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Machine learning-Based Radio Access Technology Sel.c.ion in the Internet of Moving Things

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china communications 2021年第7期18卷 13-24页

作者： Ramon Sanchez-Iborra luis Bernal-escobedo Jose Santa Dept.Engineering and Applied Techniques University Centre of Defence at the Spanish Air Force Academy30729 San JavierSpain Dept.Information and communication Engineering University of Murcia30100 MurciaSpain Dept.of El.c.ronics Computing Technology and ProjectsTechnical University of Cartagena30202 CartagenaSpain

The Internet of Moving Things(IoMT)takes a step further with respect to traditional static IoT *** this line,the integration of new eco-friendly mobility devices such as scooters or bicycles within the cooperative-Intelligent Transportation Systems(c-ITS)and smart city ecosystems is crucial to provide novel *** this end,a range of communication technologies is available,such as cellular,vehicular WiFi or low-Power Wide-Area Network(lPWAN);however,none of them can fully cover energy consumption and Quality of Service(QoS)***,we propose a Decision Support System(DSS),based on supervised Machine learning(Ml.c.assification,for sel.c.ing the most adequate transmission interface to send a certain message in a multi-Radio Access Technology(RAT)set *** Ml algorithms have been explored taking into account computing and energy constraints of IoMT enddevices and traffic ***,a real implementation of a decision tree-based DSS for micro-controller units is presented and *** attained results demonstrate the validity of the proposal,saving energy in communication tasks as well as satisfying QoS requirements of certain urgent *** footprint of the real implementation on an Arduino Uno is 444 bytes and it can be executed in around 50µs.

关键词： internet of moving things multi-RAT cITS classification personal mobility

Influence of agriculture and aquaculture activities on the response of autotrophic picoplankton in laguna Macapule, Gulf of california (Mexico)

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Ecological Processes 2017年第1期6卷 41-51页

作者： Aída Martínez-lópez cristian Hakspiel-Segura Diana cecilia escobedo-Urías Bárbara González-Acosta centro Interdisciplinario de ciencias Marinas-IPN(cIcIMAR) Av.IPN s/nCol.Playa Palo de Santa RitaLa PazB.C.S.23096Mexico centro de Interdisciplinario de Investigación para el Desarrollo Integral Regional (CIIDIR–Unidad Sinaloa)Bulevar Juan de Dios Bátiz Paredes 250Col.San JoachinGuasaveSinaloa 81101Mexico

Introduction:The lagoon is a component of coastal zones,whose populations of autotrophic picoplankton(APP)remain largely *** lagoons display high-nutrient productivity and additionally may also be subjected to anthropogenic *** study sel.c.ed laguna Macapule,l.c.ted on the eastern shore in the mid-region of the Gulf of california,due to the fact that a drainage network servicing the surrounding agricultural region(>230,000 hectares under cultivation)directs irrigation runoff,shrimp farm effluents,and urban wastewater containing large quantities of nutrients to be discharged into this *** propose to identify the APP’s response to various types of environmental and anthropogenic influence in this highly impacted coastal ***:Two sites(separated by 2.7 km)were monitored from December 2007 to December ***,l.c.ted at the entrance to laguna Macapule(oceanic influence)and the other a discharge canal(eutrophic conditions)inside the lagoon at El Tortugó***:APP was the numerically dominant phytoplankton fraction(15×106 to 620×106 cells l−1)with coccoidal.c.anobacteria as the dominant fraction throughout the *** levels were reached in spring-early autumn and they were the second largest contributor to *** of APP cells corresponds to the lagoon’s eutrophic *** numbers and a higher average of APP were recorded at the El Tortugón channel during the warm season(months with SST higher than 24°c).The general positive relationship of the APP’s annual.c.cle at both sites as well as a negative relationship with heterotrophic nanoflagellates(HNF)abundance,supports the idea that natural forcing,in particular sea surface temperature(SST)is the predominant influences on APP’s seasonal ***:Distinguishable significant differences in APP abundances and nutrients were recognizable between the two *** interplay of these variables contributed to lower densities of APP in winter and high de

