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Tracking the Ti^(4+)substitution in phlogopite by spectroscopic imaging:A tool f.r unravelling the growth of.micas at HP-HT conditions

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Geoscience f.ontiers 2024年第3期15卷 1-13页

作者： G.Della Ventura N.El Moutaouakkil B.Boukili S.Bernardini A.Sodo L.Pronti M.Cestelli-Guidi f.Holtz f.Lucci Dipartimento di Scienze UniversitàRoma TreRomaItaly INf.-LNf via Fermi 200040 FrascatiRomaItaly INGV Via di Vigna Murata 60500143 RomaItaly Laboratory of.Géosciences Water and Environment.Department of Earth Sciences.Faculty of SciencesUniversity Mohammed VRabatMorocco Leibnitz Universität Hannover Institute of MineralogyCallinstr 330167 HannoverGermany Dipartimento di Scienze della Terra e Geoambientali Universitàdi Bari“Aldo Moro”BariItaly

Phlogopite solid-solutions have a wide pressure-temperature(P-T)stability f.eld and are ubiquitous in a wide variety of.geological settings,f.om deep lithosphere magmatic environments to upper crust metamorphic *** composition represents theref.re a valuable physical-chemical archive and may provide important inf.rmation regarding its crystallization and the petrogenesis of.the *** this paper we examine the phlogopite phenocrysts f.om the well-known f.rt Regent mica-bearing lamprophyre minette f.om ***(Island of.Jersey,UK).Phlogopite phenocrystals f.om lamprophyres generally show normal-step and continuous compositional zoning,however those f.om the f.rt Regent minette show a peculiar texture characterized by dark brown high-Ti(average TiO_(2)≈8.5 wt.%)cores enveloped by euhedral low-to mid-amplitude zonation due to oscillatory contents in Ti,f. and ***-barometry modelling based on biotite-only composition yields relatively high P-T estimates(T≈970±54℃at P≈0.73±0.13 GPa)f.r cores whereas lower values(T≈790±54℃at P≈0.29±0.13 GPa)are obtained f.r the outer *** temperatures(T≈1075±54℃)but extremely high and anomalous pressure values(P≈1.82±0.13 GPa)are obtained f.r the yellowish inner *** combination of.electron micro probe(EMP)analysis and single-crystal inf.a-red(f.IR)imaging in the OH-stretching region shows that the exceptional and oscillatory Ti contents are due to the Ti-vacancy substitution,typical of.crystallization and growth processes of.HP/HT *** imaging provides additional insight f.r this process,conf.rming the dominant dioctahedral nature f.r the Ti-f.-rich cores and outer *** of.thermobaric estimates obtained f.om the phlogopite compositiononly model,based on the f.ne-scale compositional evolution,shows that pressure-temperature values f.om low-Ti high-Mg domains should be caref.lly evaluated because the substitution mechanisms during the dark mica growth are not univocal

关键词： Ti-phlogopite Jersey minette(UK) Ti-substitution f.IR imaging Raman imaging Thermobarometric modelling

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Mathematical modeling and simulations of.stress mitigation by coating polycrystalline particles in lithium-ion batteries

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Applied Mathematics and Mechanics(English Edition) 2024年第6期45卷 947-962页

作者： N.IQBAL J.CHOI S.f.SHAH C.LEE S.LEE Department of.Mechanical Roboticsand Energy EngineeringDongguk University-SeoulSeoul 04620Republic of Korea

A chemo-mechanical model is developed to investigate the ef.ects on the stress development of.the coating of.polycrystalline Ni-rich LiNixMnyCo_(z)O_(2)(x≥0.8)(NMC)particles with poly(3,4-ethylenedioxythiophene)(PEDOT).The simulation results show that the coating of.primary NMC particles signif.cantly reduces the stress generation by ef.iciently accommodating the volume change associated with the lithium dif.usion,and the coating layer plays roles both as a cushion against the volume change and a channel f.r the lithium transport,promoting the lithium distribution across the secondary particles more ***,the lower stif.ness,higher ionic conductivity,and larger thickness of.the coating layer improve the stress *** paper provides a mathematical f.amework f.r calculating the chemo-mechanical responses of.anisotropic electrode materials and f.ndamental insights into how the coating of.NMC active particles mitigates stress levels.

