suitable soil structure is important for crop growth. one of the main characteristics of soil structure is the size of soil aggregates. there are several ways of showing the stability of soil aggregates, among which the determination of the median weight diameter of soil aggregates is the most common method. in this paper, a method based on adaptive neuro fuzzy inference system (anfis) was used...

the main object of this study was to evaluate the effect of tillage and crop residues management of barley (hordeum vulgare l.) on quantification and qualification yield of corn (zea mays l.). treatments were laid out in complete randomized block design with seven treatments and three replications and include (1) fire of straw and stubble, plow, disc and furrower (2) gathering and transfer of s...

Biphasic positive airway pressure (BiPAP) is a ventilatory mode in which two pressure levels (higher (Phigh) and lower (Plow)) acting as continuous positive airway pressure (CPAP) alternate at preset time intervals. BiPAP combines pressure-controlled ventilation with unrestricted spontaneous breathing. BiPAP has not yet been evaluated in patients with chronic obstructive pulmonary disease (COPD...

ABSTRACT-This paper aims to develop a new design of a bentleg (BL) plow and to determine its performance as compared to the conventional one using finite element approach. The difference between the modified and conventional BL plows is the direction of angle between the projection of cutting blade on horizontal plane normal to plow shank and the line perpendicular to the plow shank in the same...

RedBlade is a multi-functional autonomous vehicle with two seasonal configurations which allow it to plow snow in the winter and mow grass in the summer. This vehicle participated in the Institute of Navigation’s (ION) 1 st Autonomous Snowplow Competition in January 2011 and in the 8 th ION Robotic Lawnmower Competition in June 2011. It won 2 nd place in the former. This report presents the des...

Mechanised plow and shearer systems are widely applied in underground mines all over the world. Both used exploitation of hard coal deposited form seams various thickness. The selection appropriate complex depends on mining geological conditions thickness seam. However, with regard to thin medium seams, these complexes competitive solutions. Mines usually use either or systems. have certain adv...