Analysis Of Rayleigh Step Bearings Biology Essay

Analysis Of Rayleigh Step Bearings Biology Essay According to importance and application of slider bearings in industries, investigation and analysis of this type of bearings are significant and inevitable issue. A widely used bearing type is the slider bearings with application in many cases such as different types of engines, compressors, turbines, electric motors and electric generators. To ensure that no contact occurs between the opposing surfaces, the dimensions of the bearing surface are chosen, such that a lubricant film of sufficient thickness is available under all operating conditions. The classical theory of hydrodynamic lubrication assumes that the inertia forces in the fluid film are negligible. For large bearings using low kinematic viscosity lubricant or for high speed, the inertia forces could be important. So the inertia terms should be entered in the calculations. This increases the accuracy of obtained responses and closes them to reliable results. Rayleigh bearing is designed in 1918 by Lord Rayleigh. He was first person who considered the concept of optimization design in lubrication applications and obtained an optimum design for an infinite-length stepped bearing by the use of a variation technique (Lord Rayleigh, 1918). Since then, there have been some studies on the characteristics of step bearings. Dowson (1962) introduced the generalized Reynolds equation, which allows for cross-film temperature variations. Then, this equation solved with realistic THD boundary conditions by Ezzat and Rohde (1973) using the finite difference method. Boncompain, et al. (1986) improved the numerical model by considering reverse flow, fluid-film rupture and elastic deformations (THD solution). Auloge et al. (1983) studied the optimum design of Rayleigh step bearing and determined the relationships between step location and height along with non-Newtonian lubricants. The same method was used by Fillon and Khonsari (1996) in tracing design c harts for tilting-pad journal bearings. Jianming and Gaobing (1989) have presented the optimum design of one-dimensional Rayleigh step bearing with non-Newtonian lubricants. Tello (2003) has theoretically studied the regularity of the solution to the Reynolds equation in Rayleigh step type bearings for both compressible and incompressible fluids by employing a rigorous mathematical approach. Besides, there are many research works in which the well known Reynolds equation was solved by different numerical schemes in predicting the lubricant pressure field in step bearings (Hideki, 2005; Dobrica and Fillon, 2005). Rahmani et al. (2009) comprehensively studied the Rayleigh step slider bearing including the effect of variations of pressure at the boundaries on the optimum parameters. The bearing is also optimized considering the lubricant flow rate, friction force and friction coefficient. In all of the above studies, the Reynolds equation was solve as the governing equation for calculation of lubricant pressure distribution in bearing lubricant flow. This equation is a simplified form of the momentum equation by neglection of fluid inertia terms. It is clear that under the condition of low lubricant viscosity and high runner surface velocity, this equation may lead to unreliable results. In the present study which a numeric one, the two-dimensional Navier-Stokes and energy equations are solved by CFD method with considering the variation of lubricant viscosity with temperature. By this technique the THD characteristics of Rayleigh slider bearings running under different steady conditions are explored. 2. PROBLEM DESCRIPTION The schematic and coordinate system of Rayleigh slider bearing is shown in Fig. 1. The bottom wall of the step bearing moves with constant velocity U (runner velocity). The sudden change in film thickness generates a hydrodynamic pressure field that supports an applied load W. At the inlet section, the oil film is entered at 40oC with combination of Poiseuille and Couette flows. The total length of the bearing is and the film thicknesses before and after the step location are and , respectively. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSgeometryasli.wmf Fig. 1: Sketch of problem geometry Two important geometrical factors in step bearings are (1) (2) In these explanations, and represents the bearing length ratio and the bearing height ratio, respectively, which are two important bearing geometrical factors. 