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Article
Open AccessCold alkaline extraction of Elephant grass for optimal subsequent extraction of hemicelluloses and energy production
There is growing scientific and industrial interest in obtaining useful substances by fractionating lignocellulosic biomass from non-food plant crops for use by the bioenergy industry. The primary goals are to...
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Article
Open AccessKinetic and hydrogen production analysis in the sequential valorization of a Populus clone by cold alkaline extraction and pyrolysis
This work employed a two-step biorefining process, consisting of a hemicellulose-rich liquor production through ultrasound-assisted cold alkaline extraction (CAE), followed by thermochemical treatment of the r...
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Article
Effect of autohydrolysis on hemicellulose extraction and pyrolytic hydrogen production from Eucalyptus urograndis
Ensuring environmental and social-economic sustainability in the use of materials from lignocellulosic biomass requires their fractionation and valorization of their main components. In this work, we used Eucalyp...
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Article
Reconstruction methodology of a Francis runner blade using numerical tools
In a hydraulic turbine, the search of a better energy exchange with the fluid has led to designs of runner blade of geometrical shapes so complex that they are considered as free-form surfaces. Since such blad...
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Article
Integral valorization of tagasaste (Chamaecytisus proliferus) under thermochemical processes
The generation of compounds derived from lignocellulosic biomass fractionation has a boost in recent years. An interesting plant could be tagasaste (Chamaecytisus proliferus) due to its high biomass production an...
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Article
Experimental data and numerical predictions of a single-phase flow in a batch square stirred tank reactor with a rotating cylinder agitator
Single-phase flows in stirred tank reactors have useful characteristics for a wide number of industrial applications. Usually, reactors are cylindrical vessels and complex impeller designs, which are often hig...
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Chapter and Conference Paper
A Virtual Wind Sensor Based on a Particle Filter
Wind sensors are essential components of any sailboat, meanwhile they are also one of its most compromised and exposed elements. This paper introduces a novel approach that allows to estimate wind direction an...
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Article
Transanal minimally invasive surgery approach for rectal GIST
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Chapter
Increasing the Autonomy Levels for Underwater Intervention Missions by Using Learning and Probabilistic Techniques
This paper represents research in progress in autonomous manipulation for underwater intervention missions within the context of the GRASPER project. This project focuses on develo** manipulation skills for ...
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Article
Neural Models for Optimizing Lignocellulosic Residues Composting Process
Vegetable trimming residues are very plentiful and diverse; however, their recycling involves environmental problems. Producing high quality compost from these residues is a way to make a good use of them. The...
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Article
Influence of Plasma Intensity on Wear and Erosion Resistance of Conventional and Nanometric WC-Co Coatings Deposited by APS
The effects of plasma intensity and powder particle size on wear and erosion resistance have been evaluated for WC-12 wt.%Co coatings deposited by Air Plasma Spraying. Coatings were deposited from micrometric ...
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Article
Microstructure and Wear Behavior of Conventional and Nanostructured Plasma-Sprayed WC-Co Coatings
WC-12%Co coatings were deposited by atmospheric plasma spraying using conventional and nanostructured powders and two secondary plasmogenous gases (He and H2). Coating microstructure and phase composition were ch...
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Chapter
A Bayesian Solution to Robustly Track Multiple Objects from Visual Data
Different solutions have been proposed for multiple objects tracking based on probabilistic algorithms. In this chapter, the authors propose the use of a single particle filter to track a variable number of ob...
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Article
Failure of last-stage turbine blades in a geothermal power plant
This paper presents an investigation into causes of failure of geothermal steam turbine blades. Several L-0 blades of geothermal steam turbines of 110 MW capacity suffered failures, causing forced outages of t...
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Article
The influence of the ethanol pum** of wheat straw and of the beating of pulp on the resulting paper sheets
This paper reports on the influence of independent variables in the pul** of wheat straw (viz. cooking temperature and time, and ethanol concentration), and of the number of PFI beating revolutions to which ...
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Article
Erratum: Carbon Flow Dynamics in the Pelagic Community of the Sau Reservoir (Catalonia, NE Spain)
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Article
Carbon flow dynamics in the pelagic community of the Sau Reservoir (Catalonia, NE Spain)
Changes in the pelagic community structure and activity along the longitudinal axis of the eutrophic Sau Reservoir (Catalonia, NE Spain) were studied between 1996 and 1999. Samples were taken from several tran...
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Article
Influence of fitness on the integrated neuroendocrine response to aerobic exercise until exhaustion
A group of trained and sedentary men performed an incremental graded exercisetest to exhaustion in order to assess the organic response of the two main stress-activated systems: the sympathetic nervous system ...
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Article
Mobile Robot with Wide Capture Active Laser Sensor and Environment Definition
The sensorial system developed is based on the emission of an infrared beam, recovering the reflected beam and measuring distances to significant points in the environment. This system is able to detect and mo...
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Article
Influence of process variables on the properties of pulp and paper sheets obtained by sulphite pul** of olive tree wood
A central composition design was developed to study the influence of process variables (temperature, pul** time, sulphite concentration, anthraquinone concentration and liquid/solid relation) on the propert...
