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Multiplexed Nanoscopy via Buffer Exchange

ACS Nano 2024年第34期18卷 23445-23456页

作者： Chang, Ting-Jui Ben Yang, T. Tony Department of Electrical Engineering National Taiwan University Taipei10617 Taiwan Graduate Institute of Biomedical Electronics and Bioinformatics National Taiwan University Taipei10617 Taiwan Department of Physics National Taiwan University Taipei10617 Taiwan Nano Science and Technology Program Taiwan International Graduate Program Academia Sinica and National Taiwan University Taipei10617 Taiwan

Understanding cellular functions, particularly in their intricate complexity, can greatly benefit from the spatial mapping of diverse molecules through multitarget single-molecule localization microscopy (SMLM). Existing methodologies, primarily restricting the encoding dimensions to color and lifetime or requiring cyclic staining, often involve broad chromatic detection, specialized optical configurations, or sophisticated labeling techniques. Here, we propose a simple approach called buffer-exchange stochastic optical reconstruction microscopy (beSTORM), which introduces an additional dimension to differentiate between single molecules irrespective of their spectral properties. This method leverages the distinguishable photoblinking responses to distinct buffer conditions, offering a straightforward yet effective means of fluorophore discrimination. Through buffer exchanges, beSTORM achieves multitarget SMLM imaging with minimal crosstalk. Direct integration with expansion microscopy (ExM) demonstrates its capability to resolve up to six proteins at the molecular level within a single emission color without chromatic aberration. Overall, beSTORM presents a highly compatible imaging platform, promising significant advancements in highly multiplexed nanoscopy for exploring multiple targets in biological systems with nanoscale precision. © 2024 The Authors. Published by American Chemical Society.

关键词： Stochastic systems

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Modeling and Multivariable Analysis of a Two-Stage Three-Phase Grid-Connected Inverter for Photovoltaic Systems 8

Modeling and Multivariable Analysis of a Two-Stage Three-Pha...

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8th Southern Power electronics Conference and the 17th Brazilian Power electronics Conference, SPEC / COBEP 2023

作者： Teixeira, Daniel Pinheiro De Oliveira Almeida, Andrei Valle, Rodolfo Lacerda Barbosa, Pedro Gomes De Almeida, Pedro MacHado Federal University of Juiz de Fora Electrical Engineering Program Juiz de Fora Brazil CEFET-MG Dept. of Electric and Electronics Leopoldina Brazil Federal University of Juiz de Fora Dept. of Electrical Engineering Juiz de Fora Brazil

ISBN: (纸本)9798350321128

This article presents an approach to modelling and analyzing photovoltaic inverters through the use of multivariable techniques. By applying singular value decomposition and relative gain array methodologies, the inverter can be viewed as a multiple-input multiple-output system, allowing for a comprehensive assessment of the relevant variables that require control within a specific frequency range. This advanced approach offers a deeper understanding of the complex interactions between the different components of the photovoltaic inverter, enabling more effective control over critical parameters. © 2023 IEEE.

关键词： inverter modelling photovoltaic rga svd

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Mechanism of Threshold Voltage Instability in Double Gate α-IGZO Nanosheet TFT under Bias and Temperature Stress

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IEEE Journal of the Electron Devices Society 2024年 12卷 464-471页

作者： Aslam, Muhammad Chang, Shu-Wei Chen, Yi-Ho Lee, Yao-Jen Li, Yiming Lee, Wen-Hsi Parallel and Scientific Computing Laboratory National Yang Ming Chiao Tung University Hsinchu300093 Taiwan Electrical Engineering and Computer Science International Graduate Program National Yang Ming Chiao Tung University Hsinchu300093 Taiwan Department of Electrical Engineering National Cheng Kung University Tainan City701401 Taiwan Institute of Pioneer Semiconductor Innovation Industry Academic Innovation School National Yang Ming Chiao Tung University Hsinchu300093 Taiwan Department of Electronics and Electrical Engineering National Yang Ming Chiao Tung University Hsinchu300093 Taiwan Institute of Communications Engineering National Yang Ming Chiao Tung University Hsinchu300093 Taiwan

