检索结果-南通市图书馆

VSAN:A new visualization method for super-large-scale academic networks

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Frontiers of Computer Science 2024年第1期18卷 119-137页

作者： Qi LI Xingli wang Luoyi FU Xinde CAO Xinbing wang jing zhang Chenghu ZHOU Department of Electronic engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Computer Science and engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Environmental Science and engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Oceanography Shanghai Jiao Tong UniversityShanghai 200240China institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China

As a carrier of knowledge,papers have been a popular choice since ancient times for documenting everything from major historical events to breakthroughs in science and *** the booming development of science and technology,the number of papers has been growing *** like the fact that Internet of Things(IoT)allows the world to be connected in a flatter way,how will the network formed by massive academic papers look like?Most existing visualization methods can only handle up to hundreds of thousands of node size,which is much smaller than that of academic networks which are usually composed of millions or even more *** this paper,we are thus motivated to break this scale limit and design a new visualization method particularly for super-large-scale academic networks(VSAN).Nodes can represent papers or authors while the edges means the relation(e.g.,citation,coauthorship)between *** order to comprehensively improve the visualization effect,three levels of optimization are taken into account in the whole design of VSAN in a progressive manner,i.e.,bearing scale,loading speed,and effect of layout *** main contributions are two folded:(1)We design an equivalent segmentation layout method that goes beyond the limit encountered by state-of-the-arts,thus ensuring the possibility of visually revealing the correlations of larger-scale academic entities.(2)We further propose a hierarchical slice loading approach that enables users to observe the visualized graphs of the academic network at both macroscopic and microscopic levels,with the ability to quickly zoom between different *** addition,we propose a“jumping between nebula graphs”method that connects the static pages of many academic graphs and helps users to form a more systematic and comprehensive understanding of various academic *** our methods to three academic paper citation datasets in the AceMap database confirms the visualization scalability of VSAN in t

关键词： academic networks large graph visualization graph layout graph loading

Design of hadronic calorimeter for DarkSHINE experiment

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Nuclear Science and Techniques 2024年第9期35卷 155-167页

作者： Zhen wang Rui Yuan Han-Qing Liu jing Chen Xiang Chen Kim Siang Khaw Liang Li Shu Li Kun Liu Qi-Bin Liu Si-Yuan Song tong Sun Xiao-Long wang Yu-Feng wang Hai-Jun Yang Jun-hua zhang Yu-Lei zhang Zhi-Yu Zhao Chun-Xiang Zhu Xu-Liang Zhu Yi-Fan Zhu Tsung-Dao Lee institute Shanghai Jiao Tong University1 Lisuo RoadShanghai 201210China institute of Nuclear and Particle physics School of Physics and Astronomy800 Dongchuan RoadShanghai 200240China Key Laboratory for Particle Astrophysics and Cosmology(MOE) Shanghai Key Laboratory for Particle Physics and Cosmology(SKLPPC)Shanghai Jiao Tong University800 Dongchuan RoadShanghai 200240China Key Laboratory of Nuclear physics and Ion-beam Application(MOE) Fudan UniversityShanghai 200443China institute of Modern physics Fudan UniversityShanghai 200443China

The sensitivity of the dark photon search through invisible decay final states in low-background experiments relies sig-nificantly on the neutron and muon veto efficiencies,which depend on the amount of material used and the design of the detector *** paper presents the optimized design of the hadronic calorimeter(HCAL)used in the DarkSHINE experiment,which is studied using a GEANT4-based simulation *** geometry is optimized by comparing a traditional design with uniform absorbers to one that uses different thicknesses at different locations on the detector,which enhances the efficiency of vetoing low-energy neutrons at the sub-GeV *** overall size and total amount of material used in the HCAL are optimized to be lower,owing to the load and budget requirements,whereas the overall performance is studied to satisfy the physical objectives.

关键词： Hadronic calorimeter GEANT4 simulation Neutron background Scintillation detector Dark photon

Resilience-oriented Hardening and Expansion Planning of Transmission System Under Hurricane Impact

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CSEE Journal of Power and Energy Systems 2024年第4期10卷 1746-1760页

作者： jing Zhou Heng zhang Haozhong Cheng Shenxi zhang Lu Liu Zheng wang Xiaohu zhang Key Laboratory of Control of Power Transmission and Conversion Ministry of EducationElectrical Engineering DepartmentShanghai Jiao Tong UniversityShanghai 200240China State Grid East china Branch Shanghai 200120China

In this paper,we propose a two-stage transmission hardening and planning(TH&P)model that can meet the load growth demand of normal scenarios and the resilience requirements of hurricane-induced damage *** better measure the resilience requirements,the proposed TH&P model includes two resilience assessment indexes,namely,the load shedding(LS)under the damage scenario and the average connectivity degree(ACD)at different *** first-stage model,which aims to meet the load growth demand while minimizing the LS,is formulated as a mixed-integer linear program(MILP)to minimize the total planning and hardening cost of transmission lines,the operating cost of generators,and the penalty cost of wind power and load shedding in both normal and damage *** second-stage model aims to further improve the ACD when the ACD of the scheme obtained from the first-stage model cannot reach the ***,the contribution of each transmission line to the ACD is calculated,and the next hardened line is determined to increase the *** process is repeated until the ACD meets the *** studies of the modified IEEE RTS-24 and two-area IEEE reliability test system-1996 indicate the proposed TH&P model can meet the requirements for both normal and damage scenarios.

