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Design optimization of multilayer perceptron neural network by ant colony optimization applied to engine emissions data

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Science China(Technological Sciences) 2019年第6期62卷 1055-1064页

作者： MARTINEZ-morales Jose QUEJ-COSGAYA Hector LAGUNAS-JIMENEZ Jose PALACIOS-HERNANDEZ Elvia morales-SALDANA Jorge Faculty of Engineering Autonomous University of Campeche Campeche 24039 Mexico Faculty of Sciences Autonomous University of San Luis Potosi San Luis Potosi 78290 Mexico Faculty of Engineering Autonomous University of San Luis Potosi San Luis Potosi 78290 Mexico

A multilayer perceptron(MLP) artificial neural network(ANN) model has been optimized by the multi-objective ant colony optimization(MOACO) algorithm, which uses three objective functions. A sensitivity analysis to choose MOACO parameter values is carried out by calculating hypervolume metric, and the proposed approach adopts the Vlsekriterijumska Optimizacija I Kompromisno Resenje(VIKOR) decision method to choose final compromised solution on the Pareto front obtained from MOACO. As a result, we used the MLP-MOACO developed model to estimate the value of engine emissions of NOxin a four stroke, spark ignition(SI) gasoline engine and observed acceptable correlation coefficient(R^2) of 0.99978.

关键词： ant colony optimization multilayer perceptron artificial neural networks hypervolume engine emissions

Fundamental limits for transmission modulation in VO_(2) metasurfaces

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Photonics Research 2023年第1期11卷 I0002-I0011页

作者： BOHAN LI ROCIO CAMACHO-morales NEUTON LI ANDREA TOGNAZZI MARCO GANDOLFI DOMENICO DE CEGLIA COSTANTINO DE ANGELIS ANDREY A.SUKHORUKOV ANDDRAGOMIR N.NESHEV ARC Centre of Excellence for Transformative Meta-Optical Systems(TMOS) Department of Electronic Materials EngineeringResearch School of PhysicsThe Australian National UniversityCanberraACT 2601Australia Department of Engineering University of PalermoPalermo 90128Italy Istituto Nazionale di Ottica Consiglio Nazionale delle RicercheBrescia 25123Italy Department of Information Engineering University of BresciaBrescia 25123Italy

The interest in dynamic modulation of light by ultra-thin materials exhibiting insulator–metal phase transition,such as VO_(2),has rapidly grown due to the myriad industrial applications,including smart windows and optical ***,for applications in the telecommunication spectral band,the light modulation through a thin VO_(2) film is low due to the presence of strong material ***,we demonstrate tailored nanostructuring of VO_(2) to dramatically enhance its transmission modulation,reaching a value as high as 0.73,which is 2 times larger than the previous modulation *** resulting designs,including free-topology optimization,demonstrate the fundamental limit in acquiring the desired optical performance,including achieving positive or negative transmission *** results on nanophotonic management of lossy nanostructured films open new opportunities for applications of VO_(2) metasurfaces.

关键词： surfaces desired smart

Distributed Monitoring of Power System Oscillations Using Multiblock Principal Component Analysis and Higher-order Singular Value Decomposition

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Journal of Modern Power Systems and Clean Energy 2022年第4期10卷 818-828页

作者： Arturo Román-Messina Alejandro Castillo-Tapia David A.Román-García Marcos A.Hernández-Ortega Carlos A.morales-Rergis Claudia M.Castro-Arvizu Center for Research and Advanced Studies(CINVESTAV)of the National Polytechnic Institute of Mexico GuadalajaraJal.45017Mexico Instituto Tecnológico y de Estudios Superiores de Monterrey GuadalajaraJal.45070Mexico Autonomous University of Guadalajara GuadalajaraJal.45129Mexico Centro de Enseñanza Técnica Industrial and he is also with UAGGuadalajaraJal.44638Mexico

The primary goal in the analysis of hierarchical distributed monitoring and control architectures is to study the spatiotemporal patterns of the interactions between areas or *** this paper,a novel conceptual framework for distributed monitoring of power system oscillations using multiblock principal component analysis(MB-PCA)and higher-order singular value decomposition(HOSVD)is proposed to understand,characterize,and visualize the global behavior of the power *** proposed framework can be used to evaluate the influence of a given area or utility on the oscillatory behavior,uncover low-dimensional structures from high-dimensional data,and analyze the effects of heterogeneous data on the modal characteristics and interpretation of power *** metrics are then investigated to examine the relationships between the dynamic patterns and participation of individual data blocks in the global behavior of the *** application of these techniques is demonstrated by case studies of two systems:a 14-machine test system and a 5449-bus 635-generator equivalent model of a large power system.

