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International conference on Communication Systems Software and Middleware (COMSWARE)

作者： S. Hadim N. Mohamed Department of Electrical and Computer Engineering Stevens Institute of Technology Hoboken NJ USA

Given the fast growing technological progress in microelectronics and wireless communication devices, in the near future, it is foreseeable that wireless sensor networks (WSN) will offer and make possible a wide range of applications. However real world integration and application development on such networks composed of tiny, low power and limited resources devices are not easy. Therefore, middleware services are a novel approach offering many possibilities and drastically enhancing the application development on WSN. This survey shows the current state of research in this domain. It discusses middleware challenges in such networks and presents some representative middleware specifically designed for WSN. The selection of the studied methods tries to cover as many views of objectives and approaches as possible. We will focus on discovering similarities and differences by making classifications, comparisons and appropriateness studies. At the end we argue that most of the proposed work is at an early stage and there is still a long way to go before a middleware that fully meets the wide variety of WSN requirements is achieved

关键词： Middleware Wireless sensor networks sensor phenomena and characterization sensor arrays Operating systems Microelectronics Wireless communication Application software Costs Computer architecture

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Overview of field programmable analog arrays as enabling technology for evolvable hardware for high reliability systems

Overview of field programmable analog arrays as enabling tec...

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NASA/DoD Workshop on Evolvable Hardware

作者： J. Plante H. Shaw L. Mickens C. Johnson-Bey Dynamic Range Corporation Office of Parts Packaging and Assembly Technologies NASA Goddard Space Flight Center USA ARCADE Laboratory Morgan State University USA

The recent commercial availability of field programmable analog arrays (FPAAs) is leading designers of high reliability space and ground support systems to consider how these devices can lead to new applications. They hold promises for analog systems that require reactive evolvability such as those that correct defective mechanical deployments. They are also suited to evolving circuits, which change with temporary or degenerative electrical conditions such as those associated with power systems during specific periods of orbit in space flight and with the effects of aging on electronic components. FPAAs are seen as a key enabler to a system in development that will enable circuit development in a hardware environment that can be programmed and tailored for a given system's electrical input/output/load environment.

关键词： Field programmable analog arrays Hardware sensor arrays Space technology NASA Laboratories Availability Circuits Power system management Aerospace electronics

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development of a modal analysis accelerometer based on a tunneling displacement transducer

Development of a modal analysis accelerometer based on a tun...

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International conference on solid state sensors and Actuators (TRANSDUCERS)

作者： P.R. Scheeper J.K. Reynolds T.W. Kenny Brüel and Kjær Sound and Vibration Measurement A S Naerum Denmark Mechanical Engineering Department Design Division University of Stanford USA

An accelerometer based on a tunneling displacement transducer is presented. The sensor is fabricated using silicon micromachining techniques for fabrication of the seismic mass, the suspension beams and the tunneling tip and electrodes. The demonstrated accelerometer shows linear response from 0.2 mg to 20 g (159 Hz), and shows a 1 kHz bandwidth. The electron tunneling accelerometer can be used in applications where both a high dynamic range and a reasonable bandwidth are required.

关键词： Modal analysis Accelerometers Tunneling Bandwidth Transducers Silicon Micromachining Fabrication Electrodes Electrons

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A neural tissue interfacing chip for in-vitro applications with 32k recording / stimulation channels on an active area of 2.6 mm2

A neural tissue interfacing chip for in-vitro applications w...

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European conference on solid-state Circuits (ESSCIRC)

作者： Björn Eversmann Armin Lambacher Thomas Gerling Alexander Kunze Peter Fromherz Roland Thewes Advanced Embedded Control Texas Instruments Germany Freising Germany Max-Planck Institute for Biochemistry Munich Germany Faculty of EE & CS Sensor and Actuator Systems TU Berlin Berlin Germany

A neural tissue interfacing chip for in-vitro applications is presented based on an extended 0.5 μm, 5 V, standard CMOS process. The chip provides 256 × 128 bidirectional recording / stimulation sites on a total active area of 2.28 mm × 1.14 mm, and a fully digital interface. Full frame recording rate is 2.4 kHz. Selection of a subset of sites is possible and translates into higher bandwidth per site accordingly. Electrical and biological results are presented which reveal proper functionality.

