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Three New spiral Galaxies with Active Nuclei Producing Double Radio lobes

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Research in Astronomy and Astrophysics 2023年第3期23卷 46-53页

作者： X.Y.Gao Z.s.Yuan J.l.Han Z.l.wen s.s.shan National Astronomical Observatories Chinese Academy of SciencesBejing 10011China CAs Key laboratory of FAsT National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China school of Astronomy University of Chinese Academy of SciencesBeijing 100049China

Double radio lobes are generally believed to be produced by active nuclei of elliptical ***,several double-lobed radio sources have been solidly found to be associated with spiral *** cross-matching~9×105 spiral galaxies selected from the sloan Digital.s.y survey DR8 data with the full 1.4 GHz radio source catalogs of NRAO VlA sky survey and Faint Images of the Radio sky at Twenty-centimeters,we identify three new spiral galaxies:J0326-0623,J1110+0321 and J1134+3046 that produce double radio lobes,and five doublelobed spirals previously *** combining the newly discovered and all the other known cases in literature,we confirm the relation that more massive spiral galaxies could produce more powerful radio *** find that most of these spiral galaxies are located in a galaxy group or a poor cl.s.er,in which the environment is denser than in the field,and about half of them are the central brightest galaxies in their parent *** therefore suggest that the environment is one of the key factors for a spiral to produce double radio lobes.

关键词： galaxies galaxy massive

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鼓泡塔中驻波声场调制大气泡的直接模拟

应用基础与工程科学学报 2007年第2期15卷 217-225页

作者：李彦鹏 Fan l.s. 长安大学环境科学与工程学院陕西西安710064 俄亥俄州立大学化学与分子生物工程系

采用直接数值模拟的方法,同时计算了鼓泡塔中高频驻波的生成、传播和一个直径5.55mm的大气泡与该驻波相互影响的行为.气液主流场采用考虑表面张力的粘性可压缩流体动力学基本方程和气液两相的状态方程来描述,可压缩气泡的界面行为由leve... 详细信息

采用直接数值模拟的方法,同时计算了鼓泡塔中高频驻波的生成、传播和一个直径5.55mm的大气泡与该驻波相互影响的行为.气液主流场采用考虑表面张力的粘性可压缩流体动力学基本方程和气液两相的状态方程来描述,可压缩气泡的界面行为由levelset方法耦合界面作用模型来处理,驻波声场通过与时间相关的传感器速度入口边界条件形成.模拟结果显示,反应器中形成了一个稳定的驻波声场;由于气泡的存在,均匀的压力场变成了轴对称分布的压力场;气泡容积以很小的振幅周期性收缩与膨胀.模拟结果还揭示了对于在驻波声场中的大尺寸气泡,Bjerknes力与浮力之比为20%—25%,与实验结果21%基本相符.

关键词：驻波声场气泡 Bjerknes力可压缩气液两相流

新质生产力推动城乡融合发展的作用机理与实现路径

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中国流通经济 2025年第1期39卷 39-49页

作者：文丰安重庆大学马克思主义学院重庆市400030

城乡融合发展是中国式现代化的必然要求,是提升中国经济协调性、促进国内大循环、实现高质量发展的重要手段。发展新质生产力是推动高质量发展的内在要求和重要着力点,新质生产力以科技创新为驱动,是推动城乡融合发展的关键选择。目前,... 详细信息

城乡融合发展是中国式现代化的必然要求,是提升中国经济协调性、促进国内大循环、实现高质量发展的重要手段。发展新质生产力是推动高质量发展的内在要求和重要着力点,新质生产力以科技创新为驱动,是推动城乡融合发展的关键选择。目前,我国城乡融合发展仍面临相关机制不健全、要素流动阻碍多、融合发展动力不足、公共资源供给不均衡、居民收入差距较大、乡村产业融合发展相对缓慢等困难。新质生产力作为推动城乡区域发展的重要引擎、加快城乡要素流通的动力支撑、驱动产业转型升级的核心动能,为推动城乡融合发展提供了新的契机。第一,进一步深化户籍制度、土地制度、金融制度等关键领域的改革,打破制约城乡融合发展的体制性障碍,构建科学合理、协调统一的城乡规划引领机制,建立健全城乡统一的市场体系,完善城乡发展机制。第二,推动新型人才流动,加强技术传播,促进信息共享,提高新型劳动者、新型劳动资料在城乡之间的流动效率,减少城乡要素流动障碍,促进城乡要素自由流动,优化生产要素配置。第三,加强城乡基础设施智能化建设,促进城乡公共服务均等化,推动多元化供给和数字化服务。第四,创新产业发展模式,驱动城乡产业无缝对接,协同发展。

关键词：城乡融合发展新质生产力乡村全面振兴高质量发展

Anti-amyloid antibodies in Alzheimer’s disease: what did clinical trials teach us?

