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| 1 | Design of large-displacement asymmetric piezoelectric microgripper based on flexible mechanisms显示文摘The output displacement of the traditional symmetrical microgripper is large,but its micro-components or parts are easily damaged due to the uneven force exerted on the left and right jaws of the gripper.The output force of the traditional asymmetric microgripper is stable.However,its output displacement is small,typically half the output displacement of the symmetric microgripper.To solve these problems,in this study,we designed a large-displacement asymmetric microgripper.First,we calculated the relationship between the theoretical input and output variables based on their geometric relationship.Then,we analyzed the performance of the microgripper using finite element software.Lastly,we used a piezoelectric actuator as the input driver of the microgripper.The errors associated with the theoretical and simulated output displacements were 7.05%and 9.24%,respectively.At 150 V of driving voltage,the maximum output displacement was 224μm,and the actual magnificationwas 11.2 times.Microparts can be gripped in parallel and stably,which confirms the validity of the design. | Xiaodong Chen Siya Hu Zilong Deng Jinhai Gao Xingjun Gao | 2019 | Nanotechnology and Precision Engineering2019，2，4： | 2 |
| 2 | Design of a flexible piezoelectric microgripper based on combined amplification principles显示文摘Aiming to address the problem of the low amplification ratio of traditional microgrippers,a two-stage microgripper based on the principle of combined amplification was designed with a high amplification ratio and large displacement,using a simple and compact structure.The relationship between theoretical input variables and output variables were first calculated by a projection theorem.Secondly,the performance of the microgripper was analyzed by finite element analysis(FEA).Finally,the accuracy of the theoretical calculation and FEA was verified experimentally.The results show that the microgripper has high magnification and can be gripped in parallel,with self-adaptability for many irregular shaped micro objects.The actual magnification was 23.2×,which is greater than similar products. | Xiaodong Chen Zilong Deng Siya Hu Jinhai Gao Xingjun Gao | 2019 | Nanotechnology and Precision Engineering2019，2，3： | 1 |
| 3 | Advances in targeted therapy mainly based on signal pathways for nasopharyngeal carcinoma显示文摘Nasopharyngeal carcinoma(NPC)is a malignant epithelial carcinoma of the head and neck region which mainly distributes in southern China and Southeast Asia and has a crucial association with the Epstein–Barr virus.Based on epidemiological data,both incidence and mortality of NPC have significantly declined in recent decades grounded on the improvement of living standard and medical level in an endemic region,in particular,with the clinical use of individualized chemotherapy and intensity-modulated radiotherapy(IMRT)which profoundly contributes to the cure rate of NPC patients.To tackle the challenges including local recurrence and distant metastasis in the current NPC treatment,we discussed the implication of using targeted therapy against critical molecules in various signal pathways,and how they synergize with chemoradiotherapy in the NPC treatment.Combination treatment including targeted therapy and IMRT or concurrent chemoradiotherapy is presumably to be future options,which may reduce radiation or chemotherapy toxicities and open new avenues for the improvement of the expected functional outcome for patients with advanced NPC. | Yuanbo Kang Weihan He Caiping Ren Jincheng Qiao Qiuyong Guo Jingyu Hu Hongjuan Xu Xingjun Jiang Lei Wang | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 1 |
| 4 | Residence time distribution and modeling of the liquid phase in an impinging stream reactor显示文摘Based on some experimental investigations of liquid phase residence time distribution(RTD)in an impinging stream reactor,a two-dimensional plug-flow dispersion model for predicting the liquid phase RTD in the reactor was proposed.The calculation results of the model can be in good agreement with the experimental RTD under different operating conditions.The axial liquid dispersion coefficient increases monotonously with the increasing liquid flux,but is almost independent of gas flux.As the liquid flux and the gas flux increase,the liquid dispersion coefficient of center-to-wall decreases.The axial liquid dispersion coefficient is much larger than that of center-to-wall,which indicates that the liquid RTD is dominated mainly by axial liquid dispersion in the impinging stream reactor. | Xingjun WANG Xianhui HU Lishun HU Guangsuo YU Fuchen WANG | 2010 | Frontiers of Chemical Science and Engineering2010，4，3： | 1 |
