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“新师范”建设:打造校地协同伙伴关系——以华南师范大学创建国家教师教育创新实验区为例

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清华大学教育研究 2024年第2期45卷 116-125页

作者：王红夏瑞阳华南师范大学教师教育学部广东广州510631 华南师范大学政治与公共管理学院广东广州510006

“新师范”建设是广东省教师教育创新发展的重要行动,其中,构建有效的校地协同伙伴关系是其主要内容之一。文章以华南师范大学在该行动中创建国家教师教育创新实验区的实践探索为案例,从嵌入性理论视角出发,提出“五维嵌入”的构建机理... 详细信息

“新师范”建设是广东省教师教育创新发展的重要行动,其中,构建有效的校地协同伙伴关系是其主要内容之一。文章以华南师范大学在该行动中创建国家教师教育创新实验区的实践探索为案例,从嵌入性理论视角出发,提出“五维嵌入”的构建机理。“新师范”建设高校要打造校地协同伙伴关系,应在结构嵌入上形成发展共同体,组织与推动人员互聘以链接信息、资源和利益相关者;在政治嵌入上通过签订具有契约性质的合作协议筑牢校地政治关系;在文化嵌入上融独创理念于培训和打造品牌文化论坛以实现先进文化传播和分享;在业务嵌入上以具有标识性的独特模式创新整合校地资源和优势进入各方主导的教育业务供应链;在技术嵌入上通过传递与应用人工智能为代表的新信息技术以满足地方教师教育智能化需要并为校地教育合作过程赋能。

关键词： “新师范”建设校地协同教师教育嵌入

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采用PSO-LSTM联合算法的MEMS陀螺仪温度误差补偿方法

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制造业自动化 2024年第5期46卷 95-102页

作者：夏瑞阳肖承翔潘康华中国机械科学研究总院集团有限公司北京100044 中机生产力促进中心有限公司北京100044

MEMS陀螺仪是一种用来测量角速度的惯性器件。是一种具有成本低、体积小、性能好、可靠性好等优点的微机械陀螺仪,可广泛应用于微惯性导航系统、军事、汽车、消费电子等领域。然而,由于MEMS陀螺仪的材质特性,其输出数据受温度影响较大,... 详细信息

MEMS陀螺仪是一种用来测量角速度的惯性器件。是一种具有成本低、体积小、性能好、可靠性好等优点的微机械陀螺仪,可广泛应用于微惯性导航系统、军事、汽车、消费电子等领域。然而,由于MEMS陀螺仪的材质特性,其输出数据受温度影响较大,这一问题限制了其在工业生产领域的进一步应用。通过对MEMS陀螺仪温度误差补偿模型中所用算法的对比分析,结合用于优化人工神经网络的PSO粒子群优化算法提出了一种采用PSO-LSTM联合人工神经网络算法的MEMS陀螺仪温度误差补偿方法,并通过多种数据检测函数进行了仿真对比实验,基于RMSE和MAE两项参数验证了优化后算法的有效性,以期为MEMS陀螺仪工作过程中的温度误差补偿模块设计提供新思路。

关键词： MEMS陀螺仪粒子群(PSO)算法 PSO-LSTM联合人工神经网络算法

Vertically aligned W(Mo)S_(2)/N-W(Mo)C-based light-assisted electrocatalysis for hydrogen evolution in acidic solutions

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Rare Metals 2023年第5期42卷 1535-1544页

作者： Lan-Fang Wang rui-xia yang Jin-Zhi Fu Yue-Yue Cao rui-Fang Ding xiao-Hong Xu Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education&School of Chemistry and Materials Science of Shanxi Normal University Taiyuan030032China Kunshan Superior Silk Screen Printing Material Co. Ltd.Suzhou215300China

The development of non-noble-metal hydrogen evolution electrocatalysts holds great promises for a sustainable energy ***,a hybrid W(Mo)S_(2)/NW(Mo)C nanosheet with array structures was reported for an efficient light-as sis ted hydrogen evolution electrocatalysts in acidic *** resulting vertically aligned W(Mo)S_(2)/N-W(Mo)C was supported on a conductive carbon fiber paper,which can be produced through annealing W(Mo)S_(2)nanosheets by simultaneous carbonization and N-doping in Ar/H_(2)*** optimized WS_(2)/NWC and MoS_(2)/N-MoC electrode exhibits remarkable lightassisted electrocatalysis activity with overpotentials of0.120 and 0.122 V at 10 mA·cm^(-1)in acidic solutions,*** high hydrogen evolution activities should be attributed to the electrocatalytic synergistic effects of the abundant active sites existing in different phase boundaries and the absorption for ultraviolet-visible *** study shows that synthesis of low-cost and highly active W(Mo)S_(2)-based hydrogen evolution electrocatalyst opens up a route toward the development of scalable production of hydrogen fuels.

