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Open Access Article
1 - Effect of collisions, ionisation and non-extensivity on sheath formation in an electronegative warm plasma under electron emission from the wall
Yetendra Jha Mayank Kumar Hitendra K. Malik -
Open Access Article
2 - Behaviour of sheath in electronegative warm plasma
Rajat Dhawan Hitendra K. Malik -
Open Access Article
3 - Structural and morphological properties of ITO thin films grown by magnetron sputtering
Z. Ghorannevis E. Akbarnejad M. Ghoranneviss -
Open Access Article
4 - Study of effect of olive oil on re-epithelialization of epithelial tissue in excision wound healing model in rats
Abooei Mehrizi, M., Eidi A., Mortazavi, P. .Olive oil has been used for medical purposes. It has beneficial effects on cardiovascular and metabolic diseases, inflammatory and autoimmune diseases. The objective of this study was to find out the efficacy of topical administration of olive oil on dermal wound healin MoreOlive oil has been used for medical purposes. It has beneficial effects on cardiovascular and metabolic diseases, inflammatory and autoimmune diseases. The objective of this study was to find out the efficacy of topical administration of olive oil on dermal wound healing in rats. After creating full-thickness skin wounds on the back of 60 male Wistar rats, rats randomly divided into six groups, as control, sham, treatment and standard. Control group was intact. Sham group received eucerin as vehicle. Treated group received the olive oil at doses 2, 5 and 10%, dissolved in eucerin. Standard group were treated with phenytoin ointment 1%. Wound healing rats were calculated on days 3, 7, 11, 14, 18 and 21 post-wounding and the wound tissues were harvested at 3, 7, 14 and 21 days for histological studies. All of rats were sacrificed, and the skin around incision area was dissected and stained by Masson’s trichrome methods for tissue analysis. The results indicated a significant decrease in the diameter of wound in the treated and standard groups comparing to the control groups. A significant increase in the rate of re-epithelialization was observed at 14 days in the treated and standard groups compared to the control group. The results demonstrate that olive oil significantly accelerates cutaneous wound healing and its effect may be due to the increased re-epithelialization. It was concluded that it can be considered as a therapeutic agent for wound healing Manuscript profile -
Open Access Article
5 - Histopathological evaluation of cyclosporin gel on full thickness skin transplantation (Allograft) in the rat
Mofidi, A., Jahandideh, A., Hesaraki, S. .Nowadays, it is used to skin graft in spread. Cyclosporine is one of the most use and effective immunosuppressive drugs that it has side effect and toxicities on CNS, kidney and liver. In this research is tried to investigation of 0.5% cyclosporine gel effectiveness on MoreNowadays, it is used to skin graft in spread. Cyclosporine is one of the most use and effective immunosuppressive drugs that it has side effect and toxicities on CNS, kidney and liver. In this research is tried to investigation of 0.5% cyclosporine gel effectiveness on allograft full thickness skin rejection in rat. In this experimental study is used to 45 wistar male adult rats as allograft recipient and 15 spiral hole (SD) male adult rats as allograft donor with age range between 14 to 15 week and mean weight: 200±10 gr. After general anesthesia, circles with 1.5 cm diameter containing epidermal and dermal layers had separated from SD donor rats with scalpel cutting and then these parts were grafted to shoulder center (midline) of wistar recipient rats. After transplantation, rats randomly divided to 3 groups with 15 rat (3groups of 5 each) (control, test and 0.5% cyclosporine gel) and then each of them was divided to 3 group with 5 rat (sampling groups in days: 3, 7 and 15). Any treatment is applied in control group. 10 mg/kg IP cyclosporine injected to test group, and in third group, 0.5% cyclosporine gel was applied in the graft place, daily. Then on days: 3, 7 and 15 after graft, it was done sampling from the graft location and applied histopathological studies on it. Then, Statistics data analyzed using kruskal wallis test with SPSS software. Investigations confirmed that cyclosporine gel using caused to significant reduce of vasculitis, folliculitis, dermatitis and dermal degeneration on 3 and 7 days after graft in comparison to control group (P<0.05) and single use of cyclosporine gel on day 15 after graft did not cause to skin graft rejection. By attention to this test challenges, cyclosporine gel has significant effects on Acceptance of skin grafts, but its single use did not cause to skin graft rejection. To more effect on skin graft acceptance can use to cyclosporine gel in combination with other immunosuppressive drugs. Manuscript profile -
