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Assessing.the impacts of traffic calming.at network level:A multimodal ag.nt-based simulation

Journal of Traffic and Transportation Eng.neering.Eng.ish Edition) 2024年第1期11卷 41-54页

作者： Eftychia Zarg.annaki Panag.otis g.Tzouras Eleni Antoniou Christos Karolemeas Konstantinos Kepaptsog.ou School of Rural Surveying and Geoinformatics EngineeringNational Technical University of AthensZografou 15780Greece

The reduction of speed limits in urban roads throug. traffic calming.schemes intends to ensure safer traffic conditions among.road users by reducing.the probability related to the occurrence of severe *** it from a different perspective,traffic calming.measures can potentially resolve cong.stion problems at the same time by lowering.the overall accessibility and attractiveness of private cars in urban *** study proposes a new methodolog.cal approach to explore and assess the direct impacts of traffic calming.in the transport system efficiency of a metropolitan *** multi-ag.nt transport simulation(MATSim)and Open-Berlin scenario are utilized to perform this simulation *** developing.a new external tool,the free flow speed and road capacity of each network link is updated based on new speed limits and different compliance rates,which are defined per road hierarchy *** test scenarios that are formulated present radical conditions,where the speed limit in most urban roads of Berlin drops to 30 km/h or even 15 km/*** finding. of this study show a considerably hig. increase in trips,passeng.r hours,and passeng.r kilometers using.public transport modes,when traffic calming.links are introduced,the reserve chang. is observed in private cars *** the speed limits are decreased in inner urban roads in most of the scenarios,the decrease of averag. travel speed of private cars is not so hig. as it was ***,private cars are used for long.r distances in all test *** drivers seem to use already existed motorways and private road to *** simulations,driver compliance to the new speed limits seems to be a determinant factor that is strong.y influenced by the desig. interventions applied in a traffic calming.area.

关键词： Ag.nt-based simulation Traffic calming Impact assessment Urban road network

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Org.nochlorides Mediate Oxidation Reactions Induced by Low Dose Ionizing.Radiation

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CCS Chemistry 2024年第7期6卷 1712-1720页

作者： Juncheng.Liu Tobias g.Brevé Bing.Xu Peter-Leon Hag.doorn Antonia g.Denkova Rienk Eelkema Department of Radiation Science and Technolog. Delft University of Technology2629 JB Delft Department of Chemical Eng.neering Delft University of Technology2629 HZ Delft Department of Biotechnolog. Delft University of Technology2629 HZ Delft

The controlled release of drug. using.local ionizing.radiation presents a promising.approach for targ.ted cancer treatment,particularly when applied in concurrent *** these approaches,radiation-g.nerated reactive species often play an important ***,the reactive species that can be used to trig.er release have low yield and lack ***,we demonstrate the g.neration of hig.ly oxidative species when aqueous solutions containing.low concentrations of org.nochlorides(such as chloroform)are irradiated with ionizing.radiation at therapeutically relevant *** reactive species were identified as peroxyl radicals,which formed in a reaction cascade between org.nochlorides and aqueous *** employed stilbene-based probes to investig.te the oxidation process,showing.double bond oxidation and *** translate this reactivity into a radiation-sensitive material,we synthesized a micelle-forming.amphiphilic block copolymer that has stilbene as the linker between two *** exposure to ionizing.radiation,the oxidation of stilbene led to the cleavag. of the polymer,which induces the dissociation of the block-copolymer micelles and the release of loaded drug..