关键词： W(Mo)S_(2)/N-W(Mo)C heterostructures Vertically aligned nanosheets Hydrogen evolution Lightassisted electrocatalysis

Evolution of mechanical parameters of Shuangjiangkou granite under different loading cycles and stress paths

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第4期16卷 1113-1126页

作者： Liangjie Gu xia-Ting Feng rui Kong Chengxiang yang Yuelin xia Key Laboratory of Ministry of Education on Safe Mining of Deep Metal Mines Northeastern UniversityShenyang110819China State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China

Surrounding rocks at different locations are generally subjected to different stress paths during the process of deep hard rock *** this study,to reveal the mechanical parameters of deep surrounding rock under different stress paths,a new cyclic loading and unloading test method for controlled true triaxial loading and unloading and principal stress direction interchange was proposed,and the evolution of mechanical parameters of Shuangjiangkou granite under different stress paths was studied,including the deformation modulus,elastic deformation increment ratios,fracture degree,cohesion and internal friction ***,stress path coefficient was defined to characterize different stress paths,and the functional relationships among the stress path coefficient,rock fracture degree difference coefficient,cohesion and internal friction angle were *** results show that during the true triaxial cyclic loading and unloading process,the deformation modulus and cohesion gradually decrease,while the internal friction angle gradually increases with increasing equivalent crack *** stress path coefficient is exponentially related to the rock fracture degree difference *** the stress path coefficient increases,the degrees of cohesion weakening and internal friction angle strengthening decrease *** cyclic loading and unloading under true triaxial principal stress direction interchange,the direction of crack development changes,and the deformation modulus increases,while the cohesion and internal friction angle decrease slightly,indicating that the principal stress direction interchange has a strengthening effect on the surrounding ***,the influences of the principal stress interchange direction on the stabilities of deep engineering excavation projects are discussed.

关键词： Triaxial cyclic loading and unloading test Stress path Deformation modulus and elastic deformation increment ratios Fracture degree Cohesion and internal friction angle

Prediction of Lubricant Physicochemical Properties Based on Gaussian Copula Data Expansion

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China Petroleum Processing & Petrochemical Technology 2024年第1期26卷 161-174页

作者： Feng Xin yang rui Xie Peiyuan xia Yanqiu School of Energy Power and Mechanical Engineering North China Electric Power UniversityBeijing 102206China

The composition of base oils affects the performance of lubricants made from *** paper proposes a hybrid model based on gradient-boosted decision tree(GBDT)to analyze the effect of different ratios of KN4010,PAO40,and PriEco3000 component in a composite base oil system on the performance of *** study was conducted under small laboratory sample conditions,and a data expansion method using the Gaussian Copula function was proposed to improve the prediction ability of the hybrid *** study also compared four optimization algorithms,sticky mushroom algorithm(SMA),genetic algorithm(GA),whale optimization algorithm(WOA),and seagull optimization algorithm(SOA),to predict the kinematic viscosity at 40℃,kinematic viscosity at 100℃,viscosity index,and oxidation induction time performance of the *** results showed that the Gaussian Copula function data expansion method improved the prediction ability of the hybrid model in the case of small *** SOA-GBDT hybrid model had the fastest convergence speed for the samples and the best prediction effect,with determination coefficients(R^(2))for the four indicators of lubricants reaching 0.98,0.99,0.96 and 0.96,***,this model can significantly reduce the model’s prediction error and has good prediction ability.

关键词： base oil data augmentation machine learning performance prediction seagull algorithm

Construction of multifunctional lanthanum manganese mixed nanoparticles mediated by ionic liquids for selective aerobic oxidation of cyclohexane

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Rare Metals 2024年第5期43卷 2205-2221页

