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A Decoupling-Type Strategy for the Allen-Cahn Equation on Curved Surfaces

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Journal of Mathematical Research with Applications 2025年第1期 73-83页

作者： Xiaoman xie Qing PAN School of Computer and Communication Engineering Changsha University of Science & Technology

In this paper, we construct an efficient decoupling-type strategy for solving the Allen-Cahn equation on curved surfaces. It is based on an FEM-EIEQ(Finite Element Method and explicit-Invariant Energy Quadratization) fully discrete scheme with unconditional energy stability. Spatially the FEM is adopted, using a triangular mesh discretization strategy that can be adapted to complex regions. Temporally, the EIEQ approach is considered, which not only linearizes the nonlinear potential but also gives a new variable that we combine with the nonlocal splitting method to achieve the fully decoupled computation. The strategy can successfully transform the Allen-Cahn system into some completely independent algebraic equations and linear elliptic equations with constant coefficients, we only need to solve these simple equations at each time step. Moreover, we conducted some numerical experiments to demonstrate the effectiveness of the strategy.

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铼的中子辐射俘获反应截面测量

原子能科学技术 2024年第11期58卷 2262-2268页

作者：王晓宇贺国珠张奇玮罗淏天徐阔之李倩解立坤栾广源阮锡超邹翀陈玄博吴鸿毅樊瑞睿蒋伟曹平余滔中国原子能科学研究院核数据重点实验室北京102413 中国科学技术大学近代物理系核探测与核电子学国家重点实验室安徽合肥230026 中国船舶工业贸易有限公司北京100048 中国科学院高能物理研究所北京100049 散裂中子源科学中心广东东莞523803 中国科学技术大学核科学技术学院核探测与核电子学国家重点实验室安徽合肥230026

铼及铼钼合金是空间堆建造中的重要结构材料,其高精度的中子辐射俘获反应截面等数据在空间堆设计中具有重要意义。利用γ射线全吸收型BaF2探测装置(GTAF)和瞬发γ射线在线测量方法,在中国散裂中子源(CSNS)的反角白光中子束线(Back-n)上... 详细信息

铼及铼钼合金是空间堆建造中的重要结构材料,其高精度的中子辐射俘获反应截面等数据在空间堆设计中具有重要意义。利用γ射线全吸收型BaF2探测装置(GTAF)和瞬发γ射线在线测量方法,在中国散裂中子源(CSNS)的反角白光中子束线(Back-n)上,在线测量了铼的两个同位素样品^(185)Re和^(187)Re的中子辐射俘获反应截面。初步得到了^(185)Re和^(187)Re在0.5 eV~10 keV能区中子辐射俘获反应的激发函数,并将^(185)Re(n,γ)^(186)Re和^(187)Re(n,γ)188Re的激发函数实验数据与ENDF/B-Ⅷ.0数据库中的评价曲线进行比对分析,实验数据与评价曲线在可分辨共振峰处基本一致,进一步印证了评价曲线,也为在CSNS白光中子源开展更高精度的中子辐射俘获反应截面测量提供支持,为空间堆物理研究提供数据基础。

关键词：铼瞬发γ射线测量方法 (n,γ)反应

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Printing perovskite and graphene parallel structure-based optical-mechanical sensors for human-machine interaction

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Science China Technological Sciences 2025年

作者： Sisi CHEN Jiemin ZHANG Nan CHENG Wenbo LI Jing LIU Hongfei xie Jie ZHANG Yueying CHENG Xiaotong ZHAO Meng SU Yanlin SONG Key Laboratory of Green Printing CAS Research/Education Center for Excellence in Molecular Sciences Institute of ChemistryChinese Academy of Sciences (ICCAS) University of Chinese Academy of Sciences Weiyang College Tsinghua University Department of Cardiovascular Surgery First Medical Center PLA General Hospital AECC Beijing Institute of Aeronautical Materials Beijing Institute of Graphene Technology Beijing Engineering Research Centre of Graphene Application School of Integrated Circuit & Beijing National Research Center for Information Science and Technology (BNRist) Tsinghua University

Surgical robots are designed to provide enhanced precision and dexterity compared to manual surgical procedures,which mainly rely on multimodal sensing technologies for the surgeon to seamlessly operate the robotic arms and *** with single-mode sensors, optical and mechanical bi-modal sensors provide improved precision, enhanced safety,and robustness of human-machine interaction systems. Here, the template-guided and pneumatic printing technologies are combined to construct perovskite and graphene parallel structures with both optical and mechanical sensing capabilities. The printed uniformly crystallized perovskite microstructure exhibits fast and sensitive photoelectric response characteristics,enabling shadow recognition functionality. The combination of graphene and elastic rubber endows the great printability to prepare parallel structures near the perovskite arrays for force sensing capabilities. Thus, the printed perovskite and graphene structures possess non-contact optical sensing capabilities to detect hand position by recognizing shadows between the hand and the sensor, as well as contact mechanical sensing capabilities to detect touch force applied by the hand. It provides a synergistic platform for real-time and multidimensional feedback to improve human-machine interaction.

