Now showing items 391-410 of 474

    • Sagnac loop in ring resonators for tunable optical filters 

      Vargas, Salvador; Vázquez, Carmen; Sánchez Pena, José Manuel (08/01/2005)
      General filter architecture using co-and counterpropagation signals are studied. A specific configuration based on a Sagnac loop within a ring resonator is analyzed. Novel tuning, apart from conventional tuning,is achieved ...
    • Scene classification based on semantic labeling 

      Rangel, José Carlos; Cazorla, Miguel; García-Varea, Ismael; Martínez-Gómez, Jesus; Fromont, Élisa; Sebban, Marc (07/14/2015)
      Finding an appropriate image representation is a crucial problem in robotics. This problem has been classically addressed by means of computer vision techniques, where local and global features are used. The selection ...
    • Scintillometer networks for calibration and validation of energy balance and soil moisture remote sensing algorithms 

      Hendrickx, Jan; Kleissl, Jan; Gómez Vélez, Jesús; Hong, Sung-ho; Fábrega, José; Vega, David; Moreno Ramírez, Hernán; Ogden, Fred (05/07/2007)
      Accurate estimation of sensible and latent heat fluxes as well as soil moisture from remotely sensed satellite images poses a great challenge. Yet, it is critical to face this challenge since the estimation of spatial and ...
    • SCMAS: A distributed hierarchical multi-agent architecture for blocking attacks to databases 

      Pinzón Trejos, Cristian; Corchado, Juan; Bajo, Javier; De Paz, Yanira; Perez-Lancho, Belen (04/04/2010)
      One of the main attacks on databases is the SQL injection attack which causes severe damage both in the commercial aspect and the confidence of users. This paper presents a novel strategy for detecting and preventing SQL ...
    • A Security Proposal Based on a Real Time Agent to Protect Web Services Against DoS Attack 

      Pinzón Trejos, Cristian; González, Angélica; Rubio, Manuel; Bajo, Javier (2012-07-02)
      This paper describes a novel proposal based on a real time agent to detect and block denial of service attacks within web services environments. The real time agent incorporates a classification mechanism based on a Case-Base ...
    • Seismic Design of Multi-story Buildings with Metallic Structural Fuses 

      Vargas, Ramiro; Bruneau, Michel (2006-06-28)
      Seismic design relies on inelastic deformations through hysteretic behavior. However, this translates into damage on structural elements, permanent system deformations following an earthquake, and possibly high cost for ...
    • Seismic Response of Hybrid Systems with Metallic and Viscous Dampers 

      Vargas, Ramiro (2016-06-27)
      Metallic dampers can enhance structural performance by reducing seismically induced lateral displacements, and by reducing inelastic behavior of beams and columns. Limiting story drift also indirectly allows for mitigation ...
    • Seismic Response of Single-Degree-of-Freedom (SDOF) Structural Fuse Systems 

      Vargas, Ramiro; Bruneau, Michel (2004-06-26)
      Passive energy dissipation (PED) devices have been implemented to enhance structural performance by reducing seismically induced structural damage. In this paper metallic dampers are defined to be structural fuses (SF) ...
    • Seismic Response of Single-Degree-of-Freedom Systems with Structural Fuses 

      Vargas, Ramiro (2004-06-25)
      Passive energy dissipation (PED) devices have been implemented to enhance structural performance by reducing seismically induced structural damage. In this article, metallic dampers are defined to be structural fuses (SF) ...
    • Semantic Localization of a Robot in a Real Home 

      Bauer, Zuria; Rangel, José Carlos; Cazorla, Miguel; Gomez Donoso, Francisco (11/21/2018)
      In social robotics, it is important that a mobile robot knows where it is because it provides a starting point for other activities such as moving from one room to another. As a contribution to solving this problem in the ...
    • Semi-supervised 3D object recognition through CNN labeling 

