Browsing by Issue Date
Now showing items 201-220 of 3488
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Novel tuneable filter based on MZ and an amplified ring resonator for OFDM networks
(1999-11-08)A novel reconfigurable fibre based tuneable filter is proposed. The module relies on a cascaded connection of Mach-Zehnders and an amplified fibre ring resonator. MHz range adjustable FHWM bandwidths and high crosstalk are ... -
Remoção de íons de metais pesados com bentonitas modificadas
(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. ... -
A diagnostic investigation and a corrective model for implementing change in response to innovation
(2002-12-01)Organizational change can be described as a series of activities oriented towards modifying behaviors and structures within the organization. These series of activities are interconnected internally and externally and are ... -
Adsorption of Cu ions onto a 1.10 phenanthroline-grafted Brazilian bentonite
(2003-02-01)The grafting, by chemical adsorption, of molecular 1.10-phenanthroline (OP) onto some Brazilian bentonite (montmorillonites) was studied to improve their adsorptive capacities to remove Cu ions from synthetic wastewater. ... -
Vertical Movement of Resonance Hopping Robot with Electric Drive and Simple Control System
(2003-06-01)In the paper vertical movements of resonance hopping robot with one leg and electric drive are considered. Special construction of hopping robot with compensation of losses during flight of the robot allows to employ a ... -
Study of The Corrosion Products Formed on Carbon Steels in The Tropical Atmosphere of Panama
(2003-06-25)Mössbauer spectroscopy and X-ray powder diffraction (in selected samples) have been used to characterize corrosion products on carbon steels after atmospheric exposure to the tropical Panamanian locations of Panama and ... -
La responsabilidad civil por daño ambiental, en la actualidad del derecho positivo panameño
(2003-12-01)La responsabilidad civil por daño ambiental toma en consideración los daños sociales, la individualización del sujeto responsable y las dificultades de determinar el monto de la indemnización. La responsabilidad objetiva ... -
Estado Actual del Mercado de Frutos y Vegetales Frescos Cortados en Panamá
(2004-04-01)Uno de los principales problemas que confrontan las empresas dedicadas a la elaboración de frutos y vegetales frescos cortados en Panamá, es que no se han realizado estudios tendientes a establecer el tiempo de vida útil ... -
VoIP on Mesh Networks
(2004-05-07)The development of wireless communication has been very fast in the last couple of years. Today the industry demands mobility functionalities on every node. Scenarios such as emergency situations, rescue and disaster ... -
Seismic Response of Single-Degree-of-Freedom Systems with Structural Fuses
(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) ... -
Seismic Response of Single-Degree-of-Freedom (SDOF) Structural Fuse Systems
(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) ... -
Robust Cascade Controller for Nonlinearly Actuated Biped Robots: Experimental Evaluation
(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 ... -
Floor Response of SDOF Systems with Metallic Structural Fuses
(2004-06-26)The floor demands of Single-Degree-of-Freedom (SDOF) systems designed or retrofitted with metallic structural fuses are studied in this article. Floor velocity and acceleration are obtained and comparisons are made between ... -
MoMo: A Framework Proposal for Patient Mobile Monitoring
(2004-07-02)In this paper, a patient mobile monitoring enabling framework is presented. To this end, biometric devices (e.g. glucometers, blood pressure meters) are used to send data to the mobile phone via technologies such as NFC ... -
Measuring contribution of infoplazas to internet penetration and use in Panama
(2004-12)infoplazas arose in Panama as means to combat the digital gap by providing Internet connectivity to the economically disadvantaged and geographically remote. Yet there is a dearth of information regarding their actual ... -
Diseño de un instrumento de evaluación de la gestión del conocimiento, innovación y transferencia de Tecnología de Programas Académicos Afiliados a la Ciudad del Saber y Empresas del Tecnoparque Internacional de Panamá
(2005-01-02)Este proyecto de investigación es desarrollado bajo el marco del Doctorado Conjunto en Tecnologías Avanzadas para la Industria, el cual fue el resultado del convenio celebrado entre la Universidad Politécnica de Madrid y ... -
HACCP: Una Herramienta Para la Industria de los Vegetales Frescos Cortados
(2005-03-01)El sistema de Análisis de Peligros y Puntos Críticos de Control (HACCP, siglas en inglés) es un sistema de inocuidad alimentaria, diseñado para identificar y valorar peligros, establecer y vigilar controles para prevenir, ... -
Análisis, diseño y evaluación de estrategias de control de fuerza en robots caminantes
(2005-04-27)Esta Tesis Doctoral se centra en la realización de investigaciones en el campo de la robótica, y más concretamente en el análisis, diseño y evaluación de estrategias de control de fuerza y su aplicación a los robots ... -
Investigation of the Structural Fuse Concept
(2005-06-26)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) when ... -
On the Design and Development of Climbing and Walking Robots for the Maritime Industries
(2005-06-27)Modern robotic systems are increasingly powerful in terms of sensor fusion and mobility. Present technological progress allows advanced robots to cope progressively much better also with complex environments such as those ...