Showing 2,161 - 2,180 results of 4,095 for search '"spectroscopy"', query time: 0.08s Refine Results
  1. 2161

    The Influence of Chemically Treated Hemp Fibre on the Mechanical Behavior and Thermal Properties of Polylactic Acid Made with FDM by N. I. Haroon Rashid, R. Meenakshi Reddy, A. R Venkataramanan, Melvin V. D. Poures, A. Thanikasalam, Ashraf Elfasakhany, Agonafir Alemayehu

    Published 2022-01-01
    “…In this research, the effects of alkaline and silane treatment were demonstrated using mechanical testing and Fourier transform infrared spectroscopy (FTIR). DSC and TGA tests were used to assess the materials’ chemical compositions and thermal properties. …”
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  2. 2162

    Observation of anti-PT-symmetry and higher-order exceptional point PT-symmetry in ternary systems for single-mode operation by Milad Jahangiri, Gholam-Mohammad Parsanasab, Leila Hajshahvaladi

    Published 2025-02-01
    “…Our proposed microlasers and their distinct properties based on photonic exceptional points may find use in a wide variety of applications such as ultrahigh precision sensing, spectroscopy, and optical on-chip filters and lasers.…”
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  3. 2163

    NEW TRANS-1,2- CYCLOHEXYLDIAMINO-NN,N’N’ (CH2CO2)(CH2CO2H)3 ANION CONTAINING ADDUCTS AND DERIVATIVES: SYNTHESIS AND INFRARED STUDY by GORGUI AWA SECK, ABOUBACRY SENE, LIBASSE DIOP

    Published 2017-12-01
    “… Five Cyclohexyldiamino-NN, N’N’(CH2CO2)(CH2CO2H)3 anion containing adducts and derivatives with tin, antimony and mercury halides have been synthesized and characterized by infrared spectroscopy. The suggested structures are discrete, the anion behaving as a monodentate or a monochelating ligand: the environments around the metallic centres are trigonal bipyramidal or octahedral.The carboxylic groups and the cation, when involved in extra OH---O, OH----Cl or NH---Cl or O hydrogen bonds may lead to supramolecular architectures. …”
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  4. 2164

    Light-Induced Tyrosine Radical Formation from Ruthenium-Tyrosine Complex Anchored to SnO2 Semiconductor by Raed Ghanem

    Published 2008-01-01
    “…Steady state spectroscopy and flash photolysis measurements were used to study the multistep electron transfer in a supramolecular complex adsorbed on the surface of nanocrystalline SnO2 in order to mimic the function of the tyrosineZ and chlorophyll unit P680 in natural photosystem II (PSII). …”
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  5. 2165

    Effects of Graphene Oxide Dispersion on Salt-Freezing Resistance of Concrete by Yihong Xu, Yingfang Fan

    Published 2020-01-01
    “…Graphene oxide (GO) was characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The mechanical properties and durability of the salt-frozen concrete with different GO contents were examined, and its salt-freezing resistance mechanism was analyzed by microscopic tests. …”
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  6. 2166

    Non-equilibrium solidification and microsegregation in centrifugally cast high speed steel for rolls by Klančnik U., Košec B., Mrvar P., Medved J.

    Published 2018-01-01
    “…The modelled predictions were then compared with differential scanning calorimetry, X-ray diffraction, light and electron microscopy with energy dispersive spectroscopy, all performed on an as-cast roll shell. …”
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  7. 2167

    Design and Photocatalytic Activity of Mesoporous TiO/ZrO Thin Films by Yu. Gnatyuk, N. Smirnova, A. Eremenko, V. Ilyin

    Published 2005-07-01
    “…The structure and optical properties of these films were characterized using TEM, low-angle XRD, DTA/TG measurements, UV—vis spectroscopy and hexane adsorption investigations. It was found that addition of ZrO 2 into the TiO 2 matrix retarded sintering of the films, thereby increasing the specific surface area after treatment up to 500°C. …”
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  8. 2168

    A Study on Glycyrrhiza glabra-Fortified Bread: Predicted Glycemic Index and Bioactive Component by M. Prabhahar, Gomathi K, Prakash S, Sendilvelan S, Saravana Kumar M, Jijina GO, Edwin Geo Varuvel, Haiter Lenin A

    Published 2022-01-01
    “…The functional components of the Glycyrrhiza glabra were analyzed by liquid chromatography-mass spectroscopy (LCMS). The antioxidant study revealed that the extract has high antioxidant potency. …”
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    Article
  9. 2169

