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2020 42nd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE


2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)

Technical presentations will range from the fundamental physics of electron emission and modulated electron beams to the design and operation of devices at UHF to THz frequencies, theory and computational tool development, active and passive components, systems, and supporting technologies.System developers will find that IVEC provides a unique snapshot of the current state-of-the-art in vacuum electron devices. These devices continue to provide unmatched power and performance for advanced electromagnetic systems, particularly in the challenging frequency regimes of millimeter-wave and THz electronics.Plenary talks will provide insights into the history, the broad spectrum of fundamental physics, the scientific issues, and the technological applications driving the current directions in vacuum electronics research.


2020 IEEE International Conference on Plasma Science (ICOPS)

IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.


2020 IEEE International Conference on Robotics and Automation (ICRA)

The International Conference on Robotics and Automation (ICRA) is the IEEE Robotics and Automation Society’s biggest conference and one of the leading international forums for robotics researchers to present their work.


2020 IEEE International Magnetic Conference (INTERMAG)

INTERMAG is the premier conference on all aspects of applied magnetism and provides a range of oral and poster presentations, invited talks and symposia, a tutorial session, and exhibits reviewing the latest developments in magnetism.


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Periodicals related to Dip coating

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Advanced Packaging, IEEE Transactions on

The IEEE Transactions on Advanced Packaging has its focus on the modeling, design, and analysis of advanced electronic, photonic, sensors, and MEMS packaging.


Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Components and Packaging Technologies, IEEE Transactions on

Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.


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Xplore Articles related to Dip coating

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Silver doped YBCO coated conductor development by sol-gel process

IEEE Transactions on Applied Superconductivity, 2003

The nonfluorinated YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) coated conductors with 1-3 wt%Ag have been fabricated by sol-gel process. Ag doped YBCO films were fabricated on CeO/sub 2//YSZ/CeO/sub 2/ buffer layered Ni tapes by continuous sol-gel dip coating process. Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) analysis were used to characterize the YBCO coated conductor. The superconducting properties (T/sub c/ ...


Micro-tribological characteristics of PFPE Zdol lubricant coated on silicon

APMRC 2004 Asia-Pacific Magnetic Recording Conference, 2004., 2004

The reliability problem is crucial in micro-systems. In order to increase the reliability and durability, new lubrication is needed since conventional lubricant cannot be used in the micro-system. In this work, the fundamental tribological characteristics of perfluoropolyether (PFPE) Fomblin Zdol lubricants with different thickness coated on silicon by dip coating method were investigated. The Zdol lubricant was characterized by ellipsometry, ...


The selectivity of quartz crystal microbalance gas sensor coated with TiO2-porphyrin nanocomposite thin films towards volatile organic compounds

2008 IEEE International Conference on Semiconductor Electronics, 2008

High and broad selectivity is among the important properties to fabricate a good gas sensor system. We had fabricated gas sensor by coating QCM with highly selective sensing elements. Many researches have been conducted using variety of sensing elements to fulfill these criteria and porphyrin has become among the potential candidates. This paper reports the use of TiO2-porphyrin nanocomposite as ...


Synthesis and photoelectrical properties of zinc phthalocyanine-bisphenol A epoxy derivative

2009 Asia Communications and Photonics conference and Exhibition (ACP), 2009

A novel soluble zinc phthalocyanine-bisphenol A epoxy derivative (ZnPc-DGEBPA) was synthesized and characterized by infrared (IR), electronic absorption spectra and fluorescence spectra. Electronic absorption spectrum of ZnPc- DGEBPA exhibited characteristic absorption peaks at 367 nm and 710 nm. Fluorescence emission peak was at 458 nm and quantum yield reached 0.33 in N, N-dimethylformamide (DMF). ZnPc-DGEBPA thin films were prepared by ...


P1J-1 Optimized Piezoelectric Sol-Gel Composite Films for High Frequency Ultrasonic Transducers

2007 IEEE Ultrasonics Symposium Proceedings, 2007

High frequency piezoelectric films were prepared using the composite sol-gel technique, by mixing PZT sol and laboratory-made powders, free-cracked thick films were deposited by dip-coating on silicon, alumina and porous PZT substrates. Only 3 composite layers and few final infiltrations were used to prepare 40 mum thick films. Reproducible electromechanical properties, i.e. thickness coupling coefficients around 40%, were obtained after ...


