Gravity and Motion Free fall – when the only force acting on an object is gravity. In free fall, the force of gravity alone causes an object to accelerate in the downward direction. All objects in free fall accelerate at the same rate. Air Resistance Air resistance is a type of fluid ...
A class of three-level designs for definitive screening in the presence of second-order effects. J. Qual. Technol. 2011, 43, 1–15. [Google Scholar] [CrossRef] Das, B.; Pal, S.; Bag, S. Weld defect identification in friction stir welding using power spectral density. Mater. Sci. ...
Versions Notes Abstract Warm forming is widely used to enhance the formability of aluminum alloy sheets. In warm deep drawing, the process variables significantly affect frictional characteristics at the tool–blank interface. It has been a conventional approach to use a constant value of friction coe...
Review Reports Versions Notes Abstract To realize the stable tracking control of the optoelectronic stabilized platform system under nonlinear friction and external disturbance, an active disturbance rejection controller (ADRC) with friction compensation is proposed to improve the target tracking ability and ...
According to ASTM C1856-17, Ultra-High-Performance Concrete (UHPC) is a special class of cementitious concrete with minimum specified compressive strength of 120 MPa (17.4 ksi), maximum aggregate size less than 5 mm (1/4 in.), and flow between 200 and 250 mm (8–10 in.) [1]. UHPC...