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  1. 641
  2. 642

    Massive access technology in 6G cellular Internet of things network by Feiyan TIAN, Xiaoming CHEN, Caijun ZHONG, Zhaoyang ZHANG

    Published 2020-03-01
    “…To realize Internet of everything (IoE),the 6G cellular Internet of things (IoT) network need to provide wireless access with low power,massive connectivity and wide coverage.Through the analysis and research on the massive access technology in 6G cellular IoT network,especially in combination with the sporadic characteristics of IoT applications,a new access framework based on the grant-free random access protocol was designed to facilitate efficient massive access with limited spectrum resources.The proposed framework consisted of two phases.One was joint activity detection and channel estimation.The other was data transmission,which was divided into two categories,uplink data transmission and downlink data transmission,according to the different directions of data transmission.Due to the uncertainty of channel state information at the base station under the massive grant-free random access and considering the low power demand of 6G IoT devices,two robust uplink and downlink access algorithms were designed by maximizing the system energy efficiency.Extensive simulation results validate the effectiveness and robustness of the proposed algorithm.…”
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  3. 643
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  5. 645

    Um modelo para medir os efeitos da cobertura da imprensa no voto: teste nas eleições de 2002 e 2006 by Pedro Santos Mundim

    Published 2010-11-01
    “…The main independent variable was constructed from the content analysis focusing on the electoral coverage by the following Brazilian newspapers: Folha de S. …”
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  6. 646

    Transition Mechanism Design for Wind Power Participating in Energy Markets by WU Yang, LU Zhilin, ZHU Wenjing, LIU Shuangquan, LENG Yuan, ZHU Xinchun, LIU Mingbo

    Published 2025-05-01
    “…[Methods] A medium- and long-term contract mechanism is proposed to adjust wind farm revenue by modifying contract coverage. A bi-level programming is employed to model participation in both the medium- and long-term and spot markets. …”
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  7. 647

    A scientometric analysis of the thematic structure and analysis of the convergence mapping of medical education. by Mohammad Bagher Negahban

    Published 2025-08-01
    “…It underscores the importance of network analysis in mapping complex research domains and guiding strategic development in academic and institutional contexts. …”
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  8. 648

    A decadal review of organizational identification: insights from bibliometric analysis and content analysis by Divya S, B. Prabu Christopher

    Published 2024-11-01
    “…This study aims to examine the impact of OI using bibliometric analysis and a literature review. Despite the topic’s wide use and coverage, the literature lacks quantitative data for bibliographic element analysis, making this study unique. …”
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  9. 649

    Trends and visualization analysis of research on MASLD-Related hepatocellular carcinoma: a bibliometric analysis by Hongkun Yin, Xusheng Zhang, Qi Wang

    Published 2025-06-01
    “…However, it should be noted that although the WoSCC is a widely recognized and authoritative database, it may have limitations related to regional bias, language coverage, and metadata accuracy, which could potentially affect the comprehensiveness of our analysis.…”
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  10. 650

    Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidt... by Hao Chen, Huangfan Wang, Feiwan Xie, Shaohua Yang, Huafeng Dong, Fugen Wu, Wenyuan Liao

    Published 2024-01-01
    “…Our modulator achieves a bandwidth of nearly 110 GHz and a half-wave voltage of 1.45 V <inline-formula><tex-math notation="LaTeX">$\cdot$</tex-math></inline-formula> cm. A comparative analysis between two configurations: one with SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> cladding covering the entire surface and the other with coverage limited to the electrode gaps, which reveals the latter potential for enhancing device performance. …”
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  11. 651

    Preoperative plasma cell-free DNA chromosomal instability predicts microvascular invasion in hepatocellular carcinoma: a prospective study by Zheyue Shu, Ting Ye, Wei Wu, Menghan Su, Jingcheng Wang, Min Zhang, Ziliang Qian, Haifen Huang, Shusen Zheng, Qi Xia

    Published 2025-05-01
    “…The UCAD model was a superior parameter in predicting preoperative MVI, with an area under curve (AUC) value 0.749 with a sensitivity of 0.938 specificity of 0.466. Univariate analysis revealed that tumor size (≥ 5 cm) and UCAD (> 0.199) significantly increased the risk of MVI, which were further demonstrated by multivariate analysis, with odd ratio of 1.338 (95%CI, 1.060–1.689) and 2.028 (95%CI, 1.053–3.908) (P < 0.05). …”
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  12. 652
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    Exploring stakeholders’ experiences on implementing family medicine in urban South Africa by John M. Musonda, Shabir Moosa

    Published 2025-04-01
    “…Contribution: The study provides insight into recognising family medicine, which preceded the government’s efforts to introduce Universal Health Coverage to be funded through the National Health Insurance.…”
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  14. 654

    Secure Scan Architecture for Enhanced Testability and Resistance Against Side-Channel Attacks in Cryptographic ICs by A. Swetha Priya, S. Kamatchi, E. Lakshmi Prasad

    Published 2025-01-01
    “…The proposed design attains high fault coverage of ~99.99%, reduces test patterns by ~1.81x, and lowers run time by ~5.45x. …”
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  15. 655
  16. 656

    Terminological Analysis of the Term “Monograph” by M. Ch. Kuular

    Published 2021-10-01
    “…The article considers the terminological analysis of the term “monograph” according to a number of attributes: its material structure, intended purpose, presentation of material, coverage, number of authors, target audience, functions of a monograph for an author and a reader. …”
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  17. 657

    Machine Fault Signature Analysis by Pratesh Jayaswal, A. K. Wadhwani, K. B. Mulchandani

    Published 2008-01-01
    “…It is not the intention of the authors to attempt to provide a detailed coverage of all the faults while detailed consideration is given to the subject of the rolling element bearing fault signature analysis.…”
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  18. 658

    Text Analysis of Patent Abstracts by Yvonne Tsai

    Published 2010-01-01
    “…This includes text structure, text pattern, linguistic features, lexical analysis, and syntactic analysis. This research took as its starting point the bottom-up approach of analysing the lexical features, syntactic features, and textual features of patent abstracts for comprehensive coverage of text analysis. …”
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  19. 659

    Energy optimization in intelligent sensor networks: application of particle swarm optimization algorithm in the deployment of electronic information sensing nodes by Wang Liang

    Published 2025-07-01
    “…Abstract Positioning, coverage, and energy efficiency are essential for developing next-generation intelligent sensor networks. …”
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  20. 660

    Role of hydrometeorological factors and solar activity in interannual variability of ice extent in the East Siberian Sea by L. A. Timokhov, V. E. Borodachev, I. V. Borodachev, N. A. Vyazigina, E. U. Mironov, M. Janout

    Published 2019-06-01
    “…Multivariate statistical analysis of time series of the ice cover, hydrometeorological elements, and the solar activity (SA), was performed for the period from 1950 to 2012 with regard for the cross-correlations of the analyzed variables that made possible to develop the equations of interannual fluctuations of the ice coverage in the East Siberian Sea in August and September. …”
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