Wednesday, November 27, 2019
How to Make Homemade Ink in 4 Easy Recipes
How to Make Homemade Ink in 4 Easy Recipes Ink is one of the practical contributions of chemistry. Using basic materials found at craft supply stores, you can make invisible inks and tattoo inks in addition to writing and drawing inks. Although some ink recipes are closely guarded secrets, the basic principles of preparing ink are simple. All you have to do is mix pigment with a carrier (usually water). It helps to include a chemical thatà will allow the ink to flow fluidly and adhere to the paper (typically gum arabic, which is sold in powdered form). Black Permanent Inkà Recipe The most popular ink, black permanent ink can be prepared at home using the following materials: 1/2 tsp lamp black (This you can buy or make yourself by holding a plate over a candle and collecting the soot, or by collecting another form of char.)1 egg yolk1 tsp gum arabic1/2 cup honey Mix together the egg yolk, gum arabic, and honey. Stir in the lamp black. This will produce a thick paste that you can store in a sealed container. To use theà ink, mix this paste with a small amount of water to achieve the desired consistency. Applying a small amount of heat may improve the consistency of the solution, but be careful- too much heat will make the ink difficult to write with. Brown Inkà Recipe Brown ink is a popular alternative to black ink and can be prepared without any char or lamp black. All you need to make it is: 4 teaspoons loose tea or 4-5 tea bags1 teaspoon gum arabic1/2 cup boiling water Pour the boiling water over the tea. Allow the tea to steep for about 15 minutes. Squeeze as much tea (tannin) as possible from the tea or teabags. Stir in the gum arabic and mix until you have a consistent solution. Strain the ink so that you are left with a thick paste and allow it to cool before bottling it. Prussian Blue Inkà Recipe An even simpler recipe, and one that produces a bold color, is this recipe for Prussian blue, which painters have been using since the early 1700s. All you need to make it is: Prussian Blue pigment (sometimes sold as laundry bluing)Water Mix the pigment into the water until you have a rich blue ink with a thick consistency. Unless you happen to have a calligraphy pen, the easiest way to use these inks is with a homemade quill or a paintbrush. Blackberry Ink Recipe Like the recipe above, this one produces a rich blue ink, but one that is darker and made entirely of natural materials. To make it, you will need: 1 cup blackberries1/2 cup water1/2 tsp gum arabic4 drops thyme oil First, heat the blackberries in the water, pressing them to release the juice. Once the mixture is dark blue and all of the juice is released, strain the mixture and stir in the gum arabic until you have produced a thick paste. Add the thyme oil and stir. Allow the ink to cool before bottling it.
Saturday, November 23, 2019
Womenrsquo;s Rights Essay
Womenrsquo;s Rights Essay Womens Rights Essay Feminism and Womens Rights EssayFeminism emerged at the moment women realized having equal rights to men. The formal acceptance of feminist appeared 200 years ago, approximately at the same time when the bourgeois revolution stated in France and when the American states started their struggle for independence from the British domination. Since that time, more and more women have been fighting for the equality with men.If you have to write womens rights essay, you cannot avoid writing about feminist and gender discrimination. This article will help you in the process of womens rights essay writing. Womens Rights Essay: Discrimination IssueA womens rights essay is focused on gender discrimination. You may talk about any of these topics: Patriarchy and matriarchy: benefits and shortcomings.Is gender discrimination a common problem today? Feministic movements in the United States and in Europe, are there any differences?Womens rights in underdeveloped countriesDomestic violence and w omen as victims of abusive relationshipsWomens right to vote: the insight into the historyWhy the majority of servants are women? Is this a sign of discrimination? Men as the master of women and children: the overview of different opinions.Social position of women in different countriesIslamic feminism: does it exist in any form? How does it differ from traditional movement? Steps for Writing a Womens Rights EssayProblem. Think about the real problem to touch upon in your womens right essay. If there is no problem, there is no point in essay writing. Topic. Based on the chosen problem, you need to define a clear topic for further research and investigation. Topic should be narrow enough. Information. You need to gather supporting evidence for your womens rights essay writing; do not forget to cite data properly and fully. Outline. Outline is the backbone of the whole essay. Each point should be related to the key point. Do not forget about thesis statement. Draft. Draft is the first version of your written essay. You will have to produce several drafts until you come up with the best version. Revising. You need to revise and edit your essay several times until you are fully satisfied with the final written essay. Proper format is a must! Custom Essay Paper Writing ServicesIf you have no time or no desire to work on your womens rights essay, do not panic and do not be upset as there is an effective solution: custom essay paper writing services! We can write you a good essay for you! Moreover, we guarantee original essay writing from scratch! Plagiarism is excluded!
Thursday, November 21, 2019
Human Recource Managment Essay Example | Topics and Well Written Essays - 1500 words
Human Recource Managment - Essay Example Whatââ¬â¢s more, exchange of information is critical in creating competitive advantage for organizations. Since numerous markets are somewhat flooded with many organizations making efforts towards similar core competencies, firms are forced to enhance their information dissemination in order to produce a sustainable competitive advantage. The information age and its revolution has budged organizations away from being nearsightedly concerned with the utilization of tangible assets towards a holistic and unwavering interest in leveraging intangible assets, such as the management of information dissemination as a way of ensuring that competitive advantage is developed. Impact on business Dissemination of business information is a source of competitive advantage. Dissemination of information facilitates communication across all organizational boundaries, such that the entire business is able to seize the available opportunities and address its challenges by bringing all the stakeholde rs on board. In view of this, managers are able to use information dissemination as a tool of fostering productive and collaborative exchange between employees. With effective dissemination of knowledge, businesses are able to increase influential decisions significantly, since all the originationââ¬â¢s stakeholders are able to gain access to important strategic opinions, instead of holding such information on the hands of high-level management only. Whatââ¬â¢s more, by allowing employees to have access to each other, those who have the most current information are able to share it with those who derives benefit from it, rather than going through upright channels of upper management. In view of this, the organization is able to make quick decisions and implement them successfully. Integration of technology and HR Since Human Resources are one of the most critical assets in an organization, it is important that its adoption of technology is at the same level with marketing, pro duction or finance. This includes automation of performance appraisal systems, payroll, and employee benefits. Furthermore, deployment and management of technology in an effective way, means that any business organization would require knowledge workers, and it is the responsibility of HR function to manage the knowledge workers. This makes integration of technology and HR a must. Therefore, the point on adoption of technology in HR is very important because it is about efficiency of Human Resources, which is a very important tool for competitive advantage. Impact on business Integration of technology and HR facilitates harmonious, complementing and enhanced co-existing of business functions. While technology plays an important role in enhancing effectiveness of HR, adoption and managing of change is enhanced by HR that is brought about by the technology. Integrating technology and HR functions leads to successful business strategy execution, employeesââ¬â¢ contribution, administ rative efficiency and capacity for change. All these are fulfilled through the contribution of workers, including development, staffing, benefits, compensation, highly performing teams, among others. Actually, technology is bringing about the highest number of changes in the HR market. Besides, implementing of Human Resource Information Systems (HRIS) has a strong impact on business excellence, since this reduces
Tuesday, November 19, 2019
Music Mid-Term Essay Example | Topics and Well Written Essays - 1000 words
