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International Conference on (ICEPT) Electronic Packaging Technology

作者： Dongfang Cheng Xiaohui Li Jue Zhang Jiongming Wang Key Laboratory of Advanced Displays and system Application Ministry of Education Microelectronic Research & Development Centre Shanghai University Shanghai China

A dual-output voltage bandgap reference has been designed for high-accuracy pipelined ADC with CSMC0.6 process technology in this work. Based on the temperature and noise analyzing of voltage reference, the traditional circuit has been improved. The structure with two PN junctions in series,non-operational amplifier structure and PTAT (proportional to absolute temperature) current supplied by ldquoself-biasrdquo cascode current mirror, were adopted in the circuit designed. A new method to divide voltage was suggested in this study. The simulation results showed that the dual-output voltages were 2.194 V and 1.098 V respectively when temperature varied from -10 degC to 100 degC, and the temperature coefficient is only 7.00 ppm/degC; the change of V ref only was 5.326 mV, and the PSRR was 49.3 dB when source voltage varied from 6 V to 9 V. The dual-output voltage reference of the circuit designed can meet the requirement of comparator input voltage in high-accuracy pipelined ADC.

关键词： Photonic band gap Temperature Temperature sensors Integrated circuit modeling Accuracy Converters Equations

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systematic studies on fractal scan model for Flat Panel Display (FPD) controllers

引用

International Journal of Manufacturing Research 2011年第4期6卷 367-379页

作者： Xu, M. Ran, F. Chen, Z. School of Mechatronical Engineering and Automation Shanghai University Shanghai 200072 China Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai University Shanghai 200072 China Microelectronic Research and Development Centre Shanghai University Shanghai 200072 China

This paper presents the design and logic implementation of the fractal scan algorithm based on the mathematical model of the optimal scan architecture. Through the exploration of the sub-space code sequences and bit code sequences for different grey levels, we deduce the general formulae for the sequences and propose the corresponding logic implementations including the fractal scanning IP core and the general grey-level controller for Flat Panel Display (FPD). The parameterised IP core for various grey levels, embedded in FPD scan controller, can efficiently increase the scan utilisation and imaging quality. This research provides a new engineering way to solve a pressing problem of high resolution FPD technology. Copyright © 2011 Inderscience Enterprises Ltd.

关键词： Controllers

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A skin-conformal and breathable humidity sensor for emotional mode recognition and non-contact human-machine interface

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npj Flexible Electronics 2024年第1期8卷 929-937页

作者： Tongkuai Li Tingting Zhao Hao Zhang Li Yuan Congcong Cheng Junshuai Dai Longwei Xue Jixing Zhou Hai Liu Luqiao Yin Jianhua Zhang Key Laboratory of Advanced Display and System Application Ministry of EducationShanghai University149 Yanchang RoadShanghai 200072China Shanghai Key Laboratory of Intelligent Manufacturing and Robotics Shanghai University333 Nanchen RoadShanghai 200444China School of Microelectronics Shanghai University20 Chengzhong RoadShanghai 201800China

Noncontact humidity sensor overcomes the limitations of its contact sensing counterparts,including mechanical wear and cross infection,which becomes a promising candidate in healthcare and human-machine interface ***,current humidity sensors still suffer the ubiquitous issue of uncomfortable wear and skin irritation hindering the long-term *** this study,we report a skin-conformal and breathable humidity sensor assembled by anchoring MXenes-based composite into electrospun elastomer nanofibers coated with a patterned *** composite is highly sensitive to the water molecules due to its large specific surface area and abundant water-absorbing hydroxyl groups,while the elastomeric nanofibers provide an ultrathin,highly flexible,and permeable substrate to support the functional materials and *** sensor presents not only excellent air permeability(0.078 g cm^(−2)d^(−1)),high sensitivity(S=704),and fast response/recovery(0.9 s/0.9 s),but also high skin conformability and ***,this humidity sensor is confirmed to realize the recognition of motional states and emotional modes,which provides a way for the advanced noncontact human-machine interface.

关键词： composite interface conformal

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Rapid and highly effective bacteria-killing by polydopamine/IR780@MnO2–Ti using near-infrared light

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Progress in Natural Science:Materials International 2020年第5期30卷 677-685页

作者： Xingfu Teng Xiangmei Liu Zhenduo Cui Yufeng Zheng Da-fu Chen Zhaoyang Li Yanqin Liang Shengli Zhu Shuilin Wu Hubei Key Laboratory of Polymer Materials Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials School of Materials Science & Engineering Hubei University The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China School of Materials Science & Engineering Tianjin University State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering College of Engineering Peking University Beijing JiShuiTan Hospital Beijing Research Institute Orthopaedics & TraumatologyLab Bone Tissue Engineering

