Conferences related to Conductivity

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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/PES Transmission and Distribution Conference and Exposition (T&D)

Bi-Annual IEEE PES T&D conference. Largest T&D conference in North America.


Oceans 2020 MTS/IEEE GULF COAST

To promote awareness, understanding, advancement and application of ocean engineering and marine technology. This includes all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.

  • OCEANS 2018 MTS/IEEE Charleston

    Ocean, coastal, and atmospheric science and technology advances and applications

  • OCEANS 2017 - Anchorage

    Papers on ocean technology, exhibits from ocean equipment and service suppliers, student posters and student poster competition, tutorials on ocean technology, workshops and town meetings on policy and governmental process.

  • OCEANS 2016

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 500 technical papers and 150 -200 exhibits.

  • OCEANS 2015

    The Marine Technology Scociety and the Oceanic Engineering Society of the IEEE cosponor a joint annual conference and exposition on ocean science, engineering, and policy. The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2014

    The OCEANS conference covers four days. One day for tutorials and three for approx. 450 technical papers and 150-200 exhibits.

  • OCEANS 2013

    Three days of 8-10 tracks of technical sessions (400-450 papers) and concurent exhibition (150-250 exhibitors)

  • OCEANS 2012

    Ocean related technology. Tutorials and three days of technical sessions and exhibits. 8-12 parallel technical tracks.

  • OCEANS 2011

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2010

    The Marine Technology Society and the Oceanic Engineering Scociety of the IEEE cosponsor a joint annual conference and exposition on ocean science engineering, and policy.

  • OCEANS 2009

  • OCEANS 2008

    The Marine Technology Society (MTS) and the Oceanic Engineering Society (OES) of the Institute of Electrical and Electronic Engineers (IEEE) cosponsor a joint conference and exposition on ocean science, engineering, education, and policy. Held annually in the fall, it has become a focal point for the ocean and marine community to meet, learn, and exhibit products and services. The conference includes technical sessions, workshops, student poster sessions, job fairs, tutorials and a large exhibit.

  • OCEANS 2007

  • OCEANS 2006

  • OCEANS 2005

  • OCEANS 2004

  • OCEANS 2003

  • OCEANS 2002

  • OCEANS 2001

  • OCEANS 2000

  • OCEANS '99

  • OCEANS '98

  • OCEANS '97

  • OCEANS '96


2019 21st European Conference on Power Electronics and Applications (EPE '19 ECCE Europe)

Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

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


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Periodicals related to Conductivity

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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 Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


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 Conductivity

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Concept for simultaneous measurement of Seebeck coefficient, electrical conductivity and thermal conductivity

29th Conference on Precision Electromagnetic Measurements (CPEM 2014), 2014

Measurements of physical transport properties of thermoelectric materials are plagued by large uncertainties (of tens of percent). Development of new materials towards larger efficiency in converting heat into electrical energy would benefit from improved measurement reliability. We are proposing to extend the 3ω method for the simultaneous measurement of the Seebeck coefficient, electrical conductivity and thermal conductivity using test structures ...


Study on electrical properties and thermal conductivity of carbon nanotube/epoxy resin nanocomposites with different filler aspect ratios

2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE), 2016

Multi-walled carbon nanotube/epoxy resin (MWCNT/EP) composites with filler contents from 0.03wt% to 0.5wt.% and two different aspect ratios are prepared by solution blended process. Carbon nanotubes are dispersed by sonication and high speed shear force. The impact of aspect ratio on electric and thermal conductivity of nanocomposites has been studied. Experiment results illustrate that percolation threshold of electrical conductivity decreases ...


Investigation of design parameters of 1-dimensional thermal conductivity measurement system for shortening measurement time of thermal conductivity by steady-temperature-prediction-method(STPM)

2018 International Conference on Electronics Packaging and iMAPS All Asia Conference (ICEP-IAAC), 2018

This paper describes a development of fast thermal conductivity measurement system based on 1-dimensional thermal conductivity measurement by steady state method. In order to avoid thermal problems around power devices with high heat dissipation density, a reduction of thermal contact resistance is strongly needed while maintaining electrical insulation performance. A novel thermal interface material (TIM), which has both high electrical ...


Magneto-acousto-electrical Measurement Based Electrical Conductivity Reconstruction for Tissues

IEEE Transactions on Biomedical Engineering, 2018

Objective: Based on the interaction of ultrasonic excitation and magnetoelectrical induction, magneto-acousto-electrical (MAE) technology was demonstrated to have the capability of differentiating conductivity variations along the acoustic transmission. By applying the characteristics of the MAE voltage, a simplified algorithm of MAE measurement based conductivity reconstruction was developed. Methods: With the analyses of acoustic vibration, ultrasound propagation, Hall effect, and magnetoelectrical ...


