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The role of Re in improving the oxidation-resistance of a Re modified PtAl coating on Mo-rich single crystal superalloy

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Journal of Materials Science & Technology 2020年第23期58卷 63-72页

作者： Jingchen li liangliang Wei Jian He hao Chen Hongbo guo School of Materials Science and Engineering Beihang UniversityBeijing100191China Research Institute for Frontier Science Beihang UniversityBeijing100191China Key Laboratory of High-Temperature Structure Materials and Protective Coatings(Ministry of Industry and Information Technology) Beihang UniversityBeijing100191China Department of Mechanical Materials and Manufacturing EngineeringFaculty of Science and EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China

A novel Re modifiedβ-(Ni,Pt)Al coating was prepared on a Mo-rich Ni_3 Al-based single crystal(SC)superalloy by electro-deposition of Re/Pt dual films and low-activity *** isothermal oxidation behavior of the Re modifiedβ-(Ni,Pt)Al coating and traditionalβ-(Ni,Pt)Al coating was comparatively studied at 1100℃.Apparent spallation of oxide scale was found on the surface of traditionalβ-(Ni,Pt)Al coating after 300 h isothermal exposure,which mainly resulted from the evaporation of Mo-containing *** is further found that the outward diffusion of Mo from the SC substrate was effectively inhibited in the Re modifiedβ-(Ni,Pt)Al coating by forming theσ-MoRe phase both at the coating/superalloy interface and grain *** is also revealed that the addition of Re can stabilise Mo to form theσ-MoRe phase,allowing the improved oxidation resistance of the Re modifiedβ-(Ni,Pt)Al coating.

关键词： Superalloy PtAl coatings Oxidation Diffusion barrier

Pink-1在百草枯中毒大鼠肾损伤中的表达及意义

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解剖科学进展 2018年第2期24卷 191-194页

作者：王晓凤郭振豪李秋河赵敏中国医科大学附属盛京医院急诊科沈阳110004

目的探讨Pink-1在百草枯(PQ)中毒大鼠肾损伤中的表达及意义。方法35只健康SD大鼠随机分为7组,每组5只,分别为对照组(NC组)、PQ染毒3h、6h、9h、12h、24h、48h组。用HE染色方法分别观察各组大鼠肾组织病理学变化,同时采用IHC、Western b... 详细信息

目的探讨Pink-1在百草枯(PQ)中毒大鼠肾损伤中的表达及意义。方法35只健康SD大鼠随机分为7组,每组5只,分别为对照组(NC组)、PQ染毒3h、6h、9h、12h、24h、48h组。用HE染色方法分别观察各组大鼠肾组织病理学变化,同时采用IHC、Western blot方法观察Pink-1蛋白表达情况。结果对照组肾脏组织结构清晰,染毒组结构清晰度下降。染毒3h即可见充血、水肿等病理变化,随时间延长而加重,肾小球亦可受累。与对照组相比,PQ组染毒9h、12h、24h、48h的Pink-1蛋白表达量上升(P<0.05)。结论Pink-1蛋白可能参与百草枯中毒肾损伤的病理机制。

关键词：百草枯肾损伤 Pink-1 SD大鼠

Photocatalytic degradation of mixed pollutants in aqueous wastewater using mesoporous 2D/2D TiO_(2)(B)-BiOBr heterojunction

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Journal of Materials Science & Technology 2021年第11期70卷 176-184页

作者： liping Han Bo li hao Wen Yuxi guo Zhan lin Guangzhou Key Laboratory of Clean Transportation Energy Chemistry School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006China

There are multiple contaminants in practical wastewater;and the photodegradation of mixed pollutants is a challenge in the field of ***,we design a mesoporous 2D/2D TiO_(2)(B)-BiOBr heterojunction photocatalyst for the photodegradation of mixed *** a coupling structure results in an enhancement in the disconnection of photoexcited carriers,and the increase of absorption and reaction *** 2D/2D TiO_(2)(B)-BiOBr demonstrates outstanding photocatalytic activity for photodegrading rhodamine B(RhB),methyl orange(MO),tetracycline hydrochloride(TCH),and bisphenol A(BPA)simultaneously under visible light,which is 4.7,1.4,23 and 16.4 times as high as that of original BiOBr,*** work represents a possible solution to devise promising and efficient photocatalysts for the treatment of practical wastewater in the near future.