3. THEORY 3.1. Governing equations For lubricant flow in bearings, the governing equations which are written for a two-dimensional, steady, incompressible, laminar and variable viscosity flow consist of the continuity, Navier-Stokes and energy equations. These equations in non-dimensional forms can be written as: (3) (4) (5) (6) Where and represent the dimensionless viscous source terms: (7) (8) And is the dimensionless viscous dissipation term: (9) Also the dimensionless oil viscosity based on Vogel equation can be calculated as follows: (10) In this expression, is the temperature-viscosity coefficient of the lubricant. The value of can is determined using two given viscosity values at and as follows (Khonsari and Booser, 2008): (11) In equations 3 to 9, the following non-dimensional groups are used: (12) In these definitions, is the thermal diffusivity of the lubricant and is the inlet lubricant viscosity. The main physical quantities of interest in lubrication study are the load capacity and friction force that can be computed using the lubricant velocity and temperature fields. The load capacity of the step bearing per unit width is obtained by further integration of lubricant pressure distribution on the runner surface as follows: (13) The friction force of the step bearing per unit width is calculated by the shear stress on the bottom wall as follows: (14) Where: (15) 3.2. Boundary conditions The entire domain is fully flooded, such that oil pressure at the inlet and outlet sections of the bearing is set to zero atmospheric gauge pressure. Also the no-slip condition is employed on all boundary solid walls. At the inlet section, oil enters into bearing with uniform temperature of and a specified velocity distribution which is a combination of the poiseulle and cuette flows whose pressure gradient is determined by numerical solution of the Reynolds equation. At the outlet section, zero axial gradients for all dependent variables are employed. Finally, the adiabatic condition is imposed on all of the bearing solid surfaces. 4. SOLUTION PROCEDURE Finite difference forms of the continuity, momentum and energy equations were obtained by integrating over an elemental cell volume with staggered control volumes for the x- and y- velocity components. Other variables of interest were computed at the grid nodes. The nondimensionalized governing equations were discretized by using the hybrid scheme and numerically solved by the SIMPLE algorithm of Patankar and Spalding (Patankar and Spalding, 1972). Numerical solutions were obtained iteratively by the line-by-line method progressing in axial direction. The iterations were terminated when the sum of the absolute residuals was less than for each equation. Numerical calculations were performed by writing a computer program in FORTRAN. mesh asli11 Fig. 2: A schematic of grid generation As shown in figure 2, the computational domain is divided into three blocks, each having Nx points in x-direction and Ny points in y-direction. The mesh is non-uniform in x- and y- directions, because the grid refinement around the step is necessary to capture the occurrence of the recirculation and other flow changes due to the sudden change in geometry. As the result of grid tests for obtaining the grid-independent solutions, an optimum grid is determined in grid study. Five different numbers of grid size inside the total rectangular computational domain including the blocked-off region with their related numerical results are listed in Table 1. According to this grid study, an optimum grid of 640120 is used in all of the subsequent test cases. Table 1: Grid independent study, Grid size Bearing friction force (KN/m) Bearing load capacity (KN/m) 45080 0.231 16.45 540110 0.217 17.17 590110 0.231 17.48 640120 0.239 17.51 680140 0.241 17.52 5. VALIDATION OF NUMERICAL RESULTS To test the validity of the present numerical results, computations were carried out for a test case and the computed results were compared with the theoretical findings by other investigators. The lubricant pressure distribution on the bottom wall and the temperature distribution on the top wall of the Hideki bearing (Hideki, 2005) are shown in Figs. 3 and 4, respectively. D:payanameThermohydrodynamic with subroutin.mesh moteghayervalidation with Ogata(temprature)Plot validation with OgataCJS.wmf Fig. 3: Lubricant pressure distribution on the bottom wall of the Hideki bearing (Hideki, 2005), The generated hydrodynamic pressure by the sudden contraction in flow domain is clearly seen in Fig. 3, such that at the entrance of narrow gap of the bearing, the maximum lubricant pressure occurs, and at the inlet and outlet