Frequency-Dependent Conductivity Contrast for Tissue Characterization Using a Dual-Frequency Range Conductivity Mapping Magnetic Resonance Method

IEEE Transactions on Medical Imaging, 2015

Electrical conductivities of biological tissues show frequency-dependent behaviors, and these values at different frequencies may provide clinically useful diagnostic information. MR-based tissue property mapping techniques such as magnetic resonance electrical impedance tomography (MREIT) and magnetic resonance electrical property tomography (MREPT) are widely used and provide unique conductivity contrast information over different frequency ranges. Recently, a new method for data acquisition ...


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Educational Resources on Conductivity

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IEEE-USA E-Books

  • Concept for simultaneous measurement of Seebeck coefficient, electrical conductivity and thermal conductivity

    Measurements of physical transport properties of thermoelectric materials are plagued by large uncertainties (of tens of percent). Development of new materials towards larger efficiency in converting heat into electrical energy would benefit from improved measurement reliability. We are proposing to extend the 3ω method for the simultaneous measurement of the Seebeck coefficient, electrical conductivity and thermal conductivity using test structures fabricated directly on the sample surface. Assisted by numerical simulations the method could allow reliable characterization of anisotropic materials.

  • Study on electrical properties and thermal conductivity of carbon nanotube/epoxy resin nanocomposites with different filler aspect ratios

    Multi-walled carbon nanotube/epoxy resin (MWCNT/EP) composites with filler contents from 0.03wt% to 0.5wt.% and two different aspect ratios are prepared by solution blended process. Carbon nanotubes are dispersed by sonication and high speed shear force. The impact of aspect ratio on electric and thermal conductivity of nanocomposites has been studied. Experiment results illustrate that percolation threshold of electrical conductivity decreases with the increase of aspect ratio of carbon nanotube and the lowest percolation threshold is about 0.05wt.%. Strong nonlinear DC electrical conductivity behavior caused by field emission is observed. Both the increase of aspect ratio and approach of percolation threshold increases the nonlinearity. With the increase of filler content, AC conductivity is less dependent on frequency. Thermal conductivity of nanocomposites increases with filler content. The increase of aspect ratio is also positive to improve thermal conductivity. The thermal conductivity of nanocomposite with 0.5wt.% filler content and highest aspect ratio is about 26% higher than that of neat epoxy.

  • Investigation of design parameters of 1-dimensional thermal conductivity measurement system for shortening measurement time of thermal conductivity by steady-temperature-prediction-method(STPM)

    This paper describes a development of fast thermal conductivity measurement system based on 1-dimensional thermal conductivity measurement by steady state method. In order to avoid thermal problems around power devices with high heat dissipation density, a reduction of thermal contact resistance is strongly needed while maintaining electrical insulation performance. A novel thermal interface material (TIM), which has both high electrical insulation performance and high thermal conductivity has been developed. However, in order to optimize the composition of the TIMs, a lot of parameter survey has to be performed. In order to shorten the design period of the TIMs, an improvement of thermal conductivity measurement should be needed in order to shorten the measurement time. We are developing the fast thermal conductivity measurement method based on the 1 dimensional measurement method with the steady state method and Steady - Temperature - Prediction Method (STPM). In this method, the steady temperature at the steady state condition in the 1-dimensional measurement is predicted by the transient temperature history and thermal conductivity is calculated. We have clarified the effectiveness of STPM on the fast measurement of thermal conductivity. However, in order to achieve both shortening the measurement time and the accuracy of the measurement, an optimization of the design parameters around the measurement apparatus should be investigated. From these background, in this paper, we investigated transient heat transfer process around the 1-dimensional thermal conductivity measurement system while changing the design parameter of the apparatus. Then, the relationship between the design parameter and the measurement of thermal conductivity by STPM was evaluated.

