Showing 1,781 - 1,800 results of 4,788 for search '"Fourier transform"', query time: 0.08s Refine Results
  1. 1781

    Sonosynthesis of microcellulose from kenaf fiber: optimization of process parameters by Ketabchi, Mohammad Reza, Khalid, Mohammad, Ratnam, Chantara Thevy, Walvekar, Rashmi, Abdullah, Luqman Chuah

    Published 2016
    “…Further, surface morphology, thermal analysis, Fourier transform infrared (FTIR) spectroscopy and X-Ray diffraction (XRD) were also used for design validation. …”
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    Article
  2. 1782

    Structural, optical and sensing properties of ionophore doped graphene based bionanocomposite thin film by Zainudin, Afiq Azri, Yap, Wing Fen, Yusof, Nor Azah, Omar, Nur Alia Sheh

    Published 2017
    “…The structural and optical properties of the bionanocomposite thin film was characterized by Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM) and ultraviolet-visible near infra-red (UV–vis-NIR). …”
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    Article
  3. 1783

    Investigation of structural, optical and antibacterial activity of zinc oxide nanoparticles (ZnONPs) by Ribut, Siti Huzaimah, Che Abdullah, Che Azurahanim, Mustafa, Muskhazli, Mohd Yusoff, Mohd Zaki

    Published 2017
    “…To acquire the morphology and particle size of the samples, Field Emission Scanning Electron Microscopy (FESEM) was used plus the Energy Dispersive X-ray (EDX) to obtain the elemental composition of ZNONPs. Fourier Transform Infrared Spectroscopy (FTIR) was to determine the functional group of the samples. …”
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    Conference or Workshop Item
  4. 1784

    Chemical analysis and consistency characterization of domestic waste bio-asphalts by Tayh, Sady Abd, Muniandy, Ratnasamy, Hassim, Salihudin, Mohd Jakarni, Fauzan

    Published 2017
    “…Samples of the DWBO-modified binders compared to base binder were tested by running the rotational viscosity (RV). Moreover, the fourier transform infrared (FTIR) spectroscopy as well as elemental analysis tests were utilized to validate the chemical compositions and bond initiations that caused changes in stiffness and viscosity of the asphalt modified with DWBO from those of base asphalt binders. …”
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    Conference or Workshop Item
  5. 1785

    Lipase-catalyzed preparation of galactose oleate ester in ionic liquid by Mohd Saupi, Hanim Salami

    Published 2012
    “…Galactose oleate ester was purified and characterized by thin layer chromatography (TLC), fourier transform-infrared spectroscopy (FT-IR), high performance liquid chromatography (HPLC), direct injection-mass spectrometry (DI-MS), liquid chromatography-mass spectrometry (LC-MS) and nuclear magnetic resonance (NMR). …”
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    Thesis
  6. 1786

    Human activities detection and classification based on micro-Doppler signatures near the baseline of forward scattering radar by Alnaeb, Ali, Raja Abdullah, Raja Syamsul Azmir, Salah, Asem Ahmad Mohamad, Sali, Aduwati, Abdul Rashid, Nur Emileen, Ibrahim, Idnin Pasya

    Published 2018
    “…The signal features of joint time-frequency representations are used for detection, while the support vector machine, which is based on the short-time Fourier transform feature, has been used in the classification process. …”
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    Conference or Workshop Item
  7. 1787

    Fabrication and performance of PSf/CA blend ultrafiltration membrane on effect of different polymer ratio by Wae Abdulkadir Usin, Wan Aisyah Fadilah, Md. Yunos, Khairul Faezah, Hassan, Abdul Rahman, Mohd. Amin, Nor Amaiza

    Published 2018
    “…The effect of different polymer ratio on membrane characteristic are discussed in term of flux permeation, morphology, mechanical strength, fourier transform infrared spectroscopy (FTIR) analysis and flux recovery ratio (FRR). …”
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    Article
  8. 1788