sections, lubricant flow in at atmospheric pressure (zero gauge pressure). D:payanameThermohydrodynamic with subroutin.mesh moteghayervalidation with Ogata(temprature)Plot validation with OgataCJS temp.wmf Fig. 4: Temperature distribution on the top wall of the Hideki bearing (Hideki, 2005), Fig. 4 shows that the lubricant temperature increases along the flow direction because of the viscous dissipation in both domains upstream and downstream of the step. Such that, the rate of temperature increase in upstream region to the step is very greater than that is in downstream domain. It is due to this fact that the viscous dissipation in lubricant flow with small film thickness is high in comparison to lubricant flow with large film thickness. However, good consistencies are observed between the present numerical results with theoretical findings by Hideki (Hideki, 2005) about computations of both lubricant pressure and temperature distributions. 6. RESULT AND DISCUSSION In this research work, the THD characteristics of Rayleigh step bearings are obtained by numerical solution of the Navier-Stocks and energy equations using the CFD technique. An attempt is made for obtaining the effects of important parameters including the runner surface velocity, bearing length ratio and bearing height ratio on thermal and hydrodynamic behaviors of Rayleigh step bearings. All of the subsequent figures are about a Rayleigh step bearing whose properties and geometrical parameters are given in Table 2. Table 2: Bearing parameters and lubricant properties Parameters Units Values in present work b m 0.08-0.12 h1  µm 480 U m/s 10-30 Tin 40 Ï  860 Cp 2000 Kf 0.13  µ at 40 C 0.03  µ at 100 C 0.0045 0.28-0.98 1.2-2.5 First the oil flow pattern inside the bearing is shown in figure 5 by plotting the fluid velocity vectors. The adverse pressure gradient in the upstream flow domain before the step location which leads to hydrodynamic pressure generation causes a concave shape for velocity distribution. Such that the velocity distribution changes to convex shape after the step where there is a favorable pressure gradient. Behind the step surface near to the stationary wall, a circulated flow domain happens which is due to the effects of both viscous friction and positive pressure gradient in this region. As another result that can be seen from Fig. 5, one can notice to almost stationary flow region in block 1 (see Fig. 2). Therefore, the lubricant average velocity across blocks 2 and 3 remains approximately constant. C:UserszahraDesktopUntitled.png Fig. 5: Velocity vectors in step bearing lubricant flow, In Fig. 6, the lubricant pressure distributions along the bottom wall at five different values for the runner surface velocity are shown. It is seen that the velocity of moving surface has considerable effect on the value of generate hydrodynamic lubricant pressure, such that oil pressure has an increase trend by increase in velocity under a unique pattern. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of PKcompare of speed runner.pkspeed runner.wmf Fig. 6: Effect of runner surface velocity on lubricant pressure distribution along the bottom wall, A similar study is done for investigating the effect of runner velocity on thermal behaviour of step bearing in Fig. 7. It is seen in this figure that bearings with high runner surface velocity operate under high temperature condition. Besides, it is depicted in Fig. 7 that in both domains before and after the step, lubricant temperature increases along the flow direction because of the viscous dissipation. Also, it is seen that the oil temperature at the outlet section is affected strongly by the runner velocity, such that the bearings with high velocity have high temperature lubricant flow at their outlet sections. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of TPcompare speed of runner.TpTshaftTshaft.wmf Fig. 7: Effect of runner surface velocity on lubricant temperature distribution along the bottom wall, D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of PKcompare of epsilonepsilon.wmf Fig. 8: Effect of bearing length ratio on lubricant pressure distribution along the runner surface, The lubricant pressure distributions along the runner surface at four different values of the bearing length ratios are illustrated in Fig. 8. It is evident that the location of maximum pressure moves toward the downstream side by increasing in bearing length ratio, because the step location moves toward this sense when increases. Besides, it can be found from Fig. 8 that there is an optimum value