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Vibration-based hypervelocity impact identification and localization

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Frontiers of Information Technology & Electronic Engineering 2022年第4期23卷 515-529页

作者： Jiao BAO lifu liu Jiuwen CAO Department of Computer Engineering Chengdu Technological UniversityChengdu611730China Machine Learning and I-health International Cooperation Base of Zhejiang Province Hangzhou Dianzi UniversityHangzhou310018China Artificial Intelligence Institute Hangzhou Dianzi UniversityHangzhou310018China

Hypervelocity impact(HVI)vibration source identification and localization have found wide applications in many fields,such as manned spacecraft protection and machine tool collision damage detection and *** this paper,we study the synchrosqueezed transform(SST)algorithm and the texture color distribution(TCD)based HVI source identification and localization using impact *** extracted SST and TCD image features are fused for HVI image *** achieve more accurate detection and localization,the optimal selective stitching features OSSST+TCD are obtained by correlating and evaluating the similarity between the sample label and each dimension of the *** conventional classification and regression models are merged by voting and stacking to achieve the final detection and *** demonstrate the effectiveness of the proposed algorithm,the HVI data recorded from three kinds of high-speed bullet striking on an aluminum alloy plate is used for *** experimental results show that the proposed HVI identification and localization algorithm is more accurate than other ***,based on sensor distribution,an accurate four-circle centroid localization algorithm is developed for HVI source coordinate localization.

关键词： Ensemble learning Synchrosqueezied transform Gray-level co-occurrence matrix Image entropy Distance estimation

Dual role of MdSND1 in the biosynthesis of lignin and in signal transduction in response to salt and osmotic stress in apple

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Horticulture Research 2020年第1期7卷 283-295页

作者： Keqin Chen Yunna Guo Mengru Song lifu liu Hao Xue Hongyan Dai Zhihong Zhang Group of Molecular Biology of Fruit Trees College of HorticultureShenyang Agricultural University120 Dongling RoadShenyangLiaoning 110866China Group of Fruit Germplasm Evaluation&Utilization College of HorticultureShenyang Agricultural University120 Dongling RoadShenyangLiaoning 110866China

Clarifying the stress signal transduction pathway would be helpful for understanding the abiotic stress resistance mechanism in apple(Malus×domestica Borkh.)and could assist in the development of new varieties with high stress tolerance by genetic *** key NAC transcription factor SND1,which is involved in the lignin biosynthesis process in apple,was functionally *** results of the stress treatments indicated that MdSND1 could be induced by salt,mannitol and *** with wild-type GL-3 plants,MdSND1-overexpressing apple plants with greater antioxidant capacity and lignin were more resistant to salt and simulated osmotic stress,while RNAi plants were more ***,molecular experiments confirmed that MdSND1 could regulate the biosynthesis of lignin by activating the transcription of MdMYB46/***,genes known to be involved in the stress signal transduction pathway(MdAREB1A,MdAREB1B,MdDREB2A,MdRD29A,and MdRD22)were screened for their close correlations with the expression of MdSND1 and the response to salt and osmotic *** verification tests further demonstrated that MdSND1 could directly bind to these gene promoters and activate their *** above results revealed that MdSND1 is directly involved in the regulation of lignin biosynthesis and the signal transduction pathway involved in the response to both salt and osmotic stress in apple.

关键词： SND1 stress mannitol

Functional identification of MdMYB5 involved in secondary cell wall formation in apple

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Fruit Research 2021年第1期1卷 47-56页

作者： Keqin Chen Xiaoguang Tang Mengru Song Yunna Guo lifu liu Hao Xue Hongyan Dai Zhihong Zhang Group of Molecular Biology of Fruit Trees College of HorticultureShenyang Agricultural University120 Dongling RoadShenyangLiaoning 110866China Group of Fruit Germplasm Evaluation&Utilization College of HorticultureShenyang Agricultural University120 Dongling RoadShenyangLiaoning 110866China

