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International Conference on Optical Communications and Networks (ICOCN)

作者： Xiaogang Yi Anbang Wang Tong Zhao Yuncai Wang University of Technology Shanxi Province China Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education Shanxi Province Taiyuan

ISBN: (纸本)9781467373746

In this paper, we review the correlation detection technique (CDT) for fiber faults diagnosis and describe our chaotic signal- and communication signal-based correlation detection schemes in passive optical network (PON). The results show that spatial resolution of 2cm and dynamic range of about 20.8dB can be achieved when chaotic signal is used. Utilizing communication signal itself as the probe light, we achieve a spatial resolution of 8cm and detection range of above 23km.

关键词： Correlation Passive optical networks Chaotic communication Optical fibers Spatial resolution

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Cover Feature: Ultrasensitive, Sustainable, and Selective Electrochemical Hydrazine Detection by ALD-Developed Two-Dimensional WO3(ChemElectroChem 2/2018)

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ChemElectroChem 2017年第2期5卷

作者： Zihan Wei Zhenyin Hai Mohammad Karbalaei Akbari Prof. Jie Hu Lachlan Hyde Prof. Stephen Depuydt Prof. Francis Verpoort Prof. Serge Zhuiykov Ghent University Global Campus Department of Applied Analytical & Physical Chemistry 119 Songdomunhwa-ro Yeonsu-gu Incheon South Korea Micro and Nano System Research Center Key Lab of Advanced Transducers and Intelligent Control System (Ministry of Education) & College of Information Engineering Taiyuan University of Technology Taiyuan 030024 Shanxi PR China Factory of the Future Swinburne University of Technology Hawthorn Australia National Research Tomsk Polytechnic University Lenin Avenue 30 634050 Tomsk Russian Federation Laboratory of Organometallics Catalysis and Ordered Materials State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center for Chemical and Material Engineering Wuhan University of Technology Wuhan P.R. China

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An Electrostatic Repulsive-Force Based Micro Actuator for Capacitive RF MEMS Switch

An Electrostatic Repulsive-Force Based Micro Actuator for Ca...

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IEEE International Conference on Nanotechnology

作者： Gang Li Xingjun Guo Qinghua Zhao Jie Hu Pengwei Li Wendong Zhang Chaoqun Cheng College of information engineering Taiyuan University of Technology Taiyuan China Key Lab of Advanced Transducers and Intelligent Control System (Ministry of Education) Taiyuan University of Technology Taiyuan China

ISBN: (纸本)9781467381574

A novel electrostatic repulsive force based micro actuator was firstly proposed to drive the capacitive radio frequency (RF) micro-electromechanical (MEMS) switch. The charging effects, which normally take place in the traditional electrostatic attractive force based MEMS switches, can be theoretically mitigated by using the proposed micro actuator, where no electric field will be produced across the dielectric when the proposed structure is actuated by the electrostatic repulsive force. The analytical models related to dielectric charging respectively derived from the electrostatic repulsive force and the electrostatic attractive force were analyzed and compared. In order to optimize the proposed micro actuator for further switch design, the formation mechanism and the operating principle of the electrostatic repulsive force was firstly analyzed, and then the relationships between displacement of movable electrode and the applied voltage were investigated by using the COMSOL Multiphysics software with the different micro actuator structures. The simulation results show that the maximum displacements of three new structures are bigger than the basic structure.