for bearing length ratio to obtain the most value for lubricant maximum hydrodynamic pressure. It is depicted in Fig. 8 that this value for bearing length ratio in this test case is. Therefore, is an important parameter in step bearings that has great effects on lubricant pressure and consequently in bearing load capacity. The effect of bearing length ratio of thermal behavior of step bearing is studied in Fig. 9 by plotting the lubricant temperature distributions on the runner surface for bearings with different length ratios. This figure shows that the effect of on temperature distribution is less than its effect of the hydrodynamic lubricant pressure. However, this figure depicts that bearings with length ratio greater that run cooler than the bearings with small less than. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of TPcompare of epsilonCompare Tshaft of epsilonTshaft.wmf Fig. 9: Effect of bearing length ration on lubricant temperature distribution along the runner surface, The variations of lubricant maximum pressure and temperature with bearing length ratio are presented in Fig. 10. This figure reveals the same trends for THD characteristics of step bearing those have been shown in the previous figures. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Epsilon moteghayer(W.F.eta.etam)compare of ep.P.T.wmf Fig. 10: Variations of lubricant maximum pressure and lubricant maximum temperature with bearing length ratio, In order to study more about the effect of bearing length ratio on THD characteristics of step bearings, the variations of bearing load capacity and friction force with are plotted in Fig. 11. This figure presents that there is a maximum value for load capacity that takes place at =0.718. Besides, it is revealed from Fig. 11 that in bearings with high length ratio, low friction force exists in comparison to bearings with small values for . D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Epsilon moteghayer(W.F.eta.etam)compare of ep.w.f.wmf Fig. 11: Variations of load capacity and friction force with bearing length ratio, Similar study is also done for investigating the effect of bearing height ratio on THD characteristics of step bearings by plotting the lubricant pressure and temperature distributions and also the variations of load capacity and friction force with various values of the parameter . According to Figs. 12 and 13, it is revealed that the values of lubricant pressure and temperature increase by increasing in bearing height ratio. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of PKcompare of ksiksi.wmf Fig. 12: Effect of bearing height ratio on lubricant pressure distribution along the runner surface, D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of TPcompare of ksiCompare Tshaft of kesiTshaft.wmf Fig. 13: Effect of bearing height ration on lubricant temperature distribution along the runner surface, This behavior is also presented by Fig. 14 in which the variations of maximum lubricant pressure and temperature are plotted with bearing height ratio. It is seen that both and have increasing trends with increase in the value of , such that the rate of increase in maximum temperature is greater than that is in maximum pressure. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Kesi moteghayer(W.F.eta.etam)compare of ksi.P.T.wmf Fig. 14: Variations of lubricant maximum pressure and lubricant maximum temperature with bearing height ratio, Fig. 15 shows a similar trend for bearing load capacity and friction force with the variation of height ratio. Such that it is seen in this figure that both load capacity and friction force increase with increasing in bearing height ratio. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Kesi moteghayer(W.F.eta.etam)compare of ksi.W.F.wmf Fig. 15: Variations of load capacity and friction force with bearing height ratio, In the following figures, an attempt is made to verify the influences of bearing length, b, on the THD characteristics of step bearings. