Essays on Oscillation

Counter Measures to the Bullwhip Effect

Introduction The bullwhip effect is the unexpected distortion of the supply chain. It refers to the “variability of order rates” (Disney and Lambrecht, 2008, p. 3). This supply chain hazard has its roots in Jay Forrester’s Industrial Dynamics Theory of the late 1950s (Goldsby and Martichenko, 2005). Forrester was the first person to introduce the concept and simulate a model in 1961. There are many solutions to counter the bullwhip effect. The reason why there are many solutions to the bullwhip effect is because it is triggered by multiple causes. For instance, the most common cause is overreacting ...

Introduction

The electricity industry is facing numerous challenges today including environmental pollution, increased demand, and aging infrastructure. Environmental issues are the primary concern of the power generation industry and have necessitated the inclusion of renewable energy sources in the generation of electricity. Renewable portfolio standard has set forth new requirements in the industry obligating electricity generation companies to generate a certain percentage of generated electricity to come from renewable sources. However, rapid integration of new energy sources on the old transmission and distribution infrastructure will cause quality, security and reliability challenges on the electric power supply. The good thing is ...

Amongst the biggest problems that are being recognized is the phenomenon of global warming. This is an alarming issue for the environmentalists as they believe that the sustainability, worse yet, the livability of the planet is at stake because of it. Because of the economic and industrial conditions of the planet, the climate of the earth is changing rapidly. The average temperatures that are being measured are increasing very quickly, and it is feared that in a short period of time, the temperature of the planet will rise higher than what is comfortable (Root). The problem of rising temperatures ...

Trigonometric computations are used in nearly all fields of geometry, physics and engineering. The triangulation technique has the great importance, which allows measuring the distance in astronomy and geography, monitoring the satellite navigation system. Also trigonometry is used in such areas as music theory, acoustics, optics, analysis of financial markets, electronics, probability theory, statistics, biology, medicine and so on. Daniel Bernoulli, Fourier and Cauchy made a huge contribution to the involvement of trigonometry and developed the idea of trigonometric series. In the middle of the XVIII century, appeared the most important in its consequences "argument of a string". Euler ...