Browsing by Author "Morera Prat, Josep Maria"
Now showing items 1-20 of 26
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Aplicación de ultrasonidos en la curtición vegetal
(2010-05-07)
Conference report
Open AccessSe estudia y pone a punto un sistema externo de aplicación de los ultrasonidos en los baños de curtición vegetal. Este sistema es muy versátil y su uso no requiere realizar modificaciones en la tenería ni supone grandes ... -
Application of infrared spectroscopy (FTIR and NIR) in vegetable tanning process control
(2013-05)
Article
Restricted access - publisher's policyThe tanning industry is currently influenced by the globalization of international markets. Competitiveness among industries has increased substantially. This therefore results in the need to further control the tanning ... -
Clasificación bayesiana de sujetos roncadores con Síndrome de Apnea Hipoapnea del Sueño mediante un método Kernel
(2011)
Conference report
Open AccessEl gold standard para diagnosticar el Síndrome de Apnea Hipoapnea del Sueño (SAHS) es la polisomnografía (PSG), un procedimiento caro y laborioso. Resultaría de mucha ayuda disponer de un método de screening sencillo que ... -
Detección del índice de curtición de pieles curtidas al vegetal mediante la espectroscopía infrarroja (FTIR)
(2010)
Article
Restricted access - publisher's policySe ha desarrollado un método analítico para determinar el índice de curtición (IC), así como de los parámetros asociados a su cálculo, mediante la técnica instrumental de la espectroscopía de infrarrojo medio con Transformada ... -
Determinación del índice de curtición de pieles curtidas al vegetal mediante la espectroscopía infrarroja (FTIR)
(2010-05-07)
Conference report
Open AccessSe ha desarrollado un método analítico para determinar el índice de curtición (IC), así como de los parámetros asociados a su cálculo, mediante la técnica instrumental de la espectroscopía de infrrojo medio con Transformada ... -
Determination of functional groups of humic derivatives as tanning-retanning agents
(2011-11-28)
Article
Restricted access - publisher's policyThree types of humic acids of different sources have been analysed in order to quantify the functional groups that may be liable to react with the proteins of leather. The quantification serves to determine the extent to ... -
Determination of penetration and fixation curves of leather using humic derivatives
(2012-06-18)
Article
Restricted access - publisher's policyThis study examines the behavior of three different types of humic acids (natural humic acids, regenerated humic acids, and sulphited humic acids) with regard to their penetration and fixation to the leather. More specifically, ... -
Economic viability of using biogas from tannery wastes in molten carbonate fuel cells
(2010-05)
Article
Restricted access - publisher's policyWastes from tanneries present a good opportunity to produce biogas and use it in high temperature fuel cells for combined heat and power systems. Biogas is considered a renewable fuel, domestically produced and free of ... -
Effect of ultrasound on several chromium tanning parameters
(2010-05)
Article
Restricted access - publisher's policyThis work studies the effect of several variables on a series of properties of the final leather obtained from chrome tanning, using ultrasounds as the sole mechanical effect during the tanning operation. The variables ... -
Entropía aproximada móvil con valores de tolerancia fijos como medida de las variaciones de amplitud en señales biomédicas
(2011)
Conference report
Open AccessEn este trabajo se presenta un nuevo método para cuantificar las variaciones de amplitud en señales biomédicas empleando la entropía aproximada (ApEn) en ventanas móviles y con valores de tolerancia (r) fijos. Los valores ... -
Evaluación de la actividad de los músculos inspiratorios mediante señales mecanomiográficas en pacientes con EPOC durante un protocolo de carga incremental
(2011)
Conference report
Open AccessEl estudio de señales mecanomiográficas (MMG) de músculos respiratorios es una técnica prometedora para evaluar el esfuerzo muscular respiratorio. En este trabajo se han analizado las señales MMG del músculo diafragma ... -
Evaluation and adaptive attenuation of the cardiac vibration interference in mechanomyographic signals
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Conference report
Restricted access - publisher's policyThe study of the mechanomyographic signal of the diaphragm muscle (MMGdi) is a promising technique in order to evaluate the respiratory muscles effort. The relationship between amplitude and frequency parameters of this ... -
Evaluation of the respiratory muscles efficiency during an incremental flow respiratory test
(2011)
Conference lecture
Restricted access - publisher's policyThe aim of this study was to evaluate the respiratory muscles efficiency during a progressive incremental flow (IF) respiratory test in healthy and Chronic Obstructive Pulmonary Disease (COPD) subjects. To achieve this, ... -
Hide unhairing: achieving lower pollution loads, decreased wastewater toxicity and solid waste reduction
(2016-01-20)
Article
Open AccessThis study aims to diminish the pollution being discharged into wastewaters through changes in the unhairing process. To this aim, we are replacing a reductive hair degrading process with a process which combines a ... -
Humic acid derivatives as tanning and retanning agents
(2012-04-02)
Article
Restricted access - publisher's policyThis study examines the behaviour of three types of humic acids (natural humic acids, regenerated humic acids, and sulphited humic acids) with regard to their capacity to be used as tans and retans. The study makes use of ... -
Interpretation of the approximate entropy using fixed tolerance values as a measure of amplitude variations in biomedical signals
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Conference report
Restricted access - publisher's policyA new method for the quantification of amplitude variations in biomedical signals through moving approximate entropy is presented. Unlike the usual method to calculate the approximate entropy (ApEn), in which the tolerance ... -
Noninvasive measurement of inspiratory muscle performance by means of diaphragm muscle mechanomyographic signals in COPD patients during an incremental load respiratory test
(IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Conference report
Open AccessThe study of mechanomyographic (MMG) signals of respiratory muscles is a promising noninvasive technique in order to evaluate the respiratory muscular effort and efficiency. In this work, the MMG signal of the ... -
Normal non-regular snores as a tool for screening SAHS severity
(2011)
Conference report
Restricted access - publisher's policySnoring is one of the earliest and most consistent sign of upper airway obstruction leading to Sleep Apnea-Hypopnea Syndrome (SAHS). Several studies on post-apneic snores, snores that are emitted immediately after an apnea, ... -
Optimization of two-low salt chrome tanning processes without float
(2007-04)
Article
Restricted access - publisher's policyThe aim of this study was to develop at pilot plant level two systems of pickle-tanning that would reduce both the amount of waste water and its content in chrome and chlorides while obtaining leathers that are commercially ... -
Regular and non regular snore features as markers of SAHS
(2010)
Conference report
Open AccessSleep Apnea-Hypopnea Syndrome (SAHS) diagnosis is still done with an overnight multi-channel polysomnography. Several efforts are being made to study profoundly the snore mechanism and discover how it can provide an ...
