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Semi-supervised non-negative Tucker decomposition for tensor data representation

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Science China(Technological Sciences) 2021年第9期64卷 1881-1892页

作者： QIU YuNing ZHOU GuoXu CHEN XinQi ZHANG DongPing zhao xinhai zhao QiBin School of Automation Guangdong University of TechnologyGuangzhou 510006China Guangdong-HongKong-Macao Joint Laboratory for Smart Discrete Manufacturing Guangzhou 510006China Guangdong Key Laboratory of IoT Information Technology Guangzhou 510006China Key Laboratory of Intelligent Detection and The Internet of Things in Manufacturing Ministry of EducationGuangzhou 510006China

Non-negative Tucker decomposition(NTD) has been developed as a crucial method for non-negative tensor data ***, NTD is essentially an unsupervised method and cannot take advantage of label information. In this paper, we claim that the low-dimensional representation extracted by NTD can be treated as the predicted soft-clustering coefficient matrix and can therefore be learned jointly with label propagation in a unified framework. The proposed method can extract the physicallymeaningful and parts-based representation of tensor data in their natural form while fully exploring the potential ability of the given labels with a nearest neighbors graph. In addition, an efficient accelerated proximal gradient(APG) algorithm is developed to solve the optimization problem. Finally, the experimental results on five benchmark image data sets for semi-supervised clustering and classification tasks demonstrate the superiority of this method over state-of-the-art methods.

关键词： tensor factorization non-negative Tucker decomposition semi-supervised learning label propagation

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激光辅助渐进成形工艺数值模拟分析

装备机械 2024年第2期 92-96页

作者：赵新海司志渊李梦平郑超姜正义山东大学材料学院济南250061 伍伦贡大学机械、材料、机电与生物医学工程学院澳大利亚新南威尔士州

渐进成形具有工艺灵活、适应性强等优点,受到广泛关注。对激光辅助渐进成形工艺进行数值模拟,分析不同激光光斑大小和激光功率对激光辅助渐进成形工艺的影响。同时对比激光辅助渐进成形工艺和常温渐进成形工艺。通过分析,确认采用激光... 详细信息

渐进成形具有工艺灵活、适应性强等优点,受到广泛关注。对激光辅助渐进成形工艺进行数值模拟,分析不同激光光斑大小和激光功率对激光辅助渐进成形工艺的影响。同时对比激光辅助渐进成形工艺和常温渐进成形工艺。通过分析,确认采用激光辅助渐进成形工艺可以提高零件的成形质量。

关键词：激光渐进成形数值模拟分析

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Stretchable poly[2]rotaxane elastomers

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Fundamental Research 2024年第2期4卷 300-306页

作者： Kai Liu xinhai Zhang Dong zhao Ruixue Bai Yongming Wang Xue Yang Jun zhao Hao Zhang Wei Yu Xuzhou Yan School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative MoleculesShanghai Key Laboratory of Electrical Insulation and Thermal AgingShanghai Jiao Tong UniversityShanghai 200240China College of Chemistry and Chemical Engineering National Engineering Research Center for Dyeing and Finishing of TextilesDonghua UniversityShanghai 201620China

Mechanically interlocked polymers(MIPs)are promising candidates for the construction of elastomeric materials with desirable mechanical performance on account of their abilities to undergo inherent rotational and translational mechanical movements at the molecular ***,the investigations on their mechanical properties are lagging far behind their structural fabrication,especially for linear polyrotaxanes in ***,we report stretchable poly[2]rotaxane elastomers(PREs)which integrate numerous mechanical bonds in the polymeric backbone to boost macroscopic mechanical ***,we have synthesized a hydroxyfunctionalized[2]rotaxane that subsequently participates in the condensation polymerization with diisocyanate to form *** from the peculiar structural and dynamic characteristics of the poly[2]rotaxane,the representative PRE exhibits favorable mechanical performance in terms of stretchability(∼1200%),Young’s modulus(24.6 MPa),and toughness(49.5 MJ/m^(3)).Moreover,we present our poly[2]rotaxanes as model systems to understand the relationship between mechanical bonds and macroscopic mechanical *** is concluded that the mechanical properties of our PREs are mainly determined by the unique topological architectures which possess a consecutive energy dissipation pathway including the dissociation of host−guest interaction and consequential sliding motion of the wheel along the axle in the[2]rotaxane motif.

