• Home
  • استحاله
    • List of Articles استحاله

      • Open Access Article

        1 - The Ontological Change in Human Existence through Passage Rites
        فاطمه Bayat Fard فاطمه Lajevardi
        Common rites in every society reflect the cultural and religious ideas of their people. The structure of a rite is built by the mythical, metaphysical and sometimes mundane believes of people who have been faithful to them for centuries. Passage rites are of the most im More
        Common rites in every society reflect the cultural and religious ideas of their people. The structure of a rite is built by the mythical, metaphysical and sometimes mundane believes of people who have been faithful to them for centuries. Passage rites are of the most important and most common practices in human societies. These rites are in fact the reminders of the most important stages of life to people and at the same time introduce some new sets of responsibilities and roles to people who are experiencing the passage. This paper considers the ontological change that is realized by man in these stages of life, including birth, puberty, marriage and death. This change is so radical that they describe it as a symbolic death to one's previous being and birth to a new one. When brought to birth, man is not yet complete unless he undergoes successive symbolic and spiritual deaths before the final one. Manuscript profile
      • Open Access Article

        2 - Imagination and symbolism of hell from myth to mysticism
        leila aminilari Farah Niazkar
        Imagination and symbolism are tools that mythology language and mystic language choose for expressing their fundamental teachings.The concept of hell is one of the universal topics that mythology and mysticism have attention to this. Terrible images that has presented More
        Imagination and symbolism are tools that mythology language and mystic language choose for expressing their fundamental teachings.The concept of hell is one of the universal topics that mythology and mysticism have attention to this. Terrible images that has presented from this evil and dark place in the mythology, expresses human’s depth of thought and world review in old ages and shows the man’s deep religious and moral needs.The hell-this valley of fire and eternal of the spirit’s fearful metamorphosis- has described in most texts with the words are related to material.The hell’s fire punishes evils and from another dimension, is a passage way for the ascent of the soul and the soul attains perfection with symbolic passage from fiery hell in its evolution.Also from a mystical view, the allegorical of hell is a point to degrees of separation and neglect from manifestations of God and to be cover sensual veil.If we die out the fire of internal hell, we can travel the path to perfection in a heavenly relaxation.With a look to the process of human’s insight to the hell’s concepts and its teachings, from the mythology world to mysticism’s arena, causes the extent of vision and a deeper understanding of different dimension of the adventure.  Manuscript profile
      • Open Access Article

        3 - Synthesis of Alumina Composite Nanopowders using Aluminium Chloride Hexahydrate and Colloidal Silica via Sol–gel Method
        A. Sedaghat E. Taheri-Nassaj G.D. Soraru R. Ceccato T. Ebadzadeh
      • Open Access Article

        4 - Allegorical, and symbolic attributes of “Transmutation” in “Blind Owl” by Sadegh Hedayat
        Masoud Sepahvandi Roya Taheri
        Sadegh Hedayat is one of the most extraordinary, and peculiar Iranian contemporary writers, whose works shows a diverse range of concepts, and could be considered from different perspectives. The “Blind Owl”, his most remarkable work, is a reflection of how More
        Sadegh Hedayat is one of the most extraordinary, and peculiar Iranian contemporary writers, whose works shows a diverse range of concepts, and could be considered from different perspectives. The “Blind Owl”, his most remarkable work, is a reflection of how the interactions between history, social situations, psychology and individualism has affected him as well as each other. “Blind Owl” is a historical grief of human being, which due to presenting a dark atmosphere rather than so called vulgar daily life, has been mentioned by European literature as “Dark Literature”. In this symbolic, allegorical story, you can find examples of Transmutation, which is almost unusual in Hedayat’s as well as other contemporary writer’s works, reflecting his especial notions and mentality. The goal of this research is to introduce, describe, and interpret, these symbolic attributes of transmutation in “Blind Owl”. Manuscript profile
      • Open Access Article

