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基于改进NSGA-Ⅱ算法的柔性车间调度问题研究

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长春理工大学学报（自然科学版） 2024年第2期47卷 44-52页

作者：李政于正林邵长顺长春理工大学机电工程学院长春130022

研究了柔性车间调度中双目标调度优化问题,以最小化最大完工时间和最小化机器空载率为优化目标,基于生产机加车间产线建立数学模型。选取NSGA-Ⅱ(Non-dominated Sorting Genetic AlgorithmsⅡ,NSGA-Ⅱ)算法作为基础算法,在此基础上提出... 详细信息

研究了柔性车间调度中双目标调度优化问题,以最小化最大完工时间和最小化机器空载率为优化目标,基于生产机加车间产线建立数学模型。选取NSGA-Ⅱ(Non-dominated Sorting Genetic AlgorithmsⅡ,NSGA-Ⅱ)算法作为基础算法,在此基础上提出基于反向学习的NSGA-Ⅱ算法(简称OBL-NSGA-Ⅱ),通过引入反向种群,增加种群的多样性,保证了解的质量,能够有效避免算法迭代过程中由于种群多样性降低导致算法陷入局部最优的问题。最后通过Matlab仿真软件进行了对比实验,验证了所提算法的有效性。

关键词： NSGA-Ⅱ算法反向学习双目标调度优化种群多样性

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基于改进YOLOv5的轴承表面缺陷检测

组合机床与自动化加工技术 2024年第6期 166-170页

作者：吴迪于正林徐式达周斌邵长顺长春理工大学机电工程学院长春130022 长春理工大学重庆研究院重庆401135

传统的轴承表面缺陷检测由于缺陷目标较小,错检漏检率高,检测效率低等问题,为此提出一种基于YOLOv5网络改进的算法模型。首先,在主干网络中添加高效通道注意力机制(efficient channel attention, ECA),增强网络的特征提取能力,集中关注... 详细信息

传统的轴承表面缺陷检测由于缺陷目标较小,错检漏检率高,检测效率低等问题,为此提出一种基于YOLOv5网络改进的算法模型。首先,在主干网络中添加高效通道注意力机制(efficient channel attention, ECA),增强网络的特征提取能力,集中关注各种影响轴承质量的重点信息;其次,在YOLOv5网络基础上添加小目标检测层,通过补充融合特征层和引入额外检测头,提高网络对小目标缺陷检测的精度;最后,在特征融合网络中,融入简化后的加权双向特征金字塔网络(bidirectional feature pyramid network, BiFPN),在不增加较多计算成本的基础上,更好地实现多尺度特征融合。在构建的深沟球轴承表面缺陷数据集上的实验结果表明,相比于原YOLOv5s模型,精确率、召回率、平均精度分别提高了5.8%、2.4%、5.3%,检测速度为71 f/s,满足工业大批量检测的要求。

关键词： YOLOv5 缺陷检测注意力机制小目标检测层简化BiFPN

Aggregation behavior of juvenile Neptunea cumingii and eff ects on seed production

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Journal of Oceanology and Limnology 2020年第5期38卷 1590-1598页

作者： yu zhenglin HU Zhi SONG Hao XU Tao YANG Meijie ZHOU Cong ZHANG Tao CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China CAS Engineering Laboratory for Marine Ranching Institute of OceanologyChinese Academy of SciencesQingdao 266071China University of Chinese Academy of Sciences Beijing 100049China Shandong Fisheries Technology Extension Center Jinan 250013China

Neptunea cumingii is an important nutrition-rich economic species in *** of *** suff er from high mortality at low temperatures,which has proved a limiting factor in raising seedlings in artifi cial *** research has shown that *** displays aggregation behavior in response to adverse environmental ***,we determined the eff ects of temperature,food,size of juvenile snails,substratum type,and density of juvenile snails on the aggregation behavior of *** show that,at a low(4°C)or a high(22°C)temperature,juvenile snails adjusted to the inhospitable environment by exhibiting increased aggregation ***,their aggregation behaviors diff ered at these two *** was no signifi cant diff erence in the aggregation rate,but the typical aggregation size was larger at 4°C than at 22°*** 10°C or 16°C,aggregation behavior of juvenile snails *** increased in the satiation treatment at 10°C and 16°***-sized juveniles tended to have higher aggregation rates(92.22%)and a larger typical aggregation *** juveniles were distributed in the bottom of shaded substrata.A larger typical aggregation size or higher density signifi cantly reduced the mortality of juvenile snails at a low temperature(4°C).These results broaden our understanding of gastropod aggregation behavior and can be used to develop and improve commercial breeding strategies and resource recovery for ***.