Music Mid-Term - Essay Example The concert lasted from 7:30 pm to 9:30 pm. The live performance included 14 professional musicians of the Denver Brass. The performances include Salsa, Day of the Dead Suite, Tango, and Sense Maya (Valencia, 2012). The performers played different classical songs that included Day of the Dead. Denver Brass constitutes of 14 professional musicians (The Denver brass, 2014). Denver Brassââ¬â¢s universal appeal defines its success and prominence. I enjoyed the magnificent surround sound and the entertaining and relaxing fresh musical styles that added vigor to the classical music live concert. I also enjoyed the fact that a diverse audience attended the concert thus denouncing the misconception that classic music is for elite, racist, and educated audience. Indeed, the live concert made me love attending another classical music live concert in the near future. Notably, the performance of the Drever Bass corresponds to the classical stylistic period learnt in class. The Colorado Fiesta: Dances with Brass depicted a classical musical genre as the band sung various classical songs. The programming of the music sought to share the Colorado history in an entertaining manner. The performance sought to bring a musical excursion from Spain to America. The live concert evoked emotions, images, and ideas. Indeed, the fiery dance, cool music, and sensual Flamenco guitar evoked happy and entertaining feelings. The live concert also evoked passionate and romantic feelings courtesy of the romantic song Day of the Dead. The Colorado Fiesta: Dances with Brass was equally colorful thus evoking a beautiful feeling. Some of the most Memorable features of the live concert included the fiery dance, sensual Flamenco guitar that evoked instrumental effects, and the entertaining dancing styles by Fiesta Colorado and Steve Mullins (Valencia, 2012). Additionally, I cannot forget the harmonious melodies and rhythms of the Drever Bass that motivated the audience to sing along to each song
Sunday, November 17, 2019
Patties Food Ltd Essay Example for Free
Patties Food Ltd Essay Aà leading manufacturer in Australia Industry: branded frozen food industry Major supplier and marketer of frozen savoury, dessert and fruit products. It has some iconic Australia brands in each of these product categories. the largest pie company in Australia Products: frozen savoury products: meat pies, sausage rolls, cheese and spinach rolls, pasties and quiches. Well-known frozen savoury brands: Herbert Adams, Fourââ¬â¢N Twenty, Snowy River and Wedgewood. dessert products: fruit pies, waffles, crumbles and crepes. fruit products: frozen whole fruits (e. g. herries, strawberries, cranberries and raspberries) processed fruit products (e. g. fruit smoothies that are cubes of frozen concentrated fruit which can be added to milk by the consumer to create a drink). Well-known dessert and fruit product brands: Creative Gourmet, Nannaââ¬â¢s and Chefââ¬â¢s Pride. Growth History: a small cake shop in the Victorian country town of Lakes Entrance (origins back 50 years). then purchased in 1966 by the Rijs family extended into pies and bread rolls continued to grow (through acquisition product development) Subsequently refocused around frozen savoury, dessert fruit products Listed on the ASX in 2006. Stakeholders: 2 members of Rijs family involved as board members. Shareholders Customers: retailers (e. g. supermarkets) foodservice outlets (e. g. sporting venues or cafes). Not direct consumers. 2 main distribution: In-Home [retailers where products are bought for home consumption] Out-of-Home [foodservice outlets where products are bought ready for consumption]. lt; 1% sales coming from exports, despite moves to enter the US market with its Fourââ¬â¢N Twenty products. Developed halal products in its Fourââ¬â¢N Twenty range with the intention of growing sales in Asia. Its headquarters production facilities are in Bairnsdale, Victoria. A PFLââ¬â¢s strategic framework PhasesBuild the baseDevelop and growExpand and extend Outcomesâ⬠¢ Low costs â⬠¢ High customer service levels â⬠¢ Defend the core â⬠¢ Category leadershipâ⬠¢ New products â⬠¢ Extra ranging â⬠¢ Extra distribution â⬠¢ More customersâ⬠¢ New channels â⬠¢ New regions â⬠¢ New categories â⬠¢ New sub-business Executive leadership team focused effort on the ââ¬ËBuild the Baseââ¬â¢ phase of our strategic plan, relentless drive to build revenue reduce factory conversion costs Result: -improved trading Rebuilt market share in In-Home savoury category(important) Result: revenue increasing well over the category growth. Our strong relationships with the major supermarkets Result: enabled Pattiesââ¬â¢ brands to strengthen as market leaders. Strategic intent of increasing our mix of revenue towards foodservice other non-grocery channels [products sold through the Out-of-Home market]. Result: Out-of-Home revenue increased to another record level Sales management restructured with a new Head of Sales (Tim Peters ex Fonterra) joining the business. Investment in sales resources in all regions of Australia ensures we have a truly national representation. New products, across all channels Result: increased sales Exceptional technical expertise (due to well experienced Rijs Family) Result: enabled the new products to be launched with rapid entry to market New Fourââ¬â¢N Twenty legendary Angus range developed and taken to commercialization stage during the year with the successful launch in June 2010. We expect this range to provide further growth in the near term. Increased marketing for the premium range of Herbert Adams savoury products. significant lift in sales in both In-Home and Out-of-Home channels achieved from the new TV commercial and consumer promotion celebrating Herbert Adams 100 years. Fourââ¬â¢N Twenty brand increased exposure with the sponsorship of the AFL [national league] All Australian Football team. This initiative, and the successful tendering of a number of additional stadium supply rights, provided good growth in our core pie range and confirmed Fourââ¬â¢N Twentyââ¬â¢s close connection with football in Australia. Patties Foods now has exclusive supply rights at most football stadia in Australia. Desserts business continues to grow with Nannaââ¬â¢s and Creative Gourmet brands retaining market leadership. lowered cost base and ensured the Creative Gourmet business can remain competitive in a very competitive market. (closed and relocated the frozen fruit packing operation from Silverwater NSW to Bairnsdale [in Victoria] in Feb. ) Manufacturing efficiencies are a critical driver of profitability. increased the economies of scale from the investment in production capacity during the year, further developed our team based continuous improvement projects. Thus conversion costs continued to improve A critical factor in our short and long term strategic plans: to maintain and build the high performance culture of the company. Introduced a comprehensive incentive scheme across the business this year. 340 people received monetary incentives based on specific targeted key performance indicators across the business. Balance sheet has been strengthened by the strong cash flow from both the improved trading and focused working capital management. This provides an excellent foundation for growth. Recent developments Patties Foods wins Reliance contract for BP sites won a $4. m+ contract to supply its products to the 200 BP branded sites in the Reliance Petroleum Group. The convenience stores will stock exclusively Fourââ¬â¢N Twenty and Herbert Adams products. In announcing the contract, Reliance commented, ââ¬ËPatties have proven they are best positioned to build our Pie Sausage Roll business through strong marketing activity, excellent cost price and most importantly, a good pie! ââ¬â¢ Patties Foods Head of Sales, Tim Peters, says the contract win confirms Patties Foodsââ¬â¢ market leadership in the Petrol and Convenience Channel. Creative Gourmet targets ââ¬ËSmoothieââ¬â¢ market Creative Gourmetââ¬â¢s innovative new range of Smoothie CubesTM proving a big hit with consumers. Launched in March with a national Television commercial featuring food presenter Maeve Oââ¬â¢Meara, the new frozen Smoothie CubesTM are available at all leading supermarkets. Desserts Marketing Manager, Jane Westney, describes Smoothie CubesTM as a ââ¬Ëgame changerââ¬â¢, set to revolutionise how Australians enjoy breakfast and snack-time. ââ¬ËSmoothie CubesTM fruit-packed frozen cubes for making delicious Smoothies in a moment. a product innovation rated extremely highly in market testing. Weââ¬â¢re confident theyââ¬â¢re set to change the way Australians enjoy breakfast and snack-timeââ¬â¢, Ms Westney said. The innovative Smoothie CubesTM come in 4 great flavours, Strawberry, Berry Antioxidant, Breakfast and Tropical. Look out for them in your local Supermarket. Fourââ¬â¢N Twenty rulesââ¬âHome and Away Fourââ¬â¢N Twenty extended its national marketing push into northern States with a 5-year sponsorship agreement with the Sydney Swans [football team]. Patties Foods GM Marketing, Mark Connolly said: Fourââ¬â¢N Twenty achieved instant popularity with Sydney fans since becoming the pie of choice served at the SCG [sports stadium] last year. ââ¬ËSydney fans have really taken to Fourââ¬â¢N Twenty at the footy and weââ¬â¢re delighted to be partnering with the Swans through this sponsorshipââ¬ânot only at the SCG, but by focusing on their positive community program.
