Introduction To Polyurethane Foam Engineering Essay

Introduction To Polyurethane Foam Engineering Essay Polyurethanes are broad class of materials used widely in many applications. Polyurethanes are also written as PUR. Polyurethanes also called as urethanes are characterized by urethane linkage -NH- C (=O) O . This linkage is formed due to the reaction of isocyanate group with hydroxyl group as shown in the following equation. [2] Equation 1.1 Equation showing the reaction of urethane linkage in polyurethanes. [2] Polyurethanes are discovered by Otto Von Bayer co workers in 1937. [3] The characteristic structure of urethanes is given as: And they can be considered as esters or amide esters of carbonic acid. [3] The polyurethanes are also sometimes called as urethanes only and they are also called as isocyanate polymers. They are synthesized by the reaction of polyfunctional hydroxyl compounds with polyfunctional isocyanates. [3] The structure of polyurethane formed from di hydroxyl compound and di isocyanate is given as: Polyurethane is widely used in various fields such as making of plastics, cushions, foams, rubber goods, synthetic leathers and fibres. The total annual production of urethanes in the world is estimated to be 8 million tons per year and is increasing 4-5 % yearly. [4] Polyurethane is a versatile polymer having unique chemistry with excellent mechanical and optical properties and have good solvent resistance. [5] Polyurethanes are materials with many applications but major applications are in furniture industry, foam industry, building construction and shoe industry and also polyurethanes can be used in medicinal and agricultural applications. [6] Polyurethanes have large number of applications and uses in different areas due to their versatility but most important application of polyurethane which has covered almost 29% of the total market of polyurethane is polyurethane foam. [7] 1.2 Polyurethane Foam The major application of polyurethane is polyurethane foams which are extensively used in many applications. They are referred as PUR foams and they are prepared by the reaction of addition, condensation or cyclotrimerization. [2] Following table shows the type of reaction in the foaming system and the resulting foam property present in the foam produced by that respective reaction. Foam Reaction Foam Property Polyurethane Poly addition Flexible and rigid Polyisocyanurate Poly cyclo trimerization Rigid Polyamide Poly condensation Flexible and rigid Polyimide Poly condensation Semi rigid and rigid Polyurea Poly addition Flexible and rigid Poly Carbodiimide Poly condensation Semi rigid Poly Oxazolidone Ring opening Poly addition Rigid and semi rigid Table 1.1 Table showing different types of foam based on their synthesis reaction [2] Mainly PUR foams are classified into two types which is flexible and rigid foam and then flexible and rigid foam are classified into various sub types depending upon the different type of applications in which they are used. Polyurethane structure consist of a polyol and polyisocyanate component we can say that polyols are the building blocks and isocyanates are jointing agents. So polyurethane foam chemistry is called as building block chemistry. All kinds of polyurethane foams are prepared with the proper choice of polyol and isocyanate component with respect to chemical structure, equivalent weight and functionality. [2] Following table shows the classification of PU foam with respect to polyol component and functionality. Polyol Rigid foam Semi rigid foam Flexible foam OH No. 350-560 100-200 5.6-7.0 OH Equivalent No. 160-100 560-280 10,000-80 Functionality 3.0-8.0 3.0-3.5 2.0-3.1 Table 1.2 Classification of polyurethane foam w.r.t polyol and functionality [2] 1.3 Foam Preparation Technology Polyurethane foams are prepared by mixing isocynate component in polyol having catalyst, fillers, additives, surfactants and other chemicals in it. No heating is required at room temperature. [2] 1.3.1 Foaming Systems Foaming systems are classified into three types based on the type of chemicals used in the synthesis process. These types are: One step One shot system Quasi Pre polymer system Full Pre Polymer system One step system and Quasi system are mostly used in foaming industries now in which one step process is used majorly while pre polymer system was used only in the early times of urethane industry. [2] 1.3.1.1 One step one shot System In one step system Component A and Component B are taken separately. Component A contains only polyisocyanate component while component B contains polyol, surfactant, blowing agent and catalyst. Both components are mixed which led to the formation of foam. 1.3.1.2 Quasi Pre polymer System In this system in component A polyisocyanate component is taken with polyol and in component B rest of the ingredients are taken with polyol which includes catalyst, blowing agent etc. Mixing forms a foaming product. 1.3.1.3 Full Pre polymer System In full prepolymer system in component A poly isocyantae component is taken and polyol is also added in it while in component B polyol is not added while the rest of chemicals like blowing agents, surfactants and catalyst are taken. Components A B are mixed and foam is formed. These foaming systems show only two component system however in industrial processes there are modifications. For example in slabstock process three or four streams are employed carrying different reactants. [2] 1.3.2 Foaming Processes Mainly three types of foaming processes are used, which are cup foaming, box foaming and machine foaming. Machine foaming is further classified into various foaming processes. [2] 1.3.2.1 Cup Foaming This foaming process is also known as hand mixing. This method is mostly used for lab scale synthesis of foaming products. In this process mixing is done in paper or plastic cups thats why called as cup foaming. In cup foaming poly isocyanate component is taken in a cup and rest of the reactants are also taken in a separate cup which includes polyols, catalysts etc. Then both the components are mixed using electric balance or by hand mixing and a foaming material is formed in the shape of a cup. This is the simple and cheap foaming process thats why used widely on lab scale. 