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Neural Regeneration Research 2025年第4期20卷 1092-1093页

作者： Danko Jeremic lydia Jiménez-Díaz Juan D.Navarro-lópez NeuroPhysiology&Behavior lab University of Castilla-La ManchaBiomedical Research Center(CRIB)School of Medicine of Ciudad RealCiudad RealSpain

Although many causes of Alzheimer’s disease(AD)may exist,both the original amyloid cascade and tau hypotheses posit that abnormal misfolding and accumulation of amyloid-β(Aβ)and tau protein is the central event causing the ***,that concl.s.on could be only partly true,and there is conflicting evidence about the role of both proteins in AD,being able to precede and influence one *** researchers argue that these proteins are mere executors rather than primary causes of ***,there have been continuing refinements of both hypotheses,with alternative explanations proposed.Aβand tau proteins may be independently involved in specific neurotoxic pathways;yet there may be other crucial processes going on in early ***,accumulating evidence suggests that Aβand tau act synergistically,rather than additively in disease onset(Jeremic et al.,2021,2023a).

关键词： amyloid Alzheimer additive

Four late-type Galaxies with Double Radio lobes and Properties of such Galaxies

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Research in Astronomy and Astrophysics 2024年第4期24卷 84-90页

作者： Z.s.Yuan X.Y.Gao Z.l.wen J.l.Han National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China CAs Key laboratory of FAsT National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China school of Astronomy and space sciences University of Chinese Academy of SciencesBeijing 100049China

The triggering mechanism for radio lobes from late-type galaxies is not fully *** sampl.s.are desired for a thorough investigation and *** utilizing the optical data from the newly released Dark Energy spectroscopic Instrument imaging surveys and the radio sources from the NRAO VlA sky survey and the Faint Images of the Radio sky at Twenty-centimeter,we identify four late-type Galaxies with double Radio lobes(la GRls):J0217-3645,J0947+6220,J1412+3723 and J1736+*** previously known la GRls,we confirm the correlation between radio power P_(1.4GHz)and stellar mass M_(*)of host ***(25/35)la GRls belong to the blue cloud galaxies,while the newly identified cases in this work are located within the region of the red *** find a clear correlation between the differential radio power,i.e.,the offset from the P_(1.4GHz)-M_(*)relation,and the galaxy color,indicating that bluer galaxies at a fixed M_(*)tend to host more powerful radio ***,the majority(31/36)of la GRls are either located in a galaxy group or displaying a disturbed *** suggest that all of the galaxy mass,color and surrounding environment could play important rol.s.in triggering radio lobes in late-type galaxies.

关键词： galaxies:active galaxies:jets galaxies:spiral radio continuum:galaxies

semantic segmentation of lumbar Vertebrae Using Meijering U-Net(MU-Net)on spine Magnetic Resonance Images

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Computer Modeling in Engineering & sciences 2025年第1期142卷 733-757页

作者： lakshmi s V V shiloah Elizabeth Darmanayagam sunil Retmin Raj Cyril Department of Computer science and Engineering College of Engineering GuindyAnna UniversityChennai600025India Department of Information Technology Madras Institute of TechnologyAnna UniversityChrompetChennai600044India

lower back pain is one of the most common medical problems in the world and it is experienced by a huge percentage of people *** to its ability to produce a detailed view of the soft tissues,including the spinal cord,nerves,intervertebral discs,and vertebrae,Magnetic Resonance Imaging is thought to be the most effective method for imaging the *** semantic segmentation of vertebrae plays a major role in the diagnostic process of lumbar *** is difficult to semantically partition the vertebrae in Magnetic Resonance Images from the surrounding variety of tissues,including muscl.s.ligaments,and intervertebral discs.U-Net is a powerful deep-learning architecture to handle the challenges of medical image anal.s.s tasks and achieves high segmentation *** work proposes a modified U-Net architecture namely MU-Net,consisting of the Meijering convolutional layer that incorporates the Meijering filter to perform the semantic segmentation of lumbar vertebrae l1 to l5 and sacral vertebra ***-colour mask images were generated and used as ground truth for training the *** work has been carried out on 1312 images expanded from T1-weighted mid-sagittal MRI images of 515 patients in the lumbar spine MRI Dataset publicly available from Mendeley *** proposed MU-Net model for the semantic segmentation of the lumbar vertebrae gives better performance with 98.79%of pixel accuracy(PA),98.66%of dice similarity coefficient(DsC),97.36%of Jaccard coefficient,and 92.55%mean Intersection over Union(mean IoU)metrics using the mentioned dataset.

