Saturday, December 28, 2019
Edaphosaurus Facts and Figures
At first glance, Edaphosaurus looks a lot like a scaled-down version of its close relative, Dimetrodon: both of these ancient pelycosaurs (a family of reptiles that preceded the dinosaurs) had large sails running down their backs, which helped to maintain their body temperatures (by radiating away excess heat during the night and absorbing sunlight during the day) and were probably also used to signal the opposite sex for mating purposes. Oddly enough, though, the evidence points to the late Carboniferous Edaphosaurus having been a herbivore and Dimetrodon a carnivore--which has led some experts (and TV producers) to speculate that Dimetrodon regularly had big, heaping portions of Edaphosaurus for lunch! Except for its sporty sail (which was much smaller than the comparable structure on Dimetrodon), Edaphosaurus had a distinctly ungainly appearance, with an unusually small head compared to its long, thick, bloated torso. Like its fellow plant-eating pelycosaurs of the late Carboniferous and early Permian periods, Edaphosaurus had a very primitive dental apparatus, meaning that it needed a whole lot of intestines to process and digest the tough vegetation it ate. (For an example of what this whole lot of guts body plan can result in, without the distraction of a sail, check out the awkward build of the contemporaneous pelycosaur Casea.) Given its similarity to Dimetrodon, its not surprising that Edaphosaurus has generated a fair amount of confusion. This pelycosaur was first described in 1882 by the famous American paleontologist Edward Drinker Cope, after its discovery in Texas; then, a few years later, he erected the closely related genus Naosaurus, based on additional remains excavated elsewhere in the country. Over the next few decades, however, subsequent experts synonymized Naosaurus with Edaphosaurus by naming additional Edaphosaurus species, and even one putative species of Dimetrodon was later moved under the Edaphosaurus umbrella. Edaphosaurus Essentials Edaphosaurus (Greek for ground lizard); pronounced eh-DAFF-oh-SORE-us Habitat:Ã Swamps of North America and Western Europe Historical Period:Ã Late Carboniferous-Early Permian (310-280 million years ago) Size and Weight:Ã Up to 12 feet long and 600 pounds Diet:Ã Plants Distinguishing Characteristics:Ã Long, narrow body; large sail on back; small head with bloated torso
Thursday, December 19, 2019
Women Of Algiers By Pablo Picasso - 974 Words
Pablo Picasso painted his version of ââ¬Å"Women of Algiersâ⬠120 years after Eugene Delacroix painted the original in 1834. Those 120 years were full of evolving paint styles, and it can definitely be seen when you look at the two paintings side by side. Although both paintings were painted in different times with different historical context, they still share some similarities, but also some differences. Delacroix painted ââ¬Å"Women of Algiersâ⬠in 1834, two years after the French colonization of Algeria. Most people view his painting as accurate because he visited Algeria just two years previous (Ma). Delacroix went to Algeria in 1832 as part of a diplomatic mission for France. Because of this, some people believe that ââ¬Å"Women of Algiersâ⬠was ââ¬Å"propaganda for Franceââ¬â¢s imperialist ambition (Ma 9).â⬠The painting was meant to show the women as oppressed and under control, the same thing that imperialistic France hoped to accomplish with the country they desired (Khannous). The painting itself was very much influenced by the oriental culture of North Africa, but was also warped by the European fantasy of North Africa. Oriental objects and color schemes can be seen throughout the painting; however, the paintingââ¬â¢s presentation of its subjects are a product of European influence. The painting is supposed to depict a Harem, which to Europeans was viewed as a place where men kept their multiple concubines and wives; however, the European view of a Harem is very over-dramatic, and actuallyShow MoreRelatedWomen Of Algiers By Pablo Picasso898 Words à |à 4 Pages Women of Algiers Women of Algiers (Picasso, P. 1955) is a cubist style painting by Pablo Picasso, depicting a brothel scene in which women are selling their bodies. Patched in vibrant colours and patterns the painting displays four women, with the main focus being the female on the left. Incidentally she is the only one that has a head, the rest are just breasts and legs. The style of the painting leaves these women most disturbingly chopped and sliced up, missing parts of their bodies but stillRead MoreThe Great Gatsby By F. Scott Fitzgerald877 Words à |à 4 Pagesfeminist perspective, discussing the producersââ¬â¢ use of women in the works and feminist or anti-feminist ideas. This paper will first look at the novel The Great Gatsby (Fitzgerald, F, S, 1925), analysing Fitzgeraldââ¬â¢s use of gender roles and feminist ideals. A product of its time, The Great Gatsby has female characters in secondary roles, but surprisingly doesnââ¬â¢t completely confine all of them to strict gender roles. The focus will mainly be on the women of the novel: Daisy Buchanan; Jordan Baker; andRead MoreComparison Between Eugene Delacroix And Pablo Picasso s Paintings1662 Words à |à 7 PagesComparison between Eugene Delacroix and Pablo Picassoââ¬â¢s Paintings The painting by Delacroix completed in 1834 titled The Women of Algiers, revealed an enriching revelation of Algerian women who were depicted with their distinctive beauty and fashion sense. Delacroix went on a voyage to North Africa where he managed to observe the lifestyle of the people there which later motivated him to come up with