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CMD-3实验π介子形状因子的初步结果（英文）

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中国科学技术大学学报 2016年第4期46卷 323-330页

作者： AKHMETSHiN R.R. AMiRKHANOV A.N. ANiSENKOV A.V. AULCHENKO V.M. BANZAROV V.Sh. BASHTOVOY N.S. BERKAEV D.E. BONDAR A.E. BRAGiN A.V. FEDOTOViCH G.V. EiDELMAN S.i. EPi.a.OV D.A. EPSHTEYN L.B. EROFEEV A.L. GAYAZOV S.E. GREBENUKV A.A. GRi.a.OVV S.S. GRiGORiEV D.N. iGNATOV F.V. i.a.OV V.L. KARPOV S.V. KAZANiN V.F. KHAZiN B.i. koop i.a. KOROBOV A.A. KOVALENKO O.A. KOZYREV A.N. KOZYREV E.A. KROKOVNY P.P. KUZMENKO A.E. KUZMiN A.S. LOGASHENKO i.B. LUKiN P.A. MiKHAiLOV K.Yu. OKHAPKiN V.S. PESTOV Yu.N. POPOV A.S. RAZUVAEV G.P. RUBAN A.A. RYSKULOV N.M. RYZHENENKOV A.E. SHEBALiN V.E. SHWARTZ B.A. SHWARTZ D.B. SiBi.a.OV A.L. SHATUNOV Yu.M. SOLODOV E.P. SHEMYAKiN D.N. TiTOV V.M. TALYSHEV A.A. VOROBiOV A.i. YUDiN Yu.V. 布德克尔核物理研究所新西伯利亚州立大学新西伯利亚州立理工大学悉尼大学物理学院

自2010年12月起,坐落在正负电子对撞机VEPP-2000上的CMD-3探测器成功取数.2013年首次在对撞能量小于1GeV能区进行扫描,并获取积分亮度为18pb-1的数据.本文给出了e^+e^-→π^+π^-截面的初步结果.

关键词： π介子形状因子正负电子对撞机强子截面

VEPP-2000 e^+e^-对撞机上用CMD-3谱仪研究1004-1060 MeV能区的e^+e^-→K■过程（英文）

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中国科学技术大学学报 2016年第6期46卷 507-513页

作者： KOZYREV E.A. AMiRKHANOV A.N. ANiSENKOV A.V. M.AULCHENKO V. BANZAROV V.S. BASHTOVOY N.S. BERKAEV D.E. BONDAR A.E. BRAGiN A.V. EiDELMAN S.i. A.EPi.a.OV D. EPSHTEYN L.B. EROFEEV A.L. FEDOTOViCH G.V. GAYAZOV S.E. GREBENUK A.A. GRi.a.OV S.S. GRiGORiEV D.N. iGNATOV F.V. i.a.OV V.L. KARPOV S.V. KASAEV A.S. KAZANiN V.F. iRPOTiN A.N. KOROBOV A.A. KOVALENKO O.A. KOZYREV A.N. koop i.a. KROKOVNY P.P. KUZMENKO A.E. KUZMiN A.S. LOGASHENKO i.B. LUKiN P.A. MiKHAiLOV K.YU. OKHAPKiN V.S. OTBOEV A.V. PESTOVY U.N POPOV A.S. RAZUVAEV G.P. RUBAN A.A. RYSKULOV N.M. RYZHENENKOV A.E. SENCHENKO A.i. SHEBALiN V.E. SHEMYAKiN V.E. SHWARTZ A.S. SHWARTZ D.B. SiBi.a.OV A.L. SHATUNOV P.YU. SHATUNOVY U.M. SOLODOV E.P. TiTOV V.M. TALYSHEV A.A. VOROBiOV A.i. YUDiNY U.V. 俄罗斯布德克尔核物理研究所国立新西伯利亚大学国立新西伯利亚理工大学悉尼大学物理学院高能物理系

在质心能量1004-1060Me V之间的25个能量点测量了e^+e^-→K_S^0+K_L^0和e^+e^-→KK截面,系统误差大约为2%-3%.分析是基于VEPP-2000e^+e^-对撞机上CMD-3收集的积分亮度为5.5 pb-1的实验数据.测量的截面可近似看作Ф,ω,ρ类似的振幅及其... 详细信息

在质心能量1004-1060Me V之间的25个能量点测量了e^+e^-→K_S^0+K_L^0和e^+e^-→KK截面,系统误差大约为2%-3%.分析是基于VEPP-2000e^+e^-对撞机上CMD-3收集的积分亮度为5.5 pb-1的实验数据.测量的截面可近似看作Ф,ω,ρ类似的振幅及其激发态按照矢量介子主导模型的叠加,得到了Ф(1020)介子的共振参数.