Being the principal elements of secondary cell wall,cellulose and lignin both play a strengthening role in plant structures and stress ***,little research has been done regarding the molecular mechanisms involved in the formation of cellulose and lignin in *** this study,in order to better understand the regulatory network in the formation of secondary cell wall,an R2R3 MYB transcriptional factor MdMYB5 was identified and *** subcellular localization experiments showed that MdMYB5 could function in the *** though lignin and cellulose content,and the expression of their biosynthesis related genes decreased in the MdMYB5-RNAi apple,the ectopic overexpression of MdMYB5 promotes lignin and cellulose content in Arabidopsis,which contributes to the dwarf *** the same time,salt and osmotic stress affect MdMYB5-RNAi apple tissue *** transcriptional activation assays carried out demonstrated that MdMYB5 could be activated by MdMYB46 and *** conclusion,MdMYB5 was required for the normal formation of secondary cell wall in apple and could be activated by the key regulatory factors MdMYB46 and MdSND1.

关键词： cellulose conclusion dwarf

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孔子如何从“君子”变成“圣人”?

伦理学研究 2020年第6期 15-20页

作者：刘立夫中南大学国学研究中心中南大学公共管理学院

“圣人”最初只是对“聪明人”的一个普通称呼,因诸子百家的“造圣运动”而变得高不可攀。孔子本人虽以圣人为高,却甘以君子自比。孔子从君子演变为圣人,前后经过了近400年的岁月。这一过程,离不开孟子、荀子、董仲舒三大儒的努力。孟... 详细信息

“圣人”最初只是对“聪明人”的一个普通称呼,因诸子百家的“造圣运动”而变得高不可攀。孔子本人虽以圣人为高,却甘以君子自比。孔子从君子演变为圣人,前后经过了近400年的岁月。这一过程,离不开孟子、荀子、董仲舒三大儒的努力。孟子以孔子为圣人,凸显了孔子出类拔萃的道德人格、礼乐之道。荀子以孔子为圣人,突出了孔子的“圣人之教”对于“圣王之治”的作用。董仲舒直接促成了儒学与汉代政治的合作,将孔子打造成为历代帝王立法的“至圣”。孔子“至圣”地位的确立,标志着儒学在诸子百家中的最终胜出,标志着孔子被定格为中国文化中至高无上的精神领袖,导致“孔子之后无圣人”。

关键词：孔子君子圣人演变

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唐代宫廷的三教论议

宗教学研究 2010年第1期 147-154页

作者：刘立夫中南大学

唐代宫廷的三教论议或三教论衡是唐代儒佛道三教关系的重要表现形式。这一活动从唐初持续到唐末,五代时期仍有其余绪。三教论议在唐朝的各个历史阶段的情况不一样,可以将它划分为三个阶段:第一阶段为唐高祖、太宗朝,此一阶段的辩论与佛... 详细信息

唐代宫廷的三教论议或三教论衡是唐代儒佛道三教关系的重要表现形式。这一活动从唐初持续到唐末,五代时期仍有其余绪。三教论议在唐朝的各个历史阶段的情况不一样,可以将它划分为三个阶段:第一阶段为唐高祖、太宗朝,此一阶段的辩论与佛道二教的排位有关;第二阶段为高宗朝,内容主要涉及佛道二教的教理争论;第三阶段则为中唐以后,逐渐演变成庆祝君主诞辰的一项颇具娱乐性的活动。唐代宫廷三教论议承当了双重的功能:三教的思想对抗与取悦人主,而正是后一种功能的强化,导致了三教论议的日益沦落。

关键词：唐朝宫廷三教论议佛道争端学术辩论娱乐

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双向电泳分离在髋关节运动损伤中的治疗分析

科技通报 2015年第2期31卷 28-30页

作者：刘利夫重庆电子工程职业学院通识教育学院重庆401331

目的：研究富血小板双向电泳分离在髋关节运动损伤中的治疗分析,提高诊疗效果。方法：考察患者的富血小板的颗粒的粒径（130 nm和290 nm）,分析富血小板的HA分子量（1.1×104 g/mol和3.0×105 g/mol）以及PNIPAm聚合量对患者的髋关节Hav... 详细信息

