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  1. Article: Product presentation in the live-streaming context: The effect of consumer perceived product value and time pressure on consumer's purchase intention.

    Zhang, Nan

    Frontiers in psychology

    2023  Volume 14, Page(s) 1124675

    Abstract: Live streaming is conducive to consumers obtaining rich and accurate product information, by displaying products through real-time video technology. Live streaming provides a new type of product presentation method, such as showing products from ... ...

    Abstract Live streaming is conducive to consumers obtaining rich and accurate product information, by displaying products through real-time video technology. Live streaming provides a new type of product presentation method, such as showing products from different perspectives, interacting with consumers by trying the products out, and answering consumers' questions in real time. Other than the current research focus on anchors (or influencers) and consumers in live-streaming marketing, this article tried to explore the way of the product presentation and its effect and mechanism on consumers' purchase intention. Three studies were conducted. Study 1 (
    Language English
    Publishing date 2023-02-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2023.1124675
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: DNAzyme as a rising gene-silencing agent in theranostic settings.

    Zhang, Nan

    Neural regeneration research

    2022  Volume 17, Issue 9, Page(s) 1989–1990

    Language English
    Publishing date 2022-02-10
    Publishing country India
    Document type Journal Article
    ZDB-ID 2388460-5
    ISSN 1876-7958 ; 1673-5374
    ISSN (online) 1876-7958
    ISSN 1673-5374
    DOI 10.4103/1673-5374.335157
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Research on the Construction of Ideological and Political Teaching Team of College Courses Based on Competency

    Zhang Nan

    E3S Web of Conferences, Vol 245, p

    2021  Volume 03028

    Abstract: Strengthening the construction of the ideological and political teaching team in the course of ideological and political teaching in colleges and universities can improve the level of ideological and political teaching in a certain degree. In the course ... ...

    Abstract Strengthening the construction of the ideological and political teaching team in the course of ideological and political teaching in colleges and universities can improve the level of ideological and political teaching in a certain degree. In the course of curriculum ideological and political implementation, there are new requirements for the various abilities of college teachers. Under this circumstance, teachers should study and analyze the construction of college curriculum ideological and political teaching team from the perspective of competency model based on curriculum ideology and politics. This article discusses the professional quality of ideological and political course teachers under the requirements of mastering the competency model and the relevant strategies for constructing the ideological and political teaching team of college courses. This article aims to improve the level of ideological and political teaching team building in colleges and universities.
    Keywords Environmental sciences ; GE1-350
    Subject code 940
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Incomplete Multiview Nonnegative Representation Learning With Graph Completion and Adaptive Neighbors.

    Sun, Shiliang / Zhang, Nan

    IEEE transactions on neural networks and learning systems

    2024  Volume 35, Issue 3, Page(s) 4017–4031

    Abstract: Despite incomplete multiview clustering (IMC) being widely studied in the past decade, it is still difficult to model the correlation among multiple views due to the absence of partial views. Most existing works for IMC only mine the correlation among ... ...

    Abstract Despite incomplete multiview clustering (IMC) being widely studied in the past decade, it is still difficult to model the correlation among multiple views due to the absence of partial views. Most existing works for IMC only mine the correlation among multiple views from available views and ignore the importance of missing views. To address this issue, we propose a novel Incomplete Multiview Nonnegative representation learning model with Graph completion and Adaptive neighbors (IMNGA), which performs common graph learning, missing graph completion, and consensus nonnegative representation learning simultaneously. In IMNGA, the common graph on all views and the incomplete graph of each view are used to reconstruct the completed graph of the corresponding view, where the common graph satisfies the neighbor constraints of incomplete multiview data and consensus representation. IMNGA gets consensus representation by factorizing completed and incomplete graphs, where consensus representation satisfies the common graph constraint. IMNGA shows its effectiveness by outperforming other state-of-the-art methods.
    Language English
    Publishing date 2024-02-29
    Publishing country United States
    Document type Journal Article
    ISSN 2162-2388
    ISSN (online) 2162-2388
    DOI 10.1109/TNNLS.2022.3201562
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Bifurcation of bound states in the continuum in periodic structures.

    Zhang, Nan / Yan Lu, Ya

    Optics letters

    2024  Volume 49, Issue 6, Page(s) 1461–1464

    Abstract: In lossless dielectric structures with a single periodic direction, a bound state in the continuum (BIC) is a special resonant mode with an infinite quality factor (Q factor). The Q factor of a resonant mode near a typical BIC ... ...

