mehran mohammadi

In the great Persian Empire, pomegranate (Punica granatum L.) had a wide reputation for use both as an herbal medicine and nutritious food. It was also a symbol of peace and love according to Achaemenid limestones in the great Persia. This paper aims to review the traditional uses of pomegranate in Persian and Islamic traditional medicine and have thorough and current information regarding the pharmacology and phytochemistry of this valuable plant for practical use and further research. Relevant information about P. granatum was collected from scientific publishers and databases including Elsevier, Wiley, PubMed, and Google Scholar between 1950 and 2022. The traditional knowledge was extracted from Persian and Islamic traditional textbooks. Based on traditional textbooks, pomegranate has beneficial effects on diseases related to gastrointestinal, upper and lower respiratory, visual, and reproductive systems. In addition, pomegranate and its preparations have been prescribed for treating metabolic disorders, skin problems, and wounds as well as dental protection. Preclinical and clinical evidence supports many therapeutic potentials of pomegranate in traditional medicine. Its therapeutic effects are mostly attributed to its polyphenols. The knowledge in Persian and Islamic traditional textbooks about pomegranate and its preparations can be used as a guide for further preclinical and mainly clinical studies to discover the therapeutic potential of this valuable plant.

Combat readiness and preventing the consequences of not having access to operational and reliable equipment is very important in the field of maintaining military assets and the loss of valuable assets is a major concern in military organizations. Long-term storage of assets and equipment should be the goal of every military organization to support on the battlefield by providing safe, Fully capable of performing the mission, reliable, and lethal weapon systems. Storage centers should make these weapon systems accessible timely and operantionaly to soldiers to carry out wartime missions and threats. This reduces the total cost of asset maintenance in the long term, and besides that, it increases the life of equipment and maintains them to deal with unforeseen crises. The current research is one of the applied researches in terms of purpose, and library and internet researches in terms of the place of research. In this article, the goal is to identify the destructive factors that endanger the health of equipment and assets, so that the necessary measures can be taken to eliminate or minimize the effect of each, then a model or cycle for long-term storage of military equipment is presented until the steps are taken. Making this process clear that in this article, this process is described with regard to the activities carried out in a storage and reconstruction center for armored equipment and tools.

The CEO's narcissism is one of their important personality traits, which has a significant impact on the firm's behavior and performance. On the other hand, the internal audit unit is one of the important corporate governance mechanisms that can influence the firm's activities and decisions, especially reporting. Based on this, the aim of the current research is to investigate the relationship between the narcissism of CEOs and social responsibility with regard to the moderating role of internal audit. In order to achieve the purpose of the research, the financial information of 163 firms listed on the Tehran Stock Exchange in the period of 2013-2021 and multiple regression method and combined data were used to test the hypotheses. The findings showed that CEO narcissism has a positive and significant effect on corporate social responsibility. Also, it was found that the size and experience of the internal audit unit as the most important characteristics of the internal audit strengthen the positive relationship between CEO narcissism and social responsibility.

Industrialization is the engine of economic growth on the one hand, and on the other hand, it has the greatest effect on the emission of carbon dioxide. According to the economic literature, one of the most important factors in the emission of air pollutants is industrialization and the production structure in the industrial sector. Based on this, the aim of this research is to investigate the effect of industrial concentration on carbon dioxide emissions. This research was conducted using the panel data econometric model for 30 provinces during the period of 2010-2017. Investigating the industrial concentration index shows that the highest value is related to Bushehr province with 0.66 and the lowest value is related to Qazvin province with 0.018. In addition, at the country level, this index has increased from 0.110 in 2010 to 0.114 in 2017. The results of the model estimation show that industrial concentration, energy intensity, population and GDP have a positive and significant effect on carbon dioxide emissions. According to the research results, diversification of industrial activities in Iran's provinces is recommended based on regional advantage and the use of new production technologies to reduce energy intensity and thus reduce the emission of pollutants.

