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Tehran, Iran

Amirkabir University of Technology , formerly called the Tehran Polytechnic, is a public research university located in Tehran, Iran. AUT is one of the most prestigious universities, and the first established technical university in Iran, referred to as "Mother of Industrial Universities".The university was first founded by Habib Nafisi in 1958 and then developed by Dr. Mohammad Ali Mojtahedi, during the reign of the Pahlavi dynasty. Originally named the Tehran Polytechnic, it began its activities with five engineering departments. Six months before the victory of 1979 Iranian Revolution, Tehran Polytechnic was renamed after the famed Iranian prime minister Amir Kabir . With its expansion, the university now boasts fifteen science and engineering departments, and two other affiliated centers, located in Bandar Abbas and Mahshahr. There are currently around 9,100 students enrolled in the undergraduate and graduate programs. AUT has 480 full-time academic faculty members and 550 administrative employees. This gives AUT the highest staff-to-student ratio among the country's universities. The executive branch consists of four departments which receive active participation from various councils in planning and administering affairs.AUT has signed mutual agreements with international universities for research and educational collaboration. There is a joint program between AUT and the University of Birmingham.AUT is one of the leading universities in E-Learning systems in Iran which has begun its activities in 2004.Amirkabir University is the pioneer of sustainable development in Iran and established the AUT's Office of Sustainability on July 2011. The activities of the Office of Sustainability contribute to AUT's campus by reducing energy consumption, costs, and emissions, and also student coursework, volunteer opportunities for students, as well as research and education academic activities on sustainable development. Wikipedia.

Nanosheet-based microspheres of ZnO with hierarchical structures, hollow prism, and coralline-like ZnO nanostructures were successfully prepared by ultrasonic irradiation in acidic ionic liquids (AILs). The hollow spherical is made up of many thin petals, the thickness of which is only about 90 nm. In the presence of AIL2, the one prepared at a frequency of 40 kHz is a mixture of nanofibers with diameters ranging from less than 30 nm to about 100 nm. ZnO nanostructure (with AIL1) reveals lozenge-shape hollow prism structures. The products were hollow prism structure covered with some nanometric-size nanoparticles. The average size of the nanoparticles is in the range of 40-80 nm. It is found that the ultrasonic irradiation time, ultrasonic frequency, and the AILs influence the growth mechanism and optical properties of ZnO nanostructures. Producing Zno nanostructures by different traditional methods (e.g., hydrothermal method) requires basic media. These methods are not economical and environmentally friendly in many industrial processes. In so doing, a critical problem has been the point that, normally, a high concentration of base causes reactor metal corrosion. This is a simple and low-cost method, which can be expected to be applied in industry in the future. Also, importantly, the structures synthesized in this experiment can indicate a new way to construct nanodevices by self-organization in one step. © 2011 Springer Science+Business Media B.V. Source

Currently, the growing consumption of polymer products creates the large quantities of waste materials resulting in public concern in the environment and people life. Nanotechnology is assumed the important technology in the current century. Recently, many researchers have tried to develop this new science for polymer recycling. In this article, the application of different nanofillers in the recycled polymers such as PET, PP, HDPE, PVC, etc. and the attributed composites and blends is studied. The morphological, mechanical, rheological and thermal properties of prepared nanocomposites as well as the future challenges are extensively discussed. The present article determines the current status of nanotechnology in the polymer recycling which guide the future studies in this attractive field. © 2012 Elsevier Ltd. Source

Rahbar-Ranji A.,Amirkabir University of Technology
Ocean Engineering

Corrosion is one of the time dependent detrimental phenomena which reduces strength of structures and leads to catastrophic failures. All rules and regulations concerning strength of corroded plates are based on uniform thickness reduction. To estimate residual strength of corroded structures, typically a much higher level of accuracy is required, since, the actual corroded plate has irregular surfaces. There is little study on strength analysis of corroded plate with irregular surfaces especially as a function of corrosion parameters. It is the main aim of present work to study ultimate strength of corroded steel plates with irregular surfaces under in-plane compression. Nonlinear finite element method is employed to determine ultimate strength of corroded steel plates with irregular surfaces. Comparing the results with ultimate strength of corroded plates with uniform thickness, a reduction factor is introduced. Having done this, ultimate strength of corroded plates could be evaluated easily as a function of corrosion conditions. © 2012 Elsevier Ltd. Source

Zare Y.,Amirkabir University of Technology
International Journal of Adhesion and Adhesives

In this paper, various micromechanics models are applied to evaluate the interfacial characteristics between the matrix and the nanofiller phases in shape memory polymer nanocomposites (SMPNs). The models analyze the interfacial adhesion by yield strength and tensile modulus of several SMPNs from literature. In addition, the effect of interfacial adhesion on the shape memory behavior of SMPNs is discussed. All calculated parameters by modeling process demonstrate an acceptable interfacial bonding in the reported SMPNs. It is confirmed that the SMPNs, which show a good shape memory behavior, include a strong adhesion at the polymer-nanofiller interface. © 2014 Elsevier Ltd. Source

Sohrabi M.,Amirkabir University of Technology
Radiation Measurements

Highlights of findings on radiological measurements, radiobiological and epidemiological studies in some main world high background natural radiation (HBNR) areas such as in Brazil, China, India and Iran are presented and discussed with special regard to remediation of radiation exposure of inhabitants in such areas. The current radiation protection philosophy and recommendations applied to workers and public from operation of radiation and nuclear applications are based on the linear non-threshold (LNT) model. The inhabitants of HBNR and radon prone areas receive relatively high radiation doses. Therefore, according to the LNT concept, the inhabitants in HBNR areas and in particular those in Ramsar are considered at risk and their exposure should be regulated. The HBNR areas in the world have different conditions in terms of dose and population. In particular, the inhabitants in HBNR areas of Ramsar receive very high internal and external exposures. This author believes that the public in such areas should be protected and proposes a plan to remedy high exposure of the inhabitants of the HBNR areas of Ramsar, while maintaining these areas as they stand to establish a national environmental radioactivity park which can be provisionally called "Ramsar Research Natural Radioactivity Park" (RRNRP). The major HBNR areas, the public exposure and the need to remedy exposures of inhabitants are reviewed and discussed. © 2012 Elsevier Ltd. All rights reserved. Source

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