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IEEE Biomedical Circuits and Systems (BIOCAS)

作者： Sujay Hosur Sumanta Kumar Karan Shashank Priya Mehdi Kiani School of Electrical Engineering and Computer Science The Pennsylvania State University University Park PA USA Department of Materials Science and Engineering The Pennsylvania State University University Park PA USA

Wireless power transfer (WPT) to biomedical implants enables their miniaturization to millimeter (mm) scales by removing their battery, which is critical for chronic operation. Ultrasound (US) and magnetoelectric (ME) modalities are both emerging technologies for WPT to mm-sized implants at deep sites (several centimeters) as they enjoy higher regulatory safety limits. In US WPT, the piezoelectric transducer in the implant generates an electric voltage when actuated by US pressure. In ME WPT, the ME transducer composed of a layered magnetostrictive and piezoelectric structure is exposed to low-frequency magnetic field to generate an electric voltage. Since both US and ME transducers operate at acoustic wave resonance, high-performance mm-sized transducers operating at MHz and sub-MHz frequencies are viable. Although US and ME WPT modalities have been studied individually in the literature, there is no comparative study of them for similar conditions. This paper compares the power delivery capabilities of these two modalities using comparable mm-sized receiver transducers of 6.4×2.3×1 mm 3 . In measurements at 30 mm depth, considering the safety limits, the ME and US WPT links could deliver 4.4 mW and 6.25 mW of power in a tissue and water medium, respectively.

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Towards improving detection performance for malware with a correntropy-based deep learning method

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Digital Communications and Networks 2021年第4期7卷 570-579页

作者： Xiong Luo Jianyuan Li Weiping Wang Yang Gao Wenbing Zhao School of Computer and Communication Engineering University of Science and Technology BeijingBeijing100083China Beijing Key Laboratory of Knowledge Engineering for Materials Science Beijing100083China Beijing Intelligent Logistics System Collaborative Innovation Center Beijing101149China China Information Technology Security Evaluation Center Beijing100085China Department of Electrical Engineering and Computer Science Cleveland State UniversityClevelandOH44115USA

With the rapid development of Internet of Things(IoT)technologies,the detection and analysis of malware have become a matter of concern in the industrial application of Cyber-Physical System(CPS)that provides various services using the IoT ***,many advanced machine learning methods such as deep learning are popular in the research of malware detection and analysis,and some achievements have been made so ***,there are also some *** example,considering the noise and outliers in the existing datasets of malware,some methods are not robust ***,the accuracy of malware classification still needs to be *** at this issue,we propose a novel method that combines the correntropy and the deep learning *** our proposed method for malware detection and analysis,given the success of the mixture correntropy as an effective similarity measure in addressing complex datasets with noise,it is therefore incorporated into a popular deep learning model,i.e.,Convolutional Neural Network(CNN),to reconstruct its loss function,with the purpose of further detecting the features of *** present the detailed design process of our ***,the proposed method is tested both on a real-world malware dataset and a popular benchmark dataset to verify its learning performance.

关键词： Malware detection Mixture correntropy Deep learning Convolutional neural network(CNN)

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Modular Platform for Mobile Biosensing with Extended Gate Field-Effect Transistors

Modular Platform for Mobile Biosensing with Extended Gate Fi...

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BioSensors Conference (BioSensors), IEEE

作者： Jack Twiddy Ethan Cove Hayley Richardson Lina Acosta-Perez Mika Hatada Ellie Wilson Koji Sode Spyridon Pavlidis Michael Daniele Joint Department of Biomedical Engineering NC State University and UNC at Chapel Hill Raleigh NC USA Department of Electrical & Computer Engineering NC State University Raleigh NC USA Department of Materials Science and Engineering NC State University Raleigh NC USA

ISBN: (数字)9798350395136

ISBN: (纸本)9798350395143

We present a modular platform for mobile biosensing using an extended gate field-effect transistor architecture. Our device contains transduction hardware for amplifying changes in electrochemical cell potential in an analyte-agnostic manner and can be interfaced with a wide variety of functionalized electrodes for the detection of any analyte for which a suitable recognition element exists. Here, the device is presented and characterized, and its applicability demonstrated using a panel of example electrode systems for the measurement of picomolar concentrations of neuropeptide Y and insulin, as well as variations in pH.

