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应用对应分析法研究我国文化产业发展地区差异

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安庆师范大学学报（自然科学版） 2018年第3期24卷 53-57页

作者：程越岳汪时珍丁仕潮安庆师范大学经济与管理学院安徽安庆2461331

新时期文化产业在国民经济中的作用愈加重要,而文化产业发展的不平衡性也愈加明显。为了深入了解文化产业发展差异,本文首先利用波特钻石模型理论,构建了文化产业发展水平的评价指标体系;其次采用2013—2016年的省际面板数据,通过变异... 详细信息

新时期文化产业在国民经济中的作用愈加重要,而文化产业发展的不平衡性也愈加明显。为了深入了解文化产业发展差异,本文首先利用波特钻石模型理论,构建了文化产业发展水平的评价指标体系;其次采用2013—2016年的省际面板数据,通过变异系数赋权法确定各指标权重,并利用对应分析法得出各地区文化产业发展水平与全国平均水平的平均差异,根据差异将全国31个省市文化产业发展水平划分为三类,同时结合对应分析图讨论地区之间、指标之间以及地区与指标之间的相互关系;最后利用对应分析结果,从内外部要素驱动等方面提出了各地区文化产业发展的对策建议。

关键词：文化产业地区差异对应分析法影响因素

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帽形件链模成形仿真与试验研究

锻压技术 2019年第4期44卷 35-39,47页

作者：张智恒钱朕李亚光丁士超李大永上海交通大学机械与动力工程学院上海200240 昆士兰大学机械与矿业工程学院

通过数值模拟与成形试验的方法,研究多道次链模成形帽形件的可行性。建立了多道次链模成形帽形件的有限元模型,研究了成形过程中应力、应变的分布情况及发展历程,并估算了各道次机架的工作载荷。基于仿真结果,开发了多道次链模成形试验... 详细信息

通过数值模拟与成形试验的方法,研究多道次链模成形帽形件的可行性。建立了多道次链模成形帽形件的有限元模型,研究了成形过程中应力、应变的分布情况及发展历程,并估算了各道次机架的工作载荷。基于仿真结果,开发了多道次链模成形试验机,进行了帽形件的成形试验,结果发现,成形过程中未出现圆角破裂,成形效果良好。最后,将试验结果分别与仿真结果和目标形状进行对比发现,虽然腹板区域仍然存在轻微成形质量问题,但翻折角和压深的误差分别被控制在1°和0. 5 mm以下,成形目标基本实现,通过对比既验证了仿真模型的准确性,也说明成形方案的可行性。

关键词：链模成形帽形件翻折角压深有限元模拟

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薄壁件选区激光熔化成形精度控制分析及优化

重庆理工大学学报（自然科学） 2024年第4期38卷 100-107页

作者：祝世超丁雨露施书杰龙兵陈荣华尹飞鸿赵景波常州工学院航空与机械工程学院江苏常州213032 常州工学院汽车工程学院江苏常州213032

为了解决薄壁件选区激光熔化成形(selective laser melting,SLM)过程中残余应力引起的变形问题,保证成形精度,以SLM制备的钛合金雷达屏蔽器为研究对象,使用固有应变法对其进行变形分析和应力分析。提出了一种基于体素仿真模型的反变形... 详细信息

为了解决薄壁件选区激光熔化成形(selective laser melting,SLM)过程中残余应力引起的变形问题,保证成形精度,以SLM制备的钛合金雷达屏蔽器为研究对象,使用固有应变法对其进行变形分析和应力分析。提出了一种基于体素仿真模型的反变形补偿方法,并对其进行实验验证。结果表明:SLM制备的屏蔽器残余应力和位移较大,最大分别达831 MPa和0.61 mm。经过反变形补偿后,屏蔽器表面区域的整体变形量偏差从0.582 mm下降到0.438 mm以内,误差减少24.7%,从而保证了屏蔽器的打印质量。

关键词：选区激光熔化固有应变法有限元分析反变形补偿

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先进高强钢帽形件链模成形数值模拟

锻压技术 2020年第7期45卷 103-106,116页

作者：梁振业杨浩肖华石磊丁士超李大永彭颖红上海交通大学机械系统与振动国家重点实验室上海200240 宝山钢铁股份有限公司研究院上海201900 汽车用钢开发与应用技术国家重点实验室(宝钢) 上海201900 宁波赛乐福板材成型技术有限公司浙江宁波315000