关键词： aggregation behavior Neptunea cumingii environmental temperature survival rate seed production

Settlement and metamorphosis of R apana venosa(Gastropoda: Muricidae) with implications for artificial culture

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Journal of Oceanology and Limnology 2020年第1期38卷 249-259页

作者： yu zhenglin YANG Meijie SONG Hao HU Zhi ZHOU Cong WANG Xiaolong LI Haizhou ZHANG Tao Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Shandong Fu Han Ocean Sci-Tech Co.Ltd. Haiyang 265114China

The rapa whelk Rapana venosa transforms from a phytophagous larva to a camivorous juvenile after settlement and *** high mortality rate and low metamorphosis rate(<1%)of larvae are among the key factors limiting the recovery of the resources *** studied these two processes and showed that the larva has the ability to settle and metamorphose in the middle and late 4 spiral whorl period,and the use of substrates(scallop shells with oysters)can significantly improve the settlement and metamorphosis rate of *** presence of darkness,juvenile bivalve shellfish,and oyster polysaccharide could effectively increase the rates of larval settlement and *** findings broaden the understanding of settlement and metamorphosis in gastropods and can be used to improve population control,resource recovery and commercial breeding strategies for ***.

关键词： larval development substrate oyster polysaccharide commercial breeding

Molecular response and developmental speculations in metamorphosis of the veined rapa whelk,Rapana venosa

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Integrative Zoology 2023年第3期18卷 506-517页

作者： Pu SHI Hao SONG Jie FENG Meijie YANG zhenglin yu Zhi HU Cong ZHOU Haizhou LI Tao ZHANG CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdaoChina Laboratory for Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and TechnologyQingdaoChina Center for Ocean Mega-Science Chinese Academy of SciencesQingdaoChina CAS Engineering Laboratory for Marine Ranching Institute of OceanologyChinese Academy of SciencesQingdaoChina University of Chinese Academy of Sciences BeijingChina Shandong Province Key Laboratory of Experimental Marine Biology QingdaoChina FuHan Ocean Technology Co. LtdHaiyangChina

Metamorphosis is the short developmental stage characterized by dramatic ontogenetic changes that occurs in most ***,this important process remains largely unclear in marine *** this study,we performed the sequential RNA sequencing of a representative mollusk,the rapa whelk(Rapana venosa),that is undergoing metamorphosis and conducted differential gene expression analysis and weighted gene co-expression network analysis(WGCNA)to investigate the overall and dynamic transcriptome *** results revealed that the expression of cytochrome P4502A and 3A were upregulated during metamorphosis,while the expression of H/ACA ribonucleoproteins increased 4 h after metamorphosis induction(M4 stage),indicating that *** mainly responded to the pelagobenthic *** the M24 stage,the enrichment of V-type proton ATPase and insulin indicated the complete development of secretory organs and initiation of hormone ***,at the M48 stage,the enrichment of zinc metalloproteinase and conotoxin indicated a well-developed predation system that requires exogenous ***,during the PL stage,the genes associated with growth control were highly enriched,implying that *** had completed metamorphosis and has entered the period of rapid ***,our study provides useful transcriptomic resources for *** and contributes new insights that may assist in elucidating the mechanisms underlying metamorphosis in marine invertebrates.

关键词： metamorphosis mollusk rapa whelk transcriptomics

政绩驱动下的工会行动——对F厂工会主动介入生产管理过程的调查与思考

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学海 2011年第1期 138-145页

作者：游正林中国政法大学社会学院

F厂是隶属于某集团公司的一家国有独资企业。自2008年10月1日以后,F厂工会主动介入生产管理过程,牵头开展了"生产操作无差错"和"修旧利废"活动。这两项活动并非工会必须开展的本职工作,F工会之所以要超常规地开展这两项活动,主要是出于... 详细信息

F厂是隶属于某集团公司的一家国有独资企业。自2008年10月1日以后,F厂工会主动介入生产管理过程,牵头开展了"生产操作无差错"和"修旧利废"活动。这两项活动并非工会必须开展的本职工作,F工会之所以要超常规地开展这两项活动,主要是出于追求政绩的考虑。那么,F厂工会为什么要选择以这种方式来追求政绩?我们应该如何看待这种追求政绩的做法?本文力图回答这些问题。