作者： Hao Li rui-rui Zhang Ke-Xin Li Shuang Wei Yu-Mei Liu rui-xia Liu Beijing Key Laboratory of Ionic Liquids Clean Process CAS Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Selective oxidation of alkanes to produce highvalue chemicals is an essential strategy and means to realize efficient utilization of *** this work,a strategy of lanthanum manganese mixed metal oxides(LMMO)regulated via a facile ionic liquid(IL)-assisted hydrothermal method was proposed to construct the multifunctional catalysts,which exhibited excellent catalytic performance in the selective aerobic oxidation of *** 8.9%cyclohexane conversion with 90%KA oi(cyclohexanol and cyclohexanone)selectivity was achieved over the optimal LMMO catalyst under mild *** effects of anion type,carbon chain length and concentration of ILs on the structure and properties of catalysts were investigated through various characterizations,indicating the structure-directing and template effect of ILs on the multifunctional *** formation of self-assembled spherical nanoparticles followed the"dissolution-nucleation-proliferation"mechanism with the introduction of 1-butyl-3-methylimidazolium hydrogen sulfate,ascribing the synergistic effect between the microenvironment of ILs and the hydrothermal ***,the high reactive oxygen concentration redox capacity,and suitable basic sites of LMMO catalysts mediated by ILs enhance the activation of C-H bonds and molecular oxygen,simultaneously influencing the adsorption and desorption of the substrate.A comprehensive understanding of the high KA oil selectivity and radical reaction mechanism was elucidated based on in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTS)and radical trapping *** recycling and regeneration experiments further illuminated that the removal of adsorbed cyclohexanone acting on the LMMO catalyst was the key to achieve high KA oil selectivity.

关键词： Ionic liquids Nanoparticle Multifunctional catalyst Cyclohexane oxidation

Starlet:Network defense resource allocation with multi-armed bandits for cloud-edge crowd sensing in IoT

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Digital Communications and Networks 2024年第3期10卷 586-596页

作者： Hui xia Ning Huang Xuecai Feng rui Zhang Chao Liu College of Computer Science and Technology Ocean University of ChinaQingdao266100China

The cloud platform has limited defense resources to fully protect the edge servers used to process crowd sensing data in Internet of *** guarantee the network's overall security,we present a network defense resource allocation with multi-armed bandits to maximize the network's overall ***,we propose the method for dynamic setting of node defense resource thresholds to obtain the defender(attacker)benefit function of edge servers(nodes)and ***,we design a defense resource sharing mechanism for neighboring nodes to obtain the defense capability of ***,we use the decomposability and Lipschitz conti-nuity of the defender's total expected utility to reduce the difference between the utility's discrete and continuous arms and analyze the difference ***,experimental results show that the method maximizes the defender's total expected utility and reduces the difference between the discrete and continuous arms of the utility.

关键词： Internet of things Defense resource sharing Multi-armed bandits Defense resource allocation

Dynamic analysis of tethered defunct satellites with solar panels

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Astrodynamics 2024年第2期8卷 297-309页

作者： rui Qi yang Zhang Heng Jiang rui Zhong School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China School of Aerospace Astronautics Beihang UniversityBeijing 100191China

A precise dynamic model for towing and removing a defunct satellite with solar panels in orbit using a tethered net often has low computational efficiency owing to the complex contact and collision between the net and panels,which is not conducive to *** solve this problem,a“single main tether–multiple subtether”bifurcation structure with beads was employed as the tethered net *** study investigated the dynamics of tethered defunct satellites with solar panels,particularly the behavior of the attitude of the tethered satellite,oscillation of the main tether,and vibration of solar panels under different *** results showed that different attachment configurations of the subtethers and the flexibility of the main tether have an evident impact on the dynamic characteristics of the system.

关键词： space debris flexible solar panels tethered towing Kane’s method dynamics modeling

In Vivo Voltammetric Imaging of Metal Nanoparticle-Catalyzed Single-Cell Electron Transfer by Fermi Level-Responsive Graphene

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Research 2024年第1期2023卷 271-280页

作者： Qing xia rui Liu Xueqin Chen Zixuan Chen Jun-Jie Zhu State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023P.R.China Shenzhen Research Institute of Nanjing University Shenzhen 518000P.R.China

Metal nanomaterials can facilitate microbial extracellular electron transfer(EET)in the electrochemically active ***,the role of nanomaterials/bacteria interaction in this process is still ***,we reported the single-cell voltammetric imaging of Shewanella oneidensis MR-1 at the single-cell level to elucidate the metal-enhanced EET mechanism in vivo by the Fermi level-responsive graphene *** oxidation currents of~20 fA were observed from single native cells and gold nanoparticle(AuNP)-coated cells in linear sweep voltammetry *** the contrary,the oxidation potential was reduced by up to 100 mV after AuNP *** revealed the mechanism of AuNP-catalyzed direct EET decreasing the oxidation barrier between the outer membrane cytochromes and the *** method offered a promising strategy to understand the nanomaterials/bacteria interaction and guide the rational construction of EET-related microbial fuel cells.

关键词： Fermi voltammetry Electron