All About Screw Pumps Engineering Essay

All About go to sleep Pumps Engineering EssayScrew fondnesss be carrousel, positive excision essences that can have unity or more shtups to transfer high or hapless viscosity fluids along an axis. A classic example of be intimate nerves is the Archimedes slam pith that is still employ in irrigation and agricultural applications.Although progressive cavity pumps can be referred to as a single drive in pumps, typic on the wholey turnkey pumps have two or more inter lucreing butts rotating axially clockwise or counterclockwise. Each f be thread is matched to carry a specific pot of fluid. Like gear pumps, screw pumps whitethorn acknowledge a stationary screw with a rotating screw or screws. fluent is transferred through successive march between the ho apply and the screw flights from one thread to the next. Geometries can vary. Screw pumps provide a specific volume with each cycle and can be dependable in metering applications.The geometries of the single or multip le screws and the drive speed will affect the pumping fill required. The message of screw pumps can be compute establish on the dimensions of the pump, the dimensions of the surface of the screws, and the rotational speed of the rotor since a specific volume is transferred with each revolution. In applications where multiple rotors are used, the load is dissever between a number of rotating screws. The casing acts as the stator when two or more rotors are used. Based upon the needs of the application, timed or untimed rotors may be chosen. Untimed rotors are simpler in design.The combination of factors relating to the drive speed, flow, and the characteristics of the fluid transferred may affect the flow rate and volume fed through each cavity. In water and wastewater treatment applications, a less viscous solution will require a debase post drive compared to untreated sewerage, surfeit sludge, or concentrated slurries, which may require a higher power motor. The viscosit y of the fluid transferred and the rise up required may affect the speed and power required. Indicators of pump malfunction include decrease in flow rate or change magnitude noise. The efficiency of screw pumps requires that each rotor turns at a rate that allows each cavity to fill completely in order to work at full capacity.TheoryScrew pumps are a ludicrous type of rotary positive displacement pump in which the flow through the pumping elements is truly axial. The liquid is carried between the screw threads on one or more rotors. The liquid is then displaced axially as the screws rotate and mesh. In other types of rotary pumps, the liquid is forced to travel circumferentially, however the screw pump has an axial flow pattern and low internal velocities. It provides a number of advantages in many applications where liquid agitation or churning is objectionable. Screw pumps are classified as two different types the single rotor and the multiple rotor. The multiple rotor is furt her divided into timed and untimed categories. Timed rotors deposit on outside means for phasing the mesh of the threads and for supporting the forces acting on the rotors. Untimed rotors rely on precision and accuracy of the screw attains for proper mesh and transmission of rotation (Fraser, et. al., 1986.).HistoryThe screw pump is the oldest type of pump. The first applications, dating back to the third century B.C., included irrigation and land drainage. The screw pump is thought to have been first used in Egypt (Ewbank, 1972). After several other types of pumps were invented, the screw pump was not used as much because these other pumps could handle higher learning ability capacities. However, later it was found that these pumps could not handle wastewater like the screw pump could. Because of this, the screw pump became widely used for such an application. The Dutch were the first to design a spiral lift screw in 1955. After this, double screw units were put into operation f or fill up control in the Netherlands and in municipal sewage installations in Europe. Based on excellent results from the pumps used in Europe, the trend extended to Canada and United States and are currently used today (Cheremisinoff, et. al., 1992) 2.How a Screw Pump WorksScrew pumps for power transmission systems are generally used only on submarines. Although low in efficiency and expensive, the screw pump is suitable for high pressures (3000 psi), and delivers fluid with little noise or pressure pulsation. Screw pumps are accessible in several different designs however, they all operate in a similar manner. In a fixed-displacement rotary-type screw pump (fig. 1, view A), fluid is propelled axially in a constant, uniform flow through the act of just third moving parts-a power rotor and two idler rotors. The power rotor is the only driven element, extending outside the pump casing for power connections to an electrical motor. The idlerrotors are turned by the power rotor thr ough the action of the meshing threads. The fluid pumped between the meshing helical threads of the idler and power rotors provides a protective film to pr tear downt metal-to-metal contact. The idler rotors finish no work in that respectfore, they do not need to be connected by gears to transmit power. The enclosures formed by the meshing of the rotors inside the close dynamic headroom housing contain the fluid being pumped. As the rotors turn, these enclosures move axially, providing a continuous flow. Effective performance is based on the following factorsThe rolling action obtained with the thread design of the rotors is responsible for the very quiet pump operation. The symmetrical pressure loading around the power rotor eliminates the need for radial bearings because there are no radial loads. The cartridge-type ball bearing in the pump positions the power rotor for proper seal operation. The axial loads on the rotors created by discharge pressure are hydraulically balanced .The key to screw pump performance is the operation of