Showing 230 results for Type of Study: Research, Original, Regular
Pirouz Hanachi, Sara Taymourtash,
Volume 1, Issue 1 (4-2017)
Abstract
The concept of industrial heritage arose in the middle of 20th century, when several industrial buildings and urban landscapes were destroyed in the UK. Since then, numerous efforts have been put to recognize industrial heritage works. Industrial sites are considered as a milestone in human history; they contain memories from a period which was a nuisance, and at the same time symbolized hope toward a better life. Through their architecture, industrial buildings represent technological developments of countries, and the socio-cultural values of their own period.
Loss of their industrial uses within cities, and their unsuccessful social status put these buildings on the verge of destruction. A shift in the mainstream attitude in terms of work and activities, and an architectural style originating from universal experience highlight the importance of investigation and preservation of these buildings. This is where the knowledge to preserve those building which are unable to secure their own prosperity gains importance. The reason of this inability comes from the fact that these buildings are no longer needed, which turns them into abandoned and unsafe spaces, endangering well-being of the society. Adaptive reuse of an existing historical building and adding an extension to it will create movement, liveliness and visual diversity, while maintaining the building character. Enormous scale of the factory, the rhythmic repetition, the length which points to the infinity and even melancholic colors are key points when seeking for an authentic design in order to reuse the building.
Davoud Agha-Aligol, Parvin Oliaiy, Mahmoud Moradi, Mohammad Lamehi-Rachti,
Volume 1, Issue 1 (4-2017)
Abstract
In investigation of production technology and provenance studies of historical objects as well as to propose and develop strategies for restoring and conservation, it is necessary to get information about studied samples. This information is different according to the type and kind of materials of historical objects.
Today, identify and accurately determine the elemental composition and constituent material of given sample is one of this essential information that be able to measure using modern laboratory instruments In this paper, was presented some results was obtained in past few years from different historical and cultural objects using micro ion beam analysis in Van de Graaff laboratory of Nuclear Science and Technology Research Institute.
Investigation of Painted enameled potteries to determine the different pigments used in, determine the thickness and purity of the gold layer in gilded enameled potteries, determine the responsible elements to brightness of wall painting in a historical place, Investigate the causes of corrosion and degradation of an old manuscript, determine purity of Elymais bronze coins and determine the type of Iranian historical and ancient glasses are some studied objects that will be presented in this paper.
The results of these analysis will significantly help to investigate the production technology, to determine the authenticity of the samples and finally to use in restoration of these historical objects.
Hamidreza Bakhshandehfard, Sedighe Taheri,
Volume 1, Issue 1 (4-2017)
Abstract
The objects of the study are two bronze daggers dated back to the late Bronze Age and early Iron Age. They lack any ornaments and there is corrosion and oxidation in their surface. The purpose of this study is to recognize the technological and pathological research on the mentioned objects through comparative and pathological studies and library method, to conduct the technological and pathological research through laboratory method (wet chemistry, radiography, metallography, metal core elemental analysis by Scanning Electron Microscope (SEM), analysis of corrosion by X-ray diffraction (XRD) in order to identify the metal and making techniques and to determine the types of damage, and finally to perform the conservation and restoration of the these objects through the conservation plan.
After studying and conducting experiments mentioned, it was determined that the material of the objects was bronze with carbonate and chloride corrosion. The making methods in these objects is casting and hammering. They were recognized to belong to the Iron Age.
Omid Oudbashi,
Volume 1, Issue 1 (4-2017)
Abstract
Recently risk assessment and management in cultural-historical collections is one of the important subjects in the field of preventive conservation research. Different methods and aspects of are used and studied in the field of risk assessment in archaeological sites and collections and significant results are achieved and published in last decades. One of the types of archaeological collections is metal collections that may be found in archaeological excavations. In this paper, application of risk assessment approach is investigated to estimate conservation condition in archaeological bronze collection. This approach is concentrated on occurrence of active corrosion (bronze disease) and factors influencing it during burial time and post-excavation period. Thus, the results of analyses based on an analytical system is considered that is performed previously (Metal-Environment-Corrosion system) including identification of soil environment, characterization of corrosion mechanism and their effect on conservation condition in bronze objects. For this purpose, two bronze collections are studied that are discovered from Haft Tappeh and Sangtarashan sites from Iran. The condition of two collections is assessed consisting of identification of risks and deterioration factors influencing bronze objects during excavation operation as well as post-excavation preservation and risk assessment based on occurrence of active corrosion in the collections. Finally, conservation condition and excavation procedure and preservation of the collections are estimated and analyzed based on the corrosion mechanism occurred in the objects and results of risk assessment in soil and museum environments.
