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Numerical simulation of membrane humidifier with different flow fields for medical application

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Medicine in Novel Technology and Devices 2022年第3期15卷 7-15页

作者： Seyed Ali Atyabi Ebrahim Afshari Wei Song xinguang cui Flemish Institute for Technological Research(VITO) Boeretang 200MolBelgium Department of Mechanical Engineering Faculty of EngineeringUniversity of IsfahanHezar Jerib Ave.Isfahan81746-73441Iran School of Aerospace Engineering Huazhong University of Science and TechnologyWuhanChina

Medical humidifier is one of the vital instruments for a respiratory patient in hospital,which is used to humidify the required oxygen for respiratory *** conventional type of humidifier,bubble humidifier,has some technical problems,including the need to drain condensed water and a lack of accurate control of air or oxygen required by the *** contrast,Membrane humidifier has exciting advantages,including the simplicity of the system,the absence of moving parts,very low noise,and the ability to control temperature and *** this study,three configurations,including parallel,cross,and serpentine of a single module of a membrane humidifier according to the person's weight and breathing rate(the range of 10–28 SLPM)are numerically *** validation of numerical models,a membrane humidifier experimental setup test is *** obtained results indicated that the crossflow configuration for membrane humidifier has a minimum Dew Point Approach Temperature(DPAT)(2

关键词： Membrane humidifier 3D multiphase model Relative humidity Temperature Medical

Swirling flow and capillary diameter effect on the performance of an active dry powder inhalers

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Medicine in Novel Technology and Devices 2023年第2期18卷 215-225页

作者： Mohammad Hasan Taheri Nematollah Askari Yaning Feng Malikeh Nabaei Mohammad S.Islam Ali Farnoud xinguang cui Department of Mechanical Engineering Faculty of Imam KhomeiniBehshahr BranchTechnical and Vocational University(TVU)MazandaranIran School of Aerospace Engineering Huazhong University of Science and TechnologyWuhanChina Faculty of Biomedical Engineering Amirkabir University of Technology(Tehran Polytechnic)TehranIran School of Mechanical and Mechatronic Engineering University of Technology Sydney(UTS)15 BroadwayUltimoNSW2007Australia Computational Health Center Helmholtz MunichMunichGermany

For patients with lung disease,dry powder inhalers(DPI)are profoundly *** current study introduces and develops a series of dry powder inhalers(DPIs).A capsule-based(size 0)active DPI was *** study aims to investigate whether swirling flow and outlet capillary diameter(dc_out)affect the percentage of emitted doses(ED)released from the *** vanes were added to the capillary inlet to produce a swirling *** fluid dynamics(CFD)was applied to simulate the *** results were compared with previous in vitro and numerical studies to validate the *** on the derived results,the small swirl parameter(SP)enhances the secondary flow and recirculation *** increases the central jet flow,which increases the ED value by about 5–20%compared to no-swirl ***,as the airflow rate increases,the recirculation zone enlarges,vorticities become dominant,and asymmetrical flow patterns ***,ED%drops significantly(more than 50%).As d_(c_out)decreases,the vorticities around the outlet capillary become more potent,which is ***,the emptying of the capsule does not happen *** research provides a perspective on the device's design and DPI performance.

关键词： Computational fluid dynamics Dry powder inhalers Swirling flow

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翻译的性别化隐喻:哲学的阐释与解构

外语教学 2007年第2期28卷 79-82页

作者：于德英崔新广南京大学外国语学院鲁东大学汉语言文学院山东烟台264025

西方翻译史中存在大量关于翻译的性别化隐喻,可将其归类为原作与译作的性别化隐喻、作者与译者的性别化隐喻、翻译过程的性别暴力隐喻、源语文化与目的语文化的性别化隐喻。揭开翻译性别化隐喻的面纱,性别歧视、权力暴力的文化价值观念... 详细信息

西方翻译史中存在大量关于翻译的性别化隐喻,可将其归类为原作与译作的性别化隐喻、作者与译者的性别化隐喻、翻译过程的性别暴力隐喻、源语文化与目的语文化的性别化隐喻。揭开翻译性别化隐喻的面纱,性别歧视、权力暴力的文化价值观念昭然若揭。西方哲学对二元对立等级模式和同一性的痴迷是这一现象的文化哲学根源。解构主义思潮的差异观对超越翻译的性别化隐喻作了有益的尝试,但仍然具有一定的乌托邦性。

关键词：翻译的性别化隐喻性别歧视二元对立等级同一性解构乌托邦

基于FLAC 3D的南阳煤矿巷道支护的模拟分析

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机械管理开发 2015年第9期30卷 17-20页

作者：崔新光赵志勇太原理工大学山西太原030024 山西高平科兴南阳煤业有限公司山西高平048400

针对南阳煤矿3202巷道顶板两帮变形、底板底臌较严重的情况,通过FLAC 3D对巷道围岩应力、塑性区、位移量等参数进行模拟,并对比分析支护前后各参数的变化,得出一些有益的结论。

关键词：巷道支护 FLAC 3D 模拟分析

单纯性乳房早发育女童的临床特征及进展为中枢性性早熟的影响因素分析

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保健医学研究与实践 2024年第4期21卷 15-19页

作者：崔海静王霞张蔷刘新光刘朋杜稳重河北省儿童医院儿童保健科(心理行为科) 石家庄050031 河北省儿童医院内分泌遗传代谢科石家庄050031 河北省儿童医院医学检验科石家庄050031 河北省儿童医院医疗保险处石家庄050031 河北省儿童医院质量控制处石家庄050031

目的探讨单纯性乳房早发育(IPT)女童的临床特征及进展为中枢性性早熟(CPP)的影响因素。方法选取2017年1月—2021年12月于我院首诊的85例IPT女童为研究对象,根据1年内是否进展为CPP分为进展组与未进展组,比较2组患儿的临床随访资料。采用... 详细信息

