Magnesium (Mg) has been paid attention to the viewpoint of weight reduction structural materials. However, Mg alloys fabricated by ingot metallurgy process have limited applications as materials due their low mechanical property and corrosion resistance. In this research, novel Mg-Al alloy was synthesized alloying-spark plasma sintering (MA-SPS) process. Vickers hardness test X-ray diffraction ...

intellect is a fundamental topic of concern in the peripatetic philosophy. a comparison of al-farabi’s approach to ‘intellect’ (an iranian muslim philosopher with an oriental background) with that of alexander of aphrodisias’ (a greek philosopher with an occidental background) may reveal the contrasting features of aristotelian peripatetic philosophy and the islamic philosophy. basing itself on...

khwāja naṣīr al-dīn ṭūsī is one of the greatest thinkers of the middle centuries (ah), who enjoys a high status in science and literature and has a worldwide reputation. naṣīr al-dīn ṭūsī did not suffice himself merely with science (‘ilm) and thought and was involved in practical politics, too. the last two decades of khwāja naṣīr’s life in ilkhanids courts was his period of scientific and prac...

from among the most effective educational methods in the qur'an and in the conduct of the religious leaders is the admonition style. admonition is a state which brings about esoteric knowledge to one when faced with observed or apparant realities. this state, though cannot be called a method, has the function of a method. the similarity between different people or various nations in the wa...

every one of the scholars in theology, philosophy and mysticism has their own methodologies for explaining and proving the necessity for the existence of the perfect man. theologians have applied the ‘rule of grace’ in this regard. philosophers tend to prove the existence of the perfect man by means of ‘the holy capability of the acquired intellect (aql al-mustafad)’ as well as ‘divine wisdom’....

The characteristics of radio frequency identification (RFID) systems introduce growing security and privacy concerns. RFID systems need security protocols to provide confidentiality, user privacy, mutual authentication and etc. Many security protocols for the RFID system have been presented. This paper analyze several of the newest RFID security protocols which proposed by Niu et al., Fu et al....

H. Zhou et al. have proposed a chaotic encryption scheme, which is based on a kind of computerized piecewise linear chaotic map (PWLCM) realized in finite computing precision. In this paper, we point out that Zhou’s encryption scheme is not secure enough from strict cryptographic viewpoint. The reason lies in the dynamical degradation of the computerized piecewise linear chaotic map employed by...

It is a pleasure to comment on the paper by Katsikopoulos et al. (2021), where they present provocative and stimulating viewpoint in which argue that simple forecasting rules based heuristics frequently outperform big data models should be used as benchmark when testing models. I it important not conflate simplicity with adaptability, there role for forecasting.

iranian society was a patriarchal one in which men had normally the highest authorities in political, social and economic relations and women often were absent from the scene of the official policy. but, since the prior qualification of the king was his attachment to the royal origins and family, the female’s rule was practiced in the case of unavailability of the mature males. thus, seyr-al mo...