关键词： 2D/2D TiO_(2)(B)-BiOBr Heterojunction Mixed pollutants Photodegradation

Unraveling the mechanism of action of Shangxia liangji formula for treating insomnia:a metabolomics and network pharmacology approach

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Traditional Medicine Research 2025年第2期10卷 16-29页

作者： Xia-Jie Quan hao liang Yong-Hong Tang li Jiang Xiong-Ying Ji Feng-Ying Zhang Ping Zhang Bo Ouyang Department of Information The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Neurology The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Gastroscopy The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Traditional Chinese Medicine The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China

Background:Insomnia is a prevalent clinical condition and Shangxia liangji formula(SXLJF)is a well-established method of ***,the specific mechanism of action of SXLJF remains ***:The mouse model of insomnia was established by intraperitoneal injection of ***-two mice were randomly divided into a negative control group,model group,SXLJF group(18.72 g/kg/day),and positive control group(diazepam,2 mg/kg)and treated with the corresponding drugs for 7 consecutive *** open field test and pentobarbital-induced sleeping test were ***-MS-based untargeted metabolomics and network pharmacology were applied to explore the potential targets of SXLJF for treating ***,key targets were validated using ***:Behavioral tests demonstrated that SXLJF reduced the total distance,average velocity,central distance,and sleep latency,and prolonged sleep *** and network pharmacology revealed potential targets,signaling pathways,metabolic pathways,and metabolites associated with the anti-insomnia effects of ***,tyrosine hydroxylase(TH)and tyrosine metabolism emerged as crucial metabolic pathways and targets,***-qPCR results supported the role of TH in the mechanism of SXLJF in treating ***:In conclusion,TH and tyrosine metabolism may represent significant targets and pathways for SXLJF in treating insomnia.

关键词： Shangxia liangji formula insomnia metabolomics network pharmacology tyrosine hydroxylase tyrosine metabolism

A Wind Tunnel Experimental Study on the Wake Characteristics of a Horizontal Axis Wind Turbine

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Journal of Thermal Science 2025年第1期 145-158页

作者： guo Xingduo li Yinran li Rennian MA Yulong WEI Kui College of Energy and Power Engineering Lanzhou University of Technology Key Laboratory of Fluid Machinery and Systems Gansu Provincial Technology Centre for Wind Turbines

The characteristics of wind turbine wakes are influenced by multiple factors,including the atmospheric boundary layer(ABL) wind and wind turbine operating conditions(e.g.,tip speed ratio and yaw angle).In this study,two types of ABL winds with different velocity gradients and turbulence intensities are generated in a wind tunnel through configurations of spires,baffles,and various numbers of roughness elements.A wind turbine with a rotor diameter of 0.8 m and a hub height of 0.6 m is tested under varying tip speed ratios,yaw angles,and ABL wind *** results indicate that the streamwise velocity deficit in the near-wake region becomes more pronounced with an increase in the tip speed ratio,while the far-wake velocity deficit remains largely unaffected by changes in the tip speed *** the yaw angle increases,the wake deflection becomes more prominent and the wake narrows;the offset of the wake center at various downstream positions grows linearly,reaching a maximum value of approximately half the rotor ***,the turbulence level and influence range in the wake region are reduced when the turbine is *** ABL wind conditions,high turbulence intensity in the incoming flow accelerates wake recovery,and the Reynolds stress at different lateral positions tends to become consistent with increasing longitudinal ***,turbulence has a significant impact on the meandering characteristics of the wind turbine wake,with greater fluctuations in the wake center observed under higher turbulence ***,this study provides insights that could inform the optimal operation of wind farms.

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川中--川南地区上三叠统须家河组气藏异常压力分布及成因

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世界地质 2010年第2期29卷 298-304页

作者：郝国丽柳广弟谢增业杨威谢武仁中国石油大学油气资源与探测国家重点实验室北京102249 中国石油大学资源与信息学院北京102249 中国石油勘探开发研究院廊坊分院河北廊坊065007

通过对川中--川南地区须家河组气藏异常压力的纵向和平面分布特征研究,结合沉积背景、构造演化和生烃作用等分析了异常高压的成因;并利用剥蚀量、流体包裹体均一温度及改进的Lee--Kesler状态方程识别了古今地温差与剥蚀厚度及其与压力... 详细信息