the idler rotors in their housing bores. The idler rotors generate a hydrodynamic film to support themselves in their bores like journal bearings. Since this film is self-generated, it depends on three operating(a) characteristics of the pump-speed, discharge pressure, and fluid viscosity. The strength of the film is enlarged by change magnitude the operating speed, by decreasing pressure, or by increasing the fluid viscosity. This is why screw pump performance capabilities are based on pump speed, discharge pressure, and fluid viscosity.The supply line is connected at the center of the pump housing in some pumps (fig. 1, view B). Fluid enters into the pumps suction port, which opens into chambers at the ends of the screw assembly. As the screws turn, the fluid flows between the threads at each end of the assembly. The threads carry the fluid along within the housing toward the center of the pump to the discharge port 1.Three Basic Types Single ScrewThe single screw pump is more ordinarily known as the Archimedean screw. It is quite large typical dimensions include a diameter of 12 inches or greater, and a length up to about 50 feet. It is normally used as a water-raising pump with the screw ar throw upd at an angle of 30 degrees. It can also be used for manipulation liquids containing solids in suspension with either vertical lift or horizontal transport. The design of single screw pumps allows very little fracturing of particles and little abrasion trauma to the pump. One disadvantage is the considerable bulk necessary to achieve high capacities since rotational speeds are of the order of 30-60 rpm (Warring, 1984) 5.Intermeshing Screw PumpThe intermeshing screw pump is commonly called a rigid-screw pump. This type of pump is suitable for a wide range of sizes, and can be run at high speeds. The large screw pumps are used for bulk handling of oils and similar fluids. The basic type is suitable for handling nearly clean fluids with low flow velocities and at low heads (Warring, 1984)5.Eccentric screw pumpThe crotchety screw pump is versatile. It is capable of handling a variety of liquids and products with high efficiency. It comprises of a rigid screw form rotor rolling in a resilient internal helical stator of hard or soft rubber with a moderately eccentric motion. It can handle viscous liquids, slurries, pastes, solids in suspension, and delicate products. This is because of the low flow velocities through the pump (Warring, 1984)5.ApplicationsThere are several applications of the screw pump that include a wide range of markets utilities fuel oil service, industrial oil burners, lubricating oil service, chemical processes, petroleum and crude oil industries, power hydraulics, and many others (Fraser, et. al., 1986). Listed beneath are some typical situations where a screw pump is used. The benefits of using a screw pump in each of these situations are discussed (Cheremis inoff, et. al., 1992)2.Raw sewage lift stations Can handle variety of raw sewage influent, are non-clogging, require little attention, are resistant to motor overloads, and are not affected by running drySewage plant lift stations Used for sewage lifts up to 40 feet and have self-regulating lift capacity (Normal lifts are 30 feet, temporary hookup high lifts are 40 feet high.)Return activated sludge Little floc disintegration, nonturbulent discharge into effluent channel, low horsepower requirements, improved activated sludge treatment.Stormwater pumping Are i hand because of large capacity at low heads, no prescreening necessaryLand waste vacuum tube Used for flood control, can pump large volumes of water over levees.Capacity The delivered capacity of any screw pump is the theoretical capacity damaging the internal leakage. In order to find the capacity of a screw pump the speed of the pump must be known. The delivered capacity of any rotary screw pump can be increased several different ways. The capacity can be increased by simply increasing the speed, increasing the viscosity, or decreasing the differential pressure. The capacity of the pump depends on several factors (Cheremisinoff, et. al., 1992)2Diameter of the screwSpeed of the screwNumber of flights mounted on the screw shaftFlights Single, double, and triple flights are often used. Flights are also known as helixes. With each increase in flights, there is a 20% increase in capacity. Therefore, a single flight pump has a capacity that is 80% of a double flight pump, which in turn has a capacity that is 80% of a triple flight capacity. The three-flight pump can handle the most capacity in the least amount of space.Angle of inclination of the screwThe greater the angle of inclination, the lower the output. The output lowers near 3% for every degree increase over a 22 inclination.Level of influent in the influent chamberRatio of the diameter of the screw shaft to the outside diameter of the screw fli ghtsClearance between screw flights and troughAdvantages Wide range of flows and pressuresWide range of liquids and viscositiesBuilt-in variable capacityHigh speed capability allowing freedom of driver selectionLow internal velocitiesSelf-priming with good suction characteristicsHigh tolerance for entrained air and other gasesMinimum churning or foamingLow mechanical vibration, pulsation-free flow, and quiet operationRugged, compact design favourable to install and maintainHigh tolerance to contamination in similarity with other rotary pumps (Fraser, et. al., 1986)4.Disadvantages Relatively high cost because of close tolerances and running clearancesperformance characteristics sensitive to viscosity changeHigh pressure capability requires long pumping elements (Fraser, et. al., 1986)4.Characteristics and Efficiency of Screw PumpsThe screw pump has a number of very all important(predicate) advantages compared with motor(a) due to recovery of velocity head at the discharge pumps. In order, however, to appreciate fully pipe are not as great, what the screw pump will do as compared with the outward-developing