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7th International Seminar on Research of Information Technology and Intelligent Systems, ISRITI 2024

作者： Loo, Jia Hao Jauw, Veronica Lestari Lim, Chin Seong Sarmin, Khairul-Rijal Qomariyah, Nunung Nurul Fajar, Ahmad Nurul University of Nottingham Malaysia Department of Mechanical Materials and Manufacturing Engineering Malaysia Continental Tyre Technology Centre Malaysia Petaling Jaya Malaysia Bina Nusantara University School of Computing and Creative Arts Computer Science Department Jakarta Indonesia Bina Nusantara University BINUS Graduate Program Information System Management Department Jakarta Indonesia

ISBN: (纸本)9798331519643

This study aims to develop a system for extracting crucial information from tire sidewalls using Optical Character Recognition (OCR). Initially, images of tire were captured manually by smartphone cameras, including Redmi 9T, iPhone 11, and Galaxy S23 Ultra. The captured images are then transferred to a computer for storage. Subsequently, these images were cropped according to the boundaries identified by Hough Circle Transform (HCT). The cropped images were then further pre-processed. During the pre-processing phase, geometrical transformation and image sharpening techniques are applied to enhance the clarity and readability of the text images. The text is then extracted using Google Vision, with the extracted text categorized by size, DOT, brand and pattern. The results indicated that the effectiveness of image pre-processing was constrained by the accuracy of circle detection, which reached a maximum rate of 87.1%. This causes parts of the text to be cut out inaccurately, leading to a suboptimal extraction accuracy of 55.65%. It is also observed that the Redmi 9T camera produced inconsistent results compared to other devices. Specifically, the iPhone 11 and Samsung Galaxy S23 Ultra demonstrated superior extraction accuracies of 69.71% and 66.37%, respectively, whereas the Redmi 9T achieved a lower extraction accuracy of 37.76%. © 2024 IEEE.

关键词： OCR text extraction text identification tire handling tire sidewalls information

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Accelerated Modelling of Interfaces for Electronic Devices using Graph Neural Networks

arXiv

引用

arXiv 2023年

作者： Brahma, Pratik Bhattaram, Krishnakumar Salahuddin, Sayeef Department of Electrical Engineering and Computer Sciences University of California Berkeley United States Materials Science Division Lawrence Berkeley National Laboratory United States

Modern microelectronic devices are composed of interfaces between a large number of materials, many of which are in amorphous or polycrystalline phases. Modeling such non-crystalline materials using first-principles methods such as density functional theory is often numerically intractable. Recently, graph neural networks (GNNs) have shown potential to achieve linear complexity with accuracies comparable to ab-initio methods. Here, we demonstrate the applicability of GNNs to accelerate the atomistic computational pipeline for predicting macroscopic transistor transport characteristics via learning microscopic physical properties. We generate amorphous heterostructures, specifically the HfO2-SiO2-Si semiconductor-dielectric transistor gate stack, via GNN predicted atomic forces, and show excellent accuracy in predicting transport characteristics including injection velocity for nanoslab silicon channels. This work paves the way for faster and more scalable methods to model modern advanced electronic devices via GNNs. © 2023, CC BY.

关键词： Silica

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High Quality Factor Microcavity for Van der Waals Semiconductor Polaritons Using a Transferrable Mirror( vol 11 , 2201440 , 2023 )

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ADVANCED OPTICAL materials 2023年第23期11卷

作者： Paik, Eunice Y. Zhang, Long Hou, Shaocong Zhao, Haonan Chou, Yu-Hsun Forrest, Stephen R. Deng, Hui Department of Physics University of Michigan Ann Arbor Michigan USA Department of Physics University of Michigan Ann Arbor Michigan USA Department of Physics Xiamen University Xiamen China School of Electrical Engineering and Automation Wuhan University Wuhan China Department of Electrical and Computer Engineering University of Michigan Ann Arbor Michigan USA Department of Photonics National Cheng Kung University Tainan City Taiwan Departments of Electrical and Computer Engineering Physics and Materials Science and Engineering University of Michigan Ann Arbor Michigan USA

