Search results for " blue"

A comparative study for the removal of methylene blue dye by N and S modified TiO2 adsorbents

2015

Successful removal of methylene blue (MB) dye from aqueous solutions using nitrogen and sulfur modified TiO2(P25) nanoparticles has been demonstrated in this study. The modified adsorbents were characterized using various analytical methods, such as X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The adsorption potential of S-TiO2, N-TiO2 and TiO2(P25) type adsorbents was tested for the removal of MB dye. The kinetic studies indicated that the adsorption of MB dye followed the pseudo-first order model, while desorption processes followed the second order model. The adsorption capacity of the adsorbent proved to be increasing as a f…

NATURAL INDICO FROM ISATIS TINCTORIA L. FOR THE VALORISATION OF SICILIAN CROPS

2012

Isatis tinctoria L. or woad (Brassicaceae) is an upright herbaceous biennal species up to 120 cm in height. It is in Mediterranean counlries, a common plant cultivated through out centuries to produce the blue dye indigo. With increasing concem for sustainability and a demand from consumers for naturally sourced products, there is a revival of interest in naturai indigo as an agricultural crop produci. Indigo is formed after the extraction of indigo precursors in the leaves of these plants: mainly isatans in woad These compounds are extracted by steeping leaves in warm water. With woad, the addition of alkali to the steep water releases free indoxyl, which forms indigo after a vigorous aera…

Fatty Acids Profile as a Tool for Traceability of Bluefin Tuna (Thunnus thynnus) Canned Products

2008

EFFECT OF SLAUGHTERING METHODS ON STRESS OF CAGED BLUEFIN TUNA (THUNNUS THYNNUS).

2007

Il tessuto del mare. Manfredonia. Blue in green

2010

Alcuni cliché descrittivi, adoperati per la città contemporanea, sembrano potersi usare ovunque sia necessario tratteggiare caratteri urbani privi di qualunque specificità. Fra le valutazioni stereotipate prevale quella della città-caos, soprattutto quando la struttura urbana si presenta come unica nebulosa antropica in cui è impossibile identificare i diversi nuclei urbani che la compongono. Tale condizione sembra essere del tutto estranea alla realtà di Manfredonia che è nettamente distinta dagli altri centri che insistono sull'ampia pianura del Gargano. Il saggio si occupa criticamente degli esiti del workshop svolto a Manfredonia dal 9 al 13 settembre 2009 dal titolo "Il Golfo di Manfre…

Offloading through Opportunistic Networks with Dynamic Content Requests

2014

Offloading is gaining momentum as a technique to overcome the cellular capacity crunch due to the surge of mobile data traffic demand. Multiple offloading techniques are currently under investigation, from modifications inside the cellular network architecture, to integration of multiple wireless broadband infrastructures, to exploiting direct communications between mobile devices. In this paper we focus on the latter type of offloading, and specifically on offloading through opportunistic networks. As opposed to most of the literature looking at this type of offloading, in this paper we consider the case where requests for content are non-synchronised, i.e. users request content at random …

Il colore ‘blu’ nel medioevo frisone: afris. wēden, wēdan, wēdin

2022

The colour words have always been a fascinating topic of study for scholars of various disciplines, including linguists, philologists, psychologists, philosophers and anthropologists. A survey of the occurrences of the Old Frisian word wēden, wēdan, wēdin (cf. OE wǣden, OHG weit, presumably stemming from a Gmc *waizda-, waidīna-, a root meaning ‘woad, plant yielding blue dye’), might allow us to specify the various semantic fields covered by this lexeme, as well as the relevant contexts of use.

IL TUMORE DI ASKIN. Descrizione di un caso clinico e Revisione della Letteratura

1993

The Authors report a case of Askin's tumor, considered a peripheral Neuroectodermal tumor (PNET) and the correct treatment on diagnosi and therapy is reported

Modeling the remnants of core-collapse supernovae from luminous blue variable stars

2021

LBVs are massive evolved stars that suffer sporadic and violent mass-loss events. They have been proposed as the progenitors of some core-collapse SNe, but this idea is still debated due to the lack of direct evidence. Since SNRs can carry in their morphology the fingerprints of the progenitor stars as well as of the inhomogeneous CSM sculpted by the progenitors, the study of SNRs from LBVs could help to place core-collapse SNe in context with the evolution of massive stars. We investigate the physical, chemical and morphological properties of the remnants of SNe originating from LBVs, in order to search for signatures, revealing the nature of the progenitors, in the ejecta distribution and…

Photoinduced effects on the magnetic properties of the (Fe0.2Cr0.8)1.5[Cr(CN)6] Prussian blue analogue

2019

International audience; One of the most attractive characteristics of some Prussian blue derivatives is the sensitivity of their magnetic properties to the irradiation with light. In this work photoinduced effects in the (Fe0.2Cr0.8)1.5[Cr(CN)6]·15H2O PBA have been studied by means of X-ray-based spectroscopies and magnetometry. It is found that the photosensitivity of this compound is mostly centred on the Fe cations: the exposure to green light induces a transfer of electrons from them to the Cr that provokes a reversal of the previously existing linkage isomerization and increases the elastic strain caused by the misfit of the unit cells of the Fe–NC–Cr and Cr–NC–Cr sublattices. The gree…