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颗粒学报（英文版）
颗粒学报（英文版）

郭慕孙

双月刊

1674-2001

jcsp@home.ipe.ac.cn

010-82629146

100080

北京中关村北二条1号中科院过程所内

颗粒学报（英文版）/Journal China ParticuologyCSCDCSTPCD北大核心EISCI
查看更多>>本刊以创精品与国际化为办刊方针，旨在反映中国颗粒学研究的最新成果、及时追踪国际颗粒学领域的最新动态。学报主要刊登国内外颗粒学领域中的研究、工程和应用方面的优秀原始论文，包括颗粒测试与表征、颗粒制备与处理、流态化、气溶胶和超微颗粒等。本刊不仅设有论坛、研究论文、研究简报等内容，还有书评、会议信息与报道、测试仪器进展等栏目，便于相关人士进行学术交流，并为科技成果的展示提供平台，信息十分丰富。本刊已陆续被美国化学文摘（CA），俄罗斯文摘杂志（AJ），剑桥科学文摘（CSA）以及中国科技论文与引文数据库(CSTPCD)收录。China PARTICUOLOGY, a bimonthly interdisciplinary journal in English, purports to present the best papers in research, engineering and application in the overall field of PARTICUOLOGY, including particle characterization, particle preparation, aerosol, fluidization and ultra-fine particles. The word PARTICUOLOGY was coined to correspond to its Chinese terminology, which denotes both the science and technology of particles. Although the journal is China-based, it serves as a medium for all accepted papers of international origin, especially the best papers representing current advances in the world. Besides scientific and engineering papers, the journal includes the following sections: R & D notes, Current events, Editorials reviews, Forum for comments, opinions and qualified speculations, News on books, instruments and meetings.Now， China Particuology has been indexed by CA, AJ , CSA and CSTPCD.??读者对象（Audiences）： 中国颗粒学会会员、国内外从事颗粒学和颗粒技术研究和生产的大专院校师生、科研院所及企业的研究人员和技术人员。 Member of Chinese Society of Particuology, and researchers or experts who are engaged in the study of particle sciences and technology coming from colleges, institutes and corporations all over the world.
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    Mechanisms for different cyclabilities of commercial LiCoO2/artificial graphite pouch cells at-10,0,and 25℃

    Renbo DengShiran LiQianqian WangJiaying Liang...
    145-153页
    查看更多>>摘要：Although a few studies reveal the reasons of poor charge-discharge abilities for lithium-ion batteries based on LiNixMnyCo1-x-yO2 at low temperature,there are still some practical issues worthy of further investigation.For instance,how the side reactions affect the cyclabilities of commercial LiCoO2/artificial graphite(LCO/AG)cells at different low temperatures,and are the synergistic effects between the side reactions similar to that at room temperature?To answer the issues,the performances of a～3 Ah LCO/AG pouch cell at different temperatures and C-rates are studied.Results illustrate that the obvious in-crease in charge transferring impedance especially in AG anode at low temperature causes large po-larization,then reducing charge-discharge ability and even yielding lithium deposition at-10℃ and 0.5C under 3-4.45 V.Different from at room temperature,the side reactions such as electrolyte decomposition and electrode structural evolution reduce significantly at low temperature,which contribute to an excellent cyclability after 500 cycles at 0℃.Instead,a series of chain reactions cause a relative lower cyclability at 25℃.Lithium deposition is slight after 5 cycles at-10℃,but become considerably severe after 20 cycles and cause rollover failure of capacity.All these results deepen the understanding on mechanisms for different behaviors of LCO/AG cells at low temperature and provide optimization direction.
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    Investigation on the particle loss and applicability of aviation nvPM measurement methodology for wide particle size ranges

