Introduction: One of the main disadvantages of composites is marginal microleakage using flowable composites as a liner beneath composite restorations has been recommended to reduce microleakage. The aim of this study was to assess the microleakage of class II restorations with different flowable composites liners. Materials & Methods :45 extracted premolars teeth with class II cavity prepar...

In the composite winding process of thermal protection materials, thickness errors prepreg tape will result in an unstable process. order to alleviate this problem, a control system is required. Therefore, had been designed stability by eliminate error based on analysis The consists speed controlled rotational roller. can be detected, and roller maintain Experimental results illustrate that con...

Abstract In this paper, an adaptive composite anti-disturbance control of heavy haul trains (HHTs) is proposed. First, the mechanical principle and characteristics couplers are analyzed longitudinal multi-particles nonlinear dynamic model HHTs established, which can satisfy that forces vehicles in different positions different. Subsequently, a radial basis function network (RBFNN) employed to a...

Composite facial expressions were prepared by aligning the top half of one expression (e.g., anger) with the bottom half of another (e.g., happiness). Experiment 1 shows that participants are slower to identify the expression in either half of these composite images relative to a "noncomposite" control condition in which the 2 halves are misaligned. This parallels the composite effect for facia...