1.3.2.2 Box Foaming Box foaming is better than cup foaming to obtain sufficient amount of samples for evaluating foam properties for machine foaming. The sizes of the box range from 15x15x15 cm and 30x30x30 cm. The inside of the box is lined with craft paper. The procedure is almost similar to that of cup foaming and mixing is done through electric drill equipped with mixer. Immediately after mixing system is poured into the box and allowed to rise to obtain foam. Foam is cured at room temperature after some time. [2] This method is also used largely on lab scale to produce foam. 1.3.2.3 Machine Foaming In machine foaming variety of machine processes are available which are one by one described as under. [2] 1.3.2.3.1 Large Box Foaming It is a discontinuous process used to produce small foam blocks with smaller volumes. The size can be 1x1x2 meters. Due to exothermic conditions small modification is required in the process as compared to the box foaming process. 1.3.2.3.2 Slabstock Foaming Slabstock foam is made by the continuous pouring of foamable liquids on a moving conveyer. A cut-off segment of the continuously produced foam loaf is called a block or bun [2]. In the case of polyether-based flexible urethane foam, a slabstock foam size can be about 1 meter high and 2 meters wide, with a foam density of 1.6 to 2.0 pound/ft3. The cross section is rectangular with a crown-shaped top surface. The higher the crown, the less the yield of available foam. Two techniques canto used to reduce the crown. One method is to pull vertical sides of rising foam. Another technique is to compress the top of crown surface. Equipment for doing this is commercially available. [2] 1.3.2.3.3 Pour-in-Place Foaming This process includes pouring of foaming ingredients into a void space to form an integral part of the foam and substrates. Products which use this process are household refrigerators and deep freezers. 1.3.2.3.4 Sandwich Foaming and Molding Sandwich foaming is used to produce sandwich panels from foam cores. It can be produced continuously using conveyers or discontinuously using jigs. Surfaces material can be craft paper in it. Molding is used to produce shaped foam products such as car seats and furniture. Reactants are placed in mold cavity and cured in the mold. After curing molded foam is removed. [2] 1.3.2.3.5 Spraying and frothing Spraying is a unique process used for urethane and iso cyanurate foams .It creates insulation layers not only on flat surfaces like roofs but also on non flat surfaces such as spherical tanks and pipes and building structures such as frames. Frothing process in urethane systems is similar to that of shaving cream. There are different types of frothing processes which are conventional frothing processes, chemical frothing and thermal frothing etc. Frothing process usage depends upon the reactants and conditions and which type of foaming product is required. [2] 1.4 Types of Polyurethane foams Major classes of polyurethane foams are flexible and rigid foam further these two types are more classified according to their extensive applications. 1.4.1 Flexible Polyurethane foam Flexible polyurethane foams are synthesized by slabstock process or by molding process and they are also classified further on the basis of technique used for their synthesis. They are also classified on the basis of polyol in polyether and polyester foams. Slabstock foams include conventional polyether foam, high-resilience (HR) foam, visco-elastic foam, super-soft foam, energy-absorbing (EA) foam, semi flexible foam, and flexible polyester foam. Molded foams are classified in two classes: hot molded foam and cold molded foam. [2] All classes of flexible foams are explained one by one as follows . 1.4.1.1 Slab stock foam The contionous piece of foam by the continuous pouring of foaming ingredients on a continuously moving conveyer is called slab stock foam. A cut off segment of slab stock foam is called as bun foam. Slab stock process is widely used in industry in production of flexible polyurethane foam. [2] In slab stock foam process inclined conveyer is used from the beginning of urethane industry. Following figure shows the production line of contionuous slab stock machine. Figure1.1 Continuous slabstock machine [2] The cross section of slabstock foams produced by the inclined conveyer process is not exactly rectangular and has crown shape. A crown-shaped cross section of foam bun results in a lower yield of fabricated foams. Accordingly, some improved processes to obtain rectangular cross sections have been proposed. One step process is widely used in these foaming systems. All ingredients are pumped into the mixing head through several streams and are poured from the mixing head onto the moving conveyer. From the standpoint of viscosity and metering accuracy, some ingredients are preblended. These blends include a blend of water and amine catalyst, a blend of tin catalyst and polyol, and a blend of physical blowing agent and polyol. The reaction temperatures in core foam usually reach about 160 to 170Â °C. The exothermic heat is mainly a function of the water-isocyanate reaction. The reaction temperatures are affected by the isocyanate index, water level, and catalyst concentration.[2] Poly ether slab-stock foam is important in slab-stock flexible PU foams and it is produced by this slab-stock process widely in industries. 