关键词： Logic gates Electric potential Dielectrics Voltage measurement Microprocessors sensor arrays

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development of Amperometric Glucose Biosensor Based on Prussian Blue Functionlized TiO₂ Nanotube arrays

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SCIENTIFIC REPORTS 2014年第1期4卷 6891-6891页

作者： Gao, Zhi-Da Qu, Yongfang Li, Tongtong Shrestha, Nabeen K. Song, Yan-Yan Northeastern Univ Coll Sci Shenyang 110004 Peoples R China Nanjing Univ Natl Lab Solid State Microstruct Nanjing 210093 Jiangsu Peoples R China Hanyang Univ Dept Chem Seoul 133791 South Korea

Amperometric biosensors consisting of oxidase and peroxidase have attracted great attention because of their wide application. The current work demonstrates a novel approach to construct an enzymatic biosensor based on TiO2 nanotube arrays (TiNTs) as a supporting electrode on which Prussian Blue (PB)-an "artificial enzyme peroxidase" and enzyme glucose oxidase (GOx) have been immobilized. For this, PB nanocrystals are deposited onto the nanotube wall photocatalytically using the intrinsic photocatalytical property of TiO2, and the GOx/AuNPs nanobiocomposites are subsequently immobilized into the nanotubes via the electrodeposition of polymer. The resulting electrode exhibits a fast response, wide linear range, and good stability for glucose sensing. The sensitivity of the sensor is as high as 248 mA M-1 cm(-2), and the detection limit is about 3.2 mu M. These findings demonstrate a promising strategy to integrate enzymes and TiNTs, which could provide an analytical access to a large group of enzymes for bioelectrochemical applications including biosensors and biofuel cells.

关键词： AMPEROMETRIC sensors BIOsensorS OXIDASES PEROXIDASE PRUSSIAN blue

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Ion-selective Electrode Biochip for applications in a Liquid Environment

Ion-selective Electrode Biochip for Applications in a Liquid...

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International conference for Innovation in Biomedical Engineering and Life Sciences (ICIBEL)

作者： Salim, W. W. A. Wan Hermann, A. C. Zietchek, M. A. Pfluger, J. E. Park, J. H. ul Haque, A. Sanober, F. Porterfield, D. M. Dept Agr & Biol Engn W Lafayette IN USA Birck Nanotechnol Ctr W Lafayette IN USA Bindley Biosci Ctr Physiol Sensing Facil W Lafayette IN USA Purdue Univ Sch Chem Engn W Lafayette IN 47907 USA Cooley LLP Boston MA USA IIUM Kulliyyah Engn Dept Biotechnol Engn Kuala Lumpur Malaysia IIUM Kulliyyah Fac Engn Dept Biotechnol Engn Kuala Lumpur 50728 Malaysia

ISBN: (纸本)9789811002663;9789811002656

Physiological sensing conducted in a liquid environment requires electrodes with long lifetime. The development of a robust ion-selective electrode-based biochip in a lab-on-a-chip platform is described. To compare electrode lifetime, which is driven by the transducer layer, electrochemical measurements were performed in a custom-made flow-cell chamber. The results of potentiometric measurement of cationic analytes demonstrate the electrodes to have a near-Nernstian slope profile even after they are stored for almost a month in liquid medium. The electrodes also achieved H2O2 amperometric sensitivity (1.25 and 3.32 mu AmM(-1)cm(-2) for PEDOT: PSS and PEDOT: CaSO4 respectively) and lower detection limit (2.21 mu M, 8.4 mu M, 3.44 mu M, for H+, NH4+, Ca2+ respectively) comparable to that of wire-type electrodes. Furthermore, the lifetime is dependent on the electrodeposition method of the conductive polymer, and the transducer layer must be modified to fit the analyte types. These results indicate that extended lifetime of microfabricated ion-selective electrodes in a multiplex format can be realized by optimizing the microfabricated electrode surface functionalization.

关键词： electrochemical sensor all-solid-state ion-selective electrode PEDOT lab-on-a-chip

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An intelligent reflective colour sensor system for paper and textile industries

An intelligent reflective colour sensor system for paper and...

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International conference on Sensing Technology, ICST

作者： P Anupama K V Sathees Kumar S Rominus Valsalam G Harikrishnan V Muralidharan Control and Instrumentation Group Centre for Development of Advanced Computing Thiruvananthapuram Kerala India Control and Instrumentation Group Centre for Development of Advanced Computing (CDAC-T) Thiruvananthaouram Kerala India Centre for Development of Advanced Computing Juhu Maharashtra IN Centre for Development of Advanced Computing (CDAC) Hyderabad Andhra Pradesh India

The world is simply less colorful, without the sense of colour. In ordinary life, a difference in colour perception is mostly inconsequential. However, in many industries, the ability to sense colour precisely can be crucial. In this paper, a novel reflective colour sensing system is presented for process monitoring and control applications in paper and textile industries. The system is developed using a solid state RGB sensor and a smart signal processing algorithm implemented on micro-controller architecture. A hybrid neural network comprising Self organizing mapping and Back propagation architecture is used for colour zone classification and exact colour identification of papers. Demonstrator applications and simulation results are discussed to highlight the importance of sensor and accuracy in measurement.