Semiconductor microcavities with a high quality‐factor are an important component for photonics research and technology, especially in the strong coupling regime. While van der Waals semiconductors have emerged as an interesting platform for photonics due to their strong exciton–photon interaction strength and engineering flexibility, incorporating them in photonic devices requires heterogeneous integration and remains a challenge. This study demonstrates a method to assemble high quality factor microcavities for van der Waals materials, using high reflectance top mirrors which, similar to van der Waals materials themselves, can be nondestructively and reliably peeled off the substrate and transferred onto the rest of the device. Microcavities are created with quality factors consistently above 2000 and up to 11000 ± 800; and the strong coupling regime is demonstrated. The method can be generalized to other types of heterogeneously integrated photonic structures and will facilitate research on cavity quantum electrodynamic and photonic systems using van der Waals materials.

关键词： distributed Bragg reflectors exciton–polaritons microcavity transition metal dichalcogenides van der Waals materials

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Anisotropic and Nonlinear Optical Properties of 2D Transition Metal Carbides and Nitrides (MXenes)

Anisotropic and Nonlinear Optical Properties of 2D Transitio...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Jeffrey Simon Benjamin Reigle Colton Fruhling Danzhen Zhang Stefano Ippolito Hyunho Kim Vladimir Shalaev Yury Gogotsi Alexandra Boltasseva Elmore Family School of Electrical and Computer Engineering and Birck Nanotechnology Center Purdue University West Lafayette IN USA Department of Materials Science and Engineering A. J. Drexel Nanomaterials Institute Drexel University Philadelphia Pennsylvania USA

We report the experimentally retrieved anisotropic optical permittivity of several MXenes which indicate that these materials exhibit a hyperbolic dispersion relationship. Additionally, we describe the thickness depen... 详细信息

ISBN: (纸本)9798350369311

关键词： Metals Anisotropic Lasers and electrooptics Geometrical optics Optical materials Nonlinear optics Permittivity Laser transitions Electro-optical waveguides Dispersion

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Real-time Nonlinear Pulse Evolution Dynamics in a Tm-doped Fiber Laser

Real-time Nonlinear Pulse Evolution Dynamics in a Tm-doped F...

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Conference on Lasers and Electro-Optics (CLEO)

作者： Shutao Xu Junjie Zeng Michelle Y. Sander Department of Electrical and Computer Engineering and BU Photonics Center Boston University Boston Massachusetts USA Division of Materials Science and Engineering Boston University Brookline Massachusetts USA Department of Biomedical Engineering Boston University Boston Massachusetts USA

We investigate the nonlinear pulse evolution dynamics in a Tm-doped fiber laser in real-time with a modified dispersive Fourier transform technique. Coherence degradation and recovery processes are analyzed with spect... 详细信息

ISBN: (纸本)9781957171258

关键词： Coherent states Dissipative solitons Fourier transforms Laser sources Thulium doped fiber lasers Ultrafast lasers

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Annotating TSSs in Multiple Cell Types Based on DNA Sequence and RNA-seq Data via DeeReCT-TSS

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Genomics, Proteomics & Bioinformatics 2022年第5期20卷 959-973页

作者： Juexiao Zhou Bin Zhang Haoyang Li Longxi Zhou Zhongxiao Li Yongkang Long Wenkai Han Mengran Wang Huanhuan Cui Jingjing Li Wei Chen Xin Gao Computer Science Program ComputerElectrical and Mathematical Sciences and Engineering DivisionKing Abdullah University of Science and TechnologyThuwal 23955-6900Saudi Arabia Computational Bioscience Research Center King Abdullah University of Science and TechnologyThuwal 23955-6900Saudi Arabia Department of Biology School of Life SciencesSouthern University of Science and TechnologyShenzhen 518055China Shenzhen Key Laboratory of Gene Regulation and Systems Biology School of Life SciencesSouthern University of Science and TechnologyShenzhen 518055China Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China