pump, particularly for low head operation, it is necessary to have a thorough knowledge of the characteristic curves of twain types of pumps. The three curves which are reproduced here show an actual comparison between a screw pump and a 36-in. centrifugal pump. A great deal of care has been interpreted to make this comparison as fair as possible but owing to the dissimilarity of the characteristics of the two pumps, a perfect comparison is practically impossible. For this reason , wherever it is impossible to make the conditions coincide exactly for the two different pumps, the centrifugal pump has been given every advantage, yet even under rather severe handicaps, the screw still maintains its supremacy under low head conditions.The combined curve shown in Fig. 3 illustrates that at all heads lower than 12.6 ft. the screw pump is the more efficient of the two pumps. It will be noticed that the 42-in. centrifugal has not been compared with the 42-in. screw pump because the screw pumps are designed for such very low heads that the suction and discharge sizes are made larger than the connections for centrifugal pumps which handle the same capacity. In other words, the 42-in. centrifugal pump would have a capacity so much greater than that of the 42-in. screw that comparison would be impossible. All of the total heads which are shown in the three curves are total dynamic heads, and this includes the velocity head. Therefore, the water delivered from the screw pump ismoving at a lower velocity because of the size of pipe, and hence it is in a more usable form. The entrance losses of the suction pipe and the losses due to recovery of velocity head at the discharge pipe are not as great.It has often been stated that the speed of a screw pump can be much higher than that of a centrifugal operating under the same conditions. These curves demonstrate this beyond a doubt. It will be noted that the centrifugal pump operates at 224 r.p.m., while the screw pump operates at a speed more than 50 per cent in excess of this, namely, 360 r.p.m. The advantage in the cost and the efficiency of a motor for operating these two pumps is distinctly in favor of the screw pump. Furthermore, the screw pump is a much lighter pump, requiring less expensive foundations, and it is easier to install. The 42-in. screw pump weighs 9,000 pounds, while the 36-in. centrifugal pump weighs 21,000 pounds. This shows that the body of the screw pump is much smaller than that of the centrifugal pump in spite of the fact that the pipe sizes are larger than the latter. In addition to this, the arrangement for pumping over levees, or between canals at different levels, is much more simple for the screw pump than for the centrifugal pump. The topographic dit through which the canal runs is always long and narrow and the screw pump, together with its p rime mover, makes a long narrow installation which lends itself to the shape of the property in which it is to be installed. The centrifugal pump is usually a more costly pump to produce than the screw pump, and this is especially true of the pump with the characteristics shown in Fig. 2 because of the fact that this 36-in. pump has a Francis runner.The Francis runner is known for its efficiency at low heads and in this case the curve reaches the unusually high maximum point of 90 per cent. This is partly due to the special design and partly due to the very careful workmanship and careful testing of the unit in question. The screw pump, on the other hand, had a caststeel runner whose surfaces were only partially smooth. No great effort was made to bring up its point of maximum efficiency, and thusly it does not exceed 76 per cent at any point. Yet, even in the face of these handicaps of workmanship and finish on the particular units which were selected for this comparison, the screw pump is shown to be inherently amore efficient pump at low heads. It does not take a great deal of imagination to square up how the screw pump efficiency curve of Fig. 3 would compare with the centrifugal pump efficiency curve had its blades been made of bronze and highly polished so as to reach a maximum point somewhere above 80 per cent. The curves shown in Fig. 3 are out of the ordinary in that they are plotted against the total head rather than against the conventional gallons per minute. This is done because the comparisons are at low heads rather than at a given capacity. By using this method of plotting, it can readily be observed that at low heads the efficiencies of the two pumps can be read directly from the chart. For example, at a head of 6 ft. the efficiency of the screw pump is 57 per cent while that of the centrifugal pump is only 42 per cent. This same information could be taken from the other curves but it would be inconvenient to do so. To get the efficiency from Fig. 1 it is necessary first to read the capacity. At 6 ft. the capacity is approximately 37,000 g.p.m. The efficiency is quite indefinite on account of the steepness of the curve but it is apparent that it checks approximately with the reading given in Fig. 3 namely, 57 per cent. Also in Fig. 2 it is necessary first to read the capacity and then the efficiency, which checks with Fig. 3 and is 42 per cent. In addition to this, Fig. 1 and Fig. 2 would not make a graphical comparison even if plotted on the same sheet. The important point which should be kept in mind is that these curves may not show up the screw pump to advantage when read in their entirety but that at the extreme right where the points of low work heads exist the advantages of the screw pump begin to assert themselves. It is under these conditions that a screw pump should be used. In general, these curves have demonstrated, directly or indirectly, most of the advantages of the screw pump over the centrifugal as fol lowsHigher efficiency at low heads, higher speed, lighterweight, smaller dimensions, lower first cost, lower cost ofinstallation, cheaper motor, more efficient motor, low headinstallation. 6.

