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学者姓名：蒋庄德
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Abstract ：
Reduced graphene oxide (rGO) fiber as a carbon-based fiber sensor has aroused widespread interest in the field of gas sensing. However, the low response value and poor flexibility of the rGO fiber sensor severely limit its application in the field of flexible wearable electronics. In this paper, a flexible and wearable nylon fiber sensor modified by rGO and ZnO quantum dots (QDs) is proposed for wide-range NO2 gas detection at room temperature. The response value of the nylon fiber sensor to 100 ppm NO2 gas is as high as 0.4958, and the response time and recovery time are 216.2 s and 667.9 s, respectively. The relationship between the sensor's response value and the NO2 concentration value is linear in the range of 20-100 ppm, and the fitting coefficient is 0.998. In addition, the test results show that the sensor also has good repeatability, flexibility, and selectivity. Moreover, an early warning module was also designed and is proposed in this paper to realize the over-limit monitoring of NO2 gas, and the flexible sensor was embedded in a mask, demonstrating its great application potential and value in the field of wearable electronics.
Keyword ：
early warning system flexible and wearable NO2 gas sensor reduced graphene oxide ZnO quantum dots
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| GB/T 7714 | Lin, Qijing , Zhang, Fuzheng , Zhao, Na et al. A Flexible and Wearable Nylon Fiber Sensor Modified by Reduced Graphene Oxide and ZnO Quantum Dots for Wide-Range NO2 Gas Detection at Room Temperature [J]. | MATERIALS , 2022 , 15 (11) . |
| MLA | Lin, Qijing et al. "A Flexible and Wearable Nylon Fiber Sensor Modified by Reduced Graphene Oxide and ZnO Quantum Dots for Wide-Range NO2 Gas Detection at Room Temperature" . | MATERIALS 15 . 11 (2022) . |
| APA | Lin, Qijing , Zhang, Fuzheng , Zhao, Na , Zhao, Libo , Wang, Zuowei , Yang, Ping et al. A Flexible and Wearable Nylon Fiber Sensor Modified by Reduced Graphene Oxide and ZnO Quantum Dots for Wide-Range NO2 Gas Detection at Room Temperature . | MATERIALS , 2022 , 15 (11) . |
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Abstract ：
A multichannel passive ferromagnetic particle inductive sensor is proposed, which is mainly composed of a honeycomb permanent magnet and a set of coils. The honeycomb magnet generates the same high gradient static magnetic field in each channel (a total of seven channels, six surrounding, and one center), which helps improve the sensor's throughput while maintain high precision. An induced voltage model that includes most of the structural design parameters is proposed, which provides theoretical support for sensor optimization. The correctness of this model is verified by finite element simulation and experiments. The experimental results show that the detection performance of each channel is almost the same, which is expected to he further improved by setting a reference channel. Moreover, the sensor can detect 70 mu m iron particles in a single channel of diameter 4 mm. The proposed sensor can reduce the influence of magnetic field radial uniformity on the induced signals, improve the detection precision, and achieve high throughput (about a 14-fold increase in throughput compared to our previous work). Its high precision and high throughput favor lots of lube oil detection.
