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Slow Pyrolysis of Sugarcane Bagasse for the Production of Char and the Potential of Its By-Product for Wood Protection

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Journal of renewable Materials 2021年第1期9卷 97-117页

作者： Febrina dellarose boer Jérémy Valette Jean-Michel Commandré Mériem Fournier Marie-France Thévenon CIrAD UR BioWooEBTA B-114/1673 Rue Jean-François BretonF-34398 MontpellierCedex 5France BioWooeB Universitéde MontpellierCIRADMontpellierFrance AgroParisTech Centre de Nancy Nancy54000France Universitéde Lorraine AgroParisTechINRAUMR SilvaNancyF-54000France

Sugarcane bagasse was pyrolyzed using a laboratory fixed bed reactor to produce char and its by-product(pyrolysis liquid).The pyrolysis experiments were carried out using different temperatures(400℃ and 500℃),heating rate(1℃/min and 10℃/min),and holding time(30 min and 60 min).Char was characterized according to its thermal properties,while the pyrolysis liquid was tested for its anti-fungal and anti-termite *** temperature and heating rate had a significant influence on the char properties and the yield of char and pyrolysis liquid,where a high-quality char and high yield of pyrolysis liquid can be obtained at a temperature of 500℃ and a heating rate of 10℃/*** yield of char and pyrolysis liquid was 28.97%and 55.46%,*** principal compounds of pyrolysis liquid were water,acetic acid,glycolaldehyde,1-hydroxy-2-propanone,methanol,formic acid,levoglucosan,furfural,followed by some phenol compounds and guaiacol *** liquid at a concentration of 0.20%and 0.25%(v/v)caused a 100%inhibition of Coniophora puteana and Trametes versicolor,respectively,when performing inhibition growth tests in Petri *** paper treated with 10%of pyrolysis liquid caused 100%of termite mortality,while only 5.65%–7.03%of the treated filter papers consumed by termites at such *** liquid is potentially effective to be used in the formulation of wood protection against fungi and termites.

关键词： Anti-fungal anti-termite biomass char pyrolysis liquid slow pyrolysis sugarcane bagasse valorization

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Coeliac disease in Dutch patients with Hashimoto’s thyroiditis and vice versa

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World Journal of Gastroenterology 2007年第11期13卷 1715-1722页

作者： Muhammed Hadithi Hans de boer Jos Wr Meijer Frans Willekens Jo A Kerckhaert roel Heijmans Amado Salvador Pea Coen DA Stehouwer Chris JJ Mulder department of Gastroenterology Rijnstate Hospital PO Box 9555 6800 TA Arnhem The Netherlands department of endocrinology Rijnstate Hospital PO Box 9555 6800 TA Arnhem The Netherlands department of Pathology Rijnstate Hospital PO Box 9555 6800 TA Arnhem The Netherlands Laboratory of Biochemistry Rijnstate Hospital PO Box 9555 6800 TA Arnhem The Netherlands Laboratory of Biochemistry Immunology Rijnstate Hospital PO Box 9555 6800 TA Arnhem The Netherlands Laboratory of Immunogenetics VU University Medical Center Amsterdam PO Box 7057 1007 MB Amsterdam The Netherlands department of Internal Medicine University Hospital Maastricht P. Debyelaan 25 6229 HX Maastricht The Netherlands

AIM: To define the association between Hashimoto’s thyroiditis and coeliac disease in Dutch patients. MeTHODS: A total of 104 consecutive patients with Hashimoto’s thyroiditis underwent coeliac serological tests (antigliadins, transglutaminase and endomysium antibodies) and HLA-DQ typing. Small intestinal biopsy was performed when any of coeliac serological tests was positive. On the other hand, 184 patients with coeliac disease were subjected to thyroid biochemical (thyroid stimulating hormone and free thyroxine) and thyroid serological tests (thyroglobulin and thyroid peroxidase antibodies). reSULTS: Of 104 patients with Hashimoto’s thyroiditis, sixteen (15%) were positive for coeliac serology and five patients with documented villous atrophy were diagnosed with coeliac disease (4.8%; 95% CI 0.7-8.9). HLA-DQ2 (and/or -DQ8) was present in all the five and 53 patients with Hashimoto’s thyroiditis (50%; 95% CI 43-62). Of 184 patients with coeliac disease, 39 (21%) were positive for thyroid serology. Based on thyroid biochemistry, the 39 patients were subclassified into euthyroidism in ten (5%; 95% CI 2-9), subclinicalhypothyroidism in seven (3.8%; 95% CI 1.8-7.6), and overt hypothyroidism (Hashimoto’s thyroiditis) in 22 (12%; 95% CI 8-16). Moreover, four patients with coeliac disease had Graves’ disease (2%; 95% CI 0.8-5) and one patient had post-partum thyroiditis. CONCLUSION: The data from a Dutch population confirm the association between Hashimoto’s thyroiditis and coeliac disease. Screening patients with Hashimoto’s thyroiditis for coeliac disease and vice versa is recom- mended.