关键词： Aquaculture Autotrophic picoplankton Eutrophic conditions Heterotrophic ciliates Heterotrophic nanoflagellates Urea

TinyMl-Based Fall Detection for connected Personal Mobility Vehicles

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computers, Materials & continua 2022年第5期71卷 3869-3885页

作者： Ramon Sanchez-Iborra luis Bernal-escobedo Jose Santa Antonio Skarmeta University center of Defense General Air Force AcademySan Javier30720Spain University of Murcia Murcia30100Spain Technical University of cartagena Cartagena30202Spain

A new wave of el.c.ric vehicles for personal mobility is currently crowding publ.c.*** offer a sustainable and efficient way of getting around in urban environments,however,these devices bring additional safety issues,including serious accidents for ***,taking advantage of a connected personal mobility vehicle,we present a novel on-device Machine learning(Ml)-based fall detection system that analyzes data captured from a range of sensors integrated on an on-board unit(OBU)*** the typical processing limitations of these elements,we exploit the potential of the TinyMl paradigm,which enables embedding powerful Ml algorithms in constrained *** have generated and publ.c.y released a large dataset,including real riding measurements and realistically simulated falling events,which has been employed to produce different TinyMl *** attained results show the good operation of the system to detect falls efficiently using embedded *** considered algorithms have been successfully tested on mass-market low-power units,implying reduced energy consumption,flash footprints and running times,enabling new possibilities for this kind of vehicles.

关键词： Personal mobility machine learning on-board unit c-ITS IoT

Numerical and experimental investigation to design a novel morphing airfoil for performance optimization

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Propulsion and Power Research 2023年第1期12卷 83-103页

作者： Kiumars Khani Aminjan Maryam Ghodrat Milad Heidari Pooyan Rahmanivahid Shayan Naghdi Khanachah Mira chitt Juan Pablo escobedo-Diaz Faculty of Aerospace Malek Ashtar University of TechnologyTehran 1774-15875Iran School of Engineering and Information Technology University of New South Wales CanberraCanberraACT 2610Australia Mechanical Engineering Department Global College of Engineering and Technology(GCET)P.O.Box 2546 CPO Ruwi 112MuscatSultanate of Oman School of Industrial Engineering Iran University of Science and TechnologyTehran 16846-13114Iran

Optimizing flying objects’wing performance has attracted a significant attention in the last few *** this article,some of the main mechanisms for changing the geometry of the wing were investigated and a new mechanism is proposed to improve the aerodynamic performance of the airplane *** designs have been simulated and analyzed from both aerodynamic and control points of *** aerodynamic simulations using cFD methods,two airfoils of NAcA series 6 with specifications 65-212 and 65-2012 were *** results indicated that both airfoils used have a better performance compared to others in a certain range of the angle of ***,a new mechanism is proposed to change the wing geometry to optimize its *** the proposed mechanism,the structures of airfoils and wings consist of two fixed and moving parts,which can change their geometry with the help of a control *** fixed part has a grooved track,and as the moving part moves in the direction of the grooves,the curvature of the upper and lower parts of the wing *** design control.c.rcuit includes an angle sensor,a micro controller,and a *** cFD results are entered into the micro controller as *** any moment,the micro controller receives the angle data from the angle sensor and by comparing them with the cFD data,and issuing a command to the servomotor,it situates the wing curvature in the optimal state at all *** built mechanism was tested at an attack angle of 0°and 25°.The results showed that the different parts of the mechanism work with very high precision and put the geometric shape of the wing in an optimal state in a completely intelligent *** should be noted that the average error in test for t/c and Xt/c was 15.3% and 9%,respectively.

