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Supercritical fluid technology as a sustainable alternative method for textile dyeing:An approach on waste,energy,and CO_(2)emission reduction

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Journal of Environmental Sciences 2024年第6期140卷 123-145页

作者： carlos Rafael Silva de Oliveira Patrícia Viera de Oliveira Leandro Pellenz Catia Rosana Lange de Aguiar Afonso henrique da Silva Júnior Federal University of Santa Catarina Textile Engineering Department2514 João Pessoa St.BlumenauSC89036-004Brazil Federal University of Santa Catarina Chemical Engineering DepartmentS/n Biotério Central St.FlorianópolisSC88040-900Brazil

The clothing industry is considered one of the most polluting industries on the planet due to the high consumption of water,energy,chemicals/dyes,and high generation of solid waste and *** with environmental concerns,the textile ennoblement sector is the most critical of the textile production chain,especially the traditional dyeing *** an alternative to current problems,dyeing with supercritical CO_(2)(scCO_(2))has been presented as a clean and efficient process for a sustainable textile *** fluid dyeing(SFD)has shown a growing interest due to its significant impact on environmental preservation and social,economic,and financial *** main SFD benefits include economy and reuse of non-adsorbed dyes;reduction of process time and energy expenditure;capture of atmospheric CO_(2)(greenhouse gas);use and recycling of CO_(2)in SFD;generation of carbon credits;water-free process;effluent-free process;reduction of CO_(2)emission and auxiliary *** being still a non-scalable and evolving technology,SFD is the future of *** review presented a comprehensive overview of the environmental impacts caused by traditional processes and confronted the advantages of *** SFD technique was introduced,along with its latest advances and future *** and environmental gains were also discussed.

关键词： Textile industry Supercritical dyeing Sustainable processes Water free dyeing Energy saving Cleaner production

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Adjustment of Mathematical Models and the Quality of Drying the Pulped Coffee at Different Air Conditions

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Journal of Agricultural Science and Technology(B) 2019年第1期9卷 38-48页

作者： Paulo Carteri Coradi Reni Saath carlos henrique reinato Flavio Meira Borem Campus Cachoeira do Sul Federal University of Santa Maria Street Ernesto Barros 1345 Cachoeira do Sul RS Brazil State University of Maringa Fazenda Campo Bom 306 Km 105 Zona Rural Box 112 79560-000 Chapadao do Sul MS Brazil Federal Institute of Education Science and Technology of Southern Minas Gerais Street Machado-Paraguacu KM 03 Santo Antonio 37750000 Machado MG Brazil Department of Agriculture Federal University of Lavras University Campus 37200000 Lavras MG Brazil

The aim of the study was to describe the drying kinetics of washed coffee (Coffea arabica L.) and evaluate the best mathematical model to fit the experimental drying data conducted with different air humidity (40%, 50% and 60%), temperatures (23, 40 and 60 °C) and the quality of the coffee. The cherries coffee were separated and standardized in the processes of washing, mechanical and manual separation. Then, approx. 85 kg of coffee cherries were pulped and taken directly to the yard. The washed coffee was completed dried in a mechanical dryer and yard. The results showed that the different conditions of the ambient air significantly influenced the processes of drying. The water content of the hygroscopic equilibrium of pulped coffee is directly proportional to the water activity and relative humidity (RH), decreasing with increasing temperature, for the same value of equilibrium. The Oswin model was best represented by the hygroscopicity of the pulped coffee, while the Midilli model shows the best fit to describe the drying curves of the washed coffee. The effective diffusion coefficient increases with increasing temperature of the drying air and reducing of RH, being described by the Arrhenius equation. Electrical conductivity, potassium leaching, total titratable acidity and grease acidity increase with increasing drying temperature regardless of the type of processing. Reducing sugars, total sugars and the sensorial quality was negatively affected with increasing drying temperature regardless of the type of processing. The drying at 60 °C/40% RH negatively affected the coffee quality.

关键词： Coffea arabica L. drying, mathematical modeling pulped coffee.

