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  1. Book ; Online: Computational Fluid Mechanics

    Du, Peng / Ouahsine, Abdellatif / Hu, Haibao / Chen, Xiaopeng

    2023  

    Keywords Technology: general issues ; History of engineering & technology ; high sea state ; USV ; large scale ; motion in waves ; safety of the trip ; hydrodynamics ; inland convoy ; bridge pier ; confined waterway ; resistance ; high-speed supercavitation vehicle ; wet surface ; hydrodynamic force ; damping force ; periodic swing ; heaving foil ; different waveform perturbation ; hydrodynamic characteristics ; vortex structure ; pump-jet propulsor ; SST ; stator solidity ; stator angle ; rotor-stator spacing ; blade number ; vortices ; submarine-launched vehicle ; pressure-equalizing exhaust ; multiphase flow ; air film fusion ; convective heat transfer ; impinging jet ; VTOL (vertical take-off and landing) ; thermal flow ; stagnation point ; CFD (computational fluid dynamics) ; numerical simulations ; multiple discharges ; inclined dense jets ; mixing and dilution ; discharge inclination ; cable-laying vessel ; submarine cable ; dynamic interactions ; numerical simulation ; combination excitation ; liquid cargo tank ; sloshing ; manta rays ; fish schooling ; tandem gliding ; the bow of the submarine ; turbulent boundary layer ; pressure fluctuation ; stress-blended eddy simulation ; horizontal submerged jet ; Wray-Agarwal turbulence model ; flow field structure ; speed distribution ; n/a
    Language English
    Size 1 electronic resource (274 pages)
    Publisher MDPI - Multidisciplinary Digital Publishing Institute
    Publishing place Basel
    Document type Book ; Online
    Note English
    HBZ-ID HT030377115
    ISBN 9783036571706 ; 3036571701
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article: The influence mechanism of resource sharing on tourism industry innovation.

    Chen, Xuejun / Ling, Xiaopeng

    Heliyon

    2024  Volume 10, Issue 4, Page(s) e25855

    Abstract: The development of the concept of "sharing" in the era of the digital economy has promoted significant changes in the innovation mechanism of the tourism industry. This article takes 31 provinces (municipalities and districts) in China as the research ... ...

    Abstract The development of the concept of "sharing" in the era of the digital economy has promoted significant changes in the innovation mechanism of the tourism industry. This article takes 31 provinces (municipalities and districts) in China as the research object, and collect four types of tourism statistics. Inspired by resource-based theory and dynamic capability theory, the article builds a research model of resource sharing for tourism industry innovation, proposes relevant hypotheses, discusses the influence mechanism of tourism industry innovation, and uses a fixed effects model and intermediary mechanism model for empirical test. The results show that the constructed model has good explanatory power and adaptability. Resource sharing can significantly drive tourism industry innovation, and the conclusion is robust. Tourism industry marketization, innovation ability, and competitiveness play an intermediary role in resource sharing to promote tourism industry innovation. The influence of resource sharing on tourism industry innovation has regional heterogeneity. The article aims to reveal the influence mechanism of resource sharing on tourism industry innovation under the digital economy, and the research conclusions can provide references for various provinces (municipalities and districts) to improve regional industrial innovation ability.
    Language English
    Publishing date 2024-02-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2024.e25855
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Development and validation of a clinical risk score for all-cause mortality in patients with acquired long QT syndrome.

    Dong, Xiaopeng / Wang, Shihao / Chen, Cheng / Yang, Xiaolei / Xia, Yunlong

    European journal of internal medicine

    2024  

    Language English
    Publishing date 2024-03-11
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 1038679-8
    ISSN 1879-0828 ; 0953-6205
    ISSN (online) 1879-0828
    ISSN 0953-6205
    DOI 10.1016/j.ejim.2024.02.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2608: Show issues Location:
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  4. Article: The Influence of Electroluminescent Inhomogeneous Phase Addition on Enhancing MgB

    Qi, Yao / Chen, Duo / Sun, Chao / Hai, Qingyu / Zhao, Xiaopeng

    Materials (Basel, Switzerland)

    2024  Volume 17, Issue 8

    Abstract: As a highly regarded superconducting material with a concise layered structure, ... ...

