Identity Formation and the Bordelandsof Self Essay

Identity Formation and the Bordelandsof Self - Essay Example g thought-provoking complicated autobiographical work that has significantly led to the construction of Chicana and â€Å"mestiza† collective identity. The author narrates her experience of spiritual awakening and growth as well as her introduction to self knowledge. This experience is not for her consumption alone. The author also delineates the social implications of spirituality as a source of power for all Chicanas. Anzaldua’s concept of spirituality is central to â€Å"la mestiza’s† cultural experience defined by the borderlands. Let us now asses the relevance of the concept of â€Å"borderland†. Literally, the term refers to the borders between Mexico and the United States. The term â€Å"border† brings to mind the war between these tow countries which culminated in the annexation of Texas to the US in the 19the century. This annexation, ironically, has resulted in the Chicanos becoming second-class citizens in their own country. Gringos in the US Southwest consider the inhabitants of the borderlands – transgressors, aliens, whether they possess documents or not, whether they are Chicanos, Indians or Blacks. Do not enter; trespassers will be raped, maimed, strangled, gassed, shot. The only â€Å"legitimate† inhabitants are those in power, the whites and those who align themselves with whites. Consider the plight of Pedro, a Chicano in the following extract from Anzaldua’s text: â€Å"In the confusion, Pedro ran, terrified of being caught. He couldn’t speak English, couldn’t tell them he was fifth-generation American. Sin papeles – he did not carry his birth certificate to work in the fields La Migra took him away while we watched. Se lo llevaron. He tried to smile when he looked back at us, to raise his fist. But I saw the shame pushing his head down. I saw the terrible weight of shame hunch his shoulders.† The term â€Å"borderland† in Anzaldua’s work points to the strict boundaries that Western thought has laid down in the

Effect of Cosmetic Marketing on Consumers individual self image Dissertation

Effect of Cosmetic Marketing on Consumers individual self image - Dissertation Example A review of the recent literature shows that the cosmetics industry is at the forefront of marketing innovations and this study explores exactly what effects this marketing activity is having on the self-image of consumers. 1.2 Body, Self and Image. It has long been recognised that the way people use certain products helps them to build a concept of self (Grubb, 1967; Sirgy, 1982; Malhotra, 2002). Psychologists have noted that people seek to maintain more than one version themselves. (Adler, 1930) This is very evident in choice of clothing, for example, which people use to align themselves to peer groups, work contexts and so on, and when they adapt to different situations. There are also many products which people use in private and no one else knows that this product is being used. These two situations may connect with what psychologists call â€Å"ideal self† and â€Å"real self† (Dolich, 1969 ) or â€Å"public self† and â€Å"private self.† (Baumeister , 1986) Studies show that what people buy has symbolic as well as literal meanings for them, and by choosing some products over others, consumers are choosing to bolster one or other aspect of their own personality. (Dittmar, 1992) For women especially there are extra pressures to maintain a positive body image because the patriarchal culture that still exists in Western societies values youthful and healthy appearance in women much more than in men. (Woolf, 1991; Gimlin, 2002) As women at the start of the twentieth century increasingly took part in the public world of work, the cosmetic industry played its part in building expectations of increasing artifice in the construction of a public image for women. (Peiss, 1990) Now, at the start of the twenty first century, in a less overtly sexist society, the process appears to be extending still further into the domain of masculinity, and the marketing of cosmetics for men is growing exponentially. (Mintel, 2008) 1.3 The Cosmetics Indus try and Self Image. The cosmetics industry is intimately connected with consumers’ idea of self. to modern approaches like â€Å"Guerrilla Marketing† (Levinson, 2007) which advocates low budget persistence before, during and after a sale. â€Å"Digital Marketing† or â€Å"emarketing† (Parkin, 2009) extols the advantages of new technologies. The concept of â€Å"sticky marketing† rejects old adages like the unique selling proposition or USP because of the proliferation of almost identical products in modern society, and requires instead that â€Å"the focus move from transactions to customer engagement.† (Leboff: . p. 92) All of these have relevance in the fashion-conscious area of cosmetics marketing. It is no coincidence that some of the most psychologically sophisticated campaigns in the history of marketing come from this branch. L’Oreal Group’s long running series of haircare advertisements, for example, which ran the sloga n â€Å"Because you’re worth it† successfully bound their product to the consumer’s feeling of self-worth, creating a memorable message that has become part of the English language. The focus in these advertisements is on the effect which the product has on the consumer’s mind, more than the body, and this is a clever twist that flatters the consumer and seems to sell the product incidentally. This campaign which ran at the start of

The novel Lord of the Flies Essay Example for Free

