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Author(s): 

Qasemi Firouzabadi Narges | Rahimi Sayyidah Vahideh | Rahman Setayesh Muhammad Kazem

Journal: 

Quranic Doctrines

Issue Info: 
  • Year: 

    2023
  • Volume: 

    20
  • Issue: 

    37
  • Pages: 

    239-268
Measures: 
  • Citations: 

    0
  • Views: 

    170
  • Downloads: 

    17
Abstract: 

How to profoundly change the beliefs of the polytheists during the age of revelation from the denial of the Prophet (pbuh) to the certainty of his Message and the acceptance of his full guardianship is a question worthy of attention. The order of verses about prophecy based on the order of revelation is the reason to lead a transformative Process and a special Quranic method in institutionalizing the belief of prophecy in the lives of Arabs. In the first stage, the Holy Quran in the first Makkī (Arabic: المکّیّ, suras revealed in Mecca) chapters has prepared the community from the motivational side to accept the truth of the Prophet’s (pbuh) prophecy and briefly stating the key issues surrounding it. The Holy Book of Quran at the time of the emergence of oppositions and doubts (the second stage) destroyed the arguments of the polytheists and explained the prophecy and proved its authenticity from a cognitive perspective in the second stage by presenting clear arguments. and the Holy Book of Quran in the third stage after Madanī (Arabic: المدنیّ, suras revealed in Medina) period has undertaken measures in order to fulfill the goals of the Massage by explaining the true position of the Prophet (pbuh) to deepen and operationalize the Prophetic belief through explaining practical duties for the Prophet (pbuh) and behavior based on the acceptance of Walaya (Arabic: ولایة, meaning “guardianship” or “governance”).

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Issue Info: 
  • Year: 

    1385
  • Volume: 

    2
Measures: 
  • Views: 

    561
  • Downloads: 

    0
Abstract: 

مدیریت زنجیره تامین در نیمه دوم قرن گذشته توسعه فراوانی یافته و در قرن حاضر نیز این توسعه ادامه داشته است. یکی از زمینه هایی که امروزه مورد توجه فراوان قرار گرفته است، توسعه و انطباق روش های کنترل تولید و موجودی با فلسفه تولید بهنگام در سطح خطوط تولیدی و به منظور کنترل مناسب جریان مواد و محصولات در سطح زنجیره تامین است. به همین منظور در این مقاله سعی میشود تا سیاست کششی- فشاری کار در جریان ثابت(CONWIP)  با شرایط زنجیره تامین تطبیق داده شده و در انتها مدل فوق بهینه سازی گردد. در فرآیند بهینه سازی نیز با توجه به ماهیت پیچیده زنجیره تامین، از روش بهینه سازی شبیه سازی و الگوریتمهای ژنتیک و جستجوی محلی هدایت شده استفاده خواهد شد که انعطاف پذیری فراوانی را به منظور حل مساله دارا می باشند. در انتها نیز نتایج اجرای مدل مورد بررسی و تحلیل قرار خواهد گرفت.

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Journal: 

GEOGRAPHICAL DATA

Issue Info: 
  • Year: 

    2021
  • Volume: 

    30
  • Issue: 

    119
  • Pages: 

    27-45
Measures: 
  • Citations: 

    0
  • Views: 

    321
  • Downloads: 

    0
Abstract: 

Introduction: Nowadays, UAV photogrammetry has become one of the most effective methods of collecting spatial data according to the factors time, cost, quality and variety of outputs among terrestrial and aerial mapping technologies. Because the quality of a UAV photogrammetry products depends on the network design parameters setting according to the existing conditions and limitations, therefore, awareness of the behavior and impact of network design parameters on the quality of 3D reconstruction to achieve optimal quality of outputs is a very important issue. However, due to the time-consuming and the high cost of doing this study with huge real data, comprehensive research has not yet been conducted to measure the behavior of the effective parameters in network design and 3D reconstruction. There are various parameters include camera field of view, positioning error and imaging tilt in flight navigation, flight altitude and designed ground pixel dimensions, amount of sidelap and overlap images, image observation noise due to image quality, aerial triangulation error, in the Process of preparing the map from aerial images, which is known as the most important parameters of UAV photogrammetric network design. In this paper, the simulation method is used to investigate the effect and behavior of the above parameters on the quality of three-dimensional reconstruction. : In the proposed method in MATLAB software environment, from a point with known 3D coordinates, using the collinearity equations and the value set for the network design parameters and their standard deviation according to the reality and experience of the expert, the imaging is done in a simulated manner. Then, by applying random and systematic errors on the visual observations and aerial triangulation parameters, the collinearity equations of the photographic observations form the desired point and using the least squares method of error in solving nonlinear equations, three-dimensional reconstruction, and quality are performed, then it has been evaluated by the Monte Carlo method. To achieve the results with high reliability, the quality of three-dimensional reconstruction is evaluated in five modes, respectively, ideal, excellent, good, average and bad, according to the expert opinion in setting the values of each parameter. Results & Discussion: The results of this study show, most effective parameters in the quality of three-dimensional reconstruction in ideal conditions are camera instability, error of exterior orientation parameters and image quality, respectively, which gradually give way to parameters of flight altitude, imaging coverage and camera field of view in bad conditions. The results of the flight navigation error show, increased imaging platform instability has no significant effect on the average accuracy of 3D reconstruction, however, the accuracy changes in different places increase up to 20% due to the heterogeneity of the coverage and the visibility of different parts of the earth in the video network. The results also show that with increasing geometric instability of the non-metric camera, the accuracy of 3D reconstruction decreases linearly, in this regard, the imaging in bad conditions and the quality of the camera, the slower the reduction speed. It has also been shown that with increasing image observation error, which depends on image quality, the accuracy of 3D reconstruction decreases linearly. The results of the study of aerial triangulation parameters show that the three-dimensional reconstruction error increases linearly with increasing tie point matching error. In addition, as the focal length increases in the fixed flight altitude mode, the horizontal accuracy increases in proportion to the inverse magnification, and as the focal length decreases, the altitude accuracy decreases linearly, in the fixed ground sampling distance (GSD) mode, the horizontal error of 3D reconstruction is slowly reduced to 20%, while the height error increases with increasing height and decreasing the geometric resistance of the network by a factor of half magnification. The results also show that unlike traditional photogrammetry here, with increasing flight altitude, the horizontal and altitude errors of the 3D reconstruction increase linearly. The results of the study of the parameters of sidelap and overlap images show that the sidelap and overlap images can change the surface error up to 10 times and the height error and complete three-dimensional reconstruction up to 5 times. Conclusion: This study, while introducing the effective parameters in three-dimensional reconstruction by UAV photogrammetric method, has investigated the behavior and effect of these parameters on the quality of three-dimensional reconstruction in the simulation environment. This means how the quality of the reconstruction changes with minor changes to each of the parameters from half to twice the standard mode. Therefore, the closer this simulation is to reality, the more practical the results will be. Naturally, this complicates the simulation and increases the computational volume. Although this simulation is not entirely consistent with the actual situation, it can provide a kind of behavioral measurement of the parameters that serves as a complementary research to routine try and error investigations.