关键词： Electrodes Electric potential Microprocessors computer architecture Logic gates Hardware Biosensors Transistors Insulin

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Intrinsic and Extrinsic Factors Influencing the Dynamics of VO2 Mott Oscillators

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Physical Review Applied 2023年第4期19卷 044028-044028页

作者： Stephanie M. Bohaichuk Suhas Kumar Mahnaz Islam Miguel Muñoz Rojo R. Stanley Williams Gregory Pitner Jaewoo Jeong Mahesh G. Samant Stuart S.P. Parkin Eric Pop Department of Electrical Engineering Stanford University Stanford California USA Sandia National Laboratories Livermore California USA Department of Thermal and Fluid Engineering University of Twente Enschede Netherlands Department of Electrical & Computer Engineering Texas A&M University College Station Texas USA IBM Almaden Research Center San Jose California USA Department of Materials Science and Engineering Stanford University Stanford California USA

Oscillatory devices have recently attracted significant interest as key components of computing systems based on biomimetic neuronal spiking. An understanding of the time scales underlying the spiking is essential for engineering fast, controllable, low-energy devices. However, we find that the intrinsic dynamics of these devices is difficult to properly characterize, as they can be heavily influenced by the external circuitry used to measure them. Here we demonstrate these challenges using a VO2 Mott oscillator with a sub-100-nm effective size, achieved using a nanogap cut in a metallic carbon nanotube electrode. Given the nanoscale thermal volume of this device, it would be expected to exhibit rapid oscillations. However, due to external parasitics present within commonly used current sources, we see orders-of-magnitude slower dynamics. We outline methods for determining when measurements are dominated by extrinsic factors and discuss the operating conditions under which intrinsic oscillation frequencies may be observed.

关键词： Bifurcations Metal-insulator transition Neuronal dynamics Devices Mott insulators Nanotubes Atomic force microscopy Scanning probe microscopy

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Time-dependence of SrVO3 thermionic electron emission properties

arXiv

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arXiv 2023年

作者： Sheikh, Md Sariful Jacobs, Ryan Morgan, Dane Booske, John Department of Materials Science and Engineering University of Wisconsin-Madison MadisonWI53706 United States Department of Electrical Engineering and Computer Science University of Wisconsin-Madison MadisonWI53706 United States

Thermionic electron emission cathodes are critical components of various high power and high frequency vacuum electronic devices, electron microscopes, e-beam lithographic devices, and thermionic energy converters, which all demand an efficient and long-lasting low work function cathode. Single phase, polycrystalline perovskite oxide SrVO3, with its intrinsic low effective work function and facile synthesis process, is a promising cathode candidate, where previous works have shown evidence of an effective work function as low as 2.3 eV. However, assessment of the stability over time under conditions relevant for operation and the related interplay of evolving surface chemistry with emission performance are still missing, and necessary for understanding how to best prepare, process and operate SrVO3 cathodes. In this work, we study the vacuum activation process of SrVO3 and find it has promising emission stability over 15 days of continuous high temperature operation. We find that SrVO3 shows surface Sr and O segregation during operation, which we hypothesize is needed to create a positive surface dipole, leading to low effective work function. Emission repeatability from cyclic heating and cooling suggests the promising stability of the low effective work function surface, and additional observations of drift-free emission during one hour of continuous emission testing at high temperature further demonstrates its excellent performance stability. Copyright © 2023, The Authors. All rights reserved.

关键词： Work function

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Application of 3D Printing and Design in Healthcare: A Focus on Undergraduate Research to Attract Students to Bioengineering and Related Disciplines

Application of 3D Printing and Design in Healthcare: A Focus...

