https://ri.ufs.br/jspui/handle/riufs/143 2026-07-09T10:26:42Z https://ri.ufs.br/jspui/handle/riufs/25189 Título: Third-order nonlinear optical responses of colloidal Ag nanoparticles dispersed in BMI.BF4 ionic liquid Autor(es): Corrêa, Nivea Fernanda; Santos, Cássio E. A.; Valadão, Daniela Rodrigues Borba; Oliveira, Luciane França de; Dupont, Jairton; Alencar, Márcio André Rodrigues Cavalcanti de; Hickmann, Jandir Miguel 2016-01-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25156 Título: Measuring milk fat content by random laser emission Autor(es): Abegão, Luis Miguel Gomes; Pagani, Alessandra Almeida Castro; Zilio, Sérgio Carlos; Alencar, Márcio André Rodrigues Cavalcanti de; Rodrigues Júnior, José Joatan 2016-01-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25144 Título: A comparative study of Er3+ , Er 3+ -Eu 3+ , Er 3+ -Tb3+ , andEr 3+ -Eu 3+ -Tb3+ codoped Y2 O 3 nanoparticles as optical heaters Autor(es): Sobral Júnior, Geraldo Alves; Gomes, Maria de Andrade; Avila, Jhon Fredy Martinez; Rodrigues Júnior, José Joatan; Macedo, Zélia Soares; Alencar, Marcio Andre Rodrigues Cavalcanti de 2015-01-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25141 Título: Esferas de gás em estado de equilíbrio sob ação da gravitação própria Autor(es): Smirnov, Andrei; Oliveira, Ricardo Max Menezes Abstract: In the paper we discuss equilibrium states of stars, using a simplified analytic model. A star is considered as a self-graviting body of gas. We use a condition for the equilibrium state of the body in the form of a differential equation, which relates the pressure distribution and mass density in the body. The density distributions of constant, potential, gaussian, and exponential forms are discussed. Exact expressions for the distribution of mass and pressure along the radial direction, and the central pressure were obtained. 2015-01-01T00:00:00Z