  • Magneto-acousto-electrical Measurement Based Electrical Conductivity Reconstruction for Tissues

    Objective: Based on the interaction of ultrasonic excitation and magnetoelectrical induction, magneto-acousto-electrical (MAE) technology was demonstrated to have the capability of differentiating conductivity variations along the acoustic transmission. By applying the characteristics of the MAE voltage, a simplified algorithm of MAE measurement based conductivity reconstruction was developed. Methods: With the analyses of acoustic vibration, ultrasound propagation, Hall effect, and magnetoelectrical induction, theoretical and experimental studies of MAE measurement and conductivity reconstruction were performed. The formula of MAE voltage was derived and simplified for the transducer with strong directivity. MAE voltage was simulated for a three-layer gel phantom and the conductivity distribution was reconstructed using the modified Wiener inverse filter and Hilbert transform, which was also verified by experimental measurements. Results: The experimental results are basically consistent with the simulations, and demonstrate that the wave packets of MAE voltage are generated at tissue interfaces with the amplitudes and vibration polarities representing the values and directions of conductivity variations. With the proposed algorithm, the amplitude and polarity of conductivity gradient can be restored and the conductivity distribution can also be reconstructed accurately. Conclusion: The favorable results demonstrate the feasibility of accurate conductivity reconstruction with improved spatial resolution using MAE measurement for tissues with conductivity variations, especially suitable for nondispersive tissues with abrupt conductivity changes. Significance: This study demonstrates that the MAE measurement based conductivity reconstruction algorithm can be applied as a new strategy for nondestructive real-time monitoring of conductivity variations in biomedical engineering.

  • Frequency-Dependent Conductivity Contrast for Tissue Characterization Using a Dual-Frequency Range Conductivity Mapping Magnetic Resonance Method

    Electrical conductivities of biological tissues show frequency-dependent behaviors, and these values at different frequencies may provide clinically useful diagnostic information. MR-based tissue property mapping techniques such as magnetic resonance electrical impedance tomography (MREIT) and magnetic resonance electrical property tomography (MREPT) are widely used and provide unique conductivity contrast information over different frequency ranges. Recently, a new method for data acquisition and reconstruction for low- and high-frequency conductivity images from a single MR scan was proposed. In this study, we applied this simultaneous dual-frequency range conductivity mapping MR method to evaluate its utility in a designed phantom and two in vivo animal disease models. Magnetic flux density and B1+phase map for dual-frequency conductivity images were acquired using a modified spin- echo pulse sequence. Low-frequency conductivity was reconstructed from MREIT data by the projected current density method, while high-frequency conductivity was reconstructed from MREPT data by B1+mapping. Two different conductivity phantoms comprising varying ion concentrations separated by insulating films with or without holes were used to study the contrast mechanism of the frequency-dependent conductivities related to ion concentration and mobility. Canine brain abscess and ischemia were used as in vivo models to evaluate the capability of the proposed method to identify new electrical properties-based contrast at two different frequencies. The simultaneous dual-frequency range conductivity mapping MR method provides unique contrast information related to the concentration and mobility of ions inside tissues. This method has potential to monitor dynamic changes of the state of disease.

  • Contactless Conductivity Measurement for ITO Nanolayers on AsGa Substrats Over a Wide Frequency Range

    We report on the application of a new contactless method based on eddy currents with a view to characterizing some transport properties of a large range of semiconductors. The innovative approach of this work consists in measuring the impedance of the coil by reflectometry using a broadband multicarrier test signal. The device works well with silicon wafers with a constant conductivity over a wide frequency range. Because of their electrical conductivity and high optical transmittance in the visible and near-IR regions of electromagnetic spectrum, indium tin oxide (ITO) films have motivated great interests in experimental studies and technological applications. The estimation of their electrical conductivity is a key point to develop these devices. On this paper we show that the setup can be used for the frequency characterization of ITO and AsGa nanolayers wich exhibit a frequency dependent behavior. The low frequency measurement are found in agreement with the classical four point probe setup.

  • Study on characteristics of the ionospheric conductivity in the polar region

    Based on the theory of ionospheric conductivity and the international reference ionosphere model (IRI-2007), the Pedersen and Hall conductivity change in different phases of the solar cycle during quiet geomagnetic activity was discussed. Meanwhile, because the International Reference Ionosphere model does not reflect the polar ionospheric conductivity very well during the geomagnetic storm. So applied the average energy and the energy flux of the precipitating electrons, the relation between the conductivity and the average energy and the energy flux of the precipitating particles under different energy spectrum function and the geomagnetic activity was analyzed. The results show that the variation of the ionosphric conductivity is good consistent with the change of the field-aligned currents in the polar region, and at the same time, it influenced by the solar activity and the geomagnetic substorm.

