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International Journal of Digital Earth 2018年第7期11卷 730-751页

作者： J.L.Gonzalez-Compean Victor J.Sosa-Sosa Arturo Diaz-Perez Jesus Carretero ricardo marcelin-jimenez Cinvestav-Tamulipas Ciudad VictoriaMexico ARCOS Research Group University Carlos IIIMadridSpain UAM Iztapalapa CDMX and associated to InfotecMexico

Earth observation satellites produce large amounts of images/data that not only must be processed and preserved in reliable geospatial platforms but also efficiently disseminated among partners/researchers for creating derivative products through collaborative *** can face up this challenge in a cost-effective manner by using cloud ***,outages and violations of integrity/confidentiality associated to this technology could *** article presents FedIDS,a suite of cloud-based components for building dependable geospatial *** Fed component enables organizations to build shared geospatial data infrastructure through federation of independent cloud resources to withstand outages,whereas IDS avoids violations of integrity/confidentiality of images/data in sharing information and collaboration workflows.A FedIDS prototype,deployed in Spain and Mexico,was evaluated through a study case based on a satellite imagery captured by a Mexican antenna and another based on a satellite imagery of a European observation *** acquisition,storage and sharing of images among users of the federation,the exchange of images between Mexican and Spanish sites and outage scenarios were *** evaluation revealed the feasibility,reliability and efficiency of FedIDS,in comparison with available solutions,in terms of performance,storage consume and integrity/confidentiality when sharing images/data in collaborative scenarios.

关键词： Satellite imagery Earth observation archives spatial data infrastructure collaborative workflows security reliability

Modeling egg development of the pest Clavipalpus ursinus （Coleoptera： Melolonthidae） using a temperature-dependent approach

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Insect Science 2012年第6期19卷 657-665页

作者： Andrea Escobar Rodrigo Gil Carlos ricardo Bojaca Jaime jimenez Facultad de Ciencias Naturales e Ingenieria Departamento de Ciencias Basicas Universidad de Bogota Jorge Tadeo Lozano Bogota Direccion Tecnica de Sanidad Vegetal Instituto Colombiano Agropecuario Bogota Colombia

Predicting the population dynamics of insects in natural conditions is es- sential for their management or preservation, and temperature-dependent development models contribute to achieving this. In this research the effects of temperature and soil moisture content on egg development and hatching of Clavipalpus ursinus （Blanchard） were evaluated. The eggs were exposed to seven temperature treatments with averages of 7.2, 13.0, 15.5, 19.7, 20.6, 22.0 and 25.3~C, in combination with three soil moisture contents of 40%, 60% and 80%. A linear and two non-linear （Lactin and Briere） models were evaluated in order to determine the thermal requirements of this developmental stage. Temperature affected significantly the time of development and egg hatching, while no significant effect was observed for moisture content. Thermal requirements were set as： 7.2℃ for lower developmental threshold, 20.6℃ for optimum developmental threshold, 25.3℃ for maximum temperature and 344.83 degree-days for the thermal constant. The linear model described satisfactorily egg development at intermediate temperatures; nev- ertheless, a slightly better fit of the observed data was obtained with the Lactin model. Egg development took place inside a narrow range of temperatures. Consequently, an increment of soil temperature could generate a negative impact on the population size of this species or changes in its biological parameters.

关键词： egg development pests soil moisture thermal requirements

Effectiveness of statins *** on reducing postprandial hypertriglyceridemia in dyslipidemic population:A systematic review and network meta-analysis

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Journal of Sport and Health Science 2022年第5期11卷 567-577页

作者： Laura Alvarez-jimenez Alfonso Moreno-Cabanas Miguel Ramirez-jimenez Felix Morales-Palomo Juan FOrtega ricardo Mora-Rodriguez Exercise Physiology Lab at Toledo Sports Science DepartmentUniversity of Castilla-La ManchaToledo 45004Spain

Background:Individuals at risk of suffering cardiovascular disease(CVD) present with larger increases in blood trigyceride(TG) concentration after a high-fat meal than do healthy *** postprandial hypertriglyceride levels are an independent risk factor for *** of statins and a bout of prolonged exercise are both effective in lowering postprandial hypertriglyceride *** aimed to evaluate the comparative effectiveness of statins vs.a bout of aerobic exercise in reducing fasting and postprandial TG(PPTG) concentrations in indiv、duals at high nsk of developing ***:Thirty-seven sltudies from a systematic literature search of the PubMed,EMBASE,and Cochrane databases were included in this *** selected studies conducted trials involving statin therapy(n=20) or a bout of aerobic exercise(n=19) and measured their impact on PPTG levels as the *** studies analyzed both treatments and were included in *** meta-analysis was constructed using a random-effects model to calculate the mean difference(MD).The Student t test was used to compare the data sets for statins ***:Overall,statin and exercise interventions showed similar reductions in PPTG levels,with an MD of-0.65 mmol/L for statins(95% confidence interval(95%CI):-0.54 to-0.77;p <0.001) and-0.46 mmol/L for exercise(95%CI:-0.21 to-0.71;p <0.01).However,statins lowered fasting TG levels more than exercise(MD=-1.54 mmol/L,95%CI:-2.25 to-0.83;p=0.009).Conclusion:Although aerobic exercise is effective in lowering blood TG levels,statins seem to be more efficient,especially in the fasted state.A combination of exercise and statins might reveal a valuable approach to the treatment and prevention of *** studies are required to determine the underlying mechanisms and the possible additive effects of these interventions.

