Soot Essay Example | Topics and Well Written Essays - 750 words

Soot - Essay Example The hydrocarbon fuel molecular constitution is associated with a six carbon atom types which might be obtained, for complex hydrocarbon mixtures, such as, transportation fuels, from the proton nuclear magnetic resonance (HNMR) measurements. Soot derived from ethanol, benzene, and acetylene have dissimilar reactivity and structural order. Soot is usually produced by combusting engines, flickering candle lights, and campfires. The process of soot formation is actually very challenging to comprehend and describe. However, with regard to the demand of for much lower particulate emissions an in depth understanding is absolutely necessary. Most types of combustion systems emit particles into the atmosphere that are a major hazard because of their toxicity to the human health, especially the cardiovascular and respiratory systems. The smaller particles less 100nm in size are regarded as the most hazardous. This is because they can penetrate deep into the lungs. The proposed project aims to determine the theory of formation, structure of (via image analysis) and impact of soot, as well as assess the differences between optical and electron microscopy. Soot comprises of agglomerates with a diameter of up to several hundred nanometers. They are made of fine structures that comprise of spherical primary molecules. Soot formation commences with the pyrolysis of fuel molecules along the formation of polcyclic aromatic hydrocarbons (Vander Wal & Tomasek, 2004). The most crucial precursor in the formation of higher hydrocarbons is acetylene (C2H2). Ladommatos and Balachndran (2011) assert that the molecular structure of various hydrocarbons influence soot formation. Gulder (2007) adds that the fuel structure also impact on the soot structure. Vander Wal and Tomasek (2004) showed that the soot particles that are generated by ethanol, benzene, and acetylene have different reactivity and structural order. Soot derived

Advances in Strategic Management Essay Example | Topics and Well Written Essays - 3000 words

Advances in Strategic Management - Essay Example The paper focuses on the major strategic issues that the company faces and also focuses on the problems that the company faces due to the strategic issues. Based on the previous history of the company and the current position of the company, a detailed analysis has been drawn out based on the various strategic models and theories. This helps in developing possible resolutions for the issues and also permits developing the possible challenges that the company might face due to the issues. The paper on the whole provides a clear and detailed analysis of Tesco Plc. and a thorough discussion of the strategic issues that the company currently faces. The next section will deal with a brief overview of the company and will discuss a little of the history of Tesco and the current position of the company. Tesco capitalized on this demand through a stock market flotation in 1947. This gave the company access to significant amounts of capital, which it used to rapidly buy up rival stores, removing the competition and also giving itself economies of scale to help dominate its market (Kotler and Keller, 2006). This acquisition based growth continued into the 1970s, when Tesco began strategically constructing new stores in an attempt to completely cover the UK. As part of this, Tesco also began to diversify, opening its first petrol station in 1974 and expanding into various non food operations. Founded in 1924, Tesco has indeed come a long way since its first-opened store in Burnt Oak, Edgware. Today, 79 years after it was founded by Sir Jack Cohen, TESCO is Britain’s leading food retailer. By the 1990s, Tesco started to developed new marketing concepts and strategies that gave focus on customer satisfaction. Among of its innovation was the introduction of the loyalty cards in 199 5. Tesco also now operates in 13 countries around the world, indicating that Tesco is willing to expand both its product and geographic range in order to grow sales