The novel Lord of the Flies Essay Imagine being on a deserted island with no rules, no civilization, nothing besides the need to survival. The novel Lord of the Flies by William Golding and the short story The Most Dangerous Game by Richard Connell are two fictional stories that deal with this concept, exploring the behavior of humans in such a primitive, unstructured environment. In both stories, a distinct division develops between hunters and the hunted, and while each story conveys and focuses on slightly different aspects, the two stories more importantly share the same fundamental view on the overall, underlying theme in regards to human nature. In The Most Dangerous Game, general Zaroff is the hunter. As the title of the short story implies, hunting is a fun and thrilling game to Zaroff. His cunningness and his natural instinct for hunting led to his many successes as a hunter because as he said himself, The animal had nothing but his legs and his instinct. Instinct is no match for reason' (Connell, 47). Using his instinct and reason, the hunter in this short story demonstrates an exceptional super ego. However, his instinct is evil. With his superiority to animals, Zaroff was no longer satisfied with hunting animals, so he progressed to killing other animals with both instinct and reason-humans. His disregard for human life shows Zaroffs twisted nature. During his hunt of the human Rainsford, Rainsford thought: Only the devil himself could follow that complicated trail through the jungle after dark. But, perhaps, the general was a devil (Connell, 54). Throughout the book, this being an example, Connell alludes to the evilness of Zaroffs character. Zaroffs mind and his nature illustrate him as cunning, but corrupt person. The group of hunters in Lord of the Flies also becomes animalistic and savage. At one point, Ralph too was fighting to get near, to get a handful of that brown, vulnerable flesh. The desire to squeeze and hurt was over-mastering (Golding, 115). Even Ralph, who is considered to be more mature and civilized than the others, became caught in the thrill of the hunt. This is because in Lord of the Flies, the hunters completely lose their identity and sense of reason when they hunt, relying purely on their instinct. The evil actions of the hunters when theyre following their instinct show how humans are evil in nature. Despite the hunters brave act and their domination over the island, they all fear the unknown Beast. Jack, the head of the hunters, describes it as a dark thing, a beast, some sort of animal. (Golding 89) The Beast, which is given a physical form as the pig head and as Lord of the Flies, symbolizes the Devil that is within all the hunters and the human race in general. In this aspect, the state of mind of the hunter is Lord of the Flies is similar to The Most Dangerous Game because both stories suggest that humans are primitive and evil in nature. The hunters in both stories enjoy killing, starting with animals and moving on to humans. However, Zaroff also does not seem to fear anything, unlike the boys in Lord of the Flies who fear the Beast. Zaroff also uses his mind a lot more than the boys who completely lose their sense of reason once they become entranced by the hunt. In a sense, Zaroff is the more terrifying one because he reasons that it is completely acceptable to kill humans, whereas the boys mindlessly kill. If there are hunters, then there must be the hunted. At the beginning of The Most Dangerous Game, Rainsford expresses his attitude towards hunting in his conversation with Whitney: Great sport, hunting. The best sport in the world, agreed Rainsford. For the hunter, amended Whitney. Not for the jaguar. Dont talk rot, Whitney. (Connell, 39) Ironically, later on in the story, Rainsford is the one being hunted. His attitude towards hunting changes. He acknowledges that animals feel terror, having played the fox (Connell, 54) himself. When being hunted, Rainsford felt panic and dread and knew the full meaning of terror (Connell, 55). Even though Rainsford had previously hunted and been in the war, it was different to be hunted. He would do anything to stay alive. Rainsford fights to keep his nerve throughout the hunt, but taken over by fear, his instinctual, animal side surfaces. At one point during the hunt, Rainsfords impulse was to hurl himself down like a panther (Connell, 54) even though his reason told him not to. His instinctual act of jumping into the sea and then proceeding to kill Zaroff saves him in the end. Like Zaroff, Rainsford uses both his mind and instinct-his super ego. Originally a hunter, Rainsford finds himself on the other side as the animal in fear, using his wit and instinct to overcome the hunter. In Lord of the Flies, Ralph also becomes trapped in a situation being hunted by others. Through his fear, Ralph tries to devise a rational plan, but he was beginning to dread the curtain that might waver in his brain, blacking out the sense of danger, making a simpleton of him (Golding, 196). Ralph fears losing his reason, and he fights to keep his reason while all the other boys lose theirs. There are moments where Ralph loses it, particularly near at the end of the novel. When being hunted by the savages, Ralph becomes hysteric with fear: Dont scream. Youll get back Ralph screamed, a scream of fright and anger and desperation He swung the stake and the savage tumbled over (Golding, 199). With his life in danger, he forgot his wounds, his hunger and thirst, and became fear (Golding, 200). Previously sheltered from danger, Ralph did not know true fear until he became exposed to evil on the island and realized the evil the hunters are capable of. When pushed into a corner, Ralphs panic and his need to survive made him act on instinct, becoming like a savage as a result because humans are evil by instinct. In both The Most Dangerous Game and Lord of the Flies, the hunted initially start out as hunters. The quick turn of events demonstrates how fragile status can be based on differences in reasoning and power. Although Rainsford and Ralph try to keep their nerve, they experience terror and