    Abstract As a highly regarded superconducting material with a concise layered structure, MgB
    Language English
    Publishing date 2024-04-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma17081903
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: A Conceptual Model Study of Tourism Resource Sharing in the Digital Economy

    Xuejun Chen / Xiaopeng Ling

    Sustainability, Vol 15, Iss 9752, p

    2023  Volume 9752

    Abstract: The concept of “sharing” and the development of the digital economy have driven the transformation of resource allocation in the tourism industry to resource sharing. The article defines resource sharing in the tourism industry from a comprehensive ... ...

    Abstract The concept of “sharing” and the development of the digital economy have driven the transformation of resource allocation in the tourism industry to resource sharing. The article defines resource sharing in the tourism industry from a comprehensive perspective according to the systematic analysis of the concept of resource sharing and the background of the digital economy, which is an economic behavior of integrating, opening and sharing resources among members under the guidance of the government and relying on modern information technology such as the internet, with the sharing of usage rights as the main feature. Based on the dual inspiration of MICK resource classification theory and digital economy theory, the article constructs a conceptual model and measurement scale of resource sharing in the tourism industry from four dimensions: knowledge resource sharing, material resource sharing, information resource sharing and capital resource sharing. The panel data of 31 provinces (municipalities and autonomous regions) from 2016 to 2020 were analyzed mathematically and statistically. The analysis results showed that the weight of knowledge resources is the highest. Moreover, the eastern region had the highest level of resource sharing and the western region had the lowest level of resource sharing. Furthermore, the level of resource sharing in the past five years showed a trend of year-on-year improvement. Based on the scores, countermeasures are proposed in terms of enhancing the importance of information technology and strengthening basic support according to local conditions, which provide a reference for cities to improve the level of resource sharing.
    Keywords digital economy ; tourism industry ; resource sharing ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
    Subject code 910
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  6. Article ; Online: A novel classification predicts prognosis and drug sensitivity in osteosarcoma based on alterations in gene sets.

    Ye, Shuxi / Wang, Xiaopeng / Chen, Rongchun

    Aging

    2024  Volume 16, Issue 5, Page(s) 4579–4590

    Abstract: Osteosarcoma is a cancer originating in the bone cells, specifically in the osteoblasts. Previous studies mainly focused on particular molecules but the whole pathway network. We comprehensively analyzed the enrichment score of each signal pathway and ... ...

    Abstract Osteosarcoma is a cancer originating in the bone cells, specifically in the osteoblasts. Previous studies mainly focused on particular molecules but the whole pathway network. We comprehensively analyzed the enrichment score of each signal pathway and identified a novel classification by 20 machine learning algorithms. Furthermore, differences in tumor immune infiltration cells and drug sensitivity were compared in low and high groups. We identified a model consisting of four signaling pathways that predict the prognosis and the immune status of the tumor microenvironment and drug sensitivity in osteosarcoma patients. The novel classification may be used in clinical applications to predict prognosis and drug sensitivity.
    MeSH term(s) Humans ; Osteosarcoma/drug therapy ; Osteosarcoma/genetics ; Osteoblasts ; Prognosis ; Algorithms ; Tumor Microenvironment/genetics ; Bone Neoplasms/drug therapy ; Bone Neoplasms/genetics
    Language English
    Publishing date 2024-02-28
    Publishing country United States
    Document type Journal Article
    ISSN 1945-4589
    ISSN (online) 1945-4589
    DOI 10.18632/aging.205614
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Secure User Pairing and Power Allocation for Downlink Non-Orthogonal Multiple Access against External Eavesdropping.

    Li, Yuxuan / Chen, Yanqiu / Ji, Xiaopeng

    Entropy (Basel, Switzerland)

    2024  Volume 26, Issue 1

    Abstract: We propose a secure user pairing (UP) and power allocation (PA) strategy for a downlink Non-Orthogonal Multiple Access (NOMA) system when there exists an external eavesdropper. The secure transmission of data through the downlink is constructed to ... ...