通过对川中--川南地区须家河组气藏异常压力的纵向和平面分布特征研究,结合沉积背景、构造演化和生烃作用等分析了异常高压的成因;并利用剥蚀量、流体包裹体均一温度及改进的Lee--Kesler状态方程识别了古今地温差与剥蚀厚度及其与压力系数之间的关系。川中--川南须家河组各储层段压力系数在平面上由西北向南逐渐降低,纵向上呈常压(压力系数0.90～1.1)、高压(压力系数1.1～1.4)及超高压(压力系数>1.4)三段式分布。生烃增压和储层的致密化是本区产生异常高压的主要原因。各气藏古今地温差为35℃～70℃,古今地温差与剥蚀厚度呈正相关关系、与压力系数呈负相关关系,说明川中--川南须家河组现今压力分布状态是地层抬升剥蚀造成的。

关键词：川中--川南地区须家河组异常压力古今地温差

Analysis and assessment of bridge health monitoring mass data——progress in research/development of “Structural Health Monitoring”

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Science China(Technological Sciences) 2012年第8期55卷 2212-2224页

作者： li AiQun DING Youliang WANG hao guo Tong Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education Southeast UniversityNanjing 210096China

The "Structural Health Monitoring" is a project supported by National Natural Science Foundation for Distinguished Young Scholars of China(Grant No.50725828).To meet the urgent requirements of analysis and assessment of mass monitoring data of bridge environmental actions and structural responses,the monitoring of environmental actions and action effect modeling methods,dynamic performance monitoring and early warning methods,condition assessment and operation maintenance methods of key members are systematically studied in close combination with structural characteristics of long-span cable-stayed bridges and suspension *** paper reports the progress of the project as follows.(1) The environmental action modeling methods of long-span bridges are established based on monitoring data of temperature,sustained wind and *** action effect modeling methods are further developed in combination with the multi-scale baseline finite element modeling method for long-span bridges.(2) The identification methods of global dynamic characteristics and internal forces of cables and hangers for long-span cable-stayed bridges and suspension bridges are proposed using the vibration monitoring data,on the basis of which the condition monitoring and early warning methods of bridges are developed using the environmental-condition-normalization technique.(3) The analysis methods for fatigue loading effect of welded details of steel box girder,temperature and traffic loading effect of expansion joint are presented based on long-term monitoring data of strain and beam-end displacement,on the basis of which the service performance assessment and remaining life prediction methods are developed.

关键词： structural health monitoring bridge mass data condition assessment environmental action

Matrix transformations of l^q(X) to l^p(Y )

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Applied Mathematics(A Journal of Chinese Universities) 2012年第1期27卷 78-86页

作者： guo hao li Rong-lu WU Jun-de Department of Mathematics Harbin Institute of TechnologyHarbin 150001China Department of Mathematics Zhejiang UniversityHangzhou 310027China

Let X and Y be Banach spaces, 0 〈 q 〈＋∞, i ≤ p 〈＋∞. In this paper, we characterize matrix transformations of lq （ X ） to lp （ Y ）.

关键词： matrix transformation, sequence space demi-linear mapping.

Modeling flow stress and grain size of GCr15 bearing steel at hightemperature deformation near end of solidification

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Journal of Iron and Steel Research International 2023年第1期30卷 88-101页

作者： Rui-hao li Hai-jun li Ning Xiang guo-dong Wang li-juan Bai The State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819LiaoningChina HBIS Group Technology Research Institute Shijiazhuang 050000HebeiChina

Hot-core heavy reduction rolling is an innovative technology for continuous casting billet at the end of *** deformation characteristics of GCr15 bearing billet were investigated over the temperature range of 1000-1300℃ with the strain rate of 0.001-10 s^(-1) by the Gleeble 3800 thermo-mechanical ***,the true stress-strain data are calibrated by the friction correction method to acquire accurate parameters near the ***,the Laasraoui-type constitutive model and dynamic austenite grain size model are established by the thermal compression results and corrosion experimental results,and the predicted values of the experimental interval are obtained by using the ***,the accuracy of models is verified by comparing the predicted curves with the experimental *** but not the least,the dynamic parameters between solidus and liquidus are predicted by the two models,and the difficulty of experimental collecting near the melting point is solved.

关键词： Hot-core heavy reduction rolling High-temperature deformation GCr15 bearing billet Dynamic recrystallization Dynamic grain model