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Analysis and optimization of stamping and forming process of bearing outer ring

作者： MA YONG chen yulu IMI School of Finance Renmin University of China IMI Academic Committee

This study seeks to determine an effective boundary between government and market in light of modern financial theories. According to the findings of this paper, the relationship between government and market must be conceived of asunder the "continuous spectrum of change" resulting from economic development. In practice, an effective frontier between government and market not only transforms continuously with the process of economic development but also demonstrates significant contrasts internationally according to the different national characteristics existing in each country. Determining a frontier between government and market requires that the relationship between the two be embedded into a broader set of institutional environmental constraints that incorporate consideration of the dynamic processes and mechanisms of economic development. The key issue is that government and market act with regard to the principle of comparative advantage as they play their respective roles.

关键词： Government-Market Relationship and Development of Financial System National Characteristics

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Theoretical & Applied Mechanics Letters 2024年第3期14卷 227-237页

作者： Shichao Zhu yulu Ding Bing Long Hun Guo Linhan Ouyang Wengang chen Zhengyi Jiang College of Aeronautics and Mechanical Engineering Changzhou Institute of TechnologyChangzhou 213002China College of Economics and Management Nanjing University of Aeronautics and AstronauticsNanjing 211106China eering University of WollongongWollongong NSW 2522Australia

To address the common issues of wrinkling,tearing,and uneven wall thickness in the actual sheet metal stamp-ing process of the outer ring of needle roller bearings,this study analyzes critical technical indicators such asforming limits,thickness distribution,and principal strains in the forming process in ***-dimensionalmodels of the concave and convex dies were *** effects of different process parameters,includingstamping speed,edge pressure,sheet metal thickness,and friction coefficient,on the quality of the forming partswere investigated by varying these ***,the orthogonal experimental method was used todetermine an optimal experimental group from multiple sets of *** was found that under the processparameters of a stamping speed of 3000 mm/s,edge pressure of 2000 N,sheet metal thickness of 0.9 mm,andfriction coefficient of 0.125,the forming quality of the outer ring of the bearing is ideal.

关键词： Plate stamping Bearing outer ring Mold design Optimization

Investigating long-term trends of climate change and their spatial variations caused by regional and local environments through data mining

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Journal of Geographical Sciences 2018年第6期28卷 802-818页

作者： XIE Yichun ZHANG Yang LAN Hai MAO Lishen ZENG Shi chen yulu Institute for Geospatial Research and Education Eastern Michigan UniversityYpsilantiMichigan 48197 USA Guangzhou Institute of Geography Guangzhou 510070China Department of Computer Science Indiana UniversityBloomingtonIndiana 47405USA Department of Computer Science New York UniversityNY 10012USA Center for Advanced Spatial Analysis University College LondonLondon WCIE 6BTU

Climate change is a global phenomenon but is modified by regional and local environmental ***,climate change exhibits remarkable cyclical oscillations and disturbances,which often mask and distort the long-term trends of climate change we would like to *** by recent advancements in data mining,we experimented with empirical mode decomposition(EMD)technique to extract long-term change trends from climate *** applied GIS elevation model to construct 3 D EMD trend surface to visualize spatial variations of climate change over regions and *** then computed various time-series similarity measures and plot them to examine spatial patterns across meteorological *** conducted a case study in Inner Mongolia based on daily records of precipitation and temperature at 45 meteorological stations from 1959 to *** EMD curves effectively illustrated the long-term trends of climate *** EMD 3 D surfaces revealed regional variations of climate change,while the EMD similarity plots disclosed cross-station *** brief,the change trends of temperature were significantly different from those of *** regional patterns and local disturbances of the changes in both temperature and precipitation were *** trends of change were modified by regional and local topographies and land covers.

关键词： climate change empirical mode decomposition Inner Mongolia similarity plot trend surface

Construction of Dynamic Alloy Interfaces for Uniform Li Deposition in Li-Metal Batteries

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Energy & Environmental Materials 2024年第3期7卷 64-71页

作者： Qingwen Li yulu Liu Ziheng Zhang Jinjie chen Zelong Yang Qibo Deng Alexander V.Mumyatov Pavel A.Troshin Guang He Ning Hu Tianjin Key Laboratory of Advanced Functional Porous Materials Institute for New Energy Materials and Low-Carbon TechnologiesSchool of Materials Science and EngineeringTianjin University of TechnologyTianjin 300384China Tianneng Co.Ltd Huzhou 313100China Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehiclesand School of Mechanical EngineeringHebei University of TechnologyTianjin 300401China Federal Research Center for Problems of Chemical Physics and Medicinal Chemistry Academician Semenov ave.1Chernogolovka Moscow Region 142432Russia Zhengzhou Research Institute of HIT 26 Longyuan East 7thJinshui DistrictZhengzhou 450000Henan Province China Harbin Institute of Technology 92 West Dazhi StreetNan Gang DistrictHarbin 150001China

