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Understanding the circular polarization of fast radio bursts observed by the Five-hundred-meter Aperture Spherical Radio Telescope

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Science China(Physics,Mechanics & Astronomy) 2022年第10期65卷 155-156页

作者： Hao tong School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China

China's Five-hundred-meter Aperture Spherical Radio Telescope(FAST)is the world's largest single-disk radio *** of its high sensitivity,it can reveal the most intriguing properties of pulsars and fast radio bursts(FRBs).

关键词： bursts telescope observed

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Fragmentation for selection: how the deleterious mt DNA is removed in the female germline

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Science Bulletin 2019年第22期64卷 1646-1648页

作者： Chao tong MOE Key Laboratory for Biosystems Homeostasis & Protection and Innovation Center for Cell Signaling Network Life Sciences Institute Zhejiang University The Second Affiliated Hospital School of Medicine Zhejiang University

Mitochondria are the energy factories and metabolic centers of cells,and their malfunction can lead to multiple human *** highly dynamic organelles,mitochondria undergo frequent fission and fusion processes[1].The fusion process enables the exchange of inner materials between individual *** materials from healthy mitochondria could potentially compensate for the defects found in the defective *** processes not only increase the mitochondrial number but also separate the damaged parts of mitochondria from the healthy ones,thus,facilitating the elimination of the defective mitochondria through a process known as *** fusion leads to extra connections and branching of the mitochondria,whereas extra fission results in fragmentation of *** fusion and fission processes are differently tuned in various tissues to adapt to different physiological requirements[2].

关键词： removed branching elimination

Research of network technology for Intelligent Circuit Breaker Controller

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第3期8卷 464-468页

作者： LIU Jiao-min FAN tong-rang tong Kuan-zhang Electrical Apparatus Research Institute Hebei University of Technology Tianjin 300130 China Department of Information Engineering Shijiazhuang Railway Institute Sho＇iazhuang 050043 China

With the current development trend of Ethernet gradually towards the control network of plant-floor layer and devices layer, much management information on Intelligent Circuit Breaker Controller (ICBC) is becoming distributed and networked. This paper describes a mixing structure of complex industrial field control network based on Ethernet frame, then mainly discusses three network management methods of ICBC, such as the interconnection method based on PCI, embedded gateway and em- bedded Web server. At the same time, it also gives the basic hardware framework of implementing interconnection, the type of main components, and the real-time operation system supporting the embedded TCP/IP protocols and Web server.

关键词： CAN bus Control network Ethernet TCP/IE Embedded Web

The effect of different high pressure die casting parameters on 3D microstructure and mechanical properties of AE44 magnesium alloy

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Journal of Magnesium and Alloys 2023年第9期11卷 3141-3150页

作者： tong-tong Zhang Wen-bo Yu Chao-sheng Ma Wan-tong Chen Lin Zhang Shou-mei Xiong Center of Materials Science and Engineering School of Mechanical and Electronic Control EngineeringBeijing Jiaotong UniversityBeijing 100044China China Academy of Machinery Science and Technology Group Co. LtdBeijing 100044China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China

To understand the relationship between the process-microstructure-mechanical properties of the high-pressure die-casting(HPDC) AE44 magnesium alloy, 3D reconstruction and 2D characterization were carried out on the HPDC castings produced with different process parameters(low slow-shot speed, fast slow-shot speed, solidification pressure). Microstructural characterization revealed that the formation of shrinkage pores are closely related to ESCs, which were mainly controlled by the low slow-shot speed in shot sleeve(ESCs growth time) and fast slow-shot speed into the die cavity(distribution of ESCs). In addition, solidification pressure can significantly reduce the shrinkage porosity in the center by improving the feeding capacity of liquid metal. Tensile fracture revealed that the tearing ridge is mainly evolved from the slip band of ESCs. The quantity and distribution of ESCs determine the fracture mode of castings. The relationship between mechanical properties of castings and the morphology of ESCs and porosity is also statistically discussed.

