Thursday, November 28, 2019

Assignment 1 free essay sample

Professor Identify the pros and cons of the partnership as a form of ownership. Discuss funding options for small businesses. Determine and discuss how managerial accounting can help managers with product costing, incremental analysis and budgeting. Discuss the basic components of the marketing process using a product or service of your choice as an example. Discuss the roles of social responsibility and technology in the marketing function. A partnership as a form of ownership is formed quite simply. When two or more people get together and come to an agreement on what type of business to take part in, then all parties share investment, profit, and of course loss. Lets discuss the pros and cons ofa partnership. Pros, one of the many things all investors would like to see out weight the cons in anything they are engaged in mentally, physically, and of course financially. First of all, one pro would be how easy it is to create a partnership. We will write a custom essay sample on Assignment 1 or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page You simply get with at least one other person come to an agreement over all the business details, and BAM you have a partnership. Some people are comfortable in erbal agreements but I personally would suggest you get all your partnership details on a written legal document Just in case. Funding is another advantage toa partnership. When two or more people come together to form a business partnership money is invested from all parties involved in turn the business has a stronger financial backing to support it. Not only will the business have a strong financial backing all partners invested may have access to outside money to support the business even further along. One of the best advantages in being in a business partnership is shared responsibility. Shared responsibility is crucial in a successful business and of course partnership. When the business starts to get a bit heavy you can hand it to your partner or partners to carry the work load for a while. You can also look to your partners for moral support when you may think things arent going as stated in your business plan. So far we have heard the pros ofa business partnership but like every bandage that fixes that painful spot you eventually have to pull it off. Cons, the opposite of Pro, the many things that all business investors need to know before investing but never want to hear. You may be thinking since it was a breeze to create this business partnership the rest will come as a breeze. You could your mind; everyone who is a partner is liable for all debts. You and your partners are all Jointly or individually liable for all debts accumulated by the business. For example, lets say your partner or partners are taking the profits the business is making and gambling with it. Your partners blow away all the profits on poker games and skip town what then, thats right you are still liable for any debt accumulated by the business. Another obvious con is your business partners will want to share the rofits made by the business. You cant assume when the business makes profit everyone will agree on saving it. Your partner or partners may want to buy cars, houses, or maybe boats. You dont have total control of the business. Business decisions are made Jointly not on your own. You may run into disagreements that in turn create the other partner to leave the business, or even lead to buying out the other partner. Pros and cons are a great way to see if youre the, partner type, if so make sure you pick the right partner or partners for your business. There are many ther factors in owning and running a business. For example, in order to get your business off the ground you have to find the money to do so. Debt financing is one way you can start up your business. Debt financing is simply going to a bank that knows you have good credit, a good standing history with them, and apply for a small business loan. In the current economy most banks can be very hesitant to offer you the loan so another way is equity. Selling a share of your business meaning you arent solely in charge or will now be sharing the profits may be scary, but it can help you start up your business. After starting up your business you now have to manage the business or appoint someone for the Job. Managing the accounting is a great way to stay on top of product cost, and budgeting. Managerial accounting is detailed data used for inside members of a company. Managerial accounting includes things like cost of the product, cost of shipping, cost of employee benefits, cost of turnover, basically every number available to you and your partners. You can determine if you have the budget to raise wages for your employees to boost employee morale. Each business owner can use the data to do their Job better. You can go to your losses data and determine if your employees are stealing from you. Then determine how much more security you will need in order to prevent product loss. If you or your manager for your business needs to determine if their product was set at the right price they could view the sales data to see if the supply met the demand. If you see that one of your items hasnt been selling very well you can set it at a lower price or you can Just order less of such product. If you see you sold a lot of a particular product you can raise the price as you see fit. You now know if you are the partner ype, you know a couple ways to possibly fund your business, and you know how to manage your data and budget. How are you going to get costumers through your door or buying your product? How will you market yourself? Lets use my dream business as an example. I would like to open up a caf © lounge that serves fair trade coffee, craft beer, and fine wines. In order for me to make any kind of better profit for my business I have to market my business. You have to give the people what they want in my case I would produce amazing cups of coffee. My business would offer a coffee with better taste, and appeal. My coffee would be made with love and not thrown at you in the pickup line simultaneously saying, NEXT. My caf © lounge would major downtown street. Location is important for my caf © lounge so doing a little research of the area by visiting throughout all times of the day to see the amount of traffic the area receives is crucial. Then maybe you can ask around the nearby stores to see if customers purchase a lot of coffee. You can even go to the nearest coffee shop and see what coffee and vibe they offer and simply ask the locals what kind of coffee they like or would like to drink in what kind of atmosphere. After finding your target market, a great location, building your business, affordable product pricing, and setting your hours of operation it is time to promote your