关键词： Morphing airfoil lift force Optimization computational fluid dynamics Micro controller Angle sensor

Specific primers design based on the superoxide dismutase b gene for Trypanosoma cruzi as a screening tool:Validation method using strains from colombia classified according to their discrete typing unit

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Asian Pacific Journal of Tropical Medicine 2014年第11期7卷 854-859页

作者： Francisco Olmo Javier escobedo-Ortegón Patricia Palma Manuel Sánchez-Moreno Ana Mejía-Jaramillo Omar Triana clotilde Marín Grupo de Parasitologia Mol.c.lar Departmento de Parasitologia Universidad de Granada laboratorio de Zoonosis y ETV's C.I.R.Dr.Hideyo NoguchiUniversidad Autonoma de YucatanAve.Itzaes #490 x 5997000 MeridaYucatan(Mexico) Grupo Biologiay control de Enfermedades Infecciosas BcEI-SIU Instituto de BiologiaUniversidad de Antioquia

Objective:To classify 21 new isolates of Trypanosoma cruai(***) according to the Discrete Typing Unit(DTU) which they belong to,as well as tune up a new pair of primers designed to detect the parasite in biological ***:Strains were isolated,DNA extracted,and classified by using three Polymerase chain Reactions(PcR).Subsequently this DNA was used along with other isolates of various biological samples,for a new PcR using primers ***,the amplified fragments were ***:It was observed the predominance of DTU i in colombia,as well as the specificity of our primers for detection of ***,while no band was obtained when other species were ***:This work reveals the genetic variability of 21 new isolates of *** in *** primers confirmed their specificity for detecting the presence of ***.

关键词： Trypanosoma cruzi Polymerase chain reaction colombia Superoxide dismutase gene b-based primers Discrete typing unit

Imidoyl Radicals for the Synthesis of chromenoquinolines and Naphthyridines

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International Journal of Organic chemistry 2018年第3期8卷 319-334页

作者： Karen c. Vizcaíno-escobedo J. Adrián Sánchez-carrillo Martha Albores-Velasco Facultad de Química Universidad Nacional Autónoma de México Ciudad Universitaria Ciudad de México México

The stability of imidoyl radicals prepared from 2-(2-alkenyloxy)-phenyl selenoimidates and 2-(2-allylamino)-phenyl selenoimidates and their intramol.c.lar free radical.c.clization through the slow addition of tri-N-butyltin hydride and AIBN to obtain 4-chromanones and 4-quinolones were studied. The extension of the methodology to N-phenyl substituted imidoyl selenoates produced tandem cyclizations of the imidoyl radical with the allyl substituent, followed for a second cyclization of the intermediate radical with the aromatic substituent to produce dihydro-chromenoquinolines or tetrahy-dro-dibenzonaphtyridines. Further oxidation with DDQ produced: 6H-chromeno [4,3,b] quinoline and 7-methyl-6H-chromenoquinoline from 2-alkenylamino-phenylbenzamide and 5,6-dihydro-dibenzo [b,h][1,6] naphthyridine and 5,6-dihydro-7-methyl-dibenzo [b,h][1,6] naphthyridine from 2-2-(alkylamino)-N-phenylbenzamides. The cyclization of 2-(N,***)-N-phenylnicotinamide selenoate obtained from 2-aminonicotinic acid, produced 5,6-dihidro-benzo[b]pyrido2,3-h] [1,6] naphthyridine.

关键词： Imidoyl Radicals Quinolones chromenoquinolines Naphthyridines Dibenzonaphtyridines

Facile Preparation of 1,2-Diols from chalcones: An NMR Spectroscopy and X-Ray crystallography Study

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International Journal of Organic chemistry 2015年第3期5卷 137-146页

作者： Marco A. Obregón-Mendoza María Miriam Estévez-carmona carolina escobedo-Martínez Manuel Soriano-García Raúl G. Enríquez Instituto de Química Universidad Nacional Autónoma de México Ciudad Universitaria México City México Departamento de Farmacia División de Ciencias Naturales y Exactas del Campus Guanajuato Universidad de Guanajuato México

