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Particuology 2024年第7期90卷 51-60页

作者： Johannes Lunewski Eberhard schmidt Institute of Particle Technology University of WuppertalGermany

Dynamic image analysis provides an automated evaluation method to determine the size and shape of multiple particles. This method represents a common application for ordinary bulk material. The latest draft of IsO 13322–2:2021 describes the state of the art, but lacks instructions for handling fibrous bulk material. Interlocking fibres complicate the measurement conditions and require a disentanglement of fibrous samples during a pre-dispersion step. A further error source includes the fibre orientation inside the measurement zone of the device. If the thresholding algorithm fails to differentiate between the fibre projection area and the background, a subsequent image optimisation solves the problem. This article addresses the mentioned problems by analysing cotton cellulose and polyacrylonitrile fibres. Besides the execution of a pre-dispersion step, the experiments compare the discrepancies between dry and wet dispersion. Here, the software packages PAQXOs and ImageJ perform the image evaluation. In this case, the wet dispersion setup with a subsequent image evaluation by ImageJ provides comprehensible results.

关键词： Bootstrap method Dynamic image analysis Fibre diameter Fibre length distribution Natural fibres synthetic fibres

肠壁积气的临床意义——与临床结果和治疗有关的MDCT表现

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国际医学放射学杂志 2017年第2期 227-228页

作者： M.O.Treyaud R.Duran M.Zins J.F.Knebel R.A.Meuli s.schmidt 刘婧娟 Department of Diagnostic and Interventional Radiology Lausanne University Hospital

摘要目的评估肠壁积气的临床意义,以及对治疗及临床结局的影响。方法 2位放射科医师共同回顾了149例患有肠壁积气的急诊病人(女53例,年龄21～95岁,平均64

关键词：肠壁积气急诊病人 MDCT 肠壁缺血临床意义

Mechanistic modeling of copper corrosions in data center environments

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Building simulation 2024年第3期17卷 483-492页

作者： Rui Zhang Jianshun Zhang Roger schmidt Jeremy L.Gilbert Department of Mechanical and Aerospace Engineering College of Engineering and Computer ScienceSyracuse UniversitySyracuseNY13244USA Buildings and Transportation science Division Oak Ridge National LaboratoryOak RidgeTN37830USA syracuseCoE-New York Center of Excellence in Environmental and Energy systems Syracuse University727 E.Washington StreetSyracuseNY13244USA Department of Bioengineering Clemson UniversityClemson-Medical University of South Carolina Bioengineering ProgramCharlestonSC29425USA

Air-side economizers are increasingly used to take advantage of“free-cooling”in data centers with the intent of reducing the carbon footprint of ***,they can introduce outdoor pollutants to indoor environment of data centers and cause corrosion damage to the information technology *** evaluate the reliability of information technology equipment under various thermal and air-pollution conditions,a mechanistic model based on multi-ion transport and chemical reactions was *** model was used to predict Cu corrosion caused by Cl_(2)-containing pollutant *** also accounted for the effects of temperature(25℃and 28℃),relative humidity(50%,75%,and 95%),and *** also identified higher air temperature as a corrosion barrier and higher relative humidity as a corrosion accelerator,which agreed well with the experimental *** average root mean square error of the prediction was 13.7Å.The model can be used to evaluate the thermal guideline for data centers design and operation when Cl_(2)is present based on pre-established acceptable risk of corrosion in data centers’environment.

关键词： chloride pollutant mixture copper corrosion model data center temperature relative humidity synergistic effect

妊娠期肺栓塞：17年单中心MDCT肺血管成像回顾性研究

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国际医学放射学杂志 2020年第3期 372-372页

作者： D.C.Rotzinger *** V.Ilic O.W.Hugli R.A.Meuli s.schmidt 张国栋 Department of Diagnostic and Interventional Radiology Emergency Radiology Division Lausanne University Hospital (CHUV)

摘要目的探讨孕妇肺栓塞(PE)患病率及进行肺动脉CT血管成像(CTPA)后发现其他诊断的出现率,并评估辐射剂量、检查质量和检查频率随时间的变化。材料与方法该回

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儿童感染COVID-19后肺功能障碍

国际医学放射学杂志 2023年第3期 355-355页

作者： R.Heiss L.Tan s.schmidt A.P.Regensburger F.Ewert D.Mammadova 李凯程

摘要 “长新冠”在儿童和青少年中的发生率低于成人。低场强MRI形态学和自由呼吸相位分辨肺功能成像（PREFUL）可帮助识别新型冠状病毒（sARs-CoV-2）感染后的持

