Relevant bibliographies by topics / Parabolic cups

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Academic literature on the topic 'Parabolic cups'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Parabolic cups"

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B., Sumanth Kumar *. G. Devendar A. Chennakesava Reddy. "FORMABILITY ANALYSIS OF PARABOLIC CUPS DRAWN FROM Ni 201 USING SINGLE POINT INCREMENTAL FORMING PROCESS." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 5 (2017): 619–28. https://doi.org/10.5281/zenodo.800628.

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Numerical simulation of single point incremental forming process (SPIF) for Ni 201 sheet material was carried out using finite element analysis software and Taguchi experimental techniques. Reduction in thickness during SPIF process of the parabolic cups was estimated. Formability diagrams were drawn based on minor and major strains, and normalized major and minor stresses. The significant process parameters were identified using analysis of variance (ANOVA). Local thing along the walls of the parabolic cups were also estimated. It has been found that the maximum thinning ranges from 58% to 61
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Pedersen, Troels Friis, and Jan-Åke Dahlberg. "Modelling of cup anemometry and dynamic overspeeding in average wind speed measurements." Atmospheric Measurement Techniques 17, no. 5 (2024): 1441–61. http://dx.doi.org/10.5194/amt-17-1441-2024.

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Abstract. Cup anemometers measure average wind speed in the atmosphere and have been used for one and a half centuries by meteorologists. Within the last half century, cup anemometers have been used extensively in wind energy to measure wind resources and performance of wind turbines. Meteorologists researched cup anemometer behaviour and found dynamic overspeeding to be an inherent and significant systematic error. The wind energy community has strong accuracy requirements for power performance measurements on wind turbines, and this led in the last 2 decades to new research on cup anemometer
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Ibragimov, A. A., A. К. Karakhanov, A. A. Abdurakhmanov, A. Е. Eshdavlatov, P. A. Uteniyazov, and A. A. Khadzhiev. "Research Results for a New Onion Seed Drill." Agricultural Machinery and Technologies 14, no. 4 (2020): 12–16. http://dx.doi.org/10.22314/2073-7599-2020-14-4-12-16.

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. For sowing small seeds of vegetables, in particular onions, special seeders are used. They are not produced in the Republic of Uzbekistan, while many diff erent pneumatic seeders are produced abroad. The authors note that foreign samples are complex in design, not adapted to local soil and climatic conditions, cannot provide even seed placement on ridges, and the cost of the seeders themselves and service are very high.(Research purpose) To develop a vegetable seeder in relation to the soil and climatic conditions of Uzbekistan, to determine the seeding rate of onion seeds depending on the l
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Jörges, Björn, Lena Hagenfeld, and Joan López-Moliner. "The use of visual cues in gravity judgements on parabolic motion." Vision Research 149 (August 2018): 47–58. http://dx.doi.org/10.1016/j.visres.2018.06.002.

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Jenkin, Michael, James Zacher, Richard Dyde, Laurence Harris, and Heather Jenkin. "Perceptual Upright: The Relative Effectiveness of Dynamic and Static Images Under Different Gravity States." Seeing and Perceiving 24, no. 1 (2011): 53–64. http://dx.doi.org/10.1163/187847511x555292.

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AbstractThe perceived direction of up depends on both gravity and visual cues to orientation. Static visual cues to orientation have been shown to be less effective in influencing the perception of upright (PU) under microgravity conditions than they are on earth (Dyde et al., 2009). Here we introduce dynamic orientation cues into the visual background to ascertain whether they might increase the effectiveness of visual cues in defining the PU under different gravity conditions. Brief periods of microgravity and hypergravity were created using parabolic flight. Observers viewed a polarized, na
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Oman, C. M., C. F. Pouliot, and A. Natapoff. "Horizontal angular VOR changes in orbital and parabolic flight: human neurovestibular studies on SLS-2." Journal of Applied Physiology 81, no. 1 (1996): 69–81. http://dx.doi.org/10.1152/jappl.1996.81.1.69.

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Further evidence was found for adaptive changes in the vestibular "velocity storage" (VS) component of the vestibuloocular reflex in four shuttle astronauts tested in parabolic flight and before, during, and after a 14-day mission. Nystagmus was recorded during and after 1 min of 120 degrees/s rotation. Gains and time constants were determined by computer analysis. Responses correlated with experience. Two subjects were making their first spaceflight. In parabolic flight, their time constants shortened to an average of 60% of 1 G values, presumably because unfamiliar otolith cues reduced VS. H
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Shelhamer, Mark, Richard A. Clendaniel, and Dale C. Roberts. "Context-specific adaptation of saccade gain in parabolic flight." Journal of Vestibular Research 12, no. 5-6 (2003): 211–21. http://dx.doi.org/10.3233/ves-2003-125-603.

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Previous studies established that vestibular reflexes can have two adapted states (e.g., gains) simultaneously, and that a context cue (e.g., vertical eye position) can switch between the two states. Our earlier work demonstrated this phenomenon of context-specific adaptation for saccadic eye movements: we asked for gain decrease in one context state and gain increase in another context state, and then determined if a change in the context state would invoke switching between the adapted states. Horizontal and vertical eye position and head orientation could serve, to varying degrees, as cues
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Prsa, Mario, Danilo Jimenez-Rezende, and Olaf Blanke. "Inference of perceptual priors from path dynamics of passive self-motion." Journal of Neurophysiology 113, no. 5 (2015): 1400–1413. http://dx.doi.org/10.1152/jn.00755.2014.

