DEPTH PERCEPTION IN VIRTUAL PERIPERSONAL SPACE: AN INVESTIGATION OF MOTION PARALLAX ON PERCEPTION- VS ACTION-ESTIMATIONS

The goal of the current experiment was to investigate whether the addition of Motion Parallax will allow participants to make more accurate distance estimations, in both the real and virtual worlds, as well as to determine whether perception- and action-estimations were affected similarly. Due to rising number of COVID-19 cases in 2020, all in-person testing needed to cease with only one participant being tested with the full set of conditions in the final experimental configuration and one participant having been completed the motion parallax conditions only. As a result, the two participants were combined and only the motion parallax conditions were analyzed. Due to low statistical power, no significant main effects, nor significant interactions were discovered. Once the COVID-19 pandemic has subsidised, I am intending to collect data from all twenty-four participants with the full array of conditions in order to complete the current project. An increase in distance-estimation accuracy, especially in virtual reality conditions is still expected to be found

Buckyball Super-polyhedra

The possibility of interlinking buckminsterfullerene molecules via c-bonds to form novel nanostructures is considered. That is, each »node- of such a super-structure is its elf a buckyball. Particular attention is directed to regular polyhedral nanostructures as well as the self-similar truncated icosahedral nanostructure. Asystematic consideration of geometric constraints is presented, and an informative perturbative development of the n-MOs and their eigenspectra is made. A truncated icosahedral construction yields a buckyball buckyball, and iteration of this construction leads toward a buckyball fractal

Decision-Based Marginal Total Variation Diffusion for Impulsive Noise Removal in Color Images

Impulsive noise removal for color images usually employs vector median filter, switching median filter, the total variation L1 method, and variants. These approaches, however, often introduce excessive smoothing and can result in extensive visual feature blurring and thus are suitable only for images with low density noise. A marginal method to reduce impulsive noise is proposed in this paper that overcomes this limitation that is based on the following facts: (i) each channel in a color image is contaminated independently, and contaminative components are independent and identically distributed; (ii) in a natural image the gradients of different components of a pixel are similar to one another. This method divides components into different categories based on different noise characteristics. If an image is corrupted by salt-and-pepper noise, the components are divided into the corrupted and the noise-free components; if the image is corrupted by random-valued impulses, the components are divided into the corrupted, noise-free, and the possibly corrupted components. Components falling into different categories are processed differently. If a component is corrupted, modified total variation diffusion is applied; if it is possibly corrupted, scaled total variation diffusion is applied; otherwise, the component is left unchanged. Simulation results demonstrate its effectiveness

Aromatička svojstva potpunih benzenoidnih ugljikovodika

We consider a family of structurally closely related fully-benzenoid hydrocarbons of increasing number of fused benzene rings. Local and global aromatic properties of such molecules are investigated with a particular interest in investigating the role of the finite size of such molecules in modelling the high-polymer or even graphite. An interesting alternation of local properties for benzene rings in a similar environment was observed.Razmatrana je skupina strukturno vrlo sličnih potpunih benzenoidnih ugljikovodika. Studirana su lokalna i globalna svojstva ovih molekula, a naročita je pažnja posvećena ulozi konačne veličine studiranih molekula u modeliranju benzenoidnih polimera ili čak grafita. Opažena je interesantna pojava da lokalna svojstva benzenskih prstenova alterniraju u sličnom okolišu, iako razlike u veličinama opadaju rastom veličine molekule

The Role of Zn in Chalcopyrite CuFeS2: Enhanced Thermoelectric Properties of Cu1–xZnxFeS2 with In Situ Nanoprecipitates

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/136267/1/aenm201601299_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/136267/2/aenm201601299.pd