List of Articles هیبریدی

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  1 - Factors and Obstacles Affecting the Role of Civic Institutions in the "Reform Period" in Iran: The Internal Dynamics of a Hybrid Political System
  Alireza  Khoshbakht Majid tavasoli Mohammadmahdi mojahedi
  The purpose of this article is to discuss the political ups and downs of the “Reform era” in Iran (1997-2005). To analyze the “Islamic Republic of Iran” as a political regime and its dynamics, “Hybrid Regimes” theories have been used in current work. Such theories rejec More

  The purpose of this article is to discuss the political ups and downs of the “Reform era” in Iran (1997-2005). To analyze the “Islamic Republic of Iran” as a political regime and its dynamics, “Hybrid Regimes” theories have been used in current work. Such theories reject the duality of Democracy-Authoritarianism and try to provide essential concepts for analyzing the regimes which are in the middle of the spectrum. Those regimes have unique features in comparison to Democratic or Authoritarian regimes. To analyze the Islamic Republic of Iran as a political regime and to explain the ups and downs of the “Reform era” in Iran, the studies of four researchers on “hybrid Regimes” have been used here. Some of the keynotes which have been applied to the current study to discuss the political ups and downs of that specific period are as follows: the importance of political competition, social and political backgrounds of creation of the Islamic Republic of Iran as a hybrid regime, and finally, the relation between such a regime and rentier economy in Iran. Finally, the article has concluded that the reformist’s earlier progress and their later withdraw and defeat could be considered as “inner dynamics of a hybrid regime” instead of the “the defeated transition to democracy”. Manuscript profile
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  2 - The relationship between governmental method and the process of democratization and consolidation of democracy (Case study: Islamic Republic of Iran)
  Mansour  Ansari Mir ghasem seyedinzad
  Basically, the issue of democratization and consolidation of democracy has been the main concern of humanity, especially intellectuals and philosophers throughout history; because, firstly, democracy is the most effective system for achieving balance and only order invo More

  Basically, the issue of democratization and consolidation of democracy has been the main concern of humanity, especially intellectuals and philosophers throughout history; because, firstly, democracy is the most effective system for achieving balance and only order involves the least evil, and secondly, in the words of Alfred Smith, all the failures of democracy can be cured with more democracy. However, the rate and percentage of failures and defects are not the same in all countries; For this reason, it is necessary to analyze the systems that have fulfilled all the conditions of democracy to a great extent, the systems that have fulfilled some of the conditions of democracy and the systems that sometimes even have the minimum conditions of democracy. Systems with the first feature are usually democratized, systems with the second feature are hybrid, and systems with the third feature are undemocratic. Each of these governance methods has a direct or indirect relationship with the process of democratization and the consolidation of democracy. In principle, the main problem and question in this research are to explain the relationship between "governmental method" and "the process of democratization and consolidation of democracy" (problem and question). Achieving this goal is pursued with the help of "descriptive-analytical" methods and using the library and digital resources (method). It seems that among the various models of democracy, "minimal democracy" is more closely related to the governing periods of the Islamic Republic of Iran, and "maximum democracy" has the most positive impact on the "process of democratization and consolidation”. (Findings) Manuscript profile
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  azam ghasemi
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  4 - Improvement of Harmonic Losses and Power Quality Due to Matrix Converter Switching in Bidirectional Feeding Induction Generator Using Passive Hybrid Filter
  neda ghaderi hoda naderi Mohammad عابدینی محمدحسن مرادی
  <p>In two-way feeding induction generators, the stator coils connect directly to the grid, while the rotor coils connect through power electronic converters. Back-to-Back (BTB) converters are commonly used but suffer from high losses, size, and weight due to their two-s More

  <p>In two-way feeding induction generators, the stator coils connect directly to the grid, while the rotor coils connect through power electronic converters. Back-to-Back (BTB) converters are commonly used but suffer from high losses, size, and weight due to their two-stage structure and DC link capacitor. This paper proposes replacing BTB converters with matrix converters for improved efficiency and compactness. The proposed method utilizes direct power control in the matrix converter for superior tracking of reference values during changes in both reference and turbine power. However, power electronic converters can introduce harmonics and power fluctuations. To address this, a passive hybrid filter is employed at the converter's input and output. This filter reduces active and reactive power fluctuations, improves Total Harmonic Distortion (THD), and enhances overall power quality. Additionally, the matrix converter's fast dynamic response to reference power changes eliminates the need for complex current control loops, resulting in a simpler structure with minimal calculations. The paper compares the performance of the proposed method (matrix converter with filter) against scenarios with and without a filter. The results demonstrate the filter's effectiveness and superiority in achieving optimal performance.</p> Manuscript profile
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  5 - External Skeletal Fixators in Small Animal
  hamid reza moslemi navid Ehsani pour Faeze  Emarloo
  An external skeletal fixator is an orthopedic method for treating open or closed fractures of long tubular bones, joint stiffness, bone lengthening, and congenital malformations. An external skeletal fixator is a device that is installed outside the organ and inserts p More

  An external skeletal fixator is an orthopedic method for treating open or closed fractures of long tubular bones, joint stiffness, bone lengthening, and congenital malformations. An external skeletal fixator is a device that is installed outside the organ and inserts pins into the fracture to fix it and adjust the position of the pin. They are connected to the frame and secured with bolts and nuts. Fixtures have changed significantly in appearance and biomechanics over time, but the principle and function remain the same. These fixtures consist of pins or thin stainless steel wires that penetrate the skin and reach the bone. This way the broken part is fixed in the right direction. Depending on the body geometry and shape, these external skeletal fixators are available in different types such as linear, circular, and hybrid fixators. The simplest and most common type of external skeletal fixator is the linear fixator. The use of an external fixator has several advantages over other fixation methods such as stabilization of the fracture at some distance from the injury site, no need for a cast, ease of patient movement, and minimal involvement of the joint. Premature loosening of the pin is the most common complication causing pain, inflammation, and discharge from the pin tract. Although these fixators are versatile and effective treatment models, they require careful maintenance during treatment. Before deciding to use an external fixator, the patient's and pet's owner's ability to comply with postoperative care instructions should be considered. This article reviews the types of external fixators, postoperative care, and their complications. Manuscript profile
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  6 - Fault Detection and Localization in Hybrid Shipboard Electrical Power Grids Using Wavelet Transform
  Mohsen Aliyani Arash Dehestani Kolagar Mohammad Reza  Alizadeh Pahlavani
  <p>In the hybrid shipboard power networks, the possibility of occurrence of various types of faults is very high. According to the studies conducted in the field of fault detection and localization in hybrid microgrids, the lack of comprehensive fault management techniq More

  <p>In the hybrid shipboard power networks, the possibility of occurrence of various types of faults is very high. According to the studies conducted in the field of fault detection and localization in hybrid microgrids, the lack of comprehensive fault management techniques to protect the microgrid against short-circuit faults is the main obstacle to the use of hybrid microgrids in vessels for vital marine missions. Considering the restrictions and limitations in marine vessels, the design of an electrical protection system for hybrid microgrids requires high attention to special requirements. In this paper, an appropriate protection scheme for fault detection and localization in hybrid shipboard microgrids is presented. In this regard, fault detection, classification and localization in a period of 0.034 to 0.54 seconds are performed using an algorithm based on Daubechies order 4 wavelet transform (db4). Observing the results and analyzing them shows that the proposed algorithm can detect, classify and localize all types of faults both in the AC and DC parts of the shipboard microgrids.</p> Manuscript profile