Management Science & System Coursework Example | Topics and Well Written Essays - 3000 words

Management Science & System - Coursework Example This competency is described as the ability to systematically and fairly measure what is commonly thought as hidden costs difficult to quantify (INFORMS2010). Q. In the case study, five scenarios are presented (pages 60-61) but there is no detailed analysis of how the scenarios were identified. Explain how management science could have been used to identify a range of scenarios in this case. In the article â€Å"Accelerating the profitability of HP Supply chain,† the challenge to maintain corporate performance compels that a deeper analysis of simple product movement from end to end be drawn. First off, the industry pace dictates short term product value, whereas older products lose value quickly. Second, the HP operation is described by New York Times as an expansive business offering involving tens of thousands of products in million product configurations. Having the greater chunk of market shares in PCs, printers, and servers in over 170 countries across six continents is held by HP, continuous product entry occurs in the pipeline. To ensure effective service levels, HP has to contend with severe market diverse. Certain regions have less concentrated demands but high product variety. In which case, the inventory driven costs are considerably fixed values that can be controlled, if not brought to minimum, relative to its volume production. More importantly, these values can be measured and forecast (Davenport 2010, INFORMS2010, Ward et al 2010). The science behind the formulation of scenarios was pioneered by L. R. Ford. The idea is a particular scenario makes up network flows or a chain of related activities. In a set of scenarios, network flows could be analysed by comparison. The analysis assumes all variables remain unchanged except for a single factor in the supply chain configuration, which is altered deliberately to identify profit variation. Or, the cost structure determined in a particular scenario specifies the level of

Theory of the experiment Lab Report Example | Topics and Well Written Essays - 1750 words

Theory of the experiment - Lab Report Example This can be said to be a compromise between the Class A amplifiers and the Class B amplifier topologies. These amplifiers combines the sound quality provided by the class A simplifiers and the efficiency provided by the Class B amplifiers. This is achieved by having both transistors biased to have them conduct a signal close to zero. Figure 1.3 shows a class AB amplifier and its associated input and output waveforms. When small signals are applied, both transistors will be active, making the amplifier to function like a Class A amplifier. When a large signal is applied, only one transistor becomes active. This makes the amplifier to operate like a Class B amplifier. Class AB speaker amplifiers gives a high SNR and a low THD+N. they are also about 65% efficient. These amplifiers are used in making portable media players, tablets, cameras, and so on where high fidelity is required.Class D amplifiersThese amplifiers use PWM (pulse width modulation) to produce a rail to rail output signa l. This signal has a variable duty cycle that is used to approximate the input signal which is analog in nature. These amplifiers are highly efficient and have an efficiency of about 90%. This is so because the output transistors used are fully turned on/off in a normal operating. Use of this approach eliminates the need to use the transistor’s linear region that brings in inefficiency in the other types of amplifiers. Figure 1.4 shows a basic class D amplifier and a possible waveform. Since this class of amplifier has a high efficiency.