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Chronic hepatitis b virus infection in Eastern Ethiopia:Clinical characteristics and determinants of cirrhosis

World Journal of Hepatology 2024年第7期16卷 995-1008页

作者： Nejib y.Ismael Semir A Usmael Nega b belay.Hailemichael Desalegn Mek.nen Asgeir Johannessen Stian MS Orlien Haramay. University College of Health and Medical SciencesHarar 252Ethiopia Ak.ilu Lemma Institute of Pathobiology Addis Ababa UniversityAddis Ababa 1000Ethiopia Regional Centre for Imported and Tropical Diseases Oslo University HospitalOslo 0450UllevålNorway Internal Medicine Gastroenterology and Hepatology UnitSaint Paul’s Hospital Millennium Medical CollegeAddis Ababa 1000Ethiopia Department of Infectious Disease Vestfold Hospital TrustTønsberg 3103Norway Institute of Clinical Medicine Oslo UniversityOslo 0318Norway Department of PediatricsOslo UniversityOslo 0450UllevålNorway

bACk.ROUND Chronic hepatitis b(CHb)virus infection is a major cause of liver-associated morbidity.and mortality.particularly.in low-income countries.A better understanding of the epidemiological,clinical,and virological characteristics of CHb will guide appropriate treatment strategies and improve the control and management of CHb in *** To investigate the characteristics of CHb in Eastern Ethiopia and assess the efficacy.and safety.of antiviral *** This cohort study.included 193 adults who were human immunodeficiency.virus-negative with CHb between June 2016 and December *** assessments included chemistry.serologic,and viral mark.rs.χ^(2) tests,Mann-Whitney.U tests,and logistic regression analy.es were used to identify.the determinants of *** disoproxil fumarate(TDF)was initiated using treatment criteria from the Ethiopian CHb pilot *** A total of 132 patients(68.4%)were men,with a median age of 30 y.ars[interquartile range(IQR):24-38].At enrollment,60(31.1%)patients had cirrhosis,of whom 35(58.3%)had decompensated *** use,hepatitis b envelope antigen positivity.and a high viral load were independently.associated with ***,66 patients(33.4%)fulfilled the treatment criteria and 59(30.6%)started *** 29 patients who completed 24 months of treatment,the median aspartate aminotransferase to platelet ratio index declined from 1.54(IQR:0.66-2.91)to 1.10(IQR:0.75-2.53)(P=0.002),and viral suppression was achieved in 80.9%and 100%of patients after 12 months and 24 months of treatment,*** the treated patients,12(20.3%)died within the first 6 months of treatment,of whom 8 had decompensated *** This study.highlights the high prevalence of cirrhosis,initial mortality.and the efficacy.of TDF *** up measures to prevent and control CHb infections in Ethiopia is crucial.

关键词： Chronic hepatitis b Cirrhosis Cohort study Resource-limited settings Sub-Saharan Africa

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On power series statistical convergence and new uniform integrability.of double sequences

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Applied Mathematics(A Journal of Chinese Universities) 2024年第3期39卷 519-532页

作者： Sevda y.ld■z k.mil Demirci Sinop University Department of MathematicsSinopTurkey

In the present paper,we mostly.focus on P_(p)^(2)-statistical *** will look.into the uniform integrability.via the power series method and its characterizations for double ***,the notions of P_(p)^(2)-statistically.Cauchy.sequence,P_(p)^(2)-statistical boundedness and core for double sequences will be described in addition to these findings.

关键词： power series methods statistical convergence uniform integrability double sequences

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Numerical analy.is of high‑speed railway.slab track. using calibrated and validated 3D time‑domain modelling

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Railway.Engineering Science 2024年第1期32卷 36-58页

作者： A.F.Esen O.Laghrouche P.k.Woodward D.Medina‑Pineda Q.Corbisez J.y.Shih D.P.Connolly Institute for High‑Speed Rail and Sy.tem Integration University of LeedsLeeds LS29JTUK Institute for Infrastructure and Environment Heriot-Watt UniversityEdinburgh EH144ASUK Alstom Transport Saint‑OuenFrance birmingham Centre for Railway.Research and Education University of BirminghamBirmingham B152TTUK

