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17th IEEE International Conference on Solid-State and Integrated Circuit technology, ICSICT 2024

作者： Liu, Yu Lin, Lin Wang, Xiang Zhong, Chengyan Guo, Junxiong Huang, Wen Guo, Yufeng College of Integrated Circuit Science and Engineering Nanjing University of Posts and Telecommunications National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology Nanjing210023 China School of Integrated Circuit Science and Engineering University of Electronic Science and Technology of China State Key Laboratory of Electronic Thin Films and Integrated Devices Chengdu610054 China Institute of Advanced Study School of Electronic Information and Electrical Engineering Chengdu University Chengdu610106 China

ISBN: (纸本)9798350361834

Neuromuscular junctions (NMJs) are specialized synapses that enable the efficient transduction of neural signals into muscle contractions in biological systems. Desirable artificial NMJs aim to replicate biological synaptic plasticity and high-power actuation for advanced robotics and prosthetics, but face challenges in achieving sufficient flexibility, strength, and self-contained operation. Here, we report a novel artificial NMJ based on a silicon carbide (SiC) ferroelectric field-effect transistor. By integrating a ferroelectric floating gate dielectric with a wide-bandgap SiC transistor, we achieve a wide range of non-volatile conductance modulation, enabling the emulation of long-term synaptic plasticities. We demonstrate the PZT-SiC transistor's higher threshold voltage and lower operating currents compared to traditional SiC transistors, resulting in reduced power consumption. The device exhibits excellent synaptic plasticity, with the ability to modulate synaptic weights through successive test cycles and upon pulsatile stimulation. We showcase the potential of the PZT-SiC synaptic transistor through its application in convolutional image processing, where it successfully extracts horizontal and vertical features using Sobel kernels. Our work presents a promising hardware platform for efficient and scalable artificial NMJs, paving the way for advanced biohybrid systems and neuromorphic robots. © 2024 IEEE.

关键词： Gate dielectrics

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Nonvolatile chirality switching in terahertz chalcogenide metasurfaces

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Microsystems & Nanoengineering 2022年第5期8卷 197-205页

作者： Jiaxin Bao Xieyu Chen Kuan Liu Yu Zhan Haiyang Li Shoujun Zhang Yihan Xu Zhen Tian Tun Cao School of Optoelectronic Engineering and Instrumentation Science Dalian University of TechnologyDalian 116024P.R.China Center for Terahertz waves and College of Precision Instrument and Optoelectronics Engineering Tianjin Universityand the Key Laboratory of Optoelectronics Information and Technology(Ministry of Education)Tianjin 300072P.R.China

Actively controlling the polarization states of terahertz(THz)waves is essential for polarization-sensitive spectroscopy,which has various applications in anisotropy imaging,noncontact Hall measurement,and vibrational circular *** the THz regime,the lack of a polarization modulator hinders the development of this *** theoretically and experimentally demonstrate that conjugated bilayer chiral metamaterials(CMMs)integrated with Ge_(2)Sb_(2)Te_(5)(GST225)active components can achieve nonvolatile and continuously tunable optical activity in the THz region.A THz time-domain spectroscopic system was used to characterize the device,showing a tunable ellipticity(from‒36°to 0°)and rotation of the plane polarization(from 32°to 0°)at approximately 0.73 THz by varying the GST225 state from amorphous(AM)to crystalline(CR).Moreover,a continuously tunable chiroptical response was experimentally observed by partially crystallizing the GST225,which can create intermediate states,having regions of both AM and CR *** that the GST225 has an advantage of nonvolatility over the other active elements and does not require any energy to retain its structural *** work allows the development of THz metadevices capable of actively manipulating the polarization of THz waves and may find applications for dynamically tunable THz circular polarizers and polarization modulators for THz emissions.

关键词： polarization tunable modulator

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Ligand modulation of active center to promote lead-free Cs_(2)AgInCl_(6)photocatalytic CO_(2)reduction

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Journal of Energy Chemistry 2024年第8期95卷 660-669,I0015页

作者： Baofei Sun Wei Chen Yanyi Huang Daofu Wu Heng Luo Faguang Kuang Hongmei Ran Yichen Liu Liqin Gao Jinchen Zhou Bo Gao Qiang Huang Xiaosheng Tang Key Laboratory of Human Brain Bank for Functions and Diseases of Department of Education of Guizhou Province College of Basic MedicalGuizhou Medical UniversityGuiyang 550025GuizhouChina School of Electromechanical and Automotive Engineering Yantai UniversityYantai 264005ShandongChina State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina College of Optoelectronic Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China Key Laboratory of Optoelectronic Technology&Systems(Ministry of Education) College of Optoelectronic EngineeringChongqing UniversityChongqing 400044China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou 450001HenanChina

