Showing 6,981 - 7,000 results of 8,230 for search 'Optimal detection methods', query time: 0.24s Refine Results
  1. 6981

    Identification of high-risk COVID-19 patients using machine learning. by Mario A Quiroz-Juárez, Armando Torres-Gómez, Irma Hoyo-Ulloa, Roberto de J León-Montiel, Alfred B U'Ren

    Published 2021-01-01
    “…Furthermore, we show that our method can be extended to provide optimal estimators for hypothesis-testing techniques commonly-used in biological and medical statistics. …”
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  2. 6982

    Resistin alleviates lipopolysaccharide-induced inflammation in bovine alveolar macrophages by activating the AMPK/mTOR signaling pathway and autophagy by Xiaoping Ma, Aining Yang, Xiaoben Fan, Hong Liu, Yu Gu, Zhisheng Wang, Hongrui Guo, Jing Fang, Hengmin Cui, Liping Gou, Junliang Deng, Dongjie Cai, Zhicai Zuo

    Published 2024-10-01
    “…Our study aimed to assess the effects of RETN treatment on autophagy and the underlying molecular and biological mechanisms in bovine alveolar macrophages (BAMs). Methods: The optimal concentration of RETN + lipopolysaccharide (LPS) on macrophages was screened and then used to co-culture with alveolar macrophages. …”
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  3. 6983

    Mutational analysis and protein expression of PI3K/AKT pathway in four mucinous cystadenocarcinoma of the breast by Yan Zheng, Huaxiao Tang, Qian Liu, Yujie Zhang, Peng Zhao, Shukun Zhang, Chengqin Wang

    Published 2025-05-01
    “…Its molecular characteristics, prognosis, and treatment protocols are not well understood, and there is a lack of consensus concerning the optimal management of this condition. Methods Four cases of clinical and pathological data were collected from 2018 to 2024. …”
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  4. 6984

    Ultrasonic Extraction-Gas Chromatography-Mass Spectrometry for Determination of Eight Organophosphorus Flame Retardants in Coatings by ZHANG Ying, LI Yi, CHEN Yezi, WANG Xutao

    Published 2022-01-01
    “…A method for the simultaneous determination of eight organophosphorus flame retardants (OPFRs) in coatings is developed with ultrasonic extraction for preprocessing and gas chromatography-mass spectrometry (GC-MS).The comparison and optimization of experimental conditions in the ultrasonic extraction process indicate that acetone should be taken as the extraction solvent,and the extraction temperature and time should be set to 30 ℃ and 15 min,respectively;when the extraction is repeated twice,the recovery is good.Quantitative analysis is performed by GC-MS with selective ion scanning,with the linear range of the standard preparation curves being 10~1 000 ng/mL.The results demonstrate that the correlation coefficients of linear regression equations for eight OPFRs are not less than 0.990 4.The detection limits of the method are between 0.04 and 0.26 ng/mL,with the recovery of 79.3%~112.0%,and the relative standard deviations are less than or equal to 6.4%.The application of the method to the determination of OPFRs in coating products from five enterprises shows that TCEP is detected in samples of only one enterprise,with a concentration of 15.22 ng/mL.…”
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  5. 6985

    Enhancing Corn Image Resolution Captured by Unmanned Aerial Vehicles With the Aid of Deep Learning by Emilia Alves Nogueira, Bruno Moraes Rocha, Gabriel da Silva Vieira, Afonso Ueslei da Fonseca, Juliana Paula Felix, Antonio Oliveira-Jr, Fabrizzio Soares

    Published 2024-01-01
    “…UAVs provide efficient monitoring and sustainable methods, enabling farmers to gather precise data on crop health and yield potential. …”
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  6. 6986

    A Developed Electromembrane Technique Based on Flat Electrospun Membrane Coupled with Gas-chromatography for the Determination of Phthalates in Different Water Samples by Afsaneh Mollahosseini, Mahsa Konh

    Published 2019-11-01
    “…The polyurethane-membrane was prepared by electrospinning method and used in EME. Affecting parameters on membrane preparation were optimized by Taguchi design. …”
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  7. 6987

    Image Reconstruction Algorithm Based on Spectral Projected Gradient Pursuit for Electrical Capacitance Tomography by WANG Li-li, LIU Hong-bo, CHEN De-yun, CHEN Feng

    Published 2018-08-01
    “…Accuracy and speed are important indicators to detect the image reconstruction algorithm for electrical capacitance tomography. …”
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  8. 6988
  9. 6989

    Screening for severe coronary stenosis in patients with apparently normal electrocardiograms based on deep learning by Zhengkai Xue, Shijia Geng, Shaohua Guo, Guanyu Mu, Bo Yu, Peng Wang, Sutao Hu, Deyun Zhang, Weilun Xu, Yanhong Liu, Lei Yang, Huayue Tao, Shenda Hong, Kangyin Chen

    Published 2024-11-01
    “…Consequently, these patients might miss the optimal window for treatment. Methods We aimed to develop an effective model to distinguish severe coronary stenosis from no or mild coronary stenosis in patients with apparently normal ECGs. …”
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  10. 6990