Concrete slabs are widely.used in modern railway. to increase the inherent resilient quality.of the track.,provide safe and smooth rides,and reduce the maintenance *** this paper,the elastic performance of a novel slab track.orm for high-speed railway. is investigated using three-dimensional finite element modelling in *** is then compared to the performance of a ballasted ***,slab and ballasted track.models are developed to replicate the full-scale testing of track.*** the models are calibrated with the experimental results,the novel slab model is developed and compared against the calibrated slab track.*** slab and ballasted track.models are then extended to create linear dy.amic models,considering the track.geody.amics,and simulating train passages at various speeds,for which the Ledsgard documented case was used to validate the *** travelling at low and high speeds are analy.ed to investigate the track.deflections and the wave propagation in the soil,considering the issues associated with critical *** train loading methods are discussed,and the most practical approach is retained and ***,correlations are made between the geotechnical parameters of modern high-speed rail and conventional *** is found that considering the same ground condition,the slab track.deflections are considerably.smaller than those of the ballasted track.at high speeds,while they.show similar behaviour at low speeds.

关键词： High-speed railway. Slab track New ballastless track ballasted track Critical speeds Finite element modelling Calibration of numerical models

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NUMERICAL ANALy.IS OF THE INFLUENCE OF THE TIP CLEARANCE FLOWS ON THE UNSTEADy.CAVITATING FLOWS IN A THREE- D IMENSIONAL INDUCER

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Journal of Hy.rody.amics 2009年第1期21卷 34-40页

作者： Ok.TA k. UGAJIN H. MATSUMOTO y. RIk.N Saitama 351-0198 Japan IHI Corporation Yokohama 235-8501 Japan Department of Mechanical Engineering The University of TokyoTokyo 113-8656 Japan

To clarify.the influences of the tip clearance flows on the unsteady.cavitating flow, the three-dimensional unsteady.cavitating flows through both the two-dimensional cascades and the three-dimensional inducer with and without tip clearance are performed numerically. The governing equations for the compressible fluid flow with the DES turbulence model are employ.d with the assumption of the isentropic process of liquid phase. The evolution of cavities is represented as the source/sink.of vapor phase. The basic equations in the curve linear coordinate are solved by.the finite difference method. As the results of the three-dimensional cavitating flows through the two-dimensional cascades, the tip clearance flows from the pressure side to the suction side of the blade produces the tip vortex cavitation, which affects the sheet cavitation on the leading edge of the next blade and enhances the block.ge effect near the casing than the flows without tip clearance. On the other hand, in the case of the three-dimensional inducer, the large back.low cavitation is observed around the inlet of the inducer, where the cavities are developed on the casing by.the tip clearance flows. The large pressure gradient between the non-cavitating pressure side and the cavitating suction side enhances the tip clearance flows. The calculation considering the tip clearance reproduces the developed cavitation region similar to that of experimental visualizations. Additionally. the back.low cavitation rotates with the speed slower than the rotation speed of the inducer. Then, the rotation of back.low cavitation causes the periodic fluctuation of the outlet pressure greater than that of the inlet pressure.

关键词： cavitation inducer tip clearance flow numerical analy.is

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Generation of polarized electron beams through self-injection in the interaction of a laser with a pre-polarized plasma

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High Power Laser Science and Engineering 2024年第3期12卷 62-68页

作者： L.R.y.n X.F.Li y.J.Gu N.Cao Q.k.ng M.büscher S.M.Weng M.Chen Z.M.Sheng k.y.Laboratory.of Nuclear Phy.ics and Ion-beam Application(MoE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina State k.y.Laboratory.of High Field Laser Phy.ics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina SANk.N(Institute of Scientific and Industrial Research) Osaka UniversityOsakaJapan Sichuan Research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für Laser-und Plasmaphy.ik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany k.y.Laboratory.for Laser Plasmas(MoE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghaiChina

Polarized electron beam production via laser wak.field acceleration in pre-polarized plasma is investigated by.particlein-cell *** evolution of the electron beam polarization is studied based on the Thomas±bargmann±Michel±Telegdi equation for the transverse and longitudinal self-injection,and the depolarization process is found to be influenced by.the injection *** the case of transverse self-injection,as found ty.ically.in the bubble regime,the spin precession of the accelerated electrons is mainly.influenced by.the ***,in the case of longitudinal injection in the quasi-1D regime(for example,*** et al.,***.110,135002(2013)),the direction of electron spin oscillates in the laser *** the electrons move around the laser axis,the net influence of the laser field is nearly.zero and the contribution of the wak.field can be ***,an ultra-short electron beam with polarization of 99%can be obtained using longitudinal self-injection.

