Showing 2,301 - 2,320 results of 4,095 for search '"spectroscopy"', query time: 0.06s Refine Results
  1. 2301

    Attapulgite Modified with Silane Coupling Agent for Phosphorus Adsorption and Deep Bleaching of Refined Palm Oil by Guangyan Tian, Yuru Kang, Bin Mu, Aiqin Wang

    Published 2014-01-01
    “…The effects of different silane coupling agents on the structure, surface charges and pore structure of ATP were investigated by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, Zeta potential and nitrogen adsorption-desorption isotherm techniques, and the decolourization efficiency of the modified ATP was evaluated by UV-Vis absorbance and Lovibond colour. …”
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  2. 2302

    Exploring a natural fiber extracted from henequen plant leaves: A sustainable innovation for reinforcement in composite materials by Thandavamoorthy Raja

    Published 2025-03-01
    “…TGA results indicated thermal stability up to 350 °C, while UV spectroscopy showed effective UV absorption, particularly in the 270–280 nm range. …”
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  3. 2303

    The Effect of Tungsten Addition on Characteristics and Corrosion Performance of Plasma Electrolytic Oxidation Coating Created on Titanium by R. Yazdekhasti, K. Raeissi

    Published 2024-12-01
    “…The results of the electrochemical impedance spectroscopy test showed the strong barrier performance of tungsten-containing coatings and their stability with the passage of immersion time. …”
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  4. 2304

    Characterization of the expanded austenite developed on AISI 316 LM steel by plasma nitriding by Keddam M., Thiriet T., Marcos G., Czerwiec T.

    Published 2017-01-01
    “…Different experimental techniques such as: optical microscopy (OM), X- ray diffraction (XRD ) and glow discharge optical emission spectroscopy (GDOES) were used to characterize the expanded austenite layer formed at the surface of AISI 316 LM stainless steel. …”
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  5. 2305

    Preparation of Two-Layer Anion-Exchange Poly(ethersulfone) Based Membrane: Effect of Surface Modification by Lucie Zarybnicka, Eliska Stranska, Jana Machotova, Gabriela Lencova

    Published 2016-01-01
    “…The membranes were tested from the point of view of water content, ion-exchange capacity, specific resistance, permselectivity, FT-IR spectroscopy, and SEM analysis. It was found that the two-layer anion-exchange membranes after the extraction using tetrahydrofuran or toluene exhibited smooth and porous surface layer, which resulted in improved ion-exchange capacity, electrical resistance, and permselectivity of the membranes.…”
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  6. 2306

    Enhanced Adsorption Performance of Biochar Derived from Palm Empty Fruit Bunches for Wastewater Treatment by Febrina Wetri, Awaluddin Amir, Saryono Saryono, Helwani Zuchra, Suraya Nabella, Abdillah Nuryasin, Sirlyana

    Published 2025-01-01
    “…These results were supported by data on functional groups and pore structure, observed using Fourier Transform Infrared (FTIR) spectroscopy and the Brunauer-Emmett-Teller (BET) method.…”
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  7. 2307

    Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics by Furkan Ayhan, Markus Ludwig, Tobias Herr, Victor Brasch, Luis Guillermo Villanueva

    Published 2025-01-01
    “…Nonlinear optics is the precursor for many of the modern-day applications of photonics, including femtosecond pulse synthesis, precision spectroscopy, and metrology. In the last decade, nanophotonic waveguides have not only boosted the efficiencies of nonlinear effects but also unlocked new degrees of freedom in the design process and enabled the monolithic integration of multiple nonlinear devices. …”
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  8. 2308

    Improvement of Interfacial Shear Strength of Mendong Fiber (Fimbristylis globulosa) Reinforced Epoxy Composite Using the AC Electric Fields by Heru Suryanto, Eko Marsyahyo, Yudy Surya Irawan, Rudy Soenoko, Aminudin

    Published 2015-01-01
    “…Structure of the epoxy was studied by X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), and Scanning Electron Microscope, respectively. …”
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  9. 2309

    Dibohemamines I–O from Streptomyces sp. GZWMJZ-662, an endophytic actinomycete from the medicinal and edible plant Houttuynia cordata Thunb. by Dong-Yang Wang, Ming-Xing Li, Yan-Chao Xu, Peng Fu, Wei-Ming Zhu, Li-Ping Wang

    Published 2025-01-01
    “…Their structures were elucidated through detailed spectroscopic analysis, encompassing high-resolution electrospray ionization mass, nuclear magnetic resonance, infrared radiation, ultraviolet–visible, and electronic circular dichroism spectroscopy. Dibohemamine I (1) exhibited selective cytotoxic effects against the cancer cell lines 786-O and GBC-SD among the 18 cell lines evaluated, with the half-inhibitory concentration values of 3.24 ± 0.20 and 7.36 ± 0.41 μM, respectively. …”
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  10. 2310

    Polyaniline Supported Ag-Doped ZnO Nanocomposite: Synthesis, Characterization, and Kinetics Study for Photocatalytic Degradation of Malachite Green by Fikradis Habtamu, Sintayehu Berhanu, Teshome Mender

    Published 2021-01-01
    “…XRD, UV-Vis, and FT-IR spectroscopy were employed to study the crystal size, bandgap energy, and bond structure of as-synthesized nanocomposites. …”
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  11. 2311

    Characterization of Boride Coatings on AISI 8620 Steels without and with Hydrogen Permeation by Marco Antonio Doñu Ruiz, Ernesto David García Bustos, Tomas de la Mora Ramirez, David Sánchez Huitron, Víctor Jorge Cortes Suarez, Noé López Perrusquia

