Duurzaamheid speelt grote rol bij besluitvorming: Renoveren of verhuizen?

Waarom besluit een deel van de kantoorgebruikers bij een discrepantie tussen vraag en aanbod tot ingrijpende renovatie en verhuizen andere gebruikers naar een bestaand of nieuw gebouw? Dit artikel bespreekt de belangrijkste push- en pullfactoren die bij zo’n beslissing komen kijken. Opvallend is dat duurzaamheid in toenemende mate een rol speelt...

Instrument for measuring a diffraction pattern of a specimen

Coherence approach in neutron, x-ray, and neutron spin-echo reflectometry

Based on the application of coherence theory to neutron scattering a description is given of the propagation of neutrons or x-rays through a reflectometer. Important coherence effects at the sample position are discussed. Further, an outline is given how to determine the measured count rate in a detector on the basis of this method including...

Positron depth profiling of the structural and electronic structure transformations of hydrogenated Mg-based thin films

We report positron depth-profiling studies on the hydrogen sorption behavior and phase evolution of Mg-based thin films. We show that the main changes in the depth profiles resulting from the hydrogenation to the respective metal hydrides are related to a clear broadening in the observed electron momentum densities in both Mg and Mg2Ni films....

Transformation of polycrystalline tungsten to monocrystalline tungsten W(100) and its potential application in Schottky emitters

The electron sources in electron microscopes and electron lithography machines often consist of small diameter W(100) wires, etched to form a sharp tip. The electron emission is facilitated by the Schottky effect, thus the name Schottky emitter. The authors are investigating the feasibility of arrays of such electron emitters for the use in...

Properties and microstructure of ultrathin (La,Ca)MnO3 films under different conditions of strain

Natuurpark "de Maashorst": Landschapsplan voor de ontwikkeling van natuurschoon en recreatie