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| 1 | A circular zone partition method for identifying Duffing oscillator state transition and its application to BPSK signal demodulation显示文摘When a Duffing oscillator is applied to signal detection, identifying its state transition is indispensable. Due to lack of an effective method for automatically distinguishing the state transition, phase analysis is extensively used. However, it needs ocular estimation to identify phase pattern corresponding to transition of Duffing oscillator. Hence it is not fit for communication signal demodulation. To solve the problem, this paper proposes a method, called circular zone partition (CZP), for partitioning trajectory on the phase plane of Duffing oscillator. First, a computing model for Duffing oscillator is described. Then, the fundamental principle and algorithm for the CZP method are discussed. Meanwhile the equation of a circular zone divider and its realization are presented. Thus, by way of the divider, the two-dimensional phase trajectory pattern of Duffing oscillator driven by an external signal can be transformed into the one-dimensional time signal, whose envelop after being filtered is able to indicate the state transition, i.e. the presence or the absence of external signal. Finally, to verify the effect of the CZP method on binary phase shifted keying (BPSK) signal demodulation, two examples are presented and simulation results show that this CZP method is accurate and valid for BPSK signal demodulation. | FU YongQing WU DongMei ZHANG Lin & LI XingYuan | 2011 | Science China(Information Sciences)2011，54，6： | 9 |
| 2 | Hierarchical Honeycomb-Structured Electret/Triboelectric Nanogenerator for Biomechanical and Morphing Wing Energy Harvesting显示文摘Flexible,compact,lightweight and sustainable power sources are indispensable for modern wearable and personal electronics and small-unmanned aerial vehicles(UAVs).Hierarchical honeycomb has the unique merits of compact mesostructures,excellent energy absorption properties and considerable weight to strength ratios.Herein,a honeycomb-inspired triboelectric nanogenerator(h-TENG)is proposed for biomechanical and UAV morphing wing energy harvesting based on contact triboelectrification wavy surface of cellular honeycomb structure.The wavy surface comprises a multilayered thin film structure(combining polyethylene terephthalate,silver nanowires and fluorinated ethylene propylene)fabricated through high-temperature thermoplastic molding and wafer-level bonding process.With superior synchronization of large amounts of energy generation units with honeycomb cells,the manufactured h-TENG prototype produces the maximum instantaneous open-circuit voltage,short-circuit current and output power of 1207 V,68.5μA and 12.4 mW,respectively,corresponding to a remarkable peak power density of 0.275 mW cm^(−3)(or 2.48 mW g^(−1))under hand pressing excitations.Attributed to the excellent elastic property of self-rebounding honeycomb structure,the flexible and transparent h-TENG can be easily pressed,bent and integrated into shoes for real-time insole plantar pressure mapping.The lightweight and compact h-TENG is further installed into a morphing wing of small UAVs for efficiently converting the flapping energy of ailerons into electricity for the first time.This research demonstrates this new conceptualizing single h-TENG device’s versatility and viability for broad-range real-world application scenarios. | Kai Tao Zhensheng Chen Haiping Yi Ruirong Zhang Qiang Shen Jin Wu Lihua Tang Kangqi Fan Yongqing Fu Jianmin Miao Weizheng Yuan | 2021 | Nano-Micro Letters2021，13，8： | 7 |
