Results 31 to 40 of about 269,206 (174)
Influence of particle size in silo discharge
EPJ Web of Conferences, 2017 Recently Janda et al. [Phys. Rev. Lett. 108, 248001 (2012)] reported an experimental study where it was measured the velocity and volume fraction fields of 1 mm diameter stainless steel beads in the exit of a two-dimensional silo.
Gella Diego, Maza Diego, Zuriguel Iker
doaj +1 more source
Do Global String Loops Collapse to Form Black Holes? [PDF]
, 1993 Hawking has shown that the emission of gravitational radiation cannot prevent circular loops of gauged cosmic strings from collapsing into black holes. Here we consider the corresponding question for global strings: can Goldstone boson emission prevent ...
Dabholkar +10 more
core +3 more sources
Democratising Artificial Intelligence for Pandemic Preparedness and Global Governance in Latin American and Caribbean Countries. [PDF]
Microb BiotechnolThis piece highlights how the AI4PEP network empowers Latin American and Caribbean countries to adopt responsible, locally driven AI for pandemic preparedness, addressing global governance challenges while promoting equitable access, innovation and inclusion in public health.
Rocha U +17 more
europepmc +2 more sources
Revista de Educación Matemática, 2023 El presente artículo muestra un ejemplo de trabajo interdisciplinario entre la matemática aplicada, la ecología y la docencia. En el mismo se detalla el proceso de construcción de un modelo poblacional para las morsas del Pacífico (Odobenus rosmarus), a ...
Pehuén Barzola Elizagaray +9 more
doaj +1 more source
A triangle model of criminality [PDF]
, 2008 This paper is concerned with a quantitative model describing the interaction of three sociological species, termed as owners, criminals and security guards, and denoted by X, Y and Z respectively. In our model, Y is a predator of the species X, and so is
Ball +22 more
core +5 more sources
Revista Professor de Matemática On line, 2019 O estudo de funções no Ensino Médio, praticado sob a perspectiva apenas da matemática teórica, pode-se constituir em obstáculo de difícil transposição no que diz respeito à compreensão de seus conceitos e aplicações.
Elizangela K. S. Goldoni
semanticscholar +1 more source
Electronic Journal of Qualitative Theory of Differential Equations, 2018 We present a novel approach to study the local and global stability of families of one-dimensional discrete dynamical systems, which is especially suitable for difference equations obtained as a convex combination of two topologically conjugated maps ...
Daniel Franco, Juan Perán, Juan Segura
doaj +1 more source
The rigidity of embedded constant mean curvature surfaces [PDF]
, 2007 We study the rigidity of complete, embedded constant mean curvature surfaces in R^3. Among other things, we prove that when such a surface has finite genus, then intrinsic isometries of the surface extend to isometries of R^3 or its isometry group ...
Meeks III, William H. +1 more
core +2 more sources
Kahoot aplicada en la evaluación sumativa en un curso de matemática discreta
, 2020 This article describes a classroom experience, the result of research, in which a group of students of the Discrete Mathematics course was evaluated on a fundamental topic such as set theory and its operations through Venn diagrams. This, by means of the
Ricardo Enrique Valles-Pereira +1 more
semanticscholar +1 more source
One-loop mass shift formula for kinks and self-dual vortices [PDF]
, 2005 A formula is derived that allows us to compute one-loop mass shifts for kinks and self-dual Abrikosov-Nielsen-Olesen vortices. The procedure is based in canonical quantization and heat kernel/zeta function regularization methods.Comment: LaTex file, 8 ...
Fuertes, W. Garcia +3 more
core +2 more sources