نتایج جستجو برای: metal objects
تعداد نتایج: 351520 فیلتر نتایج به سال:
objectives: the aim of this study was to assess the effect of tube current, kilovoltage peak (kvp), metal type, and the position of metal objects on metal artifacts in cone-beam computed tomography (cbct) images. materials and methods: titanium and cobalt-chromium rods were fabricated and placed in a dry human mandible. samples were scanned using a promax 3d cbct unit with different milli-amper...
shahdad and yahya which are two important prehistoric sites in the kerman province, are of most important forarchaeometallurgical studies. during excavations at these sites a number of metal objects have been discovered.moreover, evidence of metal working on the surface testify to manifacturing of metal objects. this also shows that thesite might have experienced craft specialization.the follow...
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 patholo...
Shahdad and Yahya which are two important prehistoric sites in the Kerman Province, are of most important forArchaeometallurgical studies. During excavations at these sites a number of metal objects have been discovered.Moreover, evidence of metal working on the surface testify to manifacturing of metal objects. This also shows that thesite might have experienced craft specialization.The follow...
In many cases it may be thought, corrosion products cover the unique characteristics of ancient metal objects that are desirable to display. While the scientific point of view, the corrosion products as well as metal substrates are important and maintain the original topography of metal that have been replaced. In technical studies of the historical metal objects, the dense layers of corrosion ...
During the excavations of Tappeh Ghalaychi near the city of Bukan in west Azerbaijan province, a number of iron and bronze objects were found that are belonged to the 8th century B.C. The corrosion of iron objects were studied after chemical analysis. As these objects have a very high cultural value, chemical analysis by using destructive methods is not possible, therefore scanning electr...
Foreign body ingestion is common and a frightening experience to the patients and their relatives. A great variety of objects that are capable of penetrating the wall of the gut are swallowed, usually accidentally, but sometimes intentionally by the mentally deranged. Our patient was a 27 year old man admitted to emergency. After laparatomy we removed 10 sharp metal objects from GI. This is a...
tappeh bazgir is located 76km northeast of torang tappeh at the eastern fringes of the gorgan plain. the metal hoard was discovered in 2001 and excavated in 2010. the hoard is composed of a diverse assemblage and date back to the late bronze age / hissar iiic). we investigated six artifacts for studies using different methods such as metallographic studies, sem-eds, xrd, and some chemical analy...
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