Oxidation of low density lipoprotein (LDL) particles plays a key role in the etiology of atherosclerosis and coronary artery disease (CAD). Oxidative stress enhances the likelihood of LDL oxidation and atherosclerotic plaque development. Paraoxonase (PONI) is an enzyme associated with HDL that metabolizes organophosphates and has antioxidant activity. In order to investigate the relationsh...

background and aims. cad/cam systems facilitate the use of zirconia substructure materials for all-ceramic copings. this in vitro study investigated the marginal and internal fit of zirconia copings made with cad/cam system and slip-casting method. materials and methods. sixteen cad/cam made zirconia copings and 16 slip-cast made zirconia copings were fabricated and cemented with glass-ionomer ...

nowadays, cad/cam simulation is considered as a strong tool to estimate performance of various systems and to reduce costs and testing time. in this study, we used gt-power software to model the performance of an si engine. the results indicate that the engine power drops significantly as altitude increases. to compensate power loss, the engine is equiped with a turbocharger system. the proper ...

GIDeS (Gesture-based Intuitive Design System) is a gesture-based modeling system that addresses the known ergonomic shortcomings of present-day CAD systems for conceptual shape design. GIDeS uses a tablet and stylus combination to combine the intuitive appeal of gesture-based interfaces with context-based information to achieve what we call RISCI (pronounced risky Reduced Instruction Set Callig...

Creating designs in CAD and performing their stress-strain analysis are complex computational tasks. Their successful solution depends on a number of prerequisites: availability of large computational power; comprehensive knowledge of physical and mathematical computing; and solid skills of programming and working in a variety of separate software products that are not integrated to each other ...

this paper introduces an indirect adaptive fuzzy sliding mode controller as a power system stabilizer for damping local and inter-area modes of oscillations of multi-machine power systems. this controller is designed based on the combination of sliding mode controller and the fuzzy logic systems. the fuzzy systems are used to approximate the unknown functions of power system model. generator sp...

It is widely recognized that today’s demands in mechanical power transmission systems, (MPTS), are characterized on the world wide basis by an increasing variety of system combinations . This calls for the development and use of computer programs for designing such systems quickly and accuratelly . An important reason for using computer aided design, (CAD) of integrated in the design of MPTS is...

AIMS To evaluate the diagnostic power of abnormal global longitudinal strain (GLS) to detect non-obstructive coronary artery disease (CAD) in the resting echocardiogram. GLS using two-dimensional speckle-tracking echocardiography (2D STE) is a powerful tool for detecting advanced CAD. However, the diagnostic power of 2D STE for detecting moderate, clinically unapparent CAD from images obtained ...

This study conceptualizes, operationalises and validates the concept of Knowledge Management Competence as a four-phase multidimensional formative index. Employing survey data from 310 respondents representing 27 organizations using the SAP Enterprise System Financial module, the study results demonstrate a large, significant, positive relationship between Knowledge Management Competence and En...