1.4.1.2 Molded Flexible foams Molded flexible foams are used for making shaped products such as automotive seats, child seats, head restraints, vibration damping for automobiles, arm rests, furniture cushions and mattresses. The density distribution of molded foams is composed of high density skin foam and low density core foam. In the molding process mixed foaming ingredients are poured through a mixing head into a preheated mold made of aluminum, steel, or epoxy resin. The mixed ingredients flow and expand in the mold, and then the molded foams are kept at the required curing temperature for a limited time, which is followed by de-molding.[2] Molded flexible foams are further classified into hot molded and cold molded flexible polyurethane foams. 1.4.1.2.1 Hot Molded flexible foams Hot molded foam is produced using conventional polyether polyol with TDI 80/20. In 1961 hot-molded urethane foam mattresses was commercialized that provided better sleeping comfort than slabstock foam mattresses and greater durability. Because of the relatively higher cost, however, the molded mattress was not competitive with slabstock foam mattresses, and production was discontinued. [2] 1.4.1.2.2 Cold Molded flexible foams Cold molded flexible foam is prepared at very low mold temperatures of 60 to 70 Â °C with mold retention time of 10 minutes and then cured in a separate oven or at room temperature. In this type mostly isocyante components used are blends of TDI MDI and polyol used is polymer or graft polyol. Dual hardness automotive seats are made by this process using graft polyols. [2] 1.4.1.2.3 High Resilience HR foams HR foams have higher resiliency than conventional flexible foams. These foams are prepared by cold molded process. The formulation principle is to reduce intermolecular interactions such as hydrogen bonding of urethane linkages, irregular structures of polymeric molecule, and so on. High Molecular weight polyether polyols are used in the formulation of these foams. Polyisocyante components used are blends of TDI MDI with the weight ratio of 80/20. Also polymeric MDI alone can be used. HR foms are widely used in furniture and automotive applications. [2] 1.4.1.2.4 Visco-elastic foam Visco-elastic VE foams are characterized by slow recovery after compression. The foam is also called low-resiliency foam, slow-recovery foam, ergonomic foam, better-riding comfort foam, and temperature-sensitive foam. VE foams are used by NASA in early 1960 but they are highlighted commercially only in the recent years. VE foams are synthesized using polyol blend of high and low molecule weight polyols with TDI or MDI, and they can also be produced using blend of MDI TDI with polyether polyol. TDI-based VE foams are soft to the touch and have very low resilience and slow recovery. MDI-based foams are easier to process and can be produced in a wider range of isocyanate indexes. However, physical strengths of MDI-based foams are lower, resilience is higher, and compression set is better than TDI-based foams. The VE foam market includes seat cushions for people who spend a long time sitting such as truck drivers, office workers, and airline pilots, as well as for NASAs space shuttle seats, wheelchair seats, and so on; sporting goods that require energy absorption such as gym mats, helmet linings, leg guards for ice hockey, ski boots, and ice skates. [2] Our main product is VE foam and it is further explained in the later chapters. 1.4.1.2.5 Super soft slab-stock foam This foam can be prepared by using a high molecular weight polyether triol with TDI 80/20. Blowing agent can be water alone or some physical blowing agent can be used with water. It is a low density foam. Major market of super soft foam is high quality back cushions for sofas. This foam also have low cross linking density. [2] 1.4.1.2.6 Semi flexible slab-stock foam These foams have high open cells, high load bearing and high energy absorbing characteristics. These foams are used in large number of automotive applications such as bumper cores, interior knee bolsters, side impact absorbing door panels, and headliners under the automotive roof. Due to energy absorbing characteristics this foam may be called as Energy absorbing EA foam. [2] 1.4.1.2.7 Reticulated foam It is 100% open cell structure foam with no cell membranes. Removal of cell membranes for polyether foam is possible when membranes are dissolved with an alkaline solution. Reticulated foam find its applications in various mats, filters and pads.[2] Mostly the foam used in floor mats is this type of foam and it is mostly used in making mats and filters because it is completely open celled foam. 1.4.1.2.8 Integral skin flexible foam Integral skin foam is also called self skin foam. It consists of high density skin foam and low density core foam that is sandwich structure. The mold temperature for integral skin foam is carefully controlled at 40 to 70 Â °C. Water can be used as a blowing agent but it produces thin skins. Integral skin foam is prepared by open mold process or by reaction injection molding. [2] 1.4.1.2.9 Micro-cellular Elastomers These are also called foamed urethane elastomers. The density is in the range of about 320 to 960 kg/m3. Micro-cellular foams are prepared by using aliphatic polyester diols with poly tetra methylene ether glycol (PTMEG). The poly isocyanate component used is TDI pre-polymer and liquid MDI. Also chain extenders and cross linkers are used. Water is used as a blowing agent. These elastomeric foams are used for various shock absorbing elements in vehicle suspensions, precision machines, shoe soles and sports shoes etc. [2] 1.4.1.2.10 Shoe Sole foam The advantages of polyurethane foam in shoe soles include high abrasion resistance, high flexibility, low density, high cushioning, and solvent resistance. In addition, the direct molding of the sole with the upper part of shoe makes it possible to increase production efficiency and lower production costs. Casual shoes are produced using polyether-based foam systems. Some sports shoes such as tennis shoes are produced by polyester foam systems, because polyester-based foam has higher abrasion resistance, tensile strength, and elongation at break in comparison with polyether-based foams. [2]

