Search Results - Xuan Yu

This study develops species-specific assessment models for carbon sink in marine aquaculture (CSMA) using provincial data from China’s coastal regions (2004–2023). Key findings are as follows: (1) Cumulative CSMA reached 46.3618 million tonnes, exhibiting three growth phases—initial fluctuations (20...

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How to break the vicious cycle of poverty and ecological degradation is widely concerned and discussed. In the poverty alleviation practices in China, ecological poverty alleviation (EPA) is regarded as an important way to synthesize the dual goals of poverty reduction and environmental protection a...

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This paper resolves the predefined-time control problem for multi-agent systems under predefined performance metrics and state constraints, addressing critical limitations of traditional methods—notably their inability to enforce strict user-specified deadlines for mission-critical operations, coupl...

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Background: Plexiform neurofibromas (PNF) are highly vascular tumors with the potential for significant growth. Surgical removal of giant PNF is often challenging because of intraoperative hemorrhage. This study proposed and evaluated an innovative surgical approach involving FENCY ligation and the...

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Synthetic cathinones are a class of new psychoactive substances, characterized by strong addictiveness, great diversity, rapid updates, and similar structures. Among them, 3-fluoromethcathinone (3-FMC) and 4-fluoromethcathinone (4-FMC) are two positional isomers of the second-generation synthetic ca...

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To tackle the low-accuracy problem with analyzing urine component concentrations in real time, a fully automated dipstick analysis device of urine dry chemistry was designed, and a prediction method combining an image acquisition system with a whale optimization algorithm (WOA) for BP neural network...

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A high-order-tilted fiber Bragg gratings (HO-TFBG) with superposed refractive index (RI) modulation written by a femtosecond laser and a phase mask has been demonstrated. The superposed grating structure is realized by the combined action of the pure ±1 order pulses interference and the h...

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