Tag Archives: Simulation

Facility Location and Its Impact on the Environment: Using a Centralized and Decentralized Approach, a Case Study (Published)

There has been an increase in consumption of goods in the last century due to the rapid economic growth all over the world. Globalization has availed large streams of goods to meet this demand but the production, transportation, storage and consumption of these goods have caused environmental problems to emerge. Manufacturing companies are facing numerous pressures from the government and consumers to produce environmentally sustainable goods. The decision to set-up a plant is a strategic issue as the best facility location does not only ensure that the costs are minimized but also take care of the impacts on the environment. This paper presents a case of ABC Chinese steel manufacturing company operating in a centralized facility location approach and intends to evaluate the impact of a decentralized approach on the environment. A simulation of the two networks is run and the results reveal that the centralized approach is more suitable for this company as it is not only economical to them but it is also environmentally sustainable due to the lower carbon emissions produced by this model. The research concludes that facility location decisions greatly impacts the environment but the approach to adopt depends on the type of the product, mode of transportation and the choices of fuel.

Keywords: Environment, Simulation, Supply chain management, facility design, facility location

Machine Learning Based Approach to Simulate Drone Dynamics Related to Figure of Eight Maneuvering Pattern (Published)

Drone will be a commonly use technology used by major portion of the society and simulating a given drone dynamic will be an important requirement.   There are drone dynamic simulation models to simulate popular commercial drones. There are many proposed drone dynamic models with the base of Newtonian and fluid dynamics. Hoverer these models consist of many model parameters and it is impracticable to   evaluate required model parameters to simulate a given drone. If there is a simple mechanism to built machine learning based drone dynamic model to simulate a any given drone then it is address most of the above issues.  Figure of eight maneuvering pattern or its derivative is used in many activities in the domains of aviation, maritime and ground vehicle. Hence, proposed approach and conducted experiments presents the process of developing a machine learning based drone dynamics simulation related to a figure of eight maneuvering pattern

Keywords: Done, Simulation, machine learning, maneuvering

Shifting From Analogue to Digital TV Using IPTV Protocol (Published)

The problem is that the analogue television broadcasting will end in the year 2015. That is, any analog TV channels will not protected after this year. Switching entirely to digital technology and take advantage of the Internet protocols in broadcasting and various compression techniques become necessary. So researcher aimed to highlight the importance of digital and inevitable techniques to take advantage of online networks, leading to provide TV services over the Internet Protocol IPTV. The objectives of the research is to apply TV Internet protocol (IPTV) with VLC program, and Opnet modeler to simulate the IPTV system and measure system efficiency. The researcher used the experimental method and simulation program to conduct this research. It was found helpful to shift from analogue to digital broadcasting because it is efficient and reliable.

Keywords: OPNET Modeler, Simulation, Video on Demand (VOD)

A Comparative Study of the Contingency Assessment of the Reformed Nigeria 330kv Power Network under Normal and Fortified Conditions (Published)

One of the most important requirements for effective performance of a power system network is to make the network secure against unanticipated outages. It is very important to be able to predict the extent of violations that can occur in the network in the event of unprecedented contingencies. Contingency Analysis is useful both in the network design stages and for programmed maintenance or network expansion works to detect network weaknesses. The weaknesses can be strengthened by transmission capacity increase, and shunt compensations at the buses. This work considers the simulation of single generators and transmission line outages so as to carry out a full AC load flow based contingency analysis on the Nigeria 330kv post-reform grid. The simulation results show severe bus violations with generator contingencies at Mambilla and line contingencies at Jos-Gombe and Damaturu-Mambilla lines. Under the same contingencies for the fortified grid, there were no violations on the network, indicating that the simulated fortification can be recommended for real time performance of the network.

Keywords: Contingency, Post-reform grid, Simulation, Violations, fortified grid