Characterization of Grain Boundaries in Superplastically Deformed Y-TZP Ceramics

The effects of compressive deformation on the grain boundary characteristics of fine-grained Y-TZP have been investigated using surface spectroscopy, impedance analysis, and transmission electron microscopy. After sintering at low temperature (1150°C), the grain boundaries are covered by an ultrathin (1nm) yttrium-rich amorphous film. After deformation at 1200°–1300°C under low stress, some grain boundaries are no longer covered by the amorphous film. Yttrium segregation seems to occur only at wetted grain boundaries. Evidence has been found that the extent of dewetting increases with increasing applied stress

Stakeholder initiatives in flood risk management: exploring the role and impact of bottom-up initiatives in three ‘Room for the River’ projects in the Netherlands

In recent years stakeholder participation has become a popular topic in flood management. Little is known about how and under which circumstances local stakeholders initiate and develop successful flood management strategies and how governmental actors respond to them. Drawing on theories of social movements, stakeholder participation, and citizenship, this paper analyses how local stakeholder initiatives in the Dutch ‘Room for the River’ programme evolve and, in turn, influence such governmental plans and actions. The description and comparative analysis of the three cases leads to three conclusions: first, in all cases, forms of local self-organization play a role, but its impacts are highly dependent on the mix of strategies chosen. Second, forms of coproduction between local stakeholders and government actors are the most viable strategy to realize the positive impact of local initiatives. Third, government agencies tend to react to local initiatives defensively. Much depends on timing and connecting to the right people

Een noodverband tegen hoog water: waterkennis, beleid en politiek rond noodoverloopgebieden

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Grain Size Control of Tetragonal Zirconia Polycrystals Using the Space Charge Concept

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65680/1/j.1151-2916.1990.tb06449.x.pd

The role of dimensionality in neuronal network dynamics

The research leading to these results has received funding from the European Union’s Seventh Framework Programme under grant agreement FP7 ICT 2011 – 284553 (Acronym: Si-CODE), the NEUROSCAFFOLDS Project n. 604263, the National Natural Science Foundation of China (Grant number: 51361130033) and the Ministry of Science and Technology of China (973 Grant number: 2014CB965003)