Quarterly Scientific-Research Goljaam

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.

 Rugs in Chaharmahal va Bakhtiari have a great variety of design patterns and colors. One of these patterns is the "frame" design pattern that has its own variations. Frame design patterns are created in two ways: brick and Qabqabi. This paper will try to study the Qabqabi design pattern and its variants in rural area rug and its evolution. Variations of Qabqabi design pattern include simple frame, ring frame (cypress pine), Hassan Khani frame, bow frame, samovar frame and rose frame. The research questions include: When the frame design pattern was used for the first time in the area? What are the types of frame design patterns? What are the differences of filling motifs, structures and frame connections in different part of the province? How their evolution has been accomplished? The most diverse samples belong to which area? It has been also tried to use library-based and field study methods for classification and analysis of Qabqabi carpets of the area. For this purpose, the form of the frame, decorations of walls, connections, coloring of the frames, decorations within the frames within frames and the distribution of frames will also be examined.

 Prayer rug is one of hand-woven products which have been common in Sistan & Baluchestan from ancient times till now, and it has deep spiritual meanings in addition to visual beauty, which has attracted the researchers to itself, especially native experts of this province in the recent two decades. In order to study the prayer rugs, we will classify them into adoptive, half–adoptive, native and original, new and intuitive groups according to people's authentic beliefs and significant motifs which are used in them. The most common and beautiful ones of these samples are the native designs, which include Mehrabi, frame, domical-minaret and prayer rugs. Questions which are asked in this research are as follows: How is general structure of rug prayer rugs of Sistan & Baluchestan? Which are the most important designs and motifs of Sistan & Baluchestan prayer rugs which have caused their durability? Designs and colors used in rug prayer of Sistan & Baluchestan are affected by nature, people's wishes and regional culture. Generally, prayer rugs' structure and motifs are closely similar in most areas of the regions and they have the some visual and meaningful roots, and the most part of these prayer rugs have geometric shapes. Features of native weaving and common raw materials of the province also have been reviewed in this study. The research methodology is analytic and descriptive, and data collection is done with referring to written and unwritten sources in addition to documented studies. Observation results are obtained from field studies and investigation and analysis of data and pictures is a criterion for identifying prayer rugs and hand-woven products of this province, and can helps for reclamation and protection of native art of this region.

East Azerbaijan is one of the most important centers of production and trade of hand-woven carpets in Iran. Several cities in this province participate in the production of this artic-industrial commodity. Heriz is one of these cities that has been well-known for weaving precious and beautiful rugs. Considering the unique characteristics of design, motif, color and texture, Heriz rugs are of great fame worldwide. The main purpose of the present study is to thoroughly examine samples of contemporary rug designs of the region and to identify their design structure. It also attempts to find answers to the questions of how these rugs are designed and what their patterns are. Subsequently, it scrutinizes the main features of rugs in this region and introduces and explores their design structure. Finally, particular styles dominating the design of Heriz rugs are discussed. The study is a self-explanatory one and the collected data was analyzed qualitatively. The data for the study was mainly collected through field studies and in some few cases library references have also been used. The study revealed that there has been and are fixed principles and structures in the design, color and texture of contemporary Heriz rugs and currently rugs in Heriz region are woven according to them.