Open Access Article
6 - The Effect of Thickness and Number of Permeable Obstacles on Density Current Control and Trapping
Alireza Jahangir Kazem Esmaili Mahmoud Faghfour MaghrebiUnderstanding and studying the river flooding, which in most cases is density current, can help to reduce adverse effects of sedimentation. To this end, the creation of obstacles in the bed of stream will be effective. In this paper, the effect of thickness (dimension) MoreUnderstanding and studying the river flooding, which in most cases is density current, can help to reduce adverse effects of sedimentation. To this end, the creation of obstacles in the bed of stream will be effective. In this paper, the effect of thickness (dimension) and the second layer of permeable obstacles on the control and trapping of density current is investigated experimentally. For this purpose, two types of groove and cavity obstacles with grooves and cavity diameters equal to 3 mm and made of plaque glass were used. Density currents were created by adding an insoluble, suspended polymer of expanded polystyrene with a mean diameter of 1.15 mm and a density of 1.155 g / l. The experiments utilized two different concentrations (10 and 20%), five different porosities, four different angles, four different thicknesses and two barrier layers. The results showed that the density current process with 10% porosity of the groove obstacle increased with increasing thickness. The second layer of obstacles have increased the material passage through both groove and cavity obstacles. This increase was recorded in the groove type of 1.96 and the cavity type of 2.34. Investigations showed that the optimal distance of the second obstacle from the first was 2.25 meters. According to the results, under similar conditions, cavity obstacles always perform better than groove ones. Manuscript profile -
Open Access Article
7 - Stagnation-point flow of a viscous fluid towards a stretching surface with variable thickness and thermal radiation
B. C. Prasanna ‎Kumara ‎‎G. K‎. ‎ ‎Ramesh‎ A. J. Chamkha‎ B. J. ‎Gireesha‎‎ -
Open Access Article
8 - Study on Thickness Swelling of Wood Plastic Composites Made From Beech Wood Flour-Polypropylene
Shokooh Etedali Behbood Mohebby Mehdi TajvidiDue to high demands for wood products as lumbers, panels as well as wood products and also regarding deficit of wood sources in the country, attentions are changing to substitute wood products with wood plastic composites made from wood wastes. Therefore, it provides op MoreDue to high demands for wood products as lumbers, panels as well as wood products and also regarding deficit of wood sources in the country, attentions are changing to substitute wood products with wood plastic composites made from wood wastes. Therefore, it provides opportunities to solve environmental aspects of the waste materials as well as use very low cost sources for production. This research work has been concerned to study swelling of wood plastic composites made from different ratios of wood waste manufactured by two techniques of extrusion and hot press modeling. The samples were made based on target density of 1 g/cm3 and dimensions as 35×35×1cm from beech wood flours as wastes and polypropylene with mixing ratios of 40, 50 and 60%. The samples were made with two techniques of extrusion modeling and hot press modeling. Results revealed that any increase of wood particles ratio from 40 to 60% increased the thickness swelling of the wood plastic samples. It was also shown that composites with higher ratios of the wood flours achieved to their maxima of the saturation within a shorter period. Boards molded samples with hot press had lower swelling than that of the extruded molding. Manuscript profile -
Open Access Article
9 - Preparation and Characterization of Aluminum Nitride Thin Films with the Potential Application in Electro-Acoustic Devices
Fatemeh Hajakbari -
Open Access Article