Metal halide perovskites(MHP)are potential candidates for the photocatalytic reduction of CO_(2)due to their long photogenerated carrier lifetime and charge diffusion ***,the conventional long-chain ligand impedes the adsorption and activation of CO_(2)molecules in practical ***,a ligand modulation technology is employed to enhance the photocatalytic CO_(2)reduction activity of lead-free Cs_(2)AgInCl_(6)microcrystals(MCs).The Cs_(2)AgInCl_(6)MCs passivated by Oleic acid(OLA)and Octanoic acid(OCA)are used for photocatalytic CO_(2)*** results show that the surface defects and electronic properties of Cs_(2)AgInCl_(6)MCs can be adjusted through ligand *** with the OLA-Cs_(2)AgInCl_(6),the OCA-Cs_(2)AgInCl_(6)catalyst demonstrated a significant improvement in the catalytic yield of CO and CH_(4).The CO and CH_(4)catalytic yields of OCA-Cs_(2)AgInCl_(6)reached 171.88 and34.15μmol g^(-1)h^(-1)which were 2.03 and 12.98 times higher than those of OLA-Cs_(2)AgInCl_(6),and the total electron consumption rate of OCA-Cs_(2)AgInCl_(6)was 615.2μmol g^(-1)h^(-1)which was 3.25 times higher than that of OLA-Cs_(2)AgInCl_(6).Furthermore,in situ diffuse reflectance infrared Fourier transform spectra revealed the enhancement of photocatalytic activity in Cs_(2)AgInCl_(6)MCs induced by ligand *** study illustrates the potential of lead-free Cs_(2)AgInCl_(6)MCs for efficient photocatalytic CO_(2)reduction and provides a ligand modulation strategy for the active promotion of MHP photocatalysts.

关键词： Surface ligand Photocatalysis CO_(2)reduction Lead-free perovskite Reactive mechanism

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Development of a Multichannel Piezoelectric Ultrasonic Transducer Array for Nondestructive Testing Applications 17

Development of a Multichannel Piezoelectric Ultrasonic Trans...

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17th Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, SPAWDA 2023

作者： Hu, Zijian Sun, Changhe School of Electronic Information and Electrical Engineering Yangtze University Jingzhou434023 China Chongqing University Key Laboratory of Optoelectronic Technology & Systems Ministry of Education Chongqing400044 China

ISBN: (纸本)9798350394740

Welded structures have been widely used in automotive production, aerospace, construction industry and other fields. With the trend of industrial welded structures becoming larger and thicker, it is of very importance to test the weld quality of the medium-thickness steel plates above 25 mm for ensuring the safety and reliability of the weld structures. In this paper, a multi-channel piezoelectric ultrasonic transducer array has been developed for detecting the sub-millimeter defects inside medium-thickness steel plates. Both the electrical impedance analysis and ultrasonic pulse echo test characterization show that the theoretical design model can effectively guide the design of the ultrasonic transducer array design. Besides, a standard butt-welded steel plate was tested for weld defects with a minimum feature size of 0.5 mm, and the results show that the developed multi-channel piezoelectric ultrasonic transducer array can accurately detect sub-millimeter weld defects, with a detection resolution of better than 0.5mm. © 2023 IEEE.

关键词： Defects

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Virtual Hue: A Web Application for Anemia Prognosis

Virtual Hue: A Web Application for Anemia Prognosis

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Smart systems for applications in Electrical sciences (ICSSES), International Conference on

作者： Gn Vivekananda L Pradeep School of Computer Science Engineering & Information Systems Vellore Institute of Technology VIT INDIA

ISBN: (数字)9798350364040

ISBN: (纸本)9798350364057

Anemia is a state of bad health condition where there is the presence of a low amount of red blood cells in the blood. We aim to build a simple Anemia prediction Web Application, that predicts whether a patient is anemic or not by which doctor can make a better decision in the diagnosis of the disease. The purpose of this study is to create a model that uses red blood cell indicators to predict anemia in adults. There are 1422 data records in the collection of data from Kaggle. After that, they undergo preprocessing, normalization, balancing, and the application of certain machine learning algorithms. It is followed by outcome analysis, validation, and verification. With an accuracy of 98.7%, the Ada Boost and Random Forest Classifier ensemble model exhibits the best performance. For the prediction of anemia, choosing the top-performing algorithm, stacking it with other algorithms, and using a voting classifier are all essential to increase accuracy regardless of any time constraints.

关键词： Training Machine learning algorithms Accuracy Red blood cells Prediction algorithms Data models Classification algorithms

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Silicon Photonic Tunable Flat-top Filters based on CROW Structures at 2-μm Spectral Range

Silicon Photonic Tunable Flat-top Filters based on CROW Stru...

