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Numerical Investigation of Flow and Heat Transfer in Vane Impingement/Effusion Cooling with Various Rib/Dimple Structure

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Journal of Thermal Science 2023年第4期32卷 1357-1377页

作者： wang mingrui ZHU Huiren LIU Cunliang wang Rui WU Zhuang YAO Chunyi School of Power and Energy Northwestern Polytechnical UniversityXi’an710129China

By investigating heat transfer and flow structures of dimples,orthogonal ribs,and V-shaped ribs in the impingement/effusion cooling,the article is dedicated to selecting a best-performing internal cooling structure for a turbine *** overall cooling effectiveness and coolant consumption are adopted to evaluate the cooling *** analyze the influence of structural modification,the flow field is investigated on chordwise/spanwise sections and the target *** blockage effect on crossflow can protect jet flow,resulting in higher heat transfer performance of the target *** own a stronger blockage effect than *** with the blockage effect,the influence of the rib shape is *** installing dimples between ribs,heat transfer is augmented *** introduction of ribs/dimples leads to higher discharge coefficients of jet nozzles but lower discharge coefficients of film ***,the film cooling ***,the installation of the ribs and dimples decreases total coolant *** effect of ribs/dimples on heat transfer and effusion condition of internal and external cooling is *** best-performing cooling structure is the target surface with dimples and orthogonal ribs,which decreases the wall temperature and coolant consumption by 14.57-28.03 K and 1.19%-1.81%*** article concludes the flow mechanism for dimples and influence factors on the cooling performance,which may serve as guidance for the turbine vane design.

关键词： conjugate heat transfer impingement cooling dimple V-shape rib discharge coefficient

Triple the steady-state reaction rate by decorating the In_(2)O_(3)surface with SiO_(x)for CO_(2)hydrogenation

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Journal of Energy Chemistry 2024年第8期95卷 96-105,I0003页

作者： Hao wang Chun Yang Xiaoyan Yu mingrui wang Runze Yang Xiaowa Nie Ben Hang Yin Alex C.K.Yip Chunshan Song Guanghui Zhang Xinwen Guo State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsPSU-DUT Joint Center for Energy ResearchSchool of Chemical EngineeringDalian University of TechnologyDalian 116024LiaoningChina Department of Chemistry the Chinese University of Hong KongHong Kong 999077China Paihau-Robinson Research Institute the MacDiarmid Institute for Advanced Materials and NanotechnologyVictoria University of WellingtonWellington 6012New Zealand Department of Chemical and Process Engineering The University of CanterburyChristchurch 8041New Zealand

Indium oxide(In_(2)O_(3)),as a promising candidate for CO_(2)hydrogenation to C_(1) products,often suffers from sintering and activity decline,closely related to the undesirable structural evolution under reaction *** on the comprehension of the dynamic evolution,this study presents an efficient strategy to alleviate the agglomeration of In_(2)O_(3)nanoparticles by the surface decoration with highly dispersed silica species(SiO_(x)).Various structural characterizations combined with density functional theory calculations demonstrated that the sintering resulted from the over-reduction,while the enhanced stability originated from the anchoring effect of highly stable In-OSi bonds,which hinders the substantial formation of metallic In(In^(0))and the subsequent agglomeration.0.6Si/In_(2)O_(3)exhibited CO_(2)conversion rate of10.0 mmol g^(-1)h^(-1)at steady state vs.3.5 mmol g^(-1)h^(-1)on In_(2)O_(3)in CO_(2)*** steady-state activity was also achieved on Pd-modified *** to the traditional Pd/In_(2)O_(3)catalyst,the methanol production rate of Pd catalyst supported on 0.6Si/In_(2)O_(3)was enhanced by 23%,showing the potential of In_(2)O_(3)modified by SiO_(x)in serving as a platform *** work provides a promising method to design new In_(2)O_(3)-based catalysts with improved activity and stability in CO_(2)hydrogenation.

关键词： CO_(2)hydrogenation In_(2)O_(3)sintering Dynamic structural evolution Surface SiO_(x)modification DFT simulations

Propane dehydro-aromatization reaction over PtFe@S-1 coupling with Zn/ZSM-5 tandem catalysts: the role of Zn species

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Frontiers of Chemical Science and Engineering 2024年第8期18卷 25-35页

作者： Kai Bian Sirui Liu Huahua Fan Guanghui Zhang Xinwei Zhang Gideon Abaidoo Ocran mingrui wang Quanjie Liu Xiaowa Nie Shuandi Hou Xinwen Guo Sinopec Dalian Research Institute of Petroleum and Petrochemicals Dalian 116045China State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsPSU-DUT Joint Center for Energy ResearchSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China

