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Scientific News
Branched Nanorod TiO2 PDF Print E-mail
Standpoints - Scientific News
Friday, 17 November 2017 17:49

6th international conference on UltraFine Grained and Nano-Structur: November 12-33, 2017 (International Convention Center, Kish Island, Iran)

INN

 
Concomitant synthesis of metal and carbon mesoporous nanopowder PDF Print E-mail
Standpoints - Scientific News
Thursday, 01 December 2011 21:45
Your requested news is in Persian. For more information please see Persian Version.
 
Efficiency Increase in Rechargeable Batteries PDF Print E-mail
Standpoints - Scientific News
Thursday, 20 October 2011 07:53
Your requested news is in Persian. For more information please see Persian Version.
 
Li microbattery PDF Print E-mail
Standpoints - Scientific News
Monday, 15 August 2011 13:30
Your requested news is in Persian. For more information please see Persian Version.
 
SMA Composite for Artificial Urinary Sphincter PDF Print E-mail
Thursday, 02 September 2010 10:00

Sphincter1Sphincter2Sphincter3

An artificial urinary sphincter made of two-way shape memory NiTi alloy embedded in silicon rubber is designed for prosthesis surgery in case of patients who suffer from urinary incontinence. The metallic part curves down when actuated by electrical current and straightens up when the current stops. This produces a smart composite for urination control in patients inflicted with spinal cord injury.

 
Solar Tsunami PDF Print E-mail
Sunday, 01 August 2010 22:05

August 1st, 2010 Solar Tsunami

On August 1st, 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.

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Production of Nanoscience in the World vs Iran PDF Print E-mail
Tuesday, 20 July 2010 18:20

2010

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1975-2010

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Hematite based ionomer cement made PDF Print E-mail
Sunday, 20 June 2010 18:52

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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.

 
Reviewing 1357 Days Dedication in 1357s PDF Print E-mail
Tuesday, 25 May 2010 17:22

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

 
Bandwidth Increase PDF Print E-mail
Saturday, 22 May 2010 11:26

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.

 
Indoor Internet Speeds and Costs Around the World PDF Print E-mail
Thursday, 06 May 2010 11:39

rawSpeed 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

 

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