关键词： laser wak.field acceleration longitudinal self-injection particle-in-cell simulation polarized electron beam

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Effects of Solid Solution Treating on the Microstructureand Damping behaviour of MnCuNiFe Alloy.

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Journal of Materials Science & Technology 1998年第4期14卷 299-307页

作者： y.n, Fuxing Ohsawa, y. Sato, A. k.wahara, k. National Research Institute for Metals Tsukuba Ibaraki 305-0047 Japan b.b.Materia Co. Ltd. Chiba-Shi Chiba 267-0066 Japan

A high damping condition is easily.obtained in Mn-(16-24) Cu-(4-6) Ni-2Fe (at. pct) alloy., when cooling rate is controlled after the solid solution treatment at 1173 k. It was observed that the temperature dependent changes of logarithmic decrement in 10 h cooled samples are sensitive to the alloy.composition. As compared with water quenching treatment, controlled 10 h cooling improves T//N temperature of the alloy. extensively.by.producing a Mn-enriched matrix portion in the alloy.. Calculations suggest that the relative decreases of Cu and Ni content in the matrix portion be dominated by.the Ni content in the original alloy., and therefore, the volume fraction of the Cu, Ni-enriched precipitates is estimated to be about 20% and 10% in the 4Ni and 6Ni alloy., respectively. As a result, the T//N temperature for each alloy. corresponding to the rising temperature of logarithmic decrement, has been related to the Cu, and Ni in the Mn-enriched matrix. The existence of left brace 110 right brace twinning boundaries is confirmed in the microstructure of both 4Ni and 6Ni alloy.. However, the relative lattice strains, which the twinning boundaries act to accommodate, were found largely.different in the two alloy.. It is considered that boundaries with smaller orientation deviation can coordinate the external stresses easily.by.cy.lic moving, and therefore, the broader damping peak.which occurs in the 10 h cooled 6Ni alloy.becomes feasible. Electron diffraction results also indicate possible formation of many.sub-cry.tals in the matrix phase, which are relatively.rotated on some invariant planes. Those sub-cry.tal boundaries might play.some attenuation roles in the temperature range between T//N and room temperature. (Edited author abstract) 9 Refs.

关键词： Manganese alloy.

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Amplitude analy.is of the decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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Chinese Phy.ics C 2024年第8期48卷 6-33页

