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Recent results from the KeDR detector

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Chinese Physics C 2010年第6期34卷 650-655页

作者： V.V.Anashin V.M.Aulchenko e.M.baldin A.K.barladyan A.Yu.barnyakov M.Yu.barnyakov S.e.baru I.V.bedny O.L.beloborodova A.e.blinov V.e.blinov A.V.bobrov V.S.bobrovnikov A.V.bogomyagkov A.e.bondar A.R.buzykaev S.I.eidelman Yu.M.Glukhovchenko V.V.Gulevich D.V.Gusev S.e.Karnaev S.V.Karpov T.A.Kharlamova V.A.Kiselev S.A.Kononov K.Yu.Kotov e.A.Kravchenko V.F.Kulikov G.Ya.Kurkin e.A.Kuper e.b.levichev D.A.Maksimov V.M.Malyshev A.L.Maslennikov A.S.Medvedko O.I.Meshkov S.I.Mishnev I.I.Morozov N.Yu.Muchnoi V.V.Neufeld S.A.Nikitin I.b.Nikolaev I.N.Okunev A.P.Onuchin S.b.Oreshkin I.O.Orlov A.A.Osipov S.V.Peleganchuk S.G.Pivovarov P.A.Piminov V.V.Petrov A.O.Poluektov I.N.Popkov V.G.Prisekin A.A.Ruban V.K.Sandyrev G.A.Savinov A.G.Shamov D.N.Shatilov b.A.Shwartz e.A.Simonov S.V.Sinyatkin Yu.I.Skovpen A.N.Skrinsky V.V.Smaluk A.V.Sokolov A.M.Sukharev e.V.Starostina A.A.Talyshev V.A.Tayursky V.I.Telnov Yu.A.Tikhonov K.Yu.Todyshev G.M.Tumaikin Yu.V.Usov A.I.Vorobiov A.N.Yushkov V.N.Zhilich V.V.Zhulanov A.N.Zhuravlev budker Institute of Nuclear Physics Novosibirsk State University Novosibirsk State Technical University 20Karl Marx prospectNovosibirsk630092Russia

We report results of experiments performed with the KeDR detector at the VePP-4M e^＋e^- collider. They include precise measurement of the D^0 and D^± meson masses, determination of the ψ（3770） resonance parameter... 详细信息

关键词： D meson ψ(3770) mass narrow resonances

Plant-substrate biochar properties critical for mediating reductive debromination of 1,2-dibromoethane

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Journal of environmental Sciences 2025年第1期147卷 1-10页

作者： Jonathan H.Lindhardt Peter e.Holm Yong-Guan Zhu Changyong Lu Hans Christian b.Hansen Department of Plant and environmental Sciences Faculty of ScienceUniversity of CopenhagenThorvaldsensvej 401871 Frederiksberg CDenmark Key lab of Urban environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Sino-Danish Center for education and research China and DenmarkDalgas Avenue 4DK-8000 Aarhus C.Denmark

Dibromoethane is a widespread,persistent organic *** are known mediators of reductive dehalogenation by layered Fe^(Ⅱ)-Fe^(Ⅲ)hydroxides(green rust),which can reduce 1,2-dibromoethane to innocuous bromide and ***,the critical characteristics that determine mediator functionality are lesser *** biochar substrates were pyrolyzed at 600℃and 800℃,characterized by elemental analysis,X-ray photo spectrometry C and N surface speciation,X-ray powder diffraction,specific surface area analysis,and tested for mediation of reductive debromination of 1,2-dibromoethane by a green rust reductant under anoxic conditions.A statistical analysis was performed to determine the biochar properties,critical for debromination kinetics and total debromination *** was shown that selected plant based biochars can mediate debromination of 1,2-dibromoethane,that the highest first order rate constant was 0.082/hr,and the highest debromination extent was 27%in reactivity experiments with 0.1μmol(20μmol/L)1,2-dibromoethane,≈22 mmol/L Fe^(Ⅱ)GR,and 0.12 g/L soybean meal biochar(7 days).Contents of Ni,Zn,N,and P,and the relative contribution of quinone surface functional groups were significantly(pely correlated with 1,2-dibromoethane debromination,while adsorption,specific surface area,and the relative contribution of pyridinic N oxide surface groups were significantly negatively correlated with debromination.