desperation when their life is in danger. Instinct shows dominance when the prey is in fear, and as a result of the need to survive, the hunted commit animalistic acts to defend against the evil hunters. The incorporation of hunters and the hunted contributes to the theme of humanity in The Most Dangerous Game. The story suggests the idea that the world is made up of two classes-the hunters and the hunted (Connell 40). It is because of this division that fear, struggle for survival and power exists, bringing out the worst in humans. Humans are degraded to the level of animals in The Most Dangerous Game. In Zaroffs point of view, a thoroughbred horse or hound is worth more than (Connell 49) the human scum of the earth (Connell 49). Zaroffs heartless view of humans illustrates his evil nature. In his regard, humans are essentially all animals with reason, and like all animals, humans in their simplest form feel fear. Whitney contradicts Rainsfords belief that animals have no understanding: I rather think they understand one thing-fear. The fear of pain and the fear of death (Connell 39). Fear is a primal instinct that everyone harbors. Put into an unstructured environment, fear brings out the worst in humans. It causes people to lose their nerve and act instinctively without thought. In humans, fear of death brings out the raw need to survive. In the short story, Rainsford was willing to do whatever it takes to ensure his survival, even if it meant killing his pursuers. The hunted sink to the same level as the hunters because it is kill or be killed. This shows how human nature is evil, selfishly treating others to fulfill their own desires. The Most Dangerous Game suggests that the bad nature of humans surface when engulfed by fear. Lord of the Flies also contains a message regarding humanity. In his novel, Golding advocates that humans all feel fear. A concrete example of this is shown in the novel where the boys fear of the Beast tears them apart. As discovered when the Beast addresses Simon, Fancy thinking the Beast was something you could hunt and kill You knew, didnt you? Im part of you? Close, close, close! Im the reason why its no go? Why things are what they are? (Golding, 143) Tainted with fear, the evil nature in humans grows. The desire for power is also an aspect of human nature that separates people. There is a conflict of power between Jack and Ralph, and as a result, a division occurs between the boys. The fact that most of the boys choose Jacks authoritative power over Ralphs democratic power shows how humans respond better to fear and brutality rather than rules and reasoning. Even though the boys have their own system of power on the island, their own rules are very much different from the rules of the civilization they came from. As the story progresses, the influence of the civilizations rules decrease and the savagery of the boys increase. For example, at first when Roger was throwing rocks, there was a space round Henry, perhaps six yards in diameter, into which he dare not throw. Here, invisible yet strong, was the taboo of the old life (Golding 62). Lord of the Flies stresses how civilization protects the innocence of humans, preventing them from being exposed to the evil nature of humans. The evil nature of humans is brought out by fear in both The Most Dangerous Game and Lord of the Flies. There is a struggle survival in both stories, although as the boys in Lord of the Flies lose their sense of reason, they dismiss being rescued, and their attention is more focused on the conflict of power and hunting. Both stories are set on an island away from civilization where havoc activities occur, but the need for civilization is emphasized more in Lord of the Flies. While there are these minor differences, the underlying message about humanity is the same-human nature is bad. The Most Dangerous Game conveys this message by representing humans as animals acting instinctively to survive, and Lord of the Flies emphasizes the message through the symbol of the pig head being the Devil. In the end, both stories effectively express the idea that humans are evil in nature. The Most Dangerous Game and Lord of the Flies are two stories that both include the components of the hunters, the hunted and a message about humanity. While there are differences within these elements, the overall moral about humanity remains the same in both stories. That is, that human nature is bad. Implementing the hunters and the hunted emphasize this idea. Connell and Golding share a similar vision. Humans stuck on an island with no rules is not a good idea. Bibliography Connell, Richard. The Most Dangerous Game. Currents in Fiction. Virginia: McGraw-Hill, 1984. Golding, William. Lord of the Flies. Philadelphia, PA: Chelsea House, 1999. Print.

Using Pneumatic And Hydraulic System Engineering Essay

Using Pneumatic And Hydraulic System Engineering Essay Automation is the integration of mechanical, computer electronic based activities the control of manufacturing processes in the field of production. Different techniques of automation are carried using pneumatic, hydraulic system, cam follower computer system. In this project of automation of burr cleaning process, I have selected and implemented the pneumatic technique of automation. For automation, I have designed manufactured air blowing machine, which is operated with the help of pneumatic system controlled by PLC. In this mechanism the DLL nozzle is run over the guide way clamp by pneumatic cylinder. Then the air pressure of 5 bars is supplied to the tip of nozzle through jet which cleans the burr form nozzle ball end. I assembled air blowing machine with pneumatic cylinders for clamping, unclamping, supporting individualizing purpose, proximity sensor other necessary components. In this automation of air blowing machine I studied different types of machining processes, pneumatic system, and PLC system. After automation of air blowing machine the working stress on operator is reduced the production rate is substantially increased with improvement in quality of burr cleaning process. Chapter 1 : Introduction This project identifies and describes the automation process used to clean and deburr the nozzle which is present in fuel injection system, through the working of Air blowing machine. Air blowing machine uses different concepts of automation such as pneumatic, hydraulics, cam-follower etc. The main function of this machine is to control manufacturing process in production. 