Search results for "servi"
showing 10 items of 4470 documents
Bandwidth allocation and pricing in multimode network
2006
This paper presents adaptive resource sharing model that uses a revenue criterion to allocate network resources in an optimal way. The model ensures QoS requirements of data flows and, at the same time, maximizes the total revenue by adjusting parameters of the underlying scheduler. Besides, the adaptive model eliminates the need to find the optimal static weight values because they are calculated dynamically. The simulation consists of several cases that analyse the model and the way it provides the required QoS guarantees. The simulation reveals that the installation of the adaptive model increases the total revenue and ensures the QoS requirements for all service classes.
Congestion Avoidance Using DYnamic COdec MAnagement: A solution for ISP
2005
The large diffusion of VoIP is an essential key for the success of emerging Internet service providers. These ISPs conflict with the interests of historical and predominant network maintainers which often control the network infrastructure and telephone services. To win this competition, emerging ISPs have to adopt strategic QoS solutions which will capture the attention of network users and phone clients. This paper presents a solution which is able to obtain the same performance of a 64 Kbps channel reducing the costs for over-provisioning network bandwidth. DyCoMa is a mechanism studied for VoIP applications in network with a limited bandwidth for multimedia services. It works preventing…
Le informazioni sulla banca
2017
Lo scritto indaga sulla possibile individuazione nell'ordinamento bancario di norme volte a sancire l'obbligo di fornire ai clienti dei servizi bancari informazioni relative alla banca. Ipotizza poi rimedi a presidio di tale obbligo. The paper investigates the possible identification in the banking system of rules aimed at establishing the obligation to provide banking customers with information relating to the bank. Finally, tha Author examines possible remedies for cases of violation of this obligation.
User-cell association in heterogenous small cell networks: A context-aware approach
2015
Deploying small cells to complement the traditional cellular networks is foreseen as a major feature of the next generation of wireless networks. In this paper, a novel approach for addressing the cell association problem in heterogenous small cell networks is proposed. The presented approach exploits different types of information extracted from the user devices and environment to improve the way in which users are assigned to their serving small cell base stations (SBSs). We formulate the problem within the framework of matching theory, where the players, namely the users and SBSs, have interdependent preferences over the members of the opposite set. We also utilize the fuzzy synthetic ev…
Service discovery protocols in D2D-enabled cellular networks: Reactive versus proactive
2014
Device-to-Device (D2D) communication, which allows access services offered by nearby devices bypassing the base station, has been regarded as an essential component of the emerging 5G mobile networks. Many advantages can be provided by this direct communication paradigm such as high data rate, traffic offloading, range extension, as well as proximity services and social networking. In such a context, service discovery approaches need to be investigated. In this paper, we propose two protocols for service discovery, namely, reactive (pull) discovery and proactive (push) discovery in infrastructure-coordinated D2D networks. The protocol overhead is calculated and numerical results are provide…
Optimization of urban delivery systems based on electric assisted cargo bikes with modular battery size, taking into account the service requirements…
2021
The implementation of new forms of urban mobility is a fundamental challenge for improving the performance of city logistic systems in terms of efficiency and sustainability. For such purposes, the exploitation of electric vehicles is currently being investigated as an alternative to traditional internal combustion engines. In particular, the employment of lightweight electric cargo bikes is seen as an attractive possibility for designing improved city distribution systems. Such vehicles, however, present substantial limitations related to their endurance, speed, power, and recharging times; therefore, their configuration must be optimized considering the actual operational context and the …
Bien-être au travail et qualité des services fournis aux utilisateurs: une recherche-action à l’intérieur d’un centre hospitalier italien.
2009
Dalla metà degli anni ’70 in Europa un cospicuo numero di ricerche si è focalizzato sulla relazione benessere-lavoro dedicando una notevole attenzione ai fattori-chiave che sembrano essere determinanti per la qualità della vita lavorativa intesa come uno stato di benessere psico-fisico e sociale : la realizzazione e la crescita professionale, le relazioni sociali e professionali nel contesto di lavoro, l’ambiente fisico, i conenuti dell’attività lavorativa e la sua organizzazione. Questi fattori giocano un ruolo determinante nell’ambito dei contesti socio-sanitari: avendo un impatto notevole sulla soddisfazione degli operatori e sui loro livelli di stress e burn out, essi hanno un’influenza…
Protective role of mindfulness, self-compassion and psychological flexibility on the burnout subtypes among psychology and nursing undergraduate stud…
2021
Abstract To explore the relationship between mindfulness, self-compassion and psychological flexibility, and the burnout subtypes in university students of the Psychology and Nursing degrees, and to analyse possible risk factors for developing burnout among socio-demographic and studies-related characteristics. Design Cross-sectional study conducted on a sample of 644 undergraduate students of Nursing and Psychology from two Spanish universities. Methods The study was conducted between December 2015 and May 2016. Bivariate Pearson's correlations were computed to analyse the association between mindfulness facets, self-compassion and psychological flexibility, and levels of burnout. Multivar…
CALIDAD Y BIENESTAR EN ORGANIZACIONES DE SERVICIOS: EL PAPEL DEL CLIMA DE SERVICIO Y LA JUSTICIA ORGANIZACIONAL
2014
Este trabajo revisa los avances en la línea de investigación sobre Organizaciones de Servicios desarrollada por el IDOCAL (Instituto de Investigación en Psicología de los RRHH, Desarrollo Organizacional y Calidad de Vida Laboral, Universidad de Valencia), y la incardinación de la misma con la investigación internacional. La investigación realizada tiene como objetivo general el hacer compatible el bienestar del trabajador y su desempeño en términos de calidad de servicio ofrecida al usuario, ello en consonancia con la estrategia de la Unión Europea para salir de la crisis. Las grandes temáticas que se tratan son: la calidad de servicio, el clima de servicio, el bienestar y la justicia organ…
Towards Service-oriented 5G: Virtualizing the Networks for Everything-as-a-Service
2018
It is widely acknowledged that the forthcoming 5G architecture will be highly heterogeneous and deployed with a high degree of density. These changes over the current 4G bring many challenges on how to achieve an efficient operation from the network management perspective. In this article, we introduce a revolutionary vision of the future 5G wireless networks, in which the network is no longer limited by hardware or even software. Specifically, by the idea of virtualizing the wireless networks, which has recently gained increasing attention, we introduce the Everything-as-a-Service (XaaS) taxonomy to light the way towards designing the service-oriented wireless networks. The concepts, chall…