| 5 | Effects of Rectangular Wing Vortex Generators on the Thermal-Hydraulic Performance of Louvered Fin and Flat Tube Heat Exchanger显示文摘In this paper,a novel composite heat transfer enhancement technique comprised of louvered fins(LFs)and rectangular wing vortex generators(RWVGs)is proposed to improve the LF side thermal-hydraulic performance of louvered fin and flat tube heat exchangers(LFHEs).After validation of the LF side pressure dropΔP and heat transfer coefficient hLFof the baseline by experiments,the numerical method is applied to investigate the influential mechanisms of the RWVG parameters(the number N(7 to 15),attack angleβ(30°to 90°),height H_(VG)(0.8 mm to 2 mm)and width W_(VG)(0.8 mm to 1.2 mm))on the performance of the LFHE in the velocity range of 3 m/s to 10 m/s.Results show that thermal-hydraulic performance of the LFHE is significantly impacted by the RWVGs,and according to the performance evaluation criteria(PEC),the LFHE achieves its optimal thermal-hydraulic performance when N=7,β=45°,H_(VG)=1.8 mm and W_(VG)=1 mm.Compared to the baseline,the maximum,minimum and average increments of PEC for the optimal case are 13.85%,4.67%and 8.39%,respectively. | ZHANG Jinglong HU Xingjun LUO Yufei HUI Zheng WANG Jingyu YU Tianming | 2023 | Journal of Thermal Science2023，32，2： | 1 |
| 6 | Mapping of individual sensory nerve axons from digits to spinal cord with the transparent embedding solvent system显示文摘Achieving uniform optical resolution for a large tissue sample is a major challenge for deep imaging.For conventional tissue clearing methods,loss of resolution and quality in deep regions is inevitable due to limited transparency.Here we describe the Transparent Embedding Solvent System(TESOS)method,which combines tissue clearing,transparent embedding,sectioning and block-face imaging.We used TESOS to acquire volumetric images of uniform resolution for an adult mouse whole-body sample.The TESOS method is highly versatile and can be combined with different microscopy systems to achieve uniformly high resolution.With a light sheet microscope,we imaged the whole body of an adult mouse,including skin,at a uniform 0.8×0.8×3.5μm^(3) voxel resolution within 120 h.With a confocal microscope and a 40×/1.3 numerical aperture objective,we achieved a uniform sub-micron resolution in the whole sample to reveal a complete projection of individual nerve axons within the central or peripheral nervous system.Furthermore,TESOS allowed the first mesoscale connectome mapping of individual sensory neuron axons spanning 5 cm from adult mouse digits to the spinal cord at a uniform sub-micron resolution. | Yating Yi Youqi Li Shiwen Zhang Yi Men Yuhong Wang Dian Jing Jiayi Ding Qingjie Zhu Zexi Chen Xingjun Chen Jun-Liszt Li Yilong Wang Jun Wang Hanchuan Peng Li Zhang Wenjing Luo Jian Q.Feng Yongwen He Woo-Ping Ge Hu Zhao | 2024 | Cell Research2024，34，2： | 0 |
| 7 | Strategies for training optical neural networks显示文摘Deep learning has flourished in different areas in recent years,such as computer vision and natural language processing.However,with the end of Moore’s law,these applications that rely heavily on computing power are facing bottlenecks.Optical neural networks(ONNs)[1]use light to perform calculations[2,3]featuring high speed and low energy consumption,and they are widely regarded as the next-generation applicationspecific integrated circuit(ASIC)[4,5]for artificial intelligence. | Qipeng Yang Bowen Bai Weiwei Hu Xingjun Wang | 2022 | National Science Open2022，1，3： | 0 |
| 8 | Correction:Advances in targeted therapy mainly based on signal pathways for nasopharyngeal carcinoma显示文摘Since the acceptance and publication of this article1,the authors opted to change the order of authors in the author group.The correct order of authors is:Yuanbo Kang,Weihan He,Caiping Ren,Jincheng Qiao,Qiuyong Guo,Caiping Ren,Jingyu Hu,Hongjuan Xu,Xingjun Jiang1 and Lei Wang This has been corrected in the original version. | Yuanbo Kang Weihan He Caiping Ren Jincheng Qiao Qiuyong Guo Jingyu Hu Hongjuan Xu Xingjun Jiang Lei Wang | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 0 |
