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  1. Article ; Online: Research on aircraft skin rivet detection technology based on the normal vector-density clustering algorithm.

    Huang, Lulu / Huang, Xiang

    The Review of scientific instruments

    2024  Volume 95, Issue 3

    Abstract: Riveting quality is crucial to an aircraft's overall aerodynamic performance and fatigue life. In order to effectively extract the point cloud of rivet heads and analyze the quality of riveting, this paper proposes a rivet flushness detection method ... ...

    Abstract Riveting quality is crucial to an aircraft's overall aerodynamic performance and fatigue life. In order to effectively extract the point cloud of rivet heads and analyze the quality of riveting, this paper proposes a rivet flushness detection method based on the normal vector-density clustering algorithm. First, initial point cloud data sampling is based on normal vectors. Then, the density clustering algorithm is employed to cluster and extract the point cloud of rivet heads. Subsequently, the obtained point cloud of rivet heads is subjected to the random sample consensus algorithm for fitting the contour and obtaining the model parameters of the rivet head. The paper introduces a quality detection metric to describe the flushness of the rivet head. Finally, the proposed method is applied to analyze the skin and theoretical model point cloud data of rivets. The results demonstrate that the proposed method yields small errors and high accuracy compared to theoretical values. The method is further employed for quality detection and analysis of rivet flushness in practical aircraft engineering. A visualization system for rivet flushness quality detection is developed to represent the results visually. This system enhances the intuitive identification of rivet detection outcomes. Therefore, the proposed method holds significant engineering application value in rivet flushness detection.
    Language English
    Publishing date 2024-03-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/5.0189065
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Z 4' 46/112: Show issues

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  2. Article ; Online: Adsorption of O

    Huang, Lulu / Liu, Wen / Xing, Xiaopeng

    Molecules (Basel, Switzerland)

    2024  Volume 29, Issue 7

    Abstract: Decades of research have illuminated the significant roles of gold/gold oxide clusters in small molecule catalytic oxidation. However, many fundamental questions, such as the actual sites to adsorb and activate ... ...

    Abstract Decades of research have illuminated the significant roles of gold/gold oxide clusters in small molecule catalytic oxidation. However, many fundamental questions, such as the actual sites to adsorb and activate O
    Language English
    Publishing date 2024-04-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules29071645
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Zs.MO 81: Show issues

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  3. Article ; Online: Reply to the letter to editor: "Gestational or non-gestational choriocarcinoma - A diagnostic dilemma".

    Huang, Lulu / Hung, Tai-Ho

    Taiwanese journal of obstetrics & gynecology

    2022  Volume 61, Issue 3, Page(s) 565

    MeSH term(s) Choriocarcinoma/diagnosis ; Choriocarcinoma, Non-gestational ; Female ; Humans ; Pregnancy ; Uterine Neoplasms/diagnosis
    Language English
    Publishing date 2022-05-20
    Publishing country China (Republic : 1949- )
    Document type Letter
    ZDB-ID 2202946-1
    ISSN 1875-6263 ; 1875-6263
    ISSN (online) 1875-6263
    ISSN 1875-6263
    DOI 10.1016/j.tjog.2022.03.032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Research on registration error compensation of large-scale measurement field based on neural network.

    Huang, Lulu / Huang, Xiang / Li, Shuanggao / Hou, Guoyi

    The Review of scientific instruments

    2023  Volume 94, Issue 6

    Abstract: The combination of large tooling size, environmental vibration, and equipment errors at the aircraft assembly site leads to errors in the enhanced reference system (ERS) point measurement information. ERS point errors directly reduce the accuracy of the ... ...

    Abstract The combination of large tooling size, environmental vibration, and equipment errors at the aircraft assembly site leads to errors in the enhanced reference system (ERS) point measurement information. ERS point errors directly reduce the accuracy of the assembly measurement field. This paper proposes ERS point error prediction and registration compensation based on the neural network to address this problem. First, the effects of equipment measurement errors and environmental vibration factors on the measurement field are studied. The ERS point error prediction model based on the neural network is established. On this basis, model evaluation is used to assess the prediction model of this paper. Then, a measurement field registration compensation model is constructed based on the neural network error results for ERS point compensation analysis. Finally, an experimental validation platform was built to predict the ERS point errors and compensate for the constructed measurement fields using the method in this paper. The experimental results show that, compared with the conventional method, the maximum registration errors in the X, Y, and Z directions are reduced from 0.0812, -0.0565, and -0.2810 to -0.0184, -0.0010, and 0.0022 mm, respectively, after compensation in this paper. The method proposed in this paper can not only predict the ERS point error state and provide a reference for designers but also guide the selection of appropriate ERS points when constructing the measurement field. The compensation method in this paper effectively reduces the measurement field registration error.
    Language English
    Publishing date 2023-10-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209865-9
    ISSN 1089-7623 ; 0034-6748
    ISSN (online) 1089-7623
    ISSN 0034-6748
    DOI 10.1063/5.0148804
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 4' 46/112: Show issues

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  5. Article: The Effect of Competence-Building Narrative on Chinese Adolescents' Persistence.

    He, Wuming / Ming, Zhu / Huang, Lulu / Chen, Tiancai

    Psychology research and behavior management

    2023  Volume 16, Page(s) 1787–1795

    Abstract: Persistence is one of the most critical aspects of learning motivation, but little attention has been paid to persistence intervention in the literature. The current study took a perspective from narrative psychology to examine the effect of narrative ... ...

