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Immune regulation of the gut-brain axis and lung-brain axis involved in ischemic stroke

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Neural Regeneration Research 2024年第3期19卷 519-528页

作者： Xiaodi xie Lei Wang Shanshan Dong ShanChun Ge Ting Zhu Institute of Neuroregeneration&Neurorehabilitation Department of PathophysiologySchool of Basic MedicineQingdao UniversityQingdaoShandong ProvinceChina school of Traditional Chinese Pharmacy China Pharmaceutical UniversityNanjingJiangsu ProvinceChina Department of Rehabilitation Medicine The Affiliated Hospital of Qingdao UniversityQingdaoShandong ProvinceChina

Local ischemia often causes a series of inflammatory reactions when both brain immune cells and the peripheral immune response are *** the human body,the gut and lung are regarded as the key reactional targets that are initiated by brain ischemic *** microorganisms play an important role in immune regulation and metabolism and affect blood-brain barrier *** addition to the relationship between peripheral organs and central areas and the intestine and lung also interact among each ***,we review the molecular and cellular immune mechanisms involved in the pathways of inflammation across the gut-brain axis and lung-brain *** found that abnormal intestinal flora,the intestinal microenvironment,lung infection,chronic diseases,and mechanical ventilation can worsen the outcome of ischemic *** review also introduces the influence of the brain on the gut and lungs after stroke,highlighting the bidirectional feedback effect among the gut,lungs,and brain.

关键词： enteric glia cells gut microbiota gut-brain axis immune response inflammation ischemic stroke lung-brain axis microglia

Sustainable mining in the Era of Artificial Intelligence

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 1-4页

作者： Long Chen Yuting xie Yutong Wang Shirong Ge Fei-Yue Wang IEEE the State Key Laboratory for Management and Control of Complex Systems at the Institute of Automation Chinese Academy of SciencesBeijing 100190China the National Laboratory of Pattern Recognition at the Institute of Automation and Waytous Ltd.China the school of Computer Science and engineering Sun Yat-Sen UniversityGuangzhou 510275GuangdongChina the school of mechanical Electronic and Information engineering China University of Mining and Technology BeijingBejing 100083China the school of Artificial Intelligence University of Chinese Academy of SciencesBeijing 100190China

The mining sector historically drove the global economy but at the expense of severe environmental and health repercussions,posing sustainability challenges[1]-[3].Recent advancements on artificial intelligence(AI)are revolutionizing mining through robotic and data-driven innovations[4]-[7].While AI offers mining industry advantages,it is crucial to acknowledge the potential risks associated with its widespread ***-reliance on AI may lead to a loss of human control over mining operations in the future,resulting in unpredictable consequences.

关键词： Sustainable mining consequences

Molecular dynamics study of water molecules nucleation for fine particle removal:Effects of wettability and aggregation modes and comparison with experiment Author links open overlay panel

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Particuology 2024年第8期91卷 106-117页

作者： Junchao Xu Zhipeng Zhang Li Lv Yunfei Zhang Yiming xie Huaqiang Chu school of Energy and Environment Anhui University of TechnologyMaanshan243002China College of mechanical and electrical engineering China Jiliang UniversityHangzhou310018China

Water vapor nucleation on particle's surface plays an important role in dust removal,cloud formation,and particle ***,the selectivity of nucleation sites and the nucleation characteristic of water molecule on the particle's surface are still unclear,especially for the aggregated *** this paper,the effects of particle wettability and aggregation modes on the selectivity of nucleation sites and the nucleation characteristics were investigated using molecular dynamics *** results were compared with our earlier experimental *** illustrates how the contact angle of clusters,the growth velocity,and the growth duration are all influenced by the interaction coefficient between water and ***,the nucleation sites of water molecules on the particle aggregation surface exhibit a definite *** primary indicator of this selectivity is the preferential nucleation of water molecules at the interfaces of linear chain aggregation particles,at the inner side of non-linear chain aggregation particles,and at the centers of ring *** results are in good agreement with our previous experimental *** significantly,additional research has revealed that subcritical-size clusters typically aggregate on two-particle surfaces spacing when the spacing smaller than the critical cluster size.