Bacterial infections are becoming a serious public health challenge because the abuse of antibiotics worldwide has caused bacterial resistance and the occurrence of superbugs. In this work, a new near-infrared(NIR) photoresponsive coating was constructed on Ti implant material, which was composed of Mn O2, IR780 photosensitizer and polydopamine(PDA). Under the irradiation of 808 nm NIR light, the component of Mn O2in the coating exhibited high photothermal performance, and IR780 could be stimulated to generate ROS as a photosensitizer. The addition of PDA not only improved the cytocompatibility of the composite coating but also strengthened the light absorption ability of the system. Under the irradiation of 808 nm NIR light for 15 min, the composite coating killed 99.94% Staphylococcus aureus and 99.89% Escherichia coli on Ti plates. This rapid and highly effective bactericidal rate was ascribed to the synergistic effects of photothermal performance and photodynamic effect of the coatings excited by NIR light. Cell culture tests showed that PDA/IR780@Mn O2–Ti had good cytocompatibility due to the excellent biocompatibility of PDA and nanostructured surface. Therefore,this surface system will be a very promising plateform to safely and effectively kill bacteria on biomedical devices and implants in a short time.

关键词： Antibacterial Photothermal Photocatalytic MnO2 Implant

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Motion objects segmentation using a new level set based method

Lecture Notes in Computer Science (including subseries Lectu...

引用

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2004年 3331卷 312-318页

作者： Bao, Hongqiang Zhang, Zhaoyang School of Communication and Information Engineering Shanghai University Shanghai 200072 China Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai 200072 China

Segmentation of moving object in a video sequence is one of the difficult problems in video processing. Moreover, multiple objects segmenting and extracting is more challenging task due to the complexity of multiple motion. This paper presents a novel multiple object segmentation approach based on spatial-temporal curve evolution. First, According to the characteristic of the intra-frame and inter-frame (spatial and temporal) information, a joint energy model is proposed with global and local features, thus, a curve evolution equation could be achieved based on the method of level set. Then, after an initial object model is achieved with a simplified method using the difference between two successive frames, multiple object are tracked and extracted with spatio-temporal curve evolution. Finally, while the occlusion is emerged due to multiple object overlapping motion, the covered/uncovered object could be segmented using motion field template matching. The experiment results show that the approach is effective. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Template matching

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Low-voltage and high-stability p-type doped blue organic light-emitting diodes with bilayer hole injection layers

Low-voltage and high-stability p-type doped blue organic lig...

引用

2010 8th International Vacuum Electron Sources Conference and NANOcarbon(第八届真空电子源和纳米碳国际会议)

作者： F.F.Yu H.Zhang J.N.Yu L.Long L.Lu J.H.Zhang B.Wei Key Laboratory of Advanced Display and System Application Ministry of EducationShanghai University Key Laboratory of Advanced Display and System Application Ministry of Education Shanghai Universit

@@In recent years, organic light-emitting diodes (OLEDs) for the application of flat panel displays (FPDs) have been attracting many researchers. Blue OLEDs are the potential light source to make full color FPDs by color conversion method. However, due to a large energy bandgap of blue emission materials, blue OLEDs were widely reported to have relatively low luminance efficiencies and high operation voltage, compared to the devices with low energy emission wavelength.

关键词： Indium tin oxide

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Eco-friendly and degradable red phosphorus nanoparticles for rapid microbial sterilization under visible light

引用

Journal of Materials Science & Technology 2021年第8期67卷 70-79页

作者： Qian Wu Xiangmei Liu Bo Li Lei Tan Yong Han Zhaoyang Li Yanqin Liang Zhenduo Cui Shengli Zhu Shuilin Wu Yufeng Zheng Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei Key Laboratory of Polymer MaterialsSchool of Materials Science&EngineeringHubei UniversityWuhan 430062China State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering.Xi'an Jiaotong UniversityXi'an710049China School of Materials Science&Engineering the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of ChinaTianjin UniversityTianjin 300072China State Key Laboratory for Turbulence and Complex System and Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing 100871China

Pathogens pose a serious challenge to environmental sanitation and a threat to public *** frequent use of chemicals for sterilization in recent years has not only caused secondary damage to the environment but also increased pathogen resistance to drugs,which further threatens public *** address this issue,the use of non-chemical antibacterial means has become a new trend for environmental *** this study,we developed red phosphorus nanoparticles(RPNPs),a safe and degradable photosensitive material with good photocatalytic and photothermal *** red phosphorus nanoparticles were prepared using a template method and *** the irradiation of simulated sunlight for 20 min,the RPNPs exhibited an efficiency of 99.98%in killing Staphylococcus aureus due to their excellent photocatalytic and photothermal *** electron microscopy and ultraviolet–visible spectroscopy revealed that the RPNPs exhibited degradability within eight *** the RPNPs and their degradation products were nontoxic to fibroblast ***,such RPNPs are expected to be used as a new type of low-cost,efficient,degradable,biocompatible,and eco-friendly photosensitive material for environmental disinfection.