关键词： Aerobic exercise Cardiovascular disease Hydroxymethylglutaryl-CoA reductase inhibitor Meta-analysis Metabolic syndrome

Engineering Geological Investigations for the Foundations of Large Structures-Examples of a Concrete Dam and a long Bridge in Portugal

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Journal of Mountain Science 2011年第2期8卷 296-306页

作者： ricardo OLIVEIRA COBA and New University of Lisbon Portugal

The safety of large structures requires adequate foundations, which implies a good knowledge of the geological and geotechnical conditions of the respective ground. In general, that is only possible through engineering geological studies which include proper site investigation techniques, adapted to the nature of the ground (rock mass or soil) and to the associated engineering problems. The paper illustrates the studies carried out for the design of the foundations of Ribeiradio 76 m high concrete gravity dam in a difficult rock mass and of Vasco da Gama Bridge, 13 km long, crossing the Tagus River in Lisbon, Portugal, through piles 75 m deep.

关键词： Geological investigation Foundations Concrete dam Bridge

Deduction and Validation of an Eulerian-Eulerian Model for Turbulent Dilute Two-Phase Flows by Means of the Phase Indicator Function-Disperse Elements Probability Density Function

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Chinese Journal of Chemical Engineering 2000年第3期8卷 189-202页

作者： Santiago Laín ricardo Aliod MVT-UST Fachbereich Ingenieurwissenschaften Martin-Luther-UniversitatHalle-WittenbergD-06099Halle(Saale)GermanyFluid Mechanica DepartmentE.U.Politecnica de Huesca.University of ZaragozaCarretera Zaragoza km.6722071 HuescaSpain

A statistical formalism overcoming some conceptual and practical difficulties arising in existing two-phase flow (2PHF) mathematical modelling has been applied to propose a model for dilute 2PHF turbulent Hows. Phase interaction terms with a clear physical meaning enter the equations and the formalism provides some guidelines for the avoidance of closure assumptions or the rational approximation of these terms. Continuous phase averaged continuity, momentum, turbulent kinetic energy and turbulence dissipation rate equations have been rigorously and systematically obtained in a single step. These equations display a structure similar to that for single-phase flows. It is also assumed that dispersed phase dynamics is well described by a probability density function (pdf) equation and Eulerian continuity, momentum and fluctuating kinetic energy equations for the dispersed phase are deduced. An extension of the standard k-e turbulence model for the continuous phase is used. A gradient transport model is adopted for the dispersed phase fluctuating fluxes of momentum and kinetic energy at the non-colliding, large inertia limit. This model is then used to predict the behaviour of three axisymmetric turbulent jets of air laden with solid particles varying in size and concentration. Qualitative and quantitative numerical predictions compare reasonably well with the three different sets of experimental results, studying the influence of particle size, loading ratio and flow confinement velocity.

关键词： two-phase flow turbulence phase indicator function pdf ensemble average jet

Comprehensive Euler/Lagrange modelling including particle erosion for confined gas-solid flows

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Particuology 2024年第1期84卷 209-235页

作者： Guiherme A.Novelletto ricardo Martin Sommerfeld Multiphase Flow Systems Institute of Process EngineeringOtto-von-Guericke-University MagdeburgHoher Weg 7b06120Halle(Saale)Germany

The present research aims to assess the capability of a comprehensive Euler/Lagrange approach for predicting gas-solid flows and the associated solid particle *** open-source code OpenFOAM®4.1 was used to carry out the numerical simulations,where the standard Lagrangian libraries were substantially extended to account for all necessary *** are tracked considering both translational and rotational motion as well as all relevant forces,such as gravity/buoyancy,drag and transverse lift due to shear and particle *** tracking time step was dynamically adapted ac-cording to the locally relevant time scales,which drastically reduces computational *** approaches are adopted to model particle turbulent dispersion,particle collisions with rough walls and particle-particle *** solid particle erosion models,available in the literature,were considered to estimate pipe bend *** study cases are provided to validate the adopted nu-merical approach and erosion models *** first case intends to evaluate the ability of the extended CFD code to predict the behaviour of gas-solid flows in pneumatic conveying *** goal is achieved by comparing the numerical results with the experimental data obtained by Huber(1997)and Huber and Sommerfeld(1994,1998)in a pneumatic conveying ***,the importance of considering inter-particle collisions and surface roughness for predicting particle velocity,mass flux and mean diameter distributions in gas-solid flows is *** second and third case intend to evaluate the ability of the erosion models in estimating bend erosion in diluted gas-solid *** erosion data obtained experimentally by Mazumder et al.(2008)and Solnordal et al.(2015)in very dilut pneumatic conveying systems is used for validating the numerical results,neglecting now inter-particle collisions and two-way *** a comprehensive analysis of the different influential properti