关键词： Autoimmune disease Coeliac disease Hashimoto's thyroiditis

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Surface brightens up Si quantum dots: direct bandgap-like size-tunable emission

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Light(Science & Applications) 2013年第1期2卷 242-247页

作者： Katerina Dohnalova Alexander N Poddubny Alexei A Prokofiev Wieteke DAM de boer Chinnaswamy P Umesh Jos MJ Paulusse Han Zuilhof Tom Gregorkiewicz Van der Waals-Zeeman Institute University of AmsterdamNL-1098 XH AmsterdamThe Netherlands Laboratory of Organic Chemistry Wageningen University6703 HB WageningenThe Netherlands department of Chemical and Materials engineering King Abdulaziz UniversityJeddahSaudi Arabia Ioffe Physical-Technical Institute rAS 26 Polytechnicheskaya194021 Saint-PetersburgRussia Current address:MIrA Institute Department of Biomedical ChemistryUniversity of TwenteBuilding Zuidhorst EnschedeThe Netherlands

Colloidal semiconductor quantum dots(QDs)constitute a perfect material for ink-jet printable large area displays,photovoltaics,light-emitting diode,bio-imaging luminescent markers and many other *** this purpose,efficient light emission/absorption and spectral tunability are necessary *** are currently fulfilled by the direct bandgap ***-QDs could offer the solution to major hurdles posed by these materials,namely,toxicity(e.g.,Cd-,Pb-or As-based QDs),scarcity(e.g.,QD with In,Se,Te)and/or *** we show that by combining quantum confinement with dedicated surface engineering,the biggest drawback of Si—the indirect bandgap nature—can be overcome,and a‘direct bandgap’variety of Si-QDs is *** demonstrate this transformation on chemically synthesized Si-QDs using state-of-the-art optical spectroscopy and theoretical *** carbon surface termination gives rise to drastic modification in electron and hole wavefunctions and radiative transitions between the lowest excited states of electron and hole attain‘direct bandgap-like’(phonon-less)*** results in efficient fast emission,tunable within the visible spectral range by QD *** findings are fully justified within a tight-binding theoretical *** the C surface termination is replaced by oxygen,the emission is converted into the well-known red luminescence,with microsecond decay and limited spectral *** that way,the‘direct bandgap’Si-QDs convert into the‘traditional’indirect bandgap form,thoroughly investigated in the past.

关键词： direct bandgap optical spectroscopy optoelectronics organic capping silicon quantum dots tight binding model

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Modular operation of microfluidic chips for highly parallelized cell culture and liquid dosing via a fluidic circuit board

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Microsystems & Nanoengineering 2020年第1期6卷 106-121页

作者： A.r.Vollertsen D.de boer S.dekker B.A.M.Wesselink r.Haverkate H.S.rho r.J.Boom M.Skolimowski M.Blom r.Passier A.van den Berg A.D.van der Meer M.Odijk BIOS Lab on Chip Group MESA+Institute for NanotechnologyUniversity of TwenteEnschedeThe Netherlands Mesoscale Chemical Systems MESA+Institute for NanotechnologyUniversity of TwenteEnschedeThe Netherlands Institute for Technology-Inspired regenerative Medicine Maastricht UniversityMaastrichtThe Netherlands Micronit Microtechnologies EnschedeThe Netherlands Applied Stem Cell Technologies TechMed CentreUniversity of TwenteEnschedeThe Netherlands

