Jiaqi Feng

ORCID: 0009-0005-4185-3856
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advanced Neural Network Applications
  • Advanced Antenna and Metasurface Technologies
  • X-ray Diffraction in Crystallography
  • Remote-Sensing Image Classification
  • Crystallization and Solubility Studies
  • Advanced Image and Video Retrieval Techniques
  • Antenna Design and Analysis
  • Nuclear reactor physics and engineering
  • Spectroscopy and Quantum Chemical Studies
  • Metamaterials and Metasurfaces Applications
  • Space Satellite Systems and Control
  • Power Systems and Renewable Energy
  • Crystallography and molecular interactions
  • Smart Grid and Power Systems
  • Nuclear Engineering Thermal-Hydraulics
  • Photonic Crystals and Applications
  • Molecular Junctions and Nanostructures
  • Domain Adaptation and Few-Shot Learning
  • Advanced Wireless Communication Technologies
  • Recommender Systems and Techniques
  • Microwave Engineering and Waveguides
  • Infrared Target Detection Methodologies
  • Advanced Battery Materials and Technologies
  • Concrete Corrosion and Durability
  • HVDC Systems and Fault Protection

University of Science and Technology Beijing
2023-2025

Hefei University of Technology
2025

Johns Hopkins University
2024

NARI Group (China)
2021-2024

Beihang University
2022-2024

Xi'an Jiaotong University
2024

Shanghai Micro Satellite Engineering Center
2022-2024

University of Shanghai for Science and Technology
2024

National University of Singapore
2019-2024

Innovation Academy for Microsatellites of Chinese Academy of Sciences
2022-2024

Sulfurized polyacrylonitrile (SPAN) represents a class of sulfur-bonded polymers, which have shown thousands stable cycles as cathode in lithium-sulfur batteries. However, the exact molecular structure and its electrochemical reaction mechanism remain unclear. Most significantly, SPAN shows an over 25% 1st cycle irreversible capacity loss before exhibiting perfect reversibility for subsequent cycles. Here, with thin-film platform array analytical tools, we show that is associated...

10.1021/jacs.3c00628 article EN Journal of the American Chemical Society 2023-04-18

Greenness identification from crop images captured outdoors is the important step for growth monitoring. The commonly used methods greenness are based on visible spectral-index, such as excess green index, minus red vegetative color index of vegetation extraction, combined index. All these spectral-index working assumption that plants display a clear high degree greenness, and soil only background element. In fact, brightness contrast an image coming outdoor environments seriously affected...

10.1016/j.inpa.2015.07.003 article EN cc-by-nc-nd Information Processing in Agriculture 2015-08-13

Singlet fission in organic semiconductors causes a singlet exciton to decay into pair of triplet excitons and holds potential for increasing the efficiency photovoltaic devices. In this combined experimental theoretical study, we reveal that covalent dimer semiconductor tetracene undergoes activated by qualitatively different mechanisms depending on solvent environment. We show intramolecular vibrations are an integral part mechanism, giving rise mixing between charge transfer excitations....

10.1021/jacs.9b05561 article EN Journal of the American Chemical Society 2019-10-11

Most hyperspectral image (HSI) classification methods rely on square patch sampling to incorporate spatial information, thereby facilitating the label prediction of center pixel. However, introduces numerous heterogeneous pixels, which could distort Moreover, it generates fixed training sample for each pixel, hampering performance transformer-based models requiring a large number data. To address above problems, we proposed Center Attention Transformer (CAT) with stratified spatial-spectral...

10.1109/tgrs.2024.3374954 article EN IEEE Transactions on Geoscience and Remote Sensing 2024-01-01

Abstract The complex dynamics of ultrafast photoinduced reactions are governed by their evolution along vibronically coupled potential energy surfaces. It is now often possible to identify such processes, but a detailed depiction the crucial nuclear degrees freedom involved typically remains elusive. Here, combining excited-state time-domain Raman spectroscopy and tree-tensor network state simulations, we construct full 108-atom molecular movie singlet fission in pentacene dimer, explicitly...

