Six Faith Affirmations (Iman) and Importance of Shariah Essay

Six Faith Affirmations (Iman) and Importance of Shariah - Essay Example This paper is focused on interpretations of six faith affirmations and positions Shariah as a modern alternative for legal principles’ development. Six faith affirmations Iman has six basic pillars. In accordance with them every Muslim should believe in Allah, angels, revealed books, commissioned Missioners, resurrection and events of Qiyamah, predestination of all things in the world. It is possible to interpret these principles in the following way: belief in Allah should be considered as the first basic pillar of Iman. It is impossible to develop the Islamic personality avoiding this belief. Further on, it is evident that this principle is the basic need for every individual. God’s worshipping is possible only when this first belief is taken by Muslims for granted. Allah is the sole Creator and orders the actions of his creations only in the ways that may please him. God leads to paradise and people are guided only by the Creator. The Islamic personalities need Godâ €™s forgiveness. Belief in Allah should not be followed by Muslims only because it is a way to paradise. They can enter paradise only if they are allowed by God to enter there. The second pillar, belief in the Angels, can be explained as follows: angels exist among other creations of God. They are real beings and they were created from light. Qur’an describes angels: Jibreel is responsible for delivering revelation; Mika'il brings the rain, Israfil blows the horn on Qiyamah; Malik-ul-Maut takes away human souls after death. There are also the Noble Recorders responsible for recording of people's actions. The Protectors (Al-Mu'aqqibat) prevent people from death. Two angels, opposed to each other are Ridhwan and Malik. The former is responsible for Paradise and the latter for Hell. Munkar and Nakir are the questioners in the grave. There are also other angels, responsible for recording the future of fetus, those who entered the Haraam and some others. There are exact quotes in the divine books of Muslim that belief in the angels is one of the most important things for the Islamic personalities: â€Å"Belief in the angels is an integral part of Iman† (2/285 Al-Baqara), â€Å"Kufr with respect to the angels is Kufr† (4/136 An-Nisaa). Therefore, belief in the angels is the integrative part of belief in Allah. It is very important to believe in angels, because they are â€Å"spiritual mediators† of the words of Allah. It is possible to claim that every component of Iman is very important in the Islamic religion, but the role of angels as promoters of Allah intentions strengthens developments of Qur’an and the Sunnah. Belief in the Books of Allah is outlined in Qur’an, because they should be followed by truly devoted Muslims. These are: As-Suhuf of Ibrahim and Musa, Az-Zaboor given to Daud, At-Taurat revealed to Musa, Al-Injeel revealed to Isa, Al-Qur'an - the final revelation. Moreover, Qur’an has the following ch aracteristics: it is flawless (41/42 Fusilat); this book is the final authority (5/48 Al-Maidah), guidance and a mercy (10/37 Yunus). The importance and guidance of Qur’an is explained by the Prophet: â€Å"The Book of Allah; in it is news of those who came before you; news of what is to come after you; the ruling on that which is between you; it is the decisive criterion, and is not jest† (Six Affirmations of Iman). There are a lot of comparisons of this Holy Book and it is often mentioned that

Midazolam & Seizures Essay Example | Topics and Well Written Essays - 250 words

Midazolam & Seizures - Essay Example Midozolam increases the activity of GABA which gives a calming effect to the user. It also relaxes the skeletal muscles and result in sleep. The chemical in the medicine called benzodiazepines bind to the receptors of GABA which enhances the effect of GABA by increasing the frequency of chloride channel opening. According to (Silver,1994,pg 350-60) â€Å"Midazolam is a potent imidazobenzodiazepine used as a premedicant and as an anesthetic induction Agent†.Midazolam is likely an agonist at both BZ1 and BZ2 receptors. Its performance at PBRs is not certain. The quick encephalopathic effects ofmidazolam may be connected to the trizolam like potency and lipophilicity of midazolam. Which are greatest among thebenzodizepines. Midazolam may also exert some anticholinergic activity. Silver, T, 1994. SCIENTIFIC ARTICLE Evaluation of two dosages of oral midazolam as a conscious sedation for physically and neurologically compromised pediatric dental patients. Pediatric Dentistry, 16/5,

GDP and Business Environment of China

GDP and Business Environment of China Overview China is the oldest continuous major world civilization, with records dating back about 3,500 years. Successive dynasties developed a system of bureaucratic control that gave the agrarian-based Chinese an advantage over neighboring nomadic and hill cultures. Chinese civilization was further strengthened by the development of a Confucian state ideology and a common written language that bridged the gaps among the countrys many local languages and dialects. Whenever China was conquered by nomadic tribes, as it was by the Mongols in the 13th century, the conquerors sooner or later adopted the ways of the higher Chinese civilization and staffed the bureaucracy with Chinese. The last dynasty was established in 1644, when the Manchus overthrew the native Ming dynasty and established the Qing (Ching) dynasty with Beijing as its capital. At great expense in blood and treasure, the Manchus over the next half century gained control of many border areas, including Xinjiang, Yunnan, Tibet, Mongolia, and Taiwan. The success of the early Qing period was based on the combination of Manchu martial prowess and traditional Chinese bureaucratic skills. During the 19th century, Qing control weakened, and prosperity diminished. China suffered massive social strife, economic stagnation, explosive population growth, and Western penetration and influence. The Taiping and Nian rebellions, along with a Russian-supported Muslim separatist movement in Xinjiang, drained Chinese resources and almost toppled the dynasty. Britains desire to continue its illegal opium trade with China collided with imperial edicts prohibiting the addictive drug, and the First Opium War erupted in 1 840. China lost the war; subsequently, Britain and other Western powers, including the United States, forcibly occupied concessions and gained special commercial privileges. Hong Kong was ceded to Britain in 1842 under the Treaty of Nanking, and in 1898, when the Opium Wars finally