Microfluidic systems enable automated and highly parallelized cell culture with low volumes and defined liquid *** achieve this,systems typically integrate all functions into a single,monolithic device as a“one size fits all”***,this approach limits the end users’(re)design flexibility and complicates the addition of new functions to the *** address this challenge,we propose and demonstrate a modular and standardized plug-and-play fluidic circuit board(FCB)for operating microfluidic building blocks(MFBBs),whereby both the FCB and the MFBBs contain integrated valves.A single FCB can parallelize up to three MFBBs of the same design or operate MFBBs with entirely different *** operation of the MFBBs through the FCB is fully automated and does not incur the cost of an extra external *** use this modular platform to control three microfluidic large-scale integration(mLSI)MFBBs,each of which features 64 microchambers suitable for cell culturing with high spatiotemporal *** show as a proof of principle that we can culture human umbilical vein endothelial cells(HUVeCs)for multiple days in the chambers of this ***,we also use the same FCB to control an MFBB for liquid dosing with a high dynamic *** results demonstrate that MFBBs with different designs can be controlled and combined on a single *** novel modular approach to operating an automated microfluidic system for parallelized cell culture will enable greater experimental flexibility and facilitate the cooperation of different chips from different labs.

关键词： FCB operation culture

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The histopathological spectrum of myocardial inflammation in relation to circumstance of death:a retrospective cohort study in clinical and forensic autopsies

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Forensic Sciences research 2022年第2期7卷 238-246页

作者： romy du Long Judith Fronczek Hans W.M.Niessen Allard C.van der Wal Hans H.de boer department of Pathology Amsterdam University Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands department of Forensic Medicine Netherlands Forensic InstituteThe HagueThe Netherlands

Interpreting a myocardial inflammation as causal,contributory or as of no significance at all in the cause of death can be challenging,especially in cases where other pathologic and/or medico-legal findings are also *** further evaluate the significance of myocardial inflammation as a cause of death we performed a retrospective cohort study of forensic and clinical autopsy *** revised the spectrum of histological inflammatory parameters in the myocardium of 79 adult autopsy cases and related these to the reported cause of *** slides were reviewed for the distribution and intensity of inflammatory cell infiltrations,the predominant inflammatory cell type,and the presence of inflammation-associated myocyte injury,fibrosis,edema and ***,the cases were divided over three groups,based on the reported cause of *** 1(n=27)consisted of all individuals with an obvious unnatural cause of *** 2(n=29)included all individuals in which myocarditis was interpreted to be one out of more possible causes of *** 3(n=23)consisted of all individuals in which myocarditis was reported to be the only significant finding at autopsy,and no other cause of death was *** application of our histological parameters showed that only a diffuse increase of inflammatory cells could discriminate between an incidental presence of inflammation(Group 1)or a potentially significant one(Groups 2 and 3).No other histological parameter showed significant differences between the *** results suggest that generally used histological parameters are often insufficient to differentiate an incidental myocarditis from a(potentially)significant one.

关键词： Forensic sciences myocarditis myocardial inflammation diagnosis forensic pathology cause of death autopsy pathology

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Gd_2(Co,Al)_(17)化合物的结构和磁晶各向异性

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稀有金属材料与工程 2005年第1期34卷 41-45页

作者：顾正飞刘正义曾德长梁思祖 F.r.de boer K.H.J.Buschow 桂林电子工业学院广西桂林541004 华南理工大学 University of Amsterdam Amsterdamthe Nether lands

通过磁性测量和X-射线衍射研究了Gd2Co17-xAlx化合物的结构和磁晶各向异性。当x≤4时,样品具有菱方Th2Zn17型结构,x=5时,具有六方CaCu5型结构。随着Al浓度增加,晶格常数和单胞体积单调增大,而居里温度和自发磁化强度近似线性地减小;在x... 详细信息

通过磁性测量和X-射线衍射研究了Gd2Co17-xAlx化合物的结构和磁晶各向异性。当x≤4时,样品具有菱方Th2Zn17型结构,x=5时,具有六方CaCu5型结构。随着Al浓度增加,晶格常数和单胞体积单调增大,而居里温度和自发磁化强度近似线性地减小;在x≥1时,观察到Co亚点阵的磁晶各向异性变号,室温易磁化方向由易面转变为易轴,且易轴各向异性场和各向异性常数随Al原子浓度增加出现极大值;基于补偿温度(65K)下自由粉末颗粒的磁化曲线,导出了亚点阵间的分子场系数和Gd-Co交换耦合常数,结果表明,Al原子对Gd-Co交换耦合作用的影响较小。根据Al原子在Co亚点阵4种晶位的择优占位,分析了磁晶各向异性的演变。