关键词：强子正负电子对撞机介子形状因子

How to repair the Hill cipher

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第12期7卷 2022-2030页

作者： iSMAiL i.a. AMiN Mohammed DiAB Hossam Faculty of Computers and information Zagazig University Zagazig 44511 Egypt Computer Science Department Faculty of Science Menoufiya University Shebeen El-kom 32511 Egypt

The Hill cipher algorithm is one of the symmetric key algorithms that have several advantages in data encryption. However, a main drawback of this algorithm is that it encrypts identi.a. plaintext blocks to identi.a. ciphertext blocks and cannot encrypt i.a.es that contain large areas of a single color. Thus, it does not hide all features of the i.a.e which reveals patterns in the plaintext. Moreover, it can be easily broken with a known plaintext attack revealing weak security. This paper presents a variant of the Hill cipher that overcomes these di.a.vantages. The proposed technique adjusts the encryption key to form a dif- ferent key for each block encryption. Visually and computationally, experimental results demonstrate that the proposed variant yields higher security and signifi.a.tly superior encryption quality compared to the origi.a. one.

关键词： Hill cipher i.a.e encryption Modified Hill cipher Quality of encryption

VEPP-2000 e^+e^-对撞机上用CMD-3探测器测量e^+e^-→ηπ^+π^-和e^+e^-→ωπ^+π^-的截面（英文）

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中国科学技术大学学报 2016年第6期46卷 514-522页

作者： POPOV A.S. AKHMETSHiN R.R. AMiRKHANOV A.N. ANiSENKOV A.V. AULCHENKO V.M. BANZAROV V.S. BASHTOVOY N.S. BERKAEV D.E. BONDAR A.E. BRAGiN A.V. EiDELMAN D.E. EPi.a.OV D.A. EPSHTEYN L.B. EROFEEV A.L. FEDOTOViCH G.V. GAYAZOV S.E. GREBENUK A.A. GRi.a.OV S.S. GRiGORiEV D.N. GROMOV E.M. iGNATiN F.V. i.a.OV V.L. KARPOV S.V. KASAEV A.S. KORPOTiN A.N. koop i.a. KOVALENKO O.A. KAZANiN V.F. KOZYREV A.N. KOZYREV E.A. KROKOVNY P.P. KUZMENKO A.E. KUZMiN A.S. LOGASHENKO i.B. LiKiN P.A. MiKHAiLOV K.YU. OKHAPKiN V.S. OTBOEV A.V. PESTOVY U.N. PiVOVAROV S.G. RAZUVAEV G.P. ROMANOV A.L. RUBAN A.A. RYSKULOV N.M. RYZHENENKOV A.E. SHEBALiN V.E. SHEMYAKiN D.N. SHWARTZ B.A. SHWARTZ D.B. SiBi.a.LOV A.L. SHATUNOV P.YU. SHATUNOVY U.M. SOLODOV E.P. TiTOV V.M. TALYSHEV A.A. VOROBiOV A.i.. YUDiNY U.V. ZHARiNOVY U.M. 俄罗斯布德克尔核物理研究所国立新西伯利亚大学东京大学物理系国立新西伯利亚理工大学悉尼大学物理学院高能物理系

在VEPP^-2000e^+e^-对撞机上,CMD^-3探测器研究了e^+e^-→ηπ^+π^-→γγπ^+π^-,e^+e^-→ηπ^+π^-→π0π^+π^-π^+π^-以及e^+e^-→ωπ^+π^-→π0π^+π^-π^+π^-等过程.分析使用的是2011和2012年在1.2^-2.0Ge V能区收集的相应积分亮度为3×104nb^-1的数据.用η→γγ道测量了e^+e^-→ηπ^+π^-的波恩截面,结果与相关的实验结论相吻合;还用末态η→π^+π^-π0和ω→π^+π^-π0分别得到了e^+e^-→ηπ^+π^-和e^+e^-→ωπ^+π^-波恩截面的初步结果;e^+e^-→ηπ^+π^-波恩截面的数值还被用于确定τ^-→ηπ^-π0ντ的衰变分支比.