The Knights Tale in Geoffrey Chaucers Canterbury Tales Essay

The Knight's Tale in Geoffrey Chaucer's Canterbury Tales The Knight's Tale is one of the twenty-two completed Canterbury Tales by the celebrated English Writer Geoffrey Chaucer (1343-1400). The Canterbury Tales are a collection of 120 stories that Chaucer began writing in 1386, and planned to complete during his lifetime. Each of the tales features a large range of characters in a great variety of medieval plots, along with interesting dramatic interaction. The Knight's Tale itself was completed sometime between 1386 and 1400. It is found in its entirety in the Ellesmere manuscript, one of the earliest of Chaucer's remaining manuscripts. The Ellesmere features the story, as well as an elaborately done pictorial representation of The Knight's Tale done in woodcarvings. The story line of this tale is based on Italian writer Boccaccio's Teseida written in 1381 or 1382. Chaucer's Knight's tale is a chivalric romance about love and war. These characteristics are presented as two possible sources of human affliction yet are celebrated in a very honoring, ceremonious way. In the tale, two knights are our main characters. Their story embodies the chivalric principles of honor and especially courtly love. In desperation they both decide they must either die or gain the heart of the beautiful maiden Emelye. After years, they eventually meet to fight for her in a duel. This was a common method of winning a lady in Chaucer's age due to the ide als introduced by former Queen Eleanor of Aquitaine of France (1122-1204). The romantic tradition of the work stresses passion and honor and their importance in successful courtly love. Although The Knights Tale is known primarily for its concentration on courtly love, the work... ...ov, 1998. <http://www.luminarium.org/medlit/knight.htm>. 6. Jokinen, Anniina. "The Knight's Tale in images". Nov. 3, 1997. 8 Nov, 1998. <http://www.luminarium.org/medlit/knightimg.htm>. 7. "Knight. WAV". Downloaded WAV file. Brigham Young University. 8 Nov, 1998. <http://english.byu.edu/chaucer/wav/knight.wav>. 8. "The Knight's Tale". The Geoffrey Chaucer Homepage. The University of Harvard. Feb. 2, 1998. 8 Nov, 1998. <http://icg.harvard.edu/~chaucer/canttales/knight/ktsum.html>. 9. "The left out tales: The Knight's Tale". The University of Texas. 8 Nov, 1998. <http://www.cwrl.utexas.edu/~scoggins/316british/chaucercanon/tales.html#knight>. 10. Tobias, Tom. "The Canterbury tales: The Knight's Tale". Virginia Tech University. 8 Nov, 1998. <http://sfbox.vt.edu:10021/T/tomt220/knit.html>.

The Origin of the Work of Art Essay -- Literary Analysis, Heidegger

In The Origin of the Work of Art, Heidegger attempts to the answer the question of what art is, as well as try to find the origin of art itself. In his attempt Heidegger distinguishes between his ideas of â€Å"Work† and â€Å"Equipment†. While, central to his argument within The Origin of the Work of Art, these ideas are important within themselves in Heidegger’s Philosophy. In this essay I will define as well as compare and contrast these two concepts. I will also explain the ideas of â€Å"Earth† and â€Å"World† presented by Heidegger in order to facilitate this goal. Finally, I’ll conclude the paper by summarizing the key concepts and their relationship to one another. In order to accomplish the goal of defining and explaining both â€Å"Equipment† & â€Å"Work†; I’ll need to introduce and explain two other prevalent concepts in Heidegger’s work. These are the concepts of â€Å"World† and â€Å"Earth†. First I’ll start with the notion of â€Å"World†. Heidegger writes, â€Å"The world is not the mere collection of the countable or uncountable, familiar and unfamiliar things that are at hand† (Heidegger, pg.170). Heidegger is stating that the â€Å"World† isn’t merely an ontical concept that most of us perceive of, a totality of matter existing within the material conception of â€Å"World†. Heidegger clearly explains, â€Å"The world worlds, and is more fully in being than the tangible and perceptible realm in which we believe ourselves to be at home† (Heidegger, pg 170). Heidegger defines â€Å"World† as an ontological concept, in which a web of significant relations exists between Dasein and all that is ready-at-hand. For example, a coffee table exists in a web of significant relations for it points to those who regularly sit at it, which then can branch of to the various conversations ha... ...e work lets the earth be an earth† (Heidegger, pg 172). He then adds, â€Å"The opposition of world and earth is strife† (Heidegger, pg 174). We finally have the criteria of what â€Å"Work† is. Heidegger explains that work sets up a world and sets forth the â€Å"Earth†. â€Å"The work is an instigating of this strife† (Heidegger, pg 175). That strife opens truth or as Heidegger puts it, â€Å"Aletheia† to the observer of the â€Å"Work†. The struggle or â€Å"Strife† is the process of a work of art taking place within the art work itself. In conclusion, the concepts of â€Å"Work† and â€Å"Equipment† that Heidegger presents in The Origin of the Work of Art can be summarized as follows. â€Å"Equipment† defines itself by its use and â€Å"Work† is grounded upon the â€Å"Earth† and â€Å"World† it was created on. Whose essential importance cannot be understated in order to understand Heidegger’s message within the text.

