Search results for " INO"

Thermal and Mechanical Characterization of Yarn Samples from Flemish Tapestry of the Sixteenth Century

2022

We propose a physico-chemical approach for theharacterization of the conservation condition of yarns from a Flemish tapestry of the sixteenth century. The aging effect on the yarns’ performance was evaluated by comparison with commercial materials. Water uptake experiments highlighted the aptitude of yarns toward water sorption and their increased hydrophilicity upon aging. Thermogravimetric analysis can be considered a fast approach for the fiber identification and assessment on the material life-time. The dynamic mechanical analysis provided direct evidence on the yarns, conservation state and their performance under different mechanical stresses. The proposed characterization path can be…

Patērētāju uzvedību ietekmējošie faktori elektromobiļa iegādei Latvijā

2018

Aizvien plašāk pasaulē izskan diskusijas par ilgtspējas nozīmību un vides saglabāšanu nākamajām paaudzēm. Tādēļ ir izstrādātas vairākas Eiropas Savienības direktīvas un stratēģijas, kuru mērķis ir samazināt CO2 izmešu daudzumu un ilgtermiņā vispār atteikties no automašīnām, kuras darbojas ar fosilajiem degvielas iekšdedzes dzinējiem. Elektromobiļu skaita palielināšana patērētāju vidū ir viens no efektīvākajiem risinājumiem apkārtējās vides uzlabošanai ilgtermiņā. Bakalaura darbs “Patērētāju uzvedību ietekmējošie faktori elektromobiļa iegādei Latvijā” ir izstrādāts ar mērķi izpētīt elektromobiļu infrastruktūras attīstību Baltijas valstīs, kā arī analizēt patērētāju uzvedību attiecībā uz elek…

Study of the anisotropy of thermal infrared emissivity of inorganic bare soils at different moisture levels

2013

I. Introducción La técnica responsable de obtener información de un objeto lejano si contacto físico con éste, se llama Teledetección. Esta técnica ha demostrado ser una alternativa muy ventajosa frente a otros métodos cuya adquisición de datos es más lenta y costosa. La Teledetección usa sensores a bordo de satélites, para medir la radiación emitida por las superficies terrestres en diferentes partes del espectro electromagnético, con la intención de entender mejor los procesos físicos ocurridos en tierra, océanos o atmósfera. El intercambio de energía superficie-atmosfera, estimaciones de la evapotranspiración, monitorización del efecto invernadero o estudios de desertificación y degradac…

Thermoelectrics: From history, a window to the future

2019

Thermoelectricity offers a sustainable path to recover and convert waste heat into readily available electric energy, and has been studied for more than two centuries. From the controversy between Galvani and Volta on the Animal Electricity, dating back to the end of the XVIII century and anticipating Seebeck’s observations, the understanding of the physical mechanisms evolved along with the development of the technology. In the XIX century Ørsted clarified some of the earliest observations of the thermoelectric phenomenon and proposed the first thermoelectric pile, while it was only after the studies on thermodynamics by Thomson, and Rayleigh’s suggestion to exploit the Seebeck effect for …

Riflessioni critiche sulla potenza destituente nel pensiero di Giorgio Agamben

Il presente lavoro di ricerca intende offrire una rilettura del pensiero di Giorgio Agamben alla luce della pubblicazione di L’uso dei corpi, volume con cui si conclude il ventennale progetto “Homo sacer”. In particolare, si discuteranno alcune nozioni fondamentali della filosofia agambeniana – nuda vita, stato di eccezione, inoperosità, forma-di-vita – a partire dalla formulazione conclusiva, ma non definitiva, che il filosofo propone nel libro in questione, per poi focalizzare l’attenzione sulla categoria nella quale si condensa l’intero percorso filosofico di Agamben: la “potenza destituente”. Quest’ultima viene definita come una potenza in grado di disattivare e rendere inoperosa la mac…