Thursday, November 14, 2019
Hurrican Katrina :: Natural Disasters
Hurricane Katrina is one of the most powerful storms ever to threaten the United States for the past 100 years. It is the third most powerful hurricane to make landfall in the United States. The duration of the storm was from August 23 through August 31, 2005. The storm had a short period of time but its damages were so tragic that left long term damages (Figure 1). As shown in figure 2 you can see that on August 23rd Hurricane Katrina at first seems to be just a tropical depression in southeastern Bahamas. Then the tropical depression turned into a tropical storm on August 24th. During the afternoon it made landfall in south Florida with stronger winds and it turned into a category 1 (wind speeds of 75mph or greater) hurricane on August 25th. Hurricane Katrina strengthened and the worst was about to begin. (NOAA's National Climatic Data Center, 2005) On August 26th atmospheric and sea-surface conditions were contributing to cyclone's rapid growth that lead to Katrina attaining major hurricane status (Figure 3 and 4). Katrina continues to strengthen and move northwards. Katrina had sustained winds of 175 mph (280 km/h) in which the storm was labeled as a category 5 (Figure 5) hurricane. A category 5 hurricane is the most intense type of hurricane. As a category 5 hurricane Katrina continue to cause damages to many states for five days. (NOAA's National Climatic Data Center, 2005) Hurricane Katrina caused extensive damages along the central Gulf Coast states of the U.S. It affected cities such as New Orleans, Bahamas, South Florida, Louisiana, Mississippi, and Alabama. Hurricane Katrina caused damages of about $100+ billion and this is the most costly tropical cyclone of all time. It killed about 1,383 people and it can potentially be more. The Hurricane also left millions of people homeless and without anything to look forward to. Many people lost their homes, some their family and friends, and everything they own. The impact of Katrina's force will need weeks and months of recovery efforts to restore normality. We hope that the U.S does not have to face another hurricane like Katrina in a very long time. (Wikipedia, 2005) The rising sea and violent winds thrashing through the coast of Louisiana, Mississippi and Alabama was not the only thing responsible for the damages that the Hurricane Katrina left behind. The area's natural environment had human-made changes that increased the effects of the storm; giving it the opportunity to become one of the largest natural disasters in the nation's history.
Tuesday, November 12, 2019
Absolutism under Louis XIV
Louis XIV lived from 1638- 1715 and became the king of France in 1654. At the time he became king, France was financially ruined, politically corrupt, and divided between warring nobles and private armies and under the threat of riots from the people, especially in Paris. Louis XIV was an absolute monarch. Absolutism is the system of rule that allows one or more rulers to maintain absolute power over everything in the land. There is no higher power and even the Parliament could not overrule Louisââ¬â¢ decisions.As absolute monarch, Louis XIV set about reforming the state politically, economically and culturally. Louis XIVââ¬â¢s absolute monarchy had three components: â⬠¢ Centralization- this meant that the monarchy was the center of everything. All decisions from the monarchy were undisputable and final. All counties and villages were expected to follow this rule to create a united state and a centralized leadership. â⬠¢ Economic reforms- ââ¬Å"Under the guidance of Je an-Baptiste Colbert (1619-83) a ââ¬Å"modernâ⬠system of accountancy and yearly state budgeting was introduced.Colbert also supervised systematic attacks on corruption, removing, punishing, or paying off office holders. He also introduced tax reforms ââ¬â ending exemptions, tax-farming, and military collection of taxes ââ¬â and state support for industry, science, trade, and the arts. As regards the operations of the state, Colbert raised government income to the point when it could pay for quite massive expenses. Government subsidizing and directing of industry and manufacture increased productivity, raised wages, and brought France into the trade wars with the English and the Dutch.Colbert, like many French officials, repeatedly remarked that the inhabitants must pay the tax not only because it would raise additional funds, but also because paying the levy was ââ¬Ëthe obedience which is due His Majesty. â⬠â⬠¢ ââ¬Å"Theater of Monarchyâ⬠-this is the public representation of royal power and glory. Under the theory of absolutism, sovereignty is grounded in God, not the people. The glory of the monarch is, as it were, the earthly point at which is expressed both the glory of the state ââ¬â as a social whole ordered around and dependent upon the monarch ââ¬â and the glory of God from whom the monarch derives power and role.It was therefore important to show, through royal events and presentations, the state as personified by the king. Louis XIV distinguished between ââ¬Å"nature as it ought to beâ⬠, as ordained by God, and ââ¬Å"nature as it isâ⬠, disrupted by human activity. As the new, distant and mysterious God no longer intervened directly in the natural order, it fell to the monarch to uphold ââ¬Å"nature as it ought to beâ⬠and prevent it disintegrating into disorder. One of his reforms began with the acquisition of the providence of Roussillonnais in 1659, which was inhabited by a specific ethnic g roup known as the Catalans.Louis XIV understood that there can be no shared political allegiance without shared cultural values. Thus a government, if it is to exercise its political authority in an area, must first make the region culturally homogeneous with the ruling nation. Louis XIV undertook to replace the Catalan ethnic identity with the French one, mandating the foods, clothing, legal system, language, educational institutions, and religious traditions that should be used in the province. The Catalans did not agree with Louis and made it clear with smuggling, legal battles and even open rebellion.They wished to maintain their own culture and laws and did not want to accept the monarchy as their ruler. Like all peasants, they were reluctant to pay taxes to the monarchy and many turned to smuggling as an alternative. By the 1680ââ¬â¢s, however, Louis XIV and his government were successful in achieving their goal of political assimilation. The Roussillonais had accepted Fran ce as their political rules but continued to conduct their legal, commercial, judicial, and religious business in the Catalan language, continued to dress as Catalans, to give their children Catalan names, and to celebrate traditional feasts.They were quite firmly French in a political sense, and equally firmly Catalan in their culture. A trend that began in the 17th century was for the ruler to govern from one location versus the many homes and palaces of the past. Louis XIV was one such ruler, moving from the royal palace of the Louvre in Paris to a permanent home in Versailles. It was from this location that he ruled France for his entire reign. Louis XIV was also known as the ââ¬Å"sun kingâ⬠due to his use of the symbol as his personal emblem.As the highest star, now accepted by science as the centre of the universe, the sun was an obvious choice to symbolize absolutismââ¬â¢s claim to constitute the political centre of earthly life. The sun was both terrifying and awe inspiring, dazzling through its brightness, yet also warming and beneficent, and without its presence all life would whither away. One of the ways a monarch distanced himself from his subjects was to show his magnificence and largesse. This came in the form of elaborate operas, lavish banquets and court music.It was not uncommon to have fountains with slowing wine, roast oxen, coins minted for the occasion and bread handed out to the masses. This was to show the generosity and benevolence of the ruler and assure the people that their trust in the monarchy was well placed. It also served to reiterate the idea that the monarch was the center of everything and should be respected as such. Not everything regarding absolutism was beneficial, especially for the peasants of