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IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)

作者： J. R. Morales F. A. Uribe Division of Electronics and Computer State University of Guadalajara Guadalajara Mexico Graduate Program in Electrical Engineering State University of Guadalajara Guadalajara Mexico

A recently investigation of the series solution presented by Wedepohl et al., in 1973, yields a new hybrid technique for calculating Z G of buried cables. An enhanced hybrid technique partly analytic-numeric is used in this paper to assess the behavior of other important techniques for calculating ground-return impedances of underground power cables. The accuracy of the here proposed technique is comparable to the Wedepohl series solution, hypergeometric confluent functions, numerical integration modified method and an image based closed-form approximation.

关键词： Underground power cables Hybrid power systems Impedance Mathematical model Frequency dependence

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Bioinspired optical antennas: gold plant viruses

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Light(Science & Applications) 2015年第1期4卷 447-453页

作者： SoonGweon Hong Mi Yeon Lee Andrew O Jackson Luke P Lee Department of Bioengineering University of California at BerkeleyBerkeleyCA 94720USA Berkeley Sensor and Actuator Center University of California at BerkeleyBerkeleyCA 94720USA Department of Plant&Microbial Biology University of California at BerkeleyBerkeleyCA 94720USA Department of Electrical Engineering and Computer Sciences University of California at BerkeleyBerkeleyCA 94720USA Biophysics Graduate Program University of California at BerkeleyBerkeleyCA 94720USA

The ability to capture the chemical signatures of biomolecules(i.e.,electron-transfer dynamics)in living cells will provide an entirely new perspective on biology and *** can be accomplished using nanoscale optical antennas that can collect,resonate and focus light from outside the cell and emit molecular ***,we describe biologically inspired nanoscale optical antennas that utilize the unique topologies of plant viruses(and thus,are called gold plant viruses)for molecular fingerprint *** electromagnetic calculations for these gold viruses indicate that capsid morphologies permit high amplification of optical scattering energy compared to a smooth *** experimental measurements of various gold viruses based on four different plant viruses,we observe highly enhanced optical cross-sections and the modulation of the resonance wavelength depending on the viral ***,in label-free molecular imaging,we successfully obtain higher sensitivity(by a factor of up to 10^(6))than can be achieved using similar-sized *** virtue of the inherent functionalities of capsids and the plasmonic characteristics of the gold layer,a gold virus-based antenna will enable cellular targeting,imaging and drug delivery.

关键词： molecular sensor nanophotonics optical antenna optical spectroscopy plant virus plasmonics plasmonic resonant energy transfer(PRET) surface enhanced Raman scattering(SERS)

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Lattice vibration modes in type-II superlattice InAs/GaSb with no-common-atom interface and overlapping vibration spectra

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Physical Review B 2015年第23期91卷 235317-235317页

作者： Henan Liu Naili Yue Yong Zhang Pengfei Qiao Daniel Zuo Ben Kesler Shun Lien Chuang Jae-Hyun Ryou James D. Justice Russell Dupuis Optical Science and Engineering Graduate Program University of North Carolina at Charlotte Charlotte North Carolina USA Department of Electrical and Computer Engineering University of North Carolina at Charlotte Charlotte North Carolina USA Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Champaign Illinois USA Center for Compound Semiconductors and School of Electrical and Computer Engineering Georgia Institute of Technology Atlanta Georgia USA

Heterostructures like InAs/GaSb superlattices (SLs) are distinctly different from well-studied ones like GaAs/AlAs SLs in terms of band alignment, common interface atom, and phonon spectrum overlapping of the constituents, which manifests as stark differences in their electronic and vibrational properties. This paper reports a comprehensive examination of all four types of phonon modes (confined, quasiconfined, extended, and interface) that have long been predicted for the InAs/GaSb SL, with the observation and interpretation of a set of phonon modes by performing cleaved edge μ-Raman study with polarization analysis. Furthermore, we show a signature of symmetry reduction from D2d for GaAs/AlAs SL to C2v for InAs/GaSb SL revealed as a phonon-polariton effect.

