Yonglei Li

ORCID: 0000-0001-9452-8145
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About
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Research Areas
  • Soil Mechanics and Vehicle Dynamics
  • Agricultural Engineering and Mechanization
  • Advancements in Photolithography Techniques
  • Integrated Circuits and Semiconductor Failure Analysis
  • Soil Management and Crop Yield
  • Granular flow and fluidized beds
  • Covalent Organic Framework Applications
  • Supercapacitor Materials and Fabrication
  • Optical Coatings and Gratings
  • Hydrological Forecasting Using AI
  • Nanomaterials for catalytic reactions
  • Hydrology and Drought Analysis
  • Metal-Organic Frameworks: Synthesis and Applications
  • Climate variability and models
  • Advanced Surface Polishing Techniques
  • Photonic and Optical Devices
  • Nanowire Synthesis and Applications
  • Silicon Nanostructures and Photoluminescence
  • Carbon Dioxide Capture Technologies
  • Catalysis for Biomass Conversion
  • Membrane-based Ion Separation Techniques
  • Process Optimization and Integration
  • Additive Manufacturing and 3D Printing Technologies
  • Electromagnetic Compatibility and Measurements
  • Plasmonic and Surface Plasmon Research

China Agricultural University
2022-2024

Chinese Academy of Agricultural Sciences
2024

Fudan University
2016-2018

State Key Laboratory of ASIC and System
2016-2018

Qingdao University of Science and Technology
2017

Hebei University of Science and Technology
2013-2016

Suzhou Institute of Nano-tech and Nano-bionics
2012-2016

Chinese Academy of Sciences
2012-2016

China Aerospace Science and Industry Corporation (China)
2016

Guangzhou Institute of Energy Conversion
2016

Miniaturization of functional devices and systems demands new design fabrication approaches for lab-on-a-chip application optical integrative systems. By using a direct laser writing (DLW) technique based on two-photon polymerization (TPP), highly optofluidic refractometer is fabricated demonstrated tubular microcavities coupled with waveguides. Such can support high quality factor (Q-factor) up to 3600 via fiber taper coupling. Microtubes various diameters wall thicknesses are constructed...

10.1039/c6lc01148a article EN Lab on a Chip 2016-01-01

Abstract Selective hydrogenation of phenol to cyclohexanone over a catalyst polyaniline‐functionalized carbon‐nanofiber‐supported palladium (Pd‐PANI/CNF) with sodium formate as the hydrogen source has been studied. Phenol conversion exceeding 99 % was achieved selectivity >99 in aqueous media. In an extension Pd‐PANI/CNF, polymers such polypyrrole (PPY), poly(4‐vinylpyridine) (PVP), and poly(1‐vinylimidazole) (PVI) were further applied Pd‐polymer/CNF for selective hydrogenation. All...

10.1002/cplu.201300238 article EN ChemPlusChem 2013-09-10

Mesoporous carbonaceous materials are synthesized using resol as the carbon precursor, triblock copolymer F127 template and cigarette filters matrix scaffold, exhibit notable phenol adsorption CO<sub>2</sub> capture.

10.1039/c5ra24944a article EN RSC Advances 2015-01-01

We demonstrate hyperbolic metamaterials (HMMs) on a curved surface for an efficient outcoupling of nonradiative modes, which lead to enhanced spontaneous emission. Those high-wavevector plasmonic modes can propagate along the structure and emit into far field, realizing directional light emission with maximal fluorescent intensity. Detailed simulations disclose high Purcell factor spatial power distribution in HMM, agrees experimental result. Our work presents remarkable enhancing capability...

10.1021/acsami.7b19721 article EN ACS Applied Materials & Interfaces 2018-02-13

&lt;p&gt;An oscillating slat shovel has presented a promising application potential in the energy-saving and efficient harvesting of deep rhizome crops. This new type integrated device was developed using gradient amplitude vibration technology. study aims to clarify working characteristics shovels mechanism throwing separation. The coefficient selected characterize separation ability work plane. A motion analysis made calculate swing acceleration An analytical equation then established...