business. You can put ads in the local newspaper, ads in local magazines, and maybe even do a commercial broadcast in the tri county area. You will have to set your product apart from all the other competitors. For me coffee is all about personality, process, and taste. In order to retain customers your employees have to be personable, professional, and building customer relationships. Then theres process, customers will see you make heir drink every step of the way making it an enjoyable experience. Lastly is taste, my employees being highly trained baristas will make you a drink to your satisfaction in a timely fashion all the while maintaining a welcoming atmosphere for my caf © lounge. Having the best tasting coffee and vibe may do Justice but for long term business it may not be enough this is when you bring in the events. Doing special events with your business such as charities, open mic nights, acoustic Jam sessions, and book clubs is a great way to attract more customers and maintain current ones. Internet is your best friend. Creating a website for your business is an amazing marketing play. It allows your customers to have 2417 access to information, and product choices. You can post updates on new product arrivals, special events, and specific information for each product you offer. The best part about having a website is they can look you up anywhere in the world that offers internet. Another great marketing strategy is purchasing ad space on other websites like a grocery franchise or sports sites. Green marketing is another great way to market your business. Customers love knowing your business is eco friendly by recycling, or using recycled aterial. By simply pushing customers to buy coffee to drink in house rather than take away conserves paper cups in turn less garbage. If customers choose to take to go anyways inform the customers all your paper products are recycled and recyclable. Offering organic treats to eat along with their coffee can promote a green business as well. In the end knowing everything there is to build, manage, and market your business your goal is to have long term profitability. You want to exceed customer satisfaction, you want to blow away the competition, and be prepared for even harder competition in the future. Assignment 1 free essay sample Can sit unsupported on floor for a period of 10-15 minutes. Is able to lean forward to pick up an object while maintaining balance. Can rotate body to look sideways and reach out to grasp a suspended object or to pick up a toy from the floor. Demonstrates energetic movements of entire body while in cot, pram or bath. Is able to advance across the floor by using rolling or squirming movements. Makes attempts to crawl and is occasionally successful. Has the ability to strand by using surrounding objects as support to achieve an upright position. But is unable to lower themselves back to the floor in a controlled fashion. When supported in a standing position, can take steps using alternative feet. Demonstrates a visual awareness of people, objects and events which occur in the environment. When offered an object, they will reach out to grab it. Handles objects eagerly and inquisitively, using hands to manipulate them for examination. We will write a custom essay sample on Assignment 1 or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Pokes at small objects with index finger and uses same finger to point at objects which are out of reach. Can pick up small objects between finger and thumb in a crude ‘pincer’ hold. Can release a held object by dropping it, but is unable to set it down in a controlled manner. Correctly follows the direction of fallen objects, including those falling out of sight. Observes actions of adjacent adults, children and animals with interest for period of a few minutes. Become steady on their feet and display more controlled movements. Can carry an object such as a toy whilst walking. Can climb onto a large chair and turn to sit on it. Kneel without any support and squat to pick up an object. Begin to run steadily but cannot avoid objects. Begin to walk upstairs using a railing, putting two feet on each step. Point to objects that they recognise. Build a small tower using 3-4 blocks. Hold their own spoon when feeding themselves. Hold a pencil with their whole hand or between the thumb and the first two fingers, known as primitive tripod grasp. Can thread large beads onto lace. walks or run by self up and down steps. can stand ,walk and hop. Skilfully climbs trees. Rides a trike expertly . Able to cross arms and legs. Able to throw, catch, Bounce and kick a ball. Dance to music Able to walk on a fine line Able to stand alone on 1 foot for about 1o seconds Can stretch touch toes without moving knees. Can grip strongly with both hands. Able to hop a short distance using both feet. Jump from objects with confidence Able to run and jump avoiding objects Hop with good balance and using both feet and kick a football Able to throw and catch with accuracy Use a two wheeled bicycle with or without stabilisers Skip alternating feet Build towers with blocks high and straight Hold a pencil, write numbers or letters, write their own name May start writing simple stories Walk along bean using arms for balance Use apparatus with skill Increased stamina Use colours naturalistic (green for grass/blue for sky Draw people with features Use a large needle to sew Can ride a 2 wheeled bike quite easily Can skip, hop and run quite confidently Begin to change in appearance and experience puberty Have more control in writing Become more detailed in drawing Growth accelerates Puberty Boys voice changes Girls breast grow Appetites increase Skin may become more oily, causing problems such as acne. Emotional, Social, Behavioural and Moral Newborn– 6 months 9 months –15mts 18 Months – 3 Years 4 – 5 Years 6 – 7 Years 8 – 12 Years 13 to 19 Years New born till 1 month:- Cuddling Shows pleasure at feeding 1-3 months:- Smiles at familiar adult Forces on adult face when being feed Starting to show emotions Take pleasure in sucking Looks in direction when someone is speaking 3-6 months:- Gets pleasure from familiar routine e. g. bedtime bath time Forces on parent/carer giver when feeding Shows enjoyment when cradled Smiles at everyone in their surrounding Stay awake for pro-longed periods At this age 70% sleep through the night 6-9months:- Copies other people emotions Starts finger foods Becomes upset when parent/carer leaves room Becomes shy around strangers Begin to share toys 9-12months:- Likes to chew/suck on objects Drinks from cup with a lid Takes pleasure in making noise with toys Gets pleasure from pointing at what they want Enjoys solitary play Likes familiar adult to be close by ( make strange) Gets pleasure from music and rhyme Know what they want when feeding and at bed time May want a comforter when unsettled

