Artículos Científicos

2012-12-12

Diago Santamaria, Maria Paz. Correa Farias, Christian. Millan, Borja. Valero Ubierna, Constantino. Barreiro Elorza, Pilar. Tardaguila Laso, Javier.

Grapevine Yield and Leaf Area Estimation Using Supervised Classification Methodology on RGB Images Taken under Field Conditions
The aim of this research was to implement a methodology through the generation of a supervised classifier based on the Mahalanobis distance to charact ... Ver más

2012-03

Jouan-Rimbaud Bouveresse, D.. Moya Gonzalez, Adolfo. Ammari, F.. Rutledge, Douglas N..

Two Novel Methods For The Determination Of The Number Of Components In Independent Components Analysis Models
Independent Components Analysis is a Blind Source Separation method that aims to find the pure source signals mixed together in unknown proportions in ... Ver más

2012-01

Lunadei, Loredana. Diezma Iglesias, Belen. Lleó García, Lourdes. Ruiz García, Luis. Cantalapiedra, Susana. Ruiz Altisent, Margarita.

Monitoring of fresh-cut spinach leaves through multispectral vision and sensory evaluation
This paper reports the development of image processing methods for the detection of superficial changes related to quality deterioration in ready-to-u ... Ver más

2011-09-14

Correa Farias, Christian. Reyes, Fernando. Esquivel, Wilson. Ortega, Rodrigo.

Development of an Automated Management System for the Traceability of Spraying in Fruit Orchads
A system for managing and monitoring agricultural labors at farm level was developed and tested in an agrochemical application. The system is constitu ... Ver más

2011-09

Correa Hernando, Eva Cristina. Arranz Saiz, Francisco Javier. Diezma Iglesias, Belen. Juliá, Eduardo. Robla Villalba, José Ignacio. Ruiz García, Luis. García-Hierro, Javier. Barreiro Elorza, Pilar.

Development of model based sensors for the supervision of a solar dryer
Solar dryers are increasingly used in developing countries as an alternative to drying in open air, however the inherent variability of the drying con ... Ver más

2011-06

Lleó García, Lourdes. Roger, Jean-Michel. Herrero Langreo, Ana. Diezma Iglesias, Belen. Barreiro Elorza, Pilar.

Comparison of multispectral indexes extracted from hyperspectral images for the assessment of fruit ripening
The present research is focused on the application of artificial vision to assess the ripening of red skinned soft-flesh peach (‘Richlady’). Artif ... Ver más

2011-06

Lunadei, Loredana. Galleguillos, Pamela. Diezma Iglesias, Belen. Lleó García, Lourdes. Ruiz García, Luis.

A multispectral vision system to evaluate enzymatic browning in fresh-cut apple slices
The main objective of this study was to develop a vision system that is able to classify fresh-cut apple slices according to the development of enzyma ... Ver más

2011-03

Herrero Langreo, Ana. Lunadei, Loredana. Lleó García, Lourdes. Diezma Iglesias, Belen. Ruiz Altisent, Margarita.

Multispectral Vision for Monitoring Peach Ripeness
The main objective of this research was to develop an automatic procedure able to classify Rich Lady commercial peaches according to their ripenes ... Ver más

2011

Chassagne-Berces, Sophie. Leitner, Michael. Melado Herreros, Angela. Barreiro Elorza, Pilar. Correa Hernando, Eva Cristina. Blank, Imre. Gumy, Jean Claude. Chanvrier, Helene.

Effect of fibers and whole grain content on quality attributes
Incorporation of fiber in cereals may lead to quality issues, thus decreasing consumer acceptance. This is partially due to deterioration of the micro ... Ver más

2011

Moya Gonzalez, Adolfo. Diezma Iglesias, Belen. Barreiro Elorza, Pilar. Ortiz-Cañavate Puig-Mauri, Jaime. Valero Ubierna, Constantino.

El análisis de actividades en el entorno virtual de aprendizaje de la UPM como herramienta previa a la generación y distribución de objetos de aprendizaje estándar (SCORMS)
El presente trabajo pretende aportar un mejor conocimiento del uso de recursos en entornos virtuales de aprendizaje (EVA) para su posterior empleo e ... Ver más

2010-08

Alonso Rodrigo, Gustavo. Meseguer Ruiz, José. Sanz Andres, Angel Pedro. Valero Sánchez, Eusebio.

