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基于Taguchi-GA协同的磁性磨料抛光性能预测及制备工艺参数寻优

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湖南大学学报（自然科学版） 2024年第4期51卷 43-53页

作者：王燎原孙玉利张桂冠吴鹏飞易思广孙业斌左敦稳南京航空航天大学机电学院江苏南京210016 山东理工大学先进制造研究院山东淄博255049

通过改变黏结法磁性磨料的制备工艺参数来设计正交试验,制备不同系列规格的磁性磨料,并对其进行形貌和成分检测.以3D打印AlSi10Mg板为加工对象,通过平面磁力研磨试验,揭示磁性磨料制备工艺参数对磁力研磨质量的影响规律.基于回归分析,... 详细信息

通过改变黏结法磁性磨料的制备工艺参数来设计正交试验,制备不同系列规格的磁性磨料,并对其进行形貌和成分检测.以3D打印AlSi10Mg板为加工对象,通过平面磁力研磨试验,揭示磁性磨料制备工艺参数对磁力研磨质量的影响规律.基于回归分析,建立参数与响应之间的回归模型,通过遗传算法实现参数优化.结果表明,在SiC粒径为18~25µm,Fe与SiC的质量比为4.7,环氧树脂与聚酰胺的质量比为2,固化温度为100℃的条件下,材料去除率为1.7 mg/min,表面粗糙度由原始的3.90µm降低至0.27µm,降低率为93.1%.

关键词：优化遗传算法磁性磨料磁力研磨抛光性能

A Method of Obtaining Deformation Information by Tracing Deformation from Sections for 3D FE Simulation

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Journal of Materials Science & Technology 2003年第z1期19卷 65-68页

作者： Mei ZHAN He YANG yuli LIU College of Materials Science and Engineering Northwestern Polytechnical University Xi′an 710072 China College of Materials Science and Engineering Northwestern Polytechnical University Xi′an 710072 China College of Materials Science and Engineering Northwestern Polytechnical University Xi′an 710072 China

With the development of computer technology and finite element method, the priority research area of plasticforming has focused on 3D FE simulation of forming processes for components with complicated geometrical *** processes have complex deforming mechanism, and different sections have different deforming ***, for making a simple, convenient, and practical analysis of its deforming law, how to obtain deformationinformation of key sections from the results of 3D FE simulation has become one of problems urgently to be ***, a method of obtaining deformation information by tracing deformation from sections for 3D FE simulation hasbeen proposed. From the deformation information got by this method, the deformation law of key locations and thewhole deforming body can be obtained. This method can also help to compare the result from FE simulation withthat from physical modeling. Key procedures of this method have been presented in detail, and it has been testedby applying to 3D FE simulation of precision forging of the blade with a damper platform. The result shows thatthe method is practicable and reliable, and it can also be applied to 3D FE simulation of plastic forming processes ofother components.

关键词： Plastic forming, 3D FE simulation, Deformation information

不同浓度矮壮素处理对高温环境黄瓜幼苗徒长及定植后生长的影响

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蔬菜 2024年第4期 30-35页

作者：周昕徐浴力徐强扬州大学江苏扬州225001

秋季黄瓜育苗正值高温季节,容易导致幼苗徒长,为明确高温环境下抑制黄瓜幼苗徒长的适宜矮壮素浓度及其对移栽后黄瓜生长的影响,以黄瓜康秀4号为材料,采用不同浓度(0、200、300、400、500mg/L)的矮壮素,在昼夜温度为33℃/23℃环境下对黄... 详细信息

秋季黄瓜育苗正值高温季节,容易导致幼苗徒长,为明确高温环境下抑制黄瓜幼苗徒长的适宜矮壮素浓度及其对移栽后黄瓜生长的影响,以黄瓜康秀4号为材料,采用不同浓度(0、200、300、400、500mg/L)的矮壮素,在昼夜温度为33℃/23℃环境下对黄瓜幼苗进行喷施处理,分析比较黄瓜幼苗植株性状、壮苗指数及移栽后的株高及产量相关指标。喷施200、300 mg/L矮壮素处理均具有较好的抑制幼苗徒长的效果,喷施200 mg/L矮壮素处理黄瓜株高和下胚轴长均最小,分别较对照显著降低34.9%和24.1%,下胚轴粗、叶面积、根干质量、叶片干质量、壮苗指数均最大,分别较对照提高9.8%、1.3%、6.7%、12.4%、46.7%,且下胚轴粗和壮苗指数与对照间均达显著差异水平;喷施300mg/L矮壮素处理可较好促进植株干、鲜质量的形成,移栽后的株高较对照显著降低8.4%,前期产量较对照显著提高14.5%;喷施500 mg/L矮壮素则对幼苗及移栽后的生长造成了不利影响。因此,200mg/L矮壮素溶液适用于育苗,300 mg/L矮壮素溶液更有利于移栽后早期黄瓜植株生长和产量增加,可根据不同需求进行选择。