It is well accepted that a lithiophilic interface can effectively regulate Li deposition behaviors,but the influence of the lithiophilic interface is gradually diminished upon continuous Li deposition that completely isolates Li from the lithiophilic ***,we perform in-depth studies on the creation of dynamic alloy interfaces upon Li deposition,arising from the exceptionally high diffusion coefficient of Hg in the amalgam solid *** a comparison,other metals such as Au,Ag,and Zn have typical diffusion coefficients of 10-20 orders of magnitude lower than that of Hg in the similar solid solution *** difference induces compact Li deposition pattern with an amalgam substrate even with a high areal capacity of 55 mAh cm^(-2).This finding provides new insight into the rational design of Li anode substrate for the stable cycling of Li metal batteries.

关键词： diffusion coefficient dynamic alloy interfaces Li dendrites Li solid solution uniform Li deposition

Enhancing the crystallinity and stability of perovskite solar cells with 4-tert-butylpyridine induction for efficiency exceeding 24%

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Journal of Energy Chemistry 2024年第6期93卷 1-7,I0001页

作者： You Liu Lishuang Zheng Kuanxiang Zhang Kun Xu Weicheng Xie Jue Zhang yulu Tian Tianyuan Liu Hanzhong Xu Ruoming Ma Wei Huang Jiahui chen Jusheng Bao chen chen Yongsheng Zhou Xuchun Wang Junming chen Jungan Wang College of Chemistry and Materials Engineering Anhui Science and Technology UniversityBengbu 233000AnhuiChina Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center Chuzhou 233100AnhuiChina Triumph Photovoltaic Materials Co.Ltd BengbuAnhuiChina National Laboratory of Solid State Microstructures School of PhysicsNanjing UniversityNanjing 210009JiangsuChina JinkoSolar Holding Co.Ltd HainingZhejiangChina

Perovskite solar cells(PSCs)have emerged as a promising photovoltaic technology because of their high light absorption coefficient,long carrier diffusion distance,and tunable ***,PSCs face challenges such as hysteresis effects and stability *** this study,we introduced a novel approach to improve film crystallization by leveraging 4-tert-butylpyridine(TBP)molecules,thereby enhancing the performance and stability of *** findings demonstrate the effective removal of PbI_(2)from the perovskite surface through strong coordination with TBP ***,by carefully adjusting the concentration of the TBP solution,we achieved enhanced film crystallinity without disrupting the perovskite *** TBP-treated perovskite films exhibit a low defect density,improved crystallinity,and improved carrier *** a result,the PSCs manufactured with TBP treatment achieve power conversion efficiency(PCE)exceeding 24%.Moreover,we obtained the PCE of 21.39%for the 12.25 cm^(2)module.

关键词： 4-tert-butylpyridine Film crystallization Perovskite solar cells Power conversion efficiency Stability improvement

Engineering disease-resistant plants with alternative translation efficiency by switching uORF types through CRISPR

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Science China(Life Sciences) 2024年第8期67卷 1715-1726页

作者： Jingjing Tian Zhijuan Tang Ruixia Niu yulu Zhou Dan Yang Dan chen Ming Luo Rui Mou Meng Yuan Guoyong Xu National Key Laboratory of Crop Genetic Improvement National Centre of Plant Gene Research(Wuhan)Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory of Hybrid Rice Institute for Advanced Studies(IAS)Wuhan UniversityWuhan 430072China Hubei Hongshan Laboratory Wuhan 430070China

Engineering disease-resistant plants can be a powerful solution to the issue of food ***,it requires addressing two fundamental questions:what genes to express and how to control their *** find a solution,we screen CRISPR-edited upstream open reading frame(uORF)variants in rice,aiming to optimize translational control of disease-related *** switching uORF types of the 5′-leader from Arabidopsis TBF1,we modulate the ribosome accessibility to the downstream firefly *** assume that by switching uORF types using CRISPR,we could generate uORF variants with alternative translation efficiency(CRISPR-aTrE-uORF).These variants,capable of boosting translation for resistance-associated genes and dampening it for susceptible ones,can help pinpoint previously unidentified genes with optimal expression *** test the assumption,we screened edited uORF variants and found that enhanced translational suppression of the plastic glutamine synthetase 2 can provide broad-spectrum disease resistance in rice with minimal fitness *** strategy,which involves modifying uORFs from none to some,or from some to none or different ones,demonstrates how translational agriculture can speed up the development of disease-resistant *** is vital for tackling the food security challenges we face due to growing populations and changing climates.

