Showing 821 - 840 results of 2,084 for search '"infrared"', query time: 0.04s Refine Results
  1. 821

    Evidence-Based Cerebral Vasospasm Surveillance by Heather Kistka, Michael C. Dewan, J. Mocco

    Published 2013-01-01
    “…Invasive strategies including brain tissue oxygen monitoring, microdialysis, thermal diffusion, and jugular bulb oximetry are examined. Lastly, near-infrared spectroscopy, a recent addition to the field, is briefly reviewed. …”
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    Article
  2. 822

    Modification of Urushiol Derivatives by Liquid Crystal Epoxy Resin by Gongwen Tang, Zhishan Yan, Linrong Ma, Xin Huang

    Published 2015-01-01
    “…In this study, urushiol-furfural (UFUR) was chosen as an example of urushiol derivatives and a liquid crystal (LC) epoxy resin, tetramethylbiphenyl diglycidyl ether (TMBPDE), was for the first time utilized to modify UFUR. Fourier transform infrared spectroscopy and solid-state 13C nuclear magnetic resonance showed the reactions between TMBPDE and UFUR after the UFUR/TMBPDE composite resin was cured. …”
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  3. 823

    Bedside Assessment of Tissue Oxygen Saturation Monitoring in Critically Ill Adults: An Integrative Review of the Literature by Carol Diane Epstein, Karen Toby Haghenbeck

    Published 2014-01-01
    “…The noninvasive measurement of tissue oxygen saturation is based on near-infrared spectroscopy (NIRS), an optical method of illuminating chemical compounds which absorb, reflect, and scatter light directed at that compound. …”
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  4. 824

    Vanadium Pentoxide Nanoparticles Doped ZnO: Physicochemical, Optical, Dielectric, and Photocatalytic Properties by Imen Massoudi, Ridha Hamdi, Amani Rached, Zainah A. AlDhawi, Fatimah M. Alobaidan, Hawra M. Alhamdan, Ghadeer A. Almohammed Ali, Fatimah E. Almuslim, Amor Ben Ali

    Published 2023-01-01
    “…The prepared samples were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy combined with energy-dispersive spectroscopy, and UV-visible spectroscopy. …”
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    Article
  5. 825

    SULFATE MINERALIZATION IN A TUNNEL OF THE PYATIGORSKY PROVAL CAVE, NORTH CAUCASUS by O.Ya. Chervyatsova, A.V. Kasatkin, N.V. Chukanov, F. Nestola

    Published 2021-03-01
    “…The sulfate minerals include humberstonite K3Na7Mg2(SO4 )6(NO3 )2 •6H2O, sideronatrite Na2 Fe(SO4)2(OH)•3H2O, metasideronatrite Na2 Fe(SO4)2(OH)•H2 O, natrojarosite NaFe3(SO4)2(OH)6 , tamarugite NaAl(SO4)2 •6H2O, and epsomite MgSO4 •7H2O, which were identified by electron probe microanalysis, powder X-ray diffraction and infrared spectroscopy. The presence sulfate sulfur can be related to both the oxidation of sulfide grains, which were found in some samples, and the oxidation of gaseous H2S air oxygen. …”
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  6. 826

    Impact of Additives on Heterogeneous Crystallization of Acetaminophen by Hsinyun Hsu, Lynne S. Taylor, Michael T. Harris

    Published 2018-01-01
    “…The additive/APAP was characterized by differential scanning calorimetry (DSC), and the interfacial molecular interaction was studied by Fourier transform infrared spectroscopy (FTIR). The results indicate that the additive-substrate interaction can change the interfacial growth behavior observed in the additive-APAP binary system. …”
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  7. 827

    Amperometric Biosensor Detecting Dopamine Based on Polypyrrole/Reduced Graphene Oxide/Nickel Oxide/Glassy Carbon Electrode by Shindy Ayu Netania Priyanto, Elly Septia Yulianti, Ahmad Zakiyuddin, Siti Fauziyah Rahman

    Published 2024-01-01
    “…Material characterization was evaluated by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The results obtained indicate that PPy/rGO/NiO/GCE has a detection limit of 0.195 mM and a sensitivity of 25.887 A mM−1 cm−2 for a linear range of 0.01–1 mM.…”
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  8. 828

    Quantitative Analysis of Lorazepam in Pharmaceutical Formulation Through FTIR Spectroscopy by Elaheh Konoz, Amir Hossein Mohsen Sarrafi, Marjaneh Samadizadeh, Samaneh Boreiri

    Published 2012-01-01
    “…A Fourier transform infrared (FTIR) spectrophotometric method was development for the rapid, direct measurement of lorazepam in different pharmaceutical products. …”
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  9. 829

    Enhanced Photocatalytic Property of Cu Doped Sodium Niobate by Jianbin Xu, Feng Zhang, Bingyang Sun, Yingge Du, Guoqiang Li, Weifeng Zhang

    Published 2015-01-01
    “…Cu introduction improved the adsorption property of NaNbO3, judging from the Fourier transform infrared spectra. Moreover, the ultraviolet light excitation in Cu doped sample would accelerate the mineralized process.…”
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  10. 830

    Rapid Geographical Origin Identification and Quality Assessment of Angelicae Sinensis Radix by FT-NIR Spectroscopy by Zhen-yu Zhang, Ying-jun Wang, Hui Yan, Xiang-wei Chang, Gui-sheng Zhou, Lei Zhu, Pei Liu, Sheng Guo, Tina T. X. Dong, Jin-ao Duan

