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Influence of Data Clouds Fusion From 3D RealTime Vision System on Robotic Group Dead Reckoning in Unknown Terrain

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IEEE/CAA Journal of Automatica Sinica 2020年第2期7卷 368-385页

作者： Mykhailo Ivanov Oleg Sergyienko Vera Tyrsa Lars Lindner Wendy Flores-Fuentes Julio cesar Rodriguez-Quinonez Wilmar hernandez Paolo Mercorelli Universidad Autónoma de Baja California MexicaliB.C.21100Mexico Universidad de Las Américas Quito 170125Equador Leuphana University of Lueneburg Lüneburg 21335Germany

This paper proposes the solution of tasks set required for autonomous robotic group behavior optimization during the mission on a distributed area in a cluttered hazardous terrain.The navigation scheme uses the benefits of the original real-time technical vision system(TVS)based on a dynamic triangulation principle.The method uses TVS output data with fuzzy logic rules processing for resolution stabilization.Based on previous researches,the dynamic communication network model is modified to implement the propagation of information with a feedback method for more stable data exchange inside the robotic group.According to the comparative analysis of approximation methods,in this paper authors are proposing to use two-steps post-processing path planning aiming to get a smooth and energy-saving trajectory.The article provides a wide range of studies and computational experiment results for different scenarios for evaluation of common cloud point influence on robotic motion planning.

关键词： Data transfer group behavior machine vision navigation robotic group(RG) vision system

Variability in mentum deformities of Tanytarsus larvae(Diptera,Chironomidae)in a metal rich basin in Northern Mexico

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Water Biology and Security 2022年第2期1卷 1-9页

作者： Orestes Carlos Bello-Gonzalez Perla Alonso-EguíaLis cesar Arturo Ilizaliturri hernandez Norman Mercado-Silva Centro de Investigacion en Biodiversidad y Conservacion Universidad Autonoma del Estado de MorelosCuernavacaMorelosMexico Instituto Mexicano de Tecnología del Agua JiutepecMorelosMexico Facultad de Medicina-Centro de Investigacion Aplicada en Ambiente y Salud Universidad Autonoma de San Luis PotosíCoordinacion para la Aplicacion de la Ciencia y la Tecnología-(CIACyT-CIAAS)San Luis PotosíMexico

Mentum deformities in chironomids have been commonly used as indicators of metal contamination in freshwater ecosystems.Incidence of these deformities suggests sublethal effects and can provide early signals of environmental deterioration.While anthropogenic metal pollution is known to lead to an increase in deformities in chironomids,natural background deformity incidence information is key to their effective use as biomonitoring tools.Here we explore the incidence of deformities from 5000 Tanytarsus(Diptera,Chironomidae)menta in relation to water physicochemical,and sediment metal(Al,As,Cu,Fe,Mn,Pb,Zn)concentration data from numerous sites in the naturally metal-rich Sonora River(NW Mexico)obtained over a two-year period.Higher metal concentrations were found in the upper basin.Higher salinity,total suspended solids and conductivity were found in the lower basin.Only As and Cu were occasionally found above published threshold effect levels(TEL).The proportion of deformities(%D)was low(2.1%)and a generalized linear model only explained 25.36%of%D variability among samples;this model included several physicochemical parameters.The only metal significantly related to deformities was Cu.Despite significant spatial and temporal variability in all metal concentrations and other physicochemical parameters in the basin,we were unable to explain a strong relationship between metal concentration and deformity incidence.Our results,based on consistent%D quantification from 5000 samples from a single taxon,suggest that natural variation in metal concentrations,even when statistically significant,is not associated with notable variations in the incidence of deformities.

关键词： Macroinvertebrate Pollution Sonora river Desert river Copper Arsenic

Leaching kinetics in cyanide media of Ag contained in the industrial mining-metallurgical wastes in the state of Hidalgo, Mexico

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International Journal of Mining Science and Technology 2014年第5期24卷 689-694页

作者： Juan hernandez Francisco Patino Isauro Rivera Iván Alejandro Reyes Misrael Uriel Flores Julio cesar Juarez Martín Reyes Research Centre in Materials and Metallurgy Autonomous University of Hidalgo Pachuca 42184 Mexico