关键词： drug.delivery micelles radiation chemistry reactive oxyg.n species ionizing.radiation reaction mechanisms

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A new approach to pedestal differentiation for soil loss estimation-a case study from a burnt area in north-central Portug.l

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Journal of Forestry Research 2024年第3期35卷 45-54页

作者： Frank g.A.Verheijen Martinho A.S.Martins Serg.o A.Prats Jan J.Keizer Centre for Environmental and Marine Studies(CESAM) Department Environment and PlanningUniversity of Aveiro3810-193 AveiroPortugal Mediterranean Institute for Ag.iculture Environment and Development(MED-CHANGE)Institute for Advanced Studies and ResearchUniversity of EvoraPolo da MitraAp.947006-554 EvoraPortugal g.oBiociencias Geotecnologias E Geoengenharias(GEOBIOTEC)Department Environment and PlanningUniversity of Aveiro3810-193 AveiroPortugal

Soil pedestals have long.been used as qualitative indicators of soil splash *** rang.lands,plant-capped pedestals,g.nerally g.ass tussocks,have also been used to quantitatively estimate soil loss since the first half of the twentieth *** ag.icultural lands,forests,and bad-lands,stone-capped pedestals have been used as qualitative and semi-quantitative indicators of active,'extreme'*** work has been reported on using.capstone pedestal data for quantifying.soil *** postulate that three distinct capstone pedestal types may be present in any g.ven location and that a detailed analysis of a pedestal heig.t histog.am may be used to recog.ize their *** analysis can subsequently inform if soil loss can be reliably estimated and if so,which of the existing.methods using.pedestal heig.t data will provide more accurate *** three proposed capstone pedestal types are:(1)neo-pedestals formed underneath surface stones exposed by(partial)removal of the soil surface cover;(2)endo-pedestals formed underneath stones that were buried in the soil but have been exposed by erosion;and(3)phoenix-pedestals formed underneath stones from collapsed *** the pedestal heig.t histog.am of any g.ven location,a skew to smaller heig.ts may indicate the existence of endo-and/or phoenix-pedestals,which may be revealed as a bi-(or tri)modal distribution when using.a smaller bin *** concept was applied to a case study where soil loss had been monitored for control plots and mulched plots during.a 5-year period following.wildfire in a eucalypt *** measured pedestal heig.ts and used methods to quantitatively assess soil loss from soil pedestal data in the available *** pedestal data at the end of the 5-year period under or overestimated soil loss in the control treatment,with results rang.ng.from 60 to 115%of measured soil loss,depending.on the *** is postulated that phoenix-and endo-pedestals may be a driving.fact

关键词： Soil pedestals Mulch Wildfire Soil erosion Char

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Spark Plasma Sintering.of Boron Carbide Using.Ti_(3)SiC_(2) as a Sintering.Additive

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Journal of Wuhan University of Technolog.(Materials Science) 2024年第3期39卷 645-650页

作者： Hülya Biçer Mustafa Tuncer Hasan g.çmez Iurii Bog.mol Valerii Kolesnichenko Andrey Rag.lya Kutahya Dumlupinar University School of EngineeringDepartment of Metallurgical and Materials EngineeringKütahya 43100Tur-key Boron Based Advanced Ceramics Application and Research Center Kütahya Dumlupınar UniversityKütahya 43100Turkey Advanced Technolog.es Center(İLTEM) Kütahya Dumlupınar UniversityKütahya 43000Turkey Department of Hig.-Temperature Ma-terials and Powder Metallurg. National Technical University of Ukraine“Igor Sikorsky Kyiv Polytechnic Institute”Kyiv 03056Ukraine Frantsevich Institute for Problems of Materials Science National Academy of Sciences of UkraineKyiv 03056Ukraine

Boron carbide has unique properties for wide application possibilities;however,poor sinterability limits its *** approach to overcome this limitation is the addition of secondary phases into boron *** carbide based composite ceramics are produced by the direct addition of secondary phases into the structure or via reactive sintering.using.a sintering.*** present study investig.ted the effect of Ti_(3)SiC_(2) addition to boron carbide by reactive spark plasma sintering.in the rang. of 1700-1900℃.Ti_(3)SiC_(2) phase decomposed at hig. temperatures and reacted with B4C to form secondary phases of TiB2 and *** results demonstrated that the increase of Ti_(3)SiC_(2) addition(up to 15 vol%)effectively promoted the densification of B4C and yielded hig.er ***,as the amount of Ti_(3)SiC_(2) increased further,the formation of microstructural inhomog.neity and ag.lomeration of secondary phases caused a decrease in hardness.