目的：研究富血小板双向电泳分离在髋关节运动损伤中的治疗分析,提高诊疗效果。方法：考察患者的富血小板的颗粒的粒径（130 nm和290 nm）,分析富血小板的HA分子量（1.1×104 g/mol和3.0×105 g/mol）以及PNIPAm聚合量对患者的髋关节Haversian腺增生和滑膜炎及腱端炎的治疗效果。对富血小板的PNIPAm分子内及分子间疏水相互作用加强,形成疏水层,合成有机-无机杂化颗粒,设计合成结构可控、性能可调的微凝胶。结果：其中31例骨骼肌升高（110~1131μmol/L）;10例骨骼支撑力升高。对患者进行心肌酶谱测试：其中5例CK（92~125 umol/L）、CK-MB（61~312 umol/L）,骨骼淀粉酶：2例升高（125~3165 umol/L）,骨骼反应时间：1例PT〉15 s。壳聚糖微球粒径分别为：2.1、7.2、12.5μm,这些因素都促进了骨骼的生长和修复,这些因素对释放（1-β-4）D-葡糖醛酸和（1-β-3）-N-乙酰基-D-氨基葡糖双糖单元有利。该治疗方案治疗效果较好,患者得到康复。结论：采用双向电泳分析,生成患者的富血小板血浆制备其他亲水性微球,提高患者体内的富血小板再生能力,对治疗患者的髋关节运动损伤效果显著。

关键词：富血小板双向电泳髋关节运动损伤

Advance in Forest Fire Prevention

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Advance in Forest Fire Prevention

体育器械用AZ31镁合金表面等离子喷涂涂层的组织与性能研究

作者： Tian Xiaorui,Shu lifu,Niu Shukui, liu Xiaodong,Hu Haiqing,Wang Mingyu

＜正＞This paper reviewed the status and the development trend of forest fire prevention discipline,as well as compared the research difference in this area both in domestic and *** results indicated that there is a b...

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铸造技术 2015年第1期36卷 131-133页

作者：刘利夫张华重庆电子工程职业学院体育教研室重庆401331 重庆电子工程职业学院建筑与材料学院重庆401331

对体育器械用AZ31镁合金进行等离子喷涂表面处理,对比分析了不同喷涂电流下涂层界面的微观组织和界面结合强度。结果表明,喷涂电流为500 A时,涂层与基体的结合最为致密、均匀,涂层与基体的结合强度最大。

关键词：体育器械 AZ31镁合金涂层性能

王阳明“四句教”的争议:逻辑矛盾还是理解差异?

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人文杂志 2024年第3期 16-24页

作者：刘立夫刘雨田中南大学人文学院

王阳明晚年提出的“四句教”,长期以来遭到学者的质疑。明清以降的正统儒者,多以为“无善无恶”与禅学无异,颠覆了儒家性善论的根基。这个问题只有回到“三教合流”的特殊语境中,才能得到合理的解答。王阳明通过对“人心本体”与“良知... 详细信息

王阳明晚年提出的“四句教”,长期以来遭到学者的质疑。明清以降的正统儒者,多以为“无善无恶”与禅学无异,颠覆了儒家性善论的根基。这个问题只有回到“三教合流”的特殊语境中,才能得到合理的解答。王阳明通过对“人心本体”与“良知本体”的区分,实际上化解了四句教的逻辑矛盾,即良心解决人的道德生活,人心则解决人的精神自由,人心的无善无恶并不影响良心的知善知恶。这可视为阳明心学对传统儒学进行创造性转化、创新性发展的一个经典范例。

关键词：四句教无善无恶良心本体人心本体