Nima Nezafati, Morteza Hessari,
Volume 1, Issue 1 (4-2017)
Abstract
The East Chia Sabz site is located at the bank of the Seymareh river in the middle of Zagros Mountain chain. The site is among the few collections of the Acramic Neolithic sites of eighth millenium BCE of Zagros which was archaeologically investigated during the rescue archaeological studies of the Seymareh dam. Numerous bullet-shaped core stones were unearhted during the archaeological excavation of the site, from which some were investigated using XRD analysis. According to the results, most of the lithic artifacts demonstrate a similar mineralogy and it seems that they had been provided from a local source. In this regard, the silisic cobbles of the Amiran Formation that are also available from the river beds could have been a significant source.
Parastou Naeimi Taraei, Shaiba Khadir,
Volume 1, Issue 1 (4-2017)
Abstract
Due to the complex corrosion mechanism of the bronze objects, explaining the structure of different layers of corrosion in these objects at microscopic levels is possible. Typically copper oxide(I) is the first corrosion layer on surface of bronze objects that are excavated of historical sites. However, depending on the environmental conditions، various forms of corrosion layer of tin or copper-rich oxide are formed that are effective in corrosion resistance of objects. Identification of tin oxides or copper-tin corrosion products is not simple by using of routine methods of instrumental analysis.However in this research the formation process of copper and tin oxides of some of historical bronze objects of Iran were studied by using the optical microscope with polarized light that show colored corrosion products and in some cases the method of scanning electron microscopy equipped with elemental analysis (SEM-EDX) was used to complete the identification process of oxide layers. According to the results, identify of evidence of differences in distribution of copper and tin in the microstructure that is result of macroscopic and microscopic segregation, formation of a solid solution of copper besides the copper-copper oxide eutectic mixture during the solidification process, the appearance of copper oxide inclusions in the microstructure of metal, moving The tin-rich layer of copper oxide layer to the outside, formation of copper oxide-tin oxide sandwiching layers, selective dissolution of tin in the outer layers, decuprification phenomenon in corrosion layers and condensation of tin oxides in the center of sample and finally the usual formation or degradation of copper oxide layer under certain conditions have been studied with microscopic imagesof selected samples of bronze objects which confirmed the ability of microscopic techniques in the study of oxide layers of bronze objects.
Manijeh Hadian Dehkordi, Rasoul Vatandoost, Christoph Herm, Stefan Simon,
Volume 1, Issue 1 (4-2017)
Abstract
The dangers posed by O3to historical properties and art works, as well as limited accessibility and inapplicable instrumental methods for measuring O3concentrationhave made it much more necessary to use low tech and inexpensive methods for this purpose in almost all museum environments. On the other hand, elastomers are known as polymers with high reactivity to ozone and latex as a natural elastomer is the most sensitive one to this gaseous pollutant. Hence this polymer has been considered as an ozone dosimeter.
In this scientific investigation, in order to attain the ozone dosimeter, the effect of this gas on the latex strips prepared in artificial condition was studied. For this purpose an aging chamber equipped with ozone generator was used. Since the oxidation of latex strips can also occur as a result of UV radiations, in order to study and compare the process with Ozone gas, testing samples were aged using UV lamps of 254 and 366 nm wavelengths. All the examinations were carried out at 24 oC and 40% RH. The aged and intact latex strips were studied by means of ATR-FT-IR and digital microscope.