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Frontiers in Education (FIE) Conference

作者： Cindy M. Zelada-Quiroz Brian L. Reyes-Santiago Eduardo I. Ortiz-Rivera Bio-Engineering Graduate Program University of Puerto Rico at Mayagüez Mayagüez PR Department of Computer Science and Engineering University of Puerto Rico at Mayagüez Mayagüez PR Department of Electrical and Computer Engineering University of Puerto Rico at Mayagüez Mayagüez PR

ISBN: (数字)9798350351507

ISBN: (纸本)9798350363067

This research-to-practice paper describes developing and analyzing state-of-the-art smart boots created by combining CAD technology and advanced 3D printing techniques to attract students in bio-engineering and related fields. The primary objective of this innovative immobilization boot is to expedite fracture recovery phases through an ergonomic design to ensure optimal patient comfort during its use. Technological solutions are crucial in aiding the rehabilitation process for fractures caused by falls, heavy lifting, or rotational trauma. However, cost and comfort-related issues persist, underscoring the need for alternative approaches. This research addresses these challenges and delves into the broader implications of fracture treatment, catalyzing future projects and investigations in bioengineering. Additionally, this study serves as an educational tool that sparks the interest of high school and engineering students, promoting multidisciplinary collaboration in innovation. By involving students in specialized courses covering 3D design, human bone anatomy, biology, and materials science, this initiative empowers them to deepen their knowledge and develop new technologies to address bone injury problems. Material analyses include evaluating the type of material depending on the fracture site, such as PLA for printing and cotton and silicone gel for the midsection between the splint and the body. This research aims to advance our understanding of the type of fracture, the methods associated with their treatment, and tissue repair processes during bone callus formation. To summarize, this multidisciplinary approach drives advancements in bio-engineering and related fields, aiming to enhance patient outcomes and inspire students to pursue further research in bio-engineering and related fields. As part of this endeavor, a list of university-level courses based on the experience of the University of Puerto Rico at Mayaguez (UPRM), such as biology, bio-materials, 3D

关键词： Technological innovation materials science and technology Three-dimensional displays Tissue engineering Medical services Three-dimensional printing Bones Mechanical factors Manufacturing Sparks

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Minimization of fanout in switching networks 15

Minimization of fanout in switching networks

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15th Annual Symposium on Switching and Automata Theory, SWAT 1974

作者： Hayes, John P. Department of Electrical Engineering and Computer Science Program University of Southern California Los AngelesCA90007 United States

The problem of finding the minimum amount of fanout needed to realize a switching function f is investigated. Fanout-free functions are defined, and necessary and sufficient conditions for a function to be fanout-free are derived. A measure '(f) called the input fanout index, is introduced which represents the minimum number of input variables that fan out in any realization of f. I is shown that t(f), can be determined from the prime implicants and implicates of f. Another measure of fanout u(f), which is the minimum numbe r of signal lines that must fan out in any network realizing f is defined, and some of the properties of u(f) are examined. © 2021 IEEE. All rights reserved.

关键词： Switching networks

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A Comprehensive Evaluaion of Solar Powered Electric Vehicle Charging Station Design Using Internet of Things

A Comprehensive Evaluaion of Solar Powered Electric Vehicle ...

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Electronics, Communication and Signal Processing (ICECSP), International Conference on

作者： K. Chitra A. Gnanasekar C.N. Ravi Jaisudha J R Ramya P Jithendar Department of Electrical and Electronics Engineering CMR Institute of Technology Bengaluru Karnataka India Department of Computer Science and Engineering R.M.D. Engineering College Chennai Tamil Nadu India Department of Computer Science and Engineering CMR Engineering College Medchal Hyderabad India Department of Electronics and Communication Engineering Prince Shri Venkateshwara Padmavathy Engineering College Chennai Tamil Nadu India Department of Nano Electronics Materials and Sensors Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Chennai Tamil Nadu India Department of Electrical and Electronics Engineering MLR Institute of Technology Hyderabad India

