Search Results - Long Li

A novel broadband metasurface (MTS) antenna array with high front-to-back ratio (FBR) is proposed for 28 GHz millimeter-wave applications. With slot pairs loaded on patch cells, an aperture-coupled slotted-mushroom MTS antenna is designed to obtain broadband radiation characteristics with a compact...

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Abstract Planetary flows are shaped by interactions at scales much smaller than the flows themselves, with mesoscale and sub–mesoscale eddies playing key roles in mixing, particle transport and tracer dispersion. To capture these effects, we introduce a stochastic formulation of the primitive equati...

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BackgroundNeonatal lupus erythematosus (NLE) is a rare autoimmune disorder caused by the transplacental passage of maternal autoantibodies, such as anti-Ro/SS-A and anti-La/SS-B. It can affect multiple organ systems, resulting in various symptoms. Fulminant myocarditis, a severe inflammatory heart c...

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Exposure to microplastics poses potential risks to human health, particularly during pregnancy and early life; however, research in this field remains scarce. Therefore, we aimed to investigate the association between prenatal microplastic exposure and telomere length (TL), a recognized marker of bi...

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Unlike traditional vision-based camera tracking, human indoor localization and activity trajectory recognition also employ other methods such as infrared tracking, acoustic localization, and locators. These methods have significant environmental limitations or dependency on specialized equipment. Cu...

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Complementary to classical transition-metal-catalyzed cross-coupling reactions, transition-metal-catalyzed hydrofunctionalization of alkenes has emerged as a powerful strategy for direct and rapid construction of sp3-sp3 linkages. Among various metals, cobalt has been widely used as a catalyst in th...

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As the core part of the portable mass spectrometers, the ion trap mass analyzer is equivalent to the "engine", which determines the analytical capability of the mass spectrometer. Ion trap mass analyzers require a high degree of precision in both machining and assembly. However, there will...

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The importance of zinc (Zn) as a micronutrient essential for plant growth and development is becoming increasingly apparent. Much of the world's soil is Zn-deficient, and soil-based Zn deficiency is often accompanied by Zn deficiency in human populations. MicroRNAs (miRNAs) play important roles...

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Research purpose This review investigated the effects of core strength training on the competitive performance of players participating in striking combat sports. By analyzing karate, taekwondo, boxing, Chinese martial arts, and Muay Thai, the study examined the effects of core strength training on...

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Optimal planting density and proper fertilization method are important factors to improve maize yield and nutrient utilization. A two-year (2016 and 2017) field experiment was conducted with three plant densities (6.0, 7.5 and 9.0 plants m–2) and three fertilization modes (no fertilizer, 0F; one-off...

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In the calibration process of urban flood and non-point source pollution models, obtaining sufficient site-specific sensitive parameters and their variation trends remains challenging. In this study, a modified Morris screening method was established and used to evaluate the parameters of the green...

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This research classified vegetation types and evaluated net primary productivity (NPP) of southern China's grasslands based on the improved comprehensive and sequential classification system (CSCS), and proposed 5 thermal grades and 6 humidity grades. Four classes of grasslands vegetation were...

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This paper proposes a new method to generate a two-dimensional (2D) Airy beam and Airy autofocusing beam by using the scalar holographic metasurface with amplitude-phase modulation in the microwave band. The proposed holographic metasurface comprises subwavelength patch unit cells with a period of f...

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The Qinghai–Tibet Plateau is one of the most geologically active regions in the world, characterized by significant geomorphic variation and a wide range of geological hazards. The multifactorial coupling of tectonic movements, geomorphological evolution, climate variability, and lithological charac...

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The Alpine Periglacial Weathering Zone (APWZ) is a critical transitional belt between alpine vegetation and glaciers, and a highly sensitive region to climate change. Its dynamic variations profoundly reflect the surface environment’s response to climatic shifts. Taking Gongga Mountain as the study...

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Abstract Conventional pneumatic soft robots require complex control systems with multiple valves and circuits due to coupled structural and pneumatic dynamics. A strategy is presented to program the pneumatic response characteristics of soft actuators by embedding elastic fibers with tailored materi...

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Brucellosis, caused by <i>Brucella</i> species, remains a significant zoonotic disease affecting both human and animal health worldwide. Among the outer membrane proteins (Omps) of <i>Brucella</i>, Omp16 has emerged as a key immunogenic target with potential applications in v...

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A number of plant pathogenic species of Phytophthora are known to produce different classes of secretory proteins during interactions with their hosts. Although several small cysteine-rich (SCR) secretory proteins, conserved in oomycete pathogens, have been identified in Phytophthora, their specific...

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