10 - The Effect of Electroplating Time on Microstructural Properties and Hardness of Silver Coating on C10100 Alloy
A. Taherkhani Y. Shajari K. Mirzavand A. Mellatkhah Z. S. Seyedraoufi -
Open Access Article
11 - Environmental Optimization of Building Insulation Thickness in Warm-Dry Regions
E. Anbarzadeh S. M. Ghafoori Yazdi -
Open Access Article
12 - Environmental Optimization of Building Insulation Thickness for Cold Climates using Neural Network Method
E Anbarzadeh T Shahmohammadi -
Open Access Article
13 - Thermo-Elastic and Time-Dependent Creep Evolution Behaviour of Ferritic Steel Rotating Disks using Theta Projection Concept
H. Daghigh V. Daghigh -
Open Access Article
14 - Microstructure and Mechanical Properties of AZ91 Magnesium Cup Processed by a Combined Backward Extrusion and Constrained Ironing Method
M. Khodsetan Ghader Faraji V. Tavakkoli K. Abrinia -
Open Access Article
15 - Fabrication of a Complicated Specimen with Two Point Incremental Forming Process
Mehdi Safari Jalal Joudaki -
Open Access Article
16 - Influences of Blank Holder Force in The Multi-Step Deep Drawing Process of Aluminum Sheets
Sajad Bakhtiari Seyed Jalal Hashemi Amir Hossein Roohi -
Open Access Article
17 - Comparative Study of LS-SVM, RVM and ELM for Modelling of Electro-Discharge Coating Process
Morteza Taheri Nader Mollayi Seyyed Amin Seyyedbarzani Abolfazl Foorginejad Vahide Babaiyan -
Open Access Article
18 - Numerical Analysis of the Effect of External Circumferential Cracks in Transition Thickness Zone of Pressurized Pipes Using XFEM – Elastic-Plastic Behavior
H Salmi Kh EL Had H EL Bhilat A Hachim -
Open Access Article
19 - Tangential Displacement and Shear Stress Distribution in Non-Uniform Rotating Disk under Angular Acceleration by Semi-Exact Methods
S Jafari -
Open Access Article
20 - Nonlinear Investigation of Magnetic Influence on Dynamic Behaviour of Non-Homogeneous Varying Thickness Circular Plates Resting on Elastic Foundations
S.A Salawu G.M Sobamowo O.M Sadiq -
Open Access Article
21 - Elastic Buckling of Moderately Thick Homogeneous Circular Plates of Variable Thickness
S.K Jalali M.H Naei -
Open Access Article
22 - Stress Analysis of Rotating Thick Truncated Conical Shells with Variable Thickness under Mechanical and Thermal Loads
M Jabbari M Zamani Nejad M Ghannad -
Open Access Article
23 - Thermal Stability of Thin Rectangular Plates with Variable Thickness Made of Functionally Graded Materials
M Pouladvand -
Open Access Article
24 - Free Vibration of Thick Isotropic Plates Using Trigonometric Shear Deformation Theory
Y.M Ghugal A.S Sayyad -
Open Access Article
25 - A Power Series Solution for Free Vibration of Variable Thickness Mindlin Circular Plates with Two-Directional Material Heterogeneity and Elastic Foundations
M.M Alipour M Shariyat -
Open Access Article
26 - Evaluation of Buckling and Post Buckling of Variable Thickness Shell Subjected to External Hydrostatic Pressure
A.R Ghasemi M.H Hajmohammad -
Open Access Article
27 - Free Vibration Analysis of Non-Uniform Circular Nanoplate
M Zarei M Ghalami-Choobar G.H Rahimi G.R Faghani -
Open Access Article
28 - Elastic Analysis of Functionally Graded Variable Thickness Rotating Disk by Element Based Material Grading
A.K Thawait L Sondhi Sh Sanyal Sh Bhowmick -
Open Access Article
29 - Evaluation of the Paleocene-Eocene deposits, Jahrum Formation, base on 2-D seismic data, Central Persian Gulf
Naser Abdi Hossain Rahimpour-Bonab Sayyed Reza Moussavi-Harami Iraj Abdollahi Fard Davood Jahani Ali ChehraziThe Persian Gulf is part of an asymmetric foreland basin related to the Zagros Orogen. It has been episodically flooded for much of its history which are reflected in sedimentary successions. The evaluation of this succession from depositional trend view, in central Per MoreThe Persian Gulf is part of an asymmetric foreland basin related to the Zagros Orogen. It has been episodically flooded for much of its history which are reflected in sedimentary successions. The evaluation of this succession from depositional trend view, in central Persian Gulf during Paleocene-Eocene, is the aim of this article. The sedimentary rocks physical characteristics effects on seismic data, gives an appearance to the data, which can be a key factor for their evaluation. The reflectors geometry and terminations have been used for their interpretation. The current study the uses seismic data beside drilling wells data, including cutting description and logs. The study result shows progradation toward northeast, the direction in which the accommodation space is increasing. The sedimentary environments changes to lagoon, platform and basin which affect the deposits. These environments demonstrate suitable condition for carbonates and evaporites precipitation, in Jahrum Formation, which are approved by cutting ription. The sediments extension and its trend show high thickness of Paleocene-Eocene deposits in north west of the study area, where the basin is deeper. In some intervals the thickness of sediments is decreased in deep basin, due to sediment starvation. Manuscript profile -