关键词： HPDC parameters Porosity Externally solidified crystals(ESCs) Tensile fracture 3D reconstruction

From aqueous Zn-ion battery to Zn-MnO_(2) flow battery:A brief story

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Journal of Energy Chemistry 2021年第3期30卷 194-201页

作者： tong Xue Hong Jin Fan School of Materials Science and Engineering North Minzu UniversityYinchuan 750021NingxiaChina School of Physical and Mathematical Sciences and Innovative Centre for Flexible DevicesNanyang Technological UniversitySingapore 637371Singapore

Aqueous Zn-ion battery(AZIB)has become an attractive technology because of its unique features of low cost,high safety and the ***_(2) is the model cathode material for AZIB since the first report on reversible Zn-MnO_(2) battery,but recent studies have unveiled different charge storage *** to revamping of the electrochemistry and redesigning of the electrolyte and interface,there is tremendous performance enhancement in *** mini Review will first give a brief introduction of ZIB,including fundamentals of materials and components,and the progress in recent ***,a general classification of working mechanisms related to MnO_(2) in neutral and mildly acidic electrolyte is *** focus is put on the recent blossoming Zn-MnO_(2) electrolytic mechanism,which has given birth to the Zn-MnO_(2) redox flow batteries that are highly promising for large-scale static energy storage.

关键词： Aqueous zinc-ion battery Deposition/dissolution Electrolytic battery Zn-MnO2 flow battery

Data-driven glass-forming ability criterion for bulk amorphous metals with data augmentation

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Journal of Materials Science & Technology 2022年第26期121卷 99-104页

作者： Jie Xiong tong-Yi Zhang School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen 518000China Hong Kong University of Science and Technology(Guangzhou) Guangzhou 511400China Material Genome Institute Shanghai UniversityShanghai 200444China

A data augmentation technique is employed in the current work on a training dataset of 610 bulk metallic glasses(BMGs),which are randomly selected from 762 collected *** ensemble machine learning(ML)model is developed on augmented training dataset and tested by the rest 152 *** result shows that ML model has the ability to predict the maximal diameter Dmaxof BMGs more accurate than all reported ML *** addition,the novel ML model gives the glass forming ability(GFA)rules:average atomic radius ranging from 140 pm to 165 pm,the value of TT/(T-T)(T-T)being higher than 2.5,the entropy of mixing being higher than 10 J/K/mol,and the enthalpy of mixing ranging from-32 k J/mol to-26 k J/*** model is interpretative,thereby deepening the understanding of GFA.

关键词： Materials informatics Glass-forming ability Data augmentation Model interpretation Meta-ensemble model

Effect of 2s Orbitals on the Electronic Hopping in Polyacetylene

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Chinese Physics Letters 1997年第1期14卷 59-62页

作者： tong Guo-ping Department of Physics Zhejiang Normal UniversityJinhua 321004

The extended Wannier function constructed by hydrogen-like atom wave function is used to calculate the electronic hopping and the density of the states of trans-polyacetylene with a single-chain planar *** this technique 2s and 2pz orbitals are taken into *** computed result shows that the electronic hopping interactions,especially non-neighbor hopping,are considerably affected by 2s orbitals,which are able not only to narrow the energy bandwidth and the gap but also to weaken the nearest neighbor hopping slightly and to enhance the non-neighbor hopping greatly.

关键词： structure. neighbor narrow

Multiplier ideal sheaves in complex and algebraic geometry

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Science China Mathematics 2005年第Z1期48卷 1-31页

作者： Yum-tong Siu Department of Mathematics Harvard University CambridgeMA 02138USA

The application of the method of multiplier ideal sheaves to effective problems in algebraic geometry is briefly discussed. Then its application to the deformational invariance of plurigenera for general compact algebraic manifolds is presented and *** its application to the conjecture of the finite generation of the canonical ring is explored, and the use of complex algebraic geometry in complex Neumann estimates is discussed.

关键词： algebraic geometry, multiplier ideal sheaf, effective problem, invariance of plurigenera, canonical ring, minimal model, complex Monge-Ampere equation, complex Neumann estimate, weakly pseudoconvexdomain.

The Generalized L_p-Mixed Affine Surface Area

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Acta Mathematica Sinica,English Series 2015年第11期31卷 1775-1788页

作者： tong Yi MA College of Mathematics and Statistics Hexi University

Abstract In this article, we put forward the concept of the （i,j）-type Lp-mixed alpine surface area, such that the notion of Lp-affine surface area which be shown by Lutwak is its special cases. Furthermore, applying this concept, the Minkowski inequality for the （i, -p）-type Lp-mixed affine surface area and the extensions of the well-known Lp-Petty atone projection inequality are established, respectively. Besides, we give an affirmative answer for the generalized Lp-Winterniz monotonicity problem.

关键词： Convex body star body i-th Lp-mixed curvature function i-th Lp-mixed curvature im-age (i j)-type Lp-mixed affine surface area