The leaching kinetics in cyanide media of the silver contained in the Dos Carlos waste tailings at the City of Pachuca de Soto, Hidalgo State, Mexico were carried out. The used material contained the following chemical composition: 56 10-6of Ag, 0.6 10 6of Au and 70.43%(by weight) of SiO2; 7.032%(by weight) of Al2O3; 2.69%(by weight) of Fe; 0.46%(by weight) of Mn; 3.98%(by weight) of K2O; 3.34%(by weight) of CaO; 2.50%(by weight) of Na2O; 0.04%(by weight) of Zn; 0.026%(by weight) of Pb. The mineralogical phases present were the following: Silica, albite, argentite, berlinite, orthoclase, potassium jarosite, and natrojarosite. In the leaching kinetics in cyanide media, and under the studied conditions,the effect of the CN concentration on the reaction rate has no effect on the whole process of alkaline cyanidation, of which the reaction order is n 0. Temperature has an effect on the cyanidation rate of the reaction, with an activation energy of 47.9 KJ/mol. At the same time, when the particle size decreases there is an increase in the reaction rate, which is inversely proportional to the particle diameter; when increasing the NaOH concentration there is an increase in the reaction rate Kexp, with a reaction order(n) of 0.215 under the studied ranges.

关键词：氰化物浸出浸出动力学墨西哥银矿冶金废物媒体反应速率采矿

Quite amusing stem cells:Muse cells

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Neural Regeneration Research 2023年第11期18卷 2377-2378页

作者： Molly Monsour cesar V.Borlongan University of South Florida Morsani College of Medicine TampaFLUSA Department of Neurosurgery and Brain Repair University of South FloridaMorsani College of MedicineTampaFLUSA

Stem cells may be the future of therapeutics for stroke due to their regenerative and immunomodulatory capabilities.Major barriers faced when employing stem cells,however,include faulty migration,low cell survival,and diminished proliferation.M ultilineage-differentiating stress ensuring (Muse) cells,a subset of mesenchymal stem cells,overcome these barriers.Muse cells aid in neuroregeneration,have immense regenerative potential,and are pluripotent,non-tumorigenic,and immunomodulatory.In stroke specifically,these cells may restore an a nti-inflammatory environment,regenerate damaged neurons,and integrate into the neuronal architecture.In fact,Muse cells may be aptly designed to ameliorate neurovascular unit damage following stroke and observed in other neuroinflammatory disorders.

关键词： modulator overcome integrate

Neurovascular unit permeability in neuroinflammatory diseases:a common pathologic and therapeutic target?

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Neural Regeneration Research 2023年第8期18卷 1715-1716页

Deleterious inflammatory cell invasion has been implicated in neurological diseases,partly manifesting as a leaky blood-central nervous system ba rrier(BCNSB)(Huang et al.,2021).Uncovering the perturbations of the neurovascular unit(NVU)may reveal the role of detrimental proinflammatory cells and signaling molecules in disrupting the central nervous system immuneprivileged environment.

关键词： invasion inflammatory diseases

Exploring the reproductive ecology of the tropical semifossorial snake Ninia atrata

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Zoological Research 2020年第2期41卷 157-171页

作者： Teddy Angarita-Sierra cesar Alejandro Lopez-Hurtado Tropical Organism Biology Research Group Universidad Nacional de ColombiaBogota111321Colombia Yoluka ONG Fundacion de Investigacion en Biodiversidad y ConservacionBogota110931Colombia Vicerrectoria de Investigacion Universidad Manuela BeltranBogota110231Colombia

Based on histological analyses and field studies,this research describes the reproductive ecology of a population of Ninia atrata snakes inhabiting an oil palm plantation.Furthermore,through a multivariate approach,we explored the main drivers of reproductive output in N.atrata.Results showed that prey abundance and food intake were crucial variables contributing to reproductive output.Multiple linear regression models showed that neonates had high sensitivity(R2=55.29%)to extreme changes in climate,which was strongly related to slug and snail abundance variability and microhabitat quality.Reproductive cycles were markedly different between the sexes,being continuous in males and cyclical in females.Despite this variation,reproductive cycles at the population level were seasonal semi-synchronous.Constant recruitment of neonates all year,multiple clutches,high mating frequency,and continuous sperm production characterized the reproductive phenology of N.atrata.In addition,a significant number of previtellogenic females presented oviductal sperm as well as uterine scars,suggesting a high precocity in the species.The main drivers of reproductive output also differed between the sexes.In females,clutch size and secondary follicle variability were highly related to stomach bolus volume,fat body area,and body mass.In males,height of piles of palm leaves and body mass,rather than intrinsic reproductive traits,were the main drivers of sperm production.Nevertheless,in both cases,the relationship between body mass,prey abundance,and food intake suggests that N.atrata follows the income breeding strategy to compensate for reproductive costs and to maximize fitness.