Unraveling the structure-activity relationship and improving the catalytic performance is paramount in propane dehydro-aromatization reactions. Herein, a tandem catalyst with high propane dehydro-aromatization reaction performance was prepared via coupling the PtFe@S-1 with Zn/ZSM-5 zeolites (PtFe@S-1&1.0Zn/ZSM-5), which exhibits high dehydrogenation activity, aromatics selectivity (~60% at ~78% propane conversion), and stability. The addition of zinc inhibits the cleavage of C_(6)^(=) intermediates on ZSM-5 and promotes the aromatization pathway by weakening zeolite acid strength, significantly improving the selectivity to aromatics. This understanding of the structure-activity relationship in propane dehydro-aromatization reaction helps develop future high-performance catalysts.

关键词： propane dehydro-aromatization reaction tandem catalysts the structure-activity relationship of zinc species

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论基尼亚尔作品中塞壬的母亲形象

当代外国文学 2019年第4期40卷 68-74页

作者：王明睿南京师范大学外国语学院

帕斯卡・基尼亚尔是当代法国著名作家,其作品以形式碎片化、内容杂糅、思想深邃为特征,并因时常书写音乐主题而独树一帜。本文将以基尼亚尔作品对塞壬神话的解读与重构为主线,分析作者如何塑造出了塞壬的母亲形象,以及作为“子”的文明... 详细信息

帕斯卡・基尼亚尔是当代法国著名作家,其作品以形式碎片化、内容杂糅、思想深邃为特征,并因时常书写音乐主题而独树一帜。本文将以基尼亚尔作品对塞壬神话的解读与重构为主线,分析作者如何塑造出了塞壬的母亲形象,以及作为“子”的文明社会中的人类如何脱离了“母亲”,以此揭示作者如何经由书写该神话人物的形象来对文明进行批判与反思。

关键词：帕斯卡•基尼亚尔神话原型塞壬母亲本源

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法国自我书写的历史演变与当代走向

国外文学 2024年第2期 32-41页

作者：王明睿南京师范大学外国语学院

2022年,诺贝尔文学奖和法国龚古尔文学奖均颁发给了从事自我书写的法国女作家,使得该文学样式一时间备受关注。然而,法国自我书写的今日辉煌远非一蹴而就,它的演变与走向不仅意味着一种文学式样的发展,也折射出了人们在诉求与思想上的... 详细信息

2022年,诺贝尔文学奖和法国龚古尔文学奖均颁发给了从事自我书写的法国女作家,使得该文学样式一时间备受关注。然而,法国自我书写的今日辉煌远非一蹴而就,它的演变与走向不仅意味着一种文学式样的发展,也折射出了人们在诉求与思想上的变迁。法国自我书写在文艺复兴时期人文主义思想的影响下诞生,在广泛书写大写之他的环境中尝试突破,对小写之我进行刻画,并于19世纪迎来黄金时期,却因20世纪两次世界大战对思想的巨大冲击而丧失了自我的主体性,后以虚实结合的新姿态重构自我。而今天,法国自我书写已经走出作者对个体自我建构的局限性,在共同记忆的基础上充当集体的代言人,用文学的方式建立一种社会档案,将个体的故事书写成集体的历史。

关键词：法国自我书写自传自撰

Multi-focus light-field microscopy for high-speed large-volume imaging

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PhotoniX 2022年第1期3卷 3-22页

作者： Yi Zhang Yuling wang mingrui wang Yuduo Guo Xinyang Li Yifan Chen Zhi Lu Jiamin Wu Xiangyang Ji Qionghai Dai Department of Automation Beijing National Research Center for Information Science and TechnologyTsinghua UniversityBeijing 100084China Institute for Brain and Cognitive Sciences Tsinghua UniversityBeijing 100084China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China Beijing Key Laboratory of Multi-dimension&Multi-scale Computational Photography(MMCP) Tsinghua UniversityBeijing 100084China IDG/McGovern Institute for Brain Research Tsinghua UniversityBeijingChina Hangzhou Zhuoxi Institute of Brain and Intelligence Hangzhou 311100China

High-speed visualization of three-dimensional(3D)processes across a large field of view with cellular resolution is essential for understanding living ***-field microscopy(LFM)has emerged as a powerful tool for fast volumetric ***,one inherent limitation of LFM is that the achievable lateral resolution degrades rapidly with the increase of the distance from the focal plane,which hinders the applications in observing thick ***,we propose Spherical-Aberration-assisted scanning LFM(SAsLFM),a hardware-modification-free method that modulates the phase-space point-spread-functions(PSFs)to extend the effective high-resolution range along the z-axis by~3 *** transferring the foci to different depths,we take full advantage of the redundant light-field data to preserve finer details over an extended depth range and reduce artifacts near the original focal *** on a USAF-resolution chart and zebrafish vasculatures were conducted to verify the effectiveness of the *** further investigated the capability of SAsLFM in dynamic samples by imaging large-scale calcium transients in the mouse brain,track-ing freely-moving jellyfish,and recording the development of Drosophila *** addition,combined with deep-learning approaches,we accelerated the three-dimen-sional reconstruction of SAsLFM by three orders of *** method is compat-ible with various phase-space imaging techniques without increasing system complex-ity and can facilitate high-speed large-scale volumetric imaging in thick samples.

