Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Humberto Ramos"'
Given a real Banach space $X$, we show that the Nehari manifold method can be applied to functionals which are $C^1$ in $X \setminus \{0\}$. In particular we deal with functionals that can be unbounded near $0$, and prove the existence of a ground st
Externí odkaz:
http://arxiv.org/abs/2409.05138
Autor:
Lucia Bressiani, Humberto Ramos Roman
Publikováno v:
Gestão & Produção, Vol 24, Iss 4, Pp 745-762 (2017)
Resumo A falta de mão de obra qualificada é uma das principais dificuldades do setor da construção civil. Pesquisas demonstram que, apesar do aumento de ações voltadas à qualificação de funcionários nos últimos anos, muitas dessas ações
Externí odkaz:
https://doaj.org/article/49b9d99ba19c4f22ad877c1fe698a042
Autor:
Humberto Ramos-Sotelo, Ángel Valdez-Ortiz, Lourdes J. Germán-Báez, Juan F. Fierro-Sañudo, Jesús A. León-Cañedo, Suammy G. Alarcón-Silvas, Cuauhtémoc Reyes-Moreno, Federico Páez-Osuna
Publikováno v:
Food Chemistry: X, Vol 2, Iss , Pp - (2019)
In a previous study, we investigated the use of shrimp effluents from well water (WW) and diluted seawater (DSW) (both with 2.7 dS m−1 electrical conductivity (EC)), and a hydroponic solution (HS) as the control treatment in greenhouse lettuce prod
Externí odkaz:
https://doaj.org/article/8dfa488e736c43f0a8556e5e6be138d7
Autor:
Humberto Ramos González, José I. Ramírez Gómez, Alain Alonso Herrera, Fernando Rodríguez González, Elibet Chávez González, Manuel E. Mortera Olalde
Publikováno v:
CorSalud, Vol 5, Iss 3, Pp 261-268 (2013)
Resumen: Introducción: La estimulación cardíaca temporal está indicada en diversas situaciones de extrema urgencia, en pacientes con bradiarritmias graves y bloqueos aurículo-ventriculares de II o III grados.Su indicación siempre se considera a
Externí odkaz:
https://doaj.org/article/3d841c24ad0446748164ca946df40ce7
Autor:
Fernando Pelisser, Oscar Rubem Klegues Montedo, Philippe Jean Paul Gleize, Humberto Ramos Roman
Publikováno v:
Materials Research, Vol 15, Iss 4, Pp 679-686 (2012)
Fiber-reinforced concrete represents the current tendency to apply more efficient crack-resistant concrete. For instance, polyethylene terephthalate (PET) is a polyester polymer obtained from recyclable bottles; it has been widely used to produce fib
Externí odkaz:
https://doaj.org/article/23c1a64a6ee942cbb6ed4f576c5a7ae4
We look for critical points with prescribed energy for the family of even functionals $\Phi_\mu=I_1-\mu I_2$, where $I_1,I_2$ are $C^1$ functionals on a Banach space $X$, and $\mu \in \mathbb{R}$. For several classes of $\Phi_\mu$ we prove the existe
Externí odkaz:
http://arxiv.org/abs/2202.10175
We investigate zero energy critical points for a class of functionals $\Phi_\mu$ defined on a uniformly convex Banach space, and depending on a real parameter $\mu$. More precisely, we show the existence of a sequence $(\mu_n)$ such that $\Phi_{\mu_n
Externí odkaz:
http://arxiv.org/abs/2109.00930
Autor:
Quoirin, Humberto Ramos, Silva, Kaye
We analyze the topological structure of the Nehari set for a class of functionals depending on a real parameter $\lambda$, and having two degrees of homogeneity. A special attention is paid to the extremal parameter $\lambda^*$, which is the threshol
Externí odkaz:
http://arxiv.org/abs/2107.00777
Publikováno v:
Gestão & Tecnologia de Projetos, Vol 7, Iss 2, Pp 1-2 (2012)
Externí odkaz:
https://doaj.org/article/03532bce751a4e33836cad86bb433713
Given a reflexive Banach space $X$, we consider a class of functionals $\Phi \in C^1(X,\Re)$ that do not behave in a uniform way, in the sense that the map $t \mapsto \Phi(tu)$, $t>0$, does not have a uniform geometry with respect to $u\in X$. Assumi
Externí odkaz:
http://arxiv.org/abs/2011.07615