Music theory

Music theoryABSTRACTMUSIC THEORY- Music theory is the field of study that deals with how medication works. It examines the language and notation of symphony. It identifies patterns that govern composers techniques. In a grand sense, medication theory distills and analyzes the para thous or elements of practice of medicine rhythm, harmony (harmonic function), melody, structure, form, and texture. Broadly, music theory may include any statement, belief, or conception of or about music. People who study these becomingties argon known as music theorists. Some have applied acoustics, human physiology, and psychology to the explanation of how and why music is perceived.The Four elements of music- Melody Harmony rhythm method of birth control DynamicsAESTHETICS-esthetics (also spelled esthetics or esthetics) is a branch of philosophy dealing with the character of beauty, art, and taste, and with the creation and appreciation of beauty. It is more scientifically positiond as the stu dy of sensory or sensori-emotional values, sometimes called judgments of sentiment and taste. More broadly, scholars in the field define estheticals as critical reflection on art, culture and nature. Aesthetics is a subdiscipline of axiology, a branch of philosophy, and is closely associated with the philosophy of art. Aesthetics studies new slipway of seeing and of perceiving the world.AESTHETICS OF MUSIC-Traditionally, the aesthetics of music or musical aesthetics concentrated on the quality and study of the beauty and enjoyment (plaisir and jouissance) of music. Aesthetics is a sub-discipline of philosophy. However, many musicians, music critics, and other non-philosophers have contributed to the aesthetics of music. In recent decades philosophers have tended to emphasize issues besides beauty and enjoyment.It is often thought that music has the ability to affect our emotions, intellect, and psychology lyrics can assuage our loneliness or incite our passions. For this reason, t he philosopher Plato proposed that music is a dangerous entertainment that should be closely adjust by the state. It is commonly believed that human responses to music ar culturally influenced. For example, musical passages in Beethoven that stronged highly dissonant to his contemporaries do not sound dissonant to listeners today. As such, musics aesthetic appeal seems highly dependent upon the culture in which it is practiced. However, there is a physical background which defines sound being proper or improper. Proper sound is perceived as gentle sound while improper sound is more or less considered nice sound depending on what the listener is employ to listen to. Harry Partch and some other musicologists care for instance Kyle Gann therefore have studied and tried to go throughularize microtonal music and the usage of alternate musical scales. Also many modern composers like Lamonte Young, Rhys Chatham and Glenn Branca paid much attention to a scale called just intonation.S ome of the aesthetic elements expressed in music include lyricism, harmony, hypnotism, emotiveness, temporal dynamics, resonance, playfulness, and color (see also musical development). However, there has been a strong tendency in the aesthetics of music to emphasize musical structure as the most central (or even only) aesthetic element that is important in the experience of music.RHYTHM-Rhythm is the news bulletin of music. As music passes in time, it is divided into perceptible sections, and to each one section subdivided further. Rhythm is the arrangement of sounds and silences in time. Meter animates time in regular cadence groupings, called measures or bars. The time signature or meter signature specifies how many skirts are in a measure, and which value of written note is counted and felt as a single pother. Through increased stress and attack (and subtle variations in duration), particular tones may be accented. There are conventions in most musical traditions for a reg ular and hierarchical accentuation of beats to reinforce the meter. Syncopated rhythms are rhythms that accent unexpected parts of the beat. performing co-occurrent rhythms in more than one time signature is called polymeter. See also polyrhythm.Rhythm is, by its simplest definition, musical time. The origin of the word is Greek, meaning flow. Rhythm is then the embodiment of timely flow. As meter regulates and pulsates a poem, rhythm organizes music in much the same way. The regular pulsations of the music are called the beat. Stronger beats are referred to as accented beats. Measures of music divide a piece into time-counted segments. Strong beats occur in patterns. For instance, in 4/4 time, the conductor would beat a strong beat on the first beat of every measure and another accented beat although not as strong on the third count of the measure. Beca persona the conductors arms move downward on strong beats, especially those that begin a measure, accented beats are also refe rred to as downbeats.In recent years, rhythm and meter have become an important area of research among music scholars. Recent work in these areas includes books by Bengt-Olov Palmqvist, Fred Lerdahl and barb Jackendoff, Jonathan Kramer, Christopher Hasty, William Rothstein, and Joel Lester.Rhythm either means tempo literally, or its percussion within tempo. Like instead of just 1-2-3-4-1-2-3-4-1-2-3-4. you might Get a groove like1-+-+-2-+-+-3-+-+-4-+-+-1-+-2-+-.Rhythm is the variation of the length and accentuation of a series of sounds or other events.RHYTHM IN LINGUISTICS-The study of rhythm, stress, and pitch in vernacular is called prosody it is a topic in linguistics. Narmour (1980, p.14753) describes three categories of prosodic rules which create swinging successions which are additive (same duration repeated), cumulative (short-long), or countercumulative (long-short). Cumulation is associated with closure or relaxation, countercumulation with openness or tension, while additive rhythms are open-ended and repetitive. Richard Middleton points out this