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6th Conference on Frontiers in Optical Imaging and technology: Novel Imaging Systems

作者： Xia, Weiyi Qian, Jiaming Fan, Pengfei Zuo, Chao School of Electronic and Optical Engineering Nanjing University of Science and Technology Jiangsu Province Nanjing210094 China Nanjing University of Science and Technology Jiangsu Province Nanjing210019 China Jiangsu Key Laboratory of Spectral Imaging & Intelligent Sense Jiangsu Province Nanjing210094 China Department of Intelligent Science School of Advanced Technology Xi’an Jiaotong-Liverpool University Jiangsu Province Suzhou215123 China

ISBN: (数字)9781510679719

ISBN: (纸本)9781510679702

Three-dimensional (3D) Structured illumination microscopy (SIM) has become one of the most commonly implemented fluorescence super-resolution modes in life sciences due to its unique advantages of wide field of view, fast imaging, and weak phototoxicity and photobleaching. However, the traditional two-dimensional (2D) SIM suffers from the"missing cone" problem, which makes it impossible to realize true three-dimensional (3D) imaging. In order to solve this problem, 3D SIM has been developed to achieve twice the resolution in both lateral and axial directions. Recently, we propose a tiled and layer-adaptive 3D SIM based on principal component analysis (PCA) to solve the computational complexity and time-consuming, local perturbation of illumination parameters, and microscope moving mechanical errors faced by 3D SIM in parameter estimation. The algorithm accelerates and improves the accuracy of transverse and axial illumination parameters, which is expected to achieve fast, iteration-free, high-precision, high-quality 3D SIM super-resolution imaging. © 2024 SPIE.

关键词： Principal component analysis

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Surface promotion of copper nanoparticles with alumina clusters derived from layered double hydroxide accelerates CO_(2)reduction to ethylene in membrane electrode assemblies

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Nano Research 2023年第4期16卷 4685-4690页

作者： Jie Zhang Xinnan Mao Binbin Pan Jie Xu Xue Ding Na Han Lu Wang Yuhang Wang Yanguang Li Institute of Functional Nano and Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123China Jiangsu Key Laboratory for Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123China Macao Institute of Materials Science and Engineering(MIMSE) MUST-SUDA Joint Research Center for Advanced Functional MaterialsMacao University of Science and TechnologyMacao 999078China

Electrochemical CO_(2)reduction has the vast potential to neutralize CO_(2)emission and valorizes this greenhouse gas into chemicals and fuels under mild *** commercial realization hinges on catalyst innovation as well as device engineering for enabling reactions at industrially relevant *** has been widely examined for the selective production of multicarbon chemicals particularly ethylene,while there is still a substantial gap between the expected and the *** this work,we report that the surface promotion of copper with alumina clusters is a viable strategy to enhance its electrocatalytic ***-promoted Cu catalyst is derived from Cu-Al layered double hydroxide nanosheets after alkali etching and cathodic *** can catalyze CO_(2)to ethylene and multicarbon products with great selectivity and stability far superior to pristine copper in both an H-cell and a zero-gap membrane electrode assembly(MEA)*** surface promotion effect is understood via computational simulations showing that alumina clusters can stabilize key reaction intermediates(*COOH and*OCCOH)along the reaction pathway.

关键词： electrochemical CO_(2)reduction surface promotion layered double hydroxide ethylene membrane electrode assembly

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Recognition of Citrus on Trees in Different Growth Periods 42

Recognition of Citrus on Trees in Different Growth Periods

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42nd Chinese Control Conference, CCC 2023

作者： Chen, Guangze Hua, Chunjian Zhang, Zijun School of Mechanical Engineering Jiangnan University Wuxi214122 China Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology Wuxi214122 China

ISBN: (纸本)9789887581543

Aiming at the problem of citrus identification in different growth periods, this paper proposes a detection method improved manifold ranking based on graph to realize the status monitoring and yield evaluation of green citrus in growth periods;to realize target recognition of mature yellow citrus and help automatic picking. Firstly, aiming at the problem of uneven image brightness, this paper uses a method combining fuzzy set theory and local contrast to enhance the image. Then, to solve the problem of inaccurate detection caused by the traditional manifold ranking algorithm relying on the prior edge, a method combining the relative total variation and local complexity is used to extract the foreground to remove the boundary foreground hyperpixel blocks. After manifold ranking, the saliency map is obtained. Subsequently, the saliency map is merged with the foreground and then the final saliency map is obtained by manifold ranking again. In addition, experiments have found that there is a problem of edge information loss during citrus segmentation. Therefore, this paper proposes a segmentation optimization method that combines Otsu method and hyperpixel segmentation map. The experimental results show that the algorithm can effectively recognize green and yellow citrus regions, and the recognition accuracy of yellow citrus is slightly higher than that of green citrus, in which the segmentation accuracy of green and yellow citrus is 94.87% and 97.08% respectively. © 2023 Technical Committee on Control Theory, Chinese Association of Automation.

