Conformally symmetric circle packings. A generalization of Doyle spirals [PDF]
From the geometric study of the elementary cell of hexagonal circle packings --- a flower of 7 circles --- the class of conformally symmetric circle packings is defined. Up to Moebius transformations, this class is a three parameter family, that contains the famous Doyle spirals as a special case. The solutions are given explicitly.
arxiv
History of Protein Data Bank Japan: standing at the beginning of the age of structural genomics. [PDF]
Kurisu G, Bekker GJ, Nakagawa A.
europepmc +1 more source
OnTheFly2.0: a text-mining web application for automated biomedical entity recognition, document annotation, network and functional enrichment analysis. [PDF]
Baltoumas FA+10 more
europepmc +2 more sources
Discrete Hashimoto surfaces and a doubly discrete smokering flow [PDF]
B\"acklund transformations for smooth and ``space discrete'' Hashimoto surfaces are discussed and a geometric interpretation is given. It is shown that the complex curvature of a discrete space curve evolves with the discrete nonlinear Schr\"odinger equation (NLSE) of Ablowitz and Ladik, when the curve evolves with the Hashimoto or smoke ring flow. A
arxiv
Learner question's correctness assessment and a guided correction method: enhancing the user experience in an interactive online learning system. [PDF]
Pal S+3 more
europepmc +1 more source
What do quantum particles do, being under potential barrier? Tunnelling time. A Virtual Experiment Standpoint [PDF]
Addressed, mainly: postgraduates and related readers. Subject: Given two classical mechanical 1D-moving particles (material points), with identical initial data, one of those particles given free and another given to pass through a symmetrical force-barrier, a retardation effect is observed: After the barrier has been passed over, the second particle ...
arxiv
Web Based Java Applets For Teaching Engineering Mechanics [PDF]
Yong Yook Kim+2 more
openalex +1 more source
Web wanderings: Java, applets and a virtual radio interferometer [PDF]
M. Sandell
openalex +1 more source
Una experiencia de laboratorio virtual para la asignatura de Teoría de la Comunicación
El presente artículo describe una experiencia de aplicación de la TI (Tecnología de la Información) al proceso de aprendizaje vinculado a la asignatura de Teoría de la Comunicación. El principal objetivo era crear módulos didácticos que permitieran al
J. P. de Castro Fernández+4 more
doaj