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTScompare of PKcompare of length bearingcpmpare b.wmf Fig. 16: Effect of bearing length on lubricant pressure distribution along the bottom wall, D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Lenght moteghayer(W.F.eta.etam)TshaftTshaft.wmf Fig. 17: Effect of bearing length on lubricant temperature distribution along the bottom wall, It is seen from Figs. 16 to 19 that in long bearings, the values of lubricant pressure and temperature and consequently the amounts of maximum pressure and temperature are high that leads to have high bearing load capacity and bearing friction force. D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Lenght moteghayer(W.F.eta.etam)compare of length.p,T.without point.wmf Fig. 18: Variations of lubricant maximum pressure and lubricant maximum temperature with bearing length, D:payanameThermohydrodynamic with subroutin.mesh moteghayerPLOTSplot Lenght moteghayer(W.F.eta.etam)compare of length.w,f.without point.wmf Fig. 19: Variations of load capacity and friction force with bearing length, 7. CONCLUSION This paper deals a numerical study for investigating the THD characteristics of Rayleigh step bearings running under different steady conditions. The set of governing equations consisting of the Navier-Stokes and energy equations is solved by the CFD technique and the variation of lubricant viscosity with temperature is also considered into account. This mathematical model and numerical method lead to more accurate numerical results in comparison to those obtained before by other investigation with numerical solution of the Reynolds equation that neglects the fluid inertia terms. It is found that the thermal and hydrodynamic behaviors of step bearing are affected considerably by the runner surface velocity and the bearing geometrical factors. Nomenclature B bearing length dimensionless velocity components upstream bearing length load capacity of bearing downstream bearing length horizontal and vertical coordinates Cp heat capacity dimensionless coordinates friction force of bearing upstream film thickness Greek symbols downstream film thickness friction coefficient step height modified friction coefficient Kf thermal conductivity dynamic viscosity width of bearing dimensionless dynamic viscosity origin of coordinate  µ1 dynamic viscosity at pressure  µ2 dynamic viscosity at pressure at the inlet kinematic viscosity pressure at the outlet density dimensionless pressure shear stress Pr Prandtl number Pe Peclet number Subscripts Re Reynolds number fluid Temperature inlet Tin inlet temperature maximum dimensionless temperature surface runner velocity velocity components

Cloning: An Option for Endangered Species Conservation Essay -- Biolog

Cloning: An Option for Endangered Species Conservation Review of the Literature Geneticists know that the technology of cloning lies in the palm of their hands, and its use on domestic animals and now endangered species has already proven successful (â€Å"Endangered Species†; Fields-Meyer and Seaman;Holt et al.; Lanza et al.; Trivedi). The question I ask now is this: Will cloning be used in the conservation of endangered species? This very question has sparked debate between the scientific community and many conservationists. Contrary to the values set forth by many conservationist groups, my research suggests that the cloning of endangered species is, in fact, a viable option in their preservation and repopulation. Most of the sources I have used in my research have supported the idea of using cloning to rebuild animal populations or at least obtain viable DNA from endangered animals. The prominent scientists Betsy Dresser, Robert Lanza, and Philip Damiani of the Advanced Cell Technology laboratories in Worcester, Massachusetts, expressed their optimism about cloning endangered species in the article "Cloning Noah's Ark." Dresser and Lanza were also quoted in several online news sources I used as well. They conclude that "Biotechnology might offer the best way to keep some endangered species from disappearing from the planet" (Lanza et al). As my research suggests, cloning endangered species will surely have its benefits in keeping these populations alive, an option which conservationists cannot deny. These scientists I have mentioned do not ignore opposition to their scientific claims from conservationists skeptical of the uses of cloning and leery that it usage will deter humans from restoring natural habita... ...://www.reproduction-online.org.silk.library.umass.edu:2048/cgiLcQntent/ full/127/3/317>. Lanza, Robert P., Betsy L. Dresser, and Philip Damiani. "Cloning Noah's Ark." Scientific American 283 (2000). Academic Search Premier. 22 Oct. 2005 &db=aph&an=3664004>. Ryder, Oliver A. "Cloning advances and challenges for conservation." Trends in Biotechnology 20.6 (June 2002): 231. Academic Search Premier. EBSCO. DuBois Library, Amherst, MA. 22 October 2005 rect=true&db=aph&AN=7799659&site=ehost-live>. Trivedi, Bijal P. "Scientists Clone First Endangered Species: A Wild Sheep." National Geographic News. 29 Oct. 2001.14 Oct. 2005 1/10/1025 TV sheepclone.htm>.

