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Evaluation of the Impact of Driver Behavior on Back of Queues Events in Work Zones Using the SHRP2 Naturalistic Driving Study Data

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A PD-Type State-Dependent Riccati Equation With Iterative Learning Augmentation for Mechanical Systems

Journal of Transportation Technologies（交通科技期刊） 2024年第2期 179页

作者： Shauna Hallmark guillermo Basulto-Elias Nicole Oneyear Omar Smadi

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IEEE/CAA Journal of Automatica Sinica 2022年第8期9卷 1499-1511页

作者： Saeed Rafee Nekoo JoséÁngel Acosta guillermo Heredia Anibal Ollero GRVC Robotics Lab. Depto de Ingeniería de Sistemas y AutomáticaEscuela Técnica Superior de IngenieríaUniversidad de SevillaSeville 41092Spain

This work proposes a novel proportional-derivative(PD)-type state-dependent Riccati equation(SDRE)approach with iterative learning control(ILC)*** the one hand,the PD-type control gains could adopt many useful available criteria and tools of conventional PD *** the other hand,the SDRE adds nonlinear and optimality characteristics to the controller,i.e.,increasing the stability *** advantages with the ILC correction part deliver a precise control law with the capability of error reduction by *** SDRE provides a symmetric-positive-definite distributed nonlinear suboptimal gain K(x)for the control input law u=–R–1(x)BT(x)K(x)*** sub-blocks of the overall gain R–1(x)BT(x)K(x),are not necessarily symmetric positive definite.A new design is proposed to transform the optimal gain into two symmetric-positive-definite gains like PD-type controllers as u=–KSP(x)e–KSD(x)?.The new form allows us to analytically prove the stability of the proposed learning-based controller for mechanical systems;and presents guaranteed uniform boundedness in finite-time between learning *** symmetric PD-type controller is also developed for the state-dependent differential Riccati equation(SDDRE)to manipulate the final *** SDDRE expresses a differential equation with a final boundary condition,which imposes a constraint on time that could be used for finitetime ***,the availability of PD-type finite-time control is an asset for enhancing the conventional classical linear controllers with this *** learning rules benefit from the gradient descent method for both regulation and tracking *** of the advantages of this approach is a guaranteed-stability even from the first loop of learning.A mechanical manipulator,as an illustrative example,was simulated for both regulation and tracking *** experimental validation was done to show the capability of the system in practice by the implementation of the proposed metho

关键词： Closed-loop iterative learning control(ILC) PD-type SDRE SDDRE symmetric

Distribution,Properties,Land Use and Management of Mollisols in South America

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Chinese Geographical Science 2011年第5期21卷 511-530页

作者： Artigas Duran Hector Morris guillermo Studdert LIU Xiaobing Key Laboratory of Mollisols Agroecology Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Harbin 150081 China Faculty of Agronomy Garzon 780 12900 Montevideo Uruguay Institute of Soils INTA-CIRN CC 25 (1712) Castelar Buenos Aires Argentina Faculty of Agricultural Sciences National University of Mar Del Plata CC 276 (B7620WAP) Balcarce Buenos Aires Argentina

Mollisols are common in South America. They cover about 8.87 × 107ha, 1.3 × 107ha and 4.3 × 106ha in Argentina, Uruguay and Southern Brazil respectively, which is 11.5% of the world total. Most of South American Mollisols were developed on Pleistocene and Holocene sediments and lie within the limits of the temperate zone, though the extreme north is bordering subtropical and the extreme south is within a cold-temperate zone. All suborders of Mollisols occur in Argentina, the most extensive being Udolls followed by Ustolls, whereas only Udolls, Aquolls and Albolls occur in Uruguay. Vertisols in Uruguay have many properties similar to Mollisols, and the occurrence of Vertisols is strongly associated with Mollisols. The Pampean Mollisols are a significant component of the global breadbasket of modem times. The main Argentine crops are wheat, corn, sorghum, barmy, soybeans and sunflower, while Mollisols in Uruguay remain mostly dedicated to cattle and sheep grazing though crop production has been increasing very rapidly in the last decade. Throughout South America, research has shown that Mollisols are experiencing losses of soil organic matter and nutrients, and degradation of physical properties after long cropping periods, resulting in soil scientists calling for increased conservation practices to reduce future losses and a deterioration of soil quality, and thus a more sustainable agriculture in the region.

