Search Results - Fan Liu
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MIMO-ISAC Precoding Design Toward Random Signals
Published 2025-08-01Get full textIntegrated Sensing And Communications (ISAC) based on reusing random communication signals within the existing network architecture may drastically reduce implementation costs, thereby accelerating the integration of sensing functionalities into current communication networks. However, the randomnes...
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Contrasting effects of irrigation practice on soil respiration and carbon turnover in wheat and maize season
Published 2025-08-01Get full textIrrigation plays a pivotal role in regulating soil respiration (RS) in agricultural ecosystems. Currently, the effects of traditional surface irrigation on RS are well-documented, but the influence of subsurface drip irrigation remains poorly understood, even though this knowledge is critical for gl...
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Numerical Analysis on Thermal Tuning Efficiency and Thermal Stress of a Thermally Tunable SG-DBR Laser
Published 2016-01-01Get full textThermally tunable sampled grating distributed Bragg reflector (SG-DBR) lasers are very attractive for applications of optical coherent systems, where light sources with narrow linewidth are key requirements. In this paper, we focus on the thermal tuning efficiency and the thermal stress field of suc...
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Parallelized Kalman Filters for Mitigation of the Excess Phase Noise of Fast Tunable Lasers in Coherent Optical Communication Systems
Published 2018-01-01Get full textNumerical and experimental investigations are carried out on the performance of parallelized Kalman filters applied for mitigation of the excess phase noise of fast tunable lasers. Based on the characterization of the phase noise of a sampled grating distributed Bragg reflector (SG-DBR) laser, the p...
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The Combination of Safety, Attractiveness, and Accessibility Lead to Bias in Inventory of Wetland Plants on the Qinghai‐Tibet Plateau
Published 2025-06-01Get full textABSTRACT Assessments of inventory incompleteness often focus on terrestrial taxonomic groups, with less attention given to freshwater ecosystem groups. In this study, we constructed a wetland plant database for the Qinghai‐Tibet Plateau (QTP) and evaluated the inventory incompleteness of wetland pla...
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Low-altitude Secure Communication Driven by Deep Reinforcement Learning: An Integrated Sensing and Communication Design
Published 2025-08-01Get full textTo address the physical layer security challenges in low-altitude Unmanned Aerial Vehicle (UAV) communications, this paper proposes an Integrated Sensing And Communication (ISAC) scheme. For the proposed ISAC scheme, an online optimization framework for UAV trajectory and communication resource allo...
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A statistical sensing method by utilizing Wi-Fi CSI subcarriers: Empirical study and performance enhancement
Published 2024-07-01Get full textIn modern Wi-Fi systems, channel state information (CSI) serves as a foundational support for various sensing applications. Currently, existing CSI-based techniques exhibit limitations in terms of environmental adaptability. As such, optimizing the utilization of subcarrier CSI stands as a critical...
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Homocysteine and thyroid diseases
Published 2025-07-01Get full textHomocysteine (Hcy) is an important intermediate product in methionine metabolism which plays a key role in the methylation of DNA, RNA and proteins. High level of Hcy can induce endothelial cell damage, promote the release of inflammatory factors, stimulate oxidative stress and inhibit the fibrinoly...
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Epidemiological trends of urolithiasis in working-age populations: Findings from the global burden of disease study 1990-2021.
Published 2025-01-01Get full text<h4>Background</h4>One of the most prevalent urinary disorders worldwide, urolithiasis has symptoms and a high rate of recurrence. It has placed a significant strain on the global economy and health care system, particularly among those aged 20-54. Comprehensive research on the global bu...
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Feeding a Bitter Mix of Gentian and Grape Seed Extracts with Caffeine Reduces Appetite and Body Fat Deposition and Improves Meat Colour in Pigs
Published 2025-07-01Get full textDietary bitter compounds such as caffeine have the potential to reduce backfat in pigs. However, the use of caffeine as a feed additive has restrictions in many countries. It was hypothesised that grape seed and gentian plant extracts (GG) could replace caffeine in feed due to their bitterness and a...
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Antioxidant Activity of <i>Radix Cyathula officinalis</i> Kuan Polysaccharides and Their Modulatory Effects on the Gut Microbiota of <i>Caenorhabditis elegans</i>
Published 2025-07-01Get full textPolysaccharides isolated from <i>Radix Cyathula officinalis</i> Kuan (RCP) are key bioactive components with immunomodulatory, antioxidant, and anti-inflammatory effects. Their efficacy varies according to their geographic origin and processing methods. However, the systemic anti-aging m...
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Signal Design for Communication Centric ISAC: State of Art and Future Aspects
Published 2025-08-01Get full textIntegrated Sensing And Communications (ISAC), a key technology for 6G networks, has attracted extensive attention from both academia and industry. Leveraging the widespread deployment of communication infrastructures, the integration of sensing functions into communication systems to achieve ISAC ne...
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Use of transcriptome sequencing to explore the effect of CSRP3 on chicken myoblasts
Published 2023-04-01Get full textThe mechanisms that regulate the specificity and maintenance of chicken muscle fiber types remain largely unknown. In mammals, CSRP3 has been shown to play a vital role in the maintenance of typical muscle structure and function. This study investigated the role that CSRP3 plays in chicken skeletal...
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PGC-1α differentially regulates the mRNA expression profiles of genes related to myofiber type specificity in chicken
Published 2020-08-01Get full textPrevious studies on mammals showed that peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α) played a prominent role in regulating muscle fiber type transition and composition. However, the role of PGC-1α in chicken muscle has seldom been explored. To investigate the effect of PG...
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Performance of ChatGPT-4o and Four Open-Source Large Language Models in Generating Diagnoses Based on China’s Rare Disease Catalog: Comparative Study
Published 2025-06-01Get full textAbstract BackgroundDiagnosing rare diseases remains challenging due to their inherent complexity and limited physician knowledge. Large language models (LLMs) offer new potential to enhance diagnostic workflows. ObjectiveThis study aimed to evaluate the diagnostic...
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Self-degradable “gemini-like” ionizable lipid-mediated delivery of siRNA for subcellular-specific gene therapy of hepatic diseases
Published 2025-06-01Get full textTailored lipid nanoparticles (LNPs)-mediated small interfering RNA (siRNA) nanomedicines show promise in treating liver disease, such as acute liver injury (ALI) and non-alcoholic steatohepatitis (NASH). However, constructing LNPs that address biosafety concerns, ensure efficient delivery, and targe...
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