Search results for "virtual"
showing 10 items of 1485 documents
On achieving intelligent traffic-aware consolidation of virtual machines in a data center using Learning Automata
2018
Unlike the computational mechanisms of the past many decades, that involved individual (extremely powerful) computers or clusters of machines, cloud computing (CC) is becoming increasingly pertinent and popular. Computing resources such as CPU and storage are becoming cheaper, and the servers themselves are becoming more powerful. This enables clouds to host more virtual machines (VMs). A natural consequence ofthis is that many modern-day data centers experience very high internaltraffic within the data centers themselves. This is, of course, due to the occurrence of servers that belong to the same tenant, communicating between themselves. The problem is accentuated when the VM deployment t…
Sempre più Realtà Virtuale
2016
Le tecnologie evolvono rapidamente, il mercato sembra recepirle con entusiasmo e inoltre iniziano a vedersi contenuti davvero interessanti, insomma la realtà virtuale sembra ormai essere una realtà
Development of virtual money as a response to the imperfections of the modern financial system
2018
This article attempts to answer the question what factors led to the establishment of bitcoin - the first digital money which is completely private and independent of central banks or any other supervisory authority. In the article enumerated many factors, but indicated the most important which was the global financial crisis in 2008. Additionally, the article presents the genesis of bitcoin, the comparison to classic money and its unique features which are also the reasons for its unprecedented popularity.
Best practices, challenges and innovations in pediatrics in 2019
2020
AbstractThis paper runs through key progresses in epidemiology, pathomechanisms and therapy of various diseases in children that were issued in the Italian Journal of Pediatrics at the end of last year. Novel research and documents that explore areas such as allergy, critical care, endocrinology, gastroenterology, infectious diseases, neonatology, neurology, nutrition, and respiratory tract illnesses in children have been reported. These observations will help to control childhood illnesses.
Virtual Resource Allocation for Wireless Virtualized Heterogeneous Network with Hybrid Energy Supply
2022
In this work, two novel virtual user association and resource allocation algorithms are introduced for a wireless virtualized heterogeneous network with hybrid energy supply. In the considered system, macro base stations (MBSs) are supplied by the grid power and small base stations (SBSs) have the energy harvesting capability in addition to the grid power supplement. Multiple infrastructure providers (InPs) own the physical resources, i.e., BSs and radio resources. The Mobile Virtual Network Operators (MVNOs) are able to recent these resources from the InPs and operate the virtualized resources for providing services to different users. In particular, aiming to maximize the overall utility …
An adaptive display to treat stress-related disorders: EMMA's World
2009
ABSTRACT Most of the virtual environments currently available in the field of psychological treatments were designed to solve a specific problem. Our research group has developed a versatile virtual reality system (an adaptive display) called ‘EMMA's world’, which can address a wide range of problems. It was designed to assist in clinical situations where a person has suffered a stressful experience, for example post-traumatic stress disorder, adjustment disorder, and pathological grief. To accomplish therapeutic goals, a series of emotional virtual elements are used and personalised so that they are meaningful to the user and contain the fundamental emotional elements that the person must …
Intercepting real and simulated falling objects: what is the difference?
2009
International audience; The use of virtual reality is nowadays common in many studies in the field of human perception and movement control, particularly in interceptive actions. However, the ecological validity of the simulation is often taken for granted without having been formally established. If participants were to perceive the real situation and its virtual equivalent in a different fashion, the generalization of the results obtained in virtual reality to real life would be highly questionable. We tested the ecological validity of virtual reality in this context by comparing the timing of interceptive actions based upon actually falling objects and their simulated counterparts. The r…
Sociability in Virtual Reality
2021
This study investigates sociability in the context of immersive Virtual Reality (VR). A Design Science Research process was applied, and three iterative development versions of a VR application were studied. Sociability around the technology was investigated with two theoretical perspectives: social presence and social interactions. The results of qualitative interviews and observations as well as a quantitative experiment are combined to make a proposal for four design principles enhancing the beneficial sociability of VR systems. These principles address the importance of ease-of-use and personalization in the activation of a customer, customer empowerment and emancipation through familia…
Recovering Sicilian Silk Heritage through Digital Technologies: The Case of Piraino’s Collection
2022
Textile conservation has given rise to small and medium-sized museums, usually with scarce resources. In Sicily, the little evidence that remains of silk production and opulent imports by the rich and powerful local aristocracy is kept in museums, parishes, and other cultural institutions. The documentation, dissemination, and enhancement of such a fragile heritage is today possible by means of technological tools that provide novel means to preserve, analyze, and exploit digital information. In this paper, we present some outcomes of the SILKNOW project, a project that applies computing research to the needs of diverse users (museums, educational institutions, the tourism industry, creativ…
Naturally occurring data in the study of virtual teams in working life – Challenges and opportunities
2014
Previous research on virtual teamwork heavily relies on experiments conducted in laboratory settings, frequently utilizing zero-history university student groups, and drawing conclusions with regard to working life. While such studies can give some preliminary insights into the characteristics of distributed teamwork, they lack a methodological ingredient which is too often neglected in research on human interaction: authenticity. Such findings, consequently, are not easily applicable to what people do in real work life contexts. Earlier pleas to focus more on what is going on outside the laboratory, however, have been widely disregarded. This article takes a stand for including more natura…