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CFD-DEm analysis of particle polydispersity on the performance of fluidised bed reactor during silane pyrolysis Author links open overlay panel

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Particuology 2024年第8期91卷 72-87页

作者： Akshayveer Vijay m.Shinde mS2Discovery Interdisciplinary Research Institute Wilfrid Laurier UniversityWaterlooOntarioN2L3C5Canada Department of Chemical Engineering Indian Institute of Technology(BHU)Varanasi221005India

A CFD-DEm model is developed for chemical vapour deposition of silane in a fluidized bed reactor to investigate the effect of polydispersity on local phase dynamics,mass and heat transport,as well as the rate of Si *** gas-phase fines formation and heterogeneous deposition on the seed particle,as well as the scavenging effect for Si particle growth,are *** method is first validated against the experimentally measured Si deposition rate,percentage of fine production and minimum fluidisation ***,the properties,primarily particle intermixing,fluidisation behaviour and bubble dynamics along with the deposition process,are analyzed for several polydisperse beds under various operating *** effect of polydispersity of the bed on a fraction of the bubble size,dense phase expansion and interchange coefficient between various phases is thoroughly investigated to establish a correlation with reactor *** results show that broad-Gaussian particle size distribution(PSD)exhibits excellent improvement in fluidisation behaviour,resulting in a high deposition rate,and minimum formation of Si fines.

关键词： CFD-DEm method Chemical vapour deposition(CVD) Particle size distribution Silicon Gas-solid fluidized bed

fRAP 2.0:a community engagement method applied to cervical cancer disparities among Hispanic women

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Family medicine and Community Health 2024年第S2期12卷 44-57页

作者： Autumn m Kieber-Emmons Susan E Hansen michael Topmiller Jaskaran Grewal Carlos Roberto Jaen Benjamin F Crabtree William l miller Department of Family medicine Lehigh Valley Health NetworkAllentownPennsylvaniaUSA College of medicine USFTampaFloridaUSA lehigh Valley Health Network AllentownPennsylvaniaUSA American Academy of Family Physicians-Health landscape CincinattiOHUSA lafayette College EastonPennsylvaniaUSA UT Health San Antonio San AntonioTexasUSA Rutgers Robert Wood Johnson medical School PiscatawayNew JerseyUSA Cancer Institute of New Jersey New BrunswickNew JerseyUSA

focused Rapid Assessment Process(fRAP)2.0 is a community engagement approach combining geospatial mapping with rapid qualitative assessment in cyclical fashion within communities to capture multifactorial and multilevel features impacting primary care *** 2.0 offers primary care researchers a methodology framework for exploring complex community features that impact primary healthcare delivery and *** fRAP 2.0 study design expands the fRAP from a sequential design to a cyclical process of geospatial mapping and rapid qualitative assessment in search of modifiable contextual *** participants are stakeholders from various socioecological levels whose perspectives inform study outcomes that they may use to then become the agents of change for the very problems they helped ***,we present a proof-of-concept study for fRAP 2.0 examining disparities in cervical cancer mortality rates among Hispanic women in *** primary outcomes of interest are features at the community level,medical health system level and regional government policy levels that offer opportunities for collaborative interventions to improve cervical cancer *** this study,geospatial mapping of county and ZIP code-level variables impacting postdiagnosis cervical cancer care at community,medical and policy levels were created using publicly available data and then overlaid with maps created with Texas Cancer Registry data for cervical cancer cases in three of the largest population *** disparate areas were then qualitatively explored using participant observation and ethnographic field work,alongside 39 key informant *** discussion groups and stakeholder engagement existed at every phase of the *** the fRAP 2.0 method,we created an action-oriented roadmap of next steps to improve cervical cancer care disparities in the three Texas counties with emphasis on the high disparity *** identified local change

关键词： cervical qualitative policy

Cognitive function among military veterans with STEm occupations

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military medical Research 2024年第2期11卷 308-310页

作者： Justin T.mcDaniel Kevin N.Hascup Erin R.Hascup Ugochukwu G.Ezigbo Amanda m.Weidhuner Harvey Henson David l.Albright Dale and Deborah Smith Center for Alzheimer's Research and trEatment(CARE) Southern Illinois University School of MedicineSpringfieldIL 62794USA STEm Education Research Center Southern Illinois UniversityCarbondaleIL 62901USA Department of Political Science The University of AlabamaTuscaloosaAL 35487USA

Dear Editor,There is limited research on the relationship between science,technology,engineering,and mathematics(STEm)occupational history and cognitive function in later life,especially among military veterans,who may be at greater risk for later-life cognitive *** study examines a nationally representative sample of military veterans to address this gap in knowledge.

