Siti Azfanizam Ahmad

Universiti Putra Malaysia | UPM · Department of Mechanical and Manufacturing Engineering

Algorithm is widely used in various areas due to its ability to solve classes of problems. Due to multiple objectives to be met and varied algorithm application in this digital era, addressing the problem-solving optimization in a more efficient and effective way has become more reasonable. Forest transportation planning is one of the most expensiv...

A university cafeteria is a queueing system characterised by non-stationary time of arrival with limited resources where the arrival rate is time dependent and has different pattern of arrival for different time interval. This means at certain time of the day; the arrival rate is much higher than other time. For a university cafeteria, the arrival...

Among TRIZ (Theory of Inventive Problem Solving) methods that are applied to help solve design problems, ARIZ (Algorithm for Inventive Problem Solving) is considered to be the most powerful and is able to solve problems with “minimal changes to the system”. However, the potential solutions derived from ARIZ are solution concepts that are general an...

A university canteen is a queueing system characterised by non-stationary time of arrival with limited resources where the arrival rate is time dependent and has different pattern of arrival for different time interval. This means at certain time of the day, the arrival rate is much higher than other time and for a university canteen, the arrival r...

Among TRIZ (Theory of Inventive Problem Solving) tools that are applied to help solve design problems, ARIZ (Algorithm for Inventive Problem Solving) is considered to be the most powerful and is able to solve problems with ‘minimal changes to the system”. However, the potential solutions derived from ARIZ are solution concepts that are very general...

The increasing cost of energy especially with the recent electricity tariff hike in Malaysia has made home owners to be mindful of ways to reduce energy consumption. There are many ways to cut energy consumption at home, fundamentally they can be grouped into two types of approach namely technological and behavioural approach. Both approaches are n...

With the ever competitive global market swamped with more choices of high-tech gadgets from smartphones to head-mounted display eyewear like “Google Glass”, Information and Communication Technology (ICT) is one of the key factors to engineering and technological advancement and the bridge to the future. In view of such significant importance, the g...

In recent years, environmental problems have become a social concern and the energy usage would contribute to these problems. The increasing of atmospheric temperature and decreasing of the ozone layer has urged the society as an end-user to come out with various methods to reduce the energy usage. There are a lot of methods to reduce the energy us...

TRIZ contradiction matrix was built after years of study on patent information. Designers using TRIZ contradiction matrix have to identify the improving and worsening features of their design problems and determine the inventive principles to solve their design problems. It is common to identify multiple improving and worsening features and with so...

The Bees Algorithm, a heuristic optimization procedure that mimics bees foraging behavior, is becoming more popular among swarm intelligence researchers. The algorithm involves neighborhood and global search and is able to find promising solutions to complex multimodal optimization problems. The purpose of neighborhood search is to intensify the se...