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2023 Optical Fiber Communications Conference and Exhibition, OFC 2023

作者： Wu, You Guo, Xiaoyuan Wang, Xi Du, Jiangbing Song, Qinghai Xu, Ke Harbin Institute of Technology Department of Electronic and Information Engineering Shenzhen518055 China Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai200240 China Harbin Institute of Technology Department of Science Shenzhen518055 China

Silicon photonic tunable flat-top filters are demonstrated via the 5th-order and the 10th-order CROW structure at 2-μm waveband. Box-like transmission spectra are measured with 3-dB bandwidth of 3.34 nm and 5.34 nm, ... 详细信息

ISBN: (纸本)9781957171180

关键词： Silicon photonics

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Wind Driven Optimization-Based Medical Image Encryption for Blockchain-Enabled Internet of Things Environment

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Computers, Materials & Continua 2022年第11期73卷 3219-3233页

作者： C.S.S.Anupama Raed Alsini N.Supriya E.Laxmi Lydia Seifedine Kadry Sang-Soo Yeo Yongsung Kim Department of Electronics&Instrumentation Engineering V.R.Siddhartha Engineering CollegeVijayawada520007India Department of Information Systems Faculty of Computing and Information TechnologyKing Abdulaziz UniversityJeddahSaudi Arabia Department of Computer Science and Engineering Malla Reddy Engineering College(A)Hyderabad500100India Department of Computer Science and Engineering Vignan’s Institute of Information TechnologyVisakhapatnam530049India Department of Applied Data Science Noroff University College4612KristiansandNorway Department of Computer Engineering Mokwon UniversityDaejeon35349Korea Department of Technology Education Chungnam National University 99Daehak-roYuseong-guDaejeon34134Korea

Internet of Things(IoT)and blockchain receive significant interest owing to their applicability in different application areas such as healthcare,finance,transportation,*** image security and privacy become a critical part of the healthcare sector where digital images and related patient details are communicated over the public *** paper presents a new wind driven optimization algorithm based medical image encryption(WDOA-MIE)technique for blockchain enabled IoT *** WDOA-MIE model involves three major processes namely data collection,image encryption,optimal key generation,and data ***,the medical images were captured from the patient using IoT ***,the captured images are encrypted using signcryption *** addition,for improving the performance of the signcryption technique,the optimal key generation procedure was applied by WDOA *** goal of the WDOA-MIE algorithm is to derive a fitness function dependent upon peak signal to noise ratio(PSNR).Upon successful encryption of images,the IoT devices transmit to the closest server for storing it in the blockchain *** performance of the presented method was analyzed utilizing the benchmark medical image *** security and the performance analysis determine that the presented technique offers better security with maximum PSNR of 60.7036 dB.

关键词： Internet of things image security medical images encryption optimal key generation blockchain

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A comprehensive analysis of IoT security towards providing a cost-effective solution: a layered approach

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International Journal of information technology (Singapore) 2023年第7期15卷 3813-3826页

作者： Gopinath, Velivela Rao, K. Venkata Rao, S. Krishna Department of Information Technology and Computer Applications Andhra University College of Engineering Andhra University Andhra Pradesh Visakhapatnam 530003 India Department of Computer Science and Systems Engineering Andhra University College of Engineering Andhra University Andhra Pradesh Visakhapatnam 530003 India Department of Information Technology Sir C R Reddy College of Engineering Andhra Pradesh Eluru 534007 India

Abstract: The Internet of Things (IoT) greatly influences people’s lives. Traditional privacy and security mechanisms may not suit for Internet of Things due to its resource constraint environments. So there is a need for privacy and security mechanisms, especially for IoT. A good number of security mechanisms are available in the network and application layers. The study reveals that there should be much more scope for providing security and privacy in the sensing layer itself. The paper focuses on IoT security goals and the security framework at the sensing layer. The sensing layer privacy and security are implemented through Blockchain technology. The security is transmitted to the top layers, such as the network and application layers, by safeguarding the sensing layer. The cost of the highest tiers of security is automatically reduced. Then we analysed the proposed framework concerning security attacks and security goals. Finally, we analysed the cost-effectiveness of the system. Also, with the proposed work, 57.41% of IoT security goals impacts are reduced. At the physical layer, 71.43%;at the network layer, 70.59% and at the application layer, 38.46% of security goal impacts are prevented. Also, we formulated the thrust vector for the proposed framework. The findings indicate that the suggested approach increases trust by 61.36% while reducing costs by 60.16%. Graphical abstract: [Figure not available: see fulltext.]. © 2023, The Author(s), under exclusive licence to Bharati Vidyapeeth's Institute of Computer Applications and Management.