The results demonstrate the diverse and discernible oxidizing effects of O3 and UV radiations on latex. Furthermore, it is possible to estimate the concentration of ozone in the environment by the calibration of latex strips. The verification of the results obtained by latex dosimeters in museum environments was carried out by Ozone sensor over a day, confirming the results acquired.
Yasin Sedghi, Mohammadamin Emami, Nasir Eskandri Damaneh,
Volume 1, Issue 1 (6-2018)
Abstract
This study aims to examine seven pottery sherds attributed to the Aliabad cultural horizon (4th millennium BCE) from the Mokhtarabad site in Shahdad, southeastern Iran. The research focuses on analyzing their structural and mineralogical similarities and differences, identifying the raw and temper materials used, and ultimately determining the origin and manufacturing techniques. Thin-section petrography and X-ray diffraction (XRD) methods were employed for this purpose. All samples exhibit similar petrographic fabrics characterized by fine-grained homogeneous clay matrices. Mineralogically, the pottery contains similar inclusions such as angular quartz grains, plagioclase with polysynthetic twinning, feldspar, fine-grained muscovite, as well as carbonate and calcareous particles. The shared mineralogical features suggest a common source, and comparison with the local geological outcrops supports the conclusion of a regional and indigenous origin for the raw materials used.
Najmeh Khatoun Miri, Elham Heydari-Karbaski ,
Volume 1, Issue 1 (6-2018)
Abstract
Shahr-i Sokhta in Sistan is one of the most significant and pivotal archaeological sites in southeastern Iran, with initial settlement dating back to the Bronze Age (3200 BCE). The site spans an area of approximately 151 hectares, of which 120 hectares contain material and cultural remains. It consists of three major parts: the central area, the industrial zone, and the cemetery. Excavation results indicate four cultural-occupational phases (I–IV), which are further subdivided into eleven sub-phases. Pottery, being the most abundant cultural-historical artifact found across many archaeological sites in southeastern Iran, including Shahr-i Sokhta, holds considerable importance in archaeological studies. It is the only category of ancient object that has survived through millennia with minimal alteration. Archaeologists believe that most of the pottery discovered at Shahr-i Sokhta was produced locally, either within the site or in satellite workshop areas. To evaluate this hypothesis, the present study employed laboratory methods, including petrographic thin section analysis using a polarizing microscope (OPM) and X-ray Powder Diffraction (XRPD), on three buff pottery samples recovered from grave no. 8525 NFB at the site. The analytical results, when compared with the local geology, indicate that the buff pottery from this site is of local origin. Furthermore, based on structural analysis and the presence of calcite grains, a firing temperature of approximately 800°C is suggested for some samples, while others likely underwent firing at around 900°C.
Mostafa Karimi Fard, Mehdi Razani,
Volume 1, Issue 1 (6-2018)
Abstract
Stucco work (gachbori) is one of the most prominent and sophisticated traditional arts of Iran, which has historically been executed using a variety of technical methods. Due to the inherent fragility of gypsum and the impact of both environmental and human factors that contribute to the deterioration of historic plasterworks, the conservation and restoration of these elements—particularly through the revival of forgotten or seldom-used techniques—are essential for preserving and transmitting cultural heritage to future generations.
One such technique is the creation of openwork stucco decorations, which are freestanding ornaments executed in a pierced style without a backing layer. This method is especially prevalent in the central regions of Iran, notably in the historic houses of Kashan, where lattice windows (rozans) filled with colored glass are a distinguishing feature. From a technical standpoint, the decorative work is carried out by applying gypsum over a temporary support; once the support is removed, the cut-out patterns are completed from the rear with stained glass.
This article presents a detailed account of the reconstruction and restoration process of one such gypsum lattice window in the Abbasi House of Kashan. Through a practical and field-based approach, the authors replicate and document the historical construction techniques and restoration steps involved in reviving this architectural ornament, offering insights into the craftsmanship and methodology behind these delicate works.