On the galloping instability of two-dimensional bodies having elliptical cross sections.
Galloping, also known as Den Hartog instability, is the large amplitude, low frequency oscillation of a structure in the direction transverse to the m ... Ver más

2010-03

Garcia Ceca Valero, J.L.. Gonzalez Adrados, Jose Ramon. Gonzalez Hernandez, F..

El control del tratamiento superficial de los tapones de corcho
Es bien sabido que el corcho como material posee una serie de características que le hacen susceptible de múltiples aplicaciones industriales (li ... Ver más

2010-01

Mínguez Torres, Emilio. Florido, Ricardo. Rodríguez, Rafael. Gil, J.M.. Garcia Rubiano, Jesus. Mendoza, M.A.. Suarez, D.. Martel, Pablo.

Opacity calculation for target physics using the ABAKO/RAPCAL code
Radiative properties of hot dense plasmas remain a subject of current interest since they play an important role in inertial confinement fusion (ICF) ... Ver más

2010-01

Otero García, Jaime. Navarro Valero, Francisco Jose. Martin, Carlos. Cuadrado Ebrero, Maria Luisa. Corcuera Labrado, Maria Isabel.

A three dimensional calving model: numerical experiments on Johnsons Glacier, Livingston Island, Antarctica.
Calving from tidewater glaciers and ice shelves accounts for around half the mass loss from both polar ice sheets, yet the process is not well represe ... Ver más

2010

Ruiz Altisent, Margarita. Ruiz García, Luis. Moreda Cantero, Guillermo P.. Lu, Renfu. Hernández Sánchez, Natalia. Correa Hernando, Eva Cristina. Diezma Iglesias, Belen. García Ramos, Francisco Javier.

Sensors for product characterization and quality of specialty crops—A review
This review covers developments in non-invasive techniques for quality analysis and inspection of specialty crops, mainly fresh fruits and vegetables ... Ver más

2010

Ruiz García, Luis. Barreiro Elorza, Pilar. Robla Villalba, José Ignacio. Lunadei, Loredana.

Testing ZigBee Motes for Monitoring Refrigerated Vegetable Transportation under Real Conditions
Quality control and monitoring of perishable goods during transportation and delivery services is an increasing concern for producers, suppliers, tran ... Ver más

2009-09

Molina Delgado, Diana. Alegre, S.. Barreiro Elorza, Pilar. Valero Ubierna, Constantino. Ruiz Altisent, Margarita. Recasens, I..

Addressing potential sources of variation in several non-destructive techniques for measuring firmness in apples
Measurements of firmness have traditionally been carried out according to the Magness Taylor (MT) procedure; using a texture analyser or penetrometer ... Ver más

2009-08

Artieda Trigueros, Jorge. Sebastian y Zuñiga, Jose Maria. Campoy Cervera, Pascual. Correa Caicedo, Juan Fernando. Mondragon Bernal, Ivan Fernando. Martínez Luna, Carol Viviana. Olivares Méndez, Miguel Ángel.

Visual 3-D SLAM from UAVs
The aim of the paper is to present, test and discuss the implementation of Visual SLAM techniques to images taken from Unmanned Aerial Vehicles (UAVs) ... Ver más

2009-08

Lorenzo Esteban, Vicente. Diaz Lantada, Andres. Lafont Morgado, Pilar. Lorenzo Yustos, Héctor. Fonseca Valero, Carmen. Acosta, J..

Physical ageing of a PU based shape memory polymer: influence on their applicability to the development of medical devices.
The variation in the properties of polymeric materials through ageing has considerable implications, since it affects the performance of any associate ... Ver más

2009-05

Moreda Cantero, Guillermo P.. Ortiz-Cañavate Puig-Mauri, Jaime. García Ramos, Francisco Javier. Ruiz Altisent, Margarita.

Non-destructive technologies for fruit and vegetable size determination - a review
Here, we review different methods for non-destructive horticultural produce size determination, focusing on electronic technologies capable of measuri ... Ver más

2009-04

Martin, Carlos. Hindmarsh, Richard C.A.. Navarro Valero, Francisco Jose.