    Minghua WangLiuyong ChangXuehuan HuMeiyin Zhu...
    154-165页
    查看更多>>摘要：The precise measurement of non-volatile Particulate Matter(nvPM)is outlined in aviation engine emissions regulations by the International Civil Aviation Organization(ICAO).However,assessing particle losses in the sampling and transfer unit presents challenges,raising concerns about the system's reli-ability.Moreover,nvPM emissions from small and medium aircraft engines,with thrust not exceeding 26.7 kN,vary widely in size,adding complexity to the measurement process.To provide a comprehensive analysis of particle losses in the sampling and transfer subsystems,this study established a test bench equipped with a nanoparticle generator.The generator simulates nvPM emissions from medium and small aircraft engines and can consistently produce nvPMs with a wide range of concentrations(103-107/cm3)and size distributions(20-160 nm).Thermophoretic loss verification experiments were conducted within the sampling pipeline under significant temperature differences,investigating the effects of particle size,temperature gradient,and airflow rate on thermophoretic particle losses.The experimental results demonstrated good agreement with the predictions of the model proposed by United Technol-ogies Research Centre(UTRC).After correcting for temperature,the experimental data showed a maximum disparity of 2％under typical engine exhaust conditions,validating the predictability of the thermophoretic loss model for various engine types.Furthermore,verification experiments for particle diffusion and bending losses were performed.Comparative analysis with the UTRC model revealed nvPM inertial deposition under laminar flow conditions with low Reynolds numbers(Re).As the Re increased,the measured data more closely aligned with the simulations.Bending losses due to secondary flow patterns ranged from 1％to 10％,depending on particle size and flow rate.This finding supports the applicability of aviation nvPM measurement methods across a wide particle size range.This research provides theoretical support for future nvPM measurements on various aircraft engines,laying the groundwork for improved accuracy and reliability in emissions monitoring.
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    Quantitative characterization of granular size segregation:A critical review

    Cong LengChengfeng SunZhehan LiaoJian Xu...
    166-177页
    查看更多>>摘要：Granular size segregation is an inevitable phenomenon in both natural and industrial processes.To understand the underlying mechanisms and develop effective optimization strategies,it is essential to employ robust methodologies that can quantitatively characterize and evaluate size segregation be-haviors in granular systems.This review critically examines a wide variety of state-of-the-art method-ologies from recent studies to quantify granular size segregation.The features of these methodologies are extracted and organized into a comprehensive framework.Four key questions are thoroughly discussed:evaluation criteria for identical segregation states,sensitivity to sample size,the influence of sampling division pattern,and the capability of handling multiple-component system.Finally,we provide an outlook on the future development of advanced and effective methodologies for granular size segre-gation characterization.
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    Experimental study on variable load regulation of circulating fluidized bed with high temperature preheated activated fuel

    Weijian SongZihua TangGuoliang SongJianguo Zhu...
    178-188页
    查看更多>>摘要：The circulating fluidized bed(CFB)boiler is an essential option,serving as a flexible power source.However,it is notable that CFB boilers exhibit noticeable limitations in rapid load changes.This study delved into the impact of fuel characteristics on CFB load change rate,combustion efficiency,and original NOx emissions using a 2 MW CFB experimental platform.The findings revealed that blending pulverized coal or modified fuel positively influenced the improvement of CFB load change rate,with blending modified fuel showing a more significant effect.Blending the modified fuel and pulverized coal increased the load change rate within the 50％-100％range by 164.4％and 57.3％,respectively.Additionally,blending pulverized coal and modified fuel significantly reduced NOx emissions,although there remained room for improvement in combustion efficiency.Compared to conventional combustion,blending pulverized coal and blending modified fuel decreased NOx emissions by 35.9％and 41.4％at 100％load,respectively.
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    Development of a two-stage virtual impactor for the generation of micrometer-scale monodisperse aerosols

    Jun-Hyung LimIgor KimSe-Jin Yook
    189-197页
    查看更多>>摘要：Monodisperse particles are useful across a wide range of industrial applications,such as LCD displays,solar cells and rechargeable batteries,due to their uniformly small sizes.However,generating high volumes of monodisperse particles remains challenging.In this study,it was aimed to generate mono-disperse aerosols by classifying micrometer-scale solid aerosol particles within a narrow size range.Accordingly,a new particle-size classification device with two virtual impactors connected in series and clean air cores was developed.The first-stage virtual impactor had a slightly larger cutoff size than the second-stage,and the major flow discharged from the first-stage was directed to the second-stage.The target particle size range was altered by changing the nozzle sizes in the first and second stages or by adjusting the flow rate.Subsequently,the classification performance of the two-stage virtual impactor was simulated and validated through an experiment using Arizona test dust.The implemented combi-nations of cutoff sizes for the first and second stages were 3.0 and 2.0 μm,3.9 and 2.7 μm,or 6.7 and 4.8 μm.As a result,monodisperse aerosol particles were classified at a geometric standard deviation of 1.04-1.14 and a particle size range of 2-6.7 μm.The two-stage virtual impactor developed herein may be useful for various research and performance evaluations,as it can classify micrometer-scale solid particle aerosols that exhibit high monodispersity.
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    A novel freemium code SAND(v1.0)for generation of randomly packed beds

