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Novel intelligent reasoning system for tool wear prediction and parameter optimization in intelligent milling

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Advances in Manufacturing 2024年第1期12卷 76-93页

作者： Long-Hua Xu chuan-Zhen huang Zhen Wang Han-Lian Liu Shui-Quan huang Jun Wang School of Mechanical Engineering Yanshan UniversityQinhuangdao066004HebeiPeople’s Republic of China Center for Advanced Jet Engineering Technologies(CaJET) Key Laboratory of High-efficiency and Clean Mechanical Manufacture(Ministry of Education)National Experimental Teaching Demonstration Center for Mechanical Engineering(Shandong University)School of Mechanical EngineeringShandong UniversityJinan250061People’s Republic of China Institute of Manufacturing Technology Guangdong University of TechnologyGuangzhou510006People’s Republic of China

Accurate intelligent reasoning systems are vital for intelligent *** this study,a new intelligent reasoning system was developed for milling processes to accurately predict tool wear and dynamically optimize machining *** developed system consists of a self-learning algorithm with an improved particle swarm optimization(IPSO)learning algorithm,prediction model determined by an improved case-based reasoning(ICBR)method,and optimization model containing an improved adaptive neural fuzzy inference system(IANFIS)and *** results showed that the IPSO algorithm exhibited the best global convergence *** ICBR method was observed to have a better performance in predicting tool wear than standard CBR *** IANFIS model,in combination with IPSO,enabled the optimization of multiple objectives,thus generating optimal milling *** paper offers a practical approach to developing accurate intelligent reasoning systems for sustainable and intelligent manufacturing.

关键词： Improved particle swarm optimization(IPSO)algorithm Improved case-based reasoning(ICBR)method Adaptive neural fuzzy inference system(ANFIS)model Tool wear prediction Intelligent manufacturing

Resonant Beam Communications:A New Design Paradigm and Challenges

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Journal of Communications and Information Networks 2024年第1期9卷 80-87页

作者： Yuanming Tian Dongxu Li chuan huang Qingwen Liu Shengli Zhou Future Network of Intelligence Institute and School of Science and Engineering the Chinese University of Hong KongShenzhen 518172China School of Science and Engineering and the Future Network of Intelligence Institute the Chinese University of Hong KongShenzhen 518172China College of Electronics and Information Engineering Tongji UniversityShanghai 201804China Department of Electrical and Computer Engineering University of ConnecticutStorrsCT 06250USA

Resonant beam communications (RBCom), which adopts oscillating photons between two separate retroreflectors for information transmission, exhibits potential advantages over other types of wireless optical communications (WOC). However, echo interference generated by the modulated beam reflected from the receiver affects the transmission of the desired information. To tackle this challenge, a synchronization-based point-to-point RBCom system is proposed to eliminate the echo interference, and the design for the transmitter and receiver is discussed. Subsequently,the performance of the proposed RBCom is evaluated and compared with that of visible light communications(VLC)and free space optical communications (FOC). Finally, future research directions are outlined and several implementation challenges of RBCom systems are highlighted.

关键词： resonant beam communications(RBCom) wireless optical communications(WOC) echo interference elimination mobility multiple access

Exploring the impact of pericentric inversion of chromosome 9 on fertility in sperm donors

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Asian Journal of Andrology 2024年第3期26卷 302-307页

作者： Qian Liu Wen-Jun Zhou Zeng-Hui huang Xiu-Hai huang Jian Wu Xi-Ren Ji Xue-Feng Luo Yu-Ling Tang Rui-Jun Wang Li-Qing Fan chuan huang Wen-Bing Zhu Institute of Reproductive and Stem Cell Engineering Basic Medicine CollegeCentral South UniversityChangsha 410013China Clinical Research Center for Reproduction and Genetics in Hunan Province Reproductive and Genetic Hospital of CITIC-XiangyaChangsha 410005China

Pericentric inversion of chromosome 9(inv[9])is a common chromosomal structural variant,but its impact on clinical outcomesremains *** screening criteria of sperm banks are rarely mentioned to individuals with inv(9).In this study,we evaluatedthe fertility of sperm donors with inv(9)who met eligibility criteria for sperm banks(inv[9]-eligible donors).From March 2004 toMay 2022,chromosomal analysis of 16124 sperm donors at CITIC-Xiangya Human Sperm Bank in Hunan Province(Changsha,China)found that 251(1.6%)had chromosome variations,with inv(9)being the most prevalent at 1.1%.All 169 inv(9)-eligibledonors were contacted to collect fertility outcome data,along with 206 eligible donors without inv(9)as *** addition,semen samples from inv(9)-eligible donors and eligible donors underwent assessments of sperm fluorescence in situ hybridization(FISH),mitochondrial membrane potential,DNA fragmentation index,acrosome integrity,reactive oxygen species(ROS),andsperm *** showed that inv(9)did not significantly increase reproductive risks *** detecting ROSlevel differences,the clinical impact may be *** study provides new data on the inv(9)population that can serveas a valuable reference for decision-making by sperm banks as well as for genetic counseling and clinical guidance for individualscarrying inv(9)variant.

