He Cheng

Neutron Total Scattering Investigation of the Dissolution Mechanism of Chitotriose in Alkali/Urea Aqueous Solutions

Haotian Cheng, Changli Ma, Hong Zhu, Shaoyu Lin et autres

Abstract Despite the promise of alkali/urea aqueous solutions as green solvents, the atomistic-scale mechanism of chitin dissolution remains elusive. In contrast to the ability to dissolve cellulose, the order of alkali effectiveness for dissolving chitin is potassium hydroxide (KOH) as the best …

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Scale-resolved water and hydrocarbon accessibility in lacustrine shales revealed using contrast-matched small-angle neutron scattering

Zhouhua Wang, Xintong Zhang, Yun Li, He Cheng et autres

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AI-4-SPS: An Artificial Intelligence-Driven Semantic Database for Shale Pore Structure Characterization

Chen Zhao, Peng Hu, Yi Yang, He Cheng et autres

Understanding shale pore structure across nano- to mesoscales is essential for reservoir evaluation, which supports effective geological exploration and development. However, this understanding remains constrained by data fragmentation across different methods and by the limited integration of small-angle neutron scattering (SANS), which …

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Enhanced physical-layer security in WDM optical communications based on chaotic optical encryption with frequency-hopping filtered feedback

Chenpeng Xue, Shuo Diao, He Cheng, Wei Jin et autres

We propose and numerically demonstrate a physical-layer-security-enhanced 4 × 50 Gb/s 16 QAM WDM optical communication system using optical phase encryption with frequency-hopping filtered feedback. A broadband chaotic signal generated by a filtered opto-electronic feedback loop is employed as the phase key. …

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Sequential Solvent Extraction Reveals Lithofacies-Dependent Pore Accessibility, Wettability, and Hydrocarbon Partitioning in Organic-Rich Lacustrine Shales

Qiming Wang, Weixing Yan, Qinhong Hu, Pengfei Jiao et autres

Understanding the reservoir characteristics of shale oil formations is an essential workflow in petroleum exploration and development because it supports petroleum-reserve evaluation and guides production activities. Few studies have examined the coupled effects of pore structure and oil composition on reservoir characterization, …

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Nanoconfinement and wettability alteration govern crude-oil persistence in high-porosity mudstone with nm-sized pores

Qiming Wang, Qinhong Hu, C Y Zhao, Zihang Luo et autres

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The interaction between dislocations and TiC precipitates during creep of 15-15Ti austenitic stainless steel by Small-Angle Neutron Scattering

Jie Teng, Yuhao Wang, Tianfu Li, Y Kim Chang et autres

15-15Ti austenitic stainless steel has high-temperature creep resistance and irradiation stability due to dispersed TiC nanoprecipitates in the material. In this study, we employ Small-Angle Neutron Scattering (SANS), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Electron Backscatter Diffraction (EBSD), and Neutron Diffraction …

Observation of fluctuation driven topological Hall effect in the chiral magnet Mn 1 / 3 Nb S 2 with weak Dzyaloshinskii–Moriya interactions

Haocheng Liao, Wenhao Li, Ziyi Zhou, Qisheng Jiang et autres

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Structural optimization of AlN thin films transducer for high-temperature ultrasonic sensing with high entropy oxide protection

Yue Jiang, Jie Liu, He Cheng, Jiuzhang Li et autres

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Precipitate size and morphology govern the strength–ductility trade-off in an additively manufactured medium-entropy alloy

Jinqiang Shi, Yuyang Qian, Yuefei Jia, Zhibin Wu et autres

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Self-Assembling Borneol-Derived Antimicrobial Polymers for Eradicating Mature Biofilms and Treating Fungal Wound and Keratitis Infections

Chuming Pang, Yimin Wang, X Y Zhou, He Cheng et autres

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Climate change, environmental extremes, and human health

Pei Yu, Yanming Liu, Yunfei Xing, He Cheng et autres

In the context of climate change, extreme environmental events are becoming increasingly frequent and severe, profoundly affecting human health and creating a vicious cycle of mutual reinforcement. This review examines evolving trends in climate change–related extreme events and compound exposures, such as …

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