Zoekresultaten - Wen Wang

To accurately evaluate the carbon sequestration potential and better elucidate the relationship between the carbon cycle and regional climate change, using eddy covariance system, we conducted a long-term measurement of CO2 fluxes in the rain-fed winter wheat field of the Chinese Loess Plateau. The...

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Background: As a global expansion of Francisella tularensis subsp. holarctica in the northern hemisphere, its origin has been of great interest. Based on the phylogenetic analysis of the whole genome sequences (WGS) available in public databases, estimating temporal signal in accordance with random...

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This study examines pantograph aerodynamic lift at 400 km/h, and uncovers the dynamic behaviors and mechanisms that influence pantograph–catenary performance. Using computational fluid dynamics (CFD) with a compressible fluid model and an SST k-ω turbulence model, aerodynamic characteristics were an...

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Abstract Bacterial extracellular vesicles (BEVs) are nanoscale vesicles secreted by bacteria. They possess lipid bilayer membranes and contain multiple periplasmic and cytoplasmic components, facilitating their intercellular communications through transferring of various bioactive molecules. Conside...

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Seismic-physical-model imaging (SPM), a successful strategy for the research in seismic wave propagation and wave theoretical predictions, effectively bridges the computation modeling and the field exploration and leads to a nearly ideal setting without a rock matrix. However, the current strategy f...

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Programmed death-1 (PD-1) and its ligand PD-L1 inhibitors have become pivotal agents in cancer immunotherapy, demonstrating significant efficacy across multiple malignancies. However, beyond regulating T cell activation, the PD-1/PD-L1 axis also exerts complex and critical effects on bone metabolism...

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Background: Coronavirus disease 2019 (COVID-19) is frequently complicated by cardiovascular involvement. Soluble growth stimulation-expressed gene 2 (sST2) is a promising cardiovascular biomarker, but its prognostic value in COVID-19 remains unclear. Methods: This retrospective cohort study included...

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Dental caries can cause premature loss of deciduous teeth, affecting children’s growth and development. Endodontic treatment using polymer posts is an effective solution. This study explores biodegradable root canal posts made from Polylactic Acid (PLA), Polycaprolactone (PCL), and amorphous calcium...

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Malignant melanoma brain metastases (MBM) represent one of the deadliest complications of melanoma, with an incidence rate of 7.3%. Among patients with acral and mucosal melanoma, the cumulative 5-year incidence can reach 19.5%, accompanied by poor prognosis. The blood-brain barrier (BBB), an immuno...

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Electronic speckle pattern interferometry (ESPI) is a non-contact, full field, real-time measurement technology, which judges the position and size of the internal defects of the object through the external deformation caused by the internal defects under certain loading conditions. We present the e...

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<h4>Purpose</h4>To compare the efficacy and safety of current treatments in diabetic macular edema (DME).<h4>Methods</h4>PubMed, Embase and CENTRAL were systematically reviewed for randomized controlled trials of current treatments in DME through August 2015. Data on the mean...

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Increasing attentions have been paid to mineral concentration decrease in milled rice grains caused by CO2 enrichment, but the mechanisms still remain unclear. Therefore, mineral (Ca, Mg, Fe, Zn and Mn) translocation in plant-soil system with a FACE (Free-air CO2 enrichment) experiment were investig...

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Traditional physical simulation method of hydraulic fracturing has certain limitations in quantitatively studying fracture morphology and dynamically monitoring fracture propagation paths. It is challenging to quantitatively evaluate the dynamic processes of fracture initiation and propagation. Ther...

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The advancement of intelligent mining continues unabated, with three-dimensional laser scanning technology laying the foundation for the perception of mines. A robust two-stage denoising method for complex underground tunnel scenes in three-dimensional point cloud data has been proposed to acquire h...

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Background: Hypersaline wastewater poses significant environmental challenges, necessitating efficient bioremediation strategies. This study investigates the hypersaline tolerance mechanisms of Pseudomonas stutzeri YXH-102, a heterotrophic nitrifying/aerobic denitrifying bacterium isolated from Yunc...

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Objective To explore the methods of continuing education for advanced endoscope operations by digestive specialists through the establishment and teaching effect evaluation of the ERCP (endoscope retrograde cholangiopancreatography) introductory training mode. Methods A total of 26 trainees from 3 s...

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Surface acoustic wave (SAW) gas-based sensors have attracted significant attention as an emerging sensing technology due to their unique micro/nano-scale acoustic sensing structures and multi-physical field coupling mechanisms, which feature high sensitivity, rapid response, wide detection range, an...

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An intelligent liquid classification system based on 77 ​GHz ​millimeter wave radar and convolution neural network are proposed in this paper. The data are collected by the AWR1843 radar platform and processed by the neural network on the host PC in real-time. The doppler heatmap generated by radar...

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