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Determination of Working Pressure for Airport Runway Rubber Mark Cleaning Vehicle Based on Numeric Simulation

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Computer Modeling in Engineering & Sciences 2019年第9期120卷 799-813页

作者： haojun peng Zhongwei Wu Jinbing Xia Bolin Dong Yuntao peng Linghe Wang Xingxing Ma Wei Shen School of Mechanical Engineering Hefei University of TechnologyHefeiChina Fire Detachment in Xi’an Xianyang International Airport Co. Ltd.XianyangChina Security Service Co.Ltd. Xi’an Xianyang International AirportChina West Airport GroupXianyangChina

In this paper,numeric simulations are performed for three dimension models built according to actual surface cleaner in airport runway rubber mark cleaning vehicle using ANSYS FLUENT software on the basis of previous research finished by the *** analyzing the simulated flow fields under different standoff distances between nozzle outlet and runway surface and different discharge pressures at nozzle outlet,the relationships of normal stress and shear stress at striking point to outlet pressure and standoff distance are ***,the most appropriate discharge pressure at nozzle outlet for the studied surface cleaner model is found,and this will provide theoretical basis for future rubber mark cleaning process in airports and equipment model selection in subsequent design of airport runway rubber mark cleaning vehicles.

关键词： Runway cleaning surface cleaner numeric simulation nozzle pressure pump model selection

The atomic parameter model for the fifth and sixth transition metal quasicrystal alloys(Mc=0.5)

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Science China(Physics,Mechanics & Astronomy) 2009年第10期52卷 1593-1600页

作者： LIAO ShuZhi GUI XuChun ZHANG Chun peng haojun XIE HaoWen OUYANG YiFang ZHANG BangWei Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of PhysicsHunan Normal UniversityChangsha 410081China College of Mathematics and Computer Science Hunan Normal UniversityChangsha 410081China Department of Physics Guangxi UniversityNanning 530004China Department of Applied Physics Hunan UniversityChangsha 410081China International Centre for Materials Physics Chinese Academy of SciencesShenyang 110015China

The forming ability of quasicrystal phase has a relationship with the atomic bond factors based on differences in atom size and electron ***,those factors or their combination are used to describe the forming ability,stability of alloys,*** this paper,the quasicrystal alloy forming abilities for the fifth and sixth transition metals(Y,Zr,Nb,Mo,Ru,Rh,Pd and La,Hf,Ta,W,Re,Os,Ir,Pt) based alloys have been studied by the size factor and the atomic parametric *** has been found that an ellipse curve can be used to separate the quasicrystal formed area from the informed area in the size factor and atomic parameters functional *** ellipse curve can be defined by an equation(x-m)2/c2+(y?n)2/d2=*** overall reliabilities for the model are up to 97.4% and 95.5% for the fifth and the sixth transition metals based quasicrystal alloys,***,the ellipse parameters m,n,c and d can be paraphrased by some appropriate parameters for each host metal.

关键词： quasicrystal transition metal atomic parametric model ellipse model

Size and composition dependence of melting temperature of binary nanoparticles

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Science China(Physics,Mechanics & Astronomy) 2011年第5期54卷 897-900页

作者： LU YunBin LIAO ShuZhi XIE Bin CHEN Jia peng haojun ZHANG Chun ZHOU HuiYing XIE HaoWen OUYANG YiFang ZHANG BangWei Key Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of Education Department oy rnystcs Hunan Normal University Changsha 410081 China College of Mathematics and Physics University of South China Hengyang 421001 China College of Mathematics and Computer Science Hunan Normal University Changsha 410081 China Computer and Information Engineering School Central South University of Forestry and Technology Changsha 410004 China Department of Physics Guangxi University Nanning 530004 China Department of Applied Physics Hunan University Changsha 410082 China International Centre for Materials Physics Chinese Academy of Sciences Shenyang 110015 China

Based on the ideal solution approximation, the model for size-dependent melting temperature of pure metal nanoparticles is extended to binary alloy systems. The developed model, free of any adjustable parameter, demonstrates that the melting temperature is related to the size and composition of alloy nanoparticles. The melting temperature of CuNi, PbBi and Snln binary alloy nanocrystals is found to be consistent with the experiments and molecular dynamics simulations. The research reveals that alloy nanocrystals have similar melting nature as pure metal.

