PURPOSE The aim of this study was to examine if package inserts (PIs) supplied with prescribed and over-the-counter medications in Saudi Arabia contain information relevant for the safe and appropriate use of these medications. METHODS Sixty PIs for prescription-only medications (n = 37) and over-the-counter medications (n = 23) were evaluated against a set of safety criteria compiled from th...

This paper is devoted to the problem of wear resistance in square Si3N4 ceramic cutting inserts, which exhibit high hardness and strength, combination with brittleness, machining super alloys (e.g., a nickel-based alloy Inconel 718 type) for aviation purposes, when subjected increased mechanical thermal loads. Microtextures were proposed reduce intensity contact loads on pad between edge workpi...

Inconel 718 has found use in many demanding applications due to its high temperature fatigue strength, hardness and low thermal conductivity . These material properties present a challenge productive quality (surface finish) machining promote rapid tool wear The work presented here describes the chip formation mechanisms of silicon nitride (Si 3 N 4 ) based ceramic SiAlON carbide whiskers reinf...

The use of high strength materials, like titanium alloys and tool steels, is becoming increasingly common in industry. However, these materials are difficult to machine because they maintain their mechanical properties even at high temperatures. Hence, conventional machining (CM) of these materials is slow and inefficient because only slow cutting speeds can be used. In order to increase produc...

This study investigates the effects of the lead angle and chip thickness variation on surface roughness during the machining of compacted graphite iron using ceramic cutting tools under dry cutting conditions. Analytical models were developed for predicting the surface roughness values of the specimens after the face milling process. Experimental data was collected and imported to the artificia...

Tungsten carbide is one of the ceramic materials characterized by high hardness. It has many uses in manufacturing, including cutting tools, die inserts and other parts that need with mechanical wear resistance. In this study, tungsten was reinforced alumina different ratios graphene to improve its properties. The BSE mode used electronic imaging device (SEM) study powders manufactured sample's...