See What You Feel: A Crossmodal Tool for Measuring Haptic Size Illusions

The purpose of this research is to present the employment of a simple-to-use crossmodal method for measuring haptic size illusions. The method, that we call See what you feel, was tested by employing Uznadze’s classic haptic aftereffect in which two spheres physically identical (test spheres) appear different in size after that the hands holding them underwent an adaptation session with other two spheres (adapting spheres), one bigger and the other smaller than the two test spheres. To measure the entity of the illusion, a three-dimensional visual scale was created and participants were asked to find on it the spheres that corresponded in size to the spheres they were holding in their hands out of sight. The method, tested on 160 right-handed participants, is robust and easily understood by participants

3D-Printed Stationary Phases with Ordered Morphology: State of the Art and Future Development in Liquid Chromatography Chromatographia

Stationary phases with precisely ordered morphology have the potential to drastically 9 improve the performance of chromatographic operations, both in the analytical and in the 10 preparative/industrial fields. The recent wave of additive manufacturing, aka 3D printing, 11 gives the unprecedented ability to fabricate such stationary phases and to experimentally 12 prove theoretical principles of ordered chromatographic beds. The manufacture of highly 13 efficient chromatographic columns is becoming a reality as 3D printers become more 14 affordable and accessible, and their resolution, speed and material flexibility continue to 15 grow. This brings fresh ideas to the design of chromatographic beds, moving away from 16 stereotypical “packed” beds with spherical particles to bespoke monolithic structures to suit 17 a range of specific applications. This review aims to cover the state of the art of ordered 18 beds for liquid chromatography applications, drawing analogies between the well-19 established pillar-array columns in two-dimensions to their three-dimensional counterparts. 20 The potential use of 3D printing to create entirely new column formats and cartridge 21 designs such as microchip columns will also be discussed. Finally, key opportunities and 22 challenges which remain in the field of 3D-printed chromatography are summarised, with 23 the hope that 3D printed chromatographic columns will soon become the standard

Illusory lightness in the Delboeuf Figure

A white disk presented inside a small concentric circle (a display like Delboeuf figure) looks lighter than when inside a larger one. The magnitude of the effect was measured with 20 observers (10 women, 10 men; ages 19 to 26 years). The decrements in luminance of the disk inside the smaller circle, in order to match the lightness of the disk inside the larger circle, are reported for three different grey backgrounds and correspond to 9.13%, 10.33% and 10.46%

Temperature effect on stress-strain properties of dispersion-hardened crystalline materials with incoherent nanoparticles

In this paper, the mathematical simulation is used to study the effect from the size of incoherent nanoparticles on thermal strength of heterophase aluminum alloy in materials with the equal volume fraction of the strengthening phase. It is shown that during the deformation process, prismatic dislocation loops and dislocation dipoles contribute to the dislocation density. It is found that the behavior of the flow stress curves of materials with the equal volume fraction of strengthening particles depends on a combination of scale parameters of the strengthening phase at various deformation temperatures. The areas of strong and weak temperature dependence of the flow stress are identified

Lightness effects in Delboeuf and Ebbinghaus size-contrast illusions

We examined lightness effects observed in Delboeuf and Ebbinghaus size-contrast illusions. Results of four experiments are reported. Experiment 1 was conducted with Delboeuf- like stimuli and shows that the disk that appears bigger appears either lighter or darker than the disk that appears smaller, depending on the contrast polarity between disks and background. Experiment 2 shows that the direction of these lightness effects is not influenced by the lumi- nance of the size-contrast inducers. Experiment 3 shows that a similar lightness effect is also observed in modified Ebbinghaus size-contrast displays. Experiment 4 tested the presence of the size-contrast illusion in the stimuli used in experiments 2 and 3