Earticle

In the content-based image search properties, form information is simple because only the contours of objects are available, and although it can effectively extract the characteristics of the objects, it is sensitive to external noise. The radial distortion, one of these noises, is most prominent in the eyewear and, due to the structural characteristics of the imaging equipment, radiative distortion occurs in almost all imaging equipment. It is very important to determine the similarity of the objects in the images in which these distortions occurred to the actual objects. In order to improve this problem, we propose a strong image search technique for formative noise and radiative distortion using regularization phase angles and moments. Through simulation using Wang DB, the proposed algorithm proved excellent performance for radiation distortion that occurs in general. In addition, a system optimized for database can be implemented by making appropriate changes to the threshold values, enabling image retrieval with the desired level of confidence in various systems. The algorithm proposed in this paper is expected to be utilized as an optimal imaging system by extracting morphological form information of multimedia data.

The a.c. technique is employed to evaluate electrochemical characteristics of Naphthalie-1,4,5,8-tetracarboxylic acid bisanilide (NTB). The measurements were carried out in dry and pure propionitrle (PCN) and acetonitrile(CAN) at the hanging mercury drop electrode [HMDE). An A.C. phase sensitive detector using computer controlled lock-in amplifier was employed. Primary goal of this report, was to establish on a firm the rare behavior of the phase angle associated with a.c. polarograms of the compound. Although, not an initial goal of this study, the electron transfer rate parameters attending the electroreduction of the compound under investigation were determined. This because the results shed some light on the electrokinetics in aprotic solvent which until recently negligible data were available. Experimental Results and comparison of data obtained are reported. The good precision of the method makes it suitable for studying electrochemical data with unusual behavior at electrodes in non aqueous media.

Phase change thermal storage devices can effectively solve the shortcomings of solar energy such as intermittency anduncertainty, and realize the efficient use of renewable energy. However, the low thermal conductivity of phase changematerials makes it a research priority to increase the melting rate of heat storage units. In this paper, the melting performanceenhancement of the phase change thermal storage device is investigated. A numerical model is constructed for the phasechange process of the device at different inclination angles and heating boundaries, and parameters such as the completemelting time, the melting fraction, the phase interface and the temperature fields are discussed. The results show that thephase change heat storage rate is optimal at 90° inclination, which reduces the complete melting time by 14.05% comparedto 0° inclination. In addition, the increase of inclination angle not only increases the melting rate, but also reduces the areaof refractory region and improves the melting uniformity.