关键词： lithium-ion battery(LIB) polycrystalline particle coating f.nite element simulation Ni-rich LiNixMnyCo_(z)O_(2)(x>0.8)(NMC)

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Asymmetric reversible structural switching of.a diene coordination polymer promoted by UV-visible light

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Science China Chemistry 2024年第2期67卷 536-541页

作者： Yong Wang Qiaoqiao Zhang Yong-Yong Cao Qi Liu Brendan f.Abrahams Jian-Ping Lang College of.Chemistry Chemical Engineering and MaterialsSoochow UniversitySuzhou215123China State Key Laboratory of.Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai200032China College of.Biological Chemical Science and EngineeringJiaxing UniversityJiaxing314001China School of.Chemistry University of MelbourneVictoria3010Australia

In natural and artif.cial systems,reversible reactions are commonly asymmetric with respect to the time scale and nature of.the stimuli which drive the f.rward and backward *** applications f.r which switching behavior is required,it is desirable that the reversible reaction goes as close to symmetric as possible;however,such systems are ***,we report an example of.ultraviolet(UV)-visible light-regulated asymmetric reversible structural switching involving a diene-based coordination polymer,CP1 and its monocyclobutane product,*** is possible to cycle at least ten times through a f.rward [2+2] photocycloaddition reaction and the reverse,photocleavage reaction.A single cycle can be completed within a f.w *** transf.rmation is accompanied by f.st and distinct f.uorescence changes,arising f.om optimisation of.the reaction *** f.nctional theory calculations allow rationalisation of.the asymmetric reversible transf.rmation between CP1 and CP1a rather than between CP1 and its dicyclobutane product *** work provides a clear illustration of.reversible structural switching which approaches symmetric behaviour with respect to reaction rate and *** insights gained f.om this work also assist in the design of.f.st,reversible switching materials.

关键词： asymmetrical reversible structural switching coordination polymer photocycloaddition UV-visible light-controlled f.uorescence switching

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Modelling the brittle rock f.ilure by the quaternion-based bonded-particle model in DEM

Rock Mechanics Bulletin

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Rock Mechanics Bulletin 2024年第2期3卷 87-95页

作者： Tao Zhao Philip E.f.Collins Department of.Civil and Environmental Engineering Brunel University LondonLondonUB83PHUnited Kingdom

This paper presents an investigation of.brittle rock f.ilure by the quaternion-based bonded-particle model in discrete element method(DEM).Unlike traditional approaches that utilize Euler angles or rotation matrices,this model employs unit quaternions to represent the spatial rotations of.*** method simplif.es the rep-resentation of.3D rotations,providing a more intuitive f.amework f.r modelling complex interactions in granular *** numerical model was validated by the uniaxial compression tests on rock,with good agreement with well-documented experimental data in terms of.the rock uniaxial compression strength(UCS)and f.ilure *** loading,the rock sample demonstrated a linear-elastic response at an axial strain of.smaller than 0.45%.However,as internal bond breakage accumulated,this linear relationship weakened,and the stress-strain curve began to deviate f.om its initial linear *** bond breakage and the overall def.rmation of.the rock were primarily controlled by the shear bonding *** UCS was achieved at an axial strain of.0.625%,at which point the internal shear bonding f.rce chains were predominantly aligned *** brittle f.ilure occurred when the internal damage of.solids nucleated to f.rm an interconnected f.ilure plane,accompanied by a sharp rise in the internal damage *** area of.f.ilure plane increased with the loading strain rate,gradually transf.rming the f.ilure pattern f.om the local damage to a complete f.agmentation.