ended, Britain executed a 99-year lease of the New Territories, significantly expanding the size of the Hong Kong colony. As time went on, the Western powers, wielding superior military technology, gained more economic and political privileges. Reformist Chinese officials argued for the adoption of Western technology to strengthen the dynasty and counter Western advances, but the Qing court played down both the Western threat and the benefits of Western technology. In Beijing, on October 1, 1949, Mao Zedong proclaimed the founding of the Peoples Republic of China (P.R.C.). The new government assumed control of a people exhausted by two generations of war and social conflict, and an economy ravaged by high inflation and disrupted transportation links. A new political and economic order modeled on the Soviet example was quickly installed. In the early 1950s, China undertook a massive economic and social reconstruction program. The new leaders gained popular support by curbing inflation, restoring the economy, and rebuilding many war-damaged industrial plants. The CCPs authority reached into almost every aspect of Chinese life. Party control was assured by large, politically loyal security and military forces; a government apparatus responsive to party direction; and the placement of party members into leadership positions in labor, womens, and other mass organizations. Natural resources Coal, iron ore, petroleum, natural gas, mercury, tin, tungsten, antimony, manganese, molybdenum, vanadium, magnetite, aluminum, lead, zinc, uranium, hydropower potential (worlds largest). Agriculture: Products Among the worlds largest producers of rice, wheat, potatoes, corn, peanuts, tea, millet, barley; commercial crops include cotton, other fibers, apples, oilseeds, pork and fish; produces variety of livestock products. Industry: Types Mining and ore processing, iron, steel, aluminum, and other metals, coal; machine building; armaments; textiles and apparel; petroleum; cement; chemicals; fertilizers; consumer products, including footwear, toys, and electronics; food processing; transportation equipment, including automobiles, rail cars and locomotives, ships, and aircraft; telecommunications equipment, commercial space launch vehicles, satellites. Trade in 2008 Exports $1.5 trillion: electrical and other machinery, including data processing equipment, apparel, textiles, iron and steel, optical and medical equipment. Business Environment in China Activity indicators Show the working of the economy as a whole. Consumer indicators Show the increase in the demand of consumer product but the unemployment is still rising. Business indicators Show that the profit margin is decreasing but the inventories are increasing yoy. External indicators Show that the import is increasing faster than the export of the country. Inflation indicators Show that the consumer price inflation is become negative but core price are not affected due to this. Financial market indicators Shows that investor are investing but wait for future interest rate cut so that they can get more fund at cheaper rate of interest. Analysis and Interpretation We can analysis from the 1st and 4th chart that the GDP of China is growing from last 5-6 years but it show the decline in the 2008-09 that might be because of the global recession going on. All China has growing economy which set the benchmark for the other country. We can analysis in the 2nd and 3rd chart that the urban fixed investment is very fluctuating from last 5-6 years in one year it increase and in the other year it decrease. But that might be the internal condition and demand and supply effect change the overall investment in the country. Analysis and Interpretation We can analysis from the 1st chart that the retail sales is increasing year after year and that is good sign for the economy as well as for the business environment is concern because it will generate new employment and source of income for the people of China. We can analysis from the 2nd chart that per capital income and consumption is fluctuating from last 5-6 year that might be due the changing in the per capital income and the price index of the country. But another positive sign we find that most of the time consumption is less that the income which means the people are able to save some amount from their income which is good sign for any country. We can analysis from the 3rd and 4th chart that the unemployment is increasing year after year and on the other hand in the 4th chart the employment is fluctuating but most of the time it is increasing. So we can find that the unemployment is increasing because of increasing in population more that the increasing rate of employment. Analysis and Interpretation We can analysis from the 1st and 2nd chart that the industrial output is increasing year after year which is good sign for the growth of the economy because as output increasing which means the sales will increase, if sales will increase then more income will generate, then it will increase money flow in the market. So all these things will effected just because of increasing output of the industry. We can analysis from the 3rd chart that the inventories of the industry is increasing year after year that might be good as well as bad sign for the industry because it has their own benefit like constant supply and its own risk like blockage of funds in the inventory. We can analysis from the 4th chart that the industry has earning a good profit margin from last 5-6 years which is good sign for the growth of the business in China and an opportunity for other to do business in the China. Analysis and Interpretation We can analysis from the 1st and 4th chart that import and export is increasing year after year in amount but if we find the increase in percentage then we find that the increase and decrease is very fluctuating from last 5-6 year. We can analysis from the 2nd and 3rd chart that export is increasing more that the export in last 4-5 years which means it helps to increasing the balance of payment of the economy of China. Analysis and Interpretation We can analysis from the all of the above chart that the price of all the commodities whether they are capital goods or house hold good is increasing year after year and it is always say that in the growing economy the prices are always increasing with the growth of the economy. Analysis and Interpretation We can analysis from the 1st and 2nd chart that the government has given more rate of return to its investor year after year which means the government want to increase the investment in the country. We can analysis from the 3rd and 4th chart that interest rate are decreasing