Results 31 to 40 of about 2,189 (143)
ABSTRACT We investigate some chemostat models incorporating wall growth, competition, random fluctuations on the dilution rate, and different consumption functions (Monod and Haldane). We analyze the asymptotic behavior of the solutions of the corresponding random differential systems to establish conditions on the model parameters under which the ...
Javier López‐de‐la‐Cruz +2 more
wiley +1 more source
NASCIMENTO DA MATEMÁTICA APLICADA NA UNICAMP SOB A INFLUÊNCIA DO PROFESSOR UBIRATAN D’AMBROSIO
Neste artigo discutimos o processo de institucionalização da matemática aplicada no Brasil com foco na criação do Departamento de Matemática Aplicada dentro do Instituto de Matemática, Estatística e Computação Científica (IMECC) da Unicamp no ano de ...
Mateus Bernardes
doaj +5 more sources
Inference on a Stochastic Bass Model for New Product Adoption
ABSTRACT This paper investigates stochastic versions of the classical Bass diffusion model, with a focus on the development and comparison of parameter estimation procedures. Two stochastic processes that generalize the classical Bass model, which is commonly used to describe sales dynamics in emerging markets, are considered.
Giuseppina Albano +3 more
wiley +1 more source
Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás +5 more
wiley +1 more source
Numerical Approach of a Porous Thermoelastic Problem With Microtemperatures and Fading Memory
ABSTRACT In this work, we study, from the numerical point of view, a porous thermoelastic problem with microtemperatures, where the thermal evolution is influenced by the history of both the temperature and microtemperatures. This leads to a coupled system of partial integro‐differential equations.
Noelia Bazarra +3 more
wiley +1 more source
Assessing the quality of random number generators through neural networks
In this paper we address the use of Neural Networks (NNs) for the assessment of the quality and hence safety of several Random Number Generators (RNGs), focusing both on the vulnerability of classical Pseudo Random Number Generators (PRNGs), such as ...
José Luis Crespo +3 more
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Based on a global analysis of 1921 soil samples, we show that agricultural management acts as a powerful ecological filter reshaping microbial communities. Land use and inputs—pesticides and fertilizers—drive a functional shift toward opportunistic pathogens and fragmented, less connected microbial networks, potentially compromising soil ecosystem ...
Zaki Saati‐Santamaría +88 more
wiley +1 more source
Abstract The eigenstructure of a rational matrix is comprised by its invariant rational functions, both finite and at infinity, and by the minimal indices of its left and right null spaces. These quantities arise in many applications and have been thoroughly studied in numerous references.
Itziar Baragaña +3 more
wiley +1 more source
O presente trabalho mostra uma ação na disciplina Matemática Aplicada na turma do primeiro semestre do curso técnico de nível médio subsequente em Serviço de Restaurante e Bar (SRB) do Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus
Joelma Nogueira dos Santos +1 more
doaj +3 more sources
De acordo com os critérios adotados, estão habilitados a submeter artigos parapublicação em uma Seleta de CNMAC aqueles autores que apresentaram os correspondentestrabalhos no evento.Do XXXIII Congresso Nacional de Matemática Aplicada e Computacional ...
Prefácio Tema
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