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Relevant bibliographies by topics / Rotation figures

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Academic literature on the topic 'Rotation figures'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Rotation figures"

1

Lee, Seungeun, and Jaehoon Yim. "Students’ Understanding of Figures with Point Symmetry and Its Educational Implications." Korean Society of Educational Studies in Mathematics - Journal of Educational Research in Mathematics 33, no. 2 (2023): 245–65. http://dx.doi.org/10.29275/jerm.2023.33.2.245.

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This paper examines students’ thoughts and the difficulties faced while learning figures with point symmetry. This study was conducted with a class of 5th grade students. We identified the difficulties encountered by them as: confusing the center of a figure with the center of rotation, confusing rotating a figure 180° with moving a figure in the opposite direction, difficulty in specifying and explaining the amount of rotation, tendency to use the property of corresponding sides instead of the property of corresponding points when completing a figure with point symmetry, and difficulty in dea

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Khooshabeh, Peter, Mary Hegarty, and Thomas F. Shipley. "Individual Differences in Mental Rotation." Experimental Psychology 60, no. 3 (2013): 164–71. http://dx.doi.org/10.1027/1618-3169/a000184.

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Two experiments tested the hypothesis that imagery ability and figural complexity interact to affect the choice of mental rotation strategies. Participants performed the Shepard and Metzler (1971) mental rotation task. On half of the trials, the 3-D figures were manipulated to create “fragmented” figures, with some cubes missing. Good imagers were less accurate and had longer response times on fragmented figures than on complete figures. Poor imagers performed similarly on fragmented and complete figures. These results suggest that good imagers use holistic mental rotation strategies by defaul

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Сальков, Николай, and Nikolay Sal'kov. "Formation of Surfaces Under Kinetic Displaying." Geometry & Graphics 6, no. 1 (2018): 20–33. http://dx.doi.org/10.12737/article_5ad094a0380725.32164760.

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This work is the development of previously published ones in the journal "Geometry and Graphics" as follows: "Kinematic Correspondence of Rotating Spaces" (№ 1, 2013) and "Formation of Cyclic Surfaces in Kinetic Geometry" (№ 4, 2017). Many of mechanisms make rotational movement, wherein rotating parts of one mechanism "invade" into the zone of rotation for another rotating mechanism’s parts. At the same time, in addition to rotation, they can make other movements, both translational and rotational nature. The theory of kinetic geometry, of which this work is an integral part, is developed in o

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Rahe, Martina, Matthias Weigelt, and Petra Jansen. "Mental rotation with colored cube figures." Consciousness and Cognition 102 (July 2022): 103350. http://dx.doi.org/10.1016/j.concog.2022.103350.

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Kanbe, Fumio. "Mental rotation of random lined figures." Japanese Psychological Research 43, no. 3 (2001): 141–47. http://dx.doi.org/10.1111/1468-5884.00170.

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Battista, Christian, and Michael Peters. "Ecological Aspects of Mental Rotation Around the Vertical and Horizontal Axis." Journal of Individual Differences 31, no. 2 (2010): 110–13. http://dx.doi.org/10.1027/1614-0001/a000020.

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Rotation of both natural and man-made objects most commonly requires rotation around the vertical rather than the horizontal axis because it is relatively rare that we need to rotate, e.g., trees, mountains, chairs or vehicles around their horizontal axis in order to match images to their canonical orientation. Waszak, Drewing, and Mausfeld (2005) demonstrated the importance of a gravitationally defined vertical axis and the visual context within which objects occur, when performing mental rotations. We extended their findings in a between-subject design by asking 406 subjects to rotate wirefr

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Doyle, Randi A., and Daniel Voyer. "Photographs of real human figures: Item types and persistent sex differences in mental rotation." Quarterly Journal of Experimental Psychology 71, no. 11 (2018): 2411–20. http://dx.doi.org/10.1177/1747021817742079.