LA FRAGMENTATION DES RÉSEAUX D'INNOVATION ET LA DYNAMIQUE DES SYSTÈMES TERRITORIAUX DE PRODUCTION ET D'INNOVATION DANS LES SECTEURS TRADITIONNELS

2016

Resumen: Para competir en la globalización, los sistemas territoriales de producción en sectores tradicionales deben convertirse en sistemas territoriales de producción y de innovación. Esto supone urdir redes de innovación más complejas entre actores heterogéneos (empresas, universidades, centros tecnológicos, etc.), lo que genera una tensión política de integración/fragmentación de dichas redes. Para contrastar esta hipótesis se combinan los enfoques evolucionista y del actor-red con el enfoque de la proximidad. La construcción de redes de innovación más amplias exige desarrollar nuevas comunidades de práctica. Este proceso puede generar una dinámica de fragmentación por medio del estable…

Mesoporous silica microparticles gated with a bulky azo derivative for the controlled release of dyes/drugs in colon.

2018

[EN] Mesoporous silica microparticles were prepared, loaded with the dye safranin O (M-Saf) or with the drug budesonide (M-Bud) and capped by the grafting of a bulky azo derivative. Cargo release from M-Saf at different pH values (mimicking those found in the gastrointestinal tract) in the absence or presence of sodium dithionite (a reducing agent mimicking azoreductase enzyme present in the colon) was tested. Negligible safranin O release was observed at pH 6.8 and 4.5, whereas a moderate delivery at pH 1.2 was noted and attributed to the hydrolysis of the urea bond that linked the azo derivative onto the external surface of the inorganic scaffold. Moreover, a marked release was observed w…

Phytoplankton in the physical environment: beyond nutrients, at the end, there is some light

2009

This article summarizes the outcomes of the 15th Workshop of the International Association for Phytoplankton Taxonomy and Ecology. Four major issues dealing with the role of physical factors in phytoplankton ecology were addressed in the articles of this special volume: global change and its likely impacts on phytoplankton, the role of physical factors in the autecology of particular species, impacts on the inocula for the following years, and the role of light in shaping phytoplankton dynamics. Case studies from different types of aquatic environments (rivers, deep and shallow lakes, floodplain lakes, wetlands, oxbows, and even the deep ocean) and from diverse geographical locations (not o…

Isotope distribution of dissolved carbonate species in southeastern coastal aquifers of Sicily (Italy)

2007

Concentrations of major ions and the δ13C composition of dissolved inorganic carbon in groundwater and submarine groundwater discharges in the area between Siracusa and Ragusa provinces, southeastern Sicily, representing coastal carbonate aquifers, are presented and discussed. Most of groundwater analysed belongs to calcium bicarbonate type, in agreement with the geological nature of carbonate host rocks. Carbonate groundwater acquires, besides the dissolution of carbonate minerals, dissolved carbon (and the relative isotopic composition) from the atmosphere and from soil biological activity. In fact, δ13C values and total dissolved inorganic carbon contents show that both these sources con…

Diorganotin(IV) complexes ofD-galacturonic acid: solid-state and solution-phase structural study

2003

Three diorganotin(IV) complexes of D-galacturonic acid (H2GalA; R = Me, n-Bu, Ph), two of which are new derivatives (R = Me, Ph), have been synthesized and their solid-state and solution-phase investigated by IR, Mossbauer, 1H, 13C and 119Sn NMR spectroscopy. The FTIR data suggest that H2GalA, in the dialkyltin derivatives, behaves as a dianionic ligand, coordinating the tin(IV) atom through an ester-type carboxylate and deprotonated alcoholic hydroxo groups, whereas a bridging carboxylate occurs in the diphenyltin(IV) complex. Octahedral and trigonal bipyramidal local geometries on tin(IV) atoms are proposed for dialkyltin(IV)GalA and diphenyltin(IV)GalA complexes respectively on the basis…