Open Access Article
30 - Experimental Evaluation of the Effect of Pipe Inclination Angle on Minimum and Maximum Liquid Film Thickness in Two-Phase Flow
Arash Ghafouri Ashkan Ghafouri Abbas kosarineia Alireza Daneh-DezfuliIn this study, the effect of limited inclination angle on two-phase flow in a vertical pipe was investigated, focusing on the formation of liquid film thickness using image recording and processing techniques. To generate annular flow patterns, non-homogeneous air-water MoreIn this study, the effect of limited inclination angle on two-phase flow in a vertical pipe was investigated, focusing on the formation of liquid film thickness using image recording and processing techniques. To generate annular flow patterns, non-homogeneous air-water flow was utilized in three transparent pipes with diameters ranging from 25 to 75 millimeters. After analyzing the flow pattern results for various superficial gas and liquid velocities, Reynolds numbers, and different pipe diameters, both the maximum and minimum liquid film thicknesses were calculated and presented, along with their ratios. Additionally, the dimensionless equivalent liquid film thicknesses for inclined pipes were provided concerning the uniform film thickness in the fully vertical condition. The results indicated an increase in the ratio of maximum to minimum film thickness with a change in inclination angle from 90 to 85 degrees. Furthermore, the dimensionless equivalent liquid film thickness decreased with inclination angle, consistent with prior research findings. The uncertainty analysis revealed a maximum uncertainty of 4.9 percent in the experimental assessment of the liquid film thickness, which falls within an acceptable range. Manuscript profile -
Open Access Article
31 - Formulate Number Cycle of Fracture by the Thickness of the Warm Galvanizing Coating on the Fatigue
Kazem Reza Kashyzadeh Alireza ArghavanThe purpose of this article is to predict the number cycle of fracture on the different thicknesses of the warm galvanizing coating on plated parts using the micron scale. For this study, the abovementioned coating with the thickness of 13 & 19 were coated on standa MoreThe purpose of this article is to predict the number cycle of fracture on the different thicknesses of the warm galvanizing coating on plated parts using the micron scale. For this study, the abovementioned coating with the thickness of 13 & 19 were coated on standard specimens who were made of CK45 steel under the same conditions. Then, the S-N curve of each sample was attained empirically according to the standard fatigue testing. Using these results, the constant coefficient of statistical fatigue on the parts was calculated. The k ratio was also calculated according to the thickness of warm galvanizing coating using the two methods of Lagrange and Neville Interpolation and finally we offered an equation by which we can estimate the required cycles of fracture by knowing the thickness of coating with each specified stress under fatigue phenomenon. The calculated results significantly corresponded to experimental results. To ensure the accuracy of the research, the results of the two methods were compared with one another. Manuscript profile -
Open Access Article
32 - Design of Optimum Active Layer Thickness in Double Heterostructure Broad Area Ga As/Al_x Ga_(1-x) As Laser Diodes
nasser moslehi milani mohammad salmani yengejeh Majid shabzendeh -
Open Access Article
33 - Nanoporous anodized aluminum thickness optimization through pulse current mode
Iman Mohammadi Abdollah Afshar Shahab Ahmadi -
Open Access Article
34 - Numerical and Experimental Investigation of Thickness Variation in the Spinning Process of Al-1060 Alloy
Mohammad Honarpisheh Shayan Namazikhah Iman Alinaghian -
