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| Registros recuperados: 18 | |
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| Azadbakht, Mohsen; Jafari, Hassan. |
| Gears is a rotating cylindrical wheel having tooth cut on it and which meshes with another toothed part to transmit the power or torque.. In this investigation, at first, bending stress and contact stress between sun gear and planet gear tooth were determined using of Lewis and Hertzian equations. Afterward, a 3D model of final drives gear was investigated via FEM method. According to the obtained results, maximum of bending stress and contact stress occurred in Gear 1 and low status of helping gear, according to the results that given in the table 3, maximum bending stress using of theoretical and FEM simulation methods were obtained 918.62 Mpa and 951.82 Mpa, respectively. Also, maximum contact stress in same status using of theoretical and FEM... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Final drive; Stress analysis; Lewis equation; Hertzian equation; Bending stress; Contact stress.. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3079 |
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| Azadbakht, Mohsen; Torshizi, Mohammad Vahedi; Ziaratban, Armin; Ghajarjazi, Ehsan. |
| In this study, at first the shear parameters including the maximum shear force, shear strength, shear energy and power consumption of canola stem were calculated through force-deformation curve; and then these mechanical properties were determined and predicted using artificial neural network. For the tests, testing machine Instron (Model Santam STM-5) with 50 N load cell was used. Stems were cut at 3 diameter levels (1 to 3, 3 to 5 and more than 5 mm), 3 cutting speed levels (75, 115 and 150 mm/min ), 3 cutting angles (0°, 30° and 60°) and three replicates. Cutting parameters including maximum cutting force, shear strength; cutting energy; consumed power and cutting work were examined. Tests lasted for each stem until the full cut. Data... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canola; Cutting energy; Stem; Shear strength; Power consumption; Artificial Neural Network (ANN). |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3785 |
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| Azadbakht, Mohsen; Vahedi Torshizi, Mohammad; Kashaninejad, Mahdi. |
| Three voltage gradients (8.38, 10.83, and 13.33 V cm-1) and three weight loss percentages (10, 20, and 30 percent) were examined; also the system performance coefficient, input current, heating process duration, power consumption and electrical conductivity investigated. The response surface method was also used for modeling s and optimization. For the response surface method, weight loss percentage and voltage gradient were selected as independent variables; and factors system performance coefficient, heating process duration, input current, power consumption and electrical conductivity were selected as responses. According to results, all obtained models were significant for responses factors, but the voltage gradient and weight loss percentage were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sour orange juice; Ohmic method; Response surface method; Modeling. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6057 |
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| Azadbakht, Mohsen; Kiapey, Ali; Jafari, Ali. |
| Leaves scattered on the parks, passages, and other places have a detrimental effect on the beauty of the environment, and decrease photosynthesis, hence, the efficiency of plants. Leaves are also used in the production of peat. This makes using leaves collectors in parks, and organizations with a green space useful. Due to the fact that leaves take up a high volume, their transportation is difficult. Using the machine introduced in this paper which was equipped with a suction-blower system, increases efficiency, and at the same time decreases the costs of green space, and their workforce cost. Focusing on overcoming the mentioned difficulties, this study was carried out in order to design and produce a tractor powered leaves collector equipped with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaves collector; Blower system; Suction system; Design; Power; Tractor. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2850 |
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| Azadbakht, Mohsen; Torshizi, Mohammad Vahedi; Ghajarjazi, Ehsan; Ziaratban, Armin. |
| In this study, the canola stalk cutting parameters including modulus of mass density of stalk, special work of useful cutting, coefficient of cutting useful work and crush resistance coefficient were examined. For the tests, testing machine Instron (Model Santam STM-5) with 50 N load cell was used. Cutting was performed with a saw-serrated cutting blade that was attached to the Instron movable jaw. Stems were cut at three diameter levels (1 to 3, 3 to 5 and more than 5 mm), three cutting speed levels (75, 115 and 150 mm/minute), three cutting angles (0°, 30° and 60°) and three replicates. Cutting parameters including modulus of mass density of stalk, special work of useful cutting, coefficient of cutting useful work and crush resistance coefficient... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canola; Cutting; Stem; Modulus; Special work; Coefficient; Useful work; Crush resistance. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3648 |
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| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Abdigaol, Farhad; Amiri, Emad. |
