检索结果-南通市图书馆

Effect of Stress and Galvanic Factors on the Corrosion Behave of Aluminum Alloy

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2018年第3期33卷 688-696页

作者：崔腾飞刘道新 SHI Ping'an LIU Jianjun yi yihui ZHOU Hongliang Institute of Corrosion and Protection Northwestern Polytechnical University Xi'an 710072 China China Academy of Engineering Physics Mianyang 621900 China

The interaction between stress and galvanic during the corrosion process of 5050 aluminum alloys was studied and the evolution of mechanics properties was indicated. Electrochemical impedance technique and scanning electron microscopy were used to analyze the surface electrochemical states and the corrosion morphology. At the same time, corrosion kinetics and thermodynamic theory were used to analyze the influencing mechanism of the stress factor and the galvanic factor. The results show that both of galvanic factor and tensile stress factor can increase the corrosion potential of aluminum alloys and result in the corrosion resistance decrease. With decreasing corrosion resistance, the mechanical properties of aluminum alloys decrease. These phenomena are attributed to two reasons： One is that aluminum alloys may under the condition of anodic polarization after coupled with 40 Cr Ni Mo A steel, so the corrosion can be promoted; The other is that with increasing stress, the electrochemical potential of 5050 aluminum alloys decreases and the potential difference between two materials increases, so the corrosion becomes serious. Compared to the stress factor, the galvanic factor is significant.

关键词： aluminum alloy stress galvanic mechanical-electrochemistry electrochemical impedances spectroscopy

在线全文

学校读者我要写书评

暂无评论

传统生肖图式在釉下五彩瓷创作中的运用

陶瓷研究 2024年第2期39卷 141-143页

作者：易忆卉湖南工业大学包装设计艺术学院株洲412007

本文以传统生肖图式和釉下五彩瓷为主要研究对象,探讨二者的结合及其文化价值和艺术特征,讨论生肖图式的历史和文化意义,以及釉下五彩瓷的特性和价值。同时探索如何在继承与创新中,将生肖图式融入釉下五彩瓷创作,使其在符合现代审美的同... 详细信息

本文以传统生肖图式和釉下五彩瓷为主要研究对象,探讨二者的结合及其文化价值和艺术特征,讨论生肖图式的历史和文化意义,以及釉下五彩瓷的特性和价值。同时探索如何在继承与创新中,将生肖图式融入釉下五彩瓷创作,使其在符合现代审美的同时,保留传统艺术的魅力。

关键词：釉下五彩瓷工艺美术陶瓷绘画

维普期刊数据库博看期刊

在线全文

学校读者我要写书评

暂无评论

基于花鸟题材的釉下五彩创作研究

陶瓷 2024年第1期 68-70页

作者：易忆卉湖南工业大学包装设计艺术学院湖南株洲412007

笔者主要从历史和审美的角度探析釉下五彩瓷花鸟画的发展路径及其风格类型。通过对其起源和发展、艺术特点、影响和传承以及当代发展趋势的研究,揭示釉下五彩瓷花鸟画的独特之处。希望通过笔者的初步探索,推进大众对釉下五彩瓷花鸟画的... 详细信息

笔者主要从历史和审美的角度探析釉下五彩瓷花鸟画的发展路径及其风格类型。通过对其起源和发展、艺术特点、影响和传承以及当代发展趋势的研究,揭示釉下五彩瓷花鸟画的独特之处。希望通过笔者的初步探索,推进大众对釉下五彩瓷花鸟画的认知,并为其传承和发展贡献力量。

关键词：釉下五彩工艺美术中国画花鸟画

维普期刊数据库博看期刊

煤基胶体复合黏结剂制备钒钛磁铁矿球团的研究

在线全文

学校读者我要写书评

暂无评论

中国矿业大学学报 2022年第3期51卷 445-453页

作者：易毅辉张津张鑫罗骏张永康李光辉姜涛中南大学资源加工与生物工程学院湖南长沙410083

黏结剂是生产球团必不可少的原料之一,对球团矿的质量具有重要影响.煤基胶体复合黏结剂(3 Co-binder)是以低阶煤为主要原料制备的新型铁矿球团黏结剂,具有黏结性能好、用量少、价格低廉、在球团中残留量极低等特点和优势.首次介绍了煤... 详细信息

