---

---

Mystically language is one of the most important tools for expressing the mystical meanings. The language which the contemporary arab poets have well benefited from it. Abdol- Suboor is one of those poets who has met with the great heritage of Iranian Sufism. According to the poet, Attar’s and Rumi's works constitute part of his poetry. His ode “Remembrance of suffi bishr al hafi”, has been affected by the (Manteq at-tayr) of Attār, which is the story of allegorical and symbolic move toward self-perfection. He uses the mask method in this ode, so that, the ode is in motion, in an existential space towards the “pantheism” and “perfect man” and, finally, the form remains open without being finished. This research has used the method of comparative literature. By reviewing the similarities of the two works, it indicates that the ode “Remembrance of suffi Bishr al Hafi” has used the story theme of travel truth in the Attār's (Manteq at-tayr)

---

The Xanthomonas citri pv. citri (Xcc) is causal agent of bacterial citrus canker which is major disease of citrus throughout the world. The pthA bacterial effector protein is presented within the infected plants and indispensable of canker. The scFv antibodies are valuable tools for diagnosis and suppression of pathogens within plants. The present article describes developing and characterization of specific recombinant monoclonal scFv antibodies against pthA effector protein. For this aim, the gene encoding pthA protein was heterologously expressed in Escherichia coli and used for screening of Tomlinson phage display antibody library to pinpoint specific single chain variable fragment (scFv). In each round of panning, the affinity of phage towards pthA was checked by enzyme linked immunosorbent assay (ELISA). The data was indicative of about 50% of the monoclonal phages to be reactive strongly against pthA protein. Among the positive clones, 5 samples (A12, B8, C1, H8 and G8) were capable of detecting Xcc-infected plant samples and recombinant pthA protein. Restriction fragment length polymorphism showed similar banding pattern for all 5 scFvs as renamed to pthA-scFG8. HB2151 E. coli cells were infected by the phage bearing pthA-scFG8, and the expression of the peptide was induced by IPTG to produce a 30 kDa recombinant molecule. I-TASSER was used for homology modeling of both scFv and pthA and docking was carried out by Hex program. The latter demonstrated binding energy of −784 kcal/mol in scFv-pthA. 

---

Fish is one of the most important sources of protein for human nutrition and health. Therefore, the monitoring of heavy metals accumulation in commercial fish is always important. In the present study, the accumulation of heavy metals (copper and lead) in muscle tissue and their potential hazards for consumers in three species of high-consumption fish in the south of the country(BandarAbas), namely black-spot snapper (Lutjanus ehrenbergi), javelin grunter (Pomdasys Kaakan) and Indian halibut (Psettodes erumei) was examined. The average concentrations (µg/g dry weight) of copper snapper, grunter and halibut were 0.078±0.017, 0.136±0.025, and 0.127±0.013, respectively, while the accumulation of lead in them was 0.079±0.018, 0.090±023, and 0.107±0.031, respectively. The highest daily intake (µg/ kg body weight/ day) of copper was equal to 0.023 and due to consumption of grunter, while the highest daily intake of lead was obtained due to consumption of halibut and equal to 0.018. The daily and weekly intake of both metals and all three fish species was less than the EPA reference dose and tolerable intake (TDI) values provided by the FAO / WHO Joint Commission. The risk level of target hazard quotient (THQ) calculated for both metals was significantly lower than 1. The results showed that the urban communities of Hormozgan province with the calculated consumption are not exposed to any risk due to the accumulation of heavy metals studied in this study.
 

---

In this study, a comprehensive assessment of the occurrence and spatial distribution of heavy metals including Nickel, Lead, Zinc, Copper, Cadmium and Chromium, as well as, TPHs in the surface sediments of the coastal areas and far from the coast of the Persian Gulf in Bushehr and Khuzestan provinces were performed to identify the possible sources of sediment contamination and determining the degree of pollution. Eight pollution indices were used to evaluate the quality of sediments in terms of heavy metal and TPH pollution. The investigated areas could be distinguished by a significant degree of heavy metal pollution of Nickel, Cadmium and Zinc. High concentrations of Nickel and Zinc were observed in stations around Nakhiloo, Bushehr. The comparison of average pollution indices between regions showed that both Bushehr and Khuzestan provinces, respectively, with the average of contamination degree (CD) (20.25 and 22.11), modified contamination degree (MCD) (3.38 and 3.69), pollution load index (PLI) (31.17 and 57.57), potential ecological risk index (PERI) (353.54 and 349.39) have a significant degree and risk of Nickel and Cadmium pollution, especially in Nakhiloo area, Bushehr. Investigating the spatial fluctuations of the concentration of TPHs in two provinces showed an increasing trend from Bushehr to Khuzestan. However, areas were located in no pollution or low pollution zonation and were safe from the adverse biological effects of TPHs. Comprehensive and impressive strategies to control and reduce these pollutions, especially in polluted areas, should be considered, so that the sources of these pollutions be managed.
 

---

 

---

---

In the nonlinear elastoplastic finite element analysis, the stresses must be updated at each Gauss point of the elements in each iteration of each load increment by a stress-updating process. The stress-updating process is performed by integrating of the constitutive equations in plasticity. It should be noted that the accuracy of the integrating the constitutive equations highly affects the accuracy of the final results of the structural analysis. In this study, the von-Mises plasticity model along with the isotropic and kinematic hardening mechanisms is considered in the small strain realm. The constitutive equations are converted to a nonlinear equation system in an augmented stress space. The aforementioned nonlinear equation system is solved by an semi implicit technique. The precision of the solution is depended to the radius of the yield surface which is used in the process of the solution. Therefore, the relations are derived so that one can pick up the yield surface radius from each arbitrary part of plasticity step. Finally, to determine the best time of loading step for calculating the radius of the yield surface, the a broad range of numerical tests is performed.

