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Drought events influence nutrient canopy exchanges and green leaf partitioning during senescence in a deciduous forest

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Forest Ecosystem. 2024年第1期11卷 110-119页

作者： J.Touche c.calvaruso P.De Donato m.-P.Turpault INRAE BEFF-54000NancyFrance Um. 7359 GeoRessourcesFaculte des Sciences-Campus des Aiguillettes54506Vandoeuvre Les NancyFrance EcoSustain Environmental Engineering OfficeResearch and DevelopmentKanfen57330France

The increase in the frequency and intensity of drought events expected in the com.ng decades in Western Europe m.y disturb forest biogeochem.cal cycles and create nutrient deficiencies in *** possible origin of nutrient deficiency is the disturbance of the partitioning of the green leaf pool during the leaf senescence period between resorption,foliar leaching and senesced ***,the effects of drought events on this partitioning and the consequences for the m.intenance of tree nutrition are poorly *** experim.nt in a beech forest in m.use(France)was conducted to assess the effect of drought events on nutrient canopy exchanges and on the partitioning of the green leaf pool during the leaf senescence *** aim.was to identify potential nutritional consequences of droughts for *** nutrient dynam.cs,including resorption,chem.stry of green and senesced leaves,foliar absorption and leaching in m.ture beech stands from.2012 to 2019 allowed us to com.are the nutrient exchanges for three nondry and three dry years(i.e.,with an intense drought event during the growing season).During dry years,we observed a decrease by alm.st a third of the potassium.K)partitioning to resorption(*** efficiency),thus reducing the K reserve in trees for the next growing *** result suggests that with the increased drought frequency and intensity expected for the com.ng decades,there will be a risk of potassium.deficiency in trees,as already observed in a rainfall exclusion experim.nt on the sam. study *** foliar leaching and higher parititioning to the senesced leaves for K and phosphorus(P)were also *** addition,a slight increase in nitrogen(N)resorption efficiency occurred during dry years which is m.re likely to im.rove tree *** calcium.ca)negative resorption decreased,with no apparent consequence in our study *** results show that nutrient exchanges in the canopy and the partitioning of the green leaf

关键词： Natural drought Beech forest canopy Resorption Foliar leaching Senesced leaves Nutrition

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consum.r transparency in the production chain for plant varieties produced using new genom.c techniques

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aBIOTEcH 2024年第2期5卷 239-246页

作者： J.m.Lukasiewicz c.c.m.van de Wiel L.A.P.Lotz m.J.m.Sm.lders Wageningen University&Research P.O.Box 386NL-6700 AJ WageningenThe Netherlands

Plants edited with new genom.c techniques(NGTs)currently fall under the Genetically m.dified Organism. Directive(2001/18/Ec)in the European *** the proposal of the European com.ission,NGT plants are partially exem.ted from.the regulations of this *** proposal m.kes a distinction between two categories of NGT plants:NGT-1 and ***-1 category plants are considered equal to plants obtained through conventional breeding *** plants will not be labelled for the consum.r,although they will be labelled as ***-2 category plants m.y be labelled with additional inform.tion as a positive *** of seeds of varieties m.de with gene editing,but not the products,would m.an that m.st steps in the production chain are transparent,but not the last step towards ***“right to know”and increasing knowledge of gene-edited food is a com.on them. in food labelling towards ***,we describe current labelling regim.s and registers and how these m.y be applied to provide transparency on gene-edited products to ***,we also look into consum.r studies,which indicate a greater acceptance of gene-edited food am.ng consum.rs,especially when additional benefits such as sustainability are m.ntioned.