Open Access Article
35 - Using Artificial Neural Networks to Predict Rolling Force and Real Exit Thickness of Steel Strips
Mohammad Heydari Vini1 -
Open Access Article
36 - The study of deformation modes of buried pipelines under the permanent land displacement at the site of an active fault
Mahsen Oghabi Mehdi KhoshvatanPipe behavior under fault displacement is complex. In the past earthquake fault displacement of 2.1, 3 and 4 meters has been reported. Literature review shows understand failure modes of buried pipelines subjected to big fault displacement, is a challenge. In this paper MorePipe behavior under fault displacement is complex. In the past earthquake fault displacement of 2.1, 3 and 4 meters has been reported. Literature review shows understand failure modes of buried pipelines subjected to big fault displacement, is a challenge. In this paper, the influence of the thickness of the pipe on the response of the pipe under the fault displacement greater than 1 meter is studied. The quasi-static analysis by taking into pipe-soil interaction, by finite element simulation was performed with the ABAQUS software. Pipe and soil Dimensions and material properties of the soil and pipe is fixed in all analyzed. The fault displacement (0.2 to 3 meters) and the pipe thickness (from 8.2 to 20 mm) variable parameters of this article. For variable displacement faults and the thickness of the pipe, the pipe deformation After removing the fault, the thickness of the pipe and the amount of displacement of the fault on the behavior of pipe strain exists in the pipeline wall is extracted and discussed is located. The displacement of less than 1 meter, the pipes like the letter S and local buckling occurs in the pipeline. The displacement of 1.5 meters and more like the letter Z-pipe deformation and wrinkling occurs in the pipeline. The displacement of more than 1.5 meters, distortion, and wrinkling pipe is deformed. The displacement of more than 1 m by increasing the thickness of the pipe, the strain is reduced. Change the thickness of the pipe, the pipe failure mode changes. Manuscript profile -
Open Access Article
37 - Seismic Performance Evaluation of Composite Steel Shear Walls with Emphasis on Thickness of Infill Plate and Concrete Cover
Morteza Rastakhiz Ahmad MalekiSince the application of composite shear wall is increasing rapidly throughout the world, it is necessary to study its behavior. General interest of engineers in using this unique system due to its application and behavior indicates the need for better understanding of MoreSince the application of composite shear wall is increasing rapidly throughout the world, it is necessary to study its behavior. General interest of engineers in using this unique system due to its application and behavior indicates the need for better understanding of this system. In this paper, by modeling composite shear walls and using Abaqus software and its verification, the results have been used for modeling composite shear wall with emphasis on the impact of number and diameter of bolts under cyclic loading. Solid and shell cements are used for modeling concrete and steel elements respectively. The results of the numerical study shows that 3×3 and 3×2.5 configuration with diameter of 22.2 millimeters of bolts are the best sizes. Manuscript profile -
Open Access Article
38 - ارزیابی ژنتیکی برخی از خصوصیات لاشه ارزیابی شده با اولتراسونوگرافی بلادرنگ در گوسفند بلوچی
ع. محمدی س. حسنی س. زره داران م. باقری ع. میرشاهیدر تحقیق حاضر، به منظور ارزیابی خصوصیات لاشه یک گله هسته اصلاح نژادی گوسفند بلوچی از روش اولتراسوند در موجود زنده برای اندازه­گیری ضخامت چربی پشت و مساحت ماهیچه کمر و نیز تخمین پارامترهای ژنتیکی برای این صفات اولتراسونیک و اوزان زنده در سنین مختلف استفاده شد. دادهه Moreدر تحقیق حاضر، به منظور ارزیابی خصوصیات لاشه یک گله هسته اصلاح نژادی گوسفند بلوچی از روش اولتراسوند در موجود زنده برای اندازه­گیری ضخامت چربی پشت و مساحت ماهیچه کمر و نیز تخمین پارامترهای ژنتیکی برای این صفات اولتراسونیک و اوزان زنده در سنین مختلف استفاده شد. دادهها از 576 حیوان در سال 1390 جمعآوری شد. اجزاء (کو) واریانس با استفاده از مدل­های حیوانی یک متغیره و دو متغیره با روش حداکثر درستنمایی محدود شده و نرم­افزارASREML تخمین زده شدند. حیوانات ماده ضخامت چربی پشت و مساحت ماهیچه کمر بیشتری نسبت به حیوانات نر داشتند. تخمین­های وراثتپذیری مستقیم برای ضخامت چربی پشت، مساحت ماهیچه کمر، وزن تولد، وزن شیرگیری، وزن شش ماهگی، وزن نه ماهگی و وزن یکسالگی به ترتیب