关键词： Gd2(Co,Al)17化合物磁晶各向异性择优占位

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退火温度对Gd_2(Co,Al)_(17)合金相组成和热磁特性的影响

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功能材料 2005年第8期36卷 1185-1188页

作者：顾正飞刘正义梁思祖曾德长 F.r.de boer K.H.J.Buschow 桂林电子工业学院信息材料科学与工程系广西桂林541004 华南理工大学机械工程学院广东广州510640 Van der Waals-Zeeman Institute University of Amsterdam AmsterdamThe Netherlands

用X射线衍射、金相观察、电子探针、透射电镜和磁性测量研究了Gd2Co17-xAlx(x≤5)合金的微结构、相组成、相成分和热磁特性。结果表明,在1173和1323K退火的x≤3的样品和在1323K退火的x=4的样品近似为单相,2∶17主相仅含Gd、Co、Al 3种元... 详细信息

用X射线衍射、金相观察、电子探针、透射电镜和磁性测量研究了Gd2Co17-xAlx(x≤5)合金的微结构、相组成、相成分和热磁特性。结果表明,在1173和1323K退火的x≤3的样品和在1323K退火的x=4的样品近似为单相,2∶17主相仅含Gd、Co、Al 3种元素,具有菱方Th2Zn17型结构,少量杂质相是富Gd氧化物、富Co相或-ζCoAl相;在1173K退火的x=4的样品含有较多的第二相,它是具有六方CaCu5型结构的1∶5相;x=5的退火样品是三相,主相是1∶5相,第二相和第三相分别是2∶17相和具有CsCl结构的-ζCoAl相,提高退火温度,样品的2∶17相含量增多,1∶5相相应减少;在室温以下,样品(x≤4)的自发磁化强度随温度降低而减小,在74和65K附近,x=4的两相样品和单相样品的自发磁化强度M0先后降为零,但x=5的样品磁距随温度降低而增大。

关键词：稀土钴合金微结构相成分热磁特性

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Number of J/ψ events at BeSIII

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Chinese Physics C 2022年第7期46卷 74-84页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht r.Aliberti A.Amoroso M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Ferroli I.Balossino Y.Ban K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko r.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov G.Chen H.S.Chen M.L.Chen S.J.Chen X.r.Chen Y.B.Chen Z.J.Chen W.S.Cheng G.Cibinetto F.Cossio J.J.Cui X.F.Cu H.L.Dai J.P.Dai X.C.Dai A.Dbeyssi r.e.de boer D.dedovich Z.Y.deng A.denig I.denysenko M.destefanis F.de Mori Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du P.egorov Y.L.Fan J.Fang S.S.Fang Y.Fang r.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng M.Fritsch C.D.Fu Y.Gao Y.Gao I.Garzia P.T.Ge C.Geng e.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu C..Y.Guan A.Q.Guo A.Q.Guo L.B.Guo r.P.Guo Y.P.Guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris K.K.He K.L.He F.H.Heinsius C.H.Heinz Y.K.Heng C.Herold M.Himmelreich T.Holtmann G.Y.Hou Y.r.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain N Husken W.Ikegami Andersson W.Imoehl M.Irshad S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji Y.Y.Ji H.B.Jiang X.S.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin M.Q.Jing T.Johansson N.Kalantar-Nayestanaki X.S.Kang r.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz P.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kuhn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li H.N.Li J.L.Li J.Q.Li J.S.Li Ke Li L.K.Li Lei Li P.r.Li S.Y.Li W.D.Li W.G.Li X.H.Li X.L.Li Xiaoyu Li Z.Y.Li H.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang G.r.Liao L.Z.Liao J.Libby A.Limphirat C.X.Lin D.X.Lin T.Lin B.J.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu G.M.Liu H.M.Liu Huanhuan Liu Huihui Liu J.B.Liu J.L.Liu J.Y.Liu K.Liu K.Y.Liu Ke Liu L.Liu M.H.Liu P.L.Liu Q.Liu Q.Liu S.B.Liu T.Liu T.Liu W.M.Liu X.Liu Y.Liu Y.B.Liu Z.A.Liu Z.Q.Liu X.C.Lou F.X.Lu H.J.Lu J.D. Institute of High energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum ruhr-University D-44780 BochumGermany Camnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China G.I.Budker Institute of Nuclear Physies SBrAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly INFN Sezione di Perugia I-06100PerugiaItaly University of Perugia I-06100PerugiaItaly University of Ferrara I-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physies and Technology Peace Ave 54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen Ⅱ.Physikaliches InstitutHeinricH-Buff-Ring 16D-35392 GiessenGermany Lanzhou University Lnzhou 730000China Liaoning Normal University Dalian 116029China Liaoning University Shenyang 110036China Nanjing Normal University Nanjing 210023China Nanjing Univ