Keyword ：
High precision high throughput honeycomb permanent magnet induced voltage model passive ferromagnetic particle sensor
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| GB/T 7714 | Yuan, Zheng , Feng, Song , Chen, Shanshan et al. A Ferromagnetic Particle Sensor Based on a Honeycomb Permanent Magnet for High Precision and High Throughput [J]. | IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT , 2022 , 71 . |
| MLA | Yuan, Zheng et al. "A Ferromagnetic Particle Sensor Based on a Honeycomb Permanent Magnet for High Precision and High Throughput" . | IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 71 (2022) . |
| APA | Yuan, Zheng , Feng, Song , Chen, Shanshan , Jing, Weixuan , Zhao, Libo , Jiang, Zhuangde . A Ferromagnetic Particle Sensor Based on a Honeycomb Permanent Magnet for High Precision and High Throughput . | IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT , 2022 , 71 . |
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Abstract ：
Herein, a novel conductive poly(N-phenylglycine) (PNPG) polymer was successfully prepared, by in situ electrochemical polymerization method (+0.75 V versus Ag/AgCl) for 10 min, on flexible stainless-steel plate coated with a thin Au film (Au/SS) to serve as a binder-free pseudocapacitive PNPG/Au/SS electrode for energy storage devices. Compared to the electrode without Au coating, PNPG/Au/SS electrode exhibited better electrochemical performance with larger specific capacitance (495 F g-1 at a current density of 2 A g-1), higher rate performance and lower resistance, which are good indications to act as a positive electrode for asymmetric supercapacitor devices. Combined with activated carbon as a negative electrode, an asymmetric supercapacitor device was constructed. It displayed a specific capacitance of 38 F g-1 at a current density of 0.5 A g-1 and an energy density of 5.3 Wh kg-1 at a power density of 250 W kg-1. Experimentally, two asymmetric supercapacitor devices were connected in series to power a home-made windmill continuously for 8 s, revealing the high potential of this novel conductive polymer material for energy storage application. © 2022 Institute of Physics Publishing. All rights reserved.
Keyword ：
Activated carbon Capacitance Electrochemical deposition Electrochemical electrodes Energy storage Plastic coatings Polymerization Reduction Supercapacitor
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| GB/T 7714 | Li, Min , Luo, Yunyun , Jia, Chen et al. Au-assisted polymerization of conductive poly(N-phenylglycine) as high-performance positive electrodes for asymmetric supercapacitors [J]. | Nanotechnology , 2022 , 33 (4) . |
| MLA | Li, Min et al. "Au-assisted polymerization of conductive poly(N-phenylglycine) as high-performance positive electrodes for asymmetric supercapacitors" . | Nanotechnology 33 . 4 (2022) . |
| APA | Li, Min , Luo, Yunyun , Jia, Chen , Huang, Mimi , Yu, Mingzhi , Luo, Guoxi et al. Au-assisted polymerization of conductive poly(N-phenylglycine) as high-performance positive electrodes for asymmetric supercapacitors . | Nanotechnology , 2022 , 33 (4) . |
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Viscosity has been regarded as an essential issue of fluid characteristics in a widespread field, such as biochemical engineering, since it is the basic thermal property to control the production process, ensure safe production, and conduct medical diagnosis and scientific research. In order to achieve a high-precision and high-efficiency viscosity measurement in various fields, in recent years, the viscosity measurement methods have not been limited to traditional macro measurements, such as capillary method, and rotational method. But the viscosity measurement technology under micro-nano scale has shown its outstanding development and application prospects. The rapid development of micro-electromechanical systems (MEMS) technology has promoted the viscosity measurement to integration, intelligence and real-time. Meanwhile, diversified viscosity measurement methods have continuously emerged. The resonant viscosity measurement has received extensive and in-depth attention, which has shown remarkable performance. The traditional viscosity measurement methods are briefly recalled, and then the resonant methods for viscosity determination based on micro- electromechanical system technology are introduced, with summarizing their outstanding characteristics. Finally, the development trend of viscosity measurement methods based on MEMS resonance technology is prospected. © 2021 Journal of Mechanical Engineering.