关键词： MEMS switch Charge accumulation Electrostatic repulsive force COMSOL

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Association rules mining algorithm using sharing mechanism niche leaping ant colony based on apriori algorithm

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Journal of Computational and Theoretical Nanoscience 2015年第10期12卷 3223-3231页

作者： Wang, Yang Xu, Yakun Li, Gang Wang, Hongliang MicroNano System Research Center College of Information Engineering Taiyuan University of Technology Taiyuan Shanxi China Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education Taiyuan University of Technology Taiyuan Shanxi China Ministry of Education North University of China Taiyuan China

Based on the alarm data in the information communication network under the context of big data, the paper discusses the classic association mining algorithms of Apriori and FP-Growth with living examples, elaborates the ant colony algorithm and the niche technology, combines the Apriori algorithm thought and the Travelling Salesman Problem (TSP) of the ant colony algorithm, and proposes association rules mining algorithm using Sharing mechanism Niche Leaping Ant Colony based on Apriori algorithm (SN-APLAC algorithm). The algorithm achieves the thought of "leaping ants" by accelerating support calculation through a sparse linked list and setting the route point of non frequent item sets as "stimulation point" and retains the local optimal solution to further improve the quality of association rules mining utilizing the technique of sharing mechanism niche. Copyright © 2015 American Scientific Publishers.

关键词： Association rules

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Study on Resonant Characteristics for Higher-Order Modes in Zero Index Metamaterials Loaded with Dielectric Rings

Study on Resonant Characteristics for Higher-Order Modes in ...

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Asia-Pacific Microwave Conference

作者： Binzhao Cao Wenjuan Liang Shuxian Li College of Physics and Optoelectronics Taiyuan University of technology/Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education School of Information Science and Engineering Lanzhou University

ISBN: (纸本)9781479987689

The transmission characteristics of electromagnetic wave in the parallel planar waveguide system filled with zero index metamaterials, in which embedded with dielectric rings, is improved based on the general theoretical analysis. We conceive that higher-order modes can be produced in the dielectric rings under the isotropic medium of zero index metamaterials, and also analyze the condition of producing high order modes and the resonance characteristics for several of the whispering gallery mode (WGM). The theoretical results are simulated by COMSOL and its correctness is verified. The conclusion of this paper has important application value in the manipulation of electromagnetic waves, power allocation and sensing, so on.

关键词： Electromagnetic scattering Indexes Metamaterials Dielectrics Electromagnetics Planar waveguides

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Corrigendum to “Surface stress-based biosensors” [Biosens. Bioelectron. 51 (2014) 124–135]

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Biosensors and Bioelectronics 2015年 73卷 265-266页

作者： Shengbo Sang Yuan Zhao Wendong Zhang Pengwei Li Jie Hu Gang Li MicroNano System Research Center Taiyuan University of Technology Taiyuan Shanxi 030024 People's Republic of China Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education Taiyuan University of Technology Taiyuan Shanxi 030024 People's Republic of China

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Widely tunable chaotic fiber laser for WDM-PON detection

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Optoelectronics Letters 2014年第3期10卷 232-236页

作者：张娟杨玲珍徐乃军王娟芬张朝霞刘香莲 Institute of Optoelectronic Engineering College of Physics and OptoelectronicsTaiyuan University of Technology Key Lab of Advanced Transducers and Intelligent Control System Ministry of EducationTaiyuan University of Technology

A widely tunable high precision chaotic fiber laser is proposed and experimentally demonstrated.A tunable fiber Bragg grating(TFBG) filter is used as a tuning element to determine the turning range from 1533 nm to 1558 nm with a linewidth of 0.5 nm at any *** wide tuning range is capable of supporting 32 wavelength-division multiplexing(WDM) channels with 100 GHz channel *** single wavelengths are found to be chaotic with 10 GHz *** full width at half maximum(FWHM) of the chaotic correlation curve of the different wavelengths is on a picosecond time scale,thereby offering millimeter spatial resolution in WDM detection.

关键词： WDM-PON 光纤激光器可调谐检测光纤布喇格光栅混沌空间分辨率单波长

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Characteristics of a piloted digital flow valve based on flow amplifier

Characteristics of a piloted digital flow valve based on flo...

