شكل سبائك الذاكرة او مايعرف بسبائك الذاكرة استخدمت كمواد مركبة لصناعة عاصرة ادرار صناعية مصنوعة من سبيكة متكونة من النيكل والتيتانيوم مغمورة في مطاط سيليكون "السيليكون والمطاط"صممت خصيصا للجراحة الترقيعية للمرضى الذين يعانون من سلس البول الجزء المعدني السفلي ينحني الى الاسفل بواسطة التيار الكهربائي ثم يستقيم الى الاعلى عندما يتوقف التيار

ان هذا المنتج من المواد المركبة الذكية للسيطرة على سلس البول يستفاد منه ايضا للمرضى الذين يعانون من اصابات الحبل الشوكي

August 1st, 2010 Solar Tsunami

On August 1^st, 2010 almost the entire earth faced a tumult of activity erupting on one side of the sun. This created disordering in electromagnetic and infrared controlled equipments on the earth. White area on the upper left of the image from the Solar Dynamics Observatory of NASA shows the C3-class solar flare. A solar tsunami (wave-like structure, upper right), multiple filaments of magnetism lifting off the stellar surface, large-scale shaking of the solar corona, radio bursts, a coronal mass ejection and more have happened because of that event. The effect has been detected by our experimentation team in Tehran, as well.

2010

1975-2010

The effect of adding Fe₂O₃ on the bioactivity of cured ionomer cement was examined in simulated body fluid (SBF). Although the polyacrylic acid and Fe₂O₃ are known as inhibitors for apatite formation, results clearly show that exposure of the cement to the SBF lead to the formation of rough layers of carbonated-apatite (Volmer–Weber growth). Interestingly, the addition of Fe₂O₃ to the cement structure decreases the possibility of acid–base reaction in ionomer cements due to the improved chemical durability of the glass. Therefore, more calcium ions were released from the cement at the initial stage of soaking which plays an important role in forming the surface apatite layer by heterogeneous nucleation via the OH^- groups on the cement surface.

Your requested review is in Persian. For more information please see Persian Version.

Internet bandwidth of Sharif University of Technology (SUT) increased recently from 100Mbps to 155Mbps. According to the deputy of the computing center of SUT, this bandwidth is to be rised further to 310Mbps, in the near future.

Speed rise of

Internet speed increase accompanied with cost diminution around the world.

I.R. Iran:

Maximum speed for home users: 512 kbps

Price per months: ~ 314 USD for 1 mbps

Enhancement of Research Activities at MERC during 9th Government

 Four-year term of the 9th government was accompanied with intense devotion which resulted in advancements of the scientific research institutes like Materials and Energy Research Center (MERC).

This institute received awards, appreciation plates and statues from such prestigious ranking institutions like The Iran Nanotechnology Initiative Council (INIC), Ministry of Science, Research and Technology and local organizations throughout all these years.

Unprecedented increase in scientific projects, signing applied research contracts with the industrial and service organizations, signing memorandum of understanding with international educational and research organizations in line with the joint research activities, planning and signing of agreements with foreign scientific centers for admitting doctoral and post-doctoral guest students, commissioning of new laboratories and expanded laboratory services to help solving scientific problems of students and academia across the country, running tests for industrial and commercial institutes like Institute of Standard and Industrial Research, infrastructure development and enhancement of the research activities resulting in abrupt increase of the number of articles, books, patents and scientific publications have been the achievements of this period at MERC.

The latest achievement shows 4th Grade in the Laboratory Network Ranking of 2009 (1388) Nanotechnology Festival. This grade covers 2009 (1388) extensive efforts conducted at MERC. This latest rank shows 4 grades increase with respect to the previous year of 2008 (1387) which has been 8th in the Nanotechnology Laboratory Network Ranking system.