Search results for "Rut"
showing 10 items of 2295 documents
Infilled frames: Developments in the evaluation of cyclic behaviour under lateral loads
2005
In order to consider the modified seismic response of framed structures in the presence of masonry infills, proper models have to be formulated. Because of the complexity of the problem, a careful definition of an equivalent diagonal pin-jointed strut, able to represent the horizontal force-interstorey displacement cyclic law of the actual infill, may be a solution. In this connection the present paper, continuing a previous work in which a generalised criterion for the determination of the ideal cross-section of the equivalent strut was formulated, analizes some models known in literature for the prediction of the lateral cyclic behaviour discussing their field of validity. As a support of…
Optical active centres in ZnO samples
2006
Abstract In recent years, there has been a resurgence in the interest in the use of ZnO (Eg ∼ 3.37 eV) as a material for a wide range of opto-emitter applications spanning visible and short wavelengths. Bulk, thin films and nanomaterials obtained using different synthesis methods have been investigated for optoelectronic and biotechnological device applications. Nominally undoped bulk samples typically present a myriad-structured near-band-edge recombination, mainly due to free/bound excitons and donor–acceptor pair transitions. Furthermore, deep level emission due to intrinsic defects and extrinsic impurities, such as transition metal ions, are commonly observed in different grades of bulk…
Investīcijas kā ekonomikas attīstības galvenais faktors
2016
Maģistra darba tēma ir "Investīcijas kā ekonomikas attīstības galvenais faktors". Šī tēma ir ļoti aktuāla, jo ar investīciju palīdzību valstij ir iespējams attīstīties, būt gan konkurētspējīgai, gan inovatīvai. Tas attiecas ne tikai uz lielo biznesu, bet arī uz maziem uzņēmumiem. Maģistra darba mērķis ir izpētīt investīciju ietekmi uz ekonomikas izaugsmi un attīstību. Darbā tiek pētīta investīciju ietekme uz IKP dažādos pasaules reģionos, ieskaitot Baltijas valstis. Kā arī tiek pētīta ĀTI ietekme uz iekšzemes investīcijām gan dažādos pasaules reģionos, gan Baltijas valstīs. Tiek salīdzināta investīciju efektivitāte uz attīstīto, attīstības un pārejas valstu piemēra. Investīciju efektivitāte…
The Pyridyl Functional Groups Guide the Formation of Pd Nanoparticles Inside A Porous Poly(4-Vinyl-Pyridine)
2015
The reactivity of palladium acetate inside a poly(4-vinylpyridine-co-divinylbenzene) polymer is strongly influenced by the establishment of interaction between the Pd precursor and the pyridyl functional group in the polymer. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and simultaneous X-ray absorption near edge structure (XANES) and small angle X-ray scattering (SAXS) techniques have been applied to monitor the reactivity of palladium acetate in the presence of H-2 and CO as a function of temperature. H-2 reduces palladium acetate to Pd nanoparticles and acetic acid. The pyridyl groups in the polymer play a vital role both in stabilizing the formed acetic acid, thu…
IL PAESAGGIO COME INFRASTRUTTURA ECOLOGICA
2013
Il contributo, pubblicato nel volume Architettura/Infrastruttura, sviluppa il tema del ruolo delle nuove infrastrutture nel disegno del paesaggio della città contemporanea. Nello specifico si presenta il progetto di un parco urbano che costruisce una nuova centralità di una piccola città del Piemonte.
Le infrastrutture idriche: finanziamento, regolazione e mercato
2010
Contrariamente a quanto avvenuto in Europa negli ultimi quindici anni in molti altri settori dove le reti infrastrutturali possono essere considerati come monopoli naturali e come tali storicamente di proprietà pubblica, il settore idrico in Italia è stato sostanzialmente immune dal processo di introduzione anche parziale di forme di competizione nel mercato fra operatori. Le ragioni di tale difficoltà sono certamente di tipo oggettivo, quali le caratteristiche tecniche ed economiche che rendono molto più difficile la competizione rispetto ad altri settori quali l’energia e le telecomunicazioni, l’elevato valore della rete infrastrutturale rispetto al valore delle risorsa, le implicazioni a…
Tetrathiafulvalene-Capped Hybrid Materials for the Optical Detection of Explosives
2013
[EN] Mesoporous silica microparticles capped with TTF moieties and containing a ruthenium dye in the pores were used for the turn-on optical detection of the nitroaromatic explosives Tetryl and TNT via a selective pore uncapping and release of the entrapped dye.
Enzyme-Mediated Controlled Release Systems by Anchoring Peptide Sequences on Mesoporous Silica Supports
2011
[EN] Gated community: Peptides anchored to the surface of silica mesoporous supports by a valid procedure act as gatekeepers. In this way, "zero release" supports that selectively deliver the cargo in the presence of a suitable peptidase are obtained (see picture, red spheres: cargo, colored chains: peptides). © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Note esplicative a piè di pagina
2021
Il documento presenta 12 note a piè di pagina che esplicitano il significato di alcuni lemmi specialistici afferenti all'ambito della "Teoria e storia della Didattica". La loro presenza nella monografia intitolata "La ricerca didattica in Italia (1950-2020)" è funzionale alla comprensione di alcuni importanti temi presentati nel corpo del testo dei primi tre capitoli.