نتایج جستجو برای: historical quarries
تعداد نتایج: 108953 فیلتر نتایج به سال:
iran has high potential and unique stone reserves in terms of variety of color, texture, quality, and economic value; nevertheless, in spite of growing mine production during the past decade, in many instances this potential has been overlooked. therefore it is necessary to investigate strategic factors of these mines. the purpose of this study is to evaluate and determine the best strategies f...
Introduction: Particulate matter (PM) is known as the most common cause of air pollution in the world. Activities of sand quarries are known as one of the emission sources in Tehran. This study aimed at investigating the geological and environmental factors of airborne particles in an active quarry in the west of Tehran. Material and Methods: Three methods of dust sampling were used. totally, ...
The Mao-Kung Ting is one of the most precious artifacts in the National Palace Museum. Having five-hundred-character inscription cast inside, the Mao-Kung Ting is regarded as a very important historical document, dating back to 800 B.C.. Motivated by revealing the great nature of the artifact and interpreting it into a meaningful narrative, we have proposed an innovative Virtual Exhibition Syst...
Practical Experience has shown that the agglomeration and successful rate of the entrepreneurial activity in the industrial clusters was much higher than non-industrial clusters, the aim of this paper is to contribute to a greater understanding of the process about how the industrial cluster promote the entrepreneurial activities functioning as the incubator of the entrepreneurs and enterprises...
There are many artifacts from various civilizations in our country, reaching day by day. Historical masonry structures also among the that considered cultural heritage. For this reason, detailed examination of these historical structures, testing samples structure and documentation information obtained tests is a very important issue terms ensuring can be transmitted to future generations robus...
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