Mahdi Razani, Alireza Baghbanan , Seyed Mohammad Amin Emami,
Volume 1, Issue 2 (9-2018)
Abstract
This study aims to utilize qualitative assessments derived from environmental evaluations and field tests to document the current state of damage, determine strength, and measure hardness in the external surfaces of the rock-cut architecture of the historic village of Kandovan, identifying and ranking the most significant damage factors. Environmental assessment forms were used for documenting the pathology, while a Schmidt hammer (Type L) was employed for qualitative field tests. The entire village was surveyed at 143 points. The results indicate that human activities are the primary cause of deterioration in Kandovan, with the hardness of the rock-cut surfaces classified as weak to very weak. The severe erosion of the outer surfaces of the rock houses is notable. Based on the data, the village was zoned into areas of low, moderate, and severe weathering in terms of surface strength, reflecting the extent of deterioration. Areas with greater exposure to water flows exhibit severe erosion and weathering, while those with less exposure to watercourses are classified as less weathered.
Mahdieh Shahreki Moghadam , Reza Khanjari Dolatabadi ,
Volume 1, Issue 2 (9-2018)
Abstract
The studied artifact is a stone bowl from the twelfth excavation season at Burnt City, Sistan, between 1997 and 2008, retrieved from trench NFB, burial 8509. Most stone artifacts in the past were made from gypsum alabaster or limestone marble, which are visually similar. Through sampling and thin-section petrography, the results revealed a layered limestone structure containing calcite and aragonite minerals, confirming the bowl’s marble composition. Regarding the manufacturing technology of marble artifacts, evidence of tool marks on the studied bowl suggests the use of tools such as hammers, chisels, drills, gouges, saws, and abrasives in the production of stone vessels.
Fatemeh Hajian , Hamed Amirkhani ,
Volume 1, Issue 2 (9-2018)
Abstract
Diffraction-based techniques are fundamental tools for the characterization and understanding of materials of different nature, including those relevant to cultural heritage. Both conservation science and archaeometry may extensively profit from the information provided by diffraction techniques. The various methods and techniques of single-crystal and powder diffraction as applied to cultural heritage materials are briefly described with reference to specific examples, focusing on the extracted information in terms of (1) phase identification and quantification of crystalline compounds and complex polyphasic mixtures, (2) the texture and orientation of the crystalline phases, (3) the atomic and molecular structure of the phases involved, and (4) the physical microstructural state of the material in terms of crystallite size and accumulated strain. This paper presents a review of X-ray techniques used in art and archaeology and their applications as a non-destructive research tool in examining artistic and ancient objects. XRD is a standard procedure that provides information about the manufacturing process and condition of objects without physical contact, as well as insights into material composition and crystalline structure, making it widely used by archaeologists, curators, and conservators. The present paper aims to discuss the contribution of X-ray diffraction to cultural heritage and archaeology studies, based on personal experiences and those of other colleagues with various crystalline and non-crystalline materials. For this reason, the paper presents only a selection of cases identified by X-ray diffraction in cultural heritage conservation studies. It should be noted that X-ray diffraction plays a critical role in the analysis and characterization of these diverse materials. Another important goal of this work is to encourage in-depth studies on the use of X-ray techniques in the study of historical, archaeological, and artistic materials.
Abdolbasir Hosseinbor, Hesam Aslani, Eshagh Mansouri,
Volume 1, Issue 2 (9-2018)
Abstract
The rock inscription, which forms the basis of this research, is located in the Pirghar region and was carved on a rock in Deh-Cheshmeh village under the orders of the leaders of the Bakhtiari Constitutional Movement. The current condition of this monument is not optimal; thus, a detailed and accurate study of the inscription, given its historical and cultural significance, is essential for its proper recognition and conservation. Based on topographic and field studies, the inscriptions have been subjected to erosion and deterioration due to surface water flow and frost. Among the most significant surface factors are snow accumulation, precipitation at higher elevations, seasonal flows on sloping surfaces leading to the monument, and frost during cold seasons, which cause erosion, deterioration, and serious damage to the inscriptions. This study is conducted within the framework of a quantitative research approach, utilizing field studies, environmental assessments, and the Geographic Information System (GIS). To this end, the area hosting the inscriptions was identified using field visits and GIS and RS tools, and the obtained data were evaluated based on the direction and extent of damage. Using GIS, the drainage of runoff from the basin, hydrological operations, elevation ratios of each basin, digital elevation model, slope, slope direction, basins, sub-basins, waterway outlets, and water flow direction in the region were determined. These data will contribute to the damage assessment and preventive conservation of the inscriptions.