      Rangel, José Carlos; Martínez Gómez, Jesus; Romero González, Cristina; García Varea, Ismael; Cazorla, Miguel (04/01/2018)
      Despite the outstanding results of Convolutional Neural Networks (CNNs) in object recognition and classification, there are still some open problems to address when applying these solutions to real-world problems. Specifically, ...
    • Services through NFC technology in AmI Environment 

      Villarreal, Vladimir; Chavira, Gabriel; Nava, Salvador; Hervás, Ramón; Bravo, José; Martín, Sergio; Castro, Manuel (11/24/2008)
      The use of Near Field Communications technology in AmI environments is a further step in achieving our particular proposal of the vision of Ubiquitous Computing and Ambient Intelligence. This work explores the single use ...
    • SiC: An agent based architecture for preventing and detecting attacks to ubiquitous databases 

      Pinzón Trejos, Cristian; De Paz, Yanira; Bajo, Javier; Abraham, Ajith; Corchado, Juan (2009-07-01)
      One of the main attacks to ubiquitous databases is the structure query language (SQL) injection attack, which causes severe damages both in the commercial aspect and in the user’s confidence. This chapter proposes the SiC ...
    • Simple and efficient method for calibration of a camera and 2D laser rangefinder 

      Cáceres Hernández, Danilo; Dung Hoang, Van; Hyun Jo, Kang (2014-04-07)
      In the last few years, the integration of cameras and laser rangefinders has been applied to a lot of researches on robotics, namely autonomous navigation vehicles, and intelligent transportation systems. The system based ...
    • Sistema de Control con Lógica Difusa y Diseño de Plataforma Autónoma con Ruedas Mecanum a Partir de su Arquitectura 

      Batista, Víctor Costella; Rodríguez, Humberto (2013-12)
      Este artículo presenta la implementación de una plataforma robótica móvil autónoma con ruedas mecanum para estudios en ambientes de carga. Se exploran los posibles movimientos y se eligen los que van a ser estandarizados ...
    • Sistema de Evaluación y Seguimiento Académico y su Aporte a los Procesos de re-acreditación de Carreras en la Universidad Tecnológica de Panam 

      Pérez, Luiyiana; Espitia, Rubén; Domínguez, Maritza (Engineering Innovations for Global Sustainability: Proceedings of the 14th Latin American and Caribbean Conference for Engineering and TechnologyEngineering Innovations for Global Sustainability: Proceedings of the 14th Latin American and Caribbean Conference for Engineering and Technology, 07/22/2016)
    • Sistema Nefelometrico Auto-referenciado Inmune a Fuentes de Luz Externas 

      Vargas, Salvador; Calvo, Jossue (02/11/2018)
      Este trabajo describe los conceptos y procedimientos aplicados para el dise no e implementación de un sensor de turbiedad de agua. El mismo se dise na con la finalidad de brindarnos lecturas de turbiedad del agua. El sensor ...
    • Situación de la Investigación Agroindustrial en Panamá (Período 2000-2009) 

      Pittí, Yamileth; Guillén, Víctor (2011-10-01)
      En Panamá, de acuerdo a la literatura consultada, a la fecha no se habían realizado estudios específicos de la situación de la investigación agroindustrial (alimentaria y no alimentaria) a pesar que existen instituciones ...
    • Smoke detection for static cameras 

      Cáceres Hernández, Danilo; Hyun Jo, Kang; Filonenko, Alexander (01/28/2015)
      This paper describes the smoke detection for static cameras. The background subtraction was used to determine moving objects. Color characteristics were utilized to distinguish smoke regions and other scene members. Separate ...
    • SoC control for improved battery life and throughput performance under VST-TDMA 

      Torres, Boris; L. Quintero, Vanessa; Estevez, Claudio; Orchard, Marcos; Azurdia, César (IETIET, 02/09/2017)
      Energy independence is a wireless device quality that demands the utmost exigency. Energy harvesting devices (EHD) alleviate the energy constraints demanded by these nodes and with the use of protocols, such as variable ...