关键词： disease-resistant plants broad-spectrum disease resistance uORF uORF types uORF variants CRISPR

科学认识准确把握中国式现代化的重大理论创新及历史贡献

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南开学报（哲学社会科学版） 2023年第2期 2-12页

作者：陈雨露南开大学南开大学中国式现代化发展研究院天津300071

中国式现代化理论是党的二十大的一个重大理论创新,不仅突破了原有的西方现代化理论,而且构成了科学社会主义的最新重大成果,更是对中国共产党领导中国现代化实践的理论升华。从少数人口的现代化到人口规模巨大的现代化、从两极分化的... 详细信息

中国式现代化理论是党的二十大的一个重大理论创新,不仅突破了原有的西方现代化理论,而且构成了科学社会主义的最新重大成果,更是对中国共产党领导中国现代化实践的理论升华。从少数人口的现代化到人口规模巨大的现代化、从两极分化的现代化到全体人民共同富裕的现代化、从物质主义膨胀的现代化到物质文明与精神文明相协调的现代化、从向自然过度索取的现代化到人与自然和谐共生的现代化、从扩张掠夺的现代化到和平发展的现代化,既彰显着鲜明的中国特色,又展现出人类现代化的崭新图景。事实证明,中国式现代化蕴含着新理论、启发了新范式、开拓了新道路,开创了人类文明新形态,在世界观、价值观、民主观、政党观、发展观、治理观等方面形成了诸多原创性的新观点,具有历史性的重大贡献,并必然对世界整体的现代化进程产生深远影响。

关键词：中国式现代化社会主义现代化人类文明新形态

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工业革命、金融革命与系统性风险治理

金融研究 2021年第1期 1-12页

作者：陈雨露中国人民银行北京100800

本文以历史上三次工业革命为切入点,探讨工业革命、金融革命与系统性风险治理间的关系。在工业革命演进过程中,先进技术创新应用、经济结构转变和社会环境变迁,推动了金融业演进发展和升级;反过来,资本的快速积累和有效融通对科技进步... 详细信息

本文以历史上三次工业革命为切入点,探讨工业革命、金融革命与系统性风险治理间的关系。在工业革命演进过程中,先进技术创新应用、经济结构转变和社会环境变迁,推动了金融业演进发展和升级;反过来,资本的快速积累和有效融通对科技进步转化为工业革命不可或缺,以现代商业银行、现代投资银行和创业投资体系为特征的三次金融革命分别是三次工业革命的重要推动力量。但如果制度规则建设和监管滞后,金融发展失序也会导致系统性风险逐步累积,引发金融危机,反过来催生重大金融体制或监管制度变革。当前第四次工业革命已拉开序幕,金融科技引领的金融业集成创新有望成为第四次金融革命的突出特征。我国是全球金融科技发展领先的国家之一,应统筹发展与安全,在金融科技带动下发挥好银行体系、资本市场、创投体系和金融科技企业服务实体经济创新发展的合力,同时做好风险防范,引导从业机构在服务实体经济和遵从审慎监管的前提下守正创新,防止资本无序扩张,牢牢守住不发生系统性风险的底线。

关键词：工业革命金融创新金融监管

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四十年来中央银行的研究进展及中国的实践

金融研究 2019年第2期 1-19页

作者：陈雨露中国人民银行北京100800

改革开放四十年来,中国金融体系从无到有,发生了翻天覆地的变化,目前已基本建成了与中国特色社会主义市场经济相适应、具有活力和国际竞争力的现代金融体系。这四十年,现代货币经济学和全球中央银行政策实践也发生了深刻变革。作为全球... 详细信息

改革开放四十年来,中国金融体系从无到有,发生了翻天覆地的变化,目前已基本建成了与中国特色社会主义市场经济相适应、具有活力和国际竞争力的现代金融体系。这四十年,现代货币经济学和全球中央银行政策实践也发生了深刻变革。作为全球最大的新兴发展加转轨经济体的中央银行,中国人民银行面临的现实约束条件更加复杂,央行的研究为推动中国金融体系发展和央行科学决策提供了可靠支撑,既与世界同步,也具有自己的鲜明特征。本文以世界经济十年左右的周期波动及与之相伴随的货币经济学理论进展和中央银行政策变迁为主线,总结了四十年来中央银行的研究进展和中国经验,旨在进一步推动中央银行的理论研究,更好地促进金融高质量发展。

关键词：中央银行研究货币理论货币政策中国经验