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Fault Location Approach to Distribution Networks Based on custom State Estimator

Journal of Modern Power Systems and clean Energy 2023年第6期11卷 1878-1889页

作者： Luis F.Ugarte madson c.de almeida Luís H.T.Bandória IEEE department of Systems and Energy State University of CampinasSão Paulo 13083-970Brazil

This paper presents a properly designed branchcurrent based state estimator(BcBSE)used as the main core ofan accurate fault location approach(FLA)devoted to distribution *** to the approaches available in the literature,it uses only a limited set of conventional measurementsobtained from smart meters to accurately locate faults at busesor branches without requiring measurements provided by phasor measurement units(PMUs).This is possible due to themethods used to model the angular reference and the faultedbus,in addition to the proper choice of the weights in the stateestimator(SE).The proposed approach is based on a searchingprocedure composed of up to three stages:①the identificationof the faulted zones;②the identification of the bus closest tothe fault;and③the location of the fault itself,searching onbranches connected to the bus closest to the ***,this paper presents a comprehensive assessment of the proposedapproach,even considering the presence of distributed generation,and a sensitivity study on the proper weights required bythe SE for fault location purposes,which can not be found inthe *** show that the proposed BcBSE-basedFLA is robust,accurate,and aligned with the requirements ofthe traditional and active distribution networks.

关键词： Active distribution network branch current based state estimator fault location smart meter

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Impacts of land use and land cover changes on hydrological processes and sediment yield determined using the SWAT model

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International Journal of Sediment Research 2022年第1期37卷 54-69页

作者： Edivaldo Afonso de Oliveira Serr?o madson Tavares Silva Thomás Rocha Ferreira Lorena concei??o Paiva de Ataide cleber Assis dos Santos Aline Maria Meiguins de Lima Vicente de Paulo Rodrigues da Silva Francisco de Assis Salviano de Sousa denis José cardoso Gomes Ac.demic Unit of Atmospheric Sciences Federal University of Campina Grande department of Physics Center for Natural and Exact Sciences Federal University of Santa Maria Institute of Technology Civil Engineering Graduate Program Federal University of Pará Earth System Science center National Institute of Space Research Institute of Geosciences Federal University of Pará

Land use and land cover (LULc) changes strongly affect local hydrology and sediment *** current study focused on a basin in the Brazilian Amazon and had the following three objectives:(1) to perform an effective diagnosis of flow and sediment yield,(2) to evaluate the impacts of LULc changes over the last 40 years on the hydro-sedimentological variables,and (3) to investigate the impacts of the possible trends or breaking points in the flow,surface runoff,and sediment yield *** Soil and Water Assessment Tool (SWAT) model validation showed that the simulated results were consistent with the data measured in the dynamic reproduction of flow ***,changes in LULc altered surface runoff,sediment yield,and flow according to the Mann-Kendall and Pettitt non-parametric *** was also observed that the sub-basins in which pastureland is predominant are more susceptible to increased surface runoff and sediment *** to trend and homogeneity tests,these sub-basins had break points in the time series of these *** the other hand,in the sub-basins whose land cover is predominantly forest,the time series is homogeneous and *** current study highlighted the impacts that 40 years of LULc changes in an Amazonian basin had on hydro-sedimentological variables,which,in turn,can play an important role in changing the hydrological cycle,consequently these changes can also impact diverse human activities in the region,such as agribusiness,livestock,energy production,food security,and public water ***,it is concluded that the SWAT model is a good estimator of hydro-sedimentological processes in Amazonian basins and can be used by decision makers in the management of water and environmental resources.

关键词： Hydrological modeling Sediment yield Amazon basin SWAT model

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Does carrier fluid reduce low flow drug infusion error from syringe size?

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World Journal of clinical Pediatrics 2020年第2期9卷 17-28页

作者： Zachary c madson Sitaram Vangala Grace T Sund James A Lin Pediatric Hospitalist Medicine Lutheran Children's HospitalFort WayneIN 46804United States Medicine Statistics core David Geffen School of Medicine at UCLALos AngelesCA 90095United States department of Nursing UCLA Mattel Children's HospitalLos AngelesCA 90095United States department of Pediatrics David Geffen School of Medicine at UCLALos AngelesCA 90095United States

BAcKGROUND critically ill neonates and pediatric patients commonly require multiple low flow *** limitations are imposed by small body habitus and comorbidities like cardiopulmonary disease,renal failure,or fluid *** access is limited by diminutive *** fluids or parenteral nutrition in conjunction with actively titrated infusions such as insulin,fentanyl,prostaglandins,inotropes and vasopressors may necessitate simultaneous infusions using a single lumen to maintain vascular catheter *** requirement for multiple titratable infusions requires concentrated medications at low flows,rather than more dilute drugs at higher flows that in combination may volume overload small *** To determine whether carrier fluid reduces variability that variability of low flow drug infusions is proportional to syringe size in pediatric critical *** We assessed concentrations of orange“drug”in a 0.2 mL/h low flow clinical model with blue dyed carrier fluid at 5 mL/h,using 3-,10-,or 60-mL syringes.A graduated volumetric pipette was used to measure total *** time to target concentration was 30,21,and 46 min in 3-,10-,and 60-mL syringes,respectively(P=0.42).After achieving target concentration,more dilute drug was delivered by 60-mL(Pcompared to 3-mL *** overdoses were observed during the initial 45 min of infusion in 10-and 60-mL *** volumes infused after target concentration were less in the 60-mL condition compared to 3-mL(Pcts models demonstrated lesser delivered drug concentrations in the initial 30 min by 3-mL compared to 10-and 60-mL syringes(P=0.005 and Pctively)but greater drug concentrations and total infused drug in the subsequent 30-60 and 60-90 min intervals with the 3-and 10-mL compared to 60-mL *** With carrier fluid,larger syringes were associated with significantly

