How has Human Civilization Advanced Because of our Knowledge of Fluid Essay

How has Human Civilization Advanced Because of our Knowledge of Fluid Mechanics - Essay Example s a diverse field in physics that have several branches such as fluid dynamics that studies effects of forces on fluid motion, fluid statics that studies fluids at rest, and fluid kinematics that studies fluids in motion. Fluid mechanics works hand in hand with hydraulics and has existed for a long time. Engineers also use fluid mechanics in aerodynamics when designing planes, ships, trains, and cars, designing mechanical systems such as engines and machines and town planning (Braben 45). Fluid mechanics has solved many problems since the ancient civilization to the modern world. In fluid mechanics, Civil engineers try to solve problems in floods by constructing better bridges and roads; they solve drainage problems by designing proper sewage systems, and design underground aquifers that supply water. The existence of fluid mechanics has contributed largely in the advancement of human civilization by affecting many areas. In the ancient civilization, many countries such as Egypt, India, China, and the Mayan people in South America used fluid mechanics in the construction of many structures. In the present day, application of fluid mechanics is seen in the construction of water reservoirs such as dams, wells, and boreholes. These serve humans in storage of water required for irrigation and drinking. Wells have existed since the ancient civilization, and they are actually used in the analysis of fluid mechanics. Other constructions include dams and boreholes (Braben 52). In the ancient civilization, human beings used pumps that dug shallow wells and boreholes. There was no technology to help dig deeper ones, and the pumps were manual and driven by hand. This caused contamination of water most of the times and people died of water borne diseases. In the present day, engineers use electrical and automated machines to drill deep wells and boreholes of up to 100 to 400 feet and this has helped a lot in solving such a problem. Unlike in the past where people went to

Operational Analysis and Effectiveness Case Study

Operational Analysis and Effectiveness - Case Study Example Operations as defined by Heizer is the management of production of goods and services that add value to the firm. Thus, operations cannot be ignored any wherelets first analyze briefly what actually is the function of an airline industry. Airline industry provides services to its customers by transporting them from one destination to another be it international, national, regional or simply for cargo purposes. The operations issues that are important and critical include airport capacity, route structures, technology and costs to lease or buy the physical aircrafts1. Some of the larger issues that organizations face every time are the weather conditions, fuel costs and labor. Since weather effects flight schedules and is quite variable and naturally unpredictable; weather extremes such as snow, fog, and extreme temperatures can halt the operations of the air transport and hence add to costs both in terms of opportunity cost and the physical cost already incurred. Without fuel, no aero plane could fly, fuel costs comprise around 17-18% of the total cost of the airline company. For managing fuel efficiency the air transportation management should schedule flights properly as for example short haul flights are less fuel efficient as greater part is consumed in landing and take off. Labor is very important, which includes all sorts of labor and skills, flight attendants, pilots, baggage handl ers, dispatchers, customer services, air hosts and hostesses etc. The critical activities2 of an airline industry include demand forecasting, network design, revenue management, route planning, airline schedule planning, irregular operations aircraft routing, integrated scheduling, real time crew management, crew pairing optimization, air traffic flow management, crew rostering, air traffic simulation and control, and also coping with the concerned authorities' control program. Now the critical activities are discussed independently, and the relevant outcome and importance is also specified. Demand forecasting by airlines It is important for an air transportation industry to forecast demand levels correctly, as the management of demand can help in maximizing revenues as much as possible. And since demand for air travel seems to have been growing at the multiples of GDP therefore the need becomes more pronounced. And, there is a need to understand the demand for airlines industry is of two types, viz. underlying growth and the induced growth. The underlying growth in demand occurs as a reason of naturally occurring external factors in the environment;