year after year which means the people can borrow money at cheaper interest rate and then can get more return by investing in different sources of income. JAPAN Overview Legend attributes the creation of Japan to the sun goddess, from whom the emperors were descended. The first of them was Jimmu, supposed to have ascended the throne in 660 B.C. a tradition that constituted official doctrine until 1945. Recorded Japanese history begins in approximately A.D. 400, when the Yamato clan, eventually based in Kyoto, managed to gain control of other family groups in central and western Japan. Contact with Korea introduced Buddhism to Japan at about this time. Through the 700s Japan was much influenced by China, and the Yamato clan set up an imperial court similar to that of China. In the ensuing centuries, the authority of the imperial court was undermined as powerful gentry families vied for control. At the same time, warrior clans were rising to prominence as a distinct class known as samurai. In 1192, the Minamoto clan set up a military government under their leader, Yoritomo. He was designated shogun (military dictator). For the following 700 years, shoguns from a succession of clans ruled in Japan, while the imperial court existed in relative obscurity. First contact with the West came in about 1542, when a Portuguese ship off course arrived in Japanese waters. Portuguese traders, Jesuit missionaries, and Spanish, Dutch, and English traders followed. Suspicious of Christianity and of Portuguese support of a local Japanese revolt, the shoguns of the Tokugawa period (1603-1867) prohibited all trade with foreign countries; only a Dutch trading post at Nagasaki was permitted. Western attempts to renew trading relations failed until 1853, when Commodore Matthew Perry sailed an American fleet into Tokyo Bay. Trade with the West was forced upon Japan under terms less than favorable to the Japanese. Strife caused by these actions brought down the feudal world of the shoguns. In 1868, the emperor Meiji came to the throne, and the shogun system was abolished. Geographic An archipelago in the Pacific, Japan is separated from the east coast of Asia by the Sea of Japan. It is approximately the size of Montana. Japans four main islands are Honshu, Hokkaido, Kyushu, and Shikoku. The Ryukyu chain to the southwest was U.S.-occupied from 1945 to 1972, when it reverted to Japanese control, and the Kurils to the northeast are Russian-occupied. Land area: 152,411 sq mi (394,744 sq km); Analysis and Interpretation We can analysis from the above charts that consumption and inventories are increasing from last 2 years and private fixed investment is decreasing from last 1.5 year which means this disinvestment is going on just because of global recession going on in the world. Analysis and Interpretation We can analysis from the above chart that from last 2 quarters the GDP and industrial production is increasing which means the Japan has come out of the recession going on in the world economy and this is good sign for the future of the people of Japan and business going on in Japan. Analysis and Interpretation We can analysis from the above charts that prices where increasing from last 4-5 years but from last one year it is below zero which means due to recession the demand of the good are decrease which decrease the price of the commodity. Analysis and Interpretation We can analysis from the above charts that the unemployment is decreasing from the last 4-5 years but it suddenly increase in the current year and in last year just because of recession and it is permitted that it will decrease again in future also. In the other chart we find that from last 4-5 years the wages are quite constant but it suddenly decrease again due to recession only and we can say that it will again come to its resistance level when the economy will stable. Analysis and Interpretation We can analysis from the above charts that apart from the year 2008-09 the interest rate, monetary policy and money growth is increasing from last 3-4 year which is good sign for any economy. But if we look after the year 2008-09 then that is again the time period of recession which cant show the real picture of the economy. Text of report by official Chinese news agency Xinhua (New China News Agency) Tokyo, 5 December: China and Japan signed the China-Japan Long- Term Trade Agreement in Tokyo on 5 December. This provided a framework for trade exchanges between the two countries between 2006 and 2010. Chen Jian, assistant to Chinas minister of commerce and chairman of Chinas China-Japan Long-Term Trade Agreement Committee, and Koga Kensuke, chairman of Japans Japan-China Long-Term Trade Agreement Committee, signed the agreement. The core content of this long-term trade agreement is that China and Japan will further strengthen cooperation in energy conservation technologies and equipment as well as environmental protection technologies and equipment, and has reached agreement on Chinas export of coal to Japan and Chinas import of energy conservation and environmental protection equipment and technologies from Japan. This was the sixth time a similar agreement was signed since the first China-Japan Long-Term Trade Agreement was signed in 1978. The China-Japan Long-Term Trade Agreement has played an important role in maintaining the stable and rapid development of trade exchanges between the two countries. During this period, total bilateral trade between China and Japan increased from 4.82bn US dollars to 168bn US dollars in 2004. Total trade volume is expected to see further increases this year. Impact of agreement upon both the countries Build good relation between both of the countries. Overcome the weakness of one country by the strength of another country. Increase the trade between the two countries. Open route for future contracts also in different areas. CONCLUSION China and Japan are very popular countries in world. Both have contributed for the development of world economy and helps established the international market in world. China is popular for the production electronic products at very cheap prices. China is one of the fastest growing economies in the world. Japan is popular for development of new technology innovation and Japan is the second largest energy importer after United States. Japan is one of the best destinations for starting new business or we can say that it is an international opportunity to work with the technology conscious country so that it will helps to make a competitive edge for our business. Overall we can say that both the countries have their positive aspect as well as negative aspects. So it is very difficult to select one country to be the best because if we think for the international market we cannot select only one country for our business opportunity. So, both the countries are having good business opportunities. BIBLIOGRAPHY http://www.infoplease.com/ipa/A0107666.html?pageno=4 http://en.wikipedia.org/wiki/Japan http://www.newyorkfed.org/research/global_economy/japanecon_charts.html http://www.mofa.go.jp/POLICY/economy/japan/indicator2.pdf http://www.redorbit.com/news/international/327614/china_japan_sign_20052010_longterm_trade_agreement/index.html www.fundsupermart.com.my/main/research/viewHT http://www.capitaleconomics.com/clientarea/articles/China%20Chartbook%20(Feb%2009).pdf

