18 research outputs found

    Parents unwittingly leak their children's data:a GDPR time bomb?

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    There are many apps available for parents that are designed to help them monitor their pregnancy or child’s development. These apps require parents to share information about themselves or their children in order to utilise many of the apps’ features. However, parents remain concerned about their children’s privacy, indicating a privacy paradox between concerns and actions. The research presented here conducted an analysis of parenting apps alongside a survey of parents to determine if their concerns regarding sharing information about their children was at odds with their use of parenting apps.A survey of 75 parents found that they had strong concerns around the availability of information about their children but were using apps within which they shared this information. Parents were not giving consideration to the information requested when using apps. This should be of concern to developers given the growing awareness of users’ rights in relation to managing their data.We propose new guidelines for app developers to better protect children’s privacy and to improve trust relationships between developers and users

    Dependency of the microstructure parameters on the solidification parameters for camphene

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    WOS: 000089379800018Camphene (>95% purity) was unidirectionally solidified in a temperature gradient stage. The microstructure parameters, viz., the primary dendrite arm spacing lambda(1), secondary dendrite arm spacing lambda(2), dendrite tip radius R, and mushy zone depth d, were measured for five different growth rates in a constant temperature gradient G and for five different temperature gradients in a constant growth rate V. The dependency of the microstructure parameters on the solidification parameters (V, G, and GV) for camphene were determined by linear regression analysis. Our results are in good agreement with previous works. (C) 2000 Elsevier Science Ltd. All rights reserved

    Solid-liquid interfacial energy of camphene

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    The Gibbs-Thomson coefficient and the solid-liquid interfacial energy for camphene have been measured to be (8.58 +/- 0.96) x 10(-8) K m and (4.43 +/- 0.49) x 10(-3) J m(-2), respectively, by a direct method. The grain boundary energy of camphene has also been calculated to be (8.36 +/- 0.92) x 10-3 J m(-2) from the observed grain boundary groove shapes. (C) 1999 Elsevier Science S.A. All rights reserved

    Effects of growth rate and temperature gradient on the microstructure parameters in the directionally solidified succinonitrile-7.5 wt.% carbon tetrabromide alloy

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    WOS: 000257095200019Succinonitrile (SCN)-7.5 wt.% carbon tetrabromide (CTB) alloy was unidirectionally solidified with a constant growth rate (V = 33 mu m/s) at five different temperature gradients (G = 4.1-7.6 K/mm) and with a constant temperature gradient (G = 7.6 K/mm) at five different growth rates (V = 7.2-116.7 mu m/s). The primary dendrite arm spacings, secondary dendrite arm spacings, dendrite tip radius and mushy zone depths were measured. Theoretical models for the microstructure parameters have been compared with the experimental observations, and a comparison of our results with the current theoretical models and previous experimental results have also been made. (C) 2007 Elsevier B.V. All rights reserved

    Local Isotropy of the Vorticity Field in a Boundary Layer at High Reynolds Number

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    Modal decomposition of velocity signals in a plane, turbulent wake

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    Effect of solidification processing parameters on the cellular spacings in the Al-0.1 wt% Ti and Al-0.5 wt% Ti alloys

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    WOS: 000247383300020The aim of this work is to investigate the relationship between solidification processing parameters (temperature gradient, G, growth rate, V, and cooling rate T), and cellular spacing, lambda, in the Al-0.1 wt% Ti and Al-0.5 wt% Ti alloys grown at high growth rates. In order to achieve this aim, the specimens were solidified under argon atmosphere and steady-state conditions upward with different temperature gradients, G at a constant growth rate, V and with different V at a constant G for the Al-Ti alloys in the Bridgman type directional solidification apparatus. The cellular spacing,. was measured and expressed as functions of solidification processing parameters, G, V and T by using a linear regression analysis. The results were compared with similar previous experimental work and current theoretical models suggested for cellular growth. (c) 2006 Elsevier B.V. All rights reserved
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