8 Inflectional Morphemes in English Full List Examples

Table of Contents Introduction: Inflectional Morphemes in English Inflectional Morphemes: Examples Inflectional Morphemes: Main Features Morphological Composition 8 Inflectional Morphemes Second Language Phonology Phonological Processes Parameters of English Consonants Conclusion: Inflectional Morphemes in English Works Cited Introduction: Inflectional Morphemes in English According to the Cambridge dictionary, the meaning of inflection in grammar is â€Å"a change in or addition to the form of a word that shows a change in the way it is used in sentences.† Inflectional morphemes system in English is regarded as quite â€Å"poor† since it has quite â€Å"little inflectional morphology† as compared to other languages (Denham Lobeck 158). Thus, there are only 8 inflectional morphemes that indicate at the form and the tense of a word.Advertising We will write a custom term paper sample on 8 Inflectional Morphemes in English: Full List Examples specifical ly for you for only $16.05 $11/page Learn More The list of inflectional morphemes includes: s – is an indicator of a plural form of nouns s’ – marks the possessive form of nouns s – is attached to verbs in the third person singular ed – is an indicator of the past tense of verbs ing – indicates the present participle en – marks past participle er – is attached to adjectives to show a comparative form est – is an indicator of the superlative form of adjectives Inflectional Morphemes: Examples Here are some examples of inflectional morphemes using in English. The verb â€Å"to mark† has many forms: mark (basic form), marking (present continuous), marked (past simple), etc. We add the inflectional morphemes (the endings) like -ed and -ing to the basic form of the verb to indicate its tense. Inflectional Morphemes: Main Features It is worth mentioning that inflectional morphemes do not creat e new words. They only change the form of a word indicating â€Å"grammatical function† of a word (Denham Lobeck 69). Thus, certain inflectional affixes serve their purpose to create specific forms of the word. That’s their main difference from another morphemes type – derivational morphemes that are used to create new words in English. Due to the peculiarities of the English morphology, morphemes indicating plural form and past tense form can vary in pronunciations. So, some inflectional morphemes can have several allomorphs. For instance, the choice of allomorph in English morphology may depend on phonetic or grammatical conditions (Brinton Brinton 91). Allomorphs that are phonetically determined indicate plural forms and present tense form [s], [z], [iz], and signs of the past tense form [t] and [d] in inflectional morphemes. Examples of this can be found when a word ends in a voiceless consonant or a fricative (cat, map). In these cases, the speaker should choose allomorph [s]. Whereas for words ending in voiced consonants or vowels, it is necessary to use allomorph [z], in case a word ends in affricate allomorph [iz] should be used. As for grammatically conditioned allomorphs, some of them are fish, sheep, mice, children, oxen, criteria, stimuli. They are formed by not productive endings, which are â€Å"linguistic fossils† or borrowings (Brinton Brinton 92). Morphological Composition In terms of the concept of inflectional morphemes, it is also important to single out the concept of morphs. According to Brinton and Brinton, a lexical morph is â€Å"the concrete realization of a morpheme,† i.e., it is the way the word is actually pronounced (Brinton Brinton 83).Advertising Looking for term paper on linguistics? Let's see if we can help you! Get your first paper with 15% OFF Learn More For instance, such words as fish or sheep, do not have the definite realization of plural form, they are written and pro nounced in the same way as in singular. However, the word is used in the plural form (due to context). In English morphology, words have zero morphs, which do not have a phonetic or written realization. There are two types of morphs, free and bound. Bound morphs cannot occur as separate words; they can be only components of a word, whereas free morphs can be a separate word; they are usually roots. It is necessary to point out that a morph can contain several lexical affixes in English. Thus, a simple word can have quite complicated morphological composition. This can be illustrated by the morphological analysis of the words me and his: me 2 morphemes { I } + {accusative form} his 2 morphemes { he } + {possessive form} Thus, there are no inflectional morphemes, and no allomorphs are used. Instead, new stems are created. In this case, such change is determined by the historical aspect. These forms were developed from the word form from Old English. 8 Inflectional Morphemes Second La nguage Phonology Phonology is one of the first important aspects that influence affixation in English (Brinton Brinton 11). It is the study of sounds in English. Reputedly, the range of sound which people can produce is extensive. People do not use in their native language every sound they can produce; the scope of sounds in each language is quite limited. Thus, in different languages occur sounds not used in other languages. For instance, such sounds as [Δ] can be quite confusing for learners of English as the second language, especially when there is no such sound in their native language. The sound [Δ] is often substituted by [d]. One can explain this by the parallel distribution of these sounds.Advertising We will write a custom term paper sample on 8 Inflectional Morphemes in English: Full List Examples specifically for you for only $16.05 $11/page Learn More Thus, [Δ] is produced at the upper teeth, and [d] is produced at the upper g um. This can be an explanation of why these sounds sounds often substitute each other. For example, the following group of words can illustrate this phenomenon: that [dat], dog [dÉ‘É ¡], head [hÃŽ µd], leather [lÃŽ µÃŽâ€Ã‰â„¢] leader [liΔə]. Other examples of commonly substituted sounds are the following: [s] and [ÊÆ']. This set of sounds can also be characterized by parallel distribution; both sounds are produced approximately likewise, at the upper gum. These sounds confusion may be exemplified by the following sets: sing [ÊÆ'É ªÃ…‹], sat [sat], loss [lÉ‘s], fish [fÉ ªÃŠÆ'], miss [mÉ ªÃŠÆ'], push [pus]. Of course, native speakers differentiate easily between these sounds and, in fact, such sounds can be characterized by complementary distribution for them. However, a learner for English can confuse these sets of sounds due to their similar place of articulation, especially if there are no such sounds in the native language of this learner. In case if similar sounds occur in the native language, a learner of English will differentiate between these sounds as well, and they are in the complementary distribution for this learner. However, if there are no such sounds in the native language the pairs [Δ] and [d], [s] and [ÊÆ'] will be in parallel distribution and, for example, such pairs as [Δ] and [b], [s] and [k] will be in complementary distribution. Thus, for such learners (not accustomed to such sounds) the following words will be pronounced as follows: Daddy [dà ¦di], either [aidÉ™], loathe [lÉ™ud], ship [sip], pass [pÉ‘ÊÆ'], dish [diÊÆ'], usher [ÊÅ'sÉ™]. Phonological Processes There are several major phonological processes in English. One of the most common phonological processes is assimilation. Assimilation is a process when one sound influences the other sound. This rule can be illustrated by the impact of nasal consonants on vowels. For instance, the sound [à ¦] (like in words cat [kà ¦t], sat [sà ¦t]) will be pronounced like [à £] before nasal sounds: Pam [pà £m], Sam [sà £m], pan [pà £n]. Another important phonological process is aspiration. In English voiceless consonants are aspirated when they occur at the beginning of the word or at the end of the word.Advertising Looking for term paper on linguistics? Let's see if we can help you! Get your first paper with 15% OFF Learn More It is necessary to tell that such kinds of consonants are not aspirated when they are preceded by s. So the pattern /t/ – [tË º] illustrates this phonological process. It can be exemplified by: sat [satË º], met [me tË º], let [le tË º]. Of course, many words can be characterized by several phonological processes. For instance, such set like /tÉ›npeÉ ªÃŠ ¤z/ – [tÊ °Ã‰â€ºmpÊ °eÉ ªÃŠ ¤Ã‰â„¢z] displays such processes as assimilation [n] – [m], aspiration [tÊ °], deletion [Ê ¤z] – [Ê ¤z]. Another phonological process, exchanging syllable onsets, is often displayed in children English (Denham and Lobeck 118). For instance, the word elephant can be pronounced as [É›fÉ™lÉ›nt]. Another phonological process is determined by dialectal varieties. For instance, in African American Vernacular English, final voiced consonants are often devoiced (YavaÅŸ 62). This process can be illustrated by the following examples: [hÉ›p], [pik]. One more di alectal variety is Southern English, which is characterized by the substitution of [e] by [i] before nasal consonants (YavaÅŸ 82). Parameters of English Consonants 17 is between both 3s, 11 is vibrating, and 8-9 is closed. Sound: [Δ] 16 is completely touching 5, 11 is vibrating, and 8-9 is closed. Sound: [r] 16 is close to 5, 11 is open and 8-9 is open. Sound: [l] 14 is completely touching 8, 11 is open, and 8-9 is closed. Sound: [k] 14 is completely touching 8, 11 is vibrating, and 8-9 is open. Sound: [g] 2 on the bottom is close to 3 on the top, 11 is vibrating, and 8-9 is closed. Sound: [v] Both 2s are completely touching, 11 is open, and 8-9 is closed. Sound: [p] Both 2s are completely touching, 11 is vibrating, and 8-9 is open. Sound: [b] Conclusion: Inflectional Morphemes in English Inflectional morphemes show whether a word has the plural, comparative, or possessive form, and whether it is in a past or present tense. Unlike derivational morphemes, they do not create n ew words. This essay tells how many inflectional morphemes are there in English, provides the full list of them, and gives some examples of inflectional morphemes using. Works Cited Brinton, L. J. Brinton, D. M. The Linguistic Structure of Modern English. Philadelphia, PA: John Benjamins Publishing Company, 2010. Denham, K. Linguistics for Everyone: An Introduction. Boston, MA: Cengage Learning, 2009. YavaÅŸ, M. S. Applied English Phonology. Malden, MA: Wiley-Blackwell, 2006. This term paper on 8 Inflectional Morphemes in English was written and submitted by user PrettyBoy to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

