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Acta Metallurgica Sinica(English Letters) 2012年第3期25卷 241-248页

作者： Xiaoxuan deng min JIANG Xinhua WANG School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing100083China

Inclusion characteristic and microstructure steel were evaluated with scanning electron of rare earth （RE） elements containing microscopy with energy dispersive spec- troscopy （SEM-EDS）, element-mapping, optical microscopy （OM）, and automated feature analysis （AFA） option equipped with ASPEX PSEM. Factsage was used to calculate the equilibrium inclusion composition. Based on the calculation, an inclu- sion evolution mechanism was proposed. Furthermore, line scanning analysis was used to elucidate the intra-granular acicular ferrite （IAF） nucleation mechanism. The re- sult showed that two different inclusions exist in sample steel：（Mn-A1-Si-Ti-La-Ce-O）＋MnS complex inclusion and isolated MnS inclusion. Almost all nucleation sites for IAF are complex inclusions, while single MnS inclusion cannot induce IAF. A possible formation mechanism of complex inclusion is proposed based on calculated results using Factsage, which agrees well with experimental results. A Mn-depletion zone （MDZ） which exists adjacent to the （Mn-A1-Si-Ti-La-Ce-O）＋MnS complex inclusion can account for the IAF formation. However, the low volume fraction （1.49× 10-7） of effective inclusion may result in only 10% （volume fraction） IAF.

关键词： Intra-granular acicular ferrite RE containing complex inclusion Factsage Inclusion precipitation Mn-depletion zone

Coordination game model of co-opetition relationship on cluster supply chains

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Journal of Systems Engineering and Electronics 2008年第3期19卷 499-506页

作者： Zhou min deng Feiqi Wu Sai Inst. of Systems Engineering South China Univ. of Technology Guangzhou 510640 P. R. China School of Economic Management Guangdong Univ. of Technology Guangzhou 510520 P. R. China

The research of cluster supply chains is a new direction and a hotspot of the industrial cluster theory. On the condition of the coordination game, the enterprises may be stuck on the non-efficient equilibrium status, which becomes an important problem that must be considered on cluster supply chains. A symmetrical coordination game model is constituted to describe the competition and cooperation relationship of the same-quality manufacturers on cluster supply chains. The methods of the non-cooperation game theory and the evolutionary game theory are respectively used to analyze the model, whose parameters＇ influences under each method are then compared. It can be concluded that the analysis of the evolutionary game theory is more realistic and practical. Finally, three approaches are considered to break away from being path-dependence locked-in non-efficient status during this coordination game evolutionary process, which provide the development of cluster supply chains with an effective forecasting and Pareto optimizing method.

关键词： cluster supply chains coordination game non-cooperation game theory evolutionary game theory,path-dependence.

早期健康教育对脑血栓患者肢体功能康复的影响

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中国当代医药 2017年第13期24卷 183-185,188页

作者：冯利勉巢珊珊彭莹莹邓国敏李玉婷南方医科大学第五附属医院神经内科广东广州510900

目的探讨早期健康教育对脑血栓患者肢体功能康复的影响情况。方法选取2015年1月~2016年11月神经内科收治的280例脑血栓患者的临床资料,依据护理措施不同分为对照组(常规的康复护理指导)140例和观察组(早期健康教育)140例。比较两组患者... 详细信息

目的探讨早期健康教育对脑血栓患者肢体功能康复的影响情况。方法选取2015年1月~2016年11月神经内科收治的280例脑血栓患者的临床资料,依据护理措施不同分为对照组(常规的康复护理指导)140例和观察组(早期健康教育)140例。比较两组患者护理前后神经功能损伤程度、生活质量、复发率和患者满意度情况。结果两组患者护理前NIHSS评分比较,差异无统计学意义(P>0.05),护理后两组患者NIHSS评分均有所降低,与护理前比较,差异有统计学意义(P0.05),护理后两组患者各指标评分均有所提高,与护理前比较,差异有统计学意义(P<0.05);观察组各指标评分均高于对照组,差异有统计学意义(P<0.05)。观察组患者复发率低于对照组,患者护理满意度高于对照组,差异均有统计学意义(P<0.05)。结论早期健康教育在脑血栓患者中应用,可以降低神经功能损伤程度评分,改善生活质量,提高患者满意度,值得临床推广应用。

