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| 1 | Adaptive decision-level fusion strategy for the fault diagnosis of axial piston pumps using multiple channels of vibration signals显示文摘An axial piston pump is a key component that plays the role of the 'heart' in hydraulic systems. The pump failure will lead to an unexpected breakdown of the entire hydraulic system or even economic loss and catastrophic safety consequences. Several vibration-based machine learning methods have been developed to detect and diagnose faults of axial piston pumps. However,most of these intelligent diagnosis methods use single-sensor vibration data to monitor the pump health states. Additionally, the diagnostic accuracy is unacceptable in most situations due to the complex pump structure and limited sensor information.Therefore, this study proposes a multi-sensor fusion method to improve the fault diagnosis performance of axial piston pumps.The convolutional neural network receives three channels of vibration data and makes the final diagnosis through information fusion at the decision level. The proposed decision fusion method is evaluated on the classification task of leakage levels of an actual axial piston pump. The experimental results show that the proposed method improves the classification accuracy by adjusting the probability distribution of classification according to the learned weight matrix. | CHAO Qun GAO HaoHan TAO JianFeng WANG YuanHang ZHOU Jian LIU ChengLiang | 2022 | Science China(Technological Sciences)2022，65，2： | 2 |
| 2 | Fault diagnosis of axial piston pumps with multi-sensor data and convolutional neural network显示文摘Axial piston pumps have wide applications in hydraulic systems for power transmission.Their condition monitoring and fault diagnosis are essential in ensuring the safety and reliability of the entire hydraulic system.Vibration and discharge pressure signals are two common signals used for the fault diagnosis of axial piston pumps because of their sensitivity to pump health conditions.However,most of the previous fault diagnosis methods only used vibration or pressure signal,and literatures related to multi-sensor data fusion for the pump fault diagnosis are limited.This paper presents an end-to-end multi-sensor data fusion method for the fault diagnosis of axial piston pumps.The vibration and pressure signals under different pump health conditions are fused into RGB images and then recognized by a convolutional neural network.Experiments were performed on an axial piston pump to confirm the effectiveness of the proposed method.Results show that the proposed multi-sensor data fusion method greatly improves the fault diagnosis of axial piston pumps in terms of accuracy and robustness and has better diagnostic performance than other existing diagnosis methods. | Qun CHAO Haohan GAO Jianfeng TAO Chengliang LIU Yuanhang WANG Jian ZHOU | 2022 | Frontiers of Mechanical Engineering2022，17，3： | 2 |
| 3 | Thermo-responsive imprinted hydrogel with switchable sialic acid recognition for selective cancer cell isolation from blood显示文摘In this work,a sialic acid(SA)-imprinted thermo-responsive hydrogel layer was prepared for selective capture and release of cancer cells.The SA-imprinting process was performed at 37℃ using thermo-responsive functional monomer,thus generating switchable SA-recognition sites with potent SA binding at 37℃and weak binding at a lower temperature(e.g.,25℃).Since SA is often overexpressed at the glycan terminals of cell membrane proteins or lipids,the SA-imprinted hydrogel layer could be used for selective cancer cell recognition.Our results confirmed that the hydrogel layer could efficiently capture cancer cells from not only the culture medium but also the real blood samples.In addition,the captured cells could be non-invasively released by lowing the temperature.Considering the non-invasive processing mode,considerable capture efficiency,good cell selectivity,as well as the more stable and durable SA-imprinted sites compared to natural antibodies or receptors,this thermo-responsive hydrogel layer could be used as a promising and general platform for cell-based cancer diagnosis. | Yue Ma Yimei Yin Li Ni Haohan Miao Yingjia Wang Cheng Pan Xiaohua Tian Jianming Pan Tianyan You Bin Li Guoqing Pan | 2021 | Bioactive Materials2021，6，5： | 1 |