برابر با 32/0، 23/0، 27/0، 02/0، 12/0، 22/0 و 18/0 بود. همبستگی ژنتیکی (15/0±68/0) و فنوتیپی (03/0±62/0) مثبت و بالایی بین ضخامت چربی پشت و مساحت ماهیچه کمر وجود داشت. همبستگی­های ژنتیکی بین صفات اولتراسونیک و اوزان قبل از شش ماهگی به استثناء وزن تولد و مساحت ناحیه کمر (28/0±39/0) مثبت و پایین بود. برعکس، همبستگی­های ژنتیکی مثبت متوسط تا بالایی بین صفات اولتراسونیک و اوزان شیرگیری و پس از شیرگیری وجود داشت (33/0 تا 61/0). همبستگی­های فنوتیپی بین صفات اولتراسونیک و رشد مثبت و در دامنه 09/0 تا 37/0 متغیر بود. همبستگی ژنتیکی مثبت و بالای بین ضخامت چربی پشت و مساحت ماهیچه کمر نشان میدهد که انتخاب برای توده ماهیچه بزرگتر باعث تولید لاشه­هایی با چربی بیشتر میشود. Manuscript profile -
Open Access Article
39 - اثر سطوح مختلف کنجاله آفتابگردان و نیاسین بر عملکرد، پارامترهای بیوشیمیایی، وضعیت آنتیاکسیدانی و کلسترول زرده مرغهای تخمگذار
پ. باغبان-کنعانی ح. جانمحمدی ع.ر. استادرحیمیاین آزمایش به منظور بررسی اثر سطوح مختلف کنجاله آفتابگردان و نیاسین بر عملکرد، پارامترهای بیوشیمیایی، وضعیت آنتیاکسیدانی و کلسترول زرده تخم ­مرغ مرغان تخمگذار انجام گردید. تعداد 960 قطعه مرغ تخمگذار لگهورن سویه تجاری های-لاین W-36 به طور تصادفی در قالب 12 جیره غذای Moreاین آزمایش به منظور بررسی اثر سطوح مختلف کنجاله آفتابگردان و نیاسین بر عملکرد، پارامترهای بیوشیمیایی، وضعیت آنتیاکسیدانی و کلسترول زرده تخم ­مرغ مرغان تخمگذار انجام گردید. تعداد 960 قطعه مرغ تخمگذار لگهورن سویه تجاری های-لاین W-36 به طور تصادفی در قالب 12 جیره غذایی آزمایشی، 8 تکرار و در هر تکرار از 10 قطعه مرغ به عنوان واحد آزمایشی استفاده گردید. روش آزمایش به ­صورت فاکتوریل 3 × 4 در قالب طرح کاملاً تصادفی شامل 3 سطح کنجاله آفتابگردان (0، 10 و 15 درصد) و 4 سطح نیاسین (0، 175، 225 و 275 میلی گرم بر کیلوگرم) به مدت 10 هفته بود. خوراک مصرفی تحت تأثیر کنجاله آفتابگردان، نیاسین و اثر متقابل نیاسین و کنجاله آفتابگردان قرار نگرفت (05/0<P). تولید تخم ­مرغ، وزن تخم­ مرغ و توده تخم­ مرغ در مرغان تغذیه شده با سطح 15 درصد کنجاله آفتابگردان کاهش یافت (05/0>P). هر چند افزودن سطح 275 میلی­گرم بر کیلوگرم نیاسین موجب افزایش تولید تخم ­مرغ و توده تخم­ مرغ گردید (05/0>P). وزن تخم ­مرغ تحت تأثیر سطوح مختلف نیاسین قرار نگرفت (05/0>P). ضریب تبدیل خوراک تحت تأثیر سطوح مختلف کنجاله آفتابگردان قرار گرفت (05/0>P)، اما تحت تأثیر سطوح مختلف نیاسین و اثر متقابل نیاسین و کنجاله آفتابگردان قرار نگرفت (05/0<P). در حقیقت، سطح 15 درصد کنجاله آفتابگردان ضریب تبدیل خوراک را از 12/2 به 14/2 افزایش داد (05/0>P). بجز ضخامت پوسته، سایر پارامترهای کیفی تخم ­مرغ تحت تأثیر سطوح مختلف نیاسین قرار نگرفت (05/0<P). مکمل­سازی جیره غذایی با 15 درصد کنجاله آفتابگردان منجر به کاهش ضخامت پوسته از 29/0 به 28/0 گردید (05/0>P). سطح 275 میلی­گرم بر کیلوگرم نیاسین تأثیر معنی­داری بر استحکام پوسته تخم ­مرغ داشت (05/0>P). کلسترول زرده تخم ­مرغ به میزان قابل توجهی تحت تأثیر کنجاله آفتابگردان و نیاسین قرار گرفت (05/0>P). همچنین داده­های حاصل از این آزمایش نشان داد که غلظت آلانین آمینوترانسفراز، آسپارتات آمینوترانسفراز و تری ­گلیسیرید سرم تحت تأثیر کنجاله آفتابگردان، نیاسین و اثرات متقابل این دو قرار نگرفت (05/0<P). اما کلسترول سرم تحت تأثیر سطوح مختلف کنجاله آفتابگردان، نیاسین و اثرات متقابل این دو قرار گرفت (05/0>P). جیره­های آزمایشی خصوصیات آنتی­اکسیدانی سرم را تحت تأثیر قرار ندادند (05/0<P) Manuscript profile -
Open Access Article
40 - Investigation and sensitivity analysis of indicators affecting the dynamic pressure of GRP pipes in water supply designs (Case study: Songhar water supply plan)
Mohammadamin Gandomi sara Amirzadeh Roozbeh Aghamajidi Nooredin BazgirUnsteady currents in pipes can occur in various forms, one of which is the unsteady current of damping, which is called Surge shock.These currents are in the form of pressure waves and if not controlled in some way, can cause irreparable damage to the pipeline. In the p MoreUnsteady currents in pipes can occur in various forms, one of which is the unsteady current of damping, which is called Surge shock.These currents are in the form of pressure waves and if not controlled in some way, can cause irreparable damage to the pipeline. In the present study, the ram phenomenon was introduced and the effects of different parameters, pipe thickness and diameter, different flow velocities on the dynamic loads due to the occurrence of ram impact were investigated.Finally, it was observed that under the same conditions, the effect of pipe material is 25% effective in reducing the maximum impact. The maximum impact increase is about 1% due to a very small increase in pipe thickness. Doubling the moment of inertia reduces the maximum impact pressure by about 42%, which has been investigated using Water Hammer software. Manuscript profile -
