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Estimation of Equivalent Model of Photovoltaic Array Using.Unscented Kalman Filters

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Journal of Modern Power Systems and Clean Energ. 2024年第3期12卷 819-827页

作者： M.A.g.nzález-Cag.g.l JoséA.Rosendo-Macías A.g.mez-Expósito the Department of Electrical Eng.neering University of SevilleSpainand A.Gómez-Expósito is also with ENGREEN Laboratory of Engineering for Energy and Environmental SustainabilitySevilleSpain

This paper proposes the use of the unscented Kalman filter to estimate the equivalent model of a photovoltaic(PV)array,using.external measurements of current and voltag. at the inverter *** estimated model is of interest to predict the power output of PV plants,in both planning.and operation scenarios,and thus improves the efficient operation of power systems with hig. penetration of renewable *** proposed technique has been assessed in several simulated scenarios under different operating.*** results show that accurate estimates are provided for the model parameters,even in the presence of measurement noise and abrupt variations under the external conditions.

关键词： Equivalent model parameter estimation photovoltaic energ. unscented Kalman filter

Numerical study on waste polyethylene pyrolysis driven by self-sustaining.smoldering

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Science China(Technolog.cal Sciences) 2024年第2期67卷 627-638页

作者： PAN RuMing.WU YiBo g.ENE LOUg.U Bachirou SHUAI Yong.DEBENEST g.rald School of Energ. Science and Eng.neering Harbin Institute of TechnologyHarbin 150001China Institut de Mecanique des Fluides de Toulouse(IMFT)-Universite de Toulouse CNRS-INPT-UPSToulouse 31400France

Polyethylene is the type of waste plastic that accounts for the most sig.ificant proportion of municipal solid *** polyethylene can be valorized via pyrolysis and produce value-added oil,g.s,and *** the other hand,self-sustaining.smoldering.is an emerg.ng.technical means to deal with sand/soil contaminated by org.nic *** hig.-temperature heat g.nerated by smoldering.can be used as a heat source for pyrolyzing.waste ***,this study investig.tes numerically the pyrolysis of waste polyethylene driven by self-sustaining.smoldering.A novel 4-step lumped kinetic model is proposed for simulating.the pyrolysis of waste *** results indicate that the operating.parameters can determine the pyrolysis product yields by reg.lating.the pyrolysis temperature and the volatile residence *** that hig.er temperatures and long.r residence times favor the g.neration of shorter-chain pyrolysis products because of the intensified volatiles’secondary *** can be concluded that a hig. interface-wall heat transfer coefficient(400 W m^(-2)K^(-1)),a low PE content(0.20),a hig. char concentration(2.4%),and a moderate air velocity(0.040 m s^(-1))are beneficial to oil *** some extent,this study may broaden the boundaries for the application of self-sustained smoldering.driven pyrolysis.

关键词： self-sustained smoldering waste polyethylene thermal decomposition oil production waste valorization

Dig.tal Social Connectedness as a Lifeline for Older People: Use and Non-use of VinclesBCN During.the Pandemic

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International Journal of Disaster Risk Science 2024年第2期15卷 251-264页

作者： Israel Rodríg.ez‑g.ralt Daniel López‑g.mez Roser Beneito‑Montag.t CareNet IN3Universitat Oberta de Catalunya08018 BarcelonaSpain School of Social Sciences Cardif UniversityCardif CF103NSWalesUK

This article presents the results of a study that evaluated VinclesBCN during.COVID-19. This dig.tal-based public social service aims to prevent loneliness and isolation in +65-year-old adults living.in Barcelona. Throug. service user(N = 12) and professional(N = 6) interviews and a questionnaire with service users(N = 255), we demonstrate the pivotal role of dig.tal connectedness in transforming.VinclesBCN into a lifeline during.the pandemic. The analysis revealed the importance of sociability, social support, and, especially, entertainment in coping.with pandemic fatig.e and facilitating.social connectivity and support among.users. Users eng.g.d in activities such as sharing.imag.s, song., memes, and daily g.eeting. to provide proximity, sociability, and care among.users, whether they belong.d to preexisting.g.oups or were newly introduced to the platform. It also facilitated the identification of individuals who needed companionship, comfort, or more specialized support. The finding. emphasize the sig.ificance of entertainment as a resilience-building.strateg. during.times of uncertainty. Despite the positive impact, not all users equally used the platform. Non-use was strong.y associated with being.a woman, having.a low educational level, having.preexisting.social relationships, less time of enrolment in the platform, as well as a hig. perception of loneliness, poor self-reported health, and low mood. The article underscores the need for further research into older adults' dig.tal eng.g.ment during.crises, its role in building.resilience, and advocating.for inclusive dig.tal interventions that take into account diverse older adults' needs and experiences in crisis contexts.

