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Chaos Suppression in a Sine Square map through Nonlinear Coupling

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Chinese Physics letters 2011年第11期28卷 45-48页

作者： eduardo l.Brugnago Paulo C.Rech Departamento de Física Universidade do Estado de Santa Catarina89223-100 JoinvilleBrazil

We study a pair of nonlinearly coupled identical chaotic sine square *** specifically,we investigate the chaos suppression associated with the variation of two ***-dimensional parameter-space regions where the chaotic dynamics of the individual chaotic sine square map is driven towards regular dynamics are ***,the dynamics of the coupled system is numerically characterized as the parameters are changed.

关键词： chaotic dynamics Chaos

Recovery of valuable metals from waste cables by employing mechanical processing followed by spouted bed elutriation

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Particuology 2019年第4期17卷 74-80页

作者： eduardo H. Tanabe Roger m. Silva Daliomar l. Oliveira Junior Daniel A. Bertuol Environmental Processes laboratory (lAPAm) Chemical Engineering Department Federal University of Santa Maria - UFSM Santa Maria RS Brazil

Cables and wires, which are essential parts of equipment for the transmission of both information and electricity, contain valuable materials including copper (Cu) and aluminum (Al). This experimental work evaluates the use of mechanical processing (grinding and sieving), followed by spouted bed elutriation, for separation of the valuable materials (steel-coated copper, copper, and aluminum) present in waste coaxial and internet cables. A recovery efficiency of approximately 90% was achieved for the steel-coated copper in coaxial cables. For in ternet cables, the copper recovery efficiency was approximately 87%. These findings dem on strate that it is possible to separate, recover, and recycle the valuable materials (metals) present in waste cables using simple, low-cost, and efficient mechanical processing followed by spouted bed elutriation.

关键词： Waste cable Elutriation Copper Recycling mechanical process

Differential responses to artificial selection on oviposition site preferences in Drosophila melanogaster and D. simulans

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Insect Science 2015年第6期22卷 821-828页

作者： eduardo m. Soto maria I. l. Betti Juan Hurtado Esteban Hasson Departamento de Ecologia Genetica y Evolucion IEGEBA (CONICET-UBA) Facultad de Ciencias Exactas y Naturales Universidad deBuenos Aires Buenos Aires Argentina

The preference-performance relationship in plant-insect interactions is a cen- tral theme in evolutionary ecology. Among many insects, eggs are vulnerable and larvae have limited mobility, making the choice of an appropriate oviposition site one of the most important decisions for a female. We investigated the evolution of oviposition preferences in Drosophila melanogaster meigen and Drosophila simulans Sturtevant by artificially selecting for the preference for 2 natural resources, grape and quince. The main finding of our study is the differential responses of D. melanogaster and D. simulans. Although preferences evolved in the experimental populations of D. melanogaster, responses were not consistent with the selection regimes applied. In contrast, responses in D. simulans were consistent with expectations, demonstrating that this species has selectable genetic variation for the trait. Furthermore, crosses between D. simulans divergent lines showed that the genetic factors involved in grape preference appear to be largely recessive. In summary, our artificial selection study suggests that D. melanogaster and D. simulans possess different genetic architectures for this trait.

关键词： artificial selection behavior Drosophila genetic variation naturalresources oviposition preference

Foliar application of rare earth elements on soybean(Glycine max(l)):Effects on biometrics and characterization of phytotoxicity

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Journal of Rare Earths 2020年第10期38卷 1131-1139,I0005页

作者： eduardo S.Rodrigues Gabriel S.montanha Joao P.R.marques eduardo de Almeida lauren N.m.Yabuki Amauri A.menegario Hudson W.Pereira de Carvalho laboratory of Nuclear Instrumentation(lIN) Center for Nuclear Energy in Agriculture(CENA)University of Sao Paulo(USP)PiracicabaSP13416-000Brazil Environmental Studies Center Sao Paulo State University(UNESP)Rio ClaroSP13506-900Brazil

This study aims at investigating the effects of foliar application of aqueous solutions of la3+and Ce3+nitrates on soybean plants(Glycine max).First,we observe that Triton HW 1000 surfactant at 0.01 vol%reduces droplets contact angle and increases their drying *** greenhouse conditions,the foliar treatments do not affect chlorophyll content,plant height,number of leaves,number of pods,number of seeds per pod,and average seed ***,the treatments induce phytotoxicity since foliar injuries appear after the *** X-ray fluorescence spectroscopy combined to scanning electron microscopy shows that the leaf lesions are positively correlated to accumulation of Ce and la on the leaf surface and also promote structural alteration to the epidermal cells.X-ray absorption near edge structure shows that the la and Ce nitrates are partially bio transformed into oxides by the leaves which might explain the harmful effects.

