Job crafting in schools for special education: A qualitative analysis [Job crafting in het speciaal onderwijs: Een kwalitatieve analyse]

In this article we discuss the design and qualitative (process) evaluation of a job crafting intervention among employees at three Dutch schools for special education. In a period of 1.5 months, fifty employees participated in a group-based training intervention that addressed individual's job crafting activities aimed at improving individual's...

Production and measurement of superpolished surfaces

The influence of polishing time on the roughness of ultrasmooth bowl-feed-polished surfaces is studied. A large improvement of the surface quality is obtained within the first 10 minutes, but increasing the polishing time from 10 to 60 minutes did not yield a significant difference. A Linnik interference miscroscope, adapted for phase-shifting...

Optical profiler for low-reflectance ultrasmooth surfaces

Design considerations are discussed for an optical profiler consisting of an interference microscope adapted for phase shifting interferometry. The influence of several errors on the accuracy of the profiler are estimated. Specific attention is paid to the case of low-reflectance surfaces, which have to be measured with extremely high precision ...

Linear approximation for measurement errors in phase shifting interferometry

This paper shows how measurement errors in phase shifting interferometry (PSI) can be described to a high degree of accuracy in a linear approximation. System error sources considered here are light source instability, imperfect reference phase shifting, mechanical vibrations, nonlinearity of the detector, and quantization of the detector signal...