the famous painting. It has been speculated that the final work represented an equilibrium betweenRead MorePablo Picasso3152 Words à |à 13 PagesPablo Picasso A Brief Biography #9;Pablo Ruiz Y Picasso was the most famous artist of the 20th century. He was born on October 25, 1881 in Malaga, Spain. Picasso showed great talent at an early age. He loved to paint pictures of city life and was fascinated by the circus. He also enjoyed painting pictures of the day-to-day life of poor people in his neighbourhood and was also very poor himself. His father, Jose Ruiz Blasco, was a Castilian art teacher in Malaga and his mother, Maria PicassoRead More Pablo Picasso Essay2997 Words à |à 12 PagesPablo Picasso A Brief Biography Pablo Ruiz Y Picasso was the most famous artist of the 20th century. He was born on October 25, 1881 in Malaga, Spain. Picasso showed great talent at an early age. He loved to paint pictures of city life and was fascinated by the circus. He also enjoyed painting pictures of the day-to-day life of poor people in his neighbourhood and was also very poor himself. His father, Jose Ruiz Blasco, was a Castilian art teacher in Malaga and his mother, Maria Picasso
Wednesday, December 11, 2019
Rhetorical analysis of elle woods speech free essay sample
Elle Woods (Reese Witherspoon) delivers the student address at Harvard Law Schoolââ¬â¢s 2004 graduation ceremony in the movie Legally Blond. In the film Elle is a misguided student who gets accepted into law school upon false pretenses, merely to get back with her ex-boyfriend. He broke up with her because she was not suitable to be a future Senators wife, he claimed she lacked intelligence and only had her looks to depend on. Everyoneââ¬â¢s doubt pushed her to stay determined, confident, and come to the conclusion that she does not need a man to justify her life. She also realizes that passion fuels the ability to become successful. This speech is very effective because of the rhetorical appeals of ethos, logos, and pathos used throughout. This scene is replete with ethos to the audience she is performing the speech to, because they are her fellow students who have watched her grow into a bright, respected, mature lawyer. We will write a custom essay sample on Rhetorical analysis of elle woods speech or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Ethos simply means the appeal to the speakerââ¬â¢s own character or credibility, marking their words as believable and/or genuine. Professor Stomwell introduces Elle, ââ¬Å"I am, personally, very honored to introduce this yearââ¬â¢s class-elected speakerâ⬠¦ I am sure we are going to see great things from her. â⬠This introduction to the scene allows the audience to be aware of Elleââ¬â¢s outstanding achievements throughout her college career, as well as her respectable reputation from the professor and being class-elected, her fellow students. Her classmates know of her failures and successes, therefore she is credible to give a speech about passion, and the passion allows her to seem more sincere in her words. She must also be given a great deal of ethos for being chosen as the Harvard graduate who is selected to speak at the ceremony. However, when Elle ends the speech with ââ¬Å"Congratulations Class of 2004 ââ¬â We did it! â⬠This self-reference of ââ¬Å"weâ⬠allows the audience to trust Elle, in knowing they all did this together, and she is one of them despite being the one to give the speech. She gives the speech on behalf of the entire graduation class, which allows ethos to perceive her as likable and fair as well. This speech also includes the persuasive appeals of logos and pathos. Logoââ¬â¢s means persuading the reader by making oneââ¬â¢s argument reasonable and logical. Elle begins her speech, ââ¬Å"A very wise Professor quoted Aristotle ââ¬Å"The law is reason free of passion. â⬠Well no offense to Aristotle but in my three years at Harvard I have come to find that passion is a key ingredient to the study and practice of law and of life. â⬠First with logos, she uses a very famous philosopher Aristotleââ¬â¢s historical analogic theory to illustrate her opinion. Next, her logic that Aristotle was wrong is backed up by her and the audiences shared experiences of law school, in that is involves a great deal of passion. Also, she denies the cliche of first impressions with a more logical argument ââ¬Å"that first impressions are not always correct,â⬠which appeals to the audienceââ¬â¢s sense of rationality. Effectively twisted with the rhetorical appeal of logos is pathos: a running passion of courage and passion. ââ¬Å"It is with passion, courage of conviction, and strong sense of self that we take our next steps into the world. â⬠This choice of figurative language and loaded word usage conveys a strong sense of emotion out of Elle personally, as well as her audience she shared this enduring journey with. She then concludes the speech with, ââ¬Å"You must always have faith in people. And most importantly, you must always have faith in yourself. â⬠She is encouraging her fellow classmates to lead their lives and enter the law world with confidence in themselves and others. These few words Elle says are meant to motivate the audience into believing in themselves, and leading a successful confident life; she grew with them and because of them and wishes the best for her class. This speech was very moving and emotional for the audience. Also, the speech has deliberative qualities because it is giving advice and hope for the future. It is rhetorically effective in persuading her class into leading their lives with confidence and passion successfully with the use of ethos, logos, and pathos.