Google Hacks: 100 Industrial-Strength Tips & Tools :: Essays Papers

Google Hacks: 100 Industrial-Strength Tips & Tools In April of 2002, the Google Engineering Team released an API (application programming interface) to their search engine technology. Initially aimed at software developers, the Google Web API program offers three services that developers can integrate into their own applications: access to the company's search engine; access to cached Web pages; and a spelling correction API that points users to alternate spellings of misspelled words typed into the search engine. The authors state in the preface that "the idea of Google Hacks is not to give some exhaustive manual of how every command in the Google syntax works, but rather to show you some tricks for making the best use of a search and show applications of the Google API that perform searches that you can't perform using the regular Google interface". (p. xviii) Learn to save time and get more precise results from your Google searches by getting the most out of Advanced Search or building/modifying code using the API. Sections devoted to search syntax are particularly helpful. Mari Stoddard, Head of Educational Services at Arizona Health Sciences Library, is a fan of Hack #11, date-range searching. The syntax allows you to narrow your search results to fresher content and to compare results over time. Although Google doesn't support "stemming", Hack #13 explains the full- word wildcard. (Google's wildcard character is *). Combine a special syntax with Google News (#32) and take advantage of its clustering capabilities. Try out examples of other hacks online at hacks.oreilly.com/pub/ht/2. In Chapter 8, The Webmaster Side of Google, topics range from the PageRank Algorithm and Google's AdWords program to how to remove your content from Google. You don't have to be the webmaster of a commercial site to find this information useful. Mari Stoddard thought this book was helpful "for people who don't spend their lives researching search engines" like she does because it organizes the hacks in one reference tool.

Since even before President Barrack Obama’s

Since even before President Barrack Obama’s first day in office, all eyes have been on him as a bastion of change and a way to get out of the economic conundrum America has gotten itself into.While the most recent presidents would have focused on the economy and how to revamp it, President Obama has taken the old school approach of fellow Democrat and former President Kennedy had employed during his term. His was a call to the whole population of America as well as to the leaders who direct its course – a call for action at the grassroots level of the country, while trying to shed light on his achievements and the direction he wants for Wall Street, Main Street and the whole country (Shear & Branigin).President Obama’s speech focused on the â€Å"irresponsibility and poor decision-making† of America’s institutions and individual attitudes, labeling greed and quick-profits as the culprits to the economic wreck (â€Å"Full Text† par 6).He blame s the mismanagement of the bigwigs of Wall Street trickling down to its rank and file memebers, the people’s wanton will to spend, and the insufficient policies of the government against the greedy behavior of the financial institutions (ibid par 3-7). He claims that these factors were the ones that started the domino-effect recession of America and affecting other countries’ economies as well.The case-in-point in his speech is that people should be more responsible and disciplined – not to live beyond their means and keep on spending and borrowing, but rather to get back to the basic values of saving and investing, and exporting rather than importing (ibid par 35).He believes that it is about time to lay down â€Å"a new foundation for growth and prosperity†¦built upon five pillars that will grow our economy and make this new century another American century† (ibid par 35-36). His vision is to have America continue as the world’s foremost nat ion in all aspects, especially economically, and bring back the trust of other nations.While he lamented about Wall Street’s and the financial corporate mogul’s attempts at gaining riches fast (therefore, costing them the future), he laid out his current plans and his plans for the future, though without detail. It was easy to get lost in the speech owing to the many things the President wants done in his term.It was like trying to solve every single problem that has plagued every past administration in one go. This is not to say that he’s bitten off more than he can chew and that he’s going to barf all of it in a matter of moments, that is a matter that only the future can say.What his speech suggests, however, is that the multitude of reforms that he envisions for America is not only a rebuilding of a rock-solid foundation, but also of renovating (though, I believe, not rebuilding as some critics would adamantly point out) the entire house.For sure, the speech has put to light many concerns that the country has had for the longest time, and Whitehouse believes that quick fixes, like those done in administrations past, are not enough to stop a roof from leaking when the storms come, much less get swept away by the winds and floods (Seib).Whether the president’s visions of a stronger America altogether remains to be seen, and, as the speech says, it depends on the people acting whether they can make things happen or not (â€Å"Full Text† par 61-62). A review of his speech tells us that it is up to the government to initiate reforms, but it is up to the people to reform themselves and help the government make the economic surgery a successful one.The speech has given people a new insight on America’s current economic situation (perhaps with the exception of his critics, opponents and those who reviled his act of covering Jesus’ name) that many are seeing the issue in a different light other than just point ing a finger at Wall Street.