The Decision To Drop The Atomic Bomb Essays - Japan, Free Essays

The Decision To Drop The Atomic Bomb Essays - Japan, Free Essays The Decision To Drop The Atomic Bomb Maria Tidwell World Cultures III Professor Longfellow 26 November 2000 The Decision to Drop the Atomic Bomb On August 6th 1945, the world changed forever. The United States dropped the first Atomic bomb over the city of Hiroshima, Japan. The surviving witness Miyoko Watanabe describes her experience: I came out of the front dooran intense yellow, orange and white light overwhelmed me the light was thousands of times brighter than a magnesium flash gunI went inside to hideThere were strange sounds, crashing noises and jolts, and I kept no track of the timeI locked back to see how my mom was. She looked worse then a devilish witch. (47) The heat was intolerable; everywhere Miyoko looked there were wounded and dying people, bleeding from all over their bodies like her mom. Miyoko continues, Those who fled from one or one and a half kilometer from the hypocenter really did have to step over bodies and shake off hands grasping their legs for help. When someone caught hold of their shoes they just had to leave their precious shoes and flee otherwise they wouldnt survive(49). A friend of Miyoko told her that he had to leave his sister to die in the flames to save his life. That day, according to the Japan Times, 140,000 died as a direct result of the bombing. Later the total number of victims claimed in Hiroshima City came to 217,137. There is one question that comes to my mind reading these terrible stories from the victims of Hiroshima; was this necessary? Scholars have discussed the question for more than half a century. However, they all agree that the answer to this question does not make the use of atomic weapons seem less awesome or less awful, but it merely throw different light on it. The main argument defending the decision to drop the bomb is that it was necessary to end the war. Richard B. Frank in his book, Downfall: The End of the Imperial Japanese Empire defends the American decision. Relying on a host of original documentary sources, most notably the Japanese messages that were intercepted and decoded by the American forces, he presents a researched work that attempts to explain what might have happened if the bombs had not been dropped. The reader is left with the unshakable conclusion that the use of the bomb was a necessary evilthat the government of Japan was not ready to surrender, and even after the bombing of Hiroshima, the decision was to fight on. However, the conclusion of his book is that the bombing of Nagasaki (though nowhere near as damaging as the bombing of Hiroshima) persuaded the Japanese cabinet that the bomb was not a one off event, and that they faced certain destruction if they didn't sue for peace. According to Frank, Most American strategists believed that the war with Japan would be a long drown out operation with Japans fanatical resistance extracting mounting casualties the closer the American forces drew to the Home Islands (21). To understand this position, it is necessary to take a closer look at the American experience with the Japanese, during the war. The Japanese were known by their culture of no surrender; they would rather die than surrender. Particularly, in the Japanese military forces this tradition was prominent. Frank continues with a terrible example of this, The first intimations that the Japanese would literally choose death over surrenderand not merely an elite warrior caste but the rank and filecame in August 1942 at Guadalcanal. Two small Imperial Navy island garrisons fought to virtual extinction. Major general Alexander Archer Vandegrift, the Marine commander wrote: I have never heard or read of this kind of fighting. These people refuse to surrender. The wounded wait until men come up to examine themand blow themselves and the other fellow to pieces with a hand grenade(28). Another example, maybe as shocking, happened at the island of Saipan; nearly 30,000 Japanese soldiers fought to the death, only 921 (3 percent) were taken prisoner. On this Island there were 20,000 civilians. Only 10,258 surrendered; the rest chose death. In a carnival of death that shocked even battle-hardened Marines, whole families waded into the sea to drown together or huddled

Survey on Security in Electronic Voting Systems Essay

Survey on Security in Electronic Voting Systems - Essay Example Due to this, the system provides uniqueness of votes ensuring that no voter can vote more than once. The receipt that the voter receives after casting a ballot cannot be used to prove to any third party that they cast a specific vote with the intention to coerce them. The system also allows for the verification of individual votes to assure the voters that their votes have been accurately recorded. This can be achieved by inspecting both sides of the ballot paper and checking to see if the unique random number on the voting receipt is on the bulletin board. It also provides accountability such that third parties can confirm that the voting process was valid. The results are only released after the official counting is complete to ensure fairness and to discourage malicious actions by observers. The end to end verification system which allows the detection of malicious behavior at various stages of the voting process also reduces chances of invalid votes. The disadvantages of the syst em: The main disadvantages of the system are the security issues involved in electronic voting. Data is susceptible to interruptions and alteration by the installation of viruses in online databases by operators with malicious intentions. There is also unequal access to the internet by voters due to unequal chances of acquiring equipment necessary for electronic voting. Due to the differences in salaries, some voters may be left out from the voting process. The system can be improved by several methods. The E-voting scheme is only applicable for general elections with several contending candidates which feature the majority and plurality style election styles. The scheme can be improved to function in proportional representation. The system is however vulnerable. Parties that are entrusted to execute the algorithm of scheme may compromise the system to work in an abnormal way. The installation of a virus onto the databases could also lead to discrepancies in the results of the votin g process. The article on a practical secret voting scheme for large scale elections proposes a secret voting system which involves voters, an administrator and a counter which can be replaced with a public board as the participants of the process. It is applicable for a large scale election where it protects the privacy of the voter and ensures the fairness of the voting process regardless of the actions of the administrator and counter. Every voter has a unique ordinary signature scheme while the administrator has a blind signature scheme. The counter is only tasked with the creation and publish of a list of ballots. The system has several advantages: It solves the fairness and privacy issues portrayed in the previous methods of the encryption of files and sending of ballots through secret means of communication. The security of the scheme is ensured by the correct counting of all valid votes. The process is clear, sound and accountable and promotes fairness to discourage dishones ty in voters that would affect the process. The votes are kept private. The voters have to provide their credentials which ensures that every voter is qualified and to prevent the casting