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The goal of the current study was to provide a better understanding of the role of image familiarity, embodied cognition, and cognitive strategies on sex differences in performance when rotating blocks and photographs of real human bodies. Two new Mental Rotation Tests (MRTs) were created: one using photographs of real human models positioned as closely as possible to computer drawn figures from the human figures MRT used in Doyle and Voyer’s 2013 study, and one using analogous block figures. It was hypothesised that, when compared to the analogous block figures, the real human figures would l

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Huré, J.-M. "Nested spheroidal figures of equilibrium I. Approximate solutions for rigid rotations." Monthly Notices of the Royal Astronomical Society 512, no. 3 (2022): 4031–46. http://dx.doi.org/10.1093/mnras/stab3388.

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ABSTRACT We discuss the equilibrium conditions for a body made of two homogeneous components separated by oblate spheroidal surfaces and in relative motion. While exact solutions are not permitted for rigid rotation (unless a specific ambient pressure), approximations can be obtained for configurations involving a small confocal parameter. The problem then admits two families of solutions, depending on the pressure along the common interface (constant or quadratic with the cylindrical radius). We give in both cases the pressure and the rotation rates as a function of the fractional radius, ell

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Dicheva-Kirilova, Natasha, and Jaklina Jivkova-Todorova. "A constructive model of orthogonal axonometry." Facta universitatis - series: Architecture and Civil Engineering 2, no. 5 (2003): 405–12. http://dx.doi.org/10.2298/fuace0305405d.

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A new method for object representation in arbitrary orthogonal axonometry is suggested. Constructions for a point drawing are shown, using two rotations - a rotation of the coordinate plane Oxy to the profile plane and a rotation of the profile plane to the projection plane. Using these simple constructions, an object can be projected on arbitrary plane. Plane figures (circles and polygons) can be pictured, too.

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Larson, Gerald E. "Mental rotation of static and dynamic figures." Perception & Psychophysics 58, no. 1 (1996): 153–59. http://dx.doi.org/10.3758/bf03205484.

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Dissertations / Theses on the topic "Rotation figures"

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Groux, Denis. "Figures d'équilibre d'un fluide en rotation /." [S.l.] : [s.n.], 1999. http://library.epfl.ch/theses/?nr=2095.

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Trethewey, Sally Olin. "Effects of computer based two and three dimensional visualization training for male and female engineering graphics students with low, middle, and high levels of visualization skill as measured by mental rotation and hidden figures tasks." Connect to resource, 1990. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1228748592.

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Grady, Cheryl U. "The effect of figural information on solution strategy and performance in mental rotation tasks /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09SPS/09spsg733.pdf.

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Abou, Diwan Elie. "Matériau composite de silice dopée par des nanoparticules magnétiques de ferrite de cobalt : influence de la structuration 3D sur le comportement spectral de l'effet Faraday." Thesis, Saint-Etienne, 2014. http://www.theses.fr/2014STET4015/document.

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Le laboratoire LT2C utilise depuis quelques années un procédé sol-gel basse température pour développer un matériau magnéto-optique composite parfaitement compatible avec les technologies d’optique intégrée sur verre. Néanmoins, la qualité actuelle du matériau ne permet pas son utilisation dans l’intégration des composants à effets non-réciproques. Dans le but d’exalter les effets magnéto-optiques et le facteur de mérite du matériau, le laboratoire LT2C s’est orienté vers sa structuration 3D en adaptant une approche basée sur les opales. Cette dernière consiste à fabriquer des opales directes

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"Figure rotation of dark halos in cold dark matter simulations." Thesis, 2005. http://hdl.handle.net/10413/1666.

