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Flavonoids is one of the bioactive compounds that are currently used in pharmaceutical and medicinal industries due to their health benefit. The focus of current research is mainly on the extraction and isolation of bioactive compounds; non to date has explored on the identification of flavonoids classes under the Fourier Transform Infrared spectroscopy (FTIR). This gap presents an opportunity to...
The performance of room temperature vulcanized (RTV) silicone rubber under various operation conditions is always a hot point in the study of external insulation. The influences of transformer oil on performance of RTV silicone rubber have been little investigated, which are crucial issues for the RTV silicone rubber covering transformer bushing because of the potential transformer oil leakage problems...
The accuracy of the analysis results was affected by the degree of standardization of the spectra in the qualitative and quantitative analysis of the material using the Fourier transform infrared spectroscopy. Especially for real-time online analysis application, the Identification and judgment of the Spectral Distortion was one of the key technologies for online real-time analysis applications, because...
With balanced consideration of the polymer matrix chemistry, nanofiller type, loading and surface chemical treatment, the application of multi-variate statistical analysis (MVSA) modeling was carried out to inform structure property relationships in support of material design and optimization. Fourier transform infrared spectra and physical property measurements, including thermal and electrical properties,...
The overall aim of present investigation is to partially replace the existing chemical fertilizer by developing polymer coated nanocomposites bio-organic fertilizer. Development of nanocomposite fertilizer influences on plant growth promoting activities of nanocomposite fertilizer, nanocomposites fertilizers are analysed using Fourier Transform Infrared Spectroscopy, morphology structures of nanocomposite...
Oral leukoplakia (OLK) is the most common pre malignant disorder (PMD) with highest malignant potentiality. It is clinically highly correlated with oral squamous cell carcinoma (OSCC). Painful biopsy is the gold standard till date for diagnosis of these diseases. Again for specific grading of such pathological states and mitigation of inter and intra observer variability and subjective disease classification,...
Calcium phosphate cements have previously been used for bone void repair applications, but recent advances suggest magnesium phosphate cements to be a better alternative. Compared to calcium phosphate cements, magnesium phosphate cements display greater initial strengths following cement reaction, as well as resorption time frames more appropriate for clinical application. This study involved the...
This chapter reviews the characterization of sol–gel materials with optical spectroscopy. The materials chosen, suitable to optical spectroscopy characterization, were mostly sol–gel‐derived optical films and waveguides, consisting of inorganic, hybrid, and nanocomposite sol–gels for integrated optical applications. The optical spectroscopy methods include FTIR, Raman, fluorescence/luminescence, and...
Fourier transform infrared spectroscopy of CH4/N2 and C2Hm/N2 (m = 2, 4, 6) gas mixtures in a medium pressure (300 mbar) dielectric barrier discharge was performed. Consumption of the initial gas and formation of other hydrocarbon and of nitrogen-containing HCN and NH3 molecules was observed. NH3 formation was further confirmed by laser absorption measurements. The experimental result for NH3 is at...
Gas infrared spectrum should be reconstructed according to the collected spectral data by the spectrum detecting instrument which was used in the online gas Fourier transform infrared spectroscopy measurement. However, due to the influence of the factors such as ambient noise and the spectrum detecting instrument itself noise, spectrum reconstruction was mixed by noise and the results of subsequent...
Currently, the oil-immersed power transformer on-site detecting and analysis systems for dissolved gas analysis (DGA) were usually based on the gas chromatography, electrochemical sensor array or other sensors. But these methods had the defects such as needing standard carrier gas, regularly instrument calibration, low security, long analysis time and so on. For these reasons, an innovative method...
Ethylene propylene diene monomer rubber (EPDM) is an excellent rubber for outdoor use. Silicone rubber (SiR) containing EPDM may show improved weathering resistance. Hence, EPDM is blended with silicone rubber with various blend ratios. After processing and curing, the electrical and mechanical properties of the SiR/EPDM blends are determined. The heat and weathering resistance of the SiR/EPDM blends...
This paper focused on epoxy-based nanodielectric composites with 5, 10, 15 and 20 wt.% of silica constituents prepared using simple mechanical mixing technique along with required curing cycles. The experimentally clarified dielectric constant (ϕ′) and dissipation factor (tanδ) are influenced by addition of nanosilica is discussed on the basis of the three core interface model proposed for interaction...
The aim of the current research is to manufacture titanium - water based nanofluids and to study its various properties. The titanium nanofluids were synthesized using water as the base fluid for potential use as a coolent for heat transfer applications. Three different concentrations 1%, 3% and 5% of the titanium nanofluids are developed. The characterization of the synthesized nanofluids is done...
Gd2O3:Er3+,Yb3+ microcrystals were prepared by the co-precipitation method using water or ethanol/water as solvents. The effects of solvents on particle size, morphology, and photoluminescence intensity were investigated. The microcrystal were systematically characterized by X-ray diffraction (XRD), thermogravimetry-differential scanning calorimetry (TG-DSC), scanning electron microscope (SEM), Fourier...
Recently portable Raman probes have emerged into markets with a variety of applications including carbon nanotube (CNTs) characterization. Aqueous dispersed carbon nanotubes (CNTs) have shown a lot of promise towards biomedical application like drug / gene delivery vectors, photo-thermal therapy, and photoacoustic imaging. In this study we report the simultaneous detection and irradiation of carbon...
The erosion behaviors of polymeric materials and polymer-based composites have been studied during exposure in atomic oxygen (AO) environment in the ground-based simulation facility. The in situ testing analysis for the dependence of the erosion rate of polyimide film upon the impingement angle of AO was made by using a quartz crystal microbalance (QCM). The variations of chemical and physical properties...
X-ray Diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy were used to analyze the characteristics and differences between usual aggregate and coal gangue from the west of Inner Mongolia. The FTIR analysis results show that there are little differences in samples from three areas; however there are apparent differences spectrum absorption peaks at 3697~3684 cm-1, 3624~3613 cm-1 and...
The reaction of a Chinese bituminous coal PDS with Fe2O3 was investigated by such experimental means as thermogravimetric (TGA) coupled with Fourier transform infrared spectroscopy (FTIR) and TGA-difference thermal analysis (DTA) with focus on the effect of the heating rate. It was found that the reaction of PDS with Fe2O3 displayed three-staged reaction characteristics, and a higher heating rate...
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