    Fabrication, characterization and cytotoxicity of spherical-shaped conjugated gold-cockle shell derived calcium carbonate nanoparticles for biomedical applications by Kiranda, Hanan Karimah, Mahmud, Rozi, Abubakar, Danmaigoro, Abu Bakar @ Zakaria, Md Zuki

    Published 2018
    “…The synthesized conjugated nanomaterial was characterized for its physicochemical properties using transmission electron microscope (TEM), field emission scanning electron microscope (FESEM) equipped with energy dispersive X-ray (EDX) and Fourier transform infrared spectroscopy (FTIR). However, the intricacy of cellular mechanisms can prove challenging for nanomaterial like Au-CSCaCO3NPs and thus, the need for cytotoxicity assessment. …”
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    Article
  9. 1789

    Cisplatin-loaded graphene oxide/chitosan/hydroxyapatite composite as a promising tool for osteosarcoma-affected bone regeneration by Subbiah, Suresh Kumar, Murugan, Sumathra, Sadasivuni, Kishor Kumar, Rajan, Mariappan

    Published 2018
    “…The prepared composites were characterized for the confirmation of composite formation using Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and X-ray diffraction techniques. …”
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    Article
  10. 1790

    Preparation and physical properties of polypyrrole / zeolite composites by Mohd Tarmizi, Emma Ziezie, Hussein Baqiah, Hussein Abdullah, Talib, Zainal Abidin, Mohamed Kamari, Halimah

    Published 2018
    “…The structural and physical properties of the samples were studied using X-rays diffraction (XRD), Fourier transform infrared spectroscopy, field emission electron scanning microscopy, thermogravimetric analysis, van Der Pauw technique and UV–VIS-NIR spectroscopy. …”
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    Article
  11. 1791

    Adaptive Modulation and Coding Using Signal to Noise Ratio Switching Threshold by Jasman, Faezah

    Published 2009
    “…It offers high data rate transmission with high spectral efficiency, immunity to multipath fading and simple implementation using fast Fourier transform (FFT). However inefficient utilization of the channel will result when OFDM system is designed for worst-case channel conditions. …”
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    Thesis
  12. 1792

    Removal of methyl orange dye by manganese/aluminium- layered double hydroxide by Mamat, Mazidah, Abdullah, Mohd Aidil Adhha, Mohamad Jaafar, Adila, Soh, S. K. C., Lee, C. E.

    Published 2018
    “…MnAl was synthesized by using co-precipitation method and characterized by powder X-ray diffraction (PXRD), Fourier-Transform Infrared Spectroscopy (FTIR), Inductively coupled plasma atomic emission spectroscopy (ICP-AES) and Carbon, Hydrogen, Nitrogen, Sulphur (CHNS) elemental analysers, and Accelerated Surface Area and Porosity Analyzer (ASAP). …”
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    Article
  13. 1793

    Study on characterization of Furcraea foetida new natural fiber as composite reinforcement for lightweight applications by Manimaran, P., Senthamaraikannan, P., Sanjay, M. R., Marichelvam, M. K., Jawaid, Mohammad

    Published 2018
    “…Structural analysis of FF was conducted by Fourier transform infrared and 13C (CP-MAS) nuclear magnetic resonance spectroscopy. …”
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    Article
  14. 1794

    Iminodiacetic acid modified kenaf fiber for waste water treatment by Razak, Muhammad Raznisyafiq, Yusof, Nor Azah, Haron, Mohammad Jelas, Ibrahim, Norazowa, Mohammad, Faruq, Kamaruzaman, Sazlinda, Al-Lohedan, Hamad A.