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We have simulated structure formation on cosmological-scales using N-body simulations run on the University of KwaZulu-Natal's cluster of computers and have used these simulations to investigate aspects of galaxy evolution. In particular, we focus on the rotation of dark matter halos identified in Cold Dark Matter (CDM) simulations. These halos are typical of those thought to surround galaxies. Understanding their morphology and kinematics will help with the interpretation of observations and will constrain models of galaxy formation and evolution. We have determined the mass function of our s

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CIPOLLETTA, FEDERICO. "Structure of rotating self-gravitating figures of equilibrium in Newtonian gravity and general relativity with an emphasis on neutron stars." Doctoral thesis, 2016. http://hdl.handle.net/11573/926072.

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Studio di modelli numerici per la costruzione di configurazione di equilibrio di stelle in rotazione rapida sia in gravità Newtoniana che in Relatività Generale. Presentazione del mio codice Newtoniano e applicazione dei risultati in campo relativistico a problemi astrofisicamente interessanti.

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Books on the topic "Rotation figures"

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1929-, Teisseyre R., and Amalvict M, eds. Gravity and low-frequency geodynamics. Elsevier, 1989.

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S, Chandrasekhar. Ellipsoidal figures of equilibrium. Dover, 1987.

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S, Chandrasekhar. Ellipsoidal figures of equilibrium. Dover, 1987.

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Reinhard, Meinel, ed. Relativistic figures of equilibrium. Cambridge University Press, 2008.

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Reinhard, Meinel, ed. Relativistic figures of equilibrium. Cambridge University Press, 2008.

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Ferando, Christina. Exhibiting Antonio Canova. Amsterdam University Press, 2023. http://dx.doi.org/10.5117/9789463724098.

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Exhibiting Antonio Canova: Display and the Transformation of Sculptural Theory argues that the display of Canova’s sculptures in the late eighteenth and early nineteenth centuries acted as a catalyst for discourse across a broad range of subjects. By enshrining his marble figures alongside plaster casts of ancient works, bathing them in candlelight, staining and waxing their surfaces, and even setting them in motion on rotating bases, Canova engaged viewers intellectually, physically, and emotionally. These displays inspired discussions on topics as diverse as originality and artistic producti

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Pinna, Baingio. On the Pinna Illusion. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780199794607.003.0074.

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The Pinna illusion is the first case of visual illusion showing a rotating motion phenomenon. Squares, arranged in two concentric rings, show a strong counter-rotation effect. The inner ring of the squares appears to rotate counterclockwise and the outer ring clockwise when the observer’s head is slowly moved toward the figure while the gaze is kept fixed in the center of the stimulus pattern. The direction of rotation is reversed when the observer’s head moves away from the stimulus. The speed of the illusory rotation is proportional to the one of the motion imparted by the observer. While th

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Neugebauer, Gernot, Reinhard Meinel, Marcus Ansorg, David Petroff, and Andreas Kleinwächter. Relativistic Figures of Equilibrium. Cambridge University Press, 2012.

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Neugebauer, Gernot, Reinhard Meinel, Marcus Ansorg, David Petroff, and Andreas Kleinwächter. Relativistic Figures of Equilibrium. Cambridge University Press, 2008.

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Neugebauer, Gernot, Reinhard Meinel, Marcus Ansorg, David Petroff, and Andreas Kleinwächter. Relativistic Figures of Equilibrium. Cambridge University Press, 2008.

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Book chapters on the topic "Rotation figures"

1

Ruthsatz, Vera, Sarah Neuburger, Petra Jansen, and Claudia Quaiser-Pohl. "Pellet Figures, the Feminine Answer to Cube Figures? Influence of Stimulus Features and Rotational Axis on the Mental-Rotation Performance of Fourth-Grade Boys and Girls." In Spatial Cognition IX. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11215-2_26.

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Cortada, Laura. "Technologies for integrated nematode management in smallholder farming systems: no one-size-fits-all." In Integrated nematode management: state-of-the-art and visions for the future. CABI, 2021. http://dx.doi.org/10.1079/9781789247541.0063.