关键词： Distributed monitoring multiblock principal component analysis(MB-PCA) higher-order singular value decomposition(HOSVD) Tucker decomposition

Chitosan coatings with distinct innate immune bioactivities differentially stimulate angiogenesis,osteogenesis and chondrogenesis in poly-caprolactone scaffolds with controlled interconnecting pore size

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Bioactive Materials 2022年第4期7卷 430-442页

作者： Caroline D.Hoemann Javier Rodríguez Gonzalez Jessica Guzman-morales Gaoping Chen Ebrahim Jalali Dil Basil D.Favis Department of Chemical Engineering Polytechnique MontrealQCCanada Department of Bioengineering George Mason University VAUSA Centre de Recherche sur les Systemes Polymeres et Composites a Haute Performance(CREPEC) Canada

This study tested whether osseous integration into poly(ε-caprolactone)(PCL)bioplastic scaffolds with fully-interconnecting 155±8μm pores is enhanced by an adhesive,non-inflammatory 99% degree of deacetylation(DDA)chitosan coating(99-PCL),or further incorporation of pro-inflammatory 83% DDA chitosan microparticles(83-99-PCL)to accelerate *** Zealand White rabbit osteochondral knee defects were press-fit with PCL,99-PCL,83-99-PCL,or allowed to bleed(drill-only).Between day 1 and 6 weeks of repair,drill-only defects repaired by endochondral ossification,with an 8-fold higher bone volume fraction(BVF)versus initial defects,compared to a 2-fold(99-PCL),1.1-fold(PCL),or 0.4-fold(83-99-PCL)change in *** innate immune cells swarmed to 83-99-PCL,elicited angiogenesis throughout the pores and induced slight bone *** and 99-PCL pores were variably filled with cartilage or avascular mesenchyme near the bone plate,or angiogenic mesenchyme into which repairing trabecular bone infiltrated up to 1 mm *** repair cartilage covered the 99-PCL scaffold(65%)than PCL(18%)or 83-99-PCL(0%)(p<0.005).We report the novel finding that non-inflammatory chitosan coatings promoted cartilage infiltration into and over a bioplastic scaffold,and were compatible with trabecular bone *** study also revealed that in vitro osteogenesis assays have limited ability to predict osseous integration into porous scaffolds,because(1)in vivo,woven bone integrates from the leading edge of regenerating trabecular bone and not from mesenchymal cells adhering to scaffold surfaces,and(2)bioactive coatings that attract inflammatory cells induce bone resorption.

关键词： Bone tissue engineering Cartilage tissue engineering Hematoma Chitosan Angiogenesis Osteogenesis Inflammation

Key innovations in ruminant evolution: a paleontological perspective

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Integrative Zoology 2014年第4期9卷 412-433页

作者： Daniel DeMIGUEL Beatriz AZANZA Jorge morales Catalan Institute of Paleontology Miquel Crusafont Autonomus University of BarcelonaBarcelonaSpain Department of Earth Sciences University of ZaragozaUniversity Research Institute in Environmental SciencesZaragozaSpain Department of Paleobiology National Museum of Natural SciencesMadridSpain

Key innovations are newly acquired structures that permit the performance of a new function and open new adaptive zones,and are,therefore,of paramount significance for understanding the history of the Ruminantia,particularly its diversification through the *** we review and discuss what is known about these evolutionary novelties,with special emphasis on the appearance and evolution of cranial appendages and high-crowned(or hypsodont)*** appendages probably favored the diversification of pecorans by being structures strongly related to sexual selection,whereas the acquisition of hypsodont teeth could have expanded potential dietary breadth and allowed species to extend diets into the grazing range without eliminating browsing as a potential *** analyzed in conjunction with patterns of faunal diversity and in the context of climatic changes,it seems that the overall view that ruminant cranial appendages and hypsodonty may have started responding to increased patterns of seasonality and the opening-up of ecosystems is roughly ***stead,they occurred through several distinct pulses and varied widely among *** review is,to our knowledge,the first to highlight that the evolution of these innovations has been far from constant and uniform through ***,we identify that both a first attempt to increase hypsodonty starting in the early Miocene and a first evolution of antlers and pronghorns were interrupted as a consequence of wide climatic fluctuations in the early-middle Miocene transition.