10.54517/ama.v3i1.2047 article EN other-oa Advances in Modern Agriculture 2022-06-26

A detailed photoluminescence (PL) analysis and transmission electron microscopy studies on silicon nanocrystals (SNCs) are presented to probe the carrier recombination mechanism. There exist obvious distinctive phenomena in different sizes of SNCs. Clear evidence for breakdown point quantum confinement PL is confirmed small SNCs; it regarded as inflection SNCs' corresponding electronic states. Moreover, energy-transfer based multiplication SNCs nanotwin also observed between neighboring...

10.1063/1.4826513 article EN Applied Physics Letters 2013-10-14

Liquorice harvesting is the key process in development of liquorice industry. For with about 400 mm growth depth, a lightweight harvester novel oscillating shovel-rod components was developed. Draft force, total torque, specific energy consumption, separation proportion, and soil structure maintenance were used to evaluate performance under varied working conditions, throw intensity torque analyzed. A DEM model developed simulate excavation soil. Three sets single-factor simulation tests one...

10.3390/agriculture12122015 article EN cc-by Agriculture 2022-11-25

The semiconductor industry continually evaluates new materials to improve the process or minimize product variability, which could create measurement challenges for metrology tools in visible and near-infrared (NIR) spectrum. Opaque (i.e., 'hard masks,' 'HM') are placed between resist inner layer) outer layer underlying 3D NAND DRAM processes control etch of high aspect-ratio structures maximize yield. However, longer wavelengths (e.g., IR WL) may be required penetrate properly view measure...

10.1117/12.2655161 article EN 2023-04-18

Grinding and polishing of product parts are difficult points for industrial robots to be used in actual manufacturing. In constant force grinding process, the quality process depends largely on whether normal contact can kept during process. For this reason, an adaptive control method combined with fuzzy logic robot device is proposed paper. method, improvement single neuron proportional integral derivative (PID) adopted applied robots. Through simulation, it found that effectively reduce...

10.1109/icict55905.2022.00035 article EN 2022-03-01

A rapid and facile synthesis method for rod-like ordered mesoporous carbon material (OMC) was developed, in which the phenolic resin used as source precursor solution of SBA-15 employed a hard-template. This new skipped several processes related to preparation SBA-15. The as-synthesized OMC featured rod morphology with lengths 0.7–1 μm, uniformly sized mesopores (5.1 nm), high surface area (795 m2 g–1). Furthermore, showed excellent capacity dye adsorption from aqueous solution.

10.1071/ch15769 article EN Australian Journal of Chemistry 2016-01-01

Sub-2nm On Product Overlay (OPO), scribe line width reduction, and high-order scanner correctibles are driving innovative overlay (OVL) targets. One promising new imaging-based (IBO) OVL target to address such challenging trends in multiple semiconductor segments is a small pitch AIM (sAIM). sAIM essence an IBO with grating (previous layer) beside (current which could be placed few layouts: square, rectangular, Mosaic. In this work, we will present the operational concept performance...

10.1117/12.3009769 article EN 2024-04-10

<title>Abstract</title> In recent decades, shifts in the spatiotemporal patterns of precipitation and extreme temperatures have contributed to more frequent droughts. These changes impact not only agricultural production but also food security, ecological sys- tems, social stability. Advanced techniques such as machine learning deep models outperform traditional by improving meteorolog- ical drought prediction. Specifically, this study proposes a novel model named multivariate feature...

10.21203/rs.3.rs-5286493/v1 preprint EN cc-by Research Square (Research Square) 2024-10-31

The vibration response of soil is a key property in the field agricultural tillage. Vibration components tillage machinery are generally used to reduce resistance and improve work efficiency, pressure variation under low-frequency will affect fragmentation dispersion farmland soil. However, gradient variation, frequency domain response, effective transmission range unclear. A new method based on DEM (Discrete Element Method) presented study vibration. Bench test results showed that peak...

10.20944/preprints202309.0871.v1 preprint EN 2023-09-13
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