---

Energy and mass transfer investigations in thermal processing of fruits serve as a breakthrough in the design and scale up of drying systems. Diffusivity characteristics and specific energy consumption for drying of fig fruit in a laboratory scale microwave dryer were assessed. Several intervals for microwave power intensity including 0.5, 1, 1.5, 2, and 2.5 W g^-1, and 6 levels of power on-off stated as pulsing ratios of 1.5, 2, 2.5, 3, 3.5, and 4 were employed. The results showed that the drying rate decreased with the pulsing ratio and increased with microwave power intensity. Effective moisture diffusivity as an indicator of mass transfer was obtained to be higher at elevated microwave power intensities. Also, increased pulsing ratios had a reducing effect on moisture diffusivity. Using 2^nd law of Fick, moisture diffusivity was calculated to be varying from 5.93E-10 to 1.42E-08 m² s^-1 depending on the experimental conditions. Furthermore, the activation energy of fig fruit was obtained to be in the range of 60.094 to 92.189 kJ mol^-1. Specific energy consumption variations showed a positive correlation with pulsing ratio and drying time. However, due to the dependence of energy consumption on MW power intensity, a multiple regression analysis with R² of 0.968 was developed.

---

Milk is considered to be a perfect food for humans, but combined cheating and lack of it’s fast  recognition by existing machines, causes the dairy industry has been challenged. In this regard,  alternating current electrical conductivity is used to detect some of the properties of milk, but direct current is not permitted due to disadvantages such as electrode polarization and milk hydrolysis. In this research, a device have be made that work based on the electrical resistance of the milk. In this device, by passing a direct current through the milk, The suspended ionic material is absorbed at the electrode surface and causes the dilution of the milk. The value of the electrode current density at resistances of 1.48, 1.85, 2.5, 3.7 and 7.4 k𝛀 with two aluminum and steel electrodes at temperatures of 17.2, 20.7 and 23.7 degrees Celsius, at intervals The electrodes 1, 2 and 3 cm were measured in volumes of 15, 30 and 45 cc for two minutes, and the effective factors in designing the device to reduce the effects of double  disadvantages were optimized geometrically. The results show that the device with the steel electrode and cell coefficient of 0.33 cm^-1 can optimally measure the quality of 45 cc milk at 25 ^oc. the current density of the steel electrode is lower than that of the aluminum electrode and increases with decreasing circuit control resistance, and for reducing the polarization of the electrodes and the rate of hydrolysis, with a resistance of 3.2 k𝛀, and a constant cell coefficient with a minimum oscillation, it’s optimum value was obtained 1.5 mA And the temperature, volume of the milk and the distance of the electrodes did not affect it’s value.

---

The dynamic response of the double-layer girds (a kind of space trusses) can be determined by means of the software based on the finite element method. However, it is always needed the approximate techniques by which one can easily and quickly obtain the suitable estimation of the dynamic behavior of the structures. This need may be caused by: 1- providing an appropriate estimation in the first stage of designing the members, and 2- verification of the results of the computer programs.
               In this study, an approximate method is suggested for seismic analyses of the double-layer grids with the spatial square on square layout, the square or rectangular plan and simple supports around the structure. The method is on the basis of the simulation of double-layer grid to the equivalent beam and plate. Here, the smallest circular frequency of the vertical vibration is computed by using Rayleigh’s method. In addition, the seismic forces caused by the vertical acceleration of the earthquake are evaluated by employing the equations of the dynamics of the structures and estimating the shape function of the first mode of the vertical vibration. There are the deflections of the structural nodes in the achieved equation for estimating the circular frequency; therefore, an initial estimation for the sizes of the members of the double-layer gird is required. In fact, since the weight of the structure should be considered in evaluating the applied loads, an approximate design must be performed. For this purpose, a step by step technique is suggested based on the AISC Specification to initially design the structure. In addition, the assessment of the deflection of the double-layer girds is done based on the uniformly distributed loads and non-uniformly distributed loads.
            Finally, to assess the suggested approximate method, 21 models of the double-layer grids with the spatial square on square layout are considered. These models have the horizontal and diagonal (web) members with the equal lengths. The supports of the double-layer girds are simple. The bays have 30 to 60 m with the step of 5 m and the number of 10, 12 and 14 horizontal members along the span. In order to analyze and design the models, the members are considered to be connected to each other as bending free connections. The spectrum analysis is done to take into account the seismic effects. Also, SAP2000 is used to analyze and design the models in question, and the results achieved by this software are considered as exact outcomes. On the other hand, the models are analyze by the suggested approximate method and the obtained results including frequencies, seismic vertical forces of the members of the models are compared with the exact outcomes in diagrams. The findings show that the proposed method can be evaluated the dynamic properties of the double-layer girds with a suitable precision which prove the robustness of the derived scheme. In fact, the maximum error in estimating the frequency is about 15%, and 12% if it is considered the variation of the weight of the double-layer girds and if it is not considered, respectively. Furthermore, the comparison of the achieved forces of the members between the exact and approximate results is revealed that the maximum error is about 11%, which is a good estimation for an approximate method.