Sunday, November 24, 2019

Hypotaxis in English Sentence Structure

Hypotaxis in English Sentence Structure Hypotaxis also called subordinating style, is a grammatical and rhetorical  term used to describe an arrangement of phrases or clauses in a dependent or subordinate relationship that is, phrases or clauses ordered one under another. In hypotactic constructions, subordinating conjunctions and relative pronouns serve to connect the dependent elements to the  main clause. Hypotaxis comes from the Greek word for subjection. In The Princeton Encyclopedia of Poetry and Poetics,  John Burt points out that hypotaxis can also extend beyond the sentence boundary, in which case the term refers to a style in which the logical relationships among sentences are explicitly rendered.In Cohesion in English,  M.A.K. Halliday and Ruqaiya Hasan identify three primary types of hypotactic relation: Condition (expressed by clauses of condition, concession, cause, purpose, etc.); addition (expressed by the non-defining relative clause); and report.They also note that hypotactic and paratactic structures may combine freely in a single clause complex. Examples and Observations on Hypotaxis One December morning near the end of the year when snow was falling moist and heavy for miles all around so that the earth and the sky were indivisible, Mrs. Bridge emerged from her home and spread her umbrella. Evan S. Connell, Mrs. Bridge (1959)Let the reader be introduced to Joan Didion, upon whose character and doings much will depend on whatever interest these pages may have, as she sits at her writing-table in her own room in her own house on Welbeck Street. Joan Didion, Democracy  (1984)When I was around nine or ten I wrote a play which was directed by a young, white schoolteacher, a woman, who then took an interest in me, and gave me books to read, and, in order to corroborate my theatrical bent, decided to take me to see what she somewhat tactlessly referred to as real plays. James Baldwin, Notes of a Native Son (1955)Samuel Johnsons Hypotactic StyleAmong  the innumerable practices by which  interest or envy have taught those who live upon literary fame to disturb each other at their airy banquets, one of the most common is the charge of plagiarism. When the excellence of a new composition can no longer be contested, and malice is compelled to give way to the unanimity of applause, there is yet this one expedient to be tried, by which the author may be degraded, though his work be reverenced; and the excellence which we cannot obscure, may be set at such a distance as not to overpower our fainter lustre. This accusation is dangerous, because, even when it is false, it may be sometimes urged with probability.   Samuel Johnson, The Rambler  (July 1751) Virginia Woolfs Hypotactic StyleConsidering how common illness is, how tremendous the spiritual change that it brings, how astonishing when the lights of health go down, the undiscovered countries that are then disclosed, what wastes and deserts of the soul a slight attack of influenza brings to view, what precipices and lawns sprinkled with bright flowers a little rise of temperature reveals, what ancient and obdurate oaks are uprooted in us by the act of sickness, how we go down into the pit of death and feel the waters of annihilation close above our heads and wake thinking to find ourselves in the presence of the angels and the harpers when we have a tooth out and come to the surface in the dentist’s arm-chair and confuse his Rinse the mouth rinse the mouth with the greeting of the Deity stooping from the floor of Heaven to welcome us when we think of this, as we are so frequently forced to think of it, it becomes strange indeed that illness has not taken its place with love and battle and jealousy among the prime themes of literature. Virginia Woolf, On Being Ill, New Criterion (January 1926) Oliver Wendell Holmes Use of HypotaxisIf you have advanced in line and have seen ahead of you the spot you must pass where the rifle bullets are striking; if you have ridden at night at a walk toward the blue line of fire at the dead angle of Spottsylvania, where for