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1. Comparison of Fiber Reinforced Polymer (FRP) composite blade with steel blade performance used in chisel plow.

All over the world, farmers choose different implements for tillage, which depend on crop type, soil type, the amount of plant residue from the previous crop, etc. Tillage implement selection is also affected by the availability of implements, power consumption, labor costs, and fund. In this...

Author(s) : Rahmatian, M.; Karparvarfard, S. H.; Nematollahi, M. A.; Malvajerdi, A. S.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en1-fa19 ref.51

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2. Workplace and gravity: two mechanized cow milking systems compared for human physiological strains.

Despite the development of dairy farm mechanization, milking operations are still associated with heavy workloads which result in human physiological strains. This study investigated the role of gravity force in the linkage between load carriage and workers' physiological strains in milking work...

Author(s) : Hayati, A.; Marzban, A.; Asoodar, M. A.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en21-fa32 ref.36

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3. Vibration mode for effective mechanical harvesting of Shengy olive.

The main aim of this study was to optimize the design parameters of the fruit shakers for efficient harvesting of Shengy olive. A single-degree-of-freedom spring-mass model was established to determine the natural frequency and damping coefficient of the limb. A tractor-mounted shaker that...

Author(s) : Golpira, H.; Loghavi, M.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en33-fa41 ref.55

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4. Evaluating the efficiency of sugarcane harvesting units using a combined approach to data envelopment analysis and data mining.

Every organization needs an evaluation system in order to be aware of the level of performance and desirability of its units. It is more important for agricultural companies, including agro-industries. In this study, 20 sugarcane harvesting units were selected. After modeling based on...

Author(s) : Monjezi, N.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en43-fa54 ref.22

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5. Evaluation of the plateau honing on the friction and wear cylinder liners in agricultural tractors.

To enhance the fuel efficiency of the engines of agricultural tractors, the optimal control of interacting surfaces for improving engine performance becomes extremely significant, especially in developing the surface of cylinder liners. Therefore, plateau honing technology was designed on the...

Author(s) : Khodabakhshian, R.; Sajadi, S.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en55-fa66 ref.21

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6. Effect of infrared drying on drying kinetics and color changes of wild sage seed mucilage.

In this study, the effects of infrared (IR) dryer system parameters such as IR power, the distance of mucilage from lamp surface, mucilage thickness on drying kinetics and, color indexes (L*, a*, b* and ΔE) of wild sage seed mucilage (WSSM) were investigated in an IR dryer system. Experimental...

Author(s) : Amini, G. H.; Salehi, F.; Rasouli, M.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en67-fa79 ref.19

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7. Investigation on the capability of greenseeker sensor in predicting nitrogen status and fractional vegetation cover of spinach crop.

Fractional vegetation cover (FVC) and normalized difference vegetation index (NDVI) are the most important indicators of greenness and have a strong correlation with green biomass. The objective of this study was to evaluate a hand-held GreesnSeeker (GS) active remote sensing instrument to estimate ...

Author(s) : Jozani, M. H.; Bagherpour, H.; Hamzei, J.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2022 Vol.12 No.1 pp.en95-fa106 ref.55

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8. Designing and constructing an active boom balancing system using a new technique variable fulcrum method and comparing it with a conventional sprayer.

In this paper, a new system called "variable support" was designed and built. The boom rests on a round bar at its midpoint; as the boom tends to oscillate, a minute amount of rotation of the bar activated by a servomotor in an appropriate direction, alters the position of the resting point of the...

Author(s) : Pashaee, P.; Ghasemzadeh, H. R.; Behfar, H.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa145-fa159 ref.35

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9. The effect of compression ratio and alternative fuels on the performance of turbocharged diesel engine by GT-POWER software.

In this research, a one-dimensional computational fluid dynamics solution with GT-Power software was used to simulate a six-cylinder diesel engine to study the performance and exhaust emissions with different compression ratios and alternative fuels. The compression ratio was chosen to be 15:1 to...

