سید حمیدرضا موسوی

Throughout history, Shia seminaries have always stood against tyranny and oppression and in all popular revolutions and uprisings with one or more Shia scholars, they have been at the head or part of the main pillars of the uprising. The struggles and jihad of religious scholars and elders in three axes; Issuance of fatwas, presence in the battlefield and financial support, which was done according to the type of danger faced by Muslims from colonialism, according to the strength and weakness of Muslims and also with the understanding of the situation of the time. This article, by collecting information in a library form and processing information in a descriptive-analytical way, examines the role of seminaries and scholars in holy defense, including leadership in war, formation of public mobilization, creating the spirit of sacrifice and courage, strengthening the spirit of faith, giving legitimacy. He has paid attention to the war, encouraging people to participate in the war.

The most fundamental aspect of examining and explaining the views of Western military experts regarding future wars is not only physical wars with explosive devices, but based on weightless devices that can increase the power of confrontation for the country of Iran. One of the wars is electronic warfare and its surrounding topics including electromagnetic coding and analysis as a new war in the international arena. Electronic warfare is any action that involves the use of the electromagnetic spectrum or directed energy to control the spectrum, attack the enemy, or prevent an enemy attack. Electronic warfare can be used from air, sea, land, or space by manned and unmanned systems and can target humans, communications, radar, or other assets (military and civilian). In this article, it has been tried to explain one of the methods of dealing with attacks based on electronic warfare with the approach of strengthening the country's infrastructure systems, including power plants, defense and strategic systems of the country by strengthening encryption systems. The main problem in managing the country's infrastructure is the lack of communication with other centers using non-wireless or optical secure lines. Therefore, the process of radio warfare is much more efficient due to the existence of radio channels. which includes radio communications, disrupting the enemy's radio communications and eavesdropping on the enemy's conversations.

IntroductionNowadays, sharing information in communication systems and computers demands high levels of security. Side channel attacks are mainly considered as a main challenge in cryptographic systems which they are used as attacking techniques to break encrypted devices such as smart cards. The purpose of this research is introducing a new plan for strengthening on-chip encryption algorithms. The proposed plan is based on using Phase-Locked Loop (PLL) and enhanced XOR gate in Advanced Encryption Standard (AES) algorithm. In this approach, by disturbing the power consumption and time of execution for each different round of the algorithm, the encryption algorithm is protected against Differential Power Attacks (DPA). The proposed method has been implemented in TSMC 65nm technology in Cadence and the results show that the algorithm becomes immune against DPA using this method. As overheads, the silicon area and power consumption increased about 33% and 25%, respectively, whereas, the clock rate has been reduced less than 3%. MethodIn modern digital systems, if the data in the systems carries classified information, data encryption is unavoidable. For example, encryption in smart cards, portable electronic devices, mobile phones and remote control devices use encryption systems to deal with unauthorized intruders [1][2]. One of the requirements of today's electronic systems is high speed, low power consumption and information security. The basis of this method is the combination of the two characteristics of delay and power noise injection into the system using gates,ResultsThe comparison of the results in the simulation mode showed that the system has a good resistance against DPA attacksOne of the characteristics that exist to check the ability of retrofitting methods is the amount of hardware overhead and the imposition of additional power in the proposed retrofitting method. To check this issue, the hardware overhead and power consumption of the implemented method are presented in Table (2).DiscussionWith a reasonable number of power diagrams, so that compared to In the previous designs, the number of power diagrams has been almost doubled and the only overhead cost of the system is the increase in the volume of the occupied space by 33% and the power consumption by 20%.

This study was carried out with the aim of pathology of outsourcing contract in Gas Company in Hormozgan province though a combined (qualitative- quantitative) approach. At qualitative part, thematic analysis was applied and in order to collect data, 15 experts were interviewed in a targeted way to reach theoretical saturation. Interviews were validated after initial and secondary coding throughcvi and cvr whose result was to identify 47 items. At quantitative part, data obtained from interviews was designed within Likertchr('39')s 5- point questionnaire and presented to the employees working in Hormozgan Gas Company to be surveyed by experts. Sampling of study was done through random sampling way in Morganchr('39')s table through which 167 individuals were collected. The questionnaire had face validity and its construct validity was confirmed by factor analysis way. Moreover, reliability of questionnaire was verified through Alpha Cronbach method. Findings of study indicated that outsourcing contract needs to be reviewed upon 28 indices in the human resource legal issues, regulatory issues, assessment of contractor qualification and supplying required consuming goods. In this regard, some suggestions were offered.

The present study was conducted with the aim of pathology of the components of the creativity and innovation system in Hormozgan Gas Company. This research is applied in terms of purpose and exploratory in terms of research approach. In the first stage, 13 heads of Hormozgan Gas Company were interviewed (to the extent of theoretical saturation). The interviews were analyzed by using MAXQDA software. The model of creativity and innovation was formulated with six main themes, based on six stages of Clark & ​​Brown (2006). In the second stage, in order to classify the factors affecting creativity and innovation system in the importance-performance matrix, a researcher-made questionnaire was used and the data were analyzed by using SPSS software. The validity of the questionnaire was confirmed by experts and its reliability was confirmed by Cronbachchr('39')s alpha. At this stage, the statistical population consisted of all employees working in the administrative units of Hormozgan Gas Company. The sample size was determined using the Cochranchr('39')s formula of 140 people .The research findings indicated that the human resources unit, strategic cross-organizational constraints, intra-organizational constraints and organizational culture are very important in terms of creativity and innovation, and given the poor performance of the firm, these components should be given more attention by relevant officials.