  • Electrical Conductivity Measurements via a Low-Voltage Conductivity Channel

    The electrical conductivity in combustion gases with four different compositions (2% potassium with 0%, 10%, 15%, and 20% aluminum by mass added to a hydrocarbon fuel burned in gaseous oxygen) was determined experimentally using conductivity channels with two geometrical configurations, one with a constant bore and one with a tapered bore. Electrical conductivity for these conditions was calculated using the MACH2 numerical code, augmented with a transport property code. The fluid- mechanical conditions in the flow streams were also calculated using the axisymmetric and 1-D (NASA CEA) nozzle flow codes, both of which used the same transport property code to calculate the electrical conductivity. In the laboratory conductivity channel experiments, relatively low applied voltages were chosen to avoid unnecessary electrical heating of the test gas which might possibly have distorted the results. Results indicate that the measured conductivity increased linearly from approximately 10 mhos/m to 20 mhos/m as the aluminum was increased from 0% to 25% by mass. The results presented here differ markedly from those reported in shock tube experiments. The numerical simulation of the constant bore channel underpredicted the experiment within 15% and underpredicted the tapered-bore channel within 30%. The sources of uncertainties are addressed and provide some measure of confidence in the quality of the results. This is the first reported measurement of electrical conductivity values in the combustion products of a quasi-steady flow as a function of composition, together with the validation of these values with a 2-D computation.

  • The physics of conductivity at terahertz frequencies

    Effective terahertz (THz) component and systems design requires accurate predictive models for the frequency-dependent conductivity of materials. We have measured the THz conductivity of metals (including rough surface effects) and doped silicon at 0.4 - 0.85 THz. After a comprehensive analysis, we conclude that the THz-regime conductivity of highly-doped Si is accurately described by Drude theory, while metal conductivity is accurately described by a combination of measured DC conductivity, Drude theory, and the Hammerstad- Bekkadal formula.

  • A novel thick-film screen printed electrical conductivity sensor for measurement of liquid and soil conductivity

    Results are reported from an initial evaluation of a novel conductivity sensor that has been incorporated onto a multi-element thick film sensor array designed for soil and water analysis. The new sensor exhibits a more repeatable cell constant of approximately 0.15 cm<sup>-1</sup> over a wider range of conductivities compared with conductivity sensor designs previously employed in the sensor array. The new sensor is currently performing very well in an investigation of soil structural properties where its output is being correlated with soil water content in a study of different soil porosities.



Standards related to Conductivity

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Guide for In-Service Use, Care, Maintenance and Testing of Conductive Clothing for Use on Voltages up to 765 kV AC and 750 kV DC

This guide provides recommendations for the in-service visual inspection, use, care, maintenance, and electrical testing of conductive clothing, including suits, gloves, socks, and boots, for use during linework on voltages up to 765 kV ac and ±750 kV dc. Testing pertains only to nondestructive electrical tests that can be performed periodically to check if there is any reduction in the ...


IEEE Recommended Practice for Determining the Peak Spatial-Average Specific Absorption Rate (SAR) in the Human Head from Wireless Communications Devices: Measurement Techniques

To specify protocols for the measurement of the peak spatial-average specific absorption rate (SAR) in a simplified model of the head of users of hand-held radio transceivers used for personal wireless communications services and intended to be operated while held next to the ear. It applies to contemporary and future devices with the same or similar operational characteristics as contemporary ...


IEEE Recommended Practice for Measurements and Computations of Radio Frequency Electromagnetic Fields With Respect to Human Exposure to Such Fields, 100 kHz-300 GHz

Revise and develop specifications for preferred methods for measuring and computing external radiofrequency electromagnetic fields to which persons may be exposed. In addition, the document will specify preferred methods for the measurement and computation of the resulting fields and currents that are induced in bodies of humans exposed to these fields over the frequency range of 100 kHz to 300 ...


IEEE Standard for Safety Levels With Respect to Human Exposure to Electromagnetic Fields, 0-3 kHz

Develop safety levels for human exposure to electromagnetic fields from 0 to 3kHz. This standard will be based on the results of an evaluation of the relevant scientific literature and proven effects which are well established and for which thresholds of reaction are understood. Field limits will be derived from threshold current densities or internal electric fields.


IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz

Recommendations are made to protect against established adverse health effects in human beings associated with exposure to electric, magnetic and electromagnetic fields in the frequency range of 3 kHz to 300 GHz. The recommendations are expressed in terms of basic restrictions (BRs) and maximum permissible exposure (MPE) values. The BRs are limits on internal fields, specific absorption rate (SAR), and ...


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Jobs related to Conductivity

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