关键词： Hardening hurricane disaster resilience transmission expansion planning

Metal chlorides loaded on activated carbon to capture elemental mercury

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Journal of Environmental Sciences 2010年第11期22卷 1814-1819页

作者： Zhemin Shen,jing Ma,Zhijian Mei,Jianda zhang School of Environmental Science and engineering,shanghai jiao tong university,shanghai 200240,china School of Environmental Science and engineering Shanghai Jiao Tong University Shanghai 200240 China

Activated carbon （AC） was considered to be an effective sorbent to control mercury in combustion systems. However, its capture capacity was low and it required a high carbon-to-mercury mass ratio. AC loaded with catalyst showed a high elemental mercury （Hg 0 ） capture capacity due to large surface area of AC and high oxidization ability of catalyst. In this study, several metal chlorides and metal oxides were used to promote the sorption capacity of AC. As a result, metal chlorides were better than metal oxides loaded on AC to remove gaseous mercury. X-ray diffractometer （XRD）, thermogravimetric analyzer （TGA） and specific surface area by Brunauer- Emmett-Teller method （BET） analysis showed the main mechanisms： first, AC had an enormous surface area for loading enough MClx; second, Cl and MxOy were generated during pyrogenation of MClx; finally, there were lots of active elements such as Cl and MxOy which could react with elemental mercury and convert it to mercury oxide and mercury chloride. The HgO and HgCl 2 might be released from AC’s porous structure by thermo regeneration. A catalytic chemisorption mechanism predominates the sorption process of elemental mercury. As Co and Mn were valence variable metal elements, their catalytic effect on Hg 0 oxidization may accelerate both oxidation and halogenation of Hg 0 . The sorbents loaded with metal chlorides possessed a synergistic function of catalytic effect of valence variable metal and chlorine oxidation.

关键词： mercury activated carbon flue gas metal chloride metal oxide

A strong physical unclonable function with machine learning immunity for Internet of Things application

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Science china(Information Sciences) 2024年第1期67卷 271-283页

作者： Pengpeng REN Yongkang XUE Linglin jing Lining zhang Runsheng wang Zhigang JI National Key Laboratory of Science and Technology on Micro/Nano Fabrication Shanghai Jiao Tong University Department of Micro/Nano Electronics Shanghai Jiao Tong University School of Electronic and Computer engineering Peking University School of Integrated Circuits Peking University

The physical unclonable functions(PUFs) are novel cryptographic primitives in modern hardware security *** with traditional alternatives based on digital keys and non-volatile memory(NVM),the PUF system shows great unclonability,high efficiency,and physical attack ***,the conventional PUF design suffers from weak machine learning immunity,high storage overhead,and unreliability,making it difficult to implement in the Internet of Things(Io T) and edge computing *** paper presents a new PUF design that could solve the proposed *** utilizing the emission probability of traps commonly found in nano-scaled transistors,a model-based PUF system with strong machine learning resistance could be *** PUF design,called Prob-PUF,needs fewer challengeresponse pairs(CRPs) space and reveals superior resistance to modeling attacks due to the mixture of stable/random bits in its output ***,the Prob-PUF system could reach a high level of uniqueness and robustness,making it a potential candidate for future cryptographically secured protocols within the IoT.

关键词： physical unclonable function (PUF) electron traps authentication encryption cryptography security

Advances in magnesium-containing bioceramics for bone repair

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Biomaterials Translational 2024年第1期5卷 3-20页

作者： Lei Qi tong Zhao jinge Yan Weiwen Ge Weidong Jiang jing wang Mazaher Gholipourmalekabadi Kaili Lin Xiuhui wang Lei zhang Department of Oral&Cranio-Maxillofacial Surgery Shanghai Ninth People’s HospitalCollege of StomatologyShanghai Jiao Tong University School of MedicineNational Clinical Research Center for Oral DiseasesShanghai Key Laboratory of Stomatology&Shanghai Research Institute of StomatologyShanghaiChina institute of Translational Medicine Shanghai UniversityOrganoid Research CenterShanghai UniversityShanghaiChina Department’s Education Deputy Department of Medical BiotechnologyIran University of Medical SciencesTehranIran

Reconstruction of bone defects or fractures caused by ageing,trauma and tumour resection is still a great challenge in clinical *** autologous bone graft is considered as gold standard,the source of natural bone is *** recent years,regenerative therapy based on bioactive materials has been proposed for bone ***,numerous studies have indicated that bioactive ceramics including silicate and phosphate bioceramics exhibit excellent osteoinductivity and osteoconductivity,further promote bone *** addition,magnesium(Mg)element,as an indispensable mineral element,plays a vital role in promoting bone mineralisation and *** this review,different types of Mg-containing bioceramics including Mg-containing calcium phosphate-based bioceramics(such as Mg-hydroxyapatite,Mg-biphasic calcium phosphate),Mg-containing calcium silicate-based bioceramics(such as Mg2SiO4,Ca2MgSi2O7 and Mg-doped bioglass),Mg-based biocements,Mg-containing metal/polymer-bioceramic composites were systematacially ***,the fabrication technologies and their materiobiological effects were deeply *** applications and perspectives of magnesium-containing bioceramics for bone repair are ***,Mg-containing bioceramics are regarded as regenerative therapy with their optimised ***,more in-depth two-way researches on their performance and structure are essential to satisfy their clinical needs.