建立了QP1180先进高强钢帽形件链模成形的ABAQUS/Standard有限元模型,对成形及回弹过程进行了模拟。分析了先进高强钢等截面帽形件链模成形的不同参数,包括上下模具间隙、法向接触方式、摩擦系数以及材料塑性定义方式,对底板圆角处最外... 详细信息

建立了QP1180先进高强钢帽形件链模成形的ABAQUS/Standard有限元模型,对成形及回弹过程进行了模拟。分析了先进高强钢等截面帽形件链模成形的不同参数,包括上下模具间隙、法向接触方式、摩擦系数以及材料塑性定义方式,对底板圆角处最外层单元的最大主应变及与帽形件端部截面回弹形状的影响。结果表明,上下模具间隙与摩擦系数对帽形件底板圆角处最外层单元的最大主应变有显著影响,且该区域最大主应变随上下模具间隙的减小而增大,随摩擦系数的增大而增大;上下模具间隙、材料塑性定义方式以及摩擦系数对帽形件端部截面回弹形状具有较明显的影响。

关键词：先进高强钢链模成形帽形件最大主应变回弹形状

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离子液体在分子印迹技术中的应用研究进展

化工新型材料 2017年第9期45卷 35-36,39页

作者：闫妍胡小玲莫丽娜白亦菲李蓓丁士超杜春保西北工业大学理学院西安710129

离子液体由于其独特的物化性质被广泛应用于化学研究的各个领域。重点介绍了离子液体在分子印迹技术中的应用进展。此外,还对离子液体应用在分子印迹技术中的主要困难和问题进行了综述,并展望了今后的发展方向。

关键词：离子液体分子印迹技术识别

Estimation of copper concentration of rocks using hyperspectral technology

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Frontiers of Earth Science 2019年第3期13卷 563-574页

作者： shichao CUI Kefa ZHOU Rufu ding State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China Xinjiang Key Laboratory of Mineral Resources and Digital Geology Urumqi 830011China Xinjiang Research Center for Mineral Resources Chinese Academy of SciencesUrumqi 830011China University of the Chinese Academy of Sciences Beijing 100049China China Non-Ferrous Metals Resources Geological Survey Beijing 100012China

Rock geochemical information is important for mineral exploration and provides a theoretical basis for the rapid delineation of hidden minerals. Remote sensing technology provides the possibility of rapid and large-scale extraction of geochemical information from the earth’s surface. This study analyzed the relationship between copper concentration and rock spectra by first collecting 222 rock samples, and then measuring the copper concentration of rock samples in the laboratory and reflectance spectra using an ASD FieldSpec3 portable spectrometer. It finally established quantitative relationships between the original spectra, first-order derivative spectra and second-order derivative spectra and copper concentration, respectively, using the partial least squares support vector machine method (PLS-SVM). The results show that 1) The estimation accuracy of using second-order derivatives spectra as input parameters to establish a model for estimating copper concentration is the highest, and the determined coefficient (R2) between the predicted value and real value reaches 0.54. 2) When the copper concentration is less than 80 mg/kg, the inversion model of copper concentration established using PLS-SVM obtains a good result. The R2 between the predicted copper concentration and the real copper concentration reached 0.70248. When the copper concentration is greater than 80 mg/kg, the inversion model of copper concentration established using partial least squares (PLS) obtains a good result. The R2 between the predicted copper concentration and the real copper concentration reached 0.49. The R2 between real copper concentration and copper predicted by the method of piecewise separate modeling reaches ***, the method of segmental modeling has great potential to improve the accuracy of copper concentration inversion.

关键词： copper concentration rock geochemical information PLS-SVM remote sensing

Geochronology and zircon geochemistry of auriferous intrusions in the Bumo deposit,Hainan Province,China

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Acta Geochimica 2022年第2期41卷 208-225页

作者： Yan Hai Bingtao Li Teng Deng Deru Xu Li Wang Youzhong Xiong Xiaowen Zhang Zhiling Wang Shaohao Zou Zhengpeng ding Qian Qian shichao Guo School of Earth Sciences East China University of TechnologyNanchang 330013China State Key Laboratory of Nuclear Resources and Environment East China University of TechnologyNanchang 330013China Zhaojin Group Co. LtdDongfang 572600HainanChina Jiangxi Engineering Laboratory on Radioactive Geoscience and Big Data Technology East China University of TechnologyNanchang 330013JiangxiChina Resource and Environment Survey Institute of Hainan Province Haikou 570206China School of Geosciences and Info-Physics Central South UniversityChangsha 410083China

