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Author Correction: Federated learning enables big data for rare cancer boundary detection

Nature communications 2023年第1期14卷 436页

作者： Sarthak Pati Ujjwal Baid Brandon Edwards Micah Sheller Shih-Han Wang G Anthony Reina Patrick Foley Alexey Gruzdev Deepthi Karkada Christos Davatzikos Chiharu Sako Satyam Ghodasara Michel Bilello Suyash Mohan Philipp Vollmuth Gianluca Brugnara Chandrakanth J Preetha Felix Sahm Klaus Maier-Hein Maximilian Zenk Martin Bendszus Wolfgang Wick Evan Calabrese Jeffrey Rudie Javier Villanueva-Meyer Soonmee Cha Madhura Ingalhalikar Manali Jadhav Umang Pandey Jitender Saini John Garrett Matthew Larson Robert Jeraj Stuart Currie Russell Frood Kavi Fatania Raymond Y Huang Ken Chang Carmen Balaña Jaume Capellades Josep Puig Johannes Trenkler Josef Pichler Georg Necker Andreas Haunschmidt Stephan Meckel Gaurav Shukla Spencer Liem Gregory S Alexander Joseph Lombardo Joshua D Palmer Adam E Flanders Adam P Dicker Haris I Sair Craig K Jones Archana Venkataraman Meirui Jiang Tiffany Y So Cheng Chen Pheng Ann Heng Qi Dou Michal Kozubek Filip Lux Jan Michálek Petr Matula Miloš Keřkovský Tereza Kopřivová Marek Dostál Václav Vybíhal Michael A Vogelbaum J Ross Mitchell Joaquim Farinhas Joseph A Maldjian Chandan Ganesh Bangalore Yogananda Marco C Pinho Divya Reddy James Holcomb Benjamin C Wagner Benjamin M Ellingson Timothy F Cloughesy Catalina Raymond Talia Oughourlian Akifumi Hagiwara Chencai Wang Minh-Son To Sargam Bhardwaj Chee Chong Marc Agzarian Alexandre Xavier Falcão Samuel B Martins Bernardo C A Teixeira Flávia Sprenger David Menotti Diego R Lucio Pamela LaMontagne Daniel Marcus Benedikt Wiestler Florian Kofler Ivan Ezhov Marie Metz Rajan Jain Matthew Lee Yvonne W Lui Richard McKinley Johannes Slotboom Piotr Radojewski Raphael Meier Roland Wiest Derrick Murcia Eric Fu Rourke Haas John Thompson David Ryan Ormond Chaitra Badve Andrew E Sloan Vachan Vadmal Kristin Waite Rivka R Colen Linmin Pei Murat Ak Ashok Srinivasan J Rajiv Bapuraj Arvind Rao Nicholas Wang Ota Yoshiaki Toshio Moritani Sevcan Turk Joonsang Lee Snehal Prabhudesai Fanny Morón Jacob Mandel Konstantinos Kamnitsas Ben Glocker Luke V M Dixon Matthew Williams Peter Zamp Center for Biomedical Image Computing and Analytics (CBICA) University of Pennsylvania Philadelphia PA USA. Department of Radiology Perelman School of Medicine University of Pennsylvania Philadelphia PA USA. Department of Pathology and Laboratory Medicine Perelman School of Medicine University of Pennsylvania Philadelphia PA USA. Department of Informatics Technical University of Munich Munich Bavaria Germany. Intel Corporation Santa Clara CA USA. Department of Neuroradiology Heidelberg University Hospital Heidelberg Germany. Clinical Cooperation Unit Neuropathology German Cancer Consortium (DKTK) within the German Cancer Research Center (DKFZ) Heidelberg Germany. Department of Neuropathology Heidelberg University Hospital Heidelberg Germany. Division of Medical Image Computing German Cancer Research Center Heidelberg Germany. Pattern Analysis and Learning Group Department of Radiation Oncology Heidelberg University Hospital Heidelberg Germany. Neurology Clinic Heidelberg University Hospital Heidelberg Germany. Department of Radiology & Biomedical Imaging University of California San Francisco San Francisco CA USA. Symbiosis Center for Medical Image Analysis Symbiosis International University Pune Maharashtra India. Department of Neuroimaging and Interventional Radiology National Institute of Mental Health and Neurosciences Bangalore Karnataka India. Department of Radiology School of Medicine and Public Health University of Wisconsin Madison WI USA. Department of Medical Physics School of Medicine and Public Health University of Wisconsin Madison WI USA. Leeds Teaching Hospitals Trust Department of Radiology Leeds UK. Department of Radiology Brigham and Women's Hospital Harvard Medical School Boston MA USA. Athinoula A. Martinos Center for Biomedical Imaging Massachusetts General Hospital Charlestown MA USA. Catalan Institute of Oncology Badalona Spain. Consorci MAR Parc de Salut de Barcelona Catalonia Spain. Department of Radiology (IDI

