Consulta: creatorFacets:"Alimardani, Reza"
Registros recuperados: 9
Data/hora: 13/06/2024 06:34:07

Design a capacitive sensor for rapid monitoring of seed rate of sugarcane planter
Provedor de dados: 111
Autores: Taghinezhad, Javad; Alimardani, Reza; Jafary, Ali.
A capacitive sensor method for measuring billet spacing uniformity with sugarcane (Saccharum officinarm L.) billet planter is investigated in this paper.  Therefore, an electronic device based on capacitive sensor was designed and developed to predict the planting spacing of sugarcane billets.  It consisted of four components: a rectangular parallel plate capacitor, electronic circuitry, microcontroller, and display unit.  Accordingly, a prototype of the precision metering device for sugarcane billets was developed.  After calibrating the monitoring system, the results were verified with calibrated curve by means of linear regression and paired T-test.  The performance of the device, including quality of feed index (QFI), multiple index and miss index was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Capacitive system; Sugarcane; Compare monitoring; Performance indices; Precision planting.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2576

Fuel consumption models of MF285 tractor under various field conditions
Provedor de dados: 111
Autores: Almaliki, Salim; Alimardani, Reza; Omid, Mahmoud.
Due to the ascending importance of energy in the world, prediction and optimization of Fuel Consumption (FC) in agricultural tasks is merit to consideration. In this study a Massey Ferguson (MF285) tractor was implemented with a low cost and precise data acquisition system as a means to record and monitor the affectual parameters on FC such as forward speed and instant fuel flow rate during field operation. Field experiments were carried out in the experimental farm of Agricultural Engineering Department of Tehran University, Karaj province, Iran, which had loamy soil texture. A mouldboard plow was used as tillage toll during the experiments at various tillage depths, engine speeds, forward speeds, tire inflation pressures, moisture contents and cone...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fuel consumption; Massey Ferguson (MF285); Modelling; Data logging system.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3776

Artificial Neural Network Based Modeling of Tractor Performance at Different Field Conditions
Provedor de dados: 111
Autores: Almaliki, Salim; Alimardani, Reza; Omid, Mahmoud.
Application of tractors in farming is undeniable as a power supply. Therefore, performance model for evolving parameters of tractors and implements are essential for farm machinery, operators and manufacturers alike. The objective of this study was to assess the predictive capability of several configurations of ANNs for performance evaluating of tractor in parameters of drawbar power, fuel consumption, rolling resistance and tractive efficiency. A conventional tillage system which included a moldboard plow with three furrows was used for collecting data from MF285 Massey Ferguson tractor. To predict performance parameters, ANN models with back-propagation algorithm were developed using a MATLAB software with different topologies and training algorithms....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial neural network; Tractive efficiency; Rolling resistance; Drawbar power; Fuel consumption.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3880

On-site measurement of soil moisture content using an acoustic system
Provedor de dados: 111
Autores: Meisami-asl, Elham; Sharifi, A.; Mobli, Hossein; Eyvani, Afshin; Alimardani, Reza.
Precision agriculture is a farming management concept based on observing and responding to intra-field variations.  One of the most important soil properties in farming is soil moisture content and it is necessary to develop new technique for measuring this property in a precision farming system.  This study investigates the measurement of moisture content in soil using an on-site, easy to use and real-time acoustic wave system.  The system consists of the propagation of acoustic waves such as sweep frequency sound wave (10-300 Hz) and multiple tone sound waves (120 Hz) through the soil.  Some properties of these acoustic waves enable estimation of soil water content such as peak amplitude (A), total power (TP), total harmonic distortion (THD) and signal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Keywords: acoustic waves; Soil moisture content; Sound properties.
Ano: 2013
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2571

Precision spray modeling using image processing and artificial neural network
Provedor de dados: 111
Autores: Azizpanah, Amir; Rajabipour, Ali; Alimardani, Reza; Kheiralipour, Kamran; Mohammadi, Vahid.
This study employed artificial neural network method for predicting the sprayer drift under different conditions using image processing technique. A wind tunnel was used for providing air flow in different velocities. Water Sensitive Paper (WSP) was used to absorb spray droplets and an automatic algorithm processed the images of WSPs for measuring droplet properties including volume median diameter (Dv0.5) and Surface Coverage Percent (SCP). Four Levenberg-Marqurdt models were developed to correlate the sprayer drift (output parameter) to the input parameters (height, pressure, wind velocity and Dv0.5). The ANN models were capable of predicting the output variables in different conditions of spraying with a high performance. Both models predicted the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sprayer; Drift; Image processing; Artificial Neural Network.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3261

