi di Modena e Reggio Emilia, 2022. http://hdl.handle.net/11380/1277159.
Повний текст джерелаClimate and environment are undergoing significant changes to extreme conditions due to the heat not reflected beyond the Earth’s atmosphere, with environmental consequences now obvious to everyone. European Union policies include energy and environmental plans to contain these anomalies as soon as possible. Diesel internal combustion engines have excellent general efficiency and reliability, but if they are powered in a traditional way with diesel oil they emit pollutants and greenhouse gases. It’s possible to replace this fossil fuel with biodiesel, or partially by burning it in dual-fuel mode with gaseous mixtures to significantly reduce pollutant emissions. The aim is to continue to exploit the robustness and flexibility achieved with compression ignition engines in various sectors of heavy transport or maritime sector, rather than for combined energy generation. In this thesis combustion DF (dual fuel) and RCCI (Reactivity Controlled Compression Ignition) have been investigated in which a part of diesel oil, fuel of fossil origin and high reactivity, is replaced by a fuel with low reactivity from origin not necessarily fossil (for example: biogas, hydrogen ), indirectly injected into the intake manifold and forming a homogeneous and lean premixed charge; a small amount of high reactivity fuel is injected directly into cylinder ignite the charge. The analyses were carried out using 3D CFD simulations of the combustion process which were validated preliminarily on the basis of experimental data obtained from a modified Diesel engine operating In dual fuel mode. The experimental campaign has been carried out at the test bed of Unimore Departement. Various low reactivity fuels including gasoline, natural gas, biogas and mixtures of natural gas and hydrogen have been investigated. Natural gas and biogas ensure lower operating costs and can leads to reduce exhaust emissions. Furthermore, biogas is a renewable source of energy and can be produced locally, aspects that are of fundamental importance in this historical moment. Both experimental tests and simulations have shown the possibility of replacing high quantities of diesel oil (over 80%) with natural gas or biogas, maintaining or increasing the engine efficiency. Only at low load conditions, the high fuel air ratio of the premixed charge makes dual fuel combustion critical. The possibility of mixing hydrogen with natural gas (up to 50% by volume) was then investigated in order to improve the quality of combustion. This has allowed to improve combustion at low loads, extending the operating zone in dual fuel mode and reducing emissions at medium/high loads. On biogas, moreover, a specific deepening has been done for a cogenerative application. The biogas of plant origin, and self-produced on site by anaerobic fermentation, has been simulated in dual fuel combustion in different parts of carbon dioxide, up to a 50%, fractions corresponding to real compositions of this gas. For this variability, the same performances are not always guaranteed and appropriate injection timing tunings are required. The real case of meeting the energy needs of an agricultural holding has been studied, by means of self-handling of combined electric and thermal energy from diesel cycle endothermic engine in dual fuel mode. For this application were considered performance aspects, exhaust emissions, as well as economic aspects of feasibility and return of the investment.
Guerrini, Giacomo <1987>. "Modellazione del processo di rettifica a secco per generazione di ingranaggi di impiego automobilistico." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amsdottorato.unibo.it/8335/1/Tesi%20Dottorato_Giacomo%20Guerrini.pdf.
Повний текст джерелаThe following thesis presents work done during the Ph.D., focused on definition of a model for simulation and optimization of a new dry grinding process for automotive gears. The objective of the study is to develop a model that allows a virtual simulation of gear grinding. The simulation must be applied to an industrial scenario to optimize process parameters and high quality parts, free from geometric and metallurgical defects. The high accuracy requirements typical of gears for automotive applications must be obtained by ensuring competitive production volumes compared to those typical of lubricated processes. In order to address the unique challenges of grinding, further complicated by the specific characteristics of gear grinding, the problem has been divided into two hierarchical levels. A first level involved the study and modeling of interactions between a single abrasive grain and the material being processed to calculate the characteristic cutting forces and predict the amount of thermal energy developed during material removal. In a second level the results obtained in the first phase were applied to the complex geometry of a gear tooth and kinematics of the generation process. In this phase, temperatures attained on the ground component and the thermal gradient generated during grinding were calculated to determine the occurrence of thermal damage to the material. The two models, working in synergy, allow prediction of the thermal stress to which the gear is subject during dry grinding, allowing optimization of the cutting parameters to obtain maximum productivity. The entire doctorate was conducted in collaboration with Samputensili Machinetools and saw the direct industrial application of the issues addressed. Experimental tests were carried out in the laboratories of Georgia Tech in Atlanta, USA and RWTH Aachen, Germany, for validation of the cutting model. Production tests and validation of the thermal model were performed at Samputensili.
