جستجوی مقالات مرتبط با کلیدواژه « wave » در نشریات گروه « علوم انسانی »

One of the widely used metaphors in Ibn Arabi's school, used to illustrate Plurality in unity, is the metaphor of water and its various forms. From the point of view of Ibn Arabi and his followers, water is a symbol of existence that is multiplied in various forms such as drop, the sea, wave, river, snow, moisture, cloud, snow and even gem, rose water and living creatures. Malleability, purity, vitality, fluidity, motion, magnificence, covering, and astonishment are among the characteristics of water and its forms which are emphasized in Ibn Arabi's school and the poets influenced by him in Persian literature. In this article, we intend to examine this key metaphor of Ibn Arabi's school in the field of Persian poetry and prose from the seventh to ninth centuries, with emphasis on the works of Sa'deedin Hamuyi, Fakhreddin Iraqi, Azizeddein Nasafi, Sheikh Mahmud Shabestari, Shah Nematollah Vali, Shah Qasim Anvar and Jami.

Fatigue is as a reversible decrease in performance during exercise, which more understanding about its causes and cure is one of the most important approaches of exercise researches. Thus, defining the type of fatigue in different activities can increase our knowledge and also help for future studies in this field. Thus, the aim of this study was to define the contribution of central and peripheral fatigue in Bruce incremental exhausting protocol. For this purpose, 16 young healthy subjects were selected and performed modified Bruce protocol until volitional exhaustion. Transcranial magnetic stimulation (TMS), M-wave, maximal voluntary contraction (MVC) of the tibialis anterior muscle and rate of perceived exertion (RPE) were assessed prior and immediately after exercise. The results showed significant decrease in MVC (12.5%) and TMS amplitude (10.2%), but not in M-wave amplitude (1.75%), immediately after exercise (P

The main purpose of this article is investigating the peace making role of sport in international arena with an emphasis on World against Aggression and Violence (WAVE) Program proposed by the Iranian President. The methodology used in this study is content analysis, and findings indicated that sport is one of the most prominent elements in the new millennium. Developing countries like China, Brazil, South Africa, India and Russia utilize sport as one the most prominent tool to realize their goals through sport. Iran can do the same as well. Among all 34 questions, “Sport as a war alternative and promoter of international friendliness” factor ranked the first.

The Shahnameh of Ferdowsi is a dynamic and living epic: everything is in action and circulation; there are diverse, strange, and paradoxical phenomena. The battles and wars are so beautifully visualized that the reader easily identifies with them as if he could hear the sirens and horns and the clinking of the swords and shields. This magic, enchanting atmosphere takes the reader away like a wave in a way that he does not have the chance to see the bubbles of the waves being pushed to the shore. The present article is a quick reflection by somebody mounting the high waves of Shahnameh upon the bubbles being pushed to the shore.

During the last three decades, the process of producing topographic information has observed a development in data producing technology, from traditional and land mapping toward inactive methods of surface measurement and registration (like photogrammetry and remote sensing), and more recently toward active methods (like radar and Lidar). Lidar is a technique used to gather information from the surface which works by measuring distance with laser. Measurement in Lidar is based on this principle: with defined coordinates of the laser sending point, it is possible to measure coordinates of any point on the ground by measuring the oblique distance between pulse sending point and the ground surface and measuring the angle of wave sent between the pulse sending point and ground level. Images produced using Lidar data have a 472*697 pixel dimension. In fact, Lidar is a supplementary tool for collecting 3 dimensional information which aid spatial photogrammetry and remote sensing. The most important information received from this device is the distance between sensor and ground level which is measured by calculating the time period between pulse impact with earth surface and its return to the sensor. Moreover, the distance between ground surface and flying level of the airplane is repeatedly measured which determines ground surface and vegetation. Digital elevation model and digital surface model are products of Lidar. Features like plot parameters, average elevation of trees, surface of vegetation crown, elevation of the vegetation crown, diameter at breast height, single trees and jungle structure can be exploited by Lidar. The present article seeks to introduce Lidar and investigate its functions and applications.

From centuries ago، Muslim scholars and philosophers، by inspiration from luminous verses of holy Quran and with strong rational reasons، have proved that science and awareness flow in all levels of existence، particularly in material things. The experimental scientists also have pointed to the possibility of presence of a kind of consciousness and awareness in matters and apparently non-living things. Science extension in the whole existing world، even in material particles، brings physics to the discussion too. In quantum theory، there are some phenomena (e. g. delayed choice experiment) which show that particles are aware of their surroundings and thus choose the suitable behavior correspond to their environment; also، in some alternative models of the standard quantum theory (Bohm-de Broglie model)، there are some concepts such as ‘pilot wave’ or ‘information field’، which may be considered as the reasons of the particles’ sensitivity (consciousness).

The subject of production, dissemination, disclosure and understanding sound is considered one of the most important and more or less complex phenomena of nature; for this reason, fewer scientists in ancient and middle civilization have properly dealt with it.Qorazeye Tabiiyyat which is attributed to Ibn Sina is some passages in the form of questions and answers has discussed this most important topic. By studying the background of sound in the ideas and theories of ancient scientists and reappraisal of the context of Ibn Sina’s ideas concerning the phenomenon of sound, scientific points included in the theory of Ibn Sina is explained in modern scientific language and on the basis of formulations and principle of contemporary physics.Ibn Sina has been quite aware of some of the principles of the dissemination of wave sound and given the examples which he offers it is clear that he has been conscious of the nature of wave sound and the way of its dissemination in solid and liquid material as well.