Showing 12,881 - 12,900 results of 14,865 for search 'Operational data analysis', query time: 0.32s Refine Results
  1. 12881

    New design of microstrip patch antenna at 28 GHZ and $$4\times 4$$ 4 × 4 MIMO configuration with improved characteristics for IOT applications by Samar I. Farghaly, Kamel E. Abo Al-Ela, Abdelaziz Y. Zaki, Hager S. Fouda

    Published 2025-07-01
    “…Abstract This paper presents the design and analysis of a high-performance microstrip patch antenna operating at 28 GHz, along with a multiple-input multiple-output configuration optimized for beyond 5G and IoT applications. …”
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  2. 12882
  3. 12883

    Anomalous Propagation of Radio Waves from Distant ILS Localizers Due to Ionospheric Sporadic‐E by J. Sakai, S. Saito, K. Hosokawa, I. Tomizawa

    Published 2020-08-01
    “…This effect, EsAP, may cause interference to VHF radio operation above 100 MHz. Recent study showed that VHF air navigation signals from distant stations are frequently observed when Es occurs. …”
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  4. 12884

    Frailty risk prediction models for patients undergoing maintenance hemodialysis in China: a systematic review by Yu Zhong, Songmei Cao, Liangying Chen, Teng Li, Wei Ye

    Published 2025-02-01
    “…While the overall applicability of the ten studies was deemed satisfactory, it is important to note that all studies exhibited a high risk of bias, particularly concerning the data analysis component. Conclusion The frailty risk prediction models for patients undergoing maintenance hemodialysis have demonstrated satisfactory applicability; however, they are all associated with a significant risk of bias and lack comprehensive external validation. …”
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  5. 12885

    A Study on The Relationship Between Organic Agriculture and Agricultural Employment in Türkiye by Kurtuluş Merdan

    Published 2024-09-01
    “…Due to the substitution of organic inputs with chemical inputs, getting the products ready for sale, weed control, and similar operations by hand, enterprises engaged in organic farming require a larger labor force. …”
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  6. 12886

    Adopting augmented reality into retailing mix strategy: Generation Z’s perspective in Egypt by Marwa Mahmoud Ibrahim, Rasha Ihab Nasr

    Published 2025-02-01
    “…Structural equation modelling analysis was the main statistical tool for testing the hypotheses. …”
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    Article
  7. 12887

    Nomogram Prediction of Anastomotic Leakage and Determination of an Effective Surgical Strategy for Reducing Anastomotic Leakage after Laparoscopic Rectal Cancer Surgery by Chang Hyun Kim, Soo Young Lee, Hyeong Rok Kim, Young Jin Kim

    Published 2017-01-01
    “…Although many surgical strategies have been used to reduce the anastomotic leak (AL) rate after laparoscopic rectal cancer surgery, limited data are available on the risk factors for AL and the effective strategy to reduce AL. …”
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    Article
  8. 12888

    Viability of Substituting Handheld Metal Detectors with an Airborne Metal Detection System for Landmine and Unexploded Ordnance Detection by Sagar Lekhak, Emmett J. Ientilucci, Anthony Wayne Brinkley

    Published 2024-12-01
    “…We demonstrate how our experimental normalization technique effectively identifies additional anomalies in airborne metal detector data, providing insights for improved detection methodologies.…”
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  9. 12889

    Modelagem empírica do processo de biodegradação de efluentes protéicos por enzimas de Carica papaya sp. Empirical modeling of biodegradation process of proteic effluents by enzymes... by Joana P. M. Biazus, José C. C. Santana, Roberto R. de Souza

    Published 2006-06-01
    “…Hiper plane empirical model was the one that best fitted to biodegradation data under the influence factors (pH and temperature) and the optimized operation zone for the protein biodegradation by papains was the one that presented the high temperature and low pH values.…”
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  10. 12890

    High-precision deformation monitoring and intelligent early warning for wellbore based on BDS/GNSS. by Jiang Li, Lei Dai, Keke Xu, Xinyu Mei, Yifu Liu, Jianlin Shi, Hebing Zhang

    Published 2025-01-01
    “…To address the complex deformation of wellbores influenced by surrounding coal mining operations, this study employed an improved modified least-squares ambiguity decorrelation (MLAMBDA) algorithm based on the double-difference model for high-frequency dynamic computation of Bei Dou System and Global Navigation Satellite System (BDS/GNSS) observation data. …”
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  11. 12891

