Search Results - Jian Chen

Integrating model-based systems engineering (MBSE) and reliability analysis is challenging due to the lack of life-cycle reliability consideration in system design, difficulty in tracking design changes in reliability modeling, and limited quantitative analysis support in system modeling. To address...

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ObjectiveThis study aims to develop an artificial intelligence model and web-based application for the automatic detection of 21 commonly used auricular acupoints based on the YOLOv11 neural network.MethodsA total of 660 human ear images were collected from three medical centers. The LabelMe annotat...

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The significance of coal mine gas control in the field of engineering cannot be underestimated [...]

Surface settlement induced by ground disturbances during pipe-jacking tunnel construction poses a persistent risk, with progressive deformation potentially leading to surrounding structural collapse. Accurate settlement prediction provides advance risk warning and enables proactive deformation risk...

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Group A <i>Streptococcus</i> (GAS) imposes a significant global health burden across all age groups, annually causing over 600 million cases of pharyngitis and more than 18 million severe invasive infections or sequelae. The resurgence of scarlet fever globally and streptococcal toxic sh...

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To enhance riding comfort for drivers of heavy-duty vehicles, this paper introduces a novel adaptive prescribed performance control (APPC) for active seat suspension systems. The model incorporates dynamic friction and hysteresis damping effects to capture the complex behavior of the seat suspension...

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In this paper, we propose a timing synchronization scheme based on Gold sequences modulated on a single subcarrier for the orthogonal frequency-division multiple access passive optical network (OFDMA-PON). The intensity-modulation and direct-detection real-time experimental demonstrations are carrie...

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Autonomous valet parking technology refers to a vehicle’s use of onboard sensors and line-controlled chassis to carry out a fully automatic valet parking function, which can greatly improve the driver’s experience. This study focuses on autonomous parking, employing environmental modeling and vehicl...

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Aldehyde dehydrogenase 1 (ALDH1) is an important aldehyde-metabolizing enzyme that plays a key role in various biological processes, such as regulating cellular growth, modulating retinoic acid (RA) signaling pathways, and contributing to stem cell function. It is recognized as a crucial biomarker n...

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Two new species of Fulvifomes are described from specimens collected in South America (Ecuador and Bolivia) based on morphological and molecular evidence. The species Fulvifomes bolivianus is characterized by perennial, pileate, solitary basidiocarp; ungulate pilei; olivaceous, encrusted, rough, con...

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Certain root hemi-parasitic tree species hold significant economic value, yet they are challenging to cultivate artificially. Therefore, understanding how soil conditions and host plants influence the growth of these species is crucial. The endemic tree species Malania oleifera, native to the karst...

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Acute lung injury (ALI) is a common, life-threatening lung disease with a high mortality rate, primarily associated with acute and severe inflammation of the lungs. There are many factors that lead to ALI, and abnormally advanced regulated programmed cell death (RCD) is considered to be an important...

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Lithium-ion batteries (LIBs) are widely used as energy storage units in electric vehicles, mobile phones, and other electric devices due to their high voltage, large capacity, and long cycle life. Lithium-ion batteries are prone to thermal runway (TR), resulting in fires and explosions, which can se...

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Low complexity and effective symbol timing recovery (STR) algorithm is a serious challenge for high speed NG-EPON system with 25&#x00A0;Gb&#x002F;s serial bit-rate per channel. In this paper, the frequently used nonlinear function based timing algorithms are compared in 25&#x00A0;Gb&...

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White pollution is an increasingly serious concern. Consequently, the development of green degradable packaging materials has become a research focus. We incorporated different concentrations of clove essential oil (Ceo) (0 %, 0.5 %, 0.75 %, 1.0 %, and 1.25 %, w/w) into modified tapioca starch to fo...

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We report on frequency down-conversion of dual-wavelength (DW) Raman fiber laser in a periodically poled lithium niobate-based optical parametric oscillator. The DW pump source was fixed at 1060 and 1111&#x00A0;nm that was obtained based on stimulated Raman scattering effect by combining a home-...

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In this paper, we present a novel blind common phase error estimation method in coherent orthogonal frequency division multiplexing systems using projection histogram-assisted processing. In the proposed algorithm, the constellation of the signal distorted by common phase noise is regarded as a tilt...

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Neutrophil elastase is a serine protease secreted by neutrophils that plays a crucial role in the onset and progression of various respiratory diseases. The imbalance between neutrophil elastase and its endogenous inhibitors can contribute to the onset and progression of respiratory diseases such as...

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Accurate forecasting of photovoltaic (PV) power generation is crucial for optimizing grid operation and ensuring a reliable power supply. However, the inherent volatility and intermittency of solar energy pose significant challenges to grid stability and energy management. This paper proposes a lear...

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<h4>Background</h4>This study investigated the effects of adding neuromuscular electrical stimulation (NMES) to exercise therapy on pain, knee function, quadriceps strength, and the ratio of activation of the Vastus Medialis Oblique (VMO) to Vastus Lateralis (VL) muscles in people with P...

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