Keyword ：
Diagnosis MEMS Nanotechnology Real time systems Thermal Engineering Viscosity Viscosity measurement
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| GB/T 7714 | Huang, Linya , Zhao, Libo , Luo, Guoxi et al. Review on Viscosity Measurement Sensor Based on Micro-electromechanical Systems Technology [J]. | Journal of Mechanical Engineering , 2021 , 57 (8) : 13-22 . |
| MLA | Huang, Linya et al. "Review on Viscosity Measurement Sensor Based on Micro-electromechanical Systems Technology" . | Journal of Mechanical Engineering 57 . 8 (2021) : 13-22 . |
| APA | Huang, Linya , Zhao, Libo , Luo, Guoxi , Li, Zhikang , Wu, Dezhi , Lin, Qijing et al. Review on Viscosity Measurement Sensor Based on Micro-electromechanical Systems Technology . | Journal of Mechanical Engineering , 2021 , 57 (8) , 13-22 . |
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Piezoelectric vibration energy harvester (PVEH) with auxetic layer has the advantage of increased voltage output and decreased resonant frequency. To give contribution discrimination of auxetic cantilever for increased piezoelectric output in vibration energy harvesting, this paper summarizes three influencing factors including neutral layer shift, negative Poisson's ratio, and damping loss factor. Three kinds of PVEH with different substrate structures which including solid plate, pores plate, and auxetic plate were designed and fabricated. Their piezoelectric voltage and power curves are simulated in FEA and tested in the experiment. Three contributing factors were identified and calculated for increased piezoelectric output in vibration energy harvesting by auxetic cantilever including neutral layer shift, negative Poisson's ratio, and damping loss factor. This research gives a constructive reference for the design of high output and low frequency PVEH.
Keyword ：
Auxetic layer negative Poisson's ratio neutral layer shift PVEH Resonant frequency
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| GB/T 7714 | Wang, Lu , Zhao, Libo , Jiang, Zhuangde et al. Contribution discrimination of auxetic cantilever for increased piezoelectric output in vibration energy harvesting [C] . 2021 : 513-517 . |
| MLA | Wang, Lu et al. "Contribution discrimination of auxetic cantilever for increased piezoelectric output in vibration energy harvesting" . (2021) : 513-517 . |
| APA | Wang, Lu , Zhao, Libo , Jiang, Zhuangde , Li, Xiang , Yang, Ping , Bai, Yu et al. Contribution discrimination of auxetic cantilever for increased piezoelectric output in vibration energy harvesting . (2021) : 513-517 . |
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Abstract ：
A novel and efficient enzymatic glucose sensor was fabricated based on Fe3O4 magnetic nanoparticles (Fe(3)O(4)MNPs)-modified urchin-like ZnO nanoflowers (ZnONFs). ZnONFs were hydrothermally synthesizing on a flexible PET substrate. Fe(3)O(4)MNPs were deposited on the surface of the ZnONFs by the drop-coating process. The results showed that the urchin-like ZnONFs provided strong support for enzyme adsorption. For Fe(3)O(4)MNPs, it significantly promoted the redox electron transfer from the active center of GOx to the ZnO nanoflowers beneath. More importantly, it promoted the hydrolysis of H2O2, the intermediate product of glucose catalytic reaction, and thus improved the electron yield. The sensitivity of the Nafion/GOx/Fe(3)O(4)MNPs/ZnONFs/Au/PET sensor was up to 4.52 mu A center dot mM(-1)center dot cm(-2), which was improved by 7.93 times more than the Nafion/GOx/ZnONFs/Au/PET sensors (0.57 mu A center dot mM(-1)center dot cm(-2)). The detection limit and linear range were also improved. Additionally, the as-fabricated glucose sensors show strong anti-interference performance in the test environment containing organic compounds (such as urea, uric acid, and ascorbic acid) and inorganic salt (for instance, NaCl and KCl). The glucose sensor's service life was evaluated, and it can still maintain about 80% detection performance when it was reused about 20 times. Compared with other existing sensors, the as-fabricated glucose sensor exhibits an ultrahigh sensitivity and wide detection range. In addition, the introduction of Fe(3)O(4)MNPs optimized the catalytic efficiency from the perspective of the reaction mechanism and provided potential ideas for improving the performance of other enzymatic biosensors.