关键词： bioactive ions bioceramics bone repair magnesium osteoconductivity

TESTS AND APPLICATIONS OF A BOUSSINESQ MODEL WITH AMBIENT CURRENT

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Journal of Hydrodynamics 2010年第4期22卷 526-536页

作者： zhang Hong-sheng wang Wei-yuan FENG Wen-jing wang Ya-ling YANG Jian-min State Key Laboratory of Ocean engineering Shanghai Jiao Tong University Shanghai 200240 China shanghai Water Planning and Design Research institute Shanghai 200232 China College of Transport and Communications Shanghai Maritime University Shanghai 200135 China

A new type Boussinesq model is proposed and applied for wave propagation in a wave flume of uniform depth and over a submerged bar with current present or absent,***,for the propagation of monochromatic incident wave with current absent,the Boussinesq model is tested in its complete form,and in a form without the introduction of utility velocity *** is validated that the introduction of utility velocity variables can improve the characteristics of velocity field,dispersion and *** versions of the Boussinesq models are of higher accuracy than the fully-nonlinear fourth-order model,which is one of the best forms among the existing traditional Boussinesq models that do not incorporate breaking mechanism in one ***,the Boussinesq model in its complete form is applied to simulating the propagation of bichromatic incident waves with current present or absent,respectively,and the modeled results are compared to the analytical ones or the experimental *** modeled results are reasonable in the case of inputting bichromatic incident waves with the strong opposing current present.

关键词： Boussinesq model ambient current wave-wave interactions velocity field bichromatic incident waves

Review of 2D Bi_(2)X_(3)(X=S,Se,Te):from preparation to photodetector

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Rare Metals 2024年第6期43卷 2349-2370页

作者： Zhi Zeng Dong-Bo wang Xuan Fang Jia-Mu Cao Bing-Ke zhang jing-Wen Pan Dong-Hao Liu Si-Hang Liu Shu-Jie jiao Tian-Yuan Chen Gang Liu Lian-Cheng Zhao Jin-Zhong wang Department of Optoelectronic Information Science School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150001China Changchun university Science and Technology School of PhysicsThe State Key Laboratory of High Power Semiconductor LasersChangchun 130022China School of Astronautics Harbin Institute of TechnologyHarbin 150001China Center for High Pressure Science and Technology Advanced Research Shanghai 201203China

Detector has become an indispensable part of human *** increasing demand for photodetectors with high performance has promoted the research of novel *** the same time,with the development of rising material system,two-dimensional(2D)materials attract a lot of attention,while the suitable option for fabricating photodetector is still *** prospering of bismuth chalcogenides injected new vitality for material field,thereinto,the unique topological insulator characteristics make the research on bismuth selenide(Bi_(2)X_(3))and bismuth telluride(Bi_(2)X_(3)) intriguing.2D Bi_(2)X_(3) also exhibits unique features among various 2D materials,of which,the adjustable narrow energy band gap and polarization-sensitive photocurrent contribute to the promising application of high performance and broadband *** this review,from a bottom-up perspective,we summarize fundamental properties,synthesis method,photodetector performance of 2D Bi_(2)X_(3) based on the previous study,which provide an overall perspective of 2D Bi_(2)X_(3).Wherein,the section of the photodetector is specifically discu ssed with regard to pure Bi_(2)X_(3) photodetector and heterojunction photodetector.A brief summary and outlook were also explored in the end.

关键词： Bi_(2)X_(3) Preparation 2D Photodetector

The largest CPIES array in the marginal sea:abundant dynamics in the northeast South china Sea

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Acta Oceanologica Sinica 2024年第1期43卷 135-137页

作者： hua Zheng Xiao-hua Zhu Min wang Ruixiang Zhao Chuanzheng zhang Feng Nan Fei Yu institute of Polar and Ocean Technology Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310012China School of Oceanography Shanghai Jiao Tong UniversityShanghai 200030China Southern Marine Science and engineering Guangdong Laboratory(Zhuhai) Zhuhai 519082China National Marine Environmental Monitoring Center Dalian 116023China Key Laboratory of Ocean Circulation and Waves Institute of OceanologyChinese Academy of SciencesQingdao 266071China university of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Laboratory for Ocean and Climate Dynamics Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

The South china Sea(SCS)is a marginal sea connecting the Pacific and Indian oceans and has gained much attention in recent *** dynamics in the northeast SCS are considerably influenced by topography,monsoons,tropical ... 详细信息

关键词： northeast marginal abundant