Explain How Practices That Support Equaity and Inclusion Reduce

Amanda Hopwood Cache Level 2 in Diploma in Children’s Care, Learning and Development Pin/Enrolment Number – 30169038 ULN – 6939676189 Assessor – Jennifer Hughes Assurer – Helen Tweddle SHC 21 Introduction to equality & inclusion in health, social care or children 7 young people settings 1. 1 –Explain what is meant by: Diversity – means is to understand that each child/young person is individual, unique and different i. e. , it could be the differences in race, heritage, customs, beliefs, physical appearance, mental capability.Diversity should be valued and respected as each person are completely different to any other person, even in the examples I have stated above. We need diversity as is gives us different views and opinions. We must value our diversity so we can work together to live a happy life. Equality – means to give all children/young person equal opportunities to achieve their best in the setting. Each child is differ ent so you have to respect that. Some children might need support. You can do this by planning ahead to achieve all aspects of learning and development for all children irrespective of disability, heritage etc.It's about getting the balance between each child. Inclusion – means to ensure all embodies such as children and their families have the right support regardless of their ability to take part in a range of activities in the setting. Inclusion is the process of making this happen. to do this in the setting you must take away all barriers and give each person a warm and welcoming attitude whilst in setting. Discrimination – means a child/young person is treated differently because of their membership such as race, colour, gender, religion, ancestry, origin, disabilities.It involves excluding or restricting child/young person in a membership from opportunities that are available to other children/young person. Children may experience discrimination because of their colour, culture/religion, impairments, gender, race, size because they are disabled or have special educational needs. Children who are discriminated may feel undervalued and may lose confidence. They may find others will have a low expectations of what they can achieve. Others might assume they cannot do an activity as they can't cope.

Characterization and Irony in Pride and Prejudice Essay

Characterization and Irony in Pride and Prejudice Like all true literary classics, Pride and Prejudice by Jane Austen is still capable of engaging us, both emotionally and intellectually (Twayne back flap) through its characters and themes. This essay illustrates how Jane Austen uses the characterization of the major characters and irony to portray the theme of societal frailties and vices because of a flawed humanity. Austen writes about the appearance vs. the reality of the characters, the disinclination to believe other characters, the desire to judge others, and the tendency to take people on first impressions. The main female protagonist, Elizabeth Bennet, like many in society, appears perfect, but is in fact†¦show more content†¦In this particular novel it almost cost a lifetime friend. Society is made up of the individuals in it, and since no individual is perfect for instance Elizabeth, society is flawed. Also, Elizabeths perception of Mr. Wickham is incorrect (Molar 25). She thinks he is, and he does appear to be, a perfect gentleman on the outside because of the way he portrays himself, but really, he is one of the most flawed characters in the novel. Elizabeth is completely taken in by the almost transparent duplicity (Moler 25) of Mr. Wickham, especially when he speaks. A thorough, determined dislike of me, a dislike which I cannot but attribute in some measure to jealousy. Had the late Mr. Darcy liked me less, his son might have borne with me better; but his fatherÕs uncommon attachment to me, irritated him I believe very early in life. He had not a temper to bear the sort of competition in which we stood, the son of preference which was often given me (Austen 72), Mr. Wickham speaks with eloquence and Elizabeth takes it for face value, and believes everything he says. If what he says is true, problems do not arise, but what he says is false and is in fact hurtful to another man, Mr. Darcy. 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Sociocultural Theory Essay - 1633 Words

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Conflict Theory - 1217 Words

According to Conflict Theory, society is: †¢ A struggle for dominance among competing social groups (classes, genders, races, religions, etc.). When conflict theorists look at society, they see the social domination of subordinate groups through the power, authority, and coercion of dominant groups. In the conflict view, the most powerful members of dominant groups create the rules for success and opportunity in society, often denying subordinate groups such success and opportunities; this ensures that the powerful continue to monopolize power, privilege, and authority. You should note that most conflict theorists oppose this sort of coercion and favor a more equal social order. Some support a complete socioeconomic revolution†¦show more content†¦Highly-paid positions are not necessarily most important for society, they argue, but keep power in the hands of the privileged and powerful. Applications Education McLeod’s â€Å"Ain’t No Makin’ It† is a good example of conflict theory as applied to education. He argues that teachers treat lower-class kids like less competent students, placing them in lower â€Å"tracks† because they have generally had fewer opportunities to develop language, critical thinking, and social skills prior to entering school than middle and upper class kids. When placed in lower tracks, lower-class kids are trained for blue-collar jobs by an emphasis on obedience and following rules rather than autonomy, higher-order thinking, and self-expression. They point out that while private schools are expensive and generally reserved for the upper classes, public schools, especially those that serve the poor, are underfunded, understaffed, and growing worse. 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The Role of Information Technology Enterprises in Kosova

