Institution
Islamic Azad University
Education•Tehran, Iran•
About: Islamic Azad University is a education organization based out in Tehran, Iran. It is known for research contribution in the topics: Population & Catalysis. The organization has 83635 authors who have published 113437 publications receiving 1275049 citations. The organization is also known as: Azad University.
Topics: Population, Catalysis, Adsorption, Fuzzy logic, Nonlinear system
Papers published on a yearly basis
Papers
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TL;DR: This paper aims to provide a useful survey on watermarking and offer a clear perspective for interested researchers by analyzing the strengths and weaknesses of different existing methods.
Abstract: The ever-growing numbers of medical digital images and the need to share them among specialists and hospitals for better and more accurate diagnosis require that patients’ privacy be protected. As a result of this, there is a need for medical image watermarking (MIW). However, MIW needs to be performed with special care for two reasons. Firstly, the watermarking procedure cannot compromise the quality of the image. Secondly, confidential patient information embedded within the image should be flawlessly retrievable without risk of error after image decompressing. Despite extensive research undertaken in this area, there is still no method available to fulfill all the requirements of MIW. This paper aims to provide a useful survey on watermarking and offer a clear perspective for interested researchers by analyzing the strengths and weaknesses of different existing methods.
157 citations
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TL;DR: In this paper, the computational fluid dynamics of laminar flow and heat transfer in an indented microchannel is investigated, where water/TiO 2 nanofluid has been used as a working fluid.
156 citations
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TL;DR: The results suggest that these edible green seaweeds possess antioxidant potential which could be considered for future applications in medicine, dietary supplements ,cosmetics or food industries.
Abstract: The antioxidant activity, contents of total phenolics and flavonoids were quantified in the methanolic extracts of four Ulva species (Ulva clathrata (Roth) C.Agardh, Ulva linza Linnaeus, Ulva flexuosa Wulfen and Ulva intestinalis Linnaeus) grown at different parts of northern coasts of the Persian Gulf in south of Iran. The seaweeds were collected from Dayyer, Taheri and Northern Ouli coasts in April 2011. Methanolic extracts of the seaweeds were assessed for their antioxidant activity using DPPH radical scavenging assay and was performed in a microplate reader. All species exhibited a DPPH radical scavenging activity, and among the species, Ulva clathrata demonstrated greater antioxidant potential with a low IC50 (0.881 mg mL(-1)) in comparison with those of the other species. Also the highest phenolic content (5.080 mg GAE g(-1)) and flavonoid content (33.094 mg RE g(-1)) were observed in U.clathrata. Total phenolic and flavonoid contents showed positive correlations with the DPPH radical scavenging activity (p < 0.01) and negative correlations with IC50 (p < 0.01).The results suggest that these edible green seaweeds possess antioxidant potential which could be considered for future applications in medicine, dietary supplements ,cosmetics or food industries.
156 citations
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15 Sep 2011-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, compressive strength of inorganic polymers (geopolymers) produced of seeded fly ash and rice husk bark ash has been investigated and the results indicate that the finer the particle size of the utilized ashes, the denser the microstructure which confirms the results obtained by the strength tests.
Abstract: In the present work, compressive strength of inorganic polymers (geopolymers) produced of seeded fly ash and rice husk bark ash has been investigated. Different specimens made from a mixture of fly ash and rice husk bark ash in fine and coarse form were subjected to compressive strength tests at 7 and 28 days of curing. The curing regime was different: one set of the specimens were cured at room temperature until reaching to 7 and 28 days and the other sets were oven cured for 36 h at the range of 40–90 °C and then cured at room temperature until 7 and 28 days. The results indicate that in both 7 and 28 days regimes, the highest strengths are related to the specimens by SiO 2 /Al 2 O 3 ratio equals 2.99 cured at 80 °C. For these specimens, those contained finer fly ash particles show more compressive strength. Thermogravimetric analysis and Fourier transform infrared spectroscopy both also are in agreement with the obtained results from compressive strength tests. In addition, SEM micrographs of the specimens show that the finer the particle size of the utilized ashes, the denser the microstructure which confirms the results obtained by the strength tests.
156 citations
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TL;DR: Three artificial intelligence approaches, namely artificial neural networks (ANNs), adaptive-neuro-fuzzy inference system (ANFIS), and gene expression programming (GEP), were applied to forecast daily lake-level variations up to 3-day ahead time intervals, which demonstrated the superiority of GEP, ANFIS, and ANN models over ARMA models.
156 citations
Authors
Showing all 83704 results
Name | H-index | Papers | Citations |
---|---|---|---|
Ajit Kumar Mohanty | 141 | 1124 | 93062 |
Pierluigi Paolucci | 138 | 1965 | 105050 |
Eric Conte | 132 | 1206 | 84593 |
Patrizia Azzi | 132 | 1275 | 83686 |
D. Del Re | 131 | 1406 | 87230 |
Jean-Laurent Agram | 128 | 1221 | 84423 |
Seyed Mohsen Etesami | 128 | 1101 | 76488 |
Jean-Charles Fontaine | 128 | 1190 | 84011 |
Roberta Arcidiacono | 128 | 1322 | 80917 |
Tejinder Virdee | 128 | 1208 | 74372 |
Frank Hartmann | 127 | 1116 | 81455 |
Paolo Azzurri | 126 | 1058 | 81651 |
Achim Stahl | 124 | 1248 | 111121 |
Federica Primavera | 120 | 876 | 63895 |
Riccardo Andrea Manzoni | 120 | 946 | 67897 |