关键词： Fuzzy set theory

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Red/NIR emission carbonized polymer dots based on citric acid-benzoylurea and their application in lymph nodes imaging

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Chinese Chemical Letters 2023年第11期34卷 225-230页

作者： Feishi Shan Tingrui Zhang Chengshuang Liao Xue Yue Jing Zhang Li Yan Yanman Liu Zhixing Cao Min Wang Yahui Zhang Leyong Wang Zhouyu Wang Xiaoqi Yu Sichuan Engineering Research Center for Molecular Targeted Diagnostic&Therapeutic Drugs Asymmetric Synthesis and Chiral Technology Key Laboratory of Sichuan ProvinceResearch and Application of Small Organic Chiral Molecules Key Laboratory of Yibin CityDepartment of ChemistryXihua UniversityChengdu 610039China State Key Laboratory of Southwestern Chinese Medicine Resources Pharmacy SchoolChengdu University of Traditional Chinese MedicineChengdu 611137China State Key Laboratory of Analytical Chemistry for Life Science Key Laboratory of Mesoscopic Chemistry of MOEJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China

Identification of lymph nodes(LNs)is critical for studies of the structure,the role in disease development,and the efficacy of disease *** polymer dots(CPDs)are expected to be potential LNs-targeted imaging agents due to their excellent properties with special structure,better photoluminescence(PL)and great ***,a red/near infrared(NIR)emission CPDs(RCPDs)with one and two-photon bioimaging based on citric acid(CA)and benzoylurea(BU)are ***,the RCPDs are capable of targeting LNs for *** homing has been demonstrated to be the cellular mechanism of RCPDs target LNs *** work has developed a new nanomaterial for targeted imaging of LNs,while the biological applications of CPDs have been expanded and deepened.

关键词： Carbonized polymer dots Red/NIR emission LNs-targeting Lymphocyte homing

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Parameter estimation algorithm based on the combination of cross-correlation and principal component analysis for structured illumination microscopy 6

Parameter estimation algorithm based on the combination of c...

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6th Conference on Frontiers in Optical Imaging and technology: Novel Technologies in Optical Systems

作者： Huang, Yuxia Qian, Jiaming Fan, Pengfei Liu, Yongtao School of Electronic and Optical Engineering Nanjing University of Science and Technology Jiangsu Province Nanjing210094 China of Nanjing University of Science and Technology Jiangsu Province Nanjing210019 China Jiangsu Key Laboratory of Spectral Imaging Intelligent Sense Jiangsu Province Nanjing210094 China Department of Intelligent Science School of Advanced Technology Xi'an Jiaotong-Liverpool University Jiangsu Province Suzhou215123 China

ISBN: (数字)9781510679672

ISBN: (纸本)9781510679665

Structured illumination microscopy (SIM) is more applicable to the super-resolution imaging of living cells by virtue of its wide field of view, fast imaging and low phototoxicity. However, a high-quality super-resolution image requires accurate parameter estimation. Recently, we have proposed an efficient and robust SIM algorithm based on principal component analysis (PCA-SIM) that integrates iteration-free reconstruction, noise robustness, and limited computational complexity. Nevertheless, as with many parameter estimation algorithms, the performance of PCA-SIM may be affected when using high-frequency sinusoidal illumination and total internal reflection fluorescence (TIRF) objective. In this work, we present a parameter estimation method of combining cross-correlation and principal component analysis, capable of accurate sub-pixel precision estimation when the 1-order spectral information is lacking without iteration, promising to achieve high-speed, long-term, artifact-free super-resolution imaging of live cells. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

关键词： Principal component analysis

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Nonlinear equalizer for spectral efficient IM/DD FBMC/OQAM transmission system

Nonlinear equalizer for spectral efficient IM/DD FBMC/OQAM t...