Using inclusive decays of J/ψ aprecise determination of the number of J/ψ events collected with the BeSIII detector was *** the two data sets taken in 2009 and 2012,the numbers of J/ψ events were recalculated to be(224.0±1.3)×10^(6) and(1088.5±4.4)×10^(6),respectively;these numbers are in good agreement with the previous measurements. For the J/ψ sample taken in 2017-2019,the number of events was determined to be(8774.0±39.4)×10^(6).The total number of J/ψ events collected with the BeSIII detector was determined to be(10087±44)×10^(6),where the uncertainty is dominated by systematic effects,and the statistical uncertainty is negligible.

关键词： number of J/ψevents BeSIII detector inclusive J/ψdecays

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Pulmonary immunization:deposition site is of minor relevance for influenza vaccination but deep lung deposition is crucial for hepatitis B vaccination

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Acta Pharmaceutica Sinica B 2019年第6期9卷 1231-1240页

作者： Jasmine Tomar Wouter FTonnis Harshad P.Patil Anne H.de boer Paul Hagedoorn rita Vanbever Henderik W.Frijlink Wouter L.J.Hinrichs department of Pharmaceutical Technology and Biopharmacy University of GroningenGroningen 9713 AVthe Netherlands Advanced Drug delivery and Biomaterials Louvain Drug Research Institute(LDRI)Universite catholique de LouvainBrussels 1200Belgium

Vaccination via the pulmonary route could be an attractive alternative to parenteral *** towards the best site of antigen deposition within the lungs to induce optimal immune responses has conflicting results which might be dependent on the type of vaccine and/or its physical ***,in this study,we explored whether deep lung deposition is crucial for two different vaccines,i.e.,influenza and hepatitis B *** view of this,influenza subunit vaccine and hepatitis B surface antigen were labeled with a fluorescent dye and then *** data showed that after pulmonary administration to mice the powders were deposited in the trachea/central airways when a commercially available insufflator was used while deep lung deposition was achieved when an in-house built aerosol generator was *** studies revealed that comparable immune responses were induced upon trachea/central airways or deep lung targeting of dry influenza vaccine ***,for hepatitis B vaccine,no immune responses were induced by trachea/central airways deposition whereas they were considerable after deep lung ***,we conclude that deep lung targeting is not a critical parameter for the efficacy of pulmonary administered influenza vaccine whereas for hepatitis B vaccine it is.

关键词： Inhalation Powders deep lung deposition Influenza Hepatitis B

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Study of BeSIII trigger efficiencies with the 2018 J/ψ data

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Chinese Physics C 2021年第2期45卷 48-55页

