255 resultados para networked interactions
em Queensland University of Technology - ePrints Archive
Resumo:
This study investigated the impact of digital networked social interactions on the design of public urban spaces. Urban informatics, social media, ubiquitous computing, and mobile technology offer great potential to urban planning, as tools of communication, community engagement, and placemaking. The study considers the function of public spaces as 'third places,' that is, social places that are familiar, comfortable, social and meaningful for everyday life outside the home and work. Libraries were chosen as the study's focus. The study produced findings and insights at the intersection of urban planning (place), cultural geography and urban sociology (people), and information communication technology (technology) – the triad of urban informatics.
Resumo:
This paper considers an emerging planning practice that uses networked connections to interact with urban places and re-create enlivened cities. The paper presents “urban acupuncture” as a new planning approach that broadens communication and strategically targets interventions across the city. Defined as an approach, which, through the use of digital social networks and interactions, involves citizens and planners in place activations in order to stimulate and reinvigorate place, thus creating meaningful relationships between citizens and their urban settings. This paper uses the UR[BNE] Brisbane Festival 2012 as a qualitative case study of urban acupuncture, best defined as a hyper-localized healing treatment through place activation to enliven and recreate cities. It examines the challenges faced and opportunities embraced by a network of urban professionals. Their aim was to activate the underused urban spaces of central Brisbane through the festival's activities and events. The findings identify the key elements required to design public spaces using socially and technologically networked interactions.
Resumo:
Network Jamming systems provide real-time collaborative performance experiences for novice or inexperienced users. In this paper we will outline the interaction design considerations that have emerged during through evolutionary development cycles of the jam2jam Network Jamming software that employs generative techniques that require particular attention to the human computer relationship. In particular we describe the co-evolution of features and uses, explore the role of agile development methods in supporting this evolution, and show how the provision of a clear core capability can be matched with options for enhanced features support multi-levelled user experience and skill develop.
Resumo:
Networked control over data networks has received increasing attention in recent years. Among many problems in networked control systems (NCSs) is the need to reduce control latency and jitter and to deal with packet dropouts. This paper introduces our recent progress on a queuing communication architecture for real-time NCS applications, and simple strategies for dealing with packet dropouts. Case studies for a middle-scale process or multiple small-scale processes are presented for TCP/IP based real-time NCSs. Variations of network architecture design are modelled, simulated, and analysed for evaluation of control latency and jitter performance. It is shown that a simple bandwidth upgrade or adding hierarchy does not necessarily bring benefits for performance improvement of control latency and jitter. A co-design of network and control is necessary to maximise the real-time control performance of NCSs
Resumo:
We address robust stabilization problem for networked control systems with nonlinear uncertainties and packet losses by modelling such systems as a class of uncertain switched systems. Based on theories on switched Lyapunov functions, we derive the robustly stabilizing conditions for state feedback stabilization and design packet-loss dependent controllers by solving some matrix inequalities. A numerical example and some simulations are worked out to demonstrate the effectiveness of the proposed design method.
Resumo:
In the early 1990's the University of Salford was typical of most pre-1992 Universities in that whilst students provided much of it's income, little attention was paid to pedagogy. As Warren Piper (1994) observed, University teachers were professional in their subject areas but generally did not seek to acquire a pedagogy of HE. This was the case in Alsford. Courses were efficiently run but only a minority of staff were engaged in actively considering learning and teaching issues. Instead staff time was spent on research and commercial activity.----- In the mid-1990's the teaching environment began to change significantly. As well as Dearing, the advent of QAA and teaching quality reviews, Salford was already experiencing changes in the characteristics of its student body. Wideing access was on our agenda before it was so predominant nationally. With increasing numbers and heterogeneity of students as well as these external factors, new challenges were facing the University and teaching domain.----- This paper describes how a culture which values teaching, learning and pedagogic inquiry is being created in the university. It then focuses on parts of this process specific to the Faculty of Business and Informatics, namely the Faculty's Learning and Teaching Research Network and the establishment of the Centre for Construction Education in the School of Construction and Property Management.----- The Faculty of Business and Informatics' Learning and Teaching Research Network aims to raise the profile, quality and volume of pedagogic research across the five schools in the faculty. The initiative is targeted at all academics regardless of previous research experience. We hope to grow and nurture research potential where it exists and to acknowledge and use the existing expertise of subject-based researchers in collaborative ventures. We work on the principle that people are deliged to share what they know but need appreciation and feedback for doing so. A further ain is to surface and celebrate the significant amount of tacit knowledge in the area of pedagogy evidenced by the strength of student and employer feedback in many areas of the faculty's teaching.----- The Faculty embraces generic and core management expertise but also includes applied management disciplines in information systems and construction and property management where internationally leading research activities and networked centres of excellence have been established. Drawing from this experience, and within the context of the Faculty network, a Centre for Construction Education is being established with key international external partners to develop a sustainable business model of an enterprising pedagogic centre that can undertake useful research to underpin teaching in the Faculty whilst offering sustainable business services to allow it to benefit from pump-priming grant funding.----- Internal and external networking are important elements in our plans and ongoing work. Key to this are our links with the LTSN subject centres (BEST and CEBE) and the LTSN generic centre. The paper discusses networking as a concept and gives examples of practices which have proved useful in this context.----- The academic influences on our approach are also examined. Dixon’s (2000) work examining how a range of companies succeed through internal knowledge sharing has provided a range of transferable practices. We also examine the notion of dialogue in this context, defined by Ballantyne (1999) as ‘The interactive human process of reasoning together which comes into being through interactions based on spontaneity or need and is enabled by trust’ Social constructionist principles of Practical Authorship (Shotter, 1993, Pavlica, Holman and Thorpe, 1998)) have also proved useful in developing our perspective on learning and knowledge creation within our community of practice.