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2023 advanced Fiber Laser Conference, AFL 2023

作者： Fei, Yang Li, Meixia Jia, Lichen Chu, Jiamin Gao, Mingyi Jiangsu Engineering Research Center of Novel Optical Fiber Technology and Communication Network Suzhou Key Laboratory of Advanced Optical Communication Network Technology The School of Electronic and Information Engineering Soochow University No.1 Shizi Street Jiangsu Province Suzhou215006 China

ISBN: (纸本)9781510677661

Multi-carrier modulation is attractive for high-speed passive optical network. However, for a given system, its capacity is limited by the system bandwidth and the number of effective data subcarriers. With the increase of the baud rate and the number of data subcarriers, the signal distortion becomes serious. In this work, we propose a nonlinear equalizer (NLE), mainly composed of a 2-order Volterra filter and a complex-valued neural network channel estimator, to mitigate the severe signal distortion. We experimentally demonstrate and evaluate it in a spectral efficient 12.5/25-GBd intensity modulation direct detection filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) transmission system with the 10-dB bandwidth of 9.6-GHz over 30-km standard single mode fiber. In the 12.5-GBd FBMC/OQAM transmission, when the number of the data subcarriers is increased to 448 with the total 512 subcarriers, the proposed NLE outperforms the linear equalizer (LE) and can achieve about 2-dB receiver sensitivity improvement at 3.8×10-3 bit error ratio (BER), the hard decision forward error correction (HD-FEC) threshold. When the symbol rate is increased to 25-GBd, the number of data subcarriers is limited to 256 because of the power fading of high-frequency components, the LE cannot recover the distorted signal well, while the proposed NLE can still achieve better BER performance. © COPYRIGHT SPIE.

关键词： Channel estimation

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Boring holes in Au nanoplates by active surface etching

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Nano Research 2024年第9期17卷 8610-8617页

作者： Haiyang Hu Yuntao Wang Qian Wang Xudong Peng An Su Hong Wang Hongyu Chen Institute of Advanced Synthesis(IAS)and School of Chemistry and Molecular Engineering Jiangsu National Synergetic Innovation Centre for Advanced MaterialsNanjing Tech UniversityNanjing 211816China Department of Environmental Science and Engineering University of Science and Technology of ChinaHefei 230026China Department of Chemistry School of Science and Key Laboratory for Quantum Materials of Zhejiang ProvinceResearch Center for Industries of the FutureWestlake UniversityHangzhou 310030China Institute of Natural Sciences Westlake Institute for Advanced StudyHangzhou 310024China

In contrast to the conventional etching that makes nanoparticles rounder and our previous sharpening etching mode that causes serrated edges,here,we developed a new boring etching mode that targets the faces of Au nanoplates to make *** critical factors are the pre-incubation step with the ligand 2-mercapto-5-benzimidazolecarboxylic acid(MBIA)and the subsequent removal of excess ligands in the ***,etching is focused onto the few sites with initial loss of ligands,which cannot be quickly *** choice of ligand MBIA is also of importance,as it carries negative charge and repels each *** inability of forming a dense layer probably plays a critical role in the site-selectivity for faces,because ligands at the higher curvature edges and corners are expected to have less *** etching results from the comproportionation reaction between Au3+and Au0 in the nanoplates,where Br-coordination to Au and the extra stabilization from cetyltrimethylammonium bromide(CTAB)are *** believe that the ability of boring holes is an important tool for future synthetic designs.

关键词： Au nanoplates active surface etching boring etching mode cetyltrimethylammonium bromide(CTAB)passivation holes

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用于吸收型电磁屏蔽的阻抗匹配可调自支撑Ti3C2Tx薄膜（英文）

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Science China Materials 2025年第5期68卷 1581-1591页

作者：周同庆白岩蒋天遂费文坤刘淑娟李建民赵强 State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM)Nanjing University of Posts & Telecommunications College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology) Nanjing University of Posts and Telecommunications

柔性吸收型电磁干扰（EMI）屏蔽材料对于诸如电信、汽车工业、航空航天以及柔性电子等敏感电子设备至关重要,其优点在于对电磁波的反射较少,同时具有适应性强和重量轻的特点.然而,实现高吸收能力与宽带宽的同时兼具柔性以适应设备变形,... 详细信息