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Author(s): 

Journal: 

Environ Proces

Issue Info: 
  • Year: 

    1396
  • Volume: 

    4
  • Issue: 

    3
  • Pages: 

    563-572
Measures: 
  • Citations: 

    1
  • Views: 

    156
  • Downloads: 

    0
Keywords: 
Abstract: 

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Issue Info: 
  • Year: 

    2023
  • Volume: 

    22
  • Issue: 

    126
  • Pages: 

    55-65
Measures: 
  • Citations: 

    0
  • Views: 

    150
  • Downloads: 

    0
Abstract: 

Measurement of sulfur compounds in the tail gas flow in the sulfur recovery unit is necessary in order to fine control the combustion furnace airflow and efficiency enhancement. In this research, required equations for calculation of air demand in feedforward and feedback control loops in the sulfur recovery unit of Ilam Gas Treating Plant are developed. First, the Process was simulated. Then, using MLP neural network and nonlinear regression, K factor was determined for tail gas analyzer air demand calculation. Total required air is sent to the combustion furnace through two lines: trim and main, such that 92. 5% of air is passed through the main line. Meanwhile, tail gas analyzer air demand is in the range of-5 to +5 % of the total required air. The presented equations in this research can be employed for other sulfur recovery units.

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Journal: 

Quranic Doctrines

Issue Info: 
  • Year: 

    2023
  • Volume: 

    20
  • Issue: 

    37
  • Pages: 

    181-211
Measures: 
  • Citations: 

    0
  • Views: 

    148
  • Downloads: 

    13
Abstract: 

Resistance is one of the fundamental Quranic values in the cause of the development of the Islamic society and the formation of the Islamic civilization, which means standing and resisting against something has upset the balance in internal and external dimensions. The formation of this value in the society as one of the methods of the conventional model of human life in the fields of human life; So that its manifestation can be observed in the totality of social behaviors, it is called the culture of resistance (Problem statement). The purpose of this article is the achievement of the engineering Process of this value in a society based on the growth-oriented thought (ideological) system of the Holy Quran (Purpose). Now the question is what Process does the Holy Quran propose in order to engineer the culture of resistance in the society? (Question). The necessity of examining this issue is clear considering the emphasis of religious teachings on this value and the need for Islamic societies, especially considering the current conditions of Islam and the need for convergence and coordination between the resistance front (Necessity). The research method in stating the engineering Process and its components is qualitative content analysis with an analogy approach (Method). The findings of the research show that the engineering Process of resistance culture is based on a self-awareness and purposefulness, according to the idea of Quranic growth, in a three-stage Process that leads to the happiness of man and human society (Conclusion).

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Author(s): 

Kafi Mousavi Abazar

Journal: 

Quranic Doctrines

Issue Info: 
  • Year: 

    2023
  • Volume: 

    20
  • Issue: 

    37
  • Pages: 

    269-292
Measures: 
  • Citations: 

    0
  • Views: 

    103
  • Downloads: 

    12
Abstract: 

Every single word and sentence of eloquent words have been selected and arranged in a purposeful and logical way. The Quranic researchers have sought to discover the way of relation and the philosophy of the arrangement (order and formation) of the Qur'anic verses since the Quran is the most eloquent word. The Process (semantic relations) is also defined in this way in order to provide a simple understanding of how the verses of the Qur'anic chapters are related. The content of each sura is divided into several semantic domains and the relationship between these relations is examined based on this new Process. In this paper, the Process (semantic relations) is adapted to the two suras (Arabic: سورة, chapters) of Ash-Shams (Arabic: الشمس) and al-Layl (Arabic: اللیل) in a descriptive analytical method to find an answer to the question of how the application of the Process of semantic relations leads to the discovery of the textual coherence of Suras Ash-Shams and al-Layl. Finally, it is concluded that there is a central semantic relation in each of these two surahs that the rest of the relations are arranged in different methods of expressing in order to prove or believability and better understanding of that central meaning.

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