• List of Articles distortion

      • Open Access Article

        1 - Validity of the Qur'anic Document and Validity from the Viewpoint of the Separation School (Emphasizing on Mehdi Esfahani's views)
         
        The Qur'an is the first and foremost source in the interpretation of the teachings of Islam, the validity of which is accepted by the majority of Muslim thinkers, but historically some - whether Sunnis or Shiites like the Qur'an and the Akhbaris - in either or Both have More
        The Qur'an is the first and foremost source in the interpretation of the teachings of Islam, the validity of which is accepted by the majority of Muslim thinkers, but historically some - whether Sunnis or Shiites like the Qur'an and the Akhbaris - in either or Both have been in doubt or denied. The school of separation led by Mirza Mehdi Esfahani has had a particular interest in the source of traditions, but has a different position on the validity of the Qur'an as the epistemic source of religion. This article will show that the separatist schools, especially their first spectrum, either questioned or denied the validity or validity of the Qur'anic scripture, or they needed it. The first part of the article explains the position of some of the schools of distinction regarding the damage to the validity of the Qur'anic document by proposing a theory of distortion and its criticism. The second part of the article is devoted to examining and criticizing their position on undermining the validity of the Qur'anic verses by focusing on such arguments as: the division of human science into divine and human, the divisive aspect of the Qur'anic traditions, the separation of texts from appearance. Manuscript profile
      • Open Access Article

        2 - Design and Analysis of a Novel Robust and Fast Sliding-Mode Control with Multi-Slope Sliding Surface for Single-Phase Three Level NPC Inverters under Different Loads and Reduce the Output THD
        B. Khajeh-Shalaly G. Shahgholian
        In this paper control structure with robust performance in presence of parametric uncertainties of the converter in order to improve pure sinusoidal inverter in whole functional and loading conditions is rendered. The controller guarantees fast and accurate behavior of More
        In this paper control structure with robust performance in presence of parametric uncertainties of the converter in order to improve pure sinusoidal inverter in whole functional and loading conditions is rendered. The controller guarantees fast and accurate behavior of the converter in order to increase the output voltage quality and reduce output harmonics. This controller by sliding performance and utilizing output voltage and capacitor current used in the control process, not only has exact output voltage tracking from reference but also has ability to reject the periodic disturbances due to loading. Also, it guides error states to zero rapidly and makes transient states of the converter as well as possible at error moments that is the same high spikes and loads in output current. Another characteristic of the proposed controller is, improved stability region under wide ranges of loading in different conditions. Accuracy of proposed controller on a single-phase three level NPC inverter which has high sensitivity in control in order to increase quality, decrease harmonics and THD output has been compared with a single-slope sliding mode controller with the sane loading conditions and reference. The simulations results are obtained by MATLAB. Manuscript profile
      • Open Access Article

        3 - Two New Switching Methods to Speed Control of Induction Motor with Eleven Levels Inverter
        M. S. Orfi Yegane N. Ghaffarzadeh Mohammad Sarvi
        By using usual industrial switching methods, two new multicarrier PWM (MCPWM) methods are proposed in this paper to improve the output voltage characteristics for eleven levels diode-clamped inverter. DC component and Even harmonic orders of the output voltage are total More
        By using usual industrial switching methods, two new multicarrier PWM (MCPWM) methods are proposed in this paper to improve the output voltage characteristics for eleven levels diode-clamped inverter. DC component and Even harmonic orders of the output voltage are totally eliminated in the proposed VFCBOD and COOD methods by applying the phase shift in the carrier wave (carrier-based); so total harmonic distortion (THD) and torque ripple are reduced. By using the both proposed methods, the number of pulses per cycle equally are distributed and increased the lifetime of the switches. In this paper, a full bridge has been series with each phase of eleven levels diode-clamped inverter to change the polarity of the voltage to produce more switching patterns to generate the specified voltage levels. Then, by determining suitable switching patterns, the inverter can be driven with the least of switches when there is a failure and finally increased the reliability of the whole system. Manuscript profile
      • Open Access Article

        4 - Typology of types of distortions in the book Tahzeeb al-Ahkam of Sheikh Tusi
        zahra sarkhoshi Mohammad Ali Rabbipour Alireza  Radbin Razia Shirini
        Undoubtedly, hadiths are a precious treasure among the epistemic sources of Islamic thought. The use of this precious treasure requires preliminary steps, one of which is to identify the damage so that the hadith researcher can remove its undesirable consequences in the More
        Undoubtedly, hadiths are a precious treasure among the epistemic sources of Islamic thought. The use of this precious treasure requires preliminary steps, one of which is to identify the damage so that the hadith researcher can remove its undesirable consequences in the field of understanding hadith. "Correction" means changing a part of the hadith to another word or phrase. It is one of the plagues found in the hadiths, which requires research to identify and fix its consequences. Since a slight change in the letters and words will make it difficult for us to understand the main meaning of Masoom (PBUH) and fail us in reaching a correct and acceptable meaning, it is very important to pay attention to the phenomenon of spelling. "Distortion" in the meaning of changing the word or meaning of the hadith is one of these plagues in the hadiths that requires careful research to identify it and pay attention to its adverse consequences. The distortion of religious texts has a long history and has long been the subject of attention and concern of Islamic thinkers, especially hadith scholars. This article is written with a descriptive-analytical method with the aim of explaining the factors and consequences of distortions in hadiths. Since a small change in letters and words fails us in reaching the main intention of Masoom (pbuh), it is very important to pay attention to the damage of "distortion". Keywords: hadith jurisprudence, tasheef, distortion, effects, tahteeb al-ahkam. Manuscript profile