the land.The taxes imposed by Louis XIV and his government went far to provide funds for the monarchy and various military skirmishes, but The accumulative effect of these taxes was well observed by the royal commission ers sent to investigate the collection of taxes in the Orleanais and Le Maine in 1687 who observed that: there are hardly any peasants that own propertyâ⬠¦there are only small farmers who own nothing. The proprietors must furnish them with cattle, advance them money on which to live, pay their tallies and take in payment the peasantââ¬â¢s entire portion of the harvest. Even this is sometimes insufficient to cover his debts.Thus the small farmers earn nothing; they leave the land as destitute as they came to it. What cash was left they said went into paying taxes so that there was almost no money left for individuals; from this comes the decline of commerce. As a result, riots and rebellions by the peasants were common. Tax collectors met with violence or even death in some instances. It was not until Louis XIVââ¬â¢s General Controller of Financeâ⬠, Jean-Baptise Colbert changed the way things were done regarding the taxes. Colbert's everyday management of the taxes was intelligently conceived precisely to reduce the difficulties experienced earlier.Much effort went into collecting existing taxes as equitably as possible, into preventing the accumulation of arrears (those of the final years of the war being formally cancelled), and into making the most unpopular forms of coercion a last resort. 94 Although the revenue from indirect taxes was greatly increased this was achieved without creating new levies. The significance of this policy was emphasized when financial pressure was increased after the renewal of war in 1672, with the new duties of 1675, the marque d'etain and the papier timbre, setting off the last major rebellions of the ancient regime.Under Louis XIVââ¬â¢s absolute rule, France enjoyed a peaceful and prosperous era. Colbert reformed the taxes and they dwindled down to custom duties, a tax on salt and a tax on land. He also encouraged trade and commerce by the merchants and inventors of the land and sought to decrease the Frenchà ¢â¬â¢s dependence on foreign goods. These acts stopped the internal civil wars until almost a hundred years later. During Colbert's ministry the position of the laborers was doubly affected, by more stringent tax assessment and by a sequence of good harvests which resulted in low grain prices.Since these trends favored the mass of poor peasants, there was little prospect of uniting communities in revolt behind an unpopular minority of the rich, whose difficulties were in any case only relative. It was not until Napoleon that France had internal discord again. Other areas of improvement were the legal reforms Louis XIV implemented. The major legal code instituted at this time was the basis of the Napoleon Code which in turn is the basis for the modern French legal codes.The War of Spanish Succession began when the King of Spain, Charles II, bequeathed all his possessions to Philip duc Dââ¬â¢anjou, who was the grandson of Louis XIV. This made Philip the king of Spain. Aside from the fact that others wanted to claim the throne for themselves, the crowning of Philip assured Louis XIV of a Spanish alliance in his quest to expand. Other countries joined the side of the Holy Roman Empire, who wanted to stop France from expanding any further. Philip and Spain sided with Louis XIV and France. The war was fought both in Europe and in North America, where it was known as the ââ¬Å"Queen Anneââ¬â¢s War.â⬠The war lasted for over a decade and as a result, Philip was removed from the line of succession for the throne of France. This made the opposition happy since a union of France and Spain was now impossible. In the end, Louis XIVââ¬â¢s numerous wars and extravagant palaces and chateaux effectively bankrupted the State (though it must also be said that France was able to recover in a matter of years), forcing him to levy higher taxes on the peasants and incurring large State debts from various financiers as the nobility and clergy had exemption from payin g these taxes and contributing to public funds.Yet, it must be emphasized that it was the State and not the country which was impoverished. Before his death in 1715, Louis XIV determined that his five year old grandson, Louis XIII would succeed him to the throne. He is alleged to have told the child ââ¬Å"Do not follow the bad example which I have set you; I have often undertaken war too lightly and have sustained it for vanity. Do not imitate me, but be a peaceful prince, and may you apply yourself principally to the alleviation of the burdens of your subjectsâ⬠.Although Louis XIV did make some mistakes during his reign, he had many victories as well. His display of absolute monarchy set an example for many of the European princes, who followed his examples of art, food and political systems. Absolutism fell out of favor among the monarchy not long after Louis XIV died but the gains that he made provided a stable base for France to prosper in the future. Louis XIV had been ma rried twice and fathered both legitimate and illegitimate children, none of whom followed in his footsteps of absolutel rule.Works Cited Briggs, Robin. Communities of Belief: Cultural and Social Tension in Early Modern France. Oxford: Clarendon Press, 1995. Parker, David. ââ¬Å"French ââ¬ËAbsolutism'. â⬠History Review (1997): 14+. Stewart, David. Assimilation and Acculturation in Seventeenth-Century Europe: Roussillon and France, 1659-1715. Westport, CT: Greenwood Press, 1997. Wilson, Peter H. Absolutism in Central Europe. London: Routledge, 2000.
Sunday, November 10, 2019
Whap Chapter 15
Chapter 15 1. The economy of the Song Dynasty was one of the most prosperous and advanced economies in the medieval world. Monetary gain was assured from the vigorous overseas trade and indigenous trade along the Grand Canal and Yangzi River 2. The Tang Dynasty focused on education and foreign policy while the Song Dynasty focused on economic growth and the arts. 3. Under Emperor Taizong Li Shimin's wise governing, the national strength and social development of the Tang Dynasty reached an unparalleled prosperity ââ¬â economy and commerce flourished, the social order was stable,corruption never existed. . Zhngguo translates traditionally as the ââ¬Å"Middle Kingdom. â⬠Only in the nineteenth century, Zhongguo became the common name for the country. During this time China expelled and Christians and outlawed the religion. They also started to become more internal and did not try to expand. 5. The Song eventually fell to the Mongols in 1279, who moved against the Southern Son g years after the forces of Genghis Khan had defeated the Jin.The Mongols had superior military organization and a better grasp of the advances in military technology 6. During the Sung dynasty the monumental detail began to emerge. A single bamboo shoot, flower,or bird provided the subject for a painting. Among those who excelled in flower painting was the Emperor Hui-tsung,who founded the imperial academy. 7. The most important technological innovation of the Ancient Period was the creation of the wheel. The wheel allowed humans to transport goods over long distances.People could also travel longer. 8. From the fifth century AD Confucian orthodoxy retreated before the popularity of Buddhism and Daoism. But a renaissance came during the Song dynasty when Confucianism responded to the challenge and developed its own metaphysics. This new trend is known as Neo-confucianism, and its main exponent was Zhu Xi (1130-1200). It subsequently became the main orthodoxy of the scholar official s until the demise of the imperial system in 1912. 9.Because of the remarkable durability of Chinese civilization as well as its marvelous technological and economic innovations, other cultures began to imitate China. Japan, Korea, and Vietnam were all drawn into China's cultural and political orbit in the post classical period. Each country interacted with China differently 10. It indicated that this person was of such high social status that she didn't have to do any work ââ¬â that she could be carried from place to place by servants, that her every need would be catered to by others.
