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学者姓名：陆培民
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在过去的几年中,WiFi的应用已经非常普遍.将其应用在对人的定位上是研究的主流趋势,其原理是WiFi信号辐射某个区域时,会有自己的信道和频率.目前,实现室内定位过程较为复杂,首先是确保是离线状态,其次是构建一定的特征库,并且还要考虑设备的兼容性.文章给出了一种新的定位系统,通过WiFi信号获取人体的数据,并对数据做一定的分离,最后根据参数确定人体的具体位置.
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| GB/T 7714 | 刘志森 , 陆培民 , 钱慧 . 基于WiFi的目标反射信号提取及定位算法 [J]. | 长江信息通信 , 2021 , 34 (2) : 49-51 . |
| MLA | 刘志森 等. "基于WiFi的目标反射信号提取及定位算法" . | 长江信息通信 34 . 2 (2021) : 49-51 . |
| APA | 刘志森 , 陆培民 , 钱慧 . 基于WiFi的目标反射信号提取及定位算法 . | 长江信息通信 , 2021 , 34 (2) , 49-51 . |
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In this paper, we proposed a simple Surface-Enhanced Raman Scattering (SERS) detection method for the possible pesticide residues on fruit surfaces. 3-aminopropyl triethoxysilane (APTES) is used to modify Ag nanoparticles (AgNPs) on polydimethylsiloxane (PDMS) membranes. The PDMS was attached to the fruit epidermis to adsorb the substance, and then the SERS test was performed to analyze whether the epidermis had pesticide residues. In the present study, the AgNPs were modified using the Tollens synthesis method while glucose was set to be the reducing agent, and the AgNPs were synthesized into a uniform size of 20-50nm. In this study, we fabricated a simple flexible SERS substructure, which achieved the detection limits of R6G and Thiram at 10(-8) M. In the future, our work can be extended to biomedical applications, or focusing on the characteristic substances that may threaten the national defense and security, which has a broad application scenario.
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| GB/T 7714 | Lin, Guanzhou , Zhang, Kenan , Huang, Yun et al. A Flexible AgNPs-PDMS Substrate to Produce Ultrasensitive SERS Detection [C] . 2021 : 889-892 . |
| MLA | Lin, Guanzhou et al. "A Flexible AgNPs-PDMS Substrate to Produce Ultrasensitive SERS Detection" . (2021) : 889-892 . |
| APA | Lin, Guanzhou , Zhang, Kenan , Huang, Yun , Jin, Shengxiao , Kang, Tian , Chen, Yusa et al. A Flexible AgNPs-PDMS Substrate to Produce Ultrasensitive SERS Detection . (2021) : 889-892 . |
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Three-dimensional (3D) all-metal metamaterial with subwavelength structures are widely used to excite local surface plasma polaritons through the coupling of electromagnetic fields with metallic electron plasmas, because of its diversity and flexibility. Herein, a novel fabrication process combined with electron-beam-lithography and electroplating processes, has been developed to produce an 3D all-gold metamaterial. The metamaterial consists of underlying gold film and golden mushroom array, producing a metal-insulator-metal structure in which the dielectric layer can be filled with air or other liquid to be tested. After filling with different liquids, there are obvious changes in the reflection spectrum, and the sensitivity could reach 480.91 nm per refraction index unit, so it has potential in the field of real-time refractive index detection.
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| GB/T 7714 | Zhang, Kenan , Lin, Guanzhou , Zhu, Jia et al. 3D all-metal nano-cavity coupled metamaterial for refractive index sensing [C] . 2021 : 546-549 . |
| MLA | Zhang, Kenan et al. "3D all-metal nano-cavity coupled metamaterial for refractive index sensing" . (2021) : 546-549 . |
| APA | Zhang, Kenan , Lin, Guanzhou , Zhu, Jia , Huang, Yun , Lu, Peimin , Wu, Wengang . 3D all-metal nano-cavity coupled metamaterial for refractive index sensing . (2021) : 546-549 . |
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This paper reports an integrated bifunctional metasurface composed of metal-dielectric-metal (MDM) trapezoidal nanoantennas. Polarization, wavelength, and angle are all multiplexed to improve the integration and the performance of the metasurface. Under orthogonal polarized incidence, phase and amplitude are tuned independently by gap surface plasmon (GSP) resonance, leading to the combination of beam deflection and structural color printing functions. Both functions work in broadband, namely, 360 nm to 540 nm for beam deflection function and 400 nm to 800 nm for structural color printing function. Angle multiplexing further improves the tunability of the two functions. This integrated bifunctional metasurface is very suitable to be used in ultra-compact optics systems, and may find more applications in optical and biological sensing areas.