On the effects of divide migration, along-ridge flow and basal sliding on isochrones near an ice divide
Radar layer geometry in divide areas is strongly influenced by the operation of the Raymond effect, which causes upwarping of the layers as a conseque ... Ver más

2009

Callejo González, Maria Jesús. Gonzalez Chamorro, M. Carmen. Chaya Romero, Carolina. Rodríguez Badiola, Guillermo. Diaz Barcos, Virginia. Correa Hernando, Eva Cristina.

Nuevas metodologías con un enfoque interdisciplinar en la docencia de asignaturas relacionadas con la Tecnología de Alimentos
El objeto de este proyecto es compartir metodologías docentes y técnicas de evaluación desde un enfoque pluridisciplinar en la Universidad Polit ... Ver más

2009

Lleó García, Lourdes. Barreiro Elorza, Pilar. Ruiz Altisent, Margarita. Herrero Langreo, Ana.

Multispectral images of peach related to firmness and maturity at harvest
wo multispectral maturity classifications for red soft-flesh peaches (‘Kingcrest’, ‘Rubyrich’ and ‘Richlady’ n = 260) are proposed and com ... Ver más

2009

Ruiz García, Luis. Lunadei, Loredana. Barreiro Elorza, Pilar. Robla Villalba, José Ignacio.

A review of wireless sensor technologies and applications in agriculture and food industry: state of the art and current trends
The aim of the present paper is to review the technical and scientific state of the art of wireless sensor technologies and standards for wireless com ... Ver más

2009

Slaughter, David. Ruiz Altisent, Margarita. Thompson, J.F.. Chen, P.. Sarig, Y.. Anderson, M..

A Handheld low-mass, impact instrument to measure nondestructive firmness of fruit
A portable, handheld impact firmness sensor was designed for nondestructive measurement of fruit firmness while the fruit remain attached to the tree ... Ver más

2008-08

Riquelme Torres, María Teresa. Barreiro Elorza, Pilar. Ruiz Altisent, Margarita. Barreiro Elorza, Pilar. Valero Ubierna, Constantino.

Olive classification according to external damage using image analysis.
The external appearance of an olive’s skin is the most decisive factor in determining its quality as a fruit. This work tries to establish a hierar ... Ver más

2008-03

Campoy Cervera, Pascual. Correa Caicedo, Juan Fernando. Mondragon Bernal, Ivan Fernando. Martínez Luna, Carol Viviana. Olivares Méndez, Miguel Ángel. Mejias Alvarez, Luis. Artieda Trigueros, Jorge.

Computer Vision Onboard UAVs for Civilian Tasks
Computer visión is much more than a technique to sense and recover environmental information from an UAV. It should play a main role regarding UAVs' ... Ver más

2008-02

Barreiro Elorza, Pilar. Zheng, Cui. Sun, Da-Wen. Hernández Sánchez, Natalia. Pérez-Sánchez, J.M.. Ruiz Cabello Osuna, Jesus Maria.

Non-destructive seed detection in mandarins: comparison of automatic threshold methods FLASH and COMSPIRA MRIs
Here, we review different methods for non-destructive horticultural produce size determination, focusing on electronic technologies capable of measuri ... Ver más

2008

Martel, Carlos. Valero Sánchez, Eusebio. Vega de Prada, José Manuel.

Stabilization of Tollmien-Schlichting Waves by Mode Interaction
Decreasing skin friction in boundary layers attached to aircraft wings can have an impact in both fuel consumption and pollutant production, which are ... Ver más

2007-06

Hernández Sánchez, Natalia. Hills, B.P.. Barreiro Elorza, Pilar. Marigheto, N..

An NMR study on internal browning in pears
Internal browning in pears (Pyrus communis L. cv. Blanquilla) has been studied by NMR and MRI in order to develop a non-destructive procedure for on-l ... Ver más

2007-06

Valero Ubierna, Constantino. Crisosto, Carlos H.. Slaughter, David.

