Results 11 to 20 of about 130,570 (300)
Solving the heart curve with geogebra [PDF]
MATEC Web of Conferences, 2018 Heart symbols are used as expressions of love. There are several mathematical explanations that can produce a curve in the shape of a heart symbol, the most famous of which is cardioid.
Nuraida Ida +4 more
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Tintinnid ciliates (marine microzooplankton) of the Ross Sea [PDF]
, 2022 For the Ross Sea, the only Marine Protected Area in Antarctica, available data on the tintinnid ciliates of the marine microzooplankton are mostly limited to nearshore waters near Terra Nova Bay or the vicinity of the McMurdo Sound.
La , Hyoung Sul +6 more
core +1 more source
Modelling polar bear maternity den habitat in east Svalbard [PDF]
, 2020 We evaluated a novel tool that predicts possible maternity den habitat of the polar bear (Ursus maritimus) based on a physical snow transport model, a digital terrain model and weather data.
Aars, Jon +2 more
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Differential acclimation responses to irradiance and temperature in two co-occurring seaweed species in Arctic fjords [PDF]
, 2021 Arctic fjord systems experience large amplitudes of change in temperature and radiation regime due to climate warming and the related decrease in sea ice.
Bischof, Kai +2 more
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Dataset and Phyton Coding for Manuscript: An ellipse polar formula, transformation, and nonlinear curve fitting [PDF]
, 2023 The data set contains a formula for moving the graph, particularly an ellipse curve, in a polar diagram system where the shape remains the same as the origin.
Bahtiar, E (via Mendeley Data)
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On the shape of curves that are rational in polar coordinates [PDF]
Computer Aided Geometric Design, 2012 In this paper we provide a computational approach to the shape of curves which are rational in polar coordinates, i.e. which are defined by means of a parametrization (r(t),θ(t)) where both r(t),θ(t) are rational functions. Our study includes theoretical aspects on the shape of these curves, and algorithmic results which eventually lead to an algorithm
Juan Gerardo Alcázar +1 more
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Novel Surface Design of Deployable Reflector Antenna Based on Polar Scissor Structures
Chinese Journal of Mechanical Engineering, 2020 Space-deployable mechanisms can be used as supporting structures for large-diameter antennas in space engineering. This study proposes a novel method for constructing the surface design of space reflector antennas based on polar scissor units.
Pengyuan Zhao +4 more
doaj +1 more source
Pulsar Polar Cap and Slot Gap Models: Confronting Fermi Data [PDF]
Journal of Astronomy and Space Sciences, 2013 Rotation-powered pulsars are excellent laboratories for studying particle acceleration as well as fundamental physics of strong gravity, strong magnetic fields and relativity.
Alice K. Harding
doaj +1 more source
Investigating the Magnetotelluric Responses in Electrical Anisotropic Media
Remote Sensing, 2022 When interpreting magnetotelluric (MT) data, because of the inherent anisotropy of the earth, considering electrical anisotropy is crucial. Accordingly, using the edge-based finite element method, we calculated the responses of MT data for electrical ...
Tianya Luo +3 more
doaj +1 more source
Journal of Algebra, 1996 Let \(C\) be a plane curve of degree \(d\). For every integer \(t>0\) and every \(Q\in \mathbb{P}^2\) it is defined the polar curve of \(C\) of order \(t\) with respect to \(Q\). The characteristic 0 case was classical. Here the authors extend the general definitions to the positive characteristic case using Hasse derivations. They make a very detailed
Hefez, A., Kakuta, N.
openaire +3 more sources