Keyword ：
Bifunctional Metasurface Bifunctional Metasurface Integrated Optics Integrated Optics Multiplexing Multiplexing Plasmonic Device Plasmonic Device
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| GB/T 7714 | Huang, Yun , Li, Liye , Chen, Yusa et al. AN INTEGRATED BIFUNCTIONAL METASURFACE MULTIPLEXED POLARIZATION, WAVELENGTH, AND ANGLE [C] . 2021 : 1084-1087 . |
| MLA | Huang, Yun et al. "AN INTEGRATED BIFUNCTIONAL METASURFACE MULTIPLEXED POLARIZATION, WAVELENGTH, AND ANGLE" . (2021) : 1084-1087 . |
| APA | Huang, Yun , Li, Liye , Chen, Yusa , Kang, Tian , Lin, Guanzhou , Jin, Shengxiao et al. AN INTEGRATED BIFUNCTIONAL METASURFACE MULTIPLEXED POLARIZATION, WAVELENGTH, AND ANGLE . (2021) : 1084-1087 . |
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In this paper, we have developed a replacement gate process with HSQ based on electron beam transmission exposure, which can simply and efficiently realize ideally symmetrical gate-all-around structure. HSQ replacement gate with intact morphology is successfully prepared on suspended nanowire arrays. With Si3N4 as the filling dielectric material, HSQ replacement gate is flattened by CMP and removed by hydrofluoric acid. Finally, the self-aligned and completely controllable poly-Si gate-all-around structure is realized successfully.
Keyword ：
gate-all-around and CMP gate-all-around and CMP HSQ HSQ replacement gate process replacement gate process
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| GB/T 7714 | Tu, Kun , Dong, Xiaoqiao , Zhang, Baotong et al. Development of HSQ replacement gate process for silicon nanowire MOS devices [C] . 2021 . |
| MLA | Tu, Kun et al. "Development of HSQ replacement gate process for silicon nanowire MOS devices" . (2021) . |
| APA | Tu, Kun , Dong, Xiaoqiao , Zhang, Baotong , Huang, Ru , Li, Ming , Lu, Peimin . Development of HSQ replacement gate process for silicon nanowire MOS devices . (2021) . |
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Abstract ：
This paper reports an integrated bifunctional metasurface composed of metal-dielectric-metal (MDM) trapezoidal nanoantennas. Polarization, wavelength, and angle are all multiplexed to improve the integration and the performance of the metasurface. Under orthogonal-polarized incidence, phase and amplitude are tuned independently by gap surface plasmon (GSP) resonance, leading to the combination of beam deflection and structural color printing functions. Both functions work in broadband, namely, 360 nm to 540 nm for beam deflection function and 400 nm to 800 nm for structural color printing function. Angle multiplexing further improves the tunability of the two functions. This integrated bifunctional metasurface is very suitable to be used in ultra-compact optics systems, and may find more applications in optical and biological sensing areas. © 2021 IEEE.
Keyword ：
Actuators Actuators Color printing Color printing Microsystems Microsystems Orthogonal functions Orthogonal functions Polarization Polarization Printing presses Printing presses Solid-state sensors Solid-state sensors Surface plasmon resonance Surface plasmon resonance Surface plasmons Surface plasmons
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| GB/T 7714 | Huang, Yun , Li, Liye , Chen, Yusa et al. An Integrated Bifunctional Metasurface Multiplexed Polarization, Wavelength, and Angle [C] . 2021 : 1084-1087 . |
| MLA | Huang, Yun et al. "An Integrated Bifunctional Metasurface Multiplexed Polarization, Wavelength, and Angle" . (2021) : 1084-1087 . |
| APA | Huang, Yun , Li, Liye , Chen, Yusa , Kang, Tian , Lin, Guanzhou , Jin, Shengxiao et al. An Integrated Bifunctional Metasurface Multiplexed Polarization, Wavelength, and Angle . (2021) : 1084-1087 . |
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在产品生产线,复杂的装配任务往往需要操作人员拥有较为熟练的装配技术,并且需要大量的指导手册来获取装配指导信息,但是也无法完全避免出现装配错误,大大影响了装配效率.人工智能与图像识别在近几年得到了快速的发展与应用,并且开始逐渐应用于产品生产线,辅助操作人员进行装配操作,提高了装配效率、降低了装配错误率.文章基于图像识别技术,提出了一种利用摄像头,在装配工程中辅助操作人员协同完成装配,并精确定位装配区域,实现了装配区域识别、装配定位以及操作引导,在产品生产线上极具应用意义.
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| GB/T 7714 | 王必贤 , 陆培民 , 钱慧 . 基于图像识别的辅助装配系统研究 [J]. | 长江信息通信 , 2021 , 34 (5) : 39-41 . |
| MLA | 王必贤 et al. "基于图像识别的辅助装配系统研究" . | 长江信息通信 34 . 5 (2021) : 39-41 . |
| APA | 王必贤 , 陆培民 , 钱慧 . 基于图像识别的辅助装配系统研究 . | 长江信息通信 , 2021 , 34 (5) , 39-41 . |
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Aiming at the problem that convolutional neural network is difficult to deploy on small embedded devices due to its high complexity and large storage space requirement, this paper propose a convolutional neural network FPGA accelerator architecture based on binarization. Using the gray scale processing, binarization processing, threshold setting to reduce the number of parameters. Designing Parallel structures of convolution kernels, feature maps, and matrix blocks to accelerate. The designed architecture can be deployed on the AX7103 FPGA development platform with limited resources. The experimental results show that the convolutional neural network after parallel acceleration design can achieve a recognition accuracy rate of 98.73% on the premise of reducing the data bit width from 32 bits to 8 bits, the recognition speed is about 0.21 seconds/time. © 2020 Published under licence by IOP Publishing Ltd.