Thursday, November 7, 2019
Electronic Voting Machine Essay Example
Electronic Voting Machine Essay Example Electronic Voting Machine Essay Electronic Voting Machine Essay International Journal of Information and Electronics Engineering, Vol. 3, No. 2, March 2013 A Preview on Microcontroller Based Electronic Voting Machine Diponkar Paul and Sobuj Kumar Ray, Member, IACSIT Abstract- Voting is most pivotal process of democratic society through which people determine itââ¬â¢s government. Governments around the world are increasingly considering the replacement of traditional paper-based voting schemes with electronic voting systems. Elections of Bangladesh are conducted most exclusively using electronic voting machines developed over the past three years. In this paper we describe the design, construction and operation of a digital voting machine using a microcontroller profoundly. Again we also portray counting system of votes, market survey and cost analysis. Index Terms- Voting system, atmega16l microcontroller, voting analysis, security of EVM. I. INTRODUCTION Voting is a crucial device to reveal the opinion of a group on an issue that is under consideration. Based on the promise of greater e? iency, better scalability, faster speed, lower cost, and more convenience, voting is currently shifting from manual paper-based processing to automate electronic-based processing. The term ââ¬Å"electronic votingâ⬠characteristically depicts to the use of some electronic means in voting and ensure the security, reliability, guarantee and transferency[1],[2]. Now a day the wide range of application of voting inclu de its use in reality student body elections, shareholder meetings, and the passing of legislation in parliament. Perhaps the most important, in? ential, publicised, and widespread use of voting is its use in national elections. Compared to its traditional paper-based counterpart, electronic voting is considered to have many greater potential bene? ts. These bene? ts include better accuracy by eliminating the negative factor of human error, better coverage for remote locations, increased speed for tally computation, lower operational cost through automated means, and the convenience of voting from any location Whether or not electronic voting is a necessary replacement for the traditional paper-based method, it is irrefutable that the conduct of voting as been shifting to the use of electronic medium. To date, electronic databases are used to record voter information, computers are used to count the votes and produce voting results, mobile devices are used for voting in interactive television shows, and electronic voting machines have been used in some national elections. Generally, the term ââ¬Å"electronic votingâ⬠refers to the de? nition, collection, and dissemination of peopleââ¬â¢s opinions with the help of some machinery that is more or less computer supported. Despite Manuscript received August 15, 2012; revised October 12, 2012. The authors are with the Department Electrical and Electronic Engineering, World University of Bangladesh, Dhaka, Bangladesh (e-mail: [emailprotected] com, [emailprotected] edu. sg) the transition from traditional paper-based systems to electronic medium, the purpose and requirements for voting remain. Voting is a decision making mechanism in a consensus-based society and security is indeed an essential part of voting. The critical role in determining the outcome of an election, electronic voting systems should be designed and developed with the greatest care. However, a number of recent studies have shown that most of the electronic voting systems being used today are fatally defective [3], [4], [5] and that their quality does not match the importance of the task that they are supposed to carry out. Flaws in current voting systems, which were discovered through testing and other analysis techniques, have stimulated a number of research efforts to mitigate the problems in deployed voting systems. These efforts focused on ameliorating security primitives, such as the storage of votes [6], [7] and auditing [8], and on formally assessing and making procedures more effective [9], [10]. Finally, the standards that set the functional and performance requirements against which the systems are developed, tested, and operated have often been found to be inadequate [11], [12], [13]. Among the reasons for concern, critics include vague and incomplete security guidelines, insufficient documentation requirements, and inadequate descriptions of the configuration of commercial software. An electronic voting machine has been designed by a microcontroller for which the code is written in assembly language. Various code protection schemes specified by the manufacturer of the microcontroller are used to prevent inadvertent or deliberate reading and reproduction of the code contained in the microcontroller. The election data contained in the EEPROM of the microcontroller can download into a central computer for tabulations. The security of data in this computer is enforced by generating digital signatures for each data file created. This process makes it impossible for anyone to substitute wrong or deliberately altered data files at any intermediate stage between the capturing of voterââ¬â¢s intent by the machine and the final results tabulations. Prior to the election, all con? guration data is set up on the counting server. The con? guration is then transferred to the ballot-box server. Con? guration data include: candidate names, polling station identity, and a list of barcodes. During the voting period, voters are authenticated as per the traditional paper-based voting, and asked whether they wish to vote electronically or use the traditional paper-based method. A voter choosing to use the traditional paper-based method proceeds by being given a ballot paper, casting the vote on the ballot paper, and placing the ballot paper in a ballot-box. On the other hand, a barcode is chosen at random and is given to the voter choosing to use eVACS. Voter authorisation on the electronic voting booth computer is by 185 DOI: 10. 7763/IJIEE. 2013. V3. 295 International Journal of Information and Electronics Engineering, Vol. 3, No. 2, March 2013 using the barcode. The electronic voting booth computer communicates the barcode to the ballot-box server for validation and to inform that the voting process is initiating. Upon validation of an invalid barcode, the ballot-box server returns an error message to the voting booth computer. Otherwise, the ballot-box server returns the equivalent of a ballot-paper containing the names of candidates to the voting booth computer. The voter may select the candidates in a particular preference ordering, and restart or complete their selection afterwards. The selection is displayed on the screen forcon? rmation, and the voter is allowed to change or con? rm their selection. The voting booth computer returns a warning given invalid selection or informal vote, however casting invalid or informal vote is allowed. The voter con? ms the selection by using the barcode, and both the vote and a log of key sequence pressed are then communicated to the ballot-box server. The ballot-box server checks that the same barcode is used to initiate the server counts the votes, and produces a voting result. II. HARDWARE DEVELOPMENT OF ELECTRONIC VOTING MACHINE Fig. 1. Block diagram of digital voting system Fig 2. Circuit diagram of the digital voting system A. Circuit Description The high level digital voting machine built with ATmega16 Micro controller. The Micro controller port D uses for LCD display and port C. (pin 22) uses for voting power or presiding officers button. The candided button input from Port C. 1 ââ¬â C. 4 (pin 23 to 26; 4 candided). The output LED and buzzer uses Micro controller port C. 5 and C. 6. The LCD backlight also connected to port C. 7 via a transistor. At the starting of voting the election commission offices setup the machine at the centre. Then power on the switch and sealed it that nobody can power off. The presiding officer identifies the original voter of that particular area and pushes the voting power button. The voting power LED glow then and continue it until once press the candided buttons. The voter then goes to the secret room where Voting unit placed and press button beside his candided symbol. Voter can watch success of voting by glowing confirmation LED and beep indication. The presiding officer can also hear beep sound watch a confirmation LED. Same time the voting power goes down and nobody can vote again. Mainly when presiding officer press voting power button, Micro controller start scanning from pin 23 to pin 26. When get response from a specific pin, increase the counter one of that candided and stop scanning. So it is not possible to voting twice or more. All the counter result store at Micro controller EEPROM. When the voting is under process it will showed at display ââ¬Å"Voting under Processâ⬠. At the end of voting we need to know result. Then election commission or presiding officer presses the secret key (password). Now the Micro controller shows the result and supply the power to LCD backlight that it illuminated. If it needs to return voting process again one should press another secret key. There uses a transistor to operate buzzer and confirmation LED with proper current. There also uses a voltage regulator (7805) to supply 5v continuously. Here uses a dry cell 9V battery as power source. The power consumption of the system is very low (50mW150mW varying). After collected data and need erase recorded data from EEPROM just broken the sealed on power button and power off the system. Now the system is ready for next election. This measurement System includes the following components: Voting Unit Control Unit Confirmation Unit Display Unit (LCD) Power Supply Unit B. Voting Unit Fig. 3. Output circuit diagram of the digital voting system Fig. 4. Voting 186 International Journal of Information and Electronics Engineering, Vol. 3, No. 2, March 2013 Fig. 5. Confirmation unit In this Voting unit we have been used five button switch and five 2. 