Amirhossein Mojtahedzadeh,
Volume 1, Issue 2 (9-2018)
Abstract
The interest of Iranians in gemstones and precious and semi-precious stones has roots spanning thousands of years in the culture and history of this land. This has led to the accumulation of a vast treasure of unique jewelry and gemstones, recognized as a national and cultural asset, due to mineral resources and historical conquests. However, with recent discoveries and advancements in the field of gemstones and precious and semi-precious minerals, the conditions necessary for the conservation, protection, and display of this invaluable and unique heritage have undergone new transformations and progress. Implementing and adhering to these requirements in the country is essential for this field and is vital for preserving the authenticity and essence of these specimens due to their exceptional value. This applied research aims to explore transformations in the gemstone field, introduce new internationally adopted principles, and examine the modern global standards and conditions in this area. Gemstones can have organic or mineral origins and may be displayed in raw, cut, historical, or contemporary forms. This group also includes loose gemstones and those mounted in jewelry, highlighting the diverse range of existing artifacts. Based on the mentioned classifications, efforts are made today to establish ideal conditions tailored to the type of specimens. Factors such as lighting, display methods, gemstone restoration techniques, and temperature and humidity conditions directly impact the quality and essence of the specimens, ensuring their longevity and stability over time. Providing an appropriate environment and controlling all the aforementioned factors will guarantee the durability and value of the gemstones.
Mehdi Razani,
Volume 1, Issue 2 (9-2018)
Abstract
The conservation of mural paintings on plaster substrates uncovered during archaeological excavations, particularly those executed in watercolor, tempera, or oil-based techniques, necessitates a comprehensive understanding of plaster’s properties and its interaction with environmental factors. Plaster, as calcium sulfate dehydrate (CaSO₄·2H₂O), is a crystalline and porous material that poses unique challenges in restoration due to its high sensitivity to moisture, temperature, and biological agents. These characteristics, combined with the diversity of pigment layers and organic or oil-based binders, demand multifaceted conservation approaches. This note seeks to problematize the issue in a general sense while highlighting some common challenges and solutions.
Mohammad Mortazavi, Ahmad Salehi Kakhki , Mohammad Ali Golozar , Hassan Tala’i ,
Volume 1, Issue 2 (7-2017)
Abstract
One of the most widely used terms in the conservation and restoration of cultural and historical artifacts, particularly in the field of ancient metal objects, is patina. Although, this term is also applied to other historical materials, such as paintings and stones, its frequent used in the context of ancient bronzes makes it essential to develop a clear and accurate understanding of its meaning and implications. From the perspective of the studying deterioration of the artifacts, patina-as corrosion products in bronze artifacts-can significantly impact both the tangible and intangible aspects of the objects. on the one hand, it contributes certain values, such as age and aesthetics. On the other hand, it serves as an important criterion in conservation and restoration practices. However, the lack of comprehensive and precise definition of this term leads to complexity in conservation decision-making. In this paper, based on a literature review, the differing and similarity viewpoints on patina have been investigated. Following this, the term is reviewed in relation to different corrosion morphologies, and issue related to its current definitions are discussed. The different values of the patina are debated, and its role in the principles of conservation is reevaluated. In this field, confusion arising from the application of the term patina in the conservation of archaeological bronzes have been highlighted. Finally, considering the unique properties of corrosion phenomena in archaeological bronzes, the concept of the “original surface” is discussed as an approach to addressing this issue.