Keyword ：
electrochemical sensor enzymatic glucose sensor enzyme Fe3O4 magnetic nanoparticles ZnO nanoflowers
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| GB/T 7714 | Mao, Qi , Jing, Weixuan , Gao, Weizhuo et al. High-Sensitivity Enzymatic Glucose Sensor Based on ZnO Urchin-like Nanostructure Modified with Fe3O4 Magnetic Particles [J]. | MICROMACHINES , 2021 , 12 (8) . |
| MLA | Mao, Qi et al. "High-Sensitivity Enzymatic Glucose Sensor Based on ZnO Urchin-like Nanostructure Modified with Fe3O4 Magnetic Particles" . | MICROMACHINES 12 . 8 (2021) . |
| APA | Mao, Qi , Jing, Weixuan , Gao, Weizhuo , Wei, Zhengying , Tian, Bian , Liu, Ming et al. High-Sensitivity Enzymatic Glucose Sensor Based on ZnO Urchin-like Nanostructure Modified with Fe3O4 Magnetic Particles . | MICROMACHINES , 2021 , 12 (8) . |
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A capacitive micromachined ultrasonic transducers (CMUTs) array with dual-mixed radii is designed to improve bandwidth and realize multi-modes operating for immersed ultrasonic applications. The two-size (TS) CMUT array is composed of two sub-arrays with different membrane radii, but the same cell arrangement. The two sub-arrays are separately connected to external power sources to achieve separate control of each array. An electromechanical-acoustic coupling simulation model of the TS-CMUTs array is established by finite element method to investigate their impedance and conductance properties under different DC voltages in the frequency domain. The results indicate that the designed CMUTs can operate with a significant improved frequency bandwidth ranging from 9.75 MHz to 13.35 MHz by adjusting the DC bias voltage. Compared with traditional CMUTs arrays, the proposed CMUTs array can contribute to an increase of up to 270% in the bandwidth.
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| GB/T 7714 | Liu, Zichen , Zh, Libo , Zhao, Yihe et al. Design and Simulation of a Wide-Bandwidth CMUTs Array with Dual-Mixed radii and Multi Operating Modes [C] . 2021 : 299-302 . |
| MLA | Liu, Zichen et al. "Design and Simulation of a Wide-Bandwidth CMUTs Array with Dual-Mixed radii and Multi Operating Modes" . (2021) : 299-302 . |
| APA | Liu, Zichen , Zh, Libo , Zhao, Yihe , Li, Jie , Li, Zhikang , Bai, Yu et al. Design and Simulation of a Wide-Bandwidth CMUTs Array with Dual-Mixed radii and Multi Operating Modes . (2021) : 299-302 . |
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Abstract ：
A high-accuracy differential resonant pressure sensor with two similar resonators is proposed using the linear fitting method to guarantee its output linearity without polynomial compensation. Results reveal that the nonlinearity of the differential resonant pressure sensor is largely dependent on the tensile/compressive sensor pressure-stress ratio c when two similar resonators are used separately as compressive and tensile elements. Nonlinearity decreases sharply with an appropriate ratio c. A theoretical model is proposed to obtain minimal nonlinearity and shows satisfactory agreement with the simulation results. The impact factors of ratio c are analyzed to facilitate adjustments with the designed value. Moreover, micromachining methods are used to fabricate sensing chips. Experiment results show that the nonlinearity and measurement sensitivity of the proposed differential resonant pressure sensor are ±0.02% FS and 35.5 Hz kPa-1 with the linear fitting method in a pressure range of 0-200 kPaA and temperature range of-40 °C to +40 °C. The differential linear fitting method largely decreases compensation complexity without polynomial fitting for high-precision pressure measurement. © 2021 IOP Publishing Ltd.
