Search Results - X. Li

This paper aims to explore the pathways through which artificial intelligence (hereinafter – AI) contributes to enhancing new quality productivity, based on empirical analysis of Chinese listed enterprises. The analysis covers panel data from 12,880 observations for 2013-2022, excluding companies fr...

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<p>Particle acidity serves as a key determinant in atmospheric chemical processes. Emerging concerns regarding aerosol acidity trends have been highlighted amid China's sustained initiatives to mitigate emissions of both acidic and alkaline precursors, especially in North China, which is...

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<p>Particulate organic carbon (POC) serves as the main carrier of the biological pump and determines its transmission efficiency, yet the transformation processes of POC remain incompletely understood. This study reports the vertical distribution of POC, dissolved inorganic carbon (DIC), <s...

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The complex transient flow field in the entire hydraulic system of a large pump turbine under load rejection conditions, involving the simultaneous closing of the ball valve and guide vanes, is comprehensively investigated using the Re-Normalization Group (RNG)k-e model and Fast Fourier Transform (F...

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For more effective removal of the hidden troubles from early minor damages before their spreading out, hyperbranched polyurethane crosslinked by dioxyphenylalanine-Fe3+ (DOPA-Fe3+) and histidine-Zn2+ (His-Zn2+) coordination bonds is synthesized. By taking advantage of the cascading variation of the...

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BACKGROUND AND OBJECTIVES: In the context of sustainable development, renewable energy technology innovation is not only a vital approach for enhancing energy efficiency but also a critical driver of low-carbon economic transition. Throughout this process, the importance of climate risks and policy...

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<p>The shapes of ice crystals play an important role in global precipitation formation and the radiation budget. Classifying ice crystal shapes can improve our understanding of in-cloud conditions and these processes. Existing classification methods rely on features such as the aspect ratio of...

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<p>A new aerodynamic injection system has been designed for a wide particle size range, combining a new pre-focus structure, a smaller buffer chamber, and a five-stage lens. Compared with previous injection systems, the new design adds virtual impactors and pre-focus structures, while reducing...

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Indoor 3D reconstruction is a significant research topic in computer vision and computer graphics, focusing on the construction of complete and accurate models of indoor scenes from 3D point cloud data. Traditional data-driven methods often demonstrate poor robustness, low efficiency, and insufficie...

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Injectable platelet-rich fibrin (i-PRF) has been proven to be able to promote tissue regeneration and applied in the treatment of diseases in the maxillofacial region, but whether it can be used to construct injectable tissue-engineered bone remains inconclusive. The aim of this study was to investi...

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New fully aromatic poly(phosphazene-aryl amides) were prepared by polycondensation reaction of our synthesized aromatic diamine: 1,1,3,5-tetraphenoxy-4,6-bis(4-aminophenoxy)oligocyclotriphosphazene (monomer 1) with terephthaloyl dichloride. Their chemical structure and composition were characterized...

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Real-time analysis and mining of vehicle GPS data is essential for effective traffic regulation. Currently, most vehicle analysis algorithms based on GPS data are designed for static datasets, with fewer algorithms addressing dynamic streaming GPS data. Moreover, the limited number of real-time algo...

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Based on methods such as airborne oblique photogrammetry and laser scanning, high-precision urban 3D point clouds can be obtained. However, existing airborne 3D data acquisition techniques are prone to interference from dense building occlusions or vegetation cover, making it difficult to capture co...

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Parahepialus Zou & Zhang, 2010 es sinonimizado con Thitarodes Viette, 1968. Se describe Thitarodes quadrata Jiang, Li, Li, Li & Han, sp. n. de Sichuan, China. Se dan ilustraciones del adulto y de la genitalia para la especvie tipo de Parahepialus y de la nueva especie.

In this work, nickel citrate (NC) was combined with ammonium polyphosphate (APP) to improve the flame retardance of thermoplastic polyurethane (TPU). And, the influence of nickel citrate on the flame retardance of TPU/APP composites was investigated by cone calorimeter test (CCT), thermogravimetric...

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As land resources become increasingly scarce, urban spatial development patterns in Chinese cities are now shifting from incremental expansion to inventory optimization. Accurate identification of inefficient urban residential land is the key for government to make regeneration policy and improve th...

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<p>The light-absorbing organics, namely brown carbon (BrC), can significantly affect atmospheric visibility and radiative forcing, yet current knowledge of the chemical composition of BrC is largely limited to a number of certain classes of compounds; the chemical and optical properties, and p...

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In the context of increasing pressure on marine species, effective and automated methodologies for biodiversity monitoring are essential, particularly in sensitive ecosystems such as the Mediterranean Sea. This study presents an integrated deep learning approach for multi-object tracking and species...

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Polymer brushes with 2,2,6,6-tetramethyl-4-piperidyl methacrylate (TMPM) units, grafted on the cross-linked polystyrene (PS) microspheres, were synthesized via surface-initiated ARGET (activators regenerated by electron transfer) ATRP (atom transfer radical polymerization). They were further oxidize...

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