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第二届海峡两岸功能材料科技与产业峰会（2015）

作者： Yuxin Zhang Ming Huang Fei Li Min Kuang Shi Jin Zhu College of Materials Science and Engineering Chongqing University National Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology Chongqing University

We would like to introduce the self-assembly of Mn O2 nanostructures with controllable morphology for electrochemical supercapacitor,including mesoporous Mn O2 nanotubes and their arrays,carbon-Mn O2 coaxial nanotubes,Cu O/Mn O2,Mn O2/diatomite,Ti O2/Mn O2,Co3O4-Sn O2/Mn O2,Mn O2-Ni foam,Mn O2-CNTs-Ni foam and Mn O2-Co3O4-Ni foam nanostructures[1-11].Noteworthily,it is the first time to synthesize

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Demonstration of multi-beam microwave heating based on the wave confinement of hexagonal photonic crystal multilayered cavity

Demonstration of multi-beam microwave heating based on the w...

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作者： Yogesh, N. Yu, Quanqiang Ouyang, Zhengbiao Solid State Photonics Laboratory THz Technical Research Center Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology Key Laboratory of Optoelectronic Device and Systems of Ministry of Education Guangdong Province College of Electronic Science and Technology Shenzhen University Shenzhen518060 China

ISBN: (纸本)9781934142301

Multi-beam microwave heating based on the wave confinement of hexagonal photonic crystal multilayered cavity is reported. The proposed hexagonal cavity is formed by alternative layers of alumina (Al2O3) and air with the thickness of 0.3a and 0.7a respectively, where 'a' is the lattice constant. The 17 layer cavity is normally excited with six microwave beams with the peak strength of 1000 V/m. The center of the cavity is loaded with a low loss dielectric and electromagnetic thermal co-simulations are carried out to study the heat transfer due to multi-beam confinement. It is found that characteristic modes of the proposed cavity show the temperature raising rate of 0.77°C/s, 190.26°C/s and 29.52°C/s at 13.855 GHz, 14.54164 GHz, and 14.78175 GHz respectively. This feature is highly useful for arriving the higher temperatures and the creation of plasmas. Particularly, it is anticipated that the proper scaling of the proposed cavity at laser length-scales provide an excellent source of laser beam heating in industrial welding and green photonic solutions.

关键词： microwave heating

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THz twist polarizer based on supramolecular fermat's spiral chiral metamaterial

THz twist polarizer based on supramolecular fermat's spiral ...

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ISBN: (纸本)9781934142301

A THz twist polarizer formed by supramolecular Fermat's spiral chiral metamaterial (SFSCMM) is reported. Twist polarizers (TPs) are the 90° polarization rotators, in which transverse magnetic linear polarization is converted into transverse electric linear polarization and vice versa. The proposed SFSCMM consists of twisted bilayered supramolecular Fermat's spiral patterns, in which each layer is chiral in nature. The design is implemented in polyimide substrate using silver as a metal. Full-wave simulations demonstrated its function of TP, where the SFSCMM shows the zero-point ellipticity with the polarization rotation angle of 89.49° at 7.765 THz. The proposed SFSCMM has a dimension of λ/1.38 × λ/1.38 × λ/10.3 at the operating wavelength and can be fabricated through standard layer-by-layer method for the realization of optical logic gates and THz switches.

关键词： Optical switches

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Space high-accuracy intelligence payload system with integrated attitude and position determination

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Instrumentation 2015年第1期2卷 3-16页

作者： LI Jin XING Fei SUN Ting LIU Zengyi YOU Zheng Department of precision instrument Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Collaborative Innovation Center for Micro / Nano Fabrication Device and System

recently,the requirements for space high resolution and high accuracy earth observation payloads are more urgent in many ***,traditional satellites mainly use the separation model of platform and *** precision of platform was unable to fulfill the requirements of high-precision imaging of *** addition,because traditional satellites mainly use the rigid connection between platform and payload,the precision of payload strongly depends on *** make satellite development and requirements increasingly *** solve these disadvantages,in this paper,we introduce a Space High-accuracy integrated Intelligence Payload(SHIP) system with real-time attitude and position *** can complete real time autonomous high accuracy attitude and position determination,high resolution remote sensing imaging,high-accuracy target position based on image,multi-mode motion imaging and target identification,tracking,self-recovery function of on orbit image,self-determination function of attitude and position,and so on.

