Jiayi Zhao

ORCID: 0009-0007-0682-8676
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Research Areas
  • Advanced Memory and Neural Computing
  • Turbomachinery Performance and Optimization
  • Catalytic Processes in Materials Science
  • Semiconductor materials and devices
  • Catalysis and Oxidation Reactions
  • Ferroelectric and Negative Capacitance Devices
  • Combustion and flame dynamics
  • Heat Transfer Mechanisms
  • E-commerce and Technology Innovations
  • Integrated Circuits and Semiconductor Failure Analysis
  • Graphene and Nanomaterials Applications
  • Nanocluster Synthesis and Applications
  • Aerodynamics and Fluid Dynamics Research
  • Advanced Photocatalysis Techniques
  • Computational Fluid Dynamics and Aerodynamics
  • Advancements in Semiconductor Devices and Circuit Design
  • Advanced Nanomaterials in Catalysis
  • Catalysts for Methane Reforming
  • Nanoparticles: synthesis and applications
  • Medical and Biological Ozone Research
  • Physical Unclonable Functions (PUFs) and Hardware Security
  • Carbon Dioxide Capture Technologies
  • Chaos-based Image/Signal Encryption
  • Neural dynamics and brain function
  • Microfluidic and Bio-sensing Technologies

Zhejiang University of Science and Technology
2025

Zhejiang University
2023-2025

Wuhan University
2023-2025

Hebei Normal University
2025

North China University of Science and Technology
2024

Huazhong University of Science and Technology
2024

Hefei University of Technology
2023

Ministry of Education of the People's Republic of China
2023

Second Military Medical University
2023

Xi'an Jiaotong University
2013-2018

Biological neurons use diverse temporal expressions of spikes to achieve efficient communication and modulation neural activities. Nonetheless, existing neuromorphic computing systems mainly simplified neuron models with limited spiking behaviors due high cost emulating these biological spike patterns. Here, we propose a compact reconfigurable design using the intrinsic dynamics NbO 2 -based unit excellent tunability in an electrochemical memory (ECRAM) emulate fast-slow bio-plausible...

10.1126/sciadv.adr6733 article EN cc-by-nc Science Advances 2025-02-05

Abstract Spike-timing-dependent plasticity (STDP) is a classic synaptic function that facilitates learning and memory in biological brain. Hardware implementation of neural circuits supporting dynamical STDP functions offers notable advantages terms processing speed efficiency over software-based approach. However, the validity builds on precise timing pre- post-synaptic spikes, while appearance intrinsic variations analogue causes distortions to spike generations thus affects performance....

10.1088/2634-4386/add9c0 article EN cc-by Neuromorphic Computing and Engineering 2025-05-16

Abstract The transient characteristic of the disturbance from impeller, which is largely influenced by stagger angle IGV (inlet guide vane), significantly determines performance vaned-diffuser downstream. Thus, understanding these phenomena critical to avoid degradation diffuser including dreadful rotating stall. paper adopts both experimental and numerical methods investigate significant change characteristics under large pre-swirl effects. whole process stall, origins vortex at rear...

10.1515/tjj-2025-0038 article EN International Journal of Turbo and Jet Engines 2025-05-26

Abstract Ruthenium‐based catalysts are currently considered as the promising alternatives to high‐cost iridium‐based employed for acidic oxygen evolution reaction (OER) but they still faces bottlenecks of limited durability and slow kinetics. In this study, we synthesized Cr 2 O 3 /RuO heterojunction via hydrothermal annealing techniques address issue. The demonstrated a low overpotential 220 mV in an environment reach current density 10 mA cm −2 well stable operation 100 h. Experimental...

10.1002/slct.202501065 article EN ChemistrySelect 2025-05-29

In this work, we focused on the performance optimization of neural network (NN) system in synaptic device HfAlOx (HAO)-based ferroelectric field-transistors (FeFET), especially with voltage bias scheme. The weights linearity, power consumption, and current ratio HAO-FeFET based synapse are measured under different bias. Using open-source tool "NeuroSim <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math...

10.1109/led.2023.3300371 article EN IEEE Electron Device Letters 2023-08-01

To reduce the leakage and power consumption of metal–oxide resistive random access memory (RRAM), we propose fabricate a cold-electrode (CE) RRAM (CE-RRAM) by extending mechanism cold-source FETs. First-principles calculations show that n-Si/TiN composite CE can filter electrons with energy within Si bandgap, which contribute to current. A n-Si/TiN/HfOx/Pt CE-RRAM low current large on/off ratio was designed fabricated. Comparative analysis conventional demonstrates over 100-fold reduction in...