twenty-four hours the soldiers were fighting on the two sides of an earthwork, and in the morning the dead and dying lay piled in a row six deep, and as you rode you heard the bullets splashing in the mud and earth about you; if you have been in the picket-line at night in a black and unknown wood, have heard the splat of the bullets upon the trees, and as you moved have felt your foot slip upon a dead mans body; if you have had a blind fierce gallop against the enemy, with your blood up and a pace that left no time for fear if, in short, as some, I hope many, who hear me, have known, you have known the vicissitudes of terror and triumph in war; you know that there is such a thing as the faith I spoke of. Oliver Wendell Holmes Jr., The Soldiers Faith (May 1895)Holmes, a thrice-wounded officer of the Twentieth Massachusetts Volunteers, knew whereof he spoke, certainly. The passage [above] is drawn up like lines of battle, if clauses (the protasis) that one has to pass one-by-one before reaching the then clause (the apodosis). The syntax is, in the literal sense of the Greek, a line of battle. The sentence ... seems to map a series of Civil War skirmish lines. This is hypotactic arrangement for certain. Richard A. Lanham, Analyzing Prose (2003) Parataxis and HypotaxisTheres nothing wrong with parataxis. Its good, simple, plain, clean-living, hard-working, up-bright-and-early English. Wham. Bam. Thank you, maam.[George] Orwell liked it. [Ernest] Hemingway liked it. Almost no English writer between 1650 and 1850 liked it.The alternative, should you, or any writer of English, choose to employ it (and who is to stop you?) is, by use of subordinate clause upon subordinate clause,  which itself may be subordinated to those clauses that have gone before or after, to construct a sentence of such labyrinthine grammatical complexity that, like Theseus before you when he searched the dark Minoan mazes for that monstrous monster, half bull and half man, or rather half woman for it had been conceived from, or in, Pasiphae, herself within a Daedalian contraption of perverted invention, you must unravel a ball of grammatical yarn lest you wander forever, amazed in the maze, searching through dark eternity for a full stop.Thats hypotaxis , and it used to be everywhere. Its hard to say who started it, but the best candidate was a chap called Sir Thomas Browne. Mark Forsyth, The Elements of Eloquence: Secrets of the Perfect Turn of Phrase (2013)Classical and 18th-century hypotaxis suggests the virtues of balance and order; biblical and 20th-century parataxis (Hemingway, Salinger, McCarthy) suggest a democratic leveling and an inversion of natural power relations (the voice of the expatriate, the disillusioned, the outlaw). Hypotaxis is the structure of sober refinement and discrimination; parataxis the structure of intoxication and divinely inspired utterance. Timothy Michael, British Romanticism and the Critique of Political Reason  Ã‚  (2016) Characteristics of Hypotactic ProseHypotactic style allows syntax and structure to supply useful information. Instead of [a] simple juxtaposition of elements by way of simple and compound sentences, hypotactic structures rely more on complex sentences to establish relationships among elements. Perelman and Olbrechts-Tyteca (1969) observed, The hypotactic construction is the argumentative construction par excellence. Hypotaxis creates frameworks [and] constitutes the adoption of a position. James Jasinski, Sourcebook on Rhetoric: Key Concepts in Contemporary Rhetorical Studies  (2001)The subordinating style orders its components in relationships of causality (one event or state is caused by another), temporality (events and states are prior or subsequent to one another), and precedence (events and states are arranged in hierarchies of importance). It was the books I read in high school rather than those I was assigned in college that influenced the choices I find myself making today two actions, one of which is prior to the other and has more significant effects that continue into the present. Stanley Fish, How to Write a Sentence and How to Read One  (2011)