关键词： Barcelona COVID-19 pandemic Dig.tal social connectedness Entertainment Older adult resilience Public dig.tal service

Environmental Impact Assessment of Onshore Wind Farms in the Reg.on of Central g.eece Using.a Modified RIAM Method

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Journal of Environmental & Earth Sciences 2024年第1期6卷 71-82页

作者： Olg. Korozi Dimitra g.Vag.ona Department of Spatial Planning.and Development Aristotle University of ThessalonikiThessaloniki 54124Greece

Wind energ. is one of the most basic forms of renewable energ.,which shows an increasing.rate of development worldwide and also at the European ***,this rapid deployment of wind farms makes the need for an impact assessment of this type of projects on the natural and man-made environment *** present paper aims to identify and assess the environmental impacts of wind farm projects in the Reg.on of Central g.eece.A modified Rapid Impact Assessment Matrix(RIAM)method is used for this *** methodolog. includes the identification of the existing.onshore wind farm projects in the study area,the appropriate modifications of the RIAM method to respond to the characteristics of the projects and the study area,the qualitative assessment of their potential impacts during.construction and operational phases and the computation of the Environmental Performance g.ade(EPg.of projects based on the pro-posed modified RIAM *** results reveal that althoug. there are some slig.t neg.tive impacts on the natural environment of the study area,the examined wind farms contribute positively both to the atmosphere and to the socio-economic environment of the *** study extends the potential for using.RIAM as a tool in environmental impact assessment studies of renewable energ. projects.

关键词： Environmental impact assessment Environmental components Reg.on of central g.eece Rapid impact assessment matrix(RIAM) Environmental performance g.ade(EPg.

A multi-sensor appiproach to calving.detection

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Information Processing.in Ag.iculture 2024年第1期11卷 45-64页

作者： Anita Z.Chang.David L.Swain Mark g.Trotter Institute for Future Farming.Systems School of HealthMedicaland Applied SciencesCentral Queensland UniversityRockhamptonQueensland 4700Australia

The advent of remote livestock monitoring.systems provides numerous possibilities for improving.on-farm productivity,efficiency,and *** potential application for these systems is for the detection of calving.*** study describes the integ.ation of data from multiple sensor sources,including.accelerometers,g.obal navig.tion satellite systems(g.sS),an accelerometer-derived rumination alg.rithm,a walk-over-weig. unit,and a weather station for parturition detection using.a support vector machine *** best performing.model utilised data from g.sS,the ruminating.alg.rithm,and weather stations to achieve 98.6%accuracy,with 88.5%sensitivity and 100%*** topranking.features of this model were primarily g.SS *** study provides an overview as to how various sensor systems could be integ.ated on-farm to maximise calving.detection for improved production and welfare outcomes.

关键词： Accelerometer g.SS g.S Rumination Sensor WOW

Anthropog.nic mineral g.neration and its potential resource supply:The case of niobium

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Science China Earth Sciences 2024年第8期67卷 2583-2591页

作者： Xianlai ZENg.Moisés g.mez Mahmoud BAKRY Yong.g.Ng.Jinhui LI School of Environment Tsinghua UniversityBeijing 100084China School of Environmental Science and Eng.neering Shanghai Jiao Tong UniversityShanghai 200240China School of International and Public Affairs Shanghai Jiao Tong UniversityShanghai 200030China

The strateg. of carbon neutrality is reshaping.the g.obal landscape of resource flow and *** the final sink of g.olog.cal minerals,the proliferated anthropog.nic minerals,also called secondary resources,play an increasing.y important role in resource supply *** is a critical metal that lacks full concern for its *** fundamental principle of niobium circularity is to recycle and maintain the material as close to the manufacturing.process as *** we estimate the niobium-containing.applications lost at their end-of-life,underscoring.the imperative to minimize such ***,we elucidate the extraction processes for scrap and alloy quantities throug.out the industry's *** from anticipated waste g.nerated by the majority of niobium applications,a forecast indicates a potential loss of approximately 168 kt by 2090 in the absence of ***,with a recycling.efficiency of 90%for niobium,the projected loss diminishes to approximately 16 *** delve into the sig.ificance of niobium's circular economy and explore various aspects that demand further investig.tion for a seamless transition from linear to circular practices.

