Search Results - Wei Sun

In order to solve the problems of low efficiency and accuracy in the traditional detection of tunnel cracks, this paper proposes a tunnel crack detection method based on a UAV (unmanned aerial vehicle) equipped with a high-speed camera and a crack recognition algorithm using the improved multi-scale...

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All-sky radiance assimilation can increase the utilization of satellite observations in cloudy regions and improve typhoon forecasts. This study focuses on the newly launched FengYun-3F satellite equipped with the Microwave Humidity Sounder II (MWHS-II) and develops an all-sky assimilation capabilit...

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Adding a certain amount of Al2O3 to MCrACY could improve its high temperature wear resistance. For this, CoNiCrAlY and micron Al2O3 powder particles were mixed in proportion and then milled in a sealed ball mill to obtain composite CoNiCrAlY/ Al2O3 powder particles a...

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Background In patients with newly diagnosed metastatic prostate cancer (mPCa), the appropriate population for radical prostatectomy (RP) remains unclear.Patients and methods Newly diagnosed mPCa patients were identified from the Surveillance, Epidemiology, and End Results (SEER) database and divided...

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The northeast region of China plays a crucial role in crop production. The leaf beetle <i>Monolepta hieroglyphica</i> (Motschulsky, 1858) (Coleoptera: Chrysomelidae) has emerged as a potential threat to food security in the region. With a wide distribution spanning Asia and Russia, this...

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ABSTRACT Traditionally regarded as a metabolic waste product, lactic acid is now recognized as a crucial molecule in energy metabolism and signal transduction. It regulates various biological processes, including intracellular inflammation and immune responses. Notably, a novel epigenetic modificati...

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Rapidly expanding studies investigate the effects of e-commerce on company operations in the retail market. However, the interaction between agri-food e-commerce (AEC) and the traditional agri-food wholesale industry (AWI) has not received enough attention in the existing literature. Based on the pr...

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Path planning remains a focal point in Unmanned Aerial Vehicle (UAV) research, with autonomous path planning in unknown environments emerging as a particularly active area. Deep Reinforcement Learning (DRL) has become a standard approach for addressing path planning challenges in such environments....

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International industrial transfer has driven rapid construction land expansion in emerging metropolitan areas, posing challenges for sustainable land management. However, existing research has largely overlooked the spatiotemporal patterns and driving mechanisms of this expansion, particularly in So...

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The temporal stability of alpine plant α-diversity remains poorly understood, constraining predictions of biodiversity dynamics. Here, this study examined spatiotemporal patterns in the temporal stability of plant α-diversity (species richness, Shannon, Simpson, and Pielou) across the Tibetan grassl...

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Atrial-esophageal fistula (AEF) is a rare but life-threatening complication after catheter ablation. Neurological deficits represent the second most common clinical manifestation associated with AEF; however, diagnosis is often delayed because initial symptoms can be atypical and easily overlooked....

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African swine fever (ASF) is an acute and highly contagious disease that causes severe economic losses to the swine industry. ASF is caused by infection of African swine fever virus (ASFV) in domestic pigs, leading to almost 100% mortality. However, no effective vaccines and pharmacologic treatment...

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With the overexploitation of mineral resources, the “poor, fine, and miscellaneous” characteristics of sulfide ores in China have become more prominent. The shortage of nonferrous metal resources has become more serious. The existing research has indicated that a high-altitude area is an important s...

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<h4>Background</h4>Musculoskeletal ultrasound is widely used in diagnosing gout, but its accuracy is debatable. We conducted a systematic review and meta-analysis to quantitatively evaluate the value of ultrasound in the diagnosis of gout.<h4>Methods</h4>We systematically sea...

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Low-cost MEMS sensors are widely utilized in UAV platforms to address attitude estimation problems due to their compact size, low power consumption, and cost-effectiveness. Diverse UAV payloads pose new challenges for attitude estimation, such as magnetic interference environments and high dynamic e...

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In this work, we propose a geolocation framework for distant ground targets integrating laser rangefinder sensors with multimodal visual servo control. By simulating binocular visual servo measurements through monocular visual servo tracking at fixed time intervals, our approach requires only single...

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在青少年時期維持學習投入對長期的學業成功相當重要。本研究探討中學生成長型思維與學習投入的關係，並檢驗後設認知與羞愧感的中介效果，以1,167位國、高中生為研究對象，完成「思維量表」、「後設認知量表」、「羞愧感量表」與「學習投入量表」等研究工具的填答，採結構方程模式（Structural Equation Modeling, SEM）進行分析。研究結果顯示，一、學生的成長型思維能正向預測後設認知、後設認知能直接正向預測學習投入、成長型思維會間接正向預測學生的學習投入；二、學生的成長型思維能直接負向預測羞愧感、羞愧感會直接負向預測學生的學習投入；三、學生的後設認知與羞愧感，在成長型思維與學習投入間...

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Extreme meteorological disaster effects on grain production is mainly determined by the interaction between danger degree of hazard-induced factors and vulnerability degree of hazard-affected bodies. This paper treats physical exposure, sensitivity of the response to the impact, and capabilities of...

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Studies have demonstrated that regulation of GDNF on male germline stem cells (mGSCs) mainly through Ras/Erk1/2, Src family kinase and PI3K/Akt signaling pathways, but the signaling pathways GDNF-mediated are different when the species and cell lines varied. Whether GDNF regulates self-renewal of mG...

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In the face of growing concerns over global climate change and carbon emissions, the study of marine carbon sinks has garnered significant attention. Shellfish aquaculture offers a promising pathway for carbon sequestration in marine ecosystems. Therefore, the determination of shell carbon content a...

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