关键词：政绩国有企业工会主动介入生产管理过程

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采用激振法的曲轴疲劳试验

中国机械工程 2008年第5期19卷 551-554页

作者：于正林曹国华姜涛长春理工大学长春130022

研究了采用激振法的汽车发动机曲轴弯曲应力疲劳强度试验,介绍了激振法的工作原理及采用该方法进行疲劳试验的试验装置设计。该方法以工控机为控制核心,采用变频调速技术,利用电机转速变化改变激振频率并调节试验载荷,用高精度的位移传... 详细信息

研究了采用激振法的汽车发动机曲轴弯曲应力疲劳强度试验,介绍了激振法的工作原理及采用该方法进行疲劳试验的试验装置设计。该方法以工控机为控制核心,采用变频调速技术,利用电机转速变化改变激振频率并调节试验载荷,用高精度的位移传感器采集数据,具有试验数据自动记录、疲劳裂纹早期判断和报警停机功能。该方法可适用于多种轴颈尺寸的曲轴试验。

关键词：曲轴疲劳试验变频调速模糊PID控制

基于改进AOV网的轻量级工作流模型研究与设计

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计算机应用 2013年第1期33卷 262-265,269页

作者：於正琳孙精科南京信息工程大学电子与信息工程学院南京210044 江苏省邮电规划设计院有限责任公司软件工程院南京210006

针对现有工作流模型在应对大型复杂系统时的不足,引入轻量级模型的概念,提出一种基于改进AOV网的轻量级工作流模型以满足大型复杂业务流程的工作流管理需求。在对模型进行详细定义与设计的同时,给出了流程调度中关键的两个算法——分支... 详细信息

针对现有工作流模型在应对大型复杂系统时的不足,引入轻量级模型的概念,提出一种基于改进AOV网的轻量级工作流模型以满足大型复杂业务流程的工作流管理需求。在对模型进行详细定义与设计的同时,给出了流程调度中关键的两个算法——分支的调度算法及汇聚的同步算法以确保流程的准确运行。通过对一个具体实例的流程建模分析,体现了模型的轻量级优势并采用图论的分析手段对模型进行静态及动态验证,证明了模型的合理性。

关键词：工作流轻量级模型 AOV网建模调度

Enteromorpha prolifera polysaccharide-Fe(Ⅲ) complex promotes intestinal development as a new iron supplement

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Science China Life Sciences 2024年

作者： Yingying Feng yuying Wu Jialu Wang zhenglin Dong Qian yu Shuangshuang Xia Chunxue Liu Haihua Wang Xin Wu Tianjin Institute of Industrial Biotechnology Chinese Academy of Sciences CAS Key Laboratory of Agro-ecological Processes in Subtropical Region Institute of Subtropical Agriculture Chinese Academy of Sciences ANYOU Biotechnology Group Co.Ltd Qingdao Seawin Biotech Group Co. Ltd

Iron is a crucial micronutrient, and its deficiency can have detrimental effects on the health of infants. Dietary polysaccharide-iron(Ⅲ) complexes(PICs) are promising for addressing iron deficiency due to their minimal adverse reactions and high iron absorption rate. This study aimed to investigate the effects of dietary Enteromorpha prolifera polysaccharide-Fe(Ⅲ) complex(EP-Fe) on newborns, using 3-day weaned piglets as the iron-deficiency model. Results showed that EP-Fe improved iron levels and promoted intestinal development in piglets. Transcriptome sequencing revealed that EP-Fe increased the survival of intestinal epithelial cells under hypoxia by upregulating the expression of genes that promote the development of the vascular system. Additionally, EP-Fe enhanced the mucosal barrier functions by inhibiting myosin light chain kinase(MLCK)/phosphorylated myosin light chain(p-MLC)signaling pathway to increase the expression of intestinal tight junction proteins. Furthermore, the 16S rRNA gene sequencing of gut microbiota showed that EP-Fe promoted the enrichment of Bacteroides＿fragilis and other gut microbes that can metabolize carbohydrates. In conclusion, EP-Fe is an effective iron supplement for newborns, and it can be developed as a comprehensive nutritional supplement.

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