Keyword ：
Convolution Convolution Convolutional neural networks Convolutional neural networks Digital storage Digital storage Field programmable gate arrays (FPGA) Field programmable gate arrays (FPGA) Integrated circuit design Integrated circuit design License plates (automobile) License plates (automobile) Network architecture Network architecture Optical character recognition Optical character recognition
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| GB/T 7714 | Cai, Yulu , Lin, Xiunan , Qian, Hui et al. FPGA Accelerator Design for License Plate Recognition Based on 1BIT Convolutional Neural Network [C] . 2020 . |
| MLA | Cai, Yulu et al. "FPGA Accelerator Design for License Plate Recognition Based on 1BIT Convolutional Neural Network" . (2020) . |
| APA | Cai, Yulu , Lin, Xiunan , Qian, Hui , Lu, Peimin . FPGA Accelerator Design for License Plate Recognition Based on 1BIT Convolutional Neural Network . (2020) . |
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现有的基于压缩感知的射频层析成像(Radio Tomographic Imaging,RTI)技术虽然能够解决传统的RTI需要足够多的观测样本来保证成像精度而导致系统损耗的问题,但是仍然无法很好地解决噪声带来的定位精度下降的影响.针对此问题,本文提出了一种基于高斯混合模型(Gaussian Mixture Model,GMM)的无矫正射频层析成像压缩成像方法.根据接收信号强度(Received Signal Strength,RSS)的特性分析,利用GMM模型对获得的RSS观测样本进行判决从而有效实现基于GMM-CS框架的无矫正RTI.实验结果表明在无需矫正的情况下,本文算法仍然可以保持较好的定位精度.当体素为0.333m时,重构结果的平均定位误差相比经典RTI求逆算法吉洪诺夫(Tikhonov)算法以及全变分(Total Variation,TV)算法分别下降了41.7％和37.7％,与基于压缩感知的算法ECS-DFL和BGMP相比分别下降80.9％和88.8％.
Keyword ：
压缩感知 压缩感知 射频层析成像 射频层析成像 高斯混合模型 高斯混合模型
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| GB/T 7714 | 林荔琳 , 陆培民 , 钱慧 . 基于高斯混合模型的无矫正射频层析压缩成像 [J]. | 广播电视网络 , 2020 , 27 (6) : 98-104 . |
| MLA | 林荔琳 et al. "基于高斯混合模型的无矫正射频层析压缩成像" . | 广播电视网络 27 . 6 (2020) : 98-104 . |
| APA | 林荔琳 , 陆培民 , 钱慧 . 基于高斯混合模型的无矫正射频层析压缩成像 . | 广播电视网络 , 2020 , 27 (6) , 98-104 . |
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Plasmonic structure color has significant potential for visual biochemical sensing by simple instrumentation or even naked eye detection. Herein, we present a visual and real-time sensing strategy for refraction index sensing and detection of the biotin-avidin system based on three-dimensional cavity-coupled metamaterials. These metamaterials composed of a top array of gold disks, aluminium pillars and a bottom reflection film of aluminium have structures similar to the metal-insulator-metal structure. The insulating layer comprises air-gap cavities that are easily filled with gaseous or liquid dielectrics. Therefore, analytes can permeate into the nano-scale cavities and produce strong light-matter interactions. The sensor shows that any tiny change in the refraction index will induce a significant color variation and the sensitivity reaches 683.5 nm per refraction index unit with a figure of merit of 3.5. The color of the metamaterials changes from rose-red to violet and then loden after a monomolecular layer of thiolated biotin and streptavidin bind to the surface of the nanostructure successively. This sensing strategy offers new opportunities for the convenient detection of proteins, nucleic acids, and lipids.
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| GB/T 7714 | Zhu, Jia , Lin, Guanzhou , Huang, Yun et al. Three-dimensional cavity-coupled metamaterials for plasmonic color and real-time colorimetric biosensors [J]. | NANOSCALE , 2020 , 12 (7) : 4418-4425 . |
| MLA | Zhu, Jia et al. "Three-dimensional cavity-coupled metamaterials for plasmonic color and real-time colorimetric biosensors" . | NANOSCALE 12 . 7 (2020) : 4418-4425 . |
| APA | Zhu, Jia , Lin, Guanzhou , Huang, Yun , Zhang, Kenan , Wu, Meizhang , Wu, Wengang et al. Three-dimensional cavity-coupled metamaterials for plasmonic color and real-time colorimetric biosensors . | NANOSCALE , 2020 , 12 (7) , 4418-4425 . |
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