Search results for " Principi"
showing 10 items of 398 documents
Photocatalytic oxidation of trans-ferulic acid to vanillin on TiO2 and WO3-loaded TiO2 catalysts
2015
Abstract The photocatalytic oxidation of trans-ferulic acid to vanillin in water has been studied by using various TiO2 and WO3-loaded TiO2 samples as catalysts. Different values of selectivity were obtained depending on the physico-chemical properties of the single samples and a vanillin selectivity of 10% was reached in the presence of the commercial TiO2 Merck. Higher selectivity values were obtained by impregnation of TiO2 with H2WO4 followed by calcination. The increased production of vanillin exhibited by the obtained WO3-loaded TiO2 powders was attributed to a reduced further oxidation of the aldehyde caused by the presence of the practically inactive tungsten trioxide hydrate on the…
No-Flow Temperature in Injection Molding Simulation
2010
Most injection molding simulation packages use the no-flow temperature (NFT) as a means of determining whether the polymer flows or is solid. The NFT is not well defined, and a standard method for measuring it does not exist. A sensitivity analysis of the filling stage has been carried out with two different packages [VISI Flow (Vero Software Limited, Gloucestershire, UK) and Moldflow (Autodesk, Inc., San Rafael, CA)] to estimate the influence of the NFT on the main processing parameters. The NFT has a large influence on the thickness of the frozen layer, but it does not appreciably affect the filling pressure. Because the NFT affects the frozen layer, an effect on the estimation of shrinka…
The use of master curves to describe the simultaneous effect of cooling rate and pressure on polymer crystallization
2003
In a previous work a master-curve approach was applied to experimental density data to explain isotactic polypropylene (iPP) behaviour under pressure and high cooling rates. Suitable samples were prepared by solidification from the melt under various cooling rate and pressure conditions with the help of a special apparatus based on a modified injection moulding machine. The approach here reported is more general than the case study previously shown, and is suitable to be applied to several materials and for different measures related to crystalline content. The proposed simple model is able to predict successfully the final polymer properties (density, micro-hardness, crystallinity) by supe…
Cilvēka cieņas kā vispārējā tiesību principa piemērošanas metodoloģija Satversmes tiesas procesā
2022
Bakalaura darba nosaukums: “Cilvēka cieņa kā vispārējā tiesību principa piemērošanas metodoloģija Satversmes tiesas procesā”. Bakalaura mērķis ir: aplūkot cilvēka cieņu kā vispārējo tiesību principu un kā tā tiek piemērota Satversmes tiesā. Galvenais secinājums, kas izdarīts darba ietvaros, ka clvēka cieņa, balstoties uz tās saistību ar pamatnormu, proti, to, ka tā izreit no pamatnormas, kā arī to, ka pēc sava satura tā izteic Latvijas tiesiskās sistēmas augstāko vērtību - cilvēku - tā ir uzskatāma par vispārējo tiesību principu, kā arī Cilvēka cieņa kā vispārējs tiesību princips kalpo tikai par ārējā normatīvā tiesību akta materiālās satversmības pārbaudes mērauklu, jo cilvēka cieņa nenosa…
La sorte dei contratti dei calciatori professionisti nell’emergenza Covid-19
2020
The essay focuses on the impact generated by the spread of the Coronavirus (COVID-19) and by the subsequent numerous regulatory actions. It takles the world of sports and the football players’ contracts in relation to the global pandemic. It analyses all the different Italian Governament decrees enacted in order to regulate sports matters, stressing their effects. The author exam- ines the civil aspects concerning the modi cation or the interruption of ser- vices due under the contract by the player and by the sports society.
Propósitos y principios de la Organización de las Naciones Unidas
2023
Propósitos y principios de la Organización de las Naciones Unidas. Roderic. 1. Introducción. 2. Los propósitos de las Naciones Unidas. 3. Los principios de las Naciones Unidas. Purposes and Principles of the United Nations Organization. 1. Introduction. 2. The Purposes of the United Nations. 3. The Principles of the United Nations.
Brackish water off-grid desalination systems for developing countries
2017
The REvivED water project aims to contribute to overcoming the drinking water challenge through desalination technology. The goal is to produce safe and affordable drinking water with a significantly reduced energy consumption compared to the current state-of-the-art technology. The overall project comprises several systems and applications with twelve pilots in total, ranging from Electrodialysis (ED) small systems for brackish water desalination to larger scale hybrid (RED/ED-RO) systems for sea water desalination. Specific attention is devoted to develop energy efficient and robust brackish water desalination systems for application in developing countries. To reduce the energy consumpti…
La dirigenza pubblica: criteri di identificazione e specialità della disciplina.
Nel tentativo di far luce sui maggiori coni d’ombra che emergono dalla relativa disciplina speciale del rapporto di lavoro, la tesi riflette l’esigenza di un ripensamento sistematico della figura del dirigente pubblico, nell’ottica di prospettare de iure condendo possibili correttivi. A tal fine, sono analizzate le peculiarità ed attribuzioni della dirigenza pubblica, in chiave storico-evolutiva, alla luce dei principi costituzionali e del processo riformatore che ha contrassegnato la magmatica materia, a tutt’oggi in atto. E’, altresì, rivolto uno sguardo comparativistico alla disciplina del personal directivo español, rivelandosi la stessa, speculare a quella del dirigente italiano quanto…
Criteri di ripartizione degli utili e principio di mutualità: dal d.lgs. n. 9/2008 al Pacchetto Lotti
2019
Il lavoro approfondisce la disciplina contenuta nel decreto Melandri alla luce delle modifiche da ultimo intervenute con la Legge di Stabilità 2018 sotto il profilo concernente in specie i criteri di ripartizione degli utili rivenienti dalla commercializzazione dei diritti audiovisivi ed il principio di mutualità nel calcio professionistico.
DIRITTI E RESPONSABILITA' PENALE
2008
Il libro ambisce a fornire una interpretazione innovativa della scriminante dell''esercizio di un diritto (art. 51 c.p.), quale espressione dei principi di sussidiarietà del diritto penale e del favor libertatis. Sullo sfondo, una critica - di teoria generale del diritto - al dogma della coerenza e unitarieta'' dell''ordinamento giuridico. Nella seconda parte, vengono infine esposte le ricadute operative del ragionamento.