Dr Amir Hossein Chitsazian, Mrs Amineh Nazari Estahbanati,
Volume 4, Issue 11 (3-2009)
Abstract
In the field of Iranian hand-woven rugs, there are different regions with varied histories some of which are still unknown or neglected. Among these are the Shariat-madar Hur rugs which belong to the ancient region of "Eij" and not long ago, were considered as unique masterpieces of carpet-weaving in Fars province. Definitely, one of the essential investigations in the field of hand-woven rugs is to uncover these cultural treasures from the mysteries of time. The present study aims at introducing this unknown identity with all of its features including designs and concepts hidden in its symbolic ornaments. By using field and library research methods, this paper tries to bring the potentials of the inventive and anonymous weavers of this particular type of rugs to the attention of the researchers and admirers of Iranian rugs. The revealed facts in this study can contribute to an increase in the required information in researching about and planning Iranian carpets. Furthermore, this original study prevents the information regarding this rug from disappearing and contributes to the revival of this type of rug in the region of Eij and Estahban.
Alumnus Behnaz Barjesteh, Dr. Ali Nazari, Dr. Mehdi Dehghani-Zahedani,
Volume 14, Issue 33 (spring & summer 2018)
Abstract
Worthful wool products have excellent properties such as high strength, resiliency, dyeability, air imprisonment and it is comfortable that can be used easily. But this fiber has a limitation of nutrition and destruction via wool products digesting species such as Tineola bisselliella. This research evaluates silver nanoparticles efficiency accompany with citric acid stabilizing agent in protecting wool carpets against Tineola bisselliella via validity bioassay and quantifying nutrition amount of treated samples. Therefore, central composite design (CCD) statistical method was used to design experiments and response surface methodology (RSM) was applied to analyze obtained results through Design Expert statistical software. Based on this, wool carpets were exposed to Tineola bisselliella larvae with various concentrations of silver nanoparticles during different days and weight reduction amounts were quantitatively accounted, as minimum optimized, and qualitatively observed as compared with control sample. Then, using statistical analysis, optimized models were presented based on weight reduction dependent variable than independent variables such as silver nanoparticles concentration amounts and exposure days. Also, alkaline solubility was evaluated as other significant characteristic of wool carpets. Images of nutrition status in treated and control wool carpets were illustrated using light microscopy equipped with digital camera and scanning electronic microscopy. Beside, elemental analysis of optimized wool carpets was discussed through energy-dispersive spectroscopy in order to confirm silver presence. Results of this study exhibit that in optimized condition including 3.07 % silver nanoparticles, 10.0 % citric acid friendly-environment cross-linking agent, and 30 days exposure of wool carpets to Tineola bisselliella, the minimum of response variables including 0.09 % weight reduction and 3.13 % alkaline solubility, in other words, significantly highest protection of wool carpets was obtained against Tineola bisselliella.