Reflection Essay Example | Topics and Well Written Essays - 1000 words - 13

Reflection - Essay Example As one such leader, practicing honesty in all aspects of my role is paramount. My communication and actions should show honesty. Trust is finds its base on honesty. Honest ethical leader bases his argument on facts and this facilitates employees to depend and rely on him. A leader is about a better position to practice integrity if he is honest. Integrating honesty in my leadership style entails effective reasoning through facts. Claiming that you are honest without actual practice the virtue amounts to poor leadership. Every action of an ethical leadership requires transparency and truthfulness (Reilly, Sirgy & Gorman, 2012). Transparency and accountability are indications of honesty in ethical leadership. Incorporating honesty in decision making for an ethical leader entails using the facts as the basis of reasoning. Communication of the facts to the affected parties should be through truthfulness. The action of the leader during making of such decisions should clearly point toward honesty. This makes it easier for the people on the receiving end to appreciate the decision. The second important value for me as an ethical leader is commitment. It is the dedication of an ethical leader to the organization. Commitment entails not giving up or losing focus when the situation becomes unmanageable. Commitment by an ethical leader calls for perseverance throughout the course of leadership. It is a solemn promise that you will stick to the course even during trying moments. A committed leader invests fully in the organization. The investment is in terms of emotional, mental and physical dedication. Focusing full attention and energy make exemplary committed ethical leaders. Another aspect of commitment, which is important involves being ready to sacrifice personal interests in pursuit of the organizational objectives. To instill commitment among employees in an organization, a demonstration through action by the leader is

The low-cost Airline Ryanair Essay Example | Topics and Well Written Essays - 750 words

The low-cost Airline Ryanair - Essay Example In any industry, several forces in conjunction form the success or failure of any firm that operates in it. These forces include those factors, which affect a business from outside its immediate environment, which is the macro environment. Porter’s Five Forces Model makes it easier for one to analyze these various factors in relation to any industry, as it outlines the basic factors, which one should observe to understand a company’s chances for success and market attractiveness. Ryanair, an airline in the transportation industry, forms an interesting choice of company which one can analyze using this model. To start, one needs to have a brief idea about Ryanair. It is a low-cost airline, which is the second largest airline in Europe, and belongs to the transportation sector of the tourism industry. The reason it forms such an interesting choice is that it is one of the largest in the world in terms of international passenger number and the second largest (Amason, 2010) in terms of passenger number. This success of the airline is intriguing, and leads one to wonder whether the success can be explained by the recent deregulations that happened in the aviation industry in Europe in 1997 or whether it is due to the low-cost business model that Ryanair operates under. Either way, it is an intriguing case for anyone interested in studying companies from a business management aspect (Amason, 2010). Porter’s Five Forces Model includes firms, which study the competitive environment of the firm. ... In relation to the competition it faces from other firms, Ryanair competes against several rivals. These include another low-cost Irish airline Aer Lingus, which came into direct competition with Ryanair ever since it switched to a low-cost business model. Other competitors include MyTravelLite and Go (Hoffman, 2007), both of which were at a point in time, in competition with Ryanair, although it was not long before Ryanair was able to beat them due to its low cost strategies. Aer Arann and CityJet are some more examples of competition, which Ryanair faces, while EasyJet is this airline’s largest competitor (Hoffman, 2007). The airline industry is one where no one firm can hold monopoly, because each successful firm has different strategies and different core competencies, which earn them a fair share of market share. In addition, it is a large industry, which automatically means there will be several competitors. As for the power of customers, it is not a strong force in this particular industry. The customers are more or less price takers in the airline industry, as there are dozens of airlines, which cater to customers belonging to each price category. While it is true that these airlines use low-cost strategies due to the customers only, it does not mean that the customers have the power to influence the rates of fares of these airlines. Similarly, the power of suppliers is also not very relevant to this industry. The start-up costs as well as any materials and services the airlines use for their planes or operations make a large proportion of their costs. However, their magnitude is what influences the airline’s decisions, not the wishes or demands of the suppliers, which makes the power