Husserl’s Conceptions of Formal Mathematics Essay -- Edmund Husserl Ma

Husserl’s Conceptions of Formal Mathematics Edmund Husserl’s conception of mathematics was a unique blend of Platonist and formalist ideas. He believed that mathematics had reached a mixed state combining Platonic and formal elements and that both were important for the pursuit of the sciences, as well as for each other. However, he seemed to believe that only the Platonic aspects had significance for his science of phenomenology. Because of the significance of the distinction between these two types of mathematics, I will always use one of the adjectives â€Å"material† or â€Å"formal† when discussing any branch of mathematics, unless I specifically mean to include both. First, I must specify what I mean by each of these terms. By material mathematics, I will mean mathematics as it had traditionally been done before the conceptions of imaginary numbers and non-Euclidean geometry. Thus, any branch of material mathematics seeks to describe how some class of existing things actually behaves. So material geometry seeks to describe how objects lie in space, material number theory seeks to describe how the actual natural numbers are related, and material logic seeks to describe how concepts actually relate to one another. Some of these areas (like material geometry) seek to deal with the physical world, while others (like material logic) deal with abstract objects, so I avoid using the word â€Å"Platonic†, which suggests only the latter. By formal mathematics, I will mean mathematics done as is typical in the 20th century, purely axiomatically, without regard to what sorts of objects it might actually describe. Thus, for formal geometry it is irrel evant whether the objects described are physical objects in actual space, or n-tuples of real nu... ... Bouvier, Bonn, 1981. Tieszen, Richard L. â€Å"Mathematical Intuition: Phenomenology and Mathematical Knowledge†. Kluwer, Boston, 1989. Zalta, Ed. â€Å"Frege’s Logic, Theorem and Foundations for Arithmetic†. Stanford Encyclopedia of Philosophy, http://plato.stanford.edu/entries/frege-logic/ Footnotes 1. Lohmar, p. 14 2. However, this claim is itself a material claim of the truth of a statement in material logic, i.e. that the given statement follows from the given axioms, when this statement and these axioms are viewed as actual objects in our reasoning system. 3. Husserl, p. 16 4. Fà ¸llesdal, in Hintikka, p. 442 5. Hill, p. 153 6. Husserl, p. xxiii 7. Husserl, p. 161 8. Gà ¶del, p. 385 9. Husserl, p. 163-4 10. Husserl, p. 167-8 11. Husserl, p. 169 12. Husserl, p. 168-9 13. Husserl, p. 136 14. Gà ¶del, p. 385 15. See Zalta’s discussion of Basic Law V. home

Littlefield Lab Essay

Since the beginning the team decided to try an aggressive strategy to win the game, assuming a riskier position with higher potential benefits and costs. For that, it was necessary to identify key parameters of the process and design a dashboard to analyze the information and make decisions in a faster way. The key parameters we started monitoring were demand (jobs accepted), stations utilization and lead times of the entire process. The first goal was to balance the line and satisfying the demand. Demand analysis and its relation to order kits In order to predict the future flows of the demand and match the info with the kit orders we create a model in attempting to avoid stock breaks or overstocks and anticipate the purchase of machines. The model considered the median demand of last 2 weeks projected with the growth rate of those weeks. Utilization of stations and its relation to purchase machines In order to to satisfy the demand, generate equilibrium in the capacity of the 3 stations, and avoid bottlenecks to get the maximum profit with the contract 3, the purchasing of new machines were made when utilization of any station was steadely over 80% and was justified by the cost-benefit analysis. Cost-benefit analysis to purchase machines Considering a demand of 30, 60 & 90, the pay back time will be 29, 15 & 10 days on ideal conditions. Changing the contracts When the balance was achieved on the process, then we started to intervene contracts since contract 3 provides the best profitability when the Lab is able to accomplish a promised lead time of 0.5 days being careful of change to contract 2 or 1 if the promised lead time would not be accomplished due to the circumstantial conditions of the process. To optimize the profitability of the jobs received on the first day of every week, we began to modify the contracts according to the following criteria: – Contract 1: If machine 1 had more than 3 jobs waiting for kits on last day of the previous week. – Contract 2: If machine 1 had between 1 to 3 jobs waiting  for kits on last day of the previous week. – Contract 3: If machine 1 had 0 jobs waiting for kits on last day of the previous week. Finally, on day 150 we try an â€Å"all in† strategy spending $160.000 in 1 machine for station 1 and 2 to increase the capacity and to process jobs only on conditions of con tract 3. This decision was taken based on a demand of 91 jobs and a utilization of station 1 of 0.83 between days 143 and 149. Profits analysis The table shows the sources and uses of cash including the analysis of main items. Description Amount, $ Comments Starting Cash + 1.000.000 Revenue +2.770.670 – 493, 226 & 1981 jobs were accepted under contract 1, 2 & 3 respectively. – $ 3.072.000 was the maximum possible revenue. (Calculations: 493 x $ 750 + 226 x $ 1.000 + 1.981 x $ 1.250) – $ 301.220 were lost for non-fulfillment of the contracts. (Calculations: $ 3.072.000 – 2.770.670) Interest +81.993 Station purchases -560.000 – 4 stations N º1 were bought on days 61,115, 141 and 150. – 2 stations N º2 were bought on days 116 and 150. All stations were bought at a certain time which ensures that the investment were payed back before the day 314 considering a pay back period 10-29 days for each station (see cost-benefit analysis). Inventory -1.704.600 – 2.841 kits were bought (including kits ordered by default). – 2.566 kits were ordered on the review period corresponding to day 7. – 2.700 jobs were accepted. Inefficiencies: – 134 kits were needed but not ordered (2.700-2.566 kits). They represent maximum losses of $ 167.500 (134 x $ 1.250) – 141 kits were ordered but not needed (2.841-2.700 kits). They represent losses of $ 84.600 (141 x $ 600) Cash Balance 1.588.064 The cash balance shows that investments on machines and kits were payed back but was not possible to get a better profitability because orders were only 80/week instead 91/week as we predicted on day 150. Conclusion – The Lab purchased the first 4 machines too late, so the up-grade of the process and the pay back of the investments were got too late, affecting profits. – The Lab should not have purchased last 2 machines (station 1 &2), since they were not needed to serve 80 orders/week (demand after day 150 was overestimated). It would have saved $ 160.000. – The contracts were not changed on time, so because of that there was a maximum lost of $ 301.220. – The kits were ordered including the number of jobs waiting for kits at the end of each week, because we do not realize that they were ordered by default. It would saved a maximum of $ 84.600. – The Lab should have worked with LIFO instead FIFO system considering that kits queued for station 1 were mostly already late to be ready at the lead time of 0.5 days under contract 3.

