Ziyi Chen

ORCID: 0000-0003-2193-9204
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advanced Materials and Semiconductor Technologies
  • Advanced Energy Technologies and Civil Engineering Innovations
  • Sparse and Compressive Sensing Techniques
  • Stochastic Gradient Optimization Techniques
  • Microfluidic and Bio-sensing Technologies
  • Advanced Optimization Algorithms Research
  • Advanced Sensor and Energy Harvesting Materials
  • Acoustic Wave Resonator Technologies
  • Perovskite Materials and Applications
  • Wireless Signal Modulation Classification
  • Human-Automation Interaction and Safety
  • Catalysis for Biomass Conversion
  • Advanced SAR Imaging Techniques
  • Nanoplatforms for cancer theranostics
  • Food Supply Chain Traceability
  • Electric Power Systems and Control
  • Power System Reliability and Maintenance
  • Integrated Circuits and Semiconductor Failure Analysis
  • GaN-based semiconductor devices and materials
  • Granular flow and fluidized beds
  • Pharmacological Effects of Natural Compounds
  • Semiconductor materials and interfaces
  • Speech and Audio Processing
  • Ginseng Biological Effects and Applications
  • Nanocluster Synthesis and Applications

Nanjing University of Science and Technology
2022-2025

Ministry of Industry and Information Technology
2025

Hunan University
2025

Jilin University
2021-2024

China Medical University
2024

China Automotive Technology and Research Center
2023

Zhejiang Gongshang University
2023

Beijing Jiaotong University
2023

Fuzhou University
2020-2023

University of Utah
2021

Abstract With the continuous improvement of display demand in scientific research and market, Micro‐light‐emitting diode (LED) has emerged as a new generation technology. its excellent performance color, resolution, life, energy consumption, Micro‐LED shined brilliantly market recent years. This review introduces methods for realizing full‐color through color conversion from perspective existing technologies, including preparation chip, process early passive matrix driving method to active...

10.1002/admt.202200632 article EN Advanced Materials Technologies 2022-07-25

Abstract Wide color gamut and high resolution are becoming key features of the new generation displays, hence quantum dots pixels with luminescence purity have been placed great expectations. However, how to facilely rapidly fabricate electroluminescent both per inch (PPI) efficiency has a challenge. Here, one‐step, mask‐free, rapid laser writing strategy ultra‐high perovskite (PQDs) is presented. It found that laser‐induced reaction can convert PQDs into oxide, forming perovskite@oxide...

10.1002/adfm.202413811 article EN Advanced Functional Materials 2025-01-02

The binding between the immune checkpoints, programmed cell death ligand 1 (PD-L1) and (PD-1), compromises T-cell-mediated surveillance. Immune checkpoint therapy using inhibitors (ICIs) to block PD-L1 on cancer membrane or PD-1 activated T can restore antitumor function of cell. However, intracellular expression its active redistribution may impair therapeutic benefits ICIs. To address this issue, herein we develop a nanodrug (MS NPs) capable reducing enhancing effects.

10.7150/thno.45777 article EN cc-by Theranostics 2020-12-16

Chemodynamic therapy (CDT) as a catalytic anticancer strategy utilizes transition metal ions to initiate the Fenton reaction produce high levels of cytotoxic hydroxyl radicals(·OH) in situ. Nevertheless, current existing CDTs are normally restricted by antioxidant molecules and/or enzymes, such glutathione (GSH) and thioredoxin reductase (TrxR), tumor internal environment, which could suppress CDT via ·OH depletion. Herein, enhance ·OH-induced cellular damage CDT, self-assembled...

10.1021/acsmaterialslett.2c01024 article EN ACS Materials Letters 2023-03-21

Abstract Acoustic weighing is a promising contactless method for screening the mass of micro-nano objects as it avoids contact contamination and losses. Existing acoustic methods determine an object by detecting its oscillation trajectory with laser sensor. However, this suffers from several limitations, such short measurement distance, poor accuracy in measuring transparent objects, inducing damage to photosensitive samples. To solve these issues, work proposes based on location-aware...