关键词： SUPERLATTICES HETEROJUNCTIONS VIBRATIONAL spectra PHONON spectra RAMAN spectroscopy

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Proceedings of the 16th Annual UT-KBRIN Bioinformatics Summit 2016: bioinformatics

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BMC Bioinformatics 2017年第9期18卷 1-9页

作者： Eric C. Rouchka Juw Won Park Julia H. Chariker David A. Tieri Shreedharkumar Rajurkar Vikas Singh Nishchal K. Verma Yan Cui Mark Farman Bradford Condon Jolanta Jaromczyk Neil Moore Jerzy Jaromczyk Daniel Harris Patrick Calie Eun Kyong Shin Robert L. Davis Arash Shaban-Nejad Joshua M. Mitchell Hunter N. B. Moseley Robert M. Flight Qing Jun Wang Richard M. Higashi Teresa W-M Fan Andrew N. Lane Liangqun Lu Bernie J Daigle Jr. Xi Chen Andrey Smelter Jerzy W. Jaromczyk Bailey K. Phan Nathaniel J. Serpico Ethan G. Toney Li Chen Caroline E. Melton Jennifer R. Mandel Bernie J. Daigle Jr. Hao Chen Kazi I. Zaman Ramin Homayouni Patrick J. Trainor Andrew P. DeFilippis Samantha M. Carlisle Shesh N. Rai Department of Computer Engineering and Computer Science University of Louisville Duthie Center for Engineering Louisville KY 40292 USA Kentucky Biomedical Research Infrastructure (KBRIN) Bioinformatics Core 522 East Gray Street Louisville KY 40292 USA Department of Psychological and Brain Sciences University of Louisville Louisville KY 40292 USA Department of Anatomical Sciences and Neurobiology University of Louisville Louisville KY 40292 USA Department of Electrical Engineering IIT Kanpur India Department of Microbiology Immunology and Biochemistry University of Tennessee Health Science Center Memphis TN 38103 USA Center for Integrative and Translational Genomics University of Tennessee Health Science Center Memphis TN 38103 USA Department of Plant Pathology University of Kentucky Lexington KY 40546 USA UK Healthcare Genomics University of Kentucky Lexington KY 40536 USA Department of Entomology & Plant Pathology University of Tennessee Knoxville TN 37996 USA Department of Forestry University of Kentucky Lexington KY 40506 USA Department of Computer Science University of Kentucky Lexington KY 40506 USA Department of Computer Science University of Kentucky Lexington KY 40508 USA Department of Biological Sciences Eastern Kentucky University Richmond KY 40475 USA University of Tennessee Health Science Center – Oak-Ridge National Lab (UTHSC-ORNL) Center for Biomedical Informatics Department of Pediatrics Memphis TN 38103 USA Department of Molecular & Cellular Biochemistry University of Kentucky Lexington KY 40536 USA Markey Cancer Center University of Kentucky Lexington KY 40536 USA Center for Environmental and Systems Biochemistry University of Kentucky Lexington KY 40536 USA Institute for Biomedical Informatics University of Kentucky Lexington KY 40536 USA Department of Molecular and Cellular Biochemistry University of Kentucky Lexington KY 40536 USA Department of Statistics University of Kentucky Louisville KY

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Are folksonomies shared conceptualizations?

Are folksonomies shared conceptualizations?

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International Conference on computer Supported Cooperative Work in Design

作者： Josiane M. Pinheiro Cesar A. Tacla Emerson Cabrera Paraiso Graduate Prog. in Electrical and Computer Engineering Federal Technological University of Parana Curitiba-Pr Brazil Graduate Program in Informatics Pontificia Universidade Catolica do Parana Curitiba-Pr Brazil

This article presents a method to assess whether folksonomies are useful shared conceptualizations for conceptual modeling. A method based on the tripartite model (actors, concepts and instances) induces from social applications a folksonomy related to a domain of knowledge. The hypothesis of this paper is that if folksonomies are shared conceptualizations, then using them in conceptual modeling should reduce the number of divergences between actors when they elicit terms to be part of a model (a concept map in this article). A controlled experiment of conceptual modeling was performed with experimental groups who received tags inducted from data of categorizations from Delicious and control groups who received terms extracted from Web pages categorized on Delicious. The results show that the experimental groups obtained less divergences (on average) in elicitation of terms when compared to control groups.