关键词： environmental remediation biochar Persistent organic pollutants(POPs) environmental catalysis Green rust

Neuroinflammation revisited through the microglial lens

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Neural Regeneration Research 2025年第7期20卷 1989-1990页

作者： Renato Socodato João b.Relvas Institute of Research and Innovation in Health(i3S)and Institute for Molecular and Cell biology(IbMC) University of PortoPortoPortugal Department of biomedicine Faculty of Medicine of the University of Porto(FMUP)PortoPortugal

Neuroimmunology is emerging as a pivotal field,shedding light on the intricate dialogues between the central nervous system(CNS)and the immune *** exploration is particularly significant in understanding microglia,the CNS’s innate immune cells,beyond the conventional conflation of“neuroinflammation”and“microglial activation.”This conflation has clouded the true complexity of these processes,potentially stalling scientific progress and the development of new *** challenge the long-standing perspectives that have oversimplified these interactions,advocating for a deeper exploration of the dynamic relationship between neuroinflammation and microglial *** dissecting specific molecular pathways,we aim to illuminate their elaborate roles in neuroinflammatory responses,especially in the context of Alzheimer’s disease(AD).Here,neuroinflammation is not merely a passive observer or a direct antagonist but a complex agent in the disease’s *** article calls for a significant paradigm shift towards an integrative,multi-omics approach to *** such a comprehensive framework is crucial for advancing our understanding of neuroinflammatory conditions and paving the way for targeted therapeutic strategies for brain diseases.

关键词： inflammation simplified activation

可降解秸秆基地膜增韧改性及其对水稻生长的影响

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林产化学与工业 2025年第1期45卷 63-71页

作者：孙恩惠陈玲范肖东彭鵾 GUeGUIM KANA e b 翟胜丞江苏省农业科学院农业资源与环境研究所农业农村部盐碱土改良与利用(滨海盐碱地)重点实验室江苏省有机固体废弃物资源化协同创新中心江苏南京210014 江苏大学农业工程学院江苏镇江212013 夸祖鲁-纳塔尔大学农业工程与科学学院斯科茨维尔3209 南京林业大学材料科学与工程学院江苏南京210037

以秸秆纤维为原料,经氯化胆碱/尿素-微生物联合预处理之后,依次通过填充不同添加量的杨木纤维、调控湿强剂组合种类以及利用自主研发的纳米木质素聚合物作表面涂层,制备改性秸秆纤维基地膜(MSFM),分析改性处理对可降解秸秆纤维基地膜力... 详细信息

以秸秆纤维为原料,经氯化胆碱/尿素-微生物联合预处理之后,依次通过填充不同添加量的杨木纤维、调控湿强剂组合种类以及利用自主研发的纳米木质素聚合物作表面涂层,制备改性秸秆纤维基地膜(MSFM),分析改性处理对可降解秸秆纤维基地膜力学性能、韧性、疏水性、降解性及水稻生长等的影响。研究结果表明:杨木纤维的填充可有效降低细小秸秆纤维流失率;优选杨木纤维与秸秆纤维质量比为4∶6,湿强剂硫酸铝(AS)添加量1.5%、阳离子分散松香胶(CDR)1.5%,纳米木质素聚合物表层涂布量2~2.5 g/m^(2)时,获得的改性秸秆纤维基地膜(MSFM)抗张指数为30.33 N·m/g、湿抗张指数9.23 N·m/g、撕裂指数5.16 mN·m^(2)/g、耐破指数2.36 kPa·m^(2)/g,应变由0.48%提高到1.13%,增幅达135.42%,且表现出优异的疏水性和湿稳定性。地膜降解试验结果表明:第9周时MSFM失重率达62%,同时盆栽试验期杂草抑制率达81.20%,且具有良好的土壤保温及水稻促生作用。生物可降解秸秆纤维地膜能够从源头减少污染物和化石资源投入,在农田土壤覆盖应用领域前景广阔。

关键词：秸秆纤维可降解地膜增韧改性力学性能杂草防控增温促生

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A simple method for automatic recreation of railway horizontal alignments

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Railway engineering Science 2025年第1期33卷 62-78页

作者： Alberte Castro Gerardo Casal Duarte Santamarina Miguel e.Vázquez‑Méndez Transportation and Infrastructure engineering Universidade de Santiago de CompostelaEPSERúa Benigno Ledo27002 LugoSpain Department of Applied Mathematics Universidade de Santiago de CompostelaEPSERúa Benigno Ledo27002 LugoSpain CITMAga Rúa de Constantino Candeira15782 Santiago de CompostelaSpain

This paper deals with the problem of recreating horizontal alignments of existing railway *** main objective is to propose a simple method for automatically obtaining optimized recreated alignments located as close as possible to an existing *** on a previously defined geometric model,two different constrained optimization problems are *** first problem uses only the information provided by a set of points representing the track centerline while the second one also considers additional data about the existing *** proposed methodology consists of a two-stage process in which both problems are solved consecutively using numerical *** main results obtained applying this methodology are presented to show its performance and to prove its practical usefulness:an academic example used to compare with other methods,and a case study of a railway section located in Parga(Spain)in which the geometry of its horizontal alignment is successfully recovered.

