Showing 441 - 460 results of 1,341 for search '"column"', query time: 0.05s Refine Results
  1. 441

    Beamforming Feedback-Based Line-of-Sight Identification Toward Firmware-Agnostic WiFi Sensing by Hiroki Shimomura, Koji Yamamoto, Takayuki Nishio, Akihito Taya

    Published 2024-01-01
    “…Therefore, the proposed BFF-based method extracts features from the first-column vectors of the BFM. In addition, SSGs were leveraged to improve the accuracy. …”
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  2. 442

    Trace analysis method for the determination of organophosphate esters based on solid-phase extraction-UPLC-MS/MS and its application to blood by Luyao Hang, Lihong Duan, Lixin Yang, Hongmei Shi

    Published 2025-08-01
    “…The serum samples were cleaned-up by an HMR extraction column, and the separation of the targets was performed on an Acquity BEHC18 column with a gradient elution using methanol and 5 mmol/L aqueous ammonium acetate as the mobile phases, and finally, the determination was carried out. …”
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  3. 443

    Antimicrobial Evaluation of Anthraquinones and Preanthraquinone from the Root Extract of Aloe kefaensis by Tamiru Fayisa Diriba, Negera Abdissa, Melaku Meshesha, Soressa Gershe Ayana

    Published 2024-01-01
    “…Due to similarity in their TLC profile, the acetone and dichloromethane extracts were combined and subjected to silica gel column chromatography for fractionation and isolation of the compounds. …”
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  4. 444

    Effect of Peat Addition on Sorption and Leaching of Triazole Fungicides in Oran Soils by Kahina Aït Hammi, Elías Nieto-Latorre, María D. Ureña-Amate, María M. Socías-Viciana, Hafida Miloudi, Naoufal Debbagh-Boutarbouch

    Published 2019-01-01
    “…The batch equilibration technique was applied for adsorption experiments, and leaching was tested through soil column simulated experiments under laboratory conditions. …”
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  5. 445

    Bioassay-Guided Fractionation, ESI-MS Scan, Phytochemical Screening, and Antiplasmodial Activity of Afzelia africana by Bright Yaw Vigbedor, Jonathan Osei-Owusu, Ralph Kwakye, David Neglo

    Published 2022-01-01
    “…The methods employed include column chromatographic fractionation, phytochemical screening, antiplasmodial activity (malaria SYBER green assay (MSF)), and ESI-MS profile (full ESI-MS scan). …”
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  6. 446

    Improvement of Soybean Oil Solvent Extraction through Enzymatic Pretreatment by F. V. Grasso, P. A. Montoya, C. C. Camusso, B. G. Maroto

    Published 2012-01-01
    “…Extractions were carried out in a column, oil content was determined according to time, and a mathematical model was developed to describe the system. …”
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  7. 447

    Experimental Study on Unconfined Compressive Strength of Basalt Fiber Reinforced Clay Soil by Lei Gao, Guohui Hu, Nan Xu, Junyi Fu, Chao Xiang, Chen Yang

    Published 2015-01-01
    “…About the reinforcement mechanism, the fiber and soil column-net model is proposed in this paper. Based on this model and SEM images, the effect of fiber content and length is related to the change of fiber-soil column and formation of effective fiber-soil net.…”
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  8. 448
  9. 449

    Determination of Ketotifen Fumarate in Syrup Dosage Form by High Performance Liquid Chromatography by Mohammed Ali Salih, Dlivan Fattah Aziz, Salar Ibrahim Ali

    Published 2020-12-01
    “…l in 500 ml of methanol) at a flow rate of 1.5 mL/min (mobile phase A 40 %:mobile phase B 60%) at column temperature using 40 ° C, the retention time for ketotifen fumarate was 6.4±0.5 min. …”
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  10. 450

    A Study of Member Displacement According to Seasonal Climate of the Sungnyemun Gate, a Korean Wooden Architectural Heritage Site by Hyowon Seo, Hana Lee, Sunghan Kim

    Published 2025-01-01
    “…This study analyzes the results of a displacement measurement of the Sungnyemun Gate’s structural members, such as column, girder, and hip rafter, carried out by the National Institute of Cultural Heritage for about 10 years from December 2013 to October 2022. …”
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  11. 451

    Seismic Behavior of the Removable Links in Eccentrically Braced Frames with Semirigid Connections by Qiang Shi, Shilin Yan, Xinwu Wang, Haisu Sun, Yan Zhao

    Published 2020-01-01
    “…By analyzing the strain of the bolts, it is found that the bolt strains of the joints of link-to-beam are the highest, while the bolt strains of the joints of beam-to-column and column-to-brace are smaller. This structure system shows higher energy dissipation capacity and good economic benefits.…”
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  12. 452

