480,596 research outputs found
Settlement in municipal solid waste landfills: II. Mathematical simulation
No full textThe biodegradation of organic matter in MSW landfills increases the void ratio and weakens the structural strength of the refuse within a landfill leading to a substantial loss of volume and settlement. Development of completed landfill sites which is highly desirable particularly in land-limited locations, is invariably hindered by these settlements. Estimating long term landfill settlements becomes an integral part towards final site closure and ultimate usage. The rate and magnitude of these settlements depend primarily on refuse composition and operational-management practices which affect bio-degradation and stabilization processes within landfills. Field scale experiments were conducted to measure refuse settlements rates under different operational management practices including leachate recirculation, addition of water, buffer and microbial seed. The effect of these practices on settlement rates and magnitudes is evaluated. The field test data are used to calibrate mathematical models that are traditionally used in soil consolidation. The models can be applied to simulate landfill settlement rates and correlate these rates to refuse biodegradation and stabilization processes within landfills. The present research work is presented in series of two papers:I. field scale experiments II. mathematical modeling of settlement behaviour
Fuat Sezgin, Geschichte des arabischen Schrifttums. Band V : Mathematik, bis ca. 430 H.
No full textRashed Roshdi. Fuat Sezgin, Geschichte des arabischen Schrifttums. Band V : Mathematik, bis ca. 430 H.. In: Revue d'histoire des sciences, tome 29, n°2, 1976. pp. 183-184
Antioxidant and antisteatotic activities of a new fucoidan extracted from ferula hermonis roots harvested on lebanese mountains
No full textFucoidan is a fucose-rich sulfated polysaccharide with attractive therapeutic potential due to a variety of biological activities, including antioxidant action. Fucoidan is typically found in the cell wall of marine brown algae, but extra-algal sources have also been discovered. In the present work, for the first time we extracted a water soluble fucoidan fraction from the roots of the terrestrial shrub Ferula hermonis. This fucoidan fraction was termed FUFe, and contained fucose, glucose, sulfate, smaller amounts of monosaccharides such as galactose and mannose, and a minor quantity of proteins. FUFe structural features were investigated by FTIR, 1H NMR and 13C NMR spectroscopy. The antioxidant property of FUFe was measured by DPPH, ABTS and FRAP assays, which revealed a high radical scavenging capacity that was confirmed in in vitro cellular models. In hepatic and endothelial cells, 50 μg/mL FUFe could reduce ROS production induced by intracellular lipid accumulation. Moreover, in hepatic cells FUFe exhibited a significant antisteatotic action, being able to reduce intracellular triglyceride content and to regulate the expression of key genes of hepatic lipid metabolism. Altogether, our results candidate FUFe as a possible bioactive compound against fatty liver disease and related vascular damage
Política Institucional de Innovación
No full textEsstablece los lineamientos y el marco normativo para promover, gestionar y consolidar una cultura de innovación dentro de la institución, articulada a sus funciones sustantivas de formación, investigación y responsabilidad social. La política reconoce la importancia del cambio, la creatividad, la colaboración y la apertura a nuevas ideas como pilares para la transformación institucional, buscando generar impacto en la calidad de vida de la comunidad universitaria y contribuir al desarrollo social y humano, tanto a nivel local como nacional. Además, el documento describe la estructura organizacional responsable, los principios, criterios de gestión y los mecanismos de evaluación que garantizan la implementación y mejora continua de las acciones innovadoras, en coherencia con el Proyecto Educativo Institucional y el Plan de Desarrollo Institucional
Polymer multimode waveguide optical and electronic PCB manufacturing
No full textThe paper describes the research in the £1.3 million IeMRC Integrated Optical and Electronic Interconnect PCB Manufacturing (OPCB) Flagship Project in which 8 companies and 3 universities carry out collaborative research and which was formed and is technically led by the author. The consortium’s research is aimed at investigating a range of fabrication techniques, some established and some novel, for fabricating polymer multimode waveguides from several polymers, some formulations of which are being developed within the project. The challenge is to develop low cost waveguide manufacturing techniques compatible with commercial PCB manufacturing and to reduce their alignment cost. The project aims to take the first steps in making this hybrid optical waveguide and electrical copper track printed circuit board disruptive technology widely available by establishing and incorporating waveguide design rules into commercial PCB layout software and transferring the technology for fabricating such boards to a commercial PCB manufacturer. To focus the research the project is designing an optical waveguide backplane to tight realistic constraints, using commercial layout software with the new optical design rules, for a demonstrator into which 4 daughter cards are plugged, each carrying an aggregate of 80 Gb/s data so that each waveguide carries 10 Gb/s
Anti-oxidant and anti-steatotic effects of fucoidans isolated from marine algae and terrestrial plants
No full textEl Tlacuache Núm. 131 (2004). 131 Año 4 (2004) agosto. El Tlacuache
No full text- La arquitectura vernácula en el Estado de Morelos. Región oriente: Yecapixtla por H. Rafael Gutiérrez Y
El Tlacuache Núm. 234 (2006). 234 Año 7 (2006) noviembre. El Tlacuache
No full textRoland Barthes y el amor por Ricardo Ferré D´Amaré. - México en Vilo: Un libro de Octavio Rodríguez Araujo por Claudio Albertani. - Origen del guarache* por Robert H. Barlow. - El Yauhtli por Margarita Avilés y Macrina Fuentes
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