Introduction to Wind Tunnel

The basic concept and operation of subsonic wind tunnel was demonstrated in this experiment by conducting airfoil drag analysis on a NACA 0015 airfoil. The small subsonic wind tunnel along with apparatus such as, the manometer rake, the inclined manometer and the pitot – static tube were used with different baffle settings to record varying pressure readings. To achieve this objective, some assumptions were made for the lower range of subsonic flow to simplify the overall analysis.From the obtained aerodynamic measurements using a pitot-static tube mounted ahead of the airfoil at the test section, the actual velocity was determined and by relating it to the theoretical velocity, the velocity coefficient was calculated. The velocity coefficient varies for each baffle setting by a factor of decimals, thus the velocity coefficient can be used as a correction factor. Further, the coefficients of drag were calculated for the following angles of attack, 10o, 15o, and 20o and were co mpared with the published values. INTRODUCTIONThe wind tunnel is an absolute necessity to the development of modern aircrafts, as today, no manufacturer delivers the final product, which in this case can be civilian aircrafts, military aircrafts, missiles, spacecraft, and automobiles without measuring its lift and drag properties and its stability and controllability in a wind tunnel. Benjamin Robins (1707-1751), an English mathematician, who first employed a whirling arm to his machine, which had 4 feet long arms and it, spun by falling weight acting on a pulley however, the arm tip reached velocities of only few feet per second. 4] Figure 1: Forces exerted on the airfoil by the flow of air and opposing reaction on the control volume, by Newton’s third law. [1] This experiment will determine drag forces experienced by a NACA 0015 airfoil, subjected to a constant inlet velocity at various baffle settings with varying angles of attack.DATA ANALYSIS, THEORATICAL BACKGROUND AND PROCEDURE Apparatus in this experiment as shown in the figure 2, consisted of a small subsonic wind tunnel. The wind tunnel had an inlet cross-section of 2304 in2 and an outlet crosses section of 324 in2. A large compressor forced air from room) into the inlet through the outlet tunnel and back into the room. This creates a steady flow of air and a relative high velocity can be achieved in the test section. Instrumentation on the wind tunnel consisted of an inclined manometer and a pitot-static tube in the test section also a manometer rake behind the tested objet (airfoil NACA 0015). The manometer rake consisted of 36 inclined manometers; number 36 is used as a reference for the static pressure. All other manometer measures the pressure behind the object in the airflow. Figure 2: Wind tunnel set up with instrumentation [5]Before the experiment was performed the laboratory conditions were recorded, the room temperature was measured to be 22. 5 C (295. 65) and the atmospheric pressur e 29. 49 inHg (99853. 14Pa). Theory The setup of this experiment includes a NACA 0015 airfoil placed in the wind tunnel. Considering the cross-sectional area A1, velocity V1, and the density of air p1 at the inlet and similarly the cross-sectional area A2, velocity V2, and the density of air p2 at the outlet and by assuming that no mass is lost between the inlet-outlet section, we get the mass conservation equation, p1 V1 A1 = p2 V2 A2 (1).Further, the airflow can be assumed to be incompressible for this experiment due to low velocity, the equation (1) can be reduced to V1 A1 = V2 A2 (2), moreover, the air is assumed to be inviscid, the Bernoulli’s equation, p1+12? V12=p2+12? V22 (3) and the equation (2) can be reduced to Vth=2(p1-p2)/? 