    Abstract Persistence is one of the most critical aspects of learning motivation, but little attention has been paid to persistence intervention in the literature. The current study took a perspective from narrative psychology to examine the effect of narrative form on junior middle school students' ability to persist. Thirty-two students were randomly assigned to the experimental group of competence-building narrative and the control group. While all the students constructed past experiences of success and failure, those in the experimental group were prompted to think from a competence-building perspective. Then both groups solved a figure-based problem, within which the researcher recorded their number of attempts and time spent. Results showed that those who construct past success and failure from a competence-building perspective attempted more times and spent more time on the unsolvable problem.
    Language English
    Publishing date 2023-05-12
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2495093-2
    ISSN 1179-1578
    ISSN 1179-1578
    DOI 10.2147/PRBM.S404950
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Reactivity of cationic silver clusters with O

    Hu, Jin / Ma, Jun / Jin, Zhengqian / Liu, Wen / Huang, Lulu / Wang, Xuefeng / Xing, Xiaopeng

    Physical chemistry chemical physics : PCCP

    2024  Volume 26, Issue 9, Page(s) 7407–7415

    Abstract: We explored the size-dependent reactivity of ... ...

    Abstract We explored the size-dependent reactivity of Ag
    Language English
    Publishing date 2024-02-28
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d3cp05082c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The global minimum of Ag

    Liu, Wen / Huang, Lulu / Meng, Lei / Hu, Jin / Xing, Xiaopeng

    Physical chemistry chemical physics : PCCP

    2023  Volume 25, Issue 20, Page(s) 14303–14310

    Abstract: Genetic algorithms have been widely used to explore global minimum points of atomic clusters, and their incorporation ... ...

    Abstract Genetic algorithms have been widely used to explore global minimum points of atomic clusters, and their incorporation with
    Language English
    Publishing date 2023-05-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d3cp00791j
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Insight into the effect of microplastics on the adsorption and degradation behavior of thiamethoxam in agricultural soils.

    Hu, Mingfeng / Huang, Lulu / Wang, Ya / Tan, Huihua / Yu, Xiangyang

    Chemosphere

    2023  Volume 337, Page(s) 139262

    Abstract: Thiamethoxam and microplastics are both common pollutants in farmland soil; however, few studies have focused on the interaction between thiamethoxam and microplastics in soil. Here, a batch experiment and soil incubation experiment were performed to ... ...

    Abstract Thiamethoxam and microplastics are both common pollutants in farmland soil; however, few studies have focused on the interaction between thiamethoxam and microplastics in soil. Here, a batch experiment and soil incubation experiment were performed to explore the mechanism and effects of microplastics on the adsorption and degradation behaviors of thiamethoxam in soil, respectively. First, the batch experimental results indicated that the adsorption process of thiamethoxam on the microplastic/soil mixtures and soil-only systems mainly relies on chemical interactions. All sorption processes had moderate intensities of adsorption, and the sorption process occurred on the heterogeneous surface. In addition, the particle size and dose of microplastics could both affect the adsorption behavior of thiamethoxam onto microplastics/soil systems. The sorption capacity of thiamethoxam in soil decreases as the particle size of microplastics increases, but the sorption capacity increases as the dose of microplastics increases. Second, the results of the soil incubation experiment showed that the half-lives of thiamethoxam ranged from 57.7 d to 86.6 d, from 86.6 d to 173.3 d, and 115 d in the biodegradable microplastic/soil systems, nondegradable microplastic/soil systems, soil-only systems, respectively. These results indicate that biodegradable microplastics promoted the degradation of thiamethoxam, while nondegradable microplastics delayed the degradation process of thiamethoxam in soil. Overall, microplastics could change the degradation behaviors, sorption capacity and adsorption efficiency, and then affect the mobility and persistence of thiamethoxam in the soil environment. These findings contribute to understanding the influence of microplastics on the environmental fate of pesticides in the soil environment.
    MeSH term(s) Thiamethoxam ; Microplastics ; Soil ; Plastics ; Adsorption ; Soil Pollutants/analysis
    Chemical Substances Thiamethoxam (747IC8B487) ; Microplastics ; Soil ; Plastics ; Soil Pollutants
    Language English
    Publishing date 2023-06-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139262
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    Zs.A 2540: Show issues Location:
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  9. Article ; Online: Various bond interactions between NO and anionic gold clusters: a theoretical calculation.

    Liu, Wen / Huang, Lulu / Hu, Jin / Xing, Xiaopeng

    Physical chemistry chemical physics : PCCP

    2022  Volume 24, Issue 22, Page(s) 13641–13650

    Abstract: We studied the electronic and geometrical structures of ... ...

    Abstract We studied the electronic and geometrical structures of Au
    Language English
    Publishing date 2022-06-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d1cp05213f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Adsorption and Activation of O

    Huang, Lulu / Liu, Wen / Hu, Jin / Xing, Xiaopeng

    The journal of physical chemistry. A

    2022  Volume 126, Issue 33, Page(s) 5594–5603

    Abstract: We experimentally explored adsorption and activation of ... ...

    Abstract We experimentally explored adsorption and activation of O
    Language English
    Publishing date 2022-08-11
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.2c04438
    Database MEDical Literature Analysis and Retrieval System OnLINE

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