| In this research the effect of moisture at three levels (57, 67, and 77 %) on the physical properties of the Barkat bean variety including, including dimensions, geometric mean diameter, volume, sphericity index and the surface area was determined. And the influence of different moisture content levels (67,57 and 77%), in two loading orientation (longitudinal and transverse) and three loading speed (8,6 and 10 mm min-1) on the mechanical properties of the maximum deformation, rupture force, rupture energy, toughness and the power to break the broad bean was investigated. It was observed in the mechanical properties that moisture changes and loading speed were affective at 1% on rupture force, rupture energy, and toughness. Loading orientation was affective... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broad bean; Physical properties; Mechanical properties.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3339 |
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| Azadbakht, Mohsen; Jahanian, Mahshid; Asghari, Ali; Nowrouzieh, Shahram. |
| The cotton plant contains fruits called capsules or bolls, in which the cotton fiber grows, and after the growth stages, the fibers appear through separating the carpels. This research investigated the required force to pick the cottonseed from four cotton variety (Golestan, Khorshid, Sajedi, and Kashmar) in three levels of moisture (three harvesting times) and three revolutions (1500, 2500 and 3500 rpm). To measure this force, designed and manufactured a device similar to a spindle cotton picker and using the actual needle of John Deere machine 9920. The bolls were tested in different revolution and moisture levels with the device. The results of experiments showed that the cross-effects of variety on speed, harvesting time on variety and harvesting... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cotton; Force; Fiber; Harvest; Cottonseed. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5354 |
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| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Ghaderifar, Farshid. |
| The mechanical properties for the threshing mechanism design, distance setting and the size of thrasher for better threshing and less damage to the seeds were used. In this study the mechanical properties of unbroken pods of canola were investigated including failure force, failure deformation, failure strain, failure energy, toughness, and modulus of elasticity planted in three canola varieties in the fields of Aliabad city in Iran including Hyola 50, 401, and 420 at the three times of sampling in pre-harvest, harvest and post-harvest in two direction of loading (in the direction of small and medium diameter). Canola varieties had different moisture levels at the same time, and this moisture was measured as a sub factor. The results show that moisture... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Canola; Mechanical properties; Canola pod.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3350 |
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| Azadbakht, Mohsen; Pourbagher, Roghayeh. |
| Used Azivash seed in the research has been provided in summer 2013. The samples were cleaned and separated manually and residuals and broken seeds were taken apart it and healthy seed was provided for testing. Then diameter, area of image, and round coefficient, were calculated using image processing application. Mass of 1000 seeds, mass density, real density and porosity percentage, static friction coefficient, repose angle in two modes of fullness and emptiness were measured. Liquid replacement method has been used to calculate density and volume of the seeds. The results showed that a positive relationship between physical properties of Azivash seed including geometric properties (diameter, volume), gravity properties (weight of 1000 seeds, real density... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azivash seed; Physical properties; Moisture content. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3349 |
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| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Barzanooni, Esmat; Pourbagher, Roghayeh; Tajari, Neda. |
| Three irrigation regimes, 6, 12 and 18 days, the distance between seeds in four levels: 5,10, 15 and 20 cm (density, respectively, 80, 40, 27 and 20 plants per m2) and a row spacing of 25 cm was considered that was tested in a randomized complete block design with three replications. The results showed that the effect of irrigation on cutting force, shear strength and energy per unit area was meaningful at 5% level and the effect of plant density on cutting force was meaningful at 1% level, but was not meaningful on shear strength. Also showed interaction between irrigation and plant density on cutting force, shear strength and energy per unit area is not meaningful. It was observed that the effect of irrigation and plant density on the length, diameter... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azivash; Plant density; Shear strength; Irrigation regime. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3340 |
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| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Kiapei, Ali; Jafari, Hassan; Salehi, Ebrahim; Pishgar, Reza. |
| Tobacco is one of the important agricultural and industrial products which plays a crucial role in economics and income of the producing countries and tobacco’s leaves are actually used commercially. In this study, the effects of two tobacco varieties K326 and 347 in three plant spacing of 30, 40, and 50 cm (with density of 33333, 25000 and 20000 plants/ha) on physical properties and weight of tobacco leaves are discussed. The results of variance analysis showed that the ¬¬¬effects of variety and plant spacing on leaf surface in 5% level were significant. Interaction effect of these two factors wasn’t significant. Also results showed that independent and interaction effects of plant spacing and different varieties of tobacco on leaf weight were significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tobacco; Plant spacing; Leaf; Weight; Yield. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3646 |