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TH-AB-209-12: Tissue Equivalent Phantom with Excised Human Tissue for Assessing Clinical Capabilities of Coherent Scatter Imaging Applications

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Medical Physics 2016年第6PART44期43卷 3866-3866页

作者： K Albanese R Morris J Spencer J Greenberg A Kapadia Medical Physics Graduate Program Duke University Durham NC Dept. of Electrical and Computer Engineering Duke University Durham NC Carl E Ravin Advanced Imaging Laboratories Durham NC

Purpose: Previously we reported the development of anthropomorphic tissue-equivalent scatter phantoms of the human breast. Here we present the first results from the scatter imaging of the tissue equivalent breast phantoms for breast cancer diagnosis. Methods: A breast phantom was designed to assess the capability of coded aperture coherent x-ray scatter imaging to classify different types of breast tissue (adipose, fibroglandular, tumor). The phantom geometry was obtained from a prone breast geometry scanned on a dedicated breast CT system. The phantom was 3D printed using the segmented DICOM breast CT data. The 3D breast phantom was filled with lard (as a surrogate for adipose tissue) and scanned in different geometries alongside excised human breast tissues (obtained from lumpectomy and mastectomy procedures). The raw data were reconstructed using a model-based reconstruction algorithm and yielded the location and form factor (i.e., momentum transfer (q) spectrum) of the materials that were imaged. The measured material form factors were then compared to the ground truth measurements acquired by x-ray diffraction (XRD) imaging. Results: Our scatter imaging system was able to define the location and composition of the various materials and tissues within the phantom. Cancerous breast tissue was detected and classified through automated spectral matching and an 86% correlation threshold. The total scan time for the sample was approximately 10 minutes and approaches workflow times for clinical use in intra-operative or other diagnostic tasks. Conclusion: This work demonstrates the first results from an anthropomorphic tissue equivalent scatter phantom to characterize a coherent scatter imaging system. The functionality of the system shows promise in applications such as intra-operative margin detection or virtual biopsy in the diagnosis of breast cancer. Future work includes using additional patient-derived tissues (e.g., human fat), and modeling additional organs (

关键词： X-ray scattering Medical X-ray imaging Cancer Coherence imaging Medical image reconstruction Tissue diagnostics Coded aperture imaging Computed tomography

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Stochastic unit commitment in a distribution system with photovoltaic power: Empirical assessment

Stochastic unit commitment in a distribution system with pho...

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International Conference on Environment and electrical engineering (EEEIC)

作者： Thaís F. Araújo Wadaed Uturbey Luis G. Monteiro Le Xie Graduate Program in Electrical Engineering Federal University of Minas Gerais Belo Horizonte MG Brazil Electrical Engineering Department Federal University of Minas Gerais Belo Horizonte MG Brazil Department of Electrical and Computer Engineering Texas A&M University College Station Texas

ISBN: (纸本)9781479979943

This paper proposes an economic dispatch strategy to accommodate photovoltaic (PV) generation, using the solar radiation historical data. The stochastic scenario based economic dispatch approach is formulated in the context of a power system with photovoltaic generators. The stochastic nature of PV power is represented through scenarios. The strategy proposed addresses the improvement of system ability to maintain the power balance while minimizing the management costs of power system. The benefits of this approach are illustrated using a modified version of the IEEE 30-bus test system. The results obtained show that the proposed model is appropriated to accommodate the estimation error of PV generation, while providing economic benefits.

关键词： Generators Stochastic processes Production Solar radiation Power systems Predictive models Economics

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Smartphone spectrophotometer for point-of-care diagnostics in low-resource settings

Smartphone spectrophotometer for point-of-care diagnostics i...