1.1.Background Nozzle is one of the vital component in any fuel injection system which is attached to the nozzle holder. It is integral and important part of an injector which regulates the flow of fuel to the ultimate ignition compartment.. According to Sean Bennet all Diesel engines (DI) are directly injected. The fuel is injected into the cylinder immediately above the piston. Atomization is necessary for the injected fuel. Atomization of the fuel requires breaking it up into very small liquid droplets. These droplets are produced by forcing very high high-pressure fuel through minutely sized orifices or holes. The smaller the droplets, the faster it will vaporize and ignite when it is propelled into the engine cylinder. The size of droplets that exits the injector depends on following factors : Size of Orifice: The diameter of the orifice determines the size and flow of in the system. It does not change after it has been manufactured. Pressure :Injection pumps manages the pressure in nozzles. The higher the pressure, the smaller the droplets exiting the nozzle. The means to inject the fuel into the cylinder is an injector nozzle. Injector are further subdivided in two types with respect of an electronically controlled pump and injector components : Multiple-orifice hydraulics nozzles. Electrohydraulic nozzles. Injector nozzles are mostly used in diesel engines, marine engines, locomotives and automobile industrial equipments .The main function of nozzle is to convert the diesel into diesel vapours and spray it on the piston. Injector nozzles are widely used in American tanks. Figure 1.1 External view of injector/orifii nozzle (Courtesy of Robert Bosch GmbH,www.bosch-presse.de) The main users of nozzles are Nissan, Mitsubishi while Bosch is one of the leading manufacturers of these nozzles .Manufacturing process of this nozzle is carried through several operations after case hardening. These operations are drilling, grinding and pinning of the orifice. After the compete process of pinning, it is found that some metal particles and burr is remained at the orfii. In order to eliminate this particle nozzle testing machine is required to test the nozzle. 1.2 Issue : Air blowing operation is carried by an operator with the help of cylinder or jet directly attached to compressed air supply. To serve this purpose operator clamps the whole tray full of nozzles and then he reverse it. This gives more fatigue and stress to the operator because of its heavy weight. Then jet is placed on the ball end of nozzle and part gets clean. One part is been cleaned at a time. Furthermore, since inside of the nozzle body function as passage to the fuel ,if any chip or burr generated in cutting process remain on the nozzle body, it enters into the contact surface of the valve element and causes malfunction and fuel spillage of the valve element, which result into the loss of product reliability. The aim of the task is to make air blowing operation which is done after pinning to remove burr present inside the nozzle automatic and reliable, so the stress on operator is reduced with control manufacturing system. 1.3. Objectives : The main objectives of the project are stated as follows: To study and implement the pneumatic technique of automation for the successful working of the machine. To design and develop Air blowing machine which will be used in manufacturing and cleaning process of nozzle present in the fuel injection system. After the Research of Diesel Engine from Books and internet it is found that nozzle is one of the important part in fuel injection system. Nozzle development led to study the manufacturing processes of nozzle. Bosch company are the leading producers and patent of the diesel engine stated by Rudolf Diesel. In the general manufacturing process of nozzle after the case hardening, drilling, ball-grinding and pinning are important operation for the processing of the nozzle. However it is found out that during this operation burr or free metal particle gets collected inside the nozzle body. Introduction of Air blowing machine : To remove this burr or free metal particle Air blowing machine is introduced for the improved performance of the nozzle. Draft Design and 3d model: In order to build a successful Air blowing machine, design is very important to generate the safe and working model. Selection of materials, shape, parameters is the important factors to develop a 3D model of machine. Softwares like solid works, CES and some hand calculation is useful for the correct and accurate 3D draft design. Analysis and Results : After the complete design process of the machine the next and important stage is the mechatronic analysis. Pneuamatic and Electronics (PLC circuit ) techniques are used for the successful and automatic working of the machine. If these techniques are successful then go to the next stage or else go back and recheck the 3D model again. After the analysis, results indicates the final consequence for the actions of the work. Validation of results gives the reality check of the project. If the validation is true then follow the next stage and conclude the project with the useful recommendations. Chapter three : Literature Review 3.1 Patent