TEHRAN (ANA)- Nushijan Citadel (Nooshijan Fire Temple or Noushijan Tappe) lies 20km Northwest of Malayer and 60 kilometers away from Hamadan in Hamedan Province, in the Western part of Iran.

TEHRAN (ANA)- Founded by Darius I in 518 B.C., Persepolis was the capital of the Achaemenid Empire.

TEHRAN (ANA)- The president of Amirkabir University of Technology, a well-known academic center in the Iranian capital city of Tehran, announced readiness to carry out research on producing high-quality lightweight concrete.

TEHRAN (ANA)- A faculty member of Islamic Azad University succeeded in designing and implementing a type of environmentally-friendly concrete that reduces pollutants by 50% and is 30% cheaper compared to other samples.

TEHRAN (ANA)- Iranian researchers at the industrial design department of University of Tehran  succeeded in designing an industrial model of the T267 concrete spraying machine.

TEHRAN (ANA)- Iranian researchers from a technological team succeeded in producing decorative facades for buildings by using stone waste and powder.

TEHRAN (ANA)- An Iranian company stationed at the incubator center of Polymer and Petrochemical Research Institute used nanotechnology to eliminate the need for carving to strengthen, modify or repair the previous concreting by producing rebar planting adhesive.

TEHRAN (ANA)- Iranian researchers at a knowledge-based company designed and produced a fireproof coating which is a combination of several materials and helps a lot in maintaining the resistance of building structures during accidents.

TEHRAN (ANA)- Iranian researchers at the University of Tehran achieved the technique of inspecting the loosening of non-permanent joints in structures by using ultrasound waves to stimulate the foundation.

TEHRAN (ANA)- A knowledge-based company succeeded in production of high-resistance double-walled polyethylene prefabricated houses.