Thursday, November 21, 2019

National Subsidiaries of Multinational Companies Research Paper

National Subsidiaries of Multinational Companies - Research Paper Example Global business is constantly evolving and competition across businesses has led to a surge in companies expanding across domestic borders. Multinational companies and their subsidiaries have become an increasingly important part of the global business landscape. How the business is conducted is dependent on the relationship between the headquarters of the MNC and its subsidiaries. Various factors affect this relationship and in turn, determine the ultimate positioning of power in the organization.  Organization structure affects communication patterns and information flows within the MNC. Organization structure facilitates control and improving structural fit with organization strategy serves to bring the goals of the subsidiaries and the MNC on par with each other.  The aim of the paper will be to show that national subsidiaries of multinational corporations are powerless and are totally dependent on their parent company or the host government. The paper starts with some inform ation on MNC-Subsidiary relationship and moves on to discuss the organization structure and the various control mechanisms that are required to ensure that goals of subsidiaries and the headquarters are in parity with the organizational goal. Centralization and decentralization in MNCs, and how it affects the level of control and decision making in the organization is discussed. Moreover, the paper discusses the effects of the language barrier, geographical distance, and human resource management practices on the headquarters-subsidiary relationship and sheds light on the level of autonomy in each situation. The choice of entry as an investment in foreign markets is explained and how the two choices affect the level of control exercised by the headquarters is discussed. The paper ends with a conclusion.

Wednesday, November 20, 2019

Women Suffrage Thesis Example | Topics and Well Written Essays - 1750 words

Women Suffrage - Thesis Example n the hands of their physically stronger counterparts and tend mostly the home and the hearth, not to say that they could even if they wanted ,for power in the barbaric ages was the privilege of the brute . Neither could the vanquished classes, whatever the gender, theoretically come anywhere near it till the age of democracy ushered in by the thinkers and the educated classes of this world came to blossom. And education and knowledge, once it began to infiltrate the recesses of the kitchens, brought with it a desire for self determination and empowerment. Though subservience of women to men is advocated by various religious texts, it is a sad fact that duties demanded in return are found fantastically wanting. On the other side, the premise that women are totally excluded from decision-making is also not true, acknowledged popularly in the phenomenon known as â€Å"pillow talk†. A notable example from a religious text is the case of the Pilate’s wife, a woman of better sense and judgment and goodness than her husband, advocating leniency for Jesus Christ who was under the sentence of crucifixion.[Mathew 12;34,KJV]. Similar instances abound in history, which perhaps if heeded to, would have made the world a vastly better place and perhaps saved it from many a catastrophe. â€Å"Do not put such unlimited power into the hands of the husbands. Remember all men would be tyrants if they could†, said Abigail Adams Abigail Adams  Quotes . AbigailAdams  (1744-1818) By Jone Johnson Lewis, About.com Guide Interesting and amusing sallies for and against the cause were presented in the â€Å"Woman’s Wrongs† and the Woman’s Rights by Rev. John Todd [Todd] and the â€Å"Woman’s Wrongs† by Mary Dodge [Dodge] . Early in the 18th century, the ideas promoted by Mary Astell , English philosopher in her epic letter Serious Proposal to Ladies, 1697,was one of the pioneers who led the charge saying [founded on Descartes theory of dualism which advocated that mind is not

Sunday, November 17, 2019

Corporate Compliance Plan Essay Example | Topics and Well Written Essays - 2000 words

Corporate Compliance Plan - Essay Example At that time, the total fan manufacturing process was transferred from Michigan to China, plus the Pontiac, MI, facility was re designed for the production of traditional plastic parts. Riordan Manufacturing is a worldwide plastics producer employing almost 700 individuals with estimated annual income of more than $40 million. The corporation is entirely possessed by Riordan Industries with income aggregate of more than of $1 billion. The corporation's research and development is carried out at the business headquarters within San Jose. Riordan's chief clientele are automotive parts producers, aircraft producers, the Department of Defense, drink makers also bottlers, and machine producers. The company is accountable and responsible for the reliability as well as fortification of its production information. All the company accounts and documents are the one and only asset of the corporation and thus measured as being classified by its character, except as offered by law or else guideline. Preventing illegal utilization of the corporation's resources. It is the compulsion of all business councils to defend the resources of the company. Company assets, like the office provisions, office gear, with property, may not be utilized for personal benefits. every misuse or fraud of caused by utilization of the company's finances, information, gear, amenities otherwise other resources may well be deemed as criminal actions and can fetch harsh employment also legal penalties. A. preserving the company's reflection: The corporation's status and individuality are one of the most precious assets. All of the company legislatures are anticipated to perform themselves within a mode that replicates optimistically on the company's reflection and individuality, both internal and external. No one should act in a way that adversely influences the repute otherwise reflection of the corporation with employees, customers or else with the community. every company representative ought to make an effort to contract practically with the company's