| 9 | One-step synthesis of novel core-shell bimetallic hexacyanoferrate for high performance sodium-storage cathode显示文摘Recently, the design of core-shell hierarchical architecture plays an important role in improving the electrochemical performance of Prussian blue analogue cathodes(PBAs). Unfortunately, the inconvenient stepwise preparation and the strict lattice-matching requirement have restricted the development of coreshell PBAs. Herein, we demonstrate a one-step synthesis strategy to synthesize core-shell manganese hexacyanoferrate(MnFeHCF@MnFeHCF) for the first time. And the formation mechanism of the core-shell hierarchical architecture is investigated by first-principles calculations. It is found that the as-obtained Mn FeHCF@MnFeHCF act out the superior intrinsic natures, which not only can obtain a larger specific surface area and lower Fe(CN)_(6) vacancies but also can activate more Na-storage sites. Compared with the manganese hexacyanoferrate(MnHCF), the iron hexacyanoferrate(FeHCF), and even the traditional coreshell nickel hexacyanoferrate(FeHCF@NiHCF) prepared by a stepwise method, the Mn Fe HCF@MnFeHCF demonstrates a superior rate performance, which achieves a high capacity of 131 mAh g^(−1) at 50 mA g^(−1) and delivers a considerable discharge capacity of about 100 mAh g^(−1) even at 1600 mA g^(−1). Meantime, the capacity retention can reach up to nearly 80% after 500 cycles. The improved performances could be mainly originated from two aspects: on the one hand, Mn substitution is helpful to enhance the material conductivity;on the other hand, the core-shell structure with matched lattice parameters is more favorable to enhance the diffusion coefficient of sodium ions. Beside, the structural transformation of MnFeHCF@MnFeHCF upon the extraction/insertion of sodium ions is instrumental in releasing the interior stress and effectively maintaining the integrity of the crystal structure. | Daxian Zuo Cuiping Wang Jiajia Han Qinghao Han Yanan Hu Junwei Wu Huajun Qiu Qian Zhang Xingjun Liu | 2022 | Journal of Materials Science & Technology2022，，19： | 0 |
| 10 | Enhanced bifunctional catalytic activities of N-doped graphene by Ni in a 3D trimodal nanoporous nanotubular network and its ultralong cycling performance in Zn-air batteries显示文摘Free-standing and fexible air electrodes with long-lasting bifunctional activities for both the oxygen reduction reaction(ORR)and the oxygen evolution reaction(OER)are crucial to the development of wearable Zn-air rechargeable batteries.In this work,we synthesize a fexible air electrode consisting of 3D nanoporous N-doped graphene with trimodal shells and Ni particles through repeated chemical vapor deposition(CVD)and acidic etching processes.Our results indicate that such trimodal graphene morphology significantly enhances the active N-dopant sites and graphene-coated Ni surface,which consequentially boosts both the ORR and OER activities,as well as catalytic durability.First-principles density functional theory(DFT)calculations reveal the synergetic effects between the Ni and the N-doped graphene;namely,the Ni nanoparticles boost the bifunctional activities of the coated N-doped graphene,and in turn the graphene-covering layers enhance the stability of Ni.Thanks to the better protection from the triple graphene shells,our trimodal N-doped graphene/Ni-based Zn-air battery can be stably discharged/recharged beyond 2500 h with low overpotentials.It is reasonable to expect that such freestanding trimodal graphene/Ni would be promising in many fexible energy conversion/storage devices. | Yanyi Zhang Xiang-Peng Kong Xiaorong Lin Kailong Hu Weiwei Zhao Guoqiang Xie Xi Lin Xingjun Liu Yoshikazu Ito Hua-Jun Qiu | 2022 | Journal of Energy Chemistry2022，31，3： | 0 |
| 11 | Proton radiation effects on high-speed silicon Mach-Zehnder modulators for space application显示文摘In this paper,performance degradation effects on high-speed silicon Mach-Zehnder modulators under proton radiation were investigated for future space environment applications.The test devices were exposed to 3-MeV protons of three fluence levels(5×10,2×10,and 5×10ions/cm~2),which is comparable to the radiation amount for operating in a harsh space environment after several decades.The performance of the silicon modulator after radiation was characterized in terms of modulation efficiency and eye diagram.The results illustrate that the modulation efficiency is significantly reduced after proton radiation and shows an obvious decrease with increasing radiation fluence.The extinction ratios of the on-off keying(OOK)eye diagram are obviously dropped with increasing radiation fluence and correspond well to modulation efficiency degradation.Furthermore,three representative states for data transmission are demonstrated under three fluences,from still working to the critical state and eventually complete fail.Displacement damage and ionization damage are the two major mechanisms during proton radiation,which lead to the bulk defects and accumulating defect charges and cause performance degradation of silicon Mach-Zehnder modulators. | Changhao HAN Zhaoyi HU Yuansheng TAO Engang FU Yandong HE Fenghe YANG Jun QIN Xingjun WANG | 2022 | Science China(Information Sciences)2022，65，12： | 0 |
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