Design, construction and evaluation of a sprayer drift measurement system
Provedor de dados: 111
Autores: Azizpanah, Amir; Rajabipour, Ali; Alimardani, Reza; Kheiralipour, Kamran; Ghamari, Bahram; Mohammadi, Vahid.
Spray drift study for reducing environmental hazards and protecting crops is of high importance as the pesticides used today are more active and many are non-selective. Drift potential can be restricted by assessing and optimizing equipment design, application parameters, the liquid spray properties, type of formulation and environmental conditions. The aim of this research was to design, construct and assess an intelligent system to determine the level of the spraying drift. The main parts of the system were liquid supply mechanism, pipes and nozzles, a controlled pneumatic system to pressurize the liquid, a nozzle moving system with a controlling panel and a tunnel for wind providing and control. To assess the performance of sprayer and drift of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sprayer; Wind tunnel; Drift; Volumetric mean diameter.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3308

Moisture content determination of oilseeds based on dielectric measurement
Provedor de dados: 111
Autores: Soltani, Mahmoud; Takavar, Amin; Alimardani, Reza.
Oilseeds have an important role in edible oil production.  Moisture content measurement of oilseed is an inevitable operation in harvesting and almost all postharvest processing such as handling, storage, milling and oil extraction.  In this paper, a cylindrical capacitive sensor was used to predict the moisture content of sesame, soybean and canola seed as a simple, low cost, rapid and reliable method.  Two varieties of each oilseed were selected and extracted equation from a variety was evaluated for another variety.  The hyperbolic regression and paired t-test were utilized to extract the calibration equations and perform a comparison between predicted moisture with actual values.  The R2 of calibration for Dashtestan and Ultan sesame were 0.998 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Department of Agricultural Machinery Engineering; Faculty of Agricultural Engineering &amp; Technology; University of Tehran; Karaj; Iran Oilseed; Sesame; Soybean; Canola; Moisture content; Capacitive sensor.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2773

Models of mechanical cutting parameters in terms of moisture content and cross section area of sugarcane stalks
Provedor de dados: 111
Autores: Taghinezhad, Javad; Alimardani, Reza; Jafary, Ali.
The objective of this study was to find optimizing moisture content and cutting area of sugarcane stalk cutting parameters using multiple regressions and to verify the optimum levels of the variables.  The effect of moisture content and cutting section area on mechanical cutting properties of sugarcane stalks was studied using a linear blade cutting and UTM (Universal Testing Machine) size reduction device.  Data obtained in the laboratory were divided into four different groups in order to determine the peak force, cutting energy, ultimate stress and specific energy.  Additional criterions were also proposed and used as an indicator of the cutting performance.  These were the marginal cutting parameter (MCP) and return to scale (RTS).  The data obtained...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mechanical cutting; Moisture content; Sugarcane stalk; Ultimate stress; Cutting energy; Multiple regression.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2579

Simulation of draft force of winged share tillage tool using artificial neural network model
Provedor de dados: 111
Autores: Akbarnia, Abbas; Mohammadi, Asghar; Alimardani, Reza; Farhani, Foad.
An artificial neural network (ANN) model, with a back propagation learning algorithm, was developed to predict draft requirements of two winged share tillage tools in a loam soil. The input parameters to the 3–7–1 ANN model were; share width, working depth and operating speed. The output from the network was the draft requirement of each tillage tool. The developed model predicted the draft requirements of the winged share tillage tools with a mean relative error of less than 7% and mean square errors of less than 0.05, when compared to measured draft values. This result indicates that the ANN model had successfully learnt from the training data set to enable correct interpolation and could be used as an alternative tool for modeling soil-tool interaction...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Analysis of variance; Back propagation; Force evaluation; Multi layer perceptron; Prediction.
Ano: 2014
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3022