黏结剂是生产球团必不可少的原料之一,对球团矿的质量具有重要影响.煤基胶体复合黏结剂(3 Co-binder)是以低阶煤为主要原料制备的新型铁矿球团黏结剂,具有黏结性能好、用量少、价格低廉、在球团中残留量极低等特点和优势.首次介绍了煤基胶体复合黏结剂在钒钛磁铁矿氧化球团中的应用效果.实验室小型试验和模拟带式焙烧机扩大化试验结果表明:以1.0%(干基添加量0.14%)煤基胶体复合黏结剂完全替代1.5%改性膨润土,生球和焙烧球团质量均能满足要求,生球的落下强度为10.3次/0.5 m、抗压强度为16.9 N、爆裂温度为570℃;相比于改性膨润土,使用煤基胶体复合黏结剂制备球团矿的铁品位提高0.9%,球团矿强度达2409 N.煤基胶体复合黏结剂在氧化球团生产中的应用可推进高炉“精料”方针的落实,助力钢铁工业“双碳”目标的实现.

关键词：复合黏结剂煤膨润土钒钛磁铁矿氧化球团

在线全文

学校读者我要写书评

暂无评论

铬精矿烧结大型化工艺研究与应用

铁合金 2018年第1期49卷 15-19页

作者：李文武李祥易毅辉北京首钢国际工程技术有限公司北京中国100043

铬系铁合金冶炼中,利用铬精矿生产的铬烧结矿可有效降低铁合金冶炼成本。文章针对铬精矿烧结的特点,论述了铬精矿烧结的工艺流程和主要设备选型,创新设计并建造了国内最大的一条采用120 m2带式烧结机配套环冷机生产铬烧结矿的生产线。... 详细信息

铬系铁合金冶炼中,利用铬精矿生产的铬烧结矿可有效降低铁合金冶炼成本。文章针对铬精矿烧结的特点,论述了铬精矿烧结的工艺流程和主要设备选型,创新设计并建造了国内最大的一条采用120 m2带式烧结机配套环冷机生产铬烧结矿的生产线。通过对生产的跟踪,摸索出每吨铬烧结矿配加膨润土量控制在110±10 kg、混合料的水分控制在7.5%±0.5%时,混合料制粒效果和烧结料层的透气性较好;每吨铬烧结矿配加焦粉量控制在130±10 kg时,能够保证烧结矿质量满足要求,铬烧结矿的成品率达70%,并提出了稳定烧结生产的措施。该生产线的投产为铬精矿烧结的大型化发展提供了宝贵的经验。

关键词：铬铁合金铬精矿铬烧结矿带式烧结机

Interdecadal Variability of the Afro-Asian Summer Monsoon System

在线全文

学校读者我要写书评

暂无评论

Advances in Atmospheric Sciences 2017年第7期34卷 833-846页

作者： yi LI yihui DING Weijing LI Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of Information Science and TechnologyNanjing 210044China Chinese Academy of Meteorological Sciences Beijing 100081China National Climate Center Beijing 100081China

The Afro-Asian summer monsoon is a zonally planetary-scale system, with a large-scale rainbelt covering Africa, South Asia and East Asia on interdecadal timescales both in the past century（1901-2014） and during the last three decades（1979-2014）. A recent abrupt change of precipitation occurred in the late 1990 s. Since then, the entire rainbelt of the Afro-Asia monsoon system has advanced northwards in a coordinated way. Consistent increases in precipitation over the Huanghe-Huaihe River valley and the Sahel are associated with the teleconnection pattern excited by the warm phase of the Atlantic Multidecadal Oscillation（AMO）. A teleconnection wave train, with alternating cyclones/anticyclones, is detected in the upper troposphere. Along the teleconnection path, the configuration of circulation anomalies in North Africa is characterized by coupling of the upper-level anticyclone（divergence） with low-level thermal low pressure（convergence）, facilitating the initiation and development of ascending motions in the Sahel. Similarly, in East Asia, a coupled circulation pattern also excites ascending motion in the Huanghe-Huaihe River valley. The synchronous increase in precipitation over the Sahel and Huanghe-Huaihe River valley can be attributed to the co-occurrences and in-phase changes of ascending motion. On the other hand, the warm phase of the AMO results in significant warming in the upper troposphere in North Africa and the northern part of East Asia. Such warming contributes to intensification of the tropical easterly jet through increasing the meridional pressure gradient both at the entrance region（East Asia） and the exit region（Africa）. Accordingly, precipitation over the Sahel and Huanghe-Huaihe River valley intensifies, owing to ageostrophic secondary cells. The results of this study provide evidence for a consistent and holistic interdecadal change in the Afro-Asian summer monsoon.