柔性吸收型电磁干扰（EMI）屏蔽材料对于诸如电信、汽车工业、航空航天以及柔性电子等敏感电子设备至关重要,其优点在于对电磁波的反射较少,同时具有适应性强和重量轻的特点.然而,实现高吸收能力与宽带宽的同时兼具柔性以适应设备变形,仍然是一项重大挑战.本研究通过辊对辊工艺制备了具有可调节EMI屏蔽能力的柔性多层Ti3C2Tx（ML-Ti3C2Tx）/聚四氟乙烯（PTFE）复合膜. ML-Ti3C2Tx微粒的腔体结构和复合膜的“砖石”网络所引发的多重损耗机制,为入射电磁波的多次反射和散射提供了更多通道.此外,通过控制膜的厚度和ML-Ti3C2Tx的比例,可以定制阻抗匹配以实现高吸收能力.因此,厚度为3.5毫米、ML-Ti3C2Tx/PTFE-25 wt%的复合膜在X频段达到了70 dB的高EMI屏蔽效能,反射率仅为0.0004%.值得注意的是,得益于两种组分之间的强相互作用,这些膜在变形和极低温度（-200℃）处理后仍保持恒定的性能,显示出在未来多种应用中的广阔潜力.

关键词： flexible electronics EMI shielding materials EMW absorption ultralow reflection multilayer Ti3C2Tx

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The Optimum Conditions of Loose Particles Detection for Microelectronic Packaging 26

The Optimum Conditions of Loose Particles Detection for Micr...

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26th Electronics Packaging technology Conference, EPTC 2024

作者： Duan, Xinfang Su, Lei Li, Ke Gu, Jiefei Zhao, Xinwei Pecht, Michael Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology School of Mechanical Engineering Jiangnan University Wuxi214122 China Center for Advanced Life Cycle Engineering University of Maryland College ParkMD20742 United States

ISBN: (纸本)9798331522001

To achieve effective detection of loose particles within small cavities in microelectronic devices, this paper proposes the optimal detection conditions of loose particles in ceramic packaging for microelectronic devices based on simulation. Through establishing a particle-cavity collision dynamics model in ADAMS, the motion process of particles under sinusoidal excitation is simulated. Subsequently, the paper examines the impact of different accelerations, frequencies, loose particles’ properties, and cavity heights on optimal detection conditions. Furthermore, the paper presents the optimal conditions for vibration testing, providing a valuable reference for the effective detection of loose particles in hermetically sealed microelectronic devices. © 2024 IEEE.

关键词： Microelectronics

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Off-Design Performance of 9F Gas Turbine Based on gPROMs and BP Neural Network Model

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Journal of Thermal Science 2022年第1期31卷 261-272页

作者： HAO Xuedi SUN Lei CHI Jinling ZHANG Shijie School of Mechanical Electronic&Information Engineering China university of Mining&Technology-BeijingBeijing 100083China Key Laboratory of Intelligent Mining and Robotics Ministry of Emergency ManagementBeijing 100083China Key Laboratory of Advanced Energy and Power Institute of Engineering ThermophysicsChinese Academy of SciencesBeijing 100190China

Gas turbines are increasingly and widely used,whose research and production reflect a country’s industrial capacity and *** to the changeable working environment,gas turbines usually work under the condition of simultaneous changes of ambient temperature,load and ***,the current researches mainly focus on the change in single condition,and do not fully consider the simultaneous change in different *** the basis of single condition,this paper further studies the dual off-design performance of gas turbines under three conditions:temperature-load,fuel-load and ***,the whole machine model of a gas turbine is established,in which the compressor model has the greatest impact on the performance of gas ***,this paper obtains a more accurate compressor model by combining the engineering modeling advantages of gPROMs and the powerful mathematical calculation ability of MATLAB neural ***,according to the established gas turbine model,the dual off-design performance is studied,which is mainly based on the parameter of output and *** result shows that the efficiency and power output of gas turbines will decrease with the increase of ambient *** the decrease of fuel calorific value,power output and efficiency will *** the load decreases,the efficiency of the gas turbines will decrease,and these changes are consistent with the single off-design ***,when the fuel and temperature change simultaneously,only adjusting the IGV angle cannot avoid the surge when the temperature is above 30°*** this time,it is necessary to adjust the extraction rate in order to ensure the safe and stable operation of gas ***,the research on dual off-design performance of gas turbines has an important significance for the peak shaving operation of gas turbines.

关键词： off-design performance gas turbine gPROMs MATLAB neural network peak shaving operation

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