关键词： Artiodactyla climate change cranial appendages diversity hypsodonty

Use of δ^(18)O, δ^(13)C and NO_(3)^(-) to identify hydrogeochemical processes related to contamination in an aquifer located in central Mexico

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Acta Geochimica 2022年第3期41卷 367-392页

作者： JoséIván morales-Arredondo María Aurora Armienta Hernández Fátima Juárez-Aparicio Jorge Federico Landa-Arreguín Itzamna Zaknite Flores-Ocampo Natural Resources Department Institute of GeophysicsNational Autonomous University of MexicoCiudad Universitaria No.3000Col.Copilco UniversidadCoyoacan Delegation04360 MexicoCDMXMexico Earth Sciences Postgraduate Program University National Autonomous of MexicoUniversity City No.3000Col.Copilco UniversityCoyoacán Delegation04510 MexicoCDMXMexico

In this work,an isotopic analysis of δ^(18)O,δ^(13)C,and NO_(3)^(-) concentrations was carried out to identify the origin and the processes related to the contamination of an aquifer located in the state of Guanajuato,*** research identified the possible sources of δ^(13)C in *** groundwater flow,CO_(2) participates in different hydrogeochemical reactions in which the dissolution of carbonates or biochemical processes related to biodegradation stand *** data of δ^(13)C,δ^(18)O,and the hydrogeochemical behavior of NO_(3)^(-) and HCO_(3)^(-) in water,in addition to isotopic data and the chemical composition of limestones in the study area,were determined to establish the isotopic signature and the processes undergone by the *** isotopic signature of rock and water samples indicated that metamorphic limestones contributed with carbon dioxide to deep groundwater,while in the upper aquifer,bacterial metabolic reactions during nitrification–denitrification could modify the isotopic signature of δ^(13)C in some wells,although atmospheric contribution also plays a *** modification of the carbon isotopic component is related to the precipitation of calcite in specific regions of the study area,input of atmospheric CO_(2),and soil(*** possible participation of C4-type plants in the assimilation-release of carbon).This process is not confirmed or completely ruled out in this study since agriculture is excessively developed throughout the *** joint interpretation of isotopic values and the hydrogeochemical behavior of major and conservative elements help in identifying possible pollution processes in which different carbon sources are related.

关键词： ^(18)O and^(13)C isotopes Groundwater pollution Nitrate Limestone

Are Ni/and Ni5Fe1/biochar catalysts suitable for synthetic natural gas production?A comparison with g-Al2O3 supported catalysts

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Green Energy & Environment 2023年第3期8卷 744-756页

作者： M.Gonzalez-Castano C.morales J.C.Navarro de Miguel J.H.Boelte O.Klepel J.I.Flege H.Arellano-García Department of Process and Plant Technology Brandenburg University of Technology(BTU)Cottbus-SenftenbergPlatz der Deutschen 1Cottbus03046Germany Applied Physics and Semiconductor Spectroscopy Brandenburg University of Technology Cottbus-SenftenbergKonrad-Zuse-Strasse 1Cottbus03046Germany Department of Inorganic Chemistry Institute of Materials Science of SevilleConsejo Superior de Investigaciones Cientificas(CSIC)Universidad de Sevilla(US)Avenida Americo Vespucio 49Seville41092Spain Institute of Materials Chemistry Brandenburg University of Technology Cottbus–SenftenbergUniversitatsplatz 1SenftenbergD-01968Germany

Among challenges implicit in the transition to the post-fossil fuel energetic model,the finite amount of resources available for the technological implementation of CO_(2) revalorizing processes arises as a central *** development of fully renewable catalytic systems with easier metal recovery strategies would promote the viability and sustainability of synthetic natural gas production circular *** Ni and NiFe catalysts supported over g-Al_(2)O_(3) oxide as reference materials,this work evaluates the potentiality of Ni and NiFe supported biochar catalysts for CO_(2) *** development of competitive biochar catalysts was found dependent on the creation of basic sites on the catalyst *** lower Turn Over Frequencies than Ni/Al catalyst,the absence of basic sites achieved over Ni/C catalyst was related to the depleted catalyst *** NiFe catalysts,analogous Ni_(5)Fe_(1) alloys were constituted over both alumina and biochar *** highest specific activity of the catalyst series,exhibited by the NiFe/C catalyst,was related to the development of surface basic sites along with weaker NiFe-C interactions,which resulted in increased Ni0:NiO surface populations under reaction *** summary,the present work establishes biochar supports as a competitive material to consider within the future low-carbon energetic panorama.