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Abstract In this chapter, the need to take a more critical look at the highly precarious and vulnerable situation of smallholder farming systems, the predominant type of the agricultural output worldwide, is emphasized. These farmers represent 98% of the farmers in the world that sustain the local production of staple crops such as rice, maize, cassava, groundnut and millet. Although there is some disparity in the figures, recent data estimates that there are between 380 and 500 million smallholder farming households globally. The productivity of the smallholders' farms depends on soil health

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Yang, Lung-Jieh, and Balasubramanian Esakki. "Figure-of-Eight Motion and Flapping Wing Rotation." In Flapping Wing Vehicles. CRC Press, 2021. http://dx.doi.org/10.1201/9780429280436-12.

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Lützen, Jesper. "Figures of Equilibrium of a Rotating Mass of Fluid." In Studies in the History of Mathematics and Physical Sciences. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-0989-8_11.

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Brorson, Stig. "Radiology and the Advent of Surgical Interventions for Shoulder Fractures." In Shoulder Fractures in Context. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-93604-3_7.

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Abstract This chapter presents historical techniques for operative fixation of shoulder fractures based on sources from the first decade of the twentieth century. New treatment modalities followed the publication of Röntgen’s On a New Kind of Rays (1896), an innovation almost immediately useful to the practice of diagnostics and preoperative planning. Although internal fixation was not novel, it had previously been limited to subcutaneous fractures and considered risky. But new surgical techniques and implants emerged by the turn of the century, including wires, screws, cerclage, and staples.

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Solonnikov, V. A. "On the Stability of Non-symmetric Equilibrium Figures of Rotating Self-gravitating Liquid not Subjected to Capillary Forces." In New Directions in Mathematical Fluid Mechanics. Birkhäuser Basel, 2009. http://dx.doi.org/10.1007/978-3-0346-0152-8_19.

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"List of Figures." In Quaternions and Rotation Sequences. Princeton University Press, 1999. http://dx.doi.org/10.1515/9780691211701-001.

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"List of Figures." In Quaternions and Rotation Sequences. Princeton University Press, 2020. http://dx.doi.org/10.2307/j.ctvx5wc3k.3.

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Diamond, Patrick H., Xavier Garbet, Philippe Ghendrih, and Yanick Sarazin. "Color Figures." In Rotation and Momentum Transport in Magnetized Plasmas. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814644839_0006.

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"Rotation, circumduction and overturning of square figures." In Mental Imaginery in the Child. Routledge, 2013. http://dx.doi.org/10.4324/9781315006277-9.

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Conference papers on the topic "Rotation figures"

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Chan, Keen. "Generalized Aerodynamic Optimization of Hovering Coaxial Rotor Blades." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-11992.

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This paper presents the development and application of a generalized approach to the aerodynamic optimization of hovering coaxial rotors. The generalization lifts the constraints of previous theories, and enables dis-similar rotor diameters, dis-similar rotational speeds and thrust-sharing percentage of the upper and lower rotor of a coaxial pair to be incorporated as design variables. This increased versatility was necessitated by the emergence of all-electric VTOL UAVs which feature independently driven rotors, and have unique operational requirements. The optimization methodology begins wit

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Herniczek, Mark, Dustin Jee, Brian Sanders, and Daniel Feszty. "Rotor Blade Optimization and Flight Testing of a Small UAV Rotorcraft." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11569.

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Rotor blade optimization with blade airfoil Reynolds numbers between 100,000 and 500,000 - characteristic of radio controlled (RC) helicopters - was performed using Blade Element Momentum theory (BEMT) and demonstrated via flight tests. BEMT was used to test various airfoil profiles and rotor blade shapes using airfoil data from 2D Computational Fluid Dynamics (CFD) simulations with Reynolds numbers representative of the blade elements. A blade design utilizing a cambered profile, taper and twist was developed for increased performance in hover. Selected blade designs were manufactured and fli

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Qi, Wu, Zhao Qi-jun, Wang Bo, and Yin Zhi-zhao. "Highly-efficient Aerodynamic Design of Rotor with High Performance." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10116.