Transformer Oil Or Insulating Oil Engineering Essay

Transformer Oil Or Insulating Oil Engineering Essay CHAPTER 2 LITERATURE REVIEW 2.1 Introduction Transformer is one of the most useful appliances ever invented. Transformer can raise or lower the voltage or current in alternating current (AC) network, the circuit can be isolated from one another, and to increase or decrease the apparent value of a capacitor, inductor, or resistor. Furthermore, the transformer allows us to transmit electricity long distances and to circulate safely in factories and homes. (Electrical Machines, Drives, and Power Systems, 6th Edition). The cost of a transformer is high. The failure of one transformer resulted in a loss in terms of the price of one transformer or in terms of energy supply disruptions to consumers. Therefore, to monitor the transformer oil is one the right way and good for detecting the causes of damage to transformers. 2.2 Transformer Transformer is one of the most important electrical devices. Transformer is widely used in power systems and electronic devices. Transformer can also raise and lower voltage levels and the alternating current to suit application. Transformer can transfer power from one section to another on the same frequency but different voltage levels and currents. Transformer basically consists of two coils of a conductor which acts as an inductor electrically separate but magnetically attached. Transformer consists of two loops wrapped around the core base, core and coil which are a part of the transformer structures. Figure 2.1 shows the general structure of a transformer. When alternating current connected to the transformer primary windings, current will flow through the primary winding. Alternating current flows will create an alternating magnetic flux in the transformer core. The magnetic flux can flow to the secondary winding of the transformer through the transformer core. http://www.electricityforum.com/images/electrical-transformer-design.jpg Figure 2.1 General Structure of Transformer According to the Faraday law, the electromotive force or voltage is induced in the coil-winding transformer when the flux is changes in value. Because of the magnetic flux in the transformer core is an alternating flux whose value is constantly changing over time, the electromotive force or voltage is always induced in the coil-winding transformer. Electromotive force in the primary winding is known as the self-induced electromotive force is due to the flux generated by the coil itself. While the electromotive force induced in the secondary winding is known as mutual induction electromotive force due to the induced electromotive force is caused by magnetic flux generated from the primary winding. In an ideal transformer, the induced voltage in the secondary winding (Vs) is in proportion to the primary voltage (Vp), and is given by the ratio of the number of turns in the secondary (Ns) to the number of turns in the primary (Np) as follows: (Equation 2.1) By appropriate selection of the ratio of turns, a transformer thus allows an AC voltage to be stepped up by making Ns greater than Np, or stepped down by making Ns less than Np. There are many types of transformer are designed to meet the specific industrial applications. These include autotransformer, control, current, distribution, general-purpose, instrument, isolation, potential (voltage), power, step-up, and step-down. To avoid rapid damage of the insulating materials inside a transformer, sufficient cooling of the windings and the core must be provided. Indoor transformers below 200 kVA can be directly cooled by the natural flow of the surrounding air. The metallic housing is equipped with ventilating louvres so that the convection currents that can flow over the windings and around the core. Large transformers can be constructed in the same way, but the forced circulation of fresh air must be provided. Such as a dry-type transformers are used inside the building, away from the hostile atmosphere. Distribution transformers below 200 kVA are usually immersed in mineral oil and sealed in a steel tank. Oil carries the heat away to the tank, which it is lost by radiation and convection to the outside air. Insulating oil is much better than air, consequently, it is often used in high voltage transformers. As the power rating increased, external radiators are added to increase cooling surface of the tank contains oil. Oil circulates around the transformer windings and moving through the radiator, where heat released into the surrounding air. For still higher levels, cooling fans blow air over the radiators. For transformers in the megawatt range, cooling can be effected by the oil-water heat exchanger. Hot oil drawn from the transformer tank is pumped into the heat exchanger where it flowing through the pipes that are in contact with cold water. Such as heat exchanger are very effective, but also very expensive, because water itself must continuously cool and recirculated. Some large transformers are designed to have multiple ratings, depending on the cooling method used. Thus, the transformer may have triple ratings depending on whether it is cooled by: the natural circulation of air (AO) for 18000 kVA, or forced-air cooling with fans (FA) for 24000 kVA, or the forced circulation of oil accompanied by forced-air cooling (FOA) for 32000 kVA. These elaborate cooling systems are nevertheless economical because they enable a much greater output from the transformer of a given size and weight. The type of transformer cooling is designated by the following symbols: AA dry-type, self-cooled AFA dry-type, forced-air cooled OA oil-immersed, self-cooled OA/FA oil-immersed, self-cooled/forced-air cooled AO/FA/FOA oil-immersed, self-cooled/forced-air cooled/forced-air, forced-oil cooled The temperature rise by the resistance of oil-immersed transformers is either 55 °C or 65 °C. The temperature must be kept low to preserve the oil quality. By contrast, the temperature rise of dry-type transformer may be as high as 180 °C, depending on the type of insulation used. TEMCo offers the largest selection of High Voltage Transformers.GE Ventilated Dry-type Transformer Figure 2.2 Dry-Type Transformer Figure 2.3 Oil-Immersed Transformer 2.3 Transformer Oil Transformer oil or insulating oil is usually a highly-refined mineral oil that is stable at high temperatures and has excellent electrical insulating properties. It is used in oil-filled transformers. Transformer oil is likened to be the blood within the transformer body. It must be periodically tested to monitor condition of the transformer. Transformer oil serves three basic functions which are to insulate, to cool and maintain the transformer functions at all times. To keep these functions the industry has agreed on certain standards. The two leading transformer oil specifications in the world are IEC 60296 and ASTM D 3487. In these standards there are many specific requirement and limits based on physical and chemical properties. Many of these properties and their limitations stem from the chemistry of refined mineral oils in combination with application specific requirements of electrical insulation. In an age when alternative to mineral oil being developed, it is important both to know what is desirable and what is likely to achieved in technical terms. Whereas some brands of transformer oil could only meet the specifications, the others excel. In the end, transformer oil consumers should decide which properties are most important to their intended use. Technical specifications also have an impact on issues such as asset management, maintenance planning and investment budget. To aid decisions in these fields it is helpful to have a basic understanding of the science underlying specifications and limitations. In Malaysia, mostly used transformer oil is mineral crude oils (uninhibited mineral oils) which contains Paraffic, Naphteric or mixed. It is supplied by Hyrax Oil Sdn. Bhd. 2.3.1 Transformer Oil Properties The main function of transformer oil is insulating and cooling of the transformer. It should have the following properties: High dielectric strength and good dielectric properties resulting in minimum power loss. Low viscosity improves cooling. Freedom from inorganic acids, alkali, and corrosive sulphur. Resistant to emulsification. Rapid settling of arc products. Low pour point. High flash point resulting in low evaporation losses due to high thermal stability. High resistivity gives better insulation values between windings. Excellent interfacial tension for quick water separation. Proven resistance to electrical stresses. High electrical strength. Remarkably low sludge and acidity formation in both ageing and oxidation tests gives longer life to oil and equipment during storage and service. 2.3.2 Theory of Transformer Oil Parameters Water Content The standard for measuring water contain in oil is IEC 60814. (Marcel Dekker, 1990). The important function in transformer oil is to provide electrical insulation. When oil has higher moisture content, it can reduce the insulating properties of the oil, which may result in dielectric breakdown. This is the particular importance with fluctuating temperatures because, transformer will cools down if any dissolved water will become free and this oil become poor insulating power and fluid degradation. (Azliza binti Mohd Jelan,2009). Breakdown Voltage Dielectric strength is one of the important properties in insulation field. Breakdown voltage in insulating material is the maximum electric field strength that it can be withstand intrinsically without breaking down and without experiencing failure of its insulating properties, dielectric strength also means that a certain configuration and electrode dielectric material that produces minimal damage to the electric field. (Rohaina bt Jaafar, 2003). Breakdown strength in liquid according to various factors influenced in the experiment which is electrode material and surface state, geometry electrode, the presence of chemical pollutants, the presence of physical pollutants, oil molecular structure, temperature and pressure. There also various factors in the theory of voltage breakdown which is like electronic theory, suspended particle theory, cavitations theory and bubble theory were postulated. (Olive Oil from the Tree to the Table). Dielectric strength is also very dependent on the time and method of tension, purity materials, the type of tension as well as experimental and environmental parameters, until set of dielectric strength unique to the specific material is difficult, a range of values can be found and used for application purposes. (Noraniza binti Toriman, 2003). Figure 2.4 Heating / Cooling Curve of Oil (Ahmad Norhakimi bin Ibrihim @ Ibrahim, 2010) 2.3.3 Types of Transformer Oil Mineral Transformer Oil (Mineral Based Oil) A mineral oil or liquid petroleum is a liquid by-product of the distillation of petroleum to produce gasoline and other petroleum based products from crude oil. A mineral oil in this sense is a transparent, colourless oil composed mainly of alkenes (typically 15 to 40 carbons) and cyclic paraffin, related to petroleum jelly (also known as white petrolatum). It has a density of around 0.8 g/cm3. Mineral oil is a substance of relatively low value, and it is produced in very large quantities. Mineral oil is available in light and heavy grades, and can often be found in drug stores. There are three basic classes of refined mineral oils: Paraffinic oils, based on n-alkenes. Naphthenic oils, based on cycloalkanes. Aromatic oils, based on aromatic hydrocarbons (not to be confused with essential oils). Table 2.1 Properties of Mineral Transformer Oil (http://www.substech.com) Property Value in metric unit Value in US unit Density at 60 °F (15.6 °C) 0.880 *10 ³ kg/m ³ 54.9 lb/ft ³ Kinematic viscosity at 68 °F (20 °C) 22 cSt 22 cSt Kinematic viscosity at 212 °F (100 °C) 2.6 cSt 2.6 cSt Fire point 170  °C 338  °F Pour Point -50  °C -58  °F Flash point 160  °C 320  °F Auto ignition point 280  °C 536  °F Specific heat capacity 1860 J/(kg*K) 0.444 BTU/(lb* °F) Thermal conductivity at 20 °C (68 °F) 0.126 W/(m*K) 0.875 BTU*in/(hr*ft ²* °F) Thermal expansion at 20 °C (68 °F) 7.5*10-4  °Cˆ°Ã‚ ¹ 4.2*10-4 in/(in*  °F) Breakdown strength min.70 kV min.70 kV Dielectric dissipation factor at 90 °C (194 °F) max.0.002 max.0.002 Permittivity at 20 °C (68 °F) 2.2 2.2 Silicon Transformer Oil (Polydimethylsiloxane based fluid) Polydimethylsiloxane (PDMS) belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological (or flow) properties. PDMS is optically clear, and, in general, is considered to be inert, non-toxic and non-flammable. It is occasionally called dimethicone and is one of several types of silicone oil (polymerized siloxane). Its applications range from contact lenses and medical devices to elastomers; it is present, also, in shampoos (as dimethicone makes hair shiny and slippery), caulking, lubricating oils, and heat-resistant tiles. Table 2.2 Properties of Silicon Transformer Oil (http://www.substech.com) Property Value in metric unit Value in US unit Density at 60 °F (15.6 °C) 0.960 *10 ³ kg/m ³ 59.9 lb/ft ³ Kinematic viscosity at 68 °F (20 °C) 55 cSt 55 cSt Kinematic viscosity at 212 °F (100 °C) 15 cSt 15 cSt Fire point min.350  °C min.662  °F Pour Point max.-50  °C max.