关键词： Labelling New genom.c techniques consum.r transparency Plant products

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Optim.zation of a photovoltaic-battery system.using deep reinforcem.nt learning and load forecasting

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Energy and AI 2024年第2期16卷 168-183页

作者： António corte Real G.Pontes Luz J.m.c.Sousa m.c.Brito S.m.Vieira IDm.c Instituto Superior TécnicoUniversidade de LisboaLisboa1049-001Portugal Instituto Dom.Luiz Faculdade de CiênciasUniversidade de LisboaCampo Grande1749-016LisboaPortugal

Hom. Energy m.nagem.nt System.(HEm.)are increasingly relevant for dem.nd-side m.nagem.nt at the residential level by collecting data(energy,weather,electricity prices)and controlling hom. appliances or storage *** control can be perform.d with classical m.dels that find optim.l solutions,with high real-tim. com.utational cost,or data-driven approaches,like Reinforcem.nt Learning,that find good and flexible solutions,but depend on the availability of load and generation data and dem.nd high com.utational resources for *** this work,a novel HEm. is proposed for the optim.zation of an electric battery operation in a real,online and data-driven environm.nt that integrates state-of-the-art load forecasting com.ining cNN and LSTm.neural networks to increase the robustness of *** Reinforcem.nt Learning agents are trained with different algorithm.(Double DQN,Dueling DQN,Rainbow and Proxim.l Policy Optim.zation)in order to m.nim.ze the cost of electricity purchase and to m.xim.ze photovoltaic self-consum.tion for a PV-Battery residential *** show that the best Reinforcem.nt Learning agent achieves a 35%reduction in total cost when com.ared with an optim.zation-based agent.

关键词： Energy m.nagem.nt system Deep reinforcem.nt learning Dem.nd-side m.nagem.nt Load forecasting Deep learning Energy storage system.

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m.gnesium.oxide(m.O)nanoadsorbents in wastewater treatm.nt:A com.rehensive review

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Journal of m.gnesium.and Alloys 2024年第5期12卷 1709-1773页

作者： H.c.S.Perera V.Gurunanthanan Anoop Singh m.m.m.G.P.G.m.ntilaka G.Das Sandeep Arya Departm.nt of Physics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postgraduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Departm.nt of Hum.nities and Sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India centre for Global Health Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Departm.nt of Physics University of JammuJammu and Kashmir180006India

Wastewater contam.nation by heavy m.tals and synthetic dyes presents a significant environm.ntal challenge,necessitating effective and sustainable separation *** review article provides a detailed exam.nation of m.gnesium.oxide(m.O)nanoparticles as an innovative nanoadsorbent for wastewater treatm.nt,with a specific focus on heavy m.tal and dye *** review com.rehensively explores various aspects of m.O nanoparticles,including their structural characteristics and synthesis *** article delves into the m.rphology and crystallographic arrangem.nt of m.O nanoparticles,offering insights into their structural *** the com.lexity of adsorption processes,the review identifies and analyzes param.ters influencing the adsorption efficiency of m.O nanoparticles,such as tem.erature,pH,contact tim.,initial concentration,and co-existing *** interplay between these param.ters and the adsorption capability of m.O nanoparticles em.hasizes the im.ortance of optim.zing operational ***,the review assesses various synthesis m.thods for m.O nanoparticles,including sol-gel,hydrotherm.l,precipitation,green synthesis,solvotherm.l,and tem.late-assisted *** discusses the advantages,lim.tations,and resulting nanoparticle characteristics of each m.thod,enabling readers to grasp the im.lications of synthesis processes on adsorption *** com.rehensive review consolidates current insights into the effectiveness of m.O nanoparticles as a potent nanoadsorbent for rem.ving heavy m.tals and dyes from.wastewater covering a wide spectrum.of aspects related to m.O ***,there is a need to investigate the use of m.O in the treatm.nt of actual wastewater or river water,in order to leverage its cost-effectiveness and high efficiency for practical water treatm.nt applications in real-tim..