Wednesday, December 4, 2019
Medgar Evers Essays - Social Philosophy, , Term Papers
Medgar Evers . ?Southern Justice? is a very powerful film. Throughout this course we have studied many theorists and I believe that some of their theories on society and social relations are applicable. Karl Marx's dialectical materialism, Emile Durkheim's mechanical and organic societies, and WEB Dubois' race relations theory all can be related. Social theories can be helpful, though, in the quest for justice, for the simple reason that if something is understood answering the question, why, it can then be fixed. Mrax's dialectical materialism is a theory that gives a rough outline of history, giving general stages to which it may fit. Growth, change, and development take place through a naturally occurring struggle of opposites, a process that individuals cannot influence. He uses this philosophy to explain that only matter exists, so that the existence of the mind, social institutions, etc., must be explained in material terms. That change occurs when opposing forces, thesis and antithesis, lead to the production of higher forces, synthesis, according to dialectical laws. This can specifically relate to the film and also life in the United states at the time. The thesis, or prevailing status quo, is the black hatred groups in Mississippi. The thesis, oppositon to the status quo, is those who spoke out against the injustices to blacks, Medgar Evers. And the antithesis, new social order becomes new thesis, was in 1994 when the Byron Beckwith was retried and found guilty of the murder of Medga r Evers. Durkheim's types of societies, mechanical and organic are characteristic of two completely opposite forces. Mechanical is based upon caring and unconditional ?liking?, it is considered mechanical because in the physical sense each part is ?touching? the other, people interact. Organic is described as modern, having rapid change and being less direct with each individual ?part?; its based on complexity in a highly differentiated society, having multiple roles with multiple purposes. Now to attribute this the the film I can bring this to a metaphorical level. The mechanical society can be considered the slaves before they were ?set free?. But then a half a century later this society based on caring is still there, but at the same time, this new organic society is sprouting up quickly. These blacks in the south during the 1960's are being overthrown by this rising white society of technology, the organic. So what Durkheim would say about this film is that it's a society with in a societ y and the smaller is being bumrushed like a bullfighter by a bull in Spain. DuBouis studied racialism in the United States and was became very well known for his research. He noted that most blacks, after slavery, were peasants and had a theory of race relations. This theory, which was of much controversy at the time, said that segregation might serve blacks well, not specifically legal but self-imposed. He felt that blacks should group together. In the film they did, Medgar Evers had joined the NAACP, and organized demonstrations to combat the racism in the South. This documentary gave insight to the time period of the late 1950's until the mid 1990's, showing a semi-evolution of how far the racialism, the degree to which people are conscious of distinctive characteristics of people on the basis of race, in this country has come and what struggles it overcame to get into this not-even-close-to-utopia that Martin Luther King Jr. spoke of in his famous ?I have a dream?.? speech. Each of these theorists' ideas can be helpful in understanding this film and the ever changing world. Sociology
Wednesday, November 27, 2019
Smart Materials in Aerospace Industry free essay sample
Within each subsection, we will draw a relationship between the properties of the smart material and its molecular mechanism. This is followed by presenting an outline of their recent and future applications, and the experimental procedures and results done in recent researches to show the feasibility of these applications. In the Discussion section, we will be delving into the cost-effectiveness and feasibility of using smart materials in aerospace components. Finally, the conclusion will give an insight into the relationship between the use of smart materials and the design of future aircrafts. 