a sensitivity analysis of the flood safety of solaimantangeh dam using a regional climate change simulation is presented. based on the output of the ccsm (community climate change system model) general circulation model, the nircm (north of iran regional climate model) computes regional scale output with 50 km spatial resolution and 21 vertical layers. using the sres (special report emission sc...

climate is a complex system which is changing mainly due to the increase of greenhouse gases. because of the importance of climate change and the effects it can have on water resources, in recent years, this topic has been taken into consideration for different basins on earth. the objective of this study is to investigate the effects of climate change and forecasting meteorological variables o...

Our current ability to perform packet-level simulations of large-scale networks is limited by factors such as processing speed and memory resources. Many approaches have been proposed to reduce the complexity of simulation models in a manner that reduces the computing resources required while preserving the fidelity of the simulation. In this paper we consider topology reduction as a means to r...

In the context of current increasing variety, interconnectivity and alteration, many methods and tools for planning and decision-making such as time series analysis and trend extrapolation do not longer work out. Along the demands for good governance and open government, policy-makers need concise, reliable and up-to-date information to manage society's problems and affairs in an efficient and ...

Government smallholder irrigation schemes were developed in former homeland areas of South Africa during the apartheid era. Although experiencing serious financial, technical, and institutional problems, most of them are now earmarked for rehabilitation and transfer to water users’ associations. Transfer operators find it difficult to evaluate the potential for viability, then to organise the t...

When planning to change operations at ports there are two key stake holders with very different interests involved in the decision making processes. Port operators are attentive to their standards, a smooth service flow and economic viability while border agencies are concerned about national security. The time taken for security checks often interferes with the compliance to service standards ...

Improving the quality of learning and teaching has always been in the interest of instructors in all fields of study. There have been tremendous efforts to this end. In this article, learning and teaching modules enhanced with computer technology are introduced. This approach is based on concept questioning and scenario building aided with interactive animation, simulation, and rich graphical c...

Pressurized pipe networks used for fresh-water distribution can take advantage of recent advances in sensing technologies and data-interpretation to evaluate their performance. In this paper, a leak-detection and a sensor placement methodology are proposed based on leak-scenario falsification. The approach includes modeling and measurement uncertainties during the leak detection process. The pe...

This paper presents a tool for dynamic simulation of radio resources in WiMAX IEEE802.16e-2005 networks. The developed tool provides an integrated environment for defining user scenario characteristics, BS planning, simulation and analysis. For implementing the different mechanisms of WiMAX radio technology, the simulation tool kernel is defined on a system-level, dynamic, stochastic and a disc...

In this paper we discuss an application of network computing in the area of stochastic simulation. We focus on main programming issues associated with designing of the latest version of AKAROA2, a simulation package in which network computing is applied in a practical and user-friendly way. This implemention is based on Multiple Replications In Parallel (MRIP) scenario of distributed simulation...