and Research : Bosch group is one of the leading manufacturers of these nozzles and equipment for motor vehicle. In early as 1863, the Frenchman Etienne Lenoir had tested and driven a vehicle which was powered by a gas engine which he had developed. However, this vehicle proved insufficient for installing in and driving. It was not until Nikolaus August Ottos four-stroke engine with magneto ignition that operation with liquid fuel and thereby mobile application were made possible. But the efficiency of these engines was low. Rudolf Diesel then developed an engine with much higher efficiency and to pursue his idea through higher efficiency and to pursue his idea through manufacturing. In 1897, in cooperation with Machinenfabrik Augsburg-Nurnberg ,Rudol Diesel built the first working prototype of a combustion engine to be run on inexpensive fuel oil. However due to heavy weight of the engine, it wasw not considered for use in land vehicle. But with further improvements in fuel injecton and mixture formation, Diesels innovation caught on and there were no longer any viable alternatives for marine and fixed-installation engines.(Adopted from Robert Bosch Gmbh, DIESEL-Engine Management by Wiley 4t edition et al 2005) In 1886,Robert Bosch (1861-1942), introduced a workshop for electrical and mechanical engineers in Stuttgart, Germany. Later on in 1897 Bosch opened ignition system in gasoline engines. In 1922,Robert Bosch turned his attention to diesel engine and hence started manufacturing accessory parts such as nozzles and fuel injection pumps. Rudolf diesel wanted to inject the fuel directly earlier in the system, but was unable to do this because of unavailability of the nozzles and fuel-injection pumps. In contrary these pumps were used in compressed-air injection, had to be suitable for back pressure reactions of up to several different atmospheres. Nozzles had to have quite fine outlet openings because the task fell upon the pump and nozzle is increased to atomize the fuel. Hence in 1922 Bosch wanted to develop the nozzles and fuel-injection pumps that fulfils the requirement of all the heavy-oil low power engines with direct fuel injection. 3.2 Development of the system : The demand of fuel injection equipment on such that it should be a capable of injecting even small amounts of fuel with only quite small differences, so that it should facilitate more smoother and constant at low idle speeds. The performance of this system depends highly on injection pressure which should be average or above 100 bar. The operating hours of the pump was over 2000 according to Bosch. Hence the need to develop the related equipments had grown immensely with application of materials and production engineering. In 1925, Bosch joined hands with Acro AG to utilize the Acro patents on a diesel engine system with related injected equipments(nozzle). Acro injection properties did not matched, Boschs own test system but it offered diesel engine which was suitable for small cylinder units and high speeds and this led Bosch to develop nozzle and fuel injection pump. Sooner the first diesel fuel-injection pump by Bosch was produced Nozzle were developed parallel to pump development. Hole type nozzle were added later after the introduction of pintle nozzle. The nozzle were adapted with their process and size. Engineering manufacturers also wanted a nozzle which could be used in spark plug on a gasoline engine. 3.3 Expert View : 3.4 Scope of improvement: Diesel fuel injection has greater degree of features in world of technology. The needle valve in fuel injection system opens and close nozzle more than million times in the service life of nozzle. It generates and provides pressure as high as 2,050 bar and depends on stresses such as: Temperature and pressure of the combustion chamber . Shock caused by continuous opening and closing. High flow related stresses during fuel injection. Below are the features of the nozzle and its processes: Injection duration is 1-2 milliseconds which is higher compare to sound wave from loudspeaker . Pressure in the fuel-injection chamber is more than 2,050 bar and it operates efficiently at such a high pressure. Injection duration in vehicle varies from very low range to high range,hence the amount of fuel is forced at very high velocity through a very small opening. The clearance of valve needle is 0.002 mm which is very minimal. Hence high technology demands an enormous amount of expertise in development, materials and manufacturing techniques. 3.2 Current stage : Processes on nozzle : During the manufacturing process when part is about to go through final processses,case hardeniing is done on it. After case hardening, part goes through two operation as folllows : Drilling of the Orifice Ball Grinding at ball end from outer surface. When nozzle comes out for drilling, it is first hardened. Then the orifice is drilled at the ball end. According to the requirement the number of orifice varies from 3-8.The diameter of orifice is within 0.3-0.4 mm.DLL nozzles are further classified in many types with number of orifice. Fig1.2:Orifice drilled at ball end Then the part is brought to grinding station, where part goes through outer grinding at the ball end. Fig 1. Grinding at ball end after drilling A metal burr is remained at the entrance of the orifice due to the grinding. This metal burr reduces the performance of the nozzle. Hence it is necessary to remove this burr .To serve this burr, pinning operation is done on nozzle so that burr gets removed. Fig:1.4 Metal burr remain at ball end due to grinding Pinning :- Pinning is the operation in which a needle having comparatively smaller diameter than orifice is attached to the small motor having speed of 300 rpm.This needle is then inserted in the orifice.Due to this the burr is removed and gets collected inside the nozzle at the ball