conclusions this approach may be an appropriate approach to the zygomatic arch in the zmc fractures and eliminates the use of the coronal flap. introduction zygomatic arch fractures are common injuries in the maxillofacial injuries. sometimes it is necessary to fix the unstable fragments of the zygomatic arch. case presentation we introduce a combination of transconjunctival and lateral canthot...

This paper presents a method for the dynamic modeling of parallel robots with flexible links and rigid moving platform based on finite element theory. The relation between elastic displacements of links is investigated, taking into consideration the coupling effects of elastic motion and rigid motion. The kinematic and dynamic constraint conditions of elastic displacements of flexible parallel ...

BACKGROUND Use of the flexible needle via the fibreoptic bronchoscope to aspirate mediastinal nodes or masses has largely superseded the use of the rigid needle via the rigid bronchoscope. However, the yield at fibreoptic bronchoscopy is relatively low, although this improves with the use of a wider gauge needle. In this study the sensitivity and the safety of rigid needle sampling of the media...

In this paper, based on the assumption that Euler’s two balance laws for a rigid body hold, Lagrange’s equations for a system of rigid bodies subject to general holonomic and non-holonomic constraints are derived. One advantage of this assumption is that it extends directly to rigid continua (i.e. infinite-dimensional systems [J. Casey, Z. Angew.Math. Phys. 46 (1995), Special Issue, S805– S847;...

abstract the prediction of active earth pressures is essential to the design of retaining walls in case of reinforced and unreinforced soils. in this study, a new analytical method is presented to determine the coefficient of earth pressure. the horizontal slice method is used to compute the active earth pressure behind a rigid retaining wall in consideration of the granular soils. to verify th...

This paper gives a numerical analysis of nonlinearities due to rigid, elastic mechanical end-stops in a vibrating energy harvester. Both an eigenvalue problem approach and time domain simulations are used. We consider two rigid end-stops limiting the motion of a proof mass. The dynamics are linear between the impacts which cause strong nonlinear behavior. Even though the output power varies lit...

In situ forming intragastric controlled-release formulation is a new technology in the field of oral controlled-release delivery systems. The objective of this study was to develop formulations that can control drug release up to 24 hours. In addition, a combination of appropriate polymers and solvents was selected that could form a drug loaded gel at the process temperature of 60-70 °C, which ...