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The monitoring of one's own spatial orientation depends on the ability to estimate successive self-motion cues accurately. This process has become to be known as path integration. A feature of sequential cue estimation, in general, is that the history of previously experienced stimuli, or priors, biases perception. Here, we investigate how during angular path integration, the prior imparted by the displacement path dynamics affects the translation of vestibular sensations into perceptual estimates. Subjects received successive whole-body yaw rotations and were instructed to report their positi
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Lackner, James R. "Spatial Orientation in Weightless Environments." Perception 21, no. 6 (1992): 803–12. http://dx.doi.org/10.1068/p210803.

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Illusions of body inversion and of vehicle inversion can be evoked by exposure to weightlessness in the microgravity conditions of orbital and parabolic flight. Such illusions can involve all possible combinations of self-inversion and vehicle inversion. In the absence of any patterns of external stimulation, individuals may lose all sense of body orientation to their surroundings while retaining a sense of their overall body configuration and cognitive awareness of their actual position. Touch and pressure cues provide a perceptual ‘down’ in the absence of visual input. When vision is allowed
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Buckley, D., J. P. Frisby, V. J. Aranaz, and M. M. Lipson. "Why Do Some People Take a Long Time to See Complex Random-Dot Stereograms?" Perception 26, no. 1_suppl (1997): 102. http://dx.doi.org/10.1068/v970049.

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Some observers take a long time to see the appropriate surface shapes depicted in complex random-dot stereograms (RDSs) whereas others report seeing them quickly. We have hypothesised that this may be due in part to some observers being more affected than others by the cue conflicts that are typically present in RDSs, for which disparity is often at odds with accommodation, texture, and outline shape cues. We report two experiments in which we investigated whether a measure of dominance of texture/outline cues over disparity cues in stereograms of ridges could predict latencies to see RDSs of
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Book chapters on the topic "Parabolic cups"

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Rojas, Raúl, Mark Simon, and Oliver Tenchio. "Parabolic Flight Reconstruction from Multiple Images from a Single Camera in General Position." In RoboCup 2006: Robot Soccer World Cup X. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-74024-7_16.

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Jagadeeswari M. and GomathiNayagam V. Lakshmana. "Approximation of Parabolic Fuzzy Numbers." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2017. https://doi.org/10.3233/978-1-61499-828-0-107.

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Most of the real world problems are complex that is raised from uncertainity in the form of ambiguity. To overcome the ambiguity and impreciseness, Zadeh [20] introduced fuzzy set theory in the year 1965. The underlying power of fuzzy sets is that linguistic variables can be used rather than quantitative variables to represent imprecise concepts which are continuous transitions. The continuous imprecise concepts need to be modeled by continuous fuzzy numbers instead of intervals and real numbers. Many researchers applied triangular and trapezoidal fuzzy numbers which are piecewise linear and c
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lwaniec, Henryk. "A Formula for the Fourier Coefficients of Maass Cusp Forms." In Advances in Number Theory. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198536680.003.0007.

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Abstract In his seminal paper [5] H. Maass extended the ghetto of classical cusp forms by automorphic forms which a.re not holomorphic but, instead, are eigenfunctions of the Laplace operator Δ. For a group with parabolic elements those Maass forms which decay exponentially to zero at every cusp are called cusp forms. The Maass cusp forms remain wrapped in a shroud of mystery; it is not even known today whether they exist for a generic group. However, for any congruence group the spectral resolution of abounds with Maass cusp forms. This is shown by a counting argument using Selberg’s trace fo
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Pederiva, F., C. J. Umrigar, and E. Lipparini. "Diffusion Monte Carlo study of circular quantum dots." In Quantum Monte Carlo. Oxford University PressNew York, NY, 2007. http://dx.doi.org/10.1093/oso/9780195310108.003.00131.

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Abstract Several QMC calculations had earlier treated quantum dots of various shapes and sizes by either variational or diffusion methods. This study extended much farther, with ground and low-lying excited states for circular two-dimensional dots with 2 to 13 electrons. The method was fixed-node diffusion QMC with importance sampling. Comparisons were made with Hartree-Fock and density functional calculations at the LSDA level. The system treated was a standard circular quantum dot with N electrons confined in two dimensions by a parabolic potential V = ½kr2 centered at the origin. The masses
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Conference papers on the topic "Parabolic cups"

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Garbarino, Richard B. "Aspheric generation for large optics." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.wt3.

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Itek has developed methods to generate surfaces to high tolerances using standard numerically controlled five-axis machine tool with 0.005 in. positioning tolerance and 0.0002 in. repeatability. In this approach, the five-axis are used to keep the rotational axis of a diamond cup wheel normal to the surface at all points on the surface. This results in the entire circumference of the cup wheel performing the cutting increasing the cutting efficiencies. The method is applicable to both on and off axis spherical and aspherical surfaces, and is limited only by the size of the machine tool. This i
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Tarawneh, Constantine M., Arturo A. Fuentes, Brent M. Wilson, Kevin D. Cole, and Lariza Navarro. "Thermal Analysis of Railroad Bearings: Effect of Wheel Heating." In 2009 Joint Rail Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/jrc2009-63055.

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Catastrophic bearing failure is a major concern for the railroad industry because it can lead to costly train stoppages and even derailments. Excessive heat buildup within the bearing is one of the main factors that can warn of impending failure. A question is often raised regarding the transfer of heat from a wheel during braking and whether this can lead to false setouts. Therefore, this work was motivated by the need to understand and quantify the heat transfer paths to the tapered roller bearing within the railroad wheel assembly when wheel heating occurs. A series of experiments and finit
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