关键词：黄瓜矮壮素(CCC) 高温徒长

On Edward Coke＇ s Constitutional Thought and the Value of the Traditional Chinese Legal Thoughts

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学术界 2015年第1期 271-275页

作者： Ma yuli Law School Shandong University Jinan Shandong 250100

Coke was undoubtedly a milestone in the history of the legal thoughts in Britain and even in the whole western *** stressed the restriction of royalty and the suprem e status of the common *** the British Parliament’s struggle against the monarchy in the 17th century,he put forward the creative constitutional ideas about independence of judges and judicial review,advocating the protection of due process and the civil rights,which provided valuable ideological inspiration especially for the development of judicial review and the due process in the U.S.C *** as the saying goes,"the old farmland would grow out new grain",looking back on traditional legal thoughts is im portant to the construction of a legal country for the present China.

关键词：可口可乐法律价值传统中国公民权利思想史 AIN

睿米神经外科医疗机器人立体定向血肿抽吸术围术期快速康复外科理念干预效果分析

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河南外科学杂志 2024年第5期30卷 1-4页

作者：吕玉杰王玉莉河南新乡市中心医院(新乡医学院第四临床学院)神经外科一新乡453099

目的探讨睿米神经外科医疗机器人立体定向血肿抽吸术围术期快速康复外科理念(ERAS)干预的效果。方法回顾性分析新乡市中心医院神经外科2020-01—2022-12行睿米机器人立体定向颅内血肿抽吸术的78例高血压脑出血(HCH)患者的临床资料。根... 详细信息

目的探讨睿米神经外科医疗机器人立体定向血肿抽吸术围术期快速康复外科理念(ERAS)干预的效果。方法回顾性分析新乡市中心医院神经外科2020-01—2022-12行睿米机器人立体定向颅内血肿抽吸术的78例高血压脑出血(HCH)患者的临床资料。根据围术期干预方法分为对照组和ERAS组,各39例。比较2组患者的围手术期指标,采用简易智力状态检查(MMSE)评分、美国国立卫生研究院卒中量表(NIHSS)、Fugl-Meyer量表(FMA)和Barthel指数(BI)评价患者术前及术后2周的认知功能、神经功能、肢体运动功能和日常生活能力。结果2组手术时间和术中出血量差异无统计学意义(P>0.05)。ERAS组患者术后首次排气时间、排便时间及住院时间均短于对照组,差异有统计学意义(P0.05);术后2周时,2组患者的上述评分均较术前显著改善,其中ERAS组患者的改善效果均优于对照组,差异均有统计学意义(P<0.05)。结论与常规干预比较,睿米神经外科医疗机器人立体定向血肿抽吸术围术期采取ERAS理念干预,可提高围手术期管理效果,促进患者术后神经功能恢复。

关键词：睿米机器人立体定位下穿刺抽吸血肿术快速康复外科围手术期护理

过敏性紫癜性肾炎患儿肾功能不全的影响因素分析

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中华肾病研究电子杂志 2024年第2期13卷 68-73页

作者：刘宇立姚瑶徐锦雯无锡市儿童医院肾脏风湿免疫科 214000

目的分析过敏性紫癜性肾炎患儿肾功能不全的影响因素。方法回顾性分析在我院治疗的165例过敏性紫癜性肾炎患儿的临床资料,收集IgG亚类的血清水平。Cox回归模型分析患儿肾功能不全的影响因素。结果肾功能不全发生率为35.15%;发生肾功能... 详细信息

目的分析过敏性紫癜性肾炎患儿肾功能不全的影响因素。方法回顾性分析在我院治疗的165例过敏性紫癜性肾炎患儿的临床资料,收集IgG亚类的血清水平。Cox回归模型分析患儿肾功能不全的影响因素。结果肾功能不全发生率为35.15%;发生肾功能不全患儿的IgG1、IgG2、IgG3、IgG4水平均低于未发生者(P<0.05)。IgG1(RR=0.435,95%CI:0.249~0.671,P=0.013)、IgG2(RR=0.452,95%CI:0.302~0.668,P=0.010)、IgG3(RR=0.396,95%CI:0.245~0.676,P=0.012)、IgG4(RR=0.471,95%CI:0.220~0.668,P=0.018)是肾功能不全的保护因素。皮疹反复(RR=4.189,95%CI:2.637~5.952,P=0.019)、血小板计数升高(RR=4.157,95%CI:2.881~4.762,P<0.001)、血压升高(RR=5.220,95%CI:2.314~6.888,P=0.001)、血糖升高(RR=5.125,95%CI:3.582~6.720,P<0.001)、贫血(RR=5.231,95%CI:4.037~7.869,P=0.007)、新月体形成(RR=5.172,95%CI:3.562~7.074,P=0.004)、肾小管萎缩(RR=5.519,95%CI:3.289~6.968,P=0.021)、肾间质纤维化(RR=6.460,95%CI:4.560~7.887,P=0.003)、治疗不依从(RR=4.994,95%CI:3.462~6.840,P=0.001)是其危险因素。结论IgG亚类水平和皮疹反复、血小板升高、血压升高、血糖升高、贫血、新月体形成、肾小管萎缩、肾间质纤维化、治疗不依从为过敏性紫癜性肾炎患儿肾功能不全影响因素。