关键词： Internet of Things Privacy Security Security attacks Security goals Sensing layer

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Manipulating d-d orbital hybridization induced by Mo-doped Co_(9)S_(8) nanorod arrays for high-efficiency water electrolysis

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Journal of Energy Chemistry 2024年第6期93卷 592-600,I0015页

作者： Xue Zhou Jing Li Guangyao Zhou Weiran Huang Yucan Zhang Jun Yang Huan Pang Mingyi Zhang Dongmei Sun Yawen Tang Lin Xu Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Centre of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023JiangsuChina 'College of Science Jinling Institute of TechnologyNanjing 211169JiangsuChina State Key Laboratory of Multiphase Complex Systems Institute of Process EngineeringChinese Academy of SciencesBeijing 100190China Nanjing IPE Institute of Green Manufacturing Industry Nanjing 211100JiangsuChina School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225009JiangsuChina Key Laboratory for Photonic and Electronic Bandgap Materials Ministry of EducationSchool of Physics and Electronic EngineeringHarbin Normal UniversityHarbin 150025HeilongjiangChina

Precisely refining the electronic structure of electrocatalysts represents a powerful approach to further optimize the electrocatalytic ***,we demonstrate an ingenious d-d orbital hybridization concept to construct Mo-doped Co_(9)S_(8) nanorod arrays aligned on carbon cloth(CC)substrate(abbreviated as Mo-Co_(9)S_(8)@CC hereafter)as a high-efficiency bifunctional electrocatalyst toward water *** has experimentally and theoretically validated that the 4d-3d orbital coupling between Mo dopant and Co site can effectively optimize the H_(2)O activation energy and lower H^(*)adsorption energy barrier,thereby leading to enhanced hydrogen evolution reaction(HER)and oxygen evolution reaction(OER)*** to the unique electronic and geometrical advantages,the optimized Mo-Co_(9)S_(8)@CC with appropriate Mo content exhibits outstanding bifunctional performance in alkaline solution,with the overpotentials of 75 and 234 mV for the delivery of a current density of 10 mA cm^(-2),small Tafel slopes of 53.8 and 39.9 mV dec~(-1)and long-term stabilities for at least 32 and 30 h for HER and OER,*** impressively,a water splitting electrolylzer assembled by the self-supported Mo-Co_(9)S_(8)@CC electrode requires a low cell voltage of 1.53 V at 10 mA cm^(-2)and shows excellent stability and splendid reversibility,demonstrating a huge potential for affordable and scalable electrochemical H_(2) *** innovational orbital hybridization strategy for electronic regulation herein provides an inspirable avenue for developing progressive electrocatalysts toward new energy systems.

关键词： d-d orbital hybridization Transition metal sulfides Nanorods arrays Water electrolysis

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Unexpected divergence in magnetoreceptor MagR from robin and pigeon linked to two sequence variations

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Zoological Research 2024年第1期45卷 69-78页

作者： Shun Wang Peng Zhang Fan Fei Tianyang Tong Xiujuan Zhou Yajie Zhou Jing Zhang Mengke Wei Yanqi Zhang Lei Zhang Yulong Huang Lin Zhang Xin Zhang Tiantian Cai Can Xie Institutes of Physical Science and Information Technology Anhui UniversityHefeiAnhui 230039China High Magnetic Field Laboratory Hefei Institutes of Physical ScienceChinese Academy of SciencesScience IslandHefeiAnhui 230031China Science Island Branch of Graduate School University of Science and Technology of ChinaHefeiAnhui 230036China Department of Anatomy Anhui Medical UniversityHefeiAnhui 230032China Department of Mechanical and Aerospace Engineering University at BuffaloState University of New YorkBuffaloNY 14260 USA International Magnetobiology Frontier Research Center Science IslandHefeiAnhui 230031China

Birds exhibit extraordinary mobility and remarkable navigational skills,obtaining guidance cues from the Earth’s magnetic field for orientation and long-distance *** species also show tremendous diversity in navigation strategies,with considerable differences even within the same taxa and among individuals from the same *** highly conserved iron and iron-sulfur cluster binding magnetoreceptor(MagR)protein is suggested to enable animals,including birds,to detect the geomagnetic field and navigate ***,MagR is also implicated in other functions,such as electron transfer and biogenesis of iron-sulfur clusters,raising the question of whether variability exists in its biochemical and biophysical features among species,particularly *** the current study,we conducted a comparative analysis of MagR from two different bird species,including the migratory European robin(Erithacus rubecula)and the homing pigeon(Columba livia).Sequence alignment revealed an extremely high degree of similarity between the MagRs of these species,with only three sequence ***,two of these variations underpinned significant differences in metal binding capacity,oligomeric state,and magnetic *** findings offer compelling evidence for the marked differences in MagR between the two avian species,potentially explaining how a highly conserved protein can mediate such diverse functions.

关键词： Homing and migration Animal navigation Magnetoreceptor(MagR) Diverse navigation pattern Conserved protein

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