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A Finite Element Study of the Influence of Graphite Nodule Characteristics on a Subsurface Crack in a Ductile Cast Iron Matrix under a Contact Load

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Computer Modeling in Engineering & Sciences 2018年第10期117卷 59-71页

作者： Guilherme Suguinoshita carlos henrique da Silva Marco Antonio Luersen Department of Mechanical Engineering Federal University of Technology-Parana(UTFPR)Rua Deputado Heitor Alencar Furtado5000CEP 81280-340CuritibaBrazil

This paper describes a study of the effects of graphite nodule characteristics on a subsurface crack in austempered ductile iron(ADI).A representative specimen of ADI,subjected to sliding contact load,is modeled using finite elements aiming to obtain the shear stress intensity factor(KII).The parameters varied were(i)the nodule diameter(two different values were considered),(ii)the distance between the nodule and the tip of the crack and(iii)the position of the load relative to the tip of the *** results of the numerical simulations show that the smaller diameter nodule has a larger influence on KII,suggesting a higher contact fatigue crack propagation rate in the material with the smaller *** results are the opposite of those observed in experimental studies and would appear to indicate that other factors should be also considered to ensure realistic estimates of the contact fatigue strength of ADI.

关键词： Austempered ductile iron subsurface crack stress intensity factor finite element analysis graphite nodule

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Effects of Imazethapyr-Based Herbicide Formulation in the Zebrafish (Danio rerio) Hepatocyte Cell Line (ZF-L): Cytotoxicity and Oxidative Stress

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Journal of Environmental Protection 2024年第6期15卷 747-765页

作者： Edila Maria Kickhöfel Ferrer Milena Mattes Cerveira Pedro henrique Flores Da Cruz Cleiton Jesus Andrade Pereira Lucas Moraes Berneira Claudio Martin Pereira de Pereira Nathalia Stark Pedra Roselia Maria Spanevello Jean carlos Bauer Vieira Clarissa Piccinin Frizzo Mateus Tavares Kütter Janice Luehring Giongo Rodrigo de Almeida Vaucher Center of Chemical Pharmaceutical and Food Sciences Microorganism Biochemistry and Molecular Biology Research Laboratory (LAPEBBIOM) Federal University of Pelotas (UFPEL) Pelotas Rio Grande do Sul Brazil Center of Chemical Pharmaceutical and Food Sciences Laboratory for Lipidomic and Bio-Organic Research Bioforensic Research Group Federal University of Pelotas (UFPEL) Pelotas Rio Grande do Sul Brazil Center of Chemical Pharmaceutical and Food Sciences Neurochemistry Inflammation and Cancer Laboratory Federal University of Pelotas (UFPEL) Pelotas Rio Grande do Sul Brazil Department of Chemistry Heterocycle Chemistry Center (NUQUIMHE) Federal University of Santa Maria (UFSM) Santa Maria Rio Grande do Sul Brazil Department of Microbiology and Parasitology Biology Institute Federal University of Pelotas (UFPEL) Pelotas Rio Grande do Sul Brazil

Seizures of agrochemical formulations have increased in Brazil and Rio Grande do Sul is among the Brazilian states with the highest number of seizures of these products obtained illicitly. The use of illicit formulations can cause significant harm to agricultural production, the environment, and non-target species. This study evaluated the cytotoxicity and oxidative stress of a seized formulation containing the herbicide imazethapyr (IMZT). Characterization of the herbicide included gas chromatography-mass spectrometry (GC-MS) and thermal analyses (thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC)). Hemolytic and cytotoxicity assays in ZF-L hepatic cells showed IC50 values of 12.75 µg/mL, 3.01 µg/mL, 2.67 µg/mL, and 1.61 µg/mL for erythrocytes, [3(4,5-dimethyl)-2 bromide-5 diphenyl tetrazolium] (MTT), neutral red (NR), and lactate dehydrogenase (LDH) assays, respectively. The median IC50 of 2.84 µg/mL was used in oxidative stress assays, revealing increased reactive oxygen species (ROS) production, reduced total sulfhydryl content, and decreased superoxide dismutase (SOD) and catalase (CAT) activity. This study is the first to report in vitro oxidative stress induced by IMZT in the ZF-L cell line, emphasizing the importance of in vitro assays for assessing the toxic effects of seized agrochemicals on human health and the environment.