-58  °F Flash point min.300  °C min.572  °F Auto ignition point 435  °C 815  °F Specific heat capacity 1510 J/(kg*K) 0.360 BTU/(lb* °F) Thermal conductivity at 20 °C (68 °F) 0.15 W/(m*K) 1.019 BTU*in/(hr*ft ²* °F) Thermal expansion at 20 °C (68 °F) 10.4*10-4  °Cˆ°Ã‚ ¹ 5.8*10-4 in/(in*  °F) Breakdown strength 50 kV 50 kV Dielectric dissipation factor at 90 °C (194 °F) max.0.001 max.0.001 Permittivity at 20 °C (68 °F) 2.7 2.7 Synthetic Transformer Oil (Organic Esters Based Fluid) Synthetic oil is a lubricant consisting of chemical compounds which are artificially made (synthesized) using chemically modified petroleum components rather than whole crude oil. Synthetic oil is used as a substitute for lubricant refined from petroleum when operating in extremes of temperature, because it generally provides superior mechanical and chemical properties than those found in traditional mineral oils. Table 2.3 Properties of Synthetic Transformer Oil (http://www.substech.com) Property Value in metric unit Value in US unit Density at 60 °F (15.6 °C) 0.970 *10 ³ kg/m ³ 60.6 lb/ft ³ Kinematic viscosity at 68 °F (20 °C) 70 cSt 70 cSt Kinematic viscosity at 212 °F (100 °C) 5.3 cSt 5.3 cSt Fire point 322  °C 612  °F Pour Point -60  °C -76  °F Flash point 275  °C 527  °F Autoignition point 438  °C 820  °F Specific heat capacity 1880 J/(kg*K) 0.448 BTU/(lb* °F) Thermal conductivity at 20 °C (68 °F) 0.144 W/(m*K) 0.98 BTU*in/(hr*ft ²* °F) Thermal expansion at 20 °C (68 °F) 7.5*10-4  °Cˆ°Ã‚ ¹ 4.2*10-4 in/(in*  °F) Breakdown strength min.75 kV min.75 kV Dielectric dissipation factor at 90 °C (194 °F) max.0.006 max.0.006 Permitivity at 20 °C (68 °F) 3.2 3.2 2.3.4 Transformer Oil Testing Regular sampling and testing of insulation oil taken from transformers is a valuable technique in a preventative maintenance program. If a proactive approach is adopted based on the condition of the transformer oil, the life of the transformer can be extended. Hence, transformer oil must be periodically tested to ensure its basic electrical properties. These tests can be divided into: Liquid Power Factor The IEC standard method for this test is IEC 247. This involves measuring the power loss through a thin film of liquid test. Water, contamination, and the decay products of oil oxidation tend to increase the power factor of oil. The new oil has very low power factor less than 0.1% at 25  ° C and 1.0% at 90  ° C. As the oil ages and moisture accumulates, or if the unit is contaminated, the liquid power factor tends to increase. Many owners make the mistake of having this transformer testing at only one temperature. While the test is more sensitive to 90  ° C, both the temperature should be used. The relationship between 25  ° and 90 ° values can assist in making the diagnosis as to whether the problem of moisture, oxidation, or contamination. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Dielectric Breakdown Strength The dielectric breakdown voltage is a measure of the ability of the oil to withstand electric stress. Dry and clean oil showed the inherent high breakdown voltage. Free water and solid particles, especially the latter in combination with high levels of dissolved water, tend to migrate to areas of high electric stress and dramatically reduce the breakdown voltage. The measurement of breakdown voltage, therefore, serves primarily to indicate the presence of contaminants such as water or conducting particles. A low breakdown voltage can be indicating that one or more of these are present. However, a high breakdown voltage does not necessarily indicate the absence of all contaminants. This test was conducted in accordance with IEC 156. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Moisture The purpose of dielectric tests are conducted is to ensure the monitoring moisture can be done directly. IEC 733 is a well established and can measure the moisture down to the low part of the million levels. While the acceptable values have been set by the voltage class for moisture, these are somewhat misleading. A truer picture of moisture in the transformer must be taken into account so that percentage saturation of the oil by moisture and percentage moisture by dry weight of the solid insulation can be calculated. A transformer at 20  ° C that containing 20 ppm moisture in oil is considerably wetter than a same unit, with a similar 20 ppm moisture, but it is operating at 40  ° C. The new transformer must be less than 0.5% moisture by dry weight. Anything more than 3.0% (or 30% saturation) is considered very wet. Many owners dehydrate transformer when the moisture level exceed 1.5 to 2.0% moisture by dry weight. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Neutralization Number (Acidity) This value, measured by IEC standard method IEC 1125A reported as mg KOH / g sample, reports the relative amount of oil oxidation products, especially acids, alcohol and soap. As oil continues to oxidize, the acid increased gradually, generally over the years. Running the acid number regularly provides guidance as to how far oxidation of the oil has proceeded. The acceptable limit by the test is usually used as general guidelines to determine when the oil should be replaced or reclaimed. Acceptable values for acid number are 0.20 and lower. Unacceptable values are over 0.20.These are the values that are used by TNB. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Interfacial Tension The test methods for interfacial tension (IFT), IEC 6295, measuring the strength in mN/m from the interface that will form between service aged oil and distilled water. Because the decay products of oil oxidation are oil and water soluble, their presence would tend to weaken the interface and reduce the interfacial tension value. Brand new oil is often 40-50 mN/m. A value that is acceptable for the in-service oil is greater than 25 mN/m or greater; unacceptable results are below 28 mN/m. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Colour/Visual Field inspection of liquid insulation (IEC 296) includes examination for the presence of cloudy or sediment and the general appearance as well as a colour inspection. As oil ages, it will be darken gradually. Very dark oil or oil that changes drastically over a short period of time may indicate a problem. Any cloudiness or sediment indicates the presence of free water or particles that may be harmful to continued the equipment operation. Taken alone, without considering the past history or other test parameters, the colour is not very important to diagnose transformer problems. If the oil has an acrid or unusual odor, consideration should be given to carrying out further tests. (A Guide To Transformer Oil Analysis, by I.A.R. GRAY) Sludge/Sediment The IEC 296 test distinguishes between the sediment and sludge. Sediment is an insoluble substance present in the oil. Sediment may consist of insoluble oxidation or degradation products of solid or liquid materials, solid products such as carbon or metallic oxide and fibres or other foreign matter. Sludge is polymerized oxidation products of solid and liquid insulating material. Sludge is soluble in oil up to a certain limit. At sludge levels above this, the sludge comes out of the solution contributing an additional component to the sediment. The presence of sludge and sediment can change the electrical properties of the oil and prevent the exchange of heat, so encouraging damage to the insulating material. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Inhibitor Content Inhibited oil deteriorates more slowly than uninhibited oil so long as active oxidation inhibitor is present. However, after the oxidation inhibitor is consumed, the oil can be oxidized at a higher level. Determination of oxidation inhibitor remaining in the in-service transformer oil is based on IEC 666. (A Guide to Transformer Oil Analysis, by I.A.R. GRAY) Dissolved Gas Analysis In contrast to the tests and the methods discussed to this point, the dissolved gas analysis (DGA) did not measure the gradual changes in the quality of oil. DGA has a very limited utility in determining the continued suitability of the transformer oil. The purpose and functions of the DGA is to provide an indication as to whether there may be an active or incipient transformer fault affecting the operation and continued health of the equipment. DGA is used to detect and measure nine of dissolved gases which are Hydrogen, Oxygen, Nitrogen, Methane, Carbon Monoxide, Carbon Dioxide, Ethan, Ethylene, and Acetylene. (A Guide To Transformer Oil Analysis, by I.A.R. GRAY) Dissolved Metals Analysis Analysis of dissolved metals (in particular, for the three metals: iron, copper, and aluminium) can be used in further identifying the location of transformer faults discovered by dissolved gas analysis. For example, the dissolved metal analysis indicating the presences of conductor metals may indicate a fault is occurring in the winding or at a connection while the presence of iron indicates involvement of the core steel. (A Guide To Transformer Oil Analysis, by I.A.R. GRAY) Furanic Compounds When paper breaks down, the cellulose chains are broken and glucose molecules (which serve as the building blocks of the cellulose) are chemically changed. Each of the glucose monomer molecules that are removed from the polymer chain becomes one of a series of related compounds called furans or furanic compounds. Because these furanic compounds are partially soluble in oil, they are present in both the oil and the paper. Measuring the concentration of the oil can tell us a little more about the paper. The standard method typically tests for five compounds that are normally only present in the oil as a result of the paper breaking down. Those five compounds, and their probable causes, are 5-hydroxymethyl-2-furaldehyde, 5H2F (typically formed by oxidation of paper), 2-furyl alcohol, 2FOL (typically formed in connection with a high moisture content), 2-furaldehyde, 2FAL (very common, formed by all overheating and aging conditions), 2-acetyl furan, 2ACF (very rare, may be related to elec trical stress), and 5-methyl-2furaldehyde, 5M2F (typically formed as a result of overheating). (A Guide To Transformer Oil Analysis, by I.A.R. GRAY) 2.3.4 Instrument / Device for Transformer Oil Testing Oil Test Set (Megger OTS 60 PB) The OTS 60PB is a 0 60 kV, battery powered portable dielectric strength oil test set. Its size and weight make it suitable for on-site assessment of insulating oil quality. The dielectric strength test it performs is an important deciding factor in knowing whether to retain or replace the oil. Breakdown voltage is measured, averaged and displayed under the control of built-in programmed sequences. Go/no-go testing is available. Figure 2.4 Oil Test Set (Megger OTS 60 PB) OTS 60PB follows the oil testing sequences described in many national and other specifications among which are: British BS 148, BS 5730a (automatic proof testing), BS 5874; International IEC 156, American ASTM D877 ASTM D1816, German VDE 0370, French NFC 27, Spanish UNE 21, Italian CEI 10-1, Russian GOCT 6581, South African SABS 555, Australian AS 1767 and Institute of Petroleum IP 295. Two types of withstand (proof) testing of an oil sample are available. The principle with these tests is to subject the oil sample to a specified voltage for a defined length of time (1 minute) to see if it will withstand that voltage. In one of the tests the voltage is removed after a minute, in the other test, the voltage continues to rise after the minute until breakdown or the maximum value is reached. Withstand (proof) tests can be set up to the users own requirements, and then repeatedly called up to quickly test oil under known fixed conditions. The OTS 60PB is used for determining the dielectric strength of liquid insulants such as insulating oils used in transformers, switchgear, cables and other electrical apparatus. It is portable and suitable for testing on site as well as in the laboratory. The test set is fully automatic. The operator has only to prepare the test vessel, load it with sample oil, place it in the test chamber, select the appropriate specification for the tests and then start the test sequence. The test set carries out automatically (and if necessary unattended) the sequence of tests as defined by the pre-selected national specification. Oil testing specifications, for which the set is pre-programmed, are as follows:- Figure 2.5 Oil testing specifications A 5 minute test sequence is also provided so that the operator may quickly obtain an idea of the breakdown value of an oil sample. Two types of semi automatic withstand (proof) testing of an oil sample are available. The principle with these tests is to subject the oil sample to a specified voltage for a defined length of time (1 minute) to see if it will withstand that voltage. In one of the tests the voltage is removed after a minute, in the other test the voltage continues to rise after passing for one minute until breakdown or the maximum value is reached. Withstand (proof) tests can be set up to the users own requirements, and then repeatedly called up to quickly test oil under known fixed conditions. The test results can be reviewed on the LCD or printed via the RS232 interface. An optional, battery operated printer is available to obtain a hard copy of the results. The safety features incorporated in the test sets design include two forced break switches used as described in B S 5304. These are interlocked with the oil vessel loading door. Volumetric titration system Metrohm Titrino SM 702 An automatic potentiometric titration system Titrino SM 702 with Exchange Unit 806 made by Metrohm measured the acidity of the oils. Here the Total Acid Number (TAN) was determined by a volumetric titration with potash to neutralize the carboxylic acids. The titration took place as follows: At first 10 g of the oil were dissolved in 40 ml of solvent toluene / ethanol in a ratio of 5 to 4. Potash (KOH, 0,1 mol/l) was added as titre with volume increments of 0.001 ml or 0.005 ml depending on the expected acidity. The system detects, when the acid-base-equivalence-point EP is reached by a voltage measurement in the solution. From the volume of potash at the EP equation below calculates the acidity as TAN: TAN total acid number EP1 equivalent point C31 blind value of the solvent toluene/ethanol CO1 0.1 mol/L, concentration of titre CO2 1 CO3 56106 g/mol, molar mass of titre CO0 weight of the oil sample Figure 2.6 Volumetric itration systems Metrohm Titrino SM 702 Kelman TRANSPORT X Portable DGA Unit And Moisture In Oil Dissolved Gas Analysis (DGA) is an established technique and is recognised as the most important test in monitoring power transformers. It is now being successfully extended to other oil filled equipment such as tap changers and circuit breakers. The TRANSPORT X unit has been designed to be very rugged and user friendly with an emphasis placed on field operation. The unit is used by over 200 companies and utilities and has sold in excess of 600 units worldwide. Figure 2.7 Kelman TRANSPORT X Portable DGA Unit And Moisture In Oil The TRANSPORT X test uses state of the art infrared measurement technology to give accurate, reliable results in a matter of minutes. The TRANSPORT X product represents an invaluable tool for Asset Management and will increase the power of any DGA program. Extensive field and laboratory use worldwide has proven that the TRANSPORT X test gives highly reliable results and that it is genuinely suitable for field conditions. The TRANSPORT X equip