关键词： Brittle f.ilure Quaternion DEM bonded model Uniaxial compression test Rate dependent Internal damage

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Omics-based biomarkers as usef.l tools in metabolic dysf.nctionassociated steatotic liver disease clinical practice:How f.r are we?

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World Journal of.Gastroenterology 2024年第14期30卷 1982-1989页

作者： Julieta Trinks María f.Mascardi Adrián Gadano Sebastián Marciano Instituto de Medicina Traslacional e Ingeniería Biomédica-Consejo Nacional de Investigaciones Científ.cas y Técnicas-Instituto Universitario del Hospital Italiano-Hospital Italiano de Buenos Aires Ciudad Autónoma de Buenos Aires C1199ACLArgentina Consejo Nacional de Investigaciones Científ.cas y Técnicas Ciudad Autónoma de Buenos Aires C1425FQBArgentina Liver Unit Hospital Italiano de Buenos AiresCiudad Autónoma de Buenos Aires C1199DFArgentina Department of.Research Hospital Italiano de Buenos AiresCiudad Autónoma de Buenos Aires C1199DFArgentina

Unmet needs exist in metabolic dysf.nction-associated steatotic liver disease(MASLD)risk *** ability to identif. patients with MASLD with advanced f.brosis and at higher risk f.r adverse outcomes is still *** novel biomarkers could represent a meaningf.l improvement to current risk *** this aim,omics technologies have revolutionized the process of.MASLD biomarker discovery over the past *** the research in this f.eld is thriving,much of.the publication has been haphazard,of.en using single-omics data and specimen sets of.convenience,with many identif.ed candidate biomarkers but lacking clinical validation and *** we incorporate these biomarkers to direct patients’management,it should be considered that the roadmap f.r translating a newly discovered omics-based signature to an actual,analytically valid test usef.l in MASLD clinical practice is rigorous and,theref.re,not easily *** article presents an overview of.this area’s current state,the conceivable opportunities and challenges of.omics-based laboratory diagnostics,and a roadmap f.r improving MASLD biomarker research.

关键词： Metabolic dysf.nction-associated steatotic liver disease Non-alcoholic steatohepatitis Biomarker Risk stratif.cation Omics

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Threshold-Based Sof.ware-Def.ned Networking(SDN)Solution f.r Healthcare Systems against Intrusion Attacks

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Computer Modeling in Engineering & Sciences 2024年第2期138卷 1469-1483页

作者： Laila M.Halman Mohammed J.f.Alenazi Department of.Computer Engineering College of Computer ScienceKing Saud UniversityRiyadh11451Saudi Arabia

The healthcare sector holds valuable and sensitive *** amount of.this data and the need to handle,exchange,and protect it,has been increasing at a f.st *** to their nature,sof.ware-def.ned networks(SDNs)are widely used in healthcare systems,as they ensure ef.ective resource utilization,saf.ty,great network management,and *** this sector,due to the value of.thedata,SDNs f.ceamajor challengeposed byawide range of.attacks,such as distributed denial of.service(DDoS)and probe *** attacks reduce network perf.rmance,causing the degradation of.dif.erent key perf.rmance indicators(KPIs)or,in the worst cases,a network f.ilure which can threaten human *** can be signif.cant,especially with the current expansion of.portable healthcare that supports mobile and wireless devices f.r what is called mobile health,or *** this study,we examine the ef.ectiveness of.using SDNs f.r def.nse against DDoS,as well as their ef.ects on dif.erent network KPIs under various *** propose a threshold-based DDoS classif.er(TBDC)technique to classif. DDoS attacks in healthcare SDNs,aiming to block traf.ic considered a hazard in the f.rm of.a DDoS *** then evaluate the accuracy and perf.rmance of.the proposed TBDC *** technique shows outstanding perf.rmance,increasing the mean throughput by 190.3%,reducing the mean delay by 95%,and reducing packet loss by 99.7%relative to normal,with DDoS attack traf.ic.

