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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

collection of abstracts Vol. 4, No. 2

j Agricultural Machinery [2016-04-26]

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POSTED TO: Journal of Agricultural Machinery [2228-6829]

FULL TEXT AVAILABLE
Journal Article

Journal article

From:
Ferdowsi University of Mashhad

Drying is one of the oldest methods to preserve agricultural products and hence expanding the food market. By drying, the agricultural products can be stored and transferred to the market throughout the year. One of the most important and nutritious vegetables is turnip which can be used by drying in out of season. In this research, the hot air and vacuum drying methods of turnip were compared ...

SUBJECT: vacuum drier; rehydration; turnip; shrinkage

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

As one of the most important conditions in sustainable agriculture, optimization of energy consumption in agriculture is necessary in order to reduce the production cost and saving non renewable resources as well as reduction of air pollutants. In this regard, this study was conducted in Saman region, Chaharmahal va Bakhtiari province. A linear programming based on Data Envelopment Analysis (D ...

SUBJECT: technical efficiency; peach; saman region

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

Fluidized bed dryers have not yet been used for drying products such as mint leaves. This could be due to high porosity and low mechanical resistance resulting in poor quality of fluidization. Applying vibration has been recommended to overcome problems such as channeling and defluidization, and hence improving the fluidization quality. In this research, a laboratory scale vibro-fluidized bed ...

SUBJECT: fluidized bed drying; coefficient of performance; effective moisture diffusivity; pharmaceutical plants; activation energy

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

In recent years, automation in agricultural field has attracted more attention of researchers and greenhouse producers. The main reasons are to reduce the cost including labor cost and to reduce the hard working conditions in greenhouse. In present research, a vision system of harvesting robot was developed for recognition of green sweet pepper on plant under natural light. The major challenge ...

SUBJECT: computer vision; image processing; automatic harvesting; texture index; robot

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

Within the last few years, a new tendency has been created towards robotic harvesting of oranges and some of citrus fruits. The first step in robotic harvesting is accurate recognition and positioning of fruits. Detection through image processing by color cameras and computer is currently the most common method. Obviously, a harvesting robot faces with natural conditions and, therefore, detect ...

SUBJECT: regional maxima; separation; machine vision; harvesting robot; orange harvesting, image processing

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

In this study, the energy and economic analysis of peanut production in Guilan province of Iran was studied. Data were collected from questionnaires of 75 farmers. The data were collected from three farm size categories namely: 0.1–0.5 ha, 0.5-1 ha and larger than 1 ha. The results revealed that 19407.36 MJ ha-1 energy input was totally consumed. The highest share of energy consumption belonge ...

SUBJECT: peanut; energy efficiency; farm size; cost analysis; guilan province

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

In the present study, a laboratory electrostatic separator was constructed and its separation potential of white saffron impurities from stigma was investigated. The device was comprised of a nylon ribbon which moves in contact with a woolen brush and was charged by the triboelectric effect. The charged ribbon, then, moved over the material pan. Since the electrostatic behavior vary from vario ...

SUBJECT: separation; electrostatic; saffron

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

Many research projects have been conducted about using ultrasonic sensors to estimate canopy volume. This study investigates using software applications such as artificial neural network (ANN) to improve the estimation of canopy volume by using ultrasonic sensors. A special experimental system was built. The system had three ultrasonic sensors mounted vertically on a wooden pole with an equal ...

SUBJECT: precision agriculture; ultrasonic sensor; artificial neural network; variable rate technology; tree canopy

POSTED TO: Journal of Agricultural Machinery [2228-6829]

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Journal Article

Journal article

From:
Ferdowsi University of Mashhad

In this research, the imposed forces on three muscles including: Gastrocnemius muscle, Trapezius muscle and Quadratus lumborum of the tractor drivers during clutching have been studied. The sample included 30 persons and the research was conducted on two domestic tractors including: MF285 and MF399 models. The clutching forces for these tractors were measured as 340 N and 290 N, respectively. ...

SUBJECT: operator; ergonomic; muscle; algometer; tractor

POSTED TO: Journal of Agricultural Machinery [2228-6829]

FULL TEXT AVAILABLE