Osama Mohammed Elmardi Suleiman Khayal

Research

A Review for Dynamic Scheduling in Manufacturing

Article December 8, 2018

This paper discusses review of literature of dynamic scheduling in manufacturing. First, the problem is defined. The scheduling problems are classified based on the nature of the shop configuration into five classes, i.e., single machine, parallel machines, flow shop, job shop, and open shop. A variety of approaches have been developed to solve the problem of dynamic scheduling. Dynamic scheduling could be classified into four categories, completely reactive scheduling, predictive-reactive scheduling, robust predictive reactive scheduling, and robust proactive scheduling. It is better to combine together different techniques such as operational research and artificial intelligence to overcome dynamic scheduling problems so as to endow the scheduling system with the required flexibility and robustness, and to suggest various orientations for further work is this area of research.

The Effect of Using Excessive Oil – Gasoline Mixture on the Acceleration of Bajaj Rickshaw Vehicles

Article July 3, 2018

In this research paper, a Bajaj rickshaw vehicle was tested under variable loads and five different oil - fuel mixture ratios ranging between 2% and 12.5%. Three readings of each experiment were taken and average values were extracted. It was found that oil - fuel mixture ratios which lie between 2% and 5% are the most suitable ratios that could be used by rickshaw drivers and technician mechanics. These ratios are recommended to be used because they give the vehicle's engine higher acceleration, longer operation period life, diverge the overhaul maintenance period intervals, and that they cause less impact to the surrounding environment.