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新质生产力驱动下的箱包品牌及产品创新发展研究

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皮革科学与工程 2025年第1期35卷 114-119页

作者：王辉谢辉广州城市理工学院广东广州510800

在新质生产力的推动下,箱包行业的创新发展迎来了机遇。从新质生产力的定义与内涵出发,介绍了高效率、智能化、网络化以及可持续性等创新要素;从消费者需求变化、市场竞争态势和技术革新影响三个方面梳理了箱包品牌的市场现状;基于新质... 详细信息

在新质生产力的推动下,箱包行业的创新发展迎来了机遇。从新质生产力的定义与内涵出发,介绍了高效率、智能化、网络化以及可持续性等创新要素;从消费者需求变化、市场竞争态势和技术革新影响三个方面梳理了箱包品牌的市场现状;基于新质生产力的发展,提出了箱包品牌在材料、技术、用户体验和绿色可持续发展等关键领域的创新发展路径,为箱包行业未来的品牌创新发展提供了新的思路。

关键词：箱包新质生产力品牌产品市场可持续创新

[Construction of a 17 β-estradiol sensor based on a magnetic graphene oxide/aptamer separating material]

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Se pu = Chinese journal of chromatography 2025年第1期43卷 87-95页

作者： Xin-Yu Jin Le-Yuan Chen Ya-Nna Liu Wen-Jing xie Han-Yong Peng State Key Laboratory of Environmental Chemistry and Ecotoxicology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China. University of Chinese Academy of Sciences Beijing 100049 China. School of Environment Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China.

17-Estradiol (E2) is a natural steroidal estrogen essential for a variety of physiological functions in organisms. However, external E2, which is renowned for its potent biological effects, is also considered to be an endocrine-disrupting compound (EDC) capable of disturbing the normal operation of the endocrine system, even at nanogram-per-liter (ng/L) concentrations. Studies have revealed that medical and livestock wastewater can be contaminated with E2, which poses potential risks to human health. Currently, the primary method for detecting E2 relies on liquid chromatography-mass spectrometry, which is limited with regard to on-site or large-scale sample testing due to instrumental constraints. Herein, we developed a magnetic graphene oxide (MGO)/aptamer separating material. The MGO was synthesized by creating a water-in-oil microemulsion at 90 ℃, an agarose hydrogel to load the FeO nanoparticles, and layered graphene oxide (GO). In contrast to conventional methods, such as chemical co-precipitation and solvothermal approaches, this method is more time-efficient and does not require high temperature or pressure. Moreover, the use of a physical encapsulation technique for enwrapping the FeO nanoparticles and layered GO eliminates the need for chemical modification. This approach reduces the use of harmful chemicals, ensures complete loading, and results in highly efficient encapsulation. The MGO was characterized using Fourier-transform infrared (FT-IR) spectroscopy and transmission electron microscopy (TEM), as well as dynamic light scattering (DLS) and Zeta potential analyses, which revealed that the FeO nanoparticles had been successfully loaded onto the GO to produce MGO particles mainly around 5 μm in size. Additionally, this study demonstrated that the aqueous MGO dispersion is highly stable. This substance was used to develop a fluorescent biosensor that uses a "turn-on" mechanism to rapidly and highly sensitively detect E2. MGO is capable of adsorbing a fl

关键词： 17-estradiol (E2) fluorescence biosensor magnetic graphene oxide (MGO) magnetic solid phase separation

Integration of perioperative features and intragraft TCF7L2 expression to predict lipid metabolic disorder in liver transplant recipients

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Science China Life Sciences 2025年第1期 297-299页

作者： Junbin Zhou Rongli Wei Guanghan Fan Zhengxing Lian Xuanyu Zhang Linsong Tang Zhetuo Qi Haiyang xie Shusen Zheng Qiang Wei Xiao Xu Department of Hepatobiliary and Pancreatic Surgery People's Hospital of LishuiAffiliated Lishui Hospital of Wenzhou Medical UniversityThe First Affiliated Hospital of Lishui University NHFPC Key Laboratory of Combined Multi-Organ Transplantation Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province Department of Hepatobiliary and Pancreatic SurgeryHangzhou First People's Hospital Department of Hepatobiliary and Pancreatic Surgery The First Affiliated HospitalZhejiang University School of Medicine Department of Urology The Second Affiliated HospitalZhejiang University School of Medicine Department of Hepatobiliary and Pancreatic Surgery Department of Liver TransplantationShulan (Hangzhou) Hospital Hangzhou Medical College Zhejiang University School of Medicine

Dear Editor, Liver transplantation(LT) is the only curative therapy for patients with endstage liver disease(He et al., 2023; Ling et al., 2022). Post-transplant hypertriglyceridemia(PTHT), which has an incidence of up to 32.8% in 6 months after LT, is one of the major post-transplant complications(Toshima et al., 2020).