10.1038/s41467-019-12220-7 article EN cc-by Nature Communications 2019-09-16

Rich user behavior data has been proven to be of great value for Click-Through Rate (CTR) prediction applications, especially in industrial recommender, search, or advertising systems. However, it's non-trivial real-world systems make full use long-term behaviors due the strict requirements online serving time. Most previous works adopt retrieval-based strategy, where a small number are retrieved first subsequent attention. methods sub-optimal and would cause information losses, difficult...

10.1145/3511808.3557082 article EN Proceedings of the 31st ACM International Conference on Information & Knowledge Management 2022-10-16

Solid-state lithium batteries are uniquely suited for operation at elevated to even high temperatures (>100 °C). Under these conditions, however, oxide cathode materials unstable with high-conductivity sulfide-based electrolytes while elemental sulfur suffers from poor utilization due its insulating nature. Here, we developed an ionic liquid mediated synthesis procedure polythiocynogen (poly-SCN) and applied it as a sulfur-rich cathode. The material, uniform, submicrometer particle size > 55...

10.1021/acsenergylett.3c00659 article EN ACS Energy Letters 2023-05-23

Strong sugar tolerance and high bioethanol yield of yeast under high-gravity fermentation have caused great attention in the industry. In this study, Clustered Regularly Interspaced Short Palindromic Repeats Cas9 (CRISPR-Cas9) technology was used to knock out S. cerevisiae GPD2, FPS1, ADH2, DLD3, ERG5, NTH1, AMS1 construct engineering strain GFADENA. Under with 400 g/L sucrose, GFADENA produced 135 ethanol, which increased 17% compared wild-type strain. addition, 145 ethanol by simultaneous...

10.1007/s00253-025-13446-w article EN cc-by-nc-nd Applied Microbiology and Biotechnology 2025-03-19

High-precision relative-state measurement technology is one of the key technologies for achieving precision formation flying distributed spacecraft. This paper conducts a comprehensive analysis formation-flying projects spacecraft in various countries. In context practical application, specific mission configuration, orbit distribution, technology, and payload project are summarized. On this basis, relative state techniques outlined first time, using non-autonomous techniques, autonomous new...

10.3390/aerospace9070362 article EN cc-by Aerospace 2022-07-06

In this work, the adsorption and sensing behavior of Ag-doped MoSe2/ZnO heterojunctions for H2, CH4, CO2, NO, CO, C2H4 have been studied based on density functional theory (DFT). gas analysis, energy, distance, transfer charge, total electron density, states (DOS), energy band structure, frontier molecular orbital, work function (WF) each has calculated. Furthermore, reusability stability also studied. The results showed that great potential to be a candidate highly selective responsive...

10.3390/nano13182510 article EN cc-by Nanomaterials 2023-09-07

An ultrathin and simple three-dimensional (3-D) frequency-selective rasorber with a passband located between two absorption bands is proposed. The are obtained by employing commercial magnetic materials in the channel realized using epsilon-near-zero tunneling waveguides. attractively feature achieved utilizing effect at cutoff frequency of metallic waveguides arbitrary length, permitting overall thickness shrink into same as that absorber. A prototype only 0.108 <italic...

10.1109/lawp.2022.3184390 article EN IEEE Antennas and Wireless Propagation Letters 2022-06-17

As the global temperature continues to rise, people have become increasingly concerned about climate change. In order help China effectively develop a carbon peak target completion plan, this paper proposes emission prediction model based on improved whale algorithm-optimized gradient boosting decision tree, which combines four optimization methods and significantly improves accuracy. This uses historical data verify superiority of tree optimized by algorithm. addition, study also predicted...

10.3390/su132112302 article EN Sustainability 2021-11-08

10.1016/j.infrared.2024.105347 article EN Infrared Physics & Technology 2024-05-21
Coming Soon ...