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Judging the Normativity of PAF Based on TFN and NAN

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Journal of Shanghai Jiaotong university(Science) 2020年第5期25卷 569-577页

作者： LI Zhiqiang BAO Jinsong liu tianyuan WANG Jiacheng College of Mechanical Engineering Donglma UniversityShanghai 201600China

The normativity of workers'actions during producing has a great impact on the quality of the products and the safety of the operation *** studies mainly focused on the normativity of each single producing action instead of considering the normativity of continuous producing actions,which is defined as producing action flow(PAF)in this paper,during operation *** this issue,a normativity judging method based on two-LSTM fusion network(TFN)and normativity-aware attention network(NAN)is ***,TFN is designed to detect and recognize the producing actions based on skeleton sequences of a worker during complete operation process,and PAF data in sequential form are *** is built to allocate difTerent levels of attention to each producing action within the sequence of *** by this means,an efficient normativity judging is *** combustor surface cleaning(CSC)process of rocket engine is taken as the experimental case,and the CSC-Action2D dataset is established for *** results show the high performance of TFN and *** the effectiveness of the proposed method for PAF normativity judging.

关键词： producing action normativity sequential model attention mechanism deep learning

Data-Driven Predictive Maintenance Approach for Spinning Cyber-Physical Production System

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Journal of Shanghai Jiaotong university(Science) 2020年第4期25卷 453-462页

作者： FAROOQ Basit BAO Jinsong LI Jie liu tianyuan YIN Shiyong College of Mechanical Engineering Donghua UniversityShanghai 201600China

The fundamental process of predictive maintenance is prognostics and health management,and it is the tool resulting in the development of many algorithms to predict the remaining useful life of industrial equipment.A new data-driven predictive maintenance and an architectural impulse,based on a regularized deep neural network using predictive analytics,are proposed successfully for ring spinning *** paradigm shift in computational infrastructures enormously puts pressure on large-scale linear and non-linear automated assembly systems to eliminate and cut down unscheduled downtime and unexpected *** sensor network designed for the scheduling process comprises different critical components of the same spinning machine frames containing more than thousands of spindles attached to *** established a genetic algorithm based on multi-sensor performance assessment and prediction procedure for the spinning *** show that it operates with a relatively less amount of training data sets but takes advantage of larger volumes of *** integrated system aims to prognosticate abnormalities,disturbances,and failures by providing condition-based monitoring for each component,which makes it more accurate to locate the defined component failures in the current spinning spindles by using smart agents during the operations through the neural sensing network.A case study has provided to demonstrate the feasibility of the proposed predictive model for highly dynamic,high-speed textile spinning system through real-time data sensing and signal processing via the industrial Internet of Things.

关键词： predictive maintenance prognostics and health management smart spinning manufacturing cyberphysical production system

IL-6受体拮抗剂改善心肌梗死后室性心律失常的作用及机制初探

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中华心血管病杂志 2024年第7期52卷 791-797页

作者：邱琴芳彭晨李泽衍许骁席浩淞刘天缘谭伍平黄佳星周丽平王悦怡江洪武汉大学人民医院心血管内科、自主神经调控湖北省重点实验室、武汉大学心脏自主神经研究中心、武汉大学心血管病研究所、心血管病湖北省重点实验室武汉430060

目的:探讨白细胞介素-6(IL-6)受体拮抗剂托珠单抗(TCZ)对Sprague-Dawley大鼠心肌梗死(MI)后室性心律失常的改善作用及潜在机制。方法:选取成年雄性Sprague-Dawley大鼠32只,按照随机数表法分为4组:假手术组、TCZ组、MI组和MI+TCZ组,每组... 详细信息