1. Introduction Smart materials are defined as materials that can significantly change their intrinsic properties (mechanical, thermal, optical or electromagnetic), in a predictable and controlled manner in response to their environmental stimulus[1]. In general, these materials can be categorized into 3 categories, namely thermal-to-mechanical (shape memory alloys), electrical-to-mechanical (piezoelectric), and magnetic-to-mechanical (magnetostrictive). Materials engineering has undergone a major transformation in the recent decade, as atoms and molecules are no longer viewed and worked upon on the microscopic level, but now on the nanometer level. We will write a custom essay sample on Smart Materials in Aerospace Industry or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Materials requirements are becoming more complex, especially in the aerospace industry in which safety and cost-effectiveness often conflict against each other. It is no longer acceptable for materials to have a single function; they need to be multifunctional to save costs and weight. Smart materials are now replacing monolithic ones to achieve multiple functions at all scale levels. Hence, smart materials are essentially integrated into the use of aerospace components. What differentiates smart materials from normal monolithic ones? Smart materials exhibit characteristics which most scientists would term as ââ¬Ëintelligenceââ¬â¢. This includes immediacy (the ability to respond in real time); transiency (the ability to respond to more than one environmental states); self-actuation (inherent intelligence within material); selectivity (having a discrete and predictable response); and lastly, directness (response is local to the ââ¬Ëactivatingââ¬â¢ event)[2]. The performance characteristics of aircrafts are often limited by properties of materials used in both the airframe and propulsion systems. With the recent advancement of materials technology, high performance materials are created, resulting in a breakthrough in the performance and efficiency of modern aircrafts. The discovery of smart materials provides cost-effective and innovative solutions to the limitations currently faced in the design of aircrafts. These smart materials perform specialized functions when exposed to external stimuli, and they are increasingly being used to replace conventional aircraft parts for better performance. In this report, we shall look at the current and future use of these smart materials in the aerospace industry. 1. Purpose The purpose of this report is to introduce the different types of smart materials and their applications in the aerospace industry. Recent and emerging uses of these smart materials will also be presented, with brief experimental procedures and results obtained from recent researches and experiments to show the feasibility in aerospace applications. 1. 2 Background Smart material transformation was first observed on gold-cadmium, and recorded in 1932. Five year later, in 1938, the same phase transformation was observed in brass. In 1962, Beehler and coworkers discovered the shape memory effects of Nickel-Titanium alloy, and they named this family of alloy as Nitinol. The discovery of Nitinol ignites the discovery of other alloy systems with shape memory effect, and also accelerates the use of smart materials in product development. [3] Since then, aerospace companies are also exploring the use of smart materials in aircraft components. Conventional automatic control systems which use servo-valve or hydraulic actuators face a lot of limitations. These limitations include multiple energy conversions, complexity due to large number of parts resulting in large number of potential failure sites and large weight penalty, high vulnerability of hydraulic network, and frequency limitation. In contrast, the advantages from the use of smart materials actuators include the direct conversion of electrical energy to high frequency linear motion, easier transmission of electrical energy throughout aircraft, and light and compact smart materials induced-strain actuation in place of bulky hydraulic power systems. With this huge potential offered by smart materials, researchers are eager to tap on this potential, by exploring on ways to implement these smart materials into aircraft components. 1. 3 Scope This report will present the 4 common types of smart materials that are popular in the market. A brief description will be made with regards to the mechanism of how the smart materials function. The properties of the smart materials will then be related to their current and future aerospace application. This is followed by the detailed outline of the experimental procedures undertaken by past researches, as well as results obtained which prove the feasibility of using these smart materials for the aerospace applications. Finally, discussions will be made on the viability of the use of smart materials in the aerospace industry, in terms of safety, cost feasibility and future trends. . Types and Applications of Smart Materials 1. Piezoelectric Material Piezoelectricity is the generation of electrical potential in a material in response to a mechanical stress. This is known as the direct effect. It can also mean mechanical deformation upon the application of electrical charge or signal (Harrison JS and Ounaies Z, 2001). In this case, the material can serve as a sensor to detect m echanical stress. In addition, the materials can serve as an actuator when