Relationship between nondestructive firmness measurements and commercially important ripening fruit stages for peaches, nectarines and plums
Fruit firmness measurement is a good way to monitor fruit softening and to predict bruising damage during harvest and postharvest handling. Ripening p ... Ver más

2007

Crisosto, Carlos H.. Valero Ubierna, Constantino. Slaughter, David.

Predicting pitting damage during processing in California clingstone peaches using color and firmness measurements
Nondestructive and destructive measures of color and firmness were studied to determine the feasibility of predicting the level of damage to clingston ... Ver más

2007

Diezma Iglesias, Belen. Garcia Rebollar, Paloma. Ruiz Altisent, Margarita. Alvarez Carro, Cesar.

Instrumental measurements of the texture of hard-boiled egg yolks enriched with different levéis of conjugated linoleic acid
There is increased interest in enhancing the conjugated linoleic acid (CLA) content of food products because of its potential health benefits. Inclusi ... Ver más

2006-12

Diezma Iglesias, Belen. Valero Ubierna, Constantino. García Ramos, Francisco Javier. Ruiz Altisent, Margarita.

Monitoring of firmness evolution of peaches during storage by combining acoustic and impact methods
Firmness is a very important quality property in peach. The storage of peach affects its subsequent softening process and shelf life. The temperature ... Ver más

2006-12

Hernández Sánchez, Natalia. Barreiro Elorza, Pilar. Ruiz Cabello Osuna, Jesus Maria.

On-line identification of seeds in mandarins with magnetic resonance imaging
Mandarins have been inspected using magnetic resonance imaging (MRI) in order to detect the presence of seeds. To enhance contrast between seeds and p ... Ver más

2006

Diezma Iglesias, Belen. García Ramos, Francisco Javier. Boné Garasa, Antonio.

Clasificación y criterios elección de los aperos para trabajo de suelo
En este artículo se hace un análisis de los distintos aperos para la labor del suelo, señalando las principales ventajes e inconvenientes de los mi ... Ver más

2005-08

Hernández Sánchez, Natalia. Barreiro Elorza, Pilar. Ruiz Altisent, Margarita. Ruiz Cabello Osuna, Jesus Maria. Fernandez Valle, M. Encarnacion.

Detection of seeds in citrus using MRI under motion conditions and improvement with motion correction
Magnetic resonance imaging (MRI) is studied under an online strategy. Axial FLASH images (780 ms acquisition time) have been analyzed to identify seed ... Ver más

2005-08

Valero Ubierna, Constantino. Barreiro Elorza, Pilar. Ruiz Altisent, Margarita. Cubeddu, Rinaldo. Pifferi, Antonio. Taroni, Paola. Torricelli, Alessandro. Valentini, Gianluca. Johnson, David. Dover, Colin.

Mealiness detection in apples using time resolved reflectance spectroscopy
Mealiness is a textural attribute related to internal fruit disorder that is characterized by the combination of abnormal softness of the fruit and ab ... Ver más

2005

Diezma Iglesias, Belen. Ruiz Altisent, Margarita. Jancsók, P..

Vibrational analysis of seedless watermelons: use in the detection of internal hollows
The internal quality of fruit can be non-invasively tested using systems based on vibrational characteristics. In this work, acoustic impulses were us ... Ver más

2005

García Ramos, Francisco Javier. Valero Ubierna, Constantino. Homer, I.. Ortiz-Cañavate Puig-Mauri, Jaime. Ruiz Altisent, Margarita.

Non destructive fruit firmness sensors A review
The development of sensors to measure fruit internal quality variables is one of the challenges of post-harvest technology. Several variables can curr ... Ver más

2004-09

Hernández Sánchez, Natalia. Barreiro Elorza, Pilar. Ruiz Altisent, Margarita. Ruiz Cabello Osuna, Jesus Maria. Fernandez Valle, M. Encarnacion.

Detection of freeze injury in oranges using magnetic resonance imaging under motion conditions
Magnetic resonance imaging (MRI) is applied for on-line inspection of fruits. The aim of this work is to address the applicability of MRI for freeze i ... Ver más

2004-07

Valero Ubierna, Constantino. Ruiz Altisent, Margarita. Cubeddu, Rinaldo. Pifferi, Antonio. Taroni, Paola. Torricelli, Alessandro. Valentini, Gianluca. Johnson, David. Dover, Colin.