10.1088/1361-6501/ad28eb article EN Measurement Science and Technology 2024-02-13

Perovskite quantum dots (PQDs) have garnered significant attention in the display industry as high-performance luminescent materials recent years. However, outdoor applications, it is highly challenging to maintain performance of PQDs while simultaneously ensuring superhydrophobicity and self-cleaning functionality rainy weather conditions. Here, we report a pixel array fabricated using superhydrophobic with photoluminescence yield (PLQY) 32%. The surface exhibits high static contact angle...

10.1021/acs.nanolett.4c06610 article EN Nano Letters 2025-01-31

Crystal structure forms the foundation for understanding physical and chemical properties of materials. Generative models have emerged as a new paradigm in crystal prediction(CSP), however, accurately capturing key characteristics structures, such periodicity symmetry, remains significant challenge. In this paper, we propose Transformer-Enhanced Variational Autoencoder Structure Prediction (TransVAE-CSP), who learns characteristic distribution space stable materials, enabling both...

10.48550/arxiv.2502.09423 preprint EN arXiv (Cornell University) 2025-02-13

Scope Cerebral ischemia‐reperfusion (IR) injury stands as a prominent global contributor to disability and mortality. Nervonic acid (NA), bioactive elongated monounsaturated fatty acid, holds pivotal significance in human physiological well‐being. This research aims explore the prophylactic effects fundamental mechanisms of NA rat model cerebral IR injury. Methods results Through induction middle artery occlusion, this study establishes comprehensively assesses pharmacodynamic impacts...

10.1002/mnfr.202300671 article EN Molecular Nutrition & Food Research 2024-04-01

Wide-bandgap semiconductors are more advantageous for betavoltaic batteries due to their high conversion efficiency and strong radiation resistance. However, there has been little comprehensive analysis of how wide-bandgap lead improvements. In this work, we proposed a simulation model predict the output performance based on 4H-SiC, hexagonal-GaN, diamond, in which Monte Carlo code COMSOL Multiphysics software were combined. The energy deposition 63Ni source electrical characteristics p–n...

10.1063/5.0102995 article EN Applied Physics Letters 2022-09-05

Accurate detection and parameter estimation of frequency hopping (FH) signals remain challenging in FH signal-based transmission systems. This study proposes a scheme combining time-frequency analysis (TFA) deep learning (DL)-based image processing algorithms to alleviate the degradation accuracy performance caused by complex electromagnetic interference (EMI). A short-time Fourier transform (STFT) was used obtain signal spectrogram, which reflects energy concentration-dependent manner....

10.1109/access.2023.3271720 article EN cc-by IEEE Access 2023-01-01

Gancao Xiexin Decoction (GCXXD) is a traditional Chinese decoction that often used in treating gastric ulcers. However, the substance basis and mechanism of action remain unclear. In this study, vivo vitro components GCXXD were analyzed by ultra‐high‐performance liquid chromatography coupled with quadrupole‐orbitrap mass spectrometry. The compound Discover platform was to ultimately enable rapid identification compounds. Acquire X intelligent data acquisition technology software innovatively...

10.1002/jssc.202300751 article EN Journal of Separation Science 2024-01-01

Abstract The conventional betavoltaic battery design fails to eliminate the inherent influence of radioactive source self-absorption effect, leading a bottleneck in efficiency and power batteries. In this paper, feasible high-efficiency 63 NiO/ZnO integrated is designed compared with battery. Simulation results show that proposed has better output performance breaks upper limit power. work presented here provides valuable insights for radioisotope designs, physical modeling procedure...

10.35848/1882-0786/acb757 article EN Applied Physics Express 2023-01-30

For the 63NiO-Si heterojunction betavoltaic nuclear battery, energy deposition of conversion material itself was simulated by Monte Carlo simulation, and structure optimized based on theoretical calculation results. When thickness 63NiO is 4 μm doping concentration Si 1 × 1015 cm−3, short-circuit current density, open-circuit voltage, fill factor, maximum output power density battery are 1.22 μA · cm−2, 3.17 V, 0.95, 3.67 μW cm−2. In addition, performance 63Ni/NiO-Si cell calculated in this...