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Dielectric cross-shaped resonator based metasurface for vortex beam generation in Mid-IR and THz wavelengths

arXiv

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arXiv 2019年

作者： Dharmavarapu, Raghu Izumi, Ken-Ichi Katayama, Ikufumi Ng, Soon Hock Vongsvivut, Jitraporn Tobin, Mark J. Kuchmizhak, Aleksandr Nishijima, Yoshiaki Bhattacharya, Shanti Juodkazis, Saulius Department of Electrical Engineering Indian Institute of Technology Madras Chennai600036 India Centre for Micro-Photonics Faculty of Science Engineering and Technology Swinburne University of Technology HawthornVIC3122 Australia Melbourne Centre for Nanofabrication ANFF 151 Wellington Road ClaytonVIC3168 Australia Physics Department Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama240-8501 Japan Infrared Microspectroscopy Beamline Australian Synchrotron ClaytonVIC3168 Australia Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok690041 Russia Far Eastern Federal University Vladivostok690090 Russia Department of Electrical and Computer Engineering Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama240-8501 Japan Institute of Advanced Sciences Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama240-8501 Japan School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo152-8550 Japan

Metasurfaces are engineered thin surfaces comprising two dimensional (2D) arrays of sub-wavelength spaced and sub-wavelength sized resonators. Metasurfaces can locally manipulate the amplitude, phase and polarization of light with high spatial resolution. In this study, we report numerical and experimental results of a vortex-beam-generating metasurface fabricated specifically for infrared (IR) and terahertz (THz) wavelengths. The designed metasurface consisted of a 2D array of dielectric cross-shaped resonators with spatially varying length, thereby providing desired spatially varying phase shift to the incident light. The metasurface was found to be insensitive to polarization of incident light. The dimensions of the cross-resonators were calculated using rigorous finite difference time domain (FDTD) analysis. The spectral scalability via physical scaling of meta resonators was demonstrated using two vortex generating optical elements operating at 8.8 μm (IR) and 0.78 THz (Terahertz). The vortex beam generated in the mid-IR spectral range was imaged using FTIR imaging miscroscope equipped with a focal plane array (FPA) detector. This design could be used for efficient wavefront shaping as well as various optical imaging applications in mid-IR spectral range, where polarization insensitivity is desired. Copyright © 2019, The Authors. All rights reserved.

关键词： Resonators

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Design and analysis of analog filters by statistical methods

Design and analysis of analog filters by statistical methods

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2018 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2018

作者： Rocha, Fabiano Sanches Biajo, Vitor Henrique Madureira De Oliveira Mota, Hilton Maia, Carlos Andrey Vasconcelos, Flávio Henrique Graduate Program in Electrical Engineering Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 Belo Horizonte MG31270-901 Brazil Undergraduate Electrical Engineering Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 Belo Horizonte MG31270-901 Brazil Department of Electrical Engineering Universidade Federal de Minas Gerais Av. Antônio Carlos 6627 Belo Horizonte MG31270-901 Brazil

ISBN: (纸本)9781538622223

Analog filters are widely used in measurement systems to dissociate signal from noise. However, when designing these or other electronics whose components will be assembled in an industrial process, one should consider that resistors, capacitors, operational amplifiers and other discrete items may not arises on the circuit boards with their nominal values taken from the color code or other plain sources. Keeping this in mind, it is important to consider a range of component possible values produced by the manufacturing process, in order to evaluate the behavior of some electronic devices. In this work, the intention was to investigate circuits such as low-pass filters employing the Monte Carlo method in order to figure out the influence of component values, taken now by their expected values, coverage interval and other statistics obtained from the probability density function, over some important circuit parameters like gain, sensitivity, etc. The results indicate that passband, stopband and cutoff are influenced differently due to capacitor and resistor tolerance. © 2018 IEEE.