| 4 | Systematic Study of Experimental Fusion Barrier Based on Wong Formula显示文摘Coulomb barrier is the critical point between repulsive Coulomb potential and attractive nuclear potential in central collisions.Nuclear force plays the decisive role in inner barrier region,and the external barrier region is dominated by the Coulomb force.This barrier is usually named as fusion barrier(for light and medium mass heavyion systems)or capture barrier(heavy systems)when taking into account other effects,such as the quasi-fission or fission. | WEN Peiwei LIN Chengjian JIA Huiming CUI Danteng YANG Feng MA Nanru SUN Lijie WANG Dongxi ZHONG Fupeng SUN Haohan YANG Lei XU Xinxing | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 5 | MUSTA:MUltilayer Silicon Telescope Array for Study of Elastic Scattering and Breakup Reaction of Weakly Bound Nuclei at Energy near Coulomb Barrier显示文摘Nowadays the reaction mechanism study of weakly bound nuclei has been one of the frontier problems of nuclear physics.For weakly bound nucleus,the nuclear force and Coulomb force is so weak that in the process of interaction with target nucleus,weakly bound nucleus may breakup into small pieces easily,and such breakup effect can bring some unconventional physical phenomena to weakly bound nucleus near the drip line:such as halo/skin structure,the disappearance of old magic number and the appearance of new magic number,etc. | MA Nanru LIN Chengjian JIA Huiming CUI Danteng YANG Feng WEN Peiwei WANG Dongxi SUN Lijie ZHONG Fupeng SUN Haohan YANG Lei XU Xinxing | 2018 | 中国原子能科学研究院年报2018，，1： | 0 |
| 6 | Divergent chondro/osteogenic transduction laws of fibrocartilage stem cell drive temporomandibular joint osteoarthritis in growing mice显示文摘The anterior disc displacement(ADD)leads to temporomandibular joint osteoarthritis(TMJOA)and mandibular growth retardation in adolescents.To investigate the potential functional role of fibrocartilage stem cells(FCSCs)during the process,a surgical ADDTMJOA mouse model was established.From 1 week after model generation,ADD mice exhibited aggravated mandibular growth retardation with osteoarthritis(OA)-like joint cartilage degeneration,manifesting with impaired chondrogenic differentiation and loss of subchondral bone homeostasis.Lineage tracing using Gli1^(-)CreER^(+);Tm^(fl/-)mice and Sox9-CreER^(+);Tm^(fl/-)mice showed that ADD interfered with the chondrogenic capacity of Gli1+FCSCs as well as osteogenic differentiation of Sox9+lineage,mainly in the middle zone of TMJ cartilage.Then,a surgically induced disc reposition(DR)mouse model was generated.The inhibited FCSCs capacity was significantly alleviated by DR treatment in ADD mice.And both the ADD mice and adolescent ADD patients had significantly relieved OA phenotype and improved condylar growth after DR treatment.In conclusion,ADD-TMJOA leads to impaired chondrogenic progenitor capacity and osteogenesis differentiation of FCSCs lineage,resulting in cartilage degeneration and loss of subchondral bone homeostasis,finally causing TMJ growth retardation.DR at an early stage could significantly alleviate cartilage degeneration and restore TMJ cartilage growth potential. | Ruiye Bi Qianli Li Haohan Li Peng Wang Han Fang Xianni Yang Yiru Wang Yi Hou Binbin Ying Songsong Zhu | 2023 | International Journal of Oral Science2023，15，3： | 0 |
| 7 | Comparative metabolomics provides novel insights into the basis of petiole color differences in celery(Apium graveolens L.)显示文摘Plant metabolites are important for plant development and human health.Plants of celery(Apium graveolens L.)with different-colored petioles have been formed in the course of long-term evolution.However,the composition,content distribution,and mechanisms of accumulation of metabolites in different-colored petioles remain elusive.Using ultra-high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS),1159 metabolites,including 100 lipids,72 organic acids and derivatives,83 phenylpropanoids and polyketides,and several alkaloids and terpenoids,were quantified in four celery cultivars,each with a different petiole color.There were significant differences in the types and contents of metabolites in celery with different-colored petioles,with the most striking difference between green celery and purple celery,followed by white celery and green celery.Annotated analysis of metabolic pathways showed that the metabolites of the different-colored petioles were significantly enriched in biosynthetic pathways such as anthocyanin,flavonoid,and chlorophyll pathways,suggesting that these metabolic