Search results for "app"
showing 10 items of 28370 documents
The water shuttling hypothesis in Lithops
2011
Few-body insights of multiquark exotic hadrons
2018
In this contribution we discuss the adequate treatment of the $4-$ and $5-$body dynamics within a constituent quark framework. We stress that the variational and Born-Oppenheimer approximations give energies rather close to the exact ones, while the diquark approximation might be rather misleading. Hall-Post inequalities provide very useful lower bounds that exclude possible stable states for some mass ratios and color wave functions.
Una más de la familia. Au pairs atrapadas entre el capital humano y la economía moral
2018
In contemporary societies we are witnessing an expansion of the messages of human capital. These messages have as their central dimension idea of the self-entrepreneur, which implies a deepening in the logic of activation, while blurring the wage relations. In this scenario, young people with university degrees are becoming a favourite target in the offensive of human capital. The penetration of these human capital messages can be seen in the discourses of young university students who have been forced to leave the country during the crisis. In the present text we approach the discourses of young women who came out as au pairs. The characteristics of this figure place it in a space halfway …
Relaxation of a weakly discontinuous functional depending on one control function
2008
The paper considers an optimal control problem of the typewhere the set M of admissible controls consists of all measurable vector‐functions h, which can take only two values h1 or h2. It is shown that the relaxation of this problem can be explicitly computed by rank‐one laminates.
The Effect of Electrolytic Solution Composition on the Structure, Corrosion, and Wear Resistance of PEO Coatings on AZ31 Magnesium Alloy
2020
Plasma electrolytic oxidation coatings were prepared in aluminate, phosphate, and silicate-based electrolytic solutions using a soft-sparking regime in a multi-frequency stepped process to compare the structure, corrosion, and wear characteristics of the obtained coatings on AZ31 magnesium alloy. The XRD results indicated that all coatings consist of MgO and MgF2, while specific products such as Mg2SiO4, MgSiO3, Mg2P2O7, and MgAl2O4 were also present in specimens based on the selected solution. Surface morphology of the obtained coatings was strongly affected by the electrolyte composition. Aluminate-containing coating showed volcano-like, nodular particles and craters distributed over the …
Effect of Boron Doping on the Wear Behavior of the Growth and Nucleation Surfaces of Micro- and Nanocrystalline Diamond Films
2016
B-doped diamond has become the ultimate material for applications in the field of microelectromechanical systems (MEMS), which require both highly wear resistant and electrically conductive diamond films and microstructures. Despite the extensive research of the tribological properties of undoped diamond, to date there is very limited knowledge of the wear properties of highly B-doped diamond. Therefore, in this work a comprehensive investigation of the wear behavior of highly B-doped diamond is presented. Reciprocating sliding tests are performed on micro- and nanocrystalline diamond (MCD, NCD) films with varying B-doping levels and thicknesses. We demonstrate a linear dependency of the we…
SAIApp: un'app dell'Università di Palermo dedicata ai bambini con malattie autoinfiammatorie
2021
MVC Frameworks in Web Development
2012
With the increased demand of complex, well-scalable and maintainable web applications, the MVC architecture is increasing in popularity and frameworks (whether they utilize the MVC architecture or not) are quickly becoming de facto –standard in web development. This Bachelor’s Thesis introduces the use of MVC architecture in web development and how several web application frameworks make use of it. This research introduces the concepts of both the MVC architecture and web application frameworks but does not go into the basics of web development. Three examples of web application frameworks that utilize the MVC architecture are introduced. Due to the constraints provided by the size of this …
Le Crowdsourcing : problématisation sensible autour d'une mise en forme du lien communautaire
2014
International audience; Alors que l’utilisation des plateformes sociales (réseaux sociaux, blogs, wikis) est désormais généralisée (du côté des internautes comme des organisations), on observe un investissement et un intérêt croissant pour les plateformes de création collaborative, issues du paradigme de l’open-innovation (H.Chesbrough). On insistera plus exactement sur les dispositifs de crowdsourcing et de co-création en ligne ayant pour point commun la mise en relation de communautés (de professionnels, d’ingénieurs, de designers, d’experts, de fans…) avec les enjeux communicationnels des organisations. La recherche à propos de ces nouveaux espaces de collaboration en ligne a été jusqu’i…
Il percorso (incerto) della c.d. web tax italiana tra modelli internazionali ed eurounitari di tassazione della digital economy
2019
L’articolo analizza gli aspetti essenziali dell’evoluzione delle strategie di tassazione delle imprese della digital economy, tanto a livello internazionale, quanto a livello eurounitario, per concludere, poi, con un’analisi dell’art. 1, commi 35 e segg., della Legge 30 dicembre 2018 n. 145 (legge di bilancio 2019), che ha introdotto, nel nostro sistema una vera e propria imposta sulle imprese che operano nel settore digitale, denominata “imposta sui servizi digitali” (ISD). Si osserva, a riguardo, che nel comparto della digital economy, quanto all’aspetto della tassazione, è possibile individuare tre diversi approcci. Il primo attribuisce particolare rilievo alla c.d. “presenza economica s…