Automotive components made from composite materials can result in significant weight savings over steel and aluminum. The main purpose of this article is to study about the selection of suitable composite material for automobile torsion bar which possess good strength to weight ratio and yield considerable weight savings. The conventional approaches to material selection problem tend to be less...

The global solved problem is the calculation of the parameters of ceramic material from a set of destruction tests of ceramic heads of total hip joint endoprosthesis. The standard way of calculation of the material parameters consists in carrying out a set of 3 or 4 point bending tests of specimens cut out from parts of the ceramic material to be analysed. In case of ceramic heads, it is not po...

STATEMENT OF PROBLEM Computer-aided design and computer-aided manufacturing (CAD/CAM) resins exhibit good mechanical properties and can be used as long-term restorations. The wear rate of such resins and their enamel antagonists is unknown. PURPOSE The purpose of this study was to test and compare the 2-body wear rate of CAD/CAM resin blocks. MATERIAL AND METHODS Wear specimens (N=42, n=6) ...

PURPOSE This study was conducted to determine the influence of standoff material on acoustic radiation force impulse (ARFI) measurements in an elasticity phantom by using two different probes. METHODS Using ARFI elastography, 10 observers measured the shear wave velocity (SWV, m/sec) in different lesions of an elasticity phantom with a convex 4C1 probe and a linear 9L4 probe. The experimental...

1. Abstract This paper describes a hierarchical computational model to optimize the material distribution and the local material properties of thermo-mechanical structures within the context of transient thermal conduction problems. The problem formulation assumes a given domain, prescribed thermal boundary and initial conditions, and the objective is to identify the non-homogeneous material th...

The aim of the present study was to establish a useful animal model that simulates humans sensitive to inhaled particulate matter (PM). We have developed a new rat model of acute bronchiolitis (Br) by exposing animals to NiCl2 (Ni) aerosols for five days. Three days following the Ni exposure, the animals developed signs of tachypnea, mucous hypersecretion, and bronchiolar inflammation which see...

BACKGROUND Workers laboring in steel industries in tropical settings with high ambient temperatures are subjected to thermally stressful environments that can create well-known risks of heat-related illnesses and limit workers' productivity. METHODS A cross-sectional study undertaken in a steel industry in a city nicknamed "Steel City" in Southern India assessed thermal stress by wet bulb glo...

A hyper-bus broadcast network (HBBN) consists of processors only sharing by some global buses, and there are no local links between processors. Based on such an architecture, we will exploit several ecient time parallel algorithms for solving the well-known fundamental data movement problems which had been extensively studied by researchers and widely applied to the ®eld of image processing, d...