35 Dumb Things People Say

gym mat Paradowski 35 Dumb Things People give tongue to Dr. Cullen has been referred to as being the better(p) thither is at simplifying the complex issues of diversity in an entertaining and educational manner (MauraCullen. com). As expressed on Dr. Cullens website, she has been capturing the minds and paddy wagon of the great unwashed with dynamic seminars and speaking eng epochments in the United States, Canada and Australia. She is con situationred 1 of the best political science on leadership and diversity. She similarly has worked with everywhere 400 organizations with audiences of up to 8,000 passel. Dr.Cullen holds a doctors degree in Social Justice and conversion direction. She has 25 years of experience as a diversity trainer and loudspeaker system at everywhere 400 universities and organizations. Maura Cullen is the originator of 35 Dumb Things Well-Intended People claim Surprising Things We Say That Widen the transmutation Gap. She is a higher education as similator affairs professional and is the founding skill of the Social Justice Training Institute. (http//www. mauracullen. com). Her Education background includes The University of Massachusetts, Amherst, Springfield College and Bridgewater State College. http//www. linkedin. com/in/mauracullen). The audience I believe Dr. Cullen is arduous to reach is everyone in general, further legion(predicate) of the utterings that deal with race ar adapt more(prenominal) towards purity good deal. When course session The 35 Dumb Things Well-Intended People Say it seems that she was referring to everybody. I am pretty sure on the button nearly everyone has said at least(prenominal) one of the formulations at least at one cartridge holder in their livelihood. Out of the 35 looks listed I involve said 10 of them many a(prenominal) times in my support. The accommodate basic solelyy posits to the intended audience to retrieve onwards you speak. some(prenominal) people cou ld take the book as telling you to more politic only in ally correct. after(prenominal) reading over this chapter to me Dr. Maura Cullen seems to be an velocity class Republican who is besides nimble worrying nigh what everyone theorizes or ranks. She seems to necessitate everyaffair to be very socially and politically correct. In the real orb life ordain never be alike this. Sometimes while reading this chapter of her book I thought she approximates she is better than everyone else. If people didnt submit these things both(prenominal)times the world would be bland and everyone would act the said(prenominal) having no feeling or thoughts of their own.Who is she to say these things argon dumb to say. I am not dictum she is not impertinent but I am saying people need many of these sayings in their life and that yes rough may be considered dumb but some atomic number 18 also very relevant. I in truth dont guess that everyone is press release to think that thi s is repellent or that the soul saying it is an idiot or dumb. In todays day and age I dont think people really care if they floor an another(prenominal) person. I really never thought roughly or spy if any of the sayings in this book were offensive or not.Will I try to look into saying the ones that I think are offensive? Sure I lead but I let been saying them for so long or have heard people saying them that it is difference to be extremely sturdy to change. sequence reading this chapter, I saw some things people say that I think are pretty damn funny. For type 30 states, Thats so dauntless/ preposterous or thats so retarded (Cullen pg. 103). Anyone with some sort of honey oil sense would k at present when people say this they are not talking about homosexuals or mentally handicapped people. Anyone with an oz. of light would know this.When people say, that is so homo or, that is so queer they are actually saying whatever they are talking about is dumb or stupid. T he same goes for the saying, that is so retarded. Personally I say these things a lot. I dont mean anything bad by saying it. It is just that I have grown up saying it and do not think it is offensive. Like I said before anyone with an ounce of intelligence would know the true intention of saying, That is so gay or That is so queer. An example of a saying I think has some relevance is add up 16 I never own slaves. (Cullen pg. 83) This is one of the saying I think is geared only toward white people. I think it is relevant because of the amount of opposite racism in the world today. umpteen black people still recoil about The Man or white people. The black people that complain about white people usually say that the white man is guardianship them back. In all honesty the only holding them back is themselves and their lack of drive, determination and hard work. So white people started saying I never owned slaves so dont complain to me about your short comings.If anyone is discrimi nated against it is white people. The reason I say that is because of affirmative action. Why should soulfulness give birth a job over a more qualified applicant solely based on the coloring material of their skin and that the employer doesnt have generous of that race working for them. Finally that finishing quote I thought had some relevance at least in my life is number 20 occupational group women Girls, Honey, Sweetie Pie, or other old(prenominal) terms. (Cullen pg. 87) I used this statement all the time. I use it in the carriage Dr.Cullen says it is intended for which is to make a data link or attempting to make an environment more casual or friendly. (Cullen Pg. 87) I do not see it as prejudiced or move. I do not think it is disrespectful either. I say this because when a man calls his significant other knockout pie or honey they emphatically are not trying to be male chauvinist. I know for sure they definitely are not being condescending either. The thing is wom en say things like this also it is just men do not think it is sexist or condescending.Out of all the women I may have called sweetie pie or honey in my life I have never had anyone get upset behind my back or to my face about it. People who are not so uptight or stuck on themselves will not think it is sexist or condescending either. I do not think people need to watch what they say from now on. I believe that more people need to loosen up and tackle life as it comes to them. Is it really value complaining about these sayings? I for one think it is retarded or gay to complain and worry about all this crap.I have been through many thing in my life one of which was a near death experience. Life is too short to try and do everything the neat or office way. Sure some of the 35 saying could be a little on the rude side but hey no one is perfect, right? People have been saying these things and will continue to say these things until the end of time. Some things may change in time but not all. Weather it is rude, sexist or condescending it is all in the eye of the beholder. If we could all just ask out each other as they are then these sayings would be irrelevant anyways.I enjoyed reading this chapter of Dr. Cullens book but sometimes it do me angry after reading her best bets sections. Sure she has a doctorate but her best bet situations will not always be correct.Works Cited Dr. Maura J Cullen sort Taking Adversity out of Diversity. 2010. 29 Nov. 2010. . Dr. Maura Cullen Diversity Training & Coaching Professional. 2008. 29 Nov. 2010. http//www. linkedin. com/in/mauracullenCullen, Maura. Morgan James Publishing. New York tend City, 2008. Print.

