We have considered the propagation of plane waves in a pre-loaded linear elastic medium weakened by a large number of cracks with periodic function of fracturing degree.
The purpose of this study was to investigate prospectively the effects of the presence or absence of third molars during sagittal split osteotomies (SSOs) on the frequency of unfavorable fractures, degree of entrapment and manipulation of the inferior alveolar nerve (IAN), and procedural time.
However, the HRMR was only valid for hard rock granites with low fracturing degrees.
These include the fracture pattern, degree of displacement and type of prosthesis used.
Groundwater movement and recharge of aquifers are controlled by various factors like fracture pattern, degree of weathering, geo-morphological setup and amount of rainfall received.
The analysis results show that the No. 2 coal seam has a high fracture development degree, and is dominated by type II coal structure (cataclastic coals).
Regarding the type of the fracture and degree of displacement, there were 18 patients with Garteland type ІІ fractures and 52 patients with type ІІІ fractures; all of them had satisfactory functional and cosmetic results except for 11.5% of patients with type III fractures who had unsatisfactory statistically insignificant cosmetic results (χ2 = 0.309/P > 0.05).
By using finite element FE) and Taguchi method, the effects and significance of five key material parameters, namely, anisotropic index in thickness direction, yield strength, hardening exponent, strengthening factor and elastic modulus on the formability of inner rib, tendency of wall fracture and degree of inhomogeneous deformation of finished spun parts were obtained.
This depended on the fracture type, degree of medial comminution, and intraoperative fixation stability.
