Journal of Researches in Islamic Architecture

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Seljuk period is one of the important periods of Islamic Art in Iran architecture. The Seljuk brickworks represent Iran architectural perfection in aspects of techniques and variety. The magnificence of Seljuk brickworks is not found in other later periods. Therefore, further investigation is needed due to the importance of this issue. In this research, literature reviews, field studies and survey is done by analytical- descriptive method. The aims of research are as followed introducing the important motifs of brickworks identify, variety of layout types, and the sustain modality of brickworks during the historical periods. According to the aims, all of Seljuk monuments in Iran which have brickwork decoration were detected and their brickwork decorations identified. The decorations which were unique at that time and were repeated, has been determined as index motifs. Afterward, these motifs and the techniques were found in Khwarezmid and Ilkhanid monuments and their changes or conversions to other decorations have been identified. Most of the architectural exterior surfaces are decorated by the brickwork in Seljuk period funerary monuments with polygonal plan have the most decorative surfaces such as Kharaghan tombs and minarets. In this period, the simplicity of minarets was changed to richest drawing and decorative forms such as Menar-e Ziar and Cheheldokhtaran. It is noteworthy that in addition to this, the monuments including the Robatsharaf Inn and Jame mosque of Golpayegan are decorated with verity brick motifs which combine with stucco reliefs. In general, decorative designs and prolific body of brickwork is one of the special features of Seljuk architecture. Various brick rows are used in the Seljuk monuments and they are categorized to Golchin, Jenaghi, Hasiri, Doraj, Kofi Magheli and Bannaie inscriptions. Golchin’s motifs have some “mother” patterns which are combined tomake various designs. Golchin motifs perform in tow groups “simple” and “compound”. Jenaghi brickwork, perhaps because of its easy performance,has usually been used in corner of the dome and arches. Also some different technique of brickworks such as “Khofteraste” (relieve motifs), Moshabak, Gerehbannaie perform in outer surfaces of Seljuk monuments. Khofteraste brickwork technique was used in high altitudesin order to relieve its motifs. Moshabak technique was used in doorway to pass light through andGerehbannaie generally was used for minaret decorations Selengeh, Chaharlengeh, Sheshvahasht are the prevalent motifs of Ghereh in Seljuk period. An innovative technique: combination of brick with different materials used in Seljuk period that followed in later periods. Hence, Seljuk monuments are decorated by different brickwork in motifs and techniques including the Golchin and Gereh. In addition, initiative techniques such as the incorporation of brick with tile (glazed brick) or stucco were created by artists as well as Kofie-bannaie. Accordingly, it is obvious that Seljuk brickwork decoration is the rising point of Persian brickworks. In Khwarezmid and Ilkhanid periods, brickwork decorations were not used as extent as before. In these periods, brickwork was replaced with stucco and tile. However, some of brickwork decorations such as Golchin, Doraj, Magheli and Bannaie inscriptions were followed by the next periods. Also, the Gereh motifs of Seljuk period became the source of compound decoration for the next time. In Khwarezmid period, molded bricks with relief motifs were developed. This kind of molded bricks in combination with glazed molded brick or the tile, which were pre-cut or insitu-cut, became very common throughout, Khwarezmid and Ilkhanid periods. In such way that incorporation of brick with tile included the hole of decorations during the following periods. Pre-cut brick and pre-cut tile techniques at the end of Seljuk period were used in GonbadKabud in Maragheh and it became the beginning point of this type of decorations in the following periods. The techniques of brick and tile combination so called-Moarraq (mosaic) exists in Khwarezmid monuments such as ForoumadJame mosque and Malekzozan. Also, some skillfully combination of brick and tile were used in two important Ilkhanid monuments including Gonbad-e Soltaniye and Bayazid-e Bastami treasury. It could be argued that combined decorations (combining brick with tile) belongs to the culmination of Ilkhanid decorations. Hence, variety of techniques and innovations that happened in the brickworks of Seljuk periods caused some changes in the decorations of the following periods. Gradually, new types of architectural decoration over the motif, function, and accomplishment were developed based on changes done during Seljuk period.

