Juan Li

ORCID: 0000-0001-6950-8329
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About
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Research Areas
  • Smart Grid and Power Systems
  • Power Systems and Renewable Energy
  • Thin-Film Transistor Technologies
  • Power Systems and Technologies
  • Advanced Algorithms and Applications
  • Perovskite Materials and Applications
  • High-Voltage Power Transmission Systems
  • Privacy-Preserving Technologies in Data
  • Silicon and Solar Cell Technologies
  • Advanced Sensor and Control Systems
  • HVDC Systems and Fault Protection
  • Phase Equilibria and Thermodynamics
  • Power Systems Fault Detection
  • Conducting polymers and applications
  • Industrial Technology and Control Systems
  • Flame retardant materials and properties
  • Advanced Battery Technologies Research
  • Analytical Chemistry and Chromatography
  • Chalcogenide Semiconductor Thin Films
  • Civil and Geotechnical Engineering Research
  • Vibration Control and Rheological Fluids
  • Optimal Power Flow Distribution
  • Advanced Nanomaterials in Catalysis
  • Advancements in Battery Materials
  • Vehicular Ad Hoc Networks (VANETs)

Nankai University
2006-2025

Inner Mongolia Agricultural University
2010-2025

Nanjing University of Aeronautics and Astronautics
2021-2024

Shanghai Electric (China)
2023

BOE Technology Group (China)
2020

Ministry of Natural Resources
2020

Land Consolidation and Rehabilitation Center
2020

Shaanxi Provincial Land Engineering Construction Group
2020

Tianjin Economic-Technological Development Area
2020

Zhengzhou University
2020

With the high penetration of distributed generations (DGs), conventional radial distribution network is becoming an active (ADN). It has characteristics multisource, multibranch, bidirectional power and fault current flow, as well weak infeed. To provide effective protection for such a network, novel differential scheme, together with new implementation technology, proposed in this paper. In instead using phase currents, positive-sequence component (PSFC) introduced into protection. By...

10.1109/tpwrd.2016.2628777 article EN IEEE Transactions on Power Delivery 2016-11-16

Perovskite solar cells (PSCs) have attracted tremendous attention because of their rapidly growing efficiency and low cost. However, the scalably deposited PSCs, especially spray-coated devices, is still lagging far behind that spin-coated devices complicated crystallization coated precursor ink. Here, we show a ink with an ultrawide processing window (more than 40 min) for spray-coating by adjusting component, which benefits scalable deposition perovskite films. Coupled antisolvent...

10.1021/acsami.9b17141 article EN ACS Applied Materials & Interfaces 2019-12-20

Large-scale coal mine dumps are formed during the mining process of resources. These comprise impoverished soil, posing significant challenges for vegetation restoration. To address this problem, soil microbial (EM) agents and fly ash have effectively improved quality. However, effects different application ratios on quality sandy in still unclear. This study aims to explore applicable ratio dumps. employed a field-based potted experiment design. A two-factor complete factorial experimental...

10.3390/su17031201 article EN Sustainability 2025-02-02

Abstract Blade‐coating has emerges as a critical route for scalable manufacturing of perovskite solar cells. However, the N 2 knife‐assisted blade‐coating process under ambient conditions typically yields inferior‐quality films due to inadequate nucleation control and disorderly rapid crystallization. To address this challenge, novel solvent engineering strategy is developed through substitution N‐methyl‐2‐pyrrolidone (NMP) with 1,3‐dimethyl‐1,3‐diazinan‐2‐one (DMPU). The unique...

10.1002/smtd.202402177 article EN Small Methods 2025-03-17

Optimal process conditions for supercritical CO2 extraction of polysaccharides from Artemisia sphaerocephala Krasch. seeds and their monosaccharides were analyzed to provide a theoretical basis identification development. Single-factor experiments orthogonal designs performed determine the effects on polysaccharide yields. The fractionated through ion-exchange chromatography, shown be homogeneous via high-performance size-exclusion chromatography (HPSEC). resultant samples hydrolyzed with...