作者： M.Ablik.m M.N.Achasov P.Adlarson O.Afedulidis X.C.Ai R.Aliberti A.Amoroso Q.An y.bai O.bak.na I.balossino y.ban H.-R.bao V.batozsk.y. k.begzsuren N.berger M.berlowsk. M.bertani D.bettoni F.bianchi E.bianco A.bortone I.boy.0} R.A.briere A.brueggemann H.Cai X.Cai A.Calcaterra G.F.Cao N.Cao S.A.Cetin J.F.Chang W.L.Chang G.R.Che G.Chelk.v C.Chen C.H.Chen Chao Chen G.Chen H.S.Chen M.L.Chen S.J.Chen S.L.Chen S.M.Chen T.Chen X.R.Chen X.T.Chen y.b.Chen y.Q.Chen Z.J.Chen Z.y.Chen S.k.Choi X.Chu G.Cibinetto F.Cossio J.J.Cui H.L.Dai J.P.Dai A.Dbey.si R.E.de boer D.Dedovich C.Q.Deng Z.y.Deng A.Denig I.Deny.enk. M.Destefanis F.De Mori b.Fang S.S.Fang W.X.Fang y.Fang y.Q.Fang R.Farinelli L.Fava F.Feldbauer G.Felici C.Q.Feng J.H.Feng y.T.Feng k.Fischer M.Fritsch C.D.Fu J.L.Fu y.W.Fu H.Gao y.N.Gao y.ng Gao S.Garbolino I.Garzia P.T.Ge Z.W.Ge C.Geng E.M.Gersabeck.b.Ding X.X.Ding y.Ding y.Ding J.Dong L.y.Dong M.y.Dong X.Dong M.C.Du S.X.Du Z.H.Duan P.Egorov y.H.Fan J.Fang JA.Gilman k.Goetzen L.Gong W.X.Gong W.Gradl S.Gramigna M.Greco M.H.Gu y.T.Gu C.y.Guan Z.L.Guan A.Q.Guo L.b.Guo M.J.Guo R.P.Guo y.P.Guo A.Gusk.v J.Gutierrez k.L.Han T.T.Han X.Q.Hao F.A.Harris k.k.He k.L.He F.H.Heinsius C.H.Heinz y.k.Heng C.Herold T.Holtmann P.C.Hong G.y.Hou X.T.Hou y.R.Hou Z.L.Hou b.y.Hu H.M.Hu J.F.Hu T.Hu y.Hu G.S.Huang k.X.Huang L.Q.Huang X.T.Huang y.P.Huang T.Hussain F.H\"olzk.n N.H\"usk.n N.in der Wiesche M.Irshad J.Jack.on S.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji X.b.Ji X.L.Ji y.y.Ji X.Q.Jia Z.k.Jia D.Jiang H.b.Jiang P.C.Jiang S.S.Jiang T.J.Jiang X.S.Jiang y.Jiang J.b.Jiao J.k.Jiao Z.Jiao S.Jin y.Jin M.Q.Jing X.M.Jing T.Johansson S.k.bana N.k.lantar-Nay.stanak. X.L.k.ng X.S.k.ng M.k.vatsy.k.b.C.k. V.k.achatry.n A.k.ouk.z R.k.uchi O.b.k.lcu b.k.pf M.k.essner X.k.i A.k.psc W.k."uhn J.J.Lane P.Larin L.Lavezzi T.T.Lei Z.H.Lei H.Leithoff M.Lellmann T.Lenz C.Li C.Li C.H.Li Cheng Li D.M.Li F.Li G.Li H.Li H.b.Li H.J.Li H.N.Li Hui Li J.R.Li J.S.Li k.Li L.J.Li L.k.Li Lei Li M.H.Li P.R.Li Q.M.Li Q.X.Li R.Li S.X.Li T.Li W.D.Li W.G.Li X.Li X.H.Li X.L.Li X.y.Li y Institute of High Energy.Phy.ics Chinese Academy of SciencesBeijing 100049China beihang University Beijing 100191China bochum Ruhr-University D-44780 BochumGermany budk.r Institute of Nuclear Phy.ics Sb RAS(bINP) Novosibirsk 630090Russia Carnegie Mellon University PittsburghPennsylvania 15213USA Central China Normal University Wuhan 430079China Central South University Changsha 410083China China Center of Advanced Science and Technology Beijing 100190China China University.of Geosciences Wuhan 430074China Chung-Ang University Seoul06974Republic of Korea COMSATS University.Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan Fudan University Shanghai 200433China GSI Helmholtzcentre for Heavy.Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China 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 INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INFN Laboratori Nazionali di Frascati INFN Sezione di PerugiaI-06100PerugiaItaly INFN Laboratori Nazionali di Frascati University of PerugiaI-06100PerugiaItaly INFN Sezione di Ferrara INFN Sezione di FerraraI-44122FerraraItaly INFN Sezione di Ferrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern Phy.ics Lanzhou 730000China Institute of Phy.ics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity.of 2.93 fb^(−1)tak.n at the center-of-mass energy.s=3.773 GeV with the bESIII detector,a joint amplitude analy.is is performed on the decay. D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decay. D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(S)are observed in both *** the obtained amplitude model,the CP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(sy.t.))%and(68.9±1.5_(stat).±2.4_(sy.t.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(sy.t.))%and(0.951±0.025_(stat.)±0.021_(sy.t.))%,*** amplitude analy.is provides an important model for the binning strategy.in measuring the strong phase parameters of D^(0)→4πwhen used to determine the Ck. angleγ(ϕ_(3))via the b^(−)→Dk.(−)decay.