Amorphous indium gallium zinc oxide (a-IGZO)-based thin film transistors (TFTs) are increasingly becoming popular because of their potential in futuristic applications, including CMOS technology. Given the demand for CMOS-compatible, ultra-scaled, reliable, and high-performing devices, we fabricate and analyze scaled-channel a-IGZO-TFTs with an optimal double-gate structure, a thin nanosheet-based channel, and an effective high- κ dielectric namely HfO2. The reliably reported double gate IGZO nanosheet TFTs (DG-IGZO-NS-TFTs) are tested under positive and negative bias stress at variant temperatures, and the resulting modulations are analyzed critically. The reported DG-IGZO-NSTFTs exhibit a negative side threshold voltage shift (Δ Vth) accompanied by an increase in Ion/Ion(0) under negative bias temperature stress (NBTS) at elevated temperatures, which indicates the presence of additional charges. An anomalous negative side shifting of the Vth is observed under positive bias temperature stress (PBTS), where diffused hydrogen atoms are identified as introducing excess n-type carriers into the channel and causing the observed Δ Vth. The spectroscopic analysis is performed to establish evidence for the assumed mechanisms, and the role of individual gates is investigated in the context of performance variance under temperature-bias stress. Moreover, the partial reversibility of the stress-induced degradation is experimentally established and methodically discussed. Overall, the reported results offer a comprehensive understanding of scaled-channel DG-NS-IGZO-TFTs, which help shape performance-enhancement strategies, control degradation mechanisms, and define appropriate application scenarios. © 2013 IEEE.

关键词： Thin film transistors

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Reachability Analysis of Nonlinear Discrete-Time Systems Using Polyhedral Relaxations and Constrained Zonotopes 63

Reachability Analysis of Nonlinear Discrete-Time Systems Usi...

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63rd IEEE Conference on Decision and Control, CDC 2024

作者： Rego, Brenner S. Raffo, Guilherme V. Terra, Marco H. Scott, Joseph K. Georgia Institute of Technology Department of Chemical and Biomolecular Engineering 311 Ferst Dr. AtlantaGA30318 United States University of Säo Paulo Department of Electrical and Computer Engineering SP Säo Carlos13566-590 Brazil Federal University of Minas Gerais Department of Electronics Engineering and the Graduate Program in Electrical Engineering MG Belo Horizonte31270-901 Brazil

ISBN: (纸本)9798350316339

This paper presents a novel algorithm for reachability analysis of nonlinear discrete-time systems. The proposed method combines constrained zonotopes (CZs) with polyhedral relaxations of factorable representations of nonlinear functions to propagate CZs through nonlinear functions, which is normally done using conservative linearization techniques. The new propagation method provides better approximations than those resulting from linearization procedures, leading to significant improvements in the computation of reachable sets in comparison to other CZ methods from the literature. Numerical examples highlight the advantages of the proposed algorithm. © 2024 IEEE.

关键词： Numerical methods

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Mapping the Research Landscape : A Bibliometric Study of Flow Rate Sensors and Horizontal Water Pipe 10

Mapping the Research Landscape : A Bibliometric Study of Flo...

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10th International Conference on Computing, engineering and Design, ICCED 2024

作者： Suryana, Anang Junfithrana, Anggy Pradiftha Mahamad, Abd Kadir Utomo, Wahyu Mulyo Hijuzaman, Osep Narputro, Panji Universiti Tun Hussein Onn Malaysia Faculty of Electrical and Electronics Engineering Batu Pahat Malaysia Nusa Putra University Faculty of Electrical and Electronics Engineering Sukabumi Indonesia STT Wastukancana Industrial Engineering Study Program Bandung Indonesia Nusa Putra University Electrical Engineering Study Program Sukabumi Indonesia

ISBN: (纸本)9798331529376

The significance of flow rate sensors and horizontal water pipes in various applications highlights their crucial role in enhancing fluid dynamics monitoring and management. This study aims to map the research landscape through a bibliometric analysis of flow rate sensors and horizontal water pipes. The analysis includes author analysis, affiliation analysis, country or territory analysis, source analysis, keyword analysis, trend topic analysis, and thematic map analysis. Bibliometric analysis helps policymakers, industry professionals, and researchers navigate the extensive body of literature, ensuring that efforts in flow rate sensor technology and horizontal water pipe research align with current trends and contribute effectively to advancing knowledge in these areas. The results will serve as a valuable guide, helping stakeholders understand the evolving research landscape, make informed decisions, and gain deeper insights into the trajectory of research in flow rate sensors and horizontal water pipes. © 2024 IEEE.