关键词： Agrochemical Imidazolinone Zebrafish Cell Viability Oxidative Damage

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Short-term microbial responses to soluble inorganic P input in a tropical lowland rain forest in Amazonia

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Pedosphere 2021年第6期31卷 964-972页

作者： Yuri W.L.DE SOUSA Erika BUSCARDO carlos A.N.QUESADA henrique E.M.NASCIMENTO Laszlo NAGY National Research Institute for Amazonia Manaus 69067-375(Brazil) Department of Forestry University of BrasiliaBrasilia 70910-900(Brazil) Centre for Functional Ecology University of CoimbraCoimbra 3000-456(Portugal) Department of Animal Biology University of CampinasCampinas 13083-862(Brazil)

In non-flooded lowland rain forests with low soil phosphorus(P)in parts of Amazonia,P cycling largely occurs via leaf litter recycling by arbuscular mycorrhizal(AM)fungal *** high input of P into these ecosystems occurs during drought years with increased *** the length and frequency of drought events are projected to increase in the region,a single-dose nutrient addition experiment was carried out to test how this would impact P *** application rate of 4 kg P ha^(-1) was used,which corresponds to twice the amount of litter-derived P in an average *** was hypothesized that i)the added mineral P would be immobilized by soil microorganisms,leading to measurable increase in soil microbial biomass carbon(C)and P and ii)AM colonization rate would be reduced by the pulse in mineral P available for plant *** results did not support either of our *** addition of P did not have an effect on AM root colonization,nor was P immobilized by soil microbiota during the experimental *** lack of a difference between the control and treatment at our study site could be attributed to the relatively low one-off dose of P applied that did not change either the colonization rate of roots by AM fungi or the amount of soil available labile *** obtain a mechanistic understanding of the availability,capture,and use of P by plant-symbiont associations in tropical rain forest ecosystems,further integrated studies of the soil-plant system combining long-term nutrient manipulations,modeling,and experimental approaches are required.

关键词： Amazon basin arbuscular mycorrhizal fungi nutrient addition phosphorus cycling soil microbial biomass

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A methodology for coffee price forecasting based on extreme learning machines

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Information Processing in Agriculture 2022年第4期9卷 556-565页

作者： Carolina Deina Matheus henrique do Amaral Prates carlos henrique Rodrigues Alves Marcella Scoczynski Ribeiro Martins Flavio Trojan Sergio Luiz Stevan Jr Hugo Valadares Siqueira Department of Production Engineering Federal University of Rio Grande do Sul90.035-190Brazil Department of Electronics Federal University of TechnologyParana 84017-220Brazil Graduate Program in Production Engineering Federal University of TechnologyParana 84017-220Brazil

This work introduces a methodology to estimate coffee prices based on the use of Extreme Learning *** process is initiated by identifying the presence of nonstationary components,like seasonality and *** components are withdrawn if they are ***,the temporal lags are selected based on the response of the Partial Autocorre-lation Function *** predictors,we address the following models:Exponential Smooth-ing(ES),Autoregressive(AR)and Autoregressive Integrated and Moving Average(ARIMA)models,Multilayer Perceptron(MLP)and Extreme Learning Machines(ELMs)neural *** computational results based on three error metrics and two coffee types(Ara-bica and Robusta)showed that the neural networks,especially the ELM,can reach higher performance levels than the other *** methodology,which presents preprocess-ing stages,lag selection,and use of ELM,is a novelty that contributes to the coffee prices forecasting field.