Marketing Plan: Product and Performance Essay

Executive SummaryMobility, latest trends and technologies are three most significant factors that customer seek today when they walk-in in an electronic item’s outlet. Years before the journey of technology started out from the calculator the most basic computer as we call it. Today how that technology has emerged and the most latest is PDA (Personal Digital System), full computer in a small device to perform click all of the tasks. New Nokia Mobile phone has all the features of a desktop computer, no need of a laptop.You get your product to begin with.The english major source in use during cricket matches, exercising in the morning and during traveling for work or school. 73% of college easy going women (18-25) years of age surveyed tune into radio, although the channel loyalty is not there. The most frequent listening occurs after dinner time.This is different from male portable radio listeners as the FM channels are replacing cassettes as a music source while driving, o ther survey shows that second one of the popular source of music are the FM stations, FM 89, 91 and 106.Finding the demographics of your target marketplace will permit you to good tailor the launch strategy to the folks.

180 million), 16.667% of Pakistanis are young. Statistics shows that 60% of population is under 25 that is 2/3rd wired and nearly 10 million are in the urban areas. GEN X and GEN Y is the most experienced  and accessed generation in the human history.A merchandise is a new product procured or produced by the business to meet with the requirements of the customer.Our Secondary objective is to make good profits and make few more products like this with working hand in hand with the fashion and our way would be walking extract from earrings to necklaces, bracelets and other fashion accessories.Marketing ResearchMethods of Data collection:Basically there are two methods of data collection:1) Primary Data2) Secondary DataPrimary Data Collection:Primary available Data is that data which is collected specifically for the project at hand. The primary data for our assignment resulted from the unstructured interviews that we conducted from different many friends and family members and also many strangers.Secondary Data Collection:Secondary Data is that data, which has already been collected for some other purpose but can be used as reference material.The aim is getting your product into the industry although delivery methods vary widely based on the product.

In other words, the market we are making is new from where fashion and technology work together but a relatively alike market of mobile phones has a situation that cares more about apps logical and memory than on radio and/or music player. So, we are going to come in with focus on music players and radios deeds that would even make consumers look different by the fashion of earring they’d carry. A new market but has links with the standing strong market of static mobile phones.The ProductIntroduction of product:Now days, mobility is becoming an important factor in electronic devices.A superb product isnt simple to define since itll mean things.Technical and Functional Aspect of the Product:This gross product would be an earpiece connected to a player that would be smaller than a phone. Both the devices would be connected via Bluetooth. Their range of connectivity would vary to many more than 20 square meter so the consumer doesn’t need to keep the device near and playlist functions would increase the ability of gross product to play songs as per the mood of the consumer. Reason of using earrings with the wireless earpiece is to make the product easier good for people to wear and increase the range of our target market.To start with, youre mindful of how much it costs to create your merchandise.

Issue: How to identify the potential outlets?Mission statement:â€Å"We are the followers of the latest trend we strongly believe that fashion develops, we provide the best and quality is never compromised. Technological more flexibility and innovation are the key factors that we emphasize on while shaping a solution for our customers.† Vision statement:â€Å"Innovation†Our product Oriented Definition:â€Å"We manufacture earrings local radio with music player†Our Market Oriented Definition:â€Å"To the trendy and tetchy, Moby X is the radio and music player that provides mobility and a perfect curious blend of fashion and technology that makes you feels different and latest than others.†Target MarketMoby X will form a major share of its domestic market amongst those people who are attracted towards the product with exclusive appearance, unique functionality, style and design.Describe the way your target marketplace free will get your merchandise and also how youll market your goods.The mini chip radio and music player in the earrings itself is fascinating and will communicate on its own towards the people who are engrossed through mini products.Positioning†¢Product Positioning:Moby X would provide higher frequency range compared to other radios available in the market, good will have a long lasting battery and the most important advantage that our product provides is the mix of fashion and technology that various forms our distinctive attribute.Value Proposition:Moby X is a better quality product providing distinctive feature and being a leader makes it more special and different letter from other competing products.  LAPCO using latest Japanese technologies is most reliable and durable.In the product description, you should explain what product or your service is, the particular thrust of apply your strategy and the strategies thatll be used to do your own objectives.

†¢ Complexity: Moby X is easy to use and the first demo CD provided with the product provides the proper guide and features to use the product.†¢ Divisibility: Moby X is an expensive product and initially no discounted rates can be offered.†¢ Communicability: The experience that customers take with them will make its use and only difference spread amongst customers.Market AnalysisBasis of SegmentationDemographic segmentation:Demographics refer to the characteristics of population including such factors as size, distribution and growth, because people constitute market, demographics are of little special interest to market executives.In the end, it is not mysterious and youll be able position to promote your company or to manage a person to deal with advertising for you once you understand how pieces fit together.Any one lying in the income bracket of Rs 50,000+ can afford this productPsychographic Segmentation:The psychographics of the Moby X can be analyzed by r eviewing the advertisement. The lifestyle shown in Moby X advertisements portray successful, sophisticated, professional women who are active energetic and full of life. Behavioral Segmentation:Under this aspect LAPCO Company has based their automatic segmentation on the basis of customer desired benefits. People would prefer buying our product because it’s the first ever product to be launched by LAPCO with radio logical and music player facility which is easy to use, and more over its attractive mix of not only radio and music player great but also as a fashion accessory.The plan has to be accessible to any employee at any given moment.