end. These free metal particles reduces the performance of nozzle or can damage the nozzle inside the body.Its not an easy task to remove this free metal particle.An air pressure of 5-10 bar is blown inside the nozzle from ball end to come out from other end of the nozzle as shown in below figure Fig 1.5 Air blowing through orifice to remove free metal particle Chapter 4 : Design Introduction of Air Blowing Machine Fig: Air Blowing Machine 4.1 Introduction of Air Blowing Machine It is the machine used to remove the free metal particles present inside the nozzle body. The main function of this machine is to remove this free metal. To remove this metal air is been blown inside the nozzle at 5bar pressure. Pneumatic circuit is attached to the machine and it is controlled by PLC. Hence it is based on mechatronics. Mechatronics is the branch of engineering which is defined as the combination of mechanical and electronics engineering to improve quality, productivity and effective utilization of energy. Pneumatics deals with usage of compressed air to create motion and hence can be utilised for doing useful work. Certain characteristics of compressed air have made this medium suitable for the use in modern manufacturing and production plants. Introduction of pneumatics in the manufacturing process benefited with cheaper medium of industrial automation which if judiciously used, may bring down the cost of production to much lower level. Many mechanical task that came across can be achieved pneumatically in nozzle manufacturing process. 4.2 Material Selection of Materials : Material should be softer than Nozzle material. The optimum material is Mild Steel according to CES software Properties of mild steel (C3O) : Carbon percentage = 0.3% Modulus of Elasticity= 2.06105 N/mm ² Modulus of Rigidity = 0.79105 N/mm ² Poissons Ratio = 0.3 Tensile Strength = 600 to 750 N/mm ² Yield Strength = 400 N/mm ² Izod Impact Value = 55Nm Density = 7.7810 4.3 Hand -Calculation for Design : Angle of Inclination for the Guide way : Fig : Forces on Nozzle Data Found : Mass of nozzle = 200gm Co-efficient of friction = 8 % Weight (w) = 0.20 9.81 = 1.962 N Let, R= Reaction force. ÃŽ ¨ = Angle of contact Addition of forces in horizontal direction is zero. Hence, ÃŽ £Fx = 0 R = w cos ÃŽ ¨Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.. 1 Addition of forces in vertical direction is also zero. Hence, ÃŽ £Fy = 0 ÃŽ ¼R = w sin ÃŽ ¨Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦2 Now by dividing equation 2 by 1 we get, ÃŽ ¼ = tan ÃŽ ¨ 0.08 = tan ÃŽ ¨ ÃŽ ¨ = 4.573ËÅ ¡ Therefore, ÃŽ ¨ = 5ËÅ ¡ To find reaction, From equation 1, R = w cos ÃŽ ¨ R = 1.962 cos (5) R = 1.9543 Factor of safety for design : Design of Cylinder holder : 1 Fig : Cylinder holder for cylinder Air pressure = 5 bar Force by the cylinder = 245 N†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.(Reference solid works ) Hence, Bending moment = Force x Displacement = 245 x 36 = 8820 N-mm Static load through stress, Volume of the holder = 4042 x15 +15 x15 x71 x40 = 67.8 x 10 ³ mm ³ Mass = Density x Volume = 7.78 x10-6 x 67.8 x 10 ³ = 0.5278 Kg Weight (P1) = mass x gravitational acceleration = 0.5278 x 9.81 = 5.1746 N Total weight (P) = Wt. of element + Wt. of cylinder = 5.1746 + 0.59.81 = 10.0746 N Stresses at the joint (ÏÆ') = P à · A = 10.0746 à · 6515 = 10.338 10-3 N/mm ² Extension in the element (ÏÆ'st) = (ÏÆ' à · E) x L = (10.33810-3 à · 2.06x 105) x 35 = 1.756 x 10-6 mm Maximum Impact load acting on the bolt (Pmax) = P {1+√ [(2 h) à · ÏÆ'st ] } = 10.0746 {1+ √ [(2 x 50) à · 1.756 x 10-6]} = 76.06 x 10 ³N Stress produce due to Impact load (ÏÆ'p) =√ [(2 E P h) à · (AL)] = √ [(2x 2.06x 105 x (10.1746+245) x 50) à · (6515 x 35)] = 392.47 N/mm ² 392.47 N/mm ² < 600 N/mm Stress produce due to impact load less than 600 N/mm hence design is safe.

Michelangelos David :: Arts Paintings Art History

Michelangelo's David Michelangelo Buonarroti (1475-1564) was a Florentine Sculptor, painter, poet, and architect. Based in Florence he started out as painter at the age of thirteen, apprenticed to Domenico Ghirlandaio, the leading fresco wall painter in Florence. But eventually his ambitions led to sculpture. Michelangelo had an ideal based on the physical expressiveness of the male nude.[1] Michelangelo sculpted in a Naturalistic style, its main characteristic being the depiction of subjects in a realistic manner. His sculptures, like David, often depict the mastery of anatomy; this can be shown by the structure of every muscle and sinew in the sculptures. For David, Michelangelo had taken up the theme Donatello and Andrea del Verrocchio had used successfully in their David sculptures; Michelangelo’s version was from a political point of view.[2] David is the largest free standing marble statue since classical times. The narrative derived about this sculpture speaks of the shepherd boy who defeated the giant Goliath. Michelangelo has transformed David into an ancient hero of unrivaled grace and beauty. Interestingly David’s sling is barely visible which may tell us his strength is derived from his moral courage. The hands of David also are shown exceptionally large signifying a sense of power. David stood as a symbol of Florence’s supremacy. [3] David was constructed in 1501 but not completed until 1504, and towered over the people at the entrance to the Palazzo Vecchio. Now it stands at the Galleria dell’ Accademia, Florence. This sculpture was an influence to other sculptor’s of the Renaissance because of how Michelangelo pushed the boundaries and artistic ideals of his generation to their physical and stylistic extremes. David is a large sculpture, measuring 13’ 5† high, and is a sculpture of marble. Michelangelo’s sculptures were often larger than life.[4] --------------------------------------------------------------------- [1] Alison Cole.