关键词： Mollisols classification sustainability soil fertility no tillage South America

Oral disease is linked to low nestling condition and brood size in a raptor species living in a highly modified environment

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Current Zoology 2023年第2期69卷 109-120页

作者： guillermo Blanco Oscar Frias Aida Pitarch Martina Carrete Department of Evolutionary Ecology Museo Nacional de Ciencias NaturalesCSiC.Jose Gutierrez Abascal 2Madrid 28006Spain Department of Physical Chemical and Natural SystemsUniversidad Pablo de OlavideSevilla 41013Spain Department of Microbiology and Parasitology Faculty of PharmacyComplutense University of Madrid(UCM)and Ramon y Cajal Institute of Health Research(IRYCIS)Madrid 28040Spain Teaching Unit of Microbiology and Parasitology Faculty of Optics and OptometryComplutense University of Madrid(UCM)Madrid 28037Spain

Anthropogenic stressors can favor the occurrence of noninfectious disease that can be worsened by the impact of opportunistic pathogens,making the epizootiology of environmental diseases difficult to *** incidence and impact of oral lesions in nestlings of a facultative scavenger species,the black kite Milvus migrans,were examined over seven breeding seasons in the highly degraded environment close to Madrid,*** found an overall prevalence of 31%of nestlings with oral lesions,with no clear spatial pattern in nests with affected and unaffected *** occurrence and number of oral lesions were negatively associated with nestling body condition and brood ***,where all siblings had oral lesions,were smaller than those where some or all siblings were apparently healthy,suggesting that oral disease could be causing nestling mortality and,consequently,brood size *** turn,nestling body condition was negatively affected by lesion occurrence,brood size,and laying *** these relationships were bidirectional,piecewise structural equation modeling analyses showed a greater negative effect of body condition on lesion occurrence than vice versa,indicating that nestlings in poorer body condition were more likely to develop oral lesions(which could contribute to aggravate their state of deterioration)than those in better *** from small broods were also more likely to have oral disease(directly or indirectly through their lower body condition)than nestlings from large *** that hatched last in the broods showed greater development stress than those that hatched *** stressors could trigger poor body condition,and contribute to microbiota dysbiosis-related *** further research is needed to determine the consequences for the long-term fitness of individuals,actions should be taken to mitigate adverse conditions that may favor the appearance of environmental diseases associatedwithpe

关键词： breeding success body condition developmental stress environmental disease habitat degradation opportunistic pathogens pollution raptor

Biocomposite Films of Polylactic Acid Reinforced with Microcrystalline Cellulose from Pineapple Leaf Fibers

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Journal of Renewable Materials 2019年第1期7卷 9-20页

作者： Galia Moreno Karla Ramirez Marianelly Esquivel guillermo Jimenez Laboratory of Polymers(POLIUNA) School of ChemistryUniversidad NacionalHerediaCosta Rica

Poly(lactic acid)(PLA)composite films reinforced with microcrystalline cellulose(MCC)extracted from pineapple leaf fibers(PALF)were prepared by a solution casting *** an attempt to improve the interaction between PLA and cellulose,two approaches were adopted;first,poly(ethylene glycol)(PEG)was used as a surfactant,and second,the cellulosic fibers were pre-treated using tert-butanol(TBA).Lignocellulosic and cellulosic substrates were characterized using Fourier transform infrared(FTIR),wide-angle X-ray scattering(WAXS),and thermogravimetrical analysis(TGA).MCC from PALF showed good thermal stability,left few residues after decomposing,and exhibited high crystallinity ***,thermal and thermomechanical properties of the PLA composites were also *** PLA endotherms were observed in composites with TBA-treated MCC due to crystal nucleation *** ultimate tensile strain values for all composites were lower than that of the pristine ***,4 wt.%MCC content provided balanced engineering properties in terms of static and dynamic tensile properties.

关键词： Cellulose composites microcrystalline PLA pineapple

Nodal user’s demand response based on incentive based programs

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Journal of Modern Power Systems and Clean Energy 2017年第1期5卷 79-90页

作者： Nestor GONZáLEZ-CABRERA guillermo GUTIéRREZ-ALCARAZ Instituto Tecnolo´gico Superior de Irapuato Irapuato 36620Mexico Instituto Tecnolo´gico de Morelia Morelia 58120Me´xico

This paper describes a practical approach to identify nodal price compensation payment for nodal consumers willing to reduce their energy consumption(consumers’ demand response). The implementation of a nodal reliability service pricing is based on contingency assessment of N-2 order for transmission lines. A representative annualized demand curve is used to reflect the system’s operation condition by seasons. Such curve is used to access the nodal reliability impact trough a whole year in order to determine back-payments(incentive payment) to users for service interruption. The IEEE_RTS 24 nodes system is used to implement the proposed approach.

