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In this research, the way for improve performance and also increase the discharge coefficient of curvilinear piano-key weir in plan was investigated. For this purpose, changes in the geometric shape of this type of weir have been created and the results of these changes have been investigated using the FLOW3D software. One of these changes is the deformation of the weir crown. Therefore three weir models with rectangular, triangular and elliptical crowns were designed. Results showed that weir with triangular crown had up to 60% higher discharge coefficient than the elliptical-crown weir and up to 65% more than the rectangular-crown weir. In the second part of this research, effect of existence or absence, as well as the geometric shape of the bundle, on the performance of these types of weirs was investigated. For this purpose, three weir models with cubic rectangular, half-cylindrical and prism bundles were designed and compared with a weir without bundle. The results showed that in low flow rates, the bundle improved the hydraulic performance of the weir and also among the bundles, half-cylindrical bundle had better performance than other bundles, but by increasing pass discharge, the effect of bundle operation decreased, and gradually the discharge coefficient of weir with bundle and weir without bundle approached. Finally, the impact of parapet wall on these types of weirs operation was investigated. For this purpose, a 1.3 cm high parapet wall was added to the weir crown. Results showed that this action increased the discharge coefficient by about 7%. Generally, in high flow heads, the improvement factors do not have a significant effect on weir performance.

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Teaching literature to international students can be challenging. The teaching of literature has remained traditional. Studies reveal that most of the language lecturers and teachers teach literature based on their personal experience. This study attempts to provide answer to this question “what is the most efficient model for the instruction of Persian literature to non-Iranian Persian language learners?” In this investigation, after reviewing the relevant literature, the researcher developed and piloted a questionnaire. The questionnaire was randomly distributed among 52 Persian language teachers and experts to probe their perceptions concerning the most productive model for teaching Persian literature. The data analysis showed that the participants considered the integrated approach, personal growth, cultural, and linguistic models as the first, second, third, and forth models, respectively, appropriate in the teaching of both Persian poetry and prose despite with statistically significant difference. The results further indicated that the teachers did not show significant difference concerning the application of models in teaching Persian poetry and prose. The findings of this investigation might be used to upgrade the quality of teaching Persian literature to non-Iranian Persian language learners. The results could be promising in the design and development of useful educational materials in the teaching of Persian literature.
 

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As the demand for new protein sources increases, research is needed to extract and develop protein isolates with desirable functional properties. Sesame protein can be used as a new plant protein source due to its high amino acid content. In this study, the effect of sodium chloride salt concentration (0, 18 and 22% w / v) and drying temperature (25, 45 and 180 °C) as two important parameters affecting the functional properties of protein isolates extracted from sesame were investigated. Protein solubility tests at pH 4, 5, 7, 9 and 11, foam stability and emulsion stability at pH 11 and water holding capacity (WHC) and oil holding capacity (OHC) were performed. The lowest protein solubility was observed at pH 5 and with increasing pH, protein solubility increased. With increasing temperature from 45 to 180 °C at constant salt concentration, protein solubility and foam and emulsion stability increased and WHC and OHC decreased. An increasing in salt concentration from 18 to 22 % at constant temperature caused to increase in protein solubility and decrease in WHC and OHC. Foam and emulsion stability was lowest at 18% of salt concentration. In general, drying temperature of 45 degrees Celsius and salt concentration of 18% for preparation of protein isolate with maximum water and oil holding capacity and drying temperature of 180 ^°C and salt concentration of 22% for production of sesame protein isolate with maximum solubility, Emulsion stability and foam stability are recommended.
 

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Following the increasing resistance of bacteria to antibiotics and increasing public awareness of the relationship between food and human health, several studies have been conducted to find potential antimicrobial agents. D-limonene (L) is a liquid and a colorless bioactive compound of the terpene family that has high antioxidant and antimicrobial activity. Due to its low solubility, high volatility, and sensitivity to light, its applications in the food and pharmaceutical industries are limited. In this study, L was incorporated in β-cyclodextrin nanosponges (CD-NS) to overcome these limitations. For the preparation of  L-NS, different molar ratios of β-CD and Diphenyl carbonate (DPC) as cross-linker (1:4, 1:6, and 1:8 of CD: DPC) and different ratios (w/w) of L: NS (1:2, 1:4, and 1:6) were prepared. The results showed the solubility of L increased after encapsulation in the nanosponges. Encapsulated L showed higher antibacterial activity compared to free L and minimum inhibitory concentration (MIC) and minimum bactericidal concentration of  L  decreased 324 and 648 times after encapsulation. Our results propose that CD-NS is a suitable carrier for hydrophobic and sensitive compounds and L-NS can be used as a potential preservative with enhanced antibacterial activity in food applications. It is important to note that the results of this study were obtained in vitro and further studies related to their toxicity (in vivo) are needed for confirmation of their application in the era of nutrition and genomics.