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To design helicopter rotor efficiently, an adjoint-based and RBF surrogate model coupled method is applied for aerodynamic design of hovering rotor with high aerodynamic performance in a non-inertial reference frame. The OC-O type body-fitted grids are generated around the rotor blade, and the DDM method and "Inverse map" method are utilized for the rapid identification of hole cells and hole boundary donor cells respectively. Based on the embedded grid system, the RANS equations coupled with S-A turbulence model in rotating frame are used as the governing equations, the upwind scheme of Roe w

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Kordonsky, Wm I., I. V. Prokhorov, B. E. Kashevsky, et al. "Glass Polishing Experiments Using Magnetorheological Fluids." In Optical Fabrication and Testing. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/oft.1994.otub2.

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A pre-prototype magnetorheological (MR) finishing machine has been constructed at the Center for Optics Manufacturing. It consists of an electromagnet, a trough for MR fluid containment and a work spindle (see Figures 1 and 2). A glass part is mounted on the spindle, positioned within the trough and above the magnet pole pieces. Polishing occurs on the surface of the glass as a function of the movement of polishing abrasives through a zone of high pressure, created by the action of the magnetic field on the MR suspension[1]. Polishing slurry in the zone of high pressure is continually refreshe

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Schils, George F., and Donald W. Sweeney. "Recognition of elementary geometric figures using rotationally invariant correlation filters." In OSA Annual Meeting. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/oam.1986.fq6.

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Sophisticated machine vision systems will require a high-speed front end that can compress the massive information present in visual data. These machine vision systems require as input the locations of basic geometric features, such as lines, arcs, and corners. Objects such as lines maintain their shape when viewed from any perspective, but they still must be recognized from an arbitrary rotation angle.

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He, Ping, William A. McGahan, and John A. Woollam. "Optimization of Quadralayer Structures for Various Magneto-Optical Recording Materials." In Optical Data Storage. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/ods.1991.wc5.

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Computer simulation of magneto-optical responses as a function of wavelength (300 - 800 nm), thicknesses, and material were made, based on the scattering matrix formulation for the calculation of optical and magneto-optical response of multilayer systems.1 Results from the following MO materials systems are presented: bismuth substituted garnets, TbFeCo, PtMnSb, and NiMnSb. Silicon nitride and silicon carbide were the dielectrics used in the simulations, and aluminum was assumed for the reflector. The optimum structure for each of these materials systems has been found. The Kerr rotation, elli

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Balázs, Matthias, and Martin Spieck. "Analysis of the DLR Planetary Roller Spindle Drive." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5911.

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Abstract The DLR Planetary Roller Spindle Drive (PRSD), a new linear actuator developed at the German Aerospace Center (DLR), transforms fast rotation of a drive into slow but powerful linear movement. To optimize dynamical behaviour and performance of modified PRSD design versions, modelling and calculation methods have been developed, taking into account the very special requirements of this new design. To analyze the operating characteristics and performance figures, the DLR Planetary Roller Spindle Drive was modelled as a multibody system (MBS). Special attention was directed on the descri

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Lobanova, K., and A. Melnikov. "The influence of uncertainty in the shape of an asteroid on the estimate of perturbation magnitudes in its rotational dynamics when approaching the Earth." In Modern astronomy: from the Early Universe to exoplanets and black holes. Special Astrophysical Observatory of the Russian Academy of Sciences, 2024. https://doi.org/10.26119/vak2024.148.

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The shape of the vast majority of small asteroids is unknown. There are only estimates of the average diameter obtained for them on the basis of absolute magnitude and albedo under a number of assumptions. To estimate the magnitude of perturbations in the rotational dynamics of an asteroid that arise when approaching the Earth by means of numerical modeling, it is necessary to know its moments of inertia, determined, among other things, by the shape of the asteroid. By conducting massive numerical experiments to simulate a close approach of an asteroid to the Earth, the influence of the figure

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Sparrow, John E., and W. Wren Stine. "Effects of vertex phase and velocity on the perceived deformation of rigidly rotating polygons of eight vertices." In OSA Annual Meeting. Optica Publishing Group, 1987. http://dx.doi.org/10.1364/oam.1987.thk3.