目的:探讨白细胞介素-6(IL-6)受体拮抗剂托珠单抗(TCZ)对Sprague-Dawley大鼠心肌梗死(MI)后室性心律失常的改善作用及潜在机制。方法:选取成年雄性Sprague-Dawley大鼠32只,按照随机数表法分为4组:假手术组、TCZ组、MI组和MI+TCZ组,每组8只。MI组和MI+TCZ组大鼠通过结扎冠状动脉左前降支建立MI模型,假手术组和TCZ组大鼠仅穿线不结扎。TCZ组和MI+TCZ组大鼠于建模成功或假手术后在左侧颈上神经节注射TCZ,假手术组和MI组给予等量生理盐水注射。建模后24 h,记录各组大鼠心电图,计算心率变异性(包括低频功率、高频功率、低频功率/高频功率比值)和QT间期、QTc间期,并测量左心室有效不应期和室性心律失常诱发数。通过2,3,5-氯代三苯基四氮唑染色和HE染色观察各组大鼠心肌梗死面积及组织改变。通过实时荧光定量聚合酶链反应检测大鼠颈上神经节中IL-6、信号转导子和转录激活子(STAT)3的信使RNA(mRNA)及MI周边区组织钾电压门控通道亚家族D成员2(potassium voltage-gated channel subfamily D member 2,Kcnd2)的mRNA表达水平。采用免疫荧光染色检测大鼠颈上神经节的即刻早期基因的表达。结果:与假手术组和MI+TCZ组大鼠相比,MI组大鼠低频功率和低频功率/高频功率比值较高、QT间期与QTc间期较长、室性心律失常诱发数较多,而高频功率较低、左心室有效不应期较短( P均<0.05)。2,3,5-氯代三苯基四氮唑染色和HE染色显示,假手术组和TCZ组大鼠心肌组织结构正常,MI组大鼠心肌损伤严重,MI+TCZ组与MI组相比心肌损伤较轻。实时荧光定量聚合酶链反应显示,与假手术组和MI+TCZ组相比,MI组大鼠颈上神经节中 IL-6、STAT3的mRNA表达水平较高,心肌Kcnd2的mRNA表达水平较低( P均<0.05)。免疫荧光染色显示,MI组大鼠颈上神经节中即刻早期基因含量比假手术组和MI+TCZ组大鼠高( P均<0.05)。结论:IL-6受体拮抗剂可能通过抑制IL-6/STAT3信号通路降低MI后颈上神经节的神经活性,减轻心肌损伤,抑制室性心律失常发生。

关键词：心肌梗死白细胞介素-6受体拮抗剂室性心律失常交感神经系统神经免疫神经调控

Generation Approach of Human-Robot Cooperative Assembly Strategy Based on Transfer Learning

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Journal of Shanghai Jiaotong university(Science) 2022年第5期27卷 602-613页

作者： LÜQibing liu tianyuan ZHANG Rong JIANG Yanan XIAO Lei BAO Jingsong College of Mechanical Engineering Donghua UniversityShanghai201620China

In current small batch and customized production mode,the products change rapidly and the personal demand increases ***-robot cooperation combining the advantages of human and robot is an effective way to solve the complex ***,the poor reusability of historical assembly knowledge reduces the adaptability of assembly system to different *** cross-domain strategy transfer,we propose a human-robot cooperative assembly(HRCA)framework which consists of three main modules:expression of HRCA strategy,transferring of HRCA strategy,and adaptive planning of motion *** on the analysis of subject capability and component properties,the HRCA strategy suitable for specific tasks is *** the reinforcement learning is established to optimize the parameters of target encoder for feature *** classification and segmentation,the actor-critic model is built to realize the adaptive path planning with progressive neural ***,the proposed framework is verified to adapt to the multi-variety environment,for example,power lithium batteries.

