the main objective of this study is to investigate the production factors productivity in large manufacturing sub-sectors. for this purpose, using statistical data for period 1972-2004, we have tried to study and analyze the trend and level of production factors productivity (partial and total productivity) in each sub-sectors classified according to isic two digits code. the average and margin...

In the context of Industry 4.0 (I 4.0), one most important aspects is data, followed by capital required to deploy advanced technologies. However, Small and Medium Enterprises (SMEs) are neither data ready nor have upgrade their existing machinery. SMEs, legacy machines do not gathering capabilities. this scenario, concept retrofitting machinery with sensors building an Industrial Internet Thin...

Abstract In the development of modern agriculture, intelligent use mechanical equipment is one main signs for agricultural modernization. Navigation technology key machinery to control autonomously in operating environment, and it a hotspot field research on machinery. Facing accuracy requirements autonomous navigation robots, this paper proposes visual algorithm robots based deep learning imag...

this study was conducted to compare the methods of seed bedpreparation in rangelands of khash region in sistan and baluchestan province iniran. a split plot design was conducted based on randomized complete blockdesign with three replications in 1999. five seed bed preparation methods wereused as main plot as: 1) seed sown by passing livestock. 2) seed sown machinery.3) seeds sown as drilled in...

Purpose: To examine the necessity of conducting measures to strengthen main trackbed railway tracks in order reduce impact track repairs on infrastructure, ensure and enhance carrying capacity lines. demonstrate need increase output high-quality leading machines using closed-loop technology, as well propose additional aimed at optimizing number personnel involved production process. Methods: A ...

The energy efficiency, greenhouse gas (GHG) emissions, and carbon efficiency of paddy rice production were analysed in Sari in the Mazandaran province of Iran during 2011–2012. Data was collected through questionnaires and interviews with paddy producers. The results showed that the net energy gain was 27,932 MJ ha-1 and energy efficiency was 1.83 during production. The results o...

conclusions the designed safe irrigator syringe seems to be applicable in wound irrigation and superior to the conventional devices regarding efficacy and user comfort. results all of the interns stated that the new device is quite applicable for wound washing and is easy to handle. nine interns believed that safe irrigator syringe is superior to the conventional devices regarding efficacy and ...

Senior Research Proposal 11-1-2000 Abstract Alan Turing’s landmark paper “Computing Machinery and Intelligence” proposed a famous test of machine intelligence: the ability to imitate human conversation. In the 50 years since the publication of Turing’s paper, the fields of Artificial Intelligence and Natural Language Processing have made great advances, and yet no program has ever successfully ...

Annually more than 80% of the overall budget of the uran solid waste management system in Iran is allotted to collection and transportation of the solid wastes. The main objective of the current study is to evaluate the external costs associated with solid waste collection, transfer, and transportation in Tehran for the period of 2018 to 2032 based on the current situation. Waste guidance syste...