关键词： male fertility pericentric inversion of chromosome 9 sperm bank sperm functional parameters

Research on Automatic Test System of Engine Blade Natural Frequency

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第4期41卷 476-487页

作者： LU Yonghua LIU Jingjing YANG Haibo huang chuan MA Zhicheng College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and AstronauticsNanjing 210016P.R.China College of Mechanical Engineering Nanjing Institute of Industry TechnologyNanjing 210016P.R.China

Blades are one of the important components on aircraft *** they break due to vibration failure,the normal operation of the entire engine will be ***,it is necessary to measure their natural frequency before installing them on the engine to avoid *** present,most blade vibration testing systems require manual operation by operators,which has high requirements for operators and the testing process is also very ***,the testing efficiency is low and cannot meet the needs of efficient *** solve the current problems of low testing efficiency and high operational requirements,a high-precision and high-efficiency automatic test system is *** testing accuracy of this system can reach ±1%,and the testing efficiency is improved by 37% compared to manual ***,the influence of compression force and vibration exciter position on natural frequency test is analyzed by amplitude-frequency curve,so as to calibrate servo cylinder and fourdimensional motion ***,the sine wave signal is used as the excitation to sweep the blade linearly,and the natural frequency is determined by the amplitude peak in the frequency ***,the accuracy experiment and efficiency experiment are carried out on the developed test system,whose results verify its high efficiency and high precision.

关键词： blade vibration failure natural frequency automatic test system

基于臭气测定值的渗滤液恶臭浓度机器学习预判模型

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环境科学学报 2024年第4期44卷 440-448页

作者：贺子君黄川江远琰重庆大学环境与生态学院重庆400044 重庆大学煤矿灾害动力与控制国家重点实验室重庆400044

为了评估生活垃圾运输过程中,发酵垃圾渗滤液中气味浓度的变化.采用控温发酵对含水量不同的渗滤液样本进行处理,并应用仪器测量与人工嗅辨相结合的方法来确定气味浓度.结果表明,仪器测量结果与人工嗅辨值之间存在显著的相关性(r=0.916)... 详细信息

为了评估生活垃圾运输过程中,发酵垃圾渗滤液中气味浓度的变化.采用控温发酵对含水量不同的渗滤液样本进行处理,并应用仪器测量与人工嗅辨相结合的方法来确定气味浓度.结果表明,仪器测量结果与人工嗅辨值之间存在显著的相关性(r=0.916),从而验证了所采用方法的有效性.进一步地,研究分析了水分含量、温度和发酵时间对气味浓度的具体影响.通过比较随机森林、XGboost和LightGBM等先进机器学习模型的性能,使用MAE、MSE、MAPE等评价指标后,确认随机森林模型在预测气味浓度方面的优越性.这些结果为理解和控制垃圾处理过程中的气味扩散提供了实用的参考,并为机器学习技术在环境科学研究中的应用奠定了基础.

关键词：臭气测定值渗滤液机器学习随机森林

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战争、文学与加拿大国家形象建构——以《将军们寿终正寝》为例

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浙江外国语学院学报 2024年第3期 101-107页

作者：黄川国防科技大学外国语学院江苏南京210039

加拿大作家查尔斯·耶鲁·哈里森的《将军们寿终正寝》是一部反战小说,它采取与经典作品《西线无战事》类似的现实主义视角展现了一战的血腥与残酷,但同时又使用非线性叙事等现代主义手法来颠覆之前的战争书写模式,为此后的加拿大战争... 详细信息

加拿大作家查尔斯·耶鲁·哈里森的《将军们寿终正寝》是一部反战小说,它采取与经典作品《西线无战事》类似的现实主义视角展现了一战的血腥与残酷,但同时又使用非线性叙事等现代主义手法来颠覆之前的战争书写模式,为此后的加拿大战争文学创作提供了重要参考借鉴。作为加拿大早期反战文学的重要作品,这部小说却在发行后逐渐湮没无闻,其根本原因在于它表达了对战争中的理想主义和英雄主义的质疑,而这种怀疑主义精神直接冲击了彼时加拿大所建构的独立自主的国家形象。本文从小说语言、叙事等方面开展内部研究,再从加拿大社会、政治、历史等方面开展外部研究,进而展现作品的价值和意义,揭示战争、文学与国家形象建构之间的深层关系。