10.1063/5.0100186 article EN Applied Physics Letters 2022-08-22

Betavoltaic batteries can meet long-term energy supply needs. However, due to the decay of radioactive source, output performance battery will change over time, and laws this require elucidation aid engineer. In study, influences time on apparent power density β-energy spectrum 63 Ni source were clarified. Moreover, structural parameters, including p-region, n-region doping concentrations, junction depth GaN-based (hexagonal) p–n junction, optimized, which are 2 × 1017 cm–3, 1014 0.1 μm,...

10.1063/5.0142965 article EN Applied Physics Letters 2023-04-24

This paper presents a simulation model to predict the performance of GaAs-based betavoltaic batteries with p–n junction structure, in which carrier transport and collection characteristics were studied. First, electron–hole pair generation rate GaAs material under irradiation 63Ni source was calculated using Monte Carlo codes. Furthermore, by simulating energy band electric field distribution, current density distribution finite element analysis software COMSOL Multiphysics, we analyzed...

10.1063/5.0068261 article EN cc-by AIP Advances 2021-10-01

Nuclear battery is a promising long-life power source. Selecting semiconductors with high limit efficiency and appropriate device structures effectively improves their output performance. In this work, GaN-based (hexagonal) betavoltaic Ni63 source was simulated by Monte Carlo codes COMSOL Multiphysics, the energy converters, including p–n junction p–i–n junction, were compared optimized. We analyzed effects of thickness doping concentration each region on performances. The p-region n-region...

10.1063/5.0101096 article EN cc-by AIP Advances 2022-08-01

The gradient descent-ascent (GDA) algorithm has been widely applied to solve minimax optimization problems. In order achieve convergent policy parameters for optimization, it is important that GDA generates variable sequences rather than of function values or norms. However, the convergence proved only under convexity geometries, and there lacks understanding general nonconvex optimization. This paper fills such a gap by studying more proximal-GDA regularized nonconvex-strongly-concave...

10.48550/arxiv.2102.04653 preprint EN other-oa arXiv (Cornell University) 2021-01-01

In this work, energy converters, which contain a GaP–Si heterojunction and Si-based Schottky barrier diodes with Al, Ti, Ag, W, are used to convert 2 μm-thick 63Ni radioactive source into electrical energy. First, deposition distributions of the in these converters simulated by using Monte Carlo method. Then, output properties 63Ni/GaP–Si cell 63Ni/metal–Si determined through numerical calculation. For cell, optimized thickness GaP layer doping concentration Si, maximum power density...

10.1063/5.0053917 article EN cc-by AIP Advances 2021-06-01

Platycodi Radix ( PR ) is a valuable herb that widely used in the treatment of chronic obstructive pulmonary disease clinics. However, mechanism action for remains unclear due to lack vivo studies. Our study established novel integrated strategy based on ultra‐performance liquid chromatography coupled with time‐of‐flight mass spectrometry, network pharmacology, and molecular docking systematically analyze tissue distribution active compounds therapeutic disease. First, studies have shown...

10.1002/jssc.202300398 article EN Journal of Separation Science 2023-09-08

This paper describes the theoretical calculation and optimization design of PN junction betavoltaic batteries with 4H–SiC-based energy converter titanium tritide source. The self-absorption radioactive isotope sources deposition distribution in semiconductor are simulated using Monte Carlo method. relationship between doping concentrations basic factors such as minority carrier diffusion lengths width depletion region analyzed via formulas. Then maximum output power density conversion...

10.1063/5.0114529 article EN cc-by AIP Advances 2022-10-01

A significant challenge in Frequency hopping (FH) communications is accurately identifying the target FH signals within multiplexed spectrum. This letter proposes a recognition scheme that combines time-frequency analysis with deep learning to overcome degradation of recognizing multiple amidst complex electromagnetic interference. The utilizes synchroextracting transform obtain spectrogram mixed signal by aggregating energy, then employs RFRM-CenterNet enhanced small-object detection...

10.1109/lcomm.2024.3363167 article EN IEEE Communications Letters 2024-02-06
Coming Soon ...