Recently, a number of Extreme Learning Machine (ELM) based training algorithms have been introduced for training deep neural network structures. ELM based Auto-Encoder (ELM-AE) is one such algorithm that has been used for making multilayer structures and tuning parameters of each layer. In a simple ELM-AE training algorithm, the weights of the first layer are initialized randomly. This issue is a leading factor in producing reconstruction error. The frequent use of ELM-AE in deep network layers results in propagating such errors through deep structures and in decreasing performance as a consequent. In this paper, we introduce a multilayer structure and a new learning algorithm to train it that prevents error propagation. In order to boost the performance of the model, the parameters in the first layer are initialized by a novel type of ELM-AE called Repeated-AE (RAE) rather than by a random selection method. This RAE-based technique determines the parameters in the first layer far better than do the other ELM-AE existed methods. Next, a single hidden layer ELM is applied for handling the classification task. Experimental results for data classification show that the proposed method outperforms some other methods in terms of the average accuracy over all datasets by amounts of 4%, 26%, 17% and 31%. Eventually, so as to verify the performance of the proposed multilayer ELM-AE in application, we used this model to reconstruct images. The reconstructed images obtained by our approach appeared visually a lot better compared to those obtained by the other methods do.

Now days, sharing data in communication systems and computers require high levels of Information security. Side channel attack is one of the methods which it is applied to attack cryptographic systems such as smart cards. In this paper, a new approach for countermeasuring cryptographic algorithms has been proposed and implemented on FPGA. The scheme is based on using Phase Locked Loop in AES algorithm which by disturbing power consumption pattern and execution time of different rounds, the resistance of the algorithm against power attack has been increased. Masking and hiding technique has been used to protect the encryption key. Overall, the proposed method has been simulated within TSMC 65nm technology platform and outstanding success has been obtained; in applying the technique to AES, the overhead was 13% in CMOS area, 15% in power consumption, 2% decrease in working frequency while finding the key became difficult for attackers. In addition, the proposed method has been implemented on FPGA and satisfactory results have been obtained for an acceptable number of samples of the power trace.

Results obtained from geotechnical studies show that the amount of shear wave velocity in various parts of soil is dependent on location of each particle. Therefore, changes of shear wave velocity in soil depth introduce soil as an inhomogeneous material. This research studies the seismic performance of retaining wall in inhomogeneous soil through presenting a proper model which considers mechanism of soil-wall system. In this study, analytical studies have been done in plane strain with rigid retaining wall and linear viscoelastic soil. In order to understand seismic performance of retaining wall, lateral pressure of soil on wall, shear force of retaining structure and bending moment on the wall are presented. Results of this research show that the amount of lateral earth pressure on the wall is dependent on changes of soil shear wave velocity, seismic excitation frequency and geometric parameters of system and response of system is different from homogenous soil. Distribution of inhomogeneous soil lateral pressure expresses that by increasing shear wave velocity at soil surface to shear wave velocity at soil base, location of maximum horizontal stress change from 0.55H to 1H (H: height of retaining wall). In addition, by increasing the damping coefficient of the soil, the lateral pressure exerted on the structure decreases. In the case where the damping coefficient is equal to zero, the amount of horizontal stress increases significantly. The vertical stress of soil is maximum in the wall toe while the amount of horizontal stress is minimum at the same point. Critical vertical pressure distribution occurs in a specific excitation frequency and at the same frequency maximum amount of lateral pressure is applied on the wall. Results also show that lateral earth pressure on retaining wall makes it similar to the behavior of cantilever beam. Thus, implementing the inhomogeneous properties of soil presents a more realistic image of retaining structures and improves design of these types of structures.

Volatile organic compounds such as xylene, which are the main constituents of the oil and petrochemical industries, have serious impacts on health and can cause adverse effects on the environment. It is clear that release of these compounds into the environment should be controlled. The two-phases partitioning stirred tank bio-reactor is one of the newest methods for treating these compounds which have few side-effects besides of having appropriate efficiency; since itdestroyscontaminant completely and transform it tosafer compounds. In this study, a two phase partitioning stirred tank bio-reactor, in lab scale, was used for treating the gas stream containing xylene vapors. The aqueous phase containing the bacteria Pseudomonas putida and nutrients inserted into the bioreactor with 3:1 ratio and system performance was evaluated for 432 hours in the concentration range of 1000 mg/m3 to 3500 mg/m3 Empirical findings of this study showed that the maximum, minimum and average of removal of xylene vapors by stirred two phase bioreactor containing a pure strain of Pseudomonas putida were 94.00, 54.00 and 84.94 percent, respectively.Furthermore, maximum, minimum and average of elimination capacity of xylene were obtained 93.00,24.00 and 62.02 g/m3/h, respectively Overall, the results of the present research revealed that the application of two phase stirred tank bioreactors (TPPBs) containing pure strains of Pseudomonas putida was successful for treatment of air streams with xylene.