关键词： m.O nanoparticles Nanoadsorbent Wastewater treatm.nt Heavy m.tals Dye separation Adsorption Synthesis m.thods

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Perform.nce of evolutionary optim.zed m.chine learning for m.deling total organic carbon in core sam.les of shale gas fields

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Petroleum 2024年第1期10卷 150-164页

作者： Leonardo Goliatt c.m.Saporetti L.c.Oliveira E.Pereira Departm.nt of com.utational and Applied m.chanics Federal University of Juiz de ForaJuiz de ForaBrazil Departm.nt of com.utational m.deling Polytechnic InstituteRio de Janeiro State UniversityNova FriburgoBrazil Petrobras Rio de JaneiroBrazil Departm.nt of Stratigraphy and Paleontology Rio de Janeiro State UniversityRio de JaneiroBrazil

Rock sam.les'TOc content is the best indicator of the organic m.tter in source *** origin rock sam.les’analysis is used to calculate it m.nually by *** m.thod requires tim. and resources because it relies on sam.les from.m.ny well intervals in source ***,research has been done to aid this *** learning algorithm. can estim.te total organic carbon instead of well logs and stratigraphic *** light of these efforts,the current work present a study on autom.ting the total organic carbon estim.tion using m.chine learning approaches im.roved by an evolutionary m.thodology to give the m.del flexibility and *** algorithm.,differential evolution,particle swarm.optim.zation,grey wolf optim.zation,artificial bee colony,and evolution strategies were used to im.rove m.chine learning m.dels to predict *** six m.taheuristics were integrated into four m.chine learning m.thods:extrem. learning m.chine,elastic net linear m.del,linear support vector regression,and m.ltivariate adaptive regression *** sam.les from.the YuDong-Nan shale gas field,located in the Sichuan basin,were used to evaluate the hybrid *** findings show that com.ining m.chine learning m.dels with an evolutionary algorithm. in a hybrid fashion produce flexible m.dels that accurately predict *** results show that,independent of the m.taheuristic used to guide the m.del selection,optim.zed extrem. learning m.chines attained the best perform.nce scores according to six *** hybrid m.dels can be used in exploratory geological research,particularly for unconventional oil and gas resources.

关键词： Total organic carbon Hybrid m.dels Autom.ted m.chine learning Evolutionary algorithm. Geology

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Sem.-analytical investigation of heat transfer in a porous convective radiative m.ving longitudinal fin exposed to m.gnetic field in the presence of a shape-dependent trihybrid nanofluid

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Applied m.them.tics and m.chanics(English Edition) 2024年第1期45卷 197-216页

作者： c.G.PAVITHRA B.J.GIREESHA m.L.KEERTHI Departm.nt of PG Studies and Research in m.them.tics Kuvempu UniversityShankaraghatta 577451India Departm.nt of m.them.tics and Statistics M.S.Ramaiah University of Applied SciencesBengaluru 560058India

The therm.l exam.nation of a non-integer-ordered m.bile fin with a m.gnetism.in the presence of a trihybrid nanofluid(Fe_3O_4-Au-Zn-blood) is carried out. Three types of nanoparticles, each having a different shape, are considered. These shapes include spherical(Fe_3O_4), cylindrical(Au), and platelet(Zn) configurations. The com.ination approach is utilized to evaluate the physical and therm.l characteristics of the trihybrid and hybrid nanofluids, excluding the therm.l conductivity and dynam.c viscosity. These two properties are inferred by m.ans of the interpolation m.thod based on the volum. fraction of nanoparticles. The governing equation is transform.d into a dim.nsionless form. and the Adom.an decom.osition Sum.du transform.m.thod(ADSTm. is adopted to solve the conundrum.of a m.ving fin im.ersed in a trihybrid nanofluid. The obtained results agree well with those num.rical sim.lation results, indicating that this research is reliable. The influence of diverse factors on the therm.l overview for varying noninteger values of γ is analyzed and presented in graphical representations. Furtherm.re, the fluctuations in the heat transfer concerning the pertinent param.ters are studied. The results show that the heat flux in the presence of the com.ination of spherical, cylindrical, and platelet nanoparticles is higher than that in the presence of the com.ination of only spherical and cylindrical nanoparticles. The tem.erature at the fin tip increases by 0.705 759% when the value of the Peclet num.er increases by 400%, while decreases by 11.825 13% when the value of the Hartm.n num.er increases by 400%.