关键词： Pneumatic conveying Pipe bend Numerical calculation(CFD) Euler/Lagrange approach Erosion models Wall roughness

Synthesis identification analysis for closed loop system

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Journal of Systems Engineering and Electronics 2021年第4期32卷 939-946页

作者： WANG Jianhong ricardo A.Ramirez-Mendoza School of Electronic Engineering and Automation Jiangxi University of Science and TechnologyGanzhou 343100China School of Engineering and Sciences Tecnologico de MonterreyMonterrey 64849Mexico

The existing theories for closed loop identification with the linear feedback controller are very *** apply the existed theories directly in the control field,we propose a new idea about replacing the original unknown and nonlinear feedback controller with one approximated linear controller,while guaranteeing the equivalent property for the obtained closed loop *** on some statistical correlation functions,one condition is derived to show the equivalent property between the approximated linear controller and the original nonlinear *** detailed explicit form,corresponding to the approximated linear controller,is also ***,to give a complete analysis for closed loop identification,the cost function is rewritten as one extended expression,being convenient to *** spectral estimation is introduced to identify the unknown plant in the closed loop ***,the proposed theories are verified by one simulation example.

关键词： synthesis analysis closed loop system simplified function equivalent controller

Desperately seeking hepatitis C virus

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World Journal of Gastroenterology 2008年第18期14卷 2946-2947页

作者： ricardo Moreno-Otero Hepato-Gastroenterology Service and Ciberehd Hospital Universitario de La Princesa Autonomous University of Madrid Madrid 28006 Spain

Spanish investigators described recently the so-called occult hepatitis C virus (HCV) infection, emphasizing the detection of genomic and antigenomic HCV RNA strands in liver and peripheral blood mononuclear cells. Therefore, the persistence of viral replication in occult HCV infection should be considered as a putative source of infection among family members and patients undergoing invasive procedures, transfusion or transplantation. Additionally, the most worrisome finding is that an occult HCV infection may persist in patients with sustained virological response.

关键词： Occult hepatitis C Occult hepatitis C virus infection Hepatitis C virus RNA Peginterferon Ribavirin

A comprehensive review on biomarkers associated with painful temporomandibular disorders

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International Journal of Oral Science 2021年第3期13卷 230-242页

作者： Mayank Shrivastava ricardo Battaglino Liang Ye Department of Diagnostic and Biological Sciences School of DentistryUniversity of MinnesotaMinneapolisMNUSA Department of Rehabilitation Medicine Medical SchoolUniversity of MinnesotaMinneapolisMNUSA

Pain of the orofacial region is the primary complaint for which patients seek *** all the orofacial pain conditions,one condition that possess a significant global health problem is temporomandibular disorder(TMD).Patients with TMD typically frequently complaints of pain as a *** can occur due to complex interplay between peripheral and central sensitization,endogenous modulatory pathways,and cortical *** diagnosis of TMD pain a descriptive history,clinical assessment,and imaging is ***,due to the complex nature of pain an additional step is needed to render a definitive TMD *** this review we explicate the role of different biomarkers involved in painful *** painful TMD conditions,the role of biomarkers is still *** believe that the identification of biomarkers associated with painful TMD may stimulate researchers and clinician to understand the mechanism underlying the pathogenesis of TMD and help them in developing newer methods for the diagnosis and management of ***,to understand the potential relationship of biomarkers,and painful TMD we categorize the biomarkers as molecular biomarkers,neuroimaging biomarkers and sensory *** addition,we will briefly discuss pain genetics and the role of potential microRNA(miRNA)involved in TMD pain.

关键词： diagnosis endogenous facial

Neuroprotective therapy for retinal neurodegenerative diseases by stem cell secretome

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Neural Regeneration Research 2021年第1期16卷 117-118页

作者： ricardo Usategui-Martín Ivan Fernandez-Bueno Instituto Universitario de Oftalmobiología Aplicada(IOBA) Retina GroupUniversidad de ValladolidValladolidSpain Centro en Red de Medicina Regenerativa y Terapia Celular de Castilla y León Red Temática de Investigación Cooperativa en SaludOftaredInstituto de Salud Carlos IIIValladolidSpain

Retinal neurodegenerative diseases like agerelated macular degeneration,glaucoma,diabetic retinopathy or retinitis pigmentosa are the most frequent causes of incurable low vision and blindness *** had been estimated that the prevalence of these diseases varies between 1/750 and 1/5000 depending on the region,the level of consanguinity or ethnicity(Na et al.,2017).The functional and structural complexity of the retina makes it susceptible to multiple types of pathogenic damage.

关键词： diseases protective degenerative