method cannot account for syncopation and suggests the concept of transformation.A rhythmic unit is a durational pattern which occupies a period of time equivalent to a beatnik or pulses on an underlying metric level, as opposed to a rhythmic gesture which does not (DeLone et al. (Eds.), 1975ORIGINS OF HUMAN APPERCIATION OF RHYTHM-In his series How Music Works, Howard Goodall presents theories that rhythm recalls how we walk and the heartbeat we heard in the womb. More likely is that a simple pulse or di-dah beat recalls the footsteps of another person. Our sympathetic urge to dance is designed to boost our energy levels in order to cope with someone, or some animal chasing us a fight or flight response. From a less darwinist perspective, perceiving rhythm is the ability to master the otherwise invisible dimension, time. Rhythm is possibly also rooted in courtship ritual. Neurologist Oliver Sacks pos its that human affinity for rhythm is fundamental, so much that a persons sense of rhythm cannot be lost in the way that music and language can (e.g. by stroke). In addition, he states that chimpanzees and other animals show no similar appreciation for rhythm. RYHTM notational system AND THE ORAL TRADITION-Worldwide there are many divergent approaches to passing on rhythmic phrases and patterns, as they exist in traditional music, from times to generation.African musicIn the Griot tradition of Africa everything related to music has been passed on orally. Babatunde Olatunji (19272003), a Nigerian drummer who lived and worked in the United States, developed a simple series of spoken sounds for teaching the rhythms of the hand drum. He used six vocal sounds Goon Doon Go Do Pa Ta. There are three grassroots sounds on the drum, but each can be played with either the left or the right hand. This simple system is now used worldwide, in particular by Djembe players.Indian musicIndian m usic has also been passed on orally. Tabla players would learn to speak complex rhythm patterns and phrases before attempting to play them. Sheila Chandra, an English pop singer of Indian descent, made performances based around her singing these patterns. In Indian Classical music, the Tala of a composition is the rhythmic pattern over which the strong piece is structured. westbound musicStandard music notation contains all rhythmic information and is adapted specifically for drums and percussion instruments. The drums are generally used to keep other instruments in time. They do this by supplying beats/strikes in time at a certain pace, i.e. 70 beats per indorsement (bpm). In Rock music, a drum beat is used to keep a bass/guitar line in time.TYPES In Western music, rhythms are usually arranged with respect to a time signature, partially signifying a meter. The speed of the underlying pulse is sometimes called the beat. The tempo is a measure of how quickly the pulse repeats. The tempo is usually measured in beats per minute (bpm) 60 bpm means a speed of one beat per second. The length of the meter, or metric unit (usually corresponding with measure length), is usually grouped into either two or three beats, being called duple meter and triple meter, respectively. If each beat is divided by two or four, it is simple meter, if by three (or six) compound meter. According to Pierre Boulez, beat structures beyond four are simply not natural. His reference is to western European music.Syncopated rhythms are rhythms that accent parts of the beat not already stressed by counting. Playing simultaneous rhythms in more than one time signature is called polymeter. See also polyrhythm. In recent years, rhythm and meter have become an important area of research among music scholars. Recent work in these areas includes books by Maury Yeston, Fred Lerdahl and Ray Jackendoff, Jonathan Kramer, Christopher Hasty, William Rothstein, and Joel Lester.Syncopated rhythms are rhyt hms that accent parts of the beat not already stressed by counting. Playing simultaneous rhythms in more than one time signature is called polymeter. See also polyrhythm. In recent years, rhythm and meter have become an important area of research among music scholars. Recent work in these areas includes books by Maury Yeston, Fred Lerdahl and Ray Jackendoff, Jonathan Kramer, Christopher Hasty, William Rothstein, and Joel Lester.Some genres of music make different use of rhythm than others. Most Western music is based on subdivision, while non-Western music uses more additive rhythm. African music makes heavy use of polyrhythms, and Indian music uses complex cycles such as 7 and 13, while Balinese music often uses complex interlocking rhythms. By comparison, a lot of Western classical music is fairly rhythmically (or metrically) simple it stays in a simple meter such as 4/4 or 3/4 and makes little use of syncopation. Clave is a common underlying rhythm in African, Cuban music, and Br azilian music.In the 20th century, composers like Igor Stravinsky, Bela Bartok, Philip Glass, and Steve Reich wrote more rhythmically complex music using odd meters, and techniques such as phasing and additive rhythm. At the same time, modernists such as Olivier Messiaen and his pupils used increased complexness to disrupt the sense of a regular beat, leading eventually to the widespread use of irrational rhythms in New Complexity. This use may be explained by a comment of John Cages where he notes that regular rhythms cause sounds to be heard as a group rather than individually the irregular rhythms set off the rapidly changing pitch relationships that would otherwise be subsumed into irrelevant rhythmic groupings (Sandow 2004, p.257). LaMonte Young also wrote music in which the sense of a regular beat is absent because the music consists only of long sustained tones (drones). In the 1930s, Henry Cowell wrote music involving multiple simultaneous periodic rhythms and collaborated with Lon Thrmin to invent the Rhythmicon, the first electronic rhythm machine, in order to perform them. Similarly, Conlon Nancarrow wrote for the player piano.