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In this study, an example of the results obtained from the combination of the vibration monitoring program and the root cause analysis approach for the electromotor roller element bearings of the cement factory’s mill fan has been presented and examined. By registering the inspectors' reports on the release of abnormal sound from the bearings, the vibration data recorded in the monitoring program were equipped and, by carefully checking the vibration trends of the machine, sensible increase in the bearing condition index (BC) have seen. By matching the fault frequency with the frequency elements of the roller bearing, predicted is failure in the bearing' cage, which will be verified by visited and reviewed. The detect of the root cause of the failure is on the agenda for this purpose, paid investigated the causes of failure in the bearings and due to the inspection history, finally specified the use of the bearing is not suitable due to the velocity factor, as well as the factors of the lubrication interval and the amount of lubrication charged can be explained by the reasons for failure in the machine.

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In today's competitive world where change is one of the most important features is necessary for the preservation and conservation organizations exist Looking agility to be able in the shortest time and at minimal cost to improve the quality and innovation in their products and services. This paper aims to examine the impact of organizational culture on organizational agility capabilities of the armed forces organizations with descriptive - correlation to the written survey And tries to correlate the five hypothesis "group decision-making culture", "culture of learning", "Culture power sharing", "culture of participation" and "risk tolerance" on "organizational agility" to the test. To test these hypotheses, a researcher-made questionnaire consisting of 48 questions using the Cronbach's alpha coefficient using the software SPSS, 0/994, respectively. A survey by Morgan estimated 140 people who responded to the questionnaire. The results of structural equation is as follows. Between the "culture of group decision-making", "learning culture", "culture of power sharing", "culture of participation", "risk tolerance" and "organizational agility" There is a significant positive relationship.

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Growing the importance of environmental issue have led numerous companies to regard green marketing and purchasing behavior concepts as the main source of their strategic shift and the subsequent growing research, increasing the dispersion and explosion of information in this field, therefore the essence of a combination of research out in the matter to the systematic way and facing the researchers. This research using meta- analysis and software comprehensive meta- analysis (CMA) to analyze the research conducted between 1997 and 2015 in the field of green purchasing behavior. After reviewing the research conducted, 22 internal and external study, 39 variables and hypothesis were identified. Used to funnel charts and statistical methods Rosenthal and Orwin way to check the validity of the findings and publication bias. The results of the meta- analysis shows that Environmental concern, Social Influences, Perceived effectiveness, Perceived environmental responsibility, Concern for self- image in environmental protection, Environmental Attitude, Perceived seriousness of environmental problems and Green purchase intention most effective and different studies have been green purchase behavior.

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Painted rocks may be considered the oldest manifestation of art in human society. The history of this art is estimated to be more than 30 thousand years. This art has also a long history in Iran.
This article introduces one of these rock art sites i.e. Ghalat Niloo which is located in Kazeroon County, south-east of Ghalat Niloo village. The purpose of this study is to identify and determine the location, the function of concepts, the history, classification and relationship of these designs with similar samples available from other areas. These designs have been engraved on the walls of the caves and include subjects such as hunting, human on horseback with a bow in hand, animal images mostly goats and in one case a dog. They probably date back to the 1^st Millennium BC.

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The human need to energy is increasing constantly and fossil energy sources is decreasing. The indiscriminate use of fossil fuels pollute the environment and threaten life on Earth. Today in addition to modifying consumption, use of renewable energy is one of the ways to solve the energy crisis. The Solar energy is one of the renewable energies. In this study the application of GIS in the Assessment of using solar energy to supply lighting systems of Highway Zanjan - Tabriz by function of Solar Analyst has been studied. In this article, the DEM ASTER satellite’s data of the study area in the Arc GIS software were used to calculate the solar radiation reaching the Earth's surface for six months (May and October).The results of this investigation showed that the study area due to variation of topography has different surface radiation and confirmed the possibility of using solar photovoltaic systems to supply lighting systems of Highway Zanjan - Tabriz. In the matter of the most important factor which affects the received radiation to surface, function of Solar Analyst has the most correlation with the height and the lowest correlation with the slope aspect.  

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Interaction of companies with customers in the form of customer relationship management has changed significantly. Identifying characteristics of different customers and allocating resources to them according to their value to the firm has become one of the main concerns in customer relationship management. The purpose of this paper is to provide an appropriate model for customer segmentation based on some of the most important financial and demographics characteristics influencing factors of customer lifetime value (CLV). The process proposed in this study was performed in Saman insurance company. After determining RFM model indices, which include date, frequency and monetary of purchase, AHP method used for weighting them among 180000 customers. The optimal number of clusters based on the silhouette and impact of RFM indicators was done by using Two-step algorithm and then customers classified through K-Means clustering algorithm. Results provided a platform to analyze the characteristics of customers in three main sections. Also, by prioritizing clusters based on the RFM indices, valuable customers were identified. Finally, some suggestions were presented to the company to improve its customer relationship management system.