关键词：截面 ηπ+π- ωπ+π- 强子 τ

Calcareous Nannofossils and Molecular Fossils in Cobalt-rich Crusts and their Response to the P/E Global Event

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Acta Geologi.a.Sini.a.English Edition) 2013年第5期87卷 1264-1274页

作者： ZHANG Haisheng ZHAO Jun HAN Zhengbing LU Bing WU Guanghai PULYAEVA i.a. Key Laboratory of Marine Ecosystem and Biogeochemistry Second Institute of OceanographyState Oceanic Administration State Scientific Centre Yuzhmorgeologia

A biostratigraphic study on calcareous nannofossils from the CM3D06 Co-rich ferromanganese crust from the Magellan seamounts in the northwestern Pacific enabled esti.a.ion of depositional age. The bio-imprinting of calcareous nannofossils and other fossil species suggests six age ranges for the nannofossils： late Cretaceous, late Paleocene, （early, middle, late） Eocene, middle Miocene, late Pliocene, and Pleistocene. Gas chromatography （GC） and gas chromatography-mass spectrometry （GC-MS） were used to test the Co-rich crusts, and a variety of molecular fossils were detected, such as chloroform bituminous ＂A＂ , n-alkane, isoprenoid and sterol. Peak carbon and molecular indices （such as C23-/C24＋, CPi, Pr/Ph, Pr/nC17, Ph/nCxs and j13C） indi.a.e that the parent organic matter is domi.a.ed by marine phytoplankton and thallogen whereas there is little input of terrestrial organic matter. Researches on calcareous nannofossils, molecular fossils and molecular organic geochemistry data reveal that the Paleocene/Eocene （P/E） global event is recorded in the cobalt- rich crusts from the northwestern Pacific Ocean. A succession of biomes can be observed near the 85 mm boundary （about 55 Ma）, i.e., the di.a.pearance of the late Cretaceous Watznaueria barnesae and Zigodicus spi.a.is, and Broisonia parka microbiotas above the P/E boundary, and the bloom of Coccolithus formosus, Discoaster multi.a.iatus, Discoaster mohleri.a.d Discoaster sp. below the boundary. Typi.a. parameters of molecular fossils, such as saturated hydrocarbon components and carbon-number maxi.a. Pr/Ph, Pr/C17, Ph/C18, distribution types of sterols, Ts/Tm ratios and bacterial hopane, also exhibit dramatic changes near the P/E boundary. These integrated results illustrate that the biome succession of calcareous nannofossils, relative content of molecular fossils and molecular indices in the cobalt-rich crusts near the 85 mm boundary faithfully record the P/E global event.

关键词： Late Cretaceous cobalt-rich crust calcareous nannofossils molecular fossils Paleocene-Eocene boundary PETM

Structural, elastic and electronic properties for M_2 XC (M=Ti.a.d Cr, X=Ga and Al) phases from ab initio calculations

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Acta Metallurgi.a.Sini.a.English Letters) 2011年第4期24卷 255-270页

作者： B. Ghebouli M.A. Ghebouli M. Fatmi N. Bouarissa M. Benkerri i.a. ibrahim Laboratory of Study of Surfaces and interfaces of Solids Materials Department of Physics Faculty of Science University of Setif Department of Physics University Center Research Unit on Emerging Materials Ferhat Abbas University of Setif Department of Physics Faculty of Sciences King Khalid University Central Metallurgi.a. Research and Development institute P.O. Box: 87 Helwan 11424 Cairo Egypt

The first-principles study of the structural, elastic and electronic properties of the M2XC phases depending on the type of M transition metal （M are Ti.a.d Cr） and on X （X are Ga and A1） was reported. The calculations are performed using the pseudo-potential plane-wave approach in both the local density and generalized gradient approxi.a.ions. The elastic constants are calculated using the static finite strain technique. Features such as structural and elastic parameters, Debye tem- perature, sound velocities and their pressure dependence have been investi.a.ed. in agreement with experimental and previous theoreti.a. findings, it is found that the compressibility along a and c axis depends on the valence electron concentration （VEC）. Correlations revealing the governing role of the X and M elements on the machi.a.ility indices of the material have been examined. The electronic properties have been discussed in terms of chemi.a. bonding showing that bonding is due to Md-Cp and Md-Xp hybridi.a.ions. M-C bonds are stiffer than M-X ones and A1-Ti （Cr-C） bonds are stiffer than those corresponding to Ti-C （A1-Cr）. it is shown that the stiffness of the M-X and M-C bonds increases with increasing the number of VEC.

