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Papers by luis jimenez
International Journal of Production Economics, 2001
ABSTRACT
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Data & Knowledge Engineering, 2006
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ABSTRACT
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Bioresources
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Cellulose Chemistry and Technology
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Bioresources
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Resumen.-La endocarditis infecciosa (EI) es una patología de difícil diagnóstico debido a que su ... more Resumen.-La endocarditis infecciosa (EI) es una patología de difícil diagnóstico debido a que su manifestación en los pacientes es altamente variable. En este trabajo se propuso un algoritmo semi-automático para la detección de la EI basado en el procesamiento digital de imágenes SPECT usando un volumen de imágenes CT como referencia espacial. Se calculó la tasa corazón/pulmón usando la información de las imágenes SPECT. No se observaron diferencias estadísticamente significativas entre los valores de las tasas corazón/pulmón de un grupo de pacientes diagnosticados con EI (1.2829±0.2001) y un grupo de sujetos sanos o controles (1.1870±0.0899). Sin embargo es necesario aumentar la muestra de estudio tanto de sujetos con diagnóstico de EI como del grupo control, así como mejorar la calidad de las imágenes. Palabras clave.-Endocarditis infecciosa, detección, procesamiento digital, imágenes SPECT/CT. I. INTRODUCCIÓN La endocarditis infecciosa (EI) es una patología manifestada como una i...
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Afinidad -Barcelona-
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Some non-wood plants provide excellent fibres for making special paper and help to alleviate the ... more Some non-wood plants provide excellent fibres for making special paper and help to alleviate the increasing shortage of wood raw materials in some areas. Conventional pulping processes (particularly sulphite-based and kraft) are not adequate for production of pulp with non woody raw material. Alternative processes based on sulphur-free organic solvents have been studied at laboratory and pilot plant scale for a variety of raw materials. The yield of the process and final pulp properties (the breaking length, burst index and tear index of paper sheets) depend strongly on the characteristics of used raw materials and on the operation conditions of the process. Based on experimental results we have developed simulations of pulping processes with different organic solvents. The simulation allows determining mass and energy balances and also the optimum operating conditions. The obtained results are compared with the equations derived from the experimental design. The developed simulatio...
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Afinidad -Barcelona-
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Afinidad -Barcelona-
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International Journal of Production Economics, 2001
ABSTRACT
Bookmarks Related papers MentionsView impact
Data & Knowledge Engineering, 2006
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
Bookmarks Related papers MentionsView impact
ABSTRACT
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Bioresources
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Cellulose Chemistry and Technology
Bookmarks Related papers MentionsView impact
Bioresources
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Cellulose Chemistry and Technology
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Resumen.-La endocarditis infecciosa (EI) es una patología de difícil diagnóstico debido a que su ... more Resumen.-La endocarditis infecciosa (EI) es una patología de difícil diagnóstico debido a que su manifestación en los pacientes es altamente variable. En este trabajo se propuso un algoritmo semi-automático para la detección de la EI basado en el procesamiento digital de imágenes SPECT usando un volumen de imágenes CT como referencia espacial. Se calculó la tasa corazón/pulmón usando la información de las imágenes SPECT. No se observaron diferencias estadísticamente significativas entre los valores de las tasas corazón/pulmón de un grupo de pacientes diagnosticados con EI (1.2829±0.2001) y un grupo de sujetos sanos o controles (1.1870±0.0899). Sin embargo es necesario aumentar la muestra de estudio tanto de sujetos con diagnóstico de EI como del grupo control, así como mejorar la calidad de las imágenes. Palabras clave.-Endocarditis infecciosa, detección, procesamiento digital, imágenes SPECT/CT. I. INTRODUCCIÓN La endocarditis infecciosa (EI) es una patología manifestada como una i...
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Afinidad -Barcelona-
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Some non-wood plants provide excellent fibres for making special paper and help to alleviate the ... more Some non-wood plants provide excellent fibres for making special paper and help to alleviate the increasing shortage of wood raw materials in some areas. Conventional pulping processes (particularly sulphite-based and kraft) are not adequate for production of pulp with non woody raw material. Alternative processes based on sulphur-free organic solvents have been studied at laboratory and pilot plant scale for a variety of raw materials. The yield of the process and final pulp properties (the breaking length, burst index and tear index of paper sheets) depend strongly on the characteristics of used raw materials and on the operation conditions of the process. Based on experimental results we have developed simulations of pulping processes with different organic solvents. The simulation allows determining mass and energy balances and also the optimum operating conditions. The obtained results are compared with the equations derived from the experimental design. The developed simulatio...
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Afinidad -Barcelona-
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