Showing 241 - 260 results of 660 for search '"Ionization"', query time: 0.04s Refine Results
  1. 241

    The coordination complex formed by oxalic acid and chromate and the mechanism for enhanced photoreduction of Cr(Ⅵ) under visible-light irradiation by GUAN Yingying, WANG Hao, GE Xiaoming, DENG Likai, DENG Bin, MU Yi*, ZOU Jianping*

    Published 2024-02-01
    “…In this study, isothermal titration calorimetry (ITC), theoretical calculations, and electrospray ionization high resolution mass spectrometry (ESI-HRMS) analysis revealed that oxalic acid could complex with chromate to form a Cr(Ⅵ)-oxalate complex via an esterification process at pH≤4. …”
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  2. 242

    Flavonoids in Juglans regia L. Leaves and Evaluation of In Vitro Antioxidant Activity via Intracellular and Chemical Methods by Ming-Hui Zhao, Zi-Tao Jiang, Tao Liu, Rong Li

    Published 2014-01-01
    “…Herein, qualitative and quantitative determination of flavonoids from J. regia leaves was carried out using high performance liquid chromatography coupled with tandem mass spectrometry with electrospray ionization and negative ion detection (HPLC-ESI-MS/MS) by comparison of the retention times and mass spectral fragments with standard substances or related literatures. …”
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  3. 243

    Microscopic Mechanism of the Interaction in the Adsorption of Caramel Pigments onto Rosin-Based Decolorizing Resin for Sugar by WEI Yanhong, WANG Jiaxin, JIAO Li, LIAO Chunyu, LEI Fuhou, LI Wen

    Published 2024-12-01
    “…The focus was on the multidimensional visualization of the micro-mechanism of the interaction in the adsorption of caramels by the rosin-based resin at the molecular, atomic, and electronic levels on the basis of quantum chemical theoretical calculations (including electrostatic potential, electrostatic potential interaction, average local ionization energy, frontier molecular orbitals, independent gradient model, and Hirshfeld surface analyses). …”
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  4. 244

    Occurrence of <i>Salmonella</i> and presumptive <i>Bacillus cereus</i> in sesame products from Swiss retail stores by Karen Barmettler, Sara Boss, Michael Biggel, Roger Stephan

    Published 2025-01-01
    “…The 11 isolates identified by matrix-assisted laser desorption ionization-time of flight were whole-genome sequenced with Illumina technology to confirm the identity of the pathogen, determine its toxin gene profile, and perform panC typing. …”
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  5. 245

    Attosecond metrology of vacuum-ultraviolet high-order harmonics generated in semiconductors via laser-dressed photoionization of alkali metals by Arjun Nayak, Debobrata Rajak, Balázs Farkas, Camilio Granados, Philipp Stammer, Javier Rivera-Dean, Theocharis Lamprou, Katalin Varju, Yann Mairesse, Marcelo F. Ciappina, Maciej Lewenstein, Paraskevas Tzallas

    Published 2025-02-01
    “…This source opens new spectral windows for attosecond spectroscopy, enabling studies of bound-state dynamics in natural systems with low ionization energies, while facilitating the generation of non-classical entangled light states in the visible-VUV.…”
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  6. 246

    Forward‐Looking Study of Solar Maximum Impact in 2025: Effects of Satellite Navigation Failure on Aviation Network Operation in the Greater Bay Area, China by Dabin Xue, Jian Yang, Zhizhao Liu, Wei Cong

    Published 2023-12-01
    “…The Greater Bay Area (GBA), located in the equatorial ionization anomaly region of China, is particularly vulnerable to space weather impacts. …”
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  7. 247

    Global‐Scale Ionospheric Tomography During the March 17, 2015 Geomagnetic Storm by F. S. Prol, T. Kodikara, M. M. Hoque, C. Borries

    Published 2021-12-01
    “…Also, the results show that the tomographic technique is capable of reproducing plasma variabilities during geomagnetically disturbed periods including features such as equatorial ionization anomaly enhancements and depletion. Validation results of this brief study period show that the accuracy of our tomography is better than the Neustrelitz Electron Density Model, which is the model used as background, and physics‐based thermosphere‐ionosphere‐electrodynamics general circulation model. …”
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  8. 248

    Optimization of Extraction Conditions for Determination of Tiliroside in Tilia L. Flowers Using an LC-ESI-MS/MS Method by Aleksandra Pieczykolan, Wioleta Pietrzak, Renata Nowak, Józefina Pielczyk, Karolina Łamacz

    Published 2019-01-01
    “…A new, rapid, simple, sensitive, and selective liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method was developed to determine the content of tiliroside in Tilia L. flowers. …”
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  9. 249

    A CDFT-Based Computational Peptidology (CDFT-CP) Study of the Chemical Reactivity and Bioactivity of the Marine-Derived Alternaramide Cyclopentadepsipeptide by Norma Flores-Holguín, Juan Frau, Daniel Glossman-Mitnik

    Published 2021-01-01
    “…The results represent a new confirmation of the superiority of the MN12SX density functional in the fulfilment of the Janak and ionization energy theorems through the proposed KID procedure. …”
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  10. 250