2K? resister which connected to the five button switches. C. Buzzer A buzzer or beeper is an audio signaling device, which may be mechanical, electromechanical or piezoelectric. Typical uses of buzzers and beepers include alarm devices. These devices are output transducers converting electrical energy. As power is applied this mechanical device will energize and by doing so interrupt the power source and the cycle continue until the power is removed. The frequency of oscillation is strictly dependent on mechanical inertia. The piezo buzzer produces sound based on reverse of the piezoelectric effect. The generation of pressure variation or strain by the application of electric potential across a piezoelectric material is the underlying principle. These buzzers can be used alert a user of an event corresponding to a switching action, counter signal or sensor input. They are also used in alarm circuits. The buzzer produces a same noisy sound irrespective of the voltage variation applied to it. It consists of piezo crystals between two conductors. When a potential is applied across these crystals, they push on one conductor and pull on the other. This, push and pull action, results in a sound wave. Most buzzers produce sound in the range of 2 to 4 kHz. The Red lead is connected to the Input and the Black lead is connected to Ground. D. Light Emitting Diode (LED) A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness. When a light-emitting diode is forward-biased (switched on), electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the color of the light (corresponding to the energy of the photon) is determined by the energy gap of the semiconductor. LEDs are often small in area (less than 1 mm2), and integrated optical components may be used to shape its radiation pattern. LEDs present many advantages over incandescent light sources including lower energy consumption, longer lifetime, 187 mproved robustness, smaller size, and faster switching. LEDs powerful enough for room lighting are relatively expensive and require more precise current and heat management than compact fluorescent lamp sources of comparable output. Light-emitting diodes are used in applications as diverse as replacements for aviation lighting, automotive lighting (in particular brake lamps, turn signals, and indicators) as wel l as in traffic signals. LEDs have allowed new text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology. Infrared LEDs are also used in the remote control units of many commercial products including televisions, DVD players, and other domestic appliances E. Controller Unit A control unit in general is a central part of the machinery that controls its operation, provided that a piece of machinery is complex and organized enough to contain any such unit. One domain in which the term is specifically used is the area of computer design. In this work Microcontroller ATMEGA 16L is used as the controller unit which controls the sensed signal. A single highly integrated chip that contains all the components comprising a controller. Typically this includes a CPU, RAM, some form of ROM, I/O ports, and timers. Unlike a general-purpose computer, which also includes all of these components, a microcontroller is designed for a very specific task to control a particular system. As a result, the parts can be simplified and reduced, which cuts down on production costs. Microcontrollers are sometimes called embedded microcontrollers, which just mean that they are part of an embedded system that is, one part of a larger device or system. F. Power Supply Unit Power supply is a very important part of electronic circuit this circuit required fixed +5 V supply so to fix this voltage we needed voltage regulator. In this work used 7805 Voltage regulator which output fixed +5 volt. A voltage regulator generates a fixed output voltage of a preset magnitude that remains constant regardless of changes to its input voltage or load conditions. There are two types of voltage regulators: linear and switching. A linear regulator employs an active (BJT or MOSFET) pass device (series or shunt) controlled by a high gain differential amplifier. It compares the output voltage with a precise reference voltage and adjusts the pass device to maintain a constant output voltage. G. Display Unit Display device shown the result of the measuring instrument. A observer can see the result and observe the temperature of electrical machine. In this work we used a 216 character LCD (LM016L) display. A liquid crystal display (LCD) is a thin, flat electronic visual display that uses the light modulating properties of liquid crystals. H. Printed Circuit Board A printed circuit board, or PCB, is used to mechanically International Journal of Information and Electronics Engineering, Vol. 3, No. 2, March 2013 support and electrically connect electronic components using conductive pathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate. It is also referred to as printed wiring board (PWB) or etched wiring board. A PCB populated with electronic components is a printed circuit assembly (PCA), also known as a printed circuit board assembly (PCBA). Printed circuit boards are used in virtually all but the implest commercially produced electronic devices. PCBs are inexpensive, and can be highly reliable. They require much more layout effort and higher initial cost than either wire wrap or point-to-point construction, but are much cheaper and faster for high-volume production; the production and soldering of PCBs can be done by automated equipment. Much of the electronics industrys PCB design, assembly, and quality control needs are set by standards that are pu blished by the IPC organization. Pin descriptions of ATmaga16L Microcontroller VCC: Digital supply voltage. GND: Ground. Port B (PB7 PB0) Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port B also serves the unctionââ¬â¢s of various special features of the ATmega16. Port C (PC7 PC0) Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port C output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up resistors are activated. The Port C pins are tri-stated when a reset condition becomes active, even if the clock is not running. If the JTAG interface is enabled, the pull-up resistors on pins PC5 (TDI), PC3 (TMS) and PC2 (TCK) will be activated even if a reset occurs. Port C also serves the functions of the JTAG interface and other special features of the ATmega16. Port D (PD7 PD0) Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port D output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up resistors are activated. The Port D pins are tri-stated when a reset condition becomes active, even if the clock is not running. Port D also serves the functions of various special features of the ATmega16. Port A (PA7 PA0) Port A serves as the analog inputs to the A/D Converter. Port A also serves as an 8-bit bi-directional I/O port, if the A/D Converter is not used. Port pins can provide internal pull-up resistors (selected for each bit). The Port A output buffers have symmetrical drive characteristics with both high sink and source capability. When pins PA0 to PA7 are used as inputs and are externally pulled low, they will source current if the internal pull-up resistors are activated. The Port A pins are tri-stated when a reset condition becomes active, even if the clock is not running. RESET Reset Input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a reset. AVCC Fig. 6. Printed circuit board (pcb) of this voting system I. Pin Configurations Discription Fig. 7. Pin configuration of Atmega16L microcontroller[14] AVCC is the supply voltage pin for Port A and the A/D Converter. It should be externally connected to VCC, even if 188 International Journal of Information and Electronics Engineering, Vol. 3, No. 2, March 2013 he ADC is not used. If the ADC is used, it should be connected to VCC through a low-pass filter AREF AREF is the analog reference pin for the A/D Converter. III. SOFTWARE DEVELOPMENT FOR ELECTRONIC VOTING MACHINE Flowchart of Program: user. In both of the systems that we analyzed, we found major security vulnerabilities that could compromise the confidentiality, integrity, and availability of the voting process. The results of our study suggest that there is a need for a drastic change in the way in which electronic systems are designed, developed, and tested. Researchers, practitioners, and policy makers need to define novel testing approaches that take into account the peculiar information flow of these systems, as well as the combination of computer security mechanisms and physical procedures necessary to provide a high level of assurance. Electronic voting software is not immune from security concerned. Here we describe Hack-a-vote, a simplified DRE voting system that we initially developed to demonstrate how easy it might be to insert a Trojan horse into a voting system. In case of a discrepancy, there either must be a row with the fresh random number. But without a mark of the voter or the alignment information on the ballot and on the receipt must differ. The proof consists either of a row containing the fresh random number but no mark without revealing which row this is or the proof consists of the two differing alignment bar codes without showing the mark at all. After the publication of the receipts the situation is analogous to the paper based schemes above as the voter possesses a correct receipt as electronic evidence. In addition to using unforgivable receipts with a special paper one can assume a trusted printer containing a chip card this printer could have the chip card and print the signature to the receipt. Having two in dependent ways to proved receipt to be not a forgery is a big advantage. REFERENCES D. Balzarotti, G. Banks, M. Cova, V. Felmetsger, R. A. Kemmerer, W. Robertson, F. Valeur, and G. Vigna, ââ¬Å"An Experience in Testing the Security of Real-World Electronic Voting Systems,â⬠IEEE Transactions on Software Engineering, vol. 36, no. 4, 2010. [2] A. Villa? orita and K. Weldemariam, and R. Tiella, ââ¬Å"Development, Formal Veri? ation, and Evaluation of an E-Voting System with VVPAT,â⬠IEEE Transactions on Information Forensics and Security, vol. 4, no. 4, 2009. [3] Y. D. Wagner, M. Bishop, T. Baker, B. D. Medeiros, G. Tyson, M. Shamos, and M. Burmester, ââ¬Å"Software Review and Security Analysis of the ES I Votronic 8. 