Search Results - Qinglong An

Active power decoupling (APD) technology demonstrates significant advantages in addressing the mismatched second-order ripple power issue in single-phase rectifiers. However, conventional methods typically require additional voltage or current sensors to achieve precise decoupling control, thereby i...

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Breaking the strength-corrosion tradeoff in fine-grained Al alloys remains elusive due to incompatible grain boundary requirements. We report laser-melting-induced hierarchical fine twin architecture where coherent twin boundaries (spacing ∼3 µm) simultaneously enhance hardness (14% higher) and corr...

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Microbial communities are fundamental drivers of biogeochemical processes within various habitats of lake ecosystems. While differences in bacterial community composition among habitats have been well documented, our knowledge about the roles of different groups of microbes in maintaining the divers...

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ABSTRACT Astragalus membranaceus and Codonopsis pilosula are traditional Chinese medicines known for their tonifying effects, which are linked to the metabolism of their polysaccharide components in the gut. However, the role of gut microbiota in the degradation of these polysaccharides to butyric a...

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UPVC (Unplasticized Polyvinyl Chloride) is a novel construction material. Currently, there is a lack of comprehensive research on the fundamental mechanical properties of this material, particularly regarding UPVC square tubes, for which studies are rarely reported. To investigate the axial compress...

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Aiming at tackling the challenges of traditional classification methods, which are labor-intensive, time-consuming, and inefficient, a nitrogen-efficient wheat variety classification method using support vector machine-extreme gradient boosting (SVM-XGBoost) based on unmanned aerial vehicle (UAV) hy...

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ABSTRACT Objectives This study aims to optimize the parameters of osseodensification drilling (OD) to improve the primary stability of dental implants in low‐density bone. Material and Methods Polyurethane foam blocks (PFB) of 0.160 g/cm3 were used to simulate low‐density bone (Type IV bone). Two dr...

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This study addresses the urgent need for the rapid, non-destructive assessment of key soybean components, including moisture, fat, and protein, using near-infrared (NIR) spectroscopy. This study provides technical and theoretical support for achieving the efficient and accurate detection of major so...

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<h4>Background</h4>Percutaneous coronary intervention (PCI), fibrinolysis and the combination of both methods are current therapeutic options for patients with ST-segment elevation myocardial infarction (STEMI).<h4>Methods</h4>We searched PubMed, EMBASE, Google scholar and Co...

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Negative capacitance (NC) germanium (Ge) p-channel field effect transistors with different ferroelectric parameters are investigated by the analytical model. The channel surface potential amplification induced by the NC effect, which determines the subthreshold swing (SS) and the drain current <i...

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Blueberry (Vaccinium spp.) is well known for its rich anthocyanins and other bioactive compounds, which helps preventing from cardiovascular disease and other chronic illnesses. Over the past decades, blueberry has been cultured in many areas of China, thus became the fastest-growing species in frui...

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Conclusions: We identified significant favorable effects of FGF21 analogs in improving lipid profiles and elevating circulating ADP levels in overweight and obese adults. Future studies are needed to evaluate the clinical benefits in this area of research.

Polyaniline (PANI) is an important conductive-polymer gas-sensing material with working temperature and mechanical flexibilities superior to those of conventional metal oxide sensing materials. However, its applicability is limited by its low sensitivity, high detection limits, and long response/rec...

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Apple (<i>Malus domestica</i> Borkh.) is an economically important fruit. The use of nitrate by plants plays a crucial role in their growth and development, and its absorption and dispersal are controlled by nitrate transport proteins (NRTs). In this study, we investigated the potential...

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This study aimed to optimize the extraction of polysaccharides from waste stems of Trollius chinensis Bunge (TCS) using an ultrasonic-assisted combined extraction method (UEM) and evaluate their potential for cosmetic applications. The optimal extraction conditions, determined based on antioxidant a...

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ABSTRACT Haima Cold Seep is an active cold seep system in the South China Sea with a thriving biological community that plays an important role in the global carbon cycle. Despite its ecological importance, we know little about the variability of its microbial communities and depth-related structure...

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Magnetic lubricants are emerging as advanced lubricants with controlled flowability and enhanced lubrication and heat transfer capabilities, showing potential for use in extreme conditions such as aerospace. Although their excellent properties have been preliminarily confirmed, the mechanisms by whi...

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The peels and seeds of Alpinia katsumadai and its adulterants A. henryi K. Schum. and A. blepharocalyx K. Schum. were comparatively analyzed for their chemical compositions. Targeted metabolomics based on liquid chromatography-mass spectrometry (LC-MS) identified a total of 1 009 polyphenolic metabo...

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Carbon fiber-reinforced thermoplastic composites (CFRTPs) are increasingly adopted in the aerospace and automotive industries due to their recyclability and superior toughness. However, existing studies predominantly focus on machining metrics, with limited insights into the thermal-mechanical inter...

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Parkinson's disease (PD), a progressive neurodegenerative disorder, is marked by the degeneration of dopaminergic neurons. Emerging evidence highlights the critical involvement of neuronal ferroptosis and microglial pyroptosis in PD pathogenesis. In this study, we first characterized systemic i...

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