关键词： monsoon troposphere warming Africa valley ascending meridional divergence tropical northward

包钢624m^2大型带式球团焙烧机设计创新与应用

在线全文

学校读者我要写书评

暂无评论

工程与技术 2018年第1期 12-18页

作者：智谦韩志国易毅辉李长兴北京首钢国际工程技术有限公司冶金工程分公司烧结球团事业部北京100043 北京市冶金三维仿真设计工程技术研究中心北京100043

包钢新建成一条国内最大的624m^2大型带式焙烧机球团生产线，年产氧化球团500万吨。在设计过程中，对风流系统进行了优化设计，自主设计开发了多项新型设备，如大型球团干燥窑、往复式布料机、回转支撑造球机和稳流给料斗等，并集成应... 详细信息

包钢新建成一条国内最大的624m^2大型带式焙烧机球团生产线，年产氧化球团500万吨。在设计过程中，对风流系统进行了优化设计，自主设计开发了多项新型设备，如大型球团干燥窑、往复式布料机、回转支撑造球机和稳流给料斗等，并集成应用了立式强力混合机和高压辊磨机等多项国内外大型装备。设计过程充分考虑节能环保因素，生产能耗低，粉尘排放、噪音污染均维持较低水平，除尘灰二次利用，无固体废弃物外排。自2015年底投产以来，设备运行稳定，生产指标良好，球团的TFe达到65％以上，抗压强度≥3100N，工序能耗17.05kgce／t，达到国际先进水平，实现了良好的经济社会效益。

关键词：带式焙烧机球团设计创新节能环保

Performance of CAMS-CSM in Simulating the Shortwave Cloud Radiative Effect over Global Stratus Cloud Regions: Baseline Evaluation and Sensitivity Test

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Meteorological Research 2019年第4期33卷 651-665页

作者： yihui ZHOU yi ZHANG Xinyao RONG Jian LI Rucong YU State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029 University of Chinese Academy of Sciences Beijing 100049 State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081

The ability of climate models to correctly reproduce clouds and the radiative effects of clouds is vitally important in climate simulations and *** this study,simulations of the shortwave cloud radiative effect(SWCRE)using the Chinese Academy of Meteorological Sciences Climate System Model(CAMS-CSM)are *** relationships between SWCRE and dynamic–thermodynamic regimes are examined to understand whether the model can simulate realistic processes that are responsible for the generation and maintenance of stratus *** eastern China,CAMS-CSM well simulates the SWCRE climatological state and stratus cloud *** model captures the strong dependence of SWCRE on the dynamic *** the marine boundary layer regions,the simulated SWCRE magnitude is weaker than that in the observations due to the lack of low-level stratus clouds in the *** model fails to simulate the close relationship between SWCRE and local stability over these regions.A sensitivity numerical experiment using a specifically designed parameterization scheme for the stratocumulus cloud cover confirms this *** schemes that directly depict the relationship between the stratus cloud amount and stability are beneficial for improving the model performance.

关键词： Chinese Academy of Meteorological Sciences Climate System Model (CAMS-CSM) shortwave cloudradiative effect (SWCRE) stratus cloud model errors

Understanding the Performance of an Unstructured-Mesh Global Shallow Water Model on Kinetic Energy Spectra and Nonlinear Vorticity Dynamics

在线全文

学校读者我要写书评

暂无评论

Journal of Meteorological Research 2019年第6期33卷 1075-1097页

作者： Lei WANG yi ZHANG Jian LI Zhuang LIU yihui ZHOU State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 National Supercomputing Center in Wuxi Wuxi 214011 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029

A strategy for evaluating a global shallow water model based on aspects of kinetic energy spectra and nonlinear vorticity dynamics is proposed in this *** kinetic energy spectra and nonlinear vorticity dynamics of a recently developed global shallow water model on an unstructured mesh are evaluated in comparison with the benchmark solutions from a global high-resolution spectral *** results show that the kinetic energy spectra,the rotational and divergent components,the stationary and transient components,and the nonlinear spectral fluxes of the developed shallow water model agree well with those generated by the reference *** addition,the influence of different flux operators for transporting the potential vorticity(PV)is assessed *** is indicated that the second-order flux operator leads to a spurious increase in the kinetic energy at the tail of the spectrum,whereas the upwind third-order flux operator does not support this behavior owing to implicit numerical ***,the nonlinear vorticity dynamics is studied by using colliding *** is found that the grid-point model maintains the symmetrical pattern of vortices,and generates similar kinetic energy spectra and nonlinear spectral fluxes to the reference *** evaluation provides a reference for assessing the shallow water model in terms of nonlinear dynamics,and the developed global shallow water model presents a good example.

关键词： kinetic energy spectra nonlinear vorticity dynamics shallow water model icosahedral model model evaluation