关键词： field light thick

Experimental Study on Bolt Tightening of Torsional Vibration Damper

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Experimental Study on Bolt Tightening of Torsional Vibration...

Targeting cAMP in D1-MSNs in the nucleus accumbens, a new rapid antidepressant strategy

2018中国汽车工程学会年会

作者： DONG Fan wang mingrui SHENG Xingtao SUN Qing Dongfeng Motor Corporation Technical Center

In engines,it is inevitable that the torsional vibration is produced by the fluctuation of the engine ***,the torsional vibration damper is necessary to establish preventive measures to diminish the torsional *** this paper,an experimental study was carried out in a gasoline engine to analyze the bolt tightening of torsinal vibration *** influence of the friction coefficient of the bolt of the torsional vibration damper,the material properties of the torsional vibration damper and the axial force calibration were *** results show that the changesinthe friction coefficientof the bolt and the material of the torsional vibration damper have great impacts on the bolt *** is effective to improve the bolt tightening state by checking the axial force and establishing suitable tightening parameters.

关键词： torsional vibration damper friction coefficient bolt tightening

来源： cnki会议评论

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Acta Pharmaceutica Sinica B 2024年第2期14卷 667-681页

作者： Yue Zhang Jingwen Gao Na Li Peng Xu Shimeng Qu Jinqian Cheng mingrui wang Xueru Li Yaheng Song Fan Xiao Xinyu Yang Jihong Liu Hao Hong Ronghao Mu Xiaotian Li Youmei wang Hui Xu Yuan Xie Tianming Gao Guangji wang Jiye Aa Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics State Key Laboratory of Natural MedicinesResearch Unit of PK-PD Based Bioactive Components and Pharmacodynamic Target Discovery of Natural Medicine of Chinese Academy of Medical SciencesChina Pharmaceutical UniversityNanjing 210009China Key Laboratory of Drug Monitoring and Control Drug Intelligence and Forensic CenterMinistry of Public SecurityBeijing 100193China School of Pharmacy China Pharmaceutical UniversityNanjing 211198China School of Foreign Languages China Pharmaceutical UniversityNanjing 211198China Department of Neurobiology School of Basic Medical SciencesSouthern Medical UniversityGuangzhou 510515China Department of Pharmacology China Pharmaceutical UniversityNanjing 211198China School of Pharmaceutical Sciences Zhengzhou UniversityZhengzhou 450001China

Studies have suggested that the nucleus accumbens(NAc)is implicated in the pathophysiology of major depression;however,the regulatory strategy that targets the NAc to achieve an exclusive and outstanding anti-depression benefit has not been ***,we identified a specific reduction of cyclic adenosine monophosphate(cAMP)in the subset of dopamine D1 receptor medium spiny neurons(D1-MSNs)in the NAc that promoted stress susceptibility,while the stimulation of cAMP production in NAc D1-MSNs efficiently rescued depression-like *** treatment enhanced cAMP both in D1-MSNs and dopamine D2 receptor medium spiny neurons(D2-MSNs)of depressed mice,however,the rapid antidepressant effect of ketamine solely depended on elevating cAMP in NAc *** discovered that a higher dose of crocin markedly increased cAMP in the NAc and consistently relieved depression 24 h after oral administration,but not a lower *** fast onset property of crocin was verified through multicenter ***,crocin specifically targeted at D1-MSN cAMP signaling in the NAc to relieve depression and had no effect on *** findings characterize a new strategy to achieve an exclusive and outstanding anti-depression benefit by elevating cAMP in D1-MSNs in the NAc,and provide a potential rapid antidepressant drug candidate,crocin.

关键词： CAMP Nucleus accumbens Depression D1-MSN D2-MSN

Correction:Multi-focus light-field microscopy for high-speed large-volume imaging

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PhotoniX 2022年第1期3卷 1-2页

In the original publication of this article[1],there is a problem with the display of the Fig.3 due to the incompatibility of image *** needs to be updated with the correct *** original article[1]was updated.

关键词： image field light