关键词：过敏性紫癜性肾炎儿童肾功能不全影响因素

FERONIA-Goddess receptor in plants

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Molecular Plant 2021年第7期14卷 1050-1051页

作者： yuli Ding Hsuan Pai John Innes Centre Norwich Research ParkNorwich NR47UHUK The Sainsbury Laboratory University of East AngliaNorwich Research ParkNorwich NR47UHUK Present address:Institute of Biology Leiden Leiden UniversityLeiden 2333 BEThe Netherlands

Receptor-like kinases,representing the largest transmembrane receptor family in plants,contribute to different aspects of the plant life *** the past decade,a number of studies have highlighted FERONIA(FER)as a versat... 详细信息

关键词： plant versatile

Effect of Geometrical Parameters on Submerged Cavitation Jet Discharged from Profiled Central-body Nozzle

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Chinese Journal of Mechanical Engineering 2013年第3期26卷 476-482页

作者： YANG Minguan XIAO Shengnan KANG Can WANG yuli School of Energy and Power Engineering Jiangsu University

The flow characteristics of cavitation jets are essential issues among relevant studies. The physical properties of the jet are largely determined by the geometrical parameters of the nozzle. The structure and cavitation jets characteristics of the angular-nozzle and the self-resonating cavitation nozzle have been extensively studied, but little research is conducted in the central-body cavitation nozzle mainly because of its hard processing and the cavitation jet effect not satisfactory. In this paper, a novel central-body nozzle (a non-plunger central-body nozzle with square outlet) is studied to solve above problems. Submerged jets discharged from the novel central-body nozzle are simulated, employing the full cavitation model. The impact of nozzle configuration on jet properties is analyzed. The analysis results indicate that when central-body relative diameter keeps constant, there is an optimal contraction degree of nozzle’s outlet, which can induce intense cavitation in the jet. The central-body relative diameter also affects jet profiles. In the case of large central-body relative diameter, most of the bubbles settle in the jet core. On the contrary, a smaller relative diameter makes bubbles concentrate in the interface between the jet and its surrounding fluid. Moreover, the shorter outlet part allows the cavitation zone further extend in both the axial and racial directions. The research results further consummate the study on the central-body nozzles and the correlation between cavitation jet and the structure, and elementarily reveal the mechanism of cavitation jet produced in a non-plunger novel central-body nozzle and the effect of the structure parameters on the cavitation jet, moreover, provide the theoretical basis for the optimal design of the nozzle.

关键词： central-body nozzle cavitation jet square-outlet numerical simulation

Variation in Brewer–Dobson Circulation During Three Sudden Stratospheric Major Warming Events in the 2000s

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Advances in Atmospheric Sciences 2017年第12期34卷 1415-1425页

作者： Mengchu TAO Yi LIU yuli ZHANG Institute of Atmospheric Physics Chinese Academy of Sciences University of Chinese Academy of Sciences

As the strongest subseasonal atmospheric variability during boreal winter, three remarkable sudden stratospheric major warming(SSW) events in the 2000 s are investigated in terms of the Brewer–Dobson circulation(BDC) response. Our study shows that the changes of cross-isentropic velocity during the SSWs are not only confined to the polar region, but also extend to the whole Northern Hemisphere: enhanced descent in the polar region, as well as enhanced ascent in the tropics. When the acceleration of the deep branch of the BDC descends to the middle stratosphere, its strength rapidly decreases over a period of one to two weeks. The acceleration of the deep branch of the BDC is driven by the enhanced planetary wave activity in the mid-to-high-latitude stratosphere. Different from the rapid response of the deep branch of the BDC, tropical upwelling in the lower stratosphere accelerates up to 20%–40% compared with the climatology, 20–30 days after the onset of the SSWs,and the acceleration lasts for one to three months. The enhancement of tropical upwelling is associated with the large-scale wave-breaking in the subtropics interacting with the midlatitude and tropical Quasi-Biennial Oscillation–related mean flow.

关键词： sudden stratospheric major warming Brewer–Dobson circulation subtropical wave