Search results for "44"
showing 10 items of 1507 documents
L'arquitectura dins la cultura nobiliària a Xàtiva
2018
El present treball busca analitzar i destacar aquelles arquitectures que l’estament nobiliari de Xàtiva va manar construir amb la finalitat de mostrar el seu poder al poble. Així mateix, és un intent de fer valer els edificis i els elements que se n’han conservat fins als nostres dies. La metodologia seguida consta d’una primera anàlisi del parc edificat per avaluar-ne l’arquitectura i d’una cerca a diferents arxius per conèixer l’evolució, tant de les construccions com de les diferents nissagues que les van habitar. Tot això ens permet concloure que, en el cas xativí, existeix una xifra elevada d’edificis erigits per la classe nobiliària que encara hui es mantenen dempeus, a la vegada que …
Macro-regional Strategies, Cohesion Policy and Regional Cooperation in the European Union: Towards a Research Agenda
2018
Since 2009, the European Union has developed strategies for the Baltic Sea, Danube, Adriatic-Ionian and Alpine macro-regions. These macro-regional strategies represent a new tool of European Union governance that seeks to combine the community’s territorial cooperation and cohesion policy repertoire with intergovernmental ‘regional cooperation’ involving European Union member and partner countries. By establishing comprehensive governance architectures for cross-sectoral and trans-boundary policy coordination in areas such as transport infrastructure and environmental protection, macro-regional strategies seek to mobilise European Union member and non-member states alike in promoting and h…
PBAT Based Composites Reinforced with Microcrystalline Cellulose Obtained from Softwood Almond Shells
2021
This study explores the processability, mechanical, and thermal properties of biocompostable composites based on poly (butylene adipate-co-terephthalate) (PBAT) as polymer matrix and microcrystalline cellulose (MCC) derived from softwood almond (Prunus dulcis) shells (as-MCC) as filler at two different weight concentration, i.e., 10 wt% and 20 wt%. The materials were processed by melt mixing and a commercial MCC (c-MCC) was used as filler comparison. The fibrillar shape of as-MCC particles was found to change the rheological behavior of PBAT, particularly at the highest concentration. The melt mixing processing allowed obtaining a uniform dispersion of both kinds of fillers, slightly reduci…
Two-Dimensional Carbon: A Review of Synthesis Methods, and Electronic, Optical, and Vibrational Properties of Single-Layer Graphene
2019
Graphite has been widely used by humans for a large part of their history. Nevertheless, it has only recently been possible to isolate its basic unit: carbon atoms arranged in a honeycomb structure on a single plane, namely graphene. Since its discovery, many techniques have been developed and improved to properly synthesize graphene and its derivatives which are part of the novel class of two-dimensional materials. These advanced materials have imposed themselves in nanotechnology thanks to some outstanding physical properties due to their reduced dimensions. In the case of graphene, its reduced dimension gives rise to a high electrical mobility, a large thermal conductivity, a high mechan…
Host–guest complexes of conformationally flexible C-hexyl-2-bromoresorcinarene and aromatic N-oxides: solid-state, solution and computational studies
2018
Host–guest complexes of C-hexyl-2-bromoresorcinarene (BrC6) with twelve potential aromatic N-oxide guests were studied using single crystal X-ray diffraction analysis and 1H NMR spectroscopy. In the solid state, of the nine obtained X-ray crystal structures, eight were consistent with the formation of BrC6-N-oxide endo complexes. The lone exception was from the association between 4-phenylpyridine N-oxide and BrC6, in that case the host forms a self-inclusion complex. BrC6, as opposed to more rigid previously studied C-ethyl-2-bromoresorcinarene and C-propyl-2-bromoresorcinarene, undergoes remarkable cavity conformational changes to host different N-oxide guests through C–H···π(host) intera…
The Role of Eucalyptus Species on the Structural and Thermal Performance of Cellulose Nanocrystals (CNCs) Isolated by Acid Hydrolysis
2022
Cellulose nanocrystals (CNCs) are attractive materials due to their renewable nature, high surface-to-volume ratio, crystallinity, biodegradability, anisotropic performance, or available hydroxyl groups. However, their source and obtaining pathway determine their subsequent performance. This work evaluates cellulose nanocrystals (CNCs) obtained from four different eucalyptus species by acid hydrolysis, i.e., E. benthamii, E. globulus, E. smithii, and the hybrid En × Eg. During preparation, CNCs incorporated sulphate groups to their structures, which highlighted dissimilar reactivities, as given by the calculated sulphate index (0.21, 0.97, 0.73 and 0.85, respectively). Although the impact o…
Carbon Nanomaterial Doped Ionic Liquid Gels for the Removal of Pharmaceutically Active Compounds from Water.
2019
Due to large drug consumption, pharmaceutically active compounds (PhACs) can be found as water contaminants. The removal of PhACs is a significant issue, as they can easily overtake traditional purification methods. Because of their surface properties, carbon nanomaterials are among the most efficient materials able to adsorb PhACs. However, their limitation is their recovery after use and their possible leakage into the aquatic system. Consequently, new hybrid supramolecular ionic liquid gels (HILGs) have been designed for the adsorption of some antibiotic drugs (ciprofloxacin and nalidixic acid) from water. The chemical&ndash
CCDC 706487: Experimental Crystal Structure Determination
2009
Related Article: G.Podoprygorina, M.Bolte, V.Bohmer|2009|Org.Biomol.Chem.|7|1592|doi:10.1039/b819710e
CCDC 1850751: Experimental Crystal Structure Determination
2020
Related Article: Eswaran Chinnaraja, Rajendran Arunachalam, Renjith S. Pillai, Anssi Peuronen, Kari Rissanen, Palani S. Subramanian|2020|Appl.Organomet.Chem.|34|e5666|doi:10.1002/aoc.5666
CCDC 938919: Experimental Crystal Structure Determination
2014
Related Article: Gaston R. Schaller, Filip Topić, Kari Rissanen, Yoshio Okamoto, Jun Shen, Rainer Herges|2014|Nature Chemistry|6|608|doi:10.1038/NCHEM.1955