Search results for "Trie"
showing 10 items of 4468 documents
L’ A B S I D E. COSTRUZIONE E GEOMETRIE
2015
Le absidi costituiscono solitamente la prima parte di una fabbrica che viene posta in opera. L'aspettativa di tempi lunghi del cantiere spinge a realizzare immediatamente opere fastose e decorate in grado di gratificare committenti che non vedranno mai conclusi i lavori. Dal punto di vista geometrico i progetti prodotti nell'Europa del Sud hanno seguito, nei secoli, schemi per lo più convenzionali (strutture semicircolari, quadrangolari o generate da poligoni ottagonali) ma non mancano le eccezioni e i tentativi di definire soluzioni alternative (valgano per tutte la struttura treboladas castigliane, la scelta di usare l'abside come base per un campanile o le conformazioni derivanti da poli…
The value of accessibility in the culturalandcreative industries Translation-driven settings
2020
The accessibility of Cultural Creative Industries(CCI) has grown exponentially in different parts of the globe and has increasingly become part of projects of significant importance in contemporary societies that rely on informational, global, and networked systems of communication, i.e., developed countries. CCI exist within public-domain areas and are stimulated by the critical rethinking of the means which can be used to support cultural development. CCI are in fact driven by structures of the knowledge-based economy, where information, originality, and creativity contribute to providing stimuli to their rise. Their emergence is the result of advances in cultural spheres and movements, a…
Il contratto collettivo aziendale in una prospettiva comparata. Italia, Francia, Spagna e Stati Uniti a confronto
2014
Sulla scorta del metodo comparato, la tesi analizza le recenti modifiche alla disciplina del contratto collettivo aziendale in Italia, Francia e Spagna, introdotte dalla legge e dagli accordi interconfederali; l'obiettivo è dimostrare un tendenziale avvicinamento degli stati europei analizzati al sistema nord-americano di relazioni industriali, in cui il rapporto di lavoro è regolato non tanto dalla legge o dall'accordo di categoria, ma dal contratto aziendale.Vengono inoltre analizzati i recenti accordi collettivi firmati alla Fiat ed alla Chrysler a partire dal processo di integrazione iniziato nel 2009. According to the comparative method, the thesis analyses the recent changes to the di…
NuSTAR and NICER reveal IGR J17591-2342 as a new accreting millisecond X-ray pulsar
2018
We report the discovery by the Nuclear Spectroscopic Telescope Array (NuSTAR) and the Neutron Star Interior Composition Explorer (NICER) of the accreting millisecond X-ray pulsar IGR J17591-2342. Coherent X-ray pulsations around 527.4 Hz (1.9 ms) with a clear Doppler modulation were detected. This implies an orbital period of ∼8.8 h and a projected semi-major axis of ∼1.23 lt-s. With the binary mass function, we estimate a minimum companion mass of 0.42 M, obtained assuming a neutron star mass of 1.4[subscript ⊙] and an inclination angle lower than 60°, as suggested by the absence of eclipses or dips in the light curve of the source. The broad-band energy spectrum, obtained by combining NuS…
Scientific Merits and Analytical Challenges of Tree‐Ring Densitometry
2019
X-ray microdensitometry on annually resolved tree-ring samples has gained an exceptional position in last-millennium paleoclimatology through the maximum latewood density (MXD) parameter, but also increasingly through other density parameters. For 50 years, X-ray based measurement techniques have been the de facto standard. However, studies report offsets in the mean levels for MXD measurements derived from different laboratories, indicating challenges of accuracy and precision. Moreover, reflected visible light-based techniques are becoming increasingly popular, and wood anatomical techniques are emerging as a potentially powerful pathway to extract density information at the highest resol…
Performance of a Chromolith RP-18e column for the screening of β-blockers
2009
The chromatographic performance of a monolithic column (Chromolith RP-18e) was comprehensively examined in the isocratic separation of ten beta-blockers, using ACN-water mobile phases, and compared with the performance of three microparticulate RP columns manufactured with different types of silica: Spherisorb ODS-2, Kromasil C18 and XTerra MS C18. The comparison considered the analysis time, selectivity, peak shape (column efficiency and asymmetry) and resolution, and was extended to a wide range of mobile phase compositions. The Chromolith column showed good performance for the analysis of beta-blockers with regard to the packed columns. In terms of selectivity and analysis time, the grea…
Application of the General Model "Biological Nutrient Removal Model No.1" to upgrade two full-scale WWTPs
2012
In this paper, two practical case studies for upgrading two wastewater treatment plants (WWTPs) using the general model BNRM1 (Biological Nutrient Removal Model No. 1) are presented. In the first case study, the Tarragona WWTP was upgraded by reducing the phosphorus load to the anaerobic digester in order to minimize the precipitation problems. Phosphorus load reduction was accomplished by mixing the primary sludge and the secondary sludge and by elutriating the mixed sludge. In the second case study, the Alcantarilla WWTP, the nutrient removal was enhanced by maintaining a relatively low dissolved oxygen concentration in Stage A to maintain the acidogenic bacteria activity. The VFA produce…
Semantic structures of timbre emerging from social and acoustic descriptions of music
2011
The perceptual attributes of timbre have inspired a considerable amount of multidisciplinary research, but because of the complexity of the phenomena, the approach has traditionally been confined to laboratory conditions, much to the detriment of its ecological validity. In this study, we present a purely bottom-up approach for mapping the concepts that emerge from sound qualities. A social media ( http://www.last.fm ) is used to obtain a wide sample of verbal descriptions of music (in the form of tags) that go beyond the commonly studied concept of genre, and from this the underlying semantic structure of this sample is extracted. The structure that is thereby obtained is then evaluated th…
Archetypal analysis: an alternative to clustering for unsupervised texture segmentation
2019
Texture segmentation is one of the main tasks in image applications, specifically in remote sensing, where the objective is to segment high-resolution images of natural landscapes into different cover types. Often the focus is on the selection of discriminant textural features, and although these are really fundamental, there is another part of the process that is also influential, partitioning different homogeneous textures into groups. A methodology based on archetype analysis (AA) of the local textural measurements is proposed. AA seeks the purest textures in the image and it can find the borders between pure textures, as those regions composed of mixtures of several archetypes. The prop…
The 2020 magnetism roadmap
2020
Following the success and relevance of the 2014 and 2017 Magnetism Roadmap articles, this 2020 Magnetism Roadmap edition takes yet another timely look at newly relevant and highly active areas in magnetism research. The overall layout of this article is unchanged, given that it has proved the most appropriate way to convey the most relevant aspects of today's magnetism research in a wide variety of sub-fields to a broad readership. A different group of experts has again been selected for this article, representing both the breadth of new research areas, and the desire to incorporate different voices and viewpoints. The latter is especially relevant for thistype of article, in which one's fi…