关键词：早期健康教育脑血栓肢体功能康复

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贵阳学院科学教育专业学生创新创业初步研究

教育教学论坛 2016年第50期 120-121页

作者：成刚刘伟郁叶孝勇戴亮任永力邓国民贵阳学院贵州贵阳550005

在"大众创业,万众创新"的背景下国家大力支持创新创业,培养大学生创新创业能力是推进创新型国家建设的需要,而创新性人才才是建设创新型国家的关键。培养基础扎实专业知识过硬、富有创新精神、冒险精神、钻研科研精神,能够适应社会需求... 详细信息

在"大众创业,万众创新"的背景下国家大力支持创新创业,培养大学生创新创业能力是推进创新型国家建设的需要,而创新性人才才是建设创新型国家的关键。培养基础扎实专业知识过硬、富有创新精神、冒险精神、钻研科研精神,能够适应社会需求并在工作当中脱颖而出的人才,是全国各大高等院校在教育创新改革当中担当的首要重要任务。

关键词：科学教育创新众创课程建设

Finite-time coordination control for formation flying spacecraft

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Journal of Systems Engineering and Electronics 2014年第5期25卷 859-867页

作者： Yong guo Shenmin Song Liwei deng Center for Control Theory and Guidance Technology Harbin Institute of Technology

This paper investigates a distributed coordination control scheme using an adaptive terminal sliding mode for formation flying spacecraft with coupled attitude and translational dynamics. In order to overcome the singularity of the traditional fast terminal sliding manifold, a novel fast terminal sliding manifold is given. And then, based on the adaptive control method, a continuous robust coordinated controller is designed to compensate external disturbances and to alleviate the chattering phenomenon. The theoretical analysis shows that the coordinated controller can guarantee the finite-time stability of the overall closed-loop system through local information exchange, and numerical simulations also demonstrate its effectiveness.

关键词： formation flying coordinated control attitude and translational coupling finite-time stability adaptive control.

Constraining the Earth-mass Primordial Black Hole Mergers Model of the Non-repeating FRBs Using the First CHIME/FRB Catalog

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Research in Astronomy and Astrophysics 2024年第9期24卷 76-82页

作者： min Meng Qiu-Ju Huang Can-min deng Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China

In this paper,we upgrade the constraints for the Earth-mass primordial black hole mergers model based on the first Canadian Hydrogen Intensity Mapping Experiment(CHIME)/fast radio burst(FRB)*** the null hypothesis that the observed non-repeating FRBs originate from Earth-mass primordial black hole mergers,we find that how the charges were distributed in the primordial black hole population is well described by a double powerlaw function with typical charge value of law function with typical charge value of q_(c)/10^(-5)=1.60_(-0.28)^(+0.28),where the power-law index α_(1)=2.33_(-0.18)^(+0.15) for q

关键词： black hole physics (stars:)gamma ray burst:general (cosmology:)dark matter

Toughening mechanisms of a high-strength acicular ferrite steel heavy plate

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International Journal of minerals,Metallurgy and Materials 2010年第5期17卷 567-572页

作者： Zhi-qiang Cao Yan-ping Bao Zheng-hai Xia deng Luo Ai-min guo Kai-ming Wu Engineering Research Institute University of Science and Technology Beijing Beijing 100083 China Research ＆ Development Center Xiangtan Iron and Steel Co. Ltd. Xiangtan 411101 China Hubei Province Key Laboratory for Systems Science on Metallurgical Processing Wuhan University of Science and Technology Wuhan 430081 China

An ultra-low carbon acicular ferrite steel heavy plate was obtained with an advanced thermo-mechanical control process-relaxed precipitation controlled transformation （TMCP-RPC） at Xiangtan Steel, Valin Group. The heavy plate has a tensile strength of approximately 600 MPa with a lower yield ratio. The impact toughness of the heavy plate achieves 280 J at ？40°C. The fine-grained mixed microstructures of the heavy plate mainly consist of acicular ferrite, granular bainite, and polygonal ferrite. The high strength and excellent toughness of the heavy plate are attributed to the formation of acicular ferrite microstructure. The prevention of blocks of martensite/retained austenite （M/A） and the higher cleanness are also responsible for the superior toughness.

