Showing 421 - 440 results of 9,156 for search 'issues samples', query time: 0.13s Refine Results
  1. 421

    The Heavy metals contamination and health risk assessment in food samples from the Democratic Republic of the Congo: A systematic review by Lievins-Corneille Mputu Malolo, Jocelyn Mankulu Kakumba, Patrick Ndelo Matondo, Yannick Nuapia Belo, Josaphat Ndelo-di-Phanzu

    Published 2024-11-01
    “…Chronic exposure can lead to serious health issues, with the impact of contaminated foods influenced by factors such as exposure level, body mass, age, and gender. …”
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    Article
  2. 422

    SPS-RCNN: Semantic-Guided Proposal Sampling for 3D Object Detection from LiDAR Point Clouds by Hengxin Xu, Lei Yang, Shengya Zhao, Shan Tao, Xinran Tian, Kun Liu

    Published 2025-02-01
    “…To address these issues, we propose semantic-guided proposal sampling-RCNN (SPS-RCNN), a multi-stage detection framework based on point–voxel fusion. …”
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  3. 423

    A Lightweight Kernel Density Estimation and Adaptive Synthetic Sampling Method for Fault Diagnosis of Rotating Machinery with Imbalanced Data by Wenhao Lu, Wei Wang, Xuefei Qin, Zhiqiang Cai

    Published 2024-12-01
    “…These challenges are particularly pronounced when defining decision boundaries accurately and managing limited computational resources in real-time machine monitoring. To address these issues, this study presents KDE-ADASYN-based MobileNet with SENet (KAMS), a lightweight convolutional neural network designed for fault diagnosis in rotating machinery. …”
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  4. 424
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  6. 426

    Design of a wideband quantum power and energy standard based on the sub-sampling method with programmable Josephson voltage standard by QIAN Lushuai, SHI Yang, ZHOU Kunli, JIA Yichen, ZHAO Jianting, QU Jifeng

    Published 2025-01-01
    “…To address these issues, this paper proposes a wideband quantum power and energy standard design based on programmable Josephson voltage standard. …”
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    Article
  7. 427

    Enhancing the robustness of Mendelian randomization studies: lessons from a two-sample analysis of viral infections and colorectal cancer by Tianfei Yu, Jinyong Xia, Haichang Yin, Nana Yi, Lanlan Zhang, Ming Li

    Published 2024-12-01
    “…Abstract This Matters Arising article critically examines the study “Genetic susceptibility association between viral infection and colorectal cancer risk: a two-sample Mendelian randomization analysis” by Li et al., highlighting both its contributions and methodological limitations. …”
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  8. 428

    Evaluating the Causal Association Between Type 2 Diabetes and Alzheimer’s Disease: A Two-Sample Mendelian Randomization Study by Si Han, Tom Lelieveldt, Miriam Sturkenboom, Geert Jan Biessels, Fariba Ahmadizar

    Published 2025-04-01
    “…<b>Results</b>: Of 271 articles, 8 MR studies were included (sample sizes: 68,905 to 788,989), all from European ancestry. …”
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  9. 429
  10. 430

    A novel extraction method of prymnesins from Prymnesium parvum whole culture samples and re-evaluation of existing protocols by Magdalena Pöchhacker, Alexander Conrad, Doris Marko, Elisabeth Varga

    Published 2025-09-01
    “…The detection of PRMs is still a challenge due to a lack of analytical standards and stability issues along with losses during conventional extraction methods. …”
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    Article
  11. 431

    Assessment of Safety and Interference Issues of Radio Frequency Identification Devices in 0.3 Tesla Magnetic Resonance Imaging and Computed Tomography by M. Periyasamy, R. Dhanasekaran

    Published 2014-01-01
    “…Fifteen samples of RFID tags with two different sizes (wristband and ID card types) were tested. …”
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  12. 432
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  14. 434

    Development of enriced butter by N. S. Bezverkhaya, O. A. Ogneva

    Published 2021-12-01
    “…At present the issues related to the prevention of diseases of the 20th century that arise with the development of human society and include external (infection, climate change, ecology) and internal (stressful situations, weakening of immunity, metabolic problems) reasons caused by the modern lifestyle are the topical issues of the world community. …”
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  15. 435

    An ensemble learning method with GAN-based sampling and consistency check for anomaly detection of imbalanced data streams with concept drift. by Yansong Liu, Shuang Wang, He Sui, Li Zhu

    Published 2024-01-01
    “…Only a few approaches tackle the joint issue of imbalance and concept drift. To overcome this joint issue, we propose an ensemble learning method with generative adversarial network-based sampling and consistency check (EGSCC) in this paper. …”
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  16. 436

    Applying Machine Learning Sampling Techniques to Address Data Imbalance in a Chilean COVID-19 Symptoms and Comorbidities Dataset by Pablo Ormeño-Arriagada, Gastón Márquez, David Araya, Carla Rimassa, Carla Taramasco

    Published 2025-01-01
    “…The dataset obtained from the EPIVIGILA system and the Chilean Epidemiological Surveillance Process contains information on over 6,000,000 patients, but, like many current datasets, it suffers from class imbalance. To address this issue, we applied various machine learning algorithms, both with and without sampling methods, and compared them using different classification and diagnostic metrics such as precision, sensitivity, specificity, likelihood ratio positive, and diagnostic odds ratio. …”
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  17. 437

    Generalized robust regression techniques and adaptive cluster sampling for efficient estimation of population mean in case of rare and clustered populations by Mir Subzar, Taghreed Alqurashi, Deeksha Chandawat, Shahid Tamboli, T. A. Raja, Amit Kumar Attri, Shahid Ahmad Wani

    Published 2025-01-01
    “…Abstract Situations when field researchers are tempted to deviate from preselected sampling plan and to include nearby or related units in sample, then adaptive cluster sampling (ACS) offers a nearly completion solution. …”
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  18. 438

    A mathematical model of steel sample stretching: Establishing a unified nature and mechanism of the relationship between deformation stages by Yurchenko Anatoly S., Yurchenko Stepan A.

    Published 2025-01-01
    “…Moreover, the current studies of this issue, despite the fact that they were carried out on the basis of a physical and mathematical approach, could not model the real process of this mechanism due to the fact that they did not find a single essence of this process. …”
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  19. 439

    A Novel Interrupted-Sampling Repeater Jamming Suppression Method Based on Time-Frequency Analysis and Target Sparse Reconstruction by Zijian Wang, Jiamu Li, Wenbo Yu, Yunhua Luo, Zhongjun Yu

    Published 2022-01-01
    “…Interrupted-sampling repeater jamming (ISRJ) is a new kind of coherent jamming for linear frequency modulation (LFM) signals. …”
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  20. 440

    RS-SCBiGRU: a noise-robust neural network for high-speed motor fault diagnosis with limited samples by Sun Fenghao, Li Guofa, He Jialong, Liu Shaoyang

    Published 2025-07-01
    “…To address this issue, this study proposes a frequency-adaptive fault diagnosis method for high-speed motors under small-sample scenarios. …”
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