Die Model Driven Architecture (MDA) ist ein Standard der Object Management Group zur modellgetriebenen Software-Entwicklung (Object Management Group 2003). Hinter dem Ansatz verbirgt sich im Kern die Idee einer strikten Trennung von Spezifikation und Implementierung eines Systems. Modelle auf verschiedenen Abstraktionsebenen und automatisierte Transformationen zwischen Modellen setzen diese Ide...

The Object Management Group’s (OMG) Model Driven Architecture (MDA) strategy envisages a world where models play a more direct role in software production, being amenable to manipulation and transformation by machine. Model Driven Engineering (MDE) is wider in scope than MDA. MDE combines process and analysis with architecture. This article sets out a framework for model driven engineering, whi...

we present a numerical study of a one-dimensional version of the burridge-knopoff model [16] of n-site chain of spring-blocks with stick-slip dynamics. our numerical analysis and computer simulations lead to a set of different results corresponding to different boundary conditions. it is shown that we can convert a chaotic behaviour system to a highly ordered and periodic behaviour by making on...

the goal of facial animation is to synthesize realistic facial animated images using computer graphics. because of its capability in creating facial animated images using a few amount of information, facial animation using feature vectors was extensively studied in recent years. in general, this method is considered as one of the performance-driven facial animation base methods. in this regard,...

driven precast reinforced concrete piles (dprcp) is extensively used as a foundation for bridges constructed over canals in egypt in order to avoid the diversion of water canals. the objectives of this research include identifying the main activities of dprcp execution in the bridge-construction industry in egypt and the risk factors affecting them. in addition, assessment of the effects of the...

magnetohydrodynamic (mhd) mixed convection flow of cu–water nanofluid inside a two-sided lid-driven square enclosure with adiabatic horizontal walls and differentially heated sidewalls has been investigated numerically. the effects of moving lids direction, variations of richardson number, hartmann number, and volume fraction of nanoparticles on flow and temperature fields have been studied. th...

cable driven parallel manipulator (cdpm) is a special class of parallel manipulator in which the rigid extensible links are replaced by actuated cables. it is necessary to take into consideration the cable dynamics, i.e.; its mass, flexibility and curved shape for manipulating a long-span cdpm. these terms complicate governing equation of motion in a way that special tactic are applied for simu...

we estimated the prevalence of hiv, sexually transmitted infections (stis), and risky behaviors among female sex workers (fsw) in kerman city, iran.women, 18 years or older, who reported selling sex for at least 6 months during their lifetime and had at least one sexual contact with a client in the recent 12 months were sampled using responding driven sampling (rds). participants were interview...

tthe uncertainty estimation and compensation are challenging problems for the robust control of robot manipulators which are complex systems. this paper presents a novel decentralized model-free robust controller for electrically driven robot manipulators. as a novelty, the proposed controller employs a simple gaussian radial-basis-function network as an uncertainty estimator. the proposed netw...

water is the most essential component for sustaining lives of humans and other living creatures. supplying potable water with adequate residual pressure is a fundamental responsibility of city administration, which they do during normal conditions. but sometimes, abnormal conditions are formed resulting pressure deficient conditions during the daily operations of water distribution networks. th...