关键词： Coffee price forecasting Linear models Artificial neural networks Computational intelligence

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A Bidimensional Finite Element Study of Crack Propagation in Austempered Ductile Iron

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Computers, Materials & Continua 2023年第11期77卷 1411-1424页

作者： Gustavo von Zeska de França Roberto Luís de Assumpção Marco Antonio Luersen carlos henrique da Silva Department of Mechanical Engineering Federal University of Technology–ParanáCuritiba81280-340Brazil

Austempered ductile iron(ADI)is composed of an ausferritic matrix with graphite nodules and has a wide range of applications because of its high mechanical strength,fatigue resistance,and wear resistance compared to other cast *** amount and size of the nodules can be controlled by the chemical composition and austenitizing *** the nodules have lower stiffness than the matrix and can act as stress concentrators,they influence crack ***,the crack propagation mechanism in ADI is not yet fully *** this study,we describe a numerical investigation of crack propagation in ADIs subjected to cyclic *** numerical model used to calculate the stress intensity factors in the material under the given conditions is built with the aid of Abaqus commercial finite element *** crack propagation routine,which is based on the Paris law,is implemented in *** results of the simulation show that the presence of a nodule generates a shear load on the crack ***,even under uniaxial tensile loading,the presence of the nodule yields a non-zero stress intensity factor in mode II,resulting in a deviation in the crack propagation *** is the primary factor responsible for changing the crack propagation direction towards the *** the parameters,for example,increasing the nodule size or decreasing the distance between the nodule and crack tip,can intensify this *** simulations comparing two different ADIs with the same graphite fraction area,the crack in the material with more nodules reaches another nodule in a shorter propagation time(or shorter number of cycles).This suggests that the high fatigue resistance observed in ADIs may be correlated with the number of nodules intercepted by a crack and the additional energy required to nucleate new *** summary,these findings contribute to a better understanding of crack propagation in ADIs,provide insights into the relationship between the presence

关键词： Austempered ductile iron(ADI) fatigue crack propagation graphite nodule

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Unpaved rural roads as source areas of sediment in a watershed of the Brazilian semi-arid region

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International Journal of Sediment Research 2019年第5期34卷 475-485页

作者： Teresa Raquel Lima Farias Pedro henrique Augusto Medeiros Joaquín Navarro-Hevia José carlos de Araújo Federal Institute of Education Science and Technology of Ceará University of Valladolid Campus La Yutera Federal University of Ceará Department of Agricultural Engineering Campus do Pici

Approximately 80% of the road network in Brazil is unpaved and shows evidences of a high erosion potential. In the semi-arid Caatinga Biome in the northeast of the country, a monitoring programme has been done for two years in order to analyze runoff and sediment production from unpaved rural roadways and from embankments. Sediment production ranged from 0.30 to 0.92 Mg/ha yr, higher than in undisturbed areas, but generally lower than that reported for unpaved roads in other regions. However,this is a semi-arid area with low rainfall and runoff and, hence, with a limited hydrological connectivity and sediment production. Sediment production on an embankment with no vegetation was around ten times higher than on an embankment with vegetation. On the road surface, annual sediment production(normalized for gradient) in a section with traffic was three times higher than for a road surface without traffic. In addition, events that occurred after roadway maintenance activities generated peaks of sediment concentration of over 5000 mg/L. These results suggest that sediment production from roads and embankments with bare surfaces is at least one order of magnitude higher than in undisturbed catchment areas. Maintenance activity and vehicle traffic contribute to an increase in sediment availability and impact on the sediment concentration, but less intensely on sediment loads, which depend on the runoff magnitude of the events occurring after roadway maintenance. It was also found that the natural vegetation of the semi-arid region potentially captures sediment on roadway embankments; thereby playing an important role in breaking connectivity between the sediment flow from unpaved roads and the natural drainage system of the catchment.