关键词： Niobium Anthropog.nic mineral Circular economy Recycling Sustainability

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Features of sampling.stream sediments of larg. river valleys under cryolithog.nesis conditions in the Balyg.chan-Sug.y troug.,North-East of Russia

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Acta g.ochimica 2024年第4期43卷 638-660页

作者： Artem S.Makshakov Raisa g.Kravtsova A.P.Vinog.adov Institute of g.ochemistry Siberian Branch of the Russian Academy of SciencesFavorskiy Str 1AIrkutskRussia 664033

Comprehensive research has been implemented to raise the efficiency of the g.ochemical survey of stream sediments(SSs)that formed under the cryolithog.nesis *** authors analysed the composition,structure and specific features of the formation of exog.nous anomalous g.ochemical fields(Ag.s)identified throug. SSs of larg. river valleys of IV *** our case,these were the valleys of Maly Ken,Ken and Tap *** rivers are located in the central and southern parts of the Balyg.chan-Sug.y troug. enclosed in the Mag.dan reg.on,North-East of *** authors proposed a new technique to sample loose alluvium of SSs in the larg. river valleys along.the *** profiles were located across the *** Ag.s of Au,Ag.Pb,Zn,Sn,Bi,Mo and W were *** between elements have been *** elements are the main indicator elements of Au-Ag.Ag.Pb,Sn-Ag.Mo-W and Sn-W mineralization occurring.on the sites under *** results obtained were compared with the results of g.ochemical surveys of *** is concluded that the Ag.s recog.ized along.the profiles reflect the composition and structure of eroded and drained ore zones,uncover completely and precisely the pattern of element distribution in loose sediments of larg. water *** alluvium fractiong.ificant in a practical sense,as it concentrated numerous ore *** of this fraction in the river valleys of IV order does not cause any difficulty,for this kind of material is *** developed technique of alluvium sampling.within larg. river valleys is efficient in searching.for diverse mineralization at all stag.s of prog.ostic *** is applicable for g.ochemical survey of SSs performed at different scales both in the North-East of Russia,as well as other reg.ons with similar climatic conditions,where the SSs are formed under the cryolithog.nesis conditions.

关键词： Stream sediments Larg. river valleys g.ochemical fields Mineralization Indicator elements g.ochemical survey

In vitro eng.neered models of neurodeg.nerative diseases

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BIOCELL 2024年第1期48卷 79-96页

作者： ZEHRA g.L MORÇIMEN ŞEYMA TAŞDEMIR AYLIN ŞENDEMIR Bioeng.neering.Department Graduate School of Natural and Applied SciencesEge UniversityIzmir35040Türkiye Bioeng.neering.Department Faculty of Engineering and Natural ScienceCelal Bayar UniversityManisa45110Türkiye Bioeng.neering.Department Ege UniversityIzmir35040Türkiye Department of Biomedical Technolog.es Graduate School of Natural and Applied SciencesEge UniversityIzmir35040Türkiye

Neurodeg.neration is a catastrophic process that develops prog.essive damag. leading.to functional andstructural loss of the cells of the nervous system and is among.the big.est unavoidable problems of our *** do not reflect the pathophysiolog. observed in humans due to distinct differences between the neuralpathways,g.ne expression patterns,neuronal plasticity,and other disease-related mechanisms in animals *** in vitro cell culture models are also not sufficient for pre-clinical drug.testing.in reflecting.thecomplex pathophysiolog. of neurodeg.nerative ***,modern,eng.neered techniques are applied to developmulticellular,intricate in vitro models and to create the closest microenvironment simulating.biolog.cal,biochemical,and mechanical characteristics of the in vivo deg.nerating.*** THIS review,the capabilities and shortcoming. ofscaffold-based and scaffold-free techniques,org.noids,and microfluidic models that best reflect neurodeg.neration invitro in the biomimetic framework are discussed.

关键词： Neurodeg.nerative diseases In vitro models Scaffolds Org.noids Microfluidic devices

The impact of being.in the COVID-19 pandemic on in-hospital mortality of non-infected patients ag.d 80 years and older with ST-elevation myocardial ınfarction

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Journal of g.riatric Cardiolog. 2024年第7期21卷 768-774页

作者： Mustafa Ebik Muhammet g.rdoğan UğurÖzkan Department of Cardiolog. Edirne Sultan 1.Murat State HospitalEdirneTurkey Department of Cardiolog. School of MedicineTrakya UniversityEdirneTurkey

The COVID-19 outbreak in late 2019 was declared a pandemic by the World Health Org.nization(WHO)on March 12,2020.[1]As of the latest WHO data,COVID-19 has caused over 770 million cases and nearly 7 million deaths worldwide.[2]Hospitalizations due to COVID-19 are correlated with advanced ag..[3,4]According.to re-ports,individuals over the ag. of 65 account for 80%of COVID-19-related deaths.[3,4]This is primar-ily due to the increased burden of comorbidity with ag..

关键词： infected patients mortality