关键词： nano binary alloy melting temperature size-dependent

Tackling application limitations of high-safetyγ-butyrolactone electrolytes:Exploring mechanisms and proposing solutions

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Journal of Energy Chemistry 2024年第6期93卷 193-201,I0005页

作者： haojun Wu Zhangyating Xie Guanjie Li Lei Zheng Zhiwei Zhao Jiarong He Yanbin Shen Jiahao Hu Zhangquan peng Guiming Zhong Lidan Xing Weishan Li School of Chemistry South China Normal UniversityGuangzhou 510006GuangdongChina National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs Engineering Research Center of MTEES(Ministry of Education)Research Center of BMET(Guangdong Province)and Key Lab.of ETESPG(GHEI)South China Normal UniversityGuangzhou 510006GuangdongChina Laboratory of Advanced Spectroelectrochemistry and Li-ion Batteries Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina i-Lab CAS Center for Excellence in NanoscienceSuzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123JiangsuChina School of Chemical Engineering Faculty of SciencesEngineering and TechnologyThe University of AdelaideSA 5005Australia

Developing wide-temperature and high-safety lithium-ion batteries(LIBs)presents significant challenges attributed to the absence of suitable solvents possessing broad liquid range and non-flammability properties.γ-Butyrolactone(GBL)has emerged as a promising solvent;however,its incompatibility with graphite anode has hindered its *** limitation necessitates a comprehensive investigation into the underlying mechanisms and potential *** this study,we achieve a molecular-level understanding of the perplexing interphase formation process by employing in-situ spectroelectrochemical techniques and density function *** findings reveal that,even at high salt concentrations,GBL consistently occupies the primary Li^(+)solvation sheath,leading to extensive GBL decomposition and the formation of a high-impedance and inorganic-poor solid-electrolyte interphase(SEI)*** to manipulating solvation structures,our research demonstrates that the utilization of filmforming additives with higher reduction potential facilitates the pre-establishment of a robust SEI film on the graphite *** approach effectively inhibits GBL decomposition and significantly enhances the battery's *** study provides the first reported intrinsic understanding of the unique GBLgraphite incompatibility and offers valuable insights for the development of wide-temperature and high-safety LIBs.

关键词： γ-Butyrolactone/Graphite incompatibility Unique solvation structure SEI film Lithium-ion batteries

阿卡波糖联合二甲双胍对2型糖尿病患者相关指标的影响

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中国药房 2017年第27期28卷 3774-3777页

作者：庞宁陈科彭皓均郑碧波广州市东升医院西医内科广州510120 广州市东升医院检验科广州510120 广州中医药大学第一附属医院脑病科广州510405 广州市东升医院治疗科广州510120

目的:探讨阿卡波糖联合二甲双胍对2型糖尿病患者相关指标的影响。方法:100例2型糖尿病患者随机分为对照组(50例)和观察组(50例)。对照组患者给予阿卡波糖片50 mg,口服,每日3次;观察组患者在对照组治疗的基础上给予盐酸二甲双胍片0.5 g,... 详细信息

目的:探讨阿卡波糖联合二甲双胍对2型糖尿病患者相关指标的影响。方法:100例2型糖尿病患者随机分为对照组(50例)和观察组(50例)。对照组患者给予阿卡波糖片50 mg,口服,每日3次;观察组患者在对照组治疗的基础上给予盐酸二甲双胍片0.5 g,口服,每日3次。两组疗程均为12周。观察两组患者治疗前后空腹血糖(FPG)、空腹血浆胰岛素(FINS)、糖化血红蛋白(Hb A1c)、餐后2 h血糖(2 h PG)、餐后2 h胰岛素(2 h FINS)、胰岛素抵抗指数(HOMA-IR)、CD4^+T细胞中各Th细胞亚群比例、白细胞介素22(IL-22)、IL-17A、干扰素-γ(IFN-γ)水平及IL-22 m RNA、IL-17A m RNA、IFN-γm RNA表达水平,并记录不良反应发生情况。结果:治疗后,两组患者FPG、FINS、Hb A1c、2 h PG、2 h FINS、HOMA-IR、CD4^+T细胞中各Th细胞亚群比例、IL-22、IL-17A、IFN-γ水平及IL-22 m RNA、IL-17A m RNA、IFN-γm RNA表达水平均显著低于同组治疗前,差异均有统计学意义(P0.05)外,其他指标均为观察组显著低于对照组,差异均有统计学意义(P0.05)。结论:阿卡波糖联合二甲双胍可有效控制2型糖尿病患者的血糖,改善胰岛抵抗状态,平衡Th细胞亚群,降低炎性细胞因子水平,且未增加不良反应的发生。

关键词：阿卡波糖二甲双胍 2型糖尿病 CD4^+T细胞亚群炎性细胞因子胰岛素抵抗血糖

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暑湿辨治发热、消渴(原发性垂体炎)1例

中国中医药现代远程教育 2015年第5期13卷 131-132页

作者：李玮彭皓均广州中医药大学第一临床医学院广州510405 广州中医药大学第一附属医院脑病科广州510405

原发性垂体炎是指非继发于其他疾病而发生的垂体炎性病变,临床发病较罕见。本文报道以温病暑湿辨病辩证治疗为主,以发热、乏力、多饮、多尿为首发症状的原发性垂体炎1例,以暑伤津气,暑湿内蕴,余邪留滞,气机不舒辨证遣方用药,患者发热、... 详细信息