关键词： Monte Carlo methods

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Stretchable Electronics: Biaxially Stretchable Ultrathin Si Enabled by Serpentine Structures on Prestrained Elastomers (Adv. Mater. Technol. 1/2019)

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Advanced Materials Technologies 2019年第1期4卷

作者： Kyoseung Sim Yuhang Li Jizhou Song Cunjiang Yu Materials Science and Engineering Program University of Houston Houston TX 77204 USA Institute of Solid Mechanics Beihang University Beijing 100191 China Department of Engineering Mechanics Soft Matter Research Center and Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Zhejiang University Hangzhou Zhejiang 310027 China Department of Mechanical Engineering Department of Electrical and Computer Engineering Department of Biomedical Engineering Materials Science and Engineering Program Texas Center for Superconductivity at the University of Houston University of Houston Houston TX 77204 USA

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Active ISFET sensor readout circuit

Active ISFET sensor readout circuit

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International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)

作者： Luciano Lourenço Furtado da Silva Felipe Silveira Carlos Augusto de Moraes Cruz Thiago Daniel de Oliveira Moura Graduate Program in Electrical Engineering - Department of Electronics and Computation Federal University of Amazonas Manaus AM Brazil Federal Institute of Amazonas Manaus AM Brazil Graduate Program in Electrical Engineering - Department of Electrical Engineering - Federal University of Minas Gerais Belo Horizonte MG Brazil

An improved readout circuit interface for ion-sensitive field-effect transistor (ISFET) is proposed in this work. When compared with conventional topologies found on the literature, the proposed ISFET readout circuit presents at least two advantages. The first concerns the simplicity of the new circuity topology, and the second is the additional gain conferred to the sensor output signal. The performance of the proposed readout circuit integrated with the electrical ISFET model was investigated through BSIM3v3 simulations. The conventional ISFET readout topologies are found not to confer gain to the electrical ISFET output signal, and the sensor output signal has its limit predicted by the Nernst s model. Simulation results shows that the proposed ISFET readout circuit topology grants additional gain to the sensor output signal increasing its sensitivity up to three times the Nernst limit.

关键词： Sensitivity Electrodes Integrated circuit modeling Topology Transistors Logic gates Threshold voltage

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DHJ: A database of handwritten Jawi for recognition research

DHJ: A database of handwritten Jawi for recognition research

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International Conference on electrical engineering and Informatics (ICELTICs)

作者： Khairun Saddami Khairul Munadi Yuwaldi Away Fitri Arnia Postgraduate Program in Engineering Department of Electrical and Computer Engineering Syiah Kuala University Banda Aceh Indonesia

This paper proposes a database of handwritten Jawi (DHJ) for conducting the research in this area. Previously, a printed Jawi dataset has been proposed and this handwritten dataset is aim to extend the dataset collection in Jawi database. The DHJ database contains handwritten Jawi character, handwritten Jawi word, and handwritten Jawi sentence. This dataset was recorded from ten writers with different age, gender, and educational background. The participants were asked to fill a form, which had three parts: character part, word part, and sentence part. The DHJ was stored in jpeg digital image format and each of image has three different sizes. Totally, we have 3,810 handwritten Jawi characters, 300 handwritten Jawi words, and 40 handwritten Jawi sentences.

关键词： Databases Character recognition Handwriting recognition electrical engineering Informatics Digital images Writing

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Light‐Emitting Transistors: Multioperation‐Mode Light‐Emitting Field‐Effect Transistors Based on van der Waals Heterostructure (Adv. Mater. 43/2020)

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Advanced Materials 2020年第43期32卷

作者： Junyoung Kwon June‐Chul Shin Huije Ryu Jae Yoon Lee Dongjea Seo Kenji Watanabe Takashi Taniguchi Young Duck Kim James Hone Chul‐Ho Lee Gwan‐Hyoung Lee Department of Materials Science and Engineering Yonsei University Seoul 03722 Korea Department of Materials Science and Engineering Seoul National University Seoul 08826 Korea KU‐KIST Graduate School of Converging Science and Technology Korea University Seoul 02841 Korea Department of Electrical and Computer Engineering University of Minnesota Minneapolis Minnesota 55455 USA Research Center for Functional Materials National Institute for Materials Science 1‐1 Namiki Tsukuba 305‐0044 Japan International Center for Materials Nanoarchitectonics National Institute for Materials Science 1‐1 Namiki Tsukuba 305‐0044 Japan Department of Physics Kyung Hee University Seoul 02447 Korea Department of Mechanical Engineering Columbia University New York NY 10027 USA Research Institute of Advanced Materials (RIAM) Institute of Engineering Research Institute of Applied Physics Seoul National University Seoul 08826 Korea

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WAN Optimization to Speed up Data Transfer

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Procedia computer Science 2017年 116卷 45-53页

