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As the grain is bent further, more and more dislocations must be introduced to accommodate the deformation resulting in a growing wall of dislocations – a low-angle boundary. The grain can now be considered to have split into two sub-grains of related crystallography but notably different orientations.
Video game addiction is a broader concept than internet gaming addiction, but most video game addiction is associated with internet gaming. APA suggests, like Khan, [14] the effects (or symptoms) of video game addiction may be similar to those of other proposed psychological addictions.
Figure 1: Hall–Petch strengthening is limited by the size of dislocations. Once the grain size reaches about 10 nanometres (3.9 × 10 −7 in), grain boundaries start to slide. In materials science, grain-boundary strengthening (or Hall–Petch strengthening) is a method of strengthening materials by changing their average crystallite (grain
A 17-year-old boy died after reportedly playing an online computer game for 22 days straight. The young man had broken his leg and was bored at home, using video games to pass the time. The teen ...
Video game play is frequently associated with obesity. Many studies have been conducted on the link between television & video games and increased BMI (Body Mass Index). Due to video games replacing physical activities, there appears to be a clear association between time spent playing video games and increased BMI in young children. [30]
The Problem Video Game Playing Questionnaire (or PVP Questionnaire) is a scale measured by using a survey containing nine yes-or-no questions. It is designed to measure the disorder commonly referred to as video game addiction . [ 1 ]
Dislocations require proper lattice ordering to move through a material. At grain boundaries, there is a lattice mismatch, and every atom that lies on the boundary is uncoordinated. This stops dislocations that encounter the boundary from moving.
There are mainly two types of grain boundary sliding: Rachinger sliding, [2] and Lifshitz sliding. [3] Grain boundary sliding usually occurs as a combination of both types of sliding. Boundary shape often determines the rate and extent of grain boundary sliding. [4] Grain boundary sliding is a motion to prevent intergranular cracks from forming.