关键词： Mapping

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EfficientSpeech: An On-Device Text to Speech Model

EfficientSpeech: An On-Device Text to Speech Model

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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Rowel Atienza Electrical and Electronics Engineering Institute and AI Graduate Program University of the Philippines

State of the art (SOTA) neural text to speech (TTS) models can generate natural-sounding synthetic voices. These models are characterized by large memory footprints and substantial number of operations due to the long-standing focus on speech quality with cloud inference in mind. Neural TTS models are generally not designed to perform standalone speech syntheses on resource-constrained and no Internet access edge devices. In this work, an efficient neural TTS called EfficientSpeech that synthesizes speech on an ARM CPU in real-time is proposed. EfficientSpeech uses a shallow non-autoregressive pyramid-structure transformer forming a U-Network. EfficientSpeech has 266k parameters and consumes 90 MFLOPS only or about 1% of the size and amount of computation in modern compact models such as Mixer-TTS. EfficientSpeech achieves an average mel generation real-time factor of 104.3 on an RPi4. Human evaluation shows only a slight degradation in audio quality as compared to FastSpeech2.

关键词： Performance evaluation Degradation Computational modeling Signal processing Transformers Real-time systems Computational efficiency

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Mapping the Research Landscape : A Bibliometric Study of Flow Rate Sensors and Horizontal Water Pipe

Mapping the Research Landscape : A Bibliometric Study of Flo...

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International Conference on Computing, engineering, and Design (ICCED)

作者： Anang Suryana Anggy Pradiftha Junfithrana Abd Kadir Mahamad Wahyu Mulyo Utomo Osep Hijuzaman Panji Narputro Faculty of Electrical and Electronics Engineering Universiti Tun Hussein Onn Malaysia Batu Pahat Malaysia Faculty of Electrical and Electronics Engineering Nusa Putra University Sukabumi Indonesia Industrial Engineering Study Program STT Wastukancana Bandung Indonesia Electrical Engineering Study Program Nusa Putra University Sukabumi Indonesia

ISBN: (数字)9798331529376

ISBN: (纸本)9798331529383

关键词： Industries Waste reduction Fluid dynamics System performance Bibliometrics Market research Sensors Trajectory Optimization Monitoring

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Beamforming Design Toward Sum-Rate Maximization for Holographic Active RIS-Aided Uplink Near-Field Communications

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IEEE Internet of Things Journal 2025年第12期12卷 18582-18595页

作者： Singh, Sandeep Singh, Keshav Singh, Sandeep Kumar Shin, Hyundong Duong, Trung Q. National Sun Yat-sen University International Master’s Program in Telecommunication Engineering Kaohsiung80424 Taiwan National Sun Yat-sen University Institute of Communications Engineering Kaohsiung80424 Taiwan Kyung Hee University Department of Electronic Engineering Gyeonggi Yongin17104 Korea Republic of Motilal Nehru National Institute of Technology Allahabad Department of Electronics and Communication Engineering Prayagraj211004 India Memorial University Faculty of Engineering and Applied Science St. John’sA1C 5S7 Canada Queen’s University Belfast School of Electronics Electrical Engineering and Computer Science BelfastBT7 1NN United Kingdom