John Stuart Mill and Utilitarianism Essay -- Philosophy Morality John

John Stuart Mill and Utilitarianism Utilitarianism defined, is the contention that a man should judge everything based on the ability to promote the greatest individual happiness. In other words Utilitarianism states that good is what brings the most happiness to the most people. John Stuart Mill based his utilitarian principle on the decisions that we make. He says the decisions should always benefit the most people as much as possible no matter what the consequences might be. Mill says that we should weigh the outcomes and make our decisions based on the outcome that benefits the majority of the people. This leads to him stating that pleasure is the only desirable consequence of our decision or actions. Mill believes that human beings are endowed with the ability for conscious thought, and they are not satisfied with physical pleasures, but they strive to achieve pleasure of the mind as well. He claims that people seek pleasure and reject pain. There were some moral problems that Mill ran into with his principle. One of the first problems was that actions are right to promote happiness, but wrong as they sometimes tend to produce unhappiness. By moving a victim from a mangled car would be the noble thing to do but what if pulling him from the wreck meant killing him. He intended to produce a happy outcome, but in the end he created an unhappy situation. Utilitarianism declares that men can live just as well without happiness. Mill says yes, but men do not conduct their lives, always seeking happiness. Happiness does not always mean total bliss. Another problem is that some pleasures are more alluring than others. Pleasure does not deal with just quantity, quality is also important. The old saying, â€Å"You ... ...ale. I think that people intend to do good and the people that produce a bad outcome due to their actions have a disorder it is not necessarily and intended evil. I also believe that we do conduct our lives in hope of happiness. We would not run the race if we did not hope to win. Of course there are going to be losers but with out losing you cannot really pleasure the act of winning. Mill did not prove a justification for what happiness is to the whole. I do not think everyone has the same desire for happiness. We each share similarities but all have different ideas of what happiness means. Rap music might offend my grandmother but LL Cool J loves rap music and never intended to offend my grandmother. All of the cases presented in utilitarianism and Mill’s views are very vast. Mill does have some good points but really avoided justifying his theory.

