Preventive orthodontics is an aspect of pediatric dentistry, which requires exclusive set skills and understanding to aid the patient’s treatment properly align teeth. The safest way prevent future malocclusions from tooth loss place a space maintainer (SM), advocated embrace until eruption succedaneous permanent SM manufacturing painstaking process that plentiful communication with laboratory ...

Most existing 3D virtual worlds are based on a ”meeting-space”model, conceived as an extension of textual chat systems. An attractive 3D interface is assumed to be sufficient to encourage the emergence of a community. We look at some alternative models of virtual communities, and explore the issue of promoting community formation in a 3D meeting space. We identify some essential or desirable fe...

The desire to have intuitive, seamless 3D interaction fuels research into new 3D interaction approaches. However, research continues to rely on Brunelleschi’s perspective to provide a sense of visual depth to create a 3D graphical display. The interactive control space has been mapped directly into the 3D virtual display space without much thought about the effect that perspective distortion ha...

Actual applications of the energy absorbers showed that actual loads are not applied in the form of pure axial compression, pure bending or pure torsion. In reality, an energy absorber component may be subjected to combined loading of compression, bending and torsion. A number of previous articles have investigated the behavior of energy absorbers under oblique loading. In such cases, the obliq...

This paper discusses the use of con guration space (C-space) as a means of visualization and control in teleoperation of robot arm manipulators. The motivation is to improve operator performance in tasks involving manipulator motion in a complex three-dimensional (3D) environment with obstacles. Unlike other motion planning tasks, operators are known to make expensive mistakes in arm control, d...