Structures of 2-(naphthalen-2-ylmethyl)-2,3-dihydro-1H-indene-1,2-diol (c20H18O2), compound 1 and 1-(3,4-dimethoxyphenyl)-3-methoxy-3-(4-nitrophenyl)propane-1,2-diol.c.loroform (c18H21NO7·cHcl3) compound 2 were established by spectral and X-ray diffraction studies. compound 1 crystallizes in the orthorhombic space group P212121 with unit cell parameters a = 5.2177 (6), b = 13.903 (2), c = 21.121 (2) A, Z = 4. compound 2 crystallizes in the triclinic space group P-1 with unit cell parameters a = 9.238 (1), b = 9.879 (1), c = 12.636 (1) A, α = 102.004 (1), β = 92.356 (1), γ = 90.779 (1)o, Z = 2. These two new mol.c.les arise from a facile preparation of 1,2-diols from chalcones and have been fully characterized. Based on the crystallographic information obtained for compound 1, the relative configuration for the chiral.c.nters is 1S and 2S. In structure 1, both hydroxyl groups adopt an anti-conformation with a torsion angle O1-c1-c2-O2 value of 93.1 (2)o [in mol.c.le 2, both hydroxyl groups adopt a trans-conformation with a torsion angle O1-c1-c2-O2 value of -171.0 (2)。]. In both structures, the mol.c.les in the crystal are linked by intermol.c.lar hydrogen bonds O-H···O and c-H···O interactions and adjacent mol.c.les are interconnected by intermol.c.lar weak c-H···π and c-H···cl interactions which give additional support to mol.c.lar packing stability.

关键词： c20H18O2 c18H21NO7·cHcl3 Diols chal.c.nes

chemical.c.aracterisation of the Industrial Residues of the Pineapple (Ananas comosus)

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Journal of Agricultural.c.emistry and Environment 2014年第2期3卷 53-56页

作者： María Elena Sánchez Pardo María Elena Ramos cassellis Rosalva Mora escobedo Epifanio Jiménez García Benemérita Universidad Autónoma de Puebla Av.San Claudio y 18 sur Edif.106 Ciudad Universitaria Puebla Pue.3ExHacienda san Juan Molino km 1.5 carretera Estatal Tecuexcomac-Tepetitla México Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas Prolongación de Carpio y Plan de Ayala S/N Col. Sto. Tomás. C.P. 11340 México D.F. México

In Mexico pineapple processing produces industrial residues with a high concentration of dietary fibre. The aim of this study was to quantify the constituents of the fibrous residues from the industrial processing of ... 详细信息

关键词： Pineapple Total Dietary Fibre Hemicelluloses cellulose lignin Pectin

Y3Fe5O12Prepared by Mechanosynthesis from Different Iron Sources

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Advances in Materials Physics and chemistry 2013年第1期3卷 41-46页

作者： claudia A. cortés-escobedo Ana M. Bolarín-Miró Félix Sánchez-De Jesús Raúl Valenzuela Elizabeth P. Juárez-camacho Iván l. Samperio-Gómez Souad Ammar área Académica de ciencias de la Tierra y Materiales UAEH Hidalgo Mexico cIITEc Instituto Politécnico Nacional Mexico City Mexico Departamento de Materiales Metál.c.s y cerámicos IIM UNAM Mexico City Mexico ITODYS UMR CNRS 7086 Université de Paris-Diderot Paris France

Yttrium iron garnet, Y3Fe5O12 (YIG) powders were synthesized by mechanochemical processing (McP) from different iron sources (FeO, Fe2O3 and Fe3O4) mixed with Y2O3, followed by a heat treatment. The aim of this work is to demonstrate that McP followed by annealing at very low temperatures (as compared with the classic solid state reaction) can induce the formation of nanostructured YIG. The effect of iron source on final structure was also studied. X-ray diffraction (XRD) and scanning el.c.ron microscopy (SEM) were used to characterize the synthesized powders. The precursors mixed in a stoichiometric ratio to obtain YIG were milled at room temperature in a shaker mixer mill with a ball:powder weight ratio of 10:1. A partial synthesis of YIG was achieved after 9 h of milling time by using the three sources of iron;however, a significant fraction of the product was the perovskite YFeO3. The largest yield of YIG was obtained by using FeO. In all.c.ses a single garnet phase could only be completely obtained after an annealing process at 900?c, around 400?c lower than the typical temperatures to prepare the material by solid state reaction. An analysis of the microstrain and lattice parameters associated with peak displ.c.ments is discussed.

关键词： Mechanochemistry YIG Annealing Iron Garnet