Saman Torabi,
Volume 1, Issue 2 (7-2017)
Abstract
The study and examination of Iranian wall paintings, given their historical significance and visual-artistic value, have consistently attracted the attention of researchers and art historians. When the topic of Iranian painting is raised, images found in manuscripts and albums often come to mind. However, it should not be overlooked that Iranian artists have long been active in various fields of visual and decorative arts. Evidence suggests that the art of wall painting predates the tradition of book illustration by a considerable margin. In ancient times, wall painting held the greatest prominence among various forms of visual arts. Nevertheless, during the four centuries of Mongol rule over Iran, its significance diminished substantially in comparison to book illustration. It was not until the Safavid period that this visual art form regained attention, with examples of it observable in the royal palaces preserved from that era. As noted, during the Mongol period, the importance of wall paintings significantly declined compared to book illustration, and despite the presence of valuable miniature paintings, few wall paintings from this period have survived. The paintings in the Chelleh-Khaneh of the Pir-e Bakran Shrine are among the rare surviving pictorial examples from this era, featuring designs and motifs closely resembling the miniatures of the schools of that period. They also exhibit notable differences from Safavid wall paintings in terms of composition, the colors used, and the design of motifs. Therefore, in addition to studying the visual elements and comparing them with the surviving miniatures from this period, it is essential to investigate the technical aspects, execution methods, and materials used in this valuable historical and artistic work. This article endeavors, within the limits of available resources, to enhance understanding of the work through comparative-historical and technological studies. To this end, laboratory methods were employed to analyze the types of colors used in the work and the techniques of their application. However, due to limitations in sampling from this highly exquisite and unique piece, the study of the materials and substances used in the execution of its decorations remains incomplete, with shortcomings that are hoped to be addressed in future stages of research and investigation .
Saole Shadkam, Alireza Ravabi,
Volume 1, Issue 2 (7-2017)
Abstract
The conservation and restoration of historical and cultural artifacts in Iran are increasingly recognized as important fields of study. Among these, the conservation and restoration of wooden artifacts remain underexplored. The treatment of artifacts damaged by mechanical, chemical, and biological factors must be informed by prior studies to minimize the effects of these destructive influences. The Jameh (gathering) Mosque of Gorgan, a significant historical building from the Islamic era, contains many valuable decorations and artifacts, including its distinguished wooden pulpit (minbar). This pulpit, based on surviving documents, is believed to date back to the Timurid period and features intricate lattice work (gereh-chini) and wood carving (monabbat-kari), which greatly enhance its historical significance. The main objectives of this research are to understand the construction techniques used for the mosque's pulpit and to analyze the physical and chemical composition of the materials employed. To achieve these objectives, methodologies including documentation, microscopic examinations, and Fourier-transform infrared spectroscopy (FTIR) analysis were utilized.
Hamed Yonesi, Bahare Yonesi,
Volume 1, Issue 2 (7-2017)
Abstract
Musical instruments, as an integral part of cultural and historical heritage, possess not only artistic and aesthetic values but also significant scientific, technical, and musical aspects. Due to the per formative nature of music, musical instruments are susceptible to wear and deterioration, presenting unique challenges for their preservation and restoration. Unlike many historical artifacts that are restored solely to preserve their physical structure and prevent decay, the restoration of musical instruments must consider the aesthetic sonic concepts of the work in addition to preserving its cultural and historical identity. Any intervention in these instruments should be carried out in a way that does not negatively affect their sonic and structural authenticity. In some cases, due to the high sensitivity of historical instruments and the potential for physical damage during studies and investigations, researchers have resorted to reproducing similar examples. This requires precise knowledge of the organ logy of the instruments and their construction techniques in different historical periods. In this research, the historical introduction and classification of instruments are presented first, and then the structural characteristics of each group are examined. Subsequently, study strategies appropriate to the characteristics of each historical group are provided, and the theoretical foundations for the preservation and restoration of musical instruments are developed. The results of this research show that the restoration process of historical instruments, due to their structural and acoustic diversity, requires different approaches and a deep awareness of the physical and sonic characteristics of each instrument. Therefore, restorers must have a comprehensive understanding of the acoustic dimensions and materials of the instruments before any intervention to strike a balance between physical preservation, sonic reproduction, and the preservation of cultural authenticity.