Haptic parallelity perception on the frontoparallel plane: The involvement of reference frames

Robert Volcic; Astrid M. L. Kappers; Jan J. Koenderink

doi:10.3758/bf03193749

Revisiting the Space-Time Metaphoric Association: Does the Movement of Spatial Reference Frames Matter?

PsycEXTRA Dataset ◽

10.1037/e528942014-364 ◽

2014 ◽

Author(s):

Jiushu Xie ◽

Yanli Huang ◽

Chi-Shing Tse ◽

Wing-Chee So

Keyword(s):

Reference Frames ◽

Space Time ◽

Spatial Reference ◽

Spatial Reference Frames

Perceptual organization within dynamic reference frames

PsycEXTRA Dataset ◽

10.1037/e537102012-404 ◽

2001 ◽

Author(s):

Joseph S. Lappin ◽

Duje Tadin ◽

Emily Grossman

Keyword(s):

Perceptual Organization ◽

Reference Frames

Inhibition at the leading edge: Reference frames for dynamic IOR

PsycEXTRA Dataset ◽

10.1037/e536982012-423 ◽

1997 ◽

Author(s):

Larence Becker ◽

Howard Egeth

Keyword(s):

Reference Frames ◽

Leading Edge

Supplemental Material for Modality-Switching in the Simon Task: The Clash of Reference Frames

Journal of Experimental Psychology General ◽

10.1037/xge0000342.supp ◽

2017 ◽

Keyword(s):

Reference Frames ◽

Simon Task ◽

Modality Switching

Supplemental Material for Structural Representations of Fingers Rely on Both Anatomical and Spatial Reference Frames

Journal of Experimental Psychology Human Perception & Performance ◽

10.1037/xhp0000715.supp ◽

2020 ◽

Keyword(s):

Reference Frames ◽

Spatial Reference ◽

Spatial Reference Frames

Equivalence of Phase Estimations in Quasi-Synchronous and Stationary Reference Frames in Sensorless Drive of PMSMs

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.130.1195 ◽

2010 ◽

Vol 130 (10) ◽

pp. 1195-1196

Author(s):

Shinji Shinnaka

Keyword(s):

Reference Frames ◽

Sensorless Drive

Faculty Opinions recommendation of Interaction of egocentric and world-centered reference frames in the rat posterior parietal cortex.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.718354176.793501745 ◽

2014 ◽

Author(s):

Hugo Spiers

Keyword(s):

Parietal Cortex ◽

Posterior Parietal Cortex ◽

Reference Frames ◽

Posterior Parietal

Reference Frames in Vision

10.21236/ada248743 ◽

1992 ◽

Author(s):

Mary M. Hayhoe

Keyword(s):

Reference Frames

Allocentric to Egocentric Spatial Switching: Impairment in aMCI and Alzheimer's Disease Patients?

Current Alzheimer Research ◽

10.2174/1567205014666171030114821 ◽

2018 ◽

Vol 15 (3) ◽

pp. 229-236 ◽

Cited By ~ 8

Author(s):

Gennaro Ruggiero ◽

Alessandro Iavarone ◽

Tina Iachini

Keyword(s):

Alzheimer’S Disease ◽

Alzheimer's Disease ◽

Reference Frame ◽

Reference Frames ◽

Memory Task ◽

Spatial Representations ◽

The Novel ◽

Spatial Memory Task ◽

Switching Condition ◽

Normal Controls

Objective: Deficits in egocentric (subject-to-object) and allocentric (object-to-object) spatial representations, with a mainly allocentric impairment, characterize the first stages of the Alzheimer's disease (AD). Methods: To identify early cognitive signs of AD conversion, some studies focused on amnestic-Mild Cognitive Impairment (aMCI) by reporting alterations in both reference frames, especially the allocentric ones. However, spatial environments in which we move need the cooperation of both reference frames. Such cooperating processes imply that we constantly switch from allocentric to egocentric frames and vice versa. This raises the question of whether alterations of switching abilities might also characterize an early cognitive marker of AD, potentially suitable to detect the conversion from aMCI to dementia. Here, we compared AD and aMCI patients with Normal Controls (NC) on the Ego-Allo- Switching spatial memory task. The task assessed the capacity to use switching (Ego-Allo, Allo-Ego) and non-switching (Ego-Ego, Allo-Allo) verbal judgments about relative distances between memorized stimuli. Results: The novel finding of this study is the neat impairment shown by aMCI and AD in switching from allocentric to egocentric reference frames. Interestingly, in aMCI when the first reference frame was egocentric, the allocentric deficit appeared attenuated. Conclusion: This led us to conclude that allocentric deficits are not always clinically detectable in aMCI since the impairments could be masked when the first reference frame was body-centred. Alongside, AD and aMCI also revealed allocentric deficits in the non-switching condition. These findings suggest that switching alterations would emerge from impairments in hippocampal and posteromedial areas and from concurrent dysregulations in the locus coeruleus-noradrenaline system or pre-frontal cortex.

Radial Turbine Design for Solar Chimney Power Plants

Energies ◽

10.3390/en14030674 ◽

2021 ◽

Vol 14 (3) ◽

pp. 674

Author(s):

Paul Caicedo ◽

David Wood ◽

Craig Johansen

Keyword(s):

Power Plants ◽

Reference Frames ◽

Three Dimensional ◽

Discrete Ordinates ◽

Large Area ◽

Solar Chimney ◽

Cfd Simulations ◽

Radial Turbine ◽

Design Changes ◽

Turbine Design

Solar chimney power plants (SCPPs) collect air heated over a large area on the ground and exhaust it through a turbine or turbines located near the base of a tall chimney to produce renewable electricity. SCPP design in practice is likely to be specific to the site and of variable size, both of which require a purpose-built turbine. If SCPP turbines cannot be mass produced, unlike wind turbines, for example, they should be as cheap as possible to manufacture as their design changes. It is argued that a radial inflow turbine with blades made from metal sheets, or similar material, is likely to achieve this objective. This turbine type has not previously been considered for SCPPs. This article presents the design of a radial turbine to be placed hypothetically at the bottom of the Manzanares SCPP, the only large prototype to be built. Three-dimensional computational fluid dynamics (CFD) simulations were used to assess the turbine’s performance when installed in the SCPP. Multiple reference frames with the renormalization group k-ε turbulence model, and a discrete ordinates non-gray radiation model were used in the CFD simulations. Three radial turbines were designed and simulated. The largest power output was 77.7 kW at a shaft speed of 15 rpm for a solar radiation of 850 W/m2 which exceeds by more than 40 kW the original axial turbine used in Manzanares. Further, the efficiency of this turbine matches the highest efficiency of competing turbine designs in the literature.