1-A2A12 (4) in order to find the theoretical velocity. The pitot – static tube is used to calculate the actual velocity of the flow by using, Vact= 2(p2-p1)? (5). Furthermore, the velocity coefficient can be calculated using, Cv=VactVth (6).The pressure and shear stress acting on the NACA 0015 airfoil produces a resultant force R, which according to the Newton’s third law produces an equal and opposite reaction force. For this experiment, in the condition of lower range of subsonic velocity, it can be assumed that pressure and density will be constant over the airfoil thus, D=jj+1? (uo2-ui2)dy=-12? uj2+uj+12o-uj2+uj+12iyj+1-yj (7) can be used to calculate the drag and, CD=Drag12(? air*Velocity2*area) (8) can be used for calculating the coefficient of drag. Procedure Part 1, Variation of inlet cross section:In this first part we recorded the pressure behavior in the test section by decreasing the inlet area. After the safety instructions were given by the TA and a chart for the readings prepared on the white board the wind tunnel was turned on. Two students were taking readings simultaneously from the inclined manometer in the test section and the static pitot tube, the readings were recorded in table 1. Bet ween each reading the compressor was turned off due to the sound level, it was important to give the compressor some time after each start up to have the same conditions as in the previous measurement.Part 2, recording the wake profile of NACA 0015 For this part of the experiment the inlet area was fully opened and the airfoil first set to an angle of attack of 10, the wind tunnel was turned on and all 36 readings recorded (table 2) from the manometer rake. The measurement was repeated for an angle of attack of 15 and 20. RESULTS AND DISCUSSION The linear relationship between the V actual and the V theoretical approves of the theory that the velocity coefficient, Cv can be used as a correction factor for the theoretical velocity. This is further demonstrated in (Graph2). The calculated results are shown in table 1.The approximated literature values of the coefficient of drag for NACA 0015 airfoil were obtained from a NASA published report [3] for the 10o AoA, the percent relative er ror is 3. 1%, for 15o AoA, the percent relative error is 31. 0%, and for the 20o AoA, the percent relative error is 38. 7%. Increases in angle of attack lead to a more disturbed airflow behind the wing section. This disturbed airflow created more drag, these drag forces were clearly observable in table 3, 4. The angle of attack can be increased until the total drag forces become larger than the resultant lift- force; a wing is then no longer effective and stalls.The calculated drag forces are shown in tables 2-4. According to NASA, in their published report of Active flow control at low Reynolds numbers on a NACA 0015 airfoil, its is suggested that, by positioning the wake rake around 4. 5 times chord length behind wing to survey the wake. Further, two pressure orifices on opposite tunnel walls, aligned with the wake rake can be used to determine the average wake static pressure. This type of wake rake enables the wake to be surveyed with only a few moves of the wake rake, hence imp roving the measurements of drag using wake rake. 2] At large angles of attack, the upstream velocity of the airfoil can no longer be considered as the free-stream velocity, largely due to the miniature size of the wind tunnel relative to the NACA 0015 airfoil hence, the assumption that the uo max > ui is valid for this experiment.CONCLUSION Ergo, it is evidently seen in the graphs 1 and 2 that, the averaged velocity coefficient, Cv, 1. 063 can be used as the correction factor for the theoretical velocity. Further, the accurate (4-32) drag forces were calculated to be 2. 72 N, 13. 46 N, and 46. 4 N for the following angles of attack, 10o, 15o, and 20o. Moreover, the drag coefficient were also calculated based on the observed data and than were directly compared with the literature values. For the 10o of angle of attack, the percent relative error was very minimal at 3. 1% however; the drag coefficients for the 150 and the 20o were not very accurate, with the percent relative error of 31. 0% and 38. 7% respectively. This can be improved by implementing a smaller airfoil, so that the proportion of the wind tunnel covered by the airfoil is significantly smaller.Also, the skin friction losses along the edges of the wind tunnel may very well be taken into the account to achieve greater accuracy. Finally, it can be concluded that, as the angle of attack of the airfoil increases, the drag force will also increase due to the effect of flow separation. REFERENCES [1] Walsh, P. , Karpynczyk, J. , â€Å"AER 504 Aerodynamics Laboratory Manual† Department of Aerospace Engineering, 2011 [2] Hannon, J. (n. d. ). Active flow control at low reynolds numbers on a naca 0015 airfoil. Retrieved from http://ntrs. nasa. gov/archive/nasa/casi. ntrs. nasa. gov/20080033674_2008033642. pdf [3] Klimas, P.C. (1981, March). Aerodynamic characteristics of seven symmetrical airfoil section through 180-degree angle of attack for use in aerodynamic analysis of vertical axis wind turbi nes. Retrieved from http://prod. sandia. gov/techlib/access-control. cgi/1980/802114. pdf [4] Baals, D. D. (1981). Wind tunnels of nasa. (1st ed. , pp. 9-88). National Aeronautics And Space Administration. [5]Fig. 1, Wind tunnel set up with instrumentation, created by authors, 2012 APPENDIX Sample Calculations Note: AoA = ANGLE OF ATTACK. Sample calculations part 1, Baffle opening 5/5: Conversion inH2O to Pa (N/m2): 1 inH2O=248. 