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Perception of size is assessed by having observers adjust a comparison target at a fixed distance to match the size of a standard located at different distances. Results depend on instructions, target orientation, and available stimulus cues. A mathematical theory assumes that the brain performs an inverse transformation on the proximal information… (More)

Modification of Restle's theory (1970) explains the moon illusion and related phenomena on the basis of three principles: (1) The apparent sizes of objects are their perceived visual angles. (2) The apparent size of the moon is determined by the ratio of the angular extent of the moon relative to the extents subtended by objects composing the surrounding… (More)

The most common explanations of the moon illusion assume that the moon is seen at a specific distance in the sky, which is perceived as a definite surface. A decrease in the apparent distance to the sky with increasing elevation presumably leads to a corresponding decrease in apparent size. In Experiment 1 observers (N = 24) gave magnitude estimates of the… (More)

- Stefan Gerhold, Michele Riva, Zhiming Wang, Roland Bliem, Margareta Wagner, Jacek Osiecki +3 others
- 2015

Nickel oxide (NiO), deposited onto the strontium titanate (SrTiO 3) (110)-(4 × 1) surface, was studied using photoemission spectroscopy (PES), X-ray absorption near edge structure (XANES), and low-energy He + ion scattering (LEIS), as well as scanning tunneling microscopy (STM). The main motivation for studying this system comes from the prominent role it… (More)

- Zhiming Wang, Xianfeng Hao, Stefan Gerhold, Petr Mares, Margareta Wagner, Roland Bliem +4 others
- 2014

Nickel vapor-deposited on the SrTiO 3 (110) surface was studied using scanning tunneling microscopy, photoemission spectroscopy (PES), and density functional theory calculations. This surface forms a (4 × 1) reconstruction, composed of a 2-D titania structure with periodic six-and ten-membered nanopores. Anchored at these nanopores, Ni single adatoms are… (More)

- M Noronha, M Wagner, W Wenzel, J Wirnitzer, N A Dumont, L Gaul
- 2007

A new procedure for calculating eld points with the boundary element method (BEM) is outlined. In the conventional BEM (CBEM) eld points are computed as post{processing by recurrently solving the boundary integral equation with known boundary data for every eld point of interest. This procedure is very time-consuming. On the other hand, newly developed… (More)

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