Act of kindness Essay

An Act of Kindness that I did for someone would be for my parents. What I did as kindness would be that I help my mom do chores at home without them telling me to help. I will see that they where always working hard and they will come home preatty late. So I kind of took care of home and my two brothers. and sometimes my dad too when he felt really bad, what I mean by bad would be that he had lukimia cancer. My mother work as a babysitter she will go to work mostly of the time at 6am and come back at 10pm and on weekends she would clean houses so she never had time to do chores at home or make dinner. My father worked in construction he was a hard worker too he will go to work a little later than my mom and come home earlier than her too. he was the one the took us to school when he could. Or one of my aunts would take us to school when he couldn’t. My dad also was battleing lukimia cancer for 10 years, he past away at age 41 september-29-2009. The Act Of Kindness that i did would be, first of all I would make breakfast for my brothers and dad so they could eat and so my dad can take his medication so ill help around with breakfast sometimes I will wake up later because i was tired I had to go to school and I was also young mother.By age 14 I had a baby too. And well my mom we didn’t really see in breackfast time because she would wake up eairlier she would even eat breackfast in the mornings. Sencondly I will come from school start cleaning the house wash dishes wash clothes clean the bathroom, and fix all the rooms my parents and brothers room vacume and mop . and if there was clothes to fold ill fold and put it away too. Then finally make dinner. so by the time by dad got home from work there will be dinner my dad would go to work sometimes right after he got out of his kimotheraphy he will go to work when he wasn’t soppost to. I will help my mom do all these chores because she worked alot barely had time to do it and ill see that she will come home tired. Act of Kindness Essay Today i will be telling you about one of my act of kindness, but before i do that i will be giving you hints as to what your about to read. It happen at a store that was one city over from me and was one of the best places to be be around because of the places near it. I was really young and it happen in the toy aisle because when your little and a boy it’s your favorite place. There was a young boy who was crying out for his mom. I was a worried alot when i was little and so i had my older sister help me look for the kids mother so he could smile. Those are my hints to what your about to read in my essay about my act of kindness. My act of kindness takes place at Kmart in Simi Valley, Califronia. I lived one city over from Simi and it was the only major shopping store close to us that was like a Walmart. I loved going to Kmart with my mom and sister because i would most likey get a toy for going with them. Once before when i went to Kmart with my mom i got lost from her and i t was the scariest thing a young boy can feel being lost from his mother. When i got lost there was someone there to help me get back to my mom, so i always felt that i should help someone else who was lost from someone they love. MY act of kindness happened in Kmart but to be more precise it happened in the toy aisle in Kmart. When your a young boy the toy aisle is like a candy shop and every toy is like a different flavor. I was six years old with my mom and sister and i would always go to the toys to look and see what i wanted for chrismas because chrismas was like a month and a half away. I saw a little boy in the toy aisle with me he had his hands on his face and i didnt know what he was doing. The little boy was three years old and his hands were over his face because he was crying and i did’nt know why he was crying i was thinking it was for a toy and he mom wouldnt let him get it. Then i hear him starting to cry mama mama where are you mama. I started to worry for the three year old boy even though i was only six years old i worried and to this day i still worry about stuff. When i went up to my mom i told her i think that boy is lost from his mom. I got to the point where i didnt want him to be sad anymore because i knew when i got lost from my mom someone helped me. I ask my sister if she would help me with looking from his mom, my sister was 12 so she was older than me and could do alot more than i could. We started to look around the toy aisle because that where the three year old boy was so we thought his mother would be close by. Then we started to look other places we went to the food  aisle and the young kids clothing aisle. We looked everywhere we were thinking his mom left Kmart and left her son in the toy aisle. We went to the cash register have an employee page that a little boy lost his mom, but right when we got there we heard the mom yell the three year old boy’s name and he yelled mommy and she thanked us for helping her son look for his mom and i was happy knowing he got back with his mom. That is one of my act of kindness but to me this is one of the biggest act of kindness i have done because i was six when i did this act of kindness. To some people it might not seem like a big act of kindness but even the littlest acts of kindness can help someone in the long run. So if i could say that someones act of kindness to me made me in turn help someone else. I hope what you get from this story is that you can help someone no matter the age or the place. These are my words of wisdom for someone who was helped and who in return helped someone else.

Calculate Energy Required to Turn Ice Into Steam

Calculate Energy Required to Turn Ice Into Steam This worked example problem demonstrates how to calculate the energy required to raise the temperature of a sample that includes changes in phase. This problem finds the energy required to turn cold ice into hot steam. Ice to Steam Energy Problem What is the heat in Joules required to convert 25 grams of -10  °C ice into 150  °C steam?Useful information:heat of fusion of water 334 J/gheat of vaporization of water 2257 J/gspecific heat of ice 2.09 J/g ·Ã‚ °Cspecific heat of water 4.18 J/g ·Ã‚ °Cspecific heat of steam 2.09 J/g ·Ã‚ °CSolution:The total energy required is the sum of the energy to heat the -10  °C ice to 0  °C ice, melting the 0  °C ice into 0  °C water, heating the water to 100  °C, converting 100  °C water to 100  °C steam and heating the steam to 150  °C. To get the final value, first calculate the individual energy values and then add them up.Step 1: Heat required to raise the temperature of ice from -10  °C to 0  °C Use the formulaq mcΔTwhereq heat energym massc specific heatΔT change in temperatureq (25 g)x(2.09 J/g ·Ã‚ °C)[(0  °C - -10  °C)]q (25 g)x(2.09 J/g ·Ã‚ °C)x(10  °C)q 522.5 JHeat required to raise the temperature of ice from -10  °C to 0  °C 522.5 JStep 2: Heat required to convert 0  °C ice to 0  °C waterUse the formula for heat:q m ·ÃŽâ€Hfwhereq heat energym massΔHf heat of fusionq (25 g)x(334 J/g)q 8350 JHeat required to convert 0  °C ice to 0  °C water 8350 JStep 3: Heat required to raise the temperature of 0  °C water to 100  °C waterq mcΔTq (25 g)x(4.18 J/g ·Ã‚ °C)[(100  °C - 0  °C)]q (25 g)x(4.18 J/g ·Ã‚ °C)x(100  °C)q 10450 JHeat required to raise the temperature of 0  °C water to 100  °C water 10450 JStep 4: Heat required to convert 100  °C water to 100  °C steamq m ·ÃŽâ€Hvwhereq heat energym massΔHv heat of vaporizationq (25 g)x(2257 J/g)q 56425 JHeat required to convert 100  °C water to 100  °C steam 56425Step 5: Heat required to convert 100  °C steam to 150  °C steamq mcΔTq (25 g)x(2.09 J/g ·Ã‚ °C)[(150  °C - 100  °C)]q (25 g)x(2.09 J/g ·Ã‚ °C)x(50  °C)q 2612.5 JHeat required to convert 100  °C steam to 150  °C steam 2612.5Step 6: Find total heat energyHeatTotal HeatStep 1 HeatStep 2 HeatStep 3 HeatStep 4 HeatStep 5HeatTotal 522.5 J 8350 J 10450 J 56425 J 2612.5 JHeatTotal 78360 JAnswer:The heat required to convert 25 grams of -10  °C ice into 150  °C steam is 78360 J or 78.36 kJ.

