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A spatial structural similarity triplet loss for auxiliary vehicle re-identification

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science China(Information sciences) 2021年第7期64卷 239-240页

作者： Jianqing ZHU Liu LIU Xiaobin ZHU Huanqiang ZENG College of Engineering Huaqiao University UBTECH Sydney AI Centre School of Computer Science FEIT University of Sydney Department of Computer science and technology University of Science and Technology Beijing College of Information science and Engineering Huaqiao University

Dear editor,Vehicle re-identification aiming to match vehicle images captured by different cameras plays an essential role in video surveillance systems for public security. However, vehicle re-identification is a challenging computer vision problem because vehicle images usually contain a list of adverse factors, such as viewpoint variations, blurs, and ***, how to design an effective vehicle re-identification method has received increasing attention.

关键词： vehicle re-identification spatial strutural simialrity triplet loss deep learning video surveillance system

Tracking gassing behavior in pouch cell by operando on-line electrochemical mass spectrometry

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Journal of Energy Chemistry 2023年第9期84卷 286-291页

作者： Haitang Zhang Jianken Chen Baodan Zhang Xiaohong Wu Zhengang Li Leiyu Chen Junhao Wang Xiaoyu Yu Haiyan Luo Jiyuan Xue Yu-Hao Hong Yu Qiao Shi-Gang Sun State Key Laboratory of Physical Chemistry of Solid Surfaces iChEM(Collaborative Innovation Center of Chemistry for Energy Materials)Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005FujianChina Fujian science&technology Innovation Laboratory for Energy Materials of China(Tan Kah Kee Innovation Laboratory) Xiamen 361005FujianChina

As the rapid development of more powerful and safer lithiumion batteries, the mechanism study of gases evolution is attacking more and more attention in recent years. Especially under overcharge/discharge and/or high-... 详细信息

关键词： Pouch cell Operando characterization Mass spectrometry Lithium-ion batteries Gassing behavior

Simulation of the effects of defects in low temperature Ge buffer layer on dark current of Si-based Ge photodiodes

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Journal of Semiconductors 2017年第4期38卷 1-5页

作者： Xiaohui Yi Zhiwei Huang Guangyang Lin Cheng Li Songyan Chen Wei Huang Jun Li Jianyuan Wang Department of Physics Xiamen UniversityXiamen 361005China

The influence of defects in low temperature Ge layer on electrical characteristics of p-Ge/i-Ge/n-Si and n-Ge/i-Ge/p-Ge photodiodes（PDs） was *** to a two-step growth method,there are high defect densities in low-temperature buffer Ge *** is shown that the defects in low-temperature Ge layer change the band diagrams and the distribution of electric field,leading to the increase of the total dark current for p-Ge/i-Ge/n-Si PDs,whereas these defects have no influence on the dark current for n-Ge/i-Ge/p-Ge *** a complement,a three-dimensional simulation of the total current under illumination was also performed.

关键词： germanium photodiodes defects dark current simulation

The exclusive surface and electronic effects of Ni on promoting the activity of Pt towards alkaline hydrogen oxidation

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Nano Research 2022年第7期15卷 5865-5872页

作者： Kuncan Wang Hao Yang Juntao Zhang Guomian Ren Tao Cheng Yong Xu Xiaoqing Huang State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Guangzhou Key Laboratory of Low-Dimensional Materials and Energy Storage Devices Collaborative Innovation Center of Advanced Energy MaterialsSchool of Materials and EnergyGuangdong University of TechnologyGuangzhou 510006China

Ni modification is considered as an efficient strategy for boosting the performance of Pt towards alkaline hydrogen oxidation reaction(HOR),yet its specific role is largely ***,ultrathin Pt nanowires(NWs)are selected as models for revealing the significance of Ni modification on HOR by precisely positioning Ni on distinct positions of Pt *** solely influences the electronic properties of Pt and thus weakens*H adsorption when it is located in the core of PtNi alloyed NWs,leading to a moderate improvement of alkaline HOR *** Ni is distributed in both core and surface of PtNi alloyed NWs,Ni strongly weakens*H adsorption but strengthens*OH *** the other hand,the electronic properties of Pt are hardly influenced when Ni is deposited on the surface of Pt NWs,on which the strong*H and*OH adsorptions lead to the improved HOR *** work reveals the significance of Ni modification on HOR,but also promotes the fundamental researches on catalyst design for fuel cell reactions and beyond.

关键词： ultrathin Pt nanowire surface decoration Ni location electronic property hydrogen oxidation reaction

Effectiveness of Interventions to Control Transmission of Reemergent Cases of COVID-19--Jilin Province,China,2020

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China CDC weekly 2020年第34期2卷 651-654页

作者： Qinglong Zhao Meng Yang Yao Wang Laishun Yao Jianguo Qiao Zhiyong Cheng Hanyin Liu Xingchun Liu Yuanzhao Zhu Zeyu Zhao Jia Rui Tianmu Chen Jilin Provincial Center for Disease Control and Prevention ChangchunJilinChina State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics School of Public HealthXiamen UniversityXiamenFujianChina Jilin Municipal Center for Disease Control and Prevention Jilin CityJilin ProvinceChina Shulan Center for Disease Control and Prevention ShulanJilin CityJilin ProvinceChina

What is already known about this topic?COVID-19 has a high transmissibility calculated by mathematical *** dynamics of the disease and the effectiveness of intervention to control the transmission remain unclear in Jilin Province,*** is added by this report?This is the first study to report the dynamic characteristics and to quantify the effectiveness of interventions implemented in the second outbreak of COVID-19 in Jilin Province,*** effective reproduction number of the disease before and after May 10 was 4.00 and p<0.01,*** combined interventions reduced the transmissibility of COVID-19 by 99% and the number of cases by 98.36%.What are the implications for public health practice?The findings of this study would add data on the transmission of COVID-19 and provide evidence to prepare the second outbreak transmission of the disease in other areas of China even in many other countries.