关键词： Railway horizontal alignment Geometrical model Constrained optimization problem Numerical resolution

electronic,optical,and mechanical properties of bN,AlN,and InN with zinc-blende structure under pressure

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Chinese Physics b 2017年第8期26卷 320-327页

作者： A R Degheidy e b elkenany Department of Physics Faculty of ScienceMansoura UniversityP.O.Box 35516MansouraEgypt

In this work, the electronic, optical, and mechanical properties of bN, AlN, and InN under the action of pressure are calculated. For each of these compounds, the energy band structure, band gaps（e^L_g, e~Γ_g, e^X_g）, refractive index（n）,dielectric constants（ε_∞, ε_0）, elastic constants（C_11, C_12, C_44）, and relevant parameters such as bulk（b_u）, shear（S_h）, and Young＇s（Y_0） moduli are studied, and other important parameters such as bond-stretching（α）, bond-bending（β） force constant, internal-strain parameter（ζ）, effective charges（e~＊_T, Z~＊）, anisotropy factor（I_s）, Poisson＇s ratio（P_o）, Cauchy ratio（C_a）, the ductility index（μ_D）, and linear compressibility（C0_） are also calculated. The effects of pressure on all studied properties are investigated. Our results are in good agreement with the available experimental and theoretical data for bN,AlN, and InN.

关键词： electronic properties optical properties mechanical properties bN A1N InN

Analysis of convective-radiative heat transfer in dovetail longitudinal fins with shape-dependent hybrid nanofluids: a study using the Hermite wavelet method

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Applied Mathematics and Mechanics(english edition) 2025年第2期46卷 357-372页

作者： C.G.PAVITHRA b.J.GIReeSHA S.SUSHMA K.J.GOWTHAM Department of PG Studies and Research in Mathematics Kuvempu University

A distinguished category of operational fluids, known as hybrid nanofluids,occupies a prominent role among various fluid types owing to its superior heat transfer properties. by employing a dovetail fin profile, this work investigates the thermal reaction of a dynamic fin system to a hybrid nanofluid with shape-based properties, flowing uniformly at a velocity U. The analysis focuses on four distinct types of nanoparticles,i.e., Al2O3, Ag, carbon nanotube (CNT), and graphene. Specifically, two of these particles exhibit a spherical shape, one possesses a cylindrical form, and the final type adopts a platelet morphology. The investigation delves into the pairing of these *** examination employs a combined approach to assess the constructional and thermal exchange characteristics of the hybrid nanofluid. The fin design, under the specified circumstances, gives rise to the derivation of a differential equation. The given equation is then transformed into a dimensionless form. Notably, the Hermite wavelet method is introduced for the first time to address the challenge posed by a moving fin submerged in a hybrid nanofluid with shape-dependent features. To validate the credibility of this research, the results obtained in this study are systematically compared with the numerical simulations. The examination discloses that the highest heat flux is achieved when combining nanoparticles with spherical and platelet shapes.

关键词： Hermite wavelet method radiation convection dovetail fin nanoparticle configuration O351.2

Why Matter Occupies so Large a Volume?

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Communications in Theoretical Physics 2013年第12期60卷 677-686页

作者： e.b.Manoukian Institute for Fundamental Study Naresuan University

The paper represents a rigorous treatment of the underlying quantum theory, not just in words but providing the underlying technical details, as to why matter occupies so large a volume and its intimate connection with the Pauli exclusion principle, as more and more matter is put together, as well as of the contraction or shrinkage of ＂bosonic matter＂, upon collapse, for which the Panli exclusion is abolished. From the derived explicit bounds of integrals of powers of the particle number densities, explicit bounds on probabilities of the occurrences of the events just described are extracted. These probabilities lead one to infer the change of the ＂size＂ or extension of such matter, upon expansion or contraction, respectively, as their content is increased.

关键词： expansion of matter and the Pauli exclusion principle contraction or shrinkage of "bosonic mat-ter" upon collapse

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e·b·怀特随笔