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The Igd -ul-ula' is one of the most special texts of Persian prose, which is full of Persian and Arabic words, idioms, poems and proverbs. These features have led to the need for a comprehensive description of the Igd -ul-ula'. Maryam Iranmanesh has described and analyzed this book. This description has major drawbacks in several cases. In this article, we have divided these problems into six groups: lexical problems in Persian and Arabic, grammatical errors, syntactic errors, ambiguities and inadequacies in translating Arabic poems, and not mentioning the speakers of the poems. We have tried to show how the commentator made a mistake in each of these cases and what the source of this error was by referring to Davin poets, reference books and authoritative Persian and Arabic dictionaries. Explanatory lexical errors are due to not referring to valid Persian and Arabic dictionaries and her morphological and syntactic problems are often the result of not recognizing the syntactic role of words and phrases, lack of recognition of time, roots and form of verbs and inadequacies and ambiguity due to not referring to the poet's divan, Are authentic reference books and dictionaries. In each case, after mentioning the forms of the text, we have provided the explanatory explanations, and after reviewing these explanations and showing its errors and defects, we have provided the description and explanation of our proposal from the text. We have tried to make our proposed explanations free of these slips and to be deeper and more accurate.

 

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Although Ferdowsi's Shahnameh contains many narrations of Iranian myths, there are myths, that Ferdowsi did not address for some reason. One of the most controversial myths that are not present in the Shahnameh is the myth of Arash Kamangir. Some scholars believe that Ferdowsi did not intentionally refer to this myth, and others believe that this myth was not in Ferdowsi's sources. However, this research tries to look at this issue from the perspective of "paradigm analysis" And show that in the Shahnameh paradigm, the natural and obvious act is choosing life over death and the act of consciously and intentionally choosing death has never occurred by the heroes. In other words, the choice of deliberate death or martyrdom is an issue that is outside the Shahnameh paradigm. And Arash's myth could not have a place in Ferdowsi's Shahnameh because it is a story in praise of martyrdom. This is the result of comparing the paradigms that govern the Shahnameh and the myth of Arash, while the deliberate choice of death is absent in the paradigm of the Shahnameh, it is emphasized and praised in the paradigm of the myth of Arash. Hence, the paradigmatic contradiction between the two texts has prevented the presence of such a myth in the Shahnameh.

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The aim of this study was to produce dry aloe­ vera slice by osmotic-hot air drying method and to investigate the effects of this method on texture, color, shrinkage, water re-absorption ability and water activity. The studied variables included precooking time (5, 7 and 10 minutes), drying time (8, 10 and 12 hours) and drying temperature (40, 50 and 60 ° C) using the response surface method in the form of a central composite design. It was examined with six replications at the central point. The results showed that increasing the temperature to 50°C increased the hardness of the texture, but further increasing the temperature reduced the hardness. The rate of rehydration was affected by drying temperature. With increasing temperature, the rate of rehydration in the samples increased. However, changing the pre-cooking and drying process time had no effect on the amount of this parameter. None of the studied independent variables had a significant effect on water activity. Optimization results showed that pre-cooking for 10 minutes and drying at 53.93°C for 8 hours will produce products with the best characteristics.
 

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The main purpose of this study was to investigate the mediating effect of Organizational Learning (OL) on the relationship between Entrepreneurial Orientation (EO) and Organizational Performance (OP). The target population of the study comprised of all experts of Agriculture Jihad Organization (AJO) of West Azerbaijan Province in the northwest of Iran (N= 1004). Two hundred and forty subjects were selected using a stratified random sampling method based on Bartlett et al. (2001) Table. A structured questionnaire was used to obtain data and Structural Equation Modeling (SEM) multivariate technique was used to analyze the data. The results showed that EO had a statistically significant positive effect on OP (P-value= 0.001, β= 0.660) and explained about 44% of its variances. Moreover, the variable OL mediated the relationship between EO and OP (P-value= 0.001, β= 0.423). After inclusion of OL as mediating variable in the model, the predictive power of the model increased by 17%. Based on the findings, it can be concluded that it is necessary for AJO to strengthen OL and its components in order to maximize the effect of EO on OP.
 

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Three different sources of Iranian wild almond (Amygdalus scoparia from Beyza, Fars Province, A. scoparia from Borazjan, Bushehr Province, and A. hausknechtii from Firouzabad, Fars Province) were evaluated for their amino acid compositions and protein nutritive quality attributes. Hydrophobic and acidic amino acids were the most abundant amino acids found in the seed protein. When compared to the (FAO/WHO)-recommended essential amino acid pattern for an adult, lysine, sulphur amino acids (methionine+cysteine) and histidine are considered the first, the second, and the third limiting amino acids, respectively, in the protein obtained from the wild almond sources. Also, the protein and energy values of the studied wild almonds were lower than those of the domestic almond. Wild almonds were also found to be rich sources of minerals; particularly calcium, zinc, and phosphorous. Wild almonds also had higher levels of phenolic compounds and antioxidant activities than those of the domestic almond. Furthermore, amygdalin, a cyanogenic glycoside mainly found in the fruit and seeds of Rosacea family, was obtained at significantly higher levels in the wild species (6.5-7.2%, wet basis) when compared to that in the studied domestic almond (0.9%, w/w). Overall, the results of this study show that there is a great potential for the application of wild almonds in the food industry.