作者： Benfano Soewito Andy Fergyanto E. Gunawan Melki Sadekh Mansuan Computer Science Department BINUS Graduate Program Bina Nusantara University Jakarta - 11530 Indonesia Industrial Engineering Department BINUS Graduate Program Bina Nusantara University Jakarta - 11530 Indonesia School of Computer Science Bina Nusantara University Jakarta - 11530 Indonesia

Currently the development of digital technology has advanced very rapidly, as well as data storage and data transfer. As the development of information technology and the use of data that increasingly large, it will be a main factor that affects to the company’s business. The amount of data that must be processed both at headquarters and other branch offices make the process of data exchange become the main issue in term of speed and delay. Due to data exchange being a top priority in the company, often the WAN network bandwidth used by the file system, email system, proxy, web system becomes peak or full during peak hours thus slowing down accessing file or email system. One method to reduce bandwidth usage is almost full is to use WAN Optimization tools. WAN Optimization has several functions, including Data Streamlining, Transport Streamlining, and Application Streamlining. The purpose of this study is to analyze performance network when WAN optimization was applied in the system. Data is taken from simulated file transfers conducted several days and at different hours. Data were analyzed using Wireshark tools and calculation formula. The results can be seen if there is a significant increasing performance, delay become better from 287 ms to 0.604 ms for file size 93 MB and jitter increased 12.4% better. It can be concluded that with the optimization of WAN, the process of data transfer becomes more efficient both in bandwidth and time during working hours.

关键词： network optimization WAN optimization data transfer delay bandwidth

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Harmonized-Multinational qEEG norms (HarMNqEEG)

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NEUROIMAGE 2022年 256卷 119190-119190页

作者： Li, Min Wang, Ying Lopez-Naranjo, Carlos Hu, Shiang Reyes, Ronaldo Cesar Garcia Paz-Linares, Deirel Areces-Gonzalez, Ariosky Hamid, Aini Ismafairus Abd Evans, Alan C. Savostyanov, Alexander N. Calzada-Reyes, Ana Villringer, Arno Tobon-Quintero, Carlos A. Garcia-Agustin, Daysi Yao, Dezhong Dong, Li Aubert-Vazquez, Eduardo Reza, Faruque Razzaq, Fuleah Abdul Omar, Hazim Abdullah, Jafri Malin Galler, Janina R. Ochoa-Gomez, John F. Prichep, Leslie S. Galan-Garcia, Lidice Morales-Chacon, Lilia Valdes-Sosa, Mitchell J. Trondle, Marius Zulkifly, Mohd Faizal Mohd Rahman, Muhammad Riddha Bin Abdul Milakhina, Natalya S. Langer, Nicolas Rudych, Pavel Koenig, Thomas Virues-Alba, Trinidad A. Lei, Xu Bringas-Vega, Maria L. Bosch-Bayard, Jorge F. Valdes-Sosa, Pedro Antonio [a]The Clinical Hospital of Chengdu Brain Science Institute MOE Key Lab for Neuroinformation School of Life Science and Technology University of Electronic Science and Technology of China Chengdu China [b]Cuban Center for Neurocience La Habana Cuba [c]McGill Centre for Integrative Neuroscience Ludmer Centre for Neuroinformatics and Mental Health Montreal Neurological Institute Canada [d]Department of Neurosciences School of Medical Sciences Universiti Sains Malaysia Universiti Sains Malaysia Health Campus Kota Bharu Kelantan 16150 Malaysia [e]Brain and Behaviour Cluster School of Medical Sciences Universiti Sains Malaysia Health Campus Kota Bharu Kelantan 16150 Malaysia [f]Hospital Universiti Sains Malaysia Universiti Sains Malaysia Health Campus Kota Bharu Kelantan 16150 Malaysia [g]Humanitarian Institute Novosibirsk State University Novosibirsk 630090 Russia [h]Laboratory of Psychophysiology of Individual Differences Federal State Budgetary Scientific Institution Scientific Research Institute of Neurosciences and Medicine Novosibirsk 630117 Russia [i]Laboratory of Psychological Genetics at the Institute of Cytology and Genetics Siberian Branch of the Russian Academy of Sciences Novosibirsk 630090 Russia [j]University of Pinar del Río “Hermanos Saiz Montes de Oca” Pinar del Río Cuba [k]Department of Neurology Max Planck Institute for Human Cognitive and Brain Sciences Leipzig Germany [l]Department of Cognitive Neurology University Hospital Leipzig Leipzig Germany [m]Center for Stroke Research Charité-Universitätsmedizin Berlin Berlin Germany [n]Grupo Neuropsicología y Conducta - GRUNECO Faculty of Medicine Universidad de Antioquia Colombia [o]Research Department Institución Prestadora de Servicios de Salud IPS Universitaria Colombia [p]The Cuban center aging longevity and health Havana Cuba [q]Research Unit of NeuroInformation Chinese Academy of Medical Sciences Chengdu 2019RU035 China [r]School of Electrical Engineering Zhengzhou University Zhengzhou 4500