    Abstract We propose a secure user pairing (UP) and power allocation (PA) strategy for a downlink Non-Orthogonal Multiple Access (NOMA) system when there exists an external eavesdropper. The secure transmission of data through the downlink is constructed to optimize both UP and PA. This optimization aims to maximize the achievable sum secrecy rate (ASSR) while adhering to a limit on the rate for each user. However, this poses a challenge as it involves a mixed integer nonlinear programming (MINLP) problem, which cannot be efficiently solved through direct search methods due to its complexity. To handle this gracefully, we first divide the original problem into two smaller issues, i.e., an optimal PA problem for two paired users and an optimal UP problem. Next, we obtain the closed-form optimal solution for PA between two users and UP in a simplified NOMA system involving four users. Finally, the result is extended to a general 2K-user NOMA system. The proposed UP and PA method satisfies the minimum rate constraints with an optimal ASSR as shown theoretically and as validated by numerical simulations. According to the results, the proposed method outperforms random UP and that in a standard OMA system in terms of the ASSR and the average ASSR. It is also interesting to find that increasing the number of user pairs will bring more performance gain in terms of the average ASSR.
    Language English
    Publishing date 2024-01-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2014734-X
    ISSN 1099-4300 ; 1099-4300
    ISSN (online) 1099-4300
    ISSN 1099-4300
    DOI 10.3390/e26010064
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Enhanced second harmonic generation from a quasi-periodic silver dendritic metasurface.

    Chen, Huan / Chen, Xin / Zhao, Xiaopeng / Wang, Junli

    Nanotechnology

    2023  Volume 35, Issue 3

    Abstract: The preparation of the vast majority of nonlinear optical metal metasurfaces currently relies on complex top-down methods such as electron beam or ion beam etching, which are expensive and difficult to meet the requirement of large area preparation. In ... ...

    Abstract The preparation of the vast majority of nonlinear optical metal metasurfaces currently relies on complex top-down methods such as electron beam or ion beam etching, which are expensive and difficult to meet the requirement of large area preparation. In this paper, an easily prepared quasi-periodic silver dendritic metasurface model with high
    Language English
    Publishing date 2023-11-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 1362365-5
    ISSN 1361-6528 ; 0957-4484
    ISSN (online) 1361-6528
    ISSN 0957-4484
    DOI 10.1088/1361-6528/ad0484
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Treatment of neonatal dural arteriovenous fistula with a spiral coil combined with glue.

    Ren, Jianbing / Chen, Juan / Liu, Yongxi / Zhao, Xiaopeng / Nie, Chuan

    Acta neurologica Belgica

    2023  

    Language English
    Publishing date 2023-10-05
    Publishing country Italy
    Document type Letter
    ZDB-ID 127315-2
    ISSN 2240-2993 ; 0300-9009
    ISSN (online) 2240-2993
    ISSN 0300-9009
    DOI 10.1007/s13760-023-02397-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  10. Article ; Online: Recent research progresses of Sn/Bi/In-based electrocatalysts for electroreduction CO

    Liu, Ms Fei / Zhang, Chen / Wang, Jiajun / Han, Xiaopeng / Hu, Wenbin / Deng, Yida

    Chemistry (Weinheim an der Bergstrasse, Germany)

    2024  Volume 30, Issue 17, Page(s) e202303711

    Abstract: Carbon dioxide electroreduction reaction ( ... ...

    Abstract Carbon dioxide electroreduction reaction (CO
    Language English
    Publishing date 2024-01-18
    Publishing country Germany
    Document type Journal Article ; Review
    ZDB-ID 1478547-X
    ISSN 1521-3765 ; 0947-6539
    ISSN (online) 1521-3765
    ISSN 0947-6539
    DOI 10.1002/chem.202303711
    Database MEDical Literature Analysis and Retrieval System OnLINE

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