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    Experimental evaluation of new pipe sleeve with weep holes for concrete leakage prevention

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    Mortar is a layer with high water absorption rate over concrete due to its porous structure. The mortar layer that frequently exposed to water or moisture is more likely to contain moisture in its layer. The example of area that is mostly exposed to water is the bathroom. The water infiltrated and trapped in the mortar slab in the bathroom will eventually increase the moisture content of the mortar slab and will raise many problems such as the deterioration of the building structure surface. Therefore, this study has been carried out to produce a technology to remove the trapped water in the mortar slab and to reduce the moisture content in the mortar layer. The infiltration rate of the water into the mortar slabs installed with the conventional pipe sleeve (T1), the circular weep-holes pipe sleeve (T2), the vertical weep-holes pipe sleeve (T3) and the inclined weep-holes pipe sleeve (T4) have been measured and the results show that T4 has recorded the highest reading of 7.74 ml/min compared to other pipe sleeves. Besides that, T4 has also recorded the highest water flow rate out of the mortar with 1.31 ml/min and recorded the lowest moisture content of 10.1%. Inclined weep-holes pipe sleeve was proven able to work better than other designs. Therefore, the New Pipe Sleeve (NPS) performance with inclined weep-holes designs are studied in depth by changing the weep-holes angles to 15°, 30°, 45°, 60° and 75° and weep-holes surface area of 6%, 8% and 10%. As a result, the weep-holes angle of 60° with 10% weep-holes surface area has recorded the highest water infiltration rate and water flow rate out of the mortar with 20.898 ml/min and 3.764 ml/min, respectively, obtaining the highest reduction of the moisture content by 3.1%. The optimum performance of the pipe sleeve with inclined weep-holes design has been proposed by using Design Expert Software and the optimum performance can be achieved with the used of the weep-holes angle of 69.55° and 10% weep-holes surface area, producing water infiltration rate of 20.4513 ml/min and water flow rate out of the mortar of 3.3795 ml/min. Therefore, application of optimise design of weep-holes has promising potential method to reduce leakage and fungi problem that normally occurred in bathroom area

    Electronic Security Implications of NEC: A Tactical Battlefield Scenario

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    In [1] three principal themes are identified by the UK MoD (Ministry of Defence) in order to deliver the vision of NEC (Network Enabled Capability): Networks, People and Information. It is the security of information, which is discussed in this article. The drive towards NEC is due to many factors; one defining factor is to provide an increase in operational tempo in effect placing one ahead of their enemy in terms of acting within their OODA (Observe, Orient, Decide, Act) loop. However as technical and procedural systems are being advanced to achieve the vision of NEC, what impact does this have on the traditional information security triangle, of preserving the confidentiality, integrity and availability of information? And how does this influence current security engineering and accreditation practices, particularly in light of the proliferation problem? This article describes research conducted into answering these questions, building upon the findings of the NITEworks® [2] ISTAR (Intelligence, Surveillance, Target Acquisition and Reconnaissance) Theme studies and focusing on a tactical battlefield scenario. This scenario relates to the IFPA (Indirect Fire Precision Attack) [3] project where the efficient synchronisation of potentially numerous sources of information is required, providing real-time decisions and delivery of effects, in accordance with the requirements of NEC. It is envisaged that the IFPA systems will consist of numerous sub-systems each of which will provide a unique effecting capability to the UK army with differing levels of speed, accuracy and range

    "Involving Interface": An Extended Mind Theoretical Approach to Roboethics

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    In 2008 the authors held Involving Interface, a lively interdisciplinary event focusing on issues of biological, sociocultural, and technological interfacing (see Acknowledgments). Inspired by discussions at this event, in this article, we further discuss the value of input from neuroscience for developing robots and machine interfaces, and the value of philosophy, the humanities, and the arts for identifying persistent links between human interfacing and broader ethical concerns. The importance of ongoing interdisciplinary debate and public communication on scientific and technical advances is also highlighted. Throughout, the authors explore the implications of the extended mind hypothesis for notions of moral accountability and robotics

    Rethinking affordance

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    n/a – Critical survey essay retheorising the concept of 'affordance' in digital media context. Lead article in a special issue on the topic, co-edited by the authors for the journal Media Theory

    Lost Oscillations: Exploring a City’s Space and Time With an Interactive Auditory Art Installation

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    Presented at the 22nd International Conference on Auditory Display (ICAD-2016)Lost Oscillations is a spatio-temporal sound art installation that allows users to explore the past and present of a city's soundscape. Participants are positioned in the center of an octophonic speaker array; situated in the middle of the array is a touch-sensitive user interface. The user interface is a stylized representation of a map of Christchurch, New Zealand, with electrodes placed throughout the map. Upon touching an electrode, one of many sound recordings made at the electrode's real-world location is chosen and played; users must stay in contact with the electrodes in order for the sounds to continue playing, requiring commitment from users in order to explore the soundscape. The sound recordings have been chosen to represent Christchurch's development throughout its history, allowing participants to explore the evolution of the city from the early 20th Century through to its post-earthquake reconstruction. This paper discusses the motivations for Lost Oscillations before presenting the installation's design, development, and presentation

    ‘In the game’? Embodied subjectivity in gaming environments

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    Human-computer interactions are increasingly using more (or all) of the body as a control device. We identify a convergence between everyday bodily actions and activity within digital environments, and a trend towards incorporating natural or mimetic form of movement into gaming devices. We go on to reflect on the nature of player ‘embodiment’ in digital gaming environments by applying insights from the phenomenology of Maurice Merleau-Ponty. Three conditions for digital embodiment are proposed, with implications for Calleja’s (2011) Player Involvement Model (PIM) of gaming discussed
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