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面向非线性特征的三维CAD模型聚类

计算机辅助设计与图形学学报 2015年第8期27卷 1578-1586页

作者：白静罗皓楠秦飞巍北方民族大学计算机科学与工程学院银川750021 杭州电子科技大学计算机学院杭州310018

拓扑结构是三维CAD模型的关键属性,其对应的描述符为图、树等非线性结构.针对现有聚类算法无法有效对这些非线性描述符聚类的问题,提出一种面向非线性特征的三维CAD模型聚类算法.首先将各类非线性特征统一表征为属性图,定义属性图序列... 详细信息

拓扑结构是三维CAD模型的关键属性,其对应的描述符为图、树等非线性结构.针对现有聚类算法无法有效对这些非线性描述符聚类的问题,提出一种面向非线性特征的三维CAD模型聚类算法.首先将各类非线性特征统一表征为属性图,定义属性图序列的距离矩阵;然后以距离矩阵为输入,利用非线性凝聚层次聚类算法实现属性图的聚类;最后以聚类结果为学习样本,引入增量模型的动态归类方法归类新增模式,实现三维CAD模型可重用区域的有效聚类.理论分析及实验结果表明了该算法的有效性.

关键词：非线性凝聚层次聚类三维CAD模型可重用区域非线性特征动态归类

A Machine Learning Based Method of Constructing Virtual Inertial Measurement Predictor of Human Body

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A Machine Learning Based Method of Constructing Virtual Iner...

电感耦合等离子体发射光谱(ICP-OES)法测定废催化剂及浸取渣中7种有价元素

第36届中国控制会议

作者： QIAN Weixing LI Rongbing XIE Fei luo haonan WANG Yuntao ZHENG Tingting School of Electrical and Automation Engineering Nanjing Normal University College of Automation Nanjing University of Aeronautics and Astronautics

In recent years,using human characteristics to assist exoskeleton robot control is one of the hot spots in the field of robot *** the problem that extremity installation of inertial measurement components in human body cannot achieve effective measurement,a method of constructing virtual inertial measurement predictor of human body based on machine learning is *** method uses the outputs of the inertial measurement components synchronously installed on the extremities and other parts of the body as the data samples,through recurrent neural network,it realizes the construction of virtual inertial measurement components and their *** order to improve the training effect,the training samples are filtered based on gait phase *** simulation based on Anybody and MATLAB shows that,by installing the inertial measurement component near hip joint,the proposed method can effectively simulate and predict the inertial measurement component’s output of centroid position of foot and surface of shank.

关键词： Kinematic model of human body Virtual sensor Machine learning Gait detection Motion prediction

来源： cnki会议评论

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中国无机分析化学 2024年第10期14卷 1431-1436页

作者：田坤徐臣松罗昊楠贵州威顿催化技术有限公司贵州铜仁554300

工业硫酸废催化剂中含有大量的钒、钠、钾、硫及少量铝、铁、砷物质,常作为钒和碱金属盐提取的重要原料。快速准确测定废催化剂及浸取渣中相关组分含量对其分离提取至关重要。在柱层析分离的基础上,浸取处理后样品中V、Na、S、K的浸出... 详细信息

工业硫酸废催化剂中含有大量的钒、钠、钾、硫及少量铝、铁、砷物质,常作为钒和碱金属盐提取的重要原料。快速准确测定废催化剂及浸取渣中相关组分含量对其分离提取至关重要。在柱层析分离的基础上,浸取处理后样品中V、Na、S、K的浸出率分别为95.28%、98.39%、98.88%、97.82%,S扫描电子显微镜(SEM)表征结果表明,载体表面及孔道中沉积物溶解消失。同时,采用电感耦合等离子体发射光谱(ICP-OES)法进行测定,并确定了各元素的谱线(V 309.311 nm、Na 589.490 nm、K 766.490 nm、S 180.731 nm、Al 394.401 nm、Fe 238.204 nm、As 189.042 nm)。结果表明,各元素的质量浓度在一定范围内与发射强度呈线性、校准工作曲线的线性相关系数除砷为0.999 7外,均大于0.999 9,各元素的检出限为0.004~0.017μg/g,测定结果相对偏差(RSD,n=11)除砷为2.2%,其余元素均小于0.90%,且加标回收率在98.9%~102%。方法准确度及精密度均可以满足工业硫酸废催化剂中多种元素测试要求,为废催化剂浸取分离过程中各元素含量提供数据参考。

关键词：废催化剂柱层析浸取微波消解电感耦合等离子体发射光谱法

Exploring practical methods for detecting k-nonseparability in multipartite quantum states

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 255-256页

作者： Shunlong luo Academy of Mathematics and Systems Science Chinese Academy of Sciences

Quantum entanglement, referred to as “spooky action at a distance” by Einstein, is not only an intriguing and fascinating feature of quantum theory challenging our classical intuitions about locality and correlations, but also has practical and profound implications for quantum technologies. Initially described by Einstein, Podolsky and Rosen, as well as by Schro¨dinger, entanglement now has become a basic and crucial ingredient for both foundational and experimental investigations of the quantum world.