The accurate annotation of transcription start sites(TSSs)and their usage are critical for the mechanistic understanding of gene regulation in different biological *** fulfill this,specific high-throughput experimental technologies have been developed to capture TSSs in a genome-wide manner,and various computational tools have also been developed for in silico prediction of TSSs solely based on genomic *** of these computational tools cast the problem as a binary classification task on a balanced dataset,thus resulting in drastic false positive predictions when applied on the genome ***,we present Dee Re CT-TSS,a deep learningbased method that is capable of identifying TSSs across the whole genome based on both DNA sequence and conventional RNA sequencing *** show that by effectively incorporating these two sources of information,Dee Re CT-TSS significantly outperforms other solely sequence-based methods on the precise annotation of TSSs used in different cell ***,we develop a meta-learning-based extension for simultaneous TSS annotations on 10 cell types,which enables the identification of cell type-specific ***,we demonstrate the high precision of DeeReCT-TSS on two independent datasets by correlating our predicted TSSs with experimentally defined TSS chromatin *** source code for Dee Re CT-TSS is available at https://github.-com/Joshua Chou2018/Dee Re CT-TSS_release and https://***/biocode/tools/BT007316.

关键词： Transcription start site Machine learning Deep learning Meta-learning RNA sequencing

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Strain-Balanced AlScN/GaN HEMTs with fT/fMAX of 173/321 GHz

Strain-Balanced AlScN/GaN HEMTs with fT/fMAX of 173/321 GHz

引用

International Electron Devices Meeting (IEDM)

作者： T. S. Nguyen K. Nomoto W. Zhao C. Savant H. G. Xing D. Jena Department of Materials Science and Engineering Cornell University Ithaca NY USA School of Electrical and Computer Engineering Cornell University Ithaca NY USA School of Applied and Engineering Physics Cornell University Ithaca NY USA Kavli Institute at Cornell for Nanoscale Science Cornell University Ithaca NY USA

ISBN: (数字)9798350365429

ISBN: (纸本)9798350365436

We report the effect of scaling the gate length from 0.8 µm to 40 nm on the performance of novel strain-balanced AlScN/GaN high electron mobility transistors (HEMTs) on SiC substrates. A new strain-balanced heterostructure is introduced where the tensile strain of the AlN interlayer is balanced by the compressive strain in the AlScN barrier layer. MBE regrown source/drain ohmics with ultralow contact resistance of 0.09 Ω·mm allow a low HEMT on resistance of 0.83 Ω·mm. The shortest gate length AlScN/GaN HEMTs exhibit maximum drain currents of 2.8 A/mm, peak transconductance of 0.55 S/mm, and speed characterized by $f_{T}$ / $f_{MAX}$ of 173/321 GHz. The highest $f_{MAX}$ obtained here is ~2X higher than previous AlScN HEMTs.

关键词： Resistance Tensile strain Silicon carbide HEMTs Logic gates MODFETs III-V semiconductor materials Electron devices Transconductance Substrates

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Standardization of Core and Component Characterization at the Advanced Magnetics for Power and Energy Development Laboratory

Standardization of Core and Component Characterization at th...

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IEEE Transportation Electrification Conference and Expo (ITEC)

作者： Chris Bracken Richard Beddingfield Mark A. Juds Bharadwaj Reddy Andapally Brandon Grainger Paul R. Ohodnicki Department of Mechanical Engineering and Materials Science University of Pittsburgh Pittsburgh United States Department of Electrical and Computer Engineering North Carolina State University Raleigh United States Companhia Brasileira de Metalurgia e Mineração (CBMM) Flevoland Netherlands Department of Electrical and Computer Engineering University of Pittsburgh Pittsburgh United States