关键词： earth observation intelligence payload optical remote sensors.

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Highly sekective and sensitice colorimetric liquid sensor array for pesticides detection

Highly sekective and sensitice colorimetric liquid sensor ar...

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The 6th International Conference on nanoscience & technology, China 2015

作者： Danqun Huo Liang Dong Hailong Jiang Huixiang Wu Huanbao Fa Mei Yang Yi Ma Shiying Zou Changjun Hou Key Laboratory of Biorheology Science and Technology Ministry of EducationCollege of BioengineeringChongqing University National Key Laboratory of Fundamental Science of Micro/Nano-Device and System Technology Chongqing University College of Chemistry and Chemical Engineering Chongqing University Sichuan University of Science & Engineering

Pesticides were widely used to boost food production which poses a huge threat to human health and the environment. In the past several decades, numerous detection system, such as liquid chromatography, gas chromatography, capillary electrophoresis had been developed for the pesticides analyses. Although these methods offer high accuracy, better repeatability and high efficiency, they are costly, time-consuming and need professionals. Therefore, simple and convenient methods for detection of pesticides are still of significant need. The Au NPs and GSH-Au NPs were synthesized in this paper aiming to develop a new strategy for rapid determination ofpesticides. Herein, we designed a gold nanoparticles(Au NPs) and glutathione-gold nanoparticles(GSH-Au NPs) sensor array for the determination of 6 pesticides based on cross-response between sensor dots and analytes. Au NPs and GSH-Au NPs yield a different response to 6 pesticides with similar structures under different p H conditions. Based on this, a new liquid arrays with 8 sensors was constructed for identification of 6 pesticides. Color of sensor dots were recorded by scanner before and after the addition of pesticides and differential spectra were obtained subsequently and analyzed by principal component analysis(PCA), hierarchical clustering analysis(HCA) and linear discriminant analysis(LDA). The experimental results exhibit good recognition performance for 6 pesticides with 100% accuracy. Then the array is optimized, the results show that A and E still were the main contributors for identification of 6 pesticides. Liquid array was used in actual samples of the jialing river water and tap water and similar results were obtained. The result shows that the array has certain feasibility in the practical application.

关键词： gold nanoparticles,sensor array,pesticides detection

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Highly precise and efficient cell separation with parylene c micropore arrayed filtration membrane 19

Highly precise and efficient cell separation with parylene c...

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19th International Conference on Miniaturized systems for Chemistry and Life sciences, microTAS 2015

作者： Liu, Y. Wang, W. Wu, W. Li, H. Sun, Y. Institute of Microelectronics Peking University Beijing100871 China National Key Laboratory of Science and Technology on Micro/Nano Fabrication 100871 China Innovation Center for Micro-Nano-Electronics and Integrated System Beijing100871 China No. 1 Hospital of Peking University Beijing100871 China School of Biological Science and Medical Engineering Beihang University Beijing100191 China

ISBN: (纸本)9780979806483

Very large scale micropore array has been recognized as a promising tool for separation and enrichment of rare targeted cells from a large sample volume. A high cell separation performance is strongly dependent on a small interspace between the separation pores (smaller than radius of the cell to avoid non-specific adhesion). Parylene C is a widely-used polymer in the MEMS for flexible thin film device preparation and some Parylene C based filtration devices have been applied for cell separation. This paper demonstrated a highly precise and efficient cell separation at a very high throughput driven only by the gravity with a very large scale (640000 micropores in 11 mm × 11 mm area) Parylene C micropore arrayed filtration membrane of ultra-high porosity. © 15CBMS-0001.