关键词： leaf fertilization Rare earth elements Soybean X-ray fluorescence spectroscopy X-ray absorption spectroscopy

Predictive models of drought tolerance indices based on physiological,morphological and biochemical markers for the selection of cotton(Gossypium hirsutum l.)varieties

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Journal of Integrative Agriculture 2022年第5期21卷 1310-1320页

作者： Yeison m QUEVEDO liz P mORENO eduardo BARRAGAN Colombian Corporation for Agricultural Research AGROSAVIA日Espinal 733529Colombia Faculty of Agricultural Sciences National University of ColombiaBogota D.C 111321Colombia

The use of tolerant crop varieties is a strategy that mitigates the water deficit effect in a sustainable *** generation of these varieties is more efficient when variables associated with this tolerance have been identified,since they can facilitate the breeding *** study aimed to establish the relationships between water deficit tolerance of four cotton varieties(Nevada-123,Oasis-129,Guatapuri,and Festivalle)and morphological variables(monopodial branches,boll weight,root/shoot ratio,and leaf and root dry matter),physiological variables(relative water content,net photosynthesis,stomatal conductance,electron transport rate,photochemical quenching,photochemical efficiency of PSII,chlorophyll a/b ratio(Chl a/b),C^(12)/C^(13)isotope ratio,and electrolyte leakage),and biochemical variables(contents of sugars,proline,carotenoids,and malondialdehyde).Furthermore,calibrated predictive models of the drought tolerance indices were developed based on the key variables *** this purpose,a pot experiment was established where plants were subjected to a moderate or severe water deficit during the blooming stage for 12 *** stress tolerance index(STI)and mean productivity(mP)were *** the evaluated variables,the differences between well-watered and water deficit plants(Δ)were calculated and ANOVA,partial least squares,Pearson’s correlation,and multiple linear regression analyzes were performed.A model was generated that explained 95% of the STI and was composed of Δmalondialdehyde,Δproline,and Δboll *** mP,the model was comprised of Δstomatal conductance,Δroot/shoot ratio,and ΔChl a/b,and explained 89% of the *** analysis of the assessed variables allowed the identification of key variables and the development of calibrated predictive models that can be used in screening to obtain cotton varieties with different levels of water deficit tolerance.

关键词： drought tolerance tolerance index proline chlorophyll stomatal conductance malondialdehyde yield multivariate analysis

Numerical analysis of rapid drawdown: Applications in real cases

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Water Science and Engineering 2016年第3期9卷 175-182页

作者： eduardo E. Alonso Nuria m. Pinyol Department of Civil and Environmental Engineering Universitat Politecnica de Catalunya (UPC) Barcelona 08034 Spain Centre Internacional de metodes Numerics en Enginyeria (CImNE) Barcelona 08034 Spain

In this study, rapid drawdown scenarios were analyzed by means of numerical examples as well as modeling of real cases with in situ measurements. The aim of the study was to evaluate different approaches available for calculating pore water pressure distributions during and after a drawdown. To do that, a single slope subjected to a drawdown was first analyzed under different calculation alternatives, and numerical results were discussed. Simple methods, such as undrained analysis and pure flow analysis, implicitly assuming a rigid soil skeleton, lead to significant errors in pore water pressure distributions when compared with coupled flow-deformation analysis. A similar analysis was performed for the upstream slope of the Glen Shira Dam, Scotland, and numerical results were compared with field measurements during a controlled drawdown. Field records indicate that classical undrained calculations are conservative but unrealistic. Then, a recent case of a major landslide triggered by a rapid drawdown in a reservoir was interpreted. A key aspect of the case was the correct characterization of permeability of a representative soil profile. This was achieved by combining laboratory test results and a back analysis of pore water pressure time records during a period of reservoir water level fluctuations. The results highlight the difficulty of predicting whether the pore water pressure is overestimated or underestimated when using simplified approaches, and it is concluded that predicting the pore water pressure distribution in a slope after a rapid drawdown requires a coupled flow-deformation analysis in saturated and unsaturated porous media.

关键词： Hydro-mechanical coupling Coupled flow-deformation analysis Numerical analysis Drawdown landslide Pore water pressure

lipophagy and epigenetic alterations are related to metabolic dysfunction-associated steatotic liver disease progression in an experimental model

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World Journal of Hepatology 2024年第12期16卷 1468-1479页

作者： Felipe Schütz larisse longo melina Belén Keingeski eduardo Filippi-Chiela Carolina Uribe-Cruz mário ReisÁlvares-da-Silva Graduate Program in Gastroenterology and Hepatology Universidade Federal do Rio Grande do SulPorto Alegre 90035-007Rio Grande do SulBrazil Experimental laboratory of Hepatology and Gastroenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007Rio Grande do SulBrazil Center of Biotechnology Universidade Federal do Rio Grande do SulPorto Alegre 90035-003Rio Grande do SulBrazil Department of morphological Sciences Universidade Federal do Rio Grande do SulPorto Alegre 90035-003Rio Grande do SulBrazil Facultad de Ciencias de la Salud Universidad Católica de las MisionesPosadas 3300MisionesArgentina Division of Gastroenterology Hospital de Clínicas de Porto AlegrePorto Alegre 90035-007Rio Grande do SulBrazil Conselho Nacional de Desenvolvimento Científico e Tecnológico Brasilia 71.605-001Distrito FederalBrazil