关键词： reactive sintering SPS boron carbide MAX phase

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Supposition of g.aphene stacks to estimate the contact resistance and conductivity of nanocomposites

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Applied Mathematics and Mechanics(Eng.ish Edition) 2024年第4期45卷 663-676页

作者： Y.ZARE M.T.MUNIR g.J.WENg.K.Y.RHEE Biomaterials and Tissue Eng.neering.Research g.oup Department of Interdisciplinary TechnologiesBreast Cancer Research CenterMotamed Cancer InstituteTehran ***Iran Colleg. of Eng.neering.and Technolog. American University of the Middle EastEgaila 54200Kuwait Department of Mechanical and Aerospace Eng.neering Rutgers UniversityNew BrunswickNJ 08903U.S.A. Department of Mechanical Eng.neering.BK21 Four) College of EngineeringKyung Hee UniversityYongin 446701Republic of Korea

In this study,the effects of stacked nanosheets and the surrounding.interphase zone on the resistance of the contact reg.on between nanosheets and the tunneling.conductivity of samples are evaluated with developed equations superior to those previously *** contact resistance and nanocomposite conductivity are modeled by several influencing.factors,including.stack properties,interphase depth,tunneling.size,and contact *** developed model's accuracy is verified throug. numerous experimental *** further validate the models and establish correlations between parameters,the effects of all the variables on contact resistance and nanocomposite conductivity are ***,the contact resistance is primarily dependent on the polymer tunnel resistivity,contact area,and tunneling.*** dimensions of the g.aphene nanosheets sig.ificantly influence the conductivity,which rang.s from 0 S/m to90 S/*** increased number of nanosheets in stacks and a larg.r g.p between them enhance the nanocomposite's ***,the thicker interphase and smaller tunneling.size can lead to hig.er sample conductivity due to their optimistic effects on the percolation threshold and network efficacy.

关键词： g.aphene polymer composite stacked nanosheet tunneling.conductivity contact resistance interphase

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Hydrodynamic function and spring.constant calibration of FluidFM micropipette cantilevers

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Microsystems & Nanoeng.neering 2024年第1期10卷 277-286页

作者： Attila Bonyár Ág.ston g.Nag. Hans g.nstheimer g.tthold Fläschner Robert Horvath Department of Electronics Technolog. Faculty of Electrical Engineering and InformaticsBudapest University of Technology and EconomicsBudapestHungary Nanobiosensorics Laboratory Institute of Technical Physics and Materials ScienceCentre for Energy ResearchHUN-RENBudapestHungary Nanosurf Ag Gräubernstrasse 12CH-4410 LiestalSwitzerland

Fluidic force microscopy(FluidFM)fuses the force sensitivity of atomic force microscopy with the manipulation capabilities of microfluidics by using.microfabricated cantilevers with embedded fluidic *** innovation initiated new research and development directions in biolog.,biophysics,and material *** acquire reliable and reproducible data,the calibration of the force sensor is ***,the hollow FluidFM cantilevers contain a row of parallel pillars inside a rectang.lar *** precise spring.constant calibration of the internally structured cantilever is far from trivial,and existing.methods g.nerally assume simplifications that are not applicable to these special types of *** addition,the Sader method,which is currently implemented by the FluidFM community,relies on the precise measurement of the quality factor,which renders the calibration of the spring.constant sensitive to *** this study,the hydrodynamic function of these special types of hollow cantilevers was experimentally determined with different *** on the hydrodynamic function,a novel spring.constant calibration method was adapted,which relied only on the two resonance frequencies of the cantilever,measured in air and in a *** on these results,our proposed method can be successfully used for the reliable,noise-free calibration of hollow FluidFM cantilevers.

关键词： spring cantilever function

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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

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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

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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.

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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

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