Friday, November 15, 2019

Formation Processes of Silicon Carbide

Formation Processes of Silicon Carbide Effect of silicon carbide dispersion on the microwave absorbing properties of silicon carbide-epoxy composites in 2–40 GHz Yaw-Shun Hong, Tzu-Hao Ting, Chih-Chia Chiang, Ken-Fa Cheng Abstract Wide-band, strong absorption with low density and thin matching thickness are essential for electromagnetic wave absorbers. In this study, silicon carbide powders were successfully synthesized by the method of preheating combustion synthesis in nitrogen atmosphere and introduced into epoxy resin to be microwave absorber. The spectroscopic characterization of the formation processes of silicon carbide was studied by using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Microwave absorbing properties of the silicon carbide and thermal plastic resin were investigated by measuring reflection loss in the 2-18 and 18-40 GHz microwave frequency range using the free space method. It was found that the composite specimens of the silicon carbide and thermal plastic resin had the best microwave absorption due to the reflection losses between from -10 to -19.5 dB and from -3 to -9.1 dB at frequencies between 2-18 and 18-40 GHz. Keywords: Microwave absorption; Silicon carbide; X-ray diffraction; Scanning electron microscopy 1. Introduction During the past a few decades, the development of new microwave absorbing composites is being encouraged because these materials achieve better efficient ways for reducing the level of electromagnetic wave pollution generated by electronic and telecommunication systems. Recently many applications have been carried out on the microwave technology in the frequency range of 2–40 GHz [1-3]. To reduce the radar signature, many types of electromagnetic (EM) wave-absorbing materials have been designed to meet the requirements of both commercial and military affairs. The materials used as electromagnetic wave-absorbing materials can be classified as magnetic, dielectric or a hybrid, respectively. Actually, these classifications are based on the mechanism of the wave-material interaction, which varies based on the types of absorber centres used. Ideal microwave absorber should exhibit low-reflecting properties, strong reflection loss in broad bandwidth, low density and small thickness to facilitate their applications in many fields [4, 5]. As we know, the composite materials generally represent the natural interface between two worlds of chemistry each with very significant contributions to components interact at a molecular level. Dielectric polymer-matrix materials can include two different compounds with complementary properties in a single material and can be combine to reinforce or modify each other in specific applications. Extensive studies have been carried out to develop new and highly efficient absorbents, and various absorbers (such as conductive metal powder, ferrites, carbon products, chiral materials, synthetic organic fibres, etc.) have been isolated or synthesised [6-9]. However, in these materials, most absorbers like traditional ferrite powders and carbon series are unable to be employed at higher temperatures due to lower Curie temperatures and oxidation problem, respectively [10-14]. It is becoming very urgent to look for new microwave absorbers making electromagnetic wave disappearance by interfere nce, or satisfying the requirements of higher structural strength and temperature resistances in higher temperature environments. Due to their physical and electronic properties, Silicon carbide (SiC) is an important carbide, studied as a structural ceramic for a long time and has attractive properties, such as excellent strength and chemical resistance at high temperatures, semi-conductivity, high thermal stability and thermal conductivity, make it an attractive material in high-temperature structural, electric and functional applications [15-20]. On the other hand, Silicon carbide (SiC) is one of the preferred and best characterised filler materials and is used in combination with polymers in military or civilian products [20-23]. Meanwhile, to the best of our knowledge, there are very few reported experimental results on the electromagnetic wave adsorption of silicon carbide between 2–18 and 18–40 GHz. Here, we present the microwave absorbing properties of the silicon carbide reinforced epoxy resin composites tested at 2–18 and 18–40 GHz using arch method, which was chosen to validate the absorbing efficiency of microwave absorbing material [24, 25]. The NRL (Naval Research Laboratory) arch free-space measurement method is a well-established measurement system for validating the absorbing efficiency of flat materials over broad frequency ranges. The NRL arch was widely used initially by the U.S. Navy for research testing purposes, and is a microwave measurement system that can measure the free space radar reflection coefficient. The reflection loss diagram showed that the powder silicon carbide-epoxy resin with 30-50 by weight ratio of silicon carbide to polymer is a good candidate material for use as a broad frequency microwave absorber. The NRL Arch is the industry standard for measuring the free space radar reflection coefficient of flat radar absorbing materials (RAM). It was first developed by the U.S. Naval Research Lab, the NRL. The NRL Arch is a wellestablished, freeà ¢Ã¢â€š ¬Ã‚ space measurement system for testing the absorbing efficiency of flat materials over broad frequency ranges. It was originally designed at the United States Naval Research Laboratory (NRL) in 1945 for measuring angularà ¢Ã¢â€š ¬Ã‚ dependent performance of broadband Radar Absorbing Materials (RAM). 2. Experimental 2.1 Preparation of silicon carbide The silicon carbide powders were synthesized by the method of preheating combustion synthesis in nitrogen atmosphere, using silicon powder (à ¯Ã‚ ¼Ã…“45 ÃŽ ¼m, 99.9% purity, mass fraction) and carbon black (20-40 nm, 99.9% purity) as the raw materials. The molar ratio of silicon powder and carbon black was blended in a molar ratio of Si-50% C. The mixed powders were poured into a graphite crucible and initiated by pre-heating at 1350 à ¯Ã¢â‚¬Å¡Ã‚ °C with the heating rate of 40 à ¯Ã¢â‚¬Å¡Ã‚ °C / min in a 0.1 MPa nitrogen atmosphere inside a resistance. After the synthesis process, the product was heated at temperature 850 à ¯Ã¢â‚¬Å¡Ã‚ °C for 4 h in atmosphere condition to burn the excess carbon. The final cleanup to remove Si was carried out by leaching in HF, rinsing in distilled water and drying. 