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Dysferlin缺陷性肌营养不良症:gadofluorine M在小鼠模型MRI的适合性

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国际医学放射学杂志 2009年第2期32卷 176-176页

作者： s.schmidt A.Vieweger M.Obst s.Mueller V.Gross M.Gutberlet 陈聪 Muscle Research Unit Experimental and Clinical Research CenterCharité University Medicine Berlin

目的比较gadofluorine M和Gadomer在7．0T MRI上评估Dysferlin缺陷性肌营养不良症的有效性。方法实验经当地审查委员会批准通过。患Dysferlin缺陷性肌营养不良症的sJL／J小鼠（n=24）和对照组C57BL／6小鼠（n=24）在12～15周（青年... 详细信息

目的比较gadofluorine M和Gadomer在7．0T MRI上评估Dysferlin缺陷性肌营养不良症的有效性。方法实验经当地审查委员会批准通过。患Dysferlin缺陷性肌营养不良症的sJL／J小鼠（n=24）和对照组C57BL／6小鼠（n=24）在12～15周（青年）或30周（老年）静脉注射动态增强对比剂gadofluorine M 2 μmol或Gadomer 4 μmol，在静注前、中、后行MRI预反转自由稳态进动序列成像。

关键词：肌营养不良症小鼠模型 MRI 缺陷适合性 C57BL/6小鼠动态增强静脉注射

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search for two-neutrino double-beta decay of^(136)Xe to the 0^(+)_(1)excited state of 136Ba with the complete EXO-200 dataset

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Chinese Physics C 2023年第10期47卷 1-9页

作者： s.Al Kharusi G.Anton I.Badhrees P.s.Barbeau D.Beck V.Belov T.Bhatta M.Breidenbach T.Brunner G.F.Cao W.R.Cen C.Chambers B.Cleveland M.Coon A.Craycraft T.Daniels L.Darroch s.J.Daugherty J.Davis s.Delaquis A.Der Mesrobian-Kabakian R.DeVoe J.Dilling A.Dolgolenko M.J.Dolinski J.Echevers W.Fairbank Jr. D.Fairbank J.Farine s.Feyzbakhsh P.Fierlinger Y.s.Fu D.Fudenberg P.Gautam R.Gornea G.Gratta C.Hall E.V.Hansen J.Hoessl P.Hufschmidt M.Hughes A.Iverson A.Jamil C.Jessiman M.J.Jewell A.Johnson A.Karelin L.J.Kaufman T.Koffas R.Krücken A.Kuchenkov K.s.Kumar Y.Lan A.Larson B.G.Lenardo D.s.Leonard G.s.Li s.Li Z.Li C.Licciardi Y.H.Lin R.MacLellan T.McElroy T.Michel B.Mong D.C.Moore K.Murray O.Njoya O.Nusair A.Odian I.Ostrovskiy A.Perna A.Piepke A.Pocar F.Retière A.L.Robinson P.C.Rowson J.Runge s.schmidt D.sinclair K.skarpaas A.K.soma V.stekhanov M.Tarka s.Thibado J.Todd T.Tolba T.I.Totev R.Tsang B.Veenstra V.Veeraraghavan P.Vogel J.-L.Vuilleumier M.Wagenpfeil J.Watkins M.Weber L.J.Wen U.Wichoski G.Wrede s.X.Wu Q.Xia D.R.Yahne L.Yang Y.-R.Yen O.Ya.Zeldovich T.Ziegler 无 Physics Department McGill UniversityMontrealQuebec H3A 2T8Canada Erlangen Centre for Astroparticle Physics(ECAP) Friedrich-Alexander-University Erlangen-NürnbergErlangen 91058Germany Physics Department Carleton UniversityOttawaOntario K1S 5B6Canada Department of Physics Duke Universityand Triangle Universities Nuclear Laboratory(TUNL)DurhamNorth Carolina 27708USA Physics Department University of IllinoisUrbana-ChampaignIllinois 61801USA Institute for Theoretical and Experimental Physics named by A.I.Alikhanov of National Research Centre“Kurchatov Institute” Moscow 117218Russia Department of Physics University of South DakotaVermillionSouth Dakota 57069USA sLAC National Accelerator Laboratory Menlo ParkCalifornia 94025USA TRIUMF VancouverBritish Columbia V6T 2A3Canada Institute of High Energy Physics Beijing 100049China Department of Physics Laurentian UniversitySudburyOntario P3E 2C6Canada Physics Department Colorado State UniversityFort CollinsColorado 80523USA Department of Physics and Physical Oceanography University of North Carolina at WilmingtonWilmingtonNC 28403USA Physics Department and CEEM Indiana UniversityBloomingtonIndiana 47405USA Physics Department Stanford UniversityStanfordCalifornia 94305USA Department of Physics Drexel UniversityPhiladelphiaPennsylvania 19104USA Amherst Center for Fundamental Interactions and Physics Department University of MassachusettsAmherstMA 01003USA Technische Universität München Physikdepartment and Excellence Cluster UniverseGarching 80805Germany Physics Department University of MarylandCollege ParkMaryland 20742USA Department of Physics and Astronomy University of AlabamaTuscaloosaAlabama 35487USA Wright Laboratory Department of PhysicsYale UniversityNew HavenConnecticut 06511USA IBs Center for Underground Physics Daejeon 34126Korea Department of Physics and Astronomy Stony Brook UniversitySUNYStony BrookNew York 11794USA Kellogg Lab CaltechPasadenaCalifornia 91125USA LHEP Albert Einstein CenterUniversi