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IEEE Region 10 Humanitarian Technology Conference (R10-HTC)

作者： Supriti Gupta Hwee Choo Liaw Prahlad Vadakkepat C. Frank Starmer Engineering Design and Innovation Centre National University of Singapore Dept. Electrical and Computer Engineering National University of Singapore Cardiovascular and Metabolic Disorders Program Duke NUS Graduate Medical School

Colorimetry based point-of-care diagnostics provide an inexpensive technique for healthcare and environmental monitoring during disaster relief operations. Conventional equipments for measuring colorimetric assays are bulky and expensive, making them unsuitable for usage in low-resource settings. This paper proposes a novel approach for taking colorimetric measurements using a miniaturized spectrophotometer prototype attached to a smartphone. The proposed frugal design is portable, easy-to-use and costs less than US$15. High dynamic range imaging is used to process the spectrums captured by smartphone camera. The proposed algorithm supports JPEG image format, allowing the prototype to be used with a wide variety of smartphone models. In the experimental study, spectrums of color dye and milk samples are imaged. Spectrums obtained are found to be well correlated with the sample color and concentration. By providing accurate and fast measurements, smartphone spectrophotometry enables effective application of colorimetric diagnostic techniques in low-resource settings.

关键词： Cameras Prototypes Dairy products Heuristic algorithms Image color analysis Dynamic range

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Message

Message

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Conference on Advances in Signal Processing (CASP)

作者： Shri Promoad Gorhe Pradeep K. Sinha Madhuri A. Joshi M. B. Khambete Prachi Mukherji James L Garrison Pramod Kale Hemant A. Patil Aditya Abhyankar Arnab Das Maharshi Karve Stree Shikshan Samstha New Raipur University FIET (U.K.) FIE (I) FIETE (I) IET Pune Local Network College of Engineering Pune CCEW General Chair CASP-2016 (E&TC) CCEW Co Chair CASP-2016 Aeronautics and Astronautics Electrical and Computer Engineering (by courtesy) Ecological Sciences & Engineering Interdisciplinary Graduate Program Purdue University USA ICIT Pvt. Ltd. Pune Former Director ISRO DA-IICT Gandhinagar Gujarat State Faculty of Technology University of Pune Department of Technology University of Pune Acoustic Research Lab of the Tropical Marine Science Institute at the National University of Singapore Retd. Electrical Officer Indian Navy (1994 - 2015) Adjunct Faculty at IIT Delhi and DIAT Pune

Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.

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Vibration Measurement of Induction Motor Under Dynamic Eccentricity Using Optical Fiber Bragg Grating Sensors

Vibration Measurement of Induction Motor Under Dynamic Eccen...

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SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference

作者： Kleiton de Morais Sousa Uilian Jose Dreyer Cicero Martelli Jean Carlos Cardozo da Silva Federal University of Technology - Parana Graduate Program in Electrical and Computer Engineering

ISBN: (纸本)9781467394932

The vibration in Three-Phase Induction Motors (TIM) is due to mechanical and electrical forces existing during the motor operation. Vibration problems in induction motors can be extremely frustrating and may lead to greatly reduced reliability increasing the maintenance cost. The vibration was measured using fiber Bragg gratings (FBG) installed inside the motor between two stator teeth. The vibration frequencies in TIM are predicted using a model of the forces present in the air gap considering a static and dynamic rotor eccentricity. Two FBGs were positioned between two stator teeth, separated by 120° from each other. The analysis of the vibration spectrum at 60 Hz motor power supply presents the frequencies 60 Hz, 120 Hz, 180 Hz and 240 Hz. This combination of the mechanical and electrical frequencies continue to appear even when the motor electrical supply frequency is reduced by half. The measurement present in this paper can be used to determine some TIM parameters, like the effect of the motor power supply on its vibration signal and also be used like a potential maintenance tool for predictive purposes with high efficiency to continuously monitor the TIM.

关键词： Induction motors Fiber Bragg gratings Motor eccentricity Vibration measurement

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