关键词： Heterogeneous nucleation Water molecule Wettability Aggregation modes Molecule dynamics

ANALYSIS OF THE MODES OF COLLABORATIVE DESIGN AND SYSTEM IMPLEMENTATION

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ANALYSIS OF THE MODES OF COLLABORATIVE DESIGN AND SYSTEM IMP...

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： GAO Qi*, DU Zongzhan *school of mechanical engineering, Shandong university, Jinan 250061, china school of electrical engineering, Shandong university, Jinan 250061, china

As the complexity and variety of products increase to satisfy increasingly sophisticated customers, modern product development is performed by cross-functional teams distributed geographically and tem

关键词： Collaborative design collaboration model project management workflow management.

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高速开关阀阀芯频响及流量输出特性研究

机床与液压 2024年第19期52卷 159-164页

作者：陈楠魏汝路谢方伟南京业恒达智能系统有限公司江苏南京210000 中国矿业大学机电工程学院江苏徐州221116

针对数字液压领域中高速开关阀阀芯的频响规律以及流量输出难以精确评估的问题,提出一种基于负载力函数的高速开关阀动态性能分析方法。通过推导阀芯动力学模型,建立电磁铁、流场仿真模型,研究电磁铁的空载动态特性。通过添加负载力函数... 详细信息

针对数字液压领域中高速开关阀阀芯的频响规律以及流量输出难以精确评估的问题,提出一种基于负载力函数的高速开关阀动态性能分析方法。通过推导阀芯动力学模型,建立电磁铁、流场仿真模型,研究电磁铁的空载动态特性。通过添加负载力函数,采用机-电-液联合仿真方法,最终得到阀芯频响和流量输出特性。仿真结果表明:模型能较好地反映阀芯频响和流量输出规律;高速开关阀开启时间为13.9 ms,关闭时间为14.3 ms;当控制频率为20 Hz、占空比为30%~70%时,流量调制线性区为1~1.9 L/min,随着控制频率增加,高速开关阀的流量可调区间减少,当控制频率达到40 Hz时,高速开关阀的流量几乎不可调制。

关键词：高速开关阀阀芯频响流量输出

Pore-pressure and stress-coupled creep behavior in deep coal:Insights from real-time NMR analysis

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International Journal of mining Science and technology 2024年第1期34卷 77-90页

作者： Wenhao Jia Hongwei Zhou Senlin xie Yimeng Wang Xinfeng Hu Lei Zhang school of Mechanics and Civil engineering China University of Mining and Technology-BeijingBeijing 100083China school of Energy and mining engineering China University of Mining and Technology-BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe mining China University of Mining and Technology-BeijingBeijing 100083China College of Safety and Emergency Management engineering Taiyuan University of TechnologyTaiyuan 030024China

Understanding the variations in microscopic pore-fracture structures(MPFS) during coal creep under pore pressure and stress coupling is crucial for coal mining and effective gas treatment. In this manuscript, a triaxial creep test on deep coal at various pore pressures using a test system that combines in-situ mechanical loading with real-time nuclear magnetic resonance(NMR) detection was ***-scale quantitative characterization, online real-time detection, and visualization of MPFS during coal creep influenced by pore pressure and stress coupling were performed using NMR and NMR imaging(NMRI) techniques. The results revealed that seepage pores and microfractures(SPM) undergo the most significant changes during coal creep, with creep failure gradually expanding from dense primary pore fractures. Pore pressure presence promotes MPFS development primarily by inhibiting SPM compression and encouraging adsorption pores(AP) to evolve into SPM. Coal enters the accelerated creep stage earlier at lower stress levels, resulting in more pronounced creep deformation. The connection between the micro and macro values was established, demonstrating that increased porosity at different pore pressures leads to a negative exponential decay of the viscosity coefficient. The Newton dashpot in the ideal viscoplastic body and the Burgers model was improved using NMR experimental results, and a creep model that considers pore pressure and stress coupling using variable-order fractional operators was developed. The model’s reasonableness was confirmed using creep experimental data. The damagestate adjustment factors ω and β were identified through a parameter sensitivity analysis to characterize the effect of pore pressure and stress coupling on the creep damage characteristics(size and degree of difficulty) of coal.

