Search results for "character"
showing 10 items of 2956 documents
Previsione delle prestazioni del veicolo su strada: stato dell’arte
2016
Questo lavoro contiene una rassegna dei metodi che sono usati per la previsione delle prestazioni del veicolo su strada, in dipendenza del motore installato. La prima parte mostra il calcolo delle resistenze al moto, cioè le forze che il veicolo deve vincere per avanzare sulle strade piane e in salita. Particolarmente interessante appare la parte che riguarda la resistenza aerodinamica, della quale si tratta di metodi sperimentali (galleria del vento), metodi empirici e metodi CFD. Si propone inoltre l’applicazione della norma CUNA sulla velocità per la determinazione dei consumi anche al calcolo dei coefficienti aerodinamici. La rassegna esclude la resistenza accidentale in curva perché no…
Aerosolization Performance of Jet Nebulizers and Biopharmaceutical Aspects
2019
In this work, 13 jet nebulizers, some of which in different configurations, were investigated in order to identify the biopharmaceutical constraints related to the quality attributes of the medicinal products, which affect their safety, efficiency, compliance, and effectiveness. The aerosolization parameters, including the aerosol output, aerosol output rate, mass median aerodynamic diameter, and fine particle fraction, were determined according to the European Standard EN 13544-1, using sodium fluoride as a reference formulation. A comparison between the aerosol output nebulization time and the fine particle fraction displayed a correlation between the aerosol quality and the nebulization …
Restoration of a XVII Century’s predella reliquary: From Physico-Chemical Characterization to the Conservation Process
2021
We report on the restoration of a XVII century’s predella reliquary, which is a part of a larger setup that includes a wall reliquary and a wooden crucified Christ, both belonging to the church of “Madre Maria SS. Assunta”, in Polizzi Generosa, Sicily, Italy. The historical/artistic and paleographic research was flanked successfully by the scientific objective characterization of the materials. The scientific approach was relevant in the definition of the steps for the restoration of the artefact. The optical microscopy was used for the identification of the wood species. Electron microscopy and elemental mapping by energy-dispersive X-ray (EDX) was successful in the identification of the l…
A sustainable city environment through child safety and mobility:A challenge based on ITS?
2012
Our cities should be designed to accommodate everybody, including children. We will not move toward a more sustainable society unless we accept that children are people with transportation needs, and ‘bussing’ them around, or providing parental limousine services at all times, will not lead to sustainability. Rather, we will need to make our cities walkable for children, at least those above a certain age. Safety has two main aspects, traffic safety and personal safety (risk of assault). Besides being safe, children will also need an urban environment with reasonable mobility, where they themselves can reach destinations with reasonable effort; else they will still need to be driven. This p…
Eina interactiva per a l'anàlisi de fraus editorials en salut
2019
Revistes depredadores; Fraus editorials; Investigació; Publicació Predatory magazines; Editorial frauds; Investigation; Publication Revistas depredadoras; Fraudes editoriales; Investigación; Publicación INTRODUCCIÓ Es presenta una eina destinada als investigadors, elaborada a la Biblioteca de Ciències de la Salut de la UV. L’objectiu és comprovar la credibilitat de revistes potencialment fraudulentes, mitjançant l’anàlisi de la seua presència en bases de dades, recursos d’avaluacio de revistes científiques i el seu grau d’acompliment dels criteris de les associacions d’editors de publicacions mèdiques: https://airtable.com/shruAWiTvt9ubJnCn/tblRP5wUJfU83lbv5?blocks=hide MÈTODE S'ha partit d…
Les déterminants personnels du bien-être de l’écolier, de ses satisfactions en classe et de sa performance scolaire
2017
This work focuses on the study of personal determinants of pupils' achievement and reactions toward class (well-being; satisfaction with teacher, learning and class). A theoretical model is tested by commonality analysis and refined by causal paths analysis. The results show that external and cognitive prior characteristics (age, gender, socio-occupational background, academic record) have direct effects on criteria variables, and indirectly via the attitudes toward school (negative feelings; scholastic interest; aspirations for future studies; "scholastic anxiety, worry and stress"; fun school). Using two structural models, we explained 39 % of the variance in academic achievement, and fro…
Production d’hamburger de filet de dorade (Sparus aurata) d’élevage: caractérisation nutritionnelle et sensorielle au cours du shelf-life
2016
Within the framework of the Work Package 5 «Valorisation de l'image des produits aquacoles» and the activity 5.3 «Innovation en vue de valoriser les produits aquacoles» of SecurAqua project, we have assessed the possibility of diversification of Sicilian farmed fish, through the production of processed products, among which seabream fillets hamburgers. In order to verify the feasibility of the process, we have performed a preliminary study of global quality characteristics of the product, including both the nutritional and sensory aspects correlated to the security and sustainability of the product. Results showed that, in terms of nutritional requirements, the hamburger samples maintained …
Charge Transport Mechanisms in Heavy-Ion Driven Leakage Current in Silicon Carbide Schottky Power Diodes
2016
Under heavy-ion exposure at sufficiently high reverse bias voltages silicon carbide (SiC) Schottky diodes are observed to exhibit gradual increases in leakage current with increasing ion fluence. Heavy-ion exposure alters the overall reverse current-voltage characteristics of these diodes, leaving the forward characteristics practically unchanged. This paper discusses the charge transport mechanisms in the heavy-ion damaged SiC Schottky diodes. A macro model, describing the reverse current-voltage characteristics in the degraded SiC Schottky diodes is proposed. peerReviewed
Monitoring WWTP performance using size-exclusion chromatography with simultaneous UV and fluorescence detection to track recalcitrant wastewater frac…
2018
A trial monitoring of a typical full-scale municipal WWTP in Central Finland was aimed to explore applicability of high performance liquid chromatography – size exclusion chromatography (HPSEC) with simultaneous UV and fluorescence detection as a tool for advanced routine monitoring of wastewater treatment. High, intermediate, and low molecular weight (MW) fractions of untreated wastewater (influent) and treated wastewater (secondary effluent) were characterized in terms of UV absorbance at 254 nm (UVA254) and specific fluorescence representing tyrosine-like, tryptophan-like, and humic/fulvic-like compounds. The activated sludge treatment removed 97 ± 1% of BOD, 93 ± 2% of COD, 71 ± 7% of D…
Analysis of a database to predict the result of allergy testing in vivo in patients with chronic nasal symptoms.
2014
Background This article uses the logistic regression model for diagnostic decision making in patients with chronic nasal symptoms. We studied the ability of the logistic regression model, obtained by the evaluation of a database, to detect patients with positive allergy skin-prick test (SPT) and patients with negative SPT. The model developed was validated using the data set obtained from another medical institution. Methods The analysis was performed using a database obtained from a questionnaire administered to the patients with nasal symptoms containing personal data, clinical data, and results of allergy testing (SPT). All variables found to be significantly different between patients w…