2 Pa (at 1atm) ?2inH2O ? 248. 82 PainH2O=497. 64 Pa Theoretical velocity: Equation (4): Vth=2(p1-p2)/? 1-A2A12 , where p1-p2=497. 64 Pa, A2=2304 in2, A1=324 in2, ? Density air (ideal gas law) laboratory conditions; 22. 5 C (295. 65K), 29. 49 inHg (99853. 14Pa): ? =pRT=99853. 14Pa287JkgK(295. 65K)? 1. 1768 kgm3 ?Vth=2(497. 64pa)/1. 1768kgm31-2304 in2324 in22=29. 37m/s Actual velocity: Equation (5):Vact= 2(p2-p1)? where p1-p2=522. 52 Pa, ? =1. 1768 kgm3 ? Vact= 2(522. 52Pa)1. 1768 kgm3=29. 80 m/s Velocity coefficient: Equation (6): Cv=VactVth=29. 8029. 37=1. 0 15 Sample Calculations Part 2, Angle of attack 10o, tube 1For dL, tube number 36 served as a reference pressure for all readings: 26. 4cm – 9. 2cm = 17. 2cm or 0. 172m Pressure difference, equation (7): ?p=SG*? H2O*g*L*sin? =1*1000kgm3*9. 81ms2*0. 172m*sin20o=577. 06 Pa Velocity, equation (8) note; pressure difference previously calculated: V1=2*SG*? H2O*g*L*sin air=2*577. 06 Pa1. 1768kgm3=31. 32 m/s Drag force, equation (9), for ui a velocity away from the tunnel wall was chosen to achieve a more realistic drag force: D=jj+1? (uo2-ui2)dy=-12? uj2+uj+12o-uj2+uj+12iyj+1-yj=-121. 1768kgm3(31. 32ms)2+( 31. 5ms)2o-2(31. 5m/s)2i0. 01m=0. 07 N Total drag force, summation lead to:Dtotal = 9. 04 N, however due to the boundary layer along the inner walls of the wind tunnel a more accurate summation is the sum of the values of tubes 4-32 which results in a total drag force of 2. 72 N. Coefficient of Drag Equation (9), for the drag force the more accurate summation of tube 4-32 was used : CD=Drag12(? air*Velocity2*area)=2. 72N12(1. 1768kgm3*31. 50ms2*(0. 1524m*1. 00m)=0. 031 To compare the Cd to a value found in literature the Reynolds number is required: Re=? air*V*cViscosity=1. 1768kgm3*31. 50 m/s*0. 1524m1. 789*10-5kgs*m=315782. 35 Observation and Results for Part 1Table 1, Observations/Results part 1| Baffle Opening| Inclined Manometer (inH2O)| Pa ( x 248. 82 Pa/inH2O)| Pitot Static (inH2O)| Pa ( x 248. 82 Pa/inH2O)| V theoretical (m/s)| V actual (m/s)| Cv| 5;5| 2. 00| 497. 640| 2. 10| 522. 52| 29. 37| 29. 80| 1. 015| 4;5| 1. 80| 447. 876| 1. 90| 472. 75| 27. 87| 28. 35| 1. 017| 3;5| 1. 15| 286. 143| 1. 25| 311. 02| 22. 27| 22. 99| 1. 032| 2;5| 0. 45| 111. 969| 0. 46| 114. 46| 13. 93| 13. 95| 1. 001| 1;5| 0. 05| 12. 441| 0. 08| 19. 905| 4. 64| 5. 82| 1. 252| Table 1: The theoretical velocity was calculated using the eq. (4) and the actual velocity was calculated using the eq. 5) from the obtained pressure data from the hand held pitot tube. The velocity coeffic ient, Cv, was calculated using the eq. (6). Note: The sample calculations are given in the appendix section of this report. Graph 1: The results from Table 1 were used to create the plot of V actual Vs. V theoretical. Graph 2: The plot of the velocity coefficient and the actual velocity. From the plot, it can be clearly seen the very minute difference between the velocity coefficient values. Observation and Results for Part 2 Table 2, Observations/Recordings part 2, Angle of attack 10 | Fluid length in tube ( ±. 1cm), Inclination 20|Tube Nr. | L (cm)| dL (cm)| Pressure (Pa)| u (m/s)| Drag force (N)| 1| 9. 2| 0. 07| 0. 07| 0. 07| 0. 07| 2| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 3| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 4| 9. 0| -0. 07| -0. 07| -0. 07| -0. 07| 5| 8. 8| -0. 13| -0. 13| -0. 13| -0. 13| 6| 8. 8| -0. 13| -0. 13| -0. 13| -0. 13| 7| 8. 8| -0. 07| -0. 07| -0. 07| -0. 07| 8| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 9| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 10| 9. 0| -0. 03| -0. 03| -0. 03| -0. 0 3| 11| 8. 9| -0. 03| -0. 03| -0. 03| -0. 03| 12| 9. 0| -0. 03| -0. 03| -0. 03| -0. 03| 13| 8. 9| -0. 07| -0. 07| -0. 07| -0. 07| 14| 8. 9| 0. 64| 0. 64| 0. 64| 0. 64| 5| 11. 0| 1. 68| 1. 68| 1. 68| 1. 68| 16| 12. 