0. 1. 2 Voting Machine Firmware,â⬠Technica l report, Security and Assurance in Information Technology Laboratory, 2007. [4] T. Kohno, A. Stubblefield, A. Rubin, and D. Wallach, ââ¬Å"Analysis of an Electronic Voting System,â⬠in Proc. of IEEE Symp. Security and Privacy, pp. 27-40, 2004. [5] E. Proebstel, S. Riddle, F. Hsu, J. Cummins, F. Oakley, T. Stanionis, and M. Bishop, ââ¬Å"An Analysis of the Hart Intercivic DAU eSlate,â⬠in Proc. of Usenix/Accurate Electronic Voting Technology Workshop, 2007. [6] D. Molnar, T. Kohno, N. Sastry, and D. Wagner, ââ¬Å"Tamper-Evident, History Independent, Subliminal-Free Data Structures on PROM Storage-or-How to Store Ballots on a Voting Machine (Extended Abstract),â⬠in Proc. of IEEE Symp. Security and Privacy, pp. 365-370, 2006. [7] J. Bethencourt, D. Boneh, and B. Waters, ââ¬Å"Cryptographic Methods for Storing Ballots on a Voting Machine,â⬠in Proc. of Network and Distributed System Security Symp, 2007. 8] S. Garera and A. Rubin, ââ¬Å"An Independent Audit Framework for Software Dependent Voting Systems,â⬠in Proc. of ACM conf. Computer and Comm. Security, pp. 256-265, 2007. [9] J. Hall, ââ¬Å"Improving the Security, Transparency and Efficiency of Californiaââ¬â¢s 1 Percent Manual Tally Procedures,â⬠in Proc. of Usenix/ Accurate Ele ctronic Voting Technology Workshop, 2008. [10] K. Weldemariam and A. Villafiorita, ââ¬Å"Modeling and Analysis of Procedural Security in (e) Voting: The Trentinoââ¬â¢s Approach and Experiences,â⬠in Proc. of Usenix/Accurate Electronic Voting Technology Workshop, 2008. [11] R. Hite, ââ¬Å"All Levels of Government are needed to Address Electronic Voting System Challenges,â⬠Technical report, GAO, 2007. [1] Fig. 8. Flowchart of program IV. RESULTS AND ANALYSIS This work contributed to three very basic research questions arising: in the context of verifiable elections. First, we discussed the problem of keeping ballot secrecy to a certain extent in the case of a corrupted doting machine or voting authority. Our contribution to this is an approach where all secret information is encapsulated in the voting machine. Second, we considered the attack of receipt stealing and manipulation of the corresponding votes. Here we proposed a novel approach of linking all receipts by a hash chain such that each single receipt guards the integrity of all receipts issued previously. Together with a display in the polling place this approach shortens the time window in which an adversary can perform the ballot stealing attack without almost zero risk. Third, we discussed in detail the possibility of contesting an election based on the evidence provided by the verifiable election scheme. We compared the situation for Bingo Voting to the evidence provided by paper based schemes. We shortly sketched an approach to prove an error or a manipulation in the voting booth without violating ballot secrecy. However, this was only a proof of concept and for a practical application the usability of this approach needs to be further improved. V. CONCLUSION As part of these exercises, we devised a testing methodology, developed new tools that are specifically tailored to the security analysis of these systems, and learned a number of lessons, all of which should be of use to other 189 International Journal of Information and Electronics Engineering, Vol. 3, No. 2, March 2013 [12] M. Gondree, P. Wheeler, and D. D. Figueiredo, ââ¬Å"A Critique of the 2002 FEC VSPT E-Voting Standards,â⬠Technical report, Univ. of California, 2005. [13] R. Mercuri. Voting System Guidelines Comments. [Online]. Available: http:// www. wheresthepaper. org/VVSGComment. pdf, 2005. [Online]. Available: [14] Atmel. atmel. com/Images/doc2466. pdf Mr. Diponkar Paul is currently working as Assistant Professor in the department of Electrical and Electronic engineering at World University of Bangladesh, Dhaka, Bangladesh (www. wub. edu. bd ). After passing his master degree from March 2008 he was serving as Assistant Professor, EEE at Bangladesh University upto July 2010. He is having qualifications: B. Sc. Engg. , DISM (software engineering), M. Sc. Engg. His research interests are in the area of energy conversions, power system modeling and advanced control theories covering the application of IT. From 0ct 2004 to July 2006, he was working as Lecturer in department of computer science and engineering at Pundra University of science technology, Bogra. In Singapore during his master dgree at Nanyang technological university, he was involved in financial service operation integrated to IT system administration jobs from Dec 2006 to February 2008. Mr. Sobuj Kumar Ray was born in 1987, Bogra, Bangladesh. Mr. Ray received his Bachelor degree in Electrical and Electronic Engineering from the Rajshahi University of Engineering and Technology (RUET), Rajshahi, Bangladesh in April 2010. He is now Assistant Manager (Technical) in DESCO. Mr. Ray worked at Internal University of Business Agriculture and Technology in the department of Electrical and Electronic Engineering, Dhaka, Bangladesh (www. iubat. edu) from 12th July 2010 to 1st October, 2012. He is enthusiastic on researcher on control system and Power System. 190
Tuesday, November 5, 2019
Biography of Robert Hooke, the Man Who Discovered Cells
Biography of Robert Hooke, the Man Who Discovered Cells Robert Hooke (July 18, 1635ââ¬âMarch 3, 1703) was a 17th-century natural philosopher- an early scientist- noted for a variety of observations of the natural world. But perhaps his most notable discovery came in 1665 when he looked at a sliver of cork through a microscope lens and discovered cells. Fast Facts: Robert Hooke Known For: Experiments with a microscope, including the discovery of cells, and coining of the termBorn: July 18, 1635 in Freshwater, the Isle of Wight, EnglandParents: John Hooke, vicar of Freshwater and his second wife Cecily GylesDied: March 3, 1703 in LondonEducation: Westminster in London, and Christ Church at Oxford, as a laboratory assistant of Robert BoylePublished Works: Micrographia: or some Physiological Descriptions of Minute Bodies made by Magnifying Glasses with Observations and Inquiries Thereupon Early Life Robert Hooke was born July 18, 1635, in Freshwater on the Isle of Wight off the southern coast of England, the son of the vicar of Freshwater John Hooke and his second wife Cecily Gates. His health was delicate as a child, so Robert was kept at home until after his father died. In 1648, when Hooke was 13, he went to London and was first apprenticed to painter Peter Lely and proved fairly good at the art, but he left because the fumes affected him. He enrolled at Westminster School in London, where he received a solid academic education including Latin, Greek, and Hebrew, and also gained training as an instrument maker. He later went on to Oxford and, as a product of Westminster, entered Christ Church college, where he became the friend and laboratory assistant of Robert Boyle, best known for his natural law of gases known as Boyles Law. Hooke invented a wide range of things at Christ Church, including a balance spring for watches, but he published few of them. He did publish a tract on capillary attraction in 1661, and it was that treatise the brought him to the attention of the Royal Society for Promoting Natural History, founded just a year earlier. The Royal Society The Royal Society for Promoting Natural History (or Royal Society) was founded in November 1660 as a group of like-minded scholars. It was not associated with a particular university but rather funded under the patronage of the British king Charles II. Members during Hookes day included Boyle, the architect Christopher Wren, and the natural philosophers John Wilkins and Isaac Newton; today, it boasts 1,600 fellows from around the world. In 1662, the Royal Society offered Hooke the initially unpaid curator position, to furnish the society with three or four experiments each week- they promised to pay him as soon as the society had the money. Hooke did eventually get paid for the curatorship, and when he was named a professor of geometry, he gained housing at Gresham college. Hooke remained in those positions for the rest of his life; they offered him the opportunity to research whatever interested him. Observations and Discoveries Hooke was, like many of the members of the Royal Society, wide-reaching in