Selection Models for the Internal Quality of Fruit, based on Time Domain Laser Reflectance Spectroscopy
Time domain laser reflectance spectroscopy (TRS) was applied for the first time to evaluate internal fruit quality. This technique, known in medicine- ... Ver más

2004-06

Diezma Iglesias, Belen. Ruiz Altisent, Margarita. Barreiro Elorza, Pilar.

Detection of internal quality in seedless watermelon by acoustic impulse response
Recent commercialisation of seedless watermelon varieties relies on the guarantee of a high quality product. Several internal defects may deteriorate ... Ver más

2004-05

Gimeno, Benjamín. Bermejo, V.. Sanz, J.. Torre Llorente, Daniel de la. Gil, J.M..

Assessment of the effects of ozone exposure and plant competition on the reproductive ability of three therophytic clover species from Iberian pastures
Ozone (O3) phytototoxicity has been reported on a wide range of crops and wild Central European plantspecies, however no information has been provided ... Ver más

2004

Barreiro Elorza, Pilar. Henche, Laura. Ruiz Altisent, Margarita. Hernández Sánchez, Natalia. Moya Gonzalez, Adolfo.

Multivariate diagnosis of the variability of NIR spectrometers under industrial applications
The transfer of NIR spectroscopy to industry relies on the possibility of real time identification of abnormal spectra as well as uncontrolled sources ... Ver más

2004

Barreiro Elorza, Pilar. Ruiz Altisent, Margarita. Moya Gonzalez, Adolfo. Agulheiro, A.C.. García Ramos, Francisco Javier.

Segregation of soft olives using Durofel and on-line rebound
Traditional table olive fermentation processing produces variable proportions of defective olives that must be eliminated before final packaging. Defe ... Ver más

2004

Echeverría, Gemma. Correa Hernando, Eva Cristina. Ruiz Altisent, Margarita. Graell, Jordi. Puy, Jaume. López, Luisa.

Characterization of Fuji Apples from Different Harvest Dates and Storage Conditions from Measurements of Volatiles by Gas Chromatography and Electronic Nose
Volatile compounds in Fuji apples harvested at two different maturities were measured at harvest and after 5 and 7 months of cold storage (1 °C) in ... Ver más

2004

García Ramos, Francisco Javier. Valero Ubierna, Constantino. Ruiz Altisent, Margarita. Ortiz-Cañavate Puig-Mauri, Jaime.

Analysis of the mechanical aggressiveness of three orange packing systems: packing table, box filler and net filler
Three different types of orange packing systems (packing table, box filler, and net filler) were analysed using an instrumented sphere IS 100 (7 cm . ... Ver más

2004

Valero Ubierna, Constantino. Ruiz Altisent, Margarita. Cubeddu, Rinaldo. Pifferi, Antonio. Taroni, Paola. Torricelli, Alessandro. Valentini, Gianluca. Johnson, David. Dover, Colin.

Detection of internal quality in kiwi with time-domain diffuse reflectance spectroscopy
Time-domain diffuse reflectance spectroscopy (TRS), a medical sensing technique, was used to evaluate internal kiwi fruit quality. The application of ... Ver más

2003-10

Bermejo, V.. Gimeno, Benjamín. Sanz, J.. Torre Llorente, Daniel de la. Gil, J.M..

Assessment of the ozone sensitivity of 22 native plant species from mediterranean annual pastures based on visible injury
Ozone (O3) phytototoxicity has been reported on a wide range of plantspecies, inducing the appearance of specific foliar injury or increasing leaf sen ... Ver más

2002-09

Barreiro Elorza, Pilar. Moya Gonzalez, Adolfo. Correa Hernando, Eva Cristina. Ruiz Altisent, Margarita. Fernandez Valle, M. Encarnacion. Peirs, A.. Wright, K.W.. Hills, B.P..

Prospects for the rapid detection of mealiness in apples by nondestructive NMR relaxometry
The potential of nuclear magnetic resonance (NMR) relaxometry for quantitative evaluation of apple mealiness has been investigated. The degree of "mea ... Ver más