        5 - A Look at the Transformation of Signs in Forough Farrokhzad's Poetic Thought
        Mostafa Bagheri Zahra Eshaghi Ahmad Forouzanfaf Nazila Khosravi Tarnik
        Since the system of signs is constantly changing and transforming due to the change in social structures, paying attention to the metamorphosis of signs in the poetry of a particular poet can be a way to know the changing meanings of signs. Through the language of Forou More
        Since the system of signs is constantly changing and transforming due to the change in social structures, paying attention to the metamorphosis of signs in the poetry of a particular poet can be a way to know the changing meanings of signs. Through the language of Forough Farrokhzad's collection of poems, this research has shown the context of explaining and understanding his mental feelings, which are expressions of external experiences in the language of his poetry. The current research has been selected with a descriptive-analytical method and by selecting poems by Forough Farrokhzad in Captured, Wall, Rebellion, Another Birth poetry books, and Let's Believe in the beginning of the cold season. The researchers are looking for the extent to which the poems of Forough Farrokhzad adhere to the external nature of the signifiers in the dictionary, and where these signs have become impossible among other signs. The results of the research show that the implied meanings have been investigated in eight categories night, death, sun, love, perfectionism, water and its symbols, tree, window, and the symbol of the night have the highest frequency of change and transformation. In the books of Captured, Wall, and Rebellion, there is still no trace of this way of speaking and the special arrangement of signifiers and signifiers, and what is there is a simile and a little metaphor, but in the poems of other collections of births, let's believe in the beginning Cold season, Forough expresses many elements and manifestations of nature in line with the expression of his thoughts, symbolically and impossibly in diverse and different meanings. Manuscript profile
      • Open Access Article

        6 - .
        Mahdi Dehrami
      • Open Access Article

        7 - تحلیل اجزای محدود فرآیند سخت گردانی استحاله ای سطحی با استفاده از منبع حرارتی متحرک بهمراه اعمال استراتژی کنترل سرعت جهت کاهش مشکل عیوب در لبه ها
        آرش خواجه سید احمد جنابعلی جهرمی حبیب دانش منش
      • Open Access Article

        8 - Study the phase transformation of Ti-6242 alloy and Determination the beta-transus temperature
        علیرضا حجاری مریم مرکباتی رامین حسینی یاور منصوری مهدی عباسی
        The aim of this research is to determine the beta transus temperature of two Ti-6242 alloys and to study the effect of different amount of alloying elements on alpha and beta phase stabilization by microstructural observation and hot torsion test. Determination of beta More
        The aim of this research is to determine the beta transus temperature of two Ti-6242 alloys and to study the effect of different amount of alloying elements on alpha and beta phase stabilization by microstructural observation and hot torsion test. Determination of beta transus temperature has an important influence on designing thermomechanical and heat treatment cycles of titanium alloys. Hence, this is an effective parameter to control mechanical properties of two phase titanium alloys. In this regard, hot torsion tests were performed at temperature range of 960 °C to 1090 °C using the strain rate of 0.001 s-1 by cooling with the rate of 0.5 °C/s. besides, in order to deduce the temperature of grain boundary alpha phase nucleation and microstructural evolution, the specimens were heat treated at temperature range of 980 °C to 1020 °C for 40 minute and water quenched. It was found that, 10 % increase in Aleq/Moeq ratio, makes a 5 °C increase in beta transus temperature of the Ti-6242 alloy. Accordingly, this temperature was estimated in the temperature range of 1000 °C to 1010 °C for these alloys. Furthermore, there is a 10 °C deviation in the hot torsion test results and microstructural analysis, which is attributed to dynamic strain-induced transformation phenomenon. Manuscript profile
      • Open Access Article

        9 - Investigation of Dynamic and Static Restoration in Hot Deformation of SP-700 Titanium Alloy
        Amir hosein Sheikhali Maryam Morakkabti seyed mahdi abbasi
        In order to investigation of dynamic and static restoration of SP-700 alloy, in this study continuous and interrupted hot torsion tests carried out at 850 and 1000ºC at different pass-strains and inter-pass times. The dominant mechanism in hot deformation at 1000&d More
        In order to investigation of dynamic and static restoration of SP-700 alloy, in this study continuous and interrupted hot torsion tests carried out at 850 and 1000ºC at different pass-strains and inter-pass times. The dominant mechanism in hot deformation at 1000°C is dynamic recrystallization (DRX) and consequently the entire microstructure comprises equiaxed grains, whereas at 850°C serration and tanglement of the grain boundaries were observed. Nevertheless, the microstructure of sample twisted at 850°C, indicates the occurrence of DRX and the formation of very fine grains. The mechanism of the formation of recrystallized grains in the vicinity of grain boundaries and triple points is bulging. With an increase in pass-strain (ε=0.5) at 1000°C, due to the increase in driving force for nucleation and growth of new grains, the kinetics of static restoration increases. In fact, at 850°C, in addition to static restoration there is another factor contributing in fractional softening which is β to α phase transformation. Manuscript profile