his interests. Fascinated by seafaring and navigation, Hooke invented a depth sounder and water sampler. In September 1663, he began keeping daily weather records, hoping that would lead to reasonable weather predictions. He invented or improved all five basic meteorological instruments (the barometer, thermometer, hydroscope, rain gauge, and wind gauge), and developed and printed a form to record weather data. Some 40 years before Hooke joined the Royal Society, Galileo had invented the microscope (called an occhiolinoà at the time, or wink in Italian); as curator, Hooke bought a commercial version and began an extremely wide and varying amount of research with it, looking at plants, molds, sand, and fleas. Among his discoveries were fossil shells in sand (now recognized as foraminifera), spores in mold, and the bloodsucking practices of mosquitoes and lice. Discovery of the Cell Hooke is best known today for his identification of the cellular structure of plants. When he looked at a sliver of cork through his microscope, he noticed some pores or cells in it. Hooke believed the cells had served as containers for the noble juices or fibrous threads of the once-living cork tree. He thought these cells existed only in plants, since he and his scientific contemporaries had observed the structures only in plant material. Nine months of experiments and observations are recorded in his 1665 book Micrographia: or some Physiological Descriptions of Minute Bodies made by Magnifying Glasses with Observations and Inquiries Thereupon, the first book describing observations made through a microscope. It featured many drawings, some of which have been attributed to Christopher Wren, such as that of a detailed flea observed through the microscope. Hooke was the first person to use the word cell to identify microscopic structures when he was describing cork. His other observations and discoveries include: Hookes Law: Aà law of elasticity for solid bodies, which described how tension increases and decreases in a spring coilVarious observations on the nature of gravity, as well as heavenly bodies such as comets and planetsThe nature of fossilization, and its implications for biological history Death and Legacy Hooke was a brilliant scientist, a pious Christian, and a difficult and impatient man. What kept him from true success was a lack of interest in mathematics. Many of his ideas inspired and were completed by others in and outside of the Royal Society, such as the Dutch pioneer microbiologist Antoni van Leeuwenhoek (1632ââ¬â1723), navigator and geographer William Dampier (1652ââ¬â1715), geologist Niels Stenson (better known as Steno, 1638ââ¬â1686), and Hookes personal nemesis, Isaac Newton (1642ââ¬â1727). When the Royal Society published Newtons Principia in 1686, Hooke accused him of plagiarism, a situation so profoundly affecting Newton that he put off publishing Optics until after Hooke was dead. Hooke kept a diary in which he discussed his infirmities, which were many, but although it doesnt have literary merit like Samuel Pepys, it also describes many details of daily life in London after the Great Fire. He died, suffering from scurvy and other unnamed and unknown illnesses, on March 3, 1703. He neither married nor had children. Sources Egerton, Frank N. A History of the Ecological Sciences, Part 16: Robert Hooke and the Royal Society of London. Bulletin of the Ecological Society of America 86.2 (2005): 93ââ¬â101. Print.Jardine, Lisa. Monuments and Microscopes: Scientific Thinking on a Grand Scale in the Early Royal Society. Notes and Records of the Royal Society of London 55.2 (2001): 289ââ¬â308. Print.Nakajima, Hideto. Robert Hookes Family and His Youth: Some New Evidence from the Will of the Rev. John Hooke. Notes and Records of the Royal Society of London 48.1 (1994): 11ââ¬â16. Print.Whitrow, G. J. Robert Hooke. Philosophy of Science 5.4 (1938): 493ââ¬â502. Print.
Sunday, November 3, 2019
Leadership theory (transformational theory) the components are Essay
Leadership theory (transformational theory) the components are inspiration & individualized consideration - Essay Example Inspiration in transformational leadership means the positive impact a leader has on his followers. The leader should inspire a vision that brings out the best capabilities of his sub-ordinates and pushes them to give their best. On their level best inspiration will push the sub-ordinates to go beyond the ordinary, inspiring extra-ordinary confidence and optimism about the future and belief in their own capabilities. The theory works well across all cultures and cross-culture as well. In Arabic cultures people are inspired by leaders who have a personal touch to their work. While in western cultures work is non-personal. Nevertheless, both the cultures require an inspiration and leaders in both cultures follow transformational models. Individualized consideration is the second part of transformational leadership theory which actually works reasonably well across cultures. Individualized consideration requires the leader to attend to each sub-ordinate individually, keeping all communication channels open and learning about behavior patterns. This also encourages the sub-ordinates to share ideas and celebrate the idea of individual contribution to a project. Individualized consideration works because the leader acts like mentor instead of a bureaucratic boss. Sub-ordinates warm up to the idea of contributing more to their jobs than routine work and they also feel that they are being given special attention by their bosses. Secondly, transformational leadership has lead leaders to work more efficiently in different cultures and different settings due to its wide acceptance. The Internet has made the sub-ordinates more open to transformational type of leadership which is helping different cultures assimilate. A few days back I decided to take up a small job as the store manager. It wasnââ¬â¢t something I hadnââ¬â¢t done before. Back in high school I had worked with my dad at his shop but to work for someone else is new to
Friday, November 1, 2019
Make up a topic for me Essay Example | Topics and Well Written Essays - 1250 words
Make up a topic for me - Essay Example Before the Han dynasty, there were very few sculptures and painting in China. Sculptures were introduced after the arrival of Buddhism in China. Decorations were mainly in two dimensions. At first, the curving of sculptures was restricted to animal figures. Sculptures of human were made after the 1 century and were at first limited to sculptures of Buddha and ceremonies related to Buddhism (Bushell, 154). This paper looks at how Buddhism influenced the development of art in China by using a few examples. There are several paintings that have been drawn by Chinese artists of Buddha and various monks. Moreover, there is painting that tells stories adopted from the Buddhist religion. An example is the drawing of Buddha on the wall of the temple meant for Jiankang by the famous Chinese artist of the Jin dynasty Gu Kaizhi (Williams & Barrow, 54). Buddhism led to the development of the painting of the human figure. The led to the development of a new genre called ââ¬Å"Renwuâ⬠: the h uman figure genre which is one of the 4 disciplines in Chinese art. This led to the development of great painters of portrait who gained their fame status by painting Buddhist figure, Buddha and Bodhisattvas. Some of these great artists include Wie Xie of the 4th century, Gu Kaizhi (346-405 AD) and Sengyao (6th century AD) among other contemporary artists (Williams & Terence, 320). Painting of portraits wee guided by the 6 principles developed by Xie Heà which he codified by following the Indian rules of painting. ââ¬Å"Lohan seated in a treeâ⬠is an example of a painting from the Ming dynasty is an example of a painting that has been greatly influenced by Buddhism. It was painted by Ding Ynpeng and is one of the earliest Chinese paintings showing a Buddhist monk in a tree. This painting is different from other Chinese paintings of the 13th century as it is displayed in bright color showing vitality and liveliness. This is because Lohan means enlightened being and the painte r clearly shows this theme. An important thing to observe about these painting is that although the dead were originally from India, the Chinese artists have made their own modifications and innovations that make the images to be more authentic (Kieschnick, 140). From the 1st century to the 18th century, Chinese artists have continued to depart from the original Indian principles of painting to a new style that is unique to china. Studying of the Chinese sculpture of Liao dynasty (907-1125) is important because they are the type that is mostly found in international museums around the world such as America, British and Asian museums. The art from this era were predominantly Buddhist. In the western Capital of Liao, there are three monuments made of sculptures of the rules of this generation. Observing the sculpture closely one can observe that the artists borrowed a lot from the sculptures of Bodhisattvas who are people who endeavor to become Buddha (Williams & Terence, 378). For in stance, there is a halo surrounding the head of the sculptures. Moreover, the sculptures have other features that were common in the representation of the Buddhist deities and include jewelry, costumes and crowns. The 292 Dunhuang caves are the perfect representation of Buddhist influence on Chinese art. The first Dunhuang cave was developed by a Buddhist monk in the third century and it was called ââ¬Å"
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