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一种基于机器学习的相似度算法在文本相似度比较中的应用--以法律文本比较为例

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工业控制计算机 2020年第6期33卷 3-5页

作者：骆浩楠汪峥李峰东南大学自动化学院江苏南京210096 东南大学信息科学与工程学院江苏南京211100

随着法律文本的大量公开,在文本挖掘中发挥越来越重要的作用,同时随着机器学习与自然语言处理技术的发展,其与大数据的融合运用逐渐普及,将两者结合起来进行相似度判别分析,有利于对法律文本的充分挖掘利用,对于帮助用户了解案情,同时... 详细信息

随着法律文本的大量公开,在文本挖掘中发挥越来越重要的作用,同时随着机器学习与自然语言处理技术的发展,其与大数据的融合运用逐渐普及,将两者结合起来进行相似度判别分析,有利于对法律文本的充分挖掘利用,对于帮助用户了解案情,同时基于法律文本相似度分析可拓展更多应用,对于促进国家法制化建设具有重要意义。使用了一种基于机器学习的相似度算法,通过与不同词向量结合的方式,能够有效提升文本相似度对比的准确率。通过在真实民间借贷类法律文本比较案例中实验取得明显效果,准确率提升10%,具有较好的使用前景。

关键词：民间借贷法律文本相似度计算机器学习自然语言处理

Tilting homeostatic and dyshomeostatic microglial balance in health and disease:transforming growth factor-beta1 as a critical protagonist

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Neural Regeneration Research 2025年第10期20卷 2895-2897页

作者： Nicolas Hugues Yu luo Department of Molecular and Cellular Biosciences University of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program University of CincinnatiCincinnatiOHUSA Division of Immunobiology Cincinnati Children’s Hospital Medical CenterUniversity of Cincinnati College of MedicineCincinnatiOHUSA

Adult microglia,by continuously sensing changes in their environment and communicating with nearly all brain cell types,are considered to be the immune sentinels of the *** the healthy central nervous system(CNS),microglia display a unique molecular homeostatic signature(i.e.,Tmem119,P2ry12,Sall1,Siglech,Gpr34,and Hexb)(Figure 1A).

关键词： Figure signature critical

P2Y1 receptor in Alzheimer’s disease

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Neural Regeneration Research 2025年第2期20卷 440-453页

作者： Shan luo Yifei Wang Tatsuhiro Hisatsune Department of Integrated Biosciences The University of TokyoKashiwaJapan

Alzheimer’s disease is the most frequent form of dementia characterized by the deposition of amyloid-beta plaques and neurofibrillary tangles consisting of hyperphosphorylated *** amyloid-beta plaques has been a primary direction for developing Alzheimer’s disease treatments in the last ***,existing drugs targeting amyloid-beta plaques have not fully yielded the expected results in the clinic,necessitating the exploration of alternative therapeutic *** evidence unravels that astrocyte morphology and function alter in the brain of Alzheimer’s disease patients,with dysregulated astrocytic purinergic receptors,particularly the P2Y1 receptor,all of which constitute the pathophysiology of Alzheimer’s *** receptors are not only crucial for maintaining normal astrocyte function but are also highly implicated in neuroinflammation in Alzheimer’s *** review delves into recent insights into the association between P2Y1 receptor and Alzheimer’s disease to underscore the potential neuroprotective role of P2Y1 receptor in Alzheimer’s disease by mitigating neuroinflammation,thus offering promising avenues for developing drugs for Alzheimer’s disease and potentially contributing to the development of more effective treatments.

关键词： astrocytes neuroinflammation P2Y1 receptor purinergic receptor

Effect of Nb-V microalloying on the hot deformation behavior of medium Mn steels

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 360-368页

作者： Yumeng Wang Qinyi Guo Bin Hu Haiwen luo School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China

The influence of Nb-V microalloying on the hot deformation behavior and microstructures of medium Mn steel(MMS)was investigated by uniaxial hot compression *** establishing the constitutive equations for simulating the measured flow curves,we successfully constructed deformation activation energy(Q)maps and processing maps for identifying the region of flow *** concluded the following consequences of Nb-V alloying for MMS.(i)The critical strain increases and the increment diminishes with the increasing deformation temperature,suggesting that NbC precipitates more efficiently retard dynamic recrystallization(DRX)in MMS compared with solute Nb.(ii)The deformation activation energy of MMS is significantly increased and even higher than that of some reported high Mn steels,suggesting that its ability to retard DRX is greater than that of the high Mn content.(iii)The hot workability of MMS is improved by narrowing the hot processing window for the unstable flow stress,in which fine recrystallized and coarse unrecrystallized grains are present.

关键词： medium manganese steel niobium-vanadium microalloying flow behavior dynamic recrystallization hot workability

Brain endothelial cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway in aging and neurodegeneration

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Neural Regeneration Research 2025年第7期20卷 2005-2007页

作者： Bryan Sun Lulin Li Jian luo Palo Alto Veterans Institute for Research VA Palo Alto Health Care SystemPalo AltoCAUSA Polytrauma System of Care VA Palo Alto Health Care SystemPalo AltoCAUSA

The cyclic GMP-AMP synthase(cGAS)-stimulator of interferon genes(STING)signaling pathway has emerged as a key mediator of *** current studies primarily attribute its effects to neurons and glial cells,emerging research suggests that cGAS-STING signaling may play a critical role in cerebral vasculature,particularly in brain endothelial ***,studying the role 7of inflammation caused by the cGAS-STING pathway in brain endothelial cells could provide a more comprehensive understanding of neuroinflammatory disease and new avenues for therapeutic ***,we review the multifaceted role of global cGAS-STING signaling in various neurological and neuroinflammatory diseases and the potential contribution of cGAS-STING in brain endothelial cells.

关键词： stimulator interferon inflammation