Teenage Abortions

Charlene Mays Professor H. English 1C 23 March 2010 Risk in Teenage Abortions Teenagers should not be allowed to have abortions. There are too many risk; abortions can cause young women infertility, meaning they will not be able to have kids. Young women young women have to deal with extreme fetal pain during an abortion process; there is also the probability that some can die right there on the table and have drastic changes in there hormones. Studies have proven that abortions can lead to an increased chance of breast cancer, Pelvic Inflammatory disease, and the contraction of Viral Hepatitis due to excessive bleeding and complications. We as teenagers also need to learn to grow up and take care of our responsibities Teen abortions is legal in almost every state, although some require parental or guardian permission. Abortion is the prevention of an innocent life, which is allowed without permission in over 20 states. I feel that teenage abortions should be banned from all stats even the ones with parent permission because sometimes a parent can force a child to have an abortion. Many women do not see a problem with abortion because according to them, a fetus is just cells. A fetus is more than just cells, it is a human being. Eighteen days after conception, doctors have detected the unborn child’s beating heart. Forty-five days after conception, brain waves have been detected. By three months, all body systems are present and functioning. All of these things occur in the first trimester and ninety-five percent of abortions are performed during the first trimester. What would you do if you accidentally got a young female pregnant, would you handle your responsibilities, or would you take the easy way out and get the abortion? Each and everyday teenagers all over the world are making the decision of taking the easy way out. Now days the way to bail out of having a child is to get an abortion. then you’ll never have to worry about diapers, and milk. When you handle your responsibilities you get the enjoyment of raising you own and being there for a younger one that will look up to you for the rest of there life. As a teenagers having an abortion can impact your life forever whether you decide to abort or give birth. Most teenagers find them selves in a hard position when a child is on its way of being born. eenagers begin to panic and think of all the things that they will miss out on in life, because of a child being born. Your friends and peers around you will either support you or start to dislike you in terms of your decision to get rid of a living fetus. Once any teenager its not like it can be undone the baby is already dead. All teenagers should take there time and really think about it before they go and get this process done. Abortions can cause young girls to have infertility in there futures. Whether you choose to keep your baby, put the baby up for adoption or have an abortion, hormones run crazy when you are pregnant. As you feel the life inside you start to grow, you become attached to it, or perhaps even angry with this new life. Sometimes teens even try to kill themselves because they don’t want to go though the abortion process. Some parents force teenagers to get abortions so that it doesn’t look bad on them and ruin their daughters lives. Responsibility is a big thing in raising a child without responsibility you find your self wanting to take the unborn life away. The issue of abortion has divided the country. However, there is an issue that we can all come to agree and that is a genuine reluctance of our society to take responsibility. The truth is that the majority of abortions do not occur because of the raping of a woman, incest, or potential loss of the mother's life. So why do they occur so often? They occur because people realize that they do not want to have a child for a number of different reasons from an inability to afford one to the potential change it causes to the female body. Nonetheless, the decision is not made because of the fear of the mother losing her life or any of the predominant explanations for the occurrence of abortions. At the root of the occurrence of so many abortions is the inability of individuals in society to take responsibility for their actions. Bearing children is the natural result of sexual intercourse under favorable conditions, it is not forced upon women by the United States government. I am forced to wonder: If a woman has a history of bad decisions which cause her an unwanted pregnancy, why should our society trust her to take the welfare of the child into account and trust her not make the abortion decision? Still, though it is clear that women have made choices that put them in the position of being pregnant, it is worthwhile to repeat a few reasons why abortion is an abhorrent murder of a baby. When a teenager gets pregnant there young bodies open up to a lot of diseases. They can contract Pelvic Inflammatory Disease, and the contraction of Viral Hepatitis due to excessive bleeding and complications. There is a possibility that teenagers can die on the table or to have drastic fetal pain. During the abortion process teenagers will feel excessive cramping as the excess blood discharges from the body. Teenagers may also contract Bacterial vaginosis which is one of the most common vaginal infections that occur in women today in the United States. Also a teenager can mess up her body by getting abortion that she can have a handicapped newborn in later on wanted pregnancies. Abortion is associated with cervical and uterine damage which may increase the risk of premature delivery, complications of labor and abnormal development of the placenta in later pregnancies. Complications are the leading causes of handicaps among newborns. Compared to women who abort teenagers who abort are two to four times more like to commit suicide. Teens are more likely to have psychological and relationship problems. Studies have shown that the major factors in pregnancy decision making among teens are the attitude of the teens parents, the baby’s father, and friends; the personality of the girl herself. A young girls mind can be messed up, this physical effect may cause her to feel an emotional emptiness she have never felt before. Less frequent side effects include possible heavy or prolong bleeding, blood clots, damage to the cervix and the uterus. Infection due to retain products of conception or infection caused by an STD or bacteria being introduced to the uterus can cause fever, pain. Abdominal tenderness and possibly scared tissue. All extreme things that you can die from. Teen abortion kills an innocent life. You exist because your mother chose to give birth to you. Personally I believe abortion is wrong and is definitely not a decision a teenager should have to make at all. Abortions should be band from society because we all need to grow up and take care of our responsibilities. Yea you might get pregnant, and you might not be ready but that doesn’t give you the right to kill an innocent life. Just think God has sent you down a soon to be beautiful baby, there are a lot of people that are unfortunate and have to adopt. Whether it is physical harm to the body or the religious point of view, there are two many risk with abortions in general.

