To determine the potential of a low cost Irish engineered timber product to replace high cost solid timber for use in bending active structures such as gridshells a single Irish engineered timber product in the form of orientated strand board (OSB) was selected. A comparative study of OSB and solid timber was carried out to determine the optimum properties that make a material suitable for use ...

Initial destructive experimental studies have demonstrated significant stiffness variations in the damage region and large differences in compression and tension [2]. A quantitative description of the stiffness reduction in an artificial impact damage was demonstrated in [3], employing a non-destructive testing method coupled with an inverse approach. Tensile stiffness distribution of real impa...

In this study, a method is proposed to determine the fundamental period of layered soil profiles. A model considering the layered soil as shear type structure is used. At first, the soil profile is divided into substructures. Then, the stiffness matrices of the substructures considered as the equivalent shear structures are assembled according to the Finite Element Method. Thereinafter, the sti...

This article has studied the effect of ratio of stiffness and thickness between piezoelectric actuators and host plat has been explored on optimal pattern for placement of piezoelectric work pieces around a hole in thin isotropic plate under static loading to reduce stress concentration. The piezoelectric actuators reduce directly or indirectly the stress concentration by applying positive and ...

I n diabetes mellitus type 2, macrovascular complications are often predicted from a significant increase in aortic stiffness, which is higher than in essential hypertension for the same level of mean arterial pressure (MAP).1 Pulse pressure (PP) is increased due to an increase in systolic blood pressure (SBP), frequently associated with decreased diastolic blood pressure (DBP). Thus, a decreas...

Despite the screening programs for newborn children with hip ultrasonography, neglected developmental dysplasia of the hip (DDH) is still continuing to be a problem in the east and southeast parts of our country. The main complications are redislocation, avascular necrosis, and joint stiffness. We present an unusual complication, femoral neck fracture during passive motion under general anesthe...

The PRE (numerical simulation-based vehicle and bridge parameter road roughness estimation) method uses vibration data to identify the vehicle’s bridge’s mechanical parameters estimate unevenness simultaneously. This randomly assumes first. Secondly, it solves IEP (input estimation problem) DRS (dynamic response simulation) from obtain profiles of front rear wheels. Repeat random assumption min...

This study presents an analytical investigation into the mechanical behavior of a cartilage-polydioxanone (PDS) plate composite grafts. Numerical methods are used to provide a first-order, numerical model of the flexural stiffness of a cartilage-PDS graft. Flexural stiffness is a measure of resistance to bending and is inversely related to the amount of deformation a structure may experience wh...

PURPOSE OF REVIEW The current traditional risk scores are not sufficient to predict the full incidence of cardiovascular disease. In this brief review, we discuss the pathophysiological mechanisms through which arterial stiffness affects cardiac function and the additive value of markers of arterial stiffness, to detect the presence of coronary artery disease (CAD) and predict adverse outcome i...

Objective: To develop a CT elastography imaging system useful for part of the human body in which ultrasound is not capable of reaching. The proposed system would measure CT modality through fusion of the stiffness mapping on the images by the tactile sensor system, improving precision of the endoscopic operation. Methods: We made some liver fibrosis phantoms of bovine skin gelatin with various...