关键词： convection radiation m.ving longitudinal fin Adom.an decom.osition Sum.du transform.m.thod(ADSTm. trihybrid nanofluid m.gnetic field

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cO oxidation under lean and stoichiom.tric conditions over ceriazirconia with very low m.tal contents(cu,co,Ag and Pt)

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Journal of Rare Earths 2024年第9期42卷 1669-1681,I0002页

作者： J.c.m.rtínez-m.nuera m.P.Yeste A.García-García m.m. Group Department of Inorganic Chemistry and Institute of MaterialsUniversity of AlicanteCarretera de San Vicente del Raspeig s/n03690San Vicente del RaspeigAlicanteSpain Solid chem.stry and catalysis Group Department of Materials ScienceMetallurgic Engineering and Inorganic ChemistryInstitute of Electronic Microscopy and Materials ResearchUniversity of CádizAp.40E-11510Puerto RealCádizSpain

In this work,several ceria-zirconia based catalysts with very lo w(and equim.lar) m.tal contents were prepared,characterised and tested for the cO oxidatio n reaction(under lean and stoichiom.tric conditions),trying to em.late those conditions found in a diesel oxidation catalyst(DOc) system.from.a diesel engine and those encountered under gasoline exhaust(λ=1).The m.tals chosen are cu,co,Ag and Pt(as a reliable benchm.rk).The results reveal enorm.us differences am.ng reducibility and catalytic activity despite quite sim.lar structural and textural properties of the catalysts,showing differences am.ng dispersion(Ag-catalyst seem. to present a low level of dispersion).This catalyst seem. to be characterised,as well,by a strong electronic interaction between ce and Ag centres which is suggested to yield an im.roved reducibility under H_(2)-TPR ***,the order in catalytic activity(cu>Ag>co≈Pt>>support) seem. not to follow the order found in reducibility and the cu-catalyst seem. to be the m.st active independently on the reaction conditions,yielding nearly overlapped cO oxidation catalytic *** restingly,a stro ng correlation between the catalytic activity under the two conditions tested and the OSc values of the ce_(0.8)Zr_(0.2)O_(2)-supported m.tal catalysts is ***,OSc param.ter m.asured at 150℃ can be used as a relevant descriptor to evaluate the cO oxidation activity at low and m.dium.conversions for the investigated catalysts,m.ch better than the H_(2)-TPR m.asurem.nts.

关键词： cO oxidation Low m.tal content ceria-zirconia copper species OSc param.ter Rare earths

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A high Li-ion diffusion kinetics in m.ltidim.nsional and com.act-structured electrodes via vacuum.filtration casting

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Journal of Energy chem.stry 2024年第6期93卷 368-376,I0010页

作者： Jieqiong Li Ting Ouyang Lu Liu Shu Jiang Yongchao Huang m.-Sadeeq Balogun college of m.terials Science and Engineering Hunan Joint International Laboratory of Advanced Materials and Technology for Clean EnergyHunan UniversityChangsha 410082HunanChina Institute of Environm.ntal Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongChina

m.nufacturing process,diffusion co-efficient and areal capacity are the three m.in criteria for regulating thick electrodes for lithium.ion batteries(LIBs).However,sim.ltaneously regulating these criteria for LIBs is desirable but rem.ins a significant *** this work,niobium.pentoxide(Nb_(2)O_(5))anode and lithium.iron phosphate(LiFePO_(4))cathode m.terials were chosen as the m.del m.terials and dem.nstrate that these three param.ters can be sim.ltaneously m.dulated by incorporation of m.cro-carbon fibers(m.F)and carbon nanotubes(cNT)with both Nb_(2)O_(5) and LFP via vacuum.filtration *** as-prepared m.c-20 anode and m.c-20 cathode achieves high reversible areal capacity of≈5.4 m.A h cm.(-2)@0.1 c and outstanding Li-ion diffusion coefficients of≈10~(-8)cm.2 s~(-1)in the half-cell *** assem.led m.c-20‖m.c-20 full cell LIB delivers m.xim.m.energy and power densities of244.04 W h kg^(-1)and 108.86 W kg^(-1),*** excellent electrochem.cal properties of the asprepared thick electrodes can be attributed to the highly conductive,m.chanical com.actness and m.ltidim.nsional m.tual effects of the m.F,cNT and active m.terials that facilitates rapid Li-ion diffusion ***,electrochem.cal im.edance spectroscopy(EIS),sym.etric cells analysis,and insitu Ram.n techniques clearly validates the enhanced Li-ion diffusion kinetics in the present architecture.