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In certain conditions, the isometric projection of a rigidly rotating eight-vertex polygon appears to deform.1 Sparrow and Stine2 suggested that the difference in rotational phase between vertices controls the degree to which a change of shape is perceived during rotation. The degree to which the rotating polygon appeared to deform was measured by asking subjects to adjust the retinal disparity required to just cancel deformation. Given that a rigidly rotating polygon appears rigid when viewed directly (as opposed to viewing an isometric projection of the polygon), our disparity threshold repr

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Pakniyat, Ali, Hassan Salarieh, Gholamreza Vossoughi, and Aria Alasty. "A Modification on Performance of MEMS Gyroscopes by Parametro-Harmonic Excitation." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25257.

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In this paper, parametric excitation for MEMS gyroscope proposed by Oropeza-Ramos, et al. [1–4] is examined and problems associated with this kind of excitation are shown. It is proved that origin has exponential stability for some sets of parameter values (including those considered in [1–4]). This stability is shown to be global for linearized system and local for the general nonlinear system. Hence, it is concluded that if there would be a periodic orbit, the system has difficulties reaching it. As a solution, a harmonic term to the parametric excitation is added and the new actuation is re

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Reports on the topic "Rotation figures"

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Dyke, A. S., J. E. Campbell, and G. Lauzon. Surficial geology, Abitau Lake, Northwest Territories, NTS 75-B. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330072.

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The Abitau Lake map area lies in the Rae Province of the Canadian Shield. Quaternary deposits are extensive and thick, with bedrock outcrop concentrated in the northwest and southwest. Till is extensively streamlined to the west-southwest by late deglacial ice flow from the Keewatin Ice Divide. The region is incised by west-southwest flowing subglacial meltwater corridors that extend across the map area, spaced 5 to 15 km apart. The ice flow chronology (Figure 1) is recorded both in the landforms and in the striae record. Rare measurements record an old flowset oriented northwest-southeast. We

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Dyke, A. S., and J. E. Campbell. Surficial geology, McCann Lake, Northwest Territories, NTS 75-G. Natural Resources Canada/CMSS/Information Management, 2025. https://doi.org/10.4095/pjfeux56fu.

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La zone cartographique du lac McCann se trouve dans la province rae du Bouclier canadien. Les dépôts quaternaires sont vastes et épais, avec des affleurements rocheux éparpillés partout. Le till est largement profilé vers l’ouest-sud-ouest par l’écoulement glaciaire tardif de la ligne de partage des eaux glaciaires de Keewatin et est incisé par des corridors d’eau de fonte sous-glaciaires d’écoulement ouest-sud-ouest qui s’étendent sur toute la zone cartographique, espacées de 5 à 15 km. La chronologie de l’écoulement glaciaire (figure 1) est consignée à la fois dans les reliefs et les stries.

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Hynd, David, Caroline Wallbank, Jonathan Kent, et al. Costs and Benefits of Electronic Stability Control in Selected G20 Countries. TRL, 2020. http://dx.doi.org/10.58446/lsrg3377.

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This report, commissioned by Bloomberg Philanthropies, finds that 42,000 lives could be saved and 150,000 serious injuries prevented by 2030 if all new cars in seven G20 countries were required to be equipped with an inexpensive crash avoidance technology starting in 2020. Thirteen G20 counties currently adhere to United Nations regulations on electronic stability control (ESC). If the seven remaining countries—Argentina, Brazil, China, India, Indonesia, Mexico and South Africa—also mandated ESC in 2020, the report estimates $21.5 billion in economic benefit to those countries from the prevent

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