2.2 Preparation of silicon carbide-epoxy composites The composite specimens were prepared by molding and curing the mixture of silicon carbide and a thermal-plastic epoxy resin to be silicon carbide-epoxy composites. The mixing ratio of specimen powders to epoxy resin was 30 %, 35 %, 40 %, 45 % and 50 % by weight and the corresponding samples are marked with S-1, S-2, S-3, S-4 and S-5, respectively. Molding was carried out in a hydraulic press at 5 Mpa pressure and 80 à ¯Ã¢â‚¬Å¡Ã‚ °C for 1.5 h, obtaining specimens of 180 mm Ãâ€" 180 mm with thickness of 2 mm for reflectivity measurements [26]. 2.3 Experimental techniques The characteristics of silicon carbide such as diameter and morphology were observed by scanning electron microscopy with EDX (SEM, HITACHI S-4800). The crystalline phases of the silicon carbide were analyzed by X-ray diffraction with Cu KÃŽ ± radiation. The performance test of radar absorbing was evaluated by reflectivity using Arch method. Reflectivity R is ratio of radar-absorbing material (RAM) reflective power to metallic plate reflective power, which can be expressed as: (1) Where Pa is the reflective power of the sample and Pm is the reflective power of metallic plate. In practice, we surveyed the ratio of the reflective power of the sample and the reflective power of metallic plate to the same reference signal that was in direct proportion to transmit, respectively. , (2) Where Pi is the reference signal. So (3) The Reflectivity was finally expressed with db as: (4) The schematic diagram of the experimental setup was shown in Fig. 1. The reflectivity of the samples were measured and compared with that from a plane metallic plate. Measurement was carried out using an HP8722ES network analyzer in the swept frequency range of 2–18 and 18–40 GHz. All samples were made 180 Ãâ€" 180 mm with thickness of 2 mm in order to cover the metallic plate for reflectivity measurements. 3. Results and discussion 3.1 Structure characterization Figure 2 shows the scanning electron micrograph of the fresh silicon carbide. From this figure it is evident that majority of the silicon carbide particles are angular in nature. The surface composition of silicon carbide particles was distinctly determined with SEM-EDX spectrum (Fig. 2c). EDX analysis reveals that the SiC composed of the Si and C elements. The XRD pattern for the silicon carbide samples is presented in Fig. 3. From the XRD patterns, it can be easily observed that ÃŽ ²-SiC was formed by present major peaks located at 35.6 (111), 41.2 (200), 60.1 (220), 71.8 (311) and 75.1 (222), all of which are attributed to ÃŽ ²-SiC (JCPDS no. 29-1129). So the prepared product is pure ÃŽ ²-SiC powder. This result agrees well with the results obtained for ÃŽ ²-SiC prepared by the literature methods [27-30]. 3.2 Microwave absorbing properties in 2–18 GHz The different content of produced silicon carbide powders may change the impedance matching condition of microwave-absorption. Thus, as shown in Fig. 4, the reflection loss (RL) varies with filler content of the silicon carbide-epoxy composite in the frequency range of 2–18 GHz. It can be seen that with increasing the addition of silicon carbide and a maximum reflection loss of -19.5 dB was obtained at 7 GHz with the thickness 2.0 mm. Meanwhile, the centers of the reflection loss peaks for silicon carbide-epoxy composites move gradually to the lower frequencies (from 7 GHz to 4 GHz for S-1, -2, -3, -4 and -5 composites, respectively), which may also be attributed to the enhanced silicon carbide content. These results are consistent considering that the mechanism of wave absorption is mainly due to heat dissipation effects (on the condition of same thickness) of silicon carbide satisfying the perfect absorption condition and, therefore, are strongly linked to the conductivity o f medium. Fig. 5(a) shows the three-dimensional of RL values for silicon carbide-epoxy composites in terms of volume fraction at frequencies between 2 GHz and 18 GHz. Silicon carbide-epoxy composites absorbers present the effective absorption (RL 3.3 Microwave absorbing properties in 18–40 GHz Fig. 6 shows the experimental absorption characteristics of silicon carbide-epoxy composites in terms of volume fraction at frequencies between 18.0 GHz and 40.0 GHz. The variation of matching frequency with silicon carbide volume fraction is shown in Fig. 6. As we can see, the silicon carbide-epoxy composites displayed poor microwave absorption performance. Among the silicon carbide-epoxy composites, the powder prepared using an silicon carbide content of 45 wt% (S-4) had a pronounced absorption band at 25.2 GHz with a reflection loss of -9.1 dB. The significant improvement was considered to be resulted from a better impedance matching due to the certain ratio of silicon carbide, which might be ascribed to the special structures in the silicon carbide-epoxy composites. Fig. 7 (a, b) displayed the visual three dimensional and color-filling patterns of microwave absorption values of the silicon carbide-epoxy composites with different weight ratio of the silicon carbide. Obviously, S-1, S-2, S-3 and S-5 silicon carbide-epoxy composites absorbers present weak absorption (RL 4. Conclusion In summary, we have successfully prepared the silicon carbide via combustion method in nitrogen atmosphere. XRD and SEM studies have established formation of the silicon carbide material. Experimental results indicate that the silicon carbide-epoxy composites in 2–18 GHz exhibit better absorption performances than in 18–40 GHz. The shifts of the attenuation peak in microwave absorbing properties of composites are due to increasing the content of silicon carbide in all frequency range of 2–40 GHz. It was found that the optimum reflection loss could be obtained over a broad frequency region on the silicon carbide-epoxy composites. 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Wednesday, November 13, 2019