关键词： Network resilience network management attack prediction sof.ware def.ned networking(SDN) distributed denial of.service(DDoS) healthcare

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Adsorption of.pharmaceutical pollutants on ZnCl_(2)-activated biochar f.om corn cob:Ef.iciency,selectivity and mechanism

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Journal of.Bioresources and Bioproducts 2024年第1期9卷 58-73页

作者： Christian f.Varela L.C.Moreno-Aldana Yazmin Yaneth Agámez-Pertuz Department of.Chemistry National University of ColombiaAv.Carrera 30 No.45-03BogotáD.C.Colombia Department of.Biology and Chemistry University of the Llanoskm 12 road to Puerto LópezVillavicencioColombia

The occurrence of.pharmaceuticals in water bodies and drinking water poses risks f.r the envi-ronment and human health,thus it is necessary to study methodologies that allow the ef.icient removal of.these *** this work,corn cob-derived biochar was obtained by ZnCl_(2)-activation,and subsequent carbonization at 700℃.The ef.ect of.contact time,temperature,pH,and initial concentration on the adsorption capacity of.acetaminophen(ACE)and amoxicillin(AMX)was determined through batch *** addition,the kinetics,isotherms,and ther-modynamics parameters were *** activated biochar exhibited a maximum adsorp-tion capacity of.332.08 mg/g f.r ACE and 175.86 mg/g f.r *** adsorption kinetics and adsorption isotherm of.ACE corresponded to the pseudo-second order and Langmuir model,***,pseudo-f.rst-order kinetics and the f.eundlich isotherm model were well-f.tted to AMX *** ACE and AMX co-adsorption had a synergistic ef.ect on AMX but an antagonistic ef.ect on ACE removal,achieving a maximum adsorption capacity of.193.51 and 184.58 mg/g,*** the other hand,f.xed-bed column experiments showed that the adsorption capacity depends on the inf.uent concentration,and the breakthrough curve f.ts the Thomas and Yoon-Nelson *** mechanism adsorption studies showed that surf.ce inter-actions(hydrogen bonding f.rmation and n-𝜋interactions)are the main driving f.rces f.r the adsorption process,and pore f.lling is the rate-limiting *** this way,the prepared biochar exhibits a high potential f.r the adsorption of.pharmaceutical compounds f.om water.

关键词： Biochar Adsorption Acetaminophen Amoxicillin Wastewater treatment

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Ef.ects of.synthesis parameters on the perf.rmance of.crosslinked Co-polymers with clays f.r conf.rmance control

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Petroleum Research 2024年第1期9卷 98-108页

作者： A.A.Roslan N.A.A.Aziz N.f.A.Deraman I.Dzulkarnain Petroleum Engineering Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia Chemical Engineering Department Centre of Research Enhanced Oil Recovery(COREOR)Universiti Teknologi PETRONASSeri IskandarPerakMalaysia

Conf.rmance control or water shut-of. is a technique used to improve oil *** conf.rmance control,polymers block high permeability water areas and redistribute water drive toward unswept oil *** this study,co-polymers(denoted ATP-PGV/AM-co-AMPS)were synthesized using acrylamide(AM)and 2-acrylamide-2-methylpropane sulf.nic acid(AMPS)as the monomers,polyethylene glycol(PEG)-200 and methylenebisacrylamide(MBA)as the crosslinkers,attapulgite(ATP)and bentonite(PGV)as the clay types,and ammonium persulf.te(APS)as the initiator,in addition to paraf.in oil and *** were synthesized using inverse emulsion polymerization with dif.erent concentrations of.monomers,crosslinkers,and clays,and they were characterized using f.urier-transf.rm inf.ared(f.IR)spectroscopy and scanning electron microscopy(SEM)with energy dispersive X-ray spectroscopy(EDX).f.IR spectra of.the samples conf.rmed the existence of.sulf.nate and hydroxyl groups,which are important f.r polymer ***-EDX images indicated that the morphology and elemental composition were dif.erent bef.re and af.er swelling,conf.rming the occurrence of.***,samples were placed in sodium chloride solution(20,000 ppm)f.r 7 days to evaluate swelling at both room temperature and 90°*** analysis(TGA)and dif.erential scanning calorimetry(DSC)were used to determine the thermal characteristics of.the ***,rheological measurements were used to assess the def.rmation and rheological behavior of.the *** results showed that af.er 1 day,good swelling without loss of.mechanical strength was achieved with the composite synthesized using 10%AM,15%AMPS,6%PGV,and 10%ATP.