原发性垂体炎是指非继发于其他疾病而发生的垂体炎性病变,临床发病较罕见。本文报道以温病暑湿辨病辩证治疗为主,以发热、乏力、多饮、多尿为首发症状的原发性垂体炎1例,以暑伤津气,暑湿内蕴,余邪留滞,气机不舒辨证遣方用药,患者发热、乏力等不适症状明显改善,多饮、多尿等症状在明确诊断原发性垂体炎后加用西药治疗明显改善。中医药辨病辨证思路对不明原因长期发热的治疗有突出优势。

关键词：原发性垂体炎暑湿消渴

医用Ti基合金形成焓的改进Miedema模型计算

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稀有金属材料与工程 2009年第7期38卷 1198-1202页

作者：彭好军廖树帜陈佳王小丽张淳谢浩文欧阳义芳张邦维湖南师范大学量子结构与调控教育部重点实验室湖南长沙410081 湖南师范大学湖南长沙410081 广西大学广西南宁530004 湖南大学湖南长沙410081 中国科学院国际材料物理中心辽宁沈阳110015

采用改进Miedema模型计算医用Ti基合金的形成焓。结果表明,在医用Ti基合金中掺入非过渡金属Al或Sn能显著降低医用Ti合金的形成焓。对于Ti-Zr系合金形成焓,弹性形成焓的贡献较化学形成焓贡献大。

关键词：医用Ti基合金形成焓改进Miedema模型

喷施EDTA-Mn对‘马瑟兰’葡萄光合特性及品质的影响

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中外葡萄与葡萄酒 2024年第1期 42-47页

作者：顾梅花解昊郡蒋鹏孙权宁夏大学农学院宁夏银川750021

以4年生‘马瑟兰’葡萄为研究对象,在常规施肥的基础上,叶面喷施螯合态锰(EDTA-Mn),采用单因素多水平随机区组试验设计,设置4个喷施水平:依次为2.25、4.50、6.75、9.00 kg·hm^(-2)EDTA-Mn,分别用H1、H2、H3、H4表示,以喷施清水为对照(C... 详细信息

以4年生‘马瑟兰’葡萄为研究对象,在常规施肥的基础上,叶面喷施螯合态锰(EDTA-Mn),采用单因素多水平随机区组试验设计,设置4个喷施水平:依次为2.25、4.50、6.75、9.00 kg·hm^(-2)EDTA-Mn,分别用H1、H2、H3、H4表示,以喷施清水为对照(CK),探讨叶面喷施不同浓度EDTA-Mn对贺兰山东麓酿酒葡萄光合特性、产量与品质的影响。结果表明,喷施EDTA-Mn可以提高‘马瑟兰’葡萄叶片的叶绿素含量,H3处理最高,较CK显著提高16.71%;H2处理叶片的气孔导度和蒸腾速率最高,较CK分别提高30.36%和30.28%;所有处理的胞间CO_(2)浓度显著低于CK;H2处理的穗长、横径、百粒质量、单宁和花色苷含量均最高,较CK分别提高14.35%、11.79%、8.25%、4.73%和10.31%;H3处理的总酚含量最高,较CK显著提高42.14%;产量由高到低依次为H2>H3>H1>CK>H4,其中H2处理较CK显著提高24.11%。综合分析,在贺兰山东麓产区通过叶面喷施EDTA-Mn能有效促进‘马瑟兰’葡萄叶片的光合特性,提高葡萄的产量,改善浆果品质,其中最佳叶面喷施量为4.5 kg·hm^(-2)。

关键词：贺兰山东麓 ‘马瑟兰’葡萄螯合锰产量品质

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纳米钛合金成分聚集的改进Miedema模型

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稀有金属材料与工程 2010年第7期39卷 1175-1179页

作者：谢斌廖树帜陈佳吕云宾彭好军王小丽张淳谢浩文欧阳义芳张邦维湖南师范大学湖南长沙410081 广西大学广西南宁530004 湖南大学湖南长沙410082 中国科学院国际材料物理中心辽宁沈阳110015

考虑表面效应,利用改进Miedema模型推导得到纳米二元合金形成焓的计算公式,并将它用于二元Ti-M(M=Si,Fe,Zn,Tc,Cd,Re,Os,Pb,Bi)纳米合金形成焓的研究。结果表明,对于同一成分的纳米合金来说,随着晶粒粒径的减小,形成焓增加,合金稳定性... 详细信息

考虑表面效应,利用改进Miedema模型推导得到纳米二元合金形成焓的计算公式,并将它用于二元Ti-M(M=Si,Fe,Zn,Tc,Cd,Re,Os,Pb,Bi)纳米合金形成焓的研究。结果表明,对于同一成分的纳米合金来说,随着晶粒粒径的减小,形成焓增加,合金稳定性降低。晶粒尺寸在10nm以下时,成分聚集现象十分明显,合金的聚集方向和聚集程度由聚集驱动能控制。

关键词：纳米二元钛合金改进Miedema模型形成焓成分聚集