关键词： Computer aided diagnosis(CAD) magnetic resonance imaging(MRI) semantic segmentation lumbar vertebrae deep learning U-Net model

The Testing Intelligence system Based on Factor Models and self-Organizing Feature Maps

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Journal of Mathematics and system science 2013年第7期3卷 353-358页

作者： A.s. Panfilova l.s. Kuravsky Department of lnformation Technology Moscow State University of Psychology and Education Moscow 127051 RussianFederation

Presented is a new testing system based on using the factor models and self-organizing feature maps as well as the method of filtering undesirable environment influence. Testing process is described by the factor model with simplex structure, which represents the influences of genetics and environmental factors on the observed parameters - the answers to the questions of the test subjects in one case and for the time, which is spent on responding to each test question to another. The Monte Carlo method is applied to get sufficient sampl.s.for training self-organizing feature maps, which are used to estimate model goodness-of-fit measures and, consequently, ability level. A prototype of the system is implemented using the Raven＇s Progressive Matrices （Advanced Progressive Matrices） - an intelligence test of abstract reasoning. Elimination of environment influence resul.s.is performed by comparing the observed and predicted answers to the test tasks using the Kalman filter, which is adapted to solve the problem. The testing procedure is optimized by reducing the number of tasks using the distribution of measures to belong to different ability levels after performing each test task provided the required level of concl.s.on reliability is obtained.

关键词： self-organizing feature maps intelligence testing Kalman filter

Assembly and Electrochemical.s.udy of Transition Metal.s.bstituted Polyoxometalates siW_(11)NiO_(39)^(6-) and siW_(11)MnO_(39)^(6-) on 4-Aminothio-phenol Modified Gl.s.y Carbon Electrode

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Chemical Research in Chinese Universities 2005年第4期21卷 401-405页

作者： lüGui-qin DUJin-yan HUChang-wen InstituteforChemicalPhysics DepartmentofChemistryBeijingInstituteofTechnologyBeijing100081P.R.China InstituteforChemicalPhysics DepartmentofChemistryBeijingInstituteofTechnologyBeijing100081P.R.China／／ChemistryDepartmentAnhuiNormalUniversityWuhu241000P.R.China

Via layer-by-layer assembly, the polyoxometalates of Keggin type, siW_ 11O_ 39Ni(H_2O) 6-(siNiW_ 11) and {siW_ 11O_ 39Mn(H_2O) 6-}(siMnW_ 11) were first immobilized on a 4-aminothiophenol(4-ATP) modified gl.s.y carbon electrode surface. The electrochemical behavior of these polyoxometalates was investigated. They exhibited some special properties in the fil.s. which are different from those in a homogeneous aqueous solution. Their reaction mechanism in a multilayer film is proposed. The electrocatalytic behavior of these multilayer film electrodes for the reduction of BrO-_3 and NO-_2 were comparatively studied.

关键词： Polyoxometalate layer-by-layer assembly Electrochemical behavior Electrocatalytic reduction BrO_3^- NO_2^-

Complex Cyber-Physical Networks： From Cybersecurity to security Control

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Journal of systems science & Complexity 2017年第1期30卷 46-67页

作者： wen Guanghui YU wenwu YU Xinghuo lü Jinhu Department of Mathematics Southeast University Nanjing 210096 China. school of Engineering RMIT University Melbourne VIC 3001 Australia Institute of systems science Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190 China

Complex cyber-physical network refers to a new generatio~ of complex networks whose normal functioning significantly relies on tight interactions between its physical and cyber compo- nents. Many modern critical infrastructures can be appropriately modelled as complex cyber-physical networks. Typical exampl.s.of such infrastructures are electrical power grids, WWW, public trans- portation systems, state financial networks, and the Interact. These critical facilities play important rol.s.in ensuring the stability of society as well as the development of economy. Advances in informa- tion and communication technology open opportunities for malicious attackers to launch coordinated attacks on cyber-physical critical facilities in networked infrastructures from any Interact-accessible place. Cybersecurity of complex cyber-physical networks has emerged as a hot topic within this con- text. In practice, it is also very crucial to understand the interplay between the evolution of underlying network structures and the collective dynamics on these complex networks and consequently to design efficient security control.s.rategies to protect the evolution of these networks. In this paper, cybersecu- rity of complex cyber-physical networks is first outlined and then some security enhancing techniques, with particular emphasis on safety communications, attack detection and fault-tolerant control, are suggested. Furthermore, a new cl.s. of efficient secure the achievement of desirable pinning synchronization control.s.rategies are proposed for guaranteeing behaviors in complex cyber-physical networks against malicious attacks on nodes. The authors hope that this paper motivates to design enhanced security strategies for complex cyber-physical network systems, to realize resilient and secure critical infrastructures.

关键词： Communication topology complex cyber-physical network cybersecurity Internet ofThings secure control.