关键词： Polymer Clay Water shut-of. Conf.rmance Swelling

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Classical taxonomy,molecular phylogeny and genetic analysis of.the genus Exitianus Ball,1929(Hemiptera:Cicadellidae:Deltocephalinae)f.om Egypt

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Zoological Systematics 2024年第2期49卷 143-157页

作者： Rabab M.El-Hady Ahmed f.El-Sayed Survey&Taxonomy Department Plant Protection Research InstituteAgriculture Research CentreGizaEgypt Microbial Genetics Department Biotechnology Research InstituteNational Research CentreGizaEgypt Egypt Center f.r Research and Regenerative Medicine(ECRRM) CairoEgypt

Egyptian species of.the leaf.opper genus Exitianus Ball,1929,***(St?l,1855),***(Distant,1908),and *** Ross,1968 are ***,morphological descriptions,and a key f.r their identif.cation are *** this study,we used molecular techniques to conf.rm morphological identif.cation and detect phylogeny among the three Exitianus *** partial nucleotide sequences of.the amplif.ed products obtained were determined by Macrogen *** nucleotide sequences of.28S rDNA and COX genes of.the EGY-ARC-9,EGY-ARC-4,and EGY-ARC-5 were determined by Macrogen Korea,blasted into BLAST at the National Center f.r Biotechnology Inf.rmation website(NCBI)and compared with those deposited in the GenBank DNA *** results represented the homology percentage between the partial sequences of.the 28S rRNA and COX genes f.om each species and related species obtained f.om GenBank DNA *** morphological identif.cations of.the three Exitianus species were conf.rmed by molecular characterization and sequencing of.28S rDNA and COX genes and identif.ed as ***,***,and ***,their sequences of.28srDNA and COX genes were deposited in GenBank with an accession number(LC670610,LC670607,and OQ196105)f.r 28srDNA gene and(LC775357,LC775358,and LC775359)f.r the COX gene.

关键词： Auchenorrhyncha Chaismini taxonomic 28S rDNA phylogenetic

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Characterization of.conception drawing in architecture to f.ce technological mediations

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f.ontiers of.Architectural Research 2024年第3期13卷 425-438页

作者： Hugo C.Gomez-Tone Javier f.Raposo Grau Departamento de Ideación Gráf.ca Arquitectónica Universidad Politécnica de MadridMadrid 28040Spain Departamento de Arquitectura Universidad Nacional de San Agustín de ArequipaArequipa 04001Peru

The conception drawing in architecture is that allows to initiate the architectural thinking,visualizing,and discovering the f.rst *** drawing has traditionally been given as an act of.linking and collaboration between thought,sight,and the movement of.the hands with a *** and recognizing its characteristics will make it possible to deal with any mediation of.inf.rmation *** establish such characteristics,three case studies were carried *** analysis was made of.the conception drawings and interviews by the Pritzker Prize laureates:Ando,Hadid and *** condition and f.ur characteristics have been determined:drawing is a phenomenological action that produces haptic drawings;it is an undecided process that originates unf.rmed drawings;it is a f.st action that results in small and multiplied drawings;it is a perceptual act that generates redrawn and remarked drawings;and f.nally,it is an action that seeks to remember to resume the creative process at another moment,which produces rudimentary conventional *** these bef.re any technological mediation will be an important pedagogical contribution that will allow f.ture architects not to alter the cognitive processes that generate the f.rst ideas in the initial moments of.the architectural project.

关键词： Conception drawing Architectural thinking Graphic ideation Concept Creativity

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