pathways may play a key role in determining petiole color in celery.The content of chlorophyll in green celery was significantly higher than that in other celery cultivars,yellow celery was rich in carotenoids,and the content of anthocyanin in purple celery was significantly higher than that in the other celery cultivars.The color of the celery petioles was significantly correlated with the content of related metabolites.Among the four celery cultivars,the metabolites of the anthocyanin biosynthesis pathway were enriched in purple celery.The results of quantitative real-time polymerase chain reaction(q RT-PCR)suggested that the differential expression of the chalcone synthase(CHS)gene in the anthocyanin biosynthesis pathway might affect the biosynthesis of anthocyanin in celery.In addition,HPLC analysis revealed that cyanidin is the main pigment in purple celery.This study explored the differences in the types and contents of metabolites in celery cultivars with different-colored petioles and identified key substances for color formation.The results provide a theoretical basis and technical support for genetic improvement of celery petiole color. | Mengyao LI Jie LI Haohan TAN Ya LUO Yong ZHANG Qing CHEN Yan WANG Yuanxiu LIN Yunting ZHANG Xiaorong WANG Haoru TANG | 2022 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022，23，4： | 0 |
| 8 | Evolution of precipitate and precipitate/matrix interface in Al-Zn-Mg-Cu(-Ag)alloys显示文摘Evolution of precipitate and precipitate/matrix interface in artificially aged Al-Zn-Mg-Cu(-Ag)alloys has been systematically studied.In the early stage of ageing,Ag,as a fast diffuser,can promote the formation of solute pairs and small clusters.Solute clusters are further demonstrated to be able to act as precursors forη’precipitates by in-situ STEM heating.With prolonged ageing time,the precipitate/matrix interface evolves from the Zn-dominated interface between early-stageη’and Al matrix to the Zn and Mg co-segregatedη’/Al andη_(2)/Al interfaces.Theη’/Al interfacial layers are shown to precede the formation ofη’,while theη_(2)/Al interfaces are found to be closely related to the thickening process ofη_(2)and the involved particular atomic movements are specified.Experimental observations and DFT calculations re-veal that forη’andη_(2),Ag can dissolve into the precipitate as well as locate at the precipitate/matrix interface without showing preference.For Cu,its dissolution in the precipitate and segregation on the interface mainly occur forη_(2)rather thanη’.The incorporation of Ag and Cu does not change the defined precipitate structure. | Xingpu Zhang Zhongkang Han Liangliang Xu Haohan Ni Xiaojuan Hu Haofei Zhou Yu Zou Jiangwei Wang | 2023 | Journal of Materials Science & Technology2023，，7： | 0 |
| 9 | Joining SiO_(2)based ceramics:recent progress and perspectives显示文摘Nowadays,SiO_(2)based material is one of the widest used materials in optical,microelectromechanical system,aerospace and some other industries.In practical application,SiO_(2)based materials are required to be joined with themselves or other heterogeneous materials to assemble products with various functions.And the joining quality directly affects the mechanical performances and functional properties of assembled products.Though many researchers studied different joining technologies,explored the microstructure of joining interface and tested after-joining properties,a review that summarizes the recent cutting-edge researches and development tendency of joining technologies for SiO_(2)based ceramics is still absent.Therefore,according to different applications and requirements,this review summarizes the widely used joining technologies and discusses corresponding joining mechanisms,current research progress and suitable applications.Due to the wide applications in specific industry,laser welding,anodic bonding and wafer bonding are discussed in detail.Further,brazing,the widest used method in SiO_(2)joining,has been elaborated deeply in its wetting mechanism,residual stress control,interfacial microstructure and mechanical performance aspects.In the end,this review proposed the future development trends of SiO_(2)ceramics joining,aiming at offering a full-view of potential improvements in SiO_(2)ceramic joining technologies. | Haohan Wang Jinghuang Lin Junlei Qi Jian Cao | 2022 | Journal of Materials Science & Technology2022，，13： | 0 |
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