ISBN: (数字)9798350364590

ISBN: (纸本)9798350375381

More than 1.3 million electric vehicles have been installed throughout the globe, and public charging networks for these vehicles are becoming increasingly common. It has been an area of interest to establish a plan for prioritizing the charging of electric vehicles (EVs) from a single network. This is particularly important in situations when the power source is restricted, such as with renewable energy, and for economic reasons (a higher price per KWh for quicker charging). When used in conjunction with electric vehicle (EV) charging, solar energy significantly decreases our reliance on fossil fuels. An electric car solar charger is created and constructed inside this system. In order to maximize the output from the solar panels, a dc-dc boost converter is used to transfer the voltage from the panels to the station's batteries. Maximum Power Point Tracking (MPPT) is also included. Power the charging station with energy from the solar panels so that the vehicle's rechargeable battery may be charged. The charging station's status can be monitored at any time via the Internet of Things. We have created a solar-powered charging station to provide simple accessibility. Solar power is both a sustainable and accessible renewable energy source. Arduino controller for light-dependent resistor (LDR) light intensity monitoring, solar cell energy observation, battery charging, and cloud storage. The core idea behind the article is the IoT Solar Charging Station (IoTSCS), and it is tested by comparing it to the Classical Solar Charging Station (CSCS), a more traditional scheme, in order to see how well the new scheme works.

关键词： Maximum power point trackers Renewable energy sources Voltage Charging stations Electric vehicle charging Batteries Internet of Things Solar panels Standards Monitoring

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Electronic-photonic quantum systems on-chip

Electronic-photonic quantum systems on-chip

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Quantum 2.0, QUANTUM 2022

作者： Wang, Imbert Ramesh, Anirudh Kramnik, Danielius Fargas Cabanillas, Josep M. Stojanović, Vladimir Kumar, Prem Popović, Miloš A. Department of Electrical and Computer Engineering Photonics Center Boston University BostonMA02215 United States Graduate Program in Applied Physics Northwestern University EvanstonIL60208 United States Department of Electrical Engineering and Computer Science UC Berkeley BerkeleyCA94720 United States Center for Photonic Communication and Computing Dept. of Electrical and Computer Eng. Northwestern University EvanstonIL60208 United States

We present progress towards realizing electronic-photonic quantum systems on-chip;particularly, entangled photon-pair sources, placing them in the context of previous work, and outlining our vision for mass-producible... 详细信息

ISBN: (纸本)9781957171111

关键词： Quantum entanglement

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Molten flux growth of single crystals of quasi-1D hexagonal chalcogenide BaTiS3

arXiv

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arXiv 2024年

作者： Chen, Huandong Singh, Shantanu Mei, Hongyan Ren, Guodong Zhao, Boyang Surendran, Mythilli Wang, Yan-Ting Mishra, Rohan Kats, Mikhail A. Ravichandran, Jayakanth Mork Family Department of Chemical Engineering and Materials Science University of Southern California Los AngelesCA United States Department of Electrical and Computer Engineering University of Wisconsin-Madison MadisonWI United States Institute of Materials Science & Engineering Washington University in St. Louis St. LouisMO United States Core Center for Excellence in Nano Imaging University of Southern California Los AngelesCA United States Department of Mechanical Engineering and Materials Science Washington University in St. Louis St. LouisMO United States Department of Materials Science and Engineering University of Wisconsin-Madison MadisonWI United States Ming Hsieh Department of Electrical and Computer Engineering University of Southern California Los AngelesCA United States

BaTiS3, a quasi-1D complex chalcogenide, has gathered considerable scientific and technological interest due to its giant optical anisotropy and electronic phase transitions. However, the synthesis of high-quality BaTiS3 crystals, particularly those featuring crystal sizes of millimeters or larger, remains a challenge. Here, we investigate the growth of BaTiS3 crystals utilizing a molten salt flux of either potassium iodide, or a mixture of barium chloride and barium iodide. The crystals obtained through this method exhibit a substantial increase in volume compared to those synthesized via the chemical vapor transport method, while preserving their intrinsic optical and electronic properties. Our flux growth method provides a promising route towards the production of high-quality, large-scale single crystals of BaTiS3, which will greatly facilitate advanced characterizations of BaTiS3 and its practical applications that require large crystal dimensions. Additionally, our approach offers an alternative synthetic route for other emerging complex chalcogenides. © 2024, CC BY.

关键词： Electronic properties

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