关键词： Color Image color analysis sensors Neurons Artificial neural networks Process control

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development of 100-nm-thick self-sensing nanocantilevers and characterization of the temperature dependence of the piezoresistivity and conductivity

Development of 100-nm-thick self-sensing nanocantilevers and...

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International conference on solid state sensors and Actuators (TRANSDUCERS)

作者： Yonggang Jiang Takahito Ono Masayoshi Esashi Graduate School of Engineering University of Tohoku Sendai Japan The World Premier International Research Center Initiative of Atom Molecule Materials University of Tohoku Sendai Japan

Piezoresistive nanocantilevers are proposed for high-sensitive sensing applications such as thermal detectors, mass sensors, and magnetic resonance force microscopy. This paper describes the development of 100-nm-thick piezoresistive nanocantilevers and characterization of the temperature dependence of the piezoresisitivity and conductivity. The pieozresistive nanocantilevers are fabricated using spin-on diffusion, electron beam lithography, deep reactive ion etching, and XeF 2 vapor-phase etching techniques. A maximum longitudinal piezoresistance coefficient is obtained at 80~90 K. The shallo piezoresistor also exhibits a ldquoquantumrdquo metal-insulator transition phenomenon at a temperature as high as 40 K for the first time, which may prohibit its application at lower temperatures.

关键词： Temperature dependence Piezoresistance Conductivity Thermal force Magnetic force microscopy Etching Detectors Magnetic sensors sensor phenomena and characterization Thermal sensors

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MOF/PDMS Hybrid Nanofilm-based QCM for VOC Selective Virtual Sensing in High-Humidity Environments

MOF/PDMS Hybrid Nanofilm-based QCM for VOC Selective Virtual...

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International conference on solid state sensors and Actuators (TRANSDUCERS)

作者： Mengyao Fu Dongsheng Li Chenyang Gao Jin Xie Dibo Hou Yunqi Cao College of Control Science and Engineering Zhejiang University Hangzhou PR China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou PR China

As one of the most promising gravimetric gas sensors, the quartz crystal microbalance (QCM) sensor can effectively detect volatile organic compounds (VOCs) with high selectivity based on the virtual sensor array (VSA) technique. However, the susceptibility of the chemical sensing material to water molecules limits the applications in high-humidity environments such as urban underground pipeline galleries. Herein, we propose a novel QCM VOC sensor coated with a hydrophobic sensing layer of MOF/PDMS hybrid nanofilm. A modified selective virtual sensing (SVS) technique is also proposed to create high dimensional vectors by combining the resonant signal features and lumped parameters, which can be used to generate distinctive features under various concentrations of 5 different VOCs. Experimental results show that the sensitivity to relative humidity (RH) has been lowered to nearly 25% with the help of the few nanometer-thick PDMS coating. The presented work may enable qualitative and quantitative analysis of VOC compounds in the high RH environment.

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Status of Millimeter Wave Technology and applications in the U.S.

Status of Millimeter Wave Technology and Applications in the...

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European conference on Microwave

作者： James C. Wiltse Georgia Tech Research Institute Georgia Institute of Technology Atlanta GA USA

Recent progress in the millimeter-wave field will be summarized. In the technology area there are significant developments in HEMT solid-state oscillators and in passive component development. In the past several years there have been major investigations of atmospheric effects (scintillation and angle-of-arrival, backscattering from snow or rain, and other phenomena). These results have been collected in a special journal issue. In the subsystem area there also have been several new developments for use in radar and communications. In general, systems applications are occurring in satellite or air-to-air communications, missile/projectile terminal guidance, airborne synthetic aperture radar, and satellite or airborne radiometric imaging (remote sensing) and radio astronomy. Some major programs will be described, including the EHF MILSTAR satellite communications project, the Multiple Launch Rocket System (MLRS) terminal seeker, the Sense and Destroy Armor (SADARM) sensor-fused munitions, the Lincoln Laboratory synthetic aperture radar, the Longbow tactical missile system, the millimeter wave Maverick missile seeker, the Special sensor Microwave/Imager (SSM/I) satellite radiometers, and the airborne Advanced Microwave Precipitation Radiometer (AMPR).

关键词： Millimeter wave technology Millimeter wave radar Satellite broadcasting Artificial satellites Missiles Radiometers HEMTs solid state circuits Oscillators Atmospheric waves

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