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| 1 | High thermal conductivity of suspended few-layer hexagonal boron nitride sheets显示文摘推迟的很少层的热传导六角形的硼氮化物(h-BN ) 表试验性地用一个 noncontact micro-Raman 光谱学方法被调查。为单层(1L ) 的一阶的温度系数, bilayer (2L ) 并且九层(9L ) h-BN 表被测量是(当时, electrospinning 准备的 3.41 xide nanofibers 被期望减少了热电导率与体积样品相比。自从它包含复杂样品准备方法,热电导率正在质问的 nanofibers 的大小。在这个工作,我们在场对单个 nanofiber 的热电导率的大小合适的一个新奇方法。一 microelectro 机械(MEMS ) 设备被设计了并且制作了在单个 nanofiber 上执行热传导性大小。一个特殊 Si 模板被设计收集并且转单个 nanofibers 到 MEMS 设备名上吗? | Haiqing Zhou Jixin Zhu Zheng Liu Zheng Yan Xiujun Fan Jian Lin Gunuk Wang Qingyu Yan Ting Yu Pulickel M. Ajayan James M. Tour | 2014 | Nano Research2014,7,8: | 9 |
| 2 | Recent advances in functional fiber electronics显示文摘Rapid development ofwearable electronicswith various functionalities has stimulated the demand to construct functional fiber devices due to their merits of mechanical flexibility,weavability,miniaturization,and integrability.To this end,fiber components which can realize the functions of energy storage and conversion,actuating plus sensing have gained increasing concerns.Herein,we summarize the recent progress with respect to fiber material preparation,innovative structure design,and device performance in this review,also highlighting the possibility of integrated fiber electronics as an extension of application,the remaining challenges and future perspectives toward next-generation smart systems and to facilitate their commercialization. | Xiaopei Zhang Huijuan Lin Huan Shang Jingsan Xu Jixin Zhu Wei Huang | 2021 | SusMat2021,1,1: | 3 |
| 3 | Metallic vanadium trioxide intercalated with phase transformation for advanced aqueous zinc-ion batteries显示文摘Aqueous zinc-ion batteries have broad application prospects due to the eco-friendliness,cost-economy and high safety.However,the scarcity of high-performance cathodes with outstanding rate capability and long lifespan has affected their development.Herein,we report a metallic vanadium trioxide material intercalated with phase transformation as cathode applied in aqueous zinc-ion batteries.It offers satisfactory electrochemical performances with a high specific capacity(435 mAh g^(-1) at 0.5 A g^(-1)),decent power density(5.23 kW kg^(-1))and desired energy density(331 Wh kg^(-1)),as well as good cyclability.The superior performance originates from the stable structure and fast Zn^(2+)diffusion,enabled by the pre-intercalation of Zn^(2+)and water molecules. | Kang Hu Danqing Jin Yao Zhang Longwei Ke Huan Shang Yan Yan Huijuan Lin Kun Rui Jixin Zhu | 2021 | Journal of Energy Chemistry2021,30,10: | 1 |
| 4 | Aero-Engine Surge Fault Diagnosis Using Deep Neural Network显示文摘Deep learning techniques have outstanding performance in feature extraction and modelfitting.In thefield of aero-engine fault diagnosis,the intro-duction of deep learning technology is of great significance.The aero-engine is the heart of the aircraft,and its stable operation is the primary guarantee of the aircraft.In order to ensure the normal operation of the aircraft,it is necessary to study and diagnose the faults of the aero-engine.Among the many engine fail-ures,the one that occurs more frequently and is more hazardous is the wheeze,which often poses a great threat toflight safety.On the basis of analyzing the mechanism of aero-engine surge,an aero-engine surge fault diagnosis method based on deep learning technology is proposed.In this paper,key sensor data are obtained by analyzing different engine sensor data.An aero-engine surge data-set acquisition algorithm(ASDA)is proposed to sample the fault and normal points to generate the training set,validation set and test set.Based on neural net-work models such as one-dimensional convolutional neural network(1D-CNN),convolutional neural network(RNN),and long-short memory neural network(LSTM),different neural network optimization algorithms are selected to achieve fault diagnosis and classification.The experimental results show that the deep learning technique has good effect in aero-engine surge fault diagnosis.The aero-engine surge fault diagnosis network(ASFDN)proposed in this paper achieves better results.Through training,the network achieves more than 99%classification accuracy for the test set. | Kexin Zhang Bin Lin Jixin Chen Xinlong Wu Chao Lu Desheng Zheng Lulu Tian | 2022 | Computer Systems Science & Engineering2022,42,7: | 1 |