    Synthesis of Silver Nanoparticles Using Triticum aestivum and Its Effect on Peroxide Catalytic Activity and Toxicology by Shobha Waghmode, Pooja Chavan, Vidya Kalyankar, Sharada Dagade

    Published 2013-01-01
    “…The effect of a specific variety of plants and how it affects the growth of silver nanoparticles was investigated in our work and it was polydispersed. UV-visible spectroscopy was used to monitor the formation of silver nanoparticles within 15 minutes. …”
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  10. 2170

    Electrical and Physical Characteristics of Silica Nanoparticles in Aqueous Media Affected by Cations Na, Ba and Al by L.S. Andriyko, V.I. Zarko, V.M. Gun'ko, A.I. Marynin, V.V. Olishevskiy, E. Skwarek, W. Janusz

    Published 2015-08-01
    “…The influence of metal cations which have various valences [mono-(Na + ), bi-(Ba 2+ ) and trivalent (Al 3+ )] at different concentrations (0.001–0.1M) on the behaviour of nanosilica (0.5%wt. and 5%wt.) in aqueous media is analyzed using both photon correlation spectroscopy (particle-size distribution) and electrophoresis (zeta potential, ζ). …”
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  11. 2171

    Ion-beam modification of composite based on multi-walled carbon nanotubes and tin dioxide by P. M. Korusenko

    Published 2018-07-01
    “…Using the methods of transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDA), and X-ray photoelectron spectroscopy (XPS), there are analyzed changes in the morphology, phase composition, and chemical state of a composite based on multiwalled carbon nanotubes and tin oxide (SnO2 /MWCNTs) modified by pulsed ion beam of nanosecond duration. …”
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  12. 2172

    Quantification and Classification of Corn and Sunflower Oils as Adulterants in Olive Oil Using Chemometrics and FTIR Spectra by Abdul Rohman, Y. B. Che Man

    Published 2012-01-01
    “…Fourier transform infrared (FTIR) spectroscopy combined with chemometrics has been successfully used for classification and quantification of corn (CO) and sunflower oils (SFOs) in EVOO sets. …”
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  13. 2173

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

    Published 2013-01-01
    “…Lastly, near-infrared spectroscopy, a recent addition to the field, is briefly reviewed. …”
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  14. 2174

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

    Published 2015-01-01
    “…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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  15. 2175

    Comparative biosorption study of Hg (II) using raw and chemically activated almond shell by AA Taha, AHE Moustafa, HH Abdel-Rahman, MMA Abd El-Hameed

    Published 2018-02-01
    “…The biosorbent was characterized using scanning electron microscopy and Fourier transform infrared spectroscopy. To optimize the biosorption conditions pH, adsorbent dose, initial concentration, contact time, stirring speed, and temperature on Hg (II) removal were studied. …”
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  16. 2176

    Removal of Copper(II) Ions from Aqueous Solution Using Biomass by Xue Song Wang, Li Ping Huang, Yuan Li, Jing Chen

    Published 2010-02-01
    “…The biomass was characterized by scanning electron microscopy/X-ray energy dispersive spectroscopy (SEM–EDS) and Fourier-transform infrared spectrometry (FT-IR). …”
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  17. 2177

    Preparation of Al-Mg Alloy Electrodes by Using Powder Metallurgy and Their Application for Hydrogen Production by Wen-Nong Hsu, Teng-Shih Shih, Ming-Yuan Lin

    Published 2014-01-01
    “…Electrochemical polarization impedance spectroscopy (EIS) was employed to evaluate the effect of the ultrasonic field on the reduction of polarization resistance. …”
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  18. 2178

    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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  19. 2179

    A New Approach to Determine Gas Diffusion Coefficients in Porous Solids by EIS: Application for NH3 and CO2 Adsorption on Zirconia and Zeolite Type 5A by Tien-Quang Nguyen, Maja Glorius, Cornelia Breitkopf

    Published 2018-01-01
    “…The transport of carbon dioxide was examined for samples of zeolite type 5A in different hydration states. By impedance spectroscopy measurements, the diffusion coefficient of water vapor at 373 K is estimated to be about 7 x 10-6 cm2/s. …”
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  20. 2180

    An Augmented Classical Least Squares Method for Quantitative Raman Spectral Analysis against Component Information Loss by Yan Zhou, Hui Cao

    Published 2013-01-01
    “…The proposed method was compared with partial least squares (PLS) and principal component regression (PCR) using one example: a data set recorded from an experiment of analyte concentration determination using Raman spectroscopy. A 2-fold cross-validation with Venetian blinds strategy was exploited to evaluate the predictive power of the proposed method. …”
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    Article