Search Results - Yan Li

Obesity among university students is a growing concern with significant implications for physical and mental health. This study aims to examine the associations between body mass index (BMI) and health-related physical fitness among Chinese university students. Data were collected from 14,735 studen...

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D-allulose is a rare sugar with promising applications in food and health industries, owing to its low caloric value and multiple health benefits. In this study, we systematically investigated a thermostable D-allulose 3-epimerase (TcDAEase) from <i>Thermogemmatispora carboxidivorans</i>...

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Engines have always been an important part of the development of the industrial field. With the continuous innovation of technology the requirements for the use of engines have become more stringent. In the current actual work of the engine, the import temperature has approached a thousand degrees,...

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Aiming at the problem of energy exchange in the arc channel of single-phase arc grounding in distribution networks, this paper establishes a three-dimensional, single-phase arc grounding field-circuit coupled mathematical model based on magnetohydrodynamics. It analyzes the process of arc energy exc...

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Colorectal cancer (CRC) is a common malignant tumor with a high mortality rate worldwide. Advanced CRC often leads to liver metastasis, which has a poor prognosis, highlighting the need to investigate the underlying mechanisms. Omics, encompassing genomics, epigenomics, transcriptomics, proteomics,...

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Aiming at the requirements of rapidity, high precision, and robustness for the longitudinal trajectory control of the receiver aircraft in autonomous aerial refueling, a direct lift control (DLC) strategy that integrates incremental nonlinear dynamic inversion (INDI) and nonlinear extended state obs...

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BackgroundThe incidence of insulin resistance, as determined by estimated glucose disposal rate (eGDR), is associated with various morbidities. The relationship between eGDR and chronic liver diseases remains to be explored. This study examined the association between eGDR and the risk of future met...

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Ecological sensitivity analysis is an important foundation of ecological city planning. Because of the complexity and relative factors' diversity in a region, many evaluation methods are being gradual explored and improved. Environment system is almost a grey system owing to the unascertained a...

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Facial authentication has gained widespread adoption as a biometric authentication method, offering a convenient alternative to traditional password-based systems, particularly on mobile devices equipped with front-facing cameras. While this technology enhances usability and security by eliminating...

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In order to meet the demand for high-voltage architectures of 400 V and 800 V in electric vehicle systems, high-power DC-DC converters have become a key focus of research. The Four-Switch Buck–Boost converter has gained widespread application due to its wide voltage conversion range, consistent inpu...

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Colorectal cancer (CRC) is the third most common cancer and a leading cause of cancer-related mortality worldwide, with prognosis significantly deteriorating at advanced stages. While current diagnostic methods, such as colonoscopy and tissue biopsy, are widely employed in clinical practice, they ar...

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Autonomous aerial refueling (AAR) technology is of crucial importance in the aviation field. Accurately predicting the position of the refueling drogue is a core challenge in implementing this technology. An innovative method of a physics-informed neural network (PINN), a fusion of supervised learni...

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The association between soil properties and zinc (Zn) availability, as well as how soil properties affect the Zn translocation from coastal soil to wheat grain, was not well understood. A pot study and field trial were conducted to examine the effects of soil properties and Zn application on grain y...

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Anaerobic oxidation of methane (AOM) is a key methane sink in marine sediments, driven by electron acceptors such as sulfate, nitrate, and metal oxides. Manganese (Mn) oxides, owing to their high oxidizing capacity and rapid turnover, are also recognized as critical oxidants in AOM. However, Mn-AOM...

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Demultiplexing of high-speed Nyquist optical time-division multiplexed (N-OTDM) signal requires ultra-narrow local sampling pulse to avoid the severe inter-symbol-interference (ISI) between each tributary. Unfortunately, generation of such narrow sampling pulse is difficult or usually need complex s...

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Our goal is addressing the problems of preassigned-time projective synchronization and fixed-time projective synchronization of the system that studied in our article, and fuzzy terms, mixed delays, inertial terms and discontinuous activation function are also included in this system. And the result...

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This research focuses on the prescribed-time cooperative output regulation problem within linear multi-agent systems subject to input constraints. The key contribution is the design of a distributed observer-based bounded time-varying state controller and an output feedback protocol. Specifically, t...

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In resistive polymer humidity sensors, the quality of the resistor chips directly affects the performance. Detecting chip defects remains challenging due to the scarcity of defective samples, which limits traditional supervised-learning methods requiring abundant labeled data. While few-shot learnin...

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Accurate fish population estimation is crucial for fisheries management, ecological monitoring, and aquaculture optimization. Traditional manual counting methods are labor-intensive and error-prone, while existing automated approaches struggle with occlusions, small-object detection, and identity sw...

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