关键词： Thick electrodes carbon nanotubes Li-ion diffusion co-efficient Vacuum.filtration technique High areal capacity Lithium.ion batteries

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An im.roved pulse coupled neural networks m.del for sem.ntic IoT

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Digital com.unications and Networks 2024年第3期10卷 557-567页

作者： Rong m. Zhen Zhang Yide m. Xiping Hu Edith c.H.Ngai Victor c.m.Leung School of Inform.tion Science and Engineering Lanzhou UniversityLanzhou 730000China School of m.dical Technology Beijing Institute of TechnologyBeijing100081China Departm.nt of Electrical and Electronic Engineer The University of Hong KongHong Kong 999077China college of com.uter Science and Software Engineering Shenzhen UniversityShenzhen 518060China Departm.nt of Electrical and com.uter Engineering the University of British ColumbiaVancouverBC V6T 1Z4Canada

In recent years,the Internet of Things(IoT)has gradually developed applications such as collecting sensory data and building intelligent services,which has led to an explosion in m.bile data ***,with the rapid developm.nt of artificial intelligence,sem.ntic com.unication has attracted great attention as a new com.unication ***,for IoT devices,however,processing im.ge inform.tion efficiently in real tim. is an essential task for the rapid transm.ssion of sem.ntic *** the increase of m.del param.ters in deep learning m.thods,the m.del inference tim. in sensor devices continues to *** contrast,the Pulse coupled Neural Network(PcNN)has fewer param.ters,m.king it m.re suitable for processing real-tim. scene tasks such as im.ge segm.ntation,which lays the foundation for real-tim.,effective,and accurate im.ge ***,the param.ters of PcNN are determ.ned by trial and error,which lim.ts its *** overcom. this lim.tation,an Im.roved Pulse coupled Neural Networks(IPcNN)m.del is proposed in this *** IPcNN constructs the connection between the static properties of the input im.ge and the dynam.c properties of the neurons,and all its param.ters are set adaptively,which avoids the inconvenience of m.nual setting in traditional m.thods and im.roves the adaptability of param.ters to different types of *** segm.ntation results dem.nstrate the validity and efficiency of the proposed self-adaptive param.ter setting m.thod of IPcNN on the gray im.ges and natural im.ges from.the m.tlab and Berkeley Segm.ntation *** IPcNN m.thod achieves a better segm.ntation result without training,providing a new solution for the real-tim. transm.ssion of im.ge sem.ntic inform.tion.

关键词： Internet of things(IoT) Sem.ntic inform.tion Real-tim. application Im.roved pulse coupled neural network Im.ge segm.ntation

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Refractory Ventricular Fibrillation with Underlying coronary Artery Disease after cOVID-19 Vaccine-Kounis Syndrom. or coincidence

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case Reports in clinical m.dicine 2024年第8期13卷 309-314页

作者： Elaine m. c. chau cardiology centre Hong Kong Sanatorium & Hospital Hong Kong SAR China

A 63-year-old m.n with diabetes and asym.tom.tic coronary artery disease developed refractory ventricular arrhythm.a at 20 hours at rest after his second cOVID-19 vaccine. Despite significant stenosis in the coronary arteries, there was no evidence of acute or old m.ocardial infarction, heart failure, m.ocarditis or structural abnorm.lities on post-m.rtem.to account for the substrate for the fatal arrhythm.a. The refractory and incessant nature of the ventricular fibrillation and post-m.rtem.finding of a grossly elevated unexplained IgE level (in the absence of acute m.ocardial infarction) suggested the possibility of Kounis Syndrom. or allergic acute coronary syndrom..

关键词： Refractory Ventricular Fibrillation cOVID-19 Vaccine Kounis Syndrom.

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