| 5 | Stereoassembled V_(2)O_(5)@FeOOH Hollow Architectures with Lithiation Volumetric Strain Self-Reconstruction for Lithium-Ion Storage显示文摘Vanadium oxides have recently attracted widespread attention due to their unique advantages and have demonstrated promising chemical and physical properties for energy storage.This work develops a mild and efficient method to stereoassemble hollow V_(2)O_(5)@FeOOH heterostructured nanoflowers with thin nanosheets.These dual-phased architectures possess multiple lithiation voltage plateau and well-defined heterointerfaces facilitating efficient charge transfer,mass diffusion,and self-reconstruction with volumetric strain.As a proof of concept,the resulting V_(2)O_(5)@FeOOH hollow nanoflowers as an anode material for lithiumion batteries(LIBs)realize high-specific capacities,long lifespans,and superior rate capabilities,e.g.,maintaining a specific capacity as high as 985 mAhg^(-1) at 200mAg^(-1) with good cyclability. | Yao Zhang Kun Rui Aoming Huang Ying Ding Kang Hu Wenhui Shi Xiehong Cao Huijuan Lin Jixin Zhu Wei Huang | 2020 | Research2020,,1: | 1 |
| 6 | Buckle Propagation in Steel Pipes of Ultra-high Strength:Experiments,Theories and Numerical Simulations显示文摘In this paper,experimental,theoretical and numerical approaches were employed to scrutinize the buckle propagation events occurring in pipes subjected to external pressure.Two groups of samples with different radius-to-thickness ratios were fabricated using steel pipes of ultra-high strength and were subjected to compression of external pressure in a sealed pressure vessel specially designed and customized for the experiment.Experimental results were recorded through a data acquisition system.For facilitating the theoretical calculations,uniaxial tensile tests were performed on tensile pieces cut from the same pipes to obtain the material properties.It was found from the experimental results that once a buckle is initiated in a pipe,the external pressure dropped to a specific value called buckle propagation pressure and kept at this level until the whole pipe is flattened into a dog-bone shape.Based on the measured material properties and geometric parameters,theoretical solutions were computed using established ring models and shell model,and finite element predictions were also obtained from ABAQUS software.The efficiency and accuracy of the shell model and finite element model were expounded by comparing various theoretical solutions and numerical predictions with the experimental results.With the authenticated shell model and finite element model,a deep insight into the phenomenon of buckle propagation of pressurized long pipes was provided by performing a series of parametric study. | Haofeng Liang Jiahui Zhou Jixin Lin Fusong Jin Fei Xia Jianghong Xue Jiachu Xu | 2020 | Acta Mechanica Solida Sinica2020,33,4: | 0 |
| 7 | Achieving ultrahigh electrochemical performance by surface design and nanoconfined water manipulation显示文摘The effects of nanoconfined water and the charge storage mechanism are crucial to achieving the ultrahigh electrochemical performance of two-dimensional transition metal carbides(MXenes). We propose a facile method to manipulate nanoconfined water through surface chemistry modification. By introducing oxygen and nitrogen surface groups, more active sites were created for TiCMXene, and the interlayer spacing was significantly increased by accommodating three-layer nanoconfined water. Exceptionally high capacitance of 550 F g(2000 F cm) was obtained with outstanding high-rate performance. The atomic scale elucidation of the layer-dependent properties of nanoconfined water and pseudocapacitive charge storage was deeply probed through a combination of ‘computational and experimental microscopy’. We believe that an understanding of, and a manipulation strategy for, nanoconfined water will shed light on ways to improve the electrochemical performance of MXene and other two-dimensional materials. | Haisheng Li Kui Xu Pohua Chen Youyou Yuan Yi Qiu Ligang Wang Liu Zhu Xiaoge Wang Guohong Cai Liming Zheng Chun Dai Deng Zhou Nian Zhang Jixin Zhu Jinglin Xie Fuhui Liao Hailin Peng Yong Peng Jing Ju Zifeng Lin Junliang Sun | 2022 | National Science Review2022,9,6: | 0 |
