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Particuology 2024年第8期91卷 351-377页

作者： Hao Jing xinguang cui School of Aerospace Engineering Huazhong University of Science and TechnologyWuhan430074China

Accurate assessment and prediction of airflow dynamics and particle deposition in the human respiratory tract are essential for human health,involving inhaled drugs for treating various diseases and toxic particles that can cause *** intricate process involves complex multiphase flow with distinct respiratory *** fluid dynamics(CFD)acts as a bridge,overcoming the limitations of in vivo and in vitro experiments and providing a means to fully comprehend and reveal the fundamental mechanisms of respiratory flow and particle behavior on a microscopic *** paper provides a comprehensive overview and concise summary of recent advancements in the numerical simulation of airflow and particle deposition in the human respiratory ***,it summarizes the transition of respiratory tract models from segmented models to emerging physiological characteristic models and whole-lung airway models,and the latest developments on the effects of key factors such as geometric variations,respiratory patterns,and particle physical/chemical properties on respiratory flow and particle deposition.A notable focus of this review is on emerging physiological characteristics models and their associated complex airflow and particle dynamics inside *** paper concludes with recommendations for future research to further advance the development of this field.

关键词： Airflow dynamics Particle deposition Human respiratory system Numerical modeling

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

不同环境温度对人体呼吸道内颗粒物沉积规律的影响

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医用生物力学 2023年第4期38卷 670-676页

作者：冯亚宁崔新光华中科技大学航空航天学院武汉430074

目的探究环境温度对人体呼吸道内气体流动和颗粒物沉积规律的影响。方法采用计算流体动力学(computational fluid dynamics,CFD)方法模拟具有黏液层的人体呼吸道内的气固两相流;考虑6种不同环境温度(-25、-15、0、15、26.7、45℃)和8种... 详细信息

目的探究环境温度对人体呼吸道内气体流动和颗粒物沉积规律的影响。方法采用计算流体动力学(computational fluid dynamics,CFD)方法模拟具有黏液层的人体呼吸道内的气固两相流;考虑6种不同环境温度(-25、-15、0、15、26.7、45℃)和8种不同粒径(1~8μm)的颗粒物。结果气流流速与6种温度下平均气流流速的差异可达39.42%;气流湍流动能与6种温度下湍流动能平均值的差异可达到11.59%;气流温度变化与6种温度下气流温度变化平均值的差异可高达82.4%。颗粒总沉积率与6种温度下总沉积率平均值的差异可达14.72%;颗粒局部沉积率与6种温度下局部沉积率平均值的差异可达到37.08%。结论环境温度差异会影响人体呼吸道内部的气流流场性质,进而会影响颗粒物在呼吸道内的沉积规律。因此,获得精准的颗粒物在人体呼吸道内的运动沉积规律,有必要考虑环境温度的影响。

关键词：环境温度人体呼吸道气体流动颗粒物沉积

同方期刊数据库博看期刊评论

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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

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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

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

Hot Deformation Behavior and Workability of a New Ni–W–Cr Superalloy for Molten Salt Reactors

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Acta Metallurgica Sinica(English Letters) 2024年第8期37卷 1453-1466页

作者： Long Liu Zijian Zhou Jie Yu xinguang Wang Chuanyong cui Rui Zhang Yizhou Zhou Xiaofeng Sun Shi‑Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Fushun Special Steel Co. LtdFushun 113000China

The hot deformation behavior of a newly developed Ni–W–Cr superalloy for use in 800℃molten salt reactors(MSRs)was looked into by isothermal compression tests in the temperature range of 1050–1200℃with a strain rate of 0.001–1 s^(−1)under a true strain of *** Arrhenius-type model for the Ni–W–Cr superalloy was constructed by fitting the corrected flow stress *** this model,the effect of dispersion of solid solution elements during thermal deformation on microstructure evolution was considered,as well as the effects of friction and adiabatic heating on the temperature and strain rate-dependent variation of flow *** hot deformation activation energy of the Ni–W–Cr superalloy was 323 kJ/mol,which was less than that of the Hastelloy N alloy(currently used in MSRs).According to the rectified flow stress data,processing maps were *** conjunction with the corresponding deformation microstructures,the flow instability domains of the Ni–W–Cr superalloy were determined to be 1050–1160℃/0.03–1 s^(−1)and 1170–1200℃/0.001–0.09 s^(−1).In these deformation conditions,a locally inhomogeneous microstructure was caused by flow-i.e.,incomplete dynamic recrystallization and hot working parameters should avoid sliding into these *** ideal processing hot deformation domain for the Ni–W–Cr superalloy was determined to be 1170–1200℃/0.6–1 s^(−1).

关键词： Ni-W-Cr Superalloy Hot deformation behavior Constitutive equation Processing map Microstructure evolution

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

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