关键词： Infusion pumps Intensive care Neonatal Nursing research Patient safety Spectrophotometry Syringes

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Vermicompost for Indigo Blue and congo Red Removal

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Journal of Water Resource and Protection 2021年第6期13卷 419-434页

作者： Joselito Nardy Ribeiro Araceli Veronica F. N. Ribeiro Andre Romero da Silva madson de Godoi Pereira Jairo Pinto de Oliveira Alveriana Tagarro Tomaz Barbara Vitoria Health Science center Federal University of Espirito Santo Vitoria-ES Brazil Federal Institute of Espirito Santo Vila Velha-ES Brazil Federal Institute of Espirito Santo Aracruz-ES Brazil department of Exact and Earth Sciences University of Bahia State Salvador-BA Brazil

The data obtained through this work revealed that the vermicompost is a natural adsorbent able to removal two textile dyes from an aqueous medium. The values of maximum adsorption capacity for congo red (23.25 mg/g) and indigo blue (40.39 mg/g) obtained from the Mathematical Langmuir Model reveal it. The conditions of adsorbent mass, stirring time between adsorbent and dyes were optimized. Additionally, the values of Gibbs free energy demonstrate the predominance of physical interaction between both dyes and vermicompost. Through Langmuir constant values, it was possible to identify similar affinities between both dyes and vermicompost. The value of dimensionless constant indicates favorable adsorptions process. Finally, through physicochemical analysis from scanning electron microscopy and Fourier Transform Infra-Red Spectroscopy, the characteristics of vermicompost were verified revealing essential aspects to efficient adsorbent.

关键词： Vermicompost Adsorption congo Red Indigo Blue

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Banana Peel for Acetylsalicylic Acid Retention

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Journal of Environmental Protection 2016年第12期7卷 1850-1859页

作者： Araceli Veronica F. N. Ribeiro André Romero da Silva Tiago Pereira da cunha Rowenna Tonani L. dos Santos Jairo Pinto de Oliveira Evaldo Vitor Pereira Marcus Vinicius V. J. Licinio madson de Godoi Pereira Arnaud Victor dos Santos Joselito Nardy Ribeiro Instituto Federal do Espirito Santo Campus de Vila Velha Brazil Instituto Federal do Espírito Santo Campus de Aracruz Brazil centro de ciências da Saúde Universidade Federal do Espírito Santo Vitória Brazil departamento de ciências Exatas e da Terra Universidade do Estado da Bahia Salvador Brazil

A method for adsorption involving banana peel (BP) was studied to remove the pollutant acetylsalicylic acid (ASA) in aqueous medium. The results show that bioadsorbent has satisfactory maximum adsorption capacity (2.29 mg/g) for removing this analgesic and anti-inflammatory drug in aqueous solution (pH 7.0) using the Langmuir mathematical model. The tested concentrations of this pollutant were higher than the levels commonly found in the aquatic environment. This and other results suggest the BP as an alternative to ASA removal in water contaminated with pharmaceuticals pollutants.

关键词： Adsorption Banana Peel Acetylsalicylic Acid

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猪圆环病毒2型疫苗对母猪繁殖性能及其胎儿感染的影响

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兽医导刊 2017年第7期 55-56页

作者：黎先伟 D. M. madson 不详

猪圆环病毒2型（PcV2）为圆环病毒科圆环病毒属成员，由Tischer于1974年首先在PK-15细胞中发现。该病毒粒子含有单股负链环状DNA，相对分子量5.8×102，无囊膜，不具有血凝活性，基因组全长大约为1.7kb。PcV2有3个公认的基因型，分别是P... 详细信息

猪圆环病毒2型（PcV2）为圆环病毒科圆环病毒属成员，由Tischer于1974年首先在PK-15细胞中发现。该病毒粒子含有单股负链环状DNA，相对分子量5.8×102，无囊膜，不具有血凝活性，基因组全长大约为1.7kb。PcV2有3个公认的基因型，分别是PcV2a、PcV2b和PcV2c。猪圆环病毒感染的临床表现多种多样，包括肺炎、腹泻、消瘦和母猪繁殖障碍。猪圆环病毒相关疾病（PcVAD）主要用来描述与PcV2感染有关的多系统的临床疾病。

关键词：猪圆环病毒2型猪圆环病毒感染母猪繁殖障碍繁殖性能 PK-15细胞胎儿疫苗 PcV2

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