An ICT-Enabled Approach to Optimising the Reliability of Manual Ultrasonic Non-Destructive Testing

Manual Ultrasonic Testing (MUT) is the most cost effective NDT method for the in-situ inspection of aerospace structures, in particular composite structures. However, its defect detection reliability is low. Manual Ultrasonic Testing (MUT) reports may vary depending on the operator conducting the test. Its reliability is therefore greatly influenced by human factors. Nonetheless, MUT continues to play a key role in the NDT suite of techniques. Despite its simplicity, it often meets the required performance at a reduced cost. No mechanised system exists which is as dextrous as the human hand for moving a probe over complex shapes while also dynamically skewing the probe to achieve the maximum amplitude from a reflector. It is therefore worth looking at ways to improve the reliability of MUT

Children’s rights and digital technologies

Digital technologies have reshaped children’s lives, resulting in new opportunities for and risks to their well-being and rights. This chapter investigates the impact of digital technologies on children’s rights through the lens of the United Nations Convention on the Rights of the Child. Up until now, not all rights have received the same level of attention in the digital context. Legal and policy discourse in the area of children and digital media predominantly focuses on ‘protection’ rights, albeit with a growing awareness of the tension between ‘protection’ and ‘participation’ rights. ‘Provision’ rights are not often emphasised, other than in the important domain of education. However, all children’s rights should be supported, valued and developed in both online and offline spheres of engagement. Governments, parents, educators, industry, civil society and children’s rights commissioners or ombudspersons should all take up their responsibility to enhance children’s rights in relation to digital technologies, while actively listening and taking account of children’s views when developing laws, policies, programmes and other measures in this field

Comparing proxy and model estimates of hydroclimate variability and change over the Common Era

Water availability is fundamental to societies and ecosystems, but our understanding of variations in hydroclimate (including extreme events, flooding, and decadal periods of drought) is limited because of a paucity of modern instrumental observations that are distributed unevenly across the globe and only span parts of the 20th and 21st centuries. Such data coverage is insufficient for characterizing hydroclimate and its associated dynamics because of its multidecadal to centennial variability and highly regionalized spatial signature. High-resolution (seasonal to decadal) hydroclimatic proxies that span all or parts of the Common Era (CE) and paleoclimate simulations from climate models are therefore important tools for augmenting our understanding of hydroclimate variability. In particular, the comparison of the two sources of information is critical for addressing the uncertainties and limitations of both while enriching each of their interpretations. We review the principal proxy data available for hydroclimatic reconstructions over the CE and highlight the contemporary understanding of how these proxies are interpreted as hydroclimate indicators. We also review the available last-millennium simulations from fully coupled climate models and discuss several outstanding challenges associated with simulating hydroclimate variability and change over the CE. A specific review of simulated hydroclimatic changes forced by volcanic events is provided, as is a discussion of expected improvements in estimated radiative forcings, models, and their implementation in the future. Our review of hydroclimatic proxies and last-millennium model simulations is used as the basis for articulating a variety of considerations and best practices for how to perform proxy–model comparisons of CE hydroclimate. This discussion provides a framework for how best to evaluate hydroclimate variability and its associated dynamics using these comparisons and how they can better inform interpretations of both proxy data and model simulations. We subsequently explore means of using proxy–model comparisons to better constrain and characterize future hydroclimate risks. This is explored specifically in the context of several examples that demonstrate how proxy–model comparisons can be used to quantitatively constrain future hydroclimatic risks as estimated from climate model projections

The institutional framework for doing sports business: principles of EU competition policy in sports markets

The competition rules and policy framework of the European Union represents an important institutional restriction for doing sports business. Driven by the courts, the 2007 overhaul of the approach and methodology has increased the scope of competition policy towards sports associations and clubs. Nowadays, virtually all activities of sports associations that govern and organize a sports discipline with business elements are subject to antitrust rules. This includes genuine sporting rules that are essential for a league, championship or tournament to come into existence. Of course, 'real' business or commercial activities like ticket selling, marketing of broadcasting rights, etc. also have to comply with competition rules. Regulatory activities of sports associations comply with European competition rules if they pursuit a legitimate objective, its restrictive effects are inherent to that objective and proportionate to it. This new approach offers important orientation for the strategy choice of sports associations, clubs and related enterprises. Since this assessment is done following a case-by-case approach, however, neither a blacklist of anticompetitive nor a whitelist of procompetitive sporting rules can be derived. Instead, conclusions can be drawn only from the existing case decisions - but, unfortunately, this leaves many aspects open. With respect to business activities, the focus of European competition policy is on centralized marketing arrangements bundling media rights. These constitute cartels and are viewed to be anticompetitive in nature. However, they may be exempted from the cartel prohibition on efficiency and consumer benefits considerations. Here, a detailed list of conditions exists that centralized marketing arrangements must comply with in order to be legal. Although this policy seems to be well-developed at first sight, a closer look at the decision practice reveals several open problems. Other areas of the buying and selling behavior of sports associations and related enterprises are considerably less well-developed and do not provide much orientation for business

Soil moisture modeling in agricultural micro catchment

The aim of work was comparison of two water balance models with different degree of complexity to predict soil moisture in small hilly loess catchment and to compare results of the modeling with field measurement done with TOR probes. In the first "bucket" model soil is treated as a tank for water with definite capacity, in the second more sophisticatcd model elaborated in the FEFLOW software, soil properties are described by retention curve and soil moisture pattern is obtained as a solution of Richards equation. In both models actual evapotranspiration is modeled by FAO56 method. The results obtained from both models were acceptable with similar determination coefficient of about 0,8. However, simulation of soil moisture with the FEFLOW model is more accurate although it requires more parameters and seeking for stable numerical solution. On the other hand it is also more suitable to use in hilly terrain where horizontal soil water fluxes must be taken into account