Search Results - "Valdés, Francisco J."

Analyzing traffic conflicts and the behavior of motorcyclists at unsignalized three-legged and four-legged intersections in Cartagena, Colombia by Ospina-Mateus, Holman, Quintana Jiménez, Leonardo, López-Valdés, Francisco J.

“…•Motorcycles exhibit a significantly higher incidence of severe traffic conflicts at intersections than other motorized vehicles.•Intersections with traffic…”
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Upscaling Reactive Transport Under Hydrodynamic Slip Conditions in Homogeneous Porous Media by Valdés‐Parada, Francisco J., Lasseux, Didier, Whitaker, Stephen

“…Reactive transport of a dilute species in a Newtonian fluid saturating a homogeneous porous medium for slip flow is analyzed in this work. Incompressible…”
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The rider behavior questionnaire to explore associations of motorcycle taxi crashes in Cartagena (Colombia) by Ospina-Mateus, Holman, Jiménez, Leonardo Quintana, López-Valdés, Francisco J.

“…This study aimed to identify the association between behavioral factors and crashes of motorcycle taxi riders using the Motorcycle Rider Behavior Questionnaire…”
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Assessment of in situ chest deflection of post mortem human subjects (PMHS) and personalized human body models (HBM) in nearside oblique impacts by Piqueras, Ana, Pipkorn, Bengt, Iraeus, Johan, Maza-Frechín, Mario, López-Valdés, Francisco J.

“…The present study has three objectives: First, to analyze the chest deflection measured in nearside oblique tests performed with three post mortem human…”
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Acute Symptomatic Free-Floating Thrombus in the Innominate Artery, a Case Series by Torrealba, Jose Ignacio, Valdés, Francisco J, Garrido, Luis, Mertens, Renato, Mariné, Leopoldo, Bergoeing, Michel, Vargas, Francisco

“…Background Innominate artery embolism may result in upper extremity ischemia or stroke. A free-floating thrombus originating from the IA is an unusual and…”
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The Influence of Headform/Helmet Friction on Head Impact Biomechanics in Oblique Impacts at Different Tangential Velocities by Juste-Lorente, Óscar, Maza, Mario, Piccand, Mathieu, López-Valdés, Francisco J.

“…Oblique impacts of the helmet against the ground are the most frequent scenarios in real-world motorcycle crashes. The combination of two factors that largely…”
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Analysis of the spinal 3D motion of postmortem human surrogates in nearside oblique impacts by Piqueras, Ana, Pipkorn, Bengt, Iraeus, Johan, Lorente, Ana I, Juste-Lorente, Óscar, Maza, Mario, López-Valdés, Francisco J

“…Objective: The objective of this study is to analyze the 6 degrees of freedom (DOF) motion of the spine using the finite helical axis (FHA) in three postmortem…”
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Assessment of the sensitivity of thoracic injury criteria to subject-specific characteristics using human body models by Piqueras, Ana, Iraeus, Johan, Pipkorn, Bengt, López-Valdés, Francisco J

“…Chest deformation has been proposed as the best predictor of thoracic injury risk in frontal impacts. Finite Element Human Body Models (FE-HBM) can enhance the…”
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Effects of Including a Penetration Test in Motorcyclist Helmet Standards: Influence on Helmet Stiffness and Impact Performance by Juste-Lorente, Óscar, Maza, Mario, Piqueras, Ana, Lorente, Ana I., López-Valdés, Francisco J.

“…Regulation ECE-22.05/06 does not require a helmet penetration test. Penetration testing is controversial since it has been shown that it may cause the helmet…”
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Stenting of innominate vein compression syndrome by Marchesini, Michelle, Vargas, J. Francisco, Bergoeing, Michel P., Marine, Leopoldo A., Torrealba, Jose I., Valdés, Francisco J., Mertens, Renato A.

“…We report the case of a 60-year-old woman who sought medical attention for left cervical and supraclavicular pain and swelling. Previous computed tomography,…”
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Assessment of an innovative seat belt with independent control of the shoulder and lap portions using THOR tests, the THUMS model, and PMHS tests by Pipkorn, Bengt, López-Valdés, Francisco J., Juste-Lorente, Oscar, Insausti, Ricardo, Lundgren, Christer, Sunnevång, Cecilia

“…Objectives: The objective of this study was to determine the potential chest injury benefits and influence on occupant kinematics of a belt system with…”
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Special Issue: Current Trends in Impact and Injury Biomechanics by Panzer, Matthew B, López Valdés, Francisco J, Morrison, Barclay

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A New Dubinin−Radushkevich-Modified BET Combined Equation To Correlate with a Single Procedure the Full Relative Pressure Range of 77 K N2 Isotherms of Solids with Different Textural Properties by Marcilla, Antonio, Gómez-Siurana, Amparo, Valdés, Francisco J

“…In this work, a model capable of adequately correlating and reproducing experimental adsorption isotherm data in the overall relative pressure range is…”
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Comparison of the absorption efficiency of α- and β-cryptoxanthin in female Wistar rats by Breithaupt, Dietmar E., Yahia, Elhadi M., Velázquez, Francisco J. Valdés

“…Xanthophylls, such as lutein and zeaxanthin, have received increasing interest in recent years because of positive correlations between their consumption and…”
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Theory and Applications of Macroscale Models in Porous Media by Battiato, Ilenia, Ferrero V, Peter T., O’ Malley, Daniel, Miller, Cass T., Takhar, Pawan S., Valdés-Parada, Francisco J., Wood, Brian D.

“…Systems dominated by heterogeneity over a multiplicity of scales, like porous media, still challenge our modeling efforts. The presence of disparate length-…”
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Volume averaging: Local and nonlocal closures using a Green’s function approach by Wood, Brian D., Valdés-Parada, Francisco J.

“…► Volume average with closure is developed in the context of Green’s functions. ► New results suggest how nonlocal transport equations can be developed via…”
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Velocity and stress jump conditions between a porous medium and a fluid by Valdés-Parada, Francisco J., Aguilar-Madera, Carlos G., Ochoa-Tapia, J. Alberto, Goyeau, Benoît

“…•Closure problems were derived to predict the effective coefficients for both stress and velocity jump conditions.•The solution of the closure problem does not…”
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Characterization of microalgal species through TGA/FTIR analysis: Application to nannochloropsis sp by Marcilla, Antonio, Gómez-Siurana, Amparo, Gomis, Cristian, Chápuli, Eloy, Catalá, Mª Carmen, Valdés, Francisco J.

“…In this work, the on-line combination of Thermogravimetric Analysis (TGA) and Fourier Transform Infrared Spectrometry (FTIR) has been applied to study the…”
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Mixing in confined stratified aquifers by Bolster, Diogo, Valdés-Parada, Francisco J., LeBorgne, Tanguy, Dentz, Marco, Carrera, Jesus

“…Spatial variability in a flow field leads to spreading of a tracer plume. The effect of microdispersion is to smooth concentration gradients that exist in the…”
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Macroscopic Model for Passive Mass Dispersion in Porous Media Including Knudsen and Diffusive Slip Effects by Valdés-Parada, Francisco J., Lasseux, Didier

“…In this work, a macroscopic model for incompressible and Newtonian gas flow coupled to Fickian and advective transport of a passive solute in rigid and…”
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