ISOPI, Giovanni Maria. "Sistemi di produzione di nuova generazione per la formatura e la tempra di lastre di vetro." Doctoral thesis, La Sapienza, 2005. http://hdl.handle.net/11573/916975.
Повний текст джерелаFRANCUCCI, MASSIMO. "Sistemi per la generazione di raggi X da plasma indotto da laser e possibili applicazioni." Doctoral thesis, Università degli Studi di Roma "Tor Vergata", 2005. http://hdl.handle.net/2108/171.
Повний текст джерелаDuring the three years of doctorate, the plasma X soft radiation generation system, developed by the Engineering Faculty, Enterprise Engineering Department of the University of Rome "Tor Vergata", has been studied and used from me for numerous applications. Generally a plasma comes created sending focused laser radiation with opportune wavelength λ and intensity I (I ≥ 107W/cm2, where 107W/cm2 it represents the threshold intensity for the plasma generation) on a solid or liquid or gaseous target placed to the inside of a chamber (commonly called X–rays chamber and that works in vacuum) and that has a distance from the focalization lens approximately equal to the focal distance f of the same lens. In the case of the system that we use for the generation of X soft radiation from plasma, the laser source used for the plasma creation is constituted from a solid state Nd:Yag/Glass laser that can emit infrared impulses with wavelength λ = 1064nm, with duration τ = 15ns and with maximum theoretical energy Emax=20J (the maximum effective energy is, instead, equal exactly to the half). The target that we used and on which the laser beam comes focused is a solid target usually constituted from metallic tapes that can rotate on an appropriate mechanical support. With our plasma X soft radiation generation system, it is possible to obtain laser beam intensities on the focal plane of the focalization lens comprised between 1011W/cm2 and 8,49 × 1012W/cm2, with the laser spot dimensions on the target approximately equal to 100µm. This system has been developed for: 1) the survey, the study and the analysis of the X emission spectra from laser induced plasma (X spectroscopy); 2) the microlithography applications in that the X soft radiation is used; 3) X microscopy; 4) the radiographs of biological samples; 5) the use of crystals or of LiF (lithium fluorine) films like X–rays detectors, in order to produce images of samples (as for example test reticulums or biological systems) with elevated spatial resolution that is inferior to the micron (exactly is of the order of 400nm); 6) calibrated measures of energy for the X radiation emitted from a laser induced plasma in the near of a specific wavelength. Moreover, because the laser source plays a fundamental role in the plasma X radiation generation process, we have tried to optimize its performances to the aim to maximize the efficiency of X–rays generation. Finally, always in our laboratories, we are putting to point a laser system for UV ultrashort pulses with wavelength λ = 248nm, with duration τ = 100fs, with energy equal to E = 100mJ and with a repetition frequency of 100Hz, based on a Titanium:Sapphire oscillator in mode locked regime, with which we hope to reach a laser beam intensity on the focal plane at least 1016W/cm2 (in truth, we hope to reach a intensity value of 1018W/cm2 for being able to generate relativistic plasmas) and to obtain a UV – X generation efficiency equal to 10% at least, advanced to that obtainable currently with our Nd:Yag/Glass laser source (inferior to 1%).
Книги з теми "Sistemi di generazione"
Frey, Luigi, and Emanuela Ghignoni. Trasformazioni del sistema formativo e qualificazione dell'offerta di lavoro per generazioni. Milano: FrancoAngeli, 2000.
Знайти повний текст джерелаMonti, Maria Teresa. Congettura ed esperienza nella fisiologia di Haller: La riforma dell'anatomia animata e il sistema della generazione. Firenze: L.S. Olschki, 1990.
Знайти повний текст джерелаPištan, Čarna. Tra democrazia e autoritarismo. Bononia University Press, 2021. http://dx.doi.org/10.30682/sg278.
Повний текст джерелаЧастини книг з теми "Sistemi di generazione"
Peppoloni, Diana. "Pratiche di mediazione non professionale degli studenti stranieri immigrati di prima o seconda generazione nel sistema scolastico italiano." In SAIL. Venice: Fondazione Università Ca’ Foscari, 2021. http://dx.doi.org/10.30687/978-88-6969-477-6/017.
Повний текст джерелаТези доповідей конференцій з теми "Sistemi di generazione"
Albissini, Piero, Antonio Catizzone, Laura De Carlo, Laura Carlevaris, Vittorio Di Stefano, and Alessandro Micucci. "Le trasformazioni dello spazio urbano: la quarta dimensione nella georeferenziazione dell’iconografia storica di Rome." In International Conference Virtual City and Territory. Barcelona: Centre de Política de Sòl i Valoracions, 2009. http://dx.doi.org/10.5821/ctv.7549.
Повний текст джерела