Holographically driven active reconfigurable intelligent surface (HARIS), leveraging densely packed subwavelength elements, overcomes the limitations of conventional RIS in signal processing, unlocking advanced capabilities for next-generation networks. Thus, to exploit its full potential, this work proposes the integration of HARIS into an Internet of Things (IoT) multiuser uplink near-field-driven wireless communication system. A sum-rate maximization problem is formulated to provide efficient resource utilization by jointly optimizing the equalizer design, power allocation at each IoT user, and the HARIS phase shift, while satisfying strict constraints of Quality-of-Service (QoS) requirement and limited power budget at each IoT user and HARIS. Due to the nonconvex nature of the problem, we propose an alternating optimization (AO)-based algorithm, incorporating techniques, such as minimum-mean-square error (MMSE), convex upper bound approximation, and semidefinite relaxation (SDR). Then, extensive simulations validate the algorithm’s efficacy and convergence, demonstrating up to 63% higher performance with HARIS than passive RIS. Additionally, we highlight that near-field communication yields up to 90% higher sum-rate than hybrid 76% and far-field model 73%. Moreover, we demonstrate the impact of imperfect channel state information (iCSI) on the system performance. © 2014 IEEE.

关键词： Mean square error

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Low Routing Complexity Multiframe Pipelined LDPC Decoder Based on a Novel Pseudo Marginalized Min-Sum Algorithm for High Throughput Applications

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IEEE Transactions on Very Large Scale Integration (VLSI) Systems 2023年第1期31卷 29-42页

作者： Davila, HenryLopez Wu, Tsung-Han Jou, Shyh-Jye Jerry Chen, Sau-Gee Tsai, Pei-Yun National Chiao Tung University Eecs International Graduate Program Hsinchu30010 Taiwan National Yang Ming Chiao Tung University Institute of Electronics Hsinchu30010 Taiwan National Central University Electrical Engineering Department Taoyuan32001 Taiwan

This article presents a high throughput and low routing complexity multiframe pipelined low-density parity check (LDPC) decoder design based on a novel pseudo marginalized min-sum (PMMS) message passing approach. The proposed PMMS approach reduces the required number of interconnections in the routing network allowing the design to be implemented with reduced hardware complexity, low power consumption and high throughput capability while supporting multiple coding rates with short and long codewords as defined in many application standards. Implementation results for IEEE802.11ad/ay standards show that the proposed design satisfies a target bit error rate (BER) requirement of 3× 10-7 with 64 quadrature amp mod (QAM) targeting high throughput applications. Furthermore, the proposed design is able to achieve a throughput of 62 and 101.8 Gb/s with two pipelining stages under 28-nm CMOS and 16-nm FinFET CMOS process, respectively. As compared to the existing NMS algorithm, the proposed design based on the PMMS approach reduces the number of wires in the routing network by 45.5%, and the wirelength of the overall decoder by 17%. The area and power consumption are also reduced by 9.4% and 12%, respectively, as compared to the conventional normalized min-sum (NMS) algorithm. © 1993-2012 IEEE.

关键词： Message passing

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Pulse-Width and Nearest-Level Modulation Strategies Applied to a MMC-Based 12 MW Direct-Drive Wind Energy Conversion System 8

Pulse-Width and Nearest-Level Modulation Strategies Applied ...

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8th Southern Power electronics Conference and the 17th Brazilian Power electronics Conference, SPEC / COBEP 2023

作者： Almeida, Andrei O. Paulo, Matheus S. Teixeira, Daniel P. Valle, Rodolfo L. Almeida, Pedro M. Barbosa, Pedro G. Federal Center for Technological Education Dept. of Electric and Electronics MG Leopoldina Brazil Federal University of Juiz de Fora Electrical Engineering Program MG Juiz de Fora Brazil

ISBN: (纸本)9798350321128

This paper proposes a 12 MW direct-drive wind energy conversion system, with a 6.6 kV/132 poles permanent magnet synchronous generator, similar to the Haliade-X 12MW, manufactured by General Electric. In addition, a back-to-back modular multilevel converter with four submodules per arm is used. A pulse-width modulation strategy is compared to a nearest-level modulation strategy, in order to analyze the switching stress and harmonic content of each one. The low frequency of the generator influences directly in the design of the capacitance and inductance of the converters, as well as the filters used to connect the generating unit to the main grid. Simulations obtained with PSCAD/EMTDC are used to discuss results of the proposed system with two different modulation strategies. © 2023 IEEE.

关键词： modular multilevel converter nearest-level modulation pulse-width modulation wind energy conversion

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