关键词： human-robot cooperation strategy transfer reinforcement learning progressive neural network power lithium battery

Optimum process conditions for preparation of Cu-en/AP composite microspheres by electrostatic spray method based on ANSYS(Fluent) simulation

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火炸药学报 2024年

作者： Lei liu tianyuan Hu MingJun Song Wei Ji National Academy of Defense Technology， Southwest University of Science and Technology 201 Research Institute， Sixth Research Institute of China Aerospace Science and Industry Corporation

This study employed ANSYS (Fluent) to set up an orthogonal experimental design for simulating the preparation of AP/Cu-en composite microspheres via the electrostatic spray method. Additionally， a controlled variable approach was used to simulate the influence of flow rate， solvent ratio， and solid mass on the experimental results. The purpose is to study the optimal process conditions for preparing Cu-en/AP composite microspheres through electrostatic spray and to reveal the effects of changes in droplet properties and flow rate during the electrostatic spray process on the experimental *** results indicate that under the following process conditions: a flow rate of 2.67e-3 kg/s， acetone to deionized water ratio of 1.5:1， and a solid mass of 200 mg， the theoretical diameter of the composite microspheres can reach the nanoscale. These microspheres exhibit high velocity within the electric field， there was no significant deviation in the motion trajectory. The particle diameter decreases with the increase of *** the process，This decreasing trend begins to moderate when the flow rate is 1e-3kg/s. When increasing the solvent ratio (higher acetone content)，at the begging，the particle diameter is reduced， followed by an increase. An increase in solid mass also leads to reduced in particle diameter. At a solid mass of approximately 220 mg， the particle diameter starts to increase linearly. It will be explained in detail in this paper.

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Research on improving the system of account rate in occupational pension

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International English Education Research 2015年第9期 73-75页

作者： Hou lanlan liu tianyuan Shanghai University of Engineering Science Shanghai 201620 China

In the reform of government organizations and institutions of China, we put forward the establishment of personal account system in occupational pension, and the introduction of the ＂account＂ management model of the non real account accumulation. This paper analyzes the current situation of personal accounts in our country, and puts forward that the account rate of bank deposit can not resist inflation, and can not reflect the real return rate of China＇s pension funds, which is not conducive to the preservation and appreciation of personal account funds. On the basis of the above, the paper puts forward that the account rate should not only consider the level of economic development and inflation, but also to adapt to the financial payment ability, and establish the personal account risk reserve fund system and other improvement measures, and strive to achieve the sustainable development of the personal account system.

关键词： occupational pension personal accounts account rate

Highly efficient 1D p-Te/2D n-Bi_(2)Te_(3) heterojunction self-driven broadband photodetector

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Nano Research 2024年第3期17卷 1864-1874页

作者： Chenchen Zhao Dongbo Wang Jiamu Cao Zhi Zeng Bingke Zhang Jingwen Pan Donghao liu Sihang liu Shujie Jiao tianyuan Chen Gang liu Xuan Fang Liancheng Zhao Jinzhong Wang School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China School of Astronautics Harbin Institute of TechnologyHarbin 150001China Center for High Pressure Science and Technology Advanced Research Shanghai 201203China State Key Laboratory of High Power Semiconductor Lasers Changchun University of Science and TechnologyChangchun 130022China

Broadband photodetectors with self-driven functions have attracted intensive scientific interest due to their low energy consumption and high optical ***,high-performance broadband self-driven photodetectors are still a significant challenge due to the complex fabrication processes,environmental toxicity,high production costs of traditional 3D semiconductor materials and sharply raised contact resistance,severe interfacial recombination of 2D materials and 2D/3D mixed dimension ***,1D p-Te/2D n-Bi_(2)Te_(3) heterojunctions are constructed by the simple and low-cost hydrothermal method.1D p-Te/2D n-Bi_(2)Te_(3) devices are applied in photoelectrochemical(PEC)photodetectors,with their high performance attributed to the good interfacial contacts reducing interface *** device demonstrated a broad wavelength range(365–850 nm)with an Iph/Idark as high as *** R_(i),D^(*),and external quantum efficiency(EQE)values of the device were as high as 12.07 mA/W,5.87×10^(10) Jones,and 41.05%,respectively,which were significantly better than the performance of the prepared Bi_(2)Te_(3) and Te devices.A comparison of the freshly fabricated device and the device after 30 days showed that 1D p-Te/2D n-Bi_(2)Te_(3) had excellent stability with only 18.08%decay of *** is anticipated that this work will provide new emerging material for future design and preparation of a high-performance self-driven broadband photodetector.