10.1016/j.indcrop.2014.06.013 article EN cc-by-nc-nd Industrial Crops and Products 2014-07-01

Due to the strong propagation causality of delays between airports, this paper proposes a delay prediction model based on deep graph neural network study from perspective an airport network. We regard airports as nodes and use directed construct airports’ relationship. For adjacent weights edges are measured by spherical distance them, while number flight pairs them is utilized for connected flights. On basis, diffusion convolution kernel constructed capture characteristics it further...

10.1155/2021/6638130 article EN cc-by Journal of Advanced Transportation 2021-03-24

With the accelerating transportation electrification, increasing numbers of electric vehicles (EVs) are connected to distribution networks via vehicle charging stations (EVCSs). Due uncertain behaviors EV users, concentrated high-power during peak hours can result in significant undervoltage issues, affecting regular operation and having detrimental effects on charging. Conventional scheduling methods conducted a centralized way, requiring extensive investment communication infrastructure...

10.3390/pr11092552 article EN Processes 2023-08-25

This paper presents a composite control strategy for the active suppression of vibration due to unknown disturbances, such as external excitation, harmonic effects and spillover, well high-frequency accelerometer measurement noise in all-clamped stiffened plate. The proposed action based on modal approach, consists two contributions including feedback part feedforward part. is well-known PID controller, which widely used increase structure damping improve its dynamic performance close...

10.12989/sss.2014.14.3.327 article EN Smart Structures and Systems 2014-09-25

The nature of the micropipe, a fatal defect in SiC-based device applications, is still not fully understood. In this work, birefringence images micropipes 6H-SiC crystals along c axis have been observed and simulated detail. Based on Frank's theory, intensity contours for viewed end-on derived by considering photoelastic anisotropy silicon carbide. results are good agreement with experimental observations.

10.1107/s0021889808024862 article EN Journal of Applied Crystallography 2008-08-29

As an effective supplement to centralized renewable sources, distributed generation (DG) will be greatly developed in the future China. The DG penetration rate is becoming higher and power system distribution network recent years. With high proportion of DG, quality, protection control affected. impacts from five aspects, such as supply reliability, harmonic level, line loss rate, voltage qualification short circuit current level are mainly studied this paper. To quantitatively evaluate...

10.1109/ei2.2017.8245231 article EN 2017-11-01

10.1109/wcnc57260.2024.10571185 article EN 2022 IEEE Wireless Communications and Networking Conference (WCNC) 2024-04-21

To improve the sensitivity of fluorescence detection in biochip, a new kind substrates was developed by agarose coating on silica opal film. In this study, film fabricated glass substrate using vertical deposition technique. It can provide stronger signals and thus sensitivity. After with agarose, hybrid could 3D support for immobilizing sample. Comparing agarose-coated substrate, selectively enhance particular high when stop band overlapped emission wavelength. A DNA hybridization...

10.1166/jnn.2010.2226 article EN Journal of Nanoscience and Nanotechnology 2010-04-29

This paper found that the crystalline volume ratio (Xc) of μc-Si deposited on SiNx substrate is higher than 7059 glass. At same silane concentration (SC) (for example, at SC=2%), Xc more 64%, but just 44% if Conning 7059. It considered `hills' would promote growth thin film, which has been confirmed by atomic force microscope (AFM) observation. Comparing several film transistor (TFT) samples whose active-layer were under various SC, this appropriate SC for used in TFT as active layer should...

10.1088/1009-1963/15/6/033 article EN Chinese Physics 2006-05-31

Because the choice and important of learning rate , higher η faster convergence it will be, but may cause instability or function vibration if is too high; lower, although avoid instability, speed reduce. In order to solve contradiction, we introduce a variable this time same as that previous time, weighted summation value increase results in regulation right at stable regulation; contrary indicates certain now result make decrease play role stability convergence.

10.4028/www.scientific.net/amm.50-51.423 article EN Applied Mechanics and Materials 2011-02-01

Abstract In order to address that current coordinated power supply research of distribution networks only considers single voltage level, modes for multi-voltage considering 110kV lines are established, and optimized based on economic performance load capability. Firstly, the connection lines, interconnecting structure substations allocation transformers, typical medium-voltage constructed, mode attributes calculated. Then, analysis capability, optimal match parameters network/substation...

10.1088/1742-6596/1549/5/052089 article EN Journal of Physics Conference Series 2020-06-01
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