This study examines the principles and criteria that lead to the adoption of a city - a case study: Sahebgharraniyeh Tehran district - is underway. The NLAS method has been used as the main research method and indicator in this research. In this research, we tried to evaluate the methodology of the NLAS method in Sahebgharriyeh neighborhood using the method of analysis of the hierarchical method of analysis of the NLAS method and to analyze the status of living in Sahebgharrani neighborhood based on the received responses and their analysis. Detailed analyzes based on factor analysis and hierarchical analysis method show that Sahebqaranieh's habitat status is based on three indicators of facilities and services, local economy dynamics and visual landscape situation and environmental pollution and its related components. After summing up Related items and calculation of general indices indicate that the local economy's dynamics indices with a mean of 0.96 and T-value of 968 / resulted in decreasing the viability of Sahebqaraniye neighborhood. But with 95 percent confidence, Sahebgharriyeh neighborhood can be considered as individual and social security indexes, identity and sense of place belonging, facilities and services needed, and the status of the visual landscape and the environmental pollution of the habitat.

Today, most organizations require strategic planning to increase their capabilities, long-term growth and long-term survival, and reduce the risk of their operations. After formulating strategies, it is important to determine the priority of using strategies, which can be used with multi-indicator decision-making models. One of the actions that increases the impact of strategic planning is to prioritize the use of strategies. Multiple criteria decision-making models are used in a variety of contexts such as risk assessment, supply chain management, strategic planning, production environments, raw material selection, weapon systems assessment, and so on. The main purpose of this paper is to compare the results of the QSPM matrix and the SAW and TOPSIS techniques to prioritize the strategies for theSharq Sazeh Kavir company. The population includes board of directors and Sharq Sazeh Kavir Company employees, CEOs of construction and contracting company of Yazd and civil engineering faculty of Yazd University, Managers and Deputy Director- General of Roads and Urban Development of Yazd province. Data needed for this study is extracted from available expert opinions. To carry out this research, strategic planning for the East Structural Company was initially carried out and the strategy was determined by the SWOT matrix. Then defensive strategies recognized suitable for Sharq Sazeh Kavir by using SPACE matrix and then these strategies were ranked by using QSPM Matrix. In the next sectionall identified strategies were ranked using SAW and TOPSIS techniques. Comparing the results of the QSPM matrix and the SAW and TOPSIS technique, shows the similarity of all three methods in ranking the defensive strategies, as well as the difference between SAW and TOPSIS techniques in ranking all strategies.

The purpose of this study was to investigate the effect of dynamic assessment (DA) on grammar development of a beginner foreign language learner whose L1 was Persian. For this purpose, two versions of Oxford Placement Test of Grammar were used: One as the pre and posttests and the other for teaching grammar through interactionist DA. At first, the participant was pretested to assess her knowledge of grammar before the treatment. During the study, interactionist DA was used to provide mediation to the learner depending on her needs. A posttest was conducted two days after the last session to observe the immediate effect of DA. Four weeks later the same test was also administered to observe the delayed effect of the treatment. Item-by-item analysis of the questions showed that DA was effective both in terms of its immediate and delayed effect. The microgenetic analysis revealed useful information about the potential of the learner which was not achievable in nondynamic assessment.

Flexible roll forming is a modern process to produce products with variable cross section that can be used in construction and automotive industries. The portion which connects the slim section to the wide one is called transition zone. In this paper, effect of different bend curves on the web warping has been studied in the transition zone. Considering the geometrical boundary conditions of the transition zone, five different curves including circular, quadratic, cubic, quartic, and quintic curves were studied numerically and experimentally. According to the finite element results, longitudinal strains on profile edge which are less than the desirable strain increase the web warping defect. Product with circular bend curve showed the maximum amount of web warping while the quartic bend curve led to the lowest web warping. In order to verify the finite element analysis, the longitudinal edge strain and the web warping were measured in products with Circular bend curve experimentally. A good agreement between the experimental and finite element results confirmed the accuracy of the finite element model.

Financial derivatives are new instruments through which hedging, investment and arbitrage are done in a modern economy. Although the word 'derivative' primarily reminds us of options and futures, the major focus of the equity derivatives industry worldwide is on index derivatives. Launching index options and index futures in Tehran Stock Exchange, not only increases financial market depth and financial instrument variety, but also provides investors with instruments to hedge their portfolios and helps foreign investor attractions. Also, these financial instruments enhance the information about future prices and thus help market participants to improve their planning for future. However, there is no Sharia compliant solution for index derivatives yet. This paper introduces stock portfolio futures and options. At the beginning of the contract, this portfolio and its combination are clear and physically deliverable. So, stock portfolio futures is a financial contract obligating the buyer to purchase the underlying portfolio of stocks at a predetermined future date and price and the seller to sell this portfolio. Besides, stock portfolio options are a privilege sold by one party to another, that gives the buyer the right, but not the obligation, to buy (call) or sell (put) a portfolio of stocks at an agreed-upon price within a certain period or on a specific date. The described portfolio is so designed to track the underlying index; thus, all functions of index derivatives may be achieved by launching stock portfolio futures and options.