Resumo:
The capacity of the internet to handle micro-transactions and to cater to niche markets is a boon for some areas of the creative industries, which have always been associated with smallscale micro business activities. This paper looks at the specific case of the specialist Social Networking Site Ravelry: a site for knitters, crocheters, spinners and dyers. It traces the interactions between amateurs and professionals through the emergence of social networking sites. An analytic framework of social network markets (see Potts, Cunningham, Hartley and Omerod, 2008) is employed to allow for the inclusion of amateur, social, semi-professional,professional and institutional actors within a networked sphere of activity, rather than excluding some of these actors as outside of recognised value-production. The reliance on social networks to determine the economic success of design, production and consumption is exemplified in this small scale example. This paper eschews the dichotomy of commercial and non-commercial by bringing to the fore the hybridity of this site where financial and social economies co-exist.
Resumo:
SEM observations of the aqueous suspensions of kaolinite from Birdwood (South Australia) and Georgia (USA) show noticeable differences in number of physical behaviour which has been explained by different microstructure constitution.. Birdwood kaolinite dispersion gels are observed at very low solid loadings in comparison with Georgia KGa-1 kaolinite dispersions which remain fluid at higher solids loading. To explain this behaviour, the specific particle interactions of Birdwood kaolinite, different from interaction in Georgia kaolinite have been proposed. These interactions may be brought about by the presence of nano-bubbles on clay crystal edges and may force clay particles to aggregate by bubble coalescence. This explains the predominance of stair step edge-edge like (EE) contacts in suspension of Birdwood kaolinite. Such EE linked particles build long strings that form a spacious cell structure. Hydrocarbon contamination of colloidal kaolinite particles and low aspect ratio are discussed as possible explanations of this unusual behaviour of Birdwood kaolinite. In Georgia KGa-1 kaolinite dispersions instead of EE contact between platelets displayed in Birdwood kaolinite, most particles have edge to face (EF) contacts building a cardhouse structure. Such an arrangement is much less voluminous in comparison with the Birdwood kaolinite cellular honeycomb structure observed previously in smectite aqueous suspensions. Such structural characteristics of KGa-1 kaolinite particles enable higher solid volume fractions pulps to form before significantly networked gel consistency is attained.
Resumo:
Purpose: An extended Theory of Planned Behavior (TPB) model tests how customer loyalty intentions may relate to subjective and descriptive norms. The study further determines whether consumption characteristics – product enjoyment and importance – moderate norms-loyalty relationships.----- Methodology: Using a two-study approach focusing on youth, an Australian study (n = 244) first augmented TPB with descriptive norm. A Singapore study (n = 415) followed up with how consumption characteristics might moderate norms-loyalty relationships. With both studies, linear regressions tested the relationships among the variables.----- Findings: Extending TPB with descriptive norm improved TPB’s predictive ability across studies. Further, product enjoyment and importance moderated the norms-loyalty relationships differently. Subjective norm related to loyalty intentions significantly with high enjoyment, whereas descriptive norm was significant with low enjoyment. Only subjective norm was significant with low importance.----- Research limitations: Single-item variables, self-reported questionnaires on intended rather than actual behavior, and not controlling for cultural differences between the two samples limit generalizablity.----- Practical implications: The significance of both norms suggests that mobile firms should reach youth through their peers. With youth, social pressure may be influential particularly with hedonic products. However, the different moderations of product enjoyment and importance imply that a blanket marketing strategy targeting youth may not work.----- Originality/Value: This study extends academic knowledge on the relationships between norms and customer loyalty, particularly with consumption characteristics as moderators. The findings highlight the importance of considering different norms with consumer behavior. The study should help mobile firms understand how social influences impact customer loyalty.