Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Bernard Ricardo"'
Publikováno v:
Geom. and Topol. 18 (2014) no.3, 1769-1863
Mirror symmetry of Calabi-Yau manifolds can be understood via a Legendre duality between a pair of certain affine manifolds with singularities called tropical manifolds. In this article, we study conifold transitions from the point of view of Gross a
Externí odkaz:
http://arxiv.org/abs/1301.2930
Publikováno v:
Adv. Math. 225 (2010), no. 3, 1341-1386
We construct fiber-preserving anti-symplectic involutions for a large class of symplectic manifolds with Lagrangian torus fibrations. In particular, we treat the K3 surface and the quintic threefold. We interpret our results as corroboration of the v
Externí odkaz:
http://arxiv.org/abs/0908.0966
Autor:
Castaño-Bernard, Ricardo
Publikováno v:
J. Symplectic Geom. 2, 279--308, 2004
In this paper we construct and classify Lagrangian T^3-fibrations on non compact symplectic manifolds with singular fibres of prescribed topological type. This contributes to the understanding of the structure of the singular fibres that may appear o
Externí odkaz:
http://arxiv.org/abs/math/0401321
Autor:
Jed Li Xin Lim, Bernard Ricardo
Publikováno v:
The Physics Educator.
A simple hand helicopter can be made by attaching rotor blades to one end of a vertical stick. The helicopter moves upwards when the stick is spun above a threshold angular velocity and released — a mechanism of common toys found in toy shops. This
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72d4abdbb7b4194aafdc4ddee69d3f00
https://doi.org/10.1142/s2661339523500038
https://doi.org/10.1142/s2661339523500038
Publikováno v:
The Physics Educator.
In high school and undergraduate physics, magnetic forces are often introduced as not being capable of doing work. In this paper, we explore the truth of this statement, analyzing the work done in various physical scenarios, including the bending of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4743f19c6bee7e77012492ae727be05
https://doi.org/10.1142/s2661339523500014
https://doi.org/10.1142/s2661339523500014
Publikováno v:
IRC-SET 2022 ISBN: 9789811972218
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7656221ee828f78628dcbd6bfd1d5fab
https://doi.org/10.1007/978-981-19-7222-5_24
https://doi.org/10.1007/978-981-19-7222-5_24
Publikováno v:
The Physics Educator.
In this paper, we comprehensively study the electrical resistance of pencil-stroked graphite electrodes, which is a cheap electrical conductor. Thin graphite on paper (GOP) electrodes were manually fabricated by unidirectionally stroking rectangular
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::321ba1f8c45fc98d7b3102971f93fde1
https://doi.org/10.1142/s2661339522500019
https://doi.org/10.1142/s2661339522500019
Autor:
Bernard Ricardo
Publikováno v:
The Physics Educator.
In the topics of mechanics, readily available instruments such as the Force Concept Inventory (FCI) and the Mechanics Baseline Test (MBT) have been extensively used to assess students’ conceptual understanding, especially for high school and underg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13dda6960931bac2f68b7e229797944b
https://doi.org/10.1142/s266133952150013x
https://doi.org/10.1142/s266133952150013x
Autor:
Yanlin Chen, Bernard Ricardo
Publikováno v:
Applied Physics A. 127
In this manuscript, we provide an analysis on the use of shape memory alloys (SMA), specifically NiTiNOL (Nickel–Titanium alloy, Naval Ordnance Laboratory), in a simple engine operating between two thermal reservoirs, constructed by looping a nitin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a38b8f61ee60e0d85c93e1cb1db8a6fa
https://doi.org/10.1007/s00339-021-04810-4
https://doi.org/10.1007/s00339-021-04810-4
Autor:
Jinhui Wang, Bernard Ricardo
Publikováno v:
The Physics Teacher. 57:551-554
Moments of inertia (MOIs) are usually derived via substantial integration and may intimidate undergraduates without prior backgrounds in calculus. This paper presents an intuitive geometric operation, termed “squashing,” that transforms an object
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::122d868a63898210661b60af772f45a6
https://doi.org/10.1119/1.5131123
https://doi.org/10.1119/1.5131123