    Published 2022-01-01
    “…Specimens borided without and with hydrogen were characterized by scanning electron microscopy with energy dispersive spectroscopy and X-ray diffraction. The experimental techniques of the Vickers microhardness and three-point bending were used. …”
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  12. 2312

    Early life stress shifts critical periods and causes precocious visual cortex development. by Janet Poplawski, Tony Montina, Gerlinde A S Metz

    Published 2024-01-01
    “…ELS also drove lasting changes in visual cortex mRNA expression affecting genes linked to psychiatric disease risk, with hemispheric asymmetries favoring the right side. NMR spectroscopy and a metabolomics approach revealed that ELS was accompanied by activated energy metabolism and protein biosynthesis. …”
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  13. 2313

    Tribological properties of silicon carbide ceramic surfaces modified by polishing, grinding and laser radiation by A. M. Abdelmagid, E. G. Orlova, D. S. Nikitin, R. S. Tsygankov, O. S. Korneva, M. A. Rudmin, D. V. Feoktistov

    Published 2025-01-01
    “…Abstract In this work, we experimentally studied the influence of the texture of silicone carbide (SiC) ceramics formed by traditional (grinding and polishing) and promising (laser radiation) treatment methods on tribological properties (the friction coefficient and wear rate). Raman spectroscopy was used to study the phase composition. …”
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  14. 2314

    Effect of Ar/CH4 Mixture Ratio on Properties of Ag/C:H Nanocomposite Prepared by DC Sputtering by E. Mohsen Soltani, Z. Ghorannevis, M. Shirazi

    Published 2013-01-01
    “…Effect of Ar/CH4 gas mixture ratios was investigated on optical and structural properties of Ag/C:H films by FTIR spectroscopy analysis, X-Ray diffractometry (XRD), scanning electron microscopy (SEM), and atomic force microscopy (AFM), respectively. …”
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  15. 2315

    Effective and selective removal of aromatic amines from water by Cu-treated chitosan/alumina nanocomposite by Siamak Zavareh, Armen Avanes, Parizad Beiramyan

    Published 2017-03-01
    “…The study on the chemical structure of the modified adsorbent by Fourier transform infrared spectroscopy showed the formation of a complex between amine groups of the chitosan and Cu(II) on the adsorbent surface. …”
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  16. 2316

    Long-lived Charge-Transfer States in 9-Aryl-Acridinium Ions; A Critical Reinvestigation by Jan W. Verhoeven, Hendrik J. van Ramesdonk, Hong Zhang, Michiel M. Groeneveld, Andrew C. Benniston, Anthony Harriman

    Published 2005-01-01
    “…The possible consequences of this observation are discussed and the tenability of the claims made is investigated via time resolved spectroscopy of a closely related system with spectroscopic characteristics allowing more solid identification of the actual photophysical events taking place. …”
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  17. 2317

    Magnetic Phase Separation and Magnetic Moment Alignment in Ordered Alloys FE65Al35−xMx (Mx = Ga, B; x = 0; 5 at.%) by E. V. Voronina, A. K. Arzhnikov, A. I. Chumakov, N. I. Chistyakova, A. G. Ivanova, A. V. Pyataev, A. V. Korolev

    Published 2018-01-01
    “….%) alloys are investigated using X-ray diffraction, Mössbauer spectroscopy, and magnetic measurements. The behavior of the magnetic characteristics and Mössbauer spectra of the binary alloy Fe65Al35 and the ternary alloy with gallium addition Fe65Al30Ga5 is explained in terms of the phase separation into two magnetic phases: a ferromagnetic one and a spin density wave. …”
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  18. 2318

    Peculiarities of natural honey classification in the course of forensic commodity examination by P. P. Kanivets

    Published 2023-12-01
    “…The scientific article describes the peculiarities of classification of natural honey during forensic commodity examination, reveals the methodological aspects of forensic commodity examination of honey, identifies theoretical and practical problems of commodity research of honey, reveals the commodity characteristics of honey and its defects, instrumental methods of honey examination, in particular gas and liquid chromatography, spectroscopy, solid-phase microextraction, describes the main microbiological methods that can be used in the study of honey, offers a systematisation of information data on the peculiarities of forensic examination of honey with regard to its characteristic defects. …”
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  19. 2319

    Perturbations of Dipole Decay Dynamics Induced by Plasmonic Nano-antennas – A Study within the Discrete Dipole Approximation by Stefania D'Agostino, Fabio Della Sala, Lucio Claudio Andreani

    Published 2015-04-01
    “…Applications span from strong coupling studies to time-resolved fluorescence spectroscopy.…”
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  20. 2320

    Low-cost seaweed biomass treatment with formaldehyde for cationic dyes removal from aqueous solutions by D. M. Polanco-Gamboa, Mohamed Abatal, D. M. Polanco-Gamboa, Claudia Aguilar, Francisco Anguebes-Fransechi, Eder C. Lima, Joel Vargas, Ismeli Alfonso, A Quiroz

    Published 2024-09-01
    “…The surface and morphology of modified biomass was characterized by the point of zero-charge (pH PZC ), Brunauer–Emmett–Teller (BET) surface area ( S BET ), scanning electron microscopy (SEM/EDS), and Fourier-transform infrared spectroscopy. The equilibrium data were best described by the Langmuir and Freudnlich isotherm model for MB and BCB, respectively. …”
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