关键词： Sediment production Caatinga vegetation Road maintenance Embankment

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First occurrence of Neralsia splendens (Borgmeier) (Hymenoptera: Figitidae) as parasitoids of <i>Cyrtoneurina pararescita</i>(Couri) (Diptera: Muscidae) in a rural area in Brazil

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Agricultural Sciences 2014年第1期5卷 84-86页

作者： carlos henrique Marchiori Federal Institute Goiás Morrinhos Goiás Brazil

Figitidae behave as primary parasitoids of dipterous larvae that develop in the feces of cattle and agricultural pests such as fruit flies (Tephritidae) on fruit, Zaprionus indianus Gupta (Diptera: Drosophilidae) in fig cultivations, and Dettmeria euxestae Borgmeier, 1935 (Hymenoptera: Figitidae) in Euxesta eluta Loew, 1996 (Diptera: Otitidae) in corn. Neralsia splendens (Borgmeier 1935) (Hymenoptera: Figitidae), is a larval parasitoid of Diptera. The muscid genus Cyrtoneurina Giglio-Tos is one of the most abundant Phaoniine groups in the Neotropics. It may be of some hygienic importance because of the semidomestic habits of the adults of several species and the environment in which the coprophagous larvae develop. In the Neotropical region, few studies have been conducted on this group. This paper reports the first occurrence of N. splendens parasitizing C. pararescita in a rural area inBrazil. The study was conducted at the farm of the Veterinary andZootechnicsSchoolof the Federal University of Goiás, inGoiania,Brazil, next to corn and sorghum plantations. The dipterous pupae were obtained by means of the flotation method. They were individually placed in gelatin capsules until the emergence of the dipterous insects and/or their parasitoids. Two specimens were collected from 26 pupae of C. pararescita. The percentage of parasitism was 0.35%. The present study is the first in the world to report the occurrence of N. splendens parasitizing C. pararescita.

关键词： Insecta Diptera Biocontrol Goiás Brazil

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Is there a window of opportunity to optimize trastuzumab cardiac monitoring?

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World Journal of Cardiology 2022年第7期14卷 403-410页

作者： Bruno henrique Rala de Paula Maria Eduarda Teixeira Ferro Costa carlos Augusto Moreira de Sousa JoséBines Sarah Cannon Research Institute London W1G 6ADUnited Kingdom Department of Cardiology Hospital do Câncer III-Instituto Nacional de CâncerRio de Janeiro 20560-121Brazil Departamento de Tecnologias da Informação e Educação em Saúde(DTIES) da Faculdade de Ciências Médicas(FCM)na Universidade do Estado do Rio de Janeiro(UERJ)Rio de Janeiro 20550-170Brazil Department of Medical Oncology Instituto Nacional de CâncerRio de Janeiro 20560-121Brazil

BACKGROUND It remains unclear whether the current arbitrary screening recommendations of trastuzumab-related cardiotoxicity provides an adequate balance between preventing heart damage and curtailing a curative *** To determine the incidence rate and consequences of trastuzumab-induced cardiotoxicity as adjuvant treatment in a real-world *** We present a retrospective analysis of cardiac function measured by echocardiogram at baseline and every 3 mo during trastuzumab *** was defined as a drop in left ventricular ejection fraction(LVEF)≥10%from baseline and/or any drop<50%.RESULTS Between January 2011 and December 2014,407 patients were ***(93.6%)were treated with an anthracycline followed by a taxane-based regimen and trastuzumab for 12 *** patients(9.8%)had *** of them were symptomatic,and 28(72.5%)completely recovered *** happened early as shown by LVEF measured on echocardiogram 2 to 4 as compared to 5 to 7(odds ratio=2.47,95%confidence interval:1.09,5.63,P=0.024).There were 54 deaths(13.3%)during the 70-mo follow-up period;1(0.2%)was attributed to late cardiotoxicity(4 years after treatment).The absence of symptomatic cardiotoxicity during trastuzumab treatment and moreover the early occurrence on the treatment period may translate into a strategy to evaluate less *** We observed a 10%rate of asymptomatic cardiotoxicity,which mirrors the results from the large adjuvant *** being transient,an LVEF drop led to frequent treatment delays and *** remains unclear whether LVEF decline is predictive of late cardiotoxicity,and treatment efficacy is compromised.

关键词： Cardiac toxicity Ventricular Dysfunction Heart failure Trastuzumab Breast cancer

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