关键词： Polyrotaxanes Mechanically interlocked polymers Mechanically interlocked molecules Dynamic materials Elastomers

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汽车缸盖用新型铝合金的低压铸造工艺研究

热加工工艺 2020年第17期49卷 80-83页

作者：赵海新承德石油高等专科学校河北承德067000

采用不同的浇注温度和加压压力对汽车缸盖用新型铝合金进行了低压铸造试验,并对试样进行了高温摩擦磨损性能和力学性能的测试和分析。结果表明:随浇注温度的升高和压力的增大,试样的磨损体积和断后伸长率先减小后增大,抗拉强度先增大后... 详细信息

采用不同的浇注温度和加压压力对汽车缸盖用新型铝合金进行了低压铸造试验,并对试样进行了高温摩擦磨损性能和力学性能的测试和分析。结果表明:随浇注温度的升高和压力的增大,试样的磨损体积和断后伸长率先减小后增大,抗拉强度先增大后减小,高温摩擦磨损性能和强度均先提升后下降。与690℃浇注相比,710℃浇注时的磨损体积(21×10^-3mm^3)减小43.2%,抗拉强度(249MPa)增大16.9%,断后伸长率变化幅度较小;与0.02 MPa压力相比,0.03 MPa压力铸造时的磨损体积(21×10^-3mm^3)减小25%,抗拉强度(249MPa)增大2.9%,断后伸长率变化幅度较小。汽车缸盖用新型铝合金的铸造工艺参数优选为:710℃浇注温度、0.03 MPa压力。

关键词：浇注温度新型铝合金缸盖高温摩擦磨损性能高温力学性能

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控制变形力的锻造预成形优化设计研究

中国机械工程 2008年第12期19卷 1496-1499页

作者：赵新海黄晓慧吴向红赵国群山东大学济南250061

以刚黏塑性有限元为基础,采用基于灵敏度分析的正向模拟优化法,以直接设计预成形模具形状为目标,提出并建立了一种控制变形力的灵敏度分析理论和模具形状优化设计方法。给出了目标函数的表达形式,确定了优化设计变量,推导了目标函数对... 详细信息

以刚黏塑性有限元为基础,采用基于灵敏度分析的正向模拟优化法,以直接设计预成形模具形状为目标,提出并建立了一种控制变形力的灵敏度分析理论和模具形状优化设计方法。给出了目标函数的表达形式,确定了优化设计变量,推导了目标函数对优化设计变量的灵敏度,利用FORTRAN语言开发了变形力预成形优化设计程序,并对一平面应变变形的H形锻件进行了预成形优化设计,得到了目标函数及终锻件Y向应力分布随优化迭代次数的变化情况。

关键词：灵敏度预成形变形力有限元法

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RPV侧边破口条件下堆外蒸汽爆炸计算分析

核动力工程 2022年第1期43卷 175-182页

作者：陈鹏赵鑫海展德奎夏少雄中广核研究院有限公司广东深圳518000

针对实际过程中更有可能发生的压力容器(RPV)侧边破口条件开展蒸汽爆炸计算分析。根据经济合作与发展组织(OECD)发布的现象识别与重要度排序表(PIRT),选取堆外蒸汽爆炸敏感性分析参数,使用MC3D软件建立三维局部破口和二维环状破口几何模... 详细信息

针对实际过程中更有可能发生的压力容器(RPV)侧边破口条件开展蒸汽爆炸计算分析。根据经济合作与发展组织(OECD)发布的现象识别与重要度排序表(PIRT),选取堆外蒸汽爆炸敏感性分析参数,使用MC3D软件建立三维局部破口和二维环状破口几何模型,对影响计算结果的重要参数(破口尺寸、堆坑水位、破口位置、触发条件、液柱碎化和液滴碎化模型)开展RPV侧边破口条件下敏感性分析,获得最恶劣计算工况条件。敏感性分析结果表明,在大破口失水事故(LBLOCA)工况下,当堆坑处于满水位、RPV发生二维侧边环状破口、接触堆坑侧壁面时触发蒸汽爆炸、采用CONST模型和Classical模型时,堆坑侧壁面的压力载荷计算结果最为保守,对堆坑和安全壳完整性威胁最大。