Open Access Article
41 - Effect of the Physical Properties of Composite Packaging Materials on Keeping Quality of Smoked Catfish
Olayemi, Foline Folorunsho Raji, Abdulganiy Olayinka Bamishaiye, Eunice Iyabo -
Open Access Article
42 - Culculation of uncommon water volume in aquifer of Shiramin plain and the ways of decreases
Fatemeh Jafarzadeh Aziz Alinejad Morteza Allaf-Najib -
Open Access Article
43 - The role of geological factors on the destruction of Bam city due to the recent earthquake
Mohammad Ghafoori Gholamreza Lashkaripour Hossein Sadeghi Naser Hafezi-Moghaddas Ali Hussaini -
Open Access Article
44 - Car paint thickness control using artificial neural network and regression method
J Jassbi M Alborzi F Ghoreshi -
Open Access Article
45 - Numerical Investigation of the Effect of Concrete Injection on the Concrete Joints of the Arched Dam, Under the Applied Stresses
Mohammadhossein Mansourghanaei Alireza Mardookhpour -
Open Access Article
46 - Effect of rootstock type, fruit growth pattern and cell intensity of peel on pre-harvest fruit splitting in citrus
Mehrnaz Alikhani Babak Babakhani Behrouz Golein Mahmoud Asadi Parvaneh RahdariPre-harvest fruit splitting each year causing a significant reduction in yield and the prevalence of fungal rot in citrus fruits. In this research, effect of rootstock and also, physical traits of fruits on the severity of pre-harvest fruit splitting were investigated. MorePre-harvest fruit splitting each year causing a significant reduction in yield and the prevalence of fungal rot in citrus fruits. In this research, effect of rootstock and also, physical traits of fruits on the severity of pre-harvest fruit splitting were investigated. For this purpose, a research was performed in 2016-17 based on RCBD statistical design with three blocks of three mandarin cultivars (Page, Kara and Cadoux) grafted on four rootstocks (Sour orange, Citrange, Citrumelo and Cleopatra mandarin) under dry farming condition in Tonekabon city (private orchard). Obtained results showed that, both two investigated factors had significant effects on this disorder. According to results, sour orange and citrumelo caused the highest and lowest fruit splitting respectively and two other rootstocks with no significant difference were at an intermediate level in this regard. The significant role of growth pattern, thickness and cell density of peel at the stylar end of fruits on pre-harvest fruit splitting, caused that Page and Cadoux have the highest and lowest percent of fruit splitting respectively. Results also showed that cell density on the peel of the split fruits was lower than healthy ones. Manuscript profile -
Open Access Article
47 - Investigation of the effect of thermal treatment after welding on the corrosion properties of the interconnecting joint wall of Cu / SS 304 sheets
Ali Ebrahimi Akbarabadi Abbas Saadat Mohammadreza Khanzadeh hamid bakhtiariIn the present study, the effect of thermal treatment on the corrosion behavior and microstructure changes of two-layer stainless-304-Cu sheet steel sheets after the explosive welding process has been investigated. Explosive welding has been done in parallel with an exp MoreIn the present study, the effect of thermal treatment on the corrosion behavior and microstructure changes of two-layer stainless-304-Cu sheet steel sheets after the explosive welding process has been investigated. Explosive welding has been done in parallel with an explosive layer of 46 and 63 µm and a stop distance of 2-3 mm. After explosive welding, the heat treatment process was carried out at 350 and 450 ° C for 8 and 16 hours. Explosive welding with an explosive load and variable stop distance. From the results of the electrochemical impedance test, it can be seen that the n number in the heat treatment sample at 350 ° C and 8 hours is less than the heat treatment sample at 450 ° C and 8 hours, and as a result, the corrosion current in the heat treatment sample The temperature is 350 ° C and the time is 8 hours, which reduces the load transfer resistance. By comparing the heat treatment samples at 350 ° C and 8 hours and the heat treatment at 450 ° C and the time of 8 hours with varying aniline temperature, the annealing time is constant and the heat treatment sample at 450 ° C and time 8 The hour with more annealing temperature has a value of n (0.80), followed by heat treatment at 350 ° C and 8 hours (n = 0.66), due to annealing temperature and reduced energy storage In the chapter. Manuscript profile -