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International Conference on Fluid Power and Mechatronics (FPM)

作者： Taotao Li Jiahai Huang Yanhong Bai Long Quan Shengguo Wang Key Lab of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi Province Taiyuan Technology Center of Taiyuan Heavy Machinery Group Yuci Hydraulic Industry Shanxi China Taiyuan University of Technology Taiyuan Shanxi CN University of Technology Shanxi China

ISBN: (纸本)9781479987719

Hydraulic switching techniques which have less throttling losses, good repeatability and can be controlled intelligently have been largely developed. The biggest challenge is the hydraulic fluctuation. It is generated in the process of opening and closing the valve. A two-stage digital flow valve operated by Pulse Width Modulation (PWM) signal is studied in this paper. The main stage is cartridge valve based on flow amplifying principle; the pilot stage is high-speed on/off valve. The fluctuation characteristic of the digital flow valve is investigated using theoretical derivation and simulation analysis. The results show that the outlet flow fluctuation is influenced by many parameters such as the frequency and duty ratio of PWM signal, the volume of control chamber, etc. It can be weakened through the proper design of these parameters. Although the fluctuation exists, the mean outlet flow can be proportionally controlled by adjustment of the duty ratio of the control signal.

关键词： Valves Fluctuations Switches Frequency control Pulse width modulation Fluids

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Fragmentation of a spin-1 mixture in a magnetic field

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Physical Review A 2015年第1期91卷 013628-013628页

作者： Jie Zhang Xue Hou Bin Chen Yunbo Zhang College of Physics and Optoelectronics Taiyuan University of Technology Taiyuan 030024 P.R. China Key Lab of Advanced Transducers and Intelligent Control System of Ministry of Education Taiyuan University of Technology Taiyuan 030024 P.R. China Institute of Theoretical Physics Shanxi University Taiyuan 030006 P.R. China

We study ground-state quantum fragmentation in a mixture of a polar condensate and a ferromagnetic condensate when subjected to an external magnetic field. We pay more attention to the polar condensate, due to the fact that fragmentation of a polar condensate, which typically occurs only in a very weak magnetic field, can occur in a mixture at higher magnetic fields, where both atom numbers and number fluctuations will remain of a macroscopic magnitude, of the order of N. The role of the ferromagnetic condensate is to provide a uniform and stable background which can delay the rapid shrinkage of the zero-component population and make it possible to capture “superfragmentation.” Our method has potential applications in measurement of the interspecies spin-coupling interaction by adjusting the magnetic field.

关键词： Mixtures

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High-efficiency, broad-band and wide-angle optical absorption in ultra-thin organic photovoltaic devices

High-efficiency, broad-band and wide-angle optical absorptio...

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作者： Wang, Wenyan Hao, Yuying Cui, Yanxia Tian, Ximin Zhang, Ye Wang, Hua Shi, Fang Wei, Bin Huang, Wei Key Lab. of Advanced Transducers and Intelligent Control System Ministry of Education Taiyuan University of Technology Taiyuan 030024 China Key Laboratory of Interface Science and Engineering in Advanced Materials Taiyuan University of Technology Taiyuan 030024 China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Yanchang Road 149 Shanghai 200072 China Nanjing 210046 China

Metal nanogratings as one of the promising architectures for effective light trapping in organic photovoltaics (OPVs) have been actively studied over the past decade. Here we designed a novel metal nanowall grating with ultra-small period and ultra-high aspect-ratio as the back electrode of the OPV device. Such grating results in the strong hot spot effect in-between the neighboring nanowalls and the localized surface plasmon effect at the corners of nanowalls. These combined effects make the integrated absorption efficiency of light over the wavelength range from 400 to 650 nm in the active layer for the proposed structure, with respect to the equivalent planar structure, increases by 102% at TM polarization and by 36.5% at the TM/TE hybrid polarization, respectively. Moreover, it is noted that the hot spot effect in the proposed structure is more effective for ultra-thin active layers, which is very favorable for the exciton dissociation and charge collection. Therefore such a nanowall grating is expected to improve the overall performance of OPV devices. © 2014 Optical Society of America.

关键词： Light absorption

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