BACKGROUND Genetic and epigenetic alterations are related to metabolic dysfunction-associated steatotic liver disease(mASlD)*** To evaluate micro(mi)RNAs and lipophagy markers in an experimental model of metabolic dysfunction-associated steatohepatitis(mASH).mETHODS Adult male Sprague Dawley rats were randomized into two groups:Control group(n=10)fed a standard diet;and intervention group(n=10)fed a high-fat-choline-deficient diet for 16 *** evaluation of li-pophagy markers in liver tissue[sirtuin-1,p62/sequestosome-1,transcription factor-EB,perilipin-2(Plin2),Plin3,Plin5,lysosome-associated membrane proteins-2,rubicon,and Cd36],and serum miRNAs were *** Animals in the intervention group developed mASH and showed a significant decrease in sirtuin-1(P=0.020)and p62/sequestosome-1(Plin2(P=0.003),Plin3(P=0.031),and Plin5(P=0.005)compared to the control *** was no significant difference between groups for lysosome-associated membrane proteins-2(P=0.715),rubicon(P=0.166),and Cd36(P=0.312).The intervention group showed a significant increase in miR-34a(P=0.005)and miR-21(P=0.043)compared to the *** was no significant difference between groups for miR-375(P=0.905),miR-26b(P=0.698),and miR-155(P=0.688).CONClUSION Animals with mASH presented expression changes in markers related to lysosomal stress and autophagy as well as in miRNAs related to inflammation and fibrogenesis,processes that promote mASlD progression.

关键词： Animal model Epigenetic lipophagy microRNAs metabolic dysfunction-associated steatotic liver disease metabolic dysfunction-associated steatohepatitis

Friction characteristics of confined inflatable structures

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Friction 2014年第4期2卷 365-390页

作者： eduardo m.SOSA Gregory J.THOmPSON Ever J.BARBERO Subhadeep GHOSH Kevin l.PEIl Department of Civil and Environmental Engineering West Virginia UniversityMorgantownWV 26506-6103USA Department of mechanical and Aerospace Engineering West Virginia UniversityMorgantownWV 26506-6106USA

The availability of high‐strength fabrics and progress in the development of large‐scale inflatable technology made possible the creation of temporary and quickly deployable structures for protection of underground *** structures are relatively lightweight and portable,and can maintain the required rigidity while in *** benefits have prompted the development of inflatable structures for use in confined spaces,such as tunnels and large‐diameter pipes to act as barriers for containing flooding with minimal infrastructure *** work presents experimental results obtained from the evaluation of frictional characteristics of the fabric material that constitute the structural membrane of confined inflatable structures developed for protection of underground transportation tunnels and other large *** tests at coupon level and slippage tests in a reduced‐scale inflatable structure were performed in order to evaluate the frictional characteristics of Vectran *** at coupon level were performed to determine the friction coefficient for different surface types and *** with the reduced‐scale inflatable structure contributed to the understanding of the friction characteristics at system level when subjected to different pressurization or depressurization sequences designed to induce *** results indicate that friction coefficient values at coupon level are about 29 percent higher than values derived from reduced‐scale tests.

关键词： friction fabric materials inflatable structures slippage Vectran

Quasi-Optimal Convergence Rate of an AFEm for Quasi-linear Problems of monotone Type

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Numerical mathematics(Theory,methods and Applications) 2012年第2期5卷 131-156页

作者： eduardo m.Garau Pedro morin Carlos Zuppa Departamento de matemática Facultad de Ingeniería Química and Instituto de Matemática Aplicada del Litoral(Universidad Nacional del Litoral and Consejo Nacional de Investigaciones Científicas y Técnicas).Güemes 3450.S3000GLN Santa FeArgentina Departamento de matemática Facultad de Ciencias Físico Matemáticas y NaturalesUniversidad Nacional de San LuisChacabuco 918D5700BWT San LuisArgentina

We prove the quasi-optimal convergence of a standard adaptive finite element method(AFEm)for a class of nonlinear elliptic second-order equations of monotone *** adaptive algorithm is based on residual-type a posteriori error estimators and Dörfler’s strategy is assumed for *** first prove a contraction property for a suitable definition of total error,analogous to the one used by Diening and Kreuzer(2008)and equivalent to the total error defined by Cascón ***.(2008).This contraction implies linear convergence of the discrete solutions to the exact solution in the usual H1 Sobolev ***,we use this contraction to derive the optimal complexity of the *** results are based on ideas from Diening and Kreuzer and extend the theory from Cascón *** a class of nonlinear problems which stem from strongly monotone and lipschitz operators.

关键词： quasilinear elliptic equations adaptive finite element methods optimality