thereââ¬â¢s a large increase of size due to electrical stimuli. The two types of piezoelectric materials that are used as smart materials are piezoelectric ceramic and polymer. Properties Piezoelectric materials are widely used as they possess favorable properties such as fast electromechanical response, wide bandwidth, high generative force and relatively low power requirements (Harrison JS and Ounaies Z, 2001). In addition, piezoelectric polymers are flexible, lightweight, and have low acoustic and mechanical impedance, while piezoelectric ceramics are brittle, heavy and toxic. Mechanism Piezoelectric effect is formed in crystals that have no centre of symmetry. One end of the molecule is more negatively charged while the other end is more positively charged, hence a dipole moment exists within the molecule. This is due to both the atomic configuration of the molecule, and also the molecular shape. Polar axis is the imaginary line that runs through the centre of both charges on the molecule. The orientation of the polar axis determines the type of crystal. For monocrystal, all the moleculesââ¬â¢ polar axes are oriented in the same direction (Figure 2. 1. 1), while for polycrystal, the polar axes of molecules are oriented in different direction (Figure 2. . 2) [pic][pic] Figure 2. 1. 1 Figure 2. 1. 2 To create the piezoelectric effect, polycrystal is heated under the application of a strong electric field. The high temperature increases the rate of self-diffusion among the molecules, while the strong electric field forces almost all of the dipoles to orient in nearly the same direction (Figure 2. 1. 3) [pic] Figure 2. 1. 3 Piezoelectric ef fect can now be observed in the crystal (Figure 2. 1. 4). Figure (a) shows the piezoelectric material in its neutral state. When the material is compressed, a voltage of the same polarity as the resultant dipole moment will appear between the electrodes (Figure (b)). Conversely, the voltage will be of opposite polarity when the material is expanded (Figure (c)). Similarly, a voltage applied that is opposite to the poling voltage will cause the material to expand(Figure (d)), while an applied voltage of the same polarity will cause the material to be compressed (Figure (e)). If an alternating voltage is applied across the material, the material will vibrate with the same frequency as the signal. [pic] Figure 2. 1. 4 Advantages and Disadvantages[4] Advantages |Disadvantages | |Compact and lightweight |Brittle due to crystalline structure | |Displacement proportional to applied voltage |Produce small strains compared to SMA and magnetostrictives | |Operate over large temperature range |Cannot withstand high shear and tension | |Fast response to applied voltage(msec) |Aging of material | |Repeatable sub-nanom eter steps at high frequency |Uses active control, which can result in instability | |No moving parts |Can become depolarized (at high temperature, high voltages and large | |Function at high frequencies |stresses) | |Excellent stability | | |Easily embedded into laminated composites. Aerospace Applications Piezoelectric materials are mainly used in the aerospace industry for shape control and vibration control. â⬠¢ Tail-Buffet Suppression High performance aircrafts with twin vertical tails often face the aeroelastic phenomenon of tail buffeting, in which the unsteady vortices that emanates from the wing leading edge extensions burst and immerse the vertical tails in their wake. This results in severe vertical tail response and buffet loads, which lowers airframe life and increases maintenance costs. pic][pic] Before the development of piezoelectric actuators, various method of alleviating buffeting was used. One method was the use of hydraulic actuators to superimpose the oscillations of affected control surfaces about their hinges, so as to effect damping. However, this method has two disadvantages. Firstly, the flight control system and buffeting-minimization system must use the same degree of freedom for the same control surface, thus reducing the availabi lity of the control surface for each role. Secondly, operations are limited to low frequencies due to the difficulty of oscillation a large control surface about its hinges. Experiment The Technical Cooperation Program (TTCP) collaborated with National Research Council Canada (NRC) and Department of Defense of Canada (DND) in researching about the feasibility of using piezoelectric actuators for tail buffet suppression on a full-scale F/A-18. The full-scale aircraft was tested in the International Follow-On Structural Test (IFOST) Program rig in Australia (Yousefi-Koma A Zimcik DG 2003). The procedures for the experiment are as follow: â⬠¢ The starboard fin of the aircraft was instrumented with piezoelectric actuators over a wide area on both sides of the fin, as shown in Figure 2. 1. 5. [pic] Figure 2. 1. 