关键词： Province,China Jilin COV

Core-Sheath CeO_(2)/SiO_(2) Nanofibers as Nanoreactors for Stabilizing Sinter‑Resistant Pt,Enhanced Catalytic Oxidation and Water Remediation

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Advanced Fiber Materials 2022年第5期4卷 1278-1289页

作者： Yunpeng Wang Zhihui Li Wanlin Fu Yueming Sun Yunqian Dai School of Chemistry and Chemical Engineering Southeast UniversityNanjingJiangsu 211189People’s Republic of China

One-dimensional(1D)oxide nanofibers have attracted much attention in recent years but are still hampered by the difficulty in the expansion to 2D or 3D ***,ultrathin CeO_(2)/SiO_(2)nanofibers with intriguing core-sheath structures were simply fabricated by a facile single-spinneret electrospinning method and were subsequently integrated as 2D nanofi-brous mats and 3D *** secondary oxide(i.e.,SiO_(2))could induce a unique fine structure and further inhibit the sintering of CeO_(2)nanocrystals,endowing the resultant dual-oxide nanofibers with high porosity,good flexibility,and enriched oxygen *** from the core-sheath structure and dual-oxide component,the CeO_(2)/SiO_(2)nanofibers could stabilize 2.59 nm-Pt clusters against sintering at 600℃.Once assembled into a 2D mat,the nanofibers could efficiently decrease the soot oxidation temperature by 63℃.Moreover,the core-sheath CeO_(2)/SiO_(2)nanofibers can be readily integrated with graphene nanosheets into a 3D sponge via a gas foaming protocol,showing 218.5 mg/g of adsorption capacity toward Rhodamine B *** work shed lights on the versatile applications of oxide nanofibers toward clean energy ultili-zation and low-carbon development.

关键词： Core-sheath structure CeO_(2) Nanofiber Nanoreactor

Phase and structure modulating of bimetallic Cu/In nanoparticles realizes efficient electrosynthesis of syngas with wide CO/H_(2) ratios

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Nano Research 2022年第1期15卷 528-534页

作者： Chenqi Shen Pengtang Wang Leigang Li Xiaoqing Huang Qi Shao College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005China

Syngas(CO+H_(2))is the incredibly important feedstock for producing synthetic fuels and various value-added ***_(2) electrochemical reduction to syngas is an environmental-friendly and sustainable approach,but still challenging to produce tunable syngas with a wide ratio of CO+H_(2).Herein,by modulating the structure and phase,we have successfully obtained a series of copper-indium(Cu-ln)catalysts,which are efficient for producing syngas with tunable CO+H_(2) ratios.A series of Culn bimetallic catalysts with different structures from hollow sphere to two-layer hollow sphere and different phases from CuO to CU_(2)O are *** find that the CO and H2 are the only gaseous products,in which the CCD/H_(2) ratios can be readily tuned from 1.2±0.1 to 9.0±1.5 by simply controlling the thermal annealing *** also exhibits high durability during a 10-h *** unique performance is attributed to the modulated In enrichment on the Cu surfaces during the CO_(2) reduction reaction,which causes the differences in binding energies for key reaction intermediates,thus resulting in the tunable composition of *** present work emphasizes a simple yet efficient phase and structure modulating strategy for designing potential electrocatalysts for producing syngas with widely tunable CO+H_(2) ratios.

关键词： copper indium phase-engineering CO_(2)reduction syngas

Optical quantum router with cross-phase modulation

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science China(Information sciences) 2014年第12期57卷 146-156页

作者： CHEN YeWang LIN Qing College of Computer science and technology Huaqiao University (Xiamen) College of Information science and Engineering Huaqiao University (Xiamen)

The quantum router is a key part of a quantum *** to design a fully quantum router is a dominant theme in the area of quantum *** on the cross-phase modulation technique,we propose a scheme to realize an optical quantum router using the c-path operation for its basic *** router is a perfect,fully quantum router,and it is available for arbitrary(separated or entangled)input signals and covers all possible control modes(the general n-control-m mode).Moreover,this router protects target signals and preserves quantum features,such as coherent superposition and *** is a new and powerful feature when compared with classical *** the development of current experimental technology,our scheme is feasible.

关键词： quantum communication quantum network quantum router cross-phase modulation quantum superposition quantum entanglement

Engineering Change Management Adaptive to PLM

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Computer Aided Drafting,Design and Manufacturing 2008年第2期18卷 21-26页

作者： FANG Yong-ze1, ZHONG Yi-fang2 (1. Computer College, Jimei University, xiamen 361021, China 2. College of Mechanical Engineering, Huazhong University of science and technology, Wuhan 430074,China)

Engineering Change (EC) management for a Product Lifecycle Management (PLM) system, including EC data model, EC evaluation and EC implementation is presented. A method of dynamic and parallel EC evaluation is proposed, which breaks an EC evaluation task into several subtasks. Such subtasks can be dynamically and simultaneously proceeded, disassembled and communicated by different specialists, and at the same time a set of EC objects is created. This approach provides flexible and effective evaluation of the EC. The EC implementation followed will further ensure the completeness and consistency of EC data.

关键词： engineering change management product lifecycle management data model evaluation implementation