关键词： bESIII D^(0)meson decay. amplitude analy.is CP-even fraction

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Solid Desiccant Dehumidification Techniques Inspired from Natural Electroosmosis Phenomena

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Journal of bionic Engineering 2011年第1期8卷 90-97页

作者： b. Li y. y. y.n Faculty.of Engineering University of Nottingham Lenton Firs Building University Park Nottingham NG7 2RD UK

Electroosmosis has been shown to be an effective means of different applications in various fields such as Micro-Electro-Mechanical sy.tems （MEMS） and biomimetics applications. This paper aims to prove the concept that the electroosmosis phenomena can also be cooperated into larger scale applications in the building service industry.lik. dehumidification or damping proof. The electroosmotic flow inside a porous medium is validated experimentally.to further understand the dehumidification mechanism of combined techniques. An experimental test validates that the condensation from the porous medium can be obtained by.electroosmotic force generated by.external electric field, especially.for specific desiccant powders lik. zeolite and diatomaceous earth. With a range of volts from 5 V to 20 V apply.ng between the testing plates, the maximum flow rate through the cross section in the testing plate achieved during the peak.period is 1.35 laL＇min 1. These promising phenomena can act as an alternative way.for energy.choice in dehumidification industrial field. Further researches on new regeneration methods for solid desiccant dehumidification are required to mak. the sy.tem simple, energy.saving and suitable for small air conditioning units.

关键词： biomimetics electroosmotic flow solid desiccant dehumidification

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Sy.chronized off-harmonic probe laser with highly.variable pulse duration for laser-plasma interaction experiments

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High Power Laser Science and Engineering 2024年第1期12卷 99-107页

作者： J.Hornung y.Zobus H.Lorenté C.brabetz b.Zielbauer V.bagnoud GSI Helmholtzzentrum für Schwerionenforschung GmbH DarmstadtGermany Institut d’Optique UniversitéParis-SaclayPalaiseauFrance Institut für Angewandte Phy.ik Technische Universität DarmstadtDarmstadtGermany

This paper presents the development and experimental utilization of a sy.chronized off-harmonic laser sy.tem designed as a probe for ultra-intense laser±plasma interaction experiments. The sy.tem exhibits a novel seed-generation design,allowing for a variable pulse duration spanning over more than three orders of magnitude, from 3.45 picoseconds to 10 nanoseconds. This mak.s it suitable for various plasma diagnostics and visualization techniques. In a side-view configuration, the laser was employ.d for interferometry.and streak.d shadowgraphy.of a laser-induced plasma while successfully.suppressing the self-emission back.round of the laser±plasma interaction, resulting in a signal-to-self-emission ratio of 110 for this setup. These properties enable the probe to y.eld valuable insights into the plasma dy.amics and interactions at the PHELIX facility.and to be deploy.d at various laser facilities due to its easy.to-implement design.

关键词： interferometry laser-plasma interaction off-harmonic probe laser streak.d shadowgraphy

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基于状态空间模型的激光再制造熔池温度控制系统

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表面工程与再制造 2024年第2期24卷 50-50页

作者： y.ng G.-Z. Liu T.-M. Song b.-X. Jiang X.-y. Wang Z.-S. Chen k.-Q. Liu W.-J. School of Mechanical Engineering Shenyang University of Technology Shenyang China

激光再制造是用于再制造的一项重要技术,在航空航天、冶金、能源等领域应用广泛。然而,形状控制问题一直是制约其规模化和工业化应用的瓶颈。在激光再制造过程中,熔池温度是决定再制造件形状和性能稳定性的关键。基于此,本文提出了一种... 详细信息

激光再制造是用于再制造的一项重要技术,在航空航天、冶金、能源等领域应用广泛。然而,形状控制问题一直是制约其规模化和工业化应用的瓶颈。在激光再制造过程中,熔池温度是决定再制造件形状和性能稳定性的关键。基于此,本文提出了一种基于状态空间模型的激光再制造熔池温度实时在线控制方法,解决了控制机理模型难以建立和多变量约束的问题。

关键词：状态空间模型激光再制造熔池温度航空航天形状控制控制系统变量约束性能稳定性

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