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International journal of Advanced Biological and Biomedical Research، جلد ۲، شماره ۲، صفحات ۵۲۶-۵۳۴
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Codifying A Proper Mathematical Model for Predicting The Repair of The Tractors Used in Shahid Beheshti Cultivation Firm of Dezfoul. |
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| چکیده انگلیسی مقاله |
This study tries to codify a proper mathematical model which can be predict the costs of repair and maintaining the tractors as precisely as possible for three common models of tractors in Shahid Beheshti cultivation firm in Andimeshk-Ahvaz road of Dezfoul. Studied tractors include: Newhland TM155 Tractor which is chosen from the most perfect file of 10 tractor machines and Jandier tractor-3140 of 35 machines. Then we calculated the cumulative values of the two sets of data was used for different years of tractors working fitted to the final performance of the mathematical model of the six (linear exponential reverse multiple, second and third degree ) the by method of least squares and use of an computer software. With this operation, the most proper model of estimating maintenance cost for all three types of tractors is obtained as a multiplicative model and the corresponding parameters were calculated. In addition, the final model which is the best fit for a cumulative repair costs for operating hours of all tractors, was determined by multiplying. In order to determine the economic life (replacement age) 61 tractors in three different models based on price, the amount of interest rate and annual depreciation was calculated for each model and used along with the annual cost of maintenance for determining the economic life. |
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| کلیدواژه‌های انگلیسی مقاله |
Harvester,Replacement age,Mathematical model,Neural Network |
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| نویسندگان مقاله |
رحیم عموزاده |
ma, department of agriculture, islamic azad university, shooshtar branch, shooshtar, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)
محمد جواد شیخ داودی | mohammad javad sheykh davoudi
associate professor, department of agriculture, shahid chamran university of ahvaz, ahvaz, iran
سازمان اصلی تایید شده: دانشگاه شهید چمران (Shahid chamran university)
حیدر علی قاسم نژاد | heidar ali
department of agriculture, islamic azad university, shooshtar branch, shooshtar, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)
وحید دهقانی |
ma, department of agriculture, islamic azad university, shooshtar branch, shooshtar, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)
farajolla اشراقی مفرد | eshraghi mofrad
ma, department of agriculture, islamic azad university, shooshtar branch, shooshtar, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)
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| نشانی اینترنتی |
http://www.ijabbr.com/article_7113_348e572071d818140bb9537352050ff2.pdf |
| فایل مقاله |
اشکال در دسترسی به فایل - ./files/site1/rds_journals/2255/article-2255-303470.pdf |
| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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