关键词： Nodal demand response Demand side management Reliability assessment Incentive based programs(IBP)

Isolation and Characterization of Nanocellulose Obtained from Industrial Crop Waste Resources by Using Mild Acid Hydrolysis

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Journal of Renewable Materials 2018年第4期6卷 362-369页

作者： Galia Moreno Karla Ramirez Marianelly Esquivel guillermo Jimenez Laboratory of Polymers(POLIUNA) School of ChemistryNational UniversityHerediaCosta Rica

Cellulose,microcrystalline cellulose and nanocellulose were prepared from three agricultural waste resources:pineapple leaf(PALF),banana rachis(BR),and sugarcane bagasse(SCB).Each waste resource was first converted into microcrystalline cellulose which was subsequently converted into cellulose nanoparticles by using mild(30%w/v)and strong(60%w/v)sulfuric acid concentrations for *** transform infrared spectroscopy(FTIR),X-ray diffraction(XRD),and thermogravimetric analysis(TGA)were used to characterize each waste resource and extracted cellulosic ***,nanocelluloses were studied by zeta potential,size analysis,and transmission electron microscopy(TEM).Cellulose nanowhiskers were successfully obtained and isolated with a 33%average yield by applying a mild acid *** BR and SCB proved to be more promising agricultural waste resources in terms of their crystalline cellulosic content and properties.

关键词： Cellulose pineapple leaf sugarcane bagasse banana rachis whiskers

Alcohol consumption leads to loss of healthy life,but the ADH1B*2 allele may still protect from NASH

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Hepatobiliary Surgery and Nutrition 2021年第3期10卷 391-393页

作者： guillermo Mazzolini Ali Canbay Gene Therapy Laboratory Instituto de Investigaciones en Medicina Traslacional(IIMT)Universidad Austral-CONICETBuenos AiresArgentina Liver Unit Hospital Universitario AustralUniversidad AustralBuenos AiresArgentina Department of Internal Medicine University Hospital Knappschaftskrankenhaus BochumRuhr University BochumBochumGermany

Nonalcoholic fatty liver disease(NAFLD)is now the most common cause of chronic liver disease worldwide,affecting almost a quarter of the world population(1,2),and is a main cause of severe hepatic complications such as cirrhosis and liver *** histological assessment NAFLD and alcoholic liver disease(ALD)are difficult to distinguish;NAFLD diagnosis thus requires a limit of alcohol ***,NAFLD and ALD very frequently coexist in the same patient.

关键词： diagnosis intake Alcohol

Memory for location and visual cues in white-eared hummingbirds Hylocharis leucotis

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Current Zoology 2011年第4期57卷 468-476页

作者： guillermo PEREZ Carlos LARA Jose VICCON-PALE Martha SIGNORET-POILLON Doctorado en Ciencias Biologicas Universidad Autonoma Metropolitana. Unidad Xochimilco. Calzada del Hueso 1100 Col. Villa Quietud 04960 Moxico D.F. Moxico Laboratorio de Ecologfa de la Conducta Centro Tlaxcala de Biologfa de la Conducta UAT-UNAM Km 1.5 carretera Tlaxcala- Puebla s/n Colonia Xicohtoncatl Apdo. Postal 262 Tlaxcala Tlaxcala 90070 Moxico. Departamento el Hombre y su Ambiente. Universidad Autdnoma Metropolitana. Unidad Xochimilco. Calzada del Hueso 1100 Col. Villa Quietud 04960 MExico D.F. Mexico

In nature hummingbirds face floral resources whose availability, quality and quantity can vary spatially and temporally. Thus, they must constantly make foraging decisions about which patches, plants and flowers to visit, partly as a function of the nectar reward. The uncertainty of these decisions would possibly be reduced if an individual could remember locations or use visual cues to avoid revisiting recently depleted flowers. In the present study, we carried out field experiments with white-eared hummingbirds Hylocharis leucotis, to evaluate their use of locations or visual cues when foraging on natural flowers Penstemon roseus. We evaluated the use of spatial memory by observing birds while they were foraging between two plants and within a single plant. Our results showed that hummingbirds prefer to use location when foraging in two plants, but they also use visual cues to efficiently locate unvisited rewarded flowers when they feed on a single plant. However, in absence of visual cues, in both experiments birds mainly used the location of previously visited flowers to make subsequent visits. Our data suggest that hummingbirds are capable of learning and employing this flexibility depending on the faced environmental conditions and the information acquired in previous visits [Current Zoology 57 （4）： 468-476, 2011].

关键词： Visual cues Location White-eared hummingbird Foraging