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| Azadbakht, Mohsen; Ziaratban, Armin; Vahedi Torshizi, Mohammad; Aghili, Hajar. |
| In this research, energy and exergy loss were analyzed in the laboratory for the drying of eggplant using a fluidized bed dryer. The drying experiment was conducted at inlet temperatures of 40, 50, and 60 and air velocities of 3, 5, and 7 m/s using samples with diameters of 5, 10, and 13 mm and a height of 1 cm. The effects of temperature, velocity of drying air, and sample size on energy consumption and exergy losses were investigated. The results showed that the minimum energy consumption and exergy losses occurred at a diameter of 13 mm, velocity of 3 m/s, and temperature of 40. Meanwhile, the maximum energy consumption and exergy losses occurred at diameter of 5 mm, velocity of 7 m/s and temperature of 60;. Generally, the results demonstrated that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy utilization; Exergy losses; Eggplant; Fluidized bed dryer; Temperature; Air velocity. |
| Ano: 2017 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4116 |
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| Azadbakht, Mohsen; Mahmoodi, Mohammad Javad; Vahedi Torshizi, Mohammad; Asghartabar Kashi, Peyman. |
| Nowadays, dielectric materials, as one of the nondestructive methods, have drawn the researchers’ attention to their diverse array of advantages to the other methods. Before loading and storage, 120 pears were examined under CT-Scan and 81 pears with zero bruise were selected followed by subjecting them to quasi-static and dynamic loading and a 10 day storage period was chosen to investigate the bruise levels and their relationships with dielectric constant. At the end of the storage period, the fruits were measured in their dielectric constant after their bruise levels were determined in CT-Scans. The measurements were undertaken in capacitor plate distances of 8, 11 and 14 cm for input voltages of 6, 10 and 14 V and input voltage frequencies of 20, 60... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dielectric; Pears; Bruise; CT-Scan; Load; Moisture; Voltage. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5480 |
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| Azadbakht, Mohsen; Jafarzadeh, Sajad; Varasteh, Faryal; Vahedi Torshizi, Mohammad. |
| This study was conducted considering the high importance of persimmon's chemical properties and the effect of different factors on its variations during storage and maintaining period. This study attempted to investigate some cases such as the effect of compressive loading parameters at 2 levels of 150 N and 250 N, three types of foam container packaging with polyolefin film, polyethylene terephthalate, and ordinary box and four types of putrescine polyamine coating with concentrations of 1 mM and 2 mM, distilled water and uncoated state, the chemical properties of persimmon fruit including the number of antioxidants, total phenol, flavonoids, vitamin C, pH, acidity and dissolved solids. The results showed that the highest content of total phenol and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Persimmon; Coating; Packaging; Antioxidant; Vitamin C. |
| Ano: 2022 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7291 |
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| Azadbakht, Mohsen; Tajari, Neda. |
| In this study, the rate of microwave drying method kiwifruit (Hayward variety) was studied. Samples in a completely randomized design with three different thicknesses of 4, 6 and 8 mm and weight of 15 g and three power of 200, 300 and 400W, with three replications, were dried in the microwave dryer. The samples were weighed every 30 seconds, and then moisture ratio was obtained. According to the results of experiments with different thicknesses Kiwifruit by increasing power, drying time decreased. The amount of effective moisture diffusion coefficient of kiwifruit slices with thickness of 4, 6 and 8 (mm), 3.25×10-9 to 6.49×10-9 (m2/s) and 3.65×10-9 to 1.83×10-8 (m2/s) and 1.29×10-8 to 3.25×10-8 (m2/s) was changed. The value of the effective activation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dryer; Kiwifruit; Microwave; Power; Thickness.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3172 |
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| Azadbakht, Mohsen; Hosaini, Rahim; Ghorbani, Mohammad Hosain; aldarwish, zuhair. |
| The Azivash plant was cultivated at densities of 20, 27, 40 and 80 m-2 and three irrigation intervals of 6, 12 and 18 days with three replications using a randomized complete block design. Cultivation was considered in a row and row spacing of 25 cm was used. Plant spacing on the row was respectively 5, 10, 15 and 20 cm. At harvesting time when the plant height was about 50 cm, the components of plant height (cm), number of leaves per plant (number), new plant amount of yield (kg ha-1), number of branches per plant (number), leaf area index (leaf area), fresh weight of leaves and stems (kg ha-1), dry weight of leaves and stems, and total dry matter per hectare (kg ha-1) were determined. The results showed that both components of the irrigation and plant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Azivash; Yield; Plant growth; Plant density; Irrigation regime. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3454 |
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| Registros recuperados: 18 | |
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