5 â⬠¢ Accelerometers and strain gauges are placed strategically to measure displacements, and hence calculate the vibration amplitude. â⬠¢ Electrodynamic shakers are attached to the fin to induce structural vibration. These shakers are controlled by the test rig control system to model actual flight structural loads. â⬠¢ In the experiment, four custom-made high-power amplifiers of 2kVA rating over 200Hz bandwidth were used. Results Conclusion The experimental results have shown that the active control system using piezoelectric actuators was able to effectively suppress the buffet response of the vertical fin at high angle of attack. Amplitude reductions of up to 60% at the normal flight configuration and close to 10% in the worst case scenario were observed (Yousefi-Koma A Zimcik DG 2003). It was estimated even a small 10% reduction in vibration amplitude would double the durability of the fin. Hence, it can be concluded that with the use of piezoelectric actuators in active-control surface modal (ACSM) device to deform the control surface, the control surface not only can respond to buffeting-minimization signals, but also flight control commands. â⬠¢ Wing Flutter Damping When a structure is placed in a flow of sufficiently high velocity, an aeroelastic self-excited vibration takes place, which has a sustained or divergent amplitude. This results in dynamic instability that can get violent. This is because at high speed, the effect of the airstream can cause the coupling of two or more vibration modes such that the vibrating structure will extract energy from the airstream. The extracted energy equals the amount of energy that the structure can dissipate at the critical speed, and a neutrally stable vibration exists. However, above this critical speed, the vibration amplitude will diverge, causing structural failure. Experiment and Result The Piezoelectric Aeroelastic Response Tailoring Investigation was conducted at MIT with the support of NASA, and it aims to achieve the following objectives: determining the power consumption of the piezoelectric actuators while controlling the response of the structure; investigating optimal piezoelectric actuator placement; and, testing disturbance rejection controllers at zero airspeed (Anna-Maria Rivas McGowan). The major components of the 4-feet test model, as shown in Figure 2. 1. , consist of two primary structures: an exterior fiberglass shell, which is used to obtain aerodynamic lift; an interior composite plate that contains the piezoelectric actuators, and is made up of an aluminium honeycomb core sandwiche d by graphite epoxy plates. The plates are of [20à °2/0à °]s laminate, referenced to the wings quarter-chord which is swept 30à °, and this provides a static coupling of the bending and torsional behaviour. Fifteen groups of piezoceramic actuators patches are placed at the top and bottom of the interior plate, and they are configured to impart moments to the plate. Together with the orientation of the graphite epoxy and the wing sweep angle, the actuators can affect bending and torsional vibration of the model. Forces on the model were monitored using ten strain gauges and four accelerometers. To acquire time history data, each of the 15 piezoelectric actuator groups was activated individually, as well as in five sets of several actuator groups. The experimental results is shown in the graphs in Figure 2. 1. 7. In summary, it shows that the control system can effect successful flutter suppression and gust reduction in the model, with a 12% increase in flutter damping and 75% decrease in root-bending moment caused by gusts. This clearly shows the potential of the use of piezoelectric actuators in suppressing the detrimental effects of wing flutter. Rotor Blade Twist Outboard portion of the blade travel faster, and with the same lift coefficient, higher lift force is concentrated near the blade tip. To distribute the lift force evenly among the blades, the angle of attack is made to be lower near the blade tip, and higher near the blade root, such that the lift coefficient decreases with increasing distance from the blade root. This can be done by induced blade twisting, through the embedment of piezoelectric materials into the blade skin. Active fibre composites (AFC) are actually used, which consists of continuous, aligned PZT fibres in an epoxy layer (Figure 2. 1. ), and copper electrode films that are etched into an inter-digitated pattern to effect the electric field along the fibre direction, as shown in Figure 2. 1. 9 (Rodgers and Hagood, 1998). [pic][pic] Figure 2. 1. 8 Figure 2. 1. 9 Experiment Active Fiber Composite (AFC) was fitted into the construction of a 1/6th scale replicate of CH-47D blade model (60. 619in span and 5. 388in chord). The blade was sent for wind tunnel testing at Boeing Helicopters, PA. Three AFC plies were diagonally placed in the co-cured D-spar blade lay-up. When the fibres are activated, it causes a shear in the spar skin, which creates the blade twist effect.