关键词： Alzheimer's disease Veterans Science technology engineering and mathematics(STEm) Animal fluency test Dementia

Feasibility of achieving net-zero energy performance in high-rise buildings using solar energy

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Energy and Built Environment 2024年第6期5卷 946-956页

作者： mehrdad Shirinbakhsh l.D.Danny Harvey University of Toronto 100St.George StreetTorontoONM5S 3G3Canada

As part of a broad strategy to reach net-zero greenhouse gas emissions and limit global warming,many countries are requiring all new buildings to have net-zero energy *** requires that on-site energy use not exceed on-site generation of renewable energy(taken here to be solar energy),or equivalently,that the building Energy Use Intensity(EUI,kWh/m^(2)a)not exceed the supply of on-site solar energy(electricity and heat)per m^(2)of floor area per *** this basis,we find that achieving net-zero energy performance in an archetype 40-story square building in 16 different cities of North America requires EUI of 17–24 kWh/m^(2)a using PV panels,and 19–28 kWh/m^(2)a using PVT *** building orientation to a non-square floor shape can improve maximum permitted EUI by up to 50%in PV and 60%in PVT ***,the best-performing residential and commercial buildings have EUIs of 50–75 kWh/m^(2)*** if building heights are limited to 5–10 floors does the available solar energy,and thus the permitted EUI,reach 50–75 kWh/m^(2)***,we recommend that policymakers not require high-rise buildings to be net-zero energy,unless they are prepared to limit building heights to 5–10 floors.

关键词： High-rise net-zero energy buildings Building geometry Building height Solar NZEB

Physiological phenotypes differ among color morphs in introduced common wall lizards(Podarcis muralis)

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Integrative Zoology 2024年第3期19卷 505-523页

作者： Ali AmER Sierra SPEARS Princeton l.VAUGHN Cece COlWEll Ethan H.lIVINGSTON Wyatt mCQUEEN Anna SCHIll Dustin G.REICHARD Eric J.GANGlOFF Kinsey m.BROCK Department of Biological Sciences Ohio Wesleyan UniversityDelawareOhioUSA Department of Ecology and Evolutionary Biology Princeton UniversityPrincetonNew JerseyUSA Department of Biology Idaho State UniversityPocatelloIdahoUSA Department of Environmental Science Policyand ManagementCollege of Natural ResourcesUniversity of CaliforniaBerkeleyUSA museum of Vertebrate Zoology University of CaliforniaBerkeleyUSA

many species exhibit color polymorphisms which have distinct physiological and behavioral ***,the consistency of morph trait covariation patterns across species,time,and ecological contexts remains *** trait covariation is especially relevant in the context of invasion biology and urban ***,physiological traits pertaining to energy maintenance are crucial to fitness,given their immediate ties to individual reproduction,growth,and population *** investigated the physiological traits of Podarcis muralis,a versatile color polymorphic species that thrives in urban environments(including invasive populations in Ohio,USA).We measured five physiological traits(plasma corticosterone and triglycerides,hematocrit,body condition,and field body temperature),which compose an integrated multivariate *** then tested variation among co-occurring color morphs in the context of establishment in an urban *** found that the traits describing physiological status and strategy shifted across the active season in a morph-dependent manner—the white and yellow morphs exhibited clearly different multivariate physiological phenotypes,characterized primarily by differences in plasma *** suggests that morphs have different strategies in physiological regulation,the flexibility of which is crucial to urban *** white-yellow morph exhibited an intermediate phenotype,suggesting an intermediary energy maintenance *** morphs also exhibited distinct phenotypes,but the low prevalence of this morph in our study populations precludes clear *** work provides insight into how differences among stable polymorphisms exist across axes of the phenotype and how this variation may aid in establishment within novel environments.