| 3 | Dynamic changes of phosphatidylinositol and phosphatidylinositol 4-phosphate levels modulate H^(+)-ATPase and Na^(+)/H^(+) antiporter activities to maintain ion homeostasis in Arabidopsis under salt stress显示文摘Plant metabolites are dynamically modified and distributed in response to environmental changes.How-ever,it is poorly understood how metabolic change functions in plant stress responses.Maintaining ion ho-meostasis under salt stress requires coordinated activation of two types of central regulators:plasma membrane(PM)H^(+)-ATPase and Na^(+)/H^(+) antiporter.In this study,we used a bioassay-guided isolation approach to identify endogenous small molecules that affect PM H^(+)-ATPase and Na^(+)/H^(+) antiporter activities and identified phosphatidylinositol(PI),which inhibits PM H^(+)-ATPase activity under non-stress conditions in Arabidopsis by directly binding to the C terminus of the PM H^(+)-ATPase AHA2.Under salt stress,the phosphatidylinositol 4-phosphate-to-phosphatidylinositol(PI4P-to-PI)ratio increased,and PI4P bound and activated the PM Na^(+)/H^(+) antiporter.PI prefers binding to the inactive form of PM H^(+)-ATPase,while PI4P tends to bind to the active form of the Na^(+)/H^(+) antiporter.Consistent with this,pis1 mutants,with reduced levels of PI,displayed increased PM H^(+)-ATPase activity and salt stress toler-ance,while the pi4kβ1 mutant,with reduced levels of PI4P,displayed reduced PM Na^(+)/H^(+) antiporter activity and salt stress tolerance.Collectively,our results reveal that the dynamic change between PI and PI4P in response to salt stress in Arabidopsis is crucial for maintaining ion homeostasis to protect plants from un-favorable environmental conditions. | Yongqing Yang Xiuli Han Liang Ma Yujiao Wu Xiao Liu Haiqi Fu Guoyong Liu Xiaoguang Lei Yan Guo | 2021 | Molecular Plant2021，14，12： | 4 |
| 4 | NEAR-FIELD SOURCE LOCALIZATION METHOD AND APPLICATION USING THE TIME REVERSAL MIRROR TECHNIQUE显示文摘In order to develop the acoustic keyboard for Personal Computer(PC),it is necessary to seek high-precision near-field source localization algorithm for identifying the keyboard characters.First of all,the focusing property of Time Reversal Mirror(TRM) is introduced,and then a mathe-matical model of microphone array receiving typing sound is established according to the realization of acoustic keyboard from which the TRM localization algorithm is carried out.The results through computer simulation show that the localization Root Mean Square Error(RMSE) performance of the algorithm can reach 10-3,which demonstrates that the algorithm possesses a high accuracy for the actual near-field acoustic source localization,with potential of developing the computer acoustic keyboard.Furthermore,for the purpose of testing its effect on actual near-field source localization,we organize three experiments for acoustic keyboard characters localization.The experiment results show that the positioning error of TRM algorithm is less than 1 cm within a provided acoustic keyboard region.This will provide theoretical guidance for the further research of computer acoustic keyboard. | Fu Yongqing Jiang Yulei Liu Zhanya | 2011 | Journal of Electronics(China)2011，28，4： | 4 |
| 5 | Hollow nanostructure of sea-sponge-C/SiC@SiC/C for stable Li^(+)-storage capability显示文摘For the purpose of stable performance in energy storage systems, a new hollow nanostructure of seasponge-C/SiC@SiC/C(SCS/SiC@SiC/C) has been successfully fabricated by the SCS/SiC nanospheres coated with SiC/C shells through an in situ reduction process. Based on SCSs and the carbon shells, the stable hollow structures of SCS/SiC@SiC/C can contain large proportion of active SiC layers, which are adhered to both SCSs and the inner surfaces of carbon shells. Such nanostructured anode enables an excellent cycling stability with a capacity of 612 mAh/g at a current density of 0.5 A/g after 1,800 cycles, achieving an excellent stable Li^+-storage capability. | Weina Li Jiaqi Li Jiahao Wen Ming Wen Shipei Chen Qingsheng Wu Yongqing Fu | 2019 | Science Bulletin2019，64，16： | 2 |
| 6 | SiC whisker toughened Al2O3-(Ti,W)C ceramic matrix composites显示文摘 | FU Yongqing GU Y W DU Hejun | 2001 | Scripta Mater2001，44，： | 1 |
| 7 | Recent advances of superhard nanocomposite coatings:a review显示文摘 | ZHANG SAN SUN DEEN FU YONGQING | 2003 | Surface and Coatings Technology2003，，167： | 1 |
| 8 | 显示文摘 | Zhang Sam Sun Deen Fu Yongqing | 2003 | Surface and Coating Technology2003，，167： | 1 |
| 9 | From diamond to crystalline silicon carbonitride:effect of introduction of nitrogen in CH4/H2 gas mixture using MW-PECVD 显示文摘 | Fu Yongqing Sun Chang Q Du Hejun | 2002 | Surface and Coatings Technology2002，165，： | 1 |