    Abstract In lossless dielectric structures with a single periodic direction, a bound state in the continuum (BIC) is a special resonant mode with an infinite quality factor (Q factor). The Q factor of a resonant mode near a typical BIC satisfies
    Language English
    Publishing date 2024-03-14
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.514532
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Global prevalence of infections in newborns with respiratory complications: systematic review and meta-analysis.

    Zhao, Xiaoxiao / Zhang, Nan

    Iranian journal of microbiology

    2024  Volume 16, Issue 1, Page(s) 19–28

    Abstract: Background and objectives: Newborns as a vulnerable population are exposed to congenital and acquired infections during and after birth. There are several reports of the isolation and reporting of infectious agents (IAs) in early life of newborns with ... ...

    Abstract Background and objectives: Newborns as a vulnerable population are exposed to congenital and acquired infections during and after birth. There are several reports of the isolation and reporting of infectious agents (IAs) in early life of newborns with respiratory manifestations, and the present comprehensive study provides a snapshot of the current global situation of the prevalence of IAs in newborns with respiratory symptoms.
    Materials and methods: A systematic search was conducted in main databases, including PubMed, Scopus, Web of science, and Google scholar. The pooled prevalence of infectious agents (IAs) in newborns was estimated using comprehensive meta-analysis software based on random effects model.
    Results: Out of 44 inclusive studies (50 datasets) for IAs in newborns, the pooled prevalence was estimated to be 12.2% (95% CI: 6.40-22.0%) and the highest and lowest prevalence of IAs was related to the Brazil (78.2%, 95% CI: 31.0-96.6%), and UK (0.01%, 95% CI 0.01-0.01%) respectively.
    Conclusion: The high prevalence of IAs in newborns emphasizes considers the necessary measures to prevent respiratory infections.
    Language English
    Publishing date 2024-04-26
    Publishing country Iran
    Document type Journal Article
    ZDB-ID 2652849-6
    ISSN 2008-4447 ; 2008-3289
    ISSN (online) 2008-4447
    ISSN 2008-3289
    DOI 10.18502/ijm.v16i1.14867
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Method for real-time prediction of cutter wear during shield tunnelling: A new wear rate index and MCNN-GRU.

    Zhang, Nan / Zhao, Lin-Shuang

    MethodsX

    2023  Volume 10, Page(s) 102017

    Abstract: Cutter wear is one of the key factors influencing construction efficiency during shield tunnelling. Prediction of cutter wear can improve construction efficiency by reducing the times of cutter inspections in engineering practice. Evaluation of cutter ... ...

    Abstract Cutter wear is one of the key factors influencing construction efficiency during shield tunnelling. Prediction of cutter wear can improve construction efficiency by reducing the times of cutter inspections in engineering practice. Evaluation of cutter life is vital for cutter wear prediction, however, existing cutter life indices can only estimate the health condition of all cutters on cutterhead on a holistic basis. A new index was proposed to evaluate cutter wear located at a specific installation position on cutterhead. A deep learning model integrating the index was developed for the estimation of accumulated cutter wear during real time shield tunnelling. The new index can be obtained by monitored field parameters and can predict cutter wear with historical wear patterns. The input and output data samples were reshaped for multi-step prediction. A shield tunnelling section in Guangzhou weathered granite was used for validation. The proposed method can help reduce the cost of cutter replacement by reducing the times of machine interventions. The method article is a companion paper to the original article [1].•Proposed index for prediction of cutter wear rate.•Deep learning model of 1D-CNN and GRU.•Multi-step cutter wear prediction.
    Language English
    Publishing date 2023-01-18
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2830212-6
    ISSN 2215-0161
    ISSN 2215-0161
    DOI 10.1016/j.mex.2023.102017
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Multiview Unsupervised Shapelet Learning for Multivariate Time Series Clustering.

    Zhang, Nan / Sun, Shiliang

    IEEE transactions on pattern analysis and machine intelligence

    2023  Volume 45, Issue 4, Page(s) 4981–4996

    Abstract: Multivariate time series clustering has become an important research topic in the time series learning task, which aims to discover the correlation among multiple sequences and partition multivariate time series data into several subsets. Although there ... ...