关键词：查尔斯·耶鲁·哈里森《将军们寿终正寝》怀疑主义国家形象

大型圆预制沉箱钢筋整体绑扎吊装技术研究与应用

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港口航道与近海工程 2024年第4期61卷 97-101页

作者：黄川中交第二航务工程勘察设计院有限公司湖北武汉430101

为解决传统钢筋绑扎吊装中作业精度差、工序效率低、安全风险大、作业质量不可控等问题,本文以广东省茂名市某开敞海域沉箱码头施工为依托,聚焦于预制沉箱钢筋绑扎吊装施工重难点开展了系列研究,提出了一种大型圆预制沉箱钢筋整体绑扎... 详细信息

为解决传统钢筋绑扎吊装中作业精度差、工序效率低、安全风险大、作业质量不可控等问题,本文以广东省茂名市某开敞海域沉箱码头施工为依托,聚焦于预制沉箱钢筋绑扎吊装施工重难点开展了系列研究,提出了一种大型圆预制沉箱钢筋整体绑扎吊装技术。本文对该技术的结构体系、受力、施工工况进行分析计算,优化了预制圆沉箱钢筋绑扎工艺,保障了施工质量安全,为预制沉箱钢筋绑扎吊装施工提出了新思路。

关键词：预制沉箱钢筋整体绑扎钢筋整体吊装

基于高分二号和面向对象方法的多分类器露天矿产越界开采面识别研究

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中国矿业 2024年第9期33卷 94-100页

作者：刘少宇刘丽宋永飞黄川宁夏回族自治区国土资源调查监测院宁夏银川750002 北方民族大学宁夏银川750030

矿产资源开发与利用对内陆经济欠发达省份具有十分重要的经济支撑作用,合理开发利用矿产资源是坚持可持续发展的关键之道。宁夏回族自治区矿产资源分布广泛,但以越界开采为代表的违法开采行为制约着当地经济的发展。传统的巡查上报和群... 详细信息

矿产资源开发与利用对内陆经济欠发达省份具有十分重要的经济支撑作用,合理开发利用矿产资源是坚持可持续发展的关键之道。宁夏回族自治区矿产资源分布广泛,但以越界开采为代表的违法开采行为制约着当地经济的发展。传统的巡查上报和群众举报方式使得大范围越界开采信息获取困难,而遥感数据因其广泛性和实时性被认为是监测越界开采行为的有效监管方式。本文以相关数据和高分二号影像为基础,采用面向对象方法对影像进行分割,提取地块的成像光谱和空间纹理统计特征,利用分类与回归树、随机森林和支持向量机等机器学习的分类算法,对露天矿产的越界开采面进行识别。统计结果显示,三类分类器的识别总精度均在60%以上,其中,随机森林分类器的识别效果最优,可达75%;验证结果显示,越界开采识别均存在超量分类的情况,在实际应用中应结合矿业权数据对目标区域进行进一步筛选。本文利用遥感卫星影像对越界开采面进行识别研究,极大提高了矿山执法的工作效率,推动矿产资源可持续开发利用和矿山环境保护工作的开展。

关键词：越界开采遥感识别机器学习分类算法矿产研究

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华容某灌溉涵闸金属结构设备安装工艺研究

海河水利 2024年第7期 49-51页

作者：黄传学华容水利水电建筑工程有限公司湖南华容414200

涵闸闸门及启闭机安装属于涵闸施工重要工序,存在吊装难度大、安装精度要求高等诸多难题。以华容县某农业灌溉水闸金属结构设备安装为例,重点阐述闸门、启闭机、拦污栅安装工艺流程和施工质量控制要点,针对埋件安装精度难以控制、变形... 详细信息

涵闸闸门及启闭机安装属于涵闸施工重要工序,存在吊装难度大、安装精度要求高等诸多难题。以华容县某农业灌溉水闸金属结构设备安装为例,重点阐述闸门、启闭机、拦污栅安装工艺流程和施工质量控制要点,针对埋件安装精度难以控制、变形问题、交叉作业等提出一系列技术措施。该水闸投入运行后启闭灵活、安全稳定,各项指标符合设计规范要求。该安装工艺科学有效,为类似水闸金属结构设备安装施工提供一定的参考。

关键词：后三峡涵闸施工闸门安装启闭机施工技术