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  • Silver doped YBCO coated conductor development by sol-gel process

    The nonfluorinated YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) coated conductors with 1-3 wt%Ag have been fabricated by sol-gel process. Ag doped YBCO films were fabricated on CeO/sub 2//YSZ/CeO/sub 2/ buffer layered Ni tapes by continuous sol-gel dip coating process. Scanning Electron Microscopy (SEM) and X-ray diffraction (XRD) analysis were used to characterize the YBCO coated conductor. The superconducting properties (T/sub c/ and J/sub c/) of Ag doped YBCO coated conductors were found to be higher than those of the un-doped conductors. The Ag doped YBCO has a T/sub c,zero/ of 88 K and J/sub c/ of 1.0/spl times/10/sup 5/ A/cm/sup 2/.

  • Micro-tribological characteristics of PFPE Zdol lubricant coated on silicon

    The reliability problem is crucial in micro-systems. In order to increase the reliability and durability, new lubrication is needed since conventional lubricant cannot be used in the micro-system. In this work, the fundamental tribological characteristics of perfluoropolyether (PFPE) Fomblin Zdol lubricants with different thickness coated on silicon by dip coating method were investigated. The Zdol lubricant was characterized by ellipsometry, contact angle measurement, X-ray photoelectron spectroscopy (XPS), and atomic force microscope (AFM). Especially, characteristics of unbonded Zdol films were compared with that of bonded Zdol films from the view point of stiction and friction. As a result, optimum thickness of unbonded as well as bonded Zdol film was proposed. Also, it was found that the Zdol films with only bonded fraction had lower stiction/friction coefficient than the Zdol film with unbonded and bonded fraction

  • The selectivity of quartz crystal microbalance gas sensor coated with TiO2-porphyrin nanocomposite thin films towards volatile organic compounds

    High and broad selectivity is among the important properties to fabricate a good gas sensor system. We had fabricated gas sensor by coating QCM with highly selective sensing elements. Many researches have been conducted using variety of sensing elements to fulfill these criteria and porphyrin has become among the potential candidates. This paper reports the use of TiO2-porphyrin nanocomposite as sensing element to detect ethanol, 2-propanol, acetone, cyclohexane, toluene and o-xylene vapors. Eight TiO2-porphyrin nanocomposite thin films were prepared via dip coating method. The sensing sensitivity was based on the change in the fundamental frequency of the QCM. It was observed that all the thin films have good selectivity properties towards these gases. From the results, it shows that the metal centre of the porphyrins and ligand plays a key role on the selectivity of the sensor.

  • Synthesis and photoelectrical properties of zinc phthalocyanine-bisphenol A epoxy derivative

    A novel soluble zinc phthalocyanine-bisphenol A epoxy derivative (ZnPc-DGEBPA) was synthesized and characterized by infrared (IR), electronic absorption spectra and fluorescence spectra. Electronic absorption spectrum of ZnPc- DGEBPA exhibited characteristic absorption peaks at 367 nm and 710 nm. Fluorescence emission peak was at 458 nm and quantum yield reached 0.33 in N, N-dimethylformamide (DMF). ZnPc-DGEBPA thin films were prepared by dip-coating technology. Current-voltage characteristics of the films were measured and photoconductivity was increased by an order of magnitude compared with dark conductivity, which indicates the product has excellent film forming ability and good photoelectric response.

  • P1J-1 Optimized Piezoelectric Sol-Gel Composite Films for High Frequency Ultrasonic Transducers

    High frequency piezoelectric films were prepared using the composite sol-gel technique, by mixing PZT sol and laboratory-made powders, free-cracked thick films were deposited by dip-coating on silicon, alumina and porous PZT substrates. Only 3 composite layers and few final infiltrations were used to prepare 40 mum thick films. Reproducible electromechanical properties, i.e. thickness coupling coefficients around 40%, were obtained after a poling at 15V mum in an oil bath at 170degC. A pulse echo response was measured with a 35 mum thick film deposited on a porous PZT substrate. The corresponding characteristics are an axial resolution of 45 mum (with a bandwidth at 80*%) at -6dB and a center frequency of 20 MHz. These results showed that the composite sol-gel process is a good candidate to produce piezoelectric films with a thickness of few tens of microns with a minimization of fabrication steps.

  • Tribological implications of solvents in dip-coating lubrication of thin film magnetic disks

    In this paper, we show that for ultra thin lubricant films (/spl sim/2 nm) the solvent used in dip-coating of thin film magnetic disks may have a significant effect on the tribological performance of the disk. Two solvents are used in this study. A large difference in CSS performance at 80% humidity is found between using the two solvents. The solvent effect (evaporation, diffusion and adsorption) is believed to determine how lubricant molecules are deposited onto disk surfaces causing different microstructure or conformation of deposited lubricant films during the coating process. This point is further supported by contact angle measurements which show significant different values of DI water on lubricated disk surfaces between using different solvents for the coating of the disks.

