Publications by authors named "Hongjun Meng"

Article Synopsis
  • The paper tackles the challenges of controlling soft robots, specifically focusing on a quadruped soft robot using a new method called genetic algorithm-optimized PID for walking control.
  • It involves creating a control model that connects valve voltage to leg bending, utilizing the robot's unique leg design and bend sensors to improve locomotion.
  • Experimental results showed significant enhancements in the robot's performance, increasing walking speed, reducing error rates and overshoot, and improving response times compared to traditional tuning methods.
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Article Synopsis
  • * The research found that significant reductions in root suberin (80-95%) did not negatively impact root hydraulic conductivity under normal conditions, challenging previous assumptions about the relationship between suberin and water transport.
  • * Additionally, the study observed issues like iron deficiency and altered nutrient translocation, suggesting that while suberin impacts nutrient transport, the relationship between suberin levels and root water transport is complex and not straightforward.
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Twelve-oxo-phytodienoic acid (OPDA), the cyclopentenone precursor of jasmonic acid (JA), is required for the wounding response of plants. OPDA is derived from plastid-localized α-linolenic acid (α-LeA; 18:3) via the octadecanoid pathway, and is further exported from plastids to the cytosol for JA biosynthesis. However, the mechanism of OPDA transport from plastids has yet to be elucidated.

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Triacylglycerols (TAGs) are the major storage form of seed oil in oilseed plants. They are biosynthesized de novo in seed plastids and then transported into the endoplasmic reticulum. However, the transport mechanism for plastid fatty acids in developing seeds remains unknown.

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Background: In the past few decades, microalgae biofuel has become one of the most interesting sources of renewable energy. However, the higher cost of microalgae biofuel compared to that of petroleum prevented microalgae biofuel production. Therefore, the research on increasing lipid productivity from microalgae becomes more important.

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Ionic aluminum (Al) in acidic soils, comprising approximately 50% of arable land globally, is highly toxic to most plant species. Populus grow naturally in acidic soils and tolerate high concentrations of Al. Multidrug and toxic compound extrusion (MATE) family genes in plants are involved in responses to Al tolerance.

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Hydraulic servomechanism is the typical mechanical/hydraulic double-dynamics coupling system with the high stiffness control and mismatched uncertainties input problems, which hinder direct applications of many advanced control approaches in the hydraulic servo fields. In this paper, by introducing the singular value perturbation theory, the original double-dynamics coupling model of the hydraulic servomechanism was reduced to a integral chain system. So that, the popular ADRC (active disturbance rejection control) technology could be directly applied to the reduced system.

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