关键词： Continuous male reproduction Clutch mass Income breeding Iteroparity Spermatogenesis Oogenesis Reproductive effort El Nino-Southern Oscillation(ENSO)

Installing a prototype wind turbine to produce energy in Antarctica to allow a permanent Colombian scientific base to be established

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Advances in Polar Science 2020年第4期31卷 258-273页

作者： cesar Lozano JIMENEZ Conceptual Design of a UAV type VTOL(FAC-USB) Department of AeronauticsGraduate Program in Aeronautical EngineeringSan Buenaventura University(USB)Cr 8H#172-20BtáD.CCund6671090Colombia Administration of Aeronautical Maintenance Personal(FAC-EPFAC)/Department of Aeronautical Logistics Graduate Program in Specialist Aeronautical logisticsPostgraduate School of Colombian Air Force University(EPFAC)Cr11102-50 P 34 Ed EsdegueBtá6206518Colombia

This study was performed to support an expeditionary team of Colombian scientists seeking to promote and undertake research in various scientific fields in Antarctica.The work was part of the Colombian Antarctic Program,which comprises various projects intended to lead to a permanent Colombian scientific base being established in the Antarctic.The first step involved installing a Colombian-made wind turbine to produce electricity at a permanent base.The aeolian turbine was designed to provide sufficient electricity to illuminate and heat a small base.The turbine was constructed using readily accessible materials but taking the Madrid Protocol environmental regulations into consideration.The project was performed at the Argentinian Antarctic Marambio Station on Seymour Island,off the Antarctic Peninsula.An initial field study performed in 2015 was the first of three phases of the project.In the initial phase,local meteorological data were gathered to support development of a prototype turbine and to allow a design to be selected that was robust enough for the extreme environmental conditions.The wind turbine was then constructed in Colombia.The second phase involved transporting the turbine to Antarctica and installing it at the Marambio Station in 2018.Finally,the physical conditions of structural and electronic components of the turbine were carefully inspected at the beginning of 2020(after the turbine had operated continually for^2 years)to allow repairs to be made and any necessary re-engineering to be performed.

关键词： wind energy renewable energy Marambio Station Seymour Island Colombia Antarctic Program

Predefined-Time Backstepping Stabilization of Autonomous Nonlinear Systems

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IEEE/CAA Journal of Automatica Sinica 2022年第11期9卷 2020-2022页

作者： Alison Garza-Alonso Michael Basin Pablo cesar Rodriguez-Ramirez the School of Physical and Mathematical Sciences Autonomous University of Nuevo LeonSan Nicolas de los GarzaNuevo Leon 66455Mexico Ningbo Institute of Intelligent Equipment Technology Zhejiang 315032China

Dear Editor,In this letter,the backstepping technique is applied to solve the predefined-time stabilization problem for autonomous nonlinear systems,where nonlinear terms are unknown but satisfy a linear growth condition.A linear time-varying control law is designed to drive all states of an autonomous nonlinear system to the origin for an a priori preassigned time.

关键词： nonlinear autonomous satisfy

Ocurrence of Entomopathogenic Fungus from Flea Ctenocephalides canis(Siphonaptera:Pulicidae)

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Open Journal of Veterinary Medicine 2014年第12期4卷 281-285页

作者： Jonathan E.Ortega-Palomares Hector G.Nunez-Palenius Ana M.Cruz-Avalos Aaron A.hernandez-Rangel Roberto Lezama-Gutierrez cesar A.Angel-Sahagun Programa Educativo de Medicina Veterinaria y Zootecnia Division Ciencias de la VidaUniversidad de GuanajuatoCampus Irapuato-SalamancaIrapuatoMexico Departamento de Agronomía Division Ciencias de la VidaUniversidad de GuanajuatoCampus Irapuato-SalamancaIrapuatoMexico Instituto Tecnologico Superior de Irapuato AbasoloMexico Posgrado en Biosciencias Division Ciencias de la VidaUniversidad de GuanajuatoCampus Irapuato-SalamancaIrapuatoMexico Facultad de Ciencias Biologicas y Agropecuarias Universidad de ColimaColimaMexico

The objective of this study was to isolate entomopathogenic fungus from fleas (Ctenocephalides canis Curtis) collected from Cannis familiaris specimens. From 60 collected fleas, two dead insects presented white mycelia growth on the body surface, changing to a creamy color as time passed;the insects presented a mummified aspect, typical characteristic caused by entomopathogenic fungus. This fungus was identified as Beauveria bassiana (Balsamo-Crivelli) Vuillemin by their mycelia characteristics, macro- and micro-morphology. Up to our knowledge, this is the first report of entomopathogenic fungus isolated from adult C. canis fleas.

关键词： Ectoparasite Biological Control Dog Beauveria bassiana