This paper extends frequency domain quantitative electroencephalography (qEEG) methods pursuing higher sensitivity to detect Brain Developmental Disorders. Prior qEEG work lacked integration of cross-spectral information omitting important functional connectivity descriptors. Lack of geographical diversity precluded accounting for site-specific variance, increasing qEEG nuisance variance. We ameliorate these weaknesses. (i) Create lifespan Riemannian multinational qEEG norms for cross-spectral tensors. These norms result from the HarMNqEEG project fostered by the Global Brain Consortium. We calculate the norms with data from 9 countries, 12 devices, and 14 studies, including 1564 subjects. Instead of raw data, only anonymized metadata and EEG cross spectral tensors were shared. After visual and automatic quality control, developmental equations for the mean and standard deviation of qEEG traditional and Riemannian DPs were calculated using additive mixed-effects models. We demonstrate qEEG "batch effects " and provide methods to calculate harmonized z-scores. (ii) We also show that harmonized Riemannian norms produce z-scores with increased diagnostic accuracy predicting brain dysfunction produced by malnutrition in the first year of life and detecting COVID induced brain dysfunction. (iii) We offer open code and data to calculate different individual z-scores from the HarMNqEEG dataset. These results contribute to developing bias-free, low-cost neuroimaging technologies applicable in various health settings.

关键词： Quantitative EEG EEG cross-spectrum Riemannian geometry Batch effects Z-score Harmonization Malnutrition Covid induced brain dysfunction Developmental Brain Chart

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Effect of (CoxFe1−x)80B20 Composition on the Magnetic Properties of the Free Layer in Double-Barrier Magnetic Tunnel Junctions

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Physical Review Applied 2018年第2期10卷 024031-024031页

作者： Shalabh Srivastava Andy Paul Chen Tanmay Dutta Rajagopalan Ramaswamy Jaesung Son Mohammad S. M. Saifullah Kazutaka Yamane Kangho Lee Kie-Leong Teo Yuan Ping Feng Hyunsoo Yang Department of Electrical and Computer Engineering National University of Singapore Singapore 117576 Department of Physics National University of Singapore 2 Science Drive 3 Singapore 117542 NUS Graduate School of Integrative Sciences and Engineering National University of Singapore 28 Medical Drive Singapore 117456 Singapore GLOBALFOUNDARIES Singapore Pte. Ltd. 60 Woodlands Industrial Park D Street 2 Singapore 738406 Institute of Materials Research and Engineering A*STAR (Agency for Science Technology and Research) 2 Fusionopolis Way #08-03 Innovis Singapore 138634

The alloy Co−Fe−B finds extensive application in spintronics, and in particular the perpendicular magnetic anisotropy characteristic of Co−Fe−B−MgO systems is of great interest. While some efforts have been made to examine the effect of composition on magnetic properties of Co−Fe−B materials, the magnetic-property–composition relationship for the Co−Fe−B−MgO system is still not fully understood. Therefore, it is fundamentally and practically important to understand the Co−Fe−B composition dependence of the magnetic properties of Co−Fe−B−MgO systems. This work focuses on the data-storing free layer of double-barrier magnetic tunnel junctions with perpendicular magnetic anisotropy (PMTJs), which include (CoxFe1−x)80B20 ultrathin films sandwiched between two MgO layers and a W insert layer. We study magnetic properties of various (CoxFe1−x)80B20 compositions at different annealing conditions and find x ∼ 35% to have the highest anisotropy energy to ensure high thermal stability, while maintaining the lowest Gilbert damping parameter which is essential to achieve a low critical switching current. This composition also shows the highest thermal stability at elevated temperatures. In addition, we perform first-principle calculations to explain the anomalous composition trends of the magnetization and Gilbert damping parameter. Moreover, we find that the conventional Slater-Pauling curve is not applicable, and it is necessary to consider the magnetization’s dependence on the magnetic anisotropy which in turn depends on (CoxFe1−x)80B20 composition and the oxide interface. Our results provide a perspective for a better understanding of metal-oxide systems with desirable properties for DBL PMTJ applications.

关键词： Ferromagnetism Magnetic anisotropy Magnetization switching Spin transfer torque Spintronics Alloys Magnetic tunnel junctions Ferromagnetic resonance

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