    Published 2018
    “…The K-IDA fiber was first characterized by the instrumental techniques like Fourier transform infrared (FTIR) analysis, elemental analysis (CHNSO), and scanning electron microscopy (SEM). …”
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    Article
  15. 1795

    One-step potentiostatic electrodeposition of polypyrrole/graphene oxide/ multi-walled carbon nanotubes ternary nanocomposite for supercapacitor by Mohd Abdah, Muhammad Amirul Aizat, Mohd Razali, Nurnaili Syahirah, Lim, Pei Teng, Kulandaivalu, Shalini, Sulaiman, Yusran

    Published 2018
    “…The ternary nanocomposite was further justified its chemical composition by using Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy. …”
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    Article
  16. 1796

    Functional and preliminary characterisation of hydrocolloid from tamarillo (Solanum betaceum Cav.) puree by Gannasin, Sri Puvanesvari, Ramakrishnan, Yogeshini, Mohd Adzahan, Noranizan, Syed Muhammad, Sharifah Kharidah

    Published 2012
    “…Its functional groups and degree of esterification were determined using Fourier Transform Infrared (FT-IR) spectroscopy. Monosaccharide profiling was done using reverse-phase high pressure liquid chromatography (RP-HPLC). …”
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    Article
  17. 1797

    Effect of oxidation degrees of graphene oxide (GO) on the structure and physical properties of chitosan/GO composite films by Foong, Han Lyn, Tan, Chin Ping, Mohd Zawawi, Ruzniza, Zainal Abedin, Nur Hanani

    Published 2019
    “…Graphene oxide (GO) samples with different oxidation degrees were prepared using the modified and improved Hummers’ method by varying the ratios of graphite to potassium permanganate (KMnO4) at 1:2 (GO1), 1:4 (GO2), 1:6 (GO3), and 1:8 (GO4). Fourier-transform infrared spectroscopy (FTIR) and Raman spectroscopy confirmed the increase in oxygen-containing groups in GO with the increase in KMnO4 concentration. …”
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    Article
  18. 1798

    Effect of sonication time on the thermal stability, moisture absorption, and biodegradation of water hyacinth (Eichhornia crassipes) nanocellulose-filled bengkuang (Pachyrhizus ero... by Edi Syafri, Sudirman, Mashadi, Evi Yulianti, Deswita, Mochamad Asrofic, Hairul Abral, Salit, Mohd Sapuan, Ilyas, R. A., Ahmad Fudholi

    Published 2019
    “…Further, thermogravimetric analysis, moisture absorption measurements, Fourier transform infrared spectroscopy, and scanning electron microscopy were performed. …”
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    Article
  19. 1799

    Epoxidation of jatropha methyl esters via acidic ion exchange resin: optimization and characterization by Derahman, Aishah, Zainal Abidin, Zurina, Cardona, Francisco, Awang Biak, Dayang Radiah, Md. Tahir, Paridah, Abdan, Khalina, Liew, Kan Ern

    Published 2019
    “…This study revealed that the maximum 89.9% relative conversion to oxirane rings was achieved after 6 h with the optimal reaction conditions of temperature at 70 ˚C, the molar ratio of hydrogen peroxide to unsaturation of 1.5 mol, the molar ratio of acetic acid to unsaturation of 0.5 mol, and catalyst loading of 16%. Fourier Transform Infrared (FTIR) spectra of the epoxidized jatropha methyl esters (EJME) showed oxirane peaks (doublet) at 825 and 843 cm-1.1H NMR confirmed the diepoxide group at 2.85 ppm and 2.98 ppm, while the diepoxide signals of 1C NMR were present at 56.88-57.06 ppm. …”
    Article
  20. 1800

    Influence of bismuth oxide on gamma radiation shielding properties of borotellurite glass by Mohamed Kamari, Halimah, A., Zuraidah, M., Ishak, Laoding, Hasnimulyati

    Published 2019
    “…The structural and shielding property changes after adding of bismuth oxide in boro-tellurite glass were studied using Fourier Transform Infrared (FTIR) and Lead Equivalent Thickness measurement (LET), respectively. …”
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    Article