关键词： M2XC phases ab initio Pressure effect Band structures

Multisensory mechanisms of gait and balance in Parkinson’s disease:an integrative review

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Neural Regeneration Research 2025年第1期20卷 82-92页

作者： Stiven Roytman Rebecca Paalanen Giulia Carli Uros Marusic Prabesh Kanel Teus van Laar Nico i.Bohnen Department of Radiology University of MichiganAnn ArborMIUSA Department of Neurology University of MichiganAnn ArborMIUSA Morris K.Udall Center of Excellence for Parkinson’s Disease Research University of MichiganAnn ArborMIUSA institute for Kinesiology Research Science and Research Centre KoperKoperSlovenia Department of Health Sciences Alma Mater Europaea–ECMMariborSlovenia Parkinson’s Foundation Research Center of Excellence University of MichiganAnn ArborMIUSA Department of Neurology University of GroningenUniversity Medical Center GroningenGroningenThe Netherlands Neurology Service and GRECC VA Ann Arbor Healthcare SystemAnn ArborMIUSA

Understanding the neural underpinning of human gait and balance is one of the most pertinent challenges for 21st-century translational neuroscience due to the profound impact that falls and mobility disturbances have on our aging *** and gait control does not happen automati.a.ly,as previously believed,but rather requires continuous involvement of central nervous *** effectively exert control over the body,the brain must integrate multiple streams of sensory information,including visual,vestibular,and somatosensory *** mechanisms which underpin the integration of these multisensory signals are the princi.a. topic of the present *** multisensory integration theories focus on how failure of cognitive processes thought to be involved in multisensory integration leads to falls in older *** emphasis,however,has been placed on specific contributions of individual sensory modalities to multisensory integration processes and cross-modal interactions that occur between the sensory modalities in relation to gait and *** the present work,we review the contributions of somatosensory,visual,and vestibular modalities,along with their multisensory intersections to gait and balance in older adults and patients with Parkinson’s *** also review evidence of vestibular contributions to multisensory temporal binding windows,previously shown to be highly pertinent to fall risk in older ***,we relate multisensory vestibular mechanisms to potential neural substrates,both at the level of neurobiology(concerning positron emission tomography i.a.ing)and at the level of electrophysiology(concerning electroencephalography).We hope that this integrative review,drawing influence across multiple subdisciplines of neuroscience,paves the way for novel research directions and therapeutic neuromodulatory approaches,to improve the lives of older adults and patients with neurodegenerative diseases.

关键词： aging balance encephalography functional magnetic resonance i.a.ing gait multisensory integration Parkinson’s disease positron emission tomography somatosensory vestibular visual

Optimi.a.ion of Preparation Conditions of ZnO-TiO2 Nanoparticles by Sol-Gel Technique for Photodegradation indigo Carmine

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Journal of Environmental Science and Engineering 2011年第6期5卷 720-727页

作者： i.a. Mkhalid Chemistry Department Faculty of Science King Abdul Aziz University Jeddah 21589 Saudi Arabia

The results of a laboratory-scale study of an environmentally friendly water treatment method are presented, where the dyes in the industrial textile wastewater were removed by photocatalytic process. ZnO-TiO2 nanoparticles as photocatalyst has been prepared via sol-gel technique. Several factors were studied in order to find the conditions that could be used to synthesize this photocatalyst for optimum degradation of indigo Carmine dye in aqueous solutions. The optimum condition for preparation of ZnO-TiO2 mixed oxide are 1.5 TiO2/ZnO, 4 C2HsOH/TiP, 4 H20/TiP, 0.3 HNO3/TiP molar ratios, without aging, 550 ℃ calci.a.ion temperature for 5 hrs at which the surface area and the photocatalytic activity are 186.1 m^2/g and 96.1, respectively. Generally, the photocatalytic activity of the samples prepared by sol-gel technique is the highest activity. Details of the synthesis procedure and results of the characteri.a.ion studies of the produced xerogel are presented in this paper.

关键词： Sol-gel nanoparticles wastewater treatment photocatalysis indigo carmine dye

Appli.a.ion of Statisti.a. Design Strategies to Optimize the Preparation of ZnO Nanoparticles by Hydrothermal Technique

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Journal of Environmental Science and Engineering 2010年第6期4卷 67-72页

作者： i.a. Mkhalid Chemistry Department Faculty of Science King Abdul Aziz university Jeddah 80203 KSA

Synthesis of ZnO nanoparticles by hydrothermal technique in presence of cetyltrimethylammonium bromide （CTAB） as surfactant was carried out by statisti.a.ly designed experiments based on Box Behnken method. The mean parameters, surfactant concentration, time and temperature have been studied to show their effect on ZnO particle size and morphology. The results of experimental design indi.a.e that the surfactant concentration, reaction time and temperature were signifi.a.t. ZnO particles were investi.a.ed using XRD and SEM and the findings show that ZnO nanoparticles were formed at 100 ℃ and their crystallinity were improved with temperature rise from 100 to 200 ℃. Particle size of ZnO in the range of 39-76 nm is achieved using this technique.

关键词： Statisti.a. design ZnO nanoparticles surfactant hydrothermal.