For developing and benchmarking autonomous logistic processes, dynamic models are essential. The paper investigates two different modelling approaches regarding their abilities to describe an exemplary scenario – an autonomously controlled shop floor. A discrete-event simulation model is compared to a continuous System Dynamics model. An autonomous control strategy is developed and its effectiv...

rapidly increasing urbanization in the world, especially in developing countries, let to increasing urban extents. rapid urban growth causes to appearance many problems such as wasting environmental resources, inability of providing necessary services for citizens and unplanned growth. urban mangers and planners need tools for understanding amount and size of future urban growths to prevent the...

In this paper, the one-dimension river quality system dynamics model was applied to the water quality simulation, and the conceptual GIS-SD frame was constructed. Based on the component GIS and system dynamics model, the experimental system of water quality simulation in water pollution accident was developed. The Songhua River water pollution accident which happened on November, 2005 was used ...

A model of multistage stochastic programming over a scenario tree is developed in which the evolution of information states, as represented by the nodes of a scenario tree, is supplemented by a dynamical system of state vectors controlled by recourse decisions. A dual problem is obtained in which multipliers associated with the primal dynamics are price vectors that are propagated backward in t...

conclusions the results indicated that the model, compared with other models, was user-friendly and the desired results were obtained by a minimal data. materials and methods the current paper developed a process model. first, a sketch of nitrate and ammonia storage, their specifications and parameters were set out and created on a page, and then, mathematical relations of each process were set...

Surabaya Metropolitan Area (SMA) comprising Gerbangkertosusila Region in East Java is the prime driver for regional economic activity at provincial and national scales. However, increasing growth has insignificantly contributed to environmental sustainability as shown by ecological deficit. A suitable scenario should be formulated within this region during development. In general, carrying capa...

chooshing the knowledge management strategy is affected by different organizational factors like business strategy, organizational structure, organizational culture, information technology strategy, human resource management, and dynamics of knowledge. it is difficult for strategists to consider all these factors in choosing appropriate km strategy. in this research after presenting a six step ...