关键词： Cells

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Templated self-assembly of Au-TiO_2 binary nanoparticles-nanotubes

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Chinese Chemical Letters 2014年第6期25卷 874-878页

作者： Yu-Xin Zhang Xiao-Dong Hao Zeng-Peng Diao College of Materials Science and Engineering Chongqing University National Key Laboratory of Fundamental Science of Micro/Nano-Devices and System Technology Chongqing University

In this work, we developed a templated self-assembly approach to fabricate self-supporting Au/TiO2 binary nanoparticles-nanotubes （NPNTs） for the first time. The stable Au/TiO2 nanoparticles colloids were pre-synthesized and then deposited onto an AAO template, following by a mild calcination process. Au/TiO2 binary NPNTs can be achieved after removing the AAO template by NaOH solution. In addition, Au/TiO2 NPNTs with different thicknesses and size distributions could be achieved by tailoring the process parameters, such as the molar ratio of AuNPs to TiO2NPs, deposition modes and calcinations conditions. Therefore, these findings made controllable formation of Au/TiO2 NPNTs attractive for promising fabrication methodologies of metal/metal oxides NPNTs.

关键词： Au/TiO2 colloids nanoparticies-nanotubes Self-assembly AAO template

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system modeling based measurement error analysis of digital sun sensors

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Instrumentation 2015年第1期2卷 27-32页

作者： WEI M insong XING Fei WANG Geng YOU Zheng Department of Precision Instrument Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Tsinghua University Collaborative Innovation Center for Micro / Nano Fabrication Device and SystemTsinghua University

Stringent attitude determination accuracy is required for the development of the advanced space technologies and thus the accuracy improvement of digital sun sensors is *** this paper,we presented a proposal for measurement error analysis of a digital sun sensor.A system modeling including three different error sources was built and employed for system error *** simulations were also conducted to study the measurement error introduced by different sources of *** on our model and study,the system errors from different error sources are coupled and the system calibration should be elaborately designed to realize a digital sun sensor with extra-high accuracy.

关键词： digital sun sensors measurement error system modeling numerical simulation

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Research on dynamic performance of star tracker

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Instrumentation 2015年第1期2卷 17-26页

作者： SUN Ting XING Fei YOU Zheng Department of Precision Instrument Tsinghua University State Key Laboratory of Precision Measurement Technology and Instruments Tsinghua University Collaborative Innovation Center for Micro / Nano Fabrication Device and SystemTsinghua University

This manuscript briefly summarizes the development trends and recent research focus of the star *** the relevant technologies about dynamic performance of the star tracker are analyzed and *** can provide reference fo... 详细信息

关键词： Star tracker dynamic star image processing restoration of star image deep coupling

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An on-line water quality monitoring system for the reservoirs based on android

An on-line water quality monitoring system for the reservoir...

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作者： Dai, Zi Wen Liao, Hai Yang National Key Laboratory of Fundamental Science of Micro/Nano-Device and system Technology Chongqing University Chongqing 400044 China

ISBN: (纸本)9783038351221

According to the demand of water quality automatic monitoring in many large or medium reservoirs, we proposed an on-line water quality monitoring system. It is composed of wireless sensor networks and an embedded monitoring platform. We built a novel early-warning model to well adapt to the regular pattern of water quality change in the reservoirs. As a result, an Android application with outstanding control experience is achieved for real-time monitoring, water pollution early warning and water quality comprehensive assessment. Experimental results show that the system can work stably for a long time and provide accurate monitoring information continuously. It can also detect the abnormal signals of water quality in time and alarm. The system efficiently satisfies the requirement of water quality on-line automatic monitoring. © (2014) Trans Tech Publications, Switzerland.

关键词： Water quality

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