Gender :: essays research papers

GENDER Gender can be defined as the sex-role that a person takes on according to guidelines or standards instilled in us by society. One can be a male or female biologically, but still be perceived as the icy sex due to the counselling one may think or present him self or her self. Whether or not we are born with reliable biological traits different in male versus female is the nature versus nurture question that has been around for years. Through research, science has found that work force and women differ in the way they process information, but whether or not this is due to the way that they are socialized or if in fact they are born this way has yet to be proven.In women and men, both respectfully, there exist many obvious differences that may sometimes overshadow some similarities. Some of the more super C identities familiarized with the males are their independence and sometimes exaggerated aggressiveness. Males also track down to be more focused on tasks and connections when with larger groups. The women, on the opposite hand, tend to be more interdependent, less aggressive, more sharing, more imitation of relationship and intimate discussion, more charitable, more empathetic, more likely to smile, more sensitive, and more skillful at expressing emotions non-verbally. Lets face it males, women are the super humans. One of the positive key advantages of a male is their assertiveness and high self-esteem. The women on the other hand are more extroverted and tender minded, qualities, which enable them to be all of the characteristics listed before. When gender differences are viewed at in a sexual aspect, the men are still the stereotypical pigs. Through relationships males are more likely to be involved for one thing, sex. The females, being much more sensitive and all, pauperism love and compassion through a relationship, and maybe sex, or making love on the side. In other words men want proclivity and women want love. Although popular belief m ay have that the females are the more mentally advanced, or smarter, studies show that both males and females have the same academic abilities and IQ average. Males are much better with mental rotation though.

Tennessee Williams A Streetcar Named Desire :: Williams Street Car Streetcar Essays

Tennessee Williams A Streetcar Named DesireThe play A Street Car Named Desire by Tennessee Williams has manycharacters with contrary personalities. One character that seems toplay an important part in this play is Stanley. The ruff and hardenedblunt husband of Stella, this is shown to us in the first two scenesintroduces this character to the consultation, and shows his attitudetowards the environment that he lives in. Through out the following Ishall be discussing about how Tennessee Williams introduces Stanley tothe audience and this helps us learn about him.At the beginning of the first scene the audience meets Stanley,Tennessee presents Stanly and a friend (Mitch) as They are abouttwenty-eight or thirty years old or so dressed in blue denim workclothes. This gives us an immediate impression of a classic Americanworking class guy, that doesnt have an signal education record.Tennessee shows another example that Stanley is of a low status,when he addresses Stella as Baby. This shows the audience thatStanley is not being rude, but it is just the way in which he hasdeveloped his vocabulary in a slang street manor. It also shows theaudience that he shows little respect even with the use of this slangterminology. other aspect that the audience will learn about Stanley is that heis adored by his wife Stella this is shown when she asks Stanley ifshe can come and watch him play bowling. This would not be normalbehavior of average women in the time since, the time when the play isset bowling was to be a manly sport. However one is left(p) to wonderwhether if Stanley simply draws women to him in this idealistic way.This extravagant entrance for the character Stanley , makes theaudience feel that he has an important influence in the play.Stanley is portrayed as a womanizer, and he carries on with thispractice even after he knows that his wife is pregnant. Its badenough that he is carrying on with this when he has a wife. Theaudience is made to feel that Stella kno ws of his habits of purposelyattracting women and flirting ass it has to have been the same way hegot involved with Stella. This could be a suggestion of why Stellaasked him if she could marijuana cigarette him and watch at the bowling alley.Stanley is portrayed as the man you love to hate, he is thee man thatmen want to be and the ruff end qualities women pull to. Even thoughhe hasnt been brought in the rich heritage the Stella and her sister

Business Analysis of IBM Essay -- Business Marketing IBM Companies Ess

Business Analysis of IBM1. History of IBMIBM is a multinational corporation that started its activities in 1911. But its origins can be traced back to 1890, during the height of the industrial Revolution. It was first known as the Computing-Recording Company, and then in 1924, it took the name of International Business Machines. Nowadays, this multinational company is known as the Big Blue2. kick statementIBM main activity is to find solutions to its wide range of clients using advanced information technology. Its clients are individual users, specialized businesses, and institutions such as government, science, defense, and spacial and educational organizations.To meet and respond to its customers needs, IBM creates, develops and manufactures many of the worlds most advanced technologies, ranging from computer systems and software to networking systems, storage devices and microelectronics. Indeed, IBM has various product lines and services a few of which are the Personal Comput er that was first created in 1981, AS/400 business system, RS/6000 family of workstations and server systems, S/390 enterprise server, groundbreaking ThinkPad notebook computer the award-winning IBM Netfinity and fin in ally, PC Servers. It is an important supplier of hard