关键词： color polymorphism physiological status seasonal variation thermoregulation urban habitat

Further investigation on the fusion of ^(6)li with ^(209)Bi target at near-barrier energies

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Chinese Physics C 2024年第7期48卷 106-117页

作者：张高龙焦振威张广鑫 m.R.Cortes 胡世鹏钱建强 D.mengoni 屈卫卫李聪博郑云张焕乔孙慧斌王楠张春雷 J.J.Valiente-Dobón D.Testov m.mazzocco A.Gozzelino C.Parascandolo D.Pierroutsakou m.la Commara A.Goasduff D.Bazzacco D.R.Napoli F.Galtarossa F.Recchia A.Illana S.Bakes I.Zanon S.Aydin G.de Angelis m.Siciliano R.menegazzo S.m.lenzi J.l.Ferreira J.Rangel Serkan Akkoyun l.F.Canto J.lubian School of Physics Beihang UniversityBeijing 100191China Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen UniversityZhuhai 519082China Instituto de Física Universidade Federal Fluminense24210-340NiteróiRio de JaneiroBrazil Institute for Advanced Study in Nuclear Energy&Safety Shenzhen UniversityShenzhen 518060China Shenzhen Key laboratory of Research and manufacture of High Purity Germanium materials and Fetectors Shenzhen UniversityShenzhen 518060China INFN Sezione di PadovaPadovaItaly Dipartimento di fisica Astronomia dell'Universita di padova PadovaItaly State Key laboratory of Radiation medicine and Protection School of Radiation Medicine and ProtectionSoochow UniversitySuzhou 215123China China Institute of Atomic Energy Beijing 102413China The Key laboratory of Beam Technology and material modification of ministry of Education College of Nuclear Science and TechnologyBeijing Normal UniversityBeijing 100875China INFN Laboratori Nazionali di LegnaroI-35020 LegnaroItaly INFN Sezione di NapoliI-80126 NapoliItaly Dipartimento di Farmacia Universitàdi Napoli"Federico II"I-80131 NapoliItaly Department of Natural and mathematical Sciences Faculty of EngineeringTarsus University33480 MersinTurkiye Physics Division Argonne National LaboratoryLemont-ILUSA Departamento de matemaética Física e Computaç˜ao Universidade do Estado do Rio de JaneiroFaculdade de Tecnologia27537-000ResendeRio de JaneiroBrazil Department of Physics Sivas Cumhuriyet UniversitySivasTurkey Instituto de Física Universidade Federal do Rio de JaneiroCP 6852821941-972Rio de JaneiroBrazil

The complete and incomplete fusion cross sections for ^(6)li+^(209)Bi were measured using the in-beamγ-ray method around the Coulomb *** cross sections of(deuteron captured)incomplete fusion(ICF)products were re-quantified experimentally for this reaction *** results reveal that the ICF cross section is equivalent to that of complete fusion(CF)above the Coulomb barrier and dominant near or below the Coulomb barrier.A theoretical calculation based on the continuum discretized coupled channel(CDCC)method was performed for the aforementioned CF and ICF cross sections;the result is consistent with the *** universal fusion function(UFF)was also compared with the measured CF cross section for different barrier parameters,demonstrating that the CF suppression factor is significantly influenced by the choice of potential,which can reflect both dynamic and static effects of breakup on the fusion process.

关键词： cross section incomplete fusion suppression factor weakly bound nuclei

Effect of Al_(2)O_(3)on the mechanical Properties of(B_(4)C+Al_(2)O_(3))/Al Neutron Absorbing materials

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Acta metallurgica Sinica(English letters) 2024年第8期37卷 1411-1420页

作者： J.X.Cai B.m.Shi N.li Y.liu Z.G.Zhang Y.N.Zan Q.Z.Wang B.l.Xiao Z.Y.ma Shi‑Changxu Innovation Center for Advanced materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key laboratory of Nuclear materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Nuclear Equipment Division Beijing Institute of Nuclear EngineeringChina Nuclear Power Engineering Co.Ltd.Beijing 100840China Department of materials Science School of Mechanical EngineeringShenyang UniversityShenyang 110044China