Question: Describe about The Role of Information Technology for Enterprises in Kosova. Answer: Executive summary In recent decades, there has been a vast expansion in technological capabilities that have resulted into changes in patterns of human communication. Advances in information technology have hugely impacted various industries resulting into structural transformations. Modern businesses cannot survive without the use of information technology(Berisha-Namani, 2009). Information revolution has also affected Media industry in a huge way. It has made the process of broadcasting information fast such that the information can be sent to the world in the flash of a second. New formats and channels have emerged in the field that has moved to video visuals, e-papers, animations and so on. The continual changes in the technological advances and their impacts on different cultures have dissolved the geographical barriers allowing businesses to be more interconnected to the world. With such capabilities provided by information technology to the media industry, if a media organization ignores the need of adoption of IT, it is unlikely to survive in the mid of technologically advanced business models in the world(Khattak, Nasir, Sultan, 2012). Introduction Fairfax Media is an Australia and New Zealand based company which performs the functions of media in various multiple platforms. It is a company which provides various services such as digital publishing, digital marketing, entertainment, etc. This company is well known for its quality content for more than 180 years. There are various newspapers named as The Sydney Morning Herald, The Age, The Press, The Sunday Star-Times, etc. It is also associated with Macquarie Radio Network and an Entertainment Co, StreamCo. So, the analysis explains how the information technology affects the media field. IT Implementation in Media When an organization need to develop its IT systems, the process usually begins with the investigation of existing systems of the company. In this stage, first the opportunities for implementation of IT to attain business objectives would be identified and the appropriate system requirement would be recognized. Thereafter, a feasibility study is done in order to understand if the desired IT capabilities that are being planned for implementation and only after the project of IT system development is found viable can procurement and implementation begin. A major part of the work identification of functional requirements of an organization such that decisions can be made on development of appropriate systems for the organization. Based on these requirements decisions can be taken on deployment of IT systems. Various activities that have to be done for fulfilling these functional requirements would include understanding of costs, planning for development of IT infrastructure, designing, procurement of equipments, installation of systems and training of users on the new IT systems. An IT architecture for Media company can be built with consideration of three layers of IT that include business architecture that includes understanding of business needs , data models and flow diagram for processes, application architecture that includes software and other applications and technical architecture that includes hardware and other tools. The business model would explain processes that are to be captured by the IT system as well as the functional or business objectives that IT would be catering to such that decision can be taken on what applications to acquire. Use of IT in Media Information Technology is being widely used in Media Industry nowadays as the world is becoming digital. The uses of Information Technology in Media Industry are as follows: Journalism on Internet: It is obvious that many employees or workers who work for the whole day and hardly get the time to read the newspaper, Internet Journalism helps them by providing the news on internet only. Likewise, Fairfax Media is helping people by providing them these facilities. It also helps in reducing cost as it saves the cost of paper by delivering them news online which helps both producer and the consumer. Even there are many applications through which users do not need to even open the application for reading news, they just get notification for every breaking and latest news. Animation: Animation is done in media industry so that people who watch the news or some updates may enjoy it more with the help of visual effects that make it look attractive and interactive. So, animation also plays an important role in Media Industry. Saves Money: Since only few people buy newspaper nowadays, because they remain updated by more of internet and media. Therefore, it also helps in saving money to buy newspapers. Editing Softwares: There are lot of editing software which helps in printing the news or related articles in a better way and various features are provided by those software which also helps to perform the task rapidly and in a better way. Live Events: There are various types of events that take place almost daily and almost everywhere. Information Technology helps the event companies to advertise about their event and even provides the functionality to audience to book their tickets online or to know about the event in the detail by creating forums or groups on social media. Fairfax Media also organizes the life and media events. Advertising: Advertising is the important method for expanding the business. Advertising is done