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It was estimated that annual cost of measurable medical errors was higher than $17 billion in 2008. Phantoms are objects manufactured using a tissue mimicking material (TMM) and largely used to test protocols and mimic clinical environment for medical training. TMM should reproduce at least one biological property to allow the association with clinical situation. The gel made by the copolymer styrene-ethylene/butylene-styrene...
Many studies have been carried out to study the performance of nanocomposite in the past decade. It has been proved that nanocomposite has a superior performance in both electrical and mechanical tests. But the long-term performance study is still lack in this area. Since the conventional composite products have issues in long-term performance, it's meaningful to carry out more studies on the long-term...
In recent times, ester oil is used as insulation in transformers. In order to improve the performance characteristics, silicondioxide nano particles were dispersed in the oil. An attempt has been made to understand the corona activity under high frequency AC and harmonic AC voltages with different level of distortion. No characteristic variation in corona inception voltage is observed with increase...
The acquisition and collation of large numbers of spectral measurements of samples requires the strict adherence to set protocols to ensure the integrity of the data. Errors can occur in the measurement or processing that may not initially be detected and would require the time-consuming process of re-measuring of samples. This paper outlines the development of a national spectral library, and, the...
Many researches reveal that proteins have the property of piezoelectricity. Therefore, the study presents the concept of energy harvester made of natural spider silk. Moreover, with high density of protein, spider silk can produce more strong and stable piezoelectric property through the polarization technology. The major ampullate gland of native Nephila pilipes was chosen as the silk source in this...
The cerium dioxide films were prepared with cerium foils as raw materials by anodization and heat treating method. The anodic cerium oxide films were heat treated at 120°C, 220°C and 320°C respectively. The cerium dioxide films were characterized with X-ray diffraction (XRD), energy-dispersive analyses of X-ray (EDAX), Fourier transform infrared (FTIR) techniques and scanning...
Lignin is considered as one of the most promising renewable resource for the future. Reduction of synthetic adhesive usage in wood composite production by the development of lignocellulosic materials is a challenge. Coir pith is abundantly available waste product which is rich in lignin. The chemical extraction protocols and mode of energy supply influence the structural changes which affects the...
Spectroscopy is a powerful non-destructive technique that utilizes electromagnetic radiation interaction effect to determine the energy level and structure of atomic or molecular substance. Spectroscopy technique has been successfully used to quantify some power transformer condition monitoring parameters such as Furan and oil interfacial tension value. This paper investigates the feasibility of extending...
In this paper, we have proposed an antireflection coating multi-layers of SiO2/Si3N4 on silicon window, suitable for the infrared range of 8∼12 µm. The 4-layers coating (2-periods of SiO2/Si3N4) with optimized thicknesses was designed using Essential Macleod program developed from Thin Film Center Inc. Based on the proposed long-wavelength infrared silicon-based window by simulation, the samples were...
Di-calcium. phosphate manufactured within the Tunisian chemical group has the chemical formula CaHPO4, 2H2O, the latter corresponds to brushite; The dihydrate form of DCP. During this work, the physicochemical and thermal properties of the product already mentioned were studied in order to determine its compositions and forms. We conclude that brushite loses its two molecules of water in two stages,...
Fourier transformation infrared spectroscopy has been used widely for understanding the structure and organization of membranes. The data obtained from FTIR spectroscopy will be huge and preprocessing of the data is an essential step. For accomplishing this task, we need to depend on various software which are not open source. Also the data processing will be time consuming and rigorous. This paper...
Polysaccharides including agarose, chitosan, alginate and collagen are group of natural polymers applied for microencapsulation of cells. This study focused on the characterisation of calcium alginate microcapsules and encapsulated human keratinocytes cell lines. The synthesised calcium alginate were characterised using Fourier Transform Infrared Spectroscopy (FTIR) in wavelength ranging from 600–4000...
Bone defect is still a major problem in dentistry. Solving this problem, tissue engineering becomes one of the promising methods for bone regeneration. One of main component of tissue engineering is scaffolds. Hydroxyapatite (HA) and natural polymer are widely used for scaffolds in bone tissue engineering due to similarity to the natural bone. In this study, the author prepared the scaffolds from...
Poly (3, 4-ethylenedioxythiophene) (PEDOT) films were prepared by electro-oxidation in an aqueous solution on Au microelectrode. Electrolyte solutions and polymerization parameters were optimized previously for further overoxidation. The effect of overoxidation time has been optimized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS), which signifies that overoxidation film...
The use of passive Fourier Transformation Infrared Spectrometry (FT/IR) is a way for the fast recognition and identification of airborne pollutants. In studies done by the Department of Safety Engineering/Environmental Protection at the University of Wuppertal a passive FT/IR was used to show the possibilities of such a system. The fast identification of accidentally released substances is a very...
There is an increasing interest in the textile industry in eco-friendly textile processing, in which the use of naturally occurring materials such as phospholipids becomes important. In previous work [1] we have studied the effect of microencapsulation of dyes with soybean lecithin liposomes, in the dyeing of polyamide and cotton. We also found that, even if the dye was not encapsulated, there is...
FTIR imaging is a powerful tool that combines enhanced visualisation with chemical information. However, prior to applying this method to polymer systems one needs to appreciate the advantages and limitations of a particular imaging mode, i.e. its spatial resolution and field of view. Therefore, there is a need to discuss the differences between the two main FTIR imaging modes: transmission and Attenuated...
This paper describes the functionalization of silicon substrates in hydrolyzed (3-Aminopropyl) triethoxysilane (APTES) solution and in vapour-phase. The FTIR spectra of silicon samples submitted to silanization revealed specific bands associated to siloxane, primary and secondary amine groups, and with methylene groups, which demonstrate the success of APTES functionalization. The FTIR spectra of...
This paper describes the characteristics of a thin film of TiO2 for Dye-sensitized solar cell (DSSC). The active layer of Ti-Nanoxide T / SP is covered by a reflective layer of Ti-Nanoxide R / SP by using the screen printing method. The surface morphology of thin films is generally mesoporous and is in the nanometer size scale. Thin film TiO2 consists of 48.46% oxygen (O) and 51.54% titanium (Ti),...
In recent years, we and others have studied the use of polymer composite materials as sensor coatings with the goal of enhancing the sensitivity, selectivity, response time and robustness of mid-infrared based sensors. Despite generally having unique mid-IR spectral features for various aromatic hydrocarbons, the quantification of trace levels of ethylbenzene in water is a significant challenge in...
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