34,697 research outputs found

    A Survey on Handover Management in Mobility Architectures

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    This work presents a comprehensive and structured taxonomy of available techniques for managing the handover process in mobility architectures. Representative works from the existing literature have been divided into appropriate categories, based on their ability to support horizontal handovers, vertical handovers and multihoming. We describe approaches designed to work on the current Internet (i.e. IPv4-based networks), as well as those that have been devised for the "future" Internet (e.g. IPv6-based networks and extensions). Quantitative measures and qualitative indicators are also presented and used to evaluate and compare the examined approaches. This critical review provides some valuable guidelines and suggestions for designing and developing mobility architectures, including some practical expedients (e.g. those required in the current Internet environment), aimed to cope with the presence of NAT/firewalls and to provide support to legacy systems and several communication protocols working at the application layer

    Human experience in the natural and built environment : implications for research policy and practice

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    22nd IAPS conference. Edited book of abstracts. 427 pp. University of Strathclyde, Sheffield and West of Scotland Publication. ISBN: 978-0-94-764988-3

    Assessing mobile mixed reality affordances as a comparative visualization pedagogy for design communication

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    Spatial visualisation skills and interpretation are critical in the design professions but are difficult for novice designers. There is growing evidence that mixed reality visualisation improves learner outcomes, but often these studies are focused on a single media representation and not on a comparison between media and the underpinning learning outcomes. Results from recent studies highlight the use of comparative visualisation pedagogy in design through learner reflective blogs and pilot studies with experts, but these studies are limited by expense and designs familiar to the learner. With increasing interest in mobile pedagogy, more assessment is required in understanding learner interpretation of comparative mobile mixed reality pedagogy. The aim of this study is to do this by evaluating insights from a first-year architectural design classroom through studying the impact and use of a range of mobile comparative visualisation technologies. Using a design-based research methodology and a usability framework for accessing comparative visualisation, this paper will study the complexities of spatial design in the built environment. Outcomes from the study highlight the positives of the approach but also the improvements required in the delivery of the visualisations to improve on the visibility and visual errors caused by the lack of mobile processing

    Approaches for Future Internet architecture design and Quality of Experience (QoE) Control

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    Researching a Future Internet capable of overcoming the current Internet limitations is a strategic investment. In this respect, this paper presents some concepts that can contribute to provide some guidelines to overcome the above-mentioned limitations. In the authors' vision, a key Future Internet target is to allow applications to transparently, efficiently and flexibly exploit the available network resources with the aim to match the users' expectations. Such expectations could be expressed in terms of a properly defined Quality of Experience (QoE). In this respect, this paper provides some approaches for coping with the QoE provision problem

    Comparison the concepts of sense of place and attachment to place in architectural studies

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    Today, concepts such as place attachment, sense of place, meaning of place, place identity, and ... has devoted many studies In literature of architecture and urban design particularly in the field of environmental psychology. It is obvious that in all these concepts, various aspects of interaction between human and place and the impact that places have on people has been presented. This paper defines the concepts of sense of place and place attachment and explains the factors that affect them. Sense of place is a comprehensive concept which in it men feels places, percept them and attached meaning to them. Understanding the fundamental aspects of sense of place, can be effective in assess the level of public attachment to places and tendency of people to places. Place attachment refer to emotional and functional bonds between place and people which Interpreted in different scale from a district to a country in Environmental psychology. In this regard different studies point to varied of spatial and human factors. Review the literature, this paper achieves a comprehensive definition of these concepts and then it try to compare them to find their relationship. What will come eventually is that place attachment is one of the sense of place subsets. Thus in encounter of people and place if assume people sense of place a general feeling to that place, place attachment is a positive emotion which people have about the place

    Specific resources as bases for the differentiation and innovation of tourist destinations

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    Given that one type of tourist does not exist and different strategies are drawn to reach the wished "extraordinary" by tourists for holidays, there are windows of opportunities to the tourist destinations, as these give them the chance for differentiated offers and for a flexibility that opposes uniformity and gives place to variety and difference. Assuming that the development of the destinations do not obey to just a standard way, and alternatively is embedded in the historical, cultural, institutional and natural matrices of the regions where destinations are anchored, then the specific resources of a place can assume the basic role of inputs for the differentiation of the tourist destination and for the diversification of its tourist offers. Taking into account the exceptionality of tourist product as an experience, which is associated with an integrated experience offer, one can say that an idiographic perspective of a destination requires that the valuation of its specific resources pass not only for the tourist services providers to assume themselves as agents who facilitate the stay and the mobility of the tourists, but also that they need to become ambassadors of all the kind of services of the destination as well as of the region itself. Such tourist destination generates change. As it generates differentiated strategies at the regional level and as it is based on co-operation and network, these strategies and related facts make the environment propitious to the dissemination of knowledge and innovation. Innovation, in turn, generates difference, that strengthens the identity of the region, and potentially, of the tourist destination. Such strategies of differentiation, in a sustainable development frame, can be the turning point for a more selective tourist industry, and where all can win: the local communities, the tourists, the tourist agents, and the environment.Specific resources; idiographic approach; innovation; tourist destination; sustainability; regional development

    The enhancement of knowledge, preservation and valorisation of historical settlements in the alpine area: an interdisciplinary approach

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    The paper aims to present the methodological approach used for the development of the Interreg IIIB Alpine Space project “Cultur ALP - Knowledge and Enhancement of Historical Centres and Cultural Landscape”. The project promoted by Lombardy Region, involves seven European regions from four different countries. The goal is to improve the knowledge of alpine historical settlements and to develop innovative operating policies to protect and enhance this distinctive cultural heritage. The paper will focus on the SWOT analysis methodology, here applied to cultural heritage and aiming to describe, understand and valorise the peculiarities and the values of historical settlements and cultural landscapes in the alpine territory. SWOT analysis indicators have been selected in order to internalise the interdisciplinary approach chosen in the project. The intervention strategy that normally characterises the government and management of historic settlements is sectoral and looks at the settlement itself as an ensemble of valuable buildings to be preserved from depletion. Here this point of view is overtaken in favour of a “systemic” analysis, where historical settlements can be viewed as cultural capital, closely integrated to all the other territorial resources. This to achieve a sustainable and durable territorial development, based on the preservation and valorisation of cultural, historical, artistic, social, economic and environmental identities, according to the peculiar spatial and socio-economic context of the Alps arch. This implies the contribution of different disciplinary approaches and tool boxes, that have to be understood and shared by different knowledge systems (approach, strategies, methodologies, tools…). The real challenge of the project is therefore the use of the interdisciplinary approach in developing integrated policies for the preservation and valorisation of historical settlements and cultural landscapes, pushing architects and historians of art as well as planners, economists, sociologists, administrative professionals and other territorial analysts to work together in a mutual learning process.

    Megastructures: a great-size solution for affordable housing. The case study of Rome

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    During the 70’s and 80’s, affordable housing production in Europe faced the huge emergency caused by rising urbanization. In suburban areas of European main cities, megastructures appeared, drawing visible marks in urban fabric. Megastructures were planned to synthesize residential functions and all existing services of traditional city in unique buildings. Nowadays, these buildings are affected by bad physical conditions and they are no longer able to satisfy the needs of the contemporary demand. The proposed paper investigates the genesis of housing megastructures with particular regards to the Italian case and council housing districts realized in Rome within the 1st public plan for council and affordable housing (1964), an original plan for the settlement of 700,000 inhabitants. A focus will be proposed concerning the differences between megastructures and traditional big buildings and the main connections between the spread of great-size buildings and the industrialization and automatization of construction techniques. An insight about possible future regenerations intervention is suggested
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