Now showing items 383-402 of 484

    • Remoção de íons de metais pesados com bentonitas modificadas 

      Tejedor De León , Alexis; Goulart Nunes, Denise; Rubio, Jorge (2001-06-23)
      O presente trabalho apresenta o desenvolvimento de um material sorvente a partir de bentonitas brasileiras modificadas quimicamente com o objetivo de aumentar sua capacidade de sorção de metais pesados e seu valor agregado. ...
    • Remote sensing of temperature changes in Panama canal watershed from landsat 

      Ureña, Grimaldo; Fábrega, José (2010-09)
      La temperatura de superficie es un factor central, como variable de control en los estudios de cambio climático, balance de calor y modelos climáticos. El conocimiento de la temperatura de superficie es importante para ...
    • Resiliencia y oportunidades para cineastas en Panamá 

      Dominguez, Carlos; Berbey Alvarez, Aranzazu (TRIM Tordesillas revista de investigación multidisciplinar, 2024-01)
      En el siguiente estudio se analizó la resiliencia y las oportunidades para los cineastas panameños. Esta investigación tiene como propósito explorar la historia del cine panameño y demostrar que debemos seguir apoyando ...
    • Restricción del Río Caimito para Uso Recreativo según el Índice de calidad de Agua 2004 

      Barranco Pilides, Nelson (2013-07-05)
      Debido al crecimiento vertiginoso de las áreas suburbanas por falta de planificación y desconocimiento de la población y su interrelación con el medio ambiente, se contaminan nuestras fuentes de agua potable. El Río Caimito, ...
    • Resultados de la Identificación de Conglomerados y Proyectos Basados en I+D+i en Sectores Agropecuario y Agroindustrial Panameño al Año 2008 

      Alvarez Z., Marta A.; Guillén, Víctor; Tejedor, Wedleys (2009-06-01)
      La identificación de conglomerados y proyectos basados en I+D+I, ejecutada bajo el Proyecto “Estudio del sector agropecuario y agroindustrial panameño para identificar conglomerados y proyectos basados en I+D+I que fomenten ...
    • Reuse of use cases diagrams: an approach based on ontologies and semantic web technologies 

      Bonilla-Morales, Belen; Crespo, Sergio; Clunie, Clifton (2012-07-04)
      Software reuse is defined as the use of any artifact, or part thereof, created before, on a new Project. This practice has significant benefits in reducing costs and increasing quality and productivity in software development. ...
    • Review of Zero Energy Building Concept-Definition and Developments in Latin America: A Framework Definition for Application in Panama 

      Chen Austin, Miguel; Chung-Camargo, Katherine; Mora, Dafni (2021-09-08)
      In recent decades, European countries have developed concepts, definitions, and construction technologies for Zero Energy Building (ZEB) that are effective and correspond to their specific climates. Latin American countries ...
    • ROBOCLIMBER: Control System Architecture 

      Montes Franceschi, Héctor; Armada, Manuel; Nabulsi, Samir (07/01/2004)
      The paper shows the complete system architecture of a walking and climbing robot developed to make slope consolidation, where heavy duty equipment is employed for drilling up to 20m holes. ROBOCLIMBER a quadruped robot ...
    • Robot Saltador y Procedimiento para su Control 

      Akinfiev, Teodor; Armada, Manuel; Fernández, Roemi; Montes Franceschi, Héctor (2005-10-01)
      Robot saltador para el movimiento en terrenos con obstáculos, que contiene al menos un resorte (4) con uno de sus extremos unido al cuerpo (1) del robot, y una cadena cinemática entre el motor (5) y el resorte (4) que ...
    • Robot Semantic Localization Through CNN Descriptors 

      Cruz, Edmanuel; Rangel, José Carlos; Cazorla, Miguel (11/12/2017)
      Semantic localization for mobile robots involves an accurate determination of the kind of place where a robot is located. Therefore, the representation of the knowledge of this place is crucial for the robot. In this paper ...
    • Robots Móviles para Tareas de Desminado Humanitario 

      Armada, Manuel; Fernández, Roemi; Montes Franceschi, Héctor; Sarria, Javier; Salinas, Carlota (2013-07-05)
      La eliminación de minas antipersona es un problema de dimensión internacional que requiere del empleo de nuevas tecnologías tales como el desarrollo de sensores avanzados y el empleo eficiente de robots móviles. ...
    • Robust Cascade Controller for Nonlinearly Actuated Biped Robots: Experimental Evaluation 

      Caballero, Rony; Armada, Manuel; Akinfiev, Teodor (2004-06-26)
      In this paper we consider the postural stability problem for nonlinearly actuated quasi-static biped robots, both with respect to the joint angular positions and also with reference to the gripping effect between the ...
    • Robust lane marking detection based on multi-feature fusion 

      Cáceres Hernández, Danilo; Seo, Dongwook; Hyun Jo, Kang (07/06/2016)
      In the field of intelligent vehicle systems (IVS), color and edge of lane markings are important features for vision-based applications. This paper proposes a method to detect lane marking based on a fusion approach which ...
    • Role of pH in partitioning and cation exchange of aromatic amines on water-saturated soils 

      Li, Hui; Lee, Linda; Fábrega, José; Jafvert, Chad (08/04/2001)
      Predicting the reversible interactions between aromatic amines and soil is essential for assessing the mobility, bioavailability and exposure from contaminated sites. Reversible sorption mechanisms of aniline and α-naphthylamine ...
    • Roughness measurement of paper using speckle 

      Pino, Abdiel; Pladellorens, Josep; Cusola, Oriel; Caum, Jesus (2011-09-02)
      We present a method of measure of the roughness of the paper based on the analysis of a speckle pattern on the surface. Images of speckle over the surface of paper are captured by means of a simple configuration using a ...
    • RSOA basado en ontologías para entornos virtuales en la educación superior panameña 

      Villarreal, Yazmina; Morales, Maritza; González, Elida; Béliz Osorio, Nicholas; Lopez, Victor; Gómez, Boris; Muñoz, Ana (Virtual Educa 2014Virtual Educa 2014, 07/01/2014)
      En la búsqueda de información en la Web hay diversos factores que dan como resultado que un alto porcentaje de los recursos recuperados con una herramienta de búsqueda no cumplan con las condiciones ...
    • S-MAS: An adaptive hierarchical distributed multi-agent architecture for blocking malicious SOAP messages within Web Services environments 

      Pinzón Trejos, Cristian; Bajo, Javier; De Paz, Juan; Corchado, Juan (05/01/2011)
      During the last years the use of Web Service-based applications has notably increased. However, the security has not evolved proportionally, which makes these applications vulnerable and objective of attacks. One of the ...
    • 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 ...