Sunday, November 24, 2019
How to Put Together a Poetry Manuscript for Publication
How to Put Together a Poetry Manuscript for Publication Putting together a poetry manuscript to submit to contests or publishers is not a walk in the park. Expect it to take an hour or two a day over the span of a week, month, or even a year, depending on how much work you have, how polished the pieces are, and how much time you can afford to spend on the project.à Despite that, creating a poetry manuscript for publication is an important next step in a writers career. Heres a step-by-step guide on how to make this goal a reality. Step 1: Choose Your Poems Begin by typing (or printing from your computer files) all the poems you want to consider putting into your book, one per page (unless of course, the poem is longer than a single page). This is a chance to make any small revisions you want to make to individual poems so that you can concentrate on the shape of the book as a whole. Step 2: Plan the Book Size To get started, decide how big of a book you want to create- 20 to 30 pages for a typical chapbook, 50 or more for a full-length collection (more on exact page amounts later). You may well change your mind about this when you are actually selecting and ordering the poems, but this will give you a starting point. Step 3: Organize the Poems With the length of your book in mind, sift through all the pages you have typed or printed up, and put the poems into piles that you feel belong together in some way- a series of poems on related themes, a group of poems written using a particular form, or a chronological sequence of poems written in the voice of a single character. Step 4: Take a Step Back Let your piles sit at least overnight without thinking about them. Then pick up each pile and read through the poems, trying to see them as a reader and not as their author. If you know your poems well and find your eyes skipping ahead, read them out loud to yourself to make sure you take the time to listen to them. Step 5: Be Selective When youââ¬â¢ve read through a stack of poems, pull out any poems that no longer seem to fit in that particular pile or seem redundant, and put the poems you want to keep together in the order you want your readers to experience them. You may find yourself doing lots of reshuffling over time, moving poems from one stack into another, melding whole groups of poems together by combining stacks, or discovering new groupings that need to be separate and on their own. Donââ¬â¢t worry about it. You will likely come across new ideas for books or chapbooks and also change your mind a number of times before the poems settle into the shape of a finished book manuscript. Step 6: Take a Breather After youââ¬â¢ve pared down and reordered each pile of poems, let them sit again at least overnight. You can use this time to mull over your reading, listening for the poems that stand out in each stack and how they sound together. Pay attention to other poems that may have popped into your mind when you were reading a certain stack to see if you should add them or replace similar poems. Step 7: Reevaluate Book Length Think again about the length of the book you want to create. You may decide that one stack of related poems would make a good short chapbook. You may have a really large pile of poems that will all go together into a long collection. Or you may want to combine several of your piles to create sections within a full-length book. Step 8: Create an Actual Book Next, try actually making the manuscript into a book that you can live with and leaf through. Staple or tape your pages together put them into a three-ring notebook, or use your computer to print them out in book format. If youââ¬â¢re preparing an email or online submission, you may still want to print up the poems youââ¬â¢re considering- shuffling paper pages is easier than editing a computer file. If you have several long pieces, you may wish to lay everything out in a word processing document with the correct margins for the completed book size, to see how more exactly how many pages the collection will consume. For a typical 6-by-9-inch printed book, youll want the final page count to be divisible by four (include room for a title page, dedication page, table of contents, copyright page, and acknowledgments page in your count as well). For ebooks, the page count can be any number. If you want your document to look like a finished book when printed out, use your software to make mirror image pages when setting up your page size so that the left and right pages will face each other as they would when professionally bound, and add page numbers in a footer or header. That said, donââ¬â¢t think too much about typography or design at this point. You want simply to put the poems together so that you can read through the book and see how they interact in that order. Step 9: Choose a Title After youââ¬â¢ve decided on the length and general shape of your manuscript, choose a title for your collection. A title may have suggested itself during your sifting and ordering of the poems, or you may want to read through them again to find one- perhaps the title of a central poem, a phrase taken from one of the poems, or something completely different. Step 10: Proofread Carefully proofread your entire manuscript from beginning to end after youââ¬â¢ve put it in order. If youââ¬â¢ve spent a lot of time with the book, you may be tempted to give it only a cursory read-through. In this case, you need to set it aside for a few days or weeks so that when you come back to it you can pay close attention to each poem, each title, each line break, and each punctuation mark. You will likely find yourself making additional revisions to the poems at this point- donââ¬â¢t hold back, as this final reading may be your last chance to make changes before you send the book out into the world. Proofreading your own work is difficult- ask a friend, or two, to proofread the manuscript for you, and go through all their notes carefully. Fresh eyes will likely spot some errors that slid right by you but do not feel that you must accept every editorial change they may suggest. When in doubt about punctuation or line breaks, read the poem aloud. Step 11: Research Venues for Submission Next, itââ¬â¢s time to seek appropriate venues for submission. Use a list of poetry publishers or links to poetry contests to identify places you want to submit your manuscript. Itââ¬â¢s important to read the poetry books theyââ¬â¢ve published or the previous winners of their competitions in order to decide if you want them to publish your work. Targeting your submissions to publishers of like works can also save you time and money on submissions that would have been rejected for not being appropriate to their current catalog. Publishing is a business, and if a manuscript wouldnt fit in with others in the companys catalog, its marketing department wouldnt know what to do with it, regardless of its quality. Weed those publishers out before sending the manuscript anywhere. Keep notes on why a publisher is a good fit, to mention in your submission cover letter. Step 12: Apply! After you have selected a publisher or a contest, reread its guidelines and follow them exactly. Print a fresh copy of your manuscript in the format requested, use the submission form if there is one, and enclose the applicable reading fee. Try to let go of your manuscript after youââ¬â¢ve mailed it off- it may take a long time for you to get a response, and obsessing over one manuscript submission will only set you up for disappointment. It never hurts, however, to keep thinking about the order and title of your book and to submit it to other contests and publishers in the meantime (so long as the companies youââ¬â¢ve sent it to accept simultaneous submissions).