B_(4)C/Al composites are widely utilized as neutron absorbing materials for the storage and transportation of spent nuclear *** order to improve the high-temperature mechanical properties of B_(4)C/Al composites,in-situ nano-Al_(2)O_(3)was introduced utilizing oxide on Al powder *** this study,the Al_(2)O_(3)content was adjusted by utilizing spheroid Al powder with varying diameters,thereby investigating the impact of Al_(2)O_(3)content on the tensile properties of(B_(4)C+Al_(2)O_(3))/Al *** was found that the pinning effect of Al_(2)O_(3)on the grain boundaries could hinder the recovery of dislocations and lead to dislocation accumulation at high *** the result,with the increase in Al_(2)O_(3)content and the decrease in grain size,the high-temperature strength of the composites increased *** finest Al powder used in this investigation had a diameter of 1.4μm,whereas the resultant composite exhibited a maximum strength of 251 mPa at room temperature and 133 mPa at 350℃,surpassing that of traditional B_(4)C/Al composites.

关键词： Al matrix composites Neutron absorbing materials (B_(4)C+Al_(2)O_(3))/Al composites High-temperature strength

mogroside IIE,an in vivo metabolite of sweet agent,alleviates acute lung injury via Pla2g2a-EGFR inhibition

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Food Science and Human Wellness 2024年第1期13卷 299-312页

作者： Weichao lü Guoqing Ren Kuniyoshi Shimizu Renshi li Chaofeng Zhang State Key laboratory of Natural medicines School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 211198China Sino-Jan Joint lab of Natural Health Products Research School of Traditional Chinese PharmacyChina Pharmaceutical UniversityNanjing 211198China Faculty of Agriculture Kyushu UniversityFukuoka 819-0395Japan

In the face of increasingly serious environmental pollution,the health of human lung tissues is also facing serious *** IIE(m2E)is the main metabolite of sweetening agents mogrosides from the anti-tussive Chinese herbal Siraitia *** study elucidated the anti-inflammatory action and molecular mechanism of m2E against acute lung injury(AlI).A lipopolysaccharide(lPS)-induced AlI model was established in mice and mH-S cells were employed to explore the protective mechanism of m2E through the western blotting,co-immunoprecipitation,and quantitative real time-PCR *** results indicated that m2E alleviated lPS-induced lung injury through restraining the activation of secreted phospholipase A2 type IIA(Pla2g2a)-epidermal growth factor receptor(EGFR).The interaction of Pla2g2a and EGFR was identified by *** addition,m2E protected AlI induced with lPS against inflammatory and damage which were significantly dependent upon the downregulation of AKT and m TOR via the inhibition of ***2g2a may represent a potential target for m2E in the improvement of lPS-induced lung injury,which may represent a promising strategy to treat AlI.

关键词： mogroside IIE Acute lung injury Secreted phospholipase A2 type IIA(Pla2g2a) Epidermal growth factor receptor(EGFR)

On an isotropic porous solid cylinder:the analytical solution and sensitivity analysis of the pressure

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Applied mathematics and mechanics(English Edition) 2024年第9期45卷 1499-1522页

作者： H.ASGHARI l.mIllER R.PENTA J.mERODIO Departamento de matematica Aplicada a las TIC ETS de Ingenieria de Sistemas InformaticosUniversidad Politecnica de MadridMadrid 28031Spain School of mathematics and Statistics University of GlasgowGlasgow G128QQU.K.

Within this work,we perform a sensitivity analysis to determine the influence of the material input parameters on the pressure in an isotropic porous solid *** provide a step-by-step guide to obtain the analytical solution for a porous isotropic elastic cylinder in terms of the pressure,stresses,and elastic *** obtain the solution by performing a laplace transform on the governing equations,which are those of Biot's poroelasticity in cylindrical polar *** enforce radial boundary conditions and obtain the solution in the laplace transformed domain before reverting back to the time *** sensitivity analysis is then carried out,considering only the derived pressure *** analysis finds that the time t,Biot's modulus m,and Poisson's ratio ν have the highest influence on the pressure whereas the initial value of pressure P_(0) plays a very little role.

关键词： sensitivity analysis laplace transform cylindrical polar coordinate Biot's modulus cylinder