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One of the most attractive and most diverse decorations of the Safavid period architecture is Nastaliq inscriptions that have been implemented in different ways in buildings with different applications. The scrolls contain valuable information such as a description of the building, patrons and artists who identify and introduce them to clear the hidden aspects of architecture and calligraphy history.
In addition, the aesthetic aspects of this work are also being investigated. From this perspective, one of the things that cannot be oblivious to it, the variety of practices those impacts on the quality of calligraphy in the inscriptions. The aim of this study is to identify common practices and introducing lesser-known practices in the implementation of Nastaliq inscriptions in the architectural decoration belonging Safavid dynasty.
This fundamental research is the descriptive study was conducted; the sampling method used is Post Stratification. Accordingly, the 204 available inscriptions have been studied. More than sixty percent of the documentary has been gathered by field researches. The results indicate that the first Nastaliq inscriptions were in 9th mid-century A.H. carving used in the series of gravestones in Herat.
Results show that in the Safavid period, this way has continued. In this period, the techniques divided to 6 main ways which containing 17 separable distinct subsets. The abundance percentage of the most common methods in inscriptions shows that: Stoney (51%) and Tile working (24.9%) are the most two usage ways. After those, the ornaments made of plaster, wood, metal and painting in terms of the number of samples are the other techniques. According to the classification of different methods, there are 6 unique techniques in research samples: Koshte-bori and Tokhme-gozari (two branches of Stucco Decorations) at Pinia House in Naein and Nim-Avard School at Isfahan, Laye-Chini (Gilded Decoration on Plaster) at Aliqapou Palac in Isfahan, Hakkaki (Wood Engraving) at Jame mosque in Natanz, Moshabbak-felez (Metallic Reticular) at Darbe-Imam in Isfahan and Qalamzani Barjaste (Metallic Relief Scrimshaw) at Chaharbagh School in Isfahan.   
Also, when applying such methods was used in architectural decoration are investigated based on dated samples. On the basis of dated inscriptions can be proposed as follows: the first technique is Stone Carving at 922-923 A.H. in Maydan mosque in Kashan and tomb of Imamzade Abolfotooh in Vanshan. Mosaic Tile is the next method which used probably in 918 and certainly in 951 A.H. After these two styles, respectively: Woodcut (963 A.H), Stucco (979 A.H), Metallic Scrimshaw (1011 A.H), Wood Engraving (1012 A.H), Stone Engraving (1020 A.H), and Stone Mosaic (1031 A.H), Haft-Rang Tile (1034 A.H), Painting (1073 A.H), Metallic Reticular (mid-11th century A.H), Rooye-koobi (1091 A.H), Tokhme-gozari and Laye-Chini (early 12th century A.H) and finally Metallic Relief Scrimshaw (1120 A.H).
This study shows that the variety of technical method used in Nastaliq Inscription was limited on first half of Safavid era and the culmination of a variety of methods has been in the 11th century A.H.

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Murals are the main, media of human culture and civilization and the place and its long history in Iranian art is clear. There are specific forms of mural paintings in some Iranian architecture that are different from other usual wall paintings in materials, methods as well as implementation techniques. Unfortunately, these mural paintings are not studied certainly until now. Therefore, further investigation is needed due to the importance of this issue.

In the scientific literature, different definitions of this kind of murals which provided examples of them pointed out: Canvas murals, Oil-on-canvas mural, Marouflage wall painting,  Marouflaged canvasmural, Oil painting on canvas onto walls, Marouflaged Canvas, Textile wall hangings, Canvas painting adhered to the wall surface, The painting had been adhered to the ceiling by Marouflage, Mural painting on canvas, Used a canvas set in to the wall, Oil on maroufle canvas for mural painting, Fabric-based murals, Ceiling canvases, Painting Hung on the wall, Wall Cover, Oil on Canvas attach on wall, Oil on Canvas mounted on wall.

In Europe during the 17^th century there was a movement away from painting on solid supports towards more portable painting techniques, giving rise to the easel painting tradition. Particularly in France, traditional fresco painting techniques were replaced by mural painting techniques similar to those used in easel painting. This new mural painting technique involved the use of textile supports that the artist could work on in their studio instead of on high scaffolding in large public places1. Marouflage is the term often used to describe this mural painting process, which involves attaching a large-scale painting on canvas to a solid substrate. The solid substrate is often architectural, such as a wall or ceiling. The complete canvas murals were often hung by specialized mural hangers, not the artist themselves. Experienced hangers developed techniques with adhesive properties that were able to bond, two materials which have widely varying properties, such as degree of expansion and contraction, porosity, etc. Ideally a marouflage adhesive needs the following characteristics: a viscous paste that is easy to apply, a slow to medium setting time, high initial tack and bond strength. Using a thick paste prevents dripping and unwanted mess during application. A high initial tack prevents the mural from falling during installation and slower setting times allow substantial working time so that the large murals can be properly positioned.

Regarding to importance of necessity of art understanding before conservation, it is obvious that common conservation procedures on these relics (without appropriate understanding) have an inappropriate results on authenticity and integrity of the relics. Unfortunately, there is not adequate research about technology and conservation of these relics and related fields.  The aim of this research is the identification of history of development, and used materials and techniques in these historic paintings by field and literature investigations. Technological understanding of this kind of murals during the time by application of literature review and data explanation. Due to low information in Persian, European Marouflaged canvasmural has been studied more than Iranian relics. The research subject and case studies are studied in a qualitative and descriptive research method and the subject is considered with ten historical and theoretical aspects. These paintings are executed on the layer of cloth (canvas) and then installed on the wall that is known as a part of the architecture arrays. This research at the first library study is conducted and then according to the results, the field studies are carried out and finally, the data are analyzed. Knowing the number of Marouflage according to literature review, the identification of constituent layers of Marouflage according to field studies, and Understanding the differences between a common wall Paintings and Textile Marouflage in Iran, are the results of this paper. In architectural conservation in Iran there is a perspective called Iranian-Islamic whose meaning is the influence of Islamic belief and thought upon tradition of conservation architectural works during Islamic era of Iran.

In this paper, the process of formation of this type of wall painting in Iran was studied and present examples of this method in Iranian architecture are introduced and explained. Some of the architectural interior surfaces are decorated by the textile painting by Marouflaged in Ilkhanid, Safavid and Quajarperiod; funerary monuments with polygonal plan have the most decorative surfaces such as Soltanieh Dome, Sheykh Safi mausoleum, Maryam church, Golestan palace and etc. According to studies, there was technical change in manufacturing process of large wall paintings and ceiling paintings at Renaissance period. It resulted to production of new kind of murals which known as Marouflaged canvasmural. The research obtained appropriate results about production, manufacturing, historical samples and effect of technological problems on conservation of Marouflaged canvasmural.