关键词：堆外蒸汽爆炸 RPV侧边破口 MC3D

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超声速半自由射流的光程差实验

光学学报 2020年第7期40卷 1-5页

作者：赵鑫海易仕和丁浩林张锋金龙国防科技大学空天科学学院湖南长沙410073

针对射流折射率场的非均匀分布会导致成像质量降低的问题,在真空实验舱内研究了不同总压条件下超声速半自由射流的光程差(OPD)分布。实验中三种光路的主光轴与流动方向夹角分别为81°、90°及99°。实验结果表明:总压越大,射流的OPD越大... 详细信息

针对射流折射率场的非均匀分布会导致成像质量降低的问题,在真空实验舱内研究了不同总压条件下超声速半自由射流的光程差(OPD)分布。实验中三种光路的主光轴与流动方向夹角分别为81°、90°及99°。实验结果表明:总压越大,射流的OPD越大;相同总压条件下,81°光路的光程差大于99°光路和90°光路。推导了OPD沿流向分布的经验公式,并在此基础上分析了两种理论模型在该射流流场下的适用性。

关键词：大气光学超声速半自由射流光程差观测角

Micro/nano flow chemistry by Beyond Limits Manufacturing

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Chinese Chemical Letters 2024年第5期35卷 3-12页

作者： Peiwen Liu Fang zhao Jing Zhang Yunpeng Bai Jinxing Ye Bo Bao Xinggui Zhou Li Zhang Changlu Zhou xinhai Yu Peng Zuo Jianye Xia Lian Cen Yangyang Yang Guoyue Shi Lin Xu Weiping Zhu Yufang Xu Xuhong Qian State Key Laboratory of Bioreactor Engineering Shanghai Key Laboratory of Chemical BiologySchool of PharmacyEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China State Key Laboratory of Bioreactor Engineering Shanghai Collaborative Innovation Center for BiomanufacturingEast China University of Science and TechnologyShanghai 200237China School of Biomedical and Pharmaceutical Sciences Guangdong University of TechnologyGuangzhou 510006China School of Mechanical and Power Engineering East China University of Science and TechnologyShanghai 200237China Shanghai Key Laboratory of Green Chemistry and Chemical Processes Department of ChemistrySchool of Chemistry and Molecular EngineeringEast China Normal UniversityShanghai 200241China

In September 2018,we proposed the cutting-edge concept of“Beyond Limits Manufacturing”(BLM).BLM technology is based on the three-dimensional inner engraving or precise outer engraving of ultra-fast laser,to invent micro/nano scale flow chips or devices,which makes it possible for the microform,integration,economy,safety,high efficiency,green and intelligence of research,development and manufacturing process,so as to realize transformational manufacturing in the era of Industry *** this paper,we reviewed the representative results we made in the field of micro/nano flow chemistry during the implementation of the BLM major project(December 2019 to August 2023),and discussed its application prospects in micro/nano flow chemistry.

关键词： Beyond Limits Manufacturing Flow chemistry Pharmaceutical manufacturing Microreactor

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金针菇菌糠饲料化研究与应用进展

中国饲料 2021年第3期 112-116页

作者：赵新海钟丽娟辽宁省微生物科学研究院辽宁朝阳122000

本文主要对我国金针菇菌糠资源情况、营养成分、作为饲料可行性分析、饲料化处理方法及其对营养成分的影响、在养殖业中的应用现状进行综述,并对金针菇菌糠饲料化应用存在的问题和方法提出自己的见解,以期使金针菇菌糠饲料化利用更加科... 详细信息

本文主要对我国金针菇菌糠资源情况、营养成分、作为饲料可行性分析、饲料化处理方法及其对营养成分的影响、在养殖业中的应用现状进行综述,并对金针菇菌糠饲料化应用存在的问题和方法提出自己的见解,以期使金针菇菌糠饲料化利用更加科学合理。

关键词：金针菇菌糠营养发酵饲料