disks, random access memories, and liquid crystal monitors. IBM has created the image Solutions for a Little World. Its products and components in other firm products are so widespread that people around the world associate the name IBM with computing functions.3. OrganizationIBM is a global information system and computing company. It is organize in 5 worldwide regions, and the following business units1.Application Business Systems2.Application Solutions3.Enterprise Systems4.Networking Systems5.Pennant Systems Company6.Personal Systems7.Programming Systems8.Storage Products9.engineering Products4. Past and current performanceFor many years, IBM succeeded in holding a very good market position. In fact, the compa ny achieved a very spicy market share and huge profits. However, this situation did not last forever. In 1990, IBM experienced its first quarterly loss of $2billion due to some unexpected account charges. However, revenues increased from $62.7 billion in the previous year to $96 billion. In 1991, the c... ...nies in the world were ranked 1.IBM 2.Fujitsu3.Hewlett-Packard4.NEC,5.Compaq.VI. IBM in MoroccoIn 1939, IBM France launched in Morocco the first substance in Africa. Morocco was chosen because it represents an open door to Africa. IBM MAROC employs 85 employees and has almost 500 clients (ministries, banks, insurance companies, Al Akhawayn University, etc..). The main activities of IBM MAROC are to meet all customers needs, to provide high quality tools, and to create a structure that will guarantee high quality maintenance services.IBM has two important strategies, which are ask marketing it means selling directly to the consumer through the mail, by telephone, or door-to-d oor. By having direct contact with the customer, the company knows what are the needs, the preferences, and then can effectively choose the kind of products it will sell in the Moroccan market. Commercial partnership IBM has 22 commercial partners that sell its products in many different regions in Morocco. Thus, IBM MAROC is not obliged to create agencies in many cities, rather, its products are sold with other firms articles, which increases the competition.

The Poet Wallase Stevens :: essays research papers

Research PaperInside the Gray Flannel suitRationalists, wearing full-strength hets,hink, in square rooms,spLooking at the floor,          Looking at the ceiling,          They confine themselves          To right-angled triangles.          If they tried rhomboids,          Cones, waving lines, ellipses-          As for example, the ellipse of the one-half moon-          Rationalists would wear sombreros.               " sixer Significant Landscapes" (Collected Poems p.73-75)          Wallace Stevens is considerd one of the most important poets of this century. His style was unique and diffrent. The wa y he used words to optain the reality of something that cant be touched, is an staggering and brilant talent. Stevens was a really successful lawer and business sector man as well as a great peot. We usually think of peots and artists as "starving artists." Stevens was a very accommplished lawer and was good-tempered able to write beautifull peotry. His peoms useually contadicted his lifestile, but that might be were he got his insperation. He had a wife, family, and charge, he had a very queit lifestyle. But, his peotry is very noisy and abstract.      Wallace Stevens was born in 1879, in Reading, Pennsylvania. As a child, he started out at parochial schools, and later enrolled in public schools. Wallaces parents encourage him to read, which helped him become a better writter. In school, Wallace was an excellent student.      After high school, he continued his education at Harvard University, where he became involved with two H arvard newspapers, first the Advocate and consequently the Harvard Monthly. After departure college, he moved to refreshing York City. He take to the woodsed as a journalist, and considered a literary career. But, his father encouraged Stevens to become a more than practical career in the law business. He worked as a lawyer for a few years in New York. He worked at different firms and wherefore at the Fidelity and Deposit Company. He finally settled at the Hartford Accident and Indemnity Company, where he became the vice chair for the rest of his life.     It was deal Stevens led two separate lives, one of a business man and one as a poet. Stevens himself once said in a New York Times interview, "I prefer to think Im just a man, not a poet part time, business man the rest. This is a blushful thing, considering how inconsiderate the ravens are. I dont divide my life, just go on living." Many of Stevens fans are often surprised when they learn of S tevens life as a business man.      As mentioned earlier, Wallace Stevens work reflected his life in many The Poet Wallase Stevens essays research papersResearch PaperInside the Gray Flannel SuitRationalists, wearing square hets,hink, in square rooms,spLooking at the floor,          Looking at the ceiling,          They confine themselves          To right-angled triangles.          If they tried rhomboids,          Cones, waving lines, ellipses-          As for example, the ellipse of the half moon-          Rationalists would wear sombreros.               "Six Significant Landscapes" (Collected Poems p.73-75) &nb sp        Wallace Stevens is considerd one of the most important poets of this century. His style was unique and diffrent. The way he used words to optain the reality of something that cant be touched, is an amazing and brilant talent. Stevens was a very successful lawer and business man as well as a great peot. We usually think of peots and artists as "starving artists." Stevens was a very accommplished lawer and was still able to write beautifull peotry. His peoms useually contadicted his lifestile, but that might be were he got his insperation. He had a wife, family, and career, he had a very queit lifestyle. But, his peotry is very loud and abstract.      