The Best ACT Vocabulary Lists on the Web

The Best ACT Vocabulary Lists on the Web SAT / ACT Prep Online Guides and Tips This could take a while. Do you need to study vocabulary for the ACT but aren’t sure where to start? We have links to free lists of ACT vocab from around the web. We also have found other vocab study resources – from videos to apps to browser plug-ins – to help you study ACT-specific vocabulary. A Few Words of Advice: Don’t Overdo Vocab Vocabulary on the ACT is far from the most important thing you can be doing to prep. You won’t be tested on obscure words or need to memorize definitions to be successful. Spending hours memorizing difficult, arcane vocab words will not help you on the ACT. This is because the ACT tests moderate-difficulty words in the context of sentences, and focuses on words with multiple meanings. For more on this, read our article on ACT vocabulary – it’s a must read before you begin to study! In short, make sure you don’t just memorize vocabulary and assume it will get you ready for ACT English and ACT Reading. You need to focus on being able to define vocabulary in context and recognize multiple-meaning words. Many prep programs over-emphasize memorizing vocabulary because it’s easy to teach. Still, learning vocabulary does matter for the ACT (we recommend using the waterfall method to study), which is why we’re including word lists and resources here. Keep in mind that you should view vocabulary as just one component of ACT Reading and English. Don’t neglect studying grammar rules or practicing for the reading section. It's important to keep your ACT studying regimen balanced. Don't spend so much time on one skill you neglect another. ACT Vocabulary Word Lists As we discussed above, the ACT is all about testing vocabulary in context, rather than strange, obscure words. Beware of any super-long word lists that claim to be for the ACT – they are likely just old SAT word lists with a different title. Focus on learning medium-difficulty words really well so you know them in context, and less on learning as many words as possible. I recommend starting with our PrepScholar list. We focus on words with multiple meanings that are likely to appear on the ACT. Our 150 ACT wordsalso includes some vocabulary to help you on the science section. If you are still struggling with vocabulary after learning our 150 words, you can also learn these 100 words from Scholastic. This is technically an ACT/SAT list, but focuses on medium-difficulty words that appeared in a Scholastic publication, so it will be helpful for the ACT. Finally, you can learn 50 more science-specific vocabulary words to help with the science section. Once you have these words under your belt, you will have the base you need to do well on ACT Reading and English. Memorizing more words will have diminishing returns, since again, obscure words aren’t tested on the ACT. And more importantly, you need to practice being able to define words in context. Doing ACT Practice sections will be just as helpful for learning that skill. Memorizing hundreds of vocab words will not. Flashcards, Games, and Other Resources Here are some additional free web resources that can be really helpful for learning ACT vocabulary, and specifically for learning words in context of larger articles or passages. The first two would be great resources for any student. The last two are helpful for students who are auditory learners or learn best by example. Quizlet This is a flashcard website which you can use to learn vocabulary words. If you make an account, you can use their website but also mobile apps for iPhone and Android – meaning you can study whenever you find yourself with a free moment. You can search through thousands of pre-existing flashcard sets on Quizlet. You can either make your own sets using the lists above or search for â€Å"ACT vocabulary† to access pre-made flashcards other users have made. Just be careful you don’t pull up a supposed â€Å"ACT Vocab† card set that is really just old SAT vocabulary. (Any lists longer than 250 words are too long.) You can also search for â€Å"ACT Science† to review more science vocabulary. I personally used this app all the time in college for my language classes and found its format very helpful. I could make flashcards on Quizlet much faster than writing them out by hand. Plus, I would pull up the app whenever I found myself with spare time (waiting in line somewhere, for example) and study a few words. ProfessorWord This is an app for your browser that pulls ACT vocabulary words from articles and pages and defines them for you. This is really cool because if you read articles online, particularly in publications like The Economist, Time, or The New Yorker, you are encountering tons of ACT vocabulary words. This app just goes through and points them out so you don’t miss them! This is an excellent way to learn words in context, which is super useful to prepare for ACT Reading and English. Even if you read just one article a day, by going though the highlighted words and testing your knowledge of them, you can improve your ability to define words in context. This is a great way to practice for ACT vocabulary, and also a fun way, if you like reading articles and blogs. "No, Mom, I'm not just reading Game of Thrones recaps for fun, this is for the ACT!" Image via Wired. Vocab Ahead If you learn better with concepts explained aloud to you, check out the videos at Vocab Ahead. Rather than just giving you a dictionary definition, they also use vocabulary words in sentences, with animations to match, to help you learn. Head to the â€Å"Study Room† tab to find the vocabulary videos. You can go through the â€Å"SAT Common 300† list, as it has a lot of words that overlap with ACT vocabulary. You can also go to the â€Å"Master† list to look up words you are having trouble with. Vocab Sushi If you like online quizzes, Vocab Sushi is a fun website that lets you test your vocab knowledge with quizzes and teaches vocab words by using them in sentences. This site is especially useful for the ACT since it emphasizes meaning in context. Vocab Sushi draws example sentences from real-life newspapers and magazines, helping you see how words are actually used in the real world. This is a great way to learn vocabulary in the way the ACT tests it – through context. What’s Next? What else do you need besides vocab to do well on the ACT? Learn 5 Critical Concepts you need to ace the ACT English section. We mentioned that the ACT focuses on vocabulary in context. Read more about that and get strategies for ACT reading. Read up on the 4 types of ACT reading passages, and learn how to stop running out of time on ACT reading. You might have heard the ACT doesn’t have a guessing penalty – but how can you use this to your advantage and guess effectively? Read about guessing strategies for the ACT. Want to improve your ACT score by 4+ points? Download our free guide to the top 5 strategies you need in your prep to improve your ACT score dramatically.

Social Media and Marketing mix Assignment Example | Topics and Well Written Essays - 2000 words

Social Media and Marketing mix - Assignment Example Some argue that social media marketing is a replica of the word of mouth marketing since people like the contents and share the information with friends thus increasing visits to the social network site. The change brought about by social media in marketing has seen the success of companies like Netflix whose presence is not only felt in the UK but also worldwide. For business entities to consider social media as an effective marketing tool, they must understand what the concept entails. Gordon (2014) suggests that the definition of social media is never complete without reference to Web 2.0 that has been defined as the new way through which people use the World Wide Web as place that continually alters contents to allow sharing in a collaborative way. The Web 2.0 came about or evolved from simple tasks of retrieving information to more complex functions like interoperability, interactivity, and collaboration. By definition, social media a collective term for internet based applications whose basis come from technological and ideological foundations of the Web 2.0 to allow creation as well as exchange user content (Brennan, & Croft, 2012). According to Brennan, & Croft (2012) social media are basically software tools that make it possible to create user specific content which they can share. For a website to meet specifications of a social network, it must have content, user profiles, method for connecting users and posting comments and also provisions for joining virtual groups of common interests like politics, fashion, or religion (Gordon, 2014). Also, there is always confusion between the terms social media and social media networks though the latter allows users to unite through generation of personal or private information profiles where the users can invite their friends to access the profiles (Sashi, 2012). Therefore, a more discreet definition of social media is that; social media is an environment where social networking occurs and

The Fight for Protecting Women Rights in 1700-1877 Research Paper - 1

The Fight for Protecting Women Rights in 1700-1877 - Research Paper Example Feminism, in the modern socio-political and philosophical domain, has been provided with special attention from every discipline of sociological studies. However, there is no denying that in order to evaluate the position of feminism as a poignant socio-political and philosophical discipline it is also important to acknowledge the history of women activism as well as the gradual process of development of the movement that was gradually germinating since late 16th century. Compared to the recent situation of women in civilized world they were tremendously challenged and consequently oppressed in the context of â€Å"expressing themselves in a patriarchal system that generally refused to grant merit to women's views.†1 One of the greatest feminist thinkers of all time, Simone de Beauvoir, in her essay â€Å"The Second Sex,† while attempted to evaluate the position of women in the traditional patriarchal system said that a woman in terms of patriarchal judgment is nothing but a womb, a mere organism for child production2. She also has specified that every time women have proved their existence as equal to their male counterparts in terms of merit and capacity of accomplishment the same system has declared that â€Å"they are not women, although they are equipped with a uterus like the rest.†3 It is clear from these observations that women in hands of the traditional social patriarchy are considered as mere instruments of sensuality, objects of attaining physical pleasure, an organic manifestation of sensuality and above all they are regarded as organisms without individual identity and human entity. The patriarchy has always denied acknowledging the humane attributes of a woman. The male-dominated social system always faced difficulty to share its monopolistic position with female counterparts and by denying humane attributes or entity of women they actually aimed at oppressing women for its selfish  benefits.