作者： M.Ablikim M.N.Achasov P.Adlarson S.Ahmed M.Albrecht r.Aliberti A.Amoroso M.r.An Q.An X.H.Bai Y.Bai O.Bakina r.Baldini Ferroli I.Balossino Y.Ban K.Begzsuren N.Berger M.Bertani D.Bettoni F.Bianchi J.Bloms A.Bortone I.Boyko r.A.Briere H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.Chelkov D.Y.Chen G.Chen H.S.Chen M.L.Chen S.J.Chen X.r.Chen Y.B.Chen Z.J Chen W.S.Cheng G.Cibinetto F.Cossio X.F.Cui H.L.Dai X.C.Dai A.Dbeyssi r.e.de boer D.dedovich Z.Y.deng A.denig I.denysenko M.destefanis F.de Mori Y.Ding C.Dong J.Dong L.Y.Dong M.Y.Dong X.Dong S.X.Du Y.L.Fan J.Fang S.S.Fang Y.Fang r.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng M.Fritsch C.D.Fu Y.Gao Y.Gao Y.Gao Y.G.Gao I.Garzia P.T.Ge C.Geng e.M.Gersabeck A Gilman K.Goetzen L.Gong W.X.Gong W.Gradl M.Greco L.M.Gu M.H.Gu S.Gu Y.T.Gu C.Y Guan A.Q.Guo L.B.Guo r.P.Guo Y.P.Guo A.Guskov T.T.Han W.Y.Han X.Q.Hao F.A.Harris H Hüsken K.L.He F.H.Heinsius C.H.Heinz T.Held Y.K.Heng C.Herold M.Himmelreich T.Holtmann Y.r.Hou Z.L.Hou H.M.Hu J.F.Hu T.Hu Y.Hu G.S.Huang L.Q.Huang X.T.Huang Y.P.Huang Z.Huang T.Hussain W.Ikegami Andersson W.Imoehl M.Irshad S.Jaeger S.Janchiv Q.Ji Q.P.Ji X.B.Ji X.L.Ji H.B.Jiang X.S.Jiang J.B.Jiao Z.Jiao S.Jin Y.Jin T.Johansson N.Kalantar-Nayestanaki X.S.Kang r.Kappert M.Kavatsyuk B.C.Ke I.K.Keshk A.Khoukaz P.Kiese r.Kiuchi r.Kliemt L.Koch O.B.Kolcu B.Kopf M.Kuemmel M.Kuessner A.Kupsc M.G.Kurth W.Kühn J.J.Lane J.S.Lange P.Larin A.Lavania L.Lavezzi Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.Li H.B.Li H.J.Li J.L.Li J.Q.Li J.S.Li Ke Li L.K.Li Lei Li P.r.Li S.Y.Li W.D.Li W.G.Li X.H.Li X.L.Li Z.Y.Li H.Liang H.Liang H.Liang Y.F.Liang Y.T.Liang L.Z.Liao J.Libby C.X.Lin B.J.Liu C.X.Liu D.Liu F.H.Liu Fang Liu Feng Liu H.B.Liu H.M.Liu Huanhuan Liu Huihui Liu J.B.Liu J.L.Liu J.Y.Liu K.Liu K.Y.Liu Ke Liu L.Liu M.H.Liu P.L.Liu Q.Liu Q.Liu S.B.Liu Shuai Liu T.Liu W.M.Liu X.Liu Y.Liu Y.B.Liu Z.A.Liu Z.Q.Liu X.C.Lou F.X.Lu H.J.Lu J.D.Lu J.G.Lu X.L.Lu Y.Lu Y.P.Lu C.L.Luo M.X.Luo b P.W.Luo T.Luo X.L.Luo S Institute of High energy Physics Beijing 100049China Beihang University Beijing 100191China Beijing Institute of Petrochemical Technology Beijing 102617China Bochum ruhr-University D-44780 BochumGermany Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China China Center of Advanced Science and Technology Beijing 100190China COMSATS University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200443China GIBudker Institute of Nuclear Physics SB rAS(BINP) Novosibirsk 630090Russia GSI Helmholtzcentre for Heavy Ion research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Helmholtz Institute Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University of Science and Technology Luoyang 471003China Huangshan College Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology Madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA (A)INFN Laboratori Nazionali di Frascati I-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly (A)INFN Sezione di Ferrara I-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Ave54BUlaanbaatar 13330Mongolia Jilin University Changchun 130012China Johannes Gutenberg University of Mainz Johann-Joachim-Becher-Weg 45D-55099 MainzGermany Joint Institute for Nuclear research 141980 DubnaMoscow regionRussia Justus-Liebig-Universitaet Giessen IIPhysikalisches InstitutHeinrich-Buff-Ring 16D-35392GiessenGermany KVI-CArT University of GroningenNL-9747 AA GroningenThe Netherlands Lanzhou University Lanzhou 730000China Liaoning Normal Unive

Using a dedicated data sample taken in 2018 on the J/ψpeak,we perform a detailed study of the trigger efficiencies of the BeSIII *** efficiencies are determined from three representative physics processes,namely Bhabha scattering,dimuon production and generic hadronic events with charged *** combined efficiency of all active triggers approaches 100%in most cases,with uncertainties small enough not to affect most physics analyses.

关键词： BeSIII trigger efficiency Bhabha dimuon hadronic events

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