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新质生产力的概念深诠与机理再探——兼论其在农业农村领域的实践

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河北学刊 2025年第1期45卷 20-29页

作者：解安邵景润清华大学马克思主义学院清华大学城镇化与城乡统筹研究中心

发展新质生产力是中共二十届三中全会的重要议题之一,是推动经济高质量发展的关键。新质生产力的本源概念产生于社会转型时期现实问题的需要,经过“酝酿、出场、应用”三个阶段的动态演进,展现出强烈的实践性和时代性。培育新质生产力... 详细信息

发展新质生产力是中共二十届三中全会的重要议题之一,是推动经济高质量发展的关键。新质生产力的本源概念产生于社会转型时期现实问题的需要,经过“酝酿、出场、应用”三个阶段的动态演进,展现出强烈的实践性和时代性。培育新质生产力的关键机理在于以科技创新引领产业创新、以技术创新推动技术应用,构成“劳动者+基础创新+应用创新”的三维实践理路。广阔的国土空间决定了发展新质生产力具体路径的多元性,有必要从抽象走向具体,考察相对微观层面的经验做法。基于新疆尉犁的案例分析表明,推动农业农村领域的新质生产力发展,可以通过数智技术、生物技术来革新农业劳动资料,通过激活乡村土地资源、文化资源、数据资源和生态资源来拓展劳动对象,积极培育和引进优质个体劳动者与协作劳动组织,充分发挥区域资源禀赋。

关键词：新质生产力概念新质生产力机理农业农村领域案例分析

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Understanding the improved performance of sulfur-doped interconnected carbon microspheres for Na-ion storage

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Carbon Energy 2021年第4期3卷 615-626页

作者： Xinran Yuan Siming Chen Jinliang Li Junpeng xie Genghua Yan Botian Liu Xibo Li Rui Li likun Pan Wenjie Mai Department of Physics Siyuan LaboratoryGuangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy MaterialsJinan UniversityGuangzhouGuangdongChina School of Advanced Materials Shenzhen Graduate SchoolPeking UniversityShenzhenGuangdongChina Department of Chemistry and Biological Engineering Guilin University of TechnologyGuilinChina Shanghai Key Laboratory of Magnetic Resonance School of Physics and Electronic ScienceEast China Normal UniversityShanghaiChina

As one of the low-cost energy storage systems,Na-ion batteries(NIBs)have received tremendous ***,the performance of current anode materials still cannot meet the requirements of *** our work,we obtain sulfur-doped interconnected carbon microspheres(S-CSs)via a simple hydrothermal method and subsequent sulfurizing *** S-CSs exhibit an ultrahigh reversible capacity of 520 mAh g^(-1) at 100 mA g^(-1) after 50 cycles and an excellent rate capability of 257 mAh g^(-1),even at a high current density of 2 A g^(-1).The density functional theory calculations demonstrate that sulfur doping in carbon favors the adsorption of Na atom during the sodiation process,which is accountable for the performance ***,we also utilize operando Raman spectroscopy to analyze the electrochemical reaction of our S-CSs,which further highlights the sulfur doping in improving Na-ion storage performance.

关键词： electrochemical enhancement mechanism electrochemical reaction Na-ion batteries sulfur-doped interconnected carbon microspheres

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论产品责任中的产品自损

北京理工大学学报(社会科学版) 2025年第1期27卷 66-74页

作者：谢远扬刘岩中国政法大学　民商经济法学院北京100088 北京市朝阳区人民法院北京100016

产品自损是否属于产品责任的赔偿范围，立法、司法和理论界各有不同的看法。基于产品瑕疵的产品自损和基于产品缺陷造成他人损害的损害赔偿责任，在责任性质、构成要件、责任形态等方面各有不同。在传统民法体系中，前者属于合同法中的... 详细信息

产品自损是否属于产品责任的赔偿范围，立法、司法和理论界各有不同的看法。基于产品瑕疵的产品自损和基于产品缺陷造成他人损害的损害赔偿责任，在责任性质、构成要件、责任形态等方面各有不同。在传统民法体系中，前者属于合同法中的瑕疵担保责任，后者属于侵权法中的无过错产品责任，具有明确的区分。《侵权编解释》第19条特别规定将产品自损纳入产品责任的赔偿范围，突破了传统民法理论中合同责任和侵权责任的界分。为了避免体系内部的规范冲突，在实践中需要特别注意，在适用范围上，明确只有缺陷导致的产品自损才能通过侵权责任救济。在赔偿范围上，部分的履行利益能够纳入侵权责任的保护范围。在免责事由上，瑕疵检验期间并不能成为不承担侵权责任的理由。

关键词：产品自损产品责任瑕疵缺陷责任范围