10.1063/5.0214593 article EN Applied Physics Letters 2024-07-01

As the flow rate decreases from design to rotating stall condition, enhanced impeller–diffuser interaction considerably deteriorates condition at diffuser inlet, which may trigger and blade vibration problems. In order reveal underlying mechanism estimate impact of within impeller passages, measurements using wireless acquisition technique high-frequency response system have been conducted on a 1.5 stage centrifugal compressor with vaned diffuser. The details its transient characteristics...

10.1177/0957650917738848 article EN Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy 2017-10-31

In this work, we demonstrate a high-throughput true random number generator (TRNG), which passes the National Institute of Standards and Technology (NIST) 800–22 800-90B randomness tests. A novel TiN/HfO2/n-Si structured semiconductor-vacancies (S-VOs) junction entropy source is developed with an area 4 F2. The TRNGs are implemented by proposed square transform method in voltage domain using analog-to-digital converter (ADC). According to measured statistical characteristics, exhibit...

10.1109/ted.2023.3302277 article EN IEEE Transactions on Electron Devices 2023-08-15

Abstract Microfluidics enables miniaturization, functionality, high throughput and reproducibility of multi-pathogen detection. Multiplexed microfluidic devices are electrochemical sensor-based, optical immunosensor-based paper-based multiplexed microfluidics. However, the simultaneous detection multiple pathogens is limited due to complexity diversity infectious disease sources mutual interference among analytes. This review provides an overview recent advances in developing multiplex...

10.1097/im9.0000000000000120 article EN cc-by-nc-nd Infectious Microbes & Diseases 2023-05-08

The clocking effect, known as a potential means to improve the aerodynamic performance of turbomachinery, has been investigated widely in multistage axial but little reported on radial turbomachinery. In present paper, an experimental investigation was made vane effect between inlet guide vanes and vaned diffuser medium-speed centrifugal compressor. measured data show that researched compressor stage. At design point, maximum efficiency variation is about 0.52 points total pressure ratio...

10.1177/0957650913513252 article EN Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy 2013-11-28

This paper confirms the importance of e-commerce by analyzing definition and historical development e-commerce. It also emphasizes cybersecurity trust in online transactions for Through analysis Porter's five forces model, it is concluded that market does have great potential because obvious advantages compared with traditional commerce but has high competition due to low barrier entry. In addition, this analyzes companies including SHEIN, Cainiao, Xiaohongshu, Taobao, TikTok, summarizes...

10.54097/hbem.v15i.9322 article EN cc-by-nc Highlights in Business Economics and Management 2023-06-28

The spike-type rotating stall (RS) inception inside the vaned-diffuser, which seriously restricts performance range and brings problems of blade fatigue, still seems to be a ‘mystery’ since its randomness. paper intends explain mechanisms this inception. To quantitatively assess critical unsteady behavior initiation RS inception, transient measurement characterizes process falling into through parameter ‘blade passing irregularity’. underlying vortex disturbance, related growing flow...

10.1115/gt2018-76145 article EN 2018-06-11

Five transition metal elements (Fe, Co, Ni, Cu, Zn) were doped to improve the isothermal integrated CO2 capture and utilization produce ethylene (ICCU-ODHE) performance of Cr-based dual functional material (DFM). The results show that doping ICCU-ODHE performance, therein DFM with Zn exhibits excellent an yield 35.1%. based on in-situ XPS DFT calculation can reduce energy barriers for activating ethane CO2, increase coordinative unsaturated Cr3+ ions adsorb more molecules. Meanwhile, also...

10.2139/ssrn.4705361 preprint EN 2024-01-01

The increasing demand for medical products has accelerated the research and development in this field. Nowadays, continuous advancement of nanotechnology led to integration healthcare. Nanosilver, particular, demonstrated significant potential regard. Nanosilver refers materials with nanoscale dimensions, its unique properties at have application various fields. Current shows that silver nanoparticles possess remarkable antibacterial can effectively kill a wide range microorganisms,...

10.54097/5xndrp47 article EN cc-by-nc Highlights in Science Engineering and Technology 2024-02-27
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