Open Access Article
48 - تحلیل عددی تاثیر فشار ضربانی برکاهش ضخامت در فرآیند شکلدهی آزاد داغ لوله به وسیله گاز
علی طالبی انارکی محسن لوح موسوی -
Open Access Article
49 - The effect of the anodization voltage changes on the electric resistance of porous anodic alumina barrier layer and its thickness used in strain sensing devices
Abolfazl Salehi Amnieh Khuzani -
Open Access Article
50 - The effect of explosive welding variables on corrosion behavior of 304 stainless steel–copper joint in 3.5% NaCl solution concentration environment
MohammadReza Khanzadeh Reza Peykari Hamid Bakhtiari -
Open Access Article
51 - Stress analysis of non-linearly variable thickness rotating disk in gas turbine engine using hyper-geometric method
Behrooz Shahriari Nedasadat Seddighi -
Open Access Article
52 - بررسی کمانش صفحات دایرهای و حلقوی ارتوتروپیک با ضخامت متغیر به روش ریلی- ریتز بهینه شده
فاطمه فرهت نیا آرش گل شاهدر تحقیق حاضر کمانش متقارن صفحات دایرهای و حلقوی ارتوتروپ با ضخامت متغیر مورد بررسی قرار گرفته است. ضخامت این صفحات در راستای شعاعی به طور خطی تغییر میکند و بارگذاری به روی آنها به صورت فشاری یکنواخت در لبه خارجی است. مرز خارجی صفحات دارای تکیهگاههای گیردار، ساده و Moreدر تحقیق حاضر کمانش متقارن صفحات دایرهای و حلقوی ارتوتروپ با ضخامت متغیر مورد بررسی قرار گرفته است. ضخامت این صفحات در راستای شعاعی به طور خطی تغییر میکند و بارگذاری به روی آنها به صورت فشاری یکنواخت در لبه خارجی است. مرز خارجی صفحات دارای تکیهگاههای گیردار، ساده و الاستیک مقاوم در برابر چرخش بوده و لبه داخلی به صورت آزاد میباشد. در تحلیل کمانش این صفحات، روش ریلی- ریتز بهینه شده بهکار گرفته شده است. در این روش از توابع چند جملهای که بر اساس تغییر شکل استاتیک صفحات دایرهای ارتوتروپ در خمش میباشند و ارضاءکننده شرایط مرزی هستند، استفاده شده است. در روش فوق از یک پارامتر نمایی در تابع تغییر مکان استفاده میشود و مقادیر ویژه به دست آمده از تحلیل، نسبت به این پارامتر حداقل است. مزیت این روش علاوه بر سادگی نسبی آن نسبت به سایر روشها، این است که کل الگوریتم حل مسئله قابل برنامه نویسی میباشد. در این تحقیق اثر تغییرات شعاع، ضخامت، نوع تکیه گاه، نسبت مدول یانگ در دو جهت شعاعی و محیطی و نسبت شعاع خارجی به داخلی در صفحات حلقوی بر روی ثابت کمانش (بار بحرانی کمانش بی بعد شده) بررسی شده است. نتایج بدست آمده مؤید آن است که در صفحات با ضخامت یکسان، افزایش میزان شعاع خارجی، موجب کاهش بار بحرانی کمانش میشود. همچنین با افزایش ضخامت در صفحات تحت شعاع ثابت، بار بحرانی کمانش نیز افزایش مییابد Manuscript profile -
Open Access Article
53 - Histopathological effects of flowering shoot hydroethanol extracts of Hypericumperforatum on experimental full-thickness skin wound healing in rats
, M AsghariehAhary M.R Farahpour,Wound healing has always been of great concern for the surgeon and therefore using different effective biologicalsubstances of either plant or animal origin for a faster and more effcient wound healing (repair) has been considered.The aim of this study was to investigat MoreWound healing has always been of great concern for the surgeon and therefore using different effective biologicalsubstances of either plant or animal origin for a faster and more effcient wound healing (repair) has been considered.The aim of this study was to investigate the accelerating effects of Hypericumperforatumhydroethanolextracton open wound healing in rats. Study design: thirty-six adult male Wistar-albino rats (weight 200±10 g) wererandomly allocated to three groups (one control and two treatment groups). Two seven-mm, circular, fullthicknesses, skin wounds were created on the back of each rat (2 on the left and 2 on the right side). In the controlgroup, wounds were treated by an ointment with no extract. The treatment groups were treated by standardizedointment containing 1% and 2% Hypericumperforatum extract. For histopathological studies, the 3 groups weresubdivided into 4 subgroups with 4 rats in each. Samples were taken from the groups 1 to 4 on days 3, 7, 14, and21, respectively. After taking the sample, the rats were euthanized. The sequential wound biopsies were evaluatedhistopathologically for their heamorrage,neutrophils and lymphocyte, new vascularization and re epithelialization.According to the results of this study, the ointment with 2% extract was much better and slightly better than thecontrol and 1% extract ointments, respectively. Manuscript profile