关键词： high-strength steel microstructure mechanical properties acicular ferrite

Structure and performance analysis of fusion positioning system with a single 5G station and a single GNSS satellite

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Geo-Spatial Information Science 2023年第1期26卷 94-106页

作者： Chi guo Shufeng Qi Wenfei guo Chenlong deng Jingnan Liu GNSS Research Center Wuhan UniversityWuhanChina Hubei Luojia Laboratory WuhanChina

NaGlobal vigation Satellite System(GNSS)positioning technology is widely used for its high precision,global,and all-weather ***,in complex environments such as urban canyons,GNSS performance is often degraded due to signal occlusion and even fails to achieve positioning due to the insufficient visible *** of the characteristics of large band-width,low latency,and high Base Station(BS)density,the fifth-Generation mobile communication(5G)technology has gradually become a trend for positioning in cities while offering traditional communication *** supply the communication demands of the User Equipment(UE),only one BS is usually considered to establish a connection with the UE during the BS ***,the positioning accuracy with a single BS in urban canyons will be significantly *** further improve the positioning accuracy in such extreme scenarios,this paper proposes a simplified 5G/GNSS fusion positioning system architecture using observations from only a 5G BS and a GNSS *** this system,the GNSS receiver is mounted on the 5G BS,and the measurements provided by the receiver are used to form the differential code and complete the position *** positioning mathematical models of the system based on the original code and differential code are ***,the impacts of the measurements noise and the time synchronization error on the positioning accuracy are analyzed ***,the positioning performance is investigated by a set of simulation *** results show that under the existing 5G measurement noise and 2 m’s code measurement noise,the improvement of the differential code based fusion positioning compared with the 5G-only positioning is more than 32%,which is also about 6%higher than the original code based fusion ***,this improvement is not affected by the time synchronization error between the BS and the GNSS satellite.

关键词： The fifth-generation mobile communication(5G)positioning 5G/Global navigation satellite system(GNSS)fusion positioning differential code error analysis

Al-modification for PS-PVD 7YSZ TBCs to improve particle erosion and thermal cycle performances

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Journal of Advanced Ceramics 2022年第7期11卷 1093-1103页

作者： Xiaofeng ZHANG ming LI Ao ZHANG Shuangquan guo Jie MAO Chunming deng Panpan WANG Changguang deng Junli FENG min LIU Kesong ZHOU Cheng LAI National Engineering Laboratory for Modern Materials Surface Engineering Technology&the Key Lab of Guangdong for Modern Surface Engineering Technology Institute of New MaterialsGuangdong Academy of ScienceGuangzhou 510650China PERA Guangzhou Information Technology Co. Ltd.Guangzhou 510650China Chengdu Holy(Group)Industry Co. Ltd.Chengdou 610000China School of Aviation and Mechanical Engineering Changzhou Institute of TechnologyChangzhou 213032China Shenzhen Customs Industrial Products Inspection Technology Center Shenzhen 518067China

Plasma spray-physical vapor deposition(PS-PVD)as a novel process was used to prepare feather-like columnar thermal barrier coatings(TBCs).This special microstructure shows good strain tolerance and non-line-of-sight(NLOS)deposition,giving great potential application in ***,due to serious service environment of aero-engine,particle erosion performance is a weakness for PS-PVD 7YSZ *** a solution,an Al-modification approach was proposed in this *** in-situ reaction of Al and ZrO2,anα-Al2O3 overlay can be formed on the surface of 7YSZ columnar *** results demonstrate that this approach can improve particle erosion resistance since hardness improvement of Al-modified ***,as another important performance of thermal cycle,it has a better optimization with 350-cycle water-quenching,compared with the as-sprayed TBCs.

关键词： plasma spray-physical vapor deposition(PS-PVD) thermal barrier coatings(TBCs) Al-modification particle erosion resistance thermal cycle performance

Local time and Tanaka formula of G-martingales

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Applied Mathematics(A Journal of Chinese Universities) 2019年第4期34卷 468-479页

作者： LIU guo-min School of Mathematical Sciences Fudan University

The objective of this paper is to study the local time and Tanaka formula of symmetric *** introduce the local time of G-martingales and show that it belongs to the G-expectation space LG^2(ΩT).By a localization argument,we obtain the bicontinuous modification of local ***,we give the Tanaka formula for convex functions of G-martingales.

关键词： G-martingale Local time Tanaka formula