    Middle lobe tumors and lymphovascular invasion as independent predictors of recurrence-free survival in stage I NSCLC by Mustafa Akyıl, Serkan Bayram

    Published 2025-02-01
    “…During a median follow-up period of 50.4 ± 23.7 months (ranging from 1 to 89 months), 79 patients (12.8%) experienced recurrence or metastasis, while 41 patients (6.7%) died. Multivariate analysis showed no significant differences (p > 0.05) regarding recurrence or metastasis development when considering demographic characteristics, tumor size, operation forms, histopathologic types involved, perineural and visceral pleural invasion status, and aspects of oncological treatment. …”
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  12. 12892

    Machine learning-based prediction of CO2 solubility in methyldiethanolamine solutions: A comparative study by Sajjad Fazeli, Mohammad Amin Moradkhani, Behrouz Bayati

    Published 2025-06-01
    “…The novel models also favorably described the absorption capacity of diverse MDEA-based solutions under a wide range of operating conditions. Finally, the order of significance of influential factors in controlling solubility was determined based on a sensitivity analysis.…”
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  13. 12893

    Fe-ZnO as an oxide-dilute magnetic semiconductor in the nanostructured ZnFeO exchange bias system by V Mihalache

    Published 2025-01-01
    “…All samples show the EB effect, characterised by a high EB blocking temperature, T _B  ≈ 200 K, and/or a low EB blocking temperature, T _B  ≈ 50 K. The analysis of experimental data provides evidence for the exchange biasing of Fe-ZnO (oxide-DMS) by the FeO (AFM) phase and/or SG phase. …”
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  14. 12894

    A fiber channel modeling method based on complex neural networks by Haifeng Yang, Yongjun Wang, Chao Li, Lu Han, Qi Zhang, Xiangjun Xin

    Published 2025-07-01
    “…The NMSE achieved by the C-CGAN remains below $$2\times 10^{-2}$$ and outperforms the R-CGAN. Additionally, analysis from the perspective of floating-point operations (FLOPs) reveals that the computational complexity of the C-CGAN is relatively low. …”
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  15. 12895

    Machine learning approaches reveal methylation signatures associated with pediatric acute myeloid leukemia recurrence by Yushuang Dong, HuiPing Liao, Feiming Huang, YuSheng Bao, Wei Guo, Zhen Tan

    Published 2025-05-01
    “…This study proposes methylation signatures associated with AML recurrence using computational methods. DNA methylation data from 696 newly diagnosed and 194 relapsed pediatric AML patients were analyzed. …”
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  16. 12896

    PROBABLE CALCULATION OF BUILDING SEISMIC RESISTANCE ON KINEMATIC SUPPORT by H. M. Muselemov, O. M. Ustarkhanov, A. K. Yusupov

    Published 2019-05-01
    “…The article reflects the results of the numerical analysis of the earthquake-resistant building on kinematic supports. …”
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  17. 12897

    THUNDERSTORM ACTIVITY AND LIGHTNING PROTECTION OF POWER PLANTS AND EQUIPMET ON THE TERRITORY OF AZERBAIJAN REPUBLIC by A. M. Gashimov, A. M. Khidirov

    Published 2015-03-01
    “…In the article the results of a wind parameters analysis at the wind power parks construction territory in the north of the Azerbaijan Republic are presented. …”
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  18. 12898

    Water Environmental Carrying Capacity for Activities of Intensive Shrimp Farm in Banyuputih Sub-District, Situbondo Regency by Abdul Muqsith, Nurdin Harahab, Mohammad Mahmudi

    Published 2014-09-01
    “…We used survey method and secondary data collection from other researches or result report of relevant institution. …”
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  19. 12899

    Model and training method for aerial image object detector with optimization of both robustness and computational efficiency by Alona Moskalenko, Mykola Zaretskyi, Maksym Vynohradov, Vladyslav Babych

    Published 2024-10-01
    “…The subject of research is Neural network-based object detectors, which are widely used for video image analysis. An increasing number of tasks now demand data processing directly at the source, which limits the available computational resources. …”
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  20. 12900