关键词： Antibacterial Photocatalytic Photothermal Red phosphorus Photosensitive Nanoparticles

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Highly efficient yellow OLED using phosphorescent and fluorescent dopants

Highly efficient yellow OLED using phosphorescent and fluore...

引用

作者： Wang, X.R. Tang, H. Ding, G.H. You, H. Ma, D.G. Tian, H. Sun, R.G. Key Laboratory of Advanced Displays and System Application Shanghai University Jiading Shanghai 201800 China Key Laboratory of Advanced Materials Institute of Fine Chemicals East China University of Science and Technology Shanghai 200237 China Changchun Institute of Applied Chemistry Chinese Academy of Sciences Graduate School of the Chinese Academy of Sciences Changchun Jilin 130022 China

ISBN: (纸本)9787561752289

The efficiencies of an organic light-emitting diode (OLED) using tris-(8-hydroxy-quinoline) aluminum (Alq3) as host and tetraphenylnapthacene (Rubrene) as yellow dopant were greatly increased by adding a small amount (0.3 wt% ) of a phosphorescent Ir compound Iridium(III)bis(3-(2-benzothiazolyl)-7-(diethylamino)-2H-l-benzopyran-2-onato- N′, C4) (acetyl acetonate) (Ir(C6)2(acac) )sensitizer. The device had a simple structure of indium tin oxide (ITO)/4, 4′, 4″- tris(N-(2-naphthyl)-N-phenyl-amino) triphenylamine (T-NATA) (40 nm)/N, N′-bis (1-naphthyl)-N, N′-diphenyl-l, l′-biphenyl4, 4′-diamine (NPB) (40 nm)/Alq3: Rubrene (0. 7 wt% ): Ir(C6) 2 (acac) (0.3 wt% ) (40 nm)/Alq3 (40 nm)/ LiF (1 nm)/ Al (120 nm), and the current efficiencies of this device keep a high value of 13.9 cd/A, even the luminance rising to 37 000 cd/m2. The Commission International d'Eclairage (CIE) coordinates x and y are 0.46, 0. 44 of yellow color. The high efficiency at the high luminance was proposed due to the phosphorescent Ir(C6)2(acac) can harvest the singlet and triplet excitons formed in Alq3 and then efficiently transfer to yellow dopant Rubrene.

关键词： Fluorescence

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Uncalibrated Camera Vision Pointing Recognition for HCI

Uncalibrated Camera Vision Pointing Recognition for HCI

引用

IEEE International Conference on Computational Science and Engineering, CSE

作者： Ye-Peng Guan School of Communication and Information Engineering Shanghai University China Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai China

Among gestures in non-verbal communication, pointing gesture can be taken as one of natural human computer interfaces. Vision based hand pointing is an optimal model for human-computer interaction (HCI). One of key problems among the vision based pointing gesture is how to recognize the pointing. Aiming at some limits existing in the literature, a novel method is developed to estimate pointing gestures based on some non-calibrated cameras. Multiple un-calibrated cameras are adopted to determine the pointing target based on pointing features extracted from multiple cameras and support vector machine (SVM) classifier. No explicit constraints are set on the cameras placement. Pointing user can move freely inside a wider interaction environment while pointing at some targets. The mentioned approach does not constrain the pointing surface whether is flat or not, or the target is visible by the cameras. Edge detection based on multi-scale wavelet transformation is used to extract pointing objects from a clutter background. Experiments have shown that the developed approach is efficient for pointing recognition by comparisons.

关键词： Cameras Support vector machines Image segmentation Human computer interaction Kernel Feature extraction Training

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Single camera vision pointing recognition for natural HCI

Single camera vision pointing recognition for natural HCI

引用

IET International Communication Conference on Wireless Mobile and Computing (CCWMC 2009)

作者： Ye-Peng Guan Hui-Jun Xiong Yun-Jie Yu School of Communication and Information Engineering Shanghai University China Key Laboratory of Advanced Displays and System Application Ministry of Education Shanghai China

A novel method is proposed to analyze pointing recognition based on a single un-calibrated camera. Face skin information is explicitly adopted as view quality in selecting the best view from multiple cameras. View measurement has been developed to overcome the effects from camera view directions and the distances between the user and the camera. No explicit constraints are set on the camera placement. Pointing users can move freely inside a wider interaction environment while pointing at some targets. The mentioned model does not constrain whether the pointing surface is flat or not. Experiments have highlighted that the proposed method is efficient and the performance of pointing recognition from the optimal viewpoint camera outperforms other cameras.

关键词：

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