Quarterly Scientific-Research Goljaam

The existing standards for measuring carpet properties consider carpet behavior after loading while its dynamic and instantaneous behavior is neglected. To investigate the dynamic behavior of under loading carpets, an INSTRON machine equipped with a developed system was used. The reliability of the system was verified by testing different materials. Different samples of hand-knitted carpet with 30, 40, 50, 60 and 70 Raj (rows/6.5cm), with specific structural and physical characteristic and raw material, were tested to obtain the curves of their pressure resistance versus time. The relation between features derived from the load/time curves and carpet structural and physical characteristics and raw materials were defined. Measuring the Pearson coefficient correlation, the linear correlations were studied and analyzed. The results indicate that with increase in knot density (Raj), the rate of decreasing thickness during loading, the resilience of carpet pile after loading, the total work exerted to carpet for reaching to jamming phase and the work returned by carpet during recovery phase decrease; while with increase in carpet thickness, the resilience and the total work increase. In addition, the load/time curves of different materials and hand-knitted carpets were compared. The similarities and differences between their behaviors were derived and the desirable compressibility behavior of a carpet is accordingly suggested.

One of major issues of the countries, especially developing countries, is expanding globalization process and the way of facing with it. Globalization is not a process that be encountered similarly in all countries but those who recognize its all aspects could utilize more and make better use of opportunities it makes; consequently, they could compete well in international community. Knowing competitive and comparative advantages of different sectors of country's economics can be a significant change to the rising of competitiveness. Since the hand-knitted carpet industry is one of the sectors that promise high non-oil export potentials, this paper concentrates on this industry and utilizes the Policy Analysis Matrix (PAM) to calculate indexes of competitiveness and comparative advantage in the hand-knitted carpet industry. As the province of Qom is one of the major producers of high quality marketable carpets, the paper concentrates on this area. The province has a long history of producing unique carpets in terms of design, weaving quality, coloring and other qualities. At present, Qom stands ready to supply the export market with enough of 65 knots hand-knitted silk carpets. So for evaluating trade globalization's effects on hand-knitted carpet industry, we use data and information about that kind of carpet in 1385. Results show that the index of the competitiveness of Qom hand-knitted silk carpets is 93% and its comparative advantage based on unit cost that would hold when Iran joins WTO is 84%. These indexes indicate that Qom hand-knitted silk carpets score high both in terms of competitiveness and comparative advantage.

In addition to medical recognition applications, X-ray CT-scan images are increasingly found to have more innovative and widespread applications. Due to the ability of producing high resolution and high contrast images from soft tissues with low attenuation coefficients, the usage of X-ray micro-focus source, which has a very small focal point (in the range of micrometer), plays an important role in those new applications. Since employing non-original knots in hand-knitted carpet reduces the carpet quality and the originality of knots cannot be visually recognized, in this research, a method has been introduced for recognition of the 3D structure of hand-knitted carpet using CT-scan images provided by micro-focus X-ray source. The images obtained by inverse Radon transform can even show the smallest units in the inner structure of the finest hand-knitted carpets. This method is a powerful device to recognize the originality, to inspect the structure and to study the impacts of different parameters on the structure of hand-knitted carpets and also for other applications which need scrutiny of 3D textiles.

In this research we are to determine the maturity of electronic commerce (the amount of usage of electronic devices and tools for performing the organization’s activities) in the export of Iranian hand-knitted carpet, as a base for recognizing the current situation and thus offering methods for improving the level of electronic maturity (achieving higher levels of electronic maturity) for organizations supporting the exports, exporting companies and the organization for hand-knitted carpet. For this purpose the systematic model of maturity of product exporting process, which is of a systematic view and involves both aspects of organizational and applied, is used. The parameters are analyzed using the designed surveys (Likret Scale), with hypothetical mean of (µ=3), and the percentage of answered questions to each choice. The processes of acceptance and rejection were performed by T-test and Nova test, and since in two-dimensional maturity model, the grade of export electronic maturity corresponds to the organizations (companies) that have the least grade of maturity, in analyzing the results, it was found that the hand-knitted carpet export companies, though being in the first rank, have the lowest rank. Therefore the export maturity in the first rank will be determined, whilst the supporting companies and organization for hand-knitted carpet are in the fourth rank of electronic maturity.