This paper presents a pair of online, interactive assessments designed to measures students’ computational thinking skills. The assessments are part of a larger project to bring computational thinking into high school STEM classrooms. Each assessment includes interactive tools that highlight the power of computation in the practice of scientific and mathematical inquiry. The computational tools...

The speed and range of epidemic spreading is strongly influenced by the topology and dynamics of the relevant transmission network. This is, however, not a uni-directional relationship. The mutual interaction between epidemic spreading and the evolution of the transmission network is described within a new mathematical framework by a closed set of partial differential equations. This allows to ...

In this paper, a comprehensive mathematical model for designing an electric power supply chain network via considering preventive maintenance under risk of network failures is proposed. The risk of capacity disruption of the distribution network is handled via using a two-stage stochastic programming as a framework for modeling the optimization problem. An applied method of planning for the net...

The one dimension computational model of a sequential injection engine, which runs on compressed natural gas (CNG) with spark ignition, is developed for this study, to simulate the performance of gas flow pressure profile, under various speed conditions. The computational model is used to simulate and study of the steady state and transient processes of the intake manifold. The sequential injec...

ParLeda is a software library that provides the basic primitives needed for parallel implementation of computational geometry applications. It can also be used in implementing a parallel application that uses geometric data structures. The parallel model that we use is based on a new heterogeneous parallel model named HBSP, which is based on BSP and is introduced here. ParLeda uses two main lib...

This paper presents a new mathematical model for the problem of scheduling part families and jobs within each part family in a flow line manufacturing cell where the setup times for each family are sequence dependent and it is desired to minimize the maximum completion time of the last job on the last machine (makespan) while processing parts (jobs) in each family together. Gaining an optimal s...

An often-noted feature of computational agents research is its interdisciplinary nature. The growing use of computational models in social, biological and economic systems raises many question and concerns. Platforms such as Swarm enable researchers to construct detailed, robust computational models. The availability of these platforms may speed the pace of the computational revolution and open...

abstract: in this study an appropriate computational approach was presented for estimating the boiling temperatures of 41 different types of olefins and their derivatives. based on the guidelines of this approach, several structural indices related to the organic components were applied using graph theory. meanwhile, in addition to evaluating the relation between the boiling temperatures of ole...