Modern agricultural tractors are complex systems, in which multiple physical (and technological) domains interact to reach a wide set of competing goals, including work operational performance and energy efficiency. This complexity translates the dynamic, multi-domain simulation models implemented serve as digital twins, for rapid prototyping effective pre-tuning, prior bench on-field testing. ...

the chisel plow is one of the tillage implements utilized to carry out conservation tillage practices; therefore, it is valuable to pay more attention on the force requirement of this implement. to achieve this goal, a theoretical model was developed to calculate draft, specific draft, and drawbar power of a chisel plow. then, results obtained from the developed model were compared with the rep...

Bacterial tRNAs frequently have 4-thiouridine (s(4)U) modification at position 8, which is adjacent to the C13-G22-m(7)G46 base triple in the elbow region of the tRNA tertiary structure. Irradiation with light in the UVA range induces an efficient photocrosslink between s(4)U8 and C13. The temperature dependence of the rate constants for photocrosslinking between the s(4)U8 and C13 has been use...

Energy is one of the primary inputs in textile processing industries that have a significant impact on the cost of a cotton product. The energy cost-share is reported between 5-10% of the total production cost of woven cotton fabric in textile factories of developed countries. However, it is far higher in developing countries. This study aims to contribute to the understanding of energy use and...

the our purpose of objective is evaluation and comparison the energy flow in wheat lands of cities in alborz province. we try to calculate the indexes of energy ratio, gross energy, specific energy, energy efficiency, energy intensity, total input and output energy. population of the study consisted of farmers of cities in alborz province in the year of 1391-92. it was a best way that we use po...

in the present study, shearing properties of sugar cane stems were determined at five moisture content levels (46, 54, 62, 70 and 78% wb), three shearing speed (5, 10 and 15 mm min-1) and at ten positions on the stem. for measuring the shearing forces, the stems were severed by using a computer aided cutting apparatus. decrease in moisture content of stem from 78 to 46% wb led to 16.3 and 16.7%...

A method based on extensive laboratory and field measurements was developed to determine the dependence of specific rock cutting energy (SEc) drilling (SEd) for machines with different operating design characteristics similar breaking mechanics. Laboratory were performed a linear device drill, using measurement system measure electrical power forces force/torque transducers. Field consumption c...

Aim of study: To develop an instrumentation system comprising three force sensing elements to measure the draught resistance any tillage and seeding tools during field operation by connecting one element each three-point linkage tractor.
 Area Department AgFE, Indian Institute Technology, Kharagpur, India
 Material methods: Commercial S-type transducers were packed laterally in betwee...