with the help of Information Technology which helps the users to know about the business. Fairfax media is also involved with advertising. Radio Network: One of the important source of media is Radio Network which broadcasts many details related to education, daily life, news, entertainment and much more. Earlier, people used to face difficulty in catching the signal of radio but Information Technology has greatly helped to erase this problem. Even, few companies provide the facility of internet radio i.e. radio can be accessible on the web also. Fairfax media has also its 54.5% share involved in ASX-listed Macquarie Radio Network which is operated in Sydney and Melbourne. Requirements of Information Technology in Media Hardware: Hardware is an important component which is required almost in every field. Hardware devices like computer, printers may be widely used in media field. Computers are used for managing the reports or news by editing them or creating them. Printers are required to publish that news in the newspapers, journals or other resource of the media. Software: software is also an important component because everything is done with the help of software whether updating the news, or writing the reports and news or adding animation effects to the news etc. Training: Proper training should be provided to the staff of media or editors about the software used in a company so that proper formatting and editing could be done and much of the time is not wasted in formatting the reports again and again. Social Media: Social Media is also one of the most important requirements as there are millions of people in the world who use the social media. So, social media helps in awaking the people about the importance of media. Usage of Information Technology by Media It is important to know who makes use of media and how. So, the people who makes of Information Technology in Media are described below: Editor: Editor is a person who is responsible for writing the various articles. So, he/she makes use of Information Technology for many purposes such as searching for the article on internet, writing the report, editing the report, uploading the article etc. Radio staff: Staff of radio also makes use of Information Technology to raise their voice to the public by making use of various recording softwares, jamming softwares etc. Users or Audience: Audience makes use of Information Technology to access the media and media resources. Benefits of bringing Information Technology in Media Reduced Effort: IT helps in the reducing the effort for media. For e.g., earlier, editors used to write the articles using pen and paper and then they used to type everything on typewriter. But the introduction of Information Technology has made it easier because they do not need to write on paper, they can just simply write in computers using various softwares which are optimized. Updated Society: Information Technology helps in making the society updated as media can be accessed anywhere at any time. No one has to wait for particular time to switch on the news channel or other media related channels as IT has made it easy for everyone. Digital marketing: Information Technology leads the Digital Marketing to grow more and more as media is highly involved with advertising and digital marketing as the world is becoming digital. Risks brought by Information Technology in Media Leakage of information on media/communication: As information technology has made the lives faster, so usually a information is broadcasted to everyone so rapidly that everyone gets to know about it in less than a minute which leads to leakage of information, usually fake information on media or communication. So, it is important to check that use of media is done properly. Piracy: Piracy is an act of obtaining or stealing the legal copyrights of a company. Piracy affects mainly the software, music, movie, gaming industries also. Therefore, media is highly affected by the Piracy attack on the legal information. Maintenance and Monitoring by Media It is important that media should monitor and maintain everything. Monitoring is an activity in which output of print, online and broadcast media are monitored and checked. In business field, media monitoring performs various functions such as systematic recording of radio and television broadcast, checking print clippings from various print media publications. Monitoring the online consumer resources such as blogs, social networks, articles and forums is known as buzz monitoring. Social media should also be monitored so that a particular company could know about its status and value by gathering positive or negative comments. Monitoring of media is usually done by high speed text scanners, video and audio recording, text recognition software, analysts etc. Automation of all these processes can be achieved with the help of data mining and machine learning methods. Recommendation It is recommended in this analysis of a media company that risks can be easily dealt with the proper monitoring of blogs, articles, and forums. Proper monitoring of radio and television broadcast must be done. To overcome this risks, various techniques such as data mining, sentimental mining, text mining and various machine learning methods can be applied. Conclusion This report explains about the use of Information Technology in the media company Fairfax Media. In this report, various aspects such as use of information technology, benefits of using information technology, usage of information technology, risks associated with IT, etc. are discussed. Bibliography Berisha-Namani, M. (2009). The Role of Information Technology in Small and Medium Sized Enterprises in Kosova . Fulbright Academy . Khattak, A. W., Nasir, M., Sultan, D. K. (2012). The Role of Information Technology in Media Industry. International Journal of Business and Social Science, 259-266.