New developments in the field of continuously operating earth moving equipment demand a new way of improving wear resistances of these equipment parts which directly involved with different types of sand and rocks during their operation in harsh field environment....

Scheduling is a form of decision making that plays a crucial role in manufacturing and service industries. This book is not only meant for the people having the knowledge of Scheduling but is also beneficial for Operations Research fraternity, Industrial units like Repair Workshops, semiconductors manufacturing, quality Control Centers etc....

Scheduling pertains to establishing both the timing and use of resources within an organization. Under the operations function (both manufacturing and services), scheduling relates to use of equipment and facilities, the scheduling of human activities, and receipt of materials....

The present research is done to study, to what extent the presently implemented scheduler Priority Queue (PQ) and Weight Fair Queue of IEEE 802.16, solves the issues like providing good reliability and minimum jitter with regard to 802.16 WiMAX protocols and what can be done to improve them further....