Yuqing Zhao

Post-Rewetting Carbon Dynamics of a Temperate Peatland: Eddy Covariance–Based CO2 and CH4 Fluxes from Himmelmoor, Germany

Yuqing Zhao, David Holl, Lars Kutzbach

Peatland rewetting has been widely adopted in Germany as a climate-change mitigation strategy by reducing CO2 emissions from peat decomposition. However, rewetted peatlands may simultaneously act as sources of CH4 with varying strength. Quantifying their net greenhouse gas exchange remains challenging due …

de (code pays fourni par la source)

LMS-ADOM method for sinogram-domain ring artifacts correction in phase-contrast computed tomography

Li Ran, ZhenSen Li, Yimin Li, Yuqing Zhao et autres

Abstract In Phase-Contrast Computed Tomography (PCCT), ring artifacts caused by inhomogeneity in the detector response manifest as vertical stripes in the sinogram and are accompanied by additional noise, degrading image quality and affecting subsequent analysis. This study proposes a novel method combining …

cn, ru (code pays fourni par la source)

A Global Meta‐Analysis of Land Use Change on Soil Mineral‐Associated and Particulate Organic Carbon

Yuqing Zhao, Yulin Xu, Xinyu Cha, Peng Zhang et autres

Separating soil organic carbon (SOC) into mineral-associated organic carbon (MAOC) and particulate organic carbon (POC) enables accurate prediction of SOC vulnerability to land use change (LUC). Here, we synthesize the responses of soil MAOC and POC to LUC, including land restoration and …

cn (code pays fourni par la source)

Data-driven and model-guided iterative reconstruction framework for simultaneous sparse-view and ring artifact reduction in synchrotron X-ray microtomography

Fangzhi Li, Yimin Li, Ziyao Wang, Chenyang Ma et autres

Synchrotron X-ray microtomography (S-µCT) is a highly valuable technique for investigating organ function and pathologies. However, its application is often limited by high radiation doses and the occurrence of ring artifacts. While S-µCT utilizing sparse-view projections can effectively decrease radiation doses, the …

cn (code pays fourni par la source)

Multiscale X-ray phase-contrast CT uncovers adaptive changes and compensatory mechanisms of circulatory pathways during acute liver injury

Yuanyuan Zhao, Wenjuan Lv, Yi He, Beining Qi et autres

Intrahepatic circulation is essential for the repair of acute liver injury (ALI); however, very limited information is available concerning changes in the circulatory pathways during ALI. Therefore, multi-scale X-ray phase-contrast CT combined with three-dimensional (3D) visualization is used to quantitatively analyze the …

cn (code pays fourni par la source)

IDAD: An improved tensor train based distributed DDoS attack detection framework and its application in complex networks

Qiyuan Fan, Xue Li, Puming Wang, Xin Jin et autres

With the vigorous development of Internet technology, the scale of systems in the network has increased sharply, which provides a great opportunity for potential attacks, especially the Distributed Denial of Service (DDoS) attack. In this case, detecting DDoS attacks is critical to …

[Changes in Soil Organic Carbon Density and Its Response to Climate Change and Human Activities Before and After the Grain for Green Project on the Loess Plateau].

Yulin Xu, Yaping Zhao, Yuqing Zhao, Wanlin Yang et autres

t. ② In each bioclimatic subregion, the whole-region average SOCD of Ⅰ （Semi-Humid Forest Region）, Ⅱ （Semi-Humid Semi-Arid Forest and Grassland Region）, and Ⅲ （Semi-Arid Typical Grassland Region） showed a significant increasing trend, with a decreasing trend in Ⅳ （arid semi-arid desert …

np, cn (code pays fourni par la source)

Adaptive orthogonal directional total variation with kernel regression for CT image denoising

Xiying Xue, Dongjiang Ji, Chunyu Xu, Yuqing Zhao et autres

BACKGROUND: Low-dose computed tomography (CT) has been successful in reducing radiation exposure for patients. However, the use of reconstructions from sparse angle sampling in low-dose CT often leads to severe streak artifacts in the reconstructed images. OBJECTIVE: In order to address this …

cn (code pays fourni par la source)

Multiscale X-ray phase-contrast CT unveils the evolution of bile infarct in obstructive biliary disease

Xiaohong Xin, Jianbo Jian, Fan Xu, Beining Qi et autres

Bile infarct is a pivotal characteristic of obstructive biliary disease, but its evolution during the disease progression remains unclear. Our objective, therefore, is to explore morphological alterations of the bile infarct in the disease course by means of multiscale X-ray phase-contrast CT. …

cn (code pays fourni par la source)

Nitrogen addition-driven soil organic carbon stability depends on the fractions of particulate and mineral-associated organic carbon

Yulin Xu, Yuqing Zhao, Xinyu Cha, Wanlin Yang et autres

cn (code pays fourni par la source)

Nitrogen addition-driven soil carbon stability depends on the fractions of particulate and mineral-associated organic carbon

Yulin Xu, Yuqing Zhao, Xinyu Cha, Wanlin Yang et autres

Abstract Nitrogen (N) deposition greatly affects soil carbon (C) fractions, triggering changes in soil organic carbon (SOC) persistence and functionality. However, the responses of soil C fractions to N deposition remain unclear on a global scale. Here, we conducted a meta-analysis of …

cn (code pays fourni par la source)

Nitrogen Addition-Driven Soil Carbon Stability Depends on the Fractions of Particulate and Mineral-Associated Organic Carbon

Yulin Xu, Yuqing Zhao, Xinyu Cha, Wanlin Yang et autres

np, cn, us (code pays fourni par la source)