Search results for "Simulation"
showing 10 items of 5095 documents
A Metamodeling Approach to Evolution
2001
With the increasing complexity of systems being modeled, analysis & design move towards more and more abstract methodologies. Most of them rely on metamodeling tools that employ multi-view models and the four-layer metamodeling architecture. Our idea is to use the metamodeling approach to classify and to constraint the possible evolutions of an information system with the effect to improve both detection of evolution conflicts and disciplined reuse. Within the domain of UML metamodeling, a refinement of the metamodel-level classification is proposed that includes bases for defining a metric of the evolution (in terms of distance between metamodels).
MOESM2 of From grass to gas: microbiome dynamics of grass biomass acidification under mesophilic and thermophilic temperatures
2017
Additional file 5: Table S2. Overview of reaction stages and reactor performance.
Additional file 1 of Case report: Trans-papillary free stenting of the cystic duct and of the common bile duct in a double biliary ducts anastomoses …
2021
Additional file 1: Video. Imaging evaluation and surgical maneuvers.
"Table 10" of "Properties of hadronic Z decays and test of QCD generators"
1992
Thrust distribution.
"Table 9" of "Properties of hadronic Z decays and test of QCD generators"
1992
Thrust distribution.
Supplementary material from Competition between strains of Borrelia afzelii inside the rodent host and the tick vector
2018
Supplementary material supporting the paper
Students of Religion Studying Social Conflict Through Simulation and Modelling: An Exploration
2020
Researchers at our university use modelling and simulation (M&S) to study religious conflicts, and we wanted to introduce undergraduate students of religion to this research approach. Hence, we started a three-year educational design research project to empirically study ways to introduce these students to M&S as a viable research method in their discipline. The research project will entail several iterations, which aim to have a feasible and effective design of lessons and a better understanding of the learning processes. The first iteration was exploratory and is reported here. For this exploration, we organised a seminar, which was videotaped for post hoc analysis. The seminar started wi…
Pre-Service Primary Teachers' Beliefs of Teaching Science With Simulations
2016
Although the benefits of the use of simulations in science education have been extensively documented, research on pre-service teacher education related to the use of simulations in science teaching remains limited. The aim of this study was to investigate the beliefs of pre-service primary teachers in two teacher training programs of two different universities (n = 36 and n = 18) related to teaching science with simulations. The teachers participated in an intervention where they planned and gave a science lesson where simulations were used. The effect of the two different types of interventions on the beliefs was also studied. The Interconnected Model of Professional Growth by Clarke and …
A fractional-order model for aging materials: An application to concrete
2018
Abstract In this paper, the hereditariness of aging materials is modeled within the framework of fractional calculus of variable order. A relevant application is made for the long-term behavior of concrete, for which the creep function is evaluated with the aid of Model B3. The corresponding relaxation function is derived through the Volterra iterated kernels and a comparison with the numerically-obtained relaxation function of Model B3 is also reported. The proposed fractional hereditary aging model (FHAM) for concretes leads to a relaxation function that fully agrees with the well-established Model B3. Furthermore, the FHAM takes full advantage of the formalism of fractional-order calculu…
Comparative classical and ab initio Molecular Dynamics study of molten and glassy germanium dioxide
2008
A Molecular Dynamics (MD) study of static and dynamic properties of molten and glassy germanium dioxide is presented. The interactions between the atoms are modelled by the classical pair potential proposed by Oeffner and Elliott (OE) [Oeffner R D and Elliott S R 1998, Phys. Rev. B, 58, 14791]. We compare our results to experiments and previous simulations. In addition, an ab initio method, the so-called Car-Parrinello Molecular Dynamics (CPMD), is applied to check the accuracy of the structural properties, as obtained by the classical MD simulations with the OE potential. As in a similar study for SiO2, the structure predicted by CPMD is only slightly softer than that resulting from the cl…