Author(s) : Ahmadipour, S.; Aghkhani, M. H.; Zareei, J.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa199-fa212 ref.24

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10. Studying some pollutant emissions of an injection gasoline engine using mixed fuel of ethanol, gasoline and carbon nanoparticles.

This paper evaluated the effect of mixture of ethanol with gasoline and carbon nanotubes on emission characteristics using Jatropha biodiesel in a compression in a spark ignition engine. In this study five levels of ethanol (0, 10, 20, 30 and 40%) and three levels of carbon nanoparticles (0, 20 and ...

Author(s) : Mohammadi, M. M.; Rahnama, M.; Mehdizadeh, S. A.; Kazemi, N.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa213-fa230 ref.36

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11. Numerical study of wheat conveying in separator cyclone using computational fluid dynamics.

Computational Fluid Dynamics (CFD) is a diversified tool for predicting flow behavior in a wide range of design and operational conditions. Numerical solution of Navier-Stokes equations is the basis of all CFD techniques, which are the result of fast computer upgrades and a better understanding of...

Author(s) : Dizajyekan, S. N.; Shahgholi, G. H.; Fanaei, A. R.; Rostampour, V.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa231-fa246 ref.18

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12. Ventilation and cooling modeling and layout of fans, pads and vents of an octagonal greenhouse.

The aim of this study is to layout the fans, pads and vents to provide best air flow in an octagonal greenhouse. In this study, three layouts of evaporative pad and fan systems and vents (1- fans on the roof of the pyramids and vents on the wall of the pyramids; 2- pads and fans on the greenhouse...

Author(s) : Moghaddam, J. J.; Zarei, G.; Momeni, D.; Azadshahraki, F.; Ozlati, S.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa247-fa262 ref.many

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13. Modeling of potato slice drying process in a microwave dryer using artificial neural network and machine vision.

The fresh potato samples (Solanum tuberosum cv. Santana) with 83% (w.b.) of initial MC were sliced into the chips of 5 mm thickness. The first set of experiments calculated the shrinkage by developed image processing algorithm and MC by offline mass measurement and then data sets were used to...

Author(s) : Rezaei, S.; Behroozi-Khazaei, N.; Darvishi, H.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa263-fa275 ref.27

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14. Greenhouse mobile robot navigation using wheel revolution encoding and learning algorithm.

Repetitive and dangerous tasks such as harvesting and spraying have made robots usable in the greenhouses. The mechanical structure and navigation algorithm are two important parameters in the design and fabrication of mobile greenhouse robots. In this study, a four- wheel differential steering...

Author(s) : Heidari, A.; Parian, J. A.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.1-15 ref.35

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15. Prediction of seed flow rate of a multi-slot rotor feeding device of a corn planter.

In this study, a model was developed for predicting the seeding rate of corn seeds of a typical row-crop planter equipped with a multi-slot feeding device. To this, nine multi-slot rotors (with 4, 5 and 6 slots in three angles of mouth including 23°, 25° and 27°) were designed and manufactured....

Author(s) : Balanian, H.; Karparvarfard, S. H.; Khaneghah, A. M.; Raoufat, M. H.; Azimi-Nejadian, H.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.17-27 ref.19

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16. Evaluating histogram equalization and thresholding methods for segmentation of rosa damascena flowers in color images.

Several histogram equalization methods for enhancing the color images of Rosa Damascena flowers and some thresholding methods for segmentation of the flowers were examined. Images were taken outdoors at different times of day and light conditions. A factorial experiment in the form of a Completely...

Author(s) : Kohan, A.; Minaei, S.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.29-42 ref.35

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17. Effect of fragmentation of land on agricultural mechanization development using AHP technique.

The agricultural sector is in need of a rapid transition from traditional and livelihoods to the stage of advanced production and commercialization, in order to provide food security for the community and to play an effective role in strengthening national independence. Mechanization is an approach ...