Utopia Essay -- essays research papers

Utopia Utopias are generally said to be societies in which the political, social and economic troubles hampering its inhabitants has been done away with. Instead the state is there to serve the people and ensure the peacefulness and happiness of everyone. The word utopia, which means "no place" in Greek, was first used to mean a perfect society in 1516 in the publication of Saint Thomas More's story "Utopia". The story depicted life as it was with its people and social institutions on an imaginary island. More's Utopia gained critical acclaim and a wide audience. The term was subsequently used by all prominent social thinkers and visionaries to define other concepts of this kind. During the 19th century many attempts were made to actually establish communities which followed the beliefs of a utopian society. Most were experiments in utopian socialism. Although they differed considerably in their specific views, most of them agreed that ideal societies could be created without much difficulty. They felt all that was needed was to have the formation of a few small, cooperative communities made up of their followers. The comte de Saint-Simon regarded technological progress and large scale economic organization as being the most important keys to the establishment of these communities. It was felt that industrial growth was the key to happiness for people in the future. Another visionary, Fourier, was quite the opposite of Saint-Simon. He Spoke strongly against the use of industry. His opinion was that agricultural communities would be better suited for this situation. He favored these communities as he saw them as small, self-sufficient and more importantly, free from the restraints that were being imposed by civilization. Experimental societies based on the theories of the utopians were also set up in Europe and the Unites States. They included Robert Owen's cooperative communities in New Harmony, lnd., and New Lanark, Scotland. Most of these did not survive long. One of the longer lasting of these communities was the Oneida Community. It lasted from 1848 to 1881. By the middle of the 19th century the utopian socialists were beginning to be eclipsed by more militant radical movements. These... ...eat big leather lazyboy in front of the t.v. would also be required. Electronic gizmos of all shapes and sizes would surround me. Then as my children grew older, I'd hope to be able to provide them with the opportunity to receive a college education, as this is key to success. To see them go on to do well for themselves would make me very proud. By then I would start to contemplate retirement. I'd hope to have a nice little nest egg stashed away so that I may live comfortably for the rest of my life. I hope to grow old peacefully, and as gruesome as this may sound, I hope that when my time does come, I die in my sleep. Never felling a thing. I know that many of the things I just mentioned may never happen. Many of my wishes are just that, wishful thinking. It is just a concept of a type of life I would like to live. Real or not. But after all, its MY private utopia. Plus we must remember that utopias in these times in their most technical definition do not exist. They are merely ideas and concepts of the world as man would wish it were. Being a man in this world of ours, I have my wishes too.