    Nikita ShadymovViacheslav PapkovDmitry Pashchenko
    198-211页
    查看更多>>摘要：The main current approaches for generation of the packed bed models are based on rigid body dynamics(RBD)and Newton's laws(discrete element methods-DEM).This paper deals with the development and analysis of a novel code based on analytical geometry approach for the packed bed generation.The ar-chitecture and main algorithms of the novel code are described and clarified.The parameters of the packed bed generated via the novel code are compared with experimental data and packed beds generated via Blender(RBD),Yade(DEM).The novel code demonstrates many advantages,such as good correlation with experimental data,no overlaps between pellets in the packed bed,and a low compu-tational time for packed bed generation.The packed bed model can be directly exported in.step format.Other advantages are also demonstrated and clarified.The novel code is attached to this paper and can be freely used by engineers and scientists.
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    Exploring the therapeutic potential of microwave-assisted biosynthesized silver nanoparticles using Erica manipuliflora Salisb.:A comprehensive study on anticancer and antibacterial potentials

    Funda Ulusu
    212-222页
    查看更多>>摘要：Silver nanoparticles(AgNPs)continue to attract interest due to their potential applications in biomed-icine,especially in relation to their antibacterial and anticancer properties.In this respect,it is important to develop biosynthesis techniques that are environmentally friendly and include new sources.This is the first report on microwave-assisted green synthesis of silver nanoparticles using Erica manipuliflora Salisb.(E.m AgNPs).In this study,the anti-cancer and antibacterial activity of E.m AgNPs and E.manipuliflora extracts were evaluated.Characterization of E.m AgNPs were performed using UV-Vis spectroscopy FT-IR,XRD,SEM and TEM analyses.The UV-Vis absorption spectrum showed the char-acteristic peak of E.m AgNPs at λmax=425 nm.The SEM and TEM results indicated that the nanoparticles were spherical and ranged in size from 2.45 to 9.95 nm.The antibacterial results,it was determined that E.m AgNPs(50 mg mL-1)(8.4-21.1 mm ZOI)caused more effective inhibition on both gram positive(Bacillus subtilis,Staphylococcus aureus,Enterococcus faecalis)and gram negative(Escherichia coli)bacteria compared to all plant extracts(50 mg mL-1)(8.13-17.16 mm ZOI).Among the cancer(MCF-7 and HT-29)and healthy(HaCaT and HEK-293)cell lines,E.m AgNPs exhibited the highest cytotoxicity against MCF-7 cells(IC50:87.22 μg mL-1).The hexane extract was the most effective inhibitory extract on cell pro-liferation of all cell lines and showed the highest cell inhibition in MCF-7 cells(IC50:43.06 μg mL-1).The results revealed that both E.m AgNPs and E.manipuliflora extracts showed promising antibacterial activity against pathogenic bacterial strains and had potential anticancer activity.
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    Mixing state and evolutionary mechanism of oxalic acid homologs in Liaocheng,East China:Insights from seasonal and hourly observations