    Inflammatory Markers Are Positively Associated with Serum trans-Fatty Acids in an Adult American Population by Mohsen Mazidi, Hong-kai Gao, Andre Pascal Kengne

    Published 2017-01-01
    “…TFAs were measured via capillary gas chromatography and mass spectrometry using negative chemical ionization. Analysis of covariance and multivariable-adjusted linear regression models were used to investigate the associations between these parameters, accounting for the survey design. …”
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  11. 251

    Diversity and sex differences in rectal gland volatiles of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae). by Cynthia Castro-Vargas, Gunjan Pandey, Heng Lin Yeap, Michael J Lacey, Siu Fai Lee, Soo J Park, Phillip W Taylor, John G Oakeshott

    Published 2022-01-01
    “…We used solid-phase microextraction (SPME) plus gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detection (GC-FID) to substantially expand rectal gland chemical characterisation of the Queensland fruit fly (Bactrocera tryoni (Diptera: Tephritidae); Qfly). …”
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  12. 252

    Forecasting Global Ionospheric TEC Using Deep Learning Approach by Lei Liu, Shasha Zou, Yibin Yao, Zihan Wang

    Published 2020-11-01
    “…Moreover, typical ionospheric structures, such as equatorial ionization anomaly (EIA) and storm‐enhanced density (SED), are well reproduced in the predicted TEC maps during storm time. …”
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  13. 253

    Degradation of High Concentrations of Anthracene Using White-Rot Wood-Inhabiting Fungi and Investigation of Enzyme Activities by Mohadeseh Khajehzadeh, Masoomeh Ghobad-Nejhad, Hamid Moghimi, Ali Abolhasani Soorki, Yu-Cheng Dai, Jing Si

    Published 2024-09-01
    “…Gas chromatography with flame ionization detector (GC-FID) revealed that four polypores viz., Trametes versicolor v21te, T. versicolor v22da, T. hirsuta, and Oxyporus sp. degraded 64%, 52%, 34%, and 20% of the anthracene, respectively. …”
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  14. 254

    Non-monochromatic laser assist scattering in thermal environment by Saddam Husain Dhobi, Kishori Yadav, Suresh Prasad Gupta, Jeevan Joyti Nakarmi, Ajay Kumar Jha

    Published 2025-02-01
    “…Building on existing research, which primarily explores electron dynamics and ionization processes without considering thermal effects, this work seeks to bridge this research gap by examining the DCS under non-monochromatic laser fields in a thermal environment. …”
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  15. 255

    Development and Validation of Precipitation Enhanced Densities for the Empirical Canadian High Arctic Ionospheric Model by C. Watson, D. R. Themens, P. T. Jayachandran

    Published 2021-10-01
    “…Satellite observations of FUV emissions may be used to infer the characteristics of energetic particle precipitation and subsequently calculate the precipitation‐enhanced ionization rates and ionosphere densities. In order to demonstrate the improvement of E‐CHAIM's ionosphere density representation with the addition of a precipitation component, this paper presents comparisons of E‐CHAIM precipitation‐enhanced densities with ionosphere density measurements of three auroral region incoherent scatter radars (ISRs) and one polar cap ISR. …”
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  16. 256

    Genetic Diversity of Imipenem-Resistant Acinetobacter baumannii Infections at an Intensive Care Unit by Amani Alnimr, Aisha Alamri, Afnan Alsultan

    Published 2020-01-01
    “…The isolates were phenotypically identified by a matrix-assisted laser desorption/ionization time-of-flight- (MALDI-TOF-) based system (VITEK MS), and their susceptibility was tested by the phenotypic-based VITEK 2 system. …”
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  17. 257

    Absorbed Dose Measurements for Teletheraphy Prediction of Superficial Dose Using Halcyon Linear Accelerator by Raymond Njinga, Adeneye Samuel, Akinyode Ajimo, Christopher Olowookere

    Published 2024-07-01
    “…The aim of this study is to verify the variation in the absorbed dose using a water equivalent material.Material and Methods: The plastic phantom was arranged on the couch of the halcyon linear accelerator by Varian with the farmer ionization chamber inserted and connected to the electrometer. …”
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  18. 258

    Development and Validation of UPLC-MS/MS Method for Determination of Enasidenib in Rat Plasma and Its Pharmacokinetic Application by Shuang-long Li, Yong-liang Zhu, Yi Zhang, Shu-han Liu, Xiang-die Wang, Xiang-jun Qiu

    Published 2020-01-01
    “…Under the positive ion electrospray ionization (ESI) source conditions, the mass transfer pairs of enasidenib were monitored by multiple reaction monitoring (MRM) to be m/z 474.2 ⟶ 456.1 and m/z 474.2 ⟶ 267.0, and the IS mass transfer pairs were m/z 285.0 ⟶ 154.0. …”
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  19. 259

    Development of the Storm‐Induced Ionospheric Irregularities at Equatorial and Middle Latitudes During the 25–26 August 2018 Geomagnetic Storm by Iurii Cherniak, Irina Zakharenkova

    Published 2022-02-01
    “…Storm‐induced penetration electric fields created favorable conditions for strong fountain effect uplifted the equatorial ionosphere, enhancement of the equatorial ionization anomaly (EIA), and postsunset EPBs generation. …”
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  20. 260

    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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