Public Relations & The Impact of New Media Essay

Public Relations is a pivotal part of any business because it is the most direct communication between the business and the public. For a business to enjoy long term success it has to have the ability to evolve and adapt with the ever changing trends of the public in order to understand the needs and concerns of the general public. Author and entrepreneur Deirdre K. Breakenridge (2008) states in her book ‘PR 2.0 New Media, New Tools, New Audiences’ that â€Å"It’s critical for PR professionals to read, be knowledgeable, and stay extremely well versed about the markets their brands try to reach.† The 20th century brought TV, radio, and the Internet, which greatly impacted the practice of Public Relations. But just as these media channels brought impact and change to the practice of public relations then, so will the rise of new media in the 21st Century. With the emergence of many new online communication tools and channels due to the technological advancements of our time, public relations practitioners can no longer rely solely on traditional media to channel their messages. Today new media has been recognised as one of the strongest forms of channelling messages across to the public. It is extremely vital that PR practitioners learn, explore, and understand the use of new media and the roles it can play in public relations campaigns. This essay will examine the roles new media play in public relations campaigns and what the prevalence of new media imply for PR practitioners. Today new media is at the heart of companies’ public relations and marketing initiatives. One of the roles of new media in public relations is to build efficient and effective communication between public relations practitioners, or an organization they represent, and the different specific public groups they are trying to reach. Public relations practitioners rely on the tools and channels that new media provide for different purposes, all of which are part of effective communication and connecting with the public. Some of the purposes include building or maintaining relationships, garnering support and reputation, gaining feedback, delivering certain messages or news. In this day and age it has become essential for public relations to engage in continuous dialogue with the public. As the ways in which people transmit and receive information are rapidly evolving so must the ways in which PR interacts with the public. With new tools that are open to PR practitioners for communicating like E-mails, websites, digital/online newsletters, blogs, viral marketing, search engines, live conference calls, RSS and podcasting. (Aronson, Spetner and Ames, 2007, p. 1), new media provides enhanced information delivery systems and granting everyone with easy access to vehicles of mass communication. Theaker (2008) indicates that â€Å"Websites are already regarded as a mainstream element of corporate communications, and PR practitioners should be involved when clients set up websites,†. â€Å"The Internet provides the unique opportunity for people of all ages to acquire, digest, and understand a message through images, graphics, video, audio and other visu al displays which the traditional media could not put together to effectively communicate.† (Macky, 2011, p. 1). In addition to its use for connecting with the target public. New media can also be used in public relations for connecting with media outlets. Many trade publications, magazines and bloggers run blogs, Twitter accounts and Facebook pages for their news source. Majority of the latest news and cultural trends are carried on social networks and micro blogging services like Facebook and Twitter. Fitch (2009) states that â€Å"blogs have value as research tools in that they offer an insight to the complexity, subtlety, diversity, and the contradictions and lack of cohesion in public opinion.† Public relations practitioners would find that staying connected with the mass public through these channels would effectively increase their knowledge and understanding of the latest trends and happenings that people are talking about or are heavily influenced by. This particular role plays an important part in the strategies and tactics of how a public relations practitioner would carry out a campaign or defend it in a time of crisis. KFC’s 2010 scholarship tweet campaign was a great example of how effective new media can be in the practice of a public relations campaign. With 2.5 million college scholarships awarded every year in the U.S., KFC decided it had to cook up something innovative to stir buzz around the brand’s 75-scholarship Colonel’s Scholars program. KFC collaborated with Weber-Shandwick to reach out to a younger generation by employing trendy social media strategies. KFC and Weber-Shandwick decided to do away with the tired old college scholarship essay and award students a $20,000 scholarship based solely on a single tweet to convince KFC execs why they deserved a scholarship. The scholarship tweet campaign generated more than 1,000 media placements and tens of millions of media impressions, including two AP Wire stories, multiple stories on CNN Headline News, MSNBC, The Weather Channel and NBC national news. The program also captivated the online world, generating more than nine million social media impressions as a result of tweets during the brief entry period. In all, more than 2,800 applicants tweeted for their chance at $20,000, and the KFC Twitter handle saw a 20% jump in followers in just two weeks. But with the rise of new media on the internet, there is now a much greater ethical responsibilities with how PR practitioners handle the use of these tools. Qualitative as well as quantitative analysis is required because reported case studies indicate that some organisations and companies are attempting to engage in the what is now termed Web 2.0 social media environment using â€Å"traditional methods† of one-way information transmission and a control paradigm of communication characteristic of mass media (Gregory, 2004, p. 246). For example, some public relations departments and agencies have created fake blogs such as Wal-Marting Across America. In the former case, public relations firm Edelman created an organisation called ‘Working Families for Wal-Mart’ which published a blog in which ‘Jim and Laura’ allegedly reported their personal adventures driving across America in an RV which happened to include regular visits to Wal-Mart stores. Other bloggers including Wal-Mart Watch and later BusinessWeek quickly detected falsity and revealed that the couple were employed by Edelman on behalf of Wal-Mart (â€Å"Wal-Mart,Edelman flogged for blog†, 2006). Wal-Mart and Edelman Public Relations were severely criticised for the fake blog and creation of the fake organisation, referred to as ‘astro-turfing’ (Gogoi, 2006). And so with New media, many changes have been introduced to the practice of public relations in multiple ways. Most significantly in the shift from one-way PR communications to a two or multi-way communications. New media has also affected how PR professionals engage and interact with the traditional media reporter – especially with those who blog. Immediate access to reporter blogs allow for tracking of reporter interests and beats and this information leads to a more familiar, personalized dialogue in comparison to the traditional pitch. As more new media tools and techniques emerge, the public relations profession will continue to shift and incorporate the new practices. In the meantime, although new media requires more resources in terms of time, if offers more tools to expand reach of messages and programs. References Aronson, M, Spetner, D and Ames, C. (2007). The Public Relations Writer’s Handbook: The Digital Age. Breakenridge, D. (2008). PR 2.0: New media, new tools, new audiences. Fitch, K. 2009. New Media and Public Relations in Chia, J. and Synnott, G. An Introduction to Public Relations. Gogoi, P. (2006, October 9). Wal-Mart’s Jim and Laura: The real story. BusinessWeek. Retrieved from http://www.businessweek.com/bwdaily/dnflash/content/oct2006/db20061009_579137.htm?campaign_id=rss_innovate Gregory, A. (2004). Scope and structure of public relations: A technology driven view. Public Relations Review, 30, 245-254. Macky, M. (2011). Corporate Communication & The New Media Theaker, A. (2008). The public relations handbook. Chapter 20: Using New Technology Effectively in PR