关键词： Real-time monitoring Pore pressure-stress coupling Microscopic pore-fracture structure Variable-order fractional creep model Deep coal

Adaptive Trajectory Tracking Control for Nonholonomic Wheeled Mobile Robots:A Barrier Function Sliding Mode Approach

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IEEE/CAA Journal of Automatica Sinica 2024年第4期11卷 1007-1021页

作者： Yunjun Zheng Jinchuan Zheng Ke Shao Han Zhao Hao xie Hai Wang the school of mechanical engineering Hefei University of TechnologyHefei 230009China the school of Science Computing and Engineering TechnologiesSwinburne University of TechnologyHawthorn VIC 3122Australia the school of Civil Aviation Northwestern Polytechnical UniversityXi’an 710072China the Shanghai Aerospace Control technology Institute Shanghai 201109 the school of Automation Science and electrical engineering Beihang UniversityBeijing 100191China the College of Science HealthEngineering and EducationMurdoch UniversityPerth WA6150Australia

The trajectory tracking control performance of nonholonomic wheeled mobile robots(NWMRs)is subject to nonholonomic constraints,system uncertainties,and external *** paper proposes a barrier function-based adaptive sliding mode control(BFASMC)method to provide high-precision,fast-response performance and robustness for *** with the conventional adaptive sliding mode control,the proposed control strategy can guarantee that the sliding mode variables converge to a predefined neighborhood of origin with a predefined reaching time independent of the prior knowledge of the uncertainties and disturbances *** advantage of the proposed algorithm is that the control gains can be adaptively adjusted to follow the disturbances amplitudes thanks to the barrier *** benefit is that the overestimation of control gain can be eliminated,resulting in chattering ***,a modified barrier function-like control gain is employed to prevent the input saturation problem due to the physical limit of the *** stability analysis and comparative experiments demonstrate that the proposed BFASMC can ensure the prespecified convergence performance of the NWMR system output variables and strong robustness against uncertainties/disturbances.

关键词： Adaptive sliding mode barrier function nonholonomic wheeled mobile robot(NWMR) trajectory tracking control

Weft Tension Test System of Rapier Loom Based on MC68332

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Weft Tension Test System of Rapier Loom Based on MC68332

Recent advances on monolithic perovskite-organic tandem solar cells

2010 The 2nd International Conference on Industrial Mechatronics and Automation (ICIMA 2010)

作者： Weibing Xiao school of electrical and mechanical engineering Wuhan university of Science and engineering Wuhan Hubei china

To measure weft tension of a rapier loom exactly during weft insertion,this paper reasonably configures technological parameters for the rapier loom,adopts a weft tension test system composed of MC68332,main shaft rotation angle sensor,tension sensor,data acquisition chip and display to achieve real-time measurement of dynamic weft tension,elaborates the principle and design method of this tension test system and applies this system to test and analyze tension of different wefts of TT96 rapier loom.

关键词： rapier loom MC68332 single-chip microcomputer weft insertion weft tension test

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Interdisciplinary Materials 2024年第1期3卷 113-132页

作者： Guanshui xie Huan Li Longbin Qiu Shenzhen Key Laboratory of Intelligent Robotics and Flexible Manufacturing Systems Department of Mechanical and Energy EngineeringSUSTech Energy Institute for Carbon NeutralitySouthern University of Science and TechnologyShenzhenChina

Perovskite-organic tandem solar cells(TSCs)have emerged as a groundbreaking technology in the realm of photovoltaics,showcasing remarkable enhancements in efficiency and significant potential for practical ***-organic TSCs also exhibit facile fabrication surpassing that of all-perovskite or all-organic TSCs,attributing to the advantageous utilization of orthogonal solvents enabling sequential solution process for each *** perovskite-organic TSCs capitalize on the complementary light absorption characteristics of perovskite and organic *** is a promising prospect of achieving further enhanced power conversion efficiencies by covering a broad range of the solar spectrum with optimized perovskite absorber,organic semiconductors as well as the interconnecting layer's optical and electrical *** review comprehensively analyzes the recent advancements in perovskite-organic TSCs,highlighting the synergistic effects of combining perovskite with a low open-circuit voltage deficit,organic materials with broader light absorption,and interconnecting layers with reduced optical and electrical ***,the underlying device architecture design,regulation strategies,and key challenges facing the high performance of the perovskite-organic TSCs are also discussed.

关键词： interconnecting layer narrow‐bandgap organic solar cells recombination layer tandem solar cells wide‐bandgap perovskite solar cells