A new search for two-neutrino double-beta(2νββ)decay of^(136)Xe to the 0+1 excited state of 136Ba is performed with the full EXO-200 dataset.A deep learning-based convolutional neural network is used to discriminate signal from background *** detection efficiency is increased relative to previous searches by EXO-200 by more than a factor of *** the addition of the Phase II dataset taken with an upgraded detector,the median 90%confidence level half-life sensitivity of 2νββdecay to the 0+1 state of 136Ba is 2.9×10^(24)yr using a total^(136)Xe exposure of 234.1 kg *** statistically significant evidence for 2νββdecay to the 0^(+)_(1)state is observed,leading to a lower limit of T2ν1/2(0^(+)→0^(+)_(1))>1.4×10^(24)yr at 90%confidence level,improved by 70%relative to the current world's best constraint.

关键词： EXO-200 experiment neutrinoless double beta decay excited state

Effect of Eu3+,Bi3+,and Li+ doping on luminescent property of GdNbO4

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Journal of Rare Earths 2024年第1期42卷 66-75页

作者： s.W.Wi Y.s.Lee Department of Physics and Integrative Institute of Basic sciences Soongsil University

We investigated the emission properties of Eu3+-doped GdNbO4-based oxide phosphors,aiming at improving the Eu3+emission by codoping of Bi3+and Li+.Eu3+singly doped,Eu3+and Bi3+doubly doped,and Eu3+,Bi3+,and Li+triply doped GdNbO4were prepared using a high-temperature solid-state reaction *** red-orange emissions from Eu3+in the singly doped samples are significantly improved by the codoping of Bi3+,mainly due to the energy transfer from Bi3+to Eu3+.The additional codoping of Li+is found to increase the Eu3+emission *** improvement might be attributed to the increase in the photoluminescent quantum yield originating from larger grain sizes and better crystallinity.A detailed analysis of the X-ray diffraction pattern and the asymmetric ratio estimated from the photoluminescence spectra show that the local lattice environment around Eu3+in GdNbO4does not change significantly with the codoping of Bi3+and Li+.Our results indicate that Li+doping is a promising way to improve the emission properties of rare-earth ion-doped GdNbO4phosphors.

关键词： Eu 3+ GdNbO 4 Codoping of Li + Photoluminescence sensitizer Rare earths

First evidence for chiral wobbling of triaxial nuclei

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Nuclear science and Techniques 2024年第7期35卷 4-7页

作者： s.Frauendorf Department of Physics and Astronomy University of Notre DameNotre DameIN 46556USA

Chirality(Greek“handiness”)is a property of many com-plex *** molecules exist in two forms,one being the mirror image of the *** for our hands,it is impossible to make the images identical by a suitable *** two forms are called left-handed and *** have the same binding energy,because the electro-magnetic interaction,which holds the molecule together,does not change under a *** properties that are insensitive to the geometry are also the *** different geometry is the reason why the left-handed form turns the polarization plane of transmitted light in one direction by some angle while the right-handed form turns it in the oppo-site direction by the same ***,the geometrical differences between the two species may have other *** two species of the carvon molecule shown in Fig.1 taste quite differently.

关键词： turns Chiral mirror

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