关键词： topological insulating states interfacial recombination self-driven 1D p-Te/2D n-Bi_(2)Te_(3) photodetector

CSST Dense Star Field Preparation:A Framework for Astrometry and Photometry for Dense Star Field Images Obtained by the China Space Station Telescope(CSST)

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Research in Astronomy and Astrophysics 2024年第7期24卷 158-169页

作者： Yining Wang Rui Sun tianyuan Deng Chenghui Zhao Peixuan Zhao Jiayi Yang Peng Jia Huigen liu Jilin Zhou College of Electronic Information and Optical Engineering Taiyuan University of TechnologyTaiyuan 030024China School of Astronomy&Space Science Nanjing UniversityNanjing 210093China Peng Cheng Lab Shenzhen 518066China

The China Space Station Telescope(CSST)is a telescope with 2 m diameter,obtaining images with high quality through wide-field *** its first observation cycle,to capture time-domain observation data,the CSST is proposed to observe the Galactic halo across different *** data have significant potential for the study of properties of stars and ***,the density of stars in the Galactic center is high,and it is a well-known challenge to perform astrometry and photometry in such a dense star *** paper presents a deep learning-based framework designed to process dense star field images obtained by the CSST,which includes photometry,astrometry,and classifications of targets according to their light curve *** simulated CSST observation data,we demonstrate that this deep learning framework achieves photometry accuracy of 2%and astrometry accuracy of 0.03 pixel for stars with moderate brightness mag=24(i band),surpassing results obtained by traditional ***,the deep learning based light curve classification algorithm could pick up celestial targets whose magnitude variations are 1.7 times larger than magnitude variations brought by Poisson photon *** anticipate that our framework could be effectively used to process dense star field images obtained by the CSST.

关键词： techniques photometric-methods data analysis-astrometry

Multi-omic characterization of genome-wide abnormal DNA methylation reveals diagnostic and prognostic markers for esophageal squamous-cell carcinoma

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Signal Transduction and Targeted Therapy 2022年第3期7卷 896-908页

作者： Yiyi Xi Yuan Lin Wenjia Guo Xinyu Wang Hengqiang Zhao Chuanwang Miao Weiling liu Yachen liu tianyuan liu Yingying Luo Wenyi Fan Ai Lin Yamei Chen Yanxia Sun Yulin Ma Xiangjie Niu Ce Zhong Wen Tan Meng Zhou Jianzhong Su Chen Wu Dongxin Lin Department of Etiology and Carcinogenesis National Cancer Center/National Clinical Research Center/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Beijing Advanced Innovation Center for Genomics Biomedical Pioneering Innovation CenterPeking UniversityBeijing 100871China Cancer Institute Affiliated Cancer Hospital of Xinjiang Medical UniversityUrumqi 830000China School of Biomedical Engineering School of Ophthalmology and Optometry and Eye HospitalWenzhou Medical UniversityWenzhou 325011China Wenzhou Institute University of Chinese Academy of SciencesWenzhou 325000China Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine Nanjing Medical UniversityNanjing 211166China CAMS Key Laboratory of Genetics and Genomic Biology Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Sun Yat-sen University Cancer Center State Key Laboratory of Oncology in South ChinaGuangzhou 510060China

This study investigates aberrant DNA methylations as potential diagnosis and prognosis markers for esophageal squamous-cell carcinoma(ESCC),which if diagnosed at advanced stages has<30%five-year survival *** genome-wide methylation sites of 91 ESCC and matched adjacent normal tissues,we identified 35,577 differentially methylated CpG sites(DMCs)and characterized their distribution patterns.

关键词： esophageal squamous diagnosis