Wallace Stevens was born in 1879, in Reading, Pennsylvania. As a child, he started out at parochial schools, and later enrolled in public schools. Wallaces parents encourage him to read, which helped him become a better writter. In school, Wallace was an excellent stud ent.      After high school, he continued his education at Harvard University, where he became involved with two Harvard newspapers, first the Advocate and then the Harvard Monthly. After leaving college, he moved to New York City. He worked as a journalist, and considered a literary career. But, his father encouraged Stevens to become a more practical career in the law business. He worked as a lawyer for a few years in New York. He worked at different firms and then at the Fidelity and Deposit Company. He finally settled at the Hartford Accident and Indemnity Company, where he became the vice president for the rest of his life.     It was like Stevens led two separate lives, one of a business man and one as a poet. Stevens himself once said in a New York Times interview, "I prefer to think Im just a man, not a poet part time, business man the rest. This is a fortunate thing, considering how inconsiderate the ravens are. I dont divide my l ife, just go on living." Many of Stevens fans are often surprised when they learn of Stevens life as a business man.      As mentioned earlier, Wallace Stevens work reflected his life in many

The Scarlet Letter, Young Goodman Brown and Hawthorne :: Scarlet Letter essays

  The Scarlet Letter, Young Goodman embrown and Hawthorne         Writing under the influence of his Puritan background, Hawthornes attention was on individuals and their relationships within their community. theocratic Puritans punished sinners as deviants of bon ton and used the punishments to restate the boundaries within the group. The vanadium tenets of Puritanism reveal the curious nature of a religion that promoted genuineness as a constant goal of each individual, but provided except negative recompense of no punishment for good behavior and actions. The tenet of Unconditional Election make predestination clear. No matter how hard one tried to be good, only those elected were going to heaven.    In The Scarlet Letter Hawthorne introduces the community by right smart of the prison house and the women of the community being of mature board and church members in good repute. In the conversation that the women have about Hester thei r suspicious hearts and vengeful attitudes atomic number 18 revealed. In this way he shows us that this community, although it was designed to be the perfect Christian community, interprets itself as something else. We mess assume that Hawthorne shows us the bitchy ways of the women of the church, the ones who supposedly care for the sick and tend to the elderly, nurturing and soothe in a Christian-like manner, and the prison house to inform us that Puritan society has problems, the same problems that any society might have. We can begin to aver Hawthorne from the romantic perspective and see society as the guilty party. Indeed, the author sets us up to see Hester as a heroine, a rose, even though a wild rose.   And Young Goodman Brown takes his place as hero in his tale. Although we know that he embarks on an evil purpose, we also know his intentions are to return to his good Faith. But how can a Puritan return to his good faith when he is a sinner? There is no way to ach ieve goodness, because Adam sinned, so sinned we all. And if you accept that, even if you reject chew with it, who can be trusted? Not even your self. Young Goodman Browns happiness could only come from a life with Faith/faith and all he could suppose in was the reality of his faith, which was that all were sinners. That means that communion has to be communion with sin.The Scarlet Letter, Young Goodman Brown and Hawthorne Scarlet Letter essays  The Scarlet Letter, Young Goodman Brown and Hawthorne         Writing under the influence of his Puritan background, Hawthornes attention was on individuals and their relationships within their community. Theocratic Puritans punished sinners as deviants of society and used the punishments to restate the boundaries within the group. The five tenets of Puritanism reveal the curious nature of a religion that promoted goodness as a constant goal of each individual, but provided only negative reward of no puni shment for good behavior and actions. The tenet of Unconditional Election made predestination clear. No matter how hard one tried to be good, only those elected were going to heaven.    In The Scarlet Letter Hawthorne introduces the community by way of the prison house and the women of the community being of mature age and church members in good repute. In the conversation that the women have about Hester their jealous hearts and vengeful attitudes are revealed. In this way he shows us that this community, although it was designed to be the perfect Christian community, interprets itself as something else. We can assume that Hawthorne shows us the bitchy ways of the women of the church, the ones who supposedly care for the sick and tend to the elderly, nurturing and comforting in a Christian-like manner, and the prison house to inform us that Puritan society has problems, the same problems that any society might have. We can begin to read Hawthorne from the romantic perspecti ve and see society as the guilty party. Indeed, the author sets us up to see Hester as a heroine, a rose, even though a wild rose.   And Young Goodman Brown takes his place as hero in his tale. Although we know that he embarks on an evil purpose, we also know his intentions are to return to his good Faith. But how can a Puritan return to his good faith when he is a sinner? There is no way to achieve goodness, because Adam sinned, so sinned we all. And if you accept that, even if you reject communion with it, who can be trusted? Not even your self. Young Goodman Browns happiness could only come from a life with Faith/faith and all he could believe in was the reality of his faith, which was that all were sinners. That means that communion has to be communion with sin.