Magnetic core and component characterization presents technical challenges, particularly with a focus on achieving higher frequency and voltage operation with advances in power electronics converters due to wide bandgap semiconductors. Accurate characterization plays a critical role in benchmarking the performance of existing core materials and construction for various component designs. In addition, characterization of fabricated components with application relevant excitation is critical for accurate assessment of technical figures of merit. Standardization of core and component characterization plays a foundational role in benchmarking and quantifying performance improvement of new magnetic materials, core constructions, and component designs. In this article, we discuss existing standards relevant for magnetic core characterization and several new standard development activities currently underway relevant for medium frequency and power applications. We also discuss the application of relevant measurements to selected magnetic core materials and components currently active within the Advanced Magnetics for Power and Energy Development (AMPED) Consortium. Example current transformer components are designed and tested as an example of standardized testing that is currently underway, to be expanded in the future to also include inductors and transformers amongst others.

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Molecular-Functionalized Metal-Organic Frameworks Enabling Tribocatalytic Organic Decomposition

SSRN

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SSRN 2023年

作者： Zhang, Yihe Kang, Tian Han, Xin Yang, Weifeng Gong, Wei Li, Kerui Guo, Yinben School of Materials Science and Engineering Shanghai University of Engineering Science Shanghai201620 China State Key Laboratory of Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai200237 China State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai201620 China Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore117583 Singapore

Metal-organic frameworks (MOFs) have been used in triboelectric areas for either improving the outputs or expanding some novel applications. However, research on the effects of the grafted groups of MOFs molecular to triboelectricity remains scarce. Here, we modified the MIL-101(Cr) with three groups (pyridine, amino, nitro) to obtain a series of X-MOFs (X=-PY, -NH2 and -NO2) and clarified their position in triboelectric series. The great electron-donating ability of pyridine granted PY-MOF positive tribopolarity and effectively improved the power density by 9.6 times. Moreover, PY-MOF was proved as significant tribocatalytic material with degradation rate of 97% in 3 h via degradation of methylene blue (MB) dye in aqueous environment. This work shows that the modification of MOF molecular with functional groups can modulate the triboelectric properties of MOFs for largely improving the output performance and show great application prospects in the field of tribo-catalysis. © 2023, The Authors. All rights reserved.

关键词： Nanogenerators

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Low-power Rapid Planar Superconducting Logic Devices

arXiv

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arXiv 2024年

作者： Gusarov, Nikolay Mandal, Rajesh Salameh, Issa Holzman, Itamar Kvatinsky, Shahar Ivry, Yachin Department of Materials Science and Engineering Technion - Israel Institute of Technology Haifa3200003 Israel Solid State Institute Technion – Israel Institute of Technology Haifa3200003 Israel Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion - Israel Institute of Technology Haifa3200003 Israel Department of Materials Science and Engineering University of California BerkeleyCA94720 United States

The rapid-pace growing demand for high-performance computation and big-data manipulation entails substantial increase in global power consumption, and challenging thermal management. Thus, there is a need in allocating competitive alternatives for complementary metal-oxide-semiconductor (CMOS) technologies. Superconducting platforms, such as rapid single flux quantum (RSFQ) lack electric resistance and excel in power efficiency and time performance. However, traditional RSFQs require 3D geometry for their Josephson junctions (JJs) imposing a large footprint, and hence preventing device miniaturization and increasing processing time. Here, we demonstrate that RSFQ logic circuits of planar geometry with weak-link bridges are scalable, relatively easy to process and are CMOS-compatible on a Si chip. Universal logic gates, as well as combinational arithmetic circuiting that are based on these devices are demonstrated. The power consumption and processing time of these logic circuits were as low as 0.8 nW and 13 ps, an order of magnitude improvement with respect to the equivalent traditional-RSFQ logic circuits and two orders of magnitude with respect to CMOS. The competitive performance of planar RSFQ logic circuits renders them for promising CMOS substitutes, especially in the supercomputational realm. © 2024, CC BY.

关键词： CMOS integrated circuits

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