| 8 | Enhancing the Adversarial Transferability with Channel Decomposition显示文摘The current adversarial attacks against deep learning models have achieved incredible success in the white-box scenario.However,they often exhibit weak transferability in the black-box scenario,especially when attacking those with defense mechanisms.In this work,we propose a new transfer-based blackbox attack called the channel decomposition attack method(CDAM).It can attack multiple black-box models by enhancing the transferability of the adversarial examples.On the one hand,it tunes the gradient and stabilizes the update direction by decomposing the channels of the input example and calculating the aggregate gradient.On the other hand,it helps to escape from local optima by initializing the data point with random noise.Besides,it could combine with other transfer-based attacks flexibly.Extensive experiments on the standard ImageNet dataset show that our method could significantly improve the transferability of adversarial attacks.Compared with the state-of-the-art method,our approach improves the average success rate from 88.2%to 96.6%when attacking three adversarially trained black-box models,demonstrating the remaining shortcomings of existing deep learning models. | Bin Lin Fei Gao Wenli Zeng Jixin Chen Cong Zhang Qinsheng Zhu Yong Zhou Desheng Zheng Qian Qiu Shan Yang | 2023 | Computer Systems Science & Engineering2023,46,9: | 0 |
| 9 | Research Towards Terahertz Power Amplifiers in Silicon-Based Process显示文摘In view of the existing design challenges for Terahertz(THz)power amplifiers(PAs),the common design methods and the efforts of the State Key Laboratory of Millimeter Wave,Southeast University,China in the development of silicon-based THz PAs,mainly including silicon-based PAs with operating frequencies covering 100–300 GHz,are summarized in this paper.Particularly,we design an LC-balun-based two-stage differential cascode PA with a center frequency of 150 GHz and an output power of 14 dBm.Based on a Marchand balun,we report a 220 GHz three-stage differential cascode PA with a saturated output power of 9.5 dBm.To further increase the output power of THz PA,based on a four-way differential power combining technique,we report a 211–263 GHz dual-LC-tank-based broadband PA with a recorded 14.7 dBm Psat and 16.4 dB peak gain.All the above circuits are designed in a standard 130 nm silicon germanium(SiGe)BiCMOS process. | CHEN Jixin ZHOU Peigen YU Jiayang LI Zekun LI Huanbo PENG Lin | 2023 | ZTE Communications2023,21,2: | 0 |
| 10 | Controllable assembling of highly-doped linked carbon bubbles on graphene microfolds显示文摘Carbon-based microassemblies(CMs) have attracted significant attention in numerous applications due to their unique hierarchical structures and delicate building blocks,especially when hollow carbon spheres(HCSs) are reasonably introduced into the construction.Herein,a new design for novel HCSscombined CMs is proposed.Remarkably,the HCSs are linear carbon bubbles linked one-by-one, arranging into necklaces decorating on the graphene microfolds.Detailed thermal analysis confirm that high temperatures straighten the linked carbon bubbles into bamboo-like carbon nanofibers,evidently due to the attenuation of doping degree.Benefiting from the abundant active sites of carbon bubbles,the obtained CMs exhibit satisfactory electrocatalytic activity for oxygen reduction reactions.This work establishes a bridge to precisely control the synthesis of carbon-based hierarchical architectures. | Tieqi Huang Chen Chen Yunfeng Hu Kang Hu Wenqing Wang Kun Rui Huijuan Lin Ruizi Li Jixin Zhu | 2021 | Journal of Energy Chemistry2021,30,7: | 0 |