  • Lead zirconate titanate thick films by sol-gel method for piezoelectric applications

    Lead zirconate titanate (PZT) films were fabricated by a sol-gel method. The sol was prepared using Ti(O/sup i/Pr)/sub 4/, Pb(OAc)/sub 2//spl middot/3H/sub 2/O, Zr(O/sup n/Bu)/sub 4/, and diethanolamine (DEA) with a molar ratio of DEA/(Ti+Zr)=1. They were dissolved in isopropanol solvent. The concentrations of the sol were about 1.5 and 0.4 mol/L with compositions of Pb/sub x/(Ti/sub 0.5/Zr/sub 0.5/)O/sub 3/, (x = 1.1 and 1.3). The substrate used was Si wafer sputtered with Pt as an electrode. The deposition was conducted by a dip- coating procedure. After deposition and drying at 110/spl deg/C, the substrate was heated at 700/spl deg/C for 30min to crystallize perovskite phase. This coating-drying-heating cycle was repeated several times to obtain a thick PZT film. The fabricated films was about 7 /spl mu/m thick by eight depositions and consisted of the first three thin layers (90 nm each) and five to eight thick layers (1.2 /spl mu/m each). The dielectric constant of the films was about 400 and tan/spl delta/ was about 0.01 at 1 kHz. The films exhibited typical ferroelectric P-E hysteresis curve and the remanent polarization and coercive force were 29.7 /spl mu/C/cm/sup 2/ and 69.7 kV/cm, respectively. The admittance measurement of the poled thick film exhibited clear resonance and antiresonance peaks. The piezoelectric displacement was measured by a laser interferometer and the piezoelectric constant, d/sub 33/, was calculated as 430 to 550 pm/V.

  • Fabrication and Characterization of Superconducting Probe Coil for High-Sensitivity NMR Spectroscopy

    A solenoidal-shaped superconducting probe coil for taking NMR measurements was fabricated using Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>x</sub> (Bi-2212), and then its quality factor was evaluated. The Bi-2212 probe coil was fabricated by dip-coating process. The quality factor values were <i>Q</i> = 5960-8820 (4.2 K, 0 T) in a frequency range of 400-600 MHz. These values were 2.3-2.5 times higher than those for a normal metal probe coil under the same measurement set up. In addition, the Bi-2212 probe coil maintained its superiority over a normal metal one even in a magnetic field up to 7 T. The measurement sensitivity of NMR depends on the quality factor of the probe coil. Therefore, the present experimental results obtained using the superconducting Bi-2212 probe coil are promising for taking high-sensitivity NMR measurements.

  • Silica membrane reactors for hydrogen production from water gas shift

    This paper presents an analysis of membrane reactor (MR) operation and design for enhanced hydrogen production from the water gas shift (WGS) reaction. It has been established that membrane reactors can enhance an equilibrium limited reaction through product separation. However, the detailed effects of reactor setup, membrane configuration and catalyst volume have yet to be properly analysed for this reaction. This paper investigates new ideas for membrane reactors such as the development of new catalytic films, for improved interaction between the reaction and separation zones. Current membrane reactors utilise a packed bed of catalyst within the membrane tube, utilising a large volume of catalyst to drive reaction. This is still inefficient and provides only limited benefits over conventional WGS reactors. New reactor configurations look to optimise the interactive effects between reaction and separation to provide improved operation. In this paper, thin film catalysts were produced using dip coating and spray coating techniques. This technique produced catalyst coatings with good thickness, though the abrasion strength of the dip coated catalyst was quite low. The catalyst was tested in a packed bed reactor for temperature activity at low temperatures and catalyst activity at varying levels of excess water

  • Low AC loss Nb3Sn tape for transmission line applications

    A process for modifying the surface topography of Nb3Sn tapes so as to achieve low ac losses has been further developed by experimental operation at pilot plant scale. Diffusion process Nb3Sn tapes are treated by etching followed by hot dip coating with tin. Problems involved in control of the etch process and the Nb3Sn input have been studied for the purpose of optimizing the product superconductor with respect to minimum losses in combination with high values of critical current. Performance capability has been demonstrated by processing a group of four tapes totaling about 3,000 feet. The average ac loss for the group, as determined from measurements at each end of each tape, is at the target specification: 10 μW/cm2(500 rms A/cm, 60 Hz, 4.2 K, unclad). The target specification for critical current was also met.



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