Thursday, November 21, 2019
Sociology unit 5 Essay Example | Topics and Well Written Essays - 750 words
Sociology unit 5 - Essay Example Jà µrry nà µÃ µds to là µarn from thà µ mistakà µs of othà µr companià µs that havà µ à µxpandà µd in Asia in gà µnà µral, and in thà µ hugà µ markà µt of China spà µcifically, and failà µd. Thà µ projà µct managà µmà µnt packagà µ shows how Jà µrry nà µÃ µds to là µarn from companià µs likà µ Lincoln and Chà µvrolà µt, which had problà µms à µxpanding duà µ to a lack of attà µntion to intà µgral host culturà µs. ââ¬Å"For many, thà µ concà µpt that thà µ way businà µss is donà µ hà µrà µ is not nà µcà µssarily thà µ way it's donà µ à µvà µrywhà µrà µ may comà µ as a rà µvà µlation. But thà µ consà µquà µncà µ of losing a dà µal or alià µnating an ovà µrsà µas businà µss contact is rà µal, whà µthà µr it rà µsults from impropà µr tablà µ mannà µrs or a propà µnsity toward thà µ abrupt hardball tactics that tà µnd to kill a dà µalâ⬠(Sharif, 2002). Thà µ kà µy to succà µss is to là µarn about thà µ h ost culturà µ, and do a lot of markà µt rà µsà µarch into how it diffà µrs from thà µ homà µ culturà µ. ââ¬Å"Whilà µ any introductory à µxposition of a culturà µ is nà µcà µssarily basà µd on a particular pà µrspà µctivà µ to somà µ dà µgrà µÃ µ, it is important to find a starting placà µ for undà µrstanding how Chinà µsà µ-Wà µstà µrn communications may bà µ facilitatà µd. ... And in à µxpanding into Gà µrmany, thà µ organization of Lincoln nà µglà µctà µd to considà µr diffà µrà µncà µs in languagà µ and culturà µ in its global rà µsà µarch. As thà µ sociologist Durkhà µim suggà µsts, not all culturà µs havà µ thà µ samà µ valuà µs. Thà µ à µxamplà µ of thà µ Chà µvy Nova mà µntionà µd abovà µ, is a good illustration of how U.S. businà µssà µs havà µ traditionally run into problà µms by rà µlying too much on a cà µntralizà µd domà µstic command structurà µ that doà µs not givà µ sufficià µnt local autonomy for markà µting and othà µr opà µrations. This is thà µ samà µ problà µm that Lincoln was running into in its Gà µrman opà µrations. That is, ovà µrall, a dynamic global à µnvironmà µnt invità µs dynamic rà µsponsivà µnà µss that is not thà µ samà µ thing as cà µntralizà µd dà µcision-making. ââ¬Å"In gà µnà µral, it appà µars that countrià µs that takà µ advantagà µ of frà µÃ µ movà µmà µnt of goods and sà µrvicà µs, labor and capital can thrivà µ in thà µ aggrà µgatà µ. Howà µvà µr, sound macroà µconomic policià µs arà µ nà µcà µssary Although thà µ numbà µr of individual gainà µrs appà µars to outnumbà µr losà µrs in incrà µasà µd globalization, it is possiblà µ that thà µ losà µrs can crà µatà µ a backlash that will oncà µ again causà µ a rà µtrà µatâ⬠(Bordo, 2002). Jà µrry nà µÃ µds to avoid mistakà µs likà µ thosà µ of Lincoln and Chà µvrolà µt, but this can bà µ rà µlativà µly à µasily donà µ by mixing third-party rà µsà µarch, markà µt profilà µs, and outsourcà µd hiring, to movà µ branch opà µrations into là µaguà µ and connà µction with thà µ host culturà µ. In this mannà µr, thà µ nà µw projà µct can succà µÃ µd whà µrà µ othà µrs havà µ failà µd. Part 2 What arà µ somà µ potà µntial mà µthods of rà µsà µarching violà µncà µ
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