Tallinn University of Technology

About: Tallinn University of Technology is a education organization based out in Tallinn, Estonia. It is known for research contribution in the topics: European union & Computer science. The organization has 3688 authors who have published 10313 publications receiving 145058 citations. The organization is also known as: Tallinn Technical University & Tallinna Tehnikaülikool.

Analysis of short fibres orientation in steel fibre-reinforced concrete (SFRC) by X-ray tomography

Abstract: The mechanical properties of fibre composite materials are largely determined by the orientation of fibres within the matrix. Which orientation distribution short fibres follow in different parts of a structural element is still a subject for research and discussions in the scientific community. In this article, we present a modern and advanced method for measuring the orientation of short fibres in steel fibre-reinforced concrete (SFRC) by X-ray microtomography. With this method, a voxel image of the fibres is obtained directly in 3D, and the orientation of each individual fibre is calculated based on a skeletonized representation of this image. Scans of 12 SFRC samples, taken from the central height region of real-size floor slabs, reveal the fibres to be mostly horizontally oriented near the centre of a floor slab and more vertically oriented near the edge; here the alignment with the formwork dominates. The fibre orientation distributions are characterized by several orientation parameters as quantitative measures for the alignment. On the practical side, this method has the potential to be incorporated into the development and production process of SFRC structures to verify how the fibres contribute to capacity.

Reforms and Economic Growth in Transition Economies: Complementarity, Sequencing and Speed

Abstract: This paper considers the effects of sequencing and reform speed on output performance in transition countries. These largely unsettled issues are addressed using principal component techniques to construct reform clusters and by explicit tests of speed effects. The results indicate that broad-based reforms are good for output growth, but so is a policy of liberalisation and small-scale privatisation without structural reforms. Conversely, large-scale privatisation without adjoining reforms, market opening without supporting reforms and bank liberalisation without enterprise restructuring affect growth negatively. Swift reform policies allow transition countries to benefit from higher growth for longer time. The speed of reforms appears otherwise to have little effect on growth in the short and medium term.

Nationwide citizen access to their health data: analysing and comparing experiences in Denmark, Estonia and Australia.

Abstract: Most countries face an ageing population, increasing chronic diseased, and constrictions on budget for providing health services. Involving patients in their own care by allowing them access to their patient data is a trend seen in many places. Data on the type and level of access citizens have to their own health data in three countries was gathered from public sources. Data from each individual country is presented and the experiences of Denmark, Estonia and Australia are examined whilst similarities and differences explored. The discussion adopts a citizen-centred perspective to consider how the different e-portal systems support, protect and structure citizen interactions with their own health data in three key areas: Security, privacy and data protection; User support; and Citizen adoption and use. The paper highlights the impact of opt-in/opt-out approaches on citizen access and the lack of a structured approach to addressing differences in citizen health and e-health literacy. This research also confirms while current data provides detail on the availability and use of personal health data by citizens, questions still remain over the ultimate impact on patient outcomes of these initiatives. It is anticipated the insights generated from the three countries experiences, supporting citizen access to their health data will be useful to improve these initiatives and guide other countries aspiring to support similar initiatives.

First-Time versus Repeat Tourism Customer Engagement, Experience, and Value Cocreation: An Empirical Investigation:

Abstract: Though customer engagement (CE) and customer experience (CX) are recognized as key research priorities, empirically derived insight into their association with tourism customers’ ensuing value cocr...