    Application of Standard HSQC-ME Pulse Sequence on Benchtop NMR Devices for Quantitative Applications by Klaudia Adels, Bernd Diehl, Margit Schulze, Yulia Monakhova

    Published 2025-01-01
    “…The HSQC-ME NMR spectroscopic method was characterized by measurement uncertainty below 4% and limits of detection below 3 mg/mL for 2-h measurement time. …”
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  11. 6991

    Fault diagnosis technology for three-level inverter based on ICEEMDAN-FE and SVM by CAO Ruijun, GUO Qiyi

    Published 2023-01-01
    “…First, the detection signal is supplied at three-phase load voltage, which was converted into α-β phase voltage by Concordia to reduce the dimension of the eigenvector. …”
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  12. 6992

    Separation and Determination of Some Organic Acids in Dry Calyces of Iraqi Hibiscus Sabdariffa Linn by Baghdad Science Journal

    Published 2015-06-01
    “…A new reversed phase- high performance liquid chromatographic (RP-HPLC) method with Ultraviolet-Visible spectrophotometry has been optimized and validated for the simultaneous extraction and determination of organic acids present in Iraqi calyces of Hibiscus Sabdraffia Linn. …”
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  13. 6993

    ViTAU: Facial paralysis recognition and analysis based on vision transformer and facial action units by Jia GAO, Wenhao CAI, Junli ZHAO, Fuqing DUAN

    Published 2025-02-01
    “…This study proposes an innovative method that combines the vision transformer (ViT) model with an action unit (AU) facial region detection network to automatically recognize and analyze facial paralysis. …”
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  14. 6994

    Peak alpha frequency and alpha power spectral density as vulnerability markers of cognitive impairment in Parkinson’s disease: an exploratory EEG study by Yuqing Zhao, Yuqing Zhao, Jiayu Cai, Jian Song, Jian Song, Haoran Shi, Weicheng Kong, Xinlei Li, Wei Wei, Xiehua Xue, Xiehua Xue

    Published 2025-04-01
    “…These findings underscore regional QEEG’s utility in PD cognitive assessment, though sensitivity limitations warrant optimization.…”
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  15. 6995

    Cost-effectiveness of FIT and a FIT-based model to optimise symptomatic diagnosis of colorectal cancer: health economic modelling for the COLOFIT project by Linda Sharp, Sarah Bailey, Colin Rees, Willie Hamilton, Dawn Craig, Joe West, David Humes, Gary Abel, James Turvill, Brian Nicholson, Chloe Thomas, Jim Chilcott, Colin Crooks, Olena Mandrik, John Whelpton

    Published 2025-06-01
    “…We assessed the cost-effectiveness of COLOFIT compared with FIT and investigated optimal risk thresholds.Methods An individual patient-level simulation model was developed, with synthetic populations constructed from data used to validate COLOFIT. …”
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  16. 6996

    Multiscale-Band K-Distribution Model for Molecules in High-Temperature Gases by Lei Shi, Yuyue Zhang, Fangyan Li, Yuefan Du, Bo Yao

    Published 2022-01-01
    “…In the model, the 7-point Gauss–Lobatto method is employed to obtain the optimized absorption coefficients. …”
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  17. 6997

    Extraction and Analysis of Strontium in Water Sample Using a Sr2+ Selective Polymer as the Absorbent Phase by Rongjian Ying

    Published 2015-01-01
    “…The correlation coefficient was found to be 0.9947. Under the optimized conditions, the concentrations of Sr2+ in four water samples were detected by the developed method. …”
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  18. 6998

    Cloning of lactoferrin gene of mice and the difference of lactoferrin gene expression in mammary gland at different lactation stages by WANG Yi-zhen, HAN Fei-fei, HUANG Hai-qing

    Published 2004-01-01
    “…Based on the lactoferrin gene clone, we successfully constructed an optimal semi-quantitative RT-PCR method. Using β-actin as inner control, we detected the difference in expression of lactoferrin gene at different lactation stages of mice. …”
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  19. 6999

    In vitro propagation of virus-free yacon (Smallanthus sonchifolius) by YANG Xu, JIANG Wei-mei, DING Bing-yang

    Published 2006-01-01
    “…The optimal proliferating shoot cultures medium from stems was MS supplemented with BAP 1 mg·L<sup>-1</sup> and NAA 0.1 mg·L<sup>-1</sup>. …”
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  20. 7000

    Storage damage of cold-stored whole blood in CPDA maintenance fluid during the whole effective storage period by Yingyu He, Yiquan Zhang, Wanbing Liu, Lidong Zhang, Yingkai Xu, Zihan Yuan, Junying Li, Lei Liu, Fangxiong Cheng

    Published 2025-08-01
    “…This study will involve monitoring cold-stored whole blood (CS-WB) to assess variations in the concentration and activity of each component during in vitro storage.Methods20 bags of WB (400 mL each) from healthy donors were stored at (4 ± 2) °C. …”
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