Digital shearography is an optical method based on LASER interferometry can be used to determine the displacement gradients of surface of materials. This approach can be used as a tool for non-destructive testing. In this research¡ a method based on digital shearography is provided to estimate the depth and length of sub-surface cracks in glass-epoxy composite plates. Hence¡ the digital shearography of the studied specimen was simulated by Abaqus finite element software and a secondary program written in Matlab; A shearography setup established in order to verify the simulation. Comparing results of simulations to experiments confirmed the accuracy of simulations. Then¡ by design of experiment method¡ shearography of studied specimen with different crack geometry and testing load was simulated and number and density of fringes were extracted in each test. The equations to estimate the depth and length of crack were provided by curve fitting of obtained data. Validation of provided equations with experimental results shows acceptable accuracy of the equations and algorithm used to estimate the depth and length of cracks in composite plates.

Flexible roll forming is a modern process for producing profiles with changing cross section. One of the important defects in this process is the web warping of product that causes failure to obtain dimensional and geometrical tolerances. In this paper، mechanism of web warping occurrence was investigated by finite element simulation in ABAQUS/CAE software. Results of simulation indicated that inadequate longitudinal strain in the edge of profile’s flange in transition zone is the reason of profile’s web warping. Furthermore، the effect of geometric parameters of product such as flange length، bend angle، radius of transition zone and thickness on the web warping were determined. Analysis of variance showed flange length and bend angle are recognized as the most effective factors on warping of profiles with specific thickness. An equation for prediction of warping was proposed in terms of geometrical parameters of product. In order to verify the finite element model، the longitudinal strain of deformed strip edge was obtained from simulations and compared with the experimental results of other researchers. A good agreement between them confirmed the accuracy of the finite element model.

To study general and specific combining ability of some rice varieties for grain physical properties and milling quality، a diallel design with five parents (Hashemi، Vandana، Kadous، Shahpasand and IR36) was used. Parents and their F1 progenies (25 genotypes) were grown in a randomized complete blocks design with three replications in the Research Field of Rice Research Institute of Iran (RRII)، Rasht، Iran، during 2012، and nine different characteristics were recorded. Analysis of variance showed that there were significant differences among genotypes and also general and specific combining ability for all of studied traits، showing the role of additive and non-additive gene effects. Furthermore، the effects of reverse crosses for all studied traits except، degree of grains whiteness، were significant which indicated the role of maternal effects. The significance of MSGCA/MSSCA ratio، Baker ratio (genetic ratio) near to one and high narrow-sense heritability for physical characteristics showed that the additive gene effects controlling these traits were important than the non-additive gene effects، while non-significance of MSGCA/MSSCA ratio، Baker ratio (genetic ratio) less than one and low heritability for milling characteristics showed the role of non-additive gene effects. Results from graphical analysis based on Hayman method showed that all physical characteristics related to grain quality were controlled by partial dominance effect، while all milling properties were controlled by complete dominance to over dominance gene effect. The results of this research showed that the selection of elite progenies is suitable method to improve the physical characteristics in studied population، while hybrid production method will be suitable to improve milling quality in this population.

Forming limit diagram (FLD) shows the formability of metal sheets under different loading conditions before that necking is taken place. In this paper, the application of plastic instability criterion for prediction of necking and also FLD has been investigated. Using Balart’s anisotropic yield function and plastic instability criterion in different strain ratios, limit strains have been calculated, and then the limit strains have been converted to limit stresses. To verify the analytical results, a free bulge setup with the ability of applying the axial feeding has been fabricated. Tubes have been undergone different loading paths and different plane strain conditions have been induced to obtain FLD. FLDs which have been obtained using plastic instability criterion have been compared with experimental results. The results show that swift instability criterion for tubes have the best prediction of FLD in tube hydroforming process.