    Jiangkai MaJingjing MengYanhui WangXuan Liu...
    223-234页
    查看更多>>摘要：Oxalic acid(C2)is a significant tracer of secondary organic aerosols(SOA),yet its precursors,evolutionary processes,and formation mechanisms are not fully understood.This knowledge gap leads to un-certainties in evaluating the climate effect and global budget of SOA.Here we compared the size dis-tribution,mixing fraction,and evolutionary mechanism of C2-containing particles between summer and winter.In summer,the number of C2 particles and their homologs decreased compared to winter.However,the proportion of C2 relative to the total number of determined particles increased,indicating that the summertime particles are more aged.Higher relative aerosol acidity(Rra)and lower in-situ pH(pHis)in summer suggest that particles are more acidic during this season.Correlation analysis and temporal variation characteristics suggest that from 9:00 to 15:00 in summer,C2 particles mostly originate from the photochemical decomposition of larger dicarboxylic aids,driven by O3 concentration.Conversely,from 16:00 to 20:00,C2 particles are predominantly formed through aqueous-phase oxidation,influenced by higher relative humidity(RH),aerosol liquid water content(ALWC),and acid-ity.Additionally,heavy metal particles were the predominant type of C2 particles,and C2 particles exhibited an opposite diurnal variation to Fe in summer,suggesting that the photolysis of iron oxalate complexes is an important sink of C2 particles during this period.In winter,biomass burning(BB)par-ticles were the most abundant,and a robust correlation between levoglucosan and C2 particles indicated a substantial influence of BB on C2 particles.The aqueous generation of C2 particles from α-dicarbonyls driven by acidity was most effective when RH varied from 40％to 60％in the wintertime state of particles.These findings highlight the hourly and seasonal variations in the sources and evolutionary processes of SOA.Such variations must be considered in developing control measures and simulating the climate effect of SOA.
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    Cyclone dimensionless pressure drop,cut size,and separation slope:One dimensionless number(Reynolds)to rule them all

    Dzmitry MisiuliaGöran LidénSergiy Antonyuk
    235-251页
    查看更多>>摘要：The flow field and performance characteristics of the high-efficiency Stairmand cyclone have been computationally investigated at a wide range of Reynolds numbers Reout=84-252876 by varying the cyclone diameter,inlet velocity,operating temperature and pressure using the LES simulations.The effects of these parameters on the dimensionless cyclone performance characteristics(Euler number,square root of Stokes number and slope of the transformed grade efficiency curve)and dimensionless lip flow and lip velocity have been revealed.Five critical Reynolds numbers which correspond to the transition between different regimes and sub-regimes have been determined.All three dimensionless cyclone performance characteristics and two lip flow characteristics are ruled by the Reynolds number.
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    Bioengineered silver nanoparticles induced apoptosis through upregulation of caspase 3 and caspase 8 proteins in breast adenocarcinoma MDA-MB-231 cells and impede angiogenesis

    Shahnaz MajeedNurul Izzah Binti Abu BakarMohammad DanishAfzan Binti Mahmad...
    252-264页
    查看更多>>摘要：In recent years,a lot of research has been done on silver nanoparticles(SNP)due to their numerous applications in the biomedical,pharmaceutical,and drug delivery industries.In this present study SNP were green synthesized using Melicope lunu-ankenda(M.lunu-ankenda)leaf extract.The addition of AgNO3 causes a color change.L-arginine addition results in further colour changes confirming conju-gation.A UV-Vis spectrophotometric examination showed that the absorption peak for SNP was 435 nm,while the peak for L-arginine SNP(cSNP)was 422 nm.FTIR analysis confirmed the association of amides and amines with nanoparticles.The spherical nature of the silver was disclosed by SEM,and its elemental character is verified by EDS.The thermal stability of the nanoparticles is determined by TGA analysis,while TEM examination verifies their spherical shape.Using the MTT assay,these cSNP exhibited outstanding toxicity analysis(IC50 38.72 μg/ml)against MDA-MB-231 cells.These cSNP causes damage to the mitochondria(JC1 staining),which causes oxidative stress and the production of ROS with 83％of DCF expression in cancer cells.Furthermore,as demonstrated by the Comet assay and DAPI,these cSNP cause good DNA damage in the treated cells.Additionally,using flow cytometry,cSNPs potentially trigger apoptosis by triggering the expression of caspase 3 and caspase 8 proteins.Additionally,through CAM,cSNP demonstrated strong anti-angiogenesis activity by reducing the number of blood vessel branches.These findings suggest that cSNP may be crucial for drug delivery and cancer treatment.
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