关键词： Biochar catalysts Carbon catalysts Ni catalysts NiFe alloy Bimetallic catalysts Synthetic natural gas CO_(2)methanation

Neurocognitive outcomes in pediatric brain tumors after treatment with proton versus photon radiation:a systematic review and meta-analysis

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世界儿科杂志:英文版 2023年第8期19卷 727-740页

作者： Álvaro Lassaletta Javier S.morales Pedro L.Valenzuela Borja Esteso Lisa S.Kahalley Donald J.Mabbott Soumya Unnikrishnan Elena Panizo Felipe Calvo Radiation Oncology Department Clínica Universidad de NavarraCalle Marquesado de Santa Marta 128027 MadridSpain Pediatric Neuro-Oncology Unit Hospital Infantil Universitario Niño JesúsMadridSpain MOVE-IT Research Group Department of Physical EducationFaculty of Education SciencesUniversity of CadizCádizSpain Biomedical Research and Innovation Institute of Cádiz(INiBICA)Research Unit Puerta del Mar University HospitalUniversity of CádizCádizSpain Physical Activity and Health Research Group(PaHerg) Research Institute of the Hospital 12 de Octubre(‘imas12’)MadridSpain Systems Biology Department University of AlcaláMadridSpain Clinical Neuropsychology Unit Psychiatry and Clinical Psychology DepartmentHospital Infantil Universitario Niño JesúsMadridSpain Baylor College of Medicine HoustonTXUSA Texas Children’s Hospital HoustonTXUSA The Hospital for Sick Children TorontoONCanada The University of Toronto TorontoONCanada University of California School of Medicine San DiegoLa JollaCAUSA

Background Advances in cancer treatments,particularly the development of radiation therapy,have led to improvements in survival outcomes in children with brain ***,radiation therapy is associated with significant long-term neurocognitive *** present systematic review and meta-analysis aimed to compare the neurocognitive outcomes of children and adolescents with brain tumors treated with photon radiation(XRT)or proton therapy(PBRT).Methods A systematic search was conducted(PubMed,Embase,Cochrane,and Web of Science from inception until 02/01/2022)for studies comparing the neurocognitive outcomes of children and adolescents with brain tumors treated with XRT *** pooled mean differences(expressed as Z scores)were calculated using a random effects method for those endpoints analyzed by a minimum of three *** Totally 10 studies(n=630 patients,average age range:1–20 years)met the inclusion *** who had received PBRT achieved significantly higher scores(difference in Z scores ranging from 0.29–0.75,all P0.05 in main analyses or sensitivity analyses)were found for nonverbal memory,verbal working memory and working memory index,processing speed index,or focused *** Pediatric brain tumor patients who receive PBRT achieve significantly higher scores on most neurocognitive outcomes than those who receive *** studies with long-term follow-ups are needed to confirm these results.

关键词： Brain health Childhood cancer Intelligence quotient Radiotherapy

Implementation outcomes of a sensory integration therapy program with computerized dynamic posturography in patients with balance and sensory dysfunction

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Journal of Otology 2023年第1期18卷 26-32页

作者： Francisco Javier Gonzalez Eslait Paola Andrea Escudero Trivino Yaidy Viviana Giraldo Vergara Monica Andrea morales Garcia Vanessa Fernanda Lucero Gutierrez Universidad del Valle Audiological and Otological Balance CenterImbanaco Clinic-Grupo Quiron SaludCaliColombia Research Institute.Imbanaco Clinic-Grupo Quiron Salud CaliColombia

Objective:We describe the first-year implementation experience of an Instrumented Sensory Integration Therapy Program in Audiological&Balance Center ***:This is a retrospective descriptive *** included Seventy-three adults with diagnoses of acute,episodic,or chronic vestibular *** were classified into the following two groups:group 1 included 46 individuals treated with ISIT plus VRT,and group 2 included 27 individuals treated only with ***:The Sensory Organization Test(SOT)for both groups showed a statistical significance for all three sensory inputs;visual systems(G1:p=0.0003;G2:p=0.0337),vestibular system(G1:p<0.0001;G2:p=0.0003),and balance as demonstrated by compound balance score(G1:p<0.0001;G2:p=0.0035),and balance percentage deficit(G1:p<0.0001;G2:p=0.0078).Conclusions:The severity and complexity of functional neurological disorders in the context of vestibular syndromes seem to require between 10 and 20 therapy sessions,and combined ISIT plus VRT appears to be more effective than ISIT as a monotherapy.

关键词： Posturography Vestibular rehabilitation therapy Dizziness handicap inventory