Yu Zhang

Effects of Biochar Addition and Nitrogen Deposition on Forest Soil CO2 Emissions and CH4 Uptake in a Temperate Mixed Conifer–Broadleaf Forest: An Incubation Study

Yu Zhang, Jiawei Du, Tong Yu, Xiafei Lin et autres

In this study, pristine biochar (BC1) and magnesium-modified biochar (BC2) were prepared from corn straw. Different nitrogen deposition intensities (0, 8, 30, and 50 kg N/(ha·yr)) were simulated by adding NH4NO3 solution. A laboratory incubation experiment was conducted to investigate the effects …

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High-precision scene-level metaverse virtual space construction and update technology integrating point cloud semantic information

Jiangdong Feng, Jiawei Zhou, Mengke Zhao, Xinyi Gong et autres

Aiming at the problems of low automation, insufficient modeling accuracy, and low scene update efficiency of traditional methods in current metaverse scene construction, this study proposes a high-precision scene-level metaverse virtual space construction and update technology that integrates point cloud semantic information. …

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Three-year nationwide survey of microbiology laboratory equipment conditions in China’s CDC: setting new benchmarks

Peihua Niu, Zhenlu Sun, Yu Zhang, Dapeng Zhang et autres

Background: This study evaluates the penetration and evolution of laboratory equipment in China's Centers for Disease Control and Prevention (CDCs) from 2021 to 2023, establishing benchmarks for optimal equipment configuration and operational capacity enhancement. Methods: Data were collected from CDCs at provincial, …

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Potential–controlled deposition of MgF2 film on AZ31 Mg alloy for enhanced corrosion resistance and biocompatibility

Yue Zhang, Yu Zhang, Yan-zhe Yang, Li-Ping Wu

A high–quality magnesium fluoride (MgF 2 ) film was fabricated on AZ31 magnesium alloy via a novel potentiostatic deposition technique in a mildly alkaline NH 4 F solution to enhance its corrosion resistance and biocompatibility. This study systematically established the applied potential …

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Microstructural evolution for enhanced high temperature fretting fatigue resistance in GH4169 via laser assisted ultrasonic surface rolling process

Hao Zhang, Daoxin Liu, Jing Yang, Mengyao Li et autres

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Environmental pyridinium disinfectants impair cortisol metabolism via 11β-hydroxysteroid dehydrogenase 2 inhibition: A cross-species risk evaluation

Chaochao Gong, Xiuzhi Zhang, Yu Zhang, Xishi Chen et autres

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CXCL7/CXCR2 in the paraventricular thalamus mediates obesity-related pain

Rui Hu, Qinglan Lu, Yiyan Liu, Yu Zhang et autres

High-fat diets represent a primary factor driving the global obesity epidemic, thereby constituting a substantial public health challenge. Previous research has demonstrated that obese individuals exhibiting a higher prevalence of pain-related disorders. However, the underlying neural mechanisms involved remain largely unknown. Here, …

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The influence of nucleation layer growth modulation on the RF loss of Si-based GaN epitaxial wafers

Yifan Li, Yachao Zhang, Sheng Wu, Shengrui Xu et autres

layer was formed, which effectively blocks the downward diffusion of Al atoms and suppresses the formation of a parasitic conductive channel, thereby leading to a significant reduction in RF loss. Four distinct pre-flow conditions were specifically designed to decouple and modulate the …

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4D Printing of polyoxometalate hydrogels from centrifuged inks for semi-solid lubricants

Bingxiu Xue, Yi Yang, Yujie Yang, Yujie Yang et autres

Polyoxometalate hydrogels, normally fabricated by linking polyanionic polyoxometalate particles with cationic ligands or multivalent ions, have found widespread potential applications in materials science and technology. Nevertheless, the binding with ligands/ions may adversely affect the intrinsic properties of polyoxometalates. And the prospects of …

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Lewis acid-catalyzed cascade via intercepted Meyer–Schuster O -allenylation and [3,3]-sigmatropic rearrangement: divergent synthesis of 2-alkenylanilines and indoles

Wen-Bin Xu, Li-Na Yang, Yangshuang Wang, Yu Zhang et autres

A Lewis acid-catalyzed cascade reaction of N -aryl hydroxylamines and propargylic alcohols efficiently synthesizes 2-alkenylanilines and polysubstituted indoles in one pot.

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Carbon-nitrogen synergy in the rhizosphere: Unlocking nature-based solutions for soil restoration

Ke Yang, Zhenfeng Zang, Shujuan Deng, Fuhao Tang et autres

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A051: Spatial Distribution Pattern and Influencing Factors of Ice and Snow Tourism Resources in Shandong Province

Yu Zhang, Xinlong Zhao, Yan Wang

At present, most studies focus on the three provinces in Northeast China, the Beijing-Tianjin-Hebei region, and Inner Mongolia, where the basic conditions of ice and snow tourism are relatively superior, while the spatial distribution characteristics of ice and snow tourism in Shandong …

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