Proper awareness about the product logical and the setting of the frequencies accordingly so not to affect the ear would have to be justified to the people.Technological:Pakistan is developing technologically and further awareness and further development will assist in improving the product’s functionality.Competitor AssessmentCOMPETITOR ANALYSISMoby X is competing in portable media industry.Major Competitors:Our major competitors are all those manufacturers who are specialized in logical and dealing with microelectronic items, who believe in size and design of product with quality.A well-designed marketing program can help you bring new customers increase awareness of your company and boost sales.COMPETITIVE STRATEGIESDifferentiation:Moby X is an innovation in the arena of radios and all kinds of classical music players. It gives connectivity to the outside world in a way that adds value and beauty to the face.Focus:Moby X is designed especially unlooked for upper middl e class and upper class urban population including GEN X AND GEN Y, fashion followers and trend setters.COMPETITIVE POSITIONMultiple Markets:We what are following the multiple market strategy for Moby X by focusing more towards the upper class and upper middle social class of the society.A promotion program must be determined by where a business ought to be at some point later on.

Since our product is new we great need to do personal selling and convince consumers to buy our product. Then eventually as we gain a foot hold in the market we will have retailers selling our product.Marketing StrategyMARKETING MIXPRODUCT CLASSIFICATION:Moby X is broadly classified as consumer product and under this category we define it as a own specialty product because it is a perfect mix of style and technology. It involves strong brand preference and loyalty, special purchase efforts by consumers, little comparison of brands and low price sensitivity.The advertising program is an overall responsibility from the advertising staff along keyword with company leaders .It includes 3 years’ money back warranty and a pair of fabulous earrings along with the product. Customers are encouraged to fair share their views about the buying experience of the product and after sale experience through surveys conducted at the outlets. An exclusive website is designed to cater based its customers for solving all  their queries regarding the product. Online purchasing service is also available.Face it is a chore.

3 years (Limited) Warranty.Size – (1/3x 1/3 x 3/8) mm is the size of radio chip. 30 x 20 x 5 mm is the size of the earring. Weight – 1/2 oz is the low weight of the earring radio.Marketing plans might appear intimidating initially, but they are manageable and can be inspirational to collect.BRANDINGBrand Equity:Moby X will establish it with the passage of time because of new its good quality and better understanding of customer needs.Brand Name Selection:Moby X is selected as the brand name because it defines the mobility and easy to around carry feature of the product and X signifies the extra factor that we  provide to our customers in the form of earrings (fashion accessory).Brand Sponsorship:LAPCO is manufacturer’s brand.Brand Development:No extension.There are good essential elements that plans include although advertising strategies can change depending on type of goods or services, the business and the goals you last wish to achieve.

Free demo CD is also given. Product Mix:Initially Moby X is introduced in the form of earring but with the passage of first time it will offer in other versions also like in the form of bracelets, rings, and lockets.Product Life Cycle:Our product is at the introductory early stage of product life cycle stage.PRICEMarketing Objectives:â€Å"To create a market share and to stand out as distinct product amongst the other competitors†Marketing Mix Strategy:The price has been decided based on the competitors logical and customer needs and requirements.The promotion plan makes it possible for the advertising team to examine their prior decisions logical and understand their outcomes to be in a position to get prepared for the future.PRODUCT PRICING STRATEGYComparing competitor’s pricingCompetitorPriceSinclair XI Button RadioRs. 2304.93FM Mini Radios Rs.719.3500.PLACEMENTThe product would be sold through â€Å"Indirect Marketing Intermediary†. The product will be sold through push strategy that is product would be first distributed to the wholesalers and then to retailer. The retailers would assist in creating contact with the other retailers which would expand the network and add value.

Newspaper:Moby X is an expensive and new product. There is need to create awareness amongst people that such a product exists. ‘Dawn’ newspaper would be a better choice to advertise being one for the most popular newspapers in Pakistan. A full page would be dedicated to advertise the product providing  a detail know how of the features and distinctive attributes.Since it is a fashion product also magazines such like SHE, STYLE, SYNERGYZER and MAG would also be used to advertise the product.Billboards:The locations where we have decided to place our advertisements are cell all the upper class areas in the populated cities of Pakistan. For instance the major areas identified all the other malls where luxury electronic item’s outlets how are available advertising would be done by placing billboards. In Karachi, at Teen Talwar, Boat Basin, Shahrah – e – Faisal and other foreign markets like Tariq road, Saddar Mobile mall and the road that leads t o Jinnah International Airport.com that special offers all the latest songs.Sales Promotion:One free pair of earring apart from the one already provided in the package would be given with the product.Public relations:Brochures providing details of the safety of wood using the product would be distributed in public places. Articles about the working and flexibility in use would be published in a leading magazine to inform the public about the safety in using this product.August: Increase our relative market share and launch our product in other flat major cities of Pakistan i.e. Lahore, Islamabad.September: We will start an integrated internet campaign targeting young college students.