    Single Standard Substance for the Simultaneous Determination of Eleven Components in the Extract of Paeoniae Radix Alba (Root of Paeonia lactiflora Pall.) by Menglan Shen, Qiaoyan Zhang, Luping Qin, Binjun Yan

    Published 2021-01-01
    “…Moreover, the repeatability and robustness of the RCFs were studied with different column temperatures, detection wavelengths, flow rates, column types, and instruments. …”
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  13. 453

    Copper Adsorption Using Hydroxyapatite Derived from Bovine Bone by Lingchang Kong, Xin Liu, Guocheng Lv, Tianming Liu, Peijun Zhang, Yuxin Li, Bin Chen, Libing Liao

    Published 2022-01-01
    “…At C/C0 = 0.5, the number of pore volume (PV) reached 450. The batch and column experiments also revealed that the overall adsorption process followed up the monolayer chemisorption. …”
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  14. 454

    How Much PEEP Does High Flow Deliver via Tracheostomy? A Literature Review and Benchtop Experiment by Martin Thomas, Riddhi Joshi, Grant Cave

    Published 2021-01-01
    “…The tracheostomy tube was partially immersed in water to give rise to a column of water within the inner surface of the tube. …”
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  15. 455

    Emissions of Airport Monitoring with Solar Occultation Flux-Fourier Transform Infrared Spectrometer by Xin Han, Xiangxian Li, Minguang Gao, Jingjing Tong, Xiuli Wei, Sheng Li, Shubin Ye, Yan Li

    Published 2018-01-01
    “…CO, CO2, C2H4, and CH2O are selected as the target gases and are quantitatively analyzed with the nonlinear least squares method to get the column concentration. Then, the flux can also be calculated by linking the wind velocity and direction with the column concentration. …”
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  16. 456

    Sonographic assessment of post-intubation laryngeal obstruction as predictor of weaning outcome by Mohamed Taher Anwar, Amro Ahmed Esmat, Mohamed Elsaid Ali Hassan Elfeqy

    Published 2025-01-01
    “…Aim To evaluate the effectiveness of sonar assessment of laryngeal air column width difference to predict post-extubation upper airway obstruction and its relation to cuff leak volume. …”
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  17. 457

    Rapid Determination of 26 Pyrrolizidine Alkaloids in Milk Power and Liquid Milk by Solid Phase Extraction Combined with Ultra-high Performance Liquid Chromatography-Tandem Mass Spe... by CHEN Yankai

    Published 2024-12-01
    “…The samples were extracted with 5% trichloroacetic acid solution, cleaned up on a polymer cation exchange-solid phase extraction (PCX-SPE) column, separated on an ACQUITY HSS T3 column with gradient elution using a mobile phase consisting of methanol and 0.1% formic acid in water, detected using an electrospray ionization (ESI) in the positive ion mode with multiple reaction monitoring (MRM), and finally quantified by the external standard method. …”
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  18. 458

    Analyses of Total Alkaloid Extract of Corydalis yanhusuo by Comprehensive RP × RP Liquid Chromatography with pH Difference by Xiaodong Wei, Hongling Shen, Lijun Wang, Qingyan Meng, Wenjie Liu

    Published 2016-01-01
    “…The first-dimension separation is carried out using methanol and water containing 1.0% ammonium hydroxide and a strong base-resistant RP column, which afforded a peak capacity of 94. The second-dimension analysis is carried out with a surface positive charge column providing a peak capacity of 205 using a mobile phase consisting of acetonitrile and water with 0.15% formic acid. 2D analyses of total alkaloid extract from C. yanhusuo afford a total peak capacity of 9090. …”
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  19. 459

    Simultaneous Determination of Malachite Green, Chloramphenicols, Sulfonamides, and Fluoroquinolones Residues in Fish by Liquid Chromatography-Mass Spectrometry by Yongping Chen, Sudong Xia, Xianqin Han, Zhiru Fu

    Published 2020-01-01
    “…The selection of extraction reagents was optimized using different types of microfiltration membrane, mobile phase, and LC column. Samples were extracted using 0.4% hydrochloric acid in acetonitrile and ethyl acetate and then were cleaned up using solid-phase extraction Cleanert Alumina N columns (500 mg) and Oasis hydrophilic-lipophilic balance (HLB) cartridges. …”
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    Article
  20. 460

    Design and Shear Bearing Capacity Calculation of All-Welded Irregular Joints in Steel Traditional Chinese Buildings by Zhanjing Wu, Xinwu Wang, Xin Bu, Jinshuang Dong

    Published 2025-01-01
    “…The test results indicate that the failure mode of the specimens involves shear deformation in the lower core area, with final failure due to crack formation in the weld at the junction between the column wall and the beam flange. As the axial compression ratio increases, the bearing capacity of the joint decreases. …”
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