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Papers by Zargham fazel niari

Research paper thumbnail of A Neural Network Based Modeling and Sensitivity Analysis of Energy Inputs for Predicting Seed and Grain Corn Yields

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Research paper thumbnail of Design, Construction and Field Evaluation of a High Speed Inter-Row Cultivator

University of Mohaghegh Ardabili, 2012

In many parts of the world, row crops are treated with herbicides. Because of environmental conce... more In many parts of the world, row crops are treated with herbicides. Because of environmental concerns, crop cultivation is suggested as an excellent method of weed control. The object of this study was to design and construct a high speed inter-row cultivator. The speed of plowing has a significant effect not only on the depth of plowing but on factors which affect the quality of soil preparation such as loosening of the upper soil layer, cutting roots of the previous crops, covering and plowing in of weeds, leveling the finished surface of the field, displacement of the son layer and so on. In this study, the designed and constructed cultivator has a toolbar, unit frame, disk coulter and a flat sweep. The unit frame is attached to a tractor mounted tool bar by a suspension linkage. The suspension linkage allows the unit frame to move up and down relative to a tool bar that the cultivator unit is attached to. The numerical analysis was performed with COSMOS/M 1.71 FEM software (Structural Research and Analysis Corporation, CA).

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Research paper thumbnail of Quality Assessment of Components of Wheat Seed Using Different Classifications Models

Applied Sciences

To use machine vision technology in visual quality control of cereal seeds, sufficient knowledge ... more To use machine vision technology in visual quality control of cereal seeds, sufficient knowledge is necessary. In this work, the capability of machine visual systems, equipped with industrial digital cameras for the identification and classification of seven-grain groups in wheat seed samples, was studied. Two statistical models and three support vector machines were employed in this study. Through image processing of 21,000 single grains, the shape, colour, and textural features of each grain were determined. Ninety-one features were ranked through the ReliefF method. The shape features were the most prominent, followed by the textural and colour features. Among the five models tested, the highest classification accuracy was obtained using quadratic support vector machine (QSVM) and the first 35 features. In the test run of this model with independent data, the classification accuracy for sound white wheat, small white wheat, broken white wheat, shrunken white wheat, red wheat, bar...

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Research paper thumbnail of Investigation & Comparison of Soybean Harvesting Losses by Combine (direct harvesting and conventional method)

Go to AGRIS search. Try it! : Investigation & Comparison of Soybean Harvesting Losses by Comb... more Go to AGRIS search. Try it! : Investigation & Comparison of Soybean Harvesting Losses by Combine (direct harvesting and conventional method ...

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Research paper thumbnail of Design and Construction of a High Speed Inter-Row Cultivator

In many parts of the world, row crops are treated with herbicides. Because of environmental conce... more In many parts of the world, row crops are treated with herbicides. Because of environmental concerns, crop cultivation is suggested as an excellent method of weed control. The object of this study was to design and construct a high speed inter-row cultivator. The speed of plowing has a significant effect not only on the depth of plowing but on factors which affect the quality of soil preparation such as loosening of the upper soil layer, cutting roots of the previous crops, covering and plowing in of weeds, leveling the finished surface of the field, displacement of the son layer and so on. In this study, the designed and constructed cultivator has a toolbar, unit frame, disk coulter and a flat sweep. The unit frame is attached to a tractor mounted tool bar by a suspension linkage. The suspension linkage allows the unit frame to move up and down relative to a tool bar that the cultivator unit is attached to. The numerical analysis was performed with COSMOS/M 1.71 FEM software (Structural Research and Analysis Corporation, CA).

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Research paper thumbnail of Design and Construction of a High Speed Inter-Row Cultivator

Applied Mechanics and Materials, 2011

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Research paper thumbnail of A Neural Network Based Modeling and Sensitivity Analysis of Energy Inputs for Predicting Seed and Grain Corn Yields

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Design, Construction and Field Evaluation of a High Speed Inter-Row Cultivator

University of Mohaghegh Ardabili, 2012

In many parts of the world, row crops are treated with herbicides. Because of environmental conce... more In many parts of the world, row crops are treated with herbicides. Because of environmental concerns, crop cultivation is suggested as an excellent method of weed control. The object of this study was to design and construct a high speed inter-row cultivator. The speed of plowing has a significant effect not only on the depth of plowing but on factors which affect the quality of soil preparation such as loosening of the upper soil layer, cutting roots of the previous crops, covering and plowing in of weeds, leveling the finished surface of the field, displacement of the son layer and so on. In this study, the designed and constructed cultivator has a toolbar, unit frame, disk coulter and a flat sweep. The unit frame is attached to a tractor mounted tool bar by a suspension linkage. The suspension linkage allows the unit frame to move up and down relative to a tool bar that the cultivator unit is attached to. The numerical analysis was performed with COSMOS/M 1.71 FEM software (Structural Research and Analysis Corporation, CA).

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Quality Assessment of Components of Wheat Seed Using Different Classifications Models

Applied Sciences

To use machine vision technology in visual quality control of cereal seeds, sufficient knowledge ... more To use machine vision technology in visual quality control of cereal seeds, sufficient knowledge is necessary. In this work, the capability of machine visual systems, equipped with industrial digital cameras for the identification and classification of seven-grain groups in wheat seed samples, was studied. Two statistical models and three support vector machines were employed in this study. Through image processing of 21,000 single grains, the shape, colour, and textural features of each grain were determined. Ninety-one features were ranked through the ReliefF method. The shape features were the most prominent, followed by the textural and colour features. Among the five models tested, the highest classification accuracy was obtained using quadratic support vector machine (QSVM) and the first 35 features. In the test run of this model with independent data, the classification accuracy for sound white wheat, small white wheat, broken white wheat, shrunken white wheat, red wheat, bar...

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Research paper thumbnail of Investigation & Comparison of Soybean Harvesting Losses by Combine (direct harvesting and conventional method)

Go to AGRIS search. Try it! : Investigation & Comparison of Soybean Harvesting Losses by Comb... more Go to AGRIS search. Try it! : Investigation & Comparison of Soybean Harvesting Losses by Combine (direct harvesting and conventional method ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Design and Construction of a High Speed Inter-Row Cultivator

In many parts of the world, row crops are treated with herbicides. Because of environmental conce... more In many parts of the world, row crops are treated with herbicides. Because of environmental concerns, crop cultivation is suggested as an excellent method of weed control. The object of this study was to design and construct a high speed inter-row cultivator. The speed of plowing has a significant effect not only on the depth of plowing but on factors which affect the quality of soil preparation such as loosening of the upper soil layer, cutting roots of the previous crops, covering and plowing in of weeds, leveling the finished surface of the field, displacement of the son layer and so on. In this study, the designed and constructed cultivator has a toolbar, unit frame, disk coulter and a flat sweep. The unit frame is attached to a tractor mounted tool bar by a suspension linkage. The suspension linkage allows the unit frame to move up and down relative to a tool bar that the cultivator unit is attached to. The numerical analysis was performed with COSMOS/M 1.71 FEM software (Structural Research and Analysis Corporation, CA).

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Research paper thumbnail of Design and Construction of a High Speed Inter-Row Cultivator

Applied Mechanics and Materials, 2011

Bookmarks Related papers MentionsView impact