0| 1. 01| 1. 01| 1. 01| 1. 01| 17| 9. 0| -0. 03| -0. 03| -0. 03| -0. 03| 18| 8. 9| -0. 03| -0. 03| -0. 03| -0. 03| 19| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 20| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 21| 9. 0| -0. 03| -0. 03| -0. 03| -0. 03| 22| 8. 9| -0. 07| -0. 07| -0. 07| -0. 07| 23| 8. 9| -0. 07| -0. 07| -0. 07| -0. 07| 24| 8. 9| -0. 10| -0. 10| -0. 10| -0. 10| 25| 8. 8| -0. 10| -0. 10| -0. 10| -0. 10| 26| 8. 9| -0. 03| -0. 03| -0. 03| -0. 03| 27| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 28| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 29| 9. 0| 0. 00| 0. 00| 0. 00| 0. 00| 30| 9. 0| 0. 00| 0. 00| 0. 0| 0. 00| 31| 9. 0| 0. 07| 0. 07| 0. 07| 0. 07| 32| 9. 2| 0. 34| 0. 34| 0. 34| 0. 34| 33| 9. 8| 0. 34| 0. 34| 0. 34| 0. 34| 34| 9. 2| 0. 07| 0. 07| 0. 07| 0. 07| 35| 9. 0| 5. 84| 5. 84| 5. 84| 5. 84| 36| 26. 4| 0| Reference| 0. 00| 0. 00| Total drag force (1-35)| 9. 04| Total drag force (4-32)| 2. 72| Coefficient of drag calculated| 0. 031| Coefficient of drag literature| 0. 030| Table 3, Observations/Recordings part 2, Angle of attack 15 | Fluid length in tube ( ±. 1cm), Inclination 20| Tube Nr. | L (cm)| dL (cm)| Pressure (Pa)| u (m/s)| Drag force (N)| 1| 8. 2| 0. 06| 0. 06| 0. 06| 0. 06| 2| 8| -0. 01| -0. 01| -0. 1| -0. 01| 3| 8| -0. 01| -0. 01| -0. 01| -0. 01| 4| 8| -0. 04| -0. 04| -0. 04| -0. 04| 5| 7. 9| -0. 08| -0. 08| -0. 08| -0. 08| 6| 7. 9| -0. 04| -0. 04| -0. 04| -0. 04| 7| 8| -0. 01| -0. 01| -0. 01| -0. 01| 8| 8| -0. 01| -0. 01| -0. 01| -0. 01| 9| 8| 0. 19| 0. 19| 0. 19| 0. 19| 10| 8. 6| 0. 49| 0. 49| 0. 49| 0. 49| 11| 8. 9| 0. 49| 0. 49| 0. 49| 0. 49| 12| 8. 6| 0. 39| 0. 39| 0. 39| 0. 39| 13| 8. 6| 0. 56| 0. 56| 0. 56| 0. 56| 14| 9. 1| 1. 40| 1. 40| 1. 40| 1. 40| 15| 11. 1| 2. 51| 2. 51| 2. 51| 2. 51| 16| 12. 4| 2. 74| 2. 74| 2. 74| 2. 74| 17| 11. 8| 2. 40| 2. 40| 2. 40| 2. 40| 18| 11. 4| 2. 00| 2. 00| 2. 00| 2. 00| 9| 10. 6| 1. 47| 1. 47| 1. 47| 1. 47| 20| 9. 8| 1. 06| 1. 06| 1. 06| 1. 06| 21| 9. 4| 0. 79| 0. 79| 0. 79| 0. 79| 22| 9| 0. 63| 0. 63| 0. 63| 0. 63| 23| 8. 9| 0. 49| 0. 49| 0. 49| 0. 49| 24| 8. 6| 0. 39| 0. 39| 0. 39| 0. 39| 25| 8. 6| 0. 32| 0. 32| 0. 32| 0. 32| 26| 8. 4| 0. 26| 0. 26| 0. 26| 0. 26| 27| 8. 4| 0. 26| 0. 26| 0. 26| 0. 26| 28| 8. 4| 0. 26| 0. 26| 0. 26| 0. 26| 29| 8. 4| 0. 26| 0. 26| 0. 26| 0. 26| 30| 8. 4| 0. 26| 0. 26| 0. 26| 0. 26| 31| 8. 4| 0. 26| 0. 26| 0. 26| 0. 26| 32| 8. 4| 0. 32| 0. 32| 0. 32| 0. 32| 33| 8. 6| 0. 56| 0. 56| 0. 56| 0. 56| 34| 9. 1| 0. 56| 0. 56| 0. 56| 0. 56| 35| 8. 6| 6. 30| 6. 0| 6. 30| 6. 30| 36| 26. 2|   0. 00| Reference  | 0. 00  | 0. 00  | Total drag force (1-35)| 19. 55| Total drag force (4-32)| 13. 46| Coefficient of drag calculated| 0. 145| Coefficient of drag literature| 0. 100| Table 4, Observations/Recordings part 2, Angle of attack 20 | Fluid length in tube ( ±. 1cm), Inclination 20| Tube Nr. | L (cm)| dL (cm)| Pressure (Pa)| u (m/s)| Drag force (N)| 1| 8| 0. 16| 0. 16| 0. 16| 0. 16| 2| 7. 6| 0. 03| 0. 03| 0. 03| 0. 03| 3| 7. 6| 0. 03| 0. 03| 0. 03| 0. 03| 4| 7. 6| 0. 03| 0. 03| 0. 03| 0. 03| 5| 7. 6| 0. 03| 0. 03| 0. 03| 0. 03| 6| 7. 6| 0. 03| 0. 03| 0. 03| 0. 03| 7| 7. 6| 0. 03| 0. 3| 0. 03| 0. 03| 8| 7. 6| 0. 09| 0. 09| 0. 09| 0. 09| 9| 7. 8| 0. 16| 0. 16| 0. 16| 0. 16| 10| 7. 8| 0. 23| 0. 23| 0. 23| 0. 23| 11| 8| 0. 50| 0. 50| 0. 50| 0. 50| 12| 8. 6| 1. 17| 1. 17| 1. 17| 1. 17| 13| 10| 2. 37| 2. 37| 2. 37| 2. 37| 14| 12. 2| 3. 58| 3. 58| 3. 58| 3. 58| 15| 13. 6| 5. 39| 5. 39| 5. 39| 5. 39| 16| 17. 6| 7. 21| 7. 21| 7. 21| 7. 21| 17| 19| 7. 88| 7. 88| 7. 88| 7. 88| 18| 19. 6| 7. 88| 7. 88| 7. 88| 7. 88| 19| 19| 7. 04| 7. 04| 7. 04| 7. 04| 20| 17. 1| 5. 73| 5. 73| 5. 73| 5. 73| 21| 15. 1| 4. 09| 4. 09| 4. 09| 4. 09| 22| 12. 2| 2. 44| 2. 44| 2. 44| 2. 44| 23| 10. 2| 1. 37| 1. 37| 1. 37| 1. 37| 4| 9| 0. 66| 0. 66| 0. 66| 0. 66| 25| 8. 1| 0. 29| 0. 29| 0. 29| 0. 29| 26| 7. 9| 0. 23| 0. 23| 0. 23| 0. 23| 27| 7. 9| 0. 23| 0. 23| 0. 23| 0. 23| 28| 7. 9| 0. 19| 0. 19| 0. 19| 0. 19| 29| 7. 8| 0. 19| 0. 19| 0. 19| 0. 19| 30| 7. 9| 0. 19| 0. 19| 0. 19| 0. 19| 31| 7. 8| 0. 19| 0. 19| 0. 19| 0. 19| 32| 7. 9| 0. 46| 0. 46| 0. 46| 0. 46| 33| 8. 6| 0. 50| 0. 50| 0. 50| 0. 50| 34| 8| 0. 29| 0. 29| 0. 29| 0. 29| 35| 8| 6. 40| 6. 40| 6. 40| 6. 40| 36| 26. 2| 0| 0. 00| 0. 00| 0. 00| Total drag force (1-35)| 51. 30| Total drag force (4-32)| 46. 64| Coefficient of drag calculated| 0. 489| Coefficient of drag literature| 0. 300|