    Abstract Multivariate time series clustering has become an important research topic in the time series learning task, which aims to discover the correlation among multiple sequences and partition multivariate time series data into several subsets. Although there are currently some methods that can handle this task, most of them fail to discover informative subsequences from multivariate time series instances. In this paper, we first propose a novel unsupervised shapelet learning with adaptive neighbors (USLA) model for learning salient multivariate subsequences (i.e., multivariate shapelets), where the importance of each variate can be auto-determined when given a candidate multivariate shapelet. USLA performs multivariate shapelet-transformed representation learning and local structure learning simultaneously, but the performance of USLA with multivariate shapelets of different lengths is comparable to that of isometric multivariate shapelets. In fact, the shapelet-transformed representations learned from multivariate shapelets of different lengths can all represent multivariate time series instances separately and often contain complementary information to each other. Therefore, we develop a novel multiview USLA (MUSLA) model which treats shapelet-transformed representations learned from shapelets of different lengths as different views. In this way, MUSLA learns the importance of each view and the neighbor graph matrix among multiview representations when candidate multivariate shapelets of different lengths are determined. Experimental results show that MUSLA outperforms other state-of-the-art multivariate time series algorithms on real-world multivariate time series datasets.
    Language English
    Publishing date 2023-03-07
    Publishing country United States
    Document type Journal Article
    ISSN 1939-3539
    ISSN (online) 1939-3539
    DOI 10.1109/TPAMI.2022.3198411
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: When Unstructured Big Text Corpus Meets Text Network Analysis: Social Reality Conceptualization and Visualization Graph of Big Interview Data of Heavy Drug Addicts of Skid Row.

    Feyissa, Israel Fisseha / Zhang, Nan

    Healthcare (Basel, Switzerland)

    2023  Volume 11, Issue 17

    Abstract: Relying on user-generated content narrating individual experiences and personalized contextualization of location-specific realities, this study introduced a novel methodological approach and analysis tool that can aid health informatics in understanding ...

    Abstract Relying on user-generated content narrating individual experiences and personalized contextualization of location-specific realities, this study introduced a novel methodological approach and analysis tool that can aid health informatics in understanding the social reality of people with a substance-use disorder in Skid Row, Los Angeles. The study also highlighted analysis possibilities for big unstructured interview text corpus using InfraNodus, a text network analysis tool. InfraNodus, which is a text graph analysis tool, identifies pathways for meaning circulation within unstructured interview data and has the potential to classify topical clusters and generate contextualized analysis results for big narrative textual datasets. Using InfraNodus, we analyzed a 1,103,528-word unstructured interview transcript from 315 interview sessions with people with a substance-use disorder, who narrated their respective social realities. Challenging the overgeneralization of onlookers, the conceptualization process identified topical clusters and pathways for meaning circulation within the narrative data, generating unbiased contextualized meaning for the collective social reality. Our endeavors in this research, along with our methodological setting and selection, might contribute to the methodological efforts of health informatics or the conceptualization and visualization needs of any big text corpus.
    Language English
    Publishing date 2023-08-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2721009-1
    ISSN 2227-9032
    ISSN 2227-9032
    DOI 10.3390/healthcare11172439
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Robust and non-robust bound states in the continuum in rotationally symmetric periodic waveguides.

    Zhang, Nan / Lu, Ya Yan

    Optics express

    2023  Volume 31, Issue 10, Page(s) 15810–15824

    Abstract: A fiber grating and a one-dimensional (1D) periodic array of spheres are examples of rotationally symmetric periodic (RSP) waveguides. It is well known that bound states in the continuum (BICs) may exist in lossless dielectric RSP waveguides. Any guided ... ...

    Abstract A fiber grating and a one-dimensional (1D) periodic array of spheres are examples of rotationally symmetric periodic (RSP) waveguides. It is well known that bound states in the continuum (BICs) may exist in lossless dielectric RSP waveguides. Any guided mode in an RSP waveguide is characterized by an azimuthal index m, the frequency ω, and Bloch wavenumber β. A BIC is a guided mode, but for the same m, ω and β, cylindrical waves can propagate to or from infinity in the surrounding homogeneous medium. In this paper, we investigate the robustness of nondegenerate BICs in lossless dielectric RSP waveguides. The question is whether a BIC in an RSP waveguide with a reflection symmetry along its axis z, can continue its existence when the waveguide is perturbed by small but arbitrary structural perturbations that preserve the periodicity and the reflection symmetry in z. It is shown that for m = 0 and m ≠ 0, generic BICs with only a single propagating diffraction order are robust and non-robust, respectively, and a non-robust BIC with m ≠ 0 can continue to exist if the perturbation contains one tunable parameter. The theory is established by proving the existence of a BIC in the perturbed structure mathematically, where the perturbation is small but arbitrary, and contains an extra tunable parameter for the case of m ≠ 0. The theory is validated by numerical examples for propagating BICs with m ≠ 0 and β ≠ 0 in fiber gratings and 1D arrays of circular disks.
    Language English
    Publishing date 2023-05-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.487053
    Database MEDical Literature Analysis and Retrieval System OnLINE

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