Keyword ：
Pressure sensors Resonators
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| GB/T 7714 | Han, Xiangguang , Zhao, Libo , Wang, Jiuhong et al. High-accuracy differential resonant pressure sensor with linear fitting method [J]. | Journal of Micromechanics and Microengineering , 2021 , 31 (4) . |
| MLA | Han, Xiangguang et al. "High-accuracy differential resonant pressure sensor with linear fitting method" . | Journal of Micromechanics and Microengineering 31 . 4 (2021) . |
| APA | Han, Xiangguang , Zhao, Libo , Wang, Jiuhong , Wang, Li , Huang, Mimi , Chen, Cuilan et al. High-accuracy differential resonant pressure sensor with linear fitting method . | Journal of Micromechanics and Microengineering , 2021 , 31 (4) . |
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Electric field (E-field) control of magnetism based on magnetoelectric coupling is one of the promising approaches for manipulating the magnetization with low power consumption. The evolution of magnetic domains under in-situ E-fields is significant for the practical applications in integrated micro/nano devices. Here, we report the vector analysis of the E-field-driven antiparallel magnetic domain evolution in FeCoSiB/PMN-PT(011) multiferroic heterostructures via in-situ quantitative magneto-optical Kerr microscope. It is demonstrated that the magnetic domains can be switched to both the 0 degrees and 180 degrees easy directions at the same time by E-fields, resulting in antiparallel magnetization distribution in ferromagnetic/ferroelectric heterostructures. This antiparallel magnetic domain evolution is attributed to energy minimization with the uniaxial strains by E-fields which can induce the rotation of domains no more than 90 degrees. Moreover, domains can be driven along only one or both easy axis directions by reasonably selecting the initial magnetic domain distribution. The vector analysis of magnetic domain evolution can provide visual insights into the strain-mediated magnetoelectric effect, and promote the fundamental understanding of electrical regulation of magnetism.
Keyword ：
magnetic domains magnetoelectric effect magneto-optical Kerr effect (MOKE) multiferroics
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| GB/T 7714 | Zhao, Xinger , Hu, Zhongqiang , Wu, Jingen et al. Vector analysis of electric-field-induced antiparallel magnetic domain evolution in ferromagnetic/ferroelectric heterostructures [J]. | JOURNAL OF ADVANCED CERAMICS , 2021 , 10 (6) : 1273-1281 . |
| MLA | Zhao, Xinger et al. "Vector analysis of electric-field-induced antiparallel magnetic domain evolution in ferromagnetic/ferroelectric heterostructures" . | JOURNAL OF ADVANCED CERAMICS 10 . 6 (2021) : 1273-1281 . |
| APA | Zhao, Xinger , Hu, Zhongqiang , Wu, Jingen , Fang, Ting , Li, Yaojin , Cheng, Yuxin et al. Vector analysis of electric-field-induced antiparallel magnetic domain evolution in ferromagnetic/ferroelectric heterostructures . | JOURNAL OF ADVANCED CERAMICS , 2021 , 10 (6) , 1273-1281 . |
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Abstract ：
It is proposed that the complex molding process and the scanning process should be unified through the differential envelope principle. After scanning the surface of the part with the contact sensor, the contour coordinates of the measured surface are calculated by the trajectory of the center of the ball, and the contour data of the complex linear surface is extracted. Then, the intelligent analysis and calculation of precision generating surface parameters and quantitative adjustment are carried out, and the exact reverse method of the special line parts with characteristic parameters is studied. There is only micron scale difference between the reverse result and the nominal value. This technology is applied to the closed-loop manufacturing process of gear parts, which reduces the dependence on the artificial experience when the machining parameters of the cylindrical gear processing equipment is adjusted and provides an effective solution for the digital and intelligent manufacturing of the parts.
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| GB/T 7714 | Liu, Yangpeng , Guo, Jingyang , Ding, Jianjun et al. Gear Mapping Technology Based on Differential Envelope Principle [J]. | MATHEMATICAL PROBLEMS IN ENGINEERING , 2021 , 2021 . |
| MLA | Liu, Yangpeng et al. "Gear Mapping Technology Based on Differential Envelope Principle" . | MATHEMATICAL PROBLEMS IN ENGINEERING 2021 (2021) . |
| APA | Liu, Yangpeng , Guo, Jingyang , Ding, Jianjun , Duan, Duanzhi , Jiang, Yuerong , Li, Changsheng et al. Gear Mapping Technology Based on Differential Envelope Principle . | MATHEMATICAL PROBLEMS IN ENGINEERING , 2021 , 2021 . |
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