目的探讨单纯性乳房早发育(IPT)女童的临床特征及进展为中枢性性早熟(CPP)的影响因素。方法选取2017年1月—2021年12月于我院首诊的85例IPT女童为研究对象,根据1年内是否进展为CPP分为进展组与未进展组,比较2组患儿的临床随访资料。采用Logistic回归分析IPT患儿进展为CPP的独立影响因素;采用受试者工作特征(ROC)曲线来分析相关指标对患儿进展为CPP的预测价值。结果全部患儿中,1年内共有20例进展为CPP,发生率为23.5%。进展组患儿的发病年龄,身高、体质量及身体质量指数(BMI)的标准差评分,Tanner分期为3期的比例,骨龄与实际年龄的比值,子宫长径,血胰岛素样生长因-1(IGF-1)水平均明显大/高于未进展组(P<0.05);进展组患儿的母亲初潮年龄小于未进展组(P<0.05)。Logistic回归分析结果表明,Tanner分期、血IGF-1水平、子宫长径是IPT患儿进展为CPP的独立影响因素(P<0.05)。ROC曲线分析结果表明,IPT患儿初诊时的IGF-1水平与子宫长径对其1年内进展为CPP具有较高的预测价值,其曲线下面积(AUC)分别为0.789、0.729(P<0.05)。结论IPT女童进展为CPP并不少见,与Tanner分期、血IGF-1水平、子宫长径等有关,临床上应加强对高危患儿的随访干预。

关键词：单纯性乳房早发育中枢性性早熟影响因素胰岛素样生长因-1

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预应力混凝土布筋二次曲线的基础及其应用

工业建筑 2000年第2期30卷 68-69,76页

作者：崔熙光于秀开李振文沈阳建筑工程学院沈阳110015 丹东市建筑工程学校丹东118002 瓦房店市规划设计院 116300

以预应力筋在反弯点处每段曲线端点的斜率相等为基础，提出了实际工程中常用的几种情况的布筋表达式。

关键词：预应力混凝土结构布筋抛物线型反弯点

Effect of thermal exposure on the microstructure and creep properties of a fourth-generation Ni-based single crystal superalloy

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Journal of Materials Science & Technology 2021年第10期69卷 180-187页

作者： Yeshun Huang xinguang Wang Chuanyong cui Zihao Tan Jinguo Li Yanhong Yang Jinlai Liu Yizhou Zhou Xiaofeng Sun Institute of Metal Research Chinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China

The effect of thermal exposure on microstructure and creep properties of a fourth-generation nickelbased single crystal superalloy was *** thermal exposure of samples after the full heat treatment was carried out at 1000℃,1100℃ and 1140℃ for 100 h and 200 *** γ’ coarsening,γ’ rafting and γ channel widening were observed in samples after thermal *** the thermal exposure time was constant,the morphology of γ’ phase in the alloy evolved significantly with increasing aging *** interracial dislocation networks in aged samples after creep ruptured gradually became irregular and sparse with the increase of exposure *** the higher exposure temperature was used,enla rgement of the defect pores was observed in samples,the microcracks were more likely to initiate and propagate at the corner of these *** aging at 1000℃ for 100 h,the creep life at 1140℃/137 MPa was slightly longer than that of heat-treated sample,which could be attributed to the slightly coarsened γ’ phase,homogenization of refractor *** contrast,the creep life of sample exposed at 1140℃ for 100 h was greatly *** decrease of creep life was dominated by the rafting of γ’phase,the irregular interfacial dislocation networks as well as the enlargement of homogenization pores.

关键词： Ni-based single crystal superalloys Thermal exposure Microstructural evolution Creep properties Porosity

On the γ' precipitates of the normal and inverse Portevin-Le Chatelier effect in a wrought Ni-base superalloy

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Journal of Materials Science & Technology 2019年第1期35卷 84-87页

作者： xinguang Wang Guoming Han Chuanyong cui Shuai Guan Jinguo Li Guichen Hou Yizhou Zhou Xiaofeng Sun Institute of Metal Research Chinese Academy of Sciences

The Portevin-Le Chatelier(PLC) effects in a wrought Ni-base superalloy with different γ' precipitates contents have been investigated. Detailed analysis on the serration type of the tensile curves indicates that the γ' precipitates have a decisive influence on the transformation from normal to inverse PLC behavior, which is rarely proposed in other works. It is considered that the γ' precipitates play the same role in PLC effect as temperature and strain rate for the investigated wrought Ni-base superalloy.

关键词： Normal and inverse PLC effec γ’ precipitates Dynamic strain aging Critical strain Wrought Ni-base superalloy

消费升级背景下基于动态评价体系的企业服务质量提升研究

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中国商论 2022年第20期 121-125页

作者：贾新光崔立新北京理工大学经济与管理学院北京100081

SERVQUAL模型和QFD理论相结合可构建动态评价体系,持续提升服务质量,对提高公司核心竞争力,促进消费升级意义重大。本文先用SERVQUAL量表结合B公司实际情况构建调查问卷,对用户的服务需求进行调查,并进行重要度分析,最后进行质量功能QF... 详细信息

SERVQUAL模型和QFD理论相结合可构建动态评价体系,持续提升服务质量,对提高公司核心竞争力,促进消费升级意义重大。本文先用SERVQUAL量表结合B公司实际情况构建调查问卷,对用户的服务需求进行调查,并进行重要度分析,最后进行质量功能QFD展开,从而找到提升服务质量的关键服务措施,为家电行业服务质量提升和可持续发展提供理论依据和应用参考。

关键词：售后服务服务质量 SERVQUAL AHP QFD

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