    Published 2021-01-01
    “…The purpose of this study was to develop a methodology for geographical classification of Angelicae Sinensis Radix and determine the contents of ferulic acid and Z-ligustilide in the samples using near-infrared spectroscopy. A qualitative model was established to identify the geographical origin of Angelicae Sinensis Radix using Fourier transform near-infrared (FT-NIR) spectroscopy. …”
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  11. 831

    Structure and Properties of Hydrophobic Aggregation Hydrogel with Chemical Sensitive Switch by Jiufang Duan, Jianxin Jiang

    Published 2017-01-01
    “…The properties of the hydrogels were characterized by infrared spectroscopy, contact angle, and scanning electron microscopy. …”
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  12. 832

    Graphene Oxide as a Nanocarrier for Controlled Loading and Targeted Delivery of Typhonium giganteum Drugs by Xiaohua Gu, Rui Cao, Fu Li, Yan Li, Hongge Jia, Hui Yu

    Published 2018-01-01
    “…The results from thermogravimetric analysis (TG), differential scanning calorimetry (DSC), and Fourier-transform infrared spectroscopy (FTIR) indicate that no interactions occurred between PBC and PLA. …”
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  13. 833

    Green Biodiesel Synthesis Using Waste Shells as Sustainable Catalysts with Camelina sativa Oil by Yelda Hangun-Balkir

    Published 2016-01-01
    “…The catalysts from waste shells were characterized by X-ray powder diffraction, Fourier Transform Infrared Spectroscopy, and Scanning Electron Microscope. …”
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  14. 834

    Optimization by Response Surface Methodology of Biodiesel Production from Podocarpus falcatus Oil as a Cameroonian Novel Nonedible Feedstock by Serges Bruno Lemoupi Ngomade, Raoul Donald Tchuifon Tchuifon, Rufis Fregue Tiegam Tagne, Meme Laloi Tongnang Ngueteu, Hugues Mahouli Patai, George Ndifor-Angwafor Nche, Solomon Gabche Anagho

    Published 2022-01-01
    “…Physicochemical characterization by infrared spectroscopy (FT-IR) and UV visible spectroscopy showed that the free fatty acid (FFA) content of Podocarpus oil was 1.9%, which is less than the maximum of 2% recommended for the application of the one-step alkaline transesterification process. …”
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  15. 835

    Characterization of Functionalized Polyurethane Foam for Lead Ion Removal from Water by Subhashini Gunashekar, Nidal Abu-Zahra

    Published 2014-01-01
    “…The functionalized polyurethane foam was characterized by Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX). …”
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  16. 836

    Preparation of PEO/Clay Nanocomposites Using Organoclay Produced via Micellar Adsorption of CTAB by Ahmet Gürses, Mehtap Ejder-Korucu, Çetin Doğar

    Published 2012-01-01
    “…The aim of this study was the preparation of polyethylene oxide (PEO)/clay nanocomposites using organoclay produced via micellar adsorption of cethyltrimethyl ammonium bromide (CTAB) and their characterisation by X-ray diffraction (XRD), and Fourier transform infrared (FT-IR) spectra, and the investigation of certain mechanical properties of the composites. …”
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  17. 837

    Generation and Characterization of an Atmospheric-Pressure Plasma Jet (APPJ) and Its Application in the Surface Modification of Polyethylene Terephthalate by Hom Bahadur Baniya, Rajendra Shrestha, Rajesh Prakash Guragain, Mohan Bahadur Kshetri, Bishnu Prasad Pandey, Deepak Prasad Subedi

    Published 2020-01-01
    “…The surface roughness of the untreated and plasma-treated PET samples was characterized by contact angle measurement, surface energy analysis, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and atomic force microscopy (AFM).…”
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  18. 838

    Nanosized Zincated Hydroxyapatite as a Promising Heterogeneous Photo-Fenton-Like Catalyst for Methylene Blue Degradation by Van Dat Doan, Van Thuan Le, Thi Thanh Nhi Le, Hoai Thuong Nguyen

    Published 2019-01-01
    “…The prepared catalyst was characterized by various techniques such as X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray, and Fourier transform infrared spectroscopy. The catalytic activity of Zn-HA towards MB and the effects of various experimental factors such as pH, zinc substitution degrees, initial MB concentration, and H2O2 dosage were studied in detail. …”
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  19. 839

    Comparative Study of the Optical and Heat Generation Properties of IR820 and Indocyanine Green by Alicia Fernandez-Fernandez, Romila Manchanda, Tingjun Lei, Denny A. Carvajal, Yuan Tang, Syed Zahid Raza Kazmi, Anthony J. McGoron

    Published 2012-03-01
    “…Near-infrared (NIR) fluorophores are the focus of extensive research for combined molecular imaging and hyperthermia. …”
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  20. 840

    Structural Evolution of Burmese Amber during Petrifaction Based on a Comparison of the Spectral Characteristics of Amber, Copal, and Rosin by Feng Bai, Huifang Liang, Hongting Qu

    Published 2019-01-01
    “…This paper presents a spectroscopic analysis and solubility study of rosin, copal, and Burmese amber samples to reveal the structural changes that occur during amber formation. The infrared spectra indicate that during the long geological process of amber formation, small resin molecules first crosslinked and slowly oxidized, eventually forming a stable organic polymer mixture. …”
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