| 10 | Recent advances of superhard nanocomposite coa-tings:a review显示文摘 | Sam Zhang Deen Sun Yongqing Fu | 2003 | Surface and Coating Technoogy2003，167，： | 1 |
| 11 | Recent advances of superhard nanocomposite coating: a review 显示文摘 | ZHANG Sam SUN Deen FU Yongqing | 2003 | Surf Coat Tech2003，167，23： | 1 |
| 12 | Toughness measurement of thin films: a critical review显示文摘 | Sam Zhang Deen Sun Yongqing Fu Hejun Du | 2004 | Surface & Coatings Technology2004，，1： | 1 |
| 13 | Toughness measurement of thin films: a critical review显示文摘 | Sam Zhang Deen Sun Yongqing Fu Hejun Du | 2004 | Surface & Coatings Technology2004，，1： | 1 |
| 14 | Toughening of hard nanostructural thin films: a critical review显示文摘 | Sam Zhang Deen Sun Yongqing Fu Hejun Du | 2004 | Surface & Coatings Technology2004，，1： | 1 |
| 15 | Norovirus P particle-based tau vaccine-generated phosphorylated tau antibodies markedly ameliorate tau pathology and improve behavioral deficits in mouse model of Alzheimer’s disease显示文摘Dear Editor,Currently,there are no FDA-approved disease-modifying therapies that can prevent,halt,or reverse Alzheimer's disease(AD).As the unsatisfactory of amyloid-p-targeted treatment in recent years,development of Tau-targeted active immunotherapy takes much concern.1 Tau protein,a major microtubule-associated protein in the nervous system,was found to be abnormally hyperphosphorylated at six epitopes:Ser396/404,Ser202,Thr205,Ser238,and Ser262 in AD patients.2 Hence,immunotherapy targeting more highly-expressed phosphorylated Tau(pTau)species may induce a sufficient pool of pTau antibodies to eliminate pathological tau and elicit cognitive improvement. | Yao Sun Yongqing Guo Xuejian Feng Lu Fu Yayuan Zheng Yue Dong Yong Zhang Xianghui Yu' Wei Kong Hui Wu | 2021 | Signal Transduction and Targeted Therapy2021，6，3： | 1 |
| 16 | Wear behaviour of laser-treated plasma-sprayed ZrO2 coatings 显示文摘 | Fu Yongqing Andrew William Batchelor Xing Huting | 1997 | Wear1997，210，12： | 1 |
| 17 | Laser Nitriding of Pure Titanium with Ni, Cr for Improved Wear Performance 显示文摘 | Yongqing Fu Andrew W Batchelor | 1998 | Wear1998，214，1： | 1 |
| 18 | A novel structure of quasi-monolayered NiCo-bimetal-phosphide for superior electrochemical performance显示文摘Bimetallic transition metal phosphides(TMPs)as potential candidates for superior electrochemical performance are still facing great challenges in the controllable preparation of two-dimensional(2 D)structures with high aspect ratio.Herein,a novel structure of quasi-monolayered NiCo-bimetal-phosphide(NiCoP)has been designed and successfully synthesized by the newly developed process combined with ultrasonic-cavitation and phase-transition.This is the first time to break through the controllable preparation of 2 D bimetal-phosphides with a thickness of 0.98 nm in sub-nanoscale.Based on the advantages of 2 D quasi-monolayer structure with dense crystalline-amorphous interface and the reconfigured electronic structure between Ni^(δ+)/Co^(δ+)and P^(δ-),the optimized Ni_(5%)CoP exhibits an outstanding bifunctional performance for electrocatalyzing both hydrogen evolution reaction and oxygen evolution reaction in an alkaline medium.Ni_(5%)CoP presents lower overpotentials and voltage of 84 mV&259 mV and1.48 V at the current density of 10 mA cm^(-2)for HER&DER and overall water splitting,respectively,which are superior to most other reported 2 D bimetal-phosphides.This work provides a new strategy to optimize the performance of electrolytic water for bimetal-phosphates and it may be of significant value in extending the design of other ultrathin 2 D structured catalysts. | Long Zhao Ming Wen Yakun Tian Qingsheng Wu Yongqing Fu | 2022 | Journal of Energy Chemistry2022，31，11： | 1 |
| 19 | Thin Solid Films显示文摘 | Yongqing Fu Hejun Du Chang Q Sun | 2003 | 424:1072003，424，： | 1 |
| 20 | Ni-toughened nc-TiN/a-SiN x nanocomposite thin films显示文摘 | Sam Zhang Deen Sun Yongqing Fu Y.T. Pei J.Th.M. De Hosson | 2005 | Surface & Coatings Technology2005，，5： | 1 |
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