Author(s) : Gavgani, M. S.; Zamani, D. M.; Par-Shokohi, M. G.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.43-53 ref.17

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18. Effect of pomegranate seed oil encapsulated in chitosan-capric acid nanogels incorporating thyme essential oil on physicomechanical and structural properties of jelly candy.

Pomegranate seed oil (PSO) is a well-known source of valuable compounds. The aim of this study was to investigate physicomechanical and structural properties of jelly candy enriched with PSO encapsulated in chitosan (CS)-capric acid (CA) nanogel incorporating thyme essentioal oil (TEO). For this...

Author(s) : Moghaddam, H. M.; Rajaie, A.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.55-70 ref.43

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19. Investigating the effects of qualitative properties on pears dielectric coefficient.

Nowadays, the dielectric properties of food and biological products have become a valuable parameter in foodstuff engineering and coating technology, covering a remarkable spectral domain from 10-6 to 1012. In the present study, 27 completely healthy pears were selected and subjected to...

Author(s) : Mahmoodi, M. J.; Azadbakht, M.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.71-81 ref.20

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20. Degree-day index for estimating the thermal requirements of a greenhouse equipped with an air-earth heat exchanger system.

In this research, an attempt was made to utilize an Earth-Air Heat Exchanger (EAHE) system as a source of shallow geothermal energy to provide thermal demands of a commercial greenhouse located in Alborz province, Iran. The degree-day index was applied to estimate the EAHE system's potential to...

Author(s) : Faridi, H.; Arabhosseini, A.; Zarei, G.; Okos, M.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.83-95 ref.41

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21. Investigating the energy consumption and economic indices for sweet-cherry and sour-cherry production in northeastern Iran.

The aim of this study was to investigate the energy consumption and production costs of sweet-cherry and sour-cherry in Northeastern Iran. Required data were collected from 75 sweet-cherry and 42 sour-cherry producers. The total energy inputs in sweet-cherry and sour-cherry production were...

Author(s) : Vahid-Berimanlou, R.; Nadi, F.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.97-110 ref.54

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22. Application of ms excel to estimate power needs of tillage tools.

This study deals with the application of the Microsoft Excel for the estimation of the power requirements of some tillage implements. The mathematical formulas embedded in the spreadsheet file have been developed in the previously published papers; however, those formulas were augmented herein in...

Author(s) : Ahmadi, I.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.1 pp.123-130 ref.20

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23. Feasibility of online diagnosis of botrytis elliptica disease in the lilium plant using the machine vision system and K-means.

The purpose of this study was to design, construct and evaluate a smart system based on image processing in order to identify and classify the leaf disease of the leaves of the lilium plant and remove it by spraying the contaminated parts. For this purpose, the linguistic hedges method was used to...

Author(s) : Biabi, H.; Mehdizadeh, S. A.; Salmi, M. S.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa277-fa291 ref.25

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24. Potential evaluation and modeling of biogas production from apple pomace.

Considering the large volume of apple waste in Iran, this study was designed based on potential evaluation and modeling of biogas production from apple pulp. To measure the potential of biogas production from apple pomace, a number of lab-scale digesters with a capacity of 600 ml and a working...

Author(s) : Sami, M.; Akram, A.; Sharifi, M.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa305-fa316 ref.43

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25. Optimization effect of ultrasound on rupture force and kernel extracting quality of walnut using response surface method (RSM).

The objective of this study is to find the effect of ultrasound factors on the amount of walnut rupture force and quality of kernel extraction. The results indicated that the loading speed, ultrasound time duration, loading direction, and moisture content had a high significant effect (P<0.01)...

Author(s) : Agdam, E. B.; Khoshtaghaza, M. H.; Najafi, G. H.

Publisher : Ferdowsi University of Mashhad, Mashhad, Iran

Journal article : Journal of Agricultural Machinery 2021 Vol.11 No.2 pp.fa331-fa342 ref.22

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