Intrusion-related gold deposits(IRGS)are a lowgrade,large-tonnage exploration ***,auriferous magmatic rocks were found in the Bumo deposit of the Gezhen shear zone in Hainan Province,***,the geochronology and geochemical characteristics of the intrusions,as well as the mineralization potential,are still *** and petrographic work show that the sulfidebearing intrusions can be divided into diorite porphyrites,quartz monzodiorites and *** LA–ICP–MS U–Pb dating demonstrates that diorite porphyrites,quartz monzodiorites and monzodiorites were formed at104±1,114±1,114±1 Ma,*** addition,sulfides in Yanshanian intrusion-related gold mineralization haveδ;S values of 0.2–4.4%,lower than those in Hercynian-Indosinian(1.9–9.8%)orogenic deposits(ca.219–378 Ma)in the Gezhen shear *** addition,all these intrusions display close correlations between Eu/EuN*with Th/U,consistent with the differentiation of amphibole,apatite and titanite from a hydrous ***,zircon Eu/EuN*in the intrusions are higher than0.4,demonstrating that the magmatic rocks have high water contents and oxygen fugacity values,favorable for gold ***,the Yanshanian magmatic rocks can be a new potential gold exploration target in the Gezhen shear zone.

关键词： Hainan Bumo Intrusion-related mineralization Zircon trace elements Gold mineralization

基于SLM钛合金方向舵退火工艺仿真分析与优化

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机械设计与制造工程 2024年第1期53卷 25-29页

作者：丁雨露祝世超吴政洋龙兵陈荣华尹飞鸿常州工学院航空与机械工程学院江苏常州213300

以SLM方法制备的钛合金方向舵为研究对象,采用固有应变法对其进行残余应力和变形分析,提出基于体单元仿真模型的退火工艺,并对其进行有限元仿真分析及工艺参数优化。结果表明:SLM方法制备的钛合金方向舵残余应力和变形量均较大,通过全... 详细信息

以SLM方法制备的钛合金方向舵为研究对象,采用固有应变法对其进行残余应力和变形分析,提出基于体单元仿真模型的退火工艺,并对其进行有限元仿真分析及工艺参数优化。结果表明:SLM方法制备的钛合金方向舵残余应力和变形量均较大,通过全交实验进行工艺参数优化后,方向舵的残余应力从1 206.96 MPa下降到143.86 MPa,变形量从8.63 mm减小到2.08 mm。

关键词：激光选区熔化固有应变法退火工艺仿真

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Electrolyte induced synergistic construction of cathode electrolyte interphase and capture of reactive free radicals for safer high energy density lithium-ion battery

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Journal of Energy Chemistry 2023年第12期87卷 207-214,I0006页

作者： Mengfei ding Xuning Feng Yong Peng Jing Jing Tong Bowen Hou Yalan Xing Weifeng Zhang Li Wang Yu Wu Jiabin Lv Chunyan Luo Dejun Xiong shichao Zhang Minggao Ouyang School of Materials Science and Engineering Beihang UniversityBeijing 100191China State Key Laboratory of Intelligent Green Vehicle and Mobility Tsinghua UniversityBeijing 100084China School of Vehicle and Mobility Tsinghua UniversityBeijing 100084China School of Mechanical and Electronic Control Engineering Beijing Jiaotong UniversityBeijing 100044China Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China Farasis Energy(GanZhou)Co.Ltd GanZhou 341000JiangxiChina

As the energy density of battery increases rapidly,lithium-ion batteries(LIBs)are facing serious safety issue with thermal runaway,which largely limits the large-scale applications of high-energy-density *** is generally agreed that the chemical crosstalk between the cathode and anode leads to thermal runaway of ***,a multifunctional high safety electrolyte is designed with synergistic construction of cathode electrolyte interphase and capture of reactive free radicals to limit the intrinsic pathway of thermal *** cathode electrolyte interphase not only resists the gas attack from the anode but suppresses the parasitic side reactions induced by *** the function of free radical capture has the ability of reducing heat release from thermal runaway of *** dual strategy improves the intrinsic safety of battery prominently that the triggering temperature of thermal runaway is increased by 24.4℃and the maximum temperature is reduced by 177.7℃.Simultaneously,the thermal runaway propagation in module can be ***,the electrolyte design balances the trade-off of electrochemical and safety performance of high-energy *** capacity retention of LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)|graphite pouch cell has been significantly increased from 53.85%to 97.05%with higher coulombic efficiency of 99.94%at operating voltage extended up to 4.5 V for 200 ***,this work suggests a feasible strategy to mitigate the safety risk of high-energy-density LIBs without sacrificing electrochemical performances.

关键词： Lithium-ion battery Electrolyte Battery safety Thermal runaway